| 摘要 |
PURPOSE:To obtain a copy capable of having various colors easily with one toner, by forming a toner image contg. a color developing agent made of an oxidative substance on a base sheet, bringing a colorless or light-colored leuco dye soln. into contact with the image to form a color image. CONSTITUTION:As a color developer, bisphenol, epoxy resin, a charge controller, 7 are mixed, kneaded, dried, and pulverized to obtain a toner. An image is copied on plain paper using this developer to form a light-colored toner image. A color developing liquid composed of a mixture of dichloromethane, leuco dye, benzophenone type UV absorber, and monophenol type antioxidant is brought into contact with the toner image. An image of a sharp color selectable from various colors can be easily formed by selecting one from various kinds of colors of leuco dyes. |
