EP2900572A1 - Single serve capsule comprising a filter element connected thereto by sealing - Google Patents

Single serve capsule comprising a filter element connected thereto by sealing

Info

Publication number
EP2900572A1
EP2900572A1 EP13771121.4A EP13771121A EP2900572A1 EP 2900572 A1 EP2900572 A1 EP 2900572A1 EP 13771121 A EP13771121 A EP 13771121A EP 2900572 A1 EP2900572 A1 EP 2900572A1
Authority
EP
European Patent Office
Prior art keywords
filter element
portion capsule
capsule
diameter
sealed
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
EP13771121.4A
Other languages
German (de)
French (fr)
Other versions
EP2900572B1 (en
Inventor
Marc KRÜGER
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.)
K Fee System GmbH
Original Assignee
K Fee System 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
Application filed by K Fee System GmbH filed Critical K Fee System GmbH
Priority to PL13771121T priority Critical patent/PL2900572T3/en
Priority to SI201330503A priority patent/SI2900572T1/en
Priority to RS20170082A priority patent/RS55635B1/en
Publication of EP2900572A1 publication Critical patent/EP2900572A1/en
Application granted granted Critical
Publication of EP2900572B1 publication Critical patent/EP2900572B1/en
Priority to HRP20170156TT priority patent/HRP20170156T1/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
    • B65D85/8061—Filters
    • 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

