WO2025004317A1 - Non-combustion type flavor inhalation article - Google Patents

Abstract

Provided is a non-combustion type flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece includes an adsorption segment containing an adsorbent, the adsorption segment has an airflow resistance of 5 mmH2O or less, and the amount of the adsorbent is 4-10 (mg/longitudinal length mm).

Description

Non-combustion flavor inhalation products

The present invention relates to a non-combustion type flavor inhalation article.

It is known to use activated carbon in flavor inhalation articles. For example, Patent Document 1 discloses an aerosol generating article that includes 0.005 milligrams to 0.1 milligrams of activated carbon disposed between an aerosol-forming substrate and a mouthpiece filter, the activated carbon being bonded to an elongated carbon support element in the form of a thread. Patent Document 2 discloses a cigarette using a charcoal filter. Meanwhile, in recent years, non-combustion type flavor inhalation articles have been actively developed. Compared with conventional combustion type smoking articles (cigarettes), non-combustion type flavor inhalation articles generate less flavor components, so the filter needs to have low filtration in order to deliver the flavor to the user. It is generally known that low filtration can be achieved by lowering the airflow resistance of the filter.

Special table 2018-530318 publication International Publication No. 2011/118042

Smoke delivered from a non-combustion type flavor inhalation article contains a particle phase (aerosol) and a vapor phase (gas). Since the particle phase contains flavor components and active components, it is preferable to selectively deliver it. In general, lowering the airflow resistance of the filter is effective in increasing delivery efficiency. However, simply lowering the airflow resistance does not sufficiently remove the undesirable vapor phase. In view of these circumstances, the objective of the present invention is to provide a non-combustion type flavor inhalation article that can selectively deliver the particle phase (aerosol) to the user.

The inventors have found that the vapor phase can be efficiently removed by increasing the adsorption capacity of the filter while decreasing the airflow resistance to increase the delivery efficiency of the particulate phase.
Aspect 1
A non-combustion type flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece,
The mouthpiece comprises an adsorbent-containing adsorbent segment;
The adsorption segment has an air flow resistance of 5 mmH ₂ O or less,
The amount of adsorbent is 4 to 10 (mg/mm of longitudinal length of the adsorption segment);
A non-combustion type flavor inhalation article.
Aspect 2
The non-burning flavor inhalation article according to claim 1, wherein the adsorbent segment comprises an adsorbent-containing sheet.
Aspect 3
The non-burning flavor inhalation article according to aspect 1 or 2, wherein the adsorbent is activated carbon.
Aspect 4
The non-burning flavor inhalation article according to aspect 2 or 3, wherein the sheet contains pulp.
Aspect 5
When the short side direction of the non-combustion type flavor inhalation article is defined as the width,
The non-burning flavor inhalation article according to any one of Aspects 1 to 4, wherein the adsorption segment is filled with the sheet having a width of 150 mm or less.
Aspect 6
Aspect 6. The non-burning flavor inhalation article according to any one of aspects 1 to 5, wherein the adsorption segment comprises a wrapper having a basis weight of 50 gsm (g/m ² ) or more.
Aspect 7
A non-combustion type flavor inhalation article according to any one of Aspects 1 to 6, wherein the mouthpiece further comprises a mouth-side segment disposed downstream of the adsorption segment.
Aspect 8
Aspect 8. The non-burning flavor inhalation article according to any one of aspects 1 to 7, wherein the adsorption segment has a cross-sectional porosity of greater than 30%.

The present invention provides a non-combustion flavor inhalation product that can selectively deliver a particulate phase (aerosol) to a user.

FIG. 1 is a diagram showing an embodiment of a non-combustion heating type flavor inhalation article. Diagram showing the outline of the adsorption segment FIG. 1 shows an embodiment in which the mouthpiece is composed of three segments. FIG. 1 shows an embodiment of a non-combustion heating type flavor inhalation system. A diagram showing a relative comparison of nicotine and glycerin delivery with Comparative Example 2 as the standard. A diagram showing a relative comparison of the delivery of acetaldehyde, acetone, and acrolein with Comparative Example 1 as the standard.

In this disclosure, "X-Y" includes the end values X and Y. Unless otherwise specified, weights are dry weights. In addition, in non-combustion type flavor inhalation products, downstream refers to the direction toward the mouth end.

