| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a container which surely keeps sealing properties of the content on the assumption that freezing is performed under a sealed condition, and in addition, can simply release a lid material from a container body, and also to provide its sealing method. <P>SOLUTION: A strongly welding part 2A, between the container body 20 and the lid material 30 having an adhesive force so that the content is not leaked, is formed on the inner peripheral side of the flange 24 of the container body 20 opposing to the inside of an opening tab 32 of the lid material 30, and a weakly welding part 3 between the container body and the lid material having an adhesive force weaker than that for the strongly welding part 2A is formed on the outer peripheral side of the strongly welding part 2A on the flange 24. <P>COPYRIGHT: (C)2007,JPO&INPIT |
