Vented package

Inactive Publication Date: 2011-05-05
SONOCO DEV INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

A base panel may also be provided, connected to a portion of the first and second pane

Problems solved by technology

However, sealed containers typically experience increases in internal pressure during heating of many food products.
Without means for allowing the escape of increased pressure, the package may be subject t

Method used

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Examples

Experimental program
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Embodiment Construction

Referring to the figures, like numerals are used to indicate like elements throughout. FIGS. 1-6 show an embodiment of a flexible package generally identified by reference numeral 10. The package 10 is shown as having a generally rectangular construction, but may have any desired shape. As illustrated, the package 10 includes a first panel 12 having a removable tab 14, which covers formed vents 16.

Referring to FIG. 1, the package 10 is shown in the form of a stand up pouch having a first panel 12, an opposing second panel 18 and a bottom gusset panel 20. The first panel 12 is secured to the second panel 18 by a heat seal 22 extending along their top edges and along the upper side portions of the package 10. The gusset panel 20 is also preferably heat-sealed to the first panel 12 and second panel 18 adjacent their lower portions and along their bottom edges, providing a base for the package 10.

As shown in FIGS. 2 and 3, the first and second panels 12, 18 are constructed of a multi-la...

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Abstract

A package is provided having at least one panel formed from a laminate having an inner sealing layer, an outer web layer and an adhesive layer provided between the inner and outer layers. The outer web layer includes a removable tab portion defined by a first line of weakness in the layer. The inner sealing layer contains at least one removable plug portion defined by a second line of weakness. The first line of weakness is in registration with and surrounds the second line of weakness. The adhesive layer includes a permanent adhesive provided directly between at the tab and the plug portion and a non-permanent adhesive within the remainder of the area defined by the first line of weakness. Removal of the tab from the outer web causes separation of the plug from the inner layer, opening a vent within the package.

Description

TECHNICAL FIELDThe present disclosure relates to a flexible packaging formed from a material laminate. More specifically, the present disclosure relates to providing a sealed package with a removable vent feature.BACKGROUNDFlexible packaging, such as plastic bags or pouches, for containment and storage of food products is known. In some instances, it is desirable to store and cook food products in the same packaging. One efficient way of cooking food within a flexible package is by a microwave oven. However, sealed containers typically experience increases in internal pressure during heating of many food products. The increase in pressure within the package results from the conversion of liquids to a gaseous state when heated. Without means for allowing the escape of increased pressure, the package may be subject to failure; causing a need for clean-up or potentially harmful effects on the oven or its environment. As a result, various types of flexible packaging for food products in...

Claims

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Application Information

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IPC IPC(8): B65D33/01B65D33/16
CPCB65D2205/025B65D75/008
Inventor BOSMAN, BRENT
Owner SONOCO DEV INC
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