WO2023112712A1

WO2023112712A1 - Segment for flavor inhalation article containing terpenoid compound

Info

Publication number: WO2023112712A1
Application number: PCT/JP2022/044489
Authority: WO
Inventors: 裕介七崎
Original assignee: 日本たばこ産業株式会社
Priority date: 2021-12-15
Filing date: 2022-11-25
Publication date: 2023-06-22

Abstract

Provided is a segment for a flavor inhalation article, said segment having a base material to which a molten liquid comprising a terpenoid compound has been added.

Description

Segment for flavor inhalation articles containing terpenoid compounds

The present invention relates to segments for flavor inhalation articles containing terpenoid compounds.

Terpenoid compounds such as menthol are often used in internal or external compositions as cooling agents. In particular, there is a certain demand for smoking articles to which menthol is added. For example, Patent Document 1 discloses a method of adding flavor to tobacco materials, and Patent Document 2 discloses a method of adding flavor to a filter. However, in smoking articles to which menthol is added, menthol crystallizes and adheres to the container or the like depending on environmental conditions, causing deterioration in the apparent quality of the product. As a method for suppressing crystallization, a method has been proposed in which the basis weight of wrapping paper is increased to prevent crystals from precipitating out (Patent Document 3). A heating treatment is required to suppress crystallization to the outside. A method of adding 10 to 50% of sterols to menthol has also been proposed (Patent Documents 4 and 5).

JP-A-6-277035 Patent No. 4530371 WO2020/230577 JP-A-2008-239986 JP-A-2008-214233

As mentioned above, various methods have been proposed to suppress the crystallization of fragrances such as menthol when storing products, but there is still room for improvement. In view of such circumstances, it is an object of the present invention to provide a filling for flavor inhaling articles that suppresses crystallization of a flavor that may impair the appearance of the product over time.

Since menthol dissolves in ethanol and propylene glycol but does not dissolve in water or glycerin, its crystallization behavior is presumed to be similar to the crystallization of fats and oils. Crystallization of fats and oils is caused when they are placed in a supercooled state below their melting point, and the effects are the same regardless of whether they are bulk systems or emulsion systems. As shown in FIG. 1, crystallization and its growth are said to occur through the following steps (Handbook of Food Engineering, edited by Japan Society for Food Engineering, Asakura Shoten Co., Ltd.).
1) The molecules M in the supercooled state collide with each other to repeat the separation and aggregation.
2) Among them, crystal nuclei N having a size exceeding each critical radius appear.
3) A crystallized solid S is generated on the surface of the crystal nucleus, forming a solid-liquid interface, and crystal growth continues because the effect of free energy due to volume reduction due to crystallization is greater than the interface free energy.
4) The presence of impurities (for example, tobacco sheets or cigarette papers) in the crystal nucleus causes the presence of more interfaces than menthol alone, promoting crystallization.
5) Furthermore, the crystal nuclei coalesce and grow until the crystal becomes visible.

Since the melting point of menthol is 42-45°C, it is feared that menthol will be supercooled in an environment below 42°C, and then crystallize. However, the crystallization of menthol, which impairs the appearance of the product, does not occur in the summer when the ambient temperature is about 30° C., but rather occurs in the winter. Accordingly, the inventors focused on the fact that menthol is dissolved in a solvent in smoking articles. As shown in Patent Literature 2, a flavor such as menthol is usually dissolved in a solvent such as propylene glycol and added as a solution. As long as the saturation concentration of the solution is not exceeded, menthol exists as a liquid and crystals do not grow. However, as the ambient temperature decreases, the saturation concentration also decreases, and some menthol that is no longer soluble in the solvent precipitates and crystals grow. It is thought that Based on the above, the inventors have conceived that if a terpene compound such as menthol exists in a crystalline state in a smoking article, the phenomenon of subsequent crystallization can be reduced. The above problem was solved by adding

