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Disperse dye composition, and preparation method and application thereof

A technology for disperse dyes and compositions, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve problems such as unsatisfactory environmental protection results, losses in printing and dyeing plants, and different content of harmful substances

Active Publication Date: 2017-04-26
ZHEJIANG RUNTU INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is still a problem that the dye chemicals used for dyeing contain high levels of harmful substances, which causes the sewage and sludge of printing and dyeing factories to seriously affect the ecological environment.
At the same time, due to different textile printing and dyeing processes, or different amounts of dyes, the content of harmful substances contained in textile dyes is also different, and the environmental protection results are not ideal.
In this way, printing and dyeing wastewater, sludge and some textile fabrics that do not meet environmental protection requirements cause greater losses to downstream printing and dyeing factories.

Method used

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  • Disperse dye composition, and preparation method and application thereof
  • Disperse dye composition, and preparation method and application thereof
  • Disperse dye composition, and preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0102] a) Add the intermediate 2,4-dinitro-6-chloroaniline into water for beating, add 30% sodium hydroxide solution, adjust the pH to 11, raise the temperature to 60° C., keep it warm for 30 minutes, filter, wash with water, and dry;

[0103] b) Add sulfuric acid to the diazo kettle, start stirring, then slowly add nitrosyl sulfuric acid, control the temperature not to exceed 40°C, after the addition is complete, cool down to 20°C, slowly and evenly add the 2,4- After the addition of dinitro-6-chloroaniline, the diazotization reaction was carried out at 25-30°C for 6 hours to obtain the diazo component, which was then used;

[0104] c) Add water, sulfuric acid, and Pingping to the coupling kettle, add the coupling component N,N-diethyl-m-acetaniline, stir for 30 minutes, add ice and isooctyl alcohol, control the temperature below 10°C, and add dropwise The diazo component to be used is added dropwise for about 5 hours. After the addition is complete, the temperature is contro...

preparation example 2

[0106] According to the same method of Preparation Example 1, the difference is that the intermediate 2,4-dinitro-6-chloroaniline in Preparation Example 1 is replaced by 2,4-dinitro-6-bromoaniline to prepare The product (I-2) is obtained. The resulting product (I-2) contains the structure of formula (1-2) as component A.

preparation example 3

[0108] a) Add sulfuric acid to the diazo kettle, start stirring, then slowly add nitrosyl sulfuric acid, control the temperature not to exceed 40°C, after the addition, cool down to 10°C, slowly and evenly add the intermediate p-nitroaniline for about 3 hours, Add complete, keep warm for 2.5 hours, obtain diazo component, stand-by;

[0109] b) Add water and ice to the diazo dilution kettle, cool down to below 5°C, press into the diazo solution for dilution, control the dilution temperature to be no more than 5°C, after pressing, add activated carbon, stir for 30 minutes, filter, Put the diazo filtrate into the coupling kettle;

[0110] c) After the diazo filtrate is poured in, the coupling kettle is started to stir, urea is added, Pingping is added, the coupling component N, N-diacetoxyethyl m-acetaniline is added, and the acidity of the coupling material is adjusted to 10% (acidity of sulfuric acid), Control the reaction temperature at 15-25°C, keep it warm for 4 hours, slowly...

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Abstract

Disclosed are a disperse dye composition, and a preparation method and application thereof. The disperse dye composition comprises a component A composed of one or more of compounds shown as a formula (1) (please see the specifications for the formula), a component B composed of one or more of compounds shown as a formula (2) (please see the specifications for the formula), forbidden aromatic amine compounds, chlorinated phenols, chlorobenzene and chlorotoluene, optional auxiliaries, and other unavoidable impurities. The total content of the forbidden aromatic amine compounds is 10 ppm or below, the respective content of the various chlorinated phenols is 0.5 ppm or below, and the total content of the chlorobenzene and chlorotoluene is 1 ppm or below. The various environment protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100(2016). In addition, after fabric is dyed through the disperse dye composition, the dyed fabric meets the baby level requirements of Oeko-Tex Standard 100(2016).

Description

technical field [0001] The invention relates to a disperse dye composition and its preparation method and application. The disperse dye composition is suitable for dyeing or printing polyester and its blended fabrics. Background technique [0002] Environmentally friendly dyes have restrictions on the content of substances harmful to the human body. However, most of them are for environmental protection control of textile fabrics, that is, to measure the dyes on textile fabrics to control the content of harmful substances. As a result, there is still a problem that the dye chemicals used for dyeing have high levels of harmful substances, causing the sewage and sludge of printing and dyeing factories to seriously affect the ecological environment. At the same time, due to the difference in textile printing and dyeing process, or the difference in the amount of dye, the content of harmful substances contained in textile dye is also different, and the environmental protection ...

Claims

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Application Information

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IPC IPC(8): C09B67/22D06P1/18D06P1/19D06P3/54D06P3/85
CPCC09B67/0051D06P1/18D06P1/19D06P3/004D06P3/54D06P3/82
Inventor 顾伟娣陈宝兴丁兴成章月芳景雪苹袁芝琴
Owner ZHEJIANG RUNTU INST
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