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EP1538105B1 - Sachet à bec verseur scellé - Google Patents

Sachet à bec verseur scellé Download PDF

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Publication number
EP1538105B1
EP1538105B1 EP04075766A EP04075766A EP1538105B1 EP 1538105 B1 EP1538105 B1 EP 1538105B1 EP 04075766 A EP04075766 A EP 04075766A EP 04075766 A EP04075766 A EP 04075766A EP 1538105 B1 EP1538105 B1 EP 1538105B1
Authority
EP
European Patent Office
Prior art keywords
container
cylinder
spout
composite material
container according
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.)
Expired - Lifetime
Application number
EP04075766A
Other languages
German (de)
English (en)
Other versions
EP1538105A1 (fr
Inventor
Andrea. c/o Guala Pack S.p.A Tacchella
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.)
Guala Pack SpA
Original Assignee
Guala Pack SpA
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
Application filed by Guala Pack SpA filed Critical Guala Pack SpA
Publication of EP1538105A1 publication Critical patent/EP1538105A1/fr
Application granted granted Critical
Publication of EP1538105B1 publication Critical patent/EP1538105B1/fr
Anticipated expiration legal-status Critical
Expired - Lifetime 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/52—Details
    • B65D75/58—Opening or contents-removing devices added or incorporated during package manufacture
    • B65D75/5861—Spouts
    • B65D75/5872—Non-integral spouts
    • B65D75/5883—Non-integral spouts connected to the package at the sealed junction of two package walls
    • 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
    • B65D77/22—Details
    • B65D77/24—Inserts or accessories added or incorporated during filling of containers
    • B65D77/28—Cards, coupons, or drinking straws
    • B65D77/286—Cards, coupons, or drinking straws formed integrally with the container
    • 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
    • B65D75/00—Packages comprising articles or materials partially or wholly enclosed in strips, sheets, blanks, tubes or webs of flexible sheet material, e.g. in folded wrappers
    • B65D75/008—Standing pouches, i.e. "Standbeutel"

