BE878547A - Matiere photographique directement positive - Google Patents

Matiere photographique directement positive

Info

Publication number
BE878547A
BE878547A BE0/196975A BE196975A BE878547A BE 878547 A BE878547 A BE 878547A BE 0/196975 A BE0/196975 A BE 0/196975A BE 196975 A BE196975 A BE 196975A BE 878547 A BE878547 A BE 878547A
Authority
BE
Belgium
Prior art keywords
photographic material
positive photographic
directly positive
directly
positive
Prior art date
Application number
BE0/196975A
Other languages
English (en)
Original Assignee
Ciba Geigy
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Ciba Geigy filed Critical Ciba Geigy
Publication of BE878547A publication Critical patent/BE878547A/fr

Links

Classifications

    • G—PHYSICS
    • G03—PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03C—PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00—Photosensitive materials
    • G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/485—Direct positive emulsions
    • G03C1/48515—Direct positive emulsions prefogged
    • G03C1/48523—Direct positive emulsions prefogged characterised by the desensitiser
    • G03C1/4853—Direct positive emulsions prefogged characterised by the desensitiser polymethine dyes

Landscapes

  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
BE0/196975A 1978-09-01 1979-08-31 Matiere photographique directement positive BE878547A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH925478A CH637488A5 (en) 1978-09-01 1978-09-01 Direct-positive photographic emulsions

Publications (1)

Publication Number Publication Date
BE878547A true BE878547A (fr) 1980-02-29

Family

ID=4350003

Family Applications (1)

Application Number Title Priority Date Filing Date
BE0/196975A BE878547A (fr) 1978-09-01 1979-08-31 Matiere photographique directement positive

Country Status (3)

Country Link
JP (1) JPS5562442A (fr)
BE (1) BE878547A (fr)
CH (1) CH637488A5 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035970A3 (fr) * 1980-03-07 1982-10-06 Ciba-Geigy Ag Matériau négatif photographique avec au moins une couche contenant une émulsion à l'halogénure d'argent désensibilisée, procédé pour sa production, utilisation du matériau pour la production d'images photographiques et utilisation de cyanines heptaméthiniques trinucléaires comme désensibilisateurs dans les matériaux négatifs photographiques

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0035970A3 (fr) * 1980-03-07 1982-10-06 Ciba-Geigy Ag Matériau négatif photographique avec au moins une couche contenant une émulsion à l'halogénure d'argent désensibilisée, procédé pour sa production, utilisation du matériau pour la production d'images photographiques et utilisation de cyanines heptaméthiniques trinucléaires comme désensibilisateurs dans les matériaux négatifs photographiques

Also Published As

Publication number Publication date
JPS5562442A (en) 1980-05-10
CH637488A5 (en) 1983-07-29

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Legal Events

Date Code Title Description
RE Patent lapsed

Owner name: ILFROD A.G.

Effective date: 19910831