公开(公告)号：US20020031735A1

公开(公告)日：2002-03-14

申请号：US09877467

申请日：2001-06-08

申请人： Ferrania, S.P.A.,

发明人： Piero Cavalleri ,  Raffaella Biavasco ,  Stefano Parodi

IPC分类号： G03C001/815 ,  G03C001/83 ,  G03C007/30

CPC分类号： G03C1/832 ,  G03C7/3029 ,  G03C2007/3039 ,  G03C2200/23 ,  G03C2200/25

摘要： The present invention refers to photographic elements having, coated on a support base, at least one silver halide emulsion layer sensitized to a radiation different from the blue one in addition to its intrinsic sensitivity to the blue region, and a yellow filter layer positioned between said at least one silver halide emulsion layer and the exposure source, where such yellow filter layer contains a yellow filtering dye represented by the formula (1): 1 wherein R and R1 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted alkylene group, a substituted or unsubstituted heterocyclic group or a substituted or unsubstituted aryl group; R2, R3 and R4 each independently represent a hydrogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group and R3 and R4 may be combined to form a 6-membered ring.

摘要翻译： 本发明涉及具有涂覆在支撑基底上的至少一种卤化银乳剂层的照相元件，除了对蓝色区域的固有敏感性以外，对与蓝色不同的辐射敏感的卤化银乳剂层和位于所述蓝色区域之间的黄色滤光层 至少一个卤化银乳剂层和曝光源，其中这种黄色过滤层含有由式（1）表示的黄色过滤染料：其中R和R 1各自独立地表示氢原子，取代或未取代的烷基，取代的 或未取代的亚烷基，取代或未取代的杂环基或取代或未取代的芳基; R2，R3和R4各自独立地表示氢原子，取代或未取代的烷基，取代或未取代的芳基，R3和R4可以组合形成6元环。