An aerosol generating product

Abstract

The present invention discloses an aerosol-generating product, comprising an aerosol-forming substrate, wherein the aerosol-forming substrate comprises at least two or more aerosol-forming substrates with different densities, and the filling density of the aerosol-forming substrate is 0.3-0.7 g / cm 3 The present invention can make the aerosol generating product produce a good and stable aerosol release effect, and can effectively improve the utilization rate of the aerosol forming substrate, and can also make the aerosol generating product reach the ideal heating temperature range in time for each puff during the heating period, ensuring that the aerosol is effectively released and transferred during each puff.

Description

Technical Field

[0001] The present invention relates to the technical field of novel tobacco products, and in particular to an aerosol generating product. Background Art

[0002] Aerosol-generating articles are known in the art in which an aerosol-generating substrate (such as a tobacco-containing substrate) is heated rather than burned. Typically, in such heated smoking articles, an aerosol is generated by transferring heat from a heat source to the aerosol-generating substrate.

[0003] In the prior art, aerosol-generating products are generally only filled with a single-density aerosol-forming substrate. When the volume of the aerosol-generating product is certain, the higher the filling mass of the aerosol-forming substrate, the more suction substances are provided, and the greater the aerosol release amount; but since the aerosol-forming substrate has a single density, the higher the filling mass of the aerosol-forming substrate, the lower the porosity inside the aerosol-forming substrate, which will affect the temperature recovery ability of the aerosol-forming substrate in the aerosol-generating product. The worse the temperature recovery ability is, the heating of the aerosol-forming substrate is unstable, affecting the effect of releasing the aerosol, and the higher the density, the more waste of the aerosol-forming substrate will be caused.

[0004] When the filling mass of the aerosol-forming substrate is lower, although the temperature recovery ability inside the aerosol-generating product is good and the effective components of the aerosol-forming substrate can be well evaporated by heat, the aerosol supply is small, which affects the effect of releasing aerosol and the suction effect. Therefore, it is not difficult to find that in the case of a single-density aerosol-forming substrate, it is difficult to achieve a high utilization rate of the aerosol-forming substrate while achieving a good aerosol release effect. Summary of the invention

[0005] To solve the above problems, the embodiments of the present invention disclose an aerosol-generating product, comprising an aerosol-forming substrate, wherein the aerosol-forming substrate comprises at least two or more aerosol-forming substrates with different densities, and the filling density of the aerosol-forming substrate is 0.3-0.7 g / cm 3 .

[0006] By adopting the above technical scheme, selecting two or more aerosol-forming substrates with different densities, and designing the filling density of the aerosol-forming substrate within a reasonable range, the aerosol-generating product can produce a good and stable aerosol release effect, and the utilization rate of the aerosol-forming substrate can be effectively improved. It can also enable the aerosol-generating product to reach the ideal heating temperature range in time for each puff during the heating period, thereby ensuring that the aerosol is effectively released and transferred during each puff.

[0007] According to another specific embodiment of the present invention, an aerosol-generating article is disclosed, wherein the filling density of the aerosol-forming matrix is ​​0.48-0.60 g / cm 3 .

[0008] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an aerosol-generating article, which includes a first aerosol-forming substrate and a second aerosol-forming substrate, and the density of the first aerosol-forming substrate is greater than the density of the second aerosol-forming substrate.

[0009] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an aerosol-generating product, wherein the first aerosol-forming substrate is an aerosol-forming substrate made by a roller pressing method or a thick slurry method.

[0010] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an aerosol-generating product, and the second aerosol-forming substrate is an aerosol-forming substrate made by a dry papermaking method or a papermaking method.

[0011] According to another specific embodiment of the present invention, an aerosol-generating article is disclosed, wherein the density of the first aerosol-forming substrate is 0.8-2.0 g / cm 3 , the blending mass accounts for 50wt%-100wt%; the density of the second aerosol-forming substrate is less than 0.8g / cm 3 , the blending mass accounts for 0wt%-50wt%.

[0012] According to another specific embodiment of the present invention, an aerosol-generating article is disclosed, wherein the density of the first aerosol-forming substrate is 0.9-1.2 g / cm 3 , the blending mass accounts for 70wt%-100wt%; the density of the second aerosol-forming substrate is 0.5-0.7g / cm 3 , the blending mass accounts for 0wt%-30wt%.

