EP3589556A1

EP3589556A1 - Container packaging

Info

Publication number: EP3589556A1
Application number: EP18752735.3A
Authority: EP
Inventors: Johann Beil
Original assignee: Linhardt GmbH and Co KG
Current assignee: Linhardt GmbH and Co KG
Priority date: 2017-09-14
Filing date: 2018-08-07
Publication date: 2020-01-08
Anticipated expiration: 2038-08-07
Also published as: EP3589556B1; DE102017121333B4; ES2874880T3; HUE055297T2; WO2019052744A1; DE102017121333A1

Abstract

The invention relates to a container packaging (1) comprising a plastically deformable inner container (2), having an inner container jacket (3) and an inner container shoulder (4), for receiving a filling material, wherein the inner container shoulder (4) has a dispensing portion (5) having a dispensing opening (6). The container packaging additionally comprises a resiliently deformable outer container (7) having an outer container jacket (8), an outer container shoulder (9) and at least one valve (10), wherein the outer container shoulder (9) comprises an outer container nipple (11) having an outer container opening (12). The inner container (2) is arranged completely within the outer container (7), the dispensing portion (5) extends into the outer container nipple (11), and the dispensing portion (5) is connected to the outer container nipple (11) in a manner sealed with respect to the outer atmosphere. The valve (1) makes it possible to connect the space (13) arranged between the inner container (2) and the outer container (7) to the outer atmosphere. The inner container jacket (3) has a radial fold (14) and the inner container jacket (3) is formed in a self-overlapping manner in the region of the radial fold (14).

Description

Case packaging

Technical area

The invention relates to a container packaging.

State of the art

Container packaging is known from the prior art, which consist of a substantially dimensionally stable, but elastically deformable outer container and arranged in this outer container, plastically deformable inner container.

The inner container takes up the contents. The stiffness of the outer container is chosen so that after compression of the outer container, this deformed back to its original shape. The inner container consists of a plastically deformable material, so that it almost completely collapses under pressure and thus can be emptied well. At the same time he retains

Outer container its aesthetically pleasing shape.

DE 40 27 539 AI discloses a package, in particular a squeeze bottle, with a substantially dimensionally stable, but elastically deformable outer container, within which an easily deformable inner container is disposed. A closure closes the space between the inner and outer container. Among other things, the closure has a sealing lip, through which air in the

Interspace can flow as soon as the expressing process of the tube contents

is completed. This ensures that the outer container returns to its original shape.

The subject of JP H02-258 563 A is a squeezable container for the dispensing of liquids, in particular mayonnaise, comprising an inner container and an outer container. The outer container retains its original shape regardless of the removed amount of contents. In the wall of the

Outer container, a valve is introduced, through which air can penetrate into an air chamber arranged in the outer container. From US Pat. Nos. 4,760,937 and 4,760,937, US Pat. No. 2,777,612 A and DE 697 00 069 T2, further variants of tubes with a dimensionally stable outer container, an inner container containing the filling material and a container arranged in the outer container, are arranged To remove valve, which allows the ingress of air into the area between the outer and inner container.

The known packages have the disadvantage that a filling the

Packaging is only possible by the filling material is introduced through the removal opening in the inner container. This is not a satisfactory solution because of the

Filling the inner container to vent the displaced by the filling of the space between the air, the valve must be flowed against its intended opening direction. In addition, none of the known packaging can ensure complete or at least almost complete removal of the contents.

Despite the known from the prior art solutions, there is still a need for container packaging that can be filled in a simple manner and even after emptying have a consistent, aesthetically pleasing outer shape and can be almost completely emptied.

DESCRIPTION OF THE INVENTION The invention starts here. It should be made available a container packaging that can be filled in a simple manner, which even after draining a consistent, aesthetically sophisticated outer shape and can be almost completely emptied. This object is achieved by the container packaging according to independent claim 1. Further advantageous aspects, details and embodiments of the invention will become apparent from the dependent claims, the description and the drawings.

