Abstract: The present invention provides visible light sensitive and ultraviolet (UV) light sensitive composition for DNA transfer comprising acid sensitive polyacetals developed as DNA/RNA delivery agents, a photoacid generator and optionally a photosensitizer.

Abstract: A silver salt photothermographic imaging material is disclosed, comprising a light-sensitive aliphatic acid silver salt, a light-sensitive emulsion containing light-sensitive halide grains, a reducing agent for silver ions, a binder and a cross-linking agent, wherein the cross-linking agent is an aromatic polyisocyanate compound and the photothermographic material further comprises a compound selected from compounds represented by the following formulas.

Abstract: The present invention provides a photothermographic material including a support having disposed on one surface of the support, at least one image forming layer containing a photosensitive silver halide, a non-photosensitive organic silver salt, a reducing agent, a development accelerator and a binder, and at least one protective layer on the identical surface, wherein 50% by mass or more of the binder contained in the image forming layer is a water soluble binder, and the reducing agent is contained in the form of a solid dispersion.

Abstract: A photothermographic material is disclosed, comprising on a support an organic silver salt, a light-sensitive silver halide, a reducing agent, and a compound represented by the following formula, 6-aryl-2,4-bis(tribromomethyl)-s-triazine or a 6-heteroaryl-2,4-bis(tribromomethyl)-s-triazine.

Abstract: A heat developable photosensitive material having on a support a non-photosensitive sliver salt, a photosensitive sliver halide, and a binder, which has an image forming layer containing the photosensitive sliver halide and comprises cyclic ketone or cyclic imine compound having a specific structure in combination with a nucleation agent on the side that the image forming layer is formed. This heat developable photosensitive material is an excellent high contrast sensitive material having a good stability.

Abstract: A photographic assemblage comprising a silver halide photographic light-sensitive element comprising at least one sulfur and gold sensitized silver halide emulsion layer, said element comprising chlorinated s-triazine hardeners and photographically useful chemical compounds containing cyano groups, and a closed vessel in which the element is closed and stored at a constant relative humidity, is protected against HCN gas, which may evolve from photographic addenda included in the light-sensitive element to cause fog in the silver halide emulsion layers, by the addition of a palladium compound, in a silver halide emulsion layer and/or an adjacent layer thereto, as scavenger for HCN gas released from the element.

Abstract: A tabular silica dispersion is disclosed, which is obtained by mixing a tabular silica, gelatin, a cyclodextrin and a compound capable of crosslinking gelatin. Silver halide photographic materials are also disclosed, in which the tabular silica dispersion is incorporated into a silver halide emulsion layer or a light-insensitive hydrophilic colloidal layer.

Abstract: The present invention provides a silver halide photographic material and an image forming method for obtaining a monochrome image using a dye image even if it is treated with a color developer free of benzyl alcohol; a photographic property of the monochrome image is less deteriorated by a toxic gas such as formaldehyde and an increase in sensitization and fog with time is improved.

Abstract: The present invention is a silver halide photographic material including at least one layer which contains; a polymer comprising as constituent components thereof a repeating unit having a photographically useful group and at least one repeating unit having an imidazole group; and a compound having at least one functional group which reacts with an imidazole group and at least one other functional group capable of reacting with an imidazole group and a primary amine group, the amount of the compound being sufficient to insure adequate fixation of said polymer.

Abstract: A silver halide color photographic light-sensitive material comprising a support having on one surface thereof at least one light-sensitive silver halide emulsion layer and at least one light-insensitive layer, wherein the silver halide color photographic light-sensitive material contains at least one compound selected from the compounds represented by formulae (A-I), (A-II) and (A-III) and a coupler represented by formula (m).

