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Disperse dye composition and preparation method and application thereof

A technology of disperse dyes and compositions, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problems of different content of harmful substances, the impact of printing and dyeing plant sewage on the ecological environment, and the loss of printing and dyeing plants.

Active Publication Date: 2017-05-31
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

[0088] 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;

[0089] b) Add water and ice to the diazo dilution kettle, cool down to below 5°C, press into the diazo solution to dilute, control the dilution temperature to be no more than 5°C, after pressing, add diatomaceous earth, and stir for 30 minutes, Filter, pour the diazo filtrate into the coupling kettle;

[0090] c) After the diazo filtrate has been poured in, start the coupling kettle to stir, add urea and Pingjia, add the coupling component N-cyanoethyl-N-benzylaniline, adjust the acidity of the coupling material to 8% (acidity of sulfuric acid), and control the reaction Temperature 15-25°C, keep warm for 4 hours, slowly heat up to 30-35°C, keep w...

preparation example 2

[0092] 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;

[0093] 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, heat the diazotization reaction at 25-30°C for 6 hours to obtain the diazo component, which is ready for use;

[0094] c) Coupling: Add water, sulfuric acid, and acetaminophen to the coupling kettle, add the coupling component N,N-diethyl-m-acetamidoaniline, stir for 30 minutes, add ice and isooctyl alcohol, and control the temperature below 10°C. Add dropwise the diazo component to be used for about 5 hours. After the addition is complete, control the temperature at 10-1...

preparation example 3-7，9-15

[0096] According to the same method of Preparation Example 2, the difference is that the intermediate 2,4-dinitro-6-chloroaniline and the coupling component N,N-diethyl-m-acetamidoaniline in Preparation Example 2 are respectively used The intermediates and coupling components in Table 1 are replaced to prepare products (II-2)~(II-6) and formulas (II-8)~(II-14),

[0097] Table 1

[0098] project intermediate Coupling components Preparation example 3 2,4-Dinitro-6-bromoaniline N,N-Diethyl-m-acetamidoaniline Preparation Example 4 2,4-Dinitro-6-chloroaniline N,N-Diallyl-2-methoxy-5-acetamidoaniline Preparation Example 5 2,4-Dinitro-6-bromoaniline N,N-Diallyl-2-methoxy-5-acetamidoaniline Preparation Example 6 2,4-Dinitro-6-chloroaniline N,N-Diethyl-2-methoxy-5-acetamidoaniline Preparation Example 7 2,4-Dinitro-6-bromoaniline N,N-Diethyl-2-methoxy-5-acetamidoaniline Preparation Example 9 2,4-Dinitro-6-chloroaniline N...

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Abstract

The invention relates to a disperse dye composition and a preparation method and application thereof. The disperse dye composition comprises a component A as shown in formula (1), a forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, any auxiliary materials and other unavoidable impurities. According to the disperse dye composition, the total content of the forbidden aromatic amine compound is 10ppm or lower, the total content of each chlorinated phenol is 0.5ppm or lower, and the total content of chlorobenzene and chlorotoluene (COCs) is 1ppm or lower. Various environment-protective indexes of the disperse dye composition conform to the requirement of Oeko-Tex Standard 100 (2016), and various performance such as the fold strength, sublimation fastness and the like is excellent. Furthermore, after the disperse dye composition of the invention is used for dyeing a fabric, the dyed fabric conforms to the requirements of a baby level of the Oeko-Tex Standard 100 (2016). (Shown in the description).

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): C09B67/22C09B67/38C09B67/36D06P1/18D06P1/19D06P3/54D06P3/85
CPCC09B67/0051C09B67/0079C09B67/008D06P1/18D06P1/19D06P3/004D06P3/54D06P3/82
Inventor 阮光栋赵国生丁兴成顾伟娣章美忠袁芝琴
Owner ZHEJIANG RUNTU INST
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