| 摘要 |
PURPOSE:To facilitate opening and to again mount a lid body to a container main body, by a method wherein the release strength of the multilayer structure of the lid body is made smaller than the bonding strength of a flange part and the lid body and an unseal part is formed on the center side of a container from the seal part of the lid body and the flange part and a notch is formed to the first layer part faced to the unsealed part and engaging parts are formed to both of the lid body and the container main body. CONSTITUTION:A lid body 12 is formed from the first layer part 12A faced to a con tainer main body 11 and the second layer part 12B superposed on the first layer part 12A in a releasable manner and the interlaminar release strength of both layer parts 12A, 12B is made smaller than the bonding strength of the seal part 13 between a flange part 11A and the lid body 12. The unsealed part 15 communicating with the receiving part provided to the central part of a container is formed on the center side of the container from the seal part 13 and a notch 16 is formed to the first layer part 12A of the lid body 12 faced to said unsealed part 15 so as to be separated by a dimension T from the inner edge of the seal part 13. The engaging part 20 consisting of the protruding part 21 formed along the outer periphery of the lid body 12 and the recessed part 22 formed to the inner periphery of the container, main body 11 is formed on the center side of the container from the flange part 11A. |
