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Dye compound and dye composition and application thereof

A technology for dye compounds and dye compositions, applied in the field of dye compounds and dye compositions, can solve the problems of being unfavorable for the treatment of dye wastewater, harmful substances are not environmentally friendly, low sublimation fastness, etc., and achieve bright color and high washing fastness. , the effect of high sublimation fastness and washing fastness

Active Publication Date: 2018-11-13
PENGLAI JIAXIN DYES & CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, because p-aminoazobenzene, the intermediate for the preparation of C.I. Disperse Yellow 23 dye, is a carcinogen, C.I. Disperse Yellow 23 was designated as a banned dye and withdrew from the stage of history. Therefore, there are limitations in the application
However, C.I. Disperse Yellow 211 is bright and bright yellow, with low color yield, poor lifting power, low dyeing uptake rate, and deep color of dyeing residue, which is not conducive to the treatment of dye wastewater, and its sublimation fastness is low, and its application limitations are also very limited. Big
[0004] Other yellow disperse dyes in the prior art, in addition to having the above-mentioned problems, also exist the problems that are not environmentally friendly such as producing harmful substances in the preparation process

Method used

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  • Dye compound and dye composition and application thereof
  • Dye compound and dye composition and application thereof
  • Dye compound and dye composition and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] The structural formula of the dye compound described in the present embodiment is as follows:

[0033]

[0034] The preparation method of the dye compound, the steps are as follows:

[0035] (1) Diazotization reaction

[0036] Add 200mL of water and 42mL of hydrochloric acid with a mass fraction of 30% into the reaction vessel, add 27.4g of 3-amino-2',4'-dinitrodiphenylamine under stirring conditions, beat for 2 hours, add an appropriate amount of crushed ice, and 24g of sodium nitrite aqueous solution with a mass fraction of 30% was added dropwise at 0-5°C, and reacted until the diazo component disappeared, and the potassium iodide test paper was kept slightly blue, and the diazotization reaction was completed.

[0037] (2) Coupling reaction

[0038] In the reaction vessel, add 200mL of water, 18g of sodium carbonate and 10.8g of m-cresol in turn, stir until dissolved, then add an appropriate amount of crushed ice to cool down, slowly add the above diazo liquid, a...

Embodiment 2

[0040] The structural formula of the dye compound described in the present embodiment is as follows:

[0041]

[0042] The preparation method of the dye compound, the steps are as follows:

[0043] (1) Diazotization reaction

[0044] The diazotization reaction refers to the reaction process in Example 1.

[0045] (2) Coupling reaction

[0046] In the reaction vessel, 300mL of water and 10g of aqueous sodium hydroxide solution with a mass fraction of 30% were added successively, and 17.8g of Stir until all dissolve, then add 17g of sodium carbonate, stir until fully dissolved, add an appropriate amount of crushed ice to cool down, slowly add the diazo liquid obtained by the reaction in step (1), and simultaneously adjust the pH to 5-6 with liquid caustic soda. React at 0-5°C until the diazonium salt disappears, collect the solid by filtration, wash with water until neutral, and dry to obtain 43.2 g of the dye compound. The polyester fabric dyed by the dye compound is br...

Embodiment 3

[0048] The structural formula of the dye compound described in the present embodiment is as follows:

[0049]

[0050] The preparation method of the dye compound, the steps are as follows:

[0051] (1) Diazotization reaction

[0052] The diazotization reaction refers to the reaction process in Example 1.

[0053] (2) Coupling reaction

[0054] In the reaction vessel, add 250mL of water and 10g of aqueous sodium hydroxide solution with a mass fraction of 30% in sequence, and add 17.5g of Stir until it is completely dissolved, then add 10g of sodium carbonate, stir until it is completely dissolved, add an appropriate amount of crushed ice to cool down, slowly add the diazo liquid obtained by the reaction in step (1), add liquid caustic soda to adjust the pH to 7.5-8, at 0 React at -5°C until the diazonium salt disappears, collect the solid by filtration, wash with water until neutral, and dry to obtain 42 g of the dye compound. The polyester fabric dyed by the dye compou...

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PUM

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Abstract

The invention relates to the technical field of dyes, in particular to a dye compound and a dye composition and application thereof. The structural formula of the dye compound is as shown in the specification, wherein the structural formula of X is any of A, B and C. The dye compound is a medium yellow to green yellow dye compound, is bright in color, high in fastness and good in dyeing property,and is particularly high in sublimation fastness and washing fastness; and moreover, the dye compound does not contain forbidden arylamines, is an environment-friendly dye, and has wide application prospects.

Description

technical field [0001] The invention relates to the technical field of dyes, in particular to a dye compound and its dye composition and application. Background technique [0002] It is known that there are many varieties of disperse dye yellows, among which the representative disperse yellows are widely used at home and abroad: C.I. Disperse Yellow 23 and C.I. Disperse Yellow 211. Among them, C.I. Disperse Yellow 23 is one of the three primary colors of E-type disperse dyes and is used in a large amount. [0003] However, because p-aminoazobenzene, the intermediate for the preparation of C.I. Disperse Yellow 23 dye, is a carcinogen, C.I. Disperse Yellow 23 was designated as a banned dye and withdrew from the stage of history. Therefore, it also has limitations in application. However, C.I. Disperse Yellow 211 is bright and bright yellow, with low color yield, poor lifting power, low dyeing uptake rate, and deep color of dyeing residue, which is not conducive to the treatm...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/01C09B29/12C09B29/42C09B29/44C09B67/22D06P1/18D06P1/19D06P3/54D06P3/26D06P3/42
CPCC09B29/0003C09B29/12C09B29/363C09B67/0051D06P1/18D06P1/19D06P3/26D06P3/42D06P3/54
Inventor 王喆王淑香杨军海
Owner PENGLAI JIAXIN DYES & CHEM
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