US3736145A - Light-sensitive photographic material having exceptionally high resolving power - Google Patents
Light-sensitive photographic material having exceptionally high resolving power Download PDFInfo
- Publication number
- US3736145A US3736145A US00069174A US3736145DA US3736145A US 3736145 A US3736145 A US 3736145A US 00069174 A US00069174 A US 00069174A US 3736145D A US3736145D A US 3736145DA US 3736145 A US3736145 A US 3736145A
- Authority
- US
- United States
- Prior art keywords
- light
- photographic material
- emulsion
- resolving power
- sensitive 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 - Lifetime
Links
- 239000000463 material Substances 0.000 title description 16
- 230000004304 visual acuity Effects 0.000 title description 10
- 239000000839 emulsion Substances 0.000 abstract description 22
- DZVCFNFOPIZQKX-LTHRDKTGSA-M merocyanine Chemical compound [Na+].O=C1N(CCCC)C(=O)N(CCCC)C(=O)C1=C\C=C\C=C/1N(CCCS([O-])(=O)=O)C2=CC=CC=C2O\1 DZVCFNFOPIZQKX-LTHRDKTGSA-M 0.000 abstract description 16
- 239000002245 particle Substances 0.000 abstract description 12
- ZUNKMNLKJXRCDM-UHFFFAOYSA-N silver bromoiodide Chemical compound [Ag].IBr ZUNKMNLKJXRCDM-UHFFFAOYSA-N 0.000 abstract description 6
- 230000005855 radiation Effects 0.000 abstract description 2
- 239000000975 dye Substances 0.000 description 12
- 230000001235 sensitizing effect Effects 0.000 description 7
- -1 silver halides Chemical class 0.000 description 7
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 6
- 125000000217 alkyl group Chemical group 0.000 description 6
- 206010070834 Sensitisation Diseases 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 5
- 230000008313 sensitization Effects 0.000 description 5
- 125000003118 aryl group Chemical group 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 125000003545 alkoxy group Chemical group 0.000 description 3
- 230000005070 ripening Effects 0.000 description 3
- 230000003595 spectral effect Effects 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- YBYIRNPNPLQARY-UHFFFAOYSA-N 1H-indene Chemical compound C1=CC=C2CC=CC2=C1 YBYIRNPNPLQARY-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 2
- QIGBRXMKCJKVMJ-UHFFFAOYSA-N Hydroquinone Chemical compound OC1=CC=C(O)C=C1 QIGBRXMKCJKVMJ-UHFFFAOYSA-N 0.000 description 2
- 125000005242 carbamoyl alkyl group Chemical group 0.000 description 2
- 239000000298 carbocyanine Substances 0.000 description 2
- 125000004181 carboxyalkyl group Chemical group 0.000 description 2
- 125000004966 cyanoalkyl group Chemical group 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 125000005843 halogen group Chemical group 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 125000002768 hydroxyalkyl group Chemical group 0.000 description 2
- 238000010348 incorporation Methods 0.000 description 2
- IOLCXVTUBQKXJR-UHFFFAOYSA-M potassium bromide Chemical compound [K+].[Br-] IOLCXVTUBQKXJR-UHFFFAOYSA-M 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
- GEHJYWRUCIMESM-UHFFFAOYSA-L sodium sulfite Chemical compound [Na+].[Na+].[O-]S([O-])=O GEHJYWRUCIMESM-UHFFFAOYSA-L 0.000 description 2
- 239000003381 stabilizer Substances 0.000 description 2
- 125000003107 substituted aryl group Chemical group 0.000 description 2
- 125000003903 2-propenyl group Chemical group [H]C([*])([H])C([H])=C([H])[H] 0.000 description 1
- 229940090898 Desensitizer Drugs 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 125000004183 alkoxy alkyl group Chemical group 0.000 description 1
- MQRJBSHKWOFOGF-UHFFFAOYSA-L disodium;carbonate;hydrate Chemical compound O.[Na+].[Na+].[O-]C([O-])=O MQRJBSHKWOFOGF-UHFFFAOYSA-L 0.000 description 1
- 239000005357 flat glass Substances 0.000 description 1
- 238000009472 formulation Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 125000002887 hydroxy group Chemical group [H]O* 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000005555 metalworking Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 239000003960 organic solvent Substances 0.000 description 1
- 238000001259 photo etching Methods 0.000 description 1
- 229920006267 polyester film Polymers 0.000 description 1
- 239000004848 polyfunctional curative Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 235000010265 sodium sulphite Nutrition 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- ANRHNWWPFJCPAZ-UHFFFAOYSA-M thionine Chemical compound [Cl-].C1=CC(N)=CC2=[S+]C3=CC(N)=CC=C3N=C21 ANRHNWWPFJCPAZ-UHFFFAOYSA-M 0.000 description 1
- ILJSQTXMGCGYMG-UHFFFAOYSA-N triacetic acid Chemical compound CC(=O)CC(=O)CC(O)=O ILJSQTXMGCGYMG-UHFFFAOYSA-N 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 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
- 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
- G03C1/22—Methine and polymethine dyes with an even number of CH groups
Definitions
- This invention relates to a light-sensitive-photographic material having exceptionally high resolving power which is prepared by adding a specific sensitizing dye in an ultramicrofine emulsion so as to effect spectral sensitization at intended Wavelength region.
