Cooling segment for aerosol product and aerosol product including the same

Abstract

An aerosol product according to an embodiment relates to an aerosol product comprising a tobacco rod containing a tobacco material, a cooling segment located downstream of the tobacco rod, and a mouthpiece located downstream of the cooling segment, wherein the cooling segment comprises a first sheet forming at least a portion of the outer surface of the cooling segment, a second sheet forming a passage within the cooling segment through which the aerosol travels along the longitudinal direction of the aerosol product, and a third sheet pressed between the first sheet and the second sheet.

Description

[Technical Field]

[0001] The present invention relates to a cooling segment for an aerosol product and an aerosol product including the same, and more particularly to a cooling segment capable of improving cooling efficiency and an aerosol product including the same. [Background technology]

[0002] Recently, there has been an increasing demand for alternative methods to overcome the shortcomings of conventional cigarettes. For example, there has been an increasing demand for methods of generating aerosol by heating an aerosol-generating substance, rather than by burning a cigarette. This has led to active research into heated aerosol generators. Summary of the Invention [Problem to be solved by the invention]

[0003] Various embodiments provide a cooling segment for an aerosol product and an aerosol product including the same. A heated aerosol product in which an aerosol is generated by heating an aerosol-generating material within the aerosol product requires a means for cooling the aerosol, since the user may feel a heat sensation as the aerosol moves within the aerosol product.

[0004] In particular, in summer, the temperature of the aerosol transferred to the user may be higher due to the moisture contained in the aerosol, so a configuration that can remove the moisture contained in the aerosol and perform cooling more efficiently is required.

[0005] The problems to be solved through the embodiments are not limited to the problems mentioned above, and problems not mentioned will be clearly understood by a person having ordinary skill in the art to which the embodiments pertain from this specification and the accompanying drawings. [Means for solving the problem]

[0006] An aerosol product according to one embodiment includes a tobacco rod containing a tobacco material, a cooling segment located downstream of the tobacco rod, and a mouthpiece located downstream of the cooling segment, the cooling segment including a first sheet forming at least a portion of the outer surface of the cooling segment, a second sheet forming a passage within the cooling segment through which an aerosol travels along the longitudinal direction of the aerosol product, and a third sheet pressed between the first sheet and the second sheet.

[0007] In one embodiment, a cooling segment for an aerosol product includes a first sheet forming at least a portion of the outer surface of the cooling segment, a second sheet forming a passage within the cooling segment through which aerosol travels along the longitudinal direction of the aerosol product, and a third sheet pressed between the first and second sheets. [Effects of the Invention]

[0008] The aerosol products of the present invention provide improved cooling, reducing the heat experienced by consumers in the hands and mouth area as the aerosol travels during smoking.

[0009] The effects of the embodiments are not limited to the effects described above, and any effects not mentioned will be clearly understood by a person skilled in the art to which the embodiments pertain from this specification and the accompanying drawings. [Brief explanation of the drawings]

[0010] [Figure 1] 1 is a diagram showing an example in which an aerosol product is inserted into an aerosol generating device according to an embodiment. [Figure 2] 1 is a diagram showing an example in which an aerosol product is inserted into an aerosol generating device according to an embodiment. [Figure 3] 1 is a diagram showing an example in which an aerosol product is inserted into an aerosol generating device according to an embodiment. [Figure 4A] 1 is a cross-sectional view showing an example of an aerosol production product. [Figure 4B] 1 is a cross-sectional view showing an example of an aerosol production product. [Figure 5A] FIG. 1 is a side view illustrating a cooling segment for an aerosol product according to one embodiment. [Figure 5B] FIG. 5B is a cross-sectional view of FIG. 5A. [Figure 6A] 4 is a diagram illustrating a schematic view of airflow movement in a first airflow passage in a cooling segment according to an embodiment. [Figure 6B] 10 is a diagram illustrating a schematic view of airflow movement in a second airflow passage in a cooling segment according to an embodiment. [Figure 6C] 10 is a view schematically illustrating airflow movement in a third airflow passage in a cooling segment according to an embodiment. [Figure 7] 10 is a diagram illustrating in detail the compressed wrinkles of the third sheet in the cooling segment according to an embodiment. DETAILED DESCRIPTION OF THE INVENTION

[0011] The terms used in the embodiments are generally used and widely used in consideration of the functions of the embodiments, but these may change depending on the intentions of those skilled in the art, legal precedents, the emergence of new technologies, etc. In addition, in certain cases, the applicant may arbitrarily select terms, and in such cases, their meanings will be described in detail in the description of the invention. Therefore, the terms used in the embodiments should be defined based on the meanings of the terms and the overall content of the embodiments, rather than simply by their names.

