US3718475A - Silver halide supersensitized photographic emulsion - Google Patents

Silver halide supersensitized photographic emulsion Download PDF

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Publication number
US3718475A
US3718475A US00049981A US3718475DA US3718475A US 3718475 A US3718475 A US 3718475A US 00049981 A US00049981 A US 00049981A US 3718475D A US3718475D A US 3718475DA US 3718475 A US3718475 A US 3718475A
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group
silver halide
halide emulsion
emulsion
sensitizing dyes
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US00049981A
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English (en)
Inventor
K Shiba
A 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
    • G03C1/28Sensitivity-increasing substances together with supersensitising substances
    • G03C1/29Sensitivity-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

  • ABSTRACT A silver halide photographic emulsion is super-sensitized in the green wave length region by adding thereto at least one sensitizing dye of the following formula I and at least one sensitizing dye of the following formula ll; and, optionally a compound of the following formula III:
  • This invention relates to a super-sensitized silver halide photographic emulsion and more particularly it relates to -a supersensitized silver halide photographic emulsion for increasing particularly the spectral senl emulsion containing couplers for making color photographic light-sensitive materials.
  • a spectral sensitizing method is one of the techniques employed in the manufacture of silver halide photographic emulsions, and that the sensitizing method is an indispensible technique for the production of color photographic light-sensitive materials.
  • the spectral sensitivity obtained by the method is influenced not only by the chemical structure of the sensitizing dye to be used and the properties of the silver halide emulsion to be used, such as the composition of the halogen and the crystal system ofthe silver halide contained in the emulsion, the manner of chemical ripening, the silver ion concentration and the hydrogen ion concentration of the emulsion, but also by the various kinds of additives added to the silver halide emulsion.
  • the spectral sensitivity is reduced.
  • a certain kind of sensitizing dye is used together with a dye or a colorless aromatic compound having a specific chemical structure according to the chemical structure and the properties of the sensitizing dye, a higher spectral sensitivity is obtained than when using each of the sensitizing dyes alone. This is known as a super-sensitizing action.
  • silver halide emulsions used for producing color photographic light-sensitive materials contain a large amount of couplers, and when a coupler is incorporated in a silver halide photographic emulsion containing a sensitizing dye, the spectral sensitivity becomes lower than the spectral sensitivity obtained by using the sensitizing dye alone.
  • the presence of the coupler reduces the super-sensitizing action.
  • the spectral sensitivity distribution in the green region is one of the most important factors for the color reproduction of color photographic light-sensitive materials and for the quality of the image obtained.
  • a primary object of the present invention is to provide a silver halide photographic emulsion having both a high spectral sensitivity in a wave length region of 500-530 my. and less of a contamination by the dyes after development.
  • Another object of the present invention is to provide a silver halide photographic emulsion used for producing a color photographic light-sensitive material having a high green sensitivity in the presence of a coupler.
  • R and R each represent an alkyl group, an aryl group or a substituted alkyl group
  • R and R each represent an alkyl group, an aryl group or a substituted alkyl group (including a substituted alkyl group having a sulfo group); at least one of said R and R being a substituted alkyl group having a sulfo group
  • Z and Z (which may be same or different) eachrepresents a non-metallic atomic group necessary to complete a heterocyclic nucleus of the benzimidazole series
  • X,- represents an acid anion group usually employed in cyanine dyes
  • p is an integer of 1 or 2, p being 1 when the cyanine dye of formula I forms an intermolecular salt
  • Z represents a non-metallic atomic group necessary to complete a heterocyclic nucleus of the 2- quinoline series
  • Z represents a non-metallic atomic group necessary to complete a benzoxazole nucleus, a naphthoxazole nucleus, a benzthiazole nucleus, a benzselenazole nucleus, a naphthothiazole nucleus, or a naphthoselenazole nucleus, each being unsubstituted or substituted by an alkyl group, a phenyl group, a halogen atom, an alkoxyl group or an alkoxyl group having a sulfo group; R and R, (which may be same or different) each represents an alkyl group or a substituted alkyl group (including a substituted alkyl group having a sulfo group); at least one of said R and R being a
  • the substituted alkyl group of R in the above-men- is, for example, a sulfoalkyl group present invention that a particularly better result is obneutralized by a cation, such as alkali metal ions, ortained by incorporating a compound represented by ganic ammonium ions, a pyridinium ion, a benzylthiouthe following formula III in the above-mentioned silver m ronium ion, and the like, usually employed in cyanine halide photographic emulsion: dyes, a cyanoalkyl group and an allyl group.
  • a cation such as alkali metal ions
  • X and X in the formulas I and II there maybe il- FORMULA In lustrated, e.g., a halogen, perchlorate, thiocyanate, ptoluene sulfonate, benzene sulfonate, methyl sulfate and ethyl sulfate ions.
  • the sensitizing dye represented by formula II has at 7 least one sulfo group in the heterocyclic nucleus conwherein R represents an alkyl group or a substituted taimng R5 or '.T Spectral sensltlzanon 0balkyl group; Z represents a non-metallic atomic group gamed by 1 .sensmzmg dye rePresemed.
  • Z represents a phenyl group sulfo group but.when the sensmzmg y represented by the formula I 15 used together therewith, the spectral or a substituted phenyl group, such as a phenyl group sensitization is increased substituted by alkyl groups, alkoxy groups, and the like.
  • a p y EMBODIMENTS group a halogen atom, an alkoxyl group, or an alkoxyl group substituted by at least a sulfo group; in other
  • the substituent is so selected that the maximum groups of R1 to R6 f methyl ethyl "'P sensitivity obtained by using at least one sensitizing dye Pf and lso'butyl groups; and as the of formula II and at least one compound of formula I in smuted alkyl groups of 1 to e there y be combination does not shift to a longer wavelength side "med: y group, aralkyl group, a l y' than that of the sensitizing dye of formula II.
