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 (.degree.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.ltoreq.145 (1).
摘要翻译:一种用于连续生产具有着色层的压花热塑性树脂片的方法,该方法包括将熔融热塑性树脂A和具有不同颜色的熔融热塑性树脂B与来自树脂A的熔融热塑性树脂B在用于挤出成型的模具内相连,通过挤出 打开以形成双层热塑性树脂片材,然后对片材进行压花,其中紧接在压花之前的热塑性树脂片材的温度T(℃)和紧接在压花之前的所述片材的表面粗糙度R(微米) 由符合ISO-R468的10点平均粗糙度表示,以满足以下关系:1.2R + T <= 145(1)。