PHYSICOCHEMICAL STERILIZING METHOD AND APPARATUS

An object such as a food packaging material is sterilized by being first immersed in ethanol or other alcohol and then by being irradiated with ultraviolet rays. Alternatively, the object is simultaneously subjected to both steps of sterilization, by being exposed to ultraviolet rays while being dip...

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Bibliographische Detailangaben
1. Verfasser:	HYAKUTOME, KIMIAKI
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	CONVEYING FOODS OR FOODSTUFFS FOODS, FOODSTUFFS, OR NON-ALCOHOLIC BEVERAGES, NOT COVERED BYSUBCLASSES A23B - A23J HANDLING THIN OR FILAMENTARY MATERIAL HUMAN NECESSITIES MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGINGARTICLES OR MATERIALS PACKING PERFORMING OPERATIONS PRESERVATION OF FOODS OR FOODSTUFFS, IN GENERAL STORING THEIR PREPARATION OR TREATMENT, e.g. COOKING, MODIFICATION OFNUTRITIVE QUALITIES, PHYSICAL TREATMENT THEIR TREATMENT, NOT COVERED BY OTHER CLASSES TRANSPORTING UNPACKING
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Beschreibung
Zusammenfassung:	An object such as a food packaging material is sterilized by being first immersed in ethanol or other alcohol and then by being irradiated with ultraviolet rays. Alternatively, the object is simultaneously subjected to both steps of sterilization, by being exposed to ultraviolet rays while being dipped in ethanol. The ethanol is itself sterilized, as by filtration and ultraviolet irradiation, while being recirculated through a closed circuit. The apparatus is disclosed as adapted for the sterilization of a continuous strip of food packaging film.