KR20230154471A - Coolant for non-combustible heated tobacco, non-combustible heated tobacco, and electrically heated tobacco products - Google Patents

Abstract

A coolant for non-combustible heated cigarettes is provided, comprising a polyhydric alcohol and a porous granular substrate, wherein the polyhydric alcohol is impregnated into the granular substrate.

Description

Coolant for non-combustible heated tobacco, non-combustible heated tobacco, and electrically heated tobacco products

The present invention relates to coolants for non-combustible heated tobacco, non-combustible heated tobacco, and electrically heated tobacco products.

Recently, as a replacement for cigarettes (cigarettes), non-combustible heated cigarettes that are used by inserting into an electric heating device have been developed (Patent Document 1). The non-combustible heated cigarette generally includes a tobacco rod portion in which a composition containing flavor components such as tobacco flesh or an aerosol base is recommended by the wrapper, and a mouthpiece for sucking in components generated from the tobacco rod portion by heating. Parts, and chip paper recommended for them. When using a non-combustible heated tobacco, the non-combustible heated tobacco is inserted or placed in the electric heating device. The heat source provided in the electric heating type device heats at least a portion of the tobacco rod portion without burning it, thereby generating volatile substances from the composition contained in the tobacco rod portion. These volatile substances are transferred from the tobacco rod side to the mouthpiece side by the user's suction, but are cooled in the cooling segment included in the mouthpiece section and form an aerosol.

For example, Patent Document 1 discloses an aerosol cooling element that includes a plurality of longitudinally extending channels and has a porosity of between 50% and 90% in the longitudinal direction.

Patent Document 1: Japanese Patent Publication No. 2015-508676

The temperature of smoke generated from cigarettes may reach 800°C or higher. At such high temperatures, the amount of moisture contained in the smoke becomes very small, so it tends to be difficult for users to perceive that the temperature is high.

On the other hand, the aerosol generated from non-combustion heated cigarettes contains a relatively large amount of moisture. Therefore, even though the temperature of the aerosol is lower than that of the cigarette, the user is more likely to perceive the temperature than that of the cigarette.

Conventionally, methods such as lowering the heating temperature during use or lengthening the aerosol flow path have been applied as methods of lowering the temperature of the aerosol.

The method of lowering the temperature of the aerosol includes efficient and safe cooling, is stable from the manufacturing stage of non-combustible heated cigarettes until completion of use by the user, and does not adversely affect the flavor of the aerosol. Although characteristics such as limited impact on cost are required, it is difficult to satisfy all these characteristics with conventional methods, and there is room for improvement.

Therefore, the present invention provides a non-combustible heated tobacco coolant that is excellent in efficiency, safety, and stability, does not adversely affect the flavor of the aerosol, and can reduce the temperature of the aerosol while suppressing manufacturing costs. The object is to provide non-combustible heated tobacco and electrically heated tobacco products having this.

As a result of intensive studies, the present inventors have discovered that the above problems can be solved by using a granular base material impregnated with a polyhydric alcohol, and have arrived at the present invention. That is, the gist of the present invention is as follows.

[1] Containing a polyhydric alcohol and a porous granular substrate,

A coolant for a non-combustible heated cigarette, wherein the granular substrate is impregnated with the polyhydric alcohol.

[2] The coolant for non-combustible heated cigarettes according to [1], wherein the content of the polyhydric alcohol in the non-combustible heated cigarette coolant is 3% by weight or more and 39% by weight or less.

[3] The non-combustible heated cigarette coolant according to [1] or [2], wherein the porous granular substrate is at least one selected from the group consisting of charcoal, calcium carbonate, cellulose, acetate, sugar, starch, and chitin. .

[4] The non-combustible heated tobacco coolant according to any one of [1] to [3], wherein the porous granular substrate has a pore volume of 0.3 mL/g or more and 0.8 mL/g or less.

[5] The non-combustible heated cigarette coolant according to any one of [1] to [4], wherein the average particle diameter is 212 μm or more and 600 μm or less.

[6] The coolant for non-combustible heated cigarettes according to any one of [1] to [5], which has an apparent density of 0.55 g/cm ³ or more and 0.80 g/cm ^{3 or} less.

[7] A non-combustible heated cigarette having a mouthpiece portion containing the coolant for a non-combustible heated cigarette according to any one of [1] to [6].

[8] The non-combustion heated cigarette according to [7], wherein the mouthpiece portion has a cooling segment, and at least the cooling segment contains the coolant for the non-combustion heated cigarette.

[9] An electric heating type device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and inserted to contact the heater member, [7] or An electrically heated tobacco product comprising the non-combustible heated tobacco described in [8].

[10] A process of obtaining granules by spraying or dropping a solution containing a polyhydric alcohol onto a porous granular substrate,

B process of drying the granules,

A method for producing a coolant for non-combustible heated cigarettes, comprising a.

[11] In the step A, the non-combustible heated tobacco coolant according to [10], wherein granules are obtained by spraying or dropping the solution onto the flowing porous granular substrate while flowing the porous granular substrate. Manufacturing method.

According to the present invention, a non-combustible heated cigarette that is excellent in efficiency, safety, and stability, does not adversely affect the flavor of the aerosol, and can realize a reduction in the temperature of the aerosol while suppressing the effect on manufacturing costs. A coolant for use, a non-combustible heated tobacco product having the same, and an electrically heated tobacco product can be provided.

[Figure 1] A schematic diagram of a non-combustion heated cigarette according to an embodiment of the present invention.
[Figure 2] A schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention.
[Figure 3] is a schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention.
[FIG. 4] A diagram for explaining the end portion on the intake end side of the area where the cooling segment and the electrical heating device contact.
[FIG. 5] A diagram for explaining the end portion on the intake end side of the area where the cooling segment and the electrical heating device are in contact.
[Figure 6] A schematic diagram of a series of evaluations of the cooling effect in examples.
[Figure 7] A graph showing the evaluation results of the cooling effect in the examples.

Although embodiments of the present invention will be described in detail below, these descriptions are examples (representative examples) of embodiments of the present invention, and the present invention is not limited to these contents as long as they do not exceed the gist thereof.

In addition, in this specification, when "~" is used to express numerical values or physical property values before and after it, it is used as including the values before and after it.

In addition, in this specification, “plural” refers to two or more, unless otherwise specified.

＜Coolant for non-combustible heated cigarettes＞

The coolant for non-combustible heated cigarettes according to one embodiment of the present invention includes a polyhydric alcohol and a porous granular base material, and the polyhydric alcohol is impregnated into the granular base material. A coolant for non-combustible heated cigarettes ( Hereinafter, it is also simply referred to as “coolant.”).

Regarding the above coolant, the polyhydric alcohol contained therein is a material frequently used as a coolant for brine refrigerators used in the food industry. The reason polyhydric alcohol is used is because it can be cooled efficiently, is a material with extremely low toxicity, and is excellent for safety. In addition, polyhydric alcohols have a low melting point and can usually always maintain a stable state as a liquid within the use heating temperature range of non-combustion heated cigarettes, so they are in a stable state from the manufacturing stage of non-combustion heated cigarettes to the completion of use by the user. It is held and supported. In addition, polyhydric alcohols have been conventionally used as moisturizers for non-combustible heated cigarettes, do not adversely affect flavor, and are not particularly expensive materials. In addition, when a form in which a hollow cavity is provided as part of the mouthpiece part of a non-combustible heated cigarette or a form using a PLA sheet is adopted, the hardness is insufficient. However, by incorporating polyhydric alcohol into the granular base material, this problem of hardness can be improved, and furthermore, the feel of the vagina handled by smoking can be improved. In addition to these advantages, by incorporating a polyhydric alcohol into the granular base material, it becomes possible to use granule handling methods and equipment such as granular activated carbon that have been cultivated through the development of conventional non-combustible heated cigarettes, thereby reducing manufacturing costs. It can be suppressed.

In addition, in the conventional method of lowering the heating temperature during use, a problem arises that there is a high risk that the production of aerosol may become unstable, and in the conventional method of blowing in the vent air, the taste is diluted. A problem had occurred. On the other hand, since such problems do not occur in the method using the above coolant, the method using the above coolant has excellent cooling efficiency and stability from this point of view as well. In addition, in the conventional method of lengthening the aerosol flow path, the manufacturing cost of the non-combustion heated cigarette itself increases, and there is a great risk of limiting the freedom of design of the non-combustion heated cigarette, while using the above coolant Since such problems do not occur in the method, from this point of view as well, the method using the above coolant can suppress manufacturing costs.

The coolant includes a polyhydric alcohol and a porous granular substrate. The polyhydric alcohol is not particularly limited as long as it is a dihydric alcohol or higher, but any alcohol may be used safely as a food additive. Additionally, it is desirable not to affect the flavor of non-combustible heated tobacco. Specifically, propylene glycol, glycerin, etc. can be mentioned.

