Abstract: The present invention provides a photographic material comprising on a support photosensitive silver halide particles, and substantially light insensitive silver salt particles having a speed at least a factor 10 less under the same conditions of exposure and development of said photosensitive silver halide particles than said photosensitive silver halide particles and a releasing compound of formula (I) or (II) as specified in the claims capable of image-wise releasing sulphide or a sulphide under conditions for image-wise development of said photosensitive silver halide particles to silver. The present invention further provides a method for obtaining an image and a lithographic printing plate with said photographic material.

Abstract: Disclosed is a diffusion transfer color photographic material at least having a light-sensitive silver halide, a binder, a non-diffusive dye donor compound capable of releasing or forming a diffusive dye in correspondence or reverse correspondence with the reaction of reducing the silver halide to silver, and a non-diffusive filter dye, on a support, in which the filter dye is in the form of an emulsified dispersion along with the dye donor compound. The color separatability of the processed material is good and the discrimination of the formed image is also good. The raw film of the material is free from lowering of the filter effect after storage.

Abstract: The present invention provides a photographic material comprising on a support (i) photosensitive silver halide particles, (ii) substantially light insensitive silver salt particles having a speed at least a factor 10 less than said photosensitive silver halide particles under the same conditions of exposure and development of said photosensitive silver halide particles and (iii) a releasing compound capable of image-wise releasing under the conditions for image-wise development of said photosensitive silver halide to silver a chemical sensitizer, said chemical sensitizer rendering said substantially light insensitive silver salt particles developable. The present invention also provides a method for making an image therewith and a method for making a lithographic printing plate.

Abstract: A photographic donor material useful in forming continuous tone images in a silver salt diffusion transfer process is comprised of a support; a photosensitive silver halide emulsion layer in which the silver halide is at least 80% silver chloride and is substantially free of iodide; and, located between the photosensitive silver halide emulsion layer and the support, a silver halide emulsion layer which is non-photosensitive under the conditions in which the donor material is used.

Abstract: The method for producing a color filter of the present invention comprises the following steps: an inorganic active layer is formed on a transparent substrate, a first color is dyed on said inorganic active layer, a resist is formed on portions of the inorganic active layer other than portions where a second color is dyed, a decoloring treatment is conducted, the second color is dyed on the exposed inorganic active layer, the resist is removed, a resist is formed on portions of the inorganic active layer other than portions where a third color is dyed, a decoloring treatment is conducted, the third color is dyed on the exposed inorganic active layer, and then the resist is removed.

Abstract: A process of producing a viewable photographic image is disclosed wherein an imagewise exposed photographic element containing at least two silver halide emulsion layers capable of recording within the same region of the spectrum and having differing threshold sensitivities produces during photographic processing spectrally distinguishable images. Separate image records are obtained from the emulsion layers, and the image record corresponding to the photographically superior image is preferentially employed in producing a viewable image.

Abstract: Multicolor photographic elements are disclosed containing at least three dye image forming layer units. An enhancement of the speed-granularity relationship of a dye image is obtained when the corresponding dye image forming layer unit contains at least three superimposed emulsion layers. The two emulsion layers farther from the support contain silver bromoiodide emulsions, with the emulsion layer nearest the support containing a silver bromide or bromoiodide emulsion of up to 60 percent the iodide as a proportion of silver of the next overlying of the emulsion layers. The three emulsion layers each differ in speed from the next adjacent of the emulsion layers, with the fastest of the emulsion layers being located nearest the source of exposing radiation and being at least one half stop faster than the next adjacent layer and the slowest of the emulsion layers being located farthest from the source of exposing radiation and being at least one stop slower than the next adjacent layer.

Abstract: A silver halide photographic material having less roller marks and a rapid drying speed while maintaining a high sensitivity, and a development processing method therefor is disclosed. The silver halide photographic material comprising a support having, on at least one side thereof, two or more light-sensitive silver halide emulsion layers comprising a binder and a silver halide emulsion having a silver iodide content of 1 mol % or less, wherein the silver iodide content of the emulsion layer closest to the support is less than the silver iodide content of any of the emulsion layers further from the support than the emulsion layer closest to the support.

