NL2021594B1 - Improved cartridge for the preparation of a beverage - Google Patents

Improved cartridge for the preparation of a beverage Download PDF

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Publication number
NL2021594B1
NL2021594B1 NL2021594A NL2021594A NL2021594B1 NL 2021594 B1 NL2021594 B1 NL 2021594B1 NL 2021594 A NL2021594 A NL 2021594A NL 2021594 A NL2021594 A NL 2021594A NL 2021594 B1 NL2021594 B1 NL 2021594B1
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NL
Netherlands
Prior art keywords
airtight
foil
cartridge according
plastic
biaxial
Prior art date
Application number
NL2021594A
Other languages
Dutch (nl)
Inventor
Ilan De Jong Robert
Arie Andries Pluut Roland
Wilhelmus Ladislaus Osse Nicolaas
Antonius Alberts Petrus
Original Assignee
Compostable Coffee Cups Ip B V
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Application filed by Compostable Coffee Cups Ip B V filed Critical Compostable Coffee Cups Ip B V
Priority to NL2021594A priority Critical patent/NL2021594B1/en
Application granted granted Critical
Publication of NL2021594B1 publication Critical patent/NL2021594B1/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
    • B65D65/00—Wrappers or flexible covers; Packaging materials of special type or form
    • B65D65/38—Packaging materials of special type or form
    • B65D65/46—Applications of disintegrable, dissolvable or edible materials
    • B65D65/466—Bio- or photodegradable packaging materials
    • 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
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/03—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers with respect to the orientation of features
    • 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
    • B65D2203/00—Decoration means, markings, information elements, contents indicators
    • B65D2203/12—Audible, olfactory or visual signalling means

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
  • Packages (AREA)
  • Apparatus For Making Beverages (AREA)

Abstract

Described is an airtight cartridge containing extractable beverage ingredients for the preparation of a beverage, the cartridge being designed to be subjected to an extraction procedure with an extraction fluid under a pressure of at least 5 bar in a beverage production machine comprising a cartridge holder, intended to hold the said cartridge, the cartridge comprising a cup with a base portion, a circumferential wall extending from the base portion and a circular lip at the end of the wall, extending perpendicular from the wall, and a cover membrane sealingly attached to the periphery of the lip of the cup, defining an inner space wherein the extractable beverage ingredients are accommodated, the cover membrane, at the start of the extraction, being intended to be torn solely under the effect of the pressure of the extraction fluid or being mechanically punctured, wherein the cover membrane comprises a plastic foil having increased tear resistance, chosen from a plastic cast foil and a plastic laminate, the laminate comprising a first and a second plastic foil layer adherently attached to one another, the first plastic foil layer being a biaxial plastic foil, the second foil layer being chosen from a monoaxial foil and a biaxial foil, wherein the layers are laminated such, that the directions of the biaxial foil of the first foil layer and at least one direction of the monoaxial foil or the biaxial foil of the second foil layer differ from one another.

Description

Figure NL2021594B1_D0001

© 2021594 © B1 OCTROOI (2?) Aanvraagnummer: 2021594 © Int. Cl.:© 2021594 © B1 PATENT (2?) Request number: 2021594 © Int. Cl .:

B65D 85/804 (2018.01) B65D 65/46 (2019.01) © Aanvraag ingediend: 10 september 2018B65D 85/804 (2018.01) B65D 65/46 (2019.01) © Application submitted: 10 September 2018

Figure NL2021594B1_D0002

Aanvraag ingeschreven:Application registered:

oktober 2019 (43) Aanvraag gepubliceerd:October 2019 (43) Request published:

© Octrooihouder(s):© Patent holder (s):

Compostable Coffee Cups IP B.V. te Den Haag.Compostable Coffee Cups IP B.V. in The Hague.

Figure NL2021594B1_D0003

Octrooi verleend:Patent granted:

oktober 2019 © Octrooischrift uitgegeven:October 2019 © Patent issued:

oktober 2019 © Uitvinder(s):October 2019 © Inventor (s):

Robert Ilan de Jong te Den Haag. Roland Arie Andries Pluut te Den Haag. Petrus Antonius Alberts te Hengelo. Nicolaas Wilhelmus Ladislaus Osse te Heinkenszand.Robert Ilan de Jong in The Hague. Roland Arie Andries Pluut in The Hague. Petrus Antonius Alberts in Hengelo. Nicolaas Wilhelmus Ladislaus Osse in Heinkenszand.

© Gemachtigde:© Authorized representative:

dr. T. Wittop Koning PhD te Delft.Dr. T. Wittop King PhD in Delft.

54) Improved cartridge for the preparation of a beverage54) Improved cartridge for the preparation of a beverage

5^ Described is an airtight cartridge containing extractable beverage ingredients for the preparation of a beverage, the cartridge being designed to be subjected to an extraction procedure with an extraction fluid under a pressure of at least 5 bar in a beverage production machine comprising a cartridge holder, intended to hold the said cartridge, the cartridge comprising a cup with a base portion, a circumferential wall extending from the base portion and a circular lip at the end of the wall, extending perpendicular from the wall, and a cover membrane sealingly attached to the periphery of the lip of the cup, defining an inner space wherein the extractable beverage ingredients are accommodated, the cover membrane, at the start of the extraction, being intended to be torn solely under the effect of the pressure of the extraction fluid or being mechanically punctured, wherein the cover membrane comprises a plastic foil having increased tear resistance, chosen from a plastic cast foil and a plastic laminate, the laminate comprising a first and a second plastic foil layer adherently attached to one another, the first plastic foil layer being a biaxial plastic foil, the second foil layer being chosen from a monoaxial foil and a biaxial foil, wherein the layers are laminated such, that the directions of the biaxial foil of the first foil layer and at least one direction of the monoaxial foil or the biaxial foil of the second foil layer differ from one another.5 ^ Described is an airtight cartridge containing extractable beverage ingredients for the preparation of a beverage, the cartridge being designed to be subjected to an extraction procedure with an extraction fluid under a pressure or at least 5 bar in a beverage production machine including a cartridge holder , intended to hold the said cartridge, the cartridge including a cup with a base portion, a circumferential wall extending from the base portion and a circular lip at the end of the wall, extending perpendicular from the wall, and a cover membrane sealingly attached to the periphery of the lip of the cup, defining an inner space the extractable beverage ingredients are accommodated, the cover membrane, the start of the extraction, being intended to be solely under the effect of the pressure of the extraction fluid or being mechanically punctured, with the cover membrane comprising a plastic foil having increased tear resistance, chosen from a plastic cast foil a nd a plastic laminate, the laminate including a first and a second plastic foil layer adherently attached to one, the first plastic foil layer being a biaxial plastic foil, the second foil layer being chosen from a monoaxial foil and a biaxial foil, the layers are laminated such, that the directions of the biaxial foil or the first foil layer and at least one direction of the monoaxial foil or the biaxial foil or the second foil layer differ from one another.

