1、BRITISH STANDARD BS ISO 7617-1:2001 Plastics-coated fabrics for upholstery Part 1: Specification for PVC-coated knitted fabrics ICS 59.080.40 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAWBS ISO 7617-1:2001 This British Standard, having been prepared under the direction of th
2、e Sector Policy and Strategy Committee for Materials and Chemicals, was published under the authority of the Standards Policy and Strategy Committee on 28 January 2002 BSI 28 January 2002 ISBN 0 580 38863 8 National foreword This British Standard reproduces verbatim ISO 7617-1:2001 and implements it
3、 as the UK national standard. It supersedes BS 5790-1:1996 which is withdrawn. The UK participation in its preparation was entrusted to Technical Committee TCI/78, Coated fabrics, which has the responsibility to: A list of organizations represented on this committee can be obtained on request to its
4、 secretary. Cross-references The British Standards which implement international publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled “International Standards Correspondence Index”, or by using the “Find” facility of the BSI Standards Elect
5、ronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. aid enquirers to underst
6、and the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European developments and promulgate them in the UK. Summary of pages This document comprises
7、a front cover, an inside front cover, the ISO title page, pages ii to iv, pages 1 to 17 and a back cover. The BSI copyright date displayed in this document indicates when the document was last issued. Amendments issued since publication Amd. No. Date Comments Reference number ISO 7617-1:2001(E) ISO
8、2001INTERNATIONAL STANDARD ISO 7617-1 Third edition 2001-12-15 Plastics-coated fabrics for upholstery Part 1: Specification for PVC-coated knitted fabrics Supports textiles revtus de plastique pour ameublement et garniture Partie 1: Spcifications des toffes tricotes revtues de PVC ii ISO 7617-1:2001
9、(E) iiiContents Page Foreword.iv 1 Scope 1 2 Normative references1 3 Sampling.2 4 Testing and compliance2 5 Technical requirements 2 6 Marking .6 7 Test report 6 Annex A (normative) Method of selecting test specimens .7 Annex B (normative) Determination of elongation and elastic recovery.10 Annex C
10、(normative) Determination of resistance to print wear 12 Annex D (normative) Determination of skin-coat resistance of coated fabrics14 Annex E (normative) Determination of colour fastness to rubbing .16 Bibliography17 ISO 7617-1:2001(E) iv Foreword ISO (the International Organization for Standardiza
11、tion) 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. Each member body interested in a subject for which a technical committee has been established has the right to be
12、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 International Electrotechnical Commission (IEC) on all matters of electrotechnical standardization. International Standard
13、s are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. The main task of technical committees is to prepare International Standards. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Interna
14、tional 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 part of ISO 7617 may be the subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 7
15、617-1 was prepared by Technical Committee ISO/TC 45, Rubber and rubber products, Subcommittee SC 4, Products (other than hoses). This third edition cancels and replaces the second edition (ISO 7617-1:1994), which has been technically revised. ISO 7617 consists of the following parts, under the gener
16、al title Plastics-coated fabrics for upholstery: Part 1: Specification for PVC-coated knitted fabrics Part 2: Specification for PVC-coated woven fabrics Part 3: Specification for polyurethane-coated woven fabrics Annexes A to E form a normative part of this part of ISO 7617. INTERNATIONAL STANDARD I
17、SO 7617-1:2001(E)1Plastics-coated fabrics for upholstery Part 1: Specification for PVC-coated knitted fabrics 1 Scope This part of ISO 7617 specifies technical requirements for coated fabrics for upholstered furniture for interior use, obtained by applying to one side of a weft-knitted base cloth a
18、substantially continuous coating of a suitably plasticized polymer of vinyl chloride, or a copolymer the major constituent of which is vinyl chloride. Such coatings are known as poly(vinyl chloride) (PVC) coatings. The present specification covers fabrics coated with solid PVC and also covers two gr
19、ades with coatings consisting of a layer of expanded PVC. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this part of ISO 7617. For dated references, subsequent amendments to, or revisions of, any of these p