[0013] According to another specific embodiment of the present invention, an embodiment of the present invention discloses an aerosol generating product, wherein the blending mass of the first aerosol forming substrate accounts for 81wt%-100wt%; the blending mass of the second aerosol forming substrate accounts for 0wt%-19wt%.

[0014] According to another specific embodiment of the present invention, an aerosol generating product is disclosed, wherein the porosity of the aerosol forming matrix is ​​V c Meet the conditions 25% ≤ Vc ≤ 65%, where

[0015]

[0016] ρ f is the packing density of the aerosol-forming matrix, measured in g / cm 3 ,

[0017] x is the number of aerosol-forming substrates of different densities contained in the aerosol-generating article,

[0018] α x is the mass percentage of the blended mass of the x-th aerosol-forming substrate, and α1+…+α x =100;

[0019] ρ x is the density of the x-th aerosol-forming substrate, measured in g / cm 3 .

[0020] According to another specific embodiment of the present invention, an aerosol generating article is disclosed in an embodiment of the present invention, wherein the void fraction of the aerosol forming matrix is ​​35%≤V c ≤50%.

[0021] By adopting the above technical scheme, the aerosol generating product can produce a good and stable aerosol release effect, and can effectively improve the utilization rate of the aerosol forming substrate. It can also enable the aerosol generating product to reach the ideal heating temperature range in time for each puff during the heating period, thereby ensuring that the aerosol is effectively released and transmitted during each puff. DETAILED DESCRIPTION

[0022] The following specific embodiments illustrate the implementation of the present invention, and those skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification. Although the description of the present invention will be introduced in conjunction with the preferred embodiment, this does not mean that the features of this invention are limited to this implementation. On the contrary, the purpose of introducing the invention in conjunction with the implementation is to cover other options or modifications that may be extended based on the claims of the present invention. In order to provide a deep understanding of the present invention, the following description will include many specific details. The present invention can also be implemented without using these details. In addition, in order to avoid confusion or blurring the focus of the present invention, some specific details will be omitted in the description.

[0023] The term "aerosol-generating article" is used herein to describe an article comprising an aerosol-forming substrate that can be heated to generate an aerosol and deliver it to a consumer.

[0024] The term "aerosol-forming substrate" means a substrate capable of releasing volatile compounds upon heating to generate an aerosol. During use, the volatile compounds are released from the aerosol-forming substrate by heat transfer.

[0025] The term "aerosol-forming substrate" means consisting of or comprising an aerosol-forming substrate which is capable of releasing volatile compounds upon heating to generate an aerosol.

[0026] When the volume of the aerosol-generating product is constant, the higher the filling density of the aerosol-forming substrate, the higher the quality of the aerosol-forming substrate in the aerosol-generating product. Adequate aerosol-forming substrate can provide enough suction material, but higher or lower aerosol-forming substrate filling amounts will increase the difficulty of making aerosol-generating products; lower aerosol-forming substrate filling amounts will also affect the suction effect, while higher aerosol-forming substrate filling amounts will affect the temperature recovery ability of the aerosol-generating product and cause waste of aerosol-forming substrate, so it is necessary to provide a reasonable aerosol-forming substrate filling density. And for aerosol-forming substrates at a single density, its temperature is not conducive to reaching or recovering to the ideal heating temperature range during preheating and suction, and is not conducive to good heat evaporation of the effective ingredients in the aerosol-forming substrate.

[0027] As one aspect of the present invention, the present invention discloses an aerosol generating product, comprising an aerosol matrix, wherein the aerosol matrix comprises at least two or more aerosol forming substrates with different densities, and the filling density of the aerosol forming substrate is 0.3-0.7 g / cm 3 .

[0028] In the present invention, the "packing density of the aerosol-forming substrate" refers to the mass of the aerosol base material contained in a unit volume of the aerosol-forming substrate.

