Heating cigarette with front plug section
By introducing a front stopper section and using tobacco filling material in heated cigarettes, problems such as the intrusion of external pollutants, smoke leakage, and heat loss are solved, achieving the sealing, dustproofing, heat preservation, moisture protection, and quality protection of heated cigarettes, thus improving the smoking experience and sensory quality.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-03-02
- Publication Date
- 2026-04-07
AI Technical Summary
Existing heated cigarette structures suffer from problems such as the intrusion of external pollutants, smoke leakage and heat loss, easy shedding and moisture absorption of tobacco materials, and unstable positioning of heating elements, which affect smoking quality and safety.
It adopts a front plug section structure, with tobacco shreds filling the front plug section. It seals the far end to prevent external impurities from entering, reduce smoke leakage and heat loss, prevent tobacco materials from scattering and absorbing moisture, and ensure uniform heating and structural stability.
It improves the stability of flue gas concentration, reduces energy consumption, enhances structural strength, improves the consistency of smoking and sensory quality, and prevents odors and collapse.
Smart Images
Figure CN121795655A_ABST
Abstract
Description
Technical Field
[0001] This invention belongs to the field of heated cigarette technology, and specifically relates to a heated cigarette with a front stopper section. Background Technology
[0002] Heated cigarettes, as a new type of tobacco product, work by heating the tobacco substances in the cigarette with a heating element instead of burning them. This reduces the formation of harmful combustion products such as tar while satisfying consumers' needs for the taste and physiological satisfaction of the smoke. In recent years, they have received widespread attention and research in the industry.
[0003] With the continuous development of heated cigarette technology, the market's requirements for its smoking experience, smoke quality, and safety are increasing. Current heated cigarette technology typically consists of a cigarette section, a filter section, and a support section connecting the two. The cigarette section is filled with tobacco or reconstituted tobacco and other tobacco-generating substances, and the heating element acts directly on the cigarette section to produce smoke. However, long-term practical application and research have revealed many defects in the structural design of existing heated cigarettes, hindering further improvements in their quality.
[0004] Firstly, external pollutants can easily penetrate. The open distal end allows the inside of the cigarette to come into direct contact with the air. During transportation, storage, or retrieval, dust, microorganisms, and other impurities can easily enter the tobacco material from the distal end, not only contaminating the tobacco material but also entering the oral cavity with the smoke after heating, affecting smoking hygiene and smoke quality.
[0005] Secondly, there is significant smoke leakage and heat loss. During heating, the open structure at the distal end causes some of the generated smoke to leak directly out without passing through the filter section, resulting in a decrease in smoke concentration and a weaker taste. At the same time, the heat generated by the heating element is lost from the distal end, increasing energy consumption and causing uneven heating of the cigarette section, further affecting the smoking efficiency.
[0006] Third, the tobacco material is prone to falling off and getting damp. The unfixed end of the cigarette makes it easy for the tobacco material to scatter during handling or use; furthermore, the open structure allows the tobacco material to easily absorb moisture from the air, leading to decreased smoke production performance and problems such as insufficient smoke and increased off-gassing.
[0007] Fourth, the heating element has poor positioning stability. When the heating element is inserted from the far end, the open port lacks a guiding and limiting structure, which can easily cause the heating element to deviate from its insertion position, making it unable to accurately act on the optimal heating area and exacerbating the problem of local overheating or insufficient heating.
[0008] To address the aforementioned shortcomings, an increasing number of heated cigarettes are incorporating a front stopper structure at the distal end of the cigarette. However, most currently available heated cigarettes use cellulose acetate for the front stopper, which offers good support and insulation, but also suffers from issues such as thermal collapse and off-flavors during actual heating. Therefore, to improve smoke generation efficiency and smoke quality, providing a heated cigarette with a front stopper made of a different material is of high practical value. Summary of the Invention
[0009] To address the shortcomings of existing technologies, this invention provides a heated cigarette with a front stopper section. This heated cigarette can reduce the thermal collapse that occurs when the conventional front stopper section is heated during the heating process, and also reduce the occurrence of off-flavors after heating, thereby ensuring better smoking consistency of the heated cigarette.
