Security element in the form of threads or strips to be embedded in security documents and a method for producing and testing the same
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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-
Apr 23, 1996
Issued Date -
N/A
app pub date -
Feb 7, 1994
filing date -
Oct 26, 1992
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A security element that can be embedded in the form of a thread or strip in a security document, in particular a paper of value, is composed of two carrier sheets, each of which bears each of the marking substances allowing for detection of authenticity. The two carrier sheets are put together in such a way that the marking substances to be protected from mechanical abrasion and other external influences come to lie on the inside. The thread not only offers special protection for the marking substances, but can also be embedded in the paper substance easily due to its symmetrical structure and without showing any tendency to curl.
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