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Red reactive dye composition

A technology of reactive dyes and compositions, applied in organic dyes, dyeing methods, textiles and papermaking, etc., can solve problems such as insufficient shade, poor staining fastness, high directness, etc., achieve rich shade, lower production cost, The effect of solubility increase

Active Publication Date: 2015-06-17
江苏德美科化工有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] At present, reactive red 21 and red 180 are commonly used as red dyes imitating batik technology in the market. Their discharge effect is very good, but their shade is not bright enough, and the staining (back-staining) fastness is very poor, especially reactive red 21. The shade is very dark, the directness is very strong, and the back staining is very serious

Method used

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  • Red reactive dye composition
  • Red reactive dye composition
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027]

[0028] Compounds shown in general structural formula (I-1), (II-1) are blended according to the mass percentage of 50% and 50%, and reactive dye composition is obtained, and reactive dye composition 74.9%, dispersing agent (a Naphthalene sulfonic acid formaldehyde condensate, condensation degree is 2, sulfonation degree is 1) 10%, water-based dustproof agent 0.1%, yuanming powder 10% and nonionic leveling agent (ethylene oxide condensate, condensation The degree is 200) 5%, mixed to make commercial dyes;

[0029] Take 5 parts of the above-mentioned commercial dyes, add 7 parts of urea, 1 part of anti-staining salt S, 2 parts of baking soda, 70 parts of anti-white pulp, 2 parts of sodium sulfite and 13 parts of hot water to make a dyeing paste, and use the conventional operation method on cotton fabric Carry out imitation wax printing, air-dry with hot air at 90°C, steam with saturated steam at 102°C for 7 minutes, and finally wash with hot water, cold water, soap, ...

Embodiment 2

[0031]

[0032] Compounds shown in general structural formula (I-1), (II-2) are blended according to the mass percentage of 55% and 45%, and reactive dye composition is obtained, and 65% of reactive dye composition, diffusing agent (a Naphthalene sulfonic acid formaldehyde condensate, condensation degree 4, sulfonation degree 1) 10%, water-based dustproof agent 0.5%, Yuanming powder 14.5% and nonionic leveling agent (ethylene oxide condensate, condensation degree 150) 10%, mixed to make commercial dyes;

[0033] Take 5 parts of the above-mentioned commercial dyes, add 7 parts of urea, 1 part of anti-staining salt S, 2 parts of baking soda, 70 parts of anti-white pulp, 2 parts of sodium sulfite and 13 parts of hot water to make dyeing paste, and use the conventional operation method to dye the hemp fabric. Perform wax imitation printing, dry in hot air at 90°C, steam with saturated steam at 102°C for 7 minutes, and finally wash in hot water, cold water, soap, water, and dry ...

Embodiment 3

[0035]

[0036] Compounds shown in general structural formula (I-2), (II-1) are blended according to the mass percentage of 45% and 55%, and reactive dye composition is obtained, and 80% of reactive dye composition, diffusing agent (a Naphthalene sulfonic acid formaldehyde condensate, condensation degree 2, sulfonation degree 1) 5%, water-based dustproof agent 0.2%, yuanming powder 5% and nonionic leveling agent (ethylene oxide condensate, condensation degree 180) 9.8%, mixed to make commercial dyes;

[0037] Take 5 parts of the above-mentioned commercial dyes, add 7 parts of urea, 1 part of anti-staining salt S, 2 parts of baking soda, 70 parts of anti-white paste, 2 parts of sodium sulfite and 13 parts of hot water to make dyeing paste, and use the conventional operation method to treat the leather fabric. Perform wax imitation printing, dry in hot air at 90°C, steam with saturated steam at 102°C for 7 minutes, and finally wash in hot water, cold water, soap, water, and d...

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Abstract

The invention discloses a red reactive dye composition which is formed by mixing 40-60% of a compound shown in a structural formula (I) and 40-60% of a compound shown in a structural formula (II); 65-80% of the red reactive dye composition, 5-10% of a dispersing agent, 0.1-0.5% of a dust preventive, 5-15% of anhydrous sodium sulfate and 5-10% of a nonionic leveling agent are mixed to prepare a commercial dye. The commercial dye can be used for discharge printing, anti-dyeing printing or batik dyeing imitating printing of cellulosic fiber fabrics, and has the characteristics of being bright-colored and pure in colored light, high in brightness, high in white cloth staining and after tack fastness and excellent in other fastness properties.

Description

technical field [0001] The invention relates to the field of reactive dyes, in particular to a red reactive dye composition and its application in various printing processes on cellulose fiber fabrics. Background technique [0002] Reactive dyes have developed rapidly due to their advantages such as complete chromatograms, bright colors, excellent performance, and strong applicability. Due to the increasingly stringent environmental protection in my country, energy-saving, emission-reducing, and environmentally friendly green processes are vigorously advocated. For reactive dyes, the amount of wastewater produced by different dyeing processes and the COD in wastewater are very different. For exhaust dyeing, due to the liquor ratio requirements, this dyeing process will produce a large amount of wastewater, and the dyeing process of exhaust dyeing The utilization rate of the dye is not high (generally, the fixation rate of the double-reactive dye is 60-80%), and a large amoun...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/24D06P1/384
Inventor 王小军
Owner 江苏德美科化工有限公司
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