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Dyeing method of cotton yarns

A dyeing method and yarn technology, which is applied in the field of textile printing and dyeing, can solve problems such as high difficulty, dyes cannot effectively penetrate yarn fibers, and unstable quality, and achieve the effects of improving diffusion performance, improving dyeing permeability, and increasing dyeing depth

Active Publication Date: 2012-08-01
ZHANGJIAGNAG SUNDELI DYEING & FINISHING
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Problems solved by technology

[0005] The technical problem to be solved by the present invention is to solve the problem that coating and dyestuff cannot effectively penetrate into the yarn fiber in the continuous pad dyeing of cotton-containing yarn, improve the dyeing fastness, improve the dyeing penetration, increase the dyeing depth, and solve the problem of deep dyeing. Problems with high difficulty and unstable quality

Method used

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  • Dyeing method of cotton yarns
  • Dyeing method of cotton yarns

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Embodiment 32

[0014] The production process of the present embodiment 32s / 2 pure cotton dyed yarn is as figure 1 As shown, the main process conditions are as follows:

[0015] 1. Padding cationic modification solution. The 32s / 2 pure cotton raw yarn that has been warped into a shaft is directly immersed in the cationic modification solution in the rolling tank without scouring process or pretreatment process with scouring effect, and is rolled by a rolling machine, in this way Two dipping and two rolling. The composition of cationic modification solution is: cationic modifier CL-200 20g / L purchased from Guangzhou Xiangzhong Textile Chemical Co., Ltd., non-ionic penetrant AG-310 3g / L purchased from Guangdong Lingjie Manufacturing Chemical Co., Ltd. , soda ash 8g / L.

[0016] The ultrasonic wave is turned on 3 minutes before the yarn enters the rolling groove, and lasts until it is turned off after dyeing. Ultrasonic frequency is 40kHz, power density is 0.5W / cm 2 . The temperature of the...

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Abstract

The invention relates to a dyeing method of cotton yarns. The dyeing method comprises a cation modified solution padding process, a drying process, a dyeing solution padding process and a color fixing process, which are carried out in sequence, wherein in the cation modified solution padding process, base yarns are padded in a cation modified solution subjected to ultrasonic cavitation treatment.With the method, the problems of color fastness, core penetration degree and color depth of a cotton yarn continuous pad dyeing technology are solved, a scouring or pretreatment process with a scouring effect before and during a dyeing process can be omitted, and energy consumption and pollution emission during the scouring or in a pretreatment process with the scouring effect are eliminated fromthe sources.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to the dyeing and finishing treatment of cotton-containing dyed yarn used in fabrics such as knitting, yarn-dyed weaving and denim. Background technique [0002] The dyeing of dyed yarns containing cotton components used in knitted, yarn-dyed, denim and other fabrics usually adopts dyeing techniques such as hank dyeing, cheese dyeing, warp beam dyeing, and sizing-dyeing combined machine dyeing. These dyeing techniques have obvious disadvantages: first, the dyeing process consumes a lot of water, consumes a lot of energy, and discharges heavy waste water; The pectin, wax and impurities on the yarn can improve the hydrophilicity and capillary effect of the yarn, and facilitate the penetration of dyes. However, the pretreatment process also consumes a lot of water, consumes a lot of energy, and discharges heavy sewage. At the same time, the pectin, wax, and impurities remove...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P3/60D06P3/66D06P3/82D06M23/00D06M101/06
Inventor 马新华李汝龙梅建忠蔡慧琴朱礼青郝彦磊
Owner ZHANGJIAGNAG SUNDELI DYEING & FINISHING
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