Novel heating cigarette and preparation method

Abstract

The invention relates to a novel heating cigarette and a preparation method. The novel heating cigarette comprises a filter tip unit, a first tobacco unit, a second tobacco unit and a heat insulation unit. The filter tip unit, the first tobacco unit and the second tobacco unit are connected in sequence, and the heat insulation unit wraps the filter tip unit, the first tobacco unit and the second tobacco unit; the second tobacco unit includes an inorganic flame retardant. By adding the inorganic flame retardant, the combustion speed of the tobacco material can be slowed down, and compared with a traditional cigarette, the smoking number is increased under the condition that the length of a tobacco unit is shortened, and the smoking habit of smokers of the heated cigarette is met. The second tobacco unit is ignited to provide a heat source for aerosol release of the first tobacco unit, a matched smoking set is not needed, and use is convenient.

Description

Technical Field

[0001] The present invention relates to the technical field of cigarette preparation, and particularly to a novel heated cigarette and a preparation method thereof. Background Art

[0002] With the in-depth implementation of the World Health Organization's Framework Convention on Tobacco Control, it has brought a serious impact on the traditional cigarette industry. In the face of the strict restrictions on traditional cigarettes by governments and laws of various countries, heated cigarettes have received increasing attention due to their characteristics of less harm to smokers, non-combustion, and no generation of second-hand smoke, and have become the research focus of tobacco companies around the world.

[0003] Existing heated cigarettes mainly include electric heating type and carbon heating type. Electric heating type heated cigarettes require a smoking device to provide heat source, which has the inconvenience of operation; carbon heating type heated cigarettes provide heat source by igniting a carbon rod, and the carbon rod releases CO due to incomplete combustion, resulting in poor sensory quality during suction and low market acceptance. How to provide a novel cigarette that has the advantages of low-tar and healthy of heated cigarettes and also has the consumption characteristics of traditional cigarettes ignited and smoked has become an urgent technical problem to be solved. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a novel heated cigarette and a preparation method thereof. In the present invention, an insulation unit is added to wrap the filter unit, the first tobacco unit, and the second tobacco unit, and an inorganic flame retardant is added to the second tobacco unit, which can slow down the burning speed of tobacco materials. Compared with traditional cigarettes, the number of puffs can be increased while shortening the length of the tobacco unit, meeting the smoking habits of heated cigarette smokers.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] In a first aspect, the present invention provides a novel heated cigarette, which includes: a filter unit, a first tobacco unit, a second tobacco unit, and an insulation unit;

[0007] The filter unit, the first tobacco unit, and the second tobacco unit are connected in sequence, and the insulation unit wraps the filter unit, the first tobacco unit, and the second tobacco unit;

[0008] The second tobacco unit includes an inorganic flame retardant.

[0009] In the present invention, the insulation unit can completely or partially wrap the filter unit, and completely wrap the first tobacco unit, and wrap the connection between the first tobacco unit and the second tobacco unit. By adding an inorganic flame retardant to the second tobacco unit in the present invention, the burning speed of tobacco materials can be slowed down. Compared with traditional cigarettes, the number of puffs can be increased while shortening the length of the tobacco unit, meeting the smoking habits of heated cigarette smokers.

[0010] In the present invention, when the second tobacco unit is ignited and puffed, the hot air flow generated by the second tobacco unit provides heat for the aerosol release of the first tobacco unit, giving consumers the puffing experience of a heated cigarette. At the same time, the first tobacco unit and the second tobacco unit can be added with flavoring agents with different characteristics, which can further enrich the sensory quality of the smoke. The present invention uses the ignition of the second tobacco unit to provide a heat source for the aerosol release of the first tobacco unit, without the need to match a smoking device, and can be conveniently used.

[0011] In the present invention, when the heat generated by igniting and puffing the second tobacco unit is transferred to the first tobacco unit, the heat insulation unit can effectively block the diffusion of heat to the outer wall of the first tobacco unit. On the one hand, it is beneficial to the effective utilization of heat in the first tobacco unit, and on the other hand, it can also prevent the heat from being transferred to the outer wall and causing the cigarette to be hot to the touch. The heat insulation unit involved in the present invention does not limit the specific preparation process and source, and related products can effectively insulate heat.

[0012] Preferably, the first tobacco unit comprises any one or at least two combinations of tobacco raw materials, fuming agents, cigarette paper or flavoring agents.

