Perception of Translucency and Glossiness: Influence of the Optical Scattering Properties on Sensory Evaluation

In the cosmetics industry, fine particles suspended or dispersed in a medium are widely used. Optical properties of can be an indicator for evaluating performance cosmetic product, such as ultraviolet protection capacity sunscreens and also its appearance. However, relationship between optical appearance product has not been clarified. this study, dispersions with titanium dioxide zinc oxide were used scattering to clarify relation their changes visual perception. For perception, sensory tests human panelists performed using custom-designed apparatus inspect samples evaluate two quantities, “glossiness” “translucency”. The test employed Thurston’s one-pair comparison method, total 18 asked samples. showed that translucency became stronger coefficient decreased. On other hand, only group highest slightly low glossiness. contrast, little difference glossiness due coefficients. results study indicate products influenced by controlling medium.