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Packaging for free-flowing products, consisting of a heat-sealed bag

a tubular bag and free-flowing technology, which is applied in the direction of flexible container closures, liquid handling, and closures using stoppers, etc., can solve the problems of uncontrollable rips, inability to open the packaging without utensils, and inherent danger of unwanted openings, so as to prevent damage to the sealing weld, improve transport and storage, and reduce the risk of slipping

Inactive Publication Date: 2006-11-16
HENKEL KGAA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides a package design that allows for controlled opening without the need for utensils. The package has a sealing weld only between the side folds and the neighboring broad-face panel, preventing uncontrolled ripping. The narrow-face panels in the region of the side folds are coated with an anti-adhesion coating to prevent sticking. The inner side of the tubular bag is designed to have a peelable surface for easy opening. The sealing weld is offset from the edge of the bag end to improve transport and storage strength. The end of the bag is turned back and attached to the external face to further prevent damage to the sealing weld.

Problems solved by technology

As a result, it is practically impossible to open the packaging without a utensil.
These rips proceed uncontrollably strongly in the direction of the bottom of the bag.
However, such a line of weakness brings the inherent danger of an unwanted opening, for example during transport or product handling.
However, this packaging bag does not have any folded sides.

Method used

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  • Packaging for free-flowing products, consisting of a heat-sealed bag
  • Packaging for free-flowing products, consisting of a heat-sealed bag
  • Packaging for free-flowing products, consisting of a heat-sealed bag

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Embodiment Construction

[0023] A packaging for free-flowing products, for example powdered detergent, is shown in FIG. 1 denoted in general by 1. This packaging consists of a tubular bag 2 that is closed at the bottom with a bottom seal (not shown). The bag may be formed with front, back and side panels which are tubulated by at least one lengthwise seam (not shown) extending substantially parallel to the longitudinal axis of the bag. At the top, the tubular bag 2 is first opened and is filled with powdered product only up to the point that, when full, a bag end 3 remains flat. This bag top end 3 is formed from two broad-face panels 4 and 5 lying flat against one another and two narrow-face panels, one of which is shown at 9, that are folded inwards at both edges of said panels and lie between the broad-face panels 4, and 5, wherein a side fold line 6 joins one broad-face panel 4 with the panel 9, and the other side fold line 7 joins the other broad-face panel 5 with the panel 9. The panel 9 is folded back...

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PUM

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Abstract

Packaging for free-flowing products consisting of a tubular bag composed of a flexible material. One end, which lies flat when the bag is filled, is formed by two broad-face panels lying flat against one another and narrow-face panels that are folded back by center fold lines between the opposite edges of the narrow-face panels, and positioned between the marginal areas of the broad-face panels. A side fold connects each narrow-face panel to one broad-face panel and another side fold connects the narrow-face panel to the other broad-face panel. The fold lines extend substantially parallel to the longitudinal axis of the bag. The end of the bag is closed by a sealing weld that extends in a transverse direction to the longitudinal axis of the bag. The sealing weld is controlled to be weaker than the other welds which connect the panels to form the panels into a bag for containing the product. Preferably the outer surfaces of the panels are treated to prevent their being sealed together when folded back

Description

CROSS REFERENCE TO RELATED APPLICATIONS [0001] This application is a '365(c) continuation of PCT / EP2004 / 012281 filed Oct. 29, 2004, which claims priority to DE Application 103 52 019.8, filed Nov. 7, 2003, each of the foregoing applications is incorporated herein by reference.FIELD OF THE INVENTION [0002] The invention relates to a packaging for free-flowing products consisting of a tubular bag composed of a flexible material, and said packaging, when full, has an end that lies flat, formed by two broad-face panels lying flat against one another and narrow-face panels that are folded inwards at both edges of said panels and lie between the latter, wherein a side fold adjoins one broad-face panel and another side fold adjoins the other broad-face panel, the end of the bag being closed by means of a sealing weld that extends substantially in a transverse direction to the longitudinal axis of the bag. BACKGROUND OF THE INVENTION [0003] These types of packaging bags are used as e.g. a r...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): B65D33/16B65D33/00B65D33/22B65D75/58
CPCB65D75/5855
Inventor OBERDORF, DIRKBARTHEL, WOLFGANGFILECCIA, SALVATOREWEREMBECK, RAINER
Owner HENKEL KGAA
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