EP0223886B1 - Récipient flexible - Google Patents

Récipient flexible Download PDF

Info

Publication number
EP0223886B1
EP0223886B1 EP85308025A EP85308025A EP0223886B1 EP 0223886 B1 EP0223886 B1 EP 0223886B1 EP 85308025 A EP85308025 A EP 85308025A EP 85308025 A EP85308025 A EP 85308025A EP 0223886 B1 EP0223886 B1 EP 0223886B1
Authority
EP
European Patent Office
Prior art keywords
container
aperture
flap
collar
contents
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
EP85308025A
Other languages
German (de)
English (en)
Other versions
EP0223886A1 (fr
Inventor
Charalambos George Kalkipsakis
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.)
LEFTRIGHT AUSTRALIA LIMITED
Visy Films and Laminates Pty Ltd
Wrightcel Ltd
Astrapak Ltd
Liqui Box Asia Pacific Ltd
Original Assignee
Courtaulds Packaging Australia Ltd
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
Priority claimed from AU44436/85A external-priority patent/AU570121B2/en
Application filed by Courtaulds Packaging Australia Ltd filed Critical Courtaulds Packaging Australia Ltd
Priority to DE8585308025T priority Critical patent/DE3578779D1/de
Priority to EP85308025A priority patent/EP0223886B1/fr
Publication of EP0223886A1 publication Critical patent/EP0223886A1/fr
Application granted granted Critical
Publication of EP0223886B1 publication Critical patent/EP0223886B1/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
    • B65D75/5877—Non-integral spouts connected to a planar surface of the package wall
    • 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
    • B65D77/04—Articles or materials enclosed in two or more containers disposed one within another
    • B65D77/06—Liquids or semi-liquids or other materials or articles enclosed in flexible containers disposed within rigid containers
    • B65D77/062—Flexible containers disposed within polygonal containers formed by folding a carton blank
    • B65D77/065—Spouts, pouring necks or discharging tubes fixed to or integral with the flexible container

Definitions

  • This invention relates to an improvement in flexible containers of the kind used in storing and dispensing liquids or solid suspensions.
  • European patent application EP-A 0 056 016 discloses a flexible container which includes a filling aperture, defined by a collar which is also adapted to receive the dispensing tap for the container.
  • a flap is provided to cover the aperture so that it can be heat sealed to the periphery of the aperture. This results in a sealed package which is only ruptured by the insertion into the collars of a dispensing tap which incorporates a spigot to break the flap sealing the aperture.
  • a difficulty encountered with the initial design was to ensure that the flap would be correctly located over the aperture during the heat sealing operation. This problem was overcome by heat sealing portions of the flap to the periphery of the aperture at selected positions on two sides of the aperture.
  • FIG. 1 An example of this construction is shown in Figures 1 and 2 of the drawings.
  • a portion of the flexible container is shown in Figure 1.
  • the container is formed of two walls 2 and 4 welded together at seam 3.
  • the container is filled and dispensed through the aperture 7 which is defined by the gland 8.
  • the wall of the container is secured to the outer surface of the flange 9 of the gland 8 and the aperture is covered by the flap 5.
  • This flap is heat sealed with small round seals 13 at a number of places around the outer circumference of the inner surface of the flange 9.
  • the edge 12 of flap 5 is shown in the schematic plan view of the aperture 7 in Figure 2.
  • the edge 14 of the flange 9 is also shown in Figure 2. When the container is filled it is sealed by the heat seal at line 15.
  • the present invention provides a flexible container sealed about its edges, one wall of the container having an aperture through which the contents of the container can be passed for filling or dispensing, a collar 21 mounted in the aperture, the collar 21 being adapted to receive means for dispensing the contents of the container, and a flap 25 located inside the container covering the aperture and having a heat sealable layer forming a surface thereof adjacent the said one wall, which is characterised in that the flap 25 is attached to the container or collar 21 by means of at least two divergent weld lines 26, 27 located on opposite sides of the aperture, which weld lines 26, 27 form a divergent chute of the flap 25 which widens in the direction away from the centre of the aperture to direct the contents into the container.
  • the flap abuts the collar flange and the aperture in its prefilled state under filling conditions the flap and the collar flange will distend to form a funnel approximately perpendicular to the axis of the collar.
  • the diameter of the funnel so formed is dependent on the position of the welds and these should be placed to ensure that the diameter is at least equivalent to that of the collar.
  • Figures 3, 4 and 5 of the drawings A preferred form of this invention is illustrated in Figures 3, 4 and 5 of the drawings in which Figure 3 is a plan view of the collar and flap, Figure 4 is a sectional view of the collar and flap during the fill operation and Figure 5 is a perspective view of Figure 4.
  • the collar 21 is a polyethylene cylinder having a base flange 22 and a support flange 23 and location flange 24.
  • the collar can be formed from a modified polyethylene such as polyethylene vinyl acetate.
  • the collar is inserted into the aperture of the wall of the flexible container which is heat sealed to the upper surface of base flange 22.
  • the support flange 23 provides support for the container during filling when the collar is gripped and held below the filling nozzle.
  • the flexible containers are placed in a rigid box when filled and the collar is inserted through an aperture in a wall of the box and the wall locates between flanges 22 and 23 of the collar 21. A dispensing tap is then inserted into the collar 21.
  • the flap 25 is secured to the under surface base flange 22 by welds 26 and 27.
  • the flap 25 abuts the flange 22 in the unfilled bag and after filling the flap is heat sealed by a circular weld about the periphery of the aperture of collar 21.
  • Any two ply laminate which incorporates a non-heat sealing outer layer such as Polyester, Nylon or Metal Foil, and a heat sealable inner layer of Polyethylene or modified Polyethylene can be used for the flap 25.
  • the container may be formed from any flexible film or laminate, with or without a loose inner layer, which can be satisfactorily heat sealed to form a container.
  • laminates are of two ply construction incorporating an outer barrier layer with the inner layer being polyethylene which may be modified to enhance its properties.
  • a third layer of foil or a vacuum deposit of aluminium is sandwiched in the laminate to provide a barrier to gases, water vapour and light.
  • the loose inner layer is always polyethylene, either natural or modified.
  • Liquid at 50,000 cps will require a head pressure of 280 cm of water to obtain a flow rate of 1 litre/min with the conventional gland.
  • the new gland will achieve a flow rate of 6 litres/min at half the above head pressure (140 cm of water).

