EP 1262316 A1 20021204 - Method and apparatus for making a printing plate
Title (en)
Method and apparatus for making a printing plate
Title (de)
Verfahren und Vorrichtund zur Herstellung einer Druckform
Title (fr)
Méthode et dispositif de fabrication d'une plaque d'impression
Publication
Application
Priority
EP 01112706 A 20010525
Abstract (en)
Recesses (V) forming part of a relief pattern are burnt away in a type form preform (1) by irradiation of preform material along paths (6). Flat areas left between the recesses are also irradiated so that deeper flat areas (P2) are created at various depths. An Independent claim is made for the process equipment which has a laser for irradiating a surface (2) of the preform and a laser control unit. Data files deliver commands to the control unit for switching the beam on and off as the laser moves along a path and enables the deeper flat areas to be created.
Abstract (de)
Bei einer Druckform wird in die Oberfläche eines Druckformrohlings (1) ein Relief dadurch eingebracht, daß Material des Druckformrohlings (1) entlang von Spuren bereichsweise durch Strahlung abgetragen wird, um dadurch Ausnehmungen (V) zu bilden, zwischen denen Plateaus zu liegen kommen. Erfindungsgemäß wird auch die zwischen den Ausnehmungen (V) liegende Oberfläche des Druckformrohlings (1) durch Strahlung abgetragen, um dadurch tiefer liegende Plateaus (P2) zu erhalten. <IMAGE>
IPC 1-7
IPC 8 full level
B41B 19/00 (2006.01); B41C 1/05 (2006.01); G03F 7/00 (2006.01)
CPC (source: EP US)
B41B 19/00 (2013.01 - EP US); B41C 1/05 (2013.01 - EP US)
Citation (search report)
- [DA] WO 9719783 A1 19970605 - BAASEL SCHEEL LASERGRAPHICS GM [DE], et al
- [A] US 5427026 A 19950627 - KUWAHARA SOICHI [JP]
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1262316 A1 20021204; EP 1262316 B1 20041117; AT E282527 T1 20041215; CN 1212929 C 20050803; CN 1387997 A 20030101; DE 50104542 D1 20041223; ES 2233523 T3 20050616; HK 1052321 A1 20030911; HK 1052321 B 20060310; JP 2003039626 A 20030213; JP 3556205 B2 20040818; US 2002189471 A1 20021219; US 6698354 B2 20040302
DOCDB simple family (application)
EP 01112706 A 20010525; AT 01112706 T 20010525; CN 02120630 A 20020522; DE 50104542 T 20010525; ES 01112706 T 20010525; HK 03104679 A 20030702; JP 2002148853 A 20020523; US 15482702 A 20020528