1、BS EN ISO11643:2009ICS 59.140.30NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBRITISH STANDARDLeather Testsfor colour fastness Colour fastnessof small samplesto solvents (ISO11643:2009)This British Standardwas published under theauthority of the StandardsPolicy and StrategyCo
2、mmittee on 30 June2009. BSI 2009ISBN 978 0 580 58263 9Amendments/corrigenda issued since publicationDate CommentsBS EN ISO 11643:2009National forewordThis British Standard is the UK implementation of EN ISO 11643:2009.It supersedes BS EN ISO 11643:1998 which is withdrawn.The UK participation in its
3、preparation was entrusted to TechnicalCommittee TCI/69, Footwear, leather and coated fabrics.A list of organizations represented on this committee can be obtained onrequest to its secretary.This publication does not purport to include all the necessary provisionsof a contract. Users are responsible
4、for its correct application.Compliance with a British Standard cannot confer immunityfrom legal obligations.EUROPEAN STANDARDNORME EUROPENNEEUROPISCHE NORMEN ISO 11643May 2009ICS 59.140.30 Supersedes EN ISO 11643:1998 English VersionLeather - Tests for colour fastness - Colour fastness of smallsampl
5、es to solvents (ISO 11643:2009)Cuir - Essais de solidit des teintures - Solidit desteintures de petits chantillons aux solvants (ISO11643:2009)Leder - Farbechtheitsprfungen - Farbechtheit kleinerProben gegenber Lsemitteln (ISO 11643:2008)This European Standard was approved by CEN on 6 May 2009.CEN m
6、embers are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this EuropeanStandard the status of a national standard without any alteration. Up-to-date lists and bibliographical references concerning such nationalstandards may be obtained on applicat
7、ion to the CEN Management Centre or to any CEN member.This European Standard exists in three official versions (English, French, German). A version in any other language made by translationunder the responsibility of a CEN member into its own language and notified to the CEN Management Centre has th
8、e same status as theofficial versions.CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland,France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal,
9、Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom.EUROPEAN COMMITTEE FOR STANDARDIZATIONCOMIT EUROPEN DE NORMALISATIONEUROPISCHES KOMITEE FR NORMUNGManagement Centre: Avenue Marnix 17, B-1000 Brussels 2009 CEN All rights of exploitation in any form and by any means reservedw
10、orldwide for CEN national Members.Ref. No. EN ISO 11643:2009: EBS EN ISO 11643:2009EN ISO 11643:2009 (E) 3 Foreword This document (EN ISO 11643:2009) has been prepared by Technical Committee CEN/TC 289 “Leather”, the secretariat of which is held by UNI, in collaboration with Technical Committee ISO/
11、TC IULTCS “International Union of Leather Technologists and Chemists Societies“. This European Standard shall be given the status of a national standard, either by publication of an identical text or by endorsement, at the latest by November 2009, and conflicting national standards shall be withdraw
12、n at the latest by November 2009. Attention is drawn to the possibility that some of the elements of this document may be the subject of patent rights. CEN and/or CENELEC shall not be held responsible for identifying any or all such patent rights. This document supersedes EN ISO 11643:1998. Accordin
13、g to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia,
14、Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Romania, Slovakia, Slovenia, Spain, Sweden, Switzerland and the United Kingdom. BS EN ISO 11643:2009ISO 11643:2009(E) IULTCS/IUF 434:2009(E) ISO 2009 All rights reserved iiiContents Page Foreword iv Introduction v 1 Scope 1 2 Norma
15、tive references 1 3 Principle1 4 Apparatus and materials.2 5 Test specimen2 6 Procedure .3 7 Test report 4 Annex A (informative) Preparation of dry-cleaning solution containing a detergent 5 Annex B (informative) Commercial sources for apparatus and materials 6 BS EN ISO 11643:2009ISO 11643:2009(E)
16、IULTCS/IUF 434:2009(E) iv ISO 2009 All rights reservedForeword ISO (the International Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees.
