EP3883865A1 - Seal for a single serve capsule - Google Patents

Seal for a single serve capsule

Info

Publication number
EP3883865A1
EP3883865A1 EP19808792.6A EP19808792A EP3883865A1 EP 3883865 A1 EP3883865 A1 EP 3883865A1 EP 19808792 A EP19808792 A EP 19808792A EP 3883865 A1 EP3883865 A1 EP 3883865A1
Authority
EP
European Patent Office
Prior art keywords
seal
portion capsule
capsule
gelatin
base element
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
EP19808792.6A
Other languages
German (de)
French (fr)
Other versions
EP3883865B1 (en
Inventor
Marc KRÜGER
Günter EMPL
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
GCS German Capsule Solution GmbH
Original Assignee
GCS German Capsule Solution GmbH
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=68654506&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP3883865(A1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by GCS German Capsule Solution GmbH filed Critical GCS German Capsule Solution GmbH
Publication of EP3883865A1 publication Critical patent/EP3883865A1/en
Application granted granted Critical
Publication of EP3883865B1 publication Critical patent/EP3883865B1/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents
    • B65D85/8064—Sealing means for the interface with the processing machine

Definitions

  • the present invention is based on a portion capsule for preparing a beverage in a beverage production machine, the portion capsule having a liquid-tight base element with a cavity for receiving a beverage raw material and a capsule lid closing the cavity.
  • portion capsules are known from the prior art.
  • the documents DE 10 2012 223 291 A1, DE 10 2013 215 274 A1, DE 10 2012 109 186 A1 and DE 10 2012 105 282 A1 disclose portion capsules for portion capsule machines each having a rigid or semi-rigid base element which has a cavity for receiving a raw beverage material , such as roasted coffee granules, instant coffee, chocolate powder, ground tea, milk powder or the like, the cavity being closed after the portion capsule has been filled with a capsule lid.
  • the base element is designed to be gas and liquid-tight.
  • the base element must withstand comparatively high mechanical forces during the production of the beverage, since the extraction liquid is introduced into the cavity under high pressure and at high temperature in order to produce the beverage under interaction with the raw beverage material.
  • base elements made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) and / or polyethylene terephthalate (PET) and / or metal, in particular aluminum, are therefore used in the portion capsules known from the prior art, since such Base elements are inexpensive to manufacture, mechanically stable and gas and liquid tight.
  • PE polyethylene
  • PP polypropylene
  • PVC polyvinyl chloride
  • PET polyethylene terephthalate
  • metal in particular aluminum
  • the object is achieved with a portion capsule for preparing a beverage in a beverage production machine, the portion capsule having a base element with a flange and with a cavity for receiving a beverage raw material and a capsule cover closing the cavity, the capsule cover being fastened to the flange and a seal is provided on the surface opposite the capsule cover, which is provided in part plastically.
  • the object is further achieved with a portion capsule for preparing a drink in a beverage production machine, the portion capsule having a base element with a flange and with a cavity for receiving a raw beverage material and a capsule cover closing the cavity, the capsule cover being fastened to and on the flange the surface opposite the capsule cover is provided with a seal which is provided in a partially elastic manner.
  • the portion capsule which is used, for example, for beverage production.
  • coffee or espresso or tea is made with the portion capsule.
  • the portion capsule has a base element with a base and side walls that span a cavity into which the raw beverage material is filled. The cavity is then closed with a capsule lid. To make the drink, the portion capsule is flowed through with hot water, for example.
  • the material from which the seal and the base element are made preferably differ.
  • the base element is preferably made of a metallic material, in particular aluminum.
  • the portion capsule preferably has a side wall and a bottom.
  • the side wall is preferably conical or cylindrical and in particular connected in one piece with the Bo.
  • this egg egg, in particular annular, flange which is preferably integrally connected to the side wall and at an angle, in particular an obtuse angle, is seen before this.
  • a capsule cover is generally arranged, in particular seals, which seals a flea space in the base element, in which a raw beverage material is located.
  • the seal is provided on the side of the flange opposite the capsule cover.
  • the seal is provided partially plastic and / or partially elastic. Once deformed, the seal does not remain in the deformed shape and / or does not return to its original shape. For example, the seal deforms partially plastic when the brewing chamber is closed. This achieves a good sealing effect and the sealing effect remains at least partially even if the closing pressure of the chamber parts decreases.
  • Partly plastic in the sense of the invention means that the impression that the brewing chamber presses into the seal only partially reforms.
  • the reshaping is preferably 10 -40% of the maximum impression generated by the brewing chamber.
  • the deviation of the cross section of the seal after deformation and reshaping is between 10 and 40% based on the cross section of the seal before the deformation.
  • the seal is therefore partially elastic and partially reforms after the pressure from the brewing chamber has decreased.
  • the seal thus differs from a rubber-elastic seal that will fully reform when the pressure in the brewing chamber subsides.
  • the seal also differs from a plastically deformable seal, in which the maximum deformation of the seal is at least essentially retained.
  • the seal has a biopolymer. It is preferably made entirely of a biopolymer.
  • Biopolymers according to the present invention are polymers which are obtained from renewable raw materials and / or are biodegradable, in particular completely biodegradable. The production of these biopolymers can include extensive cleaning steps and / or modification steps.
  • mixtures of two or more biopolymers can also be used, mixtures of two or more biopolymers of different classes also being suitable, for example gelatin and polysaccharides or gelatin and cellulose or polysaccharides and cellulose or also gelatin and polysaccharides and cellulose.
  • These materials have the further advantage that the base elements obtained therefrom can be produced vegan and / or kosher and / or halal.
  • At least part of the seal preferably consists at least partly of gelatin, polysaccharides, polylactides, celluloses or mixtures of two or more of these biopolymers.
  • the proportion of biopolymer in the material from which the seal is made is preferably> 30% by weight, preferably> 40% by weight, even more preferably> 50% by weight and most preferably> 55% by weight .
  • the material preferably has glycerol and water. This mixture preferably has a crosslinking agent.
  • a tannin for example, is suitable as a crosslinking agent.
  • the seal can also be made entirely of biopolymer, in particular gelatin.
  • At least part of the seal preferably consists at least partially of gelatin and / or polysaccharide and / or cellulose.
  • the gelatin and / or polysaccharide and / or cellulose content of the material from which at least a portion of the seal is produced is preferably> 70% by weight, preferably> 80% by weight, even more preferably> 90% by weight % and most preferably> 95% by weight.
  • the seal can also consist of biopolymer.
  • At least part of the seal preferably consists at least partially of gelatin and / or hydroxypropylmethyl cellulose and / or pullulan.
  • the gelatin and / or hydroxypropylmethyl cellulose and / or pullulan content of the material from which at least a portion of the seal is produced is preferably> 70% by weight, preferably> 80% by weight, even more preferably> 90% by weight and most preferably> 95% by weight.
  • the seal can also consist entirely of biopolymer.
  • Gelatin is preferably an animal protein, preferably a mixture of substances.
  • the main constituent is preferably denatured or hydrolyzed collagen, which can be produced from the connective tissue of various animal species, especially pigs and cattle, but also fish and poultry.
  • the gelatin can also be vegetable gelatin, which are mostly polysaccharides.
  • the gelatin used is preferably, in particular, gelatin of the type used in the field of pharmaceutical technology for the production of hard gelatin or soft gelatin capsules.
  • the gelatin can be foamed. This foaming can be done with a gas, especially air.
  • the gelatin in the seal preferably has a water content of 1-50% by weight, preferably 6-20% by weight, more preferably 9-18% by weight, much more preferably 9-16% by weight.
  • the gelatin as used for the production of the seal can preferably have a Bloom value of 10-350, preferably 50-300, particularly preferably 150-280 Bloom or 180-280.
  • the gelatin is preferably hardened and / or made water-insoluble.
  • the gelatin is hardened and / or temporarily water-insoluble or temporarily moisture-resistant.
  • a temporarily water-insoluble or temporarily moisture-resistant gelatin is understood to mean, for example, gelatin which, after use of the capsule and / or under environmental influences, for example moisture, solar radiation and / or the influence of microorganisms, after a certain time, for example after 1-28 days, in particular 1-14 Days before given 1-7 days, particularly preferably 1-5 days, shows signs of decomposition.
  • Suitable for this are, for example, alginic acid-alkylene glycol derivatives, alginic acid oxidized with sodium peroxide, amylopectin dialdehydoctenyl succinate, bisacryloylurea,
  • Tris (sulfatetyl) sulfonium lnnerethersalze ethylene glycol, Ethoxymethylisocyanat, formalin (formaldehyde, Fluorsulfonylazetophenon, glycerin, gum arabic, for example, oxidized with periodic acid, glutaraldehyde, Flydroxytetramethylhydrooxazoniumchlorid, lactic acid, toluenesulfonate methodological, mono-lO-bromethylmaleat, Methylendiethansulfonamid, Methansulfonklaklarehalo genalkoholester , Mercaptoethylaziridin, Methylglucanopyranosid, Naphthalindisulforylfluorid, pectic acid, peroxydisulfate, phenol formaldehyde resins, Phenyltriazinidinylsilan, Phloroformalin, phospho
  • Polysaccharide is the main component of plant cell walls.
  • the polysaccharide is preferably provided in the form of cellulose, for example methyl cellulose and / or hydroxypropyl methyl cellulose and / or cellulose acetate. Other cellulose-based compounds are also conceivable.
  • the polysaccharide can be provided in the form of pullulan.
  • the polysaccharide can be made available as a mixture of several substances.
  • at least a portion of the base element and / or the capsule lid can consist entirely or partially of cellulose, for example methyl cellulose and / or hydroxypropylmethyl cellulose and / or cellulose acetate. Other cellulose-based compounds are also conceivable.
  • celluloses also include their derivatives, in particular cellulose ethers, which are formed by partial or complete substitution of the hydrogen atoms of the hydroxyl groups in the cellulose.
