Abstract: A package bag made by a packaging laminate film and provided midway between both side portions with a back-lined portion and a filling space of a liquid packing material, wherein the back-lined portion is sealed on its peripheral edge with an outer edge seal part, an inner edge seal part, an upper edge seal part and a lower edge seal part, while an internal side of these seal parts is defined by a partition wall of these seal parts into a self-supporting stable portion and a pouring path communicating to a pouring port disposed in the outer edge seal part; and the inner edge seal part is provided with a first easy-peelable portion separating the self-supporting stable portion and the filling space and a second easy-peelable portion separating the pouring path and the filling space, and the first easy-peelable portion is preferentially peeled by pushing the filling space.

Abstract: A package bag made by a packaging laminate film and provided midway between both side portions with a back-lined portion and a filling space of a liquid packing material, wherein the back-lined portion is sealed on its peripheral edge with an outer edge seal part, an inner edge seal part, an upper edge seal part and a lower edge seal part, while an internal side of these seal parts is defined by a partition wall of these seal parts into a self-supporting stable portion and a pouring path communicating to a pouring port disposed in the outer edge seal part; and the inner edge seal part is provided with a first easy-peelable portion separating the self-supporting stable portion and the filling space and a second easy-peelable portion separating the pouring path and the filling space, and the first easy-peelable portion is preferentially peeled by pushing the filling space.