NL B1 2021594NL B1 2021594

Dit octrooi is verleend ongeacht het bijgevoegde resultaat van het onderzoek naar de stand van de techniek en schriftelijke opinie. Het octrooischrift komt overeen met de oorspronkelijk ingediende stukken.This patent has been granted regardless of the attached result of the research into the state of the art and written opinion. The patent corresponds to the documents originally submitted.

Improved cartridge for the preparation of a beverageImproved cartridge for the preparation of a beverage

The invention relates to a sealed airtight beverage cartridge containing extractable beverage ingredients for the preparation of a beverage, the cartridge being designed to be subjected to an extraction procedure with an extraction fluid under a pressure of at least 5 bar, in particular 5-22 bar, in a beverage production machine comprising a cartridge holder, intended to hold the said cartridge, the cartridge comprising a cup with a base portion, a circumferential wall extending from the base portion and a circular lip at the end of the wall, extending perpendicular from the wall, and a cover membrane sealingly attached to the periphery of the lip of the cup, defining an inner space wherein the extractable beverage ingredients are accommodated, the cover membrane, at the start of the extraction, being intended to be torn solely under the effect of the pressure of the extraction fluid or being mechanically punctured.The invention relates to a sealed airtight beverage cartridge containing extractable beverage ingredients for the preparation of a beverage, the cartridge being designed to be subjected to an extraction procedure with an extraction fluid under a pressure of at least 5 bar, in particular 5-22 bar , in a beverage production machine including a cartridge holder, intended to hold the said cartridge, the cartridge including a cup with a base portion, a circumferential wall extending from the base portion and a circular lip at the end of the wall, extending perpendicular from the wall, and a cover membrane sealingly attached to the periphery of the lip of the cup, defining an inner space in the extractable beverage ingredients are accommodated, the cover membrane, at the start of the extraction, being intended to be solely under the effect of the pressure of the extraction fluid or being mechanically punctured.

Such sealed cartridges are known in the art, and are described in e.g. WO2015/121489, EP0512468, EP2218653 and EP2364930. These are in particular intended for the preparation of single portions of freshly brewed coffee in coffee extraction machines such as known in the art e.g. from Nespresso or Dolce Gusto (Nestlé, Vevey, Switzerland; Krups, Solingen, Germany), and e.g. described in WO2015/121489.Such sealed cartridges are known in the art, and are described in e.g. WO2015 / 121489, EP0512468, EP2218653 and EP2364930. These are in particular intended for the preparation of single portions of freshly brewed coffee in coffee extraction machines such as known in the art eg from Nespresso or Dolce Gusto (Nestlé, Vevey, Switzerland; Krups, Solingen, Germany), and as described in WO2015 / 121489.

To this end, extractable beverage ingredients, such as coffee powder are sealed in an air tight manner in the inner space of the cartridge. The cartridge is positioned in the extraction machine and the extraction fluid, in particular hot water or water vapour is injected at a pressure of at least 5 bar, in particular 5-22 bar in the cartridge, by puncturing the base portion and or the circumferential wall. At the elevated pressure, the beverage ingredients are extracted and the cover membrane is torn as it is not resistant to the high pressure with the cartridge. When positioned in the extraction machine, the cover membrane is supported from the exterior by a supporting surface comprising one or recesses where the cover membrane is not supported. When the extraction takes place, the cover membrane is intended to tear at the position of these recesses where trough the extracted beverage leaves the cartridge and is collected.To this end, extractable beverage ingredients, such as coffee powder are sealed in an air tight manner in the inner space of the cartridge. The cartridge is positioned in the extraction machine and the extraction fluid, in particular hot water or water vapor is injected at a pressure of at least 5 bar, in particular 5-22 bar in the cartridge, by puncturing the base portion and the circumferential wall. At the elevated pressure, the beverage ingredients are extracted and the cover membrane is torn as it is not resistant to the high pressure with the cartridge. When positioned in the extraction machine, the cover membrane is supported from the exterior by a supporting surface including one or recesses where the cover membrane is not supported. When the extraction takes place, the cover membrane is intended for the position of these recesses where the extracted beverage leaves the cartridge and is collected.

The cover membrane should be highly tear resistant and should be tearable at high pressure in a controlled manner, e.g. the membrane should not be torn further than the position of the recesses in the extraction machine. For this reason, the membrane is usually made from a metal foil, such as aluminium foil. Attempts to provide cartridges of the above kind with a plastic foil as membrane have hitherto failed. Plastic foils are too weak and tear in an uncontrolled manner, hampering the extraction process. Attempts have been made to provide cartridges that have a specific orifice in the cover membrane wherethrough the extracted fluid leaves the cartridge when pressure is exerted in the inner space of the cartridge, see e.g. EP2364930. Such a solution is however very cost-ineffective and has never reached the market.The membrane cover should be highly resistant and should be capable of high pressure in a controlled manner, e.g., the membrane should not be further than the position of the recesses in the extraction machine. For this reason, the membrane is usually made from a metal foil, such as aluminum foil. Attempts to provide cartridges or the above kind with a plastic foil as a membrane have hitherto failed. Plastic foils are too weak and tear in an uncontrolled manner, hammering the extraction process. Attempts have been made to provide cartridges that have a specific orifice in the cover membrane wherethrough the extracted fluid leaves the cartridge when pressure is exerted in the inner space of the cartridge, see e.g. EP2364930. However, such a solution is very cost-ineffective and has never reached the market.

In the art, there is therefore need for improved plastic foils having a high tear resistance for use as cover membrane in the beverage cartridges of the above kind. It has now been found that cover membranes can be used, that comprise a plastic foil having increased tear resistance, chosen from a plastic cast foil and a multi-axial foil. A multi-axial foil is a plastic laminate, the laminate comprising a first and a second plastic foil layer adherently attached to one another, the first plastic foil layer being a biaxial plastic foil, the second foil layer being chosen from a monoaxial foil and a biaxial foil, wherein the layers are laminated such, that the directions of the biaxial foil of the first foil layer and at least one direction of the monoaxial foil or the biaxial foil of the second foil layer differ from one another.In the art, there is therefore a need for improved plastic foils having a high tear resistance for use as a cover in the beverage cartridges or the above kind. It has now been found that cover membranes can be used, that include a plastic foil having increased tear resistance, chosen from a plastic cast foil and a multi-axial foil. A multi-axial foil is a plastic laminate, the laminate including a first and a second plastic foil layer adherently attached to one, the first plastic foil layer being a biaxial plastic foil, the second foil layer being chosen from a monoaxial foil and a biaxial foil, the layers are laminated such, that the directions of the biaxial foil or the first foil layer and at least one direction of the monoaxial foil or the biaxial foil or the second foil layer differ from one another.