Definitions

  • the present invention relates to a portion capsule for the manufacture of a drink having a side wall and a bottom, which together define a space, wherein a filter element is sealed to the bottom within the space.
  • portion capsules are known from the prior art and are used for example for the production of coffee or tea or coffee-like beverages such as espresso.
  • portion capsules for making coffee and espresso are disclosed.
  • the portion capsules are preferably frusto-conical or cylindrical in shape and are produced, for example, from a thermoformed plastic film or by plastic injection molding. They usually have a side wall with a peripheral flange, an open filling side for a beverage substrate to be extracted and / or dissolved beverage substrate and a capsule bottom, wherein between the beverage substrate and the capsule bottom is supported against the capsule bottom filter element. After insertion and sealing of the filter element to the portion capsule bottom and the filling of the beverage substrate, the portion capsule is closed with a lid film, which is sealed or glued, for example, on the flange.
  • the portion capsule is introduced into a brewing chamber of a preparation device. Before, after or during the introduction of the portion capsule into the brewing chamber, the portion capsule is preferably opened on its bottom side, and after the brewing chamber has been sealed, the filling side of the portion capsule closed with a closing foil is pierced by piercing means. Subsequently, preparation liquid, preferably hot water, is conveyed under pressure into the portion capsule. The preparation liquid flows through the beverage substrate and extracts and / or dissolves the substances required for the beverage production from the beverage substrate. For the preparation of an espresso, for example, a brewing water pressure of up to 20 bar acts on the coffee powder to extract the essential oils.
  • the portion capsules according to the prior art have the disadvantage that the beverage produced has comparatively much foam on its surface.
  • a portion capsule for the preparation of a beverage with a side wall and a bottom, which together define a space, wherein within the space a filter element is sealed to the bottom and the sealing seam is provided annularly and wherein the outer diameter of the sealed seam 75th - 85% of the
  • Diameter of the filter element is.
  • the filter element is disc-shaped and has a circular cross-section.
  • the sealed seam which connects the filter element to the bottom of the portion capsule in a material-tight manner, is preferably attached by ultrasonic welding.
  • the filter element is liquid impermeable after sealing in the region of the sealing seam.
  • the inner diameter of the sealed seam is 67-77% of the diameter of the filter element.
  • the width of the sealed seam is 1 - 1, 5 millimeters.
  • the bottom of the portion capsule has a substantially planar portion which is circular in shape and whose outer diameter is 84-94% of the
  • Diameter of the filter element is.
  • the outer circumference of the flat portion is preferably followed by a bead, through which the flat portion is arranged slightly spaced from a possible display.
  • the bead also forms the transition between the flat bottom and the side wall and gives the portion capsule stability.
  • the filter element extends into the region of the bead and covers it at least partially without touching it.
  • the bottom has a recess which is so large that substantially no pressure loss is produced by the outflow / throughflow of the beverage through this recess.
  • This recess is preferably already in the Capsule bottom incorporated before the filter element is sealed to the capsule bottom.
  • the recess is preferably closed before the preparation process with a film or the like, which can be removed or pierced by a piercing.
  • the diameter of the filter element is smaller, in particular 1 - 5% smaller than the inner dimension of the portion capsule at ground level.
  • the filter element has a felt structure.
  • this is a needled felt structure.
  • the filter element consists of at least one felt structure and a support structure, in particular a fabric structure, wherein particularly preferably the felt structure makes up at least a portion of the volume of the support structure.
  • the felt structure extends over the entire cross section of the support structure, but more preferably over only a portion of the height.
  • the felt structure is positively, positively and / or materially connected to the support structure.
  • the filter element has two or more felt structures, which are preferably separated from each other by the support structure. The thickness of the two felt structures may be the same or different.
  • a felt structure facing the powder or tea is thinner than the felt structure facing the capsule bottom, or vice versa.
  • the surface of the felt structure is treated, for example, heat-treated, for example, to fix loose fibers.
  • the filter element having a felt structure is merely inserted into the capsule, in particular on its bottom.
  • the filter element can also be connected to the capsule, in particular its bottom, in particular materially bonded. When perforating the perforating agent can penetrate into this filter element.
  • a plurality of filter elements, which have one or more felt structures and a carrier structure are arranged one above the other in the capsule and possibly joined together.
  • a filter element having a support structure, in particular a fabric structure, and a felt structure is produced, for example, by providing a fabric structure consisting of longitudinal and transverse threads.
  • a felt in particular a needle felt
  • fiber units are preferably selected from 0.8 to 7 dtex.
  • the connection of the individual fibers together to form a felt and / or its anchoring in the support structure preferably takes place through the production process of needling.
  • needles are inserted with reverse barbs in the submitted fiber package at high speed and pulled out again. The barbs cause the fibers to overflow a variety of resulting loops entwined with each other and / or with the carrier fabric.
  • the support element comprising one or more felt structures preferably comprises a mass occupancy (also referred to as grammage or basis weight) between 100 and 800 grams per square meter, more preferably between 200 and 650 grams per square meter, and most preferably substantially 150-250 grams per square meter for the production of tea and 600 - 700 grams per square meter for the production of coffee, espresso or the like.
  • the filter element or the fleece preferably has a thickness of between 0.8 and 3.3 millimeters, more preferably between 1.1 and 3.0 millimeters and most preferably 1.2-2.4 millimeters for the production of tea and 2 , 6 - 3.0 millimeters for the production of coffee.
  • the side wall and the bottom are an injection molded part.
  • the side wall and the bottom are integrally provided.
  • an energy generator is provided at the bottom of the portion capsule.
  • This energy generator can be annular, rectangular, qudratisch, oval or have any other closed shape.
  • the energy generator can be continuous or with
  • the energy generator is provided integrally with the bottom and is produced in the injection molding together with this.
  • the cross section of the energy generator is triangular, rectangular, square, circular or oval.
  • the cross section may also have any other shape, as long as the energy generator protrudes from the surface.
  • the energy generator is preferably provided on the surface of the floor which faces the space in which the beverage substrate to be extracted and / or dissolved is located.
  • FIGS. 1 and 2 These explanations are merely exemplary and do not limit the general inventive concept. The explanations apply equally to all articles of the present invention.
  • FIG. 1 shows a first embodiment of the invention Portion capsule.
  • FIG. 2 shows a further embodiment of the invention
  • FIG. 1 shows the portion capsule 1 according to the invention, which in the present case has a substantially frusto-conical shape.
  • the portion capsule 1 has a circumferential side wall 1.2 and a bottom portion 1.1.
  • the side wall 1 .2 and the bottom portion 1 .1 span a space 1 .7, in which there is a filter element 2, which has a felt structure in the present case.
  • the filter element 2 is by means of the tool 3, which has at its lower end sealing surfaces 3.1, to the bottom 1 .1 of the
  • Portion capsule 1 sealed to form a sealed seam 7.
  • Portion capsule 1 at least partially held in a counter-holder 6.
  • the bottom 1 .1 of the portion capsule has a circular planar portion, at its outer end an annular bead surrounds 1.3, which simultaneously represents the transition region 5 between the bottom and the side wall.
  • the bead 1.3 By the bead 1.3, the flat portion of the bottom of a possible support on which the bead rests, spaced.
  • the filter element 2 is sealed to the bottom of the portion capsule, in particular ultrasonically sealed, and the tool 3 has been removed from the portion capsule, it is filled with a beverage substrate, for example ground coffee, and then preferably with a foil
  • the flange preferably has a bulge 1 .5, which serves as a defined sealing surface.
  • the weld is provided annularly and that the outer diameter of the sealing seam L2 75 - 85%, here 70.6% of the
  • Diameter L3 of the filter element is.
  • the inner diameter L1 of the sealed seam is preferably 67-77%, in this case 72.5%, of the diameter of the filter element.
  • the width of the sealed seam is 1, 5 millimeters.
  • the Filter element 2 connected to the capsule bottom 1.1.
  • the Felt structure at least partially compressed and preferably fixed compressed. Transverse flows in the felt structure are preferably at least limited in the region of the weld seam.
  • the outer diameter of the filter element is further preferably provided larger than the outer diameter of the flat portion of the filter bottom.
  • the filter element 2 consequently protrudes into the region of the bead without touching the bottom of the bead.
  • the outer diameter L3 of the filter element is smaller than the diameter of the portion capsule in the region of the bottom.
  • the sealing seam is provided concentrically to the recess 1.6 in the capsule bottom.
  • the base 1 .1 and the side wall 1 .2 are preferably made as an injection-molded part, preferably made of plastic. Furthermore, the bottom has an energy tanner 8, which in the present case as an annular
  • the energy generator can also have a different cross-section and also need not be provided continuously.
  • a linear sealing seam between the filter element and the bottom of the capsule succeeds.
  • the energy generator is provided on the space 1.7 facing surface of the bottom 1 .1. In the lower illustration, the side wall 1 .2 has been omitted for clarity.
  • L1 inner diameter of the sealed seam for example 22.5 mm
  • L2 outer diameter of the sealed seam for example 25, 0 mm
  • L3 diameter of the filter element for example 31, 0 mm

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)
  • Filtering Materials (AREA)
  • Filtering Of Dispersed Particles In Gases (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Distillation Of Fermentation Liquor, Processing Of Alcohols, Vinegar And Beer (AREA)

Abstract

The present invention relates to a single serve capsule for preparing a beverage, comprising a side wall and a bottom, which together define a space, a filter element being sealed to the bottom within said space.

