Composite active red dye

A technology of reactive red dye and dye monomer, applied in the field of reactive dyes, can solve the problems of difficult cleaning, poor fastness, thermal stability and alkali resistance, large dust, etc., to achieve high utilization rate, improve color fixing rate, increase The effect of solubility

Inactive Publication Date: 2010-01-27
ZHEJIANG JINGGUANG IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, the red dye commonly produced and used in the market—reactive red B-4BD is a color-blocking dye compound. Its fastness, heat stability and alkali resistance are poor, and it is dusty when used, and it is not easy to clean.

Method used

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  • Composite active red dye
  • Composite active red dye
  • Composite active red dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1～13

[0024] According to the data in Table 1-1, Table 1-2 and Table 2, after mixing dye monomer A, dye monomer B, co-solvent and water, grind and disperse with a sand mill, and then spray dry.

Embodiment 5

[0026] The preparation process of the dye monomer B in Example 5 is: add sodium nitrite to the para-ester in hydrochloric acid to carry out diazotization reaction, add J acid after the diazotization is completed, and perform a coupling under acidic conditions. After the completion of the dye intermediate product; beat the calculated amount of clixidin para-ester in the diazo pot, add hydrochloric acid to cool down, and then add sodium nitrite to carry out the diazotization reaction. After the diazotization reaction is completed, add the diazonium solution The secondary coupling is carried out in the dye intermediate, and the desired dye monomer B is obtained after the secondary coupling is completed.

[0027] Table 1-1

[0028]

[0029]

[0030] Table 1-2

[0031]

[0032] Table 2

[0033]

[0034]

[0035] The reactive dyes prepared in the above examples were dyed with standard reactive dyes to obtain their corresponding performance data, as shown in Table 3....

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PUM

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Abstract

The invention discloses a composite active red dye which comprises the following components in percentage by weight: 60-90 percent of dye monomer A shown as the formula (1), 10-40 percent of dye monomer B shown as the formula (2) and 0-10 percent of dispersing agent MF and/or diffusant NNO. The composite active red dye can obtain higher dyeing level and bright colors when being used for dyeing cotton, hemp and viscose glue, and the friction resistant fastness and the perspiration and soaping resistant fastness can meet the standard requirement.

Description

technical field [0001] The invention relates to a reactive dye, in particular to a composite reactive red dye, which is suitable for dyeing cotton, linen, viscose fiber and the like. Background technique [0002] At present, the red dye commonly produced and used in the market—reactive red B-4BD is a kind of color-blocking dye compound. Its fastness, heat stability and alkali resistance are poor, and it is dusty when used, making it difficult to clean. [0003] With the improvement of living standards, people's requirements for textile products are getting higher and higher, so that the requirements for the performance of reactive dyes used in textile dyeing are becoming increasingly stringent. Reactive dyes must not only have excellent color fastness and dyeing performance, but also meet environmental protection requirements. Contents of the invention [0004] The invention provides a composite active red dye with high color fixing rate and high utilization rate, and is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/24
Inventor 王国林张薇
Owner ZHEJIANG JINGGUANG IND
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