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
  • B65D85/812—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 invention concerns a disposable packaging for production of beverages, especially tea.
• the disposable packaging is of the kind which consists of a 2-ply filtering material, in particular filtering paper, divided in one or more separate chambers each containing tea or a similar material extractable in fluid, which material in the following is called an extraction bag.
• an extraction bag To the extraction bag is attached a piece of string which at the opposite end could have a label for pulling out the bag.
• Extraction bag, string and label are wrapped in a flexible piece of material which is moisture absorbing, but not moisture penetrating, which material in particular can be paper and in the following is called an envelope.
• the envelope serves the purpose of protecting the extraction bag and its contents.
• the known disposable packaging of this kind are usually making use of an extraction bag, with fixed string and label, consisting of separate chambers in a rectangular shape containing extractable material wrapped in an equally rectangular envelope.
• the envelope only serves the purpose of protecting the contents before use and then it has to be discarded.
• the practical and aesthetic problem arises as to remove the wet or humid extraction bag which often will be placed into or upon available unsuitable objects as e.g. ash trays, waste paper baskets, plates or the like.
• the contents of the wet bag will furthermore leave undesired spots on table surfaces, table cloths etc. from which they can be difficult to remove.
• the embodiment is obviously bearing the impress of being an adjusted solution based on the previously mentioned known rectangular extraction bag and is such encumbered with a number of disadvantages in relation to the problem it pretends to solve.
• twisting device in which the string is taken all the way around the extraction bag, fixed in a number of sliding loops or similar, is making the production process difficult, since precisely the attachment of the string to the bag is the critical point in the production of the previously mentioned disposable packaging and consequently an already difficult production process is being complicated.
• a second disadvantage in relation to the production is the complicated operation to take the string, with or without label through the envelope in the shown and described embodiments .
• Extraction bags which after use can be kept in the packaging, are known from US-patents no.: 2308241, 3057729, 3047397,
• US-patent no. 2860989 is based on the principle: To draw the used tea bag up into a rectangular envelope being open only at one side: To ensure the lead-in of the tea bag into the envelope it has been provided with a number of slits and foldings, which enable the opening of the envelope to expand and thus a kind of funnel effect is created. The problem to this solution is only that these slits and foldings of the envelope envitable will complicate and raise the production process to an unreasonable extend. It can be objected that the solution could be simplified by making the envelope so much bigger than the tea bag itself, that this latter always will be able to be pulled up into the envelope without sticking into its sides.
• the deposit's solid mass will spread asymmetric in relation to the vertical axis which the string now creates.
• the uneven weight distribution in relation to the vertical axis implies that the upper point of the tea bag probably can be taken rather safely into the opening of the envelope, but when the lower part of the tea bag containing the solid mass is to be pulled "on board” it will stick to one of the two sides of the opening of the envelope because of the asymmetric weight distribution at the string.
• the uneven weight distribution will have a tendency co put the tea bag in rotation about its own vertical axis (the string) when the tea bag is pulled up into the envelope, whereby the lead-in into this is made difficult since the tea bag easily can place itself crosswise in the opening of the envelope.
• an extraction bag consists of one or more separate or connected, in their primary form, triangular chambers of a 2-ply filtering material and the envelope consists of at least 2 overlapping, in their primary form triangular flaps of a flexible, moisture absorbing, but not moisture penetrating material, in particular paper, that the string attached to the extraction bag can be wrapped between the flaps in such a way, that the string attached to the extraction bag is taken through one the corners of the triangle and that the 2 sides of the triangle, on each side of the corner, lengthways have been assembled in such a way that a triangular envelope thereby is created, which connected to the extraction bag and to the string attached to this latter form a disposable packaging based on the funnel principle, where the triangular extraction bag after use, via withdrawal of the string, thus easily will re-enter the triangular envelope which hereby hides the used bag and then can absorb the extra liquid from the bag without using ingenious and complicated twisting devices or the like.
