Aerosol-generating substrates and articles containing the substrates

Abstract

An aerosol-generating substrate (12) for a non-combustion aerosol-generating device, comprising a first aerosol-generating portion (28) and at least one second aerosol-generating portion (20) positioned adjacent to the first aerosol-generating portion (28), wherein the first aerosol-generating portion (28) and the second aerosol-generating portion (20) comprise an aerosol-generating agent and a first flavorant and a second flavorant, respectively, which are different from each other, and at least one of the first aerosol-generating portion (28) and the second aerosol-generating portion (20) comprises an aerosol-generating agent and a first flavorant and a second flavorant, which are different from each other, is a foam containing a non-tobacco flavorant, the foam configured to generate an aerosol upon heating, the foam not melting under aerosol-generating conditions at a temperature included within a heating temperature range of the aerosol-generating device, the heating temperature range being 180°C to 350°C, and the foam comprising a foam-forming agent selected from the group consisting of agar, gellan gum, lecithin, polyglycerol fatty acid esters, glycerol fatty acid esters, sorbitan fatty acid esters, and / or mixtures thereof.

Description

[Technical field]

[0001] The present invention relates to aerosol-generating substrates and articles comprising substrates for non-combustion heated aerosol generating devices. [Background technology]

[0002] Aerosol generating devices such as vaporizers have become popular as an alternative to traditional smoking devices. In such devices, the aerosol is heated, for example, using an electronic heater. In this regard, it is desirable to enable the user to experience a strong and / or diverse flavor when inhaling the vapor.

[0003] prior art Aerosol-generating substrates provided as mousses are disclosed in WO 2018 / 122375 A1 and WO 2020 / 002607 A1. WO 2020 / 254582 A1, WO 2021 / 083844 A1, WO 2021 / 094453 A1, and WO 2021 / 094365 A1 relate to such mousses and hot-compressed tobacco substrates, respectively. WO 2020 / 127261 A1 teaches extrusion to form a tobacco mousse, and WO 2021 / 105449 A1 relates to a consumable for an aerosol-generating device comprising at least two aerosol-generating materials of different composition, each comprising an amorphous solid formed with a gelling agent. Similarly, WO 2021 / 128828 A1 and WO 2021 / 053029 A1 relate to consumables comprising a gel that can be melted. Summary of the Invention [Problem to be solved by the invention]

[0004] Notwithstanding the above teachings, there remains a need to provide aerosol-generating substrates and articles that are improved with respect to flavor release, such as intensity and / or variety. [Means for solving the problem]

[0005] This is achieved by the subject matter of claim 1.

[0006] Thus, an aerosol-generating substrate for a non-combustion type aerosol generating device comprises a first aerosol-generating portion and at least one second aerosol-generating portion positioned adjacent to the first aerosol-generating portion, the first and second aerosol-generating portions comprising an aerosol generating agent and a first and second flavourant, respectively, which are different from each other, at least one of the first and second aerosol-generating portions being a foam containing a non-tobacco flavourant, the foam configured to generate an aerosol upon heating, the foam not melting under aerosol-generating conditions at a temperature comprised within a heating temperature range of the aerosol generating device, the heating temperature range being between 180°C and 350°C, and the foam comprising a foam-forming agent selected from the group consisting of agar, gellan gum, lecithin, polyglycerol fatty acid esters, glycerol fatty acid esters, sorbitan fatty acid esters, and / or mixtures thereof. In a contemplated example, both the first aerosol-generating portion and the second aerosol-generating portion comprise a first non-tobacco flavourant and a second non-tobacco flavourant, respectively.

[0007] Providing an aerosol-generating substrate in the form of a foam offers the important advantage of preventing leakage, since foams are significantly more stable than liquids and do not leak as easily as liquids can. In particular, this advantage can be achieved by providing a stable foam that is not meltable at temperatures included in the heating temperature range of the aerosol-generating device, such that the foam can withstand at least one value of the heating temperature range. Moreover, the amount of foam can be adjusted to correspond to the session time that the user is accustomed to, i.e., the session time of a normal cigarette. It has also been found that desirable ingredients of the aerosol, such as flavorants, can be easily provided in the foam.

