TW202023409A - Smoking substitute consumable - Google Patents

Abstract

The present disclosure relates to an aerosol-forming article comprising an aerosol-forming substrate and a hollow bore filter element. The article comprises at least one radial air flow path into the hollow bore filter element.

Description

Smoking alternative supplies

The present disclosure is related to consumables used in smoking replacement systems, and in detail (but not exclusively) is related to heat not burn (HNB) consumables.

It is generally believed that smoking grass exposes smokers to potentially harmful substances. It is generally believed that a large amount of potentially harmful substances is generated by the heat caused by the combustion and/or ignition of tobacco components burned in tobacco and tobacco smoke itself.

Conventional flammable smoking products (such as cigarettes) generally include cylindrical tobacco rods and usually also include cylindrical filters. The cylindrical tobacco rods include shredded tobacco surrounded by wrapping paper. The filter is in shape with the wrapped tobacco rod. Aligned axially in abutting relationship. Filters generally include filter material enclosed by a plug sleeve. The wrapped tobacco rod and the filter are joined together by a wrapped tipping paper tape that encloses the entire length of the filter and the adjacent part of the wrapped tobacco rod. This conventional cigarette is used by lighting the end opposite to the filter and burning the tobacco rod. Smokers receive mainstream smoke into their mouths by smoking at the mouth end or filter end of the cigarette.

It is known that the ignition of organic materials (such as tobacco) produces tar and other potentially harmful by-products. Various smoking alternative systems (or "alternative smoking systems") have been proposed to avoid smoking grass.

Such smoking replacement systems can form part of nicotine replacement therapy, which is aimed at people who want to stop smoking and overcome their dependence on nicotine.

Smoking replacement systems include electronic systems that allow users to simulate smoking by generating smoke (also called "vapor"), which is drawn into the lungs through the mouth (inhalation) and then exhaled. Inhaled smoke generally contains nicotine and/or flavors, which do not have or have less odor and health risks associated with traditional smoking.

Generally speaking, the smoking substitution system aims to provide alternatives to smoking rituals, while at the same time providing similar experiences to users and providing satisfaction to those who have experience in traditional smoking and flammable tobacco products. Some smoking replacement systems use smoking replacement products that are designed to resemble traditional cigarettes and are in the form of a cylinder with a mouthpiece at one end.

In the past few years, the popularization and use of smoking alternative systems have rapidly emerged. Although originally sold as an aid to habitual smokers who wish to quit smoking, consumers increasingly regard the smoking alternative system as a desirable lifestyle accessory.

There are many different types of smoking replacement systems, each using a different method of smoking replacement.

One method used for smoking alternative systems is the so-called "heat not burn" ("HNB") method, in which tobacco (rather than "e-liquid") is heated or warmed to release vapor. The tobacco can be tobacco leaves or reconstituted tobacco. The vapor may contain nicotine and/or flavoring agents. In the HNB method, the intention is that the tobacco is heated but not burned, that is, the tobacco does not experience ignition.

A typical HNB smoking replacement system can include equipment and consumables. The consumable may include tobacco material. The equipment and consumables can be configured to be physically coupled together. In use, the heating member of the device can be used to impart heat to the tobacco material, wherein the air flow through the tobacco material causes the moisture in the tobacco material to be released as vapor. The vapor may also be formed by a carrier in the tobacco material and additional volatile compounds released from the tobacco (the carrier may, for example, include propylene glycol and/or vegetable glycerin). The released vapor can be entrained in the air stream drawn through the tobacco.

As the vapor passes through the consumable (entrained in the air stream) from the inlet to the mouthpiece (outlet), the vapor cools and condenses to form smoke for inhalation by the user. Smoke will usually contain volatile compounds.

In the HNB smoking replacement system, it is believed that heating rather than burning tobacco material results in fewer or smaller amounts of the more harmful compounds that are usually produced during smoking. Therefore, the HNB method can reduce the odor and/or health risks that may be caused by the combustion, ignition, and pyrolysis deterioration of tobacco.

There is a need to improve the design of HNB consumables to enhance the user experience and improve the function of the HNB smoking replacement system.

This disclosure is designed in view of the above considerations.

