EP3373750A1 - Humidifying device - Google Patents
Humidifying deviceInfo
- Publication number
- EP3373750A1 EP3373750A1 EP16800903.3A EP16800903A EP3373750A1 EP 3373750 A1 EP3373750 A1 EP 3373750A1 EP 16800903 A EP16800903 A EP 16800903A EP 3373750 A1 EP3373750 A1 EP 3373750A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- water
- tobacco
- evaporating
- moisture
- 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.)
- Granted
Links
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/04—Humidifying or drying tobacco bunches or cut tobacco
Definitions
- the present invention relates to a humidifying device for increasing the moisture content of tobacco.
- Moisture content is an important parameter of the chemical composition of tobacco.
- the moisture content of tobacco may affect various properties of the material, including:
- the moisture content of tobacco can be controlled and optimised using a humidifying device, which transfers water vapour to the tobacco material.
- a humidifying device which transfers water vapour to the tobacco material.
- Such humidifying devices are known in the art and are commercially available in the form of pads, for example from EssentraTM.
- tobacco humidifying devices known in the art do not achieve optimal increases/control of tobacco moisture content, particularly in low- and mid-moisture tobacco blends.
- a first aspect of the invention provides a humidifying device for increasing the moisture content of tobacco, wherein the device comprises a porous wrapper arranged to form a pocket, wherein multiple water-evaporating pieces are located within said pocket, and wherein the porous wrapper allows for water retention within the pocket and fluid communication between the interior and exterior of the pocket.
- a second aspect of the invention provides a pouch comprising tobacco and a humidifying device according to the first aspect of the invention wherein, in use, the humidifying device increases the moisture content of the tobacco.
- Figure 1 a is a graph showing changes in the moisture content (%) of tobacco resulting from daily application of water to the three test devices over a period of four days. Each device was tested in triplicate (Pouches P1 -P3). The reference is a tobacco pouch with no humidifying device inserted. Figures 1 b, 1 c and 1 d present these results for each of the three test devices, individually.
- Figure 2 is a graph showing the daily tobacco moisture increases after water addition on days 2, 3 and 4 of the test period. Each of the three devices was tested in triplicate (Pouches P1 -P3).
- Figure 3 is a graph showing the changes in the weight of the each of the three humidifying devices before and after addition of water on each of the four days of the test period. Each of the three devices was tested in triplicate (Pouches P1 -P3).
- Figure 4 is a graph showing moisture loss from each of the three humidifying devices over a period of 7 hours from the point at which water is added to each device. Each of the three devices was tested in triplicate (Pouches P1 -P3). Detailed Description of the Invention
- the first aspect of the present invention provides a humidifying device for increasing the moisture content of tobacco.
- the device is suitable for increasing the moisture content of low- and mid-moisture tobacco blends, such as blends used in Roll Your Own (RYO) and Make Your Own (MYO) tobacco products.
- the aim of the device of the present invention is to achieve increases in tobacco moisture of 2-3 wt%. Additive-free tobacco blends are produced at low moisture levels because producing these blends at normal RYO moisture (-18%) increases the propensity for mould. Allowing the customer to increase moisture after purchase reduces the potential for mould and provides a smoother smoke taste.
- the humidifying device comprises a porous wrapper arranged to form a pocket and multiple water-evaporating pieces are located within the pocket.
- the porous wrapper allows water to be retained within the pocket and also allows fluid communication between the interior and exterior of the pocket, such that water, or water vapour, can be transmitted to the environment outside the pocket which, when the device is in use, is where the tobacco is located.
- Water can be applied directly to the water-evaporating pieces or water can be applied to the water-evaporating pieces indirectly, via the porous wrapper. Both the water-evaporating pieces and the porous wrapper are re- fillable with water (i.e. the device can be 'topped-up' with water as often as required).
- the term 'porous wrapper' refers to a porous material that forms a pocket that surrounds the water-evaporating pieces.
- the wrapper may be sealable or re-sealable.
- the porous wrapper adsorbs and evaporates water.
- the porous wrapper has a water capacity of at least 0.10 gsm, preferably at least 0.16 gsm.
- water capacity' refers to the range or amount of water that can be stored in the porous wrapper and can be emitted via the process of evaporation.
- the porous wrapper may be made from any suitable material, including, but not limited to, viscose, cellulosic fibres, polylactic acid fibres and/or thermoplastic fibres. In a preferred embodiment, the porous wrapper may be made from viscose.
- the pocket has dimensions of approximately 40mm x 20mm.
- the term 'water-evaporating piece' refers to a material that is capable of absorbing water and from which water can be emitted by evaporation.
- the terms 'piece' and 'granule' are used interchangeably herein.
- the water-evaporating piece preferably has a water capacity of at least 0.25 gsm, and more preferably at least 0.32 gsm.
- the term 'water capacity' refers to the range or amount of water that can be stored in the water- evaporating piece and can be emitted via the process of evaporation.
- the water release rate of the device changes over time.
- the device of the invention has a water release rate of around 0.2gms over a period of 4 hours.
- a water release rate of around 0.2gms over a period of 4 hours.
- around 40-45% of the moisture is released from the device during the first hour.
- the water release rate of the device can be determined by weighing the device at time intervals.
- the water-evaporating piece can be made from any suitable material meeting the above mentioned requirements, such as natural and/or synthetic materials, comprising (but not exclusively) a polymer, in particular polyolefin, preferably polyethylene or polypropylene, a cellulosic material or a combination thereof.
- the water-evaporating piece may, for example, comprise polyethylene terephthalate (PET) and/or polylactic acid (PLA).
- PET polyethylene terephthalate
- PLA polylactic acid
- the water-evaporating piece may comprise cellulose and/or paper and/or cotton.
