US20230292812A1 - Aerosol-generating article including thermally conductive material - Google Patents
Aerosol-generating article including thermally conductive material Download PDFInfo
- Publication number
- US20230292812A1 US20230292812A1 US17/595,168 US202117595168A US2023292812A1 US 20230292812 A1 US20230292812 A1 US 20230292812A1 US 202117595168 A US202117595168 A US 202117595168A US 2023292812 A1 US2023292812 A1 US 2023292812A1
- Authority
- US
- United States
- Prior art keywords
- aerosol
- tobacco
- generating article
- thermally conductive
- section
- 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.)
- Pending
Links
- 239000004020 conductor Substances 0.000 title description 11
- 241000208125 Nicotiana Species 0.000 claims abstract description 130
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims abstract description 130
- 239000000843 powder Substances 0.000 claims abstract description 72
- 239000000203 mixture Substances 0.000 claims abstract description 53
- 239000000443 aerosol Substances 0.000 claims description 105
- 238000010438 heat treatment Methods 0.000 claims description 32
- 239000000463 material Substances 0.000 claims description 30
- 238000001816 cooling Methods 0.000 claims description 16
- 239000004909 Moisturizer Substances 0.000 claims description 14
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 14
- 230000001333 moisturizer Effects 0.000 claims description 14
- 239000000654 additive Substances 0.000 claims description 9
- 239000011230 binding agent Substances 0.000 claims description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 8
- 238000011144 upstream manufacturing Methods 0.000 claims description 7
- 230000000996 additive effect Effects 0.000 claims description 6
- 239000002002 slurry Substances 0.000 claims description 4
- 239000007788 liquid Substances 0.000 description 26
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 20
- 239000006200 vaporizer Substances 0.000 description 17
- 230000006698 induction Effects 0.000 description 11
- 235000011187 glycerol Nutrition 0.000 description 10
- 229920002907 Guar gum Polymers 0.000 description 7
- 238000009826 distribution Methods 0.000 description 7
- 239000000665 guar gum Substances 0.000 description 7
- 229960002154 guar gum Drugs 0.000 description 7
- 235000010417 guar gum Nutrition 0.000 description 7
- 238000000034 method Methods 0.000 description 7
- 238000012546 transfer Methods 0.000 description 7
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 6
- 235000019504 cigarettes Nutrition 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 239000000796 flavoring agent Substances 0.000 description 6
- 230000006870 function Effects 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052782 aluminium Inorganic materials 0.000 description 5
- 239000002775 capsule Substances 0.000 description 5
- 230000005291 magnetic effect Effects 0.000 description 5
- 239000002994 raw material Substances 0.000 description 5
- 238000003860 storage Methods 0.000 description 5
- 239000000919 ceramic Substances 0.000 description 4
- 238000002474 experimental method Methods 0.000 description 4
- 235000019634 flavors Nutrition 0.000 description 4
- LYCAIKOWRPUZTN-UHFFFAOYSA-N Ethylene glycol Chemical compound OCCO LYCAIKOWRPUZTN-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 239000000835 fiber Substances 0.000 description 3
- 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
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-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
- MCMNRKCIXSYSNV-UHFFFAOYSA-N Zirconium dioxide Chemical compound O=[Zr]=O MCMNRKCIXSYSNV-UHFFFAOYSA-N 0.000 description 2
- 229920002301 cellulose acetate Polymers 0.000 description 2
- 238000005520 cutting process Methods 0.000 description 2
- 239000004615 ingredient Substances 0.000 description 2
- 229940041616 menthol Drugs 0.000 description 2
- 239000002861 polymer material Substances 0.000 description 2
- 239000000779 smoke Substances 0.000 description 2
- 230000000391 smoking effect Effects 0.000 description 2
- 235000013599 spices Nutrition 0.000 description 2
- 239000000126 substance Substances 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
- 229940088594 vitamin Drugs 0.000 description 2
- 150000003722 vitamin derivatives Chemical class 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
- FPIPGXGPPPQFEQ-UHFFFAOYSA-N 13-cis retinol Natural products OCC=C(C)C=CC=C(C)C=CC1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-UHFFFAOYSA-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
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 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
- FPIPGXGPPPQFEQ-BOOMUCAASA-N Vitamin A Natural products OC/C=C(/C)\C=C\C=C(\C)/C=C/C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-BOOMUCAASA-N 0.000 description 1
- 229930003270 Vitamin B Natural products 0.000 description 1
- 229930003268 Vitamin C Natural products 0.000 description 1
- 229930003427 Vitamin E Natural products 0.000 description 1
- FPIPGXGPPPQFEQ-OVSJKPMPSA-N all-trans-retinol Chemical compound OC\C=C(/C)\C=C\C=C(/C)\C=C\C1=C(C)CCCC1(C)C FPIPGXGPPPQFEQ-OVSJKPMPSA-N 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229920002988 biodegradable polymer Polymers 0.000 description 1
- 239000004621 biodegradable polymer Substances 0.000 description 1
- 229910052796 boron Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 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
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000002788 crimping Methods 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
- 230000000694 effects Effects 0.000 description 1
- 230000007717 exclusion Effects 0.000 description 1
- 230000005294 ferromagnetic effect Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 235000013355 food flavoring agent Nutrition 0.000 description 1
- 239000003205 fragrance 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
- 239000008187 granular material Substances 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 235000001050 hortel pimenta Nutrition 0.000 description 1
- 238000003780 insertion Methods 0.000 description 1
- 230000037431 insertion Effects 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
- 230000003020 moisturizing effect Effects 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- 239000011733 molybdenum Substances 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
- 229910052758 niobium Inorganic materials 0.000 description 1
- 239000010955 niobium Substances 0.000 description 1
- GUCVJGMIXFAOAE-UHFFFAOYSA-N niobium atom Chemical compound [Nb] GUCVJGMIXFAOAE-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
- 239000013618 particulate matter 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
- 238000012545 processing Methods 0.000 description 1
- HBMJWWWQQXIZIP-UHFFFAOYSA-N silicon carbide Chemical compound [Si+]#[C-] HBMJWWWQQXIZIP-UHFFFAOYSA-N 0.000 description 1
- 229910010271 silicon carbide Inorganic materials 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
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 235000019640 taste Nutrition 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
- 235000019155 vitamin A Nutrition 0.000 description 1
- 239000011719 vitamin A Substances 0.000 description 1
- 235000019156 vitamin B Nutrition 0.000 description 1
- 239000011720 vitamin B Substances 0.000 description 1
- 235000019154 vitamin C Nutrition 0.000 description 1
- 239000011718 vitamin C Substances 0.000 description 1
- 235000019165 vitamin E Nutrition 0.000 description 1
- 229940046009 vitamin E Drugs 0.000 description 1
- 239000011709 vitamin E Substances 0.000 description 1
- 229940045997 vitamin a Drugs 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Images
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
Definitions
- the present disclosure relates to an aerosol-generating article including a thermally conductive material.
- Various embodiments are directed to providing an aerosol-generating article including a thermally conductive material.
- the technical problems to be achieved by the present disclosure are not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.
- an aerosol-generating article including a tobacco medium section prepared from a mixture including a tobacco powder and a thermally conductive powder, and the mixture may include, based on dry weight, less than 20 wt % of the thermally conductive powder.
- an aerosol-generating article including a thermally conductive material.
- an aerosol-generating article according to the present disclosure may include a tobacco medium section prepared from a mixture including a tobacco powder and a thermally conductive powder.
- a thermally conductive material in the tobacco medium section, the heat transfer efficiency in the process in which the aerosol-generating article is heated may be increased. Accordingly, an abundant amount of aerosol may be provided to a user, and the time required for preheating and power consumption of the battery may be reduced.
- the tobacco medium section includes too much of a thermally conductive material, as the temperature of the tobacco medium section rises greater than the intended level by the preset temperature profile while the aerosol-generating article is heated, an excessive sense of heat may be transmitted to the user.
- the thermally conductive powder included in a mixture is 20 wt % or more based on dry weight, it was confirmed that excessive sense of heat is transmitted to the user in the initial puff section.
- the mixture for preparing the tobacco medium section of an aerosol-generating article according to the present disclosure may include, based on dry weight, less than 20 wt % of the thermally conductive powder. Accordingly, the temperature of the tobacco medium section may be controlled to an intended level by the preset temperature profile while the heat transfer efficiency in the process of heating the aerosol-generating article is increased.
- FIGS. 1 through 4 are diagrams showing examples in which an aerosol-generating article is inserted into an aerosol generating device.
- FIG. 5 is a diagram illustrating an aerosol-generating article according to an example embodiment.
- FIGS. 6 to 8 are diagrams related to an experiment for determining an appropriate content of the thermally conductive powder.
- FIGS. 9 and 10 are cross-sectional views for explaining the distribution of a thermally conductive powder in a tobacco medium section according to example embodiments.
- An aerosol-generating article may include a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder.
- the mixture may include, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder.
- the mixture may further include at least one of an additive, a binder and a moisturizer
- the tobacco medium section may be produced in a manner that a slurry, which is produced by adding water to the mixture and then mixing the water with the mixture, is dried in a sheet form and then shaped.
- the mixture may include, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of a moisturizer.
- the thermally conductive powder may include aluminum powder.
- the thermally conductive powder when the aerosol-generating article is heated by heat transferred from outside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section.
