JPS5749945A - Photosensitive and heat sensitive recording material - Google Patents

Abstract

PURPOSE:To improve fixing sensitivity and obtain sharp images by the constitution consisting of the three layers, a basic material generating layer contg. anmine Co(III) complex salt, a chelating agent coordinated with Co, and a specific anthraquinone compound, an intermediate layer and a layer which colors when photooxidized. CONSTITUTION:The three layers, a basic material generating layer contg. the anthraquinone compound expressed by the formula (R1, R2 are alkyl, H, X1-X4, Y1, Y2 are H, halogen or alkyl) as a photoreducing material, an anmine Co(III) complex salt or amine Co(III) complex salt and a chelating agent coordinates with Co and forming complex of small absorbancy in a visible light part, an intermediate layer consisting of a water soluble or emulsion type resin, and a coloring layer contg. an amino triaryl methane coloring agent which colors when oxidized, an acid assisting coloring, and hexaaryl biimidazole oxidizing said coloring agent through activation by ultraviolet ray are successively formed on a substrate, whereby the photosensitive and heat sensitive recording material is made. Thereby, the photoreceptor of less thermophotographic fogs by which both positive and negative images are obtained when selected the exposure sequence of ultraviolet rays and white light, is obtained.