发明名称 |
PROCEDE DE TRAITEMENT DE DOCUMENTS DESTINE A PERTURBER LA REPRODUCTION PAR PHOTOCOPIE ET PRODUITS POUR LA MISE EN OEUVRE DE CE PROCEDE |
摘要 |
The disclosed method comprises the treatment of a document surface with a transparent matrix (3) having dispersed therein photoluminescent materials (4). According to a first embodiment, said photoluminescent materials (4) form a luminous cascade absorbing the incident light radiation and re-emitting said radiation in a wavelength band of low sensitivity for photocopying machines. According to another embodiment, said photoluminescent materials (4) form a complementary couple for the eye chromaticity curve. The protection of a document may be carried out by coating or spraying a doped matrix (3) or by printing on a pretreated paper.
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申请公布号 |
FR2603918(A1) |
申请公布日期 |
1988.03.18 |
申请号 |
FR19860012872 |
申请日期 |
1986.09.15 |
申请人 |
GRAVISSE PHILIPPE |
发明人 |
PHILIPPE GRAVISSE;CLAUDE BERNARDI |
分类号 |
G03C5/08;G03G21/04;(IPC1-7):D21H5/10;D21H3/10 |
主分类号 |
G03C5/08 |
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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