The boiling point of the polyhydric alcohol is not particularly limited, but is preferably in a liquid state at 20°C and atmospheric pressure, and is usually 100°C or higher, preferably 130°C or higher, and more preferably 160°C or higher at atmospheric pressure. Additionally, it is usually 340°C or lower, preferably 290°C or lower, and more preferably 240°C or lower.

The content of polyhydric alcohol in the coolant is not particularly limited, but is usually 3% by weight or more, preferably 8% by weight or more, more preferably 13% by weight or more, still more preferably 18% by weight or more, and usually 39% by weight or more. It is preferably 34% by weight or less, more preferably 31% by weight or less, and even more preferably 29% by weight or less.

By bringing the aerosol into contact with the coolant, the temperature of the aerosol absorbed by the user can be lowered by, for example, 4°C or more. In some cases, it can be lowered by 9°C or more.

Additionally, it is conceivable that the flavor may be improved by adsorbing some of the components contained in the aerosol.

Porous granular substrates include charcoal, calcium carbonate, cellulose, acetate, sugar, starch, and chitin. In particular, charcoal is preferable, and activated carbon is more preferable.

Examples of activated carbon include those made from wood, bamboo, coconut shell, walnut shell, coal, etc. as raw materials.

The BET specific surface area of the porous granular substrate is not particularly limited, but is usually 1100 m ² /g or more and 1600 m ^{2 /g or less, preferably 1200 m 2 /} g or more and 1500 m ² /g or less, and more preferably is 1250m ² /g or more and 1380m ² /g or less. The BET specific surface area can be determined by the nitrogen gas adsorption method (BET multipoint method).

The pore capacity of the porous granular substrate is not particularly limited, but is usually 0.3 mL/g or more and 0.8 mL/g or less, more preferably 0.5 mL/g or more and 0.75 mL/g or less, and even more preferably is 0.6mL/g or more and 0.7mL/g or less. By keeping the pore capacity of the porous granular substrate within the above range, it becomes easy to obtain the desired cooling effect. The pore capacity can be calculated from the maximum adsorption amount obtained using the nitrogen gas adsorption method.

The average particle diameter of the porous granular substrate is not particularly limited, but from the viewpoint of making it easier to obtain the desired cooling effect, it is usually 200 μm or more and 600 μm or less, preferably 212 μm or more and 600 μm or less, and 250 μm or more and 600 μm or less. It is more preferable that it is 250 μm or more and 500 μm or less, and it is particularly preferable that it is 300 μm or more and 450 μm or less. In this specification, the average particle diameter is measured by the dry sieve method (JIS Z 8815-1994). In addition, the average particle diameter in this specification means the particle diameter (D50) at which the volume integration value is 50% in the particle size distribution, unless otherwise specified.

The apparent density of the porous granular substrate is not particularly limited, but is usually 0.30 g/cm ³ or more, 0.35 g/cm ³ or more, and 0.40 g/cm ³ or more, from the viewpoint of making it easier to obtain the desired cooling effect. It is preferable that it is 0.70 g/cm ³ or less, and it is more preferable that it is 0.65 g/cm ³ or less and 0.60 g/cm ³ or less. The apparent density can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The tap density of the porous granular substrate is not particularly limited, but is usually 0.35 g/cm ³ or more, 0.40 g/cm ³ or more, from the viewpoint of making it easy to obtain the desired cooling effect, and 0.45 g/cm ³ or more. It is preferable that it is 0.75 g/cm ³ or less, and it is more preferable that it is 0.70 g/cm ³ or less and 0.65 g/cm ³ or less. Tap density can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The compression ratio of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 1.0% or more and 10.0% or less, preferably 2.0% or more and 9.0% or less, and 3.0% or more and 8.0% or less. It is more preferable. Compressibility can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X, manufactured by Hosokawa Micron).

The angle of repose of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 20.0° or more and 50.0° or less, preferably 25.0° or more and 45.0° or less, and 30.0° or more. , it is more preferable that it is 40.0° or less. The angle of repose was measured using a sample after 12 to 24 hours of exposure in an environment with a temperature of 22°C and a relative humidity of 60%, using an angle of repose measuring device (e.g., It can be measured using a powder tester (PT-X) manufactured by Hosokawa Micron (Kabu).

The collapse angle of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 5.0° or more and 30.0° or less, preferably 8.0° or more and 28.0° or less, and is preferably 10.0° or more. It is more preferable that it is ° or more and 25.0° or less. The collapse angle can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron) under the same conditions as the above-described angle of repose.

The angle difference of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 8.0° or more and 30.0° or less, preferably 10.0° or more and 28.0° or less, and 12.0° or more. , it is more preferable that it is 25.0° or less. It can be evaluated by subtracting the angle of collapse from the angle of repose.

The spatula angle of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 25.0° or more and 50.0° or less, preferably 28.0° or more and 48.0° or less, and 30.0° or more and 45.0° or more. It is more preferable that it is ° or less. The spatula angle can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The uniformity of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 1.0 or more and 2.0 or less, preferably 1.1 or more and 1.9 or less, and more preferably 1.2 or more and 1.8 or less. Uniformity can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The ventilation fluidity index of the porous granular substrate is not particularly limited, but from the viewpoint of securing the desired ventilation resistance, it is usually 75.0 or more and 98.0 or less, preferably 78.0 or more and 95.0 or less, and more preferably 80.0 or more and 93.0 or less. do. The aeration fluidity index can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The degree of dispersion of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 13.0% or more and 30.0% or less, preferably 15.0% or more and 28.0% or less, and is preferably 18.0% or more and 25.0%. It is more preferable that it is below. The degree of dispersion can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X manufactured by Hosokawa Micron).

The flow index of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 65.0 or more and 95.0 or less, preferably 70.0 or more and 90.0 or less, and 75.0 or more and 85.0 or less. It is more desirable. The fractionation index can be evaluated using a powder property evaluation device (for example, Powder Tester PT-X, manufactured by Hosokawa Micron).

The hardness of the porous granular substrate is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 95.0% or more and 100.0% or less, and is preferably 97.0% or more and 100.0% or less. Hardness can be determined by setting the upper sieve limit to 0.500 and the lower sieve limit to 0.250 in accordance with the method described in JIS K1474 7.6, and shaking it using a shaker (e.g., a low-top shaker manufactured by Kagaku Kyoeisha). there is.

The coolant may contain water or the like in addition to polyhydric alcohol and the porous granular substrate. The moisture content of the coolant is not particularly limited, but is usually 18% by weight or less, preferably 15% by weight or less, more preferably 12% by weight or less, and setting a lower limit is not particularly necessary, and may be 0% by weight or more. , may be 0.5% by weight or more.

The average particle diameter of the coolant is not particularly limited, but from the viewpoint of making it easier to obtain the desired cooling effect, it is usually 200 μm or more and 600 μm or less, preferably 212 μm or more and 600 μm or less, and more preferably 250 μm or more and 600 μm or less, It is more preferable that it is 250μm or more and 500μm or less, and it is especially preferable that it is 300μm or more and 450μm or less. The average particle diameter of the coolant can be measured by the same method as the average particle diameter of the porous granular substrate described above.

The apparent density of the coolant is not particularly limited, but is usually 0.55 g/cm ³ or more and 0.80 g/cm ^{3 or less, preferably 0.62 g/cm 3 or} more and 0.78 g/cm 3 , from the viewpoint of making it easier to obtain the desired cooling effect. cm ³ or less, and more preferably 0.7 g/cm ³ or more and 0.76 g/cm ³ or less. The apparent density of the coolant can be measured by the same method as for the porous granular substrate described above.

The tap density of the coolant is not particularly limited, but is usually 0.65 g/cm ³ or more and 0.88 g/cm ^{3 or less, and 0.70 g/cm 3 or} more and 0.85 g/cm ³ or less from the viewpoint of making it easier to obtain the desired cooling effect. It is preferable, and it is more preferable that it is 0.73 g/cm ³ or more and 0.82 g/cm ³ or less. The tap density of the coolant can be measured in the same manner as for the porous granular substrate described above.

The compression ratio of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 1.0% or more and 10.0% or less, preferably 2.0% or more and 9.0% or less, and more preferably 3.0% or more and 8.0% or less. . The compressibility of the coolant can be measured by the same method as for the porous granular substrate described above.

The angle of repose of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 20.0° or more and 50.0° or less, preferably 25.0° or more and 45.0° or less, and more preferably 30.0° or more and 40.0° or less. . The angle of repose of the coolant can be measured by the same method as for the porous granular substrate described above.

The collapse angle of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 10.0° or more and 35.0° or less, preferably 13.0° or more and 33.0° or less, and more preferably 15.0° or more and 30.0° or less. do. The collapse angle of the coolant can be measured by the same method as for the porous granular substrate described above.

The coolant differential angle is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 8.0° or more and 55.0° or less, preferably 10.0° or more and 53.0° or less, and more preferably 12.0° or more and 50.0° or less. . The coolant difference can be determined in the same manner as for the porous granular substrate described above.

