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Film bag

Inactive Publication Date: 2015-11-26
MONDI JACKSON
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The patent text describes an improved reclosable film bag that solves several problems, including difficulty in accessing and sealing bulk goods. The bag has side gussets, which increase its capacity and make it easier to stack. These gussets are formed by additional film panels that are welded onto the front and back panels. Overall, this patent aims to provide a more efficient and user-friendly reclosure film bag.

Problems solved by technology

It is one key disadvantage of the known film bag that it cannot be emptied easily.
Furthermore, the known bag forms a straight opening which is difficult to handle.
The edges of this straight opening have to be separated in a way that is cumbersome, especially with a bulging bag.
Welding on the sides is challenging during automated production.
Therefore the sealing properties of the prior art bag are inferior.
The sealing properties according to this second prior art are somewhat better, yet the same disadvantages concerning an opening defined by two parallel linear edges apply as well.

Method used

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Embodiment Construction

[0026]As seen in FIG. 1 a film bag 1 according to the invention has a front panel 2 with a front face 3 and a geometrically similar opposite back panel 22 with a back face and only shown partially in FIG. 2. The front panel 2 and back panel 22 are joined directly by parallel top bottom welds 4 and 5. Side gussets with fold lines 6 shown by a dashed line are folded between side edges of the panels 3 and 22 and secured thereto by side or longitudinal welds 7.

[0027]According to the invention, a rectangular inner cover patch 8 is connected to an inner face 9 of the front panel 3 by a continuous rectangular frame weld 10. The frame weld 10 is formed thermally.

[0028]A flap 11 is formed by a cut line 12 and two adjoining weakening lines 13 in the material of the front panel 2 surrounded by the frame weld 10. The full cut 12 defines a grip tab 14 of the flap 11 whereas the rest of the flap 11 is defined by the weakening lines 13 formed by rows of perforations. The ends of the weakening line...

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Abstract

A film bag has a front and back panel and an inner cover patch therebetween. A continuous frame weld secures the inner cover patch to the inner face of the front panel. A first cut or weakening line in the front panel within an area bounded by the frame weld defines all but one side of a flap hinged at the one side to the front panel. A reclosable fastener is between the front face of the patch and the inner face of front panel, and a direct attachment between the fastener and the hinge is between the front face of the flap to the inner face of the front panel. A second cut or weakening line is formed in the inner cover patch between the direct attachment to the flap and the recloseable fastener.

Description

FIELD OF THE INVENTION[0001]The present invention relates to film bag. More particularly this invention concerns such a bag with a handle.BACKGROUND OF THE INVENTION[0002]A typical film bag is formed by a front panel and a back panel each having an inner face and an outer face. The outer faces of the front panel and the back panel form the outer surface of the film bag. The film bag is preferably designed for dry bulk solids. It features a fastener that can be reclosed after an initial opening.[0003]A film bag with these characteristics is known from EP 0 843 636 (U.S. Pat. No. 5,823,933). The film bag has a pull tab arranged in the front panel. On the back side of the opening formed by the pull tab a reclosable fastener is attached in such a manner that a so called “arm” of the reclosable fastener spans across the opening. Thus the opening can be sealed by the reclosable fastener. In one particular embodiment a second arm of the reclosable fastener extends to the side of the reclos...

Claims

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Application Information

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IPC IPC(8): B65D27/20
CPCB65D27/20B65D75/5833B65D33/2508
Inventor GUM, MARK
Owner MONDI JACKSON
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