| 摘要 |
PROBLEM TO BE SOLVED: To provide a gusset packaging bag having a back seal which is manufactured in a relatively simple manner, capable of maintaining a sealed state of contents by a packaging body, easily unsealable by fingers, and allows easy separation of the contents from the packaging bag or easy taking out of the contents. SOLUTION: The packaging bag of the modified hexagonal-cylindrical shape has six side faces and back seals demarcated by six ridges substantially parallel to each other, and an opposing pairs of the six ridges form valley-folding lines which are folded inwardly. The back seals are provided on the side faces not including the valley folding lines, and strip-shaped adhesive portions are provided along two ridges adjacent to at least one of the valley folding lines out of the six ridges. An unsealing starting means is provided between the back seal and the strip-shaped adhesive portion in at least one end of both ends of the modified hexagonal cylinder. COPYRIGHT: (C)2006,JPO&NCIPI
|