- the thermally conductive powder when the aerosol-generating article is heated by heat transferred from inside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section.
- the aerosol-generating article may further include an aerosol generating section located upstream of the tobacco medium section and including a sheet of non-tobacco material to which a moisturizer is applied; a cooling section located downstream of the tobacco medium section and configured to cool aerosols generated from at least one of the aerosol generating section and the tobacco medium section; and a filter section located downstream of the cooling section.
- An aerosol generating system may include an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 w % of the thermally conductive powder; and an aerosol generating device including a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a controller for controlling supply of power from the battery to the heater.
- the heater is arranged to surround outside the tobacco medium, and the thermally conductive powder may be distributed at a greater density, the closer to the longitudinal axis of the tobacco medium.
- the heater may be arranged to be inserted into the tobacco medium section, the thermally conductive powder may be distributed in a greater density, the farther from the longitudinal axis of the tobacco medium section.
- upstream and downstream may be determined based on the direction in which air flows when a user smokes using an aerosol-generating article. For example, when a user smokes using the aerosol-generating article shown in FIG. 5 , the aerosol generated by an aerosol generating section 210 or a tobacco medium section 220 moves to a filter section 240 along the air introduced from the outside, and is delivered to the user through the filter section 240 , and thus, the aerosol generating section 210 or the tobacco medium section 220 is located “upstream” of the filter section 240 .
- upstream and downstream may be relative depending on the relationship of the components.
- longitudinal direction may refer to a direction from an upstream end to a downstream end of the aerosol-generating article or vice versa.
- the longitudinal direction may be a direction from the aerosol generating section 210 toward the filter section 240 or vice versa.
- FIGS. 1 through 4 are diagrams showing examples in which an aerosol-generating article is inserted into an aerosol generating device.
- the aerosol generating device 10000 may include a battery 11000 , a controller 12000 , and a heater 13000 . Referring to FIGS. 2 and 3 , the aerosol generating device 10000 may further include a vaporizer 14000 . Referring to FIG. 4 , an aerosol generating device 10000 further includes an induction coil 13500 . Also, the aerosol-generating article 20000 may be inserted into an inner space of the aerosol generating device 10000 . The aerosol generating device 10000 and the aerosol-generating article 20000 may constitute an aerosol generating system.
- FIGS. 1 through 4 illustrate components of the aerosol generating device 10000 , which are related to the present embodiment. Therefore, it will be understood by one of ordinary skill in the art related to the present embodiment that other components may be further included in the aerosol generating device 10000 , in addition to the components illustrated in FIGS. 1 through 4 .
- FIGS. 2 and 3 illustrate that the aerosol generating device 10000 includes the heater 13000 . However, as necessary, the heater 13000 may be omitted.
- FIG. 1 illustrates that the battery 11000 , the controller 12000 , and the heater 13000 are arranged in series.
- FIG. 2 illustrates that the battery 11000 , the controller 12000 , the vaporizer 14000 , and the heater 13000 are arranged in series.
- FIG. 3 illustrates that the vaporizer 14000 and the heater 13000 are arranged in parallel.
- FIG. 4 shows that the induction coil 13500 is arranged to surround a heater 13000 .
- the internal structure of the aerosol generating device 10000 is not limited to the structures illustrated in FIGS. 1 through 4 . In other words, according to the design of the aerosol generating device 10000 , the battery 11000 , the controller 12000 , the heater 13000 , the induction coil 13500 , and the vaporizer 14000 may be differently arranged.
- the aerosol generating device 10000 may operate the heater 13000 and/or the vaporizer 14000 to generate aerosol 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 a user by passing through the aerosol-generating article 20000 .
- the aerosol generating device 10000 may heat the heater 13000 .
- the battery 11000 supplies electric power to be used for the aerosol generating device 10000 to operate.
- the battery 11000 may supply power to heat the heater 13000 or the vaporizer 14000 , and may supply power for operating the controller 12000 .
- the battery 11000 may supply power for operations of a display, a sensor, a motor, etc. mounted in the aerosol generating device 10000 .
- the controller 12000 may generally control operations of the aerosol generating device 10000 .
- the controller 12000 may control not only operations of the battery 11000 , the heater 13000 , the induction coil 13500 and the vaporizer 14000 , but also operations of other components included in the aerosol generating device 10000 .
- the controller 12000 may check a state of each of the components of the aerosol generating device 10000 to determine whether or not the aerosol generating device 10000 is able to operate.
- the controller 12000 may include at least one processor.
- a processor can be implemented as an array of a plurality of logic gates or can be implemented as a combination of a microprocessor and a memory in which a program executable in the microprocessor is stored. It will be understood by one of ordinary skill in the art that the controller 12000 can be implemented in other forms of hardware.
- the heater 13000 may be heated by the power supplied from the battery 11000 .
- the heater 13000 is not limited thereto.
- the heater 13000 may be heated by a variable magnetic field generated from the induction coil 13500 .
- the induction coil 13500 may generate the variable magnetic field with the power supplied from the battery 11000 .
- the heater 13000 when the aerosol-generating article 20000 is inserted into the aerosol generating device 10000 , the heater 13000 may be located inside the aerosol-generating article 20000 . Thus, the heated heater 13000 may be in direct contact with an aerosol generating material in the aerosol-generating article 20000 and increase a temperature of the aerosol generating material.
- the heater 13000 when the aerosol-generating article 20000 is inserted into the aerosol generating device 10000 , the heater 13000 may be located outside the aerosol-generating article 20000 . Thus, heat generated from the heater 13000 may be transferred from the outside of the aerosol-generating article 20000 to the aerosol generating material therein
- the heater 13000 may include an electro-resistive heater.
- the heater 13000 may include an electrically conductive track, and the heater 13000 may be heated when currents flow through the electrically conductive track.
- the heater 13000 is not limited to the example described above and may include all heaters which may be heated to a desired temperature.
- the desired temperature may be pre-set in the aerosol generating device 10000 or may be set by a user.
- the heater 13000 may be an induction heating type heater.
- the aerosol generating device 13000 may further include an induction coil 13500 for heating the aerosol-generating article 20000 in an induction heating manner.
- the induction coil 13500 may generate a variable magnetic field as power is supplied from the battery 11000
- the heater 13000 may include a susceptor that is heated as the variable magnetic field passes through.
- the susceptor may include metal or carbon.
- the susceptor may include at least one of ferrite, a ferromagnetic alloy, stainless steel, and aluminum.
- the susceptor may include at least one of graphite, molybdenum, silicon carbide, niobium, a nickel alloy, a metal film, a ceramic such as zirconia, a transition metal such as nickel (Ni) or cobalt (Co), and a metalloid such as boron (B) or phosphorus (P).
- the susceptor included in the heater 13000 is not limited to the above-described example, and may be used without limitation as long as it may be heated to a desired temperature by applying a variable magnetic field.
- the heater 13000 may include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and may heat the inside or the outside of the aerosol-generating article 20000 , according to the shape of the heating element.
- the aerosol generating device 10000 may include a plurality of heaters 13000 .
- the plurality of heaters 13000 may be inserted into the aerosol-generating article 20000 or may be arranged outside the aerosol-generating article 20000 .
- some of the plurality of heaters 13000 may be inserted into the aerosol-generating article 20000 and the others may be arranged outside the aerosol-generating article 20000 .
- the shape of the heater 13000 is not limited to the shapes illustrated in FIGS. 1 through 4 and may include various shapes.
- the vaporizer 14000 may generate aerosol by heating a liquid composition and the generated aerosol may pass through the aerosol-generating article 20000 to be delivered to a user.
- the aerosol generated via the vaporizer 14000 may move along an air flow passage of the aerosol generating device 10000 and the air flow passage may be configured such that the aerosol generated via the vaporizer 14000 passes through the aerosol-generating article 20000 to be delivered to the user.
- the vaporizer 14000 may include a liquid storage, a liquid delivery element, and a heating element, but it is not limited thereto.
- the liquid storage, the liquid delivery element, and the heating element may be included in the aerosol generating device 10000 as independent modules.
- the liquid storage may store a liquid composition.
- the liquid composition may be a liquid including a tobacco-containing material having a volatile tobacco flavor component, or a liquid including a non-tobacco material.
- the liquid storage may be formed to be detachable from the vaporizer 14000 or may be formed integrally with the vaporizer 14000 .
- the liquid composition may include water, a solvent, ethanol, plant extract, spices, flavorings, or a vitamin mixture.
- the spices may include menthol, peppermint, spearmint oil, and various fruit-flavored ingredients, but are not limited thereto.
- the flavorings may include ingredients capable of providing various flavors or tastes to a user.
- Vitamin mixtures may be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited thereto.
- the liquid composition may include an aerosol forming substance, such as glycerin and propylene glycol.
- the liquid delivery element may deliver the liquid composition of the liquid storage to the heating element.
- the liquid delivery element may be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.
- the heating element is an element for heating the liquid composition delivered by the liquid delivery element.
- the heating element may be a metal heating wire, a metal hot plate, a ceramic heater, or the like, but is not limited thereto.
- the heating element may include a conductive filament such as nichrome wire and may be positioned as being wound around the liquid delivery element. The heating element may be heated by a current supply and may transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, aerosol may be generated.
- the vaporizer 14000 may be referred to as a cartridge, a cartomizer, or an atomizer, but it is not limited thereto.
