Decorative paper for multilayer composite board, preparation method and decorative board

The invention relates to the technical field of decorative stickers, and discloses decorative paper for a multilayer composite board, a preparation method and a decorative board, the surface of the decorative paper is provided with printed wood grain patterns, the density of the decorative paper is 0.6-0.8 g/cm < 3 >, the longitudinal elongation is 10-15%, the tensile strength is 35-45 N/15 mm, the average elongation after wetting is 1.25-1.50%, and the average shrinkage after drying is 1.80-2.10%. And the thickness is 0.2 to 2.0 mm. The wood texture obtained by printing and embossing is more vivid; in the use process, the surface flatness of the decorative plate can be maintained for a long time, and the decorative plate has relatively good dimensional stability; the bonding strength between the decorative paper and the multi-layer composite board is relatively high, so that even if the decorative paper is used as a ground paving material in a geothermal environment, the decorative paper does not crack. 本发明涉