MX2009000413A

MX2009000413A - Cardboard/plastic composite packaging having a pull-off cover, and a method and device for the production thereof.

Info

Publication number: MX2009000413A
Application number: MX2009000413A
Authority: MX
Inventors: Matthias Dammers; Werner Vierboom; Birgit Birninger; Joerg Berger; Achim Konze
Original assignee: Sig Technology Ag
Priority date: 2006-07-13
Filing date: 2007-07-13
Publication date: 2009-02-25
Also published as: BRPI0714214A8; ATE501040T1; DK2040986T3; DE102006032638B4; BRPI0714214B1; DE102006032638A1; PT2040986E; US20100193391A1; BRPI0714214A2; RU2425785C2; DE502007006681D1; PL2040986T3; WO2008006907A1; EP2040986B1; ES2362043T3; EP2040986A1; RU2009104957A

Abstract

The invention relates to a cardboard/plastic composite packaging comprising a packing covering (8) provided with a longitudinal seam (6), the packing covering having a folded and sealed package bottom (18) that is provided at one end (16) of the packing covering (8), and to a method and a device for the production thereof, wherein the objective of providing a cardboard/plastic composite packaging, which is also suitable for non-liquid products and moreover is easily stacked, is achieved in that a circumferential web (10) is provided at the upper end (11) of the packing covering (8), and that a lid (14/L) is removably attached to the web (10) in a pull-off manner.

Description

COMPOSED CARTON / PLASTIC CONTAINER WITH A REMOVABLE COVER. AS WELL AS METHOD AND DEVICE FOR THE PRODUCTION OF THIS DESCRIPTION OF THE INVENTION The invention relates to a package made of cardboard / plastic consisting of a container envelope provided with a longitudinal seam and a container floor provided at one end of the packaging envelope, folded and welded, as well as with two methods for its production. Cardboard / plastic containers have been known for a long time and can be purchased on the market in multiple shapes and contours. For example they serve as beverage containers or also as food containers. It is known to provide the containers with an opening aid to facilitate the consumer access to the product. To this end, an element covering a pouring opening provided in the packaging material consisting of cardboard / plastic is usually provided in the upper part of the carton / plastic composite pack. The pouring opening serves to pour the product. The element covering the pouring opening may be a releasable strip that releases the pouring opening upon removal. It is also known to fix a frame in the cardboard / plastic composite container enclosing the pouring opening. The frame can have a lid that releases the opening when it is opened. Between the lid and the Pouring opening can be provided again a strip that must be removed when opening the lid for the first time to reach the product. Alternatively, the lid may be attached to the frame in one piece before the first opening. When opening for the first time, the lid is then partially separated from the frame and frees the pouring opening. The frame can also be provided with a pour and pour nozzle as well as pouring aid. The frame may also have a sleeve provided with a thread in which a screw cap can be screwed. The screw cap can be used in particular to make a perforation in the carton / plastic packaging material when opening for the first time and thus produce the pouring opening. The aforementioned elements for covering a pouring opening can be designed in particular in such a way as to make it possible to reclose the cardboard / plastic composite container. In carton / plastic composite packages it is a disadvantage that they are suitable only for liquid contents because of their generally very small pouring opening. Furthermore, the known cardboard / plastic composite containers, with pouring elements that occupy a height, are not easy to stack and, therefore, can not be placed optimally in a minimum space for transport and / or storage. From US-A-5 236 120 a package made of plastic board consisting of a packaging envelope and a folded and welded packaging floor provided at one end of the packaging envelope according to the state of the art is known. This container is closed by a cover that closes an opening that releases almost the entire cross section and that is fixed detachably. The design of the upper edge of the known composite container is constructively complex. Another packaging container having a lid that closes the cross section is known from DE-A 1 -3 641 385. In this container, the upper edge of the composite container consists of a rolling edge in which it has been sealed together a removable lid. Also the production of the edge by rolling is constructively complex a. The invention is therefore based on the object of indicating a simple cardboard / plastic composite package which is also suitable for non-liquid products and which can also be stacked well without having a complex construction a. This object is solved in terms of the carton / plastic composite packaging inventively because a circumferential rim is arranged at the upper end of the packaging envelope and in this rim a lid is removably affixed and because the rim is disposed in a disposable manner. a frame joined in the upper region of the packaging envelope. Regarding the cardboard / plastic composite containerThis object is achieved according to the invention by arranging at the upper end of the container envelope a flange extending around it, by fixing a cover on this flange in such a way that the cover can be detached and by arranging the flange in a frame that is connected to the upper region of the package envelope. The invention is based on the recognition that thanks to Provided a frame and a flange it is possible to fix a lid removably in a cardboard / plastic composite container having a bent and welded container floor. The lid can be designed uniformly with the carton / plastic package and offers by releasing - and thereby releasing the entire cross-section of the carton / plastic package - the option to remove even compounds in the form of pieces in whole and careful packaging made of cardboard / plastic. It has been surprisingly detected that the carton / plastic composite package possesses sufficient stability to satisfy the requirements of production and distribution and sale. In a particularly advantageous manner, it is possible to use, as a result, a cardboard / plastic composite container also for products that do not have a liquid character. The use of the cardboard / plastic composite container is thus suitable for containing yogurt and other foods containing components in pieces. These can be ingested, even directly, after removing the lid, from the cardboard / plastic packaging. For example, it is possible to extract "carefully" also any vegetable or meat product thanks to the large container opening. Another advantage of the invention is that the always flat lid can contribute to an appearance of the uniform and attractive cardboard / plastic composite package by an appropriate design such as printing. In a particularly preferred embodiment, the envelope of the container is produced from a rectangular cut, since in this way waste-free production is ensured.

