A unit for sterilizing a web of packaging material for a machine for packaging pourable food products

摘要

There is described a unit (3) for sterilizing a web (2) of packaging material advanced along a given path (P2, P3), said web (2) having, along a longitudinal portion (2a) thereof, a succession of pre-applied opening devices (5) and being adapted to be transformed in a plurality of sealed packages containing a pourable food product, said unit (3) comprising drying means (21) for removing residual sterilizing agent from said web (2), wherein said drying means (21) comprise ejecting means (41) configured so as to direct a stream of air transversally to said web (2) and onto said longitudinal portion (2a) of said web (2) provided with said opening devices (5), said ejecting means (41) comprising at least a first outlet area (56), from which said stream of air is issued and which is elongated along a first direction (R) parallel to said web (2) and transversal to the travelling direction of the web (2) at the zone of said ejecting means (41).