Abstract: The present invention provides a photographic material comprising on a support an image-receiving layer containing physical development nuclei, a photosensitive silver halide emulsion layer and a substantially light insensitive layer containing silver salt characterized in that said photosensitive silver halide emulsion layer contains silver halide particles having an average diameter of at least 0.6 .mu.m, said photosensitive silver halide emulsion layer being located between said image-receiving layer and said substantially light insensitive layer and said substantially light insensitive layer having a speed of at least a factor 10 less than said photosensitive silver halide emulsion layer. The present invention also provides a method for making an image therewith. The photographic material of the present invention is of high speed and can yield direct positive image with a low density in the non-image areas.

Abstract: A photographic recording material comprising a carrier and at least one photosensitive silver halide emulsion layer, a non-photosensitive layer and optional conventional intermediate and protective layers, characterised in that the photographic recording material (1) contains at least one silver halide emulsion layer having a silver iodide content .gtoreq.3 mol % and an average grain diameter .ltoreq.0.4 .mu.m, and (2), at least in one layer, contains a compound having the formula I ##STR1## in which R.sub.1, R.sub.2 and R.sub.3 denote hydrogen, an optionally substituted hydrocarbon radical, an optionally substituted alkylthio, alkyloxy or arylthio radical, an optionally substituted amino group, OH or halogen or R.sup.1 and R.sup.2 together denote the radical for completing a carbocyclic or heterocyclic ring,R.sub.4, R.sub.5 denote hydrogen, an optionally substituted alkyl or aryl radical, or an optionally substituted heterocyclic radical,R.sub.6, R.sub.

Abstract: A color photographic silver halide negative working duplicating element comprising a support bearing, in order from the support, at least one red-sensitive photographic silver halide emulsion layer package comprising at least one cyan image-dye forming coupler that is capable upon exposure and processing of forming a cyan image dye that absorbs in the range of the original image; at least one green-sensitive photographic silver halide emulsion layer package comprising at least one magenta image-dye forming coupler that is capable, upon exposure and processing, of forming a magenta image dye that absorbs in the range of the original image; and at least one blue-sensitive photographic silver halide emulsion layer package comprising at least one yellow image-dye forming coupler that is capable upon exposure and processing of forming a yellow image dye that absorbs in the range of the original image.

Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic element that is especially useful in the field of graphic arts is comprised of a support, an imaging layer containing doped silver halide grains with a mean grain size of less than 0.12 micrometers, and a print-out layer containing doped silver halide grains with a mean grain size in the range of from 0.14 to 0.4 micrometers. The element utilizes very slow speed emulsions which render it capable of being handled in room light and is able to print-out a visible image on normal exposure and develop to full density upon being processed in conventional developing solutions.

Abstract: A light-sensitive silver halide color photographic material is disclosed. The light-sensitive material comprises a support and a silver halide emulsion layer and a non-light-sensitive hydrophilic colloid layer provided on the support. The emulsion layer comprises a mixture of at least two kinds of silver halide emulsions which different from each other in sensitivity. The emulsion layer contains a magenta coupler represented by Formula II and the non-light-sensitive layer contains a compound represented by formula II: ##STR1## wherein Ar is an aryl group; Y is a hydrogen atom or a substituent capable of releasing upon reaction with the oxidation product of a color developing agent; X is a halogen atom, an alkoxy group or an alkyl group; n is an integer of 0 to 4, Xs are the same or different when n is 2 or more; R is a strait chain or branched alkyl group having 1 to 20 carbon atoms, ##STR2## wherein R.sub.1 and R.sub.

