Silver halide photographic material - with antistatic coating contg. unsaturated carboxylic acid fluorinated alkyl ester polymer

摘要

A photosensitive material comprises a support coated on =1 surface with =1 Ag halide photographic emulsion layer coated in turn with a top layer comprising an F-contg. (co)polymer. The latter is derived from a fluorinated alkyl (opt. branched) ester of an ethylenically unsatd. carboxylic acid. The fluorinated alkyl group contains no more than one H or Cl for 2C atoms and one O or N for 2C atoms. The polymer may be present on its own or, besides the top layer, it may be incorporated in one or all emulsion layers or in an intermediate layer between the support and the emulsion layer. The polymer prevents the accumulation of static charges when the material is processed, partic. in high speed radiographic appts. Formation of static streaks on films is thus avoided.