| 摘要 |
PROBLEM TO BE SOLVED: To facilitate the removal of a molding from a mold, to vacuum-form a film in advance, to return to an initial form easily, to save labor, to shorten mold using time, and to improve productivity. SOLUTION: A polypropylene film 6 which does not have adhesion to a molding 16 is vacuum-formed in advance in a form analogous to the cavity 5 form of a lower mold 3 and/or an upper mold 2. Next, an expandable raw material is cast on the film 6 in the cavity 5 and expanded. When the expansion of polyurethane foam is finished, the molding 16 is lifted with the film 6, only the molding 16 is peeled off from the film 6 and removed from a mold 1 without removing the whole film 16 from the mold 1, and the lifted film 6 is returned to an initial vacuum-formed form to be rearranged in the cavity 5. |
