Aid for dyeing cotton textiles, preparation method and dyeing method thereof

A technology for cotton textiles and auxiliaries, which is applied in the field of cotton textile dyeing and cotton textile dyeing auxiliaries, can solve the problems of colored wastewater polluting the environment, low dyeing percentage, etc. Effect

Inactive Publication Date: 2010-06-16
XI'AN POLYTECHNIC UNIVERSITY
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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 an auxiliary agent for dyeing cotton textiles, which solves the problem that the dyeing percentage of existing cotton reactive dyes is low and the colored waste water produced pollutes the environment

Method used

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  • Aid for dyeing cotton textiles, preparation method and dyeing method thereof
  • Aid for dyeing cotton textiles, preparation method and dyeing method thereof
  • Aid for dyeing cotton textiles, preparation method and dyeing method thereof

Examples

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preparation example Construction

[0034] The present invention is used for the preparation method of the auxiliary agent of cotton textile dyeing, specifically implements according to the following steps:

[0035] Step 1: According to mass percentage, weigh 7.0%-8.0% of 3-chloro-2-hydroxypropyltrimethylammonium chloride, 1.0%-2.0% of sodium hydroxide, 1.0%-4.0% of polyamine, 3.0%-4.0% cyanuric chloride, 0%-2.0% aniline, 0.5%-1.0% sodium carbonate, 11%-12% deionized water a (room temperature), 4.0%-5.0% deionized Water b (room temperature), 65.5%-67.5% deionized water c (1°C-2°C), the total amount of the above-mentioned components is 100%, and the polyamines are selected from ethylenediamine, diethylenetriamine, tetra One of ethylene pentamine, polyethylene polyamine, etc. Sodium carbonate was dissolved in deionized water b to obtain an aqueous sodium carbonate solution.

[0036] Step 2: Under stirring conditions, add the deionized water a weighed in step 1 to the reaction kettle, and add the 3-chloro-2-hydro...

Embodiment 1

[0053] Step 1: Dissolve 18.8 kg of 3-chloro-2-hydroxypropyltrimethylammonium chloride and 4 kg of sodium hydroxide in 30 kg of deionized water, stir at 30°C for 30 minutes, and then add 3.05 kg of ethylene glycol amine, the temperature of the system was raised to 90°C under stirring conditions, and the temperature was kept for 4 hours; 9.2 kg of cyanuric chloride was added to the above system, and after dissolving, 177.75 kg of ice water with a temperature of 1°C-2°C was added to make the system temperature Keep it below 5°C, and as the process proceeds, slowly add 7 kg of sodium carbonate aqueous solution (made by dissolving 2.25 kg of sodium carbonate in 12.75 kg of deionized water) to adjust the pH value of the system to about 5.0; the pH value of the system is basically constant When it does not change, add 4.7 kg of aniline to keep the temperature of the system at about 40°C. As the reaction progresses, slowly add 8 kg of the above-mentioned sodium carbonate aqueous soluti...

Embodiment 2

[0070]Step 1: Dissolve 18.8 kg of 3-chloro-2-hydroxypropyltrimethylammonium chloride and 4 kg of sodium hydroxide in 30 kg of deionized water, stir at 30°C for 30 minutes, and then add 3.05 kg of ethylene glycol amine, the temperature of the system was raised to 90°C under stirring conditions, and the temperature was kept for 4 hours; 9.2 kg of cyanuric chloride was added to the above system, and after dissolving, 177.75 kg of ice water with a temperature of 1°C-2°C was added to make the system temperature Keep it below 5°C, and as the process proceeds, slowly add 7 kg of sodium carbonate aqueous solution (made by dissolving 2.25 kg of sodium carbonate in 12.75 kg of deionized water) to adjust the pH value of the system to about 5.0; the pH value of the system is basically constant When it does not change, add 4.7 kg of aniline to keep the temperature of the system at about 40°C. As the reaction progresses, slowly add 8 kg of the above-mentioned sodium carbonate aqueous solutio...

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Abstract

The invention discloses an aid for dyeing cotton textiles shown in a structural formula (I), and also discloses a method for preparing the aid. The method comprises the following steps: weighing 7.0 to 8.0 percent of 3-chloro-2-hydroxypropyl trimethylammonium chloride, 1.0 to 2.0 percent of sodium hydroxide, 1.0 to 4.0 percent of polyamine, 3.0 to 4.0 percent of cyanuric chloride, 0 to 2.0 percent of aniline, 0.5 to 1.0 percent of sodium carbonate, 11 to 12 percent of normal temperature deionized water a, 4.0 to 5.0 percent of normal temperature deionized water b, and 65.5 to 67.5 percent of deionized water c at 1 to 2 DEG C; dissolving the sodium carbonate in the deionized water b to prepare aqueous solution of sodium carbonate; adding the deionized water a, the 3-chloro-2-hydroxypropyl trimethylammonium chloride and the sodium hydroxide to a reaction kettle, and stirring the mixture; adding the polyamine to the reaction kettle, and heating the kettle to 85 to 90 DEG C to perform reaction for 3 to 5 hours; adding the deionized water c and the cyanuric chloride to perform reaction for 2 to 4 hours, dripping the aqueous solution of sodium carbonate to enable the pH value to be between 4 and 6 so as to prepare the aid. The aid can be used for performing pad dyeing and dip dyeing on the cotton textiles. The aid, the preparation method and the dyeing method improve the dyeing percentage and fixation percentage of active pigment for cotton, and reduce the discharge value of waste pigment.

Description

technical field [0001] The invention belongs to the technical field of textile materials, and in particular relates to an auxiliary agent for dyeing cotton textiles. The invention also relates to a preparation method of the auxiliary agent and a method for dyeing cotton textiles by using the auxiliary agent. Background technique [0002] Reactive dyes for cotton are the most important dyes for cotton fiber textile dyeing. Reactive dyes for cotton have the characteristics of broad color spectrum, bright color, excellent performance and strong applicability, and have been widely used in the dyeing industry. The annual output of reactive dyes for cotton in the world is about 250,000 tons, accounting for about 20% of the total output of dyes. At present, the annual output of reactive dyes for cotton in my country is about 190,000 tons, accounting for 25% of the world's total dyestuff output. [0003] Reactive dyes for cotton are dyes that can be combined with dyed fibers throu...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/66D06M13/467C07C215/40C07C213/02D06P3/66D06P1/673D06M101/06
Inventor 邢建伟徐成书任燕
Owner XI'AN POLYTECHNIC UNIVERSITY
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