1. Non-burning type flavor inhalation article Non-burning type flavor inhalation articles are broadly classified into non-burning heating type flavor inhalation articles and non-burning non-heating type flavor inhalation articles. Non-burning heating type flavor inhalation articles include inhalation articles that generate flavor by directly heating a flavor source and inhalation articles that generate flavor by indirectly heating a flavor source. Indirect heating includes a method of indirectly heating a flavor source by introducing an aerosol generated upstream into the flavor source. Non-burning non-heating type flavor inhalation articles generate flavor by atomizing a liquid flavor source by vibration or the like. The non-burning type flavor inhalation article according to this embodiment is preferably a non-burning heating type flavor inhalation article. The non-burning heating type flavor inhalation article includes a tobacco member, a cooling member, and a mouthpiece. It is preferable that the cooling member is present downstream of the tobacco member, and the mouthpiece is present downstream of the cooling member. FIG. 1 shows one embodiment of a non-burning heating type flavor inhalation article. In the figure, 10 is a non-combustion heating type flavor inhalation article, 1 is a tobacco member, 3 is a cooling member, 5 is a mouthpiece, 51 is a mouth-side segment, 52 is an adsorption segment, and V is ventilation. The size of the non-combustion heating type flavor inhalation article is not limited. For example, the length may be about 50 to 80 mm, and the cross-sectional diameter may be about 5.5 to 7.5 mm. Hereinafter, this embodiment will be described using the non-combustion heating type flavor inhalation article as an example.

(1) Mouthpiece The mouthpiece is a member that constitutes the mouth end. In one embodiment, the mouthpiece 5 includes an adsorption segment 52 and a mouth-side segment 51 downstream of the adsorption segment 52.

1) Adsorption segment [adsorbent]
The adsorption segment 52 contains an adsorbent. The adsorbent is an agent capable of adsorbing components generated from the non-combustion heating type flavor inhalation article. Examples of the adsorbent include activated carbon, zeolite, activated alumina, and silica gel. Among them, from the viewpoint of availability, it is preferable that the adsorbent contains activated carbon, and it is more preferable that the adsorbent is made of activated carbon. The surface area of the activated carbon is preferably 500 to 3000 m ² /g, and more preferably 700 to 2500 m ² /g. The surface area of the adsorbent is the BET specific surface area, and is measured by a nitrogen adsorption method.

[Air flow resistance]
The adsorption segment 52 has an airflow resistance of 5 mmH ₂ O or less. When the adsorption segment 52 has this airflow resistance, satisfactory delivery is achieved. From this viewpoint, the upper limit of the airflow resistance is preferably 3 mmH ₂ O or less. The lower limit of the airflow resistance is not limited, but is preferably 1 mmH ₂ O or more. The airflow resistance is measured using a filter quality measuring device (manufactured by SODIM, product name: SODIMAX). Specifically, the airflow resistance is measured as the differential pressure (mmH 2 O) between both end faces of the sample when the sample is covered with an air-impermeable material (rubber, etc.) to prevent air from flowing in from the sides, and sucked from one end at a flow rate of 17.5 cm ³ _/ sec.

[Amount of adsorbent]
If the content of the adsorbent in the adsorption segment 52 is too high, manufacturing becomes difficult. On the other hand, if the content of the adsorbent is too low, removal of vapor phase components becomes insufficient. From this viewpoint, the content of the adsorbent is expressed as the amount per unit length of the adsorption segment in the longitudinal direction, and the value is 4 to 10 (mg/mm). The amount is more preferably 4.5 to 6.5 (mg/mm), and further preferably 5 to 6 (mg/mm).
[size]
The length of the suction segment 52 is not limited, but is preferably 7 to 20 mm, and more preferably 10 to 15 mm. The diameter of the suction segment 52 is also not limited, but is preferably 5.5 to 7.5 mm.

[Adsorbent-containing sheet]
The adsorbent segment 52 preferably comprises an adsorbent-containing sheet. The adsorbent-containing sheet is a sheet in which an adsorbent is supported in a sheet substrate.

The adsorbent-containing sheet preferably contains pulp as a matrix. Pulp is an aggregate of cellulose fibers extracted by mechanically or chemically processing plant raw materials. The plant raw material is preferably wood.

The adsorbent-containing sheet preferably contains synthetic fibers in addition to the pulp. Examples of synthetic fibers include polyester fibers. The polyester constituting the polyester fibers contains a diol residue and a diacid residue. The diol residue preferably contains an alkylene glycol residue having a carbon chain of 2 to 4, and more preferably contains an ethylene glycol residue. The diacid residue preferably contains a terephthalic acid, isophthalic acid, or phthalic acid residue, and more preferably contains a terephthalic acid residue. Such a polyester can be represented by the following formula. In the formula, n indicates the number of repetitions, and m indicates an integer of 2 to 4. In particular, polyesters containing an alkylene glycol residue having a carbon chain of 2 to 4, or an isophthalic acid or phthalic acid residue do not have an excessively high degree of crystallinity, and therefore improve the adhesion between the polyester fibers and the adsorbent particles.

