CN116649614A - Aerosol-generating article - Google Patents
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- CN116649614A CN116649614A CN202210148073.XA CN202210148073A CN116649614A CN 116649614 A CN116649614 A CN 116649614A CN 202210148073 A CN202210148073 A CN 202210148073A CN 116649614 A CN116649614 A CN 116649614A
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- 239000000443 aerosol Substances 0.000 claims abstract description 85
- 239000000758 substrate Substances 0.000 claims abstract description 77
- 238000010438 heat treatment Methods 0.000 claims abstract description 32
- 238000004891 communication Methods 0.000 claims abstract description 3
- 230000000694 effects Effects 0.000 abstract description 10
- 239000000779 smoke Substances 0.000 abstract description 2
- 241000208125 Nicotiana Species 0.000 description 36
- 235000002637 Nicotiana tabacum Nutrition 0.000 description 36
- 235000019504 cigarettes Nutrition 0.000 description 31
- 239000000523 sample Substances 0.000 description 28
- 239000000463 material Substances 0.000 description 15
- 239000007787 solid Substances 0.000 description 14
- 230000000391 smoking effect Effects 0.000 description 13
- 239000000047 product Substances 0.000 description 12
- 239000000126 substance Substances 0.000 description 12
- 229920006221 acetate fiber Polymers 0.000 description 11
- 238000005553 drilling Methods 0.000 description 10
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 8
- 229910052782 aluminium Inorganic materials 0.000 description 8
- 239000011888 foil Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 210000000214 mouth Anatomy 0.000 description 7
- PEDCQBHIVMGVHV-UHFFFAOYSA-N Glycerine Chemical compound OCC(O)CO PEDCQBHIVMGVHV-UHFFFAOYSA-N 0.000 description 5
- SNICXCGAKADSCV-JTQLQIEISA-N (-)-Nicotine Chemical compound CN1CCC[C@H]1C1=CC=CN=C1 SNICXCGAKADSCV-JTQLQIEISA-N 0.000 description 4
- 150000001875 compounds Chemical class 0.000 description 4
- 230000001965 increasing effect Effects 0.000 description 4
- 230000001788 irregular Effects 0.000 description 4
- 229960002715 nicotine Drugs 0.000 description 4
- SNICXCGAKADSCV-UHFFFAOYSA-N nicotine Natural products CN1CCCC1C1=CC=CN=C1 SNICXCGAKADSCV-UHFFFAOYSA-N 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 235000019505 tobacco product Nutrition 0.000 description 4
- 238000012546 transfer Methods 0.000 description 4
- DNIAPMSPPWPWGF-UHFFFAOYSA-N Propylene glycol Chemical compound CC(O)CO DNIAPMSPPWPWGF-UHFFFAOYSA-N 0.000 description 3
- 230000008901 benefit Effects 0.000 description 3
- 238000001816 cooling Methods 0.000 description 3
- 238000013461 design Methods 0.000 description 3
- 238000011144 upstream manufacturing Methods 0.000 description 3
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 2
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000008859 change Effects 0.000 description 2
- 230000001276 controlling effect Effects 0.000 description 2
- 235000011187 glycerol Nutrition 0.000 description 2
- 210000003128 head Anatomy 0.000 description 2
- 238000003780 insertion Methods 0.000 description 2
- 230000037431 insertion Effects 0.000 description 2
- 230000014759 maintenance of location Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000005086 pumping Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- FLAQQSHRLBFIEZ-UHFFFAOYSA-N N-Methyl-N-nitroso-4-oxo-4-(3-pyridyl)butyl amine Chemical compound O=NN(C)CCCC(=O)C1=CC=CN=C1 FLAQQSHRLBFIEZ-UHFFFAOYSA-N 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004480 active ingredient Substances 0.000 description 1
- 239000005030 aluminium foil Substances 0.000 description 1
- 229910021529 ammonia Inorganic materials 0.000 description 1
- 238000000889 atomisation Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 239000003610 charcoal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000009833 condensation Methods 0.000 description 1
- 230000005494 condensation Effects 0.000 description 1
- 239000013068 control sample Substances 0.000 description 1
- MLUCVPSAIODCQM-NSCUHMNNSA-N crotonaldehyde Chemical compound C\C=C\C=O MLUCVPSAIODCQM-NSCUHMNNSA-N 0.000 description 1
- MLUCVPSAIODCQM-UHFFFAOYSA-N crotonaldehyde Natural products CC=CC=O MLUCVPSAIODCQM-UHFFFAOYSA-N 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000007865 diluting Methods 0.000 description 1
- 238000010790 dilution Methods 0.000 description 1
- 239000012895 dilution Substances 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 238000009826 distribution Methods 0.000 description 1
- 230000002708 enhancing effect Effects 0.000 description 1
- 239000000796 flavoring agent Substances 0.000 description 1
- 235000019634 flavors Nutrition 0.000 description 1
- 238000004817 gas chromatography Methods 0.000 description 1
- 239000003365 glass fiber Substances 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- LELOWRISYMNNSU-UHFFFAOYSA-N hydrogen cyanide Chemical compound N#C LELOWRISYMNNSU-UHFFFAOYSA-N 0.000 description 1
- 239000004615 ingredient Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000009828 non-uniform distribution Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000008188 pellet Substances 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 230000035699 permeability Effects 0.000 description 1
- 229920000747 poly(lactic acid) Polymers 0.000 description 1
- 239000004626 polylactic acid Substances 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- -1 polypropylene Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
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- 230000002195 synergetic effect Effects 0.000 description 1
