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WO1992015500A1 - Sachet pour infusions et systeme de protection - Google Patents

Sachet pour infusions et systeme de protection Download PDF

Info

Publication number
WO1992015500A1
WO1992015500A1 PCT/AU1992/000078 AU9200078W WO9215500A1 WO 1992015500 A1 WO1992015500 A1 WO 1992015500A1 AU 9200078 W AU9200078 W AU 9200078W WO 9215500 A1 WO9215500 A1 WO 9215500A1
Authority
WO
WIPO (PCT)
Prior art keywords
pouch
cover
infusible
leaf
web
Prior art date
Application number
PCT/AU1992/000078
Other languages
English (en)
Inventor
Hugh Patrick Christie
Allan Kenneth Wallace
Original Assignee
Hugh Patrick Christie
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 Hugh Patrick Christie filed Critical Hugh Patrick Christie
Priority to US08/108,607 priority Critical patent/US5478581A/en
Priority to AU13401/92A priority patent/AU651443B2/en
Publication of WO1992015500A1 publication Critical patent/WO1992015500A1/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
    • 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
    • B65D85/808—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags
    • B65D85/8085—Disposable containers or packages with contents which are mixed, infused or dissolved in situ, i.e. without having been previously removed from the package for immersion in the liquid to release part or all of their contents, e.g. tea bags characterised by an outer package, e.g. wrappers or boxes for enclosing tea-bags
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65B—MACHINES, APPARATUS OR DEVICES FOR, OR METHODS OF, PACKAGING ARTICLES OR MATERIALS; UNPACKING
    • B65B29/00—Packaging of materials presenting special problems
    • B65B29/02—Packaging of substances, e.g. tea, which are intended to be infused in the package
    • B65B29/028—Packaging of substances, e.g. tea, which are intended to be infused in the package packaging infusion material into filter bags

