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.
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.
摘要:
A silver halide color photographic material having on a support at least one light-sensitive silver halide emulsion layer, wherein the color photogrphic material contains a nondiffusing coupler represented by formula (I):Cp--(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X (I)wherein Cp represents a coupler residue (residual group) which can undergo coupling reaction with the oxidation product of a color developing agent to release --(LINK).sub.n --N(R.sub.1)--Ar(OR.sub.2)--X; LINK represents a group which can release --N(R.sub.1)--Ar(OR.sub.2)--X after cleavage of bond to Cp; n represents 0 or an integar of 1 or 2, Ar represents an arylene group; X represents an amino group, an alkoxy group or a hydroxyl group; R.sub.1 represents a hydrogen atom or a substituent; and R.sub.2 represents an alkyl group or an aryl group and a method for processing the photographic material which comprises exposing, developing and bleaching the photographic material, wherein the replenishing amount for the developer is not more than 600 ml per square meter of the photographic material.
摘要:
A silver halide color photographic material containing at least one coupler compound of the formula (1) in at least one hydrophilic colloid layer which is provided on a support:R.sup.1 OCOCHXCONR.sup.2 R.sup.3 (1)where R.sup.1 represents a branched alkyl group including a cyclic alkyl group and a cyclic alkyl-substituted alkyl group, an aryl group or a heterocyclic group; R.sup.2 represents a hydrogen atom, an alkyl group, an aryl group or a heterocyclic group; R.sup.3 represents an alkyl group, an aryl group or a heterocyclic group; X represents a group which splits off from the coupler compound when the coupler compound is reacted with an oxidation product of an aromatic primary amine developing agent; and R.sup.2 and R.sup.3 may be bonded to each other to form a ring. The coupler has a high dye-forming rate to give a dye having a high color density and a high color fastness. The material has improved sharpness and color fastness and an elevated sensitivity.
摘要:
A silver halide color negative photosensitive material comprises at least one red-sensitive silver halide emulsion layer containing a 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 formed on a transparent support, wherein it contains 4.times.10.sup.-4 to 3 g, per m.sup.2 of the support, of a ferromagnetic fine powder and that the green-sensitive emulsion layer contains a coupler such as ##STR1## The photosensitive material makes it possible to shorten a printing time and has an excellent sharpness.
摘要:
A silver halide color photographic photosensitive material comprising a yellow image forming photographic coupler, which is capable of forming images having excellent color reproduction and image fastness, and which has a high reactivity with an oxidized form of a developing agent. The aforementioned object has been realized by means of a silver halide color photographic photosensitive material containing a coupler represented by general formula (I): ##STR1## wherein X represents an organic residual group which is required, together with the nitrogen atom, to form a nitrogen containing heterocyclic ring, Y represents an aromatic group or a heterocyclic group, and Z represents a group which is eliminated when the coupler represented by said general formula reacts with the oxidized form of a developing agent.
摘要:
In accordance with the present invention a silver halide photographic material having at least one silver halide emulsion layer on a base, which comprises at least one of compound having a dye precursor residue is disclosed. The silver halide photographic material is high in sensitivity and improved in color reproduction.
摘要:
The present invention is directed to a silver halide color photographic material including a blue-sensitive silver halide emulsion layer, a green-sensitive silver halide emulsion layer and a red-sensitive silver halide emulsion layer on a support, wherein at least one of the photosensitive layers comprises two or more unit layers having different sensitivities, and among all of said unit layers, the unit layer highest in sensitivity contains at least one of(a) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a compound that can produce a development inhibitor or its precursor when oxidized, and(b) a compound capable of producing, by the reaction of the compound with a developing agent oxidized product, a precursor of a compound that can produce a development inhibitor or its precursor when oxidized,with the amount of said at least one of compounds (a) and (b) being at most 1 mol % based on the amount of the silver halide in said unit layer highest in sensitivity.
摘要:
A novel method for processing a silver halide color photographic material. The process comprises imagewise exposing a silver halide color photographic light-sensitive material to light, color-developing the light-sensitive material, and then desilvering the light-sensitive material, wherein: (a) said silver halide color photographic light-sensitive material contains a compound which reacts with an oxidation product of anaromatic primary amine color developing agent to form a bleaching accelerator, (b) the desilvering step is conducted with a processing solution containing a ferric complex salt of an organic acid, and (c) the total amount of replenisher of the processing solution to be used in the desilvering step satisfies either the following conditions (i) or (ii):(i) the total amount of replenisher is 1,000 ml or less per m.sup.2 of the light-sensitive material if the coated amount of silver per m.sup.2 of the light-sensitive material is 2.0 g or more;(ii) the total amount of replenisher is 400 ml or less per m.sup.2 of the light-sensitive material if the coated amount of silver per m.sup.2 of the light-sensitive material is less than 2.0 g.
摘要:
A silver halide color photographic material comprising a support having thereon at least one silver halide emulsion layer, wherein the material contains at least one compound represented by general formula (I) described below and at least one compound represented by general formula (II) described below.A--PDI (I)wherein A represents a group capable of releasing PDI upon reaction with an oxidation product of a developing agent; and PDI represents a group which forms a development inhibitor upon reaction with an oxidation product of a developing agent after being released from A; ##STR1## wherein R.sub.1 represents a hydrogen atom or a substituent; X represents a hydrogen atom or a group capable of being released upon coupling; Za, Zb and Zc each represents a methane group, a substituted methine group, .dbd.N-- or --N--, wherein one of the Za--Zb bond and the Zb--Zc bond is a double bond and the other is a single bond; wherein R.sub.1 or a substituted methine group represented by Za, Zb or Zc may be a divalent group which forms a polymer, including a dimer; and wherein X does not represent a group of a development inhibitor or a precursor thereof. The silver halide color photographic material has excellent sharpness and color reproducibility.