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Pink dye

A pink dye technology, applied in the field of pink dyes, can solve the problems of poor fastness to wet treatment, etc., and achieve the effects of high absorption capacity, excellent dyeing depth, and excellent color fixing ability

Inactive Publication Date: 2014-05-14
WUXI VISION PRO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It can directly dye protein fibers in acidic, weakly acidic or neutral medium, but the wet fastness is poor

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0030] Disperse 9.32 parts of cyanuric chloride in 50 parts of ice water, then dissolve 15.97 parts of 1-amino-3,6-disulfonic acid-8-hydroxy-naphthalene in 60 ml of water, and add it to the above dispersion, and then keep The temperature is 6-8°C until the reaction is complete, and then, 13.77 parts of 4-(2-sulfatoethylsulfonyl)aniline is added to the above solution after diazotization by a known method to adjust the pH value to 6.0, then stir until the reaction is complete. Add 12.74 parts of 4-amino-2-(2-carboxyethyl)aminobenzenesulfonic acid to the above reaction solution, and control the pH value to 6.0-6.5, and raise the temperature to 40°C, stir until the reaction is complete, then cool down to 5-10°C. Then 14.05 parts of 4-(2-sulfatoethylsulfonyl)aniline, the diazonium salt diazotized by known methods, were added to the above solution, and the pH value was adjusted to 5.5-6.0. After the reaction is completed, the resulting solution is desalted and dried to obtain a pi...

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PUM

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Abstract

The invention discloses a pink dye which is a reactive dye with industrial value for cellulose fibers. The pink dye has the advantages of excellent color fixation capacity, excellent deep dyeing property and high absorption cleaning capacity, and is suitable for dyeing within a wide temperature range.

Description

technical field [0001] The present invention relates to a dye, in particular to a pink dye. Background technique [0002] Dyes are substances that can color fibers and other materials, and are divided into two categories: natural and synthetic. Dyes are colored substances. But a colored substance is not necessarily a dye. As a dye, it must be able to attach a certain color to the fiber without falling off or changing color. In 1856, Perkin invented the first synthetic dye - horsetail violet, which made organic chemistry a new discipline - dye chemistry. 1950s. Pattee and Stephen discovered that dyes containing dichloro-s-triazine groups bonded to hydroxyl groups on fibers under alkaline conditions, which marked the development of dyes from physical processes to chemical processes in fiber coloring, and created a period for the synthesis and application of reactive dyes . Dyes are not limited to the dyeing and printing of textiles, they are used in many departments such...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/513D06P1/384
Inventor 廖秀高
Owner WUXI VISION PRO
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