Aerosol generating matrix section and aerosol generating product

Abstract

The invention relates to the technical field of aerosol generation, and provides an aerosol generation matrix section and an aerosol generation product, the aerosol generation matrix section comprises at least two matrix strips, the matrix strips are arranged in parallel to form a bundle and extend from one end of the aerosol generation matrix section to the other end, and the matrix strips are arranged in the bundle. All the matrix strips have at least two densities. Through cooperation of the matrix strips with different densities, the release amount of aerosol can be roughly kept consistent in the front, middle and rear sections of smoking, the aerosol release consistency is improved, the consistency of smoking taste can be improved, and then the smoking experience feeling can be improved.

Description

Technical Field

[0001] The present application relates to the technical field of aerosol generation, and in particular to an aerosol generating substrate segment and an aerosol generating product. Background Art

[0002] Aerosol-generating products generally generate aerosols by heating without burning. Specifically, the aerosol-generating product contains an aerosol-generating matrix. The aerosol-generating product is loaded into an aerosol-generating device and heated by a heating component in the aerosol-generating device so that the aerosol-generating matrix is ​​heated just enough to emit an aerosol. However, the aerosol-generating matrix does not burn. When used, the aerosol-generating matrix is ​​heated to release the aerosol.

[0003] In the related art, the forms of aerosol generating matrices mainly include filaments, sheets, loose particles, and integrated porous columns. Due to their own structural reasons, these aerosol generating matrices are difficult to ensure that the aerosol release amount remains consistent in the front, middle and back sections of the puff during the heating process. There is a problem of poor consistency in the aerosol release amount before and after, and the consistency of the puff is difficult to achieve an ideal state, resulting in a poor puffing experience. Summary of the Invention

[0004] In view of this, the embodiments of the present application hope to provide an aerosol-generating substrate segment and an aerosol-generating product that can improve the consistency of aerosol release.

[0005] To achieve the above-mentioned purpose, one embodiment of the present application provides an aerosol-generating substrate segment, which includes at least two substrate strips, each of which is arranged in parallel into a bundle and extends from one end of the aerosol-generating substrate segment to the other end, and all of the substrate strips have at least two densities.

[0006] In some embodiments, the cross-sectional size and / or density of a single matrix strip at any two positions along its own extension direction are the same.

[0007] In some embodiments, in a cross section perpendicular to the extension direction of the matrix strips, the cross-sectional dimensions of all the matrix strips are the same.

[0008] In some embodiments, the angle between the extension direction of each of the substrate strips and the central axis of the aerosol-generating substrate segment is no greater than 10 degrees.

[0009] In some embodiments, the plurality of matrix strips are configured into at least two radially nested sets, the matrix strips in a single set have the same density, and the matrix strips in at least two sets have different densities.

[0010] In some embodiments, the set includes a first set, a second set, and a third set that are nested layer by layer from the inside to the outside along the radial direction, the matrix strips of the first set are first density strips, the matrix strips of the second set are second density strips, and the matrix strips of the third set are third density strips, and the density of the first density strips and the density of the third density strips are different from the density of the second density strips.

[0011] In some embodiments, the density of the first density strip and the density of the third density strip are both smaller than the density of the second density strip.

[0012] In some embodiments, the density of the first density strips and the density of the third density strips are the same or different.

[0013] In some embodiments, one of the density of the first density strip and the density of the second density strip is 400 mg / cm 3 -1300mg / cm 3 The density of the first density strip and the density of the second density strip, the other of which is 900 mg / cm 3 -2000mg / cm 3 .

[0014] In some embodiments, the density of the third density strip is 400 mg / cm 3 -1300mg / cm 3 .

[0015] In some embodiments, the density of the plurality of matrix strips in the collection increases or decreases sequentially from the center of the cross section of the aerosol-generating substrate segment outward.

[0016] In some embodiments, the set of matrix strips having a density of a first value is a first group, and the set of matrix strips having a density of a second value is a second group, the first value and the second value are different, and multiple first groups and multiple second groups are alternately arranged radially.

[0017] In some embodiments, the density difference between two adjacent matrix strips of the set is 50 mg / cm 3 -300mg / cm 3 Or, the density difference between any two matrix strips of the set is 50 mg / cm 3 -600mg / cm 3 .

[0018] In some embodiments, the density of the matrix strip is 400 mg / cm 3 -2000mg / cm 3 .

[0019] In some embodiments, the equivalent diameter of the cross section of the matrix strip is 0.4 mm to 7 mm.

[0020] In some embodiments, the dimension of the matrix strip along its extension direction is 6 mm-40 mm.

[0021] In some embodiments, part of the matrix strips is defined as a first unit, and the remaining part of the matrix strips is defined as a second unit, and the volume ratio of the first unit to the second unit is 1:10 to 5:1;

[0022] The density of the matrix strips of the first unit is in a first density range, the density of the matrix strips of the second unit is in a second density range, and the first density range is smaller than the second density range; or, the density of the matrix strips of the first unit is a first value, the density of the matrix strips of the second unit is a second value, and the first value is smaller than the second value.

[0023] In some embodiments, part of the matrix strips are defined as a first unit, and the remaining part of the matrix strips are defined as a second unit, the density of the matrix strips of the first unit is a first value, the density of the matrix strips of the second unit is a second value, the first value is less than the second value, and the matrix strips of the first unit and the second unit are uniformly distributed or randomly distributed.

[0024] In some embodiments, the cross section of the matrix strip is a plane perpendicular to the extension direction of the matrix strip, and the cross section of the matrix strip is at least one of polygonal, elliptical, petal-shaped, circular, oval, gear-shaped and irregular.

[0025] In some embodiments, the aerosol-generating substrate segment comprises a packaging layer, which is rolled to form a receiving space, and all the substrate strips are received in the receiving space.

[0026] In some embodiments, the filling rate of all the matrix strips in the aerosol-generating matrix segment is 40%-90%, or the bulk density of the matrix strips in the aerosol-generating matrix segment is 500 mg / cm 3 -1400 mg / cm 3 .

[0027] In some embodiments, the number of the matrix strips is 2-45, or the number of the matrix strips is 20-40.

[0028] In some embodiments, a cross section of the aerosol-generating substrate segment perpendicular to the extension direction of the substrate strip comprises at least two substrate strip cross sections of different sizes.

[0029] In some embodiments, the cross-sectional dimensions of the matrix strips with lower density are smaller than the cross-sectional dimensions of the matrix strips with higher density.

[0030] The present application also provides an aerosol-generating product, comprising:

[0031] An aerosol-generating substrate segment as described in any one of the above items;

[0032] a functional section, the functional section being arranged at one end of the aerosol generating matrix section, the functional section comprising a cooling section and a filtering section, the cooling section being located between the filtering section and the aerosol generating matrix section;

[0033] An outer wrapping layer wraps around the outer circumference of the functional segment and the aerosol generating substrate segment.

[0034] In some embodiments, the aerosol-generating article comprises a breathable membrane;

[0035] At least one end of the aerosol generating substrate segment is provided with the breathable membrane; and / or,

[0036] The breathable membrane is provided at at least one end of the temperature reduction section.

[0037] In some embodiments, the air permeability of the breathable membrane is not less than 500 CU.

[0038] In some embodiments, the aerosol-generating article extends along a first direction, and the dimension of the aerosol-generating substrate segment along the first direction is 20% to 80% of the length dimension of the aerosol-generating article along the first direction; and / or,

[0039] The dimension of the cooling section along the first direction is 25% to 65% of the dimension of the aerosol generating article along the first direction.

[0040] In some embodiments, the cooling section has an air flow channel; and / or the filtering section has a suction channel.

[0041] In some embodiments, the functional section further includes a flavoring section, and the flavoring section is disposed between the cooling section and the filtering section.

[0042] In some embodiments, the fragrance-enhancing segment comprises fragrance-enhancing fiber cotton; or

[0043] The fragrance-enhancing section includes fiber cotton and bursting beads arranged in the fiber cotton.

[0044] In some embodiments, the aerosol-generating article further comprises a plug segment, wherein the plug segment is disposed at an end of the aerosol-generating substrate segment away from the functional segment.

[0045] In some embodiments, the plug section is a hollow tube structure; or, the plug section is a hollow tube structure, and a breathable diaphragm is provided at one end of the plug section away from the aerosol generating substrate section.

[0046] In some embodiments, an insertion channel formed by the matrix strips is provided in the center of the aerosol generating matrix segment.

[0047] The present application also provides an aerosol-generating product, comprising:

[0048] An aerosol-generating substrate segment as described in any one of the above;

[0049] A breathable membrane is provided at at least one end of the aerosol generating substrate segment.

[0050] The aerosol generating matrix segment provided in the embodiment of the present application has at least two matrix strips with different densities. With such a design, during the heating process of the aerosol generating matrix segment, the matrix strips with different densities have different effective material loadings, porosities and heat capacities, and the heat transfer efficiency during heating and the heat required to generate aerosols are different. For the heating component using infrared heating, different porosities have different effects on infrared penetrability. In the initial stage of heating, the matrix strips with relatively low density have relatively low heat capacity, so the energy required to generate aerosols is relatively small, and the matrix strips with relatively low density are more conducive to the penetration heating of infrared light, and the infrared penetrability is high. Even better, compared with the matrix strips with relatively high density, although the temperature of the heating component in the front section of puffing is relatively low, it is enough to allow the matrix strips with relatively low density to quickly produce relatively sufficient aerosol in the front section of puffing. In the middle and back sections of puffing, although the aerosol produced by the matrix strips with relatively low density will decay, with the accumulation of heat conduction and heat, the matrix strips with relatively high density can produce relatively sufficient aerosol. Therefore, through the coordination of multiple matrix strips with different densities, the amount of aerosol released can be kept roughly consistent in the front, middle and back sections of puffing, thereby improving the consistency of aerosol release, thereby improving the consistency of puffing, and then improving the puffing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0051] Figure 1 This is a simplified structural diagram of the first aerosol generating substrate segment according to an embodiment of the present application, wherein the dotted lines are only used to schematically illustrate the range of the assembly;

[0052] Figure 2 This is a simplified structural diagram of the second aerosol generating substrate segment according to an embodiment of the present application, wherein the dotted lines are only used to schematically illustrate the range of the assembly;

[0053] Figure 3 This is a simplified structural diagram of the third aerosol generating substrate segment according to an embodiment of the present application, wherein the dotted lines are only used to schematically illustrate the range of the assembly;

[0054] Figure 4 This is a simplified structural diagram of the fourth aerosol generating substrate segment according to an embodiment of the present application, wherein the dotted lines are only used to schematically illustrate the range of the assembly;

[0055] Figure 5 This is a simplified structural diagram of the fifth aerosol generating substrate segment according to an embodiment of the present application;

[0056] Figure 6 This is a simplified structural diagram of the sixth aerosol generating substrate segment according to an embodiment of the present application;

[0057] Figure 7 A simplified structural diagram of a matrix strip according to an embodiment of the present application;

[0058] Figure 8 This is a simplified structural diagram of the seventh aerosol generating substrate segment according to an embodiment of the present application;

[0059] Figure 9 This is a simplified structural diagram of the eighth aerosol generating substrate segment according to an embodiment of the present application;

[0060] Figure 10 This is a simplified structural diagram of the ninth aerosol generating substrate segment according to an embodiment of the present application;

[0061] Figure 11 This is a simplified structural diagram of the tenth aerosol generating substrate segment according to an embodiment of the present application;

[0062] Figure 12 This is a simplified structural diagram of the eleventh aerosol generating substrate segment according to an embodiment of the present application;

[0063] Figure 13 is a schematic cross-sectional view of a first aerosol-generating article according to an embodiment of the present application;

[0064] Figure 14 is a schematic cross-sectional view of a second aerosol-generating article according to an embodiment of the present application;

[0065] Figure 15 is a schematic cross-sectional view of a third aerosol-generating article according to an embodiment of the present application;

[0066] Figure 16 Schematic cross-sectional view of a fourth aerosol-generating article according to an embodiment of the present application.

