WO2023166597A1

WO2023166597A1 - Tobacco compact comprising binder

Info

Publication number: WO2023166597A1
Application number: PCT/JP2022/008795
Authority: WO
Inventors: 光史松本; 貴久工藤; 学山田
Original assignee: 日本たばこ産業株式会社
Priority date: 2022-03-02
Filing date: 2022-03-02
Publication date: 2023-09-07

Abstract

A tobacco compact used in an inhalation tool which heats and atomizes an aerosol-generating liquid obtained by bringing a tobacco compact and a nicotine-containing liquid into contact, the tobacco compact comprising a tobacco material and a binder selected from the group consisting of starch, hydroxyalkyl alkyl cellulose, gum base, and a combination thereof.

Description

TOBACCO MOLDED BODY CONTAINING BINDER

The present invention relates to a tobacco molded article containing a binder.

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).

International Publication No. 2019/211332

In the conventional suction tool as exemplified in Patent Document 1, there is a risk that the electric load of the suction tool will be charred and the product will deteriorate. The inventors believe that this phenomenon is caused by the fact that tobacco raw materials are dispersed in the liquid, and a large amount of a component that causes scorching (also referred to as a "carbonization component") is eluted into the liquid. I found out that there is SUMMARY OF THE INVENTION In view of such circumstances, an object of the present invention is to provide a tobacco molded article that provides a suction tool that is resistant to deterioration.

Means for solving the invention

The inventors have completed the present invention based on the idea that the above drawbacks can be overcome by using a tobacco molded product that does not readily transfer carbonized components to the liquid. That is, the above problems are solved by the present invention described below.
Aspect 1
A tobacco molded article for use in an inhaler that heats and atomizes an aerosol-generating liquid obtained by contacting a tobacco molded article with a nicotine-containing liquid,
tobacco material;
a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof;
Tobacco molded body containing
Aspect 2
The tobacco molded article according to aspect 1, further comprising a gelation accelerator that promotes gelation of the binder.
Aspect 3
The tobacco molded article according to aspect 2, wherein the gelling accelerator contains a cation having a valence of 2 or more.
Aspect 4
The aspirator comprises a liquid storage section that stores the aerosol-generating liquid, and an electric device that introduces the aerosol-generating liquid in the liquid storage section and atomizes the introduced aerosol-generating liquid to generate an aerosol. having a load and
The molded tobacco product according to any one of aspects 1 to 3, which is placed inside the liquid containing portion together with the nicotine-containing liquid.
Aspect 5
An aerosol-generating liquid used in an inhaler that heats and atomizes an aerosol-generating liquid obtained by contacting a tobacco molded article with a nicotine-containing liquid,
An aerosol-generating liquid comprising 10% or less by weight of a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof in the aerosol-generating liquid.
Aspect 6
6. The aerosol-generating liquid according to aspect 5, comprising a polyhydric alcohol.
Aspect 7
The aspirator comprises a liquid storage section that stores the aerosol-generating liquid, and an electric device that introduces the aerosol-generating liquid in the liquid storage section and atomizes the introduced aerosol-generating liquid to generate an aerosol. 7. The aerosol-forming liquid according to aspect 5 or 6, having a load.
Aspect 8
a liquid containing portion containing the tobacco molded article according to any one of aspects 1 to 4 and a nicotine-containing liquid;
an electrical load that introduces the aerosol-generating liquid generated in the liquid storage unit and atomizes the introduced liquid to generate an aerosol;
comprising an atomization unit having
suction tool.
Aspect 9
a liquid storage unit that stores the aerosol-generating liquid according to aspect 5 or 6;
an electrical load for introducing the aerosol-generating liquid in the liquid container and atomizing the introduced aerosol-generating liquid to generate an aerosol;
comprising an atomization unit having
suction tool.

With the present invention, deterioration of the load of the suction tool 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.

The present invention will be described in detail below. In the present invention, "X to Y" includes X and Y which are the end values.
1. Tobacco molded body A tobacco molded body is a member obtained by molding a tobacco material into a certain shape. A tobacco compact according to one aspect of the present invention comprises a tobacco material and a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof.

