WO2023112188A1

WO2023112188A1 - Tobacco molded article, atomization unit for inhalation device, inhalation device, and manufacturing method for atomization unit for inhalation device

Info

Publication number: WO2023112188A1
Application number: PCT/JP2021/046216
Authority: WO
Inventors: 光史松本; 雄史新川; 貴久工藤; 友一渡辺
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-12-15
Filing date: 2021-12-15
Publication date: 2023-06-22

Abstract

A tobacco molded article (60) contains solidified tobacco leaves (61) covered by a cover (62).

Description

TOBACCO MOLDED PRODUCT, ATOMIZING UNIT FOR SUCTION DEVICE, SUCTION DEVICE, AND METHOD FOR MANUFACTURING ATOMIZATION UNIT FOR SUCTION DEVICE

The present invention relates to a tobacco molded article, an atomizing unit for a suction tool, a suction tool, and a method for manufacturing an atomizing unit for a suction tool.

Conventionally, as a non-combustion heating type suction tool, there is a liquid storage part that stores a predetermined liquid, and an electric load that introduces the liquid in the liquid storage part and atomizes the introduced liquid to generate an aerosol. and , wherein powder of tobacco leaves is dispersed in the liquid of the liquid container (see, for example, Patent Document 1).

Patent document 2 and patent document 3 can be cited as other prior art documents. Patent Literature 2 discloses a basic configuration of a non-combustion heating suction tool. Patent Document 3 discloses information on tobacco leaf extracts.

International Publication No. 2019/211332 Japanese Patent Application Laid-Open No. 2020-141705 WO2015/129679

In the case of a conventional suction tool in which tobacco leaves or the like are contained in the liquid in the liquid storage portion, as exemplified in the above-mentioned Patent Document 1, the tobacco leaves swell and the tobacco leaves and the like adhere to the load, deteriorating the load. or the amount of liquid in the liquid container that can be used for suction is reduced. In this regard, the prior art has room for improvement.

The present invention has been made in view of the above, and one of the objects thereof is to provide a technique capable of suppressing the swelling of tobacco raw materials such as tobacco leaves.

(Aspect 1)
To achieve the above object, a tobacco molded article according to one aspect of the present invention includes hardened tobacco material covered with a cover.

According to this aspect, the cover prevents swelling of the tobacco raw material such as tobacco leaves, so swelling of the tobacco raw material can be suppressed. This can prevent the tobacco material from adhering to the load and deteriorating the load. In addition, although the liquid contained in the swollen tobacco raw material tends to be difficult to be discharged from the liquid storage part, the above aspect prevents this and reduces the amount of the liquid in the liquid storage part that can be used for suction. Decrease can be suppressed.

(Aspect 2)
In aspect 1 above, the cover may contain at least one of plant fibers, animal fibers, chemical fibers, and inorganic fibers.

According to this aspect, it is possible to provide a tobacco molded article including a cover that takes advantage of fiber characteristics such as flexibility and workability.

(Aspect 3)
In said

aspect

1 or 2, the said cover may contain paper.

According to this aspect, the tobacco molded article can be coated efficiently and at low cost.

(Aspect 4)
In above aspect 3, the paper may include at least one of non-woven fabric, plain paper, and water-repellent paper.

According to this aspect, the tobacco molded article can be coated more efficiently and at low cost.

(Aspect 5)
In the above aspects 1 to 4, the entire tobacco molded article may be covered with the cover.

According to this aspect, swelling of the tobacco raw material can be suppressed more reliably. As a result, it is possible to more reliably prevent the tobacco material from adhering to the load and deteriorating the load. In addition, it is possible to more reliably suppress a decrease in the amount of liquid in the liquid storage section that can be used for suction.

(Aspect 6)
Further, in order to achieve the above object, an atomizing unit for a suction device according to one aspect of the present invention includes a liquid storage portion for storing an atomizing liquid, and the above-described aspect 1 liquid storage portion stored in the liquid storage portion. 5, and an electric load into which the atomizing liquid is introduced into the liquid containing portion and atomizes the introduced atomizing liquid to generate an aerosol. .

According to this aspect, by suppressing the swelling of the tobacco material, it is possible to prevent the tobacco material from adhering to the load and deteriorating the load. It is possible to provide an atomizing unit for a suction tool that can suppress a decrease in the amount of the suction tool.

(Aspect 7)
Moreover, in the sixth aspect described above, the liquid containing portion contains the atomizing liquid that contacts the tobacco molded article.

According to this aspect, the flavor can be adjusted by atomizing the components contained in the tobacco molded body through the liquid. In addition, in the case of providing a suction device containing the liquid for atomization in advance, the user does not need to introduce the liquid for atomization into the suction device by himself/herself.

(Aspect 8)
In above aspect 6 or 7, the atomizing liquid may further contain a tobacco extract.

According to this aspect, the flavor can be adjusted by atomizing the components contained in the tobacco extract via the atomizing liquid.

