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Purple active dye based on triazo-chromogenic body, and preparation and application of same

A technology of reactive dyes and trisazo, which is applied in the field of reactive dyes and their preparation and application, can solve the problems of insufficient lifting performance and color fastness, poor compatibility, etc., and achieve novel shades, good strength performance and color fastness, The effect of lifting force performance and color fastness

Pending Publication Date: 2020-03-31
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by this invention is to provide a kind of purple reactive dyes based on trisazo polychromophore and its preparation and application, to overcome the lack of color intensity, lifting power performance and color fastness of purple reactive dyes in the prior art and the The problem of poor compatibility of color matching between two dye molecules of complex purple reactive dyes

Method used

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  • Purple active dye based on triazo-chromogenic body, and preparation and application of same
  • Purple active dye based on triazo-chromogenic body, and preparation and application of same
  • Purple active dye based on triazo-chromogenic body, and preparation and application of same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0048] The synthetic technique of the purple reactive dye with following structure:

[0049]

[0050](1) Preparation of a condensate: 18.8 g (0.102 mol) of cyanuric chloride was configured into a suspension with a mass fraction of 20%, and it was beaten in an ice-water bath at 0-2°C for 0.6 h. Accurately weigh 34.1g (0.100mol) H acid, configure it into an aqueous solution with a mass fraction of 20%, adjust its pH value to 6.0 with 10% NaOH, and add it dropwise to the beating at 0-5°C In the cyanuric chloride, keep the temperature at 3~5℃ after the dropwise addition, and use 15% Na 2 CO 3 Adjust the pH value to 4.5, react for 4 hours, and detect the end point of the shrinkage reaction by thin-layer chromatography (developing solvent: n-butanol: ethanol: ammonia water = 6:2:3).

[0051] (2) Preparation of diazonium salt of anthranilsulfonic acid: Accurately weigh 17.3g (0.098mol) of anthranilsulfonic acid, configure it into an aqueous solution with a mass fraction of 20%, ...

Embodiment 2

[0059] The synthetic method of present embodiment active dye is the same as embodiment 1, and raw material 17.3g (0.098mol) anthranilic acid is changed into 26.9g (0.098mol) aniline-2,5-disulfonic acid in embodiment 1, and all the other are all mixed with Embodiment 1 is identical, obtains the following purple reactive dyes of structure, and productive rate is 75.1% (according to H acid charging amount calculation). The resulting dye was purified by multiple recrystallizations from a mixture of ethanol and water (2:1), and its infrared spectrum was shown in figure 2 , the data are as follows: 3442.2, 1550.2, 1476.0, 1382.3, 1326.9, 1183.7, 1301.5, 1182.9, 1126.8, 1033.3, 1007.7, 902.0, 802.1cm -1 .

[0060]

Embodiment 3

[0062] The synthetic method of present embodiment active dye is the same as embodiment 1, and the raw material 17.3g (0.098mol) anthranilic acid is changed into 27.5g (0.098mol) 4-ethyl sulfate sulfone aniline in embodiment 1, and all the other are all the same as the implementation Example 1 is identical, obtains the following purple reactive dyes of structure, and productive rate is 76.9% (according to H acid charging amount calculation). The resulting dye was purified by multiple recrystallizations from a mixture of ethanol and water (2:1), and its infrared spectrum was shown in image 3 , the data are as follows: 3423.5, 1544.5, 1475.7, 1419.7, 1382.1, 1326.1, 1175.8, 1075.8, 1032.6, 957.5, 901.7, 795.2cm -1 .

[0063]

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Abstract

The invention relates to a purple active dye based on triazo-chromogenic body, and preparation and application of same. The structure of the active dye is represented as the formula (I). The preparation includes: preparing a first-condensation liquid, preparing a coupling liquid, preparing diazo salt of a second-condensation liquid, preparing an acidic coupled product, and preparing the purple active dye. The purple active dye has novel structure and color, is high in chromogenic intensity, is free of color staining when being used for patterning and dyeing a cotton fabric, and has excellent lifting force and color fastness. By introducing red and blue chromogenic bodies to the molecule, the dye has an intramolecular color combining effect, so that a problem of poor compatibility during compounding of single-color dyes.

Description

technical field [0001] The invention belongs to the field of reactive dyes and their preparation and application, in particular to a purple reactive dye based on trisazo polychromophore and its preparation and application. Background technique [0002] Reactive dyes have the advantages of bright color, excellent color fastness to wet treatment, low synthesis cost, wide spectrum and wide application range. Especially in recent years, with the strengthening of people's awareness of environmental protection, reactive dyes have gradually replaced direct dyes, vat dyes, ice dyes and sulfur dyes on the market due to their advantages of not containing carcinogenic aromatic amines in their structures, and their application on cellulose fibers been continuously expanded. With the increase of people's demand for new shades of shades, printing fabrics with a complete color spectrum can be obtained by using monochromatic shades or dyes mixed with different shades to print fibers. As a...

Claims

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Application Information

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IPC IPC(8): C07D251/50C09B62/513D06P1/382D06P3/66
CPCC07D251/50C09B62/513D06P1/382D06P3/663
Inventor 高爱芹谢孔良张红娟侯爱芹
Owner DONGHUA UNIV
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