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Tamper Evident Carton Opening Feature

IP.com Disclosure Number: IPCOM000126495D
Publication Date: 2005-Jul-21
Document File: 3 page(s) / 138K

Publishing Venue

The IP.com Prior Art Database

Related People

Dave Chauvette: AUTHOR [+4]

Abstract

Detecting tampering of packaged consumer products is desirable for a wide range of products such as absorbent articles. For improved tamper evident packaging, we propose a carton opening feature wherein perforations on the closure flap tear away upon opening so that the carton can not be resealed without showing evidence of being opened previously. This feature will help assure that the product was never previously opened and is safe to use.

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Tamper Evident Carton Opening Feature

Dave Chauvette, Jeff Heinen, Kami Bechyne, and Teresa Zander Kimberly-Clark Corporation, Neenah, Wisconsin

Detecting tampering of packaged consumer products is desirable for a wide range of products such as absorbent articles. For improved tamper evident packaging, we propose a carton opening feature wherein perforations on the closure flap tear away upon opening so that the carton can not be resealed without showing evidence of being opened previously. This feature will help assure that the product was never previously opened and is safe to use.

The carton opening feature has specific perforation lines on the second major flap (see Figure 1). When the carton is opened the perforation lines tear and portions of the second major flap stay attached to the first major flap (see the photo in Figure 2). Once the section(s) tear away it becomes difficult to reseal the flaps without showing evidence of having been opened previously thus providing tamper evidence.

Additional methods to provide tamper evident features include adding a fringed or frayed edge to the second major flap edge or to the perforated tab to weaken the paper board (see Figure 3) for a greater potential of paper board tear due to smaller area required to cause a tear. A weakened laminate structure at the edges or tab edges would also create a torn or obviously delaminated area when opened. Adding color to the inside walls of the carton or tab or using two sided paperboard such as solid unbleached sulphate board (one side being white and the other being light brown) would help the consumer/user see th...