- the aerosol generating device 10000 may further include other components in addition to the battery 11000 , the controller 12000 , the heater 13000 , the induction coil 13500 , and the vaporizer 14000 .
- the aerosol generating device 10000 may include a display capable of outputting visual information and/or a motor for outputting haptic information.
- the aerosol generating device 10000 may include at least one sensor (a puff sensor, a temperature sensor, an aerosol-generating article insertion detecting sensor, etc.).
- the aerosol generating device 10000 may be formed as a structure that, even when the aerosol-generating article 20000 is inserted into the aerosol generating device 10000 , may introduce external air or discharge internal air.
- the aerosol generating device 10000 and an additional cradle may form together a system.
- the cradle may be used to charge the battery 11000 of the aerosol generating device 10000 .
- the heater 13000 may be heated when the cradle and the aerosol generating device 10000 are coupled to each other.
- the aerosol-generating article 20000 may be similar to a general combustive cigarette.
- the aerosol-generating article 20000 may be divided into a first portion including an aerosol generating material and a second portion including a filter, etc.
- the second portion of the aerosol generating article 20000 may also include an aerosol generating material.
- an aerosol generating material made in the form of granules or capsules may be inserted into the second portion.
- the entire first portion may be inserted into the aerosol generating device 10000 , and the second portion may be exposed to the outside.
- only a portion of the first portion may be inserted into the aerosol generating device 10000 , or the entire first portion and a portion of the second portion may be inserted into the aerosol generating device 10000 .
- the user may puff aerosol while holding the second portion by the mouth of the user. In this case, the aerosol is generated by the external air passing through the first portion, and the generated aerosol passes through the second portion and is delivered to the user's mouth.
- the external air may flow into at least one air passage formed in the aerosol generating device 10000 .
- opening and closing of the air passage and/or a size of the air passage formed in the aerosol generating device 10000 may be adjusted by the user. Accordingly, the amount of smoke and a smoking impression may be adjusted by the user.
- the external air may flow into the aerosol-generating article 20000 through at least one hole formed in a surface of the aerosol-generating article 20000 .
- FIG. 5 is a diagram illustrating an aerosol-generating article according to an example embodiment.
- an aerosol-generating article 20000 may include an aerosol generating section 210 , a tobacco medium section 220 , a cooling section 230 , a filter section 240 , and a wrapper 250 .
- the first portion described above may include the aerosol generating section 210 and the tobacco medium section 220
- the second portion may include the cooling section 230 and the filter section 240 .
- the aerosol generating section 210 is located upstream of the tobacco medium section 220 and may include a sheet of non-tobacco material to which a moisturizer is applied.
- the moisturizer may correspond to an aerosol generating material.
- the moisturizer may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol.
- the non-tobacco material is a material that is not a tobacco material, and may be a polymer material or a cellulosic material capable of absorbing a moisturizer.
- the sheet of non-tobacco material may be a paper sheet that does not generate off-flavor due to heat even when heated to a high temperature.
- the sheet of non-tobacco material is not limited thereto.
- the aerosol generating section 210 may include a wrinkled sheet as the sheet is crimped or compressed, or may include a sheet rolled without crimping.
- the aerosol generating section 210 is not limited thereto, and the aerosol generating section 210 may include a sheet of non-tobacco material having any suitable shape.
- the aerosol generating section 210 may include other additive substances such as flavoring agents, wetting agents, and the like.
- a flavoring liquid such as menthol or a moisturizer may be added by being sprayed onto the aerosol generating section 210 .
- the tobacco medium section 220 may be manufactured from a mixture including tobacco powder and thermally conductive powder.
- the mixture may further include at least one of an additive, a binder, and a moisturizer, and the tobacco medium section 220 may be manufactured in a manner that a slurry, which is produced by adding water to a mixture and mixing the water with the mixture, is dried in a sheet form and then shaped.
- the mixture may include the tobacco powder, the thermally conductive metal powder (e.g., aluminum), a non-tobacco fiber additive (e.g., pulp) and an exogenous binder (e.g., guar gum) as solids, and further include moisturizer (e.g., glycerin).
- the tobacco medium section 220 may be shaped in various ways.
- the tobacco medium section 220 may be manufactured as a sheet itself.
- the tobacco medium section 220 may be made of a wrinkled sheet as it is crimped or compressed, and may be rolled without being crimped.
- the tobacco medium section 220 may be made of a strand produced by cutting a sheet, or may be made of cut filler produced by cutting the sheet into small pieces.
- the tobacco medium section 220 includes a thermally conductive material (e.g., thermally conductive powder)
- heat transfer efficiency in the process of heating the aerosol-generating article 20000 may be increased. Accordingly, an abundant amount of aerosol may be provided to the user, and the time required for preheating and power consumption of the battery may be reduced.
- the tobacco medium section 220 includes too much of a thermally conductive material, as the temperature of the tobacco medium section 220 rises greater than the intended level by the preset temperature profile while the aerosol-generating article 20000 is heated, an excessive sense of heat may be transmitted to the user. Accordingly, the tobacco medium section 220 needs to contain a not too large amount of thermally conductive material.
- an appropriate content of the thermally conductive powder will be described with reference to FIGS. 6 to 8 .
- FIGS. 6 to 8 are diagrams related to an experiment for determining an appropriate content of the thermally conductive powder.
- a powder is used as a thermally conductive powder
- pulp is used as an additive
- guar gum is used as a binder
- glycerin is used as a moisturizing agent.
- Aerosol-generating article C includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 80 wt % of tobacco raw material, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- the aerosol-generating article C corresponds to a control group that does not include the thermally conductive powder.
- Aerosol-generating article A5 includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 75 wt % of tobacco raw material, 5 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A10 includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 70 wt % of tobacco raw material, 10 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A15 includes, based on dry weight, a tobacco material section produced from a mixture consisting of 65 wt % of tobacco raw material, 15 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A20 includes, based on dry weight, a tobacco material section produced from a mixture consisting of 60 wt % of tobacco raw material, 20 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum, and 7 wt % of glycerin.
- Each of 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 includes a tobacco medium section produced from a slurry generated by mixing with water having a weight corresponding to 500 when the weight of the mixture (i.e., the tobacco material section) is 100.
- the heater for heating the aerosol-generating article may be heated to 270° C. for a period of 0 second to 40 seconds, heated to 240° C. for a period of from 40 seconds to 60 seconds, heated to 235° C. for a period of 60 seconds to 80 seconds, and heated to 230° C. for a period from 80 seconds to 280 seconds.
- the preset temperature profile may be set such that the target temperature of the end portion of the tobacco medium section, which is not in contact with the heater, is 170° C. or more.
- the aerosol-generating article C, the aerosol-generating article A5, the aerosol-generating article A10, and the aerosol-generating article A15 are temperature controlled to an intended level by a preset temperature profile.
- the aerosol-generating article A 20 has an excessively increased temperature in the initial puff section.
- the tobacco medium section includes too much (i.e., 20 wt % or more) of the thermally conductive material, as the temperature of the tobacco medium section rises greater than the intended level by the preset temperature profile in the process of heating the aerosol-generating article, it may be seen that an excessive sense of heat may be transmitted to the user. Accordingly, it may be preferred that the mixture for making the tobacco medium section includes less than 20 wt % of the thermally conductive material.
- the mixture for making the tobacco medium section 220 of the aerosol-generating article 20000 may include, based on dry weight, less than 20 wt % of the thermally conductive powder. Accordingly, while the heat transfer efficiency in the process of heating the aerosol-generating article 20000 is increased, the temperature of the tobacco medium section 220 may be controlled to an intended level by the preset temperature profile.
- the mixture may include, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder.
- the mixture may include, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of moisturizer.
- the characteristics of the aerosol generated from the tobacco medium section 220 may vary depending on the distribution of the thermally conductive powder included in the tobacco medium section 220 as well as the content of the thermally conductive powder.
- a preferred distribution of the thermally conductive powder will be described with reference to FIGS. 9 and 10 .
- FIGS. 9 and 10 are cross-sectional views for explaining the distribution of a thermally conductive powder in a tobacco medium section according to example embodiments.
- FIG. 9 there is shown an example of a preferred distribution of a thermally conductive powder 910 when an aerosol-generating article is heated by heat transferred from outside a tobacco medium section 220 .
- the fact that the aerosol-generating article is heated by heat transmitted from outside the tobacco medium section 220 may mean that the heater is arranged to surround the outside of the tobacco medium section 220 as shown in FIGS. 2 to 4 .
- the temperature of a central region 920 of the tobacco medium section 220 may be lower than the temperature of other regions (i.e., regions other than the central region 920 ) within the tobacco medium section 220 . Accordingly, an aerosol generating material included in the other region than the central region 920 may be depleted more rapidly.
- the thermally conductive powder 910 may be distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section 220 (i.e., the center of the tobacco medium section 220 shown in the cross-sectional view of FIG. 9 ). Accordingly, even if an aerosol generating device used together with the aerosol-generating article includes an external heating type heater, the tobacco medium section 220 may be uniformly heated as a whole.
- the amount of the thermally conductive powder included in the central region 920 of the tobacco medium section 220 may be twice or more than the amount of powder contained in other regions of the tobacco medium section 220 .
- the central region 920 may be a region corresponding to half the diameter of the tobacco medium section 220 , but is not limited thereto.
