发明授权
US06187527B1 Silver halide color reversal lightsensitive material 失效
卤化银颜色反光感材料

  • 专利标题: Silver halide color reversal lightsensitive material
  • 专利标题(中): 卤化银颜色反光感材料
  • 申请号: US09503336
    申请日: 2000-02-14
  • 公开(公告)号: US06187527B1
    公开(公告)日: 2001-02-13
  • 发明人: Nobuyuki HaraguchiKatsuro Nagaoka
  • 申请人: Nobuyuki HaraguchiKatsuro Nagaoka
  • 优先权: JP11-037180 19990216
  • 主分类号: G03C140
  • IPC分类号: G03C140
Silver halide color reversal lightsensitive material
摘要:
A silver halide color reversal lightsensitive material comprising a transparent support and, superimposed thereon, a blue-sensitive emulsion layer unit, a green-sensitive emulsion layer unit and a red-sensitive emulsion layer unit, each of these units comprising at least two emulsion sub-layers having the same color sensitivity but different speeds from each other, wherein the material contains a yellow dye in an amount of 0.15 to 1.0 g/m2 and satisfies the relationship: 0.9≦&ggr;′/&ggr;≦1.25 wherein &ggr; and &ggr;′ each represent a point-gamma value of a portion of the material giving a magenta density of 1.0 when the material was subjected to a development processing comprising an image-wise exposure step, a black and white development step, a reversal processing step, a color development step and a desilvering step thereby forming color reversal images, provided that &ggr; is the point-gamma value attained when a period of the black and white development step was set to the standard period, and &ggr;′ is the point-gamma value attained when the period of the black and white development step was prolonged to attain a higher speed of 0.5 log E.
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