EP3076807B1 - Tobacco pouch - Google Patents
Tobacco pouch Download PDFInfo
- Publication number
- EP3076807B1 EP3076807B1 EP14805854.8A EP14805854A EP3076807B1 EP 3076807 B1 EP3076807 B1 EP 3076807B1 EP 14805854 A EP14805854 A EP 14805854A EP 3076807 B1 EP3076807 B1 EP 3076807B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- pouch
- closure strip
- tobacco
- channel
- 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.)
- Active
Links
- 235000002637 Nicotiana tabacum Nutrition 0.000 title claims description 43
- 244000061176 Nicotiana tabacum Species 0.000 title 1
- 241000208125 Nicotiana Species 0.000 claims description 42
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 24
- 239000000463 material Substances 0.000 claims description 19
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 14
- 229910052760 oxygen Inorganic materials 0.000 claims description 14
- 239000001301 oxygen Substances 0.000 claims description 14
- 238000000034 method Methods 0.000 claims description 13
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 12
- 239000001569 carbon dioxide Substances 0.000 claims description 12
- 239000003292 glue Substances 0.000 claims description 11
- 239000004698 Polyethylene Substances 0.000 claims description 9
- 239000012530 fluid Substances 0.000 claims description 9
- 229920000573 polyethylene Polymers 0.000 claims description 9
- 229920000139 polyethylene terephthalate Polymers 0.000 claims description 8
- 239000005020 polyethylene terephthalate Substances 0.000 claims description 8
- 238000004891 communication Methods 0.000 claims description 7
- -1 polyethylene terephthalate Polymers 0.000 claims description 7
- 230000005540 biological transmission Effects 0.000 claims description 4
- 239000005026 oriented polypropylene Substances 0.000 claims description 4
- 230000000717 retained effect Effects 0.000 claims description 4
- 238000007789 sealing Methods 0.000 claims description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 2
- 230000007423 decrease Effects 0.000 description 3
- 239000007789 gas Substances 0.000 description 3
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 238000010561 standard procedure Methods 0.000 description 2
- 235000013399 edible fruits Nutrition 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000012815 thermoplastic material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F23/00—Cases for tobacco, snuff, or chewing tobacco
- A24F23/02—Tobacco pouches
-
- 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
- B65D33/00—Details of, or accessories for, sacks or bags
- B65D33/01—Ventilation or drainage of 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
- B65D2205/00—Venting means
Definitions
- the present invention relates to a tobacco pouch which can be used to store tobacco for long periods of time.
- Tobacco for roll-your-own or make-your-own smoking items is typically stored in a sealed pouch made from a metallised or non-metallised material.
- An example of such a pouch comprises a closure strip that seals the tobacco content for transport and which can be broken by a user to access the contents when necessary.
- the length of the closure strip 4 is from 65 mm to 145 mm. Most preferably, the length of the closure strip is from 70 mm to 80 mm, from 110 mm to 120 mm or from 130 mm to 140 mm.
- the pouch 1 may further comprise a flap 6 which extends from the mouth 3 which is capable of folding over the pocket 2.
- the flap 6 is turned over against the pocket 2 of the pouch 1 and may be detachably connected with an adhesive.
- the method according to the present invention can comprise forming the pouch from a sheet of material, wherein the material is as described above.
- the pouch is conventionally formed from a rectangular sheet of material which is folded over itself and welded together at the edges to form a pocket where the tobacco is to be kept. A portion of the rectangular sheet extending beyond the mouth of the pocket forms a flap capable of folding over the pocket. A strip of heat activatable glue is then placed along the mouth of the pocket thereby forming a strip capable of being closed.
- a recess is located along the closure strip which may comprise the heat activatable glue.
- the term "recess" is to be understood as a portion of the closure strip deprived from heat activatable glue.
- closure strip Once the closure strip is sealed, it can be opened by a consumer by applying a force to either side of the pocket. However, when the seal has been broken, it cannot be resealed.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Packages (AREA)
- Packaging Of Annular Or Rod-Shaped Articles, Wearing Apparel, Cassettes, Or The Like (AREA)
Description
- The present invention relates to a tobacco pouch which can be used to store tobacco for long periods of time.
