Abstract: A color photographic material composed of a support having thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer, whereinwith respect to helium-cadmium laser light having a wavelength of 441.6 nm, the ratio of the sensitivity of the green-sensitive emulsion layer to that of the blue-sensitive emulsion layer and the ratio of the sensitivity of the red-sensitive emulsion layer to that of the blue-sensitive emulsion layer are not more than 0.10;with respect to argon laser light having a wavelength of 514.5 nm, the ratio of the sensitivity of the blue-sensitive emulsion layer to that of the green-sensitive emulsion layer and the ratio of the sensitivity of the red-sensitive emulsion layer to that of the green-sensitive emulsion layer are not more than 0.10; andwith respect to helium-neon laser light having a wavelength of 632.

Abstract: The present invention is directed to a silver halide color photographic material including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein at least one of the photosensitive layers comprises two or more unit layers having different sensitivities, and among all of said unit layers, the unit layer highest in sensitivity contains at least one of(a) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and(b) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized,with the amount of said at least one of compounds (a) and (b) being at most 1 mol % based on the amount of the silver halide in said unit layer highest in s

Abstract: There is described a photographic element in which increased exposure latitude is obtained by having a dye-forming coupler in a non-light-sensitive interlayer between two light-sensitive silver halide emulsion layers. One of the silver halide emulsion layers is sensitive to a first region of the spectrum and contains a dye-forming coupler that forms a dye complementary in color to the region of the spectrum to which that layer is sensitive. The second emulsion layer is sensitive to a second region of the spectrum and contains a second coupler that forms a dye complementary to the second region of the visible spectrum. The exposure latitude in the layer sensitive to the first region of the spectrum is increased when the coupler in the interlayer forms a dye complementary in color to the second region of the spectrum, but as a function of development in the first region of the spectrum.

Abstract: A multilayer color positive photographic print material with extended exposure latitude contains a limited amount of a spectral sensitizing dye for a first region of the spectrum in a silver halide emulsion layer spectrally sensitized to a second region of the spectrum.

Abstract: A novel silver halide color photographic material is provided which comprises at least one colored coupler represented by the general formula (I) and at least one cyan coupler represented by the general formula (II), (III), (IV) or (V): ##STR1## wherein R.sub.1 represents an aromatic or heterocyclic group; R.sub.2 represents a group capable of being substituted on a naphthol ring; R.sub.3 represents an aliphatic, heterocyclic or aromatic group; R.sub.4 represents an aromatic group excluding p-cyanophenyl group; R.sub.5 represents an aromatic or heterocyclic group; R.sub.6 represents an aliphatic group; n represents an integer of 0 to 4; m represents an integer of 0 to 3; A--B--N.dbd.

Abstract: A light-sensitive silver halide emulsion is disclosed, which comprises light-sensitive silver halide grains in a binder, wherein tabular grains having a diameter of at least 0.15 .mu.m account for at least 70% of the total projected area of said silver halide grains, said tubular grains have a mean aspect ratio of not more than 8.0, and at least 50% (by number) of all of said tabular grains are tabular grains in which the ratio (b/a) of the thickness (b) of said tabular grain to the longest spacing (a) between two or more parallel twinning planes of said tabular grain is at least 5. A color photographic material using the light-sensitive silver halide emulsion for at least one of the silver halide emulsion layers other than the outermost silver halide emulsion layer is also disclosed.

Abstract: A method for specifically and sensitively detecting, identifying, and quantitating any non-viral organism, category or group of organisms containing ribosomal RNA in a sample is disclosed. The nucleic acids of the organisms present in the sample are brought together with a marked probe comprising nucleic acid molecules which are complementary only to ribosomal RNA subsequences known to be conserved in an organism, category or group or organisms. The probe and sample nucleic acid mixture is incubated under nucleic acid hybridization conditions and then assayed to determine the degree of hybridization that has occurred. Hybridization indicates the presence and identity of the organism, category or group or organisms in the sample. The quantity of ribosomal RNA present in the sample can be determined and compared to that normally present in the known organisms to determine the number of organisms present. Batteries of sequentially more specific probes can also be utilized.