  • the compound represented by formula III shows a YP Py p a B' y y group, a Y- super-sensitizing action to the sensitizing dye sulfatopropyl group, a s'sulfatobutyl group, a represented by formula I and to the sensitizing dye acetylsulfamyl g p and a B y y Y 8 "P- represented by formula II, and by using the compound
  • t e e may be illust ated a fi-sulf p opyl tion of the other two sensitizing dyes, the green seng p, fiy g p.
  • a 5-Sulf0buty1 g p. 3 40 sitivity is further increased and at the same time the p p y) y g p, a p p xsensitivity in the wave length region of 500-530 MA, y) yl y g p, d a Z-hydroxy-l-sulfopropyl which is present at a shorter wave length side of the S P' green region, is further increased.
  • benzimidazole series nucleus completed by The compounds which may be used in the present in- Z,, Z, or 2,, there may be illustrated: benzimidazole vention will be further illustrated by reference to the and benzimidazole containing, as a component of the following illustrative formulas, which are merely illusskeletal-structure thereof, a benzene ring substituted trative, and not limiting, in nature.
  • a halogen atom an N- unsubstituted or alkyl substituted sulfamyl or carbamyl (IA) 0 H C H group
  • an N-disubstituted sulfamyl group such as a Cl 2 5 5 morpholino sulfonyl group, an alkyl sulfonyl group, a trifluoromethyl group
  • sensitizing dyes and the compounds used in this invention which were not described above, may also be easily synthesized by referring to the specifications of the above patents.
  • the compounds used in this invention are incorporated in a sliver halide emulsion as solutions in water or a water-soluble organic solvent such as methanol, ethanol, and pyridine.
  • the sensitizing dyes represented by formulal and formula 11, respectively, may be added to a silver halide emulsion as a mixture of the solutions thereof or as separate solutions. The amounts of these dyes are greatly influenced by the nature of the silver halide emulsion to be used.
  • the total amount of the above-mentioned sensitizing dyes (1 and 11) and compound 111 are preferably from 1 X mol to 1 X 10 mol, per mol of silver halide.
  • the weight ratio of the amount of the sensitizing dye represented by formula II to the amount of the sensitizing dye represented by formula I is preferably from 10:1 to 1:2, but this ratio is varied by the amount of the compound represented by formula III to be added.
  • the silver halide emulsion which may be used in this invention, there may be illustrated: a silver iodobromide emulsion, a silver bromide emulsion, a silver chlorobromide emulsion, etc.
  • the silver halide emulsion used in this invention is mainly a gelatino silver halide emulsion but the emulsion may contain, besides gelatin, polyvinyl alcohol, an alginic acid polymer, polyvinyl imidazole, polyvinyl pyrrolidone, or copolymers thereof, or may be an emulsion thereof.
  • the silver halide emulsion of this invention is applied to a suitable support according to the desired use, such as a paper, a glass plate, a cellulose triacetate film, a polyethylene terephthalate film, other plastic films than above, a baryta-coated paper, a resin-coated paper, or a synthetic paper.
  • a suitable support such as a paper, a glass plate, a cellulose triacetate film, a polyethylene terephthalate film, other plastic films than above, a baryta-coated paper, a resin-coated paper, or a synthetic paper.
  • EXAMPLE 1 50 g of l-pheny1-3-[3-(2,4-di-tertiaryamylphenoxyactamido)-benzamido]S-pyrazolone was dissolved in 100 ml of dibutyl phthalate by heating and the resultant solution was added to 1 liter of a 10 percent aqueous gelatin solution. Then, 50 ml of a 5 percent aqueous solution of sodium alkylbenzene sulfonate was added thereto and they were dispersed by emulsification by means of a high speed rotary mixer (the product is called the dispersion of the magenta coupler).
  • the dispersion of the magenta coupler as prepared above was added to the emulsion with stirring and after adding further suitable amounts of a hardening agent and an ampholite surface active agent as a wetting agent to the mixture with stirring, the resultant mixture was applied to a cellulose triacetate film in a thickness of 7 microns to obtain a sample of a green-sensitive light-sensitive material.
  • the sample was cut into strips and subjected to an optical wedge exposure through Yellow Filter No. K-12 made by Fuji Photo Film Co. by using a sensitometer of 5400K in color temperature of the light source.
  • the strip thus exposed was developed for 12 minutes at C in a color developer having the following composition:
  • compositions of the bleaching solution and the fixing solution used in the above processing were as follows:
  • EXAMPLE 2 As in Example 1, 1 kg of a silver iodobromide emulsion (containing 0.30 mol of silver and 6.0 mol% of iodine) was melted in a beaker at 40C and the amounts of the sensitizing dyes l and II and the compound of formula III shown in Table 2 were added to the emulsion with stirring. -7 ml of the silver halide emulsion thus obtained was applied to a glass plate of cabinet size followed by drying to obtain a sample.
  • the sample was cut into strips and the strips were subjected to an optical wedge exposure by yellow light as in Example 1 and then developed in a developer having the following composition for 10 minutes at C.
  • R 1 l substituent being alkyl, halogen, trifluoroalkyl, cyano, alkyl-sulfonyl, alkylsulfomyl or alkylcarbamyl; and at least one sensitizing dye represented by the following second formula:
  • R is alkyl or sulfoalkyl
  • R is alkyl, sulfoalkyl, sulfoalkoxyalkoxy or sulfoalkylcarbamylalkyl
  • Z represents a non-metallic atomic group necessary to complete a Z-quinoline substituted or unsubstituted heterocyclic nucleus, the substituent being alkyl or halogen
  • Z represents a non-metallic group necessary to complete a substituted or unsubstituted heterocyclic nucleus selected from the group consisting of benzoxazole, naphthoxazole, benzthiazole, benzselenazole, naphthothiazole or naphthoselenazole, the substituent being halogen or sulfoalkoxy; with the proviso that when Z contains a sulfoalkoxy group, R and R is alkyl.
  • R represents an alkyl group or a substituted alkyl group wherein the substituent is a sulfo group neutralized by a cation, a cyano group or a vinyl group
  • Z represents an atomic group necessary to complete a heterocyclic nucleus of the benzimidazole series
  • Z represents a phenyl group or a substituted phenyl group wherein the substituent is alkyl or alkoxy.
  • heterocyclic nucleus of the 2-quinoline series is a 2-quinoline nucleus or a 2-quinoline nucleus 5 containing, as a component of the skeletal-structure thereof, a benzene ring substituted by at least one of 11915011 the groups consisting of an alkyl group and a halogen (31W atom.
  • a silver halide emulsion according to claim 11 ⁇ V *CHZC CzHrNHC OCaHaSOa' and a compound of the following formula:

