| (19) |
 |
|
(11) |
EP 1 516 744 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
04.07.2007 Bulletin 2007/27 |
| (43) |
Date of publication A2: |
|
23.03.2005 Bulletin 2005/12 |
| (22) |
Date of filing: 17.09.2004 |
|
| (51) |
International Patent Classification (IPC):
|
|
| (84) |
Designated Contracting States: |
|
AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PL PT RO SE SI SK TR
|
|
Designated Extension States: |
|
AL HR LT LV MK |
| (30) |
Priority: |
19.09.2003 JP 2003327515
|
| (71) |
Applicant: FUJIFILM Corporation |
|
Minato-ku
Tokyo (JP) |
|
| (72) |
Inventors: |
|
- Sawada, Hirokazu
Fuji Photo Film, Co., Ltd.
Haibara-gun
Shizuoka (JP)
- Uesugi, Akio
Fuji Photo Film, Co., Ltd.
Haibara-gun
Shizuoka (JP)
|
| (74) |
Representative: HOFFMANN EITLE |
|
Patent- und Rechtsanwälte
Arabellastrasse 4
81925 München
81925 München (DE) |
|
| |
|
| (54) |
Aluminium alloy blank for lithographic printing plate and support for lithographic
printing plate |
(57) There is provided an aluminum alloy blank for a lithographic printing plate comprising
iron in a range of 0.20 to 0.80 wt%; and the balance being aluminum, a crystal grain
refining element, and unavoidable impurity elements. In the aluminum alloy blank,
a content of silicon is in a range of 0.02 to 0.30 wt% and a content of copper is
equal to or below 0.05 wt% among the impurity elements, and a solid solution amount
of silicon is in a range of 150 ppm to 1500 ppm inclusive.