IGNITION SYSTEM FOR CIGARETTE STICK AND CIGARETTE STICK EQUIPPED THEREWITH

Abstract

The present invention relates to a traditional cigarette with a heating structure similar to that of a heat-not-burn cigarette, which provides a heat source that utilizes a chemical reaction, and provides convenience to consumers by providing a cigarette stick equipped with an ignition system that can ignite regardless of the environmental conditions of the smoking area.

Description

[Technical Field]

[0001] The present invention relates to a cigarette stick ignition system including a heat source that generates a chemical reaction by catalytic stimulation, a cigarette stick equipped with the same, and an ignition device that generates the stimulation. [Background technology]

[0002] Generally, smoking articles are luxury goods used by many people to relieve mental stress, and the main ingredient is the leaves harvested from tobacco grown in fields. The harvested tobacco leaves are dried and cut into thin strips of a specified size, and then mixed with finely powdered cocoa in a specified ratio to create tobacco powder (cut grass) that exudes a fragrant flavor.

[0003] Traditional cigarettes and combustible carbon heat sources are consumed by lighting the end of the cigarette with an ignition means such as a lighter or a match. However, there is a problem that ignition with a lighter or a match is difficult due to weather conditions such as wind or the condition of the cigarette's lighting part (e.g., combustible carbon).

[0004] Meanwhile, in the field of smoking article development, aerosol-generating articles that heat rather than burn an aerosol-forming medium, such as a tobacco-containing medium, known as heated tobacco products, have been developed and widely used. Systems using aerosol-generating articles include, for example, systems that heat a tobacco-containing medium to 200°C or higher to generate a nicotine-containing aerosol. Devices equipped with a heating system for generating the aerosol are essential for consuming heated tobacco products. These devices are systems for uniformly transferring heat to the tobacco-containing medium and are classified into internally heated, externally heated, and hybrid types. Internally heated devices heat the tobacco from the inside by inserting a blade- or needle-shaped heater (heater) into the tobacco-containing medium (tobacco substance) in the cigarette stick. Externally heated devices heat the tobacco from the inside by inserting a cylindrical heater surrounding the cigarette stick insertion space in the device.

[0005] The present invention has been completed to apply a heating structure such as a heated tobacco product to a traditional cigarette by attaching a heat source using a chemical reaction to the cigarette and providing a dedicated ignition device to facilitate easy and convenient ignition when consuming a smoking article. Summary of the Invention [Problem to be solved by the invention]

[0006] The technical problem to be solved by the present invention is to provide a cigarette stick ignition system that is designed to apply a heating structure such as a heated tobacco product to a traditional cigarette, thereby enabling uniform heat transfer to a tobacco-containing medium, and a cigarette stick equipped with the system.

[0007] Another object of the present invention is to provide an ignition device for igniting a cigarette stick ignition system.

[0008] The present invention further provides a method for generating an aerosol from a tobacco-containing medium by contacting a cigarette stick equipped with the ignition system with the ignition device to induce a chemical reaction in the heat source.

[0009] However, the technical problems that the present invention aims to achieve are not limited to those mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description. [Effects of the Invention]

[0010] The present invention provides a heat source that utilizes a chemical reaction, providing a traditional cigarette with a heating structure similar to that of a heated tobacco product, which can be lit regardless of the environmental conditions of the smoking area, providing convenience to consumers. [Brief explanation of the drawings]

[0011] [Figure 1] 1 shows the configuration of a heat source for a cigarette stick of the present invention. [Figure 2] 1 shows the configuration of a cigarette stick equipped with a heat source of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0012] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, since various modifications can be made to the embodiments, the scope of the patent application is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, or alternatives to the embodiments are included in the scope of the patent.

[0013] The terms used in the examples are used merely for the purpose of explanation and should not be construed as limiting. A singular expression includes a plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprise" or "have" and the like specify the presence of a feature, number, step, operation, component, part, or combination thereof described in the specification, and should be understood not to preclude the presence or possibility of addition of one or more other features, numbers, steps, operations, components, parts, or combinations thereof.

[0014] Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person of ordinary skill in the art to which the embodiments belong. Terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and should not be interpreted as having an ideal or overly formal meaning unless expressly defined in this application.

[0015] Furthermore, in the description with reference to the accompanying drawings, the same components are denoted by the same reference numerals regardless of the drawing numerals, and redundant description thereof will be omitted. In describing the embodiments, if it is determined that a detailed description of related publicly known technology may unnecessarily obscure the gist of the embodiments, the detailed description thereof will be omitted.

[0016] FIG. 1 shows an example of the configuration of a cigarette stick ignition system according to the present invention.

[0017] The cigarette stick ignition system of the present invention includes a cylindrical heat source 20, a metal package 10 located on one end surface of the cylindrical heat source 20, and a metal terminal 11 attached to the metal package.

[0018] The heat source 20 may be filled with or consist of a chemical reactant 21 .

