| abstract |
【Task】 Provided is a method for easily and efficiently producing a building material excellent in design properties, weather resistance and water resistance. [Solution] A coating film containing crosslinked hydrophilic resin particles is applied to the surface of the building material, and then water-based ink substantially free of a binder is ejected onto the coating film surface, and coloring of the building material at a resolution of 150 to 600 DPI and Or do patterning. |