Heating cigarette

Abstract

The utility model provides a heating cigarette. The heating cigarette comprises a fuming section and a heating section, the filter stick section comprises a supporting section, a cavity section and a filtering section which are sequentially and coaxially arranged in the first direction, the fuming section is connected with the end, away from the cavity section, of the supporting section, the fuming section is coaxial with the filter stick section in the first direction, and the supporting section is formed by wrapping supporting section forming paper in the first direction; a paper sheet extending in the first direction is arranged in the supporting section, and the paper sheet is curled and / or folded to form a plurality of paper cavity pipes penetrating through the supporting section in the first direction. According to the heating cigarette provided by the invention, each section is made of a paper material, so that the heating cigarette is easy to degrade. In addition, a plurality of paper cavity pipes are arranged in the supporting section, aerosol can be cooled, smoke at an outlet is prevented from being overheated, release of effective ingredients such as nicotine in the aerosol can be guaranteed, meanwhile, the heating cigarette structure can guarantee parameter consistency and stability of each heating cigarette, and user experience is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of tobacco products, and specifically relates to a heating cigarette. BACKGROUND

[0002] The heating cigarette is a special cigarette using a heating device to release nicotine and flavor components in the cigarette through low-temperature baking or low-temperature heating. The heating temperature of the heating device is about 300 DEG C, which is much lower than the combustion temperature of traditional cigarettes (above 800 DEG C). Since the heating cigarette does not go through the high-temperature cracking stage, the harmful substances produced are greatly reduced, which can reduce the incidence of bronchitis and pneumonia in smokers and greatly reduce the harm of tobacco products to the human body.

[0003] At present, most of the filters and filter rods of the heating cigarette are made of acetate fiber tows. Acetate fiber tows have the advantages of toughness and significant filtration effect, and are widely used in tobacco filtration materials. However, acetate fiber is stable in performance and difficult to decompose, which makes it difficult to degrade the waste acetate fiber filter rod and causes a certain burden to the environment. At the same time, since the heating cigarette has a relatively low amount of smoke release and a small amount of harmful components compared with traditional cigarettes, the filtering and retaining properties of the filter rod are relatively low, so the acetate fiber tows with high adsorption are not completely suitable for the heating cigarette. In addition, due to the shortage of acetate fiber tows, the price of acetate fiber filter rods is relatively high, which is not suitable for large-scale application. In addition, since the support section and the hollow section of the conventional heating cigarette are hollow tubes, the aerosol generated by the cigarette will directly pass through the support section and the hollow section, enter the oral cavity from the filter section, and the distance of the aerosol is relatively short. The aerosol is not fully cooled, and since the water content of the aerosol is relatively high, the inlet perception temperature of the user is relatively high, and the experience is not good. In terms of production and manufacturing, due to the low amount of smoke release of the heating cigarette and the strong adsorption of the acetate fiber tows, the amount of water adsorbed during storage and the amount of smoke components and smoke during heating fluctuate greatly, which makes the weight and resistance of each heating cigarette fluctuate greatly. At the same time, since the support section of the heating cigarette is formed as a hollow tube structure, it is easy to deform, which causes the fluctuation of the circumference length and roundness of each heating cigarette to be relatively large, and the experience consistency of the heating cigarette is relatively low. SUMMARY

[0004] Therefore, the utility model provides a heating cigarette which is easy to degrade and can release effective components such as nicotine in aerosol while cooling the aerosol, and the cigarette structure can reduce the fluctuation of parameters of the heating cigarette and maintain high experience consistency.

[0005] To solve at least one of the above technical problems, the utility model adopts the following technical scheme:

[0006] According to the heating cigarette provided by the embodiment of the utility model,

[0007] The smoking segment;

[0008] The filter stick segment comprises a support segment, a cavity segment and a filter segment which are coaxially arranged in sequence along the first direction, the smoking segment is connected with one end of the support segment away from the cavity segment, and the smoking segment is coaxial with the filter stick segment along the first direction, the support segment is formed by wrapping the support segment forming paper along the first direction, a paper sheet extending along the first direction is arranged in the support segment, and the paper sheet is curled and / or folded to form a plurality of paper cavity tubes penetrating through the support segment along the first direction.

[0009] In an embodiment of the utility model, the paper sheet is curled and / or folded to form four or six paper cavity tubes penetrating through the support segment along the first direction to form a four-leaf-shaped cavity or a six-leaf-shaped cavity in the axial section of the support segment.

[0010] In an embodiment of the utility model, the smoking segment comprises:

[0011] The tobacco core is coaxial with the filter stick segment along the first direction, and the tobacco core is composed of one or more of tobacco raw material filaments or reconstituted tobacco sheet filaments containing a smoking agent;

[0012] The outer cigarette paper is wrapped outside the tobacco core along the first direction.

[0013] In an embodiment of the utility model, the reconstituted tobacco sheet filament containing a smoking agent comprises one or more of roller-pressed sheet filament, dry papermaking sheet filament, wet papermaking sheet filament or thick pulp sheet filament.

[0014] In an embodiment of the utility model, a pleat structure is arranged on the inner wall of each paper cavity tube.

[0015] In an embodiment of the utility model, the cavity segment is a thin-walled cylindrical hollow paper tube arranged along the first direction, one end of the cavity segment is communicated with the plurality of paper cavity tubes in the support segment, and the other end of the cavity segment is connected with the filter segment.

[0016] In an embodiment of the utility model, a plurality of ventilation holes are arranged in the circumferential direction of the cavity segment, and the plurality of ventilation holes are arranged in a single row or a double row along the circumferential direction of the cavity segment.

[0017] In an embodiment of the utility model, the filter segment comprises:

[0018] The paper filter core is formed by winding and / or gathering the paper material along the first direction;

[0019] The filter segment forming paper is wrapped outside the paper filter core along the first direction.

[0020] In an embodiment of the present application, the paper material is a natural fiber obtained by papermaking.

[0021] In an embodiment of the present application, the paper material is subjected to creping and / or pleating treatment.

[0022] In an embodiment of the present application, the filter rod segment further comprises:

[0023] The filter rod segment forming paper is wrapped outside the support segment, the cavity segment and the filter segment along the first direction.

