EP1352840B1 - Versiegelte Packung für flüssige Nahrungsmittel - Google Patents

Versiegelte Packung für flüssige Nahrungsmittel Download PDF

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Publication number
EP1352840B1
EP1352840B1 EP02425226A EP02425226A EP1352840B1 EP 1352840 B1 EP1352840 B1 EP 1352840B1 EP 02425226 A EP02425226 A EP 02425226A EP 02425226 A EP02425226 A EP 02425226A EP 1352840 B1 EP1352840 B1 EP 1352840B1
Authority
EP
European Patent Office
Prior art keywords
package
frame
cap
removable
hole
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.)
Revoked
Application number
EP02425226A
Other languages
English (en)
French (fr)
Other versions
EP1352840A1 (de
Inventor
Cristiano Casale
Rickard Norenstam
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Tetra Laval Holdings and Finance SA
Original Assignee
Tetra Laval Holdings and Finance SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Family has litigation
First worldwide family litigation filed litigation Critical https://patents.darts-ip.com/?family=28051903&utm_source=google_patent&utm_medium=platform_link&utm_campaign=public_patent_search&patent=EP1352840(B1) "Global patent litigation dataset” by Darts-ip is licensed under a Creative Commons Attribution 4.0 International License.
Application filed by Tetra Laval Holdings and Finance SA filed Critical Tetra Laval Holdings and Finance SA
Priority to ES02425226T priority Critical patent/ES2315344T3/es
Priority to DE60229832T priority patent/DE60229832D1/de
Priority to AT02425226T priority patent/ATE414019T1/de
Priority to EP02425226A priority patent/EP1352840B1/de
Publication of EP1352840A1 publication Critical patent/EP1352840A1/de
Application granted granted Critical
Publication of EP1352840B1 publication Critical patent/EP1352840B1/de
Anticipated expiration legal-status Critical
Revoked legal-status Critical Current

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65D—CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS, e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES, DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; PACKAGING ELEMENTS; PACKAGES
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container
    • B65D5/747—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall
    • B65D5/749—Spouts formed separately from the container with means for piercing or cutting the container wall or a membrane connected to said wall a major part of the container wall or membrane being removed from the container after the opening
    • 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
    • B65D5/00—Rigid or semi-rigid containers of polygonal cross-section, e.g. boxes, cartons or trays, formed by folding or erecting one or more blanks made of paper
    • B65D5/42—Details of containers or of foldable or erectable container blanks
    • B65D5/72—Contents-dispensing means
    • B65D5/74—Spouts
    • B65D5/746—Spouts formed separately from the container

