Segment Dyeing Technology of Short Color Distance Segment Dyeing Yarn

Abstract

The invention discloses a section dyeing process of short-color-distance section dyed yarn. The process includes the following steps of firstly, preprocessing yarn, so the water content of yarn is consistent; secondly, swinging yarn, wherein a plurality of partition discs are arranged in a tray according to the distance between every two adjacent color sections, so yarn is attached to the surfaces of all the partition plates; thirdly, conducting dip dyeing, wherein dyes at different colors are poured in the different partition discs according to the color matching scheme, and then standing; fourthly, conducting steaming, wherein yarn standing for a period of time is steamed together with the discs, so solid fixing is completed; fifthly, sequentially conducting hanging type drip flushing and washing and soap boiling on steamed yarn to remove unfixed dyes, wherein multiple times of flushing with water temperature gradually increased are adopted for the hanging type drip flushing and washing; sixthly, conducting drying. The color firmness and purity of section dyed yarn are improved.

Description

technical field [0001] The invention relates to the field of textiles, in particular to a segment dyeing process of short color distance segment dyed yarn. Background technique [0002] Space dyeing is the dyeing of three or more different colors on a skein of yarn or fabric. The space dyeing process is generally completed by spraying dyeing liquor on the scouring yarn, directly washing, soaping, and drying. However, the existing process still has certain defects. It lacks a high-temperature color-fixing process for cotton dyed with reactive dyes. , the color fastness of the section dyeing of cotton yarn cannot be guaranteed; the existing technology relies on the pressure of the partition to block the dye solution, but the cotton fiber has good dye transferability, and color mixing is easy to occur, resulting in impure color. [0003] In view of this, the inventor has developed the space dyeing process of short color distance space dyed yarn for this reason, effectively sol...

AI Technical Summary

Problems solved by technology

The space dyeing process is generally completed by spraying dyeing liquor on the scouring yarn, directly washing, soaping, and drying. However, the existing process still has certain defects. It lacks a high-temperature color-fixing process for cotton dyed with reactive dyes. , the color fastness of the segment dyeing of cotton yarn cannot be guaranteed; the existing technology relies on the pressure of the partition to block the dye solution, but the cotton fiber has good dye migration and is prone to color mixing, resulting in impure color

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