(Aspect 9)
Moreover, in order to achieve the above object, a suction tool according to one aspect of the present invention includes the atomization unit for a suction tool according to any one of aspects 6 to 8 above.

According to this aspect, by suppressing the swelling of the tobacco material, it is possible to prevent the tobacco material from adhering to the load and deteriorating the load. It is possible to provide a suction tool capable of suppressing a decrease in the amount of liquid.

(Mode 10)
In order to achieve the above object, a method for manufacturing an atomizing unit for a suction device according to one aspect of the present invention includes a forming step of solidifying tobacco raw materials to form a tobacco molded body, and covering the tobacco molded body with a cover. and an assembling step of arranging the tobacco molded body coated in the coating step in the liquid container.

(Aspect 11)
In the above aspect 10, the liquid containing part contains at least one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water. It may further include a housing step of housing in the part.

According to this aspect, the substance serves as a suitable solvent for the flavor component, so the flavor can be adjusted efficiently. In addition, in the case of providing a suction device containing the liquid for atomization in advance, the user does not need to introduce the liquid for atomization into the suction device by himself/herself.

According to the aspect of the present invention, swelling of tobacco raw materials such as tobacco leaves can be suppressed.

1 is a perspective view schematically showing the appearance of a suction tool according to Embodiment 1. FIG. FIG. 3 is a schematic cross-sectional view showing the main part of the atomization unit of the suction tool according to Embodiment 1; FIG. 3 is a diagram schematically showing a cross section taken along line A1-A1 of FIG. 2; 1 is a schematic perspective view of a molded body according to Embodiment 1. FIG. FIG. 4B is a diagram schematically showing a cross section taken along the line AA of FIG. 4A; FIG. 4 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 extract. FIG. 10 is a flowchart for explaining a manufacturing method according to Embodiment 2; FIG. 10 is a flowchart for explaining a manufacturing method according to Modification 1 of Embodiment 2; FIG. 11 is a flowchart for explaining a manufacturing method according to Modification 2 of Embodiment 2;

(Embodiment 1)
Hereinafter, a suction tool 10 according to Embodiment 1 of the present invention will be described with reference to the drawings. It should be noted that the drawings of the present application are schematically illustrated in order to facilitate understanding of the features of the embodiments, and the dimensional ratios and the like of each component are not necessarily the same as the actual ones. In addition, XYZ orthogonal coordinates are illustrated in the drawings of the present application as needed.

FIG. 1 is a perspective view schematically showing the appearance of a suction tool 10 according to this embodiment. The suction tool 10 according to the present embodiment is a non-combustion heating suction tool, specifically, a non-combustion heating electronic cigarette.

As an example, the suction tool 10 according to this embodiment extends in the direction of the central axis CL of the suction tool 10 . Specifically, for example, the suction tool 10 has a “longitudinal direction (the direction of the central axis CL),” a “width direction” perpendicular to the longitudinal direction, and a “thickness direction” perpendicular to the longitudinal direction and the width direction. , and has an external shape. The dimensions of the suction tool 10 in the longitudinal direction, width direction, and thickness direction decrease in this order. In this embodiment, of the XYZ orthogonal coordinates, the Z-axis direction (Z direction or -Z direction) corresponds to the longitudinal direction, and the X-axis direction (X direction or -X direction) corresponds to It 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 supply, a control device, and the like 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.

The atomization unit 12 is provided with a discharge port 13 for discharging air (that is, air). Air containing aerosol is discharged from this discharge port 13 . When using the suction tool 10 , the user of the suction tool 10 can suck the air discharged from the discharge port 13 .

The power supply unit 11 is provided with a sensor that outputs 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 sucking air, the sensor senses the start of sucking air and notifies the control device, which starts energizing the load 40 of the atomization unit 12, which will be described later. Further, when the user finishes sucking air, the sensor senses the finish of sucking air and informs the control device, and the control device stops energizing the load 40 .

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

It should be noted that the configuration of the power supply unit 11 as described above is the same as that of the power supply unit of a known suction device as exemplified in Patent Document 2, for example, so further detailed description will be omitted.

FIG. 2 is a schematic cross-sectional view showing the main part of the atomization unit 12 of the suction tool 10. FIG. Specifically, FIG. 2 schematically shows a 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 along line A1-A1 of FIG. 2 (that is, a cross section taken along a plane normal to the center axis CL). The atomization unit 12 will be described with reference to FIGS. 2 and 3. FIG.

The atomization unit 12 includes a plurality of walls (walls 70a to 70g) extending in the longitudinal direction (the direction of the central axis CL), and a plurality of walls (walls 71a to 70g) extending in the width direction. ˜wall portion 71c). The atomization unit 12 also includes an air passage 20 , a wick 30 , an electrical load 40 , a liquid container 50 and a molding 60 .

