WO2014005873A1 - Method for packaging a beverage powder in a beverage capsule - Google Patents
Method for packaging a beverage powder in a beverage capsule Download PDFInfo
- Publication number
- WO2014005873A1 WO2014005873A1 PCT/EP2013/063175 EP2013063175W WO2014005873A1 WO 2014005873 A1 WO2014005873 A1 WO 2014005873A1 EP 2013063175 W EP2013063175 W EP 2013063175W WO 2014005873 A1 WO2014005873 A1 WO 2014005873A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- capsule
- cavity
- packaging
- beverage
- sealing
- Prior art date
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 222
- 235000013361 beverage Nutrition 0.000 title claims abstract description 89
- 238000004806 packaging method and process Methods 0.000 title claims abstract description 61
- 238000000034 method Methods 0.000 title claims abstract description 49
- 239000000843 powder Substances 0.000 title claims abstract description 43
- 235000013353 coffee beverage Nutrition 0.000 claims abstract description 80
- 235000016213 coffee Nutrition 0.000 claims abstract description 76
- 238000007789 sealing Methods 0.000 claims abstract description 63
- 239000012528 membrane Substances 0.000 claims description 66
- 238000007872 degassing Methods 0.000 claims description 36
- 241000533293 Sesbania emerus Species 0.000 claims description 12
- 238000000227 grinding Methods 0.000 claims description 8
- 230000009467 reduction Effects 0.000 claims description 7
- 238000003466 welding Methods 0.000 claims description 7
- 239000007789 gas Substances 0.000 description 57
- 239000000463 material Substances 0.000 description 22
- 238000005520 cutting process Methods 0.000 description 20
- 230000008569 process Effects 0.000 description 17
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 13
- 229910052782 aluminium Inorganic materials 0.000 description 13
- 238000004519 manufacturing process Methods 0.000 description 11
- 239000000796 flavoring agent Substances 0.000 description 9
- 235000019634 flavors Nutrition 0.000 description 9
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 8
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 238000011049 filling Methods 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- -1 polypropylene Polymers 0.000 description 5
- 238000002360 preparation method Methods 0.000 description 5
- 230000004888 barrier function Effects 0.000 description 4
- 238000004320 controlled atmosphere Methods 0.000 description 4
- 239000011261 inert gas Substances 0.000 description 4
- 230000000670 limiting effect Effects 0.000 description 4
- 229910052757 nitrogen Inorganic materials 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 3
- 239000004952 Polyamide Substances 0.000 description 3
- 238000009825 accumulation Methods 0.000 description 3
- 150000001491 aromatic compounds Chemical class 0.000 description 3
- 230000015556 catabolic process Effects 0.000 description 3
- 238000006731 degradation reaction Methods 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 238000000605 extraction Methods 0.000 description 3
- 239000008187 granular material Substances 0.000 description 3
- RZXDTJIXPSCHCI-UHFFFAOYSA-N hexa-1,5-diene-2,5-diol Chemical compound OC(=C)CCC(O)=C RZXDTJIXPSCHCI-UHFFFAOYSA-N 0.000 description 3
- 239000007788 liquid Substances 0.000 description 3
- 229920002647 polyamide Polymers 0.000 description 3
- 239000000126 substance Substances 0.000 description 3
- 238000012546 transfer Methods 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 2
- 239000004743 Polypropylene Substances 0.000 description 2
- 229920002472 Starch Polymers 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 229910002092 carbon dioxide Inorganic materials 0.000 description 2
- 238000004891 communication Methods 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 230000003467 diminishing effect Effects 0.000 description 2
- 238000001802 infusion Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229910052710 silicon Inorganic materials 0.000 description 2
- 239000010703 silicon Substances 0.000 description 2
- 239000008107 starch Substances 0.000 description 2
- 235000019698 starch Nutrition 0.000 description 2
- 239000003039 volatile agent Substances 0.000 description 2
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 1
- 244000269722 Thea sinensis Species 0.000 description 1
- 235000009470 Theobroma cacao Nutrition 0.000 description 1
- 244000299461 Theobroma cacao Species 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 235000019568 aromas Nutrition 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 235000010633 broth Nutrition 0.000 description 1
- 239000000872 buffer Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- 239000011111 cardboard Substances 0.000 description 1
- 239000005025 cast polypropylene Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000001311 chemical methods and process Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000005489 elastic deformation Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 235000013350 formula milk Nutrition 0.000 description 1
- 238000005007 materials handling Methods 0.000 description 1
- 235000013336 milk Nutrition 0.000 description 1
- 239000008267 milk Substances 0.000 description 1
- 210000004080 milk Anatomy 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 239000000123 paper Substances 0.000 description 1
- 230000036961 partial effect Effects 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000002829 reductive effect Effects 0.000 description 1
- 230000000284 resting effect Effects 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 235000013616 tea Nutrition 0.000 description 1
- 230000001960 triggered effect Effects 0.000 description 1
- 238000009461 vacuum packaging Methods 0.000 description 1
- 238000013022 venting Methods 0.000 description 1
- 239000000341 volatile oil Substances 0.000 description 1
- 230000003313 weakening effect Effects 0.000 description 1
Classifications
-
- 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
-
- 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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/04—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied
- B65B31/041—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles acting from above on containers or wrappers open at their top