[0024] The above technical solution of the present application has at least one of the following beneficial effects:

[0025] In the heating cigarette, the support segment, the cavity segment and the filter segment of the filter rod segment are all formed by wrapping the forming paper, and the forming paper is non-toxic, harmless and easy to degrade, and has no burden on the environment. By arranging a plurality of paper cavity tubes penetrating through the support segment along the first direction in the support segment, the heat exchange area of the support segment can be increased, so that the temperature of the aerosol is reduced, and the user experience is improved. In addition, by using four or six paper cavity tubes to fill the support segment, compared with the thick-walled hollow tube support segment used in conventional heating cigarettes, the wall thickness of the support segment can be effectively reduced, and the passage area of the support segment can be increased, so that the trapping rate of effective components such as nicotine in the aerosol is reduced, at the same time, the four-leaf or six-leaf paper cavity structure formed by the paper sheet in the support segment is arranged and / or folded, which can ensure that the support segment has appropriate adsorption capacity, reduce the volatility of the water absorption and the smoke components and the smoke volume absorbed in the heating process during the storage process of each heating cigarette, and further reduce the weight and the volatility of the resistance of each heating cigarette. At the same time, by using four or six paper cavity tubes penetrating through the support segment along the first direction for support, the support segment is not easy to deform, and since the distribution density of the paper cavity tubes in the circumferential direction of the support segment is relatively uniform, the circumference length and the roundness of each heating cigarette also have small volatility, so that the parameter consistency and stability of each heating cigarette are ensured, and the user experience is improved. BRIEF DESCRIPTION OF DRAWINGS

[0026] Figure 1 It is a sectional view of the heating cigarette in an embodiment of the present application;

[0027] Figure 2 It is an axial sectional view of the support segment of the heating cigarette in an embodiment of the present application;

[0028] Figure 3 It is a structural schematic diagram of a natural cellulose molecule;

[0029] Figure 4 It is a structural schematic diagram of a cellulose acetate molecule;

[0030] Figure 5A cross-sectional view of the heated cigarette in Comparative Example 1;

[0031] Figure 6 A cross-sectional view of the heated cigarette in another embodiment of the present application.

[0032] Reference signs:

[0033] 100, smoking segment; 110, tobacco core; 120, outer cigarette paper;

[0034] 200, filter rod segment; 210, support segment; 211, paper cavity tube; 2111, four-leaf-shaped cavity; 2112, six-leaf-shaped cavity; 2113, irregularly dense cavity; 2114, irregularly sparse cavity; 220, cavity segment; 230, filter segment; 231, paper filter core; 232, filter segment forming paper; 240, filter rod segment forming paper;

[0035] 300, first smoking segment; 310, first tobacco core; 410, acetate fiber support segment; 420, acetate fiber cavity segment; 430, acetate fiber filter segment; 431, first forming paper; 432, acetate fiber bundle; 440, first filter rod segment forming paper;

[0036] 500, second smoking segment; 510, second tobacco core; 610, paper support segment; 620, paper cavity segment; 630, paper filter segment; 631, second forming paper; 632, second paper filter core; 640, second filter rod segment forming paper. DETAILED DESCRIPTION

[0037] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme of the embodiments of the present application will be described clearly and completely below in combination with the drawings of the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the described embodiments of the present application, all other embodiments obtained by those skilled in the art belong to the scope of protection of the present application.

[0038] Next, a heated cigarette according to an embodiment of the present application will be described in detail below in combination with the drawings.

[0039] Figure 1 A cross-sectional view of the heated cigarette provided by an embodiment of the present application is shown in FIG. 1. Figure 1As shown, the heating cigarette of the embodiment of the utility model can include: smoke generating section 100 and filter stick section 200. Among them, filter stick section 200 includes the support section 210, cavity section 220 and filter section 230 that are coaxially arranged in turn along the first direction (i.e. the length direction or axial direction of heating cigarette), smoke generating section 100 is connected with the end of support section 210 away from cavity section 220, smoke generating section 100 is used to be heated to generate aerosol and smoke generating section 100 is coaxial with filter stick section 200 along the first direction, the aerosol generated when smoke generating section 100 is heated at low temperature or roasted at low temperature will pass through support section 210, cavity section 220 and filter section 230 of filter stick section 200 in turn along the first direction and finally enter the oral cavity of user. Support section 210 is formed by wrapping support section forming paper along the first direction, paper sheet extending along the first direction is arranged in support section 210, paper sheet is curled and / or folded to form a plurality of paper cavity tubes 211 penetrating through support section 210 along the first direction, support section 210 is used to ensure the support performance of heating cigarette, to avoid the collapse deformation of heating cigarette during production, transportation or use. Cavity section 220 is used to heat exchange and cool aerosol when aerosol passes through, and filter section 230 is used to filter harmful components in aerosol.

[0040] In the embodiment, support section 210 is formed by wrapping support section forming paper, and the forming paper is low in price, which can effectively reduce production cost. Meanwhile, the forming paper is non-toxic, harmless and easy to degrade, and has good environmental protection performance. In addition, by arranging paper sheet extending along the first direction in support section 210 and curling and / or folding the paper sheet into a plurality of paper cavity tubes 211 penetrating through support section 210 along the first direction, the plurality of paper cavity tubes 211 respectively abut against the inner wall of support section 210 to support the shape of cigarette, so that the axial cross section of support section 210 is formed into a porous cavity, thereby effectively increasing the heat exchange area in support section 210, the aerosol generated after smoke generating section 100 is heated can pass through the plurality of paper cavity tubes 211 respectively and heat exchange through the tube wall of each paper cavity tube 211, so as to reduce the outlet temperature of aerosol and improve user experience. In addition, by using the plurality of paper cavity tubes 211 to fill support section 210, compared with the thick-walled hollow tube support section 210 used in conventional heating cigarettes, the wall thickness of support section 210 can be effectively reduced while ensuring the support performance, the passing area of support section 210 is increased, the excessive trapping of nicotine and other effective components in aerosol by the tube wall of support section 210 is avoided, the trapping rate of nicotine and other effective components in aerosol is reduced, and user experience is further improved.

