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Orange active dye compound, and preparation method and applications thereof

A technology for reactive dyes and compounds, which is applied to orange reactive dye compounds, a preparation method thereof, and an application field in cellulose fiber printing and dyeing, and achieves the effects of novel structure, good binding stability and excellent performance.

Inactive Publication Date: 2016-02-24
ZHEJIANG LONGSHENG GROUP +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Patent document US4284554A has disclosed a group of reactive orange dye compounds synthesized by 4-methylaniline-2,5-disulfonic acid, but there is still room for improvement in color fastness

Method used

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  • Orange active dye compound, and preparation method and applications thereof
  • Orange active dye compound, and preparation method and applications thereof
  • Orange active dye compound, and preparation method and applications thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] 1. A contraction reaction

[0047] Weigh 18.4g (0.1mol) of cyanuric chloride, 30mL of bottom water, 100g of ice, and 0.5g of MF for beating for 20min. Weigh 23.9g (0.1mol) of J acid and 250mL of bottom water, adjust the pH to 6.5-7.0 with 30% liquid caustic soda, add dropwise to the cyanuric chloride solution, and control the pH to 2.0-3.0 during the dropwise addition. Temperature 0-5°C. After the addition, adjust the pH to 3.0-3.5 with sodium bicarbonate, react at a temperature of 0-5°C for 2-3 hours, then detect with ethanol solution of 4-dimethylaminobenzaldehyde, the microscopic yellow is the end point, and a shrinkage solution is obtained ,spare.

[0048] 2. Diazo reaction

[0049] Weigh 10.7g (0.1mol) of p-methylaniline and add it dropwise to 24g of 98% sulfuric acid (containing 0.24mol of sulfuric acid) at a temperature of 50-55°C, stir for 30min, and add 32g of 66% oleum dropwise within 2-3h (SO 3The content is 0.26mol), and the temperature is controlled at...

Embodiment 2～6

[0057] According to the preparation method in Example 1, different coupling components are used to prepare, and the dye compounds with the structures shown in the following table 1 can be prepared respectively:

[0058] Table 1

[0059]

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PUM

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Abstract

The invention discloses an orange active dye compound, and a preparation method and applications thereof. The structure of the orange active dye compound is represented by general formula (I), wherein R1 is used for representing C1-C4 alkyl, R2 is used for representing a group disclosed in the invention, R3 is used for representing H or C1-C4 alkyl, X is used for representing chorine or fluorine, and M is used for representing H or alkali metal. The invention also provides applications of the orange active dye compound in cellulosic fiber dying; the orange active dye compound is high in lifting properties and solubility, possesses excellent washing resistance, friction resistance, and colour fastness, and is capable of satisfying requirements of common printing, and especially printing technology used for automatic size mixing systems, and binding stability with cellulosic fiber is high.

Description

(1) Technical field [0001] The invention relates to a reactive dye compound, in particular to an orange reactive dye compound and its preparation method and application in cellulose fiber printing and dyeing. (2) Background technology [0002] Reactive orange K-GN is often used in the printing of cellulose fibers due to its bright color. Its structural formula is as follows: [0003] [0004] The main problem that the above-mentioned dyes exist is that the solubility is not good, and it is easy to produce color points. In order to solve this problem, the present invention uses 4-methylaniline-2,5-disulfonic acid instead of aniline-2,5-disulfonic acid, and through structural modification, a group of dyes with a shade similar to orange K-GN are obtained. Solubility is improved. Patent document US4284554A has disclosed a group of reactive orange dye compounds synthesized by using 4-methylaniline-2,5-bissulfonic acid, but there is still room for improvement in terms of colo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/085D06P1/382D06P3/66
Inventor 张友珍李世华周鹏飞何耀耀周俊锋汪键何淑娥
Owner ZHEJIANG LONGSHENG GROUP
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