What is the difference between pure polyester yarn and polyester yarn

Common characteristics of polyester yarn, are high strength. Due to its low hygroscopicity, its wet strength is basically 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. Good elasticity. The elasticity is close to wool, and it can almost fully recover when it is stretched 5-6. The wrinkle resistance exceeds that of the fibers, that is, the fabric does not wrinkle and has good dimensional stability. Good heat resistance. The surface of polyester is smooth, the internal molecules are closely arranged, and the molecules lack hydrophilic structure, so the moisture regain is very small and the moisture absorption performance is poor. Good abrasion resistance. The abrasion resistance is second only to nylon with good abrasion resistance and is better than both fibers and synthetic fibers. Good lightfastness. Lightfastness is second only to acrylic. preservative. Resistant to bleaches, oxidants, hydrocarbons, ketones, petroleum products, and inorganic acids. Dilute alkali resistance, not afraid of mildew, but hot alkali can make it. The color of polyester yarn is naturally white, and the brightness and semi-matte untreated natural white color have excellent optical properties, high whiteness, high strength and toughness, and good uniformity.
Application: yarn for weaving, yarn for grey fabric, air-jet loom, the water-jet loom can be used for warp.
Full-gloss polyester yarn: The surface of the polyester fiber is smooth, and the surface of the woven fabric has a strong luster.
Semi-gloss polyester yarn: The fabric woven with full-gloss polyester yarn is chemically reduced by the dyeing factory, which is to take advantage of the poor resistance of polyester material to strong alkali, and use the treatment to cause micro-cracks on the surface of polyester fibers, resulting in extinction. effect. The semi-gloss polyester fabric has a generous appearance and is welcomed by the market. Semi-gloss polyester yarn can also be understood as cracking or roughening the fiber surface by various physical/chemical methods in the fiber manufacturing process, and the woven fabric has the same effect as the above-mentioned fabric weight reduction treatment.

The advantages of pure polyester yarn, pure polyester yarn is made of polyester staple fiber by warp spinning, and its staple fiber has different categories. From the length, it can be divided into the cotton fiber, the length is about 37 mm, and there are medium and long fibers. The length is 51mm-57mm, with hairy fibers, and the length is 75mm-105mm. In terms of thickness, there are fine denier fibers, which are around 1.5D, coarse denier fibers around 5D, and intermediate 3D fibers. Of course, there are finer fibers such as 1D and even ultra-fine fibers such as 0.1-0.5D. The yarn is as fine as 50 to 60, and it is spun with fine denier fibers, which are easy to spin evenly, have good evenness, and have less hairiness. If the fibers are longer, it can increase the cohesion and strength, and the spun yarn feels fine and fine. On the contrary, the rough denier yarn feels rough and has a better wool feel. etc. When spinning polyester staple fiber yarn, it is necessary to know how thick the fiber is, how long it is, and generally, know where the staple fiber is produced. Has a "wash and wear" feature.
use:
Filament: often used as a low-elasticity filament to make various textiles;
Staple fiber: cotton, wool, linen, etc. can be blended;
Industry: tire cords, fishing nets, ropes, filter cloths, insulating materials, etc.
Polyester is currently the most used chemical fiber.