EN ISO 105-X11:2026

• Abstract:

  This document specifies a method for determining the resistance of the colour of textiles of all kinds and in all forms to ironing and to processing on hot cylinders.; This document is applicable for hot pressing when the textile is dry, damp or wet which is determined by the end-use of the textile.

• Status: Published
• Publication Date: 23-Jun-2026
• ICS: 59.080.01 - Textiles in general
• Technical Committee: CEN/TC 248 - Textiles and textile products
• Current Stage: 6060 - Definitive text made available (DAV) - Publishing
• Start Date: 24-Jun-2026
• Completion Date: 24-Jun-2026
• Ref Project: SIST EN ISO 105-X11:2026 - Textiles - Tests for colour fastness - Part X11: Colour fastness to hot pressing (ISO 105-X11:2026)

• Replaces: EN ISO 105-X11:1996 - Textiles - Tests for colour fastness - Part X11: Colour fastness to hot pressing (ISO-X11:1994)
• Effective Date: 15-Nov-2023
• Refers: ISO 105-A02:1993 - Textiles — Tests for colour fastness — Part A02: Grey scale for assessing change in colour
• Effective Date: 15-Jul-2026
• Refers: ISO 139:2005 - Textiles — Standard atmospheres for conditioning and testing
• Effective Date: 15-Jul-2026
• Refers: ISO 105-A03:2019 - Textiles — Tests for colour fastness — Part A03: Grey scale for assessing staining
• Effective Date: 15-Jul-2026
• Refers: ISO 105-A01:2010 - Textiles — Tests for colour fastness — Part A01: General principles of testing
• Effective Date: 15-Jul-2026
• Refers: ISO 3696:1987 - Water for analytical laboratory use — Specification and test methods
• Effective Date: 15-Jul-2026
• Refers: ISO 105-F02:2009 - Textiles — Tests for colour fastness — Part F02: Specification for cotton and viscose adjacent fabrics
• Effective Date: 15-Jul-2026
• Referred By: EN 1150:1999 - Protective clothing - Visibility clothing for non-professional use - Test methods and requirements
• Effective Date: 01-Jul-2026
• Referred By: EN 16315:2014 - Textiles - Silk woven fabrics for womenswear, silk squares, scarves and ties - Requirements and test methods
• Effective Date: 01-Jul-2026
• Referred By: EN 340:2003 - Protective clothing - General requirements
• Effective Date: 01-Jul-2026
• Consolidated By: ISO 105-X11:2026 - Textiles — Tests for colour fastness — Part X11: Colour fastness to hot pressing
• Effective Date: 12-Feb-2026

Overview

EN ISO 105-X11:2026, issued by CEN, defines an internationally recognized method for evaluating the colour fastness of textiles during hot pressing processes. This standard is applicable to textiles of all fibers and constructions, investigating their resistance to ironing and processing with hot cylinders. The test outlined in the document can be performed on dry, damp, or wet textiles, with the appropriate method selected based on the textile's end-use. Ensuring reliable colour fastness in textiles is critical for maintaining fabric quality and meeting consumer expectations in a wide range of applications.

Key Topics

• Colour Fastness Assessment: The standard provides procedures to determine how well textile dyes withstand exposure to heat and pressure during ironing or hot cylinder processing.
• Test Methods for Various Conditions:
  • Dry Pressing: Evaluation under hot, dry conditions.
  • Damp Pressing: Testing with a layer of wet adjacent cotton fabric on a dry specimen.
  • Wet Pressing: Both the specimen and the adjacent fabric are wet during testing.
• Procedure & Equipment:
  • Use of controlled heating apparatus to apply defined temperature and pressure.
  • Temperature points commonly tested include 120°C, 160°C, and 210°C, reflecting conditions typical for different fibers.
  • Assessment involves comparison against standardized grey scales for both colour change and staining.
• Reporting Requirements: Includes identification of tested materials, testing parameters (e.g., temperature, moisture state), and numerical ratings of colour change and staining.

Applications

EN ISO 105-X11:2026 is essential across the textile industry, supporting:

• Quality Assurance: Textile manufacturers and suppliers employ this test to ensure their products retain colour integrity after common finishing processes like ironing or calendaring.
• Product Development: Designers and developers use the results to select dyes and finishing processes that optimize the durability of colours in garments and fabrics.
• Compliance and Certification: Brands and retailers may require conformity to this standard to meet regulatory, marketing, or consumer requirements related to textile quality.
• Consumer Safety and Satisfaction: Applying this standard helps prevent unexpected colour changes or staining during customer use, particularly for garments, home textiles, and technical fabrics subjected to heat.
• Research and Comparative Studies: Laboratories and quality institutes use standardized colour fastness tests to compare performance of different dyes, fibers, and textile constructions, leading to better material choices.

