Global Patent Index - EP 0993945 A1

EP 0993945 A1 20000419 - Heat-mode driographic printing plate precursor

Title (en)

Heat-mode driographic printing plate precursor

Title (de)

Im Wärmeverfahren arbeitendes Aufzeichnungsmaterial zur Herstellung von Druckplatten, welche kein Anfeuchtwasser benötigen

Title (fr)

Matériau d'enregistrement thermosensible pour la production de plaques lithographiques à sec

Publication

EP 0993945 A1 20000419 (EN)

Application

EP 99202797 A 19990831

Priority

  • EP 99202797 A 19990831
  • EP 98203497 A 19981015

Abstract (en)

A heat-mode exposable imaging material is disclosed which is suitable for making a driographic printing master capable of accepting ink at exposed areas, said material comprising (i) a first layer containing more than 50% by weight of carbon or of an organic light absorbing compound, and (ii) an ink-abhesive second layer underlying said first layer, characterised in that said first layer is removable at non-exposed areas by starting a pressrun without substantially removing said second layer. In a preferred embodiment, the material comprises a support, a silicone coating and a surface coating which consists essentially of carbon, soot or graphite. After heat-mode exposure, the material is ink accepting at exposed areas and the surface coating is removed at non-exposed areas during the start of a pressrun, thereby revealing the silicone coating.

IPC 1-7

B41C 1/10

IPC 8 full level

B41C 1/10 (2006.01)

CPC (source: EP)

B41C 1/1016 (2013.01); B41C 1/1033 (2013.01); B41C 2201/04 (2013.01); B41C 2201/14 (2013.01); B41C 2210/04 (2013.01); B41C 2210/08 (2013.01); B41C 2210/16 (2016.10); B41C 2210/20 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01)

Citation (search report)

Designated contracting state (EPC)

DE FR GB

DOCDB simple family (publication)

EP 0993945 A1 20000419; EP 0993945 B1 20040506

DOCDB simple family (application)

EP 99202797 A 19990831