Reactive orange dye as well as preparation method and application thereof

A technology of orange dye and reactive orange, which is applied in the field of textile printing and dyeing, can solve the problems of high salt and high alkali dyeing, limited reactive dyes, low dyeing depth, etc., and achieves the goals of reducing production costs, high product yield, and reducing alkali consumption Effect

Active Publication Date: 2018-11-23
苏州澳缘盛新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] As a representative of the modern dye industry, reactive dyes have achieved rapid development in recent years. At present, the annual output of reactive dyes for cellulose fibers in the world has reached more than 200,000 tons, accounting for more than 20% of the world's annual output of dyes. Human beings have increasing requirements for environmental protection. Traditional reactive dyes, especially reactive orange dyes, have shortcomings such as low color fixation rate, low dyeing depth, and high-salt and high-alkali dyeing. The application of reactive dyes is limited, so it is urgent to develop a group of reactive dyes with high color fixation rate, high dyeing depth and low salt-alkali dyeing

Method used

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  • Reactive orange dye as well as preparation method and application thereof
  • Reactive orange dye as well as preparation method and application thereof
  • Reactive orange dye as well as preparation method and application thereof

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Experimental program
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Effect test

Embodiment 1

[0040] The present embodiment provides a kind of preparation method of active orange dye, it comprises:

[0041] (1) Use at 12±1°C Reacting in an aqueous solution with a pH value of 5.5±0.2 to obtain a first reaction mixed solution;

[0042] (2) Add hydrogen chloride (selection concentration is the hydrochloric acid solution of 33% in the described first reaction mixed solution, and molar ratio is the hydrogen chloride content obtained through calculation, contains hydrogen chloride 54.8g), sodium nitrite 75.9g, at 1 ± 1 Reaction at ℃ to obtain the second reaction mixed solution;

[0043] (3) Add to the second reaction mixture solution Reacting at 6±1°C and at a pH value of 6.5±0.2 to obtain a third reaction mixed solution;

[0044] (4) In the presence of 12g fatty alcohol polyoxyethylene ether, add to the third reaction mixed solution reacting at 40±2°C and at a pH value of 5.5±0.2 to obtain a fourth reaction mixed solution;

[0045] (5) Use at 1±1°C Hydrogen chlori...

Embodiment 2

[0050] The present embodiment provides a kind of preparation method of active orange dye, it comprises:

[0051] (1) Use at 13±1°C Reacting in an aqueous solution with a pH value of 5.6±0.2 to obtain a first reaction mixed solution;

[0052] (2) Add hydrogen chloride (the selected concentration is 33% hydrochloric acid solution, the molar ratio is calculated hydrogen chloride content, containing hydrogen chloride 62g) and sodium nitrite 78g in the first reaction mixed solution, at 1 ± 1 ° C Reaction, obtains the second reaction mixed solution;

[0053] (3) Add to the second reaction mixture solution reacting at 7±1°C and at a pH value of 6.4±0.1 to obtain a third reaction mixed solution;

[0054] (4) In the presence of 16g ​​fatty alcohol polyoxyethylene ether, add to the third reaction mixed solution reacting at 40±2°C and at a pH value of 5.5±0.2 to obtain a fourth reaction mixed solution;

[0055] (5) Use at 1±1°C Hydrogen chloride (selection concentration is the h...

Embodiment 3

[0060] The present embodiment provides a kind of preparation method of active orange dye, it comprises:

[0061] (1) Use at 12±1°C Reacting in an aqueous solution with a pH value of 5.5±0.2 to obtain a first reaction mixed solution;

[0062] (2) Add hydrogen chloride (selection concentration is the hydrochloric acid solution of 33% in the described first reaction mixed solution, and mol ratio is the hydrogen chloride content obtained through calculation, contains hydrogen chloride 55.8g), potassium nitrite 102.1g, in 2 ± 1 Reaction at ℃ to obtain the second reaction mixed solution;

[0063] (3) Add to the second reaction mixture solution reacting at 6±1°C and at a pH value of 6.3±0.2 to obtain a third reaction mixed solution;

[0064] (4) In the presence of 25g fatty alcohol polyoxyethylene ether, add to the third reaction mixed solution reacting at 45±2°C and at a pH value of 5.7±0.2 to obtain a fourth reaction mixed solution;

[0065] (5) Use at 2±1°C Hydrogen chlo...

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Abstract

The invention discloses reactive orange dye as well as a preparation method and application thereof. The reactive orange dye has a structural general formula as shown in the description, wherein M represents hydrogen, sodium, potassium or lithium. The preparation method comprises the following steps: completing condensation reaction and diazo-reaction through sub-steps, and then coupling, thus preparing the reactive orange dye. The invention also discloses the application of the reactive orange dye in printing and dyeing. The reactive orange dye disclosed by the invention has higher color fixation rate, deep dyeing property and bright color; meanwhile, the reactive orange dye has low-alkali dyeing property, the sewage emission is greatly reduced, and the requirements on environment protection at present can be particularly met.

Description

technical field [0001] The invention belongs to the field of textile printing and dyeing, and in particular relates to a reactive orange dye and its preparation method and application. Background technique [0002] Reactive dyes, also known as reactive dyes, are a class of dyes that chemically react with fibers during dyeing. Its outstanding features are: broad chromatogram, bright color, excellent performance, strong applicability, and it can obtain high levels of fastness, especially wet fastness, with economical dyeing process and simple dyeing operation. One of the best choices to replace banned dyes and other types of fiber dyes (such as sulfur dyes, ice dyes and vat dyes, etc.). [0003] As a representative of the modern dye industry, reactive dyes have achieved rapid development in recent years. At present, the annual output of reactive dyes for cellulose fibers in the world has reached more than 200,000 tons, accounting for more than 20% of the world's annual output...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/513D06P1/38D06P3/66
Inventor 陆海英陆再宏庄永祥
Owner 苏州澳缘盛新材料科技有限公司
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