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Polyester properties:

1. High fiber strength, with high-strength fibers ranging from 5.6 to 8 OcN/dtex, poor moisture absorption, and similar wet and dry strength.

2. The initial modulus of polyester is high, and the industrial yarn can reach 1325cN/dtex.

3. The fiber has good elasticity, with a recovery rate of 96% and good dimensional stability.

4. Good heat resistance, with a melting point of 255-260 ℃.

5. Polyester fabric shrinks very little or almost never.

Application: Polyester filament was initially used in clothing, but with the development of various processing technologies, it has expanded to the entire clothing industry, including imitation wool, imitation linen, imitation cotton, and has also developed into industries, decoration, and non fiber fields. Industrial use includes sewing thread, curtain thread, conveyor belts, ropes, filter cloth, etc.

There are many varieties of polyester filament, which can be classified by product, purpose, line density, and luster. The commonly used products are divided into the following categories: primary silk, stretched silk, and deformed silk.

The new varieties of polyester filament include differentiated fibers, functional fibers, and simulated fibers. In recent years, with the development of silk like technology, polyester single fibers have shifted towards finer fibers and can now produce ultra fine fibers with a line density of 0.00011dtex.