The spatula angle of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 25.0° or more and 65.0° or less, preferably 28.0° or more and 60.0° or less, and more preferably 30.0° or more and 55.0° or less. desirable. The spatula angle of the coolant can be measured in the same manner as for the porous granular substrate described above.

The uniformity of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 1.0 or more and 2.0 or less, preferably 1.1 or more and 1.9 or less, and more preferably 1.2 or more and 1.8 or less. The uniformity of the coolant can be measured by the same method as for the porous granular substrate described above.

The ventilation fluidity index of the coolant is not particularly limited, but from the viewpoint of securing the desired ventilation resistance, it is usually 75.0 or more and 98.0 or less, preferably 78.0 or more and 95.0 or less, and more preferably 80.0 or more and 93.0 or less. The ventilation fluidity index of the coolant can be measured by the same method as the porous granular substrate described above.

The dispersion degree of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 13.0% or more and 30.0% or less, preferably 15.0% or more and 28.0% or less, and more preferably 18.0% or more and 25.0% or less. do. The degree of dispersion of the coolant can be measured by the same method as for the porous granular substrate described above.

The flowability index of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 65.0 or more and 95.0 or less, preferably 70.0 or more and 90.0 or less, and more preferably 73.0 or more and 83.0 or less. The fractionation index of the coolant can be measured by the same method as for the porous granular substrate described above.

The hardness of the coolant is not particularly limited, but from the viewpoint of ensuring the desired stability, it is usually 95.0% or more and 100.0% or less, and is preferably 97.0% or more and 100.0% or less. The hardness of the coolant can be measured by the same method as for the porous granular substrate described above.

In this embodiment, the polyhydric alcohol is impregnated into the granular substrate. In this specification, impregnation indicates that at least part of the polyhydric alcohol is retained in the pores of the porous granular substrate. The pores of the porous granular substrate holding the polyhydric alcohol may be exposed on the surface of the substrate or may exist inside the substrate.

The method for producing the coolant is not particularly limited, but includes a step A of spraying or dropping a solution containing the polyhydric alcohol onto a porous granular substrate to obtain granules, and a step B of drying the granules. can be mentioned. Although the A process and the B process can be performed continuously, it is preferable to divide the A process and the drying process into multiple times and perform them alternately to prevent the amount of moisture contained in the granules from becoming excessive. The number of times steps A and B are performed is not particularly limited, and may be performed once, or may be repeated until the amount of polyhydric alcohol contained in the granules reaches the desired value. Additionally, the method for manufacturing the coolant may include manufacturing processes other than the A process and the B process.

In addition, the step A is preferably a step of obtaining granules by spraying or dropping the solution onto the flowing porous granular substrate while flowing the porous granular substrate. There is a risk that the coolant obtained by the process of immersing the porous granular substrate in the above solution and then deliquifying it may contain lumps with large particle sizes. It is easy to obtain a coolant with an average particle diameter within the above range without generating .

The solution used in the above-mentioned process A preferably has a polyhydric alcohol content of 25% by weight or more, and more preferably 40% by weight or more. Additionally, it is usually 75% by weight or less, and is preferably 60% by weight or less. Additionally, the solution may contain other solvents, and examples of the other solvents include water and the like.

The viscosity of the solution is not particularly limited, but is usually 1.0 mPa·s or more and 9.0 mPa·s or less, preferably 1.5 mPa·s or more and 6.0 mPa·s or less, and 2.5 mPa·s or more and 4.0 mPa·s. It is more preferable that it is below. The viscosity of the solution can be adjusted to the above range by diluting the polyhydric alcohol with the solvent, depending on the temperature and pressure in step A.

The temperature in step A may be room temperature of about 20°C, but is not limited to this and can be carried out within a range where the polyhydric alcohol and solvent do not coagulate or evaporate. In addition, the pressure can be carried out under atmospheric pressure, but is not limited to this and can be carried out in a range where the polyhydric alcohol and solvent do not coagulate or evaporate.

The drying method in step B is not particularly limited, and examples include reduced pressure drying and hot air drying. When performing hot air drying, hot air may be blown until the moisture content of the granules obtained in step A is within the range given as the moisture content of the coolant.

The drying temperature is not particularly limited, but is usually 30°C or higher, preferably 35°C or higher, and more preferably 40°C or higher. Additionally, it is usually 90°C or lower, preferably 80°C or lower, and more preferably 70°C or lower. Additionally, when drying, from the viewpoint of production stability, it is preferable to remove the solvent (water) while leaving the polyhydric alcohol, and drying conditions are appropriately set depending on the type of polyhydric alcohol.

The drying process is preferably carried out while flowing the granules from the viewpoint of uniformly drying the granules or over the entire surface of the granules. In particular, when processes A and B are performed alternately, it is desirable to keep the granules flowing while repeating these processes.

＜Non-combustible heated cigarette＞

Another embodiment of the present invention is a non-combustible heated cigarette having a mouthpiece portion containing the coolant for the non-combustible heated cigarette.

An example of a non-combustible heated cigarette according to the embodiment is shown in Fig. 1. Hereinafter, the non-combustion heating type cigarette will be explained with reference to FIG. 1.

The non-combustible heated cigarette 10 shown in FIG. 1 is a rod-shaped non-combustible heated cigarette including a tobacco rod portion 11, a mouthpiece portion 14, and chip paper 15 formed by recommending these. As such, the mouthpiece portion 14 includes a cooling segment 12 and a filter segment 13 including a filter medium, and at least one of the cooling segment 12 and the filter segment 13, A coolant according to one embodiment of the present invention is included. In addition, with respect to the axial direction (also referred to as “long axis direction”) of the non-combustible heated cigarette 10, the cooling segment 12 is connected to the tobacco rod portion 11 and the filter segment 13. It is sandwiched adjacent to , and openings V may be provided concentrically in the circumferential direction of the cooling segment 12.

The opening V provided in the cooling segment 12 of the non-combustible heated cigarette 10 shown in FIG. 1 is usually a hole for promoting the inflow of air from the outside by suction of the user, and this air The temperature of the ingredients or air flowing from the cigarette rod portion 11 can be lowered by the inflow of .

The opening V that may be installed in this embodiment may be one that exists in an area of 4 mm or more from the boundary between the cooling segment 12 and the filter segment 13 in the direction toward the cooling segment. By using this structure, the cooling ability to lower the temperature of the components or air generated by heating can be improved, and the retention of the components or air within the cooling segment can be suppressed, further improving the delivery amount of the components. You can do it.

In addition, examples of components produced by heating include flavor components derived from fragrances, nicotine and tar derived from tobacco leaves, and aerosol components derived from aerosol substrates.

The rod-shaped non-combustible heated cigarette 10 preferably has a rod-shaped shape that satisfies the shape with an aspect ratio of 1 or more, defined as follows.

Aspect ratio=h/w

w is the width of the bottom of the rod-shaped body (in this specification, it is taken as the width of the bottom of the tobacco rod portion), h is the height, and it is preferable that h≥w. In this specification, the major axis direction is defined as the direction indicated by h. Therefore, even if w≥h, the direction indicated by h is called the major axis direction for convenience. The shape of the bottom is not limited and may be a polygon, a polygon with rounded corners, a circle, or an oval, and the width (w) is the diameter if the bottom is circular, the major axis if the bottom is oval, or polygonal or round. In the case of an edge polygon, it is the diameter of a circumscribed circle or the major axis of a circumscribed ellipse.

The length (h) of the major axis direction of the non-combustible heated cigarette 10 is not particularly limited, and for example, it is usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. Additionally, it is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less.

The width w of the bottom of the rod-shaped body of the non-combustible heated cigarette 10 is not particularly limited, and is usually 5 mm or more, for example, and is preferably 5.5 mm or more. Moreover, it is usually 10 mm or less, preferably 9 mm or less, and more preferably 8 mm or less.

The ventilation resistance in the long axis direction per cigarette of the non-combustible heated cigarette 10 is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 8 mmH ₂ O or more, preferably 10 mmH ₂ O or more, and 12 mmH ₂ O or more. More preferably, it is usually 100 mmH ₂ O or less, preferably 80 mmH ₂ O or less, and more preferably 60 mmH ₂ O or less.

Ventilation resistance is measured according to the ISO standard method (ISO6565: 2015) using, for example, a filter ventilation resistance meter manufactured by Cerlian. Ventilation resistance refers to a predetermined amount of air flowing from one end surface (first end surface) to the other end surface (second end surface) in a state where air is not transmitted through the side surface of the non-combustible heated cigarette 10. This refers to the air pressure difference between the first cross section and the second cross section when air at a flow rate (17.5 cc/min) flows. The unit is generally expressed as mmH ₂ O. It is known that the relationship between ventilation resistance and the length of a non-combustion heated cigarette is proportional in the length range usually used (length 5 mm to 200 mm), and when the length is doubled, the ventilation resistance of the non-combustion heated cigarette is doubled.

