초록 ▼

An opening arrangement for packing containers comprising a prepunched opening which is covered by a tear-off cover strip and a pouring rim element positioned between a wall of the packing container and the cover strip. In one of the embodiments, the pouring rim strip has an edge portion which projec

An opening arrangement for packing containers comprising a prepunched opening which is covered by a tear-off cover strip and a pouring rim element positioned between a wall of the packing container and the cover strip. In one of the embodiments, the pouring rim strip has an edge portion which projected partially over the opening of the packing container and a liquid-tight layer is joined to both an inside surface of the packing container wall and the edge portion of the pouring rim strip, as well as to a portion of the cover strip positioned over the opening. The application of the pouring rim as well as the manufacture of the opening arrangement as a whole are facilitated by joining in advance the pouring rim in a detachable manner to the cover strip, so the cover strip and the pouring rim can be applied as a unit.

대표청구항 ▼

In an opening arrangement for a packing container of the type including a packing container wall having a pouring opening, a removable cover strip applied over said pouring opening and a pouring rim element situated between the cover strip and the packing container wall, wherein the improvement comp

In an opening arrangement for a packing container of the type including a packing container wall having a pouring opening, a removable cover strip applied over said pouring opening and a pouring rim element situated between the cover strip and the packing container wall, wherein the improvement comprises the pouring rim element being joined to the cover strip by a first seal and said pouring rim element being joined to the packing container wall by a second seal, the first seal between the pouring rim element and the cover strip being weaker than the second seal between the pouring rim element and the packing container wall, said pouring rim element having an edge portion extending along said pouring opening, said edge portion projecting partially over said pouring opening, and a liquid-tight layer of material closing said pouring opening, said layer being joined to an inside surface of said packing container wall about said pouring opening and being joined to said edge portion and to said cover strip through said pouring opening, whereby upon opening of the packing container and pouring contents therefrom, said liquid-tight layer substantially prevents contents from being absorbed between said container wall and said rim element.