EP0521186B1 - Flexible offene Verpackung und Verfahren zur Herstellung derselben - Google Patents

Flexible offene Verpackung und Verfahren zur Herstellung derselben Download PDF

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Publication number
EP0521186B1
EP0521186B1 EP91111209A EP91111209A EP0521186B1 EP 0521186 B1 EP0521186 B1 EP 0521186B1 EP 91111209 A EP91111209 A EP 91111209A EP 91111209 A EP91111209 A EP 91111209A EP 0521186 B1 EP0521186 B1 EP 0521186B1
Authority
EP
European Patent Office
Prior art keywords
membrane
gusset
capsule
rim
extraction
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.)
Expired - Lifetime
Application number
EP91111209A
Other languages
English (en)
French (fr)
Other versions
EP0521186A1 (de
Inventor
Olivier Fond
Petr Masek
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.)
Societe des Produits Nestle SA
Nestle SA
Original Assignee
Societe des Produits Nestle SA
Nestle SA
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 Societe des Produits Nestle SA, Nestle SA filed Critical Societe des Produits Nestle SA
Priority to DK91111209.2T priority Critical patent/DK0521186T3/da
Priority to ES91111209T priority patent/ES2065583T3/es
Priority to DE69105494T priority patent/DE69105494T2/de
Priority to AT91111209T priority patent/ATE114576T1/de
Priority to EP91111209A priority patent/EP0521186B1/de
Priority to US07/899,341 priority patent/US5637335A/en
Priority to ZA924488A priority patent/ZA924488B/xx
Priority to TW081104784A priority patent/TW223042B/zh
Priority to NZ243240A priority patent/NZ243240A/en
Priority to AU18415/92A priority patent/AU658192B2/en
Priority to PH44546A priority patent/PH31487A/en
Priority to FI922893A priority patent/FI108019B/fi
Priority to CA002072317A priority patent/CA2072317C/en
Priority to MYPI92001083A priority patent/MY108787A/en
Priority to NO922613A priority patent/NO301535B1/no
Priority to BR929202611A priority patent/BR9202611A/pt
Priority to JP17709392A priority patent/JP3244777B2/ja
Priority to KR1019920011937A priority patent/KR100189384B1/ko
Priority to MX9203968A priority patent/MX9203968A/es
Publication of EP0521186A1 publication Critical patent/EP0521186A1/de
Application granted granted Critical
Publication of EP0521186B1 publication Critical patent/EP0521186B1/de
Priority to GR950400244T priority patent/GR3015003T3/el
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/025—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into pods
    • 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
    • B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
    • B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
    • 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
    • B65D2565/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D2565/38—Packaging materials of special type or form
    • B65D2565/381—Details of packaging materials of special type or form
    • B65D2565/385—Details of packaging materials of special type or form especially suited for or with means facilitating recycling

