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 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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