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No. 5
Vol. 42 , No. 2, pp. 110–120, 2008
Design and development of an innovative hybrid powder based on a computer simulation and its application to base make up products
Author(s) -
Ogawa Katsuki,
Yagi Katsuhiko,
Hata Hideo,
Miura Yoshimasa,
Nakamura Koichi,
Takata Sadaki,
Fujima Kazumi
Publication year - 2009
Publication title -
international journal of cosmetic science
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.532
H-Index - 62
eISSN - 1468-2494
pISSN - 0142-5463
DOI - 10.1111/j.1468-2494.2008.00466_5.x
Subject(s) - finite difference time domain method , reflection (computer programming) , foundation (evidence) , domain (mathematical analysis) , texture (cosmology) , materials science , optics , computer science , physics , mathematics , mathematical analysis , image (mathematics) , artificial intelligence , law , programming language , political science
An innovative hybrid powder prepared through computer simulation allowed a new foundation to be developed having a fine, smooth texture that has never been achieved before. The optical structure/design of the powder was based on the results of measurements and analyses conductedon the optical characteristics of a baby's fine skin that is the envy of many women. In order to achieve the optimal optical characteristics, the Finite Differential Time Domain (FDTD) method to solve Maxwell's differential equation by difference and time domain was applied to the computer simulation method. For the synthesis of the hybrid powder based on the optical model, a proprietary shape regulation coating technology was used, in which flaky substrates were coated with micro‐spherical forms of barium sulfate crystals. The developed hybrid powder exhibited optical characteristics that showed a significant diffusion characteristic in the visible light region. The foundation containing this powder could conceal pores, fine wrinkles, freckles, and spots, and provided a fine, smooth texture owing to its microscopic reflection characteristics that has never been available from a conventional foundation.