| 主权项 |
1. A process for the production of decorated wooden boards comprising:
a) scattering of glued wood fibers or wood chips to give a cake of wood material, b) pressing of the cake of wood material at elevated temperature to give a substrate board which is provided in press-finished condition and, at least on one of the upper sides thereof, has a press skin that arose during production thereof, c) application of a base coat made of a melamine-based liquid resin to the untreated press skin of the upper side of the substrate board, whereupon the resin penetrates at least to some extent into an upper peripheral layer of the substrate board, and thus at least to some extent penetrates into the press skin, d) drying of the base coat, e) application of a base color to the base coat, f) drying of the base color, g) in order to produce a decorative effect, application of at least one water-based printing ink enriched with coloring pigments to the dried base color, h) drying of the decorative effect, i) application, to the decorative layer, of a sealing system made of at least one melamine-based resin, j) drying of the sealing system, and k) pressing of the substrate board with the base coat that has been applied on an upper side, the base color, the decorative effect, and the sealing system, and also with a counterbalancing material that has been applied to an underside, with exposure to pressure and heat, to form a laminate, wherein the base color used comprises a water-based ink which is applied by a digital printer to the dried base coat, and the sealing resin is applied in liquid form. |
