Preform sterilization method and content filling method and device

A preform and sterilizing device technology, which is applied in packaging, bottling machines, liquid bottling, etc., can solve the problems of bactericide corrosion in forming machines, achieve simple filling and increase manufacturing speed
CN104169176BActive Publication Date: 2017-04-12DAI NIPPON PRINTING CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
DAI NIPPON PRINTING CO LTD
Publication Date
2017-04-12

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Abstract

The invention provides a method for sterilizing a preform, which can sterilize the preform simply and rapidly. Spraying superheated steam (S) made of water on the entire inner and outer surfaces including the mouth portion (1a) of the preform (1) with a pressure higher than the atmospheric pressure of 200° C. to 500° C. (1) Bacteria on the inner and outer surfaces are sterilized.
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Description

technical field

[0001] The present invention relates to a method for sterilizing preforms used for making containers such as bottles, and a method and device for filling beverages and the like. Background technique

[0002] Conventionally, it has been proposed to carry out PET (polyethylene terephthalate) preforms while spraying a bactericide gas such as hydrogen peroxide on the preforms to sterilize them, and to use a blow molding machine to sterilize the preforms. An aseptic filling method is an in-line system in which a preform is formed into a bottle, the bottle is filled with a beverage, and capped to form an aseptic package (see, for example, Patent Document 1).

[0003] In addition, it is also proposed to attach the evaporated sterilant to the preform and discharge the remaining sterilant by using the flame of the burner (for example, refer to Patent Document 2.) or to spray the vapor of the bactericide on the preform, and then A method in which a preform is heated a...

Claims

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