Antibacterial cation reactive dye and preparation and application thereof

A technology of reactive dyes and cations, which is applied in the field of antibacterial cationic reactive dyes and their preparation and application, can solve the problems of dyes losing antibacterial properties, easy hydrolysis, and lack of affinity for cotton fibers, etc., and achieve excellent color fastness, high affinity, and good The effect of color fastness

Inactive Publication Date: 2010-07-07
DONGHUA UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these dyes lack affinity for cotton fibers, and because the quaternary ammonium salt in the molecule is combined w

Method used

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  • Antibacterial cation reactive dye and preparation and application thereof
  • Antibacterial cation reactive dye and preparation and application thereof
  • Antibacterial cation reactive dye and preparation and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0031] Dissolve 8.33g of polyethyleneimine (30% aqueous solution) with a degree of polymerization of 1550 to 1650 in 100mL of water, keep the temperature at 25°C, and add 3.07g (5mmol) of 3-phenylazo-4-hydroxy-5-[( 4,6-dichloro)-1,3,5-triazine]amino-2,7-sodium naphthalene disulfonate, TLC (n-propanol:concentrated ammonia water=3:1, v / v) monitoring the reaction to the starting material The dot disappears, add 300mL acetone and stir to precipitate a precipitate, after standing still, filter to obtain a red polymer dye, referred to as XPEI. The obtained product was washed with water and acetone (volume ratio 1:3), and the product was vacuum-dried in an oven at 30° C. for more than 12 hours, and the yield was 91%.

[0032] Wash the product of the above reaction and then dissolve it in 120mL of water, add it to a 250mL three-neck flask, add 8.5g of propylene oxide dropwise with a dropping funnel, maintain the temperature at 0-5°C with an ice-water bath, and continue the reaction fo...

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Abstract

The invention relates to an antibacterial cation reactive dye, which comprises 3-phenyl-azo-4-hydroxy-5-[(4,6-dichloro)-1,3,5-triazine]amino-2,7-naphthalene disulfonate as a dye matrix, monochlorotriazine as a reactive group and a long carbon chain quaternary ammonium structure as a water soluble group. The chemical structure is as follows. The preparation method comprises the following steps: stirring and adding the 3-phenyl-azo-4-hydroxy-5-[(4,6-dichloro)-1,3,5-triazine]amino-2,7-naphthalene disulfonate to a polyethylene imine water solution, and isothermally reacting for 2-5 hours to obtain XPEI; then reacting with propylene oxide while stirring at a temperature of 0-5 DEG C for 5-8 hours to obtain TXPEI; and finally adding benzyl chloride, stirring and reacting at a constant temperature of 48-52 DEG C for 6-8 hours, layering the reaction liquid after reaction, and removing unreacted benzyl chloride by extraction to obtain the antibacterial cation reactive dye QXPEI. The antibacterial cation reactive dye has good antibacterial effect, good color fastness, good application prospects on dyeing and antibacterial finish of various fibers, simple preparation method, low cost, environment protection of raw materials, small environment pollution and industrial application prospects.

Description

technical field [0001] The invention belongs to the fields of dye synthesis, textile dyeing and finishing, and particularly relates to an antibacterial cationic reactive dye and its preparation and application. Background technique [0002] Textile dyeing and finishing are two important wet processing processes, while traditional textile dyeing and finishing are carried out separately, which has the disadvantages of high cost, high energy consumption and large amount of sewage discharge. The dyeing and finishing technology that combines dyeing and functional finishing in one bath is of great significance for reducing production costs, saving energy, reducing waste water discharge, and protecting the ecological environment. Therefore, many experts at home and abroad have carried out a lot of research in this field, and have achieved certain results in the research of dyeing, antistatic, flame retardant, anti-ultraviolet, shrink-proof and anti-wrinkle finishing in one bath. H...

Claims

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Application Information

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IPC IPC(8): C09B62/085C09B67/24D06P3/66D06P3/02D06P1/382D06M15/61D06M101/06D06M101/12
Inventor 赵涛周志成
Owner DONGHUA UNIV
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