A flavor sealing unit, an electromagnetically heated cigarette, and an aerosol generation system

Abstract

This patent discloses a flavoring sealing unit, an electromagnetically heated cigarette, and an aerosol generation system. The flavoring sealing unit includes a wrapping layer, an adhesive layer, a sealing layer, and a metal sheet. The wrapping layer encapsulates the flavoring and is fixed to the sealing layer by the adhesive layer to seal and preserve the flavoring. A metal sheet is fixedly connected to the side of the sealing layer away from the flavoring. The metal sheet can generate heat under electromagnetic induction, thereby releasing the flavoring. This patent utilizes the electromagnetic induction generated by heating the cigarette device to heat the adhesive layer at close range, causing it to melt and releasing the flavoring from its seal. This allows the characteristic aroma of the flavoring within the sealing unit to be inhaled from the very first puff when smoking the electromagnetically heated cigarette.

Description

Technical Field

[0001] This patent belongs to the field of novel tobacco technology, specifically relating to a flavor sealing unit, an electromagnetically heated cigarette, and an aerosol generation system. Background Technology

[0002] Heated cigarettes, as a new type of tobacco product, have seen rapid development in recent years. They employ a "heat-but-not-burn" method to heat the tobacco, but like traditional cigarettes, they produce visible smoke. The non-combustion characteristic significantly reduces the harmful substances in this smoke. However, when smoking heated cigarettes, an external heat source is needed to heat the tobacco matrix. As the smoking time increases, the state of the tobacco matrix continuously changes, causing the composition of the resulting aerosol smoke to also change. This is particularly true for the tobacco aroma components, resulting in inconsistencies in the aroma composition from puff to puff. Flavoring heated cigarettes is necessary to address this issue.

[0003] Currently, the main methods for flavoring heated cigarettes include built-in flavor capsules, added flavoring threads, and blended flavorings with tobacco. However, the built-in flavor capsule method requires manual squeezing to release the capsule before smoking, while blended flavorings and added flavoring threads have poor sealing properties, leading to issues such as flavor transfer, distorted aroma, inconsistent aroma before and after smoking, and indistinct characteristic aromas. Existing technologies include flavoring compartments that can be sealed and preserved for extended periods. By placing this flavoring compartment in the hollow section inside the heated cigarette, the flavorings in the compartment can be released promptly and effectively under the influence of the smoke temperature, allowing the characteristic aromas to be perceived through the senses during smoking.

[0004] However, for heated cigarette devices containing needle-type heating elements, the heat generated during the smoking process cannot be directly applied to the flavor chamber. The flavor chamber can only be unsealed by the temperature of the smoke. During the smoking process, it is generally necessary to take the second puff to clearly inhale the characteristic aroma of the flavoring. How to inhale the characteristic aroma of the flavoring in the first puff of a heated cigarette is a technical problem that urgently needs to be solved. Utility Model Content

[0005] The purpose of this patent is to provide a flavor sealing unit, an electromagnetically heated cigarette, and an aerosol generation system, so as to achieve the goal of inhaling the characteristic aroma of the flavor from the very first puff.

[0006] To solve the above-mentioned technical problems, this patent adopts the following technical solution:

[0007] A flavoring sealing unit is used in electromagnetically heated cigarettes. The flavoring sealing unit includes a wrapping layer, an adhesive layer, a sealing layer, and a metal sheet. The wrapping layer is used to wrap the flavoring and is fixed to the sealing layer by the adhesive layer so that the flavoring is sealed and preserved. The side of the sealing layer away from the flavoring is fixedly connected to the metal sheet. The metal sheet can generate heat under the action of electromagnetic induction, thereby releasing the flavoring.

[0008] Furthermore, the thickness of the metal sheet is 0.03–0.04 mm, 0.04–0.05 mm, 0.05–0.06 mm, or 0.06–0.07 mm.

[0009] Furthermore, the metal sheet is made of stainless steel.

[0010] Furthermore, the metal sheet can be made of 400 series stainless steel, such as grade 410, 420 or 430 stainless steel.

[0011] Furthermore, the encapsulation layer is a composite layer, which includes a PLA film and a forming paper, with the PLA film covering the surface of the forming paper.

[0012] Furthermore, the PLA film thickness is 0.03–0.04 mm, 0.04–0.05 mm, or 0.05–0.06 mm;

[0013] The thickness of the forming paper is 0.07 to 0.08 mm.

[0014] Furthermore, the encapsulation layer is made of PLA film material;

[0015] The thickness of the coating layer is 0.04–0.05 mm, 0.05–0.06 mm, 0.06–0.07 mm, 0.07–0.08 mm, or 0.08–0.09 mm.

[0016] Furthermore, the thickness of the adhesive layer is 0.06–0.8 mm, 0.08–0.10 mm, 0.10–0.12 mm, 0.12–0.14 mm, or 0.14–0.15 mm.

[0017] Furthermore, the adhesive layer is an EVA hot melt adhesive layer.

