| 摘要 |
PURPOSE:To prevent the thickness of a sheet from reducing partially and to transfer a pattern excellent in transferability to a sheet by a method wherein after a synthetic resin sheet is prestretched by a male mold approximately into a formed shape, it is clamped by said male mold and a vacuum forming female mold to perform a vacuum molding. CONSTITUTION:To take an example, by the use of the male mold 4 that can regulate temperature by a cartridge heater 3, a synthetic resin sheet 1 is prestretched approximately into a formed shape, the vacuum forming female mold 5 and the prestretching male mold 4 that can regulate temperature by a cartridge heater 6 are closed, then simultaneously vacuum drawing is performed by the female mold 5, pressurizing is made by the male mold 4, he synthetic resin sheet 1 is vacuum-molded to transfer a pattern such as stitch, etc. on the surface of the convex side. EFFECT:Patterning is made at low cost. |
