Water-based waterproof breathable fabric

Abstract

The utility model discloses a water-based waterproof breathable fabric which comprises a base cloth layer, a breathable layer and an adhesive layer, the base cloth layer, the breathable layer and the adhesive layer are sequentially arranged from bottom to top, and the breathable layer is a polyurethane film. The waterproof breathable fabric has good waterproof and breathable performance.

Description

Technical Field

[0001] The utility model relates to the technical field of fabrics, and more specifically to a water-based waterproof and breathable fabric. Background Art

[0002] Currently, most breathable fabrics on the market are made using polyurethane films. Traditional polyurethane stretch films are mostly made using solvent-based polyurethane. The production of solvent-based polyurethane poses numerous safety risks and serious pollution. Therefore, there is a need to improve the use of solvent-based polyurethane in existing fabrics. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies of the prior art and provide a water-based waterproof and breathable fabric.

[0004] In order to achieve the above purpose, the utility model adopts the following technical solutions:

[0005] The utility model discloses a water-based waterproof and breathable fabric, which comprises a base fabric layer, a breathable layer and a glue layer. The base fabric layer, the breathable layer and the glue layer are arranged in sequence from bottom to top, and the breathable layer is a polyurethane film.

[0006] Furthermore, the thickness of the breathable layer is 10-15 filaments.

[0007] Furthermore, the breathable layer is made of water-based polyurethane modified with silicon microspheres.

[0008] Furthermore, the adhesive layer is made of water-based polyurethane hot melt adhesive.

[0009] Furthermore, the thickness of the adhesive layer is 10-15 filaments.

[0010] Furthermore, an isolation layer is included, and the isolation layer is arranged on the upper part of the adhesive layer.

[0011] The beneficial effects of the utility model are as follows: the polyurethane film has good air permeability and good elasticity, and is compounded on the base fabric layer, so that the fabric has good waterproof and vapor permeability. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 This is a structural diagram of the water-based waterproof and breathable fabric in this embodiment.

[0013] Reference numerals: 1, base fabric layer; 2, breathable layer; 3, adhesive layer; 4, isolation layer. DETAILED DESCRIPTION

[0014] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0015] like Figure 1 As shown, a water-based waterproof and breathable fabric is prepared by coating a PET film with water-based polyurethane modified with silicon microspheres and then drying it. After drying, a transparent film is obtained, which is the breathable layer 2 and has good air permeability and good elasticity. The thickness of the film is 10-15 mm.

[0016] The aqueous polyurethane hot melt adhesive emulsion is thickened and then coated on the transparent film of the first layer, thereby forming an adhesive layer 3 on the transparent film. The adhesive layer 3 plays the role of waterproofing and protecting the breathable layer 2.

[0017] After tearing off the PET film, a transparent film is covered on the base fabric layer 1 so that the breathable layer 2 is in contact with the surface of the base fabric layer 1, thereby completing the preparation of the fabric.

[0018] In order to prevent the adhesive layer 3 from adhering to the PET film during winding, an isolation layer 4 is provided on the surface of the adhesive layer 3 to separate the adhesive layer 3 and the PET film, thereby avoiding adhesion.

[0019] The base fabric layer is woven from warp and weft threads. The warp threads include polyamide fibers and polyacrylonitrile fibers arranged around the outer periphery of the polyamide fibers. The weft threads include polyester fibers and linen fibers, which are spirally wound.

[0020] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, certain improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A water-based waterproof and breathable fabric, characterized in that: The invention comprises a base fabric layer (1), a breathable layer (2) and an adhesive layer (3), wherein the base fabric layer (1), the breathable layer (2) and the adhesive layer (3) are arranged in sequence from bottom to top, and the breathable layer (2) is a polyurethane film.

2. A water-based waterproof breathable fabric according to claim 1, characterized in that: The thickness of the breathable layer (2) is 10-15 filaments.

3. The water-based waterproof and breathable fabric according to claim 1, characterized in that: The air permeable layer (2) is made of waterborne polyurethane modified with silicon microspheres.

4. The water-based waterproof and breathable fabric according to claim 1, characterized in that: The adhesive layer (3) is made of water-based polyurethane hot melt adhesive.

5. The water-based waterproof and breathable fabric according to claim 4, characterized in that: The thickness of the adhesive layer (3) is 10-15 millimeters.

6. The water-based waterproof and breathable fabric according to claim 1, characterized in that: It also includes an isolation layer (4), which is arranged on the upper part of the adhesive layer (3).

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