[0018] In this patent, the term "flavoring" means a sensory compound, composition, or material that alters or is intended to alter the taste or aroma characteristics of nicotine during its consumption or inhalation. Preferably, it refers to compounds disclosed in the Flavoring and Extract Manufacturers Association (FEMA) Flavoring Components Library and, in particular, in GRAS Flavoring Substances Publications 3 to 27, see, for example, Hall, RL and Oser, BL, Food Technology, February 1965, pp. 151-197; and in GRAS Flavoring Substances 27, S.M. Cohen et al., Food Technology, August 2015, pp. 40-59; and intermediate GRAS Flavoring Substances Publications 4 to 26. For the purposes of this disclosure, nicotine is not considered a flavoring.

[0019] Furthermore, the fragrance can be provided in the form of a solid fragrance (at room temperature of about 22 degrees Celsius and one atmosphere of pressure) and can include fragrance formulations, fragrance-containing materials and fragrance precursors.

[0020] Furthermore, suitable flavorings include (but are not limited to) any natural or synthetic flavorings, such as tobacco, smoke, menthol, peppermint (e.g., peppermint and mint), chocolate, licorice, citrus and other fruit flavorings, gamma-octyl lactone, vanillin, ethyl vanillin, air freshener flavorings, spice flavorings such as cinnamon, methyl salicylate, linalool, bergamot oil, geranium oil, lemon oil, and ginger oil, etc.

[0021] Furthermore, other suitable flavorings may include flavor compounds selected from the group consisting of acids, alcohols, esters, aldehydes, ketones, pyrazines, combinations thereof, or mixtures thereof. Suitable flavor compounds may, for example, be selected from the group consisting of phenylacetic acid, solanone, megastigmatrienone, 2-heptanone, benzyl alcohol, cis-3-hexene acetate, valeric acid, valeric aldehyde, esters, terpenes, sesquiterpenes, naringenone, maltol, damastone, pyrazines, lactones, anethole, isovaleric acid, combinations thereof.

[0022] This patent further provides an electromagnetically heated cigarette, which includes a hollow section and a flavor sealing unit as described above.

[0023] Preferably, the electromagnetically heated cigarette includes an aerosol-forming matrix located in the smoke-generating section, which generates an aerosol that can be directly inhaled into the user's lungs through the user's mouth by heating.

[0024] Preferably, the aerosol forming matrix can have a length between about 5 mm and about 15 mm, for example, between about 8 mm and about 12 mm. In one embodiment, the aerosol forming matrix can have a length of about 1 mm. In a preferred embodiment, the aerosol forming matrix has a length of about 12 mm.

[0025] Preferably, the aerosol forming matrix is ​​a solid aerosol forming matrix. The aerosol forming matrix may include both solid and liquid components.

[0026] Preferably, the aerosol-forming matrix includes nicotine. In some preferred embodiments, the aerosol-forming matrix includes tobacco.

[0027] For example, aerosol forming matrix materials can be formed from sheets of homogeneous tobacco.

[0028] Alternatively or additionally, the aerosol forming matrix may include tobacco-free aerosol forming materials. For example, the aerosol forming material may be a tablet comprising nicotine salts and aerosol forming agents.

[0029] If the aerosol forming matrix is ​​a solid aerosol forming matrix, then the solid aerosol forming matrix may include one or more of the following: powder, granules, pellets, fragments, strips, bars or sheets, and contains one or more of the following: herbaceous plant leaves, tobacco leaves, tobacco ribs, flat tobacco and homogeneous tobacco materials.

[0030] Alternatively, the solid aerosol forming matrix may contain tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds released when the solid aerosol forming matrix is ​​heated. The solid aerosol forming matrix may also contain one or more capsules comprising, for example, additional tobacco volatile aromatic compounds or non-tobacco volatile aromatic compounds, and such capsules may melt during heating of the solid aerosol forming matrix.

[0031] Alternatively, the solid aerosol forming matrix can be placed on or embedded in a thermally stable carrier.

[0032] Alternatively, the carrier may be in the form of powder, granules, pellets, fragments, strips, bars or sheets.

[0033] Alternatively, the solid aerosol forming matrix can be arranged on the surface of the carrier in the form of, for example, sheets, foams, gels or slurries.

[0034] Alternatively, the solid aerosol forming matrix can be placed on the entire surface of the carrier, or alternatively, it can be arranged in a pattern to provide uneven fragrance delivery during use.

[0035] In this patent, homogeneous tobacco material refers to a material formed by aggregating particulate tobacco.

[0036] In this patent, sheet refers to a layered element having a width and length substantially greater than its thickness.

[0037] In this patent, "aggregate" refers to a sheet that is generally transverse to the longitudinal axis of the aerosol-generating article of an electromagnetically heated cigarette, and is wound, folded, compressed, or shrunk.

[0038] Preferably, the aerosol forming matrix comprises an aggregated textured sheet of homogeneous tobacco material.

[0039] Preferably, in this patent, textured sheet refers to a sheet that has been rolled, embossed, stamped, perforated, or otherwise deformed. The aerosol forming matrix may include an aggregated textured sheet of homogeneous tobacco material, comprising a plurality of spaced-apart notches, protrusions, perforations, or combinations thereof.

