Ignition system for a cigarette rod and a cigarette rod provided with the same

By introducing a heat source and ignition device for chemical reactions into traditional cigarettes, the problem of ignition of traditional cigarettes under adverse weather conditions is solved, achieving convenient ignition and aerosol generation, similar to the heating effect of heated cigarettes.

CN117295414BActive Publication Date: 2026-04-14KT&G CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
Filing Date
2022-11-24
Publication Date
2026-04-14

AI Technical Summary

Technical Problem

Traditional cigarettes are difficult to light in adverse weather conditions, and the heating structure of heated cigarettes cannot be directly applied to traditional cigarettes, making them inconvenient to light.

Method used

The heat source is combined with an ignition device through a chemical reaction. Heat is generated and uniform heating is provided through a chemical reaction, similar to the heating structure of a heated cigarette. Metal powder is used as the chemical reaction substance, including metal reducing agent and oxidizing agent. Heat transfer is achieved through metal encapsulation and ignition device.

Benefits of technology

It allows for easy ignition of cigarettes under various environmental conditions, providing a convenient smoking experience, and generates aerosols through chemical reactions.

✦ Generated by Eureka AI based on patent content.

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Abstract

The present invention relates to a conventional cigarette which provides a heat source section using a chemical reaction and has a heating structure similar to a heat-type cigarette, and can provide a cigarette rod to which a lighting system is attached and which can be ignited regardless of environmental conditions of a smoking place, thereby providing convenience to consumers.
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Description

Technical Field

[0001] This invention relates to an ignition system for cigarette sticks, a cigarette stick on which the system is installed, and an ignition device for generating catalytic stimulation, wherein the cigarette stick system includes a heat source that causes a chemical reaction through catalytic stimulation. Background Technology

[0002] Generally speaking, many people like to relieve mental stress through tobacco products. The main raw material of tobacco products is tobacco powder (shredded tobacco). Tobacco powder (shredded tobacco) is made by taking only the leaves of tobacco grown in the field, drying the tobacco leaves, cutting them into a certain size, and mixing them with a predetermined proportion of cocoa powder to create aroma.

[0003] Traditionally, cigarettes and combustible carbon heat sources are used by igniting the end of the cigarette with a lighter or match. However, this method may be difficult to use a lighter or match to ignite the cigarette in windy conditions or depending on the location of the ignition (e.g., combustible carbon).

[0004] On the other hand, in recent years, aerosol-generating products known as heated cigarettes have emerged and become widely used in the development of smoking products. These products heat rather than burn the aerosol-generating medium, such as a tobacco-containing medium. For example, systems using aerosol-generating products heat the tobacco-containing medium at temperatures above 200°C to generate nicotine-containing aerosols. When consuming heated tobacco, equipment equipped with a heating system must be used to generate the aerosol. Systems that uniformly transfer heat to the tobacco-containing medium in such equipment are categorized into internal heating, external heating, and mixed heating types. Internal heating involves a blade-shaped or needle-shaped heater penetrating the tobacco-containing medium (tobacco material) within the cigarette holder, thereby heating the tobacco from the inside. External heating involves a cylindrical heater enclosing the cigarette holder insertion space, thereby heating the tobacco material within the cigarette holder from the outside in.

[0005] The purpose of this invention is to apply a heating structure similar to that of heated cigarettes to conventional cigarettes, attaching a heat source that utilizes a chemical reaction to the cigarette and providing a dedicated ignition device, thereby making it easier to light cigarettes when consuming smoking products. This invention is thus completed. Summary of the Invention

[0006] The problem to be solved

[0007] The technical problem to be solved by the present invention is to provide an ignition system for a cigarette stick and a cigarette stick equipped with the system, which uses a heating structure similar to that of a heated cigarette for a conventional cigarette, thereby uniformly transferring heat to the tobacco-containing medium.

[0008] Another object of the present invention is to provide an ignition device for igniting a cigarette stick ignition system.

[0009] Furthermore, the present invention also provides a method for inducing a chemical reaction of the heat source by contacting an ignition device with a cigarette stick on which the ignition system is installed, thereby generating an aerosol from a tobacco-containing medium.

[0010] However, the technical problems to be solved by the present invention are not limited to those described above, and those skilled in the art will clearly understand from the following description other problems not mentioned.

