| 摘要 |
PURPOSE:To provide an exterior sheet material having durability, easy in bending processing, having surface gloss rich in quality feeling and low in production cost. CONSTITUTION:A thermoplastic resin 3 is extruded to be applied to the single surface or both surfaces of cardboard 2 being a base material in a non-stretched state to form a sheet material 1. Since the durability is provided to this sheet material 1 by the resin layer and the resin layer itself has no stiffness, bending processing of the sheet material by a rule becomes easy and surface gloss having a quality feeling is obtained and, since the sheet material is formed by continuously applying a resin to roll-shape cardboard, production cost is lowered. |
