Easy opening can end and method for fabricating the same

摘要

An easy opening can end (1) has a can end panel of steel sheet. This sheet has both sides coated with resin layer containing thermoplastic resin(s) that causes no resin layer damage at the time of forming a score (2). An easy opening can end comprises a can end panel of steel sheet. The sheet has both sides coated with resin layers, each containing one or more types of thermoplastic resin. The resin layers have an elongation after break of >=100%, a tensile strength of >=10 kg/mm 2>, a Young modulus of >=100 kg/mm 2>, and a thickness of 10-100 mu m. A score is formed in front or back of the can end panel. The score is capable of breaking for opening a can end. It has a bottom cross-section of arc shape having a radius of 0.10-1.0 mm. The thinnest section of the score has a thickness (t) of 0.025-0.080 mm. An independent claim is also included for a method of fabricating an easy opening can end by working steel sheet to form a can end panel; and forming a score on the can end panel by press working using a pair of dies.