[0029] Two or more aerosol-forming substrates with different densities are used to fill the aerosol-generating product, and the filling density of the aerosol-forming substrate is 0.3-0.7 g / cm 3 It is beneficial for the temperature of the aerosol-forming substrate to reach or recover to the ideal heating temperature range in time during preheating and puffing, ensuring the effective release and transfer of the aerosol during each puff, and is beneficial for the effective ingredients in the aerosol-forming substrate to be well heated and evaporated, which is beneficial to produce a good and stable aerosol release effect; while ensuring the provision of sufficient puffing material, the utilization rate of the aerosol-forming substrate can also be effectively improved.

[0030] In certain embodiments of the invention, the packing density of the aerosol-forming substrate is 0.48-0.60 g / cm 3 .

[0031] In certain embodiments of the invention, the aerosol-generating article comprises a first aerosol-forming substrate and a second aerosol-forming substrate, the first aerosol-forming substrate having a density greater than the density of the second aerosol-forming substrate.

[0032] The aerosol-forming substrate may be a tobacco material, and may comprise one or more of: herb leaves, tobacco leaves, tobacco rib pieces, reconstituted tobacco, homogenised tobacco, extruded tobacco and expanded tobacco.

[0033] The aerosol-forming substrate may be in the form of one or more of powder, granules, pellets, chips, tubes, strips or flakes.

[0034] The aerosol-forming substrate may be a non-tobacco material, including an aerosol-forming agent;

[0035] Aerosol formers include, but are not limited to, polyols such as glycerol, triethylene glycol; esters of polyols such as glycerol mono-, di- or triacetate; and aliphatic esters of mono-, di- or polycarboxylic acids such as dimethyl tetradecanedioate.

[0036] In certain embodiments of the present invention, the first aerosol-forming substrate is preferably made by a roll-pressing method or a thick slurry method.

[0037] The roller pressing method refers to the use of physical methods to mix tobacco dust, tobacco stems, cellulose, and adhesives in a dry state, add a small amount of water, additives, etc., and use a roller to press them into a thin sheet or filamentary aerosol to form a substrate and dry it. After demolding, it is rolled up or cut into the required shape.

[0038] The thick slurry method refers to drying the chopped tobacco leaves and stems and grinding them into tobacco powder, then adding the powder to a solution containing an adhesive, a combustion aid, mineral ash, a humectant and reinforcing fiber to form a silk slurry, applying the thick slurry on a stainless steel belt to form a film, and after drying, rehydration and demolding, rolling it up or cutting it into thin sheets or filaments of aerosol to form a substrate.

[0039] The aerosol-forming substrate prepared by the roller pressing method or the thick slurry method has a relatively high density, relatively poor filling performance, and a good effect of releasing aerosol.

[0040] The first aerosol-forming substrate includes, but is not limited to, one made by a roll-pressing method or a thick slurry method.

[0041] In certain embodiments of the present invention, the second aerosol-forming substrate is preferably made by a dry-laid papermaking process or a papermaking process.

[0042] The papermaking method draws on the papermaking process and utilizes tobacco stems, tobacco butts and other raw materials discarded in the cigarette production process. After three steps of extraction and concentration, pulping and papermaking, and drying and flavoring, it is made into an aerosol-forming substrate with properties close to or even better than natural tobacco leaves.

[0043] The dry papermaking method is based on the dry papermaking process. Compared with the papermaking method, purified air is used instead of water as the medium for dispersing and transporting fibers.

[0044] The aerosol-forming substrates produced by the dry papermaking process or the papermaking process have low density, high filling performance, and poor effect in releasing aerosols.

[0045] The second aerosol-forming substrate includes, but is not limited to, one made by a dry-laid papermaking process or a papermaking process.

[0046] Therefore, the first aerosol-forming substrate prepared by the rolling method or the thick slurry method is mixed with the second aerosol-forming substrate prepared by the dry papermaking method or the papermaking method to form an aerosol-generating product. By adjusting the mixing mass ratio of the first aerosol-forming substrate and the second aerosol-forming substrate, the aerosol-generating product can produce a good and stable aerosol release effect, the utilization rate of the aerosol-forming substrate can also be effectively improved, and it can also be ensured that the aerosol-generating product can reach the ideal heating temperature range in time for each puff during the heating period.

[0047] In certain embodiments of the present invention, the density of the first aerosol-forming substrate is 0.8-2.0 g / cm 3 , the blending mass accounts for 50wt%-100wt%; the density of the second aerosol-forming substrate is less than 0.8g / cm 3 , the blending mass accounts for 0wt%-50wt%.

