Textiles — Determination of the recovery from creasing of a folded specimen of fabric by measuring the angle of recovery — Part 2: Method of the vertically folded specimen

This document specifies a method for determining crease recovery angle of fabric specimen while placing it in such a way that the folded line is vertical to horizontal plane for a specified time after removal of creasing load. This document is applicable for all kinds of textile fabrics.

Textiles — Détermination de l’auto-défroissabilité d’une éprouvette d’étoffe pliée, par mesurage de l’angle rémanent après pliage — Partie 2: Méthode de l'éprouvette pliée verticalement

Le présent document spécifie une méthode pour déterminer l’angle rémanent d’une éprouvette d’étoffe après pliage, en la plaçant de telle sorte que la ligne pliée soit verticale par rapport au plan horizontal, pendant une durée spécifiée après le retrait de la charge de pliage. Le présent document est applicable à tous types d’étoffes textiles.

General Information

Status
Published
Publication Date
20-May-2021
Current Stage
6060 - International Standard published
Start Date
21-May-2021
Due Date
01-Feb-2021
Completion Date
21-May-2021
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INTERNATIONAL ISO
STANDARD 2313-2
First edition
2021-05
Textiles — Determination of the
recovery from creasing of a folded
specimen of fabric by measuring the
angle of recovery —
Part 2:
Method of the vertically folded
specimen
Textiles — Détermination de l’auto-défroissabilité d’une éprouvette
d’étoffe pliée, par mesurage de l’angle rémanent après pliage —
Partie 2: Méthode de l'éprouvette pliée verticalement
Reference number
ISO 2313-2:2021(E)
©
ISO 2021

---------------------- Page: 1 ----------------------
ISO 2313-2:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 2313-2:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sampling and preparation of specimens . 3
7 Atmosphere for conditioning and testing . 5
8 Test procedure . 5
9 Expression of results . 6
10 Test report . 6
Annex A (informative) Example of automatic tester . 7
© ISO 2021 – All rights reserved iii

---------------------- Page: 3 ----------------------
ISO 2313-2:2021(E)

Foreword
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. 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 International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 24,
Conditioning atmospheres and physical tests for textile fabrics, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile products,
in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
A list of all parts in the ISO 2313 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 2313-2:2021(E)

Introduction
Creases in textile fabrics diminish at varying rates on the removal of the creasing forces. The magnitude
of the crease recovery angle is an indication of the ability of a fabric to recover from accidental creasing.
The suitable method can be chosen according to the type or end-use of textile fabrics. The test results
obtained by different methods are not comparable.
© ISO 2021 – All rights reserved v

---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 2313-2:2021(E)
Textiles — Determination of the recovery from creasing
of a folded specimen of fabric by measuring the angle of
recovery —
Part 2:
Method of the vertically folded specimen
1 Scope
This document specifies a method for determining crease recovery angle of fabric specimen while
placing it in such a way that the folded line is vertical to horizontal plane for a specified time after
removal of creasing load.
This document is applicable for all kinds of textile fabrics.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 139, Textiles — Standard atmospheres for conditioning and testing
3 Terms and definitions
For the purposes of this document, the following terms and definitions apply.
ISO and IEC maintain terminological databases for use in standardization at the fo
...

INTERNATIONAL ISO
STANDARD 2313-2
First edition
Textiles — Determination of the
recovery from creasing of a folded
specimen of fabric by measuring the
angle of recovery —
Part 2:
Method of the vertically folded
specimen
Textiles — Détermination de l’auto-défroissabilité d’une éprouvette
d’étoffe pliée, par mesurage de l’angle rémanent après pliage —
Partie 2: Méthode de l'éprouvette pliée verticalement
PROOF/ÉPREUVE
Reference number
ISO 2313-2:2021(E)
©
ISO 2021

---------------------- Page: 1 ----------------------
ISO 2313-2:2021(E)

