BACKING MATERIAL LAYER FOR CARPET HARDLY GENERATING HARMFUL GAS AND SO ON, CARPET HARDLY GENERATING HARMFUL GAS WHICH IS EQUIPPED WITH SAID BACKING MATERIAL LAYER, AND METHOD FOR MANUFACTURING CARPET HARDLY GENERATING HARMFUL GAS

摘要

The present invention provides: a completely novel backing material layer which has incombustibility and fire resistance as well as flame resistance and therefore has such a function that a harmful gas is hardly generated therefrom, and also has the most appropriate cushioning property, flexibility and a stretching property; and a carpet hardly generating a harmful gas, which is equipped with the backing material layer.The carpet hardly generating a harmful gas according to the present invention is characterized by being produced by adhering a backing material layer to a surface material layer with an adhesive material layer interposed therebetween, wherein the backing material layer comprises carbon fibers produced by a heating/carbonizing treatment and/or oxidized acrylic fibers and a non-woven fiber assembly produced by mixing polyester fibers with cotton, the content of the carbon fibers and/or the oxidized acrylic fibers is 30 to 80 wt%, the content of the polyester fibers is 20 to 70 wt%, and all of the fibers are so formed as to have diameters of 2.0 to 16.0 dtex and cut lengths of 20 to 160 mm.