TW202327471A - Odor reducing filter and aerosol generating article comprising it - Google Patents

Abstract

A smell reduction filter may comprise: a filter tow; a groove sheet which wraps the filter tow; a filter sheet which wraps the grooved sheet; and an air tunnel which is formed, by the groove sheet and the filter sheet, to extend in the wrapping axis direction of the filter tow and the groove sheet.

Description

Odor-reducing filter and aerosol-generating article including same

The following examples relate to an odor reducing filter and a cigarette using the same.

When the user smokes, the cigarette is held between the user's fingers, and the user inhales the aerosol by inhaling. At this point, mainstream smoke can move through the pathways inside the cigarette and flow out through the cigarette's ventilation means (eg, perforations) to come into contact with the user's fingers. Therefore, a bad smell and a hot feeling due to the mainstream smoke may be transmitted to the user's fingers. For example, Laid-Open Patent Publication No. 10-2011-0128027 discloses a finger cot for smoking.

[Technical Issues]

It is an object according to an embodiment to prevent polluted air or aerosols from being expelled through the perforations by allowing movement of outside air in one direction to dilute the aerosol comprising the medium while preventing movement in the opposite direction to one direction.

The aim according to an embodiment is to reduce cigarette odor emanating from hands after smoking by using an odor reducing filter to block aerosols emanating from the perforations during smoking.

[Technical method]

An odor reducing filter according to various embodiments may comprise: a filter tow; a grooved sheet wrapped around the filter tow; a filter sheet wrapped around the grooved sheet; and an air channel formed by the grooved sheet and The filter tip sheet is formed by extending along the winding axis direction of the filter tip tow and the groove sheet.

In an embodiment, the grooved sheet may be formed from a non-porous material and the filter sheet may be formed from a porous material.

In an embodiment, a tipping paper surrounding the exterior of the odor reducing filter is further included, and the tipping paper may include perforations through which external air flows into the interior of the odor reducing filter.

In an embodiment, the perforations may be located in the path of the air channel.

In an embodiment, an airflow blocking member disposed at one end of the air channel to block the passage of airflow may also be included.

In an embodiment, the airflow blocking member may include a blocking tube including a plurality of grooves extending in the axial direction.

An aerosol-generating article according to various embodiments comprises: a media segment containing media; and a filter segment disposed downstream of said media segment, wherein said filter segment comprises: a first flow path within said aerosol extending in the longitudinal direction of the aerosol-generating article, and the mainstream smoke flows through the first flow path; a second flow path extending in the longitudinal direction of the aerosol-generating article and introduced from the outside of the aerosol-generating article The air flows through the second flow path, wherein the first flow path and the second flow path may be independent of each other.

In an embodiment, the first flow path comprises a filter tow and the second flow path may be formed by a fluted sheet wrapped around the filter tow and a filter sheet wrapped around the fluted sheet.

In an embodiment, the grooved sheet may be formed from a non-porous material and the filter sheet may be formed from a porous material.

In an embodiment, a tipping paper is also included surrounding the exterior of the filter segment, and the tipping paper may include perforations through which external air flows into the interior of the filter segment.

In one embodiment, there may be included: a first air flow generated in the media section and flowing in a downstream direction of the aerosol-generating article; and a second air flow entering the perforation and flowing along the aerosol-generating article. A downstream direction flow of the product is generated, wherein the first air stream and the second air stream can flow independently.

In an embodiment, it may further include an air flow blocking member disposed at the upstream end of the second flow path.

In an embodiment, the airflow blocking member may include a blocking pipe including a plurality of grooves formed in an axial direction.

In one embodiment, it further includes a cavity section arranged at the downstream end of the medium section, and the cavity section can cool the aerosol generated in the medium section.

[Technical Effect]

Odor-reducing filters and aerosol-generating articles according to an embodiment can prevent the passage of polluted air or aerosols by allowing movement of outside air in one direction to dilute aerosols comprising a medium while preventing movement in the opposite direction to one direction. Perforated discharge.

An odor reducing filter and aerosol generating article according to an embodiment can reduce cigarette odor emitted from hands after smoking by using the odor reducing filter to block aerosol emitted from perforations during smoking.

