Abstract: The invention provides a process for making a lithographic printing plate utilizing silver image as ink receptive area which is markedly improved especially in printing endurance. The process comprises subjecting a light-sensitive material for lithographic printing plate to imagewise exposure and development and then treating the resulting silver image with an oxidizing agent and a monocyclic compound comprising a nitrogen-containing single ring and having substituents on at least two atoms constituting said ring, said substituents being capable of reacting with silver ion. The oxidizing agent and the monocyclic compound may be contained separately or together in a stop solution, a fixing solution, an etch solution or damping solution or especially prepared solution.

Abstract: A method for processing a silver halide color photographic material including the step of developing the silver halide color photographic material with a color developing solution containing at least one aromatic primary amine developing agent and at least one hydrazide represented by the following formula (I) or (II)R.sup.1 --X.sup.1 --NHNH--R.sup.2 (I)in whichX.sup.1 represents --CO--, --SO.sub.2 -- or ##STR1## R.sup.1 represents a hydroxyl group, a hydroxyamino group, carbamoyl group, a hydrazinocarbonyl group, an amino group, or a hydrazino group; and R.sup.2 represents a hydrogen atom, an alkyl group, or an aryl group; provided that the R.sup.1 or R.sup.2 groups of at least two of the hydrazide groups may be linked to form a dimer or higher polymer of the hydrazide.R.sup.3 --X.sup.2 --NHNH--R.sup.4 (II)in whichX.sup.2 represents --CO-- or --SO.sub.2 --; R.sup.3 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group, an alkoxy group, or an aryloxy group; and R.sup.

Abstract: A silver halide photographic material which comprises a support having thereon at least one hydrophilic colloid layer being a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer containing a compound represented by the following general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 both represent a hydrogen atom, or one of A.sub.1 and A.sub.2 is a hydrogen atom and the other is a sulfonyl group or an acyl group; R.sub.1 represents an aliphatic group or an aromatic group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, a group of ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a group of ##STR3## or an iminomethylene group; X.sub.1 represents a residue of a nitrogen-containing heterocyclic ring; and at least one of R.sub.1 and X.sub.1 having an adsorption-accelerating group on silver halide.

Abstract: A high-contrast room-light-handleable black-and-white silver halide photographic film especially adapted for use as a dry-dot-etchable contact film in the graphic arts is comprised of a support having in order on one side thereof (1) a radiation-sensitive layer comprising silver halide grains, a hydrophilic colloid and a polymer latex, (2) an interlayer comprising a hydrophilic colloid and a polymer latex, and (3) an overcoat layer comprising a hydrophilic colloid, a matting agent and a light-scattering agent, wherein the interlayer has a refracive index in the range of from about 1.4 to about 1.7 and a thickness which is in the range of from about 0.5 to about 5 microns and is at least twice that of the overcoat layer. The combination of the light-scattering agent in the overcoat layer and the thick interlayer facilitates optical spreading of the image during contact exposure, and thereby enhances the performance of the contact film in use with multi-layer originals and in processes of dry dot etching.

Abstract: A negative type silver halide photographic material is disclosed. The material comprises a support having provided thereon at least one silver halide emulsion layer containing silver halide grains sensitized with gold and sulfur sensitizers, the emulsion layer or at least one other hydrophilic colloid layer containing at least one high contrast-imparting hydrazine derivative and at least one compound represented by the following general formula (I): ##STR1## wherein Z represents N or C--X wherein X represents a substituted or unsubstituted alkyl or aryl group, Y represents a substituted or unsubstituted alkyl or aryl group, and M represents a hydrogen atom, a metallic atom, or ammonium which may be substituted.

Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where each R is a monovalent group comprised of at least three repeating ethyleneoxy units, n is 1 to 3, and R.sup.1 is hydrogen or a blocking group.

