There are many factors affecting color fastness, and there are many ways to improve color fastness, such as choosing appropriate dyeing additives, improving dyeing and finishing technology, and strengthening process control, etc., which can improve and improve the color fastness to a certain extent.

Color fastness to washing

Factors affecting the

Color fastness of the dye itself (due to structure), dyeing process, and the way the dye binds to the fiber. It shows that the floating color on the surface of the fabric falls off and touches back.

Improved method

Full soap-washing (Cellulose Reactive Dye)/reduction cleaning (Dacron Disperse Dye) and washing

Adjust dyeing temperature or holding time

Choose high fastness dyestuff (catch cotton for example can consider to use high temperature dyestuff or choose reductive dyestuff, the price also meets expensive

Enhance color fixation after dyeing

Colour fastness to rubbing

Factors affecting the

The color fastness (structure caused) of the dye itself, the dyeing process, the combination of the dye and the fiber, the surface structure and surface finish of the fabric

Improved method

Full soap-washing (Cellulose Reactive Dye)/reduction cleaning (Dacron Disperse Dye) and washing

Adjust dyeing temperature or holding time

Choose dyes with high fastness

Enhance color fixation after dyeing

Reduce the coefficient of friction on the surface of the fabric (e.g. for cotton fabric, remove the hair by enzyme washing to reduce the coefficient of friction on the surface

Friction fastness enhancer (generally can be set when added)

Color fastness to light

Factors affecting the

Color fastness of the dye itself (due to structure), dyeing process, and the way the dye binds to the fiber. Dyes mainly lead to oxidation or reduction reaction of dye parent or color conjugate system under sunlight, resulting in color change, in which the lighter or brighter the color, the worse the light fastness.

Improved method

Choose high-sun dyes (or VAT dyes)

Add sun fastness enhancement agent

Colors and lights are appropriately dimmed

Fully washed and fixed

Add anti-UV additives