A heat-not-burn cigarette and method of use

By reverse-engineering the flue gas path and using the blocking section, the problem of insufficient smoke volume in heated non-combustible cigarettes was solved, increasing smoke volume and storage capacity, and allowing the use of materials that improve sensory quality, thus meeting regulatory requirements.

CN117223891BActive Publication Date: 2026-03-24CHINA TOBACCO YUNNAN IND
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-06-07
Publication Date
2026-03-24

AI Technical Summary

Technical Problem

Existing heated tobacco products suffer from problems such as insufficient smoke volume, low initial smoke volume, low smoke retention, and inability to use materials that improve sensory quality.

Method used

Design a heated non-combustible cigarette with a smoke path that enters from the cigarette's smoking section. Air enters from the near-lip end of the smoking section, and through the design of the air inlet cavity section and the smoke return cavity section, the smoke flows in reverse, enters the smoking device, passes through the filter section, and is finally discharged from the smoke return port. Combined with a blocking section, the smoke flow is controlled.

Benefits of technology

It increases the amount of smoke, especially during the initial inhale, increases smoke storage, and allows the use of combustible cigarette paper that improves sensory quality, in compliance with regulations.

✦ Generated by Eureka AI based on patent content.

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Abstract

The application discloses a kind of heating non-combustible cigarette and use method, in turn smoke section (11), air inlet cavity section (12), obstruction section (13), back smoke cavity section (14) and filter section (15);The air inlet cavity section (12) side wall is provided with air inlet (161);The back smoke cavity section (14) side wall is provided with back smoke port (162).The cigarette of the application must be used with matched smoking set.The matched smoking set can be circumferential heating type, or central heating type.The airflow of the cigarette of the application is reversed through the smoke section, is better heated, and the smoke is less trapped, which can solve the problem of small smoke amount in the first few puffs of heated cigarette;And the storage smoke amount is increased, and the puff-by-puff and overall smoke amount are significantly increased;And it can fundamentally comply with the restrictions of some regulations, and some combustible cigarette paper that can improve the taste can be legally applied in cigarette design.
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Description

Technical Field

[0001] This invention belongs to the field of novel tobacco technology, specifically relating to a heated non-combustible cigarette and its usage method. Background Technology

[0002] With the improvement of living standards, people are paying more and more attention to their health, and in recent years, there has been a high level of concern about the health effects of smoking. To meet changing consumer demands, major domestic and international companies have developed various hollow tobacco products to replace traditional cigarettes. Among these growing hollow tobacco products, e-cigarettes and heated tobacco products are among the most popular.

[0003] As an extension of electronic products into the tobacco industry, e-cigarettes have the advantage of highly variable flavor, allowing for arbitrary control of the flavor of the smoke by adjusting the composition of the e-liquid. However, since the smoke is mainly generated by an electronic atomizer, its taste, especially the heat sensation, still differs from that of traditional cigarettes that are heated to produce smoke, resulting in lower acceptance among long-time smokers.

[0004] Heated cigarettes produce smoke by heating flavoring agents loaded onto a tobacco sheet, and their production principle is somewhat similar to that of traditional cigarettes, resulting in a more palatable smoke flavor. Currently, commercially available heated cigarettes are mainly divided into two types based on the heating position: center-heated (such as IQOS) and circumferentially heated (such as GLO); however, regardless of the type, they all follow the traditional smoke path of traditional cigarettes, following a straight path from the distal to proximal end. This design has several drawbacks for heated cigarettes: ① Regardless of whether it's center heating or circumferential heating, to prevent the mouthpiece from getting too hot, the heating of the near-lip end of the cigarette's smoke-generating section is often the worst. This results in a large amount of smoke being trapped near the lip end during the initial inhale, leading to a small amount of smoke in the early stages. ② To control the overall length of the cigarette, the hollow parts in the mouthpiece design are generally quite short, resulting in a small smoke storage capacity and limiting the amount of smoke per puff, creating a bottleneck in the overall smoke volume. ③ Due to regulations in some regions, heated cigarettes must be non-flammable, making it impossible to use materials that can improve sensory quality, such as aluminized cigarette paper, in traditional designs.

