Patent ID: 9551155
Date: 2017-01-24
CPC Classifications: B05D,B44C,B44F,E04F,Y10T

Claim:
1. A building board having on an upper surface thereof a plurality of wood board patterns containing a horizontal, linearly arranged recessed groove for separating at least two of the plurality of the wood board patterns and a plurality of obliquely formed grooved recessed portions for forming the plurality of wood board patterns, the building board comprising: an inorganic base material; an undercoat coating; an overcoat coating; and an inkjet coating, wherein the inorganic base material, the undercoat coating, the overcoat coating, and the inkjet coating are successively formed on the surface of the inorganic base material, the inorganic base material has on an upper surface thereof a plurality of wood board patterns containing a horizontal, linearly arranged recessed groove for separating at least two of the plurality of the wood board patterns and a plurality of obliquely formed grooved recessed portions for forming the plurality of wood board patterns, the undercoat paint has a pigment weight concentration (PWC) of 40 to 60%, the overcoat coating has a lower pigment weight concentration (PWC) than that of the undercoat paint, the undercoat coating and the overcoat coating have different hues, the wood board patterns of the building board have different depths of color due to variations in the position and the thickness of the overcoat coating, and the wood board patterns of the building board have different hues due to partial arrangement of the inkjet coating having a different hue from the overcoat coating.