| 摘要 |
PURPOSE:To provide a recording medium capable of being easily produed from inexpensive materials and capable of developing acolor in sufficient density with low energy, wherein a layer of a metal capable of librating electrons through oxidation such as Al, a color former capable of forming a color through recution and a metallic compound are combined with each other. CONSTITUTION:A base 1 (e.g., a paper, a plastic film, a metallic foil) is provided at least on a surface thereof with a conductive layer 2 comprising a metal (e.g., Mg, Al) capable of librating electrons when being oxidized by impressing a voltage thereon. A conductive binder layer 3 incorporating a color material capable of forming a color or being discolored when being reduced by impressing a voltage thereon [e.g., a tetrasolium salt of the formula (wherein R is phenyl, alkyl; R' is H, alkyl, phenyl, COOC2H5 or the like)] and a metallic compound (e.g., an oxide of Zn, Ti or the like, a sulfide of Cd or the like) is provided on the surface of the base 3 to obtain the recording medium. EFFECT:Recording is accomplished by impressing a low voltage of not higher than 10V. |
