Unlock instant, AI-driven research and patent intelligence for your innovation.

Resealable laminate for heat sealed packaging

A technology for packaging laminated materials, laminated materials, applied in household packaging, packaging, packaging food, etc.

Active Publication Date: 2013-01-23
AVERY DENNISON CORP
View PDF19 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0015] The present invention overcomes the difficulties and deficiencies associated with previous systems and methods of resealable packaging assemblies

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Resealable laminate for heat sealed packaging
  • Resealable laminate for heat sealed packaging
  • Resealable laminate for heat sealed packaging

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0148] Example 1 - In a first series of investigations, a peel test was performed wherein the preferred pressure sensitive adhesive - previously described Adhesion of S692N to different substrates. Four different substrates were evaluated: glass, high-density polyethylene (HDPE), polyethylene terephthalate (PET), and polypropylene (PP). The adhesive was applied to each substrate at different adhesive coat weights. The peel strength of the adhesive to the substrate was then measured. Figure 9 Peel strength values ​​(expressed in N / in) measured for each substrate containing different amounts of the preferred adhesive (expressed in gsm) are illustrated. As will be appreciated, as the coating weight increases, the peel strength increases.

Embodiment 2

[0149] Example 2 - Measurement of preferred binders in another series of investigations with respect to the aforementioned four substrates - glass, HDPE, PET and PP Cycle Viscosity of S692N. Figure 10 Cyclic tack values ​​(expressed in N / in) measured for each substrate containing different amounts of adhesive (expressed in gsm) are illustrated. Cyclic tack increases as coating weight increases.

[0150] As previously discussed, the differences in peel strength and cycle tack between opposing surfaces of the pressure sensitive adhesive in the lid laminate can be used to achieve the desired lid behavior and resealing characteristics upon separation. Figure 9 and 10 It was shown that the coat weight or thickness of the pressure sensitive adhesive in the cover laminate can also affect the peel strength and cycle tack between the adhesive and layers located directly adjacent to the adhesive layer.

[0151] Additional details regarding the various components, manufacturing asp...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
thicknessaaaaaaaaaa
Login to View More

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.

Description

[0001] Cross References to Related Applications [0002] This application is a continuation-in-part of International Application No. PCT / US2010 / 029352, filed March 31, 2010, which claims priority to U.S. Provisional Application No. 61 / 165,008, filed March 31, 2009, which is hereby incorporated in its entirety The contents are incorporated by reference. field of invention [0003] The present invention relates to heat sealable packages which are also resealable. Background of the invention [0004] Various resealable packages or containers are known. Typically, containers such as flexible bags or rigid walled enclosures are provided with openings for providing access to the interior of the container. A lid or cover is positioned over the opening and attached to the container, typically by heat sealing, to close and seal the interior of the container and its contents from the external environment. For bag-type containers, a portion of the flexible wall of the bag may act as...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): B65D77/20B32B1/00
CPCB65D77/2056B65D77/2096B65D2577/2091B32B7/12B32B27/08B65D77/20B32B1/00B32B7/06B32B27/32B32B27/36B32B2307/7244B32B2439/00B32B2439/40B32B2439/70B32B27/304B32B27/306B32B27/34B32B2250/24B32B2270/00B32B2307/31B32B2307/514B32B2307/5825B32B2307/75B32B2553/00Y10T428/31504B32B27/28B32B2435/02B65D77/2024
Inventor X·段Z·薛M·达夫纳
Owner AVERY DENNISON CORP