EP 0007233 A1 19800123 - A method of treating aluminium foil or a lithographic printing plate support and products so obtained.
Title (en)
A method of treating aluminium foil or a lithographic printing plate support and products so obtained.
Title (de)
Verfahren zur Behandlung von Aluminiumfolien oder Flachdruckplatten sowie die so erhaltenen Produkte.
Title (fr)
Procédé de traitement de feuilles d'aluminium on de plaques lithographiques et produits obtenus de cette mainère.
Publication
Application
Priority
GB 7829705 A 19780713
Abstract (en)
Aluminium (1) is immersed in a bath (2) containing phosphate ions before anodising in a bath (3) containing sulphate ions. When the substrate is aluminium foil in web form, preferably the phosphate bath serves as a liquid junction cell by which the anodising current is introduced into the web. Aluminium foil or sheet so processed is especially suitable as a base for a presensitised lithographic printing plate.
IPC 1-7
IPC 8 full level
B41N 3/00 (2006.01); B41N 3/03 (2006.01); C25D 11/16 (2006.01); C25F 3/04 (2006.01)
CPC (source: EP)
B41N 3/034 (2013.01); C25D 11/16 (2013.01)
Citation (search report)
- DE 2557222 A1 19770630 - POLYCHROME CORP
- US 3834998 A 19740910 - WATANABE M, et al
- US 3929591 A 19751230 - CHU SIMON LONG, et al
Designated contracting state (EPC)
AT BE CH DE FR GB IT LU NL SE
DOCDB simple family (publication)
EP 0007233 A1 19800123; EP 0007233 B1 19820428; AT E926 T1 19820515; DE 2962623 D1 19820609
DOCDB simple family (application)
EP 79301377 A 19790712; AT 79301377 T 19790712; DE 2962623 T 19790712