| 摘要 |
<P>PROBLEM TO BE SOLVED: To reduce surface reflection with a simple method, enhance optical effects due to hologram and a diffraction structure, and provide added value to a commercial product by anti-counterfeiting effects, in a transfer foil having an OVD and attached to a medium which is the commercial product when used. <P>SOLUTION: The transfer foil includes: an adhesive layer; a diffraction structure formation layer located on the adhesive layer; and a reflection layer arranged on the diffraction structure side of the diffraction structure formation layer. A reflection reduction structure is provided on a side opposite to the diffraction structure side on the diffraction structure formation layer. The reflection reduction structure is composed of a minute irregular structure having 250-400 nm of a distance between apexes and 0.25 or more of an aspect ratio. <P>COPYRIGHT: (C)2013,JPO&INPIT |
