US3617293A - Photographic supersensitized silver halide emulsions - Google Patents
Photographic supersensitized silver halide emulsions Download PDFInfo
- Publication number
- US3617293A US3617293A US747879A US3617293DA US3617293A US 3617293 A US3617293 A US 3617293A US 747879 A US747879 A US 747879A US 3617293D A US3617293D A US 3617293DA US 3617293 A US3617293 A US 3617293A
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- US
- United States
- Prior art keywords
- group
- silver halide
- dye
- halide emulsion
- sensitizing
- 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
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Classifications
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- C—CHEMISTRY; METALLURGY
- C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
- C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
- C09B23/00—Methine or polymethine dyes, e.g. cyanine dyes
- C09B23/02—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
- C09B23/06—Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups three >CH- groups, e.g. carbocyanines
-
- 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
- G03C1/28—Sensitivity-increasing substances together with supersensitising substances
- G03C1/29—Sensitivity-increasing substances together with supersensitising substances the supersensitising mixture being solely composed of dyes ; Combination of dyes, even if the supersensitising effect is not explicitly disclosed
Definitions
- the present invention relates to a photographic silver halide emulsion which has been spectrally sensitized, and more particularly, to a photographic silver halide emulsion in which the spectral sensitivity of the red-sensitive region has been increased by using a combination of at least two types of sensitizing dyes.
- sensitizing technique used in the preparation of photographic light sensitive elements involves incorporating a sensitizing dye in a photographic silver halide emulsion, whereby the silver halide emulsion is spectrally sensitized or the light-sensitive wavelength region is altered to encompass a longer wave length.
- the extent of spectral sensitization depends upon the chemical structure of the sensitizing dye used, the properties of the silver halide emulsion, such as the type of silver halide employed in the emulsion, the crystal habits and the crystal system of the silver halide, the silver ion concentration, the pH of the silver halide emulsion, and the like.
- the extent of spectral sensitization is also influenced by additives which are usually incorporated in a silver halide emulsion, such as, stabilizers, antifo'ggants, wetting agents, precipitants, and other various agents for improving the physical properties of the emulsion layer.
- additives which are usually incorporated in a silver halide emulsion, such as, stabilizers, antifo'ggants, wetting agents, precipitants, and other various agents for improving the physical properties of the emulsion layer.
- additives which are usually incorporated in a silver halide emulsion, such as, stabilizers, antifo'ggants, wetting agents, precipitants, and other various agents for improving the physical properties of the emulsion layer.
- the spectral sensitivity of a silver halide emulsion sensitized by a sensitizing dye will be reduced.
- sensitizing dyes In photographic light-sensitive elements, at times only one sensitizing dye is employed for sensitizing a desired spectral wavelength region, but usually a combination of two or more sensitizing dyes will be employed for this purpose. However, the sensitivity obtained by a combination of sensitizing dyes is usually lower than that obtained by using separate sensitizing dyes. This phenomenon is generally called antisensitization.
- the spectral sensitivity obtained when using a combination of two or more sensitizing dyes is markedly higher than that obtained by using the sensitizers separately.
- This situation is called super-sensitization.
- super-sensitization It is known, in super-sensitization," that the chemical structures of the sensitizing dyes must be rigorously selected in view of each other, as a slight variation of the structures will remarkably influence "super-sensitization by the dyes.
- the effect of any one combination of sensitizing dyes cannot be easily anticipated from their mere chemical structures.
- the basic problem in the area spectral sensitization has been finding combinations of two or more sensitizing dyes which will show the desired super-sensitizing qualities.
- a multilayer color photographic light sensitive element used in a subtractive color process usually has a blue-sensitive emulsion layer, a greensensitive emulsion layer, and a red sensitive emulsion layer.
- the spectral sensitivity distribution of each light-sensitive emulsion layer is an important factor in determining the color reproducing properties of the color photographic element.
- the spectral light-sensitive wave length regions of the blue-sensitive emulsion layers, green-sensitive emulsion layers, and red-sensitive emulsion layers must be adequately separated from each other. Since panchromatic sensitizing dyes are employed in a redsensitive emulsion, it is necessary that the spectral sensitivity of the green-sensitive region be as low as possible, while the spectral sensitivity of the red-sensitive region be increased as much as possible.
