Chemical fiber is a fiber with textile properties that is made by using natural polymer compounds or synthetic polymer compounds as raw materials through the preparation of spinning dope, spinning and post-treatment. The fiber length, thickness, whiteness, gloss and other properties can be adjusted during the production process. And they have the advantages of light resistance, abrasion resistance, easy to wash and dry, no mildew, no insects, etc. It is widely used in the manufacture of clothing fabrics, filter cloths, conveyor belts, hoses, ropes, fishing nets, electrical insulation wires, medical sutures, tire cord fabrics and parachutes, etc. Generally, the polymer compound can be made into a solution or melt, pressed out from the pores of the spinneret, and then solidified into fibers. Products can be continuous filaments, short fibers cut to a certain length or uncut tows. As for the trade names of chemical fibers, China tentatively stipulates that synthetic staple fibers are always named "lun", cellulosic staple fibers are always named "fiber" (for example, viscose, cupro-spandex), and filaments are added with the word "silk" at the end. Or change "lun", "fiber", and "silk".
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