Relationship between tribological characteristics and perceived texture when humans touch artificial skin with/without lubricants

There has been a remarkable increase in demand to quantitatively measure and evaluate texture especially in the process of product design for cosmetics, apparel, and household products. The purpose of this study is to analyze the relationship between texture perception of geometry and pseudo skin and effect of lubricants. Solid lubricant and fluid lubricant on pseudo skin are selected as samples. Next texture of samples is evaluated by semantic differential method and texture scores is calculated. Then, suppress strength, dynamic friction, and tracing speed of a finger are measured while an examinee evaluated the texture of samples. From these results tribological characteristic of samples are calculated. Finally the relationship between tribological characteristics and texture score are analyzed using the multiple regression analysis method. In conclusion relationship between texture and tribological characteristics are clarified. Now it is able to evaluate the difference in textures which were considered difficult to distinguish.