Fibrous material container with lid

EP4761978A1Pending Publication Date: 2026-06-24PAPACKS SALES GMBH

Patent Information

Authority / Receiving Office
EP · EP
Patent Type
Applications
Current Assignee / Owner
PAPACKS SALES GMBH
Filing Date
2023-08-18
Publication Date
2026-06-24

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Abstract

The invention relates to a container with a receptacle (1) having at least one opening (2) and a lid (5) for closing the opening (2), that is connected to the receptacle (1) via an elastically deformable hinge. In order to create an environmentally friendly container, the receptacle (1) is made of fibrous material and has a biodegradable or bioinert coating, wherein the lid (5) also consists of fibrous material and wherein a flexible hinge strip (6') of fibrous material attached to the lid (5) is bonded to the receptacle (1), wherein the receptacle (1) has a structural reinforcement in the region of the opening (2), and the hinge strip (6') is bonded to the receptacle (1) in the region of the structural reinforcement.
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Description

FIBER CONTAINER WITH LID Technical area

[0001] The invention relates to a container having at least one opening and a lid for closing the opening, which lid is connected to the container via an elastically deformable hinge.

[0002] Such plastic containers are widely used to package liquid products or similar bulk goods. They are made of plastic, with the resealable lid of the container generally being molded onto a screwed-on lid holder via a film hinge. The lid holder is screwed or latched to the container. EP 2 050 685 A1 describes a container, namely a child-resistant bottle, comprising a hollow cylindrical container with a peripheral wall and an opening at one end. A ring is arranged as the first connecting element on the peripheral wall of the hollow cylindrical container and is connected to a lid via a film hinge. The connecting element, film hinge, and lid are made of polymer material.

[0003] It is well known that plastic packaging containers are problematic because plastic is not or only very difficult to biodegrade and pollutes the environment and the world's oceans.

[0004] Safe packaging made from molded fibers is also known. These containers are called pulp mold containers and are formed from pulp in a suction mold. Water is sucked out of the pulp via the suction mold, causing the cellulose fibers contained in the pulp to deposit on the surface of the suction mold. The container thus formed is drained and can be used for packaging liquids and bulk goods. EP 1 221 413 A1 describes the production of such a molded fiber container. However, no resealable lid hinged to the container is disclosed.

[0005] Of course, fiberglass containers with pivoting lids are also known (see DE 16 11 944 B1). However, these egg cartons are not liquid-tight and therefore cannot hold liquids or fine-grained powders. GB 2 420 265 A describes a one-piece biodegradable drinking container with a cup section and an integral lid connected to the cup section via a film hinge made of biodegradable material.

[0006] The publication WO 2014 / 031869 A1 relates to a fiber container with the features of the preamble of claim 1. In most embodiments, the container and lid are made from a single piece, similar to egg cartons, and are connected to each other via a fiber film hinge. In the embodiment shown in Figure 2a, the container consists of two half-shells with a circumferential edge, and a film hinge is glued to the circumferential edge. Summary of the invention

[0007] The object of the invention is to create a biodegradable container that is easy and safe to handle and safely stores liquids and bulk materials contained therein.

[0008] This object is achieved according to the invention in that the container has a structural reinforcement in the area of ​​the opening and the hinge strip is glued to the container in the area of ​​the structural reinforcement.

[0009] The proposed solution is a fiber-molded container with a biodegradable or bioinert coating, so that the container cannot pollute the environment. Natural coatings such as lipids, oils, or waxes are generally biodegradable. Coatings containing silicon dioxide, for example, are bioinert. Furthermore, it is proposed that the lid also be made of biodegradable fiber. The applicant has optimized the manufacturing processes for fiber moldings to such an extent that a lid with a thick wall and / or high strength can also be manufactured from fiber.

