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1、 Reference number ISO 22776:2004(E) ISO 2004 INTERNATIONAL STANDARD ISO 22776 First edition 2004-12-15 Footwear Test methods for accessories: Touch and close fasteners Shear strength before and after repeated closing Chaussures Mthodes dessai pour accessoires: fermetures auto-agrippantes Rsistance l
2、a traction avant et aprs un usage rpt Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776
3、:2004(E) PDF disclaimer This PDF file may contain embedded typefaces. In accordance with Adobes licensing policy, this file may be printed or viewed but shall not be edited unless the typefaces which are embedded are licensed to and installed on the computer performing the editing. In downloading th
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6、w. ISO 2004 All rights 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 i
7、n the country of the 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 2004 All rights reserved Copyright International Organization for Standardization Provided by IH
8、S under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) ISO 2004 All rights reserved iii Foreword ISO (the International Organization for Standardization) i
9、s 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 represe
10、nted 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 are d
11、rafted 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 International
12、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 22776 was prepar
13、ed by the European Committee for Standardization (CEN) in collaboration with Technical Committee ISO/TC 216, Footwear, in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement). Throughout the text of this document, read “.this European Standard.” to mean “.thi
14、s International Standard.”. Annex ZA provides a list of corresponding International and European Standards for which equivalents are not given in the text. Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 N
15、ot for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) iv ISO 2004 All rights reserved Contents Page Forewordv 1 Scope 1 2 Normative references 1 3 Terms and definitions .1 4 Principle1 4.1 Shear strength1 4.2 Shear strength aft
16、er repeated opening and closing 1 5 Apparatus .2 6 Test specimens5 7 Conditioning.5 8 Procedure .6 9 Calculation and expression of results.8 10 Test report 8 Annex ZA (normative) Normative references to International publications with their corresponding European publications9 Copyright Internationa
17、l Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) ISO 2004 All rights reserved v Foreword This docume
18、nt (EN ISO 22776:2004) has been prepared by Technical Committee CEN/TC 309 “Footwear“, the secretariat of which is held by AENOR, in collaboration with Technical Committee ISO/TC 216 “Footwear“. This European Standard shall be given the status of a national standard, either by publication of an iden
19、tical text or by endorsement, at the latest by June 2005, and conflicting national standards shall be withdrawn at the latest by June 2005. According to the CEN/CENELEC Internal Regulations, the national standards organizations of the following countries are bound to implement this European Standard
20、: Austria, Belgium, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Slovakia, Slovenia, Spain, Sweden, Switzerland and United Kingdom. Copyright International Or
21、ganization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- Copyright International Organization for Standardization Provided by IHS
22、under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) ISO 2004 All rights reserved 1 1 Scope This document specifies a test method for determining the longi
23、tudinal shear strength of touch and close fasteners before and after repeated use. 2 Normative 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
24、 referenced document (including any amendments) applies. EN 12222, Footwear - Standard atmospheres for conditioning and testing of footwear and components for footwear EN 12240, Touch and close fasteners Determination of the overall and effective widths of tapes and the effective width of a closure
25、EN ISO 7500-1, Metallic materials Verification of static uniaxial testing machines Part 1: Tension/compression testing machines Verification and calibration of the force-measuring system (ISO 7500-1:2004) 3 Terms and definitions For the purposes of this document, the following terms and definitions
26、apply. 3.1 longitudinal shear strength maximum force per unit effective area required to separate the two tapes forming the specified closure in a shearing action under the specified conditions of test 3.2 effective width width of the pile at 90 to the length of the tape and which does not include t
27、he selvedge 3.3 effective area of a closure product of the effective width of a closure and the length of a closure 4 Principle 4.1 Shear strength Mated component tapes of a touch and close fastener are separated at a constant rate along the closure in a direction parallel to the length of the tapes
28、 forming the closure and in the plane of the closure. 4.2 Shear strength after repeated opening and closing A touch and close fastener is repeatedly opened and closed a standard number of times by a machine. The shear strength is then measured by repeating the test described in 4.1. Copyright Intern
29、ational Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) 2 ISO 2004 All rights reserved 5 Apparatus 5.
