Yarn dyeing pretreatment process

Abstract

The invention provides a yarn dyeing pretreatment process, which includes the following steps: step I. cleaning a yarn to be dyed, and steaming the cleaned yarn; step II. dehydrating the yarn after steaming; step III. after the dye is filtered and screened, screening out impurities in the dye; step IV. putting the dehydrated yarn into the dye for dyeing; and step V. drying and packaging the dyed yarn. The yarn quality and yarn density are improved by cleaning and cooking the yarn, which is beneficial to improving the dye uptake of the yarn; and the yarn is dehydrated to prevent uneven dyeing caused by excessive water supply to the yarn, and the dyeing quality of the yarn is greatly improved by detecting the dye.

Description

technical field [0001] The invention relates to the technical field of yarn dyeing pretreatment, in particular to a yarn dyeing pretreatment process. Background technique [0002] The pre-treatment of package yarn dyeing is generally to remove the natural fibers, impurities, dust, oil stains, pigments and other problems inside the yarn fibers. Dyeing with these problems will cause uneven coloring, color flowering, color difference, etc., which will affect the color fastness And the water used in the dye is not good or there are pollutants in the dye, which will also cause problems such as uneven coloring during dyeing. Contents of the invention [0003] Aiming at the deficiencies of the prior art, the object of the present invention is to provide a yarn dyeing pretreatment process so as to improve the quality of production. [0004] The invention provides a yarn dyeing pretreatment process, the steps of the yarn dyeing pretreatment process are as follows: [0005] Step 1...

AI Technical Summary

Problems solved by technology

[0002] The pre-treatment of package yarn dyeing is generally to remove the natural fibers, impurities, dust, oil stains, pigments and other problems inside the yarn fibers. Dyeing with these problems will cause uneven coloring, color flowering, color difference, etc., which will affect the color fastness The problem; and if the water used for the dye is not good or there are pollutants in the dye, it will also cause problems such as uneven coloring during dyeing