EP2194002A1 - Container - Google Patents

Abstract

The container has a container lower part (11) for receiving the products, and a container upper part is formed as container cover. The container lower part has a closed edge (15) running free around its container opening. A collar element (16) has a rotary protrusion surface (161) aligned with its free end (160) of a cover element.

Description

The invention relates to a container for solid, pasty, as well as flowable and scoopable products, in particular for food products, comprising a container base for receiving the product and a container lid designed as a container top, wherein the container base has a closed, running around its container opening edge that the Container upper part consists of a running around the container opening, this collar-like comprehensive collar element, and consists of a substantially planar lid member, and is releasably secured to the edge of the container base.

A container of this type is known ( EP-A-1 693 309 ).

In general, such containers are usually made of plastic material and are usually produced by known injection molding techniques. Containers of this or similar type are available in a wide variety of sizes Trade and are used in the most diverse shapes for all sorts of products that are hygienic or germ-free to pack. Products that are offered for example in such containers as packaging units in grocery stores, for example, dairy products of all kinds, meat and sausage products, but also vegetables and fruit products and finished products in chilled and uncooled form.

Since the generic containers are mass products which are intended to absorb the products of the type described above by way of example in a hygienic, germ-free and airtight manner, they must be able to be produced very inexpensively in order to be sold on the market, i. on the one hand by the producers of the products and on the other hand by the consumers to be accepted. Furthermore, such containers must contain as complete as possible, often also separate legal provisions sufficient information about content, composition of the product, energy content of the product and information about the date of manufacture and use and certain other, in certain countries beyond legally required information on health in the container received product and the like.

For this reason, such containers are usually provided with separate labels that declare such information and the corresponding parameters about the product to the consumer. In many cases, manufacturers' names, specially protected trademarks and the like are attached to the labels and, as a rule, the product itself is also depicted for many products received in such containers, for example the sausage product, the cheese product or a product in the form of liver pate or the like.

The separate labels have the disadvantage that they significantly increase the production of the container, as then applied to the container after filling the product and closing the container, the label either on the container itself, the container base or possibly. On the container lid and the actual container will need.

Another serious problem with such containers is that, for example, when opening the container by lifting the lid, in the well-known yogurt and Quarkbehältern formed only by an aluminum foil, the lid does not tear off at the actually designated locations in the edge region of the container but the actual lid tears, so that the opened container then not even makeshift when the product received in the container has not been completely removed or consumed, can be closed. Another type of closure of such containers, in which a printed on the manner described above film is adhered to the actual container lid, shows in a attempt of opening the very serious disadvantage that the film separates in the opening attempt from the actual container lid, i. tears off from this, without the connection of the container lid is solved with the actual container, i. the container can not be opened, but that is the actual goal.

A third variant of containers is known in which a lid produced in the course of the production of the container lid by the method of the so-called "Immolded Label (IML)" in the injection mold is already connected to the film which forms the outer end of the container lid and an edge region of the film projecting beyond the container lid is connected to the container.

Such containers show the serious disadvantage that the unreinforced in the edge region of the container lid label or the film tears uncontrollably when opening the container or tear and also by the notch effect when tearing between the film and container lid, despite using the technique according to the method of "Immolded Label" the foil from the Behälterdekkel tears uncontrollably and the container can only be opened with foreign tools such as a pair of scissors or a knife. It goes without saying that such an opened lid is no longer able to close the container opening even if only in a makeshift manner when the product received in the container is not yet completely removed.

Another significant disadvantage is that many times a pollution of the environment or the consumer or user himself is the result of wanting to open a container designed in this way.

From the date of the same applicant EP-A-1 475 314 a container is known in which the above in connection with the previous containers and container lids indicated disadvantages have been solved in a very elegant and efficient manner.

The use of the reverting to the same applicant container for the various container contents for mass use and thus mass production requires very inexpensive solutions for the production of such containers, see above, where it is desirable, even further compared to the aforementioned generic container to reduce.

A significant cost-driving factor are the high production costs of the tools for the injection molds for the production of the above-described, in particular the generic container. With some exceptions, it can be said that the manufacturing costs of injection molds or tools are the lower, the allegedly simpler the products produced therewith. The term "simplicity" in the context of the final product produced should be understood to mean that it can be made in fewer and fewer process steps yet form a highly complex but highly efficient end product upon completion. It is therefore desirable that a simple production tool is provided, with which a possibly real highly complex, highly effective end product, here a container of the generic type, can be produced in a simple manner.