[0013] Preferably, the cigarette paper includes filter rod forming paper.

[0014] The cigarette paper of the first tobacco unit wraps the tobacco raw materials, fuming agents and flavoring agents tightly, and the outer layer is wrapped with a heat insulation unit.

[0015] Preferably, the tobacco raw materials of the first tobacco unit include any one or at least two combinations of cut tobacco, stem cut tobacco, reconstituted tobacco shreds or reconstituted tobacco rolls.

[0016] Preferably, the content of the fuming agent in the first tobacco unit is 10%-25%. For example, it can be 10%, 11%, 12%, 13%, 14%, 15%, 16%, 17%, 18%, 19%, 20%, 21%, 22%, 23%, 24% or 25%, etc.

[0017] Preferably, the fuming agent includes glycerol and / or propylene glycol.

[0018] Preferably, the second tobacco unit comprises any one or at least two combinations of cigarette paper, tobacco raw materials, nicotine, flavoring agents, honey, glycerol or inorganic flame retardants.

[0019] In the present invention, when the second tobacco unit is ignited and puffed, the second tobacco unit provides a hot air flow containing flavoring agents and glycerol for the first tobacco unit, so that the tobacco material of the first tobacco unit is heated to release aerosol, and the glycerol in the hot air flow acts as a carrier, which can promote the thermal migration of volatile and semi-volatile substances in the first tobacco unit and improve the sensory quality of heating and puffing the first tobacco unit.

[0020] Preferably, the air permeability of the cigarette paper in the second tobacco unit is not greater than 30 CU. The cigarette paper in the second tobacco unit includes the original tipping paper for cigarettes.

[0021] In the present invention, the cigarette paper of the second tobacco unit has low air permeability, which can ensure low heat loss after the second tobacco unit is ignited. This heat can move to the first tobacco unit through the second tobacco unit, causing the first tobacco unit to release an aerosol including a smoke agent and volatile and semi-volatile substances in the tobacco raw material when heated, thereby improving the sensory quality of the first tobacco unit during heating and suction.

[0022] In the present invention, adding an inorganic flame retardant to the second tobacco unit can slow down the burning speed of the tobacco material and significantly increase the number of puffs during suction.

[0023] Preferably, the tobacco raw material of the second tobacco unit includes any one or a combination of at least two of cut tobacco, cut stem, reconstituted tobacco shreds or reconstituted tobacco rolls.

[0024] Preferably, the inorganic flame retardant includes any one or a combination of at least two of aluminum hydroxide, magnesium hydroxide, zinc borate or expanded graphite.

[0025] Preferably, the heat insulation unit is heat insulation paper.

[0026] Preferably, the heat insulation paper is aerogel fiber paper.

[0027] Preferably, the length of the first tobacco unit is 5 - 30 mm. For example, it can be 5 mm, 10 mm, 15 mm, 20 mm, 25 mm or 30 mm, etc.

[0028] Preferably, the wrapping length of the first tobacco unit is the same as the length of the first tobacco unit;

[0029] Preferably, the length of the second tobacco unit is 15 - 30 mm. For example, it can be 15 mm, 16 mm, 18 mm, 20 mm, 22 mm, 24 mm, 26 mm, 28 mm or 30 mm, etc.

[0030] Preferably, the wrapping length of the second tobacco unit is 3 - 5 mm. For example, it can be 3 mm, 3.5 mm, 4 mm, 4.5 mm or 5 mm, etc.

[0031] In the present invention, the wrapping length of the filter unit is not limited. The heat insulation unit can completely or partially wrap the filter unit as long as the heat insulation unit can wrap and fix the filter unit and the first tobacco unit.

[0032] Second aspect, the present invention provides a method for preparing a novel heated cigarette according to the first aspect, the preparation method comprising combining a filter unit, a first tobacco unit and a second tobacco unit. Wrapping the heat insulation unit around the filter unit, the first tobacco unit and the second tobacco unit.

[0033] Preferably, the preparation method of the second tobacco unit comprises:

[0034] (1) Soaking tobacco raw materials in a cleaning agent;

[0035] (2) Soaking the soaked tobacco raw materials in absolute ethanol;

[0036] (3) After drying the tobacco raw materials, adding a mixture liquid, sealing and standing still, and then drying the tobacco raw materials.

