A cigarette and its smoking set for reducing the burnt taste of heating not burning

Abstract

The application discloses a cigarette with reduced heating non-combustion burnt taste, which is mainly composed of a filter segment, an isolation segment and a heating smoking segment in sequence, the isolation segment is a low-suction resistance isolation segment or a high-suction resistance isolation segment, when the isolation segment is the low-suction resistance isolation segment, the surface of the heating smoking segment and the surface of the low-suction resistance isolation segment are respectively provided with air holes; when the isolation segment is the high-suction resistance isolation segment, the surface of the heating smoking segment and the surface of the filter segment are respectively provided with air holes.

Description

Technical fields: This invention belongs to the field of tobacco processing design, and specifically relates to a cigarette that reduces the burnt taste of heating without burning, and a smoking accessory for the cigarette. Background technology: New types of tobacco have received high attention both inside and outside the tobacco industry. Tobacco manufacturers, primarily Philip Morris International, began researching heated tobacco products as early as 2006. The main principle is to heat a substrate containing smoke-generating aerosols to produce aerosols or smoke. When inhaled, the airflow enters the tobacco section, carrying the smoke away into the mouth. Since there is no combustion of tobacco during the process, there is almost no tar, achieving a harm reduction effect. Although the above technology is feasible and simple to implement, the patent rights are held abroad, so it cannot be implemented on a large scale.

[0001] Chinese Patent 202020796468.7 describes a heated cigarette with a sealing function, which achieves a unique design concept. Although it still belongs to the category of heated tobacco substrate, it has a certain degree of innovation by changing the direction of airflow in the tobacco. However, because the tobacco substrate is coated with a smoking material (such as propylene glycol) and has a high humidity, and the heating temperature exceeds 80°C, the tobacco substrate is smoldering and heated in a sealed space. As a result, a violent Maillard reaction occurs during the heating process, producing a strong burnt taste and browning.

[0002] Chinese Patent 202010422761.1 discloses a sealed heated cigarette with a smoke channel. Based on the above airflow scheme, it describes a method for diffused smoke in a sealed heated cigarette. Although the above smoke-generating technical solution is feasible, the airflow after sealing and heating is not smooth and the diffuser is not set properly. As a result, the smoke generated by heating the tobacco substrate is still trapped between the tobacco substrates and is repeatedly heated. Therefore, the burnt taste cannot be diluted, resulting in a strong burnt taste in the smoke entering the mouth, causing discomfort.

[0003] The information disclosed in this background section is intended only to enhance the understanding of the overall background of the invention and should not be construed as an admission or in any way implying that the information constitutes prior art known to those skilled in the art. Summary of the Invention: The purpose of this invention is to provide a novel cigarette and smoking device that overcomes the above-mentioned burnt smell. By using an external diffusion space to achieve rapid diffusion of smoke, the invention aims to quickly reduce humidity, reduce Maillard reaction, and reduce the burnt smell in the smoke.

[0004] To achieve the above objectives, the present invention provides a cigarette with reduced burnt taste from heating without burning, mainly composed of a filter section, an isolation section, and a heating and smoke-generating section in sequence. The isolation section is characterized in that: it is either a low-draw resistance isolation section or a high-draw resistance isolation section; when the isolation section is a low-draw resistance isolation section, ventilation holes are provided on the surface of both the heating and smoke-generating section and the low-draw resistance isolation section; when the isolation section is a high-draw resistance isolation section, ventilation holes are provided on the surface of both the heating and smoke-generating section and the filter section.

[0005] Preferably, in the above technical solution, the vent holes distributed on the surface of the heating and smoke-generating section are smoke outlet holes, which are distributed on the axial and / or circumferential surface of the entire heating and smoke-generating section, and the diameter of each smoke outlet hole is ≥0.15mm.

[0006] Preferably, in the above technical solution, the diameter of each smoke outlet hole is ≥0.3mm, so that when the smoke-generating section is heated, the generated smoke can quickly diffuse through the smoke outlet holes.

[0007] Preferably, in the above technical solution, the ventilation holes on the surface of the low-resistance isolation section are smoke inlets, and the smoke inlets on its surface are located within a circumferential range on the side close to the heating section, and the diameter of each hole is ≥0.2mm.

[0008] Preferably, in the above technical solution, the diameter of each hole is ≥0.4-0.5mm. When inhaling, the generated smoke can enter the low-resistance isolation zone through the holes and then enter the filter section.

[0009] Preferably, in the above technical solution, the smoke inlet hole on the surface of the filter tip section is located within the circumference of the side close to the high suction barrier section, and the diameter of the smoke inlet hole on its surface is ≥0.2mm.

