EP1002743B1 - Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment - Google Patents

Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment Download PDF

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Publication number
EP1002743B1
EP1002743B1 EP19980110620 EP98110620A EP1002743B1 EP 1002743 B1 EP1002743 B1 EP 1002743B1 EP 19980110620 EP19980110620 EP 19980110620 EP 98110620 A EP98110620 A EP 98110620A EP 1002743 B1 EP1002743 B1 EP 1002743B1
Authority
EP
European Patent Office
Prior art keywords
longitudinal
chamber
substance
web
heat
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
EP19980110620
Other languages
German (de)
English (en)
Other versions
EP1002743A1 (fr
Inventor
Wilhelm Dipl.-Ing. Lohrey
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.)
Teepak Spezialmaschinen GmbH and Co KG
Original Assignee
Teepak Spezialmaschinen GmbH and Co KG
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 Teepak Spezialmaschinen GmbH and Co KG filed Critical Teepak Spezialmaschinen GmbH and Co KG
Priority to DE59801339T priority Critical patent/DE59801339D1/de
Priority to EP19980110620 priority patent/EP1002743B1/fr
Publication of EP1002743A1 publication Critical patent/EP1002743A1/fr
Application granted granted Critical
Publication of EP1002743B1 publication Critical patent/EP1002743B1/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
    • 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