The adsorbent-containing sheet preferably contains a binder. The binder increases the adhesion between the fibers and between the fibers and the adsorbent. Known binders can be used, examples of which include polyvinyl alcohol and vinyl acetate.

The adsorbent-containing sheet preferably has the following characteristics, and the blending amounts of the above-mentioned components may be appropriately adjusted so as to achieve the characteristics.
Tensile strength (ISO 1924-2): 5 to 30 N/15 mm, more preferably 10 to 20 N/15 mm
Basis weight (ISO 536): 50 to 100 g/m ² , more preferably 70 to 90 g/m ²
Thickness: 100 to 300 μm, more preferably 150 to 250 μm
Iodine adsorption performance (JIS K 1474): 300 to 2000 mg/g, more preferably 500 to 1500 mg/g
Air permeability: the lower limit is 300 CU or more, preferably 500 CU or more, more preferably 1000 CU or more, and the upper limit is 30,000 CU or less, preferably 10,000 CU or less, more preferably 2000 CU or less.

The air permeability (unit: Coresta unit (CU)) is the air flow rate (cm ³ ) per minute per 1 cm ² under a differential pressure of 1 kPa. The air permeability can be measured using an air permeability meter PPM1000M manufactured by Cerulean Corporation.

The effective surface area of the adsorbent per ^m2 of the adsorbent-containing sheet is preferably 5,000 to 70,000 ^m2 / ^m2 . The effective surface area is the total area of the adsorbent exposed on the sheet surface. This numerical range is based on the following.

In one embodiment, the area of the adsorbent buried in the sheet is considered to be, on average, 30% to 50% of the surface area of a single adsorbent. In other words, the area of the adsorbent exposed is, on average, 50% to 70%. If the surface area of the adsorbent is 1000 m ² /g and the content of the adsorbent in the sheet is 10 g/m ² , the effective surface area when, on average, 50% of the area is exposed is calculated as follows:
10g/m ² x 1000m ² /g x 50% = 5000m ² /m ²
Assuming that the surface area of the adsorbent is 2000 m ² /g and the content is 50 g/m ² , the effective surface area when 70% of the area is exposed on average is calculated as follows.
50g/m ² x 2000m ² /g x 70% = 70,000m ² /m ²

In one embodiment, the adsorbent-containing sheet is not surface-treated. In another embodiment, the adsorbent-containing sheet is surface-treated. Examples of surface treatments include known treatments, but crimping is preferred. Crimping refers to a process for forming wrinkles in a sheet. As described below, crimping makes it easier to form the adsorbent-containing sheet into a rod shape. On the other hand, if the crimp depth is excessively high, the air resistance increases. From this perspective, the crimp depth is preferably 0.2 mm or less, more preferably 0.1 mm or less, and even more preferably 0.03 mm or less. There is no lower limit, but it is preferably 0.01 mm or more.

In one embodiment, the adsorption segment 52 is filled with an adsorbent-containing sheet. The adsorbent-containing sheet preferably has a width of 150 mm or less. The width is a direction parallel to the short side direction of the non-combustion heating type flavor inhalation article 10. FIG. 2 shows an overview of the adsorption segment 52. In the figure, 520 is an adsorbent-containing sheet, 522 is a wrapper, and W is a width. The adsorbent-containing sheet 520 is folded and filled in the wrapper 522. The number of adsorbent-containing sheets 520 is adjusted as appropriate, but is preferably 1 to 2 sheets. When the adsorbent-containing sheet has this width, it becomes easier to achieve the above-mentioned air resistance. From this viewpoint, the upper limit value of the width W is preferably 130 mm or less, more preferably 110 mm or less. The lower limit value is preferably 70 mm or more, more preferably 80 mm or more, and even more preferably 90 mm or more. The length of the adsorbent-containing sheet 520 is preferably the same as the length of the adsorption segment 52. The thickness of the adsorbent-containing sheet 520 is not limited, but is preferably 150 to 250 μm.