Description

Portionskapsel mit einem durch Siegeln verbundenen Filterelement  Portion capsule with a filter element connected by sealing
Die vorliegende Erfindung betrifft eine Portionskapsel für die Herstellung eines Getränks mit einer Seitenwand und einem Boden, die gemeinsam einen Raum definieren, wobei innerhalb des Raums ein Filterelement an den Boden gesiegelt ist. The present invention relates to a portion capsule for the manufacture of a drink having a side wall and a bottom, which together define a space, wherein a filter element is sealed to the bottom within the space.
Derartige Portionskapseln sind aus dem Stand der Technik bekannt und werden beispielsweise zur Herstellung von Kaffee oder Tee oder kaffeeartigen Getränken wie Espresso eingesetzt. Beispielsweise sind in den Druckschiften EP 1 792 850 B1 , EP 1 344 722 A1 und US 2003/0172813 A1 Portionskapseln zur Kaffee- und Espressozubereitung offenbart. Such portion capsules are known from the prior art and are used for example for the production of coffee or tea or coffee-like beverages such as espresso. For example, in the documents EP 1 792 850 B1, EP 1 344 722 A1 and US 2003/0172813 A1, portion capsules for making coffee and espresso are disclosed.
Die Portionskapseln sind bevorzugt kegelstumpfförmig oder zylindrisch geformt und werden beispielsweise aus einer tiefgezogenen Kunststofffolie oder im Kunststoffspritzverfahren hergestellt. Sie haben üblicherweise eine Seitenwand mit einem umlaufenden Flansch, eine offene Einfüllseite für ein zur Getränkeherstellung zu extrahierendes und/oder aufzulösendes Getränkesubstrat und einen Kapselboden, wobei zwischen dem Getränkesubstrat und dem Kapselboden ein sich gegen den Kapselboden abstützendes Filterelement angeordnet ist. Nach dem Einführen und Siegeln des Filterelementes an den Portionskapselboden und dem Einfüllen des Getränkesubstrates wird die Portionskapsel mit einer Deckelfolie verschlossen, die beispielsweise auf den Flansch aufgesiegelt oder aufgeklebt wird. The portion capsules are preferably frusto-conical or cylindrical in shape and are produced, for example, from a thermoformed plastic film or by plastic injection molding. They usually have a side wall with a peripheral flange, an open filling side for a beverage substrate to be extracted and / or dissolved beverage substrate and a capsule bottom, wherein between the beverage substrate and the capsule bottom is supported against the capsule bottom filter element. After insertion and sealing of the filter element to the portion capsule bottom and the filling of the beverage substrate, the portion capsule is closed with a lid film, which is sealed or glued, for example, on the flange.
Für die Zubereitung eines Kaffeegetränkes wird die Portionskapsel in eine Brühkammer eines Zubereitungsgerätes eingebracht. Vor, nach oder während des Einführens der Portionskapsel in die Brühkammer wird die Portionskapsel bevorzugt auf ihrer Bodenseite geöffnet und nach dem Abdichten der Brühkammer wird die mit einer Verschlussfolie verschlossene Einfüllseite der Portionskapsel mittels Einstechmitteln angestochen. Anschließend wird Zubereitungsflüssigkeit, vorzugsweise heißes Wasser, unter Druck in die Portionskapsel gefördert. Die Zubereitungsflüssigkeit durchströmt das Getränkesubstrat und extrahiert und/oder löst die für die Getränkeherstellung benötigten Stoffe aus dem Getränkesubstrat. Für die Zubereitung eines Espresso wirkt zum Extrahieren der ätherischen Öle beispielsweise ein Brühwasserdruck von bis zu 20 bar auf das Kaffepulver. Die Portionskapseln gemäß dem Stand der Technik haben jedoch den Nachteil, dass das hergestellte Getränk an seiner Oberfläche vergleichsweise viel Schaum aufweist. For the preparation of a coffee beverage, the portion capsule is introduced into a brewing chamber of a preparation device. Before, after or during the introduction of the portion capsule into the brewing chamber, the portion capsule is preferably opened on its bottom side, and after the brewing chamber has been sealed, the filling side of the portion capsule closed with a closing foil is pierced by piercing means. Subsequently, preparation liquid, preferably hot water, is conveyed under pressure into the portion capsule. The preparation liquid flows through the beverage substrate and extracts and / or dissolves the substances required for the beverage production from the beverage substrate. For the preparation of an espresso, for example, a brewing water pressure of up to 20 bar acts on the coffee powder to extract the essential oils. The portion capsules according to the prior art, however, have the disadvantage that the beverage produced has comparatively much foam on its surface.
Es war deshalb die Aufgabe der vorliegenden Erfindung, eine Portionskapsel zur Verfügung zu stellen, die die Nachteile des Standes der Technik nicht aufweist. It was therefore the object of the present invention to provide a portion capsule to provide that does not have the disadvantages of the prior art.
Gelöst wird die Aufgabe mit einer Portionskapsel für die Herstellung eines Getränks mit einer Seitenwand und einem Boden, die gemeinsam einen Raum definieren, wobei innerhalb des Raums ein Filterelement an den Boden gesiegelt ist und die Siegelnaht kreisringförmig vorgesehen ist und wobei der äußere Durchmesser der Siegelnaht 75 - 85 % des The problem is solved with a portion capsule for the preparation of a beverage with a side wall and a bottom, which together define a space, wherein within the space a filter element is sealed to the bottom and the sealing seam is provided annularly and wherein the outer diameter of the sealed seam 75th - 85% of the
