GB1477376A - Photographic silver halide colour process - Google Patents
Photographic silver halide colour processInfo
- Publication number
- GB1477376A GB1477376A GB5266474A GB5266474A GB1477376A GB 1477376 A GB1477376 A GB 1477376A GB 5266474 A GB5266474 A GB 5266474A GB 5266474 A GB5266474 A GB 5266474A GB 1477376 A GB1477376 A GB 1477376A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dye
- silver halide
- silver
- redox
- image
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired
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
- G03C8/00—Diffusion transfer processes or agents therefor; Photosensitive materials for such processes
- G03C8/02—Photosensitive materials characterised by the image-forming section
- G03C8/08—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds
-
- 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
- G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
- G03C7/28—Silver dye bleach processes; Materials therefor; Preparing or processing such materials
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
- Y10S430/156—Precursor compound
- Y10S430/159—Development dye releaser, DDR
Landscapes
- 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)
Abstract
1477376 Photographic silver halide colour process EASTMAN KODAK CO 5 Dec 1974 [6 Dec 1973] 52664/74 Heading G2C A photo-sensitive material comprising a support bearing at least one silver halide emulsion layer and a non-diffusible redox dye releaser, i.e. compounds which will redox with oxidized developing agent and then release a diffusible dye, for example by alkaline hydrolysis, in the emulsion layer or a layer adjacent thereto is imagewise exposed, treated with an alkaline processing composition in the presence of a silver halide developing agent to form a silver image and an imagewise distribution of diffusible dye which diffuses out of the material, treated with a silver-dye-bleach bath to decolourize any imagewise released dye which has not diffused out of the material and then treated to remove the silver image and silver halide and leave a dye image which is negative in relation to the silver image. The redox dye releaser may have the Formula:- where Z is a bleachable dye moiety having a predominant spectral absorption within the region of the visible spectrum to which the associated silver halide emulsion is sensitive or a precursor of such a dye; Ballast is an organic ballasting group; G is OR or NHR'; R is H or a hydrolyzable moiety; R' is H, 1-22C cycloalkyl or optionally substituted alkyl; n is 0 or 1 and is I when G is OR or when R' is H or alkyl having less than 8C; and Y is H or completes a fused aromatic ring. Other redox dye releasers are described and claimed in Specifications 1458471; 1465183 and 1465184. The above process can also be used to form colour transfer images. In Example III a combined silver-dyebleach and bleach-fix bath is used.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US422390A US3923510A (en) | 1973-12-06 | 1973-12-06 | Process for producing color images by bleaching redox diffusible dye releasers |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1477376A true GB1477376A (en) | 1977-06-22 |
Family
ID=23674681
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5266474A Expired GB1477376A (en) | 1973-12-06 | 1974-12-05 | Photographic silver halide colour process |
Country Status (7)
Country | Link |
---|---|
US (1) | US3923510A (en) |
JP (1) | JPS5092133A (en) |
BE (1) | BE823080A (en) |
CA (1) | CA1052613A (en) |
DE (1) | DE2457307A1 (en) |
FR (1) | FR2254046B1 (en) |
GB (1) | GB1477376A (en) |
Families Citing this family (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2368064A1 (en) * | 1976-10-15 | 1978-05-12 | Kodak Pathe | PROCESS FOR FORMING IMAGES IN |
DE2733112A1 (en) * | 1977-07-22 | 1979-02-08 | Agfa Gevaert Ag | PHOTOGRAPHIC COLOR DIFFUSION TRANSFER PROCESS |
DE2848455A1 (en) * | 1977-11-10 | 1979-05-17 | Eastman Kodak Co | PHOTOGRAPHIC RECORDING MATERIAL |
FR2414745A1 (en) * | 1978-01-11 | 1979-08-10 | Kodak Pathe | Diffusion transfer photographic process - using ballasted coupler which forms diffusible gp. by reaction with primary aromatic amine developer |
