Large-volume packing container for bitumen

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 100° to 110° 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.