Breathable and waterproof composite fabric and a method of making the same
OwnerChen-Cheng HUANG, Pao-Hao HUANG +1inventors
InventorsChen-Cheng HUANG, Pao-Hao HUANG, Pao-Han HUANG
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Abstract
A breathable and waterproof composite fabric includes a fabric sheet and a waterproof plastic film. The fabric sheet has a first surface, a second surface and a plurality of micropores extending through the first and second surfaces. The waterproof plastic film is made of a non-porous material and has an outer surface, an inner surface bonded to the first surface, and a plurality of hollow protrusions protruding from the outer surface. Each of the hollow protrusions defines a channel having an inner open end at the inner surface and an outer open end distal from the inner and outer surfaces. A method of making the breathable and waterproof composite fabric is also provided.
Claims17
A breathable and waterproof composite fabric, comprising:
- a fabric sheet having a first surface and a second surface that is opposite to said first surface, and a plurality of micropores extending through said first and second surfaces;
- a first waterproof plastic film made of a non-porous material and having an outer surface, an inner surface that is opposite to said outer surface and that is bonded to said first surface of said fabric sheet, and a plurality of first hollow protrusions protruding from said outer surface in a direction opposite to said fabric sheet, each of said first hollow protrusions defining a first channel that extends through said inner and outer surfaces and that has an inner open end at said inner surface, and an outer open end distal from said inner and outer surfaces, said first channel extending curvedly from said inner open end to said outer open end.
A breathable and waterproof composite fabric, comprising:
- a fabric sheet having a first surface and a second surface that is opposite to said first surface, and a plurality of micropores extending through said first and second surfaces;
- a first waterproof plastic film made of a non-porous material, and having an outer surface, an inner surface that is opposite to said outer surface and that is bonded to said first surface of said fabric sheet, and a plurality of first hollow protrusions protruding from said outer surface in a direction opposite to said fabric sheet, each of said first hollow protrusions defining a first channel that extends through said inner and outer surfaces and that has an inner open end formed at said inner surface, and an outer open end distal from said inner and outer surfaces;
- and
- an adhesive pattern layer disposed between and interconnecting said first surface and said inner surface.
A method of making a breathable and waterproof composite fabric, comprising:
- applying an adhesive pattern layer on a fabric sheet in such a manner that the adhesive pattern layer uncovers micropores in the fabric sheet;
- bonding a first waterproof plastic film to the fabric sheet through the adhesive pattern layer;
- placing the fabric sheet and the waterproof plastic film over a screen mold;
- heating and softening the waterproof plastic film;
- and
- vacuum forming hollow protrusions in the waterproof plastic film by applying a suction force to the screen mold along a first direction that is transverse to the fabric sheet, followed by making relative movement between the waterproof plastic film and the screen mold along a second direction transverse to the first direction so as to dislocate the waterproof plastic film relative to the screen mold, thereby causing the first channel 501 to change from the first direction to the second direction.
Dependencies are inferred from the claim text.