Patent ID: 8384862

Claim:
A production method of a nanoimprint film formed on a base, the nanoimprint film having a top-side surface with nanosized protrusions and recesses formed thereon, a distance between peaks of adjacent protrusions of the nanoimprint film being 500 nm or smaller, the production method comprising: a first step of applying a UV-curable resin on a top-side surface of a base containing a UV-absorbing component to form a film; a second step of irradiating the film upstream of a mold with UV light applied to a top-side surface of the film made of UV-curable resin to form a semi-cured film; a third step of imprinting nanosized protrusions and recesses on the semi-cured film by pressing the mold to the top-side surface of the semi-cured film after irradiating the film to form the semi-cured film having a surface with protrusions and recesses formed thereon; and a fourth step of curing the semi-cured film with protrusions and recesses to form a nanoimprint film.