[0048] In the present invention, "the blended mass proportion of the first aerosol-forming substrate" refers to the proportion of the mass of the first aerosol-forming substrate in the total mass of the aerosol-forming substrate; "the blended mass proportion of the second aerosol-forming substrate" refers to the proportion of the mass of the second aerosol-forming substrate in the total mass of the aerosol-forming substrate.

[0049] In certain embodiments of the present invention, the density of the first aerosol-forming substrate is 0.9-1.2 g / cm 3 , the blending mass accounts for 70wt%-100wt%; the density of the second aerosol-forming substrate is 0.5-0.7g / cm 3 , the blending mass accounts for 0wt%-30wt%.

[0050] In certain embodiments of the present invention, the blending mass of the first aerosol-forming substrate accounts for 81 wt%-100 wt%; the blending mass of the second aerosol-forming substrate accounts for 0 wt%-19 wt%.

[0051] In certain embodiments of the present invention, the porosity of the aerosol-forming substrate is V c Meet the conditions 25% ≤ Vc ≤ 65%, where

[0052]

[0053] ρ f is the packing density of the aerosol-forming matrix, measured in g / cm3 ,

[0054] x is the number of aerosol-forming substrates of different densities contained in the aerosol-generating article,

[0055] α x is the mass percentage of the blended mass of the x-th aerosol-forming substrate, and α1+…+α x =100;

[0056] ρ x is the density of the x-th aerosol-forming substrate, measured in g / cm 3 .

[0057] In certain embodiments of the present invention, the porosity of the aerosol-forming matrix satisfies 35%≤V c ≤50%.

[0058] In the present invention, "aerosol-forming substrate porosity" refers to the ratio of the volume of air in the aerosol-forming substrate to the total volume of the aerosol-forming substrate.

[0059] In the present invention, ACM cig The effect of releasing aerosol can be judged by the value of ACM or the value of thermal diffusion coefficient. g The value of is used to judge the utilization degree of aerosol formation substrate.

[0060] ACM cig It is an indicator for evaluating the aerosol release capacity of aerosol-generating products under the inhalation state, and is defined as the aerosol release amount of a single aerosol-generating product, ACM cig The unit is mg / piece. For aerosol generating products, the larger the aerosol release amount of a single aerosol generating product, the better the effect of releasing aerosol.

[0061] ACM cig During the test, a single aerosol generating product is smoked and heated on an automatic aerosol analysis smoking machine, and the total particulate matter is collected using a glass fiber filter smoke collector. The mass of the total particulate matter is weighed, which is the aerosol release amount of the single aerosol generating product.

[0062] The thermal diffusion coefficient is an indicator for evaluating the temperature recovery ability of aerosol-generating products under the inhalation state. The dimension of the thermal diffusion coefficient is mm. 2 / s. For aerosol generating products, the larger the thermal diffusion coefficient, the faster the temperature inside the aerosol generating product can be restored after preheating and inhalation, the effective components of the aerosol forming substrate can be well heated and evaporated, and the effect of releasing aerosol is good.

[0063] The thermal diffusion coefficient can be detected by referring to the transient plane heat source method and measured using the HOT-DISK thermal property measuring instrument.

[0064] ACM g It is an indicator for evaluating the utilization of aerosol-forming substrates in aerosol-generating products under the inhalation state. It is defined as the amount of aerosol released per unit mass and the calculation formula is ACM. g =ACM cig / Mass of aerosol-forming substrate in a single aerosol-generating product, ACM g The unit is mg / g. For aerosol generating products, the greater the aerosol release per unit mass, the higher the utilization rate of the aerosol-forming substrate in the aerosol generating product.

[0065] In this paper, we will focus on the dimensional ACM cig 、ACM g Normalized with the thermal diffusion coefficient to become dimensionless ACM cig 、ACM g and thermal diffusivity.

[0066] The dimensionless ACM obtained after normalization cig 、ACM g The sum of the coefficient of thermal diffusion is taken as the final sum value, and the comprehensive index value is used as the final judgment on the effect of aerosol release and the utilization degree of aerosol formation substrate. The larger the comprehensive index value, the better the comprehensive effect of aerosol release and the utilization degree of aerosol formation substrate.

