US3658536A - Multilayered color film of increased sharpness - Google Patents

Multilayered color film of increased sharpness Download PDF

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US3658536A
US3658536A US54539A US3658536DA US3658536A US 3658536 A US3658536 A US 3658536A US 54539 A US54539 A US 54539A US 3658536D A US3658536D A US 3658536DA US 3658536 A US3658536 A US 3658536A
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blue
emulsion
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Wilfred L Wolf
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WILFRED L WOLF
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    • 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
    • G03C7/3029—Materials characterised by a specific arrangement of layers, e.g. unit layers, or layers having a specific function
    • 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
    • G03C7/3029—Materials characterised by a specific arrangement of layers, e.g. unit layers, or layers having a specific function
    • G03C2007/3034—Unit layer
    • Y—GENERAL 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
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S430/00—Radiation imagery chemistry: process, composition, or product thereof
    • Y10S430/135—Cine film

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  • This invention relates to photography and more particularly to a multilayer color film of improved sharpness.
  • a conventional order of the individual layers, from the outer surface to the support is: (a) a blue-sensitive emulsion layer which records the yellow image, (b) a yellow filter layer which absorbs any blue light that has passed through the blue-sensitive emulsion layer, (c) a green-sensitized emulsion layer which records the magenta image and (d) a red-sensitized emulsion layer which records'the cyan image.
  • each of the emulsions is coated as two'layers, the uppermost of which serves as the normal speed emulsion and the other as the slower speed emulsion for the particular color sensitivity.
  • the layer which records the sharpest image is the top or blue-sensitive emulsion.
  • this yellow image-producing emulsion contributes little to the visual image because of its high luminosity.
  • the magenta image layer (green-sensitized) contributes the most to the sharpness of the image because the peak sensitivity of the human eye is in the green region of the spectrum which is absorbed by this layer. Accordingly, the described order of emulsion layers in which the light reaches the magenta layer after diffusion by the turbid blue-sensitive emulsion is not the most favorable for optimum resolution of fine detail.
  • U.S. Pat. No. 2,258,187 to Mannes et al discloses a doublycoated multilayer element having a layer order in whichthe blue-sensitive emulsion is divided into a fast and slow segment and in which the slow blue segment is placed between the yellow filter layer and the first green component. This layer and segment order permits the slow blue segment to be used as a color correction mask. There is no reference to improved sharpness.
  • a multilayer, multicolor photographic element will yield color images of improved sharpness and of suitable speed and colorquality when one portion of the blue-sensitive emulsion is positioned as an upper blue-sensitive layer above the yellow filter layer and the rest of the blue-sensitive emulsion is positioned as a lower blue-sensitive layer beneath the greenor red-sensitized layers.
  • a further object is to provide a multilayer,-multicolor element wherein the red-sensitized emulsion or both the red-' and green-sensitized emulsions are between two blue-sensitive emulsion layers.
  • FIG. 1 is a diagrammatic cross section of a known type of multilayered, multicolored photographic element.
  • FIG. 2 is a diagrammatic cross section showing the layer arrangements of a photographic element in accordance with one embodiment of the present invention.
  • FIG. 3 is a diagrammatic cross section of a known type of multilayered, multicolored photographic element in which each emulsion layer is doubly coated.
  • FIG. 4 is a diagrammatic cross section showing the layer arrangements in accordance with another embodiment of the present invention.
  • FIG. 5 is a diagrammatic cross section showing the layer arrangements of still another embodiment of the present invention.
  • FIG. 6 is a diagrammatic cross section of an element similar to that of FIG. 3 but with the lower blue-sensitive emulsion having been omitted.
  • each figure schematically represents a multilayered, multicolored photographic element for a subtractive color system.
  • the element can be, for example, a photographic color film, a photographic paper for color printing or other type of such photographic element.
  • the lowermost component in each instance is a support 11 which can be any of the sheet-like materials used for photographic supports such as cellulose acetate,
  • the support will be coated on its lower side with an anti-halation coating and on its upper side with a subbing layer which improves the adhesion of the lowermost photographic emulsion layer -to the support.