The present invention provides a container packaging having a plastically deformable, an inner container shell and an inner container shoulder having inner container for receiving a filling available. The inner container shoulder has a dispensing opening having an output portion. The

Container packaging also includes an elastically deformable one

An outer container shell, an outer container shoulder and at least one valve having outer container, wherein the outer container shoulder has a Außenbehälteröffnung having Außenbehälternippel. The inner container is completely inside - -

arranged the outer container, the output portion extends into the

Außenbehälternippel and the output section is connected to the Außenbehälternippel tightly against the outside atmosphere. The valve allows a connection between the inner container and the outer container space for

Outside atmosphere. The inner container casing has a radial fold and is formed overlapping itself in the region of the radial fold.

The inventively provided valve is preferably designed as a one-way valve in such a way that air can pass from the outside into the space between the inner container and outer container when after removal of contents and the reduction of, for example, manually applied pressure force of the outer container returns to its original shape and so a negative pressure in the space between

Inner container and outer container generated. When pressure is applied to the outer container, z. B. by squeezing the container packaging, the contents are directly compressed in the inner container and pressed through the discharge opening of the output portion of the inner container shoulder from the container package with full or little empty container packaging. If a larger amount of filling material has already been removed from the packaging, the air in the space between the inner and outer containers is compressed by pressure from outside, so that it, because it can not escape through the valve, compresses the inner container, as a result of which the contents is moved toward the discharge opening of the discharge portion of the inner container shoulder and exits therefrom.

In the course of emptying the container packaging so the plastically deformable inner container increasingly folds while reducing its volume, while the space between the inner and outer container is increasingly filled with air. The outer shape of the packaging therefore remains essentially the same regardless of the volume of the remaining remaining amount of filling material during the entire period of use.

Due to the dimensional stability of the outer container, the container packaging according to the invention retains its original, aesthetically sophisticated form over its entire service life, and because of its flexible, plastically deformable form

Inner container a complete removal of the contents safely.

The inner container casing according to the invention has a radial folding and is formed overlapping itself in the region of the radial folding. Due to the radial folding of the inner container has this at the resulting folding edge excess "

Wall material on. The excess material on the folding edge ensures that the inner container, starting with the first removal operation, can completely and arbitrarily change its shape following the pressure exerted from outside. Due to the excess wall material available for any wall deformation, the inner container can essentially assume any conceivable crumpled shape and in this way ensures that even smallest amounts of remaining contents can be removed substantially completely and the container packaging can be completely emptied. The excess material at the folded edge of the inner container and provided in the wall of the outer container valve also act together such that in a removal process, which ends with a reduction of the externally applied pressure, no negative pressure in the inner container. This ensures that no air and thus no oxygen oxidizing the filling material and no moisture which changes the filling material penetrates into the inner container.

According to a preferred embodiment, the area in which the

Inner container shell overlaps with itself due to its radial folding, an extension in the direction of a major axis of at least 10% of the total extent of the inner container shell in the direction of the main axis, wherein the main axis extends centrally through the output portion.

The major axis of the container package is generally defined as extending parallel to the wall of the dispensing portion of the inner container shoulder and centrally penetrating its dispensing opening. Usually, the output portion of container packaging is formed substantially as a hollow vertical circular cylinder. The main axis of the container packaging in this case represents the central axis of symmetry of this circular cylinder. Also for differently shaped output sections, the term "main axis" is to be understood such that the axis penetrates the dispensing section centrally and parallel to the wall of the dispensing section

Output section is arranged centered to the inner container shoulder, represents the

A radial fold in which the region in which the inner container casing overlaps with itself, an extent in the direction of a major axis of at least 10% of the total extent of the inner container shell in the direction of Having main axis, ensures that sufficient wall material is present, so that the inner container, starting from the first removal process, its shape following the external pressure can change completely and arbitrarily. Particularly preferably, the region in which the inner container casing overlaps itself due to its radial folding has an extent in the direction of the main axis of at least 20% of the total extent of the inner container casing in the direction of the main axis. This is additional excess wall material to

Available, why the inner container from the first removal process, its shape following the pressure acting from outside can change completely and arbitrarily.

