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Letter of Credit Operation in Bangladesh

Sales 2016. 6. 24. 11:35

방글라데시 내국인들이 배우는 L/C 작성지침 ?

CHAPTER ONE: INTRODUCTION

BACKGROUND


The volume of trade transactions is gradually increasing in the international arena. To secure the international trade payment is particularly very crucial. There are so many factors that may affect the matter of securing payment for an international transaction. Most important among them are the potential risk and cost that the exporters and the importers are willing to face or share between them. There are four methods in international trade payment: Cash in Advance or prepayment; Open Account; Documentary Collection; and Documentary Credit. Under Cash in Advance or prepayment method payment is expected by the exporter, in full, prior to goods being shipped. This is the most secure method of payment for the exporters and consequently the least attractive for importers. On the other hand, open account is the least secure method of payment for the exporters. But it is the most attractive method for the importers. Documentary collection is more secure method for an exporter than open account trading, as the exporter’s documents are sent from the exporter’s bank to the importer’s bank. However, among all the mentioned methods, documentary credit method distributes risks in most balanced way in which both importers and exporters are almost equally protected.

Letter of Credit (L/C) or the Documentary Letter of Credit is the most popular international trade payment method in Bangladesh, which covers the issues like potential risk that the parties in international trade namely the importers and exporters wish to face or share between them. Choudhury and Habib (2006) noted that Documentary Credit method distributes risks in most balanced way in which both exporters and importers are almost equally protected. They indicated the Documentary Credit process as “the life blood of international commerce” that is governed by a widely recognized and popular guiding framework of ICC known as ‘Uniform Customs and Practices for Documentary Credit’ publication number 600.

Although Documentary Credit method distributes risks in most balanced way for exporters and importers; it is facing challenge since the method requires huge documentation and cost. Furthermore, electronic payment system is evolving which could be a major threat for the Letter of Credit method. Notwithstanding, it is still highly reliable method of payment.

Bangladesh is basically a seller’s market since it is an import-based country. Therefore, on the basis of our traders’ credibility, relative bargaining power, banks and regulatory requirements Documentary Letter of Credit is deemed to be the best fitted as the international trade payment method. The government of a developing country like Bangladesh tends to retain stringent control on foreign trade operations and thus Documentary Credit has a widespread use in our country as it provides useful additional weapon in the government’s control and supervisory mechanism. In more than 97% cases of import payment and in more than 65% cases of export payment, Letter of Credit method is used for the settlement (Choudhury and habib;2006).

The ongoing globalization process has bought considerable changes in international trade transactions and practices. Greater involvement of costs in documentary credit operations is one of the main reasons of switching to other modes of payment. Declining reliance on documentary may raise payment related risks. It is well known that in some cases, disagreement relating to trade payment through Letter of Credit method arises. So it is a timely issue to explore the reasons behind this. Currently, the cost of issuing L/C is increasing. It is increasing the expenses of the traders. Although operation of L/C is guided by UCPDC 600, Bangladesh government has its own domestic Foreign Exchange Regulations, Import and Export Policy. So on the basis of the above background, the questions that would be investigated include: How cost-risk tradeoff could be balanced? What attributes make the L/C method reliable and acceptable than other trade payment method? Are there discrepancies between these two international and domestic rules?

OBJECTIVES OF THE STUDY

Based on the above background, the specific objectives of the study are:

1) To discuss the operational procedures of Letter of Credit operation and a comparison of L/C with other methods.

2) To review the regulatory and legal aspects of Letter of Credit as an international trade payment method.

3) To discuss the Letter of Credit operation in the context of Bangladesh.

METHODOLOGY

For attaining the objectives, both primary and secondary data have been collected. Secondary data sources are related to practices of Letter of Credit operation, various documents of ICC and domestic laws and provisions. A questionnaire survey has been conducted for collecting primary data. The survey area is the AD branch of some selected commercial banks. Furthermore, interview method has been used to have a clear view about the bankers’ expertise and traders’ knowledge on Documentary Credit operations.

Dealing Officers of foreign trade divisions of the selected banks were interviewed. Six major AD branches of three commercial banks were selected on the basis of convenience. All the branches are located within Dhaka city.

LIMITATION OF THE STUDY

Time limitation is a great factor for researching on such a vast topic. As this study has been accomplished on the basis of the data collected from only 3 commercial banks which may not reveal the real scenario of the operations and practices of L/C in Bangladesh.

ORGANIZATION OF THE STUDY

This report has five chapters. First chapter includes background, objectives of the study, methodology and limitation of the study. Chapter two covers sales and purchase contracts in international trade, international trade payment methods, benefits of the documentary credit, types of documentary credit, parties to a letter of credit, operations of letter of credit and common documents required for documentary letter of credit. Under chapter three Domestic Regulations/Guidelines/Policies, Uniform Customs and Practices for Documentary Credit (UCP 600), Uniform Rules for Bank to Bank Reimbursement (URR 525), Incoterms-2000 and ISBP (International Standard Banking Practices) have been covered. Chapter four includes import procedure, import financing, export procedure, export financing, methods of payment used in making and getting payment, formalities and margin requirement while opening letter of credit, forms of letter of credit in use, documentary requirements, examination of documents, availability of credit, charges and commissions. Chapter five covers observation and conclusion.

CHAPTER TWO: SALES AND PURCHASE CONTRACT, TRADE PAYMENT METHODS AND OTHER ASPECTS OF LETTER OF CREDIT

Sales And Purchase Contracts in International Trade

In the contract, there will be an offer from the seller and purchaser will have to accept it. The contents of the contract will be determined by both the buyer and seller. The influence in determining the terms and conditions of the contract will be manipulated by buyers/sellers bargaining power/strength. The developing countries buyers/sellers strength is lesser than the strength of developed countries. Quality of product is also important factor in International Trade. The country, which has comparative advantage, has more bargaining power. Or volume of products produced by the country also important in International Trade.

Without documentary credit, the international trade is being done by contracts. These contracts have the following features:

1) Offer and Acceptance: There must be direct or indirect offer and acceptance. Buying house or Indenting firms act on behalf of the Principal buyer and enter into indirect Offer & Acceptance.

2) Proforma Invoice and Indent.

3) General Terms and Conditions:

Contract terms and conditions may differ from one buying/selling operation to another, depending on the nature of goods and services relative bargaining strength of the buyer and seller and market conditions at the time of buying/selling.

The following are most common clauses on a contract:

1) Which conditions to apply.

2) Definition of the terms- No ambiguous should be included in the contract. But if used it should be clearly defined.

3) Conclusion of the contract- either agreed or disagreed.

4) Assignment- right given by the one party to another party to the interest of concerns parties. Without the consent of the buyer assignment is not be established.

5) Trade Terms- Incoterms is to be identified.

6) Quality and Quantity- vital terms in the contract. Because the buyer has the right to refuse goods if it is not as per the specified terms.

7) Pre-shipment Inspection (PSI).

8) Price and payment & expenditure: ICC- Institute of Cargo Clause & Marine Insurance clause.

9) Third party claim- there should not be any third party claim.

10) Delivery and liquidity damages.

11) Warranty/ Guarantee

12) Force Majeure (Act of God) like political hazards, natural calamity etc.

13) Transfer of risk- who will bear insurance expense.

14) Shipping documents- a copy of shipping documents must be sent to the seller alongwith the transport documents before claiming any payment.

15) Dispute settlement.

16) Acceptance (acceptance of goods).

17) Packing and Marking.

International Trade Payment Methods

In International Trade, there are a number of modes of payment which are being used for receiving trade proceeds. They are:

1) Cash in Advance

2) Open Account

3) Documentary Collection; And

4) Documentary Credit ( L/C )

Among these, documentary credit has been observed to be used mostly in our country. The procedures and pros and cons of each of the payment methods have been discussed in this chapter.

Cash in Advance

In Cash in advance method, the buyer places the fund at the disposal of seller (exporter) prior to shipment of goods in accordance with the sales or purchase contract, which is certainly to be concluded between an exporter and importer before the trade transactions. This method of payment is expensive and contains a lot of risks on the part of buyer (because they have no assurance that what they contracted for will be supplied and received in appropriate manner), they may not be willing to accept such terms of payments. Thus it is rarely used in Bangladesh.

Cash in Advance

This method of payment is used

  • When the buyer’s credit is doubtful.
  • When there is an unstable political or economic environment in the buyer’s country.
  • If there is a potential delay in the receipt of funds from the buyer, perhaps due to events beyond his control.

Advantage to the seller

  • Immediate use of funds.

Disadvantage to the Buyer

  • He pays in advance, tying up his capital prior to receipt of the goods or services.
  • He has no assurance that what he contracted for will be:
    • Supplied
    • Received
    • Received in timely fashion
    • Received in the quality or quantity ordered

Open Account System

In this system, an arrangement takes place between the buyer and seller (sales/ purchase contract) whereby the goods are manufactured and delivered before payment is required. Open account provides for payment at some stated specific future date and without requiring the buyer to issue any negotiable instrument evidencing his legal commitment. The seller must have absolute trust that he will be paid at the agreed day. Though the seller can avoid a lot of banking charges and other cost, but he has no security that he will be receiving payment in due course. For this reason, the exporter may not be willing to accept this sort of mode of payment. This system is also uncommon Bangladesh.

Advantage to the Buyer

He pays for the goods or services only when they are received and/or inspected. Payment is conditioned on the basis of political, legal and economic issues.

Disadvantages to the Seller

He releases the title to the goods without having assurance of payment. There is possibility that political events will impose regulations which defer or block the movement of funds to him. His own capital is tied up until the goods are received and/ or inspected by the buyer or until the services are found to be acceptable and payment is made.

Documentary Collection

This is an arrangement (sales/ purchase contract) whereby the goods are shipped and the relevant bill of exchange or draft is drawn by the seller on the buyer and documents are sent to the seller’s bank with clear instructions for collection through one of its correspondent bank’s located in the buyer’s domicile. Normally, title to the goods does not pass to the buyer (unless the buyer named consignee on the transport document) until the Draft is paid or accepted by the buyer. Collection provide the parties with an alternative arrangement other than open account or cash in advance. Collections are usually connected with the sale of goods rather than with the provision of services.

Though documentary collection is inexpensive and simple to arrange, exporter is required to ship the goods without an unconditional guarantee or promise of payment by the buyer. However, as compared to cash in advance and open account, documentary collection is a much more common means of payment.

Documentary Collection

Advantage to the seller

Documentary Collections are uncomplicated and inexpensive Documents of value, i.e. title documents, are not released to the buyer until payment or acceptance has been affected. In the event of non payment or non acceptance the collecting bank, if properly authorized, may arrange for the goods released, and ware housing, insurance or even reshipment to the seller. Collections may facilitate pre-export or post export financing.

Disadvantage to the seller

He ships the goods without an unconditional promise of payment by the buyer There is no guarantee of payment or immediate payment by the buyer. He ties up his capital until the funds are received. Advantage for the buyer

Collections may favor the buyer since payment is deferred by him until the goods arrive or even later if delayed payment arrangements are agreed to. Disadvantages to the buyer

By defaulting on a bill of exchange he may become legally liable. His trade reputation may be damaged if the collection remains unpaid.

Documentary Credit

Documentary Credit or Letter of Credit can be defined as an ‘undertaking’ whereby the buyer’s bank is committed (on behalf of the buyer) to place an agreed amount of money at the seller’s disposal under some agreed conditions. Since the agreed conditions include, amongst other things, the presentation of some specified documents, the letter of credit is called Documentary Letter of Credit. The Uniform Customs and Practices for Documentary Credit (UCPDC) published by International Chamber of Commerce (2007) Revision; Publication No. 600 defines Documentary Credit.

“Credit means any arrangement, however named or described, that is irrevocable and thereby constitute a definite undertaking of the issuing bank to honor a complying presentation.”

Complying presentation means a presentation that is in accordance with the terms and conditions of the credit ( ISBP-2007 ), the applicable provisions of these rules ( UCP-600) and international standard banking practice. According to the definition of ‘Credit’, when an issuing bank determines that a presentation is complying, it must honor.

Honor means,

to pay at sight, if the credit is available by sight payment, to incur a deferred payment undertaking and pay at maturity if the credit is available by deferred payment, to accept a bill of exchange ( draft ) drawn by the beneficiary and pay at maturity if the credit is available by acceptance.

Documentary Credit

This documentary credit arrangement usually satisfies the seller’s desire for cash and the importer’s desire for credit. This financial instrument serves the interest of both parties independently. The documentary credit offers a unique and universally used method of achieving a commercially acceptable undertaking by providing for payment to be made against complying documents that represent the goods and making possible the transfer of title to those goods.

Under a documentary credit operation, there exists a distinct triangular contractual arrangement:

∆ First, the sales contract between seller and buyer.

∆ Second, the “Application and Security Agreement” or the “Reimbursing Agreement” between the buyer ( the Applicant ) and the issuer ( the issuing Bank ), and

∆ Third, the documentary credit between the issuing bank and the beneficiary. If the documentary credit is confirmed by another bank, then such bank undertakes it’s own contractual agreement, in addition to that of the issuing bank, to the beneficiary.

Each contract is independent and controls the respective relationship between the parties. The UCP 600 in Sub-Article 4 (a) recognizes that relationship and states:

“A credit by its nature is a separate transaction from the sale or other contact on which it may be based. Banks are in no way concerned with or bound by such contract, even if any reference whatsoever to it is included in the credit. Consequently the undertaking of a bank to honour or negotiate or to fulfill any other obligation under the credit is not subject to claims or defences by the applicant resulting from his relationships with the issuing bank or the beneficiary.”

Benefits of the Documentary Credit

Facilitates Financing

The Documentary Credit

v provides a specific transaction with an independent credit backing and a clear cut promise of payment

v satisfies the financing needs of the seller and the buyer by placing the bank credit standing, distinguished from the bank’s funds, at the disposal of the both the parties

v may allow the buyer to obtain a lower purchase price for the goods as well as longer payment terms than would open account terms or a collection

v reduces or eliminates the commercial credit risk single payment is assured by the bank which issues an irrevocable letter of credit. The seller no longer needs to rely on the willingness and capability of the buyer to make payment

v reduces certain exchange and political risks while not necessarily eliminating them

v may not require actual segregation of cash, since the buyer is not always required to collateralized his credit obligation to the issuing bank. And

v expands sources of supply for the buyers since certain sellers are willing to sell only against cash in advance or documentary credit.

Provides Legal Protection

Documentary Credits are supported by a wide variety of laws and regulations, such as:

legislative and semi-legislative law

codified law- in most countries the law for the Documentary Credit has been codified, e.g. in

civil law code countries , and in

common law code countries

decisional law- statutory laws governing Documentary Credits are found in various jurisdictions. There are extensive legal cases that have interpreted this provisions and are well known in judicial circles

contractual law/ customary law- in addition to codified and case law, documentary credits are governed by the ICC’s UCPDC-600. These rules , which are periodically revised, have been in effect since 1933 and are the set of universally recognized rules governing documentary credit operations.

Assures expert examination of documents

Through The Documentary Credit:

The buyer is assured that the documents required by the documentary credit ( if issued subject to the UCP ) must be presented in compliance with the terms and conditions of the documentary credit and UCP rules. The buyer is assured that the documents presented will be examined by banking personnel knowledgeable in documentary credit operations, and The buyer is confident that the payment will only be made to the seller after the terms and conditions of documentary credit and UCP rules are complied with.

Parties to a Letter of Credit

The parties are:

  • The issuing bank
  • The confirming bank, if any, and
  • The beneficiary

Other parties which facilitate the Documentary Credit are:

  • The applicant
  • The advising bank
  • The nominated bank
  • The reimbursing bank
  • The claiming bank
  • The presenter
  • The transferring bank

ISSUING BANK: It is the bank that issues a credit at the request of an applicant or on its own behalf.

CONFIRMING BANK: Confirming Bank means the bank that adds it’s confirmation to a credit upon the issuing bank’s authorization or request. Confirmation means a definite undertaking of a confirming bank in addition to that of the issuing bank to honor or negotiate a complying presentation.

BENEFICIARY: It is the party in whose favor a credit is issued.

APPLICANT: Applicant means the party in whose request the credit is issued.

ADVISING BANK: Advising Bank means the bank that advises the credit at the request of the issuing bank. However, an advising bank may utilize the services of another bank (2nd Advising Bank) to advise the credit and any amendment to the beneficiary.

NOMINATED BANK: It means the bank with which the credit is available or any bank in the case of a credit available with any bank.

REIMBURSING BANK: It means the bank , appointed by the issuing bank, to reimburse the claims of payment of the claiming bank.

CLAIMING BANK: It means the nominated bank which claims the payment from the reimbursing bank.

PRESENTER: It means a beneficiary, a bank or other party that makes a presentation.

TRANSFERRING BANK: Transferring Bank is a nominated bank that transfers the credit. In case of credit available with any bank, transferring bank is specially authorized by issuing bank. An issuing bank may also be a transferring bank.

Types of Documentary Credit

Article 3 of UCP 600 says that a credit is irrevocable even if there is no indication to that effect. It therefore, indicates that (under UCP 600) there is only one type of credit, named irrevocable letter of credit.

Other Documentary Credits:

Confirmed Documentary Credit: A confirmation of a documentary credit by a bank (confirming bank) upon the authorization or request of the issuing bank constitutes a definite undertaking of the confirming bank, in addition to that of the issuing bank, provided that the stipulated documents are presented to the confirming bank or to any other nominated bank on before the expiry date and the terms and conditions of the documentary credit are compiled with either to negotiate or to honour.

Revolving Credit: A revolving documentary credit is one by which, under the terms and conditions thereof, the amount is renewed or reinstated without specific amendments to the documentary credit being required. The revolving documentary credit may revolve in relation to time or value. A documentary credit of this nature may be cumulative or non-cumulative.

Transferable Credit and Transferred Credit: Transferable credit means a credit that specifically states it is “transferable”. It may be made available in whole or in part to another beneficiary (second beneficiary) at the request of the first beneficiary. Transferred Credit means a credit that has been available by the transferring bank to the second beneficiary.

Back to Back Credit: The Back to Back credit is a new credit opened on the basis of the original credit in favour of another beneficiary. Under back to back concept, the seller as the beneficiary of the first credit offers it as security to his bank for the issuance of the second credit. The beneficiary of the back to back credit may be located inside or outside the original beneficiary’s country.

Red Clause Credit : A red clause credit is a credit with a special condition incorporated into it that authorizes the confirming bank or any other nominated bank to make advance to the beneficiary before presentation of the documents. Under the above credit, the issuing is liable for pre-shipment advances made by the nominated bank, in case the beneficiary fails to repay or present the documents for settlement.

Standby Credits: The Standby Credit is a documentary credit or similar arrangement, however named or described, which represents an obligation to the beneficiary on the part of the issuing bank to

a) Repay money borrowed by the applicant, or advanced to or for the account of the applicant;

b) Make payment on account of any indebtedness undertaken by the applicant; or

c) Make payment on account of any default by the applicant in the performance of an obligation.

Operations of Documentary Letter of Credit

The following five major steps are involved in the operation of Documentary letter of Credit.

ü Issuing

ü Advising

ü Confirmation and Amendment ( if necessary )

ü Presentation, And

ü Settlement

Issuing a Letter of credit: Before issuing L/C, the buyer and seller located in different countries conclude a ‘sales contract’ providing for payment by documentary credit. As per requirement of the seller, the buyer then instructs he bank-the issuing bank-to issue a credit in favor of the seller or beneficiary. Instruction/Application for issuing a credit should be made by the buyer (importer) in the issuing bank’s standard form. The credit application which contains the full details of the proposed credit, also serve as an agreement between the bank and the buyer. After being convinced about the conditions contained in the application form the issuing then proceeds for opening the credit to be addressed to the beneficiary.

Advising a Letter of Credit: Advising through a bank is proof of apparent authenticity of the credit to the seller. The process of advising the credit consists of forwarding the original credit to the beneficiary to whom it is addressed. Before forwarding, the advising bank has to verify the signatures of the officers of the issuing bank and ensures that the terms and conditions of the credit are not in violation of the existing exchange control regulations and other regulations relating to export. In such act of advising, the advising bank does not undertake any liability. However, the advising bank may utilize the services of another bank ( second advising bank ) to advise the credit and any amendment to the beneficiary.

Confirmation and Amendment of Credit: The beneficiaries are not always willing to rely on the credit standing of the issuing bank- particularly when the bank is unknown to the beneficiary. Consequently, the beneficiary ma y request that the applicant instruct the issuing bank to have it’s credit confirmed by a confirming bank, usually in the beneficiaries country. Moreover parties involved in L/C particularly the seller and the buyer can not always satisfy the terms and conditions full as expected due to some genuine and obvious reasons. In such a situation, the credit should be amended. However, a credit can neither be amended nor cancelled without the agreement of the issuing bank, the confirming bank ( if any ) and the beneficiary.

Presentation of Documents: The seller being satisfied with the terms and conditions of the credit proceeds to dispatch the required goods to the buyer and after that, has to present the documents evidencing dispatch of goods and fulfilling other terms and conditions of L/C to the issuing or nominated bank on or before the stipulated expire date of the credit. After receiving all the documents, the issuing or nominated bank examines the documents against the credit. If the documents are found complying, the bank will honor or negotiate.

