Method of making a heat-sensitive lithographic printing plate

Details Method of making a heat-sensitive lithographic printing plate Method of making a heat-sensitive lithographic printing plate

2007-11-20

2007-11-20

Schilling, Richard L. (Department: 1752)

Radiation imagery chemistry: process, composition, or product th

Imaging affecting physical property of radiation sensitive...

Making printing plates

C430S309000, C430S325000, C430S330000, C430S964000, C101S463100, C101S467000

Reexamination Certificate

active

10964024

ABSTRACT:
A method of making a lithographic printing plate is disclosed which comprises the steps of(1) providing a lithographic printing plate precursor comprising (i) a support having a hydrophilic surface or which is provided with a hydrophilic layer and (ii) a coating provided thereon which comprises hydrophobic thermoplastic polymer particles;(2) exposing the precursor to IR-light or heat, thereby inducing coalescence of the thermoplastic polymer particles at exposed areas of the coating;(3) applying a hydrophilic protective layer on the coating; and then,(4) while the precursor is mounted on a print cylinder of a printing press, developing the precursor by supplying an aqueous dampening liquid and/or ink to said precursor while rotating said print cylinder whereby the coating and the hydrophilic protective layer are removed from the support on the non-exposed areas.According to the above method, the hydrophilic protective layer can be applied by coating a solution by means a spray nozzle or a jet nozzle and wherein the applied hydrophilic protective layer improves clean-out in an on-press development.

REFERENCES:
patent: 6387595 (2002-05-01), Teng
patent: 2003/0170570 (2003-09-01), Vander Aa et al.
patent: 2003/0180658 (2003-09-01), Goodin et al.
patent: 2003/0224259 (2003-12-01), Verschueren et al.
patent: 0 770 494 (1997-05-01), None
patent: 0 816 070 (1998-01-01), None
patent: 1 065 049 (2001-01-01), None
patent: 1 092 555 (2001-04-01), None
patent: 1 342 568 (2003-09-01), None
Search Report for EP 03 10 3828 (Feb. 16, 2004).

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