[0011] Invention Effects

[0012] This invention provides a conventional cigarette with a heating structure similar to that of a heated cigarette, utilizing a heat source section based on a chemical reaction. In this invention, ignition occurs regardless of the environmental conditions of the smoking location, providing convenience for consumers. Attached Figure Description

[0013] Figure 1 The structure of the heat source for cigarette sticks of the present invention is shown.

[0014] Figure 2 The structure of the cigarette stick with a heat source installed according to the present invention is shown. Detailed Implementation

[0015] The embodiments will now be described in detail with reference to the accompanying drawings. It should be understood that various modifications can be made to the embodiments, and the scope of this application is not limited to the embodiments described below. All modifications to the embodiments, their equivalents, and even their substitutes are within the scope of this invention.

[0016] The terminology used in the embodiments is for illustrative purposes only and is not intended to limit the scope. Unless otherwise specified in the content, a single modifier may have multiple meanings. In this specification, terms such as "comprising" or "having" are used to express the presence of the features, numbers, steps, operations, constituent elements, accessories, or combinations thereof described in the specification, and do not exclude the possibility of the presence or additional addition of one or more other features, numbers, steps, operations, constituent elements, accessories, or combinations thereof.

[0017] Unless otherwise defined, all terms used herein, including technical and scientific terms, shall have the ordinary meaning as understood by one of ordinary skill in the art. Terms commonly used, such as those defined in dictionaries, shall be understood as having the meaning in the relevant technical content, and shall not be interpreted as having an idealized or overly formal meaning unless explicitly defined in this specification.

[0018] Furthermore, in the description with reference to the accompanying drawings, the same reference numerals are used for the same constituent elements regardless of the drawing numbers, and repeated descriptions are omitted. In describing the embodiments, detailed descriptions of relevant well-known technologies are omitted when it is determined that such detailed descriptions would unnecessarily obscure the embodiments.

[0019] Figure 1 This is an example of the structure of the ignition system for cigarette sticks of the present invention.

[0020] The cigarette stick ignition system of the present invention includes a cylindrical heat source 20, a metal encapsulation 10 located at one end thereof, and a metal terminal 11 attached to the metal encapsulation.

[0021] The heat source section 20 may be filled with or composed of a chemically reactive substance 21.

[0022] The chemical reactant 21 can be composed of solid metal powder. Solid metal powder has a high energy density and exhibits better reaction stability compared to liquids or gases. Furthermore, the initial energy required to ignite the solid metal powder is relatively low.

[0023] The chemical reaction substance 21 includes metal reducing agents and oxidizing agents as the main materials.

[0024] The metal reducing agent and oxidizing agent can be in powder form, and the size of the metal reducing agent and oxidizing agent powder can be from 0.1 μm to 200 μm, preferably from 30 μm to 150 μm, and more preferably from 50 μm to 100 μm.

[0025] In addition, the chemical reaction substance 21 may include gelling agents and surfactants as excipients.

[0026] The ratio of the main material and auxiliary material in the chemical reaction substance 21 can be 7 to 9:3 to 1 based on their respective weights.

[0027] The powdered solid metal reducing agent contained in the chemical reactant 21 may include aluminum (Al), zirconium (Zr), boron (B), tungsten (W), nickel (Ni), and titanium (Ti), etc. The powdered oxidizing agent is not limited, as long as it can provide oxygen during the reaction. Non-limiting examples include potassium perchlorate (KClO4), barium chromate (BaCrO4), potassium dichromate (K2Cr2O7), and iron(III) oxide (Fe2O3), etc.

[0028] Figure 2 This is an example of the structure of a cigarette stick equipped with the aforementioned ignition system.

[0029] The cigarette stick of the present invention is cylindrical, and one side of it includes the aforementioned ignition system. It includes a liquid section 30, a medium section 40, a cooling section 50 and a filter section 60 in order from near to far from the system. It also includes a heat transfer section 22 for transferring the heat generated by the heat source section 20 of the system to the medium section.

[0030] The liquid portion 30 may contain flavoring agents, humectants, and / or other additives such as cellulose acetate compounds. For example, flavoring agents may include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, sage, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, peppermint oil, cinnamon bark, parsley seed, brandy, jasmine, chamomile, menthol, ylang-ylang, tanshinone, spearmint, ginger, coriander, or coffee, etc. Additionally, humectants may include glycerin or propylene glycol, etc.