[Mouthpiece part]

The configuration of the mouthpiece portion 14 is not particularly limited as long as it includes the filter segment 13 including the filter medium, and may be composed of only the filter segment 13, or may also include the cooling segment 12 and the filter medium. It includes a filter segment 13 including, and the cooling segment 12 is configured to be sandwiched adjacent to the tobacco rod portion 11 and the filter segment 13 with respect to the axial direction of the non-combustible heated cigarette 10. It can be done. When the mouthpiece portion 14 consists of only the filter segment 13, the coolant is contained in the filter segment 13, but the mouthpiece portion 14 is separated from the filter segment 13 and the cooling segment 12. When configured, the coolant may be contained in at least one of the filter segment 13 and the cooling segment 12. In particular, from the viewpoint of improving the cooling effect, it is preferable that the mouthpiece portion 14 has a cooling segment 12, and that at least the cooling segment 12 contains the above coolant, and the filter segment 13 and both sides of the cooling segment 12 contain said coolant.

The ratio of the lengths of the cooling segment 12 and the filter segment 13 (cooling segment:filter segment) in the length of the long axis direction of the mouthpiece portion 14 is not particularly limited, but the delivery amount of fragrance However, from the viewpoint of appropriate aerosol concentration, it is usually 0.60 to 1.40: 0.60 to 1.40, preferably 0.80 to 1.20: 0.80 to 1.20, more preferably 0.85 to 1.15: 0.85 to 1.15, and 0.90 to 1.10: 0.90 to 1.10. It is more preferable, and it is especially preferable that it is 0.95-1.05:0.95-1.05. In particular, if the cooling segment 12 is lengthened, particle formation of aerosol or the like can be promoted and a good flavor can be realized, but if it is too long, adhesion of passing substances to the inner wall may occur.

By keeping the ratio of the lengths of the cooling segment 12 and the filter segment 13 within the above range, the cooling effect, the effect of suppressing loss due to the generated vapor and aerosol adhering to the inner wall of the cooling segment 12, and the filter The air volume and flavor adjustment functions are balanced and a good flavor can be obtained.

Hereinafter, the filter segment and cooling segment will be described in detail.

(filter segment)

The filter segment 13 is not particularly limited as long as it has the function of a general filter. For example, it can be used to process materials such as tow (also simply referred to as “tow”) made of synthetic fibers or paper into a cylindrical shape. You can use one. General functions of a filter include, for example, adjustment of the amount of air mixed when inhaling aerosol, etc., reduction of flavor, reduction of nicotine or tar, etc., but it is not required to have all of these functions. In addition, compared to cigarette products, in electrically heated tobacco products, which produce fewer components and tend to have a lower filling rate of the tobacco filling, it is also important to prevent the tobacco filling from falling while suppressing the filtration function. It is one of the functions.

In this embodiment, the filter segment may contain the coolant according to one embodiment of the present invention.

The proportion of the coolant to the entire filter segment is not particularly limited, and is usually 5 volume% or more, preferably 10 volume% or more, and more preferably 15 volume% or more. Moreover, it is usually 100 volume% or less, and is preferably 90 volume% or less.

There is no particular limitation on the method of incorporating the coolant according to one embodiment of the present invention into the filter segment 13, and for example, a material such as tow or paper made of synthetic fiber is powdered before being processed into a column shape. It can be done. Additionally, between the processing into a columnar shape and the wrapping treatment, it may be added to the inside of the column made of tow or paper, or may be retained.

The shape of the filter segment 13 is not particularly limited, and a known shape can be adopted, usually a cylindrical shape, and can be used in the following aspects.

Additionally, the filter segment 13 may be provided with sections such as cavities (center holes, etc.) or recesses whose circumferential cross-sections are hollow.

The circumferential cross-sectional shape of the filter segment 13 is substantially circular, and the diameter of the circle can be changed appropriately according to the size of the product, but is usually 4.0 mm or more and 9.0 mm or less, and 4.5 mm or more and 8.5 mm or less. It is preferable, and it is more preferable that it is 5.0 mm or more and 8.0 mm or less. In addition, when the cross section is not circular, the diameter of the circle is applied, assuming that the circle has an area equal to the area of the cross section.

The circumferential length of the cross-sectional shape of the filter segment 13 in the circumferential direction can be appropriately changed according to the size of the product, but is usually 14.0 mm or more and 27.0 mm or less, and is preferably 15.0 mm or more and 26.0 mm or less, and is 16.0 mm. It is more preferable that it is 25.0 mm or less.

The axial length of the filter segment 13 can be changed appropriately according to the size of the product, but is usually 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less, and more preferably 20.0 mm or more and 30.0 mm or less. desirable.

The ventilation resistance per 120 mm of axial length of the filter segment 13 is not particularly limited, but is usually 40 mmH ₂ O or more and 300 mmH _{2 O or less, preferably 70 mmH 2 O} or more and 280 mmH ₂ O or less, and 90 mmH ₂ O or more. , it is more preferable that it is 260mmH ₂ O or less.

The above-mentioned ventilation resistance is measured according to the ISO standard method (ISO6565) using, for example, a filter ventilation resistance meter manufactured by Cerlian. The ventilation resistance of the filter segment 13 varies from one end face (first end face) to the other end face (second end face) in a state in which air is not transmitted through the side surface of the filter segment 13. It refers to the air pressure difference between the first cross section and the second cross section when air with a predetermined air flow rate (17.5 cc/min) is flowed. Units are generally expressed as mmH ₂ O. It is known that the relationship between the ventilation resistance of the filter segment 13 and the length of the filter segment 13 is proportional in the commonly used length range (length 5 mm to 200 mm), and when the length is doubled, the length of the filter segment 13 Ventilation resistance is doubled.

Additionally, the form of the filter segment 13 is not particularly limited, and may be a plain filter containing a single filter segment, a multi-segment filter containing a plurality of filter segments such as a dual filter or a triple filter, etc. When using a multi-segment filter, a filter segment containing the coolant according to one embodiment of the present invention and a filter segment not containing the coolant can be provided. In this case, the filter segment containing the coolant may be installed between the filter segment containing the coolant and the cooling segment, or the filter segment containing no coolant may be installed between the filter segment containing the coolant and the cooling segment. . From the viewpoint of easy adjustment of the cooling effect by the coolant, it is preferable that the filter segment containing the coolant is installed between the filter segment and the cooling segment that do not contain the coolant.

The density of the filter medium constituting the filter segment 13 is not particularly limited, but is usually 0.10 g/cm ³ or more and 0.25 g/cm ^{3 or less, and is preferably 0.11 g/cm 3 or} more and 0.24 g/cm ³ or less. And, it is more preferable that it is 0.12 g/cm ³ or more and 0.23 g/cm ³ or less.

The form of the filter medium contained in the filter segment 13 is not particularly limited, and a known form may be adopted, for example, one in which cellulose acetate tow is processed into a columnar shape. The single yarn fineness and total fineness of cellulose acetate tow are not particularly limited, but in the case of a mouthpiece with a circumference of 22 mm, the single yarn fineness is 5g/9000m or more and 12g/9000m or less, and the total fineness is 12000g/9000m or more and 35000g/9000m or less. desirable. The cross-sectional shapes of cellulose acetate tow fibers include circular, oval, Y-shaped, I-shaped, and R-shaped. In the case of a filter filled with cellulose acetate tow, triacetin may be added in an amount of 5% by weight or more and 10% by weight or less based on the weight of the cellulose acetate tow to improve the filter hardness. Additionally, instead of the acetate filter, a paper filter filled with sheet-shaped pulp paper may be used.

The filter segment 13 can be manufactured by a known method. For example, when synthetic fibers such as cellulose acetate tow are used as a material for the filter medium, a polymer solution containing a polymer and a solvent is spun into a fine fiber. ) and can be manufactured by crimping it. As the method, for example, the method described in International Publication No. 2013/067511 can be used.

The filter medium may include a crushable additive release container (for example, a capsule) containing a crushable outer shell such as gelatin. The aspect of the capsule (also called “additive release container” in the relevant technical field) is not particularly limited, and any known aspect may be adopted. For example, it can be used as a crushable additive release container containing a crushable outer shell such as gelatin. You can. In this case, the capsule, when broken before, during, or after use by a user of the tobacco product, releases the liquid or substance contained within the capsule (usually a flavoring agent), which in turn: While using tobacco products, it is transmitted to cigarette smoke, and after use, it is transmitted to the surrounding environment.

The shape of the capsule is not particularly limited; for example, it can be a easily destructible capsule, and its shape is preferably spherical. As additives contained in the capsule, any of the additives described above may be included, but those containing flavoring agents and activated carbon are particularly preferred. Additionally, as an additive, one or more types of materials that help filter smoke may be added. The form of the additive is not particularly limited, but is usually liquid or solid. Additionally, the use of capsules containing additives is well known in the art. Easily destructible capsules and methods for manufacturing the same are well-known in the technical field.

The flavoring agent may be, for example, menthol, spearmint, peppermint, fenugreek or clove, or medium-chain fatty acid triglyceride (MCT). The flavoring agent may be menthol, menthol, etc., or a combination thereof.

