| 摘要 |
An insulating container (10) comprising a cylindrical shell part (11) having an opened upper part, a bottom part (12) covering the bottom part of the shell part (11), and a sleeve (10B) inserted between a cup main body (10A) having an inner surface at least on which polyolefin resin layer is formed and the outer peripheral surface of the shell part (11) of the cup main body (10A) with a clearance provided between them, wherein ribs (13, 13') are formed on the cup main body (10A) in the direction that the ribs surround the shell part (11) of the cup main body (10A), and the cup main body (10A) is formed so that the outside diameter of the opening part at the upper end of the shell part (11) is larger than the height of the cup main body (10A), whereby a paper insulating container stable in shape and insulation, easy to handle, excellent in design, high in flexibility of printing expression, sanitary, and less in load on environment can be provided while it is formed nearly in china bowls or bowls.
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