发明名称 Hologram laminates
摘要 There are provided a hologram laminate and a hologram label which do not involve any problem in the production process per se of forging preventive labels using a volume hologram, can provide a reliable process of the attainment of forgery preventive effect, and can make difficult to notice the signs of the forgery preventive processing. In applying a protective film 108 onto a hologram 107 through a second pressure-sensitive adhesive 109, the adhesive strength is partially varied. By virtue of this construction, upon separation of the protective film 108, the second pressure-sensitive adhesive 109 is partially left on the hologram 107, so that the fact of the separation can be found out. Likewise, the adhesive strength of a first pressure-sensitive adhesive 106 can be partially changed. Further, the adhesive strength of the first pressure-sensitive adhesive 106 is larger than 1% tensile strength of the hologram 107. This can realize a property such that, as soon as the separation of the hologram 107 is attempted, the hologram 107 is elongated and undergoes a color change.
申请公布号 US2003059565(A1) 申请公布日期 2003.03.27
申请号 US20020254934 申请日期 2002.09.26
申请人 DAI NIPPON PRINTING CO., LTD. 发明人 OTAKI HIROYUKI;UEDA KENJI;NOUJIMA FUMIKO
分类号 G03H1/04;G03H1/18;(IPC1-7):B32B9/00 主分类号 G03H1/04
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