GB1324374A - Photographic dye developer diffusion transfer process - Google Patents
Photographic dye developer diffusion transfer processInfo
- Publication number
- GB1324374A GB1324374A GB4625370A GB4625370A GB1324374A GB 1324374 A GB1324374 A GB 1324374A GB 4625370 A GB4625370 A GB 4625370A GB 4625370 A GB4625370 A GB 4625370A GB 1324374 A GB1324374 A GB 1324374A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dye
- layer
- silver halide
- developing agent
- dye developer
- 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
- 238000009792 diffusion process Methods 0.000 title abstract 4
- 238000000034 method Methods 0.000 title abstract 2
- 239000000975 dye Substances 0.000 abstract 11
- 239000007788 liquid Substances 0.000 abstract 6
- 239000000463 material Substances 0.000 abstract 6
- -1 silver halide Chemical class 0.000 abstract 6
- 239000003795 chemical substances by application Substances 0.000 abstract 5
- 229910052709 silver Inorganic materials 0.000 abstract 5
- 239000004332 silver Substances 0.000 abstract 5
- 239000000839 emulsion Substances 0.000 abstract 4
- 239000002253 acid Substances 0.000 abstract 3
- 125000000217 alkyl group Chemical group 0.000 abstract 3
- 150000002596 lactones Chemical class 0.000 abstract 3
- 125000003545 alkoxy group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 229910052736 halogen Inorganic materials 0.000 abstract 2
- 150000002367 halogens Chemical class 0.000 abstract 2
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 2
- 150000003839 salts Chemical class 0.000 abstract 2
- BOBATFKNMFWLFG-UHFFFAOYSA-N 2-amino-2-cyano-n-methylacetamide Chemical compound CNC(=O)C(N)C#N BOBATFKNMFWLFG-UHFFFAOYSA-N 0.000 abstract 1
- 239000003513 alkali Substances 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- AJDUTMFFZHIJEM-UHFFFAOYSA-N n-(9,10-dioxoanthracen-1-yl)-4-[4-[[4-[4-[(9,10-dioxoanthracen-1-yl)carbamoyl]phenyl]phenyl]diazenyl]phenyl]benzamide Chemical compound O=C1C2=CC=CC=C2C(=O)C2=C1C=CC=C2NC(=O)C(C=C1)=CC=C1C(C=C1)=CC=C1N=NC(C=C1)=CC=C1C(C=C1)=CC=C1C(=O)NC1=CC=CC2=C1C(=O)C1=CC=CC=C1C2=O AJDUTMFFZHIJEM-UHFFFAOYSA-N 0.000 abstract 1
- PMOWTIHVNWZYFI-UHFFFAOYSA-N o-Coumaric acid Natural products OC(=O)C=CC1=CC=CC=C1O PMOWTIHVNWZYFI-UHFFFAOYSA-N 0.000 abstract 1
- 239000012466 permeate Substances 0.000 abstract 1
- 239000001043 yellow dye Substances 0.000 abstract 1
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
- G03C8/10—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors
- G03C8/12—Photosensitive materials characterised by the image-forming section the substances transferred by diffusion consisting of organic compounds of dyes or their precursors characterised by the releasing mechanism
- G03C8/14—Oxidation of the chromogenic substances
- G03C8/16—Oxidation of the chromogenic substances initially diffusible in alkaline environment
-
- 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
- Y10S430/16—Blocked developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
- Color Printing (AREA)
Abstract
1324374 Photographic diffusion transfer process EASTMAN KODAK CO 29 Sept 1970 [29 Sept 1969] 46253/70 Heading G2C A photographic material comprising a support and a light-sensitive silver halide emulsion layer and containing a dye developer (which is a compound which contains a chromophoric system of a dye and a silver halide developing function or a so-called 'shifted' dye developer as disclosed e.g. in Specification 3230085) in the emulsion layer or in a layer adjacent thereto is imagewise exposed and developed by allowing an alkaline aqueous liquid at a pH greater than 9 that causes the dye developer to develop the latent image to permeate the layers of the material and allowing residual unoxidized dye developer to transfer by diffusion and in register to a dye image receiving layer, an additional silver halide developing agent being present in the liquid during development which has the property of forming a lactone which is not a developing agent on lowering the pH of the liquid to not lower than 2. The additional developing