| 摘要 |
A process and device are described for producing a continuous tubular film from a flat film web which is shaped by a shaping arrangement into a tubular film that is open on the longitudinal side with overlapping edges, the tubular film being continuously supplied to a sealing arrangement which welds the overlapping edges of the film on the longitudinal side to one another. The invention is distinguished by the fact that welding of the edges of the film in the sealing arrangement is effected by the application of hot air. |
