| 摘要 |
1525108 Textured surface sheet materials G A F CORP 16 Oct 1975 [30 Dec 1974 (2)] 42516/75 Heading B2E Decorative sheet material, e.g. for floorcovering or wall-covering, having a textured surface is made by coating a flexible substrate e.g. of asbestos fibre sheet optionally impregnated with bitumen, woven or non-woven fibrous web, felt, cellulose or resin-impregnated cellulose, paper, cloth, plastics sheet or metal foil, with either (a) a plastisol or organosol of plastics material having foamable chips containing a blowing agent embedded therein, or (b) a foamable layer of plastisol or organosol of plastics material containing a blowing agent and having non- foamable chips embedded therein, and then heating the layer to a temperature sufficient to cure it, and decompose the blowing agent, thereby foaming the chips or the layer and imparting a textured surface due to the effect of the foamed chips in non-foamed layer or the non-foamed chips in the foamed layer. The plastisol or organosol may be of polyvinyl chloride, and the chips may be a plasticized polyvinyl chloride composition. Both or either may contain pigment e.g. TiO 2 particles. The substrate may be primed with an adhesion-promoting layer e.g. of acrylic latex, and the textured layer may be subsequently embossed or decoratively printed. A wear-resistant surface layer e.g. of polyurethane, epoxy resin or polyvinyl chloride, may be applied over the textured layer. |
