NO302696B1 - Sealed efforts to make beverages - Google Patents

Sealed efforts to make beverages Download PDF

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Publication number
NO302696B1
NO302696B1 NO921812A NO921812A NO302696B1 NO 302696 B1 NO302696 B1 NO 302696B1 NO 921812 A NO921812 A NO 921812A NO 921812 A NO921812 A NO 921812A NO 302696 B1 NO302696 B1 NO 302696B1
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Norway
Prior art keywords
plastic
cup
lid
insert
thick
Prior art date
Application number
NO921812A
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Norwegian (no)
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NO921812L (en
NO921812D0 (en
Inventor
Olivier Fond
Original Assignee
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.)
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Publication date
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Priority claimed from EP91107650A external-priority patent/EP0512148A1/en
Application filed by Nestle Sa filed Critical Nestle Sa
Publication of NO921812D0 publication Critical patent/NO921812D0/en
Publication of NO921812L publication Critical patent/NO921812L/en
Publication of NO302696B1 publication Critical patent/NO302696B1/en

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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
    • B65D85/8061—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
    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Food Science & Technology (AREA)
  • Packages (AREA)
  • Apparatus For Making Beverages (AREA)
  • Closures For Containers (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Tea And Coffee (AREA)
  • Containers Having Bodies Formed In One Piece (AREA)
  • Coating Apparatus (AREA)
  • Medicines Containing Antibodies Or Antigens For Use As Internal Diagnostic Agents (AREA)
  • Steroid Compounds (AREA)
  • Non-Alcoholic Beverages (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
  • Nitrogen Condensed Heterocyclic Rings (AREA)
  • Laminated Bodies (AREA)
  • Separation Using Semi-Permeable Membranes (AREA)

Abstract

The invention relates to a closed cartridge provided in order to be extracted under pressure, containing a substance (3) for preparing a beverage, comprising a dish (2) with an upper face and lateral wall having a substantially frustoconical shape and a lower face (4) having a diameter greater than the upper face, in which the lower face is a protective cover welded onto the perimeter of the lower edge of the dish and consists of an oxygen-impermeable flexible material chosen from the group consisting of aluminium, an aluminium/plastic composite, an aluminium/plastic/paper composite, pure plastic or multi-layers. <IMAGE>

Description

Foreliggende oppfinnelse vedrører en forseglet innsats som er beregnet for å ekstraheres under trykk og som inneholder en substans for fremstilling av en drikkevare, innbefattende en kopp med en bunn, en i det vesentlige frustokonisk sidevegg, en sirkulær leppe som er på koppen og har større diameter enn bunnen, og et lokk sveiset til periferien til koppens leppe. The present invention relates to a sealed insert which is intended to be extracted under pressure and which contains a substance for the manufacture of a beverage, comprising a cup with a bottom, a substantially frustoconical side wall, a circular lip which is on the cup and has a larger diameter than the bottom, and a lid welded to the periphery of the lip of the cup.

GB-PS 938.617 beskriver en innsats med et indre filter som danner to rom og som er ment å ekstraheres av et system som gjennomhuller den øvre og nedre flaten før ekstraksjon. Ulempene med denne innsatsen er at på grunn av flatenes tykkelse, er det nødvendig å anvende et relativt farlig gjennomhullingssystem som hverken sikrer perfekt enhet under ekstraksjonen eller lett frigjøring ved endt ekstraksjon. GB-PS 938,617 describes an insert with an internal filter forming two compartments and intended to be extracted by a system which pierces the upper and lower surfaces prior to extraction. The disadvantages of this effort are that, due to the thickness of the surfaces, it is necessary to use a relatively dangerous piercing system which neither ensures perfect unity during the extraction nor easy release at the end of the extraction.