Definitions

  • the present invention relates to a flexible bag-like container for liquids or paste-like substances, in particular food substances, provided with a delivery spout.
  • Rigid, semi-rigid and flexible disposable containers are commonly used in the large-scale distribution of food products.
  • semi-rigid brick-shaped containers made of composite material, cardboard, metal, or plastics material for the distribution of drinks and fruit juices are known.
  • These containers have a small opening sealed by a thin piece of aluminium or composite material.
  • these containers are wrapped in thin plastics wrappers which enclose both the container and a drinking straw which is used by the user to perforate the closure seal and then to drink the contents of the package.
  • the outer wrapper is necessary to ensure that the straw cannot be lost up to the moment of use and to protect the straw from external contamination, as is required by hygiene standards.
  • a package of this type involves a fairly complex production cycle and an appreciable cost and is not very readily usable by the user.
  • the operations that are necessary to open the wrapper preclude the use of the product during other activities, for example, whilst walking about, or at least make it very difficult.
  • Another type of disposable container for liquids and paste-like substances which has recently become very widespread and has found favour with consumers is constituted by a flexible bag made of composite films and provided with a rigid delivery spout closed by a screw cap, generally provided with a ring seal.
  • the cap which is screwed onto the spout externally, ensures effective hygienic protection of the end of the spout.
  • the present invention overcomes these disadvantages and offers a low-cost, flexible container, the production of which is simplified and which is easier to use;
  • the container is provided with a delivery spout which is hygienically protected and sealed by a membrane, preferably constituted by a multi-layer composite film, which is welded to the end of the spout and is pressed flat around the whole spout to form a hygienic protective skirt.
  • the peeling operation is particularly awkward and, as a result of breakage of the tab, it is often necessary to break and remove the seal with a pointed or sharp implement.
  • JP 2000 033 958 teaches a flexible container according to the pre-characterizing portion of independent claim 1.
  • peripheral skirt of the seal can easily be "stripped off” and is easy to grip once it has been opened out, enabling a peeling action to be exerted in several directions along the entire sealing region, ensuring the desired result without difficulty or particular effort.
  • a preferred embodiment of the present invention comprises a flexible, bag-like container of a conventional type known per se (for example, from EP751081 ), the innovative aspect consisting in the closure system.
  • the container 1 is constituted, conventionally, by a pair of juxtaposed, front and rear sheets of composite material and by two lateral gussets which are folded like bellows and interposed between the two, front and rear sheets.
  • the two sheets and the lateral gussets are heat-sealed together at the periphery and, once the container has been filled, it adopts the shape indicated in the drawing in which the front sheet 2 and a lateral gusset 3 are visible.
  • the broken line 4 indicates the fold line of the gusset 3.
  • the strips between the edges of the container and the broken lines 5, 6, 7, and 8 and the continuous line 9 correspond to the heat-sealing regions.
  • a material commonly used to produce containers of this type is a composite film of polyester (PET) superimposed externally on an aluminium foil (Al) which is covered internally by a polyethylene film (PE), possibly with the interposition of a connecting film of nylon (N).
  • PET polyester
  • Al aluminium foil
  • N polyethylene film
  • the heat-sealing material with a lower softening point is constituted by the polyethylene film.
  • the container is provided, conventionally, with a delivery spout constituted by a drinking straw made of plastics material, preferably polypropylene, with a portion 10 housed inside the container and an outer portion 11 in which there are marked, in order, an externally smooth end portion 12, an externally threaded portion 13, a toothed portion 14 provided for non-reversible engagement with a ring seal of a screw cap, and a flanged portion provided externally with at least one, generally two, polygonal flanges 15, 16 which serve for the relative positioning of the bag and of the spout during the assembly process and as a rigid gripping and locating element during the filling and closure process.
  • a delivery spout constituted by a drinking straw made of plastics material, preferably polypropylene, with a portion 10 housed inside the container and an outer portion 11 in which there are marked, in order, an externally smooth end portion 12, an externally threaded portion 13, a toothed portion 14 provided for non-reversible engagement with
  • the container described is closed by a membrane seal 17 which is heat-sealed on the upper end of the spout by conventional techniques which are used for the production of the container (hot iron, ultrasound, high-frequency induction).
  • the seal 17 is preferably constituted by a composite, laminated piece of sheet comprising, basically, an outer polyester layer (optionally printed internally) which ensures the necessary mechanical tear strength, an intermediate aluminium layer, and a layer of highly adhesive varnish or plastics film which is united with the top of the spout.
  • the aluminium layer may have a thickness of 40 ⁇ m, the polyester layer a thickness of 12 ⁇ m, and the varnish layer a thickness of 5 ⁇ m.
  • the seal is constituted by a piece of sheet, which is preferably disc-shaped, with a diameter significantly greater than the outside diameter of the spout and preferably no less than the sum of the outside diameter of the cylindrical portion 12 of the spout and twice the axial extent thereof.
  • Figure 2 which shows a first stage of the operation to seal the container (which, naturally, takes place immediately after the filling thereof), the seal 17, which is pressed onto the top portion 12 of the spout by conventional mechanical devices, is welded thereto by heating (with an annular hot iron, ultrasound or induction) which ensures perfect adhesion of the seal to the top of the spout.
  • the welding area is identified by the circular ring 18.
  • the end of the spout is thus protected from any direct contact with the exterior during subsequent handling.
  • the seal 17 may be pressed flat in a manner such as to form projecting tabs 19 as shown in Figure 5, which further facilitate the unfolding operation.
  • a disc-shaped seal 17 is merely preferred, mainly for aesthetic reasons; there is nothing to prevent the use, as seals, of polygonal or even square pieces which in any case have dimensions such as to include a circle with a diameter at least equal to that indicated above.
  • Figures 1 to 5 relate to a conventional container in which a threaded spout is provided and which can therefore be closed by a screw cap or, without modification, by means of a folded membrane seal as provided for by the present invention.
  • the container of Figure 1 is arranged exclusively for closure by means of a membrane seal, it can use, in its structure, a spout such as that shown in Figure 6 in which the externally threaded portion is absent; if desired, this advantageously permits a longer axial extent of the smooth end portion which, amongst other things, can adopt an oval cross-section which can fit more comfortably in the mouth, since the constraint of circularity of the thread no longer applies.
  • the flexible container with delivery spout closed by a membrane seal according to the present invention may clearly consist of an envelope-like container, as shown in Figure 7, formed simply by two juxtaposed sheets welded together at their periphery, rather than a bag-like container.
  • the spout has two rigid fins 20, 21 which are interposed between the walls of the container and are welded thereto, basically to form a rigid structure for the gripping of the container, enabling a suitable unscrewing torque to be exerted between the container and the screw cap without thereby risking damage to the flexible container.
  • a single sheet for example, a rectangular sheet of composite material (for example, PET,Al,PE) folded onto itself along a fold line 28, forms an envelope with three sides 22, 23, 24 which are heat-sealed to one another, after the interposition, along the folded side, of a drinking straw 25 which is extended outside the envelope by a spout 26 provided with flanges for the handling of the container.
  • a rectangular sheet of composite material for example, PET,Al,PE
  • the spout is closed with a membrane seal 27 such as that already described.
  • This type of container is suitable for mass production starting with a single strip of composite film which, during the production process, is folded onto itself and cut into sections in the course of the edge-welding operation by extremely simple apparatus.
  • the empty containers can be stocked in large quantities with an extremely small volume for distribution to the food-packaging industry where, upon completion of the filling operation, sealing with a membrane seal is performed by conventional means (hot iron, ultrasound, etc.).
  • the lower gusset 35 which is folded onto itself along the line 33 is interposed, diagonally relative to the vertical extent of the container, between the two juxtaposed faces of the single, folded sheet 34.
  • each of the two faces of the sheet 37 which is folded onto itself along the fold line 38 is extended at the bottom by a scalene triangular appendage 39 with an obtuse-angled vertex 42 (preferably of 120°).
  • a gusset 40, folded onto itself along a line 41 intersecting the vertex 42 of the triangular appendage is interposed between the two faces, in the region of the edges remote from the fold line 38.
  • the fold line 41 may intersect the upper edge 43 of the folded sheet 37 at any point but preferably, as shown, at its end remote from the spout.
  • FIG. 16 The perspective view of Figure 16 shows a container of this type once it has been filled.