Abstract: A method for processing an image-wise exposed silver halide photographic material is disclosed, which comprises developing said exposed silver halide photographic material in the presence of a hydrazine derivative, wherein the processing is effected with a water-soluble alkaline developing solution having a pH of 10.5 to 12.3 and containing the following components (1) to (3):(1) a dihydroxybenzene developing agent;(2) a sulfite preservative in an amount of 0.3 mol/l or more; and(3) a compound represented by formula (X) in an amount of from 0.005 to 0.30 mol/l: ##STR1## wherein R.sub.1 represents a hydroxylalkyl group having from 4 to 10 carbon atoms, and in a preferred embodiment, using as a developing agent a dihydroxybenzene developing agent and, as an auxiliary developing agent, a p-aminophenol developing agent, a 3-pyrazolidone developing agent or a mixture thereof.

Abstract: A silver halide photosensitive material comprising a support having thereon at least one silver halide emulsion layer containing silver halide grains. These silver halide grains are obtained by subjecting the surface of silver halide grains to halogen conversion. These silver halide grains are essentially silver iodide free silver chlorobromide. They have a plurality of internal layers of different halogen compositions and contain at least one bridged pentamethine cyanine dye compound represented by the general formula (I) or (I'): ##STR1## and one compound represented by general formula (II): ##STR2## The variables in the above formulas are defined in the instant specification.

Abstract: An image-forming method for a light-sensitive material comprising a support and a light-sensitive layer containing silver halide, an ethylenically unsaturated polymerizable compound, a base or base precursor and a salt of a reducing agent, wherein a heat development process is performed simultaneously with or after an imagewise exposure in the presence of the base or base precursor activator to release the reducing agent from the salt and to imagewise polymerize the polymerizable compound.

Abstract: A negative-type silver halide photographic material is disclosed, which comprises a support having provided thereon at least one hydrophilic colloid layer, at least one of which is a silver halide emulsion layer, wherein the hydrophilic colloid layer contains:(a) a compound represented by formula (I): ##STR1## wherein, A.sub.1 and A.sub.2 both represent hydrogen atoms, or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a ##STR3## group, or an iminoethylene group, X.sub.1 is a moiety which instigates a ring-forming reaction by cleaving the --G.sub.1 --X.sub.1 moiety from the residual molecule and forming a cyclic structure containing the atoms of the --G.sub.1 --X.sub.

Abstract: There is disclosed a processing method of a light-sensitive silver halide photographic material to be used in a method for forming an image be developing and fixing a negative type light-sensitive silver halide photographic material having at least one layer of light-sensitive silver halide emulsion layer on a support, which comprises the silver density on the emulsion layer side of said light-sensitive silver halide photographic material is 0.5 g/cm.sup.2 or higher and also a hydrazine derivative is contained in said layer, and the light-sensitive silver halide photographic material is processed within a developing time of 15 seconds.

Abstract: A light-sensitive material which comprises a light-sensitive layer and a support is disclosed. The light-sensitive layer contains silver halid grains, at least two hydrazine derivatives and a polymerizable compounds. One hydrazine derivative has the following formula [I]: ##STR1## in which one of R.sup.1 and R.sup.2 is hydrogen, and the other is hydrogen, an alkylsulfonyl group, an arylsulfonyl group or an acyl group; R.sup.3 is an aliphatic group, an aromatic group or a heterocyclic group; R.sup.4 is hydrogen, an alkyl group, an aralkyl group, an aryl group, an alkoxy group, an aryloxy group, amino or carbamoyl; at least one hydrogen atom contained in R.sup.3 or R.sup.4 is replaced with a group capable of being adsorbed on silver halide grains; G is carbonyl, sulfonyl, sulfinyl, ##STR2## (R.sup.5 has the same meanings as for R.sup.4); and each of R.sup.1, R.sup.2, R.sup.3, R.sup.4, R.sup.5 and G may have one or more substituent groups.