[0037] In the present invention, most of the organic substances in the tobacco raw materials in the second tobacco unit are removed by soaking in alcohol or water, so that the tar content in the mainstream smoke of the tobacco components in the second tobacco unit during ignition and suction is low, meeting the needs of consumers for smoking health.

[0038] Preferably, in step (1), the cleaning agent comprises an ethanol aqueous solution.

[0039] Preferably, the concentration of ethanol in the ethanol aqueous solution is 60%-75%. For example, it can be 60%, 62%, 64%, 66%, 68%, 70%, 72%, 74% or 75%, etc.

[0040] Preferably, in step (1), the soaking time is 4-48 h. For example, it can be 4 h, 5 h, 10 h, 15 h, 20 h, 25 h, 30 h, 35 h, 40 h, 45 h or 48 h, etc.

[0041] Preferably, in step (2), the soaking time is 1-3 h. For example, it can be 1 h, 1.5 h, 2 h, 2.5 h or 3 h, etc.

[0042] Preferably, in step (3), the application amount of the mixture liquid is 10%-40%. For example, it can be 10%, 15%, 20%, 25%, 30%, 35% or 40%, etc.

[0043] Preferably, the mass ratio of nicotine, flavor and fragrance, honey, glycerol and inorganic flame retardant in the mixture liquid is (1-10):(1-10):(2-5):(2-15):(2-10). The (1-10) can be, for example, 1, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc. The (2-5) can be, for example, 2, 3, 4 or 5, etc. The (2-15) can be, for example, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14 or 15, etc. The (2-10) can be, for example, 2, 3, 4, 5, 6, 7, 8, 9 or 10, etc.

[0044] Preferably, in step (3), the standing time is 3-6 h. It can be, for example, 3 h, 4 h, 5 h or 6 h, etc.

[0045] Preferably, in step (3), the moisture content of the dried tobacco raw material is 10%-12%. It can be, for example, 10%, 10.5%, 11%, 11.5% or 12%, etc.

[0046] Preferably, the preparation method of the first tobacco unit includes: uniformly mixing a fuming agent and tobacco raw materials.

[0047] Compared with the prior art, the present invention has at least the following beneficial effects:

[0048] 1. In the present invention, an inorganic flame retardant is added to the second tobacco unit, which can slow down the burning speed of the tobacco material. Compared with traditional cigarettes, the number of puffing can be increased while shortening the length of the tobacco unit, meeting the puffing habits of traditional cigarette smokers.

[0049] 2. In the present invention, when glycerol is added to the second tobacco unit and the second tobacco unit is lit for puffing, the second tobacco unit provides a hot air flow containing flavor and fragrance and glycerol for the first tobacco unit, enabling the tobacco material and fuming agent in the first tobacco unit to release aerosol when heated. Moreover, glycerol in the hot air flow serves as a carrier, which can promote the thermal migration of volatile and semi-volatile substances in the first tobacco unit, improving the sensory quality of heating and puffing of the first tobacco unit.

[0050] 3. In the present invention, most of the organic substances in the tobacco raw material of the second tobacco unit are removed by soaking with alcohol or water, resulting in a low tar content in the mainstream smoke when the tobacco components in the second tobacco unit are lit for puffing, meeting the health requirements of consumers for smoking.

[0051] 4. In the present invention, the second tobacco unit is lit to provide a heat source for aerosol release of the first tobacco unit, without the need to match smoking devices. Cigarette rods can be conveniently designed according to different circumferences and lengths, meeting the puffing habits of consumers for thick, medium and thin cigarettes. Description of the Drawings

[0052] Figure 1 This is a structural diagram of a novel heated cigarette, where 1 is the filter unit, 2 is the first tobacco unit, 3 is the second tobacco unit, and 4 is the heat insulation unit. Detailed implementation mode

[0053] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings and through specific implementation modes. However, the following examples are only simple examples of the present invention and do not represent or limit the scope of the claimed rights of the present invention. The scope of protection of the present invention shall be subject to the claims.

[0054] Example 1

[0055] In this example, a novel heated cigarette is prepared.

[0056] The first tobacco unit is prepared by mixing reconstituted tobacco with glycerol, where the glycerol content is 13%, the length of the first tobacco unit is 12 mm, and the cigarette circumference is 24 mm. The cigarette paper in the first tobacco unit is ordinary filter rod forming paper.