[0041] Specifically, as Figure 2As shown, the paper sheet is rolled and / or folded to form four or six paper cavity tubes 211 penetrating through the support section along the first direction, so that the axial cross section of the support section is formed into a four-leafed cavity 2111 or a six-leafed cavity 2112. In this way, the four or six paper cavity tubes 211 can respectively abut against the inner wall of the support section 210, so that the shape of the cigarette can be kept from being deformed. Meanwhile, the rolling and / or folding of the paper sheet to form the plurality of paper cavity tubes 211 penetrating through the support section 210 along the first direction can effectively increase the heat exchange area in the support section 210, reduce the outlet temperature of the aerosol, and improve the user experience. In addition, since the plurality of paper cavity tubes 211 respectively abut against the smoking section 100, when the heating element is inserted into the end of the smoking section 100 away from the filter rod section 200, the movement of the tobacco core 110 in the smoking section 100 along the first direction can be avoided, and the deformation of the heated cigarette can be avoided. On the other hand, the structure of the four-leafed cavity 2111 or the six-leafed cavity 2112 formed by the paper sheet does not excessively adsorb moisture during storage, and can also smoothly pass the smoke aerosol during heating of the heated cigarette, without excessively adsorbing the aerosol, so as to ensure that the support section 210 has appropriate adsorption capacity, reduce the fluctuation of the total amount of moisture absorbed during storage and the aerosol adsorbed during heating of each heated cigarette, and further reduce the fluctuation of the weight and the draw resistance of each heated cigarette. In addition, the structure of the four-leafed cavity 2111 or the six-leafed cavity 2112 can stably support the support section 210, so that the support section 210 is not easily deformed, and since the distribution density of the paper cavity tubes 211 in the circumferential direction of the support section 210 is relatively uniform, the fluctuation of the circumference and the roundness of each heated cigarette is also small, so as to ensure the consistency and stability of the parameters of each heated cigarette, and improve the user experience. Figure 1 As shown, the smoking section 100 comprises a tobacco core 110 and an outer cigarette paper 120. The tobacco core 110 is coaxial with the filter rod section 200 along the first direction, and the tobacco core 110 is composed of one or more of tobacco raw material filaments or reconstituted tobacco sheet filaments containing a smoking agent. The outer cigarette paper 120 is wrapped outside the tobacco core 110 along the first direction. The reconstituted tobacco sheet filament containing a smoking agent includes one or more of roll-pressed sheet filaments, dry papermaking sheet filaments, wet papermaking sheet filaments, or thick pulp sheet filaments. The tobacco raw material filaments or the reconstituted tobacco sheet filaments containing a smoking agent can be orderly aggregated and filled along the first direction, that is, the length direction of the raw material filaments or the reconstituted tobacco sheet filaments is consistent with the first direction. In other embodiments of the present application, the tobacco raw material filaments or the reconstituted tobacco sheet filaments containing a smoking agent can be randomly aggregated and filled, and the aggregation form of the tobacco raw material filaments or the reconstituted tobacco sheet filaments containing a smoking agent can be determined according to product production requirements, which is not limited in the present application.

[0042] In an embodiment of the utility model, the surface of paper sheet is provided with multiple equal-width or unequal-width pleat structures, so that multiple equal-width or unequal-width pleat structures are arranged on the inner wall of each paper cavity tube 211. By arranging the pleat structures on the inner wall of the paper cavity tube 211, the heat exchange area of the inner wall of the paper cavity tube 211 can be further increased, and the cooling effect on the aerosol can be improved. At the same time, by adjusting the number of pleat structures, the cooling effect on the aerosol can be improved while avoiding excessive trapping of nicotine and other effective components in the aerosol, reducing the trapping rate of nicotine and other effective components in the aerosol, and further improving the user experience.

[0043] As shown in Figure 1 The cavity section 220 is a thin-walled cylindrical hollow paper tube arranged in the first direction, one end of the cavity section 220 is in communication with the multiple paper cavity tubes 211 in the support section, and the other end of the cavity section 220 is connected with the filter section 230. The thin-walled cylindrical hollow paper tube formed by the cavity section 220 can reduce the trapping of the aerosol flowing through, deliver most of the aerosol to the user, and improve the user experience. In addition, the paper tube is low in price, can effectively reduce the production cost, and is non-toxic and harmless and easy to degrade, with good environmental protection performance.

[0044] In an embodiment of the utility model, multiple ventilation holes are arranged in the circumferential direction of the cavity section 220, and the multiple ventilation holes are arranged in a single row or a double row in the circumferential direction of the cavity section 220.

[0045] Specifically, the aerosol generated by the smoking section 100 heated in the first direction flows through the support section 210, the cavity section 220 and the filter section 230 in turn. The heat exchange paths between the aerosol and the external environment mainly include convective heat exchange and heat conduction on the inner wall surface of the paper cavity tube 211 in the support section 210, and convective heat exchange between the inner wall surface of the support section forming paper and the environment. After the aerosol enters the cavity section 220 with ventilation holes, on the one hand, heat exchange and cooling can be carried out between the wall surface of the cavity section 220 and the ventilation holes and the external environment. On the other hand, when the aerosol flows from the paper cavity tube 211 with a relatively small diameter into the cavity section 220 with a relatively large diameter, the change of the airflow field also promotes the heat exchange and cooling of the aerosol. Thus, the temperature of the aerosol is further reduced.

[0046] As shown in Figure 1As shown, the filter section 230 comprises a paper filter 231 and a filter section forming paper 232. The paper filter 231 is formed by winding and / or gathering paper materials along a first direction, and the fibers of the paper materials of the paper filter 231 are arranged in order along the first direction. The filter section forming paper 232 is wrapped outside the paper filter 231 along the first direction. That is, the length direction of the fibers of the paper materials of the paper filter 231 is consistent with the first direction. In addition, the paper filter 231 and the filter section forming paper 232 are low in cost, which can effectively reduce the production cost. Moreover, the paper filter 231 and the filter section forming paper 232 are non-toxic, harmless and easy to degrade, and have good environmental performance.

[0047] In an embodiment of the present application, the paper materials of the paper filter 231 are obtained by papermaking of natural cellulose. Specifically, Figure 3 a structure diagram of a natural cellulose molecule is shown, Figure 4 a structure diagram of a cellulose acetate molecule is shown, and Figure 3 and Figure 4 As shown, the natural cellulose molecule constituting the natural fiber has more hydroxyl groups (active groups) than the cellulose acetate molecule, so the paper filter 231 composed of the paper materials obtained by papermaking of the natural fiber has stronger water absorption than the cellulose acetate filament, and can fully absorb the moisture in the aerosol, which is conducive to further reducing the temperature of the outlet flue gas.

[0048] In an embodiment of the present application, the paper materials of the paper filter 231 are subjected to creping and pleating treatment. By creping and pleating the paper materials of the paper filter 231, the filtration area of the paper filter 231 can be further increased, so that the paper filter 231 can further filter harmful components in the aerosol.

