| 摘要 |
A method of manufacturing a can body by bonding a printed film sheet having an overcoating layer on its surface to the trunk of the can body. A continuous film (21) of a synthetic resin having an overcoating layer (22) formed on its one face and a printed layer (23) and an adhesive layer (24) formed on its other face is cut into a plurality of film sheets of a size for each can to have a slightly larger width for the bottomed cylindrical metal can body than the circumferential length of the can trunk, and is then fed. The printed film sheet, as fed, is thermally adhered and bonded to the surface of the trunk surface of the can body, as heated, through an adhesive layer such that the cut ends overlap each other. Then, the bottomed cylindrical film-bonded can body is deformed. A portion (28) having no overcoating layer is formed in the estimated overlapping portion of the continuous film with a larger width than the sum of one half of the dispersion width (D2) of an estimated actual cutting position and the width (D1) of the overlapping portion. The cutting position (X) of the continuous film is set at a position which is spaced by the distance of the sum of one half of the dispersion width of the estimated actual cutting position and the width of the overlapping portion, from the end of the overcoating layer at the lower layer side of the overlapping portion. |
