CN114302654B - Aerosol generating article and aerosol generating system - Google Patents
Aerosol generating article and aerosol generating system Download PDFInfo
- Publication number
- CN114302654B CN114302654B CN202180004669.6A CN202180004669A CN114302654B CN 114302654 B CN114302654 B CN 114302654B CN 202180004669 A CN202180004669 A CN 202180004669A CN 114302654 B CN114302654 B CN 114302654B
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- aerosol
- tobacco
- generating article
- generating
- media portion
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- 239000000443 aerosol Substances 0.000 title claims description 33
- 241000208125 Nicotiana Species 0.000 claims abstract description 164
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 164
- 239000000843 powder Substances 0.000 claims abstract description 97
- 239000000203 mixture Substances 0.000 claims abstract description 59
- 238000010438 heat treatment Methods 0.000 claims description 40
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- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 2
- GVJHHUAWPYXKBD-UHFFFAOYSA-N (±)-α-Tocopherol Chemical compound OC1=C(C)C(C)=C2OC(CCCC(C)CCCC(C)CCCC(C)C)(C)CCC2=C1C GVJHHUAWPYXKBD-UHFFFAOYSA-N 0.000 description 2
- CIWBSHSKHKDKBQ-JLAZNSOCSA-N Ascorbic acid Chemical compound OC[C@H](O)[C@H]1OC(=O)C(O)=C1O CIWBSHSKHKDKBQ-JLAZNSOCSA-N 0.000 description 2
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 2
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 description 2
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 2
- 229910000990 Ni alloy Inorganic materials 0.000 description 2
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- 229920002301 cellulose acetate Polymers 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005294 ferromagnetic effect Effects 0.000 description 2
- 239000003205 fragrance Substances 0.000 description 2
- 229910002804 graphite Inorganic materials 0.000 description 2
- 239000010439 graphite Substances 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 229940041616 menthol Drugs 0.000 description 2
- 229910052750 molybdenum Inorganic materials 0.000 description 2
- 239000011733 molybdenum Substances 0.000 description 2
- 239000006199 nebulizer Substances 0.000 description 2
- 229910052758 niobium Inorganic materials 0.000 description 2
- 239000010955 niobium Substances 0.000 description 2
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-UHFFFAOYSA-N 0.000 description 2
- 239000013618 particulate matter Substances 0.000 description 2
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 2
- 229910010271 silicon carbide Inorganic materials 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 229930003231 vitamin Natural products 0.000 description 2
- 239000011782 vitamin Substances 0.000 description 2
- 235000013343 vitamin Nutrition 0.000 description 2
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- 150000003722 vitamin derivatives Chemical class 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 1
- ALSTYHKOOCGGFT-KTKRTIGZSA-N (9Z)-octadecen-1-ol Chemical compound CCCCCCCC\C=C/CCCCCCCCO ALSTYHKOOCGGFT-KTKRTIGZSA-N 0.000 description 1
- ZOXJGFHDIHLPTG-UHFFFAOYSA-N Boron Chemical compound [B] ZOXJGFHDIHLPTG-UHFFFAOYSA-N 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- ZZZCUOFIHGPKAK-UHFFFAOYSA-N D-erythro-ascorbic acid Natural products OCC1OC(=O)C(O)=C1O ZZZCUOFIHGPKAK-UHFFFAOYSA-N 0.000 description 1
- 244000246386 Mentha pulegium Species 0.000 description 1
- 235000016257 Mentha pulegium Nutrition 0.000 description 1
- 235000004357 Mentha x piperita Nutrition 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- UWHCKJMYHZGTIT-UHFFFAOYSA-N Tetraethylene glycol, Natural products OCCOCCOCCOCCO UWHCKJMYHZGTIT-UHFFFAOYSA-N 0.000 description 1
- 229930003270 Vitamin B Natural products 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
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- 235000019568 aromas Nutrition 0.000 description 1
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- 239000001913 cellulose Substances 0.000 description 1
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- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000013461 design Methods 0.000 description 1
- SZXQTJUDPRGNJN-UHFFFAOYSA-N dipropylene glycol Chemical compound OCCCOCCCO SZXQTJUDPRGNJN-UHFFFAOYSA-N 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 239000008369 fruit flavor Substances 0.000 description 1
- WIGCFUFOHFEKBI-UHFFFAOYSA-N gamma-tocopherol Natural products CC(C)CCCC(C)CCCC(C)CCCC1CCC2C(C)C(O)C(C)C(C)C2O1 WIGCFUFOHFEKBI-UHFFFAOYSA-N 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 235000001050 hortel pimenta Nutrition 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 239000001683 mentha spicata herb oil Substances 0.000 description 1
- 229910052752 metalloid Inorganic materials 0.000 description 1
- 150000002738 metalloids Chemical class 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 229910001120 nichrome Inorganic materials 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 229960002715 nicotine Drugs 0.000 description 1
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000019198 oils Nutrition 0.000 description 1
- 229940055577 oleyl alcohol Drugs 0.000 description 1
- XMLQWXUVTXCDDL-UHFFFAOYSA-N oleyl alcohol Natural products CCCCCCC=CCCCCCCCCCCO XMLQWXUVTXCDDL-UHFFFAOYSA-N 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 239000000419 plant extract Substances 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 235000019721 spearmint oil Nutrition 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229910052723 transition metal Inorganic materials 0.000 description 1
- 150000003624 transition metals Chemical class 0.000 description 1
- ZIBGPFATKBEMQZ-UHFFFAOYSA-N triethylene glycol Chemical compound OCCOCCOCCO ZIBGPFATKBEMQZ-UHFFFAOYSA-N 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
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- 235000019154 vitamin C Nutrition 0.000 description 1
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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
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/287—Treatment of tobacco products or tobacco substitutes by chemical substances by inorganic substances only
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
- A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from tobacco
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/18—Treatment of tobacco products or tobacco substitutes
- A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
- A24B15/281—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed
- A24B15/282—Treatment of tobacco products or tobacco substitutes by chemical substances the action of the chemical substances being delayed by indirect addition of the chemical substances, e.g. in the wrapper, in the case
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/20—Devices using solid inhalable precursors
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/50—Control or monitoring
-
- 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
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
Landscapes
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Toxicology (AREA)
- Inorganic Chemistry (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
- Manufacture Of Tobacco Products (AREA)
Abstract
The present invention relates to aerosol-generating articles and aerosol-generating systems. According to some embodiments, an aerosol-generating article can be provided that includes a tobacco media portion made from a mixture including tobacco powder and thermally conductive powder. The mixture may comprise less than 20 wt% of the thermally conductive powder on a dry weight basis.