Definitions

  • the present invention relates to a sealed package for pourable food products.
  • pourable food products such as fruit juice, UHT (ultra-high-temperature treated) milk, wine, tomato sauce, etc.
  • UHT ultra-high-temperature treated milk
  • wine tomato sauce
  • etc. are sold in packages made of sterilized packaging material.
  • a typical example of such a package is the parallelepiped-shaped package for liquid or pourable food products known as Tetra Brik Aseptic (registered trademark), which is produced by folding and sealing a web of laminated packaging material.
  • the packaging material has a multilayer structure comprising a base layer, which imparts strength and rigidity to the package, and which may be defined by a layer of fibrous material, e.g. paper, or mineral-filled polypropylene material.
  • the base layer is covered on both sides with layers of thermoplastic material, e.g. polyethylene films; and, in the case of aseptic packages for long-storage products, such as UHT milk, the packaging material comprises a layer of oxygen-barrier material, e.g. aluminium foil, which is superimposed on a layer of thermoplastic material, and is in turn covered with another layer of thermoplastic material eventually forming the inner face of the package contacting the food product.
  • such packages are produced on fully automatic packaging machines, on which a continuous tube is formed from the web-fed packaging material.
  • the web of packaging material is sterilized on the packaging machine, e.g. by applying a chemical sterilizing agent, such as a hydrogen peroxide solution, which, after sterilization, is removed, e.g. vaporized by heating, from the surfaces of the packaging material; and the web of packaging material so sterilized is maintained in a closed sterile environment, and is folded and sealed longitudinally to form a vertical tube.
  • a chemical sterilizing agent such as a hydrogen peroxide solution
  • the tube is filled with the sterilized or sterile-processed food product, and is sealed and cut along equally spaced cross sections to form pillow packs, which are then folded mechanically to form the finished, e.g. substantially parallelepiped-shaped packages.
  • the packaging material may be cut into blanks, which are folded on forming spindles to form the packages, which are then filled with the food product and sealed.
  • An example of this type of package is the "gable-top" package commonly known by the trade name Tetra Rex (registered trademark).
  • Such packages are normally fitted with closable opening devices to protect the food product in the package from contact by external agents, and to enable withdrawal of the product.
  • opening devices comprise a frame defining an opening and applied about a removable or pierceable portion of the top wall of the package; and a cap hinged or screwed to the frame and which can be removed to open the package.
  • other types of opening devices e.g. sliding types, are also used.
  • the removable portion of the package may be defined, for example, by a so-called "prelaminated” hole, i.e. a hole formed in the base layer of the packaging material before the base layer is covered with the thermoplastic layers and with the barrier layer, which closes the hole to ensure aseptic airtight sealing, while at the same time being easily pierced.
  • prelaminated hole i.e. a hole formed in the base layer of the packaging material before the base layer is covered with the thermoplastic layers and with the barrier layer, which closes the hole to ensure aseptic airtight sealing, while at the same time being easily pierced.
  • the cap of the opening device is applied, preferably heat sealed, directly to the thermoplastic material covering the hole in the base layer of the packaging material, so that, as the cap is removed from the frame, the removable portion remains attached to the cap and is detached from the rest of the top wall of the package.
  • the package is unsealed in one single operation, by the user simply detaching the cap from the frame to simultaneously detach the removable portion.
  • the above solution leaves room for further improvement, particularly as regards unsealing of the package. That is, since the packaging material is laminated better inwards of than about the edge of the removable portion, the thermoplastic material defining the edge area tends to fray when removing the cap from the frame, thus preventing the food product from being poured smoothly from the package, by the frayed plastic remains of the removable portion projecting through the exposed hole in the packaging material once the cap is removed from the frame.
  • the inner face of the package is normally made of thermoplastic materials with particular density characteristics, such as those commonly known commercially as “metallocene” and "LK25", which, while ensuring sound packages, even in the presence of aggressive food products, make the package particularly difficult to unseal using the opening devices described above.
  • EP 755 862 discloses a package with a Flip-open spout in accordance with the preamble of appended claim 1.
  • Number 1 in Figure 1 indicates as a whole an aseptic sealed package for pourable food products, e.g. a parallelepiped-shaped package known as Tetra Brik Aseptic (registered trademark), which is made of sheet packaging material 1a as described in detail above, and is fitted with a closable opening device 2 made of plastic material and applied to a top wall 3 of package 1.
