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Abstract

The invention is a composition for forming a surface on a suitable substrate comprising (a) a water soluble polymer crosslinkable into a water-insoluble form; (b) a pigment component; (c) silica; and (d) a crosslinking agent. In a preferred embodiment, the polymer is an organic colloid such as polyvinyl alcohol, the pigment component comprises a water dispersible pigment such as titanium dioxide and clay, silica particles have diameters smaller than that of the pigment, and the crosslinking agent comprises a water soluble organic compound containing both an acid and carbonyl group, a water soluble dicarbonyl compound, and a suitable polymerizable resin. The invention is also a method for generating a surface composition for suitable substrate comprising: (a) forming a dispersion comprising (i) a water soluble polymer crosslinkable into a water-insoluble form; and (ii) a pigment component; (b) adding silica to the dispersion to form a dispersion-silica mixture; (c) applying the mixture of (b) to a suitable substrate to form a layer; (d) drying the layer; (e) contacting the dried layer with a crosslinking agent comprising: (i) a water soluble organic compound containing both an acid and carbonyl group; (ii) a water soluble dicarbonyl compound; and (iii) a suitable polymerizable resin, (f) drying the product of (e).

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First Claim