Packaging compound film and packaging

摘要

The film (1) has a cover web (3) firmly attached on a carrier web (2) by an adhesion layer (4) apart from an opening (6) of the layer. The opening is free from adhesion substance. Another adhesion layer (5) is partially provided in a region of the opening and exhibits a reduced adhesion force than that of the former layer. The cover web is detachably placed on the carrier web in the region of the opening. The cover web includes a material weakening portion (7) i.e. stamped perforation portion, in a region of the opening. The carrier web includes a carrier film (8) made of aluminum.