Disperse dye composition and preparation method and use thereof

A technology for disperse dyes and compositions, applied in dyeing methods, organic dyes, textiles and papermaking, etc., can solve the problems of different content of harmful substances, unsatisfactory environmental protection results, loss of printing and dyeing plants, etc., achieving convenient use and saving environmental protection treatment costs. Effect

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 use thereof
  • Disperse dye composition and preparation method and use thereof
  • Disperse dye composition and preparation method and use thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example 1

[0044] 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 o-chloro-p-nitro for about 3 hours Aniline, after adding, was incubated for 2.5 hours to obtain the diazo component, which was then used;

[0045] 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;

[0046] c) After the diazo has been injected, start the coupling kettle to stir, add sulfamic acid, add Pingping, drop the coupling component N-ethyl-N-cyanoethylaniline, drop the time for 4 hours, control the reaction temperature 5-10 °C, after dropping, keep it warm for 4 hours, slowly raise the temperature to 80 °C for...

preparation example 2

[0048] a) Add water and hydrochloric acid to the diazo kettle, turn on the diazo kettle to stir, add 2-chloro-4-nitroaniline, stir and beat for 2 hours, add ice to cool down to 0°C, add 30% nitrous acid for about 1 hour Sodium solution, the temperature is controlled not to exceed 5°C, after the addition is completed, the heat preservation reaction is carried out for 2 hours, and the diazo component is obtained, which is ready for use;

[0049] 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 filtrate into the coupling kettle;

[0050] c) After the filtrate is poured in, start the coupling tank to stir, add sulfamic acid, add flatly, add the coupling component N-ethyl-N-cyanoethylaniline dropwise, add dropwise for 4 hours, and control the reaction temperature at 5-10°C After dro...

preparation example 3-5

[0052] Preparations 3-5 adopted the method of Preparation 1, except that the coupling component N-ethyl-N-cyanoethylaniline in Preparation 1 was replaced by the coupling components shown in Table 1, respectively.

[0053] Table 1

[0054]

[0055]

[0056] The components A contained in the product (I-2) to product (I-4) obtained in sequence from Preparation Example 3-5 are compounds of formula (1-2) to formula (1-4), respectively.

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Abstract

A disperse dye composition and a preparation method and use thereof are disclosed, the disperse dye composition comprises a component A, a banned aromatic amine compound, chlorinated phenol, chlorobenzene, chlorotoluene, optional accessories, and other inescapable impurities, the component A comprises one or more compounds of compounds shown as formula (1), the total content of the prohibited aromatic amine compound is 10ppm or below, the total content of various types of the chlorinated phenol is respectively 0.5ppm or below, and the total content of the chlorobenzene and the chlorotoluene is 1ppm or below. All environmentally-friendly indicators of the disperse dye composition meet the requirements of Oeko-Tex Standard 100 (2016). In addition, after a fabric is dyed with the disperse dye composition, and the dyed fabric meets the baby level requirements of the 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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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38C09B67/36D06P1/18D06P1/19D06P3/54D06P3/85
CPCC09B67/0051C09B67/0079C09B67/008D06P1/18D06P1/19D06P3/004D06P3/54D06P3/82
Inventor 赵国生丁兴成阮光栋陈宝兴顾伟娣谢子平
Owner ZHEJIANG RUNTU INST
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