Color fastness refers to the resistance of textile color to various effects during processing and use. The fastness level was evaluated based on the discoloration of the sample and the staining of the undyed lining fabric. Textile color fastness testing is a routine testing item in textile intrinsic quality testing.
Color fastness refers to the washing and rubbing resistance of the product. Qualified color fastness and poorness are directly related to the health and safety of the human body. Rejected Products With poor color fastness will encounter rain and sweat during the wearing process, which will cause the pigment on the fabric to fall off and fade. The molecules and heavy metal ions of the dye are all included. It may be absorbed by the body through the skin and endanger the health of the human skin. On the other hand, it may affect other clothing worn on the body, or other clothes that are dirty when washed with other clothes. The so-called color fastness (referred to as color fastness) means that the dyed fabric is subjected to external factors during the use or processing (extrusion, rubbing, washing, raining, exposure, light, seawater impregnation, saliva impregnation, water stain, perspiration). Etc.) The degree of fading under the action is an important indicator of fabric.
Because the conditions encountered in the processing and use of fabrics vary greatly, the requirements are different. Therefore, most of the current test methods are simulated or comprehensive tests according to the environment and conditions of action, so the test method of dye fastness The content is quite extensive. But looking at the International Standards Organization (ISO), the American Association of Dyers and Chemists (AATCC), Japan (JIS), the United Kingdom (BS) and many other standards, the most commonly used are wash, light, rub and sweat resistant, resistant Ironing, weather resistance, etc. In actual work, the test items are mainly determined according to the end use of the product and the product standard. For example, the wool textile product standard must test the color fastness to sunlight, and the knitted underwear must be tested for perspiration fastness, while outdoor use Textiles (such as parasols, light boxes, and cover materials) are of course tested for weather fastness.
Corresponding standards:
1. Color fastness to washing ISO 105 C06: 1994/Cor.2:2002(E): Colour fastness test for textiles Part C06: Colour fastness to household and commercial washing BS EN ISO 105-C06: 1997: Textile colours Fastness test Part C06: Colour fastness to household and commercial washes
2, dry cleaning color fastness ISO105 D01:1993/BS EN ISO105 D01:1995: textile color fastness test fast dry fastness
3. Color fastness to water resistance ISO 105 E01: 1994/Cor.1:2002(E): Textiles Color fastness test Color fastness to water
4. Color fastness to sea water ISO 105 E02: 1994/Cor.1:2002(E): Textiles Color fastness test Color fastness to sea water
5. Color fastness to perspiration ISO 105 E04: 1994/Cor.1:2002(E) : Test method for color fastness to perspiration of textiles
6. Color fastness to dry heat ISO 105 P01: 1993: Color fastness test of textiles Dry heat resistance (except hot press) Color fastness BS EN ISO 105-P01: 1995: Textile color fastness test resistance to dry heat (hot pressing Except) color fastness
7. Color fastness to rubbing BS1006 X12:1990: Textiles Color fastness test Color fastness to rubbing EN ISO105 X12:2002: Textiles Colour fastness test Colour fastness to rubbing
8. Heat fastness to heat BS EN ISO 105 X11: 1996: Textiles Color fastness test Heat fastness
9. Light color fastness GB/T8427-1998 Textiles Resistance to artificial light fastness
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