COMPOSITIONS FOR NON-HEATING AEROSOL-GENERATING SYSTEMS COMPRISING COOLANT AND HAVING IMPROVED Menthol

Abstract

According to one embodiment of the present invention, provided are a composition for an aerosol-generating system comprising a humectant comprising propylene glycol (PG) and plant glycerol (VG), WS-3, and menthol, a cartridge comprising the same, and an aerosol-generating system.

Description

TECHNICAL FIELD

[0001] The following embodiments relate to a composition for a non-heated aerosol generating system including a coolant and having improved menthol migration amount, and a cartridge including the same and an aerosol generating system including the cartridge. BACKGROUND

[0002] Recently, there is an increasing demand for a conventional cigarette substitute product. For example, there is an increasing demand for a device that generates an aerosol by electrically heating a cigarette stick, such as a cigarette-type electronic cigarette. Accordingly, research into an electrically heated aerosol generating device and a cigarette stick (or an aerosol generating article) therefor is currently being conducted.

[0003] In addition, research into a non-heated aerosol generating device is also being conducted in addition to the electrically heated aerosol generating device. In this case, an aerosol generating article including pH-treated particles generating free nicotine is used.

[0004] Meanwhile, although there are various methods in the related art that aim to enhance the cooling sensation of menthol in a liquid electronic cigarette, there is no separate research into a composition including a coolant that is suitable for a non-heated aerosol generating device and that can achieve a high menthol migration amount. In addition, for a non-heated aerosol generating system, unlike the existing heated aerosol generating device, the sensory characteristics of menthol should be achieved without being affected by temperature, and thus the amount of the coolant added can be limited, and there is a problem in that the solubility with a humectant or the like needs to be considered. SUMMARY

[0005] Problems to be Solved by the Invention The present disclosure is directed to solving the above and other problems.

[0006] An object of one embodiment of the present disclosure is to provide a composition for an aerosol generating system having improved menthol migration amount, which improves the problem of a low menthol migration amount in a non-heated electronic cigarette, and thus provides a user with a cooling sensation and a smoking satisfaction.

[0007] In addition, an object of another embodiment of the present disclosure is to provide a cartridge including the composition for an aerosol generating system and an aerosol generating system including the same.

[0008] However, the technical problem is not limited to the above-described technical problem, and other technical problems can exist.

[0009] Means for Solving the Problem According to an embodiment of the present application, there is provided a composition for an aerosol-generating system, including: a humectant including propylene glycol (PG) and vegetable glycerin (VG); WS-3 (N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide); and menthol.

[0010] According to another embodiment of the present application, there is provided a cartridge for an aerosol-generating system including a liquid composition, wherein the liquid composition includes: a humectant including propylene glycol (PG) and vegetable glycerin (VG); WS-3 (N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide); and menthol.

[0011] According to still another embodiment of the present application, there is provided an aerosol-generating system including: an aerosol-generating article including a medium portion and one or more filter rod portions; and an aerosol-generating device including a battery, a control portion, and a vaporizer, wherein the medium portion includes one or more of reconstituted tobacco, tobacco shreds, and tobacco particles, and a liquid composition is sprayed onto a surface of one or more of the reconstituted tobacco, the tobacco shreds, and the tobacco particles, wherein the liquid composition includes: a humectant including propylene glycol (PG) and vegetable glycerin (VG); WS-3 (N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide); and menthol.

[0012] Effects of Invention The composition for a non-heating type aerosol-generating system according to an embodiment of the present application can solve the problem of low migration amount of menthol in a non-heating type electronic cigarette, thereby improving the problem of insufficient cooling sensation of menthol, and further providing satisfaction of smoking to a smoker. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 FIG. 1 is a drawing schematically showing a structure of an aerosol-generating article according to an embodiment.

