GB2002916A - Antihalation dye combination - Google Patents
Antihalation dye combinationInfo
- Publication number
- GB2002916A GB2002916A GB7832878A GB7832878A GB2002916A GB 2002916 A GB2002916 A GB 2002916A GB 7832878 A GB7832878 A GB 7832878A GB 7832878 A GB7832878 A GB 7832878A GB 2002916 A GB2002916 A GB 2002916A
- Authority
- GB
- United Kingdom
- Prior art keywords
- dye
- dye combination
- formulae
- antihalation dye
- formula
- 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.)
- Withdrawn
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
- G03C1/825—Photosensitive materials characterised by the base or auxiliary layers characterised by antireflection means or visible-light filtering means, e.g. antihalation
- G03C1/83—Organic dyestuffs therefor
- G03C1/832—Methine or polymethine dyes
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
Abstract
An antihalation layer is described which comprises a mixture of a pyrazolone dye of formula I and a bis- pyridone dye of formula II in a gelatin binder. The formulae are:- <IMAGE> where the meanings of the pendant groups in the formulae are defined in the text of the specification. The advantage of the use of this dye combination is that it absorbs light over most of the region of the visible spectrum and that the substantivity of one of the dyes is greatly enhanced in the presence of the other.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB7832878A GB2002916A (en) | 1977-08-12 | 1978-08-10 | Antihalation dye combination |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3388477 | 1977-08-12 | ||
GB7832878A GB2002916A (en) | 1977-08-12 | 1978-08-10 | Antihalation dye combination |
Publications (1)
Publication Number | Publication Date |
---|---|
GB2002916A true GB2002916A (en) | 1979-02-28 |
Family
ID=26262067
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB7832878A Withdrawn GB2002916A (en) | 1977-08-12 | 1978-08-10 | Antihalation dye combination |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB2002916A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2433774A1 (en) * | 1978-08-16 | 1980-03-14 | Wolfen Filmfab Veb | PHOTOGRAPHIC MATERIAL BASED ON SILVER HALIDE EMULSIONS COMPRISING FILTERED DYES |
EP0019298A1 (en) * | 1979-05-22 | 1980-11-26 | Ciba-Geigy Ag | Photographic silver halide material having a filter layer or an antihalation layer |
EP0019299A1 (en) * | 1979-05-22 | 1980-11-26 | Ciba-Geigy Ag | Photographic silver halide material having a color filter layer or an antihalation dye layer |
-
1978
- 1978-08-10 GB GB7832878A patent/GB2002916A/en not_active Withdrawn
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2433774A1 (en) * | 1978-08-16 | 1980-03-14 | Wolfen Filmfab Veb | PHOTOGRAPHIC MATERIAL BASED ON SILVER HALIDE EMULSIONS COMPRISING FILTERED DYES |
EP0019298A1 (en) * | 1979-05-22 | 1980-11-26 | Ciba-Geigy Ag | Photographic silver halide material having a filter layer or an antihalation layer |
EP0019299A1 (en) * | 1979-05-22 | 1980-11-26 | Ciba-Geigy Ag | Photographic silver halide material having a color filter layer or an antihalation dye layer |
US4294916A (en) | 1979-05-22 | 1981-10-13 | Ciba-Geigy Ag | Photographic silver halide material containing a dye filter or a dye anti-halation layer |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
WAP | Application withdrawn, taken to be withdrawn or refused ** after publication under section 16(1) |