Det er flere årsaker for anvendelse av kapsler for fremstilling av en drikkevare, først og fremst ved kaffe av espresso-typen som ekstraheres under trykk, nemlig: hygiene, optimal lagring av kaffen, bruksvennlighet, bedre kvalitets-kontroll på kaffen og god produserbarhet av ekstraksjons-betingelsene. Blandt et stort antall tilgjengelige kapsler er det kun forseglede kapsler som åpnes under påvirkning av injesert vanntrykk som tilfredsstiller de ovennevnte kravene. Kapsler av denne typen er kjennetegnet av deres åpnings-system. There are several reasons for the use of capsules for the production of a beverage, primarily for espresso-type coffee that is extracted under pressure, namely: hygiene, optimal storage of the coffee, ease of use, better quality control of the coffee and good producibility of the extraction - the conditions. Among a large number of capsules available, only sealed capsules that are opened under the influence of injected water pressure satisfy the above requirements. Capsules of this type are characterized by their opening system.

Kapslene i henhold til CH 605 293 har svekkesoner som rives opp, fortrinnsvis under påvirkning av trykk. Denne løsningen er beheftet med den ulempen at kapselens kompleksitet og pris øker fordi materialene som brukes må behandles meget nøyaktig dersom åpningen av kapselen skal være korrekt og reprodu-serbar . The capsules according to CH 605 293 have zones of weakness which tear open, preferably under the influence of pressure. This solution has the disadvantage that the capsule's complexity and price increase because the materials used must be processed very precisely if the opening of the capsule is to be correct and reproducible.

Innsatsen i henhold til foreliggende oppfinnelse har en mye lavere pris, betydelig enklere å fremstille og kan brukes ved fremstilling av en drikkevare, spesielt espressokaffe, d.v.s. hvor kaffen ekstraheres under et trykk på 1 til 15 har. The insert according to the present invention has a much lower price, is significantly easier to manufacture and can be used in the manufacture of a beverage, especially espresso coffee, i.e. where the coffee is extracted under a pressure of 1 to 15 has.

Foreliggende oppfinnelse vedrører en forseglet innsats i henhold til krav l's ingress, bestående av et lokk som er sveiset til omkretsen av koppens leppe, hvilket lokk består av et fleksibelt materiale som er ugjennomtrengelig for oksygen, valgt fra gruppen bestående av aluminium, en aluminium/plastkompositt, en aluminium/plast/papirkompositt, ren plast eller flerlagsplast, og at lokket eller bunnen har en så lav materialstyrke at de er ment å rives opp kun under påvirkning av trykk fra ekstraksjonsfluidumet ved begynnelsen av ekstraksjonsprosessen, slik at innsatsen kan være uten filter og uten svekkesone. The present invention relates to a sealed insert according to claim 1's preamble, consisting of a lid that is welded to the circumference of the lip of the cup, which lid consists of a flexible material impermeable to oxygen, selected from the group consisting of aluminum, an aluminum/plastic composite , an aluminum/plastic/paper composite, pure plastic or multi-layered plastic, and that the lid or base has such a low material strength that it is intended to tear open only under the influence of pressure from the extraction fluid at the beginning of the extraction process, so that the insert can be without a filter and without a weakening zone.

Innsatsen i henhold til oppfinnelsen kan ekstraheres ved hjelp av fremgangsmåten og med systemet som er vist i europeisk patentsøknad 91 107 462.3. Ekstraksjonssystemet i henhold til denne patentsøknaden gjør det mulig å ekstrahere denne forenklede innsatsen under gode betingelser. For å ekstrahere kapselen er det enten lokket eller bunnen av koppen som rives opp under påvirkning av ekstraksjonsvæsken. Dersom det er lokket, blir koppens bunn først åpnet av vann-injektoren under innføringen av innsatsen i ekstraksjonssystemet og lokket rives opp under trykkøkningen og etter bruk kan innsatsen lett fjernes og er intakt med et minimum av tapt kaffepulver eller pakkemateriale. The insert according to the invention can be extracted using the method and with the system shown in European patent application 91 107 462.3. The extraction system according to this patent application makes it possible to extract this simplified insert under good conditions. To extract the capsule, it is either the lid or the bottom of the cup that is torn open under the influence of the extraction liquid. If there is a lid, the bottom of the cup is first opened by the water injector during the introduction of the insert into the extraction system and the lid is torn open during the increase in pressure and after use the insert can be easily removed and is intact with a minimum of lost coffee powder or packaging material.