[0014] Figure 2 FIG. 2 is a drawing schematically showing an aerosol-generating system according to an embodiment, in which an aerosol-generating device is combined with an aerosol-generating article. DETAILED DESCRIPTION

[0015] Hereinafter, embodiments will 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 the present application is not limited to the embodiments below. All modifications made to the embodiments, and equivalents and / or substitutes thereof, are within the scope of the present application.

[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 expression has 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, components, 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, components, or combinations thereof.

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

[0018] In the description with reference to the accompanying drawings, the same reference numerals are used for the same constituent elements, regardless of the reference numerals, and repeated descriptions thereof are omitted. In the description of embodiments, when it is determined that a detailed description of relevant prior art would cause unnecessary confusion to this disclosure, such detailed description is omitted.

[0019] Furthermore, when describing the constituent elements of the embodiments, terms such as first, second, A, B, (a), and (b) may be used. These terms are only used to distinguish one constituent element from other constituent elements and are not used to limit the nature, order, or sequence of the constituent elements. When describing a constituent element as being "connected," "bonded," or "attached" to another constituent element, it should be understood that one constituent element can be directly connected to or attached to another constituent element, and intermediate components can also be "connected," "bonded," or "attached" to these constituent elements.

[0020] When a constituent element has a common function with a constituent element included in one embodiment, the same name is used in other embodiments for description. Unless otherwise stated, the description in one embodiment is equally applicable to other embodiments, and specific details may be omitted where necessary for repetition.

[0021] In the following embodiments, "humectant" may refer to a substance that can promote the formation of visible smoke and / or aerosol. Humectants may include, but are not limited to, glycerin (GLY), propylene glycol (PG), ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, and oleyl alcohol. In the art, humectant may be used interchangeably with the terms aerosol forming agent, wetting agent, etc.

[0022] In the following embodiments, "aerosol forming matrix" may refer to a material capable of forming aerosols. Aerosols may include volatile compounds. The aerosol forming matrix may be solid or liquid. For example, a solid aerosol forming matrix may include solid materials based on tobacco raw materials, such as tobacco shreds, tobacco pellets, or reconstituted tobacco. Depending on its manufacturing method, reconstituted tobacco may be classified into pulp-like reconstituted tobacco sheets and paper-like reconstituted tobacco sheets. A liquid aerosol forming matrix may include a liquid composition based on nicotine, tobacco extracts, and / or various flavoring agents. However, the scope of this disclosure is not limited to these examples.

[0023] In the following embodiments, "aerosol-generating article" refers to an article containing an aerosol-forming matrix (i.e., a medium), and may also refer to an article through which aerosols pass and migrate nicotine contained in the medium. Cigarettes are a typical example of aerosol-generating articles, but the scope of this disclosure is not limited thereto.

[0024] In the following embodiments, "aerosol generating device" may refer to a device that uses an aerosol forming matrix to generate aerosols that can be directly inhaled into the user's lungs through the user's mouth.

[0025] In the following embodiments, "upstream" or "upstream direction" refers to the direction away from the user's (smoker's) mouth; "downstream" or "downstream direction" refers to the direction closer to the user's mouth. Upstream and downstream are used to describe the relative positions of the various parts of the aerosol-generating article.

[0026] In the following embodiments, "puff" refers to the user's inhalation, which means the user inhales into the user's mouth, nasal cavity, or lungs through the mouth or nose.

[0027] According to an embodiment of the present invention, a composition for an aerosol generation system is provided, comprising: a humectant including propylene glycol (PG) and vegetable glycerin (VG); WS-3 (N-ethyl-5-methyl-2-(1-methylethyl)cyclohexanecarboxamide); and menthol.

[0028] WS-3 exhibits good cooling duration and is a coolant that can enhance the cooling sensation of menthol. In particular, in the presence of humectants containing PG and VG, the migration of menthol can be increased significantly when a coolant such as WS-3 is added compared to the case where menthol is added alone. These results will be illustrated in detail in the examples below.

