Production and processing process of ultra-coarse denier polyester filament yarn

Abstract

The invention relates to a production process technique for super-coarse denier polyester filament. The POY processed by spun yarn is submitted for false twist after inspection and equilibration. The precursor fiber is fed by a first roller and enters the twist stop for stop twisting; after being drawn in a first thermal chamber, the fiber is cooled by a cooling plate, then enters the false twister for false-twist texturing, and then enters a network machine to allow the fiber to form a network; after directly passing a second thermal chamber (the temperature of the thermal chamber is closed) and a third roller, the fiber is winded into a spinning cake after oiling in an oiling roller, finally, the whole process is finished after inspecting and packaging the spinning cake obtained. The spun yarn is processed into 400-denier POY by a single spinneret, and then processed into 800-denier DTY by false-twist and bunching combination. The second thermal chamber is closed during the process to provide the finished DTY with high elastic property.

Description

technical field [0001] The invention relates to a synthetic fiber, in particular to a production and processing technology of super thick denier polyester filament. 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 drape, high strength, crispness, and resistance to tending. However, most polyester filament varieties are concentrated between 50 denier and 300 denier. In recent years, polyester filament products such as ultra-fine denier and micro-denier have been developed and produced one after another, but the development and production of coarse denier polyester filament is still rare. do it. [0003] In recent years, most of the ultra-coarse denier ...

AI Technical Summary

Problems solved by technology

However, most polyester filament varieties are concentrated between 50 denier and 300 denier. In recent years, polyester filament products such as ultra-fine denier and micro-denier have been developed and produced one after another, but the development and production of coarse denier polyester filament is still rare. to do

[0003] In recent years, most of the ultra-coarse denier yarns used in geotextiles and carpets in the market are spandex and nylon, but the high prices of spandex and nylon limit the scope of their use, and their popularity is also greatly affected.