WO2017202788A1

WO2017202788A1 - Packaging

Info

Publication number: WO2017202788A1
Application number: PCT/EP2017/062305
Authority: WO
Inventors: Carolin Grimbacher; Johannes Remmele
Original assignee: Südpack Verpackungen Gmbh & Co Kg
Priority date: 2016-05-23
Filing date: 2017-05-22
Publication date: 2017-11-30
Also published as: US20190185204A1; DE102016109461A1

Abstract

Packaging made of a sealable packaging material having a front wall and a rear wall which are directly or indirectly joined to one another; a removal opening is provided which extends from and/or is located at an edge of the packaging.

Description

description

packaging

The invention relates to a packaging made of a sealable

Packaging material having a front wall and a rear wall, which are directly or indirectly connected to each other, wherein a removal opening is provided.

There are a variety of such packaging known, but all have the disadvantage that they are either not resealable or that the reclosability is realized with considerable technical effort.

There are known designs in which, in addition to a sealed seam, for example, a zipper, an adhesive label or even a hook and loop fastener is provided to produce a reclosability. There have already been packaging

in which, in addition to the sealed seam, a strip of pressure-sensitive adhesive was provided to make the package resealable.

The present invention is based on the object, a package

to propose, which is simple and inexpensive to produce and yet securely closed and resealable. This object is erfmdungs according solved in that the removal opening emanates from an edge of the package and / or is provided on an edge of the package.

This ensures easy openability.

It is also very advantageous according to the invention, if between the

Packaging material layers in the region of the removal opening an additional material is arranged, this additional material may be formed as a strip and / or occupy the full width of the removal opening.

The additional material ensures that the package is tightly closed, can be easily opened and yet resealable.

It has proved to be very advantageous if the additional material comprises a peelable material, which may be formed in a multi-layer composite of at least two outer layers and an inner layer, in which case the inner layer is the peelable material.

The peelable material is a secure closure and a lightweight

Openability guaranteed.

But it is also extremely advantageous if the additional material

reclosable material, which may be formed in a multi-layer composite of at least two outer layers and an inner layer, in which case the inner layer is the reclosable material.

This ensures a very good reclosability.

It has proved to be extremely advantageous when it comes to

resealable material is a PSA. A PSA can be attached by pressure back to the other side. Nevertheless, the additional material remains sealable and peelable.

Furthermore, it has proved to be very advantageous if the peelable and / or resealable material is designed such that when you first open a color change, a pattern, a structuring, text or the like is visible.

This makes it easy to see whether the packaging was already opened.

It is also very advantageous according to the invention if the additional material, i. a peelable and / or resealable material, which in one

multilayer composite is arranged, having a color change during sealing, wherein the color change can be formed as a surface or pattern.

This makes it very easy to check whether the seal has been carried out correctly.

Another very advantageous development of the invention is when the additional material has a reduced opening force, wherein a

Material weakening may be provided, through which the opening force is reduced.

This allows the packaging to be defined and opened easily. The most difficult part is usually the opening. Here helps the material weakening, which makes it easier to start the opening. The material weakening can be formed for example as a dilution, cut or perforation. However, the resealing force is retained. It is also extremely advantageous according to the invention if the additional material has an embossing, fillers, additives, lacquers or an otherwise tactile and / or optically three-dimensional design.

This makes it very easy for a user, the opening and

Reclosing area to recognize.

Another very advantageous embodiment is when the additional material is arranged between the packaging material layers and sealed with them.

This makes it possible to produce the packaging very easily and inexpensively. In addition, the new packaging can in principle be produced on existing packaging machines with existing operations.

According to the invention it is also very advantageous if a sealed seam is provided for connecting two layers of the packaging material and the additional material.

Thus, only a single sealed seam must be provided, on the one hand the

Packaging tightly closes and on the other hand still slightly apparent and

is resealable.

It is extremely advantageous if at least the outer edge of the sealed seam in the tear-open direction has a structuring, wherein the structuring beforehand

may be introduced or provided during sealing.

The structuring, whether it is introduced during sealing or is provided in advance, the Anreißverhalten is improved, thus ensuring lower opening forces. Another very advantageous embodiment of the invention is when at least the outer edge of the sealing seam in the tear-open direction is geometrically designed and thus forms a tear-open.

