EP 0864419 B1 20020807 - Method for making positive working lithographic printing plates
Title (en)
Method for making positive working lithographic printing plates
Title (de)
Verfahren zur Herstellung von positiv arbeitenden lithographischen Druckplatten
Title (fr)
Procédé de fabrication de plaques d'impression lithographiques positives
Publication
Application
Priority
US 4040797 P 19970311
Abstract (en)
[origin: EP0864419A1] According to the present invention there is provided a method for making positive working lithographic printing plates comprising the image-wise exposure of a heat-sensitive imaging element with an infrared laser and developing said imaging element in a simple wet clean-out process. The imaging element is exposed on an internal or flatbed scanner with a laser having a pixel dwell time of less than 0.2 mu s to obtain a positive working printing plate having a high sensitivity.
IPC 1-7
IPC 8 full level
G03F 7/004 (2006.01); B41C 1/055 (2006.01); B41C 1/10 (2006.01); G03F 7/00 (2006.01); G03F 7/039 (2006.01); G03F 7/20 (2006.01)
CPC (source: EP)
B41C 1/1008 (2013.01); B41C 1/1016 (2013.01); B41C 2210/02 (2013.01); B41C 2210/06 (2013.01); B41C 2210/22 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
EP 0864419 A1 19980916; EP 0864419 B1 20020807; DE 69806986 D1 20020912; DE 69806986 T2 20030508; JP H10254143 A 19980925
DOCDB simple family (application)
EP 98200433 A 19980211; DE 69806986 T 19980211; JP 7307098 A 19980309