Patent ID: 7709074
Filing Date: 2010-05-04
Classification: B41M,Y10T

Abstract:
1. An optical information recording medium, comprising an image forming layer on one or more layers stacked on a surface of a light transmitting substrate, wherein optically readable signals are recordable by laser beams incident on the other surface of the light transmitting substrate, and wherein the image forming layer comprises an ink absorbing porous layer for absorbing ink and a hydrophilic anchor layer for fixing an image with the ink, wherein the ink absorbing porous layer is formed on and in contact with the hydrophilic anchor layer, the ink absorbing porous layer and the hydrophilic anchor layer are surrounded, as view from above, by a hydrophobic portion formed radially around an outer circumference of the medium, wherein the hydrophobic portion serves as a dam for blocking diffusion of a coating solution for forming the ink absorbing porous layer.