However, the effects of the odor-reducing filter and aerosol-generating product according to one embodiment are not limited to the effects mentioned above, and other effects not mentioned will be clearly understood by those skilled in the art to which the present invention belongs through the following description.

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. However, various modifications can be made to the examples, and the scope of rights of the present invention is not limited or limited by the examples. All strains, equivalents, or substitutes for the embodiments are included within the scope of the rights.

The terms used in the embodiments are for describing specific embodiments only, and are not intended to limit the embodiments. Unless otherwise specified in the content, a singular expression includes a plural meaning. In the present invention, terms such as "comprising" or "having" are used to express the presence of features, numbers, steps, operations, constituent elements, accessories or combinations thereof described in the specification, and do not exclude the presence of one or more other features , digits, steps, operations, constituent elements, accessories or combinations thereof, or additional functions.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the usual meanings understood by those skilled in the art to which this invention belongs. Commonly used terms that are the same as those defined in dictionaries should be understood as meanings that are consistent with the usual content of related technologies, and should not be overly idealized or interpreted as formal meanings unless explicitly stated in the present invention.

In addition, in the description with reference to the drawings, the same constituent elements are assigned the same reference numerals regardless of the reference numerals, and redundant description thereof will be omitted. In describing the embodiments, when it is judged that the specific descriptions of related known technologies will unnecessarily confuse the embodiments, the detailed descriptions thereof are omitted.

Also, in describing elements of the embodiments, terms such as first, second, A, B, (a), (B) may be used. These terms are used only to distinguish its constituent element from another constituent element, and the nature, sequence or order of the element is not limited by these terms. When a constituent element is described as being "connected", "coupled" or "contacting" to another constituent element, it is to be understood that its constituent elements may be directly connected or attached to another constituent element, or that another constituent element "Connect," "join," or "contact" between constituent elements.

For constituent elements included in a certain embodiment and elements having common functions, the same names may be used in another embodiment to describe. Unless otherwise mentioned, a description about a certain embodiment may be applicable to other embodiments, and a detailed description thereof will be omitted within the scope of repetition.

In the following embodiments, "aerosol-forming substrate" may refer to a material capable of forming an aerosol. Aerosols can include volatile compounds. Aerosol-forming substrates can be solid or liquid. For example, solid aerosol-forming substrates may include solid materials based on tobacco raw materials, such as tobacco leaves, shredded tobacco, reconstituted tobacco, etc.; liquid aerosol-forming substrates may include liquid compositions based on nicotine, tobacco extract and/or various flavoring agents. However, the scope of the present invention is not limited to these examples.

In the following examples, "aerosol-generating article" may refer to an article containing a medium through which an aerosol passes and transfers the medium. A representative example of an aerosol-generating article may be a cigarette, but the scope of the present invention is not limited thereto.

In the following embodiments, "upstream" or "upstream direction" may refer to a direction away from the user's (smoker's) mouth, and "downstream" or "downstream direction" may refer to a direction closer to the user's mouth. The terms upstream and downstream may be used to describe the relative positions of the elements making up the aerosol-generating article. For example, in the aerosol-generating article (1) shown in Figure 6, the medium segment (20) is located upstream or upstream of the cavity segment (30), and the cavity segment (30) is located downstream or downstream direction.

In the following embodiments, "puff" refers to user's inhalation (inhalation), and inhalation refers to a situation where a substance is sucked into the user's oral cavity, nasal cavity or lungs through the user's mouth or nose.

In the following examples, "mainstream smoke" refers to the smoke and/or aerosol directly inhaled into the user's mouth when the user inhales an aerosol-generating product and/or cigarette; Smoke and/or aerosols produced by the burned portion of an article and/or cigarette.

In the following, various embodiments according to the drawings will be described.

Fig. 1 is a schematic diagram showing the structure of an odor reducing filter (10) according to an embodiment.

Referring to FIG. 1 , an odor reducing filter ( 10 ) according to an embodiment may include a filter tow ( 11 ), a grooved sheet ( 12 ) and a filter sheet ( 13 ).

