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KMID : 0604520210470030227
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Journal of the Society of Cosmetic Scientists of Korea
2021 Volume.47 No. 3 p.227 ~ p.235
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Preparation and Characterization of Planar-type Artificial Calamine Powder with a High Aspect Ratio for the Application to Ultraviolet and Blue Band Protection Cosmetics
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Lee Jung-Hwan
Lee Gun-Sub
Jo Dong-Hyeon
Hong Da-Hee
Yu Jae-Hoon
Gwack Ji-Yoo
Lee Hee-Chul
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Abstract
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In this study, we have prepared pure planar-type ZnO and calamine powder containing both ZnO and Fe2O3 components as a raw material for cosmetics with UV and blue band blocking functions. The planar-type ZnO ceramic powder having a high aspect ratio in the range of 20:1 to 50:1 was synthesized by precipitation method in a zinc acetate and sodium citrate mixed solution with the electrolyte obtained by power generation with a zinc-air battery. The content of Fe2O3 in the artificial calamine ceramic powder could be increased by increasing the amount of iron chloride solution added, and in this case, some of the blue region of visible light and ultraviolet light were remarkably absorbed. When potassium acetate was added, the decomposition of the Zn(OH)4 2- anion in the solution was promoted to facilitate the growth of ZnO crystal in the form of a barrier wall in the vertical direction on the (0001) plane, which could increase UV absorption by providing more opportunities. By controlling the amount of iron chloride solution and potassium acetate solution added, the composition and shape of the thin film plate-shaped artificial calamine ceramic powder can be optimized, and when applied to cosmetic formulations, the light transmittance of the blue region can be greatly reduced.
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KEYWORD
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artificial calamine powder, UV protection, blue band, planar-type ZnO, cosmetic formulation
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