The above problems are solved by the present invention described below.
Aspect 1
A segment for flavor inhalation articles having a substrate to which a melt of a terpenoid compound is added.
Aspect 2
The segment of aspect 1, wherein the terpenoid compound is a terpene alcohol.
Aspect 3
3. The segment of aspect 2, wherein the terpene alcohol is menthol.
Aspect 4
A segment according to any of aspects 1-3, wherein the segment is a flavor attracting segment or a filter segment.
Aspect 5
the segment comprises a columnar packing of radius L as a substrate;
Let C be the amount of the terpenoid compound present in a region of 0.5 L in the direction orthogonal to the longitudinal direction from the central axis of the packing,
When the amount of the terpenoid compound present in the region of more than 0.5 L to L in the direction orthogonal to the longitudinal direction from the central axis of the segment is E,
C/E≧1.25;
The segment according to any one of aspects 1-4.
Aspect 6
The segment according to aspect 5, wherein C/E≧1.5.
Aspect 7
A segment according to aspect 6, wherein C/E≧2.
Aspect 8
A flavor-attracting segment or filter segment comprising a segment according to any one of aspects 1-7.
Aspect 9
A flavor inhalation article comprising a segment according to aspect 8.

According to the present invention, it is possible to provide a filling for a flavor inhaling article that suppresses crystallization that impairs the appearance of the flavor over time.

Diagram outlining crystallization and its growth Diagram illustrating the concentration of terpenoid compounds in the segment A diagram showing the degree of crystallization in Examples and Comparative Examples. A diagram showing the degree of crystallization in Examples and Comparative Examples. Diagram showing crystallization behavior of menthol melt and menthol solution A diagram showing one embodiment of a non-combustion heating tobacco flavor suction article Diagram showing one aspect of the non-combustion heating tobacco flavor suction system Diagram for explaining one aspect of the segment manufacturing method

The present invention will be described in detail below. In the present invention, "X to Y" includes X and Y which are the end values.

1. Segment for Flavor Inhalation Article A segment for flavor inhalation article is a member that constitutes the flavor inhalation article, and in one aspect refers to a member that includes a filler and a wrapper. A segment for flavor inhalation articles has a substrate to which a melt of a terpenoid compound is added.

(1) Terpenoid compound A terpenoid compound is a terpene derivative having a polar functional group such as a hydroxyl group or a carbonyl group among terpenes. Terpene is a general term for secondary metabolites of plants, insects, fungi, etc., having a hydrocarbon skeleton with isoprene as a structural unit. It is the name given to a group of 10-carbon compounds that were originally found in large quantities in essential oils, and is therefore systematized on the basis of 10 carbons. Terpenes having 10, 15, 20 and 30 carbon atoms are also called monoterpenes, sesquiterpenes, diterpenes and triterpenes, respectively. In this embodiment, monoterpenoids are preferred, examples of which include terpene alcohols such as menthol, geraniol, linalool, nerol, borneol, thymol, terpineol, and eucalyptol, menthone, camphor, piperitone, linalyl acetate, menthyl acetate, Eucalyptol, as well as lime oil. Among them, terpene alcohol is preferred, and menthol is more preferred.

The terpenoid compound is added to the base material described later as a melt. A melt is a liquid obtained from a terpenoid compound in an environment above its melting point. For example, in the case of a compound such as menthol that is solid at room temperature (20° C.), it is a liquid obtained by heating to the melting point (42° C.) or higher. A compound that is liquid at room temperature (20° C.), such as linalool, refers to the liquid compound itself. The temperature of the melt is not limited as long as it is the temperature at which the terpenoid compound is melted. However, excessively high temperatures may decompose the compound. From this point of view, the temperature of the melt is lower than the decomposition temperature, preferably "melting point + 20°C" or lower, more preferably "melting point + 10°C" or lower.

The method of adding the terpenoid compound to the base material is not limited. For example, a syringe can be used to inject or apply the melt to the substrate. Alternatively, the base material can be immersed in the melt to impregnate the base material with the terpenoid compound.

