CN113038846A

CN113038846A - Non-combustion heating smoking article and non-combustion heating smoking system

Info

Publication number: CN113038846A
Application number: CN201980075449.5A
Authority: CN
Inventors: 山内悠司; 汤本拓也; 池田雅俊; 西野创
Original assignee: Japan Tobacco Inc
Current assignee: Japan Tobacco Inc
Priority date: 2018-11-14
Filing date: 2019-11-13
Publication date: 2021-06-25
Also published as: RU2765354C1; EP3881699A1; JPWO2020100927A1; EP3881699A4; TW202029895A; JP2023130469A; WO2020100927A1

Abstract

The present invention relates to a non-combustion heating smoking article, which comprises: the tobacco-containing segment comprises tobacco and an aerosol-generating substrate, a cylindrical cooling segment with a perforation on the periphery, and a cylindrical member with an inner diameter smaller than that of the cooling segment, wherein one end of the cooling segment in the direction of a cigarette holder is jointed with the member, and the perforation is arranged at a position 2-4 mm from the jointing surface.

Description

Non-combustion heating smoking article and non-combustion heating smoking system

Technical Field

The present invention relates to a non-combustion heated smoking article and a non-combustion heated smoking system.

Background

A general combustion smoking article (tobacco) for smoking by combustion includes a tobacco-containing segment formed by winding a tobacco filler into a cylindrical shape with a paper-made packing material, and a mouthpiece segment formed by winding a fiber formed of cellulose acetate or the like or a paper roll provided with wrinkles into a cylindrical shape with a paper-made packing material, in which a flavor, a humectant, an appropriate amount of moisture, and the like are added to dry tobacco leaves cut to a width of about 1 mm. The tobacco-containing section and the cigarette holder section are connected together through lining paper. The user ignites the end of the tobacco-containing segment with a lighter or the like, and draws the tobacco from the end of the mouthpiece segment to smoke. The front end of the tobacco-containing segment is burned at a temperature exceeding 800 ℃.

As an alternative to such a general combustion smoking article, a non-combustion heating smoking article and a non-combustion heating smoking system have been developed, in which combustion is replaced by heating (for example, patent documents 1 to 6). The heating temperature is lower than the combustion temperature in a burning smoking article, for example at 400 ℃ or lower. In a non-combustion heated smoking article, the tobacco segment-containing tobacco filler comprises an aerosol-generating substrate such as glycerin, Propylene Glycol (PG), triethyl citrate (TEC), triacetin, and the like. The aerosol-generating substrate is vaporised by heating and moved by suction to a cooling segment within the mouthpiece segment, after cooling more reliably generating an aerosol. When the aerosol is sucked from the filter segment provided at the end portion on the suction side in the mouthpiece segment, the aerosol is also sucked together, and therefore, the user's satisfaction can be ensured.

The non-combustion heating smoking system generally includes: a columnar non-combustion heating smoking article having a shape similar to that of a general combustion smoking article, and a heating device including a battery, a controller, a heater, and the like. Examples of the heater include a heater using a resistor and a heater using IH. Examples of a heating method of the heater using the resistance include: a method of heating from the outside of a non-combustion heated smoking article with a heater; a method of inserting a needle-like or blade-like heater into a tobacco-containing segment containing tobacco filler from the tip of a non-combustion heating smoking article to heat the smoking article, and the like.

Documents of the prior art

Patent document

Patent document 1: japanese patent No. 5292410

Patent document 2: japanese patent No. 5771338

Patent document 3: japanese Kohyo publication (JP-A) 2013-507906

Patent document 4: international publication No. 2017/198838

Patent document 5: japanese patent No. 5877618

Patent document 6: japanese patent laid-open publication No. 2016-506729

Disclosure of Invention

Problems to be solved by the invention

As described above, the aerosol-generating substrate (hereinafter also referred to as an aerosol-vaporized component) vaporized by heating is cooled mainly in the cooling stage, and condensation from vapor to particles occurs to become an aerosol. Here, the aerosol-vaporized component is required to be sufficiently cooled so that the user can perform segment smoking from the filter provided at the end on the mouthpiece side. As a cooling stage for a non-combustion heating smoking article, for example, patent document 4 discloses the following configuration: the outer periphery of the cylindrical portion of the cavity is provided with perforations, and external air is introduced from the perforations during suction, so that the aerosol vaporization component is cooled by contact with the external air.

