(19)
(11) EP 1 543 899 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
21.12.2005 Bulletin 2005/51

(43) Date of publication A2:
22.06.2005 Bulletin 2005/25

(21) Application number: 04078437.3

(22) Date of filing: 17.12.2004
(51) International Patent Classification (IPC)7B22D 11/06, B21B 3/00, B41N 1/08, C22C 21/00
(84) Designated Contracting States:
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IS IT LI LT LU MC NL PL PT RO SE SI SK TR
Designated Extension States:
AL BA HR LV MK YU

(30) Priority: 17.12.2003 EP 03079025

(71) Applicant: Fuji Photo Film B.V.
5047 TK Tilburg (NL)

(72) Inventors:
  • Wiegers, Ronaldus Johannes Theodor Hermanus
    5237 NA 's-Hertogenbosch (NL)
  • Sekiya, Toshiyuki
    5045 JW Tilburg (NL)
  • Koopmans, Sipke Jan
    5045 LP Tilburg (NL)

(74) Representative: Winckels, Johannes Hubertus F. et al
Vereenigde, Johan de Wittlaan 7
2517 JR Den Haag
2517 JR Den Haag (NL)

   


(54) Aluminium alloy substrate for digitally imageable lithographic printing plate and process for producing the same


(57) Disclosed is a method for the production of an aluminium alloy support for a digitally imageable lithographic printing plate, comprising forming a support by carrying out the subsequent steps of: followed by providing a digitally imageable coating on said support, whereby said printing plate is obtained, characterized in that said aluminium alloy composition contains an iron amount between 0.15% by weight and 0.50% by weight; a silicon amount between 0.05% by weight and 0.20% by weight; and a copper amount between 0.005% by weight and 0.040% by weight.





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