ISO-7769-2006.pdf
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1、 Reference number ISO 7769:2006(E) ISO 2006 INTERNATIONAL STANDARD ISO 7769 Third edition 2006-02-15 Textiles Test method for assessing the appearance of creases in fabrics after cleansing Textiles Mthode dessai pour lvaluation de laspect des plis des toffes aprs nettoyage ISO 7769:2006(E) PDF discl
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5、ghts reserved. Unless otherwise specified, no part of this publication may be reproduced or utilized in any form or by any means, electronic or mechanical, including photocopying and microfilm, without permission in writing from either ISO at the address below or ISOs member body in the country of t
6、he requester. ISO copyright office Case postale 56 CH-1211 Geneva 20 Tel. + 41 22 749 01 11 Fax + 41 22 749 09 47 E-mail copyrightiso.org Web www.iso.org Published in Switzerland ii ISO 2006 All rights reserved ISO 7769:2006(E) ISO 2006 All rights reserved iii Contents Page Foreword iv 1 Scope . 1 2
7、 Normative references. 1 3 Principle. 1 4 Apparatus 1 5 Test specimens. 2 6 Procedure 2 7 Expression of results . 3 8 Test report . 3 Annex A (informative) Precision and bias statement . 7 ISO 7769:2006(E) iv ISO 2006 All rights reserved Foreword ISO (the International Organization for Standardizati
8、on) 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 re
9、presented 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 Standards
10、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 Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an Internati
11、onal 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 subject of patent rights. ISO shall not be held responsible for identifying any or all such patent rights. ISO 7769 was pr
12、epared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 2, Cleansing, finishing and water resistance tests. This third edition cancels and replaces the second edition (ISO 7769:1992), which has been technically revised. INTERNATIONAL STANDARD ISO 7769:2006(E) ISO 2006 All rights reserved
13、1 Textiles Test method for assessing the appearance of creases in fabrics after cleansing 1 Scope This International Standard specifies a test method for evaluating the retention of pressed-in creases in fabrics after one or several cleansing treatments. A technique for inserting creases is not incl
14、uded as this is controlled by fabric properties. This method has been developed for use primarily with type B domestic washing machines, as defined in ISO 6330, in the cleansing process. However, it may be possible to use it with type A machines, as defined in the same International Standard. 2 Norm
15、ative references The following referenced documents are indispensable for the application 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-A03, Textiles Tests for
16、colour fastness Part A03: Grey scale for assessing staining ISO 139, Textiles Standard atmospheres for conditioning and testing ISO 3175 (all parts), Textiles Professional care, drycleaning and wetcleaning of fabrics and garments ISO 6330, Textiles Domestic washing and drying procedures for textile
17、testing 3 Principle 3.1 Creased fabric specimens are subjected to procedures simulating cleansing practices. One of the domestic washing and drying procedures specified in ISO 6330 or one of the professional procedures specified in the series of ISO 3175 is used, as agreed between the interested par
18、ties. 3.2 Evaluation is performed by supplementing the overhead lighting arrangement with a spotlight suitably placed to highlight the creased area. The specimens are compared visually with plastic crease replicas under specified illumination. 4 Apparatus 4.1 Washing and drying apparatus, as specifi
19、ed in ISO 6330, or professional care apparatus, as specified in ISO 3175. 4.2 Steam or dry iron, with appropriate fabric temperature settings. ISO 7769:2006(E) 2 ISO 2006 All rights reserved 4.3 Lighting The evaluation area shall be a darkened room, using the lighting arrangement shown in Figures 1
20、and 2 and comprising the following items. Lamp dimensions should be chosen to extend beyond the overall surface of a test specimen and replicas, when used for the assessment. 4.3.1 Two CW (cool white) fluorescent lamps, without baffle or glass, a minimum of 2 m in length each, placed side by side. 4
21、.3.2 One white enamel reflector, without baffle or glass. 4.3.3 One thick plywood viewing board, painted grey to match No. 2 rating on the grey scale for assessing staining specified in ISO 105-A03. 4.3.4 One 500-W reflector flood lamp and lightshield (for the purpose of protecting the viewers eyes
22、from direct light as illustrated in Figure 2). 4.4 Plastic crease replicas, prepared for evaluating creases, as shown in Figure 3 1) . 5 Test specimens Prepare three test specimens, each measuring 38 cm 38 cm and pinked to prevent fraying, each with a press-in crease through the middle. If the fabri
23、c is wrinkled, it may be smoothed by appropriate ironing prior to testing. Care shall be taken to avoid altering the quality of the crease itself. 6 Procedure 6.1 Treat each specimen according to one of the procedures specified in ISO 6330 or ISO 3175, as agreed between the interested parties. 6.2 I
24、f required, repeat the selected treatment four times, to give a total of five cycles. 6.3 Condition the test specimens for a minimum of 4 h and maximum of 24 h, according to ISO 139, by hanging each specimen by two corners with the crease vertical or, alternatively, using full-width clamps. 6.4 Eval
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