EP 0089508 B1 19870415 - PROCESS FOR THE ELECTROLYTIC ROUGHENING OF ALUMINIUM AND ITS APPLICATION AS A SUPPORT FOR OFFSET PRINTING PLATES
Title (en)
PROCESS FOR THE ELECTROLYTIC ROUGHENING OF ALUMINIUM AND ITS APPLICATION AS A SUPPORT FOR OFFSET PRINTING PLATES
Publication
Application
Priority
US 35933882 A 19820318
Abstract (en)
[origin: US4374710A] Aluminum is electrolytically grained in an aqueous solution of nitric and oxalic acids to provide a surface structure suitable for use as part of a lithographic printing plate. The electrolyte may also optionally contain boric acid and/or aluminum nitrate and/or hydrogen peroxide.
IPC 1-7
IPC 8 full level
C25D 3/04 (2006.01); B41N 3/03 (2006.01); C25F 3/04 (2006.01)
CPC (source: EP US)
B41N 3/034 (2013.01 - EP US); C25F 3/04 (2013.01 - EP US)
Citation (examination)
- DE 2149899 B2 19771208
- DE 2535142 A1 19760219 - EASTMAN KODAK CO
Designated contracting state (EPC)
DE GB
DOCDB simple family (publication)
US 4374710 A 19830222; BR 8301335 A 19831129; CA 1224181 A 19870714; DE 3370975 D1 19870521; EP 0089508 A1 19830928; EP 0089508 B1 19870415; JP S58171590 A 19831008
DOCDB simple family (application)
US 35933882 A 19820318; BR 8301335 A 19830317; CA 421763 A 19830216; DE 3370975 T 19830224; EP 83101811 A 19830224; JP 4330583 A 19830317