| 摘要 |
PURPOSE:To increase the printing efficiency with the forming of colors at high density with low energy by providing a thermosensitive recording layer, consisting of a blended inorganic compound containing crystallization water, which indicates a coloration due to heat. CONSTITUTION:An inorganic compound containing crystallization water at a crystallization water release temperature of 100 deg.C or less is blended with an electron-donative dye precursor and an electron-receptive compound, both capable of indicating a coloration due to heat, to prepare an application liquid for dispersion. This dispersant is applied to the surface of a support and dried to form a thermosensitive recording layer and thus a thermosensitive recording material is obtained. With the application of the thermosensitive recording material, especially the crystallization water of the inorganic compound containing a crystallization water is released, and consequently, the printing is performed efficiently to obtain a coloration at high density with low energy in the printing process. The typical examples of the above-mentioned inorganic compounds containing said crystallization water are (NH4)Cr(SO4)2.12H2O, NH4ClMgCl.6H2O, etc. |
