Backing of carpets

Details Backing of carpets Backing of carpets

B - Operations, Transporting

32

B

154/49

B32B 5/26 (2006.01) B32B 5/12 (2006.01) B32B 5/28 (2006.01) D06N 7/00 (2006.01)

Patent

CA 1071989

A B S T R A C T A tufted carpet or similar non-woven floor covering has a pile surface carried by a primary backing, an anchor coat to bind the pile into the backing, a resilient layer of foam laminated to the anchor coat and an at least partly fibrous secondary backing laminated to the foam. The thickness of the foam is in the range of 1.0 to 4.0 millimetres and the secondary backing is preferably laminated directly to the layer of foam. The main constituent of the foam may be styrene butadiene rubber and the foam may be extruded by a filler or fillers. The floor covering is produced by a method which includes the step of bringing the layer of foam and the secondary backing into contact with one another while the foam is still in a moist state so as to cause a degree of mutual penetration between these two layers and then completing the lamination by the application of heat to cure and dry the foam.

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