Direct offset master by resistive thermal printing

Details Direct offset master by resistive thermal printing Direct offset master by resistive thermal printing

1987-10-30

1989-06-06

Pearson, Charles

Printing

Planographic

Lithographic plate making, and processes of making or using...

4002411, 400696, B41N 300

Patent

active

048361062

ABSTRACT:
This invention describes a direct master for offset printing. The master comprises a thin metal layer, a thermoplastic layer disposed on the metal layer, and a conductive oxide layer evaporated on the metal layer. When this master is subjected to electrical pulses from the styli of a printer, some of the thermoplastic layer diffuses through the oxide layer changing selected regions of the oxide layer to oleophilic regions.

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IBM; IBM Tech Disc; vol 29, No. 9; Feb. 1987, pp. 3923, 3924.

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