Pure polyester yarn is made of polyester staple fiber by spinning, and its staple fiber has different categories, from length to cotton type fiber, the length is around 37mm, there is medium length fiber, the length is 51mm-57mm, there is wool type fiber, the length is 75mm-105mm. From the thickness of the fine denier fibers, in about 1.5 D, there are coarse denier fibers in about 5 D, there is also in between about 3D, of course, there are finer such as 1 D, even ultra-fine fibers such as 0.1-0.5 D. Yarn is very fine, such as in 50 60, good with fine denier fibers spinning, so easy to spin uniform, good dry, less hairiness, if the fiber is longer, can increase the holding force, strength is also better, spinning into the Yarn feel fine, on the contrary, coarse denier yarn feel rough, hairy feel better. And so on. When spinning polyester staple fiber yarn, it is important to specify how thick the fiber is, what the length is, and generally know where the staple fiber is from.
It has the characteristics of strong and durable, good elasticity, not easy to deformation, corrosion resistance, insulation, stiffness, easy to wash and dry quickly, etc. Polyester fabric has high strength and elastic recovery, therefore, its firm and durable, iron-free. Polyester fabric, not deformed, has good washable performance. Polyester is a good heat-resistant fabric in combined fabrics, with thermoplastic, can be made into pleated skirts, pleats. Polyester fabric has good light resistance, and its sunlight resistance is better than the sky-dyed fiber fabric. Especially the sun resistance behind the glass is very good, almost on a par with acrylic. Polyester fabric has good resistance to various chemicals.
Acid, alkali damage to its degree are not large, while not afraid of mold, not afraid of insects. Polyester has a wide range of uses, and is used in large quantities in the manufacture of clothing and industrial products. Polyester as a clothing fiber, its fabric after washing to achieve the effect of non-wrinkle, non-iron. Polyester is often blended or interwoven with various fibers, such as cotton polyester, wool polyester, etc., widely used in a variety of clothing and decorative materials. Polyester can be used in industry for conveyor belts, tents, canvas, cables, fishing nets, etc. Especially polyester cord for tires, which is close to nylon in terms of performance. Polyester can also be used for electrical insulation materials, acid-resistant filter cloth, medical industry with cloth, etc. Polyester is an important variety of synthetic fiber, is the trade name of our polyester fiber.
Polyester has a wide range of uses, and is used in large quantities to make clothing fabrics and industrial products. Polyester has excellent shaping properties. Polyester yarn or fabric after shaping generated by the flat, fluffy form or pleats, etc., in use by many times in the wash, still can be unchanged. It is loved by people. Polyester fiber is the total amount of all textile fibers processed in the chemical fiber varieties, the development of differentiated varieties, to improve the added value of products, improve the economic efficiency of enterprises, the impact of the entire chemical fiber industry is crucial; product differentiation is the direction of development of polyester, and China's polyester fiber production enterprises along this direction. Therefore the polyester industry still has great potential for development.