Application of Titanium Dioxide in Paper

Paper industry is the third largest user of titanium dioxide, as paper filler is used primarily in high-grade paper and thin paper, add titanium dioxide in the paper. Can make the paper have a good whiteness, good gloss, high strength, thin and smooth, when printing does not penetrate, lightweight. The use of titanium dioxide paper, good whiteness, high strength, shiny, thin and smooth, printed without penetrating, under the same conditions, opacity than calcium carbonate, talc 10 times higher, the weight can also reduce the 15% ~ 30 %.

Titanium dioxide in papermaking another important application areas that decorative paper, otherwise known as titanium white paper, mainly used for the production of furniture, flooring, wallpaper and other raw materials. In the country, the amount of titanium dioxide used in decorative paper is much higher than other varieties. It is not entirely estimated that the domestic use of decorative paper titanium dioxide more than 30,000 tons per year. Decorative paper titanium content of 20% to 40%, other paper titanium 1% to 5%. Especially in China's consumption level is rising. So the housing decoration, high-end furniture, a large number of demands, the amount of decorative paper gradually increased.

Different varieties of paper corresponding to the choice of titanium dioxide varieties are also different, rutile titanium dioxide excellent oxidation resistance, good weather resistance, mainly for decorative paper and weather, high-ash paper. Although the chlorination process and sulfuric acid process can produce rutile titanium dioxide, but the chlorination process of titanium dioxide production of its whiteness, rutile crystal content, especially the stability of finished products are better than sulfuric acid method, suitable for use in Decorative paper and high ash paper; and coin and low-ash paper must be used sulfuric acid anatase products to better meet the two kinds of paper on the requirements of titanium dioxide opacity.