[0067] Description of Reference Numerals

[0068] Aerosol-generating articles 1;

[0069] Aerosol-generating substrate segment 10; substrate strips 100; first density strips 101; second density strips 102; third density strips 103; assembly 100a; packaging layer 200; first substrate strips 111; second substrate strips 112;

[0070] Functional section 20; cooling section 21; air flow channel 21a; filtering section 22; suction channel 22a; aroma enhancement section 23;

[0071] outer wrapping layer 30;

[0072] Breathable membrane 40;

[0073] plug section 50;

[0074] Diaphragm 60. DETAILED DESCRIPTION

[0075] In the description of the embodiments of the present application, it should be noted that, unless there is a conflict, the embodiments in the present application and the technical features in the embodiments can be combined with each other, and the detailed description in the specific implementation method should be understood as an explanation of the purpose of the present application and should not be regarded as an improper restriction on the present application.

[0076] In this application, at least two includes two and more than two. A plurality includes two and more than two. The unit "mm" is millimeter. The unit "mg / cm 3 ” is milligrams per cubic centimeter.

[0077] The heating component of the aerosol generating device heats the aerosol generating matrix segment 10, causing the aerosol generating matrix segment 10 to release aerosol. The user inhales the aerosol one puff at a time, that is, the user inhales one puff of the aerosol, stops inhaling, and then inhales the next puff of the aerosol, and in this way, the user inhales intermittently. The front section of the inhalation refers to the period of initial use of the aerosol generating matrix segment 10, and the first few puffs correspond to the front section of the inhalation, such as 1-5 puffs; the back section of the inhalation refers to the period when the aerosol generating matrix segment 10 is close to complete aerosol release, and the last few puffs correspond to the back section of the inhalation, such as the last 1-5 puffs. The front section and back section of the inhalation refer to the early and late stages of the service life of the aerosol generating matrix segment 10, respectively. The middle section of the inhalation refers to the inhalation period between the front section and the back section.

[0078] In the related art, the density of aerosol generating matrix segments in the form of thin sheets, filaments, loose particles, and integrated porous columns is relatively uniform, and it is difficult to design and control the density of these aerosol generating matrix segments differently. However, for these aerosol generating matrix segments with relatively uniform density, when the density of the aerosol generating matrix segment is relatively high, the effective material load of the aerosol generated is high, but the heat capacity is relatively high, the porosity inside the aerosol generating matrix segment is relatively low, and the infrared penetration efficiency is relatively low. The thermal diffusion rate and efficiency of the aerosol generating matrix segment in the initial stage of heating are low, which can easily lead to insufficient aerosol generated by the aerosol generating matrix segment in the front section of the puff, and sufficient aerosol generated in the middle and back sections of the puff. When the density of the aerosol generating matrix segment is relatively low, although the effective material load of the aerosol generated is relatively low, However, the porosity inside the aerosol generating matrix segment is relatively high, the heat capacity is small, and the infrared penetration efficiency is relatively high. The thermal diffusion rate and efficiency of the aerosol generating matrix segment in the initial stage of heating are high, so the smoke output speed is fast and the smoke volume is large, which leads to the aerosol generating matrix segment generating more aerosol in the front section of the puff, while the aerosol generated in the middle and rear sections of the puff shows a significant attenuation. In other words, it is difficult for the aerosol generating matrix segment with a relatively uniform density to ensure that the amount of aerosol released remains consistent in the front, middle and rear sections of the puff during the heating process. Therefore, it is difficult to ensure the consistency of the puff during the puff process, and the puffing experience is poor. In addition, it is also difficult to achieve a radially differentiated porosity design for the aerosol generating matrix segment in the related art, which is also detrimental to the uniformity of the puff.

[0079] See also Figures 1 to 12 The present invention provides an aerosol-generating substrate segment 10, which includes at least two substrate strips 100. The substrate strips 100 are capable of generating aerosols when heated. For example, each substrate strip 100 is discrete, that is, each substrate strip 100 can be independent of each other. The independent substrate strips 100 are arranged in parallel to form a bundle, such as a cylindrical bundle, a square bundle, a sheet bundle, or an elliptical bundle.

[0080] All substrate strips 100 within the aerosol-generating substrate segment 10 have at least two densities. Exemplarily, at least two of the substrate strips 100 have different densities, or all of the substrate strips 100 have two densities, with a portion having a first density and the remainder having a second density, or all of the substrate strips 100 have three densities, with a first portion having a first density, a second portion having a second density, and the remainder having a third density.

[0081] Matrix strips 100 of varying densities have varying active substance loadings and porosities. For example, a matrix strip 100 with a relatively high density has a relatively high active substance loading, a relatively low porosity, a relatively high heat capacity, and a relatively high energy requirement for aerosol generation. A matrix strip 100 with a relatively low density has a relatively low active substance loading, a relatively high porosity, a relatively low heat capacity, and a relatively low energy requirement for aerosol generation. It should be noted that the active substance herein refers to the material or component that generates the aerosol and various stimulants.

[0082] The substrate strips 100 are arranged in parallel in a bundle and extend from one end of the aerosol-generating substrate segment 10 to the other end.

[0083] Exemplarily, the matrix strips 100 can be in a linear structure extending in a straight line, with the extension direction of the matrix strips 100 being approximately parallel to the extension direction of the aerosol generating matrix segment 10. Due to manufacturing and assembly processes and precision, it is difficult to achieve absolute parallelism between the matrix strips 100. There may be a certain angle of inclination, or some matrix strips may be bent. Therefore, in some embodiments, the angle between the extension direction of each matrix strip 100 and the central axis of the aerosol generating matrix segment 10 is no more than 10 degrees. The central axis refers to the central symmetry axis of the aerosol generating matrix segment 10. For example, when the aerosol generating matrix segment 10 is cylindrical, the central axis is the central symmetry axis passing through the center of the cross-section. When the aerosol generating matrix segment 10 is square, the central axis is its body symmetry axis. A cross section refers to a section perpendicular to the central axis.

[0084] The direction in which the matrix strips 11 extend can be defined as a first direction. Parallel arrangement means that the projections of the matrix strips 11 at least partially overlap, with the projection plane being parallel to the first direction. In other words, the matrix strips 11 are not connected end-to-end along the first direction, but are generally arranged side by side. In other words, the matrix strips are generally parallel and approximately parallel to the central axis of the aerosol-generating matrix segment 10.

[0085] For example, in some embodiments, at least two parallel matrix strips 100 extend along a first direction. For example, the matrix strips 100 may be in a linear structure along the first direction.

[0086] In some embodiments, each matrix strip 100 extends along the first direction. In other words, all matrix strips 100 extend along the first direction.

[0087] In some embodiments, the angle between the extension direction of each matrix strip 100 and the central axis of the aerosol-generating matrix segment 10 is no greater than 10 degrees.

[0088] In some embodiments, the angle between the extension direction of each substrate strip 100 and the central axis of the aerosol-generating substrate segment 10 is less than 10 degrees. Alternatively, the substrate strip 100 may be partially curved, but the overall extension trend of the substrate strip is from one end to the other end of the aerosol-generating substrate segment 10. Exemplarily, the inclination angle of each substrate strip 100 with respect to the first direction is 1°, 2°, 3°, 4°, 5°, or 10°, etc.

[0089] It should be noted that if the matrix strip 100 is a rotating body, the center line of the matrix strip 100 is the axis of the rotating body. Therefore, in some embodiments, the angle between the center line of each matrix strip 100 and the center axis of the aerosol generating matrix segment 10 is less than or equal to 10°.

[0090] In one embodiment, the first direction is parallel to the axial direction, ie the angle between the centerline of the substrate strip 100 and the center axis of the aerosol-generating substrate segment 10 is 0 degrees.

[0091] Arranged in parallel means that each matrix strip 100 is not connected end to end along the same direction, but at least part of each matrix strip 100 is arranged side by side. For example, with the plane parallel to the first direction as the projection surface, the projections of each matrix strip 100 at least partially overlap. In other words, each matrix strip 100 is not connected end to end in sequence along the first direction, but is roughly arranged side by side. It should be noted that, in some other embodiments, the aerosol generating matrix segment 10 can also include at least two sections of matrix strips in the first direction.

[0092] The aerosol generating matrix segment 10 provided in the embodiment of the present application has at least two matrix strips 100 with different densities. With such a design, during the heating process of the aerosol generating matrix segment 10, the matrix strips 100 with different densities have different effective material loadings, heat capacities, and porosities, resulting in different heat transfer efficiencies during heating and different energies required to generate aerosols. For a heating component using infrared heating, different porosities also have different effects on infrared penetrability. In the initial stage of heating, the matrix strips 100 with relatively low density have relatively low heat capacity, so the energy required to generate aerosols is relatively small. In addition, the matrix strips with relatively low density are more conducive to infrared light penetration heating and have better infrared penetrability. Compared with the matrix strip 100 with relatively high density, although the temperature of the heating component in the front section of puffing is not high enough, the matrix strip 100 with relatively low density can more easily produce more sufficient aerosol in the front section of puffing. In the middle and back sections of puffing, although the aerosol produced by the matrix strip 100 with relatively low density will show a certain attenuation, the temperature of the heating environment is relatively high at this time, and the matrix strip 100 with relatively high density can produce more sufficient aerosol. Therefore, through the cooperation of multiple matrix strips 100 with different densities, the amount of aerosol released can be roughly consistent in the front, middle and back sections of puffing, thereby improving the consistency of aerosol release, thereby improving the consistency of puffing, and further improving the puffing experience.

[0093] In one embodiment, the cross-sectional size and / or density of a single matrix strip 100 at any two positions along its own extension direction are the same.

[0094] In one embodiment, the cross-sectional size and / or density of a single matrix strip 100 at any two positions along the first direction are the same.

[0095] It should be noted that, in the embodiment of the present application, a plane perpendicular to the first direction is taken as a cross section.

[0096] The cross-sectional dimensions of any two locations of a single substrate strip 100 along the first direction are the same, meaning that, with a plane perpendicular to the first direction as the cross-section, the cross-sectional dimensions of any two locations of the single substrate strip along the first direction are the same. For example, the single substrate strip has the same cross-sectional shape and extends along the first direction to form a pattern.

[0097] Exemplarily, the density of any two positions of a single matrix strip 100 along the first direction being the same means that the density of the single matrix strip along the first direction is the same everywhere, and the mass of the single matrix strip is uniformly distributed.

[0098] Taking the plane perpendicular to the first direction as the cross section, the cross-sectional size refers to the size used to define the outer contour of the cross section of the matrix strip. For example, if the cross section of the matrix strip is circular, the cross-sectional size is the diameter of the cross section of the matrix strip. If the cross section of the matrix strip is square, the cross-sectional size is the maximum length of the cross section of the matrix strip. If the cross section of the matrix strip is a shape other than circular and square, the cross-sectional size is the maximum size of the cross section of the matrix strip, that is, the distance between the two farthest points on the outer contour of the cross section.

[0099] For example, in one embodiment, the equivalent diameter and density of a single matrix strip 100 at any two positions along the first direction are the same, and the equivalent diameters of all matrix strips 100 are equal. The matrix strips 100 can be produced using the same mold, etc., effectively reducing manufacturing difficulty and improving production efficiency.

[0100] It should be noted that the equivalent diameter herein refers to the ratio of four times the area of ​​the cross-sectional shape of the matrix strip 100 to its perimeter, with the cross-section taken along a plane perpendicular to the first direction. For example, if the cross-sectional shape is a regular quadrilateral, the equivalent diameter is the ratio of four times the area of ​​the regular quadrilateral to the perimeter of the regular quadrilateral. For another example, if the cross-sectional shape is a circle, the equivalent diameter is the diameter of the circle itself.

[0101] In some embodiments, the cross section of the matrix strip 100 is in the plane perpendicular to the extension direction of the matrix strip 100 and is in the shape of at least one of polygon, ellipse, petal, circle, waist circle, gear and special shape.