• a flap as most often is corresponding in size and shape to the envelope, which flap in packing is folded and closed over the opening of the envelope, so that the extraction bag and its contents are hygienic sealed and protected before use.
• the flap can in use be folded around the envelope and after use re-folded back to the sealing position along a weak adhesive strip or similar so that the used bag in this way is sealed.
• the string is in packing attached to the said flap which is connected to the envelope along a perforated tearing off line in a form having the advantage that the flap by opening the packaging merely can be torn off from the envelope and then be used as a label. Production-wise this embodiment requires less possible operations and without loss of kindness to the user.
• the invention also relates to a method for production of the disposable packaging.
• Said method is unique in that the extraction bag is being produced by a, in principle, infinite tube of 2-ply filtering material alternately being closed crosswise along lines in slanting angles, measured in relation to the two lengthways sides of the tube by hot welding or similar technique, and each of the extraction bags thus closed is cut off along the crosswise closures, whereafter a piece of string, perhaps with a label, is attached to one of the three corners of the extraction bag by hot welding, gluing or a similar technique, that the envelope is produced by an, in principle, endless length of moisture absorbing, but not moisture penetrating material, is marked crosswise along lines in slanting angles analogous to the ones used in the extraction bag, measured in relation to the two length-going sides of the length, whereafter these are cut off from the length in a number of at least two connected flaps, and then the extraction bag is placed upon one of these two flaps, with the string taken out beyond one of the two corners where the two flaps
• the extraction bag is cut out in a number of at least two connected extraction bags, which are folded over one another along the crosswise closure.
• the two opposite pointed corners of the two extraction bags are then attached to one another by hot welding, gluing or a similar technique.
• Fig. l shows cutting out and folding of an embodiment of an extraction bag according to the invention, consisting of two chambers, from a section of an, in principle, endless tube of mutual laterally reversed, triangular extraction bags, consisting of 2-ply filtering material,
• Fig. 2 shows the extraction shown in fig. 1 with attached string and label
• Fig. 3, 4 and 5 show stages of the packing of the extraction bag shown in fig. 2 in a folded envelope according to the invention, cut out from a section of an, in principle, endless row of mutual laterally reversed, triangular flaps, consisting of a flexible moisture absorbing, but not moisture penetrating material.
• a section of an, in principle, endless row of mutual laterally reversed, triangular flaps consisting of a flexible moisture absorbing, but not moisture penetrating material.
• Fig 6 shows a typical embodiment of a disposable packaging according to the invention, in sealed, but ready to use version.
• the use of a possible third flap according to the description of the envelope is also shown in this figure.
• Fig. 7 shows the same, but now in open condition.
• Fig. 8 shows the withdrawal principle of a used extraction bag to the envelope.
• Fig. 9, 10 and 11 show the same as fig. 6, 7 and 8, but in an version where the flap connected to the envelope is torn off and used as label.
• Fig. 1 shows a section of an, in principle, endless tube of 2-ply filtering material (i) which through hot welding or similar technique continues to be divided into a number of connected, mutually separated extraction bags (a) shaped as triangular chambers, each containing divided portions of a material extractable in a fluid.
• the drawing shown illustrates the most prevailing double chamber bag consisting of two connected chambers, cut off along the centre line (h) by the crosswise closures (b) and folded over the centre line (c) in the crosswise closure between the two connected chambers.
• Fig. 2 shows a complete extraction bag (a) , in principle consisting of one or more separate or connected chambers as shown in fig. 1 with a piece of string attached to one of the 3 corners of the extraction bag. At the opposite free end (t) of the string (e) a label (f) is fixed possibly provided with a couple of slits (g) for rolling up the string.