  • these conventional layers or coatings are omitted from the drawings for the sake of simplicity. Also omitted for the same reason are various possible interlayers.
  • the photographic element 10 is a known type of reversal color film for cameras in which a red-sensitized emulsion 12 is positioned above the support 11.
  • a red-sensitized emulsion 12 is positioned above the support 11.
  • this emulsion cancontain for example, a phenolic cyan-forming coupler such as described in U.'S. Pat. No. 2,423,730.
  • the next layer is a green-sensitized silver halide emulsion 14 containing, for example, a pyrazolone magenta-forming coupler of the type described in U. S. Pat. No. 2,600,788.
  • the next layer shown in FIG. I is the yellow filter layer 16.
  • This type of layer which is normally present in multilayer photographic elementsfor subtractive color systems can be of any material which will transmit red and green light and absorb blue light.
  • the yellow filter is advantageously composed of a gelatin layer containing yellow colloidal silver. This is commonly called a Carey Lea silver or CLS layer.
  • theiyellow filter layer may contain a yellow dye.
  • a yellow filter layer which transmits more blue light than would be transmitted by a yellow filter layer for a conventional photographic element as in FIG. 1.
  • blue-sensitive emulsion 17 Above the yellow filter layer 16 in FIG. 1 is blue-sensitive emulsion 17. When incorporated coupler emulsions are used this emulsion would contain, for example, an aryl acetanilide yellow-forming coupler of the type described in U. S. Pat. No. 2,875,057.
  • FIG. 2 illustrates a photographic element 20 of the invention.
  • An important difference between it and known photographic elements such as element of FIG. 1 is that there are two blue-sensitive emulsion layers 17 and 17 and the bluesensitive emulsion layer 17' is coated below the green and/or redsensitized layers. Specifically in FIG. 2 it is coated below both the greenand red-sensitized layers 14 and 12. Other layers can be substantially as described for FIG. 1.
  • blue-sensitive emulsion layer is used herein to refer to layers such as layers 17 and 17' that are primarily sensitive to blue or shorter wavelengths and are no spectrally sensitized to longer wavelengths, i.e., longer than about 540 nm.
  • the other emulsion layers although intrinsically blue-sensitive, are referred to by the color to which they are spectrally sensitized, i.e., as the green-sensitized emulsion layer or the red-sensitized emulsion layer.
  • Emulsion layer 17 is referred to herein as the lower bluesensitive emulsion layer.
  • the layer closest to the support will be called the lower layer of that particular sensitivity and the other layer will be called, for example, simply the blue-sensitive layer or the upper blue-sensitive layer. It should be understood, however, that these designations are used merely to distinguish between the two layers of the same color and that with some films an exposure may be made through the transparent base or support, e.g., as in exposing a reversal color film to red light during processing.
  • the layers on the emulsion side which are closest to the support are called lower layers.
  • the lowermost of conventional doubly coated layers of the same color sensitivity is sometimes referred to as the slow or slower emulsion layer.
  • This terminology is avoided in referring to the photographic elements of the present invention, however, because it is possible and even highly advantageous for the lower blue-sensitive layer to be an emulsion that, if singly coated and identically exposed, would be much faster than the normal speed blue-sensitive emulsion which provides the uppermost emulsion layer. Because of their lower positions the lower layers of any particular color sensitivity receive less light than the corresponding upper layers. This is especially true of the lower blue-sensitive layer which, in accordance with the present invention, is positioned below the yellow filter layer and re receives a much lower blue light exposure than the upper blue-sensitive layer.
  • the lower layer may become, in effect, a slower speed layer
  • the emulsion itself can be considerably faster than the emulsion of the upper layer of the same color sensitivity, so to avoid confusion it is called the lower layer rather than the slower layer.
  • the speeds of the emulsions are selected so that in combination with the positioning of the layers, the resulting speed of the upper layer will be from about 0.2 to about 1.4 log exposure faster than the lower layer of the same color sensitivity.
