| 摘要 |
PROBLEM TO BE SOLVED: To prevent a film material from being torn out at its perforations during an operation in which the entire film material is peeled off from a container body. SOLUTION: When a lip 11 is pulled up, a laminate film material is started to be peeled off from seal protrusions 9 on the periphery of a storing part 4 adjacent to the lip 11. Then, the film meets with both adjoining seal protrusions 9, 9 over the perforations 12 adjacent to the seal protrusions 9 as indicated by a dotted line X. In regard to both adjoining seal protrusions 9, 9, peeling assistance portions 9a are formed at corner portions A, A where a force for peeling off the laminate film material is initially applied. COPYRIGHT: (C)2007,JPO&INPIT
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