ELECTROTHERMOGRAPHIC IMAGE RECORDING PROCESS

摘要

A process of electrothermographic reproduction utilizing an electrothermographic material which undergoes a decrease in electrical resistance as the temperature thereof is increased, the rate of decrease changing to a significantly higher rate at a temperature above room temperature. Preferably a span of not more than 20 DEG C. separates the temperature at which the rate change occurs and the temperature at which the resistance of the material reaches a minimum level. Preferred electrothermographic materials are crystalline polymers having a first order transition point and amorphous polymers having a second order transition point, which transition points are above room temperature.