| 摘要 |
PURPOSE: A method for preparing a red pigment is provided, which does not contain lead and chromium which is toxic to the human body and pollutant, and is used as a pigment for a paint or plastic. CONSTITUTION: The method comprises the steps of injecting the composition comprising 30 wt% of yellow iron oxide, 30 wt% of red iron oxide, 20 wt% of titanium dioxide and permanent red into a machine; pulverizing the composition; and mixing, examining and packing it. |
