发明名称 |
Security marking method and composition |
摘要 |
A security marking method and composition wherein a first marking is applied to a surface of a substrate with a mixture of a printing medium and a first composition, wherein the first marking is visible to an unaided human eye and is indistinguishable from a marking applied with the printing medium alone, to an unaided human eye when illuminated by visible light or ultraviolet light. A second composition is added either with the mixture or thereafter, wherein the second composition is reactable with the first composition to fluoresce and wherein the fluorescing is only visible to an unaided human eye when illuminated by ultraviolet light.
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申请公布号 |
US5516362(A) |
申请公布日期 |
1996.05.14 |
申请号 |
US19950462736 |
申请日期 |
1995.06.05 |
申请人 |
NOCOPI TECHNOLOGIES, INC. |
发明人 |
GUNDJIAN, ARSHAVIR;KURUVILLA, ABRAHAM |
分类号 |
B42D15/10;B41M3/14;C09D11/00;G03G9/09;(IPC1-7):C09D11/00 |
主分类号 |
B42D15/10 |
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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