发明名称 Security ink, used for printing e.g. stamps
摘要 The composition comprises a phosphorescent ink, an ink containing metallic particles and a varnish. Printing ink compositions which, when printed on a support, are not exactly reproducible when copied by a photocopier or by other means. The colour of the copied image is either different from the original or becomes invisible. The composition comprises a phosphorescent ink, an ink containing metallic particles and a varnish.
申请公布号 FR2774691(A1) 申请公布日期 1999.08.13
申请号 FR19980001405 申请日期 1998.02.06
申请人 LA POSTE 发明人 AIT SLIMANE SMAIL
分类号 B41M3/14;C09D11/00;(IPC1-7):C09D11/02 主分类号 B41M3/14
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