1. High strength
The strength of polyester staple fiber is 2.6-5.7 cN/dtex, and the strength of high-strength fiber is 5.6-8.0 cN/dtex. Because of its low hygroscopicity, its wet strength is basically the same as that of dry strength. The impact strength is 4 times higher than nylon and 20 times higher than viscose.
2. Good elasticity.
Elasticity is close to wool, and when the elongation is 5%~6%, it can almost completely recover. Wrinkle resistance is better than other fibers, that is, the fabric does not wrinkle and has good dimensional stability. The modulus of elasticity is 22-141 cN/dtex, which is 2-3 times higher than nylon. Polyester fabrics have high strength and resilience, so they are durable, wrinkle-resistant and ironing-free.
3. Heat-resistant polyester fibers are made by melt spinning. The formed fibers can be melted by heating again, which belongs to thermoplastic fibers.
Polyester fibers have higher melting point, smaller specific heat capacity and thermal conductivity, so they have higher heat resistance and insulation. It's good in synthetic fibers.
4. Good thermoplasticity and poor melting resistance
Because of its smooth surface and close arrangement of internal molecules, polyester is a good heat-resistant fabric in synthetic fabrics. It has thermoplasticity and can be made into pleated skirts with long pleats. At the same time, polyester fabrics have poor melting resistance and are prone to form holes in the presence of soot and Mars. Therefore, when wearing, should try to avoid contact with cigarette butts, sparks and so on.
5. Good wear resistance
Wear resistance is second only to nylon with good wear resistance, which is better than other natural fibers and synthetic fibers.
6. Good light resistance
Light resistance is second only to acrylic fibers. The light resistance of polyester fabric is better than that of natural fiber fabric except acrylic fiber. Especially in the back of the glass, the sun resistance is very good, almost equal to acrylic fibers.
7. Corrosion resistance
It is resistant to bleaching agents, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. Resistant to dilute alkali, not afraid of mildew, but hot alkali can decompose it. It also has strong acid and alkali resistance and ultraviolet resistance.
8. Has poor dyeability, but good color fastness and is not easy to fade.
Because there is no specific Dyeing Group on the molecular chain of polyester and the polarity is small, dyeing is difficult, dyeability is poor, and dye molecules are not easy to enter the fiber.
9. It has poor hygroscopicity, hot feeling, static electricity and dirty dust, affecting beauty and comfort.
However, it is easy to dry after washing, and the wet strength hardly decreases. It does not deform and has good washability and wearability.
As a professional manufacturer and supplier, we provide high-quality products. If you are interested in our products or have any questions, please feel free to contact us.