[0029] In addition, in this case, the weight ratio of the moisturizer containing PG and VG can be 8:2 to 2:8, preferably 6:4 to 4:6, and more preferably 5:5.

[0030] When the weight ratio of PG to VG in a moisturizer containing PG and glycerin VG exceeds the above range, the solubility of WS-3 in the moisturizer may decrease.

[0031] In particular, the WS-3 has low solubility in humectants containing PG and VG, so, for example, when the weight ratio of PG to VG is 5:5, the amount of WS-3 added (based on the total weight of the composition) can be up to 1.5 wt%.

[0032] Therefore, it can be seen that there are limitations on the amount added for non-heated or low-temperature heated aerosol generating devices (non-heated electronic cigarettes). Therefore, to more effectively migrate menthol, it is preferable to use menthol together with the humectant and WS-3.

[0033] As shown in the examples below, the migration of menthol is significantly superior when including a humectant containing PG and VG, WS-3, and menthol, compared to cases that include only a humectant and WS-3 or only a humectant and menthol.

[0034] In this case, the menthol content that may be included in the composition may be 10 to 15 wt%, preferably 11 to 14 wt%, and more preferably 12 to 13 wt%. When the menthol content is above the lower limit mentioned above, a higher menthol migration can be achieved compared to when the menthol content is below the lower limit mentioned above. However, when the menthol content exceeds the upper limit mentioned above, menthol precipitation may occur.

[0035] Furthermore, according to one embodiment of the present invention, the liquid composition may further include a humectant comprising propylene glycol (PG) and vegetable glycerin (VG); WS-3 (N-ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide); and menthol. WS-23 is also a coolant, capable of producing a cooling sensation similar to WS-3. The inventors have discovered that by using WS-3, WS-23, and menthol in combination, the migration of menthol can be significantly increased without heating the liquid composition.

[0036] Specifically, due to factors such as solubility, the content of WS-23 can be greater than 0 wt% and less than 5 wt% (based on the total weight of the composition), preferably 1 wt% to 3 wt%.

[0037] In this way, the composition according to an embodiment of the present invention can most effectively solve the problem of insufficient menthol cooling sensation in non-heated aerosol generation systems.

[0038] In particular, the method of adding WS-23 and menthol can be regarded as an ideal solution to the problem of insufficient cooling sensation because it can make up for the problem of limited addition amount caused by the low solubility of WS-3 when only WS-3 is added.

[0039] in addition, Figure 1 The accompanying drawing schematically illustrates the structure of an aerosol-generating article according to one embodiment.

[0040] Reference Figure 1 According to one embodiment, the aerosol generating article 12 may include a medium portion 122, a filter rod portion (including a first filter rod portion 121 and a second filter rod portion 123) and a packaging paper 125.

[0041] The composition according to one embodiment of the present invention includes a humectant comprising propylene glycol (PG) and vegetable glycerin (VG) in a certain proportion, and is therefore primarily in liquid form. Accordingly, when manufacturing an aerosol-generating article, the liquid composition may be included in a medium portion or a filter rod portion, and when the liquid composition is included in the medium portion, the composition may be sprayed onto one or more surfaces of reconstituted tobacco, tobacco shreds, and tobacco particles located in the medium portion.

[0042] Furthermore, when the liquid composition is included in the filter rod portion, it can be sprayed onto the filter paper bundle using a method similar to adding a fragrance solution to the filter rod, such as a transfer jet nozzle system (TJNS).

[0043] In one embodiment, the aerosol generating article 12 can be packaged using at least one wrapping paper 125. The wrapping paper may have at least one hole through which external air is introduced or internal gas is exhausted to the outside. The wrapping paper 125 may comprise a material with high thermal conductivity.

[0044] For example, the first filter rod section 121 can be packaged with first packaging paper 1251, the medium section 122 can be packaged with second packaging paper 1252, and the second filter rod section 123 can be packaged with third packaging paper 1253. In addition, the entire aerosol generating article 12 can be packaged again with fourth packaging paper 1255.