  • These cellulose ethers can preferably be selected from the group consisting of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl ethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl hydroxyethyl cellulose and carboxymethyl hydroxyethyl cellulose.
  • mixtures of two or more of these cellulose ethers can also be used.
  • Hydroxypropylmethyl cellulose is very particularly preferred.
  • a correspondingly suitable hydroxypropylmethyl cellulose is also used, for example, in the manufacture of vegan hard capsules in the field of pharmaceutical technology.
  • the hydroxypropylmethylcellulose in the seal preferably has a water content of 1-23% by weight, more preferably 1.5-20% by weight, much more preferably 2.0-15% by weight and most preferably 2, 5-10% by weight.
  • plastic based on gelatin and / or polysaccharide and / or cellulose, in particular plastic based on gelatin and / or hydroxypropylmethyl cellulose and / or pullulan, is preferably used below.
  • the biopolymer in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is preferably provided as a film / film, which is then shaped, in particular deep-drawn, in order to obtain the seal.
  • the biopolymer is hardened, especially under the influence of cold.
  • the seal obtained in this way can be arranged on the base element, in particular on its flange.
  • a shape of the seal to be produced is preferably immersed one or more times in a liquid biopolymer, in particular a liquid plastic mass, until the desired material thickness is reached.
  • the biopolymer is filled into a bead, which forms a flange on the outer edge of the flange and the capsule body, for example with a nozzle, preferably while the portion capsule is rotating. It is very particularly preferred for at least a portion of the base element, in particular the flange before, to be cooled during and / or after the application of the biopolymer, in particular the gelatin.
  • the biopolymer can be applied with a lid film after the portion capsule has been closed. However, it is also possible to provide the base element with the seal and then to fill and close the base element.
  • the biopolymer is cured, for example, by means of drying, heat and / or cold treatment and / or crosslinking, for example by means of IV or UV radiation, until the biopolymer, in particular the plastic, has solidified to such an extent that it is used together with the base element the seal, especially in further production.
  • a seal with several layers can be created.
  • the mold can be immersed in various liquid biopolymers one after the other.
  • the layers that are created by immersion in various liquid biopolymers can differ in terms of their optical properties, their UV resistance, hardness, deformability and / or tightness to liquids.
  • a layer in particular a layer which has gelatin, is preferably foamed. Foaming can be done with a propellant, for example.
  • This layer is preferably combined with a raft mediator layer, which particularly preferably has gelatin.
  • This flow mediator layer particularly preferably improves the flow between the foamed layer and a metal base element, in particular an aluminum have the base element.
  • a further layer can be a protective protective layer which, for example, prevents a bipolymer, in particular a gelatin, layer from softening and / or swelling.
  • the seal very particularly preferably has a foamed gelatin layer and a raft mediating layer which improves the rafting with an aluminum base element and a protective layer which preferably at least prevents softening and / or swelling, in particular of the foamed layer.
  • the foamed layer preferably has a greater layer thickness than at least one other, preferably one of the other two layers.
  • the part of the surface of the base element, in particular the collar / flange, which comes into contact with the biopolymer, in particular the gelatin is pretreated in order to improve the flow between the biopolymer and the base element, in particular a base element made of aluminum.
  • a pretreatment can be, for example, a plasma treatment and / or a treatment with acid.
  • the shape is an immersion form of the seal, the immersion form having a contour with an immersion area which is immersed in the liquid biopolymer.
  • the immersion area preferably corresponds to a negative of the contour of the seal to be produced.
  • the dipping area of the contour is covered with a layer of the biopolymer.
  • the mold can be removed from the liquid biopolymer.
  • the layer of the biopolymer that covers the contour of the mold can solidify and dry.
  • a corresponding process is known, for example, in the field of pharmacy as a Colton process for the production of pharmaceutical capsules.
  • the coated shape can be controlled in one or more dimensions during solidification and / or drying in order to specifically adjust the design of the base element, in particular the shape and / or the thickness.
  • Another object of the present invention is a method for producing the portion capsule according to the invention, in which a mold is immersed in a biopolymer bath and a film is formed on the surface of the mold, which is then cooled and / or dried. Finally, the portion capsule is detached from the mold and cut if necessary.
  • the biopolymer bath preferably has gelatin.
  • the outer edge of the flange is preferably crimped.
  • the base element is preferably made of metal, in particular aluminum.
  • Another object of the present invention is a method for producing the sealing device of a portion capsule, in which a mold is immersed in a biopolymer bath and a film is formed on the surface of the mold, which is then cooled and / or dried.
  • This object of the present invention relates to a method for producing a device of a portion capsule, in which a mold is immersed in a biopolymer bath, on which then adheres a biopolymer film, which solidifies there and can then be used further. If necessary, the film is removed from the mold.
  • the shape is preferably the negative shape of the seal to be produced.
  • Another object of the present invention is a method for producing a porti on capsule, in which the gelatin is applied in liquid or pasty form to the flange of the base element and hardens there.
  • the base element of the portion capsule has the shape or surface to which a film of biopolymer adheres and solidifies there and then forms the seal for the portion capsule.
  • the side of the flange on which the film is applied is preferably oriented so that gravity presses the film against the flange and the film solidifies there.
  • the film can be applied in that an application means and the base element move relative to one another, in particular rotate. Multiple layers can be applied.
  • Another object is a method for producing the seal of a portion capsule, in which a biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is provided as a film / film, which is then shaped, in particular thermoformed and in which the shaped film is used as a seal for the portion capsule.
  • a biopolymer in particular the plastic based on gelatin and / or polysaccharide and / or cellulose
  • the statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa.
  • the seal can be connected to the base element, for example by gluing or sealing.
  • Another object of the present invention is a method for producing the seal of a portion capsule, in which the biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is liquefied in order to then be poured and / or sharpened, to get the desired shape of the seal.
  • the biopolymer in particular the plastic based on gelatin and / or polysaccharide and / or cellulose
  • the liquid biopolymer in particular the gelatin, liquefied or already provided in liquid form and then poured and / or injected into a mold and thus brought into the shape of the seal.
  • the biopolymer is preferably applied to the flange of the portion capsule and cures there.
  • At least a portion of a base element of the portion capsule is preferably cooled before, during and / or after the application of the biopolymer.
  • Another object of the present invention is a method for producing a beverage with a portion capsule according to the invention, in which the portion capsule, in particular the flange between two closing brewing chamber elements is clamped and the seal is deformed and the deformation then only partially reforms when the Brewing chamber elements can be opened again.
  • the seal is deformed when the brewing chamber elements are closed.
  • the yield strength of the biopolymer is exceeded so far that the deformation is partially plastic. This results in a very good sealing effect and the ejection of the portion capsule from the beverage manufacturing apparatus is supported.
  • Figure 1 shows a schematic sectional view of a portion capsule according to an exemplary embodiment of the present invention.
  • FIG. 1 shows a schematic sectional view of a portion capsule 1 for the preparation of a beverage in a beverage production machine (not shown) according to an exemplary embodiment of the present invention.
  • the portion capsule 1 has a cup-shaped base element 2 and a capsule cover 4 fastened to a peripheral flange 7 of the base element 2.
  • the capsule cover 4 is in particular welded or glued to the flange 7.
  • the base element 2 consists of a bottom area 6 and a wall area 8, which are preferably provided in one piece.
  • a cavity 3 is formed within the base element 2, which is filled with raw beverage material (not illustrated for reasons of clarity) and which is closed by the capsule cap 4.
  • a seal is arranged on the side of the flange opposite the capsule cover (4) which deforms when the brewing chamber is closed.
  • the seal is preferably at least partially made of gelatin.
  • the sealing material is applied to the flange in liquid form and hardens there, in particular by cooling the sealing material.
  • the base element of the portion capsule is preferably rotated through 180 ° so that gravity presses the liquid sealing material against the flange.
  • the base element in particular the flange, is preferably cooled before the sealing material is applied.
  • the deformation is only partially se back. After opening the brewing chamber, a deformation remains in the seal.
  • the seal partially resiliently forms, but does not assume its original shape.
  • the portion capsule 1 is inserted into a brewing chamber in use in a beverage manufacturing machine.
  • the brewing chamber is then closed, for example by moving two brewing chamber elements relative to one another.
  • the capsule cover 4 and the base region 6 are perforated one after the other or simultaneously and extraction liquid under pressure is introduced into the cavity 3 through the perforation openings in the capsule cover 4.
  • the interaction between the extraction liquid and the raw beverage material results in the desired beverage, which leaves the portion capsule 1 through the perforation openings in the base region 6 and is supplied to a beverage container. Any particles of the raw beverage material are filtered out of the beverage and retained in the portion capsule 1 by the filter medium 9.
  • the seal 11 is deformed, ie after brewing, traces of the brewing chamber remain visible in the sealing material, but this is less than the deformation of the seal when the brewing chamber is closed.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
  • Closures For Containers (AREA)

Abstract

The invention relates to a single serve capsule (1) for preparing a beverage in a beverage preparation machine, said single serve capsule (1) having a liquid-tight base element (2) having a cavity (3) for receiving a beverage raw material and a capsule cover (4) sealing the cavity (3).

Description

Dichtung einer Portionskapsel  Portion capsule seal
Stand der Technik State of the art
Die vorliegende Erfindung geht aus von einer Portionskapsel zur Zubereitung eines Getränks in einer Getränkeherstellungsmaschine, wobei die Portionskapsel ein flüssigkeitsdichtes Basisele ment mit einem Hohlraum zum Aufnehmen eines Getränkerohmaterials und einen den Hohl raum verschließenden Kapseldeckel aufweist. The present invention is based on a portion capsule for preparing a beverage in a beverage production machine, the portion capsule having a liquid-tight base element with a cavity for receiving a beverage raw material and a capsule lid closing the cavity.
