Acid inkjet imaging of lithographic printing plates

Details Acid inkjet imaging of lithographic printing plates Acid inkjet imaging of lithographic printing plates

2006-11-14

2006-11-14

Hirshfeld, Andrew H. (Department: 2854)

Printing

Planographic

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

C101S454000, C101S463100

Reexamination Certificate

active

07134395

ABSTRACT:
The present invention includes a method of preparing an inkjet ink imaged lithographic printing plate by imagewise applying an acidic inkjet ink onto a substrate coated with an inkjet ink reactive coating composition which is acid-catalyzed, to produce an imaged coated substrate wherein the inkjet ink imaged regions are more insoluble than non-imaged regions. Then the imaged and non-imaged regions of the imaged coated substrate are contacted with a developer or fountain solution to selectively remove the coating from the soluble non-imaged regions. The present invention also includes an inkjet ink imaged lithographic printing plate which is prepared by the method of the invention.

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