Method of imaging of lithographic printing plates using laser ab

Details Method of imaging of lithographic printing plates using laser ab Method of imaging of lithographic printing plates using laser ab

1996-09-24

1997-11-25

Hamilton, Cynthia

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

430944, 101457, 1014501, 1014631, G03F 720, G03F 709, B41M 106

Patent

active

056911149

ABSTRACT:
A lithographic printing plate is comprised of an anodized aluminum support having thereon an oleophilic image-forming layer comprising an infrared-absorbing agent dispersed in a film-forming cyanoacrylate polymer binder. The plate is imagewise exposed to a focused high-intensity infrared laser beam which removes the oleophilic image-forming layer by thermal ablation to thereby reveal the underlying hydrophilic support surface. The cyanoacrylate polymers provide superior performance due to their combination of low decomposition temperature, good ink receptivity, good adhesion to the support and good wear characteristics.

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