| 摘要 |
PURPOSE:To prepare the titled composite container capable of being certainly and easily subjected to hermetical sealing, by forming an upper edge rib to the upper edge of a container side wall while double-seaming the outer periphey of a lid to the upper edge rib while supporting the pressure receiving projection formed to the outer surface of the container side wall to perform sealing. CONSTITUTION:A frame comprising a synthetic resin material is provided to the desired part of a panel material comprising a flexible material for constituting a container for the sake of the connection and reinforcement of the panel material to prepare composite container. In this method, an upper rib 7 is formed to the upper edge of the container side wall 1 as one of the frame. This upper edge rib 7 fixes the upper end part of the container side wall and reinforces the opening part of the container. A pressure receiving projection 20 is formed to the upper outer surface of the container side wall 1 from a synthetic resin material so as to be integrated with the frame and the peripheral edge of a lid 3 and the upper edge (the upper edges 4, 5 and the upper edge rib 7 of the panel material) of the container side wall 1 are rolled and sealed by a roll type seaming means while the pressure receiving projection 20 is supported from below by a pressure receiving stand 21. |