The filling material is preferably a paste, a cream, a gel or a liquid.

It is preferably provided that the sealing against the outside atmosphere of the discharge section with the outer container nipple takes place by latching. Such a connection by latching can by all, known in the art

specific devices can be achieved. Thus, for example, a latching groove can be provided on the inside of the outer container nipple, in the corresponding, provided on the outside of the dispensing section part circular ring-shaped, bead-like

Intervene projections as notches. Through this combination of outer container and inner container, it is possible to introduce the inner container before filling with filling material in the outer container. The filling can therefore of the

Inner container shoulder opposite end of the inner container, which is still open at this time. Only after filling inner and outer containers are sealed in two, preferably one, steps, in particular welded.

Preferably, the inner container is closed at its end opposite the inner container shoulder by welding an edge region of the inner container jacket. Also preferably, the outer container is at its the outer container shoulder opposite end by welding an edge region of the

Outer container jacket closed.

According to a particularly preferred embodiment, the closing of outer container and inner container takes place at its outer container shoulder or the

Inner container shoulder opposite ends in only one step by forming a single, common weld. In cases where the materials of inner container and outer container are not compatible, so can not be welded together, the inner container in the direction of the main axis A compared to the outer container can be made somewhat shortened. The outer container is not welded in this case with the inner container, but in the beyond the inner container in the direction of the main axis A projecting portion with it - -

self-welded. Thus, despite material incompatibility to form a single weld inner container and outer container can be closed.

Preferably, the dispensing opening having the dispensing portion is formed integrally with the inner container shoulder. A one-piece design of the output section and inner container shoulder brings manufacturing advantages. The

Inner container shoulder is connected in this embodiment in a known manner, for example by welding to the inner container shell. The inner container shoulder can also be formed integrally with the inner container shell.

In the embodiments in which the inner container shoulder and inner container jacket are not produced in one piece, but the inner container shoulder is firmly connected to the inner container shell, inner container shoulder and

Inner container shell also be made of different materials. Are also output section and inner container shoulder not integrally formed, but are connected to each other only in the course of the manufacturing process, so basically output section and inner container shoulder can be made of different materials. Particularly preferred for the formation of the output section, the

Inner container shoulder and the inner container shell plastic, in particular

Plastic laminate, used. On the one hand, said materials have favorable properties during the production process and, on the other hand, advantageously provide the plastic deformability of the inner container shell desired for dispensing the contents. According to a preferred embodiment, the entire inner container made of plastic, in particular of a plastic laminate.

Particularly preferably, the inner container is provided on its inner side with a barrier layer, wherein the barrier layer is preferably formed of aluminum or SiOx. A barrier layer prevents the penetration of oxygen and

Steam.

Also preferably, the Außenbehälternippel having the outer container opening is formed integrally with the outer container shoulder. A one-piece design of Außenbehälternippel and outer container shoulder brings manufacturing advantages. The outer container shoulder is connected in this embodiment in a known manner, for example by welding to the outer container shell.

Preferably, the container packaging is equipped with a closure element, wherein the closure element is preferably designed as a molded part made of plastic. The Production of closure elements as molded plastic parts is established and therefore easy and inexpensive to perform.

In a manner known to those skilled in the art, the outer container nipple is usually provided with an external thread. The closure element has in this case with the

External thread of the outer container nipple corresponding internal thread, whereby a simple closure of the container packaging by screwing the

Closure element is made possible with the outer container nipple. The inner container is preferably provided on its inside with a coating. These may be the oxygen and water-absorbing coatings known per se. This coating can also be provided in addition to the already mentioned barrier layer. Also preferred are embodiments according to which the outer container made of plastic, in particular of a plastic monomaterial or a

Plastic laminate, consists. Particularly preferred is polyethylene and in particular HDPE. The materials mentioned on the one hand have favorable properties

Manufacturing process and provide on the other hand to obtain the dimensional stability desired elastic deformability of the outer container wall in an advantageous manner. The use of a plastic monomaterial has the particular advantage that the outer container can be extruded in a tube.