However, when the aerosol-vaporized component is cooled only by the outside air introduced from the perforations provided in the cooling stage, a large amount of outside air must be introduced to sufficiently perform the cooling, and thus the odor of the aerosol is impaired. Accordingly, it is desirable to develop a method that enables the aerosol vaporization component to be sufficiently cooled without impairing the flavor of the aerosol.

An object of the present invention is to provide a non-combustion heated smoking article capable of sufficiently cooling an aerosol vaporization component without impairing the flavor of the aerosol, and a non-combustion heated smoking system provided with the non-combustion heated smoking article.

Means for solving the problems

The inventors have solved the above-described problems by setting the positions of the perforations of the cooling stage to a specific range. That is, the above problems can be solved by the following invention.

(1) A non-combustion heating smoking article is provided with:

a tobacco-containing segment comprising tobacco and an aerosol-generating substrate,

A cylindrical cooling section having a through hole on the outer periphery, and

a cylindrical member having a smaller inner diameter than the cooling stage,

wherein the content of the first and second substances,

the mouthpiece-direction end of the cooling segment is joined to the member,

the through hole is provided at a position of 2 to 4mm from the joint surface.

(2) The non-combustible heated smoking article of (1), wherein,

the component is a central hole section.

(3) The non-combustible heated smoking article of (1) or (2), wherein,

the filter is further provided downstream of the aforementioned member in the direction of the mouthpiece.

(4) The non-combustible heated smoking article according to any one of (1) to (3),

the cooling section is provided with a plurality of perforations on an outer periphery thereof.

(5) The non-combustible heated smoking article according to any one of (1) to (4),

the perforation is arranged 17-19 mm from the mouth end.

(6) The non-combustible heated smoking article of any one of (2) to (5),

the filter segment includes: a filler, an inner filter rod forming paper for winding the filler, and an outer filter rod forming paper for winding the filler, wherein at least one of the inner filter rod forming paper and the outer filter rod forming paper has a weight per unit area of 40g/m²The above paper having a thickness of 100 μm or more.

(7) A non-combustion heating smoking system is provided with:

the non-combustion heated smoking article according to any one of (1) to (6) above,

A heating device for heating the tobacco-containing segment.

(8) The non-combustion heating smoking system according to (7), wherein,

the heating temperature of the heating device is 150-400 ℃.

ADVANTAGEOUS EFFECTS OF INVENTION

The present invention can provide a non-combustion heating smoking article capable of sufficiently cooling an aerosol vaporization component without impairing the flavor of the aerosol, and a non-combustion heating smoking system including the non-combustion heating smoking article.

Drawings

Fig. 1 is a schematic diagram showing an outline of the present invention.

Fig. 2 is a cross-sectional view showing an example of the non-combustion heating smoking article of the present invention.

Fig. 3 is an example of the non-combustion heating smoking system of the present invention, where (a) is a schematic view showing a state before inserting a non-combustion heating smoking article into a heating device, and (b) is a schematic view showing a state where the non-combustion heating smoking article is inserted into the heating device and heated.

Description of the symbols

1 tobacco containing segments

2 cigarette holder segment

3 cooling section

4 cylindrical member having small inner diameter

4' central hole section

5 Filter segment

6 tobacco filler

7 packaging material

8 cylindrical member

9 perforation

10 first filling layer

11 first inner filter rod forming paper

12 second filling layer

13 second inner filter rod forming paper

14 outer filter stick forming paper

15 cigarette holder lining paper

20 non-combustion heated smoking article

21 heating device

22 body

23 Heater

24 metal tube

25 cell unit

26 control unit

27 recess

Detailed Description

[ non-burning heating smoking article ]