The air passage 20 is a passage through which air passes when the user inhales air (that is, inhales aerosol). The air passage 20 according to this embodiment includes an upstream passage portion, a load passage portion 22 and a downstream passage portion 23 . As an example, the upstream passage portion according to the present embodiment includes a plurality of upstream passage portions, specifically, an upstream passage portion 21a (“first upstream passage portion”) and an upstream passage portion 21b. (“second upstream passage portion”).

The

upstream passage portions

21a and 21b are arranged upstream of the load passage portion 22 (upstream in the direction of air flow). Downstream end portions of the

upstream passage portions

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

Specifically, the upstream passage portion 21a according to the present embodiment is provided in a region surrounded by the wall portion 70a, the wall portion 70b, the wall portion 70e, the wall portion 70f, the wall portion 71a, and the wall portion 71b. there is The upstream passage portion 21b is provided in a region 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 portion 22 is provided in a region surrounded by the wall portion 70a, the wall portion 70d, the wall portion 70e, the wall portion 70f, the wall portion 71b, and the wall portion 71c. The downstream passage portion 23 is provided in a region surrounded by the tubular wall portion 70g.

A hole 72a and a hole 72b are provided in the wall portion 71a. Air flows into the upstream passage portion 21a through the hole 72a, and flows into the upstream passage portion 21b through the hole 72b. Further, holes 72c and 72d are provided in the wall portion 71b. Air passing through the upstream passage portion 21a flows into the load passage portion 22 through the hole 72c, and air passing through the upstream passage portion 21b flows into the load passage portion 22 through the hole 72d.

In this embodiment, the direction of air flow in the

upstream passage portions

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

upstream passage portions

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

2 and 3, the upstream passage portion 21a and the upstream passage portion 21b according to the present embodiment sandwich the liquid storage portion 50 between the upstream passage portion 21a and the upstream passage portion 21b. As shown in FIG.

Specifically, as shown in FIG. 3, the upstream passage portion 21a according to the present embodiment is a cross-sectional view cut along a cut plane normal to the central axis CL, and the liquid storage portion 50 is sandwiched between the upstream passage portions 21a. side (-X direction side). On the other hand, the upstream passage portion 21b is arranged on the other side (the side in the X direction) across the liquid storage portion 50 in this cross-sectional view. In other words, the upstream passage portion 21 a is arranged on one side of the liquid containing portion 50 in the width direction of the suction tool 10 , and the upstream passage portion 21 b is arranged on the side of the liquid containing portion 50 in the width direction of the suction tool 10 . located on the other side.

The wick 30 is a member for introducing the liquid in the liquid storage section 50 to the load 40 in the load passage section 22 . The specific configuration of the wick 30 is not particularly limited as long as it has such a function. 50 liquids are introduced to the load 40; Note that the cross section of the molded body 60 in FIG. 3 is a rough shape, and for details, see FIG. 4B described later.

The load 40 is an electrical load for introducing the liquid in the liquid containing portion 50 and atomizing the introduced liquid to generate an aerosol. A 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 can 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 heating type heater, or the like can be used. In this embodiment, a heating resistor is used as an example of this heater. Moreover, in this embodiment, the heater as the load 40 has a coil shape. That is, the load 40 according to this embodiment is a so-called coil heater. This coil heater is wound around a wick 30 .

Further, the load 40 according to the present embodiment is arranged in the wick 30 portion inside the load passage portion 22 as an example. The load 40 is electrically connected to the power supply and the control device of the power supply unit 11 described above, and heats up when electricity from the power supply is supplied to the load 40 (that is, heats up when energized). Also, the operation of the load 40 is controlled by a control device. The load 40 heats the liquid in the liquid containing portion 50 introduced into the load 40 through the wick 30 to atomize the liquid to generate an aerosol.

The configurations of the wick 30 and the load 40 are the same as the wick and the load used in a known suction tool as exemplified in Patent Document 2, for example, so further detailed description will be omitted.

The liquid storage part 50 is a part for storing a liquid such as a predetermined solvent or tobacco leaf extract (Le), which will be described later. The liquid storage portion 50 according to this embodiment is provided in a region surrounded by the wall portion 70b, the wall portion 70c, the wall portion 70e, the wall portion 70f, the wall portion 71a, and the wall portion 71b. Further, in the present embodiment, the downstream passage portion 23 described above is provided so as to penetrate the liquid storage portion 50 in the direction of the central axis CL. The liquid may be provided to the user in a state in which the liquid is stored in the liquid storage portion 50, or the liquid may be provided to the user in a state in which the liquid is not stored in the liquid storage portion 50, and the user introduces the liquid. It is good also as a structure to use.

In the present embodiment, as an example of the liquid contained in the liquid containing portion 50, tobacco leaf extract (Le) containing tobacco leaf flavor components is used as a predetermined solvent. Although the specific type of the predetermined solvent is not particularly limited, for example, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, Alternatively, a liquid containing two or more substances selected from this group can be used. In this embodiment, glycerin and propylene glycol are used as examples of the predetermined solvent.

Specific examples of flavor components of tobacco leaves include nicotine and neophytadiene.

