Yellow double-reactive-group dye compound, preparation method and composition thereof

A technology of dual reactive dyes and compounds, which is applied in the field of yellow dual reactive dye compounds, can solve the problems of sunlight, poor rubbing fastness, old textile appearance, staining of dyes, etc., and achieve good light fastness and bright colors , Good whitening effect

Inactive Publication Date: 2013-04-03
ZHEJIANG YIDE CHEM +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although traditional yellow dyes can dye brighter colors, their poor fastness to sunlight and rubbing not only makes textiles look old, but also stains white or other colored fibers when the dye falls off, resulting in staining, color matching phenomenon

Method used

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  • Yellow double-reactive-group dye compound, preparation method and composition thereof
  • Yellow double-reactive-group dye compound, preparation method and composition thereof
  • Yellow double-reactive-group dye compound, preparation method and composition thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] Example 1: Detailed preparation method of dye (I-1).

[0048] (1) The first diazotization reaction of para-ester: Weigh 29.3g of para-ester dry powder, add 50g of ice, add 100g of water and beat for one hour, then add 13.5g of 30% hydrochloric acid, stir for 1 minute, and dissolve the clear 24.3g of 30% sodium nitrite is slowly added dropwise into the solution for diazotization reaction, the temperature is controlled at 0-20°C and the pH value is controlled at 1.0-2.0 during the dropping process. And make the starch potassium iodide test paper microscopically blue, and the Congo red test paper microscopically blue. After the sodium nitrite solution is added dropwise, keep the temperature at 0-20°C, control the pH value at 1.0-2.0, and then stir and react for 30 minutes, then use sulfamic acid to balance the excess sodium nitrite, and perform the first diazotization reaction of the para-ester The formula is as follows.

[0049] (2) Coupling and ring-closing reaction:...

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PUM

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Abstract

The invention discloses a yellow double-reactive-group dye compound, a preparation method and a composition thereof. Although the traditional yellow dye can present a fresh brilliant color, the dye not only causes old appearance of a textile, but also stains fibers in white or other colors and generates staining and overlapping due to sunshine and poor rubbing fastness. The general formula of the compound is as follows, wherein R1, R2, R3 and R4 are hydrogen, C1-C2 alkyl, halogen, -OCH3 or SO3M1; M1 is hydrogen or alkali metal, and Y1 andY2 are -CH=CH2 or -C2H4OSO3M2; and the definition of M2 is the same with that of M1. The dye has good light fastness and prominent wet fastness, the fixation rate is high, the lifting power is good, various fastnesses satisfy requirements, and particularly the light fastness is good.

Description

1. Technical field [0001] The invention relates to a yellow double reactive dye compound, a preparation method, a composition and its dyeing application on textile fibers. 2. Background technology [0002] With the development of textile fiber and printing and dyeing technology in the world, higher requirements are put forward for the coloring performance, economic performance and environmental protection performance of dyes. Yellow dyes have become a hot spot for research and improvement in the industry because of their wide application in single-color and mixed-color varieties. . Although traditional yellow dyes can dye brighter colors, their poor fastness to sunlight and rubbing not only makes textiles look old, but also stains white or other colored fibers when the dye falls off, resulting in staining, The phenomenon of matching colors. But this reactive yellow is a reactive dye with green light yellow, its shade is similar to reactive yellow 37#, but the process route...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/51C09B67/24C09B67/22D06P1/384
Inventor 秦杰峰董华青王高峰贾建洪孟胜峰李玲潘克存
Owner ZHEJIANG YIDE CHEM
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