- B65B31/042—Evacuating, pressurising or gasifying filled containers or wrappers by means of nozzles through which air or other gas, e.g. an inert gas, is withdrawn or supplied the nozzles acting from above on containers or wrappers open at their top the nozzles being arranged for insertion into, and withdrawal from, the container or wrapper
-
- 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
- B65B29/022—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into capsules
-
- 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
- B65B31/00—Packaging articles or materials under special atmospheric or gaseous conditions; Adding propellants to aerosol containers
- B65B31/02—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas
- B65B31/025—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers
- B65B31/028—Filling, closing, or filling and closing, containers or wrappers in chambers maintained under vacuum or superatmospheric pressure or containing a special atmosphere, e.g. of inert gas specially adapted for rigid or semi-rigid containers closed by a lid sealed to the upper rim of the container, e.g. tray-like container
-
- 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
- B65B7/00—Closing containers or receptacles after filling
- B65B7/16—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons
- B65B7/162—Closing semi-rigid or rigid containers or receptacles not deformed by, or not taking-up shape of, contents, e.g. boxes or cartons by feeding web material to securing means
- B65B7/164—Securing by heat-sealing
-
- 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
- B65D77/00—Packages formed by enclosing articles or materials in preformed containers, e.g. boxes, cartons, sacks or bags
- B65D77/003—Articles enclosed in rigid or semi-rigid containers, the whole being wrapped
-
- 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
Definitions
- This invention relates generally to a method for packaging a beverage powder tending to evolve a gas in a beverage capsule. It also relates to a beverage capsule so produced. In particular, this invention relates to such capsules as adapted for coffee beverages.
- Coffee beans before being used to prepare a coffee beverage, must generally be roasted. This process induces numerous chemical reactions and physical changes within the coffee beans, which must be accounted for when packaging the roasted coffee.
- the roasting process is what produces the characteristic flavor of coffee by causing the green coffee beans to expand and to change in color, aroma and density.
- the oils and aromatic volatiles contained and/or developed during roasting confer the aroma and flavor of the coffee beverage produced therefrom, but are also prone to degradation when exposed to the oxygen in the surrounding air. It is thus important to protect the roasted coffee from the surrounding air, to maintain optimal freshness and shelf life.
- the roasting process also causes the production of gases within the coffee beans, primarily carbon dioxide and carbon monoxide. These gases are slowly evolved by the coffee subsequent to roasting in a process called "degassing." Grinding the roasted coffee beans will accelerate this process.
- Such capsules may be configured so as to be hermetically sealed up until use. It is evident that by such hermetical sealing, it is meant that a gas transfer is not made possible in any direction between the inside of the capsule and the external atmosphere at least for many months. This is desirable, as the capsule will prevent the essential oils present in the coffee from degradation caused by contact with oxygen in the air. This improves the flavor and shelf life of the coffee within such a capsule. It is also evident that due to its hermetical closure, the capsule is configured for a single use.
- coffee will evolve gas after roasting.
- the container When the ground coffee is packaged in a sealed container, the container will trap any gases evolved by the coffee contained within, which in some cases may cause the container to rupture under the pressure generated by the evolved gas.
- the container must be constructed more robustly, requiring more materials for its construction and increasing the cost of its fabrication.
- the coffee is held aside for a period of time, allowing substantially all of the gases to be released from the coffee before it is packaged in containers. This process is known in the art as "degassing.” By degassing the coffee beforehand, one may avoid the evolution of gas within the sealed container and the accompanying accumulation of pressure.
- the step of degassing beforehand coffee causes a loss of aromatic compounds.
- This aroma loss reduces the aroma intensity and modifies the aromatic profile of the final beverage obtained from the extraction of the beverage capsule.
- the degassing process is generally accomplished by the use of degassing silos or buffers, within which the coffee is stored while it degasses.
- the silos are generally provided with means for removing the evolved gases, and may optionally be provided with means for introducing an inert gas.
- This inert gas generally nitrogen, excludes oxygen from the silos and prevents degradation of the coffee.
- the degassing time is usually between 30 and 60 minutes for a partial degassing to 24 hours or more for a full degassing.
- the degassing time is usually between 30 and 60 minutes for a partial degassing to 24 hours or more for a full degassing.
- a large part of volatiles aromas of the coffee are lost, diminishing the flavor and the aroma of the coffee beverage.
- WO2008129350 refers to a machine for packaging capsules in a vacuum and/or in a controlled atmosphere. After filling with coffee, the capsules are partially closed by an hermetic film. Then, a vacuum is formed inside the capsules and sealed by a thermo-sealing vacuum device. Optionally, an inert gas can be inserted in the capsule after drawing a vacuum to fill the headspace of the capsule with a controlled atmosphere.
- This invention does not deal with a better preservation of the aroma of the packaged product. In particular, there is no indication that the degassing of the product is minimized before the capsule is hermetically sealed and gas is kept emanating into the cavity.
