Patent ID: 7493801

Claim:
A testing method for a surface of an object other than an optical information medium, comprising: adhering an artificial fingerprint liquid comprising a fine-particle-form substance and a dispersion medium capable of dispersing the fine-particle-form substance onto the object surface to be evaluated; measuring a property of the surface of the object; and evaluating an anti-staining property and/or a fingerprint adhering property of the surface of the object based on the property of the surface of the object measured in the measuring, wherein the fine-particle-form substance includes at least one selected from the group consisting of silica fine particles, alumina fine particles, iron oxide fine particles, keratin fine particles, chitin fine particles, chitosan fine particles, acrylic fine particles, styrene fine particles, divinylbenzene fine particles, polyamide fine particles, polyimide fine particles, polyurethane fine particles, and melamine fine particles, and/or includes Kanto loam (JIS TEST POWDER 1), and wherein the dispersion medium is at least one selected from a higher fatty acid, a derivative of the higher fatty acid, terpenes, and derivatives of terpenes.