Abstract: A silver halide photographic light sensitive material is disclosed which comprises a support and provided thereon, a hydrophilic colloid layer comprising at least one silver halide emulsion layer and at least one non-light sensitive layer, the hydrophilic colloid layer being hardened with at least one hardener selected from the group consisting of a carboxyl active hardener, a vinylsulfone type hardener, an epoxy type hardener and a triazine type hardener, wherein a silver halide emulsion layer closest to the support of the silver halide emulsion layers contains a dye in the form of dispersed solid particles or a non-light sensitive layer closest to the support of the non-light sensitive hydrophilic colloid layers contains a dye in the form of dispersed solid particles, and the thickness swell percentage of the photographic component layer is 10 to 100%.

Abstract: A silver halide color photographic material is described, which comprises a support having thereon at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one red-sensitive silver halide emulsion layer and at least one light-insensitive layer, wherein one or more of the above layers contains at least one compound represented by formula (A-I), (A-II), (A-III), (A-IV) or (A-V) and one or more of the above layers contains at least one compound represented by formula (H): ##STR1##

Abstract: An improved method of hardening a hydrophilic colloid is detailed. The hardening results in a stronger matrix and less water pickup. These and other advantages are obtained by hardening with a combination of at least one hardener chosen from Formula I either alone or in combination with at least one hardener chosen from Formula II: ##STR1## The substituents are defined.

Abstract: This invention is related to improved hardeners for proteinaceous materials. More specifically this invention is related to improved imidazolium hardeners for crosslinking a proteinaceous material for use in a photographic film.

Abstract: Imaging elements, such as photographic, electrostatographic and thermal imaging elements are comprised of a support, an image-forming layer and an electrically-conductive layer comprised of a vanadium pentoxide colloidal gel, a polyesterionomer binder and a methoxyalkylmelamine. The electrically-conductive layer exhibits electrical conductivity which is both process-surviving and essentially independent of humidity.

Abstract: A silver halide color photographic material comprising a support having 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, in which the silver halide color photographic material comprises at least one compound selected from the group consisting of the compounds represented by one of formulas (A-I) to (A-V); and 60% or more of the total projected area of silver halide grains contained in at least one of the light-sensitive silver halide emulsion layers is occupied by tabular grains having an aspect ratio of 2 or more, and the tabular grains have a dislocation line number of 10 or more per one grain.

Abstract: Hardeners for hydrophilic colloid defined by the formula: ##STR1## The hardeners are for crosslinking proteinaceous materials for use in photographic films.

Abstract: The present invention relates to a silver halide photographic material comprising a support having coated thereon at least one silver halide emulsion layer and at least one light-insensitive hydrophilic colloid layer wherein at least one of said layers comprises a gelatin hardening agent and said hydrophilic colloid layer comprises an alkali-insoluble acrylic polymer particles having an average particle size of from 0.5 to 6 .mu.m and wherein at least 95% by number of said polymer particles have a particle size within .+-.15% of the average particle size.

Abstract: There is disclosed a color photographic material and a method for forming a color image using the said photographic material. The color photographic material has at least three dye-forming coupler-containing layers and comprises a reflective support covered with a water-resistant resin composition containing a white pigment and a thermoplastic resin, an emulsion layer that has a silver chloride content of 95 mol % or more and contains silver chlorobromide grains or silver chloride grains containing specified metal ions, and the color photographic material being hardened by a specified compound.

Abstract: A silver halide photographic light-sensitive material is disclosed. The light-sensitive material comprises a support having thereon a photographic layer including a silver halide emulsion layer wherein the outermost surface of said photographic layer has a pH value of from 5.4 to 5.9 and said silver emulsion layer contains a compound represented by the following formula I; ##STR1## wherein R.sub.1 is an alkyl group, a cycloalkyl group or an aryl group; R.sub.2 is an alkyl group, a cycloalkyl group, an acyl group or an aryl group; R.sub.3 is a substituent, n is 0 or 1; X.sub.1 is a substituent capable of splitting off upon coupling reaction with the oxidation product of a color developing agent; and Y.sub.1 is an organic group. The light-sensitive material is excellent in stability during storage and gives stable photographic characteristics even when pH value of developer is varied.