[0031] The cigarette stick of the present invention may exclude the liquid portion 30 depending on the type of the medium portion.

[0032] The medium portion 40 can be filled with a tobacco-containing medium, which can be shredded tobacco or reconstituted tobacco. The reconstituted tobacco can be a folded, wrinkled sheet, or it can be in the form of multiple tobacco shreds cut from reconstituted tobacco sheets. For example, the medium portion can be formed by multiple tobacco shreds arranged in the same direction (parallel) or randomly. A single tobacco shred can be made into a cuboid with a horizontal length of 1 mm, a vertical length of 12 mm, and a thickness (height) of 0.1 mm, but is not limited thereto. On the other hand, the medium portion of the present invention can be filled with tobacco used in conventional cigarettes.

[0033] Compared to filled reconstituted tobacco sheets, the medium section 40 generates more aerosol when filled with tobacco shreds, and generates an even greater amount of aerosol when filled with pulverized reconstituted tobacco or tobacco shreds. Tobacco shreds are superior to tobacco sheets, and pulverized tobacco leaves are superior to tobacco shreds, allowing for better heat transfer from the heat transfer section 22 and even the heat source section 20 to the tobacco-containing medium within the medium section.

[0034] The cooling section 50 cools the aerosol generated when the heat transfer section 22 and even the heat source section 20 heat the medium section. This allows the user to inhale the aerosol cooled to a suitable temperature. The cooling section can be made of polylactic acid. The cooling section can be made in various shapes to increase the surface area per unit area (i.e., the surface area in contact with the aerosol).

[0035] The filter section 60 may be a cellulose acetate filter section, or it may be made into a hollow grooved filter section, but it is not limited thereto.

[0036] The heat transfer section 22 can be made of any material with high thermal conductivity, with carbon materials being a non-limiting example. The heat transfer section 22 is a thin paper-like structure that wraps around the heat source section 20 and the medium section 40, and can transfer heat from the heat source section to the medium section, similar to an externally heated electronic cigarette.

[0037] On one hand, the sides of the cigarette stick of the present invention can be wrapped with an outer cigarette paper 70. The outer cigarette paper 70 can be made by applying (or coating) a predetermined material to one or both surfaces of a paper packaging material. Here, the predetermined material can be silicon, but is not limited to it. Silicon has properties such as heat resistance that does not change with temperature, oxidation resistance that does not oxidize, resistance to various agents, water resistance, or electrical insulation. In addition to silicon, any material having the above-mentioned properties can be used without limitation to coat the outer cigarette paper 70.

[0038] The outer cigarette paper 70 prevents the cigarette stick from burning. For example, the cigarette stick may burn when the heat transfer section 22 or even the heat source section 20 heats the medium section 40. Specifically, the cigarette stick will burn when the temperature exceeds the ignition point of any material contained in the medium section 40. Even in this case, the cigarette stick is prevented from burning because the outer cigarette paper 70 contains a non-combustible material.

[0039] Furthermore, the activation energy required for the chemical reaction varies depending on the type and size of the metal reducing agent contained in the chemical reactant within the heat source section 20 according to the present invention. Under the aforementioned conditions of the size of the chemical reactant and the type of metal reducing agent, the activation energy required for the chemical reaction is 0.1 to 10 mJ.

[0040] In this invention, a metal package 10 including a metal terminal 11 is disposed on one end face of the heat source section 20 to transfer the activation energy to the heat source section 20 of this invention. The metal package acts as a heater, and compared with the method of directly transferring heat to the heat source using a lighter or the like, it can evenly transfer heat to the interior of the heat source section.

[0041] The metal package 10 can receive power through a separate ignition device 100. Specifically, the metal terminals 11 of the metal package 10 are in contact with the ignition device 100, which includes a small battery with a voltage of 5 to 30V, a capacitance of 10 to 300μF, and a voltage regulator, thereby applying current.

[0042] The form of the ignition device 100 is not limited in any way, as long as current can be applied to the metal package through the metal terminal 11, and it can be inserted into the cigarette stick of the present invention like a commercially available heated electronic cigarette.

