| 摘要 |
PROBLEM TO BE SOLVED: To prevent the occurrence of pin holes at a sealing portion different in thickness. SOLUTION: In the production method for containers obtained by bonding under pressure the sealing portion 4 of the containers 1 by a seal bar, a boundary section 4C between a thick sealing portion 4A and a thin sealing portion 4B, and a thin sealing section 4B are bonded under pressure first, then the sealing section 4 on the whole or the thick sealing section 4A is bonded. COPYRIGHT: (C)2003,JPO |