[0010] Preferably, in the above technical solution, the diameter of the smoke inlet hole is ≥0.4-0.5mm, so that when inhaled, the generated smoke can enter the filter section through the hole.

[0011] Preferably, in the above technical solution, the total area of ​​the N smoke outlet holes on the surface of the heating and smoke-generating section satisfies the following condition: 5% * cigarette diameter of the end face area ≤ total area of ​​the smoke outlet holes < 45% * cigarette diameter of the end face area. (Purpose: to facilitate rapid smoke diffusion) Preferably, in the above technical solution, the high suction resistance isolation section is specifically defined as follows: when the suction resistance Za-1 of air passing through the smoke inlet of the filter nozzle is less than 20% or more of the suction resistance Za-2 of air passing through the smoke outlet of the heating and smoke generation section and then entering the isolation section.

[0012] Preferably, in the above technical solution, the suction resistance Za-1 of air passing through the smoke inlet of the filter nozzle is less than 30% or more of the suction resistance Za-2 of air passing through the smoke outlet of the heating and smoke generation section and then entering the isolation section.

[0013] Preferably, in the above technical solution, the low suction resistance isolation section is specifically defined as follows: when air enters the isolation section through the smoke inlet and continues into the filter section during suction, the suction resistance Za-1 is less than 20% or more of the suction resistance Za-2 when air enters the heating and smoke generation section through the smoke outlet and then enters the isolation section.

[0014] Preferably, in the above technical solution, when air enters the isolation section and then the filter section through the smoke inlet during suction, the suction resistance Za-1 is less than 40% or more of the suction resistance Za-2 when air enters the heating and smoke generation section through the smoke outlet and then enters the isolation section.

[0015] Preferably, in the above technical solution, the low-suction resistance section is a hollow rod with smoke inlet holes on its surface.

[0016] Preferably, in the above technical solution, the high suction resistance segment is a piece of paper pasted between the heating and smoke generation segment and the filter segment, or an airtight sheet, or an adhesive coating on the end face of the filter segment, or a high suction resistance filter rod, or other devices or airflow switches with airflow resistance effects.

[0017] A heated smoking device for use with the cigarette described above includes a diffusion chamber with an internal heater, one end of the diffusion chamber is sealed and the other end is provided with a cigarette insertion port, characterized in that: an air passage seal is formed between the cigarette filter and the cigarette insertion port, and at least the part of the cigarette with a vent hole is placed in the diffusion chamber.

[0018] Preferably, in the above technical solution, the heater is an insertable internal heater, a needle-shaped heater or a plate-shaped heater, which is inserted into the heating and smoke-generating section of the cigarette to heat and generate smoke.

[0019] Compared with the prior art, the present invention has the following beneficial effects: The heater heats the inside of the cigarette, and the heat dissipates outward. After the atomizing material is atomized, it quickly leaves the tobacco substrate through the outlet holes on the surface of the cigarette and enters the diffusion chamber in the direction of heat dissipation. This reduces the moisture inside the tobacco substrate, thereby reducing the humidity required for the Maillard reaction, mitigating the browning reaction, and achieving the technical effect of reducing the burnt taste. Attached image description: Figure 1 A schematic diagram of the perforation process for a cigarette equipped with a low-resistance isolation section; Figure 2 A schematic diagram of the smoke flow for a cigarette equipped with a low-resistance isolation section; Figure 3 A schematic diagram of the perforation process for a cigarette with a high-absorption-resistance section; Figure 4 A schematic diagram of the smoke flow for a cigarette equipped with a high-absorption-resistance section; Figure 5 A schematic diagram of the smoke flow when using a smoking device in the low-resistance isolation section; Figure 6 A schematic diagram of the smoke flow when using a smoking device to draw smoke through the high-intake, obstructed section; Figure 7 A schematic diagram of the smoke path in the high suction resistance isolation section; Figure 8 A schematic diagram of the smoke path for an isolation section with low suction resistance. Detailed implementation method: The specific embodiments of the present invention will be described in detail below, but it should be understood that the scope of protection of the present invention is not limited to the specific embodiments.

[0020] Unless otherwise expressly stated, throughout the specification and claims, the term "comprising" or its variations such as "including" or "comprises" shall be understood to include the stated elements or components without excluding other elements or other components.

[0021] A heated non-combustible cigarette, mainly composed of a filter section, a low-draw resistance isolation section or a high-draw resistance isolation section, and a heating and smoke-generating section, characterized in that: When a heated non-combustible cigarette consists of a filter section, a low-resistance isolation section, and a heating and smoke-generating section, ventilation holes are provided on the surface of the heating and smoke-generating section and the surface of the low-resistance isolation section, respectively.