- the invention seeks to eliminate the holding (degassing) period for coffee before packing it. It so relates to a coffee package with a self- venting reclosure can.
- the coffee is immediately filled into the can, thus omitting the conventional holding cycle.
- the filled can is then closed under vacuum.
- the can comprises a valve means permitting a portion of the gas within the container to pass.
- the problem of preserving aroma is not tackled since the evolving gas is allowed to escape out of the capsule.
- US4069349 refers to a process for vacuum packaging of roasted ground coffee in pouches.
- the pouches are partially sealed, with a tortuous unsealed passage, and then stored for a predetermined period of time to permit the gases to evolve from the pouches and then sealing the pouches to prevent further gaseous passage to and from the product.
- the degassing of the product outside the pouch causes the loss of aromatic compounds.
- WO201 103971 1 relates to a method and machine for packing infusion product into capsules; the machine comprising a series of station for manipulating, filling, sealing and overwrapping the capsules and all enclosed within a zone in controlled atmosphere (using nitrogen, for example) so as to preserve the chemical and physical qualities of the product, for example, aroma in the coffee.
- a zone in controlled atmosphere using nitrogen, for example
- WO2010007633 refers to a machine for packaging products, in particular capsules for machines for delivering infusion beverages.
- a vacuum bell provides vacuum around each capsule to be welded.
- vacuum compensating means take care of inserting gas, in particular nitrogen, inside each capsule in such a way to compensate the presence of vacuum.
- the welding means take care of welding the aluminium sheet onto the edge of the respective capsule.
- the product must be degassed before closure of the capsule to prevent over-pressure due to the presence of the compensating gas. Such degassing causes the loss of volatile aromatic compounds.
- the invention is directed to a method for packaging in a capsule a beverage powder tending to evolve a gas, said capsule comprising a capsule body defining a cavity containing a quantity of beverage powder, said cavity being hermetically sealed up or respectively, the capsule being hermetically sealed up by an over-packaging.
- the packaging method comprises the following steps: - providing a quantity of said beverage powder evolving a gas within said cavity of said capsule body;
- the vacuum created within the beverage capsule, or respectively within the over-packaging, before the capsule or respectively the over-packaging is sealed compensates for the pressure generated by the gases evolved from the coffee.
- the accumulation of evolved gas is thus prevented from building to a pressure that might compromise the integrity of the capsule or respectively of the over-packaging.
- the volatile aroma and flavor compounds of the beverage produced therefrom are preserved and maintained in the capsule or respectively, in the over-packaging.
- the method comprises a step of grinding coffee beans before the step of sealing, the duration of a degassing step between grinding the coffee beans and sealing the cavity, or respectively, sealing the over-packaging is less than 25 minutes, preferably less than 20 minutes, and most preferably comprised between 5 and 15 minutes.
- degassing time is reduced, and in any event, is shorter than the duration requested in prior packaging method used to encapsulate ground coffee in a hermetically close capsule.
- the pressure reduction below atmospheric pressure applied into the cavity, or respectively, into the over-packaging, in the step of applying a vacuum is comprised between 100 and 800 mbar, and preferably between 250 and 700 mbar, most preferably between 300 and 600 mbar.
- the atmospheric pressure is the value of the pressure at the location where the step of applying a vacuum occurs.
- the internal pressure is comprised between 1050 mbar and 1800 mbar, preferably between 1050 and 1600 mbar, most preferably between 1050 and 1350 mbar.
- the internal pressure is stabilized to a value comprised between 1050 mbar and 1800 mbar, preferably between 1050 and 1600 mbar, most preferably between 1050 and 1350 mbar, about 72 hours after said sealing step.
- This internal pressure is acceptable in term of manufacturing a sealed- up capsule and is compatible with a 12 month shelf-life for the beverage capsules.
- the invention concerns a beverage capsule comprising a capsule body defining a cavity and being adapted to be hermetically sealed up with a quantity of beverage powder provided within said cavity, fabricated by the method of packaging as described above.
- the beverage capsule so fabricated will embody the advantages of the method as detailed above.
- the cavity is provided with a predetermined quantity of roast and ground coffee.
- the cavity is provided with a quantity of roast and ground coffee comprised between 4 and 16 grams, preferably between 5 and 13 grams.
- the cavity of the capsule has also preferably a volume between 8 to 30 ml, preferably 10 to 20 ml, most preferably 12-16 ml.
- FIG. 1 is a series of orthogonal section views depicting an attachment means, a cutting means, a vacuum-application means, and a sealing means adapted to perform a method of packaging according to an embodiment of the invention
- FIG. 2 is a series of orthogonal views of attachment apparatuses in four different configurations
- FIG. 3 is a flowchart depicting an embodiment of the method of packaging as integrated into a process for the fabrication of beverage capsules.
- FIG. 4 is a schematic view of a method for packaging a capsule in a sealing over-packaging according to an alternative embodiment of the invention.
- Figure 1 is a sequence of section views depicting the sealing of a beverage capsule according to the invention.
- Figure 1 depicts the attachment and cutting steps in views A through D, and the vacuum application and sealing steps in views E through H. Portions of the apparatus are omitted from each of these views for purposes of clarity.