In the broadest sense, the present disclosure is related to an aerosol-forming article (for example, a smoking substitute article, such as a HNB consumable) that has an air flow path into the consumable upstream of the terminal filter member.

According to a first aspect, an aerosol-forming product (such as a smoking substitute product, such as HNB consumables) is provided. The aerosol-forming product includes: an aerosol-forming substrate and a hollow cavity filter member, wherein the product includes filtering into the hollow cavity At least one radial air flow path of the component.

By providing at least one radial air flow path into the hollow cavity filter member, air can be drawn into the aerosol-forming substrate when the user inhales, and this air can help cool and mix the vapor. The cross-sectional area of the at least one air flow path and/or the number of radial air flow paths can be customized to customize the suction resistance (RTD) of the product/consumable.

The optional features will now be listed. These features are applicable individually or in any combination with any aspect.

The aerosol-forming article is preferably a heat-not-burn (HNB) consumable.

In some embodiments, there are a plurality of radial air flow paths, and the plurality of radial air flow paths may be circumferentially arranged around the hollow cavity filter member. There may be a plurality of radial flow path rows spaced apart axially and extending circumferentially.

The radial air flow path may be provided in the terminal hollow cavity filter member and/or in the upstream hollow cavity filter member, the terminal hollow cavity filter member is located at the downstream axial end of the article/consumable, the upstream hollow cavity filter member A cavity filter member is provided upstream of the downstream axial end of the article/consumable and downstream of the aerosol-forming substrate (for example, adjacent to the downstream axial end).

As used herein, the terms "upstream" and "downstream" are intended to refer to the direction of vapor/mist flow, that is, the downstream end of the product/consumable is the mouth end or the end of the smoke leaving the product/consumable for inhalation by the user The direction of flow in the case of an exit. The upstream end of the product/consumable is the opposite end of the downstream end. The axial direction of the product/consumable is aligned with the flow direction of the vapor/smoke, that is, it extends between the upstream end and the downstream end of the product/consumable. The radial air flow path extends substantially perpendicular to the axial direction/flow direction of the vapor/smoke.

If the radial air flow path is provided in the terminal hollow cavity filter member, the product/consumable may further include an upstream filter member, which may include at least one additional radial air flow path (as described above) A hollow cavity filter member, a hollow cavity filter member without a radial flow path, or a solid filter member.

If the radial air flow path is provided in the upstream hollow cavity filter member (for example, adjacent to the downstream axial end of the aerosol-forming substrate), the product/consumable may further include a terminal filter member, which may include Another hollow cavity filter member with at least one radial air flow path (as described above), a hollow cavity filter member without a radial flow path, or a solid filter member.

In a preferred embodiment, the product/consumable includes an upstream hollow cavity filter member and a terminal hollow cavity filter member, wherein one or both of the hollow cavity filter members include at least one radial flow path (such as a plurality of Radial flow path).

In some embodiments, the product/consumable may further include a spacer member or a smoke cooling member, the spacer member or the smoke cooling member is located upstream of the terminal filter member and axially adjacent to the terminal filter member. The spacer/smoke cooling member may be interposed between the upstream filter member and the terminal filter member, for example between the upstream hollow cavity filter member and the terminal hollow cavity filter member.

The aerosol-forming substrate may be surrounded by a wrapping layer (such as a paper wrapping layer). The wrapping layer may cover the inner foil layer, or may include a paper/foil laminate structure (where the foil is the innermost).

The spacer/smoke cooling member may be at least partially (eg completely) surrounded by a (paper) wrapper. The upstream filter element (for example the upstream hollow cavity filter element) may be at least partially (for example completely) surrounded by a (paper) wrapper.

The radial air flow path may be provided by one or more vent holes provided in the wrapper surrounding the upstream hollow cavity filter member. There may be a plurality of ventilation holes circumferentially arranged around the upstream hollow cavity filter member, for example, a plurality of axially spaced and circumferentially extending ventilation hole rows.

