High-fastness black vat dye and preparation method thereof

A dye fastness technology, applied in the field of high-fastness black vat dyes and its preparation, can solve the problems of sun resistance, low washing fastness, low pad dyeing rate, suspension dispersion stability and poor diffusibility, etc. problems, achieve excellent washing fastness, simple preparation method and excellent color fastness

Inactive Publication Date: 2016-12-07
安徽融创化工科技股份有限公司
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Problems solved by technology

At present, most of the commercially available black dyes are single-component. For example, vat dyes such as vat black RB, which are widely used, have low chlorine bleaching fastness, difficult dyeing operation for dark colors, and low light resistance and washing fastness. Can not meet the nee

Method used

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  • High-fastness black vat dye and preparation method thereof
  • High-fastness black vat dye and preparation method thereof
  • High-fastness black vat dye and preparation method thereof

Examples

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[0021] Examples:

[0022] The composition and mass percentage content of the black vat dyes with high fastness in Examples 1-5 are as follows:

[0023] Table 1

[0024]

[0025]

[0026] The method for preparing high fastness black vat dyes is as follows: weigh the filter cakes of dye monomers A, B, C, and D in proportions, add them to the dispersing kettle, and then add a dispersant to make a slurry. Transfer to a liquid fine crusher for pulverization, then transfer to a sand mill for grinding for 65-70h, the fineness of the grinded slurry is 0.5-2μm, ultrasonic for 5min while stirring, and then transfer to a microwave drying chamber for drying within 3min. At the same time, spray the dustproof agent, and finally the finished product is packaged.

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Abstract

The invention discloses a high-fastness black vat dye and a preparation method thereof. The dye is composed of the following components in percentage by mass: 7-10% of dye monomer A, 3-5% of dye monomer B, 7-10% of dye monomer C, 17-20% of dye monomer D, 0.5-2% of dust preventive and the balance of dispersing agent. The dye has various favorable color fastnesses, and especially has excellent fastness to chlorine bleaching, solarization and washing; the fastness to chlorine bleaching is up to Grade 4-5, and the fastness to washing is Grade 4-5; and the dye has the advantages of simple preparation method and high dye uptake, and is suitable for dye printing of textiles with high-quality requirements.

Description

technical field [0001] The invention relates to the technical field of vat dyes, in particular to a high-fastness black vat dye and a preparation method thereof. Background technique [0002] Vat dyes are dyes with excellent performance in dyes. They have many varieties, relatively complete chromatograms, bright colors, good color fastness, good washing fastness and light fastness, and can be widely used in cotton. , wool, silk, linen, synthetic fibers and their blended fabrics, printing and dyeing of interwoven fabrics. At present, most of the commercially available black dyes are single-component. For example, vat dyes such as vat black RB, which are widely used, have low chlorine bleaching fastness, difficult dyeing operation for dark colors, and low light resistance and washing fastness. Can not satisfy the demand that people's high quality of life pursues. In addition, in its commercial manufacturing process, due to the improper selection of additives and their propor...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/28
CPCC09B67/0034C09B67/0065C09B67/0077
Inventor 王洪卫徐卉香李振蒋大为高鸿宇郭元
Owner 安徽融创化工科技股份有限公司
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