An aerosol generating product with a segmented aerosol generating matrix rod

Abstract

The invention discloses an aerosol generating product with a segmented aerosol generating matrix rod, characterized in that it comprises a smoking core material segment (1), a breathable hollow segment (2) and a filter segment (3); the smoking core material segment (1) comprises a segmented aerosol generating matrix rod and an anti-seepage / heat-conducting cigarette paper wrapping the segmented aerosol generating matrix rod, the two ends of the segmented aerosol generating matrix rod are short rod segments (11) formed by gluing tobacco particles, and the middle is a scattered particle segment (12) formed by unglued tobacco particles; the breathable hollow segment (2) and the filter segment (3) are wrapped by forming paper (5) to form a mouthpiece, and the smoking core material segment (1) and the mouthpiece are connected by a plugging paper (4). The short rod segments (11) at the two ends of the invention can ensure that the unglued tobacco particles in the middle do not fall and scatter, and there is no adhesive on the surface and gap of the unglued tobacco particles in the middle, and the axial ventilation volume, porosity and smoke release of the aerosol generating matrix rod are guaranteed. A cigarette core with high porosity can not only increase the amount of smoke generated, but also simplify the structure of aerosol generating products.

Description

Technical Field

[0001] The invention relates to the technical field of heat-not-burn cigarettes, and in particular to an aerosol generating product with a segmented aerosol generating matrix rod. Background Art

[0002] As consumers pay more attention to health issues and demand more personalized experience in cigarette products, the tobacco industry continues to respond to the upgrading of consumer demand and develop various smoking products with reduced tar and harm. Among them, heated cigarettes are different from traditional cigarette products in that they are heated in a way that satisfies consumers' sensory needs for cigarette products while providing a healthier smoking experience.

[0003] The smoking material of granular heated cigarettes is bulk smoking particles. In the prior art, since the bulk smoking particles cannot be fixed, they must be filled into the outer tube by filling, and the particles need to be fixed on both sides of the smoking particle segment by means of sealing paper and sealing parts, resulting in low production efficiency and high defective rate.

[0004] First, on this basis, the present invention bonds the bulk smoke particles together with an adhesive to form a cylindrical aerosol generating matrix rod, and then after the aerosol generating matrix rod is wrapped with an outer tube, it is used alone as a solid aerosol generating matrix rod, and then it is combined with other components to produce an aerosol generating product through a filling, rolling or compounding process. Since this smoke segment is already an integral cylindrical aerosol generating matrix rod, there will be no problem of smoke particles falling and scattering, so there is no need to set sealing films or blocking parts on both sides of the smoke segment. In addition, it is not limited to the filling form to combine it with other components to produce an aerosol generating product.

[0005] At present, the method of preparing a cylindrical aerosol generating matrix rod by bonding scattered smoke particles with an adhesive is to directly put the scattered tobacco particles into a blender, add a large amount of adhesive into the blender, stir and mix them evenly, extrude them, and cool them. The problems with the aerosol generating matrix rod prepared by this method are: 1. Since a large amount of adhesive is added during the stirring process, after cooling, the cooled adhesive also exists in the gaps between adjacent tobacco particles in the aerosol generating matrix rod, which leads to low porosity and small axial air permeability of the aerosol generating matrix rod; 2. If, in order to avoid the first problem, less adhesive is directly added during the stirring and mixing process, it will cause uneven dispersion of the adhesive, and there will be no adjacent tobacco particles with glue applied on the surface, resulting in failure to bond, resulting in the problem of scattered smoke particles; 3. A more critical problem is that the addition of a large amount of adhesive will also result in a large amount of adhesive being applied to the surface of each tobacco particle, which will seriously affect the release of aerosol after the tobacco particles are heated. In fact, in essence, the purpose of gluing is only to allow the scattered tobacco particles to bond, but it is not desired that the non-bonded areas of the tobacco particles are also glued, which will affect the aerosol release.

[0006] Therefore, how to ensure that the surfaces where tobacco particles adhere to each other have adhesive, while the surfaces where they do not adhere have no adhesive, is the key to ensuring the porosity and smoke volume of the aerosol generating matrix rod.

