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Novel discharging agent for textile printing and dyeing

A textile printing and dyeing and dye discharge agent technology, applied in the field of new dye discharge agents, can solve the problems affecting the effectiveness of the reduction of transparent printing parts, low solubility, etc., to improve the discharge effect, overcome low solubility, modify The effect of simple method

Inactive Publication Date: 2015-07-29
HUZHOU LIHUA YUJIE UNION TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the solubility of thiourea dioxide in water is low, and the amount of water used in the preparation of discharge pulp during discharge printing is very small, which makes thiourea dioxide cannot be fully dissolved in the discharge pulp, which greatly affects its permeability and printing effect. Effectiveness of site restoration

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0016] A new type of dye discharge agent for textile printing and dyeing, which is prepared by mixing and stirring the following components by weight: 3 parts of fatty alcohol polyoxyethylene ether, 3 parts of epichlorohydrin, 3 parts of boric acid, polyethylene glycol 5 parts of alcohol oleyl ether, 3 parts of polyvinylpyrrolidone, 2 parts of N-phenyl-2-naphthylamine, 3 parts of sodium hydroxide, 11 parts of thiourea dioxide, 3 parts of carved white powder, 7 parts of linear alkylbenzenesulfonic acid , 3 parts of ammonium sulfate, 17 parts of ethylene glycol, and 20 parts of deionized water.

[0017] The preparation method is as follows: mix and heat the formulated amount of carved white powder, polyethylene glycol oleyl ether, thiourea dioxide and ethylene glycol to 70-750°C for 1-2 hours, then add the remaining components in the formulated amount, and cool down to 40 Stir and react at -50°C for 30-40 minutes to obtain the product.

Embodiment 2

[0019] A new type of dye discharge agent for textile printing and dyeing, which is prepared by mixing and stirring the following components by weight: 8 parts of fatty alcohol polyoxyethylene ether, 6 parts of epichlorohydrin, 7 parts of boric acid, polyethylene glycol 10 parts of alcohol oleyl ether, 7 parts of polyvinylpyrrolidone, 3 parts of N-phenyl-2-naphthylamine, 7 parts of sodium hydroxide, 12 parts of thiourea dioxide, 6 parts of carved white powder, 12 parts of linear alkylbenzenesulfonic acid , 5 parts of ammonium sulfate, 22 parts of ethylene glycol, and 30 parts of deionized water.

[0020] The preparation method is as follows: mix and heat the formulated amount of carved white powder, polyethylene glycol oleyl ether, thiourea dioxide and ethylene glycol to 70-750°C for 1-2 hours, then add the remaining components in the formulated amount, and cool down to 40 Stir and react at -50°C for 30-40 minutes to obtain the product.

Embodiment 3

[0022] A new type of dye discharge agent for textile printing and dyeing, which is prepared by mixing and stirring the following components by weight: 4 parts of fatty alcohol polyoxyethylene ether, 4 parts of epichlorohydrin, 4 parts of boric acid, polyethylene glycol 6 parts of alcohol oleyl ether, 4 parts of polyvinylpyrrolidone, 2 parts of N-phenyl-2-naphthylamine, 4 parts of sodium hydroxide, 11 parts of thiourea dioxide, 4 parts of carved white powder, 8 parts of linear alkylbenzenesulfonic acid , 4 parts of ammonium sulfate, 18 parts of ethylene glycol, and 22 parts of deionized water.

[0023] The preparation method is as follows: mix and heat the formulated amount of carved white powder, polyethylene glycol oleyl ether, thiourea dioxide and ethylene glycol to 70-750°C for 1-2 hours, then add the remaining components in the formulated amount, and cool down to 40 Stir and react at -50°C for 30-40 minutes to obtain the product.

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Abstract

The invention discloses a novel discharging agent for textile printing and dyeing. The novel discharging agent is prepared by the following components in parts by weight: 3 to 8 parts of fatty alcohol-polyoxyethylene ether, 3 to 6 parts of epichlorohydrin, 3 to 7 parts of boric acid, 5 to 10 parts of polyethylene glycol oil-based ether, 3 to 7 parts of polyvinylpyrrolidone, 2 to 3 parts of N-benyl-2-naphthylamine, 3 to 7 parts of sodium hydroxide, 11 to 12 parts of thiourea dioxide, 3 to 6 parts of rongalite, 7 to 12 parts of linear alkyl benzene sulphonic acid, 3 to 5 parts of ammonium sulfate, 17 to 22 parts of ethylene glycol, and 20 to 30 parts of deionized water. The novel discharging agent has the advantages that a modifying method is simple, the stability of a product is good, and the discharging effect of the thiourea dioxide can be improved; the defects of low solubility because of using the convention thiourea dioxide as the discharging agent for discharging and dyeing and the poorer dispersing uniformity, poorer net permeating property, insufficient playing of discharging function and the like in the discharging liquid are overcome.

Description

technical field [0001] The invention relates to a fabric finishing agent, in particular to a novel dye discharge agent for textile printing and dyeing. technical background [0002] At present, when printing and dyeing enterprises carry out discharge printing on fabrics, they need to add a certain amount of discharge agent to the printing paste. Most of the discharge agents used are reducing agents. The discharge agent is the key to the implementation of the discharge printing process. The role of chemical agents is usually to chemically react (usually a reduction reaction) with the ground color dye in the printed part during the steaming (treatment under certain humid and hot conditions) after printing, so as to destroy the color development system of the ground color dye fade away. Most of the existing dye discharge agent commodities have the disadvantages of poor stability and short storage period, which is mainly due to the fact that the discharge agent absorbs and cont...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/15
Inventor 厉秀华
Owner HUZHOU LIHUA YUJIE UNION TEXTILE
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