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Disperse dye composition as well as preparation method and application thereof

A technology of disperse dyes and compositions, applied in dyeing methods, azo dyes, organic dyes, etc., which can solve the problems of different contents of harmful substances, the impact of sewage from printing and dyeing factories on the ecological environment, and high levels of harmful substances

Active Publication Date: 2017-06-06
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 as well as preparation method and application thereof
  • Disperse dye composition as well as preparation method and application thereof
  • Disperse dye composition as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0084] 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;

[0085] 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;

[0086] c) Add water, sulfuric acid and flatten to the coupling kettle, add the coupling component N,N-diallyl-2-methoxy-5-acetamidoaniline, stir for 30 minutes, add ice and isooctyl alcohol, Control the temperature below 10°C, add the diazo component to be used dropwise, the dropwise addition time is about 5 hours, after the addition is completed, control the te...

preparation example 2-4，6-12

[0088] According to the same method as Preparation Example 1, the difference is that the intermediate 2,4-dinitro-6-chloroaniline, coupling component N,N-diethyl-2-methoxy - 5-acetamidoaniline was replaced by the intermediates and coupling components in Table 2 to prepare products (I-2)-(I-4) and (I-6)-(I-12).

[0089] Table 1

[0090] project intermediate Coupling components Preparation example 2 2,4-Dinitro-6-bromoaniline N,N-Diallyl-2-methoxy-5-acetamidoaniline Preparation example 3 2,4-Dinitro-6-chloroaniline N,N-Diethyl-2-methoxy-5-acetamidoaniline Preparation Example 4 2,4-Dinitro-6-bromoaniline N,N-Diethyl-2-methoxy-5-acetamidoaniline Preparation Example 6 2,4-Dinitro-6-chloroaniline N,N-Diacetoxyethyl-2-methoxy-5-acetamidoaniline Preparation Example 7 2,4-Dinitro-6-bromoaniline N,N-Diacetoxyethyl-2-methoxy-5-acetamidoaniline Preparation example 8 2,4-Dinitro-6-chloroaniline N-allyl-N-acetoxyethyl-2-etho...

preparation example 5

[0092] According to the same method as Preparation Example 1, the difference is that the intermediate 2,4-dinitro-6-chloroaniline, coupling component N,N-diethyl-2-methoxy -5-Acetamidoaniline is replaced by intermediate 2,4-dinitro-6-bromoaniline and coupling component N,N-diacetoxymethyl-2-methoxy-5-acetamidoaniline, Prepare the raw material filter cake; then carry out cyanidation: add DMF to the cyanidation kettle, raise the temperature to 80°C, add ketone cyanide and sodium cyanide, raise the temperature to 100°C and keep it for 1 hour, cool down to 80-85°C, and put in The raw material filter cake is heated up to 100-110°C, kept warm for 3 hours, taking a sample to measure the reaction end point, cooling down to 25°C after passing the test, filtering and washing with water to obtain a cyanide filter cake; then removing ketones and cyanide: mix water, hydrochloric acid 1. The ferric chloride of ferric chloride beating is fully dissolved, and the cyanide filter cake is added,...

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Abstract

The invention discloses a disperse dye composition as well as a preparation method and an application thereof. The disperse dye composition comprises a component A consisting of one or more of compounds shown by formula (1), a component B consisting of one or more compounds shown by formula (2), forbidden aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, optional accessory and other unavoidable impurities, wherein the total content of the forbidden aromatic amine compound is below 10ppm, the total content of chlorinated phenol of each kind is below 0.5ppm, and the total content of chlorobenzene and chlorotoluene is below 1ppm. The environmental protection indexes of the disperse dye composition meet the requirements of Oeko-Tex Standard 100 (2016); and the properties such as washing fastness after dyeing are excellent. Moreover, by adopting the disperse dyeing composition disclosed by the invention for dyeing, 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): C09B67/22C09B67/38C09B67/36C09B29/085D06P1/18D06P3/54
CPCC09B29/08C09B29/0838C09B67/0034C09B67/0051C09B67/008D06P1/18D06P3/54
Inventor 丁兴成高立江阮光栋顾伟娣谢子平章月芳
Owner ZHEJIANG RUNTU INST
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