WO2023188372A1

WO2023188372A1 - Atomization unit and method for manufacturing same, and inhalation device

Info

Publication number: WO2023188372A1
Application number: PCT/JP2022/016813
Authority: WO
Inventors: 光史松本; 雄史新川; 貴久工藤; 毅長谷川; 学山田
Original assignee: 日本たばこ産業株式会社
Priority date: 2022-03-31
Filing date: 2022-03-31
Publication date: 2023-10-05

Abstract

Provided is a technology relating to an atomization unit of an inhalation device capable of imparting a sufficient flavor to an aerosol. An atomization unit of an inhalation device, said atomization unit being equipped with: a liquid housing part in which an aerosol-producing liquid containing nicotine is housed; an electrical load which is placed in an air passage for flowing air therethrough, into which the aerosol-producing liquid in the liquid housing part is introduced, and by which the introduced aerosol-producing liquid is atomized to generate an aerosol; and a flavoring molded body which is placed at the upstream and/or downstream locations in the air passage in the air flow direction from the load. The flavoring molded body contains a non-tobacco base material and a flavoring material, the flavoring material contains a tobacco material, and the content of the tobacco material in the flavoring molded body is 10 wt% or less.

Description

Atomization unit and its manufacturing method, and suction tool

The present invention relates to an atomization unit of a suction tool, a method for manufacturing the same, and a suction tool.

Conventionally, as an atomization unit used in a non-combustion heating type suction device, a liquid storage part for storing an aerosol generation liquid, the aerosol generation liquid in the liquid storage part is introduced, and the introduced aerosol generation liquid is atomized. An atomization unit is known that includes an electrical load that generates an aerosol and a flavor source that imparts a flavor component to the aerosol (for example, see Patent Document 1).

Note that Patent Document 2 can be cited as another prior art document. Patent Document 2 discloses information regarding tobacco leaf extract.

Japanese Patent Application Publication No. 2020-141705 International Publication No. 2015/129679

The conventional atomization unit as described above has room for improvement in terms of sufficiently imparting flavor to aerosol.

The present invention has been made in view of the above, and one of its objects is to provide a technology related to an atomization unit of a suction tool that can impart sufficient flavor to an aerosol.

(Aspect 1)
In order to achieve the above object, a suction device according to one aspect of the present invention is arranged in a liquid storage part that stores an aerosol generating liquid containing nicotine and an air passage through which air passes, and is arranged in a liquid storage part that stores an aerosol generating liquid containing nicotine, and is arranged in an air passage through which air passes, so that the aerosol in the liquid storage part is When the generated liquid is introduced, an electrical load is provided to atomize the introduced aerosol generating liquid to generate an aerosol, and a portion of the air passageway is located upstream and downstream of the load in the air flow direction. a flavor molded body disposed on at least one of the sides, the flavor molded body containing a non-tobacco base material and a flavor material, and the flavor material containing a tobacco material and the flavor molding. The content of the tobacco material in the body is 10% by weight or less.

(Aspect 2)
In the above aspect 1, the air passage includes a load passage section in which the load is arranged, and an upstream passage that communicates with the load passage section and is arranged upstream of the load passage section in the air flow direction. and a downstream passage portion that communicates with the load passage portion and is disposed downstream of the load passage portion in the air flow direction, and the flavor molded object has a It may be arranged in at least either one of the downstream passage parts.

(Aspect 3)
In the above-mentioned aspect 2, the flavor molded body may be arranged in both the upstream passage section and the downstream passage section.

(Aspect 4)
In any one of the above aspects 1 to 3, the flavor molded object has a rod shape extending along the flow direction of the air in the air passage, and at least one of the inside and the side surface thereof includes: It may have an air flow path that extends in the axial direction of the flavor molded object and allows air to flow therethrough.

(Aspect 5)
In any one of the above aspects 1 to 4, the flavor molded object has a rod shape extending along the flow direction of air in the air passage, and is perpendicular to the flow direction of air in the air passage. A plurality of the flavor molded bodies may be arranged in parallel along the cross-sectional direction, and an air flow path may be formed to circulate air between the flavor molded bodies arranged in parallel.

(Aspect 6)
In any one of the above aspects 1 to 3, the flavor molded body has a bellows sheet shape as a whole, and a plurality of sheet portions extending along the flow direction of air in the air passage; A ridgeline section that connects each sheet section in a bellows-like manner and extends along the air flow direction, and allows air to flow between the sheet sections connected via the ridgeline section. An air flow path may be formed.

(Aspect 7)
In any one of the above aspects 1 to 3, the flavor molded body has a plate shape extending along the flow direction of air in the air passage, and is perpendicular to the flow direction of air in the air passage. A plurality of the flavor molded bodies are arranged side by side to face each other at intervals along the cross section, and an air flow path is formed for circulating air between the flavor molded bodies arranged facing each other. may have been done.

(Aspect 8)
Further, a suction tool according to one aspect of the present invention includes the atomizing unit according to any one of aspects 1 to 7 above, and a power source that supplies power to the load, and a power source unit to which the atomizing unit is detachably attached. and.

(Aspect 9)
Further, a method for manufacturing an atomization unit of a suction device according to one aspect of the present invention includes: an atomization unit housing in which a liquid storage portion and an air passage are formed; an aerosol generating liquid containing nicotine; and a non-tobacco base material. and a preparatory step of preparing a flavor molded body containing a flavor material, and an electrical load for atomizing the aerosol-generating liquid to generate an aerosol; and storing the aerosol-generating liquid in the liquid storage section, and an assembling step of arranging the flavor molded body and the load in a passageway, the flavor material containing tobacco material and the content of the tobacco material in the flavor molded body being 10% by weight or less, and the In the assembly process, the load is arranged in such a manner that the aerosol generating liquid is introduced from the liquid storage part, and the flavor molded body is placed at a location upstream and downstream of the load in the air flow direction. Place it in at least one of the locations.

According to the aspect of the present invention, it is possible to provide a technology related to an atomization unit of a suction tool that can impart sufficient flavor to an aerosol.

FIG. 1 is a perspective view schematically showing the appearance of a suction tool according to a first embodiment. FIG. 2 is a schematic cross-sectional view showing the main parts of the atomization unit of the suction tool according to the first embodiment. FIG. 3 is a diagram schematically showing a cross section taken along the line A1-A1 in FIG. FIG. 4 is a schematic perspective view of the flavor molded article according to Embodiment 1. FIG. 5 is a flow diagram for explaining the method for manufacturing the atomization unit according to the first embodiment. FIG. 6 is a diagram showing the results of measuring the TPM reduction rate with respect to the amount of carbonized components contained in 1 g of aerosol generating liquid containing nicotine. FIG. 7 is a longitudinal sectional view of the atomization unit according to Modification 1 of Embodiment 1. FIG. 8 is a cross-sectional view of the atomization unit according to Modification 1 of Embodiment 1. FIG. 9 is a longitudinal sectional view of the atomization unit according to the second modification of the first embodiment. FIG. 10 is a cross-sectional view of the atomization unit according to the second modification of the first embodiment. FIG. 11 is a longitudinal sectional view of the atomization unit according to the third modification of the first embodiment. FIG. 12 is a cross-sectional view of the atomization unit according to the third modification of the first embodiment. FIG. 13 is a cross-sectional view of the atomization unit according to Modification 4 of Embodiment 1. FIG. 14 is a cross-sectional view of the atomization unit according to the fifth modification of the first embodiment. FIG. 15 is a schematic cross-sectional view of an atomization unit according to a sixth modification of the first embodiment. FIG. 16 is a longitudinal sectional view of the atomization unit according to Modification Example 7 of Embodiment 1. FIG. 17 is a cross-sectional view of the atomization unit according to Modification Example 7 of Embodiment 1. FIG. 18 is a longitudinal cross-sectional view of the atomization unit according to the second embodiment. FIG. 19 is a longitudinal cross-sectional view of the atomization unit according to the third embodiment.

Hereinafter, embodiments of an atomization unit and a suction tool equipped with the same according to the present invention will be described with reference to the drawings, but these descriptions are merely examples of the embodiments of the present invention, and the gist of the present invention is not limited to the following. It is not limited to these contents as long as they do not exceed. Furthermore, although a plurality of embodiments will be described in this specification, various conditions in each embodiment may be applied to each other within an applicable range. Furthermore, the dimensions, materials, shapes, relative arrangements, etc. of the constituent elements described in the embodiments are merely examples. In addition, in this specification, each embodiment will be described with reference to drawings as necessary, but these drawings are schematically illustrated to facilitate understanding of the features of the embodiments, and each configuration is The dimensional ratios of elements etc. are not necessarily the same as the actual ones. Further, in the drawings of the present application, XYZ orthogonal coordinates are illustrated as necessary.

Here, the atomization unit according to the embodiment is
a liquid storage section that stores an aerosol-generating liquid containing nicotine;
an electrical load disposed in an air passage through which air passes, into which the aerosol-generating liquid in the liquid storage section is introduced, and which atomizes the introduced aerosol-generating liquid to generate an aerosol;
A flavor molded body disposed in at least one of a location upstream and downstream of the load in the air flow direction in the air passage;
Equipped with
The flavor molded article includes a non-tobacco base material and a tobacco material, and the content of the tobacco material in the flavor molded article is specified to be 10% by weight or less.

Further, the air passage includes a load passage section in which the load is disposed, an upstream passage section that communicates with the load passage section and is disposed upstream of the load passage section in the air flow direction; a downstream passage that communicates with the load passage and is disposed downstream of the load passage in the air flow direction, and the flavor molded body is connected to the upstream passage and the downstream passage. It may be arranged at least on either side. Moreover, the said flavor molded object may be arrange|positioned in both the said upstream passage part and the said downstream passage part.

