PROCESS FOR PRODUCING ARTICLE HAVING FINELY RUGGED STRUCTURE ON SURFACE

摘要

The present invention relates to a method for producing an article having a fine concave and convex structure on a surface thereof, comprising the following steps (i) to (iii): (i) step of sandwiching a photocurable composition between a mold having an inverted structure of the fine concave and convex structure on a surface thereof and a substrate such that the photocurable composition is in contact with the surface having the inverted structure of the mold; (ii) step of irradiating the photocurable composition with light while keeping the photocurable composition sandwiched between the mold and the substrate to cure the photocurable composition to form a cured product; and (iii) step of separating the mold from the cured product to obtain an article comprising the substrate having on a surface thereof the cured product having the fine concave and convex structure on a surface thereof, in which the mold contains TiO 2 -containing quartz glass, and at least the step (i) is conducted in a helium gas atmosphere.