LAMINATE STEEL SHEET FOR TWO-PIECE CAN BODY, TWO-PIECE CAN BODY MADE OF LAMINATE STEEL SHEET, AND METHOD FOR PRODUCTION OF THE TWO-PIECE CAN BODY

摘要

Provided is a laminated steel sheet for a can body of a two-piece can, containing a copolyethylene terephthalate resin layer containing at least one member selected from the group consisting of isophthalic acid and cyclohexane dimethanol as a copolymer component in a proportion of 5 to 20 mol% and having a crystallization temperature of 120°C to 140°C on at least one side of a steel sheet; and satisfying the following relationships: r 1 ‰¤ r, 0.1 ‰¤ r 1 /R ‰¤ 0.25, and 1.5 ‰¤ h/(R - r) ‰¤ 4, wherein r 1 represents the minimum radius of the can body, r represents the maximum radius of the can body, h represents the height of the can body, and R represents the radius of the laminated steel sheet having a circular shape before shaping whose weight is the same as that of the can body. The laminated steel sheet is suitable for a can body of a two-piece can having a high strain level, and can provide a two-piece can body which is free from delamination and breakage of the resin layer.