Further, the method for manufacturing the atomization unit according to the embodiment includes:
An atomizing unit housing in which a liquid storage part and an air passage are formed, an aerosol generating liquid containing nicotine, a flavor molding containing a non-tobacco base material and a flavoring material, and atomizing the aerosol generating liquid to generate an aerosol. a preparation process for preparing an electrical load;
an assembly step of accommodating an aerosol generating liquid in a liquid accommodating section and arranging a flavor molded body and a load in an air passage;
has
The flavor material in the flavor molded body contains tobacco material, and the content of tobacco material in the flavor molded body is specified to be 10% by weight or less,
In the assembly process,
The load is arranged in such a manner that the aerosol generating liquid is introduced from the liquid storage part, and the flavor molded body is arranged at at least one of a location upstream and downstream of the load in the air flow direction. do.

<Embodiment 1>
FIG. 1 is a perspective view schematically showing the appearance of a suction tool 10 according to the first embodiment. The suction device 10 according to the present embodiment is a non-combustion heating type suction device, and specifically, a non-combustion heating type flavor suction device.

As an example, the suction tool 10 according to the present embodiment extends in the direction of the central axis CL of the suction tool 10. Specifically, the suction tool 10 has, for example, a "long axis direction (direction of the central axis CL)", a "width direction" perpendicular to the long axis direction, and a "thickness" perpendicular to the long axis direction and the width direction. It has an external shape having a direction. The dimensions of the suction tool 10 in the long axis direction, width direction, and thickness direction decrease in this order. In this embodiment, among the orthogonal coordinates of X-Y-Z, the Z-axis direction (Z direction or -Z direction) corresponds to the major axis direction, and the X-axis direction (X direction or -X direction) corresponds to the width direction, and the Y-axis direction (Y direction or -Y direction) corresponds to the thickness direction.

The suction tool 10 has a power supply unit 11 and an atomization unit 12. The power supply unit 11 is detachably connected to the atomization unit 12. Inside the power supply unit 11, a battery as a power source, a control device, etc. are arranged. When the atomization unit 12 is connected to the power supply unit 11, the power supply of the power supply unit 11 and the load 40 of the atomization unit 12, which will be described later, are electrically connected.

Here, the reference numeral 120 in FIG. 1 is an atomization unit housing that houses various elements constituting the atomization unit 12, and a part of the housing also serves as a mouthpiece that the user holds in his or her mouth for suction. The atomization unit housing 120 of the atomization unit 12 has

inflow ports

72a and 72b, which are holes for introducing air into the atomization unit housing 120 from the outside, and

inlets

72a and 72b for introducing aerosol from the inside of the atomization unit housing 120 to the outside. A discharge port 13 is provided for discharging the air contained therein. When using the suction tool 10, the user of the suction tool 10 can inhale air containing aerosol discharged from the outlet 13.

A sensor is arranged in the power supply unit 11 to output the value of the pressure change inside the suction tool 10 caused by the user's suction through the discharge port 13. When the user starts suctioning air, a sensor detects the start of suctioning air, transmits this to the control device, and the control device starts energizing the load 40 of the atomization unit 12, which will be described later. Further, when the user finishes suctioning the air, the sensor detects the end of the suction of air, and notifies the control device of this, and the control device ends the energization of the load 40.

Note that the power supply unit 11 may be provided with an operation switch for transmitting a request to start air suction and a request to end air suction to the control device by a user's operation. In this case, the user can transmit a request to start air suction or a request to end suction to the control device by operating the operation switch. The control device that receives this suction start request or suction end request starts or ends energization to the load 40.

Note that the configuration of the power supply unit 11 as described above is similar to the power supply unit of a known suction tool as exemplified in Patent Document 1, so a more detailed explanation will be omitted.

FIG. 2 is a schematic cross-sectional view showing the main parts of the atomization unit 12 of the suction tool 10 according to the first embodiment. Specifically, FIG. 2 schematically shows a cross section (hereinafter also referred to as a "longitudinal cross section") of the main part of the atomization unit 12 taken along a plane including the central axis CL. FIG. 3 is a diagram schematically showing a cross section taken along the line A1-A1 in FIG. 2 (that is, a cross section taken along a cross section normal to the central axis CL, also referred to as a "cross section"). The atomization unit 12 will be explained with reference to FIGS. 2 and 3.

The atomization unit 12 (atomization unit housing 120) according to the present embodiment includes a plurality of walls (walls 70a to 70g) extending in the longitudinal direction (direction of the central axis CL), and has a width It includes a plurality of wall portions (wall portions 71a to 71c) extending in the direction. Further, the atomization unit 12 includes an air passage 20 , a wick 30 , an electrical load 40 , a liquid storage section 50 , and a flavor molded body 60 disposed in the air passage 20 .

The air passage 20 is a passage through which air passes when the user suctions air (that is, when suctioning an aerosol). The air passage 20 according to this embodiment includes an upstream passage section, a load passage section 22, and a downstream passage section 23. The upstream passage section according to the present embodiment includes a plurality of upstream passage sections, specifically, an upstream passage section 21a (i.e., "first upstream passage section") and an upstream passage section 21b ( In other words, it includes a "second upstream passage section"). However, the air passage may have a single upstream passage, or may have three or more upstream passages.

The

upstream passage portions

21a and 21b are arranged upstream of the load passage portion 22 (upstream in the air flow direction). The downstream ends of the

upstream passage sections

21a and 21b communicate with the load passage section 22. The load passage section 22 is a passage section in which a load 40 is disposed. The downstream passage section 23 is a passage section disposed downstream of the load passage section 22 (downstream side in the air flow direction). An upstream end of the downstream passage section 23 communicates with the load passage section 22 . Further, the downstream end of the downstream passage section 23 communicates with the discharge port 13 described above. The air that has passed through the downstream passage section 23 is discharged from the discharge port 13.

Specifically, the upstream passage section 21a according to the present embodiment is provided in an area surrounded by a wall 70a, a wall 70b, a wall 70e, a wall 70f, a wall 71a, and a wall 71b. There is. Further, the upstream passage portion 21b is provided in an area surrounded by the wall portion 70c, the wall portion 70d, the wall portion 70e, the wall portion 70f, the wall portion 71a, and the wall portion 71b. The load passage section 22 is provided in an area surrounded by a wall 70a, a wall 70d, a wall 70e, a wall 70f, a wall 71b, and a wall 71c. The downstream passage section 23 is provided in an area surrounded by the cylindrical wall section 70g.

The wall portion 71a of the atomization unit housing 120 is provided with

inflow ports

72a and 72b. Air outside the housing flows into the upstream passage section 21a through the inlet 72a, and flows into the upstream passage section 21b through the inlet 72b. Further, the wall portion 71b is provided with a communication hole 72c and a communication hole 72d. Air that has passed through the upstream passage section 21a flows into the load passage section 22 through the communication hole 72c, and air that has passed through the upstream passage section 21b flows into the load passage section 22 through the communication hole 72d.

In the present embodiment, the direction of flow of air (flow direction) in the

upstream passages

21a and 21b is opposite to the direction of flow of air in the downstream passage 23. Specifically, in this embodiment, the direction of air flow in the

upstream passage sections

21a and 21b is the -Z direction, and the direction of air flow in the downstream passage section 23 is the Z direction.

Further, as shown in FIGS. 2 and 3, the upstream passage section 21a and the upstream passage section 21b according to the present embodiment sandwich the liquid storage section 50 between the upstream passage section 21a and the upstream passage section 21b. As such, it is arranged adjacent to the liquid storage section 50.

Specifically, as shown in FIG. 3, the upstream passage section 21a according to the present embodiment is configured to accommodate liquid in a cross-sectional view (i.e., a cross-sectional view) taken along a cut plane normal to the central axis CL. It is arranged on one side (the side in the -X direction) with the section 50 interposed therebetween. On the other hand, the upstream passage section 21b is arranged on the other side (the side in the X direction) with the liquid storage section 50 in between in this cross-sectional view. In other words, the upstream passage section 21a is arranged on one side of the liquid storage section 50 in the width direction of the atomization unit 12, and the upstream passage section 21b is arranged on one side of the liquid storage section 50 in the width direction of the atomization unit 12. 50.

Note that the cross-sectional shapes of the upstream passage portion 21a and the upstream passage portion 21b are not limited to the polygonal shape illustrated in FIG. (For example, it may be circular.)

The wick 30 is a member for introducing an aerosol generating liquid Le, which will be described later, stored in the liquid storage section 50 into the load 40 of the load passage section 22. Although the specific configuration of the wick 30 is not particularly limited as long as it has such a function, the wick 30 according to the present embodiment utilizes capillary phenomenon to connect the liquid storage part. While absorbing and holding the aerosol generating liquid Le of 50, the aerosol generating liquid Le is introduced into the load 40. The wick 30 can be made of, for example, glass fiber or porous ceramic, but is not limited thereto.

The load 40 is an electrical load for introducing the aerosol generation liquid Le from the liquid storage section 50 and for atomizing the introduced aerosol generation liquid Le to generate an aerosol. In addition, in this specification, "introducing" the aerosol generation liquid Le has substantially the same meaning as "supplying". The specific configuration of the load 40 is not particularly limited, and for example, a heating element such as a heater or an element such as an ultrasonic generator may be used. In this embodiment, a heater is used as an example of the load 40. As this heater, a heating resistor (that is, a heating wire), a ceramic heater, a dielectric heater, or the like can be used. In this embodiment, a heating resistor is used as an example of this heater, and a heating resistor having a coil shape is used as an example of this heating resistor. That is, the load 40 according to this embodiment is a so-called coil heater. This coil heater is wound around the wick 30.

Further, the load 40 according to the present embodiment is arranged in the wick 30 inside the load passage section 22, for example. The load 40 is electrically connected to the power source and control device of the power supply unit 11 described above, and generates heat when electricity from the power source is supplied to the load 40 (that is, generates heat when energized). Further, the operation of the load 40 is controlled by a control device. The load 40 heats and atomizes the aerosol-generating liquid Le in the liquid storage section 50 introduced into the load 40 via the wick 30 to generate an aerosol.

Note that the configurations of the wick 30 and the load 40 are similar to those used in known suction tools such as those exemplified in Patent Document 1, so a detailed description thereof will be omitted.

