申请人:Fuji Photo Film Co., Ltd.
公开号:US04294919A1
公开(公告)日:1981-10-13
A direct positive silver halide photographic light-sensitive material is described, comprising a support having coated thereon a light-sensitive silver halide photographic emulsion layer and a hydrophilic colloid layer, at least one of said layers containing a compound represented by the formula (I): ##STR1## wherein R.sup.1 represents R.sup.6 or R.sup.6 CO--; and R.sup.6 represents an aliphatic group, an aromatic group, a heterocyclic aromatic group or hydrogen; R.sup.2 and R.sup.4, which may be the same or different, each represents an aliphatic group, an aromatic group, a heterocyclic aromatic group or a hydrogen atom; or R.sup.1 and R.sup.2 together can form a ring; R.sup.3 represents hydrogen or an aliphatic group; R.sup.5 represents Y or X--A--Y wherein X and Y, which may be the same or different, each represents a divalent aromatic group; and A represents a divalent group selected from --CONH--, --NHCONH--, --SO.sub.2 NH--, --B--CONH-- and --B--SO.sub.2 NH-- wherein B represents --E--, --O--E-- or --S--E-- wherein O and S is bonded to X; and E represents a divalent aliphatic group; the compound represented by formula (I) is a fogging agent which imparts a desired fogging activity without detracting from spectral sensitization.
本文描述了一种直接阳性银卤片光敏材料,其包括一个支撑体,上面涂有一层光敏银卤乳胶层和一层亲水性胶体层,其中至少一层包含以下式子所表示的化合物(I): ##STR1## 其中R.sup.1代表R.sup.6或R.sup.6 CO-;R.sup.6代表脂肪族基,芳香族基,杂环芳香族基或氢;R.sup.2和R.sup.4,它们可以相同也可以不同,分别代表脂肪族基,芳香族基,杂环芳香族基或氢原子;或者R.sup.1和R.sup.2可以形成一个环;R.sup.3代表氢或脂肪族基;R.sup.5代表Y或X--A--Y,其中X和Y,可以相同也可以不同,每个都代表二价芳香族基;A代表从--CONH--,--NHCONH--,--SO.sub.2 NH--,--B--CONH--和--B--SO.sub.2 NH--中选择的二价基团,其中B代表--E--,--O--E--或--S--E--,其中O和S与X相连;E代表二价脂肪族基;式(I)所表示的化合物是一种起雾剂,它赋予所需的起雾活性而不影响光谱敏化。