[0049] In some other embodiments of the present application, the paper materials of the paper filter 231 are subjected to calendering treatment. Since the paper filter 231 composed of natural cellulose molecules has stronger water absorption than the cellulose acetate filament, it also has stronger adsorption of effective components such as nicotine in the aerosol. Therefore, by calendering the paper materials of the paper filter 231, on the one hand, the hardness of the paper filter 231 can be increased, and on the other hand, the interception of effective components such as nicotine can be reduced. As shown, Figure 1 As shown, the filter rod section 200 further comprises a filter rod section forming paper 240, which is wrapped outside the support section 210, the cavity section 220 and the filter section 230 along the first direction. The filter rod section forming paper 240 is provided with through holes corresponding to the through-holes in the circumferential direction of the cavity section 220. The smoking section 100 and the filter rod section 200 are twisted into a finished product of a heating cigarette by an outer tipping paper (not shown). The filter rod section forming paper 240 and the outer tipping paper are both paper materials, which are low in cost and easy to degrade.

[0050] In one embodiment of this utility model, the heated cigarette is suitable for use with a matching smoking device that has inner core heating or outer perimeter heating functions. In the cigarette structure of the heated cigarette, the length ratio of the smoke-generating section 100 to the filter rod section 200 is between 1:1 and 1:3. For example, the length ratio can be 1:1, 1:2, or 1:3, and this application does not impose any limitations.

[0051] The heated cigarette of this utility model is described in detail below through specific embodiments. Since the heated cigarette needs to be used with a heated smoking device, to ensure consistency of the smoking conditions when comparing the effects of the cigarettes in this utility model embodiment and the comparative example, the following smoking method was used for testing with a smoking machine. The specific smoking method is as follows: the heated cigarettes of this utility model embodiment and the comparative example cigarettes were placed in the same heated smoking device for smoking. The smoking machine parameters were set to bell-shaped wave smoking, the smoking scheme to the Canadian depth smoking method, the smoking volume to 55 mL, the duration of each puff to 2 seconds, the smoking interval to 28 seconds, and 8 puffs of aerosol to be collected per cigarette. The heating method of the heated cigarette includes, but is not limited to, electric heating, electromagnetic heating, and infrared heating. Simultaneously, to compare the atomization effect of the cigarettes in this utility model embodiment and the comparative example cigarettes, and the amount of nicotine inhaled by the smoker from the aerosol, a glass fiber filter smoke collector was used to collect aerosols for measuring the aerosol collection amount. The aerosol collection was then used for gas chromatography to determine the nicotine content. To compare the temperature sensation of the smoke exiting the cigarette of this embodiment and the comparative example when consumers smoke the cigarette, a thermocouple was fixed 1 mm from the center of the smoke exit of the heated cigarette sample. The thermocouple was connected to a temperature data acquisition system to measure the temperature of the smoke at the mouthpiece of the aerosol-generating product during inhalation.

[0052] Comparative Example 1

[0053] like Figure 5 As shown, Figure 5 This is a cross-sectional view of the heated cigarette in Comparative Example 1, as shown below. Figure 5As shown in the heating cigarette in Comparative Example 1 includes a first smoking segment 300 and an acetate filter rod segment composed of an acetate support segment 410, an acetate cavity segment 420 and an acetate filter segment 430 arranged coaxially in sequence along a first direction. The first smoking segment 300 is formed by wrapping cigarette paper along the first direction, and the first tobacco core 310 of the first smoking segment 300 is filled with rolled sheet tobacco with a smoking agent added, and the rolled sheet tobacco is filled in disorder along the first direction. The first filter rod segment forming paper 440 is wrapped outside the acetate support segment 410, the acetate cavity segment 420 and the acetate filter segment 430 along the first direction. The acetate support segment 410 is a thick-walled hollow tube made of acetate, and the acetate cavity segment 420 is a thin-walled hollow tube made of acetate, i.e. the wall thickness of the acetate cavity segment 420 is less than that of the acetate support segment 410. The acetate filter segment 430 includes a first forming paper 431 and a gathered acetate fiber bundle 432, the acetate fiber bundle 432 is arranged along the first direction, and the fibers of the acetate fiber bundle 432 are arranged in order along the first direction, and the first forming paper 431 is wrapped outside the acetate fiber bundle 432 along the first direction. In addition, the length ratio of the first smoking segment 300 to the acetate filter rod segment is 1:2.5, and the first smoking segment 300 and the acetate filter rod segment are twisted into a finished heating cigarette by tipping paper. Then the heating cigarette is placed in a heating smoking set, and the aerosol trapping content, nicotine content and outlet smoke temperature of the smoke are tested using the above test method.

[0054] Example 1

[0055] As Figure 6 shown, Figure 6 is a cross-sectional view of the heating cigarette in another embodiment of the present application, and Figure 6As shown, the heated cigarette in Example 1 includes a second smoking segment 500 and a filter rod segment composed of a paper support segment 610, a paper cavity segment 620 and a paper filter segment 630 arranged coaxially in sequence along a first direction. The second smoking segment 500 is formed by wrapping cigarette paper along the first direction, and the second tobacco core 510 of the second smoking segment 500 is filled with rolled sheet tobacco with added smoking agent, and the rolled sheet tobacco is filled in disorder along the first direction. The second filter rod segment forming paper 640 is wrapped outside the paper support segment 610, the paper cavity segment 620 and the paper filter segment 630 along the first direction. The paper support segment 610 is a thick-walled hollow tube made of paper, and the paper cavity segment 620 is a thin-walled hollow tube made of paper, i.e. the wall thickness of the paper cavity segment 620 is less than that of the paper support segment 610. The paper filter segment 630 includes a second forming paper 631 and a second paper filter core 632, the second paper filter core 632 is formed by winding and / or gathering paper along the first direction, and the paper of the second paper filter core 632 is subjected to wrinkling and pleating treatment, and the fibers of the paper of the second paper filter core 632 are arranged in order along the first direction. The second forming paper 631 is wrapped outside the second paper filter core 632 along the first direction. In addition, the length ratio of the second smoking segment 500 to the filter rod segment is 1:2.5, and the second smoking segment 500 and the filter rod segment are twisted into a finished heated cigarette by tipping paper. Then the heated cigarette is placed in a heating smoking set, and the aerosol trapping content, nicotine content and outlet smoke temperature of the smoke are tested using the above test method.

[0056] Specifically, the aerosol comparison results of the heated cigarette in Comparative Example 1 and the heated cigarette in Example 1 are shown in Table 1 below.