Settlement: Settlement means fulfilling the commitments of the issuing bank in regard to effecting payment subject to satisfying the credit terms fully. This settlement may be done under three separate arrangements as stipulated in the credit. These are:

Settlement by payment: Here the presenter/beneficiary presents the documents to the nominated or issuing bank and the bank then scrutinizes the documents. If satisfied, the nominated or issuing bank makes payment to the beneficiary and in case this bank is other than the issuing bank, then sends the documents to the issuing bank. If the issuing bank is satisfied with the requirements, payment is obtained by the nominated bank from the issuing bank.

Settlements by Acceptance: Under this arrangement, the beneficiary/ presenter submits the documents to the nominated/issuing bank accompanied by a draft drawn on the bank ( where the credit is available ) at the specified tenor. After being satisfied with the documents, the bank accepts the documents and the draft and if the bank is other than the issuing bank, then sends the documents to the issuing bank stating that it has accepted the draft and at maturity the reimbursement will be obtained in the pre-agreed manner.

Settlement by Negotiation: This settlement procedure starts with the submission of the documents by the beneficiary/presenter to the nominated bank accompanied by a draft drawn on the issuing bank or any other drawee, at sight or at the tenor, as specified in the credit. After scrutinizing that the documents meet the credit requirements, the bank will purchase the drafts and/or documents, advance or agree to advance funds on or before reimbursement is due. This bank then sends the documents and the drafts to the issuing bank. As usual reimbursement will be obtained in the pre-agreed manner.

Common Documents under Documentary Letter of Credit Bill of exchange/Draft:

The draft must bear the correct Documentary reference number. The draft must be date before expiry of the L/C and within the stipulated period for negotiation. It must be dawn or endorsed to the order of the bank. It is drawn by the party indicated as the beneficiary of the credit. It is drawn on the party indicated as the draw of the credit. It is market as drawn under the proper L/C of the bank quoting the L/C number. The tenor is in conformity with that stipulated in the L/C. The amount is identical with the amount mentioned in terms of the credit.

Bill of Lading (B/L)

The full set of B/L is submitted including original copy. It is marked “Shipped on Board” It is drawn in favor of the bank endorsed to the order off the bank and dated after issuance of the L/C The B/L is clean If the terms of sale is C& F, B/L is to be marked “Freight Prepaid”. Short from B/L is not acceptable Charter party B/L is not allowed unless specified in the L/C B/L is not stale Other (if any) as per L/C terms.

Commercial invoice

The invoice is signed by the exporter / beneficiary The required numbers of copies of the invoice are placed as per L/C terms. Description of the goods with measurement / weight is mentioned in full. The value and price of the goods to be tallied with L/C terms The L/C number, name of the ship with shipping mark, shipments date L.C.A.F/ license numbers of the importer, indent number etc. are to be quoted in the invoice properly. The quality and quantity of the goods as mentioned in the invoice must agree with that of L/C terms. The name of the importer and the L/C issuing bank is mentioned in the invoice.

Certificate of origin

The certificate of origin may be issued by the chamber of commerce & Industry of exporter’s locality or by the supplier as stipulated in the L/C. The goods must be originated from the country as per indication given in the L/C.

Inspection Certificate

The certificate must comply with the inspection requirements of the Documentary Credit. It contains no detrimental statement as to the goods, specifications, quality, packing etc. unless authorized by the documentary credit.

Packing List

A detailed packing list requires a listing of the contents of each package, carton, etc. and other relevant information. It corresponds with the requirements of the Documentary Credit.

Insurance Document

It is the policy/ certificate/declaration under cover note, as required by the Documentary Credit. It covers the specified risks as stated in the Documentary Credit and that the risks are clearly defined.

CHAPTER THREE: LEGAL AND REGULATORY FRAMEWORK OF LETTER OF CREDIT

Domestic Regulations/ Guidelines/ Policies

ICC guidelines are not complete set of rules in regulating and guiding international trade payment transactions. Since the payment guidelines do not provide for comprehensive and complete rules for international trade payment transactions, national laws play an important role. This is particularly true for the issues that are not addressed by the UCP intentionally. For example the legal nature of the credit itself and legal nature of the relationship between different parties have not be addressed in the UCP. For effective international trade payment operation, it is required that national laws be capable of providing solutions to any issues of international trade payment procedure open to interpretation.

In Bangladesh, Foreign Exchange Regulation Act, 1947 [FERA, 1947] is the most important domestic regulation in the area if international banking. FERA, 1947 has empowered Bangladesh Bank to regulate all kinds of foreign exchange dealings in Bangladesh. Empowered by the act, Bangladesh Bank issues Authorized Dealers licenses to the selected bank branches for conducting trade payments and other international banking operation. Following the provisions of the act, Bangladesh Bank issues circulars/ guidelines time to time to regulate trade payment and international banking activities to be followed by the banks.

While dealing in international trade payment, other than FERA, 1947 and Bangladesh Bank circulars/ Guidelines, bank are required to follow trade policies issued form the Ministry of Commerce of the country empowered by Import and Exports { Control } Act, 1950. The export and import policies specifically prescribe the policies/ rules of the government in regard to the export and import transactions and procedure and operation of making and receiving trade payment. Importer, exporters and indenters are required to be registered in Bangladesh under Importers, Exporters and Indenters Registration Order 1981. Moreover, Customs Act 1969 is also applicable to trade transactions that deal with levy and collection of customs duties and other allied matters.

The prime objective of the trade policy of Bangladesh is to maintain a favorable balance of trade through adopting an export led development strategy, focusing on expansion and diversification export, ensuring availability of imported raw materials for expanding export oriented industries and increasing share of the country in global trade. Bangladesh has been able to open up its economy substantially through undertaking trade liberalization measures since 1980s. However, GOB has taken into consideration the sensitive areas like public health, security and religious bindings, while pursuing trade liberalization measures. Simultaneously, more liberal import and export policies and programs have been adopted including reduction of tariff slabs.

Bangladesh pursued one year export and import policies in the first half of eighties and two year policies in the first half of eighties and first half of the nineties. Five year export-import policies (1997-2002) were formulated and implemented during 1997-2002. After that, GOB pursued three year export-import policies during 2003-2006. The current import and export policies (2006-2009) have been made effective from May 14 and 31, 2007 respectively.

The new Import Policy Order, 2006-2009, has been formulated, keeping in mind the market economy ideology, to make available the commodities to the consumers at fair prices through removing the barriers to movement of goods inter nationally, to ensure availability of quality and health compliant goods, to create a congenial environment for Foreign Direct Investment through expansion and growth of export oriented industries, expansion and consolidation of domestic industrial base so as to make Bangladesh economy active and vibrant. At this moment the number of commodities kept under restricted list is only 25. The new import policy has allowed opening of LC for importing capital machinery even without IRC. The limit of import without LC has raised from $5000 to $ 35000. For enhancing easy availability of industrial raw materials and consumer goods at fair prices, some commodities have been declared importable as raw materials.

In order to sustain the level of exports of Bangladesh, productive capacity of domestic export oriented industries should be increased along with ensuring quality of exportable products and its market diversification. For this reason, all efforts should be taken for converting our comparative advantage of human resources to competitive advantage. The Export Policy of 2006-2009 has considered agro-products, light engineering products, leathers goods, pharmaceuticals commodities, ICT products and home textiles as the thrust sectors of our export development. In addition, finished leather, frozen fish foods, cottage industry products, electronic products, fresh flower etc. have been considered as special development sectors in the current export policy. The current export policy has accommodated fiscal, financial and general policies/incentives in line with requirements of globalization, with a view to facing the challenges of post-MFA and increasing the competitive capacities of all domestic stakeholders. Bangladesh has adopted a number of projects under technical assistance of donors for enhancing the quality of exportable products, new market exploration, offering new products to world markets according to market demand. GOB has also taken a lot of measures such as simplification of disposal of goods, waiver of utility bills, loan rescheduling, cash incentives, tariff-free import etc. for development of Ready Made Garments and Textile sector. One of the important aspects of export strategy of Bangladesh is to put equal emphasis on both bilateral and regional trade. Bangladesh is playing an active role in a number of regional trading blocs including SAFTA.

Foreign Exchange Regulation Act, 1947 was adapted in Bangladesh immediately after the independence. However a few provisions have been added under the foreign exchange regulation (Amendment) ordinance, 1976. Actually this Act empowered Bangladesh Bank to regulate certain payments, dealings in foreign exchange and securities and the import and export of currency. Foreign Exchange Regulation Act 1947 was basically passed on 11th March in the year 1947. After 1947, the act was adopted by Pakistan. And after 1971, Bangladesh adopted the same act. The act has 27 sections and a number of sub sections. The major section related with the international trade payment and foreign exchange are depicted below :

Authorized dealers in foreign exchange

(1) The Bangladesh Bank may, on application made to it in this behalf, authorize any person to deal in foreign exchange.

(2) An authorization under this section­

(i) May authorize dealings in all foreign currencies or may be restricted to authorizing dealings in specified foreign currencies only;

(ii) May authorize transactions of all descriptions in foreign currencies or may be restricted to authorizing specified transactions only;

(iii) May be granted to be effective for a specified period, or within specified amounts, and may in all cases be revoked for reasons appearing to it sufficient by the Bangladesh Bank.

(3) An authorized dealer shall in all his dealings, in foreign exchange comply with such general or special directions or instructions as the Bangladesh Bank may from time to time think fit to give, and, except with the previous permission of the Bangladesh Bank an authorized dealer shall not engage in any transaction involving any foreign exchange which is not in conformity with the terms of his authorization under this section.

(4) An authorized dealer shall, before undertaking any transaction in foreign exchange on behalf of any person, require that person to make such declarations and to give such information as will reasonably satisfy him that the transaction will not involve, and is not designed for the purpose of, any contravention or evasion of the provisions of this Act or of any rules, directions or orders made there under and where the said person refuses to comply with any such requirement or makes only unsatisfactory compliance therewith, the authorized dealer shall refuse to undertake the transaction and shall, if he has reason to believe that any such contravention or evasion as aforesaid is contemplated by the person, report the matter to the Bangladesh Bank.

Restrictions on dealing in foreign exchange:

(1) Except with the previous general or special permission of the Bangladesh Bank, no person other than an authorized dealer shall in Bangladesh and no person resident in Bangladesh other than an authorized dealer shall outside Bangladesh, buy or borrow from, or sell or lend to, or exchange with, any person not being an authorized dealer, any foreign exchange.

(2) Except with the previous general or special permission of the Bangladesh Bank, no person whether an authorized dealer or otherwise, shall enter into any transaction which provides for the conversion of Bangladesh currency into foreign currency or foreign currency into Bangladesh currency at rates of exchange other than the rates for the time being authorized by the Bangladesh Bank.

(3) Where any foreign exchange is acquired by any person other than an authorised dealer for any particular purpose, or where any person has been permitted conditionally to acquire foreign exchange, the said person shall not use the foreign exchange so acquired otherwise than for that purpose or, as the case may be, fail to comply with any condition to which the permission granted to him is subject, and where any foreign exchange so acquired cannot be so used or, as the case may be, the conditions cannot be complied with, the said person shall without delay sell the foreign exchange to an authorised dealer.

(4) Nothing in this section shall be deemed to prevent a person from buying from any post office, in accordance with any law or rules made there under for the time being in force, any foreign exchange in the form of postal orders or money orders.

Restrictions on payments:

(1) Save as may be provided in and in accordance with any general or special exemption from the provisions of this sub‑section which may be granted conditionally or unconditionally by the Bangladesh Bank, no person in or resident in Bangladesh shall‑­

(a) make any payment to or for the credit of any person resident outside Bangladesh;

(b) Draw, issue or negotiate any bill or exchange or promissory note or acknowledge any debt, so that a right (whether actual or contingent) to receive a payment is created or transferred in favour of any person resident outside Bangladesh;

(c) make any payment to or for the credit of any person by order or on behalf of any person resident outside Bangladesh;

(d) place any sum to the credit of any person resident outside Bangladesh;

(e) make any payment to or for the credit of any person as consideration for or in association with­¾

(i) the receipt by any person of a payment or the acquisition by any person of property outside Bangladesh;

(ii) the creation or transfer in favour of any person of a right whether actual or contingent to receive a payment or acquire property outside Bangladesh;

(f) draw, issue or negotiate any bill of exchange or promissory note transfer any security or acknowledge any debt, so that a right (whether actual or contingent) to receive a payment is created or transferred in favour of any person as consideration for or in association with any matter referred to in clause (e).

(2) Nothing in sub‑section (1) shall render unlawful­¾

(a) the making of any payment already authorised either with foreign exchange obtained from an authorised dealer under section 4 or with foreign exchange retained by a person in pursuance of an authorisation granted by the Bangladesh Bank;

(b) the making of any payment with foreign exchange received by way of salary or payment for services not arising from business in, or anything done while in Bangladesh.

(3) Nothing in this section shall restrict the doing by any person of anything within the scope of any authorisation or exemption granted under this Act.

(4) For the purposes of this section “security” also includes coupons or warrants representing dividends or interest and life or endowment insurance policies.

(1) Where an exemption from the provisions of section 5 is granted by the Bangladesh Bank in respect of payment of any sum to any person resident outside Bangladesh and the exemption is made subject to the condition that the payment is made to a blocked account­

(a) the payment shall be made to a blocked account in tile name of that person in such manner as the Bangladesh Bank may by general or special order direct, and

(b) the crediting of that sum to that account shall, to the extent of the sum credited, be a good discharge to the person making tile payment.

(2) No sum standing at the credit of a blocked account shall be drawn on except in accordance with any general or special permission which may be granted conditionally or otherwise by the Bangladesh Bank.

Restrictions on import and export of certain currency and bullion.

(1) The Government may, by notification in the official Gazette, order that subject to such exemptions, if any, as may be contained in the notification, no person shall, except with the general or special permission of the Bangladesh Bank and on payment of the fee, if any, prescribed bring or send into Bangladesh any gold or silver or any currency notes or bank notes or coins whether Bangladesh or foreign.

Explanation: The bringing or sending into any part or place in the territories of Bangladesh of any such article as aforesaid, intended to be taken out of the territories of Bangladesh without being removed from the ship or conveyance in which it is being carried. Shall nonetheless be deemed to be bringing or as the case may be, sending, into the territories of Bangladesh of that article for the purposes of this section.

(2) No person shall, except with the general or special permission of the Bangladesh Bank or the written permission of a person authorised in this behalf by the Bangladesh Bank, take or send out of Bangladesh any gold, jewellery or precious stones, or Bangladesh currency notes, bank notes or coins or foreign exchange.

Guidelines for Foreign Exchange Transactions

Authorized Dealers (ADs) must deal only with known customers having a place of business in Bangladesh and can be traced easily should any occasion arise for this purpose. ADs may issue ‘Letter of Credit Authorization Form’ in conformity with the current IPO allowing imports into Bangladesh. ADs must not issue blank LCAF to the clients. LCAF remain valid for shipment of goods nine months subsequent to the month of issue. Therefore ADs should not make remittance against any LCAF after the expiry of the prescribed validity period without first obtaining revalidation of the LCAF. ADs must take all precautions to quote the correct ITC number (HS CODE) of the goods to be imported, in the LCAF and the LC. Because, failure to do so may lead to imposition of penalties by the Customs Authorities. When LCs are opened, full particulars thereof must be endorsed on the back of the exchange control copy of the LCAF under our stamp and signature. The Taka equivalent of the LC opened must be endorsed on the LCAF at the ruling BC selling rate. Before delivering the import documents to the importers, ADs must invariably endorse on the invoices accompanying the bill amount both in figures and words which have been remitted from Bangladesh. The endorsement should be under our stamp and signature. On expiry of an LC unutilized partly or wholly, or on cancellation or reversal of a sale of foreign exchange, the endorsements made on the back of the LCAF may be cancelled with appropriate remarks under our seal and signature. In case an endorsement is made mistakenly on a wrong LCAF, ADs may cancel the endorsement provided the endorsement is transferred simultaneously to the appropriate valid LCAF

The aggregate amount of foreign exchange sold against an LCAF whether under LC or otherwise, should not exceed the value mentioned in the LCAF. ADs may report to the Bangladesh Bank the remittance of normal bank charges as usual with TM form and necessary supporting documents. LCAFs can normally be utilized on CFR basis. Full LCAF value is therefore not remittable as FOB value of goods. As such freight charges payable on imports on FOB basis are to be adjusted against the relative LCAF value. In case of FOB imports we should endorse, beside FOB value, the freight payable in Taka as indicated in the Bill of Lading etc. In cases where miscellaneous charges i.e. handling charges, cartage/surface transportation, documentation charge etc., are required to be paid by the importers on arrival of goods through the Airlines, the ADs should also endorse on the Exchange Control copy of the LCAFs the amount of such charges as indicated in the Airway bill along with the freight in Bangladesh Taka. ADs should also give a certificate to Importers in the form given in Appendix 5/11 of Guidelines for foreign exchange transactions to the effect that the amount of freight, handling charges etc. have been endorsed on the relative LCAF. The issue of this certificate is essential as the shipping companies etc. are under instructions not to accept payment of freight in Taka unless the above mentioned certificate is produced to them. In cases where the FOB value and the amount of freight payable in Taka exceeds the value of the LCAF the application should be referred to the Bangladesh Bank for consideration with full particulars and supporting documentary evidence.

ADs should establish LCs against specific authorization only on behalf of our own customers who maintain accounts with us and are known to be participating in the trade. Payments in retirement of the bills drawn under LCs must be received by us by debit to the account of the concerned customer or by means of a crossed cheque drawn on the drawee’s other bankers.

· All LCs and similar undertaking covering imports into Bangladesh must be documentary LCs and should provide for payment to be made against full sets of on board (shipped) bills of landing, air consignment notes, railway receipts, post parcel receipts showing dispatch of goods covered by the Credit to a destination in Bangladesh. All LCs must specify submission of signed invoices and certificates of origin. If any particular LCAF require submission of any other document or the remittance of exchange at certain periodical intervals or in any other manner, the LC should incorporate those instructions of the LCAF. It is not permissible to open clean or revolving or packing credits. Applications for opening such LCs should be referred to the Bangladesh Bank with full particulars. It is not permissible to open import LCs in favor of beneficiaries in countries from which import into Bangladesh are banned by the competent authority. The ADs should, before opening an LC, see documentary evidence that a firm order for the goods to be imported has been placed and accepted. ADs should ensure while opening an LC that full description of the goods to be imported are given in each Credit along with the unit price of the merchandise. ADs may establish LC to make payment to the country of origin of goods or any other country except those countries import from which are prohibited. In case of import by post, we may make remittance without prior approval of the Bangladesh Bank only if the parcel is addressed directly to our Bank. ADs may allow remittance against discrepant documents/documents received directly by the importers after the goods have been cleared from the Customs, on the basis of the relative LCAF, the exchange control copy of the Customs Bill Of Entry for consumption or Customs Certified Invoice in the case of import by post, and the relative invoices. All application for payment for import should be made on IMP form by the importer and we have to endorse on the reverse of the IMP form in the space provided for us. In all cases of import, the importer must submit within 4 months from the dates of remittance the relevant Exchange Control Copy of the customs Bill of Entry. In case of import by post, the importer must submit the invoice certified by the Customs authorities in lieu of the exchange control copy of the bill of entry. ADs have to obtain the invoice in duplicate, both of which have to be certified by us as usual. After recording in the IMP form the particulars of the remittance effected, the original copy of the IMP form alongwith the copy of the certified invoice have to be forwarded to the Bangladesh Bank with the usual monthly returns. The duplicate copy of IMP form will be retained by ADs. Subsequently when the exchange control copy of the bill of entry/customs certified invoice is submitted by the importer, the particulars therein should be matched and checked with those in the IMP form and invoice filed earlier, to see if the merchandise for which remittance was made has been duly received in Bangladesh. If no material discrepancy is detected, the case should be considered closed, with the duplicate IMP form, invoice and custom bill of entry/custom certified invoice field together for eventual inspection and disposal instruction from inspection team from the Foreign Investment and Inspection Department of Bangladesh Bank.

Cases with material discrepancy between the particulars of merchandise for which remittance was made and the merchandise actually received as evidenced by the exchange control copy of bill of entry/customs certified invoice within four month of remittance should be reported to the area office of Bangladesh Bank quarterly, in proformas given at Appendices 5/14 and 5/15, by 15th day of the month following the quarters ended March, June, September and December. ADs should also follow up with the importers the cases material discrepancies and of non-submission of bills of entry/customs certified invoices within due time.

Uniform Customs and Practices for Documentary Credit (UCPDC 600)

Uniform Customs and Practices for Documentary Credit (UCPDC) is a set of rules formulated by International Chamber of Commerce (ICC) to apply to all transactions in Letters of Credit carried out by banks. The purpose of the rules is to bring about uniformity in the form of letter of credit and the practice and procedures adopted by banks in handling the instruments. In order to provide common understanding about the interpretation of the terms and terminology, a uniform code is very essential. These uniform customs and practice is universally accepted and letters of credit transactions everywhere are subject to this set of rules.

The UCPDC formulated by ICC is a set of rules but it has no force of law and should not be construed as law applicable to all cases, unless the parties to a transaction voluntarily agree to apply the codes. If a party to a credit by express reference wishes to exclude the applicability of uniform customs from the LC contract, it can do so and in such cases it is not bound by the uniform customs. Bank regulate their operations in respect of issuing, advising and confirming credits in accordance with this code and accept all obligations arising under that. In some countries, even courts of all have based their decisions regarding letters of credit on these rules. The rules have made uniform both the forms of letters of credit and all practices and procedures observed by banks in relation to them.

