EP3601102A1 - Kapsel mit platine für getränkebestandteile - Google Patents
Kapsel mit platine für getränkebestandteileInfo
- Publication number
- EP3601102A1 EP3601102A1 EP18712813.7A EP18712813A EP3601102A1 EP 3601102 A1 EP3601102 A1 EP 3601102A1 EP 18712813 A EP18712813 A EP 18712813A EP 3601102 A1 EP3601102 A1 EP 3601102A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- layer
- pet
- capsule
- pbt
- board
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
- 239000002775 capsule Substances 0.000 title claims abstract description 45
- 239000000470 constituent Substances 0.000 title claims abstract description 6
- 239000010410 layer Substances 0.000 claims abstract description 82
- 229920001707 polybutylene terephthalate Polymers 0.000 claims abstract description 37
- 229920000139 polyethylene terephthalate Polymers 0.000 claims abstract description 37
- 239000005020 polyethylene terephthalate Substances 0.000 claims abstract description 37
- 238000007789 sealing Methods 0.000 claims abstract description 24
- 230000004888 barrier function Effects 0.000 claims abstract description 15
- -1 polybutylene terephthalate Polymers 0.000 claims abstract description 10
- 239000012792 core layer Substances 0.000 claims abstract description 9
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910052782 aluminium Inorganic materials 0.000 claims abstract description 7
- 241001122767 Theaceae Species 0.000 claims abstract description 3
- 238000007639 printing Methods 0.000 claims description 9
- 235000013361 beverage Nutrition 0.000 claims description 7
- 239000000314 lubricant Substances 0.000 claims description 5
- 239000000853 adhesive Substances 0.000 claims description 4
- 230000001070 adhesive effect Effects 0.000 claims description 4
- 239000007767 bonding agent Substances 0.000 claims description 3
- 239000000758 substrate Substances 0.000 claims description 2
- 239000011241 protective layer Substances 0.000 claims 1
- 239000004411 aluminium Substances 0.000 abstract 1
- 239000010408 film Substances 0.000 description 17
- 239000000463 material Substances 0.000 description 14
- 229920002635 polyurethane Polymers 0.000 description 14
- 239000004814 polyurethane Substances 0.000 description 14
- 239000004743 Polypropylene Substances 0.000 description 10
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 9
- 239000012939 laminating adhesive Substances 0.000 description 9
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 8
- 230000009172 bursting Effects 0.000 description 7
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 6
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 5
- 239000001301 oxygen Substances 0.000 description 5
- 229910052760 oxygen Inorganic materials 0.000 description 5
- 230000035699 permeability Effects 0.000 description 5
- 238000000576 coating method Methods 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 238000010030 laminating Methods 0.000 description 4
- 239000000565 sealant Substances 0.000 description 4
- 238000010521 absorption reaction Methods 0.000 description 3
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 3
- 238000013124 brewing process Methods 0.000 description 3
- UFRKOOWSQGXVKV-UHFFFAOYSA-N ethene;ethenol Chemical compound C=C.OC=C UFRKOOWSQGXVKV-UHFFFAOYSA-N 0.000 description 3
- 239000004715 ethylene vinyl alcohol Substances 0.000 description 3
- 239000011888 foil Substances 0.000 description 3
- TWNQGVIAIRXVLR-UHFFFAOYSA-N oxo(oxoalumanyloxy)alumane Chemical compound O=[Al]O[Al]=O TWNQGVIAIRXVLR-UHFFFAOYSA-N 0.000 description 3
- 229920001155 polypropylene Polymers 0.000 description 3
- 239000000377 silicon dioxide Substances 0.000 description 3
- 229910052814 silicon oxide Inorganic materials 0.000 description 3
- 239000013039 cover film Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000012173 sealing wax Substances 0.000 description 2
- 239000004372 Polyvinyl alcohol Substances 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 235000013305 food Nutrition 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000004922 lacquer Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 239000002356 single layer Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004901 spalling Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229920001169 thermoplastic Polymers 0.000 description 1
- 239000004416 thermosoftening plastic Substances 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
- 230000003245 working effect Effects 0.000 description 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
- B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
- B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
- B65D85/8043—Packages adapted to allow liquid to pass through the contents
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- 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
- B65D17/00—Rigid or semi-rigid containers specially constructed to be opened by cutting or piercing, or by tearing of frangible members or portions
-
- 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
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/08—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin
- B32B15/09—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of synthetic resin comprising polyesters
-
- 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
- B32B27/00—Layered products comprising a layer of synthetic resin
- B32B27/36—Layered products comprising a layer of synthetic resin comprising polyesters
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- B65D81/00—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents
- B65D81/34—Containers, packaging elements, or packages, for contents presenting particular transport or storage problems, or adapted to be used for non-packaging purposes after removal of contents for packaging foodstuffs or other articles intended to be cooked or heated within the package
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
- B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
- 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
Definitions
- the invention relates to a capsule sealed with a board for constituents of beverages, in particular coffee or tea, which remains tight even at pressures up to 15 bar, according to the preamble of claim 1.
