MICROSCOPIC ROUGHNESS STRUCTURE WITH PROTECTIVE FILM AND FABRICATION METHOD THEREFOR

摘要

Provided is a protective film-attached microscopic roughness structure that has a protective film affixed to a microscopic roughness structure having a microscopically rough structure on the surface, in which the water contact angle of the surface of the microscopic roughness structure is 40° or less, the compressive stress obtainable when the adhesive layer of the protective film is compressed in the thickness direction to a compression ratio of 20% is 0.6 MPa to 3.0 MPa. Alternatively, in the infrared absorption spectrum of the surface on the microscopically rough structure side of the microscopic roughness structure, the ratio (A1/A2) of the peak area A1 having the absorption maximum in the region of 3700 cm -1 to 3100 cm -1 , and the peak area A2 having the absorption maximum in the region of 1730 ± 10 cm -1 , is 0.1 to 0.8; and in the surface of the adhesive layer of the protective film, the ratio (B1/B2) of the peak area B1 having the absorption maximum in the region of 3700 cm -1 to 3100 cm -1 , and the peak area B2 having the absorption maximum in the region of 1730 ± 10 cm -1 , is 0.6 to 1.3.