The non-combustion heating smoking article of the present invention comprises: the tobacco-containing segment comprises tobacco and an aerosol-generating substrate, a cylindrical cooling segment with a perforation on the periphery, and a cylindrical member with a smaller inner diameter than the cooling segment, wherein one end of the cooling segment in the direction of a cigarette holder is jointed with the member, and the perforation is arranged at a position 2-4 mm from the jointing surface. The distance is a distance between a center of the through hole and the joint surface. Fig. 1 shows an outline of the present invention. In fig. 1, 1 denotes a tobacco-containing segment, 3 denotes a cooling segment, 4 denotes a cylindrical member having an inner diameter smaller than that of the cooling segment, 9 denotes a through hole, O denotes a joint surface between the cooling segment 3 and the member 4, and t denotes a distance between the joint surface O and the center of the through hole. The aerosol-vaporized component generated in the tobacco-containing segment 1 is cooled in the cooling segment 3 to become an aerosol, and is introduced into the member 4. At this time, the aerosol is mixed with the air introduced from the perforation 9 and is further cooled. Since the inner diameter sharply decreases from the joining surface O toward the downstream side in the mouthpiece direction (hereinafter also simply referred to as "downstream"), the flow of the mixed flow of aerosol and air (hereinafter also simply referred to as "mixed flow") changes. In the present invention, the through hole 9 is provided at a specific position from the joint surface O. The perforation 9 can improve the mixing efficiency of the aerosol and the air, and from this viewpoint, the upper limit of t is 4mm or less. On the other hand, when the perforation 9 is too close to the joining surface O, the strength of the non-combustion heated smoking article is reduced. From this viewpoint, the lower limit of t is 2mm or more. Therefore, by setting t to the above range, the balance between the cooling efficiency and the strength can be optimized. In addition, in the present invention, since it is not necessary to introduce excessive air from the perforations 9, the aerosol can be cooled with good efficiency without reducing the smell of the fragrance. From this viewpoint, t is preferably 2.5 to 3.5 mm.

When the inner diameter of the member 4 is D and the inner diameter of the cooling stage 3 is D, D/D is preferably 0.4 to 0.7, more preferably 0.5 to 0.7, from the viewpoint of rapidly changing the flow of the mixed flow around the joint surface O. When D/D is in this range, the flow of the mixed flow can be changed from laminar flow to turbulent flow at the joint surface O. The inner diameter d is not particularly limited, but is preferably 2.8 to 4.8 mm.

The non-combustible heated smoking article of the invention may be provided with other components, such as a filter segment, downstream of the component 4. Therefore, the distance from the mouthpiece end to the center of the perforation 9 varies depending on the size of the member disposed downstream, but in one embodiment, it is preferably 17 to 19 mm.

The member 4 is preferably a central bore section, preferably with a filter section arranged downstream of the member 4. Figure 2 shows a preferred form of the non-combustion heated smoking article of the present invention.

In fig. 2, 20 is a non-burning heated smoking article, 1 is a tobacco-containing segment, and 2 is a mouthpiece segment. The mouthpiece section 2 includes: a cooling section 3, a central bore section 4' as the above-mentioned components, and a filter section 5. During smoking, the tobacco-containing segment 1 is heated and drawn from the end of the filter segment 5.

The tobacco-containing segment 1 has: a tobacco filler 6 containing tobacco and an aerosol-generating substrate, and a tubular wrapping material 7 covering the tobacco filler 6. The tobacco filler 6 may further contain a volatile flavor component and water. The size of the tobacco used as the filler and the method of producing the same are not limited. For example, cut tobacco in which dried tobacco leaves are cut into pieces having a width of 0.8 to 1.2mm can be used. When the shredded tobacco is cut into the above width, the length of the shredded tobacco is about 5-20 mm. Further, the dried tobacco leaves may be pulverized into a uniform material having an average particle diameter of about 20 to 200 μm, and then processed into pieces, and the pieces may be cut into tobacco shreds having a width of 0.8 to 1.2 mm. When the shredded tobacco is cut into the above width, the length of the shredded tobacco is about 5-20 mm. Further, the tobacco sheet may be collected and processed without being cut into pieces, and used as filler. Further, the plurality of cylindrical pieces may be arranged concentrically. Similarly, when the dried tobacco leaves are cut and used, and when the tobacco leaves are used in the form of a sheet after being pulverized and homogenized, various types of tobacco can be used as the tobacco contained in the tobacco filler. Yellow seed, burley seed, oriental tobacco seed, indigenous variety, and other tobacco (Nicotiana tabacum) line varieties, and yellow flower tobacco (Nicotiana rustica) line varieties can be appropriately mixed and used to achieve the target taste. The details of the above tobacco varieties are disclosed in "the tobacco classics, the tobacco general research center, 2009.3.31".