As shown in FIGS. 2 and 3, two molded bodies 60 according to the present embodiment are arranged inside the extract liquid of the liquid storage section 50. As shown in FIG. However, the number of molded bodies 60 is not limited to this, and may be one or three or more.

FIG. 4A is a schematic perspective view of the molded body 60, and FIG. 4B is a diagram schematically showing the AA cross section of FIG. 4A, that is, the cross section perpendicular to the longitudinal direction of the molded body 60. The molded body 60 includes a molded body body 61 and a cover 62 (Fig. 4B). The compact main body 61 is formed by hardening tobacco leaves into a predetermined shape.

The shape of the molded body 60 is not particularly limited, and may be, for example, a rod-like shape extending in a predetermined direction (that is, a shape whose length is longer than its width), or a cubic shape (having sides of the same length). ), or a sheet shape, or any other shape.

The shape of the molded body 60 according to the present embodiment is rod-like as an example. Specifically, the rod-shaped molded body 60 according to the present embodiment has, as an example, a rod-shaped polyhedron shape, and as an example, has a columnar shape with a circular cross section. Note that the cross-sectional shape of the molded body 60 is not limited to a circle, and other examples include polygons (triangles, quadrilaterals, pentagons, or polygons having 6 or more corners). may When a sheet-shaped molded body 60 is used, specifically, a paper sheet of tobacco leaves, a cast sheet of tobacco leaves, a rolled sheet of tobacco leaves, or the like can be used as the molded body 61 . . The shape of the molded body 61 can also be appropriately selected in the same manner as the molded body 60 .

In the present embodiment, the density (mass per unit volume) of the compact body 61 is, for example, 1100 mg/cm ³ or more and 1450 mg/cm ³ or less. However, the density of the compact body 61 is not limited to this, and may be less than 1100 mg/cm ³ or greater than 1450 mg/cm ³ .

The material of the cover 62 is not particularly limited as long as it can suppress swelling of the molded body 61 as described later. The cover 62 can contain plant, animal, chemical or inorganic fibers. Cover 62 may include mixtures of any two or more of these. By including these fibers in the cover 62, it is possible to provide the molded article 60 that takes advantage of the properties of the fibers such as flexibility and workability. Chemical fibers or inorganic fibers such as glass fibers, ceramic fibers or synthetic resin fibers can be used for the cover 62 . Note that the cover 62 may include a metal layer.

The cover 62 preferably contains paper. The term "paper" as used herein refers to a material produced by agglutinating plant or other fibers, and includes synthetic paper produced using a synthetic polymer and a material blended with a fibrous inorganic material. The paper used for the cover 62 can include at least one of non-woven fabric, plain paper, and water-repellent paper that has undergone a water-repellent finish. These papers have excellent flexibility and workability, and are readily available at low cost.

In the following embodiments, the term "non-woven fabric" refers to fabric processed into a fabric without weaving fibers. Nonwoven fabrics are fabrics formed by, for example, bonding or entangling fibers by thermal, mechanical or chemical action.

In the following embodiments, "plain paper" is paper whose main component is pulp. Plain paper is made from wood pulp, such as softwood or hardwood pulp, and mixed with non-wood pulp, such as flax, hemp, sisal or esparto, which are commonly used in tobacco wrapping paper. and obtained by manufacturing. Plain paper shall be manufactured using chemical pulp, ground pulp, chemi-grand pulp or thermomechanical pulp obtained by kraft cooking method, acid/neutral/alkaline sulfite cooking method or soda salt cooking method as raw materials. can be done. As the plain paper, the wrapping paper used in cigarettes or the paper used in tipping paper may be used.

The method of manufacturing plain paper is not particularly limited, and for example, a known method can be used. The above pulp can be used to produce plain paper by adjusting the texture and making it uniform in the papermaking process carried out by a fourdrinier paper machine, a cylinder paper machine, a round and short combined paper machine, or the like. If necessary, a wet strength agent may be added to impart water resistance to plain paper, or a sizing agent may be added to adjust the printing quality of plain paper. Furthermore, in the production of plain paper, internal additives for papermaking such as aluminum sulfate, various anionic, cationic, nonionic or amphoteric retention improvers, drainage improvers, and paper strength enhancers Alternatively, papermaking additives such as dyes, pH modifiers, defoamers, pitch control agents, or slime control agents can be added. The basis weight of the base paper is, for example, usually 20 gsm (grams per square meter) or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, more preferably 45 gsm or less.

The cover 62 suppresses swelling of the molded body body 61 . Accordingly, it is possible to prevent the tobacco leaves contained in the molded article 60 from being dispersed in the liquid due to the molded article 60 cracking or collapsing due to swelling. In addition, it is possible to prevent tobacco leaves from adhering to the load and deteriorating the load due to dispersion. It is preferable for the cover 62 to cover the entire compact body 61 in order to enhance the effect of preventing swelling of the tobacco leaves contained in the compact body 61 . The cover 62 is preferably made of paper that covers the entire molded body 61 . However, the shape of the cover 62 is not particularly limited as long as it can cover at least a portion of the molded body body 61 . For example, the cover 62 may have a cylindrical shape and may be arranged so as to cover the central portion of the molded body 61 or the like. Alternatively, the cover 62 may be cylindrical with one of the openings closed and may be arranged at the end of the molded body 61 . It should be noted that the material such as the non-woven fabric forming the cover 62 may carry the liquid extract.

