| 摘要 |
PROBLEM TO BE SOLVED: To attach this seal cap to a mouth cylinder of a can container wherein airtightness is so sufficient that a seal material may not peel and mix with the contents. SOLUTION: The seal cap has a circular plate 21, a cylindrical rising part 22 along the periphery of the circular plate 21, a semi-arc folded-back part 23 along the periphery of the rising part 22 and a downward extending body 24 at the tip of the fold-back part 23. In this case, a double structured film 30 comprising polyethylene 31 and nylon 32 is laminated on the rear of a metallic cap body 20 so that the polyethylene 31 is positioned on the side of the cap body 20. |