[0007] In order to solve the above problems, the present invention is proposed. Summary of the invention

[0008] The present invention provides an aerosol generating product with a segmented aerosol generating matrix rod, which comprises a smoke generating core material segment 1, a breathable hollow segment 2 and a filter segment 3;

[0009] The smoking core material segment 1 includes a segmented aerosol generating matrix rod and an anti-seepage / heat-conducting cigarette paper wrapping the segmented aerosol generating matrix rod, the two ends of the segmented aerosol generating matrix rod are short rod segments 11 formed by gluing tobacco particles, and the middle is a scattered particle segment 12 formed by unglued tobacco particles;

[0010] The air-permeable hollow section 2 and the filter section 3 are wrapped by a shaping paper 5 to form a mouthpiece, and the smoking core material section 1 and the mouthpiece are connected by a tipping paper 4.

[0011] Preferably, the mass ratio of tobacco particles in the short-stick segment to tobacco particles in the scattered particle segment is 1:10-1:1; the mass ratio of tobacco particles in the gluing area to the adhesive is 1:1-1:4. More preferably, the mass ratio of tobacco particles in the short-stick segment to tobacco particles in the scattered particle segment is 1:6. More preferably, the mass ratio of tobacco particles in the gluing area to the adhesive is 1:3.

[0012] Preferably, the area of ​​the top of the tobacco particles in the gluing region where the gluing is applied accounts for 30-60% of the surface area of ​​the tobacco particles. In other words, the gluing tobacco particles in the gluing region are only gluing on the top, and the side and bottom surfaces are not gluing.

[0013] Preferably, the porosity of the segmented aerosol generating matrix rod is 40-80%; the axial suction resistance of the segmented aerosol generating matrix rod is 5-40Pa / mm. More preferably, the porosity of the segmented aerosol generating matrix rod is 60%. More preferably, the axial suction resistance of the segmented aerosol generating matrix rod is 15Pa / mm.

[0014] Preferably, the weight of the anti-seepage / thermal conductive paper is 30-70 g / m 2 More preferably, the weight of the anti-seepage / thermal conductive paper is 60 g / m 2 On the one hand, the anti-seepage cigarette paper can be used to roll and wrap tobacco particles, and on the other hand, the gram weight of the anti-seepage cigarette paper can be selected to be larger, which can also play a role in maintaining the roundness of the segmented tobacco rod after rolling.

[0015] Preferably, the particle size of the tobacco particles is 8-60 meshes; more preferably, the particle size of the tobacco particles is 20-30 meshes.

[0016] The adhesive is selected from chitosan, hydroxyethylated composite modified ethyl cellulose, guar gum, carboxymethyl cellulose, starch, modified starch, plant cellulose, microcrystalline cellulose, hydroxyethyl cellulose, and hydroxyethyl methyl cellulose.

[0017] Preferably, the tube wall of the breathable hollow section 2 is made of paper, silica gel, acetate fiber, polylactic acid, or non-woven fabric.

[0018] Preferably, the breathable hollow section 2 is grooved corrugated or gear-shaped, and has circumferentially distributed small-pore airflow channels 21 penetrating the breathable hollow section 2, and also has a large-pore airflow channel 22 penetrating the breathable hollow section 2 at the axial center; wherein the structure of the breathable hollow section in the shape of a grooved corrugated structure can refer to the patent application filed by the present applicant, with application number 2021111148695, entitled: A kind of aerosol-generating product with a flavored core segment, and the description of the grooved corrugated breathable hollow section involved in the application is incorporated into this application. wherein the structure of the breathable hollow section in the shape of a gear can refer to the patent application filed by the present applicant, with application number 2021111166585, entitled: A kind of aerosol-generating product with a flavored core segment, and the description of the gear-shaped breathable hollow section involved in the application is incorporated into this application.

[0019] Preferably, there are ventilation holes 23 on the tube wall of the breathable hollow section 2, and the area of ​​the ventilation holes 23 is 1 / 2-7 / 8 of the cross-sectional area of ​​the filter.

[0020] Preferably, the shaping paper 5 and the tipping paper 4 are naturally air-permeable.

[0021] Preferably, the aerosol generating product further comprises a functional segment 6, which is located between the smokable core segment 1 and the air-permeable hollow segment 2, or between the air-permeable hollow segment 2 and the filter segment 3, and the functional segment 6 has the functions of cooling and converging smoke;

[0022] When the functional section 6 is located between the air-permeable hollow section 2 and the filter section 3, the functional section 6 can be a hollow tube, and the wall of the hollow tube is air-permeable, and can be air-permeable by itself or by punching holes in the tube wall. The structure and preparation method of the hollow tube with naturally air-permeable tube wall can refer to the patent application of the applicant, application number 2021105997045, entitled: A patent for a heated cigarette filter rod with natural air-permeability and a heated cigarette containing the same, and the description of the hollow tube with naturally air-permeable tube wall involved in the application is incorporated into this application.