Definitions

  • This invention relates to an infusible pouch and cover therefore, and also to a method and apparatus for the production of the pouch and cover.
  • infusible pouch or bag and cover In my earlier Patent No. 575226 there is described an infusible pouch or bag and cover.
  • the infusible bag is attached at a central part of one edge of the bag to one leaf of a cover adjacent the hinge line joining the two covers made from a single sheet of cover material.
  • the bag which may be a tea bag or other infusible bag, when in use is positioned on the rim of a cup with the bag hanging down the inside of the cup.
  • the leaf to which the bag is attached passes down the outside of the cup with the bag, due to the central attachment of the cover, generally conforming to the inside curvature of the cup.
  • the other leaf is pivoted about the hinge line up to 270 to 360 degrees to thus extend away from the cup in a cantilever fashion to balance and thus support the bag in position.
  • the other leaf has to be swung away from the closed position up to nearly 360 degrees to thus stabilize and wedge the bag on the edge of the cup.
  • the present invention has resulted as a result of the need to produce a cover for such a larger bag or pouch.
  • problems arose in the folding of the cover strip back on itself due to the very flexible nature of the material used for it often did not fold correctly back over the bag or pouch.
  • this larger bag had user problems as it is more difficult to hold. It has been found that if a portion of the cover is in the form of a portion to be grasped, in the form of a handle that the pouch and cover after infusion of the substance, is much easier for the user to dispose of the pouch and cover. This handle is also of great advantage for the user when produced for the smaller tea bags also.
  • the present invention overcomes the problems associated with the production of larger bags, and while the present invention is suitable for the larger bags and covers, it is also applicable to the smaller tea bags and results in a tea bag and cover with added advantages.
  • an object of this invention to provide an infusible bag and cover in which a portion is provided in the form of a handle to improve ease of use by the user, particularly for larger infusions such as coffee bags. Also it is a further object of this invention to provide an infusible bag and cover in which the free leaf does not have to pivot about its hinge line to the extent required by the above discussed product.
  • an infusible pouch and cover the infusible pouch containing an infusible substance such as coffee or tea
  • the cover being formed of two leaves joined along a pair of adjacent edges, each of the leaves having a hinge line adjacent to and spaced from the joined pair of edges, the pouch being joined along a central portion of one of its edges to one of the leaves adjacent its respective hinge line so that the pouch can be inserted down the inside edge of a cup with a wedging action on the pouch, with one leaf extending down the outside of the cup, characterised in that the two leaves are joined together over an area extending from adjacent the attachment of the pouch to said one leaf to the adjacent edge of the leaves to thus form a portion in the form of a handle to be grasped by the user.
  • the free other leaf is pivoted about its hinge and the pair of joined edges pivot about the hinge of said one leaf so that the combined angular pivoting of each leaf about its respective hinge line is sufficient for the leaf to which the bag is not attached to be swung at an angle greater than 180 degrees relative to the leaf to which the bag is attached.
  • each leaf Preferably in use the combined angular pivoting of each leaf about its respective hinge is sufficient for the leaf to which the bag is not attached to be swung at an angle less than 180 degrees relative to the leaf to which the bag is attached. Thus each leaf would swing or pivot less than 180 degrees.
  • the interior of the sealed cover may be evacuated and/or purged with an inert gas to assist in the preservation of the contents.
  • portion of the two leaves extending beyond the crease or pivot line of the leaves can be used as a portion to be grasped to assist in the ease of handling of the infusible bag and cover whereby the leaves may be folded over against the infusible bag so that the excess liquid may be squeezed from the contents of the pouch and disposed of while holding this portion of the cover.
  • a method of forming an infusible pouch and cover comprising the steps of orientating and positioning the pouch on a first web of material, attaching an infusible pouch containing an infusible substance by an edge of the pouch centrally of the cover, positioning a second web of cover material over the pouch and the first web of cover material, joining the two webs together adjacent said edge of the pouch, forming a hinge line in each of the webs of cover material adjacent said edge of the pouch joined to the first web of cover material, and severing said webs to form individual envelopes each containing an infusible pouch.
  • the method includes the step of sealing or joining the cover around each of the edges of the cover.
  • the method includes the step of purging the space between the cover before sealing around the edges and or flushing with an inert gas.
  • an apparatus for forming an infusible pouch and cover including positioning means to position and orientate a pouch on a first web of cover material, attaching means to attach the pouch containing an infusible substance by an edge of the pouch centrally of the web, feeding means to position a second web of cover material over the pouch and the first web of cover material, joining means to join the two webs together adjacent said edge of the pouch, creasing means to form a hinge line in each of the webs of cover material adjacent the said edge of the pouch joined to the first web of cover material, and cutting means to sever the webs to form individual envelopes each containing an infusible pouch.
  • FIG. 1 is an isometric view of one form of an infusible pouch and cover
  • FIG. 2 is a front view of the embodiment of FIG. 1 ,
  • FIG. 3 is a side view of the embodiment of FIG. 1 .
  • FIG. 4 is a front view of a second form of the invention.
  • FIG. 5 is a cross sectional view of the embodiment of FIG. 4,
  • FIG. 6 shows one form of apparatus for carrying out the invention
  • FIG. 7 shows another form of apparatus for carrying out the invention.
  • the combined cover and pouch 1 comprises a first leaf 2 and a second leaf 3 which are sealed or joined together by a weld or seal 4 along one of their adjacent edges.
  • the pouch 5 containing an infusible substance is attached to the second leaf 3 by its edge 6 by means of a staple 7.
  • the attachment can also be by means of a heat seal, weld or adhesive.
  • the edge 6 is attached centrally thereof to the leaf so that the pouch is attached by a central portion or location centrally of the edge and also centrally of the leaf.
  • the leaves 2 and 3 are each provided with a respective hinge line 8 and 9, and that portion of the hinge lines and in the area of the seal forms a portion 10 which is easily grasped by the user to manipulate the cover and the infusible bags. This is later described in more detail.
  • this can be any suitable container to hold the liquid in which the substance in the pouch is to be infused.
  • the pouch will be positioned inside a cup down the inside edge thereof and supported on the edge of the cup with the second leaf 3 hanging down the outside of the cup.
  • the first leaf 2 is then swung up and away from the cup and pivots about the portion 10 by the hinge 8, and at the same time the portion 10 will also pivot about the hinge 9 connecting the portion 10 to the leaf 3.
  • neither leaf need pivot more than 180 degrees, and as the hinge lines in the leaves will preferably be formed with a creasing tool.
  • This limited pivoting is of advantage, for when card, plastics material or coated card is creased, due to the resilience of the material particularly when the leaves are pivoted more than 180 degrees there is a tendency for the leaves to swing back to the straight position.
