Title:
METHOD FOR STERILIZING PREFORM AND RESIN CONTAINER
Document Type and Number:
WIPO Patent Application WO/2016/047607
Kind Code:
A1
Abstract:
The present invention increases the sterilizing effect of hydrogen peroxide on a preform or a resin container. The present invention subjects the inner surface of a preform or a resin container to a corona discharge treatment including: a voltage application step for applying a voltage produced by a corona discharge to an electrode capable of passing through the opening in a preform or resin container comprising a material having polyethylene terephthalate as a principal component thereof; an insertion step for inserting the electrode to which the voltage has been applied into the preform or resin container through the opening; and a floor section treatment step for treating the inner surface of the floor section of the preform or resin container by bringing the electrode close to the floor section thereof, until the state of corona discharge from the electrode changes. Thereafter, the present invention subjects the preform or resin container to a sterilization treatment including a hydrogen peroxide supply step for spraying a hydrogen peroxide mist or gas or mixture thereof into the preform or resin container.
Inventors:
SATO YOSHINORI (JP)
TSUCHIYA HIROTAKA (JP)
TSUCHIYA HIROTAKA (JP)
Application Number:
PCT/JP2015/076723
Publication Date:
March 31, 2016
Filing Date:
September 18, 2015
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
B65B55/04; A61L2/18; A61L2/20; A61L2/22; B65B55/02; B65B55/10
Foreign References:
| JP2003034314A | 2003-02-04 | |||
| JPH0999922A | 1997-04-15 | |||
| JP2006036341A | 2006-02-09 |
Other References:
See also references of EP 3199462A4
Attorney, Agent or Firm:
INTECT INTERNATIONAL PATENT OFFICE et al. (JP)
Patent business corporation Intect International Patent Office (JP)
Patent business corporation Intect International Patent Office (JP)
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