204 JOURNAL OF COSMETIC SCIENCE tracks the trajectories of photons as they undergo multiple scattering events through the film. The effects of manipulating mixtures of particles with different complex Ris and sizes, as well as the effects of increasing the thickness of the film and changing the surface roughness, are predicted by this program. Optical models such as the one described can not only aid in the formulation of existing materials, but can also be used to probe potential new materials that are suitable for use in coating applications. In summary, we have demonstrated the capability of this tool in rigorously modeling, i.e., quantifying under certain constraints, the optical properties of formulations using input parameters that are relevant to the chemist. ACKNOWLEDGMENTS The authors wish to thank Dr. John Graf of GE Global Research for very helpful discussions on key aspects of the described simulation program. REFERENCES (1) P. Kubeika and F. Munk, Ein Beitrag zur Optik der Farbanstriche, Zeits. F. techn. Physik, 12, 593-601 (1931). (2) S. Chandrasekhar, Radiative Transfer (Dover, New York, 1960), p. 196. (3) S. E. Orchard, Reflection and transmission of light by diffusion suspensions,]. Opt. Soc. Amer., 59, 1584-1597 (1969). (4) H. W. Jensen, S. R. Marschner, M. Levoy, and P. Hanrahan, "A Practical Model for Subsurface Light Transport," in Proceedings of the 28th Annual Conference on Computer Graphics and Interactive Techniques (2001), pp. 511-518. (5) L. Henyey and J. Greenstein, Diffuse radiation in the galaxy, Astrophys. ]., 93, 70-83 (1941). (6) G. Mie, Ann. Physik, 25, 377 (1908). (7) H. C. van de Hulst, Light Scattering by Small Particles (Wiley, New York, 1957), Chapters 9 and 10. (8) C. F. Bohren and D.R.Huffman, Absorption and Scattering of Light by Small Particles (Wiley, New York, 1983), as modified by B. T. Drane. (9) S. A. Prahl, M. Keijzer, S. L. Jacques, and A. J. Welch, A Monte Carlo model of light propagation in tissue, in SPIE Proceedings of Dosimetry of Laser Radiation in Medicine and Biology, G. J. Muller and D. H. Sliney, Eds., Volume IS 5, pp. 102-111 (1989). (10) S. A. Prahl, Light Transport in Tissue, PhD thesis, University of Texas at Austin, 1988. (11) J. A. Ogilvy, Theory of Wave Scattering from Random Rough Surfaces (Adam Hilger, Bristol, UK, 1991). (12) Almaz Optics (www.almazoptics.com). (13) J. J. Joshi, D. B. Vaidya, and H. S. Shah, Color Res. Appl., 26, 3 (2001). (14) H. Chang and T. T. Charalampopoulos, Determination of the wavelength dependence of refractive indices of flame soot, Proceedings of the Royal Society of London, Series A - Mathematical and Physical Sciences, 430, 577-591 (1880).

]. Cosmet. Sci.) 56, 205-206 (May/June 2005) Abstracts Journal of the Society of Cosmetic Chemists Japan Vol. 39, No. 1, 2005* Technology in Emulsified Particle Size Control by New Mixing Method Yasuko Nagai, Takeshi Asa, Keishiro Ishizu Emulsification and Dispersion Technology Laboratory, Tokushu Kika Kogyo Co., Ltd. The best pulverization of emulsions that can be achieved using conventional mixing blades is in the micrometer realm. Now, with our new "thin-film spin system" high-speed mixer, it is possible to attain pulverization in the nanometer realm. The particle size distribution can now be controlled to achieve an almost single distribution state. Particles can be pulverized without being severed, preventing secondary agglomeration after processing. This new mixing system also solves many of the problems common to conventional pulverization processes. Market and Technical Trend of Cleansing Oils Hiroko Tsuda Skin Care Products Research Laboratories, Kao Corporation Consumers' makeup behavior has changed greatly in past several years. Lipsticks and foundation were mainly used before, but recently mascara is becoming widely used to emphasize their eyes. Following this change, the market for makeup remover also changed. That is, the market for cleansing oil, which has superior eye makeup removing ability, expanded quickly. The cleansing oils contain oils and surfactants. The latter emulsify the oils and help them to be washed away. Multi-chain nonionic surfactants are usually used for their high emulsifying ability and for their low safety risk. However, conventional cleansing oils cannot be used with wet hands, because oils are emulsified and makeup removing ability obviously declines. Recently, a new cleansing oil that can be used with wet hands was developed. As it can solubilize a lot of water in itself, it retains its makeup removing ability in spite of the water contamination. To realize the high water solubilizing ability, it is important to use a surfactant that has a lipophobic group like the hydroxyl group as well as to control the HLB of the entire system. Evaluation of Glossy Appearance of Facial Make-up Using CG Images Koji Minami*, Tomomichi Kaneko*, Hirohide Nabeshima**, Hiroshi Iwamoto*, Nobutoshi Ojima*, Noboru Nagatani*, Kimihiko Hori* Skin Care Products Research Laboratories*, Processing Development Research Laboratories**, Kao Corporation A new method for optimizing the glossy appearance of facial make-up is proposed. Reflections from skin make-up comprise 2 components, specular and diffuse. Glossiness of the skin can be optimized by controlling the magnitude of the specular component in applied cosmetic foundation. To determine optimal appearance of glossiness, a series of images of a woman's face with make-up varying in the magnitude of specular reflection * These abstracts appear as they were originally published. They have not been edited by the Journal of Cosmetic Science. 205