- FIG. 10 an example of a preferred distribution of a thermally conductive powder 1010 is shown when the aerosol-generating article is heated by heat transferred from inside the tobacco medium section 220 .
- That the aerosol-generating article is heated by heat transferred from inside the tobacco medium 220 may mean that a heater is arranged to be inserted into the tobacco medium section 220 , as shown in FIG. 1 .
- the temperature of the central region 1020 of the tobacco medium section 220 may be greater than the temperature of other regions in the tobacco medium section 220 . Accordingly, the aerosol generating material included in the central region 1020 may be depleted more rapidly than other regions.
- the thermally conductive powder 1010 may be distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section 220 (i.e., the center of the tobacco medium section 220 shown in the cross-sectional view of FIG. 10 ). Accordingly, even if the aerosol generating device used with the aerosol-generating article includes a heater of an internal heating manner, the tobacco medium section 220 may be uniformly heated as a whole.
- the amount of the thermally conductive powder 1010 included in the other region of the tobacco medium section 220 i.e., a region other than the central region 1020
- the central region 1020 may be a region corresponding to half the diameter of the tobacco medium section 220 , but is not limited thereto.
- the distribution of the thermally conductive powder included in the tobacco medium section 220 is not necessarily limited to the examples of FIGS. 9 and 10 .
- the thermally conductive powder may be uniformly distributed over the entire region of the tobacco medium section 220 .
- the cooling section 230 may be located downstream of the tobacco medium section 220 and cool the aerosol generated from at least one of the aerosol generating section 210 and the tobacco medium section 220 .
- the cooling section 230 may be a tube filter or a paper tube filter including a hollow.
- the cooling section 230 is not limited to the above-described example, and as long as it may perform a function of cooling the aerosol, it may be applicable without limitation.
- the cooling section 230 may be made of a polymer material or a biodegradable polymer material.
- the cooling section 230 may be made of pure polylactic acid, but is not limited thereto.
- the cooling section 230 may be made of a cellulose acetate filter having a plurality of holes.
- the filter section 240 may be a cellulose acetate filter located downstream of the cooling section 230 .
- the shape of the filter section 240 is not limited.
- the filter section 240 may be a cylindrical rod, or a tube-type rod including a hollow therein.
- the filter section 240 may be a recess type rod. In a case where the filter section 240 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape.
- the filter section 240 may be manufactured to generate flavor.
- the flavoring liquid may be injected into the filter section 240 , and a separate fiber to which the flavoring liquid is applied may be inserted into the filter section 240 .
- the filter section 240 may include at least one capsule.
- the capsule may perform a function of generating a flavor, or may perform a function of generating an aerosol.
- the capsule may have a structure in which a liquid containing a fragrance is wrapped with a film.
- the capsule may have a spherical or cylindrical shape, but is not limited thereto.
- the aerosol-generating article 20000 may be wrapped by the wrapper 250 .
- At least one hole through which external air flows in or internal gas flows out may be formed in the wrapper 250 .
- the wrapper 250 is illustrated as a single wrapper in FIG. 5 , the wrapper 250 may be a combination of a plurality of wrappers.
- the wrapper 250 may include a thermally conductive wrapper.
- the wrapper 250 may include an oil-resistant wrapper including a metal layer (e.g., aluminum, copper, etc.).
- the wrapper 250 is not necessarily limited thereto.
- the aerosol-generating article 20000 is illustrated as being composed of four segments in FIG. 5 , the aerosol-generating article 20000 is not limited thereto. In other words, the aerosol-generating article 20000 may be composed of a smaller number of segments or a larger number of segments, and may include at least one segment performing a function other than the cooling section 230 and the filter section 240 .
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
According to some embodiments, there may be provided an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder. The mixture may include, based on dry weight, less than 20 wt % of the thermally conductive powder.
Description
- The present disclosure relates to an aerosol-generating article including a thermally conductive material.
- Recently, the demand for alternative methods to overcome the disadvantages of traditional cigarettes has increased. For example, there is growing demand for an aerosol generating system which generates aerosol by heating an aerosol generating material or a cigarette, rather than by combusting cigarettes.
- On the other hand, in a system for generating an aerosol by heating a cigarette, it is necessary to increase the heat transfer efficiency in the process of heating the cigarette, in order to provide a user with an abundant amount of aerosol and to provide an optimal smoking experience.
- Various embodiments are directed to providing an aerosol-generating article including a thermally conductive material. The technical problems to be achieved by the present disclosure are not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.
- Various embodiments provide an aerosol-generating article including a tobacco medium section prepared from a mixture including a tobacco powder and a thermally conductive powder, and the mixture may include, based on dry weight, less than 20 wt % of the thermally conductive powder.
- The present disclosure may provide an aerosol-generating article including a thermally conductive material. In detail, an aerosol-generating article according to the present disclosure may include a tobacco medium section prepared from a mixture including a tobacco powder and a thermally conductive powder. By including a thermally conductive material in the tobacco medium section, the heat transfer efficiency in the process in which the aerosol-generating article is heated may be increased. Accordingly, an abundant amount of aerosol may be provided to a user, and the time required for preheating and power consumption of the battery may be reduced.
- However, when the tobacco medium section includes too much of a thermally conductive material, as the temperature of the tobacco medium section rises greater than the intended level by the preset temperature profile while the aerosol-generating article is heated, an excessive sense of heat may be transmitted to the user. According to the experimental results to be described later with reference to
FIGS. 6 to 8 , when the thermally conductive powder included in a mixture is 20 wt % or more based on dry weight, it was confirmed that excessive sense of heat is transmitted to the user in the initial puff section. Accordingly, the mixture for preparing the tobacco medium section of an aerosol-generating article according to the present disclosure may include, based on dry weight, less than 20 wt % of the thermally conductive powder. Accordingly, the temperature of the tobacco medium section may be controlled to an intended level by the preset temperature profile while the heat transfer efficiency in the process of heating the aerosol-generating article is increased. -
FIGS. 1 through 4 are diagrams showing examples in which an aerosol-generating article is inserted into an aerosol generating device. -
FIG. 5 is a diagram illustrating an aerosol-generating article according to an example embodiment. -
FIGS. 6 to 8 are diagrams related to an experiment for determining an appropriate content of the thermally conductive powder. -
FIGS. 9 and 10 are cross-sectional views for explaining the distribution of a thermally conductive powder in a tobacco medium section according to example embodiments. - An aerosol-generating article according to an aspect of the present disclosure may include a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder.
- In one example, the mixture may include, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder.
- Also, the mixture may further include at least one of an additive, a binder and a moisturizer, and the tobacco medium section may be produced in a manner that a slurry, which is produced by adding water to the mixture and then mixing the water with the mixture, is dried in a sheet form and then shaped.
- For example, the mixture may include, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of a moisturizer.
- The thermally conductive powder may include aluminum powder.
- In one embodiment, when the aerosol-generating article is heated by heat transferred from outside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section.
- In another embodiment, when the aerosol-generating article is heated by heat transferred from inside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section.
- In one example, the aerosol-generating article may further include an aerosol generating section located upstream of the tobacco medium section and including a sheet of non-tobacco material to which a moisturizer is applied; a cooling section located downstream of the tobacco medium section and configured to cool aerosols generated from at least one of the aerosol generating section and the tobacco medium section; and a filter section located downstream of the cooling section.
- An aerosol generating system according to another aspect of the present disclosure may include an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 w % of the thermally conductive powder; and an aerosol generating device including a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a controller for controlling supply of power from the battery to the heater.
- In one embodiment, the heater is arranged to surround outside the tobacco medium, and the thermally conductive powder may be distributed at a greater density, the closer to the longitudinal axis of the tobacco medium.
- In another embodiment, the heater may be arranged to be inserted into the tobacco medium section, the thermally conductive powder may be distributed in a greater density, the farther from the longitudinal axis of the tobacco medium section.
- With respect to the terms used to describe the various embodiments, general terms which are currently and widely used are selected in consideration of functions of structural elements in the various embodiments of the present disclosure. However, meanings of the terms can be changed according to intention, a judicial precedence, the appearance of new technology, and the like. In addition, in certain cases, a term which is not commonly used can be selected. In such a case, the meaning of the term will be described in detail at the corresponding portion in the description of the present disclosure. Therefore, the terms used in the various embodiments of the present disclosure should be defined based on the meanings of the terms and the descriptions provided herein.
- In addition, unless explicitly described to the contrary, the word “comprise” and variations such as “comprises” or “comprising” will be understood to imply the inclusion of stated elements but not the exclusion of any other elements. In addition, the terms “-er”, “-or”, and “module” described in the specification mean units for processing at least one function and operation and can be implemented by hardware components or software components and combinations thereof.
- Throughout the specification, “upstream” and “downstream” may be determined based on the direction in which air flows when a user smokes using an aerosol-generating article. For example, when a user smokes using the aerosol-generating article shown in
FIG. 5 , the aerosol generated by an aerosol generatingsection 210 or atobacco medium section 220 moves to afilter section 240 along the air introduced from the outside, and is delivered to the user through thefilter section 240, and thus, theaerosol generating section 210 or thetobacco medium section 220 is located “upstream” of thefilter section 240. On the other hand, those skilled in the art will easily understand that “upstream” and “downstream” may be relative depending on the relationship of the components. - Also, throughout the specification, “longitudinal direction” may refer to a direction from an upstream end to a downstream end of the aerosol-generating article or vice versa. For example, assuming that the aerosol-generating article includes the
aerosol generating section 210, thetobacco medium section 220, acooling section 230 and thefilter section 240 in the listed order, the longitudinal direction may be a direction from theaerosol generating section 210 toward thefilter section 240 or vice versa. - Hereinafter, the present disclosure will now be described more fully with reference to the accompanying drawings, in which exemplary embodiments of the present disclosure are shown such that one of ordinary skill in the art may easily work the present disclosure. The disclosure 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 disclosure will be described in detail with reference to the drawings.
