Invention Grant
- Patent Title: Optically variable security threads and stripes
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Application No.: US15103553Application Date: 2013-12-11
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Publication No.: US10166808B2Publication Date: 2019-01-01
- Inventor: Gebhard Ritter , Pierre Degott , Xiang Li , Fang Yuan
- Applicant: SICPA HOLDING SA , CHINA BANKNOTE SICPA SECURITY INK CO., LTD.
- Applicant Address: CH Prilly CN Beijing
- Assignee: SICPA HOLDING SA,CHINA BANKNOTE SICPA SECURITY INK CO., LTD.
- Current Assignee: SICPA HOLDING SA,CHINA BANKNOTE SICPA SECURITY INK CO., LTD.
- Current Assignee Address: CH Prilly CN Beijing
- Agency: Muncy, Geissler, Olds & Lowe, P.C.
- International Application: PCT/CN2013/089050 WO 20131211
- International Announcement: WO2015/085505 WO 20150618
- Main IPC: B42D25/355
- IPC: B42D25/355 ; B42D25/369 ; B42D25/351 ; B42D25/328 ; B42D25/378 ; B42D25/373 ; B42D25/29 ; B42D25/324 ; B42D25/342 ; B42D25/45

Abstract:
Optically variable security threads or stripes to be incorporated into or onto security documents, relate to the field of the protection of value documents and value commercial goods against counterfeit and illegal reproduction. The security threads or stripes comprise a) an optically variable layer; b) a color constant layer having a color matching the color impression of the optically variable layer at a viewing angle; c) a holographic metallic layer; and d) and a transparent substrate, wherein the optically variable layer, the color constant layer and the holographic metallic layer are at least partially jointly visible from at least one side of the security thread or stripe.
Public/Granted literature
- US20160325578A1 OPTICALLY VARIABLE SECURITY THREADS AND STRIPES Public/Granted day:2016-11-10
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