The ICC UCP does not have legislative force but today it is accepted by the world banking community as universal codification of best practice. Moreover, banks everywhere incorporate the UCP by reference into virtually every documentary credit and other letter of credit. It covers most practical aspects of credit operations including issuance, confirmation and payment, the nature and extent of bank undertakings and banking responsibilities, the requirements to be met by documents presented in credit operations, and rules applicable to transferable credit.

The UCP rules are creatures of contract that apply when the parties have voluntarily incorporated them. The LC application forms generally contain a statement to the effect that the credit will be subject to the UCP 600 which is considered legally to represent the parties’ willingness to submit interpretation of credit to the rules of the UCP. However, there is an arrangement between ICC authority and SWIFT authority according to which the LC advised through SWIFT or received through SWIFT is automatically within the framework of UCPDC. Even where the UCP is applicable, the provisions can not cover all cases, and national regulations and guidelines are required to cover the cases/areas.

The revision process of UCP 500 actively began in April 2003 at the International Chamber of Commerce, Paris, and the new revision i.e. UCPDC 600 [ 2007 revision ] was adopted in November 2006 and published for the global trade and banking communities for implementation from July 1 2007. The new version of UCP 600 are the result of more than three years of intensive work by the Banking Commission. The new version of UCP 600 has been reorganized and comprises 39 articles without having any sub-head in contrast to UCP500 that has 49 articles grouped under seven broad heads. UCP 600 represents improved clarity in terms of language

In general, the articles that are stated in future form in UCP 500 are restructured into present form in UCP 600. Important definitions of the UCP and all interpretive issues that are placed in scattered form under UCP 500 have been accumulated into two separate articles in the beginning of the draft version of UCP 600. The term ‘parties’ has been replaced by ‘banks’. The 2007 revision dropped the common phrase ‘unless otherwise expressly stipulated in the credit’ used in different articles of UCP 500.

The definition of letters of credit in UCP 600 is having in a new shape. Revocable letter of credit has been dropped out of the scope of the new UCP and L/C means irrevocable letter of credit or definite undertaking only. Dropping revocable LC out of the scope of UCP draft seems to be correct. The revocable LC violates the basic protective feature of letter of credit i.e., it cannot provide necessary protection to the beneficiary in connection with receiving payments.

The UCP 600 has brought in the concept of ‘Second Advising Bank’ in line with the practice in different countries. In addition to the normal responsibility of checking the authenticity of the credit, it enforces additional responsibility to the advising bank in connection with giving notification about acceptance and rejection of amendments. Remarkable changes have been made in the article number 14 on ‘Standard for Examination of Documents’ of the UCP 600; which deals with examination of documents. The maximum period allowed to examine the documents has been reduced to five banking days from seven banking days, and the term ‘reasonable time’ is removed in connection with time required for examination of documents. The text of the article 16 of UCP 600 in regard to discrepant documents, waiver and notice has been placed in modified from in the new version of UCP. The article comes out explicitly with the contents of the refusal notice that was absent in UCP 500. Notice of refusal must be given by telecommunication or if that is not possible, by other expeditious means and it must be given not later than the close of fifth banking day following the day of presentation.

The UCP 600 offers shift in the procedure of determining shipment date in case of a few transport documents in certain scenarios. A major change has been made in connection with determining shipment date in case of ‘Marine Bill of lading’ at the presence of both pre-printed wordings and on-board notation on the bill of lading. In contrast to the UCP 500, in such a scenario, the date of on- board notation is to be considered as shipment date. In regard to determining the date of shipment of the air transport document, in the presence of a notation of actual date of shipment, the date would be the shipment date if no such indication calls for in the credit.

UCP 600 has 39 articles which clearly states different aspects of international trade payment under letter of credit method. Article 1 states about the application of UCP as:

“The Uniform Customs and Practice for Documentary Credit, 2007 Revision, ICC Publication No. 600 are rules that apply to any documentary credit (including, to the extent to which they may be applicable, any standby letter of credit) when the text of the credit expressly indicates that it is subject to these rules. They are binding on all parties thereto unless expressly modified or excluded by the credit.”

Article 2 and 3 provide the definitions and interpretations of various parties and key terms under letter of credit. Credits v. Contracts has been indicated in Article 4 where it has been stated that

“A Credit by it’s nature is a separate transaction from the sale or other contract on which it may be based. Banks are in no way concerned with o bound by such contract, even if any reference whatsoever to it is included in the credit. Consequently, the undertaking of a bank to honour, to negotiate or to fulfill any other obligation under the credit is not subject to claims or defences by the applicant resulting from it’s relationships with the issuing bank or the beneficiary.”

Article 7 and 8 clearly state the undertaking of issuing and confirming bank whereas article 9 and 10 provide a guideline regarding advising of credits and its amendments. One of the very important aspects of international trade payment under LC method is the matter of bank to bank reimbursement which has been stated in article 13 where it is inscribed that:

“If a credit states that reimbursement is to be obtained by a nominated bank (claiming bank) claiming on another party (reimbursing bank)the credit must state if the reimbursement is subject to the ICC rules for bank to bank reimbursement in effect on the date of issuance of the credit.”

A very significant aspect of UCPDC 600 is its article 14 where ‘standard for examination of documents’ has been extensively stated. At the inception of the article it has been said that “A nominated bank acting on its nomination, a confirming bank, if any, and the issuing bank must examine a presentation to determine, on the basis of the documents alone, whether or not the documents appear on their face to constitute a complying presentation.”

Article 16 has said about discrepant documents, their waiver and notice which very astutely states “When a nominated bank acting on its nomination, a confirming bank, if any, or the issuing bank determines that a presentation does not comply, it may refuse to honour or negotiate.”

From article 18 to 28 the matter of various documents has been discussed. Among the required documents commercial invoice, transport documents, bill of lading, insurance documents are important. The rest articles emphasize on Extensions of expiry date or last day of presentation, Tolerance in credit amount, quantity and unit prices, Partial drawings or shipments, Installment drawings or shipments, Hours of presentation, Disclaimer on effectiveness of documents, Disclaimer on Transmission and Translation, Force Majeure, Disclaimer for acts of an instructed party, Transferable credits and Assignment of proceeds. All these articles provide necessary guidelines for international trade.

Uniform Rules for Bank to Bank Reimbursement [ URR 525]

The Uniform rules from Bank to Bank reimbursements [URR], ICC publication no 725 deals with bank-to-Bank reimbursements arrangement. This arrangement involves a third bank in the process of documentary credit in making reimbursement to the claiming bank. As the third bank is not a party to the credit, the relationship between issuing bank and reimbursing bank is not within the framework of UCPDC. In UCP, the first specific reference to reimbursement from a third bank was contained in UCP 290 [ article 13] 1974 revision. The current revision of UCP 600 refers about the arrangement. With the implementation of URR 725, the documentary credit arrangement for the first time got a set of international rules on bank-to- bank reimbursement arrangement. To get coverage under URR, banks are to incorporate in their reimbursement instructions that the reimbursements are subject to URR publication no – 525.

Incoterms 2000

In the trade operation, the ownership and risk in the movement of goods from seller to buyer are usually linked to transport operation. It is vital for the exporter and the importer to determine with precision, matters such as which party arranges and pays for the carriage of the goods, who takes out the cargo insurance, whether the goods travel at the risk of the seller or the buyer and who affects custom clearance. Over the years, traders operating internationally evolved standard definitions known as trade terms covering the main alternative arrangements that buyers and sellers may make with regard to shipment of the goods. The current ICC version of trade terms is known as ‘Incoterms-2000’ that includes 13 items placed under four groups : E Group (Departure), F Group (main carriage unpaid), C Group (Main carriage paid) and D Group (Arrival). E Group includes EXW or Ex works. “Ex works” means that the seller delivers when he places the goods at the disposal of the buyer at seller’s premises or another name place not cleared for export and not loaded on any collecting vehicle. The F terms (FCA- Free Carrier, FAS- Free Alongside Ship, FOB- Free on Board) require the seller to deliver the goods for carriage as instructed by the buyer. The C terms (CFR- Cost and Freight, CIF- Cost, Insurance and Freight, CPT- Carriage Paid to, CIP- Carriage and Insurance paid to) require the seller to contract for carriage at his own expense. According to the D terms (DAF- Delivered At Frontier, DES- Delivered Ex Ship, DEQ- Delivered Ex Quay, DDU- delivered Duty Unpaid, DDP- Delivered Duty Paid); the sellers are responsible for the arrival of the goods at the agreed place or point of destination at the border or within the country of import.

International standard Banking Practice (ISBP)- A Practical Complement of UCP600 ISBP is acronym for International Standard Banking Practice for the Examination of Documents under Documentary Credits. It is widely acclaimed by letter of credit practitioners worldwide. It provides an intelligent checklist of items; document checkers can refer to in determine how ICC’s rules on documentary credits known as UCP600 apply in daily practice. It fills a needed gap in the market between the general principles in the UCP and the daily job of practitioners. It is not the substitute for the UCP, but it demonstrates how the UCP is to be integrated into everyday practice.

UCP600 incorporates international standard banking practice, which includes the practices described in it. ISBP covers the terms commonly seen on a day-to-day basis and the documents most often presented under documentary credit. It also explains how the practices articulated in UCP600 are applied by documentary practitioners. The ISBP and the UCP600 should be read in their entirely and not in isolation in order to avoid ambiguity.

In the latest version of ISBP there are explicit guidance on how to deal with documents covering at least two modes of transport (UCP600, Article19), insurance documents and coverage (UCP600, Article 28); transferable credits (UCP600, Article 38 ) and a broad range of other issues. However, the incorporation of ISBP into the terms of a documentary credit is being discouraged.

ISBP at a glance

The latest revision of ISBP is composed of 185 articles under 11 broad categories. Articles 1-5 articulate the limitation of incorporating terms in the documentary credit and encourages the applicants’ acquaintance with some articles of UCP600 Articles 6-42 provide guidelines and interpretations explicitly those are not articulated in UCP600 to determine that the documents fulfilled required terms and conditions of the credit. Articles 43-56 constitute composite guidance in respect of making endorsing and determining payment date of drafts under documentary credits. Articles 57-67 indicates contents including different issues related to invoices and also clarify tolerance in amount and quantity. Articles 68-90 form a set of directives in relation to multimodal or combined transport documents. Articles 91-114 constitute a set of directives in relation to bill of lading. Articles 115-133 constitute a set of directives in relation to charter party bill of lading Articles 134-156 constitute a set of directives in relation to air transport documents Articles 157-169 constitute a set of directives in relation to road, rail or inland waterway transport documents. Articles 170-180 constitute a set of directives in relation to insurance documents and coverage. Articles 181-185 provide guidance in relation to issuance and particulars of certificate of origin.

CHAPTER FOUR: LETTER OF CREDIT OPERATION IN BANGLADESH

Import Procedure One of the important functions of the commercial banks in the world is to undertake import of merchandise into the country and payment of foreign exchange towards the cost of the merchandise to foreign suppliers. In almost all the countries of the world there is import trade control in one form or the other which supervises the import into the country and controls certain items of exports depending upon national exigencies. The main object of the import trade control is to conserve the scarce foreign exchange resources of the country with a view to meeting the needs of development of its expanding economy. In Bangladesh, the import of goods is regulated by the Ministry of Commerce in terms of the Import and Export (Control) act, 1950; with Import Policy Orders, and Public Notices issued from time to time by the Chief Controller of Imports and Exports (C.C.I.& E), while payments for these imports are regulated by Central Bank, i.e. Bangladesh Bank, through its Exchange Control Department.

According to the Imports and Exports Act, 1950 as adopted in Bangladesh, any one willing to carry import business needs registration with the licensing authority, i.e., Chief Controller of Imports Exports and its offices at the important trade centers of the country.

The following documents are required to be submitted to the licensing authority for registration as importers.

i) Questionnaire form duly filled in and signed

ii) Income tax registration certificate

iii) Trade License from the Municipal or Local Authority

iv) Bank certificate

v) Nationality certificate

vi) Partnership Deed where applicable

vii) Certificate of Registration with the Register of Joint Stock Companies and Memorandum and Articles of Association in case of Private and Public Limited Company.

viii) Certificate from the Chamber of Commerce / registered Trade Association

ix) Ownership documents or rent receipts of the place of business

x) Any other documents required under the relevant import policy

On receipt of the application along with relative documents, the Chief Controller of Imports and Exports and its regional offices scrutinizes the documents and conducts physical verification (if considered necessary) and on being satisfied, requests the applicant to pay fees towards registration through treasury challan.

After submission of the above documents and payment of requisite fees, if the documents are found in order and the C.C.I & E is satisfied, the Import Registration Certificate (IRC) is issued to the applicant-importer.

The IRC is a security document issued under embossing seal and duly signed by authorized officials of C.C.I & E and to be kept safe custody. The IRC is required to be renewed every year on payment of usual fees.

Import in Bangladesh can take place in two ways

(1) By way of opening L/C

(2) Without opening L/C.

(I) Import by way of opening L/C requires fulfilling following criteria of private sector importer;

a) Registered importer having valid IRC

b) Trade license (valid)

c) Membership certificate from local chamber of commerce of related association (valid).

d) Income tax clearance/ declaration in case of new comer.

e) VAT registration certificate.

If a private sector importer fulfils above requirements, a banker can process an L/C for import of goods & services from abroad but following papers/documents are to be obtained before opening of LC in addition it the above mentioned papers/documents:

  1. L/C application.

  2. Indent / Performa invoice / purchase order / contract / agreement.

  3. Charge documents duly & properly executed.

  4. Letter of Credit Authorization Form (LCAF) duly sealed & signed.

  5. Insurance cover note

The importer must be a customer of the L/C issuing bank / branch & the L/C may be opened after sanction by the competent authority.

Liability vouchers

Debit- Customer’s Liability for L/C

Credit- Banker’s Liability for L/C

Other vouchers

Debit- Party’s account

Credit- Marginal Deposit

Credit- Commission

Credit- Postage

Credit- Vat

Credit – Other Charges

(2) Import into Bangladesh without opening L/C may be made in the following cases against LCAF:

a) Books, journals, magazines, periodicals against sight draft or usance bills. Any importable item by making payment from Bangladesh to the tune of maximum USD. 2500/ -in a year

b) The items allowed by the credit, Loan, Grant.

c) International chemical reference by registered allopathic industrial unit with the approval of Director, Drug Administration.

Scrutiny of Documents The letter of credit constitutes one of the most important methods of financing trade. Under a banker’s letter of credit, the issuing bank gives a undertaking on behalf of the buyer that the bank will honor the obligation of payment on presentation of stipulated documents. Thus letter of credit provides security if the beneficiary observes its terms and conditions. The beneficiary of the documentary letter of credit when presents the stipulated documents to the negotiating bank, he expects the bank to honor its obligation under the credit in return. The negotiating bank scrutinizes the document in strict accordance with the L/C terms and negotiates the bill if the documents are in order. After negotiation, the bank claims reimbursement as per L/C terms. The L/C issuing bank / draw bank, after receiving of the above documents, scrutinizes all the documents before lodgment of the same in their books / registers.

After completion of careful scrutiny of the documents steps should be taken to lodge the documents. If minor discrepancies are detected, acceptance/nonacceptance in writing from the party concerned should be obtained. While writing letter to the party the discrepancies should be pointed out specifically.

Steps for Lodgment

Following steps are maintained for lodge the documents.

Intimation is given to the party in time Conversion of foreign currency in to Bangladesh currency. Entry in to PAD register, along with PAD number Entry in to L/C opening register by rounding the L/C no with date Relative LCAF is to be endorsed showing the utilization of credit amount. The utilized amount also to be noted in L/C file. IMP forms duly signed by the importer are to be filled in. Passing of vouchers a) Reversal of contra liability vouchers

Debit- Bankers Liability for L/C

Credit- Customer’s Liability for L/C

b) Lodgement voucher i.e.,

Debit PAD(Payment Against Document) (At BC selling rate)

Credit ID, Head Office (name of Foreign bank, T.T/OD rate)

Credit I/A Exchange Earnings (Difference amount)

Retirement of Documents

After the arrival of goods in the port the party comes to retire the documents. Then the following entry is passed.

Calculation of Interest Determination of other Charges Passing of Vouchers: Dr. Party’s A!C

Dr. Marginal Deposit A/C

Cr. PAD

Cr. Interest A!C; Interest and other charges

Entry into the register After retirement, document along with custom purpose copy of LCAF to be delivered to the importer giving following endorsement: a) Draft/Bill of Exchange is to be endorsed as “Receive payment”

b) The invoice value is to be certified as “certified (the amount-Foreign Currency) converted @ …………. Dated………………Tk…………

The Bill of Lading / Transport document is to be endorsed for taking delivering of goods as “Please deliver to ………………. Or to the order of M/S………….”.

Interest is calculated on be amount from the date of reimbursement to the date of retirement. If the margin is kept with the bank a minimum 30 days, then interest is paid to the party at the savings rate and following vouchers are passed.

Dr. Expense control A!C Interest paid on margin L/C cash.

Cr. Party’s A!C.

Original documents are handed over to the importer after proper endorsement along with original LCA. The importer clears the goods on showing all these documents. The customs authority gives a bill of entry as a document of entering the importer goods in the country. The importer surrenders this bill of entry to the bank and forwards the bill of entry to Bangladesh bank along with the duplicate of IMP from.

Import Financing

Banks are playing a very important role in financing foreign trade of a country. Basic task in case of foreign trade is the same as in the home trade, i.e., to receive payments from the buyers and to make payments to the sellers. In our country import financing is made by the way of Payment Against Documents (PAD), Loan Against Imported Merchandise (LIM), Loan Against Trust Receipt (LTR).

Payment Against Documents (PAD)

When an import bill is received under a letter of credit, issuing bank carefully examine the documents as these are in accordance with the terms of the letter of credit. If the documents received in order, the bank lodge the shipping documents in their book and the debit entry originated there against by the negotiating bank / reimbursement bank is responded to the debit of advance portfolio “Payment Against Documents” or “Bill of Exchange” as the case may be and intimation is sent to the importer asking him to retire the import bills immediately. Thus, liability under the letter of credit is converted to bank’s advance. It is a practice that allows the importer to retire the documents until ship carrying the goods arrives. Normally, outstanding under “PAD” should not take more than 21 days for adjustment. When the importer retires the bill, the transaction ends there.

Loan Against Imported Merchandise (LIM) When the importer requests the bank for clearance of goods or the importer fails to retire the documents on payment, the liabilities under PAD or Bill of Exchange are converted to LIM account and the overdue interest from the date of accompanying Bill of Exchange or negotiation date to the date of transfer to LIM account is charged and incorporated to LIM. The advance against merchandise account is a loan account and only amounts for clearance charges, such as, custom duty, sales tax or VAT etc are allowed to be debited to the LIM account. A definite repayment schedule is also given to the importer to take delivery of the goods from bank’s custody against payment. Usually this loan is granted for 90 days within which importer should repay the loan and take delivery of the goods.

Loan Against Trust Receipt (LTR)

Letter of Trust Receipt is a document duly stamped and signed in bank’s prescribed format by the importer before getting delivery of the import shipping documents. In the Trust Receipt the importer specifies the goods and agrees that he is holding the goods not as their owner but as an agent for the bank until the goods are sold or used for the express purpose for which they were released to him. Thus, the bank continues to have the rights of the pledge. In getting such facility, the importer is to offer sufficient tangible securities acceptable to the bank equivalent to loan account.

Export Procedure

The general framework for control of exports is similar to that of imports but the objectives of import and export control are quite different. While import control is aimed at curbing imports to the extent possible, export control mainly aims at regulating the flow of foreign exchange into the country. Our Government always encourages exports to the extent possible so as to earn valuable foreign exchange for the country.

Any firms / parties desirous of undertaking export trade are required to obtain Export Registration Certificate (ERC) from the offices of the Chief Controller of Imports and Exports (C.C.I & E), Government of Bangladesh. No person is allowed to export any goods from Bangladesh to any other country without obtaining such a certificate. Authorised Dealer should, therefore, ensure before certifying any export form, as required that the person is so registered. The registration number should be quoted on the relative EXP form.

For the purpose of registration, an application in the prescribed form is required to be submitted to the C.C.I & E authority along with the following documents:

Nationality certificate from the local authority Trade License from the Municipal authority Bank certificate Income Tax certificate Registered partnership deed in case of Partnership concerns, memorandum and Articles of Association and Certificate of Incorporation in case of Limited Company. Copy of rent receipt of the business premises.

An exporter has to obtain a firm contract or an export L/C/Firm contract he has to make the goods ready and necessary arrangement for shipment particularly the following arrangements have to be done:

Booking of shipping space. Packing of the goods with shipping makes as per instruction of Export L/C/contract. Booking of space for storage of export cargo at the port of loading. Arrangement for transportation of goods to the port. Approaching bank (A.D) for issuing EXP. Whenever an exporter approaches the branch for issuing and certifying EXP. Branch is to satisfy that he maintains a CD A/c with the branch. He is a manufacturer, producers or supplier of the goods to be exported. Market reputation is satisfactory. Being satisfied following papers and documents are to be obtained: Application for the exporter. Valid export Registration certificate (ERC). Original copy of export L/C/Firm contract.

