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WO1989008587A1 - Recipient souple auto-etancheifiant - Google Patents

Recipient souple auto-etancheifiant Download PDF

Info

Publication number
WO1989008587A1
WO1989008587A1 PCT/AU1989/000093 AU8900093W WO8908587A1 WO 1989008587 A1 WO1989008587 A1 WO 1989008587A1 AU 8900093 W AU8900093 W AU 8900093W WO 8908587 A1 WO8908587 A1 WO 8908587A1
Authority
WO
WIPO (PCT)
Prior art keywords
container
discharge portion
nozzle
restrictions
fluid
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.)
Ceased
Application number
PCT/AU1989/000093
Other languages
English (en)
Inventor
Assad Elias Sarroff
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.)
SARROFF CHEMICALS Pty Ltd
Original Assignee
SARROFF CHEMICALS Pty 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
Application filed by SARROFF CHEMICALS Pty Ltd filed Critical SARROFF CHEMICALS Pty Ltd
Publication of WO1989008587A1 publication Critical patent/WO1989008587A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

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
    • B65D47/00—Closures with filling and discharging, or with discharging, devices
    • B65D47/04—Closures with discharging devices other than pumps
    • B65D47/20—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge
    • B65D47/2018—Closures with discharging devices other than pumps comprising hand-operated members for controlling discharge comprising a valve or like element which is opened or closed by deformation of the container or closure
    • 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
    • B65D35/00—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor
    • B65D35/24—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices
    • B65D35/40—Pliable tubular containers adapted to be permanently or temporarily deformed to expel contents, e.g. collapsible tubes for toothpaste or other plastic or semi-liquid material; Holders therefor with auxiliary devices for metering discharge
    • 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
    • B65D75/40—Packages formed by enclosing successive articles, or increments of material, in webs, e.g. folded or tubular webs, or by subdividing tubes filled with liquid, semi-liquid, or plastic materials
    • B65D75/44—Individual packages cut from webs or tubes
    • B65D75/48—Individual packages cut from webs or tubes containing liquids, semiliquids, or pastes, e.g. cushion-shaped packages

