| 摘要 |
PURPOSE:To obtain the titled sheet excellent in durability such that a pad is not peeled off a surfacing material over a long time, by high-frequency welding the surfacing material weldable with high-frequency heat to the pad in which a sheet material weldable with high-frequency heat is embedded. CONSTITUTION:A sheet material 13 comprising a surfacing material 8 prepd, by covering an urethane wadding 10 with a surface layer 9 and a back foundation 11 composed of a raw material weldable with high-frequency heat, and a raw material weldable with high-frequency heat provided at a position for forming a dent part 12a is situated in relation with a pad 12 having a surface partially exposed. The laminate is inserted into a gap between high-frequency welders 14, 14' and pressed into a unitary body with heat by applying voltage between electrodes. |
