An automated reclosable packaging manufacturing equipment for applying zipper tape to bag making film, especially as part of a form-fill-seal process, and a method of joining a zipper flange of a zipper assembly to bag making film without “seal-through” of the zipper flanges. The method comprises...http://www.google.com.au/patents/US6895725?utm_source=gb-gplus-sharePatent US6895725 - Method and apparatus for sealing zippers to bag making film
