EP3272673A1 - Capsule de préparation d'un produit alimentaire liquide - Google Patents

Capsule de préparation d'un produit alimentaire liquide Download PDF

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Publication number
EP3272673A1
EP3272673A1 EP16180144.4A EP16180144A EP3272673A1 EP 3272673 A1 EP3272673 A1 EP 3272673A1 EP 16180144 A EP16180144 A EP 16180144A EP 3272673 A1 EP3272673 A1 EP 3272673A1
Authority
EP
European Patent Office
Prior art keywords
capsule
filter
receiving space
liquid food
outlet
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.)
Withdrawn
Application number
EP16180144.4A
Other languages
German (de)
English (en)
Inventor
Roland Affolter
Markus BRÖNNIMANN
Tim Thilla
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.)
Delica AG
Original Assignee
Delica AG
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 Delica AG filed Critical Delica AG
Priority to EP16180144.4A priority Critical patent/EP3272673A1/fr
Publication of EP3272673A1 publication Critical patent/EP3272673A1/fr
Withdrawn legal-status Critical Current

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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
    • B65D85/8052—Details of the outlet
    • 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

Definitions

  • the present invention relates to a capsule for the preparation of a liquid food according to the preamble of claim 1.
  • capsules are often used for the preparation of different drinks, especially coffee or tea, in home use.
  • capsules which are designed as disposable products, comprise a capsule body which forms a receiving space for at least one starting substance for the preparation of the liquid food.
  • the starting substance is in many cases roasted and ground coffee powder, but in some cases also dried tea leaves.
  • soluble products in general or concentrates are also suitable.
  • the capsule body is usually closed by a lid.
  • pressurized water is passed through the capsule, resulting in extraction or dissolution of the material contained in the capsule.
  • the said capsule consists of substantially air and water impermeable materials.
  • the capsule comprises a circular capsule body which forms a receiving space for the beverage ingredients.
  • an inner part is kept stable in position, which comprises a discharge nozzle for the beverage product produced with the capsule and a filter.
  • the filter is composed of radially extending struts on which a filter paper is stretched.
  • beverage ingredients substantially on the filter.
  • a filter cake Under a filter cake is generally understood a particle layer, which is deposited on the filter medium during a filtration process.
  • the filter cake on the one hand leads to a significant improvement in filter performance, since it takes over the actual filter function from a certain thickness.
  • the filter cake also increases the flow resistance of the filter.
  • An increasing flow resistance requires an increasing power requirement for the flow through the filter. With limited power, the volume flow through the filter decreases.
  • the forces acting on the filter cake can lead to the so-called cake compression, an accelerated compression of the filter cake and thus a comparatively rapid increase in the flow resistance.
  • the pressure increase can therefore be considerable.
  • the filter surface covers almost the entire base area of the capsule body.
  • the capsule for preparing a liquid food comprises a preferably rotationally symmetrical capsule body, which forms a receiving space for at least one starting substance for the preparation of the liquid food.
  • the capsule further comprises a spout for dispensing the liquid food and a filter fluidly disposed between the receiving space and the spout.
  • the filter is preceded by a filter pre-chamber (FRP) for the separation of at least one solid contained in the starting material in fluid form.
  • FRP filter pre-chamber
  • the capsule With the filter pre-chamber, the capsule has an area which, when used, specifically serves for the controlled formation of a filter cake. Since only a portion of the starting substance contained in the capsule deposits as a filter cake, a lower flow resistance through the filter and thus a lower internal capsule pressure can be achieved while maintaining the quality of the filtration.
  • the design of the filter cake can be controlled by the geometry of the filter pre-chamber, whereby a better quality filtration can be achieved.
  • the receiving space can be connected to the filter prechamber via at least one inlet, in particular a plurality of inlets.
  • the Filtervorhunt can substantially circular, in particular circular or annular, and formed preferably be arranged centrally in or on the capsule body. Such a configuration is particularly advantageous in rotationally symmetrical capsule bodies.
  • the inlets may be arranged in an annular manner or only over a circular segment on the filter prechamber.
  • Such a flexible embodiment of the capsule makes it possible to adapt them to the respective application.
  • the Filtervorhunt can be arranged outside the receiving space on the capsule body and the at least one inlet to be formed as an opening in the capsule body.
  • the arrangement of the filter pre-chamber outside the receiving space, the wall of the capsule body can act as a partition between the receiving space and the filter pre-chamber. This allows a constructive simplification of the capsule.
  • the Filtervorhunt may be limited by the capsule body and a particular plug-shaped cover, which at least partially covers the capsule body.
  • the said cover can be non-positively and / or positively connected, in particular via a latching connection, with the capsule body.
  • This modular design of the capsule makes it possible to adapt the geometry of the filter pre-chamber to the respective application by the use of different cover elements.
  • the filter may be formed as a wall portion with a plurality of filter openings, as a filter paper or perforated or perforable plastic or metal foil.
  • the type of filter medium can be adapted to the size of the particles to be filtered out.
  • At least one additional filter can be arranged fluidly. This is a multi-stage filtration of the liquid food to be prepared possible. Such is required in various applications, especially when a substantial freedom of suspended matter in the food is to be achieved.
  • the direction of flow through the filter can run parallel to perpendicular to the direction of flow through the additional filter.
  • the direction of flow through the filter may be substantially parallel or perpendicular to the direction of flow through the additional filter.
  • the spout can be designed as a spout. This makes it possible, in particular, to design a capsule according to the invention and a corresponding beverage production device in such a way that a liquid food emerging from the capsule does not come into contact with the device. As a result, contamination of the liquid food can be largely avoided by accumulating liquid residues in the device. This is particularly advantageous if the device is to be used for producing various types of liquid food. In addition, the cleaning and maintenance of the device can be facilitated.
  • the outlet nozzle and the capsule body may be integrally formed. This allows a structurally simple embodiment of the capsule, which is easy to manufacture.
  • the outlet nozzle may be directed towards an opening of the receiving space.
  • the opening of the receiving space may be closed with a lid covering the capsule body.
