Patent ID: 8784971

Claim:
A decorated printed matter comprising: a resin substrate with a light permeability, the resin substrate has a convexo-concave pattern, which consists of a plurality of grooves, on a rear-side surface thereof; and an ink coating covering the convexo-concave pattern; wherein: the convexo-concave pattern is visible from a front-side of the resin substrate, the ink coating is formed by removing a solvent from an ink composition coated on the rear-side surface of the resin substrate, the ink composition includes a coloring pigment as colorant and a binder as an adhesive, the coloring pigment has a non-metallic appearance before being added to the ink composition, and wherein a ratio of the coloring pigment to the binder is within a range of 0.27 to 1.40, such that the distribution of the coloring pigment in the ink coating becomes the distribution by which an incident light incoming into the resin substrate from the front-side surface thereof reflects at an interface between the resin substrate and the ink coating.