Production process of cotton stretch yarn warp beam dyeing

Abstract

The invention provides a production process of cotton stretch yarn warp beam dyeing. The process comprises the steps of raw yarn beam-warping, dyeing pretreatment, dyeing and warp sizing. By adjusting the process parameters of the raw yarn beam-warping, the dyeing pretreatment and the dyeing, the quality problems of beam-warping twisting, shaft blasting during dyeing, chromatic aberration and inconsistent elasticity between an inner layer and an outer layer are solved, and the cotton stretch yarn warp beam dyeing is realized. Specifically speaking, the raw yarn beam-warping changes yarn crossing paths through adjusting the position of a tension rod of a cylinder stand of a warper, meanwhile, the closing reaction time of a tension piece is shortened to solve the twisting problem of stretch yarns in the beam-warping process; before the process of dyeing pretreatment, the circulating mode of pretreating a totally positive pump in the past is changed, the warp beam is put into a dye vat, water is added for dipping firstly, and then the anti-pump circulation begins, so that the problem of shaft blasting during warp beam dyeing is solved.

Description

technical field [0001] The invention relates to a warp beam dyeing process. 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 dyeing method for elastic cotton yarn, but the color difference between the inner and outer layers of elastic yarn drum dyeing is serious, and stripes are easy to appear, especially on full-color cloth, which seriously affects the quality of the cloth surface. However, warp...

AI Technical Summary

Problems solved by technology

At present, cheese dyeing is the main dyeing method for elastic cotton yarn, but the color difference between the inner and outer layers of elastic yarn 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, warp beam dyeing of elastic yarn has problems such as warping kink, dyeing burst, and inconsistent elasticity of inner and outer layers.