Durchmessers des Filterelementes beträgt. Diameter of the filter element is.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachten Ausführungen gelten für die anderen Gegenstände der vorliegenden Erfindung gleichermaßen und umgekehrt. The statements made on this subject of the present invention apply equally to the other objects of the present invention and vice versa.
Es wurde nun überraschenderweise gefunden, dass eine kreisförmige Siegelnaht, deren äußerer Durchmesser 75 - 85 % des Durchmessers des Filterelementes beträgt, zumindest zu einer sehr geringen Schaumbildung führt. It has now surprisingly been found that a circular sealing seam, whose outer diameter is 75-85% of the diameter of the filter element, leads to at least very little foaming.
Das Filterelement ist scheibenförmig vorgesehen und weist einen kreisförmigen Querschnitt auf. Die Siegelnaht, die das Filterelement mit dem Boden der Portionskapsel stoffschlüssig verbindet, wird vorzugsweise durch Ultraschallschweißen angebracht. Vorzugsweise ist das Filterelement nach dem Siegeln im Bereich der Siegelnaht flüssigkeitsundurchlässig. The filter element is disc-shaped and has a circular cross-section. The sealed seam, which connects the filter element to the bottom of the portion capsule in a material-tight manner, is preferably attached by ultrasonic welding. Preferably, the filter element is liquid impermeable after sealing in the region of the sealing seam.
Vorzugsweise beträgt der innere Durchmesser der Siegelnaht 67 - 77 % des Durchmessers des Filterelementes. Preferably, the inner diameter of the sealed seam is 67-77% of the diameter of the filter element.
In einer bevorzugten Ausführungsform beträgt die Breite der Siegelnaht 1 - 1 ,5 Millimeter. In a preferred embodiment, the width of the sealed seam is 1 - 1, 5 millimeters.
Vorzugsweise weist der Boden der Portionskapsel einen im Wesentlichen ebenen Abschnitt auf, der kreisförmig gestaltet ist und dessen äußerer Durchmesser 84 - 94 % des Preferably, the bottom of the portion capsule has a substantially planar portion which is circular in shape and whose outer diameter is 84-94% of the
Durchmessers des Filterelementes beträgt. An den äußeren Umfang des ebenen Abschnitts schließt sich vorzugsweise eine Sicke an, durch die der ebene Abschnitt etwas beabstandet von einer möglichen Auslage angeordnet ist. Die Sicke bildet außerdem den Übergang zwischen dem ebenen Boden und der Seitenwand und verleiht der Portionskapsel Stabilität. Vorzugsweise erstreckt sich das Filterelement bis in den Bereich der Sicke und überdeckt diese zumindest teilweise, ohne sie zu berühren. Diameter of the filter element is. The outer circumference of the flat portion is preferably followed by a bead, through which the flat portion is arranged slightly spaced from a possible display. The bead also forms the transition between the flat bottom and the side wall and gives the portion capsule stability. Preferably, the filter element extends into the region of the bead and covers it at least partially without touching it.
Gemäß einer bevorzugten Ausführungsform weist der Boden eine Ausnehmung auf, die so groß ist, dass beim Ausströmen/Durchströmen des Getränks durch diese Ausnehmung im Wesentlichen kein Druckverlust entsteht. Diese Ausnehmung ist vorzugsweise bereits in den Kapselboden eingearbeitet, bevor das Filterelement an den Kapselboden gesiegelt wird. Die Ausnehmung ist vor dem Zubereitungsvorgang vorzugsweise mit einer Folie oder dergleichen verschlossen, die abgezogen oder von einem Aufstechorgan durchstochen werden kann. According to a preferred embodiment, the bottom has a recess which is so large that substantially no pressure loss is produced by the outflow / throughflow of the beverage through this recess. This recess is preferably already in the Capsule bottom incorporated before the filter element is sealed to the capsule bottom. The recess is preferably closed before the preparation process with a film or the like, which can be removed or pierced by a piercing.
Vorzugsweise ist der Durchmesser des Filterelementes kleiner, insbesondere 1 - 5 % kleiner, als die Innenabmessung der Portionskapsel in Bodenhöhe. Preferably, the diameter of the filter element is smaller, in particular 1 - 5% smaller than the inner dimension of the portion capsule at ground level.
Vorzugsweise weist das Filterelement eine Filzstruktur auf. Insbesondere handelt es sich dabei um eine Nadelfilzstruktur. Vorzugsweise besteht das Filterelement aus mindestens einer Filzstruktur und einer Trägerstruktur, insbesondere einer Gewebestruktur, wobei besonders bevorzugt die Filzstruktur zumindest einen Teilabschnitt des Volumens der Trägerstruktur ausmacht. Vorzugsweise erstreckt sich die Filzstruktur über den gesamten Querschnitt der Trägerstruktur, besonders bevorzugt aber nur über einen Teilbereich der Höhe. Vorzugsweise ist die Filzstruktur form-, kraft- und/oder stoffschlüssig mit der Trägerstruktur verbunden. Vorzugsweise weist das Filterelement zwei oder mehr Filzstrukturen auf, die durch die Trägerstruktur vorzugsweise voneinander getrennt sind. Die Dicke der beiden Filzstrukturen kann gleich oder unterschiedlich sein. Vorzugsweise ist eine dem Pulver oder Tee zugewandte Filzstruktur dünner als die dem Kapselboden zugewandte Filzstruktur oder umgekehrt. Vorzugsweise wird die Oberfläche der Filzstruktur behandelt, beispielsweise wärmebehandelt, um beispielsweise lose Fasern zu fixieren. Vorzugsweise wird das eine Filzstruktur aufweisende Filterelement lediglich in die Kapsel, insbesondere auf deren Boden, eingelegt. Das Filterelement kann aber auch mit der Kapsel, insbesondere deren Boden, insbesondere stoffschlüssig, verbunden werden. Beim Perforieren