Spandex core-spun yarn production technology

Abstract

The invention discloses a spandex core-spun yarn production technology. The technology comprises the following steps of 1 pre-processing, 2 electrostatic spraying and 3 high temperature curing. In the above way, according to the technology, through adjustment of working procedures, the high strength is maintained, the elasticity is uniform, the short fibre content is significantly reduced, obtained yarn is retainable in size, straight, smooth, clean and good in toughness.

Description

technical field [0001] The invention relates to a production process of spandex 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 is short fiber and short-fiber core-spun yarn developed with cotton fiber as the skin and polyester spun yarn as the core. The elastic yarn fabric made of medium-length wool-like fiber polyester viscose spandex elastic core-spun yarn has good wool feeling, and has the characteristics of softness, comfort, freedom of movement, stable size and wrinkle-free. 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 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 be blistered, commonly known as "skirt wrinkle", which s...

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