A METHOD OF MANUFACTURING OF LAMINETED STEEL SHEET WITH EXCELLENT IMAGE CLARITY

摘要

The present invention relates to a method for manufacturing a laminated steel sheet with excellent image clarity. According to an embodiment of the present invention, the method includes the steps of: preparing a metal sheet; forming a chemically treated layer by drying the metal sheet having both sides on which a chemical treatment solution is applied; forming a coating layer by firstly baking the metal sheet after applying an undercoating film forming base paint on one side of the metal sheet having a chemically treated layer; forming an upper coating film layer by secondly baking the metal sheet at 170-270 deg. C, the temperature of the steel sheet in an outlet, after applying an upper coating film forming base paint on the undercoating film layer; and obtaining the laminated steel sheet by firstly compressing a film, preheated at 80-170 deg. C, on the upper coating film layer and then secondly compressing the film, which is firstly compressed.