EP0965538B1 - Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication - Google Patents

Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication Download PDF

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Publication number
EP0965538B1
EP0965538B1 EP98109326A EP98109326A EP0965538B1 EP 0965538 B1 EP0965538 B1 EP 0965538B1 EP 98109326 A EP98109326 A EP 98109326A EP 98109326 A EP98109326 A EP 98109326A EP 0965538 B1 EP0965538 B1 EP 0965538B1
Authority
EP
European Patent Office
Prior art keywords
chamber
longitudinal
web
folding
substance
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
EP98109326A
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German (de)
English (en)
Other versions
EP0965538A1 (fr
Inventor
Wilhelm Ing.Grad. 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 DE59800242T priority Critical patent/DE59800242D1/de
Priority to AT98109326T priority patent/ATE195483T1/de
Priority to EP98109326A priority patent/EP0965538B1/fr
Priority to ES98109326T priority patent/ES2150804T3/es
Publication of EP0965538A1 publication Critical patent/EP0965538A1/fr
Application granted granted Critical
Publication of EP0965538B1 publication Critical patent/EP0965538B1/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 single-chamber infusion bag, in particular for tea a chamber containing a substance quantum, which consists of a pair of each other oppositely arranged walls is formed, which on its circumference are connected to each other along their long and short sides and one enclosed space containing the substance quantum, whereby at least one, preferably both long sides with a chamber volume with a constant bag width increasing at least five, preferably seven concertina or bellows-type concertina to be folded trained folding are provided.
  • the invention further relates to a method for the continuous production, filling and sealing of such Single-chamber infusion bags, especially for tea.
  • Tea infusion bags are used in various forms, in particular the use of double-chamber infusion bags has prevailed, the two arranged side by side have lying chambers, each containing a quantity of dried and crushed tea leaves included. Because of the complicated manufacture but simple single-compartment infusion bags continue to be used, which are usually consist of a rectangular filter paper strip, which is folded in the middle and including a quantity of substance on the three initially open sides, is sealed in particular by heat sealing or from two Filter paper webs into a four-sided sealed or round bag be sealed by heat sealing.
  • a tea bag which consists of tubular Material is made at its lower end by folding or welding is closed and is filled with tea via the upper open end, after which a special closure part is used to the upper end of the Seal the bag.
  • a tubular bag that is Chamber volume is significantly increased compared to known tea bags, but is on the other hand, an elaborate production with several operations required that hinder continuous production.
  • the known tubular bag dimensions much larger than has the usual single-chamber infusion bag and approximately in length Corresponds to the inside height of a glass or jug in which the bag is inserted becomes.
  • a single-chamber infusion bag of the type mentioned with accordion or Bellows-like folds are known from GB 789 492 A.
  • the concertina or bellows-like design the long sides of the single-chamber infusion bag significantly increase the chamber volume increase without increasing the outside dimensions of the bag. So that is in addition to the flexibility in the design of the bag thickness, the additional advantage connected that with a small depth of folding in the interior of the bag can be worked into and thus the effective filling volume for the Substance can be enlarged.
  • the depth of folding into the chamber is too great Given the prepositioned substance, so that either the amount of substance must be reduced or the folding process is disturbed by the substance becomes. In practice, however, it has been shown that this zigzag shape is extremely difficult Form fold so that a predetermined bag width is observed.
  • EP 0 806 351 A1 describes a double-chamber infusion bag, in particular for Tea, known in which the long sides by a longitudinal edge seal are closed. To increase the chamber volume is already there proposed to fold the longitudinal edge seal inwards, whereby the Teabag gets smaller in width. The disadvantage is that with this measure sufficient for a double chamber bag, but in principle only in limited chamber enlargement is possible.
  • the invention is based on the object of developing a technically simple and continuously producible single-chamber infusion bag which, while maintaining the usual external dimensions without increasing its length or width in the packaging state, has an accordion or at least along one long side provides bellows-like folding to enlarge the chamber volume.
  • the object is inventively achieved in a single-chamber infusion bag of the type mentioned in that the two opposing chamber walls of the single-chamber infusion bag are provided for producing the folding with linear congruent pre-embossings parallel to the longitudinal side connection.
  • the knockouts on the oppositely arranged walls of the chamber it is possible in a simple manner, by inserting the longitudinal side connection into the chambers, to reliably and reproducibly fold the zigzag-shaped fold in at the predetermined locations, preferably on both longitudinal sides, with this the bag width can also be determined.
  • a plurality are expediently parallel to one another, at a distance mutually congruent pairs of linear knockouts according to the number of intended folding operations side by side arranged.
  • Interacting pairs of knockouts can be the same Folding forces and non-interacting pairs have different folding forces need in that the knockouts are of different depths.
  • Knockouts can also be linear mini perforations or Stronger reductions in the material applied according to the type of film hinge formation become.
  • the single-chamber infusion bag according to the invention consists of a easily permeable, heat sealable filter paper material, which it the Infusion liquid enables the substance to be leached out, in particular the tea, good to open up and on the other hand is suitable, the Long side connections and transverse side connections by heat sealing to manufacture.