This also improves the scribing behavior. The geometric design can be used alternatively or in combination with the structuring.

According to the invention, it has also proven to be very advantageous if the sealing seam in the opening direction is preceded by sealing points or an at least interrupted further sealing seam.

Thus, the opening process is not only felt, but also audible. Of the

Opening process rattles from seal point to seal point.

Furthermore, it has proven to be very advantageous if the sealed seam or the sealing seams are provided with teeth, points or other protruding forms.

Especially at points, points or other prominent characteristics, the opening process can be particularly easy to start.

According to a further development of the invention, it is also extremely advantageous if the sealed seam at the beginning and / or end by a solid, not revealed

Sealing seam is limited.

This prevents unwanted tearing of the package at the edge of the opening. It is ensured that the packaging is not accidentally destroyed and the reclosability is ensured.

According to the invention, it is also very advantageous if a gripping surface or gripping tab is provided. This makes it easier to grasp the packaging when it is opened. Such a grip surface or grip tab can ideally be about an inch above the

Protruding seal.

It has proved to be very advantageous if the grip surface and / or the grip tab is structured, embossed and / or provided with a soft-touch effect, for example, a TPE, TPU or PA material can be used for the soft-touch effect, and / or prints for the soft-touch effect or

Additivizations can be used.

This makes it easier to grasp the gripping surface or the gripping bottle and thus achieves even better openability.

Another very advantageous embodiment of the invention is when the

Packaging is formed by a tubular bag, and either an end seam and / or the longitudinal seam is provided with the additional material.

As a result, a tubular bag can be made into a resealable packaging.

Another very advantageous embodiment of the invention is when the removal opening arranged in a wall of the package and through

Packaging material is covered, wherein the additional material is provided at least in sections between the covering material and the wall.

This can be arranged in a wall a dense, easily revealed and resealable removal opening.

A particularly advantageous embodiment of the invention is when the

Packaging is designed as MAP or vacuum packaging. Modified atmosphere or vacuum packagings have particular requirements for leak tightness, which have heretofore been met with great difficulty and have usually precluded reclosability or have required additional sealing seams or opening aids.

It is also very advantageous according to the invention if the packaging is designed as a deep-drawn or snuff-packed packaging.

Also, such packages can be upgraded with the present invention in a simple manner to resealable packaging.

Another very advantageous embodiment of the invention is when the packaging material is one or more layers.

Thus, the optimal material for the respective application can be selected and used.

It is extremely advantageous if the packaging material and / or the additional material contains in each case at least one layer of PE, PP, PET, ionomers, Surlyn, PLA, polyesters, their mixtures and / or blends.

This ensures excellent sealability.

Another very advantageous embodiment of the invention is when in the

Packaging material and / or a barrier layer is provided in the additional material, in which case the additional material may be formed at least four layers.

This can ensure that the packaging for certain substances, such as oxygen is poorly permeable. It has also proven to be very advantageous if the additional material is adhered to at least one wall of the packaging material.

This prevents that the additional material, especially in the form of a strip of material slips or deposits behind the additional material contents. In addition, the Öffenbarkit is further facilitated by a two-dimensional adhesion. It's easier to put force into the extra material. Furthermore, the sealing seam is easier to attach because the position of the additional material is fixed by the attachment. The material strip is easier to guide.

It has proved to be very advantageous if the additional material is adhered by pressing in the warm state or by light sealing.

This represents a very simple variant. For example, in or after a heating station, the additional material is pressed against a material web of the packaging material and thus adhered. Other types of attachment, such as easy sealing are conceivable. The attachment of the additional material can be done together with the seal, but also separately.

It is also very advantageous according to the invention, if a label as additional

Originality closure is provided.

This ensures absolute originality of the packaging when first opened.

Another very advantageous development of the invention is when the packaging material has a reduced thickness.

Due to the additional material in the opening area, the actual

Packaging material can be made considerably thinner. In the opening area, the Most mechanical loads that are absorbed by the additional material. As a result, material is saved considerably.

It is also extremely advantageous according to the invention if the additional material is constructed symmetrically or asymmetrically.