Solche Portionskapseln sind aus dem Stand der Technik bekannt. Beispielsweise offenbaren die Druckschriften DE 10 2012 223 291 A1 , DE 10 2013 215 274 A1 , DE 10 2012 109 186 A1 und DE 10 2012 105 282 A1 Portionskapseln für Portionskapselmaschinen aufweisend jeweils ein starres oder halbstarres Basiselement, das einen Hohlraum zur Aufnahme eines Getränkeroh materials, wie Kaffeeröstgranulat, Instantkaffee, Schokoladenpulver, Teeverschnitt, Milchpulver oder dergleichen, umschließt, wobei der Hohlraum nach dem Befüllen der Portionskapsel mit einem Kapseldeckel verschlossen wird. Damit das Getränkerohmaterial bei der Lagerung und beim Transport der Portionskapsel sein Aroma nicht verliert, ist das Basiselement gas- und flüs sigkeitsdicht ausgebildet. Zudem muss das Basiselement bei der Herstellung des Getränks ver gleichsweise hohen mechanischen Kräften standhalten, da die Extraktionsflüssigkeit unter ho hem Druck und mit hoher Temperatur in den Hohlraum eingeleitet wird, um unter Wechselwir kung mit dem Getränkerohmaterial das Getränk zu erzeugen. Such portion capsules are known from the prior art. For example, the documents DE 10 2012 223 291 A1, DE 10 2013 215 274 A1, DE 10 2012 109 186 A1 and DE 10 2012 105 282 A1 disclose portion capsules for portion capsule machines each having a rigid or semi-rigid base element which has a cavity for receiving a raw beverage material , such as roasted coffee granules, instant coffee, chocolate powder, ground tea, milk powder or the like, the cavity being closed after the portion capsule has been filled with a capsule lid. So that the raw beverage material does not lose its aroma during storage and transport of the portion capsule, the base element is designed to be gas and liquid-tight. In addition, the base element must withstand comparatively high mechanical forces during the production of the beverage, since the extraction liquid is introduced into the cavity under high pressure and at high temperature in order to produce the beverage under interaction with the raw beverage material.
Typischerweise werden bei den aus dem Stand der Technik bekannten Portionskapseln daher tiefgezogene bzw. thermogeformte Basiselemente aus Polyethylen (PE), Polypropylen (PP), Polyvinylchlorid (PVC) und/oder Polyethylenterephthalat (PET) und/oder Metall, insbesondere Aluminium verwendet, da solche Basiselemente kostengünstig herstellbar, mechanisch stabil, sowie gas- und flüssigkeitsdicht sind. Typically, deep-drawn or thermoformed base elements made of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC) and / or polyethylene terephthalate (PET) and / or metal, in particular aluminum, are therefore used in the portion capsules known from the prior art, since such Base elements are inexpensive to manufacture, mechanically stable and gas and liquid tight.
Offenbarung der Erfindung Disclosure of the invention
Es ist eine Aufgabe der vorliegenden Erfindung eine Portionskapsel der eingangs genannten Art zur Verfügung zu stellen, welche sich nach der Getränkeerstellung einfacher, umweltschonen der und kostengünstiger Entsorgen lässt und/oder welche einfacher herzustellen ist. Gelöst wird die Aufgabe mit einer Portionskapsel zur Zubereitung eines Getränks in einer Ge tränkeherstellungsmaschine, wobei die Portionskapsel ein Basiselement mit einem Flansch und mit einem Hohlraum zum Aufnehmen eines Getränkerohmaterials und einen den Hohlraum ver schließenden Kapseldeckel aufweist, wobei der Kapseldeckel an dem Flansch befestigt ist und auf der dem Kapseldeckel gegenüberliegenden Fläche eine Dichtung vorgesehen ist, die teil plastisch vorgesehen ist. It is an object of the present invention to provide a portion capsule of the type mentioned at the outset, which can be disposed of more easily, more environmentally friendly and more cost-effectively after the beverage has been produced, and / or which is easier to manufacture. The object is achieved with a portion capsule for preparing a beverage in a beverage production machine, the portion capsule having a base element with a flange and with a cavity for receiving a beverage raw material and a capsule cover closing the cavity, the capsule cover being fastened to the flange and a seal is provided on the surface opposite the capsule cover, which is provided in part plastically.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention.
Weiterhin gelöst wird die Aufgabe mit einer Portionskapsel zur Zubereitung eines Getränks in einer Getränkeherstellungsmaschine, wobei die Portionskapsel ein Basiselement mit einem Flansch und mit einem Hohlraum zum Aufnehmen eines Getränkerohmaterials und einen den Hohlraum verschließenden Kapseldeckel aufweist, wobei der Kapseldeckel an dem Flansch befestigt ist und auf der dem Kapseldeckel gegenüberliegenden Fläche eine Dichtung vorgese hen ist, die teilelastisch vorgesehen ist. The object is further achieved with a portion capsule for preparing a drink in a beverage production machine, the portion capsule having a base element with a flange and with a cavity for receiving a raw beverage material and a capsule cover closing the cavity, the capsule cover being fastened to and on the flange the surface opposite the capsule cover is provided with a seal which is provided in a partially elastic manner.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention.
Die folgenden Ausführungen gelten für beide Gegenstände der vorliegenden Erfindung gleich ermaßen. The following statements apply equally to both objects of the present invention.
Diese Gegenstände der vorliegenden Erfindung betreffen eine Portionskapsel, die beispielswei se zur Getränkeherstellung eingesetzt wird. Beispielsweise wird mit der Portionskapsel Kaffee oder Espresso oder Tee hergestellt. Dafür wiest die Portionskapsel ein Basiselement mit einem Boden und Seitenwänden auf, die einen Hohlraum aufspannen, in den das Getränkerohmaterial eingefüllt wird. Der Hohlraum wird dann mit einem Kapseldeckel verschlossen. Zur Herstellung des Getränks wird die Portionskapsel beispielsweise mit heißem Wasser durchströmt. Vorzugsweise unterscheiden sich der Werkstoff, aus dem die Dichtung und das Basiselement gefertigt sind. Vorzugsweise ist das Basiselement aus einem metallischen Werkstoff, insbeson dere Aluminium gefertigt. These objects of the present invention relate to a portion capsule which is used, for example, for beverage production. For example, coffee or espresso or tea is made with the portion capsule. For this purpose, the portion capsule has a base element with a base and side walls that span a cavity into which the raw beverage material is filled. The cavity is then closed with a capsule lid. To make the drink, the portion capsule is flowed through with hot water, for example. The material from which the seal and the base element are made preferably differ. The base element is preferably made of a metallic material, in particular aluminum.
Vorzugsweise weist die Portionskapsel eine Seitenwand und einen Boden auf. Die Seitenwand ist vorzugsweise konisch oder zylindrisch vorgesehen und insbesondere einstückig mit dem Bo den verbunden. An dem dem Boden gegenüberliegenden Ende der Seitenwand weist diese ei nen, insbesondere kreisringförmigen, Flansch auf, der vorzugsweise einstückig mit der Seiten wand verbunden ist und in einem Winkel, insbesondere einem stumpfen Winkel, zu dieser vor gesehen ist. The portion capsule preferably has a side wall and a bottom. The side wall is preferably conical or cylindrical and in particular connected in one piece with the Bo. At the bottom opposite end of the side wall, this egg egg, in particular annular, flange, which is preferably integrally connected to the side wall and at an angle, in particular an obtuse angle, is seen before this.
An einer Seite des Flansches ist in der Regel ein Kapseldeckel angeordnet, insbesondere ge siegelt, der einen Flohlraum in dem Basiselement, in dem sich ein Getränkerohmaterial befindet, abdichtet. An der dem Kapseldeckel gegenüberliegenden Seite des Flansches ist die Dichtung vorgesehen.  On one side of the flange, a capsule cover is generally arranged, in particular seals, which seals a flea space in the base element, in which a raw beverage material is located. The seal is provided on the side of the flange opposite the capsule cover.
Erfindungsgemäß ist die Dichtung teilplastisch und/oder teilelastisch vorgesehen. Einmal ver formt bleibt die Dichtung also nicht in der verformten Form und/oder nimmt seine ursprüngliche Form nicht wieder an. Beispielsweise verformt sich die Dichtung beim Schließen der Brühkam mer teilplastisch. Dadurch wird eine gute Dichtwirkung erzielt und die Dichtwirkung bleibt zumin dest teilweise bestehen auch wenn der Schließdruck der Kammerteile nachlässt. Teilplastisch im Sinne der Erfindung bedeutet, dass sich der Abdruck, den die Brühkammer in die Dichtung eindrückt nur teilweise rückformt. Vorzugsweise beträgt die Rückformung 10 -40 % des von der Brühkammer erzeugten maximalen Abdrucks. Vorzugsweise beträgt die Abweichung des Quer schnitts der Dichtung nach Verformung und Rückformung zwischen 10 und 40 % bezogen auf den Querschnitt der Dichtung vor der Verformung. Die Dichtung ist demnach teilelastisch und formt sich teilweise zurück nachdem der Druck von der Brühkammer nachgelassen hat. Die Dichtung unterscheidet sich folglich von einer gummielastischen Dichtung, die sich vollständig zurückformen wird, wenn der Druck der Brühkammer nachlässt. Die Dichtung unterscheidet sich auch von einer plastisch verformbaren Dichtung, bei der die maximale Verformung der Dichtung zumindest im wesentlichen erhalten bleibt. According to the invention, the seal is provided partially plastic and / or partially elastic. Once deformed, the seal does not remain in the deformed shape and / or does not return to its original shape. For example, the seal deforms partially plastic when the brewing chamber is closed. This achieves a good sealing effect and the sealing effect remains at least partially even if the closing pressure of the chamber parts decreases. Partly plastic in the sense of the invention means that the impression that the brewing chamber presses into the seal only partially reforms. The reshaping is preferably 10 -40% of the maximum impression generated by the brewing chamber. Preferably, the deviation of the cross section of the seal after deformation and reshaping is between 10 and 40% based on the cross section of the seal before the deformation. The seal is therefore partially elastic and partially reforms after the pressure from the brewing chamber has decreased. The seal thus differs from a rubber-elastic seal that will fully reform when the pressure in the brewing chamber subsides. The seal also differs from a plastically deformable seal, in which the maximum deformation of the seal is at least essentially retained.
