pouring edges in the form of projecting material strips are used on packing containers for e . g . liquid foodstuffs . the pouring edge is generally covered by a tear - off cover strip 6 which also serves as a closure for a pouring opening 7 . in order to prevent the pouring edge strip 8 from being torn off or deformed at the removal of the cover strip 6 , the same is given a z - folded form and is joined to the outside of the packing container in two sealing areas situated at a distance from each other , the doubled area located in between projecting from the packing container and guiding the out - flowing liquid .