Composite active black dye

A technology of reactive black and dyes, applied in the field of reactive black dyes, to achieve the effects of reducing head and tail color difference, uniform dyeing, lifting power and blackness

Inactive Publication Date: 2011-08-24
WUJIANG YISHENG TEXTILE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, some application properties of composite reactive black dyes need to be improved, such as color fixing rate, solubility, lifting rate, dyeing depth, washing fastness, rubbing fastness, etc.

Method used

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  • Composite active black dye
  • Composite active black dye
  • Composite active black dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] The dyestuff of the formula (1-1) obtained by synthesis of 60g, the dyestuff of formula (2-1) obtained by synthesis of 15g, the dyestuff of formula (3-1) obtained by synthesis of 8g, 14g sodium sulfate and 3g dispersant MF are carried out Mechanical blending can obtain the reactive black dye composition of the present invention.

[0041] The disperse dye that embodiment 1 is made carries out performance test, and test method is as follows:

[0042] 1 g of the dye composition prepared in the above-mentioned manner was fully dissolved with an appropriate amount of water, and then settled in a 250 ml volumetric flask. Draw 50ml of dye solution and mix it with 50ml of water, then add 5g of cotton cloth and 6g of sodium sulfate, then raise the temperature to 60°C at a rate of 1°C / min, keep it for 30 minutes, add 2g of sodium carbonate, and keep it at 60°C for 30 minutes, then Take out the cotton cloth to be dyed, boil it with non-ionic detergent boiling soap for 15 minutes,...

Embodiment 2-4

[0043] Embodiment 2-4, comparative example 1-3:

[0044] According to the preparation method of Example 1, the consumption is as shown in Table 1

[0045] Table 1

[0046]

[0047] The test results are shown in Table 2:

[0048] Table 2

[0049]

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Abstract

The invention relates to a composite active black dye and preparation and use thereof, in particular to a composite active black dye for dyeing cellulose or protein fibers. The composite active black dye has high fastness to washing, lifting power, dyeing uniformity, dyeing reproducibility and dye-uptake. The composite active black dye mainly contains dye compounds of formula (I), formula (II) and formula (III).

Description

1. Technical field [0001] The invention relates to a composite reactive black dye and its preparation and use, more particularly to a reactive black dye suitable for dyeing cellulose or protein fibers. The invention belongs to the field of dyes. 2. Background technology [0002] Reactive dyes have a history of more than 50 years since their industrial production in 1956, and have developed rapidly during this period. The traditional monochromatic black varieties in reactive dyes have limited their development due to their poor dyeing depth and narrow application range. According to the needs of the market, through continuous improvement and perfection of their functions, with high dyeing rate and color fixation rate, High level dyeing, high lifting power, high blackness and easy washing, especially to overcome the staining of nylon when it is interwoven with cotton nylon and blended fabrics in the same bath, so as to improve the grade of products and expand its application ...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/24D06P1/38D06P3/66D06P3/10
Inventor 刘鹏
Owner WUJIANG YISHENG TEXTILE
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