[0023] Preferably, the filter segment 3 may be made of conventional solid acetate fiber tow.

[0024] The present invention has a preparation method of a segmented aerosol generating matrix rod, and adopts a spraying gluing method. The adhesive is directly sprayed from a spray head on the top of the tobacco particles evenly to the top of the tobacco particles, so that it can be ensured that only the top of the tobacco particles is glued, while the bottom and side surfaces are not glued. On the basis of achieving adhesion, the release of aerosol after the tobacco particles are heated is guaranteed, the amount of smoke, and the axial ventilation volume and porosity of the aerosol generating matrix rod are guaranteed.

[0025] Furthermore, the spray sizing method of the present invention is intermittent spray sizing, so that the tobacco particles on the anti-seepage cigarette paper present a sizing area, an unsizing area, and an interval arrangement of the sizing area, and then the sizing tobacco particles, the unsizing tobacco particles, and the sizing tobacco particles are loaded into the outer tube in batches by a blanking method, and after cooling, a segmented aerosol generating matrix rod is obtained, wherein the two ends are short rod segments formed by the sizing tobacco particles being bonded, and the middle is a scattered particle segment formed by the unsizing tobacco particles. In this way, the short rod segments at the two ends can ensure that the unbonded tobacco particles in the middle do not fall and scatter, and the unbonded tobacco particles in the middle ensure the axial ventilation and porosity of the aerosol generating matrix rod.

[0026] The method for preparing a segmented aerosol generating matrix rod by intermittent spraying comprises the following steps:

[0027] (1) taking an impermeable cigarette paper and spreading it on a conveyor belt, then taking tobacco particles and spreading them on the impermeable cigarette paper, and the conveyor belt carries the impermeable cigarette paper and tobacco particles at a fixed speed;

[0028] (2) A spray head for spraying adhesive is provided above the conveyor belt, and the spray head sprays adhesive onto the top of tobacco particles intermittently, so that the tobacco particles on the anti-seepage cigarette paper are arranged alternately in the form of glue-applied area, un-glue-applied area, and glue-applied area;

[0029] (3) A cigarette folding and rolling device is provided downstream of the conveyor belt in the direction of its running. As the conveyor belt runs, the cigarette folding and rolling device wraps tobacco particles with the anti-seepage cigarette paper transported by the conveyor belt to obtain segmented aerosol generating matrix rod strips. The segmented aerosol generating matrix rod strips are then cut according to demand to obtain segmented aerosol generating matrix rods for aerosol generating products.

[0030] Preferably, the conveyor belt in step (1) runs at a speed of 0.5-2.5 cm / s, and more preferably, the conveyor belt in step (1) runs at a speed of 2 cm / s.

[0031] Preferably, the spraying procedure of the spray head in step (2) is to spray for 0.5-2 seconds at intervals of 1-5 seconds. More preferably, the spraying procedure of the spray head in step (2) is to spray for 1 second at intervals of 5 seconds.

[0032] The anti-seepage / thermal conductive paper of the present invention has an anti-seepage / thermal conductive layer with anti-seepage or thermal conductive function, and the anti-seepage / thermal conductive layer includes a waterproof layer and / or an oil-proof layer and / or a thermal conductive layer;

[0033] The waterproof layer is made of alkyl ketene dimer AKD, cationic rosin glue or iron-free aluminum sulfate mixed, paraffin material; the oil-proof layer is made of fluorocarbon organic matter, modified starch, AKD and paraffin mixture, AKD and modified starch mixture material. The heat-conducting layer is selected from but not limited to the aluminum foil layer, which is added to the inner wall of the cigarette paper tube by pasting; the aluminum foil layer can play the role of waterproof and / or oil-proof, and at the same time, the aluminum foil layer also has the role of heat conduction and heat preservation, so that the smoking material on the inner wall of the cigarette is evenly heated.

[0034] Preferably, the waterproof layer and / or oil-proof layer is coated on the inner wall of the cigarette paper tube by spraying.

[0035] During the storage of cigarettes, the moisture in the smoking material seeps to the outside of the cigarette paper tube, causing yellow spots, so it is necessary to add a waterproof layer to the inner wall of the cigarette paper tube filled with the smoking material. The waterproof layer is made of alkyl ketene dimer AKD, cationic rosin glue or iron-free aluminum sulfate mixed with paraffin material, which can prevent the moisture in the smoking material from seeping to the outside of the cigarette paper tube.

