申请人:Ciba-Geigy AG
公开号:US04387158A1
公开(公告)日:1983-06-07
Photographic silver halide material which comprises at least one silver halide emulsion layer coated on a support, there being present in the silver halide emulsion layer(s), or in a layer in operative contact with at least one silver halide emulsion layer, a compound of the formula ##STR1## wherein W is hydrogen, alkyl, --NHCOR.sup.1 or --COR.sup.1, wherein R.sup.1 is alkyl or alkenyl, cycloalkyl, aralkyl, aryl, phenoxymethylamino or halogen; X is a substituent in the coupling position and is a leaving group selected from hydrogen, chlorine, bromine, --SR.sup.11 wherein R.sup.11 is alkyl, aryl or a heterocyclic group, or X is a nitrogen-containing heterocyclic residue attached at a ring nitrogen atom; Y is a group having the formula ##STR2## wherein Q is selected from the residues: (a) --COOR.sup.4 or --CONR.sup.4 R.sup.5 where R.sup.4 is hydrogen, alkyl optionally interrupted by 1 or more oxygen atoms, alkenyl, cycloalkyl, aralkyl or aryl, and R.sup.5 is hydrogen or alkyl or R.sup.4 and R.sup.5, together with the nitrogen atom to which they are each bonded, may form a 5- or 6-membered heterocyclic ring; (b) --OM wherein M is R.sup.5 or --COR.sup.6 wherein R.sup.5 is as defined above and R.sup.6 is hydrogen, alkyl, alkenyl, cycloalkyl, aralkyl or aryl; (c) --NR.sup.7 R.sup.8 wherein R.sup.7 is hydrogen or alkyl and R.sup.8 is hydrogen, or acyl or R.sup.7 and R.sup.8, together with the nitrogen atom to which they are bonded, form a 5- or 6-membered heterocyclic ring; (d) --PO(OR.sup.9)(O).sub.x R.sup.10 wherein x is 0 or 1, R.sup.9 is hydrogen or alkyl, R.sup.10 is hydrogen or alkyl if x is 1, and R.sup.10 is alkyl if x is 0 or R.sup.9 and R.sup.10 may be linked together to form an alkylene chain; (e) --SO.sub.2 T where T is --OH or --NR.sup.4 R.sup.5 wherein R.sup.4 and R.sup.5 are as defined above or (f) --CN; n is an integer from 1 to 20; k is 1 or 2; R.sup.2 and R.sup.3 independently are alkyl and, when Q is --CO.sub.2 R.sup.4, either R.sup.2 or R.sup.3 is optionally substituted by one or two --CO.sub.2 R.sup.4 groups, or at least one of R.sup.2 and R.sup.3 is so linked to the residue --C.sub.n H.sub.2n+1-k that there is formed a cycloalkylene residue substituted by --(CO.sub.2 R.sup.4)k in which the groups R.sup.4 are the same or different and wherein R.sup.4 and k are as defined above; or salts thereof with acids or bases. The resorcinol compounds used yield good dark black image dyes when coupled in a photographic color development process.
本发明涉及一种摄影银卤素材料,其包括至少在支撑体上涂覆的至少一个银卤素乳胶层,所述银卤素乳胶层中或与至少一个银卤素乳胶层有操作接触的层中存在以下式子的化合物:##STR1## 其中W为氢,烷基,--NHCOR.sup.1或--COR.sup.1,R.sup.1为烷基或烯烃基,环烷基,芳基甲氧基氨基或卤素;X是偶联位置上的取代基,是从氢,氯,溴,--SR.sup.11(其中R.sup.11为烷基,芳基或杂环基)中选择的离去基,或者X是连接在环氮原子上的含氮杂环残基;Y是具有以下式子的基团:##STR2## 其中Q从残基(a)--COOR.sup.4或--CONR.sup.4 R.sup.5(其中R.sup.4为氢,烷基,可选地中断1个或多个氧原子,烯烃基,环烷基,芳基甲基或芳基),R.sup.5为氢或烷基,或R.sup.4和R.sup.5连同它们各自连接的氮原子可以形成一个5-或6-元杂环环;(b)--OM(其中M为R.sup.5或--COR.sup.6,其中R.sup.5如上所述,R.sup.6为氢,烷基,烯烃基,环烷基,芳基甲基或芳基);(c)--NR.sup.7 R.sup.8(其中R.sup.7为氢或烷基,R.sup.8为氢,酰基或R.sup.7和R.sup.8连同它们连接的氮原子可以形成一个5-或6-元杂环环);(d)--PO(OR.sup.9)(O).sub.x R.sup.10(其中x为0或1,R.sup.9为氢或烷基,如果x为1,则R.sup.10为氢或烷基,如果x为0,则R.sup.10为烷基,或者R.sup.9和R.sup.10可以链接在一起形成一个烷基链);(e)--SO.sub.2 T(其中T为--OH或--NR.sup.4 R.sup.5,其中R.sup.4和R.sup.5如上所述)或(f)--CN;n为1至20的整数;k为1或2;R.sup.2和R.sup.3独立地为烷基,当Q为--CO.sub.2 R.sup.4时,R.sup.2或R.sup.3中的至少一个可以选择地被1个或2个--CO.sub.2 R.sup.4基取代,或者至少R.sup.2和R.sup.3中的一个与残基--C.sub.n H.sub.2n+1-k相连,形成一个被--(CO.sub.2 R.sup.4)k取代的环烷基残基,其中基团R.sup.4相同或不同,且其中R.sup.4和k如上定义;或其与酸或碱的盐。使用的邻苯二酚化合物在摄影彩色显影过程中偶联时产生良好的深黑色显影染料。