  • the lid may be bonded to the capsule body by gluing or ultrasonic welding. Due to the one-piece design of outlet nozzle and capsule body can be easily achieved a precise relative positioning of this. This is particularly advantageous when the outlet nozzle in the direction of the opening of the Receiving space is directed and both the receiving space and the outlet nozzle is closed with a lid covering the capsule body.
  • the direction of flow through the filter can run parallel to the direction of flow through the outlet.
  • the direction of flow through the filter can run perpendicular to the direction of flow through the outlet.
  • the direction of flow through the filter can also correspond to the direction of flow through the outlet.
  • the direction of flow through the filter may, when the capsule is used as intended, extend in particular along the direction of gravity. Thereby, an inadvertent and undesirable leakage of liquid from the capsule after its use in removal from a device for preparing a liquid food can be substantially avoided.
  • Another aspect of the present invention relates to a system comprising a capsule as described above and to an apparatus for preparing a liquid food.
  • the capsule can be inserted into the device for the preparation of the liquid food.
  • the direction of flow through the filter of the capsule in the preparation of the liquid food can in particular run along the direction of gravity.
  • the capsule body and optionally also the outlet nozzle and the cover can be injection molded or thermoformed be made.
  • the use of an injection molding process provides great flexibility with regard to the configuration of the shape of the capsule body. Although this is limited in a deep drawing process, but it is thus possible to produce especially oxygen and / or aroma-dense capsules. However, oxygen and / or aroma resistance is not limited to deep-drawn capsules.
  • the capsule is oxygen-tight, the penetration of oxygen into the capsule during storage of a starting substance contained therein is substantially avoided. As a result, aging of the starting substance, for example of coffee powder, by oxidation can be avoided.
  • An oxygen-tight capsule is usually also aroma-tight. Accordingly, leakage of flavors contained in the starting substance during storage thereof within the capsule is substantially prevented. Oxygen or aroma resistance is required in order to achieve a minimum shelf life of 12 months, preferably 18 months, especially in the case of coffee.
  • an oxygen- and / or aroma-tight capsule is understood as meaning a capsule in which coffee powder can be stored at atmospheric temperature at room temperature for at least 12 months, preferably 18 months, without the coffee powder changing which impairs the quality of a coffee beverage made therefrom.
  • the film material used for this purpose can have an OTR (Oxygen Transmission Rate) of less than 5, preferably less than 2.
  • OTR Oxygen Transmission Rate
  • the OTR indicates the amount of oxygen diffused per unit area and time through a film, in the unit: cm 3 / m 2 /day/0.21 bar.
  • the capsule body and the outlet nozzle, and optionally also the cover may be made of a single- or multi-layered plastic, preferably containing polypropylene. This is a material that has proven itself for the production of beverage packaging.
  • polypropylene can be processed very well by injection molding.
  • FIG. 1 shows the underside of a capsule body 2 for a capsule according to the invention 1.
  • the Filtervorhunt 6 is arranged outside the receiving space 3 formed by the capsule body.
  • the receiving space 3 is connected to the Filtervorhunt 6 via the inlets 7, 7 '.
  • the Filter pre-chamber 6 is limited by the capsule body 2 and the cover 8.
  • the filter openings 9 are arranged on the cover 8.
  • FIGS. 2 to 4 are closer details to the capsule body 2 according to FIG. 1 to recognize.
  • the capsule body 2 forms a receiving space 3 for at least one starting substance for the preparation of a liquid food.
  • an outlet 4 is attached, which is designed here in the form of a discharge nozzle.
  • the said outlet connection 4 is directed in the direction of the opening of the receiving space 3.
  • the capsule body 2 and the outlet nozzle 4 are integrally formed.
  • the Filtervorhunt 6 is limited by the capsule body 2 and a cover this partially covering 8.
  • the receiving space 3 and the filter prechamber 6 are connected to each other via the inlets 7, 7 '.
  • the filter 5 is designed here as a circumferential region with a plurality of filter openings 9.
  • FIG. 5 shows the underside of a capsule body 2 of an alternative embodiment of a capsule according to the invention 1.
  • the filter 5 is designed as a filter paper, which is arranged between the capsule body 2 and the cover 8.
  • the inlets 7, 7 'to the filter prechamber 6 are shown in said figure.
  • FIGS. 6 to 8 are more details on the capsule according to FIG. 5 seen.
  • the capsule body 2 here also forms a receiving space 3 for at least one starting substance for the preparation of a liquid food.
  • an outlet connection 4 is also arranged.
  • the Filtervorhunt 6 is limited by the capsule body 2, the cover 8 and the filter 5, which is designed here as a circular disc of filter paper.
  • the filter 5 is arranged directly below the outlet nozzle 4.
  • FIG. 9 shows the underside of the capsule body 2 of another embodiment of a capsule according to the invention 1.
  • the said capsule has next to the filter 5, which is designed here as an annular disc of filter paper, via an additional filter 10.
  • the additional filter 10 is designed as a circular disc of filter paper.
  • Both the filter 5 and the additional filter 10 are arranged between the capsule body 2 and the cover 8.
  • the filter 5 and the additional filter 10 may also consist of a perforated foil, in particular of plastic or metal, preferably of aluminum.
  • the filter 5 consists of a perforated foil and the additional filter 10 of filter paper.
  • the capsule body 2 in turn forms a receiving space 3 for at least one starting substance for the preparation of a liquid food.
  • the inlets 7, 7 ' are mounted, which connect the receiving space 3 with the Filtervor hamper 6.
  • pressurized water is introduced into the receiving space 3, where it is mixed with the at least one starting substance for preparation of the liquid food comes into contact.
  • Both liquid and solids pass through the inlets 7, 7 'and enter the filter prechamber 6, where they form a filter cake on the filter 5.
  • the liquid is passed on to the additional filter 10, from where it passes into the outlet nozzle 4, which directs the liquid food from the capsule 1.
  • FIG. 13 shows a further embodiment of an inventive capsule 1.
  • the capsule 1 shown has a cup-like capsule body 2 with an inlet side and an outlet side.
  • the inlet side is formed by the lid 11 covered with the opening of the capsule body 2.
  • At the bottom of the capsule body 2 of the outlet 4 is attached as a spout.
  • the insert 12 comprises the filter 5, which is designed as a filter plate with the filter openings 9.
  • the cover plate 14 extends, on which rests the starting substance for the preparation of the liquid food in the delivery state of the capsule 1.
  • the Filtervorhunt 6 which is fluidly connected via the inlets 7, 7 'with the receiving space 3.
  • the outlet nozzle 4 is covered by a bursting membrane 15, which bursts when using the capsule 1 by the building up in the receiving space 3 pressure.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Apparatus For Making Beverages (AREA)
EP16180144.4A 2016-07-19 2016-07-19 Capsule de préparation d'un produit alimentaire liquide Withdrawn EP3272673A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
EP16180144.4A EP3272673A1 (fr) 2016-07-19 2016-07-19 Capsule de préparation d'un produit alimentaire liquide