  • a thread with a Label attached to the infusion bag the label thread preferably loop-shaped inside the chamber and by means of the label is extractable for use.
  • the Invention proposed a duplex process control, thereby is characterized in that on a correspondingly broadened first web two Rows of substance quanta are placed symmetrically next to each other, that over the first track a correspondingly broadened second upper track is carried out that the knockouts are then made, the upper and lower web brought together and by means of two outer, in Longitudinal heat seals and a central, in Longitudinal heat seal together to form two tubes are connected, which are then cut centrally in the longitudinal direction and finally in the same way as with the simplex process the long sides folded in accordion or bellows shape, in Transversely heat sealed and in the transverse seals in a transverse direction Direction to be cut.
  • 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 on their circumference connected to one another along their long sides 4, 5 and transverse sides 6, 7 are and such an enclosed space to form a chamber 8th form, which a substance quantum 9, namely a portioned amount of tea, contains.
  • the one-chamber infusion bag 1 is therefore on its four sides sealed by heat sealing, namely by longitudinal edge seals 10, 11 on the long sides 4, 5 and two cross seals 12, 13 on the short sides 6, 7.
  • the volume of the chamber 8 of such a single-chamber infusion bag 1 is significantly increased by the fact that on both longitudinal sides 4, 5 one Folding 14, 15 is formed, which is accordion-shaped in cross section, the longitudinal edge seals 10, 11 approximately in the central plane 18 of the Bags are and are inserted into the chamber 8 such that the usual external dimensions of such single-chamber bags are maintained and thus, despite the increase in chamber volume, no increase in it Length or width in the packaging state is given. So that is achieved that the substance quantum of tea in the chamber is outstanding due to the Infusion liquid is to be digested and the substances contained in it solve optimally.
  • the chamber volume is more than 30% compared to a conventional single-chamber infusion bag without Enlargement enlarged, with the zigzag-shaped folding 14, 15 each according to the number of folds - at least five folds on one side - one greater variability in the design of the chamber volume can be achieved.
  • the single-chamber infusion bag 1 has one on it attached thread 16 provided with label 17, the hanging of the bag into a cup, jug or similar vessel.
  • FIGS. 3, 4 and 5 of the drawing illustrate a single-row or simplex production
  • Fig. 5 of the drawing a bag production in two parallel rows continuous, also called duplex production.
  • the starting point for the production of single-chamber infusion bags 1 is a first one heat-sealable filter paper web 19 by a not shown Material roll drawn off by a pulling device and as a web one Dosing device for tea is supplied. From this are positioned Substance quanta 9, i.e. piles of tea, at regular intervals in one Row placed on the filter paper web 19. From a not shown Another roll of material is a second, upper heat-sealable from above Filter paper web 20 of identical size and transport speed lower filter paper web 19 and fed in parallel by means of a roller this arranged so that there is a uniform forward movement of the Filter paper web 19 and the filter paper web 20 arranged one above the other and gives each other opaque.
  • Both the lower sheet 19 and the upper sheet 20 are pre-dosed or before merging in an embossing device in the longitudinal direction one or more knockouts 21 on both long sides congruent provided whose positions are made so that they ultimately the Determine the width B of the finished single-chamber infusion bag 1.
  • the line-shaped Knockouts 21 represent crease edges that form the folds 14, 15 in the later stage of the procedure.
  • the lower web 19 and upper web 20 in a device having heat sealing rollers brought together and by means of the longitudinal Longitudinal edge seals 10 and 11 to each other at the web edges a hose 22 connected at regular intervals in a row contains the substance quanta 9. 3 and 4 of the drawing reached stage of manufacture I.
  • the process step of folding the long sides 4 and 5 done in two stages. This will be done first in a first convolution the provided with the longitudinal edge seals 10, 11 longitudinal sides 4, 5 of Hose 22 pressed inward so that a right-angled kink
  • the knockouts 21 are carried out and the tube has a cross section rectangular shape according to manufacturing stage II in Fig. 3 and 4 of the drawing receives.
  • the longitudinal edge seals 10, 11 continue to inside in the chamber 8 in a second folding according to manufacturing stage III pressed in and for example by folding swords, rollers and the like performed until the folds 14, 15 the desired zigzag Have cross-section, the longitudinal edge seals 10, 11 approximately in the Middle plane 18 of the chamber 8 are positioned in the finished bag.
  • the hose 22 created in this process stage with the bellows Folds 14 and 15 are then in with a cross sealer regular intervals, each covering a quantity of substance 9 - according to the height H of the bags to be produced - in the transverse direction heat-sealed and the transverse heat seals are centered cut so that hose parts are formed, each one Have chamber 8 containing substance quantum, on the long sides with Longitudinal edge seals 10, 11 and on the transverse sides with transverse seals 12, 13 provided and are closed on all sides.
  • the thread 14 previously laid out with label 17 for each single-chamber infusion bag 1 to attach to one of the cross seals, including a loop Removable label thread 16 is provided from inside the chamber 8 can be.
  • first web 23 and second web 26 brought together and by means of two outer, running in the longitudinal direction Heat seals 28, 29 and a central longitudinal one Heat seal 30 joined together to form two tubes that then in the middle in the longitudinal direction by means of a cutting device can be cut and separated.
  • FIG. 6 of the drawing A variant of the duplex method is shown in Fig. 6 of the drawing.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Packages (AREA)
  • Containers And Plastic Fillers For Packaging (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Package Specialized In Special Use (AREA)