[0040] Preferably, the aerosol forming matrix comprises aggregated rolled sheets of homogeneous tobacco material. The use of textured sheets of homogeneous tobacco material can advantageously promote the aggregation of the homogeneous tobacco material sheets to form the aerosol forming matrix.

[0041] In this patent, "curled sheet" refers to a sheet having a plurality of substantially parallel ridges or wrinkles.

[0042] Preferably, when the aerosol-generating article as an electromagnetically heated cigarette has been assembled, the substantially parallel ridges or folds extend along or parallel to the longitudinal axis of the aerosol-generating article. This advantageously promotes the aggregation of the rolled sheet of homogeneous tobacco material to form the aerosol-forming matrix. However, it will be understood that the rolled sheet of homogeneous tobacco material contained in the aerosol-generating article may alternatively or additionally have a plurality of substantially parallel ridges or folds arranged at acute or obtuse angles to the longitudinal axis of the aerosol-generating article when the aerosol-generating article has been assembled.

[0043] The aerosol forming matrix can be in the form of a plug, which includes an aerosol forming material defined by paper or other packaging material. In the case where the aerosol forming matrix is ​​in the form of a plug, an integral plug comprising any packaging paper is considered to be an aerosol forming matrix.

[0044] In this patent, "aerosol forming agent" is used to describe any suitable known compound or mixture of compounds that promotes aerosol formation in use and is substantially resistant to thermal degradation at the operating temperature of an aerosol-generating article of electromagnetically heated cigarettes.

[0045] Suitable aerosol forming agents are known in the art and include, but are not limited to: polyols, such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerol; esters of polyols, such as glycerol monoacetate, glycerol diacetate, or glycerol triacetate; and aliphatic esters of mono-, di-, or polycarboxylic acids, such as dimethyl dodecanoate and dimethyl tetradecanoate. Preferred aerosol forming agents are polyols or mixtures thereof, such as propylene glycol, triethylene glycol, 1,3-butanediol, and most preferably glycerol.

[0046] The aerosol forming matrix may include a single aerosol forming agent. Alternatively, the aerosol forming matrix may include a combination of two or more aerosol forming agents.

[0047] Preferably, the aerosol forming matrix has an aerosol forming agent content of more than 5% by dry weight. More preferably, the aerosol forming matrix may have an aerosol forming agent content between about 5% and about 30% by dry weight. In one embodiment, the aerosol forming matrix has an aerosol forming agent content of about 20% by dry weight.

[0048] Aerosol forming matrix, including homogeneous tobacco sheet for use in aerosol-generating articles as electromagnetically heated cigarettes, can be manufactured using existing manufacturing processes in the art, such as rolling, slurry, and papermaking.

[0049] Aerosol-generated products of electromagnetically heated cigarettes can have the shape of traditional cigarettes. Cigarette articles, including cigarettes, and their specifications are typically named according to the length of the cigarette, as described below. "Standard" usually refers to cigarettes in the range of 68mm to 75mm, for example, approximately 68mm to 72mm in length. "Short" or "mini" refers to cigarettes shorter than 68mm. "Extra-standard" usually refers to cigarettes in the range of 75mm to 91mm, for example, approximately 79mm to 88mm in length. "Long" or "extra-long" usually refers to cigarettes in the range of 91mm to 105mm, for example, approximately 94mm to 101mm in length. "Extra-long" usually refers to cigarettes in the range of approximately 110mm to 121mm in length. Additionally, cigarette articles are named according to the outer circumference of the cigarette, as described below. The terms "standard" and "extra-fine" refer to cigarettes with a circumference of approximately 23mm to 25mm; "coarse" refers to cigarettes with a circumference of more than 25mm; "fine" refers to cigarettes with a circumference of approximately 22mm to 23mm; "long and thin" refers to cigarettes with a circumference of approximately 19mm to 22mm; "extra-fine" refers to cigarettes with a circumference of approximately 16mm to 19mm; and "micro-fine" refers to cigarettes with a circumference of less than 16mm. Therefore, extra-standard and extra-fine cigarettes have, for example, a length of approximately 83mm and a circumference of approximately 17mm. Standard and extra-standard cigarettes, with a length of 75mm to 91mm and a circumference of 23mm to 25mm, are popular with many customers. Cigarette products of various specifications can also be manufactured with filter segments of different lengths. Generally, shorter filter segments are used for cigarette products with both shorter length and shorter circumference. Typically, the length of the filter rod segment ranges from 15mm, used with "short" and "standard" cigarette products, to 30mm, used with "extra long" and "extra thin" cigarette products. The tipping paper in the longitudinal direction of the cigarette product with the filter rod segment is, for example, 3mm to 10mm longer than the filter rod segment.

[0050] Preferably, the hollow section can be located directly downstream of the aerosol forming matrix and can be close to the aerosol forming matrix.