Although the amount of the terpenoid compound is not limited, it can be 0.1 to 10% by weight, preferably about 3 to 7% by weight, relative to 1 g of the absolute dry weight of the base material.

By adding the terpenoid compound to the base material in this way, it is possible to prevent the appearance of the product from being damaged by crystal growth on the surface of the base material, or the appearance of the product from being damaged by crystal growth in the storage container over time. can. Although the reason for this is not limited, it is presumed as follows. If the terpenoid compound is present in the segment in a supercooled state, crystal growth will occur on the surface of the filler over time, or the volatilized terpenoid compound will adhere to the wall surface of the storage container and grow crystal there. As a result, the appearance of the product is spoiled. However, when the melt of the terpenoid compound is added to the base material, the terpenoid compound is crystallized and stabilized in the base material, and crystal growth at other locations is suppressed. As a result, spoiling the appearance of the product is suppressed. In one aspect, the crystallinity of the terpenoid compound in the base material when the melt is added is 80% or more, 90% or more, or 95% or more. Crystallinity can be quantified by measuring the crystallization peak using thermal analysis such as DSC.

(2) Base material A base material is a material that constitutes a segment. From the viewpoint that the desired effect is more pronounced, the segment is preferably a flavor absorbing segment or a filter segment base material. That is, the base material is preferably a material for flavor-attracting segments or a material for filters.

Fillers and wrappers are examples of base materials for flavor suction segment materials. The filling is composed of tobacco material. A tobacco raw material is a raw material derived from a plant belonging to the genus Nicotiana. Tobacco raw materials are not limited, but tobacco leaves, lamina, backbones, residual stems, or shreds are preferable from the viewpoint of availability. Tobacco leaves are a general term for harvested tobacco leaves before ripening. One aspect of aging includes curing. Lamina is tobacco leaves from which the bones have been removed, and what has been removed is the backbone. Residual stems are the stems remaining in the field after harvesting tobacco. The chopped tobacco leaves, core ribs, etc., are chopped into a predetermined size. Among them, those in which the middle bone is carved to a predetermined size are also called cut middle bones. These may be harmonized. Harmonization treatment refers to condition adjustment in order to stabilize the moisture content. For example, the conditioning can be done by storing the lamina at 22° C. and 60% for 24 hours or more. Although the upper limit of the storage time is not limited, it is preferably within 30 hours. If the raw material contains a large amount of water, the raw material swells, facilitating diffusion of the medium into the cells, and facilitating the movement of the aroma components present inside the cells to the outside. On the other hand, if the raw material has a high water content, it will need to be dried after processing. From these points of view, the moisture content of the raw material after harmonization is preferably 5 to 40% by weight, more preferably 10 to 30% by weight. Alternatively, the tobacco raw material may be a tobacco sheet produced by a known method, or may be chopped or chopped strands of the sheet. Moreover, a well-known thing can be used as a wrapper.

Base materials for filter materials include fillers and wrappers. The packing is composed of fibers, such as cellulose acetate fibers, and filtering material, such as sheet material such as paper or polymer sheets. A known wrapper can be used.

The concentration of terpenoid compounds in the filling may be uniform or may be different. For example, when the filler is columnar, it is possible to increase the density near the central axis and decrease the density in the outer periphery. This aspect is particularly useful when the filler is a tobacco segment filler. This aspect will be described with reference to FIG. FIG. 2 is a cross-sectional view of the columnar segment 1 in which the wrapper 22 is filled with the columnar filler 21 and viewed from a cross section perpendicular to the longitudinal direction. Let L be the radius of the packing, and let C be the amount of terpenoid compound existing in a region of 0.5 L from the central axis of the packing in the direction orthogonal to the longitudinal direction. Let E be the amount of the terpenoid compound present in a region of more than 0.5 L to L from the central axis in the direction orthogonal to the longitudinal direction. C/E is preferably 1.25 or more, more preferably 1.5 or more, and still more preferably 2 or more. Although the upper limit of C/E is not limited, it is preferably 100 or less.