[0102] For example, the aerosol-generating substrate segment 10 may be cylindrical and extend along the first direction. With a plane perpendicular to the first direction as the projection plane, the projected outline of the cylindrical aerosol-generating substrate segment 10 may be polygonal (including but not limited to triangle, prism, and square), elliptical, petal-shaped, circular, round, gear-shaped, or irregularly shaped, where irregularly shaped refers to an irregular or asymmetrical shape.

[0103] In one embodiment, in a cross section perpendicular to the extension direction of the matrix strips 100 , the cross-sectional dimensions of all matrix strips 100 are the same.

[0104] In one embodiment, in a cross section perpendicular to the first direction, the cross-sectional dimensions of all matrix strips 100 are the same. Figures 1 to 10 , the equivalent diameter of the cross section of all matrix bars 100 is all identical. Exemplary, the cross-sectional shape of all matrix bars 100 is identical.Like this, each matrix bar 100 can adopt equipment such as identical mould to produce, then a plurality of matrix bars 100 are merged into bundle.Effectively reduce manufacturing difficulty, improve production efficiency.

[0105] In one embodiment, please refer to Figures 1 to 6 The aerosol-generating substrate segment 10 includes a wrapping layer 200, which is wound to form a receiving space within which all substrate strips 100 are received. The wrapping layer 200 is used to bind all substrate strips 100, allowing all substrate strips 100 to be assembled into a single unit, such as a cylindrical bundle or a square bundle. For example, all substrate strips 100 can be tightly wrapped and assembled into a single unit structure by the wrapping layer 200.

[0106] The material of the packaging layer 200 includes, but is not limited to, one or more combinations of plant sheets, fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE, and PBAT.

[0107] It should be noted that, in this application, the projected contour shape of the aerosol-generating substrate segment 10 refers to the outer contour shape of the projection of the aerosol-generating substrate segment 10, taking the plane perpendicular to the first direction as the projection plane. For example, the projected contour shape of the aerosol-generating substrate segment 10 may be the outer contour shape of the projection of the packaging layer 200.

[0108] Illustratively, the heating assembly may be disposed within the interior of the aerosol-generating substrate segment 10 to provide central heating of the aerosol-generating substrate segment 10. Central heating refers to the heating assembly being inserted into the interior of the aerosol-generating substrate segment 10 to heat the aerosol-generating substrate segment 10 radially from the inside out. The heating assembly may be disposed at the periphery of the aerosol-generating substrate segment 10 to provide circumferential heating of the aerosol-generating substrate segment 10. Circumferential heating refers to the heating assembly being disposed at the periphery of the aerosol-generating substrate segment 10 to heat the aerosol-generating substrate segment 10 radially from the outside in.

[0109] It should be noted that the radial direction is perpendicular to the first direction and refers to the direction of a ray passing through the centerline of the aerosol-generating substrate segment 10 in a plane perpendicular to the first direction. The inner direction refers to the side radially closer to the centerline, while the outer direction refers to the opposite of the inner direction, which is the side radially farther from the centerline.

[0110] In one embodiment, please refer to Figures 1 to 4 , a plurality of matrix bars 100 are constructed into at least two radially nested sets 100a layer by layer, and the density of each matrix bar 100 of single set 100a is all identical, and the density difference of the matrix bar 100 of at least two sets 100a is.That is to say, the density of the matrix bar 100 in the same set 100a is identical.When only having two sets 100a, the density of the matrix bar 100 in the different sets 100a is unequal, and when three and more sets 100a are arranged, there is at least one set 100a and matrix bar 100 density difference of other set 100a, but among above-mentioned other set 100a, matrix bar 100 density in each set 100a can be identical, also can be different.

[0111] Exemplarily, one of the radially innermost assembly 100a and the radially outermost assembly 100a serves as a thermal contact layer. The thermal contact layer faces the heating assembly to receive heat from the heating assembly. In a central heating mode, the radially innermost assembly 100a serves as the thermal contact layer. In a circumferential heating mode, the radially outermost assembly 100a serves as the thermal contact layer.

[0112] If periphery heating is used, heat transfer occurs radially from the periphery to the center. If central heating is used, heat transfer occurs radially from the center to the periphery. Regardless of whether periphery heating or central heating is used, the actual heating experienced by substrate strips 100 in different sets 100a may vary due to differences in distance from the heating assembly and the influence of the substrate strips' 100 heat transfer efficiency.

[0113] In this embodiment, at least two sets 100a are nested radially layer by layer, and the matrix strips 100 in a single set 100a are approximately at the same distance from the heating component. The density of the matrix strips 100 in at least two sets 100a is different. In this way, the different distances between the matrix strips 100 and the heating component and the heat transfer efficiency of the matrix strips 100 are taken into account. While taking into account multiple variables, the aerosol can be evenly released in the front, middle and back sections of the suction.

[0114] A single set 100a may include one or more substrate strips 100. For example, a single set 100a may include two, three, ten, fifteen, or more substrate strips 100.

[0115] For example, the innermost set 100a may include at least two substrate strips 100, and one substrate strip 100 of the innermost set 100a is located at the center of the aerosol generating substrate segment 10. This design facilitates assembly stability and simplicity between the substrate strips 100.

[0116] Taking the number of sets 100a as two examples, in one embodiment, refer to Figure 1 and Figure 6 At least one matrix strip 100 constitutes a first set, and at least one matrix strip 100 constitutes a second set. The second set surrounds the periphery of the first set. Each matrix strip 100 of the first set is a first density strip 101, and each matrix strip 100 of the second set is a second density strip 102. The density of the first density strip 101 is different from the density of the second density strip 102.

[0117] For example, the first assembly forms a thermal contact layer, with the density of the first density strips 101 being lower than that of the second density strips 102. In this case, the heating assembly is inserted into the first assembly, using central heating to heat the aerosol-generating matrix segment 10. During the initial puff, the temperature near the heating assembly is relatively high, while the density of the first density strips 101 is relatively low. Consequently, less heat is required to generate aerosol, and heat transfer is faster within the low-density matrix strips 100. For some applications utilizing infrared heating, infrared radiation penetrates more efficiently outward, allowing the first density strips 101 to quickly generate sufficient aerosol. As heating time increases, during the middle and later stages of the puff, although the aerosol in the first density strips 101 gradually decays, heat is fully transferred to the outer second density strips 102, which are adequately heated and continuously generate sufficient aerosol. This improves the consistency and stability of aerosol release while achieving rapid aerosol release, enhancing the overall puffing experience. On the other hand, the first density strip 101 has a lower density, which can reduce the insertion resistance and facilitate the convenient insertion of the heating component into the aerosol generating matrix segment 10. Furthermore, it can also reduce the first density strip 101 that is directly supported by the heating component from being inserted upside down into the functional segment 20 adjacent to the aerosol generating matrix segment 10 (if the matrix strip 100 is inserted upside down into the functional segment 20, the heated medium is relatively reduced, the consistency and stability of the aerosol release are easily affected, and the inhalation resistance may also be affected).

[0118] Exemplarily, the second set is a thermal contact layer, and the density of the second density strip 102 is lower than that of the first density strip 101. At this time, the heating component surrounds the periphery of the second set and heats the aerosol-generating matrix segment 10 by circumferential heating. On the one hand, in the front section of the puff, the temperature near the heating component is relatively high, and the heat transfer rate in the low-density matrix strip 100 is relatively fast. The density of the second density strip 102 is relatively low, the heat capacity is small, and the heat required to generate aerosol is less. Therefore, the second density strip 102 can quickly generate sufficient aerosol to meet the smoke volume and rapid smoke output in the front section of the puff. As the heating time increases, in the middle and back sections of the puff, the heat is fully conducted to the first density strip 101 in the center, and the first density strip 101 is fully heated and continuously generates sufficient aerosol. In this way, under the premise of achieving rapid release of aerosol, the consistency and stability of aerosol release are improved, thereby enhancing the overall puffing experience.

[0119] In one embodiment, the density of the first density strips 101 is lower than that of the second density strips 102. The first density strips 101 are located inside the second density strips 102. Corresponding to central heating, the ratio of the first density strips 101 to the second density strips 102 is 1:15 to 1:3. In other words, the second density strips 102 are 3 to 15 times the number of the first density strips 101. For example, the ratio of the first density strips 101 to the second density strips 102 is 1:3, 1:4, 1:5, 1:6, 1:10, or 1:15, etc. In this way, an adaptive design can be made based on the characteristics of the central heating heating component, greatly improving the consistency and stability of aerosol release.

[0120] In one embodiment, the density of the second density strips 102 is lower than that of the first density strips 101. The second density strips 102 are located on the periphery of the first density strips 101. Corresponding to the periphery heating method, the ratio of the second density strips 102 to the first density strips 101 is 5:1 to 1:5. For example, the ratio of the second density strips 102 to the first density strips 101 is 1:5, 1:4, 1:3, 1:2, 1:1, 2:1, or 5:1. In this way, adaptive design can be made based on the characteristics of the periphery heating heating component, greatly improving the consistency and stability of aerosol release.

[0121] In one embodiment, please refer to Figures 2 to 4 The set 100a includes a first set, a second set, and a third set that are nested layer by layer from the inside to the outside in the radial direction. That is, the second set surrounds the outer periphery of the first set, and the third set surrounds the outer periphery of the second set.

[0122] The matrix strips 100 of the first set are first density strips 101, the matrix strips 100 of the second set are second density strips 102, and the matrix strips 100 of the third set are third density strips 103. The density of the first density strips 101 and the density of the third density strips 103 are different from the density of the second density strips 102.

[0123] Exemplarily, one of the first and third sets is a thermal contact layer. For example, if the first set is a thermal contact layer, central heating is adopted. If the third set is a thermal contact layer, circumferential heating is adopted.

[0124] In this embodiment, regardless of whether central heating or circumferential heating is adopted, one of the first set and the third set is closer to the heating component, the other of the first set and the third set is farther away from the heating component, and the second set is sandwiched between the first set and the third set. Compared with the first density strip 101 and the third density strip 103, the second density strip 102 is at a moderate distance and plays a role in transferring heat. The density of the first density strip 101 and the density of the third density strip 103 are different from the density of the second density strip 102, so as to take into account the distance between the matrix strip 100 and the heating component, the porosity of the matrix strip 100, the heat transfer efficiency of the matrix strip 100, and the aerosol release characteristics of different sets before, during and after puffing, so that the aerosol can be released evenly before, during and after puffing.

[0125] In the prior art, the aerosol-generating matrix segment has a certain radial dimension. In the latter part of the puff, the temperature of the heating element cannot be too high to prevent the aerosol-generating matrix from being burned. This limits the ability to transfer heat radially, and the aerosol-generating matrix farther from the heating element can absorb less heat. This leads to a decrease in aerosol volume and effective substance satisfaction in the latter part of the puff (generally the last three or so puffs). The prior art generally avoids this problem by increasing the heating element's temperature in the latter part of the puff. However, using a higher heating temperature can easily cause the aerosol-generating matrix near the heating element to be burned, affecting the taste and not being conducive to energy conservation.

[0126] In one embodiment, please refer to Figure 2 , the density of the first density strip 101 and the density of the third density strip 103 are both less than the density of the second density strip 102 .

[0127] In this embodiment, one of the first density strip 101 and the third density strip 103 is closer to the heating assembly, the other one of the first density strip 101 and the third density strip 103 is farther away from the heating assembly, and the second density strip 102 is located between the first density strip 101 and the third density strip 103. One of the first density strips 101 and the third density strips 103 is closer to the heating component, and is used to quickly generate sufficient aerosol in the early stage of puffing, meeting the need for rapid aerosol release in the early stage of puffing; the second density strip 102 has a relatively high density to meet the need for continuous release of sufficient aerosol in the middle and late stages, thereby compensating for the attenuation of the aerosol release capacity of the first density strip 101 or the third density strip 103; the other of the first density strips 101 and the third density strip 103 is further away from the heating component. Due to its relatively low density, the energy required to release the aerosol is also relatively small, thus compensating for the shortcoming that the heat from the heating component is not transferred to the outermost layer of the aerosol generating matrix segment 10. This allows the outermost matrix strips of the aerosol generating matrix segment 10 to be fully heated to generate sufficient aerosol. In addition, the low density is also conducive to the penetration of infrared rays, avoiding the problem of reduced aerosol volume and effective substance satisfaction in the late stage of puffing. Therefore, the aerosol generating matrix segment 10 of this structure improves the consistency of smoke volume and puff taste in the early, middle and late stages of puffing.