- the maximum sensitizing wavelength be no longer than 670 m
- the sensitizing dyes incorporated into the redsensitive emulsion layer must not diffuse into adjacent emulsion layers, and thereby sensitize the adjacent layers.
- the spectral sensitivity of each individual light-sensitive emulsion layer must be very high, and the sensitivity must not be lowered as time passes.
- the spectral sensitivity of each light-sensitive emulsion must not be reduced by the presence of the coupler when the emulsion is handled or stored in the liquid state.
- a photographic silver halide emulsion in which the spectral sensitivity of the red-sensitive region has been increased may be produced by using a combination of at least two types of sensitizing dyes. Specifically, at least one carbocyanine dyes represented by general fon'nula (I) and at least one carbocyanine dye represented by general formula (II) are utilized in the combination.
- a carbocyanine dye represented by general formula (I) may be represented as follows:
- a carbocyanine dye represented by general formula (II) may be illustrated as follows:
- Z, and L each represents an atomic group necessary for forming a member selected from the group consisting of a benzothiazole ring and a benzoselenazole ring;
- R and R each represents a member selected from the group consisting of an alkyl group and a substituted alkyl group;
- R represents a lower alkyl group;
- X represents an anion; and
- m is 0 or I; said dye forming an intramolecular salt when m is 0.
- Another object of this invention is to provide a photographic silver halide emulsion capable of preventing panchromatic sensitizing dyes used in the red-sensitive emulsion layer from diffusing into adjacent emulsion layers, thereby imparting red sensitivity thereto.
- FIGS. 1 and 2 of the accompanying drawings illustrate the spectrosensitivity curves obtained for various dye samples.
- sensitizing dye 1'' represents an atomic group necessary for the formation of a naphthothiazole ring or a naphthoselenazole ring;
- Z represents anatomic group necessary for the formation of a naphthothiazole ring, a naphthoselenazole ring, a benzothiazole ring, or a benzoselenazole ring;
- R and R each represents an alkyl group or a substituted alkyl group;
- A is defined to be a phenyl group Ora:
- substituted phenyl group is: a carboxyl group, a sulfonic acidgroup, a sulfoalkoxyl group, a halogen atom, an alkyl group, an alkoxyl group, an oxy group, and the like.
- R, R R and R are: a methyl group, an ethyl group, a propyl group, a 2-hydroxyethyl group, a 2-methoxyethyl group, a carboxymethyl group, a Z-carboxyethyl group, a 3- carboxypropyl group, a 4carboxybutyl group, a 2-sulfoethyl group, a 3-sulfopropyl group, a 4-sulfobutyl group, a 3-sulfoisobutyl group, a Z-carboethoxyethyl group, an aralkyl group, an allyl group, i.e., a vinyl methyl group, and the like.
- the benzothiazole ring or the benzoselenazole ring (among the rings represented by Z, or Z may have substituents such as: a halogen atom, a phenyl group, a sulfophenyl group, a sulfoalkoxy group, a carboalkoxy group, a sulfonic acid group or an alkyl group at the 5- and/or the 6-position thereof.
- Z and Z represent an atomic group necessary in the formation of a benzothiazole ring or a benzoselenazole ring, and these rings may be substituted by an alkyl group, a phenyl group or a halogen atom.
- Illustrative of the anions represented by X or X are chlorine ions, bromine ions, iodine ions, perchloric acid ions, p-toluene sulfonic acid ions, ethyl sulfate ions, and the like.
- sensitizing dye 1 acts as a super-sensitizer to sensitizing dye 2.
- S ensitizingdye i '55 a substituted or unsubstituted phenyl group at the meso-position thereof, and further, at least one of the two heterocyclic rings of the cyanine dye is a naphthothiazole ring or a naphthoselenazole ring.
- This unique chemical structure is believed to be most important to the synergistic effect obtained.
- sensitizing dye l When sensitizing dye l is used alone, the red sensitivity of the silver halide emulsion obtained is lower than that obtained by using sensitizing dye 2 alone. However, when sensitizing .dye l is incorporated in a silver halide emulsion together with sensitizing dye 2, an extremely high red sensitivity, much greater than that obtained when using sensitizing dye 2 alone is obtained due to a supersensitization. This is the most important feature of the present invention.
