| 摘要 |
PROBLEM TO BE SOLVED: To realize a certain easy opening means not restricted by a material of a bag body. SOLUTION: In a packaging bag wherein a pair of sheets 1A, 1B of which both sides become narrow toward the leading ends thereof are superposed one upon another and top part seal parts 2A, 2B and side surface seal parts 3A, 3B are sealed in such a state that the leading ends of both sheets are left as tabs 4A, 4B over a predetermined range so as to expand the bag into a plate- shaped triangular shape, a strip-like piece 10 is arranged between a pair of the sheets so as to be positioned on the rear side of either sloping surface and the tab 14 of the strip-like piece is bonded to the tab 4A of the sheet 1A on the side where the strip-like piece is positioned and slits P1 piercing these tabs at the same time to constitute an erecting piece P are provided.
|
