Sun A. Chemical Industries Co., Ltd.

Shigeru Ito

Takuji Sugiyama

Tetsuro Ichikawa

A container packaging having a flanged container, and a cover member with which the container is tightly closed by heat sealing at the flange after being filled with a content stuff. This packaging can be easily opened to take out the content by separating the cover member with a human hand force in such a manner that as an end of the cover member is pulled upward, ply separation of a cohesion-destructive plastic layer progresses, or a portion of an outer peripheral threadlike protrusion reduced in thickness is broken and ply separation of cohesion-destructive plastic layer thereafter progresses to the position of an inner peripheral threadlike protrusion, and a portion of this protrusion reduced in thickness is broken.

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Shimizu, Japan

Shigeru Ito