According to a particularly preferred embodiment of the present invention, the outer container is an outer tube and the inner container is an inner tube and thus the entire container packaging is a tube.

The present invention also includes a method for producing a

A container package as described above, the method comprising the steps of:

a) production of a plastically deformable, an inner container shell and an inner container shoulder having inner container, wherein the inner container shoulder has a discharge opening having an output portion, and

Production of an elastically deformable, an outer container shell, a

Outer container shoulder and at least one valve having outer container, wherein the outer container shoulder having an outer container opening

Having outer container nipple,

b) radial folding of the inner container casing, wherein the inner container casing overlaps itself in the region of the radial folding, c) introducing the inner container into the outer container, so that the inner container is completely disposed within the outer container and the

Extending portion of the inner container shoulder extends into the Außenbehälternippel, d) producing a tight against the outside atmosphere of the compound

Output section with the outer container nipple,

e) introducing a filling material into the inner container,

f) closing the inner container in one of the inner container shoulder

opposite edge region of the inner container shell, and

Closing the outer container in one of the outer container shoulder

opposite edge region of the outer container shell.

The radial folding of the inner container shell can of course be done before or after the production of the elastically deformable outer container. It only has to be ensured that the folding of the inner container jacket is carried out before the introduction of the inner container into the outer container.

Preferably, in addition to the sealing against the outside atmosphere connection of the discharge portion with the Außenbehälternippel the inner container with the

Outer container connected, wherein the connection is preferably carried out by latching. By such a combination of outer container and inner container, it is possible to introduce the inner container before filling with contents in the outer container. The filling can then take place from the inner container shoulder opposite end of the inner container, which is still open at this time. Only after filling the inner and outer containers are closed.

The closing of the inner container is preferably carried out by welding of the inner container shoulder shoulder opposite edge region of the inner container shell. Likewise preferably, the closure of the outer container takes place by welding the edge region of the outer container shoulder opposite

External container cladding. Welding of container walls is a long-established method that ensures a secure, permanent closure and that can be carried out inexpensively at the same time.

Particularly preferably, the outer container and the inner container are opposite in their outer container shoulder or the inner container shoulder

Edge areas closed by forming a single, common weld. By simultaneously sealing the outer container and inner container to form a common weld, a step can be saved, resulting in the corresponding time and cost savings. - -

According to a further preferred embodiment, the radial folding of the inner container casing takes place in such a way that the region in which the inner container casing overlaps itself due to its radial folding, extends in the direction of a main axis A of at least 10% of the total extent of the inner container casing in the direction of the main axis A. wherein the major axis A extends centrally through the dispensing section. Particularly preferably, the radial folding of the

Inner container shell such that the region in which the inner container shell overlaps with itself due to its radial folding, an extension in the direction of the major axis A of at least 20% of the total extent of the inner container shell in the direction of the major axis A. By means of a radial folding in which the region in which the inner container casing overlaps itself has an extent in the direction of a major axis of at least 10%, particularly preferably of at least 20%, of the total extent of the inner container casing in the direction of the main axis, it is ensured that that sufficient wall material is present, so that the

Inner container beginning with the first removal process, its shape following the pressure acting from outside completely and arbitrarily.

Further developments, advantages and applications of the invention will become apparent from the following description of exemplary embodiments and from the figures.

MODES FOR CARRYING OUT THE INVENTION The invention will be explained in more detail below on the basis of an exemplary embodiment in conjunction with the drawing. 1 shows a schematic representation of a vertical section through a container packaging according to the invention.

The container packaging 1 comprises a plastically deformable inner container 2 for receiving a filling material. The inner container 2 has an inner container shell 3 and an inner container shoulder 4, wherein the inner container shoulder 4 a

Having output opening 6 having output section 5. The inner container shell 3 consists of a plastic laminate, which can easily be permanently plastically deformed. The inner container shoulder 4 and the output portion 5 are integrally formed of a plastic.