Definitions

  • the invention relates to an open flexible packaging for making a drink, in the form of a capsule suitable for pressurized fluid extraction machines.
  • capsules for the preparation of a drink from a pulverulent substance is motivated by several reasons: hygiene, optimal conservation of coffee, ease of use, better control of the quality of the coffee obtained and good reproducibility of the extraction conditions.
  • These capsules can be in open form, with the upper and lower surfaces permeable in order to allow the extraction fluid to pass.
  • the open capsules In order to maintain the quality of the coffee by protecting it against humidity and oxygen, the open capsules must be overwrapped in airtight sachets or have watertight peelable lids on both sides.
  • the capsules should be able to be manufactured on the same packaging machines and to be extracted on the same extraction machines.
  • Filter paper capsules containing compacted ground coffee are described for example in patent CH 527,592 or patent application EP-A-0272.432.
  • the object of the present invention is to produce an open capsule, of frustoconical or inverted frustoconical arrangement made up of flexible materials, which keeps a shape in particular during the extraction, so that the extraction takes place correctly by passing the extraction fluid without preferential paths through the bed of pulverulent substance and which can be extracted in conventional espresso machines in a sealed manner without an adaptation device.
  • the packaging according to the invention consists of a body in the form of a frustoconical or inverted frustoconical cavity provided with a rim, containing a pulverulent substance for the preparation of a drink closed by a membrane.
  • the body is deformable or extensible to adapt exactly to the different extraction devices, that the body and the membrane are made of flexible, permeable plastic material or that the bottom of the body and the central part of the membrane are perforated or the membrane is made of filter paper.
  • the side wall of the body of the capsule extends beyond the cavity containing the substance. Being flexible, the body is deformable longitudinally and laterally, which allows the adaptation of the capsule to the filter holder during extraction.
  • the capsule has a wide rim, so that the extraction takes place in a sealed manner, the rim acting as a seal between the machine and the filter holder.
  • the annular wall of the body has in its part close to the large base of the truncated cone a bellows which allows the extension of the cavity as well as the sealing of the extraction.
  • the extraction can be carried out without modification of the parts of the extraction device, that is to say that it does not require an adapter.
  • the packaging according to the invention can also be extracted with the device comprising a grid which is the subject of European patent application No. 91107462 of the applicant.
  • the packaging can also be extracted in a conventional espresso-type coffee machine using a specific adapter as described in the European patent applications filed on the same day as the present application by the applicant under the titles "Cartridge extraction device adaptable to any espresso machine ",” Device for extracting cartridges "and” Device for extracting cartridges ".
  • the invention further relates to a method for manufacturing the packaging, characterized in that the body of the capsule having a rim is thermoformed in a first film, the cavity thus formed is filled with a pulverulent composition for beverage and the composition is packed in the cavity under a stream of inert gas, the membrane formed from a second film is sealed on the body of the capsule, the bottom of the body and if necessary the membrane are perforated and then the capsule is cut .
  • the body has a concave bellows 5 on its annular wall.
  • the bellows 6 is convex.
  • the peripheral part 7 of the membrane is welded to the rim 3 of the body and is in the form of a washer after cutting, while its central part 8 is welded to the internal rim of the bellows 5.
  • the precut membrane 2 is welded to the top of the bellows 6.
  • the membrane 2 can be cut after its welding beyond the bellows 6.
  • the capsules have perforations 9 in the bottom of the body and 10 in the central part of the membrane.
  • the body 1 is formed at 11 by thermoforming.
