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1. WO2000038011 - PROCESS FOR TREATMENT OF HIGH SPEED PHOTOGRAPHIC MATERIALS

Publication Number WO/2000/038011
Publication Date 29.06.2000
International Application No. PCT/GB1999/004234
International Filing Date 14.12.1999
Chapter 2 Demand Filed 30.06.2000
IPC
G03C 1/025 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
1Photosensitive materials
005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
025Physical treatment of emulsions, e.g. by ultrasonics, refrigeration, pressure
G03C 5/02 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
5Photographic processes or agents therefor; Regeneration of such processing agents
02Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges
G03C 7/30 2006.01
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
7Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
CPC
G03C 1/025
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
1Photosensitive materials
005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
025Physical treatment of emulsions, e.g. by ultrasonics, refrigeration, pressure
G03C 2200/49
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
2200Details
49Pressure means or conditions
G03C 5/02
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
5Photographic processes or agents therefor; Regeneration of such processing agents
02Sensitometric processes, e.g. determining sensitivity, colour sensitivity, gradation, graininess, density; Making sensitometric wedges
G03C 7/3041
GPHYSICS
03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES
7Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
30Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
3041Materials with specific sensitometric characteristics, e.g. gamma, density
Applicants
  • EASTMAN KODAK COMPANY [US]/[US] (AllExceptUS)
  • BROADHEAD, Patrick [GB]/[GB] (UsOnly)
  • CHRISTIANSON, Michael [GB]/[GB] (UsOnly)
  • CODLING, Adrian, James, Bower [GB]/[GB] (UsOnly)
  • KING, Roy [GB]/[GB] (UsOnly)
Inventors
  • BROADHEAD, Patrick
  • CHRISTIANSON, Michael
  • CODLING, Adrian, James, Bower
  • KING, Roy
Agents
  • NUNNEY, R., F., A.
Priority Data
9828152.022.12.1998GB
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) PROCESS FOR TREATMENT OF HIGH SPEED PHOTOGRAPHIC MATERIALS
(FR) PROCEDE DE TRAITEMENT DE MATERIELS PHOTOGRAPHIQUES A GRANDE VITESSE
Abstract
(EN)
A process for the treatment of a photographic material particularly a high speed photographic material, comprising an emulsion containing silver halide grains the treatment being to reduce the sensitivity of the material to ionizing radiation comprises prior to exposure, subjecting the material to a treatment that reduces the surface image dispersity so that fewer centres develop on each grain. The process may involve subjecting the photographic emulsion to physical pressure to deform the grains to introduce internal trapping centres for latent image formation so that a proportion of the latent image can be formed within the grains rather than on the grain surface.
(FR)
L'invention se rapporte à un procédé de traitement d'un matériel photographique, notamment un matériel photographique à grande vitesse, qui comprend une émulsion contenant des grains d'halogénure d'argent, le traitement étant destiné à réduire la sensibilité du matérial à un rayonnement ionisant. Le procédé consiste, préalablement à l'exposition, à soumettre le matériel à un traitement pouvant réduire la dispersité de l'image de surface, de manière à laisser moins de centres se développer sur chaque grain. Le procédé peut consister à soumettre l'émulsion photographique à une pression physique propre à déformer les grains et permettre l'introduction de centres pièges internes destinés à la formation d'une image latente, de sorte qu'une partie de l'image latente puisse être formée à l'intérieur de grains plutôt qu'à leur surface.
Also published as
Latest bibliographic data on file with the International Bureau