| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper-made container which is easily fabricated out of blanks in a forming mold, hardly deformative though it is strong, can be sufficiently sealed up at its flange with a sealing lid and accommodative to environmental problems. SOLUTION: The paper-made container comprises a paper-made container main body fabricated out of a main blank and a sub-blank mainly made of paper and an inner protection film layer made of a thermoplastic resin film and stuck closely to the internal surface of the paper-made container main body. The main blank is formed of a frame-shaped flange and side faces and the sub-blank is composed of a bottom face, side faces and superposable pieces, and each of the superposable pieces is connected with a crease to one of the side faces which are adjoining each other when the paper-made container is fabricated, and each of the superposable pieces is superposed on each of the side faces on the other side. A dent or a vent is provided at a part on each of portions where each of the superposable pieces is superposed of the side faces, and the superposable pieces are superposed on the outside of each of the side faces, or a dent or a vent is provided at each of the superposable pieces and superposition is made at the inside of each of the side faces. |