- View A depicts an attachment means 100 and a cutting means 101 disposed in a first position, prior to the start of an attachment step.
- the attachment means 100 and the cutting means 101 are generally tubular and coaxial about the first longitudinal axis 102.
- a capsule body 103 is positioned within the base plate 104, which is provided with a capsule seat 105 in which the capsule body 103 is positioned.
- the base plate 104 is preferably configured to be mobile, facilitating a high rate of production of beverage capsules. This mobile configuration may comprise such means as a conveyor belt system or rotating turret, for example.
- the capsule body 103 is positioned beneath the attachment means 100 and cutting means 101 so as to be coaxial with them about the first longitudinal axis 102.
- the capsule body 103 defines a cavity 106, in which a predetermined quantity of roast and ground coffee powder 107 is provided.
- the capsule body 103 is substantially cup-shaped, and is provided with an open end 108 communicating with said cavity 106.
- the capsule body 103 is further provided with a flange 109, disposed about the circumference of the capsule body 103 at the open end 108.
- the capsule body 103 is preferably fabricated from a formable material such as aluminum, plastic, starch, cardboard, or combination thereof. Where the capsule body itself is not gas-impermeable, a gas barrier layer may be incorporated therein to prevent the entry of oxygen.
- the gas barrier may comprise a coating, film, or layer of a gas-impermeable material such as aluminum, ethylene vinyl alcohol, polyamide, oxides of aluminum or silicon, or combinations thereof.
- the capsule body 103 is formed of deep-drawn aluminum.
- the capsule body 103 is formed of deep-drawn polypropylene and aluminum.
- the capsule body 103 is thermoformed from a combination of polypropylene, ethylene vinyl alcohol, and polyethylene terephthalate.
- the flange 109 and the capsule seat 105 are configured so that the capsule body 103 protrudes through the base plate 104, with the flange 109 resting directly on the base plate 104 and substantially the entire beverage capsule 103 being disposed beneath the base plate 104.
- the capsule seat may be configured as a cup, in which the capsule body is seated.
- a portion of membrane material 1 10 is disposed between the cutting means 101 and the base plate 104.
- Said membrane material 1 10 is preferably provided in the form of a continuous sheet or web, which may be fed into the apparatus by techniques adapted from those known in the art of materials handling.
- the membrane material 1 10 is preferably flexible, permitting moderate elastic deformation.
- the membrane material 1 10 may have a thickness between 10 and 250 microns, preferably between 30 and 100 microns.
- the membrane material 1 10 comprises at least a base layer fabricated of aluminum, polyester (e.g. PET or PLA), polyolefin(s), polyamide, starch, paper, or any combination thereof.
- the base layer is preferentially formed of a laminate comprising two or more sub-layers of these materials.
- the base layer may comprise a sub-layer which acts as a gas barrier, if none of the other sub-layers are of a material which is impermeable to gas.
- the gas barrier sub-layer is fabricated from aluminum, ethylene vinyl alcohol, polyamide, oxides of aluminum or silicon, or combinations thereof.
- the membrane material 1 10 preferably also comprises a sealant layer, e.g. polypropylene, disposed to create a seal with the capsule body 103.
- the membrane material 1 10 is an aluminum layer between 25 and 40 microns.
- the membrane material 1 10 comprises a base layer with two sub-layers: an external sub-layer made of PET and an internal sub-layer made of aluminum.
- the aluminum sub-layer serves the function of preventing undesirable transmission of light, moisture, and oxygen.
- the membrane material 1 10 comprises three sub-layers: an external sub-layer of PET 5 to 50 microns thick, a middle sub-layer of aluminum 5 to 20 microns thick, and an internal sub-layer of cast polypropylene 5 to 50 microns thick.
- View B depicts the apparatus in a second position, during a cutting step.
- the cutting means 101 is advanced downward along the first longitudinal axis 102 into the membrane material 1 10.
- the cutting means 101 is sharpened along its peripheral edge 1 1 1 so as to cut the membrane material 1 10 when pressed into it.
- alternate configurations such as a hot-knife apparatus, may be preferable for certain compositions of heat-sensitive membrane material.
- the cutting means 101 is advanced through the membrane material 1 10, cutting a membrane 1 12 of the desired size and shape from the membrane material 1 10.
- View C depicts the apparatus in a third position, during an attachment step.
- the attachment means 100 At the lower end 1 13 of the attachment means 100 are disposed a plurality of faces disposed substantially perpendicular to the longitudinal axis 102, which are pressed into the membrane 1 12.
- the attachment means 100 is advanced so that the lower end 1 13 presses the membrane 1 12 into the flange 109 over a plurality of regions corresponding to the aforementioned faces.
- the attachment means 100 is configured to attach the membrane 1 12 to the flange 109 over the regions where the faces of the lower end 1 13 press said membrane 1 12 into the flange 109 of the capsule body 103.
- the attachment of the membrane 1 12 to the flange 109 of the capsule body 103 is achieved by heat-sealing; though in other embodiments alternate techniques such as ultrasonic welding may be preferred.