[0012] Throughout the specification, when a part "includes" a certain element, this does not mean that it excludes other elements and may further include other elements, unless otherwise specified. Furthermore, terms such as "module" and "unit" used in the specification refer to a unit that processes at least one function or operation, and this may be implemented in hardware or software, or a combination of hardware and software.

[0013] As used herein, when a phrase such as "at least one of," precedes an element in an arrangement, it modifies the entire element and not each individual element in the arrangement. For example, the phrase "at least one of a, b, and c" should be interpreted as including a, b, and c, or a and b, a and c, b and c, or a, b, and c.

[0014] In one embodiment, the aerosol generating device is a device that generates aerosol by electrically heating a cigarette contained in an internal space.

[0015] The aerosol generating device comprises a heater, in one embodiment the heater is an electrically resistive heater, for example the heater comprises an electrically conductive track, and when an electric current is passed through the electrically conductive track the heater is heated.

[0016] The heater may include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and may heat the inside or outside of the cigarette depending on the shape of the heating element.

[0017] Cigarettes include tobacco rods and filter rods. Tobacco rods can be made in sheet or strand form, or can be made from shredded tobacco, which is a tobacco sheet. The tobacco rod can also be surrounded by a thermally conductive material, such as, but not limited to, a metal foil, such as aluminum foil.

[0018] The filter rod may also be a cellulose acetate filter. The filter rod may be composed of at least one or more segments. For example, the filter rod may have a first segment that cools the aerosol and a second segment that filters out specific components contained in the aerosol.

[0019] In another embodiment, the aerosol generating device is a device that generates an aerosol using a cartridge containing an aerosol generating substance.

[0020] The aerosol generating device includes a cartridge containing an aerosol-generating material and a body supporting the cartridge. The cartridge is detachably connected to the body, but is not limited thereto. The cartridge may be formed integrally with the body, incorporated therein, or fixed so as not to be detachable by a user. The cartridge is attached to the body with the aerosol-generating material contained therein. However, is not limited thereto, and the aerosol-generating material may be injected into the cartridge while the cartridge is connected to the body.

[0021] The cartridge contains an aerosol-forming material in any one of various states, such as a liquid, solid, gas, or gel. The aerosol-forming material includes a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing substance that includes a volatile tobacco flavor component, or a liquid containing a non-tobacco substance.

[0022] The cartridge is activated by an electrical signal or a wireless signal transmitted from the main body to convert the phase of the aerosol-generating material inside the cartridge into a gas phase, thereby generating an aerosol. The aerosol refers to a gas mixture of vaporized particles generated from the aerosol-generating material and air.

[0023] In yet another embodiment, the aerosol generating device heats a liquid composition to generate an aerosol, and the generated aerosol is delivered to the user through the cigarette, i.e., the aerosol generated from the liquid composition travels along an airflow passage of the aerosol generating device, and the airflow passage is configured to deliver the aerosol to the user through the cigarette.

[0024] In still another embodiment, the aerosol generating device may be a device that generates an aerosol from an aerosol generating material using an ultrasonic vibration method, where the ultrasonic vibration method refers to a method of generating an aerosol by atomizing the aerosol generating material using ultrasonic vibrations generated by a vibrator.

[0025] The aerosol generating device includes a vibrator that generates short-period vibrations to atomize the aerosol generating material. The vibrations generated by the vibrator are ultrasonic vibrations, and the frequency band of the ultrasonic vibrations is, but is not limited to, about 100 kHz to about 3.5 MHz.

[0026] The aerosol generating device further includes a wick that absorbs the aerosol-generating substance, for example, the wick is positioned to surround or contact at least a region of the vibrator.

[0027] When a voltage (e.g., an AC voltage) is applied to the vibrator, heat and / or ultrasonic vibrations are generated from the vibrator, and the heat and / or ultrasonic vibrations generated from the vibrator are transferred to the aerosol-forming substance absorbed in the wick. The aerosol-forming substance absorbed in the wick is converted into a gas phase by the heat and / or ultrasonic vibrations transferred from the vibrator, resulting in the generation of an aerosol.

[0028] For example, the heat generated from the vibrator reduces the viscosity of the aerosol-generating substance absorbed in the core, and the ultrasonic vibrations generated from the vibrator break the reduced viscosity aerosol-generating substance into fine particles, thereby generating an aerosol, but this is not limiting.

[0029] In yet another embodiment, the aerosol generating device is a device that generates an aerosol by heating an aerosol product contained in the aerosol generating device using an induction heating method.

[0030] The aerosol generating device includes a susceptor and a coil. In one embodiment, the coil applies a magnetic field to the susceptor. When power is supplied from the aerosol generating device to the coil, a magnetic field is formed inside the coil. In one embodiment, the susceptor is a magnetic material that generates heat when an external magnetic field is applied. When the susceptor is located inside the coil and a magnetic field is applied, the susceptor generates heat, thereby heating the aerosol product. Alternatively, the susceptor may be located inside the aerosol product.