Examination of papers and documents by the branch i. Application:

Items are permissible for export. Arrangement made for realization of Export Proceeds within 4(Four) months. Arrangement has been made for receipt of title of the goods like Bill of Lading (B/L), Air Way Bill etc. ii. Export L/C:

Irrevocable / Confirmed L/C issued by an internationally reputed bank under UCPDC in force and transfer made (if transferable) as per provision of article 48 of ICC- 500. Genuineness of Advising or Transferring the L/C is to be verified. Time for shipment is sufficient. Negotiation authority is provided therein. Reimbursement clause is definite. B/L clause conforms to the provision of Guidelines for foreign Exchange Transactions. All other terms and conditions are favorable.

iii) Contract:

Contract is confirmed and duly signed by the seller and the purchaser. Buyer consignee is bonafide (Branch has to obtain credentials of the buyer through Foreign Correspondence). Full description of the goods to be exported with quantity, quality, price and unite price are given. Mode of transport with port of shipment and destination. Date of shipment. Delivery Term-FOB, CRE, CIF etc. mentioned clearly. Payment clause at Sight DC/ DP/ USANCE. Validity of the Contract. Being satisfied branch is to issue a set of EXP. Duly recorded in Export Register as per specification given in appendix in 5/65 of Guidelines For Foreign Exchange Transaction Volume-1 published by Bangladesh Bank. Exporter is to fill up and sign EXP. Under his seal. Branch is to check that all the copies EXP have correctly been filled in as per particulars of export L/C/contract. Signature of the export is to be verified and certify under seal and signature of the branch manager on the space provided.

Papers and documents are to be handed over to C& F Agent:

EXP duly signed by Export and certified by the bank. Copy of Export L/C Contract. Commercial invoice duly issued and signed by the exporter. Packing List. Insurance cover note in case of Export on CIF basis. From VBF-9 (Prescribed by Custom Authority for declaration of Export Cargo). Detail instructions regarding shipment: Date by which the goods should be put on board. Name of the bank in Bangladesh to whose order BL/air way duty Bill should be drawn. Number of original and non-negotiable B.L to be obtained. A proof of export from the Custom Authority for claiming duty draw back (wherever admissible).

C & F Agent has to arrange:

Booking of shipping space. Storage of Export Cargo at the port. Marking the shipping marks on each packet / container. Issue instruction to the carrier regarding the date by which goods are to be shipped on board and shipping documents to be issue with necessary clauses and number of copies to be supplied.

After shipment Exporter will submit the following documents to the branch:

All negotiable copies of B/L Commercial Invoice duly signed. Bill of Exchange. Consular invoice (If required). Packing list. Certificate of Origin.(If required). Pre-shipment inspection certificate (If required). GSP certificate (wherever necessary). Original copy of export L/C/Contract. EXP duly certified by the custom authority. Any other documents required as per export L/C Contract. Exporter is to submit the export documents under cover of a letter mentioning a number of documents submitted and detail instructions regarding payment and delivery of documents.

Branch is to verify that–

The number of the documents mentioned in the forwarding letter is found intact.

Instruction regarding payment and delivery of documents are in confirming with the terms and conditions of Export L/C contract.

i) Sight Documents are to be delivered against payment at sight of the draft.

ii) D.A Documents to be delivered against acceptance of the draft by the 1 drawee and documents are to presented on due date for payments.

iii) D-P-Documents are to be delivered against payment.

iv) All the documents required as per terms and conditions of L/C contract are

submitted.

Documents submitted are to be scrutinized and the discrepancies are to be noted on the scrutiny sheet. Exporter is to be informed of the discrepancies immediately. Export will rectify the discrepancies which are rectifiable by them.

Export Financing Financing of exports constitutes an important part of a bank’s activities. Exporters require financial services at different stages of their export operation. During each of these phase exporters need different types of financial assistance depending on the nature of the export contract. Export financing can be classified into two categories.

1) Pre-shipment credit

2) Post-shipment credit

Pre-shipment credit Pre-shipment credit, as the name suggests, given to finance the activities of an exporter prior to the actual shipment of goods for export. The purpose of such credit is to meet working capital needs starting from the point of purchasing of raw materials to transportation of goods for export to foreign country. Pre-shipment credit takes place the following forms:

1) Export Cash Credit (Hypothecation)

2) Export Cash Credit (Pledge)

3) Export Cash Credit against Trust Receipt

4) Packing Credit

5) Back to Back letter of credit

6) Credit against Red-Clause letter of credit

Export Cash Credit (Hypothecation) Under this arrangement a credit is sanctioned against hypothecation of the raw materials or finished goods intended for export. Such facility is allowed to the first class exporters. As the bank has got no security in this case, except charge documents and lien of export L/C or contract, bank normally insists on the exporter in furnishing collateral security. The letter of credit creates a charge against the merchandise in favor of the bank but neither the ownership nor the possession is passed to it.

Export Cash Credit (Pledge) Such credit facility is allowed against pledge of exportable goods or raw materials. In this case, cash credit facilities are extended against pledge of goods to be stored in the godown under bank’s control by signing letter of pledge and other pledge documents. The exporter surrenders the physical possession of the goods under bank’s effective control as security for payment of bank dues.

Export Cash Credit against Trust Receipt In this case, credit limit is sanctioned against Trust Receipt. The exportable goods remain in the custody of the exporter. He is required to execute a stamped export trust receipt in favor of the bank. This facility is allowed only to the first class party and aollateral security is generally obtained in this case.

Packing Credit In this cash credit, facilities are extended against security of Railway Receipt / Steamer Receipt / Barge Receipt / Truck Receipt evidencing transportation of goods to the port for shipment of the goods in addition to the usual charge documents and lien of export letter of credit. This type of credit is sanctioned for the transitional period from dispatch of the goods till negotiation of the export documents. The drawings under Export cash credit (Hypothecation/Pledge) limit are generally adjusted by drawings in packing credit limit which in turn, liquidated by negotiation of export documents.

Back to Back Letter of Credit Under this arrangement, the bank finances export by opening a letter of credit on behalf of the exporter who has received a letter of credit from the overseas buyer. Since the second letter of credit is opened on the strength of and backed by another letter of credit it is called Back to Back Letter of credit. The need for a back to back letter of credit arise because the beneficiary of the original (export) letter of credit may have to procure the goods from the actual producer who may not supply the goods unless its payment is guaranteed by the bank in the form of letter of credit. The bank’s credit related to back to back letter of credit is realized subsequently from export proceeds.

Credit against Red-Clause letter of credit Under Red clause letter of credit, the opening bank authorizes the advising bank/Negotiating bank to make advance to the beneficiary prior to shipment to enable him to procure and store the exportable goods in anticipation of his effecting the shipment and submitting a bill under the L/C. as the clause containing such authority is printed /typed in red ink the L/C is called Red clause and Green Clause L/C respectively. Though it is not prohibited, it is very rare in Bangladesh.

Post-shipment credit

This type of credit facilities extended to the exporters by the banks after shipment of the goods against export documents. Necessity for such credit arises as the exporter can not afford to wait for a long time for without paying manufacturers / suppliers. Banks in our country extend post-shipment credit to the exporters through:

  1. - Negotiation of documents under L/C
  2. - Purchase of DP and DA bill’s
  1. - Advance against Export Bills surrendered for collection

Negotiation of documents under L/C Under this arrangement, after the goods are shipped, the exporter submits the concerned documents to the negotiating bank for negotiation. The documents should be negotiated strictly in accordance with the terms and conditions and within the period mentioned in the letter of credit. If the documents are found complying the terms and conditions of L/C, the bank may purchase/discount the drafts/documents.

Purchase of DP and DA bill’s In such case, the banks purchase/discount the DP (Documents against Payment) and DA (Documents against Acceptance) bills operated under the payment method of documentary collection. While doing so, the banks scrutinize all the export documents separately and minutely. Clear instructions is to be obtained from the drawer of the bill in regard to all important issues related to the negotiation of the bills.

Advance against Export Bills surrendered for collection Banks generally accept export bills for collection of proceeds when they are not drawn under a L/C or when the documents, even though drawn against an L/C contains some discrepancies. Bills drawn under L/C, without any discrepancy in the documents, are generally negotiated by the bank and the exporter gets the money from the bank immediately. However, if the bill is not eligible for negotiation, the exporter may obtain advance from the bank against the security of export bills. In addition to the export bills, banks usually ask for collateral security like a guarantee by a third party and equitable / registered mortgage of property.

Payment Methods used in Foreign Exchange Transactions in Bangladesh Like most other countries in the world, in Bangladesh, Documentary Letter of Credit is the most popular and widely used for making import and export payment settlement. In more than 80% cases documentary letter of credit is used to make import payments. In a very few cases and in some cases of export proceeds realization, especially in exporter’s retention quota accounts, Cash in Advance method is used to import accessories.

It is found in a survey that in more than 65% cases L/C method is used for getting export proceeds whereas only in 30% cases Documentary Collection is used. Although Cash in Advance method is used to some extent, Open Account is completely absent. According to Choudhury and Habib (2006), this absence may be due to the superior bargaining power of the foreign exporters and the lack of credibility of our importers and the greater use of L/C in Bangladesh as main method of payment. Moreover, another discouraging factor is the existence of Bangladesh Bank’s requirement that export receipts must enter into the country within a period of 4 months from the date of export, failing of which, the exporter as well as the AD and it’s officials certifying the export forms becomes liable to punitive action under FER Act.

Table 4.1: Methods of Payment used in Making and Getting Payment

Methods used Import Payment(no of cases) Export Payment(no of cases) Documentary credit 84% 67% Documentary Collection 14.5% 29% Cash in Advance 1.5% 4% Open Account 0 0

Source: Based on data collected from sampled banks

Formalities and Margin Requirement while Opening L/C Unless otherwise specified, no import License will be necessary for import of any item in Bangladesh. However, registration to the Authorised Dealer is a requirement to import into the country. Other than filling up L/C application form, submission of the copy of proforma invoice and insurance cover note along with LCAF to the bank is a regulatory requirement. Issuing Bank has an agreement with the applicant while opening a Letter of Credit on his or her behalf.

Before 2003, there were some restrictions by the Ministry of Commerce on LC margin in some specific items. However, this restriction of margin requirement becomes open from the year 2003 and now this LC margin is determined/negotiated by the relationship between the AD and the LC applicant.

Forms of L/C in Use In Bangladesh, all letter of credits opened and received are irrevocable in nature as required by the domestic regulation of the country as well as UCPDC 600. Considering LC establishment about 42% out of the total credits are Deferred Payment Back-to-Back in nature due to the garments sector import raw materials to meet up their export orders. Whereas only about 3% LCs are Confirmed and 55% are Irrevocable at sight L/C. Even though Revolving LCs are rare, there is not a single case of Red Clause LC as there are some restrictions imposed by the Central Bank i.e. Bangladesh Bank.

On the other hand in cases of Export LCs about 72% is transferable in nature due to the existence of a large number of Buying Houses as they require to transfer the LCs to the manufacturers. Moreover the practices of subcontracting by the garments manufacturers are also very common for which LC is transferred. In contrast to import LC, back-to-back letter of credit is completely absent in case of export LC. Very insignificantly (only 1%) Bangladeshi exporters receive confirmed LC.

Table 4.2: Forms of LC opened and received

Forms Import LC Export LC Irrevocable 55% 27% Confirmed 3% 1% Back-to-Back 42% 0 Transferable 0 72% Red Clause 0 0

Source: Based on data collected from sampled banks

Documents Called for by a Credit

For Import L/C, issuing bank asks for

a) Bill of Exchange or Draft

b) Transport Documents like Bill of Lading, Airway Bill, Truck Receipt etc.

c) Commercial Invoice

d) Certificate of Origin and

e) Others as required by Bangladesh Bank Guideline or Import Policy Order (IPO).

Even though transport documents (title documents), commercial invoice (sellers bill) and insurance documents are essential as per UCP 600, insurance documents are rarely asked in Bangladesh. According to the country’s Import Policy Order, insurance is to be covered through domestic Insurance companies. Therefore, there will be no CIF LC in our country.

Submission of signed commercial invoice is another regulatory requirement. Under UCP 600, commercial invoice needs not to be signed. But as per BB Guidelines, all LCs must ask for submission of signed invoices. Submission of certificate of origin is a must in Bangladesh according to the Import Policy. Besides these, Packing List is another very frequently asked documents with Weight List, PSI certified Invoice, various Beneficiary’s Certificate are also asked less frequently or depending of case basis.

It is worth mentioning here that if the import is made from India through land customs, a Custom House Certified Invoice and/or Indian Application for Export Bills are asked with the original documents.

For Export L/C, exporters in our country are asked for the documents like

a) Bill of Exchange

b) Transport Documents

c) Commercial Invoices

d) Packing List and

e) Certificate of Origin.

It has been observed that insurance documents are less frequently asked in the export LCs. Weight list and PSI certificates are also asked but less frequently based of case to case basis.


Table 4.3: Documentary Requirements


Documents Asked Frequency for import LC Frequency for export LC
Transport Document All All
Commercial Invoice All All
Certificate of Origin All Very Frequently
Bill of Exchange Very Frequently Very Frequently
Packing List Very Frequently Very Frequently
Insurance Document Very Rarely Less Frequently
Weight List Less Frequently Less Frequently
PSI Certificate Less Frequently Less Frequently
Source: Based on data collected from sampled banks




Examination of Documents

In connection with examination of documents ‘Standard For Examination Of Documents’ reflected in the article 14 of UCP 600 is the guideline.

As any LC opened in our country has to comply with domestic regulations, guidelines on foreign exchange transactions along with FE circulars issued by Bangladesh Bank and the Import Policy Order and the Export Policy Order of the country are followed, these issues effect scrutinizing of import documents. However, it is to be remembered that whenever an LC is established only the ‘LC terms’ are ‘terms’ and only they are to be considered for examining a set of import documents.

As per article 14 of the UCP 600 any bank shall have a maximum of five banking days following the day of receiving of the document to determine if a presentation is complying. In some banks there is a practice of sending the discrepancy notices within 2-3 days after receiving the documents. Banks consider the act as a protective measure on their part. Charging of discrepancy fee appears to be another reason of such practice. Banks have been observed to approach to the importers to get their opinion before rejecting the documents. In regard to discrepancies, late shipment, late presentation, expiry of the L/C are very common.

Availability of Credit

A letter of credit must point out whether the credit is available at sight, deferred, acceptance or negotiation basis. The issuing bank is also required to mention that whether the payment will be made from the counter of the issuing bank or a nominated bank (negotiating bank). In most cases, LC issued from the country are freely negotiable which means any bank is negotiating or nominated bank at the counter of which documents are submitted by the foreign exporter or beneficiary. In such a case, exporter can submit documents at the counter of it’s bank in the country of his or domicile. In most cases (68%) payments are designated on negotiation basis from the counter of the nominated bank. Another 20% cases use acceptance basis payment and 12% deferred payment.

Charges and Commissions

Charges in documentary credit are much higher as compared to other forms of payment as involvement of banks is significant in this mode. At different stages of involvement, banks charge different rates of commissions as issuing bank, advising bank, negotiating bank, confirming bank, reimbursing bank etc. Commissions vary from bank to bank and in some cases also from client to client.

CHAPTER FIVE: OBSERVATION AND CONCLUSION

In Bangladesh, international trade and foreign exchange transactions are generally made through Letter of Credit. It is the most popular method out of many others described earlier for importing and exporting goods and for making and receiving payments to and from abroad. It is also notable that the Import and Export policy of the country and Foreign Exchange Guideline provided by the Central Bank are also encourage this Documentary Credit system. For example import without LC is restricted for upto $35000/per year and to some restricted items like books, journals etc. (Import Policy Order 2006-2009) and import against advanced payment is comparatively complex (Foreign Exchange Guideline Vol – 1).

From our above dissertation the following findings are worth noting:

1) Due to regulations and policies of the country, there are great differences in the documentary requirements of export and import LCs in Bangladesh. LCs issued from abroad i.e. export LC asks for fewer documents than the LCs issued from our country. However, both import and export LCs, submission of insurance documents are rarely asked for their requirement to be covered by domestic insurance companies.

2) As both Bangladeshi Importer and Exporters are dominated by the foreign suppliers and buyers respectively, imports are made on CNF basis and exports are made on FOB. Due to this our country losses a substantial amount of Foreign Currency.

3) About one third of the cases collection method is used in export transactions. However, in recent times, trend of the use of documentary collection is increasing both in export and import payment transactions. Though open account is widely used in trades among developed countries, its use in Bangladesh is completely absent. Absence or insignificant cases of use of cash in advance and open account might be attributed to the regulatory requirement of the country, relative bargaining power, reputation of the country’s traders and mutual trust and relationship of the domestic traders with their counterparts.

4) The beneficiary of an irrevocable documentary credit enjoys maximum protection against commercial risks since it is assured that the buyer’s bank will pay the value even if the buyer defaults to meet it’s payment obligation. If the credit is confirmed by a bank in the seller’s country, the seller also obtains protection against transfer risks since the confirming bank is obliged to pay even if the buyer’s bank is unable to transfer funds out of the country. However, of the four methods documentary letter of credit is the most expensive.

5) All letter of credits issued and received in Bangladesh are irrevocable in nature as opening or receiving revocable credit is completely banned by regulations of the country as well as by the UCPDC 600.

6) In the Garments Sector imports are made through back-to-back DP LCs to meet up the requirements for complete production and export in due time.

7) In our country garment exports are financed by the banks making lien and pledge on Export LC commonly called as Master LC. But as our exporters in many times become unable to make the shipment within validity the documents becomes discrepant. Therefore repatriation of the related proceeds becomes risky and vulnerable. Sometimes exporters can not ship the goods or due to discrepancies repatriation of proceeds fails and thus the goods become ‘stock lot’ and this way the exporter lost its business and the Bank falls in trouble.

8) Absence of Red Clause and Revolving LCs in the trade payment is mainly due to the country’s regulatory barriers.

9) In cases of LC advising banks generally prefer to select those banks available by their correspondent relationship. However, some banks also try to accommodate exporters’ choice but in doing so some banks avail the services of a second advising bank. This actually imposes additional cost burden on the trading parties.

10) Almost in all cases, confirming banks are selected by the issuing bank though in some cases banks try to accommodate exporters’ choice if they have arrangement with that bank.

11) For amendment of letter of credit, generally importers approach to the bank on behalf of the exporters. An amendment can only be made if all 3 (three ) prime parties i.e. the importer, the export and the LC issuing bank agrees to do so. But in our country it is observed that the banks without receiving any request from the beneficiary make amendment to an LC only receiving an amendment application from the importer.

12) Some banks are found to have practices to give a deadline for notification of acceptance or rejection of amendment, and note that if they do not receive any message within the given period from the beneficiary, the amendment deemed to be accepted.

13) Banks in our country tends to send discrepancy notice on each and every import documents even based on negligible discrepancies to safe-guard its position on making its confirmed foreign payment. This makes payments against import documents delayed and surely hampers the good will of the country. This is one of the reasons why UCPDC 500 year 1993 was rectified as UCPDC 600 year 2007. But these commercial banks more or less become bound to do so due to less effective legal structure in our country.

CONCLUDING REMARKS

Even at this real time communication world, letter of credit is considered to be the one of the safest way to remit and get proceeds. But still there are some factors to be re-considered like:

a) Restructure of legal enforcement against defaulter importers and exporters in Bangladesh.

b) Necessary changes in import policy to permit imports to be made without LC to reduce import cost and subsequently reduce prices on essential and consumable goods.

c) Financing in the garments sector by the banks should be made more secure etc.

In some countries of tight control on foreign trade operations, documentary credit is a very strong device in the government’s control and supervisory mechanism. In our country, this controlling over imports and exports are seen in a liberal ways but still some considerable changes in import and export policy and re-structuring and up-to-date foreign exchange guideline is required for our country’s smooth growth.

BIBLIOGRAPHY

Awasthi, G. S ( 1997 ), Trade Payments, International Chamber of Commerce, Paris.

Bangladesh Bank (1997), Guidelines for Foreign Exchange Transactions, Volume 1 and 2, Bangladesh Bank, Dhaka, Bangladesh.

Byrne, James E. ( 2001 ), “ Overview of Letter of Credit Law and Practice’’ in Byrne, James E and Christopher S. Byrnes ( eds. ) Annual Survey of Letter of Credit Law and Practice, Institute of International Banking Law and Practice, USA.

Choudhury, Toufic A. and Shah Md. Ahsan Habib ( 2006 ), ‘ An evaluation of the Operations of International Trade Payment Methods in Bangladesh Presented in the seminar organized by ICC, Bangladesh.

Chowdhury, L. R. (2000), A Textbook on Foreign Exchange.

Government of Bangladesh (1972), Foreign Exchange Regulation Act, 1947

International Chamber of Commerce (2006) Uniform Customs and Practices for Documentary Credit; Publication No. 600, The International Chamber of Commerce, Paris.

Mann, Ronald ( 2001 ), “ Role of Letter of Credit in Payment Transactions” in Byrne, James E. and Christopher S. Byrnes ( eds. ), Annual Survey of Letter of Credit Law and Prcitce, Institute of International Banking Law and Practice, USA.

Ministry of Commerce ( 2006 ), Export Policy 2006-09, Government of Bangladesh, Dhaka.

Ministry of Commerce (2006), Import Policy 2006-09, Government of Bangladesh, Dhaka

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글로벌 의류수출기업 ‘규모경쟁 가열’

Textile_industry 2016. 6. 22. 18:20

2009/08/07, 18:33:00

  • 대형밴더 3천~5천만불 통 큰 추가투자 줄이어
  • 영원ㆍ세아ㆍ한세ㆍ한솔ㆍ신원ㆍ팬코 대규모 증설

글로벌 초대형 의류수출 밴더들이 해외 생산기지를 중국과 중남미 지역에서 베트남으로 대거 전환하면서 통 크게 대규모 신규 투자를 확대하고 있다. 베트남에 대한 초대형 밴더들의 이같은 대규모 추가 투자는 비록 인건비가 최근 몇 년 사이 많이 올랐지만 중국과 중남미 지역에 비해 상대적으로 임금 수준이 낮고 양질의 노동력 확보가 아직까지는 비교적 용이한 이점이 있기 때문이다.

