Process for providing a matt surface on a photographic material and photographic material provided with such matt surface

摘要

A matt surface can be provided on a photographic material comprising a support base, one or more light-sensitive gelatin silver halide emulsion layers and an outer non-light-sensitive gelatin layer coated on said layers if discrete particles, insoluble in water and substantially soluble in aqueous alkaline medium, of a carboxyl group containing copolymer are introduced into said outer layer. The particles, of a diameter between 0.5 and 4 micron, are introduced into the coating composition of the outer layer as a dispersion of a methacrylic acid and ethylmethacrylate copolymer containing 20 to 50 percent by weight of methacrylic acid, which dispersion is obtained by dispersing in an aqueous solution of a hydrophilic colloid a solution of said copolymer in ethylacetate or water-including ethylacetate.