[0010] In particular, pulp compression molding can be used to produce molded parts with high dimensional stability and strength. In contrast to fiber casting, in which a molded part is sucked out of an aqueous pulp using a suction mold, fiber compression molding involves filling a slurry-like pulp into the cavity of a two-part mold. A second molded part with a projection is pressed into the cavity of the first molded part, draining the pulp. For this purpose, the walls of at least one of the two molded parts are porous. At the end of the pressing process, the cavity in the first molded part and the projection or raised mold section in the second molded part, which projects into the cavity, define a space that corresponds to the contour of the molded part to be formed. This molded part made of fiber can be dried and used as a lid. Such a fiber lid may be too brittle to serve as a flexible film hinge.In this case, the fiber lid is attached to the container with a flexible hinge strip made of fiber material that is glued to the container. Alternatively, a portion of the lid can be flexible and, for example, have a bead that defines a crease line. The lid then has a stationary portion on one side of the bead, which is glued to the container wall, and a movable portion on the other side, which can be pivoted around the crease line.

[0011] The lid can also be extracted from the pulp using a fiber-casting process. In particular, the strength of the lid can be increased by coating. A pressing process following the extraction process can also serve to compact the fiber material of the lid and thus increase its strength.

[0012] The container has structural reinforcement in the opening area, and the hinge strip is glued to the container in the area of ​​the structural reinforcement. In the container from WO 2014 / 031869 A1, the container has a homogeneous wall thickness and no reinforced area. It is therefore flexible and unstable in the area where the film hinge is glued. This makes handling the container difficult. The structural reinforcement can be, for example, the following: a connecting element made of biodegradable or bioinert material, an area with increased wall thickness, reinforcing profiles, in particular beads or ribs, in the wall of the container, coatings of the container wall in the opening area.

[0013] A connecting element is a separate component that is attached to the container during or after production and provides increased strength. The wall thickness of the container can also be increased in the area of ​​the opening. For example, when manufactured using the pulp compression molding process, a container contour can be produced which has a greater wall thickness in the area of ​​the opening by ensuring that the gap between the two mold halves used to produce the container is further apart in this area than in other areas of the container. When manufactured from fiber casting, it is possible to suck pulp into the area of ​​the opening over a longer period of time so that the deposited fiber material has a greater wall thickness in the area of ​​the opening. Finally, a reinforcing profiling can also be arranged in the area of ​​the opening.Curvatures of the container contour, and especially beads or ribs, stiffen the container in the opening area. A short rim surrounding the opening can also be arranged in the opening area to reinforce the container. This rim can have a bead for additional reinforcement. Finally, the container wall in the opening area can be coated, thereby structurally strengthening it. A coating containing silicon oxide increases the strength of the container.

[0014] A separate hinge strip can be made of paper, especially kraft paper. The hinge strip is extremely strong. With appropriate coatings, the hinge strip can be made moisture-resistant. The hinge strip can be decoratively printed. The hinge strip thus combines the technically required flexibility, allowing the lid to be opened and closed multiple times, with positive aesthetic features. The fiber material of the hinge strip is biodegradable, even when coated with a moisture-resistant coating. The resealable packaging with the hinged lid is therefore environmentally friendly and meets the highest functional and aesthetic standards.

