Yellow layer for color photographic elements
    1.
    发明授权
    Yellow layer for color photographic elements 失效
    彩色摄影元素黄色层

    公开(公告)号:US5491052A

    公开(公告)日:1996-02-13

    申请号:US477723

    申请日:1995-06-07

    IPC分类号: G03C7/388 G03C7/396

    摘要: It has been discovered that when polyalkylene oxide compounds or block polymeric or block oligomeric surface active compounds comprising at least a polyoxypropylene (POP) block and a polyoxyethylene (POE) block are added to conventional dispersions of yellow couplers (that is dispersions in which the dispersed particles have a particle size of 0.1 to 0.6 .mu.m), such dispersions in a coated silver halide photographic element produce substantially higher dye yield compared to the conventional dispersion without any additive. Further, the yellow dye formed from such dispersions containing the addenda of this invention are substantially more light stable compared to dispersions that does not contain such addenda.The invention is carried out just by adding required amounts of the said polyoxyethylene (POE)--polyoxypropylene (POP) compound to a preformed milled coupler dispersion prior to coating the photographic element.

    摘要翻译: 已经发现,当将至少包含聚氧丙烯(POP)嵌段和聚氧乙烯(POE)嵌段的聚环氧烷化合物或嵌段聚合或嵌段低聚表面活性化合物加入到黄色成色剂的常规分散体中时(即其中分散的 颗粒具有0.1至0.6μm的粒度),与没有任何添加剂的常规分散体相比,在涂覆的卤化银照相元件中的这种分散体产生显着更高的染料产率。 此外,由含有本发明添加剂的这种分散体形成的黄色染料与不含这种添加剂的分散体相比,显着更稳定。 本发明仅在涂布照相元件之前,将所需量的所述聚氧乙烯(POE) - 聚氧丙烯(POP)化合物添加到预先形成的研磨的偶联剂分散体中进行。

    Photographic element
    4.
    发明授权
    Photographic element 失效
    摄影元素

    公开(公告)号:US06420103B1

    公开(公告)日:2002-07-16

    申请号:US09266178

    申请日:1999-03-10

    IPC分类号: G03C138

    摘要: Silver halide light sensitive photographic elements are disclosed comprising a support bearing at least one yellow image forming hydrophilic colloid layer comprising a yellow dye-forming coupler and a trialkyl citrate coupler solvent of the formula C3H4(OH)(CO2R)3, where each R independently represents an alkyl group and the total number of carbon atoms for the three R groups combined is greater than 6. The combination of such citrate ester solvents with yellow dye forming couplers in photographic elements leads to both good reactivity and good image-dye light stability. The advantages of the invention are particularly useful for photographic color paper elements on reflective supports.

    摘要翻译: 公开了卤化银光敏感照相材料,其包括载体,该载体承载至少一个黄色图像形成亲水胶体层,其包含黄色染料形成成色剂和式C 3 H 4(OH)(CO 2 R)3的三烷基柠檬酸酯偶联剂溶剂,其中每个R独立地 代表烷基,并且三个R基团的总碳原子数大于6.这些柠檬酸酯溶剂与形成成色剂的黄色染料在照相元件中的组合导致良好的反应性和良好的图像染料光稳定性。 本发明的优点对于反射支撑件上的照相彩色纸元件特别有用。

    Photographic element with yellow dye-forming coupler and stabilizing compound having improved light stability
    5.
    发明授权
    Photographic element with yellow dye-forming coupler and stabilizing compound having improved light stability 失效
    具有黄色染料形成成色剂的照相元件和具有改善的光稳定性的稳定化合物

    公开(公告)号:US06413707B1

    公开(公告)日:2002-07-02

    申请号:US09943119

    申请日:2001-08-30

    IPC分类号: G03C108

    CPC分类号: G03C7/3013 G03C7/39236

    摘要: A photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide based yellow dye forming coupler and a compound of the following Formula I: wherein R1, R2 and R3 are each independently aromatic, cyclic, linear, or branched chained hydrocarbon groups. The invention provides photographic elements which exhibit exceptional yellow dye light stability, and which retain desirable properties derived from the use of acetanilide based yellow dye-forming couplers, particularly when used in combination with substituted phenolic and/or thiomorpholine dioxide stabilizers. In addition to stabilizing properties, compounds of Formula I have organic solvent properties, and accordingly may be advantageously used partly or totally in place of conventional high boiling permanent and/or auxiliary organic coupler solvents to disperse the acetanilide-based couplers.

    摘要翻译: 公开了一种照相元件,其包含卤化银乳剂层,其具有与其形成的基于乙酰苯胺的黄色染料形成成色剂和下式I的化合物:其中R 1,R 2和R 3各自独立地为芳族,环状,直链或支链链烃基 。 本发明提供了显示出特别的黄色染料光稳定性的照相元件,并且其保留了由使用基于乙酰苯胺的形成黄色染料的成色剂得到的所需性质,特别是当与取代的酚类和/或硫代吗啉二氧化物稳定剂组合使用时。 除了稳定性能之外,式I化合物具有有机溶剂性质,因此可有利地部分或全部地代替常规的高沸点永久和/或辅助有机成色剂溶剂来分散基于乙酰苯胺的成色剂。

    Photographic element with yellow dye-forming coupler and stabilizing compounds
    6.
    发明授权
    Photographic element with yellow dye-forming coupler and stabilizing compounds 失效
    具有黄色染料成色剂和稳定化合物的摄影元件

    公开(公告)号:US06312881B1

    公开(公告)日:2001-11-06

    申请号:US09483396

    申请日:2000-01-14

    IPC分类号: G03C108

    摘要: In accordance with one embodiment of the invention, a photographic element is disclosed comprising a silver halide emulsion layer having associated therewith an acetanilide-based yellow dye forming coupler and a stabilizer compound of the formula S-I: wherein R0 represents an aryl or heterocyclic group; Ra is H or a substituent group; L represents an alkylene linking group and p represents 0 or 1; and Rb is a substituent group, provided that substituent groups represented by Ra and Rb may be joined to form a ring. The presence of substituted amine compounds of formula S-I improves the efficiency of dye formation reaction for acetanilide-based couplers. When used in combination with known bis-phenolic stabilizers, substantial improvements in the light stability of the image dyes can be also be obtained. Accordingly, photographic elements of the present invention upon exposure and photographic processing exhibit good activity and yield yellow dye images that have low fading when exposed to light.

    摘要翻译: 根据本发明的一个实施方案,公开了一种照相材料,其包含卤化银乳剂层,其具有与基于乙酰苯胺的黄色染料形成成色剂和式S-I的稳定剂化合物:其中R 0表示芳基或杂环基; Ra是H或取代基; L表示亚烷基连接基团,p表示0或1; 并且R b是取代基,条件是由R a和R b表示的取代基可以连接形成环。 式S-1的取代的胺化合物的存在提高了基于乙酰苯胺的成色剂的染料形成反应的效率。 当与已知的双酚稳定剂组合使用时,也可以获得图像染料的光稳定性的显着改善。 因此,本发明的照相元件在曝光和照相处理时表现出良好的活性,并产生当暴露于光时具有低褪色的黄色染料图像。