Plasma-jet imaging apparatus and method

Details Plasma-jet imaging apparatus and method Plasma-jet imaging apparatus and method

1992-04-30

1993-12-28

Eickholt, Eugene H.

Printing

Planographic

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

346159, B41C 105, B41C 110

Patent

active

052729796

ABSTRACT:
A method of and apparatus for imaging a lithographic plate having a printing surface by exposing the printing surface to plasma jet discharges between the plate and a plasma jet nozzle spaced close to the printing surface of the plate. These plasma jet discharges are sufficient to ablate or otherwise transform one or more layers of the printing surface, thereby changing the affinity of the printing surface for ink and/or water at the points thereof exposed to the discharges so as to produce image spots on the plate.

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