Folded paper bag mfg. process

摘要

The bag mfg. process is applied to a strip (1) of paper, to which a connecting material is applied. The strip is perforated as required for the bag, and longitudinal stripes of glue are applied. The strip is formed into a tube, brought together and cut into the separate bags. The bottom is then folded and the corners (25) are closed. The connecting material is only applied to the paper strip in the zones at the bottom (20) and round the closing bag aperture (31). Hot-sealing or cold-sealing flue may be applied for this purpose.