| 摘要 |
PURPOSE:To obtain the recording material excellent in light-resisting property and the speed of color development by using a polyvalent metal salt of aromatic carboxylic acid as a developer and further using the specific alkali metal salt of aliphatic monocarboxylic acid together. CONSTITUTION:In the recording material wherein a developed color image is obtained through the reaction of an electron-donating color former with an electron- accepting developer, the polyvalent metal salt of aromatic carboxylic acid, preferably, a material of C19 or more. e.g. the zinc salt of 3, 5-di(alpha-methylbenzyl) salicylic acid or the like, is used as the developer and, moreover, the alkali metal salt of aliphatic monocarboxylic acid of C8-30, preferably, sodium salt or kalium salt of the material of C10-20, is used together, thus the aimed recording material being obtained. In addition, it is preferable to use the inorganic pigment such as barium carbonate, powder of silica or the like jointly for this recording material. |
