Production process of polyester viscose corn-spun yarn

Abstract

Provided is a process for producing polyester viscose corn-spun yarn. Ordinary polyester medium-length fibers, viscose medium-length fibers, high-strength polyester medium-length fibers and spandex filaments are adopted as the raw materials, the ratio of the polyester medium-length fibers to the viscose medium-length fibers is 65:35, and the ratio of the ordinary polyester medium-length fibers to the high-strength polyester medium-length fibers is 60:5; polyester fibers are subjected to scutching, cotton carding and drawing to be prepared into drawn slivers A and rough yarn; the viscose medium-length fibers are subjected to scutching, cotton carding and drawing to be prepared into drawn slivers B and rough yarn; the drawn slivers A and the drawn slivers B which are subjected to roving are mixed with the spandex filaments to be prepared into drawn slivers C, and drawn slivers C are subjected to spinning and automatic winding to be prepared into yarn, and the yarn is inspected, packed and warehoused. The obtained yarn is straight, clean, good in toughness and good in dimension retainability.

Description

Technical field [0001] The invention relates to a production process of polyester-viscose core-spun yarn. Background technique [0002] Core-spun yarn, also known as composite yarn or covered yarn, is a new type of yarn composed of two or more fibers. The original core-spun yarn was short-fiber and short-fiber core-spun yarn developed with cotton fiber as the sheath and polyester spun yarn as the core. The elastic yarn fabric made of medium-length wool-like fiber polyester and viscose spandex elastic core-spun yarn has good wool feeling, soft, comfortable, free movement, dimensional stability and non-wrinkle characteristics. It is used as denim fashion, sportswear, leisure The fabric of clothing is deeply loved by people. Uneven elasticity is the main problem of polyester and viscose core-spun yarn. During the weaving process, due to uneven elasticity, the fabric width will change irregularly, and the fabric surface will blisters, commonly known as "skirt wrinkles", which serio...

AI Technical Summary

Problems solved by technology

Uneven elasticity is the main problem of polyester viscose core-spun yarn. During the weaving process, due to uneven elasticity, the width of the cloth will change irregularly, and the cloth surface will blister, commonly known as "skirt wrinkle", which seriously affects the quality of the cloth surface. Moreover, during the blending process, the fibers are seriously damaged and the short staples increase, resulting in a decrease in the quality of the obtained polyester-viscose core-spun yarn, which in turn brings hidden dangers to the subsequent dyeing and finishing processes.

Polyester-viscosity core-spun yarn containing spandex uses spandex as the core. The spandex filament has a large elastic elongation, which does not contribute to the strength of the yarn in the elastic core-spun yarn. Instead, the elastic rebound destroys the cohesion of the outer fiber and makes it It is so loose that it reduces the strength of the core yarn