The terminal filter member can be joined to the upstream member (such as the upstream filter member and/or the spacer/smoke cooling member) forming the article/consumable by the surrounding tipping layer (such as the tipping paper layer). The tipping paper may have an axial length longer than the axial length of the terminal filter member, so that the tipping paper completely encloses the terminal filter member plus any adjacent upstream members (such as adjacent spacer members or smoke cooling members). Wrap layer.

The radial air flow path may be provided by one or more ventilation holes provided in the tipping layer surrounding the terminal hollow cavity filter member. There may be a plurality of ventilation holes circumferentially arranged around the terminal hollow cavity filter member, for example, a plurality of ventilation hole rows spaced apart axially and extending circumferentially.

The radial air flow path may be provided by one or more radial cavities provided in the upstream hollow cavity filter member and/or the terminal hollow cavity filter member. There may be a plurality of radial cavities circumferentially arranged around the upstream hollow cavity filter member and/or the terminal hollow cavity filter member, for example, a plurality of axially spaced, circumferentially extending radial cavity rows.

The radial cavities may extend through the terminal filter member/upstream filter member and engage the axial cavities of the terminal filter member/upstream filter member.

The radial cavities in the upstream hollow filter member may be aligned with or overlap the vent holes in the wrapper.

The radial cavities in the terminal hollow filter member may be aligned with or overlap the vent holes in the tipping layer.

The or each filter member is formed of a smoke-permeable material. The final filter member and/or the upstream filter member may include cellulose acetate or polypropylene fiber bundles. The terminal filtering component and/or the upstream filtering component may include activated carbon. The final filter member and/or the upstream filter member may include paper. The terminal filter element and/or the upstream filter element may be respectively bound with a corresponding plug sleeve (such as a paper plug sleeve).

The radial air flow path may be provided by one or more vent holes provided in the corresponding plug sleeve, which surrounds the upstream hollow cavity filter member and/or the terminal hollow cavity filter member. There may be a plurality of ventilation holes in the plug sleeve circumferentially arranged around the upstream hollow cavity filter member and/or the terminal hollow cavity filter member, for example, a plurality of axially spaced and circumferentially extending vent rows.

The radial cavities in the upstream hollow filter member may be aligned with or overlap the vent holes in the plug sleeve of the upstream filter member.

The radial cavities in the terminal hollow filter member may be aligned with or overlap the vent holes in the plug sleeve of the downstream filter member.

The porosity of the upstream filter member may be greater than the porosity of the terminal filter member.

The terminal filter member and/or the upstream filter member may each have a substantially cylindrical shape, where the diameter substantially matches the diameter of the aerosol-forming substrate (with or without its associated wrapper). The axial length of the or each filter member may be less than 20 mm, such as between 8 and 15 mm, such as between 9 and 13 mm, such as between 10 and 12 mm.

The hollow cavity terminal filter member may have a cavity diameter between 1 and 5 mm (for example, between 2 and 4 mm or between 2 and 3 mm). The diameter of the axial cavity in the upstream hollow cavity filter member may be larger than the diameter of the axial cavity in the terminal filter member.

The smoke cooling member is adapted to cool the smoke generated by the aerosol-forming substrate (generated by heat exchange) before being inhaled by the user.

The smoke cooling member can be formed of plastic materials selected from the group consisting of the following items: polylactic acid (PLA), polyvinyl chloride (PVC), polyethylene (PE), polyethylene terephthalate (PET) ). The smoke cooling member may be formed of rolled/aggregated material sheets to form a structure with a high surface area and a plurality of longitudinal channels to maximize the heat exchange and cooling of the smoke.

The spacer member defines a space or cavity or chamber between the aerosol-forming substrate and the downstream end of the article/consumable (for example, between the upstream filter member and the terminal filter member). Spacers are used to allow cooling and mixing of smoke. The spacer member may have a tubular wall (for example formed of cardboard).

The spacer member may have an outer diameter between 5 and 10 mm (for example between 6 and 9 mm or between 6 and 8 mm, for example about 7 mm). It may have an axial length between 10 and 15 mm (for example between 12 and 14 mm or 13 and 14 mm, for example about 14 mm).

The aerosol-forming substrate can be heated to release at least one volatile compound that can form aerosol. The aerosol-forming substrate can be located at the upstream end of the article/consumable.

