US 4,933,231 A · Abrasion resistant, high strength composite padded fabric material

Abstract

An abrasion and tear resistant, high strength composite laminated padded fabric material for use in the fabrication of tradesmen and craftsmen work items such as aprons and nail bags, tool pouches and tool holders, cordless tool holsters, belts and back support pads, knee pads and the like. The composite fabric material of the invention is a heat and pressure formed double laminate of like outer primary layers of tight-woven threads of high-tenacity nylon fibers and an intermediate padding layer of cross-linked, high-density, closed-cell or open-cell, flexible synthetic polymer foam. The composite laminated fabric material is formed by first bonding one of the outer nylon fabric layers to one side of the intermediate foam layer and thereafter bonding the other outer nylon fabric layers to the other side of the intermediate foam layer.

Claims15

Dependent claims

An abrasion and tear resistant, high strength composite laminated padded fabric material for use in the fabrication of tradesmen and craftsmen work items and apparel comprised of:

(a) first and second outer primary layers of tight-woven threads of high-tenacity nylon fibers;
and
(b) an intermediate synthetic polymer foam layer coextensive with said outer primary layers and permanently bonded to the threads thereof, said intermediate layer consisting of a synthetic polymer foam material selected from the group of closed and open-cell, cross-linked foam materials formed of homopolymers and copolymers of polyethylene, polyurethane, and vinyl-based polymers, and said intermediate layer having a substantially uniform thickness within said laminated fabric material of from about 0.8 mm to about 3.6 mm.

(a) bonding a first outer primary fabric layer of tight-woven threads of high-tenacity nylon fibers to a coextensive first surface of an intermediate layer of synthetic polymer foam selected from the group of closed-cell and open-cell foams formed of homopolymers and copolymers of polyethylene, polyurethane, and vinyl-based polymers;
and
(b) bonding a second outer primary fabric layer of tight-woven threads of high-tenacity nylon fibers to the coextensive opposite surface of said intermediate foam layer to form said laminated fabric material, said intermediate foam layer having a substantially uniform thickness within said laminated fabric material in the range of from about 0.8 mm to about 3.6 mm, and said laminated fabric material having an overall thickness in the range of about 1.2 mm to about 4.8 mm.

A method of producing an abrasive and tear resistant, high strength composite laminated padded fabric material for use in the fabrication of tradesmen and craftsmen work items and apparel, said composite laminated fabric material consisting of first and second outer primary fabric layers of tight-woven threads of high-tenacity nylon fabers each bonded to a coextensive intermediate layer of synthetic polymer foam selected from the group of closed-cell and open-cell foams formed of homopolymers and copolymers of polyethylene, polyurethane and vinyl-based polymers, said method comprising:

(a) heating a first surface of a moving web of said intermediate foam layer to its fusion temperature;
(b) interfacing a moving web of said first outer primary fabric layer with the heated first surface of the moving web of said intermediate foam layer under pressure to bond said first outer primary fabric layer to said intermediate foam layer and form a first laminated moving web of said layers;
(c) heating the second surface of the intermediate foam layer of the first laminated moving web to its fusion temperature;
and
(d) interfacing a moving web of said second primary fabric layer with the heated second surface of the first laminated moving web under pressure to bond said second outer primary fabric layer to said intermediate foam layer and thereby form a double laminated moving web of said composite laminated padded fabric material.

2 more elements

Dependencies are inferred from the claim text.

Abrasion resistant, high strength composite padded fabric material

Life of this patent

Abrasion resistant, high strength composite padded fabric material

Life of this patent

Abstract

Claims15