  • adjustments are made in the blue light absorbing ability of the yellow filter layer 16 in relation to the blue light absorbing ability of the upper blue sensitive emulsion layer and/or the blue light sensitivity of the greenand red-sensitized layers 14 and 12 in order to control the amount of blue light reaching the lower blue-sensitive layer 17'.
  • the amount of colloidal silver per unit area in the CLS layer is reduced to increase blue light transmission.
  • the yellow filter layer has a blue light transmission sufficient to expose the lower blue-sensitive layer to about 10 to 50 percent of the blue light received by the upper blue sensitive layer.
  • the photographic element of FIG. 2 offers at least two important advantages which also characterize other embodiments of the invention.
  • One is that the turbid slower blue-sensitive layer is removed from the top of the element and this reduces the scatter of the red and green light components of the image.
  • the other is that since the normal speed blue-sensitive layer of low turbidity is above the yellow filter layer which absorbs blue light the maximum exposure and speed in this blue-sensitive layer and good color reproduction are achieved.
  • FIG. 3 illustrates a doubly coated, multilayer photographic element 30 of known type.
  • Each of the doubly coated emulsions of a particular color sensitivity retains the same layer order as in FIG. 1.
  • the red-sensitized emulsion consists of a slower red-sensitized emulsion layer 12 and a fast or normal speed red-sensitized emulsion 12.
  • Overlying these layers is the yellow filter layer 16.
  • Both blue-sensitive layers, Le, a slower blue-sensitive emulsion layer 17 and a normal speed blue-sensitive emulsion layer 17, are coated above the yellow filter layer.
  • FIG. 4 represents a photographic element of the invention in which each emulsion of a particular color sensitivity is doubly coated but in which the blue-sensitive emulsion layer 17' is placed below the red-sensitized layers 12 and I2 and the green-sensitized layers 14 and 14, while the normal speed blue-sensitive emulsion remains above the yellow filter layer 16.
  • FIG. 5 illustrates another embodiment of the invention in which the lower blue-sensitive emulsion is coated between the red-sensitized emulsion 12 and the slower green-sensitizecl emulsion 14.
  • Other layers are substantially as indicated with respect to FIG. 4 except that the yellow filter layer 16 can be adjusted to provide somewhat lower transmission of blue light than would be desirable in the embodiments of FIGS. 2 and 4 where the blue light must pass through both the greenand red-sensitized layers before reaching the lowermost blue-sensitive layer.
  • FIG. 6 illustrates a photographic element similar to the known type of element of FIG. 3 but in which the blue-sensitive emulsion has been singly coated. There is no separate lower blue-sensitive layer. This type of photographic element is compared hereinafter with photographic elements of the invention as depicted in FIGS. 4 and 5.
  • the element of FIG. 6 has a serious drawback which is not shown by these data.
  • the maximum density obtainable in its blue layer is very low.
  • the maximum densities obtainable in each color layer should be about equal.
  • FIGS. 4 and 5 provide a desirable combination of image sharpness and color quality and any lack of color quality by low density in the blue-sensitive layers can be corrected by increasing the coverage of the lower blue-sensitive layer without substantial loss in image sharpness, since the increase in turbidity caused by the additional blue-sensitive emulsion is below the green-sensitized layer.
  • photographic elements is used in its usual broad sense to include negative and positive film, paper and the like, and includes not only such elements that render true visible color reproductions but also those that record as visible colors radiation which is outside the visible spectrum, e.g., infrared radiation.
  • the color forming couplers are dispersed in a suitable medium such as one of those described in U. S. Pat. Nos. 2,322,027; 2,304,940; 2,801,171 or 2,852,382.
  • a suitable medium such as one of those described in U. S. Pat. Nos. 2,322,027; 2,304,940; 2,801,171 or 2,852,382.
  • Representative useful color formers which may be used in such processes are well known in the literature, and are described for example in Fierke et al. U. S. Pat. No. 2,801,171; Weissberger et al. L. S. Pat. No. 2,474,293; Glass et al. U. S. Pat. No. 2,521,908; and McCrossen et al. U. S. Pat. No.