30、1 A tensile testing machine complying with the requirements of EN ISO 7500-1 to an accuracy corresponding to class 2, and with the following: 5.1.1 A jaw separation rate of 100 mm/min 10 mm/min. 5.1.2 The means of producing a continuous record of force throughout the test. 5.2 A roller device with a
31、 roller (see Figure 1) of diameter 100 mm 5 mm capable of applying a force of 1,0 N 0,1 N per millimetre width of the test specimen. This is to close the fastener under a standard pressure. 5.3 Fork with a handle (see Figure 2) which engages the roller (5.2) and allows it to be moved without any ext
32、ra down force being applied (see Figure 3). Dimensions in mm Figure 1 Roller Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted w
33、ithout license from IHS -,-,- ISO 22776:2004(E) ISO 2004 All rights reserved 3 Dimensions in mm Key 1 Handle 2 Forks 3 Space between the forks to be 2 mm greater than the roller width Figure 2 Fork with a handle Figure 3 Rolling mechanism for touch and close fasteners Copyright International Organiz
34、ation for Standardization Provided by IHS under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) 4 ISO 2004 All rights reserved 5.4 A touch and close cycling
35、 machine (see Figure 4) with: 5.4.1 Two circular drums of minimum width 70 mm, one of diameter 160,0 mm 0,5 mm and the other diameter 162,5 mm 0,5 mm. Each drum has a single slot of length 55 mm 2 mm across its width to hold the free ends of the specimen fastener. The drums are mounted next to each
36、other with their axes parallel. 5.4.2 A means of rotating the smaller of the two drums at a rate of 60 rev/min 5 rev/min with the direction of rotation being reversed every 30 s 5 s. The larger of the two drums rotates freely and is driven by physical contact with the smaller drum via the test speci
37、men. 5.4.3 A means of applying a force of 1,0 N 0,1 N between the two drums for every 1 mm width of the test specimen. 5.4.4 A method of counting the total number of rotations of the smaller of the two drums regardless of the direction of rotation. Key 1 Idling drum (diameter 162.5 mm 0,5 mm) 2 Hook
38、 tape 3 Driven drum (diameter 160 mm 0,5 mm) 4 Loop tape F Force between drums = 1 N for every millimetre of effective width of fastener X Drum Figure 4 Touch and close fastener cycling machine Copyright International Organization for Standardization Provided by IHS under license with ISO Licensee=N
39、ASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) ISO 2004 All rights reserved 5 6 Test specimens 6.1 Shear strength Cut four test specimens of both hook and loop components at least 10
40、0 mm long and mark each with a “1” at one end and a “2” at the other end (see Figure 5). 6.2 Shear strength after repeated opening and closing 6.2.1 Cut one piece of length 540 mm 10 mm from both the hook and loop tapes. 6.2.2 Mark four test specimens, each of length 100 mm 5 mm on the central porti
41、on of both tapes. 6.2.3 Mark each 100 mm test specimen section with a “1” at one end and a “2” at the other (see Figure 5). Do not cut the test specimens out at this stage. Key A Hook tape B Loop tape C Spare tape X Specimen Figure 5 Marking and cutting of test specimens 7 Conditioning The test spec
42、imens shall be conditioned in accordance with the standard atmosphere specified in EN 12222 for a minimum of 24 h prior to the test. The closing of the test specimens and the testing shall also take place under these conditions. Copyright International Organization for Standardization Provided by IH
43、S under license with ISO Licensee=NASA Technical Standards 1/9972545001 Not for Resale, 04/21/2007 00:56:17 MDTNo reproduction or networking permitted without license from IHS -,-,- ISO 22776:2004(E) 6 ISO 2004 All rights reserved 8 Procedure 8.1 Shear strength 8.1.1 Measure the effective width (3.2
44、), We, of both a hook and loop tapes (see 6.1), according to EN 12240, to an accuracy of 0,5 mm and use the smaller of these two values as the width of all the assembled fasteners. 8.1.2 Assemble (in accordance with the combinations of closure shown in Figure 6) the test specimens (see 6.1) as follo
45、ws: 8.1.2.1 Select the length of overlap, Lo, in accordance with the following: 50 mm for fastener systems (see Figure 6) comprised of woven hook tape and woven loop tape; 20 mm for fastener systems comprised of either woven or knitted mushroom tape and knitted loop tape; 20 mm for fastener systems
46、comprised of a plastic hook tape and knitted loop tape; 50 mm for fastener systems not listed here above, but in the event that tensile failure occurs to either of the tapes during testing, the overlap should be reduced to 20 mm. 8.1.2.2 Place the hook tape on a flat surface with the pile uppermost
47、and then place the loop tape on top with the pile facing downwards so that only the selected length of overlap together with the overall width make a closure, using minimal hand pressure. 8.1.3 Traverse the roller device (5.2) at a rate of approximately 200 mm/s along the tapes in one direction, then immediately traverse in the opposite direction, then turn the mating tapes over. NOTE The tapes are turned over to minimise curvature. 8.1.4 Repeat the procedure until the roller has traversed the mating tapes five times in each direction, i.e. a total of ten times, taking care that:
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