Vorzugsweise oder erfindungsgemäß weist die Dichtung ein Biopolymer auf. Vorzugsweise ist sie vollständig aus einem Biopolymer gefertigt. Biopolymer gemäß der vorliegenden Erfindung sind Polymere, die aus nachwachsenden Roh stoffen erhalten werden und/oder biologisch abbaubar, insbesondere vollständig biologisch ab baubar, sind. Die Herstellung dieser Biopolymere kann dabei umfassende Reinigungsschritte und/oder Modifizierungsschritte beinhalten. Erfindungsgemäß können auch Mischungen von zwei oder mehreren Biopolymeren eingesetzt werden, wobei auch Mischungen von zwei oder mehr Biopolymeren unterschiedlicher Klassen beispielsweise Gelatine und Polysacharide oder Gelatine und Cellulose oder Polysaccharide und Cellulose oder auch Gelatine und Polysaccha ride und Cellulose in Betracht kommen. Diese Materialien haben den weiteren Vorteil, dass die daraus erhaltenen Basiselemente vegan und/oder koscher und/oder halal hergestellt werden können. Preferably or according to the invention, the seal has a biopolymer. It is preferably made entirely of a biopolymer. Biopolymers according to the present invention are polymers which are obtained from renewable raw materials and / or are biodegradable, in particular completely biodegradable. The production of these biopolymers can include extensive cleaning steps and / or modification steps. According to the invention, mixtures of two or more biopolymers can also be used, mixtures of two or more biopolymers of different classes also being suitable, for example gelatin and polysaccharides or gelatin and cellulose or polysaccharides and cellulose or also gelatin and polysaccharides and cellulose. These materials have the further advantage that the base elements obtained therefrom can be produced vegan and / or kosher and / or halal.
Bevorzugt besteht zumindest ein Teilbereich der Dichtung zumindest teilweise aus Gelatine, Polysacchariden, Polylactiden, Cellulosen oder Mischungen aus zwei oder mehr dieser Biopo lymere. Vorzugsweise beträgt der Biopolymeranteil in dem Material, aus dem die Dichtung her gestellt wird, > 30 Gew.-%, vorzugsweise > 40 Gew.-%, noch mehr bevorzugt > 50 Gew.-% und am meisten bevorzugt > 55 Gew.-%. Vorzugsweise weist das Material Glycerin und Wasser auf. Vorzugsweise weist diese Mischung einen Vernetzer auf. At least part of the seal preferably consists at least partly of gelatin, polysaccharides, polylactides, celluloses or mixtures of two or more of these biopolymers. The proportion of biopolymer in the material from which the seal is made is preferably> 30% by weight, preferably> 40% by weight, even more preferably> 50% by weight and most preferably> 55% by weight . The material preferably has glycerol and water. This mixture preferably has a crosslinking agent.
Als Vernetzer eignet sich beispielsweise ein Tannin. A tannin, for example, is suitable as a crosslinking agent.
Insbesondere kann die Dichtung auch vollständig aus Biopolymer, insbesondere Gelatine, be stehen. In particular, the seal can also be made entirely of biopolymer, in particular gelatin.
Vorzugsweise besteht zumindest ein Teilbereich der Dichtung zumindest teilweise aus Gelatine und/oder Polysacharid und/oder Cellulose. Vorzugsweise beträgt der Gelatine- und/oder Poly- sacharid- und/oder Celluloseanteil des Materials, aus dem zumindest ein Teilbereich der Dich tung hergestellt wird > 70 Gew.-%, vorzugsweise > 80 Gew.-%, noch mehr bevorzugt > 90 Gew.-% und am meisten bevorzugt > 95 Gew.-%. Insbesondere kann die Dichtung auch voll ständig aus Biopolymer bestehen. At least part of the seal preferably consists at least partially of gelatin and / or polysaccharide and / or cellulose. The gelatin and / or polysaccharide and / or cellulose content of the material from which at least a portion of the seal is produced is preferably> 70% by weight, preferably> 80% by weight, even more preferably> 90% by weight % and most preferably> 95% by weight. In particular, the seal can also consist of biopolymer.
Vorzugsweise besteht zumindest ein Teilbereich der Dichtung zumindest teilweise aus Gelatine und/oder Hydroxypropylmethylcellulose und/oder Pullulan. Vorzugsweise beträgt der Gelatine- und/oder Hydroxypropylmethylcellulose- und/oder Pullulananteil des Materials, aus dem zumin dest ein Teilbereich der Dichtung hergestellt wird > 70 Gew.-%, vorzugsweise > 80 Gew.-%, noch mehr bevorzugt > 90 Gew.-% und am meisten bevorzugt > 95 Gew.-%. Insbesondere kann die Dichtung auch vollständig aus Biopolymer bestehen. At least part of the seal preferably consists at least partially of gelatin and / or hydroxypropylmethyl cellulose and / or pullulan. The gelatin and / or hydroxypropylmethyl cellulose and / or pullulan content of the material from which at least a portion of the seal is produced is preferably> 70% by weight, preferably> 80% by weight, even more preferably> 90% by weight and most preferably> 95% by weight. In particular, the seal can also consist entirely of biopolymer.
Gelatine ist vorzugsweise ein tierisches Protein, vorzugsweise ein Stoffgemisch. Hauptbestand teil ist vorzugsweise denaturiertes bzw. hydrolysiertes Kollagen, das aus dem Bindegewebe verschiedener Tierarten, vor allem Schweinen und Rindern, aber auch Fischen und Geflügel produziert werden kann. Bei der Gelatine kann es sich aber auch um pflanzliche Gelatine han deln, die meistens Polysacharide sind. Gelatin is preferably an animal protein, preferably a mixture of substances. The main constituent is preferably denatured or hydrolyzed collagen, which can be produced from the connective tissue of various animal species, especially pigs and cattle, but also fish and poultry. The gelatin can also be vegetable gelatin, which are mostly polysaccharides.
Als Gelatine kommt vorzugsweise insbesondere Gelatine zum Einsatz, wie sie im Bereich der pharmazeutischen Technologie zur Herstellung von Hartgelatine oder Weichgelatinekapseln Verwendung findet. Die Gelatine kann geschäumt sein. Dieses Schäumen kann mit einem Gas, insbesondere Luft erfolgen. The gelatin used is preferably, in particular, gelatin of the type used in the field of pharmaceutical technology for the production of hard gelatin or soft gelatin capsules. The gelatin can be foamed. This foaming can be done with a gas, especially air.
Vorzugsweise weist die Gelatine in der Dichtung einen Wassergehalt von 1 - 50 Gew %, vor zugsweise 6-20 Gew.%, noch mehr bevorzugt von 9-18 Gew.-%, viel mehr bevorzugt 9 -16 Gew.-% auf. The gelatin in the seal preferably has a water content of 1-50% by weight, preferably 6-20% by weight, more preferably 9-18% by weight, much more preferably 9-16% by weight.
Vorzugsweise kann die Gelatine, wie sie zur Herstellung der Dichtung eingesetzt wird, einen Bloom-Wert von 10 - 350, vorzugsweise 50-300, besonders bevorzugt von 150-280 Bloom oder 180-280 aufweisen. The gelatin as used for the production of the seal can preferably have a Bloom value of 10-350, preferably 50-300, particularly preferably 150-280 Bloom or 180-280.
Vorzugsweise ist die Gelatine gehärtet und/oder wasserunlöslich gemacht. Alternativ dazu ist die Gelatine gehärtet und/oder temporär wasserunlöslich oder temporär feuchtigkeitsresistent. Unter einer temporär wasserunlöslichen oder temporär feuchtigkeitsresistenten Gelatine wird beispielsweise Gelatine verstanden, die nach dem Gebrauch der Kapsel und/oder unter Um welteinflüssen, beispielsweise Feuchtigkeit, Sonnenstrahlung und/oder Mikroorganismeneinfluss nach einer gewissen Zeit, beispielsweise nach 1-28 Tagen, insbesondere 1-14 Tagen, bevor zugt 1 -7 Tagen, besonders bevorzugt 1-5 Tagen, Anzeichen einer Zersetzung zeigt. The gelatin is preferably hardened and / or made water-insoluble. Alternatively, the gelatin is hardened and / or temporarily water-insoluble or temporarily moisture-resistant. A temporarily water-insoluble or temporarily moisture-resistant gelatin is understood to mean, for example, gelatin which, after use of the capsule and / or under environmental influences, for example moisture, solar radiation and / or the influence of microorganisms, after a certain time, for example after 1-28 days, in particular 1-14 Days before given 1-7 days, particularly preferably 1-5 days, shows signs of decomposition.
