. Kaolin is featured with high whiteness, soft, disperse suspended in the water, big changes shape, good bonding ability and great electrical insulating property. And so Kaolin becomes the essential ore materials of tens of industries such as papermaking, ceramics, rubber, chemical, painting, medicine and national defense. Kaolin is most widely used in Papermaking industry. The two main industries kaolin is widely used in are Paper making and surface coating. Kaolin is the filler in paper making process and is the excellent pigment in surface coating.