The liquid storage section 50 is a part for storing the aerosol generation liquid Le. The liquid storage section 50 according to the present embodiment is provided in an area surrounded by a wall 70b, a wall 70c, a wall 70e, a wall 70f, a wall 71a, and a wall 71b. Furthermore, in this embodiment, the aforementioned downstream passage section 23 is provided, as an example, so as to penetrate the liquid storage section 50 in the direction of the central axis CL. However, the configuration is not limited to this, and, for example, the downstream passage section 23 may be provided adjacent to the liquid storage section 50 in the thickness direction (Y-axis direction) of the suction tool 10.

[Aerosol generation liquid]
In this embodiment, as the aerosol generation liquid Le, a liquid containing nicotine in a predetermined solvent is used. The aerosol generation liquid Le is not particularly limited as long as it contains nicotine. The form of nicotine contained in the aerosol generation liquid Le is not particularly limited, and examples include one or more types of nicotine selected from synthetic nicotine and natural nicotine. Note that these synthetic nicotine and natural nicotine may exist as nicotine or as nicotine-containing compounds such as nicotine salts.

The form of the aerosol generation liquid Le is not particularly limited, and for example, one in which a predetermined solvent contains one or more types of nicotine selected from synthetic nicotine and natural nicotine can be used. The specific type of the predetermined solvent is not particularly limited, but for example, one or more types selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water. A liquid containing a substance can be used. In this embodiment, glycerin and/or propylene glycol is used as an example of the predetermined solvent.

When using natural nicotine as the nicotine contained in the aerosol generation liquid Le, specifically, natural nicotine extracted and purified from tobacco leaves can be used. For such a method for producing natural nicotine, a known technique such as that exemplified in Non-Patent Document 1 can be applied, so a detailed explanation will be omitted.

In addition, when using natural nicotine as the nicotine contained in the aerosol generation liquid Le, by purifying the extract of tobacco materials such as tobacco leaves and removing as much as possible components other than natural nicotine from the extract of tobacco materials, The purity of natural nicotine may be increased, and natural nicotine with increased purity may be used. To give a specific numerical example, the purity of the natural nicotine contained in the predetermined solvent of the aerosol generation liquid Le may be 99.9% by weight or more (that is, in this case, the purity of the natural nicotine contained in the natural nicotine ( (components other than natural nicotine) are less than 0.1% by weight). Furthermore, in this specification, components obtained by extracting tobacco materials are referred to as tobacco extract components (containing at least nicotine).

On the other hand, when synthetic nicotine is used as the nicotine contained in the aerosol generation liquid Le, nicotine produced by chemical synthesis using a chemical substance can be used as the synthetic nicotine. The purity of this synthetic nicotine may also be 99.9% by weight or more, similar to natural nicotine.

The method for producing synthetic nicotine is not particularly limited, and any known production method can be used.

The type of nicotine-containing compound is not particularly limited, and examples thereof include nicotine salts such as nicotine pyruvate, nicotine citrate, nicotine lactate, nicotine salicylate, nicotine fumarate, nicotine levulinic acid salt, nicotine benzoic acid salt, or nicotine tartrate. Can be mentioned. When a nicotine-containing compound such as a nicotine salt is synthesized, the production method is not particularly limited, and any known production method can be used.

Tobacco extract components are generally substances contained in tobacco plants, and examples of substances other than nicotine include neophytadiene, solanone, or solanesol, and these components other than nicotine are not included even if they are contained. It does not have to be a fragrance, but if it is contained, it can function as a fragrance. Note that there are two types of nicotine: (S)-nicotine and (R)-nicotine, and most naturally occurring nicotine is usually in the S-form, with the R-form accounting for less than 1 mol%. On the other hand, in synthetic nicotine, the ratio of S-form and R-form is usually close to 1:1, although it depends on the synthesis method and purification method. Therefore, the amount of R-isomer relative to the total amount of nicotine in the oral composition is 5 mol% or more (may be 1 mol% or more, 10 mol% or more, or 40 to 60 mol%). For example, it can be assumed that the nicotine in the oral composition is synthetic nicotine. The target to be extracted may be, for example, tissues of tobacco plants themselves such as leaves, stems, flowers, roots, reproductive organs, or embryos, or processed products using these tobacco plant tissues (for example, known Tobacco powder, shredded tobacco, tobacco sheets, tobacco granules, etc. used in tobacco products) may be used, but from the viewpoint of ensuring a sufficient amount of use and avoiding the inclusion of unnecessary ingredients, tobacco leaves may be used. It is preferable. The embodiment using tobacco extract components obtained by extraction of tobacco materials can lower the raw material cost and manufacturing cost of the aerosol generation liquid Le compared to the embodiment using nicotine obtained by synthesis or the like.

The method of incorporating nicotine into the aerosol generation liquid Le is not particularly limited, and examples include methods of dissolving nicotine-containing compounds such as nicotine or nicotine salts obtained by synthesis or extraction of tobacco materials in the aerosol generation liquid Le; Examples include a method in which nicotine or a nicotine-containing compound is dissolved in a solvent and then mixed with the aerosol generation liquid Le.

The content of nicotine in the aerosol generation liquid Le is not particularly limited, but from the viewpoint of enabling a sufficient supply of nicotine, it may be, for example, 0.1% by weight or more and 10% by weight or less, and 0.5% by weight. % or more and 7.5% by weight or less, and 1% or more and 5% by weight or less. In the embodiment using the aerosol generation liquid Le containing tobacco extract components, the tobacco extract can be used as the nicotine supply source. In this case, the content of the tobacco extract in the aerosol-generating liquid Le is not particularly limited, but may be, for example, 0.1% by weight or more and 10% by weight or less, from the viewpoint of enabling a sufficient supply of nicotine. , may be 0.5% by weight or more and 7.5% by weight or less, and may be 1% by weight or more and 5% by weight or less.

The type of predetermined solvent contained in the aerosol generation liquid Le, such as the type of aerosol base material (base material for generating aerosol), is not particularly limited, and examples include glycerin, propylene glycol, triacetin, 1,3-butanediol, and one or more substances selected from the group consisting of water.

The content of the aerosol base material in the aerosol generation liquid Le is not particularly limited, but from the viewpoint of achieving desired aerosol generation, it may be, for example, 40% by weight or more and 95% by weight or less, 50% by weight or more, It may be 90% by weight or less, and may be 60% by weight or more and 80% by weight or less.

The type of solvent used in the extraction to obtain the above tobacco extract component is not particularly limited as long as it can dissolve nicotine, and examples include glycerin, propylene glycol, triacetin, 1,3-butanediol, and water. One or more substances selected from the group or a liquid containing this substance can be used. In this embodiment, glycerin and/or propylene glycol is used as an example of the predetermined solvent. Note that if the solvent also acts as an aerosol-generating base material, the tobacco extract can be used as it is as an aerosol-generating liquid; however, the tobacco extract may contain components that can cause charring when heated (e.g., lipids, etc.). metal ions, sugars, proteins, etc.), it is preferable to remove substances that cause scorching using means such as vacuum distillation. Note that the tobacco extract can contain flavor components in the tobacco material other than nicotine, and specific examples thereof include neophytadiene and the like.

The aerosol generation liquid Le may have components other than nicotine and the aerosol base material (other components), such as flavor components other than nicotine (including the above-mentioned tobacco extract components other than nicotine), etc. .

Flavor components other than nicotine and flavor components derived from tobacco materials include, for example, menthol, natural vegetable flavorings (for example, cognac oil, orange oil, jasmine oil, spearmint oil, peppermint oil, anise oil, coriander oil, lemon oil) , chamomile oil, labdanum, vetiver oil, rose oil, lovage oil), esters (e.g. menthyl acetate, isoamyl acetate, linalyl acetate, isoamyl propionate, butyl butyrate, methyl salicylate, etc.), ketones (e.g. menthone, ionone) , ethyl maltol, etc.), alcohols (e.g., phenylethyl alcohol, anethole, cis-6-nonen-1-ol, eucalyptol, etc.), aldehydes (e.g., benzaldehyde, etc.), lactones (e.g., ω-penta decalactone, etc.), neophytadiene, solanone, or solanesol.

[Molded object]
Next, the flavor molded body 60 disposed in the air passage 20 will be explained. The flavor molded body 60 includes a non-tobacco base material, a flavor material, etc., and is solidified and molded into a predetermined shape. Further, in the present embodiment, the flavor material contained in the flavor molded body 60 includes at least tobacco material, and the tobacco material in the flavor molded body 60 is specified to be 10% by weight or less. Of course, the flavor material may contain, in addition to the tobacco material, various flavor components not derived from the tobacco material.

The type of material for the non-tobacco base material is not particularly limited as long as it is derived from tobacco materials (specifically, tobacco plants), such as ceramics, synthetic polymers, or pulp derived from plants other than tobacco plants. It may be. Examples of the ceramic include alumina, zirconia, aluminum nitride, and silicon carbide. Examples of the synthetic polymer include polyolefin resin, polyester, polycarbonate, PAN, and EVOH. Examples of plants other than tobacco plants include softwood pulp, hardwood pulp, cotton, fruit pulp, and tea leaves. Further, the non-tobacco base material may be the main material of the flavor molded body 60, particularly the main material that ensures the molding of the flavor molded body 60.

The content of the non-tobacco base material in the flavor molded body 60 is not particularly limited, and may be, for example, 10% by weight or more and 100% by weight or less, 30% by weight or more and 90% by weight or less, 50% by weight or more and 100% by weight or less, It may be more than 80% by weight and less than 80% by weight.

The form of the flavor material contained in the flavor molded body 60 is not particularly limited, and for example, it may be a flavor component itself, or it may be a material that imparts a flavor component ("flavor component imparting material"), and may be a flavor component imparting material. Examples of component-imparting materials include tobacco materials that provide nicotine. In this specification, when the flavor molded body 60 contains a flavor component imparting material, the flavor component imparting material is treated as the flavor material, not the flavor component contained in the flavor component imparting material. For example, when the flavor molded body 60 contains a tobacco material, the flavor material is not nicotine contained in the tobacco material, but the tobacco material.

