| 摘要 |
PROBLEM TO BE SOLVED: To provide a polyethylene bag which can be opened easily without using a special opening tool.SOLUTION: A polyethylene bag comprises a pair of facing flat surface parts 12, 13 and a pair of facing gusset-shaped side surface parts folded inside. In the pair of side surface parts, one side surface part is constituted by a first gusset part 15 and a second gusset part 16, and the other facing side surface part is constituted by a third gusset part 17 and a forth gusset part 18 arranged on a diagonal line with respect to the first gusset part. The width of the first gusset part 15 is formed wider by 2 mm or more than the width of the second gusset part 16, and the width of the third gusset part 17 is formed wider by 2 mm or more than the width of the forth gusset part 18. |
