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Composite accelerating agent of reactive dyes

A technology of reactive dyes and dyeing accelerators, applied in dyeing, textiles and papermaking, etc., can solve the problems of high prices, achieve the effects of reducing production costs, improving dyeing rate and color fixation rate, and environmental protection and high-efficiency reactive dyeing

Inactive Publication Date: 2015-08-05
WUYI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Foreign reports use sodium citrate as a dyeing accelerator for dyeing, which has a better dyeing effect, is biodegradable, and is environmentally friendly, but its price is more expensive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0025] Some knitted cotton fabrics after scouring and bleaching, the concentration of reactive red BES is 1% (owf, 1% of the fabric weight). In the dye solution, add 1g / L flatly, compound dye accelerator (0.04g / L ammonium chloride, 18g / L sodium oxalate, 11g / L tetrasodium edetate), 18g / L sodium carbonate, liquor ratio 1:15. At 30°C, add some dyeing water according to the bath ratio, then add Pingpingjia, then add reactive red BES, then put it into the cloth, then add composite dyeing accelerator, heat up to 60°C, keep shaking for 30 minutes, then add sodium carbonate , Keep for 30 minutes, cool down, and soap. The K / S value after soaping is 5.38. In the comparison test, 40g / L sodium chloride was used as the dyeing accelerator, and the K / S value was 5.23.

[0026] Example 4

[0027] Some knitted cotton fabrics after scouring and bleaching, the concentration of reactive red BES is 1% (owf, 1% of the fabric weight). In the dyeing solution, add 1g / L flatly, compound dye accel...

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Abstract

The invention discloses a composite accelerating agent of reactive dyes. The composite accelerating agent of the reactive dyes is three combinations including the combination of carboxylate without amino and carboxylate containing amino, a combination of ammonium salt, the carboxylate without amino and the carboxylate containing amino, and a combination of sulfamate, the carboxylate without amino and the carboxylate containing amino, wherein the carboxylate without amino is sodium acetate, sodium oxalate, sodium citrate, sodium tartrate, sodium polycarboxylic acid, potassium acetate, potassium citrate or potassium tartrate; the carboxylate containing amino is the ionic salt of ethylene diamine tetraacetic acid; the ammonium salt is ammonium chloride, ammonium sulfate, ammonium carbonate, ammonium phosphate, ammonium formate or ammonium acetate. The composite accelerating agent of the reactive dyes has the advantages of being degradable, small in amount, efficient, environmentally friendly and low in price and can obviously improve the dye uptake and the fixation rate of the reactive dyes, thereby having a great application prospect and high promotional values.

Description

technical field [0001] The invention relates to a composite dyeing accelerator for reactive dyes, in particular to a composite dyeing accelerator containing amino-free carboxylate and amino-containing carboxylate. Background technique [0002] Reactive dyes have simple molecular structure, bright color, complete chromatogram, convenient use, low cost, excellent fastness and high safety, and have been widely used. However, in the traditional dyeing process, in order to improve the dye fixation rate and fixation rate, it is necessary to add a large amount of inorganic salts to promote dyeing. According to the structure of the dye and the properties of the dyed fabric, the amount of salt used ranges from about 30 to 150g / L . The addition of a large amount of inorganic salts causes serious environmental pollution to the printing and dyeing wastewater. The discharge of high-salt wastewater directly changes the water quality of rivers and lakes and destroys the ecological enviro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/653D06P1/655D06P1/66D06P1/38
Inventor 石振东苏湘权陆毅知张汉山
Owner WUYI UNIV
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