| 摘要 |
PROBLEM TO BE SOLVED: To provide a paper container which secures sufficient heat-sealed width and which makes an appearance of a lid after heat sealing good.SOLUTION: A heat-insulating paper container comprises a body member and a bottom plate member. A flange part is provided at an upper edge of an opening of the body member. The paper container is processed so that at least a top surface of the flange part can become flat.SELECTED DRAWING: Figure 1 |