- the attachment means 100 is therefore preferably furnished with appropriate means for attaching the membrane 1 12 to the flange 109 during the attachment step.
- appropriate means may comprise an electrical resistance heater, hot air jet, or ultrasonic welding horn. This will make the apparatus more compact and space-efficient.
- View D depicts the apparatus in a fourth position, after the completion of the attachment step.
- the attachment means 100 and cutting means 101 are withdrawn from the capsule body 103 and membrane 1 12.
- the scrap membrane material 1 10 may be removed, while the base plate 104 is advanced in direction
- the step for cutting the membrane 1 12 as depicted in View B and the step for attaching said membrane 1 12 to the flange 109 as depicted in View C are performed sequentially but in a continuous movement of descent of the cutting and attachment means 101 , 100.
- a slight vacuum is further applied through the attachment means to maintain the membrane 1 12 in coaxial position in axis 102 during the cutting and attachment steps. This is advantageous, in that it minimizes the time to fabricate a capsule and thus increases the rate at which capsules are produced.
- View E depicts the apparatus in a fifth position, prior to the start of a sealing step.
- the vacuum-application means 1 15 and the sealing means 1 16 are preferably tubular and disposed coaxially about the second longitudinal axis 1 17.
- the cutting and attachment means depicted in the previous steps are omitted here for clarity; however, the cutting and attachment means are ideally disposed adjacent or in close proximity to the vacuum-application means 1 15 and sealing means 1 16, making the apparatus more compact and space-efficient.
- the base plate 104 is advanced in the direction 1 14 until the capsule body 103 and membrane 1 12 are also coaxial with the vacuum-application means
- View F depicts the apparatus in a sixth position, during a vacuum- application step.
- the vacuum-application means 1 15 have been advanced so as to create an airtight seal between the mouth 1 18 of the vacuum-application means 1 15 and the flange 109 of the capsule body 103.
- a vacuum 1 19 is applied to the capsule body 103 through the vacuum-application means 1 15, reducing the pressure in the cavity 106 of the capsule body 103 below atmospheric pressure.
- the gas within the cavity 106 of the capsule body 103 is drawn out through the plurality of spaces between the flange 109 and the membrane 1 12, which are defined by the regions where said membrane 1 12 remains unattached to said flange 109.
- the gas can be air or any inert gas such as nitrogen, CO 2 or a combination thereof. In this way, the cavity 106 of the capsule body 107 is voided of gas without also sucking any of the coffee powder 107 from the cavity 106. In this way, the aspiration of the coffee powder into the apparatus or its entrainment between the flange 109 and membrane 1 12 is avoided.
- the vacuum-application step is preferentially configured so that the vacuum may be rapidly applied to the capsule body 103 while avoiding sucking the coffee powder 107 from the cavity 106. It is known that the rapid application of a vacuum to a beverage capsule may cause some of the coffee powder within to be sucked out, which may result in damage to the apparatus from aspirated coffee powder. The coffee powder may also become entrained between the sealing surfaces of the beverage capsule, weakening the seal and diminishing its aesthetic properties. The application of vacuum may also cause the sealing means to move, further compromising seal integrity.
- the attachment of the membrane 1 12 to the flange 109 of the capsule body 103 over a plurality of regions will prevents the aspiration and entrainment of the coffee powder 107 between the flange 109 and the membrane 1 12, as well as prevent the displacement of the membrane relative to the capsule body during the application of the vacuum 1 19.
- the integrity of the beverage capsule seal and the reliability of the sealing apparatus are thus preserved even when the vacuum is applied very rapidly, permitting higher-quality beverage capsules to be produced at a faster rate.
- the vacuum-application step is also preferentially configured to enable the conditions within the capsule to be monitored as the vacuum 1 19 is applied.
- the vacuum-application means permits the rapid application of the vacuum 1 19 to a single capsule body 103, rather than the slower application of a vacuum to a group of capsule bodies in a vacuum chamber.
- one may continually adapt the parameters of the vacuum-sealing process to optimize the sealing of each capsule while still maintaining an overall high rate of production.
- View G depicts the apparatus in a seventh position, during a sealing step.
- the mouth 1 18 of the vacuum-application means 1 15 is kept in contact with the flange 109 of the capsule body 103, such that the vacuum within the cavity 106 of the capsule body 103 is maintained.
- the sealing means 1 16 is advanced into contact with the membrane 1 12, pressing into it along the sealing edge 120 disposed at an end of said sealing means 1 16.
- the membrane 1 12 is pressed into the flange 109 by the sealing means 1 16, thereby bonding the remaining unattached regions of the membrane 1 12 to the surface of the flange 109 and hermetically sealing the membrane 1 12 to the capsule body 103. While the remaining unattached regions of the membrane are bonded, the bond of the attached regions created during the attachment step may be renewed.
- the air-tight hermetic seal created between the flange 109 and the membrane 1 12 will thereby preserve the vacuum in the cavity 106 of the capsule body 103, protecting the coffee powder 107 from exposure to air and subsequent loss of flavor
- View H depicts the sealed beverage capsule after the completion of the sealing step.
- the sealing means 1 16 is withdrawn to allow the bond to solidify.