[0015] In practice, the container can have a connecting element made of biodegradable or bio-inert material in the area of ​​its opening, which gives the container increased strength, wherein the hinge strip is glued to the container in the area of ​​the connecting element. To stabilize the opening of the fiber-cast container, a stable connecting element can be provided at the opening. This can be glued to the fiber-cast material of the container or connected in some other way in a material-to-material or form-fitting manner. The lid can be glued to this connecting element by means of the hinge strip, wherein a circular projection of the lid can fit into an annular opening of the connecting element. Preferably, projections and recesses that interact with one another are arranged on the connecting element and the lid, which enable a snap-in or locking connection between the lid and the connecting element.In this way, the container can be securely closed, with the lid being held to the connecting element by the hinge strip even when opened. The connecting element can be made of thermoplastic material or fiber material, for example. Compression molding of pulp or the fiber casting process is also suitable for production from fiber material, whereby the strength can be increased by suitable coating. A biodegradable thermoplastic can, in particular, contain starch and, as additional components, glycerin and sorbitol as plasticizers. In particular, 11-15% by weight of glycerin and 6-9% by weight of sorbitol, based on the total weight of the material in the dried state, have proven advantageous. The starch concentration is between 56 and 63% by weight. Other components can be fillers in concentrations of 16-24% by weight.The fillers can be talc, chalk, bentonite, mustard seed hulls, organic fibers, or waste materials. This material is excellently suited for processing in a twin-screw extruder and injection molding. It can be made moisture-resistant and extremely hard with appropriate coatings. However, this material is generally too brittle to serve as a flexible film hinge to connect the resealable lid to the container. For this reason, the lid is attached with a flexible hinge strip made of fiber material that is glued to the container.

[0016] In practice, the hinge strip can be glued to the lid. However, it is also possible for the hinge strip to be connected to the lid in another way. In particular, the lid can be pivotally attached to the hinge strip. This is particularly useful in cases where the lid can be screwed to the connecting element. The hinge strip can also be manufactured in one piece with the lid from fiberglass casting, with a weakened zone, e.g., a bead, ensuring that the hinge strip can be easily bent.

[0017] In practice, the hinge strip may have at least a second section glued to the container, forming a sealing section and perforated so that it separates along the perforation when the lid is opened. This sealing section serves as a tamper-evident seal. The unbroken perforation allows a buyer to recognize that the goods inside the container are in their original packaging. If the material of the sealing section is sufficiently thin, a tamper-evident seal is unnecessary. An opened container can be easily distinguished from an unopened container by the destruction of the sealing section by tearing it open.

[0018] The lid and the container can be shaped in such a way that, when the lid is closed, sections of the lid and the container engage behind one another in a form-fitting manner. When the lid is opened, these sections deform elastically and build up resistance to opening. In this way, the lid snaps into the opening and remains in its closed position when the user pushes it into this position. Only when an opening force is manually applied are the engaging sections of the lid and container deformed, allowing the lid to be opened further. For example, the opening of the container can be surrounded by an edge onto which a circumferential bead is formed, which points outwards. The lid can also have an edge with a bead, but which points inwards and engages behind the bead on the container when the container is closed.If the opening is round, the rim is cylindrical and extends along the central axis of the opening. If the opening deviates from the round contour, the rim follows the contour of the opening.

[0019] As mentioned above, the container can have an external thread in the area of ​​the opening and the lid can have an internal thread that can be screwed onto the external thread. In this case, the hinge strip is rotatably connected to the lid. To achieve a rotatable connection, an eyelet can be formed on the hinge strip, through which a section of the lid with a circular cross-section extends. For example, a T-shaped pin can be formed on top of the lid, which is surrounded by the eyelet. Either the hinge strip has a certain elasticity so that it can be pulled over the edge of the T-shaped pin and contracts elastically. Or the T-shaped pin is first pushed through the eyelet and then connected to the lid in a form-fitting or material-fitting manner.

[0020] To increase the tightness of the container, the coating may contain at least one of the following components: cellulose fibers, casein, whey, agar agar, psyllium husks SiO2, linseed oil, carnauba wax, beeswax.

[0021] Cellulose fibers, especially very short microfibrils, are suitable for increasing the tightness and gas impermeability of the container. Fillers and swelling natural ingredients such as casein whey, agar agar, and psyllium husks also increase the tightness. Silicon oxide gives the container considerable strength.

[0022] Lipids such as oils and waxes also increase the gas and liquid resistance of the container material. All selected components are biodegradable or bioinert, so the container according to the invention decomposes after a short time without leaving any harmful residues.