[0045] In one embodiment, the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 can be made of porous cigarette paper. For example, the porosity of each of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 can be 35000 Cu, but is not limited thereto. Furthermore, the thickness of each of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 can be in the range of 70 μm to 80 μm. Additionally, the basis weight of each of the first wrapping paper 1251, the second wrapping paper 1252, and the third wrapping paper 1253 can be 20 g / m³. 2 Up to 25g / m 2 Within the range.

[0046] For example, the second packaging paper 1252 may include an aluminum component. For example, the second packaging paper 1252 may be a combination of ordinary filter paper and metal foil (e.g., aluminum foil). Furthermore, the second packaging paper 1252 may be made of aseptic paper (MFW).

[0047] In one embodiment, the third packaging paper 1253 can be made of polylactic acid (PLA) laminated paper. PLA laminated paper can refer to a three-layer paper comprising a paper layer, a PLA layer, and another paper layer. For example, the thickness of the third packaging paper 1253 can be in the range of 100 μm to 120 μm. Furthermore, the basis weight of the third packaging paper 1253 can be 80 g / m³. 2 Up to 100g / m 2 Within the range.

[0048] In one embodiment, the fourth wrapping paper 1254 can be made of aseptic paper (MFW). For example, the basis weight of the fourth wrapping paper 1254 can be 57 g / m³. 2 Up to 63g / m 2 Within a certain range. Furthermore, the thickness of the fourth packaging paper 1254 can range from 64 μm to 70 μm.

[0049] In one embodiment, the first filter rod portion 121 may be composed of a cellulose acetate filter rod. Alternatively, the first filter rod portion 121 may be composed of a paper filter rod or a porous molded part, etc. For example, the length of the first filter rod portion 121 may be from 4 mm to 15 mm, but is not limited thereto. Furthermore, the first filter rod portion 121 may be colored or scented.

[0050] In one embodiment, the medium portion 122 may include a cavity, and the cavity may be filled with a medium. For example, the medium matrix filling the medium portion 122 may include at least one of reconstituted tobacco, tobacco shreds, and tobacco particles. For example, a suitable length range for the medium portion 122 may be from 6 mm to 18 mm, but is not limited thereto.

[0051] In addition, the medium section 122 may include aerosol-generating substances such as glycerol. Furthermore, the medium section 122 may also include other additives, such as flavoring agents, humectants, and / or organic acids.

[0052] In one embodiment, the medium in the medium section 122 may include pH-treated reconstituted tobacco, shredded tobacco leaves, and tobacco pellets. For example, one or more of the reconstituted tobacco, shredded tobacco, and tobacco pellets may be pH-treated with a pH adjuster to make it alkaline (e.g., pH 7.0 to 9.5), and may include at least one of potassium carbonate (K₂CO₃), sodium bicarbonate (NaHCO₃), and calcium oxide (CaO). However, the substances included in the pH adjuster are not limited to the examples described above, and substances that produce less off-flavor during smoking may also be used. The pH adjuster can increase the pH value of the medium matrix included in the medium section 122. Compared to a medium matrix that has not been treated with a pH adjuster, a medium matrix including one or more of the reconstituted tobacco, shredded tobacco, and tobacco pellets treated with an alkaline pH value can increase the amount of nicotine released when heated. In other words, even if the heating temperature of the medium section 122 is only 0ºC to 150ºC or not heated at all, sufficient nicotine yield can still be obtained through alkaline treatment after treatment with an alkaline pH adjuster.

[0053] In one embodiment, the first filter rod portion and / or the second filter rod portion may be made of cellulose acetate filter rod portion and may further include a plasticizer, such as triacetin (TA) or triethyl citrate (TEC). Thus, free nicotine in the media portion can be adsorbed onto at least one of the first filter rod portion and the second filter rod portion.

