发明授权
- 专利标题： Security paper with authenticity features in the form of luminescing substances
- 专利标题（中）： 具有发光物质形式的真实性特征的安全纸
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申请号： US314843申请日： 1981-10-23
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公开(公告)号： US4451530A公开(公告)日： 1984-05-29
- 发明人: Wittich Kaule , Gerhard Schwenk , Gerhard Stenzel
- 申请人： Wittich Kaule , Gerhard Schwenk , Gerhard Stenzel
- 申请人地址： DEX Munich
- 专利权人： GAO Gesellschaft fur Automation und Organisation mbH.
- 当前专利权人： GAO Gesellschaft fur Automation und Organisation mbH.
- 当前专利权人地址： DEX Munich
- 优先权： DEX3020652 19800530
- 主分类号： B41M3/14
- IPC分类号： B41M3/14 ; B42D15/00 ; B42D15/10 ; B44F1/12 ; D21H21/40 ; D21H21/48 ; G06K19/14 ; G07D7/1205 ; G07D7/121 ; B32B5/16 ; G01J1/42
摘要：
Security papers with luminescing authenticity features worked into them or printed on them. The authenticity features used consist of a luminophore and one or more absorbing materials by which the emission and/or the excitation spectrum of the luminophore is changed in detectable fashion. The dyestuff can be present as an admixture to the luminophore, as a coating of a luminophore layer or as a coating on luminophore powder grains. For checking the authenticity of documents the emission spectrum of the luminophore is not used but the change generated by the technology used in the emission or excitation spectra.
公开/授权文献
- US5495052A Process for producing enantiomerically enriched guaifenesin 公开/授权日：1996-02-27
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