摘要:
A photographic silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group is replaced by a 2,5-dioxo-1-imidazolidinyl group, in which a nitrogen atom at 3-position and a carbon atom at 4-position are connected to form a ring through a divalent aliphatic radical, a photographic element containing the emulsion and a method for forming color photographic images which comprises developing the image-exposed photographic silver halide emulsion with a primary aromatic amino developing agent. These yellow color forming couplers have a high coupling reactivity as well as no adverse effect on the bleaching of developed silver and thus they are suitable for use in rapid processing type color photographic materials.
摘要:
A method of forming color photographic images which comprises developing image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the presence of a yellow color forming coupler represented by the following general formula (I) ##STR1## wherein X.sub.1 represents a hydrogen atom, an alkyl group, an aryl group, a heterocyclic group or an acyl group; X.sub.2 represents a hydrogen atom, an alkyl group or an aryl group; X.sub.3 represents a hydrogen atom, an alkyl group, an aryl group or an acyl group; Y represents an oxygen atom or a sulfur atom; and Q represents a residue of a yellow color forming coupler, e.g., a yellow coupler in which one hydrogen atom attached to the active methylene group of the coupler is eliminated. These yellow color forming couplers provide yellow color images having superior properties.
摘要:
A method of forming color photographic images which comprises developing an image-exposed photographic silver halide emulsion layer with a primary aromatic amino color developing agent in the presence of a yellow color forming coupler, in which one hydrogen atom of an active methylene group is substituted with a 5-alkylidene-3-hydantoinyl group and a color photographic light-sensitive element which comprises a silver halide emulsion containing a yellow color forming coupler, in which one hydrogen atom of an active methylene group of the coupler is substituted with a 5-alkylidene-3-hydantoinyl group. These yellow color forming couplers have a high coupling reactivity and additionally provide a stable coupler dispersion.
摘要:
A silver halide color photographic material is disclosed which comprises a support having thereon at least one light-sensitive silver halide emulsion layer. The silver halide color photographic material contains a developing solution-deactivated type timing DIR which forms either a nondiffusing dye or a dye dissolved out from the light-sensitive material during development and an acylacetamide type coupler having a specific acyl group and/or an N,N-substituted linear or cyclic malondiamide type coupler.
摘要:
A method of forming a color image wherein a color print original is printed on a printing color photographic material and the thus printed material is then subjected to color development to give a color print, which is characterized in that a band stop filter having a half width of the spectral transmittance curve of said filter in a wavelength range outside the region of the maximum spectral sensitivity wavelength (.lambda.max).+-.20 nm of at least one light-sensitive layer of the printing color photographic material is provided between the light source to be used in said printing step and the light-sensitive layer of said printing color photographic material, and in that a compound of a general formula (I):(C.sub.p).X (I)wherein C.sub.p represents a coupler residue capable of coupling with the oxidation product of a color developing agent to form a substantially colorless compound or a coupler residue which is coupled during a color development step to form a compound capable of being dissolved or diffused out of the layer of the photographic material; and X represents a group which is in the coupling position of the coupler and which may react with the oxidation product of a developing agent or which may react therewith to be released from the coupler, is incorporated into the light-sensitive layer of the said printing color photographic material or a taking color photographic material from which the said color print original is obtained, or into the interlayer existing between the light-sensitive layers of the said material.By the present method, excellent color prints can be obtained in short printing times, having reduced interlayer color mixing. pr
摘要:
A silver halide photographic light-sensitive material having at least one light-sensitive emulsion layer containing surface latent image-type silver halide grains, coated on a reflective support, in which said at least one emulsion layer contains regular crystal grains of silver chloride or silver chlorobromide having a mean silver chloride content of 80 mol % or more on the basis of the total silver halide grains contained therein and substantially does not contain silver iodide, and in which a colloidal silver-containing layer is located adjacent to said emulsion layer, wherein at least one of said colloidal silver-containing layer, said emulsion layer and an interlayer therebetween contains at least one mercaptoazole compound. The material is, after having imagewise exposed, processed with a color developer within 90 seconds. The material forms an image with excellent sharpness and whiteness.
摘要:
A organic electroluminescent device comprising: a pair of electrodes; and at least one organic layer between the pair of electrodes, wherein the at least one organic layer contains a specific compound in which a transition metal and a carbene carbon are bonded to each other.
摘要:
An organic electroluminescent device having a pair of electrodes and at least one organic layer including a light-emitting layer interposed between the pair of electrodes, in which the organic layer contains at least one compound represented by formula (I): wherein Z1 and Z2 each independently represent a nitrogen-containing heterocycle coordinated with the platinum through a nitrogen atom; Q1 and Q2 each independently represent a group bonded with the platinum through a carbon atom, an oxygen atom, a sulfur atom, a nitrogen atom or a phosphorous atom; Q1 and Q2 each represent a structure different from each other; L1 and L2 each independently represent a single bond or a linking group; and n represents 0 or 1.
摘要:
An organic electroluminescent device, which has a pair of electrodes, and at least one organic layer including a luminescent layer between the electrodes, wherein the organic layer contains at least one compound of formula (I): wherein Q11 are atoms for forming a nitrogen-containing hetero ring; Z11 to Z13 each independently represents CR, wherein R represents a substituent, CH or N; n11 is 0 or 1; M11 is a metal or boron ion that may further have a ligand(s); and a compound of formula (6): wherein R63 to R66 each is a hydrogen atom or a substituent; X61 to X64 and Z61 to Z66 each is CR, wherein R represents a substituent, CH or N.
摘要:
An organic electroluminescent device, which has a pair of electrodes and at least one organic layer including a luminescent layer between the pair of electrodes, wherein at least one layer between the pair of electrodes comprises at least one metal complex having a tridentate- or higher polydentate-chain structure ligand.