GB1205081A - Colour photography - Google Patents
Colour photographyInfo
- Publication number
- GB1205081A GB1205081A GB4303/68A GB430368A GB1205081A GB 1205081 A GB1205081 A GB 1205081A GB 4303/68 A GB4303/68 A GB 4303/68A GB 430368 A GB430368 A GB 430368A GB 1205081 A GB1205081 A GB 1205081A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dyes
- colour photography
- jan
- formazane
- photography
- 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
- 239000000975 dye Substances 0.000 abstract 4
- PAYRUJLWNCNPSJ-UHFFFAOYSA-N N-phenyl amine Natural products NC1=CC=CC=C1 PAYRUJLWNCNPSJ-UHFFFAOYSA-N 0.000 abstract 1
- 125000002490 anilino group Chemical group [H]N(*)C1=C([H])C([H])=C([H])C([H])=C1[H] 0.000 abstract 1
- KURBTRNHGDQKOS-XNWCZRBMSA-N n-[(e)-ethylideneamino]aniline Chemical compound C\C=N\NC1=CC=CC=C1 KURBTRNHGDQKOS-XNWCZRBMSA-N 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
- 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
- G03C7/407—Development processes or agents therefor
- G03C7/413—Developers
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1,205,081. Formazane dyes. ILFORD Ltd. 22 Jan., 1969 [26 Jan., 1968], No. 4303/68. Heading C4P. [Also in Division G2] Formazane dyes for use in colour photography, are of formulµ in which R 4 , R 5 , R 7 and R 8 are each H or -SO 3 H, R 6 is H, -SO 3 H, -CO 2 H, or -OCH 3 , and R 9 is H, -SO 3 H, -CO 2 H or Cl, the dyes containing one -SO 3 H or -CO 2 H group. The dyes are prepared by diazotizing an aniline substituted by R 4-6 or R 7-9 , and reacting the product with acetaldehydephenylhydrazone or its 4-carboxylic acid derivative.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4303/68A GB1205081A (en) | 1968-01-26 | 1968-01-26 | Colour photography |
US793553*A US3645737A (en) | 1968-01-26 | 1969-01-23 | Silver halide photographic processing using formazans |
BE727411D BE727411A (en) | 1968-01-26 | 1969-01-24 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4303/68A GB1205081A (en) | 1968-01-26 | 1968-01-26 | Colour photography |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1205081A true GB1205081A (en) | 1970-09-16 |
Family
ID=9774620
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4303/68A Expired GB1205081A (en) | 1968-01-26 | 1968-01-26 | Colour photography |
Country Status (3)
Country | Link |
---|---|
US (1) | US3645737A (en) |
BE (1) | BE727411A (en) |
GB (1) | GB1205081A (en) |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3168400A (en) * | 1961-05-22 | 1965-02-02 | Eastman Kodak Co | Rapid processing of photographic color materials |
DE1195164B (en) * | 1964-03-20 | 1965-06-16 | Agfa Ag | Process for the preparation of direct positive color photographic images |
US3503741A (en) * | 1966-11-04 | 1970-03-31 | Eastman Kodak Co | Silver-dye-bleach process utilizing formazan dyes |
-
1968
- 1968-01-26 GB GB4303/68A patent/GB1205081A/en not_active Expired
-
1969
- 1969-01-23 US US793553*A patent/US3645737A/en not_active Expired - Lifetime
- 1969-01-24 BE BE727411D patent/BE727411A/xx unknown
Also Published As
Publication number | Publication date |
---|---|
BE727411A (en) | 1969-07-01 |
US3645737A (en) | 1972-02-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
PLNP | Patent lapsed through nonpayment of renewal fees |