본지가 니트의류 ‘빅3’인 세아상역ㆍ한세실업ㆍ한솔을 비롯 세계 최대 아웃도어 메이커인 영원무역, 또 베트남에 대규모 투자를 벌이고 있는 신원과 팬코 등 글로벌 초대형 밴더들을 대상으로 조사한 최근의 베트남 투자동향에 따르면 먼저 세계 최대 아웃도어 생산수출 업체인 영원무역이 하노이 남딘공장의 대규모 아웃도어 생산공장에 55그룹의 니트봉제 라인과 편직시설을 추가해 본격 가동하고 있다.

남딘공장에 아웃도어 및 니트봉제, 편직설비를 함께 가동하고 있는 영원무역은 이 공장에만 1만 1000명의 종업원을 고용하고 있는데 곧이어 대규모 염색공장까지 증설하기 위해 본격적인 준비작업에 들어갔다. 영원무역은 방글라데시 다카와 치타콩에 3만 5000명 규모인 세계 최대 아웃도어 공장과 중국 청도의 1만명 규모 아웃도어 및 등산가방 공장, 일살바드로 등에 대규모 아웃도어 공장을 가동하고 있다.

특히 세계 최대 니트의류 ‘빅3’ 중 지난 2002년부터 호치민공장을 가동한 선발기업 한솔섬유는 최근 2차 프로젝트인 버티칼 시스템을 완료하고 6월부터 본격 가동에 들어갔다. 호치민 동라이공단에 소재한 한솔의 버티칼 공장은 기존 84개 봉제라인 종업원 5000명 규모의 니트의류 생산라인과 별도로 약 5000만달러를 들여 최신형 편직기 230대, 1일 7만 5000㎏의 니트염색공장을 완공해 풀가동에 들어갔다.

한솔섬유

한솔섬유는 베트남 외에 캄보디아와 인도네시아ㆍ필리핀ㆍ과테말라ㆍ온드라스 그리고 국내공장을 포함 8개국에 300개 라인의 니트봉제공장을 가동하고 있으며, 지난해 4억 8000만달러를 수출한 데 이어 올해 6억달러 수출을 목표하고 있는 가운데 기존 미국시장 외에 신시장인 일본시장의 성공적인 신장으로 목표달성이 무난할 것으로 낙관하고 있다.

이어 2003년부터 베트남에 대규모 공장을 가동하고 있는 한세실업은 베트남에 진출한 초대형 니트의류 밴더 중 투자를 가장 많이 확대하고 있는데 기존 호치민 인근 구찌공단에 150개 라인을 가동한 데 이어 티엔공단에 우븐봉제 59개 라인에 8개 라인을 증설, 9월 말부터 본격 가동에 들어가게 될 것으로 나타났다. 한세는 구찌공단 내 니트봉제 150개 라인과 티엔공단을 포함, 베트남에 200개 라인 1만 5000명을 고용하고 있어 베트남에서만은 생산규모가 ‘니트의류 빅3’의 선두주자인 세아상역 보다 더 크게 운영하고 있다.

한세실업

한세실업은 캄보디아 36개 라인, 인도네시아에 60개 라인, 과테말라 50개 라인, 니콰라과 40개 라인 등 세계 5개국에 400개 라인의 니트의류 생산공장과 2만 3000명 규모를 고용하고 있으며 작년에 6억 3000만달러를 수출한 데 이어 올해는 7억 2000만달러 달성이 무난할 것으로 보고 있다. 니트의류수출 ‘빅3’ 중 선두주자인 세아상역은 생산기지 거점을 인도네시아에 집중하고 있어 베트남 투자는 한솔과 한세보다 규모가 작지만 호치민에 72개 라인의 초대형 공장을 가동하고 있으며 5000명의 종업원을 고용하고 있는데 인도네시아 투자확대와 함께 베트남에 대한 대규모 투자도 적극 검토하고 있다.

세아

세아는 인도네시아의 대규모 버티칼 공장과 함께 과테말라에 프린팅공장과 봉제공장, 니콰라과, 중국 칭다오 등 5개국에 매머드 공장을 가동하고 있으며 해외공장 근로자 수가 2만 5000명에 달한다. 세아는 지난해 8억 2000만달러의 수출을 달성한 데 이어 올해는 9억 9000만달러를 바라보고 있는 니트의류 분야 세계 1위 기업이다.

신원

이어 신원은 하노이 빈푹성 빈예의 33만㎡ 대지에 2002년부터 니트봉제공장을 단계적으로 증설하면서 40개 라인의 니트의류공장을 가동한 데 이어 올 상반기 22개 라인 증설에 착수, 이를 7월 초까지 완공하고 현재 총 62개 라인의 니트봉제공장을 풀가동하고 있다. 신원은 이번 증설과 함께 내년 중 또다시 20~30개 라인의 증설을 추진해 총 100개 라인 규모로 확대할 계획이다.

신원은 과테말라에 초대형 니트봉제공장과 인도네시아 스웨터공장, 중국 칭다오공장, 개성에 매머드 공장 등을 각각 풀가동하고 있는 가운데 개성공단에 새로 짓고 있는 매머드 의류공장은 9월부터 본격 가동에 들어간다. 신원의 올 수출 목표는 2억 2000만달러이며 내수부문 비중이 수출비중과 거의 비슷한 수준이다.

팬코

특히 중국 청도와 평도에 매머드 니트봉제공장과 버티칼 시스템을 가동해 주목받고 있는 팬코는 최근 베트남에 편직과 염색공장을 포함한 대규모 버티칼 공장을 완공하고 8월부터 본격 풀가동에 들어갈 것으로 나타났다. 호치민 인근 미푹공단의 18만 3200㎡ 위에 건평 10만 4000㎡ 규모로 거설된 팬코는 베트남공장에 3000만달러를 투입, 기존 공장 옆에 새로 건물을 지어 편직기 120대와 니트염색 1일 포염 35톤, 사염 10톤 등 45톤 규모의 염색공장까지 완공해 가동하고 있는데 편직기 대수를 200대 규모로 증설할 계획이다. 또 기존 니트봉제공장의 60개 라인에서 대형 12개 라인을 증설, 72개 라인으로 확대했으며 종업원 수도 5000명으로 늘어나는 등 완벽한 버티칼 시스템을 가동하고 있다. 팬코는 이와는 별도로 중국 청도에 종업원 3000명 규모의 대형 봉제공장과 작년에 완공한 중국 편도공장에 봉제생산라인 48개, 편직기 250대, 염색공장(1일 포염 42톤) 등 또 하나의 대형 버티칼 시스템을 가동하고 있다.

대일 의류수출 1위 기업인 팬코는 이같은 대규모 투자가 성공적으로 이뤄지면서 작년에 1억달러를 수출한 데 이어 올해 1억 5000만달러로 늘어나며 내년에는 2억달러 돌파를 낙관하고 있다. 이같이 글로벌 초대형 밴더들의 베트남 투자가 집중되고 있는 것은 가파른 임금인상 추세에도 불구, 중국과 중남미 보다는 임금이 싸고 호치민은 이미 인력난이 심화되고 있으나 중부나 북부지역의 인력조달이 용이한데다 미국과 EUㆍ일본 등과의 교역조건이 활발해 적어도 향후 10년간은 경쟁력이 있을 것으로 판단하고 있기 때문이다.



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염료_다이스타

Textile_industry 2016. 4. 22. 10:51

인도 키리(Kiri), 세계 최대 다이스타(Dystar) 인수

‘고용승계/4개사업소 및 해외자회사 유지'

인도 키리(Kiri Dyes & Chemicals Ltd)사가 세계적인 염료메이커인 다이스타를 인수했다. 세계최대 염료메이커인 다이스타 경영권을 인수한 키리사는 인도에서 염료중간체를 주력으로 생산하는 글로벌 중간체 생산회사이다. 또 키리는 중간체외에 염료에서는 반응성염료만을 생산하는 업체이다. 특히 키리에서 생산되는 염료중간체는 다이스타가 가장 많이 수입했고 이어 국내 경인양행이 그 다음으로 많이 수입한 것으로 알려졌다.

다이스타 독일법인은 지난달 1일 파산수속을 개시한 이후 결국 지난달 10일 인도의 키리로 넘어갔다. 이번 인수에서 키리는 금융권과 컨소시엄 형태로 인수에 성공한 것으로 알려진다. 다이스타 채권자위원회는 키리의 매매계약에 동의하고 올 1월부터 실행에 들어가기로 했다.

이번 인수에서 키리와 다이스타는 융자의 유효성, 연방정부의 기업연합국으로부터의 인가의 필요성이나 국제은행의 승인등등의 조건을 받아야 할 필요가 있는 상태이나, 채권자 위원회는 이미 인수에 동의한 상태이다. 이에 따라 키리는 올 초부터 다이스타 그룹의 사업 활동을 인수하고, 융자확보에도 착수하고 있어 모든 필요조건이 예정과 같이 된다면 인수계약은 이행될 것으로 보고 있다. 다만 이번 인수로 당분간 키리와 다이스타는 이원화된 형태로 운영될 것으로 보인다. 키리는 다이스타의 정상화를 위해 자금을 투입해 인수했지만 큰 변화 없이 기존 다이스타의 운영은 기존대로 운영될 것으로 예상되고 있다. 다만 독일부분에만 구조조정이 진행될 것으로 보고 있다.

이번 인수로 다이스타텍스타일팔벤유한회사의 사업활동 및 독일에 있는 4개 사업소에서의 생산을 재개하기로 했다.우선 키리는 다이스타그룹과 다이스타의 4개사업소(프랑크푸르트, 레바쿠젠, 루토비크스하벤 및 부른스벡텔) 및 해외자회사 36개사를 병합해서 이어갈 계획이다. 다만 조제를 생산하는 게르츠리드사업소는 이번 인수에 포함되지 않았다.

이에 따라 부른스벡텔 및 레바쿠젠에서의 생산재개를 향해 기반을 구축하고 있다. 루토비스크하벤에 있는 인디고염료 생산도 일시적인 중단 없이 계속 생산한다. 이번 다이스타 인수에서 키리는 독일에서 최대 800명, 해외자회사 약 2000명은 고용이 승계하는 것으로 알려진다. 다이스타코리아 이청부장은“키리의 이번 다이스타인수로 다이스타의 영업환경에 큰 변화는 아직까지 없다”며 “다소 불안정하게 공급되어온 제품들도 조만간 정상화될 것”이라고 밝혔다.

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염료_NOVACRON

Textile_industry 2016. 4. 22. 10:49

노바크론, 연속 및 CPB염색에 주력

헌츠만, 3개 기능성 염료군으로 전개

헌츠만이 연속염색 및 CPB 공정에 적용하는 주력 상품으로 노바크론(NOVACRON)이 떠오르고 있다. 노바크론은 헌츠만에서 생산한 혁신적이며 역동적인 염료로 담중농색의 이상적인 관리를 위해 완벽한 제품 공급을 비롯 생산성 및 효율성이 높다고 알려진 제품이다.

최근에는 색상에 대한 요구가 다양화 되면서 더 이상 한가지 염료군으로 모든 기대치를 만족시킬 수 없는 경우가 많아지고 있다. 또한 모든 색 농도에 대한 요구 사항들의 만족과 더불어 생산 코스트 최적화 그리고 각각의 차별화된 색상에 대해 적절한 기술력을 갖는 염료를 선정하는 것이 그만큼 중요해졌다.

노바크론은 이러한 역할을 하는 단일 기술은 아니지만, 가능케 하는 염료 제품이라고 헌츠만은 강조한다. 이를 위해 헌츠만은 특정 색상에 대한 요구사항을 만족시키기 위해 노바크론은 3가지 염료군으로 만들었다.

  • NOVACRON-NC는 담색에서 밝은 색상까지 구현할 수 있는 최첨단 기술 수준의 혁신적인 염료 군.
  • NOVACRON-C 중색에서 우수한 색상을 구현, 꾸준히 업그레이드해 오고 있는 오래 전부터 사용되어 온 기준이 되는 염료군.
  • NOVACRON-S 새로운 색 농도를 구현하기 위해 최근 출시된 새로운NOVACRON-S 염료는 극농색을 경제적으로 매칭하기에 탁월한 단일 혁신 염료군

혁신적인 노바크론염료는 최상의 기술력을 이용한 최고 품질의 제품만을 지속적으로 공급함으로써, 섬유부분 산업에 대한 역량 및 혁신 정신을 반증하는 제품이라고 헌츠만은 말한다.

특히 헌츠만은 위 세 가지NOVACRON염료 군은 시장에서 요구하는 모든 색상을 커버함과 동시에 개별적인 색상 요구 또한 매칭할 수 있는 제품이라고 소개한다. 특히 이 제품군들은 최상의 재현성, 용이한 수세성, 전반적인 견뢰도 수준 향상을 통해, 비용 절감 효과 이상의 효과를 얻는다고 말한다.

현재 노바크론(NOVACRON)은 Huntsman Corporation 의 고유상표로 등록되어 있다.

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A New Environmentally Friendly Wetting Agent for Architectural Coatings

Textile_industry 2016. 4. 4. 13:27

직접적인 관련은 없지만 ....

Architectural coatings formulators must continually adjust to market-driven performance criteria, more stringent environmental standards and economic pressures. Most recently, paint manufacturers around the globe are promoting the elimination of alkyl phenol ethoxylate (APE)-containing products in their architectural paint formulations. In addition, VOCs are also being reduced or eliminated from today’s formulations. All of these actions help to promote environmentally friendly and greener formulations, but at what price to performance? Concerns regarding the environment and persistent toxic materials have forced customers to search for new additives with equivalent or improved performance at the same prices they are currently paying for traditional additives. A new, environmentally friendly wetting agent for architectural coatings has been developed that can be used as a drop-in replacement for simple and modified APEs. This new, APE-free surfactant offers efficient wetting of titanium dioxide during grinding, improved freeze-thaw and viscosity stability in the formulated paint, improved foam control, better scrub resistance, and improved flow and leveling, all without contributing additional VOCs to the paint formulation.

Figure 1 Click to enlarge Background

Most architectural paints are composed of a few basic ingredient types: an emulsion or latex, pigments and additives (Figure 1). Each material plays a vital role in the overall performance of the finished paint, so raw material selection is critical. Improper selection of any of these may drastically affect the paint properties. For example, choosing the wrong binder may result in poor durability, excessive dry times or lack of adhesion to the substrate. Similarly, a poorly chosen wetting agent or surfactant can lead to poor pigment dispersibility, resulting in loss of gloss and poor film aesthetics.

For architectural paints, surface active agents, also known as surfactants, are used to lower surface or interfacial free energies of the aqueous phase to achieve good pigment wetting for efficient grinding and consistent substrate wetting for defect-free coatings. Good wetting performance in these applications is demonstrated by low dynamic surface tension values that occur when the surfactant can migrate rapidly to newly created interfaces created during manufacturing and application. Low dynamic surface tension promotes excellent wetting on multiple surfaces and efficient pigment grinding; this, in turn, leads to improved coverage and adhesion, reduced grind times and enhanced color development.

Figure 2 Click to enlarge Surfactants

The conversion of solvent-based coatings to water-based systems has presented the additive manufacturer with a variety of challenges. Typical surface tensions of solvent-based systems are in the 25 to 35 mN/m range, mostly due to the solvents used in these systems. Water-based coatings, on the other hand, typically have surface tensions of 50 mN/m or higher, primarily due to the high surface tension of water at 72 mN/m. When painting a substrate with a surface energy of 35-45 mN/m with a water-based system, reduction in surface tension of the coating must occur.(2) As seen in Figure 3, spontaneous wetting of a surface can only occur when the surface tension of the liquid is lower than the surface energy of the substrate. To accomplish this, surfactants or wetting agents are commonly used in water-based coating applications.

The process of preparing a pigment dispersion is typically defined as the sum of three distinct processes. The first process involves wetting the dry pigment to displace air and any other impurities from the pigment surface. Once the pigment particles are sufficiently wetted out, grinding occurs to reduce the large pigment aggregates and agglomerates to their primary particle size. The last step involves stabilizing the dispersion to enhance color and viscosity stability, as well as shock resistance and letdown compatibility.

For waterborne coatings, the dispersion process presents a number of challenges. For example, the high surface tension of water and the interfacial tension between the continuous water phase and the pigment must be reduced to adequately wet the pigment particles, as shown schematically in Figure 4. To reduce the surface and interfacial tensions, pigment wetting surfactants are used. These additives adsorb onto the pigment surface, reduce the interfacial tension and prepare the pigment for further adsorption of dispersion-stabilizing molecules.(3) When the surface and interfacial tensions are low, milling efficiency is improved. This results in shorter grinding times and lower energy demand to reach primary particle sizes, lower grinding temperatures and lower viscosities of the mill base, which can lead to higher pigment loadings.

Traditional wetting agents include alkylphenol ethoxylates, which have excellent ability to wet out the pigment surfaces. Due to the growing concern that APEs are endocrine disrupters and that they could adversely affect health, there is a growing trend towards replacing these materials in coatings applications. Because of their hydrophilic nature, APEs tend to stabilize foam and can cause water sensitivity issues in the final film. Use of these surfactants also leads to the use of strong defoamers to control foam which, in turn, can cause defects in the final film. Choosing the right wetting agent for pigment wetting will not only provide the most efficient milling and color development, but may also aid in preventing foam generation during manufacture and application.

Once the pigment aggregates and/or agglomerates have been broken down to their primary particle size, the particles must be stabilized to prevent re-agglomeration and flocculation. As seen in Figure 5, stability is usually achieved through steric and elecrostatic stabilization. Electrostatic stabilization is accomplished through electric double layers, which are formed due to the adsorbed molecules on the particle surfaces. Steric stabilization is accomplished by the interactions in the aqueous phase of hydrophilic segments of molecules adsorbed onto the particle surfaces.(3)

These stabilizing hydrophilic segments are often from surfactants containing ethoxylates of alkylphenols, neutralized alkyl phenol sulfonates or from polymeric molecules such as amine-neutralized copolymers of poly(acrylic acid). Depending on the formulation, one additive may be used for both the wetting and stabilization process. Pigment type, application parameters and cost are all factors to consider when choosing a dispersing package.

New Surfactant Development

Additives are used in architectural paints to not only wet out pigments and substrates but also to help with foam control, durability, block resistance, color development, washability or scrub resistance, and to help lower VOCs. A new, APE-free surfactant has been developed to improve these properties in a cost-effective manner while helping to minimize the VOC content of the final formulation.

Table 1 Applications Testing


Three model paint formulations were prepared to evaluate the new APE-free wetting agent.

These formulations can be found in Tables 1-3. This new surfactant, designated as E2010, was benchmarked against two commercially available APE-containing surfactants designated as low-foam APE-containing surfactant (LFAPE) and hydrophobically modified APE (HMAPE).

All additives were used at the recommended use level specified in the starting-point formulation. Physical properties of the surfactants tested can be found in Table 4.

All paints were prepared following the manufacturer’s specified procedure and, following formulation, were applied using a 3-mil bird bar. Viscosity measurements, an indication of paint stability, were determined using a digital Stormer Viscometer 24 hr after preparation and 2 weeks after aging at 50 °C. Blocking samples were prepared by coating the paint onto Leneta charts using a 3-mil bird bar, allowing the paints to dry for 24 hr at room temperature and then placing them face to face for 1 hr before pulling apart.


Gloss and contrast ratios were measured using a BYK-Gardner Spectro-Glide 45/0 Glossmeter. To perform the rub-up test, the paints were tinted with the suggested tint base, coated onto a Leneta 1B chart with a 3-mil bird bar and allowed to rest for 1 min. Rubs were done on the coated section for 30 sec, and then the charts were dried for 24 hr under controlled temperature and humidity. Once the paint cured, color differences were measured between the rubbed and unrubbed areas on the chart. A Delta E value of less than 1 resulted in a “Pass” rating.

Sag values were measured using a Leneta anti-sag meter, and leveling was determined by following ASTM D 4062 using a Leneta Leveling Test Blade.

Foam tests were conducted by agitating a sample on a Red Devil Paint Shaker for 15 min and recording the density of the paint. To calculate the percent change in foam density, the difference between the density of the unagitated samples and the agitated samples was measured.

A Washability and Wear Tester Model D10 was used to measure scrub resistance.

http://www.pcimag.com/authors/2355-paul-marcella

Lastly, to determine the freeze-thaw stability, 300 g of paint were weighed into an 8 oz, lined can. The cans were placed in a freezer at 0 °C for 15 hr followed by a thaw at room temperature for 4 hr. The cans were then placed in a 25 °C water bath for 2 hr. Finally, the paints were stirred and a Stormer viscosity was taken. This process was repeated five times or until the viscosity could no longer be measured. The last cycle at which a viscosity could be measured is the reported value.

Results and Discussion

Some notable features seen in Table 4 illustrate the ease of use of the newly developed APE-free surfactant. With a pour point of 0 °C, E2010 is much easier to handle in cold environments. The cloud point of E2010 is also significantly higher than the other two surfactants tested. Lastly, due to its composition, E2010 will be compliant with 40 CFR regulations, making it ideal for agricultural coatings and applications.

