EN ISO 105-J05:2007 PDF

Name: EN ISO 105-J05:2007 — Textiles - Tests for colour fastness - Part J05: Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCONO2) (ISO 105-J05:2007)
SKU: EN ISO 105-J05:2007
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Textiles - Tests for colour fastness - Part J05: Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCONO2) (ISO 105-J05:2007)

Название (английский):

EN ISO 105-J05:2007

Textiles - Tests for colour fastness - Part J05: Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCONO2) (ISO 105-J05:2007)

Статус документа:: Действующий
Формат:: Электронный (PDF)
Количество страниц:: 11
Дата публикации:: 15 марта 2007 г.
Издание:: CEN EN 105 edition 1 version 1
ICS:: 59.080.01

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Описание (английский):

ISO 105-J05:2007 provides a colorimetric method for calculating an estimate of the magnitude (and optionally the direction) of the change in the perceived colour of a textile specimen when the chromaticity of the illumination by which it is viewed is changed. It therefore provides an estimate of the colour inconstancy of the specimen.

Abstract

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Overview

EN ISO 105-J05:2007 is a European and international standard developed by CEN and ISO for the textile industry. Titled Textiles - Tests for colour fastness - Part J05: Method for the instrumental assessment of the colour inconstancy of a specimen with change in illuminant (CMCCONO2), this standard provides a reliable, colorimetric method to estimate how much the perceived color of a textile changes under different lighting conditions. This technique is crucial in analyzing and quantifying the colour inconstancy of textiles, supporting quality control and consistency in textile production and finishing.

The standard outlines a process for instrumental assessment, focusing on the effects of changing illuminants on single textile specimens. It quantifies the magnitude of color shifts using established color measurement techniques, ensuring objective and reproducible results.

Key Topics

Colour Inconstancy versus Metamerism:

Colour inconstancy refers to how the color of a single textile specimen changes under different light sources.
Metamerism involves how the perceived color difference between two specimens changes under varied illumination.

Instrumental Assessment:

The standard specifies the use of colorimetric instruments (such as spectrophotometers or colorimeters) to measure tristimulus values based on agreed illuminants, often using CIE Standard Illuminant D65 and a test illuminant.
Calculation is based on the CMCCON02 index, providing an objective metric for color inconstancy.

Chromatic Adaptation Transform (CAT02):

The methodology employs chromatic adaptation transforms to assess and convert color measurements between different illuminants, increasing accuracy.

Reporting Requirements:

Test reports must include all relevant measurement conditions, instrument details, test illuminant, calculation method, and the resulting CMCCON02 value.

Applications

Textile Design & Manufacturing:

Ensures that textile products display consistent color appearance under diverse lighting environments (e.g., retail stores, daylight, home lighting), reducing customer returns and complaints.
Supports dye selection and quality control by providing measurable data on color inconstancy.
Applicable for both research and production quality assurance settings.

Retail and Consumer Goods:

Helps brands maintain color quality and consistency across product lines and locations where lighting conditions vary.
Valuable for specification and verification when sourcing textiles from multiple suppliers.

Certification and Compliance:

Manufacturers can demonstrate compliance with international standards for color fastness and inconstancy, enhancing global market access.

Related Standards

ISO 105-J01: Textiles - Tests for colour fastness - Part J01: General principles for measurement of surface colour - foundational principles for color measurement in textiles.

ISO 105-J03: Textiles - Tests for colour fastness - Part J03: Calculation of colour differences - guidelines for calculating color difference values, referenced in the calculation of the CMCCON02 index.

CIE Publications (e.g., CIE Publ. 159:2004): Models and protocols for color appearance and management systems.

ASTM E308: Standard Practice for Computing the Colors of Objects by Using the CIE System - guidance for color computations essential to the methods in EN ISO 105-J05.

EN ISO 105-J05:2007 plays a vital role in the textile industry, offering a standardized, objective approach to evaluating and managing color inconstancy, and supporting enhanced color quality across the global supply chain.

EN ISO 105-J05:2007 PDF

Abstract

Похожие стандарты

Overview

Key Topics

Applications

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