It was found that conventional plastic foils, i.e. monoaxial or biaxial foils have a tear resistance that is too low to be used as cover membrane of the cartridges of the invention, monoaxial foils are produced by extrusion, where the foil is stretched in a single direction while in the rubber phase. Such stretching increases the strength of the foil. This direction is usually the direction of the extrusion. Biaxial foils are stretched in two directions, also orientations, usually perpendicular to one another These monoaxial and biaxial foils appear to be torn in an uncontrolled manner when used as material for cover membranes of the cartridges of the invention. It has been found that these oriented foils tend to tear in an uncontrollable manner in the corresponding stretch direction. As the thickness of the cover membrane is limited, monoaxial and biaxial foils lack the required tear resistance at the envisaged thickness of e.g. up to 500,600 or 700 pm.It was found that conventional plastic foils, ie monoaxial or biaxial foils have a tear resistance that is too low to be used as a cover membrane of the cartridges of the invention, monoaxial foils are produced by extrusion, where the foil is stretched in a single direction while in the rubber phase. Such stretching increases the strength of the foil. This direction is usually the direction of the extrusion. Biaxial foils are stretched in two directions, also orientations, usually perpendicular to one another These monoaxial and biaxial foils appear to be in an uncontrolled manner when used as material for cover membranes of the cartridges of the invention. It has been found that these oriented foils tend to be in an uncontrollable manner in the corresponding stretch direction. As the thickness of the cover membrane is limited, monoaxial and biaxial foils lack the required tear resistance at the envisaged thickness or e.g. up to 500,600 or 700 pm.

In the art, plastic foils have been used as cover membranes in beverage cartridges of the above type, but always in combination of enforcement means, such as a grid underlying the membrane. Such cartridges however need to comprise orienting means that cooperate with corresponding orienting means in the cartridge holder of the extraction machine, in order to introduce the cartridge in the said machine in a specific orientation, wherein the position of the grid, and therewith of the nonsupported portions of the membrane is defined to allow directed penetration of these unsupported portions of the membrane at the beginning of the extraction.In the art, plastic foils have been used as cover membranes in beverage cartridges or the above type, but always in combination of enforcement means, such as a grid underlying the membrane. Such cartridges, however, need to include orienting means cooperating with corresponding orienting means in the cartridge holder of the extraction machine, in order to introduce the cartridge in the said machine in a specific orientation, in the position of the grid, and therewith of the nonsupported portions of the membrane is defined to allow directed penetration of these unsupported portions of the membrane at the beginning of the extraction.

It has now been found that multiaxial foils, i.e. plastic laminates wherein a first layer of a biaxial foil is adherently attached to a second plastic foil layer, that can be monoaxial or biaxial, a membrane material of advantageous thickness, i.e. up to 700, 600, 500 pm or thinner can be obtained having surprisingly increased tearing resistance and can be suitable as cover membrane material for a cartridge of the invention. In such a laminate, the stretch directions (axes) of the first layer differ from at least one of that of the second layer, therewith providing a multiaxial laminate, i.e. comprising multiple directions (axes), i.e. more than two. As stretching is believed to generate multiple thick regions and thin regions parallelly arranged to one another in the stretch region, the thin regions tend to tear fast. By providing a multiaxial plastic laminate, a grid-like structure is provided, providing a plurality of small thin areas, embedded in a thicker web-like structure. The foils of the laminate are preferably adhered to one another over the complete common surface to form a rigid web that tears in a controllable manner when exposed to high pressure, in particular at the thin portions of the laminate. Also cast foils have been shown to be very suitable as cover membrane for the cartridges of the invention. Such foils are manufactured without stretching in any direction and can therefore be regard as omniaxial; there are no thin portions in such foils. There is no bias with regard to tear in such foils, which makes these very suitable as cover membrane material, in contrast to blown foils that, if nonstretched, mono- or biaxial, are too weak. Such cast foils can be compared with the above multiaxial laminates, but lacking the thin portions. Therefore, in a particular attractive embodiment, the cover membrane comprises a plastic cast foil.It has now been found that multiaxial foils, ie plastic laminates being a first layer of a biaxial foil is adherently attached to a second plastic foil layer, that can be monoaxial or biaxial, a membrane material or advantageous thickness, ie up to 700, 600 , 500 pm or thinner can be obtained having surprisingly increased tearing resistance and can be used as a cover membrane material for a cartridge of the invention. In such a laminate, the stretch directions (axes) or the first layer differ from at least one of that or the second layer, therewith providing a multiaxial laminate, i.e. including multiple directions (axes), i.e. more than two. As stretching is believed to generate multiple thick regions and thin regions parallel arranged to one in the stretch region, the thin regions tend to tear fast. By providing a multiaxial plastic laminate, a grid-like structure is provided, providing a variety of small thin areas, embedded in a thicker web-like structure. The foils of the laminate are preferably adhered to one over the complete common surface to form a rigid web that tears in a controllable manner when exposed to high pressure, in particular to the thin portions of the laminate. Also cast foils have been shown to be very suitable as a cover membrane for the cartridges of the invention. Such foils are manufactured without stretching in any direction and can therefore be considered as omniaxial; there are no thin portions in such foils. There is no bias with regard to tear in such foils, which makes this very suitable as cover membrane material, in contrast to blown foils, if nonstretched, mono- or biaxial, are too weak. Such cast foils can be compared with the above multiaxial laminates, but lacking the thin portions. Therefore, in a particularly attractive embodiment, the cover membrane comprises a plastic cast foil.

in another attractive embodiment, the cover membrane of the cartridge comprises a plastic laminate wherein the second foil layer comprises a biaxial foil, at least one of the directions of which differ from those of the biaxial foil of the first foil layer. As explained above, such laminate provides for a strengthened web-like structure, in particular when both foils of the laminate are biaxial.in another attractive embodiment, the cover membrane of the cartridge comprises a plastic laminate comprising the second foil layer comprising a biaxial foil, at least one of the directions of which differ from those of the biaxial foil or the first foil layer. As explained above, such a laminate provides for a strengthened web-like structure, in particular when both foils or the laminate are biaxial.

Accordingly, the sealed beverage cartridge comprises a cover membrane comprising a laminate of at least three biaxial plastic foil layers, adherently attached to one another, in particular over the complete common surfaces.Completely, the sealed beverage cartridge comprises a cover membrane comprising a laminate or at least three biaxial plastic foil layers, adherently attached to one another, in particular over the complete common surfaces.

In a very attractive embodiment, the plastic cast foil or the plastic laminate comprises, in particular is made of a plastic, chosen from the group, consisting of polylactic acid (PLA), polyhydroxyalkanoates (PHA), polypropylene (PP), polyethylene terephthalate (PET), polyvinylchloride (PVC), polystyrene (PS), polyvinylidene (PV), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), starch polymers or cellulose or a combination thereof. For environmental reasons, the plastic cast foil or the plastic laminate is made of biodegradable plastic, the biodegradable plastic preferably comprising or is constituted of polylactic acid.In a very attractive design, the plastic cast foil or the plastic laminate comprises, in particular is made from a plastic, chosen from the group, consisting of polylactic acid (PLA), polyhydroxyalkanoates (PHA), polypropylene (PP), polyethylene terephthalate ( PET), polyvinyl chloride (PVC), polystyrene (PS), polyvinylidene (PV), polycarbonate (PC), acrylonitrile butadiene styrene (ABS), starch polymers or cellulose or a combination thereof. For environmental reasons, the plastic cast foil or the plastic laminate is made of biodegradable plastic, the biodegradable plastic preferably including or is constituted or polylactic acid.

