GB565929A - Improvements in the production of coloured photographs - Google Patents
Improvements in the production of coloured photographsInfo
- Publication number
- GB565929A GB565929A GB456943A GB456943A GB565929A GB 565929 A GB565929 A GB 565929A GB 456943 A GB456943 A GB 456943A GB 456943 A GB456943 A GB 456943A GB 565929 A GB565929 A GB 565929A
- Authority
- GB
- United Kingdom
- Prior art keywords
- naphthol
- disulphonic acid
- diacetylaminostilbene
- cyanacetylcoumarone
- disodium
- 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
- G03C1/00—Photosensitive materials
- G03C1/76—Photosensitive materials characterised by the base or auxiliary layers
- G03C1/815—Photosensitive materials characterised by the base or auxiliary layers characterised by means for filtering or absorbing ultraviolet light, e.g. optical bleaching
- G03C1/8155—Organic compounds therefor
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Heat Sensitive Colour Forming Recording (AREA)
- Color Printing (AREA)
Abstract
A colour photograph comprises a layer containing a dye image and unused colour coupler employed for forming the dye image and inseparably superimposed on such layer, an outermost non-sensitive layer which transmits not more than 30 per cent, preferably not more than 15 per cent, at and below 350 mm , and not less than 70 per cent at and above 450mm . The light-fastness of the image dye is improved and deterioration due to decomposition of the coupler prevented. The ultra-violet absorbing layer is preferably coated over the colour photograph after the dye image has been formed. The coupler may be contained in fine discrete particles as described in Specifications 524,154, 524,554, 524,555 and 541,589, [all in Group XX]. Ultra-violet absorbing substances specified are 3 : 31-dialkyloxacyanine halides, diacylaminostilbene derivatives (e.g. the disodium and the bis-dioctylamine salts of 4 : 41-diacetylaminostilbene - 2 : 21 - disulphonic acid and disodium 4 : 41-di-(m-aminobenzoyl)-aminostilbene-2 : 21-disulphonate), 1 : 11-dihydroxy - 6 : 61-dinaphthylamine 3 : 31-disulphonic acid, aesculin, p - hydroxybenzaldehyde, 3 - methoxy - 4 - hydroxybenzaldehyde, 2 : 4 - dihydroxybenzaldehyde, quinine, primuline, di-4-(p-aminobenzoyl)-aminodiphenylurea-2 : 21-disulphonic acid and disalicylbenzidide. The ultra-violet absorbing coating (a) prepared from an aqueous solution of gelatin and disodium 4 : 41-diacetylaminostilbene-2 : 21-disulphonate; (b) from a composition obtained by dispersing a sodium hydroxide-ethyl alcohol solution of disalicylbenzidide in gelatin and neutralizing with citric acid; (c) from an ethyl alcohol solution of polyvinyl acetate containing the bis-dioctylamine salt of 4 : 41-diacetylaminostilbene 2 : 2-disulphonic acid; or (d) from an ethyl alcohol solution of ethyl cellulose containing n-butyl propionate and the bis-dioctylamine salt of 4 : 41 - diacetylaminostilbene - 2 : 21-disulphonic acid. In an example, exposed, colour developed, fixed, washed and dried material comprising a support coated with a light-sensitive layer made according to example (2) of Specification 541,589, [Group XX], (except that the emulsion is red-sensitive) and a light-sensitive layer made according to example (4) of Specification 541,589, [Group XX], (except that the emulsion is green - sensitive and the coupler is 2-cyanacetylcoumarone - 5 - sulphon - N - (n-amyltert-amylsulphanilide) is coated with one of the coatings specified. Other couplers specified are 5-diamylnaphthalenesulphonamido-1-naphthol, 5 - [N - (p - toluenesulphonyl)] - (N1 - b - hydroxy - ethyl) - amino - 1 - naphthol, 5-diphenylethersulphonamido-1-naphthol, 5-phenoxyacetamino-1-naphthol, 5 - (N - benzoyl - N - b - hydroxyethyl) - amino - 1 - naphthol, 5 - amyldiphenylethersul - phonamido - 1 - naphthol, 2 : 4 - dichloro - 4 - (p - nitrobenzoyl-b -hydroxyethylamino) - 1 - naphthol, 5-(p-amylphenoxybenzenesulphonamido)-1-naphthol, 5-(N-benzyl-N-n-valerylamino)-1-naphthol, 5-caproylamino - 1 - naphthol, 2-chloro-5-(N - n - valeryl: N - p - isopropylbenzylamino) - 1 - naphthol, 2 : 4 - dichloro - 5 - palmitylamino - 1 - naphthol, 5-b -phenylpropionylamino-1-naphthol, and monochlor-5-(N-g -phenylpropyl-n-p-sec-amylbenzoylamino) -1-naphthol for cyan and 2-cyanacetylcoumarone-5-sulphon-N-methylanilide, 2 - cyanacetylcourmarone - 5 - sulphon - dimethylamide, 2-cyanacetyl-5-benzoylaminocoumarone, 2-cyanacetyl-5-(p-sec-amylbenzoylamino)-coumarone, 2-cyanacetylcoumarone-N-n-amyl: p-sec-amylsulphanilide, 2-cyanacetylcoumarone - 5 - sulphon - N - n - butylanilide, and 2-cyanacetylcoumarone-5-(N-g -phenylpropyl)-p-tert amylsulphonanilide for magenta. Disodium - 4 : 41 - diacetylaminostilbene - 2 : 21-disulphonate is prepared by dissolving 4 : 41-diaminostilbene - 2 : 21 - disulphonic acid in aqueous sodium carbonate solution reacting with acetic anhydride, adding further sodium carbonate solution and recrystallising the precipitate. The bis-dioctylamine salt is prepared by adding to an aqueous solution of the disodium salt a solution of dioctylamine in glacial acetic acid, ethyl alcohol, and water. 1 : 11-Dihydroxy-6 : 61-dinaphthylamine-3 : 31-disulphonic acid is prepared by adding aqueous sodium bisulphite to a caustic soda solution of J-acid. Specifications 493,308, 501,190, 524,320, 524,377, 524,379 and 555,508, [Group XX], also are referred to.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB456943A GB565929A (en) | 1943-03-20 | 1943-03-20 | Improvements in the production of coloured photographs |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB456943A GB565929A (en) | 1943-03-20 | 1943-03-20 | Improvements in the production of coloured photographs |
Publications (1)
Publication Number | Publication Date |
---|---|
GB565929A true GB565929A (en) | 1944-12-05 |
Family
ID=9779617
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB456943A Expired GB565929A (en) | 1943-03-20 | 1943-03-20 | Improvements in the production of coloured photographs |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB565929A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2632701A (en) * | 1949-05-04 | 1953-03-24 | Eastman Kodak Co | Ultraviolet filter on photographic layers |
US2747996A (en) * | 1952-10-31 | 1956-05-29 | Eastman Kodak Co | Photographic element protected against action of ultraviolet radiation |
DE1135756B (en) * | 1959-01-14 | 1962-08-30 | Polaroid Corp | Process for the production of colored transfer images protected against the harmful effects of ultraviolet light |
DE1155673B (en) * | 1959-01-14 | 1963-10-10 | Polaroid Corp | Process for the production of color photographic images with improved resistance to ultraviolet light |
-
1943
- 1943-03-20 GB GB456943A patent/GB565929A/en not_active Expired
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2632701A (en) * | 1949-05-04 | 1953-03-24 | Eastman Kodak Co | Ultraviolet filter on photographic layers |
US2747996A (en) * | 1952-10-31 | 1956-05-29 | Eastman Kodak Co | Photographic element protected against action of ultraviolet radiation |
DE1135756B (en) * | 1959-01-14 | 1962-08-30 | Polaroid Corp | Process for the production of colored transfer images protected against the harmful effects of ultraviolet light |
DE1155673B (en) * | 1959-01-14 | 1963-10-10 | Polaroid Corp | Process for the production of color photographic images with improved resistance to ultraviolet light |
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