摘要:
A photographic light-sensitive element is described comprising a support having provided thereon at least one of a light-sensitive silver halide emulsion layer and an image-receiving layer, in which a layer comprising a light-reflective organic polymer is provided between the support and the light-sensitive silver halide layer or the image-receiving layer. The light-reflective organic polymer layer serves as a stripping layer without retarding image-formation.
摘要:
A silver halide photographic light-sensitive material containing, in at least one layer thereof, a compound capable of releasing a fogging agent upon an oxidation-reduction reaction with an oxidation product of a developing agent under an alkaline condition. The material has an increased sensitivity, an increased contrast and an accelerated development rate.
摘要:
A photographic element comprising at least one layer containing a polymeric mordant represented by formula (I) ##STR1## wherein A represents a repeating unit derived from a copolymerizable monomer having at least two ethylenically unsaturated groups;B represents a repeating unit derived from a copolymerizable ethylenically unsaturated monomer other than the repeating unit of A and the repeating unit having the copolymerization ratio of z;R.sup.1 represents a hydrogen atom or a lower alkyl group;R.sup.2, R.sup.3, and R.sup.4 each represents an unsubstituted or substituted alkyl or aralkyl group, or two or more of R.sup.2, R.sup.3, and R.sup.4 are bonded to form a cyclic structure together with the adjacent nitrogen atom, and the total number of carbon atoms of R.sup.2, R.sup.3, and R.sup.4 is 12 or more;R.sup.5 represents an unsubstituted or substituted alkyl, alkoxy, or acylamino group having 1 to 20 carbon atoms, or a halogen atom;m is 0, 1 or 2, and n is an integer of from 1 to 12;X.sup..crclbar. represents an anion; andx is from 30 to 80 mol %, y is from 0 to 60 mol %, and z is from 10 to 70 mol %.
摘要:
A silver halide photographic light-sensitive material is described, comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer associated with a substantially immobile, positive one-equivalent redox compound capable of releasing a photographically useful compound or a precursor thereof as a result of a redox reaction, said compound being represented by formula (I) ##STR1## wherein Acp represents an anion center precursor capable of causing --Z--Q to be released by a quinonemethide type releasing reaction when being reduced R.sup.1 and R.sup.2 each represents a hydrogen atom, a substituted or unsubstituted aryl group; Z represents a divalent atomic group; Q represents a group capable of becoming a photographically useful compound or a precursor thereof when released, provided that Q does not contain an atom or atomic group which functions as an electrophilic center that induces an intramolecular substitution reaction; Ball represents a ballast group; M represents a substituent; A represents an organic group which connects Acp, ##STR2## M, and Ball; and n and m each represents an integer of 1 or more.
摘要:
A color diffusion transfer photographic light-sensitive material comprising a support, at least one silver halide layer on the support, said emulsion layer being associated with a dye-providing compound, and an image-receiving layer on the same support as above or on another support, wherein said photographic light-sensitive material is able to provide a transferred dye image composed of a diffusible dye or its precursor released or derived from the dye-providing compound as a result of development under a strong alkaline condition in the presence of at least one meso ionic 1,2,4-triazolium-3-thiolate compound. In the present material, fog can be prevented efficiently without causing the problems of a reduction in sensitivity and a decrease in rate of development.
摘要:
A photographic light-sensitive material comprising a support having provided thereon at least one light-sensitive silver halide emulsion layer in combination with an immobile LDA compound represented by the following general formula (I): ##STR1## wherein n, x, y and z each stands for an integer of 1 or 2; m stands for an integer of 1 or more; D stands for a group containing an electron donor or its precursor moiety; A stands for an organic group linking Nup to --E--Q--Col or D; Nup stands for a precursor of a nucleophilic group; E stands for an electrophilic center; Q is a divalent group; Col stands for a group containing a dye or its precursor moiety; Ball stands for a ballast group; L stands for a linking group; and M stands for an optional substituent, said LDA compound being capable of releasing a diffusible dye or its precursor upon redox reaction.
摘要:
A diffusion transfer color photographic element wherein (1) a light-sensitive sheet comprising a support having superposed thereon at least one silver halide emulsion layer having associated therewith a color image providing compound and (2) a cover sheet comprising a support having thereon at least one neutralizing layer and at least one neutralization timing layer are arranged so that they can contact each other with their supports remote the area of contact and which is so designed that a processing composition may be spread in a uniform layer between the light-sensitive sheet (1) and the cover sheet (2), further wherein a protective layer which consists essentially of a hydrophilic colloid is provided as the topmost layer of the light-sensitive sheet (1) and there is provided an ultraviolet absorbant-containing layer for light-sensitive sheet (1) adjacent the protective layer. The element exhibits improved storage stability.