[0031] In yet another embodiment, the aerosol generating device further comprises a cradle.

[0032] The aerosol generating device may be combined with a separate cradle to form a system. For example, the cradle may charge a battery of the aerosol generating device. Alternatively, the heater may heat the aerosol generating device when the cradle and the aerosol generating device are combined.

[0033] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings so that those skilled in the art can easily implement the embodiments. The embodiments may be implemented in a form that can be implemented in the aerosol generating device of the various embodiments described above, or may be implemented in various different forms, but are not limited to the embodiments described herein.

[0034] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0035] 1 to 3 are diagrams showing an example in which a cigarette is inserted into an aerosol generating device.

[0036] 1, the aerosol generation device 1 includes a battery 11, a control unit 12, and a heater 13. 2 and 3, the aerosol generation device 1 further includes a vaporizer 14. An aerosol product 2 is inserted into the internal space of the aerosol generation device 1.

[0037] The components according to this embodiment are shown in the aerosol generating device 1 shown in Figures 1 to 3. Therefore, it will be understood by those skilled in the art that the aerosol generating device 1 may further include other general-purpose components in addition to the components shown in Figures 1 to 3.

[0038] 2 and 3 show that the aerosol generating device 1 is provided with the heater 13, but the heater 13 may be omitted as necessary.

[0039] 1 shows that the battery 11, the control unit 12, and the heater 13 are arranged in a row. Also, FIG. 2 shows that the battery 11, the control unit 12, the vaporizer 14, and the heater 13 are arranged in a row. Also, FIG. 3 shows that the vaporizer 14 and the heater 13 are arranged in parallel. However, the internal structure of the aerosol generation device 1 is not limited to that shown in FIGS. 1 to 3. In other words, the arrangement of the battery 11, the control unit 12, the heater 13, and the vaporizer 14 may be changed depending on the design of the aerosol generation device 1.

[0040] When the aerosol production product 2 is inserted into the aerosol generation device 1, the aerosol generation device 1 activates the heater 13 and / or vaporizer 14 to generate an aerosol. The aerosol generated by the heater 13 and / or vaporizer 14 passes through the aerosol production product 2 and is delivered to the user.

[0041] If necessary, the aerosol generating device 1 heats the heater 13 even when the aerosol product 2 is not inserted into the aerosol generating device 1 .

[0042] The battery 11 supplies power used when the aerosol generation device 1 operates. For example, the battery 11 supplies power to heat the heater 13 or the vaporizer 14, and supplies power necessary for the operation of the control unit 12. The battery 11 also supplies power necessary for the operation of a display, a sensor, a motor, and the like provided in the aerosol generation device 1.

[0043] The control unit 12 controls the overall operation of the aerosol generation device 1. Specifically, the control unit 12 controls the operation of not only the battery 11, the heater 13, and the vaporizer 14, but also other components provided in the aerosol generation device 1. The control unit 12 can also check the state of each component of the aerosol generation device 1 to determine whether the aerosol generation device 1 is in an operable state.

[0044] The control unit 12 includes at least one processor. The processor may be implemented as an array of multiple logic gates, or as a combination of a general-purpose microprocessor and a memory storing a program executed by the microprocessor. Those skilled in the art will understand that the processor may also be implemented in other forms of hardware.

[0045] The heater 13 is heated by power supplied from the battery 11. For example, when a cigarette is inserted into the aerosol generation device 1, the heater 13 is located outside the cigarette. Thus, the heated heater 13 increases the temperature of the aerosol-generating material inside the cigarette.

[0046] The heater 13 may be an electric resistance heater. For example, the heater 13 has an electric conductive track, and an electric current flows through the electric conductive track to heat the heater 13. However, the heater 13 is not limited to the above example, and any heater that can be heated to a desired temperature can be used without any restrictions. Here, the desired temperature may be already set in the aerosol generation device 1, or may be set to the desired temperature by the user.

[0047] Meanwhile, as another example, the heater 13 may be an induction heater. Specifically, the heater 13 includes an electrically conductive coil for heating the cigarette by induction heating, and the cigarette includes a susceptor heated by the induction heater.

[0048] For example, the heater 13 may include a tube-type heating element, a plate-type heating element, a needle-type heating element, or a rod-type heating element, and may heat the inside or outside of the aerosol production article 2 depending on the shape of the heating element.

[0049] Furthermore, a plurality of heaters 13 may be arranged in the aerosol generation device 1. In this case, the plurality of heaters 13 may be arranged so as to be inserted inside the aerosol product 2, or may be arranged outside the aerosol product 2. Furthermore, some of the plurality of heaters 13 may be arranged so as to be inserted inside the aerosol product 2, and the rest may be arranged outside the aerosol product 2. Furthermore, the shape of the heater 13 is not limited to the shapes shown in FIGS. 1 to 3, and various shapes may be produced.

