Method for improving pad dyeing fixation rate of textile

A technology for textiles and color fixing rate, applied in the field of textile printing and dyeing, can solve the problems of expensive ionic liquid, shorten the dyeing time, and narrow the application range, and achieve the effects of improving the utilization rate, reducing the dosage of auxiliaries, and low cost

Inactive Publication Date: 2013-08-21
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method applies the principle of microwave heating with good penetrability to the wool pad dyeing technology, it does shorten the dyeing time, achieve rapid level dyeing and improve the color fixation rate, but its disadvantage is that this technology At present, it is only suitable for wool pad dyeing technology, the application range is narrow, and microwave has certain hazards
Although it uses ionic liquid as a solvent to dissolve disperse dyes, and then pad dyes polyester, it does play a role in simple dyeing method and improving color fixation rate, but its disadvantage is that the ionic liquid used in this method is relatively expensive

Method used

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  • Method for improving pad dyeing fixation rate of textile

Examples

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Comparison scheme
Effect test

Embodiment 1

[0034] According to the above process steps: select 1g of cotton textiles as the textiles to be dyed. Place reactive dyes in a mixture of ethanol and water, stir evenly, and prepare a dye solution, wherein the bath ratio of the dye solution is 1:20, the volume ratio of ethanol and water is 95%:5%, and the concentration of reactive dyes 1% of the mass of cotton textiles. The cotton textiles are dipped twice in the second pad dyeing solution, and the cotton textiles have a liquid-carrying rate of 70%, and then the cotton textiles soaked in the pad dyeing solution are dried at a drying temperature of 80° C. and a drying time of 5 minutes. Sodium carbonate is placed in the mixed solution of ethanol and water, and after stirring evenly, it is prepared into a color-fixing solution, wherein the bath ratio of the color-fixing solution is 1:20, the volume ratio of ethanol and water is 95%:5%, and sodium carbonate The concentration is 5g / L. The cotton textiles that have been dipped in...

Embodiment 2

[0036] According to the above process steps: select 1g of cotton textiles as the textiles to be dyed. Put the reactive dye in the mixed solution of isopropanol and water, stir it evenly to prepare the dye solution, wherein the bath ratio of the dye solution is 1:50, the volume ratio of isopropanol and water is 50%:50%, the reactive dye The concentration is 5% of the mass of cotton textiles. The cotton textiles are dipped and padded with the dyeing solution one by one, and the liquid-carrying rate of the hemp textiles is 60%, and then the cotton textiles with the padding solution are dried at a drying temperature of 80°C and a drying time of 3 minutes. Sodium bicarbonate is placed in the mixed solution of isopropanol and water, and the color fixing solution is prepared after stirring evenly, wherein the bath ratio of the color fixing solution is 1:20, and the volume ratio of isopropanol and water is 50%:50% , the concentration of sodium bicarbonate is 10g / L. The cotton textil...

Embodiment 3

[0038]According to the above process steps: select 1g of hemp textiles as the textiles to be dyed. Place reactive dyes in a mixture of ethanol and water, stir evenly, and prepare a dye solution, wherein the bath ratio of the dye solution is 1:20, the volume ratio of ethanol and water is 95%:5%, and the concentration of reactive dyes It is 1% of the quality of hemp textiles. The hemp textiles are soaked in the second pad dyeing solution, and the liquid carrying rate of the hemp textiles is 70%, and then the hemp textiles dipped in the pad dyeing solution are dried at a drying temperature of 80 ° C and a drying time of 5 minutes. Sodium carbonate is placed in the mixed solution of ethanol and water, and after stirring evenly, it is prepared into a color-fixing solution, wherein the bath ratio of the color-fixing solution is 1:20, the volume ratio of ethanol and water is 95%:5%, and sodium carbonate The concentration is 5g / L. Dipping and second-rolling the color-fixing solution...

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Abstract

The invention relates to a method for improving the pad dyeing fixation rate of a textile, and belongs to the field of textile printing and dyeing processing. According to the method provided by the invention, the proportioning of a dye solution and a fixation solution in a textile pad dyeing process is changed, the textile is pad-dyed and dye-fixed respectively using the dye solution or the fixation solution, which is prepared by mixing an alcohol organic solvent in high proportion, a little water, and a dye or a fixing agent, so that the pad dyeing fixation rate of the textile is improved. By adopting the method for improving the pad dyeing fixation rate of the textile provided by the invention, in the pad dyeing process of the textile, not only can the hydrolysis rate of the dye in the dye solution be reduced to improve the utilization rate, the dye-uptake rate, and the even dyeing rate of the dye and the fixation rate of the textile, but also the problem of high water consumption in the textile pad dyeing process can be greatly reduced, as well as the dosage of an auxiliary can be effectively reduced. The method provided by the invention is simple in process, and low in cost, and the alcohol organic solvent can be recycled, is safe, energy-saving, economic and environment-friendly.

Description

technical field [0001] The invention relates to a method for improving the color fixation rate of textile pad dyeing, which belongs to the field of textile printing and dyeing processing. Background technique [0002] The dyes used in the conventional pad dyeing technology generally have many advantages such as bright colors, complete chromatograms, pure shades, excellent fastness, low price, and convenient use. However, the biggest problem with these dyes in application is that the dye utilization rate is not high. , the color fixing rate is only 60~70%, and a large amount of additives are consumed in the pad dyeing process, which causes great pollution to the environment. Therefore, how to improve the pad dyeing fixation rate of dyes has become a hot spot of research at home and abroad. [0003] Public impurity "Printing and Dyeing", date of publication January 1991, volume 17, first issue titled "New Pad Dyeing Technology for Improving the Fixation Rate of Reactive Turqu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/90D06P1/38D06P1/39D06P1/16D06P5/10D06P5/08
Inventor 徐卫林夏良君程珊王运利
Owner WUHAN TEXTILE UNIV
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