| 摘要 |
PROBLEM TO BE SOLVED: To easily and inexpensively manufacture a packaging bag by enabling an easy-to-open line to be formed even in the case of nonuse of a laser processing machine.SOLUTION: A packaging bag 1 includes a pair of side edge seal parts 3a, and the pair of side edge seal parts 3a is provided with a notch 5. On a front-side film 10, a pair of easy-to-open lines 11a and 11b is provided with the notch 5 in between. On a backside film 20, a pair of easy-to-open lines 21a and 21b is provided in such a manner as not to overlap the pair of easy-to-open lines 11a and 11b.SELECTED DRAWING: Figure 1 |
