A method for producing a decorative substrate (20)comprises the steps of first, etching a surface of a non-porous and rigid substrate (30) to produce a roughened surface (33) of the substrate (30); subsequently, depositing a base coating (41) onto the roughened surface (33) of the substrate (30); drying said substrate until the base coating (41) is completely adhered on the substrate (30); jetting liquid material onto the base coating (41) of the substrate to form an image printed surface (51) and applying a protective coating (61) onto the image printed surface (51) of the substrate (30) and drying it completely at ambient temperature. Such decorative substrate (20) provided with printed images on its surface are resistant to water, microorganisms growth and common non-acidic household detergents.