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Preparation method of gradient-color macromolecule dye

A technology of macromolecular dyes and gradient colors, which is applied in the field of preparation of gradient macromolecular dyes, can solve the problems of high processing difficulty, solvent intolerance, high dye cost, etc., and achieves simple and easy operation, time-saving and cost-saving preparation methods. , the effect of zero waste water discharge

Pending Publication Date: 2019-07-05
浙江材华科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing dye wastewater has high BOD and COD, high salinity, and difficult treatment
Moreover, problems such as workshop equipment manufacturing and complex operation have caused the cost of dyes to be very high.
[0003] Small molecule dyes are widely used in textiles, leather, fur, paper, plastics, rubber, coatings, inks, food colorings, cosmetics, etc., but there are still many shortcomings, such as the toxicity of small molecules, poor fastness, and Insufficient solvent resistance, migration resistance and heat resistance severely limit the application of small molecule dyes in food, ink, paint, fiber, plastic and other coloring materials

Method used

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  • Preparation method of gradient-color macromolecule dye
  • Preparation method of gradient-color macromolecule dye
  • Preparation method of gradient-color macromolecule dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] First add cyanuric chloride to water and stir evenly, water bath at 30-40°C, then add PEG, wherein the molar ratio of cyanuric chloride to PEG is 0.5:1, keep warm in a water bath at 30-40°C, add prepared 40% sodium acetate The solution is kept at pH=3.0-3.5 and reacted for 3-4 hours, and the reaction is completed to obtain a macromolecular precursor. Then add the yellow small molecule chromogenic compound formula (1), wherein the mol ratio of the small molecular chromogenic compound to cyanuric chloride is 0.5:1, then add the colorless wood lacquer wherein, wherein the wood lacquer and the small molecular chromogenic compound The weight ratio is 5-6:1, stir for 30 minutes until evenly dispersed. Evenly spread the evenly dispersed mixture on the prepared wooden board with a thickness of 20-30μm, put it in an oven at 80-90°C and bake for 1-2 hours, take it out and cool it, and the reaction is completed to obtain a blue paint.

Embodiment 2

[0031] First add cyanuric chloride to water and stir evenly, water bath at 30-40°C, then add PEG, wherein the molar ratio of cyanuric chloride to PEG is 0.5:1, keep warm in a water bath at 30-40°C, add prepared 40% sodium acetate The solution is kept at pH=3.0-3.5 and reacted for 3-4 hours, and the reaction is completed to obtain a macromolecular precursor. Then add the blue three-color small-molecule chromogenic compound formula (2), wherein the mol ratio of the small-molecule chromogenic compound to cyanuric chloride is 0.95:1, then add colorless wood lacquer wherein, wherein wood lacquer and small-molecule chromogenic compound The weight ratio of the color compound is 5-6:1, stir for 30 minutes until uniformly dispersed. Spread the evenly dispersed mixture evenly on the prepared wooden board with a thickness of 20-30μm, put it in an oven at 80-90°C and bake for 1-2 hours, take it out to cool, and the reaction is completed to obtain a purple-red paint.

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Abstract

The invention discloses a preparation method of a gradient-color macromolecule dye and relates to the technical field of fine chemical engineering. The preparation method comprises the steps that cyanuric chloride and polyethylene glycol (PEG) are evenly dispersed in a water phase, a PH adjuster is used for adjusting the PH to 3-3.5, a reaction is conducted for 3-8 hours at 30-40 DEG C, then the reaction is ended, and a macromolecule precursor is obtained; the macromolecule precursor and a micromolecule color development compound are evenly dispersed in acetone or water, then a wooden board oran iron plate is coated with the mixture, roasting is conducted at 60-150 DEG C, after a color change reaction is conducted for 2-20 hours, the reaction is ended, and the non-temperature-inversion color change macromolecule dye is obtained. The preparation method for the macromolecule dye is simple, has the macromolecule safety characteristic that macromolecules are not easily absorbed by human body cells and is mainly applied to the field of coatings.

Description

technical field [0001] The invention belongs to the technical field of fine chemicals, and in particular relates to a preparation method of gradient color macromolecular dyes. Background technique [0002] The continuous development of society promotes the development of the chemical industry, but industrial wastewater is also increasing in the process of development. The continuous development of society promotes the development of the chemical industry, but industrial wastewater is also increasing in the process of development. With the continuous growth of the dye industry, its production wastewater has become a major source of water pollution. According to the records of C.I. (ColorIndex) in the United States, there are tens of thousands of dyes at present. my country is a major producer of dyestuffs. At present, various dyestuffs in my country have reached 900,000 tons, and the output of dyestuffs accounts for about 60% of the world. The existing dye wastewater has h...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08G65/334C08G65/333C09D171/02C09D7/41
CPCC08G65/333C08G65/33313C08G65/3348C09D171/02C09D7/41
Inventor 陈军李怡霞项羽曹苏毅李军配吴祥松杨文东
Owner 浙江材华科技有限公司
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