| 摘要 |
PROBLEM TO BE SOLVED: To provide a method of printing a building board by which multicolor printing on a design surface of the building board is inexpensively performed. SOLUTION: In printing a design pattern, a solid color rubber made roll 11A having lower surface hardness is pressed with a prescribed pressing force on the design surface 21 of the building board 20 to print up to the depth position of the projecting and recessed parts 22a and 22b of the design surface 21. After that, the shallow position of the projecting and recessed parts 22a and 22b of the design surface 21 is printed using a solid color rubber made roll 11B having higher surface hardness. Alternatively, the more shallow position is printed using a solid color rubber made roll 11C having more higher surface hardness or a plate roll. As a result, the multicolor printing is inexpensively performed without using a metal made plate roll. COPYRIGHT: (C)2004,JPO&NCIPI
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