| 摘要 |
PURPOSE:To obtain a cheap masking lamination material by laminating through extrusion laminate a transparent synthetic resin film layer and heat adhesive synthetic resin film layer on an opacifying layer. CONSTITUTION:An opacifying lamination material is constituted such that a transparent synthetic resin film layer B and heat adhesive synthetic resin film layer C are laminated on an opacifying layer A through extrusion lamination. The opacifying layer A serves to opacify printing or writing and, for instance, paper or synthetic resin film or the like is made a base material, and one given opacifying properties by use of an aluminum foil or evaporated layer or the like is used. Especially, an opacifying layer arranged with a synthetic resin layer as its surface layer is preferable in view of the fact that it has an excellent waterproof property. As the transparent synthetic resin film layer B, a rear material of the opacifying layer A and synthetic resin with an excellent mold release property are employed. It is preferred to use, for example, polyethylene, polypropylene, polyester or any of those with which a separative addition agent is blended or the like. For the heat adhesive synthetic resin film layer C, it is necessary to have an adhesive force larger than the adhesive force of the transparent synthetic resin film layer B and, for example, it is preferred to use ethylene-vinyl acetate copolymer, ethylene-acrylic ester copolymer and any of those with which an addition agent is blended thereto, or the like. |