Abstract: A light sensitive silver halide photographic material for the use of X-ray photography, wherein the effective contrast characteristics of the photographic material can be changed as required for the type image being exposed, as a function of the number and disposition of fluorescent intensifying screens. The photographic material has a support carrying first and second emulsion layers on each side thereof. The first layer has a maximum density and sensitivity higher than that of the second layer; the second layer has a density of not more than 0.2 when exposed from the side of the first layer with sufficient irradiation to give the first layer a density of 1.0; and the slope connecting two points corresponding to densities of 0.8 and 1.3 above the fog or baseline on a characteristic curve of the first layer is more than the slope of a line connecting two points of 0.3 and 0.5 above the fog or baseline on a characteristic curve of the second layer.

Abstract: A color photographic recording material with a reflective support which contains a spectrally sensitized silver halide emulsion containing at least one sensitizer for the spectral region B in a layer free from color coupler adjacent at least one dye-producing silver halide emulsion layer sensitized for the spectral region A, the sensitivity of the spectrally sensitized silver halide emulsion of the layer free from color coupler being lower by 0.6 to 2.5 log H units than the sensitivity of the sensitized silver halide emulsion of the dye-producing silver halide emulsion layer, is distinguished by an extended gradation range in the region of the maximum densities and, hence, by distinctly improved fine detail resolution at high densities.

Abstract: A color photographic recording material is described which comprises a silver halide emulsion layer containing a coupler compound capable of releasing a development accelerator or fogging agent and which material also contains silver halide grains which are more developable than the grains in the silver halide emulsion layer.

Abstract: A silver halide light-sensitive material is disclosed, which has high light-sensitive speed and improved gradation and sharpness. The light-sensitive material comprises a paper substrate which has polyolefin resin layers on both sides thereof, and a silver halide emulsion layer provided on one of the polyolefin layers. The polyolefin layer on which the silver halide emulsion layer to be provided contains white pigment particles in an amount of not less than 13 weight percent of the polyolefin resin contained in the polyolefin layer, and surface of the polyolefin layer on which the emulsion layer to be provided has a di-dimensional arithmetical mean deviation of the profile, SRa, of not larger than 0.14 .mu.m, and the silver halide emulsion layer comprises at least two kinds of monodispersed silver halide emulsions each having a silver chloride content of not less than 90 mole % and being different from each other in speed.

Abstract: A silver halide color photographic light-sensitive material is disclosed. The light-sensitive material comprises a support, having thereon a red sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, wherein the red-sensitive comprises a low-speed red-sensitive silver halide emulsion sublayer, a medium-seed red-sensitive silver halide emulsion sublayer and a high-speed red-sensitive silver halide emulsion layer provided in this order from the support, and sensitivities S.sub.600, S.sub.620, S.sub.640, S.sub.660 and S.sub.680 of the medium speed red-sensitive emulsion sublayer which are each determined as reciprocal of the exposure amount of light of wavelength of 600 nm, 620 nm, 640 nm, 660 nm and 680 nm necessary for forming an image having a density of fog+0.1 in the medium speed red-sensitive emulsion sublayer, respectively, satisfy the following relation;0.5S.sub.640 <S.sub.600 < 0.9S.sub.640,0.7S.sub.640 <S.sub.

Abstract: An asymmetrical radiographic element is disclosed comprised of a transparent film support, green sensitized silver halide emulsion layer units of differing sensitometric characteristics coated on opposite sides of the film support, and a processing solution decolorizable means for reducing crossover to less than 10 percent. The element is positioned between intensifying screens and mounted in a cassette for exposure to X-radiation. A processing solution decolorizable pentamethineoxonol dye with insignificant absorption at 550 nm is incorporated into an overcoat layer to distinguish which of the emulsion layer units is positioned nearest a source of X-radiation during exposure.

Abstract: Novel tabular grain emulsions and a process for their preparation are disclosed in which silver bromoiodide tabular grains account for greater than 97 percent of total grain projected area and the coefficient of variation of the total grain population is less than 25 percent. This is achieved by forming in a first reaction vessel and transporting to a second reaction vessel a population of silver bromide grain nuclei in the form of regular octahedra having an equivalent circular diameter of less than 40 nanometers and a coefficient of variation of less than 50 percent and in the second reaction vessel converting the grain nuclei into a grain population containing parallel twin planes in more than 90 percent of the grains, so that upon further growth silver bromoiodide tabular grains of desired properties can be realized.

