Alternating current energized printing system utilizing a dielec

Details Alternating current energized printing system utilizing a dielec Alternating current energized printing system utilizing a dielec

1974-10-09

1978-07-11

Coughenour, Clyde I.

Printing

Intaglio

Rotary

101170, 101219, B41F 906, G03G 1314, G03G 1514

Patent

active

040994627

ABSTRACT:
A printing system where the alternating current energized semiconductive layer of the impression roller has a covering of dielectric material with a controlled thickness, and with a dielectric constant many times greater than that of the web, such that a major portion of the applied electric potential is transmitted to the web by means of a reactive current through the covering.

REFERENCES:
patent: 2520504 (1950-08-01), Hooper
patent: 3316879 (1967-05-01), Washburn
patent: 3477369 (1969-11-01), Adamson et al.
patent: 3489082 (1970-01-01), Morris
patent: 3508491 (1970-04-01), Williamson et al.

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