Activated dye low-alkaline dyeing method for black regenerated cellulose fiber cheese

A technology of regenerated cellulose and reactive dyes, applied in the field of printing and dyeing, which can solve the problems that regenerated cellulose fibers cannot reduce the dyeing temperature and the amount of dyeing soda ash, so as to improve equipment efficiency, reduce dyeing temperature, and improve color fastness to washing Effect

Active Publication Date: 2015-03-11
浙江恒生印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] The purpose of the present invention is to solve the above-mentioned problems caused by the inability to reduce the dyeing temperature and the amount of dyeing soda ash used in the current dyeing of regenerated cellulose fibers, and to provide a black regenerated cellulose fiber package with low reactive dyes. Alkali staining method

Method used

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  • Activated dye low-alkaline dyeing method for black regenerated cellulose fiber cheese
  • Activated dye low-alkaline dyeing method for black regenerated cellulose fiber cheese

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] A kind of reactive dye low-alkali dyeing method of black regenerated cellulose fiber cheese, specifically comprises the following steps:

[0027] (1) Pretreatment: add refining agent and soda ash to water, stir until they are completely dissolved, put them into the main vat with regenerated cellulose fiber cheese, add the water in the main vat to the predetermined water level, cover it, and heat up to 78°C, under continuous circulation for 25 minutes (forward 4 reverse 3 cycles), then drain the water and wait for dyeing; the concentration of refining agent in the main vat is 0.5g / L, and the concentration of soda ash is 2g / L;

[0028] The refining agent is a mixed aqueous solution of fatty alcohol ethoxylate and butyl diglycol, the mass concentration of fatty alcohol ethoxylate is 25 wt%, and the mass concentration of butyl diglycol is 20 wt%.

[0029] (2) Dyeing: Add 6 times the weight of regenerated cellulose fiber package yarn and 80g / L aqueous solution of sodium anhy...

Embodiment 2

[0037] A kind of reactive dye low-alkali dyeing method of black regenerated cellulose fiber cheese, specifically comprises the following steps:

[0038] (1) Pretreatment: add refining agent and soda ash to water, stir until they are completely dissolved, put them into the main vat with regenerated cellulose fiber cheese, add the water in the main vat to the predetermined water level, cover it, and heat up to 82°C, under continuous circulation for 20 minutes (forward 4 reverse 3 cycles), then drain the water and wait for dyeing; the concentration of refining agent in the main vat is 2g / L, and the concentration of soda ash is 1g / L;

[0039] The refining agent is a mixed aqueous solution of fatty alcohol ethoxylate and butyl diglycol, the mass concentration of fatty alcohol ethoxylate is 25 wt%, and the mass concentration of butyl diglycol is 20 wt%.

[0040] (2) Dyeing: Add 8 times the weight of regenerated cellulose fiber package yarn and an aqueous solution of 50 g / L sodium an...

Embodiment 3

[0048] A kind of reactive dye low-alkali dyeing method of black regenerated cellulose fiber cheese, specifically comprises the following steps:

[0049] (1) Pretreatment: add refining agent and soda ash to water, stir until they are completely dissolved, put them into the main vat with regenerated cellulose fiber cheese, add the water in the main vat to the predetermined water level, cover it, and heat up to 80°C, under continuous circulation for 21 minutes (forward 4 reverse 3 cycles), then drain the water and wait for dyeing; the concentration of refining agent in the main vat is 1g / L, and the concentration of soda ash is 1g / L;

[0050] The refining agent is a mixed aqueous solution of fatty alcohol ethoxylate and butyl diglycol, the mass concentration of fatty alcohol ethoxylate is 25 wt%, and the mass concentration of butyl diglycol is 20 wt%.

[0051] (2) Dyeing: Add 7 times the weight of regenerated cellulose fiber package yarn and 60g / L aqueous solution of sodium sulfat...

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Abstract

The invention relates to the field of printing and dyeing, particularly to an activated dye low-alkaline dyeing method for a black regenerated cellulose fiber cheese. The method comprises the steps of pretreatment, dyeing, fixing and follow-up treatment; in addition, low alkaline is adopted in the dyeing and fixing processes and the working procedures are reduced. Therefore, the dyeing temperature of the regenerated cellulose fiber is reduced; the alkaline dosage for dyeing the regenerated cellulose fiber is lowered; the method is simple to operate, short in technical duration, and low in alkaline content in the dyeing waste water, can reduce the dosage of glacial acetic acid for neutralization in the follow-up procedure, lowers washing water volume, saves energy and reduces emission, improves the color fastness of the cheese, and lowers the dyeing cost.

Description

technical field [0001] The invention relates to the field of printing and dyeing, in particular to a method for low-alkali dyeing of black regenerated cellulose fiber cheese with reactive dyes. Background technique [0002] In the 21st century, my country's textile industry has entered a period of rapid development, and the output of regenerated cellulose fiber has reached 70% of the world's output. Due to the reduction of cultivated land and the depletion of oil resources, the output of natural fibers and synthetic fibers will be increasingly affected. More and more constraints; people re-understand and explore the value of regenerated cellulose fiber while paying attention to the environmental protection performance in the process of textile consumption. Regenerated cellulose fiber has excellent properties such as good hygroscopicity, strong air permeability, good dyeing performance, comfortable wearing, easy textile processing, and biodegradability. Now the application of ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P3/66D06P1/38D06P1/673D06P1/44D06P5/10
Inventor 班辉许校康陈海峰符静陆峰英金伟龙范森林
Owner 浙江恒生印染有限公司
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