Method of preparing zipper for gusset bags

摘要

The profiles (12) of a segment (22) of profile zipper are separated and then the profiles (12) at the central portion of the segment (22) are rejoined while the profiles (12) at the ends of the segment (22) are maintained separated. The segment (22) is transported to overlie a bag film web (62) transverse to a moving direction of the web and attached to it. The web (62) is formed into a reclosable bag with side wall gusset portions of web tucked between the separated profiles (12).