Resealable side-gusseted bag has conventional interlocking profile seal at its upper end connected to strips of plastic film welded to front and back walls of bag, gussets being closed by additional sealing strip welded to bag

摘要

The resealable side-gusseted bag has a conventional interlocking profile seal (8a, 8b) at its upper end. The profiles are connected to strips of plastic film (9, 9a) which are welded to the front and back walls (11, 11a) of the bag at their lower ends. The gussets (3) terminate below these welds and are closed by an additional sealing strip (12) which is welded (13) to the bag. An independent claim is included for a similar bag in which the gussets extend over the complete height of the bag and are closed one side by a weld connecting them to a bag wall and on the other by a weld connecting them with a profile strip.