[0051] Preferably, the hollow segment can be formed of any suitable material or combination of materials. For example, the hollow segment can be formed of one or more materials selected from the group consisting of: cellulose acetate; paperboard; crimped paper, such as crimped heat-resistant paper or crimped parchment; and polymeric materials, such as low-density polyethylene (LDPE). In a preferred embodiment, the hollow segment is formed of cellulose acetate.

[0052] In a preferred embodiment, the hollow section comprises a cellulose acetate tube.

[0053] Preferably, the hollow segment, as a support element, can have a length between approximately 5 mm and approximately 15 mm. In a preferred embodiment, the support element has a length of approximately 8 mm.

[0054] Preferably, the cooling section, serving as an aerosol cooling element, can be located downstream of the aerosol forming matrix. For example, the aerosol cooling element can be located directly downstream of the support element and adjacent to it. Alternatively, the aerosol cooling element can be located between the support element and the filter rod section, with the filter rod section located at the downstream end of the aerosol-generating article.

[0055] Preferably, the aerosol cooling element can have a total surface area between approximately 300 square millimeters per millimeter of length and approximately 1000 square millimeters per millimeter of length. In a preferred embodiment, the aerosol cooling element has a total surface area of ​​approximately 500 square millimeters per millimeter of length.

[0056] Preferably, the aerosol cooling element has low suction resistance. That is, preferably, the aerosol cooling element provides low resistance to air passing through the aerosol-generated article. Preferably, the aerosol cooling element has virtually no impact on the suction resistance of the aerosol-generated article.

[0057] The aerosol cooling element may include multiple longitudinally extending channels. These multiple longitudinally extending channels may be defined by a sheet material that has undergone one or more of curling, pleating, gathering, and folding to form the channels. Alternatively, the multiple longitudinally extending channels may be defined by a single sheet that has undergone one or more of curling, pleating, gathering, and folding to form multiple channels.

[0058] In some embodiments, the aerosol cooling element may include an aggregate sheet of material selected from the group consisting of: metal foil, polymeric materials, and substantially non-porous paper or paperboard. In some embodiments, the aerosol cooling element may include an aggregate sheet of material selected from the group consisting of: polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA), and aluminum foil. In a preferred embodiment, the aerosol cooling element includes an aggregate sheet of biodegradable material. For example, an aggregate sheet of non-porous paper or an aggregate sheet of biodegradable polymeric material (such as polylactic acid).

[0059] Preferably, the filter section can be formed from one or more suitable filter materials. Many such filter materials are known in the art. In one embodiment, the filter section can be formed from cellulose acetate tow.

[0060] This patent also provides an aerosol generation system, which includes a needle-type heated smoking device and the aforementioned electromagnetically heated cigarette. The needle-type heated smoking device serves as an aerosol generation apparatus, used to illustrate the interaction between the aerosol-forming matrix of the aerosol-generating article and the aerosol generation process.

[0061] Preferably, the aerosol generating device is a smoking device that interacts with the aerosol generating matrix of the aerosol generating article to generate an aerosol that can be directly inhaled into the user's lungs through the user's mouth. The aerosol generating device may be a fixator for a smoking article.

[0062] The aerosol generating article is designed to engage with an electrically operated aerosol generating apparatus, including an induction heating source. The induction heating source or sensor generates a fluctuating electromagnetic field to heat a sensor located within the fluctuating electromagnetic field. In use, the aerosol generating article engages with the aerosol generating apparatus such that the sensor is located within the fluctuating electromagnetic field generated by the sensor. In this patent, the sensor is needle-shaped.

[0063] Preferably, the aerosol generating device is capable of generating a wave electromagnetic field with a field strength (H field) between 1 kA / m and 5 kA / m, for example between 2 kA / m and 3 kA / m, for example about 2.5 kA / m.

[0064] Preferably, the aerosol generating device is a portable or handheld aerosol generating device that can be comfortably held between the fingers of a single hand. The aerosol generating device can be substantially cylindrical in shape. The aerosol generating device can have a length between approximately 70 mm and approximately 120 mm.

[0065] Preferably, the aerosol generating device is self-powered, and the power source can be any suitable power source, such as a DC voltage source, like a battery. In one embodiment, the power source is a lithium-ion battery. Alternatively, the power source can be a nickel-metal hydride battery, a nickel-cadmium battery, or a lithium-based battery, such as a lithium cobalt, lithium iron phosphate, lithium titanate, or lithium polymer battery.

[0066] Preferably, the aerosol generating device is adaptable to the inhalation heating temperature curves of different types of electromagnetically heated cigarettes, that is, to obtain a better taste by preset dynamic adjustment of the inhalation heating temperature. The aerosol generating device may be equipped with a control element to control the inhalation heating temperature curve, and the control element may be a simple switch. Alternatively, the control element may be a circuit, and may include one or more microprocessors or microcontrollers.

[0067] Preferably, the aerosol generation system may include an aerosol generation device and one or more aerosol generation articles as electromagnetically heated cigarettes, wherein the aerosol generation device is configured with a corresponding number of heating chambers to contain the aerosol generation articles.