[0023] If the reinforcement in the area of ​​the container opening is formed by a connecting element made of thermoplastic material, this material must also be biodegradable, particularly water-soluble and / or compostable. Such properties can be achieved with the starch-based thermoplastics described above. A lid or connecting element made of fiber material must, of course, also be biodegradable, particularly water-soluble and / or compostable.

[0024] The connecting element can be connected to the container by a material fit or a form fit. The thermoplastic material can develop adhesive properties when moistened with water or a solvent and can be glued to the fiber material of the container. It is also possible for the connecting element to have a thin connecting wall with perforations. During the manufacturing process for the fiber-cast container, the connecting wall is held close to the wall of the suction mold so that fiber material sucked in by the suction mold also settles in the area of ​​the connecting wall and protrudes through the perforations. This allows an excellent, intimate bond to be achieved between the connecting element and the fiber material of the container. The connecting wall can surround the opening so that a form-fitting connection is achieved along the entire circumference of the opening.If the connecting element is made of fiber material, it can simply be glued to the container.

[0025] The invention further relates to a method for producing a container having at least one opening and a lid for closing the opening, which lid is connected to the container via an elastically deformable hinge. The method comprises the following method steps: Suction of fiber material from a pulp through a suction mold and compacting the fiber material deposited on the inner wall of the suction mold to form the container; Dewatering and drying the container; Coating the container; Forming the lid from fiber material; Attaching the lid to a flexible hinge strip made of fiber material; Gluing the hinge strip to the container.

[0026] The lid can be attached to the hinge strip directly during molding. For example, a pivoting section of the lid can be manufactured in one piece with a section to be glued to the container in the opening area via a weakened line, e.g., a bead. The various components of the container can be manufactured and joined together efficiently and cost-effectively.

[0027] In practice, the connecting element made of biodegradable or bio-inert material can be arranged on the container in the area of ​​the opening, whereby the hinge strip is glued to the container in the area of ​​the connecting element.

[0028] The lid and the reinforced area of ​​the container's opening can form a snap-in or locking connection, allowing the container to be closed. When open, the lid is connected to the connector via the hinge strip. When closed, sections of the lid and connector engage behind each other, so that to open, they must be forced apart until they snap open.

[0029] As mentioned above, the hinge strip can be glued to the lid.

[0030] Furthermore, the hinge strip can have at least a second section bonded to the container, namely a sealing section, which is perforated and separated along the perforation when the lid is opened. The hinge strip thus forms a tamper-evident seal.

[0031] Finally, the container can have an external thread in the area of ​​the opening and the lid can have an internal thread that can be screwed onto the external thread, whereby the lid is rotatably connected to the hinge strip.

[0032] Further practical embodiments and advantages of the invention are described below in conjunction with the drawings.

[0033] shows a side exploded view of a container according to the invention.

[0034] shows a three-dimensional exploded view of the container from above.

[0035] shows the front view of the container from the and 2.

[0036] shows the view of the container cut along section line IV – IV.

[0037] shows another embodiment of the hinge strip for the container.

[0038] shows a front view of the container with the hinge strip.

[0039] shows a side view of the container with the hinge strip.

[0040] shows a corresponding view of the container with the lid swung open.

[0041] shows a bottom view of the lid of the container with another embodiment of the hinge strip.

[0042] shows a corresponding sectional view of the container with the hinge strip.

[0043] shows a corresponding view of the container with the lid swung open.

[0044] shows a three-dimensional exploded view of another embodiment of a container with a lid.

[0045] shows an enlarged side view of the container in the closed state.

[0046] shows an enlarged view of the lid and the upper section of the container from Figures 1 and 13 in a sectional view.