The form of the tobacco material is not particularly limited; for example, it may contain tissues such as leaves, stems, flowers, roots, reproductive organs, or embryos of tobacco plants, and tobacco materials using these tobacco plant tissues may also be used. Processed products (for example, tobacco powder, shredded tobacco, tobacco sheets, tobacco granules, etc. used in known tobacco products) may be included, but from the viewpoint of ensuring a sufficient amount of use and ease of processing, Tobacco leaves or processed products using tobacco leaves are preferred. Further, the tobacco material may be tobacco residue obtained after extracting these materials, or may be a combination of unextracted tobacco material and tobacco residue, or may be used as a mixed mixture.

As used herein, "the flavoring material contains tobacco material" does not mean that the flavoring material contains tobacco material, but rather that it contains tobacco material as one of the types of flavoring material. , the expression "the flavoring material contains a tobacco material and the content of the tobacco material in the flavor molded body is 10% by weight or less" means "the flavor material contains at least a tobacco material and the content of the tobacco material in the flavor molded body is 10% by weight or less". The content of the material is 10% by weight or less."

Flavor ingredients that serve as flavor materials are not particularly limited, and include, for example, nicotine, menthol, natural vegetable flavorings (e.g., cognac oil, orange oil, jasmine oil, spearmint oil, peppermint oil, anise oil, coriander oil, lemon oil, chamomile). oil, labdanum, vetiver oil, rose oil, lovage oil), esters (e.g. menthyl acetate, isoamyl acetate, linalyl acetate, isoamyl propionate, butyl butyrate, methyl salicylate, etc.), ketones (e.g. menthone, ionone, ethyl maltol, etc.), alcohols (e.g., phenylethyl alcohol, anethole, cis-6-nonen-1-ol, eucalyptol, etc.), aldehydes (e.g., benzaldehyde, etc.), or lactones (e.g., ω-pentadeca), lactone, etc.).

The method of applying the flavoring material to the non-tobacco base material is not particularly limited; for example, the flavoring material may be added by mixing it into the raw material of the non-tobacco base material during the production of the non-tobacco base material; The flavor material may be applied to the surface of the non-tobacco substrate by coating, spraying, etc., or a combination of these may be used.

The content of the flavor material in the flavor molded body 60 is not particularly limited, and may be, for example, 0.1% by weight or more and 70% by weight or less, 1% by weight or more and 60% by weight or less, 3 It may be more than 50% by weight and less than 50% by weight. Further, when the flavor molded body 60 contains tobacco material, the content of the tobacco material in the flavor molded body 60 is not particularly limited, but from the viewpoint of imparting flavor to the air flowing through the air passage 20 as a flavor spice. , is preferably 1% by weight or more, more preferably 3% by weight or more, and even more preferably 7% by weight or more. On the other hand, if the amount of tobacco material contained in the flavor molded body 60 is too large, the tobacco material may be easily separated from the non-tobacco base material. Therefore, from the viewpoint of suppressing the separation of the tobacco material from the non-tobacco base material, the content of the tobacco material in the flavor molded body 60 is preferably 10% by weight or less, and preferably 7% by weight or less. The content is more preferably 3% by weight or less, and even more preferably 3% by weight or less.

The flavor molded body 60 may contain a binder to bond materials included in the flavor molded body 60 such as non-tobacco base materials. The type of binder is not particularly limited, and for example, starch, hydroxyalkylcellulose, polyvinyl acetate, or alkylhydroxyalkylcellulose can be used. In addition, the content of the binder in the flavor molded product may be 1% by weight or more and 20% by weight or less, and may be 3% by weight or more and 15% by weight or less, from the viewpoint of ensuring sufficient adhesiveness. , 5% by weight or more and 10% by weight or less.

The flavor molded body 60 may contain components other than the above-mentioned various components, for example, potassium carbonate, potassium hydrogen carbonate (for pH adjustment), etc.

Additionally, the surface of the flavor molded body 60 may be coated with a coating material such as resin. Of course, the surface of the flavor molded object 60 does not need to be coated with the coating material. However, since the surface of the flavor molded body 60 is coated with a coating material, it becomes easier to maintain the shape of the molded body. Examples of the coating material include polyethylene, polyethylene wax, microcrystalline wax, beeswax, and zein.

Further, in the present embodiment, the density (mass per unit volume) of the flavor molded body 60 may be, for example, 1000 mg/cm ³ or more and 1450 mg/cm ³ or less, or 1100 mg/cm ³ or more and 1450 mg /cm ³ or less. However, the density of the flavor molded body 60 is not limited to this, and may be less than 1000 mg/cm ³ , or greater than 1450 mg/cm ³ , or less than 1100 mg/cm ³ . Alternatively, it may be greater than 1450 mg/cm ³ . When a plurality of flavor molded bodies 60 are present, this density can be determined as the total mass relative to the total volume of the flavor molded bodies 60.

The shape of the flavor molded body 60 according to the present embodiment is not particularly limited, and is, for example, a rod shape (a shape in which the length is longer than the width). The cross-sectional shape of the flavor molded body 60 is not particularly limited, and any shape can be adopted. Further, a plurality of rod-shaped flavor molded bodies 60 may be arranged in a bundle in the air passage 20. In this case, the individual flavor molded bodies 60 may or may not be integrated with each other. In addition, as will be described later, when the flavor molded body 60 has a rod shape, an air flow passage extending in the axial direction of the flavor molded body 60 is formed in at least one of the inside and the side surface (outer surface). Good too. This air flow path is a flow path for circulating air, and can be formed from the front end to the rear end of the flavor molded body 60. Further, the air flow passage may be a through hole formed inside the flavor molded body 60, or a groove formed on the side surface (outer surface) of the flavor molded body 60.

In addition, when using the flavor molded body 60 having a sheet shape, specifically, the flavor molded body 60 may be a sheet made of a mixture of a non-tobacco base material and a flavor material, or a sheet made of a mixture of a non-tobacco base material and a flavor material. A cast sheet of a mixture, a rolled sheet of a mixture of a non-tobacco base material and a flavoring material, or a sheet of a non-tobacco base material to which a flavoring material is applied by coating or spraying on the surface of the sheet can be used. Further, the flavor molded body 60 may be placed in the air passage 20 in a state in which a single sheet is folded into an arbitrary shape such as a bellows shape or a spiral shape. Further, the air passage 20 may be filled with a plurality of strip sheet pieces obtained by cutting the sheet into strips as the flavor molded body 60. In this case, the strip sheet pieces serving as the flavor molded bodies 60 may be arranged in alignment along the air passage 20, or may be arranged randomly without being aligned in a specific direction.

Additionally, the flavor molded body 60 may have a plate shape. Further, the flavor molded body 60 may have a shape other than a rod shape, a plate shape, or a sheet shape. For example, the flavor molded body 60 is in the form of granules, and the air passage 20 may be filled with a plurality of granules forming the flavor molded body 60. Of course, the shape of the granules forming the flavor molded body 60 is not particularly limited.

FIG. 4 is a schematic perspective view of the flavor molded body 60 according to the first embodiment. The flavor molded body 60 shown in FIG. 4 has a rod shape along the extending direction (air flow direction) of the air passage 20 (in the present embodiment, the

upstream passage portions

21a, 21b). More specifically, the flavor molded body 60 has a rectangular parallelepiped shape, and has an axis X1 extending along the direction in which the air passage 20 (in this embodiment, the

upstream passage portions

21a and 21b) extends (air flow direction). have. Moreover, as shown in FIG. 4, the flavor molded body 60 is formed with an air flow passage 61 that penetrates the flavor molded body 60 along the axis X1. In the example shown in FIG. 4, the air flow passage 61 is arranged coaxially with the axis X1 of the flavor molded body 60, but the invention is not limited thereto. Further, the number of air flow passages 61 formed in the flavor molded body 60 is not particularly limited, and for example, a plurality of air flow passages 61 may be formed in the flavor molded body 60. Further, in the example shown in FIG. 4, the cross-sectional shape of the air flow passage 61 is circular, but the cross-sectional shape of the air flow passage 61 is not particularly limited.

Further, in the example shown in FIG. 4, the axis X1 is an axis extending along the longitudinal direction of the flavor molded body 60, but the axis is not limited to this. The shape of the flavor molded body 60 is not particularly limited, and for example, the length dimension of the flavor molded body 60 (the shape of the air flowing through the air passage 20 (in this embodiment, the

upstream passage portions

21a, 21b) The dimension along the flow direction) and the width dimension perpendicular thereto may be equal, or the width dimension may be larger than the length dimension. Of course, in the flavor molded body 60, the shape of the cross section perpendicular to the axis X1 is not particularly limited, and may be a polygon other than a quadrangle, or have other shapes such as a circle or an ellipse. Good too.

Moreover, as shown in FIG. 2, the length dimension of the flavor molded object 60 is smaller than the length dimension of the

upstream passage portions

21a and 21b in the atomization unit 12. One end of the flavor molded body 60 is positioned in contact with the wall 71b of the atomization unit housing 120. Among the

upstream passage sections

21a and 21b, the section where the flavor molded body 60 is not arranged is hollow. Further, the flavor molded body 60 may be positioned and fixed at a prescribed position with its side surface compressed by the wall surfaces of the

upstream passage portions

21a and 21b.

The flavor molded body 60 in this embodiment is arranged in the

upstream passage parts

21a, 21b in such a manner that the ventilation resistance of the air flowing through the

upstream passage parts

21a, 21b does not become excessively large, that is, in such a manner that the smooth circulation of the air is not inhibited. 21b. In the example shown in FIG. 4, since the air flow passage 61 passes through the flavor molded body 60 along the axis X1 direction, air can be smoothly circulated through the air flow passage 61.

