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Dyeing promoter for reactive dye and using method of dyeing promoter

A technology of reactive dyes and dyeing accelerators, applied in dyeing, textiles, and papermaking, can solve the problems of high price, high cost, and high salt consumption, and achieve the effects of cheap price, saving man-hours and energy, and reducing production costs

Inactive Publication Date: 2015-06-24
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 it is expensive
According to domestic reports, compounding salt can reduce the amount of inorganic salt, but the amount of salt is still high, and the cost is relatively high

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] Some woven or knitted cotton fabrics after scouring and bleaching, the concentration of reactive bright yellow 4GLN is 1% (owf, 1% of the fabric weight). In the dyeing solution, add 1g / L of Pingping, 10g / L of sodium chloride, 3.0g / L of tetrasodium edetate, 20g / L of sodium carbonate, and a bath ratio of 1:15. At 30°C, according to the bath ratio, add some dyeing water first, then add Pingpingjia, then add reactive bright yellow 4GLN, then add cloth, then add sodium chloride, add tetrasodium edetate after 5 minutes, and heat up to 60 ℃, keep shaking for 30 minutes, then add sodium carbonate, keep for 30 minutes, cool down, and soap wash. The K / S value after soaping is 2.94. In the comparative test, 10g / L sodium chloride was used alone as the dyeing accelerator without adding tetrasodium edetate, and the K / S value was 2.26.

Embodiment 2

[0027] Some woven or knitted cotton fabrics after scouring and bleaching, the concentration of reactive yellow KE-4R is 1% (owf, 1% of the fabric weight). In the dyeing solution, add 1g / L of Pingping, 30g / L of sodium chloride, 5.0g / L of disodium edetate, 8g / L of sodium phosphate, and a bath ratio of 1:15. At 30°C, add some dyeing water according to the bath ratio, then add Pingpingjia, then add reactive yellow KE-4R, then put it into the cloth, then add sodium chloride, and after 5 minutes, add disodium edetate, 10 Minutes later, raise the temperature to 85°C, keep shaking for 25 minutes, then add sodium phosphate, keep it for 30 minutes, cool down, and soap wash. The K / S value after soaping was 4.04. In the comparative test, 30g / L sodium chloride was used alone as the dyeing accelerator without adding disodium edetate, and the K / S value was 3.13.

Embodiment 3

[0029] A number of woven or knitted cotton fabrics after scouring and bleaching, the concentration of active Cuilan BGFN is 1% (owf, 1% of the fabric weight). In the dyeing solution, add 1g / L of Pingping, 10g / L of sodium sulfate, 2g / L of calcium sodium edetate, 25g / L of sodium carbonate, and a bath ratio of 1:15. At 30°C, add some dyeing water according to the bath ratio, then add Pingpingjia, add calcium sodium edetate after 5 minutes, then add active Cuilan BGFN, then add cloth, then add sodium sulfate, and heat up to 60 ℃, keep shaking for 30 minutes, then add sodium carbonate, keep for 30 minutes, cool down, and soap wash. The K / S value after soaping is 2.02. In the comparative test, the K / S value was 1.53 when 10 g / L sodium sulfate was used alone as the dyeing accelerator without adding calcium sodium edetate.

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Abstract

The invention discloses a dyeing promoter for reactive dye. The dyeing promoter comprises ethylenediaminetetraacetic acid ionic salt, specifically at least one of ethylenediaminetetraacetic acid tetrasodium salt, ethylenediaminetetraacetic acid disodium salt, dipotassium ethylene diamine tetraacetate, tripotassium ethylenediaminetetraacetic acid, ethylenediaminetetraacetic acid dilithium salt, ethylenediaminetetraacetic acid calcium disodium salt, ethylenediaminetetraacetic acid disodium zinc salt tetrahydrate and ethylenediaminetetraacetic acid ammonium salt. The invention further discloses a using method of the dyeing promoter. According to the method, the ethylenediaminetetraacetic acid ionic salt is adopted as the dyeing promoter of inorganic salt, the dye-uptake and fixation rate of reactive dyeing can be remarkably improved, the use amount of dyeing promoter neutral inorganic salt can be reduced, traditional reactive dyeing equipment is not required to be transformed, and dyeing technical parameters of various reactive dyes are not changed, so that the environment-friendly effect is improved, the production cost is reduced, and the environment-friendly low-salt reactive dyeing is realized.

Description

technical field [0001] The invention relates to a dyeing accelerator for reactive dyes and a method for using the same, in particular to a dyeing accelerator for reactive dyes containing ethylenediaminetetraacetic acid ion salts and a method for using the same. 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 riv...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/647D06P1/38
Inventor 石振东杨敬李智明
Owner WUYI UNIV
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