Electric recording process

An electric recording process comprising locating, between an anode comprising a solid electrolyte of a compound of a metal of Group IB of the Periodic Table, said electrolyte having an ionic conductivity of at least 1.times. 10.sup. -4 .OMEGA..sup.-.sup.1 cm.sup.-.sup.1 at a temperature ranging from room temperature to 200.degree. C., and a cathode, a recording layer containing a color forming agent capable of reacting with ions of said metal of Group IB of the Periodic Table to form a visible image, in such a manner that the recording layer is contacted with the anode, to thereby form an electricity conducting passage between said anode and said cathode, and applying an electric voltage between said anode and said cathode to thereby inject ions of said metal of Group IB of the Periodic Table into said recording layer and form a visible image by reaction of said ions with the color forming agent in said recording layer.

An electric recording process comprising locating, between a composite anode including a solid electrolyte of a compound of a metal of Group IB of the Periodic Table having an ionic conductivity of at least 1.times. 10.sup.-.sup.4 .OMEGA..sup.-.sup.1 cm.sup.-1 and a metal substrate composed of the same metal as the metal of said solid electrolyte and a cathode, a recording layer containing a color forming agent capable of reacting with ions of said metal of Group IB of the Periodic Table to form a visible image, in such a manner that said recording layer is contacted with said solid electrolyte, to thereby form an electricity conducting passage between said anode and said cathode;

• applying an electric voltage between said anode and said cathode to thereby inject ions of said metal of Group IB of the Periodic Table from the solid electrolyte into said recording layer and form a visible image by reaction of said ions with the color forming agent;
• and simultaneously supplying ions of the metal of Group IB into the solid electrolyte to said metal substrate.