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), having, along a longitudinal portion (2a) thereof, a succession of pre-applied opening devices (5) and adapted to be transformed in a plurality of sealed packages containing a pourable food product; the unit (3) comprises a bath (8), containing a sterilizing agent in which the web (2) with the opening devices (5) is advanced, and an aseptic chamber (9) connected to an outlet (13) of the bath (8) and housing drying means (21) for removing residual sterilizing agent from the web (2); the drying means (21) comprise ejecting means (41) located at a distance from the outlet (13) of the bath (8) and configured so as to direct a stream of air transversally to the web (2) and onto the longitudinal portion (2a) of the web (2) provided with the opening devices (5).