[0068] This patent provides a flavoring sealing unit that can be installed in an electromagnetically heated cigarette and used in conjunction with a heated smoking device containing a needle-type heating element. Through the electromagnetic induction generated by the heated smoking device, a metal sheet heats the adhesive layer at close range, causing it to melt and thus releasing the sealing conditions of the flavoring. This allows the characteristic aroma of the flavoring sealed in the flavoring unit to be inhaled from the very first puff when smoking the electromagnetically heated cigarette. Attached Figure Description

[0069] The above content of this patent and the following detailed embodiments will be better understood when read in conjunction with the accompanying drawings. It should be noted that the drawings are merely examples of the claimed technical solution.

[0070] Figure 1 This is a schematic diagram of the fragrance sealing unit structure in this patent;

[0071] Figure 2 for Figure 1 Schematic diagram of the middle section;

[0072] Figure 3 This is a schematic diagram showing the fragrance position in the fragrance sealing unit of this patent;

[0073] Figure 4 This is a schematic diagram of the electromagnetically heated cigarette in this patent.

[0074] Figure 5 This is a schematic diagram showing the position of the flavor sealing unit inside the electromagnetically heated cigarette in this patent.

[0075] The reference numerals in the attached figures are explained as follows:

[0076] Fragrance sealing unit: 10

[0077] Encapsulation layer: 11

[0078] EVA hot melt adhesive layer: 12

[0079] Encapsulation layer: 13

[0080] Metal sheet: 14

[0081] Fragrance: 15

[0082] Hollow section: 20

[0083] First contact surface: 21

[0084] Second contact surface: 22

[0085] Smoke-generating section: 30

[0086] Cooling phase: 40

[0087] Filter rod section: 50 Detailed Implementation

[0088] The detailed features and advantages of this patent are described below in the specific embodiments. The content is sufficient to enable any person skilled in the art to understand the technical content of this patent and implement it accordingly. Based on the specification, claims and drawings disclosed in this specification, a person skilled in the art can easily understand the related objectives and advantages of this patent.

[0089] This specification also uses several compound terms to describe devices, components, equipment, etc. that include more than one function, or to assign additional functions to a corresponding device, component, equipment, etc. Those skilled in the art will understand that such compound terms can be implemented by a single or multiple devices, components, equipment, etc., as long as they are reasonable under the interpretation rules of this patent terminology.

[0090] It should be noted that in this specification, similar reference numerals and letters in the following figures denote similar items; therefore, once an item is defined in one figure, it does not need to be further defined and interpreted in subsequent figures. In this specification and claims, several terms will be used, and unless otherwise indicated, these terms will be defined as having the following meanings:

[0091] The terms “comprising” or “having” have the same meaning as “containing”, and also include other forms of the term, such as the gerund and singular forms in English, meaning including but not limited to, and not intended to exclude, for example, other elements, components, integers or steps.

[0092] All other terms used herein for special definition are intended to have the general meaning understood by one of ordinary skill in the art, and in particular, meaning that one of ordinary skill in the art, upon reading the claims, specification and drawings of this patent, can directly and without doubt determine how the technical solution of this patent can be implemented.

[0093] Even if there are incomplete descriptions, omissions, or ambiguities in the grammar, words, punctuation, graphics, symbols, etc. of the claims, specification, and drawings of this patent, a person skilled in the art can still arrive at the only correct understanding by reading the claims, specification, and drawings as a whole without extensive reasoning or experimentation, and effectively exclude various incorrect interpretations that are not aimed at achieving the purpose of this patent.

[0094] Those skilled in the art would first choose to read the claims, specification, and drawings of this patent to reasonably interpret the terms; secondly, they would choose to refer to the relevant definitions in other documents published by the applicant before the filing date to reasonably interpret the terms; thirdly, they would choose the references cited in this patent to reasonably interpret the terms; and finally, they would choose to combine the technical dictionaries, technical manuals, reference books, textbooks, national or industry technical standards, etc., commonly used by those skilled in the art to reasonably interpret the terms.

[0095] All references cited in this application are incorporated herein by way of quotation, to the extent that they do not contradict the disclosure herein. It will be apparent to those skilled in the art that products (apparatus, components, devices, compounds, compositions, materials, etc.) and methods (processes, steps, conditions, parameters, equipment, and test methods, equipment, etc.) not specifically described herein can be applied to the implementation of the inventions fully disclosed herein without the need for excessive experimentation. This patent is intended to cover all functional equivalents known in the art of the methods, apparatus, apparatus components, materials, processes, and techniques specifically described herein. All cited references include:

[0096] The following publications are included: Marks' Standard Handbook for Mechanical Engineers (11th edition and other editions prior to the filing date of this application), published by McGraw-Hill, Inc.; DeGarmo's Materials and Processes in Manufacturing (13th edition and other editions prior to the filing date of this application), published by Wiley; Oberg's Handbook (32nd edition and other editions prior to the filing date of this application), published by IndustrialPress Inc.; Cheng Daxian's Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Chemical Industry Press; and Wen Bangchun's Modern Mechanical Design Handbook (6th edition and other editions prior to the filing date of this application), published by Machinery Industry Press.

