GB1362165A - Radiation-sensitive fine-grained silver halide photographic material - Google Patents
Radiation-sensitive fine-grained silver halide photographic materialInfo
- Publication number
- GB1362165A GB1362165A GB1746473A GB1746473A GB1362165A GB 1362165 A GB1362165 A GB 1362165A GB 1746473 A GB1746473 A GB 1746473A GB 1746473 A GB1746473 A GB 1746473A GB 1362165 A GB1362165 A GB 1362165A
- Authority
- GB
- United Kingdom
- Prior art keywords
- silver halide
- ethyl
- radiation
- sensitive
- halide 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
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
- G03C1/005—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
- G03C1/06—Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
- G03C1/08—Sensitivity-increasing substances
- G03C1/10—Organic substances
- G03C1/12—Methine and polymethine dyes
- G03C1/14—Methine and polymethine dyes with an odd number of CH groups
Landscapes
- Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- General Physics & Mathematics (AREA)
- Silver Salt Photography Or Processing Solution Therefor (AREA)
Abstract
1362165 Photographic fine-grained silver halide material FUJI PHOTO FILM CO Ltd 11 April 1973 [12 April 1972] 17464/73 Heading G2C [Also in Division C4] A radiation-sensitive silver halide photographic emulsion comprises a hydrophilic binder, silver halide crystals whose mean grain size is not greater than 0À2 micron or at least 90% by number of which are not greater than 0À25 micron in grain size and at least one sensitizing base of the formula:- where Z<SP>1</SP> and Z<SP>2</SP> each complete an optionally substituted benzene ring; Y is O, S, Se or NR<SP>1</SP>; Y<SP>1</SP> is S, Se or N-R<SP>3</SP>; R<SP>1</SP> and R<SP>2</SP> are each optionally substituted alkyl; R<SP>3</SP> is H or alkyl; and n is 1 or 2. Z<SP>1</SP> may be substituted by chlorine, CF 3 or methylsulphonyl. Z<SP>2</SP> may be substituted by methyl. R<SP>2</SP> may be ethyl, γ- sulphopropyl, γ- or #- sulphobutyl, γ-carboxypropyl or γ-sulphopropyl triethylamine. R<SP>1</SP> may be ethyl. R<SP>3</SP> may be H or ethyl. The light-sensitive wavelength region of the silver halide is extended, the sensitivity in the intrinsic silver halide absorption wavelength region is enhanced and the sensitivity to electrons is increased by the above sensitizing bases.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3667672A JPS5434330B2 (en) | 1972-04-12 | 1972-04-12 | |
| JP4236572A JPS495023A (en) | 1972-04-27 | 1972-04-27 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1362165A true GB1362165A (en) | 1974-07-30 |
Family
ID=26375758
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB1746473A Expired GB1362165A (en) | 1972-04-12 | 1973-04-11 | Radiation-sensitive fine-grained silver halide photographic material |
Country Status (2)
| Country | Link |
|---|---|
| DE (1) | DE2318586A1 (en) |
| GB (1) | GB1362165A (en) |
-
1973
- 1973-04-11 GB GB1746473A patent/GB1362165A/en not_active Expired
- 1973-04-12 DE DE19732318586 patent/DE2318586A1/en active Pending
Also Published As
| Publication number | Publication date |
|---|---|
| DE2318586A1 (en) | 1973-10-18 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed |