| (19) |
 |
|
(11) |
EP 0 015 164 A3 |
| (12) |
EUROPEAN PATENT APPLICATION |
| (88) |
Date of publication A3: |
|
12.11.1980 Bulletin 1980/23 |
| (43) |
Date of publication A2: |
|
03.09.1980 Bulletin 1980/18 |
| (22) |
Date of filing: 27.02.1980 |
|
|
| (84) |
Designated Contracting States: |
|
BE DE FR GB IT LU NL SE |
| (30) |
Priority: |
27.02.1979 GB 7906888
|
| (71) |
Applicant: Vickers Limited |
|
() |
|
| (72) |
Inventors: |
|
- Jude, Rodney Francis
()
- Atkinson, Cyril John
()
- Murphy, John Phillip
()
- Figov, Murray
()
|
|
| |
|
| (54) |
Duplicating stencil assembly and method for its production |
(57) A backing sheet with the usual punched heading carries a stencil sheet composed of
a conventional tissue layer to which an ink-impermeable coating is attached by a layer
of adhesive. An electrophotographic toner image formed on the backing sheet is bonded
to the impermeable coating of the stencil sheet such that when the assembly is mounted
on a duplicating machine and the body of the backing sheet stripped off it forms the
stencil by removing parts of the impermeable layer. The stencil sheet is attached
to the heading by a line of heat and/or pressure sensitive resin, preferably the toner
which also forms the image. The assembly is thus easily produced from preformed backing
and stencil sheets in a modified electrostatic copying machine.