- Tobacco for roll-your-own or make-your-own smoking items is typically stored in a sealed pouch made from a metallised or non-metallised material. An example of such a pouch comprises a closure strip that seals the tobacco content for transport and which can be broken by a user to access the contents when necessary.
- One problem associated with using sealed pouches (particularly pouches made from a metallised material) to store tobacco is that when the pouches of tobacco are stored at higher temperatures, for example in warm climates, the tobacco tends to generate a bad odour over extended periods of time (e.g., over a few months). Therefore, when a consumer opens a pouch which has been stored under such conditions, the bad odour reveals itself and this results in an unpleasant smoking experience.
- Therefore, there is a need to provide a pouch (particularly a pouch made from a metallised material) for storing tobacco such that, even if it is stored at higher temperatures, the tobacco does not develop a bad odour. Of course, it is also desirable for the production of such a modified pouch to be simple, reliable and cost-effective.
-
- A first aspect of the invention provides a method of producing a pouch containing tobacco, wherein the method comprises the steps of: providing a pouch comprising a pocket having a mouth for providing access to the interior of the pocket and having a closure strip extending along the mouth; filling the pocket with tobacco via the mouth; and sealing the closure strip such that at least one channel is retained to allow for fluid communication between the interior and exterior of the pocket. Preferably, the closure strip is not resealable.
- A second aspect of the invention provides pouch for containing tobacco, obtainable by the above-mentioned method.
- A third aspect of the invention provides a heater bar for use in the method according to the first aspect.
-
-
Figure 1 illustrates a pouch according to the prior art wherein the closure strip is completely sealed all the way across its opening such that fluid cannot exchange between the interior and exterior of the pouch. -
Figure 2 illustrates a pouch according to the invention comprising a channel in the closure strip which allows for fluid communication between the interior and exterior of the pouch. -
Figure 3 illustrates a pouch according to the invention comprising two channels in the closure strip. -
Figure 4 illustrates a cross-section of a pouch according to the invention. -
Figure 5 illustrates a modified heater bar which is used in the method according to the invention to seal the pouches. -
Figures 6 to 11 illustrate several comparisons between the pouch according to the invention and a known tobacco pouch. -
Figure 1 shows a known tobaccometallised pouch 1 with aseal 4 that extends across themouth 3. Thepouch 1 has aflap 6 that a user can fold over themouth 3. It is believed that in a completely sealed pouch with no channels, such as thepouch 1 shown inFigure 1 , oxygen content decreases and carbon dioxide content increases on storage, which in turn gives rise to the tobacco generating a bad odour. The present inventors have found that this is attributed to the fact that tobacco pouches are typically made from material having low gas permeability. The present inventors have found that this effect is increased in warmer climates (i.e. above 27 °C) where the pouch is exposed to higher temperatures for extended periods. Therefore, the present inventors have found that by controlling the oxygen and carbon dioxide content within the pouch, the tobacco contained therein remains fresher for longer such that it can be stored over extended periods of time. -
Figures 2 to 4 depict apouch 1 for containing tobacco, having aclosure strip 4 across themouth 3 of the pouch wherein themouth 3 is used to provide access to thepocket 2 where the tobacco is contained. Theclosure strip 4 is sealed such that achannel 5 is retained. Thechannel 5 allows for fluid communication between the interior and exterior of thepocket 2 which contains the tobacco. InFigure 3 , an alternative embodiment of the present invention is depicted wherein theclosure strip 4 comprises twochannels 5. - In
Figures 2 and3 , thechannels 5 are shown to be positioned towards one end of theclosure strip 4. However, thechannels 5 can be positioned anywhere along theclosure strip 4. Preferably, theclosure strip 4 comprises at least onechannel 5, although theclosure strip 4 may comprise at least twochannels 5 or at least three or fivechannels 5. Preferably, where theclosure strip 4 contains only onechannel 5, thechannel 5 is positioned towards one end of theclosure strip 4. - The
channel 5 can be from 1.0 % to 12.5 % of the length of theclosure strip 4, preferably from 3.0 % to 9.0 %, most preferably from 3.5 % to 7.0 %. When theclosure strip 4 comprises at least two (or more) channels, the total channel opening is from 1.0 % to 12.5 % of the length of theclosure strip 4, preferably from 3.0 % to 9.0 %, most preferably from 3.5 % to 7.0 %. - The
