《BS 2087-1-1992.pdf》由会员分享，可在线阅读，更多相关《BS 2087-1-1992.pdf（18页珍藏版）》请在三一文库上搜索。
1、BRITISH STANDARD BS 2087-1: 1992 Preservative textile treatments Part 1: Specification for treatments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2087-1:1992 This British Standard, having been prepared under the direction of the Texti
2、les and Clothing Standards Policy Committee, was published under the authority of the Standards Board and comes into effect on 15 June 1992 BSI 04-1999 First published as BS 2087, February 1954 Second edition September 1963 Third edition March 1971 Fourth edition as BS 2087-1, September 1981 Fifth e
3、dition June 1992 The following BSI references relate to the work on this standard: Committee reference TCM/22 Draft for comment 91/37617 DC ISBN 0 580 20777 3 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Textiles and Clothing Standard
4、s Policy Committee (TCM/-) to Technical Committee TCM/22, upon which the following bodies were represented: Association of Heavy Textile Proofers of Great Britain British Narrow Fabrics Association British Textile Technology Group British Wood Preserving and Damp-proofing Association Chemical Indust
5、ries Association Health and Safety Executive International Wool Secretariat Ministry of Defence Society of Dyers and Colourists Textile Finishers Association Amendments issued since publication Amd. No.DateComments Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncon
6、trolled Copy, (c) BSI BS 2087-1:1992 BSI 04-1999i Contents Page Committees responsibleInside front cover Forewordii 1Scope1 2Definition1 3Choice of treatment1 4Preservative agents, methods of application and levels of preservative content: class A processes1 5Preservative agents, methods of applicat
7、ion and levels of preservative content: class B process: OPP process5 6Marking5 Appendix A Textile preservative processes6 Appendix B Advice to sponsors of new preservative agents or processes10 Table 1 Guide to selection of processes8 Publications referred toInside back cover Licensed Copy: sheffie
8、ldun sheffieldun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2087-1:1992 ii BSI 04-1999 Foreword This Part of BS 2087 has been prepared under the direction of the Textiles and Clothing Standards Policy Committee and is a revision of BS 2087-1:1981, which is withdrawn. BS 2
9、087 is published in two Parts as follows. Part 1: Specification for treatments; Part 2: Methods of test. Whether in storage or in use, most textile materials are liable to suffer damage by reason of adverse influences or conditions comprising the following: a) mechanical damage, i.e. wear by rubbing
10、, tearing, abrasion, wind, etc; b) photochemical or sunlight attack and weathering in both dry and wet conditions, in clean or in industrial atmospheres where in the latter instance direct chemical attack may occur; c) microbiological attack by fungi, bacteria, etc. under damp conditions; d) insect
11、attack, especially in the tropics; e) heat damage, i.e. prolonged dry heat and excessively high temperatures; f) chemical attack by corrosive materials such as acids, alkalis and oxidizing agents. The principal forms of attack dealt with in this British Standard comprise only the biological and phot
12、ochemical types for which the ideal criteria of any preservative process may be classified as follows. 1) The initial handle of the textile and also its tensile and tear strengths should not be affected adversely. 2) The required shade or colour should be attainable and should be as resistant as pos
13、sible to change, fading, etc., during use, other than by normal soiling. 3) The preservative treatment should meet the performance criteria agreed between the purchaser and the vendor and meet the relevant requirements of BS 6085. 4) The preservative treatment should not accelerate attack on the tex
14、tile by other adverse influences and should not have adverse effects upon other materials in close proximity. 5) The preservative treatment should be compatible with other necessary treatments. At the present time no treatments are known which impart complete protection nor which are without some di
15、sadvantage. The extent to which textiles may be damaged biologically and/or photochemically depends upon the intrinsic properties of the textiles themselves, the conditions of use, or storage and upon the nature of the preservative treatment(s) applied to them. For example, a treatment intended to c
16、onfer colour may, at the same time, cause chemical deterioration, and one intended to confer rot resistance may tend to accelerate the damaging effect of sunlight. Numerous treatments have been developed for the protection of textiles from damage resulting from adverse influences or conditions, and
17、new treatments are frequently put forward. As in the previous edition of this standard, two categories of preservative treatments, A and B, are incorporated. Those included in class A have found general acceptance by textile finishers and proofers, specifying authorities and the like. In this editio
