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A kind of reactive black dye composition and its application

A dye composition, reactive black technology, applied in the directions of organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of limited use, poor lifting force, insufficient blackness, etc., and achieve excellent color fastness and dye depth. Good, outstanding effect on water fastness to washing and rubbing fastness

Active Publication Date: 2019-08-13
ZHEJIANG LONGSHENG CHEM RES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But at the same time, there are also defects such as poor lifting force and insufficient blackness, which limit its wide use.
[0005] In the prior art, reactive black KN-B is mainly used for color matching to obtain reactive black dyes, and its dyeing performance is improved, such as patents CN105542510A, CN105778562A and patent CN105778559A, etc., but these products are in terms of washing fastness and rubbing fastness There is still room for further improvement

Method used

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  • A kind of reactive black dye composition and its application
  • A kind of reactive black dye composition and its application
  • A kind of reactive black dye composition and its application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Component A of 58 grams of formula (1-1), component B of 6 grams of formula (2-1), component C of 18 grams of formula (3-1), the group of 18 grams of formula (4-1) Point D and 15 grams of sodium sulfate are mechanically mixed, and the dye composition obtained can dye the fabric black.

[0037]

[0038]

Embodiment 2

[0040] Component A of 55 grams of formula (1-2), component B of 5 grams of formula (2-2), component C of 20 grams of formula (3-1), the group of 20 grams of formula (4-1) Point D and 15 grams of sodium sulfate are mechanically mixed, and the dye composition obtained can dye the fabric black.

[0041]

Embodiment 3～30

[0043] By the method described in embodiment 1 or 2, adopt the kind and the weight of component A~D and auxiliary agent in table 1, carry out mechanical mixing equally, obtain reactive dyestuff of the present invention and fabric can be dyed black:

[0044] Table 1

[0045]

[0046]

[0047]

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PUM

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Abstract

The invention provides a reactive black dye composition. The reactive black dye composition is composed of 30-85% by mass of a component A, 1-40% by mass of a component B, 5-45% by mass of a componentC and 5-45% by mass of a component D. The component A is at least one of compounds shown in the formula (1). The component B is at least one of compounds shown in the formula (2). The component C isat least one of compounds shown in the formula (3). The component D is at least one of compounds shown in the formula (4). The reactive black dye composition has good dyeing depth and excellent colorfastness in printing and dyeing, has excellent washing fastness and rubbing fastness and is environmentally friendly and economic.

Description

[0001] (1) Technical field [0002] The invention relates to a reactive black dye composition, in particular to a reactive black dye composition suitable for printing and dyeing cellulose fibers or materials containing cellulose fibers. [0003] (2) Background technology [0004] Among reactive dyes, dark dyes are used in large amounts, especially black reactive dyes. Reactive black KN-B has low price, good fastness, high color fixation rate and easy washing, and there is no AOX Environmental protection issues, so the amount is relatively large. But there are also defects such as poor lifting force and insufficient blackness, which limit its wide use. [0005] In the prior art, reactive black KN-B is mainly used for color matching to obtain reactive black dyes, and its dyeing performance is improved, such as patents CN105542510A, CN105778562A and patent CN105778559A, etc., but these products are in terms of washing fastness and rubbing fastness There is still room for further...

Claims

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Application Information

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IPC IPC(8): C09B67/22C09B67/24D06P1/384D06P3/66D06P3/24
CPCC09B67/0059C09B67/0072D06P1/384D06P3/248D06P3/666
Inventor 何旭斌王小红汪仁良陈东何苏娥
Owner ZHEJIANG LONGSHENG CHEM RES
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