2. Production Method of Segment The segment is produced through a step of adding the melt of the terpenoid compound to the base material. The method of addition is as described above. When the base material is a filler, it is preferable to add the melt to the base material at the stage immediately before wrapping with the wrapper. As described above, in the columnar packing, it is preferable that the terpenoid compound concentration near the central axis is high, but if the melt is added to the base material immediately before wrapping with the wrapper, the concentration near the central axis can be efficiently increased. be able to. Specifically, the case of using shredded tobacco as the substrate will be described with reference to FIG. In the figure, 100 is a wrapper supplied continuously. Reference numeral 102 denotes a cut tobacco feeder that feeds cut tobacco 104 onto the wrapper. Reference numeral 106 denotes a melt supply device for supplying a melt of a terpenoid compound. Reference numeral 108 denotes a converging tube for forming a segment precursor 1' by winding a wrapper supplied with shredded tobacco to which melt has been added. The segment precursor 1' is cut to the desired size. In this way a segment 1 with filling can be produced. That is, the segment includes a step of supplying a wrapper, a step of supplying shredded tobacco on the wrapper, a step of supplying the melted tobacco to the shredded tobacco, and passing the wrapper supplied with the shredded tobacco through a converging tube. Manufactured through a winding process. Preferably, the wrapper and shredded tobacco are fed continuously.

The same applies when the filling is a filter filling. That is, the filter includes a step of supplying a wrapper, a step of supplying a filter material (for example, cellulose acetate fiber) onto the wrapper, a step of supplying the melt to the material, and a wrapper supplied with the material. It is manufactured through the process of passing it through a converging tube and winding it. Preferably, the wrapper and filter material are fed continuously.

3. Segment for flavor inhaling article (1) Flavor inhaling segment In one aspect, the flavor inhaling segment comprises a wrapper and a filling obtained by adding the melt of the terpenoid compound to a base material, which is filled in the wrapper. The filling includes a flavor source. If the flavor source includes tobacco material, the flavor inhalation segment is also referred to as tobacco segment. A known wrapper can be used. Also, the size of the flavor inhalation segments may be known.

(2) Filter segment The filter segment comprises a wrapper and a filler, which is filled in the wrapper and is obtained by adding the melt of the terpenoid compound to a base material. A filter segment is sometimes referred to herein as a "filter". Fillings used in filters include the filter materials described above. A known wrapper can be used. Also, the structure and size of the filter may be known.

4. Flavor Inhalation Article The term "flavor inhalation article" refers to an article for the user to inhale a flavor. Flavor inhaling articles that contain tobacco or tobacco-derived components are also referred to as "tobacco flavor inhaling articles." Tobacco flavor inhaling articles are divided into "combustion type tobacco flavor inhaling articles" (simply referred to as "smoking articles") that generate flavor and taste by combustion, and "non-combustion type tobacco flavor inhaling articles" that generate flavor and taste without burning. broadly classified. Furthermore, the non-combustion type tobacco flavor inhalation article is classified into a "non-combustion heating type tobacco flavor inhalation article" that generates a flavor and taste by heating, and a "non-combustion and non-heating type tobacco flavor inhalation article" that generates a flavor and taste without heating. It is divided into The segments containing the filler are suitable for combustion tobacco flavor inhalation articles (smoking articles) and non-combustion heating tobacco flavor inhalation articles. As smoking articles, known ones having tobacco segments and filter segments can be used. The flavor inhaling article will be described below by taking a combustion heating tobacco flavor inhaling article as an example.

