| 摘要 |
PROBLEM TO BE SOLVED: To improve workability and productivity by forming a film by co- extruding a resin component containing a perfume and a perfume barrier resin incompatible with the resin component using an extruder. SOLUTION: A resin component A containing a thermoplastic resin a1 and a perfume a2, and a resin component B having perfume barrier properties and containing a resin b1 incompatible with the resin a1 are melted and kneaded respectively, and extruded so that the resin component B is on both surface layers. The thermoplastic resin a1 used for the resin component A is a styrene resin or an olefin resin. A density of the perfume a2 to be blended is in a range of 0.01-30 wt.%. After co-extrusion and film forming, the resin component A and the resin component B to be co-extruded therewith form a release film as a surface layer of an aromatic multi-layered structure. By making a peel strength of a layer B on the surface layer and a layer A 300 g/15 cm or lower, peeling at the time of using of the obtained aromatic multi-layered structure is easy. |