-
FIGS. 1 through 4 are diagrams showing examples in which an aerosol-generating article is inserted into an aerosol generating device. - Referring to
FIG. 1 , theaerosol generating device 10000 may include abattery 11000, acontroller 12000, and aheater 13000. Referring toFIGS. 2 and 3 , theaerosol generating device 10000 may further include avaporizer 14000. Referring toFIG. 4 , anaerosol generating device 10000 further includes aninduction coil 13500. Also, the aerosol-generatingarticle 20000 may be inserted into an inner space of the aerosol generatingdevice 10000. The aerosol generatingdevice 10000 and the aerosol-generatingarticle 20000 may constitute an aerosol generating system. -
FIGS. 1 through 4 illustrate components of theaerosol generating device 10000, which are related to the present embodiment. Therefore, it will be understood by one of ordinary skill in the art related to the present embodiment that other components may be further included in theaerosol generating device 10000, in addition to the components illustrated inFIGS. 1 through 4 . - Also,
FIGS. 2 and 3 illustrate that theaerosol generating device 10000 includes theheater 13000. However, as necessary, theheater 13000 may be omitted. -
FIG. 1 illustrates that thebattery 11000, thecontroller 12000, and theheater 13000 are arranged in series.FIG. 2 illustrates that thebattery 11000, thecontroller 12000, thevaporizer 14000, and theheater 13000 are arranged in series. Also,FIG. 3 illustrates that thevaporizer 14000 and theheater 13000 are arranged in parallel. In addition,FIG. 4 shows that theinduction coil 13500 is arranged to surround aheater 13000. However, the internal structure of theaerosol generating device 10000 is not limited to the structures illustrated inFIGS. 1 through 4 . In other words, according to the design of theaerosol generating device 10000, thebattery 11000, thecontroller 12000, theheater 13000, theinduction coil 13500, and thevaporizer 14000 may be differently arranged. - When the aerosol-generating
article 20000 is inserted into theaerosol generating device 10000, theaerosol generating device 10000 may operate theheater 13000 and/or thevaporizer 14000 to generate aerosol from the aerosol-generatingarticle 20000 and/or thevaporizer 14000. The aerosol generated by theheater 13000 and/or thevaporizer 14000 is delivered to a user by passing through the aerosol-generatingarticle 20000. - As necessary, even when the aerosol-generating
article 20000 is not inserted into theaerosol generating device 10000, theaerosol generating device 10000 may heat theheater 13000. - The
battery 11000 supplies electric power to be used for theaerosol generating device 10000 to operate. For example, thebattery 11000 may supply power to heat theheater 13000 or thevaporizer 14000, and may supply power for operating thecontroller 12000. Also, thebattery 11000 may supply power for operations of a display, a sensor, a motor, etc. mounted in theaerosol generating device 10000. - The
controller 12000 may generally control operations of theaerosol generating device 10000. In detail, thecontroller 12000 may control not only operations of thebattery 11000, theheater 13000, theinduction coil 13500 and thevaporizer 14000, but also operations of other components included in theaerosol generating device 10000. Also, thecontroller 12000 may check a state of each of the components of theaerosol generating device 10000 to determine whether or not theaerosol generating device 10000 is able to operate. - The
controller 12000 may include at least one processor. A processor can be implemented as an array of a plurality of logic gates or can be implemented as a combination of a microprocessor and a memory in which a program executable in the microprocessor is stored. It will be understood by one of ordinary skill in the art that thecontroller 12000 can be implemented in other forms of hardware. - The
heater 13000 may be heated by the power supplied from thebattery 11000. Theheater 13000 is not limited thereto. Theheater 13000 may be heated by a variable magnetic field generated from theinduction coil 13500. In this case, theinduction coil 13500 may generate the variable magnetic field with the power supplied from thebattery 11000. - In one example, as shown in
FIG. 1 , when the aerosol-generatingarticle 20000 is inserted into theaerosol generating device 10000, theheater 13000 may be located inside the aerosol-generatingarticle 20000. Thus, theheated heater 13000 may be in direct contact with an aerosol generating material in the aerosol-generatingarticle 20000 and increase a temperature of the aerosol generating material. - In another example, as shown in
FIGS. 2 to 4 , when the aerosol-generatingarticle 20000 is inserted into theaerosol generating device 10000, theheater 13000 may be located outside the aerosol-generatingarticle 20000. Thus, heat generated from theheater 13000 may be transferred from the outside of the aerosol-generatingarticle 20000 to the aerosol generating material therein - In one example, as shown in
FIGS. 1 to 3 , theheater 13000 may include an electro-resistive heater. For example, theheater 13000 may include an electrically conductive track, and theheater 13000 may be heated when currents flow through the electrically conductive track. However, theheater 13000 is not limited to the example described above and may include all heaters which may be heated to a desired temperature. Here, the desired temperature may be pre-set in theaerosol generating device 10000 or may be set by a user. - As another example, as shown in
FIG. 4 , theheater 13000 may be an induction heating type heater. Theaerosol generating device 13000 may further include aninduction coil 13500 for heating the aerosol-generatingarticle 20000 in an induction heating manner. Theinduction coil 13500 may generate a variable magnetic field as power is supplied from thebattery 11000, and theheater 13000 may include a susceptor that is heated as the variable magnetic field passes through. The susceptor may include metal or carbon. For example, the susceptor may include at least one of ferrite, a ferromagnetic alloy, stainless steel, and aluminum. - In addition, the susceptor may include at least one of graphite, molybdenum, silicon carbide, niobium, a nickel alloy, a metal film, a ceramic such as zirconia, a transition metal such as nickel (Ni) or cobalt (Co), and a metalloid such as boron (B) or phosphorus (P). However, the susceptor included in the
heater 13000 is not limited to the above-described example, and may be used without limitation as long as it may be heated to a desired temperature by applying a variable magnetic field. - The
heater 13000 may include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and may heat the inside or the outside of the aerosol-generatingarticle 20000, according to the shape of the heating element. - Also, the
aerosol generating device 10000 may include a plurality ofheaters 13000. Here, the plurality ofheaters 13000 may be inserted into the aerosol-generatingarticle 20000 or may be arranged outside the aerosol-generatingarticle 20000. Also, some of the plurality ofheaters 13000 may be inserted into the aerosol-generatingarticle 20000 and the others may be arranged outside the aerosol-generatingarticle 20000. In addition, the shape of theheater 13000 is not limited to the shapes illustrated inFIGS. 1 through 4 and may include various shapes. - The
vaporizer 14000 may generate aerosol by heating a liquid composition and the generated aerosol may pass through the aerosol-generatingarticle 20000 to be delivered to a user. In other words, the aerosol generated via thevaporizer 14000 may move along an air flow passage of theaerosol generating device 10000 and the air flow passage may be configured such that the aerosol generated via thevaporizer 14000 passes through the aerosol-generatingarticle 20000 to be delivered to the user. - For example, the
vaporizer 14000 may include a liquid storage, a liquid delivery element, and a heating element, but it is not limited thereto. For example, the liquid storage, the liquid delivery element, and the heating element may be included in theaerosol generating device 10000 as independent modules. - The liquid storage may store a liquid composition. For example, the liquid composition may be a liquid including a tobacco-containing material having a volatile tobacco flavor component, or a liquid including a non-tobacco material. The liquid storage may be formed to be detachable from the
vaporizer 14000 or may be formed integrally with thevaporizer 14000. - For example, the liquid composition may include water, a solvent, ethanol, plant extract, spices, flavorings, or a vitamin mixture. The spices may include menthol, peppermint, spearmint oil, and various fruit-flavored ingredients, but are not limited thereto. The flavorings may include ingredients capable of providing various flavors or tastes to a user. Vitamin mixtures may be a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E, but are not limited thereto. Also, the liquid composition may include an aerosol forming substance, such as glycerin and propylene glycol.
- The liquid delivery element may deliver the liquid composition of the liquid storage to the heating element. For example, the liquid delivery element may be a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic, but is not limited thereto.
- The heating element is an element for heating the liquid composition delivered by the liquid delivery element. For example, the heating element may be a metal heating wire, a metal hot plate, a ceramic heater, or the like, but is not limited thereto. In addition, the heating element may include a conductive filament such as nichrome wire and may be positioned as being wound around the liquid delivery element. The heating element may be heated by a current supply and may transfer heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, aerosol may be generated.
