| abstract |
(57) [Problem] To provide an artificial stone plate for interior / exterior use which has a texture close to that of natural stone and an almost uniformly smooth surface, is excellent in texture and fire resistance, and a method for producing the same. A substrate layer is formed along a rugged shape with a large number of undulations, a plate layer formed into a undulated shape along a undulation on a back surface of the substrate layer, and coated along a undulation on a surface of the substrate layer. The multi-layer coating is composed of a multi-layer pattern coating, wherein the multi-layer pattern coating on the surface of the substrate layer is almost uniformly smooth while maintaining the undulating shape, and the composite layer of the substrate layer and the multi-layer pattern coating layer is JIS A 1321 "Test method for flame retardancy of building interior materials and construction methods". |