17、Each member body interested in a subject for which a technical committee has been established has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the Internat
18、ional Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 2. The main task of technical committees is to prepare International Standards. Draft International Stand
19、ards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least 75 % of the member bodies casting a vote. Attention is drawn to the possibility that some of the elements of this document may be the subjec
20、t of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 11643/IUF 434 was prepared by the European Committee for Standardization (CEN) Technical Committee CEN/TC 289, Leather, in collaboration with the Fastness Tests Commission of the International Un
21、ion of Leather Technologists and Chemists Societies (IUF Commision, IULTCS), in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). It is based on IUF 434 published in J. Soc. Leather Tech. Chem., 75, pp. 30-32, 1991, and was declared an official method of
22、the IULTCS in September 1991. IULTCS, originally formed in 1897, is a world-wide organization of professional leather societies to further the advancement of leather science and technology. IULTCS has three Commissions, which are responsible for establishing international methods for the sampling an
23、d testing of leather. ISO recognizes IULTCS as an international standardizing body for the preparation of test methods for leather. This second edition cancels and replaces the first edition (ISO 11643:1993), which has been technically revised. The change in the title, from Leather Tests for colour
24、fastness Colour fastness of small samples to dry-cleaning solutions to Leather Tests for colour fastness Colour fastness of small samples to solvents, reflects the changes in the technology of dry cleaning from solvent-based to water-based processes. This edition includes an option to use a petroleu
25、m hydrocarbon solvent. BS EN ISO 11643:2009ISO 11643:2009(E) IULTCS/IUF 434:2009(E) ISO 2009 All rights reserved vIntroduction The testing of leather to determine its colour fastness to solvents can be done in several ways to achieve different aims. Small leather samples can be tested to assess the
26、fastness to solvents of leather dyes and finishes, or of the finished leather itself. The test method specified in this International Standard covers only the testing of small leather samples, in the absence of any other materials (accessories, adhesives, etc.), that can influence the cleanability w
27、ith solvents of the finished article. Moreover, it does not consider changes in leather properties, such as the handling characteristics or area stability, as the samples are too small. It must not therefore be used to provide guidance as to the process to be employed for cleaning or spot and stain
28、removal with solvents on complete garments. Part of the colour of leather is due to the oil content. When treated with solvents some of the colour change is due to the loss of oil into the solvent. The objective of the treatment with triolein is to restore the colour due to changes in the oil conten
29、t of the leather. The method with one level of triolein can give a guideline for re-oiling. Since different leathers can have different oil contents, a range of re-oiling tests would be necessary to establish the correct re-oiling level. BS EN ISO 11643:2009BS EN ISO 11643:2009INTERNATIONAL STANDARD
30、 ISO 11643:2009(E)IULTCS/IUF 434:2009(E) ISO 2009 All rights reserved 1Leather Tests for colour fastness Colour fastness of small samples to solvents 1 Scope This International Standard specifies a method for determining the resistance to solvent solutions of the colour and finish of unused, and not
31、 yet cleaned, leather. It does not cover composite materials or complete leather garments. It is not intended to be used to give any guidance on the process to be employed for cleaning garments. During the test, the colour of the leather can change and the adjacent fabric used can become stained. Ad
32、ditionally, the finish of the leather can be damaged. The presence of absorbed water in the leather, adjacent fabric or solvent has not been found to be a critical factor in assessing the colour fastness. 2 Normative references The following referenced documents are indispensable for the application
33、 of this document. For dated references, only the edition cited applies. For undated references, the latest edition of the referenced document (including any amendments) applies. ISO 105-A02, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour ISO 105-A03, Textiles
34、 Tests for colour fastness Part A03: Grey scale for assessing staining ISO 105-A04, Textiles Tests for colour fastness Part A04: Method for the instrumental assessment of the degree of staining of adjacent fabrics ISO 105-A05, Textiles Tests for colour fastness Part A05: Instrumental assessment of c