Dies ist beispielsweise durch Vernetzung des Produktes mit einer oder mehreren Chemikalien erreichbar, also insbesondere ein Prozess, der das Molekulargewicht des Proteins wirksam er höht. Dafür eignen sich beispielsweise Alginsäure-Alkylenglykolderivate, mit Natriumperoxid oxidierte Alginsäure, Amylopectindialdehydoktenylsuccinat, Bisacryloylurea, This can be achieved, for example, by crosslinking the product with one or more chemicals, in particular a process that effectively increases the molecular weight of the protein. Suitable for this are, for example, alginic acid-alkylene glycol derivatives, alginic acid oxidized with sodium peroxide, amylopectin dialdehydoctenyl succinate, bisacryloylurea,
Bis(azidinethyl)sulfon, Bis(bromacetyl)ethylendiamin, Bis(chlormethyl)adipat, Bis(chlormethyl)diethylmalonat, Bis(chloracetyl)dimethylendiamin, Benzoldisulfonylfluorid, Bromessigsäure, Carbodiimide, Carboxylbenzylbromid, Bis(chlorethyl)urea, Chromacetat und - alaune, Cyallurchlorid, Dialdehydstärke behandelt mit kaustischer Soda, Dichlorhydroxy-s- triazin, Natriumsalz, Dichlorquinoxolinkarbonylchlorid, Diethylenurea, Diformyldihydroxytrio- xanonan, Ditrioxynaphthalin, Difluordinitrobenzol, Dihydroxydioxan, Diglycidylmo- no(propylenchlorhydrin)ether von Glycerin, Dihydroxymaleillsäure, Di(maleimido)benzol, Di(maleimido-)hexan, Dimaleimid, Dimethylaminophosphoryl, Bis (azidinethyl) sulfone, bis (bromoacetyl) ethylenediamine, bis (chloromethyl) adipate, Bis (chloromethyl) diethylmalonate, bis (chloroacetyl) dimethylene diamine, benzenedisulfonyl fluoride, bromoacetic acid, carbodiimide, carboxylbenzyl bromide, bis (chloroethyl) urea, chromium acetate and - alum, cyallurium chloride, dialdehyde starch treated with caustic soda, trichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydroxychloride, dichlorohydrochloride , Diformyldihydroxytrio- xanonan, Ditrioxynaphthalin, Difluoronitrobenzol, Dihydroxydioxan, Diglycidylmo- no (propylene chlorohydrin) ether of glycerol, Dihydroxymaleillsäure, Di (maleimido) benzene, Di (maleimido-) hexane, Dimaleimid, Dimethylaminophosphoryl
Bis(dimethylamino)phosphorylchlorid, Dimethylbis(vinylsulfonyl)benzol, Dinatriumsalz,  Bis (dimethylamino) phosphoryl chloride, dimethylbis (vinylsulfonyl) benzene, disodium salt,
Tris(sulfatetyl)sulfonium-lnnerethersalze, Ethylenglykol, Ethoxymethylisocyanat, Forma- lin(formaldehyd, Fluorsulfonylazetophenon, Glycerin, Gummi arabicum, beispielsweise oxidiert mit Perjodsäure, Glutaraldehyd, Flydroxytetramethylhydrooxazoniumchlorid, Milchsäure, Metho- toluolsulfonat, Mono-l-O-bromethylmaleat, Methylendiethansulfonamid, Methansulfonsäurehalo genalkoholester, Mercaptoethylaziridin, Methylglucanopyranosid, Naphthalindisulforylfluorid, Pektinsäure, Peroxydisulfat, Phenolformaldehydharze, Phenyltriazinidinylsilan, Phloroformalin, Phosphonitrilchlorid, Phloroglucin, Polyurethan, Polyformal(e), Polyacrolein, Polyvinylmaleat, Kaliumpermanganat, Kaliumferrocyanid, Pyromellithanhydrid, Resorcindiglycidylether, Resorcin, Saccharid(e), Sulfanilinodichloro-s-triazin, Natriumhypochlorit, Natriumsalz von Dichlorhydroxy- triazin, Stearylaminobenzoyl-Essigsäuure, Sucrose, oxidiert mit Perjodat, Tannin, Tetrahydroxy- phenol, Trimellithanhydrid, Trimethylenbis(isomaleimid), Tris(chloracetyl)hexahydrotriazin, Tetra- isopropyltitanat und/oder deren Gemisch aus mindestens zwei der oben genannten Substanzen. Tris (sulfatetyl) sulfonium lnnerethersalze, ethylene glycol, Ethoxymethylisocyanat, formalin (formaldehyde, Fluorsulfonylazetophenon, glycerin, gum arabic, for example, oxidized with periodic acid, glutaraldehyde, Flydroxytetramethylhydrooxazoniumchlorid, lactic acid, toluenesulfonate methodological, mono-lO-bromethylmaleat, Methylendiethansulfonamid, Methansulfonsäurehalo genalkoholester , Mercaptoethylaziridin, Methylglucanopyranosid, Naphthalindisulforylfluorid, pectic acid, peroxydisulfate, phenol formaldehyde resins, Phenyltriazinidinylsilan, Phloroformalin, phosphonitrile chloride, phloroglucinol, polyurethane, polyformal (e), polyacrolein, polyvinyl maleate, potassium permanganate, potassium ferrocyanide, pyromellitic anhydride, resorcinol, resorcinol, saccharide (s), Sulfanilinodichloro-s -triazine, sodium hypochlorite, sodium salt of dichlorohydroxy-triazine, stearylaminobenzoyl-acetic acid, sucrose, oxidized with periodate, tannin, tetrahydroxy-phenol, trimellitic anhydride, trimethylene bis (isomaleimide), tris (chl oracetyl) hexahydrotriazine, tetraisopropyl titanate and / or their mixture of at least two of the above-mentioned substances.
Polysacharid ist der Hauptbestandteil von pflanzlichen Zellwänden. Vorzugsweise wird das Po- lysacharid in Form von Cellulose, beispielsweise Methyl-Cellulose und/oder Hydroxypropylme- thyl-Cellulose und/oder Celluloseacetat, vorgesehen. Andere Cellulose basierende Verbindun gen sind ebenfalls denkbar. Alternativ kann das Polysacharid in Form von Pullulan vorgesehen. Das Polysacharid kann als Mischung von mehreren Substanzen zur Verfügung gestellt werden. Weiterhin kann zumindest ein Teilbereich des Basiselements und/oder des Kapseldeckels ganz oder teilweise aus Cellulose, beispielsweise Methyl-Cellulose und/oder Hydroxypropylmethyl- Cellulose und/oder Celluloseacetat bestehen. Andere Cellulose basierende Verbindungen sind ebenfalls denkbar. Polysaccharide is the main component of plant cell walls. The polysaccharide is preferably provided in the form of cellulose, for example methyl cellulose and / or hydroxypropyl methyl cellulose and / or cellulose acetate. Other cellulose-based compounds are also conceivable. Alternatively, the polysaccharide can be provided in the form of pullulan. The polysaccharide can be made available as a mixture of several substances. Furthermore, at least a portion of the base element and / or the capsule lid can consist entirely or partially of cellulose, for example methyl cellulose and / or hydroxypropylmethyl cellulose and / or cellulose acetate. Other cellulose-based compounds are also conceivable.
Unter Cellulosen werden erfindungsgemäß auch deren Derivate verstanden, insbesondere Cel luloseether, welche durch teilweise oder vollständige Substitution der Wasserstoff-Atome der Hydroxy-Gruppen in der Cellulose entstehen. Diese Celluloseether können vorzugsweise aus gewählt werden aus der Gruppe bestehend aus Carboxymethylcellulose, Methylcellulose, Ethyl- cellulose, Hydroxyethylcellulose, Hydroxypropylcellulose, Methylethylcellulose, Hydroxyethylme- thylcellulose, Hydroxypropylmethylcellulose, Ethylhydroxyethylcellulose und Carboxymethylhyd- roxyethylcellulose. Erfindungsgemäß können dabei auch Mischungen aus zwei oder mehr die ser Celluloseethyer zum Einsatz kommen. According to the invention, celluloses also include their derivatives, in particular cellulose ethers, which are formed by partial or complete substitution of the hydrogen atoms of the hydroxyl groups in the cellulose. These cellulose ethers can preferably be selected from the group consisting of carboxymethyl cellulose, methyl cellulose, ethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, methyl ethyl cellulose, hydroxyethyl methyl cellulose, hydroxypropyl methyl cellulose, ethyl hydroxyethyl cellulose and carboxymethyl hydroxyethyl cellulose. According to the invention, mixtures of two or more of these cellulose ethers can also be used.
Ganz besonders bevorzugt ist Hydroxypropylmethylcellulose. Eine entsprechend geeignete Hydroxypropylmethylcellulose wird beispielsweise auch in der Herstellung von veganen Hart kapseln im Bereich der pharmazeutischen Technologie eingesetzt. Hydroxypropylmethyl cellulose is very particularly preferred. A correspondingly suitable hydroxypropylmethyl cellulose is also used, for example, in the manufacture of vegan hard capsules in the field of pharmaceutical technology.
Vorzugsweise weist die Hydroxypropylmethylcellulose in der Dichtung einen Wassergehalt von 1-23 Gew.%, noch mehr bevorzugt von 1 ,5-20 Gew.-%, viel mehr bevorzugt von 2,0-15 Gew.-% und am meisten bevorzugt 2,5-10 Gew.-% auf. The hydroxypropylmethylcellulose in the seal preferably has a water content of 1-23% by weight, more preferably 1.5-20% by weight, much more preferably 2.0-15% by weight and most preferably 2, 5-10% by weight.
Vorzugsweise wird im folgenden unter der Bezeichnung Kunststoff basierend auf Gelatine und/oder Polysaccharid und/oder Cellulose, insbesondere Kunststoff basierend auf Gelatine und/oder Hydroxypropylmethylcellulose und/oder Pullulan verstanden. The term “plastic” based on gelatin and / or polysaccharide and / or cellulose, in particular plastic based on gelatin and / or hydroxypropylmethyl cellulose and / or pullulan, is preferably used below.
Vorzugsweise wird das Biopolymer, insbesondere der Kunststoff basierend auf Gelatine und/oder Polysacharid und/oder Cellulose, als Film/Folie zur Verfügung gestellt, die dann ge formt, insbesondere tiefgezogen wird, um die Dichtung zu erhalten. Es ist aber auch möglich das Biopolymer, insbesondere den Kunststoff, zu verflüssigen und zu gießen und/oder zu spritzen, um so die gewünschte Form der Dichtung zu erhalten. Nach dem Gießen wird das Biopolymer gehärtet, insbesondere unter Kälteeinfluss. Die so erhaltene Dichtung kann an dem Basisele ment, insbesondere an dessen Flansch angeordnet werden. The biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is preferably provided as a film / film, which is then shaped, in particular deep-drawn, in order to obtain the seal. However, it is also possible to liquefy and pour and / or inject the biopolymer, in particular the plastic, in order to obtain the desired shape of the seal. After casting, the biopolymer is hardened, especially under the influence of cold. The seal obtained in this way can be arranged on the base element, in particular on its flange.