[0050] The vaporizer 14 heats the liquid composition to generate an aerosol, which is then transmitted to the user through the aerosol product 2. In other words, the aerosol generated by the vaporizer 14 travels along an airflow passage in the aerosol generating device 1, which is configured to transmit the aerosol generated by the vaporizer 14 through the cigarette to the user.

[0051] For example, the vaporizer 14 may include, but is not limited to, a liquid storage unit, a liquid transfer means, and a heating element. For example, the liquid storage unit, the liquid transfer means, and the heating element may be provided in the aerosol generation device 1 as independent modules.

[0052] The liquid storage unit stores a liquid composition. For example, the liquid composition may be a liquid containing a tobacco-containing substance including a volatile tobacco flavor component, or a liquid containing a non-tobacco substance. The liquid storage unit may be configured to be detachable from the vaporizer 14, or may be configured as an integral part of the vaporizer 14.

[0053] For example, the liquid composition may contain water, solvent, ethanol, plant extract, fragrance, flavoring, or vitamin mixture. Flavorings include, but are not limited to, menthol, peppermint, spearmint oil, and various fruit fragrance components. Flavorings include ingredients that provide the user with a variety of flavors or tastes. The vitamin mixture may include, but is not limited to, a mixture of at least one of vitamin A, vitamin B, vitamin C, and vitamin E. The liquid composition may also contain an aerosol-forming agent, such as glycerin and propylene glycol.

[0054] The liquid transfer means transfers the liquid composition in the liquid storage portion to the heating element, and may be, for example, but not limited to, a wick such as cotton fiber, ceramic fiber, glass fiber, or porous ceramic.

[0055] The heating element is an element for heating the liquid composition transferred by the liquid transfer means. For example, the heating element may be, but is not limited to, a metal hot wire, a metal hot plate, a ceramic heater, or the like. The heating element may also be composed of a conductive filament such as a nichrome wire, and may be arranged in a wound structure around the liquid transfer means. The heating element is heated by supplying electric current and transfers heat to the liquid composition in contact with the heating element, thereby heating the liquid composition. As a result, an aerosol is generated.

[0056] For example, the vaporizer 14 may be called, but is not limited to, a cartomizer or an atomizer.

[0057] Meanwhile, the aerosol generation device 1 may further include general-purpose components in addition to the battery 11, the control unit 12, the heater 13, and the vaporizer 14. For example, the aerosol generation device 1 includes a display capable of outputting visual information and / or a motor for outputting tactile information. The aerosol generation device 1 also includes at least one sensor (such as a puff detection sensor, a temperature detection sensor, or a cigarette insertion detection sensor). The aerosol generation device 1 is also constructed so that outside air can flow in or internal gas can flow out even when the aerosol product 2 is inserted.

[0058] 1 to 3, the aerosol generation device 1 may form a system together with a separate cradle. For example, the cradle is used to charge the battery 11 of the aerosol generation device 1. Alternatively, the heater 13 may be heated while the cradle and the aerosol generation device 1 are coupled together.

[0059] The aerosol-producing product 2 is similar to a typical combustion-type cigarette. For example, the aerosol-producing product 2 is divided into a first portion containing an aerosol-generating material and a second portion containing a filter or the like. Alternatively, the second portion of the aerosol-producing product 2 may also contain an aerosol-generating material. For example, the aerosol-generating material in the form of granules or capsules may be inserted into the second portion.

[0060] The entire first part is inserted into the aerosol generation device 1, and the second part is exposed to the outside. Alternatively, only a part of the first part, or the entire first part and a part of the second part, may be inserted into the aerosol generation device 1. A user inhales the aerosol while holding the second part in their mouth. At this time, the aerosol is generated by outside air passing through the first part, and the generated aerosol passes through the second part and is delivered to the user's mouth.

[0061] As one example, outside air flows in through at least one air passage formed in the aerosol generation device 1. For example, the opening and / or closing of the air passage formed in the aerosol generation device 1 and / or the size of the air passage can be adjusted by the user. This allows the user to adjust the amount of atomization, smoking sensation, etc. As another example, outside air can flow into the aerosol product 2 through at least one hole formed in the surface of the aerosol product 2.

[0062] An example of an aerosol product will now be described with reference to FIG.

[0063] 4A and 4B are cross-sectional views showing an example of an aerosol product 2. As an example, the aerosol product 2 may be a cigarette.

