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    • 1. 发明授权
    • Light-sensitive silver halide photographic elements containing yellow
filter dyes
    • 含有黄色滤光染料的感光卤化银照相元件
    • US6045985A
    • 2000-04-04
    • US198818
    • 1998-11-23
    • Piero CavalleriSergio Massirio
    • Piero CavalleriSergio Massirio
    • G03B7/18G03C1/83G03C7/30G03C1/46
    • G03C1/832G03C7/3029G03C7/3041
    • Photographic elements are disclosed having on a support a silver halide emulsion layer sensitive to radiation other than blue light in addition to its intrinsic sensitivity to blue region, and a yellow filter layer between the silver halide emulsion layers and the source of exposure, the yellow filter layer containing a yellow filter dye represented by the structural formula: ##STR1## wherein: R is hydrogen, alkyl group or aryl group;R.sub.1 is aryl group or heterocyclic group;X is O or N--R.sub.2 where R.sub.2 is hydrogen or alkyl group;Y is N--R.sub.3 where R.sub.3 is hydrogen or alkyl group;n is 0 or 1;Z is hydrogen, alkyl group or aryl group;W is hydrogen, or W and Z, taken together, represent the atoms necessary to form an aryl group.In particular, multilayer color photographic elements are disclosed having thereon a support base, in order from the support, red-, green-, and blue-sensitive silver halide emulsion layers respectively associated with non-diffusing cyan, magenta and yellow dye-forming couplers, wherein a yellow filter layer containing the yellow filter dyes of the above structural formula is positioned below the blue-sensitive layer(s) and above the green-sensitive layer(s) and the red-sensitive layer(s).The photographic elements herein disclosed provide yellow filter layers which have the required spectral absorption characteristics, are easily bleached during photographic processing steps, and do not suffer from stain problems after processing and incubative aging.
    • 公开了在支持体上具有除蓝色光之外的辐射敏感的卤化银乳剂层的照相元件以及其对蓝色区域的固有敏感性,以及在卤化银乳剂层和曝光源之间的黄色滤光层,黄色滤光片 该层包含由下列结构式表示的黄色滤光染料:其中:R是氢,烷基或芳基; R1是芳基或杂环基; X是O或N-R 2,其中R 2是氢或烷基; Y是N-R3,其中R3是氢或烷基; n为0或1; Z是氢,烷基或芳基; W是氢,或W和Z一起表示形成芳基所需的原子。 特别地,公开了其上具有支撑基底的多层彩色照相材料,其依次是分别与不扩散青色,品红色和黄色染料形成成色剂相关联的载体,红,绿和蓝敏感的卤化银乳剂层 其中含有上述结构式的黄色滤光染料的黄色滤光层位于蓝色感光层之下并且位于感光层和红色敏感层之上。 本文公开的照相元件提供具有所需光谱吸收特性的黄色滤光层,在照相处理步骤期间容易漂白,并且在处理和温育老化之后不会出现染色问题。
    • 2. 发明授权
    • Silver halide multilayer color photographic material
    • 卤化银多层彩色照相材料
    • US06518005B2
    • 2003-02-11
    • US09877467
    • 2001-06-08
    • Piero CavalleriRaffaella BiavascoStefano Parodi
    • Piero CavalleriRaffaella BiavascoStefano Parodi
    • G03C146
    • G03C1/832G03C7/3029G03C2007/3039G03C2200/23G03C2200/25
    • 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): 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.
    • 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。