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
  • G03C1/18—Methine and polymethine dyes with an odd number of CH groups with three CH groups
• • 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
  • G03C7/00—Multicolour photographic processes or agents therefor; Regeneration of such processing agents; Photosensitive materials for multicolour processes
  • G03C7/30—Colour processes using colour-coupling substances; Materials therefor; Preparing or processing such materials
  • G03C7/3041—Materials with specific sensitometric characteristics, e.g. gamma, density

Definitions

• the present invention relates to a silver halide color photographic material, more specifically to a silver halide color photographic material capable of forming color photographic images which offers excellent color reproduction even under various conditions with different light sources.
• interimage effect it is effective on the improvement in color reproducibility parameters, particularly color purity, in silver halide multiple-layered color photographic light-sensitive materials.
• DIR diffusible infrared
• the method which provides an effect similar to the interimage effect by using a colored coupler in an amount more than the amount to compensate the undesirable absorption in the case of color negative films are available.
• the object of the present invention is to provide a color photographic light-sensitive material with high sensitivity which offers exact color reproduction not only under daylight picture taking conditions but also under fluorescent lamp picture taking conditions.
• a silver halide color photographic tight-sensitive material having at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one red-sensitive silver halide emulsion layer on the support, wherein the maximum sensitivity wavelength ⁇ R max , maximum sensitivity SR max and sensitivity at 610 nm SR 610 of the red-sensitive emulsion layer and the maximum sensitivity wavelength ⁇ G max , maximum sensitivity SG nx and sensitivity at 545 nm SG 545 of the green-sensitive emulsion layer satisfy the following requirements:
• a typical claim is that pictures taken in the presence of fluorescent lamp light are so greenish that the face of a person photographed lacks liveliness. This was found to be due to the spectral distribution of fluorescent lamp light consists of two components, one having a continuous smooth curve in the visible region and the other having a bright line (characteristic curve) in a particular wavelength region, and is sensed as strongly greenish, less reddish by color films while being felt white by human eyes.
• the so-called three-wavelength fluorescent lamp which has recently gained wide popularity as ordinary household appliance, was found to expand the color shift described above in color photography because of the great contribution of the bright line.
• the present inventors found that the problem described above can be well overcome by setting the spectral sensitivity distribution at a minimum density (D min ) + 0.3 so that the green- and red-sensitive layers fall in the relationship described in the claim of the invention.
• the sensitivity at 610 nm, SR 610 exceed 90% of the maximum spectral sensitivity, SR max in the spectral sensitivity distribution SR( ⁇ ) of the red-sensitive layer at a density of D min + 0.3.
• the sensitizing dyes of the present invention contained in the green- and red-sensitive layers upon the chemical sensitization of the silver halide.
• spectral sensitizing dye This constituent can be obtained by a combination of at least one sensitizing dye represented by the formula I and at least one sensitizing dye represented by the formula III, and the sensitizing dye represented by the formula I is used in an amount of 10 to 90 mol%, preferably 60 to 90 mol%, based on the total amount of dyes used. It is also possible to combine at least one of the formula I, at least one of the formula II and at least one of the formula III.
• R 1 represents a hydrogen atom, an alkyl group or an aryl group
• R 2 , R 3 , R 4 and R 5 independently represent an alkyl group or an aryl group.
• Z 1 , Z 2 , Z 3 and Z 4 independenfly represent a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group, an amino group, an acyl group, an acylamino group, an acyloxy group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylamino group, a carbamoyl group, an aryl group, an alkyl group, a cyano group or a sulfonyl group.
• Z 1 and Z 2 and/or Z 3 and Z 4 respectively may link together to form a ring.
• X 1 - represents an anion.
• n represents the integer 1 or 2; when the sensitizing dye forms an intramolecular salt, n represents 1.
• R 6 represents a hydrogen atom, an alkyl group or an aryl group;
• R 7 , R s , Rg and R 10 independently represent an alkyl group or an aryl group.
• Y 1 and Y 2 independently represent a nitrogen atom, an oxygen atom, a sulfur atom or a selenium atom; when Y 1 is a sulfur atom, an oxygen atom or a selenium atom, it does not have the above R 7 . Also, both Y 1 and Y 2 do not represent a nitrogen atom or a sulfur atom.
• Z 5 , Z 6 , Z 7 and Z 8 independently represent a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group, an amino group, an acyl group, an acylamino group, an acyloxy group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylamino group, a carbamoyl group, an aryl group, an alkyl group, a cyano group, or a sulfonyl group.
• Z 6 and Z 6 and/or R 7 and R 8 respectively may link together to form a ring.
• X 2 ⁇ represents an anion.
• n the integer 1 or 2; when the sensitizing dye forms an intramolecular salt, n represents 1.
• R 11 represents a hydrogen atom, an alkyl group or an aryl group
• R 12 and R 13 independently represent an alkyl group or an aryl group.
• Y 3 and Y 4 independently represent a sulfur atom or a selenium atom.
• Z 9 , Z 10 , Z 11 and Z 12 independently represent a hydrogen atom, a halogen atom, a hydroxyl group, an alkoxy group, an amino group, an acyl group, an acylamino group, an acyloxy group, an aryloxy group, an alkoxycarbonyl group, an aryloxycarbonyl group, an alkoxycarbonylamino group, a sulfonyl group, a carbamoyl group, an aryl group, an alkyl group or a cyano group.
• Zg and Z 10 and/or Z 11 and Z 12 respectively may link together to form a ring.
• X 3 ⁇ represents an anion.
