Invention Grant
- Patent Title: Method of making a lithographic printing plate
- Patent Title (中): 制作平版印刷版的方法
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Application No.: US12094285Application Date: 2006-11-15
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Publication No.: US08088560B2Publication Date: 2012-01-03
- Inventor: Alexander Williamson
- Applicant: Alexander Williamson
- Applicant Address: BE Mortsel
- Assignee: Agfa Graphics NV
- Current Assignee: Agfa Graphics NV
- Current Assignee Address: BE Mortsel
- Agency: Keating & Bennett, LLP
- Priority: EP05111025 20051121
- International Application: PCT/EP2006/068498 WO 20061115
- International Announcement: WO2007/057413 WO 20070524
- Main IPC: G03F7/26
- IPC: G03F7/26 ; G03F7/028

Abstract:
A method of making a lithographic printing plate includes the steps of: (a) providing a lithographic printing plate precursor including a support having a hydrophilic surface or which is provided with a hydrophilic layer, and a coating on the support, the coating including (i) at least one image-recording layer which includes a photocurable composition, and (ii) on top thereof, an oxygen-barrier layer including a water-soluble or water-swellable polymer, b) image-wise exposing the coating, (c) optionally, heating the precursor in a pre-heating unit, (d) treating the image-wise exposed precursor with water or an aqueous solution to remove at least a portion of the oxygen-barrier layer, (e) mounting the treated precursor on a plate cylinder of a lithographic printing press, and (f) developing the precursor by rotating the plate cylinder while feeding dampening liquid and/or ink to the coating, thereby removing non-exposed areas of the image-recording layer.
Public/Granted literature
- US20090047603A1 METHOD OF MAKING A LITHOGRAPHIC PRINTING PLATE Public/Granted day:2009-02-19
Information query
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