[0022] When a heated non-combustible cigarette consists of a filter section, a high-resistance isolation section, and a heating and smoke-generating section, ventilation holes are provided on the surface of the heating and smoke-generating section and the surface of the filter section, respectively.

[0023] The heating and smoke-generating section has smoke outlet holes on its surface. The smoke outlet holes are distributed on the axial and / or circumferential surface of the entire heating and smoke-generating section. The diameter of each smoke outlet hole is ≥0.15mm, preferably ≥0.3mm. When the smoke-generating section is heated, the generated smoke can be rapidly diffused through the smoke outlet holes (for the purpose of facilitating rapid smoke diffusion).

[0024] The isolation section is a low-resistance suction zone. The smoke inlet holes on its surface are preferably located within a circumference on the side close to the heating section. The diameter of each hole is ≥0.2mm, preferably ≥0.4-0.5mm. When sucking, the generated smoke can enter the low-resistance isolation zone through the holes and then enter the filter section.

[0025] The isolation section with smoke inlet holes, specifically the low suction resistance isolation section, is defined as follows: when air enters the isolation section through the smoke inlet holes and continues into the filter section during suction, the suction resistance Za-1 is 20% or more less than the suction resistance Za-2 of air entering the heating and smoke generation section through the smoke outlet holes and then into the isolation section. Preferably, it is 40% or more. A hollow rod with smoke inlet holes on its surface is preferred.

[0026] This design facilitates the diffusion of flue gas into the diffusion chamber, and it is preferable for the flue gas to enter the filter section through the smoke inlet of the isolation section.

[0027] The isolation section is equipped with a high suction resistance isolation device. The smoke inlet holes on the surface of the filter section connected to it are located within a circumference on the side close to the isolation device. The diameter of each hole is ≥0.3mm, preferably ≥0.4-0.5mm. When sucking, the generated smoke can enter the filter section through the holes.

[0028] A high suction resistance device is provided where the suction resistance Za-1 of air passing through the smoke inlet of the filter nozzle is 20% or more less than the suction resistance Za-2 of air passing through the smoke outlet of the heating and smoke generation section and then into the isolation section. The suction resistance of air passing through the smoke inlet of the filter nozzle is also less than approximately 20% or more, preferably 30% or more, of the suction resistance of air passing through the heating and smoke generation section, entering the isolation section, and then entering the filter nozzle. A high suction resistance filter rod is preferred, with smoke inlets provided on its surface. This arrangement ensures that air enters the filter section through the smoke inlets during suction.

[0029] The total area of ​​the N smoke outlet holes on the surface of the heated smoke-generating section satisfies the following condition: 5% * cigarette diameter of the end face area ≤ total area of ​​smoke outlet holes < 45% * cigarette diameter of the end face area. This is to facilitate rapid smoke diffusion.

[0030] The isolation device may be paper or an airtight sheet pasted between the heating and smoke-generating section and the filter section, or adhesive applied to the end face of the filter section, or a filter rod with high suction resistance, or other devices or airflow switches that have an airflow blocking effect.

[0031] Features of matching smoking accessories: The heater is an internal heater inserted into the cigarette stick and located within the diffusion chamber. The diffusion chamber has a volume ≥ 1.1 times the volume of the heated tobacco section; preferably 1.2 to 1.5 times. The diffusion chamber encompasses at least the heated tobacco section, extending to the smoke inlet. An air inlet is provided within the diffusion chamber, located on its side. After implementing the above cigarette stick and smoking device design, the heater heats the inside of the cigarette stick, dissipating the heat outwards. The atomized tobacco material, following the direction of heat dissipation, rapidly leaves the tobacco substrate through the outlet holes on the cigarette stick surface and enters the diffusion chamber. This reduces the moisture content inside the tobacco substrate, thereby reducing the humidity required for the Maillard reaction, mitigating browning, and achieving the technical effect of reducing burnt flavor.

[0032] The foregoing description of specific exemplary embodiments of the invention is for illustrative and explanatory purposes. These descriptions are not intended to limit the invention to the precise forms disclosed, and it will be apparent that many changes and variations can be made in accordance with the foregoing teachings. The exemplary embodiments were chosen and described in order to explain the specific principles of the invention and its practical application, thereby enabling those skilled in the art to implement and utilize various different exemplary embodiments of the invention, as well as various different choices and variations. The scope of the invention is intended to be defined by the claims and their equivalents.

