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Rupturable opening for sealed container

A container and sealing layer technology, applied in the field of rupturable openings and their formation, can solve the problems of lack of providing a weakened area, broken straws, etc.

Active Publication Date: 2007-07-11
EVERGREEN PACKAGING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

It has now been found that known prior art techniques including known embossing patterns lack the ability to consistently provide weakened areas in the walls of liquid containers using paperboard laminates, wherein the weakened areas play a role in retaining the contents in the container and / or protecting the container. Inclusions remain intact to the extent required to protect against undesired changes to the contents of the container and can still be easily ruptured using common drinking straws

Method used

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  • Rupturable opening for sealed container
  • Rupturable opening for sealed container
  • Rupturable opening for sealed container

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Embodiment Construction

[0034] The invention relates in particular to containers for containing liquid food, which are intended to be entered and sucked from the interior of the container via the usual straws which also serve to rupture a relatively small area of ​​weakness in the wall (usually the top) of the container and thus The straw is allowed to enter the interior of the container as is well known in the art and need not be described in detail.

[0035] Figures 3 and 4 show that part 20 of the top wall 22 of the container and the end 24 of the straw 26 enter the interior of the container via a weakened area 38 in the container wall which is ruptured with the end of the straw.

[0036]In one embodiment of the present invention, a paperboard laminate 10 (FIGS. 13 and 14) includes a paperboard substrate 12 having a thickness of, for example, between about 15 and about 17 mils. In a typical paperboard laminate used in the formation of containers for liquids, at least one and usually two opposing s...

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PUM

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Abstract

A container formed from a paperboard laminate and including a rupturable opening for gaining access to the contents of the container, the opening being defined by an embossment pattern in a wall of the container. The embossment defines a weakened area which includes the layers of the laminate, but without destruction or deterioration of selected ones of the barrier / sealing layers of the laminate. A method is disclosed.

Description

technical field [0001] The present invention relates to a rupturable opening for accessing the contents of a closed (sealed) container and a method of forming the same. Background technique [0002] Liquid foods are generally served to consumers contained in closed (sealed) containers constructed of laminated sheets comprising a paperboard base having at least one or more outer barrier layers. This barrier layer separates the paperboard from moisture originating from inside or outside the container. Sometimes, barrier layer(s) further impede or reduce gas transfer through the vessel wall. The outer layer may sometimes include a heat seal layer, which may also serve a barrier function. [0003] Access to the contents of the container is usually provided by inserting a common drinking straw into an opening defined in the wall at the top of the container. Such regions have previously taken many forms, such as multiple slits emanating from a central point and extending partia...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D77/28B65D5/06
CPCB65D5/067B65D77/28B65D2231/02B31B50/84B31B50/88
Inventor 斯蒂芬·J.·休伊特卡拉·玛丽·古斯塔夫森曼弗雷德·弗里德里希·莫勒罗恩·杜安·诺伍德亚历山大·克雷格·布什曼
Owner EVERGREEN PACKAGING