Preparation method of weather-resistance environmental-friendly synthetic mica pearlescent pigment

The invention discloses a preparation method of a weather-resistance environmental-friendly synthetic mica pearlescent pigment. The preparation method is as follows: a synthesizing treatment process of a new pearlescent pigment surface material is adopted in the grinding stage of the production process of the weather resistance grade environmentally friendly pearlescent pigment, thus the surface of mica is covered with earth metal oxide and the weather resistance of the weather resistant product can be greatly improved. The preparation method does not relate to poisonous and harmful heavy metal elements and generate organic matter polluting the environment, is good for environmental protection and can completely replace imported products, thus reducing the dependence on the imported products and increasing the competitiveness of the industry. In addition, the scientific and technological progress of the industry can be promoted, the preparation method of the invention has positive influence on the technologic