[0036] Similarly, smoking materials will be added with smoking agents, flavors and fragrances. During long-term storage, the smoking agents in the smoking materials will carry the flavors and fragrances to penetrate the outer side of the paper tube, resulting in yellow spots and affecting the appearance of the paper tube. Since the smoking agents are oily, it is necessary to add an oil-proof layer to the inner wall of the cigarette paper tube filled with smoking materials. The oil-proof layer uses a mixture of fluorocarbon organic matter, modified starch, AKD and paraffin, and a mixture of AKD and modified starch, which can prevent the smoking agents in the smoking materials from carrying flavors and fragrances to penetrate the outer wall of the paper tube and prevent the generation of yellow spots.

[0037] Compared with the prior art, the present invention has the following beneficial effects:

[0038] 1. The aerosol generating product of the present invention includes a segmented aerosol generating matrix rod, wherein the two ends of the segmented aerosol generating matrix rod are short rod segments 11 formed by gluing tobacco particles, and the middle is a scattered particle segment 12 formed by unglued tobacco particles. In this way, the short rod segments 11 at both ends can ensure that the unglued tobacco particles in the middle do not fall and scatter, and there is no adhesive on the surface and gaps of the unglued tobacco particles in the middle, which ensures the axial ventilation, porosity, and smoke release of the aerosol generating matrix rod. A high-porosity cigarette core can not only increase the smoke generation, but also simplify the structure of the aerosol generating product.

[0039] 2. The preparation method of the smokable core material segment 1 with high porosity of the present invention is intermittent spraying, which has the advantages of:

[0040] 1) The present invention adopts a spraying gluing method, and the adhesive is directly sprayed from the spray head on the top of the tobacco particles evenly to the top surface of the tobacco particles, so that it can be ensured that only the top surface of the tobacco particles is glued, while the bottom surface and the side surface are not glued, and the area of ​​the top surface of the tobacco particles is glued 20-40% of the surface area of ​​the tobacco particles. After stirring evenly, at least one of the two adjacent tobacco particles has glue on the partial surface area of ​​the tobacco particles, and bonding can be achieved. Similarly, since the bottom surface and the side surface of the tobacco particles are not glued, the release of aerosol after the tobacco particles are heated can be well guaranteed, and the amount of smoke, as well as the axial ventilation volume and porosity of the aerosol generating matrix rod can be guaranteed.

[0041] 2) Further, the method of spraying glue of the present invention is intermittent spraying glue, the tobacco particles of the present invention are directly spread on the conveyor belt, and there is only one layer of tobacco particles on the conveyor belt, the conveyor belt carries the tobacco particles at a fixed speed, and there is a spray head for spraying adhesive above the conveyor belt, and the spray head sprays adhesive on the top surface of the tobacco particles intermittently, so that the tobacco particles on the conveyor belt present glued area, un-glueed area, and glued area are arranged at intervals, and finally the glued tobacco particles, un-glueed tobacco particles, and glued tobacco particles are loaded into the outer tube in batches by the method of blanking, and after cooling, a segmented aerosol generating matrix rod is obtained. The two ends of the segmented aerosol generating matrix rod are short rod segments 11 formed by gluing the gluing tobacco particles, and the middle is a scattered particle segment 12 formed by the un-glueed tobacco particles, so that the short rod segments 11 at both ends can ensure that the un-glueed tobacco particles in the middle do not fall and scatter, and the un-glueed tobacco particles in the middle ensure the axial ventilation and porosity of the aerosol generating matrix rod.

[0042] In general, the present invention firstly adopts the method of spraying sizing to realize partial sizing on the surface of tobacco particles, so as to ensure the release of aerosol after the tobacco particles are heated. Furthermore, by combining intermittent spraying sizing and blanking, a segmented aerosol generating matrix rod can be prepared, wherein the short rod segments 11 formed by gluing tobacco particles at both ends and the scattered particle segment 12 formed by unglued tobacco particles in the middle are formed. In this way, the short rod segments 11 at both ends can ensure that the unglued tobacco particles in the middle do not fall and scatter, while the unglued tobacco particles in the middle ensure the axial ventilation, porosity and smoke volume of the aerosol generating matrix rod. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] Figure 1 A schematic diagram of the structure of the aerosol generating product with segmented cigarette core segments in Example 1;

[0044] The names of the figure marks in the figure description are: 1-smoking core material segment, 2-breathable hollow segment, 3-filter segment, 4-tipping paper, 5-forming paper, 11-short rod segment, 12-scattered particle segment, 21-small hole air flow channel, 22-large hole air flow channel, 23-ventilation hole.

