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Beta-ketonic ester and benzyl contained high-sublimation-fastness disperse dye compound, and preparation and application thereof

A technology of disperse dyes and sublimation fastness, applied in the direction of azo dyes, organic dyes, monoazo dyes, etc., can solve the problem of low affinity of dyeing matrix, low sublimation fastness of dyed fabrics, and few dyes with high sublimation fastness, etc. problems, to achieve good application prospects, excellent fastness, full color effect

Inactive Publication Date: 2015-10-28
俞杏英 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Many commercial disperse dyes have low molecular weight, strong molecular hydrophobicity, and low affinity with the dyeing matrix, resulting in low sublimation fastness of dyed fabrics after printing and dyeing.
At present, there are very few dyes with high sublimation fastness, which cannot meet the market's requirements for high sublimation fastness disperse dyes

Method used

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  • Beta-ketonic ester and benzyl contained high-sublimation-fastness disperse dye compound, and preparation and application thereof
  • Beta-ketonic ester and benzyl contained high-sublimation-fastness disperse dye compound, and preparation and application thereof
  • Beta-ketonic ester and benzyl contained high-sublimation-fastness disperse dye compound, and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] Synthesis and preparation of disperse dye compounds with the following molecular structure:

[0044]

[0045] (1) Preparation of diazonium salt:

[0046] Add 20g of 98% concentrated sulfuric acid into a 100ml three-necked flask, slowly add 0.01mol of 2-chloro-6-bromo-p-nitroaniline under stirring, control the temperature at 20°C, slowly add 2g of water dropwise therein, and then cool down to 10 Add 0.01mol of nitrosyl sulfuric acid below ℃. Take another three-necked flask, add 20 g of water, slowly add 5 g of 98% concentrated sulfuric acid, cool down to 0° C. in an ice bath, then slowly add the mixture in the aforementioned three-necked flask dropwise, and keep the temperature at 0° C. for 2 hours. Obtain the diazo component.

[0047] (2) Preparation of coupling components: In a 100ml three-neck flask equipped with a reflux condenser, water separator and stirrer, add 0.01mol N-benzyl-N-propionylaniline, 0.01mol chloroacetone and 100ml Solvent and adding zeolite, h...

Embodiment 2

[0055] Synthesis and preparation of disperse dye compounds with the following molecular structure:

[0056]

[0057] (1) Preparation of diazonium salt:

[0058] Add 20g of 98% concentrated sulfuric acid into a 100ml three-neck flask, slowly add 0.01mol of 2,6-dichloro-p-nitroaniline under stirring, control the temperature at 20°C, slowly add 2g of water dropwise, and then cool down to 10°C Next, 0.01 mol of nitrosyl sulfuric acid was added. Take another three-necked flask, add 20 g of water, slowly add 5 g of 98% concentrated sulfuric acid, cool down to 0° C. in an ice bath, then slowly add the mixture in the aforementioned three-necked flask dropwise, and keep the temperature at 0° C. for 2 hours. Obtain the diazo component.

[0059] (2) Preparation of coupling components: In a 100ml three-neck flask equipped with a reflux condenser, water separator and stirrer, add 0.01mol N-benzyl-N-propionylaniline, 0.01mol chloroacetone and 100ml Solvent and adding zeolite, heated a...

Embodiment 3

[0064] Synthesis and preparation of disperse dye compounds with the following molecular structure:

[0065]

[0066] (1) Preparation of diazonium salt:

[0067] Add 20g of 98% concentrated sulfuric acid into a 100ml three-neck flask, slowly add 0.01mol of 2,6-dibromo-p-nitroaniline under stirring, control the temperature at 20°C, slowly add 2g of water dropwise, and then cool down to 10°C Next, 0.01 mol of nitrosyl sulfuric acid was added. Take another three-necked flask, add 20 g of water, slowly add 5 g of 98% concentrated sulfuric acid, cool down to 0° C. in an ice bath, then slowly add the mixture in the aforementioned three-necked flask dropwise, and keep the temperature at 0° C. for 2 hours. Obtain the diazo component.

[0068] (2) Preparation of coupling components: In a 100ml three-neck flask equipped with a reflux condenser, water separator and stirrer, add 0.01mol N-benzyl-N-propionylaniline, 0.01mol chloroacetone and 100ml Solvent and adding zeolite, heated an...

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Abstract

The invention relates to a beta-ketonic ester and benzyl structure contained high-sublimation-fastness disperse dye compound, and preparation and application thereof. The compound has a general structural formula as described in the specification. The preparation method comprises the following steps: (1) diazonium salt preparation; (2) coupling component preparation; and (3) coupling reaction. The dye provided by the invention has the following advantages: sythetic process is simple; polyester and cellulose acetate fibers are dyed, so dyed fabrics have rich hue; various fastnesses are excellent, and specifically, sublimation fastness can reach to level 5; and good application prospect is obtained.

Description

technical field [0001] The invention belongs to the field of disperse dye compounds, in particular to a disperse dye compound with high sublimation fastness containing β-carbonyl ester and benzyl structure and its preparation and application. Background technique [0002] Disperse dyes are the most important dyes for polyester fiber dyeing, and the sublimation fastness is one of the important indicators for evaluating the dyeing quality of disperse dyes. Many commercialized disperse dyes generally have small molecular weight, strong molecular hydrophobicity, and low affinity with the dyeing matrix, resulting in low sublimation fastness of dyed fabrics after printing and dyeing. At present, there are very few dyes with high sublimation fastness, which cannot meet the market's requirements for high sublimation fastness disperse dyes. Therefore, there is an urgent need to research and develop new varieties of disperse dyes with high sublimation fastness on the market. Conten...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B29/08C09B67/38C07C245/08D06P1/18D06P3/54
Inventor 俞杏英俞啸天
Owner 俞杏英
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