In an embodiment, the filter tow (11) may comprise a filter material such as paper, cellulose acetate fiber, or the like. The filter tow (11) according to an embodiment can filter harmful substances included in mainstream smoke passing through the odor reducing filter (10).

In an embodiment, the groove sheet (12) (groove sheet) has a non-smooth outer surface, which may include a plurality of elongated ridges formed by ridges extending in the longitudinal direction of the groove sheet (12). Groove. The plurality of grooves may form a serpentine outer surface extending in one direction.

In an embodiment, the grooved sheet (12) may be formed from a non-porous material. A non-porous material according to an embodiment refers to a material having the property of having no or very small gaps or pores in the material to allow liquid and/or gas to pass through.

With continued reference to Figure 1 , a fluted sheet (12) according to an embodiment may be arranged to be wrapped by a filter tow (11).

In an embodiment, the filter sheet (13) may have a smooth outer surface. In other embodiments, the filter insert (13) may have a non-smooth outer surface. A filter sheet (13) according to an embodiment or another embodiment may be arranged to be wound on the surface of a grooved sheet (12) arranged to be wrapped by filter tow (11) winding.

In an embodiment, the filter tip (13) may be formed from a porous material. A porous material according to an embodiment refers to a material having a property of including many gaps or pores inside or on a surface of the material for passage of liquid and/or gas.

Since the filter sheet (13) according to one embodiment or another embodiment is arranged to be wound on the surface of the grooved sheet (12), a space according to an embodiment can be formed between the grooved sheet (12) and the filter sheet. (13) BETWEEN. The space according to an embodiment may include an air channel (AT) formed extending along the winding axis direction of the filter tow (11) and the grooved sheet (12).

Fig. 2 is a schematic diagram showing the structure of an odor reducing filter (10) including a tipping paper (14) according to an embodiment.

Referring to Figure 2, the odor reducing filter (10) according to an embodiment may further include a tipping paper (14). Tipping paper (14) is the material that is usually wrapped around the aerosol generating article and/or cigarette. The tipping paper (14) according to an embodiment may be arranged to be wrapped on the outer surface of the filter sheet (13).

The tipping wrap (14) according to an embodiment may include perforations (142). In an embodiment, the perforation (142) may be provided on the side of the smoker's mouth in the tipping paper (14) according to an embodiment, when the user inhales the aerosol generating article and/or the cigarette, the outside air Together with the mainstream smoke, it is drawn into the inside of the odor reducing filter (10) through the perforations (142), thereby diluting the toxicity of the mainstream smoke.

In an embodiment, the tipping paper (14) may be arranged to be wrapped around the outer surface of the filter sheet (13), and the perforations (142) included in the tipping paper (14) may be located at the on the path. The perforations (142) according to an embodiment are located on the path of the air channel (AT) such that when the user inhales the aerosol generating article and/or cigarette, external air is introduced through the perforations (142) and the external air can pass through A filter tip (13) is formed from a porous material and is conveyed to the user's mouth along the air passage (AT). External air can pass through the filter tip sheet (13) formed of porous material, but cannot pass through the groove sheet (12) formed of non-porous material.

Fig. 3 is a cross-sectional view showing an odor reducing filter (10) according to an embodiment.

Referring to Fig. 3, the odor reducing filter (10) according to one embodiment may include a filter tow (11) arranged in the central part, a grooved sheet (12) wrapped around the filter tow (11), and a wound grooved sheet (12 ) of the outer surface of the filter piece (13). Furthermore, the odor reducing filter (10) according to an embodiment may comprise a tipping paper (14) wrapped around the outer surface of the filter sheet (13). The odor reducing filter (10) according to an embodiment may further comprise air channels (AT) formed by the grooved sheet (12) and the filter sheet (13).

Fig. 4 is a schematic diagram showing a cross-section of an odor reducing filter (10) including an air flow blocking member (15) according to an embodiment.

Referring to Fig. 4, the odor reducing filter (10) according to an embodiment may further include an air flow blocking member (15). The airflow blocking member (15) according to an embodiment may be formed of a non-porous material through which gases and/or aerosols cannot pass. Preferably, mainstream smoke, sidestream smoke and/or external air cannot pass through the airflow blocking member (15).

