RU2787749C1 - Tobacco product heated without burning and aerosol generation system - Google Patents

Abstract

FIELD: tobacco industry.

SUBSTANCE: invention relates to a tobacco product heated without burning and an aerosol generation system. A heated tobacco product containing a tobacco rod, a mouthpiece and a wrapped part in which the tobacco rod and the mouthpiece are wrapped with tipping paper is offered. An anti-lip sticking agent is applied to the area of the tipping paper. The wrapped part consists of the first region and the second region in the longitudinal direction of the tobacco product heated without burning. The first area includes the end of the tobacco product heated without burning on the side of the mouthpiece, and the second area includes the end available on the side of the tobacco rod. The first area and the second area satisfy the following condition A: the content of the lip-sticking agent per unit area in the first area is greater than the content of the anti-lip sticking agent per unit area in the second area. An aerosol generation system containing an electric heating device and a tobacco product heated without burning are also proposed. The electric heating device contains a heating element, a battery unit that serves as a power source for the heating element, and a control unit for controlling the heating element. The tobacco product heated without burning is inserted into an electric heating device, so that the tobacco product heated without burning comes into contact with the heating element.

EFFECT: inventions provide a tobacco product heated without burning in which the amount of substance is reduced, formed of a component that prevents the product from sticking to the lips during use, heated without burning the tobacco product and having a negative effect on the flavor and the like.

10 cl, 11 dwg, 1 tbl

Description

Technical field

[0001] The present invention relates to a non-burning heated tobacco product and an electrically heated tobacco product.

State of the art

[0002] An electrically heated tobacco product has been developed, including an electrical heating device and a non-burning heated tobacco product, the electrical heating device including a heating element, a battery pack that serves as a power source for the heating element, and a control unit for controlling heating element, and the non-burning heated tobacco product is inserted into the electric heating device so that the non-burning heated tobacco product comes into contact with the heating element (PTL 1). The non-burning heated tobacco product typically includes a tobacco rod formed by wrapping tobacco shreds, aerosol precursor material, and the like. wrapping paper; a mouthpiece through which the aerosol generated from the tobacco rod by heating the tobacco rod is inhaled; and rim paper, which is wrapped around the tobacco rod and mouthpiece.

An electrically heated tobacco product is used by inserting a non-burning heated tobacco product into an electrically heated device. The heating element is actuated to generate heat to heat the tobacco rod from the location where the tobacco rod comes into contact with the heating element so that the aerosol precursor material contained in the tobacco rod is delivered to the user along with the flavor and aroma components of the smoke.

[0003] In the fields of technology related to tobacco, in particular in the field of heated without burning tobacco products, it is desirable to improve the aroma and taste of the smoke.

Citation list

Patent Literature

[0004] PTL 1: Japanese Patent Unexamined Publication No. 2018-191652

The essence of the invention

Technical task

[0005] In the art of a non-burning heated tobacco product, it is desirable to reduce the formation of components that adversely affect, for example, the taste of the smoke. Little research has been done in this area regarding tip paper coating agent to satisfy such a desire.

An example of a tipping paper coating agent is an anti-sticking agent applied to reduce sticking of the tipping paper to the wearer's lips.

The inventor of the present invention has found that the anti-lip agent component applied to the rim paper decomposes when the anti-lip agent is heated during use of a heated non-burning tobacco product, and that this degraded component contributes to an increase in the amount of the adverse effect substance, like the taste of smoke.

[0006] Accordingly, it is an object of the present invention to provide a non-flammable heated tobacco product and an electrically heated tobacco product in which the amount of a substance generated from the anti-stick component during use of the non-flammable tobacco product that has a negative effect, for example, is reduced. , the taste of smoke.

The solution of the problem

[0007] As a result of intensive research, the inventor of the present invention arrived at the present invention based on the following findings. Namely, when the content of the lip-preventing agent is within a specific range in a specific area of the wrapped portion that is wrapped with the rim paper, peeling of the skin of the lips can be avoided, that is, proper lip-preventing properties can be obtained, and the amount of the substance formed during the time of use of a tobacco product that is heated without burning and has a negative effect on, for example, the taste of smoke, can be reduced.

[0008] The gist of the present invention is as follows: [1] A non-burning heated tobacco product, comprising a tobacco rod, a mouthpiece, and a wrapped portion in which the tobacco rod and the mouthpiece are wrapped with rim paper,

wherein at least a portion of the tipping paper is coated with an anti-stick agent,

wherein the wrapped part consists of a first region and a second region in the longitudinal direction of a non-burning heated tobacco product, wherein the first region includes an end of a non-burning heated tobacco product on the mouthpiece side, and the second region includes an end on the side of the tobacco rod, and

in which the first region and the second region satisfy the following condition (A):

(A) (content of anti-stick agent per unit area in the first region) > (content of anti-stick agent per unit area in the second region).

[2] The flameless heated tobacco product of [1], wherein the first region is the region from the mouthpiece-side end of the flameless heated tobacco product to a position 17 mm from said mouthpiece-side end of the flameless heated tobacco product in longitudinal direction of the non-burning heated tobacco product, and

wherein the second region is the region from said position at a distance of 17 mm to the tobacco rod-side end of the wrapped portion in the longitudinal direction.

[3] The flameless heated tobacco product of [1], wherein the first region is the region from the mouthpiece-side end of the flameless heated tobacco product to a position at a distance of 42.5% of the length of the wrapped portion in the longitudinal direction of the flameless heated tobacco product from the mouthpiece-side end of the non-burning heated tobacco product, and

wherein the second region is the region from said position at a distance of 42.5% to the tobacco rod end of the wrapped portion in the longitudinal direction.

[4] The non-burning heated tobacco product according to [1], wherein the mouthpiece includes a cooling part and a filtering part.

[5] The non-burning heated tobacco product according to [4], in which the cooling part has a plurality of holes, and the holes of the plurality are arranged in the circumferential direction of the outer peripheral surface of the cooling part,

wherein the first region is the region from the end of the non-burning heated tobacco product on the side of the mouthpiece to the position where the holes are located along the length of the wrapped portion, in the longitudinal direction of the non-burning heated tobacco product, and

wherein the second region is the region from said position, in which the holes are placed, to the tobacco rod-side end of the wrapped portion in the longitudinal direction.

[6] The non-burning heated tobacco product according to any one of [1] to [5], wherein the ratio of the content of the anti-stick agent per unit area in the second region to the content of the anti-stick agent per unit area in the first region is 1/ 2 or less.

[7] The non-burning heated tobacco product according to [6], wherein the ratio of the content of the anti-stick agent per unit area in the second region to the content of the anti-stick agent per unit area in the first region is 1/4 or less.

[8] The non-burning heated tobacco product according to any one of [1] to [7], wherein the content of the anti-lip agent per unit area in the second region is less than 0.56 mg/mm ² .

[9] The non-burning heated tobacco product according to any one of [1] to [8], wherein the anti-stick agent contains at least nitrocellulose or ethylcellulose.

[10] An electrically heated tobacco product comprising an electrical heating device and a non-burning heated tobacco product according to any one of [1] to [9], wherein the electrical heating device comprises a heating element, a battery pack that serves as a power source for the heating element, and a control unit for controlling the heating element, and the non-burning heated tobacco product is inserted into the electric heating device so that the non-burning heated tobacco product comes into contact with the heating element.

Useful effects of the invention

[0009] The present invention provides a flame-retardant heated tobacco product and an electrically heated tobacco product in which the amount of a substance generated from an anti-sticking agent component during use of a flame-retardant tobacco product that adversely affects, for example, the taste of smoke, is reduced. .

Brief description of the drawings

[0010] [Fig. 1] Fig. 1 is a schematic diagram illustrating a non-burning heated tobacco product according to an embodiment.

[Fig. 2] Fig. 2 is a schematic diagram illustrating partial modifications of a non-burning heated tobacco product according to an embodiment.

[Fig. 3] Fig. 3 is a schematic diagram illustrating a partial modification of a non-burning heated tobacco product according to an embodiment.

[Fig. 4] Fig. 4 is a schematic diagram illustrating examples of openings in a non-burning heated tobacco product according to an embodiment.

[Fig. 5] Fig. 5 is a schematic diagram illustrating an electrically heated tobacco product according to an embodiment in which the outer peripheral surface of the tobacco rod is heated.

[Fig.6] Fig. 6 is a schematic diagram illustrating an electrically heated tobacco product according to an embodiment in which the inside of a tobacco rod is heated.

Description of Embodiments

[011] Embodiments of the present invention will now be described in detail. However, the embodiments described below are examples (representative examples) of embodiments of the present invention, and the present invention is not limited thereto as long as the gist thereof is retained.

In the schematic representations in FIG. 1 through 6 illustrating non-burning heated tobacco products, the various components are enlarged or reduced in size for ease of illustration, and are not shown in actual sizes and proportions according to embodiments of the present invention.

The concept of the wrapped portion is a portion including the rim paper and a lip-preventing agent applied to the rim paper.

In addition, in this description, the "outside" of the wrapped portion means the side that comes into contact with the user's lips during use of the non-burning heated tobacco product, and the "inside" of the wrapped portion is the reverse side of the side described above.

In addition, in this description, when a range is specified using numerical values or physical property values with "to" in between, it should be understood that the range includes values on both sides.

[0012]

<1. Non-burning heated tobacco product>

The non-burning heated tobacco product according to an embodiment of the present invention (hereinafter simply referred to as "non-burning heated tobacco product") includes a tobacco rod, a mouthpiece, and a wrapped portion in which the tobacco rod and the mouthpiece are wrapped with rim paper.

The anti-stick agent is applied to at least a portion of the rim paper.

The wrapped part consists of a first region and a second region in the longitudinal direction of a non-burning heated tobacco product, wherein the first region includes a mouthpiece-side end of a non-burning heated tobacco product, and the second region includes a tobacco rod-side end.

The first region and the second region satisfy the following condition (A):

(A) (content of anti-stick agent per unit area in the first region) > (content of anti-stick agent per unit area in the second region).

Fig. 1 illustrates an example of a non-burning heated tobacco product according to the above-described embodiment. The non-burning heated tobacco product will now be described with reference to FIG. 1. Although in FIG. 1, the anti-lip agent is applied to one side of the tipping paper with a uniform density over its entire area, the anti-lip agent is not limited to this, and instead it can be applied at different densities depending on the locations. This applies to other figures as well.

