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Multi-active base particle dyeing process

A process and modified technology, applied in the field of cotton fabric dyeing, can solve the problems of low effective utilization rate, poor stability, large dosage, etc.

Active Publication Date: 2021-05-04
天和科技(香港)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Existing modifiers, especially small molecule modifiers, have the advantages of better level dyeing and penetration, but poor stability, so there are problems such as large dosage and low effective utilization rate. Acid or alkali needs to be added in the sex and dyeing process, and a large number of washing steps are required, which brings certain environmental pollution problems

Method used

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  • Multi-active base particle dyeing process
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  • Multi-active base particle dyeing process

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] 1. Preparation of cationic modifier 1 containing the following formula

[0049]

[0050] (1) Add 1,4 dichloronaphthalene in the reaction vessel, pass into ammonia gas at a molar ratio of ammonia: 1,4 dichloronaphthalene about 3:2, react at 200°C under the action of Fe catalyst for about 4 Hours, an oily crude product was obtained, and 85% ethanol solution was slowly added to the crude product for recrystallization and purification; the product was dissolved in anhydrous ether;

[0051] (2) Add methyl iodide CH to the ether solution of the purified product obtained in (1) at a molar ratio of about 1:10 3 1, react at room temperature for about 5 hours to obtain an oily crude product; slowly add 70% ethanol solution to the product for recrystallization and purification; dissolve the product in anhydrous ether;

[0052] (3) Add the ether solution of the purified product obtained in (2) into a synthesis kettle equipped with a reflux condenser, start the agitator, add 10 ...

Embodiment 2

[0062] 1. Preparation of cationic modifier 2 containing the following formula

[0063]

[0064] (1) Add 1,4 dichloronaphthalene in the reaction vessel, pass into ammonia gas at a molar ratio of ammonia: 1,4 dichloronaphthalene about 3:2, react at 200°C under the action of Fe catalyst for about 4 Hours, an oily crude product was obtained, and 85% ethanol solution was slowly added to the crude product for recrystallization and purification; the product was dissolved in anhydrous ether;

[0065] (2) Add iodoethane ICH to the ether solution of the purified product obtained in (1) at a molar ratio of about 1:10 2 CH 3 , react at room temperature for about 5 hours to obtain an oily crude product; slowly add 70% ethanol solution to the product for recrystallization and purification; dissolve the product in anhydrous ether;

[0066] (3) Add the ether solution of the purified product obtained in (2) into a synthesis kettle equipped with a reflux condenser, start the agitator, add ...

Embodiment 3

[0076] 1. Preparation of cationic modifier 3 containing the following formula

[0077]

[0078] (1) Add 1,4 dichloronaphthalene in the reaction vessel, pass into ammonia gas at a molar ratio of ammonia: 1,4 dichloronaphthalene about 3:2, react at 200°C under the action of Fe catalyst for about 4 Hours, an oily crude product was obtained, and 85% ethanol solution was slowly added to the crude product for recrystallization and purification; the product was dissolved in anhydrous ether;

[0079] (2) Add iodoisopropane ICH (CH 3 ) 2 , react at room temperature for about 12 hours to obtain an oily crude product; slowly add 70% ethanol solution to the product for recrystallization and purification; dissolve the product in anhydrous ether;

[0080] (3) Add the ether solution of the purified product obtained in (2) into a synthesis kettle equipped with a reflux condenser, start the agitator, add 10 times the molar amount of HCl solution dropwise to the synthesis kettle, and then ...

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Abstract

The invention provides a process for accelerating the dyeing of cotton fabrics with multi-active base particles. The present invention also provides multi-active-based microparticles or compositions for promoting the dyeing process of cotton fabrics, which contain cationic compounds of formula (I). The dyeing-promoting process of the multi-active base microparticles of the invention improves the dye uptake rate and color fastness, enhances the sterilization ability of cotton fabrics, and has the environmental protection effects of water saving, energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the field of cotton fabric dyeing, in particular to a process for promoting dyeing by using multi-active group micromolecules. Background technique [0002] Cotton fabric is hygroscopic, breathable, and soft to the touch. In addition to being mainly used to make underwear, sportswear, and T-shirts, it is also widely used in outerwear and even fashion fields due to its rich variety and high-grade quality. Cotton knitted fabrics are mainly dyed with reactive dyes, and the dyeing technology is already a mature process in cotton fabric dyeing. [0003] Natural dyes come from nature, are harmless to human health, and have good compatibility with the environment, do not pollute the environment, are biodegradable, and meet the requirements of modern people for their own health and environmental protection. Therefore, the process technology of reducing dyeing water is more in line with the concept of modern environmental protection an...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/22D06P1/38D06P3/66D06M13/467C07C215/40C07C213/04C07C211/58C07C209/10D06M101/06
CPCC07C209/10C07C213/04D06M13/467D06M16/00D06M2101/06D06P1/38D06P3/66D06P5/22C07C211/58C07C215/40
Inventor 袁平王炳慨
Owner 天和科技(香港)有限公司
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