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Classifications
-
- 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
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/22—Cigarettes with integrated combustible heat sources, e.g. with carbonaceous heat sources
-
- 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
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/17—Filters specially adapted for simulated smoking devices
Landscapes
- Catching Or Destruction (AREA)
- Nozzles (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Abstract
The present application relates to an aerosol-generating article comprising an aerosol-generating substrate; a first portion having a first cavity extending therethrough in a first direction; a second portion having a second cavity extending therethrough in a first direction, the first cavity being in communication with the second cavity; the third part is sequentially arranged along the first direction, and aerosol generated by heating the aerosol generating substrate through the heating body can sequentially pass through the first part, the second part and the third part; the aerosol-generating substrate has a pressure drop of P D 1, the total pressure drop of the first part, the second part and the third part is P D 2, wherein, P is more than or equal to 0.5 D 1/P D 2 is less than or equal to 5. The aerosol-generating article of the application has a good aerosol-releasing smoke effect.
Description
Technical Field
The application relates to the technical field of aerosol generation, in particular to an aerosol generating product.
Background
In recent years, aerosol-generating articles have received attention from a wide range of tobacco consumers and are rapidly rising worldwide, pushing the world tobacco landscape to undergo tremendous revolution. Aerosol-generating articles are of great interest as a new type of tobacco in which the aerosol-forming substrate, such as the substrate of tobacco, is heated rather than combusted, with the significant advantage of reducing the amount of harmful ingredients released.
The current heating non-burning cigarette products are mainly composed of two parts: the cigarette and the heating device have basically no difference from the common cigarette in appearance, and accord with the characteristic of heating the non-burning cigarette, but the heating device needs to be carried, so that inconvenience is brought to consumers.
There is also a new kind of tobacco products, the cigarettes themselves are provided with heating sources, and the carrying is convenient. Existing self-heating non-combustible cigarettes include a self-heating source, such as carbon, at the end of the cigarette and a tobacco substrate, which are wrapped in a cigarette paper. The cigarette paper comprises aluminum foil and a paper layer which is not burnt after heating, wherein the aluminum foil wraps tobacco matrixes and a self-heating source, and the aluminum foil is wrapped on the paper layer. After ignition of the charcoal, the aluminum foil transfers heat to the tobacco substrate, which does not burn but its internal volatile components are released and condensed and atomized to form an aerosol for smoking.
In the prior art, a cigarette paper improved for adapting to heating a non-burning cigarette is described, for example, chinese patent document with publication number of CN104452479B discloses a composite cigarette paper, the appearance of a cigarette made of the cigarette paper is similar to that of the existing cigarette, when the cigarette paper is smoked, tobacco shreds are heated through heat generated by burning of outer-layer cigarette paper, and volatile components such as aroma components and nicotine generated by heating and volatilizing the tobacco shreds enter an oral cavity along with smoking, so that the cigarette paper becomes a unique novel low-temperature non-burning tobacco product.
For another example, chinese patent publication No. CN204224923U discloses a cigarette paper with a certain thickness, high air permeability and high gram weight, then aluminum foil is compounded on the cigarette paper through a binder, and then laser, electrostatic or mechanical punching is performed, so that the appearance of a cigarette made of the cigarette paper is similar to that of the existing cigarette, an aluminum foil layer directly contacts with tobacco shreds after the cigarette is rolled, when the cigarette is ignited, the aluminum foil is heated by burning of the cigarette paper layer to transfer the aluminum foil to the tobacco shreds, and volatile components such as aroma components generated by heating and volatilizing the tobacco shreds and nicotine enter an oral cavity along with smoking, thereby forming a unique novel tobacco product.
The main problem with aerosol-generating articles is the low amount of smoke and the high aerosol temperature. The reasons mainly include two aspects: on one hand, the aerosol generating product has lower heating temperature than the traditional cigarette, and the aerosol has high water content, so the aerosol generating product has higher sensing temperature than the traditional cigarette aerosol; on the other hand, the aerosol-generating article is short in length, and the aerosol passage is shortened, resulting in a phenomenon that the inlet aerosol temperature is high. The conventional solid acetate tow of the traditional cigarette has high aerosol retention rate, so that the release of aerosol-generating products is less, and the consumption experience of consumers is affected.
