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A kind of preparation method of polyester dye with antibacterial property

A polyester and dye technology, applied in the field of polyester dye preparation, can solve the problems of harmfulness to human body, pollution of printing and dyeing wastewater, low water solubility, etc., and achieve the effects of eliminating static electricity, improving water solubility, and improving antibacterial properties

Active Publication Date: 2021-11-23
绍兴华南纺织印染有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The object of the present invention is to provide a kind of preparation method of the polyester dye with antibacterial property, take disperse dye as matrix, introduce anion and cation simultaneously on the molecular chain of disperse dye, make dye have amphoteric, and then improve the water solubility of dye, When dyeing, the dyes are directly dissolved by water to prepare water-based dyes, which solves the problem that the existing disperse dyes have low water solubility and are dissolved by organic matter during use, so that the prepared dyeing slurry contains organic solvents. Not only is it harmful to the human body , and the problem of environmental pollution after printing and dyeing wastewater is discharged

Method used

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  • A kind of preparation method of polyester dye with antibacterial property
  • A kind of preparation method of polyester dye with antibacterial property
  • A kind of preparation method of polyester dye with antibacterial property

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The specific preparation process of thiocarcinyl chloride is as follows:

[0023] Step 1: After the thiourea was dissolved in the reaction, the reaction kettle was added, stirred under an ice water bath, and then epoxy chloropropane was added thereto. 0.82, the reaction was stirred at an ice water bath for 2-3h to a normal temperature stirring reaction for 3-4 h, and then the resulting product was separated, and the obtained organic phase was dried, distilled, resulting in a cyculfide compound;

[0024] Step 2: Add a cyclooulfurium compound prepared in 10G step 1 to the reaction kettle, then adding 600 ml of concentration of 2 mol / L, a hydrochloric acid solution, stirring at room temperature for 1-2 h, then evapressive distillation to give sioane Kechlorine.

Embodiment 2

[0026] The specific preparation process of alkyl chloride is as follows: 100 g of epoxy chloropropane is added to the reactor, then a 600 ml concentration of 2 mol / L is added thereto, and the reaction is stirred at normal temperature for 1-2 h, then evaporandar, then evaporandar Kechlorine.

Embodiment 3

[0028] A method of preparing a polyester dye having antimicrobial properties, the specific preparation process is as follows:

[0029] In the first step, 100 g of dispersion pigment was added to 1 L acetone solution and dissolved, then pH = 2 of the hydrochloric acid regulating solution was added thereto, and then 23 g of the tama acid anhydride was added to the reaction vessel, and the reaction was stirred at room temperature for 7-8 h, then evaporate product After the solvent acetone in which the solvent acetone was removed, the temperature was warmed to 100-110 ° C and mixed 10-12 min and filtered, and the solid product was an unsaturated dispersion pigment, the reaction structure formula is as follows;

[0030]

[0031] In the second step, the unsaturated dispersion pigments prepared in 100 g of the first step and 900 ml of acetone were simultaneously dissolved in the reaction kettle, and 53 g of ethanol sodium ethanol and 16 g of hydroxyl phenylidecetone were added to the r...

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Abstract

The invention discloses a preparation method of polyester dye with antibacterial properties. The specific preparation process is as follows: react the dispersed pigment with crotonic anhydride to obtain an unsaturated dispersed pigment, and prepare the prepared unsaturated dispersed pigment with o-hydroxyacetophenone and methyl Acrylic acid 3-sulfonate propyl ester potassium salt is reacted to obtain anionic disperse pigment, then the anionic disperse pigment is added into water and stirred to dissolve, and then thioalkyl chloride is added therein to react to obtain amphoteric polyester dye. The present invention uses disperse dyes as a matrix, introduces anions and cations into the molecular chain of disperse dyes at the same time, makes the dyes amphoteric, further improves the water solubility of the dyes, makes the dyes dissolve in water, and prepares water-based dyes, which solves the problem of existing Due to their low water solubility, the disperse dyes are dissolved by organic matter during use, so that the organic solvents contained in the prepared dyeing slurry are not only harmful to the human body, but also pollute the environment after the printing and dyeing wastewater is discharged.

Description

Technical field [0001] The present invention relates to the field of dye preparation, and it relates to a method for preparing a polyester dye having antimicrobial properties. Background technique [0002] The dispersion dye molecules are small, and the structurally free of water-soluble groups are dyed in the dyeing liquid by means of the action of the dispersant. It can contain polyester fibers, acetic fibers, and polyamide fibers, becomes a dedicated dye of polyester, but since the water solubility is small, dissolve by organic matter is used, which contains organic solvents in the prepared dyeing slurry not only harmful to the human body And the printing and dyeing wastewater is contaminated after the environment, and the existing polyester is composed of a short fatty chain, an ester group, a benzene ring, and an endol hydroxyl group. In addition to the presence of two endol hydroxyl groups, there is no other polar group, and the polyester is easily adsorbed after rubbing th...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C09B59/00C07C319/02C07C323/03C07D331/02D06P1/16D06P3/54
CPCC07C319/02C07D331/02C09B59/00C09B68/4235C09B68/4253D06P1/16D06P3/54C07C323/03
Inventor 孙佩
Owner 绍兴华南纺织印染有限公司