Ink jet printable security document
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United States of America Patent
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N/A
Issued Date -
Mar 24, 2005
app pub date -
Sep 18, 2003
filing date -
Sep 18, 2003
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
A security document including layers of security coatings disposed on a substrate. The coating layers include a first security coating disposed on the substrate and a second security coating disposed on the first security coating. One of the security coatings is a solvent-sensitive coating, while the other is an abrasion-sensitive coating. Together, these coatings ensure that attempts at tampering with the document produce notorious indicia of such tampering. The security document is particularly adapted for ink jet printing. Additional security features may include thermochromic ink, bar codes, and pantographic warnings, as well as another solvent-sensitive security coating that is distinct from the earlier-described solvent-sensitive coating. By way of example, this second solvent-sensitive coating could be configured to be sensitive to particular forms of tampering, such as where solutions containing phosphoric acid are used to tamper with the document.
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