| 摘要 |
<p>Thin-walled can bodies (10) made by the DWI process are aseptically filled with a non-carbonated liquid food product at ambient temperature. The aseptic process comprises, within a sterile environment, sterilising the can bodies by hot air in a first oven (36) and filling them in a filler (40) with a metered dose of the product, sterilising end closures (11) for the cans in a second oven (42) again by hot air, and placing the end closures on the cans whilst still at an elevated temperature so as to form closed packages having a temporary aseptic seal, moving the closed packages from the sterile environment, and, subsequent to the sterile environment, double-seaming the end closures onto the can bodies to form hermetically sealed cans, and reforming the end closures inwardly of the cans so as to create in the cans a positive internal pressure by which panelling of the can side walls may be resisted.</p> |
