| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a method for forming a paper container suitable for materials provided with a polypropylene resin coating layer. <P>SOLUTION: The method for forming the paper cup 10 joins a paper bottom plate 6, which has a resin coating layer on its inside surface and a cylindrical folded back portion 6a on its outside periphery, to the inside of a bottom end portion 3a of a paper cup body 3 having the resin coating layer formed on its inside surface, in which a joint portion, in the inside peripheral surface of the bottom end portion 3a, for the outside peripheral surface of the folded back portion 6a is heated with bottom plate 6 arranged inside the bottom end portion 3a of the cup body 3, and then, a joint portion, in the inside peripheral surface of the bottom end portion 3a, for the inside peripheral surface of the folded back portion 6a is heated by flames. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