Abstract: A light-sensitive silver halide photographic material is disclosed. The light-sensitive material comprises a support and two photographic layers each being provided on both sides, side A and side B, of the support and comprising a silver halide emulsion layer and a hydrophilic colloid layer wherein the light-sensitive material satisfies the relationship between sensitivities sA, sB and sA' thereof represented by the following expressions I and II, and an organic substance remained in the photographic layers after processing is an amount of not more than 90% by weight of the organic substance contained in the photographic layers before processing of the light-sensitive material;I: sA/sA'>4.0II: sA/sB=1.

Abstract: Method for making lithographic aluminium offset printing plates according to the DTR-process by photo-exposing a photosensitive monosheet layer assemblage comprising a hydrophilic aluminium foil, a water-swellable intermediate layer comprising a non-proteinic hydrophilic film-forming polymer, and a silver halide emulsion layer, applying an aqueous alkaline solution thereto in the presence of a developing agent and a silver halide solvent, allowing to reduce the photo-exposed silver halide, allowing the unreduced silver halide or complexes thereof to diffuse to said aluminium foil to form a silver image thereon, and separating said emulsion layer and said intermediate layer from the imaged aluminium foil. The invention also relates to the photosensitive monosheet layer assemblage used for making such printing plates.

Abstract: A silver halide color photographic light-sensitive material of which the color reproducibility and printing suitability are kept improved against the variation of photographing conditions, such as a change in light source, is disclosed. The photographic material comprises a support and provided thereon a red-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a blue-sensitive silver halide emulsion layer, wherein at least one of said emulsion layers is of three-layer structure comprising a low-speed elemental emulsion layer, a medium-speed elemental emulsion layer and a high speed emulsion layer arranged in this sequence from the side facing the support, and a maximum color density of said medium-speed emulsion layer is not more than 0.35.

Abstract: Spin castable mixtures are provided which are useful for applying onto photoresist surfaces to produce a contrast enhancement layer employing .alpha.-alkyl-N-alkyl nitrones in combination with an inert organic binder and solvent. The .alpha.-alkyl-N-alkyl nitrones can be used with 200-300 nanometers UV light.

Abstract: A color diffusion transfer light-sensitive material comprising a support having thereon light-sensitive silver halide emulsions and an electron donor in combination with reducible dye providing compounds each of which releases a diffusible dye when reduced and further a silver halide emulsion having substantially no light sensitivity in addition to the light-sensitive silver halide emulsions.

Abstract: A silver halide photographic material having on a support a first light-sensitive layer containing a light-sensitive silver halide emulsion and a second light-sensitive layer containing a light-sensitive silver halide emulsion, wherein the first light-sensitive layer and/or a hydrophilic colloid layer contains a hydrazine compound, the second light-sensitive layer contains a redox compound capable of releasing a development inhibitor by oxidation, and the sensitivity of the first light-sensitive layer is higher by 0.2 to 1.0 than that of the second light-sensitive layer.

Abstract: A method of image formation comprising imagewise exposing a silver halide photographic photosensitive material comprising a support having thereon at least two silver halide emulsion layers and which contains a hydrazine compound in the emulsion layers or in another hydrophilic colloid layer wherein the photographic speed of the emulsion layer on the side furthest from the support of the above mentioned silver halide layers is higher by 0.1 to 0.4 logE than the photographic speed of the emulsion layer which is closest to the support, through the support, and developing the imagewise exposed photosensitive material, whereby a high contrast negative image of a gamma at least 8 is obtained.