Abstract: New electrostatographic developers are provided, containing dual function polymeric binder/charge agents. The new developers contain toner particles comprising a vinyl addition binder polymer containing a quaternary phosphonium salt, wherein the phosphonium salt has a cationic portion comprising a phosphorus atom covalently bonded to the binder polymer.

Abstract: In a silver halide color photographic material which has red-, green- and blue-sensitive silver halide emulsion layers on a support, the improvement wherein the total thickness of the hydrophilic colloid layers is not more than 18 .mu.m on a dry basis and at least one silver halide emulsion layer contains a cyan dye-forming coupler represented by the following general formula (I): ##STR1## where R.sub.1 is an optionally substituted alkyl, aryl or heterocyclic group; Ar is an optionally substituted aryl group; and X is a group that may be eliminated upon coupling reaction with the oxidized product of a color developing agent.

Abstract: A multilayer silver halide color photographic material is described, comprising a support having thereon at least two light-sensitive silver halide emulsion layers, each having a different color sensitivity, and having associated therewith dye-forming agents forming imaging dyes, each having a different hue, wherein at least one dye of a hue substantially not contributing to the formation of the hue of a specific image of a region that the image density of at least one of said imaging dyes is above a definite density value of from 1.2 to 2.5 is provided so as to provide gradation to the specific image region.

Abstract: A color photographic material comprising a support having provided thereon a blue-sensitive silver halide emulsion layer containing at least one coupler capable of reacting with an oxidation product of an aromatic primary amine developing agent to form a yellow dye, at least one coupler capable of reacting with said oxidation product to form a cyan dye and not to produce a diffusible development inhibitor or a precursor thereof, and at least one compound capable of reacting with said oxidation product to produce a diffusible development inhibitor or a precursor thereof.

Abstract: Silver halide photographic light-sensitive material comprising a support having a plurality of silver halide emulsion layers which are sensitive to the same spectral region and having different speeds and at least one light-sensitive layer comprising a nondiffusible coupler, which upon reaction with an oxidized product of a color developing agent is capable of forming a nondiffusible dye, wherein the silver halide emulsion layer having the greatest speed of said plurality of silver halide emulsion layers sensitive to a particular spectral region contains a nondiffusible coupler which, upon reaction with an oxidized product of a color developing agent, is capable of producing a moveable dye, and a silver halide emulsion having a speed slower than said fastest speed layer contains a nondiffusible compound which, upon reaction with an oxidized product of a color developing agent, is capable of releasing a development inhibitor material.

Abstract: A color photographic recording material comprising at least one layer of which the primary sensitivity is blue, another layer of which the primary sensitivity is green and a further layer of which the primary sensitivity is red, gives satisfactory density graduations for details of high color saturation when a red sensitivity is produced in at least one layer, of which the primary sensitivity is green, and in at least one layer, of which the primary sensitivity is blue, the primary sensitivity being 8 to 25 DIN higher than the secondary sensitivity.

Abstract: A silver halide photographic material is disclosed, comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer and at least one substantially light-insensitive silver halide emulsion layer, wherein the substantially light-insensitive silver halide emulsion layer is present between a layer exhibiting the highest sensitivity among the light-sensitive silver halide emulsion layers and the support. This material is decreased in halation and cross-over light, and is excellent in sharpness.

Abstract: The present invention relates to silver halide color photosensitive materials having improved tone and color reproductions. According to the present invention, there is provided a silver halide color photosensitive material wherein a coupler having the following general formula (I) is contained in a green-sensitive material and wherein a cyan gradation added to a specific image of a region in which a yellow and/or magenta image density obtained by color development exceeds 0.7, so as to increase cyan image gradation in the specific image region independently of the cyan density in a cyan coloring red-sensitive layer and as the yellow and/or magenta image density in the specific image region increases. Formula (I): ##STR1## wherein R.sub.11 represents a hydrogen atom or a substituent, X represents a hydrogen atom or a group which can be released upon a coupling reaction with an oxidized product of an aromatic primary amine developing agent, and Za, Zb and Zc each represents a methine, substituted methine, .