[0064] 4A, the aerosol product 2 includes a tobacco rod 210, a cooling segment 220, and a mouthpiece 230. Specifically, the aerosol product 2 includes a tobacco rod 210 containing a tobacco material, a cooling segment 220 located downstream of the tobacco rod, and a mouthpiece 230 located downstream of the cooling segment 220.

[0065] For example, the tobacco rod 210 includes a tobacco material and further includes a humectant and / or an aerosol-forming material. The aerosol-forming material may be included in a separate portion from the tobacco material. The cooling segment 220 cools the airflow generated by the tobacco rod 210. The mouthpiece 230 includes a filter material.

[0066] 4A, the tobacco rod 210, the cooling segment 220, and the mouthpiece 230 are sequentially aligned based on the longitudinal direction of the aerosol product 2. Here, the longitudinal direction of the aerosol product 2 is the direction in which the length of the aerosol product 2 extends. For example, the longitudinal direction of the aerosol product 2 is the direction from the tobacco rod 210 to the mouthpiece 230. As a result, the aerosol generated in the tobacco rod 210 can form an airflow as it passes through the tobacco rod 210, the cooling segment 220, and the mouthpiece 230 sequentially, and the user inhales the aerosol through the mouthpiece 230.

[0067] 4B, the aerosol product 2 includes a tobacco rod 210, a cooling segment 220, a mouthpiece 230, and a support segment 240. In FIG. 4B, the support segment 240 is shown as being located between the tobacco rod 210 and the cooling segment 220, but it may also be located between the cooling segment 220 and the mouthpiece 230.

[0068] An example of the aerosol product 2 is a cigarette, but is not limited to this, having a diameter within the range of 5 mm to 9 mm and a length of approximately 48 mm. The cigarette is wrapped in at least one wrapper. The wrapper has at least one hole formed therein through which external air can enter or internal gas can escape. In one example, the cigarette is wrapped in a single wrapper. In another example, the cigarette may be wrapped in two or more overlapping wrappers.

[0069] The tobacco rod 210 of the aerosol product 2 according to one embodiment includes an aerosol-forming material. For example, the aerosol-forming material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol, but is not limited to these. The tobacco rod 210 may also include other additives, such as flavoring agents, humectants, and / or organic acids. A flavoring liquid, such as menthol or a humectant, may also be added to the tobacco rod 210 by being sprayed onto the tobacco rod 210.

[0070] The tobacco rod 210 may be made in a variety of ways. For example, the tobacco rod 210 may be made from a sheet or a strand. Alternatively, the tobacco rod 210 may be made from shredded tobacco, which is a tobacco sheet. Alternatively, the tobacco rod 210 may be surrounded by a thermally conductive material. For example, the thermally conductive material may be a metal foil, such as aluminum foil, but is not limited to this. For example, the thermally conductive material surrounding the tobacco rod 210 evenly distributes heat transferred to the tobacco rod 210, improving the thermal conductivity of the tobacco rod and thereby improving the tobacco taste.

[0071] In addition, the thermally conductive material surrounding the tobacco rod 210 functions as a susceptor that is heated by the induction heater. Although not shown in the drawings, the tobacco rod 210 may further include a susceptor in addition to the thermally conductive material surrounding the exterior.

[0072] In one embodiment, the cooling segment 220 cools the airflow passing through the tobacco rod 210 or the tobacco rod 210 and the support segment 240.

[0073] Mouthpiece 230 according to one embodiment includes a filter element. For example, mouthpiece 230 may be a cellulose acetate filter. However, the shape of mouthpiece 230 is not limited. For example, mouthpiece 230 may be a cylindrical rod, or a tubular rod with a hollow interior. Mouthpiece 230 may also be a recessed rod. If mouthpiece 230 is composed of multiple segments, at least one of the multiple segments may be manufactured in a different shape.

[0074] The mouthpiece 230 may be manufactured to emit a flavor. For example, a liquid scent may be sprayed into the mouthpiece 230, or a separate fiber coated with the liquid scent may be inserted into the mouthpiece 230.

[0075] The aerosol product 2 includes a wrapper that surrounds at least a portion of the tobacco rod 210 or the mouthpiece 230. The aerosol product 2 also includes a wrapper that surrounds the entire tobacco rod 210 or the mouthpiece 230. The wrapper may be a single wrapper, or may be a combination of multiple wrappers. The outermost wrapper of the aerosol product 2 encases the tobacco rod 210, the cooling segment 220, and the mouthpiece 230.

[0076] Figure 5A is a side view of a cooling segment for an aerosol product according to one embodiment, and Figure 5B is a cross-sectional view of Figure 5A.

[0077] Referring to Figures 5A and 5B, the cooling segment 220 includes a first sheet 221 that forms at least a portion of the outer surface of the cooling segment 220, a second sheet 222 that forms a passage inside the cooling segment 220 through which the aerosol moves along the longitudinal direction of the aerosol product 2, and a third sheet 223 that is pressed between the first sheet 221 and the second sheet 222.

