| 摘要 |
PURPOSE:To obtain a photosensitive recording material capable of recording an image through irradiation of visible light, erasing the image in the dark, and being repeatedly used by applying a colored composition containing a thiazine dye, an ethanolamine organic acid salt, and a binder. CONSTITUTION:The photosensitive recording sheet is formed by applying the thiazine type dye capable of being excited with visible lights of 500-700nm to lose color in the pressure of an electron donor, and being restored to a colored state by being left in the dark, the ethanolamine organic acid salt, and the binder. The use of said salt as the electron donor permits the coating film to be made fast and tough, to lose gas absorptivity of gaseous carbon dioxide and liquid releasing property, to be stabilized against physicochemical changes, and to be endowed with practicability as the photosensitive coat. |