The direction indicated by h in FIG. 1 represents the longitudinal direction of a non-burning heated tobacco product.

[0013] The non-burning heated tobacco product is preferably a rod-shaped object having an aspect ratio of 1 or more, the aspect ratio being defined as follows:

aspect ratio = h/w

where w is the width of the bottom surface of the rod-shaped object (the width of the bottom surface on the side of the tobacco rod in this specification), and h is the height. Preferably, h≥w is satisfied. As described above in this description, the longitudinal direction is defined as the direction indicated by the letter h. Therefore, even when w>h, the direction indicated by h is called the longitudinal direction for convenience. The shape of the bottom surface is not limited, and may be, for example, a polygonal shape, a rounded polygonal shape, a round shape, or an elliptical shape. When the bottom surface is round, the width w is equal to the diameter. When the bottom surface is elliptical, the width w is equal to the length along the major axis. When the bottom surface is polygonal or circular polygonal, the width w is equal to the diameter of the circumcircle or the length along the major axis of the circumscribed ellipse. In the embodiment illustrated in FIG. 1, for example, the bottom surface is circular and therefore the width w is equal to its diameter. The diameter is equal to the width w, and the length in the direction orthogonal to the bottom surface is equal to the height h.

[0014] The length h of the heated non-burning tobacco product in the longitudinal direction is not particularly limited. For example, the length h is usually 35 mm or more, preferably 40 mm or more, and more preferably 45 mm or more. In addition, the length h is usually 105 mm or less, preferably 95 mm or less, and more preferably 85 mm or less.

The width w of the bottom surface of the rod-shaped body of the non-burning heated tobacco product is not particularly limited. For example, the width w is usually 5 mm or more, and preferably 5.5 mm or more. In addition, the width w is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.

The components of the non-burning heated tobacco product will now be described.

[0015]

<1-1. Wrapped Part>

[First area and second area of wrapped part]

As illustrated in FIG. 1, the wrapped portion in which the tobacco rod 10 and the mouthpiece 11 are wrapped with the rim paper 12 is composed of a first region 12a and a second region 12b. Although not illustrated in FIG. 1, as described below, 10 the tobacco rod is formed by wrapping the tobacco filler with wrapping paper. The anti-lip agent 13 is applied to at least a portion of the rim paper.

The first region 12a is a region including a mouthpiece-side end of the non-burning heated tobacco product in the longitudinal direction of the non-burning tobacco product. The second region 12b is the region provided on the tobacco rod side of the first region in the wrapped portion. The first region and the second region are adjacent to each other.

On FIG. 1, the anti-stick agent in the first region is indicated by 13a, and the anti-stick agent in the second region is indicated by 13b.

The content of the anti-lip agent per unit area in the first region may be referred to simply as the "amount of the anti-stick agent in the first region", and the content of the anti-lip agent per unit area in the second region may be referred to simply as the "amount of the anti-stick agent in the first region". lips means in the second area".

[0016] In the non-flammable heated tobacco product of the related prior art, the anti-lip agent is typically applied to the surface of the tipping paper over its entire area, and the density of the anti-lip agent on that surface does not change. In other words, the lip anti-stick agent is not applied to satisfy the condition (A) described above. In this case, although the purpose of applying the anti-stick agent to obtain sufficient anti-stick properties is achieved, substances formed from the anti-stick agent when the anti-stick agent is heated are released from the entire surface. tip paper during use.

On the contrary, when the lip-preventing agent is applied to satisfy the above-described condition (A), the lip-preventing agent in the first region provides sufficient lip-preventing properties. In addition, since the amount of the anti-lip agent in the second region is less than the amount of the anti-lip agent in the first region, as compared to the non-burning heated tobacco product of the related art, the formation of substances from the anti-stick agent during use decreases. The anti-stick agent is applied to at least a portion of the tip paper. In order to obtain sufficient anti-stick properties, the anti-stick agent is preferably applied to at least a portion of the area in which the filter portion described below, which can be included in the mouthpiece, is located immediately below the rim paper. It is also preferable to apply an anti-stick agent to the entire area.

The shape of the first region and the second region are not specifically limited. Particularly preferred forms will now be described.

[0017]

(1) First form

According to the first shape of the first region and the second region, the first region is a region from the mouthpiece-side end of the non-burning heated tobacco product to a position 17 mm from said mouthpiece-side end of the non-burning heated tobacco product in the longitudinal direction of the non-burning heated tobacco product. products. The second area is the area from the mentioned position at a distance of 17 mm to the tobacco rod end of the wrapped portion in the longitudinal direction.

In a typical mode of use of a flameless heated tobacco product, when an anti-stick agent is applied to the lips in a first region extending from the mouthpiece-side end of the flameless heated tobacco product to a position at a distance of 17 mm, considering the area of contact between the flameless heated tobacco product and smoker's lips during use (also referred to as "lip contact area"), sufficient anti-stick properties can be obtained. In addition, by reducing the amount of the anti-lip agent applied in the second region extending from the position at a distance of 17 mm to the end of the wrapped portion in the tobacco rod side in the longitudinal direction, the amount of substances generated from the anti-stick agent during usage can be reduced.

[0018] The boundary position between the first region and the second region, for the reason described above, may be at a distance of 17 mm from the mouthpiece-side end of the non-burning heated tobacco product. However, in order to reduce the amounts of substances generated from the anti-stick agent during use, said distance is preferably 15 mm, more preferably 13 mm, and particularly preferably 10 mm. When the above-described position shifts toward the mouthpiece-side end more strongly, it becomes difficult to obtain sufficient lip-preventing properties.

[0019]

(2) Second form

According to the second shape of the first region and the second region, the first region is the region from the mouthpiece-side end of the non-burning heated tobacco product to a position at a distance of 42.5% of the length of the wrapped portion in the longitudinal direction of the non-burning heated tobacco product from the mouthpiece-side end. heated without burning tobacco product. The second area is the area from the mentioned position at a distance of 42.5% to the tobacco rod end of the wrapped portion in the longitudinal direction.

Similar to the first form described above, given the normal mode of use of a flame-retardant tobacco product, where the anti-sticking agent is applied to the lips in the first region from the mouthpiece-side end of the flame-retardant tobacco product to a position at a distance of 42.5% of the length of the wrapped portion in the longitudinal direction of a non-burning heated tobacco product, sufficient anti-stick properties can be obtained. In addition, the amounts of substances generated from the anti-stick agent during use can be reduced.

[0020] The position of the boundary between the first region and the second region for the above-described reason may be a position where the percentage of the distance from the end of the mouthpiece side of the non-burning heated tobacco product relative to the length of the wrapped portion in the longitudinal direction of the non-burning heated tobacco product is 42.5%. . However, in order to reduce the amounts of substances generated from the anti-stick agent during use, said percentage is preferably 37.5%, more preferably 32.5%, and particularly preferably 25%. When the above-described position shifts toward the mouthpiece-side end more strongly, it becomes difficult to obtain sufficient lip-preventing properties.

[0021]

(3) Third form

the mouthpiece of the non-burning heated tobacco product according to the present embodiment may include a cooling portion and a filter portion. In this case, a third shape of the first region and the second region may be used. In the third form, the cooling part has a plurality of holes, and these holes are placed in the circumferential direction of the outer peripheral surface of the cooling part. The first region is the region from the mouthpiece-side end of the non-burning heated tobacco product to the position where the holes are located along the length of the wrapped portion in the longitudinal direction of the non-burning tobacco product. The second area is the area from the mentioned position, where the holes are placed, to the end of the wrapped part, which is on the side of the tobacco rod, in the longitudinal direction.

The holes in the cooling part allow dilution air to flow to a region closer to the mouth end end than said holes to allow adjustment of the flow of air and smoke in the cooling part and the filtering part during use. Generally, the area closer to the mouthpiece-side end than the position where the holes are provided serves as the lip contact area. Accordingly, when the lip-preventing agent is applied in a region closer to the mouthpiece-side end than the position of said holes, sufficient lip-preventing properties can be obtained. As described above in the description of the first form, by reducing the amount of anti-stick agent applied to the second area, it is possible to reduce the amounts of substances generated from the anti-stick agent during use. In particular, the flow of air and smoke in the mouthpiece generally varies at the position of said openings, and the temperature of the wrapped portion in the area closer to the end on the mouthpiece side than said openings is significantly lower than the temperature of the wrapped portion in the area closer to the tobacco rod than said openings. holes. Therefore, the amounts of substances generated from the anti-lip agent can be significantly reduced by reducing the content of the anti-lip agent in the wrapped portion in a region closer to the tobacco rod than the position of said openings.

In the art, the above-described holes may be referred to as "ventilation holes".

[0022] The holes are placed in the circumferential direction of the outer peripheral surface of the cooling part (more specifically, in a plane that passes through the cooling part and which is perpendicular to the longitudinal direction of the non-burning heated tobacco product). The number of sets of holes arranged in the circumferential direction (also referred to as "circumferential placement sets") is not particularly limited, and may be two or more. In this case, since the circumferential placement sets are generally located outside the lip contact region, one of the circumferential placement sets that is closest to the mouth end end serves as the circumferential placement set at the boundary between the first region and the second region.

The position of the holes is not specifically limited. However, in order to reduce the amounts of substances formed from the anti-stick agent during use, the holes are preferably located 17 mm from the mouthpiece-side end of the non-burning heated tobacco product along the length of the wrapped portion in the longitudinal direction of the non-burning tobacco product. Said distance is more preferably 15 mm, even more preferably 13 mm and particularly preferably 10 mm.

[0023]

[Structure of the wrapped part]

Structures of the tipping paper included in the wrapped portion and the anti-lip agent applied thereto are not specifically limited. As shown in FIG. 1, the anti-stick lip agent is generally applied to the surface of a single sheet of tipping paper over its entire area. However, the shapes illustrated in FIG. 2(a)-2(f) described below and combinations thereof may also be used.

Fig. 2(a): A form in which one sheet of tipping paper has a portion on which no anti-sticking agent is applied to the lips.

Fig. 2(b): A form in which one sheet of tipping paper has no anti-lip agent applied in the second area.

Fig. 2(c): A form in which one sheet of tipping paper has an anti-lip agent having a density gradient along its surface.