Description
Technical Field
The present invention relates to an aerosol-generating article comprising a thermally conductive material and an aerosol-generating system.
Background
Recently, the need for alternatives for overcoming the drawbacks of conventional cigarettes is increasing. For example, there is an increasing need for a system for generating an aerosol by heating a cigarette or an aerosol-generating substance with an aerosol-generating device, rather than a method of generating an aerosol by burning a cigarette.
On the other hand, in systems that generate aerosols by heating cigarettes, there is a need to increase the heat transfer efficiency during heating of the cigarettes to provide a sufficient amount of aerosol to the user to provide an optimal smoking experience.
Disclosure of Invention
Problems to be solved by the invention
Various embodiments are directed to an aerosol-generating article comprising a thermally conductive material. The technical problems to be achieved by the present invention are not limited to the technical problems described above, and other technical problems can be inferred from the following embodiments.
Means for solving the problems
Various embodiments can provide an aerosol-generating article comprising: a tobacco medium part made of a mixture containing tobacco powder and heat conductive powder; the mixture comprises less than 20 wt% thermally conductive powder on a dry weight basis.
Various embodiments can provide an aerosol-generating article comprising: a tobacco medium part made of a mixture containing tobacco powder and heat conductive powder; the mixture comprising less than 20 wt% of a thermally conductive powder on a dry weight basis, the thermally conductive powder being distributed closer to a longitudinal axis of the tobacco media portion and having a greater density when the aerosol-generating article is heated by heat transferred from an exterior of the tobacco media portion; or the heat conductive powder is distributed further from the longitudinal axis of the tobacco media portion with a greater density when the aerosol-generating article is heated by heat transferred from the interior of the tobacco media portion.
Various embodiments can provide an aerosol-generating system comprising: an aerosol-generating article comprising a tobacco media portion made from a mixture comprising tobacco powder and thermally conductive powder, the mixture comprising less than 20 wt% thermally conductive powder on a dry weight basis; and an aerosol-generating device comprising a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a control portion for controlling the supply of power from the battery to the heater; the heater is arranged to surround the outside of the tobacco media portion, the heat conductive powder being distributed closer to the longitudinal axis of the tobacco media portion with a greater density; or the heater is arranged to be inserted into the interior of the tobacco media portion, the thermally conductive powder being distributed further from the longitudinal axis of the tobacco media portion with greater density.
Various embodiments can provide an aerosol-generating article comprising: a tobacco medium part made of a mixture containing tobacco powder and heat conductive powder; the mixture comprising less than 20 wt% of a thermally conductive powder on a dry weight basis, the thermally conductive powder being distributed closer to a longitudinal axis of the tobacco media portion and having a greater density when the aerosol-generating article is heated by heat transferred from an exterior of the tobacco media portion; or when the aerosol-generating article is heated by heat transferred from the interior of the tobacco media portion, the thermally conductive powder is distributed further from the longitudinal axis of the tobacco media portion, the greater the density, the longitudinal axis of the tobacco media portion passing through the center of the transverse axis cross-section of the tobacco media portion.
Various embodiments can provide an aerosol-generating system comprising: an aerosol-generating article comprising a tobacco media portion made from a mixture comprising tobacco powder and thermally conductive powder, the mixture comprising less than 20 wt% thermally conductive powder on a dry weight basis; and an aerosol-generating device comprising a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a control portion for controlling the supply of power from the battery to the heater; the heater is arranged to surround the outside of the tobacco media portion, the heat conductive powder being distributed closer to the longitudinal axis of the tobacco media portion with a greater density; or the heater is arranged to be inserted into the interior of the tobacco media portion, the heat conductive powder being distributed further from the longitudinal axis of the tobacco media portion, the density being greater, the longitudinal axis of the tobacco media portion passing through the center of the transverse axis cross section of the tobacco media portion.
Effects of the invention
The present invention may provide an aerosol-generating article comprising a thermally conductive material. In particular, the aerosol-generating article of the invention may comprise a tobacco media portion made from a mixture comprising tobacco powder and thermally conductive powder. As the tobacco media portion comprises a thermally conductive material, the heat transfer efficiency during heating of the aerosol-generating article may increase. Accordingly, a sufficient amount of aerosol can be provided to the user, and the time required for warm-up and the power consumption of the battery can be reduced.
However, when the tobacco media portion contains too much heat conductive material, excessive heat sensation may be transferred to the user because the temperature of the tobacco media portion rises above the desired level with a preset temperature profile during the heating of the aerosol-generating article. According to the experimental results described later with reference to fig. 6 to 8, when the mixture contains 20 wt% or more of the heat conductive powder on a dry weight basis, it was confirmed that excessive heat sensation was transferred to the user in the initial suction section. Thus, the mixture of tobacco media portions used to prepare the aerosol-generating article of the invention may comprise less than 20% by weight of thermally conductive powder on a dry weight basis. Thus, the temperature of the tobacco media portion may be controlled by a preset temperature profile to a desired level as the heat transfer efficiency increases during heating of the aerosol-generating article.
