EP 0839648 A1 19980506 - Method for making lithographic printing plates allowing for the use of lower laser writing power
Title (en)
Method for making lithographic printing plates allowing for the use of lower laser writing power
Title (de)
Verfahren zur Herstellung lithographischen Druckplatten unter Verwendung von einem Laser mit einer niedrigeren Schreibleistung
Title (fr)
Procédé de fabrication de plaques d'impression lithographiques permettant l'utilisation d'un laser à puissance d'écriture inférieure
Publication
Application
Priority
- EP 97203130 A 19971008
- EP 96203003 A 19961029
Abstract (en)
According to the present invention there is provided a method for making lithographic printing plates comprising the image-wise exposure of a heat-sensitive imaging element comprising on a hydrophilic lithographic base an image-forming layer comprising hydrophobic thermoplastic polymer particles dispersed in a hydrophilic binder and a compound capable of converting light into heat present in said image-forming layer or a layer adjacent thereto and developing said imaging element by rinsing it with plain water or an aqueous solution. To allow for the use of lower laser writing power the heat-sensitive imaging element is heated to a temperature between 35 DEG C and 60 DEG C while being exposed.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B41C 1/1025 (2013.01); B41M 5/366 (2013.01); B41C 2210/04 (2013.01); B41C 2210/06 (2013.01); B41C 2210/08 (2013.01); B41C 2210/24 (2013.01); B41C 2210/262 (2013.01)
Citation (search report)
- [DY] FR 1561957 A 19690404
- [YD] US 3642475 A 19720215 - VRANCKEN MARCEL NICOLAS, et al
- [YD] EP 0664211 A2 19950726 - PRESSTEK INC [US]
- [Y] US 3833441 A 19740903 - HEIART R
- [YD] US 3476937 A 19691104 - VRANCKEN MARCEL NICOLAS
Designated contracting state (EPC)
BE DE FR GB
DOCDB simple family (publication)
DOCDB simple family (application)
EP 97203130 A 19971008