Polyester staple fiber suppliers introduce the characteristics and uses of polyester
1. High strength: The strength of polyester fiber is nearly 1 times higher than that of cotton and 3 times higher than that of wool. Due to its low hygroscopicity, its wet strength is essentially the same as its dry strength. The impact strength is 4 times higher than that of nylon and 20 times higher than that of viscose fiber.
2. Good elasticity: the elasticity is close to that of wool, and when it is stretched by 5%~6%, it can be almost completely recovered. Polyester fabric has high strength and elastic recovery ability, so the fabric does not wrinkle, has good dimensional stability, and is durable.
3. Good heat resistance: Polyester is a thermoplastic fiber with a relatively high melting point and can be used at 70-170°C, but its specific heat capacity and thermal conductivity are small, so the heat resistance and heat insulation of polyester staple fiber are the best among synthetic staple fibers. OK
4. Good thermoplasticity, poor melting resistance: Due to the smooth surface of polyester and the tight arrangement of internal molecules, polyester has the best heat resistance among synthetic fabrics. At the same time, the melting resistance is poor, and the polyester fabric is easy to form holes when encountering soot and sparks.
5. Good wear resistance: The wear resistance of polyester staple fiber ranks second among synthetic fibers, second only to nylon with the best wear resistance.
6. Corrosion resistance: It can resist bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids, and has strong acid and alkali resistance and ultraviolet resistance.
7. The dyeability is poor, but the color fastness is good, and it is not easy to fade: because there is no specific dyeing group on the polyester molecular chain, and the polarity is small, it is difficult to dye, the dyeability is poor, and the dye molecules are not easy to enter the fiber .
8. Poor hygroscopicity and air permeability: Polyester fabrics feel stuffy when worn, easily charged with static electricity and stained with dust, which affects the appearance and comfort, but it is easy to wash and dry quickly without deformation.
Polyester is widely used, mainly used in cotton spinning industry, spinning alone or blended with cotton, viscose fiber, hemp, wool, vinylon, etc. The obtained yarn is mainly used for clothing weaving, and can also be used for home decoration fabrics and packaging Cloth, padding and insulation. Due to its permanent flame retardancy, flame-retardant polyester not only plays an irreplaceable role in industrial textiles, architectural interior decoration, and vehicle interior decoration, but also plays a lot of roles in the field of protective clothing. In addition to pure flame-retardant polyester, we can produce flame-retardant, low-melting point, water-repellent, anti-ultraviolet, anti-static, silicone and other multi-functional series products according to the special requirements of users.