| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for manufacturing a can adhered lid made of a metallic foil wherein high airtightness can be retained, and a wavy recess for degassing can be formed at a lower end opening of the can simultaneously with heat-sealing. SOLUTION: When a lid made of a metallic foil is to be adhered on a metallic can container having a tapered part tilted inward toward an upper face opening 3 on an upper part of the can having a body joint, a circular groove which can be fitted into an inner curl 5 is formed in advance, and the lid 7 made of a metallic foil with the circular groove is fitted to the inner curl 5 of the can body. Then wrinkles are removed by pressure-bonding with a heat die 20. The circular groove is made slightly larger than an inner and outer diameter of the inner curl 5, thereby filling a gap at the body joint. |