  • we dose and cup ground coffee 13 then we weld the thermoformed membrane 2 on the rim 3 of the body.
  • the metering, tamping and welding operations of the membrane are carried out under nitrogen.
  • the bottom of the body and the membrane are pierced with hot needles on their central part (9, 10).
  • the process illustrated applies to the manufacture of the capsule of FIG. 1.
  • the body 1 is thermoformed at the same time as an annular groove 14.
  • the central cavity is then filled with ground coffee and it is packed.
  • the bottom of the cavity is then perforated, then a membrane 2 (perforated or permeable) is welded along the zones of crown welding 15 and 16.
  • the capsule is then cut along the cutting lines 17 and 18. It can be seen that has thus created an annular bellows 5 which allows the extension of the capsule and its adaptation to the various extraction filter holders, at the same time as a washer 17 has been produced at the large base of the truncated cone of the body allowing maintain the general shape of the capsule while ensuring sufficient flexibility. Furthermore, the sealing of the extraction is thus ensured. This process applies to the manufacture of the capsule of FIG. 2.
  • the process illustrated in Figure 6 differs from that of Figure 5 in that the bellows formed is convex. Furthermore, the membrane 2 is precut, then welded to the filled cavity at the top 19 of the bellows. Alternatively, the membrane can be welded and then cut beyond the bellows. Finally, the capsule is cut out according to 20. It would be possible, according to a variant not shown of this process, to operate in the same way by welding the precut membrane on the internal rim of a concave bellows or else by welding the membrane on the internal rim of the bellows, then by cutting it beyond the bellows.
  • the thin and flexible walls of the body and of the membrane may be made of thermoformable plastic material such as polyethylene, polyamide, polypropylene or a polyester, for example polyethylene terephthalate, for example from 20 to 150 ⁇ m in single layer thickness or multi-layer or in cellulose-based material such as a paper complex for example of grammage 12 to 25 g / m2 and plastic material as described above, for example from 10 to 50 ⁇ m thick.
  • the body and the membrane are perforated in their central part.
  • the openings may be gaping or may appear to close. In the latter case, the capsule will be extracted with a specific filter holder fitted with fins on the flow grid, the purpose of which is to enlarge the slots under the effect of the pressure.
  • the body and the membrane can also be made of a complex of woven or non-woven polyester or polypropylene, for example of grammage 15 to 40 g / m2.
  • the membrane can also be made of filter paper of grammage 15 to 40 g / m2 in the case of the versions of FIGS. 2 and 3.
  • the capsule according to the invention can be of variable size according to the volume of drink that one wishes to prepare.
  • the dose of coffee contained can vary between 5 and 20 g
  • the diameter of the capsule is between 2.5 and 8 cm
  • the thickness of the coffee bed between 10 and 25 mm.
  • the capsule is filled with a pulverulent composition for the preparation of a drink.
  • This substance is preferably roasted and ground coffee, but can also be tea, soluble coffee, a mixture of ground coffee and soluble coffee or a chocolate product.
  • the extraction fluid will be directed in a vertical flow so as to pass through the entire bed of powdery composition without risk of creating lateral flow flow.
  • the capsule according to the invention will be individually overwrapped with a thin material constituting an oxygen and moisture-tight barrier, for example a copolymer of vinyl alcohol and ethylene, if necessary loaded silica or metallized, polyvinylidene chloride or a multilayer of aluminum, paper and plastic.
  • a thin material constituting an oxygen and moisture-tight barrier, for example a copolymer of vinyl alcohol and ethylene, if necessary loaded silica or metallized, polyvinylidene chloride or a multilayer of aluminum, paper and plastic.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Apparatus For Making Beverages (AREA)
  • Supplying Of Containers To The Packaging Station (AREA)
  • Control And Other Processes For Unpacking Of Materials (AREA)
  • Making Paper Articles (AREA)
  • Laminated Bodies (AREA)
  • Polymerisation Methods In General (AREA)
  • Tea And Coffee (AREA)