[0008] By providing different flavors in at least two aerosol-generating parts, the overall flavor can be enhanced and / or diversified. In particular, the aerosol-generating parts, especially the foam, can be arranged to release a significant portion of the flavor during specific, preferably different or at least staggered, times, so that a dominant flavor can be experienced that changes over time. Moreover, the total release time of the flavor can be extended, and flavor consistency during vapor inhalation is achieved. Finally, by providing different flavors in different aerosol-generating parts, the flavors can be kept separate in the different aerosol-generating parts, and there is no need to mix the flavors, which may deteriorate the user's experience of the different flavors. In summary, the quality and intensity of the flavor can be maintained at a high level for a longer period of time than before.

[0009] Preferred embodiments are set forth in the further claims.

[0010] Regarding the heating temperature range of the aerosol generating device, this range can be, for example, 200-320° C., preferably 230-320° C. Within this range, it is possible to reliably generate an aerosol while at the same time avoiding melting of the foam. In particular, at these temperatures, the foam may burn and brown, but may not undergo the deformation that normally occurs when melting.

[0011] The aerosol-generating substrate may have tobacco material, particularly in homogenized tobacco material, but may also be free of tobacco material and / or contain non-tobacco flavourants. The tobacco material may generally contain a small amount of leaf, but differs from the tobacco material contained in a normal cigarette, as it contains reconstituted tobacco or processed tobacco mixtures, rather than leaf tobacco. In this context, the amount of nicotine may also vary, allowing the user to control the intake of nicotine. In this context, nicotine source means any substance capable of releasing nicotine when heated. Such a substance does not necessarily have to be tobacco, but nicotine can be extracted from tobacco and taken as a foam. In order to provide a reasonable nicotine level, it is preferred that the amount of nicotine on a dry basis of the aerosol-generating substrate is between 0.1 and 10% by weight, preferably between 0.1 and 4% by weight. The manufacture of the aerosol-generating substrate, which may be cylindrical and may be referred to as a plug, may be particularly efficient by providing the first aerosol-generating portion and at least one second aerosol-generating portion as a co-extrudate and / or concentrically.

[0012] As a result, in order to provide a stable foam that is particularly prone to leakage, at least one aerosol-generating portion preferably comprises a foam former and / or foam stabilizer.

[0013] Preferred foam-forming agents, hereinafter referred to simply as "gums", are selected from the group consisting of, but not limited to, agar, gellan gum, lecithin, polyglycerol fatty acid esters, glycerol fatty acid esters, sorbitan fatty acid esters, and / or mixtures thereof. The amount of foam-forming agent is preferably 1-15% by weight of the foam, more preferably 2-10% by weight of the foam, and most preferably 3-8% by weight.

[0014] A preferred foam stabilizer is selected from the group consisting of cellulose gums, hydroxyalkylated carbohydrates, derivatives thereof, and mixtures thereof, and / or comprises cellulose gums, in particular carboxymethylcellulose (CMC) or derivatives thereof (also referred to in the present application as "binders") and / or cellulose fibers. The derivatives of CMC may be their salts, preferably alkali metal salts such as sodium and / or potassium salts. The cellulose fibers as foam stabilizer are preferably present in an amount of 5% to 15% by weight of the foam. The amount of foam stabilizer is preferably 5 to 30% by weight of the foam, preferably 8 to 28% by weight. In a contemplated example, the foam stabilizer comprises cellulose fibers and carboxymethylcellulose in a ratio of about 1:1 in the foam. In another example, the foam stabilizer comprises only carboxymethylcellulose and does not comprise cellulose fibers in the foam.

[0015] In first trials, with respect to the aerosol forming agent, an amount of at least 40% by weight, preferably at least 50% by weight, and most preferably at least 60% by weight of at least one aerosol-generating moiety and propylene glycol, glycerin, or a combination thereof has been found to be beneficial.

[0016] Small amounts of water and / or acids and / or esters, such as diacetin, may be included in the foam. In a preferred embodiment, the foam may contain water in an amount of 0-15% by weight of the foam, such as 9-10% by weight.

[0017] The first aerosol-generating portion preferably comprises tobacco powder. More preferably, the first aerosol-generating portion is a processed tobacco mixture. The amount of tobacco powder is preferably at least 50% by weight of the first aerosol-generating portion. In one example, the first aerosol-generating portion is a tobacco foam. An advantage of tobacco foam is that it can be easily extruded or co-extruded with a second aerosol-generating portion that is also a foam or foam material.

