| 摘要 |
PURPOSE:To obtain image records which are stabilized in the area from high to low, humidity by providing conductive layers containing ion conduction type materials and electroconduction type materials at an opposite side surface of the surface on which color developing layers of electrostatic type clay papers and conductive layers are provided in turn and having surface resistivity below a specific value. CONSTITUTION:On one side of a base paper 1, a color developing layer 3 containing an active clay (color developing agent) 2 and white inorganic fine powder of color developing auxiliary agent (CaCo3 and silica etc.) 8 and a conductive layer 4 which may permeate colorless sulbimated dyes in toners (a layer containing inorganic fine powder 8 and low-molecular PE or silicone resin as a release medium to make easy removal of toners after image forming.) are provided. While, on the opposite surface of the base paper 1, a conductive layer 7 containing ion conduction type materials 5 of inorganic materials of LiCl etc. organic polymer etc. having SO3Na and guaternary base, and electroconduction type materials 6 of electric conductive ZnO or TiO etc. and having surface resistivity below 10<9>OMEGA, is formed. By such a way, colored images in which easy removal of toners is performed after heat-color development, and which have good resolving power in a wide humidity area and good contrast, are obtained. |