US4256826A (en) * | 1978-08-14 | 1981-03-17 | Eastman Kodak Company | Bleach-fix sheets |
JPS59177553A (en) * | 1983-03-28 | 1984-10-08 | Fuji Photo Film Co Ltd | Silver halide color photosensitive material |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US351673A (en) * | 1886-10-26 | Device for hanging picture-frames | ||
US2728290A (en) * | 1953-03-31 | 1955-12-27 | Eastman Kodak Co | Photographic reproduction process, including transfer of azo dyes |
US3498787A (en) * | 1965-08-20 | 1970-03-03 | Eastman Kodak Co | Rapid dye-bleach photographic process and element comprising dye-developers |
US3503741A (en) * | 1966-11-04 | 1970-03-31 | Eastman Kodak Co | Silver-dye-bleach process utilizing formazan dyes |
US3751406A (en) * | 1967-07-24 | 1973-08-07 | Polaroid Corp | Azo compounds useful in photographic processes |
US3698897A (en) * | 1971-07-06 | 1972-10-17 | Eastman Kodak Co | Diffusion transfer processes and film units comprising compounds which are cleavable upon oxidation in alkali media to produce diffusible dyes or dye precursors |
US3725062A (en) * | 1971-07-06 | 1973-04-03 | Eastman Kodak Co | Color diffusion processes utilizing hydroquinones which provide dye image materials upon oxidation in alkaline conditions |
BE789689A (en) * | 1971-10-04 | 1973-04-04 | Eastman Kodak Co | PHOTOSENSITIVE ELEMENT AND ITS APPLICATION TO COLOR PHOTOGRAPHY BY DIFFUSION-TRANSFER |
-
1973
- 1973-12-06 US US422390A patent/US3923510A/en not_active Expired - Lifetime
-
1974
- 1974-11-05 CA CA213,004A patent/CA1052613A/en not_active Expired
- 1974-12-04 DE DE19742457307 patent/DE2457307A1/en active Pending
- 1974-12-05 GB GB5266474A patent/GB1477376A/en not_active Expired
- 1974-12-05 FR FR7439764A patent/FR2254046B1/fr not_active Expired
- 1974-12-06 BE BE151274A patent/BE823080A/en unknown
- 1974-12-06 JP JP49139681A patent/JPS5092133A/ja active Pending
Also Published As
Publication number | Publication date |
---|---|
JPS5092133A (en) | 1975-07-23 |
US3923510A (en) | 1975-12-02 |
FR2254046A1 (en) | 1975-07-04 |
BE823080A (en) | 1975-06-06 |
FR2254046B1 (en) | 1976-10-22 |
CA1052613A (en) | 1979-04-17 |
DE2457307A1 (en) | 1975-06-19 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB1342524A (en) | Photosensitive heat-processable photographic materials | |
GB1402107A (en) | Photographic silver halide material containing a diffusible-dye-providing substance | |
US3963492A (en) | Method for processing silver dye bleach materials | |
GB1477376A (en) | Photographic silver halide colour process | |
GB1421126A (en) | Processing silver halide photographic materials | |
GB1398979A (en) | Pyrazolotriazole compounds | |
GB1487083A (en) | Photographic material containing an iodoso or iodoxy oxidant | |
GB1234632A (en) | ||
US4036643A (en) | Diffusion transfer color process using lactone or sultone ring containing lipophilic non-diffusing color formers which yield diffusing dyes | |
JPS5465034A (en) | Photographic light sensitive sheet for use in color diffusion transfer method | |
US2992105A (en) | Photographic diffusion transfer reversal processes | |
JPS55110245A (en) | Color photograph treating method | |
JPS5689738A (en) | Forming method for photographic image | |
GB1481570A (en) | Photographic process and polymeric oxidants useful therei | |
JPS5540402A (en) | Photosensitive sheet for color diffusion transfer photography | |
GB1376234A (en) | Photographic dye diffusion transfer process | |
US3854944A (en) | Production of a sound track with anti-foggant in the redeveloper solution | |
GB1531282A (en) | Methods and materials for silver halide colour photograph | |
JPS5543586A (en) | Photosensitive sheet for color diffusion transfer photography | |
JPS5540401A (en) | Photosensitive sheet for color diffusion transfer photography | |
US3531283A (en) | Preparation of direct positives by development with leuco derivatives | |
KR800000278B1 (en) | Developing solution of sensitive material for color paper | |
JPS64953A (en) | Method for processing silver halide color photographic sensitive material improving color reproduction and cyan stains | |
US3431260A (en) | Novel keto-hydroxy-perinaphthoxazines | |
GB1204964A (en) | Photographic silver halide colour development |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |