| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hologram seal which improves perceptivity of a hologram image and which has a high forgery preventing effect. <P>SOLUTION: The hologram seal is constituted by forming a peeling protection layer, a hologram forming layer, a reflective thin film layer and an adhesive layer in order on a base material. The hologram seal which improves perceptivity of the hologram image and further which has the high forgery preventing effect can be provided by using an optical thin film having lamination structure, wherein the reflective thin film layer has a silver alloy thin film layer and a ceramic material is formed on both surfaces or one surface adjoining the silver alloy thin film layer. <P>COPYRIGHT: (C)2008,JPO&INPIT</p> |