Abstract: Radiographic elements are disclosed with silver halide emulsion layer units coated on opposite sides of a film support. The radiographic elements are constructed to reduce crossover during exposure by intensifying screens to minimal levels. To permit the minimal crossover radiographic elements to be employed with varied intensifying screens, one of the silver halide emulsion layer units over an exposure range of at least 1.0 log E exhibits an average contrast of from 0.5 to <2.0 and point gammas that differ from the average contrast by less than .+-.40% and the second silver halide emulsion layer unit exhibits a mid-scale contrast of at least 0.5 greater than the average contrast of the first silvert halide emulsion layer unit.

Abstract: The image of an object with opaque and transparent regions having a contrast less than the contrast threshold of a layer of photoresist when light of a predetermined wavelength to which the photoresist is sensitive is passed through the object and onto the layer of photoresist is enhanced in contrast by the provision of a contrast enhancing layer contiguous to the surface of the photoresist to a value above the contrast threshold of the photoresist. The contrast enhancing layer is constituted of an aryl nitrone compound mixed with a suitable binder.

Abstract: A novel heat developable light-sensitive material is disclosed, comprising light-sensitive silver halide emulsion layers on a paper support, wherein at least one subbing layer capable of inhibiting fog is provided interposed between the undermost layer among said light-sensitive silver halide emulsion layers and said paper support. In a preferred embodiment, the subbing layer comprises a binder and at least one material capable of inhibiting fog.

Abstract: A double coated radiographic element is disclosed which exhibits a crossover of less than 5 percent and which is provided with a silver halide emulsion layer unit on one side of its transparent film support that is at least twice the speed of the silver halide emulsion layer unit on the opposite side of the film support.

Abstract: A double coated radiographic element is disclosed which exhibits a crossover of less than 5 percent and which is provided with a first silver halide emulsion layer unit on one side of its transparent film support that exhibits an average contrast of less than 2.0 and a second silver halide emulsion layer unit on the opposite side of the silm support that exhibits an average contrast of at least 2.5.

Abstract: A silver halide color photographic light-sensitive material comprising a support having arranged thereon at least two each of red-sensitive layers, green-sensitive layers and blue-sensitive layers, wherein, with respect to each of the red-sensitive layers, the blue-sensitive layers and the green-sensitive layers, there are not less than two silver halide layers having different sensitivities, said material satisfying the following four requirements:a. the highest blue-sensitive silver halide emulsion layer (BH) is arranged to serve as the silver halide emulsion layer in the farthest position from the support;b. the highest green-sensitive silver halide emulsion layer (GH) and the highest red-sensitive silver halide emulsion layer (RH) are interposed between the highest blue-sensitive silver halide emulsion layer (BH) and a lower blue-sensitive silver halide emulsion layer (Bh);c.

Abstract: A silver halide color photographic light-sensitive material is described, containing: (1) a non-diffusing coupler forming a dye on reacting with an oxidation product of a color developing agent, said dye having diffusibiity of the extent that it exhibits controlled smearing; and (2) a DIR compound releasing a diffusing development inhibitor or its precursor through a coupling reaction. This light-sensitive material is improved in both granularity and sharpness, and has high sensitivity.

Abstract: A direct positive photographic light-sensitive material is disclosed which comprises at least two direct positive emulsion layers having the same color sensitivity, wherein at least one hydrophilic colloid layer is provided between the direct positive emulsion layers. A direct positive photographic light-sensitive material having a high graininess, a soft tone, and a high picture quality can be obtained.

Abstract: Using a color photographic negative recording material which contains a most sensitive, a medium-sensitive and a least sensitive silver halide part layer for recording light from at least one of the spectral ranges of red, green and blue, at least one of the two more sensitive part layers containing a DIR coupler and the most sensitive partial layer and the least sensitive part layer containing a color coupler which couples faster than the color coupler in the medium-sensitive part layer by a factor of at least 1.5, the sharpness can be improved without impairing the color grain.

Abstract: An apparatus for producing a full color image including a photosensitive element having three silver halide emulsion layers, at least two of which are sensitized to radiation in the infrared region of the electromagnetic region, and three laser diodes for exposing the photosensitive element. The three silver halide emulsion layers are differentiated from each other by photographic speed, filter layers between the emulsion layers or a combination of both speed differences and filter layers.

