Abstract: A tamper-evident package utilizes a transparent resealable adhesive structure such as a tape or a label to cover the portal opening. When the package is first opened, frangible portions of the package between adjacent arcuate cuts and slits that define the portal are torn and distorted so that re-registration of the opposing laterally-extending edges of the portal upon reclosing is not possible. This results in a package which is visually tamper-evident. The tamper-evident condition can be enhanced by graphics or other printing on the front of the package in the area of the arcuate cuts and the center of the portal to make the misalignment of a resealed portal viewed through the transparent reseal structure more visually apparent. In one embodiment of the invention, a series of arcuate cuts are centered laterally and are flanked on the right and left sides by two continuous wavy slits, which together form the portal.

Abstract: A tamper-evident package utilizes a transparent resealable adhesive structure such as a tape or a label to cover the closure opening. Upon a first opening of the package frangible portions of the package front between adjacent arcuate cuts and slits defining the opening are torn. This tearing distorts the packaging film so that re-registration of the opposing lateral edges upon reclosing is not possible. This results in a package which is visually tamper-evident. The tamper-evident condition can be enhanced by graphics or other printing on the front of the package in the area of the closure to make the misalignment of a resealed closure viewed through the transparent structure more visually apparent. In one embodiment of the invention a series of arcuate cuts are centered laterally and are flanked on the right and left sides by two continuous wavy slits which form a portion of the closure opening.

Abstract: A tamper-evident package utilizes a transparent resealable adhesive structure such as a tape or a label to cover the closure opening. Upon a first opening of the package frangible portions of the package front between adjacent arcuate cuts and slits defining the opening are torn. This tearing distorts the packaging film so that re-registration of the opposing lateral edges upon reclosing is not possible. This results in a package which is visually tamper-evident. The tamper-evident condition can be enhanced by graphics or other printing on the front of the package in the area of the closure to make the misalignment of a resealed closure viewed through the transparent structure more visually apparent. In one embodiment of the invention a series of arcuate cuts are centered laterally and are flanked on the right and left sides by two continuous wavy slits which form a portion of the closure opening.

Abstract: A tamper-evident package utilizes a transparent resealable adhesive structure such as a tape or a label to cover the closure opening. Upon a first opening of the package frangible portions of the package front between adjacent disconnected arcuate cuts are torn. This results in a package which is visually tamper-evident after a first opening. A series of disconnected arcuate cuts comprising an apex and two free ends are arranged in laterally extending opposing top and bottom rows. In one case the cuts have portions of their distal free ends which overlap vertically and are parallel and aligned with the longitudinal axis of the package. The cuts are preferably centered laterally and are flanked on the right and left sides by two continuous wavy slits. One row of the cuts can comprise cup shaped cuts with a flat linear portion of each cut lying along its apex.

Abstract: A bag package for consumable products such as food items includes a lateral slit cut into a front panel of the bag so that the bag can be pulled open along the slit to provide access to the bag contents. The slit is preferably cut along a wavy line which is substantially sinusoidal in nature. The cut line may have a uniform wave pattern or have segments along the slit of different wave lengths. The wavy slit results in a package opening having opposing peaks and valleys along the edges on either side of the opening. When the package is closed beneath a transparent reseal tape the peaks and valleys of the opposing edges of the opening become misaligned and thus provide visual evidence of tampering.