Improvement method for performance of surface of silver-halide light-sensitive material

Abstract

The invention discloses an improvement method for the performance of the surface of a silver-halide light-sensitive material. The silver-halide light-sensitive material consists of a film base, at least one light-sensitive emulsion layer and at least one hydrophilic-gel protective layer, wherein the used amount of perfluoro ammonium caprylate in the hydrophilic-gel protective layer is 6-20mg / m<2>; the used amount of oleamide polyoxyethylene ether is 15-30mg / m<2>; the used amount of perfluoroalkyl polyoxyethylene ether is 10-50mg / m<2>; the used amount of water-soluble polyurethane is 0.4-0.9g / m<2>; the used amount of polyoxyethylene wax is 80-200mg / m<2>; the particle diameter of silica sol is 7nm, and the used amount of the silica sol is 10-20mg / m<2>; and the particle diameter of the silica sol is 7nm, and the used amount of the silica sol is 10-20mg / m<2>. The improvement method disclosed by the invention has the advantages that water-soluble polymer is used for replacing partial gelatin, so that the silver-halide light-sensitive material has good anti-static performance and excellent scratch resistance, and after washing and processing, no residual water stains and highly-bright surfaces are caused.

Description

technical field [0001] The invention relates to the field of silver halide photosensitive materials, and more specifically relates to a method for improving the surface properties of silver halide photosensitive materials suitable for X-ray industrial films, laser phototypesetting films, medical X-ray films and the like. Background technique [0002] The silver halide photosensitive material is composed of a film base, at least one layer of silver halide photosensitive emulsion coated on one or both sides of the film base, and at least one layer of hydrophilic adhesive protective layer coated on the photosensitive emulsion. The hydrophilic adhesive layer is usually a hydrophilic colloid, and friction with insulating substances with low conductivity will generate static electricity, such as polyester fibers, plastic rollers, rubber rollers, etc. In a dry environment, especially a fast-moving mechanical system, static electricity is prone to build up. In severe cases, the sil...

AI Technical Summary

Problems solved by technology

Although increasing the thickness of the film can improve the surface glare effect of the negative film, the surface of the negative film is easy to adhere to dirt

And thicker coat layers can hinder handling, slowing spreadability and drying speed

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