Abstract: A reversal photographic element comprising at least two dye image-forming units, at least one unit comprising(1) a first silver halide emulsion layer spectrally sensitized to a given region of the spectrum with which is associated a dye image-forming chromogenic coupler and(2) a second silver halide emulsion layer spectrally sensitized to a different region of the spectrum than the first and containing an interimage effect-forming means such as a development inhibitor-releasing coupler, which forms either a colorless compound or a dye which does not substantially take part in the formation of the image.

Abstract: A silver halide color photographic material comprising a support and at least one red-sensitive emulsion layer, at least one green-sensitive emulsion layer and at least one blue-sensitive emulsion layer on the support, which contains at least one cyan dye forming coupler represented by the general formula (I) and at least one cyan dye forming coupler represented by the general formula (II): ##STR1## wherein R.sub.1 represents --CONR.sub.5 R.sub.6, --NHCORhd 5, --NHCOOR.sub.7, --NHSO.sub.2 R.sub.7, --NHCONR.sub.5 R.sub.6 or --NHSO.sub.2 NR.sub.5 R.sub.6, R.sub.2 represents a group which can be substituted in the naphthol ring, m represents 0 or an integer of 1 to 3, R.sub.3 represents a monovalent group, R.sub.4 represents an aromatic group, and X and Y each represents a hydrogen atom or a group capable of leaving through a coupling reaction with an oxidized product of aromatic primary amine developing agent; R.sub.5 and R.sub.

Abstract: There is disclosed a light-sensitive silver halide color photographic material having red-sensitive, green-sensitive and blue-sensitive emulsion layers, each layer consisting of two or more layers with different sensitivities on a support, wherein the layers are constituted so as to satisfy the following requirements (A), (B), (C) and (D):(A) of the respective emulsion layers having the highest sensitivities among the the red-sensitive, green-sensitive and blue-sensitive emulsion layers, the highest sensitivity blue-sensitive emulsion layer is provided on the side farthest from the support;(B) at least the the highest sensitivity red-sensitive emulsion layer and the highest sensitivity green-sensitive emulsion layer are provided between the the highest blue-sensitive emulsion layer and a blue-sensitive emulsion layer with lower sensitivity;(C) none of the respective red-sensitive, green-sensitive and blue-sensitive emulsion layers having the lowest sensitivities exists on the side farther than the low sensiti

Abstract: A silver halide color photographic material is provided, having on a support, one or more cyan coupler-containing red-sensitive silver halide emulsion layers, magenta coupler-containing green-sensitive silver halide emulsion layers and yellow coupler-containing blue-sensitive silver halide emulsion layers and additionally having a silver halide emulsion layer which contains at least one cyan coupler and which is spectrally sensitized such that the relation of the maximum sensitivity wavelength .lambda..sub.RG of the spectral sensitivity distribution thereof to the weight averaged wavelength of sensitivity .lambda..sub.R of the spectral sensitivity distribution of said red-sensitive layer and the weight averaged wavelength of sensitivity .lambda..sub.G of the spectral sensitivity distribution of said green-sensitive layer satisfies the formulae.lambda..sub.R -.lambda..sub.RG .gtoreq.5 nmand.lambda..sub.RG -.lambda..sub.G .gtoreq.5 nm.

Abstract: Silver halide color photographic materials comprising a support having thereon at least one blue-sensitive silver halide emulsion layer comprising a yellow dye-forming coupler, at least one green-sensitive silver halide emulsion layer comprising a magenta dye-forming coupler, and at least one red-sensitive silver halide emulsion layer comprising a cyan dye-forming coupler, characterized in that the wavelength weight-averaged between 500 nm and 600 nm (.lambda..sub.G) of spectral sensitivity distribution of all green-sensitive layers is in the range of 520 nm to 580 nm, the wavelength weight-averaged between 500 nm and 600 nm (.lambda..sub.-R) of spectral sensitivity distribution of one or more donor layers which exert an interlayer effect to at least one red-sensitive emulsion layer comprising a cyan dye-forming coupler is located in the range of 500 nm to 560 nm, and the difference of (.lambda..sub.G -.lambda..sub.-R) is greater than 5 nm.