Fig. 2(d): A form in which the anti-stick agent is applied to two or more sheets of tipping paper arranged so as to overlap each other.

Fig. 2(e): A form in which an anti-stick agent is applied to each of two or more sheets of rim paper arranged so as to overlap each other.

Fig. 2(f): A form in which the anti-stick agent is applied to two or more sheets of tipping paper arranged so that they partially overlap each other.

Among the shapes illustrated in FIG. 2(a)-2(f), the shape illustrated in FIG. 2(b) is preferably used to reduce the amounts of substances generated from the anti-stick agent during use.

[0024] The degree of sizing of the wrapped portion in the first region is not specifically limited. However, in order to improve release from the lips after use, the sizing degree is usually 0.2 seconds or more, preferably 0.3 seconds or more, and more preferably 0.4 seconds or more. In addition, the sizing degree is usually 2.0 seconds or less, preferably 1.5 seconds or less, and more preferably 1.0 second or less.

The degree of sizing of the wrapped portion in the second region is not particularly limited. However, considering the influence on the taste of the smoke, the sizing degree is usually 0.01 seconds or more, preferably 0.03 seconds or more, and more preferably 0.05 seconds or more. In addition, the sizing degree is usually 0.20 seconds or less, preferably 0.15 seconds or less, and more preferably 0.10 seconds or less.

The degree of sizing can be measured under the following conditions:

Measuring device: Surface and sizing tester model EST 12 (manufactured by Nihon Rufuto Co., Ltd.)

Sample (test paper): The paper was placed in an environment with a temperature of 23°C and a relative humidity of 50% for 24 hours, and then it was cut into a size of 20 mm×70 mm.

Measuring method: the test paper is immersed in the test liquid (water), which fills the measuring cell of the above measuring device. From now on, low energy ultrasonic waves are emitted in the thickness direction. The wetting and impregnation of the test paper from the moment the test paper comes into contact with the test liquid can be estimated by measuring the change over time in the intensity of the ultrasonic waves received by the ultrasonic wave receiver. In the present invention, assuming that the measurement start time is the time when the test paper is completely immersed in the test liquid, the sizing degree is the time from the start of measurement to the time when the obtained permeability peak is at the maximum value (MAX value).

[0025] In order to improve release from the lips after use, the contact angle between the wrapped part and water is preferably 90° or more, more preferably 100° or more, in both the first region and the second region.

The contact angle can be measured under the following conditions:

Measuring device: Contact angle meter model DMC-MC3 (manufactured by Kyowa Electronic Instruments Co., Ltd.)

Sample (test paper): The paper was placed in an environment with a temperature of 23°C and a relative humidity of 50% for 24 hours, and then it was cut into a size of 20 mm×70 mm.

Measurement method: the test paper is attached to the glass slide with double-sided tape. The contact angle can be measured using the θ/2 method as a method for estimating the contact angle with a liquid (water) droplet volume of 7 μl and a measurement start time of 1000 ms.

[0026]

[Body Paper]

The material of the tipping paper included in the wrapped portion 12 is not particularly limited, and may be, for example, paper made from ordinary plant fibers (pulp), a sheet made from polymer-based chemical fibers (polypropylene, polyethylene, nylon, etc.). .), resin-based sheet or metal foil such as aluminum foil. Rim paper as used herein means a sheet that connects a plurality of segments of a non-burning heated tobacco product, such as a tobacco rod and a mouthpiece.

[0027] The method for manufacturing tipping paper is not particularly limited, and a conventional method can be used. For example, when pulp is the main component, the texture can be uniformed in a papermaking process using a Fourdrinier paper machine, a cylindrical paper machine, a Tanmo complex cylindrical paper machine, or the like. If necessary, a wet paper strengthening agent may be added to waterproof the wrapping paper, or a sizing agent may be added to adjust the print condition of the wrapping paper. In addition, internal papermaking additives such as aluminum sulfate, various anionic, cationic, nonionic, or amphoteric release enhancers, freeness improvers and paper hardeners, and papermaking additives such as colorants, pH adjusters, antifoam agents, tar control agents and slime control agents.

The pulp can be made from wood pulp, such as softwood pulp or hardwood pulp, or can be obtained by mixing non-wood pulp, such as flax pulp, hemp pulp, sisal pulp and esparto, which are commonly used for the production of wrapping paper for smoking products. Examples of the types of pulps that can be used include chemical pulp obtained, for example, by sulphate pulping, acid, neutral or alkaline sulfite pulping, or sodium chloride pulping, ground pulp, chemically ground pulp and thermomechanical pulp. .

[0028] The height of the tipping paper 12 in the longitudinal direction is not specifically limited. However, considering the amount of aerosol to be delivered and the workability, the height is usually 15 mm or more, preferably 20 mm or more, and more preferably 25 mm or more. In addition, the height is usually 55 mm or less, and preferably 50 mm or less.

The thickness of the tipping paper 12 is not specifically limited. However, considering the amount of aerosol to be delivered and workability, the thickness is usually 30 μm or more, and preferably 35 μm or more. In addition, the thickness is usually 150 μm or less, and preferably 140 μm or less.

[0029] The basis weight of the rim paper 12 is not specifically limited. However, considering the amount of aerosol to be delivered and production suitability, the basis weight is usually 30 g/m ² or more, and preferably 35 g/m ² or more. In addition, the basis weight is usually 150 g/m ² or less, and preferably 140 g/m ² or less.

The air permeability of the rim paper 12 is not specifically limited. However, in view of the amount of delivered aerosol and workability, the air permeability is preferably 10 Coresta units or less.

[0030]

<1-2. Lip Prevention >

The dry matter content of the anti-stick agent according to the present embodiment may be 100% nitrocellulose, 100% ethylcellulose, or a mixture of nitrocellulose and ethylcellulose in any ratio, considering the ease of analysis and the actual dry matter content. The dry matter content of the anti-stick agent may instead be a mixture that further contains a component other than nitrocellulose and/or ethylcellulose.

In the field of non-burning heated tobacco products, for example, the influence of the anti-stick agent on the taste of smoke has not been investigated. The inventor of the present invention prepared a non-flammable heated tobacco product including a wrapped portion having an anti-sticking agent applied to the entire surface of the tobacco product, as well as a non-flammable heated tobacco product that satisfies the above-described condition (A), and conducted an experiment to compare them from the point view of the TSNA content in the non-burning heated tobacco product after use. The result showed that the non-burning heated tobacco product including the wrapper portion with the anti-lip agent applied to its entire surface contained more TSNA than the non-burning heated tobacco product satisfying condition (A). The inventor of the present invention considered that the reason for this is as follows.

A typical component of the anti-stick agent is nitrocellulose, which is the nitrogen ester of cellulose. Nitrocellulose is usually obtained by treating cellulose with an acid mixture of nitric acid and sulfuric acid. When heated, nitrocellulose decomposes and nitric acid is formed. The resulting nitric acid reacts with a minor alkaloid contained in the tobacco product material to form TSNA. In a non-burning heated tobacco product including a wrapped portion with an anti-sticking agent applied to its entire surface, the area in which the anti-sticking agent is heated is larger than in a non-burning heated tobacco product including a wrapped portion. with an anti-sticking agent applied to its area. Therefore, heat from the heater is directly or indirectly transferred to the lip preventing agent, and a part of the lip preventing agent is heated excessively. This is considered the reason for the above result.

TSNA is a generic term for tobacco-specific nitrosamines. Typical examples of TSNA include N'-nitrosonornicotine (NNN), 4-(N-nitrosomethylamino)-1-(3-pyridyl)-1-butanone (NNK), N'-nitrosoanatabine (NAT) and N'-nitrosoanabasine (NAB) .

[0031] When the anti-stick agent contains nitrocellulose, TSNA is formed as described above. The anti-sticking agent also contains components other than nitrocellulose, which can form a substance that has a negative effect on, for example, the taste of smoke. For example, ethylcellulose, which may be contained in the anti-stick agent, may cause an undesirable change in, for example, the taste of the smoke.

The material contained in the anti-stick agent according to the present embodiment is not particularly limited, and may be, for example, nitrocellulose, ethylcellulose, or a mixture thereof. With regard to reducing the formation of TSNA, a particularly beneficial effect can be achieved if the anti-stick agent contains nitrocellulose.

[0032] The anti-stick agent may contain components other than nitrocellulose and ethylcellulose as described above. For example, a filler such as calcium carbonate may be included. The components of the anti-stick agent may be commercially available materials.

[0033] The method for applying the anti-stick agent to the tip paper is not particularly limited, and a conventional coating method can be used. The lip anti-stick agent may be formulated in the form of typically 1.0 to 30.0 wt. % aqueous or ethyl acetate solution and aqueous or ethyl acetate solution can be applied to the tip paper according to an embodiment of the present invention using, for example, a suitable printing method such as gravure printing. Instead, the anti-lip agent may be applied to the tip paper according to an embodiment of the present invention by known means other than printing, such as an opaque inkjet method, a spray method, or an impregnation method.

The anti-stick agent is to be applied to at least a portion of the outer surface of the tipping paper in the first region. The anti-sticking agent may be further applied to the inner surface of the tipping paper. However, in order to reduce the amounts of substances generated from the anti-stick agent during use, the anti-stick agent is preferably not applied to the inner surface of the tipping paper.

[0034]

[Contents of anti-stick agent]

As described above, the content of the anti-stick agent satisfies condition (A).

When condition (A) is satisfied, sufficient anti-stick properties can be achieved, and the formation of substances from the anti-stick agent during use can be reduced. Accordingly, the amount of the substance having a negative effect on the taste of the smoke can be reduced.

The ratio of the content of the anti-stick agent per unit area in the second region to the content of the anti-stick agent per unit area in the first region is not particularly limited. However, in order to provide sufficient anti-stick properties and reduce the amounts of substances generated from the anti-stick agent during use, said ratio is preferably 1/2 or less, more preferably 1/4 or less, particularly preferably 1/6 or less. , and most preferably 1/8 or less.

[0035] The content of the anti-stick agent per unit area in the first region is not particularly limited as long as it exceeds the content of the anti-stick agent per unit area in the second region, but it is generally 0.20 mg/mm ² or more, and 1.00 mg/mm ² or less, and preferably 0.25 mg/mm ² or more and 0.75 mg/mm ² or less.