In addition, specific values of the width (that is, the outer diameter) (W), which is the length in the lateral direction of the molded body 60, and the total length (L), which is the length in the longitudinal direction of the molded body 60, are particularly limited. An example of numerical values is as follows. That is, as the width (W) of the molded body 60, a value selected from a range of, for example, 2 mm or more and 20 mm or less can be used. As the total length (L) of the molded body 60, a value selected from the range of, for example, 5 mm or more and 50 mm or less can be used. However, these values are merely examples of the width (W) and the total length (L) of the molded body 60, and the width (W) and the total length (L) of the molded body 60 are suitable for the size of the suction tool 10. value should be set.

The suction using the suction tool 10 is performed as follows. First, when the user starts sucking air, the air passes through the

upstream passage portions

21 a and 21 b of the air passage 20 and flows into the load passage portion 22 . Aerosol generated in the load 40 is added to the air that has flowed into the load passage portion 22 . This aerosol contains the flavor component eluted from the molded body 60 placed in the liquid of the liquid storage part 50 and the flavor component of the liquid extract placed in the liquid storage part 50 . The aerosol-added air passes through the downstream passage portion 23 and is discharged from the discharge port 13 to be sucked by the user.

According to the suction tool 10 according to the present embodiment as described above, the tobacco leaf flavor component contained in the molded body 60 can be added to the aerosol generated by the load 40 . This makes it possible to fully enjoy the flavor of tobacco leaves.

Further, according to the suction tool 10 according to the present embodiment, the tobacco leaf molded body 60 covered with the cover 62 is arranged inside the liquid of the liquid storage portion 50, and the swelling of the tobacco leaves is prevented. Since the body 60 and the electrical load 40 of the suction tool 10 are physically separated, it is possible to prevent tobacco leaves from adhering to the load 40 of the suction tool 10 . Thereby, deterioration of the load 40 of the suction tool 10 can be suppressed. Also, reduction in the usable amount of the liquid can be suppressed.

In addition, the amount (mg) of the carbonized component contained in 1 g of the extract in which the compact 60 and the extract are arranged is preferably 6 mg or less, more preferably 3 mg or less.

According to this configuration, it is possible to enjoy the flavor of tobacco leaves while suppressing the amount of carbonized components adhering to the electrical load 40 as much as possible. As a result, it is possible to enjoy the flavor of tobacco leaves while minimizing the occurrence of scorching of the load 40 .

It should be noted that "the carbonized component contained in the liquid extract in which the molded body 60 is arranged" specifically means the amount of the carbonized component contained in the liquid extracted before the molded body 60 is arranged, It corresponds to the sum of the amount of the carbonized component eluted into the extract from the compact 60 placed in the extract.

In addition, in the present embodiment, "carbonized component" refers to a component that becomes a carbide when heated to 250°C. Specifically, the term "carbonized component" refers to a component that does not form a carbide at a temperature of less than 250°C, but that forms a carbide when the temperature is maintained at 250°C for a predetermined period of time.

The "amount (mg) of the carbonized component contained in 1 g of the extract in which the compact 60 is arranged" can be measured, for example, by the following method. First, a predetermined amount (g) of extraction liquid in which the molded body 60 is arranged is prepared. Next, this extract is heated to 180° C. to volatilize the solvent (liquid component) contained in the extract, thereby obtaining a “residue composed of non-volatile components”. The residue is then heated to 250° C. to carbonize the residue to obtain a carbide. The amount (mg) of this carbide is then measured. By the above method, the amount (mg) of charcoal contained in a predetermined amount (g) of liquid extract can be measured. The amount (mg) of the component can be calculated.

Next, the relationship between the amount of carbonized components contained in 1 g of the extract and the TPM reduction rate will be described. FIG. 5 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 the extract. The horizontal axis of FIG. 5 indicates the amount of carbonized components contained in 1 g of the extract, and the vertical axis indicates the TPM reduction rate (R _TPM ) (%).

The TPM reduction rate (R _TPM : %) in FIG. 5 was measured by the following method. First, a plurality of suction tool samples having different amounts of carbonized components contained in 1 g of the extract were prepared. Specifically, five samples (sample SA1 to sample SA5) were prepared as samples of the plurality of suction tools. These five samples were prepared by the following steps.

(Step 1)
20 (wt%) of potassium carbonate in terms of dry weight was added to tobacco raw material composed of tobacco leaves, and then heat distillation treatment was performed. The distillation residue after the heat distillation treatment is immersed in water of 15 times the weight of the tobacco raw material before the heat distillation treatment for 10 minutes, dehydrated with a dehydrator, and then dried with a dryer to obtain tobacco. A residue was obtained.