[0078] That is, the cooling segment 220 includes a first sheet 221 on the outside, a second sheet 222 on the inside, and a third sheet 223 pressed between the first sheet 221 and the second sheet 222.

[0079] In one embodiment of the cooling segment 220, the first sheet 221 has a thickness of 120 to 160 g / m 2 and a thickness of 180 to 200 μm, and the second sheet 222 is 50 to 70 g / m 2 and a thickness of 70 to 90 μm.

[0080] The first sheet 221 has a relatively high basis weight compared to the other sheets, thereby providing rigidity to the cooling segment 220 and the aerosol product 2 .

[0081] In one embodiment of the cooling segment 220, the third sheet 223 is compressed to form creases, the compressed creases having a plurality of peaks and valleys.

[0082] The first sheet 221 surrounds the plurality of peaks of the third sheet 223, and the first sheet 221 wraps the outer surface of the third sheet 223 to form the outer surface of the cooling segment 220. The plurality of peaks of the third sheet 223 contact the first sheet 221. The first sheet 221 has a cylindrical shape that forms the outer surface of the cooling segment 220. For example, referring to FIG. 5A, the first sheet 221 has a cylindrical shape, but is not limited thereto.

[0083] The second sheet 222 may surround the valleys of the third sheet 223 and wrap the inner surface of the third sheet 223, and the second sheet 222 may have a bore therein. The second sheet 222 may be cylindrical, forming a hollow space within the cooling segment 220. For example, referring to FIG. 5A, the second sheet 222 may be cylindrical, but is not limited thereto. The second sheet 222 may have a cylindrical shape with a smaller diameter than the first sheet 221, and the third sheet 223 may be positioned between the first sheet 221 and the second sheet 222, by pressing.

[0084] The first sheet 221 wraps the outer surface of the third sheet 223, and the second sheet 222 wraps the inner surface of the third sheet 223, so that the cooling segment 220 includes a triple-layered cardboard tube and forms three types of airflow passages 220a, 220b, and 220c. That is, the airflow passages are a first airflow passage 220a formed between the first sheet 221 and the third sheet 223, a second airflow passage 220b formed between the second sheet 222 and the third sheet 223, and a third airflow passage 220c formed in the internal space of the second sheet 222. The airflow passages cool the aerosol passing through the cooling segment 220.

[0085] The third sheet 223 has a large surface area due to being compressed, and a number of first airflow passages 220a are formed between the first sheet 221 and the third sheet 223, and a number of second airflow passages 220b are also formed between the second sheet 222 and the third sheet 223. As described above, the multiple airflow passages are first airflow passages 220a formed by the first sheet 221 surrounding the outer surfaces of the creases in the compressed third sheet 223, or second airflow passages 220b formed by the second sheet 222 surrounding the inner surfaces of the creases.

[0086] According to one embodiment, the third sheet 223 includes polylactic acid (PLA). For example, the third sheet 223 is a polylactic acid film paper or a polylactic acid coated paper. By including polylactic acid in the third sheet 223, aerosol cooling can be more efficiently performed over a large surface area.

[0087] When the third sheet 223 contains polylactic acid, the thickness is 120 to 140 g / m 2 and a thickness of 150 to 190 μm.

[0088] According to another embodiment, the third sheet 223 includes hydrophilic paper. The hydrophilic paper is surface-modified to enhance moisture absorption. The hydrophilic paper is uncoated paper that does not undergo a separate coating process. The hydrophilic paper is a pressure-sensitive wrapping paper.

[0089] According to one embodiment, hydrophilic paper is produced by sequentially carrying out a pulp production process in which logs are cut, crushed, digested, and washed, a raw material production process in which water is mixed with the pulp and then auxiliary materials and chemicals are added and mixed, and a post-processing process in which wet paper is produced from the raw materials, and then the paper is pressurized, dehydrated, and dried to produce a finished product. In other words, hydrophilic paper according to one embodiment does not require a separate coating process, i.e., a coating process, on paper produced in a paper machine using a known method.

[0090] In one embodiment, the hydrophilic paper has a density of 40 to 80 g / m 2 Hydrophilic paper is made from raw paper without any additional coating treatment and has a relatively low basis weight and thin thickness.

[0091] Alternatively, the hydrophilic paper according to one embodiment has a contact angle of 25° or less. The contact angle is the angle between the liquid and gas interface and the liquid and solid interface when a droplet of water is present on a solid, and can be said to indicate the degree of wettability of the solid surface. Generally, if the contact angle of water on a solid surface is greater than 90°, the solid surface is considered to be hydrophobic, and if it is less than 90°, the solid surface is considered to be hydrophobic.