18、n five treatments have been deleted from and two new agents added to the class A list. Treatments of merit which still have to find general acceptance are included in class B. In this edition four additional treatments have been included in and two deleted from the class B list. Although individual
19、treatments are specified, it is often advantageous to apply two or more treatments provided they are mutually compatible and are acceptable to the purchaser. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2087-1:1992 BSI 04-1999iii Appen
20、dix A, which may serve as a guide, gives information based upon experience in the use and properties of these treatments. The information given may not be generally applicable in all cases and the greatest care should be exercised in interpreting the notes given in this appendix, because of the vari
21、ation in characteristics and properties between one textile material and another, and the differences in behaviour they may show even under similar conditions. Especially it is important to bear in mind the possibility of adverse interactions occurring between the treated textile and other materials
22、 in contact. Appendix B is included for the information of manufacturers wishing to sponsor new treatments. Attention is drawn to BS 4797 and to BS 6085. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their co
23、rrect application. Compliance with a British Standard does not of itself confer immunity from legal obligations. In particular attention is drawn to section 6 of the Health and Safety at Work etc. Act 1974, and the Environmental Protection Act 1990. Summary of pages This document comprises a front c
24、over, an inside front cover, pages i to iv, pages 1 to 10, an inside back cover and a back cover. This standard has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover. Licensed Copy: sheffieldun sheffiel
25、dun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iv blank Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 02:22:16 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2087-1:1992 BSI 04-19991 1 Scope This Part of BS 2087 specifies treatments (i.e. agents, methods of applicati
26、on and levels) for application to textiles which will afford some protection against one or more of the following: attack by fungi; bacteria and insects; and degradation caused by the action of weathering and of sunlight. The materials and processes are divided into two classes. Class A processes ha
27、ve been generally accepted and have had wide use for some time. Class B processes, although of recognized merit in certain restricted fields, are not yet sufficiently accepted generally for textiles to warrant inclusion in class A. Quantitative methods of test are given in BS 2087-2. NOTEThe titles
28、of the publications referred to in this standard are listed on the inside back cover. 2 Definition For the purposes of this British Standard, the following definition applies. 2.1 stitch finish a finish applied to yarns and/or fabrics to facilitate the movement of the sewing thread and/or the penetr
29、ation of the needle through the material NOTE 1The object of imparting stitch finish is to reduce damage to fabrics and sewing threads and to avoid the overheating of the sewing needle. NOTE 2Stitch finishes involve the application of lubricants. They are frequently applied to closely woven fabrics
30、such as collar cloth and shoe canvasses, to fabrics containing filling material of an abrasive nature such as metallic oxides, and to fabrics which may be embrittled by chemical or other finishing treatments. 3 Choice of treatment When textiles are required to be treated with one or more processes i
31、n accordance with this British Standard, the protective treatment(s) to be applied shall be fully documented by name in the order or contract. NOTE 1Reference to clause numbers, etc., alone is not acceptable. Some of the processes referred to in this standard include more than one level of protectiv
32、e treatment; unless the contract directs otherwise, the level designated to NORMAL shall be applied. NOTE 2In cases where more than one preservative agent is used, analytical methods should be agreed between the purchaser and the supplier. More than one preservative agent can be used provided they a
33、re mutually compatible and acceptable to the purchaser. The pH of an aqueous extract of the treated textile shall be not less than 5 nor greater than 8 and the treated textile shall contain not more than 0.10 % water soluble chlorides, calculated as NaCl, and not more than 0.25 % water soluble sulfa
34、tes calculated as Na2SO4 when tested in accordance with method 1 of BS 2087-2. NOTE 3Method 2 of BS 2087-2 describes procedures for determination of solvent soluble matter. 4 Preservative agents, methods of application and levels of preservative content: class A processes 4.1 Zinc naphthenate pocess
