METHOD AND DEVICE FOR BLOW-MOLDING CONTAINERS WHICH ARE STERILE AT LEAST IN SOME AREAS

摘要

A method and a device for producing blow-molded containers which are sterile at least in some areas. A preform made of a thermoplastic material is first heated in a heating device on a transport path through a blowmolding machine and then supplied with a pressurized fluid in a blow-molding device. The preform is guided along a channel, which conducts a sterilizing gas, at least over one sub-section of the transport path of the preform. The transport path of the preform out of the channel is supplied with the sterilizing gas in order to produce a sterilizing gas corridor in which at least the opening region of the preform is guided. Multiple radiation sources are arranged along the channel and one behind the other in the transport direction. The radiation sources emit a sterilizing radiation onto the preform and/or onto the channel, and/or onto the sterilizing gas corridor.