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Bag Frames (AREA)
  • Packages (AREA)

Claims (7)

  1. Récipient en forme d'enveloppe ou en forme de sac flexible (1) composé de matériau composite, muni d'un bec verseur de distribution (11) composé de matériau plastique rigide thermo scellé sur le matériau composite de l'enveloppe ou du sac, le bec verseur étant étendu à l'extérieur du récipient par au moins un cylindre d'extrémité lisse (12) prévu pour l'insertion dans la bouche d'un utilisateur:
    le cylindre lisse (12) étant fermé par un joint à membrane (17) composé de matériau composite qui est thermo scellé sur l'extrémité du cylindre et dont une partie est pressée à plat autour du cylindre pour recouvrir sa surface externe, caractérisé en ce que :
    la partie du joint à membrane (17) est pressée à plat et repliée sur elle-même afin de former au moins une languette de saisie (19).
  2. Récipient selon la revendication 1 dans lequel le cylindre (12) a une section transversale circulaire et le joint à membrane est formé par un disque de matériau composite ayant un diamètre non inférieur à la somme du diamètre du cylindre et à deux fois l'étendue axiale du cylindre.
  3. Récipient selon la revendication 1 dans lequel le cylindre (12) a une section transversale ovale et le joint à membrane est formé par un disque de matériau composite ayant un diamètre non inférieur à la somme du diamètre majeur de la section transversale ovale et à deux fois l'étendue axiale du cylindre.
  4. Récipient selon l'une quelconque des revendications précédentes, formé par deux feuilles (29A, 29B) juxtaposées avec l'interposition, entre les extrémités des feuilles à distance du bec verseur de distribution, d'un soufflet (30) qui est replié sur lui-même afin de former un soufflet à expansion.
  5. Récipient selon l'une quelconque des revendications 1 à 3 précédentes, comprenant une feuille de matériau composite repliée sur elle-même le long d'une ligne de pliage (28) afin de former deux parois opposées du récipient et dans lequel le bec verseur de distribution (25, 26) est inséré entre les parois opposées dans la région de la ligne de pliage.
  6. Récipient selon la revendication 5 dans lequel un soufflet (35) replié sur lui-même et formant un soufflet à expansion est interposé entre les extrémités des parois à distance du bec verseur de distribution.
  7. Récipient selon la revendication 5 dans lequel l'extrémité de chaque paroi (37) à distance du bec verseur de distribution est étendu par un appendice triangulaire scalène (39) avec un sommet à angle obtus (42) et un soufflet (40), replié sur lui-même le long d'une ligne de pliage (41) coupant approximativement le sommet (42) est interposé entre les parois (37), le soufflet formant un soufflet à expansion et, conjointement avec les appendices triangulaires (39) des parois, formant également une base de support triangulaire du récipient.
EP04075766A 2003-12-04 2004-03-10 Sachet à bec verseur scellé Expired - Lifetime EP1538105B1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITMI20030569 2003-03-21
IT000569U ITMI20030569U1 (it) 2003-12-04 2003-12-04 Contenitore flessibile a sacchetto con beccuccio di erogazione e sigil lo a membrana di chiusura e protezione periferica del beccuccio

