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 most outstanding advantage of polyamide fiber is that it has superior wear resistance than other fibers, followed by its good elasticity, its elastic recovery rate is comparable to wool, and its weight is light, with a specific gravity of 1.14. Among the commercially available synthetic fibers, it is second only to polypropylene (polypropylene fiber, with a specific gravity of less than 1), It is lighter than polyester fiber (with a specific gravity of 1.38), so polyamide fiber can be processed into fine, uniform, soft and smooth silk for weaving beautiful and durable fabrics. In addition, it has the same advantages as polyester fiber, such as corrosion resistance, no fear of moth damage, and no fear of mildew.