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Blue reactive dye mixture and preparation and application thereof

A technology of reactive dyes and mixtures, applied in the field of dyes

Active Publication Date: 2011-10-12
HUBEI COLOR ROOT TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in many cases, especially in very dark dyeing, the dyes of the prior art cannot meet the above performance requirements, so printing and dyeing companies need excellent reactive dyes to dye very dark fabrics

Method used

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  • Blue reactive dye mixture and preparation and application thereof
  • Blue reactive dye mixture and preparation and application thereof
  • Blue reactive dye mixture and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] Embodiment 1, dyestuff preparation

[0047] Beat 18.5 parts of cyanuric chloride in ice water, then add 21 parts of 2.4 neutral solution of diaminobenzenesulfonic acid in 1-1.5 hours, react at pH=6-7 for 3 hours, then add 28.1 parts of 3- (β-Ethyl sulfone sulfate) aniline was added, the temperature was raised to 35-45°C, and the reaction was carried out at pH=4.5-5.5 for 6 hours. Then cool down the solution to 0°C, add quantitative hydrochloric acid and sodium nitrite for diazotization, then add the neutral solution of 1 naphthol 8 amino 3.6 disulfonic acid to the diazonium salt, at T=5°C, Reaction at pH=3 for 8 hours to obtain primary condensation product, then beat aniline 2.5 disulfonic acid in ice water for 1 hour, add quantitative hydrochloric acid and sodium nitrite, react at T=5°C for 1 hour, add the diazonium In the first condensation liquid, react at T=5°C, pH=6-6.5 for 6 hours, then use a closed filter to remove insoluble matter, and then use a nanofiltration...

Embodiment 2

[0049] Embodiment 2, the preparation of dyestuff

[0050] Beat 18.5g of cyanuric chloride in ice water for 45 minutes, then add 21 parts of neutral liquid of 2.4 diaminobenzenesulfonic acid into the beaten cyanuric chloride in 1-1.5 hours, at T=5°C , react at pH=6-7 for 3 hours, then add 3-(β-ethylsulfone sulfate) aniline, raise the temperature to 35-45°C, and react at pH=4.5-5.5 for 6 hours. Then cool the condensate to 0°C, add quantitative hydrochloric acid and sodium nitrite solution, and then react the neutral 8-naphthol-1 amino-3.6 disulfonic acid solution at T=5°C, pH=2-3 After 8 hours, diazotize aniline 2,5 disulfonic acid according to the conventional diazo method, add it to the first condensate, and react at pH=6.5, T=5°C for 6 hours to obtain the compound that meets the general formula ( 1) dyes (1-2),

[0051]

Embodiment 3-10

[0053] According to the synthetic method of embodiment 1-2, choose the intermediate that is defined as (3) (4) (5) (6) (7) by the present invention, can obtain the following dyestuff that meets general formula (1) equally, they Can print and dye fiber materials into qualified blue.

[0054]

[0055]

[0056]

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PUM

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Abstract

The invention discloses a blue reactive dye mixture. The blue reactive dye mixture is characterized by comprising a dye shown in a general formula (1) and a dye shown in a general formula (2 in the weight ratio of (68.6-60):(26.3-32). The dye mixture has excellent light color boosting capacity and high color fixing rate when dyeing or printing cellulose, has higher dyeing reproducibility than ordinary commercial dyes, and can effectively solve the problems of dyeing defects and staining; and the formula is low in cost. Moreover, the blue reactive dye mixture has excellent color fastness to sunlight and perspiration-light, and is applicable to various application processes.

Description

Technical field: [0001] The invention relates to a blue reactive dye mixture and its preparation and application, belonging to the technical field of dyes. Background technique: [0002] With the increasing requirements for fabric color and luster in people's life, it leads to continuous improvement of dyeing quality and dyeing process, and great achievements have been made in quality improvement and cost reduction. Today, the market needs, for example, reactive dyes that are sufficiently substantive and at the same time allow good and easy washout of unfixed dye. In addition, all dyes should have good color yield and high reactivity, which are especially suitable for dyes with high color-fixing properties. However, in many cases, especially in very dark dyeing, the dyes of the prior art cannot meet the above-mentioned performance requirements, so printing and dyeing enterprises need excellent reactive dyes to dye very dark fabrics. Invention content: [0003] The object...

Claims

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Application Information

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IPC IPC(8): C09B67/24D06P1/38
Inventor 罗润富罗俊龙顾培农邓今强
Owner HUBEI COLOR ROOT TECH CO LTD
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