| 摘要 |
PROBLEM TO BE SOLVED: To provide a packaging bag which is provided with a fold-scheduled part so as to traverse a stored-object pouring passage reaching the bag upper part and a wide face seal thin plate provided in parallel with the stored-object pouring passage and reaching the bag upper part and a seal part of the bag side part, further ensures an engagement state in which the packing bag is folded at the fold-scheduled line and engaging parts are engaged with each other, and maintains the closed state of the stored-object pouring passage while keeping the folded state of the packaging bag even when the folded packaging bag is handled carelessly.SOLUTION: A fold auxiliary part 22 comprising a linear weakened line 23, which is a perforation or a half-cut, is provided at a position of a fold-scheduled part 14 of a seal thin plate 13. One end 25 on the side of one bag side part 7 in the fold auxiliary part 22 is brought close to the side edge of the one bag side part 7 in a non-reaching state. A difficult-to-tear part 26 is provided between the one end 25 of the fold auxiliary part 22 and the side edge of the one bag side part 7.SELECTED DRAWING: Figure 1 |