[0010] To achieve this objective, the present invention adopts the following technical solution: In a first aspect, the present invention provides a heated cigarette with a front stopper section, the heated cigarette comprising, in sequence from the distal end to the proximal end, a front stopper section, a tobacco section, a hollow section and a filter section connected in sequence; The front plug section, tobacco section, hollow section and filter section are formed by wrapping and shaping with cigarette tipping paper; The filling material of the front plug section is tobacco shreds; The raw materials for preparing the tobacco segment are tobacco raw materials, atomizing agents, and adhesives.
[0011] The heated cigarette of this invention, by using a front stopper section and limiting the filling material of the front stopper section to tobacco shreds, offers significant technical advantages: First, it is airtight and dustproof, as the stopper can completely seal the distal end, preventing external impurities from intruding and tobacco substances from scattering, thus ensuring the cleanliness of the tobacco substances; second, it is leak-proof and heat-insulating, as the sealed structure reduces smoke leakage and heat loss, improves the stability of smoke concentration, reduces energy consumption, and optimizes heating uniformity; third, it is moisture-proof and material-protecting, blocking direct contact between the tobacco substances and air, slowing down the rate of moisture absorption, and maintaining stable smoking performance; fourth, because the filling material is only tobacco shreds, its filling value is relatively large, and the e-liquid in the smoke is easily adsorbed on it, preventing leakage into the smoking device; moreover, it does not produce other odors after heating, nor does it collapse, thus not only stabilizing the structural strength of the heated cigarette but also improving its sensory quality; fifth, during the smoking process, the heated cigarette inevitably diffuses heat to the front stopper structure, and using tobacco shreds without other components as the front stopper also has a certain aroma-enhancing effect.
[0012] Preferably, the length of the front plug section is 5-10mm, for example, it can be 6mm, 7mm, 8mm, or 9mm.
[0013] Preferably, the density of the fore-plug segment is 5-10 g / cm³. 3For example, it can be 5.5g / cm³. 3 6 g / cm 3 6.5 g / cm 3 7 g / cm 3 7.5 g / cm 3 8 g / cm 3 8.5 g / cm 3 9 g / cm 3 Or 9.5 g / cm 3 wait.
[0014] Preferably, the moisture content of the tobacco powder in the front stopper section is <9%, for example, it can be 8%, 7%, 6%, 5%, 4%, 3%, 2% or 1%, etc.
[0015] Preferably, the air permeability of the front plug section is ≤5%, for example, it can be 1%, 1.5%, 2%, 2.5%, 3%, 3.5%, 4% or 4.5%, etc.
[0016] Preferably, the air permeability of the forepump section is 2-5%.
[0017] Preferably, the length of the tobacco segment is 10-30mm, for example, it can be 11mm, 13mm, 15mm, 18mm, 20mm, 22mm, 25mm, 27mm or 29mm, etc.
[0018] Preferably, the raw materials for preparing the tobacco segment, by weight, are 60-85 parts of tobacco raw material (e.g., 62, 65, 68, 70, 72, 75, 78, 80, 82, or 84 parts, etc.), 15-40 parts of atomizing agent (e.g., 16, 18, 20, 22, 25, 28, 30, 32, 35, 37, or 39 parts, etc.), and 1-5 parts of adhesive (e.g., 1.5, 2, 2.5, 3, 3.5, 4, or 4.5 parts, etc.).
[0019] Preferably, the adhesive comprises any one or a combination of at least two of sodium alginate, sodium carboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, microcrystalline fiber powder, chitosan, xanthan gum, guar gum or cellulose acetate.
[0020] Preferably, the adhesive is a combination of sodium alginate, sodium carboxymethyl cellulose, and guar gum.