Disclosure of Invention
The application solves the problems that aerosol generating products have poor aerosol fuming effect and poor smoking experience of consumers.
In order to solve the above problems, an object of the present application is to provide an aerosol-generating article comprising: an aerosol-generating substrate; a first portion having a first cavity extending therethrough in a first direction; a second portion having a second cavity extending therethrough in the first direction, the first cavity and the second cavity being in communication; a third portion, along the first direction, the aerosol-generating substrate, the first portion, the second portion, and the third portion are sequentially disposed, and an aerosol generated by heating the aerosol-generating substrate by the heating body can sequentially pass through the first portion, the second portion, and the third portion; the aerosol-generating substrate has a pressure drop of P D 1, the total pressure drop of the first part, the second part and the third part is P D 2, wherein, P is more than or equal to 0.5 D 1/P D 2≤5。
By adopting the scheme, the aerosol generating substrate is heated by the heating body to generate aerosol, and the aerosol flows through the first cavity, the second cavity and the third part in sequence and is sucked by a user. In the pressure drop ratio range, the fuming effect of aerosol released by the aerosol generating product can be effectively improved, and the user consumption experience is good.
The term "aerosol-generating article" is used herein to describe an article comprising an aerosol-forming substrate that may be heated to generate and deliver an aerosol to a consumer. The term "aerosol-forming substrate" means a substrate capable of releasing volatile compounds upon heating to produce an aerosol. During use, volatile compounds are released from the aerosol-forming substrate by heat transfer. The term 'aerosol-forming substrate' means or comprises an aerosol-forming substrate which upon heating is capable of releasing volatile compounds to generate an aerosol. The "aerosol-forming substrate" may be a solid aerosol-forming substrate. The aerosol-forming substrate may comprise a tobacco-containing material containing volatile tobacco flavour compounds that are released from the substrate upon heating. The aerosol-forming substrate may comprise a non-tobacco material. The aerosol-forming substrate may comprise an aerosol-former. The aerosol former may comprise at least one of glycerol and propylene glycol. In embodiments where the aerosol-forming substrate is a solid aerosol-forming substrate, the solid aerosol-forming substrate may comprise one or more of: a powder, granule, pellet, chip, tube, strip or sheet comprising one or more of the following: herbal leaf, tobacco lamina, reconstituted tobacco, homogenized tobacco, extruded tobacco and expanded tobacco. The solid aerosol-forming substrate may be in loose form. The aerosol-forming substrate may comprise a rod of solid aerosol-forming substrate. The wrapper may encase a rod of solid aerosol-forming substrate.
In some possible embodiments, the third portion is a non-cavity structure.
In some possible embodiments, 100 Pa.ltoreq.P D 1≤300Pa。
In some possible embodiments, 100 Pa.ltoreq.P D 1≤200Pa。
In some possible embodiments, P D 2≤250Pa。
In some possible embodiments, P D 2≤100Pa。
In some possible embodiments, the outer surface of the second portion is provided with perforations communicating with the second cavity.
In some possible embodiments, the outer surface of the second portion is provided with one or more rows of perforation sets, the perforation sets of each row comprising a plurality of the perforations.
In some possible embodiments, the number of perforations is N, where 1.ltoreq.N.ltoreq.10.
In some possible embodiments, 2.ltoreq.N.ltoreq.8.
In some possible embodiments, the perforations have an equivalent diameter D, where 0.1 mm.ltoreq.D.ltoreq.0.5 mm.
In some possible embodiments, 0.1 mm.ltoreq.D.ltoreq.0.4 mm.
In some possible embodiments, the first cavity is a constant cross-section body and the second cavity is a constant cross-section body.
In some possible embodiments, the equivalent diameter of the first cavity is D1, and the equivalent diameter of the second cavity is D2, 1.ltoreq.D2/D1.ltoreq.3.
In some possible embodiments, the equivalent diameter of the first cavity is 2mm to 4mm.
In some possible embodiments, the equivalent diameter of the second cavity is 4mm to 6mm.
In some possible embodiments, the first portion and the second portion are both filter rods.
In order that the above-recited features of the present application can be understood in detail, a preferred embodiment of the application is illustrated in the accompanying drawings.
Drawings
Fig. 1 is a schematic structural view of an aerosol-generating article according to an embodiment of the application;
fig. 2 is a graph of the results of a suction temperature test of an aerosol-generating article according to an embodiment of the application.
Detailed Description
Further advantages and effects of the present application will become apparent to those skilled in the art from the disclosure of the present specification, by describing the embodiments of the present application with specific examples. While the description of the application will be described in connection with the preferred embodiments, it is not intended to limit the inventive features to the implementation. Rather, the purpose of the application described in connection with the embodiments is to cover other alternatives or modifications, which may be extended by the claims based on the application. The following description contains many specific details for the purpose of providing a thorough understanding of the present application. The application may be practiced without these specific details. Furthermore, some specific details are omitted from the description in order to avoid obscuring the application. It should be noted that, without conflict, the embodiments of the present application and features of the embodiments may be combined with each other.