[0005] To address the above technical problems, this invention is proposed. Summary of the Invention

[0006] This invention provides a heated non-combustible cigarette, wherein the smoke enters from the cigarette's smoking section, air enters from the near-lip end of the smoking section, flows out from the far-lip end of the smoking section, enters the smoking device used with the cigarette, and then flows through the filter section into the consumer's mouth.

[0007] A heated non-combustible cigarette, comprising, in sequence, a smoke-generating section 11, an air-inlet cavity section 12, a blocking section 13, a smoke-returning cavity section 14, and a filter section 15;

[0008] An air inlet 161 is provided on the side wall of the air inlet cavity section 12;

[0009] A smoke return port 162 is provided on the side wall of the smoke return cavity section 14.

[0010] Preferably, the smoke-generating section 11 contains particulate smoke-generating material, bar-shaped smoke-generating material, or sheet-shaped smoke-generating material arranged in an ordered or disordered manner.

[0011] Preferably, the air inlet 161 is arranged in one or more rows along the circumference of the air inlet cavity section 12, and the smoke return outlet 162 is arranged in one or more rows along the circumference of the smoke return cavity section 14.

[0012] Preferably, the blocking section 13 is an airtight plastic section, a rubber section, or a high-resistance filament section with a suction resistance at least 50 times that of the smoke-generating section 1.

[0013] Preferably, the smoke-generating section 11 is wrapped with cigarette paper, which is either combustible cigarette paper or non-combustible composite paper.

[0014] The second aspect of the present invention provides a method for using the heated non-combustible cigarette described in the first aspect, comprising the following steps: inserting the heated non-combustible cigarette into a matching smoking device, the matching smoking device having an inlet communicating with the distal lip end of the smoke-generating section 11 and an outlet communicating with the return smoke outlet; air entering from the air inlet 161 and entering the smoke-generating section from the proximal lip end of the smoke-generating section 11, carrying the smoke generated after the smoke-generating section is heated, and flowing out from the distal lip end of the smoke-generating section 11, sequentially flowing through the inlet of the matching smoking device, the outlet of the matching smoking device, the return smoke outlet 162, the return smoke cavity section 14, and entering the filter section 15.

[0015] Beneficial results of the present invention:

[0016] 1. The air inlet of the heated non-combustible cigarette of the present invention is the air inlet cavity section in the middle section of the cigarette. Compared with ordinary cigarettes, the airflow of the smoke generated after the heated non-combustible cigarette is heated passes through the smoke-generating section in the opposite direction, that is, from the near lip end of the smoke-generating section to the far lip end of the smoke-generating section, and enters the smoking device used with it. Finally, it enters the filter section from the smoke return port. Its actual smoke outlet is far away from the filter section, so it is heated to a better degree and the smoke retention is small, which can solve the problem of small smoke volume in the first few puffs of heated cigarettes.

[0017] 2. The heated non-combustible cigarette of the present invention reserves the smoke storage section for the matching smoking device, thereby increasing the amount of smoke stored and significantly increasing the amount of smoke per puff and the total amount of smoke.

[0018] 3. Due to the presence of the blocking section, the heated non-combustible cigarette of this invention cannot be burned, which fundamentally complies with some regulatory restrictions. Some combustible cigarette papers that can improve the taste can be legally applied in cigarette design. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the structure of the heated non-combustible cigarette of the present invention.

[0020] Explanation of reference numerals in the attached figures:

[0021] 11-Smoke-generating section; 12-Air inlet cavity section; 13-Blocking section; 14-Smoke return cavity section; 15-Filter section; 161-Air inlet; 162-Smoke return port. Detailed Implementation

[0022] The specific embodiments of the present invention are described below with reference to the accompanying drawings. The drawings are merely illustrative and are not intended to limit the scope of the present invention in any way.