[0092] Alternatively, the hydrophilic paper according to one embodiment has a density of 40 to 80 g / m 2 At the same time, the contact angle is 25° or less, demonstrating high water control.

[0093] The third sheet 223 contains hydrophilic paper, and thus can effectively absorb the moisture in the mainstream smoke, thereby effectively cooling the aerosol.

[0094] In another embodiment, the surface of the third sheet 223 that forms the first airflow passage 220a may be coated to provide relatively high rigidity, while the surface that forms the second airflow passage 220b may be uncoated to enhance moisture absorption. The coating may include a plastic material, preferably polylactic acid.

[0095] 5B, it can be seen that a number of first airflow passages 220a are formed between the first sheet 221 and the plurality of crimped ridges of the third sheet 223, and a number of second airflow passages 220b are formed between the second sheet 222 and the plurality of crimped valleys of the third sheet 223. It can also be seen that a third airflow passage 220c is formed within the second sheet 222. The airflow passages also refer to the paths through which aerosol generated from the tobacco rod 210 moves downstream when a user inhales through the mouthpiece 230.

[0096] More specifically, FIG. 6A is a diagram schematically illustrating airflow movement in a first airflow passage in a cooling segment according to an embodiment.

[0097] 6A is an enlarged view of a cardboard tube of a cooling segment 220 according to an embodiment. FIG. 6A is a view schematically illustrating the movement of airflow between a first sheet 221 and a third sheet 223. In FIG. 6A, the first sheet 221 and the second sheet 222 are omitted to show the first airflow passage 220a formed between the first sheet 221 and the third sheet 223 in more detail. Referring to FIG. 6A, the movement of airflow through a plurality of first airflow passages 220a can improve the cooling effect of the aerosol.

[0098] The first sheet 221 forms the outer surface of the first airflow passage 220a by surrounding the outer surface of the third sheet 223. The first sheet 221 is porous. Outside air passes through the voids in the first sheet 221, further improving the cooling effect of the aerosol.

[0099] 6B is an enlarged view of the cardboard tube of the cooling segment 220 according to an embodiment. FIG. 6B is a schematic view illustrating the movement of airflow between the second sheet 222 and the third sheet 223. In FIG. 6B, the first sheet 221 and the second sheet 222 are omitted to show the second airflow passage 220b formed between the second sheet 222 and the third sheet 223 in more detail. Referring to FIG. 6B, the movement of airflow through the multiple second airflow passages 220b can improve the cooling effect of the aerosol. The second sheet 222 surrounds the inner surface of the third sheet 223 to form the outer surface of the second airflow passage 220b.

[0100] 6C is a schematic diagram illustrating airflow through a third airflow passage in a cooling segment according to one embodiment. Airflow passes through a third airflow passage 220c formed inside the second sheet 222. The second sheet 222 wraps the crimped third sheet 223, smoothing the shape of the internal airflow passage and facilitating the transfer of aerosol. Furthermore, the wrapping of the second sheet 222 improves support for the aerosol product 2, facilitating the cutting process.

[0101] FIG. 7 is a diagram for explaining in detail the compressed wrinkles of the third sheet in the cooling segment according to one embodiment.

[0102] 7 is an enlarged view of the cardboard tube of the cooling segment 220. As described above, the third sheet 223 is pressed between the first sheet 221 and the second sheet 222 to form wrinkles. The pressed wrinkles of the third sheet 223 have multiple peaks and valleys.

[0103] The multiple peaks contact the first sheet 221. At this time, the distance d between the peaks is 2 to 3 mm. Also, the multiple valleys of the compressed wrinkles of the third sheet 223 contact the second sheet 222. At this time, the distance h between the valleys is 1 to 3 mm.

[0104] In one example, when the third sheet 223 contains polylactic acid, the distance h between the valleys is 2 to 3 mm.

[0105] In another embodiment, when the third sheet 223 includes hydrophilic paper, the distance h between the valleys is 1 to 1.5 mm. When the third sheet 223 includes hydrophilic paper, the distance h between the valleys is relatively narrow due to the low basis weight. By forming the distance h between the valleys narrow, the moisture removal effect is further improved.

[0106] 7, the wrinkles are shown to have a regular shape, but they may be formed irregularly, i.e., the distance d between the peaks or the distance h between the valleys is not constant but has various values.

[0107] Example: Measurement of the moisture content and temperature of mainstream smoke depending on the type of paper tube in the cooling segment

[0108] Cigarettes were manufactured using different types of paper tubes for the cooling segment, and the moisture content and temperature of the mainstream smoke were measured.

[0109] Example 1 has a hollow inside, and the first sheet is 140 g / m 2 and the second sheet has a basis weight of 60 g / m 2 and the third sheet has a basis weight of 120 g / m 2 The film is made of polylactic acid (PLA) film paper with a basis weight of 10 ...