There are a number of conventional methods for pulverizing tobacco and processing the same into a homogenized sheet. The first is a sheet made by a papermaking process, the second is a cast sheet prepared by mixing and homogenizing a sheet with a suitable solvent such as water, casting the sheet into a thin homogenized product on a metal plate or a metal plate belt, drying the cast sheet, and the third is a rolled sheet prepared by mixing and homogenizing a sheet with a suitable solvent such as water, and then extruding the sheet. Details of the types of the above-mentioned homogenized sheets are disclosed in "the tobacco classics, the center for tobacco general research, 2009.3.31".

The filling density of the tobacco filler 6 is not particularly limited, and is usually 250mg/cm from the viewpoint of ensuring the performance of the non-combustion heating smoking article 20 and imparting a good taste and flavor³Above, preferably 320mg/cm³The concentration of the above-mentioned metal salt is usually 520mg/cm³Hereinafter, it is preferably 420mg/cm³The following. Specifically, in the case of the tobacco-containing segment 1 having a circumference of 22mm and a length of 20mm, the content of the tobacco filler 6 in the tobacco-containing segment 1 may be set to a range of 200 to 450mg, preferably 280 to 400mg, per tobacco-containing segment.

The aerosol-generating substrate is a material that can generate an aerosol by heating, and is not particularly limited, and examples thereof include: glycerin, Propylene Glycol (PG), triethyl citrate (TEC), triacetin, 1, 3-butanediol, and the like. One of these may be used, or two or more of these may be used in combination.