[0097] This patent will now be described with reference to the accompanying drawings, in which similar reference numerals denote similar elements. While specific structures and arrangements are discussed, it should be understood that this is done merely for illustrative purposes. Those skilled in the art will recognize that other structures and arrangements can be used without departing from the spirit and scope of this patent. It will be clear to those skilled in the art that this patent can also be used in a variety of other applications.

[0098] Example 1

[0099] like Figures 1-5 As shown, this patent provides a flavoring sealing unit 10, which is applied in electromagnetically heated cigarettes. The flavoring sealing unit 10 includes a wrapping layer 11, an adhesive layer, a sealing layer 13, and a metal sheet 14. The wrapping layer 11 is used to wrap the flavoring 15, and the wrapping layer 11 is fixed to the sealing layer 13 by the adhesive layer to seal and preserve the flavoring 15. The metal sheet 14 is fixedly connected to the side of the sealing layer 13 away from the flavoring 15. The metal sheet 14 can generate heat under the action of electromagnetic induction, thereby releasing the flavoring 15. The adhesive layer is an EVA hot melt adhesive layer 12. Specifically, the flavoring sealing unit 10 is composed of flavoring 15, wrapping layer 11, EVA hot melt adhesive layer 12, sealing layer 13, and metal sheet 14.

[0100] The material of the wrapping layer 11 is a PLA film with a thickness ranging from 0.04 mm.

[0101] The thickness of the EVA hot melt adhesive layer 12 is 0.06 mm.

[0102] The encapsulation layer 13 is a composite layer, which is composed of PLA film and forming paper. The thickness of PLA film is 0.03 mm and the thickness of forming paper is 0.075 mm.

[0103] The metal sheet 14 has a thickness of 0.03 mm and is made of stainless steel. Specifically, the metal sheet can be made of 400 series stainless steel, such as 410, 420 or 430 grade stainless steel.

[0104] The electromagnetically heated cigarette includes a smoke-generating section 30, a hollow section 20, a cooling section 40, and a filter rod section 50 arranged in sequence, with the flavor sealing unit 10 built into the hollow section 20 of the electromagnetically heated cigarette.

[0105] The hollow section 20 is located near the smoke-generating section 30 as the first contact surface 21, and the hollow section 20 is located near the cooling section 40 as the second contact surface 22. The fragrance sealing unit 10 can be located near the first contact surface 21.

[0106] Example 2

[0107] like Figures 1-5As shown, this patent provides a flavoring sealing unit 10, which is applied in electromagnetically heated cigarettes. The flavoring sealing unit 10 includes a wrapping layer 11, an adhesive layer, a sealing layer 13, and a metal sheet 14. The wrapping layer 11 is used to wrap the flavoring 15, and the wrapping layer 11 is fixed to the sealing layer 13 by the adhesive layer to seal and preserve the flavoring 15. The metal sheet 14 is fixedly connected to the side of the sealing layer 13 away from the flavoring 15. The metal sheet 14 can generate heat under the action of electromagnetic induction, thereby releasing the flavoring 15. The adhesive layer is an EVA hot melt adhesive layer 12. Specifically, the flavoring sealing unit 10 is composed of flavoring 15, wrapping layer 11, EVA hot melt adhesive layer 12, sealing layer 13, and metal sheet 14.

[0108] The material of the encapsulation layer 11 is a PLA film with a thickness ranging from 0.06 mm.

[0109] The thickness of the EVA hot melt adhesive layer 12 is 0.08 mm.

[0110] The encapsulation layer 13 is a composite layer, which is composed of PLA film and forming paper. The thickness of PLA film is 0.04 mm and the thickness of forming paper is 0.075 mm.

[0111] The metal sheet 14 has a thickness of 0.04 mm and is made of stainless steel. Specifically, the metal sheet can be made of 400 series stainless steel, such as 410, 420 or 430 grade stainless steel.

[0112] The electromagnetically heated cigarette includes a smoke-generating section 30, a hollow section 20, a cooling section 40, and a filter rod section 50 arranged in sequence, with the flavor sealing unit 10 built into the hollow section 20 of the electromagnetically heated cigarette.

[0113] The hollow section 20 is located near the smoke-generating section 30 as the first contact surface 21, and the hollow section 20 is located near the cooling section 40 as the second contact surface 22. The fragrance sealing unit 10 can be located in the middle of the first contact surface 21 and the second contact surface 22.

[0114] Example 3

[0115] like Figures 1-5 As shown, this patent provides a flavoring sealing unit 10, which is applied in electromagnetically heated cigarettes. The flavoring sealing unit 10 includes a wrapping layer 11, an adhesive layer, a sealing layer 13, and a metal sheet 14. The wrapping layer 11 is used to wrap the flavoring 15, and the wrapping layer 11 is fixed to the sealing layer 13 by the adhesive layer to seal and preserve the flavoring 15. The metal sheet 14 is fixedly connected to the side of the sealing layer 13 away from the flavoring 15. The metal sheet 14 can generate heat under the action of electromagnetic induction, thereby releasing the flavoring 15. The adhesive layer is an EVA hot melt adhesive layer 12. Specifically, the flavoring sealing unit 10 is composed of flavoring 15, wrapping layer 11, EVA hot melt adhesive layer 12, sealing layer 13, and metal sheet 14.

