PROCESS FOR PRODUCING AN EMBOSSED THERMOPLASTIC RESIN SHEET HAVING A COLORED LAYER

摘要

A process for continuously producing an embossed thermoplastic resin sheet having a colored layer which comprises associating a molten thermoplastic resin A and a molten thermoplastic resin B having a different color from the resin A within a die for extrusion molding, extruding the associated mass through an extrusion opening to form a two-layered thermoplastic resin sheet, and thereafter embossing the sheet, wherein the temperature T ( DEG C.) of the thermoplastic resin sheet immediately before the embossing and the surface roughness R (micrometers) of said sheet immediately before the embossing expressed by a 10-point average roughness in accordance with ISO-R468 are selected so as to satisfy the following relation 1.2R+T