In order to generate smoke, the aerosol-forming substrate includes at least one volatile compound, which is intended to be vaporized/atomized and can provide leisure and/or medical effects to the user when inhaled. Suitable chemical and/or physiologically active volatile compounds include the group consisting of nicotine, cocaine, caffeine, opiates and opioids, norpseudoephedrine and cathinone, and carfalactone , Myristyl ether, β-carboline alkaloid, salvinorin A (salvinorin A), and any combination of the foregoing items, functional equivalents, and/or synthetic substitutes.

The aerosol-forming substrate may include plant material. The plant material may include at least one plant material selected from the list including the following items: Amaranthus dubius , Arctostaphylos uva-ursi (bearberry), Argemone mexicana , Amica , Artemisia vulgaris , Yellow Tees, Galea zacatechichi , Canavalia maritima (garan beans) , Cecropia mexicana (Guamura), Cestrum noctumum, Cynoglossum virginianum ( wild comfrey), Cytisus scoparius, Damiana, Entada rheedii, Eschscholzia califomica ( Hualing grass), Fittonia albivenis, Hippobroma longiflora, Humulus japonica ( Japanese hops), Humulus lupulus (hops), Lactuca virosa (poison lettuce), Laggera alata, Leonotis leonurus, Leonurus cardiaca ( motherwort), Leonurus sibiricus (honey grass (Honeyweed)), Lobelia cardinalis, Lobelia inflata ( Indian tobacco), Lobelia siphilitica, Nepeta cataria (Nepeta), Nicotiana species (tobacco), Nymphaea alba (white lily), Nymphaea caerulea (blue lily), poppy, Passiflora incamata ( passiflora ) Pedicularis densiflora (Indian warrior) Pedicularis groenlandica (elephant head), Salvia divinorum , Salvia dorrii (tobacco sage), Salvia species (sage), Scutellaria galericulata , Scutellaria lateriflora , Scutellaria nana , Scutellaria species ( coupling grass), Sida acuta (wire grass), Sida rhomb ifolia , Silene capensis , Syzygium aromaticum (lilac), Tagetes lucida (Mexican tarragon), Tarchonanthus camphoratus , Tumera diffusa (Mexican beet), Verbascum (Mulbascum), Zamia latifolia (Maconha Brava), and the aforementioned items Any combination, functional equivalent, and/or synthetic substitute.

Preferably, the plant material is tobacco. Any type of tobacco can be used. This includes but is not limited to flue-cured tobacco, burley tobacco, Maryland tobacco, dark-cured tobacco, oriental tobacco, dark-cured tobacco, perique tobacco, and yellow flower tobacco. This also includes blends of the aforementioned tobaccos.

Any suitable part of the tobacco plant can be used. This includes leaves, stems, roots, bark, seeds and flowers.

Tobacco may include one or more of the following items: leaf tobacco, stem tobacco, tobacco powder, tobacco dust, tobacco derivatives, expanded tobacco, homogenized tobacco, shredded tobacco, extruded tobacco, shredded tobacco, and/or reconstituted Tobacco (such as pulp restructuring or paper restructuring).

The aerosol-forming substrate may include agglomerated pieces of homogeneous (e.g., paper/pulp reconstituted) tobacco or agglomerated fragments/strips formed from such sheets.

In some embodiments, the sheet used to form the aerosol-forming substrate has a grammage per square meter greater than or equal to 100 g/m ² , such as greater than or equal to 110 g/m ² , such as greater than or equal to 120 g/m ² .

The sheet may have a grammage per square meter less than or equal to 300 g/m ² , for example, less than or equal to 250 g/m ² or less than or equal to 200 g/m ² .

The sheet may have a grammage per square meter between 120 and 190 g/m ² .

The aerosol-forming substrate may include at least 50 weight percent plant material, such as at least 60 weight percent plant material, for example about 65 weight percent plant material. The aerosol-forming substrate may include 80 weight percent or less plant material, for example 75 or 70 weight percent or less plant material.

The aerosol-forming substrate may include one or more additives selected from the group consisting of humectants, flavors, fillers, aqueous/non-aqueous solvents, and binders.