Drawings
Fig. 1 to 4 are diagrams showing examples of insertion of an aerosol-generating article into an aerosol-generating device.
Fig. 5 is a diagram illustrating an aerosol-generating article of an exemplary embodiment.
Fig. 6 to 8 are diagrams related to experiments for determining an appropriate content of the heat conductive powder.
Fig. 9 and 10 are cross-sectional views for explaining the distribution of the heat conductive powder in the tobacco medium section of the exemplary embodiment.
Detailed Description
An aerosol-generating article of an aspect of the invention may comprise: a tobacco medium part made of a mixture containing tobacco powder and heat conductive powder; the mixture comprises less than 20 wt% thermally conductive powder on a dry weight basis.
In one example, the mixture may comprise, on a dry weight basis, 30 to 80 weight percent tobacco powder and 0.1 weight percent or more and less than 20 weight percent thermally conductive powder.
In addition, the mixture further comprises at least one of an additive, a binder, and a humectant, and the tobacco media portion may be prepared in the following manner: the slurry formed by adding water to the mixture and mixing the water and the mixture is dried into a sheet shape and then molded.
For example, the mixture may comprise, on a dry weight basis: 60 to 80 wt% of tobacco powder, 5 to less than 20 wt% of heat conductive powder, 3 to 7 wt% of additive, 6 to 10 wt% of binder and 5 to 12 wt% of humectant.
The thermally conductive powder may comprise aluminum powder.
In an embodiment, the heat conductive powder may be distributed closer to the longitudinal axis of the tobacco media portion, the greater the density, when the aerosol-generating article is heated by heat transferred from the exterior of the tobacco media portion.
In another embodiment, the thermally conductive powder may be distributed further from the longitudinal axis of the tobacco media portion with greater density as the aerosol-generating article is heated by heat transferred from the interior of the tobacco media portion.
In an example, the aerosol-generating article may further comprise: an aerosol-generating portion disposed upstream of the tobacco media portion and comprising a sheet of non-tobacco material coated with a humectant; a cooling unit which is disposed downstream of the tobacco medium unit and cools the aerosol generated from at least one of the aerosol generating unit and the tobacco medium unit; and a filtering portion downstream of the cooling portion.
An aerosol-generating system of a further aspect of the invention may comprise: an aerosol-generating article comprising a tobacco media portion made from a mixture comprising tobacco powder and thermally conductive powder, the mixture comprising less than 20 wt% thermally conductive powder on a dry weight basis; and an aerosol-generating device comprising a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a control portion for controlling the power supply from the battery to the heater.
In an embodiment, the heater is arranged around the outside of the tobacco media portion, and the thermally conductive powder may be distributed closer to the longitudinal axis of the tobacco media portion with a greater density.
In another embodiment, the heater is arranged to be inserted into the interior of the tobacco media portion, and the thermally conductive powder may be distributed further from the longitudinal axis of the tobacco media portion, with a greater density.
The terms used in the embodiments are general terms that are currently widely used as far as possible in consideration of the effect of the present invention, but may be changed according to the intention of those skilled in the art, precedent, or the appearance of new technology in the art. In addition, the applicant may arbitrarily select some terms in a specific case, and in this case, the meanings of the selected terms will be described in detail in the description section of the present specification. The terms used in the present invention should be defined based on the meanings of the terms and the contents of the entire specification, not the simple term names.
Throughout the specification, when a portion "comprises" a constituent element, unless a characteristic description contrary thereto is given, it means that the portion may also include other constituent elements, not exclude other constituent elements. The terms "part," "module," and the like in the specification refer to a unit that performs at least one action or action, and may be implemented as hardware or software, or as a combination of hardware and software.
Throughout the specification, "upstream" and "downstream" may be determined based on the direction of air flow when a user uses the aerosol-generating article to smoke. For example, when a user smokes using the aerosol-generating article shown in fig. 5, the aerosol generated from the aerosol-generating portion 210 or the tobacco medium portion 220 moves to the filter portion 240 along air flowing from the outside and then is transmitted to the user through the filter portion 240, and thus the aerosol-generating portion 210 or the tobacco medium portion 220 is located "upstream" of the filter portion 240. On the other hand, as will be readily understood by those of ordinary skill in the art, the terms "upstream" and "downstream" may be relative, depending on the relationship of the constituent elements.
In addition, throughout the specification, "longitudinal" may refer to a direction from an upstream end to a downstream end of an aerosol-generating article, or vice versa. For example, assuming that the aerosol-generating article comprises, in the listed order, the aerosol-generating portion 210, the tobacco medium portion 220, the cooling portion 230, and the filtering portion 240, the longitudinal direction may be the direction from the aerosol-generating portion 210 to the filtering portion 240, or the opposite direction.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains can easily implement the present invention. The invention may, however, be embodied in many different forms and should not be construed as being limited to the embodiments set forth herein.
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.
Fig. 1 to 4 are diagrams showing examples of insertion of an aerosol-generating article into an aerosol-generating device.
Referring to fig. 1, the aerosol-generating device 10000 includes a battery 11000, a control portion 12000, and a heater 13000. Referring to fig. 2 and 3, the aerosol-generating device 10000 further comprises a vaporiser 14000. Referring to fig. 4, the aerosol-generating device 10000 further comprises an induction coil 13500. In addition, the aerosol-generating article 20000 may be inserted into the interior space of the aerosol-generating device 10000. The aerosol-generating device 10000 and the aerosol-generating article 20000 may constitute an aerosol-generating system.
Only the components related to the present embodiment are shown in the aerosol-generating device 10000 shown in fig. 1 to 4. Accordingly, it will be understood by those of ordinary skill in the art to which the present embodiment relates that the aerosol-generating device 10000 may further include other general-purpose components in addition to those illustrated in fig. 1 to 4.
