| 摘要 |
PROBLEM TO BE SOLVED: To provide a bag-in-box in which an internal bag is not torn during packaging and an outer box after packaging is hardly deformed.SOLUTION: A bag-in-box comprises: an outer box 10; and an internal bag which is stored from an opened one surface of the outer box. The outer box comprises: a pair of front and rear first side surface plates 101, 102; a pair of left and right second side surface plates 103, 104; and inner flaps 105, 106 extending from surfaces of the pair of first side surface plates respectively. When the respective inner flaps are folded inward, gaps a, b are formed between the respective inner flaps and the other ones of the pair of the second side surface plates, by making width of the inner flaps narrow. The gaps are disposed on two positions positioned on diagonal positions. On two positions positioned on the other diagonals, the inner flaps contact the other ones of the pair of the side surface plates. |