Abstract: A silver halide photographic material having at least one hydrophilic colloid layer, wherein at least one hydrophilic colloid layer is a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer contains a compound represented by the general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 both represent hydrogen atoms, or one of them represents a hydrogen atom and the other represents a sulfonyl group or ##STR2## (wherein R.sub.0 represents an alkyl group, an alkenyl group, an aryl group, an alkoxy group or an aryloxy group, and l.sub.1 represents 1 or 2); G represents ##STR3## (wherein m.sub.1 represents 1 or 2), --SO.sub.2 --, --SO--, ##STR4## (wherein R.sub.

Abstract: A silver halide photographic light-sensitive material is disclosed, which is suitable for contact printing in photomechanical process and capable of being handled in day-light room. The light-sensitive material comprising a support; a silver halide emulsion layer being provided on a surface of the support and containing a tetrazolium compound or a hydrazine compound; a layer containing a tin oxide or an indium oxide and being provided on the surface of the support opposite to the surface the emulsion layer provided thereon; and a layer containing a homopolymer or a copolymer comprising sodium styrenesulfonate, and being provided directly or through an intermediate layer on the surface of the metal oxide containing layer further to the support. The light-sensitive material is excellent in reverse-text quality and inhibited in formation of pin-holes.

Abstract: A silver halide photographic material which comprises a support having thereon at least one hydrophilic colloid layer, wherein at least one hydrophilic colloid layer is a silver halide photographic emulsion layer, and at least one hydrophilic colloid layer contains a compound represented by the following general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 both represent a hydrogen atom, or one of A.sub.1 and A.sub.2 is a hydrogen atom and the other is a sulfonyl group or an acyl group; R.sub.1 represent an aliphatic group or an aromatic group; Y.sub.1 represents a divalent linking group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfinyl group, a sulfoxy group, a group of ##STR2## wherein R.sub.2 is an alkoxy group or an aryloxy group, a group of ##STR3## or an iminomethylene group; and Z.sub.1 represents a residue of a nitrogen-containing heterocyclic ring.

Abstract: A method of preparing a color proof from a silver halide color photographic light-sensitive material and a black-and-white halftone dot image is disclosed, wherein said light-sensitive material has on a support the photographic component layers including silver halide emulsion layers each having different spectral sensitivities, and one of said silver halide emulsion layers comprises a magenta coupler represented by Formula M-I; ##STR1## wherein Z represents a group of non-metal atoms necessary to form a nitrogen-containing heterocyclic ring including a substituted one; X represents one selected from the group consisting of a hydrogen atom and a group capable of splitting off upon a reaction with an oxidized product of a developer; and R represents one selected from the group consisting of a hydrogen atom and a substituent.

Abstract: A silver halide photographic material comprising a support having thereon at least one hydrophilic colloid layer, at least one of which is a silver halide photographic emulsion layer, is disclosed. At least one of the silver halide emulsion layers or other hydrophilic colloid layers of the photographic material contains a compound represented by formula (I): ##STR1## wherein, A.sub.1 and A.sub.2 both represent hydrogen atoms or one represents a hydrogen atom and the other a sulfonyl group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a ##STR2## group wherein R.sub.2 represents an alkoxy group or an aryloxy group, a ##STR3## group or an iminomethylene group, X.sub.1 is a moiety which instigates a ring-forming reaction by cleaving the --G.sub.1 --X.sub.1 moiety from the residual molecule and forms a cyclic structure containing the atoms of the --G.sub.1 --X.sub.

Abstract: A silver halide photographic material comprising at least one compound represented by formula (I): ##STR1## wherein X represents a hydrogen atom or a group which can become a hydrogen atom by hydrolytic action, Time represents a divalent connecting group, t represents 0 or 1, PUG represents a development inhibitor, V represents a carbonyl group, ##STR2## a sulfonyl group, a sulfoxy group, ##STR3## (R.sub.0 represents an alkoxy group or an aryloxy group), an iminomethylene group, a thiocarbonyl group or ##STR4## (W represents an electron attractive group), R represents a hydrogen atom, a substituted or unsubstituted aliphatic group, a substituted or unsubstituted aromatic group, or ##STR5## (PUG, Time, t and W are as defined above); and at least one compound represented by formula (II): ##STR6## wherein R.sub.1 represents a substituted or unsubstituted aliphatic group or a substituted or unsubstituted aromatic group, R.sub.