Although this goal is achieved in principle in the generic container in its entirety. As before, however, in containers of this type, the requirement of cost efficiency in the production, because these containers, as mentioned above, are regularly disposable products and are after the production, the filling with food products, the consumption of these products from the container then as empty containers disposed of, ie they are either supplied to the general household waste or are returned as a raw material from which they are made, back into the raw material cycle.

In addition to the production of the container, ie the manufacturing steps of the container consisting of container top and container base, as they are generically formed, the production of the injection molding tool is a very cost-intensive factor, see above, in the final production costs of these containers, depending on the number of manufactured Container, received directly. Rough can the finding that the simpler the injection molding tool is designed, the lower its manufacturing cost and the simpler the injection mold is formed, the easier the process steps with the tool regularly executable to the complete container, but especially the container top (lid) form, and the faster the container or its components can be made.

It is therefore an object of the present invention to provide a container of the type mentioned, which is even faster and easier to produce than the generic container that needs compared to the generic container for its production even fewer process steps, which manufacturing costs can be reduced, the very good properties of the generic container to be fully retained that, for example the closing behavior after the first opening for the intended use of the contents of the container during the subsequent closing of the container exceptionally good sealing properties are guaranteed and in principle can be closed as often as desired after the first opening and reopened without the sealing properties between container top and lid of the container and lower the container bottom.

The object is achieved according to the invention in that the collar element has a circumferential, with its free end directed to the cover element protrusion surface on which the lid member is attached.

The advantage of the solution according to the invention consists essentially, as desired, is that the actual sheet-like cover part is also integral here and together with the circumferential collar element, which forms a mechanical support to ensure the dimensional stability of the lid member here, the container base, ie the contents of the container, can again close safely, but due to the attachment of the lid member to the lid member directed to the projection surface, the Formed at the free end of the collar member, a formation of the attachment of the lid member on the collar member is possible, which allows quasi in a manufacturing step, the production of the collar member and the lid member.

Another significant advantage of this offered solution according to the invention consists essentially in the fact that the injection molding tool can be configured so constructive that the attachment, as desired, can be virtually realized in one operation with the production of the collar member, if necessary. Also in one operation with the Production of the lid, wherein it is also possible according to the invention to perform collar element, cover element and attachment in one step with correspondingly designed injection molding tool.

The solution according to the invention nevertheless makes use of the principle, as in the generic solution, that the surface-shaped cover element required for receiving visually recognizable information also here in the case according to the invention, perform both the function of the actual cover element and the function of the information carrier carrying the visual information can.

According to a very advantageous embodiment of the container, the edge of the container base is at least partially formed in the manner of a circumferential flange, ie in fact it is possible to use for the realization of the container according to the invention container bases, as generally in the simplest containers, such as the well-known sogn. Yogurt containers and its modifications are known. The lower container part can thus be designed very simply, without thereby the functionality of the container, ie the above-described interaction of the container upper part with the container lower part is adversely affected.

It is particularly advantageous in the formation of the peripheral flange of the container base to the opening of the container base, the peripheral edge around the opening of the container base, based on a thinking on a substrate resting on the container base substantially parallel to the ground, i. this reference - underground - always to maintain the formation of the circumferential flange, regardless of the cross-sectional shape of the actual container base. It is known that such containers or container bases may have any suitable cross-sectional shapes per se, for example trapezoidal, rectangular, bottle-shaped but also cup-shaped structures and the like. Advantageously, the flange is always parallel to a reference plane, namely here the ground formed.

According to a further advantageous embodiment of the container, the lid member is attached to the edge so that it covers it at least partially, ie, depending on the material of the lid member and / or in dependence of the material of the container base and / or in dependence of a material, the attachment causes the lid member on the edge, if necessary, the mounting width of the lid member can be selected on the edge, with the choice the actual mounting width can be selected on the edge depending on the size of the container. Low-weight food products housed in the container do not require the width of the attachment as heavy-weight products.