• Fig. 3 shows a section of an, in principle, endless length of a flexible moisture absorbing, but not moisture penetrating material, especially paper, which continuously along crosswise lines (u) are marked as a row of triangular flaps.
• the drawing shows the first stage of the packing process of the shown extraction bag in an envelope as shown in fig. 2, where the extraction bag (a) is placed upon a flap (j) and then its opposite connected flap (k) is cut off along the line (m) and folded in over the extraction bag placed on the first flap (j) and the attached string (e) on this latter, which string has been taken through the corner (x) by folding over the line
• the two flaps (j and k) are assembled to one another along the side (p) of the triangle by crimping, gluing or a similar technique and thereby forming an envelope which is connected to the extraction bag and its string.
• a possible third flap (1) which is connected to the envelope, is cut out and is started to be folded along the side (o) of the triangle over the envelope.
• Fig. 4 shows next stadium of the packing process shown in fig. 3, where the string (e) is rolled up around the label's (f) two slits (g) ( rolling up of the string can take place in other ways than the one shown here) and placed on one of the flaps (k) of the envelope, and then the possible third flap (1) is folded over the envelope's opening on the said flap (k) and the string rolled up around the label.
• Fig. 5 shows the last stadium of the packing process shown in fig. 3 and 4 where the possible third flap (1) is folded completely over the flap (k) of the envelope and assembled with a fastening line (q) to one of the closed sides of the envelope perhaps by crimping or similar technique.
• the drawing thus shows, according to the invention, a complete disposable packaging ready to use, but before use with an extraction bag sealed in an envelope and with the string (e) rolled up around the label practically placed and fixed between the possible third flap (1) and the envelope.
• Fig. 6 shows the same as fig. 5 with the contents of the envelope: bag, string and label, indicated by the dot-and-dash line.
• Fig. 7 shows the packaging of fig. 6 with the possible third flap (1) opened along the fastening line (q) and unfolded along the side (o) of the triangle while the string (e) is untwisted from the label (f) .
• the extraction bag (a) is torn partly out of the envelope, ready for use.
• Fig. 8 shows the invention in practical use, where the possible third flap (1) is folded along the side (o) of the triangle to the second flap (j) of the envelope so that the triangular envelope now forms a funnel into which the used extraction bag (a) by a vertical pull in the label (f) and string (e) is caught up naturally.
• the embodiment makes it possible to seal completely the used extraction bag by repeating the movements of the third flap (1) as shown in fig. 6 and 7, only in reverse order.
• the fastening line (q) of the envelope can possibly be provided with a light gluing or similar so that the flap (1) can be re-fastened and kept to the envelope.
• Fig. 9 shows the same as fig. 5 with the contents of the envelope: bag and string, indicated by the dot-and-dash line.
• the folding line (o) shown in fig. 6 has in this version been replaced by a perforated tearing off line (r) .
• Fig. 10 shows the packaging of fig. 9 with the possible third flap (1) opened from the envelope (j and k) and unfolded along the perforated line (r) with the string (e) visible, fixed (s) to the inner side of the third flap (1) .
• the extraction bag (a) is torn partly out of the envelope, ready for use.
• Fig. 11 shows the invention in practical use where the possible third flap (1) with the attached string (e) is torn off the flaps (j and k) of the envelope along the perforated line (r) in such a way that the triangular envelope now forms a funnel into which the used extraction bag (a) by a vertical pull in the torn off flap (f) of the envelope and string (e) can be caught up in a natural way.

Landscapes

• Engineering & Computer Science (AREA)
• Mechanical Engineering (AREA)
• Packages (AREA)
• Tea And Coffee (AREA)
• Laminated Bodies (AREA)
• Wrappers (AREA)

Applications Claiming Priority (4)

Publications (2)

Family

ID=8090170

Family Applications (1)

Country Status (6)

Families Citing this family (6)

Family Cites Families (6)

• 1995
  • 1995-02-07 DK DK013795A patent/DK13795A/da not_active Application Discontinuation
• 1996
  • 1996-01-31 WO PCT/DK1996/000053 patent/WO1996023713A1/en active IP Right Grant
  • 1996-01-31 DE DE69602081T patent/DE69602081T2/de not_active Expired - Fee Related
  • 1996-01-31 AU AU44831/96A patent/AU4483196A/en not_active Abandoned
  • 1996-01-31 AT AT96900892T patent/ATE178866T1/de not_active IP Right Cessation
  • 1996-01-31 EP EP96900892A patent/EP0807079B1/de not_active Expired - Lifetime
  • 1996-01-31 DK DK96900892T patent/DK0807079T3/da active

Non-Patent Citations (1)

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