[0054] Figure 2 The accompanying drawing schematically illustrates an aerosol generation system according to one embodiment, wherein an aerosol generation device is combined with an aerosol generation article.

[0055] Reference Figure 2 According to one embodiment, the aerosol generation system 1 may include an aerosol generation device 1 and an aerosol generation article 12.

[0056] Reference Figure 2 According to one embodiment, the aerosol generating apparatus 11 may include a battery 111, a control unit 112, a vaporizer 113, and an elongated cavity 114.

[0057] Those skilled in the art should understand that Figure 2 The aerosol generator 11 shown is except Figure 2 In addition to the relevant components described herein, other general components may also be included. Furthermore, the aerosol generating device 11 may be rod-shaped or holder-shaped.

[0058] In one embodiment, the aerosol generating device may be an apparatus that generates aerosol using a cartridge containing the aerosol generating substance of the present invention. Additionally, the cartridge may include a liquid composition according to an embodiment of the present invention.

[0059] The aerosol generating device including vaporizer 113 may include a cartridge containing an aerosol generating substance and a liquid composition, and a body supporting the cartridge. The liquid composition may be a liquid composition including a humectant (including the aforementioned propylene glycol (PG) and vegetable glycerin (VG)), WS-3, and menthol. The cartridge is detachably attached to the body, but is not limited thereto. The cartridge and body may be integrally formed or assembled, and the cartridge may be secured to prevent separation due to the user. The cartridge may be installed in the body in a state containing the aerosol generating substance and the liquid composition. However, the implementation is not limited to this; the aerosol generating substance and the liquid composition may also be injected into the cartridge while it is attached to the body.

[0060] The cartridge may contain aerosol-generating substances or compositions in any of the following states: liquid, solid, gas, or gel. However, according to an embodiment of the present invention, it is preferable to include liquid aerosol-generating substances or compositions. For example, the aerosol-generating substance may be a liquid containing tobacco-containing substances with volatile tobacco aroma components, or it may be a liquid containing non-tobacco-containing substances.

[0061] The cartridge can operate based on electrical or radio signals transmitted by the main body, causing a phase change in the aerosol-generating substances inside the cartridge to convert them into gas, thereby achieving the function of generating aerosols. Aerosols can refer to a mixture of vapor particles generated from aerosol-generating substances and air.

[0062] Additionally, battery 111 can provide the power required for the operation of aerosol generating device 11. For example, battery 111 can supply power to vaporizer 113 so that vaporizer 113 can heat the liquid composition, etc. In addition, battery 111 can provide the power required for the operation of displays, sensors, motors, etc. installed in aerosol generating device 11.

[0063] In one embodiment, battery 111 may be a lithium iron phosphate (LiFePO4) battery, but is not limited thereto. For example, battery 111 may be a lithium cobalt oxide (LiCoO2) battery, a lithium titanate battery, or a lithium-ion battery, etc.

[0064] For example, battery 111 can be a cylinder with a diameter of 10 mm and a length of 37 mm, but is not limited to this. For example, the capacity of battery 111 can be from 120 mAh to 250 mAh, but is not limited to this. Furthermore, battery 111 can be a rechargeable battery or a disposable battery. For example, when battery 111 is rechargeable, its charge rate (C-rate) can be 10C, and its discharge rate (C-rate) can be from 10C to 20C, but is not limited to this. Additionally, for static use, battery 111 should be manufactured to ensure that it retains more than 80% of its total capacity even after 2000 charge / discharge cycles.

[0065] In one embodiment, the control unit 112 can control the operation of the aerosol generating device 11 as a whole. Specifically, in addition to the battery 111 and the vaporizer 113, the control unit 112 can also control the operation of other components included in the aerosol generating device 11. Furthermore, the control unit 112 can check the status of each component of the aerosol generating device 11 to determine whether the aerosol generating device 11 is in an operational state.