[0021] Preferably, the tobacco raw material includes any one or a combination of at least two of the following: shredded tobacco, shredded stems, or reconstituted tobacco leaves.
[0022] Preferably, the tobacco shreds include any one or a combination of at least two of the following: flue-cured tobacco leaves, burley tobacco leaves, sun-cured tobacco leaves, or air-cured tobacco leaves.
[0023] Preferably, the atomizing agent comprises any one or a combination of at least two of glycerol, propylene glycol, butanediol, trimethylolpropane, trimethylolethane, triethylene glycol, sorbitol, xylitol, betaine, 1,2-propanediol, or 1,3-butanediol.
[0024] Preferably, the atomizing agent is a combination of glycerol, sorbitol and betaine.
[0025] Preferably, the wall material of the hollow section is any one of paper, polylactic acid, or cellulose acetate.
[0026] Preferably, the length of the hollow section is 15-30 mm, for example, it can be 16 mm, 18 mm, 20 mm, 22 mm, 25 mm, 27 mm or 29 mm, etc.
[0027] Preferably, the diameter of the channel in the hollow section is 2-4 mm, for example, it can be 2.1 mm, 2.3 mm, 2.5 mm, 2.8 mm, 3 mm, 3.2 mm, 3.5 mm, 3.7 mm or 3.9 mm, etc.
[0028] Preferably, the diameter of the near end of the channel in the hollow section is 1 / 5 to 1 of the diameter of the far end, for example, it can be 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or 0.9, etc.
[0029] Preferably, the channel within the hollow section has a straight-through structure, meaning that the diameter of the near end is the same as the diameter of the far end. This structure can improve the amount of smoke produced by the heated cigarette and enhance the continuity of the smoke.
[0030] Preferably, the filter tip is made of cellulose acetate.
[0031] Preferably, the length of the filter tip section is 10-30mm, for example, it can be 11mm, 13mm, 15mm, 18mm, 20mm, 22mm, 25mm, 27mm or 29mm, etc.
[0032] All the specific point values within the above range can be selected, and will not be elaborated on here.
[0033] Compared with the prior art, the present invention has the following beneficial effects: The heated cigarette of this invention, by using a front plug section and specifying that the filling material of the front plug section is tobacco powder, can bring significant technical advantages: First, it is sealed and dustproof, as the plug can completely seal the distal end, preventing external impurities from entering and tobacco materials from scattering, thus ensuring the cleanliness of the tobacco materials; second, it is leak-proof and heat-insulating, as the sealed structure reduces smoke leakage and heat loss, improves the stability of smoke concentration, reduces energy consumption, and optimizes the uniformity of heating; third, it is moisture-proof and material-protecting, blocking direct contact between the tobacco materials and air, slowing down the rate of moisture absorption, and maintaining stable smoking performance; fourth, since the filling material is tobacco powder, it will not produce other odors after heating, nor will it collapse, thus not only stabilizing the structural strength of the heated cigarette, but also improving the sensory quality of the heated cigarette. Attached Figure Description
[0034] Figure 1 This is a structural diagram of the heated cigarette described in Embodiment 1 of the present invention; Figure 2 This is a structural diagram of the heated cigarette described in Embodiment 3 of the present invention. Detailed Implementation
[0035] The technical solution of the present invention will be further illustrated below through specific embodiments. Those skilled in the art should understand that the embodiments described are merely illustrative of the present invention and should not be construed as limiting the invention in any way.
[0036] Example 1 This embodiment provides a heated cigarette with a front stopper section, comprising, in sequence from the distal end to the proximal end, a front stopper section (1cm in length), a tobacco section (3cm in length), a hollow section (2cm in length), and a filter section (3cm in length). The tobacco shreds in the front stopper section have a controlled moisture content of 5±0.5% and are compacted by an extruder to a density of 8g / cm³. 3 The air permeability is 4%; The raw materials for preparing the tobacco segment are, by weight, 75 parts tobacco raw materials (sun-cured tobacco leaves and shredded tobacco), 25 parts atomizing agent (glycerol, sorbitol and betaine in a mass ratio of 2:1:1) and 3 parts adhesive (sodium alginate, sodium carboxymethyl cellulose and guar gum in a mass ratio of 2:2:1). The hollow section is a hollow straight-channel paper tube with an inner diameter of 3mm; The filter tip section is made of cellulose acetate. The fore-end section, tobacco section, hollow section, and filter section are formed by wrapping the tobacco tipping paper.
