| 摘要 |
PURPOSE:To enhance a desensitizing effect and bleeding resistance, by incorporating a substance obtained by the reaction of a diamine such as an aromatic diamine of a specified general formula with a compound having at least one oxysilane group. CONSTITUTION:A developer composition forming no color is prepared by incorporating a substance obtained by the reaction of one or more in mixture of aromatic diamines, cyclohexyl diamines and perhydronaphthalene diamines of formulas I , II, III, IV, V and VI, wherein each of R1 and R2 is a hydrogen atom or a 1-2C alkyl group, with a compound having at least one oxysilane group. In this case, in addition to a binder such as a ketone resin and a polyamide resin, an additive for enhancing printing adaptability or brightness, e.g., titanium oxide or zinc oxide, is added to the composition. |
