| 摘要 |
PURPOSE:To enable the application of direct high frequency welding to a metal container to dispense with applying a treatment for widening the area of an adhesive part to the metal container and to obtain a strong seal strength and hermetical sealability even when high frequency welding is performed at temp. not changing the content in the metal container. CONSTITUTION:In a hermetically sealing film 1 for a metal container obtained by laminating at least a high frequency welding layer 12 to an aluminum foil layer 11 and welded to the opening part of the metal container by a high frequency induction heating system through the high frequency welding layer 12 to hermetically seal the opening part, a polyester hot melt layer is laminated to the aluminum foil layer 11 as the high frequency welding layer. |
