申请人:Ciba-Geigy AG
公开号:US04430425A1
公开(公告)日:1984-02-07
Color photographic silver halide material which contains in at least one coupler containing silver halide emulsion layer or in a layer adjacent thereto (a) a hydroquinone of the formula ##STR1## wherein p is 1 or 2 and q is 0 or 1, provided that p+q is 1 or 2, R is a radical of the formula ##STR2## wherein Q is selected from the residues (1) --COZR.sub.4, wherein Z is O or NR.sub.5, and R.sub.4 is hydrogen, alkyl optionally interrupted by oxygen, cycloalkyl, alkenyl, aryl, aralkyl or a heterocyclic ring, and R.sub.5 is hydrogen or alkyl or together with R.sub.4 and the nitrogen atom to which they are bonded form a heterocyclic ring, (2) --OX, wherein X is R.sub.5 or --COR.sub.7, wherein R.sub.7 is hydrogen, alkyl cycloalkyl, alkenyl, aryl or aralkyl, (3) --NR.sub.8 R.sub.9, wherein R.sub.8 is hydrogen or alkyl, and R.sub.9 is hydrogen, alkyl or --COR.sub.7, or R.sub.8 and R.sub.9 together with the nitrogen atom to which they are bonded form a ring, (4) --P(O)(OR.sub.10 ')([O].sub.x R.sub.11 '), wherein x is 0 or 1, and if x is 1, R.sub.10 ' and R.sub.11 ' are hydrogen or alkyl or form together an alkylene chain, and if x is 0 R.sub.10 ' is alkyl, (5) --SO.sub.2 NR.sub.5 R.sub.6, wherein R.sub.5 and R.sub.6 are hydrogen or alkyl, or (6) cyano, n is 1 to 20, k is 1 or 2, R.sub.2 and R.sub.3 are alkyl and if Q is CO.sub.2 R.sub.4, either R.sub.2 or R.sub.3 is optionally substituted by --CO.sub.2 R.sub.4, or R.sub.2 and R.sub.3 form together an alkylene chain, and R.sub.1 is alkyl or a group of the formula ##STR3## or (b) a salt thereof, has an improved stability to light.
含有至少一个含有
银卤化物乳剂层或相邻层中的
偶联剂的彩色
银卤化物材料,其中
偶联剂包含以下
化学式的
邻苯二酚: ##STR1## 其中p为1或2,q为0或1,但p+q为1或2,R为以下
化学式的基团: ##STR2## 其中Q从残基(1) --COZR.sub.4,其中Z为O或NR.sub.5,R.sub.4为氢,被氧间断的烷基,环烷基,烯基,芳基,芳基烷基或杂环环,R.sub.5为氢或烷基或与R.sub.4和它们所连接的氮原子形成杂环环;(2) --OX,其中X为R.sub.5或--COR.sub.7,其中R.sub.7为氢,烷基环烷基,烯基,芳基或芳基烷基;(3) --NR.sub.8 R.sub.9,其中R.sub.8为氢或烷基,R.sub.9为氢,烷基或--COR.sub.7,或R.sub.8和R.sub.9与它们所连接的氮原子一起形成环;(4) --P(O)(OR.sub.10 ')([O].sub.x R.sub.11 '),其中x为0或1,如果x为1,则R.sub.10 '和R.sub.11 '为氢或烷基或一起形成烷基链,如果x为0,则R.sub.10 '为烷基;(5) --SO.sub.2 NR.sub.5 R.sub.6,其中R.sub.5和R.sub.6为氢或烷基;(6)
氰基,n为1到20,k为1或2,R.sub.2和R.sub.3为烷基,如果Q为CO.sub.2 R.sub.4,则R.sub.2或R.sub.3可选择被--CO.sub.2 R.sub.4取代,或者R.sub.2和R.sub.3一起形成烷基链,R.sub.1为烷基或以下
化学式的基团: ##STR3## 或其盐,具有较好的光稳定性。