Referring to fig. 1, the present application provides an aerosol-generating article comprising: an aerosol-generating substrate 1, a first portion 2, a second portion 3 and a third portion 4 arranged in that order along a first direction (shown as X-direction in fig. 1). Illustratively, the aerosol-generating substrate 1 includes, but is not limited to, tobacco materials, including, but not limited to, cut tobacco, tobacco flake filaments, tobacco particles, and combinations thereof, aerosol-generating substrates, and the like.
The order of bonding of the aerosol-generating substrate 1, the first part 2, the second part 3 and the third part 4 during manufacture is not limited. Illustratively, the first portion 2, the second portion 3 and the third portion 4 are first molded as one piece and then combined with the aerosol-generating substrate 1 into an aerosol-generating article. In some possible embodiments, the aerosol-generating substrate 1 and the first portion 2 are combined to form a first combination, the second portion 2 and the third portion 3 are combined to form a second combination, and the first combination and the second combination are connected to form the aerosol-generating article described above.
Illustratively, in a first direction, the aerosol-generating substrate 1 abuts the first portion 2. Illustratively, in a first direction, the first portion 2 abuts the second portion 3. Illustratively, the second portion 3 abuts against the third portion 4. Illustratively, in a first direction, both ends of the first part 2 are against the aerosol-generating substrate 1 and the second part 3, respectively, and both ends of the second part 3 are against the first part 2 and the third part 4, respectively.
The aerosol-generating substrate 1, the first part 2, the second part 3 and the third part 4 are wrapped in an aerosol-generating article by a wrapper, for example aluminium foil, the aerosol-generating article being cylindrical and the direction of extension of the aerosol-generating article being identical to the first direction. Illustratively, the aerosol-generating substrate 1 is a solid aerosol-forming substrate containing a tobacco component. The aerosol generating product does not burn in the working process, and can greatly reduce the release of a large amount of harmful substances caused by high-temperature combustion. Illustratively, the wrapper used for the outer layer of the aerosol-generating article is a gas impermeable material. In some possible embodiments, the wrapper may be absent.
Illustratively, the first portion 2, the second portion 3, and the third portion 4 are acetate fibers. Illustratively, the first portion 2, the second portion 3, and the third portion 4 are filter rods. The second part 3 is illustratively a hollow tube, which serves as a support.
I.e. the first portion 2, the second portion 3 and the third portion 4 constitute the filter portion of the aerosol-generating article. The filter portion mainly serves to reduce the release of harmful substances and to reduce the aerosol temperature. Illustratively, the filter portion may function to effectively reduce the release of NNK, crotonaldehyde, phenol, HCN, ammonia, baP, and other harmful substances. At the same time, the filter part also reduces the interception of substances such as aroma substances, nicotine and the like as much as possible.
In this embodiment, the aerosol-generating substrate 1 is adapted for insertion of a heating body (not shown) to generate an aerosol for inhalation by a user, and the end of the third portion 4 not connected to the second portion 3 is the inhalation end. The first part 2 has a first cavity 21, the first cavity 21 extending through the first part 2 in a first direction; the second part 3 has a second cavity 31, the second cavity 31 extending through the second part 3 in the first direction; the third portion 4 is a non-cavity structure; the first cavity 21 and the second cavity 31 are communicated. Illustratively, the non-cavity structure described above is such that the third portion 4 does not include cavities extending in the first direction.
The aerosol generating substrate 1 is heated by the heating body to generate aerosol, and the aerosol flows through the aerosol channel for being sucked by a user, that is, the aerosol flows through the first cavity 21, the second cavity 31 and the third cavity 41 in sequence for being sucked by the user, so that the fuming effect of the aerosol released by the aerosol generating product can be effectively improved.
In the present application, the aerosol-generating substrate has a pressure drop of P D 1, the total pressure drop of the first part 2, the second part 3 and the third part 4 is P D 2, i.e. the total pressure drop across the filter portion is P D 2. Illustratively, when a user inhales the aerosol-generating article of the present application, the aerosol-generating substrate has a pressure drop of P D 1, the total pressure drop of the first part 2, the second part 3 and the third part 4 is P D 2, i.e. the total pressure drop across the filter portion is P D 2. Wherein P is more than or equal to 0.5 D 1/P D 2 is less than or equal to 5. The aerosol-generating substrate 1 provides sufficient tobacco material, the filter portions (first portion 2, second portion 3 and third portion 4) entrap harmful material, reduce the aerosol temperature and deliver the tobacco material to the consumer. The pressure drop design of the aerosol-generating substrate 1 and the filter portions (the first portion 2, the second portion 3 and the third portion 4) is within the above pressure drop parameter ratio range, so that the synergistic effect of aerosol atomization and cooling can be achieved.
