发明名称 Counterfeiting prevention device having printing and birefringence pattern
摘要 The present invention provides a counterfeiting prevention device comprising a support, a patterned optically anisotropic layer having two or more regions of different birefringence, and a printed layer in this order, which further comprises a laminate film of retardation lower than 50 nm attached on said printed layer. The counterfeiting prevention device has high visibility of a latent image and durability.
申请公布号 EP2404763(B1) 申请公布日期 2013.12.18
申请号 EP20110173238 申请日期 2011.07.08
申请人 FUJIFILM CORPORATION 发明人 SUZUKI, SATOMI;KANEIWA, HIDEKI
分类号 B41M3/14;B42D15/00;G07D7/00 主分类号 B41M3/14
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