Preparation method and application of textile ultraviolet-proof finishing agent

A technology of anti-ultraviolet and finishing agent, applied in fiber treatment, plant fibers, textiles and papermaking, etc., can solve the problems of high ultraviolet transmittance, low UPF value, poor washing fastness of fabrics, etc., and achieve good washing fastness. , Excellent washing fastness, improved effect of UV protection

Active Publication Date: 2017-04-26
HANGZHOU TRANSFAR FINE CHEM CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The finishing agent of the invention can endow the fabric with anti-ultraviolet function, and the effect is good, and the treated fabric is soft and comfortable; but the finishing agent is only a simple dispersion, and the treated fabric has the problem of poor washing fastness
Chinese patent (200910153304.0) discloses a wide-band anti-ultraviolet and high light fastness finishing agent and its preparation method and application. Composed of water, made by ball milling or sand milling, and then processed by dyeing, finishing and other methods, the textile has a certain anti-ultraviolet effect, but its UPF value is relatively low, and its ultraviolet transmittance is high.

Method used

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  • Preparation method and application of textile ultraviolet-proof finishing agent
  • Preparation method and application of textile ultraviolet-proof finishing agent

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Take 100 parts of polyoxypropylene diol (Mw=1000), 49 parts of isophorone diisocyanate, 12 parts of N-methyldiethanolamine, 0.5 parts of triethylenediamine, 50 parts of dipropylene glycol dimethyl ether, in 80- React at 100°C for 4-6 hours, then lower the temperature of the prepolymer to 40-60°C, add 6 parts of glacial acetic acid, continue stirring for 30 minutes, and then add 100 parts of N-(ethoxycarbonylphenyl)- Add N'-methyl-N'-phenylformamidine to the above prepolymer and stir evenly to obtain a transparent viscous liquid, then add 683 parts of water to this liquid for emulsification for 1 hour, and finally obtain a stable milky white belt Blu-ray liquid.

[0034] Get this emulsion 50g, dilute to 1000g solution with water, then use cotton fabric (140g / m 2 ) to perform one dipping and one padding (liquid-carrying rate 60-80%), and finally bake at 170° C. for 1 minute to obtain an anti-ultraviolet finished cotton fabric. The UPF value was determined using a textil...

Embodiment 2

[0036] Take 100 parts of polytetramethylene ether glycol (Mw=1000), 75 parts of hexamethylene diisocyanate, 35 parts of N-ethyldiethanolamine, 0.1 part of dibutyltin dilaurate, 60 parts of dipropylene glycol diethyl ether, React at 80-100°C for 4-6 hours, then lower the temperature of the prepolymer to 40-60°C, add 17 parts of glacial acetic acid, continue stirring for 30 minutes, and then add 100 parts of 2-(2H-benzotri Add azol-2-yl)-6-dodecyl-4-methylphenol into the above prepolymer and stir evenly to obtain a transparent viscous liquid, then add 613 parts of water to this transparent viscous liquid for emulsification After 1 hour, a stable opalescent liquid with blue light was finally obtained.

[0037] Get this emulsion 50g, dilute to 1000g solution with water, then use cotton-polyester blended woven fabric (120g / m 2 )-soaking-rolling (with liquid rate 60-80%) finishing solution, and finally baking at 160° C. for 2 minutes to obtain the finished fabric. Then use the tex...

Embodiment 3

[0039]Take 150 parts of polyoxypropylene diol (Mw=2000), 100 parts of isophorone diisocyanate, 35 parts of N-methyldiethanolamine, 0.4 parts of N,N-dimethylcyclohexylamine, N-methylpyrrolidone 50 parts, reacted at 80-100°C for 4-6 hours, then cooled the prepolymer to 40-60°C, added 11 parts of hydrochloric acid, continued to stir for 30 minutes, and then added 100 parts of N-(ethoxy Carbonylphenyl)-N'-methyl-N'-phenylformamidine was added to the above prepolymer and stirred evenly to obtain a transparent viscous liquid, and finally 554 parts of water were added to the transparent viscous liquid to emulsify to obtain Stable opalescent liquid with blue light.

[0040] Get this emulsion 50g, dilute to 1000g solution with water, use cotton nylon blended fabric (120g / m 2 )-soaking-and-rolling (liquid-carrying rate 60-80%) finishing solution, and finally baking at 170° C. for 1 minute to obtain a finished cotton-nylon blended fabric. Use the textile UV protection factor tester (ca...

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Abstract

The invention discloses a preparation method and application of textile ultraviolet-proof finishing agent. The ultraviolet-proof finishing agent on the current market has the problems such as non-ideal ultraviolet-proof effect, bad fastness-to-washing and the like. The preparation method of the textile ultraviolet-proof finishing agent comprises the steps of making low polymer polyhydric alcohol, diisocyanate, hydrophilic chain extender, catalyst and solvent react at the temperature of 70-100 DEG C for 4-8 hours, when mass percentage of isocyanato reduces to 0.5% or below, stopping the reaction to acquire a prepolymer, cooling the prepolymer to 30-60 DEG C, adding a neutralizing agent, stirring the mixture for 15-30 minutes, adding an ultraviolet absorbing agent into the system, continuing to stir until the mixture is uniformly mixed to acquire transparent viscous liquid, adding deionized water into the transparent viscous liquid for emulsification, and finally acquiring stable light yellow nano-emulsion. The clothes treated with the textile ultraviolet-proof finishing agent not only have an excellent ultraviolet-proof function, but also have excellent washing fastness.

Description

technical field [0001] The invention relates to the field of fabric finishing agents, in particular to a preparation method and application of an anti-ultraviolet finishing agent suitable for cotton fabrics, chemical fiber fabrics and cotton and chemical fiber blended fabrics. Background technique [0002] In recent decades, due to human activities and industrial development, especially the increase in the use of Freon, the ozone layer in the earth's atmosphere has been severely damaged, resulting in an ozone layer hole. After the ozone layer is destroyed, the ability to absorb ultraviolet radiation is greatly weakened, and the ultraviolet content in the sunlight reaching the ground continues to increase. Excessive ultraviolet rays have a great impact on the human body, making the human skin lose its ability to resist, prone to burns, erythema or blisters, and in severe cases can induce skin diseases, leading to serious consequences such as skin cancer. Therefore protecting...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/568D06M15/572D06M13/372D06M13/352D06M13/152C08G18/66C08G18/48C08G18/32C08G18/44C08G18/42D06M101/06D06M101/32
CPCC08G18/6655C08G18/6688D06M13/152D06M13/352D06M13/372D06M15/568D06M15/572D06M2101/06D06M2101/32D06M2200/25
Inventor 杨宗约杨小波张文玲何文栋相东旭王胜鹏
Owner HANGZHOU TRANSFAR FINE CHEM CO LTD
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