In addition, the aerosol-generating device 10000 is shown in fig. 2 and 3 as including the heater 13000, but the heater 13000 may be omitted as required.
Fig. 1 shows that the battery 11000, the control unit 12000, and the heater 13000 are arranged in a row. In fig. 2, the battery 11000, the control unit 12000, the carburetor 14000, and the heater 13000 are shown arranged in a row. Fig. 3 shows that the carburetor 14000 and the heater 13000 are arranged in parallel. Fig. 4 shows that the induction coil 13500 is arranged so as to wind around the heater 13000. However, the internal structure of the aerosol-generating device 10000 is not limited to the structure shown in fig. 1 to 4. In other words, depending on the design of the aerosol-generating device 10000, the arrangement of the battery 11000, the control unit 12000, the heater 13000, the induction coil 13500, and the carburetor 14000 can be changed.
When the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000, the aerosol-generating device 10000 causes the heater 13000 and/or the vaporizer 14000 to operate, whereby an aerosol can be generated from the aerosol-generating article 20000 and/or the vaporizer 14000. The aerosol generated by the heater 13000 and/or the vaporizer 14000 is delivered to the user via the aerosol-generating article 20000.
If necessary, even when the aerosol-generating article 20000 is not inserted into the aerosol-generating device 10000, the aerosol-generating device 10000 can heat the heater 13000.
The battery 11000 supplies electric power required for the operation of the aerosol-generating device 10000. For example, the battery 11000 may supply power so that the heater 13000 or the carburetor 14000 can be heated, and power necessary for operation may be supplied to the control unit 12000. In addition, the battery 11000 can supply power necessary for operation of a display, a sensor, a motor, and the like provided in the aerosol-generating device 10000.
The control unit 12000 controls the operation of the aerosol-generating device 10000 as a whole. Specifically, the control section 12000 controls not only the battery 11000, the heater 13000, the induction coil 13500, and the carburetor 14000, but also the operation of other structures in the aerosol-generating device 10000. The control unit 12000 can also check the state of each structure of the aerosol-generating device 10000 to determine whether the aerosol-generating device 10000 is in an operable state.
The control section 12000 includes at least one processor. The processor may be configured by an array of a plurality of logic gates, or may be implemented by a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. It should be understood by those skilled in the art that the control unit 12000 may be implemented by other hardware.
The heater 13000 can be heated by electric power supplied from the battery 11000. But is not limited thereto. The heater 13000 can be heated by a variable magnetic field generated from the induction coil 13500. In this case, the induction coil 13500 can generate a variable magnetic field using the power supplied from the battery 11000.
In an example, as shown in fig. 1, the heater 13000 may be located inside the aerosol-generating article 20000 when the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000. The heated heater 13000 may thus be in direct contact with the aerosol-generating substance in the aerosol-generating article 20000 and cause the temperature of the aerosol-generating substance to rise.
In another example, as shown in fig. 2 to 4, the heater 13000 may be located outside the aerosol-generating article 20000 when the aerosol-generating article 20000 is inserted into the aerosol-generating device 10000. Accordingly, heat generated from the heater 13000 can be transferred from the outside of the aerosol-generating article 20000 to the aerosol-generating substance inside thereof.
In an example, as shown in fig. 1-3, the heater 13000 can be a resistive heater. For example, the heater 13000 may comprise a conductive track (track) where the heater 13000 may be heated as current flows. However, the heater 13000 is not limited to the above example, as long as it can be heated to a desired temperature, and is not particularly limited. Here, the desired temperature may be preset at the aerosol-generating device 10000, or may be set by a user.
As another example, as shown in fig. 4, the heater 13000 may be an induction heating type heater. The aerosol-generating device 10000 may further comprise an induction coil 13500 for heating the aerosol-generating article 20000 by means of induction heating. The induction coil 13500 is capable of generating a variable magnetic field when the battery 11000 is supplied with power, and the heater 13000 may include a heat sensing body that is heated as the variable magnetic field passes. The heat sensing body may comprise metal or carbon. For example, the heat sensing body may include at least one of ferrite (ferrite), ferromagnetic alloy (ferromagnetic alloy), stainless steel (stainless steel), and Aluminum (Aluminum).
In addition, the heat sensing body may include at least one of graphite (graphite), molybdenum (molybdenum), silicon carbide (silicon carbide), niobium (niobium), nickel alloy (nickel alloy), metal film (metal film), ceramics such as zirconia (zirconia), transition metals such as nickel (Ni) or cobalt (Co), and metalloids such as boron (B) or phosphorus (P). However, the heat sensitive body included in the heater 13000 is not limited to the example, and may be used without limitation as long as it can be heated to a desired temperature by applying a variable magnetic field.
The heater 13000 may comprise a tubular heating element, a plate-shaped heating element, a needle-shaped heating element, or a rod-shaped heating element, and may heat the inside or outside of the aerosol-generating article 20000 according to the heating element shape.
In addition, a plurality of heaters 13000 may be provided to the aerosol-generating device 10000. At this time, the plurality of heaters 13000 are disposed so as to be inserted into the aerosol-generating article 20000, and may be disposed outside the aerosol-generating article 20000. Further, some of the plurality of heaters 13000 may be inserted into the aerosol-generating article 20000, and other heaters may be disposed outside the aerosol-generating article 20000. The shape of the heater 13000 is not limited to the shapes shown in fig. 1 to 4, and may be formed in various other shapes.
The vaporizer 14000 is capable of generating an aerosol by heating the liquid composition, the generated aerosol being capable of being delivered to a user via the aerosol-generating article 20000. In other words, the aerosol generated by the vaporizer 14000 may be movable along the airflow path of the aerosol-generating device 10000, which may be configured to enable the aerosol generated by the vaporizer 14000 to be delivered to a user via an aerosol-generating article.