[0116] The material of the encapsulation layer 11 is a PLA film with a thickness ranging from 0.09 mm.

[0117] The thickness of the EVA hot melt adhesive layer 12 is 0.15mm.

[0118] The encapsulation layer 13 is a composite layer, which is composed of PLA film and forming paper. The thickness of PLA film is 0.06 mm and the thickness of forming paper is 0.075 mm.

[0119] The metal sheet 14 has a thickness of 0.07 mm and is made of stainless steel. Specifically, the metal sheet can be made of 400 series stainless steel, such as 410, 420 or 430 grade stainless steel.

[0120] The electromagnetically heated cigarette includes a smoke-generating section 30, a hollow section 20, a cooling section 40, and a filter rod section 50 arranged in sequence, with the flavor sealing unit 10 built into the hollow section 20 of the electromagnetically heated cigarette.

[0121] The hollow section 20 is located near the smoke-generating section 30 as the first contact surface 21, and the hollow section 20 is located near the cooling section 40 as the second contact surface 22. The fragrance sealing unit 10 can be located near the second contact surface 22.

[0122] To further illustrate the advantages of this patent, the fragrance sealing unit 10 prepared in Examples 1 to 3 was subjected to performance testing.

[0123] Test Example 1

[0124] The fragrance sealing unit was heated in an electromagnetic induction heating experimental device, with the metal sheet heating rate being 5℃ / min. The melting of the EVA hot melt adhesive layer in the fragrance sealing unit of Examples 1 to 3 was observed.

[0125] Experimental results show that the fragrance sealing units in Examples 1-3 can all begin to melt at around 60°C, with some fragrance seeping out and the sealing layer beginning to be permeated by the fragrance. The melting rate increases with every 5°C increase in temperature until the fragrance is completely released from the fragrance sealing unit.

[0126] Test Example 2

[0127] An aerosol generation system was formed by combining the electromagnetically heated cigarette with the built-in flavoring sealing unit 10 prepared in Examples 1-3 and a needle-type heated smoking device. The preheating time of the aerosol generation system was set to 20 seconds, and the preheating temperature was set to 380°C. After preheating, smoking was started for evaluation. An evaluation group of no less than 13 people evaluated the smoke characteristics of the cigarette sample according to the YC / T 497-2014 standard "Sensory Evaluation Method for Chinese Style Cigarette".

[0128] All needle-type heated smoking devices of this patent can adopt conventional heated smoking devices containing needle-type heating elements used in the prior art. As an example, a heating rod disclosed in Chinese patent document CN217011228U can be used as a heated smoking device. The heating rod includes a heating chamber and an electronic component chamber. The heating chamber includes an outer shell layer and an inner layer. An electromagnetic induction system is provided on the inner surface of the outer shell layer. An opening is provided at the top of the heating chamber. A tobacco cartridge containing plant extracts is placed in the opening of the heating chamber. The tobacco cartridge does not contain nicotine but contains Gynostemma pentaphyllum, giving the smoke health benefits. A needle-type heating part is provided at the bottom of the inner cavity of the heating chamber. An electronic component assembly is provided in the electronic component chamber. The electronic component assembly is connected to the electromagnetic induction system and the needle-type heating part. A charging part is provided on the heating rod. Electronic component assembly connection; the electronic component assembly includes a storage battery and a circuit board. The storage battery is electrically connected to the circuit board, the circuit board is electrically connected to the electromagnetic induction system, the circuit board is electrically connected to the pin-type heating part, and the circuit board is electrically connected to the charging part. The circuit board is provided with a charging module, a switch control module, and status lights. The cavity wall of the electronic component chamber is provided with switch and status light display ports, with the switch and switch control module arranged correspondingly, and the status light display ports and status lights arranged correspondingly. The circuit board is also provided with a power display module and a Bluetooth module. The cavity wall of the electronic component chamber is also provided with a power display port, with the power display port and power display module arranged correspondingly. A distance L is provided between the inner surface of the outer shell layer and the outer surface of the inner layer.

[0129] The aerosol generation system of Examples 1-3 was evaluated by inhalation, and the fragrance sealing unit of Examples 1-3 was able to release the fragrance during the preheating stage. The characteristic aroma of fragrance 15 could be felt in the first puff after the preheating was completed.

[0130] The flavoring sealing unit of this patent can preserve the flavoring for an extended period without inhaling heated cigarettes. When inhaling heated cigarettes and activating the electromagnetic heater, the metal sheet in the flavoring sealing unit heats up under the influence of the magnetic field, reaching a temperature of 60°C. The EVA hot-melt adhesive layer begins to melt. As the metal sheet continues to heat, the temperature rises further, and the EVA hot-melt adhesive layer continues to melt. During this process, the EVA hot-melt adhesive layer of the flavoring sealing unit gradually melts, the seal is released, and the flavoring gradually overflows, allowing its characteristic aroma to volatilize. Preferably, the seal of the flavoring sealing unit is released before the electromagnetic heating device has finished preheating. Once the electromagnetic heater has finished preheating, the smoker can inhale the characteristic aroma of the flavoring from the very first puff.

