Hologram laminate and hologram label

• US 20060193021A1
• Filed: 05/02/2006
• Published: 08/31/2006
• Est. Priority Date: 05/30/2001
• Status: Active Grant

• Current Assignee: Dai Nippon Printing Company Limited
• Original Assignee: Dai Nippon Printing Company Limited
• Inventors: Watanabe, Masachika, Ueda, Kenji, Ohtaki, Hiroyuki, Ishimoto, Miwa
• Granted Patent: US 7,268,926 B2
• Time in Patent Office: Days
• US Class Current: 359/2
• CPC Class Codes: B42D 25/328 Diffraction gratings; Holograms
• CPC Class Codes: G03H 1/0011 for security or authentication holograms on information-bearing cards B42D25/328; testing papers with holograms G07D7/0032
• CPC Class Codes: G03H 1/0252 Laminate comprising a hologram layer
• CPC Class Codes: G03H 2001/2635 Mixed volume and surface relief holograms
• CPC Class Codes: G03H 2240/50 Parameters or numerical values associated with holography, e.g. peel strength
• CPC Class Codes: G03H 2250/10 arranged to be transferred onto a carrier body adhesive layer G03H2250/35
• CPC Class Codes: G09F 3/0291 Labels or tickets undergoing a change under particular conditions, e.g. heat, radiation, passage of time
• CPC Class Codes: G09F 3/0292 tamper indicating labels
• CPC Class Codes: G09F 3/0294 where the change is not permanent, e.g. labels only readable under a special light, temperature indicating labels and the like
• CPC Class Codes: Y10T 428/14 Layer or component removable to expose adhesive

Abstract

A hologram laminate allows traces of separation of the hologram to be clearly left on both the adherend and the hologram label and hence makes it possible to prevent reuse of the hologram and is excellent in graphical design function and suitable for certification purposes. A hologram label used for the fabrication of the hologram laminate is also provided. The hologram laminate has a colored layer, a release pattern, a transparent film, a hologram layer and a surface protective layer laminated on an adherend in the order mentioned. The hologram layer includes a volume hologram layer and a relief hologram layer having a transparent thin-film layer over the surface of the relief interference fringe pattern. The volume hologram layer and the relief hologram layer are superimposed so as to be switchable from one to another. The hologram laminate is separable between the adherend and the transparent film. When the hologram is separated, the colored layer is left on the adherend in a pattern corresponding to the release pattern. The hologram label has a release sheet in place of the adherend in the hologram laminate.

Claims

1. A hologram laminate comprising a colored layer, a release pattern, a transparent film, a hologram layer and a surface protective layer laminated on an adherend in order mentioned, said hologram layer including a volumen hologram layer having a relief hologram forming relief interference fringe pattern formed on a surface thereof, said hologram layer further including a transparent thin-film layer over a surface of said relief interference fringe pattern, whereby a volume hologram and a relief hologram are superimposed so as to be switchable from one to another,

said hologram laminate being separable between said adherend and said transparent film,

wherein said hologram laminate is separated, said colored layer is left on said adherend in a pattern corresponding to said release pattern.

2. A hologram label comprising a colored layer, a release pattern, a transparent film, a hologram layer and a surface protective layer laminated on a release sheet in order mentioned, said hologram layer including a volume hologram layer having a relief hologram forming relief interference fringe pattern formed on a surface thereof, said hologram layer further including a transparent thin-film layer over a surface of said relief interference fringe pattern, whereby a volume hologram and a relief hologram are superimposed so as to be switchable from one to another,

said hologram label being separable between an adherend and said transparent film when said hologram label is stuck on the adherend at a surface thereof exposed by removal of said release sheet,

wherein when said hologram label is separated, said colored layer is left on said adherend in a pattern corresponding to said release pattern.