Non-combustion type flavor inhalation article

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-combustible flavor inhalation products

[0001] The present invention relates to a non-combustion type flavor inhalation article.

[0002] The use of activated carbon in flavor inhalation articles is known. For example, Patent Document 1 discloses an aerosol-generating article comprising 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 also discloses a cigarette using a charcoal filter. Meanwhile, in recent years, the development of non-combustion flavor inhalation articles has been active. Compared to conventional combustion smoking articles (cigarettes), non-combustion flavor inhalation articles generate fewer flavor components, so the filter must have low filtration in order to deliver the flavor to the user. It is generally known that low filtration can be achieved by reducing the airflow resistance of the filter.

[0003] Patent Publication No. 2018-530318 International Publication No. 2011 / 118042

[0004] Smoke delivered from a non-combustion flavor inhalation article contains a particle phase (aerosol) and a vapor phase (gas). The particle phase contains flavor components and active ingredients, so it is preferable to selectively deliver it. Generally, reducing the airflow resistance of the filter is effective in improving delivery efficiency. However, simply reducing the airflow resistance does not sufficiently remove the undesirable vapor phase. In view of these circumstances, an object of the present invention is to provide a non-combustion flavor inhalation article that can selectively deliver the particle phase (aerosol) to a user.

[0005] The inventors have found that the vapor phase can be efficiently removed by increasing the adsorption capacity of the filter while reducing the airflow resistance to increase the delivery efficiency of the particulate phase. That is, the above-mentioned problem is solved by the following invention. Aspect 1 A non-combustion flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece comprises an adsorption segment containing an adsorbent, and the adsorption segment has a thickness of 5 mmH ２A non-burning flavor inhalation article having an airflow resistance of 0 or less, and an amount of adsorbent of 4 to 10 (mg / mm of longitudinal length of adsorption segment). Aspect 2 The non-burning flavor inhalation article according to Aspect 1, wherein the adsorption 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 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, when the width is taken as the width in the short side direction of the non-burning flavor inhalation article. Aspect 6 The adsorption segment has a basis weight of 50 gsm (g / m ２ Aspect 7. The non-burning flavor inhalation article of any one of Aspects 1 to 6, wherein the mouthpiece further comprises a mouth-side segment disposed downstream of the adsorption segment. Aspect 8. The non-burning flavor inhalation article of any one of Aspects 1 to 7, wherein the adsorption segment has a cross-sectional porosity of greater than 30%.

[0006] The present invention provides a non-combustion flavor inhalation article that can selectively deliver a particulate phase (aerosol) to a user.

[0007] FIG. 1 shows an embodiment of a non-combustion heating type flavor inhalation article. FIG. 2 shows an outline of an adsorption segment. FIG. 3 shows an embodiment in which a mouthpiece is composed of three segments. FIG. 4 shows an embodiment of a non-combustion heating type flavor inhalation system. FIG. 5 shows a relative comparison of the delivery of nicotine and glycerin with Comparative Example 2 as a reference. FIG. 6 shows a relative comparison of the delivery of acetaldehyde, acetone, and acrolein with Comparative Example 1 as a reference.

[0008] In this disclosure, "X to Y" includes the end values ​​X and Y. Unless otherwise specified, weights are dry weights. In addition, in non-combustion-type flavor inhalation articles, downstream refers to the direction toward the mouth end.

