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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 affecting the ecological environment, failing to meet environmental protection requirements, loss of printing and dyeing plants, etc., achieving convenient use and saving environmental protection processing 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

[0002] Although environmentally friendly dyes have restrictions on the content of harmful substances to the human body, most of them only control the environmental protection of textile fabrics, that is, to measure the dyes on textile fabrics and control the content of harmful substances. The high content of harmful substances in the products has caused the sewage and sludge of the printing and dyeing factory to seriously exceed the environmental protection requirements and affect the ecological environment
At the same time, due to the different textile printing and dyeing processes, or the different amounts of dyes, the content of harmful substances in textiles is also different. In this way, printing and dyeing wastewater, sludge and some textile fabrics that do not meet environmental protection requirements cause serious damage to downstream printing and dyeing factories. big loss

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

[0043] (1) Add sulfuric acid to the diazo kettle, start stirring, then slowly add nitrosyl sulfuric acid, control the temperature not to exceed 40°C, after adding, cool down to 23°C, slowly and evenly add 2,6-dichloro-4- After adding nitroaniline, heat it at 25-30°C for 4 hours to obtain diazo solution, add water and ice to the diazo dilution kettle, cool down to below 5°C, press into the diazo solution to dilute, and control the dilution temperature. After the pressure is over 5°C, add diatomaceous earth, stir for 30 minutes, filter, and pour the filtrate into the coupling kettle.

[0044] (2) Turn on the coupling tank and stir, add ice, urea and flat, stir for 15 minutes, add isooctyl alcohol, control the temperature below 10°C, add the coupling component N-methyl-N-benzylaniline dropwise, add dropwise After adding for 4 hours, control the reaction temperature at 10-15°C, keep the reaction for 2 hours after dropping, slowly raise the temperature to 60°C for crystallization, ...

preparation example 2

[0046] (1) Add sulfuric acid to the diazo kettle, start stirring, then slowly add nitrosyl sulfuric acid, control the temperature not to exceed 40°C, after adding, cool down to 25°C, slowly and evenly add 2,6-dichloro-4- After adding nitroaniline, heat it at 25-30°C for 8 hours to obtain diazo solution, add water and ice to the diazo dilution kettle, cool down to below 5°C, press into the diazo solution to dilute, and control the dilution temperature. When the pressure is over 5°C, add diatomaceous earth, stir for 60 minutes, filter, and pour the filtrate into the coupling kettle.

[0047] (2) Turn on the coupling tank and stir, add ice, urea and flat, stir for 60 minutes, add isooctyl alcohol, control the temperature below 10°C, add the coupling component N-cyanoethyl-N-acetoxyethylaniline dropwise , dropwise for 5 hours, after the addition, control the reaction temperature at 10-15°C, keep the reaction for 3 hours after dropping, slowly raise the temperature to 80°C for crys...

preparation example 3-6

[0049] Adopt the method for Preparation Example 1, the difference is that (1) the coupling component N-methyl-N-benzylaniline in Preparation Example 1 is replaced by the coupling component shown in Table 1; (2) In Preparation Examples 3 and 4, the diatomite in Preparation Example 1 was replaced by activated carbon and bentonite, respectively.

[0050] Table 1

[0051]

[0052] The components A contained in the products (I-3)-(I-6) obtained in sequence from Preparation Examples 3-6 are the compounds of formulas (1-3)-(1-6) in sequence.

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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 formed by one or more of compounds 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, not only are various environment-protective indexes conform to the requirements of Oeko-Tex-Standard 100(2016), but also the total content of the forbidden aromatic amine compound in a dye composition chemical product for dyeing 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. The sewage after the dyeing also can meet the environmental protection requirement; and meanwhile, the use is more convenient and secure. (Shown in 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 and printing of polyester and its blended fabrics. Background technique [0002] Although environmentally friendly dyes have restrictions on the content of harmful substances to the human body, most of them only control the environmental protection of textile fabrics, that is, to measure the dyes on textile fabrics and control the content of harmful substances. Therefore, there are still dyes used in dyeing. The high content of harmful substances in the products has caused the sewage and sludge of the printing and dyeing factory to seriously exceed the environmental protection requirements and affect the ecological environment. At the same time, due to the different textile printing and dyeing processes, or the different amounts of dyes, the content of harmful substances in textiles is also different. In t...

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 陈宝兴景雪苹顾伟娣丁兴成谢子平袁芝琴
Owner ZHEJIANG RUNTU INST
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