[0045] Figure 2 It is a schematic diagram of the spray sizing process in the process of preparing segmented aerosol generating matrix rods by intermittent spraying;

[0046] Figure 3 It is a top view of tobacco particles after the spray sizing process;

[0047] Figure 4 Schematic diagram of the structure of the segmented aerosol generating matrix rod.

[0048] The names of the figure symbols in the figure description are: S1-conveyor belt, S2-spraying device, S3-sprayed adhesive, S4-tobacco particles, S5-segmented aerosol generating matrix rod, S6-air flow channel, S7-impermeable cigarette paper, S41-glued tobacco particles, S42-unglued tobacco particles, S51-short rod segment formed by gluing gluing tobacco particles, S52-scattered particle segment formed by unglued tobacco particles.

[0049] Figure 5 Schematic diagram of the structure of the aerosol generating product with a segmented aerosol generating matrix rod in Example 2. DETAILED DESCRIPTION

[0050] The present invention is further described in detail below in conjunction with embodiments.

[0051] Those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0052] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the features, integers, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof. It should be understood that when we refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used herein may include wireless connections.

[0053] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0054] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0055] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0056] Example 1

[0057] This embodiment is an aerosol generating product with a segmented aerosol generating matrix rod, which includes a smoke-generating core material segment 1, a breathable hollow segment 2 and a filter segment 3;

[0058] The smoking core material segment 1 includes a segmented aerosol generating matrix rod and an anti-seepage / heat-conducting cigarette paper wrapping the segmented aerosol generating matrix rod, the two ends of the segmented aerosol generating matrix rod are short rod segments 11 formed by gluing tobacco particles, and the middle is a scattered particle segment 12 formed by unglued tobacco particles;

[0059] The air-permeable hollow section 2 and the filter section 3 are wrapped by a shaping paper 5 to form a mouthpiece, and the smoking core material section 1 and the mouthpiece are connected by a tipping paper 4.

[0060] The tube wall of the ventilating hollow section 2 is made of paper in a grooved corrugated shape. There are vent holes 23 on the tube wall of the ventilating hollow section 2, and the area of ​​the vent holes is 1 / 4 of the cross-sectional area of ​​the filter tip.

[0061] like Figure 2-4 As shown, the method for preparing a segmented aerosol generating matrix rod by intermittent spraying comprises the following steps:

[0062] (1) Take the anti-seepage cigarette paper and spread it on the conveyor belt S1, then take the tobacco particles S4 and spread them on the anti-seepage cigarette paper S7, and the conveyor belt S1 runs at a fixed speed carrying the anti-seepage cigarette paper S7 and the tobacco particles S4;

[0063] (2) A spray head (spraying device) S2 for spraying adhesive is provided above the conveyor belt S1, and the spray head intermittently sprays adhesive S3 onto the top of the tobacco particles, so that the tobacco particles on the anti-seepage cigarette paper S7 are arranged alternately in the form of glued areas, un-glueed areas, and glued areas;

[0064] (3) A cigarette folding and rolling device is provided downstream of the conveyor belt in the direction of its running. As the conveyor belt runs, the cigarette folding and rolling device wraps the tobacco particles with the anti-seepage cigarette paper conveyed by the conveyor belt to obtain segmented aerosol generating matrix rod strips. The segmented aerosol generating matrix rod strips are then cut according to demand to obtain segmented aerosol generating matrix rods S5 for aerosol generating products. The gaps between the tobacco particles in the segmented aerosol generating matrix rod form an airflow channel S6 axially penetrating the segmented aerosol generating matrix rod.

[0065] The two ends of the segmented aerosol generating matrix rod are short rod segments S51 formed by gluing tobacco particles, and the middle is a scattered particle segment S52 formed by unglued tobacco particles. The mass ratio of the tobacco particles in the short rod segment to the tobacco particles in the scattered particle segment is 1:6.

[0066] The mass ratio of tobacco particles to adhesive in the gluing area is 1:3. The running speed of the conveyor belt in step (1) is 2 cm / s. The spraying procedure of the sprinkler head in step (2) is to spray for 1 s at intervals of 5 seconds. The area of ​​gluing on the top of the tobacco particles in the gluing area in step (2) accounts for 50% of the surface area of ​​the tobacco particles, that is, the gluing tobacco particles in the gluing area are only glued on the top, and the sides and bottom are not glued. The gram weight of the anti-seepage / thermal conductive paper is 60g / m 2 .