Abstract: Siliver halide photographic elements are disclosed comprised of blended emulsions. An improved relationship between speed and granularity can be realized when a blended silver bromide or bromoiodide emulsion is comprised of a high aspect ratio tabular grain emulsion containing at least one spectral sensitizing dye and a low aspect ratio grain emulsion.

Abstract: A direct positive photo-sensitive material is described, wherein the material comprises at least one internal latent image-type silver halide emulsion layer containing core/shell-type silver halide grains consisting of substantially cubic or tetradecahedral grains mainly of the face (100) and being spectrally-sensitized with at least one sensitizing dye having the following formula: ##STR1## wherein R.sup.1 and R.sup.2 represent each a lower alkyl group substituted with a sulfonato, carboxyl or hydroxyl group, at least one of R.sup.1 and R.sup.2 being a sulfonatoalkyl group, R.sup.3 represents a hydrogen atom or a lower alkyl or substituted or unsubstituted phenethyl group, R.sup.4 represents a chlorine atom, a methoxy or ethoxy group or a hydrogen atom, R.sup.5 represents a chlorine atom or a phenyl, alkoxy or alkyl group, M.sup.+1 represents a cationic residue, m represents 0 or 1 with the proviso that when an inner salt is formed, m is 0.

Abstract: A light-sensitive material package unit having an exposure function is disclosed, in which said light-sensitive material comprises a support having provided thereon at least one red-sensitive silver halide emulsion layer containing at least one cyan coupler, at least one green-sensitive silver halide emulsion layer containing a magenta coupler, and at least one blue-sensitive silver halide emulsion layer containing a yellow coupler; at least one of said light-sensitive emulsion layers is composed of at least two layers being substantially the same in color sensitivity and different in sensitivity; and said light-sensitive emulsion layer composed of at least two layers contains a compound represented by formula (I)A--L.sub.1).sub.b Z.sub.1 (I)wherein A represents a component capable of releasing --(L.sub.1).sub.b Z.sub.1 upon reacting with an oxidation product of a color developing agent; L.sub.1 represents a timing group; Z.sub.

Abstract: A conventional silver halide color photographic material is described, containing a coupler having a dye moiety having the maximum absorption wave length shifted to a short wave length by a linkage which is cleaved directly or through a timing group by a coupling reaction with the oxidation product of a developing agent and forming a compound or the precursor thereof (compound A) having a dye moiety having the maximum absorption wave length before shifting as the result of the above-described reaction and a compound capable of fixing the hue of the compound A at a long wave length and/or capable of immobilizing the compound A in the photographic layer.

Abstract: The sensitivity of color photographic negative films may be increased without loss of color quality or sharpness by applying at least one panchromatically sensitized, highly sensitive and black-coupling layer as uppermost, additional light sensitive and dye-forming layer on the side of the film facing the object and including in the negative material sufficient DIR-Coupler to produce an interimage effect of .gtoreq.10% in the yellow region, .gtoreq.25% in the magenta region and .gtoreq.15% in the cyan region.

Abstract: A process for producing a continuous tone color image comprising providing a light sensitive photographic element comprising a substrate bearing three imaging media coated thereon, said imaging media comprising:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable of forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing,each imaging medium having a maximum spectral sensitivity at a wavelength different from that of the maximum spectral sensitivity of the other imaging media within the range 550 to 900 nm, the sensitivities at the wavelength of maximum spectral sensitivity of the media decreasing in order from the medium of shortest wavelength maximum spectral sensitivity to the medium of longest wavelength maximum spectral sensitivity, the difference in said sensitivities between the media of shortest and longest wavelength maximum spectra

Abstract: A silver halide photographic material is disclosed, which has high image quality in addition to high sensitivity. The photographic material comprises a support and at least one silver halide light-sensitive emulsion layer containing a compound being capable of splitting off a diffusible development-inhibitor or a precursor thereof upon a reaction with an oxidized product of a color developing agent. At least one of the silver halide light-sensitive emulsion layer layer and a layer adjacent to the light-sensitive emulsion layer contains a silver halide emulsion comprising a silver halide grain having an internal fog nucleus.

