Method for dyeing cotton fiber fabric by multiple auxiliaries

A technology for fabric dyeing and cotton fiber, applied in the field of cotton fiber fabric dyeing, can solve the problems of dye dispersion performance decline, secondary coagulation, affecting quality, etc., to increase the dyeing rate and color fixation rate, low cost, and avoid color flowers. Effect

Inactive Publication Date: 2015-01-07
TAICANG SULUN TEXTILE CHEM FIBER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The solvent of disperse dyes is usually water. In actual production, the dispersibility of the dyes decreases, and the dyes will re-agglomerate during the dissolution process, or due to the poor compatibility of the dyes, color spots, stains, stripes, etc. are formed on the dyed goods. defects, affect the quality

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Dye solution configuration: put dye, cationic T, dispersant CNF and acid-base buffer in a mixture of ethanol and water, the liquor ratio of the dye solution is 1:25, and the volume ratio of ethanol and water is 75%: 25% , the concentration of cationic T is 0.5g / L, the concentration of dispersant CNF is 0.5g / L, the concentration of non-ionic fatty amine polyoxyethylene ether is 0.05g / L, and the concentration of acid-base buffer is 1g / L , stirred evenly to make a dye solution.

[0023] Dyeing: Put the dye liquor and cotton fabric in the dyeing machine, start dyeing at 40°C, raise the temperature to 130°C at 1.5°C / min, and keep it warm for 20 minutes.

[0024] Washing liquid configuration: put soap flakes and sodium carbonate in a mixture of ethanol organic solvent and water, the bath ratio of washing liquid is 1:20, the volume ratio of alcohol organic solvent and water is 75%: 25%, soap flakes The concentration of sodium carbonate is 1g / L, and the concentration of sodium...

Embodiment 2

[0028] Dye solution configuration: put the dye, cationic T, dispersant CNF and acid-base buffer in the mixture of ethanol and water, the bath ratio of the dye solution is 1:45, and the volume ratio of ethanol and water is 50%:50% , the concentration of cationic T is 0.1g / L, the concentration of dispersant CNF is 2g / L, the concentration of non-ionic fatty amine polyoxyethylene ether is 0.25g / L, the concentration of acid-base buffer is 5g / L, Stir evenly to make a dye solution.

[0029] Dyeing: Put the dye liquor and cotton fabric in the dyeing machine, start dyeing at 40°C, raise the temperature to 140°C at 1.5°C / min, and keep it warm for 30 minutes.

[0030] Washing liquid configuration: put soap flakes and sodium carbonate in a mixture of ethanol organic solvent and water, the bath ratio of washing liquid is 1:55, the volume ratio of alcohol organic solvent and water is 50%:50%, soap flakes The concentration of sodium carbonate is 5g / L, and the concentration of sodium carbona...

Embodiment 3

[0034] Dye solution configuration: put the dye, cationic T, dispersant CNF and acid-base buffer in the mixture of isopropanol and water, the liquor ratio of the dye solution is 1:35, and the volume ratio of isopropanol and water is 60%: 40%, the concentration of cationic T is 0.3g / L, the concentration of dispersant CNF is 1g / L, the concentration of non-ionic fatty amine polyoxyethylene ether is 0.35g / L, and the concentration of acid-base buffer is 2.5g / L, stir evenly to make a dye solution.

[0035] Dyeing: Put the dye liquor and cotton fabric in the dyeing machine, start dyeing at 40°C, raise the temperature to 130°C at 1.5°C / min, and keep it warm for 30 minutes.

[0036] Washing liquid configuration: put soap flakes and sodium carbonate in a mixture of isopropanol organic solvent and water, the bath ratio of washing liquid is 1:35, the volume ratio of isopropanol and water is 70%:30%, soap flakes The concentration of sodium carbonate is 2.5g / L, and the concentration of sod...

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Abstract

A method for dyeing cotton fiber fabric by multiple auxiliaries comprises steps as follows: dye, positive ions T, a dispersant CNF, nonionic alicyclic amine polyoxyethylene ether and an acid-base buffering agent are placed into a mixed liquid of an alcohol organic solvent and water and uniformly stirred to prepare a dye liquid; the dye liquid and the cotton fiber fabric are placed in a dyeing machine, the fabric is dyed at the temperature of 40 DEG C, heated at the speed of 1.5 DEG C per minute and subjected to thermal insulation dyeing; flaked soap and sodium carbonate are placed into the mixed liquid of the alcohol organic solvent and the water and stirred uniformly to prepare a washing solution; the dyed cotton fiber fabric is placed into the washing solution for washing; the cotton fiber fabric is dried and subjected to aftertreatment, stentering, preshrinking, cloth inspection and rolling. According to the method disclosed by the invention, three types of auxiliaries are matched for use, the staining property is not influenced while the dye-uptake rate and the fixation rate of dye to cotton fiber are remarkably increased; and the dyeing process is simple, environment protection is realized, the cost is lower, and the method is suitable for large-scale production.

Description

technical field [0001] The invention relates to a method for dyeing cotton fabrics, in particular to a method for dyeing cotton fabrics with various auxiliary agents. Background technique [0002] At present, with the improvement of people's living standards and the continuous renewal of consumption concepts, consumers have higher and higher requirements for cotton textiles, especially the quality, variety and color of fabrics. Weak acid dyes are the main dyes for cotton fiber dyeing. When cotton / cotton or cotton / cotton blends are dyed by two-bath method or one-bath method, weak acid dyes will contaminate cotton fibers, resulting in cotton / cotton or cotton / cotton blends The color fastness decreases, and even affects the vividness of the color. [0003] Simultaneously, conventional cotton fiber dyeing method is to carry out wet heat dyeing in the dyeing equipment higher than 100 ℃. The solvent of disperse dyes is usually water. In actual production, the dispersibility of th...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/92D06P1/66D06P1/62D06P1/607D06P3/60D06P5/08
Inventor 袁振其
Owner TAICANG SULUN TEXTILE CHEM FIBER
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