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

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

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

Next, automatic smoking was performed on the plurality of samples prepared in the above-described steps using an automatic smoking machine ("Analytical Vaping Machine" manufactured by Borgwaldt) under "CRM (Coresta Recommended Method) 81 smoking conditions". rice field. The CRM 81 smoking condition is a condition in which 55 cc of aerosol is inhaled over 3 seconds, and is performed multiple times every 30 seconds.

The amount of total particulate matter collected 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 (R _TPM ) was calculated using the following formula (1). The TPM reduction rate (R _TPM ) in FIG. 5 was measured by the above method.

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

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

That is, the TPM reduction rate (R _TPM ) in Equation (1) is defined as "the amount of total particulate matter collected by the Cambridge filter from the 201st puff to the 250th puff of the automatic smoking machine. 1 minus the value obtained by dividing by the amount of total particulate matter collected by the Cambridge filter from the 1st puff to the 50th puff, and multiplied by 100.

As can be seen from FIG. 5, there is a proportional relationship between the amount of carbonized components contained in 1 g of the extract and the TPM reduction rate. As can be seen particularly from samples SA1 to SA4 in FIG. 5, when the amount of carbonized components contained in 1 g of the extract is 6 mg or less, the TPM reduction rate can be suppressed to 20% or less.

(Embodiment 2)
Next, Embodiment 2 will be described. This embodiment is an embodiment of a manufacturing method of the atomization unit 12 of the suction tool 10 . FIG. 6 is a flow chart for explaining the method of manufacturing the atomizing unit for a suction tool according to this embodiment.

In the extraction process of step S10, flavor components are extracted from tobacco leaves. Although the specific method of step S10 is not particularly limited, for example, the following method can be used. First, an alkaline substance is applied to tobacco leaves (referred to as alkaline treatment). As the alkaline substance used here, for example, a basic substance such as an aqueous solution of potassium carbonate can be used.

Next, the alkali-treated tobacco leaves are heated at a predetermined temperature (for example, a temperature of 80°C or more and less than 150°C) (referred to as heat treatment). Then, 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 substances are brought into contact with tobacco leaves.

By this heat treatment, released components (flavor components are included here) released from tobacco leaves into the gas phase are collected in a predetermined collection solvent. As the collection solvent, for example, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, or two types selected from this group The above substances can be used. As a result, a collection solvent containing flavor components can be obtained (that is, flavor components can be extracted from tobacco leaves).

Alternatively, step S10 can be configured without using the collection solvent as described above. Specifically, in this case, after subjecting the alkali-treated tobacco leaves to the above-described heat treatment, the components released from the tobacco leaves into the gas phase are cooled using a condenser or the like. can be condensed to extract flavor components.

Alternatively, step S10 may be configured without the alkali treatment as described above. Specifically, in this case, in step S10, tobacco leaves (tobacco leaves that have not been subjected to alkali treatment) are treated with glycerin, propylene glycol, triacetin, 1,3-butanediol, and water. A selected substance or two or more substances selected from this group are added. Next, the tobacco leaves to which this has been added are heated, and the components released during this 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.

Alternatively, in step S10, an aerosol in which one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water is aerosolized, or an aerosol selected from this group Tobacco leaves (tobacco leaves that have not been subjected to alkali treatment) are passed through the aerosol in which two or more kinds of substances are aerosolized, and the aerosol that has passed through the tobacco leaves is collected by a collection solvent. Flavor components can also be extracted by such a process.

In addition, step S10 (extraction step) according to the present embodiment reduces "the amount of carbonized components that become carbonized when heated to 250 ° C." contained in the flavor components extracted by the above-described method. It may further include According to this configuration, it is possible to effectively suppress adhesion of carbonized components to the load 40 . As a result, scorching of the load 40 can be effectively suppressed.

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

After step S10, a molding process related to step S20 and a concentration process related to step S30, which will be described below, are executed.

In step S20, the "tobacco residue", which is the tobacco leaves after being extracted in the extraction step of step S10, is hardened and molded into a predetermined shape (in this embodiment, a rod shape as an example), thereby forming the compact 60. to manufacture.

It should be noted that in the molding process of step S20, the tobacco residue may be washed with a cleaning liquid, and the tobacco residue after washing may be molded by the above-described method to manufacture the molded body 61. According to this configuration, the amount of carbonized components contained in the tobacco residue is reduced as much as possible by washing, and the compact body 61 can be manufactured using the tobacco residue with the reduced amount of carbonized components. As a result, it is possible to effectively suppress adhesion of carbonized components to the load 40 . As a result, scorching of the load 40 can be effectively suppressed.

On the other hand, in the concentration process related to step S30, the flavor components extracted in step S10 are concentrated. Specifically, in step S30 according to the present embodiment, the flavor components contained in the collection solvent containing the flavor components extracted in step S10 are concentrated.

