| 摘要 |
The invention relates to a process and to an apparatus for producing packaging bags, envelopes and the like from web-like material, having a plurality of stations, including a side-folding station, in which the material is processed, which includes being cut to size, provided with preformed longitudinal and transverse creases and adhesive, folded and, finally, finished off, the drying of not yet set adhesive also being covered here. The core of the invention is that, during the processing in at least one of the various stations, the web-like material is transported on a moving underlying surface and, at the same time, is retained on the underlying surface with the aid of negative pressure. |
