Zirconia ceramic lithographic printing plate

Details Zirconia ceramic lithographic printing plate Zirconia ceramic lithographic printing plate

1997-07-23

1999-02-16

Funk, Stephen R.

Printing

Planographic

Lithographic printing plates

101456, 101478, 430302, B41N 114

Patent

active

058709568

ABSTRACT:
Lithographic printing is carried out by a novel process utilizing a zirconia ceramic as a printing plate. In this process, the surface of the zirconia ceramic printing plate is imagewise exposed to radiation which transforms it from a hydrophilic to an oleophilic state or from an oleophilic to a hydrophilic state, thereby creating a lithographic printing surface which is hydrophilic in non-image areas and is oleophilic and thus capable of accepting printing ink in image areas. The zirconia ceramic printing plate utilized in this process is capable of extremely long printing runs, is especially well adapted for direct digital laser imaging using images that are electronically captured and digitally stored, and can be reused by erasing the image from the ceramic surface by thermally-activated oxidation or laser-assisted oxidation.

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