After steps S20 and S30, the addition step of step S40 is executed. In step S40, the flavor component extracted in the extraction process of step S10 (specifically, in the present embodiment, the flavor component after being concentrated in step S30 is added to the compact body 61 manufactured in step S20). Flavoring ingredients) are added.

After step S40, the covering process of step S100 is executed. In step S100, the molded body 61 obtained in step S40 is covered with the material constituting the cover 62 such as the paper described above, and the molded body 60 in which the molded body 61 is covered with the cover 62 is manufactured. The method of covering the molded body 61 is not particularly limited. For example, the molded body 61 can be wrapped with the above material by a machine or by a person, and the material can be adhered as necessary.

After step S100, the assembly process related to step S50 is executed. Specifically, in step S50, the atomization unit 12 in which the molded body 60 is not stored is prepared, and the molded body 60 after step S100 is stored in the liquid storage section 50 of the atomization unit 12. do.

After step S50, the accommodation process related to step S60 is executed. In step S60, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, or two or more substances selected from this group contain liquids, including In this case, a flavor component may be added to the above-described liquid stored in the liquid storage section 50 separately from the flavor component added to the compact 60 in step S40 described above. Through the steps described above, the atomization unit 12 of the suction tool 10 according to the present embodiment is manufactured. The manufactured atomization unit 12 is connected to the power supply unit 11 (FIG. 1), etc., and the suction tool 10 is manufactured. Note that the accommodation process of step S60 may be performed before the assembly process of step S50. The same applies to the assembly process and housing process of the following modified examples.

It should be noted that this embodiment can also be configured not to include step S30. In this case, in step S40, the flavor component extracted in the extraction process of step S10 may be added to the compact 60 produced in step S20. However, the case where the present embodiment includes step S30 is preferable in that the amount of the flavor component contained in the molded body 60 can be increased compared to the case where it does not include step S30. In addition, in the present embodiment and the following modified examples, it is also possible to adopt a configuration that does not include the accommodation step. In this case, the user of the suction tool 10 can replenish the liquid container 50 by himself/herself.

According to the manufacturing method according to the present embodiment as described above, the atomization unit 12 of the suction device 10 can be manufactured while effectively using the tobacco residue covered with the cover 62 as the material of the molded body 60. can be done. As a result, the swelling of the tobacco leaves can be suppressed, and the amount of the liquid in the liquid container 50 that can be used for sucking can be suppressed from decreasing.

(Modification 1 of Embodiment 2)
FIG. 7 is a flowchart for explaining a method of manufacturing the atomization unit 12 of the suction tool 10 according to Modification 1 of Embodiment 2. As shown in FIG. In the extraction step of step S10 in FIG. 7, flavor components are extracted from tobacco leaves. Since this step S10 is the same as step S10 described in FIG. 6, detailed description thereof will be omitted.

After step S10, the molding process related to step S20 and the concentration process related to step S30 are executed. Steps S20 and S30 according to this modification are the same as steps S20 and S30 described with reference to FIG. 6, respectively, so detailed description thereof will be omitted. After step S20, the covering step of step S100A is performed. In step S100A, the molded body 61 obtained in step S20 is covered with the material constituting the cover 62 described above, and the molded body 60 in which the molded body 61 is covered with the cover 62 is manufactured.

In this modified example, after step S30, the extract manufacturing process of step S45 is executed. Specifically, in step S45, the flavor component extracted in step S10 (specifically, in this modification, the flavor component after being concentrated in step S30) is added to a predetermined solvent. , to produce tobacco leaf extract. Although the specific type of the predetermined solvent is not particularly limited, for example, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, Alternatively, two or more substances selected from this group can be used.

After step S100A and step S45, the assembly process related to step S50A is executed. Specifically, in step S50A, the atomization unit 12 in which the compact 60 is not accommodated is prepared, and the compact 60 manufactured in step S100A is accommodated in the liquid container 50 of the atomization unit 12. do. After step S50A, the accommodation process of step S60A is executed. Specifically, in step S60A, the "tobacco leaf extract" produced in step S45 is stored in the liquid storage unit 50 in which the compact 60 is stored. Through the steps described above, the atomization unit 12 of the suction tool 10 according to the present modification is manufactured. In step S100A, a portion of the tobacco leaf extract may be added to the covered compact 60, and then step S50A may be performed.

In the manufacturing method according to this modified example as described above, the atomization unit 12 of the suction device 10 can be manufactured while effectively utilizing the tobacco residue covered with the cover 62 as the material of the molded body 60. can. This can suppress the swelling of tobacco leaves. As a result, it is possible to prevent tobacco leaves from adhering to the load and deteriorating the load, and it is possible to suppress a decrease in the amount of the liquid in the liquid container 50 that can be used for suction. .

