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1.发明授权Silver halide photographic material comprising pyridinium carbamoyl hardeners 失效包含吡啶鎓氨基甲酰基硬化剂的卤化银照相材料
公开(公告)号：US5607827A
公开(公告)日：1997-03-04
申请号：US531714
申请日：1995-09-21
申请人： Mark P. Kirk , Stefano Parodi , Paolo Vacca
发明人： Mark P. Kirk , Stefano Parodi , Paolo Vacca
CPC分类号： G03C1/30 , G03C1/0051 , G03C1/047
摘要： The present invention relates to a silver halide photographic material comprising a support and at least one silver halide emulsion layer coated thereon, wherein said silver halide photographic material comprises tabular silver halide grains having an average aspect ratio higher than 3:1 dispersed in highly deionized gelatin, and a pyridinium carbamoyl hardener having the following formula: ##STR1## wherein R.sub.1 and R.sub.2 each independently represents an alkyl group having from 1 to carbon atoms, an aryl group having from 6 to 15 carbon atoms, an aralkyl group having from 7 to 15 carbon atoms, or R.sub.1 and R.sub.2 together form the atoms required to complete a heterocyclic ring, R.sub.3 represents a hydrogen atom, a halogen atom, an alkyl group having from 1 to 10 carbon atoms, an alkoxy group having from 1 to 10 carbon atoms, a carbamoyl group, a ureido group, and R.sub.4 represents an alkylene group having from 1 to 4 carbon atoms or a single chemical bond.
摘要翻译： 本发明涉及一种卤化银照相材料，其包含载体和涂覆有至少一种卤化银乳剂层，其中所述卤化银照相材料包含分散在高度去离子明胶中的平均长宽比高于3:1的片状卤化银颗粒 和具有下式的吡啶鎓氨基甲酰基硬化剂：其中R 1和R 2各自独立地表示具有1至碳原子的烷基，具有6至15个碳原子的芳基，具有7至15个碳原子的芳烷基 碳原子或R 1和R 2一起形成完成杂环所需的原子，R 3表示氢原子，卤素原子，具有1至10个碳原子的烷基，具有1至10个碳原子的烷氧基， 氨基甲酰基，脲基，R 4表示碳原子数1〜4的亚烷基或单个化学键。
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公开(公告)号：US5583255A
公开(公告)日：1996-12-10
申请号：US420112
申请日：1995-04-11
IPC分类号： G03C1/498
CPC分类号： G03C1/49854
摘要： Photothermographic elements capable of producing a high density yellow or magenta image upon image-wise exposure and thermal development at a relatively low temperature and for a short period of time are described. The photothermographic elements of the invention comprise coated on a support base at least one light-sensitive emulsion layer comprising (a) a leuco dye reducing reducing agent, (b) a photosensitive silver halide, (c) an organic silver compound capable of being reduced by the leuco dye reducing agent, and (d) a binder; wherein the leuco dye reducing agent thereto comprises a chromogenic yellow or magenta leuco dye compound.The photothermographic elements of the invention may be used to obtain yellow and magenta images of suitable density in single color or multicolor photothermographic articles. At the same time the chromogenic leuco dye is stable enough not to be oxidized by oxygen of the air or by simple heating and to limit the fog formation after development.
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公开(公告)号：US06518005B2
公开(公告)日：2003-02-11
申请号：US09877467
申请日：2001-06-08
IPC分类号： G03C146
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): 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。
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4.发明授权Light-sensitive photographic materials comprising tabular silver halide grains and azodicarbonamide derivatives 失效包含片状卤化银颗粒和偶氮二甲酰胺衍生物的感光照相材料
公开(公告)号：US5731141A
公开(公告)日：1998-03-24
申请号：US651068
申请日：1996-05-21
申请人： Isabella Cogliolo , Ivano Delprato , Luca Ceruti , Stefano Mana , Stefano Parodi
发明人： Isabella Cogliolo , Ivano Delprato , Luca Ceruti , Stefano Mana , Stefano Parodi
CPC分类号： G03C1/0051 , G03C1/10 , G03C1/34
摘要： The present invention describes a light-sensitive silver halide photographic material comprising a support and silver halide emulsion layer or layers, wherein at least one of said silver halide emulsion layers contains tabular silver halide grains having an average diameter to thickness ratio of at least 2:1 and at least one azodicarbonamide derivative.
摘要翻译： 本发明描述了一种感光卤化银照相材料，其包括载体和卤化银乳剂层，其中至少一种所述卤化银乳剂层含有平均直径与厚度比至少为2:1的片状卤化银颗粒， 1和至少一种偶氮二甲酰胺衍生物。
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5.发明授权
公开(公告)号：US5432041A
公开(公告)日：1995-07-11
申请号：US161900
申请日：1993-12-03
CPC分类号： G03C1/49827 , G03C1/49854
摘要： Photothermographic elements capable of producing a high density yellow or magenta image upon image-wise exposure and thermal development at a relatively low temperature and for a short period of time are described. The photothermographic elements of the invention comprise coated on a support base at least one light-sensitive emulsion layer comprising (a) a leuco dye reducing reducing agent, (b) a photosensitive silver halide, (c) an organic silver compound capable of being reduced by the leuco dye reducing agent, and (d) a binder; wherein the leuco dye reducing agent thereto comprises a chromogenic yellow or magenta leuco dye compound.The photothermographic elements of the invention may be used to obtain yellow and magenta images of suitable density in single color or multicolor photothermographic articles. At the same time the chromogenic leuco dye is stable enough not to be oxidized by oxygen of the air or by simple heating and to limit the fog formation after development.
摘要翻译： 描述了能够在相对低的温度和短时间内在成像曝光和热显影时产生高密度黄色或品红色图像的光热敏成像元件。 本发明的光热敏成像元件包括在支撑基底上涂覆至少一种感光乳剂层，其包含（a）无色染料还原还原剂，（b）光敏卤化银，（c）能够还原的有机银化合物 通过无色染料还原剂，和（d）粘合剂; 其中所述无色染料还原剂包含显色黄色或品红色无色染料化合物。 本发明的光热敏成像元件可用于获得单色或多色光热成像制品中适合密度的黄色和品红色图像。 同时，显色无色染料足够稳定，不会被空气的氧气或简单的加热氧化，并且限制了显影后的雾形成。
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