WO2004020308A1 - Sachets interconnectes concus pour permettre a un liquide de passer a travers les contenus - Google Patents

Sachets interconnectes concus pour permettre a un liquide de passer a travers les contenus Download PDF

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Publication number
WO2004020308A1
WO2004020308A1 PCT/GB2003/003708 GB0303708W WO2004020308A1 WO 2004020308 A1 WO2004020308 A1 WO 2004020308A1 GB 0303708 W GB0303708 W GB 0303708W WO 2004020308 A1 WO2004020308 A1 WO 2004020308A1
Authority
WO
WIPO (PCT)
Prior art keywords
sachet
web
sachets
sheets
beverage
Prior art date
Application number
PCT/GB2003/003708
Other languages
English (en)
Other versions
WO2004020308A8 (fr
Inventor
John Nicholas Reid
Original Assignee
Vallid Limited
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 Vallid Limited filed Critical Vallid Limited
Priority to AU2003259364A priority Critical patent/AU2003259364A1/en
Publication of WO2004020308A1 publication Critical patent/WO2004020308A1/fr
Publication of WO2004020308A8 publication Critical patent/WO2004020308A8/fr

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
    • 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
    • B65D75/42—Chains of interconnected packages
    • 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
    • B65D85/00—Containers, packaging elements or packages, specially adapted for particular articles or materials
    • B65D85/70—Containers, packaging elements or packages, specially adapted for particular articles or materials for materials not otherwise provided for
    • B65D85/804—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package
    • B65D85/8043—Packages adapted to allow liquid to pass through the contents