[0066] In one embodiment, the control unit 112 may include at least one processor. The processor may be implemented as a plurality of gate arrays, or as a combination of a general-purpose microprocessor and a memory storing a program executable by the microprocessor. It will be apparent to those skilled in the art that the at least one processor may be other forms of hardware.

[0067] In one embodiment, the vaporizer 113 can heat the liquid composition to generate an aerosol and release the generated aerosol to an inserted aerosol generating article 12, causing the generated aerosol to flow through the aerosol generating article 12 inserted into the elongated cavity 114. Tobacco flavor can thus be added to the aerosol flowing through the aerosol generating article 12, and the user can inhale the tobacco-flavored aerosol by sucking one end of the aerosol generating article 12. In one embodiment, the vaporizer 113 may also be referred to as a cartomizer or atomizer. According to one embodiment, the vaporizer 113 can be alternatively incorporated into the aerosol generating device 11.

[0068] In one embodiment, the aerosol generating device 11 may include a heater. According to one embodiment, the aerosol generating article 12 can migrate nicotine in a non-heated state. Furthermore, in a low-temperature heating mode via the heater, nicotine migration can be promoted, thereby increasing the amount of nicotine migrated. Compared to the non-heated mode, the low-temperature heating mode of the heater can achieve a higher intensity of smoking flavor, and the amount of nicotine migrated can be easily adjusted between the non-heated mode and the low-temperature heating mode.

[0069] The heater can be heated by power supplied by battery 111. For example, when the aerosol generating article 12 is inserted into the aerosol generating device 11, the heater can be located outside the aerosol generating article 12. Therefore, the heated heater can increase the temperature of the aerosol generating substance inside the aerosol generating article 12.

[0070] For example, the heater can be a resistance heater. For example, the heater can include an electrical conduction track, and the heater can be heated when current flows through the electrical conduction track. However, the heater is not limited to the examples described above; any example of heating the heater to the desired temperature is applicable and unrestricted. Here, the desired temperature can be preset in the aerosol generating apparatus 11 or set by the user.

[0071] Alternatively, as another example, the heater may be an induction heater. Specifically, the heater may include a conductive coil for induction heating of the aerosol generating article 12, and the aerosol generating article 12 may include an induction heating element (susceptor) to be heated by the induction heater.

[0072] For example, the heater may include at least one of tubular heating elements, plate heating elements, needle heating elements or rod heating elements, which can heat the interior or exterior of the aerosol generating article 12 according to the shape of the heating element.

[0073] Furthermore, heaters can be provided in the aerosol generating apparatus 11 in the form of multiple heaters. In this case, the multiple heaters can be arranged to be inserted into the interior of the aerosol generating article 12 or located outside the aerosol generating article 12. In addition, some of the multiple heaters can be arranged to be inserted into the interior of the aerosol generating article 12, while the rest can be arranged to be located outside the aerosol generating article 12.

[0074] In one embodiment, the elongated cavity 114 may contain the aerosol-generating article 12. In another embodiment, a heater may be configured to surround the outer surface of the elongated cavity 114 to heat the aerosol-generating article contained within the elongated cavity 114. According to one embodiment, the heater may be configured to surround at least a portion of the outer surface of the elongated cavity 114.

[0075] In addition to the battery 111, control unit 112, vaporizer 113, and elongated cavity 114, the aerosol generating device 11 may also include general-purpose components. For example, the aerosol generating device 11 may include a sensing unit, an output unit, a user input unit, a memory, and a communication unit.

[0076] According to one embodiment, the aerosol generating device 11 may include a vaporizer 113 and an elongated cavity 114 arranged in series or in parallel.

[0077] Reference Figure 2 The aerosol generated by the vaporizer 113 can be introduced into the elongated cavity 114 through the airflow channel in the aerosol generating device 11, thereby flowing through the aerosol generating article 12. Tobacco flavor or nicotine can then be added to the aerosol flowing through the aerosol generating article 12, and the user can inhale the tobacco-flavored or nicotine-infused aerosol by sucking on one end of the aerosol generating article 12.