[0036] The content of the anti-stick agent per unit area in the second region is not particularly limited. However, in order to reduce the amounts of substances generated from the anti-stick lip agent during use, to reduce the amounts of substances generated from the anti-stick lip agent during use, the content of the anti-stick lip agent per unit area in the second region is preferably less than 0, 56 mg/mm ² , more preferably less than 0.28 mg/mm ² , particularly preferably less than 0.14 mg/mm ² , and most preferably 0 mg/mm ² , which means no anti-stick agent not applied.

The method for measuring the content of the anti-stick agent is not particularly limited. For example, the rim paper of the wrapped portion is removed from the non-burning heated tobacco product and cut into a first region and a second region. The weight is then measured for each area, and the weight of the applied anti-stick agent is calculated by subtracting the weight of the tipping paper in each area. Then, the calculated mass is divided by the area of each area to determine the content of the anti-stick agent per unit area in each of the first area and the second area.

If possible, the value obtained by dividing the mass of the anti-stick agent applied during manufacture by the area may be used. Alternatively, a value obtained by dividing the weight of the anti-stick agent, as determined by the change in weight of the tipping paper caused by the application of the anti-lip agent, by the area of the area to be examined can be used.

The anti-sticking agent turns brown when heated to a certain level. Therefore, as a simple way of rough estimation of the content of the anti-sticking agent to the lips, it is possible to observe the color change of the surface of the rim paper after using a non-burning heated tobacco product.

[0037] The content of the anti-stick agent can also be measured by an absorptive measurement. For example, when nitrocellulose is used as an anti-lip agent, its content can be calculated by the method described below.

First, a standard sample of the calibration curve is prepared in the manner described below and subjected to an absorptive measurement. In accordance with ASTM D3133-01, a calibration curve is generated from the results of an absorptive measurement performed on a standard calibration curve sample. The measurement sample is then obtained in the manner described below and subjected to an absorptive measurement. The mass of nitrocellulose contained in the measurement sample can be determined from the above-described calibration curve and the result of an absorptive measurement performed on the measurement sample. The amount of anti-stick agent applied to the area to be examined can be determined by dividing the mass by the area of the area to be examined.

When the anti-lip agent component is other than nitrocellulose, its content can be similarly measured, for example, by replacing the acetone described below with a solvent capable of dissolving said component and changing the absorption wavelength.

[0038]

<Production of standard calibration curve>

(1) About 6 g of a standard sample (pre-application anti-stick agent) is placed in a container such as a reconstitution flask and concentrated by evaporating the volatile components with an evaporator.

(2) The resulting non-volatile component, being dissolved in acetone, is pipetted into a 100 ml volumetric flask and diluted with acetone to 100 ml.

(3) Four 50 ml reconstitution flasks are prepared, and 0, 1, 3, and 5 ml of the solution obtained in step (2) are placed in the respective reconstitution flasks. Then 10, 9, 7 and 5 ml of acetone are added so that the total amount is 10 ml in each reconstitution flask. Then, 10 ml of 10% KOH is added to each of the recovery flasks. The recovery flasks were placed in cooling tubes and refluxed for 1 hour in a water bath at a constant temperature of 60°C.

(4) After refluxing, the solutions are cooled to room temperature on ice and filtered with filter paper. The resulting filtrate is placed in a 50 ml volumetric flask and diluted with a mixed solution of acetone/water (weight ratio is 2/1).

[0039]

<Making a measurement pattern (for the first area)>

(1) The rim paper of the wrapped portion is removed from the non-burning heated tobacco product, and the first region is cut off and shredded. The rim paper pieces obtained by grinding are placed in a container such as an Erlenmeyer flask and 100 ml of acetone are added. Then ultrasonic extraction is carried out for 30 minutes.

(2) The resulting extract was transferred to a 300 ml reconstitution flask, and the acetone was evaporated using an evaporator. Then add 10 ml of acetone and 10 ml of 10% KOH and perform heating under reflux for 1 hour in a hot water bath at a temperature of 60°C.

(3) The recovery flask was cooled to room temperature on ice and filtered. The resulting filtrate is placed in a 50 ml volumetric flask and diluted with a mixed solution of acetone/water (weight ratio is 2/1).

[0040]

<1-3. tobacco rod>

The tobacco rod structure 10 is not particularly limited, and may be a conventional structure. For example, a 10 tobacco rod can be obtained by wrapping tobacco filler with wrapping paper.

[0041]

[Tobacco filler]

The structure of the tobacco filler is not particularly limited, and may be, for example, a structure consisting of a composition containing ground tobacco (hereinafter also referred to as the first tobacco filler), a structure consisting of a plurality of tobacco sheets described below (hereinafter also referred to as a second tobacco filler), or a structure , consisting of one tobacco leaf (hereinafter also referred to as the third tobacco filler).

the tobacco rod (also referred to simply as "tobacco rod" in this specification) is preferably rod-shaped. In such a case, the aspect ratio, which is the ratio of the height of the tobacco rod in the longitudinal direction to the width of the bottom surface of the tobacco rod, is preferably 1 or more.

The shape of the bottom surface of the tobacco rod is not limited, and may be, for example, a polygonal shape, a rounded polygonal shape, a round shape, or an elliptical shape. When the bottom surface is round, the width equals the diameter. When the bottom surface is elliptical, the width is equal to the length along the major axis. When the bottom surface is polygonal or circular polygonal, the width is equal to the diameter of the circumcircle or the length along the major axis of the circumscribed ellipse. In the embodiment illustrated in FIG. 1, for example, the bottom surface is circular and therefore the width is equal to its diameter. The diameter is equal to the width, and the length in the direction orthogonal to the bottom surface is equal to the height. The height and width of the tobacco filler included in the tobacco rod are preferably about 12 to 70 mm and about 4 to 9 mm, respectively.

the tobacco rod may include a portion to be adapted to, for example, a heating element for heating a non-burning heated tobacco product.

[0042] The first filler will now be described. The pulverized tobacco material contained in the first filler is not particularly limited, and known material such as lamina and midrib can be used. The material can be obtained by grinding and homogenizing dried tobacco leaves into particles having an average particle size of 20 to 200 μm, forming these particles into a sheet (hereinafter also referred to as homogenized sheet), and cutting the homogenized sheet. Alternatively, a so-called strand type can be used in which a homogenized sheet having a length similar to that of a tobacco rod in the longitudinal direction of the tobacco rod is cut in a direction substantially parallel to the longitudinal direction of the tobacco rod into pieces that fill the tobacco rod. The cut tobacco pieces preferably have a width of 0.5 to 2.0 mm to ensure proper filling of the tobacco rod. When the tobacco rod has a circumference of 22 mm and a length of 20 mm, the content of tobacco filler in the tobacco rod may be 200 to 800 mg per rod, and preferably 250 to 600 mg per rod. Tobacco leaves of various types of tobacco can be used to produce shredded tobacco and homogenized leaf. For example, flue-cured tobacco, burley tobacco, oriental tobacco, home-made tobacco, other types of tobacco and shag, or a mixture thereof, may be used. The mixture can be obtained by mixing the above described types of tobacco in accordance with the requirements to obtain the desired taste. Detailed information on types of tobacco is disclosed in "Tobacco Encyclopedia, Center for Tobacco Academic Research, 2009.3.31". There are many known methods for making a homogenized sheet, that is, grinding tobacco leaves into pieces and forming the pieces into a homogenized sheet. The first method is to manufacture a sheet using a paper manufacturing process. The second method is a method of mixing a suitable solvent such as water and ground tobacco leaves into a homogeneous mixture, pouring the homogeneous mixture onto a metal plate or tape with a metal plate, and drying the homogeneous mixture to form a cast sheet. The third method is a method of mixing a suitable solvent such as water and ground tobacco leaves into a homogeneous mixture and extrusion molding the homogeneous mixture into a sheet shape. Homogenized leaf types are detailed in "Encyclopedia of Tobacco, Center for Tobacco Academic Research, 2009.3.31".

[0043] The water content of the tobacco filler can be from 10 to 15 wt. % of the total amount of tobacco filler and preferably ranges from 11 to 13 wt. % of the total amount of tobacco filler. When the water content is in these ranges, staining of wrapping paper can be suppressed and workability during tobacco rod production can be improved.

The size and preparation method of the shredded tobacco contained in the first tobacco filler is not specifically limited. For example, shredded tobacco obtained by grinding dried tobacco leaves to a width of 0.5 to 2.0 mm can be used.

When ground tobacco is formed by grinding a homogenized leaf, the dried tobacco leaves can be ground into uniform particles having an average particle size of 20 to 200 μm, and these particles can be molded into a sheet. The sheet can then be shredded to a width of 0.5 to 2.0 mm.

[0044] The first tobacco filler comprises an aerosol precursor material from which aerosol smoke is generated. The type of aerosol starting material is not particularly limited, and extracts from various natural products and/or components thereof may be selected depending on the intended use. Examples of the aerosol starting material include glycerol, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

The content of the aerosol starting material in the first tobacco filler is not specifically limited. For sufficient aerosol formation and good smoke taste, the content of aerosol starting material is usually 5 wt. % or more, preferably 10 wt. % or more, and is usually 50 wt. % or less, preferably from 15 to 25 wt. %, from the total amount of tobacco filler.

