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Waterproof breathable fabric and preparation method thereof

A breathable and fabric technology, applied in the field of textile fabrics, can solve the problems of stuffy heat, poor inner warmth and comfort, and reduce fabric air permeability, etc., and achieve the effects of increased breaking strength, excellent flame retardancy, and good air permeability

Inactive Publication Date: 2019-06-28
广州市番禺区港棉制衣厂
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The fabrics currently on the market have the function of water repellency, that is, the function of impermeability to rainwater. Most of them are coated on the surface of polyester fabrics, thus reducing the air permeability of the fabrics, making them feel stuffy when worn, and the inner layer has poor warmth retention and comfort.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Waterproof breathable fabric and preparation method thereof

Examples

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Comparison scheme
Effect test

preparation example Construction

[0054] Preparation of modified nano silica:

[0055] (1) Add 6 mL of tetraethyl orthosilicate (TEOS) to 12 mL of absolute ethanol, then add 1.2 mL of HCl solution with a concentration of 2 mol / L dropwise, keep stirring the mixed solution in a water bath at 55°C for 4 hours, and cool After reaching room temperature, slowly add 0.5 mL of ammonia solution with a concentration of 2 mol / L, and stir at room temperature for 5 h;

[0056] (2) Add 0.6mL dimethyldiethoxysilane dropwise, react at a constant temperature of 55°C for 22h, wash the obtained product with toluene and absolute ethanol, centrifuge 3 times, and dry to obtain the modified Sexual nano silica;

[0057] Dimethyldiethoxysilane is grafted on the silica through the hydroxyl reaction on the surface of the silica. This organic segment increases the dispersion of nano-silica in the film matrix, which is conducive to the preparation of uniform Functional thin film coatings also improve the physical or chemical interaction...

Embodiment 1

[0059] Preparation of modified viscose fiber:

[0060] (1) Use 0.1mol / L HCl aqueous solution to adjust the pH value of the viscose spinning stock solution to 6-7, add phosphoric acid, stir at 100r / min for 20min, add sodium carboxymethylcellulose, and continue stirring until completely dissolved;

[0061] (2) Vacuum static defoaming for 24 hours to obtain a composite spinning solution, which is squeezed through a spinneret into a coagulation bath to solidify into filaments, stretched 1.5 times, washed with water, dried at 115°C and coiled Modified viscose fiber is obtained after winding; the composition of the coagulation bath is sulfuric acid 90g / L, sodium sulfate 300g / L, zinc sulfate 15g / L, the temperature of the coagulation bath is 65°C, and the bath length is 2m;

[0062] Wherein, the mass ratio of viscose spinning dope, sodium carboxymethyl cellulose and phosphoric acid is 100:3:0.6.

Embodiment 2

[0064] Preparation of modified nano silica:

[0065] (1) Add 6 mL of tetraethyl orthosilicate to 12 mL of absolute ethanol, then add 1.2 mL of HCl solution with a concentration of 2 mol / L dropwise, keep stirring the mixed solution in a water bath at 55°C for 4 hours, and cool to room temperature. Then slowly add 0.5 mL of ammonia solution with a concentration of 2 mol / L, and stir at room temperature for 5 h;

[0066] (2) Add 0.6mL dimethyldiethoxysilane dropwise, react at a constant temperature of 55°C for 22h, wash the obtained product with toluene and absolute ethanol, centrifuge 3 times, and dry to obtain the modified Nano-silica.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a waterproof breathable fabric which comprises a comfortable inner layer and a functional film coating the surface of the comfortable inner layer. The thickness of the functional film is 60-80 micrometers; the waterproof breathable fabric is manufactured through the steps of 1 preparing the comfortable inner layer, 2 preparing a coating adopted by the functional film and 3uniformly coating the surface of the functional inner layer with the coating for the functional film. The fabric comprises the comfortable inner layer and the functional film coating the surface of the inner layer, the comfortable inner layer is formed by manufacturing suplon fiber and modified viscose fiber, and the comfortable inner layer has the breathable, wearing comfortable, anti-flaming andother performances; the functional film adopts polyether copolymer acetamide resin as a film matrix, modified nanometer silicon dioxide is added, the porosity of the film is increased on the basis ofkeeping the good hydrophobic performance, the breathability of the film is ensured, the purposes of breathability and waterproofing are perfectly achieved, and the fabric is the novel healthy and environment-friendly fabric.

Description

technical field [0001] The invention belongs to the technical field of textile fabrics, and in particular relates to a waterproof and breathable fabric and a preparation method thereof. Background technique [0002] As people's requirements for quality of life are getting higher and higher, clothing fabrics must not only meet the requirements of shelter and aesthetics, but also be more comfortable to wear. On the basis that the basic functions of clothes remain unchanged, people pay more and more attention to the health care effect of clothes on the body. With the development of science and technology and the improvement of people's living standards, the demand for the safety of fabrics is also expanding. The functionality, comfort, health, environmental protection and health care of fabrics have higher requirements. Continuously research and develop new materials for clothes, and use appropriate technology to add various functions of different materials to clothing materia...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/12D06N3/00D03D15/00D03D13/00D01F2/08D03D15/225D03D15/283D03D15/50D03D15/513D03D15/52
Inventor 罗欣玲蒲成春
Owner 广州市番禺区港棉制衣厂
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