Color reversal photographic light-sensitive material
AssigneeFuji Photo Film Co., Ltd.
InventorsSadanobu Shuto, Yasuhiro Hayashi, Munehisa Fujita, Kazunori Hasebe
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Abstract
A color reversal photographic light-sensitive material is described having at least one light-sensitive silver halide emulsion layer, wherein at least one of said emulsion layer and a layer adjacent thereto contains a silver halide emulsion of silver halide grains containing internal fog centers.
Claims13
A color reversal photographic light-sensitive material having at least one negative working type light-sensitive silver halide emulsion layer, wherein at least one of said emulsion layer and a layer adjacent thereto contains a light-insensitive silver halide emulsion of silver halide grains containing internal fog centers is, wherein said light-insensitive silver halide emulsion comprises core-shell type silver halide grains having a structure such that the surface-fogged silver halide inner core is covered with a silver halide outer shell and wherein the thickness of the outer shell is between 50 and 1,000 .ANG., and wherein said silver halide emulsion of silver halide grains containing fog centers is an emulsion capable of providing (1) almost no increase in density when subjected to 2-minute processing (normal processing), and (2) when subjected to 10-minute processing (push processing), an increase in density as high as at least five times that obtained by the 2-minute processing is obtained, in which the 2-minute processing and the 10-minute processing are carried out by coating the emulsion on a film support in a silver amount coated of 0.5 g.m.sup.2, processing the resulting sample without exposure at 38.degree. C. for 2 minutes (normal processing) and at 38.degree. C. for 10 minutes (push processing) using a developer of the following formulation,
- ______________________________________ Formulation of Developer:
- ______________________________________ Water 700 ml Sodium Tetrapolyphosphate 20 g Sodium Sulfite 2 g Hydroquinone Monosulfonate 30 g Sodium Carbonate (monohydrate) 30 g 1-Phenyl-4-methyl-4-hydroxymethyl-3- 2 g Pyrazolidone Potassium Bromide 2.5 g Potassium Thiocyanate 1.2 g Potassium Iodide (0.1% aq. soln.) 2 ml Water to make 1 liter ______________________________________
A process for forming a positive color image comprising imagewise exposing, black-and-white developing (first development), reversing and color developing a color reversal photographic light-sensitive material having at least one negative working type light-sensitive silver halide emulsion layer, wherein at least one of said emulsion layer and a layer adjacent thereto contains a light-insensitive silver halide emulsion of silver halide grains containing internal fog centers, wherein said light-insensitive silver halide emulsion comprises core-shell type silver halide grains having a structure such that the surface-fogged silver halide inner core is covered with a silver halide outer shell, wherein the thickness of the outer shell is between 50 and 1000 .ANG., and wherein said silver halide emulsion of silver halide grains containing fog centers is an emulsion capable of providing (1) almost no increase in density when subjected to 2-minute processing (normal processing), and (2) when subjected to 10-minute processing (push processing), an increase in density as high as at least five times that obtained by the 2-minute processing is obtained, in which the 2-minute processing and the 10-minute processing are carried out by coating the emulsion on a film support in a silver amount coated of 0.5 g.m.sup.2, processing the resulting sample without exposure at 38.degree. C. for 2 minutes (normal processing) and at 38.degree. C. for 10 minutes (push processing) using a developer of the following formulation,
- ______________________________________ Formulation of Developer:
- ______________________________________ Water 700 ml Sodium Tetrapolyphosphate 20 g Sodium Sulfite 2 g Hydroquinone Monosulfonate 30 g Sodium Carbonate (monohydrate) 30 g 1-Phenyl-4-methyl-4-hydroxymethyl-3- 2 g Pyrazolidone Potassium Bromide 2.5 g Potassium Thiocyanate 1.2 g Potassium Iodide (0.1% aq. soln.) 2 ml Water to make 1 liter ______________________________________
- and said process comprises pushing first development to increase speed.
Dependencies are inferred from the claim text.