What Are The Characteristics Of Polyester Staple Fiber

Mar 24, 2025

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  1. Good wear resistance: Among synthetic fibers, its wear resistance is second only to nylon, and is better than other natural and synthetic fibers, making textiles made of polyester staple fibers more durable.
  2. Excellent elasticity: It is close to the elasticity of wool, and can be almost completely recovered when stretched by 5%-6%, and the elastic modulus is high, 2-3 times higher than nylon. This gives the fabric the characteristics of crispness and wrinkle resistance, dimensional stability, good shape retention, and not easy to deform.
  3. High strength: The strength of staple fibers is 2.6-5.7cN/dtex, and that of high-strength fibers is 5.6-8.0cN/dtex. The impact strength is 4 times higher than that of nylon and 20 times higher than that of viscose fibers, making the products made from them stronger.
  4. Good heat resistance: Made by melt spinning, it is a thermoplastic fiber with a high melting point and good heat resistance among synthetic fibers. But at the same time, its melting resistance is poor, and it is easy to form holes when encountering soot, sparks, etc.
  5. Good thermoplasticity: The internal molecules are closely arranged, the thermoplasticity is good, and pleated skirts can be made, and the pleats are long-lasting.
Poor hygroscopicity: Under normal atmospheric conditions, the moisture regain is only 0.4%. This may cause a stuffy feeling when wearing, and it is easy to carry static electricity and stain dust, but it is very easy to dry after washing, and the wet strength hardly decreases, does not deform, and has good washable and wearable properties.
  6. Acid and weak alkali resistance: The action with concentrated alkali at room temperature or dilute alkali at high temperature will destroy the fiber.
  7. Good color fastness, not easy to fade: Because there is no specific dyeing group on the polyester molecular chain, and the polarity is small, the dye molecules are not easy to enter the fiber.
  8. Corrosion resistance: It can resist bleach, oxidants, hydrocarbons, ketones, petroleum products and inorganic acids. It is resistant to dilute alkali and not afraid of mildew, but hot alkali can decompose it, and it has strong acid and alkali resistance and UV resistance.
  The characteristics of polyester staple fiber are as follows. If you want to know more about the characteristics of polyester staple fiber, you can contact Jiangyin Huacai Textile for more consultation. Professionals will provide you with services.

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