- For example, the
vaporizer 14000 may be referred to as a cartridge, a cartomizer, or an atomizer, but it is not limited thereto. - The
aerosol generating device 10000 may further include other components in addition to thebattery 11000, thecontroller 12000, theheater 13000, theinduction coil 13500, and thevaporizer 14000. For example, theaerosol generating device 10000 may include a display capable of outputting visual information and/or a motor for outputting haptic information. Also, theaerosol generating device 10000 may include at least one sensor (a puff sensor, a temperature sensor, an aerosol-generating article insertion detecting sensor, etc.). Also, theaerosol generating device 10000 may be formed as a structure that, even when the aerosol-generatingarticle 20000 is inserted into theaerosol generating device 10000, may introduce external air or discharge internal air. - Although not illustrated in
FIGS. 1 through 4 , theaerosol generating device 10000 and an additional cradle may form together a system. For example, the cradle may be used to charge thebattery 11000 of theaerosol generating device 10000. Alternatively, theheater 13000 may be heated when the cradle and theaerosol generating device 10000 are coupled to each other. - The aerosol-generating
article 20000 may be similar to a general combustive cigarette. For example, the aerosol-generatingarticle 20000 may be divided into a first portion including an aerosol generating material and a second portion including a filter, etc. Alternatively, the second portion of theaerosol generating article 20000 may also include an aerosol generating material. For example, an aerosol generating material made in the form of granules or capsules may be inserted into the second portion. - The entire first portion may be inserted into the
aerosol generating device 10000, and the second portion may be exposed to the outside. Alternatively, only a portion of the first portion may be inserted into theaerosol generating device 10000, or the entire first portion and a portion of the second portion may be inserted into theaerosol generating device 10000. The user may puff aerosol while holding the second portion by the mouth of the user. In this case, the aerosol is generated by the external air passing through the first portion, and the generated aerosol passes through the second portion and is delivered to the user's mouth. - For example, the external air may flow into at least one air passage formed in the
aerosol generating device 10000. For example, opening and closing of the air passage and/or a size of the air passage formed in theaerosol generating device 10000 may be adjusted by the user. Accordingly, the amount of smoke and a smoking impression may be adjusted by the user. As another example, the external air may flow into the aerosol-generatingarticle 20000 through at least one hole formed in a surface of the aerosol-generatingarticle 20000. -
FIG. 5 is a diagram illustrating an aerosol-generating article according to an example embodiment. - Referring to
FIG. 5 , an aerosol-generatingarticle 20000 may include anaerosol generating section 210, atobacco medium section 220, acooling section 230, afilter section 240, and awrapper 250. The first portion described above may include theaerosol generating section 210 and thetobacco medium section 220, and the second portion may include thecooling section 230 and thefilter section 240. - The
aerosol generating section 210 is located upstream of thetobacco medium section 220 and may include a sheet of non-tobacco material to which a moisturizer is applied. The moisturizer may correspond to an aerosol generating material. For example, the moisturizer may include, but is not limited to, at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. The non-tobacco material is a material that is not a tobacco material, and may be a polymer material or a cellulosic material capable of absorbing a moisturizer. For example, the sheet of non-tobacco material may be a paper sheet that does not generate off-flavor due to heat even when heated to a high temperature. However, the sheet of non-tobacco material is not limited thereto. - On the other hand, the
aerosol generating section 210 may include a wrinkled sheet as the sheet is crimped or compressed, or may include a sheet rolled without crimping. However, theaerosol generating section 210 is not limited thereto, and theaerosol generating section 210 may include a sheet of non-tobacco material having any suitable shape. Theaerosol generating section 210 may include other additive substances such as flavoring agents, wetting agents, and the like. For example, a flavoring liquid such as menthol or a moisturizer may be added by being sprayed onto theaerosol generating section 210. - The
tobacco medium section 220 may be manufactured from a mixture including tobacco powder and thermally conductive powder. The mixture may further include at least one of an additive, a binder, and a moisturizer, and thetobacco medium section 220 may be manufactured in a manner that a slurry, which is produced by adding water to a mixture and mixing the water with the mixture, is dried in a sheet form and then shaped. For example, the mixture may include the tobacco powder, the thermally conductive metal powder (e.g., aluminum), a non-tobacco fiber additive (e.g., pulp) and an exogenous binder (e.g., guar gum) as solids, and further include moisturizer (e.g., glycerin). - The
tobacco medium section 220 may be shaped in various ways. For example, thetobacco medium section 220 may be manufactured as a sheet itself. In this case, thetobacco medium section 220 may be made of a wrinkled sheet as it is crimped or compressed, and may be rolled without being crimped. Thetobacco medium section 220 may be made of a strand produced by cutting a sheet, or may be made of cut filler produced by cutting the sheet into small pieces. - On the other hand, as the
tobacco medium section 220 includes a thermally conductive material (e.g., thermally conductive powder), heat transfer efficiency in the process of heating the aerosol-generatingarticle 20000 may be increased. Accordingly, an abundant amount of aerosol may be provided to the user, and the time required for preheating and power consumption of the battery may be reduced. - However, when the
tobacco medium section 220 includes too much of a thermally conductive material, as the temperature of thetobacco medium section 220 rises greater than the intended level by the preset temperature profile while the aerosol-generatingarticle 20000 is heated, an excessive sense of heat may be transmitted to the user. Accordingly, thetobacco medium section 220 needs to contain a not too large amount of thermally conductive material. Hereinafter, an appropriate content of the thermally conductive powder will be described with reference toFIGS. 6 to 8 . -
FIGS. 6 to 8 are diagrams related to an experiment for determining an appropriate content of the thermally conductive powder. - Referring to the table of
FIG. 6 , a mixing ratio of a mixture corresponding to each of the aerosol-generating articles used in the experiment is described. In this experiment, aluminum (AL) powder is used as a thermally conductive powder, pulp is used as an additive, guar gum is used as a binder, and glycerin is used as a moisturizing agent. - Aerosol-generating article C includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 80 wt % of tobacco raw material, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin. The aerosol-generating article C corresponds to a control group that does not include the thermally conductive powder.
- Aerosol-generating article A5 includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 75 wt % of tobacco raw material, 5 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A10 includes, based on dry weight, a tobacco material section prepared from a mixture consisting of 70 wt % of tobacco raw material, 10 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A15 includes, based on dry weight, a tobacco material section produced from a mixture consisting of 65 wt % of tobacco raw material, 15 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum and 7 wt % of glycerin.
- Aerosol-generating article A20 includes, based on dry weight, a tobacco material section produced from a mixture consisting of 60 wt % of tobacco raw material, 20 wt % of aluminum powder, 5 wt % of pulp, 8 wt % of guar gum, and 7 wt % of glycerin.
- Each of 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 includes a tobacco medium section produced from a slurry generated by mixing with water having a weight corresponding to 500 when the weight of the mixture (i.e., the tobacco material section) is 100.
- Referring to the table of
FIG. 7 , when the aforementioned aerosol-generating articles are heated, results of component analysis of aerosols generated from each aerosol-generating article are shown. - Referring to
FIG. 7 , it may be seen that as the content of aluminum powder included in the aerosol-generating article increases, an amount of transfer of smoke components such as total particulate matter (TPM), nicotine, and glycerin is increased. In other words, it may be seen that as the content of aluminum powder included in the aerosol-generating article increases, a more abundant amount of aerosol may be provided to a user, and a time required for preheating and power consumption of the battery may be reduced. However, as will be described later with reference toFIG. 8 , a greater content of aluminum powder may not necessarily be desirable. - Referring to the graph of
FIG. 8 , when the heater is heated according to a preset temperature profile, a result of measuring the temperature of the tobacco medium section included in each of the aforementioned aerosol-generating articles is shown. - According to the preset temperature profile, the heater for heating the aerosol-generating article may be heated to 270° C. for a period of 0 second to 40 seconds, heated to 240° C. for a period of from 40 seconds to 60 seconds, heated to 235° C. for a period of 60 seconds to 80 seconds, and heated to 230° C. for a period from 80 seconds to 280 seconds. The preset temperature profile may be set such that the target temperature of the end portion of the tobacco medium section, which is not in contact with the heater, is 170° C. or more.
- Referring to
FIG. 8 , it may be seen that the aerosol-generating article C, the aerosol-generating article A5, the aerosol-generating article A10, and the aerosol-generating article A15 are temperature controlled to an intended level by a preset temperature profile. In contrast, it may be seen that the aerosol-generating article A20 has an excessively increased temperature in the initial puff section. - As such, when the tobacco medium section includes too much (i.e., 20 wt % or more) of the thermally conductive material, as the temperature of the tobacco medium section rises greater than the intended level by the preset temperature profile in the process of heating the aerosol-generating article, it may be seen that an excessive sense of heat may be transmitted to the user. Accordingly, it may be preferred that the mixture for making the tobacco medium section includes less than 20 wt % of the thermally conductive material.
- Returning to
FIG. 5 again, the mixture for making thetobacco medium section 220 of the aerosol-generatingarticle 20000 according to the present disclosure may include, based on dry weight, less than 20 wt % of the thermally conductive powder. Accordingly, while the heat transfer efficiency in the process of heating the aerosol-generatingarticle 20000 is increased, the temperature of thetobacco medium section 220 may be controlled to an intended level by the preset temperature profile. - For example, the mixture may include, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder. In more detail, the mixture may include, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of moisturizer. However, it is not necessarily limited thereto, and as long as the content of the thermally conductive powder is less than 20 wt %, the content of other materials may be appropriately changed.
