HOLOGRAM SEAL AND MANUFACTURE THEREOF

摘要

PURPOSE:To manufacture a hologram seal excellent in visual effect and decorative property and having a high indelible effect. CONSTITUTION:The pressure-sensitive adhesive layer 14 of a seal is formed into an optional pattern shape. The adhesive strength between a thermoplastic resin sheet 11 formed with a relief type hologram on the surface and a metal reflecting layer 12 is smaller than the adhesive strength between the metal reflecting layer 12 and the pressure-sensitive adhesive layer 14. The relief type hologram is formed concurrently with the fusion extrusion molding of the thermoplastic resin sheet 11 or a laminated sheet with a thermoplastic resin and a base material, not by the heat press method.