  • Tetra Brik Aseptic registered trademark
  • Packaging material 1a from which package 1 is made, has a multilayer structure ( Figure 3 ), and comprises a base layer 5 of fibrous material, e.g. paper, or of mineral-filled polypropylene, covered, on the side defining the outer face of package 1, with a film 6 of thermoplastic material - in the example shown, polyethylene.
  • the side defining the inner face of package 1 has a layer 7 of oxygen-barrier material, e.g. aluminium foil, which is covered, on the side facing layer 5, with a film 8 of thermoplastic material, e.g. polyethylene, and, on the opposite side, with an adhesive layer 9 and a further film 10 of thermoplastic material, e.g. metallocene, i.e. very low-density polyethylene (LLDPE), or a material commonly known commercially as "LK25", i.e. low-density polyethylene (LDPE).
  • Film 10 therefore defines the inner face of package 1.
  • Opening device 2 is applied to a removable portion 11 - in the example shown, circular and of axis A - of top wall 3 of package 1, i.e. to a portion detachable from the rest of package 1 so the food product can be poured out.
  • removable portion 11 is obtained by forming a hole 12 of axis A through layer 5 of packaging material 1a, and by laminating layer 5 with thermoplastic films 6, 8, 10 and barrier and adhesive layers 7, 9 to cover hole 12.
  • removable portion 11 may also comprise a layer of stiffening material defined, for example, by the same material as layer 5.
  • opening device 2 comprises an annular, externally threaded frame 15 fixed to wall 3 of package 1 at removable portion 11, and defining a circular opening 16 of axis A, through which the food product is poured; and a cap 17, which is formed separately from frame 15, is screwed to frame 15 into a closed position closing opening 16 ( Figure 2 ), and adheres directly to removable portion 11.
  • Package 1 is unsealed by unscrewing cap 17 from frame 15 ( Figure 4 ), so that removable portion 11 remains attached to cap 17 and is detached from the rest of wall 3 of package 1 to open hole 12. Once unsealed, cap 17 is movable between said closed position and an open position ( Figure 4 ) in which it is detached from frame 15.
  • frame 15 substantially comprises an annular flange 20, of axis A, heat sealed to wall 3 of package 1 and internally defining opening 16; and an externally threaded, cylindrical, annular portion 21 projecting perpendicularly and coaxially from the opposite side of flange 20 to that fixed to wall 3.
  • Cap 17 comprises, integrally, a closing portion 22 for closing opening 16; and an internally threaded, cylindrical, annular portion 23 projecting from a circular outer peripheral edge 24 of portion 22, and which screws onto annular portion 21 of frame 15.
  • Cap 17 also comprises, integrally, a cylindrical, annular anchoring portion 25, which projects from closing portion 22, is located radially inwards with respect to annular portion 23, engages pour opening 16 of frame 15, and is fixed, e.g. heat sealed, to removable portion 11. More specifically, anchoring portion 25 is defined by two concentric, annular, closely spaced projecting elements.
  • Anchoring portion 25 defines, with closing portion 22, an inner cavity 26 open towards removable portion 11 of wall 3, and, with annular portion 23 and peripheral edge 24 of closing portion 22, an annular seat 27 for receiving annular portion 21 of frame 15.
  • frame 15 also comprising an edge portion 28, which projects from flange 20 in the opposite direction to annular portion 21, defines opening 16 so as to be located radially outwards of anchoring portion 25 of cap 17, and is fixed, e.g. heat sealed, at the end to a peripheral edge area 11a of removable portion 11.
  • edge portion 28 covers the edge of hole 12 in layer 5 of packaging material 1a, and adheres at its free end to removable portion 11.
  • Package 1 is unsealed by rotating cap 17 with respect to frame 15, so as to unscrew the cap from the frame. As it is rotated, cap 17 retains the part of removable portion 11 sealed to anchoring portion 25, thus detaching it from the rest of wall 3 to open hole 12. More specifically, by virtue of projecting edge 28 of frame 15 being fixed to peripheral edge area 11a of removable portion 11, anchoring portion 25 of cap 17 is fixed to a better laminated, more radially inner area 11b of removable portion 11, so that unsealing of package 1 is greatly improved as compared with known packages by ensuring clean removal of the packaging material 1a through pour opening 16.
  • Projecting edge 28 of frame 15 defines a rigid contrasting element, against which the material defining removable portion 11 is torn, thus simplifying unsealing of package 1, even when using materials which are particularly difficult to tear, such as metallocene and LK25.
  • opening device 2 may be applied to package 1 using other fastening systems, e.g. adhesive substances, and may be of a different type, e.g. comprising a cap hinged to or sliding with respect to the frame.
  • fastening systems e.g. adhesive substances
  • opening device 2 may be applied to package 1 using other fastening systems, e.g. adhesive substances, and may be of a different type, e.g. comprising a cap hinged to or sliding with respect to the frame.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Closures For Containers (AREA)
  • Laminated Bodies (AREA)