- sensitizing dye 2 is used together with sensitizing dye l,
- the maximum sensitizing wave length of sensitizing dye 2 does not substantially shift to a longer wavelength.
- Sensitizing dye l of the present invention has many merits.
- a smaller amount of dye 1 than of the aforesaid mesoalkylsubstituted naphthothia-carbocyanine dye can provide a higher red sensitivity, and further, the amounts thereof may be varied in a considerably wider range. In addition, the maximum sensitizing wavelength is not shifted to an unacceptable longer wavelength.
- Sensitizing dye 1 of this invention has a comparatively flat spectral sensitivity distribution over the whole red-sensitive region, and the green sensitivity thereofis comparatively low.
- sensitizing dye l of this invention when incorporated into a red-sensitive emulsion layer, will scarcely diffuse into adjacent emulsion layers and impart red sensitivity thereto. Hence the use of this dye improves effectively the formation of color mixing to such an extent that practically no color mixing will occur.
- sensitizing dye l When sensitizing dye l is incorporated into a photographic silver halide emulsion together with the other sensitizing dye according to the present invention, the harmful effects of any coupler present in the silver halide emulsion on spectral sensitivity are reduced.
- carbocyanine sensitizing dye having a phenyl group or a substituted phenyl group at the mesa-position thereof will only give low sensitivity, due to steric hindrance.
- sensitizing dye 1, having a phenyl group or a substituted phenyl group at the meso-position thereof is incorporated, as a super-sensitizer, in a photographic silver halide emulsion, together with the other sensitizing dye, as in this invention, an extremely high red-sensitivity is unexpectedly obtained and there is no shift of the maximum sensitizing wavelength to a longer wavelength.
- Sensitizing dye 2 is a carbocyanine dye which tends to provide a J-band and which has a spectral sensitivity mainly at the red-sensitive region, that is, in the region of from 590 mp. to 680 mp.
- the heterocyclic ring thereof may be substituted with an alkyl group, a phenyl group, a halogen atom and the like, to provide a proper spectral sensitivity distribution.
- the sensitizing dyes used in the present invention can be dissolved in a water-soluble organic solvent such as methanol, ethanol, acetone, pyridine and the like, and the sensitizing dyes of this invention may be incorporated in a silver halide emulsion as an organic solvent solution of two or more dyes, or as an organic solvent solution of each separate dye.
- a water-soluble organic solvent such as methanol, ethanol, acetone, pyridine and the like
- the sensitizing dyes of this invention may be incorporated in a silver halide emulsion as an organic solvent solution of two or more dyes, or as an organic solvent solution of each separate dye.
- the order of addition of the sensitizing dyes, the ratio of the amounts of sensitizing dyes, the proportions of the sensitizing dyes to silver halide emulsion used, and the like may be varied.
- silver chlorobromide emulsions there are silver chlorobromide emulsions, silver bromide emulsions, silver iodobromide emulsions, silver chloride emulsions, silver chloroiodobromide emulsions and the like.
- I additives which are usually employed, such as, stabilizers, an-
- tifoggants agents for improving the physical properties of emulsion films, plasticizers, couplers and wetting agents.
- the silver halide emulsion of this invention may be applied to proper supports, such as, cellulose derivative films, plastic films, or baryta papers.
- sensitizing dyes used in the present invention may be prepared by known methods such as those described in U.S. Pat. Nos. 2,226,156 and 2,503,776.
- Preparation 1 sensitizing dye l-A msor-nm
- a mixture of 3 g. of anhydro-4,5-benzo 2-methyl-3-(3-sulfopropyl) benzothiazolium hydroxide and 3.5 g. of phthalic anhydride was reacted in 10 ml. of pyridine, under refluxing, by heating for 10 minutes.
- the crystal formed was recovered by filtration, washed with methanol with heating, and then recrystallized from a mixed solvent of methanol and chloroform to provide 09 g. of dye l-A, having a melting point of 223 C.
- sensitizing dye I-B sensitizing dye I-B A mixture of 3 g. of 4,5- benzo-3-(3-sulfopropyl)-2-thiobenzoyl-methylenebenzothiazoline and 2 g. of methyl ptoluenesulfonate was reacted for 90 minutes at 1 10 C. The reaction product was mixed with 3.1 g. of anhydro-4,5-benzo- 2-methyl-3-(3-sulfopropyl)benzothiazolium hydroxide, 150 ml. of ethanol, 50 ml. of methanol, and 3 ml.
