Method for modifying color of cambrayon dyed with active dye by using cationic dye

A technology of cationic dyes and reactive dyes, which is applied to the field of color retouching with cationic dyes after dyeing cotton grey fabrics with reactive dyes, can solve the problems of low utilization rate of dyes, increase of hydrolyzed reactive dyes, adverse environmental effects, etc., so as to eliminate the use of anionic auxiliaries. , Improve the stability and solubility, and avoid the effect of dye precipitation

Active Publication Date: 2017-12-29
ZHEJIANG YINHE PRINTING & DYEING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The pretreatment of the above process is 70 minutes, the dyeing time is 130 minutes, and the soaping time is 82 minutes, totaling 282 minutes, which is equivalent to the whole dyeing process having to be done again. The repair cost is high and time-consuming, which affects production efficiency
Reactive dyes are important dyes for cotton fiber dyeing. General reactive dyes lack sufficient affinity for cotton fibers. There is electrostatic repulsion between cotton fibers and dyes, which limits t

Method used

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  • Method for modifying color of cambrayon dyed with active dye by using cationic dye
  • Method for modifying color of cambrayon dyed with active dye by using cationic dye
  • Method for modifying color of cambrayon dyed with active dye by using cationic dye

Examples

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Effect test

Embodiment 1

[0043] A kind of method for color repairing with cationic dye after reactive dye dyeing of cotton gray cloth, its process step is as follows:

[0044] 1) After the cotton gray cloth is dyed with reactive dyes, it is found that the shade does not match, and the repair gray cloth is first made with cationic dyes, and then the color is repaired in the air-flow dyeing machine;

[0045] 2) After the gray cloth to be repaired is put into the vat, the bath ratio is 1:5, the temperature is raised to 75°C at 4°C per minute and operated for 25 minutes, then the temperature is lowered to 60°C at 2°C per minute, washed with water at 50°C for 12 minutes, and the water is changed once;

[0046] 3) Bath ratio 1:4, heat up to 35°C at 4°C per minute, keep warm for 10 minutes, add glacial acetic acid, DS1230 non-ionic penetrant and sodium sulfate at the same time, run for 10 minutes after adding, and measure the pH value of the dyeing solution at 4- between 5;

[0047] 4) Melt the cationic dye...

Embodiment 2

[0053] A kind of method for color repairing with cationic dye after reactive dye dyeing of cotton gray cloth, its process step is as follows:

[0054] 1) After the cotton gray cloth is dyed with reactive dyes, it is found that the shade does not match, and the repair gray cloth is first made with cationic dyes, and then the color is repaired in the air-flow dyeing machine;

[0055] 2) After the gray cloth to be repaired is put into the vat, the bath ratio is 1:4, the temperature is raised to 80°C at 4.5°C per minute and operated for 20 minutes, and then the temperature is lowered to 60°C at 2.5°C per minute, washed with water at 50°C for 10 minutes, and the water is changed once;

[0056] 3) Bath ratio 1:4, heat up to 40°C at 4°C per minute, keep warm for 10 minutes, add glacial acetic acid, DS1230 non-ionic penetrant and sodium sulfate at the same time, run for 10 minutes after adding, and measure the pH value of the dyeing solution at 4- between 5;

[0057] 4) Melt the cati...

Embodiment 3

[0063] A kind of method for color repairing with cationic dye after reactive dye dyeing of cotton gray cloth, its process step is as follows:

[0064] 1) After the cotton gray cloth is dyed with reactive dyes, it is found that the shade does not match, and the repair gray cloth is first made with cationic dyes, and then the color is repaired in the air-flow dyeing machine;

[0065] 2) After the gray cloth to be repaired is put into the vat, the bath ratio is 1:6, the temperature is raised to 85°C at 5°C per minute and operated for 30 minutes, then the temperature is lowered to 60°C at 2°C per minute, washed with water at 50°C for 15 minutes, and the water is changed once;

[0066] 3) Bath ratio 1:4, heat up to 45°C at 4°C per minute, keep warm for 10 minutes, add glacial acetic acid, DS1230 non-ionic penetrant and sodium sulfate at the same time, run for 10 minutes after adding, and measure the pH value of the dyeing solution at 4- between 5;

[0067] 4) Melt the cationic dye...

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Abstract

The invention relates to a method for modifying the color of cambrayon dyed with an active dye by using a cationic dye. By virtue of glacial acetic acid, the stability and the solubility of a dye are improved, and the color-light variations of the dye are reduced; By virtue of anhydrous sodium sulfate, neutral electrolyte has a slow dyeing function, and a uniform dyeing effect is achieved; By virtue of a DS1230 nonionic penetrant, the penetration property of the cambrayon is improved, the cationic dye can uniformly penetrate into a cotton fiber, and a uniform dyeing effect is achieved. A method that the cambrayon is recolored by using an active dye inside a rope-like dyeing machine is changed, a color modification method of the cationic dye is used instead, the cationic dye is solidly combined with the fiber, and then a dyeing effect that the fastness of the cambrayon is improved and the modification efficiency is relatively high is achieved.

Description

technical field [0001] The invention relates to a method for color repairing of cotton gray cloth, in particular to a method for color repairing of cotton gray cloth with cationic dyes after being dyed with reactive dyes with simple process, fast color repair speed and good accuracy. Background technique [0002] In the dyeing process of cotton gray fabrics, the proportion of shade repair in the head vat is getting higher and higher. At present, reactive dyes are used in the dyeing machine to repair the color in the dyeing machine. [0003] In general, reactive dyes are used for color correction, the formula is as follows, and the dye auxiliaries are configured according to the following mass percentages: materials for degreasing and solidification: 2% soda ash, 1% DS1130 same-bath degreaser, 0.5% glacial acetic acid. [0004] Dyeing materials: KN-B black 0.3%, 3BF red 0.15%, 3RF yellow 0.1%, Yuanming powder 20%, soda ash 10%. Soaping materials: 0.5% glacial acetic acid, 0....

Claims

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Application Information

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IPC IPC(8): D06P1/00D06P1/653D06P1/673D06P3/60D06P5/02
CPCD06P1/00D06P1/6533D06P1/6735D06P3/60D06P5/02
Inventor 袁钱
Owner ZHEJIANG YINHE PRINTING & DYEING
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