Patent ID: 8490259

Claim:
A method of making a synthetic fiber-containing durable fire retardant fabric-containing material having only a hydroentangled fabric formed of one or more reinforcing layers and one or more additional secondary layers hydroentangled thereto, and a fire retardant binder composition applied to the hydroentangled fabric, comprising steps of: providing one or more reinforcing layers, wherein said one or more reinforcing layers consist of polyester fibers and cellulosic fibers in combination; positioning one or more additional secondary layers in a face-to-face relationship with the one or more reinforcing layers, wherein said one or more additional secondary layers consist of cellulosic fibers and synthetic fibers in combination, wherein said synthetic fibers are selected from the group consisting of polyester, nylon, polypropylene and combinations thereof; hydroentangling the one or more reinforcing layers and the one or more additional secondary layers to produce a hydroentangled fabric formed of the one or more reinforcing layers and the one or more additional secondary layers hydroentangled thereto; and treating the hydroentangled fabric formed of the one or more reinforcing layers and the one or more additional secondary layers hydroentangled thereto with a fire-retardant binder composition to form a synthetic fiber-containing durable fire retardant fabric-containing material, wherein the synthetic fiber-containing durable fire retardant fabric-containing material performs in accordance with the requirements set forth in Technical Bulletin 603 of the State of California Department of Consumer Affairs.