The filter segment 13 may be provided with a winding paper (filter plug wrapping paper) recommending the above-mentioned filter material from the viewpoint of improving strength and structural rigidity. The form of the wrapping paper is not particularly limited, and may include joints containing adhesive in one or more rows. The adhesive may contain a hot melt adhesive, and the hot melt adhesive may contain polyvinyl alcohol. Additionally, when the filter consists of two or more segments, it is desirable to recommend these two or more segments together for the winding paper.

The material of the wrapping paper is not particularly limited, and known materials can be used, and may also contain fillers such as calcium carbonate.

The thickness of the winding paper is not particularly limited and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less.

The basis weight of the wound paper is not particularly limited and is usually 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less.

In addition, the winding paper may or may not be coated, but from the viewpoint of being able to provide functions other than strength and structural rigidity, it is preferable that it be coated with a desired material.

The filter segment 13 may further include a center hole segment having one or more hollow portions. The center hole segment is usually arranged closer to the cooling segment than the filter medium, and is preferably arranged adjacent to the cooling segment.

The center hole segment is composed of a filled layer having one or more hollow portions and an inner plug wrapper (inner wrapper) covering the filled layer. For example, the center hole segment is composed of a filling layer having a hollow portion and an inner plug wrapper covering the filling layer. The center hole segment has the function of increasing the strength of the mouthpiece portion. The packed layer, for example, is filled with cellulose acetate fibers at high density, and a plasticizer containing triacetin is added in an amount of 6% by mass or more and 20% by mass or less relative to the mass of cellulose acetate, and has an inner diameter of ϕ1.0 mm or more and ϕ5. This can be done with a rod of 0 mm or less. Since the packed layer has a high packing density of fibers, during suction, air or aerosol flows only through the hollow portion and hardly flows inside the packed layer. Since the filling layer inside the center hole segment is a fiber filling layer, the tactile sensation from the outside during use rarely causes discomfort to the user. Additionally, the center hole segment may not have an inner plug wrapper and may maintain its shape by thermoforming.

The center hole segment and the filter medium may be connected, for example, by an outer plug wrapper (outer wrapper). The outer plug wrapper may be, for example, a cylindrical piece of paper. Additionally, the tobacco rod portion 11, the cooling segment 12, the connected center hole segment, and the filter medium may be connected by, for example, mouthpiece lining paper. These connections are made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper, and connecting the tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter media. You can connect it by putting it in and winding it. Additionally, these may be divided and connected multiple times with a plurality of lining papers.

(cooling segment)

The cooling segment 12 is sandwiched adjacent to the tobacco rod portion and the filter segment, and is typically a rod-shaped member provided with a cavity whose circumferential cross section is hollow, such as a cylinder.

The cooling segment of this embodiment may have the cavity filled with the coolant according to one embodiment of the present invention.

In this embodiment, there is no particular limitation on the method of filling the cooling segment with the coolant. For example, the cooling segment itself may be formed of the coolant molded into a desired shape, or may be used as a winding paper that can be used in the filter segment. These recommended items may be used as cooling segments. The coolant according to one embodiment of the present invention may exist uniformly throughout the cooling segment, or may exist concentrated in a part of the cooling segment. Specific examples in which the coolant exists concentrated in a portion of the cooling segment include a mode in which the coolant exists concentrated in the tobacco rod side or a filter segment side, and a mode in which the coolant exists concentrated in the periphery of the cross section perpendicular to the long axis direction. You can. Additionally, it is preferable that there is no gap between the coolant and other materials such as winding paper in the cross section perpendicular to the long axis direction.

The proportion of the coolant to the entire cooling segment is not particularly limited, and from the viewpoint of improving cooling efficiency, it is usually 5 volume% or more, preferably 10 volume% or more, and more preferably 15 volume% or more. Moreover, it is usually 100 volume% or less, and is preferably 90 volume% or less.

As shown in FIG. 1, the cooling segment 12 may be provided with openings V (also referred to as “ventilation filters Vf” in the technical field) in its circumferential direction and concentrically. Additionally, the number of pores (V) is not particularly limited, and an example is 8. Additionally, the opening may exist in an area of 4 mm or more from the boundary between the cooling segment and the filter segment in the direction toward the cooling segment.

The presence of the opening V allows air to flow into the cooling unit from the outside during use, lowering the temperature of the ingredients or air flowing in from the tobacco rod unit. Additionally, by installing the cooling segment in an area of 4 mm or more from the boundary between the cooling segment and the filter segment toward the cooling segment, not only does the cooling ability improve, but it also reduces the retention of components generated by heating within the cooling segment. can be suppressed and the delivery amount of the ingredient can be improved.

Additionally, when an aerosol base material is used in the tobacco rod portion, the vapor containing the aerosol base material and tobacco flavor components generated when the tobacco rod portion is heated is liquefied by contact with air from the outside and the temperature is lowered, forming an aerosol. This can promote its creation.

Additionally, when the apertures V existing in concentric circles are treated as one aperture group, the aperture group may be one or two or more. When two or more open hole groups exist, from the viewpoint of improving the delivery amount of components generated by heating, the open hole group is not provided in an area less than 4 mm in the direction of the cooling segment from the boundary between the cooling segment and the filter segment. It is desirable.

Additionally, if the non-combustible heated cigarette 10 is in an embodiment in which the tobacco rod portion 11, the cooling segment 12 and the filter segment 13 are recommended with chip paper 15, the chip paper 15 may have a cooling segment. It is preferable that the opening is installed at a position immediately above the opening (V) provided at (12). When manufacturing such a non-combustible heated cigarette 10, it may be recommended to prepare chip paper 15 provided with apertures overlapping with the apertures V, but from the viewpoint of ease of manufacture, a cooling segment without the apertures V After manufacturing the non-combustible heated cigarette 10 using (12), it is desirable to drill a hole through the cooling segment (12) and the chip paper (15) at the same time.

The area where the opening V exists is an area that is 2 mm or more away from the boundary between the cooling segment 12 and the filter segment 13 in the direction toward the cooling segment, from the viewpoint of improving the delivery of components generated by heating. Although it is not particularly limited, from the viewpoint of further improving the delivery of the component, it is preferably 3 mm or more, preferably 4 mm or more, more preferably 5 mm or more, and still more preferably 5.5 mm or more, and further ensuring the cooling function. From a viewpoint, it is preferable that it is 15 mm or less, more preferably 10 mm or less, and even more preferably 6 mm or less.

From the viewpoint of improving the delivery of components produced by heating, the area where the opening (V) exists is preferably an area that is 22 mm or more away from the mouth end of the non-combustion heated tobacco in the cooling segment direction, and is preferably 23 mm or more. , it is preferably 24 mm or more, more preferably 25 mm or more, more preferably 25.5 mm or more, and from the viewpoint of securing the cooling function, it is preferably 35 mm or less, more preferably 30 mm or less, and still more preferably 26 mm or less. do.

In addition, considering the boundary between the cooling segment 12 and the tobacco rod portion 11 as a reference, when the axial length of the cooling segment 12 is 20 mm or more, the area where the opening V exists has a cooling function. From the viewpoint of securing, it is preferable that the area is 2 mm or more away from the boundary between the cooling segment 12 and the tobacco rod portion 11 in the direction toward the cooling segment, more preferably 5 mm or more, and still more preferably 10 mm or more, It is particularly preferable that it is 14.5 mm or more, and from the viewpoint of improving the delivery of components produced by heating, it is preferable that it is 18 mm or less, more preferably 16 mm or less, and even more preferably 14.5 mm or less.

The diameter of the pore (V) is not particularly limited, but is preferably 100 μm or more and 1000 μm or less, and more preferably 300 μm or more and 800 μm or less. It is preferable that the pores are approximately circular or approximately oval, and in the case of approximately oval, the diameter indicates the major axis.

The length of the cooling segment in the major axis direction can be appropriately changed according to the size of the product, but is usually 4 mm or more, preferably 5 mm or more, more preferably 26 mm or more, and usually 31 mm or less, preferably 26 mm or less, It is more preferable that it is 21 mm or less. By setting the length of the major axis of the cooling segment to more than the above lower limit, sufficient cooling effect can be ensured and good flavor can be obtained, and by setting it to less than the above upper limit, loss due to the generated vapor and aerosol adhering to the inner wall of the cooling segment is reduced. It can be suppressed.

[Cigarette loading part]

The aspect of the tobacco rod portion 11 is not particularly limited as long as it is a known aspect, but is usually an aspect in which the tobacco filling is recommended as a wrapper. The tobacco filling is not particularly limited, and known materials such as tobacco flesh and reconstituted tobacco sheets can be used. Additionally, the tobacco filling may contain an aerosol base material. The aerosol substrate is a substrate that generates an aerosol by heating, and examples include glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.

The content of the aerosol base in the tobacco filling is not particularly limited, and is usually 5% by weight or more, preferably 10% by weight or more, based on the total amount of the tobacco filling, from the viewpoint of sufficiently generating an aerosol and imparting a good flavor. And, it is usually 50% by weight or less, and preferably 15% by weight or more and 25% by weight or less.