It should be noted that this modification can also be configured without step S30, as in the second embodiment described above. In this case, in step S45, the tobacco leaf extract may be produced by adding the flavor component extracted in step S10 to a predetermined solvent. However, the modification including step S30 is preferable in that the amount of flavor components contained in the tobacco leaf extract can be increased compared to the modification not including step S30.

(Modification 2 of Embodiment 2)
FIG. 8 is a flowchart for explaining a manufacturing method of the atomization unit 12 of the suction tool 10 according to Modification 2 of Embodiment 2. As shown in FIG. In the extraction step of step S10 in FIG. 8, flavor components are extracted from tobacco leaves. Since this step S10 is the same as step S10 described in FIG. 6, detailed description thereof will be omitted.

After step S10, the molding process related to step S20B and the concentration process related to step S30 are executed. Step S30 according to this modification is the same as step S30 described with reference to FIG. 6, so detailed description thereof will be omitted.

In step S20B according to this modification, the flavor component extracted in step S10 (specifically, in this modification, , Furthermore, the flavor component after being concentrated in step S30) is mixed to produce a mixture, and the mixture is solidified and molded into a predetermined shape (in this modification, a rod shape as an example), so that the molded body main body 61 to manufacture. After step S20B, the covering step of step S100B is performed. In step S100B, the molded body 61 obtained in step S20B is covered with the material constituting the cover 62 described above, and the molded body 60 in which the molded body 61 is covered with the cover 62 is manufactured.

After step S100B, the assembly process related to step S50B is executed. In step S50B, the atomization unit 12 in which the molded article 60 is not accommodated is prepared, and the molded article 60 manufactured in step S100B is accommodated in the liquid storage section 50 of the atomization unit 12 . After step S50B, the accommodation process of step S60B is performed. In step S60B, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, or A liquid containing two or more substances selected from this group is contained. In this case, a flavor component may be added to the above-described liquid contained in the liquid container 50 separately from the flavor component mixed with the tobacco residue in step S20B described above. Through the steps described above, the atomization unit 12 of the suction tool 10 according to the present modification is manufactured.

It should be noted that this modification can also be configured without step S30, as in the second embodiment described above. In this case, in step S20B, the tobacco residue is mixed with the flavor component extracted in step S10 to produce a mixture, and the mixture is hardened and molded into a predetermined shape to produce molded body 60. . However, the modification including step S30 is preferable in that the amount of the flavor component contained in the molded body 60 can be increased compared to the modification not including step S30.

(Modifications of Embodiments 1 and 2)
In the above-described embodiments, tobacco raw materials other than tobacco leaves may be used in place of tobacco leaves or in addition to tobacco leaves for the molded article and the extract. Even in this case, swelling of the tobacco raw material can be suppressed. In addition, it is possible to prevent the tobacco raw material contained in the molded article from being dispersed in the liquid due to the molded article cracking or disintegrating due to swelling. In addition, it is possible to suppress the deterioration of the load caused by the tobacco raw material adhering to the load due to dispersion. Here, tobacco raw materials refer to raw materials derived from tobacco plants such as tobacco leaves, backbones, stems and roots.

The embodiments and modifications of the present invention have been described in detail above, but the present invention is not limited to such specific embodiments and modifications, and is within the scope of the gist of the invention described in the scope of claims. , various modifications and changes are possible.

10 Suction Tool 12 Atomization Unit 20 Air Passage 40 Load 50 Liquid Storage Portion 60 Molded Body 61 Molded Body Main Body 62 Cover Le Extraction Liquid

Claims

A tobacco molded body covered with a cover and containing hardened tobacco raw materials.
The tobacco molded article according to claim 1, wherein the cover contains at least one of vegetable fibers, animal fibers, chemical fibers and inorganic fibers.
The tobacco molded article according to claim 1 or 2, wherein the cover contains paper.
The tobacco molded article according to claim 3, wherein the paper includes at least one of nonwoven fabric, plain paper and water-repellent paper.
The tobacco molded product according to any one of claims 1 to 4, wherein the entire tobacco molded product is covered with the cover.
a liquid container for containing an atomizing liquid;
The tobacco molded article according to any one of claims 1 to 5, which is contained in the liquid containing portion;
and an electric load for introducing the atomizing liquid in the liquid container and for atomizing the introduced atomizing liquid to generate an aerosol.
The atomization unit for a sucker according to claim 6, wherein the liquid containing portion contains the atomization liquid that contacts the tobacco molded article.
The atomizing unit for an inhaler according to claim 6 or 7, wherein the atomizing liquid contains tobacco extract.
A suction tool comprising the suction tool atomization unit according to any one of claims 6 to 8.
a forming step of solidifying tobacco leaves to form a tobacco molded body;
a covering step of covering the tobacco molded article with a cover;
and an assembling step of arranging the tobacco molded article coated in the coating step in a liquid container.
An accommodating step of accommodating, in the liquid accommodating portion, a liquid containing one or more substances selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and water, in the liquid accommodating portion. The manufacturing method of the atomization unit for suction tools according to claim 10, further comprising: