Department of Applied Chemistry, Chemical Engineering, and Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University.
Daito Kasei Kogyo Co., Ltd.
J Oleo Sci. 2022 Sep 30;71(10):1459-1467. doi: 10.5650/jos.ess22173. Epub 2022 Sep 9.
Frictional properties are one of the most important physical factors in the design of powder cosmetics. In this study, 21 powder cosmetics were applied to artificial skin, and their friction characteristics were evaluated using a sinusoidal motion friction evaluation system. Three friction profiles were observed that depended on the sliding velocity. Principal component analysis showed that the principal component (Z), which characterized the friction dynamics of powder cosmetics, included the static friction coefficient (μ ), the kinetic friction coefficient (μ ), the delay time (δ), and the viscosity coefficient (C). Furthermore, a cluster analysis on Z suggested that powder cosmetics can be classified into three groups according to their friction dynamics. These results may be helpful to understand the phenomena that occur during the application of powder cosmetics.
摩擦特性是粉末化妆品设计中最重要的物理因素之一。本研究将 21 种粉末化妆品应用于人工皮肤，并使用正弦运动摩擦评估系统评估其摩擦特性。观察到三种取决于滑动速度的摩擦曲线。主成分分析表明，表征粉末化妆品摩擦动态的主成分（Z）包括静摩擦系数（μ）、动摩擦系数（μ）、滞后时间（δ）和粘性系数（C）。此外，Z 的聚类分析表明，根据其摩擦动态，粉末化妆品可以分为三组。这些结果可能有助于理解粉末化妆品应用过程中出现的现象。