[0009] 1. Non-Combustion Flavor Inhalation Article Non-combustion flavor inhalation articles are broadly divided into non-combustion heating flavor inhalation articles and non-combustion non-heating flavor inhalation articles. Non-combustion heating 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 the flavor source by introducing an aerosol generated upstream into the flavor source. Non-combustion non-heating flavor inhalation articles generate flavor by atomizing a liquid flavor source by vibration or the like. The non-combustion non-heating flavor inhalation article according to this embodiment is preferably a non-combustion heating flavor inhalation article. The non-combustion heating flavor inhalation article includes a tobacco member, a cooling member, and a mouthpiece. It is preferable that the cooling member is located downstream of the tobacco member, and the mouthpiece is located downstream of the cooling member. FIG. 1 shows one embodiment of a non-combustion heating flavor inhalation article. In the figure, reference numeral 10 denotes a non-combustion heating type flavor inhalation article, 1 denotes a tobacco member, 3 denotes a cooling member, 5 denotes a mouthpiece, 51 denotes a mouth-side segment, 52 denotes an adsorption segment, and V denotes ventilation. The size of the non-combustion heating type flavor inhalation article is not limited. For example, the length may be approximately 50 to 80 mm, and the cross-sectional diameter may be approximately 5.5 to 7.5 mm. Hereinafter, this embodiment will be described using a non-combustion heating type flavor inhalation article as an example.

[0010] (1) Mouthpiece The mouthpiece is a component that constitutes the mouth end. In one embodiment, the mouthpiece 5 includes an adsorption segment 52 and a mouth-side segment 51 downstream thereof.

[0011] 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 adsorbents include activated carbon, zeolite, activated alumina, and silica gel. Among these, from the viewpoint of availability, it is preferable that the adsorbent contains activated carbon, and more preferably consists of activated carbon. The surface area of ​​the activated carbon is preferably 500 to 3000 m ２ / g, more preferably 700 to 2500 m ２ The surface area of ​​the adsorbent is the BET specific surface area, which is measured by the nitrogen adsorption method.

[0012] [Airflow resistance] The suction segment 52 has a resistance of 5 mmH ２ When the suction segment 52 has this airflow resistance, satisfactory delivery can be achieved. From this point of view, the upper limit of the airflow resistance is preferably 3 mmH ２ The lower limit of the airflow resistance is not limited, but is preferably 1 mmH ２ The airflow resistance is measured using a filter quality measuring instrument (manufactured by SODIM, product name: SODIMAX). Specifically, the airflow resistance is measured by covering the sample with an air-impermeable material (rubber, etc.) to prevent air from entering from the sides, and measuring the airflow resistance by measuring the airflow resistance at a distance of 17.5 cm from one end of the sample. ３ The differential pressure (mmH) at both ends of the sample when sucked at a flow rate of 1 / sec ２ 0).

[0013] [Amount of Adsorbent] If the adsorbent content in the adsorption segment 52 is too high, manufacturing becomes difficult. On the other hand, if the adsorbent content is too low, removal of vapor phase components becomes insufficient. From this perspective, the adsorbent content 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). This amount is more preferably 4.5 to 6.5 (mg / mm), and even more preferably 5 to 6 (mg / mm). [Dimensions] The length of the adsorption segment 52 is not limited, but is preferably 7 to 20 mm, more preferably 10 to 15 mm. The diameter of the adsorption segment 52 is also not limited, but is preferably 5.5 to 7.5 mm.

[0014] [Adsorbent-Containing Sheet] The adsorption segment 52 preferably includes an adsorbent-containing sheet. The adsorbent-containing sheet is a sheet in which an adsorbent is carried in a sheet substrate.

[0015] The adsorbent-containing sheet preferably contains pulp as a matrix. Pulp is an aggregate of cellulose fibers extracted by mechanically or chemically treating plant materials. The plant material is preferably wood.

[0016] 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 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 polyesters can be represented by the following formula: In the formula, n represents the number of repeating units, and m represents 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, thereby improving the adhesion between the polyester fibers and the adsorbent particles.

[0017]

[0018] The adsorbent-containing sheet preferably contains a binder. The binder enhances adhesion between the fibers and between the fibers and the adsorbent. Known binders can be used, such as polyvinyl alcohol and vinyl acetate.

[0019] The adsorbent-containing sheet preferably has the following properties, and the amounts of the components may be appropriately adjusted to achieve these properties: 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: Lower limit: 300 CU or more, preferably 500 CU or more, more preferably 1000 CU or more Upper limit: 30,000 CU or less, preferably 10,000 CU or less, more preferably 2000 CU or less

[0020] The air permeability (unit: Coresta unit (CU)) is measured under a differential pressure of 1 kPa and 1 cm ２ Air flow rate (cm ) per minute ３ The air permeability can be measured using a Cerulea PPM1000M air permeability meter.

