Yellow-light red reactive dye and preparation method thereof

A technology of reactive dyes and red dyes, applied in the field of yellow light red reactive dyes and its preparation

Inactive Publication Date: 2013-02-27
SHANGHAI SERUDAN DYESTUFF CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Among them, brilliant red M-8B is a kind of blue light red, which can form three primary colors with reactive golden yellow M-G and brilliant blue M-BR, and can be dyed with deep and strong color. A yellow light red variety with good application fastness and light adjustment

Method used

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  • Yellow-light red reactive dye and preparation method thereof
  • Yellow-light red reactive dye and preparation method thereof
  • Yellow-light red reactive dye and preparation method thereof

Examples

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Embodiment Construction

[0031] In order to make the technical means, creative features, goals and effects achieved by the present invention easy to understand, the present invention will be further elaborated below in combination with specifics.

[0032] A kind of yellow light red reactive dye, comprises red reactive dye, solution, and the structural formula I of red reactive dye is as follows:

[0033]

[0034] Among them, R=CH3, C2H5; Z=-SO2C2H4OSO3H,-SO2CH=CH2. Photocatalyst powder is also included, and the proportion of photocatalyst powder is 0.5-15%, preferably 2-10%. The photocatalyst powder can be at least one of nano-titanium dioxide, nano-zinc oxide, nano-zirconia, and nano-cadmium sulfide, preferably nano-titanium dioxide.

[0035] Step 1, the preparation of acylate

[0036] Add 170 parts of water into a 500ml beaker, add 34.1 parts of H acid under stirring, and mix with 4 parts of liquid caustic soda to dissolve them all (pH=6.5) to prepare a solution with a concentration of 15~20%, ...

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Abstract

The invention relates the technical field of dyes and especially relates to a yellow-light red reactive dye and a preparation method thereof. The yellow-light red reactive dye comprises a red reactive dye and a solution. The red reactive dye is shown in a structural formula I, wherein in the structural formula I, R represents CH3 or C2H5 and Z represents -SO2C2H4OSO3H or -SO2CH=CH2. The preparation method of the yellow-light red reactive dye comprises the following steps of acylation, preliminary condensation, diazotization, coupling, salting-out filtration and secondary condensation. The yellow-light red reactive dye has a brilliant yellow-light red color, has a printing fixation rate of 90%, and can effectively adjust colored light in dye color matching.

Description

technical field [0001] The invention relates to the technical field of dyes, in particular to a yellow light red reactive dye and a preparation method thereof. Background technique [0002] Reactive dyes, also known as reactive dyes. When dyeing, the dye reacts with the fiber, and a covalent bond is formed between the two to form a whole, which improves the washing and rubbing fastness of the dyed object. Due to the remarkable characteristics of bright color, complete chromatogram, excellent application performance, convenient use, strong applicability, and environmental protection, reactive dyes have a very broad market. Currently available reactive red dyes in the dye market include Brilliant Red K-2BP, Red M-3BE, Brilliant Red M-8B, Red K-2G, etc. Among them, brilliant red M-8B is a kind of blue light red, which can form three primary colors with reactive golden yellow M-G and brilliant blue M-BR, and can be dyed with deep and strong color. It is a yellow-light red var...

Claims

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Application Information

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IPC IPC(8): C09B62/51
CPCC09B62/085
Inventor 施卫斌郑文军刁正平
Owner SHANGHAI SERUDAN DYESTUFF CHEM
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