摘要:
A silver halide emulsion is disclosed, comprising tabular grains having an aspect ratio of 5 or more, the tabular grains further having dislocation lines of 30 or more per a grain, in a fringe portion of the grain and the tabular grains each containing silver iodide, the content of which gradually and continuously varies in the direction of from the grain center to the edge.
摘要:
A silver halide emulsion is disclosed, comprising silver halide grains having a variation coefficient of a grain diameter of 20% or less, at least 50% of total grain projected area being accounted for by tabular silver halide grains having an aspect ratio of 2 or more, said tabular grains each having 10 or more dislocation lines per grain in the peripheral region of the grain and having a variation coefficient of dislocation line length of 20% or less. A color photographic material by use of the emulsion is also disclosed.
摘要:
A silver halide color photographic material is disclosed, comprising a support having thereon a silver halide emulsion layer containing silver halide grains having a variation coefficient of grain size of 20% or less and at least 50% of the total grain projected area is accounted for by tabular grains having an aspect ratio of 5 or more; and the silver halide grains having an average silver iodide content of 4 mol % or more and a distinct core/shell structure comprising a core portion having a silver iodide content of 15 mol % or less, a shell portion having a silver iodide content of 8 mol % or more, and a surface phase having a silver iodide content higher than the average silver iodide content.
摘要:
A silver halide color photographic light-sensitive material is provided, wherein at least one spectral-sensitive layer comprises two or more silver Halide emulsion layers each containing monodispersed silver halide grains having two parallel twin planes and an aspect ratio of 3 or less, having development starting points localized at specific sites on the grain surface or in the vicinity thereof.
摘要:
A silver halide emulsion is disclosed, comprising a dispersing medium and silver halide grains having a variation coefficient of grain size distribution of not more than 20%, at least 50% of total grain projected area of the emulsion being accounted for by tabular grains an aspect ratio of at least 5, the tabular grains each having a surface region having an iodide content more than an average iodide content of the grains, the tabular grains having dislocation lines in a central region and a peripheral region of the major faces, the peripheral region having a silver chalcogenide nucleus-containing phase, the central region having silver nucleus-containing phase, and the peripheral region having at least 10 dislocation lines per grain.
摘要:
A silver halide photographic emulsion comprising silver halide grains which are prepared by a process comprising forming the silver halide grains in the presence of a dispersing medium and chemically sensitizing the silver halide grains formed, wherein, in the step of forming the silver halide grains, at least a part of the dispersing medium is a gelatin having an adenine content of 0.2 .mu.g or less per g of gelatin and the silver halide grains are chemically sensitized in the presence of a compound represented by the following formula. ##STR1##
摘要:
A silver halide photographic light-sensitive material is provided, comprising silver halide-grains which meet the following requirements:(1) the silver halide grains are formed from seed crystals through the growth of the crystals, wherein a silver halide phase formed in each grain, before 30% of the addition amount of silver is supplied, is formed while the intergrain distance of individual silver halide grains contained in the reaction liquor being kept within a range of 0.1 to 2.0 .mu.m;(2) the silver halide grains each have, in respect of distance L from the grain center to the grain surface, a point at which the content of silver iodide becomes maximum within distance L.sub.1 from the grain center to 0.67 L, and a point at which the content of silver iodide becomes minimum within distance L.sub.2 from 0.58 L to the grain surface and, in each grain, the silver iodide content shows a substantially monotonous decrease in the range from L.sub.1 to L.sub.2, and (L.sub.2 -L.sub.1)/L>0.20 is satisfied.
摘要:
A silver halide photographic light-sensitive material comprising a support having thereon a silver halide emulsion layer containing silver halide grains which meet the following requirements (1) and (2):(1) the silver halide grains are formed in the presence of an oxidizing agent, and(2) the silver halide grains each have, in respect of distance L from the grain center to the grain surface, a point at which the content of silver iodide becomes maximum within distance L.sub.1 from the grain center to 0.67 L, and a point at which the content of silver iodide becomes minimum within distance L.sub.2 from 0.58 L to the grain surface and, in each grain, the silver iodide content shows a substantially monotonous decease in the range from L.sub.1 to L.sub.2, and(L.sub.2 -L.sub.1)/L>0.20is satisfied.