Additionally, the tobacco rod portion 11 may have a fitting portion with a heater member for heating a non-combustion heating type cigarette, etc.

The tobacco rod portion 11 formed by wrapping the tobacco filling in a wrapper preferably has a columnar shape, and in this case, the tobacco rod portion 11 relative to the width of the bottom of the tobacco rod portion 11 ) It is preferable that the aspect ratio expressed as the height in the long axis direction is 1 or more.

The shape of the bottom is not limited and can be a polygon, polygon with rounded corners, circle, ellipse, etc., and the width can be the diameter if the bottom is circular, the long axis if the bottom is oval, or the diameter of the circumscribed circle if it is a polygon or polygon with rounded edges. It is the long axis of a circumscribed oval. It is preferable that the height of the tobacco filling constituting the tobacco rod portion 11 is approximately 10 to 70 mm and the width is approximately 4 to 9 mm.

The length of the long axis direction of the tobacco rod portion 11 can be appropriately changed according to the size of the product, but is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, more preferably 18 mm or more, and, It is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less. In addition, the ratio of the length of the tobacco rod portion 11 to the length h in the major axis direction of the non-combustible heated cigarette 10 is usually 10% or more, and is 20% from the viewpoint of the balance between the delivery amount and the aerosol temperature. It is preferably more than 25%, more preferably 30% or more, and usually 60% or less, preferably 50% or less, more preferably 45% or less, and still more preferably 40% or less. do.

(Kwon Ji)

The composition of the wrapper is not particularly limited and can be made in a general manner, for example, one in which pulp is the main ingredient. Pulp includes wood pulp such as softwood pulp and broadleaf pulp, as well as non-fermented pulp such as flax pulp, hemp pulp, sisal pulp, or espart, which are generally used in wrapping paper for tobacco products. It may be obtained by grinding wood pulp.

As the type of pulp, chemical pulp, ground pulp, chemical ground pulp, thermomechanical pulp, etc. can be used by kraft cooking method, acidic/neutral/alkaline sulfite cooking method, soda salt cooking method, etc.

Using the above pulp, the base is prepared and made uniform during the papermaking process using a long mesh paper machine, a round mesh paper machine, a round mesh paper machine, etc. to produce a wrapper. Additionally, if necessary, a wet paper strength enhancer can be added to impart water resistance to the wrapping paper, or a sizing agent can be added to adjust the printing condition of the wrapping paper. In addition, internal additive aids for papermaking such as sulfuric acid bands, various anionic, cationic, nonionic, or amphoteric product yield improvers, water filterability improvers, and paper strength enhancers, and, Paper-making additives such as dyes, pH adjusters, anti-foaming agents, pitch control agents, or slime control agents can be added.

The basis weight of the wrapper base paper is, for example, usually 20 gsm or more, and preferably 25 gsm or more. Meanwhile, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, and more preferably 45 gsm or less.

The thickness of the wrapping paper having the above characteristics is not particularly limited, and is usually 10 μm or more, preferably 20 μm or more, and more preferably 30 μm or more from the viewpoint of rigidity, breathability, and ease of adjustment during papermaking. Additionally, it is usually 100 μm or less, preferably 75 μm or less, and more preferably 50 μm or less.

The non-combustible heated cigarette wrapper may have a square or rectangular shape.

When used as a wrapper for recommending cigarette filling (for producing a cigarette rod), the length of one side may be about 12 to 70 mm, the length of the other side may be 15 to 28 mm, and the preferred length of the other side is 15 to 28 mm. The length is 22 to 24 mm, and a more preferable length is about 23 mm. When recommending the tobacco filling as a column in a wrapping paper, for example, the end of the wrapping paper in the w direction and the end on the opposite side are overlapped by about 2 mm and glued to form a columnar paper tube, with the tobacco inside. It has a shape filled with filling. The size of the rectangular-shaped wrapper can be determined by the size of the finished cigarette rod portion 11.

When it is recommended to connect the cigarette rod portion 11 and other members adjacent to the cigarette rod portion 11, such as chip paper, the length of one side is 20 to 60 mm and the length of the other side is 15 to 28 mm. I can hear it.

In addition to the above-mentioned pulp, the wrapper may also contain filler. The content of filler can be 10% by weight or more and less than 60% by weight, and is preferably 15% by weight or more and 45% by weight or less based on the total weight of the wrapping paper.

In wrapping paper, it is preferable that the filler content is 15% by weight or more and 45% by weight or less within the preferred basis weight range (25gsm or more and 45gsm or less).

In addition, when the basis weight is 25gsm or more and 35gsm or less, it is preferable that the filler is 15% by weight or more and 45% by weight or less, and when the basis weight is more than 35gsm and 45gsm or less, the filler is preferably 25% by weight or more and 45% by weight or less.

As a filler, calcium carbonate, titanium dioxide, or kaolin can be used, but it is preferable to use calcium carbonate from the viewpoint of improving flavor and whiteness, etc.

Various auxiliaries other than base paper and filler may be added to the wrapping paper, for example, a water resistance improver may be added to improve water resistance. Water resistance improvers include wet strength enhancers (WS agents) and sizing agents. Examples of wet strength enhancers include urea formaldehyde resin, melamine formaldehyde resin, and polyamide epichlorohydrin (PAE). Additionally, examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

As an adjuvant, a strength enhancer may be added, and examples include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, and polyvinyl alcohol. In particular, it is known that the air permeability is improved by using a very small amount of oxidized starch (Japanese Patent Laid-Open No. 2017-218699).

Additionally, the wrapping paper may be appropriately coated.

A coating agent may be added to the wrapping paper on at least one of the two surfaces, the front and back sides. There are no particular restrictions on the coating agent, but a coating agent that can form a film on the surface of paper and reduce liquid permeability is preferred. For example, alginic acid and its salts (e.g. sodium salt), polysaccharides such as pectin, cellulose derivatives such as ethylcellulose, methylcellulose, carboxymethylcellulose, and nitrocellulose, starch or its derivatives (e.g. carboxymethyl starch, ether derivatives such as hydroxyalkyl starch and cationic starch, and ester derivatives such as acetic acid starch, phosphoric acid starch, and octenyl succinic acid starch).

[Chip Paper]

The structure of the chip paper 15 is not particularly limited and can be in a general form, for example, one in which pulp is the main ingredient. As pulp, in addition to wood pulp such as softwood pulp and broadleaf pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and espart, which are generally used in wrapping paper for tobacco products, are made into pulp. It may be obtained by manufacturing. These pulps may be used as individual types, or may be used in combination of multiple types in an arbitrary ratio.

Additionally, the chip paper 15 may be comprised of one sheet, or may be comprised of multiple sheets or more.

As a type of pulp, chemical pulp, ground pulp, chemical ground pulp, thermomechanical pulp, etc. can be used by kraft cooking method, acidic/neutral/alkaline sulfite cooking method, soda salt cooking method, etc.

In addition, the chip paper 15 may be manufactured by a manufacturing method described later, or a commercially available product may be used.

The shape of the chip paper 15 is not particularly limited and can be, for example, square or rectangular.

The basis weight of the chip paper 15 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less.

The thickness of the chip paper 15 is not particularly limited and is usually 20 μm or more and 140 μm or less, preferably 30 μm or more and 130 μm or less, and more preferably 30 μm or more and 120 μm or less.

The air permeability of the chip paper 15 is not particularly limited, but is usually 0 Coresta units or more and 30,000 Coresta units or less, and is preferably greater than 0 Coresta units and 10,000 Coresta units or less. In addition, the air permeability referred to in this specification is a value measured in accordance with ISO 2965: 2009, and is expressed as the flow rate (cm ³ ) of gas passing through an area of 1 cm ² per minute when the differential pressure between both sides of the paper is 1 kPa. . 1 Coresta unit (1 C.U.) is cm ³ /(min·cm ² ) under 1 kPa.

In addition to the above-mentioned pulp, the chip paper 15 may contain fillers, for example, metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide, and aluminum oxide, barium sulfate, and sulfuric acid. Examples include metal sulfates such as calcium, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc. In particular, it is recommended to include calcium carbonate from the viewpoint of improving whiteness and opacity and increasing heating rate. desirable. In addition, these fillers may be used individually or in combination of two or more types.

In addition to the pulp and filler described above, the chip paper 15 may have various additives added to it, for example, to improve water resistance, it may have a water resistance improver. Water resistance improvers include wet strength enhancers (WS agents) and sizing agents. Examples of wet strength enhancers include urea formaldehyde resin, melamine formaldehyde resin, and polyamide epichlorohydrin (PAE). Additionally, examples of sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol with a saponification degree of 90% or more.

A coating agent may be added to the chip paper 15 on at least one of the two surfaces, the front and back surfaces. There are no particular restrictions on the coating agent, but a coating agent that can form a film on the surface of paper and reduce liquid permeability is preferred.

