(19) |
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(11) |
EP 1 516 744 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
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04.07.2007 Bulletin 2007/27 |
(43) |
Date of publication A2: |
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23.03.2005 Bulletin 2005/12 |
(22) |
Date of filing: 17.09.2004 |
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(51) |
International Patent Classification (IPC):
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(84) |
Designated Contracting States: |
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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
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Designated Extension States: |
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AL HR LT LV MK |
(30) |
Priority: |
19.09.2003 JP 2003327515
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(71) |
Applicant: FUJIFILM Corporation |
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Minato-ku
Tokyo (JP) |
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(72) |
Inventors: |
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- Sawada, Hirokazu
Fuji Photo Film, Co., Ltd.
Haibara-gun
Shizuoka (JP)
- Uesugi, Akio
Fuji Photo Film, Co., Ltd.
Haibara-gun
Shizuoka (JP)
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(74) |
Representative: HOFFMANN EITLE |
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Patent- und Rechtsanwälte
Arabellastrasse 4 81925 München 81925 München (DE) |
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(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.