Claims (8)

  1. Biegsame offene Verpackung für die Zubereitung eines Getränks, die die Form einer an die Maschinen zur Extraktion durch Druckfluid angepaßten Portionspackung hat und aus einem Körper (1) besteht, der die Form einer kegelstumpfförmigen oder umgekehrt kegelstumpfförmigen, mit einem abgewinkelten Rand (3) versehenen Vertiefung hat, die eine pulverförmige Substanz für die Zubereitung eines Getränks enthält, und der durch eine Membran (2) geschlossen ist, dadurch gekennzeichnet, daß der Körper (1) verformbar oder ausdehnbar ist, so daß er sich an die verschiedenen Extraktionsvorrichtungen genau anpaßt, daß der Körper (1) und die Membran (2) aus durchlässigem biegsamem Kunststoff bestehen oder daß der Boden des Körpers (1) und der zentrale Teil der Membran (2) perforiert sind oder daß die Membran (2) aus Filterpapier besteht.
  2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß die ringförmige Wand des Körpers (1) in ihrem der großen Basis des Kegelstumpfes nahen Teil einen Balg (5, 6) besitzt, der die Ausdehnung der Vertiefung sowie die Abdichtung der Extraktion und den Durchfluß des Extraktionsfluids durch das Bett aus pulverförmiger Substanz gestattet.
  3. Verfahren zur Herstellung einer Verpackung nach Anspruch 1, dadurch gekennzeichnet, daß der einen abgewinkelten Rand (3) aufweisende Körper (1) der Portionspackung in einem ersten Film warmgeformt wird, die so geformte Vertiefung mit einer pulverförmigen Zusammensetzung für ein Getränk gefüllt wird und die Zusammensetzung in der Vertiefung unter einem Inertgasstrom verdichtet wird, die aus einem zweiten Film gebildete Membran (2) auf dem Körper (1) der Kapsel versiegelt wird, der Boden des Körpers (1) und ggf. die Membran (2) perforiert werden und dann die Portionspackung ausgeschnitten wird.
  4. Verfahren nach Anspruch 3, dadurch gekennzeichnet, daß bei der Warmformung des Körpers um die Vertiefung herum ein ringförmiger Balg (5, 6) gebildet wird.
  5. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß ein konkaver Balg (5) gebildet wird, daß die Membran (2) auf dem abgewinkelten Rand (3) des Körpers und auf dem abgewinkelten Rand des Balgs (5) versiegelt wird, daß die Membran (2) an erster Stelle außerhalb des inneren Rands des Balgs (5) und an zweiter Stelle mit dem abgewinkelten Rand (3) des Körpers ausgeschnitten wird.
  6. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß ein konkaver Balg (5) gebildet wird, daß die Membran (2) ausgeschnitten und die zuvor ausgeschnittene Membran auf dem inneren Rand des Balgs (5) versiegelt wird und daß dann die Portionspackung ausgeschnitten wird.
  7. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß ein konvexer Balg (6) gebildet wird, daß die Membran (2) ausgeschnitten wird und die zuvor ausgeschnittene Membran auf dem Scheitel des Balgs (6) versiegelt wird und daß dann die Portionspackung ausgeschnitten wird.
  8. Verfahren nach Anspruch 4, dadurch gekennzeichnet, daß ein konvexer Balg (6) gebildet wird, daß die Membran (2) auf dem Scheitel des Balgs (6) versiegelt wird, daß die Membran (2) an erster Stelle außerhalb des Balgs (6) und an zweiter Stelle mit dem abgewinkelten Rand (3) des Körpers ausgeschnitten wird.
EP91111209A 1991-07-05 1991-07-05 Flexible offene Verpackung und Verfahren zur Herstellung derselben Expired - Lifetime EP0521186B1 (de)

Priority Applications (20)

Application Number Priority Date Filing Date Title
DK91111209.2T DK0521186T3 (da) 1991-07-05 1991-07-05 Blød emballage og fremgangsmåde til dens fremstilling
ES91111209T ES2065583T3 (es) 1991-07-05 1991-07-05 Contenedor flexible abierto y procedimiento de fabricacion.
DE69105494T DE69105494T2 (de) 1991-07-05 1991-07-05 Flexible offene Verpackung und Verfahren zur Herstellung derselben.
AT91111209T ATE114576T1 (de) 1991-07-05 1991-07-05 Flexible offene verpackung und verfahren zur herstellung derselben.
EP91111209A EP0521186B1 (de) 1991-07-05 1991-07-05 Flexible offene Verpackung und Verfahren zur Herstellung derselben
US07/899,341 US5637335A (en) 1991-07-05 1992-06-16 Capsule package containing roast and ground coffee
ZA924488A ZA924488B (en) 1991-07-05 1992-06-18 An open and flexible package and a process for its production
TW081104784A TW223042B (de) 1991-07-05 1992-06-18
AU18415/92A AU658192B2 (en) 1991-07-05 1992-06-19 An open and flexible package and a process for its production
NZ243240A NZ243240A (en) 1991-07-05 1992-06-19 Open, flexible package for beverage preparation in an extraction machine - process for manufacture
PH44546A PH31487A (en) 1991-07-05 1992-06-22 Capsule package containing roast and ground coffee.
FI922893A FI108019B (fi) 1991-07-05 1992-06-22 Avoin joustava pakkaus ja menetelmä sen valmistamiseksi
CA002072317A CA2072317C (en) 1991-07-05 1992-06-25 Open and flexible package and a process for its production
MYPI92001083A MY108787A (en) 1991-07-05 1992-06-26 An open and flexible package and a process for its production.
NO922613A NO301535B1 (no) 1991-07-05 1992-07-02 Åpen og fleksibel pakning, samt fremgangsmåte ved fremstilling av denne
JP17709392A JP3244777B2 (ja) 1991-07-05 1992-07-03 開放した可撓性のあるパッケージおよび製法
BR929202611A BR9202611A (pt) 1991-07-05 1992-07-03 Embalagem flexivel aberta e processo de fabricacao
KR1019920011937A KR100189384B1 (ko) 1991-07-05 1992-07-04 개방되고 가요성있는 포장용기 및 그 제조방법
MX9203968A MX9203968A (es) 1991-07-05 1992-07-06 Envase flexible abierto y procedimiento de fabricacion.
GR950400244T GR3015003T3 (en) 1991-07-05 1995-02-08 Flexible open packaging and method for making it.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP91111209A EP0521186B1 (de) 1991-07-05 1991-07-05 Flexible offene Verpackung und Verfahren zur Herstellung derselben

