SELF-SUPPORTING BAG FOR PACKAGING FLUID

Japanese Patent JP3809694

B2

PROBLEM TO BE SOLVED: To provide a self-supporting bag for packaging a fluid in which an unsealed pouring opening is opened appropriately and the fluid can be stably poured although it is a self-supporting bag, and the pouring opening can be easily attached to a container opening, and which can be favorably used for packaging refills of various kinds of fluid. SOLUTION: A flexible material is folded at the center to form the front and rear bodies 1, 2 and one folded edge 3 and the other folded edge 4 oppositely arranged of the front and rear bodies 1, 2 are joined respectively. And the bottom 5 folded in to form a gusset is provided at the inside of the front and rear bodies 1, 2 to make it self-supportable. The upper ends of the front and rear bodies 1, 2 are formed to have a deformed seal part where a non-adhesion part 6b with a required width continuously extended from the bag inside to the folded edge 3 is left and used as the pouring opening 7 at the time when the non-adhesion part 6b is unsealed.