(19) |
 |
|
(11) |
EP 0 144 201 A3 |
(12) |
EUROPEAN PATENT APPLICATION |
(88) |
Date of publication A3: |
|
01.04.1987 Bulletin 1987/14 |
(43) |
Date of publication A2: |
|
12.06.1985 Bulletin 1985/24 |
(22) |
Date of filing: 23.11.1984 |
|
|
(84) |
Designated Contracting States: |
|
DE GB |
(30) |
Priority: |
25.11.1983 JP 22058783
|
(71) |
Applicant: FUJI PHOTO FILM CO., LTD. |
|
() |
|
(72) |
Inventors: |
|
- Kunichika, Kenji
()
- Matsumoto, Hiroshi
()
- Kita, Nobuyuki
()
|
|
|
|
(54) |
Plate cleaner for electrophotolithographic printing plate |
(57) A plate cleaner for an electrophotolithographic printing plate and a process for
preventing background stains of a lithographic plate using the plate cleaner are described,
comprising a suspension or an emulsion containing as main component (1) a water solution
of a compound capable of producing a hydrophilic substance by reaction with zinc oxide,
(2) a hydrocarbon solvent, and (3) a surface active agent to remove background contamination
from a plate surface.