[0019] The chemical reactant 21 may be composed of solid metal powder. Solid metal powder has a high energy density and is superior in safety to liquid or gas phases. Furthermore, the solid metal powder can be ignited with a small initial energy.

[0020] The chemical reactants 21 include a metal reducing agent and an oxidizing agent as main ingredients.

[0021] The metal reducing agent and oxidizing agent may be in powder form, and the size of the metal reducing agent and oxidizing agent powder may be 0.1 to 200 μm, preferably 30 to 150 μm, and more preferably 50 to 100 μm.

[0022] The chemical reactant 21 may also contain a gelling agent and a surfactant as secondary materials.

[0023] The chemical reactant 21 may contain the main raw material and the auxiliary raw material in a ratio of 7-9:3-1 based on the weight of each raw material.

[0024] The powdered solid metal reducing agent contained in the chemical reactant 21 may include aluminum (Al), zirconium (Zr), boron (B), tungsten (W), nickel (Ni), titanium (Ti), etc., and the powdered oxidizing agent is not limited as long as it can provide oxygen during the reaction, and non-limiting examples thereof include potassium perchlorate (KClO), barium chromate (BaCrO), potassium dichromate (KCrO), iron(III) oxide (FeO), etc.

[0025] FIG. 2 shows an example of the configuration of a cigarette stick equipped with the above-described ignition system.

[0026] The cigarette stick of the present invention has a cylindrical shape and includes the above-mentioned point source system on one side, and includes a liquid section 30, a medium section 40, a cooling section 50, and a filter section 60 in order of proximity to the system, and also includes a heat transfer section 22 for transferring heat generated from the heat source section 20 on the system to the medium section.

[0027] The liquid portion 30 may contain other additives, such as flavoring agents, humectants, and / or cellulose acetate compounds. For example, flavoring agents may include licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, salvia, spearmint, ginger, coriander, or coffee. Furthermore, humectants may include glycerin or propylene glycol.

[0028] The cigarette stick of the present invention may not contain the liquid portion 30 depending on the type of the medium portion.

[0029] The medium section 40 is filled with a tobacco-containing medium, which may be shredded tobacco or reconstituted tobacco. The reconstituted tobacco may be in the form of a folded wrinkled sheet, or a reconstituted tobacco sheet may be in the form of multiple tobacco strands cut into strips. For example, the medium section may be formed by combining multiple tobacco strands in the same direction (parallel) or randomly. One tobacco strand may be manufactured in the shape of a rectangular parallelepiped with a width of 1 mm, a length of 12 mm, and a thickness (height) of 0.1 mm, but is not limited thereto. Meanwhile, the medium section of the present invention may be filled with shredded tobacco used in conventional cigarettes.

[0030] The medium section 40 can generate a larger amount of aerosol when filled with tobacco strands than when filled with reconstituted tobacco sheets, and can generate a larger amount of aerosol when filled with pulverized reconstituted tobacco or shredded tobacco than when filled with tobacco strands. The tobacco strands, rather than the tobacco sheet, and the pulverized granular tobacco, rather than the tobacco strands, allow heat to be transferred more smoothly from the heat transfer section 22 or the heat source section 20 to the tobacco-containing medium inside the medium section.

[0031] The cooling unit 50 cools the aerosol generated by the heat transfer unit 22 or the heat source unit 20 heating the medium unit. Therefore, the user can inhale the aerosol cooled to an appropriate temperature. The cooling unit can be made of polylactic acid. The cooling unit can be made in various shapes to increase the surface area per unit area (i.e., the surface area in contact with the aerosol).

[0032] The filter portion 60 may be a cellulose acetate filter or may be made of a hollow recess filter, but is not limited thereto.

[0033] The heat transfer unit 22 is not limited to a material having high thermal conductivity, and a non-limiting example thereof is a carbon material. The heat transfer unit 22 is provided in the form of a thin paper that surrounds the heat source unit 20 and the medium unit 40, and can transfer thermal energy provided by the heat source unit to the medium unit in a manner similar to that of an externally heated electronic cigarette.

[0034] Meanwhile, the cigarette stick of the present invention may be provided with its sides surrounded by an outer cigarette paper 70. The outer cigarette paper 70 may be produced by applying (or coating) a predetermined substance to one or both sides of a paper wrapping material. Here, an example of the predetermined substance is silicone, but it is not limited thereto. Silicon has properties such as heat resistance (i.e., small changes due to temperature), oxidation resistance (i.e., no oxidation), resistance to various chemicals, water repellency, and electrical insulation. However, any substance other than silicone that has the above-mentioned properties may be applied (or coated) to the outer cigarette paper 70 without limitation.

[0035] The outer cigarette paper 70 can prevent the cigarette stick from burning. For example, when the medium portion 40 is heated by the heat transfer portion 22 or the heat source portion 20, the cigarette stick may burn. Specifically, when the temperature of the medium portion 40 rises above the ignition point of any of the substances contained in the medium portion 40, the cigarette stick may burn. Even in such a case, the outer cigarette paper 70 contains a non-flammable substance, so the cigarette stick can be prevented from burning.