For example, the vaporizer 14000 may include a liquid storage portion, a liquid transfer unit, and a heating member, but is not limited thereto. For example, the liquid storage portion, the liquid transfer unit and the heating member may be provided as separate modules in the aerosol-generating device 10000.
The liquid storage part is capable of storing the liquid composition. For example, the liquid composition may be a liquid comprising tobacco-containing materials that contain volatile tobacco flavor components, and may also be a liquid comprising non-tobacco materials. The liquid storage portion may be detachable from the carburetor 14000 or attachable to the carburetor 14000, or may be formed integrally with the carburetor 14000.
For example, the liquid composition may include water, solvents, ethanol, plant extracts, flavors, fragrances, or vitamin mixtures. The flavor may include menthol, peppermint, spearmint oil, various fruit flavor components, and the like, but is not limited thereto. The flavoring agent may include an ingredient capable of providing a variety of aromas or flavors to the user. The vitamin mixture may be a substance mixed with at least one of vitamin a, vitamin B, vitamin C, and vitamin E, but is not limited thereto. In addition, the liquid composition may include aerosol formers such as glycerin and propylene glycol.
The liquid transfer unit is capable of transferring the liquid composition of the liquid storage portion to the heating member. For example, the liquid transfer unit may be, but not limited to, a wick (wick) such as cotton fiber, ceramic fiber, glass fiber, porous ceramic.
The heating means is a means for heating the liquid composition transferred through the liquid transfer unit. For example, the heating member may be a metal hot wire, a metal hot plate, a ceramic heater, or the like, but is not limited thereto. In addition, the heating member may be constituted by a conductive heating wire such as a nichrome wire, and may be provided in a structure wound around the liquid transfer unit. The heating member may be heated by a supply of electric current and transfer heat to the liquid composition in contact with the heating member to heat the liquid composition. As a result, an aerosol can be generated.
For example, vaporizer 14000 may be referred to as a cartridge (cartridge), a nebulizer (atomizer), or a nebulizer (atomizer), but is not limited thereto.
On the other hand, the aerosol-generating device 10000 may further include other general structures than the battery 11000, the control unit 12000, the heater 13000, the induction coil 13500, and the carburetor 14000. For example, the aerosol-generating device 10000 may comprise a display that may output visual information and/or a motor for outputting tactile information. In addition, the aerosol-generating device 10000 may comprise at least one sensor (puff sensor, temperature sensor, cigarette sensor, etc.). The aerosol-generating device 10000 can be configured to allow external air to flow in or internal air to flow out even when the aerosol-generating article 20000 is inserted.
Although not shown in fig. 1 to 4, the aerosol-generating device 10000 may also be configured as a system together with a separate bracket. For example, the cradle may be used to charge the battery 11000 of the aerosol-generating device 10000. Alternatively, the heater 13000 may be heated in a state where the bracket is engaged with the aerosol-generating device 10000.
The aerosol-generating article 20000 may be similar to a conventional combustion type cigarette. For example, the aerosol-generating article 20000 may be divided into a first portion 21000 containing an aerosol-generating substance and a second portion 22000 comprising a filter or the like. Alternatively, the second portion of the aerosol-generating article 20000 may further comprise an aerosol-generating substance. For example, an aerosol-generating substance made in the shape of particles or capsules may be inserted into the second portion.
The entire first portion may be inserted into the interior of the aerosol-generating device 10000 and the second portion may be exposed to the outside. Alternatively, only a part of the first part may be inserted into the interior of the aerosol-generating device 10000, or a part of the entire first part and second part may be inserted into the interior of the aerosol-generating device 10000. The user can inhale the aerosol with the mouth gripping the second portion. At this time, the external air passes through the first portion, thereby generating an aerosol, and the generated aerosol is transferred to the user's mouth via the second portion.
As an example, external air may flow in through at least one air passage formed at the aerosol-generating device 10000. For example, the opening and closing of the air passage formed in the aerosol-generating device 10000 and/or the size of the air passage may be adjusted by a user. Thus, the user can adjust the amount of atomization, smoking feeling, and the like. As another example, the external air may flow into the interior of the aerosol-generating article 20000 through at least one hole (hole) formed in the surface of the aerosol-generating article 20000.
Fig. 5 is a diagram illustrating an aerosol-generating article of an exemplary embodiment.
Referring to fig. 5, the aerosol-generating article 20000 may comprise an aerosol-generating portion 210, a tobacco medium portion 220, a cooling portion 230, a filtering portion 240, and a wrapper 250. The first portion as described above may include the aerosol-generating portion 210 and the tobacco media portion 220, and the second portion may include the cooling portion 230 and the filtering portion 240.
The aerosol-generating portion 210 is disposed upstream of the tobacco media portion 220 and may comprise a sheet of non-tobacco material coated with a humectant. The humectant may correspond to an aerosol generating substance. For example, the humectant may comprise at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited thereto. The non-tobacco material is not a tobacco material, and may be a polymer material or a cellulose material capable of absorbing a humectant. For example, the non-tobacco material sheet may be paper that does not develop an odor due to heating even when heated to a high temperature. However, the non-tobacco material sheet is not limited thereto.
On the other hand, the aerosol-generating portion 210 may include a sheet that is curled or compressed and folded, or may include a sheet that is not curled and rolled. However, the aerosol-generating portion 210 is not limited thereto, and the aerosol-generating portion 210 may comprise a sheet of non-tobacco material having any suitable shape. The aerosol-generating portion 210 may contain other additive materials such as flavors, humectants, and the like. For example, a flavoring liquid such as menthol or a humectant may be added to the aerosol-generating portion 210 by spraying.
