Light-sensitive silver halide materials comprising fluorine-containing surfactants.

摘要

Fluorine-containing surfactants according to formula (Rf-X)n-A-L-Z wherein Rf is a short-chain fluorine-containing group derived from hexafluoropropylene ortrifluoro- chloroethylene, X is -0-, -S-, or -SO₂-, n is at least 2, the Rf groups being same or different, L is a monovalent bond or a bivalent bridging group such as -COO-alkylene, -CONR¹-alkylenesor -SO₂NR¹-alkylene, wherein R¹ is hydrogen or C₁-C₅ alkyl, and Z represents a hydrophilic polyoxyethylene group or a hydrophilic group such as
wherein M is hydrogen, an alkali metal, amonium, or organic ammonium, and R is alkyl;

A is an aliphatic, aromatic, or aliphatic-aromatic group. These surfactants can be used in hydrophilic colloid layers, which may form part of light-sensitive silver halide materials.