Humectants are provided as vapor generators-the generated vapor helps to carry volatile active compounds and increase the visible vapor. Suitable humectants include polyols (such as propylene glycol (PG), triethylene glycol, 1,2-butanediol, and vegetable glycerin (VG)) and their esters (such as glycerol monoacetate, glycerol diacetate, or Triacetin). They can be present in the aerosol-forming substrate in an amount between 1 and 50 weight percent.

The humectant content of the aerosol-forming substrate may have a lower limit of at least 1 weight percent of the plant material, such as at least 2 weight percent, such as at least 5 weight percent, such as at least 10 weight percent, such as at least 20 weight percent, such as at least 30 weight percent, Or, for example, at least 40 weight percent.

The humectant content of the aerosol-forming substrate may have an upper limit of up to 50 weight percent of the plant material, such as up to 40 weight percent, such as up to 30 weight percent, or for example up to 20 weight percent.

Preferably, the content of the humectant is 1 to 40 weight percent of the aerosol-forming substrate, for example, 1 to 20 weight percent.

Suitable adhesives are known in the art and can be used to bond the aerosol-forming substrate-forming ingredients together. Binders may include starch and/or cellulose binders (such as methyl cellulose, ethyl cellulose, hydroxypropyl cellulose, hydroxyethyl cellulose, and methyl cellulose), gums (such as xanthan gum, Guar gum, acacia gum, and/or carob gum), organic acids, and their salts (such as alginic acid/sodium alginate, agar, and pectin).

Preferably, the binder content is 5 to 10 weight percent of the aerosol-forming substrate, for example about 6 to 8 weight percent.

Suitable fillers are known in the art and can be used to strengthen the aerosol forming substrate. Fillers may include fibrous (non-tobacco) fillers, such as cellulose fibers, lignocellulosic fibers (such as wood fibers), jute fibers, and combinations of the foregoing.

Preferably, the filler content is 5 to 10 weight percent of the aerosol-forming substrate, for example about 6 to 9 weight percent.

The aerosol-forming substrate may include aqueous and/or non-aqueous solvents. In some embodiments, the aerosol-forming substrate has a water content between 5 and 10 weight percent (eg, between 6-9 weight percent, such as between 7-9 weight percent).

The seasoning can be provided in solid or liquid form. It may include menthol, licorice, chocolate, fruit flavors (including, for example, citrus, cherry, etc.), vanilla, spices (such as ginger, cinnamon), and tobacco flavors. The flavoring material can be uniformly dispersed throughout the aerosol-forming substrate, or can be provided in isolated locations and/or in varying concentrations throughout the aerosol-forming substrate.

The aerosol-forming substrate can be formed in a substantially cylindrical shape so that the product/consumable is similar to a conventional cigarette. It may have a diameter between 5 and 10 mm (for example between 6 and 9 mm or between 6 and 8 mm, for example about 7 mm). It may have an axial length between 10 and 15 mm (for example between 11 and 14 mm, for example about 12 or 13 mm).

In a second aspect, a filter member for aerosol forming products (such as smoking substitute products, such as HNB consumables) is provided. The filter member includes an axial cavity and at least one radial cavity.

There may be a plurality of radial cavities circumferentially arranged around the hollow cavity filter member, for example, a plurality of radial cavities spaced apart axially and extending circumferentially.

The radial cavity may extend through the filter member and engage the axial cavity of the filter member.

The filter member is formed of a smoke-permeable material. The filter member may include cellulose acetate or polypropylene fiber bundles. The filter member may include activated carbon. The filter member may include paper.

The filter member can be bound with a plug sleeve (for example, a paper plug sleeve).

The plug sleeve may include one or more ventilation holes. There may be a plurality of ventilation holes circumferentially arranged around the filter member in the plug sleeve, for example, a plurality of ventilation hole rows spaced apart axially and extending circumferentially.

The radial cavities in the filter member may be aligned with or overlap the vent holes in the plug sleeve.

The filter members may each have a substantially cylindrical shape. The axial length of the filter member may be less than 20 mm, such as between 8 and 15 mm, such as between 9 and 13 mm, such as between 10 and 12 mm.

