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    • 6. 发明授权
    • Silver halide photographic material
    • 卤化银照相材料
    • US4500633A
    • 1985-02-19
    • US466590
    • 1983-02-15
    • Hiroshi MenjoYoshikazu Watanabe
    • Hiroshi MenjoYoshikazu Watanabe
    • G03C7/26G03C7/30G03C7/305G03C7/32G03C1/46
    • G03C7/30594G03C7/3003Y10S430/158
    • A silver halide photographic material having formed on a support two or more layers that have different light sensitivities but have substantially the same color sensitivity is disclosed. In the material, the layer having the highest light sensitivity contains only a compound of formula (I) as a DIR compound and at least one of the remaining layers contains at least one compound of formula (II) as a DIR compound:A--TIME--Z (I)A--Z (II)wherein A is a coupling component capable of reaction with the oxidized product of a color developing agent to release the group TIME--Z (wherein TIME represents a timing group and Z represents a development retarder). The photographic material has improved sharpness and granularity and wide latitude for exposure.
    • 公开了一种卤化银照相材料,其在支撑体上形成具有不同光敏度但具有基本上相同颜色灵敏度的两层或多层。 在该材料中,具有最高光敏度的层仅含有作为DIR化合物的式(I)化合物,并且其余层中的至少一层含有至少一种作为DIR化合物的式(II)化合物:A-TIME -Z(I)AZ(II)其中A是能够与彩色显影剂的氧化产物反应以释放基团TIME-Z(其中TIME表示定时基团,Z表示显影缓凝剂)的偶联组分。 照相材料具有改善的锐度和粒度以及宽的曝光宽容度。