Claims (9)

  1. Sachet d'infusion à un compartiment (1), en particulier pour du thé, comprenant un compartiment (8) qui contient une dose de substance (9) et qui est formé d'une paire de parois en vis-à-vis (2, 3) qui sont reliées entre elles au niveau de leur périphérie le long de leurs côtés longitudinaux (4, 5) et de leurs côtés transversaux (6, 7) et qui forment un espace clos contenant la dose de substance (9), au moins un côté longitudinal et de préférence les deux (4, 5) étant pourvus d'une partie plissée en accordéon ou en soufflet (14, 15) qui comporte au moins cinq plis et de préférence sept et qui augmente le volume du compartiment tout en maintenant la largeur (B) du sachet constante, caractérisé en ce que les deux parois (2, 3) sont pourvues de parties préestampées linéaires symétriques (21) parallèles à la liaison des côtés longitudinaux.
  2. Sachet d'infusion à un compartiment selon la revendication 1, caractérisé en ce qu'une pluralité de paires symétriques de parties préestampées linéaires (21), parallèles entre elles et espacées les unes des autres, sont disposées côte à côte, leur nombre correspondant à celui des opérations de pliage prévues.
  3. Sachet d'infusion à un compartiment selon la revendication 2, caractérisé en ce que les paires associées de parties préestampées (21) nécessitent des forces de pliage identiques, et les paires non associées des forces de pliage différentes pour l'opération de pliage, car les parties préestampées (24) des paires non associées présentent des profondeurs différentes.
  4. Sachet d'infusion à un compartiment selon l'une des revendications 1 à 3, caractérisé en ce qu'un fil (16) muni d'une étiquette (17) y est fixé, le fil d'étiquette étant logé de préférence sous la forme d'une boucle à l'intérieur du compartiment (8) et pouvant en être extrait au moyen de l'étiquette pour être utilisé.
  5. Procédé de fabrication, de remplissage et de fermeture en continu de sachets d'infusion à un compartiment selon l'une des revendications 1 à 4, caractérisé en ce qu'une première bande plane de papier-filtre thermoscellable (19) soumise à un mouvement d'avance uniforme est garnie d'une rangée de doses de substance identiques (9) déposées à intervalles réguliers, en ce qu'au-dessus de la première bande (19) défile une seconde bande supérieure (20) en papier-filtre thermoscellable de même largeur, en ce que, en des endroits coïncidents dans la direction longitudinale, les bandes inférieure (19) et supérieure (20) sont pourvues, sur l'un de leurs côtés longitudinaux ou sur les deux (4, 5), d'une partie préestampée (21) qui détermine la largeur (B) des sachets finis, en ce que les bandes inférieure (19) et supérieure (20) sont réunies et reliées entre elles sous la forme d'une gaine (22) au niveau de leurs côtés longitudinaux (4, 5) à l'aide d'un thermoscellage s'étendant dans la direction longitudinale, en ce que l'un des côtés longitudinaux ou les deux (4, 5) sont pliés en accordéon ou en soufflet, en ce que la gaine (22) est thermoscellée dans la direction transversale selon des intervalles réguliers - en fonction de la hauteur (H) des sachets à confectionner - qui renferment chacun une dose de substance (9), et en ce que les joints thermoscellés transversaux (31) sont découpés en leur centre, donnant naissance à des parties de gaine qui comportent chacune un compartiment (8) contenant une dose de substance (9).
  6. Procédé selon la revendication 5, caractérisé en ce que des paires juxtaposées et espacées de parties préestampées symétriques linéaires (21) sont réalisées en fonction du nombre d'opérations de pliage prévues.
  7. Procédé selon la revendication 5 ou 6, caractérisé en ce que l'étape de procédé consistant à plier les côtés longitudinaux est réalisée en plusieurs phases, à savoir que, lors d'un premier pliage, les côtés longitudinaux (4, 5) pourvus de scellages de bords longitudinaux (10) sont poussés vers l'intérieur, de façon à obtenir un flambage à angle droit au niveau des parties intérieures préestampées (21) et à donner à la gaine (22) une forme à section rectangulaire, et, lors d'un second pliage, les scellages de bords longitudinaux (10, 11) sont ensuite enfoncés davantage vers l'intérieur du compartiment (8) jusqu'à ce que les parties plissées (14, 15) présentent la section en accordéon ou en soufflet souhaitée, les scellages de bords longitudinaux (10, 11) étant positionnés dans le plan médian (18) de la gaine (8).
  8. Procédé selon la revendication 5 ou 6, caractérisé en ce que, conjointement à l'étape de scellage transversal, un fil (16) avec une étiquette (17) est fixé à chaque joint transversal scellé (31), de façon que chaque sachet isolé par la découpe du joint transversal scellé (31) comporte un fil d'étiquette scellé (16, 17).
  9. Procédé selon l'une des revendications 5 à 7, caractérisé en ce que deux rangées (24, 25) de doses de substance (9) sont juxtaposées symétriquement sur une première bande (23) élargie en conséquence, en ce qu'au-dessus de la première bande (23) défile une seconde bande supérieure (26) élargie en conséquence, en ce qu'ensuite les parties préestampées (21) sont réalisées, les bandes supérieure (26) et inférieure (23) sont réunies et reliées entre elles au moyen de deux joints thermoscellés extérieurs (28, 29) s'étendant dans la direction longitudinale et d'un joint thermoscellé central (30) s'étendant dans la direction longitudinale pour donner naissance à deux gaines qui sont alors découpées en leur centre dans la direction longitudinale et enfin pliées en accordéon ou en soufflet le long de leurs côtés longitudinaux, thermoscellées dans la direction transversale et découpées dans la direction transversale au niveau des joints transversaux scellés (31).
EP98109326A 1998-05-22 1998-05-22 Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication Expired - Lifetime EP0965538B1 (fr)

