Electrosensitive recording material and process

Details Electrosensitive recording material and process Electrosensitive recording material and process

1979-08-21

1981-04-21

Tufariello, T. M.

Chemistry: electrical and wave energy

Processes and products

B41M 520

Patent

active

042631050

ABSTRACT:
An electrosensitive recording material has in a single electrosensitive layer a semiconductor oxide which may be doped or otherwise treated to have crystal surface defects, an antimony or bismuth salt and a complexing agent for modifying the electronic configuration of the salt, all components being uniformally dispersed in a binder. The sensitive layer is carried on an electrically conductive backing which is capable of generating positive charges. Permanent recordings of electrically relayed information signals are formed on the electrosensitive coating by injecting electrons from a writing electrode or stylus into the electrosensitive layer. The electrons create color centers at electron trapping centers formed when the bismuth and antimony salt complex combines with the surface defects of the semiconductor oxide.
Electrosensitive coating compositions, recording materials, recording method and apparatus are described.

REFERENCES:
patent: 3138547 (1964-06-01), Clark
patent: 3355290 (1967-11-01), Robillard
patent: 3871972 (1975-03-01), Sekine
patent: 3875023 (1975-04-01), Sekine

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