- the water-evaporating piece may be porous.
- the water-evaporating piece may be sponge material.
- the water-evaporating piece may be continuous.
- the pocket contains at least 10 water-evaporating pieces, and preferably at least 20 water-evaporating pieces.
- the water-evaporating piece can be any suitable size or shape. In a preferred embodiment the water-evaporating piece has a uniform shape. Preferably, the water-evaporating piece has dimensions of approximately 2mm x 5mm, more preferably the water-evaporating piece has dimensions of 2.01 mm diameter x 5.17mm length.
- the second aspect of the invention provides a pouch comprising tobacco and a humidifying device according to the first aspect, as defined above.
- the humidifying device increases the moisture content of the tobacco.
- the pouch may be a paper insert pouch or any form of laminate pouch.
- materials used to produce laminate tobacco pouches include oriented polypropylene/polyethylene (OPP/PE) laminate plastic, nylon 1 1 , high- density polyethylene (HDPE), polypropylene (PP), low-density polyethylene (LDPE) and polyethylene terephthalate (PET).
- OPP/PE oriented polypropylene/polyethylene
- HDPE high- density polyethylene
- PP polypropylene
- LDPE low-density polyethylene
- PET polyethylene terephthalate
- moisture content refers to the amount of moisture (i.e. water) present in a given material.
- references to the moisture content may relate to the tobacco material or to the water-evaporating pieces.
- Values for moisture content are wt% values. For the avoidance of doubt, these wt% values are based on the total weight of the relevant component only. For example, if it is stated that the tobacco has a moisture content of 19.6wt%, this is based on the total weight of the tobacco component only.
- the pouch of the invention when the pouch of the invention is in use, at least 55% of the water content of the humidifying device is transferred to the tobacco over a period of one hour.
- the moisture content of the tobacco is increased by 1.2 wt% to 1.4 wt% over a period of 24 hours.
- the term 'tobacco' includes all forms of tobacco, including leaf, STEM, expanded tobacco blend and reconstituted tobacco blend.
- the tobacco is suitable for use in Roll Your Own (RYO) and Make Your Own (MYO) tobacco products.
- the device of the present invention is particularly suitable for increasing the moisture content of low- moisture or mid-moisture tobacco blends.
- Test Method - Granulated pad in pouch variants The water-evaporating pieces used in this experiment are granules prepared by shredding EssentraTM pads. EssentraTM pads are commercially available from http://www.essentra.com. The objective of the experiment was to determine the increase in tobacco moisture when water is applied to devices containing (i) 20 Essentra granules and (ii) 10 Essentra granules, compared with (iii) an equivalent weight of unshredded pad.
- the quantity of material in (i) and (ii) is based on the weight of 25% and 12.5% of the shredded EssentraTM moisture pad, respectively.
- the tobacco used for this experimental work was a low-moisture additive-free blend with an average starting moisture of 15.7wt%.
Landscapes
- Manufacture Of Tobacco Products (AREA)
Abstract
Description
Claims
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PL16800903T PL3373750T3 (en) | 2015-11-12 | 2016-11-11 | Humidifying device |
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
EP15194254 | 2015-11-12 | ||
PCT/EP2016/077458 WO2017081267A1 (en) | 2015-11-12 | 2016-11-11 | Humidifying device |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3373750A1 true EP3373750A1 (en) | 2018-09-19 |
EP3373750B1 EP3373750B1 (en) | 2020-07-29 |
Family
ID=54542050
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP16800903.3A Active EP3373750B1 (en) | 2015-11-12 | 2016-11-11 | Humidifying device |
Country Status (4)
Country | Link |
---|---|
EP (1) | EP3373750B1 (en) |
ES (1) | ES2818188T3 (en) |
PL (1) | PL3373750T3 (en) |
WO (1) | WO2017081267A1 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112273696A (en) * | 2020-10-30 | 2021-01-29 | 红云红河烟草(集团)有限责任公司 | Method, device and equipment for controlling moisture after shredding |
Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE2625161C2 (en) * | 1976-06-04 | 1984-11-08 | Wilh. Quester Maschinenfabrik GmbH, 5000 Köln | Method and control device for controlling the moisture content of tobacco |
JPS6024171A (en) * | 1983-07-21 | 1985-02-06 | 日本たばこ産業株式会社 | Controller of moisture and temperature in tobacco moisture conditioning machine |
BG45415A1 (en) * | 1986-03-17 | 1989-06-15 | Tjutjunev Kom Rodopi | Method and installation for freafing of unferment tobacco |
GB0710773D0 (en) * | 2007-06-05 | 2007-07-18 | British American Tobacco Co | Humidifying capsule for use with tobacco products |
GB0710776D0 (en) * | 2007-06-05 | 2007-07-18 | British American Tobacco Co | Heatable humidifying device for use with tobacco products |
-
2016
- 2016-11-11 PL PL16800903T patent/PL3373750T3/en unknown
- 2016-11-11 ES ES16800903T patent/ES2818188T3/en active Active
- 2016-11-11 EP EP16800903.3A patent/EP3373750B1/en active Active
- 2016-11-11 WO PCT/EP2016/077458 patent/WO2017081267A1/en unknown
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN112273696A (en) * | 2020-10-30 | 2021-01-29 | 红云红河烟草(集团)有限责任公司 | Method, device and equipment for controlling moisture after shredding |
Also Published As
Publication number | Publication date |
---|---|
PL3373750T3 (en) | 2020-12-28 |
EP3373750B1 (en) | 2020-07-29 |
WO2017081267A1 (en) | 2017-05-18 |
ES2818188T3 (en) | 2021-04-09 |
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