- the vacuum is stopped in the vacuum means exposing the capsule body 103 and membrane 1 12 to atmospheric pressure and causing the membrane 1 12 to take a concave form as depicted.
- the vacuum-application means 1 15 is withdrawn.
- the vacuum which was applied to the capsule body 103 in an earlier step is preserved therein by the seal between the flange 109 and the membrane 1 12.
- the base plate 104 is then moved off in direction 1 14, removing the capsule to be packaged and distributed and bringing the next capsule into position for vacuum sealing.
- the membrane 1 12 will be deflected inwardly into the capsule body 103, a result of the vacuum within the beverage capsule and exposure to the atmospheric pressure.
- the coffee powder 107 within the beverage capsule degasses, the gases which are evolved are kept within the cavity 106 of the beverage capsule by the membrane 1 12, the capsule body 103, and the hermetic seal between the two.
- This accumulation of evolved gases will cause the pressure within the beverage capsule to increase until equilibrium pressure is reached.
- At equilibrium there will be a positive pressure within the beverage capsule, i.e. a pressure above the atmospheric pressure, causing the membrane 1 12 to be deflected outwardly.
- the vacuum which is sealed into the beverage capsule thus partially offsets the pressure generated by the gases evolved from the coffee powder 107.
- the degree to which the vacuum offsets the evolved gases may vary from embodiment to embodiment, depending on the volume of the beverage capsule, the mass of coffee provided within, and the type and degree of roast of the coffee powder itself. In any case, the vacuum within the beverage capsule compensates for the degassing at least to the extent that the evolved gas is prevented from compromising the structural integrity of the beverage capsule and its hermetic properties.
- the pressure reduction below atmospheric pressure is comprised between 100 and 800 mbar, preferably 250 to 700 mbar and more preferably between 300 and 600 mbar.
- the gases evolved by the coffee powder during degassing will continue to accumulate in the cavity 106 of the beverage capsule, causing the internal pressure of the beverage capsule to rise above atmospheric pressure in approximately 5 hours.
- the internal pressure of the beverage capsule will preferably reach equilibrium between 1050 and 1800 mbar, preferably between 1050 and 1600 mbar, and most preferably between 1050 and 1350 mbar, in approximately 72 hours after the sealing of the capsule.
- the method is preferably configured so that all, or substantially all, of the degassing occurs within the beverage capsule after it has been sealed. While the pressure within the beverage capsule will be negative at time of sealing, the evolved gases will rapidly increase the pressure within the capsules. In a preferred embodiment, the capsule will rise above atmospheric pressure in less than 5 hours and stabilize in approximately 72 hours.
- Figure 2 is a series of orthogonal views depicting a series of configurations for the attachment means.
- the attachment means comprises at its bottom end a plurality of faces, which are pressed into the membrane to attach it to the flange of the capsule body over a plurality of regions corresponding to said faces.
- Figure 2A depicts an attachment means provided with two faces 200 of a first kind.
- the faces 200 of a first kind are separated by two channels 201 of a first kind.
- the membrane When pressed into a membrane during the attachment step as described above, the membrane will be attached to a flange of a capsule body over the portion of the surface of the flange corresponding to the faces 200 of a first kind, while remaining unattached and permitting fluid communication between the cavity of the capsule body and the surrounding atmosphere.
- the air in the capsule body Upon the application of a vacuum, the air in the capsule body will flow out through the unattached regions between the membrane and flange defined by the channels 201 of a first kind.
- Figure 2B depicts an attachment means provided with four faces 202 of a second kind, separated by four channels 203 of a second kind.
- Such an attachment means will attach a membrane to a flange of a capsule body over a plurality of regions corresponding to each of the four faces 202 of a second kind, while leaving the regions of the membrane corresponding to the four channels 203 of a second kind unattached.
- Figure 2C depicts an attachment means provided with eight faces 204 of a third kind, separated by eight channels 205 of a third kind.
- the faces 204 of a third kind will define the region over which a membrane is attached to the flange of a capsule body, and the channels 205 of a third kind defining where it is unattached.
- Figure 2D depicts an attachment means provided with eight faces 206 of a fourth kind, separated by eight channels 207 of a fourth kind.
- the faces 206 of a fourth kind are much smaller than the faces 204 of a third kind, while the channels 207 of a fourth kind are much larger than the channels 205 of a third kind.
- the proportion of the flange of a capsule body to which a membrane will be attached by the attachment device in Figure 2D is much lower than would be achieved by the attachment device of Figure 2C, with a corresponding increase in the size of the regions of the flange to which the membrane remains unattached.
- attachment devices may in this way be configured to best suit the particular application in which the attachment device is to be employed.
- the attachment devices are altered by adjusting their number and size; however, in other embodiments it may be advantageous to modify other elements of their form and geometry such as shape, thickness, or placement about the lower end of the attachment means.
- the attachment means may reduce the time required to apply the vacuum to the capsule body while still minimizing the aspiration and entrainment of the coffee powder or other edible granules contained within the capsule body.
- the sealing of the beverage capsules may thus be optimized to achieve a maximum output at a minimum cost.