Abstract: A silver halide color photographic material having blue-, green- and red-sensitive silver halide emulsion layers coated on a support is provided, each of said layers being composed of a plurality of sub-layers having different sensitivities. In said material, at least a red-sensitive silver halide emulsion sub-layer having high sensitivity is provided between a first green-sensitive silver halide emulsion sub-layer of high sensitivity and a second green-sensitive silver halide emulsion sub-layer having a lower sensitivity than said first green-sensitive sub-layer, said first green-sensitive sub-layer and/or said red-sensitive sub-layer with high sensitivity giving a maximum color density of formed dye in said material higher than 0.6 but not exceeding 1.3.

Abstract: A photosensitive silver halide colored photographic material having (1) ballasted couplers combined with photosensitive silver halide emulsions and (2) colored compounds capable of reacting with oxidized developing agent, wherein the colored compounds are capable of diffusing in the photographic material during developing treatments and have their principal absorption in the main absorption wavelength region of the dye produced by the reaction of the coupler with the developing agent.

Abstract: A silver halide color photographic light-sensitive material comprising at least three silver halide emulsion layer units sensitive to blue, green and red light, respectively, at least one of the silver halide emulsion layer units having at least two layers which are different in sensitivity from each other and containing at least Coupler (A') described below and Coupler (B) described below, and one of said layers is in charge of color formation of the highest density portion in the characteristics curve of these layers and contains Coupler (B) described below which forms a dye having the maximum absorption wavelength different from a dye formed from Coupler (A) described below in an amount of at least 30 mol % of the total amount of the couplers included therein, wherein Coupler (A) denotes (i) a coupler which forms a dye having a maximum absorption in the wavelength range from 400 nm to less than (the maximum absorption wavelength of a dye formed from Coupler (A')+5) nm, when employed in a blue-sensitive lay

Abstract: A silver halide color photographic material which comprises a support having coated thereon 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, characterized in that the gradation of each of the blue-, green- and red-sensitive layers satisfies the following relation: ##EQU1## wherein .gamma..sub.B (10.sup.-4), .gamma..sub.G (10.sup.-4) and .gamma..sub.R (10.sup.-4) represent gradation of the blue-, green- and red- sensitive layers upon 1/10,000 second exposure, respectively and .gamma..sub.B (10.sup.-2), .gamma..sub.G (10.sup.-2) and .gamma..sub.R (10.sup.-2) represent those upon 1/100 second exposure, respectively, which provides a color picture having good color and tone reproduction in both regular and flash photography.

Abstract: A color photographic light-sensitive material comprising a support having provided thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer and at least one blue-sensitive silver halide emulsion layer is disclosed. The green-sensitive silver halide emulsion layer has a spectral sensitivity distribution whose wave-averaged wavelength of sensitivity ranges from 520 nm to 580 nm and the material further contains at least one silver halide emulsion layer which is light-responsive opposite to other layers and forms an image having substantially the same hue as that of the red-sensitive silver halide emulsion layer and whose spectral sensitivity distribution has a wave-averaged wavelength of sensitivity ranging from 500 nm to 560 nm. The material is excellent in both saturation of red and distinction of green colors.

Abstract: A silver halide color photographic material which comprises a support having thereon at least two silver halide light-sensitive layers having essentially the same color sensitivity but different speeds and a light-insensitive layer positioned adjacent to the highest-speed layer of said light-sensitive layers and containing a compound which reacts with the oxidation products of a color developing agent to form a diffusible development restraining compound or a precursor thereof. The photographic material provides a color image having excellent graininess and color reproduction and has excellent characteristics of development processing.

Abstract: A silver halide color photographic light-sensitive material is described, which is of ultra-high-sensitivity and is characterized by having the following light-sensitive layer unit (I), (II) or (III):Unit (I): a light-sensitive layer unit comprising: (a) a blue- and green-sensitive layer containing (a-1) a yellow image-forming coupler, (a-2) a magenta image-forming coupler, and (a-3) a cyan colored coupler; and (b) a green- and red-sensitive layer containing (b-1) a cyan image-forming coupler, (b-2) a magenta image-forming coupler, and (b-3) a yellow colored coupler.Unit (II): a light-sensitive layer unit comprising: (a) a blue- and red-sensitive layer containing (a-1) a yellow image-forming coupler, (a-2) a cyan image-forming coupler, and (a-3) a magenta colored coupler; and (b) a green- and red-sensitive layer containing (b-1) a magenta image-forming coupler, (b-2) a cyan image-forming coupler, and (b-3) a yellow colored coupler.

