Steel strip for three-piece can body, production process thereof and resistance seam welded three-piece can body

摘要

A coiled steel strip for the manufacture of a three-piece can body having, on one surface corresponding to the outer surface of the can body, a multiple-layer organic film including a thermoplastic resin layer and a layer of inks arranged on said thermoplastic resin layer to represent a label of a content to be filled in the can, and on the other surface corresponding to the inner surface of the can body, a film or films of a thermosetting coating and/or a thermoplastic resin, said multiple layer organic film extending continuously along the length direction of said strip in a plurality of stripes, each having a width slightly smaller than the circumferential length of the can body and being arranged such that said strip has spaces of a width of 1 to 10 mm at both sides of each such stripe, free from coverage by said organic film, and said film or films of a thermosetting coating and/or a thermoplastic resin extending continuously along the length direction of said strip in a plurality of stripes, each having a width slightly smaller than the circumferential length of the can body and being arranged in alignment with said stripe of said multiple layer organic film back to back on the respective surfaces of said strip, as well as the production of the steel strip sheet, and a resistance seam welded three-piece can body.