[0043] The ignition device 100 may include a sensing unit for detecting the temperature of the heat transfer section 22, and may also include an operation unit that generates signals such as vibration, light emission or sound when the temperature sensed by the sensing unit reaches a specific temperature.

[0044] According to an example of the present invention, when a cigarette stick equipped with an ignition system is inserted into an ignition device 100, the ignition device supplies power through a metal terminal 11 to cause a chemical reaction in the heat source section 20. When the heat transfer section 22 heated by the heat source section 20 reaches a specific temperature, the ignition device generates signals such as vibration, light, or sound. The user who senses the signal removes the cigarette stick from the ignition device 100 and can inhale the aerosol through the filter section of the cigarette stick equipped with the ignition system in a manner similar to that of a conventional cigarette.

[0045] While the embodiments described above are based on limited examples and accompanying drawings, those skilled in the art can make various modifications and changes based on the foregoing description. For example, suitable results can also be obtained if the described techniques are performed in a different order than the described methods, and / or if the constituent elements in the described system, architecture, apparatus, or circuit are combined or integrated in different forms, or replaced or substituted by other constituent elements or equivalents.

[0046] Therefore, other embodiments, other examples, and equivalents of the claims should be interpreted as being included within the scope of the appended claims.

[0047] Explanation of reference numerals in the attached figures

[0048] 11: Metal terminals

[0049] 10: Metal encapsulation components

[0050] 20: Heat Source Department

[0051] 21: Chemical reaction substances

[0052] 22: Heat transfer section

[0053] 30: Liquid Section

[0054] 40: Medium section

[0055] 50: Cooling section

[0056] 60: Filter section

[0057] 70: Outer cigarette paper

[0058] 100: Ignition device

[0059] Industrial utilization potential

[0060] This invention allows for ignition that is independent of the environmental conditions of the smoking location, thus providing convenience for consumers.

Claims

1. An ignition system for cigarette sticks, characterized in that, include: Metal package with attached metal terminals, and The heat source section is in contact with the metal encapsulation component; The heat source includes a solid metal and an oxidant; The metal terminal comes into contact with the ignition device, thereby being subjected to current.

2. The ignition system for cigarette sticks according to claim 1, characterized in that, The solid metal is in powder form. The solid metal is selected from one or more of the group consisting of aluminum, zirconium, boron, tungsten, nickel, and titanium.

3. The ignition system for cigarette sticks according to claim 1, characterized in that, The oxidant is in powder form. The oxidant is selected from one or more of the group consisting of potassium perchlorate, barium chromate, potassium dichromate, and iron oxide.

4. The ignition system for cigarette sticks according to claim 1, characterized in that, The heat source section also includes a gelling agent and a surfactant.

5. The ignition system for cigarette sticks according to claim 1, characterized in that, The heat source is cylindrical.

6. The ignition system for cigarette sticks according to claim 1, characterized in that, The outer surface of the heat source is wrapped by a heat transfer part with high thermal conductivity.

7. A cigarette stick, comprising the ignition system for a cigarette stick as described in claim 1, characterized in that, The cigarette stick is cylindrical, with one end including the ignition system as described in claim 1 and the other end including a filter. The cigarette stick includes: The medium part, in contact with the heat source part, and A cooling section is disposed between the medium section and the filter section.

8. The cigarette stick according to claim 7, characterized in that, The cigarette stick also includes a liquid section located between the heat source section and the medium section.

9. The cigarette stick according to claim 7, characterized in that, The cigarette stick includes a heat transfer section that wraps the outer surface of the heat source section and the medium section.

10. The cigarette stick according to claim 7, characterized in that, The cigarette stick includes an outer cigarette paper that wraps the outer surfaces of the metal encapsulation component, the heat source section, the medium section, the cooling section, and the filter section. The outer cigarette paper is a paper packaging material coated with a heat-resistant substance.

11. An ignition device, characterized in that, A small battery and a voltage stabilizer of a capacitor are included.​ 12. The ignition device according to claim 11, characterized in that, The ignition device includes: The sensing unit senses the temperature of the outer surface of the cigarette stick; and The operating unit generates vibration, light emission, and / or sound signals when the sensing unit senses a specific temperature.

Citation Information

Patent Citations

  • Insulated heat source

    CN104602554A

  • Smoking article

    CN108601403A

  • Electronic cigarette igniting device

    CN109619706A