[0037] Example 2 This embodiment provides a heated cigarette with a front stopper section, comprising, in sequence from the distal end to the proximal end, a front stopper section (1cm in length), a tobacco section (3cm in length), a hollow section (2cm in length), and a filter section (3cm in length). The filling material of the front stopper section is shredded tobacco with a controlled moisture content of 8±0.5%, which is then compacted by an extruder to a density of 10g / cm³. 3 The air permeability is 2.5%; The raw materials for preparing the tobacco segment are, by weight, 80 parts tobacco raw materials (flue-cured tobacco leaves and shredded tobacco), 19 parts atomizing agent (glycerol, sorbitol and betaine in a mass ratio of 3:1:1) and 4 parts adhesive (sodium alginate, sodium carboxymethyl cellulose and guar gum in a mass ratio of 1:2:1). The hollow section is a hollow straight-channel paper tube with an inner diameter of 4mm; The filter tip section is made of cellulose acetate. The fore-end section, tobacco section, hollow section, and filter section are formed by wrapping the tobacco tipping paper.
[0038] Example 3 This embodiment provides a heated cigarette with a front stopper section, comprising, in sequence from the distal end to the proximal end, a front stopper section (1cm in length), a tobacco section (3cm in length), a hollow section (2cm in length), and a filter section (3cm in length). The filling material of the front stopper section is shredded tobacco with a controlled moisture content of 6±0.5%, which is then compacted by an extruder to a density of 6 g / cm³. 3 The air permeability is 5%; The raw materials for preparing the tobacco segment are, by weight, 71.5 parts tobacco raw material (Bulb tobacco leaves and shredded tobacco), 30 parts atomizing agent (glycerol, sorbitol and betaine in a mass ratio of 1:1:1) and 2.5 parts adhesive (sodium alginate, sodium carboxymethyl cellulose and guar gum in a mass ratio of 1:1:2). The hollow section is a hollow paper tube, with an inner diameter of 4 mm from the distal end to half of the hollow section, and an inner diameter of 2 mm from half of the hollow section to the proximal end. The filter tip section is made of cellulose acetate. The fore-end section, tobacco section, hollow section, and filter section are formed by wrapping the tobacco tipping paper.
[0039] Example 4 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the atomizing agent in the tobacco section is a combination of glycerol and sorbitol in a mass ratio of 2:1, and the amount of atomizing agent remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0040] Example 5 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the atomizing agent in the tobacco section is a combination of glycerol and betaine in a mass ratio of 2:1, and the amount of atomizing agent remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0041] Example 6 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the atomizing agent in the tobacco section is a combination of sorbitol and betaine in a mass ratio of 1:1, and the amount of atomizing agent remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0042] Example 7 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the adhesive in the tobacco section is a combination of sodium alginate and sodium carboxymethyl cellulose in a mass ratio of 2:2, and the amount of adhesive remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0043] Example 8 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the adhesive in the tobacco section is a combination of sodium alginate and guar gum in a mass ratio of 2:1, and the amount of adhesive remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0044] Example 9 This embodiment provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and the one in Embodiment 1 is that the adhesive in the tobacco section is a combination of sodium carboxymethyl cellulose and guar gum in a mass ratio of 2:1, and the amount of adhesive remains unchanged. Other components and structures are consistent with those in Embodiment 1.
[0045] Example 10 This embodiment provides a heated cigarette with a front stopper section. The only difference between this heated cigarette and that of Embodiment 1 is that the density of the front stopper section is 3 g / cm³. 3 The air permeability is 7%, and the other components and structure are consistent with those in Example 1.