[0057] The tobacco leaves are soaked in a 70% ethanol aqueous solution for 24 h, then soaked in absolute ethanol for 2 h, the tobacco leaves are air-dried, 20% of the mixture liquid is added, and the mass ratio of nicotine, menthol, honey, glycerol, and aluminum hydroxide in the mixture liquid is 5:2:2:5:2. It is sealed and left standing for 4 h, and the tobacco leaves are dried to a moisture content of 11%. The treated tobacco leaves are loaded with 5% nicotine, 2% menthol, 2% honey, 5% glycerol, and 2% aluminum hydroxide. The tobacco leaves are prepared into the second tobacco unit, and the length of the second tobacco unit is 20 mm, and the cigarette circumference is 24 mm. The cigarette paper in the second tobacco unit is cigarette tipping base paper with an air permeability of 10 CU.

[0058] The filter unit, the first tobacco unit, and the second tobacco unit are connected in sequence, and the aerogel fiber paper is wrapped around the filter unit, the first tobacco unit, and the second tobacco unit. The aerogel fiber paper completely wraps the filter unit and the first tobacco unit, and the length of the aerogel fiber paper wrapped around the second tobacco unit is 5 mm. The specific structure is as Figure 1 shown.

[0059] Example 2

[0060] In this example, a novel heated cigarette is prepared.

[0061] The first tobacco unit is prepared by mixing reconstituted tobacco with glycerol, where the glycerol content is 10%, the length of the first tobacco unit is 5 mm, and the cigarette circumference is 24 mm. The cigarette paper in the first tobacco unit is ordinary filter rod forming paper.

[0062] Soak the cut tobacco in an aqueous ethanol solution of 60% for 48 h, then soak it in absolute ethanol for 1 h. Air-dry the cut tobacco and add 40% of the mixture solution. The volume ratio of nicotine, menthol, honey, glycerol and aluminum hydroxide in the mixture solution is 10:1:5:15:10. Seal and let it stand for 3 h, and dry the cut tobacco until the moisture content is 10%. The treated cut tobacco is loaded with 10% nicotine, 1% menthol, 5% honey, 15% glycerol and 10% aluminum hydroxide. Prepare the cut tobacco into a second tobacco unit with a length of 15 mm and a cigarette circumference of 24 mm. The tipping paper in the second tobacco unit is the original tipping paper for cigarettes with an air permeability of 10 CU.

[0063] Connect the filter unit, the first tobacco unit and the second tobacco unit in sequence, and wrap the filter unit, the first tobacco unit and the second tobacco unit with the aerogel fiber paper. The aerogel fiber paper completely wraps the filter unit and the first tobacco unit, and the length of the aerogel fiber paper wrapping the second tobacco unit is 3 mm. The specific structure is as Figure 1 shown.

[0064] Example 3

[0065] In this example, a new type of heated cigarette is prepared

[0066] Mix the reconstituted tobacco with glycerol to obtain the first tobacco unit. Among them, the content of propylene glycol is 25%, the length of the first tobacco unit is 30 mm, and the cigarette circumference is 24 mm. The tipping paper in the first tobacco unit is ordinary filter rod forming paper.

[0067] Soak the cut tobacco in an aqueous ethanol solution of 75% for 4 h, then soak it in absolute ethanol for 3 h. Air-dry the cut tobacco and add 10% of the mixture solution. The mass ratio of nicotine, menthol, honey, glycerol and aluminum hydroxide in the mixture solution is 1:10:2:2:2. Seal and let it stand for 6 h, and dry the cut tobacco until the moisture content is 12%. The treated cut tobacco is loaded with 1% nicotine, 10% menthol, 2% honey, 2% glycerol and 2% aluminum hydroxide. Prepare the cut tobacco into a second tobacco unit with a length of 30 mm and a cigarette circumference of 24 mm. The tipping paper in the second tobacco unit is the original tipping paper for cigarettes with an air permeability of 10 CU.

[0068] Connect the filter unit, the first tobacco unit and the second tobacco unit in sequence, and wrap the filter unit, the first tobacco unit and the second tobacco unit with the aerogel fiber paper. The aerogel fiber paper completely wraps the filter unit and the first tobacco unit, and the length of the aerogel fiber paper wrapping the second tobacco unit is 5 mm. The specific structure is as Figure 1 shown.

[0069] Example 4

[0070] In this embodiment, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that the addition amount of glycerol in the first tobacco unit is 5%, and the rest is the same as that in Embodiment 1.

