| 摘要 |
PROBLEM TO BE SOLVED: To provide a self-supporting bag which can reduce discomfort at gripping.SOLUTION: A self-supporting bag comprises: a front face film part 4 and a rear face film part 5 which are facing each other; a side gusset part 6 and a side gusset part 7 in pair which are joined on both sides of the front face film part 4 and the rear face film part 5 and are tucked in between the front face film part 4 and the rear face film part 5; and a base gusset part 8 which is joined on the bottoms of the front face film part 4, the rear face film part 5, the side gusset part 6 and the side gusset part 7 and is tucked in between the front face film part 4 and the rear face film part 5. In a position more upward than the bottom edges of the front face film part 4 and the rear face film part 5, the side gusset part 6 and the side gusset part 7 are joined to the base gusset part 8. |