The type of the volatile perfume component is not particularly limited, and from the viewpoint of imparting a good odor absorption, there may be mentioned: acetoanisole, acetophenone, acetylpyrazine, 2-acetylthiazole, alfalfa extract, pentanol, amyl butyrate, trans-anethole, anise oil, apple juice, mirabilis oil, beeswax absolute (beeswax absolute), benzaldehyde, Benzoin resin (Benzoin resinoid), benzyl alcohol, benzyl benzoate, benzyl phenylacetate, benzyl propionate, 2, 3-butanedione, 2-butanol, butyl butyrate, butyric acid, caramel, cardamom oil, carob absolute (carob absolute), beta-carotene, carrot juice, L-carvone, beta-carotene, cassia oil, cedar wood oil, celery seed oil, chamomile oil, cinnamaldehyde, cinnamic alcohol, cinnamyl cinnamate, citronella oil, DL-citronellol, sage extract, cocoa, coffee, cocker oil, caraway oil, cuminal, and the like, Artemisia annua oil, delta-decalactone, gamma-decalactone, capric acid, dill oil, 3, 4-dimethyl-1, 2-cyclopentanedione, 4, 5-dimethyl-3-hydroxy-2, 5-dihydrofuran-2-one, 3, 7-dimethyl-6-octenoic acid, 2, 3-dimethylpyrazine, 2, 5-dimethylpyrazine, 2, 6-dimethylpyrazine, ethyl 2-methylbutyrate, ethyl acetate, ethyl butyrate, ethyl caproate, ethyl isovalerate, ethyl lactate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl caprylate, ethyl oleate, ethyl palmitate, ethyl phenylacetate, ethyl propionate, ethyl stearate, ethyl valerate, ethyl vanillin glucoside, ethyl vanillin, dill oil, 3, 4-dimethyl-1, 2-cyclopentanedione, ethyl butyrate, ethyl laurate, ethyl levulinate, ethyl maltol, ethyl caprylate, 2-ethyl-3, (5 or 6) -dimethylpyrazine, 5-ethyl-3-hydroxy-4-methyl-2 (5H) -furan, 2-ethyl-3-methylpyrazine, eucalyptol, Fenugreek absolute (Fenugreek absolute), caragana sinica oil, gentian root infusion (gentiian root infusion), geraniol, geranyl acetate, grape juice, guaiacol, guava extract, gamma-heptolactone, gamma-caprolactone, hexanoic acid, cis-3-hexen-1-ol, hexyl acetate, hexanol, hexyl phenylacetate, honey, 4-hydroxy-3-pentenoate lactone, 4-hydroxy-4- (3-hydroxy-1-butenyl) -3,5, 5-trimethyl-2-cyclohexen-1-one, 4- (p-hydroxyphenyl) -2-butanone, sodium 4-hydroxyundecanoate, Echinacea purpurea absolute (immurtelle absolute), beta-ionone, isoamyl acetate, isoamyl butyrate, isoamyl phenylacetate, isobutyl acetate, isobutyl phenylacetate, jasmine absolute (jasmine absolute), cola nut tincture, labdanum oil, terpeneless lemon oil, licorice extract, linalool, linalyl acetate, angelica root oil (ロベージ oil), maltol, maple syrup, menthol, menthone, L-menthyl acetate, p-methoxybenzaldehyde, methyl-2-pyrrolidone, methyl anthranilate, methyl phenylacetate, methyl salicylate, 4' -methylacetophenone, methylcyclopentenone, 3-methylvaleric acid, mimosa absolute (mimosa absolute), molasses, myristic acid, nerol, nervone, isovaleryl salicylate, isovaleryl benzoate, nerolidol, gamma-nonalactone, nutmeg oil, delta-octalactone, octanal, caprylic acid, neroli oil, orange oil, orris root oil, palmitic acid, omega-valerolactone, peppermint oil, petitgrain oil (petitgrain oil paraguay), phenethyl alcohol, phenylethyl phenylacetate, phenylacetic acid, piperonal, plum extract, propenyl ethylguaiacol, propyl acetate, 3-propylidene phthalide, dried plum juice, pyruvic acid, raisin extract, rose oil, rum, sage oil, sandalwood oil, spearmint oil, storax absolute (styrax absolute), calendula oil, tea distillate, alpha-terpineol, terpinyl acetate, 5,6,7, 8-tetrahydroquinoxaline, 1,5,5, 9-tetramethyl-13-oxoheterocycle (8.3.0.0(4.9)) tridecane, 2,3,5, 6-tetramethylpyrazine, Thyme oil, tomato extract, 2-tridecanone, triethyl citrate, 4- (2,6, 6-trimethyl-1, 3-cyclohexenyl) 2-buten-4-one, 2,6, 6-trimethyl-2-cyclohexene-1, 4-dione, 4- (2,6, 6-trimethyl-1, 3-cyclohexadienyl) 2-buten-4-one, 2,3, 5-trimethylpyrazine, γ -undecalactone, γ -valerolactone, vanillin, veratraldehyde, Violet leaf absolute (Violet), tobacco plant (tobacco leaf, tobacco stem, tobacco flower, tobacco root, and tobacco species), particularly preferably menthol. In addition, these volatile perfume ingredients may be used singly or two or more kinds may be used in combination.

The content of the aerosol-generating substrate in the tobacco filler 6 is not particularly limited, and is usually 5 to 50 mass%, preferably 10 to 20 mass%, from the viewpoint of sufficiently generating aerosol and imparting good taste. When the tobacco filler 6 contains a volatile flavor component, the content of the volatile flavor component in the tobacco filler is not particularly limited, and is usually 10000ppm or more, preferably 20000ppm or more, more preferably 25000ppm or more, and usually 50000ppm or less, preferably 40000ppm or less, more preferably 33000ppm or less, relative to the amount of the tobacco filler, from the viewpoint of imparting a good taste.