kann das Perforationsmittel in dieses Filterelement eindringen. Vorzugsweise werden mehrere Filterelemente, die eine oder mehrere Filzstrukturen und eine Trägerstruktur aufweisen, in der Kapsel übereinander angeordnet und ggf. miteinander verbunden. Preferably, the filter element has a felt structure. In particular, this is a needled felt structure. Preferably, the filter element consists of at least one felt structure and a support structure, in particular a fabric structure, wherein particularly preferably the felt structure makes up at least a portion of the volume of the support structure. Preferably, the felt structure extends over the entire cross section of the support structure, but more preferably over only a portion of the height. Preferably, the felt structure is positively, positively and / or materially connected to the support structure. Preferably, the filter element has two or more felt structures, which are preferably separated from each other by the support structure. The thickness of the two felt structures may be the same or different. Preferably, a felt structure facing the powder or tea is thinner than the felt structure facing the capsule bottom, or vice versa. Preferably, the surface of the felt structure is treated, for example, heat-treated, for example, to fix loose fibers. Preferably, the filter element having a felt structure is merely inserted into the capsule, in particular on its bottom. However, the filter element can also be connected to the capsule, in particular its bottom, in particular materially bonded. When perforating the perforating agent can penetrate into this filter element. Preferably, a plurality of filter elements, which have one or more felt structures and a carrier structure, are arranged one above the other in the capsule and possibly joined together.
Ein eine Trägerstruktur, insbesondere eine Gewebestruktur, und eine Filzstruktur aufweisendes Filterelement wird beispielsweise dadurch hergestellt, dass eine Gewebestruktur bestehend aus Längs- und Querfäden zur Verfügung gestellt wird. Für die Konstruktion eines Filzes, insbesondere eines Nadelfilzes, werden vorzugsweise Fasereinheiten ausgewählt von 0.8 - 7 dtex. Die Verbindung der Einzelfasern miteinander zu einem Filz und/oder dessen Verankerung in der Trägerstruktur findet vorzugsweise durch den Produktionsprozess des Vernadelns statt. Dabei werden Nadeln mit umgekehrten Widerhaken in das vorgelegte Faserpaket mit hoher Geschwindigkeit eingestochen und wieder herausgezogen. Durch die Widerhaken werden die Fasern über eine Vielzahl entstehender Schlaufen miteinander und/oder mit dem Trägergewebe verschlungen. A filter element having a support structure, in particular a fabric structure, and a felt structure is produced, for example, by providing a fabric structure consisting of longitudinal and transverse threads. For the construction of a felt, in particular a needle felt, fiber units are preferably selected from 0.8 to 7 dtex. The connection of the individual fibers together to form a felt and / or its anchoring in the support structure preferably takes place through the production process of needling. In this case, needles are inserted with reverse barbs in the submitted fiber package at high speed and pulled out again. The barbs cause the fibers to overflow a variety of resulting loops entwined with each other and / or with the carrier fabric.
Das Trägerelement aufweisend eine oder mehrere Filzstrukturen umfasst bevorzugt eine Massenbelegung (auch als Grammatur oder Flächengewicht bezeichnet) zwischen 100 und 800 Gramm pro Quadratmeter, besonders bevorzugt zwischen 200 und 650 Gramm pro Quadratmeter und ganz besonders bevorzugt von im Wesentlichen 150 - 250 Gramm pro Quadratmeter für die Herstellung von Tee und 600 - 700 Gramm pro Quadratmeter für die Herstellung von Kaffee, Espresso oder dergleichen. Das Filterelement bzw. das Vlies weist bevorzugt eine Dicke zwischen 0,8 und 3,3 Millimetern, besonders bevorzugt zwischen 1 ,1 und 3,0 Millimetern und ganz besonders bevorzugt 1 ,2 - 1 ,4 Millimetern für die Herstellung von Tee und 2,6 - 3,0 Millimetern für die Herstellung von Kaffee auf. The support element comprising one or more felt structures preferably comprises a mass occupancy (also referred to as grammage or basis weight) between 100 and 800 grams per square meter, more preferably between 200 and 650 grams per square meter, and most preferably substantially 150-250 grams per square meter for the production of tea and 600 - 700 grams per square meter for the production of coffee, espresso or the like. The filter element or the fleece preferably has a thickness of between 0.8 and 3.3 millimeters, more preferably between 1.1 and 3.0 millimeters and most preferably 1.2-2.4 millimeters for the production of tea and 2 , 6 - 3.0 millimeters for the production of coffee.
Gemäß einem weiteren erfindungsgemäßen oder bevorzugten Gegenstand der vorliegenden Erfindung sind die Seitenwand und der Boden ein Spritzgussteil. According to a further inventive or preferred subject matter of the present invention, the side wall and the bottom are an injection molded part.
Die zu diesem Gegenstand der vorliegenden Erfindung gemachte Offenbarung gilt für die anderen Gegenstände gleichermaßen und umgekehrt. The disclosure made on this subject of the present invention applies equally to the other objects and vice versa.
Vorzugsweise sind die Seitenwand und der Boden einstückig vorgesehen. Preferably, the side wall and the bottom are integrally provided.
