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Composite active black dye

A technology of reactive dyes and reactive black, applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve the problems of low success rate, rework, modification, high COD of dyeing residue, etc.

Active Publication Date: 2015-04-22
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, its dyeing stability is not enough, the color difference between front and back is large, the success rate is not high when it is used in the factory, and there are many rework and modification
Due to the low absolute fixation rate of reactive black dye, the COD of the dyeing residue is very high

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

[0060] Each reactive dye composition (sample number 1-10) according to the ratio shown in Table 1 was mixed as dry powder in a mixing tank, or spray-dried after dissolving together.

[0061] There are other reactive dye compositions that are not listed one by one, but are included in the present invention.

[0062] Table 1

[0063]

Embodiment 2

[0065] 100g cotton cloth, by the black dyestuff that sample 1-15 obtains in the embodiment 1, by the weight 2% of fabric, in the dyeing bath that contains 60g / l yuan Mingfen, liquor ratio is 20:1, absorbs 30min under 60 ℃, adds Soda ash (amount of 15-20g / l) fixes the color for 45 minutes. The dyed fabric is washed, soaped and dried. The resulting black cotton cloth had a uniform black color and satisfactory light and wet treatment fastness. The specific performance is shown in Table 2.

[0066] Table 2

[0067]

[0068]

[0069] According to a large number of experimental detections, the composite reactive black dye of the present invention has better application performance than the traditional reactive black dye, and the specific comparative data are shown in Table 3.

[0070] table 3

[0071] serial number

[0072] sample 14

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PUM

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Abstract

The invention relates to the field of active dye in a novel material technology, and particularly relates to composite active black dye. The composite active black dye is formed by mixing active dye A, active dye B, active dye C and active dye D, wherein the weight percent of the four active dye is as follows: the dye A accounts for 5 to 70 percent; the dye B accounts for 5 to 70 percent; the dye C accounts for 5 to 20 percent; the dye D accounts for 5 to 30 percent. The dye provided by the invention is not only good in compatibility and easy to wash, but also relatively high in fixation rate; the absolute fixation rate of the composite active black dye reaches up to 80 to 85 percent; the dying residual liquid can be reduced by 30 to 40 percent under the same condition.

Description

technical field [0001] The invention relates to the field of reactive dyes in new material technology, in particular to a composite reactive black dye. Background technique [0002] As a representative of the modern dye industry, reactive dyes have developed rapidly in the past 50 years. At present, the annual output of reactive dyes for cellulose fibers in the world is about 250,000 tons, accounting for about 20% of the world's annual output of dyes. Reactive black dyes are the most widely used and the largest amount of dyes. In view of the current conventional reactive black dye species (such as: reactive black WNN) during exhaust dyeing, its absolute fixation rate is not high and unstable, generally only 65-70%. As a result, its dyeing stability is not enough, the color difference between front and back is large, the success rate is not high when it is used in the factory, and there are many reworks and modifications. Since the absolute fixation rate of reactive black ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/22D06P1/384D06P3/66
Inventor 孟胜锋秦杰峰潘克存康定杨军
Owner ZHEJIANG YIDE CHEM
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