EP1352840A1 - Emballage hermétique pour produits alimentaires fluides et sa méthode de fabrication - Google Patents

Emballage hermétique pour produits alimentaires fluides et sa méthode de fabrication Download PDF

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Publication number
EP1352840A1
EP1352840A1 EP02425226A EP02425226A EP1352840A1 EP 1352840 A1 EP1352840 A1 EP 1352840A1 EP 02425226 A EP02425226 A EP 02425226A EP 02425226 A EP02425226 A EP 02425226A EP 1352840 A1 EP1352840 A1 EP 1352840A1
Authority
EP
European Patent Office
Prior art keywords
frame
package
cap
removable
removable portion
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.)
Granted
Application number
EP02425226A
Other languages
German (de)
English (en)
Other versions
EP1352840B1 (fr
Inventor
Cristiano Casale
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(A1) "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 EP02425226A priority Critical patent/EP1352840B1/fr
Priority to DE60229832T priority patent/DE60229832D1/de
Priority to AT02425226T priority patent/ATE414019T1/de
Priority to ES02425226T priority patent/ES2315344T3/es
Publication of EP1352840A1 publication Critical patent/EP1352840A1/fr
Application granted granted Critical
Publication of EP1352840B1 publication Critical patent/EP1352840B1/fr
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, and to the relative production method.
  • 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.
  • a sealed package for pourable food products having at least one removable portion, and a closable opening device in turn comprising a frame defining a pour opening and having a first connecting portion fixed to said package about said removable portion, and a removable cap fitted to said frame to close said pour opening and having an anchoring portion extending through said pour opening and fixed directly to said removable portion; characterized in that said frame comprises a second connecting portion extending about said anchoring portion of said cap and fixed to a peripheral area of said removable portion.
  • the present invention also relates to a method of producing a sealed package of a pourable food product from sheet packaging material having at least one removable portion; said method comprising the steps of:
  • 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)
EP02425226A 2002-04-12 2002-04-12 Emballage hermétique pour produits alimentaires fluides Revoked EP1352840B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
EP02425226A EP1352840B1 (fr) 2002-04-12 2002-04-12 Emballage hermétique pour produits alimentaires fluides
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
ES02425226T ES2315344T3 (es) 2002-04-12 2002-04-12 Envase obturable para productos alimenticios que se pueden verter.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP02425226A EP1352840B1 (fr) 2002-04-12 2002-04-12 Emballage hermétique pour produits alimentaires fluides

Publications (2)

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

Family

ID=28051903

Family Applications (1)

Application Number Title Priority Date Filing Date
EP02425226A Revoked EP1352840B1 (fr) 2002-04-12 2002-04-12 Emballage hermétique pour produits alimentaires fluides

Country Status (4)

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

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007238140A (ja) * 2006-03-09 2007-09-20 Japan Crown Cork Co Ltd 複合容器蓋
JP2008510661A (ja) * 2004-08-20 2008-04-10 テトラ ラバル ホールデイングス エ フイナンス ソシエテ アノニム 注出可能な食品製品を入れる密封包装容器のための開口装置
EP2008787A1 (fr) 2007-06-28 2008-12-31 Tetra Laval Holdings & Finance SA Procédé de moulage par injection de dispositifs d'ouverture sur un matériau de feuille pour le conditionnement de produits alimentaires versables et paquet pouvant être obtenu selon ce procédé
EP2495185A1 (fr) * 2009-12-22 2012-09-05 Japan Crown Cork Co., Ltd Capuchon d'ouverture en resine synthetique
CN102762353A (zh) * 2010-02-23 2012-10-31 利乐拉瓦尔集团及财务有限公司 在包装可倾倒食品的片材包装材料上喷射模制开启装置的设备和方法
JP2014073848A (ja) * 2012-10-02 2014-04-24 Toppan Printing Co Ltd 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
WO2014187520A1 (fr) * 2013-05-24 2014-11-27 Georg Menshen Gmbh & Co. Kg Pièce à souder pourvue d'une couche de barrage
CN105658531A (zh) * 2013-12-23 2016-06-08 利乐拉瓦尔集团及财务有限公司 用于容器的打开装置和用于生产这样的打开装置的方法
EP4124584A1 (fr) * 2021-07-26 2023-02-01 Tetra Laval Holdings & Finance S.A. Dispositif d'ouverture pour un emballage et emballage pourvu d'un dispositif d'ouverture

Citations (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
EP0755862A2 (fr) * 1995-07-27 1997-01-29 Nippon Paper Industries Co., Ltd. Récipient en papier étanche avec dispositif d'ouverture
EP1081054A1 (fr) * 1999-08-27 2001-03-07 Tetra Laval Holdings & Finance SA Procédé de mise en place d'une dispositif d'ouverture refermable sur une conteneur pour des produits alimentaires versable et conteneur avec ce dispositif

Patent Citations (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
EP0755862A2 (fr) * 1995-07-27 1997-01-29 Nippon Paper Industries Co., Ltd. Récipient en papier étanche avec dispositif d'ouverture
EP1081054A1 (fr) * 1999-08-27 2001-03-07 Tetra Laval Holdings & Finance SA Procédé de mise en place d'une dispositif d'ouverture refermable sur une conteneur pour des produits alimentaires versable et conteneur avec ce dispositif

