| 摘要 |
<p>The present technology relates to tamper evident films, systems and methodsfor detecting tamper events in films or film packages. In one or more preferredsystems, films and methods of the present technology utilize a conductive pattern,a sensor and/or alarm circuit, and a wrapping film, such as a stretch film, shrinkwrap, bagging or stretchhooder In at least one particularly preferred embodiment,films of the present technology are stretch films having conductive ink patternsapplied thereto that remain conductive when the films are stretched to a percentstretch of about 1 % or greater In other embodiments, a conductive matenal canbe separately wrapped and/or cowrapped in conjunction with a film Preferredtamper detection systems of the present technology also utilize radio frequencyidentification technology to indicate whether a tamper event has occurred.</p> |