Abstract: A silver halide color photographic material is disclosed comprising a support comprising a base material and a water resistant resin layer containing titanium dioxide particles in an amount of at least 14% by weight of the water resistant resin layer, said support having thereon at least one blue-sensitive silver halide emulsion layer, at least one green-sensitive silver halide emulsion layer, at least one red-sensitive silver halide emulsion layer on the same side of the support as the water resistant resin layer, said photographic material having an optical reflection density of at least 0.70 at 680 nm, said photographic material containing at least one compound represented by formula (I) or (II) and at least one compound represented by formula (III), the total layer thickness of the constituent photographic layers provided on the support after immersing in a color developing solution for at least 60 seconds is at least 1.

Abstract: A photosensitive silver halide photographic material having a support and provided thereon, photographic component layers including at least one silver halide emulsion layer is disclosed. At least one silver halide emulsion layer comprises silver halide grains having silver chloride content of not less than 90 mol %; at least one of the photographic component layers comprises a specific dye excellent in decolorization and capable of improving sharpness; at least one silver halide emulsion layer comprises a mercapto compound for improving aging stability of silver halide emulsions; a photographic component layer is hardened with cyanuric chloride series hardeners for improving fog.

Abstract: The present invention provides a siliver halide photographic photosensitive material which comprises a base, at least a silver halide emulsion layer provided on the base and at least a back coat layer comprising a gelatin containing a polymer mainly composed of styrenesulfonic acid provided on another side of the base wherein said back coat layer additionally contains a surface active agent represented by the following formula [I] and is hardened with a triazine. ##STR1## whererin n is a natural number of 1-20, M represents a hydrogen atom or an alkali metal, and R represents an alkyl group of 5-15 carbon atoms, or ##STR2## in which R.sub.1 represents an alkyl group of 5-15 carbon atoms and R.sub.2 represents an alkyl group of 1-3 carbon atoms, a hydrogen atom or a halogen atom. Said back coat layer is excellent in antistatic properties, adhesion to a base and drying properties.

Abstract: A light-sensitive silver halide photographic material having a support and, provided thereon, photographic component layers including at least one light-sensitive silver halide emulsion layer containing silver halide grains having a silver chloride content of not less tha 90 mole % and having been subjected to gold sensitization, said photographic component layer containing a gelatin of which isoelectric point being 4.0 to 5.0 and the film pH of said photographic component layer being not more than 6.0.

Abstract: Disclosed is a gelatino-silver halide photographic material which contains a dye of the following formula (I), described in detail herein and at least one hardener. ##STR1## The dye is decolored by photographic processing and does not exert any adverse influence on the photographic characteristics, especially the spectral sensitizability, of the photographic material. The material exhibits excellent storage stability and has a negligible moisture-dependency in exposure.

Abstract: Disclosed is a direct positive light-sensitive photographic material having at least one silver halide emulsion layer containing inner latent image type silver halide grains not previously fogged, which gives a direct positive image after image exposure by surface development after application of fogging treatment or while applying fogging treatment, wherein the inner latent image type silver halide grains comprise substantially silver chloride, and the silver halide emulsion layer or a hydrophilic colloid layer adjacent thereto contains at least one active halide type or active vinyl type gelatin hardener, and at least one compound represented by the formula (I) or (II) described in the specification. This direct positive light-sensitive silver halide photographic material is particularly excellent in stability with lapse of time.

Abstract: A silver halide photographic light-sensitive material comprising a support bearing thereon at least one silver halide emulsion layer containing a dye-forming coupler and a compound represented by Formula [I] as defined in the specification. The light-sensitive material further comprises at least one silver halide emulsion layer containing silver halide grains having a silver chloride content of not less than 90 mole percent and a compound represented by Formula [S] as defined in the specification.The presence of the compounds of Formula [I] and Formula [S] provide a material having a suitable contrast and having additional advantages such as excellent BF contamination resistance and pH variation resistance.

