| (19) |
 |
|
(11) |
EP 0 444 870 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
22.04.1992 Bulletin 1992/17 |
| (43) |
Date of publication A2: |
|
04.09.1991 Bulletin 1991/36 |
| (22) |
Date of filing: 26.02.1991 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE FR IT NL |
| (30) |
Priority: |
26.02.1990 US 485145
|
| (71) |
Applicant: MINNESOTA MINING AND MANUFACTURING COMPANY |
|
St. Paul,
Minnesota 55133-3427 (US) |
|
| (72) |
Inventors: |
|
- Wang, Paul J.,
c/o Minnesota Mining and
St. Paul,
Minnesota 55133-3427 (US)
- Lehman, Gaye K.,
c/o Minnesota Mining and
St. Paul,
Minnesota 55133-3427 (US)
|
| (74) |
Representative: Baillie, Iain Cameron et al |
|
c/o Ladas & Parry
52-54 High Holborn
London WC1V 6RR
London WC1V 6RR (GB) |
|
| |
|
| (54) |
Receptor sheet for a toner developed electrostatic imaging process |
(57) An electrographic imaging process is described in which electrostatic images are
toned in sequence to form a multicolor intermediate image on a temporary dielectric
receptor. The intermediate image is then transferred to a permanent receptor. Certain
relative properties of the toner and the intermediate image, such as surface energy,
T
g, work of adhesion, and complex dynamic viscosity, have been found to be important
to the production of good final images.