The method of filling the tobacco filler 6 into the wrapping material 7 is not particularly limited, and for example, the tobacco filler 6 may be wrapped with the wrapping material 7, or the tobacco filler 6 may be filled into the cylindrical wrapping material 7. When the tobacco has a rectangular shape and a longitudinal direction, the tobacco may be filled so that the longitudinal direction of the tobacco is in an unspecified direction in the wrapping material 7, or may be filled so that the tobacco is aligned in the axial direction of the tobacco-containing segment 1 or in a direction perpendicular to the axial direction. By heating the tobacco-containing segment 1, the tobacco components contained in the tobacco filler 6, the aerosol-generating substrate, and water are vaporized, and these are moved to the mouthpiece segment 2 by suction.

The cooling stage 3 is constituted by a cylindrical member 8. The cylindrical member 8 may be, for example, a paper tube obtained by processing thick paper into a cylindrical shape. The cylindrical member 8 and a mouthpiece paper 15 described later may be provided with a through hole 9 penetrating both. Through the perforations 9, air is introduced into the cooling section 3 from the outside during the suction. As a result, the aerosol-vaporized component generated by heating the tobacco-containing segment 1 comes into contact with the outside air, and the temperature thereof is lowered, so that the aerosol is liquefied and formed. The diameter (diameter length) of the through hole 9 is not particularly limited, and may be, for example, 0.5 to 1.5 mm. The number of the perforations 9 is not particularly limited, and may be one, or two or more. For example, a plurality of perforations 9 may be provided on the outer circumference of the cooling section 3. The amount of the external gas introduced from the perforation 9 is preferably 85 vol% or less, and more preferably 80 vol% or less, based on the volume of the entire gas sucked by the user. The lower limit is preferably 55% by volume or more, and more preferably 60% by volume or more. By setting the ratio of the amount of external gas in this range, the reduction in the smell of fragrance due to dilution with external gas can be sufficiently suppressed.

The central hole section is formed by a filling layer with a hollow part and inner filter rod forming paper covering the filling layer. For example, the central hole section 4' is composed of a first filling layer 10 having a hollow portion and a first inner filter rod-forming paper 11 covering the first filling layer 10. The central bore section 4' also has the function of increasing the strength of the mouthpiece section 2. The first filling layer 10 is filled with, for example, cellulose acetate fibers at a high density, and a plasticizer containing triacetin is added in an amount of 6 to 20 mass% based on the mass of the cellulose acetate fibers, and the mixture is cured to form a hollow rod. Since the packing density of the fibers of the first filler layer 10 is high, air or aerosol flows only in the hollow portion during suction, and hardly flows in the first filler layer 10. The first filling layer 10 inside the central hole section 4' is a fiber filling layer, and therefore, the feeling from the outside in use is less uncomfortable to the user. The central bore segment 4' is preferably further wrapped with outer plug wrap 14. As shown in fig. 2, the outer plug wrap 14 may wrap around both the central hole segment 4' and the filter segment 5.

The filter segment of the present invention is not particularly limited in its structure, and includes, for example, a second filler layer 12 and a second inner plug wrap 13 covering the second filler layer 12, as in the filter segment 5 of fig. 2. In the filter segment 5, a second filling layer 12 is present to the mouthpieceThe end portion, and thus, the end portion has the same appearance as a conventional burning smoking article. Preferably, at least one of the inner plug wrap 13 or the outer plug wrap 14 has a weight per unit area of 40g/m²The above paper having a thickness of 100 μm or more. Such paper has a relatively large weight per unit area and is therefore excellent in heat insulation, and the mouth lip of a smoker feels a temperature more suitable for smoking. From this viewpoint, it is preferable that both the inner plug wrap and the outer plug wrap be formed of the paper. The weight per unit area is more preferably 60g/m²The upper limit is not limited, but is preferably 150g/m²Hereinafter, more preferably 130g/m²The following. The thickness is more preferably 110 μm or more, and the upper limit thereof is not limited, but is preferably 150 μm or less, and more preferably 130 μm or less. When the weight per unit area and the thickness are in such ranges, the production of the non-combustion heating smoking article is also facilitated. In order to further improve the insulation efficiency, it is preferred that one or both of the inner plug wrap 11 or the outer plug wrap 14 constituting the central bore section 4 also be composed of the above-mentioned paper. The central bore section 4 and the filter section 5 may be joined together by an outer plug wrap 14.