When P D 1/P D When the ratio of 2 is too small, that is, when the filter part material and structure are unchanged, the resistance of the gas flowing through the aerosol-generating substrate 1 under the corresponding conditions is too small, the total amount of tobacco substances in the corresponding aerosol-generating substrate 1 is too small, the tobacco substances in the corresponding aerosol-generating substrate are piled up and fluffy, quality defects such as loosening or collapse of the tobacco substrate are easily formed, the total amount of aerosol components released by the aerosol-generating product and the corresponding aerosol amount are reduced, and the smoking experience of consumers is influenced.
When P D 1/P D 2, i.e. when the filter portion material and structure are unchanged, the resistance of the gas flowing through the aerosol-generating substrate 1 under the corresponding conditions is high, the tobacco material in the corresponding aerosol-generating substrate 1 is too much, the filling is too compact, the overall heating condition of the tobacco substrate is poor, in addition, in view of the characteristics of the perforation of the filter portion in the application, the air can enter from the perforation of the filter with lower resistance when the consumer sucks, and the aerosol is dilutedThe concentration of tobacco material also affects the consumer's smoking experience.
Thus, 0.5.ltoreq.P D 1/P D The design of 2.ltoreq.5 enables a better pumping experience of the aerosol-generating article to be achieved.
Illustratively, the above-described pressure drop test method is as follows: according to the national standard of GB/T22838, the sample to be measured is completely sealed in the measuring device to ensure no air leakage, and the static pressure difference across the sample is measured when the sample is passed by a steady flow of air and the output flow rate is 17.5mL/s under standard conditions.
In some possible embodiments, 100 Pa.ltoreq.P D 1 Pa is less than or equal to 300Pa. In some possible embodiments, 100 Pa.ltoreq.P D 1 Pa is less than or equal to 200Pa. In some possible embodiments, P D 2 Pa is less than or equal to 250Pa. In some possible embodiments, P D 2≤100Pa。
Materials used for the first, second and third portions 2, 3 and 4 include, but are not limited to, acetate tow, polypropylene tow, polylactic acid tow, paper and polymers. By working such that the total pressure drop P of the first part 2, the second part 3 and the third part 4 D 2 are within the above parameters.
In some possible embodiments, perforating the cavity portions (e.g., the first cavity 21 and the second cavity 31) of the aerosol-generating article may be effective to reduce the temperature of the aerosol at the outlet of the aerosol-generating article. During the inhalation process, air enters the interior of the aerosol-generating article through the apertures, and the temperature of the aerosol at the outlet of the aerosol-generating article is reduced by means of air dilution, gas condensation, and the like, to provide a good inhalation experience for the consumer.
In some possible embodiments, the second cavity 31 of the aerosol-generating article is perforated. The outer surface of the second part 3 is provided with perforations (not shown) communicating with the second cavity 31. In some possible embodiments, the outer surface of the second portion 3 is provided with one or more rows of perforation sets, each row of perforation sets comprising a plurality of perforations. The shape of the perforations in the second cavity 31 includes, but is not limited to, circular, oval, bar-shaped, etc., and the arrangement of the holes includes, but is not limited to, one or more rows of holes, with the hole distribution including uniform or non-uniform distribution.
Illustratively, when P is as described above D 1/P D 2, so that when the ratio is too large, the characteristic of the partial perforation of the filter of the present application is such that when the consumer draws, air will enter more from the less resistant perforation of the filter, diluting the concentration of tobacco material in the aerosol, also affecting the consumer's smoking experience. Thus, 0.5.ltoreq.P D 1/P D The design of 2.ltoreq.5 enables a better pumping experience of the aerosol-generating article to be achieved.
In some possible embodiments, the number of perforations is N, where 1.ltoreq.N.ltoreq.10. In some possible embodiments, 2.ltoreq.N.ltoreq.8. In some possible embodiments, the equivalent diameter of the perforations is D, where 0.1 mm.ltoreq.D.ltoreq.0.5 mm. For circular perforations, the equivalent diameter of the perforation is the diameter of the circular hole. For non-circular perforations or irregular perforations, the area corresponding to the equivalent diameter of the perforations is equal to the area corresponding to the non-circular perforations or irregular perforations. In some possible embodiments, 0.1 mm.ltoreq.D.ltoreq.0.4 mm. With this arrangement, the temperature of the aerosol at the outlet of the aerosol-generating article can be effectively reduced.
The second cavity 31 is perforated in a manner including, but not limited to, mechanical perforation and in-line laser perforation. Illustratively, online laser drilling is used.