Vorzugsweise ist am Boden der Portionskapsel ein Energiegeber vorgesehen. Dieser Energiegeber kann kreisringförmig, rechteckig, qudratisch, oval sein oder eine sonstige geschlossene Form aufweisen. Der Energiegeber kann kontinuierlich oder mit Preferably, an energy generator is provided at the bottom of the portion capsule. This energy generator can be annular, rectangular, qudratisch, oval or have any other closed shape. The energy generator can be continuous or with
Unterbrechungen versehen sein, Vorzugsweise ist der Energiegeber einstückig mit dem Boden vorgesehen und wird beim Spritzgießen gemeinsam mit diesem hergestellt. Preferably, the energy generator is provided integrally with the bottom and is produced in the injection molding together with this.
Vorzugsweise ist der Querschnitt des Energiegebers dreieckig, rechteckig, quadratisch, kreisringförmig oder oval. Der Querschnitt kann aber auch eine beliebige andere Form aufweisen, so lang der Energiegeber aus der Oberfläche heraussteht. Der Energiegeber ist vorzugsweise auf der Oberfläche des Bodens vorgesehen, der dem Raum, in dem sich das zu extrahierende und/oder aufzulösende Getränkesubstrat befindet, zugewandt ist. Preferably, the cross section of the energy generator is triangular, rectangular, square, circular or oval. The cross section may also have any other shape, as long as the energy generator protrudes from the surface. The energy generator is preferably provided on the surface of the floor which faces the space in which the beverage substrate to be extracted and / or dissolved is located.
Im Folgenden wird die Erfindung anhand der Figuren 1 und 2 erläutert. Dieser Erläuterungen sind lediglich beispielhaft und schränken den allgemeinen Erfindungsgedanken nicht ein. Die Erläuterungen gelten für alle Gegenstände der vorliegenden Erfindung gleichermaßen. The invention is explained below with reference to FIGS. 1 and 2. These explanations are merely exemplary and do not limit the general inventive concept. The explanations apply equally to all articles of the present invention.
Figur 1 zeigt eine erste Ausführungsform der erfindungsgemäßen Portionskapsel. FIG. 1 shows a first embodiment of the invention Portion capsule.
Figur 2 zeigt eine weitere Ausführungsform der erfindungsgemäßen FIG. 2 shows a further embodiment of the invention
Portionskapsel.  Portion capsule.
Figur 1 zeigt die erfindungsgemäße Portionskapsel 1 , die in dem vorliegenden Fall im Wesentlichen kegelstumpfförmig ausgeführt ist. Die Portionskapsel 1 weist eine umlaufende Seitenwand 1.2 und einen Bodenbereich 1.1 auf. Die Seitenwand 1 .2 und der Bodenbereich 1 .1 spannen einen Raum 1 .7 auf, in dem sich ein Filterelement 2 befindet, das in dem vorliegenden Fall eine Filzstruktur aufweist. Das Filterelement 2 wird mittels des Werkzeugs 3, das an seinem unteren Ende Siegelflächen 3.1 aufweist, an den Boden 1 .1 der FIG. 1 shows the portion capsule 1 according to the invention, which in the present case has a substantially frusto-conical shape. The portion capsule 1 has a circumferential side wall 1.2 and a bottom portion 1.1. The side wall 1 .2 and the bottom portion 1 .1 span a space 1 .7, in which there is a filter element 2, which has a felt structure in the present case. The filter element 2 is by means of the tool 3, which has at its lower end sealing surfaces 3.1, to the bottom 1 .1 of the
Portionskapsel 1 unter Ausbildung einer Siegelnaht 7 gesiegelt. Dabei wird die Portion capsule 1 sealed to form a sealed seam 7. Here is the
Portionskapsel 1 zumindest teilweise in einem Gegenhalter 6 gehalten. Der Boden 1 .1 der Portionskapsel weist einen kreisförmigen ebenen Abschnitt auf, an dessen äußerem Ende sich eine kreisringförmige Sicke 1.3 anschließt, die gleichzeitig den Übergangsbereich 5 zwischen dem Boden und der Seitenwand darstellt. Durch die Sicke 1.3 ist der ebene Abschnitt des Bodens von einer möglichen Auflage, auf der die Sicke aufsteht, beabstandet. In dem ebenen Abschnitt ist eine Ausnehmung 1 .6, hier eine kreisförmige Ausnehmung, vorgesehen, die vorzugsweise so groß ist, dass beim Ausströmen des hergestellten Portion capsule 1 at least partially held in a counter-holder 6. The bottom 1 .1 of the portion capsule has a circular planar portion, at its outer end an annular bead surrounds 1.3, which simultaneously represents the transition region 5 between the bottom and the side wall. By the bead 1.3, the flat portion of the bottom of a possible support on which the bead rests, spaced. In the flat portion, a recess 1 .6, here a circular recess, is provided, which is preferably so large that during the outflow of the produced
Getränkes aus der Portionskapsel kein nennenswerter Druckverlust entsteht und/oder dass das hergestellte Getränk nicht verwirbelt wird. Sobald das Filterelement 2 an den Boden der Portionskapsel gesiegelt ist, insbesondere durch Ultraschall gesiegelt ist, und das Werkzeug 3 aus der Portionskapsel entfernt worden ist, wird diese mit einem Getränkesubstrat, beispielsweise mit Kaffeemehl, befüllt und sodann vorzugsweise mit einer Folie Beverage from the portion capsule no significant pressure loss arises and / or that the beverage produced is not swirled. Once the filter element 2 is sealed to the bottom of the portion capsule, in particular ultrasonically sealed, and the tool 3 has been removed from the portion capsule, it is filled with a beverage substrate, for example ground coffee, and then preferably with a foil
verschlossen, die an den Flansch 1 .4, der sich an die Seitenwand kreisringförmig anschließt, gesiegelt oder geklebt wird. Dafür weist der Flansch vorzugsweise eine Ausbuchtung 1 .5 auf, die als definierte Siegelfläche dient. sealed, which is sealed or glued to the flange 1 .4, which adjoins the side wall in an annular manner. For this, the flange preferably has a bulge 1 .5, which serves as a defined sealing surface.
