GB1299441A - Process for preparing colour images - Google Patents
Process for preparing colour imagesInfo
- Publication number
- GB1299441A GB1299441A GB5979/69A GB597969A GB1299441A GB 1299441 A GB1299441 A GB 1299441A GB 5979/69 A GB5979/69 A GB 5979/69A GB 597969 A GB597969 A GB 597969A GB 1299441 A GB1299441 A GB 1299441A
- Authority
- GB
- United Kingdom
- Prior art keywords
- colour
- substituted
- emulsion layer
- oxidative coupling
- 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
- 238000004519 manufacturing process Methods 0.000 title 1
- 239000000839 emulsion Substances 0.000 abstract 4
- -1 silver halide Chemical class 0.000 abstract 4
- 238000005691 oxidative coupling reaction Methods 0.000 abstract 3
- 239000003929 acidic solution Substances 0.000 abstract 2
- 125000000217 alkyl group Chemical group 0.000 abstract 2
- 125000003118 aryl group Chemical group 0.000 abstract 2
- 125000001997 phenyl group Chemical group [H]C1=C([H])C([H])=C(*)C([H])=C1[H] 0.000 abstract 2
- 241001479434 Agfa Species 0.000 abstract 1
- 239000002253 acid Substances 0.000 abstract 1
- 229910001413 alkali metal ion Inorganic materials 0.000 abstract 1
- 125000003710 aryl alkyl group Chemical group 0.000 abstract 1
- 150000001875 compounds Chemical class 0.000 abstract 1
- 239000000463 material Substances 0.000 abstract 1
- 238000000034 method Methods 0.000 abstract 1
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 abstract 1
- 238000009896 oxidative bleaching Methods 0.000 abstract 1
- 125000000913 palmityl group Chemical group [H]C([*])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])[H] 0.000 abstract 1
- 125000002924 primary amino group Chemical group [H]N([H])* 0.000 abstract 1
- QMVCLSHKMIGEFN-UHFFFAOYSA-N quinolin-2-ylhydrazine Chemical compound C1=CC=CC2=NC(NN)=CC=C21 QMVCLSHKMIGEFN-UHFFFAOYSA-N 0.000 abstract 1
- 229910052709 silver Inorganic materials 0.000 abstract 1
- 239000004332 silver Substances 0.000 abstract 1
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07D—HETEROCYCLIC COMPOUNDS
- C07D215/00—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems
- C07D215/02—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom
- C07D215/16—Heterocyclic compounds containing quinoline or hydrogenated quinoline ring systems having no bond between the ring nitrogen atom and a non-ring member or having only hydrogen atoms or carbon atoms directly attached to the ring nitrogen atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
- C07D215/38—Nitrogen atoms
- C07D215/42—Nitrogen atoms attached in position 4
-
- 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
- G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
- G03C7/3022—Materials with specific emulsion characteristics, e.g. thickness of the layers, silver content, shape of AgX grains
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1299441 Photographic direct positive colour process AGFA GEVAERT 26 Jan 1970 [4 Feb 1969] 5979/69 Addition to 990628 Heading G2C [Also in Division C2] A photographic direct positive colour image is made by (i) exposing a photographic element containing a light-sensitive silver halide emulsion layer and in the emulsion layer, or in another layer or layers in water-permeable relationship therewith, a colour coupler which on colour development forms a dye which on treatment with a strongly acidic solution is converted into colourless products, and a quinolene hydrazone compound which forms an acid-resistant cyan dye by oxidative coupling with the colour coupler, (ii) developing the element in a colour developer, (iii) treating the element in an oxidative bleaching bath e.g. of potassium ferricyanide, (iv) treating the element in a strongly acidic solution and (v) at a point not before (ii) fixing the element, thus forming colourless products at the exposed areas where colour development initially occurred and a positive colour image in the unexposed areas where oxidative coupling occurred; the quinolene hydrazone compound having the general formula:- where Ar is substituted or unsubstituted aryl e.g. phenyl; R 1 is alkyl, aryl, aralkyl or amino any of which may be substituted e.g. hexadecyl or substituted phenyl; R 2 is alkyl which may be substituted e.g. methyl; and M is H or an alkali metal ion. The quinolone hydrazone and colour coupler are preferably used in the red-sensitive emulsion layer of a direct positive multi-colour material also containing green and blue-sensitive emulsion layers containing oxidative coupling compounds and couplers.
Priority Applications (5)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5979/69A GB1299441A (en) | 1969-02-04 | 1969-02-04 | Process for preparing colour images |
FR7002580A FR2037061A6 (en) | 1969-02-04 | 1970-01-23 | |
US8525A US3622327A (en) | 1969-02-04 | 1970-02-04 | Process for preparing color images |
BE745438D BE745438A (en) | 1969-02-04 | 1970-02-04 | |
DE19702005091 DE2005091A1 (en) | 1969-02-04 | 1970-02-04 | Process for producing direct positive color images |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB5979/69A GB1299441A (en) | 1969-02-04 | 1969-02-04 | Process for preparing colour images |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1299441A true GB1299441A (en) | 1972-12-13 |
Family
ID=9806188
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB5979/69A Expired GB1299441A (en) | 1969-02-04 | 1969-02-04 | Process for preparing colour images |
Country Status (5)
Country | Link |
---|---|
US (1) | US3622327A (en) |
BE (1) | BE745438A (en) |
DE (1) | DE2005091A1 (en) |
FR (1) | FR2037061A6 (en) |
GB (1) | GB1299441A (en) |
Family Cites Families (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
BE620977A (en) * | 1961-08-02 |
-
1969
- 1969-02-04 GB GB5979/69A patent/GB1299441A/en not_active Expired
-
1970
- 1970-01-23 FR FR7002580A patent/FR2037061A6/fr not_active Expired
- 1970-02-04 DE DE19702005091 patent/DE2005091A1/en active Pending
- 1970-02-04 BE BE745438D patent/BE745438A/xx unknown
- 1970-02-04 US US8525A patent/US3622327A/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
DE2005091A1 (en) | 1970-09-17 |
FR2037061A6 (en) | 1970-12-31 |
BE745438A (en) | 1970-08-04 |
US3622327A (en) | 1971-11-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PLNP | Patent lapsed through nonpayment of renewal fees |