| 摘要 |
A standing-pouch liquid storage bag in which a bottom forming film folded in half is disposed with a crease provided on the upper end of the bottom forming film at a predetermined position of a bag sheet material folded in half with one side, a bottom side and an other side of the liquid storage bag are closed by heat sealing, and heat sealing is performed on a portion of the one side except for a given length from the upper end of the liquid storage bag to construct a bag main part, wherein at least the one side is cut so as to align one end of the bottom forming film with the side portion of the bag main part, so that the lower part of the liquid storage bag is narrower than the upper part of the liquid storage bag.
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