[0021] Adsorbent-containing sheet 1m ２ The effective surface area of ​​the adsorbent is preferably 5,000 to 70,000 m ２ / m ２ The effective surface area is the total area of ​​the adsorbent exposed on the sheet surface. This range is based on the following:

[0022] In one embodiment, the area of ​​the adsorbent buried within the sheet is considered to be, on average, 30% to 50% of the surface area of ​​a single adsorbent. That is, the exposed area of ​​the adsorbent is, on average, 50% to 70%. ２ / g, and the content of the adsorbent in the sheet is 10 g / m ２ If this is the case, the effective surface area when 50% of the surface area is exposed on average is calculated as follows: ２ x 1000m ２ / g×50%=5000m ２ / m ２ The surface area of ​​the adsorbent is 2000 m ２ / g, the content is 50g / m ２ If this is the case, the effective surface area when 70% of the surface area is exposed on average is calculated as follows: ２ x 2000m ２ / g×70%=70,000m ２ / m ２

[0023] 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 of 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 airflow 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. The lower limit is not limited, but is preferably 0.01 mm or more.

[0024] 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 the direction parallel to the short-side direction of the non-combustion heating flavor inhalation article 10. FIG. 2 shows an overview of the adsorption segment 52. In the figure, 520 denotes the adsorbent-containing sheet, 522 denotes the wrapper, and W denotes the width. The adsorbent-containing sheet 520 is folded and filled into the wrapper 522. The number of adsorbent-containing sheets 520 can be adjusted as appropriate, but is preferably 1 to 2 sheets. When the adsorbent-containing sheet has this width, the above-mentioned airflow resistance can be easily achieved. From this perspective, the upper limit of the width W is preferably 130 mm or less, more preferably 110 mm or less. The lower limit 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.

[0025] Known materials can be used for the wrapper 522. From the viewpoint of availability and the like, it is preferable that the wrapper be made of paper. In particular, if 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 The upper limit is not limited, but is preferably 80 gsm or less.

[0026] [Cross-sectional porosity] The cross-sectional porosity Z of the adsorption segment 52 is preferably greater 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 ​​voids in the cross section of the adsorption segment 52 divided by the cross-sectional area of ​​the adsorption segment 52 (excluding the area of ​​the wrapper). The cross-sectional porosity Z is determined by observing the cross section of the adsorption segment 52 and performing image analysis. Preferably, one to three cross sections are observed, and the Z values ​​determined for each cross section are averaged to determine the cross-sectional porosity of the segment.

[0027] [Method for Manufacturing Adsorption Segment] As described above, the adsorption segment 52 is preferably manufactured by a method including step 1 of preparing an adsorbent-containing sheet and step 2 of filling a cylindrical wrapper with the sheet.

[0028] Step 1 can be carried out by a known method using the above-mentioned components. For example, a paper sheet can be produced by preparing a slurry by mixing the above-mentioned components and then making the slurry into a paper. Alternatively, a cast sheet can be produced by casting the slurry onto a substrate.

[0029] Step 2 can also be carried out by a known method. For example, it can be carried out by filling a folded adsorbent-containing sheet or a cut adsorbent-containing sheet into a cylindrical wrapper. Alternatively, an adsorbent-containing sheet can be folded to form a cylindrical shape and then wrapped in a wrapper to produce an adsorbent segment. Before step 2, a step of subjecting the adsorbent-containing sheet to the above-mentioned surface treatment may be provided.

[0030] 2) Mouth-side Segment The mouth-side segment 51 may be a filter commonly 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.