channel 5 can be from 2 mm to 10 mm of theclosure strip 4. Preferably, where theclosure strip 4 comprises only onechannel 5, the channel is from 3 mm to 7 mm, and more preferably it is 5 mm. When theclosure strip 4 comprises at least two (or more) channels, the total channel opening is from 3 mm to 7 mm, and preferably 5 mm. - Preferably, the length of the
closure strip 4 is from 65 mm to 145 mm. Most preferably, the length of the closure strip is from 70 mm to 80 mm, from 110 mm to 120 mm or from 130 mm to 140 mm. - As shown in
Figure 4 , thepouch 1 may further comprise aflap 6 which extends from themouth 3 which is capable of folding over thepocket 2. When thepouch 1 is closed, theflap 6 is turned over against thepocket 2 of thepouch 1 and may be detachably connected with an adhesive. - The pouch can be formed from a sheet or film of a thermoplastic material such as a polyolefin, e.g. polyethylene. However, the pouch is preferably made of a metallised material comprising oriented polypropylene (OPP), polyethylene terephthalate (PET), metallised polyethylene terephthalate (MPET), polyethylene (PE) or any combination thereof. Preferably, the pouch is made of a material comprising OPP, MPET and PE or PET, MPET and PE. The advantage associated with using a metallised material over a non-metallised material is that the tobacco is kept moist for longer periods of time.
- The pouch material typically has an oxygen transmission rate (OTR) in the range of from 1 to 800 cm3/m2/24h/1atm, preferably from 1 to 400 cm3/m2/24h/1atm, most preferably from 1 to 200 cm3/m2/24h/1atm. OTR values can be calculated according to the standard method ASTM D3985. In addition, the pouch material typically has a water vapour transmission rate (WVTR) of from 0.1 to 4 g/m2/day, preferably from 0.2 to 3.5 g/m2/day. WVTR values can be calculated according to the standard method ASTM F1249.
- The method according to the present invention can comprise forming the pouch from a sheet of material, wherein the material is as described above. The pouch is conventionally formed from a rectangular sheet of material which is folded over itself and welded together at the edges to form a pocket where the tobacco is to be kept. A portion of the rectangular sheet extending beyond the mouth of the pocket forms a flap capable of folding over the pocket. A strip of heat activatable glue is then placed along the mouth of the pocket thereby forming a strip capable of being closed.
- Once the pouch has been formed from the sheet of material, the pocket of the pouch is filled with tobacco via the mouth. After filling of the pouch with tobacco, the closure strip is then sealed such that at least one channel is retained to allow for fluid communication between the interior and exterior of the pocket of the pouch; for example, to allow for the exchange of oxygen and carbon dioxide between the interior and exterior of the pocket of the pouch.
- Preferably, the closure strip comprises heat activatable glue such that when the closure strip is heated, the glue is activated thereby providing a seal. The closure strip comprising the heat activatable glue can be heated using a
metal heater bar 8 as shown inFigure 5 which, when pressed against the closure strip, activates the glue. In a preferred embodiment, the closure strip is not resealable. - It can be seen from
Figure 5 that theheater bar 8 comprises arecess 9 such that when pressed against the closure strip, a portion of the closure strip comprising the heat activatable glue is not heated. This portion which is not (or less) heated gives rise to the channel allowing for fluid communication between the interior and exterior of the pouch. For example, if a channel of 5 mm of the closure strip is required, the recess will be 5 mm in width. In an alternative embodiment (not depicted), the heater bar may comprise more than one recess if more than one channel is required. - In an alternative and preferred embodiment, instead of having the recess on the heater bar, a recess is located along the closure strip which may comprise the heat activatable glue. In this alternative embodiment, the term "recess" is to be understood as a portion of the closure strip deprived from heat activatable glue. Thus in this embodiment, instead of modifying the heater bar so as not to completely seal the pouch, the modification is made to the closure strip; i.e., where the heat activatable glue is deposited along the closure strip so that at least one air channel can be formed.
- Thus, instead of modifying the machine used to close the pouches, it is possible to use non sealed pouches with a closure strip where the heat activatable glue is not deposited continuously along the closure strip so that at least one air channel can be formed, i.e., the channel is formed at the position where no adhesive is present along the closure.