Definitions

  • the present invention relates to the dispensing of beverages .
  • dispensing machines In order to dispense beverages such as coffee, tea, chocolate or soup, dispensing machines have normally relied on the use of instant products, these being powders that dissolve completely in water to produce the desired beverage. To make the beverage, it was only necessary to dispense the appropriate amount of instant powder into a cup and to fill the cup with water. This considerably simplified the construction of the vending or dispensing machine, but the taste of the resulting beverages left much to be desired. Most consumers prefer tea made by brewing tea leaves and coffee made by percolating hot water through ground coffee powder.
  • the sachets should remain hermetically sealed until they are used in making a beverage.
  • the breaking of the hermetic seal to inject a liquid into the sachet can be effected by inserting a needle into a wall of the sachet but it is also necessary to break the seal to allow the liquid to flow from the sachet into a dispensing cup.
  • the sachet is arranged to burst under the pressure of the injected liquid. This however is not particularly satisfactory as the popping of the sachet is unpredictable and can lead to the user being splashed.
  • a further disadvantage of known sachets is that they are not well suited to use in an automated dispensing machine. This is because the sachets are packaged individually.
  • the present invention provides a continuous web comprising a chain of interconnected sachets, wherein each sachet is formed of two sheets of impermeable material bonded to one another to define a pocket containing a beverage material from which a beverage can be made by injecting a liquid into the pocket, each sachet being hermetically sealed when connected to the next sachet in the web, and the hermetic seal being broken upon separation of the sachet from the web to form or unseal a discharge opening through which the beverage may be discharged from the sachet.
  • beverage material is used herein to include materials such as tea leaves and coffee powder that leave a residue in the sachet as well as fully soluble powders and liquid concentrates that leave no residue.
  • the discharge opening is formed by an array of holes made in at least one of the sheets, the holes acting as a sieve to permit the brewed beverage to leave the sachet while retaining the leaves .
  • the sachets When the sachets are formed in this manner, the sachets may be connected to one another by labels that are adhered to the outer surfaces of the sachets, the line of adhesion of the labels to the sachets encircling the discharge opening so as to seal the contents of the sachet.
  • the label when the label is torn to enable a sachet to be separated from the web, the hermetic seal is automatically broken.
  • the label nevertheless remains in place and this is advantageous in that the label can act to channel the discharged beverage into a dispensing cup and to prevent the beverage from spurting out laterally from the discharge opening when liquid is injected into the sachet under pressure .
  • the sachet When making coffee or a beverage that uses a fine powder through which the injected liquid must percolate, it is preferable to form the sachet with a pocket that is open at one end and to adhere a filter material to the interior surfaces of the sheets defining the pocket to act as a filter. With such sachets, the injected liquid must first pass through the fine powder then the filter material before it can be discharged from the open end of the pocket.
  • the sheets of plastics material may for example be formed of a laminate that comprises an inner layer of a first material, such as polypropylene that is simple to weld and a second layer of polyester that offers greater strength.
  • a first material such as polypropylene that is simple to weld
  • polyester layer When using such a laminated material, it would be possible for the polypropylene layer to be continuous but for the polyester layer to be interrupted between the individual sachets. The interruption of the polyester layer would make the web easy to tear between sachets but before a sachet is separated from the web the continuous polypropylene layer would ensure that the contents of the sachets remain hermetically sealed.
  • Such a spacer serves during the production of a beverage to receive the tip of a needle piercing only one of the sheets and to permit liquid injected therein by the needle to flow into the pocket in order to contact the beverage material.
  • the spacer may comprise an annular body bonded to at least one of the sheets and defining an annular chamber for receiving the tip of a needle and at least one passage for enabling liquid injected into the chamber to flow into the pocket.
  • tractor feed holes along the sides of the web. These may either be formed in extensions of the sheets of plastics material lying outside the pockets or they may be formed in a tape that is adhered to the sachets.
  • An automated dispensing machine using the webs of the invention may suitably comprise a transport mechanism that passes sequentially through three stations.
  • a sachet separated from a selected one of several webs (for different types of beverages) is advanced into the transport mechanism.
  • the sachet which is no longer hermetically sealed, is carried to a dispensing station where liquid, usually hot water, is injected into it and the resulting beverage escapes from the discharge opening into a dispensing cup.
  • the spent sachet is carried to a waste station where it is discarded.
  • Figure 1 is a plan view of a web of a first embodiment of the invention with one of the labels between adjoining sachets removed,
  • Figure 2 is a plan view of a web of a second embodiment of the invention.
  • Figure 3 is a section through one of the sachets of the web of Figure 1 during a dispensing operation
  • Figure 4 is a section similar to that of Figure 3 through one of the sachets of the web of Figure 2 during a dispensing operation.
  • the portion of the continuous web 10 shown in Figure 1 comprises three sachets 12, 14 and 16 which are suitable for beverages made from coarser particulate materials such as dried leaves for making tea or other infusions. They can also be used for instant beverages made from a particulate material that is fully soluble.
  • Each sachet is formed of two sheets, designated 11 and 13 in Figure 3, which are bonded to one another around the entire periphery (or at least three sides) of each sachet to form a pocket.
  • a spacer 18 is bonded to the two sheets 11 and 13.
  • the spacer 18 is annular and has a central chamber into which a liquid can be injected by a needle passing through one of the sheets 11, 13.
  • the spacer also has radial passages through which the injected liquid can be distributed, as designated by the arrows in Figure 3, to all parts of the interior of the sachet to permeate the particulate material 26 in the sachet.
  • Each of the sheets 11,13 is formed of a laminated plastics material having an inner layer of a material such as polypropylene that can be heat welded and a stronger liquid impervious outer layer made of a material such as a polyester.
  • the sheets may have further layers, if desired, and may, for example, include a metallic layer.
  • a discharge opening is formed by an array 20 of fine holes in at least one of the two sheets 11,13 through which liquid can be discharged from the sachet after the beverage has brewed or the particulate material has dissolved.
  • the holes can be formed either by piercing the sheet or by means of a laser.
  • the individual sachets are connected to one another to form a web by means of labels 22 that are applied to both sides of the sachets.
  • the labels 22 have an adhesive applied only around their periphery and are adhered to both of the sheets 11,13.
  • the web 10 is shown with the label that connects the individual sachets 12 and 14 removed to expose the array 20 of fine holes.
  • the array of holes 20 is covered by the labels 22 so that the sachet remains hermetically sealed.
  • the labels 22 are cut or torn to separate a sachet from web, the sachet is no longer sealed and liquid injected into the sachet through the spacer 18 can escape from the sachet through the array of holes in the manner represented by the arrows in Figure 3.
  • the label 22 remains stuck to the sachet, it acts as a flap which prevents liquid from spraying out of the sachet. Instead the beverage is channelled between the flap and sachet and drops cleanly into a dispensing cup placed below the sachet.
  • the web of Figure 1 is stored in a dispensing machine either as a roll or as a fan fold.
  • the side edges of the web 10 have sprocket holes which are either formed in the sheets 11, 13 or in tapes that are adhered to the individual sachets.
  • the sachets 12 to 16 are connected to one another by means of the labels 22 which also act to ensure that all the sachets remain hermetically sealed.
  • an indexing mechanism having a tractor feed is used to advance the web by means of the sprocket holes by a distance corresponding to the length of one sachet.
  • the advanced sachet is then separated from the web by cutting through the labels 22 that attach the sachet to the next sachet in the web.
  • the individual sachet is transported to a dispensing station in which it is held vertically above an opening.
  • a liquid, usually hot water, is injected into the sachet, passes through the particulate material in the sachet and leaves through the array of holes 20 to fall through the opening in the dispensing machine into a cup.
  • the sachet is removed from the dispensing station and transported to a waste station where the spent sachets are stored for subsequent disposal.
  • the array of holes 20 is not particularly well suited to certain beverages, such as coffee, that are made from finely ground powder. With such beverages, it is preferred to use a filter material, that is adhered to the interior of the sachet.
  • FIG. 2 and 4 An embodiment that uses filter paper is shown in Figures 2 and 4, where the ground coffee powder 126 is shown as being retained by filter material 115, such as a fine fabric mesh or filter paper.
  • the filter material 115 is shown as being gusseted to provide a larger surface area for the liquid to percolate through the powder 126, but this is not essential.
  • a sachet 112 When a sachet 112 is provided with a filter material that prevents the particulate material from escaping from the sachet, it remains possible to attach the sachets to one another by means of labels that must be cut to separate each sachet from the web. It is however also possible in this case to dispense entirely with the labels and to form the sachets such that the sheets 111, 113 are made from continuous stock. In this case, a sachet 112 is separated from the web by cutting through the sheets 111, 113. By cutting through the sheets, a discharge opening is formed to permit liquid introduced into the sachet 112 through the spacer 118 to leave the sachet after passing through the particulate material 26 and the filter 15.
  • FIG. 2 and 4 requires an additional weld line 122 at the top of each sachet to ensure that the next sachet 114 in the web remains hermetically sealed after the sachet 112 has been severed from the web along the line 120.
  • the band 127 at the top of each sachet between the lines 120 and 122 need not be hermetically sealed, it may conveniently be formed with holes 123 from which the sachet can be suspended while a beverage is being dispensed. If the holes 123 are formed as elongate slots the sachet will hang straight even when the beverage material in it is unevenly distributed.
  • Figure 2 also shows that it is possible to incorporate a funnel at the bottom of each sachet by forming two further inclined weld lines 125 beneath the filter material 115. It is important to note in this case that the interior of the funnel is also hermetically sealed until the sachet 112 is removed from the web.