[0031] 3) Upstream Segment Figure 3 shows an embodiment in which the mouthpiece 5 is composed of three segments. In the figure, 53 is the upstream segment. The upstream segment 53 can be composed of any material, but is preferably a center-hole filter. If the upstream segment 53 is a center-hole filter, the upstream segment 53 and the mouthpiece-side segment 51, which have high rigidity, can be arranged on either side of the adsorption segment 52, which has relatively low rigidity, thereby improving the strength of the non-combustion heating flavor inhalation article 10. Furthermore, the positions of the upstream segment 53 and the adsorption segment 52 can be interchanged, but the embodiment shown in Figure 3 is preferred from the perspective 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.

[0032] (2) Tobacco Component A tobacco component is a substantially cylindrical component for generating flavor and aroma components contained in tobacco raw materials. A tobacco component comprises a tobacco material and a cigarette paper (wrapper) surrounding the tobacco material. The shape of the tobacco material filled into the cigarette paper is not limited, and examples include a sheet, the sheet cut into widths of 0.8 to 1.2 mm, or shreds cut into widths of 0.8 to 1.2 mm. The sheet may be gathered, folded, or spirally wound without being cut, and then filled into cigarette paper to form a tobacco component. Alternatively, the sheet may be cut into strips and filled into cigarette paper concentrically or with the longitudinal direction of the strips parallel to the longitudinal direction of the tobacco component to form a tobacco component.

[0033] The packing density of the tobacco material is not particularly limited, but from the viewpoint of ensuring the characteristics of the non-combustion heating type flavor inhalation article and imparting a good smoking taste, it is usually 200 mg / cm ３or more, preferably 250 mg / cm ３ The upper limit is usually 800 mg / cm ３ or less, preferably 600 mg / cm ３ 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.

[0034] The tobacco material may generate steam when heated. The heating temperature is not limited, but is preferably about 30 to 400°C. To promote the generation of aerosol, an aerosol source such as glycerin, propylene glycol, or a polyol such as 1,3-butanediol 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 and the like may be added to the tobacco material.

[0035] (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 promoting 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, which is more rigid than cigarette paper or tipping paper. The paper tube may be provided with ventilation V (openings). Multiple ventilations are preferably provided along the circumference of the paper tube. The cooling member may also be filled with a gathered sheet to improve 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 and aroma generated from the tobacco member 1 are sufficiently cooled by the cooling member 3, resulting in the generation of a particle phase (aerosol) and a vapor phase. As a result, the adsorbent segment 51 can selectively remove 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.

[0036] 2. Non-combustion heating type flavor inhalation system The combination of a non-combustion heating type flavor inhalation article and a heating unit is also called a non-combustion heating type flavor inhalation system. Figure 4 shows one embodiment of this 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.

[0037] 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.

[0038] The non-combustion heating type flavor inhalation system may also be an induction heating (IH) system. In this embodiment, the heating unit 30 is configured with an induction coil. The heating unit is typically 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 energizing the induction coil.

[0039] The following are embodiments. Aspect 1: A non-combustion flavor inhalation article having a tobacco member, a cooling member, and a mouthpiece, wherein the mouthpiece is provided with an adsorption segment containing an adsorbent, and the adsorption segment has a thickness of 5 mmH. ２ A non-burning flavor inhalation article having an airflow resistance of 0 or less, and an amount of adsorbent of 4 to 10 (mg / mm of longitudinal length of adsorption segment). Aspect 2 The non-burning flavor inhalation article according to Aspect 1, wherein the adsorption 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 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, when the width is taken as the width in the short side direction of the non-burning flavor inhalation article. Aspect 6 The adsorption segment has a basis weight of 50 gsm (g / m ２Aspect 7. The non-burning flavor inhalation article of any one of Aspects 1 to 6, wherein the mouthpiece further comprises a mouth-side segment disposed downstream of the adsorption segment. Aspect 8. The non-burning flavor inhalation article of any one of Aspects 1 to 7, wherein the adsorption segment has a cross-sectional porosity of greater than 30%.