[0046] Example 11 This embodiment provides a heated cigarette with a front stopper section. The only difference between this heated cigarette and that of Embodiment 1 is that the density of the front stopper section is 12 g / cm³. 3 The air permeability is 1%, and the other components and structure are consistent with those in Example 1.
[0047] Comparative Example 1 This comparative example provides a heated cigarette with a front stopper section. The only difference between this heated cigarette and Example 1 is that the filling material of the front stopper section is cellulose acetate, while the other structures are consistent with Example 1.
[0048] Comparative Example 2 This comparative example provides a heated cigarette with a front stopper section. The only difference between the heated cigarette and Example 1 is that the filling material of the front stopper section is the same as that of the tobacco section, and its moisture content, density, and air permeability are the same as those of Example 1. Other components and structures are the same as those of Example 1.
[0049] Comparative Example 3 This comparative example provides a heated cigarette, which differs from Example 1 only in that it does not include a front stopper section in its structure. The other structures are consistent with Example 1, and the preparation method is the same as in Example 1.
[0050] Test Example 1 Take the heated cigarettes provided in Examples 1-11 and Comparative Examples 1-3, use the same smoking device, and smoke 100 cigarettes continuously. Check the oil leakage at the front of the cigarette. The results are shown in Table 1.
[0051] Table 1 As shown in Table 1, the heated cigarette of the present invention can significantly reduce the oil leakage rate by using the front stopper section. The filling material of the front stopper section, as well as its density and air permeability, directly affect its performance in reducing the oil leakage rate.
[0052] Test Example 2 Sensory Quality The sensory qualities of the heated cigarettes provided in Examples 1-11 and Comparative Examples 1-3 were tested.
[0053] Test method: Refer to national standard GB 5606.4-2005 Cigarettes Part 4: Sensory technical requirements.
[0054] Test standards: The scoring range for smoke volume is 1-20 points, the scoring range for harmony is 1-20 points, the scoring range for impurities is 1-20 points, the scoring range for irritation is 1-20 points, the scoring range for consistency is 1-20 points, and the total score is 100 points.
[0055] The results are shown in Table 2.
[0056] Table 2 As can be seen from Table 2, compared with the heated cigarette without a front stopper section in Comparative Example 3, the heated cigarettes provided in Examples 1-3 of the present invention, through specific formulations, do not show any decrease in smoke volume or smoke consistency.
[0057] As can be seen from the comparison between Examples 1 and Examples 4-6, only when glycerin, sorbitol and betaine are used together as atomizing agents can the amount of smoke released by the cigarette product under heating state be guaranteed and the sensory smoking quality be improved. As can be seen from the comparison between Examples 1 and Examples 7-9, the combination of sodium alginate, sodium carboxymethyl cellulose and guar gum can enhance the strength of the front stopper section. In addition, the combination of the three will not produce an off-odor when heated, thus improving the sensory quality of the cigarette. As can be seen from the comparison between Example 1 and Examples 10-11, when the density and permeability of the front plug section are too low, smoke leakage and heat loss will occur in the front plug section. When they are too high, the permeability is poor, which will affect the stability of the smoke concentration and reduce the amount of smoke from the heated cigarette. As can be seen from the comparison between Example 1 and Comparative Example 1, when the filling material of the current stopper is cellulose acetate, it will cause an off-odor phenomenon after being heated, which will make the off-odor and irritation of the heated cigarette stronger, and thus make the sensory effect poor.
[0058] As can be seen from the comparison between Example 1 and Comparative Example 2, when the filling material of the current plug segment is the same as the tobacco raw material, it collapses after being heated, resulting in heat loss and a reduction in the amount of smoke in the heated cigarette.