The tobacco media portion 220 may be made of a mixture containing tobacco powder and thermally conductive powder. The mixture may further comprise at least one of additives, binders, and humectants, and the tobacco media portion 220 may be prepared as follows: the slurry produced by adding water to the mixture and mixing is dried into a sheet shape and then molded. For example, the mixture may include tobacco powder in solid powder form, thermally conductive metal powder (e.g., aluminum), non-tobacco fiber additive (e.g., pulp), and exogenous binder (e.g., guar gum), and may also include humectant (e.g., glycerin).
The tobacco media portion 220 may have various shapes. For example, the tobacco media portion 220 may be made from a sheet (sheet) itself. In this case, the tobacco medium portion 220 may be made of a sheet material that is curled or compressed and folded, or may be rolled up without being curled. The tobacco media portion 220 may be made of filaments (strands) obtained by cutting a sheet material, or may be made of cut tobacco cut from a sheet material.
On the other hand, since the tobacco medium portion 220 contains a heat conductive material (e.g., a heat conductive powder), the heat transfer efficiency in heating the aerosol-generating article 20000 can be improved. Therefore, a large amount of aerosol can be provided to the user, and the time required for warm-up and the power consumption of the battery can be reduced.
However, when the tobacco medium portion 220 contains an excessive amount of the heat conductive material, since the temperature of the tobacco medium portion 220 rises above the intended level with a preset temperature profile during the heating of the aerosol-generating article 20000, an excessive thermal sensation may be transferred to the user. Therefore, the tobacco media portion 220 needs to contain no excess thermally conductive material. Hereinafter, an appropriate content of the heat conductive powder will be described with reference to fig. 6 to 8.
Fig. 6 to 8 are diagrams related to experiments for determining an appropriate content of the heat conductive powder.
Referring to the table of fig. 6, the mixing ratios of the mixtures corresponding to the respective aerosol-generating articles used in the experiments are recorded. In this experiment, aluminum (Al) powder was used as the heat conductive powder, pulp was used as the additive, guar gum was used as the binder, and glycerin was used as the humectant.
The aerosol-generating article C comprises a tobacco material portion made of a mixture consisting of, on a dry weight basis, 80% by weight of tobacco raw material, 5% by weight of pulp, 8% by weight of guar gum and 7% by weight of glycerin. The aerosol-generating article C was a control group containing no thermally conductive powder.
The aerosol-generating article A5 comprises a portion of tobacco material made from a mixture consisting of, on a dry weight basis, 75% by weight of tobacco raw material, 5% by weight of aluminium powder, 5% by weight of pulp, 8% by weight of guar gum and 7% by weight of glycerol.
The aerosol-generating article a10 comprises a tobacco material portion made of a mixture consisting of, on a dry weight basis, 70% by weight of tobacco raw material, 10% by weight of aluminium powder, 5% by weight of pulp, 8% by weight of guar gum and 7% by weight of glycerol.
The aerosol-generating article a15 comprises a tobacco material portion made of a mixture consisting of, on a dry weight basis, 65% by weight of tobacco raw material, 15% by weight of aluminium powder, 5% by weight of pulp, 8% by weight of guar gum and 7% by weight of glycerol.
The aerosol-generating article a20 comprises a tobacco material portion made of a mixture consisting of, on a dry weight basis, 60% by weight of tobacco raw material, 20% by weight of aluminium powder, 5% by weight of pulp, 8% by weight of guar gum and 7% by weight of glycerol.
The aerosol-generating article C, the aerosol-generating article A5, the aerosol-generating article a10, the aerosol-generating article a15, and the aerosol-generating article a20 each include a tobacco medium portion made of a slurry produced by mixing with water, the weight of the water being 500 when the weight of the mixture is 100.
Referring to the table of fig. 7, the results of component analysis of aerosols generated from the respective aerosol-generating articles when the aerosol-generating articles were heated are shown.
Referring to fig. 7, it can be seen that as the content of aluminum powder contained in the aerosol-generating article increases, the transfer amount of smoke components such as total particulate matter (TPM, total Particulate Matter), nicotine, glycerin, and the like increases. In other words, it is known that as the content of aluminum powder contained in the aerosol-generating article increases, a richer amount of aerosol can be provided to the user, and the time required for warm-up and the power consumption of the battery can be reduced. However, as described later with reference to fig. 8, a larger amount of aluminum powder is not necessarily preferable.
Referring to the graph of fig. 8, in the case where the heater heats according to a preset temperature profile, the temperature measurement results of the tobacco medium portion included in each of the above-described aerosol-generating articles are shown.
According to a preset temperature profile, the heater for heating the aerosol-generating article is capable of heating to 270 ℃ in the interval of 0 to 40 seconds, 240 ℃ in the interval of 40 to 60 seconds, 235 ℃ in the interval of 60 to 80 seconds, and 230 ℃ in the interval of 80 to 280 seconds. The preset temperature profile may be set such that the target temperature of the end portion of the tobacco medium portion that is not in contact with the heater is 170 ℃ or higher.
Referring to fig. 8, it can be seen that the temperatures of the aerosol-generating article C, the aerosol-generating article A5, the aerosol-generating article a10 and the aerosol-generating article a15 are controlled to desired levels by preset temperature profiles. In contrast, it is seen that the temperature of the aerosol-generating article a20 rises sharply in the initial suction zone.
Therefore, in the case where the tobacco medium portion contains an excessive amount (i.e., 20 wt% or more) of the heat conductive material, it is known that, during heating of the aerosol-generating article, as the temperature of the tobacco medium portion rises above the intended level with a preset temperature profile, an excessive thermal sensation may be transmitted to the user. Thus, it is preferred that the mixture used to prepare the tobacco media portion comprises less than 20 weight percent thermally conductive material.
