Flexible film package bag

Abstract

To provide a package bag that can be easily opened, while preventing unintentional breakage or opening. A flexible film package bag 1 comprises: a sealed portion 2 in which a flexible film is joined; and a plurality of notches 4 for opening. The plurality of notches 4 are provided in such a way that an end thereof on an outer edge portion 6 side of the flexible film package bag 1 is positioned away from the outer edge portion 6 by a predetermined distance. Since the outer edge portion 6 has neither a cutout nor slit and all notches 4 are away from the outer edge portion 6 , there is no risk of unintentional breakage or opening and the package bag can be easily opened as necessary.

1 . A flexible film package bag comprising:
 a sealed portion in which a flexible film is joined; and   a plurality of notches for opening,   wherein the plurality of notches are provided in such a way that an end thereof on an outer edge portion side of the flexible film package bag is positioned away from the outer edge portion by a predetermined distance,   
       wherein the plurality of notches have a shape enclosed by: a plurality of linear portions that are parallel to each other or a plurality of linear portions that extend radially from an inner side to an outer side; and curved portions that connect both ends of the linear portions respectively, and
 wherein the linear portions penetrate the flexible film, and the curved portions are connected to the flexible film. 
 
     
     
         2 . (canceled) 
     
     
         3 . The flexible film package bag according to  claim 1 , wherein length (L) of each of the plurality of the notches and thickness (P) of the sealed portion satisfy the following relationship (1)
   4.0 <L/P   (1).
   
     
     
         4 . The flexible film package bag according to  claim 1 , wherein an outer edge portion on an outer side of a part in which the notch is provided has a concave portion formed by cutting out a trapezoidal shape in an inward direction. 
     
     
         5 . The flexible film package bag according to  claim 1 , wherein an outer edge portion on an outer side of a part in which the notch is provided has a convex portion that projects in a trapezoidal shape in an outward direction.