| abstract |
The present invention provides a film which is a fiber layer containing a fiber aggregate and a liquid agent for application to the skin, wherein the weight per unit area of the fiber aggregate and the dielectric constant of the liquid agent are within predetermined ranges , so as to obtain a film with controlled moisture permeability. A film for human skin, which is a film for human skin having a fiber layer, wherein the fiber layer is provided with a fiber aggregate and a liquid agent X, and the fiber aggregate is composed of fibers having a diameter of 50 nm or more and less than 10000 nm. It is formed by the accumulation of fibers formed of a water-insoluble polymer, and the liquid agent X exists between the fibers and on the surface of the fibers in the fiber aggregate, and the weight per unit area of the fiber aggregate Q is 0.08 mg/cm 2 or more and 1.0 mg/cm 2 or less, the weight P per unit area of the liquid agent X is 0.5 mg/cm 2 or more and 2.3 mg/cm 2 or less, the relative permittivity of the liquid agent X is 1.0 or more and 27 or less, the liquid agent X Component (a) is liquid at 20°C, and the relative dielectric constant is 0.5 or more and 20 or less oil preparation, and the content of the polyol in liquid preparation X as component (b) liquid at 20°C is 50 mass % the following. |