公开(公告)号：US6020115A

公开(公告)日：2000-02-01

申请号：US102846

申请日：1998-06-23

申请人： Ferdinando Orengo ,  Luisa Tavella ,  Antonio Poggi

发明人： Ferdinando Orengo ,  Luisa Tavella ,  Antonio Poggi

IPC分类号： G03C7/20 ,  G03C1/74 ,  G03C7/30 ,  G03C7/305 ,  G03C7/32 ,  G03C7/384 ,  G03C1/08

CPC分类号： G03C7/3029 ,  G03C7/3041 ,  G03C7/3225 ,  Y10S430/158

摘要： Multilayer color photographic element having on a support base blue-, green- and red-sensitive silver halide emulsion layers respectively associated with non-diffusing yellow, magenta and cyan dye-forming couplers, wherein (a) the green-sensitive silver halide emulsion layer comprises three green-sensitive silver halide emulsion layers, respectively uppermost, intermediate and lowermost, sensitive to the same spectral region of visible light, in which the sensitivity of the three green-sensitive silver halide emulsion layers decreases in order from the uppermost silver halide emulsion layer to the lowermost silver halide emulsion layer, (b) each of the three green-sensitive silver halide emulsion layers contains an 1-phenyl-3-anilino-4-phenylthio-5-pyrazolone magenta dye-forming coupler, (c) the weight ratio of the coupler to silver halide (expressed as silver) in the highest sensitivity uppermost green-sensitive silver halide emulsion layer is higher than the weight ratio of the coupler to silver halide (expressed as silver) in the medium sensitivity intermediate green-sensitive silver halide emulsion layer, and (d) the highest sensitivity uppermost green-sensitive silver halide emulsion layer contains a DIR coupler. The color photographic elements containing the aforesaid layer arrangement provide good speed-granularity relationship, good interimage effects, and less changes in the photographic properties such as decrease in color density and increase in fog when brought in contact with formaldehyde gas during storage prior to color development.

摘要翻译： 多层彩色照相元件具有分别与非扩散黄色，品红色和青色染料形成成色剂相关的蓝色，绿色和红色感光卤化银乳剂层的支持基底，其中（a）感绿卤化银乳剂层 包括对可见光的相同光谱区域敏感的三个感绿卤化银乳剂层，分别为最上，中，下三个，其中三种感绿卤化银乳剂层的灵敏度从最上面的卤化银乳剂 （b）三个感绿卤化银乳剂层中的每一个含有1-苯基-3-苯胺基-4-苯硫基-5-吡唑啉酮品红色染料形成成色剂，（c） 最高灵敏度最高的绿敏卤化银乳剂层中成色剂与卤化银（以银表示）的重量比高于连接器的重量比 （d）最高灵敏度的最高感绿卤化银乳剂层含有DIR成色剂。 包含上述层布置的彩色照相元件提供良好的速度 - 粒度关系，良好的图像间效应，以及较少的照相特性变化，例如在着色显影之前保存期间与甲醛气体接触时的着色密度降低和雾度增加 。

公开(公告)号：US5663040A

公开(公告)日：1997-09-02

申请号：US605573

申请日：1996-02-22

申请人： Massimo Bertoldi ,  Enzo Coraluppi ,  Anna Marie Canuti ,  Ferdinando Orengo

发明人： Massimo Bertoldi ,  Enzo Coraluppi ,  Anna Marie Canuti ,  Ferdinando Orengo

IPC分类号： G03C7/00 ,  G03C7/305 ,  G03C7/384

CPC分类号： G03C7/30529

摘要： Silver halide photographic element comprising a support and at least one silver halide emulsion layer having therein a 2-equivalent 5-pyrazolone magenta coupler represented by the formula: ##STR1## wherein a represents an integer from 0 to 3,b represents an integer from 0 to 2,R.sub.1 and R.sub.2 are each individually hydrogen, alkyl, alkoxy, halogen, aryl, aryloxy, acylamino, sulfonamido, sulfamoyl, carbamoyl, arylsulfonyl, aryloxycarbonyl, alkoxycarbonyl, alkoxysulfonyl, aryloxysulfonyl, alkylureido, arylureido, nitro, cyano, hydroxyl or carboxy group,R.sub.3 is halogen atom, alkyl or aryl group,X is a direct link or a linking group,Ball is a ballasting group which renders a group to which is attached non-diffusible in photographic coatings, andthe sum of the sigma values of R.sub.1, R.sub.3 and X-Ball is less than 1.3.

摘要翻译： 卤化银照相元件包括载体和至少一个卤化银乳剂层，其中具有由下式表示的2-当量的5-吡唑啉酮品红成色剂：其中a表示0至3的整数，b表示0的整数 至2，R 1和R 2各自独立地为氢，烷基，烷氧基，卤素，芳基，芳氧基，酰氨基，亚磺酰氨基，氨磺酰基，氨基甲酰基，芳基磺酰基，芳氧基羰基，烷氧基羰基，烷氧基磺酰基，芳氧基磺酰基，烷基脲基，芳基脲基，硝基，氰基，羟基或羧基 基团，R 3是卤素原子，烷基或芳基，X是直链或连接基团，Ball是使得在照相涂层中不扩散的组附加的压载组，并且σ R1，R3和X-Ball小于1.3。