| 摘要 |
PURPOSE:To obtain the titled material having excellent raw stock preservability, rapid responsibility, high color developing property and less tendency for reducing density of a recorded image due to a long period preservation after recording by mounting a microcapsule contg. a photo acid generating agent and an electron donative colorless dyestuff as a core substance, on a substrate body. CONSTITUTION:The titled material is composed of the photosensitive recording material which mounts a microcapsule contg. the photo acid generating agent and the electron donative colorless dyestuff as the core substance on the substrate body. The used photo acid producing agent, such as a diazo compd., comprises diazonium salt shown by the formula Ar2<+>X<-> (wherein Ar is an aromatic moiety, N2<+> is diazonium group, X<-> is an acid anion) and has >=1, preferably >=3 solubility in dioctylphthalate or tricresylphosphate. The electron donative colorless dyestuff comprises various kinds of compds. such as triphenylmethane phthalide compd., fluorane compd. and fluorene compd., etc. Thus, the preservable property of the titled material at the time of the raw stock or after the lapse of time, is remarkably improved. |