Definitions

  • This invention relates to packaging for fluids, especially viscous liquids.
  • the first category provides a package which must be pierced, with a sharp instrument or a straw which is provided, to release the contents.
  • This type of package is not resealable, does not allow any real control over the volume of contents dispensed, and is virtually impossible to file so that the whole available volume is used, resulting in wasted materials.
  • the second category comprises packages which resealed to some extent, but which require external means, such as a straw, to extract the contents.
  • Such containers have a disadvantage in that it is necessary to provide these external means and affix them to the package.
  • Such packages do not usually allow all the contents to be extracted, so that waste occurs. Further, such packages generally require elaborate manufacturing techniques and cannot be made simply from sheets of plastic material.
  • the third category includes pressure releasable containers. Such containers allow the discharge of fluid upon sufficient pressure being applied to the fluid through the container by, for example, squeezing. Upon release, the discharge opening seals either of its own accord or upon being mechanically forced shut.
  • the major disadvantage inherent in such a container is that any sudden impact, during storage or use, causes leakage of the contents. Also, such containers cannot be filled tightly, as this causes leakage if the release pressure is in any normal range.
  • the present invention comprises according to one aspect a container formed from two pieces of flexible material.
  • the container has a body portion and a nozzle portion.
  • the nozzle portion includes restrictions on each side, which narrow the available passage for fluid from.the body of the container.
  • the container and restrictions are so configured that fluid cannot be released by pressure alone - the nozzle portion must be simultaneously pulled outward to release the contents. When pulling ceases, the container reseals at the base of the nozzle.
  • a further preferred aspect of the present invention is that the container discharges initially into the nozzle region, which can contain only a discrete volume of the liquid contents.
  • the container can therefore be used to discharge a predetermined quantity of liquid.
  • a container according to the present invention may be formed by using a single high-frequency (RF) welding die to produce edge seams, the restrictions, and optionally an additional weak seal near the opening in the nozzle.
  • the whole container may therefore be formed in a single operation.
  • the present invention also relates to a container which is especially useful for a filling process.
  • This container provides, in addition to the features described above, a further pair of restrictions at the base of the body of the container, which during a rear filling of the container prevent fluid loss. After filling the container tightly, the bottom of the container may be sealed up.
  • the present invention further encompasses a method of producing tightly filled containers, wherein the container is provided with a pair of restrictions at the rear end of the body to prevent spillage. Fluid is injected from the rear through an injection nozzle, after which the nozzle is removed, and the tightly filled container is sealed while excess material at the rear end is simultaneously removed. This method is useful even for containers without the novel nozzle portion of the instant invention.
  • the present invention has many advantages over containers currently in use. It does not require a separate cap, so that considerably complexity in manufacture and associated expense are eliminated.
  • the container stores flat until filled, greatly simplifying storage in transport. Energy savings due to easier transport of the empty packages are considerable. Also, the filled containers are flexible and can be packed relatively tightly.
  • the flat containers can be printed flat, which is a considerably easier process than printing on an actual filled or empty expanded container.
  • the container has considerable functional advantages over conventional plastic bottles.
  • the nozzle can be used as a volumetric measure, so that extra spoons or cups are not required. This is especially useful, for example, for gels or pastes for medical use, for dispensing a concentrate of some sort, or viscous chemicals.
  • the material of which the container is formed must, of course, be compatible with the contents.
  • the container will not release fluid solely under pressure, so that the risk of leakage during storage and transport, and of accidental spillage in use, are minimal. Fluid is released by simply pulling on the nozzle, and if necessary squeezing the container if insufficient fluid remains. Upon release of the nozzle, the container is self sealing.
  • the instant container can also be very tightly filled, if desired, to a pillow shape, with one or both sides of the container being formed from transparent material. This creates a very attractive package for display, in which the contents are clearly visible.
  • Figure 1 shows a cross-sectional view of one embodiment of the container.
  • the container is formed from two pieces of flat plastic material, joined by high
  • the container has a nozzle region 1, which has provided therein restrictions 4 and 5. These restrictions are preferably formed by high frequency (RF) welding, but could be heat sealed or ultrasonicly welded (as could periphery weld 2). 2 ⁇ There is also provided, for additional security of containment during transport, an additional heat seal 3. The latter heat seal 3 is broken before use by simply forcing fluid out of the nozzle.
  • RF radio frequency
  • the container could __ be formed from lengths of tubular material if desired, with corresponding alterations to the manufacturing process.
  • the valve mechanism is applicable to many different shapes of containers, not only those illustrated.
  • the dimensions of the restrictions 4 and 5 and, _ ⁇ therefore, the necessary gap between them are dependent chiefly on the viscosity of the fluid to be contained and also to some extent on the dimensions of the container. Less viscous fluids require a narrower aperture to be effectively contained. Ideally, the fluid contained is of the consistency of shampoo, or of even greater viscosity. However, container will function effectively with fluid of almost any viscosity, with suitable adaptations to the restrictions.
  • the container may be formed from a flexible plastic material, such as PVC plastic sheeting.
  • a flexible plastic material such as PVC plastic sheeting.
  • the choice of material and the thickness of such material necessarily depends " on the fluid to be contained, and the volume of fluid to be contained. Particularly for applications involving volatile contents, such as the perfume components of shampoo, it is preferred to form the container from foil laminate materials, with corresponding minor alterations to production techniques.
  • the material selected must be necessarily chemically compatable with the contents.
  • the actual closure mechanism is a result of the internal fluid distending the plastic film so as to produce a rounded V-shaped bulge with its apex at the bottom of or between the passage between the restrictions. This bulge occurs on both sides of the container, that is on both sheets of material. Best closures result when the restrictions are substantially flat, so that * the passage formed between the bulges and the restrictions has a minimum volume. The smaller that this volume, is, the more effective the closure.
  • the restrictions may be formed as complete curves back onto the periphery of the container as illustrated, or may be configured so as to not actually reach the periphery at either end, so long as the gaps left are consistent with the maintenance of the function impartof the container. Further, these restrictions may protrude to some extent into the body of the container.
  • the nozzle may be folded back onto the body of the container, to make any leakage virtually impossible. If the container is formed from UV plastic with a very fine surface, the nozzle will loosely adhere of its own accord when folded back. If desired, some additional fixing means could be provided.
  • Fluid is removed from the container by pulling outwardly on the nozzle, and if necessary, squeezing the package.
  • the fluid will not come out of the nozzle under the influence of pressure alone. This is an important advantage over prior attempts to produce such an article.
  • Fluid ' passes through the restrictions into the nozzle region, as shown by arrow 6. Upon release of the nozzle,
  • the V-shaped bulge forms once again, thus resealing the container.
  • An additional feature of this invention is that a discrete volume of contents is held in the nozzle region before it is squeezed completely out.
  • the container can j. - therefore be used to dispense a predetermined volume of fluid. This is especially useful in containers for dispensing, for example, pastes and gels where only a particular quantity is required.
  • the embodiment described above may be filled by, for instance, injection on a filling line of known type.
  • the container be filled to its maximum volume, both from a materials economy perspective and from a marketing perspective.
  • a piliow-shaped container, especially with a transparent side to display the contents, produces a particularly desirable container.
  • FIG. 2 there is shown therein a cross-sectional view of a further embodiment of the present invention.
  • the container shown therein generally designated 10 is especially desirable as it can be readily filled tightly.
  • the container is forj ⁇ ed, once again, by high
  • Restrictions 12 and 13 are also formed at this time.
  • the releasable heat seals 17 are formed in the same operation, by having a die element in the welding die set further back from the surface of the plastic and the rest of the (strong)
  • Opening 18 is formed in this single process also.
  • the nozzle or dosage compartment 11 is thus formed between the opening 18 and the restrictions 12 and 13.
  • the whole nozzle area can be folded back along line 22 onto the body of the container, so that a pillow-shaped package is presented for sale. There is also therefore no possibility of spillage, with three distinct points of closure.
  • This embodiment 10 is also formed with restrictions 19 and 20 at the base by high frequency welding, in the same process as the other features.
  • the restrictions function to form a valve-like closure in the same way as the restrictions at the nozzle end.
  • the fluid is injected from the rear.
  • Restrictions 19, 20 form a tight closure around the injection nozzle 21, which is withdrawn after filling, and said restrictions then form a closure at the base of the container.
  • the container is then sealed along line 23.
  • the excess plastic material is cut off simultaneously with a strong heat seal being applied to the base. Sealing could alternatively be made by means of an ultrasonic weld. RF welding cannot be used due to the proximity of liquid.
  • the present invention is useful for a wide range of products, including shampoo and similar hair care products, food products including condensed milk and food pastes, pharmaceutical products, disinfectants, toiletries and cosmetics.