Thus, the structure of the additional material can be matched to the particular application and the packaging material. When opening the package, the composite of the additional material is torn apart. This separates between one of the carrier layers and the adhesive layer or in the adhesive layer, depending on how the structure designed, in particular depending on whether the structure is constructed symmetrically or asymmetrically.

Furthermore, it is very advantageous if the at least one of the respective outer layers of the additional material to the subsequent

Packaging material is specially adapted.

This can be used, for example, to produce particularly good adhesion conditions during sealing.

Another very advantageous embodiment of the invention is when the additional material is arranged longitudinally or transversely to the machine direction.

This allows all types of existing packaging machines to switch to the new reclosure.

In the following the invention is illustrated by means of an embodiment.

Showing: 1 is a schematic representation of a thermoformed packaging, which is equipped with a reclosing strip according to the invention,

Fig. 2 shows a tubular bag, with a inventive

Reclosed strip is equipped,

Fig. 3 is a stand-up pouch with an inventive

Reclosure strips,

Fig. 4 is a section through an inventive

Reclosure strips,

5 is a view of the contour of a sealed seam,

Fig. 6 is a view of a structured sealed seam, and

Fig. 7 is a view of three differently ausgestalteter sealing tools.

1 with a packaging with a top film 2 and a bottom film 3 is designated in FIG.

The lower film 3 is deep-drawn, whereas the upper film 2 is flat and

at least on three sides of the package with the lower film 3 is sealed.

On the fourth side of the packaging, a strip 4 of an additional material is inserted between the upper film 2 and the lower film 3. In the area of the strip 4, the fourth side of the package is sealed.

The strip 4 is at a distance from the outer edge of the upper film 2 and the

Lower film 3 is arranged so that the upper film 2 and / or the lower film 3 can be taken. A distance of about ten millimeters has proven to be very good proven, but can also be larger or smaller. In the grip area and a grip tab can be arranged.

It is especially good if the grip area or in the area of the grip tab

Surface structured, embossed and / or provided with a soft-touch effect. The tangibility is significantly improved.

For example, TPE, TPU or PA material can be used for the soft-touch effect. Also conceivable are prints or additives.

The use of partial coatings and / or printing for this is conceivable.

The strip 4 consists of a generally at least three-layered material having a first carrier layer 5, an adhesive layer 6 and a second carrier layer 7 following the adhesive layer 6.

Adhesive intermediates between the individual layers can be provided.

If now the package should be opened, the composite of the strip 4

torn apart. This separates between one of the carrier layers 5 and 7 and the adhesive layer 6 or in the adhesive layer 6, depending on how the structure designed, in particular depending on whether the structure is constructed symmetrically or asymmetrically.

The tightly sealed packaging is so open.

If the packaging should now be closed again, the strip 4 is compressed again. The adhesive layer 6 again adheres to the carrier layer 5 or 7.

The upper film 2 and the lower film 3 consist for example of PE, PP, PET, ionomers, Surlyn, PLA, at least on their mutually facing inner sides. Polyester, blends and / or blends. Conceivable here are LDPE, LLDPE, metallocene catalyzed variants, copolymers, for example with EVA, EMA, etc. In the case of PP, homo and Co-PP, as well as blends and copolymers are conceivable.

Also conceivable are PET, co-PET.

Barrier layers and other layers of other polymers are conceivable.

For example, layers of PA, EVOH or the like may be provided.

With regard to its carrier layers 5 and 7, the composite of the strip 4 must be sealable against the upper film 2 and the lower film 3.

The adhesive layer 6 is formed from a PSA, and this must also be sealable, that is, it must not be damaged during the sealing process of the strip so that the Öffenbarkeit and resealing suffers.

By using a strip 4, the expensive reclosing material is placed only where necessary. This may be, as shown in the present embodiment in a seam on one side of the package, but it is also conceivable that a plurality of packaging edges are equipped accordingly.

It also makes it possible to pasteurize the packaging. Any problems with migration of ingredients, especially from the adhesive layer 6, are avoided because the adhesive layer is limited to the strip 4 only.

The sealing seam in the strip 4 is contoured according to the present embodiment, so that a nose is arranged on the outer edge, at which the delamination of the strip 4 can be made easier.

Also, a targeted material weakening may be provided in the strip 4, which requires easier Öffenbarkeit. For this purpose, cuts, perforations or the like can be used. This allows wider seal seams, which makes the packaging particularly dense. It can be so also packaging with modified atmosphere or

Produce vacuum packaging that must be very dense.