[0071] Embodiment 5

[0072] In this embodiment, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that the addition amount of glycerol in the first tobacco unit is 30%, and the rest is the same as that in Embodiment 1.

[0073] Embodiment 6

[0074] In this embodiment, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that the cut tobacco is not soaked in a 70% aqueous ethanol solution but directly soaked in absolute ethanol, and the rest is the same as that in Embodiment 1.

[0075] Embodiment 7

[0076] In this embodiment, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that glycerol is not added to the mixed material liquid, and the addition amount of glycerol is distributed to the other components in the mixed material liquid according to the ratio in Embodiment 1, and the rest is the same as that in Embodiment 1.

[0077] Embodiment 8

[0078] In this embodiment, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that honey is not added to the mixed material liquid, and the addition amount of honey is distributed to the other components in the mixed material liquid according to the ratio in Embodiment 1, and the rest is the same as that in Embodiment 1.

[0079] Comparative Example 1

[0080] In this comparative example, a heated cigarette is prepared, which is a conventional cigarette with a cigarette length of 84 mm, a circumference of 24 mm, and a cut tobacco section of 52 mm.

[0081] Comparative Example 2

[0082] In this comparative example, a new type of heated cigarette is prepared. The difference from Embodiment 1 is only that aluminum hydroxide is not added to the mixed material liquid, and the addition amount of aluminum hydroxide is distributed to the other components in the mixed material liquid according to the ratio in Embodiment 1, and the rest is the same as that in Embodiment 1.

[0083] Comparative Example 3

[0084] In this comparative example, a new type of heated cigarette is prepared. The difference from Embodiment 1 is that the structure does not contain aerogel fiber paper, that is, the heat insulation unit is not included, and the filter tip unit, the first tobacco unit, and the second tobacco unit are wrapped by ordinary cigarette paper, and the rest is the same as that in Embodiment 1.

[0085] Comparative Example 4

[0086] This comparative example prepares a new type of heated cigarette, which is only different from Example 1 in that the order of the first tobacco unit and the second tobacco unit is swapped, and the rest is the same as in Example 1. Among them, the aerogel fiber paper completely wraps the filter unit and the second tobacco unit, and the length of the aerogel fiber paper wrapping the first tobacco unit is 5 mm.

[0087] Comparative Example 5

[0088] This comparative example prepares a new type of heated cigarette, which is only different from Example 1 in that this example does not include the first tobacco unit, and the length of the second tobacco unit is 32 mm.

[0089] Comparative Example 6

[0090] This comparative example prepares a new type of heated cigarette, which is only different from Example 1 in that this example does not include the first tobacco unit, the length of the second tobacco unit is 32 mm, 13% glycerol is added to the second tobacco unit mixture liquid, and the proportions of the remaining components in the second unit mixture liquid in Example 1 are reduced according to the increase in glycerol.

[0091] Test Example 1

[0092] This test example conducts an exploration of the puff number test

[0093] This example explores the puff number, and the specific detection method is as follows: Refer to the national standard GB / T 19609-2024 Determination of total particulate matter and tar in cigarettes using a routine analytical smoking machine. Use the smoking machine to suck the sample cigarette, the suction volume is 35 / ml, the suction time is 2S, and the suction interval is 58S. The puff number counting method: One normal suction of the smoking machine counts as one puff. When the smoking machine sucks until the heat insulation unit on the second tobacco unit is reached, the robotic arm of the smoking machine takes out the cigarette from the suction gripper, and the suction stops. The specific detection records are shown in Table 1.

[0094] Table 1

[0095]

[0096]

[0097] It can be seen from the test results that:

[0098] (1) By comparing Example 1 with Examples 4-5 and Comparative Example 5, it can be known that since the second tobacco unit is sucked after being lit, the second tobacco unit provides a heat source for the aerosol heat release of the first tobacco unit, and the change of the first tobacco unit has basically no effect on the puff number of the second tobacco unit when it is lit and sucked.

[0099] (2) It can be known from the comparison between Example 1 and Example 6 that the cut tobacco is not treated with 70% aqueous ethanol solution, that is, the water-soluble components in the cut tobacco are not removed, which slows down the burning rate of the second tobacco unit. Correspondingly, the number of puffs of the second tobacco unit increases.

[0100] (3) It can be known from the comparison between Example 1 and Examples 7-8 that the lack of glycerol or honey in the mixture liquid of the second tobacco unit will reduce the number of puffs.

