Coating slurry containing talc and calcium carbonate, method of producing it and its use

摘要

A CaCO3-talc coating pigment slurry consists of the following four co-ground components: a. 24 to 64% by weight CaCo3, b. 5 to 48% by weight talc, c. 20 to 40% by weight H2O, and d. an adjuvant combination consisting of 0.05 to 1.4% by weight of at least one commercially available grinding acid and 0.05 to 1.2% by weight of at least one commercially available dispersing agent, wherein the mixed pigments have an average statistical particle diameter of 0.4 mu m to 1.5 mu m. That coating pigment slurry can be used to special advantage to prepare a composition for coating papers for gravure printing.