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1. EP2329951 - A lithographic printing plate precursor

Office European Patent Office
Application Number 09177986
Application Date 04.12.2009
Publication Number 2329951
Publication Date 08.06.2011
Publication Kind B1
IPC
B41C 1/10
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
CPC
B41C 1/1008
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
1008by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
B41C 1/1016
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
1Forme preparation
10for lithographic printing; Master sheets for transferring a lithographic image to the forme
1008by removal or destruction of lithographic material on the lithographic support, e.g. by laser or spark ablation; by the use of materials rendered soluble or insoluble by heat exposure, e.g. by heat produced from a light to heat transforming system; by on-the-press exposure or on-the-press development, e.g. by the fountain of photolithographic materials
1016characterised by structural details, e.g. protective layers, backcoat layers or several imaging layers
B41C 2201/02
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
2201Location, type or constituents of the non-imaging layers in lithographic printing formes
02Cover layers; Protective layers
B41C 2201/14
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
2201Location, type or constituents of the non-imaging layers in lithographic printing formes
14characterised by macromolecular organic compounds, e.g. binder, adhesives
B41C 2210/02
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
2210Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
02Positive working, i.e. the exposed (imaged) areas are removed
B41C 2210/06
BPERFORMING OPERATIONS; TRANSPORTING
41PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
CPROCESSES FOR THE MANUFACTURE OR REPRODUCTION OF PRINTING SURFACES
2210Preparation or type or constituents of the imaging layers, in relation to lithographic printing forme preparation
06Developable by an alkaline solution
Applicants AGFA GRAPHICS NV
Inventors LOCCUFIER JOHAN
JANSSENS HEIDI
LINGIER STEFAAN
Designated States
Priority Data 09177986 04.12.2009 EP
Title
(DE) Lithographiedruckplattenvorläufer
(EN) A lithographic printing plate precursor
(FR) Précurseur de plaque d'impression lithographique
Abstract
(EN)
A positive-working lithographic printing plate precursor is disclosed which comprises on a support having a hydrophilic surface or which is provided with a hydrophilic layer a heat and/or light-sensitive coating including an infrared absorbing agent and a first layer comprising a binder including a monomeric unit including a sulfonamide group; characterized in that the binder further comprises a monomeric unit including a phosphonic acid group or a salt thereof, and that the monomeric unit comprising the phosphonic acid group is present in an amount comprised between 2 mol% and 15 mol%.