Patent ID: 7266934
Filing Date: 2007-09-11
Classification: B31B,B65B,Y10S

Abstract:
1. A method of making a reclosable bag, comprising the steps of: supplying a continuous web of bag-forming material in a first direction to a bag-forming station; attaching to the continuous web a plurality of zipper strips at intervals spaced in the first direction and extending transversely of the web, each zipper strip comprising first and second interengagable profiles pre-assembled into a least partial engagement with each other; forming end-sealed bags at the bag-forming station, each bag having opposed first and second walls, at least one of which is formed from the said continuous web of material, first and second end seals, and therebetween at least one of the zipper strips attached to a respective wall of the bag; and after the step of forming the end-sealed bags, treating the bags adjacent the respective zipper strip profiles in order to secure the profiles to the first and second walls respectively and to form an openable and reclosable seal inside the bags.