| 摘要 |
PURPOSE:To enable formation of a sharp image by adding a nucleus increasing agent to a wax toner binder thereby increasing the light transmittance of a toner and to permit satisfactory mixing of toners of different colors. CONSTITUTION:A toner used for a pressure fixing method is constituted of wax, coloring agent and nucleus increasing agent. Paper or a transparent film is used for a transfer agent and copying is accomplished repeatedly many times. A condensate of, for example, sorbitol and substd. benzaldehyde or the like is used for such nucleus increasing agent. The nucleus increasing agent makes crystal growth of the wax smaller than the wave of visible light, increases the light transmittance of the toner and permits satisfactory mixing of toners of different colors thus enabling formation of a sharp color image. |