Lokket er vanligvis sveiset til omkretsen av koppen ved varm-forsegling, hvor delen som skal sveises omfatter en sveise-lakk på sine motstående flater. Den nedre leppen til koppen kan også være brettet tilbake på lokket for krymping. Sveising, enten alene eller i forbindelse med krymping, gir en innsats som er istand til å motstå trykk på opptil 15 bar under ekstraksjonsprosessen. The lid is usually welded to the circumference of the cup by heat-sealing, where the part to be welded comprises a welding varnish on its opposite surfaces. The lower lip of the cup may also be folded back onto the lid for shrinkage. Welding, either alone or in conjunction with shrinking, provides an insert capable of withstanding pressures of up to 15 bar during the extraction process.

Innsatsen er fyllt med en substans for fremstilling av en drikkevare. Denne substansen er fortrinnsvis brent og malt kaffe, men kan også være te, løselig kaffe, blanding av malt kaffe og oppløselig kaffe, et sjokoladebasert produkt eller ethvert annet dehydrert spiselig produkt. The insert is filled with a substance for the production of a beverage. This substance is preferably roasted and ground coffee, but can also be tea, soluble coffee, a mixture of ground coffee and soluble coffee, a chocolate-based product or any other dehydrated edible product.

Koppen er frustokonisk, halvkuleformet eller et frustopyrami-dalt element. Bunnen av koppen behøver nødvendigvis ikke være flat, men kan også anta de ovennevnte geometrier. The cup is frustoconical, hemispherical or a frustopyrami-valley element. The bottom of the cup does not necessarily have to be flat, but can also assume the above-mentioned geometries.

Hoveddelen av kapslen, nemlig koppen som kan ha en frustokonisk form og halvstiv, kan være fremstilt av aluminium med en tykkelse på mellom 20 og 100 um, ren plast eller flerlags plast, en papp/aluminium/plastkompositt eller en papp/plastkompositt. The main part of the capsule, namely the cup which can have a frustoconical shape and semi-rigid, can be made of aluminum with a thickness of between 20 and 100 µm, pure plastic or multi-layered plastic, a cardboard/aluminum/plastic composite or a cardboard/plastic composite.

Det fleksible lokket til kapselen kan være fremstilt av et materiale valgt fra 15 til 60 um tykk aluminium og et laminat bestående av enten 1) 20 til 60 g/m<3>papir, 20 til 60 pm tykk plast og 5 til 20 pm tykk aluminium eller 2) 5 til 30 um tykk EVOH eller PVDC og 20 til 100 um tykk plast (PP, PE eller PA) eller 3) PET (5 til 30 um) og 20 til 100 um plast (PP, PE) eller metallisert PET eller PET forsynt med et øvre rensesjikt (som for eksempel inneholder Si02). The flexible lid of the capsule can be made from a material selected from 15 to 60 µm thick aluminum and a laminate consisting of either 1) 20 to 60 g/m<3> paper, 20 to 60 µm thick plastic and 5 to 20 µm thick aluminum or 2) 5 to 30 um thick EVOH or PVDC and 20 to 100 um thick plastic (PP, PE or PA) or 3) PET (5 to 30 um) and 20 to 100 um plastic (PP, PE) or metallized PET or PET provided with an upper cleaning layer (containing, for example, SiO2).

Av disse materialene vil aluminium rives lettest og renest; når en flerlags film brukes, vil nærværet av papirfibre og strekking av plastsjiktet danne et nettverk ved riveposi-sjonen som er gunstig for å holde bunnen av kapselen intakt og redusere fordelingen av kaffekornene, samtidig som man sikrer en homogen ekstraksjon av kaffesjiktet. Of these materials, aluminum will tear the easiest and cleanest; when a multi-layered film is used, the presence of paper fibers and stretching of the plastic layer will form a network at the tear position which is beneficial for keeping the bottom of the capsule intact and reducing the distribution of the coffee grains, while ensuring a homogeneous extraction of the coffee layer.