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  • 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)
  • Non-Silver Salt Photosensitive Materials And Non-Silver Salt Photography (AREA)
US00049981A 1969-06-25 1970-06-25 Silver halide supersensitized photographic emulsion Expired - Lifetime US3718475A (en)

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JP44050117A JPS4838406B1 (enrdf_load_stackoverflow) 1969-06-25 1969-06-25

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US (1) US3718475A (enrdf_load_stackoverflow)
JP (1) JPS4838406B1 (enrdf_load_stackoverflow)
BE (1) BE752386A (enrdf_load_stackoverflow)
DE (1) DE2031491A1 (enrdf_load_stackoverflow)
FR (1) FR2052878A5 (enrdf_load_stackoverflow)
GB (1) GB1293862A (enrdf_load_stackoverflow)

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765899A (en) * 1969-03-14 1973-10-16 Konishiroku Photo Ind Light-sensitive super-sensitized silver halide photographic emulsion
US3849147A (en) * 1969-06-25 1974-11-19 Fuji Photo Film Co Ltd Silver halide supersensitized photographic emulsion
US3856532A (en) * 1972-04-26 1974-12-24 Ilford Ltd Photographic silver halide emulsion containing a supersensitising combination
US3933510A (en) * 1972-09-04 1976-01-20 Fuji Photo Film Co., Ltd. Spectrally sensitized silver halide photographic emulsion
USH899H (en) 1986-03-25 1991-03-05 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide photographic material feasible for high speed
US5091298A (en) * 1990-07-19 1992-02-25 Eastman Kodak Company Sensitizing dyes for photographic materials
US5389505A (en) * 1992-09-18 1995-02-14 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5478720A (en) * 1993-04-01 1995-12-26 Konica Corporation Silver halide photographic emulsion and silver halide photographic light-sensitive material
US5523203A (en) * 1993-03-03 1996-06-04 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5610005A (en) * 1993-11-25 1997-03-11 Fuji Photo Film Co., Ltd. Silver halide color photographic light-sensitive material
US6479226B2 (en) * 2000-04-27 2002-11-12 Konica Corporation Silver halide color photographic light sensitive material

