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Composite reactive black dye

A technology of reactive black and dyes, applied in the field of dyes, can solve problems such as unsatisfactory blackness, color difference between head and tail, color difference between sides, etc., and achieve the effect of similar structure, good compatibility, excellent fastness performance, and high color fixation rate

Active Publication Date: 2018-05-04
HUBEI HUALI DYESTUFF INDAL
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  • Abstract
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  • Claims
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AI Technical Summary

Problems solved by technology

[0003] Black dye is the color with the largest amount of reactive dyes. Most of the dyes used in the market are compounded by adding orange components to C.I. The following disadvantages still exist in the process: (1) The blackness is not ideal; (2) Since C.I. Reactive Black 5 and the orange component contain different types of active groups, the sensitivity of the two to the dyeing conditions of the fiber is relatively large. Therefore, level dyeing and reproducibility are difficult to guarantee; (3) Some fastnesses (such as washing fastness, light fastness, etc.) are not ideal; Chromatic aberration

Method used

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  • Composite reactive black dye
  • Composite reactive black dye
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Examples

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Embodiment 1-6

[0023] Select the dyestuff of four structural formulas as formula (1), formula (2), formula (3) and formula (4), according to the parts by weight measurement data shown in table 1, formula (1) dyestuff, formula (2) After the dye, the dye of formula (3), the dye of formula (4) and the auxiliary agent are blended, fully mechanically mixed, the composite reactive black dye can be obtained. Wherein, the auxiliary agent can be commonly used auxiliary agent such as leveling agent (such as Pingping plus O), dyeing accelerator (such as salt or Yuanming powder), surfactant (such as sodium dodecylbenzene sulfonate), dispersant ( Such as one of polyacrylic acid) or its mixture in any proportion, it can also be functional additives added for different purposes such as softener (such as ester quaternary ammonium salt), dustproof agent (such as water-soluble dustproof agent), One of the antistatic agents (such as antistatic agent SN) or a mixture in any proportion. The composite reactive b...

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Abstract

The invention provides a composite reactive black dye which is prepared by compounding dyes shown as a formula (1), a formula (2), a formula (3) and a formula (4). The composite reactive black dye disclosed by the invention is prepared by compounding two disazo dyes and monoazo-dyes, has high black degree, high reactivity, high increase rate and high solubility as well as good fixation ability andexcellent application performance, is applicable to continuous padding and cold pad-batch processes, and can effectively solve problems such as head-tail shading and side-to-centre shading during continuous padding.

Description

technical field [0001] The invention belongs to the technical field of dyes, in particular to a composite reactive black dye. Background technique [0002] In recent years, the demand for reactive dyes in my country has been increasing, and the output has been increasing year by year. The requirements for their application performance are getting higher and higher. In particular, the dyeing depth of dyes has become the focus of dye competition. Dyes with good dyeing depth have the advantages of energy saving and emission reduction. As a result, the sewage generated is greatly reduced. [0003] Black dye is the color with the largest amount of reactive dyes. Most of the dyes used in the market are compounded by adding orange components to C.I. The following disadvantages still exist in the process: (1) The blackness is not ideal; (2) Since C.I. Reactive Black 5 and the orange component contain different types of active groups, the sensitivity of the two to the dyeing conditio...

Claims

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Application Information

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IPC IPC(8): C09B67/24D06P1/384
CPCC09B67/0072D06P1/384
Inventor 崔孟元朱纯杰熊建平梦文
Owner HUBEI HUALI DYESTUFF INDAL
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