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Printing disperse black azo dye mixture and preparation method thereof

An azo dye, disperse black technology, applied in dyeing, organic dyes, textiles and papermaking, etc., can solve the problems of low fullness and layering, poor sublimation fastness, large color difference, etc., to achieve bright and full color. The effect of strong degree and layering, and reasonable formula

Active Publication Date: 2014-07-23
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

[0002] As the printing process matures, the market urgently needs high-fast disperse dyes for polyester fiber direct printing to meet the growing needs of customers. Direct printing products have become a high-value product. However, there is currently no demand for this product on the market. There are some problems in the disperse dyes, for example, the color difference is too large under various light sources, and the light jumping phenomenon occurs differently, and the single-component dyes often have disadvantages such as light fastness, washing, perspiration, and poor sublimation fastness, especially for use in When printing, the product's unique fullness and layering are not strong

Method used

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  • Printing disperse black azo dye mixture and preparation method thereof
  • Printing disperse black azo dye mixture and preparation method thereof
  • Printing disperse black azo dye mixture and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Based on the total mass of the printed disperse black azo dye mixture, weigh each component according to the ratio of 30% component A, 35% component B, 15% component C, 10% component D, and 10% dispersant , wherein component A is a compound shown in structural formula (Ia), component B is a compound shown in structural formula (II), component C is a compound shown in structural formula (IIIa), and component D is a compound shown in structural formula (IVa). The compound shown, the dispersant is compounded by sodium methylnaphthalenesulfonate formaldehyde condensate and sodium lignosulfonate in a mass ratio of 3:7, the above-mentioned components are mixed evenly, and water is added to grind, and the slurry obtained by grinding Carry out spray drying, the process condition of spray drying is: inlet temperature 120 ℃, outlet temperature 50 ℃, after drying, a dye mixture with a particle size of 1 μm is obtained.

[0032]

Embodiment 2

[0034] Compared with Example 1, this example differs in that component A is compounded by the compounds shown in structural formula (Ia) and structural formula (Ib) in a mass ratio of 2:3, and component C is composed of structural formula ( Compounds shown in IIIa) and structural formula (IIIb) are compounded at a mass ratio of 1:1, component D is compounded at a mass ratio of 1:3 from compounds shown in structural formula (IVa) and structural formula (IVb), The dispersant is composed of sodium methylnaphthalenesulfonate formaldehyde condensate and sodium lignosulfonate at a mass ratio of 4:6, and the rest are identical and will not be repeated here.

[0035]

Embodiment 3

[0037] Compared with Example 1, the present embodiment is different in that: component C is the compound shown in structural formula (IIIb), and component D is by mass ratio 2 by the compound shown in structural formula (IVa) and structural formula (IVb): 3 compounded, the dispersant is composed of sodium methylnaphthalene sulfonate formaldehyde condensate and sodium lignosulfonate at a mass ratio of 3:5, the rest are identical and will not be repeated here.

[0038]

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Abstract

The invention discloses a printing disperse black azo dye mixture. The printing disperse black azo dye mixture comprises a component A formed by at least one compound as shown in a structural formula (I), a compound B as shown in a structural formula (II), a component C formed by at least one compound as shown in a structural formula (III), a component D formed by at least one compound as shown in a structural formula (IV) and a dispersant, wherein in the mixture, the weight percentage of the component A is 30-35%, the weight percentage of the component B is 30-35%, the weight percentage of the component C is 10-35%, the weight percentage of the component D is 5-10%, and the weight percentage of the dispersant is 10-15%. The structural formulae (I), (II), (III) and (IV) are as shown in the specification. The invention also discloses a preparation method of the printing disperse black azo dye mixture. The preparation method comprises the following steps: mixing materials, adding water, grinding and carrying out spray drying so as to obtain the printing disperse black azo dye mixture. The preparation method is simple in processing steps, strong in operability and suitable for industrial production.

Description

technical field [0001] The invention relates to a dye mixture, in particular to a printing disperse black azo dye mixture and a preparation method thereof. Background technique [0002] As the printing process matures, the market urgently needs high-fast disperse dye products for direct printing of polyester fibers to meet the growing needs of customers. Direct printing products have become a high-value product. However, there is currently no demand for this product on the market. There are some problems in the disperse dyes, for example, the color difference is too large under various light sources, and the light jumping phenomenon occurs differently, and the single-component dyes often have shortcomings such as light fastness, washing, sweat stains, and poor sublimation fastness. When printing, the product-specific fullness and layering are not strong. Contents of the invention [0003] The present invention aims to solve the above-mentioned problems existing in the pri...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22C09B67/38C09B67/36D06P1/18D06P3/54
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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