[Method for producing non-combustible heated cigarettes]

The method for producing the above-described non-combustion heated cigarette is not particularly limited, and known methods can be applied. For example, it can be manufactured by rolling up the cigarette rod portion and mouthpiece portion with chip paper.

＜Electrically heated tobacco products＞

An electrically heated tobacco product (also simply referred to as an “electrically heated tobacco product”) according to another embodiment of the present invention includes a heater member, a battery unit that serves as a power source for the heater member, and a device for controlling the heater member. An electrically heated tobacco product comprising an electrically heated device having a control unit and the non-combustible heated cigarette inserted into contact with the heater member.

The mode of the electrically heated tobacco product may be an mode that heats the outer peripheral surface of the non-combustible heated cigarette 10 as shown in FIG. 2, or the tobacco rod portion in the non-combusted heated cigarette 10 as shown in FIG. 3. (11) may be the sun heating from the inside. Additionally, the electric heating device 20 shown in FIGS. 2 and 3 is provided with an air introduction hole, but is not shown here. Hereinafter, the electrically heated tobacco product 30 will be described using FIG. 3. In addition, with respect to the non-combustible heated cigarette 10 in FIGS. 2 and 3, some of the symbols representing each configuration shown in FIG. 1 are omitted.

The electrically heated tobacco product 30 is used by inserting the non-combustible heated tobacco 10 described above into contact with the heater member 21 disposed inside the electrically heated device 20.

The electrically heated device 20 has a battery unit 22 and a control unit 23 inside a resinous sphere 24, for example.

When the non-combustible heated cigarette 10 is inserted into the electrically heated device 20, the outer peripheral surface of the cigarette rod portion 11 comes into contact with the heater member 21 of the electrically heated device 20, and immediately the cigarette rod portion 11 The entire outer peripheral surface of and a portion of the outer peripheral surface of the chip paper are in contact with the heater member 21.

The heater member 21 of the electric heating device 20 generates heat under control by the control unit 23. As the heat is transmitted to the tobacco rod portion 11 of the non-combustible heated cigarette 10, the aerosol base material, flavor components, etc. contained in the tobacco filling of the tobacco rod portion 11 volatilize.

The heater member 21 may be, for example, a sheet-shaped heater, a flat heater, or a regular heater. A sheet-shaped heater is a flexible sheet-shaped heater, for example, a heater containing a film (about 20 to 225 μm thick) of a heat-resistant polymer such as polyamide. A flat heater is a rigid flat heater (about 200 to 500 μm thick), for example, a heater that has a resistance circuit on a flat base material and uses that part as a heating part. Typically, a heater is a hollow or solid cylinder-shaped heater (about 200 to 500 μm thick), for example, a heater that has a resistance circuit on the outer peripheral surface of a metal cylinder, etc., and uses that part as a heating part. In addition, rod-shaped heaters and abstract heaters made of metal, etc., which have a resistance circuit inside and have the relevant part as a heating part, can also be mentioned. Typically, the cross-sectional shape of the heater may be a circle, ellipse, polygon, or polygon with rounded corners.

In the case of heating the outer peripheral surface of the non-combustible heated cigarette 10 as shown in FIG. 2, the above-described sheet-shaped heater, flat heater, or ordinary heater can be used. On the other hand, in the case of heating from the inside of the tobacco rod portion 11 in the non-combustion heated cigarette 10 as shown in FIG. 3, the above-described flat heater, column heater, or abstract heater can be used.

The length of the heater member 21 in the major axis direction can be within the range of L ± 5.0 mm when the length of the major axis direction of the cigarette rod portion 11 is L mm. The length of the heater member 21 in the long axis direction is Lmm or more to sufficiently transfer heat to the tobacco rod portion 11 and sufficiently volatilize the aerosol base material and flavor components contained in the tobacco filling, that is, from the viewpoint of aerosol delivery. It is preferable, and from the viewpoint of suppressing the occurrence of components that have undesirable effects on flavor, etc., L+0.5mm or less, L+1.0mm or less, L+1.5mm or less, L+2.0mm or less, L+2.5mm or less, It is preferable that it is L+3.0mm or less, L+3.5mm or less, L+4.0mm or less, L+4.5mm or less, or L+5.0mm or less.

The heating intensity, such as the heating time and heating temperature, of the non-combustible heated cigarette 10 by the heater member 21 can be set in advance for each electrically heated tobacco product 30. For example, after inserting the non-combustion heating type cigarette 10 into the electrical heating type device 20, preheating is performed for a certain period of time to heat the electrical heating type 20 in the non-combustion heating type cigarette 10. It can be set in advance so that the temperature of the outer peripheral surface of the inserted part is heated until it reaches

It is preferable that the above Specifically, 80℃, 90℃, 100℃, 110℃, 120℃, 130℃, 140℃, 150℃, 160℃, 170℃, 180℃, 190℃, 200℃, 210℃, 220℃, 230℃. ℃, 240℃, 250℃, 260℃, 270℃, 280℃, 290℃, 300℃, 310℃, 320℃, 330℃, 340℃, 350℃, 360℃, 370℃, 380℃, 390℃, It can be done at 400℃.

By heating by the heater member 21, the vapor containing components derived from the aerosol base or flavor components generated from the tobacco rod portion 11 is transferred to the cooling segment 12, the filter segment 13, etc. It reaches the user's oral cavity through the mouthpiece part 14 constructed from.

The opening V provided in the cooling segment 12 is shown in FIG. 4 from the viewpoint of promoting the inflow of air from the outside and suppressing retention of components or air generated by heating within the cooling segment 12. As shown, the end of the cooling segment 12 on the intake end side of the area in contact with the electric heating device 20 is closer to the intake end than the point indicated by arrow X in the drawing. It is desirable to exist in In addition, the insertion port of the non-combustion heating type cigarette 10 of the electric heating device 20 may be tapered as shown in FIG. 5 to facilitate insertion of the non-combustion heating type cigarette 10. In this case, The end on the intake end side of the area in contact with the electrical heating device 20 is the position indicated by arrow Y in the drawing. In addition, with respect to the non-combustible heated cigarette 10 in FIGS. 4 and 5, some of the symbols representing each configuration shown in FIGS. 1 to 3 are omitted.

Example

Although the present invention will be described in more detail by way of examples, the present invention is not limited to the description of the following examples as long as it does not deviate from the gist of the present invention.

＜Evaluation method for physical properties＞

[BET specific surface area]

The BET specific surface area of the granular activated carbon was measured using a fully automatic gas adsorption amount measuring device Autosorb·1·MP (manufactured by Quanta Chrome Co) based on the nitrogen gas adsorption method (BET multipoint method).

[pore capacity]

The pore capacity of granular activated carbon is based on pore distribution measurement using the nitrogen gas adsorption method (measurement using a fully automatic gas adsorption amount measurement device Autosorb 1 MP (made by Quanta Chrome Co)), and the pores are filled with liquid nitrogen. Assuming that it exists, it was calculated from the amount of adsorbed gas at P/PO = 0.998.

[median diameter]

The average particle diameter (median diameter) of the granular activated carbon and coolant was measured by a dry sieve method in accordance with the method described in JIS Z 8815. In the particle size distribution obtained from this measurement, the particle diameter (D50) at which the volume integration value was 50%, the particle diameter (D10) at 10%, and the particle diameter (D60) at 60% were evaluated.

[Apparent density]

The apparent densities of the granular activated carbon and coolant were evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Tap Density]

The tap density of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Compression rate]

The compressibility of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Angle of repose]

The angle of repose of the granular activated carbon and coolant was determined using a sample after 12 to 24 hours in an environment with a temperature of 22°C and a relative humidity of 60%, using a powder tester manufactured by Hosokawa Micron based on the method described in JIS 9301-2-2. Measured using PT-X.

[Spatchula angle]

The spatula angle of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Uniformity]

The uniformity of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Aeration Liquidity Index]

The aeration fluidity index of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Collapse angle]

The collapse angle of the granular activated carbon and the coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron under the same conditions as the above-mentioned angle of repose.

[Change]

It was evaluated by subtracting the collapse angle from the above angle of repose.

[Dispersion]

The degree of dispersion of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Classification Index]

The fractionation index of the granular activated carbon and coolant was evaluated using a powder tester PT-X manufactured by Hosokawa Micron.

[Hardness]

The hardness of the granular activated carbon and the coolant was determined by shaking using a furnace top shaker manufactured by Kagaku Kyoeisha, with the upper sieve limit being 0.500 and the lower sieve limit being 0.250, in accordance with the method described in JIS K1474 7.6.

[Production of coolant]

<Example 1>

As a porous granular substrate included in the coolant, granular activated carbon (Kuraraycoal GGS-N 28/70) was used. The BET specific surface area of the granular activated carbon was 1169 m ² /g, and the pore capacity was 0.493 mL/g.

