去角质化妆品对皮肤摩擦性能的影响研究

采用UMT-Ⅱ多功能摩擦磨损试验机,模拟洗脸的摩擦条件,考察了微粒大小、数量和硬度不同的3种磨砂洗面奶介质对不同性别人体皮肤摩擦特性的影响.结果表明：由于在往复摩擦条件下磨砂洗面奶去除了皮肤表面老化角质层,皮肤的表面粗糙度下降,皮肤的电导、水合作用、黏着力及摩擦系数增加;含有2种微粒大小、数量和硬度适中的B组洗面奶介质摩擦去除老化角质较多,皮肤后续对保湿化妆品的渗透效果较好;由于不同性别皮肤表面结构的差异,磨砂洗面奶对男性皮肤表面结构的影响较女性大.

Effects of Scrub Facial Cleanser on the Friction Properties of Human Skin

By using a UMT-II tribometer, the effects of scrub facial cleanser with different size, amount and hardness scrub particles on the tribological properties of human skin have been investigated under the simulated face washing conditions. The results show that the aged corneous layers on the skin surface have been removed by the scrub facial cleanser under reciprocating sliding wear mode, which result in decrease in the skin surface roughness and increase in skin conductance, skin hydration, adhesion and friction coefficient. Seeing that the scrub facial cleanser B with two kinds of size and moderate volume and hardness scrub particles remove more aged corneous layer, the skin permeation to the moisturizing cosmetic is better than those removed by the other two scrub facial cleansers. Due to gender differences in skin surface structure, the effect of scrub facial cleanser on the skin surface of males is more significant than that of females.