The container package 1 also comprises an elastically deformable outer container 7, which is made of a plastic material. The outer container 7 comprises an outer container shell 8, an outer container shoulder 9 and at least one valve 10. To the - 1 -

Außenbehälterschulter 9 is formed a Außenbehälternippel 11, which a

Outer container opening 12 has.

As can be seen from Figure 1, the inner container 2 is completely within the

Outer container 7 is arranged. The discharge portion 5 of the inner container shoulder 4 extends into the outer container nipple 11 and is sealed to the outer container nipple 11 against the outer atmosphere.

The valve 10 penetrates the outer container shell 8 and allows a connection between the inner container 2 and the outer container 7 located space 13 to the outside atmosphere. The valve 10 is designed as a one-way valve in such a way that air can pass from the outside into the space between the inner container 2 and outer container 7, if after removal of contents and the reduction of the manually applied pressure force of the outer container 7 assumes its original shape and so generates a negative pressure in the space 13 between the inner container 2 and outer container 7.

The inner container shell 3 has an overall extent L in the direction of a major axis A of 20 cm. The inner container shell 3 has a radial fold 14 and is formed in the region of this radial fold 14 with itself overlapping. The area in which the inner container shell 3 overlaps with itself, has an extension W in the direction of a major axis of 2 cm, that is 10% of the total extent of

Inner container shell 3 in the direction of the main axis A. The existing in the radial folding 14 additional, beyond the actually required for receiving the intended filling material inner container casing material allows a particularly efficient, easy, permanent, plastic deformation of the

Inner container when removing contents. When applying an external pressure by manually squeezing the container packaging, there is a deformation of the inner container, which is maintained even after completion of the pressure application.

Until filling the container packaging 1 with the contents of the is

Inner container shoulder 4 opposite end of the inner container 2 open and the inner container 2 has a circular cylindrical shape. After filling the container packaging 1, the inner container shoulder 4 opposite end of the inner container 2 is closed in the usual manner, for example by welding. In the embodiment shown, the outer container 7 and the inner container 2 are closed by a common weld. LIST OF REFERENCE NUMBERS

1 container packaging

2 inner containers

3 inner container casing

4 inner container shoulder

5 output section

6 discharge opening

7 outer container

8 outer container jacket

9 outer container shoulder

10 valve

11 outer container nipple

12 outer container opening

13 space between the inner container and the outer container

14 radial folding

15 external thread

A main axis

L Overall extent of the inner container casing in the direction of the main axis A

W Expansion of the area where the inner tank shell overlaps itself

Claims

claims

Container container (1) having

a plastically deformable, an inner container shell (3) and a

Inner container shoulder (4) having inner container (2) for receiving a filling material, wherein the inner container shoulder (4) has a discharge opening (6) having an output portion (5),

an elastically deformable, an outer container shell (8), a

Outer container shoulder (9) and at least one valve (10) having

Outer container (7), wherein the outer container shoulder (9) has a

Outer container nipple (11) having outer container opening (12), wherein the inner container (2) is arranged completely inside the outer container (7), the discharge section (5) extends into the outer container nipple (11) and the discharge section (5) with the outer container nipple (11) 11) tight against the

Outside atmosphere is connected,

wherein the valve (10) allows a connection between the inner container (2) and the outer container (7) located space (13) to the outside atmosphere, wherein the inner container shell (3) has a radial fold (14) and the inner container shell (3) in Area of the radial fold (14) is formed with itself overlapping.

Container packaging (1) according to claim 1, characterized in that the sealing against the outside atmosphere of the discharge section (5) with the

Außenbehälternippel (11) takes place by latching.

Container packaging (1) according to one of claims 1 or 2, characterized

in that the inner container (2) consists of plastic, in particular of a plastic laminate, wherein the inner container (2) is preferably provided on its inside with a barrier layer, in particular with a barrier layer of aluminum or SiOx.