Abstract: A silver halide photographic material comprises a support having thereon at least one light-sensitive silver halide emulsion layer, at least one layer of said material comprising gelatin crosslinked with a crosslinking agent, said crosslinks being capable of being cleaved on reduction.

Abstract: The invention describes a photosensitive composition, a copying material prepared from this composition, and a process for the production of negative relief copies, in which a photosensitive composition or a photosensitive material, respectively, is used, that comprises a support and a photosensitive composition coated onto the suppoort and comprising a photosensitive 1,2-quinonediazide or a photosensitive mixture, a binder that is soluble in aqueous-alkaline solutions and an s-triazine of the general formula I ##STR1## wherein R denotes akyl, allyl, alkoxy, alkoxycarbonyl, alkoxycarbonylakkenyl, each having from 1 to 4 carbon atoms in the alkyl or alkenyl group, aryloxy, halogen or a nitro group andn stands for 1 to 3. The material is exposed imagewise under a negative original, thereafter heated and, after cooling, exposed without an original or optionally under a positive original, then developed by means of an aqueous-alkaline developer and optionally baked.

Abstract: A method for forming an image comprising the steps of:(a) imagewise exposing a light-sensitive silver halide photographic material comprising a support having provided on at least one surface thereof a light-sensitive silver halide emulsion, at least one of an active halogen hardening agent and a bisvinylsulfone hardening agent, and a slightly water-soluble basic metallic compound; and(b) developing said exposed material with a developer solution containing a compound capable of reacting with said basic metallic compound to release a base.

Abstract: A silver halide photographic material is capable of super-rapid processing with the total time of 20 to 60 minutes and is high in sensitivity, low in fogginess and excellent in pressure resistance and graininess. The photographic material is comprises a support bearing a hydrophilic colloial layer including at least one light sensitive silver halide emulsion layer thereon, whereinsilver halide grains contained in the silver halide emulsion layer are mainly comprised of tabular grains which have an aspect ratio of the grain size to the grain thickness of not lower than 5, and the projective areas of the whole tabular grain occupy not less than 50% of the projective areas of the whole silver halide grain in the emulsion layer,the melting time of the silver halide photographic light-sensitive material is within the range of from not shorter than 45 minutes, andon the side bearing the hydrophilic colloidal layer containing the silver halide emulsion layer, an amount of gelatin is within the range of from 2.

Abstract: Heteroaromatic vinylsulphone compounds having at least two vinylsulphonyl groups each attached to a carbon atom of a heteroasomatic ring are suitable for hardening proteinic binder layers such as photographic layers containing gelatine as binder.

Abstract: A silver halide photographic material containing a support and, provided thereon, at least one silver halide emulsion layer, this silver halide emulsion layer containing silver halide grains containing 90 mol % or more of silver chloride, a dye-forming coupler, and a compound represented by general formula [S]; ##STR1## wherein Q is a group of atoms necessary to complete a 5- or 6-membered heterocyclic ring or a 5- or 6-membered ring fused with a benzene ring and M is a hydrogen atom, an alkali metal or an ammonium group;the silver halide layer having been hardened by a hardener represented by formula [HDA] or [HDB]; ##STR2## wherein Rd.sub.

Abstract: A silver halide photographic light-sensitive material comprising a support bearing at least one silver halide emulsion layer is disclosed. The silver halide emulsion layer contains silver halide grains comprising not less than 80 mol% of silver chloride and a water soluble iridium compound in an amount of from 10.sup.-8 to 10.sup.-5 mol per mol of a silver halide contained in the emulsion layer. And the emulsion layer is hardened with a hardner represented by General Formula [I] or [II]. ##STR1## The photographic material has an excellent antipressure property and suitable for a rapid processing.

Abstract: A heat-developable light-sensitive material comprising a support having thereon at least a light-sensitive silver halide emulsion, an organic silver salt, and a binder, wherein silver halide grains in the silver halide emulsion are formed in the presence of sensitizing dyes. This light-sensitive material is greatly improved in its storage stability.

