Toyo Seikan Kaisha, Ltd.

Mitsuo Tanioka

Shinji Yamamoto

Hidetoshi Koike

Kazuyuki Kurosawa

Tsutomu Iwasaki

Ken Takenouchi

Makoto Sawada

Yoshihiko Kimura

Takeshi Fukui

Katsumi Senbon

To provide a sterilization method of container-packaged food which has a high effect on mixture food of solid food/soup and a filling system where all processes and devices can be simplified, a pre-seal lid material (PS), that has been cut to a dimension covering the opening of a cup filled with solid food, e.g. a dimension corresponding to the outer circumference of the flange of the cup, is fixed to a cup holder (CH) at a position for covering the cup opening by means of a holding bolt () without being fusion bonded to the cup flange portion (CF), while a ventilation state between the head space of the cup and the air in a sterilization chamber is maintained. Thereafter, steam sterilization to the cup is performed in the sterilization chamber and the cup is transported to a clean box, filled with sterilized soup.

Sterilization method of container-packaged food and filling system

A method and apparatus for manufacturing pressurized packages capable of obtaining gas displacement pressurized canned goods with high accuracy of internal pressure by atomizing liquid nitrogen, and supplying it together with low temperature vaporized gases to a head space of a can. A spray device assembly ( ) for atomizing and spraying the liquid nitrogen is provided in an opening of the bottom of a liquefied gas storage tank ( ) formed as a vacuum heat insulating structure. The spray device assembly ( ) is constituted such that a valve ( ) for controlling the flow rate of liquid nitrogen, a spray nozzle ( ), a liquid nitrogen flowpassage ( ) extending from the valve ( ) to the spray nozzle ( ), a nozzle cooling tank ( ) for cooling the flowpassage, and a purge device for cutting an outer peripheral portion of a nozzle and an outlet portion off from the air, so as to prevent them from being frosted, are integrally mounted on a spray body The nozzle cooling tank ( ) always cools the pipe and the nozzle by liquid nitrogen, and enables supplying of the liquid nitrogen to the nozzle having a temperature gradient to the neighborhood of a boiling point, without boiling and vaporizing it from the tank to the nozzle. The liquid nitrogen supplied while preventing of being vaporized to an orifice inlet of the spray nozzle allows to pass through a nozzle orifice in the liquid state to release into the atmosphere, thereby giving rise to a rapid vaporizing expansion immediately after moving out of the nozzle orifice, so that other liquid nitrogen still in the liquid phase state is atomized.

Method and apparatus for manufacturing pressurized packaging body

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Yokohama, Japan

Mitsuo Tanioka