[0110] Example 2 differs from Example 1 only in the third sheet, which is 40 g / m 2 The cooling segment is made of hydrophilic paper having a basis weight of 1000g, and has a paper tube with a third sheet pressed between the first and second sheets.

[0111] Comparative Example 1 used a commercial cooling segment containing tubular cellulose acetate with a hollow inside, and Comparative Example 2 used a commercial cooling segment containing a hollow inside and three sheets (internal 60 g / m2 , middle 140g / m 2 , external 140g / m 2 A cooling segment was used, which had a paper tube made of three polymerized papers to which a sheet of paper was glued.

[0112] [Table 1]

[0113] The experimental results show that the paper tube structure of the examples provides excellent cooling and moisture removal effects overall. In particular, Example 1, which uses PLA film as the third sheet, provides the best cooling effect on mainstream smoke. Example 2, which uses hydrophilic paper as the third sheet, not only provides an excellent cooling effect on mainstream smoke, but also removes moisture very effectively.

[0114] The above description of the embodiments is merely illustrative, and those skilled in the art will understand that various modifications and equivalent embodiments are possible. Therefore, the true scope of protection of the invention should be determined by the appended claims, and all differences within the scope equivalent to the contents of the claims should be construed as being included in the scope of protection defined by the claims.

Claims

1. In the aerosol product, a tobacco rod containing a tobacco material; a cooling segment located downstream of said tobacco rod; a mouthpiece located downstream of the cooling segment; The aerosol product article, wherein the cooling segment includes a first sheet forming at least a portion of the outer surface of the cooling segment, a second sheet forming a passage within the cooling segment through which the aerosol travels along the longitudinal direction of the aerosol product article, and a third sheet pressed between the first sheet and the second sheet.

2. The first sheet has a density of 120 to 160 g / m ２ a basis weight of 180 to 200 μm, and a thickness of 180 to 200 μm; The second sheet has a density of 50 to 70 g / m ２ 10. The aerosol product article of claim 1, having a basis weight of 1000 sq ft and a thickness of 70 to 90 μm.

3. The third sheet contains polylactic acid and has a density of 120 to 140 g / m ２ 10. The aerosol product article of claim 1, having a basis weight of 100 to 190 microns and a thickness of 150 to 190 microns.

4. 10. The aerosol product article of claim 1, wherein the third sheet comprises hydrophilic paper.

5. The hydrophilic paper has a density of 40 to 80 g / m ２ 5. The aerosol product article of claim 4, having a basis weight of 1000 psi and a thickness of 60 to 80 μm.

6. 5. The aerosol product of claim 4, wherein the hydrophilic paper has a contact angle of 25 degrees or less.

7. the compressed corrugations of the third sheet have a plurality of peaks and a plurality of valleys; 2. The aerosol product of claim 1, wherein the plurality of peaks contact the first sheet and the peaks are spaced 2 to 3 mm apart.

8. the compressed corrugations of the third sheet have a plurality of peaks and a plurality of valleys; 2. The aerosol product of claim 1, wherein the plurality of valleys contact the second sheet and the spacing between the valleys is between 1 and 3 mm.

9. 10. The aerosol product article of claim 1, further comprising a support segment located at a downstream end of the tobacco rod.

10. 10. The aerosol product of claim 1, further comprising an outer wrapper encasing the tobacco rod, the cooling segment, and the mouthpiece.

11. In the cooling segment included in the aerosol product, A cooling segment for an aerosol product, the cooling segment including a first sheet forming at least a portion of the outer surface of the cooling segment, a second sheet forming a passage within the cooling segment through which an aerosol travels along the longitudinal direction of the aerosol product, and a third sheet pressed between the first sheet and the second sheet.

12. The first sheet has a density of 120 to 160 g / m ２ a basis weight of 180 to 200 μm, and a thickness of 180 to 200 μm; The second sheet has a density of 50 to 70 g / m ２ 12. A cooling segment for an aerosol product article according to claim 11, having a basis weight of 1000 psi and a thickness of 70 to 90 μm.

13. The third sheet contains polylactic acid and has a density of 120 to 140 g / m ２ 12. A cooling segment for an aerosol product article according to claim 11, having a basis weight of 1000 psi and a thickness of 150 to 190 psi.

14. 12. The cooling segment for an aerosol product article of claim 11, wherein the third sheet comprises hydrophilic paper.

15. The hydrophilic paper has a density of 40 to 80 g / m ２ 15. A cooling segment for an aerosol product article according to claim 14, having a basis weight of 1000 psi and a thickness of 60 to 80 μm.

16. 15. The cooling segment for an aerosol product article of claim 14, wherein the hydrophilic paper has a contact angle of 25 degrees or less.

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