EP 0003929 A3 19790919 - PHOTOGRAPHIC PROCESS FOR THE PRODUCTION OF DRAWINGS ON A SUPPORT COVERED WITH A PHOTOGRAPHIC EMULSION, REALISED AND DEVELOPED IN DAYLIGHT, PRODUCT AND APPARATUS THEREFOR
Title (en)
PHOTOGRAPHIC PROCESS FOR THE PRODUCTION OF DRAWINGS ON A SUPPORT COVERED WITH A PHOTOGRAPHIC EMULSION, REALISED AND DEVELOPED IN DAYLIGHT, PRODUCT AND APPARATUS THEREFOR
Publication
Application
Priority
FR 7805479 A 19780227
Abstract (en)
[origin: EP0003929A2] A photographic process for forming designs on a support covered with a photographic emulsion. On a support such as a fog film, a design is made using an indelible varnish, and the zones not covered with varnish are developed, and this takes place during a period corresponding to the degree of development which it is desired to obtain. The relief parts of the indelible varnish are removed by means of an appropriate product and the emulsion which has remained untreated is redeveloped. The invention permits the production of designs by photographic means, not exhibiting any relief parts, and consequently more stable and more resistant, especially to projectors, and the production of graphics which are specific to the aforementioned technique (see Figure 3). <IMAGE>
IPC 1-7
IPC 8 full level
G03C 11/02 (2006.01); G03D 17/00 (2006.01); G03F 1/00 (2012.01)
CPC (source: EP)
G03C 11/02 (2013.01); G03D 17/00 (2013.01)
Citation (search report)
- [X] FR 1581671 A 19690919
- [X] FR 2241809 A1 19750321 - DANE AND SCOT LTD [GB]
- FR 1592468 A 19700511
- FR 952995 A 19491128
- GB 807047 A 19590107 - T CLARK & DAVIES LTD SA
- US 2140525 A 19381220 - GINMAN ALVAR T
- US 1709600 A 19290416 - BAKER HENRY M
- [A] GB 191118415 A 19120208 - JACOBS JOSEF [DE]
- [A] GB 1118301 A 19680626 - JOHN ANATOLE BRUN
Designated contracting state (EPC)
BE DE GB NL SE
DOCDB simple family (publication)
EP 0003929 A2 19790905; EP 0003929 A3 19790919; FR 2418481 A1 19790921
DOCDB simple family (application)
EP 79400088 A 19790209; FR 7805479 A 19780227