The term “biodegradable” herein refers to the definitions from the ASTM subcommittee D20-96 as described in Müller et al. (Biopolymers Online (2005) 10, 365-374), meaning that the said material can be degraded or decomposed by microorganisms or other biological means in a natural environment, preferably without the addition of additional energy, while forming CO2 and H2O and biomass. Under anoxic conditions, also CH4 can be formed. Biodegradable material therefore loses weight while being degraded. The faster the weight loss, the better the biodegradability. The biodegradability is determined according to the standard guidelines ASTMD695401/04.The term "biodegradable" refers to the definitions from the ASTM subcommittee D20-96 as described in Müller et al. (Biopolymers Online (2005) 10, 365-374), meaning that the said material can be degraded or decomposed by microorganisms or other biological means in a natural environment, preferably without the addition of additional energy, while forming CO2 and H2O and biomass. Under anoxic conditions, also CH4 can be formed. Biodegradable material therefore loses weight while being degraded. The faster the weight loss, the better the biodegradability. The biodegradability is determined according to the standard guidelines ASTMD695401 / 04.

. According to this standard, both polylactic PLA and PHA are defined as biodegradable polymers. The degradation or decomposition thereof may nevertheless require high temperatures and humidity, which means that the degradation usually takes place in specialized industrial degradation plants and according to ASTM D6400 standards for industrial biodegradation. It is to be noted that one or more plastic foils of the cover membrane of the cartridge can be made from one or more biodegradable thermoplastic polymers.. According to this standard, both polylactic PLA and PHA are defined as biodegradable polymers. The degradation or decomposition may nevertheless require high temperatures and humidity, which means that the degradation usually takes place in specialized industrial degradation plants and according to ASTM D6400 standards for industrial biodegradation. It is to be noted that one or more plastic foils or the cover membrane or the cartridge can be made from one or more biodegradable thermoplastic polymers.

WO2015/121489 describes a biodegradable beverage cartridge of the above type, which would imply that the cover membrane would be biodegradable as well. However, WO2015/121489 is however silent about the suitability of biodegradable plastics materials as cover membrane. It has been found that biodegradable plastics are as vulnerable for uncontrollable tearing as other plastics are, and therewith as such not suitable as cover membrane for a beverage cartridge of the above type. However, biodegradable plastics can very well be used as material for a cover membrane of such a beverage cartridge, when it comprises or is constituted of a cast foil of a multiaxial laminate as described above.WO2015 / 121489 describe a biodegradable beverage cartridge of the above type, which would imply that the cover would be biodegradable as well. However, WO2015 / 121489 is however silent about the suitability of biodegradable plastics materials as a cover membrane. It has been found that biodegradable plastics are as vulnerable to uncontrollable tearing as other plastics, and therewith as such not suitable as a cover membrane for a beverage cartridge of the above type. However, biodegradable plastics can be very well used as a material for a cover membrane or such a beverage cartridge, when it comprises or is constituted or a cast foil or a multiaxial laminate as described above.

In an attractive embodiment of the cartridge of the invention, the biodegradable plastic comprises, or is made of polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, cellulose, or a mixture of two or more thereof, in particular polylactic acid. This material has proven very suitable as cover membrane, in particular when it comes to cast foil.In an attractive embodiment of the cartridge of the invention, the biodegradable plastic comprises, or is made of polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, cellulose, or a mixture of two or more, in particular polylactic acid. This material has proven to be very suitable as a cover membrane, in particular when it comes to cast foil.

The cover membrane of the cartridge preferably has a thickness of 100 - 700 pm, more preferably of 200 - 600 pm, even more preferably of 300 - 500 pm. In case the cover membrane comprises a plastic laminate, the laminate comprises one or more layers having a thickness of 50 - 250 pm, preferably 50- 150 pm. Preferably each of the layers of the membrane have such a thickness. The membrane can also comprise, as laminate layer, a layer of cast plastic foil.The cover membrane or the cartridge preferably has a thickness of 100 - 700 pm, more preferably or 200 - 600 pm, even more preferably or 300 - 500 pm. In case the cover membrane consists of a plastic laminate, the laminate comprises one or more layers having a thickness of 50 - 250 pm, preferably 50 - 150 pm. Preferably each of the layers of the membrane have such a thickness. The membrane can also comprise, as laminate layer, a layer or cast plastic foil.

The beverage ingredients are in particular chosen from roasted ground coffee, tea, soluble coffee, a mixture of ground coffee and soluble coffee, and a chocolate product, although also any other dehydrated drinkable substance can be accommodated in the cartridge, alone, or in combination with one another, such as milk powder in combination with grinded or soluble coffee. When the beverage ingredients are completely soluble in the extraction fluid, the extraction process results in a complete dissolution of the beverage ingredients, leaving an empty cartridge behind. However, in most of the cases, such as in case of grinded coffee, the extraction process will result in the preparation of a coffee, leaving debris of the grinded coffee behind in the cartridge. If the tearing is uncontrolled, the openings can become too large, allowing the debris to leave the cartridge together with the envisaged beverage, which is undesired.The beverage ingredients are in particular chosen from roasted ground coffee, tea, soluble coffee, a mixture of ground coffee and soluble coffee, and a chocolate product, although also any other dehydrated drinkable substance can be accommodated in the cartridge, alone, or in combination with one another, such as milk powder in combination with grinded or soluble coffee. When the beverage ingredients are completely soluble in the extraction fluid, the extraction process results in a complete dissolution of the beverage ingredients, leaving an empty cartridge behind. However, in most of the cases, such as in case of grinded coffee, the extraction process will result in the preparation of a coffee, leaving debris of the grinded coffee behind in the cartridge. If the tearing is uncontrolled, the opening can become too large, allowing the debris to leave the cartridge together with the envisaged beverage, which is undesired.

The lateral wall from the beverage cartridge preferably extends from the base in a frustoconical fashion and wherein the circular lip is larger in diameter than the base, the cover membrane being sealingly attached to the periphery of the lip of the cup. Such a cartridge of the invention is also described in EP0512468, where in figure 1 thereof, the base is indicated by 5, the lateral wall extending therefrom in a frustoconical manner by 6, the lip by 7 and the cover membrane by 4. The extractable beverage ingredients are indicated by 3. The cartridge of the present invention can be designed this way. The base can be flat, as described for EP0512468, but can also be frustoconicaliy designed, e.g. as in figure 2 of EP2364930, where the frustoconical base is indicated by 3, the frustoconical lateral wall extending therefrom by 4, having a circular lip 5 at the end of the wall 4, the extractable beverage ingredients being indicated by 8. The cartridge of the present invention can be designed this way as well.The lateral wall from the beverage cartridge preferably extends from the base in a frustoconical fashion and the circular lip is larger in diameter than the base, the cover being sealedly attached to the periphery or the lip of the cup. Such a cartridge of the invention is also described in EP0512468, where in figure 1, the base is indicated by 5, the lateral wall extending therefrom in a frustoconical manner by 6, the lip by 7 and the cover membrane by 4. The extractable beverage ingredients are indicated by 3. The cartridge of the present invention can be designed this way. The base can be flat, as described for EP0512468, but can also be frustoconicaliy designed, eg as in figure 2 or EP2364930, where the frustoconical base is indicated by 3, the frustoconical lateral wall extending therefrom by 4, having a circular lip 5 at the end of the wall 4, the extractable beverage ingredients being indicated by 8. The cartridge of the present invention can be designed this way as well.