[0067] Embodiment 1:

[0068] The second aerosol-forming substrate has a density of 0.65 g / cm 3 , the blending mass accounts for 13wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 87wt%; the filling density of the aerosol forming matrix is ​​0.6g / cm 3 .

[0069] ACM detected cig 32.17 mg / vial, ACM g 88.9 mg / g, thermal diffusion coefficient is 0.1201 mm 2 / s, after normalizing the above three indicators, we get: ACM cig is 1.00, ACM g is 1.00, the thermal diffusion coefficient is 0.00, and the comprehensive index value is 2.00.

[0070] Embodiment 2:

[0071] The second aerosol-forming substrate has a density of 0.65 g / cm 3, the blending mass accounts for 19wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 81wt%; the filling density of the aerosol-forming matrix is ​​0.6g / cm 3 .

[0072] ACM detected cig 28.46 mg / vial, ACM g The thermal diffusion coefficient is 78.71 mg / g and 0.1243 mm 2 / s, after normalizing the above three indicators, we get: ACM cig 0.71, ACM g The thermal diffusion coefficient is 0.43, and the comprehensive index value is 1.65.

[0073] Embodiment 3:

[0074] The second aerosol-forming substrate has a density of 0.65 g / cm 3 , the blending mass accounts for 19wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 81wt%; the filling density of the aerosol forming matrix is ​​0.48g / cm 3 .

[0075] ACM detected cig 22.92 mg / vial, ACM g The thermal diffusion coefficient is 79.45 mg / g and 0.1271 mm 2 / s, after normalizing the above three indicators, we get: ACM cig 0.28, ACM g The thermal diffusion coefficient is 0.54, the comprehensive index value is 0.72, and the comprehensive index value is 1.54.

[0076] Embodiment 4:

[0077] The second aerosol-forming substrate has a density of 0.65 g / cm 3 , the blending mass accounts for 19wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 81wt%; the filling density of the aerosol-forming matrix is ​​0.54g / cm 3 .

[0078] ACM detected cig 26.5 mg / vial, ACM g The thermal diffusion coefficient is 81.53 mg / g and 0.1246 mm 2 / s, after normalizing the above three indicators, we get: ACM cig0.56, ACM g The thermal diffusion coefficient is 0.46, and the comprehensive index value is 1.66.

[0079] Comparative Example 1:

[0080] The second aerosol-forming substrate has a density of 0.65 g / cm 3 , the blending mass accounts for 25wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 75wt%; the filling density of the aerosol forming matrix is ​​0.6g / cm 3 .

[0081] ACM detected cig 24.74 mg / vial, ACM g The thermal diffusion coefficient is 0.1298 mm 2 / s, after normalizing the above three indicators, we get: ACM cig 0.42, ACM g The thermal diffusion coefficient is 1.00, and the comprehensive index value is 1.42.

[0082] Comparative Example 2:

[0083] The second aerosol-forming substrate has a density of 0.65 g / cm 3 , the blending mass accounts for 19wt%; the density of the first aerosol-forming substrate is 1.04g / cm 3 The blending mass accounts for 81wt%; the filling density of the aerosol-forming matrix is ​​0.42g / cm 3 .

[0084] ACM detected cig 19.32 mg / vial, ACM g The thermal diffusion coefficient is 76.86 mg / g and 0.1280 mm 2 / s, after normalizing the above three indicators, we get: ACM cig 0.00, ACM g The thermal diffusion coefficient is 0.41, the thermal diffusion coefficient is 0.81, and the comprehensive index value is 1.22.

[0085] The specific parameter values ​​and comprehensive index values ​​of Examples 1-4 are shown in Table 1.

[0086] Table 1

[0087]

[0088] The specific parameter values ​​and comprehensive index values ​​of Comparative Example 1 and Comparative Example 2 are shown in Table 2.

