PURPOSE: To obtain a highly workable and inexpensive steel sheet excellent in appearance by infiltrating a heat-sublimable ink into the primer coating film having colored topcoat thereon provided on the surface of a steel sheet to form a pattern.
CONSTITUTION: This printed prepainted steel sheet has a primer coating film 3 on the surface of a steel sheet 2 and a colored topcoat 4 thereon, and a heat- sublimable ink 6 is infiltrated into the two layers to form a pattern 1. Consequently, the printing ink is not exposed on the coating film surface unlike a conventional patterned steel sheet, the pattern 1 is not dissipated even when rubbed, the entire film thickness is not increased, and the workability such as bendability equivalent to that of the original unprinted painted steel sheet is maintained.
NAMIENO TSUTOMU
KOTANI HIDEO
KANAI HIROSHI