Abstract: A silver halide photographic light-sensitive material which is excellent in raw-stock preservability, physical characteristics of its layers such as glossiness, scratch resistance, and degree of swelling and whose sensitivity changes very little with time after manufacture comprising a compound represented by Formula [I] of the specification, hardened with at least one of the compounds represented by Formula [II] or [III] of the specification. The storage stability is further improved when at least one of the cyan couplers represented by Formula [IX] or [X] of the specification is present.

Abstract: A silver halide photographic light-sensitive material comprising a support bearing thereon a photographic layer comprising a light-sensitive silver halide emulsion layer and a non-light-sensitive hydrophilic colloidal layer; wherein at least one of the photographic layers is hardened by a vinylsulfone hardener, and at least one layer selected from the group consisting of the photographic layers each hardened by the vinylsulfone hardener and the other photographic layers is hardened by a triazo compound, and further at least one of the silver halide emulsion layers contains silver halide particles which are spectrally sensitized by one of certain sensitizing dyes.

Abstract: Disclosed is a silver halide photographic material containing at least one layer of silver halide emulsion layers on a support characterized in that at least one layer of said silver halide emulsion layers contains mono-dispersed silver halide grains formed with (100) face and (111) face and said silver halide emulsion layer is hardened with at least one of the hardening agents represented by the formula [I] shown below and/or at least one of the hardening agents represented by the formula [II] shown below, ##STR1## wherein R.sub.1 represents a chlorine atom, a hydroxy group, an alkyl group, an alkoxy group, an alkylthio group, --OM group (M is a monovalent metal atom), --NR'R" (R' and R" are a hydrogen atom, an alkyl group or an aryl group, respectively) or --NHCOR"' (R"' is a hydrogen atom, an alkyl group or an aryl group) and R.sub.2 has the same meanings as R.sub.1 except for a chlorine atom, ##STR2## wherein R.sub.3, R.sub.3 ', R.sub.4 and R.sub.

Abstract: A silver halide photographic light-sensitive material comprising a support bearing thereon a silver halide emulsion layer containing a diffusionproof coupler and being hardened with a hardening agent represented by Formula [II] and/or Formula [III] indicated below is enabled to acquire improved film properties and enjoy increased freedom from repression of latent image by using, as the diffusionproof coupler, a compound represented by Formula [I] indicated below: Formula [I] ##STR1## wherein R.sub.1 denotes a straight or branched alkyl group having 2 to 4 carbon atoms; R.sub.2 a ballast group; and X a hydrogen atom or a group capable of splitting off through reaction with the oxidation product of an aromatic primary amine type color developing agent. ##STR2## wherein R.sub.3 denotes a chlorine atom, a hydroxy group, an alkyl group, an alkoxy group, an amino group, an acylamino group, or a --OM group in which M denotes a monovalent metal atom; R.sub.4 has the same meaning as R.sub.

Abstract: A silver halide photographic material having at least one layer of silver halide emulsion layers containing a silver halide having a silver chloride content of not less than 25 molar %, characterized in that at least one of said silver halide emulsion layers contains a silver halide sensitized with a compound having the following formula (Ia), and/or a compound having the following formula (Ib) and is hardened with a compound having the following formula (II) and/or a compound having the formula (III); ##STR1## in the above formulae (Ia), (Ib), (II) and (III), R.sub.1 to R.sub.20, Z.sub.1 and Z.sub.2, n.sub.1 and n.sub.2, Q and Q', L, p and q are defined in the specification.The photographic material of the invention not only shows a higher sensitivity, a lower infrared sensor fogging, a superior sharpness or color reproductivity and a superior whiteness but also exerts a good storage property with time or a lower change in sensitivity after storage.

Abstract: The difficulties in the casting process of photographic gelatin containing layers caused by increases in the viscosity of the casting solution due to the premature cross-linking of gelatin can be prevented if a compound containing at least one vinyl sulfone group and at least one sulfonyl ethyl sulfate group in the form of their salts is incorporated in the casting composition of the gelatin-containing layer(s) or in the gelatin-containing layer(s) applied to the layer support.