[0089] Table 2

[0090]

[0091] In Example 1, Example 2 and Comparative Example 1, the filling density of the aerosol-forming matrix is ​​0.6 g / cm 3 The density of the first aerosol-forming substrate is 1.04 g / cm 3 The density of the second aerosol-forming substrate is 0.65 g / cm 3 ; In Example 1, the blending mass proportion of the second aerosol forming substrate is 13wt%; in Example 2, the blending mass proportion of the second aerosol forming substrate is 19wt%; in Comparative Example 1, the blending mass proportion of the second aerosol forming substrate is 25wt%, wherein the comprehensive index values ​​of Example 1 and Example 2 are both greater than the comprehensive index value of Comparative Example 1.

[0092] In Example 2, Example 3, Example 4 and Comparative Example 2, the density of the first aerosol-forming substrate is 1.04 g / cm 3 , the blending mass ratio is 81wt%; the density of the second aerosol-forming substrate is 0.65g / cm 3 , the blending mass ratio is 19wt%; the filling density of the aerosol forming matrix in Comparative Example 2 is 0.42g / cm 3 The filling density of the aerosol-forming matrix in Example 2, Example 3 and Example 4 is 0.60 g / cm 3 , 0.48g / cm 3 and 0.54g / cm 3 The comprehensive index values ​​of Example 2, Example 3 and Example 4 are all greater than the comprehensive index value of Comparative Example 2.

[0093] The porosity of the aerosol-forming matrix is ​​V c satisfy:

[0094] Among them, ρ f is the packing density of the aerosol-forming matrix, measured in g / cm 3 ,

[0095] x is the number of aerosol-forming substrates of different densities contained in the aerosol-generating article,

[0096] α x is the mass percentage of the blended mass of the x-th aerosol-forming substrate, and α1+…+α x =100;

[0097] ρ x is the density of the x-th aerosol-forming substrate, measured in g / cm 3 .

[0098] In Examples 1-4 and Comparative Examples 1-2 of the present invention, the aerosol-generating articles all comprise a first aerosol-forming substrate and a second aerosol-forming substrate. According to the above formula, in Comparative Examples 1 and 2, the porosity of the aerosol-forming substrate is 33.7% and 55%, respectively. The porosity of the aerosol-forming substrate in Examples 1, 2, 3 and 4 is 37.8%, 35.7%, 48.6% and 42.2%, respectively.

[0099] The comprehensive index values ​​of Comparative Examples 1 and 2 are all smaller than the comprehensive index values ​​of Example 1, Example 2, Example 3 and Example 4.

[0100] Through the above strict and sufficient comparison, it can be seen that the specific parameter selection of the present invention has achieved significant effect improvement. Various conventional selections outside the scope of the claims made by those skilled in the art are far from achieving the effect of the present invention.

[0101] Although the present invention has been described by reference to certain preferred embodiments of the present invention, it should be understood by those skilled in the art that the above is a further detailed description of the present invention in conjunction with specific embodiments, and it cannot be determined that the specific implementation of the present invention is limited to these descriptions. Those skilled in the art may make various changes in form and details, including making several simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol generating product, characterized in that The aerosol-forming substrate comprises a first aerosol-forming substrate and a second aerosol-forming substrate having two different densities, wherein the density of the first aerosol-forming substrate is greater than the density of the second aerosol-forming substrate, and the porosity of the aerosol-forming substrate is V c Satisfy the condition 35%≤V c ≤50%, of which, ρ f is the packing density of the aerosol-forming matrix, measured in g / cm 3 , x is the number of aerosol-forming substrates of different densities contained in the aerosol-generating article, α x is the mass percentage of the blended mass of the x-th aerosol-forming substrate, and α1+…+α x =100%; ρ x is the density of the x-th aerosol-forming substrate, measured in g / cm 3 , The filling density of the aerosol-forming matrix is ​​0.48-0.60 g / cm 3 The density of the first aerosol-forming substrate is 0.9-1.2 g / cm 3 The density of the second aerosol-forming substrate is 0.5-0.7 g / cm 3 The first aerosol-forming substrate accounts for 81wt%-100wt% of the blending mass, and the second aerosol-forming substrate accounts for 0wt%-19wt%.

2. The aerosol-generating article according to claim 1, wherein The first aerosol-forming substrate is an aerosol-forming substrate produced by a roll pressing method or a thick slurry method.

3. The aerosol-generating article according to claim 1, wherein The second aerosol-forming substrate is an aerosol-forming substrate made by a papermaking method.

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