Alternativ bevorzugt wird eine Form der herzustellenden Dichtung ein- oder mehrmals in ein flüssiges Biopolymer, insbesondere eine flüssige Kunststoffmasse, eingetaucht bis die ge wünschte Materialstärke erreicht wird. Alternatively, a shape of the seal to be produced is preferably immersed one or more times in a liquid biopolymer, in particular a liquid plastic mass, until the desired material thickness is reached.
Noch mehr bevorzugt wird das Biopolymer in eine Sicke, die eine Bördelung am äußeren Rand des Flansches und der Kapselkörper bildet, eingefüllt, beispielsweise mit einer Düse, vorzug weise während sich die Portionskapsel dreht. Ganz besonders bevorzugt ist zumindest ein Teil bereich des Basiselementes, insbesondere der Flansch vorm, beim und/oder nach dem Aufträ gen des Biopolymers, insbesondere der Gelatine, gekühlt. Das Aufträgen des Biopolymers kann nach dem Verschließen der Portionskapsel durch eine Deckelfolie erfolgen. Es ist aber auch möglich das Basiselement mit der Dichtung zu versehen und das Basiselement sodann zu befüllen und zu verschließen. Even more preferably, the biopolymer is filled into a bead, which forms a flange on the outer edge of the flange and the capsule body, for example with a nozzle, preferably while the portion capsule is rotating. It is very particularly preferred for at least a portion of the base element, in particular the flange before, to be cooled during and / or after the application of the biopolymer, in particular the gelatin. The biopolymer can be applied with a lid film after the portion capsule has been closed. However, it is also possible to provide the base element with the seal and then to fill and close the base element.
Das Biopolymer wird beispielsweise mittels Trocknung, Wärme- und/oder Kältebehandlung und/oder Vernetzung, beispielsweise mittels IV- oder UV-Strahlung gehärtet, bis das Biopoly mer, insbesondere der Kunststoff, so weit erstarrt ist, dass er die Verwendung als Basiselement gemeinsam mit der Dichtung insbesondere in der weiteren Produktion, zulässt. The biopolymer is cured, for example, by means of drying, heat and / or cold treatment and / or crosslinking, for example by means of IV or UV radiation, until the biopolymer, in particular the plastic, has solidified to such an extent that it is used together with the base element the seal, especially in further production.
Durch mehrmaliges Eintauchen der Form kann eine Dichtung mit mehreren Schichten erzeugt werden. Die Form kann nacheinander in verschiedene flüssige Biopolymere eingetaucht wer den. Die Schichten, die durch das Eintauchen in verschiedene flüssige Biopolymere erzeugt werden, können sich hinsichtlich ihrer optischen Eigenschaften, ihrer UV-Beständigkeit, Härte, Verformbarkeit und/oder Dichtheit gegenüber Flüssigkeiten unterscheiden. By immersing the mold several times, a seal with several layers can be created. The mold can be immersed in various liquid biopolymers one after the other. The layers that are created by immersion in various liquid biopolymers can differ in terms of their optical properties, their UV resistance, hardness, deformability and / or tightness to liquids.
Vorzugsweise ist eine Schicht, insbesondere eine Schicht, die Gelatine aufweist, geschäumt. Das Schäumen kann beispielsweise mit einem Treibgas erfolgen. Vorzugsweise wird diese Schicht mit einer Flaftvermittler Schicht, die besonders bevorzugt Gelatine aufweist, kombiniert. Besonders bevorzugt verbessert diese Flaftvermittlerschicht die Flaftung zwischen der ge schäumten Schicht und einem Metall-Basiselement, insbesondere einem Aluminium aufweisen den Basiselement. Eine weitere Schicht kann eine Schutzschutzschicht sein, die beispielsweise verhindert, dass eine Bipolymer-, insbesondere eine Gelatine-Schicht, aufweicht und/oder quillt. A layer, in particular a layer which has gelatin, is preferably foamed. Foaming can be done with a propellant, for example. This layer is preferably combined with a raft mediator layer, which particularly preferably has gelatin. This flow mediator layer particularly preferably improves the flow between the foamed layer and a metal base element, in particular an aluminum have the base element. A further layer can be a protective protective layer which, for example, prevents a bipolymer, in particular a gelatin, layer from softening and / or swelling.
Ganz besonders bevorzugt weist die Dichtung eine geschäumte Gelatineschicht und eine Flaft vermittlerschicht, die die Flaftung mit einem Aluminium-Basiselement verbessert und einer Schutzschicht, die ein Aufweichen und/oder Quellen, insbesondere der geschäumten Schicht zumindest vermindert, vorzugsweise verhindert. Vorzugsweise weist die geschäumte Schicht eine größere Schichtdicke als mindestens eine andere, vorzugsweise eine der anderen beiden Schichten, auf. The seal very particularly preferably has a foamed gelatin layer and a raft mediating layer which improves the rafting with an aluminum base element and a protective layer which preferably at least prevents softening and / or swelling, in particular of the foamed layer. The foamed layer preferably has a greater layer thickness than at least one other, preferably one of the other two layers.
Vorzugsweise wird zumindest der Teil der Oberfläche des Basiselementes, insbesondere des Kragens/Flansches, der mit dem Biopolymer, insbesondere der Gelatine, in Kontakt kommt, vor behandelt, um die Flaftung zwischen Biopolymer und dem Basiselement, insbesondere ein Ba siselement aus Aluminium zu verbessen. Eine derartige Vorbehandlung kann beispielsweise eine Plasmahandlung und/oder eine Behandlung mit Säure sein. In diesem Zusammenhang hat es sich als vorteilhaft erwiesen, wenn die Form eine Tauchform der Dichtung ist, wobei die Tauchform eine Kontur mit einem Tauchbereich aufweist, welcher in das flüssige Biopolymer eingetaucht wird. Der Tauchbereich entspricht bevorzugt einem Negativ der Kontur der herzustellenden Dichtung. Bei dem Herstellungsverfahren wird der Tauchbereich der Kontur mit einer Schicht des Biopolymers überzogen. In einem weiteren Schritt kann die Form aus dem flüssigen Biopolymer entnommen werden. Die Schicht des Biopolymers, die die Kontur der Form überzieht, kann erstarren und getrocknet werden. Ein entsprechendes Verfah ren ist beispielsweise im Bereich der Pharmazie als Colton-Verfahren zur Herstellung von phar mazeutischen Kapseln bekannt. Insbesondere kann die überzogene Form während des Erstar- rens und/oder Trocknens in einer oder mehreren Dimensionen gesteuert werden, um die Aus gestaltung des Basiselements, insbesondere die Form und/oder die Dicke gezielt einzustellen. Preferably, at least the part of the surface of the base element, in particular the collar / flange, which comes into contact with the biopolymer, in particular the gelatin, is pretreated in order to improve the flow between the biopolymer and the base element, in particular a base element made of aluminum. Such a pretreatment can be, for example, a plasma treatment and / or a treatment with acid. In this context, it has proven to be advantageous if the shape is an immersion form of the seal, the immersion form having a contour with an immersion area which is immersed in the liquid biopolymer. The immersion area preferably corresponds to a negative of the contour of the seal to be produced. In the manufacturing process, the dipping area of the contour is covered with a layer of the biopolymer. In a further step, the mold can be removed from the liquid biopolymer. The layer of the biopolymer that covers the contour of the mold can solidify and dry. A corresponding process is known, for example, in the field of pharmacy as a Colton process for the production of pharmaceutical capsules. In particular, the coated shape can be controlled in one or more dimensions during solidification and / or drying in order to specifically adjust the design of the base element, in particular the shape and / or the thickness.
Noch ein Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung der erfin dungsgemäßen Portionskapsel, bei dem eine Form in ein Biopolymerbad getaucht wird und sich dabei ein Film auf der Oberfläche der Form bildet, der anschließend gekühlt und/oder getrocknet wird. Abschließend wird die Portionskapsel von der Form gelöst und gegebenenfalls noch be schnitten. Another object of the present invention is a method for producing the portion capsule according to the invention, in which a mold is immersed in a biopolymer bath and a film is formed on the surface of the mold, which is then cooled and / or dried. Finally, the portion capsule is detached from the mold and cut if necessary.
Vorzugsweise weist das Biopolymerbad Gelatine auf. The biopolymer bath preferably has gelatin.
Vorzugsweise ist der äußere Rand des Flansches gebördelt. The outer edge of the flange is preferably crimped.
Vorzugsweise ist das Basiselement aus Metall insbesondere Aluminium gefertigt. The base element is preferably made of metal, in particular aluminum.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung der Dich tung einer Portionskapsel, bei dem eine Form in ein Biopolymerbad getaucht wird und sich da bei ein Film auf der Oberfläche der Form bildet, der dabei anschließend gekühlt und/oder ge trocknet wird. Another object of the present invention is a method for producing the sealing device of a portion capsule, in which a mold is immersed in a biopolymer bath and a film is formed on the surface of the mold, which is then cooled and / or dried.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. Dieser Gegenstand der vorliegenden Erfindung betrifft ein Verfahren zur Herstellung einer Dich tung einer Portionskapsel, bei dem eine Form in ein Biopolymerbad getaucht wird, auf der dann ein Biopolymerfilm anhaftet, der dort erstarrt und dann weiterverwendet werden kann. Gegebe nenfalls wird der Film aus der Form entfernt. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention. This object of the present invention relates to a method for producing a device of a portion capsule, in which a mold is immersed in a biopolymer bath, on which then adheres a biopolymer film, which solidifies there and can then be used further. If necessary, the film is removed from the mold.
Vorzugsweise ist die Form die Negativform der herzustellenden Dichtung. The shape is preferably the negative shape of the seal to be produced.
Noch ein Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung einer Porti onskapsel, bei dem die Gelatine flüssig oder pastös auf den Flansch des Basiselements aufge tragen wird und dort härtet. Another object of the present invention is a method for producing a porti on capsule, in which the gelatin is applied in liquid or pasty form to the flange of the base element and hardens there.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention.