Abstract: A silver halide color photographic material is described comprising a support having thereon at least one red-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, and at least one blue-sensitive silver halide emulsion layer, with at least one of said light-sensitive silver halide emulsion layers containing a mono-dispersed silver halide emulsion, said color photogrphic material further comprising at least one auxiliary layer containing silver halide grains having substantially light-insensitivity and containing more than 75 mole % silver chloride.The silver halide color photographic material is improved in dependence of photographic characteristics with respect to the extent of stirring of a processing solution during development processing.

Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer is described, the color photographic light-sensitive material having at least one layer containing (1) at least one 2-equivalent magenta coupler represented by formula (I): ##STR1## wherein W represents a phenyl group substituted with at least one halogen atom, alkyl group, alkoxy group, alkoxycarbonyl group or cyano group; Y represents an acylamino group or an anilino group; and Z represents a group capable of being released upon coupling, and (2) at least one amine compound having at least two groups other than a hydrogen atom represented by formula (II): ##STR2##

Abstract: A color reversal light-sensitive material comprising a support having coated thereon at least a pair of silver halide emulsion layers having mutually different color sensitivities and consisting of an emulsion having a high silver/coupler ratio and an emulsion having a low silver/coupler ratio, the former ratio being greater by a factor of at least 5 than the latter ratio, and the latter emulsion being incorporated with a compound containing recurring units represented by the following General Formula (I): ##STR1## the substituents being defined within the specification. By including the compound of the general formula (I) within the particular emulsion layer which is highly susceptible to changes in sensitivity and maximum density, it is possible to prevent deterioration in color balance which has been found to be due to variation in the concentration of potassium bromide.

Abstract: A color reversal photographic light-sensitive material is disclosed. The material is comprised of a support base having thereon a silver halide emulsion layer, an organic compound and colloid grains of a metal or metal sulfide or silver halide grains the surface of which is previously fogged. The silver halide emulsion layer includes fine grains of silver halide particles having a particle size of 0.3.mu. or less. The fine grain particles are present in the emulsion in an amount in the range of about 30% to about 95% based on the total number of silver halide grains in the emulsion. The silver halide emulsion also includes coarse grains having a particle size of more than 0.3.mu.. The organic compound has a solubility product constant of 10.sup.-14 or less when forming a salt with a silver ion.

Abstract: There is disclosed a light-sensitive silver halide photographic material having at least one light-sensitive layer constituted of a plural number of silver halide emulsions provided on a support, and a non-light-sensitive intermediate layer containing a diffusion resistant coupler capable of forming a migratable color forming dye or a compound capable of forming a flow-out type coupling product provided at least adjacent to the silver halide emulsion layer with the highest light sensitivity among the plural number of silver halide emulsion layers on its support side.The light-sensitive material according to this invention exhibits excellent photographic characteristics such as sensitivity, graininess, sharpness, storability and gradation.

Abstract: The invention relates to multi-layered color photosensitive materials having a support, a red photosensitive silver halide emulsion layer containing a non-diffusible cyan coupler, a green photosensitive silver halide emulsion layer containing a non-diffusible yellow coupler and a blue photosensitive silver halide emulsion layer containing a non-diffusible magenta coupler coated on a support in the order recited and wherein the green photosensitive emulsion layer contains a compound capable of reacting with an oxidized color developing agent to release a development inhibiting substance.

Abstract: A silver halide color photographic material in which the photographic characteristics do not deteriorate when contacted with formaldehyde.

Abstract: In a silver halide color photographic material is disclosed. The material is comprised of a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer, and a red-sensitive silver halide emulsion layer. The granularity of the material is improved by incorporating a non-diffusible coupler capable of forming a properly smearing diffusible dye by causing a reaction with the oxidation product of a color developing agent and a colorless competing compound capable of capturing the oxidation product of a color developing agent in at least one of the foregoing silver halide emulsion layers.