Referring back to fig. 5, the mixture of tobacco media portions 220 used to prepare the aerosol-generating article 20000 of the present invention may comprise less than 20 wt% thermally conductive powder on a dry weight basis. Thus, the heat transfer efficiency during heating of the aerosol-generating article 20000 is improved, while the temperature of the tobacco medium portion 220 can be controlled at a desired level by a preset temperature profile.
For example, the mixture may comprise, on a dry weight basis, 30 to 80 weight percent tobacco powder and 0.1 weight percent or more and less than 20 weight percent thermally conductive powder. More specifically, the mixture may comprise, on a dry weight basis, 60 to 80% by weight of the tobacco powder, 5 to less than 20% by weight of the thermally conductive powder, 3 to 7% by weight of the additive, 6 to 10% by weight of the binder, and 5 to 12% by weight of the humectant. But is not limited thereto, and the content of other materials may be appropriately changed as long as the content of the heat conductive powder is less than 20 wt%.
On the other hand, the characteristics of the aerosol generated from the tobacco medium portion 220 may differ not only depending on the content of the heat conductive powder contained in the tobacco medium portion 220 but also depending on the distribution of the heat conductive powder. Hereinafter, a preferred distribution of the heat conductive powder will be described with reference to fig. 9 and 10.
Fig. 9 and 10 are cross-sectional views for explaining the distribution of the heat conductive powder in the tobacco medium section of the exemplary embodiment.
Referring to fig. 9, an example of a preferred distribution of the thermally conductive powder 910 is shown when the aerosol-generating article is heated by heat transferred from the exterior of the tobacco media portion 220.
The heating of the aerosol-generating article by heat transferred from the exterior of the tobacco medium portion 220 may refer to the heater being arranged around the exterior of the tobacco medium portion 220 as shown in fig. 2 to 4. In general, where the heater is disposed about the exterior of the tobacco media portion 220, the temperature of the central region 920 of the tobacco media portion 220 may be lower than the temperature of other regions within the tobacco media portion 220 (i.e., other regions that are not the central region 920). Thus, aerosol-generating substances contained in other regions than the central region 920 may be depleted more quickly.
According to an exemplary embodiment, the thermally conductive powder 910 may be distributed closer to the longitudinal axis of the tobacco media portion 220 (i.e., the center of the tobacco media portion 220 shown in the cross-sectional view of fig. 9), the greater the density. Therefore, even if the aerosol-generating device used with the aerosol-generating article includes an external heating type heater, the entire tobacco medium portion 220 can be heated uniformly. In one example, the amount of thermally conductive powder contained in the central region 920 of the tobacco media portion 220 may be more than twice the amount of powder contained in other regions of the tobacco media portion 220. However, it is not limited thereto. On the other hand, the central region 920 may be a region corresponding to half the diameter of the tobacco medium portion 220, but is not limited thereto.
Referring to fig. 10, an example of a preferred distribution of thermally conductive powder 1010 is shown when the aerosol-generating article is heated by heat transferred from the interior of the tobacco media portion 220.
Heating of the aerosol-generating article by heat transferred from the interior of the tobacco media portion 220 may refer to the heater being arranged to be inserted into the interior of the tobacco media portion 220 as shown in fig. 1. In general, where a heater is inserted inside the tobacco media portion 220, the temperature of the central region 1020 of the tobacco media portion 220 may be higher than the temperature of other regions within the tobacco media portion 220. Thus, the aerosol-generating substance contained in the central region 1020 may be depleted faster than in the other regions.
According to an exemplary embodiment, the thermally conductive powder 1010 may be distributed further from the longitudinal axis of the tobacco media portion 220 (i.e., the center of the tobacco media portion 220 shown in the cross-sectional view of fig. 10), the greater the density. Therefore, even if the aerosol-generating device used with the aerosol-generating article includes the internal heating type heater, the entire tobacco medium portion 220 can be heated uniformly. For example, the amount of the heat conductive powder 1010 included in the other region of the tobacco medium portion 220 (i.e., the region other than the central region 1020) may be more than twice the amount of the heat conductive powder 1010 included in the central region 1020 of the tobacco medium portion 220. However, it is not limited thereto. On the other hand, the central region 1020 may be a region corresponding to half the diameter of the tobacco medium portion 220, but is not limited thereto.
Referring back to fig. 5, the distribution of the heat conductive powder contained in the tobacco medium portion 220 is not limited to the examples of fig. 9 and 10. The thermally conductive powder may be uniformly distributed throughout the entire area of the tobacco media portion 220.
The cooling portion 230 may be disposed downstream of the tobacco media portion 220 and cool the aerosol generated from at least one of the aerosol-generating portion 210 and the tobacco media portion 220. The cooling part 230 may be a tube filter or a branch filter including a hollow part. However, the cooling unit 230 is not limited to the example described above, and may be used without limitation as long as the function of cooling the aerosol can be exerted. For example, the cooling part 230 may be made of a high polymer material or a biodegradable high polymer material. The cooling part 230 may be made of only pure polylactic acid, but is not limited thereto. In addition, the cooling part 230 may be made of a cellulose acetate filter formed with a plurality of holes.
The filtering part 240 may be a cellulose acetate filter located downstream of the cooling part 230. On the other hand, the shape of the filter portion 240 is not limited thereto. For example, the filter part 240 may be a cylindrical rod, or may be a tubular rod including a hollow part inside. In addition, the filter 240 may be an embedded rod. In the case where the filtering part 240 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in different shapes.
The filter portion 240 may be manufactured to produce a flavor. As one example, the perfuming liquid may be sprayed on the filtering part 240, and individual fibers coated with the perfuming liquid may be inserted into the inside of the filtering part 240.
In addition, the filtering part 240 may include at least one capsule. Wherein the capsule is capable of performing a flavor generating function and also capable of performing an aerosol generating function. For example, the capsule may have a structure that is encapsulated with a liquid containing a fragrance. The capsule may be spherical or cylindrical, but is not limited thereto.