[0043] The first tobacco filler may contain flavor. The type of flavoring agent is not particularly limited, and acetanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, amyl alcohol, amyl butyrate, transanethol, star anise oil, apple juice, Peruvian balsam, beeswax absolute, benzaldehyde can be used to provide good smoke flavor. , benzoin resinoid, benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2,3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute, [3-carotene, carrot juice, L -carvone, [3-caryophyllene, cassia bark oil, cedarwood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic acid, cinnamon alcohol, cinnamic cinnamate, citronella oil, DL-citronellol, clary sage extract, cocoa, coffee, cognac oil, coriander oil, cuminaldehyde, davana oil, δ-decalactone, γ-delicatone, decanoic acid, dill herb oil, 3,4-dimethyl-1,2-cyclopentanedione, 4,5-dimethyl-3-hydroxy-2, 5-dihydrofuran -2-one, 3,7-dimethyl-6-octenoic acid, 2,3-dimethylpyrazine, 2,5-dimethylpyrazine, 2,6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl hexanoate, ethyl isovalerate, ethyl lactate, ethyl laurate , ethyl levulinate, ethyl maltol, ethyl octanoate, ethyl oleate, ethyl palmitate, ethyl phenyl acetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin, ethyl vanillin glucoside, 2-ethyl-3, (5 or 6)-dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl- 2(5H)-furanone, 2-ethyl-3-methylpyrazine, eucalyptol, fenugreek absolute, genet absolute, gentian root infusion, geraniol, geranilacetate, grape juice, guaiacol, guava extract, γ_heptalactone, γ ^{- hexalactone} , hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexyl alcohol, hexylphenyl acetate, honey, 4-hydroxy-3-pentenoic acid lactone, 4-hydroxy-4-(3-hydroxy-1-butenyl)-3,5,5 -trimethyl-2-cyclohexen-1-one, 4-(para-hydroxyphenyl)-2-butanone, sodium 4-hydroxyundecanoate, immortelle absolute, β-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenyl acetate, isobutyl acetate, isobutylphenylacetate, jasmine absolute, kola nut tincture, labdanum oil, terpene-free lemon oil, licorice extract, linalool, linalyl acetate, lovage root oil, maltol, maple syrup, menthol, menthone, L-menthylacetate, para-methoxybenzaldehyde, methyl-2-pyrrolylketone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4'-methylacetophenone, methylcyclopentenolone, 3-methylvaleric acid, mimosa absolute, molasses, myristic acid, nerol, nerolidol, γ_ ^nonalactone , nutmeg oil, 5-octalactone, octanal, octanoic acid, orange flower oil, orange oil, orris root oil, palmitic acid, ω-pentadecalactone, peppermint oil, paraguayan petitgrain oil, phenethyl alcohol, phenethylphenyl acetate, phenylacetic acid, piperonal, plum extract, propenyl guaetol, propyl acetate, 3-propylidenephthalide, plum juice, pyruvic acid, extract raisin oil, rose oil, rum, sage oil, sandalwood oil, spearmint oil, styrax absolute, k alendula, tea distillate, α-terpineol, terpinyl acetate, 5,6,7,8-tetrahydroquinoxaline, 1,5,5,9-tetramethyl-13-oxacyclo(8.3.0.0(4.9)) tridecane, 2,3,5, 6-tetramethylpyrazine, thyme oil, tomato extract, 2-tridecanone, triethylcitrate, 4-(2,6,b-trimethyl-1-cyclohexenyl)2-buten-4-one, 2,6,6-trimethyl-2-cyclohexene -1,4-dione, 4-(2,6,6-trimethyl-1,3-cyclohexadienyl)2-buten-4-one, 2,3,5-trimethylpyrazine, ^{γ_undecalactone} , γ-valerolactone, vanilla extract , vanillin, veratraldehyde, violet leaf absolute, N-ethyl-p-menthane-3-carboxamide (WS-3) and ethyl 2-(p-menthane-3-carboxamide) acetate (WS-5). Menthol is especially preferred. These flavors may be used alone or in combination of two or more.

[0046] The flavoring content of the first tobacco filler is not specifically limited. In order to provide a good smoke taste, the content is usually 10,000 ppm or more, preferably 20,000 ppm or more, and more preferably 25,000 ppm or more. In addition, the content is usually 50,000 ppm or less, preferably 40,000 ppm or less, and more preferably 33,000 ppm or less.

[0047] The filler density of the first tobacco filler is not specifically limited. In order to ensure the performance of a non-burning heated tobacco product and to provide a good taste of smoke, the filler density is usually 250 mg/cm ³ or more, and preferably 320 mg/cm ³ or more. In addition, the filler density is usually 800 mg/cm ³ or less, and preferably 600 mg/cm ³ or less.

the tobacco rod is formed by wrapping wrapping paper around the first tobacco filler described above.

[0048] The second tobacco filler includes a plurality of tobacco sheets that are arranged concentrically. In this description, the expression "concentrically arranged" means that all tobacco sheets are located in such a way that their centers are in essentially the same position. In this description, the term "sheet" means an object having a pair of main surfaces that are essentially parallel to each other, and side surfaces. The second filler is formed by concentrically rolling a plurality of tobacco sheets in a direction orthogonal to the longitudinal direction of the non-burning heated tobacco product.

The base material of the sheets may be, for example, tobacco material such as tobacco powder. Particularly preferred is tobacco material. Each tobacco sheet is preferably formed from a base material sheet made from tobacco material and having a component capable of producing the desired flavor. Tobacco leaf, when heated, forms an aerosol. An aerosol source, for example a polyol such as glycerol, propylene glycol, or 1,3-butanediol, may be added as the aerosol starting material. The amount of aerosol starting material added is preferably 5 to 50 wt. %, more preferably from 15 to 25 wt. % by weight of dried tobacco sheets.

[0049] The tobacco sheets will now be described prior to their concentric arrangement.

The tobacco sheet can be suitably manufactured by a known method such as papermaking, a suspending process or a rolling process. You can also use a homogenized sheet, described in the description of the first tobacco filler.

In the case of paper production, the tobacco leaf can be made by a method comprising the following steps 1) Dried tobacco leaves are roughly ground and extracted with water, and the aqueous extract is separated from the residue. 2) The aqueous extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, and the reaction product is ground with a refiner and subjected to a papermaking process. 4) The concentrated aqueous extract is applied to the sheet obtained from the papermaking process and dried. Thus, a tobacco leaf is obtained. In this case, the step of removing some components such as nitrosamines can be additionally carried out (see Japanese Unexamined Patent Application Publication (PCT Application Translation) No. 2004-510422).

In the case of the suspending method, the tobacco leaf may be manufactured by a method including the following steps. 1) Mix water, pulp, binder and ground tobacco leaves. 2) The mixture is spread in a thin layer (poured) and dried. In this case, the step of removing some components, such as nitrosamines, can be additionally carried out by irradiating the suspension of the mixture of water, pulp, binder and ground tobacco leaves with ultraviolet rays or x-rays.

[0050] Alternatively, as described in International Publication No. 2014/104078, a tobacco sheet in the form of a non-woven fabric produced by a method comprising the following steps can be used. 1) Powdered tobacco leaves and a binder are mixed. 2) The mixture is placed between sheets of non-woven fabric. 3) The resultant stack is shaped by thermal melting to form a tobacco sheet having the shape of a non-woven web.

The types of tobacco leaves used as material for the methods described above may be the same as those mentioned above in the description of the first filler.

The composition of the tobacco leaf is not specifically limited. For example, the content of tobacco material (tobacco leaves)

preferably ranges from 50 to 95 wt. % of the total weight of the tobacco leaf. The tobacco leaf may contain a binder. Examples of the binder include guar gum, xanthan gum, carboxymethyl cellulose (CMC), and sodium carboxymethyl cellulose (CMC-Na). The amount of binder is preferably from 1 to 20 wt. % of the total weight of the tobacco leaf. The tobacco leaf may additionally contain other additives. Examples of additives include filler such as pulp. This description uses a variety of tobacco sheets. All tobacco sheets may have the same composition or physical properties. Alternatively, some or all of the tobacco sheets may have different compositions or physical properties.

[0051] The second tobacco filler can be made by preparing a plurality of tobacco sheets having different widths, stacking these tobacco sheets on top of each other so that their width decreases from bottom to top to form a stack, and twisting the stack with a forming tube. According to this manufacturing method, the tobacco sheets are drawn in the longitudinal direction and arranged concentrically with respect to the longitudinal axis. Between the longitudinal axis and the innermost tobacco sheet, a seating portion can be provided which extends in the longitudinal direction.

According to this method of manufacture, the stack is preferably prepared in such a way that tobacco sheets adjacent to each other have non-contact areas with each other after the rolling process.

Flavor flow paths so that flavor components can be efficiently delivered are provided when there are non-contact areas (gaps) between the tobacco sheets where the tobacco sheets do not come into contact with each other. Since heat from the heater can be transferred to the outer tobacco sheets through portions of the tobacco sheets that are in contact with each other, the heat can be transferred efficiently.

[0052] Non-contact areas where the tobacco sheets do not contact each other can be formed between the tobacco sheets, for example by using embossed tobacco sheets, by stacking the tobacco sheets without joining adjacent tobacco sheets over their entire area, or by stacking the tobacco sheets so that so that adjacent tobacco sheets are partially connected to each other. Alternatively, the tobacco sheets may be stacked such that adjacent tobacco sheets are loosely bonded over all or part of the area so that the tobacco sheets separate from each other after the rolling process.

To prepare a tobacco rod including wrapping paper, the wrapping paper described above may be provided at the bottom of the stack.

The seat may be formed by placing a tubular plug, such as a mandrel, on top of the stack and removing the plug after the second tobacco filler has been formed.

The thickness of each tobacco sheet is not specifically limited. However, in order to achieve a good balance between heat transfer efficiency and strength, the thickness is preferably 200 to 600 μm. The tobacco sheets may either have the same thickness or different thicknesses.

The number of tobacco sheets that form the second tobacco filler is not particularly limited and may be, for example, two, three, four, five, or six.

[0053] The third tobacco filler consists of a single folded tobacco leaf. This sheet has a length similar to that of a tobacco rod in the longitudinal direction. The sheet may be a so-called folded sheet which is folded many times along lines parallel to the longitudinal direction of the tobacco rod. In order to achieve a good balance between heat transfer efficiency and strength, the thickness of this sheet is preferably between 200 and 600 μm.

The base material of the sheet used as the third tobacco filler may be similar to the base material of the second tobacco filler.

[0054]

[Wrapping]

The structure of the wrapping paper is not particularly limited, and ordinary wrapping paper may be used. For example, the wrapping paper base paper may be cellulose fiber paper, more specifically hemp, wood, or mixtures thereof. The term "wrapping paper" as used herein means paper for wrapping tobacco filler.

The wrapping paper may contain a filler, and the type of this filler is not limited. The filler may be, for example, a metal carbonate such as calcium carbonate or magnesium carbonate, a metal oxide such as titanium oxide or alumina, a metal sulfate such as barium sulfate or calcium sulfate, a metal sulfide such as zinc sulfide, quartz, kaolin , talc, diatomite or gypsum. In particular, in order to improve whiteness and opacity and increase the heating rate, it is preferable that calcium carbonate be contained.

