| abstract |
Quantitative reproducibility of antifouling property, fingerprint adhesion or fingerprint removability of surfaces of various objects such as optical discs such as read-only optical discs, optical recording discs, magneto-optical recording discs, various displays such as CRTs, glass, etc. To provide an inexpensive artificial fingerprint liquid for good evaluation. An artificial fingerprint liquid comprising a particulate material and a dispersion medium capable of dispersing the particulate material. The dispersion medium preferably has a surface tension at 25 ° C. in the range of 20 to 50 mN / m. The dispersion medium is preferably at least one selected from higher fatty acids, higher fatty acid derivatives, terpenes, and terpene derivatives. The particulate material is selected from at least one selected from inorganic fine particles and organic fine particles. [Selection] Figure 1 |