[0067] The particle size of the tobacco particles is 20-30 meshes. The adhesive is selected from shell carboxymethyl cellulose.

[0068] The porosity of the segmented aerosol generating matrix rod finally obtained was measured to be 60%. The axial suction resistance of the segmented aerosol generating matrix rod was 20 Pa / mm.

[0069] Example 2

[0070] like Figure 5 The present embodiment is an aerosol generating product having a segmented aerosol generating matrix rod. The preparation method of the aerosol generating matrix rod is the same as that of Example 1, and the only difference lies in the cigarette structure. The aerosol generating product of the present embodiment is added with a functional segment 6 on the basis of Example 1. When the functional segment 6 is located between the breathable hollow segment 2 and the filter segment 3, the functional segment 6 can be a hollow tube, and the wall of the hollow tube is breathable.

[0071] Comparative Example 1

[0072] The structure of the aerosol generating product is the same as that of Example 1.

[0073] Directly put the scattered tobacco particles into the blender, add a large amount of binder into the blender, then stir and mix evenly, extrude and cool.

[0074] The surface of the smoke-generating particles in the aerosol generating matrix rod finally obtained is almost 100% coated with glue, the porosity is less than 30% after measurement, and the axial suction resistance is as high as 100 Pa / mm.

Claims

1. An aerosol generating product having a segmented aerosol generating matrix rod, characterized in that: It comprises a smoke-generating core material section (1), a breathable hollow section (2) and a filter section (3); The smoking core material segment (1) comprises a segmented aerosol generating matrix rod and an anti-seepage / heat-conducting cigarette paper wrapping the segmented aerosol generating matrix rod, wherein the two ends of the segmented aerosol generating matrix rod are short rod segments (11) formed by gluing tobacco particles, and the middle is a scattered particle segment (12) formed by unglued tobacco particles; The air-permeable hollow section (2) and the filter section (3) are wrapped with forming paper (5) to form a mouthpiece, and the smoking core material section (1) and the mouthpiece are connected with tipping paper (4); Glue application area The area of ​​​​glue application on the top of the tobacco particle accounts for 30-60% of the surface area of ​​the tobacco particle; The porosity of the segmented aerosol generating matrix rod is 40-80%; the axial suction resistance of the segmented aerosol generating matrix rod is 5-40 Pa / mm.

2. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The mass ratio of tobacco particles in the short-stick segment to tobacco particles in the scattered particle segment is 1:10-1:1; the mass ratio of tobacco particles in the gluing area to adhesive is 1:1-1:

4.

3. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The weight of the anti-seepage / thermal conductive paper is 30-70g / m 2 .

4. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The particle size of tobacco particles is 8-60 meshes; the adhesive is selected from chitosan, hydroxyethylated composite modified ethyl cellulose, guar gum, carboxymethyl cellulose, starch, modified starch, plant cellulose, microcrystalline cellulose, hydroxyethyl cellulose, and hydroxyethyl methyl cellulose.

5. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The tube wall of the air-permeable hollow section (2) is made of paper, silica gel, acetate fiber, polylactic acid, and non-woven fabric.

6. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The ventilated hollow section (2) is in the shape of a grooved corrugated wall or a gear, and has a circumferentially distributed small-pore airflow channel (21) penetrating the ventilated hollow section (2), and also has a large-pore airflow channel (22) penetrating the ventilated hollow section (2) at the axial center; the ventilated hollow section (2) has a vent hole (23) on the tube wall, and the area of ​​the vent hole is 1 / 2-7 / 8 of the cross-sectional area of ​​the filter tip.

7. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The shaping paper (5) and the tipping paper (4) are naturally breathable.

8. The aerosol generating product having a segmented aerosol generating matrix rod according to claim 1, characterized in that: The aerosol generating product further comprises a functional section (6), which is located between the smoke-generating core material section (1) and the air-permeable hollow section (2), or between the air-permeable hollow section (2) and the filter section (3), and the functional section (6) has the functions of cooling and converging smoke; When the functional section (6) is located between the air-permeable hollow section (2) and the filter section (3), the functional section (6) is a hollow tube, and the wall of the hollow tube is air-permeable, either having an air-permeable function itself or being air-permeable by means of holes punched in the tube wall.

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