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Composite waterproof moisture permeable fabric and preparation method thereof

A waterproof and moisture-permeable, fabric technology, applied in chemical instruments and methods, synthetic resin layered products, lamination, etc., can solve problems such as blockage and decreased moisture-permeable function, to simplify the composite process, improve waterproofness, and avoid fabrics. The effect of uneven thickness and performance

Active Publication Date: 2019-03-08
BOSIDENG DOWN WEAR
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In the prior art, a lamination method is often used to combine the waterproof and moisture-permeable layer with traditional fabrics through hot-melt adhesives. Its moisture permeability decreases

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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  • Composite waterproof moisture permeable fabric and preparation method thereof
  • Composite waterproof moisture permeable fabric and preparation method thereof
  • Composite waterproof moisture permeable fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0038] The traditional fabric fabric is made of woven polyester-cotton plain weave fabric, and the fabric has been water-repellent finished, and the fabric is fixed on the surface of the receiving drum through double-sided adhesive tape;

[0039]Weigh a certain amount of polyurethane (PU), dissolve it in acetone / N-N dimethylformamide mixed solvent with a volume ratio of 1:3, stir magnetically for 2-3 hours, and obtain concentrations of 3wt%, 7wt%, and 11wt%, respectively. % and 15wt% spinning solution, stand-by;

[0040] Add the PU spinning solution into the liquid storage pipe in sequence according to the concentration gradient of 3wt%, 7wt%, 11wt%, and 15wt%, wherein the PU spinning solution with a concentration of 3wt% is close to the spinning needle;

[0041] Adjust the positive voltage of the electrospinning device to +18kV, turn on the propeller and the drum, and push the spinning solution out of the storage tube at a speed of 2mL / h; among them, the inner diameter of the...

Embodiment 2

[0046] The traditional fabric fabric is made of woven polyester-cotton plain weave fabric, and the fabric has been water-repellent finished, and the fabric is fixed on the surface of the receiving drum through double-sided adhesive tape;

[0047] Weigh a certain amount of polyurethane (PU), dissolve it in acetone / N-N dimethylformamide mixed solvent with a volume ratio of 1:3, stir magnetically for 2-3 hours, and obtain concentrations of 2wt%, 6wt%, and 8wt%, respectively. % and 10wt% spinning solution, stand-by;

[0048] Adding the PU spinning solution into the liquid storage pipe sequentially according to the concentration gradient of 2wt%, 6wt%, 8wt%, and 10wt%, wherein the PU spinning solution with a concentration of 2wt% is close to the spinning needle;

[0049] Adjust the positive voltage of the electrospinning device to +18kV, turn on the propeller and the drum, and push the spinning solution out of the storage tube at a speed of 2mL / h; among them, the inner diameter of ...

Embodiment 3

[0054] The traditional fabric fabric is knitted hemp fabric, and the fabric is water-repellent, and the fabric is fixed on the surface of the receiving drum through double-sided adhesive tape;

[0055] A certain amount of polyvinylidene fluoride was weighed, dissolved in dimethyl sulfoxide, and magnetically stirred for 2 hours to obtain spinning solutions with concentrations of 3wt%, 6wt%, 10wt% and 15wt%, respectively, for use;

[0056] The polyvinylidene fluoride spinning solution is sequentially added into the liquid storage pipe according to the concentration gradient of 3wt%, 6wt%, 10wt%, and 15wt%, wherein the polyvinylidene fluoride spinning solution with a concentration of 3wt% is close to the spinning needle;

[0057] Adjust the positive voltage of the electrospinning device to +10kV, turn on the propeller and the drum, and push the spinning solution out of the storage tube at a speed of 3mL / h; among them, the inner diameter of the needle used for electrospinning is 1....

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Abstract

The invention discloses a composite waterproof moisture permeable fabric and a preparation method thereof, and belongs to the field of textile finishing. Spinning solution with different concentrationgradients is adopted, low-concentration spinning solution is pushed out of a solution storage pipe before other high-concentration spinning solution, hydrophobic material micro-nano liquid drops notforming fibers are firstly prepared on a traditional fabric and then pushed out along with the high-concentration spinning solution, hydrophobic materials can form fibers and can be collected on the traditional fabric, and the previous hydrophobic material micro-nano liquid drops function as adhesives and combines the traditional fabric together with electrostatic spinning nano-fibers to obtain the composite waterproof moisture permeable fabric. A compound technology is simplified, time and material cost are saved, and the problem of fabric thickness and performance non-uniformity caused by the adhesion process is avoided.

Description

technical field [0001] The invention relates to a composite waterproof and moisture-permeable fabric and a preparation method thereof, belonging to the field of fabric finishing. Background technique [0002] Waterproof & Moisture Permeable Fabric (Waterproof & Moisture Permeable Fabric) is usually also called waterproof and breathable fabric, and it is generally called Waterproof and Breathable Fabric (breathable fabric) abroad. Waterproof and moisture-permeable fabric refers to the function that water droplets (or liquid droplets) cannot penetrate into the fabric, and the sweat emitted by the human body can be diffused and transmitted to the outside world through the fabric, so as not to accumulate or condense between the clothes and the skin, and not feel stuffy. sexual fabric. It is a high-tech textile that combines wind, rain, snow, cold and warmth, beauty and comfort, which emerged when human beings constantly improve self-protection in order to resist the infringemen...

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): B32B9/02B32B9/04B32B27/02B32B27/12B32B27/30B32B27/34B32B27/36B32B27/40B32B37/06B32B37/10D04H1/728D04H1/4382D01D5/00
Inventor 李晓强孙倩张家琳陈欣
Owner BOSIDENG DOWN WEAR
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