Resealable Laminate for Heat Sealed Packaging

Inactive Publication Date: 2012-07-12
AVERY DENNISON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0006]The difficulties and drawbacks associated with previous systems and methods are overcome by the present invention for a resealable package assembly. In a one aspect of the invention, a resealable packaging laminate is provided comprising an outer layer defines an outer face. The packaging laminate also comprises a pressure sensitive adhesive layer adjacent to the outer layer. The packaging laminate further comprises an inner sealing layer, the inner sealing layer defining an inner face. The packaging laminate also comprises a filmic layer adjacent to the inner sealing layer. And, the packaging laminate additionally comprises a release layer disposed between the pressure sensitive adhesive layer and the filmic layer. The release layer is at least in partial contact with the pressure sensitiv

Problems solved by technology

Although satisfactory in certain respects, the production of resealable packaging is relatively expensi

Method used

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  • Resealable Laminate for Heat Sealed Packaging
  • Resealable Laminate for Heat Sealed Packaging
  • Resealable Laminate for Heat Sealed Packaging

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Embodiment Construction

[0016]The present invention provides a resealable package assembly optionally having high barrier properties, which is relatively simple in construction and manufacture, and which can be readily initially opened and securely resealed. The present invention also provides a laminate assembly with a resealable flap that can be used in a wide array of packaging applications. The packaging assemblies and laminates described herein are particularly useful in forming heat sealed, flexible wall, disposable bag or bag-like containers which are resealable.

[0017]A significant feature of the present invention is the incorporation of a release layer within the multilayer laminate, and preferably immediately adjacent to a pressure sensitive adhesive layer. As explained in greater detail herein, the use of a release layer in the laminate and particularly in a corresponding flap member, significantly reduces the amount of force otherwise required to initially open a sealed container. This feature p...

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Abstract

A resealable package assembly is described. The package assembly includes a selectively positionable flap that covers an aperture or enables access through the aperture into the package. The flap and package include provisions for releasably engaging the flap to the package to seal the interior of the package. Provisions for grasping the tab and indicating whether tampering has occurred are also described.

Description

CROSS-REFERENCE TO RELATED APPLICATION[0001]The present application claims priority to U.S. Provisional Patent Application No. 61 / 241,416 filed Sep. 11, 2009, which is incorporated herein by reference in its entirety.FIELD OF THE INVENTION[0002]The present invention relates to heat sealable, flexible wall, disposable packages that are also resealable.BACKGROUND OF THE INVENTION[0003]A wide array of resealable packages or containers are known. Typically, a container such as in the form of a flexible bag or rigid walled housing, is provided with an opening that serves to provide access to the interior of the container. A lid or cover is positioned over the opening and bonded to the container, typically by heat sealing, to enclose and seal the container interior and its contents from the external environment. For bag type containers, a portion of the flexible wall of the bag may serve as the cover and be folded or otherwise positioned over an opening in the bag. A reseal feature enable...

Claims

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Application Information

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IPC IPC(8): B32B3/00B65D33/18B32B7/03
CPCB32B27/00Y10T428/24802B65D2575/586B65D75/5833B32B7/06B32B7/12B32B25/08B32B25/14B32B27/10B32B27/18B32B27/286B32B27/302B32B27/304B32B27/306B32B27/308B32B27/322B32B27/325B32B27/34B32B27/36B32B27/40B32B2255/10B32B2255/205B32B2255/26B32B2270/00B32B2307/31B32B2307/514B32B2307/58B32B2307/748B32B2307/75B32B7/03Y10T428/1424Y10T428/1452Y10T428/1457Y10T428/1462Y10T428/1476B32B27/08B32B27/32B32B2307/7244B32B2307/7246B32B2439/00B32B2439/46B32B2439/70Y10T428/24942B65D33/00B65D33/24Y10T428/1379Y10T428/1383B32B2250/24B65D33/20B65D65/14B65D65/40B65D75/5855
Inventor DUAN, XINGRONGDAFFNER, MARTINHALLACK, BASSAM
Owner AVERY DENNISON CORP
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