[0018] Preferred (non-tobacco) flavouring foams are selected from the list of menthol, natural and / or artificial botanical flavours (e.g. peppermint, berry, fruit, root or nut), animal, enzymatic or microbial flavours, sweet-like, alcoholic or dessert-like flavours (e.g. chocolate, cookie dough, peanut butter, carrot cake, marshmallow, butter popcorn, Prosecco, red wine, rum, jelly beans, Guinness, bourbon, honey, toffee, praline, butterfinger, brown bread etc.) and combinations thereof. With regard to the amount of flavouring, it is currently preferred that it is between 0.2 and 18% by weight, preferably between 0.6 and 13% by weight.

[0019] For the preferred recipe, the non-tobacco aerosol generating portion is: - an aerosol former in an amount of 60-70% by weight, preferably about 63-68% by weight, - 5 to 10% by weight of water, preferably about 9% by weight of purified water, - 1-6% by weight of gum, preferably about 4.5% by weight of gum, and - Contains 8-20% by weight of binder, preferably about 18% by weight of binder.

[0020] Alternatively, the aerosol-generating portion comprises: - an aerosol former in an amount of 60-70% by weight, preferably about 63-68% by weight, - 5 to 10% by weight of water, preferably about 9% by weight of purified water, - 1-6% by weight of gum, preferably about 4.5% by weight of gum, - 8 to 20% by weight of a binder, preferably about 11% by weight of a binder, and - containing between 8 and 15% by weight of cellulose fibres, preferably about 12% by weight of cellulose fibres.

[0021] In those recipes above, the gum is more preferably gellan gum and / or the binder is preferably carboxymethylcellulose and its derivatives.

[0022] The addition of cellulose fibers is particularly advantageous in maintaining shape integrity during heating because although cellulose fibers are biopolymers, they do not "melt" and only undergo decomposition, meaning charring (formation of double bonds C-C) and degradation, at relatively high temperatures.

[0023] The first aerosol-generating portion or tobacco portion may include a homogenized tobacco material formed with a processed tobacco mixture. The mixture may include tobacco powder, an aerosol-forming agent (e.g., glycerin), a binder (e.g., guar gum), and optionally cellulose pulp. For example, the tobacco mixture may include 50% to 80% by weight tobacco powder, 8% to 15% by weight aerosol-forming agent, 1% to 10% by weight binder, and 0% to 10% by weight cellulose pulp.

[0024] As already mentioned, in order to extend the flavour release over time and at the same time maintain a constant intensity, the flavour release from the first aerosol-generating section and the at least one second aerosol-generating section is preferably adapted to be staggered in time. This matching is especially facilitated by a contiguous arrangement of the first aerosol-generating section and the second aerosol-generating section, in particular these sections being arranged in the transverse direction of the article and / or the airflow, for example as a continuous adjacent layer. In particular, a coaxial arrangement of the first aerosol-generating section and the second aerosol-generating section, such as by superimposed tubular layers, has been found to be particularly advantageous for the staggered release of flavour.

[0025] The aerosol-generating article described herein includes the substrate described above wrapped in a wrapper. The article may further include a mouthpiece downstream of the aerosol-generating substrate, which may also be housed in the wrapper. Furthermore, the mouthpiece may include a filter and a spacing and / or cooling element disposed between the aerosol-generating substrate and the filter. The wrapper may be made, for example, from cigarette paper and may or may not be metallized. In either case, the wrapper may be designed to avoid foam scorching, which may also be called e-mousse since it is the foam used in electronic cigarettes.

[0026] With regard to the filter provided in the mouthpiece, this filter can be adapted to provide a relatively low, in any case acceptable, pressure loss, so that the flavor intensity and nicotine yield remain optimal. Additionally, the presence of the spacing and / or cooling element first cools the generated aerosol, so that an uncomfortably hot aerosol is prevented from entering the user's mouth. Moreover, the spacing element can be used to give the article according to the invention a size that is compatible with well-established aerosol generating devices in which the article can be used. Due to the fact that the article described herein can be used with the present aerosol generating device, the user has the advantage that only a single device is needed and only one device has to be maintained.

[0027] If the spacing and / or cooling element is a hollow paper tube, this contributes to the compostability of the entire article. This also applies to the preferred measure of providing the article with a paper filter.

[0028] With regard to the length of the spacing and / or cooling element, it is currently preferred that this be between 10 and 25mm, preferably between 18 and 22mm.

[0029] The aerosol-generating substrate may have any suitable extension, but the articles described herein remain compact when the aerosol-generating substrate extends from the upstream end to the downstream end of the article, and the preferred overall length of the article is from 50 mm to 70 mm, more preferably from 55 mm to 65 mm, even more preferably from 58 mm to 62 mm, with the aerosol-generating substrate or plug preferably being from about 15 mm to 25 mm, and the filter preferably being from about 15 mm to 25 mm.