[0023] Example 1

[0024] The design of heated tobacco products is as follows:

[0025] The heated non-combustible cigarette includes, in sequence, a smoke-generating section 11, an air-inlet cavity section 12, a blocking section 13, a smoke-returning cavity section 14, and a filter section 15. An air inlet 161 is provided on the side wall of the air-inlet cavity section 12, and a smoke-returning outlet 162 is provided on the side wall of the smoke-returning cavity section 14.

[0026] The smoke-generating section 11 is composed of orderly arranged sheet-like smoke-generating material, and the outer layer of the smoke-generating section 11 is wrapped with ordinary combustible cigarette paper; the blocking section 13 is made of airtight plastic.

[0027] A standard-structure, center-heated cigarette (same structure as IQOS) made from the same smoking material was selected as a control sample. Composite aluminum foil was used as the cigarette paper to prevent ignition.

[0028] The two sample cigarettes were smoked on their respective matching smoking devices, with the heating procedures being identical for both devices. Smoke volume was measured using the conventional method for smoking heated cigarettes. Compared to the control sample, the smoke volume of the first three puffs of the heated non-combustible cigarette of this invention was on average 72% higher than that of the control sample; the average smoke volume of each puff during the smoking process was 34% higher than that of the control sample, and there was no metallic smell produced by the composite aluminum foil.

[0029] Example 2

[0030] The design of heated tobacco products is as follows:

[0031] The heated non-combustible cigarette includes, in sequence, a smoke-generating section 11, an air-inlet cavity section 12, a blocking section 13, a smoke-returning cavity section 14, and a filter section 15. An air inlet 161 is provided on the side wall of the air-inlet cavity section 12, and a smoke-returning outlet 162 is provided on the side wall of the smoke-returning cavity section 14.

[0032] The smoke-generating section 11 is made of randomly arranged sheet-like smoke-generating material, and the outer layer of the smoke-generating section is wrapped with aluminum-coated combustible cigarette paper; the blocking section 13 is made of airtight rubber.

[0033] A standard circumferentially heated cigarette (same structure as GLO) made from the same smoking material was selected as a control sample. Composite aluminum foil was used as the cigarette paper to prevent ignition.

[0034] The two sample cigarettes were smoked on their respective matching smoking devices, with both devices using the same heating procedure. Smoke volume was measured using the conventional method for smoking heated cigarettes. Compared to the control sample, the smoke volume of the first three puffs of the heated non-combustible cigarette of this invention was on average 83% higher than the control sample; the average smoke volume of each puff during the smoking process was 47% higher than the control sample, and there was no metallic smell produced by the composite aluminum foil.

[0035] Example 3

[0036] The design of heated tobacco products is as follows:

[0037] The heated non-combustible cigarette includes, in sequence, a smoke-generating section 11, an air-inlet cavity section 12, a blocking section 13, a smoke-returning cavity section 14, and a filter section 15. An air inlet 161 is provided on the side wall of the air-inlet cavity section 12, and a smoke-returning outlet 162 is provided on the side wall of the smoke-returning cavity section 14.

[0038] The smoke-generating section 11 is made of granular smoke-generating material, and the cigarette paper wrapped around the outer layer of the smoke-generating section is flavored combustible cigarette paper with an air permeability of 35 CU; the blocking section 13 is a high-resistance tow section, whose resistance is 55 times that of the smoke-generating section 11.

[0039] A standard-structure, center-heated cigarette (same structure as IQOS) made from the same smoking material was selected as a control sample. Composite aluminum foil was used as the cigarette paper to prevent ignition.

[0040] The two sample cigarettes were smoked on their respective matching smoking devices, with both devices using the same heating procedure. Smoke volume was measured using the conventional method for smoking heated cigarettes. Compared to the control sample, the smoke volume of the first three puffs of the heated non-combustible cigarette of this invention was on average 64% higher than the control sample; the average smoke volume of each puff during the smoking process was 29% higher than the control sample, and there was no metallic smell produced by the composite aluminum foil.

