EN ISO 2313-2:2021

SLOVENSKI STANDARD
01-september-2021
Nadomešča:
SIST EN 22313:1999
Tekstilije - Določanje izkoristka prepognjenega vzorca tkanine z merjenjem kota
predelave - 2. del: Metoda navpično zloženega vzorca (ISO 2313-2:2021)
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 (ISO
2313-2:2021)
Textilien - Bestimmung des Knittererholungsvermögens eines Prüflings durch Messung
des Knittererholungswinkels - Teil 2: Verfahren mit vertikaler Faltenkante des Prüflings
(ISO 2313-2:2021)
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 (ISO 2313-2:2021)
Ta slovenski standard je istoveten z: EN ISO 2313-2:2021
ICS:
59.080.30 Tkanine Textile fabrics
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 2313-2
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2021
EUROPÄISCHE NORM
ICS 59.080.30 Supersedes EN 22313:1992
English Version
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
(ISO 2313-2:2021)
Textiles - Détermination de l'auto-défroissabilité d'une Textilien - Bestimmung des
éprouvette d'étoffe pliée, par mesurage de l'angle Knittererholungsvermögens eines Prüflings durch
rémanent après pliage - Partie 2: Méthode de Messung des Knittererholungswinkels - Teil 2:
l'éprouvette pliée verticalement (ISO 2313-2:2021) Verfahren mit vertikaler Faltenkante des Prüflings (ISO
2313-2:2021)
This European Standard was approved by CEN on 18 May 2021.

CEN members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this
European Standard the status of a national standard without any alteration. Up-to-date lists and bibliographical references
concerning such national standards may be obtained on application to the CEN-CENELEC 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
translation under the responsibility of a CEN member into its own language and notified to the CEN-CENELEC Management
Centre has the same status as the official versions.

CEN members are the national standards bodies of Austria, Belgium, Bulgaria, Croatia, Cyprus, Czech Republic, Denmark, Estonia,
Finland, France, Germany, Greece, Hungary, Iceland, Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway,
Poland, Portugal, Republic of North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and
United Kingdom.
EUROPEAN COMMITTEE FOR STANDARDIZATION
COMITÉ EUROPÉEN DE NORMALISATION

EUROPÄISCHES KOMITEE FÜR NORMUNG

CEN-CENELEC Management Centre: Rue de la Science 23, B-1040 Brussels
© 2021 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 2313-2:2021 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 2313-2:2021) has been prepared by Technical Committee ISO/TC 38 "Textiles"
in collaboration with Technical Committee CEN/TC 248 “Textiles and textile products” the secretariat of
which is held by BSI.
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 December 2021, and conflicting national standards
shall be withdrawn at the latest by December 2021.
Attention is drawn to the possibility that some of the elements of this document may be the subject of
patent rights. CEN shall not be held responsible for identifying any or all such patent rights.
This document supersedes EN 22313:1992.
According to the CEN-CENELEC Internal Regulations, the national standards organizations of the
following countries are bound to implement this European Standard: Austria, Belgium, Bulgaria,
Croatia, Cyprus, Czech Republic, Denmark, Estonia, Finland, France, Germany, Greece, Hungary, Iceland,
Ireland, Italy, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Norway, Poland, Portugal, Republic of
North Macedonia, Romania, Serbia, Slovakia, Slovenia, Spain, Sweden, Switzerland, Turkey and the
United Kingdom.
Endorsement notice
The text of ISO 2313-2:2021 has been approved by CEN as EN ISO 2313-2:2021 without any
modification.
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
ISO 2313-2:2021(E)
© ISO 2021
All rights reserved. Unless otherwise specified, or required in the context of its implementation, no part of this publication may
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Published in Switzerland
ii © ISO 2021 – All rights reserved

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 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
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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).
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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

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.
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 following addresses:
— ISO Online browsing platform: available at https:// www .iso .org/ obp
— IEC Electropedia: available at https:// www .electropedia .org/
3.1
crease recovery angle
angle formed between the two Iimbs of fabric specimen previously folded under prescribed conditions,
at a specified time after removal of the creasing load
Note 1 to entry: In this method, rapid crease recovery angle is obtained at 15 s after removal of the creasing load.
Note 2 to entry: In this method, delay crease recovery angle is obtained at 5 min after removal of the creasing
load.
4 Principle
The folded specimen is maintained under a specified load for a specified time. After removal of creasing
load, the specimen is placed in such a way that the folded line is vertical to horizontal plane for a
specified time, and then the crease recovery angle is measured.
Attention is drawn to the fact that for some types of fabrics, the lim
...