公开(公告)号：US20230383130A1

公开(公告)日：2023-11-30

申请号：US18028263

申请日：2021-08-30

Applicant: Gleitsmann Security Inks GmbH ,  Leuchtstoffwerk Breitungen GmbH

Inventor： Katharina Huth ,  Roland Gutmann ,  Frank Adrian Carl ,  Dominik Uhlich ,  Benedikt Daumann ,  Sylke Rösler ,  Thomas Bitzer

IPC: C09D11/037 ,  C09D11/50 ,  C09D5/22

CPC classification number: C09D11/037 ,  C09D11/50 ,  C09D5/22

Abstract: 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.