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Red disazo dye compound, preparation method and composition thereof

A technology of disazo dyes and compounds, applied in the direction of azo dyes, chemical instruments and methods, dyeing methods, etc., can solve the problems of old textile appearance, poor wet fastness, staining, etc., and achieve bright colors and wet Excellent treatment fastness and high fixation rate

Inactive Publication Date: 2008-11-19
SHANGYU XINSHENG CHEM IND +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For the azo red dye compounds disclosed in documents such as patents JP63243166, JP61272269, WO2007006653, US5354849, US5075428, US4645832, US5359042 and CN1884388A, although these dyes can dye brighter colors, their wet fastness is not good. It not only makes the appearance of the textile itself old, but also stains white or other colored fibers when the dye falls off, resulting in staining and color matching

Method used

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  • Red disazo dye compound, preparation method and composition thereof
  • Red disazo dye compound, preparation method and composition thereof
  • Red disazo dye compound, preparation method and composition thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] 1. The first condensation:

[0042] Add 11.95 g of acid J of formula (III-1) into 150 ml of water, and stir to dissolve.

[0043]Mix and beat 9.7 grams of cyanuric chloride of formula (IV-1), 50 ml of water, 50 grams of ice and 0.1 gram of dispersant MF for about 1 hour, control the temperature at 0-3°C, and slowly add the above-mentioned J acid solution under stirring, Use 10% soda ash to adjust the pH value to 2.8-3.2, and stir and react at 0-5°C for 2.5 hours, then use 10% soda ash to control the pH value to 3.8-4.2, and continue to stir and react at 0-5°C for 3 hours to obtain the formula The first condensation product of (a1).

[0044]

[0045] 2. Coupling reaction:

[0046] Add 13.85g of p-aminoazobenzene-4-sulfonic acid of formula (II-1) into 250ml of hot water at 50-60°C, stir to dissolve, then add 3.62g of 30% sodium nitrite (sodium nitrite) solution, and stir Uniform, while cooling to 20 ~ 25 ℃ for later use. Under stirring, the aforementioned p-aminoaz...

Embodiment 2

[0060] According to the preparation method of Example 1, use the cyanuric halide of the formula (IV) in the following table 1 and J acid to carry out the first condensation; then carry out the coupling reaction with the diazonium salt of the amine compound shown in the formula (II); coupling Product and the amine compound shown in formula (V) carry out condensation for the second time; Condensation product can make the red disazo dye compound shown in formula (Ia) in corresponding table 2 through aftertreatment; Further, without aftertreatment The dicondensation product can also continue to be hydrolyzed, and then do the post-treatment of the dye to obtain the red disazo dye compound shown in the formula (Ib) in the corresponding table 2.

[0061] Table 1

[0062]

[0063]

[0064] Table 2

[0065]

[0066]

[0067]

[0068]

[0069]

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PUM

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Abstract

The invention provides a red bisazo-based dye compound (I) and a method for preparing the same, relating to a red bisazo-based dye composition. The red bisazo-based dye compound of the invention, after being commercialize, can used for dyeing in liquid and paste states after micronization or in powdery and granular states after being dried by spray drying. The dye is a novel product combining acid dry and reactive dye. The dye has excellent light fastness and remarkable wet fastness and is particularly applicable to nylon dyeing which has high requirements on color fastness to washing, rubbing and sweat as well as dyeing of wood fibers and cotton fibers. The cloth dyed with the dye has stability of heat sensitivity, and excellent sunproof, washable and water resistant performances.

Description

(1) Technical field [0001] The invention relates to a red disazo dye compound, a preparation method 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. Red 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. For the azo red dye compounds disclosed in documents such as patents JP63243166, JP61272269, WO2007006653, US5354849, US5075428, US4645832, US5359042 and CN1884388A, although these dyes can dye brighter colors, their wet fastness is not good. It not only makes the appearance of the textile itself old, but at the same time, when the dye falls off, it will stain the white or other colored fibers, resulting in staining and color ...

Claims

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Application Information

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IPC IPC(8): C09B31/057C09B67/36D06P1/02D06P3/52
Inventor 阮伟祥陈志鑫陈建平胡顺勇刘爱军
Owner SHANGYU XINSHENG CHEM IND
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