Erfindungsgemäß ist nun vorgesehen, dass die Schweißnaht kreisringförmig vorgesehen ist und dass der äußere Durchmesser der Siegelnaht L2 75 - 85 %, hier 70,6 %, des According to the invention it is now provided that the weld is provided annularly and that the outer diameter of the sealing seam L2 75 - 85%, here 70.6% of the
Durchmessers L3 des Filterelementes beträgt. Durch diese Anordnung der Siegelnaht wird bei der Erzeugung des Getränkes, insbesondere bei der Herstellung von Kaffee, kein nennenswerter Schaum erzeugt. Vorzugsweise beträgt der innere Durchmesser L1 der Siegelnaht 67 - 77 %, hier 72,5 %, des Durchmessers des Filterelementes. Vorzugsweise beträgt die Breite der Siegelnaht 1 ,5 Millimeter. Beim Schweißen wird zum einen das Diameter L3 of the filter element is. By this arrangement, the seal seam is produced in the production of the beverage, especially in the production of coffee, no appreciable foam. The inner diameter L1 of the sealed seam is preferably 67-77%, in this case 72.5%, of the diameter of the filter element. Preferably, the width of the sealed seam is 1, 5 millimeters. When welding is on the one hand
Filterelement 2 mit dem Kapselboden 1.1 verbunden. Gleichzeitig wird aber auch die Filzstruktur zumindest teilweise zusammengedrückt und vorzugsweise zusammengedrückt fixiert. Querströmungen in der Filzstruktur sind im Bereich der Schweißnaht vorzugsweise zumindest eingeschränkt. Der äußere Durchmesser des Filterelements ist, weiterhin bevorzugt größer vorgesehen als der äußere Durchmesser des ebenen Abschnitts des Filterbodens. Vorzugsweise beträgt der äußere Durchmesser L4 des ebenen Abschnitts des Kapselbodens 84 - 94 %, hier 90 %, des Durchmessers L3 des Filterelementes. Das Filterelement 2 ragt folglich in den Bereich der Sicke hinein, ohne den Grund der Sicke zu berühren. Weiterhin bevorzugt ist der äußere Durchmesser L3 des Filterelementes kleiner als der Durchmesser der Portionskapsel im Bereich des Bodens. Vorzugsweise wird die Siegelnaht konzentrisch zu der Ausnehmung 1.6 im Kapselboden vorgesehen. Filter element 2 connected to the capsule bottom 1.1. At the same time, however, the Felt structure at least partially compressed and preferably fixed compressed. Transverse flows in the felt structure are preferably at least limited in the region of the weld seam. The outer diameter of the filter element is further preferably provided larger than the outer diameter of the flat portion of the filter bottom. Preferably, the outer diameter L4 of the flat portion of the capsule bottom 84 - 94%, here 90%, of the diameter L3 of the filter element. The filter element 2 consequently protrudes into the region of the bead without touching the bottom of the bead. Further preferably, the outer diameter L3 of the filter element is smaller than the diameter of the portion capsule in the region of the bottom. Preferably, the sealing seam is provided concentrically to the recess 1.6 in the capsule bottom.
Bei der Ausführungsform gemäß Figur 2 sind der Boden 1 .1 und die Seitenwand 1 .2 vorzugsweise als ein Spritzgussteil, vorzugsweise aus Kunststoff gefertigt. Ferner weist der Boden einen Energiegerber 8 auf, der in dem vorliegenden Fall als kreisringförmige In the embodiment according to FIG. 2, the base 1 .1 and the side wall 1 .2 are preferably made as an injection-molded part, preferably made of plastic. Furthermore, the bottom has an energy tanner 8, which in the present case as an annular
Erhebung hier mit einem dreieckigen Querschnitt vorgesehen ist. Der Fachmann versteht, dass der Energiegeber auch einen anderen Querschnitt aufweisen kann und auch nicht kontinuierlich vorgesehen sein muss. Mit dem Energiegeber gelingt eine linienförmige Siegelnaht zwischen dem Filterelement und dem Boden der Kapsel. Der Energiegeber ist auf der dem Raum 1.7 zugewandten Oberfläche des Bodens 1 .1 vorgesehen. In der unteren Darstellung wurde die Seitenwand 1 .2 der Übersichtlichkeit halber weggelassen. Survey provided here with a triangular cross-section. The skilled person understands that the energy generator can also have a different cross-section and also need not be provided continuously. With the energy generator, a linear sealing seam between the filter element and the bottom of the capsule succeeds. The energy generator is provided on the space 1.7 facing surface of the bottom 1 .1. In the lower illustration, the side wall 1 .2 has been omitted for clarity.
Bezugszeichenliste: LIST OF REFERENCE NUMBERS
1 Portionskapsel 1 portion capsule
1 .1 Bodenbereich  1 .1 floor area
1 .2 Seitenwand  1 .2 side wall
1 .3 Übergang Bodenbereich/Seitenwand, Sicke  1 .3 transition floor area / side wall, surround
1 .4 Flansch  1 .4 flange
1 .5 Ausbuchtung im Flansch, Siegelfläche  1 .5 bulge in the flange, sealing surface
1 .6 Ausnehmung  1 .6 recess
1 .7 Raum  1 .7 room
2 Filterelement, Filz  2 filter element, felt
3 Siegelwerkzeug  3 sealing tool
3.1 Siegelfläche 3.1 sealing surface
4  4
5 Übergangsbereich zwischen dem Boden 1.1 und der Seitenwand 1.2 5 transition area between the bottom 1.1 and the side wall 1.2
6 Gegenhalter 6 counterholds
7 Siegelnaht  7 sealed seam
8 Energiegeber  8 energy generator
L1 innerer Durchmesser der Siegelnaht, beispielsweise 22,5 mm L1 inner diameter of the sealed seam, for example 22.5 mm
L2 äußerer Durchmesser der Siegelnaht, beispielsweise 25, 0 mmL2 outer diameter of the sealed seam, for example 25, 0 mm
L3 Durchmesser des Filterelementes, beispielsweise 31 ,0 mm L3 diameter of the filter element, for example 31, 0 mm
L4 Durchmesser des ebenen Teils des Bodens, beispielsweise 28,0 mm  L4 Diameter of the flat part of the floor, for example 28.0 mm

