Abstract
In order to achieve the objective of preparing titanium dioxide with a homogeneous dispersibility both in the system when formulating cosmetics and in the cosmetics film when applying cosmetics, we attempted to prepare hollow porous titanium dioxide spheres with controlled collapsibility (HPTC), and examined its properties.
It was found that HPTC was prepared to remove the starch spheres and to sinter the titanium dioxide by heating titanium dioxide coated starch, which is prepared by the attachment and agglomeration of microfine titanium dioxide on the surface of the starch spheres as the core material. In order to keep HPTC shape, the method of preparation of it, was done by heating it at lower temperatures; and the collapsibility of it could be controlled by heating it at certain high temperature.
It was found that HPTC could be well dispersed in the cream by simple mixing, and the cream containing HPTC could opaque ultraviolet light effectively because microfine titanium dioxide was homogeneously dispersed by the collapse of HPTC in the film when it was applied.