The circumference of the filter segment 5 is not particularly limited, but is preferably 16 to 25mm, more preferably 20 to 24mm, and still more preferably 21 to 23 mm. The length of the filter segment 5 in the axial direction (horizontal direction in fig. 2) is not particularly limited, but is preferably 3 to 15mm, and more preferably 5 to 10 mm. The shape of the cross section of the filter segment 5 is not particularly limited, and may be, for example, circular, elliptical, polygonal, or the like.

As described above, the central bore segment 4' and the filter segment 5 may be joined together by an outer plug wrap 14. The tobacco-containing segment 1 and the cooling segment 3, as well as the joined central bore segment 4 and filter segment 5, are joined together by a tipping paper 15. These can be connected by, for example, applying a paste such as a vinyl acetate paste on the inner surface of the mouthpiece lining paper 15, and wrapping the three pieces and winding them.

The length of the non-combustion heating smoking article of the present invention in the axial direction, i.e., in the horizontal direction in fig. 2, is not particularly limited, but is preferably 40mm to 90mm, more preferably 50mm to 75mm, and still more preferablyIs 50 mm-60 mm. The circumference of the non-combustion heating type smoking article is preferably 16mm to 25mm, more preferably 20mm to 24mm, and still more preferably 21mm to 23 mm. Examples thereof include: the tobacco-containing segment 1 has a length of 20mm, the cooling segment 3 has a length of 20mm, the central hole segment 4 has a length of 8mm, and the filter segment 5 has a length of 7 mm. The length of the filter section 1 can be selected within the range of 4-10 mm, and the ventilation resistance of each section of the filter section 1 at the moment can be selected to be 15-60 mmH₂O/seg. These segment lengths may be appropriately changed according to manufacturing suitability, required quality, and the like. Further, even if only the filter segment is disposed downstream of the cooling segment without using the central hole segment, it can function as a non-combustion heating smoking article.

[ non-combustion heating smoking System ]

The non-combustion heating smoking system of the present invention comprises: the non-combustion heated smoking article of the present invention, and a heating device for heating a tobacco-containing segment. The above-described non-combustion heating smoking system is provided with the non-combustion heating smoking article of the present invention, and therefore, the aerosol vaporization component can be sufficiently cooled without impairing the flavor of the aerosol. The non-combustion heating smoking system of the present invention is not particularly limited as long as it includes the non-combustion heating smoking article of the present invention and the heating device, and may have other configurations.

Fig. 3 shows an example of a non-combustion heating and smoking system according to the present invention. The non-combustion heating smoking system shown in fig. 3 includes: the non-combustion heating smoking article 20 of the present invention and the heating device 21 for heating the tobacco-containing segment of the non-combustion heating smoking article 20 from the outside. Fig. 3(a) shows a state before the non-combustion heated smoking article 20 is inserted into the heating device 21, and fig. 3(b) shows a state in which the non-combustion heated smoking article 20 is inserted into the heating device 21 and heated. The heating device 21 shown in fig. 3 includes: a body 22, a heater 23, a metal tube 24, a battery unit 25, and a control unit 26. The main body 22 has a cylindrical recess 27, and the heater 23 and the metal pipe 24 are arranged on the inner side surface of the recess 27 at positions corresponding to the tobacco-containing segment of the non-combustion heating smoking article 20 inserted into the recess 27. The heater 23 may be a heater using a resistance, and the heater 23 is heated by supplying power from the battery unit 25 in response to an instruction from the control unit 26 that controls the temperature. The heat emitted from the heater 23 is transferred to the tobacco-containing segment of the non-combustion heated smoking article 20 through the metal tube 24 of high thermal conductivity. In fig. 3(b), although a gap is schematically illustrated, between the outer periphery of the non-combustion heated smoking article 20 and the inner periphery of the metal pipe 24, it is actually desirable that no gap is provided between the outer periphery of the non-combustion heated smoking article 20 and the inner periphery of the metal pipe 24 for the purpose of efficiently conducting heat. The heating device 21 may heat the tobacco-containing segment of the non-combustion heating smoking article 20 from the outside, or may heat the tobacco-containing segment from the inside.