- On the other hand, the characteristics of the aerosol generated from the
tobacco medium section 220 may vary depending on the distribution of the thermally conductive powder included in thetobacco medium section 220 as well as the content of the thermally conductive powder. Hereinafter, a preferred distribution of the thermally conductive powder will be described with reference toFIGS. 9 and 10 . -
FIGS. 9 and 10 are cross-sectional views for explaining the distribution of a thermally conductive powder in a tobacco medium section according to example embodiments. - Referring to
FIG. 9 , there is shown an example of a preferred distribution of a thermallyconductive powder 910 when an aerosol-generating article is heated by heat transferred from outside atobacco medium section 220. - The fact that the aerosol-generating article is heated by heat transmitted from outside the
tobacco medium section 220 may mean that the heater is arranged to surround the outside of thetobacco medium section 220 as shown inFIGS. 2 to 4 . When the heater is arranged to surround outside thetobacco medium section 220, the temperature of acentral region 920 of thetobacco medium section 220 may be lower than the temperature of other regions (i.e., regions other than the central region 920) within thetobacco medium section 220. Accordingly, an aerosol generating material included in the other region than thecentral region 920 may be depleted more rapidly. - According to an example embodiment, the thermally
conductive powder 910 may be distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section 220 (i.e., the center of thetobacco medium section 220 shown in the cross-sectional view ofFIG. 9 ). Accordingly, even if an aerosol generating device used together with the aerosol-generating article includes an external heating type heater, thetobacco medium section 220 may be uniformly heated as a whole. In one example, the amount of the thermally conductive powder included in thecentral region 920 of thetobacco medium section 220 may be twice or more than the amount of powder contained in other regions of thetobacco medium section 220. However, the example embodiment is not necessarily limited thereto. Meanwhile, thecentral region 920 may be a region corresponding to half the diameter of thetobacco medium section 220, but is not limited thereto. - Referring to
FIG. 10 , an example of a preferred distribution of a thermallyconductive powder 1010 is shown when the aerosol-generating article is heated by heat transferred from inside thetobacco medium section 220. - That the aerosol-generating article is heated by heat transferred from inside the
tobacco medium 220 may mean that a heater is arranged to be inserted into thetobacco medium section 220, as shown inFIG. 1 . When the heater is inserted into thetobacco medium section 220, the temperature of thecentral region 1020 of thetobacco medium section 220 may be greater than the temperature of other regions in thetobacco medium section 220. Accordingly, the aerosol generating material included in thecentral region 1020 may be depleted more rapidly than other regions. - According to an example embodiment, the thermally
conductive powder 1010 may be distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section 220 (i.e., the center of thetobacco medium section 220 shown in the cross-sectional view ofFIG. 10 ). Accordingly, even if the aerosol generating device used with the aerosol-generating article includes a heater of an internal heating manner, thetobacco medium section 220 may be uniformly heated as a whole. For example, the amount of the thermallyconductive powder 1010 included in the other region of the tobacco medium section 220 (i.e., a region other than the central region 1020) may be equal to or more than twice the amount of the thermallyconductive powder 1010 included in thecentral region 1020 of thetobacco medium section 220. However, the example embodiment is not necessarily limited thereto. Meanwhile, thecentral region 1020 may be a region corresponding to half the diameter of thetobacco medium section 220, but is not limited thereto. - Returning to
FIG. 5 again, the distribution of the thermally conductive powder included in thetobacco medium section 220 is not necessarily limited to the examples ofFIGS. 9 and 10 . The thermally conductive powder may be uniformly distributed over the entire region of thetobacco medium section 220. - The
cooling section 230 may be located downstream of thetobacco medium section 220 and cool the aerosol generated from at least one of theaerosol generating section 210 and thetobacco medium section 220. Thecooling section 230 may be a tube filter or a paper tube filter including a hollow. However, thecooling section 230 is not limited to the above-described example, and as long as it may perform a function of cooling the aerosol, it may be applicable without limitation. For example, thecooling section 230 may be made of a polymer material or a biodegradable polymer material. Thecooling section 230 may be made of pure polylactic acid, but is not limited thereto. Also, thecooling section 230 may be made of a cellulose acetate filter having a plurality of holes. - The
filter section 240 may be a cellulose acetate filter located downstream of thecooling section 230. On the other hand, the shape of thefilter section 240 is not limited. For example, thefilter section 240 may be a cylindrical rod, or a tube-type rod including a hollow therein. In addition, thefilter section 240 may be a recess type rod. In a case where thefilter section 240 is composed of a plurality of segments, at least one of the plurality of segments may be manufactured in a different shape. - The
filter section 240 may be manufactured to generate flavor. As an example, the flavoring liquid may be injected into thefilter section 240, and a separate fiber to which the flavoring liquid is applied may be inserted into thefilter section 240. - In addition, the
filter section 240 may include at least one capsule. Here, the capsule may perform a function of generating a flavor, or may perform a function of generating an aerosol. For example, the capsule may have a structure in which a liquid containing a fragrance is wrapped with a film. The capsule may have a spherical or cylindrical shape, but is not limited thereto. - The aerosol-generating
article 20000 may be wrapped by thewrapper 250. At least one hole through which external air flows in or internal gas flows out may be formed in thewrapper 250. Although thewrapper 250 is illustrated as a single wrapper inFIG. 5 , thewrapper 250 may be a combination of a plurality of wrappers. Thewrapper 250 may include a thermally conductive wrapper. For example, thewrapper 250 may include an oil-resistant wrapper including a metal layer (e.g., aluminum, copper, etc.). However, thewrapper 250 is not necessarily limited thereto. - Meanwhile, although the aerosol-generating
article 20000 is illustrated as being composed of four segments inFIG. 5 , the aerosol-generatingarticle 20000 is not limited thereto. In other words, the aerosol-generatingarticle 20000 may be composed of a smaller number of segments or a larger number of segments, and may include at least one segment performing a function other than thecooling section 230 and thefilter section 240. - The descriptions of the above-described embodiments are merely examples, and it will be understood by one of ordinary skill in the art that various changes and equivalents thereof may be made. Therefore, the scope of the disclosure should be defined by the appended claims, and all differences within the scope equivalent to those described in the claims will be construed as being included in the scope of protection defined by the claims.
Claims (11)
1. An aerosol-generating article comprising:
a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder,
wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder.
2. The aerosol-generating article of claim 1 , wherein the mixture includes, based on dry weight, 30 wt % to 80 wt % of the tobacco powder, and at least 0.1 wt % and less than 20 wt % of the thermally conductive powder.
3. The aerosol-generating article of claim 1 ,
wherein the mixture further includes at least one of an additive, a binder and a moisturizer, and
the tobacco medium section is produced in a manner that a slurry, which is produced by adding water to the mixture and then mixing the water with the mixture, is dried in a sheet form and then shaped.
4. The aerosol-generating article of claim 3 , wherein the mixture includes, based on dry weight, 60 wt % to 80 wt % of tobacco powder, at least 5 wt % and less than 20 wt % of thermally conductive powder, 3 wt % to 7 wt % of additives, 6 wt % to 10 wt % of binder, and 5 wt % to 12 wt % of a moisturizer.
5. The aerosol-generating article of claim 1 , wherein the thermally conductive powder includes aluminum powder.
6. The aerosol-generating article of claim 1 , wherein, when the aerosol-generating article is heated by heat transferred from outside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section.
7. The aerosol-generating article of claim 1 , wherein, when the aerosol-generating article is heated by heat transferred from inside the tobacco medium section, the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium section.
8. The aerosol-generating article of claim 1 , further comprising:
an aerosol generating section located upstream of the tobacco medium section and including a sheet of non-tobacco material to which a moisturizer is applied;
a cooling section located downstream of the tobacco medium section and configured to cool aerosols generated from at least one of the aerosol generating section and the tobacco medium section; and
a filter section located downstream of the cooling section.
9. An aerosol generating system comprising:
an aerosol-generating article including a tobacco medium section prepared from a mixture including tobacco powder and thermally conductive powder, wherein the mixture includes, based on dry weight, less than 20 wt % of the thermally conductive powder; and
an aerosol generating device including a heater for heating the aerosol-generating article, a battery for supplying power to the heater, and a controller for controlling supply of power from the battery to the heater.
10. The aerosol generating system of claim 9 ,
wherein the heater is arranged to surround the outside of the tobacco medium section, and
the thermally conductive powder is distributed at a greater density, the closer to the longitudinal axis of the tobacco medium section.
11. The aerosol generating system of claim 9 ,
wherein the heater is arranged to be inserted into the tobacco medium section, and
the thermally conductive powder is distributed at a greater density, the farther from the longitudinal axis of the tobacco medium.
