| 摘要 |
<P>PROBLEM TO BE SOLVED: To achieve a structure in which a part to be held by fingers readily appears upon opening of a zipper by cleaving a cut line having a predetermined shape on a zipper upper part upon opening of a sealed bag, in relation to a bag provided with a cleavage shape in advance so that front and back cleavage surfaces are cleaved to have different shapes so that the front and back cleavage surfaces of the bag does not share the same line, particularly in a sealed bag equipped with a zipper. Ž<P>SOLUTION: In the sealed bag, part of the material constituting the bag on which the shape that facilitates opening of the zipper by fingers is to appear on the upper part of the zipper part. The part is provided with the structure which generates cut lines having uneven stepped shapes or different shapes on the front and back of the bag upon opening. Thus, the opening part of the zipper upper part is cleaved to have different levels laterally or different shapes. Therefore, upon opening of the zipper, the film of the cleaved part can be smoothly held by the fingers. Ž<P>COPYRIGHT: (C)2010,JPO&INPIT Ž
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