The aerosol-generating article 20000 may be packaged with a wrapper 250. At least one hole (hole) for inflow of external air or outflow of internal air may be formed on the wrapper 250. In fig. 5, the wrapper 250 is shown as a single wrapper, but the wrapper 250 may be a combination of multiple wrappers. Wrapper 250 may comprise a thermally conductive wrapper. For example, the wrapper 250 may comprise an oil resistant wrapper comprising a metal layer (e.g., aluminum, copper, etc.). However, the wrapper 250 is not limited thereto.
On the other hand, although in fig. 5 the aerosol-generating article 20000 is shown to be composed of 4 segments, it is not limited thereto. In other words, the aerosol-generating article 20000 may be composed of a greater number of segments or a fewer number of segments, and may comprise at least one segment other than the cooling portion 230 and the filtering portion 240 performing other functions.
The above description of embodiments is illustrative only, and it will be understood by those skilled in the art that various modifications and other equivalents may be made thereto. The true scope of the invention should therefore be determined by the appended claims, and all differences within the scope equivalent to what is described in the claims should be construed as being included in the scope defined by the claims.
Claims (7)
1. An aerosol-generating article, comprising:
a tobacco medium part made of a mixture containing tobacco powder and heat conductive powder;
the mixture comprising less than 20 wt% of thermally conductive powder on a dry weight basis,
when the aerosol-generating article is heated by heat transferred from the exterior of the tobacco media portion, the thermally conductive powder is distributed closer to the longitudinal axis of the tobacco media portion, with greater density; or alternatively
When the aerosol-generating article is heated by heat transferred from the interior of the tobacco media portion, the thermally conductive powder is distributed further from the longitudinal axis of the tobacco media portion, the greater the density,
the longitudinal axis of the tobacco media portion passes through the center of the transverse axis cross section of the tobacco media portion.
2. An aerosol-generating article according to claim 1, wherein,
the mixture comprises, on a dry weight basis, 30 to 80% by weight of tobacco powder and 0.1% by weight or more and less than 20% by weight of thermally conductive powder.
3. An aerosol-generating article according to claim 1, wherein,
the mixture further comprises at least one of a non-tobacco fiber additive, a binder, and a humectant,
the tobacco media part is prepared in the following way: the slurry formed by adding water to the mixture and mixing the water and the mixture is dried into a sheet shape and then molded.
4. An aerosol-generating article according to claim 3, wherein,
the mixture comprises, on a dry weight basis: 60 to 80 weight percent of tobacco powder, 5 to less than 20 weight percent of heat conducting powder, 3 to 7 weight percent of non-tobacco fiber additive, 6 to 10 weight percent of binder and 5 to 12 weight percent of humectant.
5. An aerosol-generating article according to claim 1, wherein,
the thermally conductive powder comprises aluminum powder.
6. An aerosol-generating article according to claim 1, further comprising:
an aerosol-generating portion disposed upstream of the tobacco media portion and comprising a sheet of non-tobacco material coated with a humectant;
a cooling unit which is disposed downstream of the tobacco medium unit and cools the aerosol generated from at least one of the aerosol generating unit and the tobacco medium unit; and
and a filtering part positioned downstream of the cooling part.
7. An aerosol-generating system, comprising:
an aerosol-generating article comprising a tobacco media portion made from a mixture comprising tobacco powder and thermally conductive powder, the mixture comprising less than 20 wt% thermally conductive powder on a dry weight basis; and
an aerosol-generating device comprising a heater for heating the aerosol-generating article, a battery to supply power to the heater, and a control portion to control the supply of power from the battery to the heater;
the heater is arranged to surround the outside of the tobacco media portion, the heat conductive powder being distributed closer to the longitudinal axis of the tobacco media portion with a greater density; or alternatively
The heater is arranged to be inserted into the interior of the tobacco media portion, the thermally conductive powder being distributed further from the longitudinal axis of the tobacco media portion, the greater the density,
the longitudinal axis of the tobacco media portion passes through the center of the transverse axis cross section of the tobacco media portion.
Applications Claiming Priority (3)
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|---|---|---|---|
| KR10-2020-0097536 | 2020-08-04 | ||
| KR1020200097536A KR102560715B1 (en) | 2020-08-04 | 2020-08-04 | Aerosol generating article containing thermally conductive materials |
| PCT/KR2021/009161 WO2022030799A1 (en) | 2020-08-04 | 2021-07-16 | Aerosol-generating article comprising thermally conductive material |
Publications (2)
| Publication Number | Publication Date |
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| CN114302654A CN114302654A (en) | 2022-04-08 |
| CN114302654B true CN114302654B (en) | 2024-03-15 |
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| CN202180004669.6A Active CN114302654B (en) | 2020-08-04 | 2021-07-16 | Aerosol generating article and aerosol generating system |
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| US (1) | US20230292812A1 (en) |
| EP (1) | EP3973793A4 (en) |
| JP (1) | JP7359513B2 (en) |
| KR (1) | KR102560715B1 (en) |
| CN (1) | CN114302654B (en) |
| WO (1) | WO2022030799A1 (en) |
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| WO2024038094A1 (en) * | 2022-08-16 | 2024-02-22 | Jt International Sa | Genuine consumable smoking article |
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Also Published As
| Publication number | Publication date |
|---|---|
| EP3973793A4 (en) | 2022-07-27 |
| JP7359513B2 (en) | 2023-10-11 |
| JP2022546790A (en) | 2022-11-09 |
| EP3973793A1 (en) | 2022-03-30 |
| KR20220017259A (en) | 2022-02-11 |
| WO2022030799A1 (en) | 2022-02-10 |
| KR102560715B1 (en) | 2023-07-27 |
| CN114302654A (en) | 2022-04-08 |
| US20230292812A1 (en) | 2023-09-21 |
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