Abstract: A high-contract development process is disclosed, which comprises developing a silver halide photographic material containing at least a hydrazine derivative with a developer having a pH of from 10.0 to 12.3 and containing(a) a dihydroxybenzene developing agent,(b) at least 0.3 mol/liter of a sulfite, and(c) at least one of compounds represented by formulae (I-1), (I-2), (I-3) or I-4); ##STR1## wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 each represents an alkyl group having from 1 to 5 carbon atoms or a hydroxyalkyl group, provided that R.sub.1 and R.sub.2, or R.sub.3 R.sub.4 may combine with each other to form a nitrogen-containing heterocyclic ring; and A and D each represents a substituted or unsubstituted alkylene group, ##STR2## wherein R.sub.6, R.sub.7, R.sub.8, and R.sub.9 =each represents an alkyl group having from 1 to 5 carbon atoms or a hydroxyalkyl group, provided that R.sub.6 and R.sub.7, or R.sub.8 and R.sub.

Abstract: Disclosed is a light-sensitive silver halide photographic material comprising a transparent support and provided thereon a silver halide emulsion layer, wherein the support is subjected to corona discharge treatment on its surface opposite to the side on which the emulsion layer is provided, and is provided thereon with a subbing layer containing a latex polymer, a non-gelatin layer containing a conductive polymer, and a gelatin layer containing a conductive polymer and a backing dye, in this order. The light-sensitive silver halide photographic material obtained by this invention can be handled in a roomlight environment when used as a light-sensitive material particularly in the field of printing plate making or the like, has a superior antistatic ability and a high sensitivity, and yet can obtain a photographic image with a high contrast, and also can stably obtain a halftone with a high quality and less fog.

Abstract: A silver halide photographic material which comprises a support having thereon at least one of silver halide emulsion layer and other hydrophilic colloid layer where at least one of said silver halide emulsion layer and other hydrophilic colloid layer contains a hydrazine derivative represented by formula (I), and also having thereon, as a constitutional layer, at least one electroconductive layer having a surface resistivity of 1.times.10.sup.12 .OMEGA. or less in an atmosphere of 25.degree. C. and 25% RH; ##STR1## wherein R.sub.1 represents an aliphatic group or an aromatic group; R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, an amino group, a carbamoyl group or an oxycarbonyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## or an iminomethylene group; A.sub.1 and A.sub.

Abstract: An improved silver halide photographic material having at least one layer of a light-sensitive silver halide emulsion that is spectrally sensitized with a sensitizing dye of the following general formula (1) to light having a wavelength of 750 nm and above. Said silver halide emulsion is prepared by a process which comprises generating silver halide grains by adding a solution of a water-soluble silver salt and a solution of a water-soluble halide to a solution containing a protective colloid, aggregating the generated silver halide grains with a polymeric flocculating together with the protective colloid, and removing the dissolved matter; ##STR1## where Z.sub.1 and Z.sub.3 each represents the non-metallic atomic group necessary to form an optionally substituted benzothiazole, benzoxazole, naphthothiazole or naphthoxazole nucleus; R.sub.1 and R.sub.2 each represents a saturated or unsaturated aliphatic group; Z.sub.2 represents a 5- or 6-membered ring of carbon atoms; A represents a hydrogen atom when Z.sub.

Abstract: A silver halide photographic light-sensitive material is described, comprising a support, at least one light-sensitive silver halide emulsion layer on the support, and at least one light-insensitive top layer provided on the emulsion layer, wherein at least one of the emulsion layer and other constituent layers contains a compound represented by the general formula (I)R.sup.1 --NHNH--G--R.sup.2 (I)wherein R.sup.1 is a substituted or unsubstituted aryl group, R.sup.2 is a hydrogen atom, a substituted or unsubstituted aryl group, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkoxy group, or a substituted or unsubstituted aryloxy group, and G is a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an N-substituted or unsubstituted imino group and wherein said at least one light-insensitive top layer is hardened so as to have a melting time at least 50 seconds longer than that of the emulsion layer.