[0030] Regarding the shape of the aerosol-generating article, a cylinder or a flat plate is preferred as they are easy to manufacture.

[0031] Furthermore, at least two aerosol-generating portions may be provided, for example formed coaxially, and one or more hollow tubes may be provided within the aerosol-generating substrate. In this case, the two aerosol-generating portions may be provided as two overlapping layers of aerosol-generating material surrounding a central hollow tube. The hollow tube provides the advantage that heat flow through the hollow allows more flavor and nicotine to be extracted, as compared to heat flowing through a cylindrical rod, in which the foam or mousse is substantially a single semi-solid element. The effect of allowing more flavor and nicotine to be extracted from the foam is further enhanced by a plurality of longitudinal through-passages, through-channels or through-holes, which may also be called plugs, extending substantially through the entire substrate. This effect may also be achieved by providing the aerosol-generating substrate in the form of a plurality of individual pieces, such as beads or small elements, into which the foam or mousse has been chopped. These elements may have substantially the same or different shapes and / or sizes. For example, the elements may have a size of 1 or 2 millimeters.

[0032] The filter may be a paper filter or a filament tow filter. The paper filter may be a gathered sheet of wrapped paper. To provide a pleasant vaping experience, in particular without compromising the flavor intensity and nicotine release, a filter having a pressure drop of preferably less than 5 mm water column / mm, more preferably less than 3 mm water column / mm, most preferably less than 2.5 mm water column / mm is advantageous. The highest of these values ​​allows the use of acetate filters, while paper filters can achieve lower values. The pressure drop is measured under standard conditions as specified by Coresta Recommended Method No. 41 (2007) and Coresta Guide No. 4 (2019).

[0033] In this regard, 20 to 40 g / m 2 It has been found that a paper sheet of the paper filter having a basis weight of 10 ...

[0034] As is apparent from the above, the articles described herein are preferably used with an aerosol-generating system that includes an aerosol-generating device for inserting the article and heating the aerosol-generating substrate. The device typically includes a chamber for receiving at least the aerosol-generating substrate in a heater configured to heat the substrate in the chamber and generate an aerosol that passes through a filter from the substrate as air is drawn through the substrate. The heater can be, for example, an external tubular heater and / or a combination of a susceptor within the article adapted to be heated by an induction coil and an induction coil outside the article.

[0035] The invention further provides a method for manufacturing the aerosol-generating device described herein, wherein at least two aerosol-generating portions are co-extruded, preferably wherein at least one second aerosol-generating portion is a flavoured foam, preferably does not contain tobacco, and wherein the first aerosol-generating portion comprises tobacco material, preferably a processed tobacco mixture, most preferably a tobacco foam.

[0036] Finally, novel methods for emitting an aerosol are presented, in which a first flavorant and a second flavorant are adapted to be released in a time-shifted manner, and in particular a method is described for emitting an aerosol from a heated non-combustion aerosol-generating substrate or article in an electrical aerosol generating device, in which upon heating of the article in the device, the first flavorant and at least a second flavorant from the first aerosol-generating portion and at least one second aerosol-generating portion release flavor in a time-shifted manner.

[0037] Finally, any features described above or below with respect to aerosol-generating substrates, articles, methods for manufacturing substrates, and / or methods for emitting an aerosol alone are equally applicable to other subject matter of the present disclosure.

[0038] The invention will now be described with reference to non-limiting examples and drawings. [Brief description of the drawings]

[0039] [Figure 1] 1 shows a perspective view of a first embodiment of an article. [Diagram 2] FIG. 1 illustrates flavor release over time by articles of the present invention. [Diagram 3] A further embodiment of an article of the present invention is shown in cross-section. [Figure 4] 1 shows a schematic of a device for co-extruding two aerosol-generating parts. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0040] As can be seen from FIG. 1, the article 10 described herein is typically cylindrical and has essentially three sections, each of which may have approximately the same length: a foam or mousse section 12, which may also be called a plug; a paper tube 14 constituting a spacing and / or cooling element; and a filter 16 located at the mouth end of the article, through which flavor-containing vapor is released to the user during vapor inhalation. These sections are substantially attached by a paper wrapper, in particular comprising tipping paper. A ventilation zone (not shown) may be provided, such as by at least one row of ventilation holes passing through the wrapper, the filter and / or the paper tube. According to its formation, the foam has an open-cell structure (i.e. bubbles that communicate with each other to form a porous three-dimensional network). In the illustrated embodiment, the plug 12 is surrounded by a heating element 18, which may be, for example, a heater tube. As shown by arrow A, by applying negative pressure to the mouth end, heated air flows through the article, causing the heat flow to extract flavour and optionally nicotine from the plug, first from the first aerosol-generating portion 28, for delivery to the user.

