The main quality index of chemical fiber

10. Wear resistance of fiber

Fibers and their products are worn due to constant friction during processing and actual use. The wear resistance of the fiber refers to the resistance of the fiber to external wear.

The wear resistance of fiber is closely related to the fastness of textile products. Wear resistance is an important index of wear performance of clothing fabric. The wear resistance of fiber is related to the macromolecular structure, supramolecular structure, elongation at break and elasticity of fiber.

The order of the wear resistance of common fibers is nylon > polypropylene > Vinylon > ethylene fiber > Polyester > Acrylic > Chlorylon > wool polysilk > cotton > hemp > rich fiber > copper ammonia fiber > viscose fiber > acetate fiber > glass fiber.

11. Light resistance and stability

The stability of the sunlight and the atmosphere is one of the stability indicators of the fiber, also known as weather resistance, which is a measure of the ability of the fiber to resist the performance changes caused by climatic conditions.

Light resistance refers to the mechanical properties of fibers that remain unchanged after exposure to light. The stability of the effect on the atmosphere refers to the performance of the fiber after being exposed to light, oxygen, heat and water in the air for a long time, without degradation or photooxidation, and without color change.

The light resistance of chemical fiber is related to the composition of molecular chain, the formation of main chain bond and crosslinking bond, the vibration energy and conversion of molecular groups, the aggregation structure of fiber, and the intensity of light radiation, irradiation time and wavelength.

The change of fiber properties caused by climate conditions is mainly caused by sunlight and oxygen in the air, so improving the stability of the fiber's light resistance to the atmosphere is to improve its light stability and oxygen stability.