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A kind of disperse dye monomer compound and its preparation method and application

A technology of disperse dyes and compounds, which is applied in the field of non-ionic dyes, can solve the problems of lack of wide applicability, and achieve the effects of high white fastness, good reproducibility, and simple preparation process

Active Publication Date: 2018-02-16
ZHEJIANG WANFENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, there are still defects in other properties, such as perspiration or white fastness, and lack of wide applicability

Method used

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  • A kind of disperse dye monomer compound and its preparation method and application
  • A kind of disperse dye monomer compound and its preparation method and application
  • A kind of disperse dye monomer compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The preparation of the esterified product shown in formula (II):

[0026]

[0027] Mix 37g of aniline, 28.8g of acrylic acid, and 100g of water, stir at 90°C for 20 hours, lower the temperature, add 200g of methanol, stir at 0°C for 12 hours, and filter to obtain the compound represented by formula (V).

[0028] Mix 16g of the compound represented by formula (V), 150g of water, 11g of soda ash, and 20g of benzyl chloride, stir, add 2g of potassium iodide at 80°C, react for 12 hours, cool down, add 100g of methanol, stir at 0°C for 12 hours, filter, The compound represented by formula (IV) is obtained.

[0029] Mix 25.5g of the compound represented by formula (IV) with 100g of DMF, 11g of soda ash, and 14g of bromoacetone, heat up to 60°C, add 1g of potassium iodide, stir and react for 12 hours, cool down to 40°C, add 200g of water, filter to obtain the formula ( II) The esterified product shown.

[0030] The preparation of diazide (III):

[0031]

[0032] Mix 4...

Embodiment 2

[0037] Mix 40 g of the compound of formula (I) and 60 g of MF with water, grind and disperse with a grinder, and then spray dry to obtain a blue dye.

Embodiment 3

[0039] Take 2.0g of the disperse dyes prepared in Example 2, and use water to make disperse dye suspensions with a concentration of 2g / L, mix 2ml with 8ml of water, adjust the pH of the dyeing bath to 5 with acetic acid, and then heat up to 60°C , and at the same time put 2g of the fiber materials shown in the table below for high-temperature and high-pressure dyeing, heat up to 130°C within 30 minutes, keep warm for 30 minutes, cool down, and take samples. Check the infection rate. And test the color fastness to rubbing, color fastness to washing, spelling white fastness and color fastness to sublimation of embodiment 2 respectively according to the relevant provisions of the national standard.

[0040] As shown in the following table, the disperse dyes prepared by using the compound of the present invention are significantly better than the prior art in washing fastness, rubbing fastness and spelling white fastness.

[0041] Such as figure 1 As shown, the dye of the prese...

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Abstract

The invention relates to a disperse dye monomeric compound as well as a preparation method and application of the disperse dye monomeric compound. A structure of the disperse dye monomeric compound is shown in a formula I (which is shown in the description). The preparation method utilizes diazotization and coupling reaction to prepare the disperse dye monomeric compound. The disperse dye monomeric compound provided by the invention is independently applied to preparation of disperse dye or is combined with other dye monomers to form a dye composition to prepare the disperse dye. The preparation process is simple; the cost is low; the prepared dye has the advantages of good reproducibility, washing resistance, friction resistance and sublimating resistance, and in particular has the characteristic of high whiteness pitching fastness.

Description

technical field [0001] The invention belongs to the field of nonionic dyes, in particular to a disperse dye monomer compound and its preparation method and application. Background technique [0002] Disperse dyes are a class of non-ionic dyes with low water solubility. Disperse dyes were first used in the dyeing of acetate fibers, known as acetate dyes. With the development of synthetic fibers, nylon and polyester have appeared one after another, especially polyester, because of its high alignment, less fiber voids, and strong hydrophobicity. The fiber needs to be swollen under high temperature and hot melting, so that the dye can enter the fiber and be dyed. With the development of synthetic fibers, people have also put forward new requirements for dyes. The previous dyes have application defects, such as low dyeing rate and unacceptable fastness. In order to improve the fastness of dyes such as washing, various new dyes have been developed. [0003] Patents WO9520014, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B29/09D06P1/18D06P3/42D06P3/60D06P3/26D06P3/54D06P3/14D06P3/72
CPCC09B29/08D06P1/18D06P3/143D06P3/26D06P3/42D06P3/54D06P3/6041D06P3/72
Inventor 俞杏英姚晨华
Owner ZHEJIANG WANFENG CHEM
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