OBJECT: | Disperse titanium dioxide (TiO2) and zinc oxide (ZnO) down below 1 micron into a sunscreen base. |
PROBLEM: | Fine dispersion below 1 micron requires special grade of zinc oxide and titanium dioxide and high shear. |
RESULTS: | By recirculating mixture through in-line rotor stator all solid particles are shear to a sub-micron level. |
AB MIXER: | Model 6 x 3 Dicon, 30 HP, 1/8” discharge grid. |
BENEFIT: EQUIPMENT REPLACED | The particles are able to block harmful ultraviolet solar rays, but do not reflect visible light so product is invisible on skin. Expensive Euro rotor stator. |