Known materials can be used for the wrapper 522. From the viewpoint of availability and the like, it is preferable that the wrapper is made of paper. In particular, when paper with a large basis weight is used, the hardness of the suction segment can be maintained. From this viewpoint, the basis weight of the wrapper 522 is preferably 50 gsm (g/m ² ) or more, more preferably 60 gsm (g/m ² ) or more. The upper limit is not limited, but is preferably 80 gsm or less.

[Cross-sectional porosity]
The cross-sectional porosity Z of the adsorption segment 52 is preferably more than 30%, more preferably 32% or more, and even more preferably 35% or more. When the cross-sectional porosity Z is in this range, low airflow resistance can be achieved. However, if the cross-sectional porosity Z is excessively high, the adsorption capacity becomes insufficient. Therefore, the upper limit is preferably 70% or less, more preferably 55% or less, and even more preferably 45% or less. The cross-sectional porosity Z is defined as the total area of the voids in the cross section of the adsorption segment 52 / the cross-sectional area of the adsorption segment 52 (excluding the area of the wrapper). The cross-sectional porosity Z is obtained by observing the cross section of the adsorption segment 52 and performing image analysis. Preferably, 1 to 3 cross sections are observed, and the Z obtained for each cross section is averaged to obtain the cross-sectional porosity of the segment.

[Method of manufacturing the adsorption segment]
As mentioned above, the adsorbent segment 52 is preferably manufactured by a method comprising step 1 of providing an adsorbent-containing sheet, and step 2 of filling a cylindrical wrapper with the sheet.

Step 1 can be carried out by a known method using the aforementioned components. For example, a paper sheet can be produced by preparing a slurry by mixing the aforementioned components and then papermaking the slurry. A cast sheet can also be produced by casting the slurry onto a substrate.

Step 2 can also be performed by a known method. For example, it can be performed by filling a folded adsorbent-containing sheet or a cut adsorbent-containing sheet into a cylindrical wrapper. Alternatively, the adsorbent-containing sheet can be folded to form a cylindrical shape and wrapped in a wrapper to produce an adsorption segment. Before step 2, a step of subjecting the adsorbent-containing sheet to the above-mentioned surface treatment can be provided.

2) Mouth Side Segment The mouth side segment 51 may be a filter typically used in the field, and may be a solid acetate filter or a paper filter. In another embodiment, the mouth side segment 51 may be omitted. The length of the mouth side segment 51 is preferably 5 to 10 mm. The diameter of the mouth side segment 51 may be the same as that of the adsorption segment 52.

3) Upstream Segment FIG. 3 shows an embodiment in which the mouthpiece 5 is composed of three segments. In the figure, 53 is an upstream segment. The upstream segment 53 may be composed of any material, but is preferably a center hole filter. When the upstream segment 53 is a center hole filter, the upstream segment 53 and the mouth side segment 51, which have high rigidity, can be arranged on both sides of the adsorption segment 52, which has a relatively low rigidity, thereby improving the strength of the non-combustion heating type flavor inhalation article 10. In addition, the positions of the upstream segment 53 and the adsorption segment 52 can be interchanged, but the embodiment of FIG. 3 is preferable from the viewpoint of avoiding excessive adsorption. The length of the upstream segment 53 is preferably 5 to 10 mm. The diameter of the upstream segment 53 may be the same as that of the adsorption segment 52.

(2) Tobacco member A tobacco member is a substantially cylindrical member for generating flavor and aroma components contained in tobacco raw materials. A tobacco member includes a tobacco material and a cigarette paper (wrapper) that wraps around the tobacco material. The shape of the tobacco material filled into the cigarette paper is not limited, and examples of the shape include a sheet, the sheet cut into a width of 0.8 to 1.2 mm, or a shredded sheet cut into a width of 0.8 to 1.2 mm. The sheet may be gathered, folded, or spirally wound without being cut, and filled into the cigarette paper to form a tobacco member. Alternatively, the sheet may be cut into strips and filled into the cigarette paper concentrically or with the longitudinal direction of the strip parallel to the longitudinal direction of the tobacco member to form a tobacco member.

The packing density of the tobacco material is not particularly limited, but from the viewpoint of ensuring the properties of the non-combustion heating type flavor inhalation article and imparting a good smoking taste, it is usually 200 mg/ ^cm3 or more, and preferably 250 mg/cm3 or ^more . The upper limit is usually 800 mg/cm3 or ^less , and preferably 600 mg/cm3 or ^less . The length of the tobacco member is not limited, but is preferably 10 to 25 mm. The diameter is also not limited, but is preferably 6 to 8 mm.