(1) Tobacco Materials Tobacco materials are materials derived from Nicotiana plants. Tobacco materials include, for example, Nicotiana tabacum and Nicotiana rustica. As Nicotiana tabacum, varieties such as burley and yellow can be used, for example. Varieties other than burley and yellow varieties may be used as the tobacco material.

The tobacco material may be chopped or powdered (hereinafter collectively referred to as "material pieces"). In such cases, the particle size of the material pieces is preferably 0.5 to 1.18 mm. Such material pieces are obtained, for example, by sieving according to JIS Z 8815 using a stainless steel sieve according to JIS Z 8801. For example, using a stainless steel sieve with an opening of 1.18 mm, the material pieces are sieved for 20 minutes by a dry and mechanical shaking method to pass through a stainless steel sieve with an opening of 1.18 mm. Get a piece of material. Subsequently, using a stainless sieve with an opening of 0.50 mm, the material pieces are sieved for 20 minutes by a dry and mechanical shaking method, and passed through a stainless sieve with an opening of 0.50 mm. remove loose material. That is, the material piece is a piece of material that passes through the stainless sieve (opening=1.18 mm) that defines the upper limit and does not pass through the stainless sieve (opening=0.50 mm) that defines the lower limit. Alternatively, the tobacco material may be chopped or chopped strands obtained by cutting a tobacco sheet prepared by a known method.

The tobacco material may be tobacco residue after subjecting tobacco leaves to extraction. The extraction will be described below.

The extraction may include, for example, alkali treatment of applying an alkali substance to the tobacco leaves. As the alkaline substance, for example, a basic substance such as an aqueous solution of potassium carbonate can be used. 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.) (hereinafter also referred to as “heat treatment”). Then, during this heat treatment, for example, one substance selected from the group consisting of glycerin, propylene glycol, triacetin, polyhydric alcohols such as 1,3-butanediol, and water, or this group Tobacco leaves are brought into contact with two or more substances selected from among them (hereinafter collectively referred to as "extraction solvent").

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 collecting solvent, for example, the extraction solvent can be used. Thereby, a collection solvent containing flavor components can be obtained. That is, flavor components can be extracted from tobacco leaves.

Alternatively, the collection solvent may not be used. 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.

In addition, when alkali treatment is not performed, the extraction solvent is added to tobacco leaves (tobacco leaves not subjected to alkali treatment). 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, the aerosol obtained by aerosolizing the extraction solvent is passed through tobacco leaves (tobacco leaves that have not been subjected to alkali treatment), 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.

The extraction step may further include reducing "the amount of carbonized components that become carbonized when heated to 250°C" contained in the flavor components extracted by the method described above.

A specific method for reducing the amount of the carbonized component contained in the extracted flavor component is not particularly limited. By doing so, the amount of carbonized components contained in the extracted flavor component may be reduced. 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.

(2) Binder The tobacco molded body contains a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof. The binder suppresses the swelling or partial disintegration of the tobacco moldings when the tobacco moldings are immersed in the nicotine-containing liquid, and prevents the carbonization component that causes scorching from migrating into the nicotine-containing liquid. hinder

1) Starch Starch is a polymer of D-glucose, preferably a mixture of amylose and amylopectin. Starch also includes starch-derived polymer compounds. Starch-derived polymeric compounds include denatured, modified, and processed starches. The molecular weight of starch is not limited. However, if starch dissolves in the nicotine-containing liquid, the effect of suppressing the occurrence of scorching may not be sufficiently exhibited. From this point of view, the starch preferably has a molecular weight that gives a viscosity of 200 to 3000 mMPa as measured in a 5% by weight aqueous solution.

2) Hydroxyalkylalkylcellulose Hydroxyalkylalkylcellulose (hereinafter also referred to as “HAAC”) means that H of at least one —OH group of a pyranose ring constituting cellulose is substituted with a group containing a hydroxyalkyl group, and at least It is a compound in which H of one —OH group is substituted with an alkyl group. That is, HAAC is a cellulose ether ester and also a cellulose ether ester in which the ester group has a terminal hydroxyalkyl group. Specifically, HAAC is represented by the following chemical formula (I).