Landscapes

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

Abstract

Le récipient comprend une partie de corps (10) composé de deux pièces en matière souple, ainsi qu'une partie d'ajutage (16). Ladite partie d'ajutage (16) comporte des restrictions (13) sur chaque côté, lesquelles rétrécissent le passage disponible pour le fluide provenant du corps (10) du récipient. Ledit corps (10) ainsi que lesdites restrictions (13) sont configurés de manière que du fluide ne peut pas être libéré par la pression seule. La partie d'ajutage (16) doit être simultanément retirée afin de libérer les constituants. Lorsque l'on cesse de tirer, ledit récipient se referme de manière étanche à la base de l'ajutage (16). Dans un mode de réalisation préféré la décharge se trouve initialement dans la région de l'ajutage (11) contenant un volume discret de liquide permettant ainsi un dosage mesuré. Dans un autre mode de réalisation préféré on a prévu des restrictions (19) et (20) à la base dudit récipient afin de ménager un clapet de remplissage unidirectionnel.
PCT/AU1989/000093 1988-03-09 1989-03-09 Recipient souple auto-etancheifiant Ceased WO1989008587A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
AUPI715088 1988-03-09
AUPI7150 1988-03-09

Publications (1)

Publication Number Publication Date
WO1989008587A1 true WO1989008587A1 (fr) 1989-09-21

Family

ID=3772898

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1989/000093 Ceased WO1989008587A1 (fr) 1988-03-09 1989-03-09 Recipient souple auto-etancheifiant

Country Status (1)

Country Link
WO (1) WO1989008587A1 (fr)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5411178A (en) * 1994-03-11 1995-05-02 Beeton Holdings Limited Fluid dispenser pouch with venturi shaped outlet
AU688299B2 (en) * 1993-01-04 1998-03-12 Deb Ip Limited Multi-outlet fluid dispenser pouch
EP1520797A4 (fr) * 2002-05-08 2006-07-05 Hagy Tech Co Ltd Buse d'evacuation capable d'empecher le retour de contenus et contenant pour liquides comprenant une buse d'evacuation
US11845588B2 (en) 2020-08-05 2023-12-19 Illinois Tool Works Inc. Pouch enclosure with filling slit

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017080B (de) * 1955-05-11 1957-10-03 Siegfried Koester Vorrichtung zum dosierten Entnehmen von pastenfoermigen und duennfluessigen Stoffen aus Tuben und Behaeltern
AU5305764A (en) * 1964-12-17 1966-06-23 The Battelle Development Corporation Squeeze-type dispensing head
US3486666A (en) * 1967-01-25 1969-12-30 Albert M Herzig Squeezable containers
WO1987000817A1 (fr) * 1984-02-27 1987-02-12 Poul Carl Goedecke Conteneur compressible pour milieux de consistance pateuse ou cremeuse et des fluides tres visqueux
EP0226290A2 (fr) * 1985-12-10 1987-06-24 Peter Thomsen Sachet distributeur et son procédé de fabrication

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1017080B (de) * 1955-05-11 1957-10-03 Siegfried Koester Vorrichtung zum dosierten Entnehmen von pastenfoermigen und duennfluessigen Stoffen aus Tuben und Behaeltern
AU5305764A (en) * 1964-12-17 1966-06-23 The Battelle Development Corporation Squeeze-type dispensing head
US3486666A (en) * 1967-01-25 1969-12-30 Albert M Herzig Squeezable containers
WO1987000817A1 (fr) * 1984-02-27 1987-02-12 Poul Carl Goedecke Conteneur compressible pour milieux de consistance pateuse ou cremeuse et des fluides tres visqueux
EP0226290A2 (fr) * 1985-12-10 1987-06-24 Peter Thomsen Sachet distributeur et son procédé de fabrication

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AU688299B2 (en) * 1993-01-04 1998-03-12 Deb Ip Limited Multi-outlet fluid dispenser pouch
US5411178A (en) * 1994-03-11 1995-05-02 Beeton Holdings Limited Fluid dispenser pouch with venturi shaped outlet
EP1520797A4 (fr) * 2002-05-08 2006-07-05 Hagy Tech Co Ltd Buse d'evacuation capable d'empecher le retour de contenus et contenant pour liquides comprenant une buse d'evacuation
US11845588B2 (en) 2020-08-05 2023-12-19 Illinois Tool Works Inc. Pouch enclosure with filling slit

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