The heating temperature by the heating device is not particularly limited, but is preferably 400 ℃ or lower, more preferably 150 ℃ or higher and 400 ℃ or lower, and further preferably 200 ℃ or higher and 350 ℃ or lower. The heating temperature refers to a temperature of a heater of the heating device.

Examples

[ examples 1 to 3]

A non-combustion heated smoking article having a total length of 55mm, which was formed by joining a tobacco-containing segment, a cooling segment, a center hole segment, and a filter segment in this order as shown in FIG. 2, was prepared. The dimensions of the individual segments are shown in table 1.

[ Table 1]

TABLE 1 dimensions of the sections

	Tobacco-containing segment	Cooling section	Central bore section	Filter segment
					Length (mm)	20	20	8	7
Outer diameter (mm)	7.0	6.9	6.9	6.9
					Inner diameter (mm)	-	6.5	4.0	-

At the periphery of the cooling zone, 15 perforations were arranged in a row in a circle around the periphery. The perforations are arranged at equal intervals so that Vf becomes about 70 vol%. Vf is defined by the amount of external gas introduced from the perforations 9/the amount of gas pumped by the user as a whole. The distance from the joint surface of the cooling section and the central hole section to the through hole is set to be 2-4 mm.

The filter section of the non-burning heated smoking article is connected to the smoking machine by a tube. A thermocouple was inserted from the outer periphery of the tube, and the tip of the thermocouple was positioned 5mm from the mouth end and on the central axis of the non-combustion heated smoking article. Heating the tobacco containing segment of the non-combustible heated smoking article by a heater and smoking by the smoking machine. The heating by the heater was maintained at 230 ℃ for 50 seconds, at 200 ℃ for 130 seconds, and then at 170 ℃. The pumping is performed as follows: based on the CIR method (canadian forced smoking condition method), an average of 55ml/2 seconds per puff (one puff with 30 seconds interval, i.e., 2 seconds puff and 28 seconds standby) was set, and five puffs were performed in total. The maximum temperature was recorded from the temperature of each puff as the filter end temperature. The results are shown in Table 2.

[ Table 2]

TABLE 2 results

Filter segment and central hole segment packing material

In embodiments, smoking can be carried out at an appropriate sensory temperature without compromising the flavor of the smoke.

Claims

1. A non-combustion heating smoking article is provided with:

A cylindrical cooling section having a through hole on the outer periphery, and

a cylindrical member having a smaller inner diameter than the cooling stage,

wherein the content of the first and second substances,

the mouthpiece-direction end of the cooling segment is joined to the member,

the through hole is provided at a position 2 to 4mm from the joint surface.

2. The non-combustible heated smoking article of claim 1,

the member is a central bore section.

3. The non-combustible heated smoking article of claim 1 or 2, wherein,

a filter segment is further provided downstream of the component in the mouthpiece direction.

4. The non-combustible heated smoking article of any one of claims 1 to 3,

a plurality of the perforations are provided on the outer periphery of the cooling section.

5. The non-combustible heated smoking article of any one of claims 1 to 4,

the perforation is arranged at a position 17-19 mm from the cigarette holder end.

6. The non-combustible heated smoking article of any one of claims 2 to 5, wherein,

the filter segment is provided with: a filler, an inner filter rod forming paper on which the filler is wound, and an outer filter rod forming paper on which the filler is wound,

at least one of the inner filter rod forming paper or the outer filter rod forming paper has a weight per unit area of 40g/m²The above paper having a thickness of 100 μm or more.

7. A non-combustion heating smoking system is provided with:

a non-combustible heated smoking article as claimed in any one of claims 1 to 6, and

a heating device for heating the tobacco-containing segment.

8. The non-combustion heated smoking system of claim 7,

the heating temperature of the heating device is 150-400 ℃.