US20030131565A1 - Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag - Google Patents

Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag Download PDF

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Publication number
US20030131565A1
US20030131565A1 US10/341,570 US34157003A US2003131565A1 US 20030131565 A1 US20030131565 A1 US 20030131565A1 US 34157003 A US34157003 A US 34157003A US 2003131565 A1 US2003131565 A1 US 2003131565A1
Authority
US
United States
Prior art keywords
tag
thread
containment chamber
pick
filter bag
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.)
Abandoned
Application number
US10/341,570
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English (en)
Inventor
Andrea Romagnoli
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.)
Tecnomeccanica SRL
Original Assignee
Tecnomeccanica SRL
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 Tecnomeccanica SRL filed Critical Tecnomeccanica SRL
Assigned to TECNOMECCANICA S.R.L. reassignment TECNOMECCANICA S.R.L. ASSIGNMENT OF ASSIGNORS INTEREST (SEE DOCUMENT FOR DETAILS). Assignors: ROMAGNOLI, ANDREA
Publication of US20030131565A1 publication Critical patent/US20030131565A1/en
Priority to US10/780,958 priority Critical patent/US7021025B2/en
Abandoned legal-status Critical Current

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Classifications

    • 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
    • B65B29/04—Attaching, or forming and attaching, string handles or tags to tea bags
    • 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
    • B65D85/812—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 with features facilitating their manipulation or suspension

Definitions

  • the present invention relates to the automatic packaging of a substance for infusion, such as tea, chamomile, or similar herbal products, in paper filter bags, designed to be immersed in a liquid to prepare the infusion.
  • a substance for infusion such as tea, chamomile, or similar herbal products
  • the present invention relates to a filter bag with a special structure and the method for its production.
  • filter bags made of heat-sealable filter paper using the conventional method are heavier than bags of the same size and shape in which the chambers which hold the doses of product are obtained by folding alone.
  • said thread length may be insufficient to prevent the tag from accidentally slipping over the edge of the infusion container during infusion and falling into the infusion liquid, with obvious consequences in terms of hygiene and/or pick-up tag recovery.
  • bags made of heat-sealed paper using the known method at the production step also involve the use of a blob of adhesive—normally Mylar®, which, attached to the thread and the bag, allows them to be held together in a compact structure, preventing the tag from dangling freely from the bag.
  • a blob of adhesive normally Mylar®
  • the material used for the blob of adhesive has its own cost, which disadvantageously increases the overall cost of the filter bag.
  • Other costs are also related to the complex construction of the packaging machines which require a purpose-designed unit for the adhesive for the bag.
  • the main aim of the present invention is to overcome the aforementioned disadvantages by providing a bag made of heat-sealable paper which is designed in such a way that it has a section of connecting thread whose length is not related to the length of the outline of the filter bag.
  • Another aim of the present invention is to eliminate the need for Mylar, making the filter bag even more economical and the equipment used to make it less complex and expensive.
  • a filter bag for containing a substance for infusion in a liquid comprising a containment chamber, with at least one compartment for holding a dose of the substance which is sealed by top and bottom joins; a tag for picking up the bag; and a section of thread, wound around the outside of the containment chamber and extending along an outline, one end of the thread being connected to the pick-up tag and the other end connected to the top of the containment chamber, and wherein the section of thread is longer than the outline of the containment chamber to which it is attached, the excess length of the section of thread relative to said outline being gathered on the outside of the containment chamber for the substance for infusion.
  • the present invention also refers to a method for producing the bag.
  • FIG. 1 is an enlarged side assembly view of a bag made in accordance with the present invention
  • FIG. 2 is a front view of the bag illustrated in FIG. 1;
  • FIG. 3 is a detail of the bag illustrated in FIG. 1 seen from the side opposite that in FIG. 2;
  • FIGS. 4 through 13 are schematic views of the succession of steps embodying the method for production of the bag illustrated in FIGS. 1 - 3 .
  • FIG. 1 illustrates as a whole a filter bag 1 for containing a substance for infusion in a liquid, such as tea, chamomile or other herbal products, which basically comprises a chamber 2 for containing the substance and a tag 6 for manually picking up and holding the containment chamber 2 during infusion, connected to one another by a section of thread 7 .
  • a filter bag 1 for containing a substance for infusion in a liquid, such as tea, chamomile or other herbal products, which basically comprises a chamber 2 for containing the substance and a tag 6 for manually picking up and holding the containment chamber 2 during infusion, connected to one another by a section of thread 7 .
  • the containment chamber 2 has two separate compartments 3 for doses of the substance, which are connected to one another at a top join 4 and a bottom join 5 .
  • the compartments 3 are set opposite one another, overlap and are connected by a folded base 14 which is “V”-shaped, with the narrow base of the V pointing upwards towards the inside of the containment chamber 2 .
  • the section of thread 7 is wrapped around the outside of the containment chamber 2 . It extends along an outline of the chamber and one end of the thread is connected to the pick-up tag 6 , whilst the other end is connected to the top 15 of the containment chamber 2 .
  • the section of thread 7 is longer than the outer outline of the containment chamber 2 to which it is attached.
  • the excess length 8 of thread 7 relative to the length of the outline is looser than the rest of the section of thread 7 which, in contrast, is pulled taut along the outline of the containment chamber 2 and is gathered, on the outside of the containment chamber 2 for the substance for infusion, in the form of one or more first winding loops 10 attached to the pick-up tag 6 .
  • FIGS. 1 and 2 illustrate in particular that the pick-up tag 6 includes two flaps 9 a, b , folded over one another by rotation about a shared edge 35 , parallel with the section of thread 7 wound around the outline of the bag 1 .
  • the excess length 8 of the section of thread 7 is held between these flaps 9 a, b.
  • the pick-up tag 6 preferably has a layer of adhesive material on the faces of the flaps 9 a and b facing the excess length 8 of thread, which can be activated by suitable heat, so that the flaps 9 a, b of the tag 6 stick together and hold the excess length 8 of the section of thread 7 there gathered tightly and in an orderly fashion.
  • This hold sufficient to prevent any change in the state of the package during handling, is removable and can be overcome by applying a small amount of pulling force to the section of thread 7 outside the tag 6 to unwind the first loop(s) 10 and allow the consequent extraction of the excess length 8 of thread from the bag 1 pick-up tag 6 .
  • FIG. 2 also shows how the pick-up tag 6 is connected to the side wall 16 of the containment chamber 2 by a seal—labeled 13 —also obtained using a layer of heat-activated adhesive on one of the faces of the flap 9 a of the tag 6 flaps 9 a and b , that is, the one facing the containment chamber 2 .
  • the section of thread 7 also comprises a second loop 11 , housed in the compartment 3 of the containment chamber 2 opposite and separate from the compartment 3 contiguous with the tag 6 .
  • This second loop 11 has diverging ends 12 a , 12 b which project from the compartment 3 .
  • One end 12 a goes towards the top 15 , the other 12 b towards the bottom 14 of the containment chamber 2 .
  • the end 12 a which goes towards the top 15 is gripped and secured between opposite faces of the compartment 3 which are sealed together to form the top join 4 —by heat activation of a layer of adhesive on the filter paper of which the walls of the compartment are made.
  • the end 12 b which goes towards the bottom 14 of the chamber projects through the side wall 16 opposite that on which the tag 6 is fixed, at a convenient slit 22 in the side wall 16 .
  • the aforementioned filter bag 1 is used for conventional infusion by manually picking up the tag 6 with the containment chamber 2 suspended from it.
  • the presence of the excess length 8 of thread gathered between the pick-up tag 6 flaps 9 a and b allows a change at the user's discretion in the actual distance between the tag 6 and the top 15 of the bag 1 , so that on each occasion the length of the section of thread 7 can be made compatible with the different sizes of cups or glasses in which the infusion is prepared. This is all possible without the risk of the pick-up tag 6 accidentally falling into the infusion liquid.
  • FIGS. 4 to 13 schematically illustrate the operating sequence consisting of the succession of steps for production of the filter bag 1 disclosed.
  • the production process involves the steps of feeding only three packaging materials along a predetermined feed direction 30 and parallel with one another in a suitable sequence.
  • These materials consist of a filter paper web 17 with a layer of heat-activated adhesive, a cotton thread 31 positioned longitudinally and opposite the filter paper web 17 , and a tag paper web 39 , from which a set of tags 6 is made in succession which are positioned along the filter paper web 17 at predetermined intervals 32 .
  • FIG. 4 shows how the tag paper web 39 being fed in the feed direction 30 is first creased lengthways along the middle of it in order to create on the web 39 a line 21 that can facilitate folding of the web 39 .
  • the paper web 39 is cut transversally, to form tags 6 with two separate coplanar flaps 9 a, b , separated from one another by the fold line 21 .
  • the process involves the step of forming on the thread 31 and with the aid of suitable fork means 40 , one or more first winding loops 10 gathered in succession one on top of another and designed to form a sort of hank of thread 31 positioned in front of one 9 a of the tag 6 open flaps 9 a and b.
  • the flap b of the tag 6 which is not in contact with the hank of thread 31 , is gradually folded about the fold line 21 and brought into position overlapping the other tag 6 flap 9 a . It is then sealed by heat-activation of the layer of adhesive material which, after folding, the two faces 9 a and b of the tag 6 hold opposite one another.
  • the filter paper web 17 which in the figure appears to be on top of the thread 31 with the tags attached—is cut in such a way as to make a slit 22 in the paper.
  • the thread 31 is forced to pass through the slit 22 —on the left of FIG. 7—over the filter paper web 17 to form the second loop 11 .
  • the loop 11 may be tightly secured to the filter paper by sealing, thanks to conveniently localized heat re-activation of the layer of adhesive material on the filter paper.
  • a seal may also be made which attaches the filter paper to the tag 6 below, including the hank of thread.
  • the process involves the steps of winding the filter paper web 17 over itself so that the edges 18 initially opposite one another are overlapping, to gradually form a filter paper tube 34 with the loop 11 inside its internal concave area. Then, before the tube 34 is definitively formed, two doses 19 of the substance for infusion are deposited on the web 17 one after another.
  • the process involves the step of connecting the longitudinal edges 18 of the tube 34 to one another by sealing, by heat activation of the layer of adhesive material on the filter paper.
  • the tube 34 is divided into separate compartments 3 , each containing a dose 19 of the substance for infusion.
  • the compartments 3 are created by making pairs of sealed transversal connections 20 , respectively upstream and downstream of the tag 6 . More specifically, these connections form the top join 4 and the bottom join 5 which seal the compartments 3 , also securing the thread 31 to the filter bag 1 containment chamber 2 .