Priority Applications (4)

Application Number Priority Date Filing Date Title
DE59800242T DE59800242D1 (de) 1998-05-22 1998-05-22 Einkammer-Aufgussbeutel, insbesondere für Tee, und Verfahren zu seiner Herstellung
AT98109326T ATE195483T1 (de) 1998-05-22 1998-05-22 Einkammer-aufgussbeutel, insbesondere für tee, und verfahren zu seiner herstellung
EP98109326A EP0965538B1 (fr) 1998-05-22 1998-05-22 Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication
ES98109326T ES2150804T3 (es) 1998-05-22 1998-05-22 Bolsa de infusion de camara unica, especialmente para te, y procedimiento para su fabricacion.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP98109326A EP0965538B1 (fr) 1998-05-22 1998-05-22 Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication

Publications (2)

Publication Number Publication Date
EP0965538A1 EP0965538A1 (fr) 1999-12-22
EP0965538B1 true EP0965538B1 (fr) 2000-08-16

Family

ID=8231979

Family Applications (1)

Application Number Title Priority Date Filing Date
EP98109326A Expired - Lifetime EP0965538B1 (fr) 1998-05-22 1998-05-22 Sachet d'infusion à un compartiment, particulièrement pour thé, et procédé pour sa fabrication

Country Status (4)

Country Link
EP (1) EP0965538B1 (fr)
AT (1) ATE195483T1 (fr)
DE (1) DE59800242D1 (fr)
ES (1) ES2150804T3 (fr)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102018101338A1 (de) * 2018-01-22 2019-07-25 Melitta Single Portions Gmbh & Co. Kg Verfahren zur Herstellung eines Getränks mit einer Portionspackung und Portionspackung

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB789492A (en) * 1956-02-29 1958-01-22 Modern Coffees Inc Infusible coffee bag
CH391219A (de) * 1960-10-10 1965-04-30 Hesser Ag Maschf Aufgussbeutel
DE9104897U1 (fr) * 1991-04-22 1991-08-14 Fa. J.T. Ronnefeldt, 6000 Frankfurt, De
DE59604043D1 (de) * 1996-05-07 2000-02-03 Teepack Spezialmaschinen Doppelkammer-Aufgussbeutel, insbesondere für Tee, und Verfahren zu seiner Herstellung

Also Published As

Publication number Publication date
ES2150804T3 (es) 2000-12-01
EP0965538A1 (fr) 1999-12-22
DE59800242D1 (de) 2000-09-21
ATE195483T1 (de) 2000-09-15

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