In the formula, R is H, an alkyl group, or a group represented by -(AO)mH, n is the number of repetitions and is an integer of 1 or more. m is an integer of 1 or more, and A is an alkylene group. If HAAC is completely dissolved in the nicotine-containing liquid, the above effects may not be sufficiently exhibited. From this point of view, the alkylene group preferably has 2 to 5 carbon atoms, more preferably 2 or 3 carbon atoms. Also, the alkyl group is preferably a methyl group or an ethyl group, more preferably a methyl group. Thus, in one aspect, the HAAC is hydroxypropylmethylcellulose.

Although the molecular weight of HAAC is not limited, it preferably has a molecular weight of about 20 to 7,000 mm ^{2 /} s when measured in an aqueous solution with a concentration of 2% by weight, from the viewpoint of efficiently exhibiting the above effects.

3) Gum base Gum base is a substance that serves as a base material for chewing gum. The gum base functions as a binder and is difficult to dissolve in the aerosol-generating liquid. Gum bases include vinyl acetate resins, jelutong, and chicle. Vinyl acetate resins are vinyl acetate monomers, polyvinyl acetate, or combinations thereof. Jelutong is a substance obtained by removing the water-soluble component of latex obtained from the branch of Jelutong of the family Apocynaceae, and is composed mainly of amylin acetate and cis-polyisoprene. Chicle is a substance obtained from the sap of the Sapodilla family Sapotaceae. The molecular weight of polyvinyl acetate (PVAc) is not limited, but from the viewpoint of efficiently expressing the above effect, the viscosity measured with an aqueous solution having a concentration of 40% by weight is preferably 500 to 10,000 mPa s, more preferably 10,000 to 50,000 mPa s. The molecular weight is such that

4) Content As described above, if the amount of the binder is too small, it is difficult to obtain the above effects. On the other hand, if the amount is excessive, the flavor and taste may be adversely affected. From this point of view, the total amount of the binder in the tobacco molded product is preferably 1-20% by weight, more preferably 3-10% by weight. In the present invention, content means dry weight unless otherwise specified.

(3) Gelation Accelerator The tobacco molded product may contain a gelation accelerator that promotes gelation of the binder. The type of gelation accelerator is not limited, but examples thereof include compounds containing divalent or higher cations. Examples of divalent or higher cations include calcium, magnesium, iron, and the like. These may be in the form of salts. Therefore, in one embodiment, the gelling accelerator may be a salt composed of an acid and the cation approved as a food additive, or a hydrate of the salt. Such salts include calcium lactate or its hydrates. The amount of the gelling accelerator is not limited as long as it is an amount capable of gelling the binder and improving the water resistance, but it is preferably 0.5 to 5 parts by weight, more preferably 0.5 to 5 parts by weight with respect to 100 parts by weight of the binder. 1 to 3 parts by weight.

(4) Manufacture of Tobacco Molded Articles A tobacco molded article can be produced by preparing the tobacco material described above, mixing it with a binder and, if necessary, a medium and other components, and molding the mixture. The mixing method can be carried out using a known device such as a mixer. Molding can also be carried out by known methods, examples of which include pressurization, tableting, extrusion molding and the like. The shape of the tobacco molded body is not limited, either, and it can be, for example, rod-shaped. The shape of its base may be circular, elliptical, or polygonal.

The surface of the tobacco molded article may be coated with a coating material. Wax, for example, can be used as this coating material. Examples of this wax include Microcrystalline WAX manufactured by Nippon Seiro Co., Ltd. (model number: Hi-Mic-1080 or model number: Hi-Mic-1090), and water-dispersed ionomer manufactured by Mitsui Chemicals (model number: Chemipearl S120). ), Mitsui Chemicals Hi-Wax (model number: 110P), or the like can be used.

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

It is preferable that the coating material has a plurality of pores (fine pores) through which the flavor components remaining in the tobacco material can pass while suppressing the passage of the tobacco material. That is, it is preferable that the pores of the coating material have a size larger than that of the flavor component and smaller than that of the tobacco material. A specific size (diameter) of the hole is not particularly limited, but is selected from, for example, 10 μm to 3 mm. A net-like mesh member can also be used as the coating material.

