Patent ID: 6327837
Filing Date: 2001-12-11
Classification: B65B,B65D

Abstract:
A method of making reclosable packages, said method comprising the steps:providing a supply of package making material and advancing said supply in a running direction; said supply of package making material including a length of thermoplastic film and;securing at least one reclosable zipper assembly to said thermoplastic film transverse to said running direction, said at least one reclosable zipper assembly preassembled with a first profile, a second profile; and a peel seal, said first profile including an interlocking member and a flange extending from said interlocking member; said second profile including an interlocking member interlockable with said first profile interlocking member and a flange extending from said second profile interlocking member in the same direction as said first profile flange, said second profile flange attached to said first profile flange by said peel seal; wherein the zipper assembly is secured to said thermoplastic film at said second profile flange;folding said thermoplastic film so as to bring its longitudinal edges together;sealing said longitudinal edges together to form a package having opposing walls;sealing at least said first profile flange to the inner surface of one of said opposing package walls without sealing said flanges to each other;cross-sealing the package walls to form the top of the package and the bottom of a succeeding package; andcutting the completed package from said thermoplastic film;wherein said thermoplastic film includes at least one perforation positioned transverse to said running direction and positioned between said interlocking members and the point of attachment of said second profile flange to said thermoplastic film andwherein when said thermoplastic film is folded along said running direction to bring its longitudinal edges together and longitudinally sealed to form a tube having opposing wall portions said zipper assembly is thereby positioned between said opposing wall portions of said tube and each of said opposing wall portions includes said perforation in a generally opposing relationship and wherein said cross-sealing comprises cross-sealing said opposing wall portions at a location spaced upstream of said interlocking members so that said wall portions surround said interlocking member and said perforations are positioned between said interlocking members and the point of attachment of said profile flanges to said thermoplastic film nearest to said interlocking members.