| 摘要 |
PURPOSE:To prevent the alteration after fixing, by providing a conductive layer showing the compatibility with a meltable layer under heating and a color forming layer containing a solid electrolyte and a redox dye. CONSTITUTION:A meltable layer 6 melted under heating, a conductive layer 2 showing the compatibility with the meltable layer and a color forming layer 1 containing a solid electrolyte and a redox dye are provided to a support. When pulse voltage is applied between a recording needle 4 and a return electrode 5, a current flows in the route of color forming layer 1 conductive layer 2 return electrode 5 and the dye in the color forming layer 1 develops a color by electrolytic oxidation or reduction. After the completion of recording, the whole of recording paper is heated to melt and mix the conductive layer 2 and the meltable layer 6 having compatibility to each other. The meltable layer 6 is formed so as to be sufficiently thick as compared with the conductive layer 2 and the conductive substance in the conductive layer 2 is diluted by mixing and the current sufficient for inducing the electrolysis of the color forming layer 1 does not flow any longer. |