Related Standards

• ISO 105-A01: General principles of testing for colour fastness in textiles.
• ISO 105-A02: Grey scale for assessing changes in colour.
• ISO 105-A03: Grey scale for assessing staining.
• ISO 105-F: Standard adjacent fabrics for use in colour fastness tests.
• ISO 139: Standard atmospheres for conditioning and testing textiles.
• ISO 3758: Care labelling of textiles, referenced for pressing temperature guidelines.
• ISO 105-P01: Colour fastness to dry heat (excluding pressing) - related methodology for thermal resistance in textiles.

By adhering to EN ISO 105-X11:2026, organizations ensure robust and repeatable assessment of textile colour fastness under heat, improving the reliability and competitiveness of textile products in global markets. This test standard is key for compliance with industry benchmarks and for delivering high-quality, colour-stable textiles to end users.

SLOVENSKI STANDARD
01-september-2026
Tekstilije - Preskušanje barvne obstojnosti - Del X11: Barvna obstojnost pri
vročem likanju (ISO 105-X11:2026)
Textiles - Tests for colour fastness - Part X11: Colour fastness to hot pressing (ISO 105-
X11:2026)
Textilien - Farbechtheitsprüfungen - Teil X11: Bestimmung der Farbechtheit gegen
Bügeln (ISO 105-X11:2026)
Textiles - Essais de solidité des coloris - Partie X11: Solidité des coloris au pressage à
chaud (ISO 105-X11:2026)
Ta slovenski standard je istoveten z: EN ISO 105-X11:2026
ICS:
59.080.01 Tekstilije na splošno Textiles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

EN ISO 105-X11
EUROPEAN STANDARD
NORME EUROPÉENNE
June 2026
EUROPÄISCHE NORM
ICS 59.080.01 Supersedes EN ISO 105-X11:1996
English Version
Textiles - Tests for colour fastness - Part X11: Colour
fastness to hot pressing (ISO 105-X11:2026)
Textiles - Essais de solidité des coloris - Partie X11: Textilien - Farbechtheitsprüfungen - Teil X11:
Solidité des coloris au pressage à chaud (ISO 105- Bestimmung der Farbechtheit gegen Bügeln (ISO 105-
X11:2026) X11:2026)
This European Standard was approved by CEN on 26 December 2024.

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, Türkiye 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
© 2026 CEN All rights of exploitation in any form and by any means reserved Ref. No. EN ISO 105-X11:2026 E
worldwide for CEN national Members.

Contents Page
European foreword . 3

European foreword
This document (EN ISO 105-X11:2026) 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 2026, and conflicting national standards
shall be withdrawn at the latest by December 2026.
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 ISO 105-X11:1996.
Any feedback and questions on this document should be directed to the users’ national standards
body/national committee. A complete listing of these bodies can be found on the CEN website.
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, Türkiye and the
United Kingdom.
Endorsement notice
The text of ISO 105-X11:2026 has been approved by CEN as EN ISO 105-X11:2026 without any
modification.
International
Standard
ISO 105-X11
Fifth edition
Textiles — Tests for colour
2026-06
fastness —
Part X11:
Colour fastness to hot pressing
Textiles — Essais de solidité des coloris —
Partie X11: Solidité des coloris au pressage à chaud
Reference number
ISO 105-X11:2026(en) © ISO 2026

ISO 105-X11:2026(en)
© ISO 2026
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: [phone]
Email: [e-mail]
Website: www.iso.org
Published in Switzerland
ii
ISO 105-X11:2026(en)
Contents Page
Foreword .iv
1 Scope . 1
2 Normative references . 1
3 Terms and definitions . 1
4 Principle . 1
4.1 Dry pressing .1
4.2 Damp pressing .2
4.3 Wet pressing .2
4.4 Assessment .2
5 Apparatus . 2
6 Test specimen . 3
7 Procedure . 3
7.1 General .3
7.2 Dry pressing .3
7.3 Damp pressing .3
7.4 Wet pressing .4
7.5 Assessment .4
8 Test report . 4
Bibliography . 5

iii
ISO 105-X11:2026(en)
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,
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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).
ISO draws attention to the possibility that the implementation of this document may involve th
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