The base portion, the circumferential wall and the circular lip of the cartridge of the invention are advantageously thermoformed from a polymer composition comprising a first thermoplastic polymer or a combination of a first and a second thermoplastic polymer. The base portion, the circumferential wall and the circular lip form a cup-like structure, and the cover membrane can be welded or otherwise sealingly attached in a sealing manner to the circular lip of the cup. The term ‘sealingly attached’ herein means that the membrane is attached to the circular lip so as to seal the contents of the cartridge in an airtight manner. This can be done by gluing, welding and the like.The base portion, the circumferential wall and the circular lip of the cartridge of the invention are advantageously thermoformed from a polymer composition comprising a first thermoplastic polymer or a combination of a first and a second thermoplastic polymer. The base portion, the circumferential wall and the circular lip form a cup-like structure, and the cover membrane can be welded or otherwise sealed in a sealing manner to the circular lip or the cup. The term "sealingly attached" means that the membrane is attached to the circular lip so to seal the contents of the cartridge in an airtight manner. This can be done by gluing, welding and the like.

Attractively, the first and, if present, second thermoplastic polymer are biodegradable. In an attractive embodiment, the first thermoplastic polymer is chosen from the group, consisting of polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, cellulose, or a mixture of two or more thereof, as for the cover membrane, so that the assembly of both cup and cover membrane is biodegradable.Attractively, the first and, if present, second thermoplastic polymer are biodegradable. In an attractive embodiment, the first thermoplastic polymer is chosen from the group, consisting of polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, cellulose, or a mixture of two or more, as for the cover membrane, so that the assembly of both cup and cover membrane is biodegradable.

In a very attractive embodiment, the second thermoplastic polymer comprises leaf sheath material from the betel nut palm Areca catechu. As described in WO2014/084724, The leaf sheath material of Areca catechu is a thermoplastic polymeric composition, and can be used as matrix material in a polymeric mix with other polymers such as polylactic acid or other biodegradable or non-biodegradable polymers. It was found that the biodegradability of the admixed polymers, such as PLA significantly improved, to such an extend that PLA was biodegradable at environmental conditions, e.g. without the need for an industrial degradation process. Degradation of e.g. a PLA product in nature takes at least around 1 year to several years, so that such articles are still capable of environmental pollution. If PLA is combined with the leaf sheath material of Areca catechu to form a polymer composition, the biodegradability in nature is only several weeks. Even polymers that were believed not to be biodegradable became susceptible to biodegradation when combined in a polymer composition with leaf sheath material of Areca catechu. The polymer composition can also comprise filler materials, such as those, mentioned in WO2014/084724.In a very attractive embodiment, the second thermoplastic polymer comprises leaf sheath material from the betel nut palm Areca catechu. As described in WO2014 / 084724, The leaf sheath material or Areca catechu is a thermoplastic polymeric composition, and can be used as a matrix material in a polymeric mix with other polymers such as polylactic acid or other biodegradable or non-biodegradable polymers. It was found that the biodegradability of admixed polymers, such as PLA significantly improved, to such an extend that PLA was biodegradable at environmental conditions, e.g. without the need for an industrial degradation process. Degradation or e.g. a PLA product naturally takes at least around 1 year to several years, so that such articles are still capable of environmental pollution. If PLA is combined with the leaf sheath material or Areca catechu to form a polymer composition, the biodegradability in nature is only several weeks. Even polymers that were believed not to be biodegradable became susceptible to biodegradation when combined in a polymer composition with leaf sheath material or Areca catechu. The polymer composition can also include filler materials, such as those mentioned in WO2014 / 084724.

The weight ratio of the second polymer matrix component, i.e. the leaf sheath material of Areca catechu, to the first thermoplastic polymer (as second polymer matrix component) is preferably 5 - 70 : 95 - 30, more preferably 10 - 50 : 90 - 10, even more preferably 40 - 60 : 60 - 40. It has been found that the above advantages are pronounced with blends of leaf sheath derived material from Areca catechu and polylactic acid having a weight ratio of 50 : 50 or even higher, i.e. having a higher content of leaf sheath material than polylactic acid.The weight ratio of the second polymer matrix component, ie the leaf sheath material or Areca catechu, to the first thermoplastic polymer (as second polymer matrix component) is preferably 5 - 70: 95 - 30, more preferably 10 - 50: 90 - 10 , even more preferably 40 - 60: 60 - 40. It has been found that the above advantages are pronounced with blends of leaf sheath derived material from Areca catechu and polylactic acid having a weight ratio of 50: 50 or even higher, ie having a higher content of leaf sheath material than polylactic acid.

It is to be noted that also one or more plastic foils of the cover membrane of the cartridge can be made from one or more biodegradable thermoplastic polymers, in particular been prepared from a polymer composition comprising leaf sheath material from Areca catechu as explained above.It is to be noted that one or more plastic foils or the cover membrane or the cartridge can be made from one or more biodegradable thermoplastic polymers, in particular leg prepared from a polymer composition comprising leaf sheath material from Areca catechu as explained above.

In another attractive embodiment, the cartridge material, in particular the polymer composition comprises an odorant that corresponds with the odour of the beverage ingredient, in particular when the polymer composition comprises a first biodegradable thermoplastic polymer, in particular polylactic acid, and leaf sheath material of Areca catechu as a second biodegradable thermoplastic polymer. The odorant gives the beverage cartridge an additional attractive appeal, allowing the customer to smell the beverage to be prepared with the said cartridge, while the beverage ingredients remain sealed in an airtight manner in the cartridge. The polymeric composition constitutes the cup material after thermoforming of the melt of the polymeric composition.In another attractive embodiment, the cartridge material, in particular the polymer composition comprises an odorant that corresponds with the odor of the beverage ingredient, in particular when the polymer composition comprises a first biodegradable thermoplastic polymer, in particular polylactic acid, and leaf sheath material or Areca catechu as a second biodegradable thermoplastic polymer. The odorant gives the beverage cartridge an additional attractive appeal, allowing the customer to smell the beverage to be prepared with the said cartridge, while the beverage ingredients remain sealed in an airtight manner in the cartridge. The polymeric composition comprises the cup material after thermoforming or the melt of the polymeric composition.

