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Tactile Texture of Cosmetic Sponges and Their Friction Behavior under Accelerated Movement
Natsumi Asanuma1, Yuuki Aita1, Yoshimune Nonomura1
1Department of Biochemical Engineering, Graduate School of Science and Engineering, Yamagata University.
Abstract:
We evaluated the friction properties of five cosmetic sponges on artificial skin using sinusoidal motion-friction evaluation system. No significant difference was observed in the pleasant score of the five sponges when these sponges were rubbed on the skin surface. The sponges were classified into three groups based on their tactile feel. Their characteristic tactile textures were moist-soft-slippery, moist-dry-rough, and moist feels. The slippery feel was found to depend on the thickness of the sponge's cell wall, its surface tension, and the change in friction coefficient in the dynamic friction process. These findings are useful in the design of cosmetic sponges.
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