GB1157503A - Photographic Colour Transfer Process - Google Patents
Photographic Colour Transfer ProcessInfo
- Publication number
- GB1157503A GB1157503A GB3874865A GB3874865A GB1157503A GB 1157503 A GB1157503 A GB 1157503A GB 3874865 A GB3874865 A GB 3874865A GB 3874865 A GB3874865 A GB 3874865A GB 1157503 A GB1157503 A GB 1157503A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- coupler
- high enough
- development
- photographic
- 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
- 238000000034 method Methods 0.000 title abstract 3
- 239000003795 chemical substances by application Substances 0.000 abstract 3
- 239000012670 alkaline solution Substances 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 239000000839 emulsion Substances 0.000 abstract 2
- 239000000243 solution Substances 0.000 abstract 2
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 125000003118 aryl group Chemical group 0.000 abstract 1
- 125000005462 imide group Chemical group 0.000 abstract 1
- 230000000452 restraining effect Effects 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
- -1 silver halide Chemical class 0.000 abstract 1
- 239000000126 substance Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C255/00—Carboxylic acid nitriles
-
- 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
-
- 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
- G03C8/24—Photosensitive materials characterised by the image-receiving section
- G03C8/246—Non-macromolecular agents inhibiting image regression or formation of ghost images
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- General Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1, 157, 503. Photographic colour transfer process. ILFORD Ltd. Sept. 8, 1966 [Sept. 10, 1965], No. 38748/65. Heading G2C. [Also in Division C4] A photographic transfer process giving positive colour images comprises image-wise exposing a photographic element having a supported lightsensitive silver halide emulsion layer containing in the emulsion, or in a layer adjacent thereto, an immobile coloured or colourless colour coupler having the general formula given below which becomes diffusible at a certain pH, developing with an alkaline processing solution which contains a colour developing agent and has a pH high enough to solubilize the colour coupler, contacting the element with a receptor element and after at least 1 minute separating the elements to obtain, when a coloured coupler is used, a positive colour image on the receptor element. When the coupler is colourless the colour developing agent is oxidized, simultaneously or subsequently to contacting the elements, to form a positive colour image in the receptor element. The coloured or colourless colour coupler is of the general formula:- where R is a group containing a colour coupling function, X is a trivalent or tetravalent radical of the formula:- wherein the bonds (a) and (b) form part of the imide ring and either or both of bonds (c) and (d) are linked to the colour coupling function R, and R 1 is alkyl of 1-10 carbons or an aryl or aralkyl group optionally substituted by alkyl of 1-10 carbons. Alternatively, in the development step the pH of the alkaline processing solution containing the colour developing agent is high enough for development to take place but not high enough to solubilize the coupler, and the element is then treated, after allowing development to take place, with a second alkaline solution of pH high enough to solubilize the coupler and contacted with the receptor element as before. The second alkaline solution may be applied in the presence of a development restraining substance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3874865A GB1157503A (en) | 1965-09-10 | 1965-09-10 | Photographic Colour Transfer Process |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB3874865A GB1157503A (en) | 1965-09-10 | 1965-09-10 | Photographic Colour Transfer Process |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1157503A true GB1157503A (en) | 1969-07-09 |
Family
ID=10405456
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB3874865A Expired GB1157503A (en) | 1965-09-10 | 1965-09-10 | Photographic Colour Transfer Process |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1157503A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4212880A (en) | 1978-10-23 | 1980-07-15 | Merck & Co., Inc. | Symmetrically substituted pyromellitic diimides as ruminant feed additives |
| US4278598A (en) * | 1974-12-20 | 1981-07-14 | Eastman Kodak Company | Positive-working immobile intramolecular nucleophilic displacement compounds and photographic elements containing same |
| US4289784A (en) | 1978-10-23 | 1981-09-15 | Merck & Co., Inc. | Pyromellitic diimides and method of increasing feed efficiency in ruminant animals |
-
1965
- 1965-09-10 GB GB3874865A patent/GB1157503A/en not_active Expired
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4278598A (en) * | 1974-12-20 | 1981-07-14 | Eastman Kodak Company | Positive-working immobile intramolecular nucleophilic displacement compounds and photographic elements containing same |
| US4212880A (en) | 1978-10-23 | 1980-07-15 | Merck & Co., Inc. | Symmetrically substituted pyromellitic diimides as ruminant feed additives |
| US4289784A (en) | 1978-10-23 | 1981-09-15 | Merck & Co., Inc. | Pyromellitic diimides and method of increasing feed efficiency in ruminant animals |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PLNP | Patent lapsed through nonpayment of renewal fees |