PROBLEM TO BE SOLVED: To solve a point which has not been solved by a conventional moisture transpiration (insensible transpiration) measure, that is (1) measuring the insensible transpiration while suppressing sweat under a situation having a risk of sweat due to high atmospheric temperature and body temperature and (2) evaluating skin barrier function by correcting effect from humidity in outside air and body temperature.SOLUTION: Insensible transpiration may be measured without inhibition by sweat when skin is cooled in advance since sweating is a phenomenon for reducing body temperature (skin temperature). That is, it is preferable to keep environment temperature of the skin at a lower temperature while several ten seconds for measuring moisture transpiration by arranging a cooling plate or a cooling device on a surface contacting the skin. In addition to the insensible transpiration obtained by such way, skin surface temperature and environment temperature/humidity are measured, and a resistant model to moisture penetration of the skin is constructed for obtaining an amount relative to diffusing speed of moisture from a virtual water source having 100% humidity as the skin to outer environment.COPYRIGHT: (C)2015,JPO&INPIT【課題】従来の水分蒸散(不感蒸泄)計が解決できなかった点、即ち、(1)気温や体温が高く発汗の懸念がある状況において、発汗を抑制して不感蒸泄を測定すること、および、(2)外気湿度や体温の影響を補正することで皮膚バリア機能の評価を行なうこと、が課題である。【解決手段】発汗は体温(皮膚温)を下げるために起こる現象であるから、あらかじめ皮膚を冷却すれば発汗に阻害されることなく不感蒸泄を測定できる。即ち、皮膚に接触する面に冷却板や冷却装置を配置することで、水分蒸散を測定する数十秒間の間、皮膚を環境温度より低く保てばよい。このようにして得た不感蒸泄量に加え、皮膚表面温度および環境温度・湿度を測り、皮膚の水分透過に対する抵抗のモデルを構築すると、皮膚という湿度100%の仮想的水源から外部環境へ拡散する水分の速度に比例する量、即ちバリア指標が得られる。【選択図】図1
