US3694217A - Silver halide photographic emulsion - Google Patents

Silver halide photographic emulsion Download PDF

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Publication number
US3694217A
US3694217A US865545A US3694217DA US3694217A US 3694217 A US3694217 A US 3694217A US 865545 A US865545 A US 865545A US 3694217D A US3694217D A US 3694217DA US 3694217 A US3694217 A US 3694217A
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US
United States
Prior art keywords
group
silver halide
agbr
sensitizing
emulsion
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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
Application number
US865545A
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English (en)
Inventor
Yoshikata Sakaguchi
Masakado Sakai
Masanaga Ohki
Yashuharu Nakamura
Motohiko Tsubota
Akira Sato
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Fujifilm Holdings Corp
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Fuji Photo Film Co Ltd
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    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03CPHOTOSENSITIVE MATERIALS FOR PHOTOGRAPHIC PURPOSES; PHOTOGRAPHIC PROCESSES, e.g. CINE, X-RAY, COLOUR, STEREO-PHOTOGRAPHIC PROCESSES; AUXILIARY PROCESSES IN PHOTOGRAPHY
    • G03C1/00Photosensitive materials
    • G03C1/005Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein
    • G03C1/06Silver halide emulsions; Preparation thereof; Physical treatment thereof; Incorporation of additives therein with non-macromolecular additives
    • G03C1/08Sensitivity-increasing substances
    • G03C1/10Organic substances
    • G03C1/12Methine and polymethine dyes
    • CCHEMISTRY; METALLURGY
    • C09DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09BORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B23/00Methine or polymethine dyes, e.g. cyanine dyes
    • C09B23/02Methine or polymethine dyes, e.g. cyanine dyes the polymethine chain containing an odd number of >CH- or >C[alkyl]- groups
    • C09B23/06Methine 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
    • YGENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10STECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/134Brightener containing