35、 4.1.1 Preservative agent The preservative agent shall consist of zinc naphthenate which complies with BS 3770. 4.1.2 Application The process shall consist of an even and thorough impregnation of the textile with either: a) a solution of the agent, in which case the solvent shall comply with BS 245;
36、 or b) an emulsion of the agent. This shall be followed by removal of excess and subsequent thorough removal of solvent or water.The treated textile shall be dry in handle and non-tacky. 4.1.3 Amount of preservative agent The zinc content of the treated textile shall be not less than 0.8 % and not g
37、reater than 1.2 % when calculated as Zn in accordance with method 3 of BS 2087-2. 4.2 Copper naphthenate process 4.2.1 Preservative agent The preservative agent shall consist of copper naphthenate which complies with BS 3769. 4.2.2 Application The process shall consist of an even and thorough impreg
38、nation of the textile with either: a) a solvent solution of the agent, in which case the solvent shall comply with BS 245; or b) an emulsion of the agent. This shall be followed by removal of the excess and subsequent thorough removal of solvent or water. The treated textile shall be dry in handle a
39、nd non-tacky. NOTEWhere water repellent processing is to be simultaneously or subsequently applied, care should be exercised in selecting emulsifying methods to be used which do not impair the degree of water repellency finally required. Licensed Copy: sheffieldun sheffieldun, na, Wed Nov 29 02:22:1
40、6 GMT+00:00 2006, Uncontrolled Copy, (c) BSI BS 2087-1:1992 2 BSI 04-1999 4.2.3 Amount of preservative agent The copper content of the treated textile shall be not less than 0.5 % nor greater than 1.2 % when calculated as Cu in accordance with method 4 of BS 2087-2. 4.3 Cuprammonium processes 4.3.1
41、Preservative agent NOTEThe cuprammonium complex may be prepared generally by the methods described in 4.3.1.1 or 4.3.1.2. 4.3.1.1 Cuprammonium hydroxide (CA) or CA finish The preservative agent shall be obtained by dissolving copper in ammonia solution in the presence of air, or by dissolving cupric
42、 hydroxide in ammonia solution. NOTEAccording to the copper concentration these liquors may gelatinize the surface layers of cellulosic textiles as well as depositing the cuprammonium complex to yield finishes in which the copper is well bound. 4.3.1.2 Cuprammonium salts Cuprammonium salts shall be
43、prepared by adding excess ammonia liquor to solutions of copper salts. NOTE 1Such solutions may have little or no gelatinizing power and unless carefully made, and carefully applied, may yield finishes in which the copper is not particularly well bound. NOTE 2Ammonium salts are also deposited with t
44、he cuprammonium complex and may prove chemically adverse subsequently. 4.3.2 Application The process shall consist of an even and thorough impregnation of the textile with the preservative liquor at room temperature followed by removal of excess and subsequent careful drying. NOTESubsequent washing
45、may be required where cuprammonium salts are used. To comply with clause 3, washing is not necessary subsequent to the application of cuprammonium hydroxide (CA). Any stitch finish applied shall comply with 4.3.4. 4.3.3 Amount of preservative agent The amount of preservative agent shall be as follow
46、s. a) Normal process. The copper content of the treated textile shall be not less than 1.0 % nor greater than 1.5 % when calculated as Cu in accordance with method 4 of BS 2087-2. b) Special process. The copper content of the treated textile shall be not less than 0.5 % nor greater than 1.0 % when c
47、alculated as Cu in accordance with method 4 of BS 2087-2. This treatment is suitable where subsequent finishes are applied which are to contain preservative agents (see method 4 of BS 2087-2). 4.3.4 Amount of stitch finish The stitch finish shall be based on paraffin wax, and the solvent soluble mat
48、ter shall be not less than 0.5 % nor greater than 5 % (see method 2 of BS 2087-2). 4.4 Mineral khaki process 4.4.1 Preservative agent The preservative agent shall consist of a mixture of insoluble hydrated oxides of iron and chromium. 4.4.2 Application The process shall consist firstly of an even an
49、d thorough impregnation of the textile with a solution of iron and chromium salts followed by removal of excess. Deposition of the insoluble hydrated oxides shall be by immersion in an alkaline solution, followed by thorough washing out of soluble by-products and of excess alkali and then drying. A final stitch finish shall be applied. 4.4.3 Amount of preservative agent The amount of preservative agent shall be as follows. a) Normal process. The iron content of the treated textile shall be not less than 0.5 % nor greater than 2.0 % when calculated as Fe and the chromium c