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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 dyes, which solves the problem of poor color-fixing effect of the color-fixing agent existing in the prior art

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 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; , sucrose, and unsaturated isobutyrate compounds were added to a flask equipped with a stirrer, a thermometer, and a reflux condenser, and deionized water was added, and the temperature was raised to 80°C under nitrogen protection and stirred for 45 minutes, then slowly dripped into the initiator, and then After adding the basic conditioner, react for 8 hours and cool to room temperature to obtain the color-fixing agent for dyeing with reactive dyes.

[0021] Among them, the alkaline conditioner is sodium hydroxide and sodium carbonate at a ratio of 1:1.

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

[0023] Wherein, the initiator is ammonium persulfate.

Embodiment 2

[0025] According to the following mass percentages: 25wt% dimethylamine, 14wt% sucrose, 10wt% unsaturated isobutyrate compound, 1wt% initiator, 9wt% alkaline regulator, 41wt% deionized water; Add the unsaturated isobutyrate compound into a flask equipped with a stirrer, a thermometer and a reflux condenser, add deionized water, raise the temperature to 85°C under nitrogen protection and stir for 40min, then slowly drop the initiator, and then add the alkali After reacting with the sex regulator for 7 hours, cool down to room temperature to obtain a color-fixing agent for dyeing with reactive dyes.

[0026] Wherein, the alkaline conditioner is potassium hydroxide.

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

[0028] Wherein, initiator is sodium persulfate.

Embodiment 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; , sucrose, and unsaturated isobutyrate compounds were added to a flask equipped with a stirrer, a thermometer, and a reflux condenser, and deionized water was added, and the temperature was raised to 90°C under nitrogen protection and stirred for 35 minutes, and then slowly dropped into the initiator, and then After adding the basic conditioner, react for 6 hours, cool to room temperature, and obtain the color-fixing agent for dyeing with reactive dyes.

[0031] Wherein, the alkaline conditioner mass ratio is potassium hydroxide and potassium carbonate of 2:1.

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

[0033] Wherein, 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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