- the crystals thus formed were filtered and recrystallized from a mixed solvent of methanol and chloroform to provide 1.6 g. of dye l-J, having a melting point of 292 C.
- the wavelength of the spectral absorption maximum of the dye, in methanol, was 586 mu.
- Example 1 A gelatino silver halide emulsion g.), prepared in a conventional manner, was melted in a beaker at 40C. Then, a predetermined amount of a methanol solution of sensitizing dye 1, having a known concentration, and a known amount of a methanol solution of sensitizing dye 2, having a known concentration, were added to the emulsion and stirred.
- the system was then allowed to stand for 10 minutes in a thermostat-equipped bath maintained at 37 C.
- the system was then stirred, and the emulsion was uniformly applied to a glass plate at a thickness of 7.0 ml. per cabinet size (area), and set and dried to provide a light-sensitive emulsion layer.
- a light having a color temperature of 5400 K. was obtained from a light source having a color temperature of 2666 K.
- a Fuji No. 7 Filter made by the Fuji Photo-Film Co. which transmitted only light having a wavelength longer than about 600 my, a red light was obtained, and the light-sensitive emulsion layer prepared as above was exposed to the red light using an optical wedge.
- the exposed emulsion layer was developed for 10 minutes at 20 C. in a developer having the following composition:
- the developed light-sensitive plate was further processed in a stopping bath and a fixing bath, and then washed with water.
- the density of the thus processed sample was measured using a S-Type Densitometer (made by the Fuji Photo-Film Co.) in order to determine red sensitivity.
- the optical density, which was utilized to determine the sensitivity, was calculated by using the fog density plus O.l0.
- the red sensitivities of the various samples are shown in table 1 below.
- curve S represents the spectral sensitivity curve obtained by using 2 ml. of the comparative sensitizing dye A at TABLE 1
- Maximum Sensitizing dye used molar Sensitizing dye used: molar Relative sensitizing concentration cc. (amount/m1.) concentration cc. (amount/ red wave No. of dye ml.) of dye sensitivity Fog 1ength(m 2 85 0. 13 640 4 85 0. 15 640 6 100 O. 16 640 4 1 141. 0. 15 640 1 (IA)(8 10- mol). 4 (1-B)(2 10' 2 141 0.15 640 4 4 152 O. 12 640 l 50 0. 12 680 2 50 0. 13 680 4 42 0.
- the light-sensitive emulsion layer thus formed was subjected to spectral exposure by means of a reflectiontype grating spectrograph and developed as described above.
- the spectral sensitivity of the thus prepared sample was measured to provide a spectral sensitivity curve.
- FIGS. 1 and 2 of the accompanying drawings the spectral sensitivity curves obtained are shown for various samples.
- Curve P in FIG. 1 represents the spectral sensitivity curve obtained by using 4 ml. of sensitizing dye 11-3, at a molar concentration of 4X10 moles per 100 g. of emulsion;
- curve Q represents the spectral sensitivity curve obtained by using 2 m1. of sensitizing dye l-A, at a molar concentration of 4X10 moles per 100 g. of emulsion;
- curve R represents the spectral sensitivity curve obtained using 2 ml. of sensitizing dye l-A and 4 ml. of sensitizing dye "-3, in the proportions described in the first section of this paragraph.
- Sensitizing dye A may be represented by the following for- I SOa IEP-N Wz Oa a molar concentration 8r4xi0" moles of dye per 100 g. of the emulsion.
- Curve T represents the results obtained when using 4 ml. of sensitizing dye 11-8, and 2 ml. of sensitizing dye A, in
- sensitizing dyes of this invention were added to the emulsion as in example 1, and the mixture was stirred and allowed to stand for minutes at 37 C. Thereafter, 20 ml. of a 5 percent aqueous alkali solution of a cyan coupler having the fol- 6O lowing formula:
- the red-sensitive color photographic film thus prepared was subjected to a wedge exposure, or spectral exposure as in example l, and developed for 10 minutes at 20 C. in a color developer containing, as a color developing agent, a N,N-
- X represents an anion
- n l5 or 1' said dye orming an intramolecular salt when n is 0
- the light-sensitive film thus developed was subjected to primary fixing, R5 bleaching, secondary fixing, and washing, to provide a negab c 3 c tive cyan image.
