| 摘要 |
PURPOSE:To obtain a heat developable color photosensitive material having good developability and good preservability by incorporating at least 30wt.% hot solvent basing on the amt. of a binder into a photosensitive element, and incorporating a heterocyclic compd. having neither a mercapto group, a hydrophilic group, nor a ballast group into an image receiving element. CONSTITUTION:A photosensitive material is constituted on a base of a photosensitive element contg. photosensitive silver halide, binder, reducing agent, and a dye providing material and an image receiving element which is formed in layers thereon in the stage of forming a dye picture image. At least 30wt.% (basing on the amt. of binder) hot solvent and a heterocyclic compd. as a development accelerator, are added to the photosensitive element. In formulas, R1 is H atom, alkyl group, aryl group, or a group expressed by formula II, wherein n is 1 or 2; each R2 and R3 is H atom, alkyl group, aryl group, nitro group; R2 may combine with R3 to form a 5- or 6-membered ring. By this constitution, a heat developable color photosensitive material generating no fog, having high development proceeding speed and high preservability is obtd. |