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Apparatus For Making Beverages (AREA)
  • Extraction Or Liquid Replacement (AREA)
US10/341,570 2002-01-11 2003-01-13 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag Abandoned US20030131565A1 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US10/780,958 US7021025B2 (en) 2002-01-11 2004-02-18 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
ITB02002A000013 2002-01-11
IT2002BO000013A ITBO20020013A1 (it) 2002-01-11 2002-01-11 Busta filtro per contenimento di una sostanza da infusione con accumulo di filo associato alla etichetta di presa e metodo di formatura rela

Related Child Applications (1)

Application Number Title Priority Date Filing Date
US10/780,958 Division US7021025B2 (en) 2002-01-11 2004-02-18 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag

Publications (1)

Publication Number Publication Date
US20030131565A1 true US20030131565A1 (en) 2003-07-17

Family

ID=11439790

Family Applications (2)

Application Number Title Priority Date Filing Date
US10/341,570 Abandoned US20030131565A1 (en) 2002-01-11 2003-01-13 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag
US10/780,958 Expired - Fee Related US7021025B2 (en) 2002-01-11 2004-02-18 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag

Family Applications After (1)

Application Number Title Priority Date Filing Date
US10/780,958 Expired - Fee Related US7021025B2 (en) 2002-01-11 2004-02-18 Filter bag for containing a substance for infusion with the gathered thread attached to the pick up tag and the method for producing the bag

Country Status (13)

Country Link
US (2) US20030131565A1 (el)
EP (1) EP1327589B1 (el)
JP (1) JP4057431B2 (el)
KR (1) KR20030061299A (el)
CN (1) CN1301887C (el)
AR (1) AR038284A1 (el)
AT (1) ATE320985T1 (el)
CA (1) CA2415805A1 (el)
DE (1) DE60210041T2 (el)
ES (1) ES2260408T3 (el)
IT (1) ITBO20020013A1 (el)
TW (1) TWI250115B (el)
ZA (1) ZA200210237B (el)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050181073A1 (en) * 2002-01-24 2005-08-18 Euroconstruct, S.R.O. Method for production of plant extracts
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
US20130133292A1 (en) * 2010-07-07 2013-05-30 Thomas David Reid Ford Process and apparatus for producing packets
US20150291347A1 (en) * 2012-12-21 2015-10-15 I.M.A. Industria Macchine Automatiche S.P.A. Machine for making filter bags for infusion products

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITBO20020477A1 (it) 2002-07-23 2004-01-23 Tecnomeccanica Srl Apparato di preparazione ed alimentazione di materiali per confezionamento di una busta filtro per sostanze da infusione.
US20080078770A1 (en) * 2006-10-02 2008-04-03 Eric Thomas Insulated package insert apparatus and method
US20080250689A1 (en) * 2007-04-13 2008-10-16 Stacey Cohen Seeded Hangtag
USD961404S1 (en) 2021-01-07 2022-08-23 Veriant LLC Double tea bag
USD952286S1 (en) 2021-01-07 2022-05-24 Veriant LLC Tea bag