Evaluations of the ultralow-VOC interior eggshell formulation show excellent performance of the E2010 sample compared to the two APE-containing surfactants. As a replacement for the LFAPE-, or for HMAPE-containing surfactants, E2010 showed numerous benefits in the resultant coating (Table 5). These benefits include excellent gloss control, improved opacity and tint strength, as well as enhanced color acceptance and viscosity stability in tinted systems. E2010 also offers excellent scrub resistance and improved blocking resistance. All formulations exhibited excellent flow and leveling properties and equivalent foam control.

Table 6 illustrates the performance of the surfactants tested in the interior/exterior semi-gloss formulation.

Coating evaluation showed that E2010 surfactant achieved improved leveling (Figure 6), enhanced scrub resistance, comparable gloss, opacity, color acceptance and tint strength, competitive foam control and comparable freeze-thaw stability performance over the APE-containing surfactants.

Figure 7 illustrates the scrub testing results of the semi-gloss formulation formulated with E2010 surfactant on the right and with the HMAPE surfactant on the left. When used in this formulation, the E2010 surfactant provided an improvement of 27% in scrub resistance over the APE-containing surfactant.

Also, as seen in Figure 8, E2010 offers enhanced foam control over the LFAPE-containing formulation, thus allowing the formulator to decrease the amount of defoamer used in the paint, leading to reduced overall formulation cost. Improved scrub resistance as well as comparable leveling, color acceptance, gloss and tint strength were also seen with the E2010-containing paint.

Table 7 VOC Measurements

The VOC contribution of E2010 to the formulated coating was measured following EPA Method 24. To perform this test, a commercially marketed, zero-VOC architectural paint was used. To this paint, 1% of the E2010 surfactant was added and the paint was subjected to the Method 24 test. The test results indicated that E2010 contributed zero VOCs to the paint.

Conclusion

The choice of wetting agents used in architectural coatings can have a significant impact when formulating low- to zero-VOC paints. A new, environmentally friendly, APE-free surfactant has been developed to assist in the formulation of these coatings while offering improved performance properties over conventional APE-containing surfactants. E2010 surfactant offers efficient wetting of titanium dioxide during grinding, improved freeze-thaw and viscosity stability in the formulated paint, improved foam control, better scrub resistance, and improved flow and leveling, all while contributing no additional VOCs to the paint formulation.

The paper was presented at the 2010 Southern Society for Coatings Technology Annual Meeting in Daytona Beach, FL.

Related Articles A New Substrate Wetting Additive for Low-VOC Aqueous Adhesive Products Foam-Control Solutions That Meet Today's Tighter Environmental Regulations Defoamers and Wetting Agents for Waterborne Alkyd Coatings New Water-Soluble Catalyst for Two-Component Waterborne Polyurethane Coatings Related Products Wood Coatings Fluorinated Coatings and Finishes Handbook Failure Analysis of Paints and Coatings, Revised Edition Coating Basics Related Events Architectural Coatings Innovations for Professional Painters Puzzled by Global VOC and Emission Changes in Architectural Paints? Exploring the Benefits of High-Functionality UV/EB Components for Hard, Scratch-Resistant Coating Applications Advances in Coatings Science and Technology Related Directories Troy Corp. Dow Chemical Company, Dow Coating Materials Arkema Coating Resins Solvay


Related Articles

A New Substrate Wetting Additive for Low-VOC Aqueous Adhesive Products

Foam-Control Solutions That Meet Today's Tighter Environmental Regulations

Defoamers and Wetting Agents for Waterborne Alkyd Coatings

New Water-Soluble Catalyst for Two-Component Waterborne Polyurethane Coatings

Related Products

Wood Coatings

Fluorinated Coatings and Finishes Handbook

Failure Analysis of Paints and Coatings, Revised Edition

Coating Basics

Related Events

Architectural Coatings Innovations for Professional Painters

Puzzled by Global VOC and Emission Changes in Architectural Paints?

Exploring the Benefits of High-Functionality UV/EB Components for Hard, Scratch-Resistant Coating Applications

Advances in Coatings Science and Technology

Related Directories

Troy Corp.

Dow Chemical Company, Dow Coating Materials

Arkema Coating Resins

Solvay


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Guar seeds plunge 10% in 2016

Textile_industry 2016. 3. 2. 16:12
Guar seeds plunge 10% in 2016, analysts see no trigger for recovery

Sutanuka Ghosal, ET Bureau Feb 8, 2016, 11.50AM IST

Guar seed prices have dropped 10% since the beginning of the year, prompting heavy selling of the commodity by investors on Friday as analysts said there was no immediate trigger for recovery.

A drop in crude oil price has forced North America's oil and drilling sector to reduce guar gum imports. This, coupled with higher arrivals in the market, has pushed down guar seed prices, making it unattractive to investors.

"Short selling is being seen for guar seed," said Vinod TP, an analyst with Geofin Comtrade.

The price of guar seeds has slipped from Rs 3,353 per tonne on December 31, 2015 to Rs 2,997 per tonne in the first week of February. "Technically, as the price broke the support of Rs 3,040 it is expected to see downside towards Rs 2,485 or even lower to Rs 2,200 levels in the near term. However, if prices sustain above the support of Rs 3,040 it may trigger short covering rallies. Major buying or slight reversal rally is only expected above Rs 3,530 levels," said another analyst, who did not wish to be named.

Guar seed is expected to trade weak amid an increase in short sellers on the futures platform and higher output. Guar output is also seen higher, with crop from Gujarat, the second largest producer, seen at 1.79 lakh tonnes in 2015-16, 7% higher than in the previous year. Moreover, higher production for the past two years has ensured higher stocks for guar this year, thus keeping prices down.

PK Hissaria, managing director of Sunita Hydrocolloids said that a price fall will act as a disincentive for farmers and the area under guar seed might come down in the upcoming Kharif period. "However, there will be no drastic reduction in acreage as guar plantings increase the yield of subsequent crops as this legume conserves soil nutrient content. And moreover, it is easier to grow guar as water requirement is less," he said.

Guar gum is extracted from guar seed, which is used by drilling companies to thicken water that is mixed with sand and pumped through shale rock cracks to extract gas. It is also used as a thickening agent in products like ice cream, bread, pasta, sausages and pastries.

In the 2015 kharif season India had produced 17 lakh tonnes of guar seed, making it the largest producer with about 80% of world production. Rajasthan, Gujarat and Haryana are the main producing regions, and Jodhpur, Sri Ganganagar and Hanumangarh in Rajasthan the major guar trading markets. The best quality guar beans are sometimes known as fast-hydrating guar.

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McAfee 제거

MyLife 2016. 2. 29. 12:42

McAfee제품들 깔리기 시작하면 짜증납니다. 끼워팔기등이 체계적이이어서 다른 소프트웨어보다 제거가 힘든거 같습니다. 이렇게 하지 않아도 먹고살만할텐데.... c8,  McAfee 제거방법 참조 바랍니다. ***다음 링크를 클릭하여 맥아피 전용 제거 도구를 다운로드 합니다.

http://download.mcafee.com/products/licensed/custsupportpatches/MCPR.exe

클릭할 수 없으시면 주소를 전부 복사하여 주소 창에 넣습니다. 

  1. [실행]을 클릭합니다.
  2. <NEXT>를 클릭합니다.
  3. <Agree>를 선택 하신 후 <NEXT>를 클릭하며 인증번호 (대소문자 구분)를 입력 합니다.
  4. 제거 완료 후 를 클릭하여 컴퓨터를 재 부팅 합니다.


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베트남 수출입 참조

Sales 2016. 2. 18. 11:26

베트남의 통관행정과 관련해서는 많은 문제점을 지적할 수 있다. 우선 관세행정제도가 아직 정교하게 정비되지 못했다는 점이다. 둘째는 관련된 기관 및 직원들의 업무처리 행태가 아직 봉사정신과도 멀고, 투명하지 못하다는 지적이 많다는 점이다. 셋째는 전산지원시스템의 지원서비스가 한국과는 턱없이 다르다는 점이다. 넷째로는 통관관련 직원들이 현대적인 경영관리기법 등에 대한 인식이 매우 부족하다는 점이다.

문제점을 예를 들면, 관세 법령에 대한 해석이 세관 마다 담당자 마다 다르다든가, 전산 수출입신고를 하고서도 신고서를 다시 프린트하여 직접 세관을 방문하여 제출하여야 한다든가, 수출화물 소재지에서 수출신고를 하고 다시 항만세관에 가서 선적확인을 하여야 한다든가 하는 문제점들이 수출입업체의 요청에도 불구하고 시정되지를 않는다.

직원들의 업무처리 행태 또한 그렇게 합리적이지 못한 것으로 널리 알려져 있다. 예컨대, 수입물품이 긴급히 생산에 사용되어야 할 물품이라고 세관직원들에게 얘기하면, 오히려 통관이 더 늦어져 버린다고 업계관계자 들은 불평을 하소연 한다. 세관직원들의 청렴성에 대하여 많은 한국 투자자들이 불평하곤 한다. 이러한 불편 때문에 한국 투자자들은 통관시에 자사가 직접하기 보다는 포워딩업체나 물류업체에 의뢰하는 경우도 많다. 그리고, 전국적으로 전산시스템이 연결되어 있지 않아, 통계확보가 되지 않으며, 남부지역 세관과 북부지역 세관간의 교류도 미흡하여, 남부 또는 북부의 잉여화물이 북쪽으로 또는 남쪽으로 직접 이관되지도 않으며, 업계는 오히려 외국으로 수출하여 다시 수입하는 방식으로 이체한다고 한다.

http://www.vinahanin.com/vinawiki/242812

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섬유 산업의 친환경 기준

Eco_Friendly 2016. 2. 17. 18:14

소비자의 녹색 운동에 대한 관심과 친환경 제품에 대한 선호도가 좀 더 높아 지고 있으며, 이에 따라 녹색 소비문화의 트랜드가 섬유 및 의류 등에도 확대되고 있는 실정이다.현재 유럽과 미주의 주요 바이어들은 이러한 사회의 환경에 대한 요구에 부응하여 제품의 친환경 및 유해물질에 관련된 기준을 마련하고 적용하고 있다.

섬유 및 의류 제품의 생산에서 폐기까지 전 과정에 대한 환경 침해를 최소화 할 것이 요청 되고 있다. 따라서 염료의 선정에도 세심한 주의가 필요하며 제품의 포르말린 함유량을 낮추고 각종 농약이나 중금속을 규제하여 안전하고 친환경 적인 제품이 되도록 노력을 기울여야 한다. 섬유나 의류에 친환경과 관련한 규제물질에 대한 정보는 아래와 같다.

  1. 수소이온 농도지수 (pH Value) 
    인간의 피부는 약산성을 띄고 있어 여러 질병발생의 억제효과를 가지고 있다.섬유와 함께 중성(pH 7) 또는 약산성 (pH 7이하)을 갖는 섬유는 피부에 친화적인 반면 극단적인 pH조건하에서는 원단은 손상을 입게 된다.

  2. 폼알데하이드 함량 (Formaldehyde content)
    합성수지의 마감처리제로 첨가되는 포름알데히드는 원단의 수출방지와 제품표면을 매끄럽게 하고, 주름방지와 방오가공 마무리에 사용된다. 그러나 수지로 가공 처리된 원단은 잔류염소로 인하여 악취 및 직물손상, 그리고 피부자극을 일으킬 수 있다. 포름알데이히는 의류에서 수지형태나 유리 포름알데히드 형태로 검출된다.(높은온도, pH, 또는 산화제로부터 수지에서 분리된다) 포름알데히드는 사람의 점막과 호흡기에 강한 자극과 염증을 초래할 수 있으며, 피부염증 및 알레르기의 원인이 되며 발암성물질로 간주되기도 한다.

  3. 중금속 잔류물 (Heavy Metal Residues)
    일부 안료에는 중금속이 잔류하며, 이러한 중금속은 천연섬유에서 또한 검출 될 수 있다. 천연섬유를 이루는 식물들이 대기 중과 토양 속에 중금속을 흡수하기 때문이다. 체내에 흡수된 유해물질인 중금속 성분들은 신장, 뼈, 심장과 뇌에 축적된다. 특정 물질이 신체 장기에 축적되어 쌓이게 되어 어느 수위에 도달하면 무서운 결과를 초래 할 수 있다.

    예를들어, 수은은 신체의 신경체제에 영향을 미친다. 이러한 특징은 어린이들이 어른보다 더 높은 수치의 중금속을 흡수하기 때문에 특히 어린이에게 더욱 해롭다.

  4. 잔류 농약 (Pesticides Residues)
    농약은 식물을 재배하는 동안 박멸을 위해서, 곤충으로부터 보관하는 재배식물을 보호하기 위해서 사용된다. 농약은 점차적 혹은 치명적으로 인간에 독성을 미친다. 때때로 농약이 피부를 통해 흡수될 수도 있다. 또한 이러한 농약은 발암물질의 원인이 되기도 한다.

  5. 로로페놀 (PCP)&2,3,5,6-테트라클로로페놀(TeCP)
    제 3세계국가들에서 주로 곰팡이에 의해 발생되는 얼룩을 방지하기 위하여 염소화 페놀화합물을 섬유와 가죽에 바로 사용하고 있다. Pentachlorophenol(PCP)와 2,3,5,6-Tetrachlorophenol(TeCP)는 매우 독성이 강하며, 발암물질로 간주된다.

  6. 아조염료 (Azo dyestuff) 아조염료는 환원반응에 의해 분해되어 MAK Group Ⅲ A1 과 A2 로 불류된 아릴아민물질을 생성 할 수 있으며, 이러한 물질은 발암물질로 사용을 금지하고 있다. Azo 염료는 질소를 포함하는 화학합성염료 그룹의 이름이며, 이 염료는 주로 textile에 사용된다. 특정 AZO 염료는 질소를 포함하는 화학합성염료 그룹의 이름이며, 이 염료는 주로 textile에 사용된다. 특정 AZO 염료에서의 생성물은 발암물질로 간주되다.

  7. 유기염소계 캐리어 (Chlorinated Organic Carriers)
    이 물질은 폴리에스테르 직물의 염색시 촉염제로 사용되고 있으며, 유해물질로서 간의 기능을 저하시키고 피막조직의 분비물과 피부를 자극시키며 재생을 방해한다.

  8. 견뢰도 (Colorfastness)
    습기나 땀, 마찰에 의해 의복의 색상 이염이 발생될 수 있으며, 염료의 착색이 피부를 통해 인체에 흡수될 수 있으며, 이는 유아에게는 매우 중요한 문제를 일으킬 수 있다. 특히 유아용 제품에 대한 침(타액,唾液)견뢰도의 경우 특별한 주의가 필요하다.

  9. 냄새 (Smells) 섬유제품의 냄새발생은 제품내 과량의 화학물질이 남아 있을 수 있음을 암시 하며, 이러한 잔류하고 있는 화학물질은 건강에 유해할 수 있다. 곰팡이, 나프타, 비린내, 방미처리제 등이 해당된다.

  10. 니켈방출 (Release of Nickel)
    니켈이 함유되어 있는 제품이 피부에 직접 접촉되거나 지속적으로 접촉하는 경우, 니켈에 의한 피부 자극이나 알러지 반응을 일으킬수 있기 때문에 니켈 사용을 제한하고 있다. 이러한 제품에는 리벳, 단추, 지퍼와 같은 금속재질의 의류부자재가 사용되고 있다.

  11. 유기주석화합물 (Organo tin Compounds)
    트리부틸주석화합물(TBT), 디부틸주석화합물(DBT) 트리부틸주석화합물(tributyltin, TBT)은 항균제로 사용되며, 고농도는 독성이 있는 것으로 알려져 있다. 이 물질은 피부를 통하여 인체 내에 유입될 수 있으며, 양에 따라 신경계에 영향을 줄 수 있다. 섬유산업에서는 TBT물질은 양말이나 신발, 스포츠의류 사용시 발생하는 땀과 반응하는 박테리아의 분해 작용을 억제하여 불쾌한 냄새 발생을 예방하는데 사용되고 있다. 디부틸주석화합물(dibutyltin, DBT)은 유기주석화합물중의 한 종류로, PVC 제품의 안정제, 전착페인트의 촉매제, 폴리우레탄 제품이나 에스테르화 반응에서의 촉매제 등 다양한 섬유분야에서 사용되고 있다.

  12. 드라이클리닝에 사용된 오존파괴물질 (ODSs Dry Cleaning using Ozone Depleting Chemicals)
    미국의 환경보호국(EPA)은 청정공기 대기오염방지법의 개정판에서 오존파괴물질(ODS) class 1로 분류된 물질을 함유하거나 제조된 제품에 대하여 경고 문구를 표시하며, 포말 성분과 같은 필수품이 아닌 제품에 대해사 ODS class 2로 분류된 물질의 사용금지를 요구하고 있다. 일반 세탁으로도 충분한 효과가 있음에도 불구하고 소비자로 하여금 드라이클리닝을 요구하는 경우가 있다. 드라이클리닝 과정에서 프레온이라는 오존파괴물질(CFCs)이 사용되며, 이 프레온이라는 물질은 대기권에서 분해가 되지 않고 수십 년에 걸쳐 성층권으로 이동하여 오존층을 파괴하여 감소시키게 된다. (온실효과-Greenhouse effect)

  13. 형광증백제 (Brighteners)
    형광증백제는 섬유를 더 선명하게 보이게 할뿐만 아니라 화려한 색깔의 파스텔 의류에 추가 광채를 제공하는 데 사용된다. 형광증백제는 눈에 보이지 않는 자외선 및(UV light)을 눈으로 볼수 있는 밝은 청색으로 변환시킨다. 육안으로 이러한 밝은 청색의 색조가 더욱더 하얗게 보인다. 이러한 물질들은 알레르기 및 피부질환을 일으킬 수 있다.

  14. 섬유유연제 (Softening Agents)
    직물의 표면을 유연하게 하고 섬유를 부드럽게 하기 위해 첨가하는 섬유유연제는 가끔 직물을 거칠게 할 수 있다. 또 어떤 섬유유연제는 알러지를 유발하기도 한다.

  15. 제품생산활동 (Product Production)
    가급적이면 재활용된 재료를 사용하는 것이 좋다. 친환경 원료를 사용하는 것이 에너지 절감효과가 있으며, 오염이 적은 처리방법을 사용하여 폐기된 물질을 재활용하는 것이 발람직하다.

  16. 포장 (Packaging)
    포장 재료를 많이 사용할수록 폐기되어지는 물질들도 많아진다. 폴리염화비닐(PVC)플라스틱이 발포팩과 상자류로 사용되어진 후소각, 폐기되면PVC 1킬로그램 당 582그램의 염산이 배출되며 이것이 산성비의 원인이 된다.

  17. 가소제 (Plastincizer - Phthalates)
    가소제는 PVC 제품에 유연성과 유동성을 주기위해, PVC제조에 있어 가장 흔하게 첨가되는 물질이다. 그러나 연구 결과에 따르면, 일부 가소제성분은 발암성, 돌연변이성, 재생독성 등과 같은 인체유해성을 가지며, 특히3세 이하의 어린이들에게 위험하다고 알려져 있다.

  18. 난연제 (Flame Retardants)
    난연제는 난연성을 증가시키기 위해 원단 등에 첨가하는 물질이다. 2, 3-디브로모프로필포스페이트(dibromopropyl phosphate),폴리브롬화바이페닐(polybrominatedbiphenyls, PBB),폴리브롬화디페닐에트르(polybrominated diphenylethers, PBDE)등이 대표적인난연제이며, 많은 양의 난연제가 체내에 지속적 노출될 때, 면역성저하, 갑상선 부종, 기억력 감퇴, 관절경직 등이 발생할수 있다고 한다.

  19. 항미생물제 (Biocides)
    항미생물제는 일반적으로 유기주석화합물이거나 4중 암모늄화합물(quarternary ammomium compounds)이다. 대부분의 항미색물제들은 매우 유독하며, 살균제나 살충제로 사용된다.

  20. 염료 (Dyes)
    섬유산업에 사용되는 일부 염료들은 알레르기성 염료나 발암성염료로 분류되어 있다. 이 염료들의 장기적인 노출은 알레르기나 암을 일으키며, 19종의 알러지성 염료와 7종의 발암성 염료가 규제되고 있다.

  21. 디메틸푸마레이트 (Dimeethyl fumarate)
    일반적으로 용매로서 많이 사용되는 휘발성 유기용매이며, 발암성물질로 알려져 있다. 체내에 축적되지 않도록 작업 시 주의를 요하는 물질이며, 피혁이나 모피 등의 가죽소재에 많이 사용되므로 해당 제품의 경우에는 잔류량을 규제하고 있으므로 함유여부를 확인하여야 한다.


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Polymeric Hiding Technologies That Make TiO2 Work Smarter

Polymer_chemistry 2016. 1. 30. 18:54

Polymeric Hiding Technologies That Make TiO2 Work Smarter


With the current tight supply and cost run-ups of TiO2, paint companies are looking into options to minimize the effect of the cost increases and reformulate for more efficient utilization of TiO2. This article presents two technologies from Dow Coating Materials that address this issue. ROPAQUE™ opaque polymer is a scattering pigment that partially replaces TiO2, while EVOQUE™ pre-composite polymer directly improves the wet and dry hiding efficiency of TiO2. These technologies can be used individually or in combination to formulate at lower TiO2 levels, and can contribute to overall better paint film properties.


Scattering Efficiency

Titanium dioxide has been used in paints for a century, and in the last 50 years has become the predominant white pigment in architectural coatings. The increase in utility was driven by the desire to reduce the toxicity and environmental impact of white lead. In addition, the higher refractive index and greater optical whiteness allowed formulators to achieve high-hiding white paints. The TiO2 suppliers continued to refine their processes to maximize the scattering and hiding power by reducing impurities and optimizing the particle size and distribution.