  • the couplers used to advantage in our materials are ballasted to make then non-diffusible in the silver halide emulsions in which they are incorporated.
  • the couplers utilized in the photographic elements of our invention can be dispersed in a high-boiling, crystalloidal compound which can be used as a vehicle for incorporating the coupler in the photographic emulsion according to method well-known in the art.
  • Various other known methods of incorporating the color-forming couplers in our element may also be utilized.
  • the low solvent dispersion described in Fierke U. S. Pat. No. 2,801,107 is used to advantage; or the couplers may be dispersed in natural resin-type solvents as described in Materinz U. S. Pat. No.
  • the couplers may be dissolved in a monomeric solution which is then polymerized in the presence of gelatin to produce dispersions of the coupler in the polymer as described in U. S. Pat. No. 2,825,382.
  • the color-forming couplers can be of the "fat-tail” variety, that is, the Fischer-type which have solubilizing groups on them which render them soluble in alkaline solution.
  • couplers of the type referred to above are incorporated in a color developer solution. These processes are described in the literature, such as Marines et al. U. S. Pat. No. 2,252,718 issued Aug. 19, 1941.
  • Couplers that form diffusible dyes may also be used in our elements wherein interest is indicated in the transfer of the color image to a contiguous receiver sheet as is described in Whitmore et al U. S. Pat. No. 3,227,550.
  • our photographic elements are advantageously color processed after exposure by conventional color processing techniques.
  • the film is first developed with a black-and-white negative developer solution, then following exposure to white light or treatment in a nucleating bath is given color development in an aqueous alkali solution containing a primary aromatic amine color developing agent.
  • the photographic material is treated with a ferricyanide bleach solution followed by a thiosulfate fixing bath to remove the silver image and residual silver halide, thus leaving the dye images.
  • Especially useful color developing agents are primary phenylene diamines and their derivatives, such as N,N-dimethyl-p-phenylenediamine N,N-diethylp-phenylenediamine N-carbamidomethyl-N-methyl-p-phenylenediamine N-carbamidomethyl-N-tetrahydrofurfuryl-Z-methyI-pphenylenediamine N-ethyl-N-carboxymethyl-2-methyl-p-phenylenediamine N-carbamidomethyl-N-ethyl-2-methyl-p-phenylenediamine N-ethyl-N-tetrahydrofurfuryl-Z-methyl-p-aminophenol 3-acetylamino-4-aminodimethylaniline N-ethyl-N-B-methanesulfonamidoethyl-4-aminoaniline N-ethy1-N-B-methanesulf
  • the emulsions used in the photographic elements of our invention can be chemically sensitized by any of the accepted procedures.
  • the emulsions can be digested with naturally active gelatin, or sulfur compounds can be added, such as those described in Sheppard U. 5. Pat. No. 1,574,944, issued Mar. 2, 1926; Sheppard et al. U. S. Pat. No. 1,623,499, issued Apr. 5, 1927; and Waller et al. U. S. Pat. No. 2,399,083; McVeigh U. 5. Pat. No. 3,297,447 and Dunn U. 5. Pat. No. 3,297,446.
  • the emulsions can also be treated with salts of the noble metals, such as ruthenium, rhodium, palladium, iridium and platinum, as described in Smith et al U. S. Pat. No. 2,448,060, issued Aug. 31, 1948 and as described in Trivelli et al. U. S. Pat. Nos. 2,566,245 and 2,566,263 both issued Aug. 28, 1951.
  • the noble metals such as ruthenium, rhodium, palladium, iridium and platinum
  • Spectral sensitizing dyes can be used conveniently to confer additional sensitivity to the light-sensitive silver halide emulsion of the multilayer photographic elements of the invention.
  • additional spectral sensitization can be obtained by treating the emulsion with a solution of a sensitizing dye in an organic solvent or the dye may be added in the form of a dispersion as described in Owens et al. British Pat. No. 1,154,781.
  • the dye may either be added to the emulsion as a final step or at some earlier stage.
