申请人:Eastman Kodak Company
公开号:US04407930A1
公开(公告)日:1983-10-04
Photographic elements, diffusion transfer assemblages and processes are described which employ a nondiffusible, redox, dye-releasing compound comprising a ballasted, sulfonamidophenol or sulfonamidonaphthol compound having a dye moiety attached thereto through the sulfonamido group of the compound, the sulfonamido group being located in a position which is conjugated with respect to the position of the hydroxy group of the compound, and wherein (a) the compound has at least one substituent thereon in a position which is conjugated with respect to the position of the sulfonamido group, the substituent being selected from the group consisting of hydroxy, sulfonamido, phosphonamido and carbonamido, and (b) the compound not having a hydroxy, alkoxy, aryloxy, sulfonamido, phosphonamido or carbonamido group thereon in a position which is conjugated with respect to the position of the hydroxy group of the compound, with the proviso that when the compound is a 2-sulfonamidophenol and has only one substituent thereon in a position which is conjugated with respect to the position of the sulfonamido group, then that one substituent is located in the 5-position. These dye-releasers release the dye moiety at a faster rate than similar dye-releasers of the prior art.
本文描述了一种使用不可扩散的氧化还原染料释放化合物的摄影元素、扩散转移组合物和过程。该化合物包括通过化合物的磺酰胺基团连接到染料基团的带有平衡重的磺酰胺基酚或磺酰胺基萘酚化合物,其中磺酰胺基团位于与化合物的羟基团位置共轭的位置,并且(a)化合物在与磺酰胺基团位置共轭的位置上至少有一个取代基,所述取代基选自羟基、磺酰胺基、膦酰胺基和碳酰胺基的群体;(b)化合物在与羟基团位置共轭的位置上没有羟基、烷氧基、芳基氧基、磺酰胺基、膦酰胺基或碳酰胺基,但是当化合物是2-磺酰胺基酚并且在与磺酰胺基团位置共轭的位置上仅有一个取代基时,则该取代基位于5-位置。这些染料释放剂释放染料基团的速率比先前技术中类似的染料释放剂更快。