The filter member may have a cavity diameter between 1 and 5 mm, for example between 2 and 4 mm or between 2 and 3 mm.

In a third aspect, an aerosol-forming product (for example, a smoking substitute product, such as a HNB consumable) is provided, and the aerosol-forming product includes at least one filter member as described in the second aspect.

In a fourth aspect, a smoking substitution system is provided, which includes the aerosol-forming article as described in the first aspect or the third aspect, and a device including a heating member.

The device may be an HNB device, that is, a device that is adapted to heat but not cause the smoke-forming substrate to ignite.

The device may include a main body for housing the heating member. The heating member may include an elongated (for example, rod-shaped, tube-shaped, or blade-shaped) heating member. The heating member may protrude into the cavity in the main body or surround the cavity for receiving the above-mentioned products/consumables.

The device (such as the main body) may further include a power source (such as a (rechargeable) battery) for supplying power to the heating member. It may further include a control unit to control the power supply to the heating member.

In the fifth aspect, a method of using the smoking substitution system as described in the fourth aspect is provided, and the method includes the following steps:

Insert the product/consumable into the device; and

The heating member is used to heat the product/consumable.

In some embodiments, the method includes the following steps: inserting the product/consumable into a cavity in the main body, and using a heating member to penetrate the product/consumable when the product/consumable is inserted. For example, the heating member can penetrate the smoke forming substrate in the article/consumable.

The skilled person will understand that the features or parameters described with respect to any one of the above aspects can be applied to any other aspects except where mutually exclusive. And, except where mutually exclusive, any feature or parameter described herein can be applied to any aspect and/or combined with any other feature or parameter described herein.

As shown in FIG. 1, the HNB consumable 1 includes an aerosol-forming substrate 2 at the upstream end of the consumable 1.

The aerosol-forming substrate includes a reconstituted tobacco that includes nicotine as a volatile compound.

The aerosol-forming substrate 2 includes 65 weight percent tobacco, which is provided in the form of aggregate fragments produced from a piece of pulp/paper reconstituted tobacco. Tobacco is added with 20 weight percent humectant (such as propylene glycol (PG) or vegetable glycerin (VG)), and has a moisture content between 7-9 weight percent. The aerosol-forming substrate further includes cellulose pulp filler and guar adhesive.

The smoke forming base material 2 is formed in a substantially cylindrical shape, so that the consumable material is similar to a conventional cigarette. It has a diameter of about 7 mm and an axial length of about 12 mm.

The aerosol-forming substrate 2 is surrounded by the paper wrapping layer 3.

The consumable 1 includes an upstream filter member 4 and a downstream (terminal) filter member 5. The two filter members 4, 5 are separated by a cardboard tube spacer 6. The two filter members 4, 5 are formed of cellulose acetate fiber bundles and are wrapped with corresponding paper plug layers (not shown).

Both filter members have a substantially cylindrical shape. The diameter of the upstream filter 4 matches the diameter of the aerosol-forming substrate 2. The diameter of the terminal filter member 5 is slightly larger and matches the combined diameter of the aerosol-forming substrate 2 and the wrapping layer 3. The axial length of the upstream filter member is slightly shorter than that of the terminal filter member, and is 10 mm in axial length compared with the 12 mm of the terminal filter member.

The cardboard tube spacer is longer than each of the two filter members and has an axial length of approximately 14 mm.

Both filter members 4 and 5 are hollow cavity filter members with hollow, longitudinally extending axial cavities. The diameter of the axial cavity in the upstream filter 4 is slightly larger than the diameter of the axial cavity in the terminal filter member 5 and has a diameter of 3 mm compared to 2 mm of the terminal filter member.

The cardboard tube spacer 6 and the upstream filter member 4 are bound by the wrapping layer 3.

The terminal filter member 5 is joined to the upstream member forming the consumable by the paper tipping layer 7 that is bound. The tipping layer 7 surrounds the terminal filter member 5 and has an axial length of about 20 mm so that it covers a part of the cardboard tube spacer 6.

A plurality of radial air flow paths are provided by the first circumferentially extending rows of ventilation holes 13a, 13b and the axially spaced second circumferentially extending rows of ventilation holes 14a, 14b in the tipping layer 7, The rows of ventilation holes are circumferentially arranged around the terminal filter member 5.

