Patent ID: 7405179
Filing Date: 2008-07-29
Classification: B41M

Abstract:
1. A thermosensitive recording medium for recording an image thereon by a thermal recording apparatus, comprising: a substrate; a porous ink receptive layer formed on a surface of said substrate, said porous ink receptive layer containing a pigment as its main component and a binder resin, said pigment in said ink receptive layer is a porous pigment formed by a flocculated mass of primary particles thereof; and a thermosensitive coloring layer formed integrally with said ink receptive layer by impregnating said ink receptive layer with a water-dispersion thermosensitive ink that has been prepared by dispersing in water dispersion components including at least an electron-accepting compound and an electron-donating compound, the thermosensitive coloring layer developing a color, wherein an average particle size of said pigment is greater than an average particle size of particles within said dispersion components in said water-dispersion thermosensitive ink.