- the red density of the cyan image was measured to provide a relative red sensitivity, the results being i f shown in table 2.
- Z represents an atomic group necessary for forming a member selected from the
- A represents a member selected from the group consisting of a phenyl group and a substituted phenyl group wherein said substituent is selected from the class consisting of a carboxyl-, a sulfonic acid-, a sulfoalkoxyl-, a
- Z and Z each represents an atomic group necessary for forming a member selected from the group consisting of a benzothiazole ring and a benzoselenazole ring; R; and R, have the same meaning as defined for R and R above, at least one of said R,, R R 3 and R, being selected from the class consisting of a sulfo radical-containing alkyl group and a carboxy radical-containing alkyl group; R represents a lower alkyl group; X represents an anion; and m is 0 or l; said dye forming an intramolecular salt when m is 0.
- R, R R and R are selected from the group consisting of a methyl group, an ethyl group, a propyl group, a 2- hydroxyethyl group, a Z-methoxyethyl group, a carboxymethyl group, a 2-carboxyethyl group, a 3-carboxypropyl group, a 4-carboxybutyl group, a 2-sulfoethyl group, a 3-sulfopropyl group, a 4-sulfobutyl group, a 3-sulfoisobutyl group, a Z-carboethoxyethyl group, an aralkyl group and a vinylmethyl group.
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- Chemical & Material Sciences (AREA)
- Physics & Mathematics (AREA)
- Organic Chemistry (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)
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4805667 | 1967-07-26 |
Publications (1)
Publication Number | Publication Date |
---|---|
US3617293A true US3617293A (en) | 1971-11-02 |
Family
ID=12792667
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US747879A Expired - Lifetime US3617293A (en) | 1967-07-26 | 1968-07-26 | Photographic supersensitized silver halide emulsions |
Country Status (5)
Country | Link |
---|---|
US (1) | US3617293A (de) |
BE (1) | BE717962A (de) |
DE (1) | DE1772956C3 (de) |
FR (1) | FR1573694A (de) |
GB (1) | GB1216203A (de) |
Cited By (23)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3734739A (en) * | 1971-07-29 | 1973-05-22 | Polaroid Corp | Silver halide emulsions sensitized with cyanine dyes containing a quaternary group |
US3920458A (en) * | 1970-09-28 | 1975-11-18 | Fuji Photo Film Co Ltd | Photographic sensitive material suitable for the silver-dyestuff bleaching method |
US3955979A (en) * | 1970-10-16 | 1976-05-11 | Fuji Photo Film Co., Ltd. | Flash exposure of supersensitized silver halide photographic light-sensitive material |
EP0143424A2 (de) | 1983-11-25 | 1985-06-05 | Fuji Photo Film Co., Ltd. | Wärmeentwickelbares lichtempfindliches Material |
EP0147854A2 (de) | 1983-12-29 | 1985-07-10 | Fuji Photo Film Co., Ltd. | Lichtempfindliches Silberhalogenidmaterial |
US4622290A (en) * | 1984-11-09 | 1986-11-11 | Mitsubishi Paper Mills, Ltd. | Silver halide photographic emulsion |
EP0209118A2 (de) | 1985-07-17 | 1987-01-21 | Konica Corporation | Photographisches Silberhalogenidmaterial |
EP0218266A2 (de) | 1984-05-02 | 1987-04-15 | Fuji Photo Film Co., Ltd. | Farbphotographisches lichtempfindliches Silberhalogenidmaterial |
EP0239363A2 (de) | 1986-03-25 | 1987-09-30 | Konica Corporation | Lichtempfindliches photographisches Silberhalogenidmaterial, das für schnelle Entwicklung verwendbar ist |
US4710631A (en) * | 1984-08-28 | 1987-12-01 | Fuji Photo Film Co., Ltd. | Temperature compensation for a semiconductor light source used for exposure of light sensitive material |