[0041] Example 4

[0042] The design of heated tobacco products is as follows:

[0043] The heated non-combustible cigarette includes, in sequence, a smoke-generating section 11, an air-inlet cavity section 12, a blocking section 13, a smoke-returning cavity section 14, and a filter section 15. An air inlet 161 is provided on the side wall of the air-inlet cavity section 12, and a smoke-returning outlet 162 is provided on the side wall of the smoke-returning cavity section 14.

[0044] The smoke-generating section 11 is a rod-shaped smoke-generating material, and the outer cigarette paper is a non-combustible composite aluminum foil cigarette paper; the blocking section 13 is a plasticized fiber bundle section, and its suction resistance is 98 times that of the smoke-generating section 11.

[0045] A standard circumferentially heated cigarette (same structure as GLO) made from the same smoking material was selected as a control sample. Composite aluminum foil was used as the cigarette paper to prevent ignition.

[0046] The two sample cigarettes were smoked on their respective matching smoking devices, with both devices using the same heating procedure. Smoke volume was measured using the conventional method for heating cigarettes. Compared to the control sample, the smoke volume of the heated cigarette of this invention was on average 78% higher in the first three puffs; the average smoke volume of each puff during the smoking process was 42% higher than that of the control sample.

[0047] The method of using the heated non-combustible cigarette of the present invention includes the following steps: inserting the heated non-combustible cigarette into a matching smoking device, the matching smoking device having an inlet communicating with the distal lip end of the smoke-generating section 11 and an outlet communicating with the return smoke outlet; air enters from the air inlet 161 and enters the smoke-generating section from the proximal lip end of the smoke-generating section 11, carrying the smoke generated after the smoke-generating section is heated and flowing out from the distal lip end of the smoke-generating section 11, flowing sequentially through the inlet of the matching smoking device, the outlet of the matching smoking device, the return smoke outlet 162, the return smoke cavity section 14 and entering the filter section 15.

[0048] It is understood that the present invention has been described through some embodiments, and those skilled in the art will recognize that various changes or equivalent substitutions can be made to these features and embodiments without departing from the spirit and scope of the invention. Furthermore, under the teachings of the present invention, these features and embodiments can be modified to adapt to specific situations and materials without departing from the spirit and scope of the invention. Therefore, the present invention is not limited to the specific embodiments disclosed herein, and all embodiments falling within the scope of the claims of this application are within the protection scope of the present invention.

Claims

1. A heated non-combustible cigarette and its method of use, characterized in that, It consists of, in sequence, a smoke-generating section (11), an air-inlet cavity section (12), a blocking section (13), a smoke-returning cavity section (14), and a filter section (15). An air inlet (161) is provided on the side wall of the air inlet cavity section (12). A smoke return port (162) is provided on the side wall of the smoke return cavity section (14). Among them, the smoke-generating section (11) is a sheet-like smoke-generating material arranged in a disordered manner, and the cigarette paper wrapped around the outer layer of the smoke-generating section (11) is aluminum-plated combustible cigarette paper; the blocking section (13) is an airtight rubber. The method of using this type of heated non-combustible cigarette includes the following steps: inserting the heated non-combustible cigarette into the matching smoking device, the matching smoking device having an inlet connected to the far lip end of the smoke-generating section (11) and an outlet connected to the return smoke outlet, air entering from the air inlet (161) and entering the smoke-generating section from the near lip end of the smoke-generating section (11) and carrying the smoke generated after the smoke-generating section is heated, flowing out from the far lip end of the smoke-generating section (11), flowing sequentially through the inlet of the matching smoking device, the outlet of the matching smoking device, the return smoke outlet (162), the return smoke cavity section (14) and entering the filter section (15).

2. The heated non-combustible cigarette and its method of use according to claim 1, characterized in that, The air inlet (161) is arranged in one or more rows along the circumference of the air inlet cavity section (12), and the smoke return port (162) is arranged in one or more rows along the circumference of the smoke return cavity section (14).

Citation Information

Patent Citations

  • Heat-not-burn cigarette, smoking set and application

    CN111820453A

  • Intermediate breathable ternary composite filter stick and heating cigarette comprising same

    CN113197343A