Vorzugsweise, weist das Basiselement der Portionskapsel die Form oder Oberfläche auf, an der ein Film aus Biopolymer anhaftet und dort erstarrt und dann die Dichtung für die Portionskapsel bildet. Vorzugsweise wird die Seite des Flansches, auf der der Film aufgetragen wird so ausge richtet, dass die Schwerkraft den Film an den Flansch drückt und der Film dort erstarrt. Vor zugsweise ist zumindest der Flansch vorm, beim und/oder nach dem Aufträgen des Films ge kühlt. Der Film kann dadurch aufgetragen werden, dass sich ein Auftragungsmittel und das Ba siselement relativ zueinander bewegen, insbesondere drehen. Es können mehrere Schichten aufgetragen werden. Preferably, the base element of the portion capsule has the shape or surface to which a film of biopolymer adheres and solidifies there and then forms the seal for the portion capsule. The side of the flange on which the film is applied is preferably oriented so that gravity presses the film against the flange and the film solidifies there. Before preferably at least the flange is cooled before, during and / or after application of the film. The film can be applied in that an application means and the base element move relative to one another, in particular rotate. Multiple layers can be applied.
Noch ein Gegenstand ist ein Verfahren zur Herstellung der Dichtung einer Portionskapsel, bei dem ein Biopolymer, insbesondere der Kunststoff basierend auf Gelatine und/oder Polysacharid und/oder Cellulose, als Film/Folie zur Verfügung gestellt, die dann geformt, insbesondere tiefge zogen wird und bei dem die geformte Folie als Dichtung für die Portionskapsel verwendet wird. Another object is a method for producing the seal of a portion capsule, in which a biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is provided as a film / film, which is then shaped, in particular thermoformed and in which the shaped film is used as a seal for the portion capsule.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. Die Dichtung kann mit dem Basiselement beispielsweise durch Kleben oder Siegeln verbunden werden. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention. The seal can be connected to the base element, for example by gluing or sealing.
Ein weiterer Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung der Dich tung einer Portionskapsel, bei dem das Biopolymer, insbesondere der Kunststoff basierend auf Gelatine und/oder Polysacharid und/oder Cellulose, verflüssigt wird, um dann gegossen und/oder gespitzt zu werden, um so die gewünschte Form der Dichtung zu erhalten. Another object of the present invention is a method for producing the seal of a portion capsule, in which the biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is liquefied in order to then be poured and / or sharpened, to get the desired shape of the seal.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention.
Gemäß dieses Gegenstands der vorliegenden Erfindung das flüssige Biopolymer, insbesondere die Gelatine, verflüssigt oder bereits flüssig zur Verfügung gestellt und dann in eine Form ge gossen und/oder gespritzt und so in die Form der Dichtung gebracht. According to this object of the present invention, the liquid biopolymer, in particular the gelatin, liquefied or already provided in liquid form and then poured and / or injected into a mold and thus brought into the shape of the seal.
Vorzugsweise wird das Biopolymer auf den Flansch der Portionskapsel aufgetragen und härtet dort. The biopolymer is preferably applied to the flange of the portion capsule and cures there.
Vorzugsweise wird zumindest ein Teilbereich eines Basiselementes der Portionskapsel vorm, beim und/oder nach dem Aufträgen des Biopolymers gekühlt wird. At least a portion of a base element of the portion capsule is preferably cooled before, during and / or after the application of the biopolymer.
Noch ein Gegenstand der vorliegenden Erfindung ist ein Verfahren zur Herstellung eines Ge tränks mit einer erfindungsgemäßen Portionskapsel, bei dem die Portionskapsel, insbesondere deren Flansch zwischen zwei sich schließenden Brühkammerelementen eingespannt und die Dichtung dabei deformiert wird und sich die Deformation danach nur teilweise zurückformt, wenn die Brühkammerelemente wieder geöffnet werden. Another object of the present invention is a method for producing a beverage with a portion capsule according to the invention, in which the portion capsule, in particular the flange between two closing brewing chamber elements is clamped and the seal is deformed and the deformation then only partially reforms when the Brewing chamber elements can be opened again.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Ausführungen der vorliegenden Erfindung gleichermaßen und umgekehrt. Merkmale, die im Zusammenhang mit dieser Ausführungsform der vorliegenden Erfindung gemacht worden sind können in andere Gegenstände der vorliegenden Erfindung übernommen werden. Gemäß dieses Gegenstands der vorliegenden Erfindung wird die Dichtung beim Schließen der Brühkammerelemente verformt. Dabei wird die Streckgrenze des Biopolymers so weit über schritten, das die Verformung teilplastisch ist. Dadurch ergibt sich eine sehr gute Dichtwirkung und der Auswurf der Portionskapsel aus dem Getränkeherstellungsapparat wird unterstützt. The statements made on this subject of the present invention apply equally to the other statements of the present invention and vice versa. Features made in connection with this embodiment of the present invention can be incorporated into other objects of the present invention. According to this object of the present invention, the seal is deformed when the brewing chamber elements are closed. The yield strength of the biopolymer is exceeded so far that the deformation is partially plastic. This results in a very good sealing effect and the ejection of the portion capsule from the beverage manufacturing apparatus is supported.
Weitere Einzelheiten, Merkmale und Vorteile der Erfindung ergeben sich aus den Zeichnungen, sowie aus der nachfolgenden Beschreibung von bevorzugten Ausführungsformen anhand der Zeichnungen. Die Zeichnungen illustrieren dabei lediglich beispielhafte Ausführungsformen der Erfindung, welche den wesentlichen Erfindungsgedanken nicht einschränken Further details, features and advantages of the invention result from the drawings, as well as from the following description of preferred embodiments with reference to the drawings. The drawings illustrate only exemplary embodiments of the invention, which do not restrict the essential inventive concept
Kurze Beschreibung der Zeichnungen Brief description of the drawings
Figur 1 zeigt eine schematische Schnittbildansicht einer Portionskapsel gemäß einer bei spielhaften Ausführungsform der vorliegenden Erfindung. Figure 1 shows a schematic sectional view of a portion capsule according to an exemplary embodiment of the present invention.
Ausführungsformen der Erfindung Embodiments of the invention
In Figur 1 ist eine schematische Schnittbildansicht einer Portionskapsel 1 zur Zubereitung eines Getränks in einer nicht abgebildeten Getränkeherstellungsmaschine gemäß einer beispielhaften Ausführungsform der vorliegenden Erfindung dargestellt. FIG. 1 shows a schematic sectional view of a portion capsule 1 for the preparation of a beverage in a beverage production machine (not shown) according to an exemplary embodiment of the present invention.
Die Portionskapsel 1 weist ein becherförmiges Basiselement 2 und ein an einem umlaufenden Flansch 7 des Basiselements 2 befestigten Kapseldeckel 4 auf. Der Kapseldeckel 4 ist dabei mit dem Flansch 7 insbesondere verschweißt oder verklebt. Das Basiselement 2 besteht aus einem Bodenbereich 6 und einem Wandbereich 8, die vorzugsweise einstückig vorgesehen sind. In nerhalb des Basiselements 2 ist ein Hohlraum 3 ausgebildet, welcher mit Getränkerohmaterial befüllt ist (aus Gründen der Übersichtlichkeit nicht illustriert) und welcher durch den Kapselde ckel 4 verschlossen ist. Auf der dem Kapseldeckel (4) gegenüberliegenden Seite des Flansches ist eine Dichtung angeordnet, die sich beim Schließen der Brühkammer verformt. Vorzugsweise ist die Dichtung zumindest teilweise aus Gelatine gefertigt. Vorzugsweise wird das Dichtungs material flüssig auf den Flansch aufgetragen und härtet dort aus, insbesondere indem das Dich tungsmaterial gekühlt wird. Dabei ist das Basiselement der Portionskapsel vorzugsweise um 180° gedreht, so dass die Schwerkraft das flüssige Dichtungsmaterial gegen den Flansch drückt. Vorzugsweise wird das Basiselement, insbesondere der Flansch, vor dem Aufträgen des Dichtungsmaterials gekühlt. Beim Öffnen der Brühkammer stellt sich die Verformung nur teilwei- se zurück. Nach dem Öffnen der Brühkammer verbleibt folglich eine Deformation in der Dichtung zurück. Die Dichtung formt sich teilweise elastisch zurück, nimmt aber nicht ihre ursprüngliche Form ein. Die Portionskapsel 1 wird im Gebrauch in einer Getränkeherstellungsmaschine in eine Brüh kammer eingeführt. Anschließend wird die Brühkammer geschlossen, beispielsweise indem zwei Brühkammerelemente relativ zueinander bewegt werden. Dabei werden der Kapseldeckel 4 und der Bodenbereich 6 nacheinander oder gleichzeitig perforiert und durch die Perforations öffnungen im Kapseldeckel 4 Extraktionsflüssigkeit unter Druck in den Hohlraum 3 eingeleitet. Durch die Wechselwirkung zwischen der Extraktionsflüssigkeit und dem Getränkerohmaterial entsteht das gewünschte Getränk, welches die Portionskapsel 1 durch die Perforationsöffnun gen im Bodenbereich 6 verlässt und einem Getränkegefäß zugeführt wird. Durch das Filterme dium 9 werden etwaige Partikel des Getränkerohmaterials aus dem Getränk gefiltert und in der Portionskapsel 1 zurückgehalten. Beim Schließen der Brühkammerelemente wird die Dichtung 1 1 verformt, d.h. nach de, Brühen bleiben Spuren der Brühkammer in dem Dichtungsmaterial sichtbar, die jedoch geringer ausfällt als die Verformung der Dichtung bei geschlossener Brüh kammer. The portion capsule 1 has a cup-shaped base element 2 and a capsule cover 4 fastened to a peripheral flange 7 of the base element 2. The capsule cover 4 is in particular welded or glued to the flange 7. The base element 2 consists of a bottom area 6 and a wall area 8, which are preferably provided in one piece. A cavity 3 is formed within the base element 2, which is filled with raw beverage material (not illustrated for reasons of clarity) and which is closed by the capsule cap 4. A seal is arranged on the side of the flange opposite the capsule cover (4) which deforms when the brewing chamber is closed. The seal is preferably at least partially made of gelatin. Preferably, the sealing material is applied to the flange in liquid form and hardens there, in particular by cooling the sealing material. The base element of the portion capsule is preferably rotated through 180 ° so that gravity presses the liquid sealing material against the flange. The base element, in particular the flange, is preferably cooled before the sealing material is applied. When the brewing chamber is opened, the deformation is only partially se back. After opening the brewing chamber, a deformation remains in the seal. The seal partially resiliently forms, but does not assume its original shape. The portion capsule 1 is inserted into a brewing chamber in use in a beverage manufacturing machine. The brewing chamber is then closed, for example by moving two brewing chamber elements relative to one another. The capsule cover 4 and the base region 6 are perforated one after the other or simultaneously and extraction liquid under pressure is introduced into the cavity 3 through the perforation openings in the capsule cover 4. The interaction between the extraction liquid and the raw beverage material results in the desired beverage, which leaves the portion capsule 1 through the perforation openings in the base region 6 and is supplied to a beverage container. Any particles of the raw beverage material are filtered out of the beverage and retained in the portion capsule 1 by the filter medium 9. When the brewing chamber elements are closed, the seal 11 is deformed, ie after brewing, traces of the brewing chamber remain visible in the sealing material, but this is less than the deformation of the seal when the brewing chamber is closed.