COPYRIGHT PROTECTED DOCUMENT
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
be reproduced or utilized otherwise in any form or by any means, electronic or mechanical, including photocopying, or posting
on the internet or an intranet, without prior written permission. Permission can be requested from either ISO at the address
below or ISO’s member body in the country of the requester.
ISO copyright office
CP 401 • Ch. de Blandonnet 8
CH-1214 Vernier, Geneva
Phone: +41 22 749 01 11
Email: copyright@iso.org
Website: www.iso.org
Published in Switzerland
ii PROOF/ÉPREUVE © ISO 2021 – All rights reserved

---------------------- Page: 2 ----------------------
ISO 2313-2:2021(E)

Contents Page
Foreword .iv
Introduction .v
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
5 Apparatus . 2
6 Sampling and preparation of specimens . 3
7 Atmosphere for conditioning and testing . 5
8 Test procedure . 5
9 Expression of results . 6
10 Test report . 6
Annex A (informative) Example of automatic tester . 7
© ISO 2021 – All rights reserved PROOF/ÉPREUVE iii

---------------------- Page: 3 ----------------------
ISO 2313-2:2021(E)

Foreword
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. 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 International Electrotechnical Commission (IEC) on all matters of
electrotechnical standardization.
The procedures used to develop this document and those intended for its further maintenance are
described in the ISO/IEC Directives, Part 1. In particular, the different approval criteria needed for the
different types of ISO documents should be noted. This document was drafted in accordance with the
editorial rules of the ISO/IEC Directives, Part 2 (see www .iso .org/ directives).
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. Details of
any patent rights identified during the development of the document will be in the Introduction and/or
on the ISO list of patent declarations received (see www .iso .org/ patents).
Any trade name used in this document is information given for the convenience of users and does not
constitute an endorsement.
For an explanation of the voluntary nature of standards, the meaning of ISO specific terms and
expressions related to conformity assessment, as well as information about ISO's adherence to the
World Trade Organization (WTO) principles in the Technical Barriers to Trade (TBT), see www .iso .org/
iso/ foreword .html.
This document was prepared by Technical Committee ISO/TC 38, Textiles, Subcommittee SC 24,
Conditioning atmospheres and physical tests for textile fabrics, in collaboration with the European
Committee for Standardization (CEN) Technical Committee CEN/TC 248, Textiles and textile products,
in accordance with the Agreement on technical cooperation between ISO and CEN (Vienna Agreement).
This first edition of ISO 2313-2, together with ISO 2313-1, cancels and replaces ISO 2313:1972, which
has been technically revised.
The main changes compared to the previous edition are as follows:
— changing the normative reference ISO/R 139 to ISO 139.
— redrafting the description about "Sampling and preparation of specimens” to improve clarity of
meaning in Clause 6 (former Clause 6 and Clause 7);
— revising the requirement of atmosphere for conditioning and testing according to ISO 139 in Clause 7
(former 7.4).
A list of all parts in the ISO2313 series can be found on the ISO website.
Any feedback or questions on this document should be directed to the user’s national standards body. A
complete listing of these bodies can be found at www .iso .org/ members .html.
iv PROOF/ÉPREUVE © ISO 2021 – All rights reserved

---------------------- Page: 4 ----------------------
ISO 2313-2:2021(E)

Introduction
Creases in textile fabrics diminish at varying rates on the removal of the creasing forces. The magnitude
of the crease recovery angle is an indication of the ability of a fabric to recover from accidental creasing.
The suitable method can be chosen according to the type or end-use of textile fabrics. The test results
obtained by different methods are not comparable.
© ISO 2021 – All rights reserved PROOF/ÉPREUVE v

---------------------- Page: 5 ----------------------
INTERNATIONAL STANDARD ISO 2313-2:2021(E)
Textiles — Determination of the recovery from creasing
of a folded specimen of fabric by measuring the angle of
recovery —
Part 2:
Method of the vertically folded specimen
1 Scope
This document specifies a method for determining crease recovery angle of fabric specimen while
placing it in such a way that the folded line is vertical to horizontal plane for a specified time after
removal of creasing load.
This document is applicable for all kinds of textile fabrics.
2 Normative references
The following documents are referred to in the text in such a way that some or all of their content
constitutes requirements 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 139, Textiles — Standard a
...

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