Abstract: A method of backing carpeting material 19 with hot-melt compositions such as atactic polypropylene (APP or bitumen (with or without additives) comprises carefully doctoring selected thicknesses of the composition to the undersurface of the material 19 with the wear surface of the material uppermost. In one arrangement (FIG. 3) this is achieved using a lick roll arrangement 20 incorporating a doctor blade, cooling the backed product at cooling zones 28, 29 and applying the material to a nip formed by rollers 21. In another arrangement (FIG. 1) this is achieved by doctor box 16 applying the composition to a carrier 13, the carpeting material 19 then being laminated at roll 21 to the layer of composition, the laminate then being cooled before being stripped from the carrier 13. In a further arrangement (FIG. 2) the carrier is in the form of sheet material 15 which is supported by endless belt 13 and which is bonded into the hot-melt composition to become an integral part thereof.

Abstract: A method of backing carpeting material 19 with hot-melt compositions such as atactic polypropylene (APP) or bitumen (with or without additives) comprises carefully doctoring selected thicknesses of the composition to the undersurface of the material 19 with the wear surface of the material uppermost. In one arrangement (FIG. 3) this is achieved using a lick roll arrangement 20 incorporating a doctor blade, cooling the backed product at cooling zones 28, 29 and applying the material to a nip formed by rollers 21. In another arrangement (FIG. 1) this is achieved by doctor box 16 applying the composition to a carrier 13, the carpeting material 19 then being laminated at roll 21 to the layer of composition, the laminate then being cooled before being stripped from the carrier (13). In a further arrangement (FIG. 2) the carrier is in the form of sheet material 15 which is supported by endless belt 13 and which is bonded into the hot-melt composition to become an integral part thereof.

Abstract: A method of backing carpeting material 19 with hot-melt compositions such as atactic polypropylene or bitumen comprises carefully doctoring selected thicknesses of the composition to the undersurface of the material 19 with the wear surface of the material uppermost. In one arrangement this is achieved using a lick roll arrangement 20 incorporating a doctor blade, cooling the backed product at cooling zones 28, 29 and applying the material to a nip formed by rollers 21. In another arrangement this is achieved by doctor box 16 applying the composition to a carrier 13, the carpeting material 19 then being laminated at roll 21 to the layer of composition, the laminate then being cooled before being stripped from the carrier 13. In a further arrangement the carrier is in the form of sheet material 15 which is supported by endless belt 13 and which is bonded into the hot-melt composition to become an integral part thereof.

Abstract: A composite fabric comprises a layer of pile-forming material such as a textile bonded to a substrate material by an interlayer of plastics material which is substantially air-free. The interlayer has a density in the range 0.9 to 1.5 gm/cc and the substrate is a slab of deaerated plastics material having a weight up to 6.5 kg/sq. meter (12 lbs/sq. yard) and incorporating a layer of fibrous material such as glass fibre scrim. The pile forming material may be as light as 68 gm/sq. meter (2 oz/sq. yard) and as heavy as 4 kgm/sq. meter (120 oz/sq. yard).

Abstract: Apparatus for manufacturing a composite fabric, including an endless carrier belt having a non-stick surface and traversible over first and second contiguous sets of planar support surfaces. Heating means are provided for heating the first set of planar support surfaces and cooling means for cooling the second set of planar support surfaces. A first means is provided for supplying a relatively thick substrate to the carrier belt in advance of the first set of planar support surfaces which means includes a device for applying deaerated thermo-plastics material in liquid form directly to the surface of the carrier belt. A second means supplies pile-forming material and a third means is arranged to receive the pile-forming material that includes a lick roller for coating one surface of said pile-forming material with plastics material in liquid form.

Abstract: A method of and apparatus for blanking products from pliable sheet material where the material to be cut is supported on a planar support member within the peripheral shape of the final product and after the blanking process has been completed a product-discharge roller is moved through an aperture in the supporting surface to lift the cut product clear of the cutting edge and discharge the product from the cutting apparatus. Additionally, the cutting edge has a portion which separates the cut product and its peripheral waste from incoming material and the peripheral waste is positively discharged from the apparatus by a conveyor arrangement located externally of the cutting edge which defines the products peripheral shape.