The use of an on-line laser drilling technique to drill the second cavity 31 has the advantage of being easier to adjust than mechanical drilling, and the position, size, number, shape, etc. of the holes can be quickly adjusted according to practical situations. The laser drilling device needs to meet high power conditions for penetrating through wrapping paper and the cavity wall of the second cavity 31 so that the laser drilling device has ventilation effect. During the manufacture of the aerosol-generating article, when the aerosol-generating article is moved to the position of the laser drilling drum, the high-energy laser beam is focused by the focusing head onto the second cavity 31, and the second cavity 31 is perforated. The size and shape of the hole at the second cavity 31 can be adjusted by controlling the time of the laser drilling equipment, the speed of the cigarette making machine and other parameters; the number of holes in each row in the circumferential direction at the second cavity 31 can be adjusted by controlling the laser drilling frequency; increasing the number of focusing heads of the laser drilling device can realize multiple rows of holes.
Wherein, in the first direction, the length of the first cavity 21 coincides with the length of the first portion 2, the length of the second cavity 31 coincides with the length of the second portion 3, and the length of the third cavity 41 coincides with the length of the third portion 4.
Wherein a user draws in the aerosol-generating article to generate an aerosol which flows from "upstream" to "downstream" of the aerosol-generating article (indicated in direction a in fig. 1), the second portion 3 has a sidewall upstream end and a sidewall downstream end in the direction of aerosol flow, the sidewall upstream end of the second portion 3 being disposed towards the first portion 2 and the sidewall downstream end of the second portion 3 being disposed towards the third portion 4.
Illustratively, referring to FIG. 1, the first cavity 21 is a constant cross-section body, the second cavity 31 is a constant cross-section body, and the third cavity 41 is a constant cross-section body. That is, the first cavity 21 has a hollow columnar shape, the second cavity 31 has a hollow columnar shape, and the second cavity 31 has a hollow columnar shape.
Illustratively, the equivalent diameter of the first cavity 21 is D1 and the equivalent diameter of the second cavity 31 is D2. For cavities, the equivalent diameter of the cavity is the diameter of a circular cavity. For the non-circular cavity or the irregular cavity, the area corresponding to the equivalent diameter of the cavity is equal to the area corresponding to the non-circular cavity or the irregular cavity.
Wherein, D2/D1 is more than or equal to 1.2 and less than or equal to 3. That is, the second cavity 31 of the second part 3 has a larger aperture than the first cavity 21 of the first part 2. That is, the first cavity 21 of the first part 2 is a "small cavity structure", and the second cavity 31 of the second part 3 is a "large cavity structure".
When D2/D1 is too large, i.e. D2 is too large or D1 is too small, the too large D2 may cause quality problems such as deformation or even breakage of the aerosol-generating article due to insufficient strength of the second portion 3 to support insertion of the heating element into the aerosol-generating substrate, too small D1 corresponds to too thick wall thickness of the first portion, which may increase the trapping effect on the aerosol, and simultaneously, heat transfer resistance corresponding to the portion is too large to be unfavorable for cooling the aerosol, which may cause too high temperature of the outlet aerosol to affect the consumption experience; when D2/D1 is too small, i.e. D2 is too large or too small in synchronization with D1, problems of insufficient strength or too high aerosol retention effect of the aerosol-generating article and too high outlet aerosol temperature may also be caused.
The equivalent diameter of the first cavity 21 is illustratively 2mm to 4mm, including 2mm and 4mm. More illustratively, the equivalent diameter of the second cavity 31 is 4mm to 6mm, including 4mm and 6mm. Within such parameters, the aerosol-generating article of the present application has good aerosol-generating efficacy.
The filter part (the first part 2, the second part 3 and the third part 4 adopt a combined form of a small cavity structure, a large cavity structure and a solid core structure, and aerosol temperature reduction is carried out by utilizing laser drilling, the wall thickness and the strength of the small cavity structure can prevent the axial displacement of tobacco substances possibly occurring in the process of inserting a heating element into the aerosol generating substrate 1, the pressure of heated aerosol is reduced when the heated aerosol passes through the small-volume first cavity 2 to the large-volume second cavity 3, the corresponding temperature is reduced, and the abrupt change of the flow field is beneficial to enhancing convection heat exchange so as to promote the aerosol temperature reduction.
In addition, the small thermal resistance corresponding to the thin wall of the large cavity structure is beneficial to cooling of the aerosol, and meanwhile, the side wall of the second cavity 3 is perforated, and the water vapor in the aerosol is promoted to condense and release heat in advance through the supplement of cold air in the sucking process, so that the temperature of the aerosol system at the outlet end of the filter tip part is further reduced, and the overheat of the aerosol is prevented. Exemplary, the filter portion outlet end aerosol temperature is between 40 ℃ and 70 ℃, including 40 ℃ and 70 ℃.
In addition, the reduced gas flow resistance of the third portion 4 (or filter portion) of the present application is effective to avoid excessive entrapment of the aerosol active ingredient.
The content comparison of aerosol key substances and the aerosol outlet temperature comparison under different pressure drop parameters of the tobacco product of the embodiment of the application are described in detail below.
Example 1
The present embodiment controls the aerosol-generating substrate 1 unchanged, varying the pressure drop across the filter portion to adjust P D 1 and P D 2, samples 1 to 3 were adjusted for filters mainly by perforationPartial pressure drop.