[0057] Table 1 Comparison results of smoke of heated cigarettes in Comparative Example 1 and Example 1

[0058]

[0059]

[0060] As shown in Table 1, since the structures of the heated cigarettes in Comparative Example 1 and Example 1 are the same, the acetate fiber support section 410 in Comparative Example 1 and the support section in Example 1 are both thick-walled hollow tubes, and the connection between the first smoking section 300 and the acetate fiber support section 410 in Comparative Example 1 and the connection between the second smoking section 500 and the paper support section 610 in Example 1 both form a thick-walled annular cross section, when the aerosol flows through the thick-walled annular cross section, a part of the aerosol will be trapped, thereby causing the aerosol trapping content and the nicotine content of the cigarettes in Comparative Example 1 and Example 1 to be relatively low. In addition, since the paper material composed of natural cellulose molecules is used in each section of the filter rod section of the heated cigarette in Example 1, the natural cellulose molecules have more hydroxyl groups (active groups) than the acetate cellulose molecules, so the second paper filter core 632 composed of natural cellulose molecules has a stronger trapping effect on the main components of the aerosol of the heated cigarette than the acetate fiber bundle 432, and also has a stronger water absorption capacity, so the aerosol trapping content, the nicotine content, and the outlet smoke temperature of the smoke in Example 1 are all lower than those in Comparative Example 1. That is, the cooling effect of the cigarette in Example 1 is better than that in Comparative Example 1. In summary, in order to further improve the release amount of nicotine components in the aerosol and improve the sensory quality of the cigarette, the structure of the support section can be changed to reduce the trapping of the aerosol by the thick-walled annular cross section, and specific reference can be made to Examples 2-5.

[0061] Example 2

[0062] As Figure 1 and Figure 2As shown, the heated cigarette in Example 2 comprises a smoking segment 100 and a filter rod segment 200 coaxially arranged with the smoking segment 100 along a first direction, the filter rod segment 200 comprising a support segment 210, a cavity segment 220 and a filter segment 230 coaxially arranged along the first direction in sequence. The smoking segment 100 comprises a tobacco core 110 and an outer cigarette paper 120 wrapped outside the tobacco core 110 along the first direction, and the tobacco core 110 is filled with tobacco shreds containing smoking agents in disorder along the first direction. The support segment 210 is formed by wrapping a support segment forming paper along the first direction, and a paper sheet extending along the first direction is arranged in the support segment 210, and the paper sheet is curled and / or folded in the support segment 210 to form four lobe-shaped paper cavity tubes penetrating through the support segment 210 along the first direction, and the four lobe-shaped paper cavity tubes form a four-lobed cavity 2111 in the axial cross section of the support segment 210, and a plurality of equal-width pleat structures are arranged on the inner wall of each lobe-shaped paper cavity tube. The cavity segment 220 is a thin-walled cylindrical hollow paper tube arranged along the first direction. The filter segment 230 comprises a paper filter core 231 and a filter segment forming paper 232, the paper filter core 231 is formed by winding and / or gathering paper along the first direction, the paper of the paper filter core 231 is subjected to wrinkling, pleating and polishing in sequence, and the fibers of the paper of the paper filter core 231 are arranged in order along the first direction, and the filter segment forming paper 232 is wrapped outside the paper filter core 231 along the first direction. The length ratio of the smoking segment 100 to the filter rod segment 200 is 1:2.5, and the smoking segment 100 and the filter rod segment 200 are twisted into a finished heated cigarette by tipping paper. Then the heated cigarette is placed into a heating smoking set, and the aerosol trapping content, nicotine content and outlet smoke temperature of the smoke are tested using the above test method.

[0063] Specifically, the heated cigarette in Example 1 and the heated cigarette aerosol in Example 2 are compared as shown in Table 2 below.

[0064] Table 2 Comparison results of smoke of heated cigarettes in Comparative Example 1 and Examples 1-2

[0065]

[0066] As shown in Table 2, because four lobe-shaped paper cavity tubes are arranged in the support section 210 in the first direction and pass through the support section 210, the axial cross section of the support section 210 is formed into four lobe-shaped cavities 2111, which effectively reduces the wall thickness of the outer wall of the support section 210, greatly reduces the interception area of the connection between the smoking section 100 and the support section 210 to the aerosol, and reduces the trapping effect on the aerosol. Therefore, the aerosol trap content and nicotine content in the smoke of the heated cigarette in Example 2 are greater than those in the smoke of the heated cigarette in Comparative Example 1 and Example 1. The aerosol generated after the smoking section 100 in Example 2 is heated flows through the support section 210 provided with four lobe-shaped paper cavity tubes, the cavity section 220 and the filter section 230. Specifically, the aerosol exchanges heat with the inner surface of the four lobe-shaped paper cavity tubes of the support section 210, the support section forming paper wall and the environment; after the aerosol enters the cavity section 220 with ventilation holes, it exchanges heat with the outside environment through the wall surface of the cavity section 220 and the ventilation holes. On the other hand, when the aerosol flows from the lobe-shaped paper cavity tube 211 with a small diameter into the cavity section 220 with a large diameter, the change of the airflow field also promotes the heat exchange and cooling of the aerosol. At the same time, the water absorption of the paper material is greater than that of the acetate material, and the reduction of the water content in the aerosol also promotes the reduction of the outlet smoke temperature. Therefore, the outlet smoke temperature of the heated cigarette structure of Example 2 is lower than that of the heated cigarette structure of Comparative Example 1, and can also achieve a cooling effect close to that of the heated cigarette structure of Example 1, and the outlet smoke temperatures of the two are both lower than 60℃.

[0067] Example 3

[0068] As Figure 1 and Figure 2As shown, the heated cigarette in Example 3 comprises a smoking segment 100 and a filter rod segment 200 coaxially arranged with the smoking segment 100 along a first direction, the filter rod segment 200 comprising a support segment 210, a cavity segment 220 and a filter segment 230 coaxially arranged along the first direction in sequence. The smoking segment 100 comprises a tobacco core 110 and an outer cigarette paper 120 wrapped outside the tobacco core 110 along the first direction, and the tobacco core 110 is filled with tobacco shreds containing smoking agents in disorder along the first direction. The support segment 210 is formed by wrapping a support segment forming paper along the first direction, and a paper sheet extending along the first direction is arranged in the support segment 210, and the paper sheet is curled and / or folded in the support segment 210 to form six lobe-shaped paper cavity tubes penetrating through the support segment 210 along the first direction to form a six-lobed cavity 2112 in the axial cross section of the support segment 210, and a plurality of equal-width pleat structures are arranged on the inner wall of each lobe-shaped paper cavity tube. The cavity segment 220 is a thin-walled cylindrical hollow paper tube arranged along the first direction. The filter segment 230 comprises a paper filter core 231 and a filter segment forming paper 232, the paper filter core 231 is formed by winding and / or gathering paper along the first direction, the paper of the paper filter core 231 is subjected to wrinkling, pleating and polishing in sequence, and the fibers of the paper of the paper filter core 231 are arranged in order along the first direction, and the filter segment forming paper 232 is wrapped outside the paper filter core 231 along the first direction. The length ratio of the smoking segment 100 to the filter rod segment 200 is 1:2.5, and the smoking segment 100 and the filter rod segment 200 are twisted into a finished heated cigarette by tipping paper. Then the heated cigarette is placed into a heating smoking set, and the aerosol trapping content, nicotine content and outlet smoke temperature of the smoke are tested using the above test method.

