Laser-driven method and apparatus for lithographic imaging

Details Laser-driven method and apparatus for lithographic imaging Laser-driven method and apparatus for lithographic imaging

1993-11-29

1995-01-31

Burr, Edgar S.

Printing

Planographic

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

101457, 101462, 101453, B41N 114, B41C 110, B41M 524

Patent

active

053850920

ABSTRACT:
Apparatus and methods for imaging lithographic plates using laser devices that emit in the near-infrared region, and plates suitable for imaging with the apparatus and methods. Laser output either ablates one or more plate layers or physically transforms a surface layer, in either case resulting in an imagewise pattern of features on the plate. The image features exhibit an affinity for ink or an ink-abhesive fluid that differs from that of unexposed areas.

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