Process for preparing incombustible board for interior decoration and facing of architectures

摘要

Activated clay is mixed with fine sawdust and/or powder of the heart of kaoliang stalk, a small amount of a coloring agent and bittern containing calcium sulfate, calcium silicate, magnesium or magnesium chloride and the like, or a composition of components identical to the bittern in a paste phase. Then, the paste phase mixture is supplied together with glass fiber layers provided on the upper and the lower sides of the mixture separately on any one of molding plates selected from glass, acryl, polycarbonate, polyvinyl chloride or polypropylene. The materials of the molding plates, in situ, are passed through mixture- separative sandwich rollers to give a certain thickness of a mixture sheet by pressing. The surface of the mixture sheet is coated with an epoxy resin layer to provide a flat and slick surface. On the epoxy resin layer an adhesive layer, transfer film layer, ultraviolet curable adhesives and a protection film layer are coated by adherence in turn to provide an incombustible board. This board is manufactured by a brief and convenient process. Many kinds of materials are not needed, the resulting products are firm and light and, on the surface of the products, multiple color designs can be exposed selectively.