Provided is a bag making and packaging machine having superior workability in film joining work. A bag making and packaging machine is a bag making and packaging machine that uses film having at least one character or a figure printed on its front side, and is equipped with a film roll support unit, a conveyance unit, a bag making unit, and a light emitting component. The film roll support unit supports a film roll in which the film is wound in a roll. The bag making unit processes the film to make bags. The conveyance unit is positioned between the film roll support unit and the bag making unit. The conveyance unit feeds the film to the bag making unit. The light emitting component illuminates, from the direction of the front side of the film, the film positioned between the film roll support unit and the conveyance unit.

A process is for manufacturing bags and a bag forming web. A bag is produced therefrom. The process includes conveying a continuous printed web including printed features along a conveying direction. The continuous printed web is cut into printed web sections along the conveying direction, and at least two of the printed web sections include(s) portion(s) of the printed features. The printed web sections are spaced-apart and a second continuous web is inserted between adjacent ones of the spaced-apart printed web sections, while an alignment between the printed web sections including printed features is maintained one relative to the other, along the conveying direction. The second continuous web is secured to the adjacent and spaced-apart printed web sections along longitudinal adjacent edges, thus forming a combined continuous bag forming web. Bags are formed from the combined continuous bag forming web, and the features on the different printed sections of the bags are in alignment.

The present invention relates to improvements for reclosable polymeric bags. Disclosed is a polymeric film bag with film made from a blown film extrusion or a cast extrusion process. The bag is formed from a continuous multi-layer web of polymeric film. The bag comprises burn through side seals formed by a rotary drum that forms the sides of the bag and severs the film of the multi-layer film to form individual bags. Interlocking zipper stock is provided to the web and affixed to an upper end of the bag by an adhesive. Further disclosed is a high-speed continuous process and system for manufacturing the reclosable bags.

The present disclosure relates to thermoplastic bags with enhanced dart impact resistance. In particular, in one or more embodiments, the disclosed thermoplastic bags include a first sidewall and a second sidewall joined together along a first side edge, a second side edge, and a bottom edge, while having an opening opposite the bottom edge. Furthermore, in some embodiments, the disclosed thermoplastic bags have a pattern of raised rib-like elements and web areas formed in the first sidewall. In one or more embodiments, the pattern of raised rib-like elements and web areas comprises a first motif of deformations that repeats in the pattern and a second motif of deformations interspersed with the first motif of deformations within the pattern. In one or more embodiments, the web areas lack sharp corners. The interspersed motifs and/or the lack of sharp corners can serve to increase dart impact resistance of the thermoplastic bags.