Abstract
The relationship between coolness and sensation of comfort was investigated as aerosol spray was applied to the skin. Sensory evaluation, such as Scheffe's method of paired comparison (modified method by Nakaya), was carried out to investigate the difference in coolness between samples of water and ethanol in various concentrations. Subjects were also asked whether or not they experienced the “shittori” sensation, a Japanese term defined as the sensation perceived when individuals feel that their skin is maintaining adequate moisture. The distribution of skin surface temperature before and after spraying was photographed using thermography.
Subjects reported feeling a strong coolness as well as an uncomfortable sensation when the skin surface was moistened using the aerosol spray. The 1/3 (w/w) mixture of water and ethanol was the most preferred ratio for producing a thermal comfort sensation
The ratio of water in the spray was high when the room temperature was 20°C, and coolness was accompanied by the “shittori” sensation