  • the portion 10 can be grasped to lift it from the cup and the first leaf 2 folded over the pouch so that the leaves can be squeezed together to remove the excess fluid from the contents of the pouch.
  • the fingers of the user are kept away from the liquid which usually is hot, and is easy then to handle the cover and pouch for disposal.
  • FIGS. 4 and 5 there is shown a further form of the invention in which the side edges and the bottom edge of the leaves 2 and 3 are sealed by a seal 11 which is a releasable seal so that the leaves may be separated to allow the pouch to be inserted into a cup as above described.
  • the side edges and the bottom edge are sealed to prevent deterioration of the infusible substance for instance by exposure to the atmosphere.
  • the seal area 11 may be removed from the leaves 2 and 3 by tear-off strips, in which instance the seal 11 need not comprise a releasable adhesive.
  • FIGS. 4 and 5 can be formed of the two separate leaves as described in relation to FIGS. 1 to 3, however as shown in FIG. 5, the two leaves 2 and 3 are formed from the same sheet of cover material.
  • the leaves are formed by folding the sheet material so that the leaves are joined by a fold 12 and the two portions of the leaves adjacent the fold are then attached to each other.
  • This attachment can be by staples, by heat sealing or gluing to thus form the portion 10 which has a similar function to that described above.
  • the portion 10 will be relatively firm or rigid to thus provide a convenient portion or handle to manipulate the pouch and cover.
  • Each of the leaves is creased or otherwise formed to have the hinges 8 and 9 at the edge of the portion 10 and the pouch 5 is attached to the leaf 3 as above described.
  • each of the leaves 2 and 3 are pivotable about their hinges to the portion 10, each thus pivoting less than 180 degrees to the positions which generally would be when positioned on a cup.
  • FIG. 6 One form of machine to form the envelopes comprising the cover and the infusible pouch is shown schematically in FIG. 6.
  • the pouch 20 is positioned on a feed conveyor 21 which passes the pouches onto a vibrating pouch straightener 22 to correct the variable positioning of the pouches.
  • the pouches may be fed onto the conveyor direct from a pouch making machine 23, a knife 24 separating the pouches before they are positioned on the conveyor 21.
  • the vibrating straightener 22 is provided in order to tolerate the variable positioning of the dropped pouch.
  • the pouch is dropped onto a static sloping table 25 so that it slips until it touches a ledge 26.
  • the ledge 26 oscillates laterally to work the pouch into correct orientation and registration against itself. Sidewalls attached to the ledge 26 register the sides of the pouch at the extreme inner position of their travel. It will be realised that other forms of transfer and positioning means can be used as is well known in the art.
  • the pouches 20 are then positioned on a lower web of cover material 27 by a vacuum transfer finger 28 which picks up the correctly orientated pouch 20 and positions it on the lower cover web 27.
  • a vacuum transfer finger 28 which picks up the correctly orientated pouch 20 and positions it on the lower cover web 27.
  • the pouch is attached to the web 27 by a heat sealing tool 29 which attaches the pouch 20 by an edge to the web 27 of cover material centrally of the edge.
  • the upper web of cover material 30 is then positioned over the attached pouch and the lower web, which then pass into the primary sealer 31 which seals both ends and most of the sides of the envelope to be formed.
  • the webs and pouch then pass to the next station which is the air extraction and final seal chamber 32.
  • This chamber 32 is connected to a vacuum pump 33 and also has sealing members 34 to seal the unsealed portion of the sides of the cover when the air has been extracted from the cover and thus the pouch.
  • the webs and pouch pass to a hinge forming tool 35 which has a radiused crushing end to crush the webs against an elastomeric backing to form the hinge in both so formed leaves.
  • the movement of the webs through the machine is provided by a feed roller 36 and pressure roller 37 following which the individual envelopes are separated by a knife 39.
  • the upper web of material could be printed in which case the upper and lower systems would be interchanged.
  • the lower web can be printed, either in specific areas, or randomly or all over the web. If it is printed in one portion only, then registration of the two sheets of covers would be required.
  • one or both webs could be notched with either an angular notch or curved notch at the end of each produced cover so that the cover would have cut off or rounded corners. In this case instead of there being a print detector, there can be an optical or mechanical detector to detect the passage of each notch to thus control the feed.
  • the twoleaves need only be joined along one transverse line, or alternatively along one longitudinal edge, as long as the two separate leaves are joined together.
  • the pouches may be positioned across the first web of material and the attachment of the pouch to the web of cover material may be adjacent to edge of the web instead of as above described, centrally of the web.
  • FIG. 7 there is shown a further embodiment of the invention in which the second web of cover material is formed by a portion of the first web of cover material being folded back over itself.
  • the web 40 has the infusible pouch 41 positioned on one side of the web 40, such as by a vacuum transfer finger 42, the pouch then being attached to the web centrally of the pouch and web by a pouch attach member 43.
  • the pouch may be attached by an edge of the pouch which is transverse of the web such as the leading edge as shown, or in an alternate form the pouch may be attached by the edge which is longitudinal of the web and preferably by the edge nearest the centre of the web.
  • a folding plough 44 folds over the web so that the folded over portion overlies the other portion of the web and the pouch.
  • the folded over portion is then passed under a creasing roller 45. If the formed envelope is to completely enclose the pouch the web and pouch then pass to a primary sealing unit 46 and then to an extraction or flushing unit 47 where the final sealing also takes place.
  • the creasing of the covers may take place as above described in relation to Figure 6
  • the web may be severed to form the individual units of pouches and covers.
  • the cover web may be pre-creased by a pre-creasing roller 48.
  • the cover material comes from a single reel with the print sychronisation system as described above.
  • the pre-creasing roller crushes the cover material along the longitudinal fold line. This pre-creasing could occur at any position upstream of the folding plough, including the final delivery roller as shown, or perhaps more conveniently at the drive roller which feeds the slack loop as described in the previous embodiment.
  • the upper cover portion is ploughed over a length to suit the cover material.
  • a following creasing roller is shown to complete the fold before the product enters the primary sealing station.
  • an infusible pouch and cover in which the pouch can be hung on the edge of a cup, the pouch extending down the inside of the cup, one leaf of the cover extending down the outside of the cup, and the other leaf extended back away from the pouch to assist in stabilising the pouch and cover on the cup edge.
  • the pouch is attached to one of the leaves, and the portion of the leaves extending beyond the attachment point are joined together, with each leaf being pivotable to this extending portion.
  • each leaf of the cover is independently pivoted to the extending portion so that the extended portion can pivot relative to the leaf extending down the outside of the cup, and the other leaf can thus also pivot relative to the extended portion.
  • the cover may be formed from two separate strips of cover material, or from a single strip which is folded back over the pouches by a plough as.described in FIG. 7.
  • this extended portion thus forms a convenient portion to be grasped by the user, thus in effect ' forming a handle.

