This Standard specifies two test methods for determination of colour fastness transfer in joints of textiles, i.e. washing method and immersion method.
This Standard is applicable to all kinds of textiles made by patchwork of deep and light colour fabrics. Other textiles may also refer to the provisions of this Standard.
2 Normative References
The following referenced documents are indispensable for the application 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.
GB/T 251 Textiles — Tests for Colour Fastness — Grey Scale for Assessing Staining
GB/T 1914 Chemical Analytical Filter paper
GB/T 6682 Water for Analytical Laboratory Use — Specification and Test Methods
FZ/T 01023 Instrumental Assessment of the Degree of Staining of Adjacent Fabrics
3 Principles
3.1 Washing method
Place test sample in specified washing solution and perform mechanical stirring under specified bath ratio, time and temperature conditions; after washing and drying, assess the staining of test sample with gray scale for assessing staining or instruments.
3.2 Immersion method