[0036] Meanwhile, the activation energy required for the chemical reaction may vary depending on the type and size of the metal reducing agent contained in the chemical reactant inside the heat source 20 of the present invention. Under the above-mentioned conditions of the size of the chemical reactant and the type of the metal reducing agent, the activation energy required for the chemical reaction is 0.1 to 10 mJ.

[0037] In the present invention, a metal package 10 including a metal terminal 11 is placed on one end of the heat source 20 to transfer the activation energy to the heat source 20. The metal package acts as a heater and can transfer heat more uniformly inside the heat source than when heat is transferred directly to the heat source using a lighter or the like.

[0038] The metal package 10 is supplied with electricity by a separate ignition device 100. Specifically, 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 30 V and a capacitor of 10 to 300 uF and a constant voltage regulator, to apply current.

[0039] The ignition device 100 is not limited to any particular form as long as it can apply an electric current to the metal package via the metal terminal 11, and may be in a form that allows the cigarette stick of the present invention to be inserted in a manner similar to that of commercially available heated electronic cigarettes.

[0040] The ignition device 100 may include a sensor unit that senses the temperature of the heat transfer unit 22, and may include an operating unit that can generate a signal such as vibration, lighting, or sound when the temperature sensed through the sensor unit reaches a specific temperature.

[0041] According to one example of the present invention, when a cigarette stick equipped with an ignition system is inserted into ignition device 100, electricity is supplied to the ignition device via metal terminal 11, causing a chemical reaction inside heat source 20. When heat transfer unit 22 heated by heat source 20 reaches a specific temperature, the ignition device generates a signal such as vibration, lighting, or sound. A user who has been sensitized to the signal can remove the cigarette stick from ignition device 100 and inhale the aerosol through the filter unit of the cigarette stick equipped with the ignition system in the same manner as a traditional cigarette.

[0042] As described above, although the embodiments have been described using limited drawings, those skilled in the art may apply various technical modifications and variations based on the above. For example, the described techniques may be performed in a different order than described, and / or the components of the described systems, structures, devices, circuits, etc. may be combined or combined in a different manner than described, or may be substituted or replaced by other components or equivalents, and still achieve suitable results.

[0043] Therefore, other embodiments, examples, and equivalents to the claims also fall within the scope of the claims set forth below. [Industrial Applicability]

[0044] The present invention can be used as a cigarette that can be lit regardless of the environmental conditions of the smoking area, providing convenience to consumers. [Explanation of symbols]

[0045] 10: Metal package 11: Metal terminal 20:Heat source part 21: Chemical reactants 22: Heat transfer section 30: Liquid part 40: Medium part 50: Cooling section 60: Filter section 70: External cigarette paper 100: Ignition device

Claims

1. a metal package having metal terminals attached thereto; A cigarette stick heating system including a heat source portion in contact with the metal package, the heat source includes a solid metal and an oxidizer; The metal terminal receives electricity supplied via a current application device. Heating system for cigarette sticks.

2. the solid metal is in powder form; 2. The cigarette stick heating system according to claim 1, wherein the solid metal is at least one selected from the group consisting of aluminum (Al), zirconium (Zr), boron (B), tungsten (W), nickel (Ni), and titanium (Ti).

3. the oxidizing agent is in powder form; The oxidizing agent is potassium perchlorate (KClO ４ ), barium chromate (BaCrO ４ ), potassium dichromate (K ２ Cr ２ O ７ ), and iron (III) oxide (Fe ２ O ３ 2. The cigarette stick heating system according to claim 1, wherein the heating element is one or more selected from the group consisting of:

4. The cigarette stick heating system according to claim 1 , wherein the heat source further comprises a gelling agent and a surfactant.

5. The cigarette stick heating system according to claim 1 , wherein the heat source portion is cylindrical.

6. The cigarette stick heating system according to claim 1 , wherein the heat source portion has an outer surface surrounded by a heat transfer portion having high thermal conductivity.

7. A cigarette stick including the cigarette stick heating system of claim 1, The cigarette stick is cylindrical, The heating system of claim 1 is provided at one end and a filter unit is provided at the other end. A medium portion in contact with the heat source, and The cigarette stick comprises a cooling section including ends of the medium section and the filter section.

8. The cigarette stick according to claim 7 , further comprising a liquid portion between the heat source portion and the medium portion.

9. The cigarette stick according to claim 7 , wherein the cigarette stick includes one heat transfer portion surrounding the outer surfaces of the heat source portion and the medium portion.

10. The cigarette stick includes an outer cigarette paper that surrounds the outer surfaces of the heat source portion, the medium portion, the cooling portion, and the filter portion, excluding the metal package; 8. The cigarette stick of claim 7, wherein the outer cigarette paper is a paper wrapper coated with a heat-resistant substance.

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