[0078] According to one embodiment, the vaporizer 113 may include a liquid reservoir, a liquid transfer means, a heating element, and an airflow passage. The components of the vaporizer 113 may be made of polycarbonate material, but are not limited thereto.

[0079] In one embodiment, the control unit 112 can control the temperature of the heating element by controlling the current supplied to the heating element. Therefore, the control unit 112 can control the amount of aerosol generated by the liquid composition by controlling the current supplied to the heating element. Furthermore, the control unit 112 can also control the supply of power to the heating element for a predetermined duration upon sensing user inhalation. For example, the control unit 112 can control the supply of power to the heating element for 1 to 5 seconds after sensing user inhalation.

[0080] In one embodiment, the control unit 112 can control the amount of aerosol released from the vaporizer 113 by controlling the opening and closing state of the airflow channel. Specifically, the control unit 112 can increase the amount of aerosol released from the vaporizer 113 by increasing the opening size of the airflow channel, and decrease the amount of aerosol released from the vaporizer 113 by decreasing the opening size of the airflow channel. For example, the control unit 112 can use a dial to control the opening of the airflow channel.

[0081] In one embodiment, when the liquid composition content in the reservoir is less than a preset amount, the control unit 112 can notify the user of the insufficient liquid composition information via a vibration motor or a display screen.

[0082] In one embodiment, the control unit 112 can control the temperature at which the heater heats the aerosol generating article 12. For example, the control unit 112 can control the temperature of the heater heating medium section.

[0083] In one embodiment, the control unit 112 can control the heater to switch between a non-heating mode and a low-temperature heating mode. In the non-heating mode, the heater may not heat the aerosol generating article 12, and the medium section may also not be heated. In the low-temperature heating mode, the heater can heat the aerosol generating article 12 to a low temperature of 0°C or higher and 150°C or lower. In this mode, the medium section may also be heated to a low temperature of 0°C or higher and 150°C or lower.

[0084] When the aerosol generating article 12 switches between a non-heating mode and a low-temperature heating mode, the smoke intensity can be adjusted. In the non-heating mode, the amount of nicotine migrating from the medium may be relatively small, and therefore the smoke intensity may also be relatively low. In the low-temperature heating mode, compared to the non-heating mode, the amount of nicotine migrating from the medium is relatively large, and therefore the smoke intensity may also be relatively high. Therefore, in the low-temperature heating mode, sufficient smoke intensity can be ensured even without increasing the pH value of the medium.

[0085] -Example 1. Experimental Example 1: Evaluation of Menthol Migration Using Liquid Compositions As shown in Table 1 below, aerosol generating articles with a certain amount of menthol and liquid compositions of different compositions for non-heated aerosol generating systems were prepared. Aerosols were collected, and the migration of menthol was measured by gas chromatography (GC). The results are shown in Table 1.

[0086] [Table 1]

[0087] As shown in Table 1 above, compared with Example 1 (control group) containing only humectant, the menthol migration of the composition of Example 2 with added WS-3 was slightly increased; however, the menthol migration of the composition of Example 3 with added menthol was decreased. This indicates that adding menthol alone may adversely affect atomization due to component imbalance (e.g., precipitation).

[0088] Furthermore, the composition of Example 4, which simultaneously added a humectant, WS-3, and menthol, exhibited a significantly higher menthol migration rate than the compositions of Example 2, which only added a humectant and WS-3, or Example 3, which only added a humectant and menthol. This demonstrates that the simultaneous addition of WS-3 and menthol has a synergistic effect on increasing menthol migration.

[0089] 2. Experimental Example 2: Evaluating the migration of menthol based on the amount of coolant added. As shown in Table 2 below, liquid compositions with different compositions for non-heated aerosol generation systems were prepared by adding WS-23 as a coolant, and the migration of menthol was measured using the same method as in Experimental Example 1. The results are shown in Table 2.