Figure 1 

Today’s commercial grades of TiO2 may be nearing the theoretical limit of scattering obtainable from individual particles of this costly raw material. However, when used in most paint formulations, some of this value is lost because the individual particles of TiO2 cannot scatter independently of one another. Particles that are close to one another interfere with their ability to scatter light efficiently. This effect has been quantified as the overlap of the scattering volumes, which are larger than the actual particles,(1) and is known as dependent scattering or more commonly, crowding. There are three factors that contribute to crowding:

  • the use level or concentration of TiO2 in the paint film;
  • the effect of extender, especially those of larger particle size;
  • the quality of the TiO2 dispersion or distribution in the paint film.

At the use level required in white, pastel and medium bases below critical PVC (CPVC) paints, the TiO2 scattering efficiency is compromised by crowding, as depicted by the regular TiO2 line in Figure 1.

When using high levels of TiO2 there is little that can be done to overcome this effect. The distribution of TiO2 in a paint film is, at best, random. As a result, pigment particles are not equally spaced, which results in areas of low and high concentration, as shown in Figure 2a. The high-concentration areas lower the scattering efficiency of TiO2 by exaggerating the effect of crowding. Improving the scattering efficiency of TiO2 would likely reduce the cost of the formulation as well as the environmental footprint by allowing for reduced use levels of this costly and energy-intensive raw material.


Figure 2 

Extenders also play a role in the scattering efficiency of TiO2 by increasing the crowding effect because they reduce the available volume that TiO2 can occupy.(2) Extender crowding is most evident for extenders greater than a few microns in diameter. Small particle size extenders are used to minimize the effect but they do not completely eliminate it. The spacing effect frequently attributed to small extenders does not lead to higher hiding than that attainable with a good dispersion of TiO2 in an unextended paint. It is the non-crowding effect of small particle size extenders, not an active spacing effect, that allows the paint to approach the compromised hiding obtainable with a best random distribution.

The effect of different pigments and extenders can be shown in a simple experiment. A model architectural paint formulation was made with 22 PVC of TiO2. Three different pigments and extenders were added while maintaining the TiO2 PVC and volume solids. The total PVC was allowed to increase with the additional pigment and extender. The pigments and extenders were a 10 µm calcium carbonate, a 1.5 µm calcined clay, and a 0.4 µm opaque polymer.

Figure 3

The scattering of the paint was measured and is plotted in Figure 3. Note that the scattering decreases dramatically with the addition of the large calcium carbonate extender, indicating an increase in the crowding effect. The small-particle-size calcined clay has little effect on scattering, indicating a minimal change in crowding. Opaque polymer actually increases the scattering. Unlike extenders, it is a scattering pigment, so it directly contributes to scattering. Additionally, its small particle size does not further crowd the TiO2. The net effect is an increase in scattering when using opaque polymer, which allows for the removal of TiO2 while maintaining performance properties. In practice, opaque polymer can allow for the removal of half of the TiO2 in a flat formulation and up to 20% in a semigloss or satin formulation. When working with small-particle-size extenders, it is important to keep in mind the relatively high binder demand of these materials. By comparison, opaque polymer is much lower in binder demand due to its uniform spherical shape, which allows for higher use levels without compromising film properties.(3)

ROPAQUE Opaque Polymer

A quality exterior acrylic flat formulation was chosen to study the effect of ROPAQUE Ultra opaque polymer on removing up to 50% of the TiO2 from a paint formulation. The starting formulation and the formulation with the highest opaque polymer level are given in Table 1.

Table 1 

PVC and volume solids were held constant at 49.5 and 34.8, respectively. Note that diatomaceous silica is introduced to maintain the sheen level of the starting formulation. The pigment and extender levels of the test formulation are given in Table 2. Through a 38% reduction in TiO2, performance was similar to the starting formulation. It was found that at higher opaque polymer levels, more diatomaceous silica was required to maintain sheen. However, the higher use level caused a small increase in burnish. The “A” samples have diatomaceous silica added at the rate of 1 PVC for every 5 PVC of opaque polymer. For the “B” samples, the rate is 1 PVC for every 2.5 PVC. At either level of diatomaceous silica, the opaque polymer formulations still have performance similar to the starting formulation, but with a different balance of sheen and burnish properties.

Table 2 

Through the highest levels of ROPAQUE Ultra opaque polymer, cracking and tint retention were maintained, and dirt pick-up resistance was improved after 34 months of exposure testing, as shown in Figure 4.

Opaque polymer can be used to replace up to half of the TiO2 in a flat formulation. In semigloss and satin formulations, up to 20% can be replaced as there is insufficient extender present to balance the gloss and sheen requirements. By replacing TiO2 and lowering its use level, opaque polymer can improve the average efficiency of the remaining TiO2 in the formulation. As a small pigment replacing larger extender, it can reduce the additional crowding effect caused by the large extender that is removed during the reformulation. However, opaque polymer does not directly affect the quality of the dispersion or distribution of TiO2 in the paint film.

EVOQUE Pre-Composite Polymer

Figure 4 

The EVOQUE pre-composite polymer increases TiO2 hiding efficiency while working in combination with opaque polymer to provide the most economic route to developing hiding in white and pastel paints. The pre-composite polymer is designed to interact with the TiO2 surface in such a way that the polymer adheres to the pigment surface. By placing polymer particles on the surface of TiO2, it is more difficult for the TiO2 particles to come in direct contact with each other. This effect can clearly be seen in Figure 2b, which shows a much more uniform distribution of TiO2 as compared to Figure 2a. This more uniform distribution leads to better utilization of the TiO2 and improvements in scattering efficiency. The improvements in scattering are seen in both wet and dry paints.

It also allows for better barrier properties in the paint film by minimizing the pigment-pigment interactions, which ultimately lead to porosity, percolation channels and defects in the film. The improvement in scattering efficiency is shown in Figure 1, which includes the scattering for normally dispersed (regular) TiO2 as well as TiO2 modified with the EVOQUE pre-composite polymer (composite). It should be noted that this approach is similar in concept to highly coated grades of TiO2. Unfortunately, the highly coated grades are lower in TiO2 content, which reduces their fundamental scattering per unit weight. Additionally, they are higher in binder demand than most grades, and it is difficult to use these grades without sacrificing performance properties. Thus the pre-composite polymer technology offers an improved approach to increasing TiO2 scattering efficiency while maintaining performance.

When reformulating to take advantage of EVOQUE pre-composite polymer, TiO2 can be reduced by 10-20%. Sufficient pre-composite polymer is added to the formulation to fully saturate the surface of TiO2 and facilitate good stabilization of the pigment-polymer composite. For typical combinations of TiO2 and pre-composite, that is about one pound of pre-composite polymer (46% TS) for each pound of TiO2 slurry (76.5% TS). The TiO2 slurry is usually added to the pre-composite polymer with good mixing to facilitate the formation of the pigment-polymer composite.


Table 3 

A semigloss paint was modified with pre-composite polymer, resulting in a 20% reduction in TiO2 as shown in Table 4. Since the TiO2 is stabilized by the pre-composite polymer, dispersant demand is reduced and less is required in the formulation. Additionally, less thickener is required, as the hydrodynamic volume of the pigment-polymer composite increases the inherent viscosity of the paint. In this case, no adjustments were made in the other pigments and extenders, and since volume solids was held constant, the total PVC decreased. Other formulation approaches could be used, such as maintaining total PVC with opaque polymer, to further reduce TiO2 level.

Table 4 

It can be seen that the pre-composite polymer technology allows for greater formulation flexibility by reducing TiO2, dispersant and thickener while opening up new options for opaque polymer and extender use while delivering equivalent hiding properties, as shown in Table 4. Pre-composite polymer is useful with all-acrylic binders, as shown in the example, as well as with styrene/acrylic, PVA and EVA latex binders. When replacing non-acrylic binders, the pre-composite polymer may provide films with more “acrylic-like” paint performance.

While the key advantage of EVOQUE pre-composite polymer is hiding efficiency, there are other possible performance benefits with this technology due to its improved pigment distribution. Barrier properties such as household stain removal and humidity resistance are just two examples. A side-by-side drawdown of a conventional paint vs. a composite version of the same paint is shown in Figure 5.

Figure 5 

Tea, coffee and grape juice were applied and allowed to penetrate the dried films for 60 min before they were rinsed with tap water. The central portion of the test panel was then washed with a non-abrasive cleaner for 200 cycles on a Gardner Scrub Machine. Notice how much cleaner the composite paint looks compared to its conventional counterpart. At the bottom of the photo, there is a test strip of lipstick, which also shows the improved stain removal.

The same two test paints were applied over cold rolled steel, allowed to dry for 7 days and then placed in a humidity chamber for 24 hours (Figure 6). Notice the composite paint on the right has fewer rust spots and less tarnishing/yellowing on the surface of the paint film. These performance enhancements observed with the composite paints can be attributed to the tighter films that are formed because of the better distribution of TiO2 particles in the paint film. Exposure testing on early research samples is demonstrating performance similar to the quality acrylic starting formulations that were modified with the pre-composite polymer technology.

Pigment Optimization Using Both Polymeric Hiding Technologies

A natural question when looking at the two polymeric hiding technologies discussed above is – which is best for my formulation? In most cases the answer is – both, in combination. Each delivers hiding to a paint formulation by different hiding mechanisms. For opaque polymer, hiding is directly delivered as it is a scattering pigment and its small particle size helps alleviate crowding of TiO2 caused by large extenders. Pre-composite polymer improves the hiding efficiency of TiO2 by allowing the pigment to be more uniformly distributed in the paint film, minimizing the crowding effect. This improvement in scattering efficiency from pre-composite is seen in both wet and dry paints.


Figure 6 

To illustrate the value of these polymeric hiding technologies, an eggshell architectural paint was reformulated using opaque polymer and pre-composite polymer, individually and in combination. The goal in this study was to match or exceed the hiding and gloss/sheen of the starting formulation while removing TiO2 from the formulation. The main ingredients of the formulations and key appearance properties are given in Table 5. Significant reductions in TiO2 are possible, and note that the reduction is nearly additive when using the polymeric technologies in combination. Once again, the hiding technologies can be used in combination because they contribute to hiding by two different mechanisms. The positive effect of the pre-composite polymer on wet hiding is evident especially when comparing the two paints with similar TiO2 levels [about 265 pounds of slurry TiO2 (76.5% TS)].


Table 5 

Conclusion

TiO2 is the predominant white pigment used in architectural coatings due to its outstanding light-scattering properties. However in white and pastel paints, the full scattering effect is lost due to crowding and less than ideal distribution. ROPAQUE opaque polymer and EVOQUE pre-composite polymer offer two distinct and complimentary approaches to reducing the use levels of TiO2 by as much as 50% while maintaining or increasing hiding. With reduced TiO2 levels other benefits are possible, such as reduced formulation cost, smaller environmental footprint and improved performance of both interior and exterior paints.

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Enhancing TiO2 dispersion performance

Polymer_chemistry 2016. 1. 30. 18:33

How to enhance TiO2 dispersion

TiO2's theoretical optimum particle size is between 0.2 and 0.3 microns, but as received is considerably larger mainly because of the formation of agglomerates in handling during the manufacturing process.

The energy of simply stirring pigment into water or binder is not great enough to overcome the particle attractive forces preventing the breakup of the agglomerates. The presence of these agglomerates adversely affects the hiding power, tinting strength and other end-use properties of the coating.

The graph below illustrates the effect of TiO2's dispersion states vs. particle size distribution on pigment properties:

The process of breaking down agglomerates, otherwise known as dispersion, occurs in 3 steps:

  1. Wetting - air and other substances are displaced from the pigment surface by solvent, dispersant / surfactant and binder
  2. Grinding - agglomerates of pigment particles are broken and separated into an optimum particle distribution
  3. Stabilization - separated particles are maintained by either charge or steric stabilization


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BEHR BOASTS NANOPARTICLE EXTERIOR COATINGS FAR SUPERIOR TO PRIME AND TOPCOAT SYSTEMS

Polymer_chemistry 2016. 1. 30. 18:26

BEHR BOASTS NANOPARTICLE EXTERIOR COATINGS FAR SUPERIOR TO PRIME AND TOPCOAT SYSTEMS

PATENT PAINTS BRIGHT FUTURE FOR NANO ZINC PIGMENTS

At 4 to 20 pounds of inorganic oxide nanoparticles per 100 gallons of exterior paint, Behr is sure to brighten the new year prospects of nano pigment manufacturers. Behr has developed a one coat system for the exterior of buildings that can replace the old prime and paint system with long lasting coatings that resists environmental degradation.

Nanophase’s proprietary nanoparticles are now being used in Behr’s Premium Plus Ultra paint. Nanophase’s nanoparticles not only lend the paint improved adhesion and anti-mildew properties, but also allow users to forgo the normal two-step priming and coating process. The new paint reportedly does both in a single step.

In U.S. Patent 7,642,309, Behr Process Corporation (Santa Ana, CA) reveals paints that provide coatings with improved properties such as, tannin blocking, hiding power, stain removal, corrosion resistance and which have high adhesion. Research results show it to be far superior to competing commercial products now on the market .

The formulations basically include two binders, a zinc oxide nanoparticle pigment, and pigmentary titanium dioxide, according to Behr inventors Ming-Ren Tarng, Mark Minamyer, Anh Pham, Stan Brownell, Annie Pham, Anil Alexander, Deven Shah, Kim L. Nguyen, My Linh Pham and Sidney Maxey, who detail a range of coating compositions with inorganic oxide nanoparticles in U.S. Patent 7,642,309.

All nano paint formulations exhibited improvements in adhesion, tannin blocking, stain removal, hiding power, color retention and corrosion resistance when compared to commercial products now on the market.

Nanoparticle-sized metal oxide pigments are used. According to Behr, in a general formulation, the paint is comprised of: an acrylic primer binder in an amount of 340 to 430 lbs per 100 gallons of paint; an acrylic topcoat binder in an amount of 70 to about 100 lbs per 100 gallons of paint; a styrene acrylic topcoat binder in an amount greater than 0 to 180 lbs per 100 gallons of paint; titanium dioxide in an amount greater than 0 to 350 lbs per 100 gallons of paint; zinc oxide in an amount greater than 0 to 7 lbs per 100 gallons of paint; and a nano particle inorganic oxide in an amount 4 to 20 lbs per 100 gallons of paint

FIG. 1 depicts a multi-axis property graph of the test results of Behr’s paint having a satin sheen and white base, as compared to commercially available exterior satin in a white base. 

FIG. 1 depicts a multi-axis property graph of the test results of paint of the present invention having a satin sheen and white base, as compared to commercially-available, exterior satin in a white base. Adhesion, yellowing, stain removal, hiding power, scrub resistance, corrosion, and tannin blocking were measured.

Paint Manufacturing 101

Traditionally consumers have had to choose between the superior durability offered by latex paints and the superior hiding properties of oil-based paint. Conventional latex or emulsion paints require an underlying primer coat prior to their application to provide an adequate level of blocking and to prevent bleed-through, such as of tannins.

In addition, many conventional latex paints require a primer coat to provide adequate adhesion and durability for specific applications. Often, even when a primer is applied, multiple coats of the prior art paints are required to prevent an alteration of color due to the presence of the primer or bleed through of dyes and pigments from the underlying substrate. In fact, multiple applications of prior art paint will not prevent bleed-through on substrates such as cedar since the dyes and pigments, such as tannins contained in the substrates, are often water soluble and diffuse through each layer of the latex paint.

Paint typically contains four essential ingredients, namely pigment, binder, liquid and additives. Any or all of these ingredients may be a single component or may comprise multiple items. Pigment provides color to paint and also makes paint opaque, and pigment is usually of mineral or organic origin although some pigments are artificially produced.

Some pigments possess little or no bulk and must be fixed on a more solid, but at the same time transparent, substance or base. "Prime" pigments provide color and opacity (opaque coverage). The most common prime pigment is titanium dioxide, which is white and is used in latex and oil-based paints.

Traditionally, pigments have also added hiding properties to paint. Specialty or extender pigments may also be used and provide bulk to the paint at a low cost. The extender pigments are often chosen for their impact on properties like scrub resistance, stain resistance and chalk resistance. Alum or clay are frequently used for this purpose.

These pigments are added to the paint to provide certain characteristics such as thickness, a certain level of gloss and durability. They are usually naturally occurring products which originally were in the earth and were mined and purified for use in paint. Such pigments as calcium carbonate, talc and clay are, for example, used extensively in paints.

The binder holds the pigment and also adheres it to a surface, and a binder composition may have more than one component. In latex paint, the latex resin is the binder. Most commonly in latex paint, the binder is 100% acrylic, vinyl acrylic (polyvinyl acetate), or styreneated acrylic.

The pigment particles are insoluble and merely form a suspension in the binder. The binder "binds" the pigment into a tough, continuous film and as noted above helps the paint adhere to the surface. In addition, it has been found previously that the use of 100% acrylic binder provides for maximum adhesion when wet and also provides for resistance to blistering and peeling, resistance to mildew and dirt, and alkali resistance for paint applied over fresh masonry.

Liquids carry the pigment and binders, and this liquid is the part of the paint or coatings product which evaporates. The role of the fluid is to keep the paint in a fluid form for ease of application. Once applied to the surface it evaporates leaving a uniform film which then dries to form a protective coating. The liquid used is primarily determined by the solubility of the binder. In oil-based and alkyd paints, the liquid is typically a paint thinner, and in latex paints, the liquid is typically water. Traditionally, top quality paints have less liquid and more solids (i.e. pigment & binders) as measured by percent solid.

Additives are ingredients used at low levels to provide key properties, such as but not limited to: mildew resistance, better flow and leveling, and splatter resistance. Common additives used in conventional paint formulations include rheology modifiers, surfactants, defoamers, coalescents, and biocides. Other numerous additives are well-known in the art and may be utilized as required to formulate a paint having the desired properties.

Various techniques are known in the art for producing paints having various types of sheens, i.e. "shine" or gloss. For example, by incrementally increasing pigment levels and/or by using larger pigment particles, various gloss levels can be achiev

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Maximizing hiding power with TiO2

Textile_auxiliary 2016. 1. 30. 18:14

Maximizing hiding power with TiO2


The main characteristics of TiO2 that influence hiding power are:

  • High refractive index
  • Optimized particle size

To achieve the full hiding power potential of TiO2 in coatings, the TiO2 must:

  • be well dispersed initially and
  • avoid particle re-agglomeration throughout coating production, storage, application and drying. Low hiding power in a coating can be caused by:

  • Inefficient Dispersion or Deagglomeration

  • Pigment Flocculation

Chemours™ TiO2 products are designed to facilitate easy dispersion and to be compatible with other coating components that might induce flocculation or re-agglomeration of the TiO2 particles.

For more information on how to achieve and maintain TiO2 dispersion in coatings, please refer to section Enhancing TiO2 dispersion performance.

Hiding Power is an optical property used to describe the light-scattering efficiency of a white pigment. The hiding power of a paint measures its ability to obscure a background of contrasting color. White pigments scatter incident visible light at all wavelengths whereas colored pigments absorb incident visible light at characteristic wavelengths.





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Opacity and tinting strength

Textile_auxiliary 2016. 1. 30. 18:00

The primary control of opacity and brightness in white paint films depends on the scattering of light. TiO2 is unique because it efficiently scatters visible light, thereby imparting whiteness, brightness and opacity when incorporated into a coating.

Curves in the chart below derived from theoretical considerations in highly dilute systems show the relative scattering power of rutile TiO2 for blue, green and red light as a function of particle size. At about 0.2 microns, the sum of light scattered at all wavelengths is maximized. When the particle size is increased to between 0.25 and 0.30 microns, the scattering of blue light decreases rapidly, but the scattering of green and red is relatively unchanged; however, at 0.15 microns, the diameter corresponding to maximum scattering of blue light, light scattering in the red and green regions drops markedly.

Figure 1: Relative Scattering Power of Rutile TiO2 vs. Particle Size 

In an ideal white film that is pigmented to complete hiding, changing pigment particle size has no effect on color since all the light striking the film is completely scattered. When a pigment such as carbon black is added to the white formula, red light with the longer path length now has a greater chance to be absorbed. As a consequence, the reflected hue appears bluer. Thus, in a paint film containing some light-absorbing matter, decreasing TiO2 particle size will increase blueness. This phenomenon is called undertone.

Color and undertone are sometimes confused. It is possible for a paint containing blue undertone TiO2 to have a yellow color because of one of the undesirable effects listed below:

  • Contamination - including abraded processing equipment, usually resulting from problems during the dispersion process.

  • Colored products of reactions of TiO2 with other paint ingredients such as phenolics, strong reducing agents, etc. Blue, purple or gray discoloration in oxygen-impermeable films exposed to ultraviolet radiation.

  • Excessive heat exposure - vehicle discoloration.

  • Inadequate hiding - show-through of substrate.


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국제단위

MyLife 2016. 1. 23. 17:08

SI단위에서 사용되는 10의 멱수배를 나타내는 접두어는 다음과 같다. 데시,센티, 데카, 헥토를 제외하면 모두 1,000 = 103의 배수로 나가는 것을 볼 수 있다. 또한 106 (백만) 이상에서는 접두어의 기호가 대문자임을 알 수 있다.