Abstract: Silver halide photographic material and method of forming an image using the same are disclosed. The material comprises one or more silver halide emulsion layers on a support, with a hydrazine derivative and a developing agent being incorporated in at least one of said emulsion layers. The image forming method comprises performing imagewise exposure of the above-described photographic material and developing said material with a developing solution that contains sulfite ions in a concentration of not less than 0.15 mole per liter and which has a pH within the range of from 9.5 to 12.3, and provides a supercontrasty negative image that has a very contrasty photographic characteristic of a gamma (.gamma.) of 10 or more and which is not highly susceptible to the occurrence of "black spots".

Abstract: A negative type silver halide photographic material is disclosed, which comprises a support having thereon at least one silver halide emulsion layer and at least one other hydrophilic colloidal layer, wherein at least one said silver halide emulsion layer or at least one said other hydrophilic colloidal layer contains a hydrazine derivative and a polyacrylamide derivative.

Abstract: A method for making a color proof in a photo-mechanical process. The method comprises a step for exposing a silver halide color photographic light-sensitive material to light through a black-and-white halftone dot image, and a step for developing said silver halide color photographic light-sensitive material with a color developer. The photographic material is comprised of at least three silver halide emulsion layers which are different from each other in spectral sensitivity thereof, and at least one of these silver halide emulsion layers contains a specific yellow coupler and the color developer contains a specific color developing agent. A halftone color image having a color tone similar to that of image printed with printing inks can be obtained by the simplified process.

Abstract: An image forming method suitable for forming a color proof is disclosed. The method comprises (1) a step for exposing a silver halide color photographic light-sensitive material, which is comprised of a support having thereon photographic component layers including a yellow image-forming blue-sensitive, a magenta image forming green-sensitive and a cyan image-forming red-sensitive emulsion layer, to light through a transparent black-and-white halftone image and (2) a step for processing the exposed light-sensitive material to form a color image, wherein the photographic component layers contain a yellow water-soluble dye, a magenta water-soluble dye and a cyan water-soluble dyes and reflective densities of the silver halide color photographic material measured with light of 450 nm, 550 nm and 700 nm are each not less than 0.8, and toe portion gradations of characteristic curves of yellow, magenta and cyan images formed in the light-sensitive material by the processing are each not less than 1.

Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where each R is an alkyl group, n is 1 to 3, X is an anion, m is 1 to 6, Y is a divalent aromatic radical, and R.sup.1 is hydrogen or a blocking group.

Abstract: A direct positive image forming method comprising development processing an imagewise exposed direct positive photographic light-sensitive material which comprises a support having thereon at least one layer containing internal latent image type silver halide grains not having been previously fogged after fogging treatment or while fogging treatment, wherein the fogging treatment is conducted in the presence of a compound represented by the following general formula (I): ##STR1## wherein A.sub.1 and A.sub.2 both represent a hydrogen atom or one of A.sub.1 and A.sub.2 represents a hydrogen atom and the other represents a sulfonyl group or an acyl group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## or an iminomethylene group; L.sub.1 represents a divalent linkage group; X.sub.1 represents --O-- or ##STR3## wherein R.sub.4 represents a hydrogen atom, an alkyl group or an aryl group); Y.sub.1 represents ##STR4## R.sub.1 and R.sub.

Abstract: A light-sensitive material comprising a light-sensitive layer provided on a support wherein the light-sensitive layer contains silver halide, a reducing agent, a polymerizable compound, and a thiol derivative having the formula (I):R--SM (I)in which R is a monovalent group selected from the group consisting of an alkyl group, a cycloalkyl group, an aralkyl group, an alkenyl group and an aryl group, each of which may have one or more substituent groups; and M is a monovalent group selected from the group consisting of hydrogen, silver, an alkali metal and ammonium. Image-forming methods utilizing the light-sensitive materials are also disclosed.