[0128] In one embodiment, please refer to Figure 2 The density of the first density strips 101 and the density of the third density strips 103 are the same. This provides the aerosol-generating substrate segment 10 with excellent versatility, adapting to both central heating and peripheral heating. In another embodiment, the density of the first density strips 101 and the density of the third density strips 103 are different. In this way, the density of the first density strips 101 and the density of the second density strips 102 can be designed based on heat transfer efficiency (e.g., heat conduction efficiency and / or heat diffusion efficiency, etc.).

[0129] The density of the first density strip 101 and the density of the second density strip 102 can be designed according to the requirements. In one embodiment, the density of the first density strip 101 and the density of the second density strip 102 are 400 mg / cm 3 -1300mg / cm 3 The density of the first density strip 101 and the density of the second density strip 102, the other of which is 900 mg / cm 3 -2000mg / cm 3 For example, the density of the first density strip 101 is 400 mg / cm 3 -1300mg / cm 3 (including 400mg / cm 3 and 1300mg / cm 3 ), the density of the second density strip 102 is 900 mg / cm 3-2000mg / cm 3 (including 900mg / cm 3 and 2000mg / cm 3 For another example, the density of the second density strip 102 is 400 mg / cm 3 -1300mg / cm 3 (including 400mg / cm 3 and 1300mg / cm 3 ), the density of the first density strip 101 is 900 mg / cm 3 -2000mg / cm 3 (including 900mg / cm 3 and 2000mg / cm 3 With such a design, the density of the first density strip 101 and the density of the second density strip 102 can better adapt to the heating efficiency and heat transfer requirements of the heating component.

[0130] The density of the third density strip 103 can be designed according to the requirements. In one embodiment, the density of the third density strip 103 is 400 mg / cm 3 -1300mg / cm 3 (including 400mg / cm 3 and 1300mg / cm 3 With this design, when the third density strips 103 are closer to the heating element than the first density strips 101, the density of the third density strips 103 can quickly and sufficiently release aerosol in the early stage of puffing; when the third density strips 103 are farther away from the heating element than the first density strips 101, the density of the third density strips 103 can sufficiently release aerosol in the later stage of puffing under lower temperature conditions.

[0131] It is understood that the density of the first density strip 101 and the density of the third density strip 103 can both belong to the same numerical range. For example, the density of the first density strip 101 and the density of the third density strip 103 can both be 400 mg / cm 3 -1300mg / cm 3 .

[0132] In one embodiment, please refer to Figure 3, the density of the matrix strips 100 of multiple sets 100a increases or decreases radially from the inside to the outside. For example, the density of the matrix strips 100 of multiple sets 100a increases radially from the inside to the outside. This makes it easy to adapt to the central heating method, and heat is transferred from the inside to the outside. For another example, the density of the matrix strips 100 of multiple sets 100a decreases radially from the inside to the outside. This makes it easy to adapt to the circumferential heating method, and heat is transferred from the outside to the inside. With this design, the distance between the matrix strips 100 with the lowest density and the heating component is the smallest, and the matrix strips 100 with the lowest density can quickly generate sufficient aerosol in the front section of the suction, and the adjacent matrix strips 100 begin to fully generate aerosol. As the suction continues, the heat energy diffuses radially layer by layer, and the high-density matrix strips 100 continue to fully generate aerosol. The aerosol release is relatively uniform during the entire heating process, which improves the suction experience. The aerosol generating matrix segment 10 of this structure may be more suitable for infrared heating, and the gradual density change is conducive to the layer-by-layer penetration heating of infrared light.

[0133] In one embodiment, a set 100a in which the density of the matrix strips 100 is a first value is a first group, and a set 100a in which the density of the matrix strips 100 is a second value is a second group. The first value and the second value are different, and a plurality of first groups and a plurality of second groups are alternately arranged in the radial direction. In other words, a second group is arranged between two radially adjacent first groups. The first value and the second value can both be range values ​​(i.e., a numerical range); or, the first value and the second value can both be point values ​​(i.e., a specific numerical value). Such a design makes it possible for the amount of aerosol produced by different numbers of puffs during the puffing process to be consistent, so that the amount of puffed puffs tends to be consistent, thereby improving the consistency of release.

[0134] In one embodiment, the density difference between the matrix strips 100 of two adjacent sets 100a is 50 mg / cm 3 -300mg / cm 3 (including 50mg / cm 3 and 300mg / cm 3 For example, the density difference between the matrix strips 100 of two adjacent sets 100a is 50 mg / cm 3 、60mg / cm 3 、100mg / cm 3 , 200mg / cm 3 or 300mg / cm 3 Etc. With this design, the density difference between the matrix strips 100 of two adjacent sets 100a is moderate, which can adapt to the heat transfer rate of the matrix strips 100, the heating characteristics of the heating component, and the user's puffing habits, so that the amount of aerosol produced by different puffs during the puff process tends to be consistent, achieving a consistent concentration from puff to puff, and improving the consistency of aerosol release.

[0135] The density difference refers to the absolute value of the difference between the average densities of the matrix strips 100 of two adjacent sets 100a.

[0136] In one embodiment, the density difference between any two matrix strips 100 is 50 mg / cm 3 -600mg / cm 3 (including 50mg / cm 3 and 600mg / cm 3 For example, the density difference between the matrix strips 100 of two adjacent sets 100a is 50 mg / cm 3 、150mg / cm 3 , 400mg / cm 3 , 500mg / cm 3 or 600mg / cm 3 The aerosol-generating substrate segment 10 has a certain equivalent diameter range, and the density difference between any two substrate strips 100 is 50 mg / cm 3 -600mg / cm 3 The density difference between any two matrix strips 100 is moderate, which can adapt to the heat transfer rate of the matrix strips 100, the heating characteristics of the heating component and the user's puffing habits, so that the amount of aerosol generated by different numbers of puffs during the puffing process tends to be consistent, achieving a consistent concentration for each puff and improving the consistency of aerosol release.

[0137] In one embodiment, the density difference between any two matrix strips 100 in the set 100a is 50 mg / cm 3 -600mg / cm 3 (including 50mg / cm 3 and 600mg / cm 3 ).

[0138] In one embodiment, the density of the matrix strip 100 is 400 mg / cm 3 -2000mg / cm 3 (including 400mg / cm 3 and 2000mg / cm 3 The density of the matrix strip 100 is 400 mg / cm 3 -2000mg / cm 3 , which can take into account the effective material load and heat conduction requirements of the matrix strip 100, so that the amount of aerosol generated by different numbers of puffs during the puffing process tends to be consistent, achieving consistent concentration from puff to puff, and improving release consistency.

[0139] In one embodiment, the equivalent diameter of the cross section of substrate strip 100 is 0.4mm-7mm (comprising 0.4mm and 7mm). Exemplary, the equivalent diameter of substrate strip 100 is 0.4mm, 0.55mm, 0.8mm, 1mm, 1.3mm, 2mm, 4mm, 5mm, 6mm or 7mm. More preferably, the equivalent diameter of substrate strip 100 is 0.55mm~3.5mm (comprising 0.55mm and 3.5mm), and more preferably, the equivalent diameter of substrate strip 100 is 0.8mm~1.5mm (comprising 0.8mm and 1.5mm). Aerosol generation substrate segment 10 has certain equivalent diameter range, and the equivalent diameter of substrate strip 100 adopts 0.4mm-7mm, so that there is moderate substrate strip 100 quantity and effectively controls the interval space size between substrate strip 100, i.e. controls the size of the space of aerosol generation substrate segment 10.

[0140] In one embodiment, the dimension of the matrix strip 100 along its own extension direction is 6 mm-40 mm (including 6 mm and 40 mm).

[0141] In one embodiment, the dimension of the substrate strip 100 along the first direction is 6 mm to 40 mm (inclusive). For example, the dimension of the substrate strip 100 along the first direction is 6 mm, 10 mm, 12 mm, 20 mm, 30 mm, 35 mm, or 40 mm, etc. This design allows substrate strips of different lengths to be compatible with different aerosol generating devices while ensuring the effective substance loading capacity of the aerosol generating substrate segment 10.

[0142] In one embodiment, the filling rate of all matrix strips 100 in the aerosol generating matrix segment 10 is 40%-90% (including 40% and 90%). Exemplarily, the filling rate of all matrix strips 100 in the aerosol generating matrix segment 10 is 40%, 50%, 60%, 70% or 90%, etc. With such a design, the aerosol generating matrix segment 10 has a suitable suction amount and a suitable suction resistance for the user, so as to avoid excessive effective substance load remaining in the aerosol generating matrix segment 10 after the puffing is completed, causing waste, and to avoid insufficient effective substance load, resulting in a poor puffing experience. In addition, the bulk density of the matrix strips 100 in the aerosol generating matrix segment 10 is 500 mg / cm 3 -1400 mg / cm 3 (including 500mg / cm 3 and 1400mg / cm 3 ). Exemplarily, the bulk density of the matrix strips 100 in the aerosol-generating matrix segment 10 is 500 mg / cm 3 、600mg / cm 3 、800mg / cm 3 、1000mg / cm3 、1300mg / cm 3 or 1400mg / cm 3 etc.

[0143] It should be noted that the filling rate is the percentage of the ratio of the total volume of all matrix strips 100 to the volume of the accommodation space in the aerosol generating matrix segment 10.

[0144] The bulk density of the substrate strips 100 is the density calculated by dividing the mass of all substrate strips 100 in an aerosol-generating substrate segment 10 by the total volume of the aerosol-generating substrate segment 10 .

[0145] In one embodiment, part of the matrix strip 100 is defined as the first unit, and the remaining part of the matrix strip 100 is defined as the second unit. In other words, all matrices are divided into the first unit and the second unit.

[0146] In one embodiment, the density of the matrix strips 100 of the first unit is the first density interval, and the density of the matrix strips 100 of the second unit is the second density interval, and the first density interval is less than the second density interval. In other words, all matrix strips 100 are classified according to the first density interval and the second density interval, and the density of the matrix strips 100 in the first density interval is the first unit, and the density of the matrix strips 100 in the second density interval is the second unit. The volume ratio of the first unit and the second unit is 1:10 to 5:1 (including 1:10 and 5:1). Exemplarily, the volume ratio of the first unit and the second unit can be 1:10, 1:5, 1:1, 2:1, 3:1 or 5:1, etc. In this way, all matrix strips 100 are reasonably distributed in the first density interval and the second density interval, so that the matrix strips 100 of different densities are reasonably arranged and the consistency of the aerosol release amount is improved.

[0147] It should be noted that the first density interval and the second density interval are both range values.

[0148] In one embodiment, the density of the matrix strips 100 of the first unit is a first numerical value, and the density of the matrix strips 100 of the second unit is a second numerical value, and the first numerical value is less than the second numerical value. In other words, all matrix strips 100 are classified according to the first numerical value and the second numerical value, and the matrix strips 100 with a density of the first numerical value belong to the first unit, and the matrix strips 100 with a density of the second numerical value belong to the second unit. The volume ratio of the first unit and the second unit is 1:10 to 5:1 (including 1:10 and 5:1). Exemplary, the volume ratio of the first unit and the second unit can be 1:10, 1:5, 1:1, 2:1, 3:1 or 5:1, etc. Like this, all matrix strips 100 are reasonably distributed in the first numerical value and the second numerical value, so that the matrix strips 100 of different densities are reasonably arranged, and the consistency of the aerosol release amount is improved.

[0149] It should be noted that the first value and the second value are both point values.