Landscapes

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

Claims (3)

1. Un conteneur flexible rendu étanche sur ses bords, une paroi du conteneur présentant une ouverture à travers laquelle on peut faire passer le contenu du conteneur pour assurer le remplissage ou le vidage de ce dernier, une collerette (21) montée sur l'ouverture, cette collerette (21) étant susceptible d'être équipée de moyens de distribution du contenu du conteneur, ainsi qu'un volet (25) disposé à l'intérieur du conteneur pour couvrir l'ouverture et muni d'une couche que l'on peut sceller à la chaleur et formant une surface adjacente à ladite paroi, caractérisé en ce que le volet (25) est fixé au conteneur ou à la collerette (21) à l'aide d'au moins deux cordons de soudure divergents (26, 27) situés sur des faces opposées de l'ouverture, ces cordons de soudure (26, 27) formant une goulotte divergente du volet (25) qui s'élargit dans la direction s'éloignant du centre de l'ouverture pour diriger le contenu dans le conteneur.
2. Un conteneur selon la revendication 1, dans lequel le volet est formé d'un stratifié à deux couches (25), la première couche de ce stratifié, susceptible d'être scellée à la chaleur, étant formée de polyéthylène ou de polyéthylène modifié et la seconde couche étant formée d'un film non apte à être scellé à la chaleur en polyester, en nylon ou en feuille métallique.
3. Un conteneur selon la revendication 2, dans lequel une troisième couche de feuille métallique ou de métal déposé sous vide est interposé entre les premières et secondes couches.
EP85308025A 1984-06-29 1985-11-05 Récipient flexible Expired - Lifetime EP0223886B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE8585308025T DE3578779D1 (de) 1985-11-05 1985-11-05 Verformbarer behaelter.
EP85308025A EP0223886B1 (fr) 1984-06-29 1985-11-05 Récipient flexible

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AU44436/85A AU570121B2 (en) 1984-06-29 1984-06-29 Flexible container with filling and dispensing aperture
EP85308025A EP0223886B1 (fr) 1984-06-29 1985-11-05 Récipient flexible

Publications (2)

Publication Number Publication Date
EP0223886A1 EP0223886A1 (fr) 1987-06-03
EP0223886B1 true EP0223886B1 (fr) 1990-07-18

Family

ID=25626726

Family Applications (1)

Application Number Title Priority Date Filing Date
EP85308025A Expired - Lifetime EP0223886B1 (fr) 1984-06-29 1985-11-05 Récipient flexible

Country Status (1)

Country Link
EP (1) EP0223886B1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE4028507A1 (de) * 1990-09-07 1992-03-12 Sengewald Karl H Gmbh Packung, insbesondere fuer fliess- und rieselfaehiges gut
FR2697983B1 (fr) * 1992-11-17 1995-01-27 Achat Distribution Ste Fse Procédé et dispositif de réalisation de doses de boisson et notamment de café.
GB9414347D0 (en) * 1994-07-15 1994-09-07 Smith David S Packaging A dispense member
US5773067A (en) * 1994-12-23 1998-06-30 Societe Agricole De Produits De Base Method for production of metered amounts of drinks, especially coffee

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL283230A (fr) * 1961-09-14
AU519675B2 (en) * 1978-05-30 1981-12-17 Wrightcel Limited Container
ZA819032B (en) * 1981-01-07 1982-11-24 Wrightcel Ltd Container

Also Published As

Publication number Publication date
EP0223886A1 (fr) 1987-06-03

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