From the middle nineties of last century, some of the domestic factory apply the high-shear emulsification equipment in coatings production which apply mainly in liquid mix field in overseas to replace those national dispersing machine, sand mill machine and 3-roller machine. Those factories profess that it is the once and for ever solution for coatings productions. However, the following one by one bad market news relapse those factories into trouble. The main defect of this new machine is : as to high and middle grade coatings, this high-shear emulsifier could not reach the fine degree those factory request at all. As a company who process of 7 items of national high-shear technology, our company had also been disturb by this trouble. The fine degree defect is the reason why high-shear emulsifier could not dominate in the world coatings equipments market and could not been recognize by the international academe field. Therefore, almost all the high-shear manufacturer to mill it more by horizontal sand mill machine besides the high-shear emulsifier. This coatings making method puzzled those factories: the fine grade is settle still by those traditional sand mill machine, the hard clean, hard color-change and high remains problems are still on, the emulsifier’s price is many times than the traditional disperse machine, how can we call this “high-shear coatings making method” as the advanced one?

Above all, though the traditional coatings equipment have apply for years, it is limitation still obviously. The “high-shear coatings making method” is follow the “high-shear emulsifier plus sand mill machine method” in essential, it also could not solute the traditional equipment’s limitation.