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Yellow active dye composition and its use

A technology of reactive dyes and compositions, applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve problems affecting industrial application practices, etc., and achieve good washable performance, bright shade, and good fastness effects

Active Publication Date: 2009-12-09
ARGUS SHANGHAI TEXTILE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These defects directly affect the industrial application practice of this structural yellow reactive dye

Method used

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  • Yellow active dye composition and its use
  • Yellow active dye composition and its use
  • Yellow active dye composition and its use

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preparation example Construction

[0040] The preparation method of the yellow reactive dye composition of the present invention comprises mixing the above-mentioned dye I: dye II in a prescribed weight ratio. Mixing can be performed by various conventional methods, such as mechanical mixing methods. When mixed, Dye I and Dye II may be present in powder form, or in granular form, or in aqueous solution.

[0041] In the structural formula of dye I or II, when X is halogen, especially Cl, F, it can be prepared according to methods known in the art. Company] and CN 1443219 (2003) [DyStar Corporation] (incorporated herein by reference).

[0042] When X is -HNCN in the structural formula of dye I, it can be prepared according to methods known in the art, and its preparation method includes:

[0043] a. The 2,4-diaminobenzenesulfonic acid aqueous solution is added to the cyanuric halide suspension to carry out the first condensation. The temperature is controlled at 0-5° C., the pH value of the reaction solution i...

preparation Embodiment 1

[0051] Dye I represented by the formula 1 preparation

[0052]

[0053] In a 2-liter three-necked round-bottomed flask equipped with a mechanical stirrer, a dropping funnel and a thermometer, slowly add 94 grams of 2,4-diaminobenzenesulfonic acid aqueous solution to a mixture of 92 grams of cyanuric chloride suspended in 800 milliliters of water. The suspension undergoes a first condensation. The temperature is controlled at 0 to 5° C., the pH value of the reaction solution is controlled to be 2 to 3 with sodium hydroxide solution, and the reaction time is about 2 hours.

[0054] Then, in the case of stirring, add 86.5 grams of p-aminobenzenesulfonic acid aqueous solution to the reaction solution to carry out the second condensation, the pH value of the reaction solution is controlled at 2~3, the reaction temperature rises to 50~60 ℃, and the reaction continues for about 2 to 3 hours.

[0055] Thereafter, 21 grams of cyanamide was added to the above reaction solution for...

preparation Embodiment 2

[0059] Dye II represented by the formula 1 preparation

[0060]

[0061] In a 2-liter three-necked round-bottomed flask equipped with a mechanical stirrer, dropping funnel and thermometer, 21 g of cyanamide was added to a suspension of 92 g of cyanuric chloride suspended in 800 ml of water for the first condensation. The temperature is controlled at 0-5 DEG C, the pH value of the reaction solution is controlled to be 2-3 with sodium hydroxide solution, and the reaction time is about 1 hour.

[0062] Then, the pH value of the reaction solution was adjusted to 2.0-3.0, and 94 grams of 2,4-diaminobenzenesulfonic acid aqueous solution was slowly added to carry out the second condensation. The reaction temperature is controlled at 35-40 DEG C, the pH value of the reaction solution is controlled at 2.0-3.0, and the reaction is carried out for about 4 hours.

[0063] After that, 140 grams of (β-sulfate ethyl sulfone) aniline was slowly added to the condensation solution for the ...

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Abstract

The present invention provides a kind of yellow reactive dye composition comprising following two kinds of known yellow reactive dyes I and II with the weight ratio of 90~10:10~90, it can bring into play the performance than any single reactive dye wherein All have significantly improved synergistic effects, and have significantly improved strength, color fixation, compatibility with other dyes and level dyeing. In the formula, X is selected from halogen atoms or -HNCN; Y is selected from -CH2CH2OSO3M or -CH=CH2, and M is selected from H or alkali metals.

Description

technical field [0001] The invention relates to a yellow reactive dye composition and its application in fiber dyeing. Background technique [0002] Reactive dyes have the characteristics of bright color, excellent application performance, convenient use and strong applicability. In recent years, due to environmental and ecological constraints, users have higher and higher requirements for the fastness of dyed fabrics and the application properties of dyes. [0003] The development of yellow reactive dyes has always been a hot spot in the dye industry. Various yellow reactive dyes with different structures show different application properties. [0004] During the 1990s, the patent application CN 1118796 (1996) of Hoechst Company relates to a black fiber reactive azo dye composition, in which it is mentioned that the following golden yellow reactive dyes can be used as one of the components of the blended black reactive dyes: one. [0005] [0006] Since then, in the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B67/24D06P1/38
Inventor 顾喆栋曾建平谢兵
Owner ARGUS SHANGHAI TEXTILE CHEM
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