[0040] [Examples and Comparative Examples] A non-combustion heating type flavor inhalation article shown in Figure 1 was prepared. However, the mouthpiece configuration was as shown in Table 1. For example, the mouthpiece of Comparative Example 2 had a CH / CF / AF configuration toward the downstream side, and the mouthpiece of Example 1 had a CS / AF configuration toward the downstream side. The diameter of the mouthpiece was 7 mm.

[0041] CH: Center hole filter CF: Charcoal filter CS: Activated carbon 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

[0042] The tobacco member end of the non-combustion heating 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 DNPH (2,4-dinitrophenylhydrazine) solution were placed on the mouth end of the article, and the article was subjected to a smoking test using a smoking machine. Specifically, using an automatic smoking machine (LM-1, manufactured by Borgwaldt KC Inc.), the sample was automatically smoked under the following conditions: puff volume 27.5 ml / sec, puff time 2 sec / puff, puff frequency 2 puffs / min, 10 puffs.

[0043] Nicotine and glycerin were analyzed as follows. After the smoking test, the Cambridge filter was shaken in 10 mL of methanol (special grade, 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 (Agilent GC-MSD, GC: 7890A, MS: 5975C).

[0044] Among the carbonyl components, acetaldehyde and acrolein were analyzed using the following method. After the smoking test, the Cambridge filter was immersed in the impinger collection solution and shaken, and then the solids were filtered using a membrane filter. Furthermore, a predetermined amount of the filtrate was added to the Trizma base solution and shaken to terminate the derivatization reaction. The solution was again filtered through a membrane filter and then subjected to HPLC-DAD to analyze the carbonyl components. The carbonyl component analysis method was based on the disclosures in WO 2004 / 026054 and CORESTA Recommended Method No. 96 - Determination of Formaldehyde and Acetaldehyde in E-Vapor Product Aerosol February 2021.

[0045] 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 delivery was observed for nicotine and glycerin in Comparative Example 3, but an increase was observed in the Examples. For example, a 10% increase in glycerin delivery 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 delivery was observed for acetaldehyde, acetone, and acrolein in the Examples and Comparative Example 3. From the above, it is clear that the non-combustion heating-type flavor inhalation articles of the Examples selectively deliver the particle phase.

[0046] REFERENCE SIGNS LIST 10 Non-combustion heating type flavor inhalation article 1 Tobacco member 3 Cooling member 5 Mouthpiece 51 Mouthpiece-side segment 52 Adsorption segment 53 Upstream-side segment V Ventilation 100 Non-combustion heating type flavor inhalation system 30 Heating unit equipped with heater 520 Adsorbent-containing sheet 522 Wrapper

Claims

1. A non-combustion type flavor inhalation article having a tobacco component, a cooling component, and a mouthpiece, The mouthpiece comprises an adsorption segment containing an adsorbent, The adsorption segment is 5 mmH ２ Having an air permeability resistance of 0 or less, The amount of adsorbent is 4 to 10 (mg / length of the adsorbent segment in mm). Non-combustible flavor inhalant product.

2. The non-combustible flavor-absorbing article according to claim 1, wherein the adsorption segment comprises an adsorbent-containing sheet.

3. The non-combustible flavor-absorbing article according to claim 1 or 2, wherein the adsorbent is activated carbon.

4. The sheet comprises pulp, as described in claim 2, for a non-combustible flavor-absorbing article.

5. When the width of the non-combustible flavor-absorbing article is defined as the shorter side, The non-combustible flavor-absorbing article according to claim 1 or 2, wherein the adsorption segment is filled with the sheet having a width of 150 mm or less.

6. The adsorption segment has a basis weight of 50 gsm (g / m²). ２ A non-combustible flavor-absorbing article according to claim 1 or 2, comprising a wrapper of ) or more.

7. The non-combustion type flavor inhalation article according to claim 1 or 2, wherein the mouthpiece further comprises an inhalation-side segment disposed downstream of the adsorption segment.

8. The non-combustible flavor-absorbing article according to claim 1 or 2, wherein the adsorption segment has a cross-sectional porosity greater than 30%.