Figure 2 shows a second embodiment of a consumable 1', which is the same as the first embodiment, except for the following conditions: the upstream filter member 4'is a solid filter member and includes crushed balls 8 that contain seasoning. In addition, the ventilation holes 13a, 13b, 14a, 14b extend through the tipping layer 7 and are aligned with the radial cavities 15a, 15b, 16a, 16b, which extend through the terminal filter member 5 into the terminal filter member 5. The hollow axial cavity. Of course, the upstream filter member can be replaced with a hollow cavity filter member as shown in FIG. 1.

Figure 3 shows a third embodiment of a consumable 1", which is the same as the first embodiment, except for the following conditions: the wrapping layer 3 does not completely enclose the cardboard tube spacer 6, so that the tipping layer 7 and the wrapping layer There is an annular gap 9 between the cardboard tube spacers 6 downstream of the end of 3. In addition, the first rows of ventilation holes 13a, 13b extend through the wrapping layer 3 and enter the hollow cavity of the terminal filter member 4 through the upstream filter member 4, while the second rows of ventilation holes 14a, 14b only extend through the wrapping layer 3.

FIG. 4 shows the first embodiment inserted into the HNB device 10, which includes a rod-shaped heating member 20. The heating member 20 protrudes into the cavity 11 in the main body 12 of the device.

The consumable 1 is inserted into the cavity 11 of the main body 12 of the device 10 so that the heating rod 20 penetrates the aerosol-forming substrate 2. The heating of the reconstituted tobacco in the aerosol-forming substrate 2 is achieved by supplying power to the heating member (for example, using a rechargeable battery (not shown)). As the tobacco is heated, the moisture and volatile compounds (for example, nicotine) in the tobacco and the humectant are released as vapor and are entrained in the air flow generated by the user's inhalation at the terminal filter member 5.

As the vapor cools in the upstream filter member 4 and the cardboard tube spacer 6, it condenses to form a smoke containing volatile compounds for inhalation by the user.

Inhalation by the user also draws in air along the radial flow path through the ventilation holes 13a, 13b, 14a, 14b. This air helps to mix and cool the steam.

The features disclosed in the foregoing description, or in the following claims, or in the drawings can be used alone or in any combination of such features to implement the present invention in various forms, as appropriate, these features They are expressed in their specific forms or in terms of means for performing the disclosed functions, or methods or procedures for obtaining the disclosed results.

Although the present invention has been described in conjunction with the above exemplary embodiments, when this disclosure is given, those skilled in the art will understand many equivalent variations and modifications. Therefore, the exemplary embodiments of the invention set forth above are considered to be illustrative and non-limiting. Various changes to the described embodiments can be made without departing from the scope of the present invention.

For the avoidance of any doubt, any theoretical explanation provided in this article is provided for the purpose of improving readers' understanding. The inventor does not wish to be bound by any of these theoretical explanations.

Any section headings used in this article are for organizational purposes only and are not construed as limiting the subject matter described.

Throughout this specification (including the following claims), unless the context requires otherwise, the terms "have", "include", and "include" and their variants will be understood to imply inclusion of the stated integers or steps , Or groups of integers or steps, but do not exclude any other integers or steps, or groups of integers or steps.

It must be noted that, as used in this manual and the accompanying claims, the singular forms "one", "one", and "the" include plural referents, unless the context clearly indicates otherwise. A range can be expressed herein as from "about" one specific value and/or to "about" another specific value. When expressing such a range, another embodiment includes from the one specific value and/or to the other specific value. Similarly, when a value is expressed as an approximation by using the antecedent "about", it will be understood that this particular value forms another embodiment. The term "about" with regard to numerical values is optional and means, for example, +/-10%.

The terms "preferably" and "preferably" are used herein to refer to embodiments of the present invention that can provide certain benefits in some cases. However, it is to be understood that other embodiments may also be preferred under the same or different conditions. Therefore, the description of one or more preferred embodiments does not imply or imply that other embodiments are useless, and are not intended to exclude other embodiments from the scope of the present disclosure or the scope of the claims.

