| 摘要 |
The invention relates to a method and a device for manufacturing bags with thermoplastic pull strings, which are laid in hems along the edges of the sheet, the hems being welded on and the bags being divided by transverse welding of the side seams, in which double-layered pull strings by folding and severing a sheet strip are used and gripping holes and venting openings are punched into the laid-flat sheet web not yet folded to form hems. <IMAGE> |