In an attractive embodiment, both the polymer composition and the odorant are provided as particulate material in the range of 100 - 800 pm, preferably 100 - 600 pm or 100 - 500 pm. The particle size is determined by sieving the particulate material through a sieve having openings of the of the indicated size. The ratio of the particle size of the polymer material to that of the odorant being 0.25 - 4 : 1, meaning that the particle size of the odorant is preferably between 4 times bigger and four times smaller than that of the polymeric material blended therewith. This provides good mixability of the different components and results in a well processable melt of the polymer composition and in a product wherein the odour of the odorant is pronounced.In an attractive embodiment, both the polymer composition and the odorant are provided as particulate material in the range of 100 - 800 pm, preferably 100 - 600 pm or 100 - 500 pm. The particle size is determined by sieving the particulate material through a sieving opening of the indicated size. The ratio of the particle size of the polymer material to the odorant being 0.25 - 4: 1, meaning that the particle size of the odorant is preferably between 4 times bigger and four times smaller than that of the polymeric material blended therewith. This provides good mixability of the different components and results in a well processable melt of the polymer composition and in a product in the odor of the odorant is pronounced.

Preferably, the polymeric material, such as the leaf sheath material of Areca catechu has a particle size of 100 - 150 pm and the odorant, in particular in case of coffee, has a particle size of 250 - 500 pm. In case another biodegradable polymeric matrix material is used, the particle size is preferably in the range of 100 - 500 pm.Preferably, the polymeric material, such as the leaf sheath material or Areca catechu has a particle size of 100 - 150 pm and the odorant, in particular in case of coffee, has a particle size of 250 - 500 pm. In case another biodegradable polymeric matrix material is used, the particle size is preferably in the range or 100 - 500 pm.

In a particular embodiment, the odorant is mixed as a particulate with the leaf sheath material of Areca catechu before being molten or being combined with a second polymeric matric material. The weight ratio between particulate from leaf sheaths of the betel palm Areca catechu and particulate of the odorant is preferably in the range of 1: 0.01 -0.2, preferably 1: 0.05-0.1.In a particular embodiment, the odorant is mixed as a particulate with the leaf sheath material or Areca catechu before being molten or being combined with a second polymeric matric material. The weight ratio between particulate from leaf sheaths of the betel palm Areca catechu and particulate of the odorant is preferably in the range of 1: 0.01 -0.2, preferably 1: 0.05-0.1.

When the base portion, walls and the lip portion are made as described above from one or more thermoplastic polymers, the surface of the base portion and of the circumferential wall directed towards the inner space of the cartridge is preferably coated with a polymeric layer comprising one or more food grade polymers, e.g. as described in WO2015/121489. PLA is an excellent candidate for such a food grade polymer layer. Such layer precludes direct contact of the polymeric material of the cartridge with the beverage ingredients accommodated therein, therewith improving the freshness of the ingredients. Further, such a design enable the use of more porous polymeric materials for use as cartridge material, while still securing the air tightness of the cartridge.When the base portion, walls and the lip portion are made as described above from one or more thermoplastic polymers, the surface of the base portion and the circumferential wall directed towards the inner space of the cartridge is preferably coated with a polymeric layer comprising one or more food grade polymers, eg as described in WO2015 / 121489. PLA is an excellent candidate for such a food grade polymer layer. Such layer precludes direct contact of the polymeric material or the cartridge with the beverage ingredients accommodated therein, therewith improving the freshness of the ingredients. Further, such a design enable the use of more porous polymeric materials for use as cartridge material, while still securing the air tightness of the cartridge.

The invention is now described by way of the following non-limiting examples.The invention is now described by way of the following non-limiting examples.

Example 1Example 1

A. A first multiaxial foil was prepared by laminating two layers of biaxial foil of polylactic acid (PLA), one prepared from Ingeo 4043D (NatureWorks, Minnetonka, MN, US) with a thickness of 200 pm and one from Ingeo 4060D (NatureWorks, Minnetonka, MN, US) with a thickness of 200 pm by blow moulding and subsequent biaxial stretching according to the recommendations of the manufacturer. The two layers were laminated such, that the stretching orientations of the first layer differed from those of the second layer.A. A first multiaxial foil was prepared by laminating two layers of biaxial foil or polylactic acid (PLA), one prepared from Ingeo 4043D (NatureWorks, Minnetonka, MN, US) with a thickness of 200 pm and one from Ingeo 4060D (NatureWorks, Minnetonka, MN, US with a thickness of 200 pm by blow molding and subsequent biaxial stretching according to the manufacturer's recommendations. The two layers were laminated such, that the stretching orientations of the first layer differed from those of the second layer.

B. A second multiaxial foil was prepared by laminating a third layer of Ingeo 4043D biaxial PLA foil onto the Ingeo 4043D layer of the first multiaxial foil, where the stretching orientations of the third layer differed from those of the first and second layer.B. A second multiaxial foil was prepared by laminating a third layer of Ingeo 4043D biaxial PLA foil onto the Ingeo 4043D layer of the first multiaxial foil, where the stretching orientations of the third layer differed from those of the first and second layer.

C. A third multiaxial foil was prepared by laminating, onto a biaxial foil of Ingeo 4060D with a thickness of 200 pm a monoaxial Ingeo 4043D PLA foil having a thickness of 150 pm.C. A third multiaxial foil was prepared by laminating, onto a biaxial foil or Ingeo 4060D with a thickness of 200 pm a monoaxial Ingeo 4043D PLA foil having a thickness of 150 pm.

D. A fourth foil was provided by casting Ingeo 4043D to a foil of a thickness of 350 pm.D. A fourth foil was provided by casting Ingeo 4043D to a foil or a thickness of 350 pm.

E. A control foil of a bidirectional foil having a thickness of 400 pm was prepared from Ingeo 4043D by blow moulding and subsequent biaxial stretching according to the recommendations of the manufacturer.E. A control foil or bidirectional foil having a thickness of 400 pm was prepared from Ingeo 4043D by blow molding and subsequent biaxial stretching according to the manufacturer's recommendations.

Example 2Example 2

A. An common coffee cartridge of polypropylene was filled with grinded coffee and closed by heat sealing the foils of example 1. If as outer layer an Ingeo 4060D foil was present, heat sealing was performed on this layer.A. A common coffee cartridge or polypropylene was filled with grinded coffee and closed by heat sealing the foils of example 1. If an outer layer of Ingeo 4060D foil was present, heat sealing was performed on this layer.

B. Another coffee cartridge was prepared by thermoforming a polymeric blend comprising 50 w/w% Ingeo 3251D (NatureWorks, Minnetonka, MN,B. Another coffee cartridge was prepared by thermoforming a polymeric blend comprising 50 w / w% Ingeo 3251D (NatureWorks, Minnetonka, MN,

US) and 50 w/w% Areca leaf sheath material as polymeric blend, as follows. The grinded powder from leaf sheaths from Areca catechu, prepared according to example 1 WO2014/084724 with a particle size of 100- 150 pm was mixed with an equal weight of polylactic acid granulate (Ingeo 3251D, NatureWorks, Minnetonka, MN, US) and fed to KraussMafeiUS) and 50 w / w% Areca leaf sheath material as polymeric blend, as follows. The grinded powder from leaf sheaths from Areca catechu, prepared according to example 1 WO2014 / 084724 with a particle size of 100-150 pm was mixed with an equal weight or polylactic acid granulate (Ingeo 3251D, NatureWorks, Minnetonka, MN, US) and fed to KraussMafei

KMD 0-25 twin screw extrusion equipment (Munich, Germany) to produce regular formed and polymerized standard plastic pellets. Said pellets were melted at 160 - 170°C and subjected to injection molding to form the cartridges. The cartridges were filled with grinded coffee and closed by heat sealing the foils of example 1.KMD 0-25 twin screw extrusion equipment (Munich, Germany) to produce regular formed and polymerized standard plastic pellets. Said pellets were melted at 160 - 170 ° C and subjected to injection molding to form the cartridges. The cartridges were filled with grinded coffee and closed by heat sealing the foils of example 1.

