EP 0872339 B1 20020306 - Zirconia alloy cylinders and sleeves for lithographic imaging and printing methods
Title (en)
Zirconia alloy cylinders and sleeves for lithographic imaging and printing methods
Title (de)
Zylinder und Hüllen für lithographische Bildanzeichnungs- und Druckmethoden auf der Basis von Zirconiumlegierungen
Title (fr)
Cylindres et manchons à base d'un alliage de zircone pour l'enregistrement et l'impression lithographique
Publication
Application
Priority
EP 97302662 A 19970418
Abstract (en)
[origin: EP0872339A1] Rotary lithographic printing members are prepared from a non-porous zirconia ceramic that is an alloy of ZrO2 and a second oxide chosen from MgO, CaO, Y2O3, Sc2O3, a rare earth oxide or a combination of any of these. These printing members can be rotary printing cylinders having a zirconia alloy ceramic printing surface. Such cylinders can be composed of zirconia alloy ceramic throughout, or have a ceramic sleeve or shell mounted around a non-ceramic core. In use, the surface of the zirconia alloy ceramic printing member is imagewise exposed to infrared 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. These printing members are directly laser-imageable as well as image erasable. <IMAGE>
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41C 1/1041 (2013.01); B41N 1/08 (2013.01)
Designated contracting state (EPC)
BE CH DE GB LI
DOCDB simple family (publication)
EP 0872339 A1 19981021; EP 0872339 B1 20020306; DE 69710867 D1 20020411; DE 69710867 T2 20021031
DOCDB simple family (application)
EP 97302662 A 19970418; DE 69710867 T 19970418