Fig. 6 shows one embodiment of the non-combustion heating tobacco flavor suction article. As shown, the non-combustion heating tobacco flavor inhalation article 20 comprises a tobacco segment 20A, a cylindrical cooling segment 20B having perforations on its circumference, and a filter segment 20C. The non-combustion heating tobacco flavor inhalation article 20 may have other members. The axial length of the non-combustion heating tobacco flavor inhalation article 20 is not limited, but is preferably 40 to 90 mm, more preferably 50 to 75 mm, and even more preferably 50 to 60 mm or less. The circumference of the non-combustion heating tobacco flavor inhalation article 20 is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm. For example, the length of the tobacco segment 20A is 20 mm, the length of the cooling segment 20B is 20 mm, and the length of the filter segment 20C is 7 mm. The length of each of these members can be changed as appropriate according to manufacturability, required quality, and the like. Although FIG. 6 shows a mode in which the first segment 25 is arranged, only the second segment 26 may be arranged on the downstream side of the cooling segment 20B without arranging this.

1) Tobacco segment 20A
Filling 21 in tobacco segment 20A is prepared as described above. Since the filler 21 contains tobacco raw material as a base material, it is hereinafter also referred to as a “tobacco filler” 21 . The method of filling the tobacco filling 21 in the wrapper 22 is not particularly limited, but for example, the tobacco filling 21 may be wrapped in the wrapper 22 or the tobacco filling 21 may be filled in the cylindrical wrapper 22 . When the tobacco filling 21 has a longitudinal direction such as a rectangular shape, the longitudinal direction may be in an unspecified direction within the wrapper 22, and may be aligned with the axial direction of the tobacco segment 20A. Alternatively, they may be filled in alignment in a direction orthogonal to this. By heating the tobacco segment 20A, the tobacco components, aerosol-generating base material and water contained in the tobacco filling 21 are vaporized and provided for inhalation.

2) Cooling segment 20B
The cooling segment 20B is preferably constructed of a tubular member. The tubular member may be, for example, a paper tube 23 formed by processing cardboard into a cylindrical shape. Cooling segment 20B may also be formed by a thin sheet of material that is crumpled and then pleated, gathered, or folded to form channels. As such a material, for example, a sheet material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil can be used. The total surface area of the cooling segment 20B is appropriately adjusted in consideration of the cooling efficiency, and can be, for example, 300-1000 mm ² /mm. Cooling segment 20B is preferably provided with perforations 24 . Due to the presence of perforations 24, ambient air is introduced into cooling segment 20B during suction. As a result, the vaporized aerosol component generated by the heating of the tobacco segment 20A comes into contact with the outside air, and its temperature decreases, liquefying to form an aerosol. The diameter (spanning length) of the perforations 24 is not particularly limited, but may be, for example, 0.5 to 1.5 mm. The number of perforations 24 is not particularly limited, and may be one or two or more. For example, a plurality of perforations 24 may be provided on the circumference of the cooling segment 20B.

The cooling segment 20B can be rod-shaped with an axial length of, for example, 7 to 28 mm. For example, the axial length of cooling segment 20B may be 18 mm. The cooling segment 20B has a substantially circular axial cross-sectional shape and can have a diameter of 5 to 10 mm. For example, the cooling segment diameter can be about 7 mm.

3) filter segment 20C
The configuration of the filter segment 20C is not limited as long as it includes the filling. Fillings used in filters are hereinafter also referred to as "filter fillings". For example, filter segment 20C may consist of one or more packing layers. The outer side of the packing layer may be wrapped with one or more wrappers. The ventilation resistance of the filter segment 20C can be appropriately changed by the amount, material, etc. of the filter filling material filled in the filter segment 20C. For example, when the filter filling is cellulose acetate fiber, the ventilation resistance can be increased by increasing the amount of cellulose acetate fiber with which the filter segment 20C is filled. The packing density of the cellulose acetate fiber can be 0.13-0.18 g/cm ³ . The airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).

Although the length of the circumference of the filter segment 20C is not particularly limited, it is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm. The length of the filter segment 20C in the axial direction (horizontal direction in FIG. 6) can be selected from 4 to 10 mm, and the ventilation resistance is selected to be 15 to 60 mmH ₂ O/seg. The axial length of the filter segment 20C is preferably 5-9 mm, more preferably 6-8 mm. The shape of the cross section of the filter segment 20C is not particularly limited, and may be circular, elliptical, polygonal, or the like, for example. Also, the filter segment 20C may be directly added with destructible capsules containing perfume, perfume beads, and perfume.