Definitions

  • This invention relates to a spectrally sensitized silver halide photographic emulsion and, more particularly, to a silver halide photographic emulsion having a maximum spectral sensitization within the range of from about 620 my. to 645 mg and a high sensitivity to red light.
  • the sensitizing effect in a. longer wave length region of a sensitizing dye having its maximum spectral sensitization in a longer wave length region is greatly affected by the other sensitizing dye having its spectral sensitivity in a shorter wave length region and, in general, the sensitization efiect (attributable to the aggregation of sensitizing dyes on particles of silver halide) in a longer wave length region is lowered.
  • the principal object of the present invention is to provide a silver halide photographic emulsion containing a novel sensitizing dye which will aiford a high spectral sensitivity in a spectral sensitization wave length region of about 620 to 645 mp. without any decrease in either the total sensitivity and in the red sensitivity, even when used in combination with an ortho sensitizer, and further, which will not retain any stain in the sensitive material after development.
  • FIGS. l-4 show spectral sensitization spectra obtained by employing a dye of the present invention alone, in combination with known dyes, and by employing a conventional dye alone and in combination with other known dyes, respectively.
  • the special feature of the chemical structure of the sensitizing coloring matter used in the present invention consists of the substituents R and R. It has been found that the spectral sensitizing property of, especially, mesomethylthiacarbocyanines, mesomethylselenathiacarbocyanines and mesomethylselenacarbocyanines is affected to a great extent by the substituents R and R.
  • mesomethylcarbocyanine dyes are used in combination with a known ortho sensitizing dye, such as thia-2'-cyanine or 2,2'-cyanine, its sensitizing property in a red region corresponding to the maximum spectral sensitization (approximately 620 to 645 m due to the aggregation of the mesomethylcarbocyanine dye on the silver halide particles is adversely affected, and, consequently, the red sensitivity of the emulsion is lowered to a great extent, so that the use of such mesomethylcarbocyanines is disadvantageous for the object of the present invention.
  • a known ortho sensitizing dye such as thia-2'-cyanine or 2,2'-cyanine
  • the sensitizing dye of the present invention is able to spectrally sensitize silver halide photographic emulsions.
  • emulsion used in the present invention may be an emulsion which contains a mixed silver halide, such as silver iodobromide or silver chlorobromoiodide.
  • the photoemulsion which is sensitized in accordance with the present invention may be prepared by incorporating one or more sensitizing dyes in a photographic emulsion in an ordinary manner.
  • the dye is usually added to the emulsion while in solution in a suitable solvent, such as methanol or ethanol.
  • the amount of the sensitizing dye to be incorporated in the emulsion may vary in a wide range of from 5 to 200 mg. per kg. of emulsion, depending on the required effect.
  • the photographic emulsion used in accordance with the present invention may be, in addition, super-sensitized and hyper-sensitized according to conventional methods.
  • the photographic emulsion in accordance with the present invention may be applied in the usual manner to a suitable support, such as, e.g., sheet glass, a film of cellulose derivative, a film of synthetic resin or baryta paper.
  • a suitable support such as, e.g., sheet glass, a film of cellulose derivative, a film of synthetic resin or baryta paper.
  • Fuji #7 filter made by Fuji Photo Film Co., Ltd., transmitting light having a wave length longer than 580 mg
  • the developing solution used was of the formulation as indicated in Table 2.
  • Table 3 is shown the degrees of color sensitization and maxima of sensitization obtained by separate addition of the sensitizing dyes as indicated in Table 1.
  • Table 4 is shown the degrees of spectral sensitization and maxima of sensitization obtained by the separate addition of the sensitizing dyes indicated above as sensitizing dyes for comparison.
  • Table 5 is shown the degrees of spectral sensitization and maxima of sensitization obtained by various combinations of sensitizing dyes selected from those listed in Table l and those as indicated above for comparison with a known green-sensitive sensitizing dye.
  • the red sensitivities were indicated by terms of relative sensitivity, assuming that the red sensitivity of sensitizing coloring matter A was 100.
  • sensitizing dye F 0. 015 AgBr/I 625 80
  • the red sensitivities were indicated in terms of relative sensitivity, assuming that the red sensitivity of an emulsion having incorporated therein, by itself, sensitizing dye F was 100.
  • FIG. 1 indicates a spectral sensitization spectrum obtained by using great extent when used in combination with green-sensitization spectrum obtained by using sensitizing dye 3 in combination with known green-sensitive coloring matter H and I;
  • FIG. 3 indicates aspectral sensitization spectrum obtained by using sensitizing dye E alone;
  • FIG. 4 indicates a spectral sensitization spectrum obtained by using sensitizing dye F in combination with the known green-sensitive sensitizing dyes H and I.
  • sensitizing dye E was used for compan'sion purposes, its maximum sensitization in the red region (J-band) falls off to a great extent when used in combination witht green-sensitive sensitizing dye H and this causes a remarkable depression of the red sensitivity, while, when employing sensitizing dye 3 of the present invention, the phenomenon that will cause such a depression of red sensitivity does not occur even if it is used in combination with the green-sensitive sensitizing dyes H and I.
  • the known green-sensitive sensitizing dyes used in combination with the sensitizing dye of the present in- The red sensitivities were indicated in terms of relative 75 vention are those having the following structures.
  • Z and Z are individually selected from the group consisting of a sulfur and a selenium atom
  • R is selected from the group consisting of an ethyl group, an n-propyl group, an n-butyl group and an allyl group
  • R' is selected from the group consisting of an 'y-sulfopropyl group, a 'ysulfobutyl group, a a-sulfobutyl group, a B-carboxybutyl group and a w-carboxypentyl group
  • X represents an anion
  • n is or 1, n being 0 when the dye is an intramolecular salt.
  • the silver halide photographic emulsion as in claim group consisting of p 1 Br CzHs l? CH N N Br- (5 2H5 2 5 8.

