| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a hologram transfer sheet and a printed product which are hardly forged or altered and have high security property, that is, extremely high forgery preventing property. <P>SOLUTION: The hologram transfer sheet comprises a substrate and a transfer layer comprising at least a releasing layer, a relief forming layer, a metallic thin film layer, and an adhesive layer successively layered, wherein one of the releasing layer and the adhesive layer or both layers or a fluorescent layer under the conditions of a region having a pattern between the releasing layer and the relief forming layer contains two or more kinds of different fluorescent dyes (F1, F2 to Fn, wherein n is an integer≥2). The printed product with the transfer layer transferred and layered thereon simultaneously emits fluorescent light in two or more different colors at wavelengthsλ2,λ3,λ4 or the like, since the fluorescent dye F1 absorbing light at the wavelengthλ1 and emitting fluorescent light at the wavelengthλ2 and the fluorescent dye F2 absorbing light at the wavelengthλ2 and emitting fluorescent light at the wavelengthλ3 are used. <P>COPYRIGHT: (C)2006,JPO&NCIPI</p> |
