A dyeing and sizing process of tencel/coolmax fiber elastic core-spun yarn

Abstract

The present invention separates a dyeing and sizing process of Tencel / Coolmax fiber elastic core-spun yarn, comprising the following steps: step S1 warping, step S2 warp beam dyeing pretreatment, step S3 warp beam dyeing, step S4 soaping and color fixing , step S5 foam sizing. The technology involved in the invention effectively solves quality problems such as warping kink, dyeing burst, color difference, and inconsistent elasticity of the inner and outer layers through the adjustment of gray yarn warping, dyeing pretreatment, and dyeing process parameters, and realizes elastic core wrapping. Beam dyeing of yarn. Before the pre-dyeing process, the circulation mode of the normal pre-treatment pump was changed, and the warp beam was put into the dye vat to soak in water first, and then the reverse pump was turned on to circulate, so as to solve the problem of warp beam dyeing explosion. After warping, a layer of low-permeability material is coated on the outside of the warp beam to solve the problems of color pattern, inner and outer layers, and elastic inconsistency. And compared with dyeing first and then warping sizing, it can reduce yarn hairiness and neps.

Description

technical field [0001] The invention relates to the technical field of yarn sizing, in particular to a dyeing and sizing process of Tencel / Coolmax fiber elastic core-spun yarn. Background technique [0002] Yarn dyeing methods are mainly hank dyeing, cheese dyeing and warp beam dyeing. Compared with the other two dyeing methods, warp beam dyeing is to wind the yarn on the warp beam, dye the warp beam directly, and then sizing, which greatly shortens the process flow, reduces energy consumption and improves production efficiency. Purpose. The most prominent feature is that when producing high-difficulty yarn-dyed varieties, it greatly reduces the defects of color difference stripes and uneven dyeing, which has played a significant role in improving product quality. At present, cheese dyeing is the main method for elastic yarn dyeing, but the color difference between the inner and outer layers of elastic yarn drum dyeing is serious, and stripes are easy to appear, especially...

AI Technical Summary

Problems solved by technology

At present, cheese dyeing is the main dyeing method for elastic yarn, but the color difference between the inner and outer layers of elastic yarn dyeing is serious, and stripes are easy to appear, especially on full-color cloth, which seriously affects the quality of the cloth surface.

However, when the uniaxial weight of the elastic core-spun yarn is less than 20Kg, the cotton yarn count is greater than or equal to 50 / 1, and some non-pure cotton varieties are used in the sizing process of the warp beam dyeing process, two or more threads are easy to Kinked together, which in turn leads to warp sticking and twisting of the produced yarns during the weaving process, resulting in warp breaks and weaving defects, which not only affect the style of the fabric surface, produce fabric surface defects, and some also produce fabric surface defects. Holes, severe cases will cause the problem of defective cloth and other cloth

There is no report on beam dyeing sizing process of Tencel / Coolmax fiber elastic core-spun yarn

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