The filter segment 20C may have a center hole portion as the first segment 25. The center hole portion is composed of a first filling layer 25a having one or more hollow portions and an inner plug wrapper (inner wrapping paper) 25b covering the filling layer. The center hole portion has a function of increasing the strength of the mouthpiece portion. The center hole portion does not have the inner plug wrapper 25b, and the shape may be maintained by thermoforming. Filter segment 20C may comprise second segment 26 . The second segment 26 is composed of a second filling layer 26a and an inner plug wrapper (inner wrapping paper) 26b covering the filling layer. The second filling layer 26a has an inner diameter of φ5.0 to φ1.0 mm, for example, filled with cellulose acetate fibers at a high density and hardened by adding 6 to 20% by weight of a plasticizer containing triacetin to the weight of the cellulose acetate. It can be a rod. Since the second packed layer has a high packing density of fibers, air and aerosol flow only in the hollow portion during suction, and hardly flow in the second packed layer. Since the second filling layer inside the center hole portion is a fiber filling layer, the feeling of touch from the outside during use does not make the user feel uncomfortable.

The first filling layer 25a and the second filling layer 26a are connected by an outer plug wrapper (outer wrapping paper) 27. The outer plug wrapper 27 can be, for example, a cylinder of paper. In addition, the tobacco segment 20A, the cooling segment 20B, and the connected first and second filling layers 25a and 26a are connected by a mouthpiece lining paper 28. As shown in FIG. These connections can be made, for example, by applying paste such as vinyl acetate paste to the inner surface of the mouthpiece lining paper 28 and winding the three members. These members may be connected in a plurality of times with a plurality of lining papers. Either or both of the first packing layer 25a and the second packing layer 26a can contain the filter packing. It is preferable to contain an agent.

A combination of a non-combustion heating tobacco flavor inhalation article and a heating device for generating an aerosol is also called a non-combustion heating tobacco flavor inhalation system. An example of such a system is shown in FIG. In the figure, the non-combustion heating tobacco flavor inhalation system comprises a non-combustion heating tobacco flavor inhalation article 20 and a heating device 10 for externally heating tobacco segments 20A.

The heating device 10 includes a body 11, a heater 12, a metal tube 13, a battery unit 14, and a control unit 15. The body 11 has a cylindrical recess 16, and the heater 12 and the metal tube 13 are arranged at positions corresponding to the tobacco segments 20A inserted therein. The heater 12 can be a heater based on electric resistance, and electric power is supplied from the battery unit 14 according to an instruction from the control unit 15 that performs temperature control, and the heater 12 is heated. Heat emitted from the heater 12 is transmitted to the tobacco segment 20A through the metal pipe 13 having high thermal conductivity. Although the drawing shows that the heating device 10 heats the tobacco segment 20A from the outside, the heating device 10 may heat the tobacco segment 20A from the inside. The heating temperature of the heating device 10 is not particularly limited, but is preferably 400°C or less, more preferably 150 to 400°C, and even more preferably 200 to 350°C. A heating temperature indicates the temperature of the heater of the heating device 10 .

[Example 1]
The shredded tobacco was wrapped around a wrapper by a conventional method to produce a tobacco segment in which the wrapper was filled with the shredded tobacco. However, just before rolling up, menthol was added to the shredded tobacco for flavoring. Flavoring was performed by garniture injection (GI) in which a melt obtained by heating menthol to a temperature above its melting point (45° C.) was injected into the cut tobacco using a nozzle. The amount of flavor added was 15 mg per 1 g of absolute dry weight of cut tobacco.

The tobacco segment was sealed in a container, stored at 5°C for 4 days, and the state of adhesion of menthol crystals to the container was observed. As a result, no crystals were confirmed as shown in FIG. 3(1).

