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Yellow dye, as well as preparation method and application thereof

A technology of yellow dyes and dyes, applied in dyeing methods, azo dyes, organic dyes, etc., can solve the problems of large average particle size of dyes, low coloring rate, high salt content, etc., and achieve bright color and low salt content , The effect of low raw material cost

Active Publication Date: 2012-06-20
TIANJIN DEK CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Digital inkjet printing puts forward higher requirements on the quality of the ink, so the viscosity, surface tension, particle size, pH value, and conductivity of the ink must be in a specific range, so the dyes used in the preparation of the ink have a correspondingly higher requirement. Requirements, such as the dye strength of the ink, high water and sunlight fastness and good compatibility of dye color matching, etc., but the current inkjet dyes have a large average particle size, high salt content, low coloring rate and fast Low degree, can not meet the needs of inkjet printing

Method used

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  • Yellow dye, as well as preparation method and application thereof
  • Yellow dye, as well as preparation method and application thereof
  • Yellow dye, as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] a. Preparation of condensate

[0044] a-1-1, the preparation of the shrinkage

[0045] Add a small amount of bottom water to the beaker, 25.3 grams of 100% aniline-2,5 disulfonic acid, and use NaHCO 3 Neutralize pH=6.0-7.0, for later use;

[0046] Take another beaker, add a small amount of ice water and ice grinding aid in the beaker, then add 18.5 grams of 100% cyanuric chloride, and mix the materials evenly. Pour aniline-2,5 disulfonic acid solution, and react for 4 hours at T=0-5°C, pH=4.0-5.0 to obtain a condensate, add 2,5-diaminobenzene to the condensate 21.0 grams of sodium sulfonate, adjust T=30-40°C, pH=5.0-6.0, and react for 6 hours. cool down, spare,

[0047] a-1-2. Add a small amount of ice water and ice grinding aid to the beaker, and then add 18.5 grams of cyanuric chloride to mix the materials evenly. Pour into the final condensation solution of a-1-1, T=0-5°C, pH=4.0-5.0, dropwise, then react for 5 hours, add 2,4-diaminobenzenesulfonic acid to the c...

Embodiment 2

[0060] a. Preparation of condensate

[0061] a-1-1. Add a small amount of bottom water and 10.5 g of 100% diethanolamine to a beaker, and neutralize it with 30% HCL to pH=7.0-8.0 to obtain a diethanolamine solution for later use.

[0062] Take another beaker, add a small amount of ice water and ice grinding aid in the beaker, then add 18.5 grams of 100% cyanuric chloride, and mix the materials evenly. Add diethanolamine solution dropwise, and react for 4 hours under the conditions of T=0-5°C and pH=4.0-5.0 to obtain a condensate, and add 21.0 g of sodium 2,5-diaminobenzenesulfonate to the condensate, Adjust T=30-40°C, pH=5.0-6.0, and react for 6 hours. cool down, spare,

[0063] a-1-2. Add a small amount of ice water and ice grinding aid in a beaker, and then add 18.5 grams of 100% cyanuric chloride to mix the materials evenly. Pour the final condensation solution obtained in a-1-1, maintain T=0-5°C, pH=4.0-5.0, then react for 5 hours, add 21.0 grams of sodium 2,4-diaminobe...

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Abstract

The invention discloses a yellow dye, as well as a preparation method and an application thereof. The dye has a structural formula (I) as shown in the specification. The yellow reactive dye prepared by utilizing the method has higher reactivity in dyeing and printing, excellent solubility, bright and beautiful colors, good light fastness performance, and extremely high absorbability and color fixation rate.

Description

technical field [0001] The invention relates to a reactive dye and its preparation method and application, in particular to a yellow reactive dye, its preparation method and its application in ink-jet printing and dyeing. Background technique [0002] The development process of textile printing technology is ancient and long. With the rapid development of textile printing and dyeing industry, printing output is also increasing. The emergence of digital printing technology has brought a major technological revolution to the textile industry. Digital printing is a green production method, and the printing process does not use water. , no need to prepare color paste, no waste dye liquid color paste, low noise. Digital inkjet printing puts forward higher requirements on the quality of the ink, so the viscosity, surface tension, particle size, pH value, and conductivity of the ink must be within a specific range, so the dyes used in the preparation of the ink have a corresponding...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09B62/825D06P3/58D06P3/02D06P1/384
Inventor 张兴华李荣才许建
Owner TIANJIN DEK CHEM
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