[0059] The applicant declares that the present invention is illustrated by the above embodiments to provide a heated cigarette with a front stopper section, but the present invention is not limited to the above embodiments, that is, it does not mean that the present invention must rely on the above embodiments to be implemented. Those skilled in the art should understand that any improvements to the present invention, equivalent substitutions of the raw materials of the product of the present invention, addition of auxiliary components, and selection of specific methods, etc., all fall within the protection scope and disclosure scope of the present invention.
[0060] The preferred embodiments of the present invention have been described in detail above. However, the present invention is not limited to the specific details in the above embodiments. Within the scope of the technical concept of the present invention, various simple modifications can be made to the technical solution of the present invention, and these simple modifications all fall within the protection scope of the present invention.
[0061] It should also be noted that the various specific technical features described in the above specific embodiments can be combined in any suitable manner without contradiction. In order to avoid unnecessary repetition, the present invention will not describe the various possible combinations separately.
Claims
1. A heated cigarette with a front stopper section, characterized in that, The heated cigarette includes, from the distal end to the proximal end, a front stopper section, a tobacco section, a hollow section, and a filter section connected in sequence. The front plug section, tobacco section, hollow section and filter section are formed by wrapping and shaping with cigarette tipping paper; The filling material of the front plug section is tobacco shreds; The raw materials for preparing the tobacco segment are tobacco raw materials, atomizing agents, and adhesives.
2. The heated cigarette with a front stopper section as described in claim 1, characterized in that, The length of the front plug section is 5-10 mm; Preferably, the moisture content of the tobacco powder in the pre-stop section is <9%.
3. The heated cigarette with a front stopper section as described in claim 1 or 2, characterized in that, The density of the fore-plug section is 5-10 g / cm³. 3 ; Preferably, the air permeability of the forepump section is ≤5%.
4. The heated cigarette with a front stopper section as described in any one of claims 1-3, characterized in that, The length of the tobacco segment is 10-30mm; Preferably, the raw materials for preparing the tobacco segment are 60-85 parts of tobacco raw material, 15-40 parts of atomizing agent and 1-5 parts of adhesive, by weight.
5. The heated cigarette with a front stopper section as described in claim 4, characterized in that, The adhesive includes any one or a combination of at least two of the following: sodium alginate, sodium carboxymethyl cellulose, methyl cellulose, hydroxypropyl methyl cellulose, microcrystalline fiber powder, chitosan, xanthan gum, guar gum, or cellulose acetate; Preferably, the adhesive is a combination of sodium alginate, sodium carboxymethyl cellulose, and guar gum.
6. The heated cigarette with a front stopper section as described in claim 4 or 5, characterized in that, The tobacco raw materials include any one or a combination of at least two of the following: shredded tobacco, shredded stems, or reconstituted tobacco leaves; Preferably, the tobacco shreds include any one or a combination of at least two of the following: flue-cured tobacco leaves, burley tobacco leaves, sun-cured tobacco leaves, or air-cured tobacco leaves.
7. The heated cigarette with a front stopper section as described in any one of claims 4-6, characterized in that, The atomizing agent includes any one or a combination of at least two of the following: glycerol, propylene glycol, butanediol, trimethylolpropane, trimethylolethane, triethylene glycol, sorbitol, xylitol, betaine, 1,2-propanediol, or 1,3-butanediol. Preferably, the atomizing agent is a combination of glycerol, sorbitol and betaine.
8. The heated cigarette with a front stopper section as described in any one of claims 1-7, characterized in that, The wall material of the hollow section is any one of paper, polylactic acid, or cellulose acetate.
9. The heated cigarette with a front stopper section as described in any one of claims 1-8, characterized in that, The length of the hollow section is 15-30mm; Preferably, the diameter of the channel within the hollow section is 2-4 mm; Preferably, the diameter of the near end of the channel in the hollow section is 1 / 5 to 1 of the diameter of the far end.
10. The heated cigarette with a front stopper section as described in any one of claims 1-9, characterized in that, The filter tip section is made of cellulose acetate. Preferably, the length of the filter tip section is 10-30cm.