- FIG. 3 is a flowchart depicting the method of packaging as integrated into a process for the fabrication of beverage capsules, said operation comprising a series of elements.
- the first step of the operation is Capsule Body Destacking 300.
- the empty capsule bodies are generally stored stacked atop each other when stored before use, and so must be separated before they can be further processed.
- the capsule bodies are separated from each other and placed in the proper orientation to continue in the process.
- the Coffee Preparation Process 301 furnishes a supply of coffee powder for packaging within the beverage capsules.
- coffee beans are roasted to the desired degree of roasting and then ground to the desired degree of fineness.
- the gases generated within the coffee beans during roasting are evolved from the coffee. Some degassing will occur between the roasting of the coffee and the sealing of the beverage capsule. It is preferable, however, to configure the process for fabrication of beverage capsules to minimize degassing outside of the capsule, so that the degassing essentially occurs after the beverage capsule has been sealed. In an embodiment, the duration between the grinding of the coffee and the sealing of the capsule is less than ten minutes.
- a portion of the coffee powder provided by the Coffee Preparation Process 301 is placed within the capsule body and densified, so that the coffee is settled within the capsule body and the amount of gas therein is so minimized.
- the beverage powder may be compacted into a tablet during the Coffee Preparation Process 301 step, which is then positioned in the capsule body during the step of Product Filling & Densifying 302.
- each element of the operation is linked by a step for Transport 303, where the capsule body is transferred between the devices for carrying out each element of the operation.
- the elements for carrying out each of the elements of the process may be located in proximity to each other, or even integrated into each other, so that the time required for transporting the beverage capsule between elements is minimized. The process is thereby rendered more space-efficient and economical.
- Membrane Attachment and Cutting 305 is attached to the flange of the capsule body at a plurality of regions of the flange, leaving a plurality of unsealed regions on said flange as well.
- the membrane is also cut to a size which will cover the flange and open end of the capsule body.
- Vacuum Application & Sealing 306 depicted in Figure 1 , Views E-H.
- a vacuum is applied to the capsule body, removing the air from within through the plurality of unsealed regions of the flange.
- the membrane is then sealed over the entirety of the surface of the flange, preserving the vacuum within the capsule.
- the vacuum within the capsule is a reduction of pressure high enough to offset the pressure generated by the gases evolved by the coffee as it degasses in the capsule.
- a normally configured beverage capsule will so resist the pressure accumulated within the sealed capsule as a result of the evolved gases.
- the capsule is transferred to Distribution 308, where it may be packaged in a box, sleeve, bag, or the like and distributed for sale.
- Figure 4 depicts a method for packaging a capsule 400 containing beverage powder tending to evolve a gas, in an over-packaging.
- the method comprises providing a quantity of beverage powder capable of evolving a gas within a cavity 406 of a capsule body 403.
- the capsule body 403 is substantially cup-shaped and is provided with an open end 408 communicating with said cavity and a bottom end 401.
- the bottom end may be apertured.
- a plurality of small apertures can be present in the wall of the bottom end 401 to facilitate (without need for a puncturing member) the feeding of water and/or discharge of beverage during extraction.
- the apertures are small enough to allow liquid transfer but maintain powder in the cavity.
- the capsule 400 may further comprise a flange 409 onto which is sealed a lid such as a flexible membrane 412 (Step II).
- the membrane material is preferably provided in the form of a continuous sheet or web.
- the lid can be a rigid or semi-rigid wall member connected to the flange by welding, e.g., heat or ultrasonic welding, and/or press-fitting in the cavity.
- the lid may be formed of a material hermetical to gas and sealed hermetically on the flange. However, it may also be non-hermetic to gas and liquid.
- the lid may be apertured. A plurality of small apertures can be present in the lid to facilitate (without need for a puncturing member) the feeding of water and/or discharge of beverage during extraction. The apertures are small enough to allow liquid transfer but maintain powder in the cavity.
- the capsule 400 is sealed in an over-packaging 500
- the over-packaging may be a flexible or rigid package.
- it can be a flow wrap package sealed onto a seam 501.
- a vacuum is drawn before and during sealing of the over-packaging in the interior of the over-packaging. Since the capsule 400 is permeable to gas, a vacuum is formed in the cavity as well. A pressure equilibrium is rapidly obtained so that the pressure in the cavity is the same as the pressure between the capsule 400 and the over-packaging 500.
- the gases generated within the coffee beans during roasting are evolved from the coffee. Some degassing will occur between the roasting and the sealing of the over-packaging. It is preferably, however, to configure the process for fabrication of the packed beverage capsule to minimize degassing before sealing, so that the degassing essentially occurs after the beverage capsule has been sealed in the over-packaging (Step IV). As a result of the gas emanating in the capsule and traversing the capsule, the pressure in the over-packaging becomes above the atmospheric pressure. In this way the flavor of the coffee is most effectively preserved.
- the over-packaging is essentially impermeable to gas so that the evolved gases after sealing is maintained in the over-packaging.
- the hermetical closure to the gases refers to the ability of the package, that is the capsule itself or the over-packaging, to maintain an internal pressure above 1050 mbar for a period of at least one week.