국제단위(SI)의 접두어

숫자

인자

접두어

기호

인자

접두어

기호

십

101

데카

da

10-1

데시

d

백

102

헥토

h

10-2

센티

c

천

103

킬로

k

10-3

밀리

m

백만

106

메가

M

10-6

마이크로

μ

십억

109

기가

G

10-9

나노

n

조

1012

테라

T

10-12

피코

p

천조

1015

페타

P

10-15

펨토

f

백경

1018

엑사

E

10-18

아토

a

십해

1021

제타

Z

10-21

젭토

z

자

1024

요타

Y

10-24

욕토

y



예를 들면 1백만 볼트는 1 MV(메가볼트)로, 천분의 1 볼트는 1 mV(밀리볼트)로 표기한다. 또 10억 미터는 1 Gm(기가미터)로, 10억분의 1 미터(백만분의 1 밀리미터)는 1 nm(나노미터)로 표기한다. 

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Posted by 겨울소나기

인명에서 유래한 단위명칭

MyLife 2016. 1. 23. 16:06


이름

출생-사망

국적

단위명칭

단위기호

물리량

비고

Ampere, A. M.

1775 - 1836

프랑스

암페어

A

전류

SI단위

Ångstrom, A. J.

1814 - 1874

스웨덴

옹스트롬

Å

길이

 

Baume, A.

1728 - 1804

프랑스

보메도

Be

비중

 

Becquerel, A. H.

1852 - 1903

프랑스

베크렐

Bq

방사능

SI단위

Bell, A. G.

1847 - 1922

미국

벨

B

음압레벨

 

Celcius, A.

1701 - 1744

스웨덴

섭씨도

℃

온도

SI단위

Coulomb, C. A.

1736 - 1806

프랑스

쿨롬

C

전기량

SI단위

Curie, P.

1859 - 1906

프랑스

퀴리

Ci

방사능

 

Fahrenheit, G. D.

1686 - 1736

독일

화씨도

℉

온도

 

Faraday, M.

1791 - 1867

영국

패럿

F

정전용량

 

Fermi, E.

1901 - 1954

이태리

페르미

fm

길이

 

Galilei, G.

1564 - 1642

이태리

갈

Gal

가속도

 

Gauss, K. F.

1777 - 1855

독일

가우스

Gs

자기선속밀도

 

Gilbert, W.

1544 - 1603

영국

길버트

Gi

기자력

 

Gray, L. H.

1905 - 1965

영국

그레이

Gy

흡수선량

SI단위

Henry, J.

1797 - 1878

미국

헨리

H

인덕턴스

SI단위

Hertz, H. R.

1857 - 1894

독일

헤르츠

Hz

주파수

SI단위

Jansky, K. G.

1905 - 1950

미국

잰스키

Jy

전파밀도

 

Joule, J. P.

1818 - 1889

영국

줄

J

에너지

SI단위

Kelvin, Lord(William Thomson)

1824 - 1907

영국

켈빈

K

온도

SI단위

Langley, S. P.

1834 - 1906

미국

랑그리

Ly

플루언스

 

Maxwell, J. C.

1831 - 1879

스코트랜드

맥스웰

Mx

자기선속

 

Neper (Napier), J.

1550 - 1617

스코트랜드

네파

Np

대수감쇠율

 

Newton, I.

1642 - 1727

영국

뉴턴

N

힘

SI단위

Oersted, H. C.

1777 - 1851

덴마크

에르스텟

Oe

자계강도

 

Ohm, G. S.

1787 - 1854

독일

옴

Ω

전기저항

SI단위

Pascal, B.

1623 - 1662

프랑스

파스칼

Pa

압력

SI단위

Poiseuille, J. L. M.

1799 - 1869

프랑스

푸아즈

P

점성계수

 

Rankine, W. J. M.

1820 - 1872

스코트랜드

랭킨도

R

온도

 

Roentgen, W. K.

1845 - 1923

독일

렌트겐

R

조사선량

 

Rydberg, J. R.

1854 - 1919

스웨덴

류드베리

Ry

감쇠계수

 

Siemens, K. W.

1823 - 1883

독일

지멘스

S

컨덕턴스

SI단위

Sievert, R.

1896 - 1966

독일

시버트

Sv

선량당량

SI단위

Stokes, G. G.

1819 - 1903

영국

스토크스

St

동점성계수

 

Tesla, N.

1856 - 1943

미국

테슬라

T

자기선속밀도

SI단위

Torricelli, E.

1608 - 1647

이태리

토르

Torr

압력

 

Twaddell, W.

    ? - 1840

스코트랜드

트와델도

 

비중

 

Volta, C. A.

1745 - 1827

이태리

볼트

V

전위차, 기전력

SI단위

Watt, J.

1736 - 1819

스코트랜드

와트

W

동력, 전력

SI단위

Weber, E. H.

1795 - 1878

독일

웨버

Wb

자기선속

SI단위

湯川秀樹(Yukawa, Hideki)

1907 - 1981

일본

유가와

Y

길이

 


저작자표시 비영리 변경금지

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솔벤트 효능 비교 평가

Textile_industry 2016. 1. 23. 14:48
###

quality performents of solvents_cinet.pdf

Professional Textile Cleaning;

2-3 times more sustainable compared to domestic textile cleaning

Published: 25/04/2012

Last year CINET commissioned a new benchmark study organized by the Dutch Technological Knowledge center Textile care (TKT) and conducted by the esteemed and independent Netherlands Organisation for Applied Scientific Research (TNO) from January until March 2012. The study compared the environmental impact of professional textile care including traditional and new alternative solvents with the domestic textile cleaning. The conclusion derived from the study is that “Professional Textile Cleaning based on the working methodology of E-Dryclean, has a 2 to 3 times lower impact on the environment than the average domestic washing process. TKT will present the results in more detail for members at CINET’s Global Info Square meeting during Texcare International (10.00hrs; Genius Room – Hall 9.1).

More alternative solvents The research includes a comparison of traditional solvents (Perc, Hydrocarbon) and alternative solvents (iPura, Siloxane D5, Rynex E3, Solvon K4 and wetcleaning) with domestic textile cleaning, looking at the environmental impact of the different cleaning methods. The study is an extension of a similar study conducted in 2011, but includes new alternative solvents Ipura, Rynex E3 and Solvon K4. The conclusion of the research is based on equal textile load and equal processes (cleaning / washing and drying), including the environmental effects coming from the production of the consumed resources, the generation of the energy consumed during cleaning and the emissions (water, solvent, detergent).

CINET the International Committee of Textile Care (CINET), is the umbrella organization pooling national textile care associations, research institutes, suppliers and PTC professionals worldwide. CINET´s international mission is to build a Global Network of industry experts and represent and promote the textile care industry. The global partnership of CINET consists of 48 members and 103 liaisons coming from 45 different countries.

다음의 내용은 네델란드 기술 연구소TKT의 연구결과를 국제 직물케어 연합회 (International Committee of Textile Care, CINET)에서 발표한 내용입니다.

유럽에서 실시한 솔벤트 효능 비교 평가

최근 연구에 따르면, 솔벤트 개발, 기계 테크놀로지, 세제들을 통하여, 드라이클리닝업계에 다양하고 좋은 퍼크 대안들이 가용하게 된 것으로 나타났다. 이 연구결과는 여러 국가들의 직물케어연합회들의 공동체인 국제직물케어연합회(International Committee of Textile Care, CINET)가 발표했다.

연구는 직물케어산업의 네델란드 기술 연구소, TKT 가 시행한 것으로, 8개 퍼크 대안들의 효능을 비교 분석했다. 현재 퍼크가 유럽과 북아메리카에서 현재 가장 널리 사용되고 있는 솔벤트이지만, “퍼크 사용에 대한 압력은 세계적으로 더욱 높아지고 있다… 그러므로, 훌륭한 퍼크 대안 개발은 드라이클리닝업계에 가장 중요한 사항”이라고 CINET는 지적했다.

“현실적인 상황 테스트”에 포함된 솔벤트 혹은 클리닝 방법들은 퍼크, HCS (하이드로카본), siloxane D5 (GreenEarth), 액화 CO2, 전문적wetcleaning, dibutoxymethane (SolvonK4), glycol ether (Rynex) 그리고D5와 하이드로 카본을 사용하는 iPura 과정 등이었다. 미국에서 DrySolv and Fabrisolv 라는 이름으로 판매되고 있는 N-Propyl Bromide는 이 연구에 포함되지 않았다.

테스트는 새로 구입한 의복과 직물들을 정규 작업시간대에 일반 세탁소에서 손님들의 의복과 함께 통상적인 드라이클리닝 과정으로 세번에 걸쳐 드라이클린했다. 그후 이 의복들을 통해 수축, 보풀, 스테인 제거, 노화(greying) 정도를 조사했다.

스테인 제거는 세척과정에서 단지 솔벤트의 효능만을 평가했다. 즉, 드라이클린 전후에 스팟팅을 하지 않았다. 평가는 하이드로카본을 100으로 하고 140 포인트 척도로 이루어졌다. 퍼크가 최고점인 140을 기록했고, Rynex가 두번째였다. SolvonK4는 120으로 하이드로카본 보다 높았다. GreenEarth 와 wetcleaning은 하이드로카본과 비슷한 점수를 기록했다. iPura 과정의 경우, 하이드로카본을 사용한 경우가 GreenEarth를 사용한 경우 보다 우수했으며, 대략 70과 50을 각각 기록했다. 가장 낮은 것은 액화 CO2로 20을 기록했다.

“스테인 제거의 경우 퍼크가 여전히 가장 뛰어났다. iPura 과정이 wetcleaning 보다 약간 우수하기는 했지만, 큰 차이는 아니었다”고 연구는 지적했다.
CO2가 스테인 제거면에서는 뒤졌지만, 시험대상 직물(fabric)을 세번 클린한 후 측정한 수축면에서는 모직(wool)과 면(cotton) 모두에서 0.5% 이하를 보임으로써 가장 우수했다. 반면에 wetcleaning은 모직의 경우 거의 5%, 면의 경우 3.5%로 가장 나쁜 결과를 보였다.
다른 솔벤트와 클리닝 과정은 면의 경우 0.5 %에서 1%를 약간 상회하고, 모직의 경우 0.5%에서 2.5%의 수축 범위를 기록했다.

시험 의복(garments)의 수축 평가에서도 역시 CO2가 가장 우수했으며, wetcleaning이 2%로 가장 높은 수축도를 보였다. Wetcleaning의 높은 수축 비율은 시험 의복 중 100% 울스웨터가 주원인이었다. 울스웨터를 제외하면, wetcleaning의 결과는 다른 솔벤트와 클린과정이 기록한 1% 이하에 보다 근접했을 것이다.

수축 측정은 마무리 과정을 거치지 않고 클리닝 과정 직후에 시행했다. 마무리과정은 수축 결과에 영향을 미칠 수 있으며, wetcleaning 의 경우 특히 그렇다. 시험 모직과 면 직물을 통해 또한 노화(greying) 정도를 검사했다. 결과는 일반적으로 비슷했다. 하이드로카본을 사용한 iPura 과정이 가장 심한 노화 현상을 보였으며, wetcleaning 이 가장 덜했다.

주름 발생(wrinkling)은 단지 wetcleaning 과정에서 남자 양복에서만 문제가 된 것으로 나타났다. 하지만 주름은 “깊지 않아(shallow)” 마무리 단계에서 쉽게 제거할 수 있었다.
“보풀이 생기는 것과 표면이 꺼칠해지는 것(roughening)은 측정이 어려워, 시각적 관찰에 의존할 수 밖에 없다”고 연구는 지적했다. “예상했듯이, 약간의 보풀과 표면이 꺼칠해지는 현상이 wetcleaning을 한 (100% 울) 스웨터에서 나타났다. GreenEarth는 건조 시간이 길기 때문에 표면이 약간 거칠어 지는 현상을 나타냈다. 그 밖의 다른 과정에서는 보풀 발생이 관찰되지 않았다.”

연구에 따르면, 테스트한 모든 솔벤트와 클린과정에서 변색은 발생하지 않았다. 하지만 연구는 wetcleaning후에 남자 양복의 윤택이 줄었다고 지적했다. K4와 Rynex의 경우 지퍼를 열고 닫는 것이 약간 힘들어졌다고 지적되었다.

냄새의 결과를 보면 “결과를 분석한 시기(의복을 클린하고 마무리 과정을 거치고 수일이 경과한 후)에 의복에서 어떠한 냄새도 거의 검출할 수 없었다”고 연구보고는 기술했다. “테스트 결과를 긴 안목으로 본다면, 퍼크(퍼크 보다는 덜하지만 하이드로카본 역시)는 클리닝 기술로서 완숙해져서 지난 15년 동안 인상적인 변화를 이루지 않은 것으로 예상된다. 이 두가지는 이미 확립된 클리닝 기술로, wetcleaning과 솔벤트를 기반으로 한 다른 기술들을 이 두가지와 비교하였다”고 연구보고는 설명했다.

CINET 보고서는 새로운 기술을 개관하면서 다음과 같이 지적했다:

Glycol ether (Rynex)는 스테인제거와 노화면에서 우수한 효능을 보였지만, 퍼크와 하이드로카본 보다 노화면에서는 뒤졌다. 스테인제거면에서는 퍼크와 필적할 만 했으며, 수축면에서도 퍼크와 하이드로카본과 거의 대등했다. 보풀이 생기는 것과 표면이 꺼칠해지는 현상은 시험직물에서 거의 나타나지 않았다. “이 솔벤트는 약간 오래된 여러가지 솔벤트를 사용할 수 있는 드라이클리닝 기계를 사용하여 시험했다. 이 기계는 건조 과정이 최적화되지 않은 기계라는 점을 유의해야 할 것”이라고 보고서는 지적했다.

Siloxane D5(GreenEarth)는 앞으로 더 개선되어야 할 것으로 예상된다. 퍼크나 하이드로카본 보다 휘발성이 낮은 성질때문에, 이 솔벤트의 건조과정이 개선되어야 할 것이다. “건조시간이 길기 때문에 직물에 대한 손상이 퍼크나 하이드로카본 보다 약간 더 심한 경향이 있다. 수축이나 스테인제거 면에서는 GreenEarth의 전반적인 효능은 우수해서, 퍼크와 하이드로카본에 필적할 만하다”고 보고서는 평가했다.

GreenEarth 혹은 하이드로카본을 사용하는 iPura 과정은 “기계에 솔벤트를 적게 사용하고 에너지를 절약하기때문에 기술적인 면에서 흥미롭다”고 보고서는 지적했다. iPura 과정은 수축면에서 퍼크나 하이드로카본과 대등하거나 더 우수한 것으로 나타났지만, “스테인 제거면에서는 뚜렸하게 뒤졌다. 또한 하이드로카본을 사용한 iPura 과정은 ‘다소 높은 노화현상’을 일으켰다”고 보고서는 지적했다.

CO2는 “스테인 제거와 노화 면에서 다른 기술에 현저히 뒤져서, 이런한 면의 역할을 하는 세제의 개선이 강력히 요구된다. 의복의 케어면에서는 액화CO2는 매우 뛰어난 효능을 보였다”고 연구보고서는 기술했다.

Dibutoxymethane (Solvon K4)는 스테인 제거면에서 퍼크와 거의 같은 수준의 효능을 보였다. 시험직물의 수축면에서, Solvon K4는 면의 경우는 퍼크와 하이드로카본 보다 약간 높았지만, 모직(wool)의 경우에서는 이들 보다 낮았다. 의복의 경우, 평균 수축도는 퍼크와 하이드로카본과 대등했다. 노화면에서는 면의 경우 퍼크와 하이드로카본과 대등했지만, 모직의 경우는 약간 높았다. 보풀이생기는것과 표면이 꺼칠해지는 현상은 시험직물에서 거의 나타나지 않았다. “솔벤트(Solvon K4)가 자연에서 분해된다는 주장은 참신한 것으로 흥미롭다”고 보고서는 지적했다.

Wetcleaning은 기계기술, 건조기술, 세제면에서 지난 20여년 동안 많은 개선이 이루어졌다. 스테인제거면에서는 무극성(non-polar) 솔벤트와 비교하면 다른 측면을 보이지만, 전체적인 점수는 하이드로카본에 필적할 만하다. 다시 말해서, 솔벤트를 기반으로 한 드라이클리닝 기술과 비교해서 다른 세탁 전 후 스팟팅이 요구된다. 털실로 짠 의복들은 수축과 보풀, 표면 손상 등의 이유로 wetcleaning에 적절하지 않지만, 솔벤트를 이용한 클리닝과 비교해서 클리닝 직후 다소 수축현상을 보인 그 밖의 의복들은 마무리 과정에서 해결할수 있었다고, 보고서는 지적했다.

현재 드라이클리닝업계는 다양한 퍼크 대안을 선택할 수 있게 되었다고 보고서는 결론지었다. “퍼크를 대체할 수 있는 솔벤트와 기계기술들은 손님들의 의복들을 모두 취급할 수 있으며, 효능은 퍼크에 필적할 만하지만, 퍼크보다 환경친화적인 세탁소라는 인상을 줄 수 있다. 이는 품질과 서비스를 낮추지 않고서도 세탁업계의 이미지와 지속성을 개선하는데 다양한 선택의 여지를 제공하고 있다”고 보고서는 결론을 내렸다.


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분산염료-알러지

카테고리 없음 2016. 1. 21. 18:34

Is Contact Allergy to Disperse Dyes and Related Substances Associated With Textile Dermatitis?

Abstract

Background: Disperse dyes (DDs) are the most common sensitizers among textile dyes, but there is little knowledge of the clinical relevance of positive patch test reactions. Objective: To investigate if patient-reported textile-related skin problems can be explained by contact allergy to eight different DDs and/or to chemically related substances, by occupation or by atopic constitution, and if the skin problems are influenced by age or sex. Methods: A questionnaire on textile-related skin problems was answered by 858 of 982 consecutively patch tested patients in Malmö, Sweden and in Leuven, Belgium. The baseline series used for patch testing was supplemented with a textile dye mix (TDM) consisting of the eight DDs and with the separate dyes. The association between textile-related skin problems and contact allergy to the DDs and other risk factors was investigated using multiple logistic regression analysis. Results: Eighteen per cent of the patients suspected textiles as a cause of their skin problems. Atopic constitution and female sex were risk factors for skin reactions. Synthetic materials were the most common textiles to give skin problems. A significant association was found between self-reported textile-related skin problems and contact allergy to para-phenylenediamine (PPD) [adjusted odds ratio (OR) 2.1; 95% confidence interval (CI) 1.0-4.3]. A similar, but more imprecise, adjusted OR was found for TDM (OR 1.9; 95% CI 0.57-5.6). Contact allergy to black rubber mix was too rare to be evaluated. Conclusions: Contact allergy to PPD was a more prevalent indicator for skin reactions to textiles than the TDM used in this study.

Introduction

Textile dermatitis, i.e. skin manifestations due to clothing and other textiles, can be caused by irritant reactions to textile fibres or by contact allergy to textile dyes and finishing chemicals.[1-3] The prevalence of textile dermatitis in various countries is not known. Disperse dyes (DDs) are the most common sensitizers among textile dyes, but contact allergy to DDs may go undiagnosed because the clinical picture does not give rise to suspicion of textile dermatitis.[4] Some DDs known to cause contact allergy are included in textile patch test screening series but not in commercially available baseline patch test series,[5,6] whereas para-phenylenediamine (PPD), which historically has been considered to be a screening allergen for textile dye dermatitis,[7] is included in most baseline patch test series.

In a previous study we found that contact allergy to DDs is quite common in Sweden, with 1.5% of 3325 consecutively patch tested patients reacting positively to a textile dye mix (TDM) consisting of eight DDs: Disperse Blue (DB) 35, 106 and 124; Disperse Yellow (DY) 3; Disperse Orange (DO) 1 and 3; and Disperse Red (DR) 1 and 17.[8] As this study was retrospective, information about the clinical relevance of a positive TDM patch test reaction was not always available.

The aim of the present study was to investigate if clinical signs or symptoms suspected of being caused by textiles could be explained by contact allergy to the TDM and/or to chemically related substances, such as PPD and black rubber mix (BRM), or by other factors, such as occupation or atopic constitution. Furthermore, we wanted to clarify which types of textiles and on which areas of the body the patients experienced their problems and if skin problems from textiles could be influenced by age or sex. Factors possibly related to skin problems from textiles, investigated in the present study are shown in Figure 1.



Possible associations between factors related to skin problems from textiles as investigated in the present study. BRM = black rubber mix; DDs = disperse dyes; PPD = para-phenylenediamine; TDM = textile dye mix.

Material and Methods

Study Population

The study population consisted of 982 patients with dermatitis, consecutively patch tested at the Department of Occupational and Environmental Dermatology, Malmö University Hospital, Malmö, Sweden from February to December 2005, and at the Department of Dermatology, Contact Allergy Unit, University Hospital, K.U. Leuven, Belgium from August 2004 to November 2005. A total of 858 patients answered a questionnaire and were patch tested. The remaining 124 patients were not asked to answer the questionnaire because of a high workload during consultation hours. Demographic data on all the patch tested patients are shown in .

Table 1. Demographic Data on All Patch Tested Patients (PT) Who Answered the Questionnaire (Q) and Those Who Were Only Patch Tested

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EditPlus3를 이용 중복줄을 제거하는 방법

MyLife 2016. 1. 4. 14:29

EditPlus3를 이용 중복줄을 제거하는 방법

  1. EditPlus3를 실행하여 중복 라인을 제거할 파일을 불러온다.
  2. 상단 메뉴의 편집 - 지우기 - 중복된 줄 지우기를 선택한다.

관련게시물: EditPlus: 메모장 대체용 다기능 텍스트 편집기
EditPlus3 다운로드(30일 평가판): http://www.editplus.com/kr/download.html

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