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

Abstract

Le sachet ainsi que son système de protection (1) comportent un premier volet (2) et un deuxième volet (3) solidarisés par une soudure ou une fixation (4). Le sachet (5) contenant une substance à infuser est fixée au milieu du deuxième volet (3) par une agrafe (7). Chacun des volets (2, 3) présente une ligne d'articulation (8, 9) de sorte qu'une partie située dans la zone de la fixation (4) sert de poignée (10) qui peut être saisie aisément par l'utilisateur pour serrer le sachet (1) afin d'en extraire le liquide superflu et pour jeter le sachet avec son système de protection (1). Lors de son utilisation, le sachet est placé dans une tasse, de manière à jouxter le rebord intérieur de celle-ci, et est maintenu sur le rebord de la tasse, le deuxième volet (3) restant suspendu à l'extérieur de la tasse. Le premier volet (2) est alors remonté pour l'éloigner de la tasse et pivote autour de la partie (10) grâce à la charnière (8) et en même temps la partie (10) pivote autour de la charnière (9) qui relie la partie (10) au volet (3) de manière que ni l'un ni l'autre doive pivoter de plus de 180 degrés. Un procédé et un appareil sont également décrits qui permettent de produire ledit sachet à infusion ainsi que son système de protection (1).
PCT/AU1992/000078 1991-02-27 1992-02-26 Sachet pour infusions et systeme de protection WO1992015500A1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
US08/108,607 US5478581A (en) 1991-02-27 1992-02-26 Infusible pouch and cover
AU13401/92A AU651443B2 (en) 1991-02-27 1992-02-26 Infusible pouch and cover

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
AUPK4842 1991-02-27
AUPK484291 1991-02-27
AUPK712091 1991-07-10
AUPK7120 1991-07-10

Publications (1)

Publication Number Publication Date
WO1992015500A1 true WO1992015500A1 (fr) 1992-09-17

Family

ID=25644011

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/AU1992/000078 WO1992015500A1 (fr) 1991-02-27 1992-02-26 Sachet pour infusions et systeme de protection

Country Status (2)

Country Link
NZ (1) NZ241772A (fr)
WO (1) WO1992015500A1 (fr)

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466474A (en) * 1991-10-09 1995-11-14 A.G. (Patents) Limited (British Company) Method and apparatus for manufacturing infusion packages
WO1996023713A1 (fr) * 1995-02-03 1996-08-08 Henrik Kurt Christensen Emballage jetable pour la production de boissons, en particulier de the, et son procede de fabrication
WO1997041032A3 (fr) * 1996-04-30 1997-12-24 Ferruccio Carmelo Calvano Procede et appareil de conditionnement de sachets de the
EP1818264A1 (fr) * 2006-02-10 2007-08-15 TECNOMECCANICA S.r.l. Procédé et dispositif d'emballage à haute cadence pour sachet-filtre pour produits à infuser
CN109305466A (zh) * 2017-07-28 2019-02-05 国誉株式会社 涂布产品