[0069] Specifically, the heated cigarette in Example 2 and the heated cigarette aerosol comparison results of Example 3 are shown in Table 3 below.

[0070] Table 3 Comparison results of smoke of heated cigarettes in Comparative Example 1 and Examples 1-3

[0071]

[0072] As shown in Table 3, in the case of other consistent structures, by arranging six lobe-shaped paper cavity tubes penetrating through the support section 210 in the first direction inside the support section 210, the heat exchange area inside the support section 210 is larger, and the convection heat exchange between the aerosol and the inner surface of the paper cavity tube 211 is more sufficient. At the same time, due to the fact that the cross-sectional structure change of the six-lobed cavity 2112 in the support section 210 of the embodiment 3 at the connection with the cavity section 220 is larger than the cross-sectional structure change of the four-lobed cavity 2111 in the support section 210 of the embodiment 2 at the connection with the cavity section 220, the fluid flow transformation of the aerosol flowing from the six-lobed cavity 2112 in the support section 210 into the cavity section 220 in the embodiment 3 is also larger, which further promotes the convection heat exchange, so that the outlet flue gas temperature of the embodiment 3 is further reduced compared with the comparative example 1 and the embodiment 2. At the same time, the specific surface area of the six-lobed cavity 2112 in the support section 210 of the embodiment 3 is larger than the specific surface area of the four-lobed cavity 2111 in the support section 210 of the embodiment 2, and the trapping effect on the aerosol and nicotine is greater, so that the aerosol trap content and nicotine content in the flue gas of the embodiment 3 are slightly lower than the aerosol trap content and nicotine content of the embodiment 2, but higher than the aerosol trap content and nicotine content of the comparative example 1.

[0073] However, after a large number of tests, the number of paper cavity tubes 211 arranged inside the support section 210 is not the more the better, and specific reference can be made to the embodiment 4 and the embodiment 5.

[0074] Embodiment 4

[0075] As Figure 1 and Figure 2As shown, the heated cigarette in Example 4 includes a smoking segment 100 and a filter rod segment 200 coaxially arranged with the smoking segment 100 along a first direction, the filter rod segment 200 including a support segment 210, a cavity segment 220 and a filter segment 230 coaxially arranged along the first direction in sequence. The smoking segment 100 includes a tobacco core 110 and an outer cigarette paper 120 wrapped outside the tobacco core 110 along the first direction, and the tobacco core 110 is filled with tobacco shreds containing smoking agents in disorder along the first direction. The support segment 210 is formed by wrapping a support segment forming paper along the first direction, and the support segment 210 is provided with a paper sheet extending along the first direction, and the paper sheet is curled and / or folded in the support segment 210 to form a plurality of irregularly dense cavity tubes along the first direction and penetrating through the support segment 210, and the plurality of irregularly dense cavity tubes form an irregularly dense cavity 2113 in the axial cross section of the support segment 210, and the inner wall of each irregularly dense cavity tube is respectively provided with a plurality of equal-width pleat structures. The cavity segment 220 is a thin-walled cylindrical hollow paper tube arranged along the first direction. The filter segment 230 includes a paper filter core 231 and a filter segment forming paper 232, the paper filter core 231 is formed by winding and / or gathering paper along the first direction, the paper of the paper filter core 231 is subjected to wrinkling, pleating and polishing in sequence, and the fibers of the paper of the paper filter core 231 are arranged in order along the first direction, and the filter segment forming paper 232 is wrapped outside the paper filter core 231 along the first direction. The length ratio of the smoking segment 100 to the filter rod segment 200 is 1:2.5, and the smoking segment 100 and the filter rod segment 200 are twisted into a finished heated cigarette by tipping paper. Then the heated cigarette is placed into a heating smoking set, and the aerosol trapping content, nicotine content and outlet smoke temperature of the smoke are tested by using the above test method.

[0076] Specifically, the comparison results of the heated cigarette in Example 3 and the heated cigarette aerosol in Example 4 are shown in Table 4 below.

[0077] Table 4 Comparison results of the smoke of the heated cigarettes in Comparative Example 1 and Examples 1-4

[0078] Smoke gas parameter index Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Aerosol trap content (mg / cig) 30.25 28.41 35.02 34.76 33.66 Nicotine content (mg / cig) 0.705 0.675 0.735 0.728 0.712 Outlet smoke gas temperature (°C) 60.12 58.85 59.12 58.45 57.14

[0079] As shown in Table 4, in the case of other consistent structures, the greater the specific surface area of the paper cavity tube 211 inside the support section 210, that is, the more the number of paper cavity tubes 211 inside the support section 210, the more sufficient the heat exchange between the aerosol and the cavity tube wall, the better the effect of reducing the smoke temperature, but it will also increase the adsorption of aerosol and nicotine. Therefore, when the through-hole paper cavity structure inside the support section 210 changes from the six-leaf-shaped cavity 2112 in Example 3 to the irregular dense cavity 2113 in Example 4, although the outlet smoke temperature of the cigarette is lower than that of Comparative Example 1 and Example 3, the adsorption of aerosol and nicotine is also stronger, so although the aerosol trapping content and nicotine content of Example 4 are greater than those of Comparative Example 1, the contents are reduced compared with Examples 2 and 3.