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7878353B2 (en) 2004-08-20 2011-02-01 Tetra Laval Holdings & Finance Sa Opening device for a sealed package containing a pourable food product
JP2008510661A (ja) * 2004-08-20 2008-04-10 テトラ ラバル ホールデイングス エ フイナンス ソシエテ アノニム 注出可能な食品製品を入れる密封包装容器のための開口装置
KR101385918B1 (ko) * 2004-08-20 2014-04-29 테트라 라발 홀딩스 앤드 피낭스 소시에떼아노님 쏟을 수 있는 식품을 포함하는 밀봉 포장체용 개구 장치
CN101005992B (zh) * 2004-08-20 2010-05-26 利乐拉瓦尔集团及财务有限公司 用于容纳可倾倒的食物制品的密封包装件的开口装置
JP2007238140A (ja) * 2006-03-09 2007-09-20 Japan Crown Cork Co Ltd 複合容器蓋
WO2009000927A1 (fr) * 2007-06-28 2008-12-31 Tetra Laval Holdings & Finance S.A. Procédé de moulage par injection de dispositifs d'ouverture sur un matériau en feuille pour le conditionnement de produits alimentaires versables, matériau de conditionnement et conditionnement obtenu par ledit procédé
CN101687352B (zh) * 2007-06-28 2014-07-23 利乐拉瓦尔集团及财务有限公司 在用于包装可倾倒的食品的片材上注塑开启装置的方法以及藉此获得的包装材料和包装
US9868587B2 (en) 2007-06-28 2018-01-16 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products, and packaging material and package obtained thereby
RU2471623C2 (ru) * 2007-06-28 2013-01-10 Тетра Лаваль Холдингз Энд Файнэнс С.А. Способ инжекционного формования открывающих устройств на листовом материале для упаковывания текучих пищевых продуктов, а также упаковочный материал и упаковка, получаемые таким способом
US8454872B2 (en) 2007-06-28 2013-06-04 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products
US20130273214A1 (en) * 2007-06-28 2013-10-17 Tetra Laval Holdings & Finance S.A. Method of injection molding opening devices on sheet material for packaging pourable food products, and packaging material and package obtained thereby
KR101491191B1 (ko) * 2007-06-28 2015-02-06 테트라 라발 홀딩스 앤드 피낭스 소시에떼아노님 유동성 식품을 포장하기 위하여 시트 재료에 개봉 장치를 사출 성형하는 방법, 및 포장 재료 및 이에 의해서 획득된 패키지
EP2008787A1 (fr) 2007-06-28 2008-12-31 Tetra Laval Holdings & Finance SA Procédé de moulage par injection de dispositifs d'ouverture sur un matériau de feuille pour le conditionnement de produits alimentaires versables et paquet pouvant être obtenu selon ce procédé
EP2495185A1 (fr) * 2009-12-22 2012-09-05 Japan Crown Cork Co., Ltd Capuchon d'ouverture en resine synthetique
EP2495185A4 (fr) * 2009-12-22 2014-11-05 Crown Cork Japan Capuchon d'ouverture en resine synthetique
CN102762353B (zh) * 2010-02-23 2014-11-05 利乐拉瓦尔集团及财务有限公司 在包装可倾倒食品的片材包装材料上喷射模制开启装置的设备和方法
US8998599B2 (en) 2010-02-23 2015-04-07 Tetra Laval Holdings & Finance S.A. Apparatus and method for injection molding opening devices on sheet packaging material for packaging pourable food products
CN102762353A (zh) * 2010-02-23 2012-10-31 利乐拉瓦尔集团及财务有限公司 在包装可倾倒食品的片材包装材料上喷射模制开启装置的设备和方法
JP2014073848A (ja) * 2012-10-02 2014-04-24 Toppan Printing Co Ltd 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
WO2014187520A1 (fr) * 2013-05-24 2014-11-27 Georg Menshen Gmbh & Co. Kg Pièce à souder pourvue d'une couche de barrage
CN105658531A (zh) * 2013-12-23 2016-06-08 利乐拉瓦尔集团及财务有限公司 用于容器的打开装置和用于生产这样的打开装置的方法
JP2017504534A (ja) * 2013-12-23 2017-02-09 テトラ・ラヴァル・ホールディングス・アンド・ファイナンス・ソシエテ・アノニムＴｅｔｒａ Ｌａｖａｌ Ｈｏｌｄｉｎｇｓ ＆ Ｆｉｎａｎｃｅ Ｓ．Ａ． 容器のためのオープニングデバイスおよびそうしたオープニングデバイスを製造するための方法
RU2658270C2 (ru) * 2013-12-23 2018-06-19 Тетра Лаваль Холдингз Энд Файнэнс С.А. Открывное устройство для емкости и способ изготовления подобного открывного устройства
CN105658531B (zh) * 2013-12-23 2018-06-26 利乐拉瓦尔集团及财务有限公司 用于容器的打开装置和用于生产这样的打开装置的方法
EP4124584A1 (fr) * 2021-07-26 2023-02-01 Tetra Laval Holdings & Finance S.A. Dispositif d'ouverture pour un emballage et emballage pourvu d'un dispositif d'ouverture

Also Published As

Publication number Publication date
DE60229832D1 (de) 2008-12-24
EP1352840B1 (fr) 2008-11-12
ES2315344T3 (es) 2009-04-01
ATE414019T1 (de) 2008-11-15

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