Aluminum hydroxide in the paper industry is mainly used for surface coatings, fillers and the production of non-combustible paper. In foreign countries, as early as the fifties have begun to develop and use aluminum hydroxide as a coating pigment, and in China is still very little use. Aluminum hydroxide as a coating pigment has many advantages: from the high, fine particle size and uniform particle size distribution, was flaky crystal form, use it as a pigment to improve the degree of self-coated paper. Opacity, smoothness and oil absorption
Ink properties. Use it instead of titanium dioxide. Without reducing the self-degree and opacity of paper under the premise of saving costs, improve the gloss of paper into, to improve the printing performance. As aluminum hydroxide particle size fine and uniform distribution, less wear and tear, can extend the life of the blade, usually papermaking aluminum hydroxide particle size d <1um, whiteness> 99%.