[0131] In the foregoing description of exemplary embodiments / specific implementations of this patent, various features of this patent are sometimes combined in a single embodiment / specific implementation or its figures and description, with the aim of simplifying the disclosure and aiding in the understanding of one or more aspects of the various inventive creations. However, unless expressly stated otherwise or in obvious technical contradiction or exclusion, the descriptive method of this patent should not be construed as reflecting an intention that the claimed inventive creation claims more features than are expressly stated in each claim. Rather, the inventive aspect reflected in the claims lies in not all features of a single foregoing disclosed embodiment / specific implementation. Therefore, the claims following the detailed description are hereby expressly incorporated into this detailed description, each claim existing independently as a separate embodiment / specific implementation of this patent.

[0132] Furthermore, while some embodiments / specific implementations described herein include, but are not limited to, other features included in other embodiments / specific implementations, combinations of features from different embodiments / specific implementations are intended to be within the scope of this patent and form different embodiments / specific implementations, as will be understood by those skilled in the art. For example, in the following claims, embodiments / specific implementations of any claim can be used in any combination.

[0133] The terms and expressions used in this specification are for illustrative purposes and not for limitation. Their use is not intended to exclude any equivalents of the shown and described features or portions thereof, but rather to facilitate the understanding that various modifications may be possible within the scope of this patent claim. Therefore, it should be understood that while this patent has been specifically disclosed through preferred embodiments, exemplary embodiments, and optional features, variations or modifications of the concepts disclosed herein may be adopted by those skilled in the art, and such variations and modifications are therefore considered to be within the scope of this patent as defined by the appended claims. The specific embodiments given in this specification are examples of useful embodiments of this patent, and it will be apparent to those skilled in the art that this patent can be implemented using many variations of the devices, device components, and method steps disclosed herein.

[0134] The foregoing description of specific embodiments fully discloses the general features of this patent, enabling others to easily modify and / or adapt such embodiments for various applications by applying knowledge within the scope of the art, without excessive experimentation or deviation from the general concept of this patent. Therefore, based on the teachings and guidance provided herein, it is intended that such modifications and alterations be included within the meaning and scope of equivalents of the disclosed embodiments. It should be understood that the wording or terminology used herein is for descriptive purposes and not intended to be limiting; thus, the wording or terminology in this specification will be interpreted by those skilled in the art based on the foregoing teachings and guidance.

[0135] Furthermore, the scope of this patent should not be limited to any of the exemplary embodiments described above, but only to the appended claims and their equivalents.

Claims

1. A fragrance sealing unit, characterized by, The flavor sealing unit is used in electromagnetically heated cigarettes. The flavor sealing unit includes a wrapping layer, an adhesive layer, a sealing layer, and a metal sheet. The wrapping layer is used to wrap the flavor, and the wrapping layer is fixed to the sealing layer by the adhesive layer so that the flavor is sealed and preserved. The metal sheet is fixedly connected to the side of the sealing layer away from the flavor. The metal sheet can generate heat under the action of electromagnetic induction, thereby releasing the flavor.

2. The fragrance sealing unit according to claim 1, characterized in that, The thickness of the metal sheet is 0.03-0.04mm, 0.04-0.05mm, 0.05-0.06mm, or 0.06-0.07mm.

3. The fragrance sealing unit according to claim 2, characterized in that, The metal sheet is made of stainless steel.

4. The fragrance sealing unit according to claim 1, characterized in that, The encapsulation layer is a composite layer, which includes a PLA film and a forming paper, with the PLA film covering the surface of the forming paper.

5. The fragrance sealing unit according to claim 4, characterized in that, The thickness of the PLA film is 0.03–0.04 mm, 0.04–0.05 mm, or 0.05–0.06 mm; The thickness of the forming paper is 0.07 to 0.08 mm.

6. The fragrance sealing unit according to claim 1, characterized in that, The wrapping layer is a PLA film material; The thickness of the wrapping layer is 0.04–0.05 mm, 0.05–0.06 mm, 0.06–0.07 mm, 0.07–0.08 mm, or 0.08–0.09 mm.

7. The fragrance sealing unit according to claim 1, characterized in that, The thickness of the adhesive layer is 0.06–0.8 mm, 0.08–0.10 mm, 0.10–0.12 mm, 0.12–0.14 mm, or 0.14–0.15 mm.

8. The fragrance sealing unit according to claim 7, characterized in that, The adhesive layer is an EVA hot melt adhesive layer.

9. An electromagnetically heated cigarette, the electromagnetically heated cigarette comprising a hollow section, characterized in that, The hollow section is provided with a fragrance sealing unit as described in any one of claims 1 to 8.

10. An aerosol generation system, characterized in that, The aerosol generation system includes a needle-type heated smoking device and the electromagnetically heated cigarette as described in claim 9.

Images