[0101] (4) It can be known from the comparison between Example 1 and Comparative Example 1 that, compared with conventional cigarettes, the number of puffs of the cigarette prepared by the present invention increases significantly.

[0102] (5) It can be known from the comparison between Example 1 and Comparative Example 2 that the non-addition of aluminum hydroxide in the mixture liquid of the second tobacco unit will reduce the number of puffs.

[0103] (6) It can be known from the comparison between Example 1 and Comparative Example 3 that the absence of aerogel fiber paper in the cigarette rod structure does not affect the number of ignition puffs of the second tobacco unit.

[0104] (7) It can be known from the comparison between Example 1 and Comparative Example 4 that due to the great difference in the raw and auxiliary material compositions of the first tobacco unit and the second tobacco unit, swapping the order of the first tobacco unit and the second tobacco unit has a great impact on the number of puffs.

[0105] (8) It can be known from the comparison between Example 1 and Comparative Example 6 that while the glycerol content in the mixture liquid of the second tobacco unit increases, when the proportion of the remaining components in the mixture liquid of the second unit in Example 1 is reduced according to the increase amount of glycerol, especially when the content of aluminum hydroxide is not within the preferred range of the present invention, the number of puffs decreases.

[0106] Test Example 2

[0107] This test example conducts an exploration on the sensory quality detection of puffing.

[0108] The present invention relates to a novel heated cigarette. The ignition and puffing of the second tobacco unit provide a heat source for the aerosol release of the first tobacco unit, that is, when the second tobacco unit is ignited and puffed, a hot air flow containing flavoring agents and glycerol is generated. After the hot air flow passes through the first tobacco unit, the first tobacco unit is heated to release an aerosol including a smoking agent and volatile and semi-volatile substances in the tobacco raw materials. Therefore, the usage method of this novel heated cigarette is: ignite the second tobacco unit and puff, and stop puffing when reaching the heat insulation unit on the second tobacco unit during ignition and puffing, and manually extinguish the cigarette rod. The puffing behavior is similar to that of traditional cigarettes.

[0109] The specific detection method is as follows: Referring to GB5606.4-2005 "Cigarettes - Part 4: Sensory Technical Requirements", the sensory quality evaluation indicators and the flue gas stability indicators are set respectively. Seven sensory panelists are organized to score the smoking according to the judgment criteria of the sensory quality evaluation indicators in Table 2. The scoring of the sensory quality indicators uses a 100-point system, and the specific results are shown in Table 3.

[0110] Table 2

[0111]

[0112]

[0113] Table 3

[0114]

[0115]

[0116] It can be seen from the results that:

[0117] (1) It can be seen from Example 1, Example 4 and Example 5 that the content of glycerol in the reconstituted tobacco of the first tobacco unit is too small, and the amount of smoke released by the aerosol released by heating is small and the flavor components are few, which affects the sensory quality; if the content of glycerol in the reconstituted tobacco is too large, the reconstituted tobacco will stick together, hindering the heat transfer, also affecting the amount of smoke, and the sensory quality is poor.

[0118] (2) It can be seen from Example 1 and Example 6 that the tobacco leaves in the second tobacco unit are not treated with 70% ethanol aqueous solution, that is, the water-soluble components in the tobacco leaves are not removed, which will affect the adsorption effect of the tobacco leaves on the mixture liquid and the quality and quantity of the aroma of the hot air flow generated by the ignition of the second tobacco unit, and further affect the amount of smoke released by the aerosol released by heating the first tobacco unit and the sensory quality of the flue gas.

[0119] (3) It can be seen from Example 1 and Example 7 that the omission of glycerol in the mixture liquid of the second tobacco unit will affect the amount of smoke of the cigarette and the thermal release of the flavor components of the first tobacco unit, and further affect the sensory quality of the flue gas.

[0120] (4) It can be seen from Example 1 and Example 8 that the omission of honey in the mixture liquid of the second tobacco unit will affect the sensory quality of the flue gas.

[0121] (5) It can be seen from Example 1 and Comparative Example 1 that the sensory quality of the heated cigarette of the present invention is significantly better than that of the conventional cigarette.

[0122] (6) It can be seen from Example 1 and Comparative Examples 4-6 that swapping the order of the first tobacco unit and the second tobacco unit, or not including the first tobacco unit, has a significant impact on the smoke emission amount and sensory quality. In addition, in Comparative Example 3, due to the absence of the heat insulation unit, the side wall of the first tobacco unit cigarette was hot during the ignition and suction process, affecting the consumption experience.

