Invention Grant
US08088560B2 Method of making a lithographic printing plate 有权
制作平版印刷版的方法

  • Patent Title: Method of making a lithographic printing plate
  • Patent Title (中): 制作平版印刷版的方法
  • Application No.: US12094285
    Application Date: 2006-11-15
  • Publication No.: US08088560B2
    Publication 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
Method of making a lithographic printing plate
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.
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