Abstract: 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.

Abstract: A cooling roller of a cooling machine for continuously and quickly cooling a high temperature sheet. The cooling roller comprises a rotary shaft, and a cylindrical outer wall and end walls mounted on the shaft and forming an enclosure are mounted on the shaft. A tube bundle extends through the enclosure close to the outer wall, the tube bundle having an inlet and an outlet for a cooling fluid. The heat transfer area of the tube bundle is larger than the inner area of said outer wall, and the inner area of the outer wall is covered with a heat transfer accelerating device. A heat transfer liquid, which repeats evaporation and condensation cycles during use is sealed within the enclosure.