[0123] In summary, by adding an inorganic flame retardant, the present invention significantly increases the number of puffs, and a smoke generator is added to the first tobacco unit. The second tobacco unit provides a heat source during ignition and suction, promoting the thermal release of substances in the first tobacco unit to generate aerosol, thereby improving the sensory quality of the cigarette.

[0124] The applicant declares that the above description is only the specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Those skilled in the art should understand that any changes or substitutions that can be easily thought of by those skilled in the art within the technical scope disclosed by the present invention fall within the protection scope and the disclosure scope of the present invention.

Claims

1. A novel heated cigarette, characterized in that, The novel heated cigarette comprises: a filter unit, a first tobacco unit, a second tobacco unit and a heat insulation unit; The filter unit, the first tobacco unit and the second tobacco unit are connected in sequence, and the heat insulation unit wraps the filter unit, the first tobacco unit and the second tobacco unit; The second tobacco unit comprises an inorganic flame retardant.

2. The novel heated cigarette according to claim 1, wherein The first tobacco unit comprises any one or at least two combinations of tobacco raw materials, a smoking agent, cigarette paper or flavor and fragrance; Preferably, the tobacco raw materials of the first tobacco unit comprise any one or at least two combinations of cut tobacco, cut stem, reconstituted tobacco shreds or reconstituted tobacco rolls; Preferably, the content of the smoking agent is 10%-25%; Preferably, the smoking agent comprises glycerol and / or propylene glycol.

3. The novel heated cigarette according to claim 1 or 2, wherein, The second tobacco unit comprises any one or at least two combinations of cigarette paper, tobacco raw materials, nicotine, flavor and fragrance, honey, glycerol or an inorganic flame retardant; Preferably, the tobacco raw materials of the second tobacco unit comprise any one or at least two combinations of cut tobacco, cut stem, reconstituted tobacco shreds or reconstituted tobacco rolls; Preferably, the inorganic flame retardant comprises any one or at least two combinations of aluminum hydroxide, magnesium hydroxide, zinc borate or expanded graphite; Preferably, the heat insulation unit comprises heat insulation paper.

4. The novel heated cigarette according to any one of claims 1-3, wherein The length of the first tobacco unit is 5-30 mm; Preferably, the wrapping length of the first tobacco unit is the same as the length of the first tobacco unit; Preferably, the length of the second tobacco unit is 15-30 mm; Preferably, the wrapping length of the second tobacco unit is 3-5 mm.

5. A method for preparing a novel heated tobacco product according to any one of claims 1-4, characterized in that, The preparation method comprises combining the filter unit, the first tobacco unit and the second tobacco unit; wrapping the filter unit, the first tobacco unit and the second tobacco unit with the heat insulation unit.

6. The preparation method of the novel heated cigarette according to claim 5, characterized in that, The preparation method of the second tobacco unit comprises: (1) Immersing the tobacco raw materials in a cleaning agent; (2) Immersing the soaked tobacco raw materials in absolute ethanol; (3) After drying the tobacco raw materials, adding a mixed material liquid, sealing and standing, and then drying the tobacco raw materials.

7. The preparation method of the novel heated cigarette according to claim 6, characterized in that, In step (1), the cleaning agent comprises an ethanol aqueous solution; Preferably, the concentration of ethanol in the ethanol aqueous solution is 60%-75%; Preferably, in step (1), the soaking time is 4-48 h; Preferably, in step (2), the soaking time is 1-3 h.

8. The preparation method of the novel heated cigarette according to claim 6 or 7, characterized in that In step (3), the application amount of the mixed material liquid is 10%-40%; Preferably, the mass ratio of nicotine, flavor and fragrance, honey, glycerol and inorganic flame retardant in the mixed material liquid is (1-10):(1-10):(2-5):(2-15):(2-10).

9. The preparation method of the novel heated cigarette according to any one of claims 6-8, characterized in that, In step (3), the standing time is 3-6 h; Preferably, in step (3), the moisture content of the dried tobacco raw materials is 10%-12%.

10. The preparation method of the novel heated cigarette according to any one of claims 6-9, characterized in that, The preparation method of the first tobacco unit comprises: uniformly mixing the smoking agent and the tobacco raw materials.

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