EP 0069320 B1 19860611 - LITHOGRAPHIC PLATE SUPPORT MATERIALS WITH HYDROPHILIC PROPERTIES, PROCESSES FOR THEIR MANUFACTURE AND THEIR USE
Title (en)
LITHOGRAPHIC PLATE SUPPORT MATERIALS WITH HYDROPHILIC PROPERTIES, PROCESSES FOR THEIR MANUFACTURE AND THEIR USE
Publication
Application
Priority
DE 3126636 A 19810706
Abstract (en)
[origin: US4427765A] The plate-, foil- or strip-shape support materials for offset printing plates are based on chemically, mechanically and/or electromechanically roughened aluminum, or on one of its alloys. Optionally, the aluminum may also have an aluminum oxide layer produced by anodic oxidation. One of the two surfaces the support material has a hydrophilic coating of at least one salt-type hydrophilic organic polymer which is a complex-type product obtained by reacting (a) a water-soluble organic polymer having acid functional groups containing phosphorus or sulfur (for example, polyvinylphosphonic or polyvinylsulfonic acid) with (b) a salt of an at least divalent metal cation. In a process for manufacturing this support material, the complex-type reaction product, dissolved in an aqueous acid, is applied to at least one surface of the support material and the support material thus modified is dried. It is also possible, however, to produce the complex-type reaction product of the components (a) and (b) on the support material. The support material is used in the preparation of offset printing plates having a light-sensitive layer.
IPC 1-7
IPC 8 full level
B41C 3/00 (2006.01); B41N 1/08 (2006.01); B41N 1/14 (2006.01); B41N 3/03 (2006.01)
CPC (source: EP US)
B41N 3/036 (2013.01 - EP US); B41N 3/038 (2013.01 - EP US)
Designated contracting state (EPC)
AT BE CH DE FR GB IT LI NL SE
DOCDB simple family (publication)
EP 0069320 A1 19830112; EP 0069320 B1 19860611; AT E20327 T1 19860615; AU 556302 B2 19861030; AU 8558782 A 19830113; BR 8203904 A 19830628; CA 1178857 A 19841204; DE 3126636 A1 19830127; DE 3271644 D1 19860717; ES 513734 A0 19840201; ES 526743 A0 19840701; ES 8402434 A1 19840201; ES 8406123 A1 19840701; FI 822366 A0 19820702; FI 822366 L 19830107; JP H0342199 B2 19910626; JP S5816893 A 19830131; US 4427765 A 19840124; ZA 824358 B 19830427
DOCDB simple family (application)
EP 82105718 A 19820628; AT 82105718 T 19820628; AU 8558782 A 19820705; BR 8203904 A 19820705; CA 405713 A 19820622; DE 3126636 A 19810706; DE 3271644 T 19820628; ES 513734 A 19820705; ES 526743 A 19831025; FI 822366 A 19820702; JP 11633282 A 19820706; US 39113182 A 19820623; ZA 824358 A 19820621