In another advantageous embodiment of the container, the lid member is fixed to the inside of the projection surface, which has the advantage that the production of the connection between the lid member and edge element can be done quasi in a manufacturing process, since, if the elements are made of plastic spritzfähigem, only one Side in the injection mold of the plastic needs to be injected. However, this embodiment of the invention also has the advantage that the attachment or the attachment area between the cover element and the edge from the outside is not visible, i. There is a visual protection and also a mechanical protection, because the cover element is then secured against "tearing up".

According to yet another embodiment, however, the cover element may preferably also be fastened to the outside of the projection surface, which would be an alternative way of fastening, for example, in the desirable case if one wishes to make the externally visible, available surface of the cover element as large as possible because you are anxious for certain purposes, as much information as necessary for the consumer, for example, visible from the outside on the cover element accommodate. In this case, the edge regions of the cover element, on which the connection with the collar element takes place, in full Umfamg for printing and the like. Exploited.

The lid member itself is formed according to a further very advantageous embodiment of the container of a foil-like body, it may also be advantageous to form the lid member together with the circumferential collar member in one piece, which z. B. technically feasible that the entire container top can be made in a single injection molding in a single suitably shaped injection mold, at the same time by the method of the already mentioned "Inmolded Label (IML)" the application of the externally recognizable to the viewer visual Information about the contents of the container and other information in the injection mold in the course of production of the container shell can be done.

But it is also advantageously possible to form the cover element and the collar element as separate parts, which are connected to each other by means of a suitable connection technique, for example by welding and / or gluing. Although in this embodiment of the container top, d. H. However, this configuration also makes it possible to provide different materials for the formation of the collar member on the one hand and the formation of the lid member on the other hand, due to external requirements on the other hand, with each initially separately manufactured cover element and separately produced collar element.

The edge of the container is preferably formed integrally with the container itself, ie, in this embodiment of the container, the manufacturing process is completed, for example, produced in an injection mold, the container is formed with edge and completely finished. In principle, however, it is also possible to form the edge or the edge region of the container lower part in turn as a separate part and that Container lower part as a separate part and then connect the surrounding around the container opening edge element with the container lower part itself again. Such solutions are for example advantageous if, for example, the material of the actual container base to form the attachment between the edge of the container and the lid member was not readily suitable. In this embodiment, for example, the container element made of suitably stable material of paper and / or cardboard base, whereas the separate edge region may for example consist of plastic, which in turn is suitably fastened or usable with the lid member, for example by welding, gluing, ultrasonic welding or simple by connecting the material of the cover element and the material of the edge element itself.

The thickness of the sheet-like lid member may be widely varied depending on the size of the container, the contents of the container, the product to be contained in the container, and the material used for the formation of the container. directly adapted to each to bewerkstelligende with the container packaging task. However, in order to keep the use of the necessary material for forming the cover element as small as possible and, if it is necessary to keep the cover element transparent to visible light, it is advantageous, the thickness of the cover element in the range of 0.1 to 0, 3 mm form.

For producing the sheet-like cover element and / or for producing the collar element and / or for producing the container lower part and / or for producing the separate edge region, when the container lower part requires such a different edge region, an injection-moldable plastic material, for example polypropylene, is preferably used,
but other suitable injection-moldable plastic materials can be used, provided that they are neutral with respect to the product received in the container, ie, this in its consistency, its taste and the like. Not affected.

The material of the cover element can, as mentioned, advantageously be chosen such that it is at least light-transparent in the visible region of the light, which has the great advantage that then recorded in the container product in the closed state of the container from the outside viewable or recognizable is.

The collar element itself advantageously has a region formed in the manner of a clip connection, which engages releasably latching behind the edge surrounding the container opening. At this detachable connection of the container upper part from or with the container lower part takes only mechanically stably formed, substantially dimensionally stable collar member part, i. the material requirement for the production of the container upper part can be specifically limited to the formation of the collar member, whereas the actual lid member according to the task as thin, i. foil-like, can be designed so that it is sufficient for the fulfillment of its hermetic closure function of the container base or of the product received in the container lower part.

Finally, it is of great advantage that the region of the collar element has a directed onto the edge of the container base, in cross-section substantially triangular-shaped projection which in the closed Condition of the container under the edge attacks. By such a configured clip connection between the container top and the container base a connection-proof and a hermetically sealed closure is formed, which even after multiple opening and closing of the container for a continuously ensured mechanical Verschließsicherheit and a seal to prevent the ingress of germs from the outside into the container interior provided.

