Fluorinated surfactants in overcoat compositions and elements containing same

摘要

A coating composition for use in forming an overcoat layer in a photographic element, said composition comprising an aqueous solution of: a mixture of two or more surfactants; a hydrophilic binder; matte beads; and a lubricating agent; wherein one of the surfactants is represented by the following Formula (I):Rf-CH2CH2-S-(A)-D (I)where Rf is -(CF2)nCF3, where n is 3 or 5 in at least 90% of the Rf groups present; A is a divalent linking group that includes substituted alkylene or alkylene (N-alkylene)amide; and D is an anionic group or a cationic group. A photographic element with an outermost layer containing the coating composition is also disclosed.