According to another teaching of the invention, the lid may consist of a sheet or a cardboard / plastic composite material. This allows a particularly simple and economical production of the lid. The flange is inventively arranged in a frame joined with the upper region of the package enclosure. In particular, it is possible to fix the lid on the flange before or after the joining of the frame to the upper region of the container's envelope. The frame can be produced by the injection molding method. In this way it is possible to economically realize a multiplicity of forms. A particularly preferred embodiment is characterized in that the cover is welded to the flange. The lid can, however, also be applied by gluing or sealing. Regardless of how the lid is fixed on the rim, it is possible to make the lid in such a way that it can be closed again so that the remaining part was protected after a partial extraction of the product. It is already known, per se, from US-A-3 272 422 to design a composite package with a lid that can be closed again. The wrapping of the container, in addition, can be printed. This allows to achieve a particularly favorable effect for the sale. All known methods can be used for printing. The invention is limited to no particular form of printing. In particular, the invention includes the printing of an intermediate and / or cover layer of the packaging material. By a corresponding design of the cross-section of the packaging envelope, in particular round, oval or rectangular, With or without rounded edges, it is possible to produce a large number of different cardboard / plastic composite packages. The shapes can be adjusted to the product and to the desired external impression and presentation. It is also possible to foresee particularly favorable forms for transport and storage logistics, which allow transport and storage of as many cardboard / plastic composite containers as possible in as small a volume as possible. By means of planes made in parallel of the container and lid floor, it is also possible to stack the inventive composite container in a favorable manner. In a particularly advantageous manner, the floor of the container can be made in rectangular form, for example, folded as a flat gable. The floor of the container can be designed in particular for stable positioning, so that each carton / plastic package can stand independently independently even in the open state. In this way it is possible to place the cardboard / plastic composite container during consumption or extraction of the product without the product coming out. In another embodiment, an additional protective cap can be provided, the protective cap being able to close the cardboard / plastic composite container after opening the lid. In this way, it is possible for the consumer to re-close the cardboard / plastic composite container once it is opened in a simple manner and thus guarantee the freshness of the remaining product. In particular, the protective cover can be hooked in positive connection with the cardboard / plastic composite container (cover cap), but also joined by welding, gluing or sealing. By providing a frame it is possible to achieve a secure hooking of the protective cover on the frame by means of a particular design of the frame. The frame is designed for this purpose with particular advantage in such a way that it has at least one element for engaging the protective cover. The frame can have at least one notch, arranged in the circumference, for engaging the protective cover. But it is also possible that the frame has at least one projection, arranged on the circumference, to engage the protection cover. In this case, it is possible to provide a particularly good retention of the protective cover by means of a particular selection of the projections and recesses, and in addition it is possible to minimize the material necessary for the production of the frame. As for the method, the objective is achieved by the following steps: - Production of a cut of a strip of composite material, - Seal two edges of the cut to form a longitudinal seam, so that a packaging envelope is generated, - Provide a frame and a circumferential rim in the container's envelope, - Produce a container open on one side by applying a lid on the rim, - Sterilize the container, open on one side, through the floor opening, - Optionally turn the container open on one side, - Filling through the container floor, open on one side, with a product, and - Folding and sealing the floor of the container to form a stable container floor. Alternatively the problem is solved in terms of the method by the