- the present photographic material can be increased in gamma and prevented from irradiation without being injured in photographic speed.
- Emulsions capable of providing the above-mentioned characteristics are required to satisfy such conditions that silver halides contained therein should be in the form of ultramicrofine particles (at most 0.1; in diameter), should be free from light irradiation or halation, and should be high in gamma of characteristic curves.
- an emulsion which has been orthomatically spectral-sensitized by adding a dimethine merocyanine dye of the general formula shown later to an ultramicrofine silver iodobromide emulsion of less than 0.1/L in particle diameter, is increased in gamma without being lowered in speed, and can give an image which is free from blur due to irradiation and which is extremely high in acutance.
- Such elfects of sensitizing dye are displayed only when the dimethine merocyanine dye employed in the present invention is used in combination with an ultra-microfine 10 silver iodobromide emulsion of less than 0.1, in particle diameter, and cannot be displayed if any one of said components has been substituted by other material.
- sensitizing dye is used in place of the dimethine merocyanine dye employed in the present in- 1 vention, or if particles of more than 0.1g in particle diameter are used in place of the particles of less than 0.1/L
- dimethine merocyanine dye employed in the present invention is represented by the general formula,
- X and X are individually a hydrogen or halogen atom
- the sensitizing dye used in the present invention may 'be added to a photographic emulsion after dissolving the dye in a water-miscible organic solvent such as methanol, ethanol or the like.
- the sensitizing dye may be added to the emulsion at any stage during the preparation of the emulsion. Generally, however, the sensitizing dye is preferably added immediately before completion of chemical ripening (second ripening), and the amount thereof is desirably 30 to 3,000 mg. per mol of silver halide in the emulsion.
- the emulsion may have been subjected to known chemical sensitization such as sulfur sensitization or the like, and may have been incorporated with known stabilizer, surface active agent and hardener. Further the dimethine merocyanine dye according to the present invention may be incorporated with other cyanine or merocyanine dye. Ordinarily, the emulsion is coated on such a support as a smooth glass plate, but may be coated on a transparent of opaque film such as triacetate or polyester film.
- control photographic materials were prepared in the same manner as above, except that carbocyanine dyes of the structures shown below were used as sensitizing dyes.
- the D-19 developer has the following formulation:
- OHmGOOH [JHQCIECHS and acutance (degree of sharpness) thereof.
- the green light speed is a value calculated 'by assuming as 100 the value of the control dye (II). 4.
- a light-sensitive photographic material according to Amount Resolving added (mg. Green power per mol of li ht (number of AgX) speed Gamma Aeutance lines per mm.)
- a light-sensitive photographic material having exceptionally high resolving power characterized by having a layer of an ultramicrofine silver iodobromide emulsion of less than 0.1g in particle diameter which has been incorporated with a dimethine merocyanine dye of the general formula,
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)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP44094229A JPS4933782B1 (enrdf_load_stackoverflow) | 1969-11-25 | 1969-11-25 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US3736145A true US3736145A (en) | 1973-05-29 |
Family
ID=14104461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US00069174A Expired - Lifetime US3736145A (en) | 1969-11-25 | 1970-11-13 | Light-sensitive photographic material having exceptionally high resolving power |
Country Status (4)
| Country | Link |
|---|---|
| US (1) | US3736145A (enrdf_load_stackoverflow) |
| JP (1) | JPS4933782B1 (enrdf_load_stackoverflow) |
| DE (1) | DE2057034A1 (enrdf_load_stackoverflow) |
| GB (1) | GB1319794A (enrdf_load_stackoverflow) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4021251A (en) * | 1974-04-17 | 1977-05-03 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsions |
| US4057430A (en) * | 1973-04-25 | 1977-11-08 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
| US4160669A (en) * | 1975-03-17 | 1979-07-10 | Teiji Habu | Argon laser flash exposure of spectrally sensitized silver halide photographic material |
| US4582779A (en) * | 1983-06-29 | 1986-04-15 | Fuji Photo Film Co., Ltd. | Internal latent image-type direct positive silver halide emulsions and photographic materials |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5696483U (enrdf_load_stackoverflow) * | 1979-12-24 | 1981-07-30 |
-
1969
- 1969-11-25 JP JP44094229A patent/JPS4933782B1/ja active Pending
-
1970
- 1970-11-13 US US00069174A patent/US3736145A/en not_active Expired - Lifetime
- 1970-11-20 DE DE19702057034 patent/DE2057034A1/de not_active Withdrawn
- 1970-11-23 GB GB5556070A patent/GB1319794A/en not_active Expired
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4057430A (en) * | 1973-04-25 | 1977-11-08 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
| US4154616A (en) * | 1973-04-25 | 1979-05-15 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsion |
| US4021251A (en) * | 1974-04-17 | 1977-05-03 | Fuji Photo Film Co., Ltd. | Silver halide photographic emulsions |
| US4160669A (en) * | 1975-03-17 | 1979-07-10 | Teiji Habu | Argon laser flash exposure of spectrally sensitized silver halide photographic material |
| US4582779A (en) * | 1983-06-29 | 1986-04-15 | Fuji Photo Film Co., Ltd. | Internal latent image-type direct positive silver halide emulsions and photographic materials |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS4933782B1 (enrdf_load_stackoverflow) | 1974-09-10 |
| GB1319794A (en) | 1973-06-06 |
| DE2057034A1 (de) | 1971-06-03 |
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