Features: 1) High whiteness, fine grain, reasonable distribution of grain and good mobility 2) Increases firm content of coating 3) Reduces dry energy consumption 4) Elevates speed of paper machines 5) Good opacifier 6) Enhances coating and whiteness, smoothness and glossiness of paper 7) Raises ink absorption value (up to the requirement of fast colored printing) 8) Can replace expensive titanium 9) Usage: coating and pigmentation for processing paper such as copperplate paper, white paper boards