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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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
  • Thermal Transfer Or Thermal Recording In General (AREA)
  • Indole Compounds (AREA)
US865545A 1968-09-12 1969-09-12 Silver halide photographic emulsion Expired - Lifetime US3694217A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6570468 1968-09-12

Publications (1)

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US3694217A true US3694217A (en) 1972-09-26

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US865545A Expired - Lifetime US3694217A (en) 1968-09-12 1969-09-12 Silver halide photographic emulsion

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US (1) US3694217A (enrdf_load_stackoverflow)
DE (1) DE1946307C2 (enrdf_load_stackoverflow)
FR (1) FR2019427B1 (enrdf_load_stackoverflow)
GB (1) GB1280016A (enrdf_load_stackoverflow)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446962A1 (de) * 1983-12-22 1985-07-04 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Photographisches silberhalogenid-druckpapier und verwendung des papiers im schwarz-weiss-entwicklungsverfahren
EP0202616A2 (en) 1985-05-16 1986-11-26 Konica Corporation Method for color-developing a silver halide photographic light-sensitive material
US4690883A (en) * 1984-12-14 1987-09-01 Fuji Photo Film Co., Ltd. Image forming process
JPH01302351A (ja) * 1988-05-31 1989-12-06 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料の処理方法
US5354646A (en) * 1986-03-26 1994-10-11 Konishiroku Photo Industry Co., Ltd. Method capable of rapidly processing a silver halide color photographic light-sensitive material
US5456999A (en) * 1991-11-29 1995-10-10 Agfa-Gevaert, N.V. Infrared sensitive silver halide photographic 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

Family Cites Families (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB498290A (en) * 1937-03-25 1938-12-28 Eastman Kodak Co Improvements in sensitised photographic emulsions
DE917330C (de) * 1940-10-22 1955-01-10 Agfa Ag Fuer Photofabrikation Verfahren zur Herstellung von am mittelstaendigen Kohlenstoffatom der Methinkette substituierten, symmetrischen und unsymmetrischen Carbocyaninen
BE484580A (enrdf_load_stackoverflow) * 1947-08-29
DE929080C (de) * 1951-10-23 1955-08-16 Agfa Ag Fuer Photofabrikation Verfahren zur Herstellung von Betain-Cyanin-Farbstoffen und von Betain-Styryl-Farbstoffen
BE548605A (enrdf_load_stackoverflow) * 1956-03-07
GB841119A (en) * 1957-09-02 1960-07-13 Ici Ltd New photographic sensitisers
US2917516A (en) * 1957-11-25 1959-12-15 Eastman Kodak Co Method of making thiazole or oxazole quaternary salts
DE1113873B (de) * 1959-01-17 1961-09-14 Wolfen Filmfab Veb Verfahren zur Sensibilisierung von Halogensilberemulsionen
GB1027053A (en) * 1963-08-26 1966-04-20 Ilford Ltd Photographic light-sensitive materials

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3446962A1 (de) * 1983-12-22 1985-07-04 Fuji Photo Film Co., Ltd., Minami-Ashigara, Kanagawa Photographisches silberhalogenid-druckpapier und verwendung des papiers im schwarz-weiss-entwicklungsverfahren
US4657846A (en) * 1983-12-22 1987-04-14 Fuji Photo Film Co., Ltd. Silver halide photographic printing paper
US4690883A (en) * 1984-12-14 1987-09-01 Fuji Photo Film Co., Ltd. Image forming process
EP0202616A2 (en) 1985-05-16 1986-11-26 Konica Corporation Method for color-developing a silver halide photographic light-sensitive material
US5354646A (en) * 1986-03-26 1994-10-11 Konishiroku Photo Industry Co., Ltd. Method capable of rapidly processing a silver halide color photographic light-sensitive material
JPH01302351A (ja) * 1988-05-31 1989-12-06 Fuji Photo Film Co Ltd ハロゲン化銀カラー写真感光材料の処理方法
US5456999A (en) * 1991-11-29 1995-10-10 Agfa-Gevaert, N.V. Infrared sensitive silver halide photographic 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

Also Published As

Publication number Publication date
GB1280016A (en) 1972-07-05
FR2019427B1 (enrdf_load_stackoverflow) 1973-05-11
FR2019427A1 (enrdf_load_stackoverflow) 1970-07-03
DE1946307C2 (de) 1983-10-20
DE1946307A1 (de) 1970-05-14

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