Claims (4)

  1. Versiegelte Verpackung (1) für schütt- bzw. fließfähige Nahrungsmittelprodukte, hergestellt aus einem Verpackungsmaterial (1a), das eine mehrschichtige Struktur aufweist und eine faserige Basisschicht (5), die mit Schichten aus thermoplastischem Material (6, 8, 10) laminiert ist, umfasst; wobei die Verpackung (1) ein durch die faserige Basisschicht hindurch gebildetes Loch (12), wenigstens einen entfernbaren, das Loch (12) bedeckenden Abschnitt (11), sowie eine verschließbare Öffnungsvorrichtung (2) aufweist, die wiederum einen Rahmen (15) umfasst, der eine Ausgießöffnung (16) definiert und einen ersten Verbindungsabschnitt (20) aufweist, der an der Verpackung (1) um den beweglichen Abschnitt (11) und das Loch (12) befestigt ist, sowie einen an dem Rahmen (15) angeordneten entfernbaren Verschluss (deckel) bzw. Kappe (17), um die Ausgießöffnung (16) zu schließen und einen Befestigungs- bzw. Verankerungsabschnitt (25) aufweisend, der sich durch die Öffnung (16) und das Loch (12) erstreckt und direkt an dem entfernbaren Abschnitt (11) befestigt ist; wobei der Rahmen (15) einen zweiten Verbindungsabschnitt (28) umfasst, der um den Verankerungsabschnitt (25) des Verschlusses (17) verläuft und senkrecht zu einer Umfangsfläche (11a) des entfernbaren Abschnitts (11) befestigt ist, dadurch gekennzeichnet, dass der entfernbare Abschnitt (11) laminierte thermoplastische und Sperrschichten (6, 8, 10, 7) umfasst, die das Loch (12) in der faserigen Basisschicht (5) bedecken; dass der Rahmen (15) einen mit einem Gewinde versehenen, zylindrischen, ringförmigen Abschnitt (21) umfasst, der senkrecht vom ersten Verbindungsabschnitt (20) vorsteht und koaxial zur Ausgießöffnung (16) und dem zweiten Verbindungsabschnitt (28) ist; und dass der Verschluss (17) einen ringförmigen Abschnitt (23) aufweist, der von einer kreisförmigen äußeren Umfangskante (24) eines Verschlussabschnitts (22) vorsteht, der auf den mit einem Gewinde versehenen ringförmigen Abschnitt (21) des Rahmens (15) geschraubt ist.
  2. Verpackung nach Anspruch 1, dadurch gekennzeichnet, dass der zweite Verbindungsabschnitt (28) des Rahmens (15) die Kante des Lochs (12) in der Basisschicht (5) bedeckt.
  3. Verpackung nach Anspruch 1 oder 2, dadurch gekennzeichnet, dass der zweite Verbindungsabschnitt (28) des Rahmens (15) rahmenförmig ist, wenigstens teilweise die Ausgießöffnung (16) definiert, von dem ersten Verbindungsabschnitt (10) vorsteht und am Ende an der Umfangsfläche (11a) des entfernbaren Abschnitts (11) befestigt ist.
  4. Verpackung nach einem der vorhergehenden Ansprüche, dadurch gekennzeichnet, dass der Rahmen (15) und der Verschluss (17) an die Verpackung (1) heißgesiegelt sind.
EP02425226A 2002-04-12 2002-04-12 Versiegelte Packung für flüssige Nahrungsmittel Revoked EP1352840B1 (de)

Priority Applications (4)

Application Number Priority Date Filing Date Title
ES02425226T ES2315344T3 (es) 2002-04-12 2002-04-12 Envase obturable para productos alimenticios que se pueden verter.
DE60229832T DE60229832D1 (de) 2002-04-12 2002-04-12 Versiegelte Packung für flüssige Nahrungsmittel
AT02425226T ATE414019T1 (de) 2002-04-12 2002-04-12 Versiegelte packung für flüssige nahrungsmittel
EP02425226A EP1352840B1 (de) 2002-04-12 2002-04-12 Versiegelte Packung für flüssige Nahrungsmittel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425226A EP1352840B1 (de) 2002-04-12 2002-04-12 Versiegelte Packung für flüssige Nahrungsmittel

Publications (2)