The amount of menthol present in a region of 0.5 L in the direction orthogonal to the longitudinal direction from the central axis of the tobacco segment, where L is the radius of the filler in the tobacco segment, and more than 0.5 L in the direction orthogonal to the longitudinal direction The amount of menthol present in the ~L region was quantified as follows.
[Conditions for analysis of menthol]
40 mL of internal standard (n-octadecane)-containing methanol was added to a predetermined amount of shredded tobacco collected from the region, and extracted with shaking for 3 hours. The supernatant was collected in a vial and measured by GC-FID.
Column: DB-ALC1 30 m, 0.32 mm, 1.8 µm

The results are shown in Table 1. It was found that the menthol content C in the center was about twice as high as the menthol content E in the outside.

[Comparative Example 1]
A tobacco segment was produced in the same manner as in Example 1, except that a menthol solution was used instead of the GI method for flavoring. The tobacco segment was sealed in a container and stored at 5° C. for 4 days, and the state of adhesion of menthol crystals to the container was observed. As a result, adhesion of crystals was confirmed as shown in FIG. 3(2).

[Example 2]
Tobacco segments were prepared in the same manner as in Example 1, except that the ratios of the menthol content C in the core and the menthol content E in the exterior were 1.25 to 1.5 and 2.0. A combustible smoking article was prepared by a conventional method using the tobacco segment. After the smoking article was stored at 5° C. for 4 days, the tip cross section of the tobacco segment was observed. As shown in FIGS. 4(1) and 4(2), no crystal adhesion was observed.

[Comparative Example 2]
A comparative tobacco segment was prepared in the same manner as in Comparative Example 1, and a combustion-type smoking article was prepared and evaluated in the same manner as in Example 2, except that the comparative tobacco segment was used. Adherence of crystals was observed as shown in FIG. 4(3).

[Reference example]
Crystallization behavior was observed when a menthol melt was allowed to stand at room temperature. As a result, crystallization was confirmed as shown in FIG. 5(1). On the other hand, the behavior of crystallization was observed when a solution obtained by dissolving menthol in ethanol was allowed to stand at room temperature. As a result, no crystallization was confirmed as shown in FIGS. 5(2) and 5(3). FIG. 5(3) is a saturated solution, and it is clear from this result that menthol exists in a supercooled state in the solution.

N crystal nucleus with size exceeding each critical radius M supercooled molecule S crystallized solid 1 segment with filling 10 heating device 11 body 12 heater 13 metal tube 14 battery unit 15 control unit 16 recess 17 vent hole 20 Non-combustion heated flavor suction article

20A Tobacco segment

20B Cooling segment

20C Filter segment 21 Tobacco filler 22 Wrapper 23 Paper tube 24 Perforation 25 First segment 25a First packed layer 25b Inner plug wrapper 26 Second segment 26a Second packed layer 26b Inner plug wrapper 27 Outer plug wrapper 28 Lining paper 100 Continuously supplied wrapper 102 Cut tobacco supply device 104 Cut tobacco 106 Melt supply device for supplying terpenoid compound melt 108 Converging tube 1' Segment precursor

Claims

A segment for flavor inhaling articles having a base material to which a melt of a terpenoid compound is added.
The segment according to claim 1, wherein the terpenoid compound is a terpene alcohol.
The segment according to claim 2, wherein the terpene alcohol is menthol.
The segment according to any one of claims 1 to 3, wherein said segment is a flavor attracting segment or a filter segment.
the segment comprises a columnar packing of radius L as a substrate;
Let C be the amount of the terpenoid compound present in a region of 0.5 L in the direction orthogonal to the longitudinal direction from the central axis of the packing,
When the amount of the terpenoid compound present in the region of more than 0.5 L to L in the direction orthogonal to the longitudinal direction from the central axis of the segment is E,
C/E≧1.25;
The segment according to any one of claims 1-4.
The segment according to claim 5, wherein C/E≧1.5.
The segment according to claim 6, wherein C/E≧2.
A flavor suction segment or filter segment comprising the segment according to any one of claims 1 to 7.
A flavor suction article comprising the segment according to claim 8.