Device and method for manufacturing an embossed structure on a pearl synthetic paper made of a 3-layer co-extruded biaxially oriented polypropylene

摘要

The present invention discloses a decice and a method for processing the impression structure of 3-layer co-extruded biaxial oriented polypropylene (BOPP) pearl synthetic paper. The depth of the impression on the synthetic paper is between 0.2-1000µm which is embossed by the modified embosser. The 3-layer co-extruded pearl synthetic paper is processed for cooling, biaxial orientation, corona treatment and winding and then passing through the modified embosser to preheating, calender, cooling. The modified embossing device comprises a rubber back-up (35) roll having at least Shore A hardness of 60-90; an embossing roll (36) with a designed pattern and a cooling system having a core; a quartz electric heating oven (33) preheated to 65°C to 160°C; an infrared heater (30); and two adjacent cooling drums (31) with 7°C.