| (19) |
 |
|
(11) |
EP 1 518 710 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
08.06.2005 Bulletin 2005/23 |
| (43) |
Date of publication A2: |
|
30.03.2005 Bulletin 2005/13 |
| (22) |
Date of filing: 24.08.2004 |
|
|
| (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: |
24.09.2003 JP 2003331342
|
| (71) |
Applicant: Fuji Photo Film Co., Ltd. |
|
Kanagawa (JP) |
|
| (72) |
Inventor: |
|
- Hotta, Hisashi Fuji Photo Film Co., Ltd.
Haibara-gun Shizuoka (JP)
|
| (74) |
Representative: HOFFMANN - EITLE |
|
Patent- und Rechtsanwälte Arabellastrasse 4
81925 München
81925 München (DE) |
|
| |
|
| (54) |
Support for lithographic printing plate and presensitized plate |
(57) A support for a lithographic printing plate is composed of a metal base that has
been grained and anodized then subjected to treatment with an aqueous solution containing
an inorganic fluorine compound and a phosphate compound, followed or preceded by treatment
with a silicate compound-containing aqueous solution, and an intermediate layer which
lies on the treated metal base and contains an acid group-bearing polymeric compound.
Presensitized plates composed in part of the support, when used as on-machine development
type plates, have a good on-machine developability, high sensitivity, long press life
and good resistance to scumming. When used as positive or negative-working thermal
plates, such presensitized plates efficiently utilize heat in image formation, have
a high sensitivity and a long press life, and minimize scumming in non-image areas.