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

Abstract

La présente invention concerne une bande continue (10) qui est composée d'une chaîne de sachets interconnectés (12, 14, 16). Chaque sachet (12) est formé de deux feuilles de matériau imperméable (11, 13) reliées l'une à l'autre de manière à définir une poche contenant un matériau particulaire à partir duquel une boisson peut être produite par introduction d'un liquide dans cette poche. Chaque sachet, lorsqu'il est détaché de la bande, présente également une ouverture de distribution permettant de distribuer la boisson de la poche. La connexion entre les sachets (12, 14, 16) est telle que l'ouverture de distribution d'un sachet reste hermétiquement scellée lorsque le sachet (12) est relié au sachet suivant (14) de la bande (10), mais, lorsque le sachet (12) est détaché de la bande (10), le joint est rompu afin de permettre la distribution de la boisson du sachet.
PCT/GB2003/003708 2002-08-30 2003-08-28 Sachets interconnectes concus pour permettre a un liquide de passer a travers les contenus WO2004020308A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU2003259364A AU2003259364A1 (en) 2002-08-30 2003-08-28 Interconnected sachets adapted to allow liquid to pass through the contents.

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GB0220106A GB2392429A (en) 2002-08-30 2002-08-30 Web of sachets with openings sealed by interconnection means
GB0220106.9 2002-08-30

Publications (2)

Publication Number Publication Date
WO2004020308A1 true WO2004020308A1 (fr) 2004-03-11
WO2004020308A8 WO2004020308A8 (fr) 2005-03-24

Family

ID=9943170

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2003/003708 WO2004020308A1 (fr) 2002-08-30 2003-08-28 Sachets interconnectes concus pour permettre a un liquide de passer a travers les contenus

Country Status (3)

Country Link
AU (1) AU2003259364A1 (fr)
GB (1) GB2392429A (fr)
WO (1) WO2004020308A1 (fr)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0423553D0 (en) * 2004-10-22 2004-11-24 Kraft Foods R & D Inc Flexible pad for preparing a beverage
WO2008034168A1 (fr) * 2006-09-18 2008-03-27 Hofesh Enterprises Pty Ltd Sachet
FR2985245B1 (fr) * 2011-12-28 2014-08-29 Seb Sa Ensemble et dosette pour la preparation de boisson infusee

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746770A (en) * 1981-06-18 1982-03-17 Tamotsu Itasaka Coffee extracting bag doubling as packing bag
DE8402282U1 (de) * 1984-01-27 1984-03-15 Glathe, Peter Einrichtung zur Aufnahme von mit Fluessigkeiten extrahierbaren Materialien
JPH04142266A (ja) * 1990-09-21 1992-05-15 Apex:Kk 飲料抽出用パック

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB9715921D0 (en) * 1997-07-28 1997-10-01 Mars Uk Ltd Beverage-producing packages

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5746770A (en) * 1981-06-18 1982-03-17 Tamotsu Itasaka Coffee extracting bag doubling as packing bag
DE8402282U1 (de) * 1984-01-27 1984-03-15 Glathe, Peter Einrichtung zur Aufnahme von mit Fluessigkeiten extrahierbaren Materialien
JPH04142266A (ja) * 1990-09-21 1992-05-15 Apex:Kk 飲料抽出用パック

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
PATENT ABSTRACTS OF JAPAN vol. 016, no. 422 (M - 1305) 4 September 1992 (1992-09-04) *

Also Published As

Publication number Publication date
AU2003259364A1 (en) 2004-03-19
WO2004020308A8 (fr) 2005-03-24
GB2392429A (en) 2004-03-03
GB0220106D0 (en) 2002-10-09

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