Patent ID: 7927707

Claim:
A plate material, comprising: a plate substrate being free of protrusions and depressions of submicron order oriented in a thickness direction thereof with a rolling oil being used and remaining on the plate substrate; a substrate coating formed on a surface of the plate substrate with a corrosion resistant hydrophobic organic paint material, the corrosion resistant hydrophobic organic paint material including a coating film component, the coating film component being a two-component resin, and an alcohol-based solvent, a content of the alcohol-based solvent being 1 to 10 wt % when the corrosion resistant hydrophobic organic paint material is applied; and a hydrophilic coating made of a hydrophilic paint material being provided on a surface of the substrate coating, the corrosion resistant hydrophobic organic paint material having affinity with both the plate substrate with the rolling oil remaining on the surface and the hydrophilic coating.