35、hange in colour for determination of grey scale rating ISO 105-F10:1989, Textiles Tests for colour fastness Part F10: Specification for adjacent fabric: Multifibre 3 Principle A composite specimen of the leather and an adjacent fabric is agitated, together with PTFE rods, in a solvent, which may con
36、tain triolein (and possibly a detergent), then squeezed and dried at ambient temperature. The change in colour of the specimen and staining of the adjacent fabric are assessed with the grey scales and (if applicable) any changes in the finish are noted. BS EN ISO 11643:2009ISO 11643:2009(E) IULTCS/I
37、UF 434:2009(E) 2 ISO 2009 All rights reserved4 Apparatus and materials Use normal laboratory apparatus and the following. 4.1 Suitable mechanical device, for mechanically agitating the containers (4.2) by rotation at 40 r/min 5 r/min and able to maintain a temperature of 30 C 2 C. The apparatus chos
38、en shall be fitted with a cooling device, if necessary. 4.2 Containers, made of glass or stainless steel, of approximately 500 ml capacity, which can be closed, e.g. using solvent-resistant gaskets, and which are suitable for agitating the composite specimen in the selected solvent solution. 4.3 PTF
39、E (polytetrafluoroethylene) rods, 20 pieces, each approximately 7 mm to 9 mm in diameter and 20 mm 2 mm long. 4.4 Plain-weave multifibre fabric, approximately 100 mm wide, for use as the adjacent fabric. The type DW multifibre fabric conforming to ISO 105-F10 is normally used. 4.5 Solvent solution,
40、containing at least one of the following solvents: tetrachloroethylene (also commonly referred to as perchloroethylene or “per”), of commercial dry-cleaning grade. The solvent shall be stored over anhydrous sodium carbonate to neutralize any hydrochloric acid formed; petroleum hydrocarbon, boiling p
41、oint 182 C to 200 C, of commercial dry-cleaning grade; or other solvents commonly used for purposes of dry cleaning in the country concerned. If other solvents are used then they shall be clearly defined and shall be indicated in the test report. CAUTION Many solvents are considered to be toxic. Use
42、 adequate ventilation and avoid contact with the skin. NOTE Perchloroethylene is considered to be slightly more severe in solvent-cleaning action than petroleum solvents. Normally, a colour which is not affected by perchloroethylene will not be affected by petroleum solvents, whereas the converse is
43、 not always true. 4.6 Glycerol tri(cis-9-octadecenoate) (also referred to as glycerol trioleate or “triolein”), of technical grade. 5 Test specimen Cut out a leather specimen measuring approximately 40 mm 100 mm. Fix a piece of adjacent fabric (4.4) measuring approximately 40 mm 100 mm on the flesh
44、side of the leather for grain leathers, or on the side worn inside for other leathers, using a steel staple at one end of the specimen. Alternatively, the adjacent fabric and the leather can be sewn together at one end of the specimen. BS EN ISO 11643:2009ISO 11643:2009(E) IULTCS/IUF 434:2009(E) ISO
45、 2009 All rights reserved 36 Procedure 6.1 The solvent solution used shall be one of those prepared as specified in Table 1. Table 1 Solvent solutions Solvent solution Solvent Triolein g/l No. 1 No. 2 No. 3aPerchloroethylene Petroleum hydrocarbon Perchloroethylene 30 aAdd the appropriate amount of t
46、riolein to the solvent and stir until a clear solution is obtained. NOTE 1 For certain purposes, it can be useful to add different amounts of triolein to the solution. NOTE 2 For some applications, the addition of a detergent might be appropriate (see Annex A). 6.2 If necessary, set the temperature
47、control of the agitating device (4.1) and pre-heat it to approximately 30 C. Place the composite specimen (Clause 5), 100 ml 5 ml of the solvent solution (4.5) and 20 PTFE rods (4.3) in the container (4.2) and place the container in the agitating device. Rotate the container at 40 r/min 5 r/min for
48、30 min, maintaining the temperature at 30 C 2 C. 6.3 Remove the composite specimen from the container, place it between two sheets of absorbent paper, compress it uniformly with a load of 4,5 kg and maintain the pressure for 1 min. Remove the specimen and place the specimen on a horizontal grille so
49、 that the leather and adjacent fabric are not touching. Let the solvent evaporate at ambient temperature under a suitable hood with good ventilation. CAUTION When removing and drying specimens, use adequate ventilation and avoid contact of the solvent with the skin. When dry, check if fibres and loose material adhere to the adjacent fabric; remove these by careful use of the sticky side of a clear adhesive tape. 6.4 Visually assess the change in colour of the leather in accordance