[0080] Example 5

[0081] As shown in Figure 1 and Figure 2 , the heat-not-burn cigarette in Example 5 includes a smoking section 100 and a filter rod section 200 coaxially arranged with the smoking section 100 along a first direction, the filter rod section 200 including a support section 210, a cavity section 220, and a filter section 230 coaxially arranged along the first direction in sequence. The smoking section 100 includes a tobacco core 110 and an outer cigarette paper 120 wrapped outside the tobacco core 110 along the first direction, and the tobacco core 110 is filled with tobacco leaves in disorder along the first direction. The support section 210 is formed by wrapping the support section forming paper along the first direction, and the support section 210 is provided with a paper sheet extending along the first direction, and the paper sheet is crimped and / or folded in the support section 210 to form a plurality of irregular loose cavities 2114 along the first direction through the support section 210, and the inner wall of each irregular loose cavity is provided with a plurality of equal-width pleat structures. The cavity section 220 is a thin-walled cylindrical hollow paper tube arranged along the first direction. The filter section 230 includes a paper filter core 231 and a filter section forming paper 232, the paper filter core 231 is formed by winding and / or gathering the paper along the first direction, the paper of the paper filter core 231 is subjected to wrinkling, pleating, and polishing treatment in sequence, and the fibers of the paper of the paper filter core 231 are arranged in order along the first direction, and the filter section forming paper 232 is wrapped outside the paper filter core 231 along the first direction. The length ratio of the smoking section 100 to the filter rod section 200 is 1:2.5, and the smoking section 100 and the filter rod section 200 are twisted into a finished heat-not-burn cigarette by tipping paper. Then the heat-not-burn cigarette is placed into a heating smoking set, and the aerosol trapping content, nicotine content, and outlet smoke temperature of the smoke are tested using the above test method.

[0082] Specifically, the aerosol comparison results of the heat-not-burn cigarettes in Example 4 and Example 5 are shown in the following Table 5.

[0083] Table 5 Comparison results of smoke of heated cigarettes in Comparative Example 1, Example 4 and Example 5

[0084] Smoke gas parameter index Comparative Example 1 Example 1 Example 2 Example 3 Example 4 Example 5 Aerosol trap content (mg / cig) 30.25 28.41 35.02 34.76 33.66 34.75 Nicotine content (mg / cig) 0.705 0.675 0.735 0.728 0.712 0.717 Outlet smoke gas temperature (°C) 60.12 58.85 59.12 58.45 57.14 58.20

[0085] As shown in Table 5, under the condition of consistent other structures, the greater the specific surface area of the paper cavity tube 211 inside the support section 210, that is, the more the number of paper cavity tubes 211 inside the support section 210, the more sufficient the heat exchange between the aerosol and the cavity tube wall surface, and the better the smoke cooling effect, which is consistent with the cases of Example 3 and Example 4. By adjusting the number of paper cavity tubes 211 in Example 5, although the specific surface area of the paper cavity tube 211 inside the support section 210 is reduced, the aerosol trapping content and nicotine content in the smoke of Example 5 are still lower than those in the smoke of Example 2 and Example 3.

[0086] Further, referring to Table 6, under the condition that the cigarette formula of each comparative example and each example is stable, the tobacco filler density and the cigarette specification size are consistent, the weight, circumference, roundness and draw resistance of 100 samples in each comparative example and each example are detected by a comprehensive test platform, and the average value, standard deviation and unqualified number of each parameter are calculated and counted to investigate the parameter fluctuation of the cigarette products of the comparative examples and the examples.

[0087] Table 6 Comparison results of weight, circumference, roundness and draw resistance of heated cigarettes in Comparative Example 1, Examples 1-5

[0088]

[0089]

[0090] As shown in Table 6, in the case of the same structure of Comparative Example 1 and Example 1, since the connection between the first smoking segment 300 and the acetate fiber support segment 410 in Comparative Example 1 and the connection between the second smoking segment 500 and the paper support segment 610 in Example 1 both form a thick-walled annular cross section, a part of the aerosol is trapped when the aerosol flows through the thick-walled annular cross section. At the same time, since the second paper filter core 632 composed of natural cellulose molecules has a stronger trapping effect on the main components of the heated cigarette aerosol and a stronger water absorption capacity than the acetate fiber bundle 432, the fluctuation of the water adsorption and the amount of smoke components and smoke adsorbed during the heating process of each heated cigarette in Example 1 is larger than that of each heated cigarette in Comparative Example 1, and thus the fluctuation of the weight and the draw resistance of each heated cigarette in Example 1 is larger. Therefore, although the standard deviation of the weight index in Example 1 is slightly lower than that of Comparative Example 1, the standard deviation of the draw resistance in Example 1 is much larger than that of Comparative Example 1. Since the acetate fiber support segment 410 in Comparative Example 1 and the support segment in Example 1 are both thick-walled hollow tubes, they are more prone to deformation, and thus the standard deviations of the circumference index and the roundness index of Comparative Example 1 and Example 1 are similar.

[0091] In Example 2 and Example 3, four leaf-shaped paper cavity tubes and six leaf-shaped paper cavity tubes are respectively arranged in the support segment 210, thereby reducing the wall thickness of the outer wall of the support segment 210 in Example 2 and Example 3, and the trapping area of the connection between the smoking segment 100 and the support segment 210 is greatly reduced, which reduces the trapping effect on the aerosol. Therefore, the trapping effect of the support segment 210 in Example 2 and Example 3 on the aerosol is lower than that of Comparative Example 1, and thus the fluctuation of the water adsorption and the amount of smoke components and smoke adsorbed during the heating process of each heated cigarette in Example 2 and Example 3 is lower than that of each heated cigarette in Comparative Example 1, and thus the fluctuation of the weight and the draw resistance of each heated cigarette in Example 2 and Example 3 is lower than that of Comparative Example 1 and Example 1, i.e., the standard deviations of the weight and the draw resistance in Example 2 and Example 3 are lower than those of Comparative Example 1, the standard deviations of the weight and the draw resistance in Example 2 are similar to those in Example 1, and the standard deviations of the weight and the draw resistance in Example 3 are significantly lower than those in Comparative Example 1 and Example 1. By using paper cavity tubes to support the support segment 210, the support segment 210 is less prone to deformation, and thus the standard deviations of the circumference index and the roundness index in Example 2 and Example 3 are lower than those of Comparative Example 1 and Example 1. The consistency and stability of the parameters of each heated cigarette in Example 2 and Example 3 are higher.

