Patent ID: 8617679

Claim:
Large-volume packing container for bitumen, the container being made of flexible material and having a truncated pyramid-like basic shape prior to filling, wherein the container is closed at the top by a cover wall extending parallel to the bottom surface and having a preferably central filling opening, characterised in that in the temperature range from 100Â° to 110Â° C. the woven fabric forming the walls ( 1 , 2 , 3 , 4 , 5 , 6 ) has a stretching capacity of 10-25%, preferably 15-20%, in the direction of the warp and weft, wherein stabilizing means ( 14 ), such as pleats, seams, strips or the like are drawn or sewn into the lower region of the fabric panels forming the lateral walls ( 1 , 2 , 3 , 4 ) in order to stabilize the woven fabric to forces occurring obliquely to the warp and weft, each one of said stabilizing means ( 14 ) being positioned to run aslant from a lower corner area of its respective wall upwards toward an opposite corner seam of the wall.