The relative content of the filler in the wrapping paper is not particularly limited and is usually from 1 to 50 wt. %, preferably from 5 to 45 wt. %, more preferably from 10 to 42 wt. % and particularly preferably from 20 to 40 wt. %. The content of calcium carbonate, for example, can be determined by measuring the ash content or by quantitative determination of calcium ions after extraction.

When the ratio is below the lower limits of the above-described ranges, the wrapping paper burns easily. When the ratio exceeds the upper limits of the above-described ranges, the strength of the wrapping paper is greatly reduced and the properties of the wrapper deteriorate.

[0055] Various auxiliaries other than the base paper and said filler may be added to the wrapping paper. For example, a water resistance improving agent may be added to improve water resistance. The water resistance improver contains a wet paper strengthening agent (WS agent) and a sizing agent. Examples of the wet paper strengthener include urea-formaldehyde resin, melamine-formaldehyde resin, and polyamide epichlorohydrin (PAE). Examples of the sizing agent include rosin soap, alkyl ketene dimer (AKB), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification rate of 90% or more.

As an aid, a paper strength enhancer may be added. The paper strength enhancer can be, for example, polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin or polyvinyl alcohol. In particular, a very small amount of oxidized starch is known to serve to improve breathability (Japan Unexamined Patent Application Publication No. 2 017-218699).

The wrapping paper may be suitably coated.

[0056] The coating agent may be applied to at least one of two surfaces, i.e. the front and back surfaces of the wrapping paper. Any coating agent may be used, but a coating agent capable of forming a film on the surface of the paper and reducing liquid permeability is preferred. Examples of the coating agent include alginic acid and its salts (e.g. sodium salts), polysaccharides such as pectin, cellulose derivatives such as ethylcellulose, methylcellulose, carboxymethylcellulose and nitrocellulose, and starch and its derivatives (e.g. ether derivatives such as carboxymethyl starch, hydroxyalkyl starch, and cationic starch, as well as ester derivatives such as starch acetate, starch phosphate, and starch octenyl succinate).

[0057] The basis weight of wrapping paper is typically 20 to 45 g/m ² and preferably 25 to 40 g/m ² . When the basis weight is within these ranges, proper strength and wrap properties can be obtained.

The air permeability of wrapping paper is typically 0 to 120 Coresta units, preferably 5 to 100 Coresta units, and more preferably 10 to 80 Coresta units. When the air permeability is within these ranges, proper smoke strength and flavor can be obtained.

[0058]

<1-4. mouthpiece>

The structure of the non-burning heated tobacco product 1 is not particularly limited, and may be a conventional structure. For example, referring to FIG. 3, a cooling portion 15, a filter portion 16, or a combination thereof may be provided.

[0059]

[Cooling part]

The structure of the cooling part is not particularly limited as long as the cooling part performs the function of cooling the mainstream tobacco smoke. For example, the cooling portion may be formed by rolling thick paper into a cylindrical shape. In such a case, the cylindrical shape has a hollow space within it, and the vapor containing the aerosol feed material and tobacco flavor components comes into contact with the air in the hollow space and cools.

[0060] As illustrated in FIG. 3, the non-burning heated tobacco product 1 may have an opening (not illustrated) through which air is supplied from the outside to the cooling portion 15 and the tipping paper portion 12, which may be coated with an anti-lip agent. The opening allows air to enter the cooling portion 15 from the outside during use. Accordingly, the vapor containing the initial material for the aerosol and the aromatic components of tobacco, formed when the tobacco rod is heated, comes into contact with the outside air, cools down and liquefies. Thus, the formation of an aerosol can be accelerated. As illustrated in FIG. 4 and as mentioned above in the description of the third shape in "1-1. Wrapped portion", when the cooling portion 15 has a plurality of holes 18, the holes 18 are arranged in the circumferential direction of the outer peripheral surface of the cooling portion 15. The number of holes 18 arranged in the circle, is not particularly limited, and may be two or more. Although the cooling part illustrated in FIG. 4 has a cylindrical shape having a hollow space 17, the shape of the cooling portion is not limited to this. The boundary between the first region and the second region in FIG. 4 is not illustrated.

The hole diameter is preferably 100 to 1000 μm, and more preferably 300 to 800 μm. The holes are preferably substantially circular or substantially elliptical. When the holes are substantially elliptical, their diameter is equal to the length along the major axis.

[0061] As illustrated in FIG. 4, holes in the cooling portion may be formed to pass through the rim paper 12 and the anti-lip agent 13. The rim paper 12 and the anti-lip agent 13 may not have holes, but preferably they have holes to enhance the cooling effect.

As described above in the description of the third shape in "1-1. Wrapped Part", the holes are placed in the circumferential direction of the outer peripheral surface of the cooling part. The number of sets of holes arranged in the circumferential direction (also referred to as "circumferential placement sets") is not particularly limited, and may be two or more. In this case, since the circumferential placement sets are generally located outside the lip contact region, one of the circumferential placement sets that is closest to the mouth end end serves as the circumferential placement set at the boundary between the first region and the second region.

The inside of the cooling part may be filled with collected material in the form of a sheet, such as paper, plastic film or metal foil. In such a case, the steam can be cooled by using the specific heat of these materials.

The height of the cooling portion in the longitudinal direction is not specifically limited. In order to provide a sufficient cooling function, the height is usually 5 to 40 mm, preferably 10 to 35 mm, and more preferably 15 to 30 mm.

[0062]

[Filter part]

The structure of the filter portion 16 is not particularly limited as long as the filter portion 16 performs the function of a conventional filter. For example, the filter portion 16 may be formed by processing cellulose acetate tow into a cylindrical shape. The fineness of the individual fibers and the total fineness of the cellulose acetate tow are not specifically limited. However, when the filter portion has a circumference of 22 mm, the individual fiber fineness is preferably 5 to 12 g per 9000 m, and the total fineness is preferably 12000 to 30000 g per 9000 m. or cross section R. When the filter is filled with cellulose acetate tow, triacetin can be added in an amount of 5 to 10 wt. % by weight of cellulose acetate tow to increase filter stiffness.

Although the filter portion 16 consists of one segment, in FIG. 3, the filter portion 16 may instead be composed of a plurality of segments. When the filter portion 16 is composed of a plurality of segments, for example, a hollow segment having a central channel or the like may be located on the upstream side (tobacco rod side), and the segment located on the downstream side (side from which the user inhales ), may be an acetate filter having a mouthpiece cross-section filled with cellulose acetate tow. Such a structure prevents unnecessary loss of the resulting aerosol and improves the appearance of the non-burning heated tobacco product. Considering the change in the inhalation feeling and the mouthfeel of the non-burning heated tobacco product, the acetate filter may be positioned on the upstream side, and the hollow segment having a central channel or the like may be positioned on the downstream side. Instead of an acetate filter, a paper filter filled with paper stock in the form of a sheet can be provided.

Air flow resistance adjustment and addition of additives (eg known absorbents, flavors and flavor fixatives) can be appropriately provided in the manufacture of the filter.

[0063]

<2. Electric Heated Tobacco Product>

An electrically heated tobacco product according to an embodiment includes an electrical heating device and the above-described non-burning heated tobacco product. The electric heating device includes a heating element, a battery pack that serves as a power source for the heating element, and a control unit for controlling the heating element. The non-burning heated tobacco product is inserted into the electrical heating device such that the non-burning heated tobacco product comes into contact with the heating element.

The electrically heated tobacco product may be configured such that the outer peripheral surface of the non-burning heated tobacco product is heated, as illustrated in FIG. 5, or so that the inside of the tobacco rod of the non-burning heated tobacco product is heated, as illustrated in FIG. 6. Although the electric heating device 2 illustrated in FIG. 5 and 6 have air supply channels, the air supply channels are not illustrated. The electrically heated tobacco product will be described with reference to FIG. five.

To use the electrically heated tobacco product 3, the above-described non-burning heated tobacco product 1 is inserted into the electric heating device 2 so that the non-burning tobacco product 1 comes into contact with the heating element 23 located in the electric heating device 2.

The electrical heating device 2 has a housing 22 made of plastic, for example, and includes a battery pack 20 and a control unit 21 located in the housing 22.

When the non-burning heated tobacco product 1 is inserted into the electric heating device 2, the outer peripheral surface of the tobacco rod comes into contact with the heating element 23 of the electric heating device 2. Then, the entire outer peripheral surface of the tobacco rod and a portion of the outer peripheral surface of the wrapped portion come into contact with the heating element.

The heating element 23 of the electric heating device 2 generates heat under the control of the control unit 21 . The generated heat is transferred to the tobacco rod of the non-burning heated tobacco product. Accordingly, the aerosol starting material, flavor components and other components contained in the tobacco filler of the tobacco rod are evaporated.

[0064] The heating element may be, for example, a sheet-shaped heater, a flat plate-shaped heater, or a tubular heater. The sheet-shaped heater is a flexible sheet-shaped heater and may, for example, be a heater including a film (about 20 to 225 μm thick) made from a heat-resistant polymer such as polyimide. The flat plate heater is a rigid heater having the shape of a flat plate (about 200 to 500 μm thick), and may be, for example, a heater having a resistance circuit provided on the flat plate substrate and serving as a heat generating part. The tubular heater is a heater in the form of a hollow or solid tube (thickness of about 200 to 500 μm) and may be, for example, a heater having a resistance circuit provided on the outer peripheral surface of a tube made of, for example, metal and serving as as a heat generating part. The heating element may instead be a rod-shaped heater or a cone-shaped heater made of, for example, metal and having a resistance circuit located therein, which serves as the heat generating part. The cross-sectional shape of the tubular heater may be, for example, a round shape, an elliptical shape, a polygonal shape, or a rounded polygonal shape.

When the outer peripheral surface of the non-burning heated tobacco product is heated, as illustrated in FIG. 5, the sheet-shaped heater, the flat plate-shaped heater, or the tubular heater described above can be used. When the tobacco rod of the non-burning heated tobacco product is heated from the inside, as illustrated in FIG. 6, a flat plate-shaped heater, a rod-shaped heater, or a cone-shaped heater described above can be used.