C. A third coffee cartridge was prepared according to example 2B, wherein in the polymeric melt 0.05 w/w% grinded coffee having a particle size of 350400 pm was incorporated in order to confer a coffee odour to the cartridge.C. A third coffee cartridge was prepared according to example 2B, in the polymeric melt 0.05 w / w% grinded coffee having a particle size of 350400 pm was incorporated in order to confer a coffee odor to the cartridge.

D. As fourth control cartridge a Nespesso coffee cartridge Fortissio Lungo (Nestlé, Vevey, Switzerland) was purchased from a local supermarket.D. The fourth control cartridge of a Nespesso coffee cartridge Fortissio Lungo (Nestlé, Vevey, Switzerland) was purchased from a local supermarket.

Example 3Example 3

Coffee cartridges of example 2 were subjected to extraction by a Zenius Nespresso coffee machine (Nestle, Vevey, Switzerland). Coffee cartridges of example 5 2D showed a perforated grid like structure after extraction. Coffee was prepared without any leakage.Coffee cartridges of example 2 were subjected to extraction by a Zenius Nespresso coffee machine (Nestle, Vevey, Switzerland). Coffee cartridges of example 5 2D showed a perforated grid like structure after extraction. Coffee was prepared without any leakage.

Coffee cartridges of examples 2A, 2B and 2C gave similar results when the same cover material was used. Cartridges with the cover foil of example 1 showed torn foil material after extraction, and leakage was observed while extraction took 10 place.Coffee cartridges of examples 2A, 2B and 2C gave similar results when the same cover material was used. Cartridges with the cover foil of example 1 showed torn foil material after extraction, and leakage was observed while extraction took 10 place.

Cartridges provided with a cover of any of the examples 1A, 1B, 1C and 1D showed a perforated grid like structure after extraction. Coffee was prepared without any leakage.Cartridges provided with a cover or any of the examples 1A, 1B, 1C and 1D showed a perforated grid like structure after extraction. Coffee was prepared without any leakage.

Similar results were obtained when other polymeric foil materials were used.Similar results were obtained when other polymeric foil materials were used.

Claims (20)