following steps: - Produce a cut of a strip of composite material, - Seal two edges of the cut to form a longitudinal seam, so that a packaging envelope is generated, - Produce a container opened on one side by bending and sealing the floor of the container to form a stable container floor, - Provide a frame and a circumferential rim on the container's envelope, - Sterilize the container, open on one side, through the top end of the packaging envelope, - Filling the container open on one side, with a product, - Sterilizing a lid and - applying the lid on the flange. In this way, two solutions are indicated for the objective: that is, a lid can be fixed first, the carton / plastic composite package can be filled at a later stage and then the floor of the container can be produced, or the Container floor, fill the carton / plastic container at a later stage and then replace the lid. They can be produced in this by the methods referred to in all the characteristics of the inventive object, such as the cross-sectional shape of the packaging envelope, the folding of the floor of the container and its stable embodiment, the welding of the lid and the printing of the lid and of the wrapping of the container. It is particularly simple to fold the floor of the container, if the trimming is provided prior to the formation of the longitudinal seam with groove, respectively, crease lines. In particular, it is simple in this way to make the floor of the container rectangular. Thanks to the floor of the container is first provided with a floor seam and then the container ears, generated by bending inward, against the floor of the container and are fixed in this way, because the The surface of the floor is concave shaped, it is simple to produce a container floor with particularly stable equilibrium, since the cardboard / plastic composite container is thus essentially stopped only on its four outer edges of the packing floor. The invention is explained in more detail below by means of a drawing representing only a few preferred embodiments. In the drawings it is shown: Figure 1 shows a cutout of a strip of composite material, Figure 2 shows a packaging wrapper in a mandrel in horizontal section, Figures 2A to 2C show different configurations of a longitudinal seam, Figure 3 shows a container floor in a horizontal plane view from below, Figure 4 shows a container enclosure, represented only in part, with a frame placed in vertical section, Figures 5 and 6 show other exemplary embodiments. of the container enclosure according to Figure 4 Figure 7 shows a frame with a flange in horizontal plane view, Figure 8 shows a vertical section of the frame along the line XIII-XIII in Figure 7, Figure 9 shows the frame according to figure 7 and 8 with a protective cover hooked in vertical section, figure 10 shows another embodiment of a frame in horizontal plane view, figure 1 1 shows a vertical section of the frame along the line XVI-XVI in Figure 10 and Figure 12 shows another modality of a frame in horizontal plane view. Figures 1 to 3 represent intermediate steps in the production of the inventive cardboard / plastic composite pack. Figures 4 to 1 2 represent additional modalities. Figure 1 shows a cutout 1 that is produced from a strip of composite material. All known methods of trimming can be used, such as cutting by water jet or stamping. The strip of composite material may have different layers and be printed. With In particular, a cut-out 1 is selected in a rectangular format, since in this way a waste-free production is ensured. The cutout also has groove lines 2 respectively fold. Thanks to these groove lines 2 respectively fold, the bending of the cutout 1 is significantly simplified subsequently. Figure 2 shows that the cutout 1 is placed around a mandrel 3 and two edges 4 and 5 of the cutout 1 are sealed to form a longitudinal seam 6. As shown in Figure 2A, it is an advantage if the inner edge 5, that is to say, the one resting on the mandrel 3, is made in flayed form. The edge 5 is peeled off for this firstly on the side facing away from the mandrel 3 in a region. The edge 5 is then folded, and optionally fixed in such a way that one half of the skinned region rests on the respective other half. In this way it is possible to simply prevent the product from subsequently contacting the board of the cutout 1. It is also possible to ensure a subsequent sterilization in this way. As shown in Figure 2B it is also possible to protect the edge 5 by an overlapping seal strip 7 which can also be joined by sealing. Furthermore, it is possible, as shown in FIG. 2C, to arrange the sealing strip 7 in a U-shape