Container packaging (1) according to one of claims 1 to 3, characterized in that the outer container (7) made of plastic, in particular of a plastic monomaterial or a plastic laminate, consists.

Container packaging (1) according to one of claims 1 to 4, characterized in that the inner container (2) at its inner container shoulder (4)

opposite end by welding a peripheral region of the

Inner container shell (3) is closed. Container packaging (1) according to any one of claims 1 to 5, characterized in that the outer container (7) at its outer container shoulder (9)

opposite end by welding a peripheral region of the

Outer container shell (8) is closed.

Container packaging (1) according to one of claims 5 or 6, characterized

characterized in that the outer container (7) at its outer container shoulder (9) opposite end and the inner container (2) at its the

Inner container shoulder (4) opposite end are closed by forming a single, common weld.

Container packaging (1) according to one of claims 1 to 7, characterized in that the region in which the inner container casing (3) overlaps itself due to its radial folding (14) extends in the direction of a

Main axis A of at least 10% of the total extent of the inner container shell (3) in the direction of the major axis A, wherein the main axis A extends centrally through the output portion (5).

Container packaging (1) according to claim 8, characterized in that the region in which the inner container casing (3) overlaps itself due to its radial folding (14) has an extent in the direction of the main axis A of at least 20% of the total extent of the inner container casing ( 3) in the direction of the major axis A.

Method for producing a container packaging (1) according to claims 1 to 9, comprising the steps:

a) Production of a plastically deformable, an inner container shell (3) and an inner container shoulder (4) having inner container (2), wherein the inner container shoulder (4) having a discharge opening (6)

Output section (5), and

Production of an elastically deformable, an outer container shell (8), an outer container shoulder (9) and at least one valve (10) having

Outer container (7), wherein the outer container shoulder (9) has a a

B) radial folding of the inner container jacket (3), the inner container jacket (3) overlapping itself in the region of the radial fold (14),

c) introducing the inner container (2) in the outer container (7), so that the

Inner container (2) is disposed completely within the outer container (7) and the discharge portion (5) of the inner container shoulder (4) extends into the outer container nipple (11),

d) producing a dense against the outside atmosphere compound of

Output portion (5) with the outer container nipple (11),

e) introducing a filling material into the inner container (2),

f) closing the inner container (2) in one of the inner container shoulder (4) opposite edge region of the inner container shell (3), and

Closing the outer container (7) in one of the outer container shoulder (9) opposite edge region of the outer container shell (8).

A method of manufacturing a container package (1) according to claim 10, characterized in that in addition to the external atmosphere tight connection of the discharge section (5) with the outer container nipple (11) the inner container (2) is connected to the outer container (7) the connection preferably takes place by latching.

A method for producing a container packaging (1) according to any one of claims 10 or 11, characterized in that the closing of the inner container (2) by welding of the inner container shoulder (4) opposite edge region of the inner container shell (3).

A method for producing a container packaging (1) according to any one of claims 10 to 12, characterized in that the closing of the outer container (7) by welding the outer container shoulder (9) opposite edge region of the outer container shell (8).

Method for producing a container packaging (1) according to one of claims 12 or 13, characterized in that the outer container (7) in its outer container shoulder (9) opposite edge region and the inner container (2) in its inner container shoulder (4) opposite edge region Training a single, common weld to be closed.

15. A method for producing a container packaging (1) according to any one of claims 10 to 14, characterized in that the radial folding of the

Inner container shell (3) takes place such that the area in which the

Inner container shell (3) due to its radial fold (14) overlaps with itself, having an expansion in the direction of a major axis A of at least 10% of the total extent of the inner container shell (3) in the direction of the main axis A, wherein the main axis A is centrally through the output portion (5) extends. Method for producing a container packaging (1) according to claim 15, characterized in that the radial folding of the inner container jacket (3) takes place in such a way that the region in which the inner container jacket (3) overlaps itself due to its radial folding (14), has an extent in the direction of the main axis A of at least 20% of the total extent of the inner container shell (3) in the direction of the main axis A.