Bezugszeichenliste Reference symbol list
1 Portionskapsel1 serving capsule
2 Basiselement 3 Hohlraum2 base element 3 cavity
4 Kapseldeckel4 capsule lids
5 Teilbereich5 section
6 Bodenbereich6 floor area
7 Flansch 7 flange
8 Wandungsbereich8 wall area
9 Filtermedium9 filter medium
10 Bördelung10 flaring
1 1 Beschichtung 1 1 coating

Claims

PATENTANSPRÜCHE PATENT CLAIMS
1. Portionskapsel (1 ) zur Zubereitung eines Getränks in einer Getränkeherstellungsmaschi ne, wobei die Portionskapsel (1 ) ein Basiselement (2) mit einem Flansch (7) und mit ei nem Hohlraum (3) zum Aufnehmen eines Getränkerohmaterials und einen den Hohlraum (3) verschließenden Kapseldeckel (4) aufweist, wobei der Kapseldeckel (4) an dem Flansch befestigt ist und auf der dem Kapseldeckel gegenüberliegenden Fläche eine Dichtung (11 ) vorgesehen ist, dadurch gekennzeichnet, dass die Dichtung (1 1 ) teilplas tisch vorgesehen ist. 1. portion capsule (1) for preparing a beverage in a beverage production machine, the portion capsule (1) being a base element (2) with a flange (7) and with a cavity (3) for receiving a beverage raw material and the cavity (3 ) Closing capsule cover (4), wherein the capsule cover (4) is fastened to the flange and a seal (11) is provided on the surface opposite the capsule cover, characterized in that the seal (1 1) is provided partially plastic.
2. Portionskapsel (1 ) zur Zubereitung eines Getränks in einer Getränkeherstellungsmaschi ne, insbesondere nach Anspruch 1 , wobei die Portionskapsel (1 ) ein Basiselement (2) mit einem Flansch (7) und mit einem Hohlraum (3) zum Aufnehmen eines Getränkeroh materials und einen den Hohlraum (3) verschließenden Kapseldeckel (4) aufweist, wobei der Kapseldeckel (4) an dem Flansch befestigt ist und auf der dem Kapseldeckel gegen überliegenden Fläche eine Dichtung (1 1 ) vorgesehen ist, dadurch gekennzeichnet, dass die Dichtung (1 1 ) teilelastisch vorgesehen ist. 2. portion capsule (1) for preparing a beverage in a beverage production machine, in particular according to claim 1, wherein the portion capsule (1) is a base element (2) with a flange (7) and with a cavity (3) for receiving a raw beverage material and has a capsule cover (4) closing the cavity (3), the capsule cover (4) being fastened to the flange and a seal (1 1) being provided on the surface opposite the capsule cover, characterized in that the seal (1 1 ) is provided partially elastic.
3. Portionskapsel nach Anspruch 1 oder 2 oder dem Oberbegriff von Patentanspruch 1 , dadurch gekennzeichnet, dass die Dichtung ein Biopolymer aufweist. 3. portion capsule according to claim 1 or 2 or the preamble of claim 1, characterized in that the seal comprises a biopolymer.
4. Portionskapsel (1 ) nach Anspruch 3, wobei das Biopolymer Gelatine aufweist. 4. portion capsule (1) according to claim 3, wherein the biopolymer comprises gelatin.
5. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass der äußere Rand des Flansches gebördelt ist. 5. portion capsule (1) according to any one of the preceding claims, characterized in that the outer edge of the flange is crimped.
6. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass das Basiselement aus Metall insbesondere Aluminium gefertigt ist. 6. portion capsule (1) according to any one of the preceding claims, characterized in that the base element is made of metal, in particular aluminum.
7. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Dichtung eine geschäumte Gelatineschicht aufweist. 7. portion capsule (1) according to any one of the preceding claims, characterized in that the seal has a foamed gelatin layer.
8. Portionskapsel nach Anspruch 7, dadurch gekennzeichnet, dass die geschäumte Schicht auf einer Oberfläche eine Schutzschicht, insbesondere gegen Quellen und/oder Aufwei chen und/oder auf einer Oberfläche, insbesondere einer anderen, vorzugsweise der ge- genüberliegenden Oberfläche eine Haftvermittlerschicht zur Verbesserung der Haftung der geschäumten Schicht an dem Basiselement, insbesondere einem Aluminium- Basiselement aufweist. 8. portion capsule according to claim 7, characterized in that the foamed layer on a surface is a protective layer, in particular against swelling and / or softening and / or on a surface, in particular another, preferably the opposite surface has an adhesion promoter layer to improve the adhesion of the foamed layer to the base element, in particular an aluminum base element.
9. Verfahren zur Herstellung der Dichtung einer Portionskapsel, bei dem eine Form der Dichtung in ein Biopolymerbad getaucht wird und sich dabei ein Film auf der Oberfläche der Form bildet, der anschließend gekühlt und/oder getrocknet wird. 9. A method of making a portion capsule seal in which a form of the seal is immersed in a biopolymer bath, thereby forming a film on the surface of the form, which is then cooled and / or dried.
10. Verfahren zur Herstellung der Dichtung einer Portionskapsel, dadurch gekennzeichnet, dass ein Biopolymer, insbesondere Gelatine und/oder Polysacharid und/oder Cellulose, als Film/Folie zur Verfügung gestellt, die dann geformt, insbesondere tiefgezogen, wird und bei dem die geformte Folie als Dichtung an der Portionskapsel vorgesehen wird. 10. A method for producing the seal of a portion capsule, characterized in that a biopolymer, in particular gelatin and / or polysaccharide and / or cellulose, is provided as a film / film, which is then shaped, in particular thermoformed, and in which the shaped film is provided as a seal on the portion capsule.
1 1 . Verfahren zur Herstellung der Dichtung einer Portionskapsel, bei dem ein Biopolymer, insbesondere der Kunststoff basierend auf Gelatine und/oder Polysacharid und/oder Cel lulose, verflüssigt wird um dann gegossen und/oder gespitzt zu werden. 1 1. Method for producing the seal of a portion capsule, in which a biopolymer, in particular the plastic based on gelatin and / or polysaccharide and / or cellulose, is liquefied and then poured and / or sharpened.
12. Verfahren zur Herstellung einer Portionskapsel (1 ) nach einem der vorherigen Ansprü che, dadurch gekennzeichnet, dass die Gelatine flüssig oder pastös auf den Flansch (7) des Basiselements (2) aufgetragen wird und dort härtet. 12. A method for producing a portion capsule (1) according to one of the preceding claims, characterized in that the gelatin is applied in liquid or pasty form to the flange (7) of the base element (2) and hardens there.
13. Verfahren nach Anspruch 12, dadurch gekennzeichnet, dass die Gelatine gekühlt wird. 13. The method according to claim 12, characterized in that the gelatin is cooled.
14. Verfahren nach Anspruch 12 oder 13, dadurch gekennzeichnet, dass das Basiselement vorm, beim und/oder nach dem Aufträgen der Gelatine gekühlt wird. 14. The method according to claim 12 or 13, characterized in that the base element is cooled before, during and / or after the application of the gelatin.
15. Verfahren zur Herstellung eines Getränks mit einer Portionskapsel gemäß einem der voranstehenden Ansprüche, dadurch gekennzeichnet, dass die Portionskapsel, insbe sondere deren Flansch (7) zwischen zwei sich schließenden Brühkammerelementen ein gespannt und die Dichtung (1 1 ) dabei deformiert wird und sich die Deformation danach nur teilweise zurückformt, wenn die Brühkammerelemente wieder geöffnet werden. 15. A method for producing a beverage with a portion capsule according to any one of the preceding claims, characterized in that the portion capsule, in particular its flange (7) between two closing brewing chamber elements, and the seal (1 1) is deformed and the Deformation thereafter only partially reshaped when the brewing chamber elements are opened again.
EP19808792.6A 2018-11-22 2019-11-22 Seal of a portion capsule Active EP3883865B1 (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
DE102018220100 2018-11-22
EP19151178 2019-01-10
EP19155589 2019-02-05
PCT/EP2019/082259 WO2020104667A1 (en) 2018-11-22 2019-11-22 Seal for a single serve capsule

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EP3883865A1 true EP3883865A1 (en) 2021-09-29
EP3883865B1 EP3883865B1 (en) 2022-11-09

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EP (1) EP3883865B1 (en)
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Publication number Publication date
WO2020104667A1 (en) 2020-05-28
ES2934489T3 (en) 2023-02-22
EP3883865B1 (en) 2022-11-09
US20220063899A1 (en) 2022-03-03

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