Textiles - Tests for colour fastness - Part X08: Colour fastness to degumming (ISO 105-X08:1994)

Describes a method for determining the resistance of the colour of textiles of all kinds, except loose fibre, to the action of soap solutions such as those used in degumming raw silk. A specimen of the textile in contact with adjacent fabrics is treated with a soap solution, then rinsed and dried. The change in colour of the specimen and the staining of the adjacent fabrics are assessed with the grey scales.

Textilien - Farbechtheitsprüfungen - Teil X08: Farbechtheit gegen Entbasten (ISO 105-X08:1994)

Textiles - Essais de solidité des teintures - Partie X08: Solidité des teintures au décreusage (ISO 105-X08:1994)

La présente partie de l'ISO 105 prescrit une méthode pour la détermination de la résistance des teintures sur les textiles de toute nature, à l'exception de la fibre en bourre, à l'action des solutions savonneuses telles qu'on les utilise pour décreuser la soie grège.

Tekstilije - Preskušanje barvne obstojnosti - Del X08: Barvna obstojnost proti degumiranju (ISO 105-X08:1994)

General Information

Status
Published
Publication Date
22-Apr-1997
Withdrawal Date
30-Oct-1997
ICS
59.080.01 - Textiles in general
Technical Committee
CEN/TC 248 - Textiles and textile products
Drafting Committee
CEN/TC 248/SC 3 - Chemical properties
Current Stage
9093 - Decision to confirm - Review Enquiry
Start Date
29-May-2007
Completion Date
29-May-2007
Ref Project
SIST EN ISO 105-X08:1999 - Textiles - Tests for colour fastness - Part X08: Colour fastness to degumming (ISO 105-X08:1994)

Overview

EN ISO 105-X08:1997 (ISO 105-X08:1994) specifies a laboratory method to determine the resistance of textile colour to the action of soap solutions used in degumming raw silk. The method applies to textiles of all kinds except loose fibre. A composite specimen is prepared with the test sample held between two adjacent fabrics, treated with a defined soap solution under reflux, then rinsed, dried and evaluated. Colour change of the specimen and staining of adjacent fabrics are assessed using the ISO grey scales.

Practical value: this standard supports quality control, dye selection and process validation where exposure to soap/degumming treatments is expected (for example in silk finishing and testing dyed goods).

Key Topics

  • Scope and purpose

    • Tests colour fastness to soap solutions such as those used for degumming raw silk.
    • Excludes testing of loose fibre.

  • Test principle

    • A specimen (fabric or yarn formed into a layer) is sandwiched between two single-fibre adjacent fabrics and sewn to form a composite specimen.
    • The composite is refluxed in a lightly boiling soap solution, rinsed, dried and assessed.

  • Apparatus and reagents

    • Vessel with reflux condenser (capacity ~500 ml).
    • Soap complying with specified limits (low free alkali, minimum fatty matter, free from optical brighteners).
    • Soap solution prepared at 7 g soap per litre of grade 3 water.
    • Anhydrous sodium carbonate (Na2CO3) and grade 3 water.
    • Two single-fibre adjacent fabrics: one made of raw silk (section F06 of ISO 105-F:1985) and one made of the same or predominant fabric as the specimen.
    • Grey scales for assessment (ISO 105-A02 and ISO 105-A03).

  • Procedure highlights

    • Composite specimen size typically 40 mm x 100 mm for fabric samples; yarns are formed into a layer and secured.
    • Liquor ratio 100:1; treat under reflux for 10 minutes, then add 0.5 g Na2CO3 per litre and continue boiling lightly for a further 110 minutes (2 hours total).
    • Rinse in grade 3 water, then in cold running tap water, squeeze and dry in air at temperatures not exceeding 60 °C.
    • Assess colour change and staining against the grey scales and record numerical ratings.

  • Reporting

    • Include the ISO reference (ISO 105-X08:1994), sample identification, and numerical grey scale ratings for both colour change and staining.

Applications

  • Quality control in textile mills and dye houses exposed to degumming or soap treatments.
  • Validating dye selection and finishing processes for silk and blended fabrics.
  • Laboratory compliance testing and product specification verification.
  • Research and development of detergents, dyes and finishing processes related to degumming.

Related Standards

  • ISO 105-A01:1994 - General principles of testing
  • ISO 105-A02:1993 - Grey scale for assessing change in colour
  • ISO 105-A03:1993 - Grey scale for assessing staining
  • ISO 105-F:1985 - Standard adjacent fabrics (sections F06–F08 referenced for raw silk and other adjacent fabrics)

For laboratories and product teams, EN ISO 105-X08:1997 provides a repeatable, standardized method to evaluate how dyeing performs when textiles undergo soap/degumming exposures, enabling consistent quality decisions and compliance reporting.