[0090] [Table 2]

[0091] As shown in Table 2 above, compared with Example 5 which includes WS-3 and menthol, the migration of menthol in the compositions of Examples 6 to 8 which include the additional coolant WS-23 is further increased, and the migration of menthol is further increased with the increase of the amount of WS-23 added.

[0092] This indicates that the limitation of increased menthol migration due to the low solubility of WS-3 can be overcome by adding WS-23, and a more effective menthol cooling sensation can be provided by including menthol, WS-3 and WS-23 simultaneously.

[0093] The above description of the embodiments is merely illustrative, and those skilled in the art will understand that various modifications can be made to the above embodiments and other equivalent embodiments can be implemented. Therefore, the scope of this disclosure should be defined by the appended claims, and all differences from the equivalent scope described in the claims will be interpreted as being included within the scope of protection defined by the claims.

[0094] Features and aspects of any of the above embodiments may be combined with features and aspects of any other embodiments, provided that such combinations do not result in obvious technical conflicts.

Claims

1. A composition for an aerosol generation system, characterized in that, include: Moisturizers, including propylene glycol and vegetable glycerin; N-Ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide; as well as Menthol.

2. The composition for an aerosol generation system according to claim 1, characterized in that, The weight ratio of propylene glycol to vegetable glycerin in the moisturizer is 8:2 to 2:

8.

3. The composition for an aerosol generation system according to claim 1, characterized in that, Based on the composition, the content of N-ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide is less than 1.5 wt%.

4. The composition for an aerosol generation system according to claim 1, characterized in that, The humectant contains propylene glycol in a weight ratio of 5:5 to vegetable glycerin. Based on the composition, the content of N-ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide is less than 1.5 wt%.

5. The composition for an aerosol generation system according to claim 1, characterized in that, Based on the composition, the content of menthol is 10 to 15 wt%.

6. The composition for an aerosol generation system according to claim 1, characterized in that, The composition also includes N,2,3-trimethyl-2-isopropylbutyramide.

7. The composition for an aerosol generation system according to claim 6, characterized in that, Based on the composition, the content of N,2,3-trimethyl-2-isopropylbutyramide is greater than 0 and less than 5 wt%.

8. The composition for an aerosol generation system according to claim 1, characterized in that, The aerosol generation system is either non-heating or low-temperature heating type (0°C to 150°C).

9. A cigarette cartridge for an aerosol generation system comprising a liquid composition, characterized in that, The liquid composition comprises: Moisturizers, including propylene glycol and vegetable glycerin; N-ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide; and Menthol.

10. An aerosol generation system, characterized in that, include: An aerosol-generating article comprising a media section and one or more filter rod sections; as well as An aerosol generating device, comprising a battery, a control unit, and a vaporizer. The medium portion includes one or more of reconstituted tobacco, tobacco shreds, and tobacco particles. The liquid composition is sprayed onto one or more surfaces of the reconstituted tobacco, tobacco shreds, and tobacco particles. The liquid composition includes: Moisturizers, including propylene glycol and vegetable glycerin; N-ethyl-5-methyl-2-(1-methylethyl)cyclohexaneformamide; and Menthol.

11. The aerosol generation system according to claim 10, characterized in that, The aerosol generating device also includes a smoke cartridge. The cartridge includes the liquid composition.

12. The aerosol generation system according to claim 10, characterized in that, The liquid composition is sprayed onto one or more filter rod sections.

13. The aerosol-generating article according to claim 10, characterized in that, One or more of the reconstituted tobacco, tobacco shreds, and tobacco particles are subjected to pH treatment to achieve a pH value of 7.0 to 9.

5.

14. The aerosol-generating article according to claim 10, characterized in that, One or more of the reconstituted tobacco, tobacco shreds, and tobacco particles generate volatile free nicotine under non-heating conditions or under low-temperature heating conditions from 0°C to 150°C.

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