摘要:
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing at least 1.0 x 10⁻⁴ gram equivalent of an anionic surface active material as anion per gram of a hydrophilic dispersion medium in the emulsion layer, the material having dispersed in the emulsion layer a light-collecting dye that has an emission band overlapping at least partially with the optical absorption band of a spectral sensitizing dye on a silver halide grain present in the emulsion layer, the light-collecting dye having an emission quantum yield of at least 0.1 at a concentration of 10⁻⁴ mol/dm³ in dry gelatin at room temperature, with the proviso that the light-collecting dye and the spectral sensitizing dye may be the same compound.
摘要:
@ A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of the silver halide photographic material and wherein an organic material is contained in at least one of the light-sensitive silver halide emulsion layer and the other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in the layers of the silver halide photographic material is washed out from the layer during development processing: wherein A represents an alkyl group, an alkenyl group or an aryl group, which has from 8 to 25 carbon atoms; X represents -0-,
wherein R represents an alkyl group having from 1 to 10 carbon atoms or -Y-B; Y represents a group consisting of at least one of the units (CH 2 CH 2 ) a and
wherein a represents from 5 to 50; and b represents from 2 to 20; and B represents hydrogen or an alkyl group having not more than 8 carbon atoms, an alkylcarbonyl group having not more than 8 carbon atoms, or a phenyl I group having not morethan 8 carbon atoms. I
摘要:
A silver halide photographic material capable of providing very high contrast image and having improved safelight safety is described, which comprises a support having thereon at least one silver halide emulsion layer, and containing in the silver halide emulsion layer or another hydrophilic colloid layer (i) a compound represented by formula (I) wherein PWR represents a group capable of releasing Time LA upon being reduced; Time represents a group capable of releasing LA after being released from PWR, t is 0 or 1; and LA represents a group having an absorption maximum in the wavelength region longer than 310 nm, (ii) a hydrazine derivative, and (iii) at least one compound represented by formulae (IX) and (X) wherein R 91 , R 82 , R 93 , and R 94 , which may be the same or different, each represents hydrogen, an alkyl group, an aryl group, an amino group, a hydroxyl group, an alkoxy group, an alkylthio group, a carbamoyl group, a halogen atom, a cyano group, a carboxyl group, an alkoxycarbonyl group or a heterocyclic group and R 91 and R 92 or R 92 and R 93 may be linked to form a 5- or 6-membered ring; provided that at least one of R 31 and R 93 represents a hydroxyl group.
摘要:
@ A silver halide photographic material comprising a support having thereon at least one light-sensitive silver halide emulsion layer and at least one other hydrophilic colloid layer, wherein at least one compound represented by formula (I) is contained in at least one layer of the silver halide photographic material and wherein an organic material is contained in at least one of the light-sensitive silver halide emulsion layer and the other hydrophilic colloid layer such that at least 10% by weight of the organic material originally present in the layers of the silver halide photographic material is washed out from the layer during development processing: wherein A represents an alkyl group, an alkenyl group or an aryl group, which has from 8 to 25 carbon atoms; X represents -0-,
wherein R represents an alkyl group having from 1 to 10 carbon atoms or -Y-B; Y represents a group consisting of at least one of the units (CH 2 CH 2 ) a and
wherein a represents from 5 to 50; and b represents from 2 to 20; and B represents hydrogen or an alkyl group having not more than 8 carbon atoms, an alkylcarbonyl group having not more than 8 carbon atoms, or a phenyl I group having not morethan 8 carbon atoms. I
摘要:
Disclosed are oily droplets comprising an oily core containing a compound having an ethylenically unsaturated group and a film formed around the oily core which is composed of a reaction product of the compound having an ethylenically unsaturated group with a water-soluble polymer having a sulfinyl group. Also disclosed are microcapsules comprising the oily droplet and a resin wall formed therearound. Further disclosed are processes for preparing the oily droplets and the microcapsules.
摘要:
A silver halide photographic material comprising a support having thereon at least one silver halide emulsion layer containing at least 1.0 x 10⁻⁴ gram equivalent of an anionic surface active material as anion per gram of a hydrophilic dispersion medium in the emulsion layer, the material having dispersed in the emulsion layer a light-collecting dye that has an emission band overlapping at least partially with the optical absorption band of a spectral sensitizing dye on a silver halide grain present in the emulsion layer, the light-collecting dye having an emission quantum yield of at least 0.1 at a concentration of 10⁻⁴ mol/dm³ in dry gelatin at room temperature, with the proviso that the light-collecting dye and the spectral sensitizing dye may be the same compound.
摘要:
A silver halide photographic material composed of a support having thereon at least one photosensitive silver halide emulsion layer, at least one layer of the material containing a compound of formula (I): A-X-Y-B (I) wherein A represents a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkenyl group or a substituted or unsubstituted aralkyl group, each having from 8 to 25 carbon atoms; X represents R represents an alkyl group having from 1 to 10 carbon atoms or -Y-B; Y represents a group comprising units and wherein a is a number from 5 to 50; b is a number from 2 to 20; c is a number from 0 to 3; d is a number from 0 to 20; R′ represents a hydrogen atom, a methyl group or a phenyl group, with the proviso that, when R′ represents a methyl group or a phenyl group, c represents 0, and when R′ represents a hydrogen atom, c represents a number from 1 to 3; and B represents a hydrogen atom, a substituted or unsubstituted alkyl group having up to 8 carbon atoms or a substituted or unsubstituted phenyl group. The antistatic properties of the material are excellent.