- Once the closure strip is sealed, it can be opened by a consumer by applying a force to either side of the pocket. However, when the seal has been broken, it cannot be resealed.
- The moisture content of tobacco in a metallised pouch of the present invention (as depicted in
Figure 2 ) having a channel of 5 mm in the closure strip (115 mm long) was analysed over a period of six months. In addition, and by way of comparison, the moisture content of tobacco in a completely sealed metallised pouch was analysed over the same period. Tobacco moisture content was measured at 22°C/60%RH and 27°C/47%RH using a Borgwaldt F21 instrument. -
Figures 6 and 7 show that the moisture content of the tobacco in the sealed metallised pouch and the pouch according to the invention remains between the moisture tolerance levels for tobacco under both conditions. - The oxygen content within a metallised pouch of the present invention (as depicted in
Figure 2 ) containing tobacco and having a channel of 5 mm in the closure strip was analysed over a period of six months. In addition, and by way of comparison, the oxygen content within a completely sealed metallised pouch containing tobacco was analysed over the same period. The oxygen content was measured at 22°C/60%RH and 27°C/47%RH using a PBI Dansensor Checkpoint Handled Gas Analyser. - It can be seen, from
Figures 8 and9 , that oxygen content decreases more rapidly at 27°C/47%RH than at 22°C/60%RH when the pouch is completely sealed. However, it can be seen that the oxygen content within a pouch according to the invention remains consistent over the six-month period. - The carbon dioxide content within a metallised pouch of the present invention (as depicted in
Figure 2 ) containing tobacco and having a channel of 5 mm in the closure strip was analysed over a period of six months. In addition, and by way of comparison, the carbon dioxide content within a completely sealed metallised pouch containing tobacco was analysed over the same period. The carbon dioxide content was measured at 22°C/60%RH and 27°C/47%RH using a PBI Dansensor Checkpoint Handled Gas Analyser. - It can be seen from
Figures 10 and11 that the carbon dioxide content steadily increases over the six-month period. However, it can also be seen that the carbon dioxide content within a pouch according to the invention remains constant and low throughout the six-month period. - It has been found that in warmer conditions, tobacco stored for long periods of time within a pouch according to the invention does not exhibit a bad aroma in comparison to tobacco stored over the same period of time within a completely sealed pouch, where the tobacco generates an unacceptable "rotten fruit" aroma.
- It is believed that the unacceptable aroma is a direct result of a lack of oxygen and generation of carbon dioxide within the pouch containing tobacco. As can be seen from
Figures 8 to 11 , the pouch of the invention maintains an ideal aerobic environment for the tobacco and therefore the unacceptable aroma does not arise. In contrast, in the completely sealed pouch, the oxygen content in the pouch decreases rapidly to zero and the carbon dioxide content increases steadily (these trends are enhanced at higher temperatures and lower humidity) resulting in an anaerobic environment and therefore generation of the aforementioned unacceptable aroma.
Claims (15)
- A method of producing a pouch (1) containing tobacco, wherein the method comprises the steps of:providing a pouch comprising a pocket (2) having a mouth (3) for providing access to the interior of the pocket and having a closure strip (4) extending along the mouth;filling the pocket with tobacco via the mouth; andsealing the closure strip such that at least one channel (5) is retained to allow for fluid communication between the interior and exterior of the pocket.
- The method according to claim 1, wherein the method further comprises the preliminary step of forming the pouch (1) from a sheet of material.
- The method according to claim 1 or 2, wherein the sealing is heat sealing.
- The method according to any one of claims 1 to 3, wherein the closure strip (4), once opened, is not resealable.
- A pouch (1) containing tobacco, obtainable by the method according to any one of claims 1 to 4.
- The pouch (1) according to claim 5, wherein the pouch is made of material comprising oriented polypropylene (OPP), polyethylene terephthalate (PET), metallised polyethylene terephthalate (MPET), polyethylene (PE) or any combination thereof.
- The pouch (1) according to claim 6, wherein the pouch is made of material comprising OPP, MPET and PE or PET, MPET and PE.
- The pouch (1) according to any one of claims 5 to 7, wherein the closure strip (4) comprises a heat activatable glue.