Abstract: Silver halide photographic elements which are capable of high contrast development having incorporated therein, as a nucleating agent, an aryl sulfonamidophenyl hydrazide of the formula: ##STR1## where R is a monovalent group comprised of at least three repeating ethyleneoxy units, m is 1 to 6, Y is a divalent aromatic radical, and R.sup.1 is hydrogen or a blocking group.

Abstract: A processing method for silver halide photographic material is disclosed, which stably provides images having high contrast and high dot quality with little degradation in sensitivity by rapid processing.

Abstract: A silver halide photographic material is disclosed, which comprises at least one silver halide emulsion layer on a support, at least one of the emulson layer and other layers contains at least one hydrazine derivative and at least one of these layers contains at least one compound having both a silver halide adsorbing group and an acid group represented by the general formula (I):C-L-D (I)wherein C represents a group that enhances adsorption to silver halide, D represents an acid group, and L represents a divalent linking group,and possessing substantially no absorption maximum in the visible region. A method for forming superhigh contrast negative images is also disclosed, comprising imagewise exposing this silver halide photographic material, followed by developing with a developing solution containing sulfite ions in an amount of about 0.15 mol or more per liter and having a pH of about 10.5 to about 12.3.

Abstract: A silver halide photographic material comprising a support having provided thereon at least one hydrophilic colloid layer, the hydrophilic colloid layer comprising polymer particles which contain hydrazine derivative.

Abstract: An image-forming method employs a light-sensitive material comprising a support and a light-sensitive layer provided thereon which contains a silver halide, a reducing agent, an ethylenically unsaturated polymerizable compound and a specific development inhibitor precursor. The image-forming method comprises heat-developing the light-sensitive material after or simultaneously with imagewise exposure of the material so as to imagewise polymerize the polymerizable compound in the presence of a development inhibitor released from the precursor in the course of the heat development. The image-forming method may be also performed under such condition that a liquid such as water is contained in the light-sensitive layer of the light-sensitive material within the specific amount.

Abstract: A silver halide photographic light-sensitive material is disclosed, which is suitable for contact printing in photomechanical process and capable of being handled in daylight room. The light-sensitive material comprises a support having thereon a silver halide emulsion layer containing a silver halide emulsion and a hydrazine compound or a tetrazolium compound, a layer being provided on the surface of said emulsion layer farther from said support and containing a compound having a maximum spectral absorption at a wavelength of at least 50 nm longer than that of the maximum spectral sensitivity of said silver halide emulsion, and a layer being interposed between said support and said emulsion layer and containing a macromolecular compound having a heterocyclic group having a sulfo group or an alkylsulfo group. The light-sensitive material is excellent in reverse-text quality and inhibited in formation of pin-holes.

Abstract: An ultra-high contrast negative type silver halide photographic material comprising:(1) at least one silver halide emulsion layer on a support;(2) at least one compound selected from among hydrazine derivatives which can be represented by formula (I) below, which is included in said emulsion layer or in another hydrophilic colloid layer, ##STR1## wherein A.sub.1 and A.sub.2 both represent hydrogen atoms or one represents a hydrogen atom and the other represents a sulfinic acid residual group or an acyl group, R.sub.1 represents an aliphatic group, an aromatic group or a heterocyclic group, R.sub.2 represents a hydrogen atom, an alkyl group, an aryl group, an alkoxy group, an aryloxy group, or an amino group, G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group or an N-substituted or unsubstituted iminomethylene group, and at least one of R.sub.1 and R.sub.

Abstract: An image-forming method comprises: imagewise exposing to light a light-sensitive material comprising a support and a light-sensitive layer which contains silver halide, a reducing agent and an ethylenic unsaturated polymerizable compound; and simultaneously or thereafter developing the light-sensitive material to imagewise polymerize the polymerizable compound. The light-sensitive material is developed by heating the light-sensitive material at a temperature of not lower than 50.degree. C. under such a condition that the light-sensitive layer contains a liquid in an amount of 10 to 400 wt. % based on the amount of the polymerizable compound.

