Photographic element having improved surface protective layer containing composite wax particles
AssigneeEastman Kodak Company
InventorsYongcai Wang, Charles C. Anderson
Life of this patent
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Abstract
Photographic elements are described which comprise a support, at least one image-forming layer, and at least one surface protective layer that contains a polymeric binder and composite wax particles having a wax phase and a polymer phase, wherein the polymer phase is soluble in alkaline photographic processing solutions. The surface protective layer advantageously enables a change in frictional characteristics after film processing in alkaline solutions which enables the photographic element to have both pre-processed wound roll stability and high post-processed lubricity.
Claims25
An unprocessed photographic element comprising a support, at least one image-forming layer, and at least one surface protective layer that contains a polymeric binder and composite wax particles having a wax phase and a polymer phase, wherein the polymer phase is soluble in alkaline photographic processing solutions, the composite wax particles comprise from 20 to 80 weight % wax phase based on the total weight of the composite wax particle, and the polymeric binder comprises an alkaline swellable polymer.
A color motion picture photographic print element comprising a support bearing on one side thereof, in order, a yellow dye image-forming unit comprising at least one blue-sensitive silver halide emulsion layer having associated therewith at least one yellow dye-forming coupler, a cyan dye image-forming unit comprised of at least one red-sensitive silver halide emulsion layer having associated therewith at least one cyan dye-forming coupler, and a magenta dye image-forming unit comprising at least one green-sensitive silver halide emulsion layer having associated therewith at least one magenta dye-forming coupler, and on either side thereof a surface protective layer that contains a polymeric binder and composite wax particles having a wax phase and a polymer phase, wherein the polymer phase is soluble in alkaline photographic processing solutions, the composite wax particles comprise from 20 to 80 weight % wax phase based on the total weight of the composite wax particle, and the polymeric binder comprises an alkaline swellable polymer.
Dependencies are inferred from the claim text.