[0150] In one embodiment, a portion of the matrix strips 100 is defined as a first unit, and the remaining matrix strips 100 are defined as a second unit. The density of the matrix strips 100 in the first unit is a first value, and the density of the matrix strips 100 in the second unit is a second value, where the first value is less than the second value. The matrix strips 100 in the first and second units are evenly distributed or randomly distributed. The matrix strips 100 in the first and second units are evenly distributed, and the low-density matrix strips 100 and the high-density matrix strips 100 can be mixed and evenly distributed in the aerosol-generating matrix segment 10. The entire aerosol-generating matrix segment 10 can be evenly heated, fully utilizing the respective characteristics of the low-density matrix strips 100 and the high-density matrix strips 100, improving the consistency and stability of aerosol release, and enhancing the overall puffing experience.

[0151] It can be understood that the uniform distribution of the first unit and the second unit includes that the number of the matrix strips 100 in the first unit is the same as the number of the matrix strips 100 in the second unit, and they are distributed separately and at intervals.

[0152] It should be noted that the arrangement of the plurality of matrix strips 100 is not limited to the arrangement described above. In some embodiments, the plurality of matrix strips 100 may be arranged in other predetermined arrangements or randomly, depending on design requirements. For example, the plurality of matrix strips 100 may be randomly arranged within the aerosol generating matrix segment 10, with all matrix strips 100 having at least two densities.

[0153] In one embodiment, please refer to Figures 1 to 10 , with the plane perpendicular to the first direction of the matrix strip 100 as the cross section, the cross section of the matrix strip 100 is in the shape of a polygon (see Figure 9 ), oval (see Figure 8 ), petal-shaped (see Figure 10 ), at least one of a circle, a waisted circle, a gear shape, and a special shape. Alternatively, two or more shapes may be mixed to vary the porosity and airflow path. Specifically, the petal shape is a closed figure formed by combining a circle and multiple arcs surrounding the circle.

[0154] A rounded shape is a closed figure formed by bisecting a circle through its center into two semicircular arcs, translated in opposite directions, and connecting the endpoints of the two semicircular arcs with two parallel lines of equal length. A special shape refers to any symmetrical or asymmetrical shape other than those listed above. Polygons include, but are not limited to, triangles, prisms, and squares.

[0155] In one embodiment, please refer to Figures 1 to 5 as well as Figures 8 to 10, the substrate strips 100 in the aerosol generating substrate segment 10 may all have the same cross-sectional shape; see Figure 6 to Figure 5 , two or more different cross-sectional shapes may also be used.

[0156] It should be noted that, in the embodiments of the present application, unless otherwise specified, the cross-sections are planes perpendicular to the first direction.

[0157] The number of substrate strips 100 in each aerosol generating substrate segment 10 can be set as needed. For example, in one embodiment, see Figures 1 to 10 The number of substrate strips 100 is 2-45 (inclusive). Exemplarily, the number of substrate strips 100 is 2, 5, 8, 10, 15, 20, 35, 36, 37, 40, or 45, etc. Since the aerosol-generating substrate segment 10 is typically used in conjunction with an aerosol-generating device, the size of the aerosol-generating substrate segment 10 is limited. Therefore, the number of substrate strips 100 is 2-45. The size of the substrate strips 100 is moderate, so as to balance the structural strength and quality requirements of the substrate strips 100.

[0158] Preferably, the number of matrix strips 100 is 20-40. That is, the number of matrix strips 100 in each aerosol-generating matrix segment 10 can be 20-40. This ensures both an appropriate aerosol release amount and an appropriate draw resistance to meet the user's puffing habits. More importantly, given a certain size of aerosol-generating matrix segment, 20-40 matrix strips 100 are more suitable for designing into 2-4 nearly annular ring structures, which is more conducive to specific differentiated designs.

[0159] In one embodiment, please refer to Figure 11 and Figure 12 In the cross section of the aerosol-generating substrate segment 10 perpendicular to the extension direction of the substrate strip 100 , the cross section includes at least two different sizes of the substrate strip 100 cross sections.

[0160] In one embodiment, please refer to Figure 11 and Figure 12 In a cross section of the aerosol-generating substrate segment 10 perpendicular to the first direction, the cross sections of the substrate strips 100 include at least two cross sections of substrate strips 100 of different sizes.

[0161] The cross-sections of the matrix strips 100 comprising at least two different sizes means that at least some of the matrix strips 100 have cross-sectional sizes different from those of other matrix strips 100. For example, see Figure 11 and Figure 12The matrix strip 100 includes at least a first matrix strip 111 and a second matrix strip 112, wherein the cross-sectional dimensions of the second matrix strip 112 are greater than the cross-sectional dimensions of the first matrix strip 111. In other words, the matrix strip 100 may consist of only the first matrix strip 111 and the second matrix strip 112, or may include matrix strips 100 having other cross-sectional dimensions in addition to the first matrix strip 111 and the second matrix strip 112.

[0162] The first matrix strip 111 and the second matrix strip 112 are both matrix strips 100 , but are distinguished in name only for the convenience of description.

[0163] In this embodiment, in the cross-section perpendicular to the first direction, the cross-sectional dimensions of at least some of the matrix strips 100 are different, that is, the aerosol-generating matrix segment 10 includes both matrix strips 100 with relatively large cross-sectional dimensions and matrix strips 100 with relatively small cross-sectional dimensions. Therefore, by coordinating matrix strips 100 with different cross-sectional dimensions, the filling rate, density and porosity of the aerosol-generating matrix segment 10 can be controlled, which is conducive to matching different heating components and heating methods. For example, the aerosol-generating matrix segment 10 with a high porosity is more suitable for heating by an infrared heating component, and infrared light can more easily penetrate and reach the interior of the aerosol-generating matrix segment 10, thereby improving the heating efficiency of the heating component, improving the uneven heating of the aerosol-generating matrix segment 10, improving the uniformity of puff by puff, and thus improving the puffing experience.

[0164] In one embodiment, please refer to Figure 11 and Figure 12 , the cross-sectional dimension of the matrix strip 100 with relatively low density is smaller than the cross-sectional dimension of the matrix strip 100 with relatively high density. In other words, among any two matrix strips 100, the cross-sectional dimension of the matrix strip 100 with relatively low density is smaller than the cross-sectional dimension of the matrix strip 100 with relatively high density.

[0165] In this embodiment, the cross-sectional dimensions of the matrix bar 100 with relatively small density is also relatively small, so that the effective substance of load is relatively few, and heat capacity is also relatively small, and produces aerosol and needs to provide relatively small energy.The cross-sectional dimensions of the matrix bar 100 with relatively large density is also relatively large, so that the effective substance of load is relatively many, and heat capacity is also relatively large, and produces aerosol and needs to provide relatively large energy. Parameters such as effective substance loading, heat capacity and the porosity of the matrix bar 100 are regulated jointly by density and cross-sectional dimensions, and by the matrix bar of different densities and cross-sectional dimensions, different heating elements and heating methods can be mate to improve the heating efficiency of heating element.

[0166] See also Figures 13 and 14An embodiment of the present application provides an aerosol-generating product 1, which includes the aerosol-generating substrate segment 10, the functional segment 20 and the outer wrapping layer 30 in any embodiment of the present application.

[0167] The functional segment 20 is provided at one end of the aerosol generating substrate segment 10 along the first direction and provides at least one function of aerosol gathering, dilution, cooling, interception and compensation.

[0168] The functional section 20 includes a cooling section 21 and a filtering section 22 , wherein the cooling section 21 is located between the filtering section 22 and the aerosol generating substrate section 10 .

[0169] The filter section 22 is used to filter the aerosol. The cooling section 21 is used to cool the aerosol to prevent the aerosol from being too hot and burning the mouth to be inhaled.

[0170] For example, the filter section 22 can block particles of a target size, adjust the inhalation resistance, and reduce the temperature. For example, the filter section 22 can filter large particles similar to powdery substances. The aerosol filtered through the filter section 22 has a more consistent particle size and a more delicate taste.

[0171] The outer wrapping layer 30 wraps around the outer circumference of the functional segment 20 and the aerosol-generating substrate segment 10. The outer wrapping layer 30 is used to connect the aerosol-generating substrate segment 10 and the functional segment 20 into a whole.

[0172] Illustratively, the functional segment 20 is disposed at the proximal lip end of the aerosol-generating substrate segment 10 along the first direction.

[0173] The lip-proximal end refers to the end of the aerosol-generating article 1 that is close to the user when the user uses the aerosol-generating article 1 , and the lip-distal end refers to the end of the aerosol-generating article 1 that is away from the user when the user uses the aerosol-generating article 1 .

[0174] The aerosol-generating article 1 is configured for a user to inhale an aerosol generated by the aerosol-generating matrix segment 10. Illustratively, the lip-proximal end of the aerosol-generating article 1 faces the user. The user inhales, generating negative suction pressure. Under the action of the negative suction pressure, the aerosol generated by the aerosol-generating matrix segment 10 flows through the functional segment 20 and is delivered to the user.

[0175] For example, the outer wrapping layer 30 may be one layer, and may be two or more layers depending on the design requirements and manufacturing process of the aerosol generating article 1.

[0176] The materials of the cooling section 21 include but are not limited to one or more combinations of PE (polyethylene), PLA (Polylactic acid, also known as polylactide), PBAT (butylene adipate-co-terephthalate), PP (Polypropylene), acetate fiber, and acrylic fiber materials.

[0177] The material of the filter section 22 includes but is not limited to one or more combinations of PE, PLA, PBAT, PP, acetate fiber, and acrylic fiber materials.

[0178] The materials of the cooling section 21 and the filtering section 22 may be the same or different.

[0179] It should be noted that the aerosol-generating article 1 relies on the aerosol-generating substrate segment 10 to generate aerosol, and the functional segment 20 may not generate aerosol.

[0180] The material of the outer wrapping layer 30 is not limited, for example, including but not limited to one or more combinations of fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, PE, PBAT and the like.

[0181] The outer wrapping layer 30 can be a hollow tubular shape, and the aerosol generating matrix segment 10 and the functional segment 20 can be arranged in sequence in the hollow tubular outer wrapping layer 30 along the first direction. The outer wrapping layer 30 can also be a tipping paper, and the aerosol generating matrix segment 10 and the functional segment 20 are compounded into an integrated structure through the tipping paper.

[0182] Illustratively, the aerosol generating substrate segment 10 , the cooling segment 21 and the filtering segment 22 can all be coaxially arranged cylinders, and the first direction is the axial direction of the aerosol generating substrate segment 10 , the cooling segment 21 and the filtering segment 22 .

[0183] The first direction is the arrangement direction of the aerosol generating matrix segment 10, the cooling segment 21 and the filtering segment 22. The aerosol generating product 1 is inserted into the aerosol generating device along the first direction, and the aerosol generating product 1 is also taken out of the aerosol generating device along the first direction. The size of the aerosol generating matrix segment 10 along the first direction can be longer, shorter, or the same as the sizes in other directions.

[0184] For example, see Figures 1 to 5 When the appearance profile of the aerosol generating substrate segment 10 is cylindrical, the first direction is the axial direction of the aerosol generating substrate segment 10. It should be noted that the axial length of the aerosol generating substrate segment 10 may be smaller than its equivalent diameter.

[0185] For another example, when the appearance of the aerosol generating matrix segment 10 is a rectangular parallelepiped, the first direction is still the direction defined above, that is, the arrangement direction of the aerosol generating matrix segment 10, the cooling segment 21 and the filtering segment 22, or the direction of taking and placing the aerosol generating product 1 on the aerosol generating device. The first direction of the aerosol generating matrix segment 10 can be any direction of the length, width, and height of the rectangular parallelepiped.

[0186] In one embodiment, please refer to Figures 13 to 16 The aerosol generating article 1 includes a breathable membrane 40. The breathable membrane 40 has a breathable function.

[0187] In one embodiment, please refer to Figure 13 and Figure 14 At least one end of the aerosol generating substrate segment 10 is provided with a breathable membrane 40 .