It also makes it possible to create TK packaging for the first time, which can be easily reclosed.

Various possible contours of the sealing seams are shown in FIG. 7. Triangular contours are particularly preferred.

The sealing seam is provided in the opening direction with serrations, points or other protruding characteristics, whereby the opening is facilitated. It is particularly easy to initiate delamination at these points.

In addition, these contours may be preceded by dedicated seal points in the opening direction or an additional, interrupted seal line. These sealing points also make the opening process audible. The opening rattles from seal point to seal point.

On additional zipper, Velcro, adhesive labels or the like can be dispensed with. The use of additional labels to ensure the

Orginality is conceivable.

Another approach to improve the opening behavior according to the invention is the introduction of a structure in the sealed seam in the region of the strip 4. By such a structure a plurality of Anrißpunkten is created, which facilitate the opening. The structure may be provided in advance in the strip 4, in the lower film 3 and / or in the upper film 2. But it is also possible that the structure is introduced only during sealing with a suitably trained sealing tool in the seam.

The combination of a structure and a Konturiemng is not only conceivable, but particularly advantageous.

According to the further embodiments, other forms of packaging are conceivable, such as stand-up pouches, tubular bags (flow packs) or the like.

The strip 4 can, for example, before the actual sealing process on the

Upper film 2 and / or be attached to the lower film 3. This attachment can be done for example in a heating station, wherein the strip 4 is pressed against the respective film.

Pinning makes the strip easier to guide. Deviations that would lead to leakage of the sealed seam from the strip are avoided.

In addition, the handling is improved. By adhering the strip 4, this can be better delaminated, so that an easier Öffenbarkeit is guaranteed.

It is also conceivable in this context that the attachment takes place together with the creation of the sealed seam.

This means that the Widerverschluß invention can be made on known, widely used packaging machines with only minor conversions.

The strip 4 can be fed longitudinally or transversely to the machine direction. The sealed seam can be limited at its ends by other, solid, that is not delaminatable sealing seams. It is thus prevented that the packaging enters the packaging when opening. In addition, so the closure can be simplified. The opening is pulled smoothly at these two ends and only pressed again.

The arrangement of barrier layers against various substances in the lower film 2, the upper film 3 and / or in the strip 4 is conceivable.

A strip 4 with a barrier layer is usually constructed at least four layers. Additional adhesion promoters may be provided.

An exemplary layer structure would then be PE / HV / EVOH / PSA / PE.

On the other hand, the packaging is so dense, so that MAP and vacuum packaging can be better realized.

In addition, economically sterile packaging for medical applications, for example sterile packaging for the surgical area, can be created for the first time.

The peelable and / or reclosable material may be configured so that upon first opening, a color change, pattern, texturing, text, logo, or the like may become apparent.

It is also conceivable that a color change is introduced during sealing. This makes it possible to check whether the sealing process was successful.

The additional material may have an embossing, fillers, additives, paints or an otherwise tactile and / or optically three-dimensional design, whereby the apparent seal seam is not only visually recognizable but also tactile. Due to the strip 4, the remaining packaging material can be made thinner. The strip 4 absorbs the forces occurring during opening, so that the remaining packaging does not have to be so resistant. In this way packaging material can be saved.

The strip 4 may be symmetrical or asymmetrical. It is conceivable that the respective outer layers of the strip 4 to the subsequent

Packaging material are adapted to achieve a particularly good adhesion.

Claims

claims

1. Packaging of a sealable packaging material with a

Front wall and a rear wall, which are directly or indirectly connected to each other, wherein a removal opening is provided, characterized in that the removal opening emanates from an edge of the package and / or is provided on an edge of the package.

2. Packaging according to claim 1, characterized in that between the packaging material layers in the region of the removal opening, an additional material is arranged, this additional material may be formed as a strip and / or occupy the full width of the removal opening.

3. Packaging according to claim 2, characterized in that the additional material comprises a peelable material, which may be formed in a multi-layer composite of at least two outer layers and an inner layer, in which case the inner layer is the peelable material.

4. Packaging according to claim 2 or 3, characterized in that the

additional material comprises a reclosable material, which in a multilayer composite of at least two outer layers and a inner layer may be formed, in which case the inner layer is the resealable material.

