| 摘要 |
PROBLEM TO BE SOLVED: To provide a masking material hardly deformed because of absorbing little moisture in long-term storage, hardly peeled because a coating film sticks to a surface in the case of coating, hardly dissolved or swelling with a solvent of a coating material, having moderate hardness and high in resistance particularly in repeated use.SOLUTION: A masking material is formed by molding, in predetermined shape, a three-layer laminated sheet with a front layer and a rear layer laminated on both faces of a core layer. The front layer and the rear layer are formed of a resin mixture of acrylonitrile butadiene styrene resin and polypropylene mixed to have a mass ratio within a range of 20:80 to 60:40, and the core layer is formed of a resin mixture of polypropylene and polyethylene mixed to have a mass ratio within a range of 98:2 to 60:40. |