Abstract: A silver halide photographic light-sensitive material is disclosed, which is inhibited in formation of pepper spot in a halftone image and capable of making extremely high contrast image thereon. The light-sensitive material contains a compound represented by the following formula: ##STR1## wherein A.sub.1 and A.sub.2 are each an arylene group or a divalent heterocyclic group; L is a linking group;z is a formyl group, an acyl group, a sulfonyl group, a carbamoyl group, a sulfamoyl group, an alkoxycarbonyl group, a thioacyl group or a ##STR2## group; X is --NR.sub.6 R.sub.7 or --OR.sub.8, in which R.sub.6 and R.sub.7 are each a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, a heterocyclic group, a hydroxy group, an alkoxy group, an alkenylkoxy group, an alkynyloxy group, an aryloxy group, or a heterocyclic oxy group, and R.sub.8 is a hydrogen atom, an alkyl group, an alkenyl group, an alkynyl group, an aryl group or a heterocyclic group; n is 1 or 2; m is 0 or 1; R.sub.1 and R.sub.

Abstract: Silver halide photographic elements which are capable of high contrast development, when processed in the presence of a hydrazine compound that functions as a nucleating agent, include certain secondary or tertiary amino compounds which function as incorporated boosters. Such elements are particularly useful in the field of graphic arts.

Abstract: A system for the preparation of dot etched lithographic films, consisting essentially of a light sensitive silver halide material for tanning development and an etching solution, in which system the light sensitive material of various layers contains at least one colorant, e.g., pigment or dye with acid groups, which is stable in the processing baths and forms with bases salts soluble in organic solvents, and the etching solution contains a base that ionizes the colorant, and a solvent for the resulting ion pair.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide photographic emulsion layers and other hydrophilic colloidal layers, wherein said at least one of photographic emulsion layers and other hydrophobic colloidal layers contains a compound represented by formula (I) ##STR1## wherein at least one of A.sub.1 and A.sub.2 represents a hydrogen atom and other represents a hydrogen atom, a sulfinic residual group or ##STR2## wherein R.sub.0 represents an alkyl group, an alkenyl group, an aryl grup, an alkoxy group or an aryloxy group, and l.sub.1 represents an integer of 1 or 2; G represents ##STR3## wherein m.sub.1 represents an integer of 1 or 2, a sulfonyl group, a sulfoxy group ##STR4## wherein R.sub.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide photographic emulsion layers and other hydrophilic colloidal layers, wherein said photographic emulsion layers or other hydrophilic colloidal layers contain a hydrazine compound represented by formula (I): ##STR1## wherein at least one of A.sub.1 and A.sub.2 represents a hydrogen atom and the other represents a hydrogen atom, a sulfonyl group or an acyl group; R.sub.1 represents an aliphatic, group, an aromatic group, or a heterocyclic group; Y.sub.1 represents a divalent organic group; G.sub.1 represents a carbonyl group, a sulfonyl group, a sulfoxy group, ##STR2## wherein R.sub.2 represents an alkoxy group or an aryloxy group, ##STR3## or an iminomethylene group; Z.sub.1 represents a group suitable for making a nucleophilic attack on G.sub.1 to separate the G.sub.1 --L.sub.1 --Z.sub.1 from the rest of the molecule; and L.sub.

Abstract: A silver halide photographic emulsion containing at least one compound represented by following formula (I):Dye--L--Hyd (I)wherein Dye represents a chromophore-containing dye residue shown by following formula (II); Hyd represents a hydrazine residue one of the two nitrogen atoms of which is substituted by a carbonyl group, a sulfonyl group, a sulfoxy group, a phosphoryl group, or an alkilydene group and L represents a divalent linkage group of bonding Dye and Hyd; ##STR1## wherein R and R.sub.1, which may be the same or different, each represents an alkyl group; Z and Z.sub.1, which may be the same or different, each represents an atomic group necessary for forming a 5- or 6-membered heterocyclic ring; Q represents an atomic group necessary for forming a 5- or 6-membered carbon ring or a 5- or 6-membered heterocyclic ring; A represents an oxygen atom or a sulfur atom; and n, d, and m each represents 0 or 1.

