大口径SiO2粉末の製造方法及びそれを含む化粧料組成物
JP7891756B2Active Publication Date: 2026-07-17SUKKYUNG A T C O L D
Patent Information
- Authority / Receiving Office
- JP · JP
- Patent Type
- Patents
- Current Assignee / Owner
- SUKKYUNG A T C O L D
- Filing Date
- 2024-10-24
- Publication Date
- 2026-07-17
AI Technical Summary
Benefits of technology
【0012】 本発明の粒子は、本発明によるシリカ粒子は、白色の粉末であり、粒径が1.0~20.0μmであり、白色度が>90、純度(%)>99.9の特徴を有する。
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Abstract
SOLUTION: To provide a method for producing SiO2 powder having a particle size of 1.0 to 20.0 μm, comprising the steps of: adding CH3COOH to H2O and stirring the mixture; adding TEOS after the stirring and stirring the mixture; removing a synthetic mother liquor with a filter press and washing the mixture with H2O; and drying the mixture after the washing to obtain dry silica particle powder having a water content of 0.5% or less, and provide monodisperse, non-crystalline, spherical silica particle powder having a particle size of 1.0 to 20.0 μm and having a whiteness of 90 or more and a purity (%) of 99.9 or more.EFFECT: The large-diameter silica particles of the present invention are monodisperse particles with a similar particle size, having a smooth, spherical surface, cause no skin irritation, provide a soft feel, and are suitable for use as cosmetic scrub agents while also offering environmental benefits.SELECTED DRAWING: Figure 1
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