[0092] Further, in Example 4, a plurality of irregular shaped paper cavity tubes are arranged to form irregular dense cavities 2113. Due to the same reasons as in Example 2 and Example 3, the standard deviation of weight in Example 4 is lower than that in Comparative Example 1 and similar to that in Example 2. However, due to the irregular dense cavities 2113 having more irregular pores than the regular four-leaf cavities 2111 and the regular six-leaf cavities 2112 in Example 2 and Example 3, the disturbance of the aerosol by the irregular dense cavities 2113 of each heat-not-burn cigarette in Example 4 is not the same when puffing, resulting in a larger fluctuation of draw resistance between each heat-not-burn cigarette in Example 4, i.e., a larger standard deviation of draw resistance in Example 4, and a larger number of unqualified cigarettes. In Example 5, a plurality of irregular shaped paper cavity tubes are arranged to form irregular loose cavities 2114. Due to the same reasons as in Example 2 and Example 3, the standard deviation of weight in Example 5 is lower than that in Comparative Example 1, Example 1 and Example 2, and similar to that in Example 3. However, due to the same reasons as in Example 4, the fluctuation of draw resistance between each heat-not-burn cigarette in Example 5 is larger, i.e., the standard deviation of draw resistance in Example 5 is larger, although the standard deviation of draw resistance in Example 5 is better than that in Example 4, but still significantly higher than that in Example 2 and Example 3, and the number of unqualified cigarettes is also higher. On the other hand, in Example 4 and Example 5, a plurality of irregular shaped paper cavity tubes are arranged in the support section 210, which has better support, but the distribution density of the irregular shaped paper cavity tubes in the circumferential direction of the support section 210 of each heat-not-burn cigarette in Example 4 and Example 5 is not the same, so the standard deviation of the circumference and the roundness in Example 4 and Example 5 is higher than that in Example 2 and Example 3, i.e., the fluctuation of the circumference and the roundness of the support section 210 of each heat-not-burn cigarette in Example 4 and Example 5 is larger.

[0093] In summary, the heating cigarette of the utility model, the support section, the cavity section and the filter section of the filter rod section are all formed by wrapping with the shaped paper, the shaped paper is non-toxic and harmless and easy to degrade, and has no burden on the environment. At the same time, by arranging a plurality of paper cavity pipes penetrating through the support section along the first direction in the support section, the heat exchange area of the support section can be increased, so that the temperature of the aerosol is reduced, and the user experience is improved. In addition, by filling the support section with a plurality of paper cavity pipes, compared with the thick-walled hollow pipe support section used in conventional heating cigarettes, the wall thickness of the support section can be effectively reduced, and the passage area of the support section is increased, so that the trapping rate of effective components such as nicotine in the aerosol is reduced, and the user experience is further improved. At the same time, under the condition that the formula of the embodiment is relatively stable, the tobacco filling density and the cigarette specification size remain consistent, the four-leaf or six-leaf paper cavity structure formed by the paper sheet in the support section is arranged in the support section, which can ensure that the support section has appropriate adsorption capacity, reduce the volatility of the amount of smoke components and smoke absorbed by each heating cigarette during storage and in the heating process, and further reduce the volatility of the weight and resistance of each heating cigarette. At the same time, by using four or six paper cavity pipes penetrating through the support section along the first direction for support, the support section is not easy to deform, and since the distribution density of the paper cavity pipes in the circumferential direction of the support section is relatively uniform, the volatility of the circumference and the roundness of each heating cigarette is also small, so that the parameter consistency and stability of each heating cigarette are ensured, and the user experience is improved.

[0094] Unless otherwise defined, technical terms or scientific terms used in the utility model should be understood as the usual meaning understood by a person with ordinary skills in the art to which the utility model belongs. The terms "first", "second" and similar words used in the utility model do not represent any order, quantity or importance, but are only used to distinguish different components. Similarly, "one" or "a" and similar words do not represent a quantity limit, but represent the existence of at least one. The words "connected" or "connected" and similar words are not limited to physical or mechanical connections, but can include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to represent the relative positional relationship, and when the absolute position of the described object changes, the relative positional relationship also changes accordingly.

[0095] The above is the preferred embodiment of the utility model, and it should be pointed out that for ordinary technical personnel in the technical field, without departing from the principle of the utility model, a number of improvements and refinements can be made, and these improvements and refinements should also be considered as the protection scope of the utility model.

Claims

1. A heated cigarette, characterized in that, include: Smoke-generating section; The filter rod segment includes a support segment, a cavity segment, and a filter segment arranged coaxially along a first direction. The smoke-generating segment is connected to the end of the support segment opposite to the cavity segment, and the smoke-generating segment is coaxial with the filter rod segment along the first direction. The support segment is formed by wrapping support segment forming paper along the first direction. A paper sheet extending along the first direction is disposed inside the support segment. The paper sheet is rolled and / or folded to form a plurality of paper cavity tubes that penetrate the support segment along the first direction.

2. The heated cigarette according to claim 1, characterized in that, The paper sheet is rolled and / or folded to form four or six paper cavity tubes that penetrate the support section along the first direction, so that the axial cross section of the support section is formed as a four-lobed cavity or a six-lobed cavity.

3. The heated cigarette according to claim 1 or 2, characterized in that, The smoke-generating section includes: The cigarette core is coaxial with the filter rod segment along the first direction, and the cigarette core is composed of one or more of tobacco raw material shreds or reconstituted tobacco leaf sheets containing a smoking agent; The outer cigarette paper is wrapped around the outside of the cigarette core along the first direction.

4. The heated cigarette according to claim 3, characterized in that, The reconstituted tobacco sheet containing a smoke-generating agent includes one or more of the following: roll-pressed sheet, dry-process papermaking sheet, wet-process papermaking sheet, or slurry-process sheet.

5. The heated cigarette according to claim 1 or 2, characterized in that, Each of the paper cavity tubes has a pleated structure on its inner wall.

6. The heated cigarette according to claim 1 or 2, characterized in that, The cavity section is a thin-walled cylindrical hollow paper tube arranged along the first direction. One end of the cavity section is connected to a plurality of paper cavity tubes in the support section, and the other end of the cavity section is connected to the filter section.

7. The heated cigarette according to claim 1 or 2, characterized in that, The cavity section has multiple ventilation holes arranged in a single or double row along its circumference.

8. The heated cigarette according to claim 1 or 2, characterized in that, The filtering section includes: A paper filter element, wherein the paper filter element is formed by winding and / or gathering paper along the first direction; A filter section forming paper, which is wrapped around the outside of the paper filter element along the first direction.

9. The heated cigarette according to claim 8, characterized in that, The paper is made from natural fibers through papermaking, and the paper is subjected to creping and / or pressing treatment.

10. The heated cigarette according to claim 1 or 2, characterized in that, The filter rod segment also includes: A filter rod segment forming paper, which is wrapped around the outside of the support segment, the cavity segment and the filter segment along the first direction.

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