Laboratoire de Physique et Mécanique des Milieux Hétérogènes (UMR CNRS 7636), Ecole Supérieure de Physique et de Chimie Industrielles de la Ville de Paris, 10 rue Vauquelin, 75231 Paris cedex 05, France.
Int J Cosmet Sci. 2000 Feb;22(1):11-20. doi: 10.1046/j.1467-2494.2000.00006.x.
Phenomena occurring at the interface between skin and a glass pad, alternatively moved at its surface, are described by direct observation and measured by recording the force on the pad induced by the skin displacement. Static and dynamic friction coefficients are determined as a function of the load applied on the pad. Influence on the recordings of the friction coefficient of some cosmetic treatments applied on the skin are described. Results show that discontinuous phenomena, due to compression and distortion of the skin microrelief, occur during the beginning of the sliding process. Friction coefficients are depending on the load applied on the pad. Our studies confirm the increase of friction coefficient after hydration of the skin surface and suggest that the fluctuations in the frictional force amplitude could supply an objective, although indirect, measurement of skin smoothness.
通过直接观察和记录皮肤位移引起的垫子上的力，描述了在皮肤和玻璃垫之间的界面上发生的现象，该玻璃垫可在其表面上移动。确定了作为垫子上施加的负载的函数的静态和动态摩擦系数。描述了施加在皮肤上的一些化妆品处理对记录摩擦系数的影响。结果表明，在滑动过程开始时，由于皮肤微地形的压缩和变形，会出现不连续现象。摩擦系数取决于垫子上施加的负载。我们的研究证实了皮肤表面水合作用后摩擦系数的增加，并表明摩擦力振幅的波动可以提供皮肤光滑度的客观（尽管是间接的）测量。
