Film bag

Abstract

A film bag having a bag body is formed with two front walls. A first lateral edge, which is formed by at least the two front walls, is connected at a first corner of the bag body to an upper bag edge. At the upper bag edge, the two front walls are interconnected by a fastening seam. Each of the front walls has, at the first corner, multiple lines of weakness that extend, in a curve and spaced from each other, from the first lateral edge up to the fastening seam. A tear-open aid is situated on the fastening seam. At least three lines of weakness are provided. The tear-open aid is designed and situated in such a way that the aid allows for a tearing-open, at the upper bag edge, between any two adjacent lines of weakness.

What is claimed is: 
     
         1 . A film bag having a bag body, comprising:
 two front walls;   wherein a first lateral edge is formed from at least the two front walls and is connected at a first corner of the bag body to an upper bag edge;   wherein the two front walls are interconnected at the upper bag edge by a fastening seam;   wherein each of the two front walls comprise, at the first corner of the bag body, at least three lines of weakness that extend in a curve, and that are spaced from each other, from the first lateral edge at least up to the fastening seam; and   wherein a tear-open aid is designed and situated on the fastening seam to allow for a tearing-open, at the upper bag edge, between any two adjacent lines of weakness, precisely at each line of weakness or both.   
     
     
         2 . The film bag according to  claim 1 , wherein the lines of weakness have a convex shape beginning at the first corner of the bag body. 
     
     
         3 . The film bag according to  claim 1 , wherein all lines of weakness enclose an angle, at an end thereof assigned to the upper bag edge, of more than 60° with the upper bag edge. 
     
     
         4 . The film bag according to  claim 1 , wherein the lines of weakness are arranged in the shape of a curve, at different distances from each other, about a common reference point. 
     
     
         5 . The film bag according to  claim 4 , wherein the lines of weakness extend, as quarter circles, concentrically about a center point situated at the first corner. 
     
     
         6 . The film bag according to  claim 1 , wherein the lines of weakness are equidistantly arranged. 
     
     
         7 . The film bag according to  claim 1 , wherein the distance between adjacent lines of weakness is between 7 mm and 30 mm. 
     
     
         8 . The film bag according to  claim 1 , wherein the lines of weakness are created by a laser. 
     
     
         9 . The film bag according to  claim 1 , wherein the tear-open aid is formed from a zigzag cut. 
     
     
         10 . The film bag according to  claim 1 , wherein the lines of weakness extend on the upper bag edge, beginning at the first corner, over a range between 10% and 45% of the bag width determined along the upper bag edge. 
     
     
         11 . The film bag according to  claim 1 , wherein the bag body comprises further lines of weakness at a second corner formed between the upper bag edge and a second lateral edge, and wherein the further lines of weakness have a convex shape beginning at the second corner. 
     
     
         12 . The film bag according to  claim 1 , wherein the bag body is formed exclusively from the front walls.