A kind of high-dye-shifting red disperse dye monomer compound and its preparation method and application

A technology for disperse dyes and compounds, which is applied in the field of non-ionic dyes, can solve the problems of ineffective printing and dyeing effects and meet requirements, and achieve the effects of low cost, good reproducibility and simple preparation process

Active Publication Date: 2018-03-30
ZHEJIANG WANFENG CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the printing effects produced by these known dyes are still not satisfactory in all cases

Method used

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  • A kind of high-dye-shifting red disperse dye monomer compound and its preparation method and application
  • A kind of high-dye-shifting red disperse dye monomer compound and its preparation method and application
  • A kind of high-dye-shifting red disperse dye monomer compound and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] The reaction equation is as follows:

[0026]

[0027] (1) Mix 19 g of the compound of formula (V), 20.4 ml of hydrogen peroxide, 11.4 ml of hydrobromic acid solution and 50 ml of water, and stir at room temperature for 8 hours to obtain the compound shown in formula (IV).

[0028] (2) Mix 10g of the compound of formula (IV), 10g of nitrosyl sulfuric acid and 30g of sulfuric acid, heat up to 30°C and stir for 2 hours. After the reaction is complete, add sulfamic acid to obtain the compound shown in formula (III). Nitriding liquid.

[0029] (3) Add 200g of ice to the above-mentioned diazotization solution, stir, slowly add 11g of the compound of formula (II) below 5°C, stir and react for 2 hours below 5°C, filter, wash with water, and dry to obtain 17.8g of the compound of formula (I) ) compound shown. Melting point: 160°C. H1-NMR (deuterated DMSO) spectrum see figure 1 .

Embodiment 2

[0031] 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 red dye.

Embodiment 3

[0033] 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. The color fastness to rubbing, color fastness to washing, light fastness and migration performance of Example 2 were tested respectively according to the relevant provisions of the national standard.

[0034] As shown in the following table, the disperse dyes prepared by the compounds of the present invention are significantly better than the prior art in color fastness to rubbing, color fastness to washing, light fastness and migration performance.

[0035] Table 1

[0036]

[0037] Table 2 ...

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Abstract

The invention relates to a monomeric compound of a red disperse dye with high migration property as well as a preparation method and application thereof. A structure of the compound is shown in a formula I in the specification. The compound is prepared by adopting diazotization and coupling reaction. The compound is individually applied to preparation of disperse dyes or forms dye compositions with other dye monomers to prepare disperse dyes. The preparation process is simple and is low in cost. The dye has the advantages of good reproducibility and resistance to washing, friction and sunlight and has good migration property.

Description

technical field [0001] The invention belongs to the field of non-ionic dyes, in particular to a high-dye-migrating red 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. [0...

Claims

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Application Information

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Patent Type & AuthorityPatents(China)
IPC IPC(8): C09B29/09C09B67/38D06P1/18
CPCC09B29/0836C09B67/008D06P1/18
Inventor俞杏英姚晨华
OwnerZHEJIANG WANFENG CHEM