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1. (WO1979001020) PHOTOSENSITIVE ELEMENTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1979/001020 International Application No.: PCT/US1979/000294
Publication Date: 29.11.1979 International Filing Date: 01.05.1979
IPC:
G03C 1/053 (2006.01) ,G03C 1/06 (2006.01) ,G03C 1/95 (2006.01) ,G03C 8/02 (2006.01) ,G03C 8/08 (2006.01)
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
1
Photosensitive materials
005
Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
04
with macromolecular additives; with layer-forming substances
053
Polymers obtained by reactions only involving carbon-to-carbon unsaturated bonds, e.g. vinyl polymers
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
1
Photosensitive materials
005
Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
06
with non-macromolecular additives
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
1
Photosensitive materials
76
Photosensitive materials characterised by the base or auxiliary layers
95
rendered opaque or writable, e.g. with inert particulate additives
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
8
Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
02
Photosensitive materials characterised by the image-forming section
G PHYSICS
03
PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
C
PHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR OR STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
8
Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
02
Photosensitive materials characterised by the image-forming section
08
the substances transferred by diffusion consisting of organic compounds
Applicants:
Inventors:
Priority Data:
90199502.05.1978US
Title (EN) PHOTOSENSITIVE ELEMENTS
(FR) ELEMENTS PHOTOSENSIBLES
Abstract:
(EN) Photosensitive elements particularly suitable for use in diffusion transfer photographic film units which include a plurality of essential layers including at least one photosensitive silver halide layer having associated therewith a dye image-forming material which is diffusible during processing as a function of the point-to-point degree of silver halide exposure to actinic radiation and a layer adapted to receive image-forming material diffusing thereto and means for applying an aqueous processing composition. The silver halide layer comprises gelatin and inert particles which are compatible with gelatin, non-swelling in alkali and substantially non-film forming, wherein said inert particles are equal to or less than the silver halide grains in average diameter and wherein the silver halide grains are 2.5 microns or less in average diameter. Preferably, the inert particles are derived from a polymeric latex. In a particularly preferred embodiment, the photosensitive silver halide layer comprises a first and second photosensitive silver halide layer in contiguous relationship.
(FR) Des elements photosensibles particulierement appropries a l"utilisation dans les films photographiques de transfert par diffusion comprennent une pluralite de couches essentielles comprenant au moins une couche d"halogenure d"argent photosensible ayant un materiau colorant de formation d"images qui est diffusible pendant le traitement point-a-point d"exposition de l"halogenure d"argent a un rayonnement actinique et une couche adaptee pour un materiau de formation d"images s"y diffusant et des moyens d"application d"une composition de traitement aqueuse. La couche d"halogenure d"argent consiste en de la gelatine et des particules inertes qui sont compatibles avec la gelatine, qui ne se gonfle pas en milieu alcalin et ne forme pratiquement pas de film, ou lesdites particules inertes sont egales ou inferieures en diametre moyen aux grains d"halogenure d"argent. De preference, les particules inertes sont derivees d"un latex polymere. Dans un mode preferentiel de realisation, la couche d"halogenure d"argent photosensible comprend une premiere et une seconde couches contigues photosensibles d"halogenure d"argent.
Designated States:
Publication Language: English (EN)
Filing Language: English (EN)