The tobacco material may generate steam when heated. The heating temperature is not limited, but is about 30 to 400°C. To promote the generation of aerosol, an aerosol source such as glycerin, propylene glycol, 1,3-butanediol, or other polyol may be added to the tobacco material. The amount of the aerosol source added is preferably 5 to 50% by weight, more preferably 10 to 30% by weight, based on the dry weight of the tobacco material. In addition, known flavorings, etc. may be added to the tobacco material.

(2) Cooling Member The cooling member 3 is adjacent to the downstream side of the tobacco member 1. Downstream refers to the direction toward the mouth end. The cooling member 3 is a member for accelerating aerosolization by cooling flavor and aroma components and vapor generated in the tobacco member 1. The cooling member may be a hollow paper tube. The paper tube is preferably made of cardboard having higher rigidity than cigarette paper or tipping paper. The paper tube may be provided with ventilation V (openings). A plurality of ventilations are preferably provided along the circumference of the paper tube. The cooling member may be filled with a gathered sheet to enhance heat exchange efficiency. The dimensions of the cooling member are not limited, but the length is preferably 10 to 25 mm, and the diameter is preferably 5.5 to 7.5 mm. The flavor generated from the tobacco member 1 is sufficiently cooled by the cooling member 3, so that a particle phase (aerosol) and a vapor phase are generated. For this reason, the adsorbent segment 51 can selectively remove the components in the vapor phase. If the flavor generated from the tobacco member 1 is introduced into the adsorbent segment 52 without passing through the cooling member 3, even components that are not desired to be removed may be removed.

2. Non-combustion heating type flavor inhalation system The combination of the non-combustion heating type flavor inhalation article and the heating unit is also called a non-combustion heating type flavor inhalation system. Figure 4 shows one embodiment of the system. In the figure, 100 is a non-combustion heating type flavor inhalation system, 10 is a non-combustion heating type flavor inhalation article, and 30 is a heating unit equipped with a heater. The heating unit is equipped with a heater, a housing, a power source, etc.

The heater preferably electrically heats the tobacco member 1. The heater may be either a type that heats the tobacco member 1 from the outer periphery, or a type that is inserted into the tobacco member 1 and heats it from the inside.

The non-combustion heating flavor inhalation system may also be an induction heating (IH) type system. In this embodiment, the heating unit 30 is composed of an induction coil. The heating unit is usually disposed on the outer periphery of the tobacco member 1. The tobacco member 1 may include a susceptor that is heated by a magnetic field generated by passing current through the induction coil.

The following describes an embodiment.
Aspect 1
A non-combustion type flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece,
The mouthpiece comprises an adsorbent-containing adsorbent segment;
The adsorption segment has an air flow resistance of 5 mmH ₂ O or less,
The amount of adsorbent is 4 to 10 (mg/mm of longitudinal length of the adsorption segment);
A non-combustion type flavor inhalation article.
Aspect 2
The non-burning flavor inhalation article according to claim 1, wherein the adsorbent segment comprises an adsorbent-containing sheet.
Aspect 3
The non-burning flavor inhalation article according to aspect 1 or 2, wherein the adsorbent is activated carbon.
Aspect 4
The non-burning flavor inhalation article according to aspect 2 or 3, wherein the sheet contains pulp.
Aspect 5
When the short side direction of the non-combustion type flavor inhalation article is defined as the width,
The non-burning flavor inhalation article according to any one of Aspects 1 to 4, wherein the adsorption segment is filled with the sheet having a width of 150 mm or less.
Aspect 6
Aspect 6. The non-burning flavor inhalation article according to any one of aspects 1 to 5, wherein the adsorption segment comprises a wrapper having a basis weight of 50 gsm (g/m ² ) or more.
Aspect 7
A non-combustion type flavor inhalation article according to any one of Aspects 1 to 6, wherein the mouthpiece further comprises a mouth-side segment disposed downstream of the adsorption segment.
Aspect 8
Aspect 8. The non-burning flavor inhalation article according to any one of aspects 1 to 7, wherein the adsorption segment has a cross-sectional porosity of greater than 30%.

[Examples and Comparative Examples]
A non-combustion heating type flavor inhalation article shown in Fig. 1 was prepared. However, the structure of the mouthpiece was as shown in Table 1. For example, the mouthpiece of Comparative Example 2 had a structure of CH/CF/AF toward the downstream, and the mouthpiece of Example 1 had a structure of CS/AF toward the downstream. The diameter of the mouthpiece was 7 mm.