  • Sensitizing dyes useful in sensitizing such emulsions are described, for example, in Brooker et a1 U. S. Pat. No. 2,526,632, issued Oct. 24, 1950; Sprague U. S. Pat. No. 2,503,776, issued Apr. 11, 1950; Brooker et a1. U. S. Pat. No. 2,493,748; and Taber et al. U. S. Pat. No. 3,384,486.
  • Spectral sensitizers which can be used include the cyanines, merocyanines, complex (tri or tetranuclear) merocyanines, complex (tri or tetranuclear) cyanines, holopolar cyanines, styryls, hemicyanines (e.g. enamine hemicyanines), oxonols and hemioxonols.
  • Dyes of the cyanine classes may contain such basic nuclei as the thiazolines, oxazolines, pyrrolines, pyridines, oxazoles, thiazoles, selenazoles and imidazoles.
  • Such nuclei may contain alkyl, alkylene, hydroxyalkyl, sulfoalkyl, carboxyalkyl, aminoalkyl and enamine groups and may be fused to carbocyclic or heterocyclic ring systems either unstubstituted or substituted with halogen, phenyl, alkyl, haloalkyl, cyano or alkoxy groups.
  • the dyes may be symmetrical or unsymmetrical and may contain alkyl, phenyl, enamine or heterocyclic substituents on the methine or polymethine chain.
  • the merocyanine dyes may contain the basic nuclei mentioned above as well as acid nuclei such as thiohydantoins, rhodanines, oxazolidenediones, thiazolidenediones, barbituric acids, thiazolineones and malononitrile. These acid nuclei may be substituted with alkyl, alkylene, phenyl, carboxyalkyl, suloalkyl, hydroxyalkyl, alkoxyalkyl, alkylamino groups or heterocyclic nuclei. Combinations of these dyes may be used, if desired.
  • supersensitizing addenda which do not absorb visible light may be included, for instance, ascorbic acid derivatives, azaindenes, cadmium salts, and organic sulfonic acids as described in McFall et al. U. S. Pat. No. 2,933,390 and Jones et a1 U. S. Pat. No. 2,937,089.
  • the emulsion may also contain speed-increasing compounds of the quaternary ammonium type of Carroll U. S. Pat. No. 2,271,623, issued Feb. 3, 1942; Carroll et al. U. S. Pat. No. 2,288,226, issued June 30, 1942; and Carroll et al. U. S. Pat. No. 2,334,864, issued Nov. 23, 1943; and the polyalkylene glycol type of Carroll et a1.
  • the photographic layers and other layers of a photographic element employed as described herein can be coated on a of N-methyl-N-B-sulfoethyl-p-phenwide variety of supports.
  • Typical supports include cellulose nitrate film, cellulose ester film, poly(vinyl acetal) film, polystyrene film, poly(ethylene terephthalate) film, polycarbonate film and related films or resinous materials, as well as glass, paper, metal and the like.
  • a flexible support is employed, especially a paper support, which can be partially acetylated or coated with baryta and/or an alpha-olefin polymer, particularly a polymer of an alpha-olefin containing two to 10 carbon atoms such as polyethylene, polypropylene, ethylenebutene copolymers and the like.
  • the emulsions of our invention may employ various binders therefor.
  • binders for example, gelatin, colloidal albumin, water-soluble vinyl polymers, cellulose derivatives, proteins, water-soluble polyacrylamides, polyvinyl pyrrolidone and the like.
  • these binders may be utilized alone or mixtures thereof may be utilized.
  • the binders may contain dispersed polymerized vinyl compounds, e.g. synthetic polymers of alkyl acrylates and methacrylates and acrylic acid, sulfoalkyl acrylates or methacrylates and the like.
  • the photographic and other hardenable layers used in the practice of this invention can be hardened by various organic or inorganic hardeners, alone or in combination, such as the aldehydes, and blocked aldehydes, ketones, carboxylic and carbonic acid derivatives, sulfonate esters sulfonyl halides and vinyl sulfonyl ethers, active halogen compounds, epoxy compounds, aziridines, active olefins, isocyanates, carbodiimides, mixed function hardeners and polymeric hardeners such as oxidized polysaccharides like dialdehyde starch, oxyguargum and the like.