Applications Claiming Priority (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
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 (1)
Publication Number | Publication Date |
---|---|
US20230292812A1 true US20230292812A1 (en) | 2023-09-21 |
Family
ID=79171260
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US17/595,168 Pending US20230292812A1 (en) | 2020-08-04 | 2021-07-16 | Aerosol-generating article including thermally conductive material |
Country Status (6)
Country | Link |
---|---|
US (1) | US20230292812A1 (en) |
EP (1) | EP3973793A4 (en) |
JP (1) | JP7359513B2 (en) |
KR (1) | KR102560715B1 (en) |
CN (1) | CN114302654B (en) |
WO (1) | WO2022030799A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2024038094A1 (en) * | 2022-08-16 | 2024-02-22 | Jt International Sa | Genuine consumable smoking article |
Family Cites Families (35)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR910021225A (en) * | 1990-02-27 | 1991-12-20 | 지.로보트 디 마르코 | cigarette |
CA2045278A1 (en) * | 1991-06-21 | 1992-12-22 | Jack F. Clearman | Cigarette |
PT1265504E (en) | 2000-03-23 | 2009-09-04 | Pmpi Llc | Electrical smoking system and method |
US7028694B2 (en) * | 2003-08-22 | 2006-04-18 | Philip Morris Usa Inc. | Method for dispersing powder materials in a cigarette rod |
US20050236006A1 (en) * | 2004-04-24 | 2005-10-27 | Anderson Cowan | Smoking cessation devices, methods of use and methods of conducting business therewith |
JP2006191814A (en) * | 2005-01-11 | 2006-07-27 | Japan Tobacco Inc | Cigarette |
US7726320B2 (en) * | 2006-10-18 | 2010-06-01 | R. J. Reynolds Tobacco Company | Tobacco-containing smoking article |
US8061362B2 (en) * | 2007-07-23 | 2011-11-22 | R. J. Reynolds Tobacco Company | Smokeless tobacco composition |
TW201026242A (en) * | 2008-11-06 | 2010-07-16 | Japan Tobacco Inc | Smoking article and manufacturing method for the same, and method for manufacturing carbon monoxide reducer |
US8997755B2 (en) * | 2009-11-11 | 2015-04-07 | R.J. Reynolds Tobacco Company | Filter element comprising smoke-altering material |
EP2644043A1 (en) * | 2012-03-30 | 2013-10-02 | Philip Morris Products S.A. | Heatable smoking article with improved wrapper |
TWI639393B (en) * | 2012-05-31 | 2018-11-01 | 菲利浦莫里斯製品股份有限公司 | Thermally conducting rods for use in aerosol-generating articles and method of forming the same |
TWI697289B (en) * | 2014-05-21 | 2020-07-01 | 瑞士商菲利浦莫里斯製品股份有限公司 | Aerosol-forming article, electrically heated aerosol-generating device and system and method of operating said system |
TWI670017B (en) * | 2014-05-21 | 2019-09-01 | 瑞士商菲利浦莫里斯製品股份有限公司 | Aerosol-forming substrate and aerosol-delivery system |
US10154689B2 (en) * | 2015-06-30 | 2018-12-18 | R.J. Reynolds Tobacco Company | Heat generation segment for an aerosol-generation system of a smoking article |
CN108135276B (en) * | 2015-10-22 | 2021-08-24 | 菲利普莫里斯生产公司 | Induction heating device for heating an aerosol-forming substrate comprising a susceptor |
KR102037697B1 (en) * | 2015-11-05 | 2019-10-29 | 필립모리스 프로덕츠 에스.에이. | Homogenized Tobacco Material with Meltable Lipids |
US11717018B2 (en) * | 2016-02-24 | 2023-08-08 | R.J. Reynolds Tobacco Company | Smoking article comprising aerogel |
PL3462933T3 (en) * | 2016-05-31 | 2022-03-28 | Philip Morris Products S.A. | Heat diffuser for an aerosol-generating system |
KR102490768B1 (en) * | 2016-08-17 | 2023-01-20 | 필립모리스 프로덕츠 에스.에이. | Aerosol-generating articles with novel tobacco substrates |
CN110325060B (en) * | 2016-12-27 | 2022-11-08 | 尤尔实验室有限公司 | Thermal wick for electronic evaporator |
AR111392A1 (en) * | 2017-03-31 | 2019-07-10 | Philip Morris Products Sa | SUSCEPTING UNIT TO HEAT BY INDUCTION AN AEROSOL FORMER SUBSTRATE |
KR102105548B1 (en) * | 2017-09-26 | 2020-04-28 | 주식회사 케이티앤지 | Method for executing feedback control of aerosol generating apparatus and method thereof |
CN108576912A (en) * | 2018-06-08 | 2018-09-28 | 湖北中烟工业有限责任公司 | The reconstituted tobacoo and its production technology of a kind of metal-containing powders applied to low temperature cigarette |
CN108741206A (en) * | 2018-06-08 | 2018-11-06 | 湖北中烟工业有限责任公司 | The low temperature cigarette and preparation method of loose integrated tobacco segment with high thermal conductivity |
KR102414656B1 (en) * | 2018-07-05 | 2022-06-29 | 주식회사 케이티앤지 | A wrapper comprising metal particles |
US20200035118A1 (en) * | 2018-07-27 | 2020-01-30 | Joseph Pandolfino | Methods and products to facilitate smokers switching to a tobacco heating product or e-cigarettes |
US11265974B2 (en) * | 2018-08-27 | 2022-03-01 | Rai Strategic Holdings, Inc. | Aerosol delivery device with integrated thermal conductor |
KR102414657B1 (en) * | 2018-09-12 | 2022-06-29 | 주식회사 케이티앤지 | A non-flammable wrapper |
US20200128880A1 (en) * | 2018-10-30 | 2020-04-30 | R.J. Reynolds Tobacco Company | Smoking article cartridge |
KR102281867B1 (en) * | 2018-12-05 | 2021-07-26 | 주식회사 케이티앤지 | Aerosol generating article and aerosol generating apparatus used therewith |
US20220007710A1 (en) * | 2018-12-17 | 2022-01-13 | Philip Morris Products S.A. | Tubular element, comprising porous medium and a wrapper, for use with an aerosol generating article |
US20200237018A1 (en) * | 2019-01-29 | 2020-07-30 | Rai Strategic Holdings, Inc. | Susceptor arrangement for induction-heated aerosol delivery device |
CN210929620U (en) * | 2019-10-09 | 2020-07-07 | 湖北中烟工业有限责任公司 | Heating device for low-temperature cigarette |
CN110754682A (en) * | 2019-12-09 | 2020-02-07 | 中国农业科学院烟草研究所 | Tobacco sheet, preparation method thereof and cigarette not burning by heating |
-
2020
- 2020-08-04 KR KR1020200097536A patent/KR102560715B1/en active IP Right Grant
-
2021
- 2021-07-16 CN CN202180004669.6A patent/CN114302654B/en active Active
- 2021-07-16 WO PCT/KR2021/009161 patent/WO2022030799A1/en unknown
- 2021-07-16 JP JP2021563037A patent/JP7359513B2/en active Active
- 2021-07-16 EP EP21798538.1A patent/EP3973793A4/en active Pending
- 2021-07-16 US US17/595,168 patent/US20230292812A1/en active Pending
Also Published As
Publication number | Publication date |
---|---|
CN114302654B (en) | 2024-03-15 |
JP7359513B2 (en) | 2023-10-11 |
JP2022546790A (en) | 2022-11-09 |
WO2022030799A1 (en) | 2022-02-10 |
EP3973793A1 (en) | 2022-03-30 |
KR20220017259A (en) | 2022-02-11 |
EP3973793A4 (en) | 2022-07-27 |
KR102560715B1 (en) | 2023-07-27 |
CN114302654A (en) | 2022-04-08 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US11344067B2 (en) | Aerosol generating apparatus having air circulation hole and groove | |
US11882869B2 (en) | Cigarette with outer wrapper | |
EP3818883A1 (en) | Aerosol-generating article | |
JP2022133413A (en) | Cigarette for aerosol generating device and aerosol generating device using the cigarette | |
KR102527343B1 (en) | Aerosol generating article comprising liquid composition and aerosol generating system comprising the same | |
US20220248746A1 (en) | Cooling structure and a smoking article including the same | |
KR20210043285A (en) | Aerosol generating article, device and system | |
KR20210044064A (en) | Aerosol generating article comprising multiple susceptors | |
US20230073657A1 (en) | Aerosol-generating article and manufacturing method of the same | |
EP3964083A1 (en) | Aerosol generation system | |
US20230292812A1 (en) | Aerosol-generating article including thermally conductive material | |
US20200359678A1 (en) | Aerosol generating article and aerosol generating system | |
US20230145813A1 (en) | Aerosol generating article including porous tobacco solid and method of manufacturing porous tobacco solid | |
EP4088600A1 (en) | Aerosol-generation apparatus for determining whether aerosol-generation article is over-humidified | |
US20240041099A1 (en) | Aerosol generating article and aerosol generating system comprising the same | |
US20230165313A1 (en) | Aerosol generating apparatus including pressure sensor | |
KR102542600B1 (en) | Aerosol generation article and aerosol generating system including the same | |
US20230055093A1 (en) | Cartridge and aerosol generating device comprising the same | |
JP7210721B2 (en) | Cartridge and aerosol generator containing same | |
KR102330302B1 (en) | Method and system for producing aerosol for enhancing transition of nicotine from medium | |
KR20210043286A (en) | Aerosol generating article, device and system | |
KR102480476B1 (en) | Aerosol generating article and system comprising capsule | |
US20230118486A1 (en) | Aerosol generating article, thread filter, and cooling article including thread filter | |
US20240188624A1 (en) | Aerosol generating article including liquid composition and aerosol generating system including the aerosol generating article | |
EP4201234A1 (en) | Aerosol generating device including a plurality of cartridges |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
STPP | Information on status: patent application and granting procedure in general |
Free format text: DOCKETED NEW CASE - READY FOR EXAMINATION |
|
STPP | Information on status: patent application and granting procedure in general |
Free format text: NON FINAL ACTION MAILED |