Patent ID: 8899149
Filing Date: 2014-12-02
Classification: B41C,B41N

Abstract:
1. A letterpress printing plate made of a material having flexibility, comprising: a first face; a second face being opposite the first face of the letterpress printing plate; a plurality of raised parts for applying printing ink to, the raised parts being provided on the first face, and a plurality of buildup parts formed on the second face at backside positions of the raised parts with respect to the printing plate, the raised parts including a raised part for solid shade and a raised part for halftone shade, the raised part for solid shade and the raised part for halftone shade being of a same height, the buildup parts including: a buildup part for solid shade, formed on the second face at a backside position of the raised part for solid shade; and a buildup part for halftone shade, formed on the second face at a backside position of the raised part for halftone shade and being of a thickness smaller than the buildup part for solid shade, the thickness being set in accordance with a halftone percentage of the raised part for halftone shade, and the buildup parts being formed of ink.