Disperse black azo dye mixture as well as preparation method and application thereof

A dye mixture, azo dye technology, applied in dyeing methods, organic dyes, textiles and paper making, etc., can solve the problems of serious white background staining, poor fastness, deep dyeing of disperse black dyes, insufficient lifting power, etc. Achieve the effect of good dispersion, excellent levelness and excellent sublimation fastness

Active Publication Date: 2014-07-16
上海贝通色彩科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Among them, disperse black azo dyes are widely used, but a single disperse black dye often has shortcomings such as deep dyeing, insufficient lifting power, and poor fastness, especially when it is used for fabric printing, it will cause serious staining on the white background

Method used

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  • Disperse black azo dye mixture as well as preparation method and application thereof
  • Disperse black azo dye mixture as well as preparation method and application thereof
  • Disperse black azo dye mixture as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] Based on the total mass of the disperse black azo dye mixture, each component is weighed according to the ratio of 20% component A, 45% component B, 23% component C and 12% dispersant, wherein component A is The compound shown in structural formula (Ia), component B is the compound shown in structural formula (IIa), component C is the compound shown in structural formula (III), and the dispersant is sodium methylnaphthalenesulfonate formaldehyde condensate It is compounded with sodium lignosulfonate at a mass ratio of 3:7. Mix the above components evenly and then add water for grinding. The slurry obtained by grinding is spray-dried. The spray-drying process conditions are: inlet temperature 120°C, The outlet temperature is 50°C, and after drying, a dye mixture with a particle size of 1 μm is obtained.

[0031]

[0032]

Embodiment 2

[0034] Compared with Example 1, this example differs in that component A is composed of compounds shown in structural formula (Ia) and structural formula (Ib) at a mass ratio of 2:3, and component B is composed of compounds such as structural formula Compounds represented by (IIa) and structural formula (IIb) are compounded at a mass ratio of 1:1, and the dispersant is formed by compounding sodium methylnaphthalene sulfonate formaldehyde condensate and sodium lignosulfonate at a mass ratio of 4:6. , and the rest are exactly the same, so I won’t repeat them here.

[0035]

[0036]

Embodiment 3

[0038] Compared with Example 1, this example is different in that: Component A is composed of compounds shown in structural formula (Ia), structural formula (Ib) and structural formula (Ic) in a mass ratio of 1:2:1 , Component B is composed of compounds shown in structural formula (IIa), structural formula (IIb) and structural formula (IIc) at a mass ratio of 3:2:7, and the dispersant is composed of sodium methylnaphthalenesulfonate formaldehyde condensate and Sodium lignosulfonate is compounded at a mass ratio of 3:5, and the rest are identical and will not be repeated here.

[0039]

[0040]

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Abstract

The invention discloses disperse black azo dye mixture. The disperse black azo dye mixture is composed of the following components by mass percent: 15-25% of component A composed of at least one compound shown in a structural formula (I), 40-50% of component B composed of at least one compound shown in a structural formula (II), 20-25% of component C composed of at least one compound shown in structural (III) and/or (IV) and 10-15% of dispersing agent, wherein the structural formulas are described in the specification. The invention also discloses a preparation method of the disperse black azo dye mixture. The preparation method of the disperse black azo dye mixture comprises that water is added after mixing, grinding and spray drying are carried out, so that the disperse black azo dye mixture is obtained. The preparation method of the disperse black azo dye mixture is simple in processing steps, strong in operability and applicable to industrial production.

Description

technical field [0001] The invention relates to a dye mixture, in particular to a disperse black azo dye mixture and its preparation method and application. Background technique [0002] Dispersed azo dyes (azo dyes, a class of organic compounds with both ends of the azo group connected to aryl groups) are the most widely used synthetic dyes in the printing and dyeing process of textiles and clothing. They are used for dyeing and dyeing of various natural and synthetic fibers. Printing, also used for coloring of paint, plastic, rubber, etc. This type of dye has the advantages of bright color, excellent fastness, and a wide variety of colors. [0003] Among them, disperse black azo dyes are widely used, but a single disperse black dye often has shortcomings such as deep dyeing, insufficient lifting power, and poor fastness, especially when it is used for fabric printing, it will cause serious staining on the white background . Contents of the invention [0004] The objec...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/36C09B67/38D06P1/18D06P3/54
Inventor 张彬肖卫华邱晓兰
Owner 上海贝通色彩科技有限公司
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