| abstract |
An inner bag for bag-in-box capable of increasing an easiness in handling and convenience when a filled inner bag ( 1 ) for bag-in-box is handled without an outer box, where reinforced heat sealed parts ( 5, 5′ ) formed by cutting out side films ( 4, 4′ ) and sealing a front film ( 6 ) with a rear film are provided continuously or closely to heat sealed parts ( 2, 3 ) on an upper side on/or a lower side of the inner bag, or a holding part is provided formed by sealing the front film ( 6 ) with the rear film through or without through the side films ( 4, 4′ ) so that a not sealed part ( 17 ) between the side films ( 4, 4′ ) is formed at or near at least one corner part between the films and the heat sealed parts ( 2, 3 ) and so that, when a hand is accessed to the outside of the inner bag ( 1 ) through the not sealed part ( 17 ). |