Polyester drawn textured yarn and production process thereof

Abstract

The invention discloses a polyester drawn textured yarn, which is continuously produced by polyester. The polyester drawn textured yarn is characterized in that the specification is 75D / 288F, and a product has excellent performance. The invention also discloses production process thereof, which comprises the following steps of: performing esterification reaction on pure terephthalic acid and glycol serving as raw materials; then performing pre-polycondensation and final polycondensation to prepare polyester melt for direct spinning; and adopting a POY-DTY circular blast cooling process route, wherein the viscosity of the prepared polyester melt is 0.650. The production process has the advantages of reasonable process, good fiber spinnability, excellent physical indexes, few broken filaments and broken ends, high switching success ratio, 95 percent of full-package rate, smooth subsequent processing, light and soft texture and good style of woven fabrics, and application in fabrics and linings of high-grade down jackets and fabrics of sportswear and casual wear.

Description

technical field [0001] The invention relates to a synthetic fiber and its production process, in particular to a 75D / 288F polyester low elastic yarn and its production and processing process. Background technique [0002] As one of the three main fibers in synthetic fibers, polyester is widely used in clothing fabrics and other non-clothing fields because of its excellent physical and chemical properties. Since its inception, polyester products have also been used by downstream users as the main textile raw material for weaving various textiles due to their good drapability, high strength, crispness, and resistance to tending. With the globalization of the economy and the internationalization of the market, people's requirements for clothing are getting higher and higher. Not only must they be comfortable, but they must also be functional. There is a constant need to improve performance to meet weaving requirements. Due to its good characteristics such as high coverage, so...

AI Technical Summary

Problems solved by technology

[0003] In the patent CN101139735A "A Preparation Method for Ultra-Fine Denier Polyester Filament", it is introduced that the method adopts the side blowing cooling process. During the spinning process, the height of the windless zone is adjusted, the slow cooler is added, and the spinneret is improved. The arrangement of the holes and the oiling method can successfully produce ultra-fine polyester filaments, but the ultra-fine polyester filaments produced by side blowing are poor in terms of evenness and other physical properties, and cannot meet the requirements of high-end fabric weaving. Require

[0004] In view of the problems in the production process of the microfiber produced by the side blowing cooling process and the poor physical properties such as evenness and dyeing performance, we have developed a superfine fiber produced on the ring blowing device. With excellent physical properties, it can meet the weaving requirements of high-grade clothing fabrics