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Orange reactive dye compound and application thereof

A compound, orange dye technology, used in reactive dyes, azo dyes, organic dyes, etc., can solve problems such as use safety violations, achieve excellent sweat-light resistance, high dyeing rate and color fixing rate, color and luster Bright and full effect

Inactive Publication Date: 2014-10-29
ZHEJIANG KEYONG CHEM CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The dyes and their reaction by-products detached from textiles will also directly contact the skin, causing harm to the safety of the human body

Method used

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  • Orange reactive dye compound and application thereof
  • Orange reactive dye compound and application thereof
  • Orange reactive dye compound and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] (1) Diazotization: Add 36.1g of sulfonated para-ester (i.e. 4-β-ethylsulfone sulfate aniline-2-sulfonic acid) to 150mL of water and stir evenly, cool to 0-5°C, add 6.5g of 31% (w / w) hydrochloric acid, beating for 30min, add 24.5g of 30% (w / w) sodium nitrite solution dropwise from the liquid surface at 0~5℃, stir at this temperature for 1 hour, add dropwise and During the reaction process, a slight excess of sodium nitrite is maintained, and excess sodium nitrite is eliminated with sulfamic acid to obtain 4-β-ethylsulfone sulfate aniline-2-sulfonic acid diazonium solution.

[0037] (2) Diazotization: Add 28.1g of p-ester (i.e. p-(β-hydroxyethylsulfone sulfate) aniline) to 150mL of water and stir evenly, then cool to 0-5°C, maintain 0-5°C slowly Slowly add 11.5g of 31% hydrochloric acid and 24.5g of 30% sodium nitrite dropwise, stir at this temperature for 1 hour, use sulfamic acid to eliminate excess sodium nitrite, and obtain the diazonium solution of para-ester.

[00...

Embodiment 2～8

[0046] According to the preparation method described in Example 1 or a similar method, the difference is: the arylamine 1 and arylamine 2 in Table 1 are used to replace the arylamine in step (1) and step (2) respectively to carry out diazo The hydrazone dyes shown in Table 1 can be prepared, and the dyed fabrics appear bright orange.

[0047] Table 1

[0048]

[0049]

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PUM

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Abstract

The invention provides an orange reactive dye compound (I) with a hydrazone type structure and an application thereof. The compound not only has excellent perspiration-light fastness but also has extremely high fixation rate, better dye depth and better levelling property and wet processing fastness, and the non-fixation part is easy to wash out. When applied to printing and dyeing of fiber materials, the reactive dye compound has excellent perspiration-light resistance, high dye uptake and fixation rate, good improving property, levelling property and dyeing stability and bright and full color.

Description

(1) Technical field [0001] The invention relates to a reactive orange dye compound, in particular to a reactive orange dye compound with a hydrazone structure and application thereof. (2) Background technology [0002] The color fixation rate and wet rubbing fastness of fabrics dyed with reactive dyes have always been the focus and difficulty in printing and dyeing production, generally only 50-80%, resulting in the unfixed dyes on the fabrics must be fully washed and soaped to remove, not only caused Waste of resources, and reduce the color fastness of textiles, especially the wet treatment fastness, and there is intermolecular force between unfixed dyes and cotton fibers, and there are still some residues on the fabric after soaping. At the same time, some reactive dyes and The covalent bonds between cotton fibers are affected by external conditions, and are prone to bond breaking and hydrolysis, which will cause the color fastness of dyed fabrics to decrease. [0003] In...

Claims

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Application Information

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IPC IPC(8): C09B62/513D06P1/384D06P3/66
Inventor 欧其王晓红汪仁良
Owner ZHEJIANG KEYONG CHEM CO LTD
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