"Big Chemical Fiber" refers to the use of relatively sophisticated imported and domestic production equipment, the use of polyester melt direct spinning method or indirect polyester chip spinning method of spinning out of polyester staple fiber. As the "big chemical fiber" products are basically qualified raw materials used grade, so its regular product quality indicators are superior. "Large fiber" polyester staple fiber is the leading raw material of cotton textile industry. "Large fiber" production equipment is to eat "thin grain" equipment.

Polyester fiber characteristics of large

1, high strength. Short fiber strength 2.6 ~ 5.7cN / dtex, high strength fiber 5.6 ~ 8.0cN / dtex. Because of its low hygroscopicity, its wet strength and dry strength are basically the same. High impact strength 4 times higher than nylon, viscose fiber 20 times higher.

2, good elasticity. Elastic close to the wool, when the elongation of 5% to 6%, almost completely restored. Wrinkle resistance than other fibers, the fabric does not wrinkle, good dimensional stability. Elastic modulus of 22 ~ 141cN / dtex, 2 to 3 times higher than nylon.

3, good heat resistance.

4, good water absorption.

5, good wear resistance. Second only to wear-resistant nylon wear the best, more than any other natural fibers and synthetic fibers are good.

6, good light resistance. Lightfastness second only to acrylic.

7, corrosion-resistant. It is resistant to bleaching agents, oxidizing agents, hydrocarbons, ketones, petroleum products and mineral acids. Resistance to dilute alkali, not afraid of mold, but the hot alkali can make it decompose.