2. Nicotine-containing liquid A nicotine-containing liquid is a liquid containing nicotine. Nicotine may be derived from natural products or may be chemically synthesized. Therefore, examples of nicotine-containing liquids include liquids containing flavor and taste components derived from Nicotiana plants and liquids containing synthetic nicotine obtained by subjecting tobacco materials to an extraction step. The tobacco material is as described above. The amount of nicotine is adjusted as appropriate, and in one embodiment, it may be 0.1 to 10% by weight, 0.5 to 7.5% by weight, or 1 to 5% by weight in the nicotine-containing liquid. you can
(1) Flavor component The nicotine-containing liquid may contain a flavor component. Examples of flavor and taste components include alkaloids other than nicotine derived from Nicotiana plants.

(2) Medium The nicotine-containing liquid preferably contains water or a polyhydric alcohol as a medium. Polyhydric alcohols can also function as aerosol-generating substrates when used in suction devices. Polyhydric alcohols are preferably selected from the group consisting of glycerin, propylene glycol, triacetin, 1,3-butanediol, and combinations thereof.

(3) Others The nicotine-containing liquid may contain known additives such as fragrances. The amount may be a known amount.

(4) Method for producing nicotine-containing liquid Nicotine-containing liquid can be produced by a known method. For example, 1. A residue and an extraction solution or a collection solution may be obtained by the method described in (1), and the liquid may be used as a nicotine-containing liquid. Alternatively, the nicotine-containing liquid can be produced according to the method disclosed in Japanese Patent No. 6101860. Nicotine-containing liquids can also be produced by dissolving or dispersing nicotine chemically synthesized by a known method in the medium.

3. Aerosol-Generating Liquid The aerosol-generating liquid is a liquid obtained by bringing the tobacco molded article into contact with the nicotine-containing liquid, and generates an aerosol when heated. Although the mixing ratio of both is not limited, in one aspect, the amount of the nicotine-containing liquid is about 50 to 500 parts by weight with respect to 100 parts by weight of the tobacco molded article. The contact temperature is also not limited, and can be, for example, about room temperature (10 to 35° C.).

The aerosol-generating liquid contains a binder derived from the tobacco molded article. Although the amount thereof is not limited, it is preferably 10% by weight or less, more preferably 5% by weight or less, and even more preferably 3% by weight or less in the aerosol-generating liquid. Although the lower limit of the amount is not limited, it is preferably more than 0% by weight, more preferably 0.5% by weight or more.

As mentioned above, the aerosol-generating liquid may contain carbonized components. However, in this embodiment, since the tobacco molded article containing the binder is used, the amount of carbonized components in the aerosol-generating liquid can be reduced. The amount (mg) of the carbonized component contained in 1 g of the aerosol-generating liquid is preferably 6 mg or less. When the amount of the carbonized component is within this range, the flavor and taste can be enjoyed while suppressing the amount of the carbonized component adhering to the electrical load as much as possible. As a result, it is possible to enjoy the aroma and taste while suppressing the occurrence of scorching in the load as much as possible.

"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 of carbonized components can be measured, for example, by the following method. First, the aerosol-generating liquid is heated to 180° C. to volatilize the solvent (liquid component) contained in the aerosol-generating liquid to obtain a “residue composed of non-volatile components”. Then, this residue is heated to 250° C. to carbonize the residue to obtain a carbide, and the amount (mg) thereof is 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.

4. Suction Device A suction device according to an aspect of the present invention includes a liquid storage section that stores a nicotine-containing liquid and the tobacco molded article, and an aerosol-generating liquid generated in the liquid storage section. and an electrical load for atomizing the liquid to generate an aerosol. Alternatively, in another aspect, the suction device includes a liquid storage part that stores the aerosol-generating liquid, and the aerosol-generating liquid is introduced from the liquid storage part, and the introduced liquid is atomized to generate an aerosol. an atomization unit having an electrical load;

(Embodiment 1)
Hereinafter, a suction tool 10 according to Embodiment 1 of the present invention will be described with reference to the drawings. The drawings of the present application are schematically illustrated 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, the width direction, and the 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 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 .

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 tool 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, the wall portion 71b is provided with a hole 72c and a hole 72d. 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 this 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 of the liquid storage section 50 to the load 40 of the load passage section 22 . The specific configuration of the wick 30 is not particularly limited as long as it has such a function. It is introduced into the load 40 .

The load 40 is an electrical load for introducing the liquid in the liquid storage section 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 via 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 those used in known suction tools, such as those exemplified in Patent Document 2, so further detailed description will be omitted.

