| 摘要 |
PROBLEM TO BE SOLVED: To provide a printed synthetic resin sheet in which the occurrence of the trace of the air hole of a hot plate in the printed surface of the printed synthetic resin sheet is prevented and the degradation of stretch forming properties is prevented in hot plate type vacuum pressure forming and a method of stretch-forming the synthetic resin sheet. SOLUTION: In the hot plate type vacuum pressure forming, after the printed surface of the printed synthetic resin sheet 15 which is set on a stretch forming mold 11 is pressed to the hot plate 17 by pressurized air-pushing from the air hole 11a of the mold 11 and vacuum-suction from the air hole 17a of the hot plate and the sheet is heated, the stretch forming is carried out by high temperature pressurized air ejected form the air hole 17a of the hot plate 17 and the vacuum suction from the air hole 11a of the mold 11. The synthetic resin sheet is printed with an ink having hardness to prevent the occurrence of the trace of the air hole in the printed surface of the sheet and elongation characteristics to prevent the degradation of the stretch forming properties of the synthetic resin sheet and stretch-formed. COPYRIGHT: (C)2007,JPO&INPIT
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