EP 0167087 B1 19880803 - PROCESS FOR THE ELECTROCHEMICAL ROUGHENING OF STEEL PLATES FOR USE AS SUPPORTS FOR OFF-SET PRINTING PLATES, AS WELL AS AN ELECTROLYTIC SOLUTION SUITABLE FOR THE PROCESS
Title (en)
PROCESS FOR THE ELECTROCHEMICAL ROUGHENING OF STEEL PLATES FOR USE AS SUPPORTS FOR OFF-SET PRINTING PLATES, AS WELL AS AN ELECTROLYTIC SOLUTION SUITABLE FOR THE PROCESS
Publication
Application
Priority
DE 3424529 A 19840704
Abstract (en)
[origin: US4614571A] Disclosed is a process and an electrolyte solution for electrochemically roughening steel-based supports for offset printing plates. The treatment is carried out in a hydrochloric acid electrolyte which comprises at least one wetting agent inhibitor. As a result, a uniform surface topography of the plates is achieved, while largely avoiding the formation of scars. The roughened plates are corrosion-resistant and can be coated either directly or indirectly after first treating the plates to render them hydrophilic.
IPC 1-7
IPC 8 full level
B41N 1/08 (2006.01); B41N 3/00 (2006.01); B41N 3/03 (2006.01); C25F 3/06 (2006.01)
CPC (source: EP US)
B41N 3/038 (2013.01 - EP US); C25F 3/06 (2013.01 - EP US)
Designated contracting state (EPC)
DE FR GB IT
DOCDB simple family (publication)
EP 0167087 A1 19860108; EP 0167087 B1 19880803; DE 3424529 A1 19860109; DE 3564137 D1 19880908; JP S6125887 A 19860204; US 4614571 A 19860930
DOCDB simple family (application)
EP 85107826 A 19850624; DE 3424529 A 19840704; DE 3564137 T 19850624; JP 14594785 A 19850704; US 75152285 A 19850703