发明授权
- 专利标题: Hologram laminates
- 专利标题(中): 全息图层压板
-
申请号: US09422094申请日: 1999-10-20
-
公开(公告)号: US06482489B1公开(公告)日: 2002-11-19
- 发明人: Hiroyuki Otaki , Kenji Ueda , Fumiko Noujima
- 申请人: Hiroyuki Otaki , Kenji Ueda , Fumiko Noujima
- 优先权: JP10-298708 19981020; JP10-349068 19981208; JP10-349090 19981208; JP11-090062 19990330; JP11-214331 19990728
- 主分类号: B42D1500
- IPC分类号: B42D1500
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.
信息查询