| 摘要 |
PROBLEM TO BE SOLVED: To provide a bag body so constituted as for its opening part to be easily opened after unsealing the bag body in which contents can be enclosed air-tight. SOLUTION: Separation lines 3A, 3B are formed, in the vicinity of the upper edge section of the bag body 2, the lines rendering it easy to unseal, the bag body being capable of air-tightly enclosing contents C in such a state as not to be unsealed, while the separation lines 3A, 3B are such that they bring step sections 5A, 5B to be formed, at least in a part, at the upper ends 4a, 4b, of the opening section 4 of the bag body 2 to be unsealed by using the separation lines 3A, 3B. The step sections 5A, 5B have different heights from the front to the reverse ones. COPYRIGHT: (C)2010,JPO&INPIT
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