| 摘要 |
PURPOSE:To achieve a higher quality of a molding, especially a higher clearness of the luster by providing a ridge at a point corresponding to the open rim of a mask on the surface of the molding. CONSTITUTION:Exposed parts other than parts covered with a mask F is irradiated with light from a lamp apparatus 9. A space D is provided to prevent the mask F from damaging a molding M during the movement threof. When a ridge H is provided at the position corresponding to both ends of the part YA to receive a luster, namely, the open rim of the mask F, the ridge H is steep in the rising of the side wall H1 at the part covered with the mask F. The ridge H thus provided receives heat to store and is allowed be to melt more quickly than other parts with a concentrated heating so that melting can be prevented at parts other than the part YA to receive a luster based on this melted part to make the luster clearer. Thus, the ridge provided at both side ends of the part to receive a luster can create a boundary at the part to receive a luster to ensure a clearer luster. |