When the length of the tobacco rod in the longitudinal direction is L mm, the length of the heating element in the longitudinal direction may be in the range of L±5.0 mm. In order to sufficiently transfer heat to the tobacco rod and to sufficiently vaporize the aerosol source material, flavor components and other components contained in the tobacco filler, i.e. to ensure proper delivery of the aerosol, the length of the heating element in the longitudinal direction is preferably L mm or more. In order to reduce the formation of substances that have a negative effect on the taste of smoke, for example, the length of the heating element in the longitudinal direction is preferably L+0.5 mm or less, L+1.0 mm or less, L+1.5 mm or less, L+2.0 mm or less, L+2.5 mm or less, L+3.0 mm or less, L+3.5 mm or less, L+4.0 mm or less, L+4.5 mm or less or L+5.0 mm or less.

[0065] The heating intensity, such as the heating time and the heating temperature at which the non-burning heated tobacco product is heated by the heating element, can be set in advance for each electrically heated tobacco product. For example, settings may be made in advance so that after inserting the flameless tobacco product into the electric heating device, preheating is performed for a certain time to raise the temperature of the outer peripheral surface of the flameless heated tobacco product that is inserted into the device to X (°C), and then maintained a constant temperature of X (°C) or less.

To deliver the proper amount of aerosol, the above-described temperature X (°C) is preferably 80°C or more and 400°C or less. More specifically, the temperature X (°C) may be 80°C, 90°C, 100°C, 110°C, 120°C, 130°C, 140°C, 150°C, 160°C, 170°C , 180°С, 190°С, 200°С, 210°С, 220°С, 230°С, 240°С, 250°С, 260°С, 270°С, 280°С, 290°С, 300 °С, 310°С, 320°С, 330°С, 340°С, 350°С, 360°С, °С, 370°С, 380°С, 390°С or 400°С.

The temperature of the outer peripheral surface of the non-burning heated tobacco product during the heating of the non-burning heated tobacco product by the electric heating device is measured by the method described below.

The vapor containing the aerosol source material, flavor components and other components generated from the tobacco rod, when the tobacco rod is heated by the heating element, passes through the mouthpiece including the cooling part and the filter part, and reaches the user's mouth.

[0066]

<3.<Smoking test>

The smoking test is conducted under the Canadian Intensive Regiment (CIR) under the conditions described below.

For example, the electrically heated tobacco product described above is used. After inserting the tobacco rod of the non-burning heated tobacco product, the temperature of the heater rises to 230° C. within 17 seconds. Then this temperature is maintained for 23 seconds, and then maintained constant in the range from 170°C to 175°C. Thereafter, a smoking test was carried out by performing automatic smoking using a one-port automatic smoking machine manufactured by Borgwaldt KC Inc. with a flow rate of 55 cc for 2 seconds and smoking intervals of 30 seconds. The external air supply channels formed in the outer periphery of the cooling portion are not closed during the smoking test. Mainstream tobacco smoke generated during the smoking test is collected using a Cambridge pad. After performing the tightening operation eight times, the Cambridge pad is removed.

[0067]

<4. Method for measuring the temperature of the outer peripheral surface of a tobacco product heated without burning>.

The temperature of the outer peripheral surface of the non-burning heated tobacco product at the time of heating the non-burning heated tobacco product by the electric heating device is measured by the following method.

Before using the flameless heated tobacco product, thermocouples (manufactured by Toa Electric Inc., model TI-SP-K) are attached to the outer peripheral surface of the wrapped portion of the flameless heated tobacco product to measure the temperature at the following five positions: the position of the end near the inlet a heating element part of the electric heating device (hereinafter also referred to as "point b2"); a position at a distance of 5.0 mm from the end adjacent to said inlet of the heating element towards the mouthpiece-side end (hereinafter also referred to as "point b1"); a position at a distance of 7.5 mm from the end adjacent to said inlet of the heating element towards the mouthpiece-side end (hereinafter also referred to as "point a3"); a position at a distance of 13.5 mm from the end adjacent to said inlet of the heating element towards the mouthpiece-side end (hereinafter also referred to as “point a2>>); and a position at a distance of 15.5 mm from the end adjacent to said inlet of the heating element towards the mouthpiece-side end (hereinafter also referred to as "point a1"). The thermocouples are attached with pieces of polyimide tape (50 µm thick).

After the non-burning heated tobacco product to which the thermocouples are attached is inserted into the electric heating device, the maximum temperature at each measurement point at the heater temperatures mentioned above in <3. Smoking test> is recorded as the temperature of the outer peripheral surface of the non-burning heated tobacco product.

[0068]

<5. TSNA measurement method>

The method for measuring the amount of TSNA in a non-burning heated tobacco product is not particularly limited. For example, a measurement can be performed by adding the object to be measured to an aqueous solution of 0.1 M (mol/L) ammonium acetate, performing a stirring extraction (180 rpm, 60 min), and then filtering the extract with a glass fiber filter, and performing ion chromatography against the resulting filtrate. The mobile phase may be an aqueous solution of acetic acid and a solution of acetic acid in methanol.

The measurement object can be prepared by cutting the non-burning heated tobacco product into pieces in a direction perpendicular to the longitudinal direction. The object of measurement may be either some or all of the pieces into which the non-burning heated tobacco product is cut, as described above.

[0069]

<6. Nitrate nitrogen measurement method>

Nitrate nitrogen is a substance formed during the decomposition of nitrocellulose.

The method for measuring the amount of nitrate nitrogen in a non-burning heated tobacco product is not particularly limited. For example, a measurement can be made in accordance with ISO 15517:2003 under the following conditions.

• Analysis device: Auto analyzer (SYNCA 1H (manufactured by BL TEC K.K.))

• Sample preparation for analysis: the paper material to be analyzed is cut into pieces of any size and distilled water is added to them. Then, shaking extraction is performed for a certain time, and then filtration is performed. The resulting filtrate is used.

• Analysis procedure:

(1) The nitrate nitrogen standard solution and the sample for analysis are installed in the autoanalyzer, and distilled water is supplied through all tubes. Distilled water is introduced until the air bubbles in the tubes are evenly spaced.

(2) Bridge water is injected through the reagent tube, and the baseline of the graph is checked.

(3) The liquid that flows through each tube is replaced with a reagent. The reagent is injected until the baseline stabilizes.

(4) Once the baseline has stabilized, analysis begins.

(5) After the analysis is completed, a calibration curve is generated based on the measurement value of the standard solution.

(6) Measure the sample for analysis.

(7) The calculation of the quantification is performed on the obtained calibration curve and the measurement result of the sample to be analyzed.

The relative content of nitrate nitrogen can be calculated according to Equation (1) below.

Relative content of nitrate nitrogen (%)=((C × V × 100) × 100)/t × 100 × 100 (1)

C: Nitrate nitrogen content determined from the calibration curve (mg/l)

V: Amount of solution (ml)

m: Sample weight (g)

[Examples]

[0070] The present invention will be further described by way of example. However, the present invention is not limited to the description of the examples as long as the gist of the invention remains.

[0071]

<Example 1>

[Tip Paper Preparation for the Wrapped Part] A lip prevention agent (CHG LR T Varnish manufactured by DIC Corporation) has been prepared. Edge paper manufactured by Nippon Paper Papylia Co., Ltd. was used. (with base weight 37 g/mm ² , thickness 40 μm). The size of the prepared tipping paper was such that the length of the wrapped circumference was 22 mm and the length of the wrapper was 40 mm.

The anti-stick agent described above was diluted with a solvent (containing, for example, ethyl acetate). The reaction product was applied to the above-described rim paper by printing, and then dried to remove the solvent. This process was carried out in such a way that the anti-adhesion to the lips was applied uniformly and its content per unit area was 0.56 mg/mm ² in the area from the end of the mouthpiece side of the non-burning heated tobacco product to a position at a distance of 17 mm from provided from the side of the mouthpiece of the end in the longitudinal direction of the tobacco product heated without burning. The anti-sticking agent was not applied in the area from the said position at a distance of 17 mm towards the tobacco rod-side end in the longitudinal direction of the wrapped portion.

[0072]

[Tobacco rod production]

Crushed leaf tobacco with a flavor blended at a ratio of 2 g per 100 g and an aerosol feed material (glycerol) blended at a ratio of 40 g per 100 g was prepared as a tobacco excipient. The tobacco filler was wrapped with wrapping paper (manufactured by Nippon Paper Papylia Co., Ltd., basis weight 35 g/m ² , thickness 52 μm) using a high speed wrapping machine.

The mass of ground tobacco was 0.8 g per piece, the wrap circumference was 22 mm, and the wrapper length was 68 mm.

The wrapped, pieced tobacco rods were placed in sealed plastic containers and stored in groups of 200 for each level.

[0073]

[Manufacture of Heated Non-Combustion Tobacco Product] The tobacco rod produced by the above-described method was cut with a length of 20 mm. Thereafter, the tobacco rod was manually wrapped with the prepared tipping paper along with the support part and the filter part to form the wrapped part. The supporting part included a cooling part, which was a 20 mm long paper tube having dilution air channels formed in its outer periphery, and an 8 mm long central channel filter having a through channel. The filter portion was 7 mm long and was filled with cellulose acetate fibers. Thus, a non-burning heated tobacco product was produced.

Thermocouples (manufactured by Toa Electric Inc., model TI-SP-K) were attached to the wrapped portion of the manufactured non-burning heated tobacco product in five positions. These five positions were points a1, a2, a3, b1 and b2 described above in <4. Method for measuring the temperature of the outer peripheral surface of a tobacco product heated without burning>. Thermocouples were attached with polyimide tape (50 μm thick) cut into 10 mm × 5 mm pieces. This is called Example 1.

The dilution air passages correspond to the openings described above and are placed in the circumferential direction at a position 17 mm from the mouthpiece-side end of the non-burning heated tobacco product in the longitudinal direction of the non-burning tobacco product.

[0074]

<Comparative Example 1>

A non-flammable heated tobacco product was made in the same manner as in Example 1, except that when the wrapped portion was prepared as in Example 1, the anti-sticking agent was evenly applied to the tipping paper over its entire area, so that its content per unit area was 0.56 mg/ ^mm2 . In other words, the lip preventive agent was applied to satisfy the following condition: (lip preventive agent content per unit area in the first region) = (lip preventive agent content per unit area in the second region). This is referred to as Comparative Example 1.