Publications (2)

Publication Number Publication Date
EP1538105A1 EP1538105A1 (fr) 2005-06-08
EP1538105B1 true EP1538105B1 (fr) 2008-01-16

Family

ID=34509434

Family Applications (1)

Application Number Title Priority Date Filing Date
EP04075766A Expired - Lifetime EP1538105B1 (fr) 2003-12-04 2004-03-10 Sachet à bec verseur scellé

Country Status (6)

Country Link
EP (1) EP1538105B1 (fr)
AT (1) ATE384009T1 (fr)
DE (1) DE602004011312T2 (fr)
ES (1) ES2300702T3 (fr)
IT (1) ITMI20030569U1 (fr)
PT (1) PT1538105E (fr)

Families Citing this family (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7968057B2 (en) 2004-11-23 2011-06-28 Estech Europe Limited Autoclave
IT1401858B1 (it) 2010-09-01 2013-08-28 Guala Pack Spa Dispositivo e metodo per impaccare contenitori a corpo sottile, e assieme di trasporto di detti contenitori
ITBS20110060A1 (it) 2011-04-26 2012-10-27 Guala Pack Spa Dispositivo di sterilizzazione a fasci di elettroni per contenitori a parete sottile e metodo di sterilizzazione
ITBS20110061A1 (it) 2011-04-26 2012-10-27 Guala Pack Spa Unità di ingresso o di uscita di un dispositivo di sterilizzazione afasci di elettroni e metodo di sterilizzazione
ITBS20120167A1 (it) * 2012-11-29 2014-05-30 Guala Pack Spa Tappo con dispositivo di gioco
ES2503965B1 (es) 2014-03-31 2015-07-14 Bossar Packaging, S.A. Procedimiento de fabricación de envases flexibles con válvula dispensadora
JP6679831B2 (ja) * 2015-03-12 2020-04-15 凸版印刷株式会社 包装容器
IT201700108088A1 (it) * 2017-09-27 2019-03-27 Guala Pack Spa Tappo gioco
IT201900006687A1 (it) 2019-05-09 2020-11-09 Guala Pack Spa Cannuccia per imballi flessibili a pareti sottili

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2388738A (en) * 1944-02-08 1945-11-13 Lever Brothers Ltd Container closure
US6241132B1 (en) * 1998-05-13 2001-06-05 The Testor Corporation Fluid dispensing apparatus with fitment spout and valve
JP2000033958A (ja) * 1998-07-22 2000-02-02 Dainippon Printing Co Ltd 注出口付きレトルト用袋
US6474490B1 (en) * 2000-11-10 2002-11-05 Label Makers, Inc. Combined container cap and lift tab opener

Also Published As

Publication number Publication date
EP1538105A1 (fr) 2005-06-08
ATE384009T1 (de) 2008-02-15
DE602004011312D1 (de) 2008-03-06
PT1538105E (pt) 2008-04-23
ITMI20030569U1 (it) 2005-06-05
DE602004011312T2 (de) 2009-01-15
ES2300702T3 (es) 2008-06-16

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