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Dye component and its use

一种组成物、染料的技术，应用在有机染料、染色法、纺织品和造纸等方向，能够解决无法克服染深性不佳及洗净性不良、难以满足等问题，达到低日光坚牢度、低尼龙污染、优异染深性的效果

Inactive Publication Date: 2006-06-07
ETHICAL INT WAREHOUSING TRADING SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Known dyes seem to have difficulty satisfying all properties in these requirements
[0005] In the existing reactive dye composition, there is a lack of dyes with good dyeing depth, excellent washability and low nylon (Nylon) staining, which makes it impossible to overcome dyeing when dyeing nylon / cotton (N / C). Poor depth and poor cleansing

Method used

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  • Dye component and its use
  • Dye component and its use
  • Dye component and its use

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0108] 115.6 parts of 1-aminobenzene-2-sulfonic acid-4-β-sulfatoethanesulfonyl (1-aminobenzene-2-sulfonic acid-4-β-sulfatoethylsulfone) were dissolved and dispersed in 1000 parts of ice water, and then Add 80 parts of 32% HCl aqueous solution to it and stir thoroughly, then add 27 parts of sodium nitrite aqueous solution, and then continue stirring at 0 to 5° C. until the diazotization is completed. Next, 48.7 parts of 3,5-diaminobenzoic acid powder was added, and the reaction liquid mixture was stirred until the coupling reaction was completed. Finally, sodium chloride is added for salting out, and the mixture is taken out by filtration to obtain compound (P-1).

[0109]

[0110] Dissolve and disperse 16.8 parts of 1-aminobenzene-4-β-sulfatoethylsulfone (1-aminobenzene-4-β-sulfatoethylsulfone) in 150 parts of ice water, then add 8 parts of 32% HCl aqueous solution to fill it Then add 4.3 parts of sodium nitrite aqueous solution, and then continue stirring at 0 to 5°C unti...

preparation Embodiment 2

[0113] Dissolve 33.8 parts of 1-aminobenzene-4-β-sulfatoethylsulfonyl (1-aminobenzene-4-β-sulfatoethylsulfone) in 200 parts of ice water, then add 16 parts of 32% HCl aqueous solution to fill it Then add 8.7 parts of sodium nitrite aqueous solution, and then continue stirring at 0 to 5°C until the diazotization is completed. Then add 9.1 parts of 3,5-diaminobenzoic acid (3,5-diaminobenzoic acid) powder, and slowly adjust the pH value to 3.5 with sodium bicarbonate and stir the mixture at a temperature of 10-15°C until the coupling reaction is completed. Finally, add sodium chloride for salting out, and take out by filtration to obtain compound (3).

[0114]

preparation example 3

[0116] Dissolve 4.8 parts of 2-amino-4-((2,3-dibromopropionyl)amino)benzenesulfonic acid (2-amino-4-((2,3-dibrobopropionyl)amino)benzene sulfonic acid Disperse in 60 parts of ice water, then add 3.2 parts of 32% HCl aqueous solution to fully stir, then add 0.9 parts of sodium nitrite aqueous solution, and then continue stirring at room temperature until diazotization is completed. Then 6.1 parts of compound (P-1) was added, and the pH value was slowly adjusted to 5.0 with sodium carbonate, and the mixture was stirred at room temperature until the coupling reaction was completed. Finally, add sodium chloride for salting out, and take out by filtration to obtain compound (4).

[0117]

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Abstract

The dye composition includes at least a kind of azo dyes in the structure as shown and one kind of disazo dyes in the structure as shown. The dye composition has high dyeing degree, high pile-on property, excellent water washability and low Nylon contamination property, and is suitable for dyeing and printing cotton, staple rayon, hemp and other cellulose fiber, wool, silk, polyamide, etc. to obtain well dyed matter.

Description

technical field [0001] The present invention relates to a dye composition, in particular to a black or dark blue reactive dye composition. Background technique [0002] Reactive dyes used for dyeing and printing of cellulose fibers or cellulose-containing fibers must have excellent performance in various properties, such as leveling, reproducibility, solubility ( solubility) and fastness (fastness), etc. [0003] In the market, in view of the quality of the dyed product and the economic benefits of the dyeing method, there is an increasing demand for dyeing with reactive dyes in practice, so there is still an urgent need for novel reactive dyes that can improve properties, especially in applications. [0004] In terms of dyeing application requirements, dyes with excellent color uptake and high reactivity are especially required at present, and dyes that can fully and easily wash off unfixed parts. It seems difficult for known dyes to satisfy all properties in these requir...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/36
CPCC09B67/0057C09B67/0059D06P1/38
Inventor 黄惠卿李静安李雪绒赖宝昆许呈祥曾雅琦
Owner ETHICAL INT WAREHOUSING TRADING SHANGHAI
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