A kind of acid dye dyeing method of cotton textile

An acid dye and dyeing method technology, applied in the field of textile printing and dyeing, can solve the problems of poor abrasion resistance and high dye content, and achieve the effects of increasing dye uptake, improving light fastness and saving processing costs.

Active Publication Date: 2018-07-31
嘉兴市金宇达染整有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] For the problems referred to above, the object of the present invention is to modify the acid dye with the carboxylated carbocation polymer nanosphere solution, thereby, realize acid dye dyeing, overcome the water resistance of the dye, poor light fastness and abrasion resistance and dye wastewater Problems such as high dye content in medium

Method used

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  • A kind of acid dye dyeing method of cotton textile
  • A kind of acid dye dyeing method of cotton textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] (1) Preparation of carboxylated carbon nanospheres:

[0024] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.025:1, the suspension was prepared by ultrasonic treatment for 10-20 minutes, and the suspension was soaked for 25 hours, then heated at 110°C to reflux for 1.5 hours, and finally washed and washed repeatedly. Separate until the pH is neutral to remove impurities in the carbon nanospheres, and bring active reactive groups such as carboxyl groups on the surface, thereby obtaining carboxylated carbon nanospheres.

[0025] (2) Prepare the modified carboxylated carbon nanospheres into a 0.02% water dispersion, then add the carboxylated carbon nanosphere solution into the dyeing bath and rotate for 20 minutes, and finally press the mass of the carboxylated carbon nanospheres and the acid dye Add acid dye at a ratio of 0.07:1, and fix the color with formic acid after dyeing is finished.

Embodiment 2

[0027] (1) Preparation of carboxylated carbon nanospheres:

[0028] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.02:1, the suspension is prepared by ultrasonic treatment for 10 to 20 minutes, soaked for 24 hours, then heated and refluxed at 100°C for 1 hour, and finally washed and separated repeatedly Until the pH is neutral, the impurities in the carbon nanospheres are removed, and the surface of the carbon nanospheres is equipped with active reactive groups such as carboxyl groups to obtain carboxylated carbon nanospheres.

[0029] (2) Prepare the modified carboxylated carbon nanospheres into a 0.01% aqueous dispersion, then add the carboxylated carbon nanosphere solution to the dye bath and rotate for 10 minutes, and finally press the mass of the carboxylated carbon nanospheres and the acid dye Add acid dye at a ratio of 0.005:1, and fix the color with formic acid after dyeing is finished.

Embodiment 3

[0031] (1) Preparation of carboxylated carbon nanospheres:

[0032] After mixing the carbon nanospheres with the mixed solution of sulfuric acid and hydrochloric acid according to the mass ratio of 0.03:1, the suspension is prepared by ultrasonic treatment for 10-20 minutes, soaked for 30h, then heated at 120℃ to reflux for 2h, and finally washed and separated repeatedly Until the pH is neutral, the impurities in the carbon nanospheres are removed, and the surface of the carbon nanospheres is equipped with active reactive groups such as carboxyl groups to obtain carboxylated carbon nanospheres.

[0033] (2) Prepare the modified carboxylated carbon nanospheres into a 0.03% water dispersion, then add the carboxylated carbon nanosphere solution to the dye bath and rotate for 30 minutes, and finally press the mass of the carboxylated carbon nanospheres and acid dye Add acid dye at a ratio of 0.01:1, and fix it with formic acid after dyeing is finished.

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Abstract

The invention relates to an acid dye dyeing method for cotton textiles. Cotton textiles are first treated with an acidified carbocation polymer nanosphere solution, and then dyed with an acid dye for color fixation. The preparation method of the acidified carbon nanospheres is as follows: the carbon nanospheres are mixed with an acidic solution, and then subjected to ultrasonic treatment, then standing and soaking, then heating, condensing and refluxing, and repeated washing and separation until the pH is neutral. Acidic dyes are modified with an acidified carbocationic polymer nanosphere solution, so that the cationic polymer nanospheres are used to treat cotton textiles to achieve dyeing with acid dyes, and overcome the poor water resistance, light fastness and abrasion resistance of dyes and dye wastewater Problems such as high dye content in the medium.

Description

Technical field [0001] The invention belongs to the field of textile printing and dyeing, and relates to a method for dyeing cotton textiles with acid dyes. Background technique [0002] Cotton is an important natural cellulose fiber. It has excellent wearing properties such as comfort and softness, good moisture absorption, and resistance to static electricity. It is widely used in the manufacture of textile fabrics and occupies an important position in the textile industry worldwide. It accounts for about 65% of the total fiber output. Acid dyes have the advantages of bright colors, complete chromatograms, and high safety to the human body. However, due to their small molecules, many hydrophilic groups, poor water resistance, not washable, and no affinity for cellulose fibers, they cannot be used in cotton. Dyeing of fiber products. [0003] The commonly used dyes for dyeing cotton textiles are reactive dyes, direct dyes, vat dyes, etc. However, because cotton fibers are large ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/39D06P1/673D06P3/60D06P3/85D06P5/04
Inventor 朱忠良
Owner 嘉兴市金宇达染整有限公司
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