Abstract: Photographic elements intended to generate dye images containing at least one colloidal silver layer and at least one hydroquinone antistain agent have been observed to suffer from random fog spotting, which can be reduced by incorporating a catalyst for the decomposition of hydrogen peroxide. The imagewise exposed elements when photographically processed and bleached of silver produce viewable dye images.

Abstract: A silver halide color photographic light-sensitive material comprises a support having thereon a light-sensitive silver halide emulsion layer and a light-insensitive layer is disclosed. The material contains within the light-sensitive layer or the light-insensitive layer a compound capable of reacting with and fixing formaldehyde gas, said compound being represented by the general formula (I) or (II): ##STR1## The compound capable of reacting with and fixing formaldehyde gas is loaded into an ultraviolet ray absorbing polymer latex comprised of a polymer having a repeating unit derived from a monomer represented by the general formula (III): ##STR2## The substituents within the above formulae are defined within the specification.

Abstract: A silver halide color photographic light-sensitive material comprising a support having coated thereon at least one silver halide emulsion layer, the color photographic light-sensitive material containing at least one kind of 2-equivalent magenta coupler represented by the following general formula (Ia): ##STR1## wherein Ar represents phenyl substituted with at least one halogen, alkyl, alkoxy, alkoxycarbonyl or cyano; Y represents acylamino or anilino; and Z represents a group capable of being released by coupling, and at least one kind of piperidine compound represented by the following general formula (II): ##STR2## wherein R.sub.1 represents hydrogen or alkyl; R.sub.2 represents alkyl, hydroxyalkyl, alkenyl alkynyl or benzyl; W represents hydrogen, alkyl, hydroxy, silyloxy, alkylamino, aryloxy, allyl, alkoxy, acylamino, sulfonamido, alkoxycarbonyl, carboxy, acyloxy or phosphoric acid oxy.

Abstract: A color photographic recording material, in which a precursor compound for a yellow mask coupler is contained in a green-sensitive layer or in a layer adjacent thereto and in which a blue-sensitive layer is arranged between this layer and the layer support, permits very good sharpness with satisfactory speed.

Abstract: Photographic material and process suitable for producing by diffusion transfer a color image and comprising on a support at least two differently spectrally sensitive negative working silver halide emulsion layers (FIG. 3, layers 12, 14 and 16) and having operatively associated with each of said emulsion layers a different non-diffusing dye providing compound that is initially immobile in an alkali-permeable colloid medium and wherefrom by reduction in alkaline medium a dye or dye precursor can be split off in diffusible state, wherein at least one of said negative working silver halide emulsion layers is associated in water-permeable relationship with a visible light-sensitive direct-positive emulsion layer (FIG. 3, layers 13 and 15) whereby interimage effects can be obtained.

Abstract: A photographic support material includes a base paper upon which a polyolefin coating is coated on at least one side. The coating includes titanium dioxide therein and at least one alkaline earth metal oxide in an amount of about 0.05-20% by weight of the coating, preferably calcium and/or magnesium oxide, and/or an alkaline earth metal carbonate in an amount of about 0.05-10% by weight of the coating, preferably calcium and/or magnesium carbonate.

Abstract: A silver halide color photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing at least one coupler represented by the following general formula (I): ##STR1## The substituents are disclosed in the specification. The silver halide color photographic light-sensitive material in which a specific class of 1-phenyl-3-anilono-4-phyenylthio-5-pyrazolone type two-equivalent magenta color image forming couplers and a specific class of 1-phenyl-3-pyrazolidone derivatives are used in association with each other can provide a magenta color image of high sensitivity without increasing the fog level. A method for developing the material is also disclosed.

Abstract: Production of masked positive color images by the silver dye bleach process, by exposure of a photographic material for the silver dye bleach process, silver developing, dye bleaching, silver bleaching and fixing, optionally the silver bleaching is carried out simultaneously with the dye bleaching and/or the fixing, in a single processing bath.

