Color fastness testing is an important method to evaluate the ability of textiles to retain color during use and washing. It involves testing whether the fabric will fade or change color under different conditions (such as rubbing, washing, exposure to sunlight). These tests are applicable to a variety of textiles, but are particularly important in the following categories of products:

Clothing fabrics: such as denim, silk, cotton, etc., especially clothes that are worn daily and washed frequently.

Home textile products: such as bedding, curtains and carpets, they need to withstand the test of sunlight, washing and wear and tear.

Outdoor products: Fabrics for tents, awnings and outdoor furniture that need to withstand the effects of sunlight and climate change.

Automotive interiors: such as seats, carpets, etc. These materials need to maintain color consistency under different temperature and humidity conditions.

By using precision equipment such as spectrophotometers and colorimeters, manufacturers can accurately measure color fastness and improve dyeing processes and material selection based on the results to ensure that the final product has good color stability in actual use.