agent may form a lactone at a pH between 6 and 9. Development may be stopped by reacting the alkali in the liquid with acid so as to lower the pH of the liquid to a level at which the lactone is formed. The acid may be in the form of a polymeric acid layer beyond the dye image receiving layer relative to the direction of diffusion of the dye developer. The additional developing agent may be a 2- hydroxy-cinnamic acid having an OH or amino substituent at the 3- or 5- position e.g. of the formula:- wherein R 1 and R 2 are each H, halogen or alkyl; R 2 may also be OH; R 3 and R 5 are each H, alkyl, alkoxy, halogen or aryl; R 5 may also be OH; R 4 and R 6 are each H, OH, amino, substituted amino, 1-5C alkyl, 1-5C alkoxy or aryl, at least one of R 4 and R 6 being OH or amino or substituted amino or salts thereof. The additional developing agent may be present in an overcoat layer. The material may comprise red-, green- and blue-sensitive silver halide emulsion layers and contiguous layers containing cyan, magenta and yellow dye developers respectively. The material may comprise a layer of a water-insoluble salt as defined in claim 1 of Specification 1096343 between adjacent dye image-forming units comprising a silver halide emulsion layer and associated dye developer. A rupturable container containing an alkaline aqueous liquid having a pH greater than 9 that causes due developers to develop latent images in the exposed material may be attached to the material. Dye images produced having improved D min values.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US86199769A | 1969-09-29 | 1969-09-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1324374A true GB1324374A (en) | 1973-07-25 |
Family
ID=25337348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB4625370A Expired GB1324374A (en) | 1969-09-29 | 1970-09-29 | Photographic dye developer diffusion transfer process |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3577236A (en) |
| BE (1) | BE756815A (en) |
| CA (1) | CA927171A (en) |
| FR (1) | FR2062758A5 (en) |
| GB (1) | GB1324374A (en) |
Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3951664A (en) * | 1970-06-26 | 1976-04-20 | Agfa-Gevaert, A.G. | Light-sensitive material having developers embedded therein |
| JPS5234376B2 (en) * | 1972-08-17 | 1977-09-02 | ||
| USRE29148E (en) * | 1972-08-17 | 1977-03-08 | Fuji Photo Film Co., Ltd. | Color photographic diffusion transfer process |
| US3816126A (en) * | 1972-09-11 | 1974-06-11 | Polaroid Corp | Novel photographic products and processes |
| US3976486A (en) * | 1973-07-27 | 1976-08-24 | Polaroid Corporation | Diffusion transfer color products and processes with substituted halide silver halide emulsions |
| JPS6015265B2 (en) * | 1980-02-05 | 1985-04-18 | 三菱製紙株式会社 | Photographic elements containing developer precursors |
| US4481277A (en) * | 1983-02-02 | 1984-11-06 | Polaroid Corporation | Photographic products and processes with scavengers for silver ions or silver complexes |
| JPH05503073A (en) * | 1989-09-26 | 1993-05-27 | オクタマー，インコーポレイテッド | 6-Amino-1,2-benzopyrone useful in the treatment of viral diseases |
| US5753674A (en) * | 1991-10-22 | 1998-05-19 | Octamer, Inc. | Adenosine diphosphoribose polymerase binding nitroso aromatic compounds useful as retroviral inactivating agents, anti-retroviral agents, anti-retroviral agents and anti-tumor agents |
| US5571656A (en) * | 1996-02-09 | 1996-11-05 | Polroid Corporation | Multicolor diffusion transfer photographic film elements |
-
1969
- 1969-09-29 US US861997A patent/US3577236A/en not_active Expired - Lifetime
-
1970
- 1970-08-06 CA CA090079A patent/CA927171A/en not_active Expired
- 1970-09-29 BE BE756815D patent/BE756815A/en unknown
- 1970-09-29 GB GB4625370A patent/GB1324374A/en not_active Expired
- 1970-09-29 FR FR7035076A patent/FR2062758A5/fr not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| BE756815A (en) | 1971-03-01 |
| FR2062758A5 (en) | 1971-06-25 |
| CA927171A (en) | 1973-05-29 |
| US3577236A (en) | 1971-05-04 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |