Patent ID: 6751932
Filing Date: 2004-06-22
Classification: B31B,B65B

Abstract:
A method for attaching a reclosable zipper strip to a sheet of thermoplastic film material for use in the production of plastic bags or packages, said method comprising the steps of:providing a reclosable zipper strip having a male interlocking profile and a female interlocking profile, said male interlocking profile having a male interlocking member and said female interlocking profile having a female interlocking member, one of said male and female interlocking profiles having a web integrally formed with its respective interlocking member on both lateral sides thereof and the other of said male and female interlocking profiles having a web integrally formed with its respective interlocking member on at least one lateral side thereof; removing preselected amounts of said webs from said reclosable zipper strip at preselected intervals therealong; without removing any portion of said interlocking profile; guiding said reclosable zipper strip into position for attachment onto said sheet; cutting through said male and female interlocking profiles where said preselected amounts of said webs have been removed to provide desired lengths thereof; and attaching said desired lengths of said reclosable zipper strip onto said sheet of thermoplastic film material at package-length intervals therealong.