Polyester low-elastic yarn also has the function of sewing. The hemming is also called hemming. All pieces of clothing need this process. Because the main purpose of hemming is to prevent the yarns of the cutting piece from falling off, the strength of the hemming line is not high. In order to save costs, the trimming thread is generally made of polyester network yarn without twisting, and its strength is lower than that of sewing thread. It differs from ordinary sewing threads in that the trimming thread is made of polyester filaments without twisting, while the sewing thread is made of polyester staple fibers and twisted.
1. Poor dyeability, but good color fastness, not easy to fade.
2. Good abrasion resistance. Abrasion resistance is second only to nylon with the best abrasion resistance, and better than other natural and synthetic fibers.
3. Heat resistance and thermal stability are the best among synthetic fiber fabrics.
4. High intensity. The short fiber strength is 2.6 to 5.7 cN / dtex, and the high strength fiber is 5.6 to 8.0 cN / dtex. Due to its low hygroscopicity, its wet strength and dry strength are basically the same. The impact strength is 4 times higher than nylon and 20 times higher than viscose fiber.
5, good flexibility. The elasticity is close to wool, and when it is stretched by 5% to 6%, it can be almost completely restored. Wrinkle resistance is better than other fibers, that is, the fabric does not wrinkle and has good dimensional stability. The elastic modulus is 22 to 141 cN / dtex, which is 2 to 3 times higher than nylon.
6. Good light resistance. Lightfastness is second only to acrylic.
7. The polyester surface is smooth, and the internal molecules are arranged closely.
,preservative. Resistant to bleach, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mildew, but hot alkali can make it decompose.
Polyester low-elastic yarn is a type of textured yarn of polyester chemical fiber. It uses polyester chips (PET) as raw materials. The sewing thread manufacturer uses high-speed spinning polyester pre-oriented yarn (POY), and then draws false twist processing . It has the characteristics of short process, high efficiency and good quality. Polyester low-elastic yarn has the characteristics of general polyester with high breaking strength and elastic modulus, excellent heat setting property, good resilience, heat resistance, light resistance, strong corrosion resistance, easy washing and quick drying, etc. High performance, good heat insulation, comfortable feel, soft luster, etc.