5. Packaging according to claim 4, characterized in that it is the resealable material is a PSA.

6. Packaging according to one of claims 2 to 5, characterized in that the peelable and / or resealable material is designed such that when you first open a color change, a pattern, a structuring, text or the like is visible.

7. Packaging according to one of claims 2 to 6, characterized in that the additional material, i. a peelable and / or resealable material, which is arranged in a multi-layer composite, has a color change during sealing, wherein the color change can be formed as a surface or pattern.

8. Packaging according to one of claims 2 to 7, characterized in that the additional material has a reduced opening force, wherein a material weakening can be provided, through which the opening force is reduced.

9. Packaging according to one of claims 2 to 8, characterized in that the additional material has an embossing, fillers, additives, paints or an otherwise tactile and / or optically three-dimensional design.

10. Packaging according to one of claims 2 to 9, characterized in that the additional material is arranged between the packaging material layers and sealed with them.

11. Packaging according to one of the preceding claims, characterized in that a sealed seam is provided for connecting two layers of the packaging material and the additional material.

12. Packaging according to claim 1 1, characterized in that at least the outer edge of the sealing seam in the tear has a structuring, wherein the structuring may be introduced in advance or is provided during sealing.

13. Packaging according to claim 1 1 or 12, characterized in that

at least the outer edge of the sealing seam in the tear-open direction is designed geometrically and thus forms a tear-open aid.

14. Packaging according to claim 1 1, 12 or 13, characterized in that the

Sealing seam in opening direction sealing points or one at least

interrupted further sealed seam upstream.

15. Packaging according to one of claims 1 1 to 14, characterized in that the sealed seam or the sealing seams are provided with teeth, points or other protruding forms.

16. Verpachung according to any one of claims 1 1 to 15, characterized in that the sealed seam is limited at the beginning and / or at the end by a solid, non-obvious sealed seam.

17. Packaging according to one of the preceding claims, characterized

characterized in that a gripping surface or grip tab is provided.

18. Packaging according to claim 17, characterized in that the gripping surface and / or the gripping tab structured, embossed and / or with a soft touch Effect is provided, wherein for the soft-touch effect, a TPE, TPU or PA material can be used and / or wherein prints or additives can be used for the soft-touch effect.

19. Packaging according to one of the preceding claims, characterized

characterized in that the packaging is formed by a tubular bag, and either an end seam and / or the longitudinal seam is provided with the additional material.

20. Packaging according to one of the preceding claims, characterized

characterized in that the removal opening is arranged in a wall of the package and covered by packaging material, wherein between the covering material and the wall at least in sections the additional material is provided.

21. Packaging according to one of the preceding claims, characterized

in that the packaging is designed as a MAP or vacuum packaging.

22. Packaging according to one of the preceding claims, characterized

in that the packaging is designed as a deep-drawn or shrink-wrapped package.

23. Packaging according to one of the preceding claims, characterized

characterized in that the packaging material is single or multi-layered.

24. Packaging according to one of the preceding claims, characterized

in that the packaging material and / or the additional material contains in each case at least one layer of PE, PP, PET, ionomers, Surlyn, PLA, polyesters, their mixtures and / or blends.

25. Packaging according to one of the preceding claims, characterized in that a barrier layer is provided in the packaging material and / or in the additional material, in which case the additional material may be formed at least four layers.

26. Packaging according to one of the preceding claims, characterized

characterized in that the additional material is adhered to at least one wall of the packaging material.

27. Packaging according to claim 26, characterized in that the additional material is adhered by pressing in the warm state or by light sealing.

28. Packaging according to one of the preceding claims, characterized

characterized in that a label is provided as an additional tamper-evident closure.

29. Packaging according to one of the preceding claims, characterized

characterized in that the packaging material has a reduced thickness.

30. Packaging according to one of the preceding claims, characterized

characterized in that the additional material is constructed symmetrically or asymmetrically.

31. Packaging according to one of the preceding claims, characterized

characterized in that the at least one of the respective outer layers of the additional material is specially adapted to the subsequent packaging material. Packaging according to one of the preceding claims, characterized in that the additional material is arranged longitudinally or transversely to the machine direction.