Durable natural fabric products

A natural fabric or textile product which is woven, knitted, or fabricated from natural fibers, yarns, or threads including at least one exterior surface, said exterior surface receiving a waterproofing composition comprising at least a crosslinking polyvinyl acetate adhesive applied and cured on said product as a first coating layer or a primer;

• said yarns or threads being twisted or spun from the natural fibers;
• wherein said product at least comprises a warp composition element in the formed weave structure;
• wherein the crosslinking polyvinyl acetate adhesive at least includes a polyvinyl acetate-based adhesive resin, a crosslinking agent and a catalyst, and is a Type I or Type II adhesive;
• wherein said adhesive is crosslinked and cured at a temperature of not higher than 250° F. or 121° C.;
• wherein said adhesive forms into a coating film on at least one portion of the exterior surface of said product as a protective coating which is free of penetration into the fibers of said product and provides surface protection to said product;
• and
• wherein said adhesive when cured consists of a first bonding as coating film to bond and seal the exterior surface of said product, and a second bonding in which said adhesive fills gaps or voids between or among adjacent weaving fibers, yarns or threads on the exterior surface of said product and bonds together said fibers, yarns or threads, such that said adhesive is on the exterior surface of said products.

A natural fabric or textile product which is woven, knitted, or fabricated from natural fibers, yarns, or threads, comprising:

• a crosslinking polyvinyl acetate adhesive applied and cured on at least one exterior surface of said product as a first coating layer or a primer and a coating selected from the group of acrylic, alkyd, asphalt, emulsion polymer isocyanate, epoxy, lacquer, latex, polyurethane, urethane, and vinyl ester applied over the cured crosslinking polyvinyl acetate adhesive as a second coating layer or a topcoat;
• said yarns or threads being twisted or spun from said fibers;
• wherein said product comprises at least one composition element of warps and wefts in weave structure or pattern;
• wherein said adhesive forms into a continuous coating film on at least a part of the exterior surfaces of said product as a protective coating;
• wherein said adhesive includes a polyvinyl acetate-based adhesive polymer, a copolymer, a crosslinking agent, and a catalyst and is a Type I or Type II adhesive;
• wherein said adhesive is crosslinked and cured at a temperature of not higher than 250° F. or 121° C.;
• wherein said adhesive when cured consists of a first bonding as coating film to bond and seal the exterior surface of said product, and a second bonding in which said adhesive fills gaps or voids between or among adjacent weaving fibers, yarns or threads on the exterior surface of said product and bonds together said fibers, yarns or threads, such that said adhesive is on the exterior surface of said products;
• wherein said adhesive is free of penetration into the fibers of said fabric or product;
• and
• wherein said adhesive improves the water resistance, rigidity or stiffness, strength, and dimensional stability of said product as a protective coating when applied and cured on said product, and provides surface protection to said product.