- the present invention may be adapted to fabricate beverage capsules for the preparation of various kinds of alimentary substances, for example broth, cocoa, coffee, infant formula, milk, tea, tisane or any combination thereof.
- the edible granules comprising said alimentary substances may be provided in various forms and sizes, such as flakes, grains, granules, pellets, powders, or shreds and any combinations thereof. While the particular embodiment of the preceding description is directed to a beverage capsule containing a quantity of roasted, powdered coffee, it should not be construed as limiting the scope of the invention to beverage capsules so configured.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Dispersion Chemistry (AREA)
- Vacuum Packaging (AREA)
- Tea And Coffee (AREA)
- Apparatus For Making Beverages (AREA)
- Packages (AREA)
- Packging For Living Organisms, Food Or Medicinal Products That Are Sensitive To Environmental Conditiond (AREA)
- Formation And Processing Of Food Products (AREA)
Abstract
Description
Claims
Priority Applications (13)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
MX2014016078A MX2014016078A (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule. |
CA2876771A CA2876771A1 (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule |
ES13730897.9T ES2598160T3 (en) | 2012-07-04 | 2013-06-25 | Method for packaging a powdered beverage in a beverage capsule |
EP13730897.9A EP2870070B1 (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule |
JP2015519029A JP2015528695A (en) | 2012-07-04 | 2013-06-25 | Method for filling beverage powder in beverage capsules |
AU2013286098A AU2013286098B2 (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule |
KR20157002385A KR20150028828A (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule |
RU2015103513A RU2015103513A (en) | 2012-07-04 | 2013-06-25 | METHOD FOR PACKING POWDER FOR PREPARING DRINKS IN CAPSULES FOR PREPARING DRINKS |
US14/412,034 US20150158609A1 (en) | 2012-07-04 | 2013-06-25 | Method for Packaging a Beverage Powder in a Beverage Capsule |
IN10167DEN2014 IN2014DN10167A (en) | 2012-07-04 | 2013-06-25 | |
CN201380035036.7A CN104470809B (en) | 2012-07-04 | 2013-06-25 | For the method for the packaged beverage powder in drink capsule |
BR112014032864A BR112014032864A2 (en) | 2012-07-04 | 2013-06-25 | method to pack a beverage powder in a beverage capsule |
IL235873A IL235873A (en) | 2012-07-04 | 2014-11-24 | Method for packaging a beverage powder in a beverage capsule |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
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EP12174911 | 2012-07-04 | ||
EP12174911.3 | 2012-07-04 |
Publications (1)
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WO2014005873A1 true WO2014005873A1 (en) | 2014-01-09 |
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PCT/EP2013/063175 WO2014005873A1 (en) | 2012-07-04 | 2013-06-25 | Method for packaging a beverage powder in a beverage capsule |
Country Status (16)
Country | Link |
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US (1) | US20150158609A1 (en) |
EP (1) | EP2870070B1 (en) |
JP (1) | JP2015528695A (en) |
KR (1) | KR20150028828A (en) |
CN (1) | CN104470809B (en) |
AR (1) | AR094718A1 (en) |
AU (1) | AU2013286098B2 (en) |
BR (1) | BR112014032864A2 (en) |
CA (1) | CA2876771A1 (en) |
ES (1) | ES2598160T3 (en) |
IL (1) | IL235873A (en) |
IN (1) | IN2014DN10167A (en) |
MX (1) | MX2014016078A (en) |
PT (1) | PT2870070T (en) |
RU (1) | RU2015103513A (en) |
WO (1) | WO2014005873A1 (en) |
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WO2022058370A1 (en) * | 2020-09-15 | 2022-03-24 | Rychiger Ag | Machine for the continuous production of disposable capsules for beverages |
WO2022240100A1 (en) | 2021-05-10 | 2022-11-17 | 동서식품주식회사 | Beverage preparation apparatus comprising shape transformation member, and method for preparing beverage by means of same |
WO2022240099A1 (en) | 2021-05-10 | 2022-11-17 | 동서식품주식회사 | Deformable capsule, method for preparing beverage by using same, and beverage preparation system comprising same |
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AU2013286098A1 (en) | 2014-12-18 |
PT2870070T (en) | 2016-12-20 |
ES2598160T3 (en) | 2017-01-25 |
IL235873A (en) | 2017-09-28 |
RU2015103513A (en) | 2016-08-20 |
EP2870070A1 (en) | 2015-05-13 |
CA2876771A1 (en) | 2014-01-09 |
KR20150028828A (en) | 2015-03-16 |
US20150158609A1 (en) | 2015-06-11 |
IN2014DN10167A (en) | 2015-08-21 |
IL235873A0 (en) | 2015-01-29 |
AR094718A1 (en) | 2015-08-26 |
JP2015528695A (en) | 2015-10-01 |
CN104470809A (en) | 2015-03-25 |
AU2013286098B2 (en) | 2017-03-02 |
MX2014016078A (en) | 2015-04-10 |
EP2870070B1 (en) | 2016-09-14 |
BR112014032864A2 (en) | 2017-06-27 |
CN104470809B (en) | 2017-06-13 |
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