20、ublications do not apply. However, parties to agreements based on this part of ISO 7617 are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative document referred to appl
21、ies. Members of ISO and IEC maintain registers of currently valid International Standards. ISO 105-A02:1993, Textiles Tests for colour fastness Part A02: Grey scale for assessing change in colour ISO 105-B01:1994, Textiles Tests for colour fastness Part B01: Colour fastness to light: Daylight ISO 10
22、5-B02:1994, Textiles Tests for colour fastness Part B02: Colour fastness to artificial light: Xenon arc fading lamp test ISO 105-X12:2001, Textiles Tests for colour fastness Part X12: Colour fastness to rubbing ISO 1419:1995, Rubber- or plastics-coated fabrics Accelerated-ageing tests ISO 1421:1998,
23、 Rubber- or plastics-coated fabrics Determination of tensile strength and elongation at break ISO 2231:1989, Rubber- or plastics-coated fabrics Standard atmospheres for conditioning and testing ISO 2286:1998 (all parts), Rubber- or plastics-coated fabrics Determination of roll characteristics ISO 24
24、11:2000, Rubber- or plastics-coated fabrics Determination of coating adhesion ISO 3303:1990, Rubber- or plastics-coated fabrics Determination of bursting strength ISO 5978:1990, Rubber- or plastics-coated fabrics Determination of blocking resistance ISO 5981:1997, Rubber- or plastics-coated fabrics
25、Determination of resistance to combined shear flexing and rubbing ISO 7617-1:2001(E) 2 ISO 6451:1982, Plastics coated fabrics Polyvinyl chloride coatings Rapid method for checking fusion ISO 7854:1995, Rubber- or plastics-coated fabrics Determination of resistance to damage by flexing 3 Sampling If
26、individual rolls can be identified with manufacturing batches, at least one sample shall be taken from each batch in the consignment. Each sample shall be regarded as being representative of its source, and suitable measures shall be taken to preserve the identity between the samples and batch numbe
27、rs. If individual rolls cannot be identified in this way, the number of samples to be regarded as being representative of the bulk shall be fixed by agreement between the purchaser and the supplier. Such samples shall be drawn at random. 4 Testing and compliance Samples shall first be subjected to t
28、he preliminary examination described in 5.1, which enables grossly defective coated fabrics to be rejected immediately. If the samples satisfy this examination, testing shall be continued as follows: Tests shall be carried out on a set of test specimens selected from each sample in accordance with a
29、nnex A. If testing shows that the test specimens comply with the requirements of Tables 1 to 4, the bulk of the coated fabric represented by the sample shall be deemed to comply with the requirements of this part of ISO 7617. If any of the specimens tested do not comply with any of the appropriate r
30、equirements given in Tables 1 to 4, the tests which the specimens have failed shall be repeated twice. For this purpose, two further samples shall be taken from the same source as the original sample, and test specimens shall be taken from each sample so that duplicate tests may be conducted. If all
31、 the re-test results comply with the appropriate requirements of Tables 1 to 4, then the bulk represented by the samples from which the specimens for re-testing were taken, together with the original samples, shall be deemed to comply with the requirements of this part of ISO 7617. If any of the res
32、ults of the re-tests do not comply with the appropriate requirements of Tables 1 to 4, then the bulk represented by those samples shall be deemed not to comply with the requirements of this part of ISO 7617. 5 Technical requirements 5.1 Preliminary inspection 5.1.1 General A preliminary inspection s
33、hall be carried out as specified in 5.1.2 and 5.1.3, before conducting a detailed examination and expensive tests, in order to ensure that the samples do not exhibit easily detectable unacceptable faults. If such faults are detected, the inspection shall be stopped and the sample shall be considered
34、 as not complying with the requirements of this part of ISO 7617. This shall be stated in the test report. 5.1.2 Visual inspection The coating shall be uniformly applied and shall be free of visible flaws or cracks. Indicated local flaws are admitted, but no test specimen shall be cut less than 5 cm