Family Cites Families (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2468464A (en) * 1946-02-07 1949-04-26 Ivers Lee Co Infusion package
US2490057A (en) * 1946-05-25 1949-12-06 Nat Urn Bag Co Inc Method of making an infusion package with a nontangling handle and tag
US2852389A (en) * 1954-08-06 1958-09-16 Bartelt Engineering Co Infusion package
US2869718A (en) * 1956-09-14 1959-01-20 Pneumatic Scale Corp Infusion bag
AT239134B (de) * 1961-07-11 1965-03-25 Guy John Olof Welin-Berger Aus einem Fadengewebe oder -geflecht bestehender Beutel
CH615124A5 (el) * 1978-01-11 1980-01-15 Sig Schweiz Industrieges
CH638740A5 (de) * 1979-06-26 1983-10-14 Sig Schweiz Industrieges Aufgussbeutel und verfahren zu dessen herstellung.
IT1187308B (it) * 1985-02-08 1987-12-23 Cestind Centro Studi Ind Sacchetto-filtro biuso per prodotti da infusione e metodo per produrlo
GB9026123D0 (en) * 1990-11-30 1991-01-16 Unilever Plc Tagged articles and method and apparatus for their production
GB9219657D0 (en) * 1992-09-17 1992-10-28 Unilever Plc Tagged articles
IT1279697B1 (it) * 1995-12-07 1997-12-16 Tecnomeccanica Srl Macchina per confezionamento di insiemi per infusione in un liquido nei quali un prodotto infusibile e' contenuto in una busta filtro in
DE59608145D1 (de) * 1996-05-07 2001-12-13 Teepack Spezialmaschinen Doppelkammer-Aufgussbeutel, insbesondere für Tee, und Verfahren zu seiner Herstellung
GB9722490D0 (en) * 1997-10-25 1997-12-24 Cambridge Consultants Improvements in and relating to tags and their attachment to products
IT1299331B1 (it) * 1998-01-30 2000-03-16 Ima Spa Sacchetto - filtro di tipo bi-lobo per prodotti da infusione.
PT1002741E (pt) * 1998-06-10 2001-12-28 Teepack Spezialmaschinen Saco de infusao de um compartimento em especial para cha e processo para o seu fabrico
IT1304448B1 (it) * 1998-12-24 2001-03-19 Ima Spa Sacchetto - filtro bilobo per prodotti da infusione.
JP2002211641A (ja) * 2001-01-15 2002-07-31 Fuso Sangyo Kk 吊り下げ用部材及び包材並びに包装体

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20050181073A1 (en) * 2002-01-24 2005-08-18 Euroconstruct, S.R.O. Method for production of plant extracts
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
US20130133292A1 (en) * 2010-07-07 2013-05-30 Thomas David Reid Ford Process and apparatus for producing packets
US9346569B2 (en) * 2010-07-07 2016-05-24 Conopco, Inc. Process and apparatus for producing packets
US20150291347A1 (en) * 2012-12-21 2015-10-15 I.M.A. Industria Macchine Automatiche S.P.A. Machine for making filter bags for infusion products
US9527663B2 (en) * 2012-12-21 2016-12-27 I.M.A. Industria Macchine Automatiche S.P.A. Machine for making filter bags for infusion products

Also Published As

Publication number Publication date
ITBO20020013A1 (it) 2003-07-11
US7021025B2 (en) 2006-04-04
ES2260408T3 (es) 2006-11-01
ZA200210237B (en) 2003-08-21
CA2415805A1 (en) 2003-07-11
TWI250115B (en) 2006-03-01
DE60210041T2 (de) 2006-10-12
TW200301747A (en) 2003-07-16
EP1327589B1 (en) 2006-03-22
ATE320985T1 (de) 2006-04-15
US20040161497A1 (en) 2004-08-19
JP4057431B2 (ja) 2008-03-05
EP1327589A2 (en) 2003-07-16
ITBO20020013A0 (it) 2002-01-11
CN1301887C (zh) 2007-02-28
DE60210041D1 (de) 2006-05-11
AR038284A1 (es) 2005-01-12
JP2003210331A (ja) 2003-07-29
KR20030061299A (ko) 2003-07-18
EP1327589A3 (en) 2004-02-04
CN1432519A (zh) 2003-07-30

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Legal Events

Date Code Title Description
AS Assignment

Owner name: TECNOMECCANICA S.R.L., ITALY

Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNOR:ROMAGNOLI, ANDREA;REEL/FRAME:013665/0333

Effective date: 20021127

STCB Information on status: application discontinuation

Free format text: ABANDONED -- FAILURE TO RESPOND TO AN OFFICE ACTION