Citations (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192605A (en) * 1939-03-30 1940-03-05 Iers Lee Company Infusion package
US2728670A (en) * 1954-05-04 1955-12-27 Pakko Lab Inc Porous container of a dry infusion commodity and cover combination
US2728671A (en) * 1954-08-26 1955-12-27 Pakko Lab Inc Porous container of a dry infusion commodity and cover combination
US2728672A (en) * 1955-04-14 1955-12-27 Young Julius Porous container of a beverage infusion commodity and vessel cover package combination
US3387978A (en) * 1964-10-22 1968-06-11 Emery Major Infusion package
US3895118A (en) * 1972-07-26 1975-07-15 Adolf Rambold Infusion bag
CH563756A5 (en) * 1973-05-07 1975-07-15 Sig Schweiz Industrieges Tea bag with protective cover - allows tea bag to be supported on rim of cup and suspended over middle
AU575226B2 (en) * 1984-11-20 1988-07-21 Hugh Patrick Christie Tea bag with a protective cover
AU587550B2 (en) * 1986-05-15 1989-08-17 Hugh Patrick Christie Method of and apparatus for producing infusible bag holders
US4875574A (en) * 1989-02-24 1989-10-24 Travers Barbara E Infusion package
GB2229991A (en) * 1988-12-22 1990-10-10 Tea Council Limited Infusion packages
AU617202B2 (en) * 1988-07-11 1991-11-21 Hugh Patrick Christie Producing covered infusion bags

Patent Citations (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2192605A (en) * 1939-03-30 1940-03-05 Iers Lee Company Infusion package
US2728670A (en) * 1954-05-04 1955-12-27 Pakko Lab Inc Porous container of a dry infusion commodity and cover combination
US2728671A (en) * 1954-08-26 1955-12-27 Pakko Lab Inc Porous container of a dry infusion commodity and cover combination
US2728672A (en) * 1955-04-14 1955-12-27 Young Julius Porous container of a beverage infusion commodity and vessel cover package combination
US3387978A (en) * 1964-10-22 1968-06-11 Emery Major Infusion package
US3899599A (en) * 1972-07-26 1975-08-12 Adolf Rambold Infusion bag, particularly for tea
US3895118A (en) * 1972-07-26 1975-07-15 Adolf Rambold Infusion bag
CH563756A5 (en) * 1973-05-07 1975-07-15 Sig Schweiz Industrieges Tea bag with protective cover - allows tea bag to be supported on rim of cup and suspended over middle
AU575226B2 (en) * 1984-11-20 1988-07-21 Hugh Patrick Christie Tea bag with a protective cover
AU587550B2 (en) * 1986-05-15 1989-08-17 Hugh Patrick Christie Method of and apparatus for producing infusible bag holders
AU617202B2 (en) * 1988-07-11 1991-11-21 Hugh Patrick Christie Producing covered infusion bags
GB2229991A (en) * 1988-12-22 1990-10-10 Tea Council Limited Infusion packages
US4875574A (en) * 1989-02-24 1989-10-24 Travers Barbara E Infusion package

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5466474A (en) * 1991-10-09 1995-11-14 A.G. (Patents) Limited (British Company) Method and apparatus for manufacturing infusion packages
WO1996023713A1 (fr) * 1995-02-03 1996-08-08 Henrik Kurt Christensen Emballage jetable pour la production de boissons, en particulier de the, et son procede de fabrication
WO1997041032A3 (fr) * 1996-04-30 1997-12-24 Ferruccio Carmelo Calvano Procede et appareil de conditionnement de sachets de the
EP1818264A1 (fr) * 2006-02-10 2007-08-15 TECNOMECCANICA S.r.l. Procédé et dispositif d'emballage à haute cadence pour sachet-filtre pour produits à infuser
US7434374B2 (en) 2006-02-10 2008-10-14 Tecnomeccanica S.R.L. Method and line for the high-speed packaging of filter bags containing an infusion product
CN109305466A (zh) * 2017-07-28 2019-02-05 国誉株式会社 涂布产品
CN109305466B (zh) * 2017-07-28 2021-11-02 国誉株式会社 涂布产品

Also Published As

Publication number Publication date
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