Fluoride-free water-repellent textile fabric finishing method based on ultraviolet light curing reaction

A curing reaction, fluorine-free water-repellent technology, applied in fiber treatment, plant fibers, textiles and papermaking, etc., can solve the problems of high price of fluorine-containing mercaptans, poor fastness of finishing agents, not resistant to washing, etc., to achieve water repellency The effect is obvious, the operation is simple, and the effect of washing fastness is high

Inactive Publication Date: 2017-04-26
DONGHUA UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantage of this method is that the finishing agent has poor fastness, is not resistant to washing, and the fluorine-containing mercaptan is expensive

Method used

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  • Fluoride-free water-repellent textile fabric finishing method based on ultraviolet light curing reaction
  • Fluoride-free water-repellent textile fabric finishing method based on ultraviolet light curing reaction
  • Fluoride-free water-repellent textile fabric finishing method based on ultraviolet light curing reaction

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] Use 3-mercaptopropyltriethoxysilane to modify the cotton fabric, and react with vinyl POSS and mercaptosilane to make the cotton have good water repellency. The specific steps are:

[0043] (1) Pre-processing stage:

[0044] ①Prepare 15g / L of sodium hydroxide and 7g / L of Pingping O solution (solvent is water), and wash the cotton fabric for 20min at 70°C;

[0045] ②Prepare 5wt% ethyl acetate solution of 3-mercaptopropyltriethoxysilane, put the roughened cotton fabric into the above solution, seal the mouth of the beaker with a film, place it in a constant temperature magnetic stirring water bath, and vibrate at 25°C 2 hours of processing;

[0046] ③Take out the cotton fabric, wash it thoroughly in distilled water, and dry it under vacuum at 60°C;

[0047] (2) Finishing stage:

[0048] ①Prepare dichloromethane solutions of vinyl POSS and 3-mercaptopropyltriethoxysilane with a mass concentration of 1wt%, fully ultrasonically oscillate, and then add 0.1wt% of 2,2-dimeth...

Embodiment 2

[0052] Use 3-mercaptopropyltriethoxysilane to modify the cotton fabric, and react with vinyl POSS and alkyl mercaptan to make the cotton have good water repellency. The specific steps are:

[0053] (1) Pre-processing stage:

[0054] ①Prepare 15g / L of sodium hydroxide and 7g / L of Pyrene O solution (solvent is water), roughen the cotton fabric for 20min at 70°C;

[0055] ②Prepare 5wt% ethyl acetate solution of 3-mercaptopropyltriethoxysilane, put the roughened cotton fabric into the above solution, seal the mouth of the beaker with a film, place it in a constant temperature magnetic stirring water bath, and vibrate at 25°C 2 hours of processing;

[0056] ③Take out the cotton fabric, wash it thoroughly in distilled water, and dry it under vacuum at 60°C;

[0057] (2) Finishing stage:

[0058] ①Prepare dichloromethane solutions of vinyl POSS and dodecanethiol with a mass concentration of 1wt%, fully ultrasonically oscillate, and then add 0.1wt% 2,2-dimethoxy-2-phenylacetophenon...

Embodiment 3

[0062] Use 3-mercaptopropyltriethoxysilane to modify polyester-cotton fabric (65 / 35), and react with vinyl POSS and alkyl mercaptan to make polyester-cotton have good water repellency. The specific steps for:

[0063] (1) Pre-processing stage:

[0064] ①Prepare 15g / L sodium hydroxide and 7g / L Pyrex O solution, roughen the polyester-cotton fabric for 20min at 70°C;

[0065] ②Prepare 5wt% ethyl acetate solution of 3-mercaptopropyltriethoxysilane, put the roughened polyester-cotton fabric into the above solution, seal the mouth of the beaker with a film, and place it in a constant temperature magnetic stirring water bath at 25°C Shock treatment for 2 hours;

[0066] ③Take out the polyester-cotton fabric, wash it thoroughly in distilled water, and dry it under vacuum at 60°C;

[0067] (2) Finishing stage:

[0068] ① Prepare a dichloromethane solution of vinyl POSS and dodecanethiol with a mass concentration of 1wt%, fully ultrasonically oscillate, and then add 0.1wt% of 2,2-di...

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Abstract

The invention relates to a fluoride-free water-repellent textile fabric finishing method based on an ultraviolet light curing reaction. The method comprises the steps that a textile fabric is cleaned and then subjected to sulfydryl modification; vinyl cage-type silsesquioxane and sulfydryl silane or vinyl cage-type silsesquioxane and alkyl sulfhydryl are dissolved into an organic solvent, and ultrasonic oscillation is conducted to obtain a mixed solution; a photoinitiator is added, and ultrasonic oscillation is conducted to obtain a finishing solution; the textile fabric obtained after sulfydryl modification is steeped in the finishing solution, ultraviolet curing, cleanign and drying are conducted, and then the finished textile fabric is obtained. According to the method, operation is easy, the efficiency is high, and under the fluoride-free condition of a finishing agent, the water-repellent effect is obvious, and the treated washable fastness is high.

Description

technical field [0001] The invention belongs to the field of functional finishing of fabrics, in particular to a fluorine-free and water-repellent finishing method for fabrics based on ultraviolet light curing reaction. Background technique [0002] The purpose of water-repellent finishing is to prevent the wetting of the fabric by water, and use the additional pressure of the capillary of the fabric to prevent the penetration of liquid water, but still maintain the breathable and moisture-permeable performance of the fabric. Water-repellent finishing fabrics were first used in the production of military uniforms and protective clothing, and are now widely used in the production of sportswear, travel clothes, travel bags, tents, etc. Perfluorinated finishing agents are widely used in industrial production and consumer life because of their excellent thermal stability, chemical stability, high surface activity and hydrophobic and oleophobic properties. Currently commonly use...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M14/22D06M13/513D06M101/06
CPCD06M14/22C08G77/392D06M13/513D06M2101/06D06M2200/12
Inventor 俞丹王炜孙第
Owner DONGHUA UNIV
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