The above-described granular activated carbon was added to SpirerPro (manufactured by Furointosangyo Co., Ltd.), and the rotor/agitator of the fluidized bed was rotated (rotor rotation speed was 200 rpm, agitator rotation speed was 300 rpm, and the agitator rotation was inverse to the rotation of the rotor). Rotation), supply of warm air (supply temperature 80°C, supply air volume 4.5 to 6.0 m ³ /min), and exhaust were performed while centrifugal rotation, floating flow, and swirling flow were performed.

While the activated carbon was flowing, a propylene glycol aqueous solution of water:propylene glycol = 50:50 was formed into a mist and was gradually added at a spray rate of 380 mL/min.

The solution addition speed, warm air temperature, and air supply amount were adjusted so that the increase in moisture content by solution addition and the amount of moisture removal by warm air were balanced so that activated carbon could maintain a level of moisture that could maintain a fluid state.

Efu to which the entire solution was added was dried while flowing by supplying and exhausting warm air until the moisture content of the granules reached around 3 to 9% by weight.

The propylene glycol content of the obtained coolant was 28.0% by weight.

The physical properties of the granular activated carbon and coolant are shown in Table 1 below.

<Example 2>

A coolant was produced in the same manner as in Example 1, except that the granular activated carbon was changed from Kuraraycoal GGS-N 28/70 to Kuraraycoal GGS-T 28/70.

The BET specific surface area of the activated carbon (Kuraraycoal GGS-T 28/70) was 728 m ² /g, and the pore capacity was 0.345 mL/g.

Additionally, the content of propylene glycol in the obtained coolant was 19% by weight.

The physical properties of the granular activated carbon and coolant are shown in Table 1 below.

＜Evaluation of cooling effect＞

The cooling effect was evaluated using a heated air load test device (Endo Science Co., Ltd.) capable of performing evaluation in the evaluation system shown in FIG. 6. Specifically, first, compressed air (dry) is sent to the water 44 from arrow A. At this time, the compressed air is sent as the pressure gauge 41 indicates 0.65 MPa, and the pressure is controlled by the regulator 42 so that the pressure is 0.5 MPa, and the flow rate of the compressed air is 10 mL/min to 20 mL/min. It was controlled with a thermal mass flow meter/controller 43 (MODEL 8500, manufactured by Coprock Co., Ltd.) so that min.

Next, the air sent to the water 44 is sent to the three-necked flask (50 mL) 52. At this time, using the temperature controller 45 (Fine Thermo DGN-100, manufactured by Hakko Denki Co., Ltd.), the pipe heater 47 (Co., Ltd.) is installed so that the temperature of the water measured by the thermometer 46 is 50°C. Water 44 was heated with a Hakko Denki product (1 KW), and the air flow rate and moisture content were controlled. In addition, in order to control the temperature of the air in the three-neck flask (50 mL) 52, a temperature controller 48 (temperature controller TR2-303, manufactured by Toho Electronics Co., Ltd.) and a small flow gas heater ( 49) (manufactured by Shinnetsu Kogyo Co., Ltd.), and temperature controller 50 (manufactured by Toho Denshi Co., Ltd., temperature controller TR2-303) and small-flow gas heater 51 (manufactured by Shinnetsu Kogyo Co., Ltd.) was used. By these means, the air sent to the three-necked flask (50 mL) 52 was controlled to have a temperature of 85.8°C, a moisture content of 82.8 g/m ³ , and a flow rate of 2.59 L/min.

Next, the air sent to the three-neck flask (50 mL) 52 passes through the sample container 53, is sent to the three-neck flask (50 mL) 54, and is finally released from the arrow B. At this time, using a touch-type recorder (57) (manufactured by Keyence Corporation), the temperature in the three-necked flask (50 mL) (52) was recorded using a thermocouple (56) (manufactured by Hakko Denki Co., Ltd., type K). ) and the temperature of the three-necked flask (50 mL) (54) were recorded using a thermocouple (55) (K type, manufactured by Hakko Denki Co., Ltd.), and cooling was performed from the difference between their temperatures. The effect was evaluated (actually, since the temperature inside the three-necked flask (50 mL) 52 was kept constant, the evaluation was performed at the temperature inside the three-necked flask (50 mL) 54). The evaluation time (measurement time) was about 300 seconds. Additionally, as the sample container 53, the top and bottom of the ventilation direction of a glass tube with an inner diameter of 7.0 mm and an outer diameter of 10.0 mm, into which a sample can be placed, is made of a plain weave SUS mesh with a sieve size of 198 μm and a wire diameter of 0.12 mm. The one covered with was used.

When nothing is placed in the sample container 53 in FIG. 6 (empty), and in the sample container 53, IQOS (manufactured by Philip Morris), a commercially available electric heating tobacco product, is used for the purpose of cooling. PLA (polylactic acid) film filter (PLA sheet), a hollow filter used in IQOS for the purpose of cooling or suppressing heat transfer to the outside, the coolant obtained in Example 1 above, and the above implementation The evaluation results of the cooling effect when each of the coolants obtained in Example 2 were added are shown in Figure 7. In Figure 7, the horizontal axis is the measurement time, and the vertical axis is the measurement temperature in the three-necked flask (50 mL) 54. In addition, in the case of the above PLA sheet, the 18 mm rod part taken out from the iQOS having a rod part made of a PLA sheet was put into the sample container 53 for measurement, and in the case of the above hollow filter, the rod part of the hollow filter was measured. Three 8 mm rods taken out from the iQOS were cut into 6 mm pieces, and these were overlapped in the ventilation direction to make 18 mm, and then placed in the sample container 53 for measurement. In addition, the coolant obtained in Example 1 and the coolant obtained in Example 2 were each added in an amount of 0.7 cc and measured.

From the results in FIG. 7, the cooling effect when adding the PLA sheet, the coolant of Example 1, or the coolant of Example 2 is greater compared to the case where nothing is placed in the sample container 53 or a hollow filter is placed. In addition, it was found that Example 1 had a cooling effect similar to that of the PLA sheet, and that Example 2 had a cooling effect superior to that of any sample.

This is believed to be due to the fact that the coolant particles have a high heat removal ability and the porous rod has a structure that utilizes the heat removal ability of the coolant particles.

From the above, by using the coolant according to one embodiment of the present invention, the efficiency, safety, and stability are excellent, and the aerosol is produced without adversely affecting the flavor of the aerosol and suppressing the influence on the production cost. It was found that it is possible to provide a coolant for non-combustible heated cigarettes capable of achieving a temperature reduction, a non-combustible heated cigarette having the coolant, and an electrically heated tobacco product.

10 Non-combustible heated cigarettes
11 Cigarette rod part
12 cooling segments
13 filter segments
14 Mouthpiece part
15 chip paper
V aperture
20 Electrically heated devices
21 Heater absent
22 battery unit
23 control unit
24 sphere
30 Electrically heated tobacco products
41 pressure gauge
42 regulator
43 Thermal Mass Flow Meter/Controller
44 water
45 temperature controller
46 thermometer
47 pipe heater
48, 50 thermostat
49, 51 Small flow gas heater
52, 54 3-neck flask
53 Sample container
55, 56 thermocouple
57 Touch recorder

Claims (11)

Containing a polyhydric alcohol and a porous granular substrate,
A coolant for a non-combustible heated cigarette, wherein the granular substrate is impregnated with the polyhydric alcohol. In claim 1,
A coolant for non-combustible heated cigarettes, wherein the content of the polyhydric alcohol in the coolant for non-combustible heated cigarettes is 3% by weight or more and 39% by weight or less. In claim 1 or claim 2,
A coolant for non-combustible heated cigarettes, wherein the porous granular substrate is at least one selected from the group consisting of charcoal, calcium carbonate, cellulose, acetate, sugar, starch, and chitin. The method according to any one of claims 1 to 3,
A coolant for non-combustible heated cigarettes, wherein the porous granular substrate has a pore capacity of 0.3 mL/g or more and 0.8 mL/g or less. The method according to any one of claims 1 to 4,
A coolant for non-combustible heated cigarettes with an average particle diameter of 212 μm or more and 600 μm or less. The method according to any one of claims 1 to 5,
A coolant for non-combustible heated cigarettes having an apparent density of 0.55 g/cm ³ or more and 0.80 g/cm ³ or less. A non-combustion heated cigarette having a mouthpiece portion containing the coolant for a non-combustion heated cigarette according to any one of claims 1 to 6. In claim 7,
A non-combustible heated cigarette, wherein the mouthpiece portion has a cooling segment, and at least the cooling segment contains a coolant for the non-combustible heated cigarette. An electric heating type device including a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member, and the device according to claim 7 or claim 8, which is inserted so as to contact the heater member. An electrically heated tobacco product consisting of non-combustible heated tobacco. A step of obtaining granules by spraying or dropping a solution containing a polyhydric alcohol onto a porous granular substrate;
B process of drying the granules,
A method for producing a coolant for non-combustible heated cigarettes, comprising a. In claim 10,
In step A, a method for producing a non-combustible heated tobacco coolant, wherein granules are obtained by spraying or dropping the solution onto the flowing porous granular substrate while flowing the porous granular substrate.