| 摘要 |
PURPOSE:To improve the properties of a material which becomes discolored reversibly in accordance with temperature change. CONSTITUTION:A reversibly thermal discoloring material contains an electron- donative, color developing organic compound, an electron-receptive chemical compound and a discoloring temperature-adjustable compound, and further R1-PO(OH) or R2-CH(OH)COOH (R1 is 8 to 30C alkyl group; R2 is a 6 to 28C alkyl group). This reversibly thermal discoloring material has improved thermal response, developed color density and discharging properties. |
