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    • 1. 发明申请
    • Tamper Event Detection Films, Systems and Methods
    • 篡改事件检测膜,系统和方法
    • US20080075934A1
    • 2008-03-27
    • US11835265
    • 2007-08-07
    • William BarlowW. LilacJeffrey MiddlesworthKeith Nelson
    • William BarlowW. LilacJeffrey MiddlesworthKeith Nelson
    • D21H21/44G08B1/00G08B13/14
    • B65D75/00B65D2101/00G08B13/126Y10T428/24835
    • The present technology relates to tamper evident films, systems and methods for detecting tamper events in films or film packages. The present technology is especially useful in applications for detecting tamper events with individually packaged goods, as well as with bulk packaging or wrapped pallets in circumstances where visual inspection is hampered or prevented. In one or more preferred systems, 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, shrink wrap, bagging or stretchhooder. In at least one particularly preferred embodiment, films of the present technology are stretch films having conductive ink patterns applied thereto that remain conductive when the films are stretched to a percent stretch of about 1% or greater. In other embodiments, a conductive material can be separately wrapped and/or cowrapped in conjunction with a film. Preferred tamper detection systems of the present technology also utilize radio frequency identification technology to indicate whether a tamper event has occurred.
    • 本技术涉及用于检测膜或膜包装中的篡改事件的防拆封膜,系统和方法。 本技术特别适用于在单独包装的货物检测篡改事件的应用中,以及在目视检查受到阻碍或阻止的情况下的散装包装或包装的托盘。 在一个或多个优选的系统中,本技术的薄膜和方法利用导电图案,传感器和/或报警电路以及诸如拉伸薄膜,收缩包装,装袋或弹性拉伸装置的包装薄膜。 在至少一个特别优选的实施方案中,本技术的薄膜是具有施加到其上的导电油墨图案的拉伸薄膜,当薄膜拉伸至约1%或更大的百分比时,其保持导电性。 在其他实施例中,导电材料可以与薄膜分开包裹和/或包扎。 本技术的优选篡改检测系统还利用射频识别技术来指示是否发生了篡改事件。