Suction of aerosol using the suction tool 10 is performed as follows. First, when a user starts a suction operation while holding the discharge port 13 of the suction tool 10 in his or her mouth, external air flows from each

inlet port

72a, 72b in the atomization unit 12 to the air passage 20 (

upstream passage portion

21a, 21b). Further, when the control device provided in the power supply unit 11 detects the user's suction operation, it issues a command to the battery and starts energizing the load 40 in the atomization unit 12 . The air flowing into the

upstream passage portions

21a, 21b of the air passage 20 from the

respective inflow ports

72a, 72b passes through the air flow passage 61 of the flavor molded body 60 disposed in the

upstream passage portions

21a, 21b. It flows into the load passage section 22 in which the wick 30 and the load 40 are arranged through the communication holes 72c and 72d. As described above, since the flavor molded body 60 in this embodiment has a flavor material containing at least a tobacco material, when air passes through the air flow passage 61 of the flavor molded body 60, the flavor molded body 60 Flavoring materials (eg, flavoring components of tobacco materials) impart flavor to the air.

On the other hand, the wick 30 disposed in the load passage section 22 absorbs and holds the aerosol generation liquid Le supplied from the liquid storage section 50. Therefore, when electricity starts to be applied from the battery to the load 40, the aerosol generation liquid Le held in the wick 30 evaporates. Then, the vapor of the aerosol generation liquid Le generated in the load passage section 22 is mixed with the air (air after flavoring) that has flowed into the load passage section 22 around the wick 30 (which can also be called the "atomization section"). As a result, aerosols are generated. In this way, the air containing the aerosol generated in the load passage section 22 (atomization section) flows into the downstream passage section 23 and is discharged from the discharge port 13 located at the downstream end of the downstream passage section 23. This ultimately attracts the user.

According to the atomization unit 12 and the suction tool 10 equipped with the atomization unit 12 according to the present embodiment as described above, the aerosol generating liquid Le containing nicotine is stored in the liquid storage part 50, and the air passage 20 is A flavor molded body 60 containing a flavor material is arranged. Therefore, the flavor component derived from nicotine contained in the aerosol generation liquid Le and the flavor component contained in the flavor molded body 60 can be added to the air passing through the air passage 20 in two stages. Thereby, the aerosol generated by the atomization unit 12 can be sufficiently flavored. That is, according to the present embodiment, it is possible to impart a deep flavor to the aerosol that cannot be expressed only by the flavor components contained in the aerosol generation liquid Le or the flavor components contained in the flavor molded body 60 alone.

Furthermore, since the flavor molded product 60 in this embodiment has a non-tobacco base material, there is an advantage that the weight can be easily controlled even when it is desired to add a small amount of flavor material to the flavor molded product 60. . Further, by including the non-tobacco base material in the flavor molded body 60, there is an advantage that the volatilization of the flavor component is stabilized during use of the product (improvement of sustained release properties). Further, the flavor molded body 60 contains tobacco material as one type of flavor material, and the content of the tobacco material in the flavor molded body 60 is specified to be 10% by weight or less. In this way, by including a small amount of tobacco material in the flavor molded body 60, a spice-like flavor can be imparted to the aerosol generated in the atomization unit 12. Furthermore, since the amount of tobacco material contained in the flavor molded body 60 is not excessively large, there is an advantage that the tobacco material is difficult to separate from the non-tobacco base material. In addition, since the flavor source that adds flavor to the air passing through the air passage 20 (in this embodiment, the

upstream passage sections

21a and 21b) is arranged in the form of a molded body, the flavor source when assembling the atomization unit 12 can be The molded body 60 is easy to handle.

Next, a method for manufacturing the atomization unit 12 will be explained. FIG. 5 is a flow diagram for explaining a method for manufacturing the atomization unit 12 according to the first embodiment.

[Preparation process]
In the preparation process related to step S10, the atomization unit housing in which the liquid storage part 50 and the air passage 20 are formed, the aerosol generating liquid Le containing nicotine, the flavor molded body 60 containing the non-tobacco base material and the flavor material Then, an electric load 40 that atomizes the aerosol-generating liquid to generate an aerosol, and a wick 30 are prepared. The atomization unit housing referred to here is the atomization unit housing 120 described in FIGS. 2, 3, etc., in which the load 40, the wick 30, the flavor molded body 60, etc. are not yet arranged in the air passage 20, and , refers to the housing in a state before the liquid storage section 50 is filled with the aerosol generation liquid Le.

The specific method for preparing the aerosol generating liquid Le containing nicotine in the preparation step is not particularly limited, and any known method can be adopted. Examples include a method in which a nicotine-containing compound such as nicotine or a nicotine salt obtained by synthesis or the like is dissolved in the aerosol generation liquid, or a method in which a component obtained by extraction of tobacco material is dissolved in the aerosol generation liquid Le. Here, the method for obtaining nicotine-containing compounds such as nicotine or nicotine salts obtained by synthesis etc. is not particularly limited, and can be produced by known methods, but commercially available products may also be used. Moreover, the above-mentioned aerosol generating liquid Le may be a liquid containing an aerosol base material, or may be the aerosol base material itself.

Hereinafter, as an example of the method for producing the aerosol-generating liquid Le, a method in which an extract obtained by dissolving tobacco leaves in a solvent is mixed with an aerosol base material will be specifically described.

In the above manufacturing method, first, an alkaline substance is applied to tobacco leaves (referred to as alkali treatment). As the alkaline substance used here, for example, a basic substance such as an aqueous potassium carbonate solution can be used.

Next, the alkali-treated tobacco leaves are heated at a predetermined temperature (for example, a temperature of 80° C. or higher and lower than 150° C.) (referred to as heat treatment). During this heat treatment, for example, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, or a substance selected from this group. Two or more kinds of substances are brought into contact with tobacco leaves.

By this heat treatment, released components (which include flavor components such as nicotine) released from the tobacco leaves into the gas phase are collected in a predetermined collection solvent. As the collection solvent, for example, one or more substances selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water can be used. As a result, a collection solvent containing flavor components such as nicotine (hereinafter also simply referred to as "flavor components") can be obtained (that is, flavor components can be extracted from tobacco leaves).

Note that the aerosol generation liquid Le may be produced without using the above-mentioned collection solvent. In this case, for example, after applying the above heat treatment to tobacco leaves that have been treated with alkali, the components released from the tobacco leaves into the gas phase can be condensed by cooling them using a condenser or the like. The flavor components may be extracted.

Additionally, the aerosol generation liquid Le may be produced without performing the alkali treatment described above. In this case, for example, one or more types selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water are added to tobacco leaves (tobacco leaves that have not been subjected to alkali treatment). Add substance. Next, the tobacco leaf to which the above substance has been added is heated, and the components released during heating are collected in a collection solvent or condensed using a condenser or the like. Flavor components can also be extracted by such a process.

Further, when producing the aerosol generation liquid Le, an aerosol in which one or more substances selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water is aerosolized, or The aerosol formed by two or more substances selected from this group is passed through tobacco leaves (tobacco leaves that have not been treated with alkali), and the aerosol that has passed through the tobacco leaves is captured in a collection solvent. You may collect them. Flavor components can also be extracted by such a process.

In addition, when producing the aerosol generation liquid Le, a process (hereinafter simply referred to as "amount of carbonized components that become carbonized when heated to 250 ° C.") that may be included in the flavor components extracted by the method described above is reduced. (also referred to as "reduction processing") may be performed. By reducing "the amount of carbonized components that become carbide when heated to 250° C.", adhesion of carbonized components to the load 40 can be effectively suppressed. As a result, occurrence of burnt on the load 40 can be effectively suppressed. Furthermore, since the carbonized components that become carbonized when heated to 250°C are mainly derived from tobacco materials such as tobacco leaves, the effects of the reduction treatment are particularly low in methods that use tobacco extract as a source of nicotine. is large.

The specific method for reducing the amount of carbonized components contained in the extracted flavor components is not particularly limited, but for example, by cooling the extracted flavor components, the precipitated components can be reduced. The amount of carbonized components contained in the extracted flavor components may be reduced by filtering with filter paper or the like. Alternatively, the amount of carbonized components contained in the extracted flavor components may be reduced by centrifuging the extracted flavor components with a centrifuge. Alternatively, the amount of carbonized components contained in the extracted flavor components may be reduced by using a reverse osmosis membrane (RO filter).

Here, since the tobacco extract contains components that can cause charring when heated (e.g., lipids, metal ions, sugars, or proteins), the tobacco extract is subjected to a concentration treatment to concentrate the tobacco extract components. It is preferable to remove substances that cause scorching using the following means. Note that even when tobacco extract is not used, it is preferable to subject the tobacco extract to concentration treatment if it contains a substance that causes scorching.

Next, a method for manufacturing the flavor molded body 60 will be explained. As described above, the flavor molded product 60 is a molded product that contains a non-tobacco base material and a flavor material, and contains a tobacco material with a small amount of flavor material (the content in the flavor molded product 60 is 10% by weight or less). The method for producing the flavor molded body 60 is not particularly limited, but for example, non-tobacco base materials such as ceramics, synthetic polymers, or pulp derived from plants other than tobacco plants (melts of non-tobacco base materials may also be used) and a flavoring material to obtain a mixture, and then molding the mixture into a predetermined shape by a method such as press molding, extrusion molding, injection molding, transfer molding, compression molding, or cast molding. good. Here, when the non-tobacco base material is a polymer, flavor molding into a predetermined shape is performed by dissolving the polymer in a solvent and evaporating the solvent by heating, etc., or by polymerizing a monomer, etc. It is also possible to adopt a method of obtaining a body. Furthermore, after obtaining a composite material in any solid shape containing a non-tobacco base material, the composite material may be processed into a predetermined shape by cutting, grinding, or the like. Alternatively, after forming the above-mentioned non-tobacco base material (which may be a melt of the non-tobacco base material) into a predetermined shape, flavor molding is performed by applying or spraying a flavor material onto the surface of the non-tobacco base material. The body 60 may be manufactured.

Note that when manufacturing the flavor molded body 60, the surface of the flavor molded body 60 may be coated with a coating material. Thereby, it is possible to manufacture the flavor molded object 60 in which the surface of the non-tobacco base material hardened into a predetermined shape is covered with the coating material.

For example, wax can be used as this coating material. Examples of this wax include Microcrystan WAX (model number: Hi-Mic-1080 or Hi-Mic-1090) manufactured by Nippon Seiro Co., Ltd., and water-dispersed ionomer (model number: Chemipearl S120) manufactured by Mitsui Chemicals. ), Hiwax (model number: 110P) manufactured by Mitsui Chemicals, etc. can be used.

