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公开(公告)号:EP3974483A1
公开(公告)日:2022-03-30
申请号:EP20199110.6
申请日:2020-09-29
发明人: HUTH, Katharina , GUTMANN, Roland , MICHEEL, Jörg , FISCHER, Tobias , CARL, Frank Adrian , UHLICH, Dominik , DAUMANN, Benedikt , RÖSLER, Sylke , BITZER, Thomas
IPC分类号: C09D11/02 , C09D11/037
摘要: A security ink contains at least a first fluorescent and phosphorescent pigment and a second fluorescent pigment, wherein the security ink if excited with a first wavelength emits radiation with a first emission spectrum, if excited with a second wavelength emits radiation with a second emission spectrum being different from the first emission spectrum, and after the excitation has been terminated emits radiation with a third emission spectrum being different from the first emission spectrum and being different from the second emission spectrum.