It is extremely advantageous to design the container such that upon removal of the container upper part, consisting of collar element and cover element, the connection between the cover element and edge is releasably formed, whereas the connection between the cover element and peripheral edge remains firm. The connection or attachment between the cover element and the peripheral edge of the container bottom part on the one hand and the connection or attachment of the lid member and the collar member are formed differently with respect to the degree of their connection strength, so that the connection between collar member and lid member even after repeated opening of the container remains, whereas the connection between the cover element and the peripheral edge of the container always remains interrupted or dissolved after the first or one time release.

Fig. 1

in perspektivischer Darstellung einen erfindungstypischen Behälter, bestehend aus einem Behälterunterteil und einem Behälteroberteil, wobei das Behälteroberteil hier aus darstelle- rischen Gründen vom Behälterunterteil getrennt, d.h. hier leicht abgehoben dargestellt ist,

Fig. 2

eine Darstellung gem. Fig. 1, jedoch geschniten entlang der Linie A - B von Fig. 1,

Fig. 3

ein Detail des Randbereichs von Fig. 2 und

Fig. 4

in vergrößertem Maßstab einen Ausschnitt aus dem Randbereich gem. den Fig. 1 bis 3 in der Seitenansicht im Schnitt bei auf das Behälterunterteil aufgesetztem Behälteroberteil mit mit diesem verbundenen Deckelelement.

The invention will now be described in detail with reference to the following schematic drawings using an exemplary embodiment. Show:

Fig. 1

1 a perspective view of a container according to the invention, consisting of a container lower part and a container upper part, wherein the container upper part is shown here from FIG. Rischen reasons separated from the container base, that is slightly raised here shown,

Fig. 2

a representation acc. Fig. 1 but cut along the line A - B of Fig. 1 .

Fig. 3

a detail of the border area of Fig. 2 and

Fig. 4

on a larger scale a section of the border area gem. the Fig. 1 to 3 in the side view in section in the upper part of the container mounted on the container top with this connected cover element.

It should be understood that the illustrated figures represent no limitation of the container according to the invention to the constructive provisos shown in detail in the figures. Rather, all the elements and constructive provisos or measures shown in the figures are also part of the invention, without limitation, even if they are not expressly formulated or claimed in the claims at present.

The container 10, as in Fig. 1 is shown in complete form, and in Fig. 2 , as shown in half section, is used to hold solid, pasty and flowable and creative products, especially the inclusion of food products. However, the container 10 can also be used for the germ-free uptake of medical devices or in the field of medical means such as bandages or other medically usable small parts. In the closed state after filling the container 10 with the desired products and the subsequent hermetic sealing a germ-free storage of the products received in the container 10 is guaranteed.

The container comprises a container base for receiving the actual product. The container lower part 11 has a container opening 14 which, from the container upper part 12, cf. especially the Fig. 1 and 2 , is closed.

The container lower part 11 has a rim running around the container opening 14, which in the illustrations of the Fig. 1 and 2 here substantially at right angles to the side walls of the container base 11 protrudes. Since the shape of the container 10 or in particular of the container base can be configured as desired, the training nud orientation of the edge is better characterized by saying that the peripheral edge 15 of the container base, based on a thought on a substrate 28 resting of the container base 11, is formed substantially parallel to the ground 28, see the dashed line 28 in FIG Fig. 2 which represents an imaginary underground. It should be noted that the container base 11 may not only have the shape shown in the figures with circular cross-section, but also any other shape, for example, with cuboidal cross-section or oval cross-section and the like.

In principle, the container lower part 11, unlike in the figures, in which it is integrally formed, may also be formed in several parts, for example in the form of a separate part, the edge 15 and formed by the edge 15 upper flange 150th may include and may be connected in a manner not shown here with the remaining part of the container base 11. In other words, this means that the container base 11 can basically consist of several parts.

Since otherwise container 10 of this type are known, will be discussed below on the structural design of the container base 11 only in connection with the constructive requirements of the invention.

The container 10 also includes the already mentioned container base 11 and a container top 12, ie the actual container lid. The container top 12 and the container lid consists of a collar member 16, as it is the FIGS. 1 to 4 can be seen, wherein also on the detail illustrations gem. the Fig. 3 and 4 is referenced. The container top 12 also includes a substantially flat lid member 17, which also from the Fig. 1 to 4 is recognizable. The flat lid member 17 is formed much thinner compared to the other walls of the container part 11 and the collar member, which will be described in detail below.

