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Composite anthraquinone-type cobalt blue reactive dye

A reactive dye and anthraquinone-based technology, applied in organic dyes, dyeing methods, textiles, and papermaking, can solve problems such as low color fastness and poor lifting power, and improve product quality, washability, and The effect of dyeing rate

Inactive Publication Date: 2013-01-02
ZHEJIANG YIDE CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The color fastness of this kind of dye is relatively low when dyeing, especially the lifting power is poor. When dyeing dark colors, the dye molecules are easily associated with each other and hydrolyzed to produce a "red soup" phenomenon.

Method used

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  • Composite anthraquinone-type cobalt blue reactive dye
  • Composite anthraquinone-type cobalt blue reactive dye
  • Composite anthraquinone-type cobalt blue reactive dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] Synthesis of reactive dye A:

[0018] 78.6 g of bromonic acid, 42.5 g of amino oil (m-(β-hydroxyethylsulfone) aniline) and 250 g of water were beaten at 90-95°C for 1 hour. Then lower the temperature to 60-65°C, add 45g of baking soda, then add 1g of copper powder and 2g of cuprous chloride at 60-65°C, keep the temperature for 15 hours, and take samples for liquid chromatography analysis. as the end point. Pour the material into 800g water for beating for 1 hour, and use 40-50% sulfuric acid to acidify the pH value to 1-2. After stabilizing the pH value at 1-2 for 30 minutes, carry out suction filtration, dry and dry the filter cake at 80-100°C, and control the moisture content to ≤1%. The synthetic reaction formula of chromophore is shown in formula (5) below.

[0019]

[0020] After crushing the dried 110g filter cake, slowly add it to 500g 98% concentrated sulfuric acid for esterification reaction, react at room temperature for 15 hours, take a sample for liqui...

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Abstract

The invention discloses a composite anthraquinone-type cobalt blue reactive dye which is prepared by mixing 10-70% of reactive dye A, 10-70% of reactive dye B and 0-80% of assistant, wherein the structural general formulae of A and B are disclosed as (1) and (2). The invention improves the color development and dyeing behavior of the product reactive dye by using the compound densification effect of the two dyes, thereby enhancing the dye-uptake and fixation rate of the dye, improving other application properties of the dye, and especially enhancing the alkaline resistance properties of the dye. The invention implements favorable level-dyeing property, ensures the color consistency before and after pad dyeing, and ensures low red soup tendency in the deep color cold rolling dyeing process. The dye is particularly suitable for dyeing cellulose fibers, protein fibers and polyamide fibers.

Description

technical field [0001] The invention relates to a composite anthraquinone type brilliant blue reactive dye suitable for exhaust dyeing, tie-dyeing-steaming, tie-dyeing-baking, cold pad stacking and jet dyeing of cellulose fibers, protein fibers and polyamide fibers. Background technique [0002] Dyestuffs such as reactive brilliant blue KN-R produced by dyestuff manufacturers are based on a monomeric compound prepared from bromic acid and vinyl sulfone sulfate aniline as main raw materials. The color fastness of this kind of dye is relatively low when dyeing, especially the lifting power is poor. When dyeing dark colors, the dye molecules are easily associated with each other and hydrolyzed to produce a "red soup" phenomenon. Contents of the invention [0003] Aiming at the defects in the prior art, the present invention provides a composite anthraquinone-type brilliant blue reactive dye, which has high dye uptake and fixation rate, high level dyeing property, high lifting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B67/24C09B67/22D06P1/384D06P3/66
Inventor 孟胜锋王高峰秦杰峰潘克存李玲
Owner ZHEJIANG YIDE CHEM
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