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Polyamide long fiber can be used alone or interwoven with other fibers. It can also be twisted into processing silk for knitting or plain weaving. It can be used in underwear for boys and girls' clothing, quilt cover fabrics, socks, raincoats, etc. In addition, polyamide fiber can be used in the outer and inner layers of astronauts' outerwear to protect astronauts from meteorites in outer space with its high strength. In home decoration, it can be used in curtain cloth, shower curtain cloth, umbrella cloth, etc, In industrial use, it can be used for fishing nets, filter cloth, cable, tire cord, liner cloth of wheel conveyor belt and parachute cloth, etc.
The disadvantage of polyamide fiber is that its optical rotation resistance is slightly poor. If it is exposed to sunlight for a long time outdoors, it is prone to yellowing and its strength decreases. Compared with polyester fiber, it has poor shape retention. Therefore, the fabric is not straight enough. Besides, its fiber surface is smooth and has a waxy feeling. In recent years, various improvement measures have been developed for these shortcomings, such as adding light resistant agents to improve optical rotation resistance, or making profiled sections to improve the appearance and luster It can be blended or interwoven with other fibers to improve the handle.
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