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The Influence of Grinding Time & Binder on the Particle Size Distribution of the Pearl Pigments  

So Tae-Sup (Hankook Cosmetic Co. Ltd., R&D Center)
Go Du-Jin (Hankook Cosmetic Co. Ltd., R&D Center)
Ro Hee-Su (Hankook Cosmetic Co. Ltd., R&D Center)
Kim Sang-Bum (Hankook Cosmetic Co. Ltd., R&D Center)
Kim Tae-Won (Hankook Cosmetic Co. Ltd., R&D Center)
Kim Joong-Hoi (Hankook Cosmetic Co. Ltd., R&D Center)
Publication Information
Journal of the Society of Cosmetic Scientists of Korea / v.30, no.4, 2004 , pp. 543-548 More about this Journal
Abstract
For pearl pigments used for splendor or gloss effect of make-up products, especiallv point make-up products like eye-shadow and blusher, we studied the variation of particle size distribution by the grinding time and by the binder used as a binding agent. In this study. high speed mixer was used and the particle sire distribution was measured by using the light scattering method. In case of pearl pigments, its median diameter of $5{\;}{\mu}m$, the particle size was reduced to 4.6 um when it was ground for 120 s. When it was applied for the pearl pigment of $45{\;}{\mu}m$, the particle size was reduced to $27{\;}{\mu}m$. We confirmed that the latter was reduced more largely and the original gloss was reduced too. For the binder, we studied the correlation between particle size of raw material and grinding time. We also investigated the effects of the binder contents on the variation of particle size distribution of products by aggregation of particles.
Keywords
particle size distribution; pearl pigments; binder; grinding time; size reduction;
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