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Disperse dye monomeric compound and disperse dye

A technology of disperse dyes and dye monomers, applied in azo dyes, organic dyes, monoazo dyes, etc., to achieve the effect of high color yield, strong dye depth and good reproducibility

Active Publication Date: 2012-12-12
ZHEJIANG LONGSHENG GROUP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although the existing documents CN101522816 and GB909843 provide a new dye compound, which has good performance in washing fastness and sublimation fastness, there is still room for further improvement

Method used

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  • Disperse dye monomeric compound and disperse dye
  • Disperse dye monomeric compound and disperse dye
  • Disperse dye monomeric compound and disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Preparation of the coupling component represented by formula (Ⅲ-1) (N,N-dimethylcarbonylmethoxycarbonylethylaniline):

[0032] Put 18.6g of aniline, 72g of acrylic acid and 100g of water into a 500ml container, raise the temperature to 90°C, keep it warm for 10h, add 100g of methanol while cooling down, keep stirring at 0~5°C for 12h; then crystallize and filter, wash with 50g of methanol, and dry. A dicarboxylic acid product is obtained. Put 68.5g of bromoacetone, 11.6g of soda ash and 23.7g (100%) of the dicarboxylic acid product prepared above into a 500ml container, and raise the temperature to 80°C; then put in 5g of potassium iodide, and keep it warm for 12 hours; then cool down to 40°C, Add 100g of water, crystallize and filter.

[0033]

[0034]

[0035] Diazotization reaction: Put 25g of water into a 500ml container, cool down and add 87g of concentrated sulfuric acid, and continue to cool down to 10°C; add 13.8g of p-nitroaniline, and stir at 20~30°C fo...

Embodiment 2

[0039] Preparation of the coupling component represented by formula (Ⅲ-2) (N,N-diphenylcarbonylmethoxycarbonylethylaniline):

[0040] Put 18.6g of aniline, 72g of acrylic acid and 100g of water into a 500ml container, raise the temperature to 90°C, keep it warm for 10h, add 100g of methanol while cooling down, keep stirring at 0~5°C for 12h; then crystallize and filter, wash with 50g of methanol, and dry. A dicarboxylic acid product is obtained. Put 100.4g of 2-bromoacetophenone, 11.6g of soda ash and 23.7g (percentage) of the above-prepared dicarboxylic acid product into a 500ml container, raise the temperature to 80°C, add 5g of potassium iodide, and keep the temperature for 12h; then cool down To 40°C, add 200g of water, crystallize and filter.

[0041]

[0042]Diazotization reaction: Put 25g of water into a 500ml container, cool down and add 87g of concentrated sulfuric acid, and continue to cool down to 10°C; add 13.8g of p-nitroaniline, and stir at 20~30°C for 4 hour...

Embodiment 3

[0046] Diazotization reaction: Add 80g of concentrated sulfuric acid and 35g of 40% nitrosyl sulfuric acid to a 500ml container, cool down to 0~5°C, and add 20.7g of 2,6-dichloro-p-nitroaniline within 3~4h, add After the heat preservation for 3 hours, the diazo solution (for standby) was prepared.

[0047] Coupling reaction: put 1000g of water, 20g of concentrated sulfuric acid and 34.9g (percentage) of the coupling component of formula (Ⅲ-1) into a 2L container, beat for half an hour; distill the diazo solution prepared above within 1-2h Add it dropwise into the beating liquid of the coupling component, control the temperature at 0~5°C and react for 5~6h; after the end point is reached (detect the reaction with the percolation ring test), raise the temperature of the material to 75°C, and keep it warm for 3h; finally filter and wash until Neutral, the dye filter cake shown in formula (Ⅰ-3) can be prepared, λ max [DMF]=433nm, the dyed fabric is brown tone.

[0048]

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PUM

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Abstract

The invention provide a disperse dye monomeric compound which has a structure as represented by formula (I) in the specification. A disperse dye preparation prepared from the disperse dye monomeric compound provided by the invention can be used for dyeing materials which have been made into fine particles and are in a state of liquid or emulsifiable paste or for powdery and granular materials which have been dried by using a spray-drying process; when the disperse dye preparation prepared in the invention is used for dyeing a hydrophobic fibrous material, the advantages of a wide scope of applicable pH values, good reproducibility, a strong deep dyeing property, high color yield, good uniformity, and in particular, excellent color fastness to washing and ironing are obtained.

Description

(1) Technical field [0001] The invention relates to a disperse dye monomer compound suitable for dyeing hydrophobic fiber materials and a disperse dye prepared from it. (2) Background technology [0002] In recent years, with the increase in the demand and consumption of polyester fabrics, disperse dyes have become one of the most active dyes in the world dye market. The fastness of polyester fabrics dyed with disperse dyes is an important indicator of its quality. On the one hand, products with poor color fastness will fade during wearing, which will affect other clothes worn on the body, or contaminate other clothes when washed with other clothes, affecting the appearance; on the other hand, there is a direct relationship between good and bad color fastness To the health and safety of the human body, the dye molecules on products with poor color fastness may be absorbed by the human body through the skin and endanger the skin and even harm the health of the body. [0003]...

Claims

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Application Information

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IPC IPC(8): C09B29/085C09B67/38C09B67/22D06P1/19D06P3/54
Inventor 祝培明蒋应海余青结郭源治张海斌张友珍何耀耀周俊峰
Owner ZHEJIANG LONGSHENG GROUP
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