Active yellow dye and preparation and application thereof

A technology of reactive yellow and dyes, applied in the direction of reactive dyes, azo dyes, organic dyes, etc., can solve the problems of low actual utilization rate, large energy consumption, high water consumption for dyeing, etc.

Active Publication Date: 2017-06-13
TAIXING JINYUN DYESTUFF
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has high washing fastness, but the actual utilization rate of the common reactive dyes in the market is not high during the dyeing process, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, High energy consumption, need to add a lot of salt to assist dyeing

Method used

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  • Active yellow dye and preparation and application thereof
  • Active yellow dye and preparation and application thereof
  • Active yellow dye and preparation and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0045] Embodiment 1: the preparation of formula (I-1) compound

[0046] (1) Diazo, coupling reaction

[0047] In a 250ml beaker, add 20 parts (parts by mass) of ice, 24.3 parts of 30% hydrochloric acid, 17.3 parts of 2-aminobenzenesulfonic acid, ice grinding and beating for 30min, slowly add 6.97 parts of sodium nitrite to generate diazonium salt, and wait until the sodium nitrite is completely Stir for 1 hour after adding, and use sulfamic acid to eliminate the slight excess of sodium nitrite; slowly add the diazonium salt dropwise to 10.8 parts of m-phenylenediamine, adjust the pH to 4‐5.0 with baking soda while adding, and finish adding After continuing to react for 2 hours, the diazonium salt disappeared completely while maintaining the system temperature at 0-10°C.

[0048]

[0049] (2) Primary condensation of coupling components and cyanuric fluoride

[0050] In a 1000ml flask, add 50 parts of ice to the above coupling solution, slowly add 13.5 parts (percentage) of...

Embodiment 2

[0055] Embodiment 2: the preparation of formula (I-2) compound

[0056] (1) Diazo, coupling reaction

[0057]In a 250ml beaker, add 20 parts of ice, 24.3 parts of 30% hydrochloric acid, 36.1 parts of sulfonated para-ester, ice mill and beat for 30 minutes, slowly add 6.97 parts of sodium nitrite to form diazonium salt, and stir for 1 hour after the sodium nitrite is completely added , use sulfamic acid to eliminate the slight excess of sodium nitrite; slowly drop the diazonium salt into 15.1 parts of metaurea, adjust the pH=3.5-5.0 with sodium bicarbonate while adding, continue to react for 2 hours after the addition, diazonium The salt disappeared completely while maintaining the system temperature at 0-10°C.

[0058]

[0059] (2) Primary condensation of coupling components and cyanuric fluoride

[0060] In a 1000ml flask, add 50 parts (parts by mass) of ice to the above coupling solution, slowly add 13.5 parts (fold) cyanuric fluoride dropwise to the coupling solution, ...

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Abstract

The invention discloses an active yellow dye and preparation and application thereof. The active yellow dye has a structure shown in formula (I). The active yellow dye has the advantages that the structure of monomer compound is novel, the property is excellent, the color fixation rate is good, and the color fastness rate is high; the stability is realized, the washing-resistant, abrasion-resistant and sun exposure-resistant property are good, and the binding stability with fibers is good; during dyeing, the usage amount of water is reduced, the dying duration is short, the consumption of energy sources is decreased, and the usage amount of salt is reduced; a finished product has excellent colorful degree, the production cost is low, and the active yellow dye can be popularized and applied in a large scale way.

Description

technical field [0001] The invention belongs to the field of fine chemicals, and in particular relates to a reactive dye, in particular to a reactive yellow dye, a preparation method thereof and an application in cotton fiber printing and dyeing. Background technique [0002] Reactive dyes are also called reactive dyes. The molecule contains chemically active groups, which can react with cotton, wool and other fibers to form covalent bonds in aqueous solution. It has high washing fastness, but the actual utilization rate of the common reactive dyes in the market is not high during the dyeing process, and a large part is hydrolyzed; in addition, in the traditional medium and high temperature dyeing, the dyeing water consumption is very high, Energy consumption is large, and a large amount of salt is needed to assist dyeing. Therefore, green and environmentally friendly reactive dyes with high activity and low salt are still the mainstream of current research and development...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/09C09B62/513C09B67/36C09B67/26D06P1/382D06P3/66
CPCC09B62/09C09B62/513C09B67/0073C09B67/0079D06P1/382D06P3/008D06P3/663
Inventor 苏金奇鞠苏华黄磊王国民张卫平陈爱民王兵赵卫国
Owner TAIXING JINYUN DYESTUFF
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