- Capsules for the preparation of beverages are known, for example, from EP 2 100 824, wherein in this document pressures of 10 bar are specifically mentioned.
- the capsule is largely used in a cavity of the drinks vending machine with surface contact, when closing the mold, the circuit board, which closes the capsule, pierced by one or more hollow needles and through this will be in the episode steam and / or introduced water under high pressure, upon reaching about 6 bar a designated vulnerability at the bottom of the capsule springs open and there flows the finished beverage from the capsule.
- the sealed capsule must have high aroma resistance and low permeability to water vapor and oxygen in order to maintain the high quality of the coffee powder during storage in the capsule for long periods of up to 24 hours To obtain months (shelf-life).
- Optimal values are less than 1 cm 3 / m 2 bar 24 hours (OTR) and 1 g / m 2 bar 24 hours (WVTR).
- the coffee capsule is made of PBT (polybutylene terephthalate), any coatings such as printing layer (s), etc. are not observed and the board is, as intended from the inside (seal page) seen from a layer of PBT, coextruded on a layer of PET (polyethylene terephthalate) and a barrier layer, which connects either directly to the PET or is provided for at least one intermediate layer, and optionally further outer layers, which may be printed or otherwise configured, for example.
- PBT polybutylene terephthalate
- PET polyethylene terephthalate
- barrier layer which connects either directly to the PET or is provided for at least one intermediate layer, and optionally further outer layers, which may be printed or otherwise configured, for example.
- the water-absorption capacity of the PBT resin is only 0.08% by weight, in contrast to the ethylene-vinyl alcohol copolymer resins, which can absorb up to more than 10%.
- relevant publications and product descriptions for example by the company. Kuraray.
- the PBT-PBT seal between circuit board and capsule can be carried out at a sealing temperature between 240 ° C and 270 ° C in a time of 0.5 seconds and 2.35 bar sealing pressure, despite this short sealing time a sealing force of at least 20 N / 15 mm, measured under standard conditions, which, with the usual dimensions of the capsule, ensures sufficient compressive strength (actually bursting strength).
- a sealing temperature between 240 ° C and 270 ° C in a time of 0.5 seconds and 2.35 bar sealing pressure, despite this short sealing time a sealing force of at least 20 N / 15 mm, measured under standard conditions, which, with the usual dimensions of the capsule, ensures sufficient compressive strength (actually bursting strength).
- Example 2 shows the seal strength of the transparent cover material from Example 2 against PBT film above the sealing temperature in ° C
- Fig. 3 shows the seal strength of a standard cover material of Comparative Example 3 against PBT film over the sealing temperature in ° C and
- Example 4 shows the seal strength of two cover materials against PP film over the sealing temperature in ° C, above (green) Example 4b; below (blue) Example 4a
- Base layer shows or show.
- the tested film had, from the inside to the outside, a PBT-sealing layer with a thickness of 3 ⁇ , coextruded with a PET core layer with a thickness of 26 ⁇ m and a PET laminating layer with a thickness of 1 ⁇ m.
- the laminating cover layer PET additionally contains antiblocking agents and lubricants for adjusting the sliding friction (film surface outside against film surface inside, ie here PET cover layer against PBT sealing layer) and winding quality of the roll, the laminating film structure here is a total of a 3-layer coextruded complex PBT (sealing layer) PET (core layer) PET (cover layer) with biaxial orientation.
- An aluminum foil or an aluminum strip with a thickness of 15 ⁇ m was laminated onto this PET laminating layer by means of a conventional laminating adhesive in order to provide an absolute barrier layer; overlying layers such as printing original, printing layer and pressure-protective lacquer are not mentioned here and below.
- PBT partially crystalline, thermoplastic, saturated polyester based polybutylene terephthalate
- a sealant is used against top film barrier laminate with PBT-based or PBT-containing sealant layer (see examples below).
- PBT-based, sealed capsule blanks have a burst strength of up to 15 bar and a particularly high level of aroma resistance (barrier).
- the PBT capsules themselves are molded by injection molding into a capsule form.
- PBT materials are generally used for high-quality, highly stressed engineering parts in many industrial sectors. Other special features of these materials are high rigidity and strength, a very good dimensional stability even in the heat, low water absorption and good resistance to many chemicals. For the application in coffee capsules, it is particularly suitable, since PBT already offers a very good flavoring ability as a single layer and has no restriction on the use in direct food contact.
- Non-permeable design enumeration from the inside (sealing side) to the outside.
- the layers 1 to 3 represent the base film mentioned below.