Claims

1. A cigarette with reduced burnt taste from heating and non-combustion, comprising a filter section, an isolation section, and a heating and smoke-generating section in sequence, characterized in that: The isolation section is either a low-suction-resistance isolation section or a high-suction-resistance isolation section. When the isolation section is a low-suction-resistance isolation section, vent holes are provided on the surface of the heating and smoke-generating section and the surface of the low-suction-resistance isolation section, respectively. The vent holes on the surface of the low-suction-resistance isolation section are smoke inlets, and the smoke inlets are located within the circumference of the side closest to the heating and smoke-generating section. When the isolation section is a high-suction-resistance isolation section, vent holes are provided on the surface of the heating and smoke-generating section and the surface of the filter section, respectively. The vent holes on the surface of the filter section are smoke inlets, and the smoke inlets are located within the circumference of the side closest to the high-suction-resistance isolation section. The high suction resistance section is specifically defined as follows: when the suction resistance Za-1 of air passing through the smoke inlet of the filter nozzle is less than 20% or more of the suction resistance Za-2 of air passing through the smoke outlet of the heating and smoke generation section and then entering the isolation section. The low suction resistance isolation section is specifically defined as follows: when air enters the isolation section through the smoke inlet and continues into the filter section during suction, the suction resistance Za-1 is less than 20% or more of the suction resistance Za-2 when air enters the heating and smoke generation section through the smoke outlet and then enters the isolation section.

2. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 1, characterized in that: The ventilation holes distributed on the surface of the heating and smoke-generating section are smoke outlet holes. The smoke outlet holes are distributed on the axial and / or circumferential surface of the entire heating and smoke-generating section, and the diameter of each smoke outlet hole is ≥0.15mm.

3. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 2, characterized in that: Each of the smoke outlet holes has a diameter of ≥0.3mm, and when the smoke-generating section is heated, the generated smoke can quickly diffuse through the smoke outlet holes.

4. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 1, characterized in that: The diameter of the smoke inlet hole on the surface of each low suction resistance isolation section is ≥0.2mm.

5. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 4, characterized in that: The diameter of the smoke inlet hole on the surface of each low-suction resistance isolation section is ≥0.

4. When sucking, the generated smoke can enter the low-suction resistance isolation zone through the smoke inlet hole and then enter the filter section.

6. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 1, characterized in that: The diameter of the smoke inlet hole on the surface of the filter tip section is ≥0.2mm.

7. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 6, characterized in that: The diameter of the smoke inlet hole on the surface of the filter section is ≥0.

4. When inhaling, the generated smoke can enter the filter section through the hole.

8. The cigarette with reduced burnt smell from heating and non-combustion according to claim 1 or 2, characterized in that: The total area of ​​the N smoke outlet holes on the surface of the heating and smoke-generating section satisfies the following condition: 5% * cigarette diameter of the end face area ≤ total area of ​​smoke outlet holes < 45% * cigarette diameter of the end face area.

9. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 1, characterized in that: The high suction resistance section is specifically defined as follows: when the suction resistance Za-1 of air passing through the smoke inlet of the filter nozzle is less than 30% or more of the suction resistance Za-2 of air passing through the smoke outlet of the heating and smoke generation section and then entering the isolation section.

10. The cigarette with reduced burnt smell from heating and non-combustion according to claim 1 or 4, characterized in that: The low suction resistance isolation section is specifically defined as follows: when air enters the isolation section through the smoke inlet and continues into the filter section during suction, the suction resistance Za-1 is less than 40% or more of the suction resistance Za-2 when air enters the heating and smoke generation section through the smoke outlet and then enters the isolation section.

11. The cigarette with reduced burnt smell from heating and non-combustion as described in claim 1 or 4, characterized in that: The low suction resistance isolation section is a hollow rod with smoke inlet holes on its surface.

12. The cigarette with reduced burnt smell from heating and non-combustion according to claim 2 or 6, characterized in that: The high suction resistance barrier section is a piece of paper, an airtight sheet, or an adhesive coating on the end face of the filter section, or a high suction resistance filter rod, or other devices with airflow blocking effect, pasted between the heating and smoke generation section and the filter section.

13. A heated smoking device for use with the cigarette of claim 1, comprising a diffusion chamber with an internal heater, wherein one end of the diffusion chamber is sealed and the other end is provided with a cigarette insertion port, characterized in that: The filter tip of the cigarette and the cigarette insert form an air passage seal, and at least the parts of the cigarette with ventilation holes are placed in the diffusion chamber.

14. The heating smoke appliance according to claim 13, characterized in that: The heater is an insertable internal heater, a needle-shaped heater or a plate-shaped heater, which is inserted into the heating and smoke-generating section of the cigarette to heat and generate smoke.

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