Abstract: An image-forming process of a silver halide photographic material having at least one light-sensitive silver halide emulsion layer on a support, which comprises imagewise exposing the photographic material and developing the exposed photographic material using a developer under the presence of a compound represented by formula (I); ##STR1## wherein Q represents a non-metallic atomic group having at least one of a nitrogen atom, an oxygen atom, and a sulfur atom. and which is necessary for forming a 5-membered heterocyclic ring together with the two carbon atoms of the 1,2,3-triazole ring; Y represents a substituent; and n represents 0 or an integer of from 1 to 3, when n is 2 or 3, Y's may be the same or different; and a silver halide photographic material and a developer each containing the compound represented by formula (I).

Abstract: A color photographic silver halide material in which at least one coupler is dissolved or dispersed in a coupler solvent corresponding to the following formula: ##STR1## in which R.sub.1 is alkyl, alkenyl, cycloalkyl or cycloalkenyl,R.sub.2 and R.sub.3 are alkylene or alkenylene,X is CO, NHCO or SO.sub.2,n is 0 or 1 andl, m are numbers of 1 to 5,is distinguished by steep gradation and improved maximum density.

Abstract: A photographic element comprises a light sensitive silver halide emulsion layer having associated therewith a cyan dye-forming coupler dispersed in an organic solvent, the coupler having the formula: ##STR1## wherein A, B, and C are hydrogen or fluoride;X is selected from the group consisting of halogen, alkoxy and methyl groups;R is an aromatic or aliphatic group and n is 1 or 2;R' is a substituent group and m is from 0 to 4;COG is hydrogen or a coupling-off group capable of being split-off by an oxidized color developer; andwherein the substituent groups X, R, and R' are selected so as to ballast the coupler and keep it from wandering within the photographic elements.

Abstract: Photographic elements comprising certain 2-phenylcarbamoyl-1-naphthol image-modifying couplers exhibit proper hue, a resistance to dye crystallization, and a resistance to leuco cyan dye formation. Such couplers can be utilized for their image-modifying effect and can contribute substantially to the overall dye density of an image.

Abstract: The present invention relates to a silver halide photographic material comprising a support and at least one silver halide emulsion layer coated thereon, wherein said silver halide emulsion layer comprises from 5 to 15% by weight of a water-soluble, electrically conductive copolymer (1) containing carboxylic groups and sulfonic groups and wherein a hydrophilic colloid layer comprising a combination of a fluorinated surfactant (2), a non-ionic polyoxyethylene surfactant (3) and an anionic polyoxyethylene surfactant (4) is coated on said at least one silver halide emulsion layer.

Abstract: The present invention relates to polymethine spectral sensitising dyes comprising at least one intracyclic thioether function macrocycle.These special sensitising dyes may be used in silver halide photographic products.These spectral sensitising dyes improve the sensitivity of the photographic products whilst reducing the residual dye stain.

Abstract: Disclosed is a silver halide color photographic material having at least one silver halide emulsion layer on a support, in which at least one layer constituting the material contains a coupler of formula (I): ##STR1## where R.sub.1 represents an electron-attracting substituent having a Taft's substituent constant .sigma.* value of +0.52 or more; R.sub.2 represents a branched alkyl group; and X represents a pyrazolyl group. The material has excellent heat stability, sensitivity, gradation and color image fastness, and it also has excellent color forming capacity and absorption characteristics.

Abstract: The invention provides a photographic element comprising a support bearing a blue-light sensitive silver halide emulsion layer containing an acylacetanilide yellow image dye-forming coupler having formula I or II: ##STR1## wherein: R.sub.a is a substituted or unsubstituted alkyl, alkoxy, or aryloxy group;R.sub.b is a substituted or unsubstituted alkyl or aryl group;R.sub.c is hydrogen or a substituted or unsubstituted alkyl group;R.sub.1 is a substituent;n is an integer from 0 to 2;R.sub.2 is selected from the group consisting of halogen, trifluoromethyl, and substituted or unsubstituted alkoxy and aryloxy;R.sub.3 is a substituted or unsubstituted alkyl group;R.sub.4 is hydrogen, halogen, alkoxy carbonyl (--CO.sub.2 R), carbamoyl (--CONRR'), carbonamido (--NRCOR'), sulfonamido (--NRSO.sub.2 R') or trifluoromethyl; R.sub.1 is a substituent;X is hydrogen or a coupling-off group;wherein said blue-light sensitive silver halide emulsion layer is a low-chloride silver halide emulsion.

Abstract: A process is provided for forming an image involving a photosensitive element comprising a photopolymerisable monomer and a reducible metal salt, preferably silver behenate, and a donor element containing a reducing agent. After lamination to a cover sheet, photopolymerisation and delamination, the image density is built up by lamination to the donor element, transfer of reducing agent and peeling-apart, possibly followed by heating the photosensitive element.

Abstract: A silver halide color photographic material excellent in color reproducibility, color forming property, color image fastness and processing dependency. The material comprises a yellow color forming silver halide emulsion layer formed on a support, said layer containing at least one yellow color forming coupler represented by general formula (I) dispersed by dissolution in a high boiling organic solvent in a weight ratio of the high boiling organic solvent to the yellow color forming coupler of 0.6 or more: ##STR1## wherein X represents an organic residue necessary for forming a nitrogen-containing heterocycle with a nitrogen atom; Y represents an aromatic group or a heterocyclic group; Z represents a group which is eliminatable by reaction of the coupler represented by general formula (I) with an oxidation product of a developing agent.

