Laser-imageable lithographic printing members

Details Laser-imageable lithographic printing members Laser-imageable lithographic printing members

1997-02-11

1999-12-07

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

101460, 101467, B41N 114

Patent

active

059964960

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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