Claims

Patentansprüche: claims:
1 . Portionskapsel (1 ) für die Herstellung eines Getränks mit einer Seitenwand (1.2) und einem Boden (1 .1 ), die gemeinsam einen Raum (1.7) definieren, wobei innerhalb des Raums (1 .7) ein Filterelement (2) an den Boden (1 .1 ) gesiegelt ist, dadurch gekennzeichnet, dass die Siegelnaht (7) kreisringförmig vorgesehen ist und dass der äußere Durchmesser (L1 ) der Siegelnaht 75 - 85 % des Durchmessers (L3) des Filterelementes (2) beträgt. 1 . Portion capsule (1) for the preparation of a beverage having a side wall (1.2) and a bottom (1 .1) which together define a space (1.7), wherein inside the space (1 .7) a filter element (2) to the bottom (1 .1) is sealed, characterized in that the sealing seam (7) is provided annularly and that the outer diameter (L1) of the sealing seam 75 - 85% of the diameter (L3) of the filter element (2).
2. Portionskapsel (1 ) nach Anspruch 1 , dadurch gekennzeichnet, dass der innere 2. portion capsule (1) according to claim 1, characterized in that the inner
Durchmesser (L1 ) der Siegelnaht 67 - 77 % des Durchmessers (L3) des  Diameter (L1) of the sealing seam 67 - 77% of the diameter (L3) of the
Filterelementes (2) beträgt.  Filter element (2) is.
3. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch 3. portion capsule (1) according to one of the preceding claims, characterized
gekennzeichnet, dass die Breite der Siegelnaht 1 - 1 ,5 Millimeter beträgt.  characterized in that the width of the sealed seam is 1 - 1, 5 millimeters.
4. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch 4. portion capsule (1) according to one of the preceding claims, characterized
gekennzeichnet, dass der Boden einen im Wesentlichen ebenen Abschnitt aufweist, dessen äußerer Durchmesser (L4) 84 - 94 % des Durchmessers (L3) des  characterized in that the bottom has a substantially planar portion whose outer diameter (L4) is 84-94% of the diameter (L3) of the
Filterelementes (2) beträgt.  Filter element (2) is.
5. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch 5. portion capsule (1) according to one of the preceding claims, characterized
gekennzeichnet, dass der Boden eine Ausnehmung aufweist, die so groß ist, dass beim Ausströmen des Getränks durch die Ausnehmung (1 .6) im Wesentlichen kein Druckverlust entsteht.  characterized in that the bottom has a recess which is so large that substantially no pressure loss occurs when the beverage flows through the recess (1 .6).
6. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch 6. portion capsule (1) according to one of the preceding claims, characterized
gekennzeichnet, dass der Durchmesser (L3) des Filterelementes 1 - 5 % kleiner ist als die Innenabmessung der Portionskapsel in Bodenhöhe.  in that the diameter (L3) of the filter element is 1-5% smaller than the inside dimension of the portion capsule at ground level.
7. Portionskapsel (1 ) nach einem der voranstehenden Ansprüche, dadurch 7. portion capsule (1) according to one of the preceding claims, characterized
gekennzeichnet, dass das Filterelement (2) zumindest abschnittsweise eine  characterized in that the filter element (2) at least in sections a
Filzstruktur aufweist.  Felt structure has.
8. Portionskapsel (1 ) nach Anspruch 9, dadurch gekennzeichnet, dass das Filzelement mehrlagig vorgesehen ist. 8. portion capsule (1) according to claim 9, characterized in that the felt element is provided in multiple layers.
9. Portionskapsel (1 ) nach einem der voranstehenden Ansprüchen oder nach dem 9. portion capsule (1) according to one of the preceding claims or according to the
Oberbegriff von Patentanspruch 1 , dadurch gekennzeichnet, dass die Seitenwand (1 .2) und der Boden (1.1 ) ein Spritzgussteil sind. The preamble of claim 1, characterized in that the side wall (1 .2) and the bottom (1.1) are an injection molded part.
10. Portionskapsel nach Anspruch 9, dadurch gekennzeichnet, dass am Boden (1 .1 ) ein Energiegeber (8) vorgesehen ist. 10. portion capsule according to claim 9, characterized in that at the bottom (1 .1) an energy generator (8) is provided.
1 1 . Portionskapsel nach Anspruch 10, dadurch gekennzeichnet, dass sich der 1 1. Portion capsule according to claim 10, characterized in that the
Energiegeber (8) auf dem Innenraum zugwandten Oberfläche des Bodens befindet.  Energy generator (8) located on the interior zugwendten surface of the soil.
EP13771121.4A 2012-09-27 2013-09-27 Single serve capsule comprising a filter element connected thereto by sealing Active EP2900572B1 (en)

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PL13771121T PL2900572T3 (en) 2012-09-27 2013-09-27 Single serve capsule comprising a filter element connected thereto by sealing
SI201330503A SI2900572T1 (en) 2012-09-27 2013-09-27 Single serve capsule comprising a filter element connected thereto by sealing
RS20170082A RS55635B1 (en) 2012-09-27 2013-09-27 Single serve capsule comprising a filter element connected thereto by sealing
HRP20170156TT HRP20170156T1 (en) 2012-09-27 2017-01-31 Single serve capsule comprising a filter element connected thereto by sealing

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DE102012109186.2A DE102012109186A1 (en) 2012-09-27 2012-09-27 Portion capsule with a filter element connected by sealing
PCT/EP2013/070251 WO2014049143A1 (en) 2012-09-27 2013-09-27 Single serve capsule comprising a filter element connected thereto by sealing

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UA113667C2 (en) 2017-02-27
CN104640786B (en) 2018-02-27
HRP20170156T1 (en) 2017-03-24
AU2013322527A1 (en) 2015-05-14
HUE030616T2 (en) 2017-05-29
PH12015500690B1 (en) 2015-05-25
TN2015000111A1 (en) 2016-06-29
AU2013322527B2 (en) 2017-02-02
ZA201502277B (en) 2016-11-30
DE102012109186A1 (en) 2014-03-27
KR101986488B1 (en) 2019-06-10
RU2647445C2 (en) 2018-03-15
EP2900572B1 (en) 2016-11-09
WO2014049143A1 (en) 2014-04-03
JP2015534481A (en) 2015-12-03
DK2900572T3 (en) 2017-02-06
SI2900572T1 (en) 2017-04-26
MX2015003472A (en) 2015-06-10
IL237954B (en) 2019-01-31
MX352981B (en) 2017-12-15
RU2015115577A (en) 2016-11-20
CA2886299C (en) 2020-07-21
KR20150067223A (en) 2015-06-17
US9969546B2 (en) 2018-05-15
JP2018023803A (en) 2018-02-15
PT2900572T (en) 2017-02-14
RS55635B1 (en) 2017-06-30
SA515360192B1 (en) 2016-06-16
CN104640786A (en) 2015-05-20
HK1209398A1 (en) 2016-04-01
DOP2015000075A (en) 2015-07-31
US20150274411A1 (en) 2015-10-01
NZ706316A (en) 2017-06-30
PH12015500690A1 (en) 2015-05-25
JP6511498B2 (en) 2019-05-15
CA2886299A1 (en) 2014-04-03
ES2612947T3 (en) 2017-05-19
SG11201502013VA (en) 2015-05-28

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