Wax micro-capsules prepared through emulsion aggregation and coalescence

POLY 510

Yuhua Tong, yuhua.tong2@xerox.com, Xerox Corporation, MS: 0143-02S, 800 phillips rd, webster, NY 14580 and Chieh-Min Cheng, chieh-min.cheng@xerox.com, Xerox Corporation, 0143-02S, 800 phillips rd, webster, NY 14580.
Wax is one of the important components in digital imaging materials such as ink, toner and paper. To achieve better image quality, the function of wax must be controllable in image process, because most waxes have poor compatibility with other organic / inorganic materials. In this paper, we discuss the preparation of wax micro-capsules through emulsion aggregation and coalescence. The core / shell wax capsules about 4.2 microns, with narrow size distribution, were obtained by this simple process. A surface analysis technique X-ray photoelectron spectroscopy (XPS) was employed to charcterize the surafce of capsules. No wax could be detected on the partcile surface.