Abstract: A radiation-sensitive element suitable for the preparation of half-tone color proofs comprising a substrate bearing at least four separate positive acting imaging media coated thereon, said imaging media including:(1) an imaging medium capable of forming a yellow image upon imagewise exposure and processing,(2) an imaging medium capable fo forming a magenta image upon imagewise exposure and processing,(3) an imaging medium capable of forming a cyan image upon imagewise exposure and processing, and(4) an imaging medium capable of forming a black image or a balancing black image upon imagewise exposure and processing,each imaging medium (1), (2) and (3) having a maximum spectral sensitivity at a wavelength different from that of the maxiumu sensitivity of the other imaging medium of (1) to (3), the imaging medium (4) having spectral sensitivity at each of the wavelengths of the maximum sensitivity of the other imaging media.

Abstract: This invention relates to a silver halide emulsion containing halogen conversion-type silver halide grains and light sensitive material comprising such as emulsion. The grains are selected from the group consisting of halogen conversion-type silver chlorobromide grains, halogen conversion-type silver iodobromide grains and halogen conversion-type chloroiodobromide grains, the grains having substantially no surface sensitivity, the average grain size thereof being not more than 0.30 micron, and the grains containing from 0 to 4 mol % of silver iodide.The grains have particularly high ability to trap iodide ions so that light-sensitive material comprising the emulsion containing the grains have law dependence on formulation of developing solution and improved properties in connection with sensitivity, fog, gamma, maximum density.

Abstract: A silver halide photographic material for use in a bright room is disclosed comprising a support having thereon at least two silver halide emulsion layers, each of the emulsion layers having a different sensitivity and comprising silver chloride grains or silver chlorobromide grains having at least about 80 mol % silver chloride, each of the silver halide emulsions layers containing from about 1.times.10.sup.-7 mol to about 1.times.10.sup.-4 mol of a rhodium salt per mol of silver, wherein the sensitivity of the lower emulsion layer (the emulsion layer coated nearer to the support) is higher than the sensitivity of the upper emulsion layer (the emulsion layer coated farther from the support) and at least one of the silver halide emulsion layers or different hydrophilic colloid layers contains a hydrazine derivative and at least one of the silver halide emulsion layers of different hydrophilic colloid layers contains a dry compound having a .sup..lambda. max of from about 400 nm to about 550 nm.

Abstract: A silver halide color photographic material improved in image quality such as sharpness and graininess is disclosed. The silver halide color photographic material is comprises support having thereon photographic component layers comprising at least two silver halide emulsion layers, adjacently arranged to each other, having the same color sensitivity and different speed from each other. In this photographic material the highest speed layer among these emulsion layers contains a DIR compound capable of releasing a diffusible development inhibitor or a diffusible compound capable of releasing a development inhibitor, and the total thickness of the silver halide emulsion layers is within the range of from 1.5 .mu.m to 5 .mu.m, and the silver halide emulsion layers are allowed to have the interposition of a non-light-sensitive intermediate layer.

Abstract: An asymmetric radiographic element is disclosed comprised of a transparent film support, silver halide emulsion layer units of differing sensitometric characteristics coated on opposite sides of the film support, and a processing solution decolorizable means for reducing crossover to less than 10 percent. The radiographic element is positioned between intensifying screens and mounted in a cassette for exposure to X-radiation. A feature is included for ascertaining which of the emulsion layer units is positioned nearest a source of X-radiation during exposure.

Abstract: A process for manufacturing a silver halide color photographic material is disclosed. The photographic material comprises a blue light-sensitive layer-unit, a green light-sensitive layer-unit and a red light-sensitive layer-unit in which at least one of the light-sensitive layer-units comprises two or three silver halide emulsion layers being substantially the same in spectral sensitivity and different in speed from each other.