[0047] shows another embodiment of a container with a lid made of fiber material. Description of the embodiments

[0048] A first embodiment of the container is shown in Fig. 1. Fig. 1 shows an exploded view of the components of a container used to package chewing gum. The container consists of a container 1 consisting of a hollow body made of molded fiber and open at the top. The opening 2 of the container 1 is surrounded by a rim 3 which extends essentially vertically upwards and is connected to a connecting element 4. The connecting element 4 consists of a biodegradable or bioinert material. The material can be a thermoplastic, in particular a starch-based thermoplastic with the components described above. This connecting element 4 made of thermoplastic can be produced by injection molding and can be connected essentially tightly to the rim 3 of the container 1. The connecting element 4 can be closed with a lid 5. The lid 5 is made of fiber material.In particular, molded parts made from pulpy fiber pulp using the compression molding process can exhibit the required strength and dimensional accuracy to form the connecting element 4 or the cover 5. However, the cover 5 and connecting element 4 can also be manufactured by suctioning in aqueous pulp using the fiber molding process. After production, they can be consolidated by pressing and reinforced with a coating.

[0049] A flexible hinge strip 6 made of paper, in particular kraft paper, is provided, which pivotally connects the lid 5 to the container 1 and in particular to the connecting element 4 of the container 1. The hinge strip 6 has a main section 7 extending parallel to the top of the lid 5, which is glued to the top of the lid 5. On the left-hand side, a side section 8 of the hinge strip 6 can be seen, which is angled downwards at a right angle. This side section 8 is glued to the connecting element 4 of the container 1. The strip has the necessary flexibility to form a film hinge. The bonding ensures a secure connection between the container 1 and the lid 5. The container 1 is structurally reinforced several times in the area of ​​its opening 2, where the bonding to the hinge strip 6 takes place.Firstly, the container contour has a three-dimensional contour with several curved radii in the container wall, which reinforce the container wall. Secondly, the connecting element 4 is arranged on the edge 3 surrounding the opening 2 and structurally reinforces the opening area.

[0050] It can be seen that the width of the main section 7 of the hinge strip 6 is greater than the width of the side section 8. The main section 7 of the hinge strip 6 has a contour corresponding to the top side of the lid 5 and is glued to the top side of the lid 5. In the same way, the inside of the annular connecting element 4 can be glued to the rim 3 of the container 1. The outside of the connecting element 4 can be glued to the side section 8 of the hinge strip 6.

[0051] The articulated connection between the lid 5 and the connecting element 4 is essentially created by the strip-shaped side section 8 of the hinge strip 6. If the main section 7 of the hinge strip 6 covers the entire surface of the lid 5, the hinge strip 6 can be printed and display the product information. However, it is also possible for the main section 7 of the hinge strip 6 not to extend over the entire top side of the lid 5.

[0052] Figures 4 and 4 show a front view and a sectional side view of the container from Figures 1 and 2. It can be seen that the lid 5 has a flat edge and, in the center, a downwardly projecting circular section 11. The circular section 11 of the lid 5 can form a locking connection or snap connection with the inner circumference of the annular connecting element 4. In particular, it can be seen in Figure 1 that the side section 8 of the hinge strip 6 is glued to the outside of the connecting element 4. In this way, the lid 5 is securely held to the connecting element 4 of the container after opening.

[0053] A second embodiment of the hinge strip 6' can be seen in Figures 1 to 8. As in the previously described embodiment, it has a main section 7 and a side section 8. The side section 8 is still in the same plane as the main section 7 and is not bent over by 90° as in Figure 1. The hinge strip 6' has two lateral sealing sections 9 which are connected via a perforation 10, i.e., a line along which the connection between the sealing section 9 and the main section 7 is partially severed. As can be seen in Figures 1 and 7, the sealing sections 9 are glued to the connecting element 4 in the region of the side of the container 1. When the lid 5 is opened, the sealing sections 9 separate from the main section 7 of the hinge strip 6 along the perforation 10. This can be seen in Figure 2, which shows the opened lid 5.The sealing strips 9 therefore represent tamper-evident seals which indicate that the container has been opened.