Abstract: A method for forming a high contrast negative image comprising the steps of:(a) imagewise exposing a silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer, said emulsion layer or other hydrophilic colloid layer containing at least one hydrazine derivative; and(b) developing said exposed silver halide photographic material in an developer solution containing:(1) a dihydroxybenzene developing agent;(2) at least one auxiliary developing agent selected from a 1-phenyl-3-pyrazolidone auxiliary developing agent and a p-aminophenol auxiliary developing agent;(3) at least 0.3 mol per liter of a sulfite; and(4) at least one compound represented by formula (I): ##STR1## wherein Y represents a group capable of adsorbing to silver halide; A represents a divalent linking group; B represents an amino group, an ammonium group or a nitrogen containing heterocyclic group; m is 1, 2 or 3; and n is 0 or 1; to form a high contrast negative image.

Abstract: A silver master plate recovery solution for a silver salt photographic plate for offset printing is disclosed which comprises (a) a hydrazine component for reducing the silver oxide layer of an image area, (b) a quaternary ammonium salt cationic activator and (c) water. The mixing ratio of the quaternary ammonium salt cationic activator is 3.0 to 20.0 wt % on the basis of the hydrazine component. The silver master plate recovery solution reduces the silver oxide layer of the image area of a silver salt photographic plate which has passed the stock time, thereby recovering the ink receptivity of the image area.

Abstract: A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer, said emulsion layer or at least one of other hydrophilic colloid layers containing a compound represented by formula (I):PWR--Time--.sub.T LA (I)wherein PWR represents a group which undergoes reduction to release (Time).sub.t LA; Time represents a group which release LA upon reaction following release of (Time).sub.t LA from PWR; t represents an integer of 0 or 1; and LA represents a group having a maximum light absorption in a wavelength range of 310 nm or more.

Abstract: A silver halide photographic material is disclosed, comprising a support having thereon at least one of silver halide photographic emulsion layers and other hydrophilic colloidal layers, wherein said photographic emulsion layers or other hydrophilic colloidal layers contain a compound represented by formula (I): ##STR1## wherein at least one of A.sub.1 and A.sub.2 represents a hydrogen atom and the other represents a hydrogen atom, a sulfinic residual group, or ##STR2## wherein R.sub.0 represents an alkyl group, alkenyl group, aryl group, alkoxy group or aryloxy group, and l.sub.1 represents an integer 1 or 2; G represents ##STR3## wherein m.sub.1 represents an integer 1 or 2, sulfonyl group, sulfoxy group, ##STR4## wherein R.sub.

Abstract: A silver halide photographic material is disclosed, which comprises a support having provided thereon at least one silver halide emulsion layer and which contains a hydrazine derivative in the emulsion layer or other hydrophilic colloidal layer, the emulsion layer containing two kinds of monodispersed silver halide grains different from each other in mean grain size, and the smaller sized monodispersed silver halide grains being chemically sensitized.An image-forming method using this photographic material is also disclosed.

Abstract: A negative silver halide photographic material composed of a support having thereon at least one chemically sensitized silver halide emulsion layer at least one hydraophilic colloidal layer containing a hydrazine derivative and a compound having substantially all absorption maxima outside the visible light region represented by formula (I): ##STR1## wherein Z.sup.11 and Z.sup.12 each represents a non-metallic atomic group necessary for completing a substituted or unsubstituted heterocyclic ring selected from benzoxazole, benzothiazole, benzoselenazole, naphthoxazole, naphthothiazole, naphthoselenazole, thiazole, thiazoline, oxazole, selsnazole, selsnazoline, pyridine, benzimidazole, and quinoline; R.sup.11 and R.sup.12 each represents a substituted or unsubstituted alkyl group, provided that at least one of them is substituted with an acid radical; X represents a counter ion necessary for charge balance; and n is 0 or 1.