Frequently Asked Questions

EN ISO 105-X08:1997 is a standard published by the European Committee for Standardization (CEN). Its full title is "Textiles - Tests for colour fastness - Part X08: Colour fastness to degumming (ISO 105-X08:1994)". This standard covers: Describes a method for determining the resistance of the colour of textiles of all kinds, except loose fibre, to the action of soap solutions such as those used in degumming raw silk. A specimen of the textile in contact with adjacent fabrics is treated with a soap solution, then rinsed and dried. The change in colour of the specimen and the staining of the adjacent fabrics are assessed with the grey scales.

Describes a method for determining the resistance of the colour of textiles of all kinds, except loose fibre, to the action of soap solutions such as those used in degumming raw silk. A specimen of the textile in contact with adjacent fabrics is treated with a soap solution, then rinsed and dried. The change in colour of the specimen and the staining of the adjacent fabrics are assessed with the grey scales.

EN ISO 105-X08:1997 is classified under the following ICS (International Classification for Standards) categories: 59.080.01 - Textiles in general. The ICS classification helps identify the subject area and facilitates finding related standards.

You can purchase EN ISO 105-X08:1997 directly from iTeh Standards. The document is available in PDF format and is delivered instantly after payment. Add the standard to your cart and complete the secure checkout process. iTeh Standards is an authorized distributor of CEN standards.

Standards Content (Sample)


SLOVENSKI STANDARD
01-marec-1999
Tekstilije - Preskušanje barvne obstojnosti - Del X08: Barvna obstojnost proti
degumiranju (ISO 105-X08:1994)
Textiles - Tests for colour fastness - Part X08: Colour fastness to degumming (ISO 105-
X08:1994)
Textilien - Farbechtheitsprüfungen - Teil X08: Farbechtheit gegen Entbasten (ISO 105-
X08:1994)
Textiles - Essais de solidité des teintures - Partie X08: Solidité des teintures au
décreusage (ISO 105-X08:1994)
Ta slovenski standard je istoveten z: EN ISO 105-X08:1997
ICS:
59.080.01 Tekstilije na splošno Textiles in general
2003-01.Slovenski inštitut za standardizacijo. Razmnoževanje celote ali delov tega standarda ni dovoljeno.

INTERNATIONAL ISO
STANDARD 105-X08
Fourth edition
1994-09-01
Textiles - Tests for colour fastness -
Part X08:
Colour fastness to degumming
Textiles - Essais de soliditb des teintures -
Partie XO8: Soliditg des teintures au dkreusage
Reference number
ISO 105-X08: 1994(E)
ISO 105-X08:1994(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. Esch member body interested in a subject for
which a technical committee has been established has the right to be re-
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.
Draft International Standards adopted by the technical committees are
circulated to the member bodies for voting. Publication as an International
Standard requires approval by at least 75 % of the member bodies casting
a vote.
International Standard ISO 105-X08 was prepared by Technical Committee
lSO/TC 38, Textiles, Subcommittee SC 1, Tests for coloured textiles and
coloran ts.
This fourth edition cancels and replaces the third edition
(ISO 105-XO8:1987), of which it constitutes a technical revision.
ISO 105 was previously published in thirteen “parts ”, each designated by
a letter (e.g. “Part A ”), with publication dates between 1978 and 1985.
Esch part contained a series of “sections ”, each designated by the re-
spective part letter and by a two-digit serial number (e.g. “Section AO1 “).
These sections are now being republished as separate documents, them-
selves designated “Parts” but retaining their earlier alphanumeric desig-
nations. A complete list of these Parts is given in ISO 105-AOI .
0 ISO 1994
All rights reserved. Unless otherwise specified, no part of this publication may be reproduced
or utilized in any form or by any means, electronie or mechanical, including photocopying and
microfilm, without Permission in writing from the publisher.
International Organization for Standardization
Case Postale 56 l CH-l 211 Geneve 20 l Switzerland
Printed in Switzerland
ii
INTERNATIONAL STANDARD 0 ISO ISO 105-X08:1994(E)
- Tests for colour fastness -
Textiles
Part X08:
Colour fastness to degumming
fabrics is treated with a soap Solution, then rinsed and
1 Scope
dried. The Change in colour of the specimen and the
staining of the adjacent fabrics are assessed by com-
This part of ISO 105 specifies a method for deter-
parison with the grey scales.
mining the resistance of the colour of textiles of all
kinds, except loose fibre, to the action of soap sol
...

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