Patent ID: 8349108
Filing Date: 2013-01-08
Classification: B31B,B65B,Y10T

Abstract:
1. A method of making a reclosable bag, the method comprising the steps of sequentially: unwinding and advancing a strip of plastic film in a travel direction parallel to edges of the strip of film; forming in the film at a spacing from one of the edges and from a centerline of the strip a continuous perforation line extending in the direction; fixing a pair of interfittable seal elements to the film directly at the perforation line with the perforation line aligned under a center of the pair of seal elements and the seal elements extending directly from the one edge to the centerline of the strip; folding the strip at the centerline and juxtaposing the edges of the strip; and transversely welding the strip together at a transverse seam at a leading edge of the seal elements and longitudinally sealing the edges of the film together at a longitudinal seam to form the strip into a bag open upstream in the travel direction.