  • various organic or inorganic hardeners such as the aldehydes, and blocked aldehydes, ketones, carboxylic and carbonic acid derivatives, sulfonate esters sulfonyl halides and vinyl sulfonyl ethers, active halogen compounds, epoxy compounds, aziridines, active
  • the silver halide emulsions used in the practice of this invention can be protected against the production of fog and can be stabilized against loss of sensitivity during keeping.
  • Suitable antifoggants and stabilizers each used alone or in combination include thiazolium salts described in Brooker et a1 U. S. Pat. No. 2,131,038 and Allen et a1.
  • the silver halide emulsions used with this invention can comprise silver chloride, silver bromide, silver bromoiodide, silver chlorobromoiodide or mixtures thereof.
  • the emulsions may be coarse or fine grain and can be prepared by any of the wellknown procedures, e.g., single jet emulsions, double jet emulsions, such as Lippmann emulsions, ammoniacal emulsions, thiocyanate or thioether ripened emulsions such as those described in Nietz et al. U. S. Pat. No. 2,222,264; lllingsworth U. S. Pat. No. 3,320,069; and McBride U. S. Pat. No. 3,271,157.
  • Surface image emulsions may be used or internal image emulsions such as those described in Davey et a] U. S. Pat. No. 2,592,250; Porter et a1 U. S. Pat. No. 3,206,313; Berriman U. 5. Pat. No. 3,367,778 and Bacon et al. U. S. Pat. No. 3,447,927. If desired, mixtures of surface and internal image emulsions may be used as described in Luckey et al. U. S. Pat. No. 2,996,382. Negative type emulsions may be used or directed positive emulsions such as those described in Leermakers U. S. Pat. No.
  • the emulsions may be regular grain emulsions such as the type described in Klein and Moisar, J. Phot. Sci., Vol. 12, No. 5, Sept/Oct., 1964, pp. 242-251.
  • a photographic element according to claim 1 in which an upper and lower emulsion layer is provided for each color sensitivity.
  • An element according to claim 3 comprising layers in the following sequence from the outer surface to the support:

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DE2530645A1 (de) * 1974-07-09 1976-01-29 Eastman Kodak Co Farbphotographisches aufzeichnungsmaterial
US3992210A (en) * 1973-06-05 1976-11-16 E. I. Du Pont De Nemours And Company Silver halide films with controlled gradient balance
US4157917A (en) * 1973-11-12 1979-06-12 Fuji Photo Film Co., Ltd. Color photographic light-sensitive material
US4184876A (en) * 1974-07-09 1980-01-22 Eastman Kodak Company Color photographic materials having increased speed
US4320193A (en) * 1980-05-21 1982-03-16 Bristol-Myers Company Photographic emulsions having special chromatic effects
JPS58100846A (ja) * 1981-12-13 1983-06-15 Konishiroku Photo Ind Co Ltd ハロゲン化銀カラー写真感光材料
US4427763A (en) 1981-09-12 1984-01-24 Agfa-Gevaert Aktiengesellschaft Photographic recording material with a precursor compound for a yellow mask
DE3410639A1 (de) * 1983-03-28 1984-10-04 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo Lichtempfindliches farbphotographisches silberhalogenidmaterial
JPS59180555A (ja) * 1983-03-31 1984-10-13 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS59180556A (ja) * 1983-03-30 1984-10-13 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS59182451A (ja) * 1983-04-01 1984-10-17 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS60128443A (ja) * 1983-12-15 1985-07-09 Fuji Photo Film Co Ltd カラ−写真感光材料
JPS60194450A (ja) * 1984-03-16 1985-10-02 Konishiroku Photo Ind Co Ltd ハロゲン化銀カラ−写真感光材料
US4701404A (en) * 1984-09-14 1987-10-20 Konishiroku Photo Industry Co., Ltd. Silver halide color photographic material of high sensitivity and improved granularity