1: HNB consumables 2: Smoke forming substrate 3: wrapping layer 4: Upstream filter component 5: Downstream (terminal) filter components 6: Cardboard tube spacer 7: Tipping layer 8: crush the ball 9: Annular gap 10: HNB equipment 11: Cavity 12: main body 20: heating rod 1': Consumables 1'': Consumables 13a: vent 13b: Ventilation hole 14a: Ventilation hole 14b: Ventilation hole 15a: Radial cavity 15b: Radial cavity 16a: Radial cavity 16b: Radial cavity 4': Upstream filter element

The embodiments that illustrate the principle of the present invention will now be discussed in more detail with reference to the accompanying drawings, so that the present invention can be understood and other aspects and features of the present invention can be understood. In the accompanying drawings:

Figure 1 shows a first embodiment of HNB consumables;

Figure 2 shows a second embodiment of HNB consumables;

Figure 3 shows a third embodiment of the HNB consumable; and

Fig. 4 shows a first embodiment in a device forming an HNB system.

Domestic hosting information (please note in the order of hosting organization, date and number) no

Foreign hosting information (please note in the order of hosting country, institution, date and number) no

1: HNB consumables

2: Smoke forming substrate

3: wrapping layer

4: Upstream filter component

5: Downstream (terminal) filter components

6: Cardboard tube spacer

7: Tipping layer

13a: vent

13b: Ventilation hole

14a: Ventilation hole

14b: Ventilation hole

Claims (17)

An aerosol-forming product includes an aerosol-forming substrate and a hollow cavity filter member, wherein the product includes at least one radial air flow path into the hollow cavity filter member. The article according to claim 1, wherein the article is a heat-not-burn (HNB) consumable. The article according to claim 2, comprising a plurality of radial air flow paths circumferentially arranged around the hollow cavity filter member. The article according to claim 3, comprising a plurality of radial flow path rows spaced apart in the axial direction and extending circumferentially. The article according to any one of the preceding claims, wherein the radial air flow path or the radial air flow paths are provided in a terminal hollow cavity filter member and/or an upstream hollow cavity filter member The terminal hollow cavity filter member is located at the downstream axial end of the product/consumable, and the upstream hollow cavity filter member is provided upstream of the downstream axial end of the product/consumable and the aerosol-forming substrate Downstream. The article according to claim 5, wherein the radial air flow path or the radial air flow paths are provided in the terminal hollow cavity filter member, and the article further includes an upstream hollow cavity filter member. The article according to claim 6, wherein the terminal filter member is at least partially enclosed by a tipping layer, and the radial air flow path or the radial air flow paths are provided by surrounding the terminal hollow hole One or more ventilation holes in the tipping layer of the cavity filter member are provided. The article of claim 6 or 7, wherein the radial air flow path or the radial air flow paths are formed by one or more radial cavities extending into the terminal hollow cavity filter member which provided. The article according to claim 5, wherein the radial air flow path or the radial air flow paths are provided in the upstream hollow cavity filter member, and the article further includes a terminal hollow cavity filter member. The article of claim 9, wherein the upstream filter member is at least partially enclosed by a wrapper, and the radial air flow path or the radial air flow paths are provided by surrounding the upstream hollow cavity One or more ventilation holes in the wrapping layer of the filter member are provided. The article of claim 9 or 10, wherein the radial air flow path or the radial air flow paths are formed by one or more radial cavities extending into the upstream hollow cavity filter member which provided. The product according to any one of claims 6 to 11, further comprising a spacer member or a smoke cooling member between the upstream filter member and the terminal filter member. A system includes the smoking substitute article according to any one of the foregoing claims, and a device including a heating member. The system according to claim 13, wherein the device includes a main body for accommodating the heating member, and the heating member includes an elongated heating member. A method of using the system according to claim 13 or 14, the method including the following steps: Insert the product into the device; and The heating member is used to heat the product. The method according to claim 15, comprising the following steps: inserting the article into a cavity in a main body of the device, and penetrating the article with the heating member when the article is inserted. A filter component used for an aerosol-forming product. The filter component includes an axial cavity and at least one radial cavity.

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