The sample 1 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4. The second cavity 3 is a large hollow acetate fiber filter stick structure, 3 holes are drilled on the outer surface of the second cavity 3, and the aperture of each hole is 0.3mm. The third part 4 is a solid acetate fiber filter stick structure. Pressure drop P of aerosol-generating substrate 1 D 1 is 180Pa, the total pressure drop P of the filter portion D 2 is 50Pa, P D 1/P D 2 is 3.6.
The sample 2 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4. The second cavity 3 is a large hollow acetate fiber filter stick structure, 5 holes are drilled on the outer surface of the second cavity 3, and the aperture of each hole is 0.3mm. The third part 4 is a solid acetate fiber filter stick structure. Pressure drop P of aerosol-generating substrate 1 D 1 is 180Pa, the total pressure drop P of the filter portion D 2 is 40Pa, P D 1/P D 2 is 4.5.
The sample 3 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4. The second cavity 3 is a large hollow acetate fiber filter stick structure, and the outer surface of the second cavity 3 is not perforated. The third part 4 is a solid acetate fiber filter stick structure. Pressure drop P of aerosol-generating substrate 1 D 1 is 180Pa and the total pressure drop of the filter part is P D 2 is 60Pa, P D 1/P D 2 is 3.
The aerosol-generating article is used with a heating appliance, and the specific method comprises the following steps: and respectively placing the aerosol-generating products into the same heating smoking set for sucking, wherein the key pressing time of the heating set is 2.4s, the first mouth is sucked after 14.6s intervals, each mouth is sucked for 2s, the next mouth is sucked after 28 seconds intervals, the trapping is finished after the 8 th mouth is sucked, and each cigarette is trapped for 8 mouths.
The aerosol-generating article was smoked in combination with a heating appliance on a smoking machine with a bell wave smoking, the smoking regimen being a Canadian deep draw method with a puff volume of 55mL, while aerosol was collected with a glass fiber filter aerosol trap for use in gas chromatography to determine nicotine and glycerin content.
Meanwhile, 3 samples were smoked on a smoking machine using a heater, a thermocouple was fixed at the center of the aerosol outlet of the aerosol-generating article, and the thermocouple was connected to a temperature data acquisition system for measuring the outlet temperature at the time of aerosol smoking.
The different perforation of the 3 samples changed the total pressure drop across the filter section and thus also affected P D 1/P D The value of 2, in turn, affects the aerosol content and the outlet temperature of the aerosol. The above aspiration procedure was repeated several times, and 3 samples were subjected to determination of the content of key components in the aerosol trap and the aerosol outlet temperature, and the average value obtained by the multiple measurements was as shown in table 1 below.
TABLE 1 content of key substances in aerosol emissions and aerosol outlet temperature comparison
The highest temperature of the aerosol at the aerosol outlets of the sample 1, the sample 2 and the sample 3 is shown in fig. 2, the highest temperature of the aerosol at the outlet is measured by using a thermocouple, namely, each mark point in the graph is only indicated by a connecting line of each mark point, and the connecting line of each mark point is not representative of the actual temperature change trend.
From table 1, it can be seen that the aerosol-generating articles of sample 1, sample 2, and sample 3 have good aerosol-generating effect, and the aerosol outlet temperature meets the requirements.
Example two
The control filter portion is unchanged and P is regulated by changing the pressure drop of the aerosol generating substrate D 1 and P D 2, the control sample is sample 1.
The sample 4 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4, the internal structure and the way of perforation being identical to the sample 1. Pressure drop P of aerosol-generating substrate 1 D 1 is 210Pa and the total pressure drop of the filter part is P D 2 is 50Pa, P D 1/P D 2 is 4.2. The pressure drop of the aerosol-generating substrate 1 in sample 4 is increased by increasing the amount of tobacco material compared to sample 1.
TABLE 2 alignment of key substances in aerosol emissions
Example III
The present embodiment controls the aerosol-generating substrate 1 unchanged, varying the pressure drop across the filter portion to adjust P D 1 and P D 2, sample 5 and sample 6 regulate the pressure drop across the filter portion, mainly by changing the structure of the second cavity 3 and the material of the third portion 4.
The sample 5 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4. The second cavity 3 is a small hollow acetate fiber filter stick structure, and the perforating treatment is not carried out because the wall of the cavity filter tip is thicker. The third part 4 is a solid acetate fiber filter stick structure. Pressure drop P of aerosol-generating substrate 1 D 1 is 180Pa, and the total pressure drop of the filter part is P D 2 is 150Pa, P D 1/P D 2 is 1.2.
The sample 6 comprises an aerosol-generating substrate 1, a first cavity 2, a second cavity 3 and a third portion 4. The second cavity 3 and the sample 5 are of a small hollow acetate fiber filter stick structure, and are not perforated. The third part 4 is a solid acetate fiber filter stick structure, and the pressure drop is larger than that of the sample 5. Pressure drop P of aerosol-generating substrate 1 D 1 is 180Pa, and the total pressure drop of the filter part is P D 2 is 220Pa, P D 1/P D 2 is 0.8.