around the edge 5. In particular, the sealing strip 7 can be fixed on the edge already during the production of the blank 1 by means of a strip 7 to seal companion. By sealing the longitudinal seam, a packaging envelope 8 is produced as a function of the shape of the mandrel 3. In the figure 2 shows an essentially rectangular cross-section of the packaging envelope 8 with rounded edges 9. The packaging envelope 8 is still open on both sides. Alternatively, it is possible to produce, depending on the shape of the mandrel 3, eg also round or oval cross sections. Figure 3 shows that the previously opened end of the wrapper 8 of the package is bent to form a floor 1 8 of stable packaging with container ears 19. For this, the open end was first provided with a floor seam and the container ears 19 generated after folding inward were fixed on the container floor 1 8. In particular, it is an advantage if the container ears 9 are pressed in such a manner against the container floor 1 8 and that the surface of the floor adopts a concave doming thereon. Then only the four outer edges of the 1 8 container floor make contact when placing the cardboard / plastic composite container, which produces a particularly stable balance. At the upper end 1 1 of the container casing 8 a circumferential rim 10 is arranged in a frame 21, connected to the upper region of the packaging casing 8, as explained below. The frame 21 has, in the illustrated embodiments, the same reference symbol, although it can be differentiated in each case in terms of design and material. In the embodiment shown in FIG. 4, the flange 10 is formed in a frame 21 joined to the upper region of the container wrap 8. Frame 21 has an L-shaped profile for this and it is fixed in the container shell 8 by flanging the upper end 1 1. In this mode, the lid is fixed to the frame 21 only in a later stage not shown and a container 1 3 open on one side is thus produced again. To fix the frame 21, shown in FIG. 5, it is only necessary - unlike the example shown above - to fix the frame 21 on the upper end 1 1 of the container cover 8. A complicated fold of the upper end 1 1 can be dispensed with, which considerably simplifies production. The fastening of a cover 14 on the rib 1 0 can be done before or after the fastening of the frame 21 on the upper end 1 1 of the packaging enclosure 8. A particularly stable embodiment of a frame 21 is shown in FIG. 6. In particular because of the stop 22 of the frame 2 1 it is possible to position the frame 21 in a particularly simple manner, since the depth of insertion of the frame 21 at the end 1 The upper part of the packaging envelope 8 is limited by the stop 22. As soon as the cover 14 has been detached, in particular in case it has been made so that it can not be closed again, it can be an advantage to provide a cover 24 for additional protection. For the protective cover 24, described in the following, the same reference symbol is used in each case. But in particular the design and the material used in the production of the protective cover 24 can be made differently in each case. Figure 7 shows a plan view of a particular embodiment of the frame 21. Frame 21 has elements to attach the protective cover 24 shown in figure 9. These are four recesses 23 arranged around, represented by interrupted lines that can also be made with other dimensions. In Figure 8 it is shown how the frame 21 is fixed in the upper region of the package enclosure 8. This mode is particularly compact, so that several cardboard / plastic composite packages can be placed side by side in a particularly narrow manner and occupying a minimum space. In the recesses 23, the protection cover 24 can be engaged and engaged as shown in FIG. The protective cover 24 shows four bulges 25 which serve to fit into the four recesses 23 of the frame 21 and to engage the protective cover 24 in the frame 21. In this way it is possible to reclose the cardboard / plastic composite container even after removing the lid 14 previously fixed on the rim 10. Another embodiment of a frame 21 having an element for retaining a protective lid 24 is shown in the figures 1 0 and 1 1. The frame 21 has a circumferential projection 26 which serves to engage an appropriately configured protection cover 24. It is apparent from FIG. 11 that the projection 26 projects beyond the external cross-section of the container casing 8. As shown in Figure 12, the frame 21 may also have several projections 26 arranged around to engage a protective cover 24. In this way it is possible to simply reduce the material required for the production of the frame 2 1 and, thereby, save costs.