35、 from the flaw. When examined under a magnification of 6, the coating shall be substantially free of pinholes. Carry out the inspection by examining 10 areas, each measuring 2 cm 2 cm, evenly distributed over the usable width and length of the sample. The mean pinhole density shall not be more than
36、10 per square decimetre (i.e. 2,5 times the total count shall be 10). This requirement does not apply to products stated to be microperforated. ISO 7617-1:2001(E) 3NOTE 1 Products which are stated to be microperforated will nomally be provided with special cleaning instructions. Unless the coating i
37、s intentionally transparent, the knitted base fabric shall not be visible through the coating. Its profile shall also not be visible, either when the coated fabric is slack or when a slight tension is applied by hand. Its presence shall also not be apparent by virtue of any printing or surface lacqu
38、er which may be present. If the base fabric is visible in any of these ways, testing may be continued, but the visibility of the base fabric shall be reported in the test report. NOTE 2 It is possible that the surface is marked with the pattern of the back surface if the roll has been wound too tigh
39、t. Such marks are reversible and acceptable. They can be easily identified by heating a piece of coated fabric for a few minutes in an oven at a temperature around 100 C: the marking due to tight winding disappears. It shall be possible to bend the coated fabric through an angle of 180, with its coa
40、ted face outwards, without any noticeable whitening. If whitening appears, testing may be continued, but the appearance of the whitening shall be reported in the test report. 5.1.3 Fusion Verify the state of fusion of the coating to the base fabric in accordance with ISO 6451. Stop testing if the co
41、mponents are not fused together satisfactorily. 5.2 Colour, embossing and finish The quality of the colour, embossing and finish of the coated fabric, whether the material is plain or multicoloured, shall be subject to agreement between the customer and supplier. This agreement shall be based on a r
42、eference sample, and on illustrations or other ways of indicating acceptable deviations from the reference sample. Comparison of colours shall be carried out in accordance with ISO 105-B01. NOTE 1 Instrumental measurement of the colour difference between a specimen and the agreed reference sample ma
43、y be performed, if agreed between the interested parties. However, it should be pointed out that such methods are not without problems. The result is influenced by the gloss and the state of the surface of the coated fabric. In addition, the presence of embossing and small differences in gloss induc
44、e variations, which can be large, in the results, while the colour itself remains the same. The use of a spectrophotometer equipped with an integrating sphere is mandatory but allows these variations to be only partly eliminated. It is recommended therefore that, before carrying out any instrumental
45、 colour measurements on unknown samples, the interested parties conduct comparative trials in order to determine precisely the optimum conditions of measurement and to define tolerances, using samples which have already been adjudged acceptable or not by examination in accordance with ISO 105-B01. N
46、OTE 2 Gloss can be evaluated by means of a glossmeter or reflectometer, which measures specular reflection The sensitivity of such an apparatus will vary with the angle of incidence, to an extent depending on the degree of gloss or dullness: 20, 60 and 85 are the angles of incidence normally selecte
47、d for glossy, semiglossy and matt coated fabrics. However, sensitivity is poor for highly matt materials. Moreover, reflection can vary noticeably from place to place on the surface depending on the embossing pattern. Bearing these reservations in mind and the fact that response can vary from one ap
48、paratus to another, parties which decide to evaluate gloss in this manner should preferably verify, in advance, the reproducibility of the apparatus used for the coated fabrics to be tested. 5.3 Dimensions 5.3.1 Usable width The usable width of the coated fabric, measured in accordance with ISO 2286
49、-1, shall be as agreed between purchaser and supplier. For this purpose, the term “usable width” shall refer to the width that has received a coating complying with the requirements of 5.1. (See also the note to 5.3.2.) 5.3.2 Length of coated fabric in a roll The length of material in a roll, measured in accordance with ISO 2286-1, shall be as agreed between purchaser and supplier, including selected lengths and accepted tolerances. ISO 7617-1:2001(E) 4 NOTE When, exceptionally, the coated fabric is supplied as pre-cut
