Wet crock fastness improver and preparation method thereof

A technology of wet rubbing fastness and improving agent, which is applied in the field of wet rubbing fastness improving agent and its preparation, which can solve the problems of dye lifting, color fixing rate and low color fastness, and achieve good color fixing effect

Inactive Publication Date: 2016-09-07
潘明华
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It is one of the best choices to replace banned dyes and other dyes for cellulose fibers, but because its molecules contain more water-soluble groups, the dyes are easy to combine with water and cannot form with fibers during the dyeing process. Covalently bound, resulting in lower dye lift, color fixation and color fastness

Method used

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  • Wet crock fastness improver and preparation method thereof

Examples

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Comparison scheme
Effect test

Embodiment 1

[0022] A wet rubbing fastness improving agent is prepared from the following ingredients in parts by weight: 5 parts of epoxy soybean oil, 20 parts of castor oil, 1 part of sorbitol, 2 parts of trimethylolpropane, N,N-dimethyl 5 parts of methyl formamide, 2 parts of isophorone diisocyanate, 1 part of cetylpyridinium bromide, 1 part of alkyl dimethyl ammonium chloride, 1 part of sodium bisulfate, 0.2 part of dibutyltin dilaurate , 0.2 parts of dibutyltin diacetate, 2 parts of polyvinyl alcohol, 2 parts of triethylamine, 5 parts of acetone, and 10 parts of distilled water.

[0023] The preparation method of the above-mentioned wet rubbing fastness improving agent is as follows: (1) mix epoxidized soybean oil and castor oil, and vacuum-dry at 100° C. for 2 hours; (2) mix with isophorone diisocyanate, cetyl bromide Mix alkylpyridine and alkyldimethylammonium chloride, add it to a four-necked bottle, add dibutyltin dilaurate and dibutyltin diacetate while stirring, and react for 1 ...

Embodiment 2

[0025] A wet rubbing fastness improving agent is prepared from the following ingredients in parts by weight: 6 parts of epoxidized soybean oil, 22 parts of castor oil, 1.5 parts of sorbitol, 2.5 parts of trimethylolpropane, N,N-dimethyl 6 parts of methyl formamide, 2.5 parts of isophorone diisocyanate, 1.5 parts of cetylpyridinium bromide, 1.2 parts of alkyl dimethyl ammonium chloride, 1.3 parts of sodium bisulfate, 0.3 parts of dibutyltin dilaurate , 0.25 parts of dibutyltin diacetate, 2.5 parts of polyvinyl alcohol, 3 parts of triethylamine, 6 parts of acetone, and 12 parts of distilled water.

[0026] The preparation method of the above-mentioned wet rubbing fastness improving agent is as follows: (1) mix epoxidized soybean oil and castor oil, and vacuum-dry at 105° C. for 2.5 hours; (2) mix with isophorone diisocyanate, cetyl bromide Mix alkylpyridine and alkyldimethylammonium chloride, add it to a four-necked bottle, add dibutyltin dilaurate and dibutyltin diacetate while...

Embodiment 3

[0028] A wet rubbing fastness improving agent is prepared from the following ingredients in parts by weight: 7.5 parts of epoxidized soybean oil, 25 parts of castor oil, 2 parts of sorbitol, 3 parts of trimethylolpropane, N,N-dimethyl 7.5 parts of methyl formamide, 3 parts of isophorone diisocyanate, 2 parts of cetylpyridinium bromide, 1.5 parts of alkyl dimethyl ammonium chloride, 1.5 parts of sodium bisulfate, 0.35 parts of dibutyltin dilaurate , 0.3 parts of dibutyltin diacetate, 3 parts of polyvinyl alcohol, 3.5 parts of triethylamine, 7.5 parts of acetone, and 15 parts of distilled water.

[0029] The preparation method of the above-mentioned wet rubbing fastness improving agent is as follows: (1) mix epoxidized soybean oil and castor oil, and vacuum-dry at 105° C. for 2.5 hours; (2) mix with isophorone diisocyanate, cetyl bromide Alkyl pyridine and alkyl dimethyl ammonium chloride are mixed, added to a four-necked bottle, dibutyltin dilaurate and dibutyltin diacetate are...

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Abstract

The invention provides a wet crock fastness improver and a preparation method thereof. The preparation method comprises the following steps of: firstly, mixing epoxy soybean oil and castor oil, performing vacuum drying, mixing with isophorone diisocyanate, hexadecyl pyridine bromide, alkyl dimethyl ammonium chloride, adding into a four-neck bottle, stirring, at the same time adding di-butyl tin dilaurate and dibutyl tin diacetate, performing heating reaction, further adding sorbitol, trimethylolpropane and N,N-dimethyl formamide, keeping the temperature, continuously stirring to react, cooling, adding triethylamine and acetone to react continuously, transferring the reaction liquid into a flask, slowly pouring into a solution of sodium bisulfate and distilled water, shearing by using a shearing and dispersion machine, adding polyvinyl alcohol, continuously stirring, and removing acetone in vacuum, thereby obtaining the wet crock fastness improver. The wet crock fastness improver provided by the invention is good in color fixing effect, high in dry crock fastness, generally identical in wet crock fastness and dry crock fastness, free of color change in rinsing, free of color staining, and also relatively high in rinsing color fastness.

Description

Technical field [0001] The present invention involves the field of textile materials, and it specifically involves a wet ricuals improvement agent and their preparation methods. Background technique [0002] Active dyes are also known as reactive dyes. Its molecules contain reactive groups, which can be combined with covalent bonds with amino groups and hydroxyl groups on the fiber, so that the dyes are fixed on the fiber.It is one of the best choices for disabled dyes and other cellulose fiber dyes, but because its molecules contain more water -soluble groups, the dye is easy to combine with water during the dyeing process.The combination of covalent prices leads to low dye improvement, color fixing rate and color fastness.At present, the method of increasing the wet rubbing degree of fabrics mainly includes the following: adequate front treatment, selection of appropriate dyeing materials and dyeing processes, and proper collation of fabrics.Among them, the fabric is properly s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/52D06P1/38C08G18/75C08G18/67C08G18/32
CPCD06P1/5285C08G18/3206C08G18/36C08G18/755D06P1/38D06P1/5228
Inventor 潘明华
Owner 潘明华
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