JP2004510654A - package - Google Patents

Abstract

The package is formed of a cardboard blank with fold lines, a wall panel (1), a bottom flap (2) forming the bottom of the package, ie short side flaps which are folded and heat sealed together to form the top of the package. (3A) and a long side flap (3B). One of the long side flaps has a sealing tab (4) at the free end, the sealing tab (4) is coated with a heat seal adhesive and sealed against the opposite long side flap (3B). Has been stopped. The sealing tab (4) is formed with a width smaller than the width of the package that can cover the top of the package to allow reclosing.

Description

[0001]
[Technical field to which the invention belongs]
The present invention relates to a package, wherein the package has a fold line and has a wall panel, a bottom flap forming the bottom of the package, and a top flap, i.e. two long side flaps which extend unbroken over the width of the package. And a cardboard blank having two short side flaps, said upper flap being folded and heat sealed together to form a gable breakthrough or parallelepiped type package which forms the top of the package.
[0002]
[Conventional technology]
Dried foods, as well as cereals, meals, and automills, are often packed in gable-top or parallelepiped cardboard boxes or packages. For different reasons, it has become customary to form cardboard with waste (waste) fibers and pack the food in, for example, a plastic inner bag. The plastic keeps the food in good condition until the inner bag is opened and prevents the food from contacting the waste fiber cardboard.
[0003]
Although virgin fiber-coated cardboard materials are now available, they are lighter than conventional materials, and as such, are completely tight to dry materials and provide any taste or odor to the packed product. Also do not add. Thus, if the package is tightly sealed, the dried food can be directly packed in the package without the inner bag.
[0004]
[invention]
A problem with tight seal packages is that they are difficult to open and reclose after use.
[0005]
This problem is solved by the present invention. In the present invention, one of the long side flaps has a sealing tab at the free end, said sealing tab being provided with a heat sealing adhesive for sealing the opposite long side flap or the opposite wall panel. And has a width less than the width of the package that can obscure the top of the package for reclosing.
[0006]
In order to allow easy access to this sealing tab, according to the invention, said sealing tab has a lift tab at its free end.
[0007]
The design according to the invention makes it possible to use a sealing tab inserted between the long side flap and the short side flap as closing means. This keeps moisture and pests out after the initial opening of the package.
[0008]
[Detailed description of preferred embodiment]
The package according to the present invention is typically formed of a coated cardboard and is preferably manufactured from virgin fibers which allow the food to be contained in the package without the need for an inner bag or the like. You. The cardboard material may include different layers, for example, a barrier layer of EVOH. The coating may be, for example, polyethylene. The cardboard material is preferably completely tight to dry matter.
[0009]
First, the cardboard blank is cut, fold lines are formed, and conventionally sealed along side edges to form a semi-finished package open at both ends, as shown in FIG. As can be seen, this package has a wall panel 1, a bottom flap 2, and a top flap 3 (flaps 3A and 3B).
[0010]
Next, the bottom flap 2 is folded in a conventional manner and, for example, heat-sealed to form a tight bottom, as shown at the bottom of FIG.
[0011]
The package is ready to be filled with dry food such as cereal, meal or automill.
[0012]
Thereafter, the top of the package is sealed. In a conventional manner, the two short side flaps 3A are folded along the fold line, and the two long side flaps 3B are brought into contact with each other and heat-sealed to form a tight top (top).
[0013]
One of the long side flaps 3B, one on the rear side in FIG. 1, is integral but is preferably separated by a fold line into a sealing tab 4 and a lifting tab 5. A hot melt adhesive is applied to the sealing tab 4, after which the two sealing tabs 4 and the lifting tab 5 are folded over the formed top of the package, and the sealing tab 4 is on the opposite long side flap 3B. Sealed by heat to form a so-called gable-top package, as shown in FIG.
[0014]
For the initial opening of the package, the sealing tab 4 may be lifted by the lifting tab 5, so that the sealing with the hot melt adhesive is broken and the long side flap 3B allows the removal of the contents of the package. May be pulled apart to the extent necessary for
[0015]
An important feature of the design of the present invention is that the package can be reclosed each time it is opened by depressing the sealing tab 4 and the lifting tab 5 between the long side flap 3B on both sides and the folded short side flap 3A. .
[0016]
FIGS. 3 and 4 show a parallelepiped package instead of the gable-top package of FIGS. Similarly, this package has a wall panel 11, a bottom flap 12 and a top flap 13. From the step shown in FIG. 3, the bottom flap 12 is folded in a conventional manner and, for example, heat-sealed to form a tight bottom, as shown at the bottom of FIG.
[0017]
After filling, the top of the package is sealed. In a conventional manner, the two short side flaps 13A are folded along a fold line and the upper part of the long side flap 13B (here separated from the rest of the long side flap 13B by the fold line) is brought into contact with each other; Heat sealed to form a tight top.
[0018]
A hot melt adhesive is applied to the sealing tab 14 formed on the rear long side flap 13B. The top is folded down and the sealing tab 14 is heat sealed to the top of the front wall panel 11, thereby forming a parallelepiped package, as shown in FIG.
[0019]
The package can be opened by raising the lift tub 15 and subsequently reclosed after opening, as described with reference to FIGS.
[Brief description of the drawings]
FIG.
1 is a perspective view of a first form of a package according to the present invention, shown in a semi-finished state.
FIG. 2
1 is a perspective view of a first embodiment of a package according to the present invention, shown in a completed state.
FIG. 3
FIG. 4 is a perspective view of a second form of the package according to the invention, shown in a semi-finished state.
FIG. 4
FIG. 4 is a perspective view of a second form of the package according to the present invention, shown in a completed state.

Claims (2)

A wall panel (1,11) having fold lines and a lower flap (2,12) forming the bottom of the package, and two long side flaps (3B, 13B) extending unbroken over the width of the package And a cardboard blank having two short side flaps (3A, 13A), the upper flap being folded and heat sealed together to form the top of the package. In a package that may be top or parallelepiped,
One of the long side flaps (3B, 13B) has a sealing tab (4, 14) at the free end, the sealing tab (4, 14) being the opposite long side flap (3) or the opposite wall. A package having a heat seal adhesive for sealing the panel (11) and having a width smaller than the width of the package that can cover the top of the package for reclosing. The package of claim 1, wherein the sealing tab (4, 14) has a lift tab (5, 15) at a free end.