申请人:Fuji Photo Film Co., Ltd.
公开号:US04840887A1
公开(公告)日:1989-06-20
A silver halide photographic material is disclosed, which comprises a support having formed thereon at least one silver halide emulsion layer, wherein the silver halide photographic material contains, in the silver halide emulsion layer, other hydrophilic colloid layer(s), or both, a compound represented by formula (I) ##STR1## wherein EAG represents an electron accepting group, --SO.sub.2 -- represents a sulfonylene group; X represents an oxygen atom (--O--), a sulfur atom (--S--) or an atomic group (--N(R.sub.2)--) containing a nitrogen atom; the single bond between --SO.sub.2 and X being cleaved after EAG receives an electron, wherein R.sub.1 and R.sub.2 each represents a simple bond or a group other than a hydrogen atom; said R.sub.1, R.sub.2, EAG may be combined with each other to form a ring; (Time) represents a group capable of releasing a photographically useful group (PUG) upon the cleavage of the SO.sub.2 --X bond; t represents 0 or 1; when said t is 0, (Time) represents a simple bond and X may be a part of PUG; the solid line represents a bond; the dotted lines show that at least one of them is bonded.
公开了一种银卤片材料,包括具有至少一层银卤乳剂的支撑体,其中银卤片材料在银卤乳剂层中含有其他亲水胶体层,或者两者都含有,所述化合物由式(I)表示:
其中,EAG代表电子受体基团,--SO.sub.2--代表磺酰亚乙基基团;X代表氧原子(--O--),硫原子(--S--)或含有氮原子的原子基团(--N(R.sub.2)--);--SO.sub.2和X之间的单键在EAG接受电子后被断裂,其中R.sub.1和R.sub.2各自代表简单键或不是氢原子的基团;所述的R.sub.1、R.sub.2、EAG可以结合形成环;(Time)代表能够在SO.sub.2--X键断裂时释放出照相有用基团(PUG)的基团;t代表0或1;当t为0时,(Time)代表简单键,X可以是PUG的一部分;实线表示键;虚线表示至少有一条键相连。