Publication Number Publication Date
EP1352840A1 EP1352840A1 (de) 2003-10-15
EP1352840B1 true EP1352840B1 (de) 2008-11-12

Family

ID=28051903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425226A Revoked EP1352840B1 (de) 2002-04-12 2002-04-12 Versiegelte Packung für flüssige Nahrungsmittel

Country Status (4)

Country Link
EP (1) EP1352840B1 (de)
AT (1) ATE414019T1 (de)
DE (1) DE60229832D1 (de)
ES (1) ES2315344T3 (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886479A1 (de) * 2013-12-23 2015-06-24 Tetra Laval Holdings & Finance S.A. Öffnungsvorrichtung für einen Behälter und Verfahren zur Herstellung einer solchen Öffnungsvorrichtung

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ES2335000T5 (es) 2004-08-20 2017-07-27 Tetra Laval Holdings & Finance S.A. Dispositivo de apertura para un envase sellado que contiene un producto alimenticio vertible
JP4885576B2 (ja) * 2006-03-09 2012-02-29 日本クラウンコルク株式会社 複合容器蓋
PL2008787T3 (pl) * 2007-06-28 2012-08-31 Tetra Laval Holdings & Finance Sposób formowania wtryskowego zespołu otwierającego na materiale arkuszowym do pakowania produktów spożywczych nadających się do przelewania oraz materiał opakowaniowy i opakowanie otrzymane tym sposobem
JP5390370B2 (ja) * 2009-12-22 2014-01-15 日本クロージャー株式会社 合成樹脂製注出口栓
EP2361743B1 (de) * 2010-02-23 2014-05-07 Tetra Laval Holdings & Finance S.A. Vorrichtung und Verfahren zum Spritzgießen von Öffnungsvorrichtungen auf bahnförmiges Verpackungsmaterial zur Verpackung ausgießbarer Lebensmittelprodukte
JP6094128B2 (ja) * 2012-10-02 2017-03-15 凸版印刷株式会社 スパウトとこのスパウトを取り付けたスタンディングパウチ
DE202013012702U1 (de) * 2013-05-24 2018-09-10 Georg Menshen Gmbh & Co. Kg Einschweißteil mit Sperrschicht
EP4124584A1 (de) * 2021-07-26 2023-02-01 Tetra Laval Holdings & Finance S.A. Öffnungsvorrichtung für eine verpackung und verpackung mit einer öffnungsvorrichtung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5125886A (en) * 1989-12-15 1992-06-30 The Procter & Gamble Company One piece pouring spout sealed to innermost and outermost surfaces of moisture impervious carton
US5348182A (en) * 1991-03-05 1994-09-20 Portola Packaging, Inc. Means for attaching fitment and method of applying fitment
DE69619173T2 (de) * 1995-07-27 2002-08-14 Jujo Paper Co Ltd Abgedichteter Papierbehälter mit Öffnungsvorrichtung
EP1081054B1 (de) * 1999-08-27 2007-10-24 Tetra Laval Holdings & Finance SA Verfahren zum Anbringen einer abschliessbaren Öffnung an einer Packung für ausgiessbare Nahrungsmittel

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2886479A1 (de) * 2013-12-23 2015-06-24 Tetra Laval Holdings & Finance S.A. Öffnungsvorrichtung für einen Behälter und Verfahren zur Herstellung einer solchen Öffnungsvorrichtung
WO2015096944A1 (en) * 2013-12-23 2015-07-02 Tetra Laval Holdings & Finance S.A. An opening device for a container and a method for producing such opening device
US10040597B2 (en) 2013-12-23 2018-08-07 Tetra Laval Holdings & Finance S.A. Opening device for a container and a method for producing such opening device
US10625901B2 (en) 2013-12-23 2020-04-21 Tetra Laval Holdings & Finance S.A. Opening device for a container and a method for producing such opening device

Also Published As

Publication number Publication date
ATE414019T1 (de) 2008-11-15
DE60229832D1 (de) 2008-12-24
ES2315344T3 (es) 2009-04-01
EP1352840A1 (de) 2003-10-15

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