LAMINATED STEEL SHEET

摘要

The invention provides an easy open end having a structure of a polyester resin film having about 5 minutes or shorter half crystallization time and about 0.04 or smaller plane orientation coefficient at thicknesses from about 10 to about 30 µm on at least one side of a steel sheet, wherein the easy open end is provided with a tear-off groove in a cross sectional shape with curvatures from about 0.1 to about 1 mm; and a laminated steel sheet for use in the easy open end. With the structure, the easy open end satisfies both the openeability and the elimination of repair-lacquering even with a thin score residual thickness.