The collar element 16 is designed in such a way that it runs around the container opening 14 as a one-piece molded part, ie surrounds it like a collar, cf. especially the Fig. 1 and 2 , The collar element 16 effectively forms a frame that encloses the flat Dekkeleelement 17. The collar element 17 has essentially two regions, namely a web-like region 19, which here in the figures essentially protrudes at an acute angle relative to the edge 15 of the container lower part 11, and a projection 162,
wherein the projection 162 is again integrally formed at an acute angle with the web-like region 19. The projection 162 forms a projection surface 161 both on its one side (inside) and on the other side (outside), with reference to the representations in the figures, in particular in FIGS Fig. 1 and 3 , The region 19 forms part of a clip connection 18 and the edge 15 and the peripheral edge 150 of the container base 11 forms another part of a clip connection 18, wherein both parts form common clip 18, in such a way that the edge 15 and the peripheral flange 150 and in the region 19 of Clip connection 18 on the container base 11 to projecting projection part 180 engage behind latching.

The projection 162, which functions as part of the collar member 16, faces the lid member 17 with its free end 160. At the projection surface 161 formed at the free end of the collar member 16, the actual lid member 17 is fixed, which is part of the container top 12. The cover element 17 consists, as already indicated, of a foil-like body which, for example, has a thickness 24 in the range of 0.1 to 0.3 mm. The lid member 17, i. the film-like body may, in one preferred embodiment of the container 10, be made in one piece, i. integral with the collar member 16 may be formed. Such a configuration of the container 10 or the container upper part 12 can be produced in a single injection molding process.

But it is also possible to produce separately the lid member in the form of the film-like body and to connect with the peripheral collar member 16, for example by means of welding and / or gluing. In this case, the projection surface 161 of the collar member, which, as stated, is formed at the free end of the collar member 160, have a circumferential recess corresponding to the thickness 24 of the cover member 17, as clearly in the enlarged view in FIG Fig. 4 is apparent. In this recessed area of the projection surface 161, in the representation of the figures "inside", ie in the imaginary space with approximately triangular cross-section, as in the closed state of the container 10, that is placed on the container base 11 container top 12 "inside", the lid member 17 in the recessed area of the projection surface 161, although by means of said welding and / or adhesive connection or a direct connection of the two materials. But it is also possible, not shown here, the cover member 17 gem. to attach the representations "outside" on the projection surface 161, for example, there in a possibly there to be provided recess.

On the peripheral edge or the circumferential flange of the container base 11, the lid member 17, in a prescribed manner connected to the collar member 16, on, see. the Fig. 4 , namely, when the container 10 is closed, that is, the container top 12 is applied to the container base 11, as in Fig. 4 is shown.

After the container base 11 and the container top 12 have been prepared in the manner described above, the container base 11 is filled with the product at the manufacturer of the product with which the container 10 is to be filled. Subsequently, the container top 12 is placed on the container base and moved towards each other, that said clip 18 between the edge 15 and the free end of the peripheral flange 150 of the container base 11 and the projection 180, "inside" in the region 19 of the clip connection 18 of Container upper part 12 and the collar member attached, locked together, the detent due to a slight elastic deformation of the collar member 16 in the direction of the arrow 30, see Fig. 4 , Is the lid member 17 on the edge 15 and the peripheral flange 150 is also, at least in the formation of the container 10 shown here, the free end 160 of the collar member 16 via the intermediate lid member 17 also on the edge 15 and the peripheral flange 150, see Fig. 4 ,

Subsequently, the lid member 17 resting on the rim 15, i. this at least partially covering, attached to this, by gluing and / or welding and / or other suitable bonding techniques or connecting means.

The filling of the container base 11 and the subsequent welding of the lid member 17 with the edge 15 and the peripheral flange 150 can be carried out in a vacuum.

To remove the container upper part 12 from the container base 11, the user with his fingers under the free end of the collar member 16, in the figures, the "downwardly directed" free end of the container top, to be grasped, in the direction of arrow 26 pulling.