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP16180144.4A EP3272673A1 (fr) 2016-07-19 2016-07-19 Capsule de préparation d'un produit alimentaire liquide

Publications (1)

Publication Number Publication Date
EP3272673A1 true EP3272673A1 (fr) 2018-01-24

Family

ID=56497613

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Application Number Title Priority Date Filing Date
EP16180144.4A Withdrawn EP3272673A1 (fr) 2016-07-19 2016-07-19 Capsule de préparation d'un produit alimentaire liquide

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EP (1) EP3272673A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10676273B2 (en) 2003-01-24 2020-06-09 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1440911A1 (fr) 2003-01-24 2004-07-28 Kraft Foods R & D, Inc. Cartouche pour la préparation de boissons
WO2011154690A1 (fr) * 2010-06-11 2011-12-15 Kraft Food R&D, Inc Cartouche et procédé permettant de préparer des boissons
WO2015124534A1 (fr) * 2014-02-21 2015-08-27 Delica Ag Capsule pourvue d'un corps, de préférence à symétrie de révolution
WO2015189689A2 (fr) * 2014-06-13 2015-12-17 Kraft Foods R&D, Inc. Cartouche pour la préparation de boissons

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP1440911A1 (fr) 2003-01-24 2004-07-28 Kraft Foods R & D, Inc. Cartouche pour la préparation de boissons
WO2011154690A1 (fr) * 2010-06-11 2011-12-15 Kraft Food R&D, Inc Cartouche et procédé permettant de préparer des boissons
WO2015124534A1 (fr) * 2014-02-21 2015-08-27 Delica Ag Capsule pourvue d'un corps, de préférence à symétrie de révolution
WO2015189689A2 (fr) * 2014-06-13 2015-12-17 Kraft Foods R&D, Inc. Cartouche pour la préparation de boissons

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US10676273B2 (en) 2003-01-24 2020-06-09 Koninklijke Douwe Egberts B.V. Cartridge and method for the preparation of beverages

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