| 摘要 |
PURPOSE: A method of adhering the sides of a paper container is provided to prevent a liquid drink from leaking out of a paper container by covering the overlapped side paper portion of the paper container with a vinyl coating unit. CONSTITUTION: A side portion(2) with a vinyl coating portion(6) is rolled and the skin of a paper portion(5) is removed to form a peeling-off portion(7) on an inner end(3). The inner end(3) is folded to a half and then paper portions without paper skins are adhered each other. A vinyl coating portion(6) covers the inner end(3) to form an overlapped adhering end exposed out of the inner end(3). The overlapped adhering end is put inward and an outer end(4) is rolled to be overlapped on the inner end(3). The outside of the inner end(3) is adhered to the inside of the outer end(4). Thus, a liquid drink is not leaked out of the paper container(1).
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