[0075]

<Smoking Trial>

Each of the non-burning heated tobacco products according to Example 1 and Comparative Example 1 was subjected to a smoking test. The electrically heated tobacco product subjected to this smoking test had the same structure as described above. After inserting the tobacco rod of the non-burning heated tobacco product, the temperature of the heater was raised to 230° C. within 17 seconds. Then this temperature was maintained for 23 seconds, and then maintained constant in the range from 170°C to 175°C. Thereafter, a smoking test was performed by performing automatic smoking using a one-port automatic smoking machine manufactured by Borgwaldt KC Inc. with a flow rate of 55 cc for 2 seconds and smoking intervals of 30 seconds. The outer air supply channels formed in the outer periphery of the cooling portion were not closed during the smoking test. Mainstream tobacco smoke generated during the smoking test was collected with a Cambridge pad. After performing the tightening operation eight times, the Cambridge pad was removed.

During the smoking test, thermocouples attached to the wrapped portion of each non-burning heated tobacco product at the five points described above (points a1, a2, a3, b1 and b2) were used to measure the maximum temperature at each point on the outer peripheral surface of the wrapped portion of the non-burning heated tobacco product. tobacco product. The results are shown in Table 1.

[0076]

<TSNA measurement>

The amount of TSNA contained in the non-burning heated tobacco product after the smoking test was measured by the following method.

After the smoking test, the non-burning heated tobacco product was divided into the following four regions (A) to (D).

(A) The area from the mouthpiece-side end to a position 27.5 mm from said mouthpiece-side end towards the tobacco rod in the longitudinal direction of the non-burning heated tobacco product (area including points a1, a2 and a3 in the temperature measurement described above).

(B) The area from the mentioned position at a distance of 27.5 mm in (A) to the position at a distance of 7.5 mm from the position at a distance of 27.5 mm towards the tobacco rod in the longitudinal direction of the non-burning heated tobacco product (area including points b1 and b2 in the above temperature measurement).

(C) The area from the mentioned position at a distance of 7.5 mm in (B) to the position at a distance of 5 mm from the position at a distance of 7.5 mm towards the end of the tobacco rod in the longitudinal direction of the non-burning heated tobacco product (the area in which the rim paper present and which extends to the tobacco rod-side end in Example 1 and Comparative Example 1).

(D) The area from the mentioned position at a distance of 5 mm in (C) to the end of the tobacco rod in the longitudinal direction of the non-burning heated tobacco product (the area in which tipping paper is not present in Example 1 and Comparative Example 1).

Among the above-described four regions (A) to (D) of the non-burning heated tobacco product, regions (A) to (C), which are regions of the wrapped portion, were used as measurement objects. The amount of TSNA in each measurement object was measured by adding the measurement object to an aqueous solution of 0.1 M (mol/l) ammonium acetate, performing a stirring extraction (180 rpm, 60 min), and then filtering the extract with a glass fiber filter and performing ion chromatography in in relation to the resulting filtrate. The mobile phase was an aqueous solution of acetic acid and a solution of acetic acid in methanol. Table 1 shows the content of TSNA in each of the measurement objects from Example 1 and Comparative Example 1.

[0077]

[Nitrate nitrogen measurement]

The amount of nitrate nitrogen in the non-burning heated tobacco product was measured in accordance with ISO 15517:2003 under the following conditions.

Analysis device: Auto analyzer (SYNCA 1H (manufactured by BL TEC K.K.))

• Sample preparation for analysis: Similar to the above TSNA measurement, the non-burning heated tobacco product after the smoking test was divided into four regions (A)-(D) and cut into pieces of any size, and then 5 ml of distilled water was added to them. Then, extraction was carried out by shaking for 15 minutes, and then filtration was performed. The resulting filtrate was used.

• Analysis procedure:

(1) The nitrate nitrogen standard solution and the sample for analysis are installed in the autoanalyzer, and distilled water is supplied through all tubes. Distilled water is introduced until the air bubbles in the tubes are evenly spaced.

(2) Bridge water is injected through the reagent tube, and the baseline of the graph is checked.

(3) The liquid that flows through each tube is replaced with a reagent. The reagent is injected until the baseline stabilizes.

(4) Once the baseline has stabilized, analysis begins.

(5) After the analysis is completed, a calibration curve is generated based on the measurement value of the standard solution.

(6) Measure the sample for analysis.

(7) The calculation of the quantification is performed on the obtained calibration curve and the measurement result of the sample to be analyzed.

The relative content of nitrate nitrogen can be calculated according to Equation (1) below.

Relative content of nitrate nitrogen (%)=((C × V × 100) × 100)/m × 1000 × 1000 (1)

C: Nitrate nitrogen content determined from the calibration curve (mg/l)

V: Amount of solution (ml)

m: Sample weight (g)

[0078]

[Sizing degree]

The degree of sizing was measured under the following conditions:

Measuring device: Surface and sizing tester model EST 12 (manufactured by Ninon Rufuto Co., Ltd.)

Sample (test paper): The paper was placed in an environment with a temperature of 23°C and a relative humidity of 50% for 24 hours, and then it was cut into a size of 20 mm x 70 mm.

Measuring method: the test paper was immersed in the test liquid (water), which filled the measuring cell of the above measuring device. Since that time, low energy ultrasonic waves have been studied in the thickness direction. In the present invention, assuming that the measurement start time is the time when the test paper is completely immersed in the test liquid, the sizing degree is the time from the start of measurement to the time when the obtained permeability peak is at the maximum value (MAX value).

In Example 1, the above-described measurement was performed on the second area of the wrapped portion of the non-burning heated tobacco product before the smoking test. The degree of sizing was 0.476 seconds (average value of several measurements). Similarly, in Comparative Example 1, the above-described measurement was performed on said second region of the wrapped portion. The degree of sizing was 0.082 seconds (average of several measurements).

[0079]

[Contact angle]

The contact angle was measured under the following conditions:

Measuring device: Contact angle meter model DMC-MC3 (manufactured by Kyowa Electronic Instruments Co., Ltd.)

Sample (test paper): The paper was placed in an environment with a temperature of 23°C and a relative humidity of 50% for 24 hours, and then it was cut into a size of 20 mm×70 mm.

Measurement method: The test paper was attached to a slide with a double-sided tape, and the contact angle was measured using the θ/2 method as a contact angle evaluation method with a liquid (water) drop volume of 7 μl and a measurement start time of 1000 ms.

In Example 1, the above-described measurement was performed on the second area of the wrapped portion of the non-burning heated tobacco product before the smoking test. The contact angle was 101.6° (average of several measurements). Similarly, in Comparative Example 1, the above-described measurement was performed on said second region of the wrapped portion. The contact angle was 94.0° (average of several measurements).

[0080]

* The maximum temperature of the outer peripheral surface of the wrapped portion of the non-burning heated tobacco product in region C during use is an estimate.

[0081] Table 1 shows that in all regions (A) to (C), the amount of TSNA and the percentage of nitrate nitrogen in Example 1 is less than in Comparative Example 1.

List of designators

[0082] 1 non-burning heated tobacco product

10 tobacco rod

11 mouthpiece

12a rim paper (first area)

12b tip paper (second area)

12 tip paper

13a anti-stick lip agent (first area)

13b anti-stick lip agent (second area)

13 anti-stick lip product

14 line showing the boundary between the first region and the second region

15 cooling part

16 filter part

17 hollow space

18 hole

2 electric heating device

20 battery pack

21 control unit

22 building

23 heating element

3 electrically heated tobacco product

Claims (18)

1. Heated without combustion tobacco product containing a tobacco rod, a mouthpiece and a wrapped part, in which the tobacco rod and the mouthpiece are wrapped with rim paper, wherein at least a portion of the tipping paper is coated with an anti-stick agent, wherein the wrapped part consists of a first region and a second region in the longitudinal direction of a non-burning heated tobacco product, wherein the first region includes an end of a non-burning heated tobacco product on the mouthpiece side, and the second region includes an end on the side of the tobacco rod, and while the first region and the second region satisfy the following condition A: Condition A: The content of the anti-stick agent per unit area in the first region is greater than the content of the anti-stick agent per unit area in the second region. 2. The non-burning heated tobacco product of claim 1, wherein the first region is the region from the mouthpiece-side end of the non-burning heated tobacco product to a position 17 mm from the mouthpiece-side end of the non-burning heated tobacco product in the longitudinal direction. heated non-burning tobacco product, and wherein the second region is the region from said position at a distance of 17 mm to the tobacco rod-side end of the wrapped portion in the longitudinal direction. 3. The non-burning heated tobacco product according to claim 1, wherein the first region is the region from the mouthpiece-side end of the non-burning heated tobacco product to a position at a distance of 42.5% of the length of the wrapped portion in the longitudinal direction of the non-burning heated tobacco product from the mouthpiece-side end of the non-burning heated tobacco product, and wherein the second region is the region from said position at a distance of 42.5% to the tobacco rod end of the wrapped portion in the longitudinal direction. 4. The non-burning heated tobacco product according to claim 1, wherein the mouthpiece comprises a cooling part and a filtering part. 5. Heated without combustion tobacco product according to claim 4, in which the cooling part has a plurality of holes, which are placed in the circumferential direction of the outer peripheral surface of the cooling part, wherein the first region is the region from the end of the non-burning heated tobacco product on the side of the mouthpiece to the position where the holes are located along the length of the wrapped portion, in the longitudinal direction of the non-burning heated tobacco product, and wherein the second region is the region from said position, in which the holes are placed, to the tobacco rod-side end of the wrapped portion in the longitudinal direction. 6. Heated without burning tobacco product according to any one of paragraphs. 1-5, wherein the ratio of the content of the anti-stick agent per unit area in the second region to the content of the anti-stick agent per unit area in the first region is 1/2 or less. 7. The non-burning heated tobacco product of claim 6, wherein the ratio of anti-stick agent per unit area in the second region to the content of anti-stick agent per unit area in the first region is 1/4 or less. 8. Heated without burning tobacco product according to any one of paragraphs. 1-7, in which the content of the anti-stick agent per unit area in the second region is less than 0.56 mg/mm ² . 9. Heated without burning tobacco product according to any one of paragraphs. 1-8, wherein the anti-stick agent comprises at least nitrocellulose or ethylcellulose. 10. An aerosol generating system comprising an electrical heating device and a non-burning heated tobacco product according to any one of paragraphs. 1-9, wherein the electrical heating device comprises a heating element, a battery pack that serves as a power source for the heating element, and a control unit for controlling the heating element, wherein the non-burning heated tobacco product is inserted into the electrical heating device such that the non-burning heated tobacco product comes into contact with the heating element.

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