The liquid storage part 50 is a part for storing the liquid (Le). 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.

FIG. 4 is a schematic perspective view of the molded body 60. FIG. With reference to FIGS. 2, 3 and 4, tobacco molded article (hereinafter also simply referred to as "molded article") 60 is as described above. In this embodiment, the liquid containing portion 50 is filled with a nicotine-containing liquid, and the molding 60 is immersed in the liquid. The number of molded bodies 60 is not limited, and may be one, two, or three or more. An aerosol-generating liquid is generated within the liquid containing portion 50 .

The shape of the molded body 60 is not particularly limited. ), a sheet shape, or other shapes.

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. The cross-sectional shape of the molded body 60 is not limited to a circular shape, and may be, for example, a polygonal shape (a triangle, a quadrangle, a pentagon, or a polygon having 6 or more corners). Further, when a sheet-shaped molded article 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 article 60 .

Further, specific values of the width (that is, the outer diameter) (W), which is the length of the molded body 60 in the lateral direction, and the total length (L), which is the length of the molded body 60 in the longitudinal direction, 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 the range of 2 to 20 mm, for example, can be used. As the total length (L) of the molded body 60, a value selected from the range of 5 to 50 mm, for example, 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 according to the size of the suction tool 10. value should be set.

Further, in the present embodiment, the density (mass per unit volume) of the compact 60 is, for example, 1100 mg/cm ³ or more and 1450 mg/cm ³ or less. However, the density of the compact 60 is not limited to this, and may be less than 1100 mg/cm ³ or greater than 1450 mg/cm ³ .

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 contained in the nicotine-containing liquid and the flavor component eluted from the molded body 60 . 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 aerosol generated by the load 40 allows the user to fully enjoy the flavor of tobacco leaves.

Further, according to the suction tool 10 according to the present embodiment, the molded body 60 is arranged inside the nicotine-containing liquid of the liquid storage part 50, and the molded body 60 and the electrical load 40 of the suction tool 10 are physically connected. Since the load 40 of the suction tool 10 is separated from the load 40 of the suction tool 10, it is possible to prevent tobacco materials such as 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. In particular, since the compact 60 contains the binder, it is possible to suppress liberation of the carbonized component into the aerosol-generating liquid. Therefore, deterioration of the load 40 can be particularly suppressed.

(Embodiment 2)
In this embodiment, the liquid container 50 is filled with an aerosol-generating liquid separately prepared. The aerosol-generating liquid is prepared by bringing the nicotine-containing liquid and the tobacco compact into contact with each other, and the liquid containing portion 50 is filled with this liquid. Therefore, in the present embodiment, it is not necessary to arrange the molded body 60 in the liquid containing portion 50, but the molded body 60 may be disposed in order to obtain a stronger flavor and taste.

[Example 1]
A mixture was obtained by mixing 5% by weight of starch (tapioca αY manufactured by Sanwa Starch Kogyo Co., Ltd.) as a binder, 1% by weight of calcium lactate pentahydrate as a gelling accelerator, and 94% by weight of water. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 4 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:100. Each liquid is as follows.
R5: A liquid obtained by mixing 5% by weight of water with 95% by weight of polyhydric alcohol obtained by mixing glycerin and propylene glycol at a weight ratio of 7:3.
R30: A liquid obtained by mixing 70% by weight of polyhydric alcohol, which is a mixture of glycerin and propylene glycol at a weight ratio of 7:3, and 30% by weight of water.
M5: A liquid obtained by mixing 5% by weight of water with 95% by weight of polyhydric alcohol obtained by mixing glycerin and propylene glycol at a weight ratio of 2:8.
M30: A liquid obtained by mixing 70% by weight of polyhydric alcohol obtained by mixing glycerin and propylene glycol at a weight ratio of 2:8 and 30% by weight of water.

The suction tool 10 shown in FIG. 2 was prepared, and the liquid container 50 was filled with the liquid R5 after the film had been immersed (the film was removed; the same applies hereinafter). The suction tool 10 was subjected to a smoking test to evaluate the burning of the load 40 (coil). Similarly, the liquid containing portion 50 was filled with the liquid M5 after the film had been immersed (the film was removed; the same applies hereinafter), and a smoking test was conducted for evaluation. Table 1 shows the results. R5 did not burn even after 200 puffs, and M5 did not burn even after 250 puffs. Therefore, the binder used in this example is useful as a binder for tobacco moldings that can suppress the occurrence of scorching.