Publications (2)

Publication Number Publication Date
EP0521186A1 EP0521186A1 (de) 1993-01-07
EP0521186B1 true EP0521186B1 (de) 1994-11-30

Family

ID=8206906

Family Applications (1)

Application Number Title Priority Date Filing Date
EP91111209A Expired - Lifetime EP0521186B1 (de) 1991-07-05 1991-07-05 Flexible offene Verpackung und Verfahren zur Herstellung derselben

Country Status (20)

Country Link
US (1) US5637335A (de)
EP (1) EP0521186B1 (de)
JP (1) JP3244777B2 (de)
KR (1) KR100189384B1 (de)
AT (1) ATE114576T1 (de)
AU (1) AU658192B2 (de)
BR (1) BR9202611A (de)
CA (1) CA2072317C (de)
DE (1) DE69105494T2 (de)
DK (1) DK0521186T3 (de)
ES (1) ES2065583T3 (de)
FI (1) FI108019B (de)
GR (1) GR3015003T3 (de)
MX (1) MX9203968A (de)
MY (1) MY108787A (de)
NO (1) NO301535B1 (de)
NZ (1) NZ243240A (de)
PH (1) PH31487A (de)
TW (1) TW223042B (de)
ZA (1) ZA924488B (de)

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EP0521186A1 (de) 1993-01-07
MX9203968A (es) 1992-11-01
KR100189384B1 (ko) 1999-06-01
CA2072317A1 (en) 1993-01-06
FI108019B (fi) 2001-11-15
FI922893A0 (fi) 1992-06-22
KR930002194A (ko) 1993-02-22
PH31487A (en) 1998-11-03
NO301535B1 (no) 1997-11-10
ATE114576T1 (de) 1994-12-15
JP3244777B2 (ja) 2002-01-07
US5637335A (en) 1997-06-10
DE69105494T2 (de) 1995-04-06
NZ243240A (en) 1994-06-27
NO922613L (no) 1993-01-06
AU1841592A (en) 1993-01-07
DK0521186T3 (da) 1995-04-18
GR3015003T3 (en) 1995-05-31
CA2072317C (en) 2002-12-03
MY108787A (en) 1996-11-30
TW223042B (de) 1994-05-01
AU658192B2 (en) 1995-04-06
NO922613D0 (no) 1992-07-02
JPH05261023A (ja) 1993-10-12
BR9202611A (pt) 1993-03-16
ES2065583T3 (es) 1995-02-16
FI922893A (fi) 1993-01-06
DE69105494D1 (de) 1995-01-12
ZA924488B (en) 1993-03-31

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