Increasing gradation during processing of colour photographic material, especially negative paper

Increasing gradation during processing of colour photographic material, especially negative paper

- In processing colour photographic material by (a) selective exposure, (b) colour development, (c), bleaching, (d) fixing, (e) washing or stabilisation and (f) drying, in which steps (c) and (d) for bleach-fixing may be combined, the image gradation is increased by heating the material at 60-240 de...

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Bibliographische Detailangaben
Hauptverfasser: DRABER, EDGAR., 51519 ODENTHAL, DE, TROMNAU, RUDOLF., 51061 KOELN, DE, PETERS, MANFRED., 51373 LEVERKUSEN, DE
Format: Patent
Sprache:eng ; ger
Schlagworte:
AUXILIARY PROCESSES IN PHOTOGRAPHY
CINEMATOGRAPHY
ELECTROGRAPHY
HOLOGRAPHY
PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR,STEREO-PHOTOGRAPHIC PROCESSES
PHOTOGRAPHY
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
PHYSICS
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Beschreibung
Zusammenfassung:- In processing colour photographic material by (a) selective exposure, (b) colour development, (c), bleaching, (d) fixing, (e) washing or stabilisation and (f) drying, in which steps (c) and (d) for bleach-fixing may be combined, the image gradation is increased by heating the material at 60-240 deg C for 0.01-30 seconds between exposure and development.