[0188] In one embodiment, please refer to Figure 13 and Figure 14 , a breathable membrane 40 is provided at at least one end of the aerosol generating matrix segment 10 along the first direction. For example, a breathable membrane 40 is provided at one end of the aerosol generating matrix segment 10 along the first direction. Furthermore, a breathable membrane 40 is provided at one end of the aerosol generating matrix segment 10 near the cooling section 21. For another example, a breathable membrane 40 is provided at both ends of the aerosol generating matrix segment 10 along the first direction. Such a design can omit the selection of the assembly direction during the assembly process, facilitating assembly. The breathable membrane 40 can serve the functions of being breathable, facilitating the circulation of aerosols, and limiting the matrix strip 100, reducing the matrix strip 100 from slipping out along the first direction.

[0189] In one embodiment, please refer to Figure 13 and Figure 14 At least one end of the cooling section 21 is provided with a breathable membrane 40 .

[0190] In one embodiment, please refer to Figure 13 and Figure 14 At least one end of the cooling section 21 along the first direction is provided with a breathable membrane 40. For example, the breathable membrane 40 is provided at one end of the cooling section 21 along the first direction. Furthermore, the breathable membrane 40 is provided at one end of the cooling section 21 near the aerosol-generating matrix segment 10. For another example, the breathable membrane 40 is provided at both ends of the cooling section 21 along the first direction. The breathable membrane 40 provides ventilation, facilitating the circulation of aerosols. The breathable membrane 40 is provided at one end of the cooling section 21 near the aerosol-generating matrix segment 10. The breathable membrane 40 can block the matrix strip 100, preventing the matrix strip 100 from being inserted into the functional segment 20.

[0191] In one embodiment, the air permeability of the breathable membrane 40 is not less than 500 CU (CU is cm 3 / (min*cm 2*kPa) is an abbreviation of . That is, the air permeability of the breathable membrane 40 can be greater than or equal to 500 CU. In this way, the air permeability of the breathable membrane 40 is moderate to avoid excessive increase in inhalation resistance, which may cause difficulty for the user to inhale.

[0192] In one embodiment, the breathable film 40 may be fixed to the packaging layer 200 .

[0193] For example, the breathable membrane 40 may be cigarette paper, non-woven fabric and / or high molecular polymer with good breathability.

[0194] In one embodiment, the dimension of the aerosol-generating substrate segment 10 along the first direction is 20% to 80% (inclusive) of the length dimension of the aerosol-generating article 1 along the first direction. Exemplarily, the dimension of the aerosol-generating substrate segment 10 along the first direction is 20%, 30%, 40%, 50%, 60%, or 80%, etc., of the length dimension of the aerosol-generating article 1 along the first direction. In this way, the aerosol-generating substrate segment 10 has an appropriate mass to meet the user's puffing needs without excessively increasing the length of the aerosol-generating article 1, making it easier for the user to handle the aerosol-generating article 1.

[0195] In one embodiment, the dimension of the cooling section 21 along the first direction is 25% to 65% (inclusive) of the dimension of the aerosol-generating article 1 along the first direction. Exemplarily, the dimension of the cooling section 21 along the first direction is 25%, 30%, 35%, 40%, 50%, or 65%, etc., of the dimension of the aerosol-generating article 1 along the first direction. In this way, the aerosol has a moderate path length when flowing through the cooling section 21, achieving a good cooling effect, without excessively increasing the size of the aerosol-generating article 1 or encroaching on the size of the aerosol-generating substrate section 10.

[0196] In one embodiment, please refer to Figures 13 to 16 The cooling section 21 has an air flow channel 21a. The air flow channel 21a facilitates the rapid passage of aerosol. Exemplarily, the air permeable membrane 40 covers the air flow channel 21a.

[0197] Illustratively, the breathable membrane 40 covering one end of the air flow channel 21a close to the aerosol generating matrix segment 10 can block the matrix strip 100 to prevent the matrix strip 100 from accidentally entering the air flow channel 21a (for example, the centrally heated heating component pushes the matrix strip 100 into the air flow channel 21a). In this way, it can prevent the matrix strip 100 from entering the air flow channel 21a, resulting in a reduction in the number of matrix strips 100 that can be heated and affecting the heating effect, and it can also prevent the matrix strip 100 from blocking the air flow channel 21a and affecting the inhalation resistance.

[0198] In addition, the purpose of covering the air permeable membranes 40 at opposite ends of the air flow channel 21 a is to avoid distinguishing the assembly direction of the cooling section 21 during the assembly of the aerosol generating product 1, thereby improving the convenience of assembly.

[0199] In one embodiment, please refer to Figures 13 to 16 The airflow channel 21a is aligned with the central region of the aerosol-generating substrate segment 10. Since the flow rate of the aerosol near the center is relatively high, aligning the airflow channel 21a with the central region of the aerosol-generating substrate segment 10 allows the aerosol to maintain a relatively high flow rate. In this way, the airflow channel 21a can eliminate the resistance added by the breathable membrane 40 to a certain extent, thereby ensuring a moderate puff resistance.

[0200] In one embodiment, please refer to Figures 14 to 16 The filter section 22 has a suction channel 22a. The suction channel 22a can reduce the suction resistance so that the user can obtain aerosol under the condition of smaller suction force.

[0201] In one embodiment, please refer to Figures 13 to 16 The functional section 20 further includes a flavoring section 23, which is disposed between the cooling section 21 and the filtering section 22. The flavoring section 23 is disposed between the cooling section 21 and the filtering section 22 to compensate for the smoke flavor and enhance the smoking taste.

[0202] In one embodiment, the fragrance section 23 comprises fragrance-treated fiber cotton. In one embodiment, the fragrance section 23 comprises fiber cotton and popping beads disposed within the fiber cotton. The fiber cotton may be fragrance-treated or unfragmented, with the popping beads disposed within the fiber cotton.

[0203] In other embodiments, the functional section 20 may not be provided with the flavoring section 23 .

[0204] It is understood that in some embodiments, a single matrix strip 100 may have different densities or cross-sectional dimensions along the first direction, and the cross-sectional dimensions of some matrix strips 100 may be different from those of other matrix strips 100. A matching design may be performed based on the temperature field distribution characteristics of the heating assembly.

[0205] For some examples, see Figure 15 and Figure 16The aerosol-generating article 1 further includes a plugging section 50, which is disposed at the end of the aerosol-generating matrix segment 10 distal from the functional segment 20. On one hand, the plugging section 50 reduces the amount of external airflow that contacts the aerosol-generating matrix segment 10 through the end face of the aerosol-generating matrix segment 10 that is distal from the functional segment 20 along the first direction, thereby reducing heat dilution caused by external airflow. This results in a more stable temperature field during heating of the aerosol-generating matrix segment 10 and improved thermal efficiency. On the other hand, the plugging section 50 can, to a certain extent, prevent the aerosol-generating matrix segment 10 from falling after puffing.

[0206] For example, in one embodiment, please refer to Figure 15 and Figure 16 The outer wrapping layer 30 can be wrapped around the outer periphery of the plug section 50.

[0207] For some examples, see Figure 15 and Figure 16 The plug section 50 is a hollow tube structure. This design, on the one hand, shields the end of the aerosol-generating matrix segment 10 away from the functional segment 20 in the first direction, allowing the aerosol-generating matrix segment 10 to generate aerosols when heated in a low-oxygen or oxygen-free environment. The central channel of the hollow tube structure allows external airflow to flow, facilitating the diffusion of aerosol generated by the aerosol-generating matrix segment 10 toward the aerobic region, i.e., the functional segment 20. Since the aerosol-generating matrix 1 is less exposed to oxygen during the heating process, the generation of harmful substances can be reduced, lowering the probability of carbonization of the aerosol-generating matrix 1. Furthermore, the plug section 50 can adjust the draw resistance.

[0208] For some examples, see Figure 16 The plug section 50 is a hollow tube structure, and a breathable membrane 60 is provided at one end of the plug section 50 away from the aerosol-generating matrix section 10. The membrane 60 has both breathability and barrier functions. The membrane 60 not only adjusts the draw resistance but also prevents the matrix strip 100 from falling through the central channel of the plug section 50.

[0209] In some embodiments, an insertion channel formed by the matrix strip 100 is provided at the center of the aerosol generating matrix segment 10. Exemplarily, the heating assembly can extend into the insertion channel. In other words, a central heating method can be adopted. An insertion channel that is adapted to the size of the heating assembly can be reserved to reduce friction between the heating assembly and the matrix strip 100, thereby reducing the risk of the heating assembly pushing the matrix strip 100 into the functional segment 20.

[0210] The aerosol-generating article 1 may be used in conjunction with an aerosol-generating device having a heating assembly.

[0211] Exemplarily, the aerosol generating device is a portable aerosol generating device. For example, the aerosol generating device can be a handheld aerosol generating device. The aerosol generating device can be roughly rectangular in shape. This makes it easier for a user to hold the aerosol generating device.

[0212] The aerosol generating device provided in the embodiments of the present application is used for the aerosol generating article 1 in any embodiment of the present application. The aerosol generating device includes a heating component, which is used to heat the aerosol generating substrate segment 10 to generate an aerosol.

[0213] The heating methods of the heating component include, but are not limited to, resistive heating, electromagnetic heating, infrared heating, microwave heating, air heating, electric field heating, or laser heating. The heat generated by the heating component can be transferred to the aerosol-generating matrix segment 10 via convection, conduction, or radiation. Convection heat transfer means that the heating component is not in contact with the aerosol-generating matrix segment 10; the heating component first heats the air, and then the hot air bakes and heats the aerosol-generating matrix segment 10. Convection heat transfer means that the heating component is in contact with the aerosol-generating matrix segment 10 (or with the wrapping layer 3 encapsulating the aerosol-generating matrix segment 10) and transfers heat to the aerosol-generating matrix segment 10. For example, resistive heating and electromagnetic heating primarily transfer heat to the aerosol-generating matrix segment 10 via conduction or convection. Infrared heating, microwave heating, or laser heating primarily transfer heat to the aerosol-generating matrix segment 10 via radiation. The heating component can heat the aerosol-generating matrix segment 10 via one or more of conduction, convection, and radiation.

[0214] For example, in one embodiment, the matrix strip 100 can be made of an atomizing medium itself, such as a smoke-flavoring flavoring medium. In other embodiments, the matrix strip 100 can also include a substrate and an atomizing medium disposed on the substrate. The substrate can be, for example, one or more of high-temperature-resistant carbon fiber, softwood pulp fiber, hardwood pulp fiber, bamboo fiber, cotton fiber, or hemp fiber. By providing the substrate, the strength of the matrix strip 100 can be increased while also being able to withstand a certain degree of high temperature without generating odor.

[0215] The specific components of the matrix strip 100 are not limited herein. For example, in one embodiment, the matrix strip 100 may include plant components, auxiliary components, smoke-generating components, adhesive components, and the like.

[0216] In one embodiment, the plant component is one or more combinations of powders formed from crushed tobacco leaves, tobacco leaf fragments, tobacco stems, tobacco dust, and flavorful plants. The plant component is the core source of the flavor of the product. Endogenous substances in the plant component, such as nicotine, enter the human bloodstream through aerosolization, promoting dopamine production in the pituitary gland, thereby achieving a sense of physiological satisfaction.

[0217] In one embodiment, the plant components may include one or more of tobacco, tea leaves, tea stems, dandelion, eucalyptus, cloves, cinnamon, turmeric, fungi, insulin wood, astragalus, jujube seeds, lentils, kudzu root, fennel, rosemary, star anise, honeysuckle, chrysanthemum, rose, marigold, mugwort, olive, ginseng, American ginseng, mung beans, red beans, tangerine peel, nut shells, lily, coffee, agarwood, mint, hawthorn, licorice, cocoa, fungus, lotus seeds, lotus leaves, zingiber officinale, ginger, buckwheat, and wheat bran. The mass proportion of the plant components in the aerosol matrix can be 20%-80% (including the endpoint values).

