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Reactive orange dye compound and preparation method thereof

A compound, orange dye technology, applied in the field of reactive orange dye compounds and their preparation, can solve the problems of increased dye fixation rate, unmatched activity of reactive groups, etc., and achieves the effect of excellent fastness performance

Inactive Publication Date: 2017-02-15
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

However, due to the unmatched activity of the active group in this method, the increase in the color fixation rate of the dye is not large, generally only 70-80%.

Method used

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  • Reactive orange dye compound and preparation method thereof
  • Reactive orange dye compound and preparation method thereof
  • Reactive orange dye compound and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] (1) Dissolve 25.3 parts of N-methyl J acid in 200 parts of water, add 10% sodium carbonate solution to adjust the pH to 6, completely dissolve, then add 13.5 parts of trifluoropyrimidine at a temperature of 20°C and a pH of Under the condition of 7, carry out condensation 5h, when there is no N-methyl J acid, it is the end point, and the condensation product is obtained;

[0027] (2) Get 33.1 parts of the diazonium salt of 2-naphthylamine-6-(β-ethylsulfone sulfate), and the condensation product obtained in step (1) is 15 ℃ at a temperature, and the pH is 6 conditions, coupling After reacting for 5 h, Compound A was obtained; its molecular weight was 709 by HPLC-MS, which was consistent with its structure.

[0028]

Embodiment 2

[0030] (1) Dissolve 23.9 parts of J acid in 200 parts of water, add 10% sodium carbonate solution to adjust the pH to 6, completely dissolve, then add 13.5 parts of trifluoropyrimidine at 10°C, and condense under the condition of pH 9 Reaction 6h, when there is no J acid, it is the end point, and the condensation product is obtained;

[0031] (2) Get the diazonium salt of 41.1 parts of 2-naphthylamine-6-(β-ethylsulfone sulfate)-1-sulfonic acid, and the condensation product that step (1) makes, at 15 ℃, pH is Under the conditions of 7, the coupling reaction was carried out for 5 hours to obtain compound B; its molecular weight was 770 by HPLC-MS, which was consistent with its structure.

[0032]

Embodiment 3

[0034] Compound C was obtained by a method similar to that of Example 1; its molecular weight was 789 as measured by HPLC-MS, which was consistent with its structure.

[0035]

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Abstract

The invention discloses a reactive orange dye compound and a preparation method thereof. The high-color fixing rate orange dye is obtained through respectively connecting a vinyl sulfone sulfate active group and a trifluoropyrimidine active group to two sides of a maternal dye. The orange dye contains no adsorbable organic halogens, meets European AOX laws and regulations, has better color fastness than other common orange dyes, can be used for dip dyeing, continuous pad dyeing or printing of cellulose fiber fabrics, and has excellent other fastness performances.

Description

technical field [0001] The invention relates to the technical field of reactive dyes, in particular to a reactive orange dye compound containing a naphthalene structure in its structure and a preparation method thereof. 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 our country, green technology that can save energy, reduce emissions, and be environmentally friendly is 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 double reactive dyes is ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/825C09B67/24D06P1/38D06P3/66
CPCC09B62/825C09B67/0072D06P1/384D06P3/666
Inventor 王小军
Owner 江苏德美科化工有限公司
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