EP0256537A2 (de) | 1986-08-15 | 1988-02-24 | Fuji Photo Film Co., Ltd. | Farbkopie und Verfahren zu deren Herstellung |
EP0562476A1 (de) | 1992-03-19 | 1993-09-29 | Fuji Photo Film Co., Ltd. | Photographische Silberhalogenidemulsion und photographisches lichtempfindliches Material |
EP0563708A1 (de) | 1992-03-19 | 1993-10-06 | Fuji Photo Film Co., Ltd. | Photographische Silberhalogenidemulsion und lichtempfindliches Material, das diese verwendet |
WO1996013755A1 (en) | 1994-10-26 | 1996-05-09 | Eastman Kodak Company | Photographic emulsions of enhanced sensitivity |
US5582957A (en) * | 1995-03-28 | 1996-12-10 | Eastman Kodak Company | Resuspension optimization for photographic nanosuspensions |
EP0766132A1 (de) * | 1995-09-29 | 1997-04-02 | Eastman Kodak Company | Kombinationen rot sensibilisierender Farbstoffe für Emulsionen mit hohem Chloridgehalt |
EP0777153A1 (de) | 1995-11-30 | 1997-06-04 | Fuji Photo Film Co., Ltd. | Farbphotographisches, lichtempfindliches Silberhalogenidmaterial |
US5922525A (en) * | 1996-04-08 | 1999-07-13 | Eastman Kodak Company | Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity |
US5925509A (en) * | 1995-09-29 | 1999-07-20 | Eastman Kodak Company | Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity |
EP1624337A2 (de) | 2004-08-02 | 2006-02-08 | Fuji Photo Film Co., Ltd. | Holographisches empfindliches Silberhalogenidmaterial und System zur holographischen Bildaufnahme mit Hilfe desselben |
EP1691237A2 (de) | 2005-02-15 | 2006-08-16 | Fuji Photo Film Co., Ltd. | Holographisches Aufzeichnungsmaterial und holographisches Aufzeichnungsverfahren |
EP1750173A1 (de) | 2005-08-04 | 2007-02-07 | Fuji Photo Film Co., Ltd. | Lichtempfindliches Silberhalogenidmaterial und dieses enthaltender verpackter Gegenstand |
EP1914594A2 (de) | 2004-01-30 | 2008-04-23 | FUJIFILM Corporation | Farbphotographisches lichtempfindliches Silberhalogenidmaterial und Bilderzeugungsverfahren |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US5962211A (en) * | 1997-10-03 | 1999-10-05 | Eastman Kodak Company | Photographic image improvement in spectral sensitizing dye and filter dye having similar spectral absorption characteristics |
GB2330663B (en) * | 1997-10-03 | 2002-08-21 | Eastman Kodak Co | Photographic image improvement in spectral sensitizing dye and filter dye having similar spectral absorption characteristics |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2533427A (en) * | 1949-07-13 | 1950-12-12 | Eastman Kodak Co | Supersensitization of meso-aryl carbocyanine dyes |
US3432303A (en) * | 1965-05-24 | 1969-03-11 | Eastman Kodak Co | Silver halide emulsions containing dye combinations for supersensitization |
-
1968
- 1968-07-11 BE BE717962D patent/BE717962A/xx not_active IP Right Cessation
- 1968-07-18 GB GB34374/68A patent/GB1216203A/en not_active Expired
- 1968-07-19 FR FR1573694D patent/FR1573694A/fr not_active Expired
- 1968-07-26 US US747879A patent/US3617293A/en not_active Expired - Lifetime
- 1968-07-26 DE DE1772956A patent/DE1772956C3/de not_active Expired
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2533427A (en) * | 1949-07-13 | 1950-12-12 | Eastman Kodak Co | Supersensitization of meso-aryl carbocyanine dyes |
US3432303A (en) * | 1965-05-24 | 1969-03-11 | Eastman Kodak Co | Silver halide emulsions containing dye combinations for supersensitization |
Cited By (24)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3920458A (en) * | 1970-09-28 | 1975-11-18 | Fuji Photo Film Co Ltd | Photographic sensitive material suitable for the silver-dyestuff bleaching method |
