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Security document

A technology for valuable documents and characteristic substances, applied in printing, information-carrying cards, printed matter, etc., can solve complex and other problems

Inactive Publication Date: 2006-11-22
GIESECKE & DEVRIENT GMBH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However the system known from WO 97 / 39428 has the disadvantage that complex authenticity checks can be carried out on value documents without being able to make any claims about the type or value of a particular value document

Method used

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Examples

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Embodiment Construction

[0045] The invention will now be explained using a banknote as an example. first, figure 1 with 2 A schematic representation of a banknote 10 is shown, which has four different characteristic substances and allows authenticity checking and value identification by different user groups. figure 1 A plan view of the banknote 10 is shown, figure 2 is along figure 1 Cross-section of line II-II.

[0046] figure 2 It is best shown that the two characteristic substances, namely the first characteristic substance 14 and the third characteristic substance 18 , are distributed uniformly in the form of particles in the volume of the paper base 12 of the bank note 10 . Particles of the first and third characteristic substances 14, 18 may be added to the pulp or fiber slurry prior to sheet formation, or incorporated into the fibrous matrix only after sheet formation.

[0047] In this embodiment, the first characteristic substance 14 is formed of a host lattice-doped luminescent subs...

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PUM

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Abstract

The invention relates to a security document, especially a bank note, comprising a security document substrate and at least two different marking characteristics which are used to examine the security document. According to the invention, a first marking characteristic is introduced into a volume of the substrate of the security document and a second marking characteristic is applied to the security document substrate in the form of a code.

Description

technical field [0001] The invention relates to a value document, in particular a banknote, having a value document substrate and at least two different characterizing substances for checking the value document. Background technique [0002] Print WO 97 / 39428 discloses a document of value whose substrate has, in one area, different machine-verifiable authenticity features for different security levels. The value document contains a machine-verifiable low-level security feature made of a single material. When interrogated, the low-level security feature provides a yes / no response indicating the presence or absence of the interrogated characteristic. Low-level security features are used for authenticity checks where simple detectors are used (eg retail outlets). [0003] Another similar machine-verifiable advanced security feature has the property of being difficult to detect to allow in-depth interrogation and a higher level of authentication of the value document. The ver...

Claims

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Application Information

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IPC IPC(8): B42D15/00B42D15/10
CPCB42D2035/16B42D25/29B42D25/382B42D25/305
Inventor 格哈德·施文克托马斯·吉林格哈德·斯滕泽尔威蒂克·考尔
Owner GIESECKE & DEVRIENT GMBH