Method for sterilizing a plastic bottle
AssigneeToyo Seikan Kaisha, Ltd.
InventorsTakeshi Iwashita, Yonosuke Takahara, Kenichi Kominami, Ken Isogawa
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Abstract
A method for sterilizing a plastic bottle in an aseptic filling system according to which at least an inner surface or an outer surface of a bottle is sterilized by injecting a heated sterilizing fluid at 65° C.-90° C. while maintaining internal pressure of the bottle at 1 kPa-20 kPa.
Claims5
A method for sterilizing a plastic bottle by injecting heated water or a heated sterilizer from a nozzle mouth of a bottle onto at least an inner surface of the bottle comprising a step of sterilizing the bottle while pressurizing and heating the inside of the bottle and a step of cooling the bottle by supplying cold water on at least the inner surface or the outer surface of the bottle beginning immediately after completion of sterilizing of the bottle.
Dependencies are inferred from the claim text.