- FIG. 1 describes the sealing curve of the cover material described above against a PBT film.
- Sealing time 0.5 s; Sealant: PBT film 270 ⁇
- Bursting strength 15bar Capsule internal pressure during the brewing process in the coffee machine is achieved without causing leaks or spalling of the coversheet
- the alumina or silica layer provides a barrier to water vapor / oxygen and flavoring that is transparent.
- This coating can also be on the PET topcoat or on the other side between the 2K polyurethane and PET overcoat.
- barrier effect against oxygen may optionally be additionally applied to further increase the barrier effect against oxygen and additional barrier coatings, preferably based on polyvinyl alcohol on the alumina or silica layer.
- the print (ink) can also be applied on the surface between PET and overcoat 2K polyurethane.
- Fig. 3 the sealing curve of the aforementioned lid material is shown against a PBT capsule (see Appendix).
- Seal Partner PBT Film 270 ⁇ Bursting Strength: 8bar Capsule internal pressure during the brewing process in the coffee machine is achieved without creating leaks, i. as soon as higher capsule pressures are applied, leaks will occur or the cover sheet will flake off the capsule. This means that the seal seam strength of this design is not sufficient to achieve more than 10 bar bursting strength!
- the water vapor permeability was measured according to standard JESZ0208.
- the Sauer material permeability was measured according to ASTM D3985 and the other gas permeabilities were measured according to ASTM D1434.
- Layer 5 optionally 1 - 4g / m 2 optionally printing ink plus printing primer (bonding agent)
- the theoretical minimum possible total layer thickness of layer 1 + 2 + 3 is 12 ⁇ .
- the invention is not limited to the variants described, but can be varied variously within the scope of the claims.
- the layers or layers which are not necessary for achieving the bursting strength can be replaced by others, provided in a different thickness and arrangement, or omitted.
- the capsule can, especially on the outside, be provided with coatings, in particular visually appealing or information-conveying, without this changing anything about the term "existing".
- substantially means a deviation of up to 10% of the stated value, if it is physically possible, both downwards and upwards, otherwise only in the sensible direction, for degrees (angle and temperature) are meant + 10 °.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- Food Science & Technology (AREA)
- Laminated Bodies (AREA)
Abstract
Description
Claims
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
ATA50251/2017A AT519264B1 (de) | 2017-03-30 | 2017-03-30 | Mit einer Platine versiegelte Kapsel |
PCT/EP2018/055912 WO2018177723A1 (de) | 2017-03-30 | 2018-03-09 | Kapsel mit Platine für Getränkebestandteile |
Publications (1)
Publication Number | Publication Date |
---|---|
EP3601102A1 true EP3601102A1 (de) | 2020-02-05 |
Family
ID=61763928
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP18712813.7A Withdrawn EP3601102A1 (de) | 2017-03-30 | 2018-03-09 | Kapsel mit platine für getränkebestandteile |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3601102A1 (de) |
AT (1) | AT519264B1 (de) |
WO (1) | WO2018177723A1 (de) |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2005042373A1 (ja) * | 2003-11-04 | 2005-05-12 | Toyo Seikan Kaisha, Ltd. | ポリエステル容器及びその製造方法、並びにポリエステル容器の密封方法 |
JP5167846B2 (ja) * | 2008-02-07 | 2013-03-21 | Jfeスチール株式会社 | 2ピース缶体用ラミネート金属板および2ピースラミネート缶体 |
ITMI20111847A1 (it) * | 2011-10-10 | 2013-04-11 | Goglio Spa | Cartuccia per caffe' e prodotti solubili in genere |
EP2878616A4 (de) * | 2012-07-24 | 2016-03-30 | Unitika Ltd | Polyesterfolie zum kaltformen und herstellungsverfahren dafür |
JP2016501561A (ja) * | 2012-10-29 | 2016-01-21 | シーエステック ジーエムビーエイチ | コーヒー、茶などの抽出材料を受容するためのカプセル |
WO2014161653A1 (en) * | 2013-04-03 | 2014-10-09 | Cedar Advanced Technology Group Ltd. | Container for a food, beverage or pharmaceutical product an method of preparation thereof |
JP2016521158A (ja) * | 2013-04-11 | 2016-07-21 | ネステク ソシエテ アノニム | 食品調製用カプセル |
-
2017
- 2017-03-30 AT ATA50251/2017A patent/AT519264B1/de not_active IP Right Cessation
-
2018
- 2018-03-09 EP EP18712813.7A patent/EP3601102A1/de not_active Withdrawn
- 2018-03-09 WO PCT/EP2018/055912 patent/WO2018177723A1/de unknown
Also Published As
Publication number | Publication date |
---|---|
WO2018177723A1 (de) | 2018-10-04 |
AT519264A4 (de) | 2018-05-15 |
AT519264B1 (de) | 2018-05-15 |
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