Since the material used for the formation of the container base 11 and the container top 12, which may for example be a suitable injection-moldable material, such as propylene, is elastic, in the direction of arrow 26, an elastic deformation of the free end of the collar member 16 can be effected, so that this comes out of engagement with the free end of the peripheral flange 150 of the edge 15 of the container base 11, wherein subsequently the container top 12 can be raised altogether, wherein subsequently the welding and / or adhesive connection between the circumferential flange 150 of the rim 15 and the cover member 17 triggers. The welding and adhesive connection is set such that when opening no damage to the peripheral flange 150 of the rim 15 and the cover member 17 as such takes place. If the container upper part 12 is then raised even further by corresponding tilting, the connection of the cover element with the peripheral flange around the entire container opening 14 is released. After removal of the container top 12 in its entirety, the product can be removed from the container base 11.

If the container bottom is then closed again, the container top 12 is placed back on the container base 11 and in the direction of arrow 27 so far moved toward one another until the clip 18 between the projection 180 and the free end of the peripheral flange 150 of the container base locks together. The residual product located in the container bottom part 11 can then be stored again substantially tightly sealed in the container 11.

If the film-shaped cover member 17 made of light-transparent material, the user of the container 10 can recognize the container contents even in the closed state of the container 10, which is for presentation purposes of the container contents, for example in shelves or cabinets and the like., Of great advantage.

LIST OF REFERENCE NUMBERS

10

container

11

Container bottom

12

Container top (container lid)

13

Bar (container top)

14

container opening

15

edge

150

circumferential flange

16

collar element

160

free end of the collar element

161

projection face

162

head Start

17

cover element

18

clip connection

180

head Start

19

Area (clip connection)

20

21

22

23

24

thickness

25

welded joint

26

arrow

27

arrow

28

underground

29

attachment

30

arrow

Claims (15)

Container (10) for solid, pasty and flowable and creatifiable products, in particular for food products, comprising a container base (11) for receiving the product and a container lid designed as a container top (12), wherein the container bottom part (11) has a closed to his Having the container opening (12) running around edge (15), that the container upper part (12) consists of a around the container opening (14) running around, this collar-like collar member (16), and consists of a substantially sheet-like cover member (17) that the the lid member (17) is secured to the collar member (16) and at the edge (15) of the container base (11) releasably secured, characterized in that the collar element (16) has a circumferential, with its free end (160) on the lid member (17) directed projection surface (161) on which the lid member (17) is attached. Container according to claim 1, characterized in that the edge (15) of the container lower part (11) is formed at least partially in the manner of a circumferential flange (150). Container according to one or both of claims 1 or 2, characterized in that the cover element (17) is at least partially covering the edge (15) releasably attachable to this. Container according to one or more of claims 1 to 3, characterized in that the cover element (17) is fastened on the inside to the projection surface (161). Container according to one or more of claims 1 to 4, characterized in that the cover element (17) is fastened on the outside to the projection surface (161). Container according to one or more of claims 1 to 5, characterized in that the peripheral edge (15) of the container lower part (11), relative to a lying on a substrate (28) resting the container lower part (11), substantially parallel to the substrate ( 28) is formed. Container according to one or more of claims 1 to 6, characterized in that the cover element (17) consists of a foil-like body. Container according to Claim 7, characterized in that the cover element (17) is formed in one piece together with the encircling collar element (16). Container according to claim 7, characterized in that the cover element (17) and the collar element (16) are each separate parts. Container according to one or more of claims 1 to 9, characterized in that this is formed integrally with its edge (15). Container according to one or more of claims 1 to 10, characterized in that the thickness (24) of the sheet-like cover element (17) is in the range of 0.1 to 0.3 mm. Container according to one or more of Claims 1 to 11, characterized in that the collar element (16) has a region (19) designed in the manner of a clip connection (18) which releasably latches behind the edge surrounding the container opening (14) (15) attacks. Container according to Claim 12, characterized in that the region (19) of the collar element (16) has a projection (21), which is essentially triangular in cross-section and directed towards the edge (15) of the container lower part (11) Container (10) under the edge (15) engages. Container according to one or more of claims 1 to 13, characterized in that when removing the container upper part (12), consisting of collar element (16) and flächenförmigem body (17), the connection between flächenförmigem body (17) and edge (15) releasably is formed, wherein the connection between sheet-like body (17) and peripheral edge (15) remains firm. Container according to one or more of claims 1 to 14, characterized in that the material of the container base (11) and the material of the collar element (16) is of identical design.

Images