US3955979A (en) * | 1970-10-16 | 1976-05-11 | Fuji Photo Film Co., Ltd. | Flash exposure of supersensitized silver halide photographic light-sensitive material |
US3734739A (en) * | 1971-07-29 | 1973-05-22 | Polaroid Corp | Silver halide emulsions sensitized with cyanine dyes containing a quaternary group |
EP0143424A2 (de) | 1983-11-25 | 1985-06-05 | Fuji Photo Film Co., Ltd. | Wärmeentwickelbares lichtempfindliches Material |
EP0147854A2 (de) | 1983-12-29 | 1985-07-10 | Fuji Photo Film Co., Ltd. | Lichtempfindliches Silberhalogenidmaterial |
EP0218266A2 (de) | 1984-05-02 | 1987-04-15 | Fuji Photo Film Co., Ltd. | Farbphotographisches lichtempfindliches Silberhalogenidmaterial |
US4710631A (en) * | 1984-08-28 | 1987-12-01 | Fuji Photo Film Co., Ltd. | Temperature compensation for a semiconductor light source used for exposure of light sensitive material |
US4622290A (en) * | 1984-11-09 | 1986-11-11 | Mitsubishi Paper Mills, Ltd. | Silver halide photographic emulsion |
EP0209118A2 (de) | 1985-07-17 | 1987-01-21 | Konica Corporation | Photographisches Silberhalogenidmaterial |
EP0239363A2 (de) | 1986-03-25 | 1987-09-30 | Konica Corporation | Lichtempfindliches photographisches Silberhalogenidmaterial, das für schnelle Entwicklung verwendbar ist |
EP0256537A2 (de) | 1986-08-15 | 1988-02-24 | Fuji Photo Film Co., Ltd. | Farbkopie und Verfahren zu deren Herstellung |
EP0563708A1 (de) | 1992-03-19 | 1993-10-06 | Fuji Photo Film Co., Ltd. | Photographische Silberhalogenidemulsion und lichtempfindliches Material, das diese verwendet |
EP0562476A1 (de) | 1992-03-19 | 1993-09-29 | Fuji Photo Film Co., Ltd. | Photographische Silberhalogenidemulsion und photographisches lichtempfindliches Material |
WO1996013755A1 (en) | 1994-10-26 | 1996-05-09 | Eastman Kodak Company | Photographic emulsions of enhanced sensitivity |
US5582957A (en) * | 1995-03-28 | 1996-12-10 | Eastman Kodak Company | Resuspension optimization for photographic nanosuspensions |
EP0766132A1 (de) * | 1995-09-29 | 1997-04-02 | Eastman Kodak Company | Kombinationen rot sensibilisierender Farbstoffe für Emulsionen mit hohem Chloridgehalt |
US5925509A (en) * | 1995-09-29 | 1999-07-20 | Eastman Kodak Company | Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity |
US6120982A (en) * | 1995-09-29 | 2000-09-19 | Eastman Kodak Company | Red sensitizing dye combinations for high chloride emulsions |
EP0777153A1 (de) | 1995-11-30 | 1997-06-04 | Fuji Photo Film Co., Ltd. | Farbphotographisches, lichtempfindliches Silberhalogenidmaterial |
US5922525A (en) * | 1996-04-08 | 1999-07-13 | Eastman Kodak Company | Photographic material having a red sensitized silver halide emulsion layer with improved heat sensitivity |
EP1914594A2 (de) | 2004-01-30 | 2008-04-23 | FUJIFILM Corporation | Farbphotographisches lichtempfindliches Silberhalogenidmaterial und Bilderzeugungsverfahren |
EP1624337A2 (de) | 2004-08-02 | 2006-02-08 | Fuji Photo Film Co., Ltd. | Holographisches empfindliches Silberhalogenidmaterial und System zur holographischen Bildaufnahme mit Hilfe desselben |
EP1691237A2 (de) | 2005-02-15 | 2006-08-16 | Fuji Photo Film Co., Ltd. | Holographisches Aufzeichnungsmaterial und holographisches Aufzeichnungsverfahren |
EP1750173A1 (de) | 2005-08-04 | 2007-02-07 | Fuji Photo Film Co., Ltd. | Lichtempfindliches Silberhalogenidmaterial und dieses enthaltender verpackter Gegenstand |
Also Published As
Publication number | Publication date |
---|---|
FR1573694A (de) | 1969-07-04 |
GB1216203A (en) | 1970-12-16 |
DE1772956B2 (de) | 1978-04-27 |
DE1772956C3 (de) | 1979-01-18 |
BE717962A (de) | 1968-12-16 |
DE1772956A1 (de) | 1970-10-01 |
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