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AssigneesSicpa Holdings SA, Zhongchao Special Security Technology Co., Ltd, China Banknote Sicpa Security Ink Co., Ltd., China Banknote Printing and Minting Corp.
InventorsGebhard Ritter, Raynald Demange, Pierre Degott, Zhongdong Ye, Yuanqi Wu, Fangyi Sun, Weiru Wang, Xiang Li
Estimating the term…
In the field of protection of value documents and value commercial goods, the present disclosure relates to the field of security threads or stripes to be incorporated into or onto security documents, and security documents having security threads or stripes. The security threads or stripes include i) first optically variable layer imparting a first different color impression at different viewing angles, ii) second optically variable layer imparting a second different color impression at different viewing angles, iii) first color constant layer having a color matching color impression of the first or second optically variable layer at a first viewing angle, iv) second color constant layer having a color matching color impression of the first or second optically variable layer at a second viewing angle, and v) a substrate. The layers are jointly visible from one side of the security thread or stripe.
A security thread or stripe comprising:
Dependencies are inferred from the claim text.