Toyo Seikan Group Holdings, Ltd.

Toyo Seikan Co., Ltd.

Kota Okamoto

Yosuke Akutsu

Shinya Seito

Takayuki Ishihara

Shinya Iwamoto

Keisuke Nyuu

Tomoyuki Miyazaki

Kousuke Ueda

Saya Sugioka

A packaging material having a contact surface formed of a thermoplastic resin that is adapted for contacting a viscous content. The contact surface is a mirror surface having a roughness Sa of not more than 100 nm and a water contact angle of not less than 60&#xb0; C. at 20&#xb0; C.

Packaging material

A package including a container body () containing a fluid content () with leaving a head space (), wherein the container body () has an inner surface () on which ruggedness is formed entirely, the inner surface () with the ruggedness of the container body () is coated with a lubricating liquid () immiscible with the fluid content (), and the lubricating liquid () is present as a coating layer interposed between the inner surface () and the fluid content (), and the lubricating liquid () for forming the coating layer forms a liquid pool () at a periphery of an upper end face of the fluid content () contained in the container body () in a state of being held upright.

Package containing fluid content

A package for low temperature storage includes a container accommodating fluid contents, and is stored under a low temperature environment at 10&#xb0; C. or lower. A lubricating layer derived from a slip improving agent is formed on the inner surface of the container. The fluid contents are in contact with the lubricating layer. When the storage environment temperature of the package is t&#xb0; C. and the cloud point of the slip improving agent is c&#xb0; C., the following condition: t&#x3c;c+30 is satisfied.

Package for storage under low temperature environment and method using same

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Yokohama, Japan

Kota Okamoto