| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag opened by tearing up from a notch, and openable by linearly tearing up to the last part.SOLUTION: A packaging bag is such that: a notch 6 to be an opening start place is provided at least on one side of a side edge part; an almost V-shaped or U-shaped opening guide line 7 comprising a cut is provided at both front surface side and rear surface side on a base material layer of both front and rear surfaces near a bag center side from the notch 6 so as to be collected to the bag center side; a linear opening schedule line 8 comprising a cut is provided from the tip where the opening guide line 7 is collected to the bag center side, on the base material layer of both front and rear surfaces; and at least one linear opening auxiliary line 9 comprising a cut in parallel to the opening schedule line 8 is provided at each of both sides of the opening schedule line 8 on the base material layer of both front and rear surfaces, in a state not crossing the opening guide line 7. Even when tearing is out of the opening schedule line 8, cutting property is retained through guide of the opening auxiliary line 9 in the outside. |
