| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a cap or a film enabling a speedy seal opening operation to be carried out, and that is hardly separated from a can body in such a way as the cap or film may not be scattered as rubbish and keeps a sanitary holding of a drinking port of a beverage can that is apt to become insanitary. <P>SOLUTION: Some cutting perforations are formed in either a cap or a film in concurrent with its seal opening through a pull-tab by setting some perforations passing through the upper end of the pull-tab at either the cap or the film of a beverage can. Therefore, either the cap or the film set at a drinking port of the can beverage can be opened quickly. In addition, the perforation patterns to be set are terminated at the locations before the end part of the cap or the film, and holes are opened at both ends of the perforations to cause the cap or the film to be hardly separated from the can main body. <P>COPYRIGHT: (C)2007,JPO&INPIT |