CH: Center hole filter CF: Charcoal filter CS: Activated carbon-containing sheet (activated carbon basis weight 54 g/m ² )
HCS: Activated carbon-containing sheet (activated carbon basis weight 58 g/m ² )
AF: acetate filter Sheet width: width of activated carbon-containing sheet Airflow resistance: airflow resistance of segment containing activated carbon

The tobacco member side end of the non-combustion heating type flavor inhalation article was inserted into the heating device shown in FIG. 4. The heater temperature was set to 295°C, and the tobacco member was heated by the heater. A Cambridge filter (CM-133, manufactured by Borgwaldt KC Inc.) and an impinger containing a DNPH (2,4-dinitrophenylhydrazine) solution were placed on the mouth end side of the article, and the article was subjected to a smoking test using a smoking machine. Specifically, the sample was automatically smoked using an automatic smoking machine (LM-1, manufactured by Borgwaldt KC Inc.) under the following conditions: smoke volume 27.5 ml/sec, smoking time 2 sec/puff, smoking frequency 2 puffs/min, 10 puffs.

Analysis of nicotine and glycerin was performed as follows. After the smoking test, the Cambridge filter was shaken in 10 mL of methanol (special grade reagent, manufactured by Wako Pure Chemical Industries, Ltd.) to obtain an analytical sample. 1 μL of the obtained analytical sample was collected in a microsyringe and analyzed by gas chromatography mass spectrometry (GC-MSD, manufactured by Agilent, GC: 7890A, MS: 5975C).

Among the carbonyl components, acetaldehyde and acrolein were analyzed by the following method. After the smoking test, the Cambridge filter was immersed in the impinger collection liquid and shaken, and then the solids were filtered using a membrane filter. Furthermore, a specified amount of the filtrate was added to the Trizma base solution and shaken to stop the derivatization reaction. The solution was again filtered through the membrane filter, and then subjected to HPLC-DAD to analyze the carbonyl components. The method for analyzing the carbonyl components was disclosed in WO2004/026054 and CORESTA Recommended Method No. 96 - Determination of Formaldehyde and Acetaldehyde in E-Vapour Product Aerosol February 2021.

The results are shown in Figures 5 and 6. Figure 5 is a diagram comparing the delivery of nicotine and glycerin relative to Comparative Example 2. A significant decrease in the delivery of nicotine and glycerin was observed in Comparative Example 3, but an increase was observed in the Examples. For example, a 10% increase in the delivery of glycerin was observed in Example 1 compared to Comparative Example 2. Figure 6 is a diagram comparing the delivery of acetaldehyde, acetone, and acrolein relative to Comparative Example 1. A significant decrease in the delivery of acetaldehyde, acetone, and acrolein was observed in the Examples and Comparative Example 3. From the above, it is clear that the non-combustion heating type flavor inhalation article of the Examples selectively delivers the particle phase.

10 Non-combustion heating type flavor inhalation article 1 Tobacco member 3 Cooling member 5 Mouthpiece 51 Mouth-side segment 52 Adsorption segment 53 Upstream segment V Ventilation
100 Non-combustion heating type flavor inhalation system 30 Heating unit equipped with a heater
520 Adsorbent-containing sheet 522 Wrapper

Claims (8)

A non-combustion type flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece,
The mouthpiece comprises an adsorbent-containing adsorbent segment;
The adsorption segment has an air flow resistance of 5 mmH ₂ O or less,
The amount of adsorbent is 4 to 10 (mg/mm of longitudinal length of the adsorption segment);
A non-combustion type flavor inhalation article. The non-combustion flavor inhalation article according to claim 1, wherein the adsorption segment comprises an adsorbent-containing sheet. The non-combustion flavor inhalation article according to claim 1 or 2, wherein the adsorbent is activated carbon. The non-burning flavor inhalation article according to claim 2 or 3, wherein the sheet contains pulp. When the short side direction of the non-combustion type flavor inhalation article is defined as the width,
5. The non-burning flavor inhalation article according to claim 1, wherein the adsorption segment is filled with the sheet having a width of 150 mm or less. The non-burning flavor inhalation article according to any one of claims 1 to 5, wherein the adsorption segment comprises a wrapper having a basis weight of 50 gsm (g/m ² ) or more. The non-combustion flavor inhalation article according to any one of claims 1 to 6, wherein the mouthpiece further comprises a mouth-side segment disposed downstream of the adsorption segment. The non-burning flavor inhalation article according to any one of claims 1 to 7, wherein the adsorption segment has a cross-sectional porosity of greater than 30%.