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Water-repellent oil-repellent superfine fiber synthetic leather and preparation method thereof

A superfine fiber, water- and oil-repellent technology, applied in textiles and papermaking, etc., can solve the problems of poor water- and oil-repellent effect, poor water-washing effect, increased energy consumption of products, rust of iron equipment, etc. Water and oil repellent effect, simple process, low energy consumption effect

Inactive Publication Date: 2012-11-28
HUAFON MICROFIBER SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The microfiber leather prepared by this method has poor water-repellent and oil-repellent effects, and the water-repellent and oil-repellent agent itself needs to be stably dispersed in water by adding a certain amount of hydrophilic substances or groups, which will also reduce Water and oil repellent effect, on the other hand, in the process of water and oil repellent treatment, a large amount of water will be evaporated, which will greatly increase the energy consumption of the product and make ordinary iron equipment rust

Method used

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  • Water-repellent oil-repellent superfine fiber synthetic leather and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] (1) Dry the superfine fiber synthetic leather through an environment of 50°C at a speed of 0.1 m / s;

[0032] (2) Use compressed air with a pressure of 0.01atm to clean the surface of the dried microfiber synthetic leather to remove impurities such as dust and solid particles on the surface;

[0033] (3) Spray 30 g / m2 of ethanol on the surface of the cleaned microfiber synthetic leather;

[0034] (4) Then apply atmospheric pressure plasma to treat the surface of synthetic leather, the treatment conditions are:

[0035] ①Gas flow rate of plasma generator: 0.05 L / min

[0036] ②The plasma gas is: CF 4 plasma gas

[0037] ③Plasma generator power: 10 watts

[0038] ④Nozzle temperature: 50℃

[0039] ⑤The distance from the nozzle to the treated object: 0.1mm

[0040] ⑥The moving speed of microfiber leather during plasma treatment is: 1mm / min

[0041] The superfine fiber synthetic leather after the above treatment has a good water repelling effect, and the contact angle o...

Embodiment 2

[0043] (1) Dry the microfiber synthetic leather through an environment of 130°C at a speed of 12 m / s;

[0044] (2) Use compressed air with a pressure of 0.3atm to clean the surface of the dried microfiber synthetic leather to remove impurities such as dust and solid particles on the surface;

[0045] (3) Spray 10 g / m2 of C5-18-perfluoroalkane on the surface of the cleaned microfiber synthetic leather;

[0046] (4) Then apply atmospheric pressure plasma to treat the surface of synthetic leather, the treatment conditions are:

[0047] ①Gas flow rate of plasma generator: 0.5 L / min

[0048] ②Plasma gas: CF 4 Plasma Gas and CH 2 CF 2 Plasma gas gas mixture, volume ratio: 1:1

[0049] ③Plasma generator power: 500 watts

[0050] ④Nozzle temperature: 120℃

[0051] ⑤The distance from the nozzle to the treated object: 6mm

[0052] ⑥The moving speed of microfiber leather during plasma treatment: 2m / min

[0053] The superfine fiber synthetic leather after the above treatment has a ...

Embodiment 3

[0055] (1) Dry the superfine fiber synthetic leather through an environment of 160°C at a speed of 20 m / s;

[0056] (2) Use compressed air with a pressure of 0.5 atm to clean the surface of the dried microfiber synthetic leather to remove impurities such as dust and solid particles on the surface;

[0057] (3) Spray 30 g / m2 of perfluoroalkyl iodide on the surface of the cleaned microfiber synthetic leather;

[0058] (4) Then apply atmospheric pressure plasma to treat the surface of synthetic leather, the treatment conditions are:

[0059] ①Gas flow rate of plasma generator: 10 liters / minute

[0060] ②Plasma gas is CH 2 CF 2

[0061] ③Plasma generator power: 1000 watts

[0062] ④Nozzle temperature: 160℃

[0063] ⑤The distance from the nozzle to the treated object: 10mm

[0064] ⑥The moving speed of microfiber leather during plasma treatment: 5m / min

[0065] The superfine fiber synthetic leather after the above treatment has a good oil repelling effect, and the contact a...

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PUM

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Abstract

The invention discloses water-repellent oil-repellent superfine fiber synthetic leather and a preparation method thereof. The preparation method comprises the following steps of: (1) coating a chemical substance containing a water-repellent oil-repellent group on the surface of the superfine fiber synthetic leather; and (2) drying the product obtained in the step (1) through plasma gas, thus obtaining the water-repellent oil-repellent antifouling polyurethane superfine fiber synthetic leather. The prepared superfine fiber synthetic leather has excellent water-repellent oil-repellent effects and the characteristic of washing resistance. In addition, the preparation method has the advantages of low energy consumption and simple process.

Description

technical field [0001] The invention relates to a polyurethane superfine fiber synthetic leather and a manufacturing method thereof. Background technique [0002] With the increasing application fields of polyurethane microfiber synthetic leather (abbreviated as microfiber leather), the requirements for its water-repellent, oil-repellent and anti-fouling functions are becoming more and more intense. [0003] Whether the material has the function of water repellency, oil repellency and antifouling is whether water or oil can wet the surface of the solid, and there are two ways to judge whether the water or oil can wet the solid surface: one is by comparing the surface of the solid Critical surface tension and interfacial tension between water or oil and solid. When the critical surface tension of solid surface is less than the surface tension between water or oil and solid, water or oil cannot wet the surface of the solid, indicating that the solid has water and oil repellenc...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/14D06N3/00
Inventor 吴勇王贺玲孙向浩刘勇胜杜明兵刘国韩芹
Owner HUAFON MICROFIBER SHANGHAI
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