Patent ID: 11970311
Assignee: NIPPON CLOSURES CO., LTD.
Field: Machine tools (Mechanical engineering)
Classification: CPC B | IPC B

Claim 6:
7. A method for manufacturing the synthetic-resin container lid according to claim 1, comprising:
an incomplete container lid molding step of compression molding or injection molding an incomplete container lid of a shape having none of the breakable line, the pair of the second scores, the pair of the third scores, the pair of the fourth scores, the fifth score, and the pair of the sixth scores formed therein; and
a post-processing step of applying cutting blades to the incomplete container lid, after the incomplete container lid molding step, to form the breakable line, the pair of the second scores, the pair of the third scores, the pair of the fourth scores, the fifth score, and the pair of the sixth scores.