Alternatively, corn protein can also be used as a coating material. A specific example of this is Zein (model number: Kobayashi Zein DP-N) manufactured by Kobayashi Perfume Co., Ltd. Alternatively, polyvinyl acetate can also be used as a coating material.

Furthermore, when manufacturing the flavor molded body 60, tobacco residue may be included in the non-tobacco base material. Furthermore, when obtaining a tobacco extract in the production of an aerosol generating liquid containing nicotine, it is preferable to use tobacco residue obtained in the extraction when obtaining the tobacco extract.

[Assembly process]
After the above preparation process is completed, in the assembly process related to step S20, the aerosol generation liquid Le is accommodated in the liquid storage part 50 of the atomization unit housing 120, and the flavor molded body 60, the wick 30, and the load 40 are placed in the air passage 20. Place each. Here, the wick 30 and the load 40 are arranged in the load passage section 22 of the atomization unit housing 120, and the flavor molded bodies 60 are arranged in each

upstream passage section

21a, 21b. At this time, the load 40 is arranged in such a manner that the aerosol generating liquid Le is introduced from the liquid storage section 50. For example, the wick 30 may be installed in the load passage section 22 so as to communicate with the inside of the liquid storage section 50, and the load 40 may be installed in the load passage section 22 in a state in which it is in contact with the wick 30. In this embodiment, in the assembly process, the flavor molded body 60 is placed at a location upstream in the air flow direction from the load 40 in the air passage 20, that is, at each

upstream passage portion

21a, 21b. Deploy. However, the flavor molded body 60 may be arranged in the downstream passage part 23 instead of the

upstream passage parts

21a, 21b, or the flavor molded body 60 can be arranged in both the

upstream passage parts

21a, 21b and the downstream passage part 23. You may.

According to the manufacturing method as described above, the atomization unit of the suction tool 10 can be suitably manufactured.

In addition, in this embodiment, the amount (mg) of carbonized components contained in 1 g of the aerosol generation liquid Le stored in the liquid storage part 50 is preferably 6 mg or less, and preferably 3 mg or less. It is more preferable.

According to this configuration, the amount of carbonized components adhering to the electrical load 40 can be suppressed as much as possible while enjoying the flavor of nicotine and the like. Thereby, it is possible to enjoy the flavor of nicotine and the like while suppressing the occurrence of burnt on the load 40 as much as possible.

Note that the "carbonized component" contained in 1 g of aerosol-generating liquid specifically refers to "component that becomes carbide when heated to 250°C." Specifically, the "carbonized component" refers to a component that does not become a carbide at a temperature below 250°C, but becomes a carbide when maintained at a temperature of 250°C for a predetermined period of time.

This "amount (mg) of carbonized components contained in 1 g of aerosol generating liquid" can be measured, for example, by the following method. First, a predetermined amount (g) of aerosol generation liquid Le is prepared. Next, this aerosol generation liquid Le is heated to 180° C. to volatilize the solvent (liquid component) contained in the aerosol generation liquid Le, thereby obtaining a “residue consisting of non-volatile components”. Next, the residue is carbonized by heating it to 250° C. to obtain a carbide. Next, the amount (mg) of this carbide is measured. By the above method, it is possible to measure the amount (mg) of carbide contained in a predetermined amount (g) of aerosol generation liquid Le, and based on this measurement value, the amount (mg) of carbide contained in 1 g of aerosol generation liquid ( That is, the amount (mg) of carbonized components can be calculated.

Next, the relationship between the amount of carbonized components contained in 1 g of aerosol generating liquid containing nicotine and the TPM reduction rate will be explained. Figure 6 shows the TPM reduction rate measured with respect to the amount of carbonized components contained in 1 g of extract when tobacco extract (hereinafter also simply referred to as "extract") was used as an aerosol generating liquid containing nicotine. It is a figure showing a result. The horizontal axis of FIG. 6 indicates the amount of carbonized components contained in 1 g of the extract, and the vertical axis indicates the TPM reduction rate ( _RTPM ) (%).

The TPM reduction rate (R _TPM :%) in FIG. 6 was measured by the following method. First, samples of a plurality of atomization units having different amounts of carbonized components contained in 1 g of extract liquid were prepared. Specifically, five samples (sample SA1 to sample SA5) were prepared as samples for the plurality of atomization units. These five samples were prepared by the following steps.

(Step 1)
To a tobacco material made of tobacco leaves, 20 (wt%) of potassium carbonate was added in terms of dry weight, and then heated and distilled. The distillation residue after this heating distillation treatment is immersed for 10 minutes in water that is 15 times the weight of the tobacco raw material before the heating distillation treatment, dehydrated in a dehydrator, and then dried in a drier to produce tobacco. A residue was obtained.

(Step 2)
Next, a portion of the tobacco residue obtained in Step 1 was washed with water to prepare tobacco residue containing a small amount of char.

(Step 3)
Next, 25 g of dipping liquid (propylene glycol 47.5 wt%, glycerin 47.5 wt%, water 5 wt%) as an extraction liquid was added to 5 g of the tobacco residue obtained in step 2, and the temperature of the dipping liquid was raised to 60%. It was left to stand at ℃. By varying the standing time (that is, the immersion time in the immersion liquid), the amount of carbonized components eluted into the immersion liquid (extract liquid) was varied.

Through the above steps, a plurality of samples with different amounts of carbonized components contained in 1 g of immersion liquid (extract liquid) were prepared.

Next, the multiple samples prepared in the above steps were subjected to automatic smoking using an automatic smoking machine (“Analytical Vaping Machine” manufactured by Borgwaldt) under “CRM (Coresta Recommended Method) 81 smoking conditions”. Ta. Incidentally, the smoking condition of CRM81 is that 55 cc of aerosol is inhaled over 3 seconds multiple times every 30 seconds.

The amount of total particulate matter captured by the Cambridge filter of the automatic smoking machine was then measured. Based on the measured amount of total particulate matter, the TPM reduction rate ( _RTPM ) was calculated using the following formula (1). The TPM reduction rate (R _TPM ) shown in FIG. 6 was measured by the above method.

R _TPM (%) = (1-TPM (201puff ~ 250puff) / TPM (1puff ~ 50puff)) x 100... (1)

Here, TPM (Total Particle Molecule) indicates the total particulate matter collected by the Cambridge filter of the automatic smoking machine. "TPM (1puff to 50puff)" in equation (1) indicates the amount of total particulate matter collected by the Cambridge filter from the 1st puff to the 50th puff of the automatic smoking machine. "TPM (201puff to 250puff)" in equation (1) indicates the amount of total particulate matter collected by the Cambridge filter from the 201st puff to the 250th puff of the automatic smoking machine.

In other words, the TPM reduction rate ( _RTPM ) in equation (1) is calculated as follows: "The amount of total particulate matter collected by the Cambridge filter from the 201st puff to the 250th puff of the automatic smoking machine It is calculated by subtracting the value divided by the total amount of particulate matter collected by the Cambridge filter from the 1st puff to the 50th puff from 1 and multiplying it by 100.

As can be seen from FIG. 6, there is a proportional relationship between the amount of carbonized components contained in 1 g of extract and the TPM reduction rate. As can be seen from samples SA1 to SA4 in FIG. 6, when the amount of carbonized components contained in 1 g of extract is 6 mg or less, the TPM reduction rate can be suppressed to 20% or less.

Next, a modification of the atomization unit 12 according to the first embodiment will be described. In addition, in the following modified examples and other embodiments, the same code|symbol may be attached|subjected about the same code|symbol as the embodiment mentioned above about the structure which corresponds, and description may be abbreviate|omitted suitably.

<Modification 1>
FIG. 7 is a longitudinal cross-sectional view of the atomization unit 12 according to Modification 1 of Embodiment 1. FIG. 8 is a cross-sectional view of the atomization unit 12 according to Modification 1 of Embodiment 1, and shows a cross section taken along line A2-A2 in FIG.

A plurality of rod-shaped flavor moldings 60 are arranged in parallel along the cross-sectional direction of each

upstream passage section

21a, 21b. In the example shown in FIGS. 7 and 8, each flavor molded object 60 has a solid cylindrical shape, and along each

upstream passage section

21a, 21b (that is, along the air flow direction), The axial direction of each flavor molded object 60 extends. In the example shown in FIG. 8, nine flavor molded bodies 60 are arranged in a pattern of 3 rows and 3 columns for each

upstream passage section

21a, 21b. The number of flavor molded bodies 60 and their arrangement pattern are not particularly limited.

As shown in FIG. 8, an air flow passage 61A through which air flows is formed between the flavor molded bodies 60 arranged in parallel in each

upstream passage portion

21a, 21b. According to this, when the air that has flowed into each of the

upstream passage sections

21a and 21b passes through the air flow passage 61A, the flavor components of the flavor material contained in the flavor molded body 60 can be suitably imparted to the air. I can do it.

Note that the reference numeral 25A shown in FIG. 7 is an air-permeable support material that supports the upstream end 601 of the flavor molded body 60. Reference numeral 25B is an air-permeable support material that supports the downstream end 602 of the flavor molded body 60. The upstream end and downstream end herein mean an upstream end and a downstream end with respect to the flow direction of air. The supporting

members

25A and 25B cooperate to support the upstream end 601 and downstream end 602 of each flavor molded object 60 while sandwiching them in the axial direction. Thereby, even when a plurality of flavor molded bodies 60 are arranged in each of the

upstream passage portions

21a and 21b, the plurality of flavor molded bodies 60 can be maintained in a regular position in an aligned state. Moreover, since the supporting

materials

25A and 25B have air permeability, it is possible to suppress the flow of air along the respective

upstream passage portions

21a and 21b from being obstructed. In addition, also in the flavor molded object 60 demonstrated in FIG.7 and FIG.8, 61 A of air flow paths as demonstrated in FIG. 4 may extend along an axial direction.