But the present invention is not limited to the embodiments mentioned above. It is possible, for example, to also provide different cross-sectional shapes for both ends of the cardboard / plastic composite container. It is thus possible, for example, to make the floor of the container essentially rectangular in the area of the frame, but essentially in the form of a circle in the area of the frame. The envelope is then converted from an essentially rectangular cross section to an essentially circular cross section and the cover to be placed by welding is then fitted to the circular cross section.

Claims

CLAIMS 1 . Container made of cardboard / plastic consisting of a container envelope provided with a longitudinal seam and a container floor provided at one end of the folded, welded container shell, characterized in that at the upper end of the envelope is disposed a circumferential rim, because in the rim a lid is fixed in removable form and because the rim is disposed in a frame attached to the upper region of the container wrap. 2. The cardboard / plastic composite container according to claim 1, characterized in that the container wrap is produced from a rectangular cutout. 3. Container made of cardboard / plastic according to the claim 1 or 2, characterized in that the lid is produced from a sheet or sheet. 4. Composite cardboard / plastic container according to claim 1 or 2, characterized in that the lid is produced from a cardboard / plastic composite material. 5. The cardboard / plastic composite container according to one of claims 1 to 4, characterized in that the lid is welded to the flange. 6. The cardboard / plastic composite container according to one of claims 1 to 4, characterized in that the lid is stuck on the rim. 7. Container made of cardboard / plastic according to one of claims 1 to 4, characterized in that the lid is joined to the flange to be sealed. 8. The cardboard / plastic composite container according to one of claims 1 to 7, characterized in that the lid is made so that it can be closed again. 9. The cardboard / plastic composite container according to one of claims 1 to 8, characterized in that the floor of the container is made rectangular. 10. The cardboard / plastic composite container according to one of claims 1 to 9, characterized in that the cross-section of the packaging envelope is essentially in round form. eleven . The cardboard / plastic composite container according to one of claims 1 to 9, characterized in that the cross-section of the container envelope is essentially oval-shaped. 12. The cardboard / plastic composite container according to one of claims 1 to 10, characterized in that the cross section of the The wrapping of the container is essentially rectangular in shape with rounded edges. 13. The cardboard / plastic composite container according to one of claims 1 to 12, characterized by a protective cover that is made so that it can be closed again. 14. Container made of cardboard / plastic according to claim 1 3, characterized in that the protection cap is made as cap of Little Red Riding Hood. 15. Container made of cardboard / plastic according to claim 1 3 or 14, characterized in that the frame has at least one element for retaining the protective cover. Composite cardboard / plastic container according to claim 1 5, characterized in that the frame has at least one notch disposed in its circumference to retain the protective cover. 17. Container made of cardboard / plastic according to claim 14 or 16, characterized in that the frame has at least one projection on its circumference to retain the protective cover. Method for the production of a composite container cardboard / plastic according to one of the claims 1 to 1 7, characterized by the following steps: - Production of a cutout of a strip of composite material, - Seal two edges of the cutout to form a longitudinal seam, so that an envelope is generated of container, - Provide a frame and a circumferential rim in the container's envelope, - Produce a container open on one side by applying a lid on the rim, - Sterilize the container, open on one side, through the opening of the container. floor, - Optionally turn the container open on one side, - Filling through the floor of the container, open on one side, with a product, and - Fold and seal the floor of the container to form a stable container floor. 19. Method for the production of a cardboard / plastic composite container according to one of claims 1 to 17, characterized by the following steps: - Produce a cut of a strip of composite material, - Seal two edges of the cut to form a longitudinal seam , so that a container envelope is generated, - Produce a container open on one side by bending and sealing the floor of the container to form a stable container floor, - Provide a frame and a circumferential flange in the container's envelope, - Sterilize the container, open on one side, through the upper end of the container's envelope, - Fill the container open on one side, with a product, - Sterilize a cap and - apply the cap on the flange. 20. Method according to one of claims 1 8 or 19, characterized in that the cut-out is provided with groove lines respectively fold before the formation of the longitudinal seam. twenty-one . Method according to one of claims 1 to 8, characterized in that the floor of the container is first provided with a floor seam and then the container ears generated by folding inward are pressed against the container floor and fixed thereon. such that the surface of the floor has a concave bulge.