| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a security ink that permits a person who determines authenticity, even in the case of a forgery preventive medium composed of a plurality of security inks, to precisely understand at a glance the mutual positional relation of the plurality of the security inks without strict explanation on the kinds and the place of effects, achieves perfect mutual positioning of the plurality of the security inks and therefore permits clear and prompt determination of authenticity; and also to provide a forgery preventive medium printed with the security ink. <P>SOLUTION: A security ink comprising a first functional particle having a smaller particle size and a scaly substance having a larger particle size is applied and dried, so that the first functional particles are arranged to rim a pattern of the scaly substances. <P>COPYRIGHT: (C)2013,JPO&INPIT |