<Modification 2>
FIG. 9 is a longitudinal cross-sectional view of the atomization unit 12 according to the second modification of the first embodiment. FIG. 10 is a cross-sectional view of the atomization unit 12 according to the second modification of the first embodiment, and shows a cross section taken along the line A3-A3 in FIG.

A plurality of flavor molded bodies 60 each having a plate shape are arranged in each of the

upstream passage portions

21a and 21b. Each flavor molded body 60 extends along each

upstream passage section

21a, 21b (that is, along the flow direction of air). In the example shown in FIGS. 9 and 10, each flavor molded body 60 has an elongated flat plate shape along each

upstream passage section

21a, 21b, and has a cross section of each

upstream passage section

21a, 21b (air They are arranged side by side along a cross section perpendicular to the flow direction. More specifically, the upstream end 601 and downstream end 602 of each flavor molded body 60 are positioned and fixed in a state where they are sandwiched in the axial direction by the above-mentioned supporting

members

25A and 25B, and as a result, each flavor molded body 60 They are arranged side by side so as to face each other at intervals. A gap is formed between the flavor molded bodies 60 that are arranged to face each other, and an air flow path 61B is formed by this gap. Since the air flow passage 61B extends along each of the

upstream passages

21a and 21b (that is, along the air flow direction), the air flowing into each of the

upstream passages

21a and 21b flows through the air flow passage. When passing through 61B, the flavor component of the flavor material contained in the flavor molded body 60 can be suitably imparted to the air.

<Modification 3>
FIG. 11 is a longitudinal sectional view of the atomization unit 12 according to the third modification of the first embodiment. FIG. 12 is a cross-sectional view of the atomization unit 12 according to the third modification of the first embodiment, and shows a cross section taken along the line A4-A4 in FIG. 11.

A flavor molded body 60 having an overall bellows sheet shape is arranged in each

upstream passage section

21a, 21b. As shown in FIG. 12, the flavor molded body 60 having a bellows sheet shape includes a plurality of sheet portions (panel portions) 62 extending along the air flow direction in each

upstream passage portion

21a, 21b, and each sheet. It is configured to include a ridgeline portion 63 that connects the portions 62 to each other in a bellows shape and extends along the flow direction of air. In the flavor molded body 60 in the form of a bellows sheet as described above, an air flow path 61C through which air circulates is formed between the sheet parts 62 that are connected via the ridgeline part 63. The air flow passage 61C extends along each

upstream passage portion

21a, 21b (that is, along the air flow direction). Therefore, when the air that has flowed into each of the

upstream passage sections

21a and 21b passes through the air flow passage 61C, the flavor components of the flavor material contained in the flavor molded body 60 can be suitably imparted to the air.

Note that, as shown in FIG. 11, also in this modification, the upstream end 601 and downstream end 602 of the flavor molded body 60 are positioned and fixed by the

breathable support members

25A and 25B. Thereby, the sheet-shaped flavor molded body 60 can be positioned and held at a regular position without obstructing the flow of air along each of the

upstream passages

21a, 21b.

<Modification 4>
FIG. 13 is a cross-sectional view of the atomization unit 12 according to the fourth modification of the first embodiment. In the fourth modification, a large number of flavor molded bodies 60 in the form of strip-shaped sheet pieces are filled in each

upstream passage section

21a, 21b. For example, the flavor molded bodies 60 (rectangular sheet pieces) are arranged so that their longitudinal directions extend along the respective

upstream passages

21a and 21b (that is, along the air flow direction). , the upstream and downstream ends thereof may be positioned by supporting

members

25A and 25B as described in FIG. 11. In this modification, air flow passages 61D are formed by gaps between the flavor molded bodies 60 (rectangular sheet pieces). Therefore, when the air that has flowed into each of the

upstream passages

21a and 21b passes through the air flow passage 61D, the flavor components of the flavor material contained in the flavor molded body 60 can be suitably imparted to the air. Note that the strip sheet pieces serving as the flavor molded body 60 may be arranged randomly and filled without being aligned along the air passage 20 (each

upstream passage portion

21a, 21b).

<Modification 5>
FIG. 14 is a cross-sectional view of the atomization unit 12 according to the fifth modification of the first embodiment. The flavor molded body 60 of the atomization unit 12 according to the fifth modification has an air flow passage 61 as a through hole penetrating in the axial direction, and an air flow groove 610 as an air flow passage formed on the side surface (outer surface). It is different from the flavor molded body 60 described in FIGS. 2 to 4 in that it is In the embodiment shown in FIG. 14, the air circulation groove 610 in the flavor molded body 60 is a groove provided on the side surface (outer surface) of the flavor molded body 60 along the axial direction. It is formed from a front end (front end) 601 to a downstream end (rear end) 602. In this modification, air can be smoothly circulated through the air flow path 61 and the air flow groove 610, and the flavor components of the flavor material contained in the flavor molded body 60 can be suitably imparted to the air. can. In this modification, the number of air circulation grooves 610 provided on the side surface (outer surface) of the flavor molded body 60 is not particularly limited. However, as shown in FIG. 14, by forming a plurality of air circulation grooves 610 on the side surface (outer surface) of the flavor molded body 60, air circulation and flavor imparting to the air can be performed more efficiently. be able to. Further, in the flavor molded body 60 according to this modification, the air flow passage 61 that passes through the inside thereof in the axial direction may be omitted, and only the air flow groove 610 may be formed.

<Modification 6>
FIG. 15 is a schematic cross-sectional view of the atomization unit 12 according to the sixth modification of the first embodiment. Specifically, FIG. 15 schematically illustrates a cross section in the thickness direction of the main part of the atomization unit 12 according to this modification. The air passage 20 of the atomization unit 12 according to this modification has only one upstream passage part (only the upstream passage part 21a is provided), and the upstream passage part 21a is the atomization unit. The air passage 20 of the atomization unit 12 is mainly different from the air passage 20 of the atomization unit 12 described with reference to FIGS. 2 and 3 in that it is disposed adjacent to the liquid storage section 50 in the thickness direction of the atomization unit 12 .

In this modification, the flavor molded body 60 having an air flow passage 61 formed therethrough in the longitudinal axis direction is disposed in the upstream passage portion 21a, as described in FIG. 4. Also in this modification, the same effects as the atomization unit 12 and the suction tool 10 including the atomization unit 12 according to the first embodiment described above can be achieved. In addition, in the atomization unit 12 according to this modification, the various flavor molded bodies 60 described in Modifications 1 to 5 may be applied instead of the flavor molded body 60 shown in FIG.

<Modification 7>
FIG. 16 is a longitudinal sectional view of the atomization unit 12 according to the seventh modification of the first embodiment. FIG. 17 is a cross-sectional view of the atomization unit 12 according to Modification Example 7 of Embodiment 1, and shows a cross section taken along line A5-A5 in FIG. 16.

The atomization unit 12 according to this modification differs from the embodiments described above in that flavor molded bodies 60 are disposed in both the

upstream passage sections

21a, 21b and the downstream passage section 23. The flavor molded body 60 disposed in the downstream passage section 23 has, for example, a cylindrical shape, and an air flow passage 61 is formed therethrough along the axial direction.

Here, air containing the aerosol generated in the load passage section 22 (atomization section) flows into the downstream passage section 23. After the air containing the aerosol flows through the air flow passage 61 of the flavor molded body 60 disposed in the load passage section 22, it is finally sucked into the user via the discharge port 13. According to this modification, even when air containing aerosol flows through the air flow passage 61 of the flavor molded body 60 disposed in the load passage section 22, the flavor material contained in the flavor molded body 60 is used to circulate the air. Can add flavor. Therefore, it becomes possible to more fully impart flavor to the aerosol generated by the atomization unit 12.

Note that the various flavor molded bodies 60 described in Modifications 1 to 5 can be applied to the flavor molded body 60 disposed in the load passage section 22 of the atomization unit 12. Further, the flavor molded body 60 may be positioned and fixed at a proper position in the load passage section 22 using the above-mentioned

support materials

25A and 25B having air permeability. In addition, in this modification, an example in which the flavor molded body 60 is arranged in both the

upstream passage parts

21a, 21b and the downstream passage part 23 in the atomization unit 12 has been described. The flavor molded body 60 may be arranged only in the downstream passage section 23 without installing the flavor molded body 60 in the downstream passage section 23 .

<Embodiment 2>
Next, the atomization unit 12 according to the second embodiment will be explained. FIG. 18 is a longitudinal cross-sectional view of the atomization unit 12 according to the second embodiment. In the atomization unit 12 according to the second embodiment, the air passage 20 does not have an upstream passage part, and the flavor molded body 60 is filled in the downstream passage part 23.

In the atomization unit 12 according to the second embodiment, the wall 71c of the load passage section 22 is provided with an inlet 72e, which is a hole for introducing air into the atomization unit housing 120 from the outside. . In this embodiment, for example, the housing of the power supply unit 11 in the suction tool 10 (power supply unit housing) may also have an inflow port formed therein for taking in air from the outside. Then, an internal passage is formed inside the power supply unit housing to communicate the inflow port on the power supply unit housing side and the inflow port 72e on the atomization unit housing 120 side, and the air supplied through the internal passage is transferred to the inflow port 72e. It may also be incorporated into the atomization unit housing 120 from within the atomization unit housing 120. Air taken into the atomization unit housing 120 from the inflow port 72e flows into the load passage section 22, passes through the load passage section 22, passes through the downstream passage section 23, and is discharged from the discharge port 13.

The downstream passage section 23 according to the second embodiment has an enlarged diameter section 24a. The enlarged diameter portion 24a is provided in a part of the downstream passage portion 23, and is a portion whose diameter is enlarged more than “the other portion 24b (that is, the non-expanded diameter portion)” of the downstream passage portion 23. Specifically, the downstream passage section 23 according to the second embodiment is entirely disposed inside the liquid storage section 50. The enlarged diameter portion 24a is disposed in the middle of the downstream passage portion 23. Specifically, another part 24b is arranged upstream of the enlarged diameter part 24a, and another part 24b is arranged downstream of the enlarged diameter part 24a (that is, the enlarged diameter part 24a is ).

