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US 12,569,704 B2Granted
Water resistant protective garment
AssigneeElevate Textiles, Inc.
InventorsJacques A. Cantin, Guy Connors Lucas, Kiarash Arangdad
Life of this patent
Estimating the term…
Abstract
Protective garments are disclosed having a fabric material treated with a durable water resistant treatment. In accordance with the present disclosure, the durable water resistant treatment is substantially free of fluorocarbon chemicals and yet provides not only excellent water resistance, but also has excellent durability properties.
Claims21
A process for producing a fabric for making protective garments comprising:
- scouring a fabric material, the fabric material comprised of yarns, the yarns comprising only spun yarns or a combination of spun yarns and filament yarns, the yarns comprising inherently flame resistant fibers, the inherently flame resistant fibers comprising meta-aramid fibers, para-aramid fibers, polybenzimidazole fibers, poly (p-phenylene-2,6-benzobisoxazole) fibers, or mixtures thereof, the fabric material containing inherently flame resistant fibers in an amount greater than about 60% by weight of the fabric material,
- drying and heat setting the fabric material;
- applying a durable water resistant treatment to the fabric material to form a treated fabric material, the durable water resistant treatment being substantially fluorocarbon free, such that the treated fabric material contains less than 2% by weight fluorocarbon chemicals after being treated with the durable water resistant treatment, the durable water resistant treatment comprising a polyurethane polymer, an acrylic polymer, a blocked isocyanate, a wax, and optionally a softener, the polyurethane polymer comprising an anionic polyurethane that is aqueous dispersible, and wherein the polyurethane polymer comprises an aliphatic polyester/ether polyurethane polymer;
- heating the treated fabric material causing the durable water resistant treatment to affix to the inherently flame resistant fibers and form a dried finish, wherein the dried finish comprises about 10% to about 50% by weight of the polyurethane polymer and about 10% to about 70% by weight of a combination of the acrylic polymer and the wax;
- and
- wherein after being laundered ten times, the fabric material displays a water absorption of less than 10% when tested according to NFPA-1971 and displays a spray rating of greater than 70% when tested according to AATCC 22-2010.
3 more elements
A process for producing a fabric for making protective garments comprising:
- scouring a fabric material, the fabric material comprised of yarns, the yarns comprising only spun yarns or a combination of spun yarns and filament yarns, the yarns comprising inherently flame resistant fibers, the inherently flame resistant fibers comprising meta-aramid fibers, para-aramid fibers, polybenzimidazole fibers, poly (p-phenylene-2,6-benzobisoxazole) fibers, or mixtures thereof, the fabric material containing inherently flame resistant fibers in an amount greater than about 60% by weight of the fabric material,
- drying and heat setting the fabric material;
- applying a durable water resistant treatment to the fabric material by dipping the fabric material into a bath containing the durable water resistant treatment to form a treated fabric material, the durable water resistant treatment being substantially fluorocarbon free, such that the treated fabric material contains less than 2% by weight fluorocarbon chemicals after being treated with the durable water resistant treatment, the durable water resistant treatment comprising a polyurethane polymer, an acrylic polymer, a blocked isocyanate, a wax, and optionally a softener, the polyurethane polymer consisting of an anionic aliphatic polyester/ether polyurethane polymer that is aqueous dispersible;
- heating the treated fabric material causing the durable water resistant treatment to affix to the inherently flame resistant fibers and form a dried finish;
- and
- wherein after being laundered ten times, the fabric material displays a water absorption of less than 10% when tested according to NFPA-1971 and displays a spray rating of greater than 70% when tested according to AATCC 22-2010.
3 more elements
A process for producing a fabric for making protective garments comprising:
- scouring a fabric material, the fabric material comprised of yarns, the yarns comprising only spun yarns or a combination of spun yarns and filament yarns, the yarns comprising inherently flame resistant fibers, the inherently flame resistant fibers comprising meta-aramid fibers, para-aramid fibers, polybenzimidazole fibers, poly (p-phenylene-2,6-benzobisoxazole) fibers, or mixtures thereof, the fabric material containing inherently flame resistant fibers in an amount greater than about 60% by weight of the fabric material,
- drying and heat setting the fabric material;
- applying a durable water resistant treatment to the fabric material by dipping the fabric material into a bath containing the durable water resistant treatment to form a treated fabric material, the durable water resistant treatment being substantially fluorocarbon free, such that the treated fabric material contains less than 2% by weight fluorocarbon chemicals after being treated with the durable water resistant treatment, the durable water resistant treatment comprising a polyurethane polymer, an acrylic polymer, a blocked isocyanate, a wax, and optionally a softener, the polyurethane polymer comprising an anionic polyurethane that is aqueous dispersible, and wherein the polyurethane polymer comprises an aliphatic polyester/ether polyurethane polymer;
- heating the treated fabric material causing the durable water resistant treatment to affix to the inherently flame resistant fibers and form a dried finish, wherein the dried finish comprises about 10% to about 50% by weight of the polyurethane polymer and about 10% to about 70% by weight of a combination of the acrylic polymer and the wax;
- and
- wherein after being laundered ten times, the fabric material displays a water absorption of less than 10% when tested according to NFPA-1971 and displays a spray rating of greater than 70% when tested according to AATCC 22-2010.
3 more elements
Dependencies are inferred from the claim text.