Abstract

A novel powder particle, nominated as powder-coated microsponge (PMS) containing sunset yellow (SY), was prepared by dry impact blending, and the subsequent dissolution behavior of SY from PMS was studied. Two kinds of spherical and porous cellulose particles known as microsponge (10.3 or 53.9 μm in volume-surface mean diameter) containing SY were coated with spherical polymethylmethacrylate particles (PMMA, 0.15 or 0.40 μm in diameter) and titanium dioxide particles (anatase-type, 0.25 μm in diameter). This coating was carried out without solvents

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