Method for forming coating film

The present invention pertains to a method for forming a coating film, the coating film containing fibers and having excellent adhesiveness to the skin, through electrostatic spray directly to the skin. A method for forming a fiber-containing coating film on the surface of human skin or nails, the method being characterized by comprising electrostatically spraying composition A directly to the human skin or nails, wherein: composition A comprises components (a) to (c), i.e., (a) one or more volatile substances selected from alcohols and ketones, (b) a water-insoluble polymer for forming fibers, and (c) 0.2-25 mass% inclusive of water; and the ratio by mass (b/c) of component (b) to component (c) is 0.4-50 inclusive. 本发明涉及一种通过向皮肤直接静电喷雾而形成含有纤维且与皮肤的紧密贴合性良好的覆膜的方法。一种覆膜的制造方法，是在皮肤或指甲的表面制造含有纤维的覆膜的方法，其特征在于，向人的皮肤或指甲直接静电喷雾组合物A，组合物A含有以下的成分(a)、(b)和(c)：(a)选自醇和酮中的1种或2种以上的挥发性物质；(b)纤维形成用水不溶性聚合物；(c)水0.2质量％以上25质量％以下，成分(b)与成分(c)的质量比(b/c)为0.4以上50以下。