Abstract: The present invention provides a photographic element developed in the presence of a hydrazide which displays high contrast but low levels of pepper fog. The novel silver halide photographic elements comprise, in at least one layer of the element, a pepper reducing agent. The pepper reducing agent of this invention is a compound having at least one nitrogen containing, heterocyclic ring group and at least one carbonyl group in or attached to said ring. The pepper reducing agents preferably are selected from the group containing 2,5-piperazinediones; glycol urils; 2,3-pyrazinedicarboxamides; 3-iminoisoindolinones; or glutarimides.

Abstract: Disclosed is a silver halide color photographic light-sensitive material comprising a magenta coupler represented by Formulas I or II: ##STR1## wherein R.sub.1 represents a substituent; X represents a hydrogen atom or a group capable of splitting off upon reaction with an oxidized product of a color developing agent; and R represents a substituted alkyl group containing at least two units represented by Formula III: ##STR2## wherein Y represents a non-metallic atomic group necessary to form a 5-membered or 6-membered heterocyclic ring together with a nitrogen atom.

Abstract: It has been discovered that when polyalkylene oxide compounds or block polymeric or block oligomeric surface active compounds comprising at least a polyoxypropylene (POP) block and a polyoxyethylene (POE) block are added to conventional dispersions of yellow couplers (that is dispersions in which the dispersed particles have a particle size of 0.1 to 0.6 .mu.m), such dispersions in a coated silver halide photographic element produce substantially higher dye yield compared to the conventional dispersion without any additive. Further, the yellow dye formed from such dispersions containing the addenda of this invention are substantially more light stable compared to dispersions that does not contain such addenda.The invention is carried out just by adding required amounts of the said polyoxyethylene (POE)--polyoxypropylene (POP) compound to a preformed milled coupler dispersion prior to coating the photographic element.

Abstract: A silver halide photographic element comprising a light sensitive silver halide containing layer which also contains a 2-equivalent pyrazolone magenta coupler, a thiomorpholine dioxide compound which has an alkoxy substituted aryl group substituent on the ring nitrogen, a compound of formula (I) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.3, R.sub.4 and R.sub.31 are independently an alkyl group or H; R.sub.11, R.sub.12 and R.sub.21 are alkyl groups.The presence of the compound (I) when used with the two-equivalent pyrazolone magenta coupler and compounds (R) and (S), can result in a photographic element with low printout and/or thermal discoloration problems.

Abstract: The present invention provides a photographic element comprising a support, at least one photosensitive silver halide layer and in or adjacent said silver halide layer a colour coupler of one of the general formulas: ##STR1## wherein R.sup.1 is a subsituted or unsubstituted aryl or a subsituted or unsubstituted heterocylic group,R.sup.2 is a subsituted or unsubstituted, saturated or unsaturated, primary or secondary alkyl group in which the carbon atom which joins R.sup.2 to rest of the coupler has at least one fluorine atom attached to it,R.sup.3 is an electron-withdrawing group, andX is H or a coupling-off group,and wherein the electron-withdrawing properties of R.sup.1 are such that the dye formed on coupling with oxidised colour developing agent 4-(N-ethyl-N-2-hydroxyethyl)-2-methylphenylenediamine has a .lambda..sub.max of from 537 to 570 nm.The invention also includes the coupler composition, methods of synthesizing the coupler and a method of forming an image in a photographic element.

Abstract: A silver halide photographic element having a light sensitive silver halide which layer also contains a 2-equivalent pyrazolone magenta coupler, a compound of formula (S) below, and a hydroquinone compound of formula (R) below: ##STR1## wherein: R.sub.1 is an alkyl group; and R.sub.2, R.sub.3 and R.sub.4 are independently an alkyl group or H.The presence of the compound (S) when used with the two-equivalent pyrazolone magenta coupler and compound (R), can result in low magenta dye fade, increased wavelength of maximum absorption of the magenta dye and increased magenta dye bandwidth.

Abstract: The present invention provides an optical recording medium using an amorphous-crystalline phase-change for recording and erasing, wherein reflectivity of an optical recording medium-constituting recording film in an amorphous state is larger than that of the optical recording medium-constituting recording film in a crystalline state, or wherein absorptivity of an optical recording medium-constituting recording film in an amorphous state is smaller than that of the optical recording medium-constituting recording film in a crystalline state.

Abstract: The invention provides a photographic process and element where the element comprises a light sensitive silver halide layer containing (1) an image dye-forming bicyclic azole coupler having bonded to the coupling site a group other than hydrogen which is clearable during the development process; (2) an azopyrazolone masking coupler; and (3) a stabilizing coupler having bonded to the coupling site only hydrogen atoms and/or carbon atoms which are not cleavable to permit dye formation during development.

Abstract: A method of making a silver halide emulsion comprising precipitating and chemically sensitizing the emulsion and further comprising adding to the emulsion a fused dihydropyrimidine compound represented by the following formula: ##STR1## wherein X is O, S or Se; R is a substituted or unsubstituted alkyl or aryl group; andZ contains the atoms necessary to form an aromatic group, a heteroaromatic group or a heterocyclic group and a silver halide emulsion made by this method.

Abstract: The present invention provides a high sensitivity silver halide photographic material which minimizes the formation of fog and exhibits a small sensitivity drop during storage. A silver halide photographic material is provided comprising a compound having a methine dye and a styryl base covalently connected to each other.