[Example 2]
A mixture was prepared by mixing 5% by weight of hydroxypropyl methylcellulose (SE50, manufactured by Shin-Etsu Chemical Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 3 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. No scorching of the coil was observed with any of the liquids. Therefore, the binder used in this example is useful as a binder for tobacco moldings that can suppress the occurrence of scorching.

[Example 3]
A mixture was prepared by mixing 5% by weight of hydroxypropyl methylcellulose (NE-100 manufactured by Shin-Etsu Chemical Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 3 days, and changes in properties were observed. Table 1 shows the results. The property change of the film showed the same behavior as the film of Example 2. From these results, as in Example 2, the binder used in this example is useful as a binder for tobacco molded articles capable of suppressing the occurrence of scorching.

[Example 4]
A mixture was prepared by mixing 5% by weight of hydroxypropyl methylcellulose (NE-4000 manufactured by Shin-Etsu Chemical Co., Ltd.) as a binder, 1% by weight of calcium lactate pentahydrate as a gelling accelerator, and 94% by weight of water. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 3 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. No scorching of the coil was observed with any of the liquids. Therefore, the binder used in this example is useful as a binder for tobacco moldings that can suppress the occurrence of scorching.

[Example 5]
A mixture was prepared by mixing 5% by weight of vinyl acetate (Konishi Bond for woodwork manufactured by Konishi Kogyo Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 5 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. No scorching of the coil was observed with any of the liquids. Therefore, the binder used in this example is useful as a binder for tobacco moldings that can suppress the occurrence of scorching.

[Comparative Example 1]
As a binder, 5% by weight of carboxymethyl cellulose (F04HC manufactured by Nippon Paper Industries Co., Ltd.) and 95% by weight of water were mixed to form a mixture. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 22° C. for 3 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:10. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. In the case of liquid R5, charring was observed on the coil.

[Comparative Example 2]
As a binder, 5% by weight of carboxymethyl cellulose (F30HC manufactured by Nippon Paper Industries Co., Ltd.) and 95% by weight of water were mixed to form a mixture. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 to observe changes in properties. The conditions were the same as in Comparative Example 1. Table 1 shows the results. Significant thickening or gelling of the liquid was observed in liquids R5, R30, M30. This means that the binder tends to migrate to liquid, and it can be said that it is not useful as a binder for tobacco molded articles that can suppress the occurrence of scorching.

[Comparative Example 3]
As a binder, 5% by weight of carboxymethyl cellulose (F350HC manufactured by Nippon Paper Industries Co., Ltd.) and 95% by weight of water were mixed to form a mixture. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 to observe changes in properties. The conditions were the same as in Comparative Example 1. Table 1 shows the results. Gelation was observed in liquids R5, R30 and M30. This means that the binder tends to migrate to liquid, and it can be said that it is not useful as a binder for tobacco molded articles that can suppress the occurrence of scorching.

[Comparative Example 4]
A mixture was prepared by mixing 5% by weight of hydroxypropyl cellulose (HPC-L manufactured by Nippon Soda Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 to observe changes in properties. The conditions were the same as in Comparative Example 1. Table 1 shows the results. In liquids M5, M30, the shape of the film collapsed. This means that the binder tends to migrate to liquid, and it can be said that it is not useful as a binder for tobacco molded articles that can suppress the occurrence of scorching.

[Comparative Example 5]
A mixture was prepared by mixing 5% by weight of hydroxypropyl cellulose (Celny M manufactured by Nippon Soda Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 22° C. and 40° C. for 3 days, and changes in properties were observed. In the table, the upper row shows the results at 22°C and the lower row shows the results at 40°C (the same applies to Comparative Examples 6 and 7). The film:liquid (weight ratio) was 1:10. Gelation was observed in liquid M5. Next, the occurrence of scorching was evaluated in the same manner as in Example 1 using liquid R5 after the film had been immersed. Table 1 shows the results. Burning was observed in the coil.