[0218] In one embodiment, the auxiliary agent may be one or more combinations of inorganic fillers, lubricants, and emulsifiers. Inorganic fillers include one or more combinations of heavy calcium carbonate, light calcium carbonate, zeolite, attapulgite, talc, and diatomaceous earth. Inorganic fillers can provide skeletal support for the plant component and, while also possessing micropores, can increase the porosity of the wall material after the plant component is formed, thereby improving the aerosol release rate.

[0219] Lubricants include one or more of candelilla wax, carnauba wax, shellac, sunflower wax, rice bran, beeswax, stearic acid, and palmitic acid. Lubricants can increase particle flowability, reduce friction between particles, and achieve a more uniform particle density. They can also reduce mold pressure and reduce mold wear.

[0220] Emulsifiers include one or more combinations of polyglycerol fatty acid esters, Tween-80, and polyvinyl alcohol. Emulsifiers can, to a certain extent, slow the loss of flavoring substances during storage, increase their stability, and improve the sensory quality of the product. Emulsifiers (also known as surfactants) can reduce the interfacial tension between the water-soluble and water-insoluble components in a mixed system and form a relatively strong film on the surface of the droplets. Alternatively, due to the charge imparted by the emulsifier, a double layer is formed on the surface of the droplets, preventing the droplets from aggregating and maintaining a uniform emulsion. Emulsifying and homogenizing two immiscible components can improve the consistency of product quality.

[0221] The function of the smoke-generating agent component is to generate a large amount of vapor when heated, thereby increasing the aerosol volume of the smoking article. In one embodiment, the smoke-generating agent may include, for example, a monohydric alcohol (such as menthol); a polyhydric alcohol (such as propylene glycol, triethylene glycol, 1,3-butylene glycol, and glycerol); an ester of a polyhydric alcohol (such as glyceryl monoacetate, glyceryl diacetate, or glyceryl triacetate); a monocarboxylic acid; a polycarboxylic acid (such as lauric acid, myristic acid), or an aliphatic ester of a polycarboxylic acid (such as dimethyl dodecanedioate, dimethyl tetradecanedioate, erythritol, 1,3-butylene glycol, tetraethylene glycol, triethyl citrate, propylene carbonate, ethyl laurate, triactin, meso-erythritol, a mixture of diacetyl glycerides, diethyl suberate, triethyl citrate, benzyl benzoate, benzyl phenylacetate, ethyl vanillate, tributyrin, and lauryl acetate).

[0222] In one embodiment, the adhesive component is a natural plant-extracted, non-ionically modified viscous polysaccharide, including one or more combinations of tamarind polysaccharide, pullulan, seaweed polysaccharide, locust bean gum, guar gum, and xyloglucan. The adhesive wetting and intimately contacting the product component materials creates intermolecular attraction, thereby bonding the powders and liquids of the component materials. The use of a natural plant-extracted, non-ionic adhesive can prevent the release of harmful substances such as methanol, formaldehyde, and acrolein caused by colloid modification, thereby improving the safety of the product.

[0223] The matrix strip 100 can be a particle combination, which is a reconstituted tobacco medium, for example, a reconstituted tobacco medium containing ingredients such as a smoke-generating agent and tobacco. The matrix strip 100 is a one-piece structure, for example, a one-piece structure that can be formed by injection molding, compression molding, or extrusion. Extrusion molding refers to a processing method in which a raw material mixture is added to an extruder, and the material is pushed forward by the screw through the action between the extruder barrel and the screw, and continuously passes through the die to form various cross-sectional finished products or semi-finished products.

[0224] For example, a plurality of matrix strips 100 can be extruded simultaneously by an extruder, and the matrix strips 100 are dried and shaped by a drying device. After shaping, the matrix strips 100 are first oriented and arranged, and then formed into an aerosol-generating matrix segment 10 by a winding rod.

[0225] Since the matrix strips 100 are a combination of particles, the aerosol-generating matrix segment 10 formed by multiple matrix strips 100 is an integrated medium after being heated and inhaled or after the heating stops, and is not prone to disintegration and falling off. This solves the problems of the aerosol-generating matrix segment 10 in the prior art, such as loose flakes, falling off of filamentous components and particle components, and difficulty in cleaning, which occur in the aerosol-generating matrix segment 10 of thin flakes, filaments or loose particles.

[0226] In some embodiments, the aerosol-generating article may lack a functional segment. That is, the aerosol-generating substrate segment alone may constitute the aerosol-generating article for use in specialized aerosol-generating devices. For example, the aerosol-generating device includes a nozzle and a cooling component. The nozzle and cooling component may be reusable or disposable, and only the aerosol-generating substrate segment needs to be inserted into or removed from the heating space. The substrate strip may be any of the substrate strips and assembly structures described in the aforementioned embodiments, and will not be described in detail here.

[0227] In the above embodiments, the aerosol generating substrate segment may be cylindrical, sheet-shaped, square, etc., and may be adapted according to the characteristics of the heating component and the aerosol generating device.

[0228] The aerosol generating substrate segment 10 of the present application will be further described below in conjunction with specific test examples.

[0229] Test Example 1 of this application

[0230] Test sample: The aerosol-generating matrix segment 10 is cylindrical, and the matrix strips 100 are cylindrical. The aerosol-generating matrix segment 10 includes a first set and a second set. The equivalent diameter of all matrix strips 100 is 1 mm. The density of the first density strip 101 is 917 mg / cm 3 The density of the second density strip 102 is 1207 mg / cm 3 The number ratio of the first density strips 101 to the second density strips 102 is 1:9, the first density strips 101 are distributed in the inner circle, and the second density strips 102 are distributed in the outer circle of the first density strips 101.

[0231] Test equipment: center needle heating device.

[0232] Test conditions: 51%-56% RH, 25°C, clean room, 2s draw and 28s pause, 10 puffs, 5 tubes in total.

[0233] Test results: See Table 1 (all units are mg, PG is glycerol, VG is propylene glycol).

[0234] Table 1

[0235]

[0236]

[0237] Data analysis: The average puff volume of aerosol generated by the aerosol-generating matrix segment 10 during the heating process was 4.52 mg / puff, and the RSD (relative standard deviation) of the puff volume was 14.7%. The aerosol volume and the puff-by-puff release of the aerosol generating agents (VG and PG) and active substances such as nicotine in the aerosol were very stable.

[0238] In Test Example 1 of the present application, the aerosol-generating matrix segment 10 mainly has a first density strip 101 and a second density strip 102 with two different densities. The entire heating process fully utilizes the respective advantages of the first density strip 101 and the second density strip 102 to complement each other. In the front section of heating (i.e., the initial stage), the first density strip 101 can quickly generate aerosol and is relatively sufficient, while the aerosol generated by the second density strip 102 at this time is relatively limited; as the heating time increases, in the middle and late stages of puffing, although the aerosol generated by the first density strip 101 decays, the second density strip 102 can continue to generate sufficient aerosol. Therefore, the aerosol generated during the entire heating process is continuous and stable, thereby improving the puffing experience.

[0239] Test Example 2 of this application

[0240] Test sample: The aerosol-generating matrix segment 10 is cylindrical, and the matrix strips 100 are cylindrical. The aerosol-generating matrix segment 10 includes a first set, a second set, and a third set. The equivalent diameter of all matrix strips 100 is 1 mm. The density of the first density strip 101 is 917 mg / cm 3 The density of the second density strip 102 is 1050 mg / cm 3 The density of the third density strip 103 is 1207 mg / cm 3 The number ratio of the first density strip 101, the second density strip 102 and the third density strip 103 is 1:5:3. The first density strip 101 is distributed in the inner circle, the second density strip 102 is distributed in the outer circle, and the third density strip 103 is distributed between the first density strip 101 and the second density strip 102.

[0241] Test equipment: center needle heating device.

[0242] Test conditions: 51%-56% RH, 25°C, clean room, 2s draw and 28s pause, 10 puffs, 5 tubes in total.

[0243] Test results: See Table 2 (all units are mg, PG is glycerol, VG is propylene glycol).

[0244] Table 2

[0245] Number of mouths Average aerosol volume per puff PG by mouth VG Nicotine puff by puff 1 5.12 0.692 0.181 0.055 2 5.77 0.800 0.194 0.061 3 6.33 1.013 0.263 0.075 4 6.06 1.073 0.315 0.083 5 5.54 1.042 0.323 0.081 6 5.12 0.938 0.344 0.075 7 4.92 0.874 0.356 0.073 8 4.58 0.826 0.373 0.072 9 4.31 0.781 0.384 0.069 10 4.09 0.699 0.374 0.062

[0246] Data analysis: The average puff volume of aerosol generated by the aerosol-generating matrix segment 10 during the heating process was 5.18 mg / puff, and the RSD (relative standard deviation) of the puff volume was 14.8%. The aerosol volume, the puff-by-puff release of the aerosol generating agents (VG and PG, etc.) in the aerosol, and the effective substances such as nicotine were very stable.

[0247] In Test Example 2 of the present application, the aerosol-generating matrix segment 10 mainly has three different densities, namely, the first density strip 101, the second density strip 102 and the third density strip 103. The entire heating process fully utilizes the respective advantages of the first density strip 101, the second density strip 102 and the third density strip 103 to complement each other. In the front section of heating (i.e., the initial stage), the first density strip 101 produces sufficient aerosol, and the second density strip 102 and the third density strip 103 produce relatively limited aerosol at this time; as the heating time increases, by the middle of the puffing, the aerosol produced by the first density strip 101 shows a certain attenuation, and the second density strip 102 and the third density strip 103 begin to produce sufficient aerosol. By the latter section of the puffing, the second density strip 102 is fully heated and produces sufficient aerosol. Therefore, the aerosol produced during the entire heating process is continuous and stable, thereby improving the puffing experience.

[0248] Test Example 3 of this application

[0249] Test sample: The aerosol-generating matrix segment 10 is cylindrical, and the matrix strips 100 are cylindrical. The aerosol-generating matrix segment 10 comprises a first unit and a second unit. The equivalent diameter of all matrix strips 100 is 1 mm. The density of the matrix strips 100 of the first unit is 917 mg / cm 3 The density of the matrix strip 100 of the second unit is 1207 mg / cm 3 The number ratio of the matrix strips 100 of the first unit to the matrix strips 100 of the second unit is 1:1, and the matrix strips 100 of the first unit and the second unit are evenly distributed.

[0250] Test equipment: Center pin heater.

[0251] Test conditions: 51%-56% RH, 25°C, clean room, 2s draw and 28s pause, 10 puffs, 5 tubes in total.

[0252] Test results: See Table 3 (all units are mg, PG is glycerol, VG is propylene glycol).

[0253] Table 3

[0254] Number of mouths Average aerosol volume per puff PG by mouth VG Nicotine puff by puff 1 4.64 0.660 0.172 0.053 2 5.45 0.762 0.185 0.058 3 5.98 0.966 0.251 0.072 4 5.73 1.022 0.301 0.079 5 5.24 0.993 0.308 0.078 6 4.84 0.894 0.327 0.072 7 4.65 0.833 0.339 0.070 8 4.33 0.787 0.355 0.069 9 4.08 0.745 0.366 0.066 10 3.86 0.666 0.356 0.059

[0255] Data analysis: The average puff volume of aerosol generated by the aerosol-generating matrix segment 10 during the heating process was 4.88 mg / puff, and the RSD (relative standard deviation) of the puff volume of the aerosol was 14.3%. The aerosol volume and the puff-by-puff release of the aerosol generating agents (VG and PG) and active substances such as nicotine in the aerosol were relatively stable.

[0256] In Test Example 3 of the present application, the aerosol-generating matrix segment 10 mainly has a first unit and a second unit with two different densities. The entire heating process fully utilizes the respective advantages of the first unit and the second unit to complement each other. In the early stage of heating (i.e., the initial stage), the first unit produces sufficient aerosol, and the aerosol produced by the second unit at this time is relatively limited; as the heating time increases, in the middle and late stages of puffing, the aerosol produced by the first unit shows obvious attenuation, and the second unit continues to produce sufficient aerosol. Therefore, the aerosol generated during the entire heating process remains relatively stable, thereby improving the puffing experience.

