Abstract
The purpose of this study is to develop plastic moldings with distinguishing tactile characters for various industrial applications. Pillar textures with the size of several hundreds of micrometers were fabricated on plastic molding surfaces, and the effect of texture shape on the human tactile sense was investigated by self-reported data collection and multivariate statistical analysis. The sensory evaluation revealed that the recognition of tactile senses depends on the physical properties of the texture. This tendency was different from that of the grooved texture with the size of several tens of micrometers. The tactual sense was also compared with leathers and closes. The tendency of the pillar textures was correlated with that of leathers and closes. The micro-groove-textures had distinguishing characteristics compared with these larger textures.
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