The flavor molded body 60 according to the second embodiment is arranged in this enlarged diameter portion 24a. Note that the flavor molded body 60 disposed in the enlarged diameter portion 24a is formed so that an air flow passage 61 passes through it along the flow direction of air, as shown in FIG. Therefore, when the air containing the aerosol passes through the air flow path 61 of the flavor molded body 60, the flavor material contained in the flavor molded body 60 imparts flavor. Note that the number of air flow passages 61 formed in the flavor molded body 60 is not particularly limited. In the example shown in FIG. 18, a plurality of air flow passages 61 are formed in the flavor molded body 60, but a single air flow passage 61 may be formed. Also in this embodiment, the various flavor molded bodies 60 described in the above-mentioned Modifications 1 to 5 may be applied.

As described above, this embodiment can also achieve the same effects as the atomization unit 12 according to the first embodiment. Specifically, in the second embodiment as well, the flavor component contained in the aerosol generation liquid Le and the flavor component contained in the flavor molded body 60 can be added to the air passing through the air passage 20. As a result, the aerosol generated by the atomization unit 12 can be sufficiently flavored. Therefore, a deep flavor that cannot be expressed only by the flavor components contained in the aerosol generation liquid Le or the flavor components contained in the flavor molded body 60 can be imparted to the aerosol.

Further, according to the present embodiment, since the flavor molded body 60 is filled in the enlarged diameter portion 24a, the flavor molded body 60 is It is possible to keep the ventilation resistance value of air passing through (an index indicating how difficult it is for air to pass through) to a low level.

Further, according to the present embodiment, since the air whose temperature has increased by passing through the load 40 passes through the flavor molded body 60, the flavor components of tobacco leaves contained in the flavor molded body 60 are more effectively absorbed downstream. It is possible to add a flavor component to the air flowing through the passage section 23 (that is, it is possible to effectively impart a flavor component to air containing aerosol).

Note that in the example shown in FIG. 18, the downstream passage section 23 is entirely disposed inside the liquid storage section 50, but it is not limited to this embodiment. For example, the downstream passage section 23 may be arranged adjacent to the liquid storage section 50 in the thickness direction of the atomization unit 12.

<Embodiment 3>
Next, the atomization unit 12 according to the third embodiment will be explained. FIG. 19 is a longitudinal cross-sectional view of the atomization unit 12 according to the third embodiment. The atomization unit 12 according to the third embodiment is provided such that the "other part 24b" of the downstream passage section 23 penetrates the inside of the liquid storage part 50, and the enlarged diameter part 24a is connected to this "other part 24b". This embodiment is different from the second embodiment described above in that it is disposed downstream of "24b" in the air flow direction. That is, the downstream passage section 23 according to the third embodiment has another section 24b on the upstream side, and has an enlarged diameter section 24a on the downstream side of this other section 24b. Note that the enlarged diameter portion 24a according to the present embodiment also has a function as a downstream extending portion that extends downstream of the liquid storage portion 50 in the air flow direction.

As shown in FIG. 19, the flavor molded body 60 is formed so that an air flow passage 61 passes through it along the flow direction of air. Further, as illustrated in the partially enlarged view of FIG. 19, "at least one groove 24c ( In FIG. 19, a plurality of grooves 24c are illustrated. In addition, as shown in a partially enlarged view (perspective view indicated by "A1") in FIG. The peripheral wall surface is provided with "at least one groove 24c (a plurality of grooves 24c are illustrated in FIG. 19)" extending in the X-axis direction. According to such a groove 24c, the air passing through the enlarged diameter portion 24a can be made to flow so as to be diffused in the cross-sectional direction of the enlarged diameter portion 24a.

Further, in the flavor molded body 60 according to the present embodiment, a plurality of air flow passages 61 are arranged side by side in its cross-sectional direction (direction perpendicular to the flow direction of air flowing through the air flow passages 61). Therefore, the air diffused in the cross-sectional direction of the enlarged diameter portion 24a by the action of the groove 24c formed on the inner circumferential wall surface of the enlarged diameter portion 24a described above is transferred from the upstream end 601 of the flavor molded body 60 to each air flow path 61. can be efficiently guided. Therefore, the flavor material contained in the flavor molded product 60 can efficiently impart flavor to the air containing the aerosol passing through the air flow path 61 of the flavor molded product 60. However, the number of air flow passages 61 formed in the flavor molded body 60 is not particularly limited.

Further, as shown in FIG. 19, the downstream end 602 of the flavor molded body 60 is supported by a support material 25B having air permeability. A supporting material 25B having air permeability is interposed between the downstream end 602 and the downstream end 602. Thereby, the air flowing out from the downstream end of each air flow path 61 in the flavor molded body 60 can be smoothly guided to the discharge port 13 through the breathable support material 25B. Note that, also in this embodiment, the various flavor molded bodies 60 described in the above-mentioned Modifications 1 to 5 may be applied.

Further, the diameter of the enlarged diameter portion 24a according to the present embodiment is enlarged so that it has the same width and thickness as the width and thickness of the liquid storage portion 50. However, the shape of the enlarged diameter portion 24a is not limited to this.

Also in this embodiment, the same effects as the atomization unit 12 according to the second embodiment described above can be achieved.

Further, according to the present embodiment, since the enlarged diameter portion 24a is not disposed inside the liquid storage portion 50 (or is not adjacent to the liquid storage portion 50 in the thickness direction of the atomization unit 12), the enlarged diameter portion 24a It is easy to adjust the cross-sectional area of the diameter portion 24a, the length of the enlarged diameter portion 24a in the air flow direction (the length in the Z direction), etc. Thereby, the ventilation resistance value of air passing through the flavor molded body 60 can be easily adjusted to a desired value.

Further, the other portion 24b of the downstream passage portion 23 is not limited to the configuration that penetrates the inside of the liquid storage portion 50 as illustrated in FIG. 19. To give another example, the other portion 24b may be provided adjacent to the liquid storage section 50 in the thickness direction of the atomization unit 12.

Further, the groove 24c provided in the inner wall surface of the enlarged diameter portion 24a according to the present embodiment may be formed in the enlarged diameter portion 24a of the atomization unit 12 according to the second embodiment described above.

Although the embodiments and modified examples of the present invention have been described in detail above, the present invention is not limited to such specific embodiments and modified examples, and within the scope of the gist of the present invention as described in the claims. , various modifications and changes are possible. Moreover, each aspect disclosed in this embodiment can be freely combined with other aspects disclosed in this embodiment.

10... Suction tool 11... Power supply unit 12... Atomization unit 20...

Air passages

21a, 21b... Upstream passage section 22... Load passage section 23... Downstream passage section 30 ...Wick 40...Load 50...Liquid storage section 60...Flavored molded body Le...Aerosol generation liquid

Claims

a liquid storage section that stores an aerosol-generating liquid containing nicotine;
an electrical load disposed in an air passage through which air passes, into which the aerosol-generating liquid in the liquid storage section is introduced, and which atomizes the introduced aerosol-generating liquid to generate an aerosol;
A flavor molded body disposed in at least one of a location upstream and downstream of the load in the air flow direction in the air passage;
Equipped with
The flavor molded body includes a non-tobacco base material and a flavor material, and the flavor material contains a tobacco material and the content of the tobacco material in the flavor molded body is 10% by weight or less.
Atomization unit of suction tool.
The air passage includes a load passage section in which the load is arranged, an upstream passage section that communicates with the load passage section and is arranged upstream of the load passage section in the air flow direction, and the load passage section. a downstream passage section that communicates with the load passage section and is disposed downstream of the load passage section in the air flow direction;
The atomization unit of the suction tool according to claim 1, wherein the flavor molded body is disposed in at least one of the upstream passage section and the downstream passage section.
The atomization unit of the suction tool according to claim 2, wherein the flavor molded body is disposed in both the upstream passage section and the downstream passage section.
The flavor molded body has a rod shape extending along the flow direction of air in the air passage, and has air extending in the axial direction of the flavor molded body at least on either the inside or the side surface thereof. It has an air flow path that circulates the
The atomization unit of the suction tool according to any one of claims 1 to 3.
The flavor molded body has a rod shape extending along the flow direction of air in the air passage,
A plurality of flavor molded bodies are arranged in parallel along a cross-sectional direction perpendicular to the flow direction of air in the air passage,
An air flow path for circulating air is formed between the flavor molded bodies arranged in parallel.
The atomization unit of the suction tool according to any one of claims 1 to 4.
The flavor molded body has a bellows sheet shape as a whole, and has a plurality of sheet portions extending along the flow direction of air in the air passage, and connecting the sheet portions to each other in a bellows shape. A ridgeline extending along the flow direction of the air,
An air flow path for circulating air is formed between the sheet parts connected via the ridge line part,
The atomization unit of the suction tool according to any one of claims 1 to 3.
The flavor molded body has a plate shape extending along the flow direction of air in the air passage,
A plurality of flavor molded bodies are arranged in a row so as to face each other at intervals along a cross section perpendicular to the flow direction of the air in the air passage,
An air flow path for circulating air is formed between the flavor molded bodies arranged oppositely,
The atomization unit of the suction tool according to any one of claims 1 to 3.
The atomization unit according to any one of claims 1 to 7,
a power supply unit having a power supply that supplies power to the load, and to which the atomization unit is detachable;
A suction device equipped with.
A method for manufacturing an atomization unit of a suction tool, the method comprising:
an atomizing unit housing in which a liquid storage part and an air passage are formed; an aerosol generating liquid containing nicotine; a flavor molding containing a non-tobacco base material and a flavoring material; and atomizing the aerosol generating liquid to produce an aerosol. an electrical load to be generated; a preparation process for preparing;
an assembling step of accommodating the aerosol generating liquid in the liquid accommodating section and arranging the flavor molded body and the load in the air passage;
has
The flavor material contains a tobacco material, and the content of the tobacco material in the flavor molded body is 10% by weight or less,
In the assembly process,
The load is arranged in such a manner that the aerosol generating liquid is introduced from the liquid storage part, and
arranging the flavor molded body at at least one of a location upstream and a location downstream of the load in the air flow direction;
A method for manufacturing an atomizing unit of a suction tool.