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Flexible package having a zipper

A flexible packaging bag, packaging bag technology, applied in the directions of packaging, transportation and packaging, bags, etc., can solve problems such as interference with fastener operation, and achieve the effect of user convenience, enhanced quality and reliability

Inactive Publication Date: 2001-06-20
瑞科特公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Another drawback of the '683 patent is that during shipping, the fasteners are exposed to food, so that food can stick to the half fasteners, thereby interfering with the operation of the fasteners (for example, if the bag is turned upside down or for some other reason , during transport of the bag with the top of the bag down, food crumbs will collect in the recess of the fastener)

Method used

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  • Flexible package having a zipper
  • Flexible package having a zipper
  • Flexible package having a zipper

Examples

Experimental program
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Effect test

Embodiment Construction

[0040] Detailed description of the preferred embodiment

[0041] Figure 1 shows a package 10 according to a preferred embodiment of the present invention, said package having a top seal 20, a bottom seal 30, a reclosable zipper 40 near the top seal 20 (with Shown in dotted line) and a vertical back seal 50. Although the back seal 50 is shown as a flange extending outwardly from the middle of the wall 11 or 12 (i.e. formed by affixing an inner surface of the tube to an opposite inner surface of the tube), the back seal also May be flush with the packaging material (ie formed by affixing one inner surface of the tube to an opposite outer surface of the tube with overlapping sides). In addition, the back seal 50 may also be formed at another location. Additionally, other embodiments may include multiple longitudinal seals, or may have no longitudinal seals, eg if the tube is extruded.

[0042] As shown in FIG. 2 , the packaging bag 10 includes a first wall 11 and a second wall...

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PUM

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Abstract

A modified flexible package includes a front elastomeric wall and a rear elastomeric wall. The front wall and the rear wall are sealed together at a top seal at a top end of the side walls. The top seal is formed by applying heat and / or pressure for a given dwell period, and is preferably a de-laminating seal. A first zipper part is attached to an inside surface of the front wall and has a first engagement member facing the rear wall. A second zipper part is attached to an inside surface of the rear wall and has a second engagement member facing the front wall. The first and second engagement members are engaged together. Both the top seal and the zipper engagement members are "pinch-grip opened" under a pinch-grip pulling force applied to the front and rear walls below the zipper. The front and rear walls have a strength sufficient to resist tearing and deformation under the application of the pinch-grip pulling force during pinch-grip opening. The invention provides a re-closable package that can be opened in an easy one-step manner-"pinch grip opening"-without an additional step of cutting, tearing or the like.

Description

Background of the invention [0001] 1. field of invention [0002] The present invention relates to a flexible packaging bag having means for selectively reclosing the bag after initial opening. Specifically, the present invention provides a unique reclosable flexible package that is more convenient to the consumer and is particularly suitable for snack foods such as potato chips, corn chips and the like. [0003] 2. Description of prior art [0004] The present invention is an improvement over existing flexible packaging bags that are being used by the present assignee for containing, for example, Lays  Potato Chips, Tostitos  Flexible packaging bags for snack foods such as tortilla chips and similar foods. Pouches for similar food products typically have top and bottom seals formed by heat sealing and are opened by "pinch-grip" (Figure 1) on one side of the pouch and pull outward to break the end seals The packaging bag. However, these conventional bags do not have ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/25B65D75/58
CPCB65D33/2541B65D33/2533B65D75/5855Y10S206/81
Inventor 马克·A·朱尔戈范马丁·B·德尔
Owner 瑞科特公司