Oppfinnelsen vil nå bli beskrevet mer detaljert med hen-visning til de medfølgende tegninger, hvor The invention will now be described in more detail with reference to the accompanying drawings, where

figur 1 skjematisk viser en innsats i henhold til opp-f innelsen. Figure 1 schematically shows an insert according to the invention.

Figur 2 viser skjematisk en andre utførelsesform. Figure 2 schematically shows a second embodiment.

Figur 3 viser skjematisk en tredje utførelsesform. Figure 3 schematically shows a third embodiment.

Innsatsen 1 omfatter en kopp 2 med en bunn 5 og en frustokonisk sidevegg 6. Koppen er fremstilt av 50 um tykk aluminium. Innsatsen inneholder kaffe 3 og er lukket av et lokk 4 av aluminium/papirkompositt. Lokket er sveiset til omkretsen 7 av koppens leppe. The insert 1 comprises a cup 2 with a bottom 5 and a frustoconical side wall 6. The cup is made of 50 µm thick aluminium. The insert contains coffee 3 and is closed by a lid 4 of aluminium/paper composite. The lid is welded to the circumference 7 of the lip of the cup.

Innsatsen 6 i figur 2 omfatter en kopp 2, indentisk med den som er vist I figur 1, bortsett fra at leppen 9 til koppen er videre og kan derved brettes tilbake, d.v.s. krympes på omkretsen til lokket 4. Materialene som er brukt er de samme som i figur 1. The insert 6 in Figure 2 comprises a cup 2, identical to that shown in Figure 1, except that the lip 9 of the cup is further and can thereby be folded back, i.e. is crimped on the circumference of the lid 4. The materials used are the same as in figure 1.

Innsatsen 30 i figur 3 har et filterpapir 31 på lokket 4 som er sveiset til omkretsen av lokket og til omkretsen av koppen 2. The insert 30 in figure 3 has a filter paper 31 on the lid 4 which is welded to the circumference of the lid and to the circumference of the cup 2.

Innsatsen i henhold til oppfinnelsen er av den typen som åpnes under påvirkning av trykk, men er enklere og mer økonomisk enn kjente innsatser med hensyn til utforming og produksjon. The insert according to the invention is of the type that opens under the influence of pressure, but is simpler and more economical than known inserts with regard to design and production.

Forklaring av forkortelser: Explanation of abbreviations:

PVDC = polyvinylidenklorid PVDC = polyvinylidene chloride

EVOE = kopolymer av etylen og vinylalkohol EVOE = copolymer of ethylene and vinyl alcohol

PP = polypropylen PP = polypropylene

PE = polyetylen PE = polyethylene

PET = polyester PET = polyester

PÅ = polyamid ON = polyamide

Claims (4)