In comparative sample 1, the filter portion structure of sample 5 was changed, while the structure of only the second cavity 3 was changed, P D The 2 value increases a little. Further, the third portion 4 of sample 5 is increased in pressure drop to form sample 6, sample 6P D The value of 2 increases.
TABLE 3 alignment of key substances in aerosol emissions
The experimental result shows that the aerosol generating product has good aerosol releasing fuming effect.
Claims (17)
1. An aerosol-generating article comprising:
an aerosol-generating substrate;
a first portion having a first cavity extending therethrough in a first direction;
a second portion having a second cavity extending therethrough in the first direction, the first cavity and the second cavity being in communication;
a third portion, along the first direction, the aerosol-generating substrate, the first portion, the second portion, and the third portion are sequentially disposed, and an aerosol generated by heating the aerosol-generating substrate by the heating body can sequentially pass through the first portion, the second portion, and the third portion;
the aerosol-generating substrate has a pressure drop of P D 1, the total pressure drop of the first part, the second part and the third part is P D 2, wherein, P is more than or equal to 0.5 D 1/P D 2≤5。
2. An aerosol-generating article according to claim 1, wherein the third portion is a non-cavity structure.
3. An aerosol-generating article according to claim 1 or 2, wherein 100Pa +.p D 1≤300Pa。
4. An aerosol-generating article according to claim 3, wherein 100 pa+.p D 1≤200Pa。
5. An aerosol-generating article according to any one of claims 1 to 4, wherein P D 2≤250Pa。
6. An aerosol-generating article according to claim 5, wherein P D 2≤100Pa。
7. An aerosol-generating article according to any of claims 1 to 6, wherein the outer surface of the second portion is provided with perforations communicating with the second cavity.
8. An aerosol-generating article according to claim 7, wherein the outer surface of the second portion is provided with one or more rows of groups of perforations, the groups of perforations of each row comprising a plurality of the perforations.
9. An aerosol-generating article according to claim 7, wherein the number of perforations is N, wherein 1N 10.
10. An aerosol-generating article according to claim 9, wherein 2N is 8.
11. An aerosol-generating article according to any of claims 1 to 10, wherein the perforations have an equivalent diameter D, wherein 0.1mm +.d +.0.5 mm.
12. An aerosol-generating article according to claim 11, wherein 0.1mm +.d +.0.4 mm.
13. An aerosol-generating article according to any of claims 1 to 12, wherein the first cavity is a constant cross-section and the second cavity is a constant cross-section.
14. An aerosol-generating article according to claim 13, wherein the first cavity has an equivalent diameter D1 and the second cavity has an equivalent diameter D2, 1-D2/D1-3.
15. An aerosol-generating article according to any of claims 1 to 14, wherein the equivalent diameter of the first cavity is from 2mm to 4mm.
16. An aerosol-generating article according to any of claims 1 to 15, wherein the equivalent diameter of the second cavity is from 4mm to 6mm.
17. An aerosol-generating article according to any of claims 1 to 16, wherein the first portion and the second portion are both filter rods.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210148073.XA CN116649614A (en) | 2022-02-17 | 2022-02-17 | Aerosol-generating article |
| EP23156941.9A EP4230062A1 (en) | 2022-02-17 | 2023-02-15 | Aerosol-generating product |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210148073.XA CN116649614A (en) | 2022-02-17 | 2022-02-17 | Aerosol-generating article |
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| CN116649614A true CN116649614A (en) | 2023-08-29 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210148073.XA Pending CN116649614A (en) | 2022-02-17 | 2022-02-17 | Aerosol-generating article |
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| EP (1) | EP4230062A1 (en) |
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Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN204224923U (en) | 2014-11-05 | 2015-03-25 | 中国烟草总公司郑州烟草研究院 | Be applicable to the composite cigarette paper of non-combustion-type tobacco goods |
| CN104452479B (en) | 2014-11-05 | 2016-08-31 | 中国烟草总公司郑州烟草研究院 | A kind of composite cigarette paper with aluminium foil layer and application process thereof |
| CN113163850A (en) * | 2018-12-20 | 2021-07-23 | 菲利普莫里斯生产公司 | Aerosol-generating article with ventilation cavity |
| BR112021022389A2 (en) * | 2019-06-10 | 2022-02-15 | Philip Morris Products Sa | Stable housing for aerosol generating article |
| WO2021110596A1 (en) * | 2019-12-03 | 2021-06-10 | Philip Morris Products S.A. | Aerosol-generating article filter having novel filtration material |
| GB202009165D0 (en) * | 2020-06-16 | 2020-07-29 | Nicoventures Trading Ltd | Article for use in a non-combustile aerosol provision system |
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| EP4230062A1 (en) | 2023-08-23 |
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