EP3883865A1 - Joint d'étanchéité d'une capsule - Google Patents

Joint d'étanchéité d'une 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)
English (en)
Other versions
EP3883865B1 (fr
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/fr
Application granted granted Critical
Publication of EP3883865B1 publication Critical patent/EP3883865B1/fr
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

Classifications

    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043Packages adapted to allow liquid to pass through the contents
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B65CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65DCONTAINERS 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
    • B65D85/00Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043Packages adapted to allow liquid to pass through the contents
    • B65D85/8064Sealing 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.

Landscapes

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

Abstract

L'invention concerne une capsule (1) pour la préparation d'une boisson dans une machine de préparation de boissons, la capsule (1) présentant un élément de base (2) étanche aux liquides pourvue d'une cavité (3) destinée à recevoir une matière brute de préparation de boisson et un opercule (4) de capsule fermant la cavité (3).
EP19808792.6A 2018-11-22 2019-11-22 Joint d'étanchéité d'une capsule dosette Active EP3883865B1 (fr)

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 (fr) 2018-11-22 2019-11-22 Joint d'étanchéité d'une capsule

Publications (2)

Publication Number Publication Date
EP3883865A1 true EP3883865A1 (fr) 2021-09-29
EP3883865B1 EP3883865B1 (fr) 2022-11-09

Family

ID=68654506

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19808792.6A Active EP3883865B1 (fr) 2018-11-22 2019-11-22 Joint d'étanchéité d'une capsule dosette

Country Status (4)

Country Link
US (1) US20220063899A1 (fr)
EP (1) EP3883865B1 (fr)
ES (1) ES2934489T3 (fr)
WO (1) WO2020104667A1 (fr)

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CH718778A1 (de) * 2021-06-29 2022-12-30 FluidSolids AG Behälter für die Zubereitung eines flüssigen Nahrungsmittels.

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EP3883865B1 (fr) 2022-11-09
US20220063899A1 (en) 2022-03-03
WO2020104667A1 (fr) 2020-05-28
ES2934489T3 (es) 2023-02-22

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