Pouring spout seal for composite packagings

摘要

The spout seal for combipacks consists of a bottom part ( 2 ) and a hinged lid ( 1 ) attached to it for opening and closing the seal. The bottom part ( 2 ) is fused onto a combipack with its level bottom side. It has a circular, upward-projecting overhang ( 11 ), which forms a pouring spout. The inside of the overhang ( 11 ) is open. The lid ( 1 ) forms a mold ( 21 ) that bulges out upwards on it when swiveled open, which forms a level top side that form-fits into the clearance opening ( 9 ) surrounded by the projecting lip ( 11 ) in the bottom side of the bottom part ( 2 ) when swiveled shut. This level top side either lies flush with this bottom side of the bottom part ( 2 ) or projects downward from this bottom side by up to 0.5 mm. This top side of the bulge ( 21 ) is bonded with the punched-out spot in the combipack or fused with the sealing foil of a combipack exposed through punching. When swiveling the lid ( 1 ) open, the sealing foil is cleanly torn out in the entire clearance section of the bottom part ( 2 ).