[0054] This shows a bottom view of the lid 5 with a further embodiment of the hinge strip 6". The main section 7' ​​of the hinge strip 6" has the shape of an eyelet, i.e., it has a circular recess in its center, through which the circular projection of the lid 5 extends. The main section 7 of the hinge strip 6" is thus glued to the surface of the lid 5 that faces downwards when the container () is closed, with its side section 8 still being glued to the upper edge of the container 1. The hinge strip 6" holds the visible, opened lid 5 firmly to the container 1.

[0055] If the cover has a screw thread (not shown) that can be screwed to the connecting element, the adhesive bond between the hinge strip 6" and the cover 5 can be omitted. In this case, the projecting circular section 11 of the cover 5 can have a groove or slot on its circumference into which the ring- or eyelet-shaped main section of the hinge strip fits. The cover 5 is thus rotatably connected to the hinge strip 6".

[0056] - 14 show a further embodiment of the container. It can be seen that the container 1' has pronounced profiles in the region of the opening 2'. In particular, in the region of the opening 2', a short, cylindrical jacket-shaped rim 3' can be seen, at the upper end of which an annular bead 12 is formed. The bead 12 is located on the outside of the rim 3' and projects outwards. In the sectional view of the sectional view, the outwardly projecting bead 12 on the rim 3' is shown enlarged around the opening 2'. The lid 5' has a substantially flat cover surface 13 and an adjacent, cylindrical jacket-shaped rim 14, onto which an inwardly projecting bead 15 is formed. This bead 15 engages behind the outwardly projecting bead 12 of the rim 3' of the container and causes the lid to latch onto the rim 3' of the opening 2'. The container 1' already has considerable rigidity due to its complex shape.The edge 3' and the bead 12 formed thereon form an additional structural reinforcement of the wall of the container 1'.

[0057] In this embodiment, the hinge strip 6"' has a main section 7" on which a side section 8' for forming the film hinge and a sealing section 9' for forming the tamper-evident seal are arranged. The hinge strip 6"' is made of sufficiently thin material so that perforation of the sealing section 9' is unnecessary. The user can also swap the function of the side section 8' and the sealing section 9' and use the sealing section 9' as a film hinge if the side section 8' has been torn to open the container 1'. Both the side section 8' and the sealing section 9' of the hinge strip 6"' are glued to the structurally reinforced area of ​​the container 1' near the opening 2'.

[0058] The figure shows a flat container 21 to which a lid 25 made of fiber material is hingedly attached. The container 21 has a curved edge 23 in the region of the opening 22 with several steps in the container wall. The radially outermost step surrounds the lid 25 when it closes the opening 22 of the container 21. The hinge strip 26 is glued integrally to the lid 25 and is bonded to an adhesive surface 27 of the container 21. Together with the base of the container 21, which runs parallel to the closed lid 25, the lid 25 encloses a flat cavity. In this embodiment, both the container 21 and the lid 25 can be manufactured either by compression molding from pulp slurry or by fiber casting from aqueous pulp. Here, too, the lid 25 and container 21 can have cooperating undercuts (not shown) that hold the lid 25 in the closed position.

[0059] The features of the invention disclosed in the present description, the drawings, and the claims may be essential, both individually and in any combination, for the realization of the invention in its various embodiments. The invention is not limited to the described embodiments. It may be varied within the scope of the claims and taking into account the knowledge of the person skilled in the art.

[0060] 1,1' container 2,2' opening 3,3' rim 4 connecting element 5,5' lid 6,6',6",6"' hinge strip 7,7',7" main section 8,8' side section 9,9' sealing section 10 perforation 11 circular section 12 bead 13 cover surface 14 rim 15 bead 21 container 22 opening 23 rim 24 base 25 lid 26 hinge strip