US4724198A (en) * 1983-05-06 1988-02-09 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide color photographic material having multi-layered red-sensitive, green-sensitive and blue-sensitive emulsion layers
US4748106A (en) * 1985-07-18 1988-05-31 Fuji Photo Film Co., Ltd. Color photographic light-sensitive materials containing specified tabular grains
US4752558A (en) * 1983-03-31 1988-06-21 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide color photographic material
US5034310A (en) * 1988-10-18 1991-07-23 Konica Corporation Silver halide color photographic photosensitive material
US5311246A (en) * 1992-08-26 1994-05-10 Graphic Arts Technical Foundation Frequency modulated acutance guide and method of use

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EP0265590B1 (fr) * 1981-07-10 1994-06-01 Konica Corporation Matériau photographique couleur sensible à la lumière

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Cited By (20)

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US3992210A (en) * 1973-06-05 1976-11-16 E. I. Du Pont De Nemours And Company Silver halide films with controlled gradient balance
US4157917A (en) * 1973-11-12 1979-06-12 Fuji Photo Film Co., Ltd. Color photographic light-sensitive material
US4184876A (en) * 1974-07-09 1980-01-22 Eastman Kodak Company Color photographic materials having increased speed
DE2530645A1 (de) * 1974-07-09 1976-01-29 Eastman Kodak Co Farbphotographisches aufzeichnungsmaterial
US4320193A (en) * 1980-05-21 1982-03-16 Bristol-Myers Company Photographic emulsions having special chromatic effects
US4427763A (en) 1981-09-12 1984-01-24 Agfa-Gevaert Aktiengesellschaft Photographic recording material with a precursor compound for a yellow mask
JPS58100846A (ja) * 1981-12-13 1983-06-15 Konishiroku Photo Ind Co Ltd ハロゲン化銀カラー写真感光材料
DE3410639A1 (de) * 1983-03-28 1984-10-04 Konishiroku Photo Industry Co., Ltd., Tokio/Tokyo Lichtempfindliches farbphotographisches silberhalogenidmaterial
JPS59180556A (ja) * 1983-03-30 1984-10-13 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
US4752558A (en) * 1983-03-31 1988-06-21 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide color photographic material
JPS59180555A (ja) * 1983-03-31 1984-10-13 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
JPS59182451A (ja) * 1983-04-01 1984-10-17 Konishiroku Photo Ind Co Ltd ハロゲン化銀写真感光材料
US4724198A (en) * 1983-05-06 1988-02-09 Konishiroku Photo Industry Co., Ltd. Light-sensitive silver halide color photographic material having multi-layered red-sensitive, green-sensitive and blue-sensitive emulsion layers
JPS60128443A (ja) * 1983-12-15 1985-07-09 Fuji Photo Film Co Ltd カラ−写真感光材料
JPS60194450A (ja) * 1984-03-16 1985-10-02 Konishiroku Photo Ind Co Ltd ハロゲン化銀カラ−写真感光材料
US4977069A (en) * 1984-03-16 1990-12-11 Konishiroku Photo Industry Co., Ltd. Silver halide color photographic light sensitive material
US4701404A (en) * 1984-09-14 1987-10-20 Konishiroku Photo Industry Co., Ltd. Silver halide color photographic material of high sensitivity and improved granularity
US4748106A (en) * 1985-07-18 1988-05-31 Fuji Photo Film Co., Ltd. Color photographic light-sensitive materials containing specified tabular grains
US5034310A (en) * 1988-10-18 1991-07-23 Konica Corporation Silver halide color photographic photosensitive material
US5311246A (en) * 1992-08-26 1994-05-10 Graphic Arts Technical Foundation Frequency modulated acutance guide and method of use

Also Published As

Publication number Publication date
CA944999A (en) 1974-04-09
BE769966A (fr) 1971-11-16
FR2101627A5 (fr) 1972-03-31
GB1350249A (en) 1974-04-18

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