Abstract: A silver halide color photographic light-sensitive material is described comprising a support having thereon a photographic layer containing at least one coupler represented by formula (I) or (II) ##STR1## wherein Ar represents a phenyl group substituted with at least one substituent selected from a halogen atom, an alkyl group, an alkoxy group, an alkoxycarbonyl group and a cyano group; X represents a halogen atom or an alkoxy group; R.sub.1 represents a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an acylamino group, a sulfonamido group, a sulfamoyl group, a carbamoyl group, a diacylamino group, an alkoxycarbonyl group, an alkoxysulfonyl group, an aryloxysulfonyl group, an alkanesulfonyl group, an arylsulfonyl group, an alkylthio group, an arylthio group, an alkyloxycarbonylamino group, an alkylureido group, an acyl group, a nitro group, a carboxy group, or a trifluoromethyl group; R.sub.2 represents a halogen atom, a hydroxy group, an alkyl group, an alkoxy group or an aryl group; R.sub.

Abstract: The present invention is concerned with photographic products and processes employing certain pH-sensitive xanthene compounds as light-screening dyes, which compounds may be represented by the formulae ##STR1## wherein A and A', the same or different, are selected from ##STR2## each R is hydrogen or an electron-withdrawing group; each R.sup.1 is hydrogen or alkyl; each R.sup.2 is hydrogen, alkyl or an electron-withdrawing group; R.sup.3 is hydrogen or alkyl; R.sup.4 is alkyl; and n is 0 or 1 and which compounds in their colored, i.e., ring-opened form may be represented by the formulae ##STR3## wherein A, A', R.sup.3, R.sup.4 and n have the same meaning given above and Z is an anion.

Abstract: A color photographic element having special chromatic effects is disclosed, the element comprising a support and three emulsion layers. Special chromatic effects are obtained by particular combinations of the sensitizers and couplers contained in the emulsion layers, the combinations being different from conventional.

Abstract: Production of masked positive color images by the silver dye bleach process, by exposing a photographic material for the silver dye bleach process, silver developing, dye-bleaching, silver-bleaching and fixing, optionally, the step of silver-bleaching is carried out in a combined treatment bath together with dye-bleaching and/or fixing.

Abstract: Photographically useful compounds such as photographic reagents and photographic dyes are blocked with a grouping which, under alkaline conditions, is cleaved from the compound by an intramolecular nucleophilic displacement reaction. The compounds are resistant to unblocking under storage conditions, but are uniformly unblocked under conditions encountered during photographic processing.

Abstract: A process for producing a multicolor optical filter by exposing a multilayer color photographic material comprising:(1) a silver halide emulsion layer containing a colored coupler (1b) which has one of cyan, magenta or yellow colors and which forms a dye of one of the other two colors than the color of the colored coupler by a coupling reaction with the oxidation product of an aromatic primary amine color developing agent, and(2) a silver halide emulsion layer containing (i) a silver halide emulsion having a sufficiently high sensitivity that it can be exposed without exposing emulsion layer (1) and without increasing the color density in emulsion layer (1) and (ii) a colored coupler (2b) which has the same color as that of the dye formed by the coupling reaction of the colored coupler (1b) and which forms a cyan, magenta or yellow dye but not the color of the colored coupler (1b) or the color of the dye formed by the coupling reaction of the colored coupler (1b); the exposure is through a stripe or mosaic fi

Abstract: A photographic light-sensitive material is described comprising a support having thereon at least two silver halide photographic emulsion layers capable of forming a silver image upon treatment with an alkaline processing solution in the presence of a developing agent for silver halide after exposure, said material containing an interlayer positioned between said emulsion layers, wherein the improvement comprises said interlayer containing a complex which is formed from a mixture of hydroquinone derivatives having a solidifying point of 100.degree. C. or less, and which are different compounds from the developing agent for silver halide used in the treatment of the material, and a homopolymer or copolymer containing a recurring unit represented by formula (I): ##STR1## wherein R.sub.1 represents a hydrogen atom or a methyl group; Q represents of chemical bond, --COOR.sub.2 -- or --CONHR.sub.2 --; A represents a chemical bond or an oxygen atom; B represents a chemical bond or ##STR2## D represents --CH=CH).