| 摘要 |
PROBLEM TO BE SOLVED: To provide a plastic bag body with a chuck on which a tamperproof for confirming an unopened condition is partly formed. SOLUTION: In the plastic bag body with the chuck, a tearable part is processed in such a way that only a restricted part can be easily torn and broken when an external force for opening is applied on either one face or both faces of a film surface on which a male chuck of the bag body is formed and a film surface on which a female chuck is formed, between an end edge and a chuck part on an opening part side of the bag body. The central part of the part which can be torn and broken is heat-sealed under a condition where both faces are brought into contact with each other to form the tamper- proof.
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