Colour Fastness of Coated and Printed Textiles
topic
Colour fastness testing of coated and printed textiles evaluates rubbing fastness per ISO 105-X12 measuring colour transfer to standard rubbing cloth at defined pressure and stroke count, washing fastness per ISO 105-C06 measuring colour change after simulated laundering, light fastness per ISO 105-B02 using xenon arc exposure, and perspiration fastness per ISO 105-E04 for skin-contact coloured coatings and prints that must not transfer to skin during wear.
Role
Verifies that coated and printed textile colours maintain their appearance and do not transfer to skin or other surfaces during the conditions of consumer use, laundering, and light exposure, with rubbing fastness being particularly critical for coated fabrics where loose pigment at the surface from under-cured binder systems would cause rapid colour transfer to skin and other surfaces that represents both a quality failure and a potential skin sensitisation concern for regulatory compliance.