[0041] This is enhanced by the second aerosol-generating portion 20, which is preferably located at the center of the plug 12 and may have a diameter of approximately one-third of the diameter of the plug if a single second aerosol-generating portion is present, as shown in FIG. 3 for multiple second aerosol-generating portions 20. These one or more second aerosol-generating portions 20 do not necessarily extend in perfect alignment with the axial or longitudinal direction of the plug, which typically has a cylindrical shape. Rather, the second aerosol-generating portion 20 may extend at an angle to the longitudinal direction and may include one or more curves or bends along the extension of the second aerosol-generating portion 20. In a possible embodiment, a hollow tube, for example a paper tube, may be further inserted into the plug to form a central air flow passage, and the two or more aerosol-generating portions are overlaid on the tube (not shown). As a result of the surface of the through hole having a foam, heat flow can be increased and more flavor and nicotine can be extracted.

[0042] Heat is transferred not only to the aerosol-generation portion by the heated air flow through the plug, as shown by arrow A, but also laterally or radially, as shown by arrow B. Thus, tobacco flavor is released first in the radially outer first aerosol-generation portion (28), followed after a period of time by secondary, typically non-tobacco flavors.

[0043] FIG. 2 shows a staggered flavor release, where tobacco flavor and optionally nicotine are released in a relatively bursty manner over a short period of time, reaching a certain peak, followed by a high and relatively constant level. Moreover, one or more secondary flavors are released later, preferably at staggered times, with similar flavor intensities over time, allowing both flavor enhancement and diversification. In particular, each aerosol-generating portion provides a relatively sustained release with peaks and declines, which are advantageously compensated for by the peaks of the second aerosol-generating portion. The advantage is to keep the release of volatile substances high and as constant as possible during the entire vaping action, so that no flavor or taste drops are perceptible.

[0044] Figure 3 shows an example of a plug 12 having multiple aerosol-generating portions arranged substantially concentrically. It should be noted that the centre of the plug can be left hollow and thus can be occupied by, for example, a hollow cardboard tube.

[0045] FIG. 4 illustrates a co-extrusion device 22 in which a second flavor providing e-mousse 24 is substantially delivered into a tobacco-containing blend 26 provided by a delivery pump of the device 22, thereby producing substantially the embodiment of the plug 12 shown in FIG.

[0046] Working Example The aerosol-generating substrate was prepared by co-extruding the e-mousse into the tobacco blend (tobacco foam) using the co-extruder shown in Figure 4. The e-mousse is prepared by mixing the ingredients in a mixer before feeding the ingredients into the extruder (via a second extruder or piston) prior to the co-extrusion nozzle.

[0047] TIFF2025500119000002.tif119170

[0048] The e-liquid was a 1:1 ratio PG / VG and contained flavourants and / or nicotine. The amount of flavourants may be between 0.5% and 14% by weight, preferably between 3% and 14% by weight, based on the weight of the e-mousse. The e-mousse may also contain nicotine in an amount between 0.45% and 3.4% by weight, most preferably 1.14% by weight.

[0049] Different tobacco blends were tested according to the following recipes (as in WO 2020 / 002607): The tobacco blends are preferably prepared by mixing the ingredients in a mixer prior to introducing them to the inlet of the co-extruder, or alternatively by staggered introduction of the ingredients into different sections of the extruder.

[0050] TIFF2025500119000003.tif119170

[0051] Melting resistance of e-mousse Small cylindrical e-mousses (recipe from Examples 1 to 3) with a diameter of 7 mm and a length of 10 mm were produced and placed in an oven at a temperature of 200° C. for 60 seconds. Visual observation of the cylinders after cooling to ambient temperature showed some browning, but no significant deformation or change in volume of more than 10%. In Example 1, the large amount of binder prevents the material from melting. In Examples 2 and 3, the amount of binder and cellulose also prevents the material from melting.