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59188641A (ja) 1983-04-11 1984-10-26 Fuji Photo Film Co Ltd ハロゲン化銀写真乳剤
JPS61245151A (ja) 1985-04-23 1986-10-31 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS61251852A (ja) 1985-04-30 1986-11-08 Konishiroku Photo Ind Co Ltd ハロゲン化銀カラ−写真感光材料の処理方法
JPS61250643A (ja) 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
US4725529A (en) 1985-04-30 1988-02-16 Konishiroku Photo Industry Co., Ltd. Developing inhibitor arrangment in light-sensitive silver halide color photographic materials
JPS61250645A (ja) 1985-04-30 1986-11-07 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
AU590563B2 (en) 1985-05-16 1989-11-09 Konishiroku Photo Industry Co., Ltd. Method for color-developing a silver halide color photographic light-sensitive material
DE3682128D1 (de) 1985-07-17 1991-11-28 Konishiroku Photo Ind Photographisches silberhalogenidmaterial.
AU591540B2 (en) 1985-12-28 1989-12-07 Konishiroku Photo Industry Co., Ltd. Method of processing light-sensitive silver halide color photographic material
EP0476327B1 (en) 1990-08-20 1999-11-17 Fuji Photo Film Co., Ltd. Data-retainable photographic film product and process for producing color print

Citations (4)

* Cited by examiner, † Cited by third party
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
US2541400A (en) * 1944-11-11 1951-02-13 Eastman Kodak Co N, n'-alkylenecyanine dyes
US2701198A (en) * 1954-02-16 1955-02-01 Eastman Kodak Co Supersensitized photographic emulsions containing simple cyanine dyes
US3038800A (en) * 1957-12-19 1962-06-12 Eastman Kodak Co Photopolymerization of olefinicallyunsaturated monomers by silver halides

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2541400A (en) * 1944-11-11 1951-02-13 Eastman Kodak Co N, n'-alkylenecyanine dyes
US2533427A (en) * 1949-07-13 1950-12-12 Eastman Kodak Co Supersensitization of meso-aryl carbocyanine dyes
US2701198A (en) * 1954-02-16 1955-02-01 Eastman Kodak Co Supersensitized photographic emulsions containing simple cyanine dyes
US3038800A (en) * 1957-12-19 1962-06-12 Eastman Kodak Co Photopolymerization of olefinicallyunsaturated monomers by silver halides

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3765899A (en) * 1969-03-14 1973-10-16 Konishiroku Photo Ind Light-sensitive super-sensitized silver halide photographic emulsion
US3849147A (en) * 1969-06-25 1974-11-19 Fuji Photo Film Co Ltd Silver halide supersensitized photographic emulsion
US3856532A (en) * 1972-04-26 1974-12-24 Ilford Ltd Photographic silver halide emulsion containing a supersensitising combination
US3933510A (en) * 1972-09-04 1976-01-20 Fuji Photo Film Co., Ltd. Spectrally sensitized silver halide photographic emulsion
USH899H (en) 1986-03-25 1991-03-05 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide photographic material feasible for high speed
US5091298A (en) * 1990-07-19 1992-02-25 Eastman Kodak Company Sensitizing dyes for photographic materials
US5389505A (en) * 1992-09-18 1995-02-14 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5523203A (en) * 1993-03-03 1996-06-04 Fuji Photo Film Co., Ltd. Silver halide photographic material
US5478720A (en) * 1993-04-01 1995-12-26 Konica Corporation Silver halide photographic emulsion and silver halide photographic light-sensitive material
US5610005A (en) * 1993-11-25 1997-03-11 Fuji Photo Film Co., Ltd. Silver halide color photographic light-sensitive material
US6479226B2 (en) * 2000-04-27 2002-11-12 Konica Corporation Silver halide color photographic light sensitive material

Also Published As

Publication number Publication date
BE752386A (fr) 1970-12-01
DE2031491A1 (de) 1971-01-28
FR2052878A5 (enrdf_load_stackoverflow) 1971-04-09
JPS4838406B1 (enrdf_load_stackoverflow) 1973-11-17
GB1293862A (en) 1972-10-25

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