Abstract: A silver halide photographic light-sensitive material for plate making is disclosed. The material is comprised of a support base having thereon a sensitive silver halide emulsion layer and at least one upper insensitive layer having a melting time longer than the melting time of the sensitive silver halide emulsion layer. A method of reduction treatment for such silver halide light-sensitive material is also disclosed. The sensitive materials have excellent aptitude for reduction treatment and do not deteriorate even if the amount of silver per unit area is relatively small.

Abstract: A method of hardening gelatin is described which uses (1) a polymer containing at least 0.01 mol % of a repeating unit represented by formula (I) ##STR1## wherein R represents a hydrogen atom, an alkyl group having from 1 to 6 carbon atoms, or a halogen atom, M represents a hydrogen atom, an alkali metal atom, an alkaline earth metal atom, or an organic base, X represents an alkyl group having from 1 to 6 carbon atoms, an alkoxy group having from 1 to 6 carbon atoms, an alkylamino group having from 1 to 6 carbon atoms, or a halogen atom, m represents 0, 1 or 2, and n represents 1 or 2, (2) a polyvalent alcohol having at least two hydroxy groups, and (3) a hardener having an active vinyl group.The method has advantages in that the rate of hardening the gelatin is fast, the so-called post hardening property is small, and the gelatin composition is hardely influenced by the conditions of temperature and humidity during storage.

Abstract: A photographic element is described which is provided with a subbing layer comprising (1) a copolymer of a diolefin monomer and at least one vinyl monomer, and (2) a dichloro-2-triazine derivative.

Abstract: In a process for hardening gelatine containing layers of color photographic multi-layered materials which have a paper laminated with a polyolefin layer arranged on both sides a substrate 1,3,5-triacrylohexahydro-1,3,5-triazine and a polyhydric aliphatic alcohol with 3 to 10 carbon atoms are added to the casting solutions and the casting solutions are then applied to a corona irradiated surface of the substrate.

Abstract: Gelatin-containing layers of photographic materials are hardened by adding a compound containing from 2 to 6 sulfonyl ethyl sulfate groups in the form of its salts and activating the compound by adjusting a pH-value in the range from 6.5 to 11.

Abstract: A photographic material containing protein as binding agent is hardened with a compound which contains at least two free vinyl sulfonyl groups in the molecule and which is a bisulfite addition product of a compound containing up to 6 vinyl sulfonyl groups.

Abstract: A method of hardening gelatin which uses both a gelatin hardener and a polymer having a repeating unit of the formula (I): ##STR1## wherein R represents a hydrogen atom, an alkyl group having 1 to 6 carbon atoms, and a halogen atom; M represents a hydrogen atom, an alkali metal atom, an alkali earth metal atom, or an organic base; X represents an alkyl group having 1 to 6 carbon atoms, an alkoxy group, an alkylamino group, or a halogen atom; m represents 0, 1 or 2; and n represents 1 or 2.

Abstract: A proteinaceous material such as gelatin is hardened by treatment with an aqueous solution of a partial hydrolysis product of cyanuric chloride that has been buffered with a water-soluble borate, e.g. sodium metaborate, potassium metaborate or ammonium metaborate.The proteinaceous material can be a proteinaceous coating such as a photographic silver halide emulsion layer, a backing layer, a protective layer, a filter layer or any other photographic auxiliary layer.

Abstract: A silver halide color photographic material having, on a support, at least one light-sensitive emulsion layer containing a silver chlorobromide emulsion (having a chloride content of 80 mol % or less) substantially free of iodide, with the silver chlorobromide emulsion being spectrally sensitized with a combination of at least two kinds of spectral sensitizing dyes having specified formulae, and with the silver chlorobromide emulsion layer being hardened with at least one 1,3,5-triazine derivative having specified formula, whereby achieving inhibition for increase in fog upon long-range preservation thereof as finished goods without attended by decrease in developing speed.