- The pouch (1) according to any one of claims 5 to 8, wherein the closure strip (4) comprises at least one or at least two channels (5) to allow for fluid communication between the interior and exterior of the pocket (2).
- The pouch (1) according to any one of claims 5 to 9, wherein the length of the at least one channel (5) or two channels extends from 1.0 % to 12.5 % of the length of the closure strip (4), preferably from 3.0 % to 9.0 %, most preferably from 3.5 % to 7.0 %.
- The pouch (1) according to any one of claims 5 to 9, wherein the channel(s) (5) is(are) from 2 mm to 10 mm of the closure strip, preferably from 3 mm to 7 mm, most preferably 5 mm.
- The pouch (1) according to any one of claims 5 to 11, wherein the pouch material has an oxygen transmission rate (OTR) value comprised between 1 and 800 cm3/m2/24h/1atm, preferably between 1 and 400 cm3/m2/24h/1atm.
- The pouch (1) according to any one of claims 5 to 11, wherein the pouch material has a water vapour transmission rate (WVTR) value comprised between 0.1 and 4 g/m2/day, preferably between 0.2 and 3.5 g/m2/day.
- The pouch (1) according to any one of claims 5 to 13, further comprising a flap (6) extending from the mouth (3) capable of folding over the pocket (2) which, when the pouch is closed, is turned over against the pocket and is detachably connected.
- The pouch (1) according to any one of claims 5 to 14, wherein the fluid comprises oxygen and/or carbon dioxide.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP14805854.8A EP3076807B1 (en) | 2013-12-05 | 2014-11-27 | Tobacco pouch |
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP13195928 | 2013-12-05 | ||
PCT/EP2014/075830 WO2015082308A1 (en) | 2013-12-05 | 2014-11-27 | Tobacco pouch |
EP14805854.8A EP3076807B1 (en) | 2013-12-05 | 2014-11-27 | Tobacco pouch |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3076807A1 EP3076807A1 (en) | 2016-10-12 |
EP3076807B1 true EP3076807B1 (en) | 2018-06-13 |
Family
ID=49816783
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP14805854.8A Active EP3076807B1 (en) | 2013-12-05 | 2014-11-27 | Tobacco pouch |
Country Status (3)
Country | Link |
---|---|
EP (1) | EP3076807B1 (en) |
ES (1) | ES2686720T3 (en) |
WO (1) | WO2015082308A1 (en) |
Family Cites Families (8)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
AU436866B2 (en) * | 1968-07-01 | 1973-06-14 | Focke Heinz | Pouch made from plastics sheets more particularly for holding tobacco |
BE885932A (en) * | 1979-10-29 | 1981-02-16 | Raackmanns Fab As | TOBACCO JACK COMPRISING A BOX-SHAPED PART AND METHOD FOR THE PRODUCTION THEREOF |
DE3621813A1 (en) * | 1986-06-28 | 1988-01-07 | Focke & Co | FLEXIBLE SHEET BAG |
US20050079308A1 (en) * | 2003-10-08 | 2005-04-14 | Kazuya Tanaka | Evacuable bag |
EP2000411A1 (en) * | 2007-06-04 | 2008-12-10 | Sealed Air S.A.S. | Heat sealing and cutting device |
US20090226573A1 (en) * | 2008-03-07 | 2009-09-10 | Alejandro Gonzalez Leon | Package for granular compositions |
DE102011105014A1 (en) * | 2011-06-08 | 2012-12-13 | Focke & Co. (Gmbh & Co. Kg) | Bag for tobacco and method and apparatus for manufacturing |
DE102011053275A1 (en) * | 2011-09-05 | 2013-03-07 | Nordenia Deutschland Halle Gmbh | tobacco pouch |
-
2014
- 2014-11-27 ES ES14805854.8T patent/ES2686720T3/en active Active
- 2014-11-27 EP EP14805854.8A patent/EP3076807B1/en active Active
- 2014-11-27 WO PCT/EP2014/075830 patent/WO2015082308A1/en active Application Filing
Non-Patent Citations (1)
Title |
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None * |
Also Published As
Publication number | Publication date |
---|---|
EP3076807A1 (en) | 2016-10-12 |
ES2686720T3 (en) | 2018-10-19 |
WO2015082308A1 (en) | 2015-06-11 |
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