Resealable Laminate For Heat Sealed Packaging
AssigneeAvery Dennison Corporation
InventorsMartin Daffner, Bassam Hallak
Life of this patent
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Abstract
A resealable and disposable package assembly is described. The assembly includes a container and a multilayer cover laminate that are bonded to one another to initially seal the contents of the package. The package can then be easily opened by at least partially separating the cover laminate along a predesignated interface. The package can be reliably and effectively sealed by recontacting the previously separated cover portions to one another.
Claims20
A resealable package assembly, the package assembly comprising a container and a cover, the container and the cover adapted to sealingly engage one another,
- the container including:
- a polymeric substrate defining a sealing face, and
- a first sealing layer disposed on the sealing face of the polymeric substrate;
- wherein the cover defines an outer face and an inner face, the inner face directed towards the sealing face of the polymeric substrate upon sealingly engaging the container and the cover to one another, the cover including:
- an outer substrate providing the outer face of the cover,
- an inner substrate,
- an adhesive layer disposed between the outer substrate and the inner substrate,
- a second sealing layer disposed on the inner substrate, the second sealing layer providing the inner face of the cover, and optionally
- a release layer disposed between the inner substrate and the pressure sensitive adhesive layer, and immediately adjacent to the pressure sensitive adhesive layer.
A method for opening and resealing a previously thermally sealed package, the package comprising a container component and a cover component, wherein the container component includes a polymeric substrate defining a sealing face, and a first sealing layer disposed on the sealing face of the container substrate;
- wherein the cover component defines an outer face and an inner face, the inner face directed towards the sealing face of the container substrate, the cover including an outer substrate providing the outer face of the cover, an inner substrate, an adhesive layer disposed between the outer substrate and the inner substrate, a second sealing layer disposed on the inner substrate, the second sealing layer providing the inner face of the cover, and a release layer disposed between the inner substrate and the adhesive layer and contacting the adhesive layer, the container component and the cover component being thermally adhered to one another along the first and second sealing faces, the method comprising:
- disengaging a first portion of the cover component from a remaining second portion of the cover component and container component thermally adhered thereto, by separating the adhesive layer from the release layer to thereby open the package;
- and
- matingly contacting the adhesive to the release layer, to thereby reseal the package.
Dependencies are inferred from the claim text.