[Comparative Example 6]
Evaluation was performed in the same manner as in Comparative Example 5, except that hydroxypropyl cellulose (Celny H manufactured by Nippon Soda Co., Ltd.) was used as a binder. Table 1 shows the results. Gelation was observed in liquid M5. From this, it can be said that the binder used in this example is not useful as a binder for tobacco moldings capable of suppressing the occurrence of scorching.

[Comparative Example 7]
Evaluation was performed in the same manner as in Comparative Example 5 except that hydroxypropyl cellulose (Celny VH manufactured by Nippon Soda Co., Ltd.) was used as a binder. Table 1 shows the results. Gelation was observed in liquid M5. From this, it can be said that the binder used in this example is not useful as a binder for tobacco moldings capable of suppressing the occurrence of scorching.

[Comparative Example 8]
As a binder, 5% by weight of polyvinyl alcohol (manufactured by Wako Pure Chemical Industries, Ltd.) having different degrees of saponification and 95% by weight of water were mixed to form a mixture. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 3 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. Film dissolution was observed in liquid M30. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. Charring of the coil was observed in liquid R5.

[Comparative Example 9]
A mixture was prepared by mixing 5% by weight of corn protein (Kobayashi Zein DP-N manufactured by Kobayashi Koryo Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 3 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. Partial dissolution of the film was observed in liquid M5. From this, it can be said that the binder used in this example is not useful as a binder for tobacco moldings capable of suppressing the occurrence of scorching.

[Comparative Example 10]
A mixture was prepared by mixing 5% by weight of a natural resin (Laccoat 50 manufactured by Nippon Shellac Industry Co., Ltd.) and 95% by weight of water as a binder. The mixture was cast to obtain a cast film. The film was immersed in the liquids shown in Table 1 at 40° C. for 5 days, and changes in properties were observed. The film:liquid (weight ratio) was 1:30. An increase in viscosity of liquid M5 was observed. Next, using the liquids R5 and M5 after the film was immersed, the same method as in Example 1 was used to evaluate the occurrence of scorching. Table 1 shows the results. Charring of the coil was observed in liquids R5 and M5.

The binders used in the examples are useful as binders for tobacco moldings that can suppress the occurrence of scorching.

10 Suction Tool 12 Atomization Unit 20 Air Passage 40 Load 50 Liquid Storage Part 60 Molded Body Le Extraction Liquid

Claims

A tobacco molded article for use in an inhaler that heats and atomizes an aerosol-generating liquid obtained by contacting a tobacco molded article with a nicotine-containing liquid,
tobacco material;
a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof;
Tobacco molded body containing
The tobacco molded article according to claim 1, further comprising a gelation accelerator that promotes gelation of said binder.
The tobacco molded article according to claim 2, wherein the gelling accelerator contains a cation having a valence of 2 or more.
The aspirator comprises a liquid storage section that stores the aerosol-generating liquid, and an electric device that introduces the aerosol-generating liquid in the liquid storage section and atomizes the introduced aerosol-generating liquid to generate an aerosol. having a load and
The tobacco molded article according to any one of claims 1 to 3, which is used together with said nicotine-containing liquid in said liquid container.
An aerosol-generating liquid used in an inhaler that heats and atomizes an aerosol-generating liquid obtained by contacting a tobacco molded article with a nicotine-containing liquid,
An aerosol-generating liquid comprising 10% or less by weight of a binder selected from the group consisting of starch, hydroxyalkylalkylcellulose, gum base, and combinations thereof in the aerosol-generating liquid.
The aerosol-generating liquid according to claim 5, containing a polyhydric alcohol.
The aspirator comprises a liquid storage section that stores the aerosol-generating liquid, and an electric device that introduces the aerosol-generating liquid in the liquid storage section and atomizes the introduced aerosol-generating liquid to generate an aerosol. 7. The aerosol-forming liquid of claim 5 or 6, having a load.
a liquid containing portion containing the tobacco molded article according to any one of claims 1 to 4 and a nicotine-containing liquid;
an electrical load that introduces the aerosol-generating liquid generated in the liquid storage unit and atomizes the introduced liquid to generate an aerosol;
comprising an atomization unit having
suction tool.
a liquid storage unit that stores the aerosol-generating liquid according to claim 5 or 6;
an electrical load for introducing the aerosol-generating liquid in the liquid container and atomizing the introduced aerosol-generating liquid to generate an aerosol;
comprising an atomization unit having
suction tool.