| 摘要 |
PROBLEM TO BE SOLVED: To solve such problems that scissors or a cutter knife as an opening tool are required when opening a rectangular bottom bag with a sealing flap, the bag may be broken when torn by hands and cannot be reused as a bag for storage or a bag for home delivery, and trash is generated in a cut tape or a zipper opening method.SOLUTION: A sealing flap for a packaging bag is provided with a cut perforation processing line having a chevron shape. In the packaging bag, by opening the packaging bag along the cut perforation processing line having the chevron shape from the apex of the chevron shape, it can be finely opened by hands without generating trash or without using a tool. Furthermore, there is no risk of damaging the contents by the opening tool. |