[0257] Comparative test example 1

[0258] Test sample: The aerosol generating matrix segment is cylindrical and the matrix strips are cylindrical. The equivalent diameter of all matrix strips is 1 mm and the density of all matrix strips is 917 mg / cm 3 That is, the entire aerosol generating matrix section has only one matrix strip of density.

[0259] Test equipment: center needle heating device.

[0260] Test conditions: 51%-56% RH, 25°C, clean room, 2s draw and 28s pause, 10 puffs, 5 tubes in total.

[0261] Test results: See Table 4 (all units are mg, PG is glycerol, VG is propylene glycol).

[0262] Table 4

[0263] Number of mouths Puff-by-puff aerosol volume VG PG by mouth Nicotine puff by puff 1 5.64 0.985 0.371 0.072 2 5.41 0.945 0.365 0.071 3 5.19 0.887 0.357 0.065 4 4.87 0.829 0.328 0.065 5 4.55 0.750 0.321 0.063 6 4.12 0.599 0.311 0.062 7 3.29 0.504 0.278 0.052 8 2.77 0.361 0.232 0.047 9 1.98 0.246 0.217 0.033 10 1.35 0.201 0.209 0.027

[0264] Data analysis: The average amount of aerosol produced by the aerosol-generating matrix during the heating process was 3.92 mg / puff, and the RSD (relative standard deviation) of the aerosol was 38.26%.

[0265] In Comparative Test Example 1, during the heating process, the amount of aerosol produced during the first puff, as well as the puff-by-puff release of aerosol generating agents, nicotine, and other active substances in the smoke, were sufficient. However, this decreased significantly during the second and third puffs. This was primarily due to the low density of the matrix strip, resulting in a low and limited effective load, which led to poor consistency between the first and last puffs.

[0266] Comparative test example 2

[0267] Test sample: The aerosol generating matrix segment is cylindrical, and the matrix strips are cylindrical. The equivalent diameter of all matrix strips is 1 mm, and the density of all matrix strips is 1207 mg / cm 3 That is, the entire aerosol generating matrix section has only one matrix strip of density.

[0268] Test equipment: center needle heating device.

[0269] Test conditions: 51%-56% RH, 25°C, clean room, 2s draw and 28s pause, 10 puffs, 5 tubes in total.

[0270] Test results: See Table 5 (all units are mg, PG is glycerol, VG is propylene glycol).

[0271] Table 5

[0272] Number of mouths Average aerosol volume per puff PG by mouth VG Nicotine puff by puff 1 2.12 0.390 0.105 0.032 2 2.47 0.455 0.135 0.037 3 3.8 0.515 0.207 0.042 4 6.4 0.685 0.337 0.056 5 5.8 0.856 0.351 0.070 6 5.58 0.990 0.366 0.081 7 5.4 0.902 0.321 0.074 8 4.71 0.867 0.309 0.071 9 4.23 0.779 0.277 0.064 10 3.77 0.657 0.298 0.054

[0273] Data analysis: The average amount of aerosol produced by the aerosol-generating matrix during the heating process was 4.01 mg / puff, and the RSD (relative standard deviation) of the aerosol was 28.6%.

[0274] In Comparative Test Example 2, during the heating process, the amount of aerosol produced during the first puff, as well as the puff-by-puff release of active substances such as aerosol generators and nicotine, were relatively low. However, significant improvements were observed in the middle and later stages of the puff. This is primarily due to the higher density and payload of the matrix strips. The matrix needs to absorb sufficient heat in the first puff to generate a stable aerosol, resulting in a poorer puff experience.

[0275] Comparative test example 3

[0276] Homogenized thin sheet aerosol-forming matrix segment with a density of 799 mg / cm 3 .

[0277] Test equipment: center needle heating device.

[0278] Test conditions: 51%-56% RH, 25°C, clean room, 2s pumping and 28s rest, 10 puffs.

[0279] Test results: See Table 6 (all units are mg, PG is glycerol, VG is propylene glycol).

[0280] Table 7

[0281]

[0282]

[0283] Data analysis: The average amount of aerosol generated by the thin sheet-shaped aerosol-generating matrix segment during the heating process was 3.54 mg / puff, and the RSD (relative standard deviation) of the aerosol amount was 23.8%. The test results showed that the aerosol amount of the sample before and after puffing was 20.98% smaller than that of Test Example 1 of the present application under the same test conditions. This was mainly because the morphology of the sample was significantly different from the aerosol-generating matrix segment of the present application, and the sample had a lower density and a lower effective load, resulting in a limited amount of aerosol generated during the puffing process.

[0284] In the description of this application, the descriptions with reference to the terms "in one embodiment", "in some embodiments", "in other embodiments", or "exemplary" etc. mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the embodiments of the present application. In this application, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in a suitable manner in any one or more embodiments or examples. In addition, those skilled in the art can combine different embodiments or examples described in this application and features of different embodiments or examples without contradiction.

[0285] The above description is merely a preferred embodiment of the present application and is not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application are intended to be within the scope of protection of the present application.

Claims

1. An aerosol generating matrix segment, characterized in that The aerosol-generating substrate segment comprises at least two substrate strips, each of the substrate strips being arranged in parallel in a bundle and extending from one end to the other end of the aerosol-generating substrate segment, all of the substrate strips having at least two densities.

2. The aerosol-generating substrate segment according to claim 1, wherein The cross-sectional size and / or density of a single matrix strip at any two positions along its own extension direction are the same.

3. The aerosol-generating substrate segment according to claim 1 , wherein: In a cross section perpendicular to the extension direction of the matrix strips, the cross-sectional dimensions of all the matrix strips are the same.

4. The aerosol-generating substrate segment according to claim 1 , wherein: The angle between the extension direction of each of the matrix strips and the central axis of the aerosol generating matrix segment is no greater than 10 degrees.

5. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterized in that The plurality of matrix strips are constructed into at least two radially nested sets, the matrix strips in a single set have the same density, and the matrix strips in at least two sets have different densities.

6. An aerosol-generating substrate segment according to claim 5, characterized in that The set includes a first set, a second set and a third set which are nested layer by layer from the inside to the outside along the radial direction. The matrix strips of the first set are first density strips, the matrix strips of the second set are second density strips, and the matrix strips of the third set are third density strips. The density of the first density strips and the density of the third density strips are different from the density of the second density strips.

7. An aerosol-generating substrate segment according to claim 6, characterized in that The density of the first density strip and the density of the third density strip are both smaller than the density of the second density strip.

8. The aerosol-generating substrate segment according to claim 6, wherein The density of the first density strips and the density of the third density strips are the same or different.

9. The aerosol-generating substrate segment according to claim 6, wherein One of the density of the first density strip and the density of the second density strip is 400 mg / cm 3 -1300mg / cm 3 The density of the first density strip and the density of the second density strip, the other of which is 900 mg / cm 3 -2000mg / cm 3 , and / or, the density of the third density strip is 400 mg / cm 3 -1300mg / cm 3 .

10. The aerosol-generating substrate segment according to claim 5, wherein The density of the plurality of assembled substrate strips increases or decreases sequentially from the center of the cross section of the aerosol-generating substrate segment outward.

11. An aerosol-generating substrate segment according to claim 5, characterized in that The set of matrix strips having a first density is a first group, and the set of matrix strips having a second density is a second group. The first and second values ​​are different, and a plurality of the first and second groups are alternately arranged radially.

12. The aerosol-generating substrate segment according to claim 5, wherein The density difference between two adjacent matrix strips of the set is 50 mg / cm 3 -300mg / cm 3 , or, the density difference between any two matrix strips of the set is 50 mg / cm 3 -600mg / cm 3 .

13. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that The density of the matrix strip is 400 mg / cm 3 -2000mg / cm 3 .

14. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that The equivalent diameter of the cross section of the matrix strip is 0.4 mm to 7 mm.

15. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that The dimension of the matrix strip along its own extension direction is 6 mm to 40 mm.

16. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that Part of the matrix strips is defined as a first unit, and the remaining part of the matrix strips is defined as a second unit, and the volume ratio of the first unit to the second unit is 1:10 to 5:1; The density of the matrix strips of the first unit is in a first density range, the density of the matrix strips of the second unit is in a second density range, and the first density range is smaller than the second density range; or, the density of the matrix strips of the first unit is a first value, the density of the matrix strips of the second unit is a second value, and the first value is smaller than the second value.

17. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that Part of the matrix strips is defined as a first unit, and the remaining part of the matrix strips is defined as a second unit. The density of the matrix strips of the first unit is a first value, and the density of the matrix strips of the second unit is a second value. The first value is less than the second value. The matrix strips of the first unit and the second unit are evenly distributed or randomly distributed.

18. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that Taking a plane perpendicular to the extension direction of the matrix strip as a cross section, the cross section of the matrix strip has a shape of at least one of polygon, ellipse, petal, circle, waist circle, gear and special shape.

19. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that The aerosol-generating substrate segment comprises a packaging layer which is rolled up to form a receiving space in which all the substrate strips are received.

20. An aerosol-generating substrate segment according to claim 19, wherein The filling rate of all the substrate strips in the aerosol-generating substrate segment is 40% to 90%, or the bulk density of the substrate strips in the aerosol-generating substrate segment is 500 mg / cm 3 -1400 mg / cm 3 .

21. An aerosol-generating substrate segment according to any one of claims 1 to 4, characterised in that The number of the matrix strips is 2-45, or the number of the matrix strips is 20-40.

22. An aerosol-generating substrate segment according to any one of claims 1 to 2, wherein The cross section of the aerosol-generating substrate segment perpendicular to the extension direction of the substrate strip comprises at least two substrate strip cross sections of different sizes.

23. An aerosol-generating substrate segment according to claim 22, wherein The cross-sectional dimensions of the matrix strips with a lower density are smaller than the cross-sectional dimensions of the matrix strips with a higher density.

24. An aerosol-generating article, characterized in that include: The aerosol-generating substrate segment according to any one of claims 1 to 23; a functional section, the functional section being arranged at one end of the aerosol generating matrix section, the functional section comprising a cooling section and a filtering section, the cooling section being located between the filtering section and the aerosol generating matrix section; An outer wrapping layer wraps around the outer circumference of the functional segment and the aerosol generating substrate segment.

25. An aerosol-generating article according to claim 24, wherein The aerosol-generating article comprises a breathable membrane; At least one end of the aerosol generating substrate segment is provided with the breathable membrane; and / or, The breathable membrane is provided at at least one end of the temperature reduction section.

26. An aerosol-generating article according to claim 25, wherein The air permeability of the breathable membrane is not less than 500CU.

27. The aerosol-generating article of claim 24, wherein The aerosol-generating article extends along a first direction, and the dimension of the aerosol-generating substrate segment along the first direction is 20% to 80% of the length dimension of the aerosol-generating article along the first direction; and / or, The dimension of the cooling section along the first direction is 25% to 65% of the dimension of the aerosol generating article along the first direction.

28. The aerosol-generating article of claim 24, wherein The cooling section has an air flow channel; and / or the filtering section has a suction channel.

29. The aerosol-generating article of claim 24, wherein The functional section further includes a flavoring section, which is arranged between the cooling section and the filtering section.

30. An aerosol-generating article according to claim 29, wherein The fragrance-enhancing section includes fiber cotton that has been subjected to fragrance-enhancing treatment; or The fragrance-enhancing section includes fiber cotton and bursting beads arranged in the fiber cotton.

31. The aerosol-generating article of claim 24, wherein It also includes a plug segment, which is arranged at one end of the aerosol generating substrate segment away from the functional segment.

32. An aerosol-generating article according to claim 31 , wherein The plug section is a hollow tube structure; or, the plug section is a hollow tube structure, and an air-permeable diaphragm is provided at one end of the plug section away from the aerosol generating matrix section.

33. The aerosol-generating article of claim 24, wherein An insertion channel formed by the matrix strips is provided at the center of the aerosol generating matrix segment.

34. An aerosol-generating article, characterized in that include: An aerosol-generating substrate segment according to any one of claims 1 to 23; A breathable membrane is provided at at least one end of the aerosol generating substrate segment.

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