1. Forseglet innsats (1, 8, 30) som er beregnet for å ekstraheres under trykk og som inneholder en substans (3) for fremstilling av en drikkevare, innbefattende en kopp (2) med en bunn (5), en i det vesentlige frustokonisk sidevegg (6), en sirkulær leppe (7, 9) som er på koppen (2) og har større diameter enn bunnen (5), og et lokk (4) sveiset til periferien av koppens leppe, karakterisert vedat lokket (4) består av et fleksibelt materiale ugjennomtrengelig for oksygen valgt fra gruppen bestående av aluminium, en aluminium/plastkompositt, en aluminium/plast/papirkompositt, ren plast eller flerlags plast, og at lokket (4) eller bunnen (5) har en så lav materialstyrke at de er ment å rives opp kun under påvirkning av trykk fra ekstraksjonsfluidet ved begynnelsen av ekstraksjonsprosessen, slik at innsatsen kan være uten filter og uten svekkesone.1. Sealed insert (1, 8, 30) intended to be extracted under pressure and containing a substance (3) for the manufacture of a beverage, comprising a cup (2) with a base (5), a substantially frustoconical side wall (6), a circular lip (7, 9) which is on the cup (2) and has a larger diameter than the bottom (5), and a lid (4) welded to the periphery of the lip of the cup, characterized in that the lid (4) consists of a flexible material impermeable to oxygen selected from the group consisting of aluminum, an aluminum/plastic composite, an aluminum/plastic/paper composite, pure plastic or multi-layered plastic, and that the lid (4) or the bottom (5) have such a low material strength that they are intended to be torn up only under the influence of pressure from the extraction fluid at the beginning of the extraction process, so that the insert can be without a filter and without a weakening zone. 2. Innsats (1, 8, 30) i henhold til krav 1,karakterisert vedat lokket (4) er krympet på koppens (2) leppe (9).2. Insert (1, 8, 30) according to claim 1, characterized in that the lid (4) is crimped onto the lip (9) of the cup (2). 3. Innsats (1, 8, 30) i henhold til krav 1 eller 2,karakterisert vedat koppen (2) er fremstilt av et materiale valgt fra 20 til 100 pm tykt aluminium, en ren plast eller flerlags plast, en papp/aluminium/plastkompositt eller en papp/plastkompositt.3. Insert (1, 8, 30) according to claim 1 or 2, characterized in that the cup (2) is made of a material selected from 20 to 100 pm thick aluminium, a pure plastic or multi-layered plastic, a cardboard/aluminium/plastic composite or a cardboard/plastic composite. 4 . Innsats (1, 8, 30) i henhold til hvilket som helst av kravene 1 til 3,karakterisert vedat lokket (4) er fremstilt av et materiale valgt fra 15 til 60 um tykk aluminium og et laminat bestående av enten 1) 20 til 60 g/m<3>papir, 20 til 60 pm tykk plast og 5 til 20 pm tykk aluminium eller 2) 5 til 30 pm tykk EVOH eller PVDC og 20 til 100 pm tykk plast (PP, PE eller PA) eller 3) PET (5 til 30 pm) og 20 til 100 pm plast (PP, PE) eller metallisert PET eller PET forsynt med et øvre rensesjikt (som for eksempel inneholder Si02).4. Insert (1, 8, 30) according to any one of claims 1 to 3, characterized in that the lid (4) is made of a material selected from 15 to 60 µm thick aluminum and a laminate consisting of either 1) 20 to 60 g/m<3> paper, 20 to 60 pm thick plastic and 5 to 20 pm thick aluminum or 2) 5 to 30 pm thick EVOH or PVDC and 20 to 100 pm thick plastic (PP, PE or PA) or 3) PET (5 to 30 pm) and 20 to 100 pm plastic (PP, PE) or metallized PET or PET provided with an upper cleaning layer (containing, for example, SiO2).
NO921812A 1991-05-10 1992-05-07 Sealed efforts to make beverages NO302696B1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP91107650A EP0512148A1 (en) 1991-05-10 1991-05-10 Enclosed cartridge for making a beverage
EP91111317 1991-07-08

Publications (3)

Publication Number Publication Date
NO921812D0 NO921812D0 (en) 1992-05-07
NO921812L NO921812L (en) 1992-11-11
NO302696B1 true NO302696B1 (en) 1998-04-14

Family

ID=26128850

Family Applications (1)

Application Number Title Priority Date Filing Date
NO921812A NO302696B1 (en) 1991-05-10 1992-05-07 Sealed efforts to make beverages

Country Status (15)

Country Link
EP (1) EP0512468B1 (en)
JP (1) JP2763987B2 (en)
KR (1) KR0143975B1 (en)
AT (1) ATE148419T1 (en)
AU (1) AU1505192A (en)
CA (1) CA2067515C (en)
DE (1) DE69217113T2 (en)
DK (1) DK0512468T3 (en)
ES (1) ES2097831T3 (en)
FI (1) FI108630B (en)
GR (1) GR3022936T3 (en)
MX (1) MX9202144A (en)
MY (1) MY109864A (en)
NO (1) NO302696B1 (en)
NZ (1) NZ242567A (en)

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