Alkaline color fixing agent for reactive dyes and preparation method of alkaline color fixing agent

A technology of reactive dyes and color-fixing agents, applied in the field of printing and dyeing auxiliaries, can solve problems such as poor color-fixing effect of color-fixing agents, and achieve the effects of improving dry and wet fastness, small impact, and no formaldehyde pollution

Inactive Publication Date: 2020-01-07
艾绳瑞
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide a kind of alkaline color-fixing agent for reactive

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0019] Example 1

[0020] According to the following mass percentages: 20wt% dimethylamine, 10wt% sucrose, 15wt% unsaturated isobutyrate compound, 0.5wt% initiator, 10wt% alkaline regulator, 44.5wt% deionized water; dimethylamine first Add sucrose and unsaturated isobutyrate compounds into a flask equipped with a stirrer, a thermometer and a reflux condenser, add deionized water, heat up to 80°C under nitrogen protection and stir for 45 minutes, then slowly drop the initiator, and then After adding the alkaline regulator, react for 8 hours and cool to room temperature to obtain a fixing agent for dyeing with reactive dyes.

[0021] Among them, the alkali regulator is 1:1 sodium hydroxide and sodium carbonate.

[0022] Among them, the unsaturated isocyanate compound is acryloyloxyethyl isocyanate.

[0023] Among them, the initiator is ammonium persulfate.

Example Embodiment

[0024] Example 2

[0025] According to the following mass percentages: 25wt% dimethylamine, 14wt% sucrose, 10wt% unsaturated isobutyrate compound, 1wt% initiator, 9wt% alkaline regulator, 41wt% deionized water; first, dimethylamine, sucrose , The unsaturated isobutyrate compound is added to a flask equipped with a stirrer, a thermometer and a reflux condenser, deionized water is added, and the temperature is raised to 85°C under the protection of nitrogen and stirred for 40 minutes, then the initiator is slowly dropped in, and then the alkali is added After reacting for 7h with the sex regulator, cooling to room temperature, the fixing agent for reactive dye dyeing is obtained.

[0026] Among them, the alkalinity regulator is potassium hydroxide.

[0027] Among them, the unsaturated isocyanate compound is acryl isocyanate.

[0028] Among them, the initiator is sodium persulfate.

Example Embodiment

[0029] Example 3

[0030] According to the following mass percentages: 30wt% dimethylamine, 16wt% sucrose, 5wt% unsaturated isobutyrate compound, 1.5wt% initiator, 8wt% alkaline regulator, 37.5wt% deionized water; dimethylamine first , Sucrose, and unsaturated isobutyrate compounds were added to a flask equipped with a stirrer, a thermometer and a reflux condenser, added deionized water, heated to 90°C under nitrogen protection and stirred for 35 minutes, then slowly dropped the initiator, and then After adding the alkaline regulator, react for 6 hours and cool to room temperature to obtain the fixing agent for reactive dye dyeing.

[0031] Among them, the mass ratio of alkaline regulator is 2:1 potassium hydroxide and potassium carbonate.

[0032] Among them, the unsaturated isocyanate compound is methacryloyloxyethyl isocyanate.

[0033] Among them, the initiator is potassium persulfate.

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PUM

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Abstract

The invention discloses an alkaline color fixing agent for reactive dyes. The alkaline color fixing agent comprises, in weight percent, 20wt%-40wt% of dimethylamine, 10wt%-20wt% of sucrose, 5wt%-15wt%of unsaturated isobutyrate compounds, 0.05wt%-2wt% of initiating agents, 5wt%-10wt% of alkaline regulators and the balance deionized water, and the sum of the weight percent of raw materials is 100%.The invention further discloses a preparation method of the alkaline color fixing agent for the reactive dyes. The alkaline color fixing agent has the advantages that the prepared color fixing agentcontains groups such as hydroxyl, carboxyl, isocyanate and acylamino, a 'bridge' action between a fiber and a dye is achieved, the color fixing agent can be linked with reactive groups of dye molecules and hydroxyls on cellulose molecules, the prepared color fixing agent is free from formaldehyde pollution, and the formaldehyde content of a fabric is effectively reduced.

Description

technical field [0001] The invention belongs to the technical field of printing and dyeing auxiliaries, in particular to an alkaline color-fixing agent for reactive dyes, and also relates to a preparation method of the alkaline color-fixing agent for reactive dyes. Background technique [0002] Fixing agent is one of the important auxiliary agents in the printing and dyeing industry. It is an auxiliary agent used to improve the color fastness of dyes on fabrics to wet treatment. It can help fabrics and dyes to form insoluble colored substances to improve the color fastness to washing and perspiration, and sometimes to improve the light fastness. [0003] In recent years, with the development of science and technology, dyeing and finishing technology has also been significantly improved. Due to the expansion of international textile trade and the improvement of people's living standards and environmental protection awareness, textiles are required to be comfortable, clean and...

Claims

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Application Information

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IPC IPC(8): D06P5/08D06P1/38
CPCD06P1/38D06P5/08
Inventor 艾绳瑞
Owner 艾绳瑞
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