EP 0160920 B1 19900919 - ONE-STEP ELECTROCHEMICAL IMAGE-FORMING PROCESS FOR REPRODUCTION SHEETS
Title (en)
ONE-STEP ELECTROCHEMICAL IMAGE-FORMING PROCESS FOR REPRODUCTION SHEETS
Publication
Application
Priority
DE 3416867 A 19840508
Abstract (en)
[origin: US4614570A] In a novel process described for the image formation on reproduction layers which are optionally radiation-sensitive, an image is formed on a multi-layered material, which comprises at least one electrically conductive layer and a reproduction layer, by the action of electric current, applied via at least one electrode which can be stylus-shaped, in an aqueous electrolyte solution. Those portions of the layer which correspond to non-image areas are removed by the electrochemical treatment. An electrolyte solution is used, in particular, which has a pH in the range from 2.0 to 10.0 and which contains at least one salt in a concentration ranging from about 0.1 weight percent up to the saturation limit of the particular salt in the solution. The aqueous electrolyte solution may also contain a surfactant in a concentration range of about 0.1 weight percent to 5 weight percent.
IPC 1-7
IPC 8 full level
B41M 5/20 (2006.01); B41C 1/10 (2006.01); C25F 3/14 (2006.01)
CPC (source: EP US)
B41C 1/1041 (2013.01 - EP US)
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
EP 0160920 A2 19851113; EP 0160920 A3 19870902; EP 0160920 B1 19900919; DE 3416867 A1 19851114; DE 3579737 D1 19901025; JP S60244597 A 19851204; US 4614570 A 19860930
DOCDB simple family (application)
EP 85105257 A 19850430; DE 3416867 A 19840508; DE 3579737 T 19850430; JP 9615285 A 19850508; US 73063285 A 19850506