Definitions

  • the invention relates to a method for continuous production, filling and Closing single-chamber infusion bags, especially for the preparation of Tea.
  • the small chamber volume provides only a limited expansion option when the tea swells Available so that the valuable tea is insufficient from the substance can be extracted and transferred to the surrounding tea water.
  • the small chamber volume also means that none can be Leaf tea varieties as a quantum of substance, but only use fine cuts whose Quality is less than leaf tea.
  • a single chamber infusion bag is known in which the Long sides of the chamber are formed by tubing by the two longitudinal edges of a heat-sealable material web to the inside Folded in the middle and joined together by heat sealing be, with one on each long side in the chamber itself extending folding is provided.
  • the tube is formed Fold-free, seal-free or seam-free long sides, in which in a simple way inward-extending folds can be made, which both a simple continuous manufacture and a large one Chamber volume can be achieved.
  • the disadvantage is that the central longitudinal heat seal which are available for the passage of the leaching liquid Area of one chamber wall is significantly reduced.
  • the invention has for its object to provide a method for the continuous manufacture, filling and closing of single-chamber infusion bags, by which the passage area is enlarged to improve leaching and a broad heat sealing strip on the chamber wall is avoided.
  • portioned substance quanta of the substance to be leached out are deposited at regular intervals on an initially flat material web, in particular filter paper web, optionally after bulging of their side edges, so that a continuous tube is subsequently formed from the web by the two longitudinal edges are folded inwards towards the longitudinal center and bent at an unequal length from the plane of the bag surface parallel to one another and connected to one another by knurling, so that the two longitudinal sides are provided with an inwardly extending fold-in during the tube formation or subsequent to the tube formation, that the tube is then heat-sealed in the transverse direction at regular intervals, each measuring a quantity of substance, and that the cross-heat seals are cut in the middle and such tube parts are formed that each ils have a chamber containing a substance quantum.
  • the method of the invention can be carried out at high speed because the middle-longitudinal connection is carried out by mechanical knurling and - different than when producing a medium-length heat seal - none time-consuming transfers of high amounts of heat as well as cooling processes must be carried out to create the longitudinal seam.
  • DE-A-1 800 032 shows a single-chamber infusion bag in which the Tube is already formed by a knurled seam.
  • Both long sides are preferably accordion-like or bellows-like folded in, the flat material web beforehand with linear Longitudinal knockouts according to the number of intended Folding processes can be provided.
  • the one-chamber infusion bag 1 shown in Fig. 1 of the drawing made of heat sealable filter paper material and has two each other oppositely arranged chamber walls 2, 3 through Tube formation of a web 4 of the filter paper material result by the turned over both longitudinal edges 5, 6 inwards towards the longitudinal center 7 and there are connected to one another by a central longitudinal knurled seam 8, the foot end 9 and the head end 10 each having a transverse one Heat seal 11 or 12 are closed. That way is a enclosed space formed to form a chamber 13, the one Substance quantum 14, namely a portioned amount of tea, contains.
  • the A single-chamber infusion bag 1 is therefore on its two long sides 15 and 16 due to the tube formation without seams and sealing-free in that the central longitudinal knurled seam 8 is provided, while the closure on Foot end 9 and head end 10 through the transverse heat seals 11 and 12 he follows.
  • the volume of the chamber 13 of such a single-chamber infusion bag 1 is significantly increased in that one on each of the long sides 15, 16 Folding 17, 18 is formed, the V-shaped to accordion-shaped Cross section is and approximately in the central plane in the chamber 13 of the bag extends inwards.
  • the folds 17, 18 are so made that the usual external dimensions of such single-chamber infusion bags be maintained and thus despite the increase in Chamber volume no increase in its length or width in Packaging condition is given. This ensures that Substance quantum tea in chamber 13 excellently through the Infusion liquid is to be digested and the substances contained in it solve optimally. This is also due to the fact that the long sides 15 and 16 and the chamber wall 2 are free of heat seals.
  • the single-chamber infusion bag 1 with a attached thread with label (not shown), which hanging the bag in a cup, jug or the like enable,
  • Einzig-Aufguß lines 19 illustrates that the touching, in the longitudinal center 7 merged knurled longitudinal edges 5 and 6 into one are formed perpendicular to the web 4 upstanding longitudinal seam 20, the subjected to knurling from both sides by means of knurling wheels 21, 22 becomes. Then the knurled seam essentially folds into the Level of the bag instead, as can be seen in FIG. 2.
  • the manufacture of such a single-chamber infusion bag 1 or 19 is below based on the description of FIGS. 4 and 5 of the drawing clarifies.
  • the starting point of manufacture is a heat sealable one Filter paper web 4 by a roll of material, not shown, by a Pulled device and as a flat track of a metering device D for Tea is fed.
  • Dosing device D with an embossing device, not shown in Longitudinal direction left and right parallel to the longitudinal edges 5, 6 of the Filter paper web 4 are each made a linear pre-embossing acts as a folded edge to the formation of the folds 17 and 18 in to facilitate the later stage of the procedure.
  • the material web 4 becomes a hose by means of forming a tube inwards according to the arrows in Fig. 4 I of the drawing turned on both sides until the longitudinal edges 5 and 6 in come together in the middle.
  • the longitudinal seam 20 becomes the longitudinal seam 20 according to FIG. 3 with an uneven height brought up from the bag level and arranged parallel to each other Longitudinal edges formed, then by a central longitudinal knurled seam 8, if necessary also by additionally folding the Longitudinal edges to make the connection.
  • hose 23 created in this process stage with the V-shaped Folds 17 and 18 are then in with a cross sealing device regular intervals, each capturing a quantity of substance 14 in Transversely heat sealed and these cross heat seals 11, 12th cut in the middle so that hose parts 24 are formed, each one have a chamber 13 containing quantum of substance 14, on all sides is closed by two heat seals and the knurled seam.
  • This Process stage is shown in Fig. 4 III of the drawing.
  • a previously designed thread with a label for each single-chamber infusion bag 1 or 19 to attach to one of the cross seals, including a Label thread which can be pulled out in a loop from the interior of the chamber 13 can be provided.
  • FIG. 5 of the drawing another can be used to improve the knurling Stapling the longitudinal edges 5 and 6 together by using a H be done before knurling by softening the Plastic fibers the filter paper material leads to an adhesive connection. This allows the longitudinal edges to be folded and knurled together perform more precisely and safely.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Packages (AREA)

Claims (5)