Claims

A container comprising a container (1,1',21) having at least one opening (2,2',22) and a lid (5,5',25) for closing the opening (2,2',22), which lid is connected to the container (1,1',21) via an elastically deformable hinge. The container (1,1',21) is made of fibrous material and has a biodegradable or bioinert coating, the lid (5) is made of fibrous material, and a flexible hinge strip (6,6',6",6"',26) made of fibrous material, which is fastened to the lid (5), is glued to the container (1,1',21). The container (1,1',21) has a structural reinforcement in the region of the opening (2), and the hinge strip (6,6',6",6"',26) is glued to the container (1,1',21) in the region of the structural reinforcement. Container according to claim 1 or 2, characterized in that the hinge strip is attached to the lid (5) as follows: it is glued to the lid (5); it is made in one piece with the lid (5); it is made in one piece with the lid (5) and connected to a movable portion of the lid via a bead. Container according to claim 1 or 2, characterized in that the structural reinforcement is selected from at least one of the following: a connecting element (4) made of biodegradable or bio-inert material, a region with increased wall thickness, reinforcing profiles, in particular beads or ribs, in the wall of the container, coatings of the container wall in the region of the opening (2). Container according to one of the preceding claims, characterized in that, in the closed state of the lid (5'), sections (15, 12) of the lid (5') and of the container (1') engage behind one another in a form-fitting manner, which sections deform elastically when the lid (5') is opened and build up a resistance to opening. Container according to claim 5, characterized in that the hinge strip (6', 6"6"') has at least one sealing section (9, 9') glued to the container (1, 1'), which is separated when the lid (5, 5') is opened. Container according to one of claims 1 to 4, characterized in that the container (1) has an external thread in the region of the opening (2) and the lid (5) has an internal thread that can be screwed onto the external thread, wherein the lid (5) is rotatably connected to the hinge strip. Container according to claim 6, characterized in that an eyelet is formed on the hinge strip (6, 6', 6"), through which a section (11) of the lid (5) with a circular cross-section extends. Container according to one of the preceding claims, characterized in that the coating contains at least one of the following components: cellulose fibers, casein, whey, agar agar, psyllium husks, SiO2, linseed oil, carnauba wax, beeswax. Container according to one of the preceding claims, characterized in that the connecting element (4) has a connecting wall surrounding the opening (2) with openings through which the fiber material of the container (1) extends. A method for producing a container with a container (1, 1', 21) having at least one opening (2, 2', 22) and a lid (5, 5', 25) for closing the opening (2, 2', 22), which lid is connected to the container (1) via an elastically deformable hinge, the method comprising the following method steps: compacting fiber material in a mold to form the container (1, 1', 21); molding or attaching a structural reinforcement in the region of the opening (2) of the container; dewatering and drying the container (1, 1', 21); coating the container (1, 1', 21); producing the lid (5, 5', 25) from fiber material; fastening the lid (5, 5', 25) by means of a flexible hinge strip (6, 6', 6", 26) made of fiber material by gluing the hinge strip (6, 6', 6", 6"', 26) to the container (1). Method according to claim 10, characterized in that the structural reinforcement of the container and the lid are formed from fiber material in such a way that, in the closed state of the lid (5), sections of the lid (5) and of the container (1) engage behind one another in a form-fitting manner, which sections deform elastically when the lid (5) is opened and build up a resistance to opening. Method according to claim 11, characterized in that a connecting element (4) made of biodegradable or bioinert material is arranged on the container (1) in the region of the opening (2), and in that the hinge strip (6, 6', 6") is glued to the container (1) in the region of the connecting element (4). Method according to claim 10, 11 or 12, characterized in that the hinge strip (6, 6', 6") is connected to the lid (5) as follows: it is manufactured in one piece with the lid (5) from fiber material; it is glued to the lid (5). Method according to claim 13, characterized in that the hinge strip (6, 6', 6", 6"') has at least one sealing section (9, 9') glued to the container (1), which is severed when the lid (5) is opened. Method according to claim 10, 11 or 12, characterized in that the container (1) has an external thread in the region of the opening (2) and the lid (5) has an internal thread which can be screwed onto the external thread, wherein the lid (5) is rotatably connected to the hinge strip.