Claims

1. An aerosol generating substrate (12) for a non-combustible aerosol generating device, comprising a first aerosol generating portion (28) and at least one second aerosol generating portion (20) positioned adjacent to the first aerosol generating portion (28), wherein the first aerosol generating portion (28) and the second aerosol generating portion (20) each contain an aerosol generating agent and a first flavorant and a second flavorant that are different from each other, at least one of the first aerosol generating portion (28) and the second aerosol generating portion (20) is a foam containing a non-tobacco flavorant, the foam is configured to generate an aerosol when heated, and the foam cannot be melted under aerosol generating conditions at a temperature within the heating temperature range of the aerosol generating device, and the heating temperature range is 180°C to 350°C, the foam contains a foam forming agent selected from the group consisting of agar, gellan gum, lecithin, polyglycerol fatty acid ester, glycerol fatty acid ester, sorbitan fatty acid ester, and / or mixtures thereof, The aerosol generating substrate (12).

2. The aerosol generating substrate (12) according to claim 1, wherein the heating temperature range is 200 to 320°C, preferably 230 to 320°C.

3. The aerosol generating substrate (12) according to claim 1, wherein the first aerosol generating portion (28) is a foam containing a tobacco material and / or a non-tobacco flavorant.

4. The aerosol generating substrate (12) according to claim 1, wherein the first aerosol generating portion (28) and the at least one second aerosol generating portion (20) are co-extrudates and / or are arranged concentrically.

5. The foam of the first aerosol generating portion (28) and / or the at least one second aerosol generating portion (20) contained in the aerosol generating substrate (12) contains a foam stabilizer, the aerosol generating substrate (12) according to claim 1.

6. The foam stabilizer is selected from the group consisting of cellulose gum, hydroxyalkylated carbohydrates, their derivatives, and mixtures thereof, the aerosol generating substrate (12) according to claim 5.

7. The foam stabilizer contains cellulose gum, particularly carboxymethyl cellulose (CMC) or its derivatives and / or cellulose fibers, the aerosol generating substrate (12) according to claim 6.

8. The foaming agent in the first aerosol generating portion (28) and / or the at least one second aerosol generating portion (20) is in an amount of at least 40% by weight, preferably containing propylene glycol, glycerin, or a combination thereof, the aerosol generating substrate (12) according to claim 1.

9. The first aerosol generating portion (28) contains tobacco powder, preferably a processed tobacco mixture, most preferably a tobacco foam, the aerosol generating substrate (12) according to claim 1.

10. The second aerosol generating portion (20) contains a non-tobacco flavorant selected from the list of menthol, natural and / or artificial plant flavors (e.g., peppermint, berry, fruit, root, or nut), animal-derived, enzyme-derived, or microorganism-derived flavors, flavors such as sweet, alcoholic, or dessert flavors (e.g., chocolate, cookie dough, peanut butter, carrot cake, marshmallow, butter popcorn, prosecco, red wine, rum, jelly beans, Guinness, bourbon, honey, taffy, praline, butterfinger, black bread, etc.), and combinations thereof, the aerosol generating substrate (12) according to claim 1.

11. The aerosol generating substrate (12) according to claim 1, wherein the first aerosol generating part and the at least one second aerosol generating part are in a coaxial arrangement (20) adapted such that, upon heating, the flavor release from the first aerosol generating part and the at least one second aerosol generating part (20) is temporally shifted.

12. A heat-not-burn aerosol generating article (10) comprising the aerosol generating substrate (12) according to any one of claims 1 to 11, wherein the aerosol generating substrate (12) is wrapped with an outer wrapper.

13. The heat-not-burn aerosol generating article (10) according to claim 12, further comprising a filter (16) and a spacing holding / cooling part (14) between the filter and the aerosol generating substrate (12).

14. A method for manufacturing an aerosol generating substrate (12) for a non-burning aerosol generating device, comprising a first aerosol generating part (28) and at least one second aerosol generating part (20) positioned adjacent to the first aerosol generating part (28), wherein the first aerosol generating part (28) and the second aerosol generating part (20) each contain an aerosol generating agent and a first flavoring and a second flavoring that are different from each other, at least one of the first aerosol generating part (28) and the second aerosol generating part (20) is a foam containing a non-tobacco flavoring, the foam is configured to generate an aerosol upon heating, the foam cannot be melted under aerosol generating conditions at a temperature within the heating temperature range of the aerosol generating device, the heating temperature range is 180°C to 350°C, and the first aerosol generating part (28) and the at least one second aerosol generating part (20) are co-extruded.

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