  1. Procédé pour la fabrication, le remplissage et la fermeture en continu de sachets d'infusion à un seul compartiment (1 ; 19), en particulier pour la préparation de thé, caractérisé en ce qu'on pose à des distances régulières sur une bande de matériau tout d'abord plane (4), en particulier sur une bande de papier filtre, le cas échéant après bombement de ses bords latéraux, des quantités unitaires de substance mises en portions (14) de la substance à faire infuser, en ce qu'on forme ensuite une gaine continue à partir de la bande en repliant les deux bords longitudinaux (5, 6) vers l'intérieur vers le milieu longitudinal (7) et en les redressant vers le haut parallèlement l'un à l'autre à des longueurs inégales à partir du plan de la surface du sachet et en les reliant l'un à l'autre par moletage, en ce que l'on pourvoit les deux côtés longitudinaux (15, 16) d'une plissure (17, 18) s'étendant vers l'intérieur pendant la mise sous forme de gaine ou à la suite de la mise sous forme de gaine, en ce que l'on pratique ensuite un thermosoudage en direction transversale de la gaine à des distances régulières enfermant une quantité unitaire de substance respective (14), et en ce que l'on coupe au milieu les thermosoudures transversales (11, 12) et on forme de cette manière des parties de gaine qui comprennent chacune un compartiment (13) contenant une quantité unitaire de substance (14).
  2. Procédé selon la revendication 1, caractérisé en ce que l'on effectue une opération d'adhésion par un préchauffage des deux bords longitudinaux à fixer l'un sur l'autre avant de réaliser le moletage.
  3. Procédé selon l'une ou l'autre des revendications 1 et 2, caractérisé en ce que l'on met en plis les deux côtés longitudinaux (15, 16) à la manière d'un accordéon ou d'un soufflet, la bande de matériau plane (4) étant pourvue préalablement d'impressions linéaires en direction longitudinale en correspondance du nombre des opérations de pliage prévues.
  4. Procédé selon l'une quelconque des revendications 1 à 3, caractérisé en ce que l'on fixe un fil textile comprenant une étiquette sur chaque scellement transversal conjointement avec l'étape de procédé du scellement transversal, de telle sorte que chaque sachet se présentant individuellement après avoir coupé les thermosoudures transversales (11, 12) comprend un fil à étiquette scellé qui .est disposé de préférence de manière à pouvoir l'extraire en forme de boucle dans l'intérieur du compartiment (13).
  5. Procédé selon l'une quelconque des revendications 1 à 4, caractérisé en ce que l'on met en forme les bords longitudinaux (5, 6) qui se touchent et qui sont réunis au milieu longitudinal (7), pour obtenir un cordon longitudinal (20) qui est redressé perpendiculairement à la bande (4) et qui est soumis à un thermosoudage des deux côtés.
EP19980110620 1998-06-10 1998-06-10 Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment Expired - Lifetime EP1002743B1 (fr)

Priority Applications (2)

Application Number Priority Date Filing Date Title
DE59801339T DE59801339D1 (de) 1998-06-10 1998-06-10 Verfahren zum Herstellen, Füllen und Verschlie en von Einkammer-Aufgu beuteln
EP19980110620 EP1002743B1 (fr) 1998-06-10 1998-06-10 Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP19980110620 EP1002743B1 (fr) 1998-06-10 1998-06-10 Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment

Publications (2)

Publication Number Publication Date
EP1002743A1 EP1002743A1 (fr) 2000-05-24
EP1002743B1 true EP1002743B1 (fr) 2001-08-29

Family

ID=8232100

Family Applications (1)

Application Number Title Priority Date Filing Date
EP19980110620 Expired - Lifetime EP1002743B1 (fr) 1998-06-10 1998-06-10 Procédé pour la fabrication, le remplissage et la fermeture de sachets d'infusion à un seul compartiment

Country Status (2)

Country Link
EP (1) EP1002743B1 (fr)
DE (1) DE59801339D1 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0027766D0 (en) * 2000-11-14 2000-12-27 Tetley Gb Ltd Infusion package

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2186087A (en) * 1938-07-23 1940-01-09 Pneumatic Scale Corp Package
GB871505A (en) * 1956-08-29 1961-06-28 Paul Gerhard Klar Apparatus for producing and filling packings
DE1800032A1 (de) * 1968-04-08 1969-10-23 Adolf Rambold Aufgussbeutel,insbesondere fuer Tee
DE9104897U1 (fr) 1991-04-22 1991-08-14 Fa. J.T. Ronnefeldt, 6000 Frankfurt, De
NZ249956A (en) * 1992-03-27 1996-08-27 Tidy Tea Ltd Infusible package; tea/coffee bag with extra length of draw string inside the bag
NL1003569C2 (nl) * 1996-07-11 1998-01-15 Sara Lee De Nv Thee-, koffie- of kruidenzakje.

Also Published As

Publication number Publication date
EP1002743A1 (fr) 2000-05-24
DE59801339D1 (de) 2001-10-04

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