Patent ID: 6575300
Filing Date: 2003-06-10
Classification: B31B,B65D

Abstract:
A method of producing a stack of plastic foil bags each of which comprises a flap projecting beyond a filling opening on one broad side of the respective bag, each of said bags having a corner tear-off segment formed by a region delimited by a row of perforations and formed in said corner region with at least one interlocking point joining said bags in said stack and a stack-incorporation means separate from said interlocking point and enabling assembly of said bags into said stack, said method comprising the steps of:folding a plastic foil web to provide broad surfaces of respective bags with flaps extending from one of the broad surfaces; perforating corner portions of said flaps to form tear-off segments along an arcuate perforation line; forming cross-slits in each of said tear-off segments near the respective perforation line; engaging pins in said slits to stack said bags together; and securing the stacked bag together within the tear-off segments.