• n represents the integer 1 or 2; when the sensitizing dye forms an intramolecular salt, n represents 1.
• any appropriate means can be used.
• such a spectral sensitivity distribution can be obtained using a spectral sensitizing dye.
• sensitizing dye oxacabocyanine, oxabenzimidazolecyanine, thia-4' -cyanine or thia-2' -cyanine dyes which can be used for the green-sensitive layer of the present invention is given below, but these are not to be construed as limitative on the invention.
• the green-sensitive emulsion layer of the invention contains oxacabocyanine, oxabenzimidazolecyanine, thia-4' -cyanine or thia-2' -cyanine dyes in an amount of 50 to 80 mol% based on the total amount of a sed- sitezing dye in it.
• the benzothiazoles and quinolones described in Japanese Patent Examined Publication No. 24533/1982 and the quinoline derivatives described in Japanese Patent Examined Publication No. 24889/1982 can be added to the red-sensitive emulsion layer or the green-sensitive emulsion layer of the invention as supersensitizers if desired.
• Couplers can be used for the present invention. Examples thereof are described in the above Research Disdosures.
• the additives used for the present invention can be added by, for example, the dispersion method described in RD308119 XIV.
• the light-sensitive material of the present invention may be provided with auxiliary layers such as a fitter layer and an interlayer as described in the above RD308119 VII-K.
• the light-sensitive material of the present invention can have various layer structures such as ordinary layer structure, reverse layer structure and unit structure as described in the above RD308119 VII-K.
• the present invention is applicable to various color light-sensitive materials represented by color negative films for ordinary or movie use, color reversal films for slides or televisions, color papers, color positive films, and color reversal papers.
• the light-sensitive material of the present invention can be developed by the ordinary processes described in the above RD17643 pp. 28-29, RD18716 p. 647 and RD308119 XVII.
• the amount added to the silver halide photographic light-sensitive material is expressed in gram per m 2 , unless otherwise specified. Also, the amount of silver halide and colloidal silver is expressed on the basis of the amount of silver.
• Layer 2 First interlayer IL-1
• Layer 8 Moderate speed green-sensitive emulsion layer GM
• Layer 10 Yellow filter layer YC
• Emulsion containing monodispersed (individual grain silver iodide content relative standard deviation 18%) silver iodobromide grains having an average grain size of 0.35 ⁇ an average silver iodide content of 6.0 mol% and a core of 35 mol% Agl.
• Emulsion containing monodispersed (individual grain silver iodide content relative standard deviation 19%) silver iodobromide grains having an average grain size of 0.5 ⁇ m, an average silver iodide content of 6.8 mol% and a core of 35 mol% Agl.
• Emulsion containing monodispersed (individual grain silver iodide content relative standard deviation 18%) silver iodobromide grains having an average grain size of 0.65 ⁇ m, an average silver iodide content of 8.0 mol% and a core of 35 mol% Agl.
• Emulsion containing monodispersed silver iodobromide grains having an average grain size of 0.8 ⁇ m, an average silver iodide content of 8.0 mol% and a twin plane of an aspect ratio of 3.5.
• a coating aid Su-1 a dispersing agent Su-2, a viscosity regulator, hardeners H-1 and H-2, a stabilizer ST-1, an antifogging agent AF-1 and two kinds of AF-2 having an average molecular weight of 10,000 or 1,100,000, respectively, were added.
• the average grain size of silver halide in the emulsions used for the sample described above is expressed as a cube diameter.
• Each emulsion was optimally sensitized with gold and sulfur.
• sample Nos. 102 through 106 were prepared in exactly the same manner as in sample No. 101 except that the sensitizing dyes for Layers 3, 4, 5, 8 and 9 were altered to those listed in Table 1.
• the total addition amount of sensitizing dyes listed in Table 1 in each layer is the same in sample Nos. 101 through 106.
• the total amount differences among samples are based on combinations of sensitizing dyes and molar ratios thereof.
• Each emulsion contained in sample Nos. 101 through 106 was optimally chemically sensitized with a gold and sulfur sensitizer by an ordinary method.
• Stabilization was conducted by the 3-vessel counter current method, wherein the replenisher was fed to the final stabilizer tank and the overflow solution flew into the tank before the final tank.
• composition of the color developer used is as follows:
• composition of the color developer replenisher used is as follows:
• composition of the bleacher used is as follows:
• composition of the bleacher replenisher used is as follows:
• composition of the fixer and fixer replenisher used is as follows:
• composition of the stabilizer and stabilizer replenisher used is as follows:
• a sample was prepared photographing using fluorescent lamp EX-N under such printing conditions that when using the strobe light, the grey portions showed the same grey density as that of the color checker on the print, and then, a print of the sample was prepared. The reproducibility of a skin color chart on the print above obtaind was visually evaluated.
• sample Nos. 101 through 103 and 106 were found to offer skin color reproduction with undesirable green and blue tones lacking liveliness.
• the inventive sample Nos. 104 and 105 provided a good skin color reproduction and favorable grey reproduction even under fluorescent lamp lighting.

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• Physics & Mathematics (AREA)
• Chemical & Material Sciences (AREA)
• General Physics & Mathematics (AREA)
• Spectroscopy & Molecular Physics (AREA)
• Chemical Kinetics & Catalysis (AREA)
• Engineering & Computer Science (AREA)
• Materials Engineering (AREA)
• Silver Salt Photography Or Processing Solution Therefor (AREA)

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Cited By (4)

Citations (3)

• 1990
  • 1990-03-14 JP JP6361590A patent/JPH03263042A/ja active Pending
• 1991
  • 1991-03-08 EP EP91301960A patent/EP0447138A1/de not_active Withdrawn

Patent Citations (3)

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