CONCLUSIESCONCLUSIONS 1. Luchtdicht afgesloten drankpatroon dat extraheerbare drankbestanddelen bevat voor het bereiden van een drank, waarbij het patroon is ingericht om onderworpen te worden aan een extractieprocedure met een extractiefluïdum onder een druk van ten minste 5 bar in een drankbereidingsmachine die een patroonhouder omvat die is ingericht om het patroon te houden, waarbij het patroon omvat:An airtight-sealed beverage cartridge containing extractable beverage components for preparing a beverage, the cartridge being adapted to be subjected to an extraction procedure with an extraction fluid under a pressure of at least 5 bar in a beverage preparation machine comprising a cartridge container adapted to keep the pattern, the pattern comprising: - een cup met een basisgedeelte, een rondgaande wand die zich vanaf het basisgedeelte uitstrekt en aan het uiteinde van de wand een circulaire flens die zich haaks vanaf de wand uitstrekt,- a cup with a base portion, a circumferential wall extending from the base portion and at the end of the wall a circular flange extending perpendicularly from the wall, - een afdekmembraan die afsluitend gehecht is aan de omtrek van de flens van de cup, waarbij een inwendige ruimte wordt gedefinieerd waarin de extraheerbare drankbestanddelen zijn opgenomen, waarbij het afdekmembraan aan het begin van de extractie is bestemd om louter door het effect van de druk van het extractiefluïdum opengescheurd te worden of om mechanisch te worden doorgeprikt, met het kenmerk, dat het afdekmembraan een kunststof folie omvat met verhoogde scheursterkte, gekozen uit een gegoten kunststof folie en een kunststof mulitiaxiale folie.- a cover membrane which is sealingly adhered to the circumference of the flange of the cup, wherein an internal space is defined in which the extractable beverage components are included, wherein the cover membrane at the beginning of the extraction is intended solely for the effect of the pressure of the extraction fluid being torn open or mechanically punctured, characterized in that the cover membrane comprises a plastic film with increased tear strength selected from a molded plastic film and a plastic multi-axial film. 2. Luchtdicht afgesloten drankpatroon volgens conclusie 1, waarin de mulitiaxiale folie een laminaat is dat een eerste en een tweede kunststof folielaag omvat die klevend aan elkaar zijn gehecht, waarbij de eerste kunststof folielaag een biaxiale kunststof folie is, en waarbij de tweede folielaag gekozen is uit een monoaxiale folie en een biaxiale folie, waarbij de lagen dusdanig zijn gelamineerd, dat de richtingen van de biaxiale folie van de eerste folielaag en tenminste één richting van de moniaxiale folielaag of de biaxiale folielaag van de tweede folielaag van elkaar verschillen.Airtight sealed beverage cartridge according to claim 1, wherein the multi-axial film is a laminate comprising a first and a second plastic film layer that are adhesively bonded to each other, the first plastic film layer being a biaxial plastic film, and wherein the second film layer is selected from a monoaxial film and a biaxial film, the layers being laminated such that the directions of the biaxial film of the first film layer and at least one direction of the moniaxial film layer or the biaxial film layer of the second film layer differ from each other. 3. Luchtdicht afgesloten drankpatroon volgens conclusie 1, waarbij de afdekmembraan een gegoten kunststof folie omvat.Airtight sealed beverage cartridge according to claim 1, wherein the cover membrane comprises a molded plastic film. 4. Luchtdicht afgesloten drankpatroon volgens conclusie 2, waarbij de afdekmembraan een kunststof laminaat omvat waarbij de tweede folielaag een biaxiale folie omvat, waarbij tenminste één van de richtingen ervan verschilt van die van de biaxiale folie van de eerste folielaag.Airtight-sealed beverage cartridge according to claim 2, wherein the cover membrane comprises a plastic laminate wherein the second foil layer comprises a biaxial foil, wherein at least one of its directions differs from that of the biaxial foil of the first foil layer. 5. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij het afdekmembraan een laminaat van tenminste drie biaxiale kunststof folielagen omvat, die klevend aan elkaar zijn gehecht.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the cover membrane comprises a laminate of at least three biaxial plastic film layers that are adhesively bonded to each other. 6. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij de gegoten kunststof folie of het kunststof laminaat vervaardigd is van biologisch afbreekbare kunststof.Airtight sealed beverage cartridge according to any of the preceding claims, wherein the molded plastic film or the plastic laminate is made of biodegradable plastic. 7. Luchtdicht afgesloten drankpatroon volgens conclusie 6, waarbij de biologisch afbreekbare kunststof polymelkzuur omvat.Airtight-sealed beverage cartridge according to claim 6, wherein the biodegradable plastic comprises polylactic acid. 8. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij het afdekmembraan een dikte heeft van 100 - 500 pm.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the cover membrane has a thickness of 100 - 500 µm. 9. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij het afdekmembraan een kunststof laminaat omvat, waarbij elke laag in het laminaat een dikte heeft van 50 - 250 pm.Airtight sealed beverage cartridge according to any of the preceding claims, wherein the cover membrane comprises a plastic laminate, wherein each layer in the laminate has a thickness of 50 - 250 µm. 10. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij de drankbestanddelen gekozen zijn uit gebrande gemalen koffie, thee, oplosbare koffie, een mengsel van gemalen en oplosbare koffie, en een chocoladeproduct.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the beverage components are selected from roasted ground coffee, tea, soluble coffee, a mixture of ground and soluble coffee, and a chocolate product. 11. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij de zijwand zich vanaf de basis uitstrekt op afgeknot kegelvormige wijze uitstrekt en waarbij de circulaire flens in diameter groter is dan de basis, waarbij het afdekmembraan afsluitend aan de omtrek van de flens van de cup is samengevoegd.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the side wall extends from the base in a frusto-conical manner and wherein the circular flange is larger in diameter than the base, the cover membrane terminating at the periphery of the flange of the cup is merged. 12. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij het basisgedeelte, de rondgaande wand en de circulaire flens zijn vervaardigd door thermovorming van een polymere samenstelling die een eerste thermoplastische polymeer of een combinatie van een eerste en een tweede thermoplastische polymeer omvat.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the base portion, the circumferential wall and the circular flange are made by thermoforming a polymeric composition comprising a first thermoplastic polymer or a combination of a first and a second thermoplastic polymer. 13. Luchtdicht afgesloten drankpatroon volgens conclusie 12, waarbij de eerste en, indien aanwezig, tweede thermoplastische polymeer biologisch afbreekbaar zijn.Airtight-sealed beverage cartridge according to claim 12, wherein the first and, if present, second thermoplastic polymer are biodegradable. 14 Luchtdicht afgesloten drankpatroon volgens conclusie 13, waarbij het eerste thermoplastische polymeer gekozen is uit de groep, die bestaat uit polymelkzuur (PLA), polyhydroxyalkanoaten (PHA), zetmeel, cellulose, of een mengsel van twee of meer daarvan.Airtight-sealed beverage cartridge according to claim 13, wherein the first thermoplastic polymer is selected from the group consisting of polylactic acid (PLA), polyhydroxyalkanoates (PHA), starch, cellulose, or a mixture of two or more thereof. 15. Luchtdicht afgesloten drankpatroon volgens conclusie 13 of 14, waarbij het tweede thermoplastische polymeer bladschachtmateriaal van de betelnootpalm Areca catechu omvat.An airtight sealed beverage cartridge according to claim 13 or 14, wherein the second thermoplastic polymer leaf shaft material of the betel nut palm comprises Areca catechu. 16. Luchtdicht afgesloten drankpatroon volgens conclusie 15, waarbij deAirtight sealed beverage cartridge according to claim 15, wherein the 5 polymere samenstelling als eerste thermoplastische polymeer polymelkzuur omvat en als tweede thermoplastische polymeer bladschachtmateriaal van de betelnootpalm Areca catechu.The polymeric composition comprises as the first thermoplastic polymer polylactic acid and as the second thermoplastic polymer sheet shaft material of the betel nut palm Areca catechu. 17. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van conclusies 12-16, waarbij de polymere samenstelling voorts een geurstof omvat die overeenkomt deAirtight-sealed beverage cartridge according to any of claims 12-16, wherein the polymeric composition further comprises a fragrance corresponding to the 10 geur van het drankenbestanddeel.10 odor of the beverage component. 18. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van conclusies 12-17, waarbij het oppervlak van het basisgedeelte en van de rondgaande wand, gericht naar de binnenruimte van het patroon zijn bekleed met een polymere laag die een of meer voor voedsel toelaatbare polymeren omvat.Airtight-sealed beverage cartridge according to any of claims 12-17, wherein the surface of the base portion and of the circumferential wall facing the inner space of the cartridge are coated with a polymeric layer comprising one or more food-acceptable polymers. 1515 19. Luchtdicht afgesloten drankpatroon volgens conclusie 18, waarbij het voor voedsel toelaatbare polymeer polymelkzuur omvat.Airtight-sealed beverage cartridge according to claim 18, wherein the food-acceptable polymer comprises polylactic acid. 20. Luchtdicht afgesloten drankpatroon volgens willekeurig welke van de voorgaande conclusies, waarbij het patroon is ingericht om onderworpen te worden aan een extractieprocedure met een extractiefluïdum onder een druk van 5 - 22 bar.Airtight-sealed beverage cartridge according to any of the preceding claims, wherein the cartridge is adapted to be subjected to an extraction procedure with an extraction fluid under a pressure of 5 - 22 bar.
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* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998004627A2 (en) * 1996-07-26 1998-02-05 Wolff Walsrode Ag Biaxially stretched, biodegradable and compostable foil
WO1998006571A1 (en) * 1996-08-14 1998-02-19 Sengewald Verpackungen Gmbh Easily compostable composite, multilayered foil, process for producing the same and its use
US6284344B1 (en) * 1999-06-21 2001-09-04 Illinois Tool Works Inc. Multi-layer films
WO2001096102A1 (en) * 2000-06-12 2001-12-20 Rasmussen O B Cross-laminate of films and method of manufacturing
EP1384682A2 (en) * 2002-07-25 2004-01-28 INTERNATIONAL FLAVORS & FRAGRANCES INC. Packaging containing fragrance
DE20317971U1 (en) * 2003-05-13 2004-03-04 Kosloff, Gregory Material, in particular, for packaging purposes is provided with a scent located in or on the material, or in or on a scent carrier used with the material
US20090317650A1 (en) * 2008-06-23 2009-12-24 Inteplast Group, Ltd. Cross-laminated elastic film
US20170341818A1 (en) * 2011-11-01 2017-11-30 Steven Marc Landau System and Method for Applying Aroma Releasing Material to Product Packaging
US20140037916A1 (en) * 2012-08-02 2014-02-06 Bill Reilly Compostable single-cup brew lid
WO2014084724A1 (en) * 2012-10-09 2014-06-05 Hemcell B.V. Melt processed polymer composition derived from leaf sheaths of trees of the genus arecaceae
WO2015121489A1 (en) * 2014-02-17 2015-08-20 Ritter Gmbh Container of biodegradable material with barrier function
EP3059066A1 (en) * 2015-02-18 2016-08-24 M.G. Lavorazione Materie Plastiche S.p.A. Polymeric film for manufacturing covers for single-dose capsules for coffee machines, and method for producing it
WO2017187024A1 (en) * 2016-04-29 2017-11-02 Ahlstrom-Munksjö Oyj Compostable lid intended to seal a capsule and a capsule sealed by the lid

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