Hermetically sealed package with heat-sealable tear strip...

Details Hermetically sealed package with heat-sealable tear strip... Hermetically sealed package with heat-sealable tear strip...

B - Operations, Transporting

65

D

B65D 33/16 (2006.01)

Patent

CA 2183720

An easy open package adapted for hermetic sealing of its contents. The package includes a flexible packaging film forming a first package wall and a tear strip sealed to an inner surface of the first package wall. The tear strip includes a core layer formed of oriented polypropylene so as to provide sufficient tensile strength for tearing the package. The core layer includes first and second surfaces. An outer sealant layer is adhered to the first surface of the oriented core layer and is sealed to the inner surface of the first package wall. An inner sealant layer is adhered to the second surface of the oriented core layer. A second package wall is connected to the first package wall around its periphery to define a product receiving chamber between the first and second package walls. The second package wall is adapted to be sealed to the inner sealant layer of the tear strip in a heat seal zone so as to hermetically seal the tear strip between the first and second package walls. A lateral edge of the tear strip extends beyond the heat seal zone into the chamber to provide uniform and reliable opening of the package upon removal of the tear strip. An aperture extends through the package walls and the tear strip such that the tear strip reinforces the package walls to prevent tearing of the package walls that may otherwise be caused by support members inserted through the aperture.

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