| (19) |
 |
|
(11) |
EP 0 281 727 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
31.01.1990 Bulletin 1990/05 |
| (43) |
Date of publication A2: |
|
14.09.1988 Bulletin 1988/37 |
| (22) |
Date of filing: 14.01.1988 |
|
| (51) |
International Patent Classification (IPC)4: G03G 13/28 |
|
| (84) |
Designated Contracting States: |
|
CH DE FR GB LI NL |
| (30) |
Priority: |
09.03.1987 JP 54450/87
14.04.1987 JP 92436/87
|
| (71) |
Applicant: MITSUBISHI PAPER MILLS, LTD. |
|
Chiyoda-ku
Tokyo 100 (JP) |
|
| (72) |
Inventors: |
|
- Suzuki, Shigeyoshi
6-6, Kaiden 1-chome
Nagaokakyo-shi (JP)
- Furukawa, Akira
6-6, Kaiden 1-chome
Nagaokakyo-shi (JP)
|
| (74) |
Representative: Hansen, Bernd, Dr.rer.nat. et al |
|
Hoffmann, Eitle & Partner
Patentanwälte
Postfach 81 04 20
81904 München
81904 München (DE) |
|
| |
|
| (54) |
A method for making a lithographic printing plate, the use of such a printing plate
for printing, and a method of printing using such a printing plate |
(57) This invention provides a method for making a lithographic printing plate of high
resolving power and high printing endurance which comprises imagewise exposing a photoreceptor
having a conductive layer and a printing sheet comprising a conductive support having
thereon a dielectric non-photosensitive layer which are placed opposite to each other
while applying a direct voltage between said conductive layer and said conductive
support by a direct current source to form a positive electrostatic latent image on
said non-photosensitive layer of the printing sheet and then subjecting the image
to development and fixation.
The use of such a printing plate for printing an image on a substrate is also provided,
together with a method of printing using such a printing plate.