Continuing to refer to FIG. 4 , an airflow blocking member ( 15 ) according to an embodiment may be disposed at an upstream end of the air passage (AT). When the airflow blocking member (15) according to an embodiment is arranged at the upstream end of the air passage (AT), when the user inhales the aerosol generating product and/or the cigarette, only the outside air passes through the tipping paper (14) The perforations (142) pass through the air passage (AT) to the user's mouth, and mainstream smoke cannot enter the air passage (AT) due to the air flow blocking member (15). Thereby, odors and/or mainstream smoke as a source of odors can be prevented from passing through the perforations ( 142 ) to the user's fingers.

In an embodiment, the air flow blocking member ( 15 ) can be realized in various shapes. In order to prevent gas and/or aerosol from flowing into one end of the air passage (AT), the cross section of the airflow blocking member (15) is preferably formed in the same shape as that of the air passage (AT), but not limited thereto. The airflow blocking member (15) according to an embodiment can be provided at one end of the air passage (AT) using an interference fit method, a coupling method by providing an attracting material, an insertion method, etc., and it can be arranged so that Prevents large quantities of gas and/or aerosols from entering the air passage (AT).

The airflow blocking member (15) according to an embodiment may include a blocking tube (150) provided at one side of the odor reducing filter (10) to block all ends of the plurality of air passages (AT).

Hereinafter, the blocking pipe ( 150 ), which is one of various embodiments of the airflow blocking member ( 15 ), will be described in detail.

5a and 5b are schematic diagrams showing the structure of the odor reducing filter (10) including the barrier tube (150) and the section of the barrier tube (150) according to an embodiment.

Referring to FIG. 5 a , the barrier tube ( 150 ) according to an embodiment may be formed in a cylindrical shape having the same circumference as that of the odor reducing filter ( 10 ). Referring to Fig. 5b, the barrier tube (150) according to an embodiment may include a plurality of grooves (152) extending in the axial direction of the barrier tube (150) (see Fig. 5b).

The plurality of grooves 152 according to an embodiment may be formed of a non-porous material through which gases and/or aerosols cannot pass. Preferably, neither mainstream smoke, sidestream smoke nor outside air can pass through the plurality of grooves ( 152 ) according to an embodiment.

A plurality of grooves ( 152 ) formed on the inner side of the blocking tube ( 150 ) according to an embodiment and extending in the axial direction may be integrated with the air passage (AT) included in the odor reducing filter ( 10 ) according to an embodiment. One to one correspondence. In one embodiment, the one-to-one correspondence between the plurality of grooves (152) of the blocking tube (150) and the air channel (AT) is in a direction opposite to the direction in which the blocking tube (150) of the odor reducing filter (10) is arranged. Upflow air cannot be introduced into the air channel (AT).

The barrier tube ( 150 ) according to an embodiment can be manufactured by a single manufacturing process, thereby improving manufacturing convenience when manufacturing the disclosed odor reducing filter ( 10 ) and/or aerosol generating article ( 1 ).

Fig. 6 is a schematic diagram showing an aerosol generating article (1) according to an embodiment.

Referring to Fig. 6, an aerosol generating article (1) according to an embodiment may comprise a filter segment, a media segment (20) and a cavity segment (30).

In an embodiment, the filter segment may preferably comprise an odor reducing filter (10) according to an embodiment. The filter segment may comprise filter tow (11), fluted sheet (12), filter sheet (13), air channels (AT) and tipping paper (14) (see Figure 2). According to an embodiment of the filter segment, preferably the odor reducing filter (10) may be arranged downstream of the media segment (20).

In an embodiment, the media segment (20) may contain media. The medium according to one embodiment may include solid materials based on tobacco raw materials, such as tobacco leaves, shredded tobacco, and reconstituted tobacco, and liquid compositions based on nicotine, tobacco extract and/or various flavoring agents, but are not limited thereto.

In an embodiment, the cavity section (30) may perform a cooling function for aerosols generated in the media section (20) of the aerosol-generating article (1) and moving in a downstream direction.

With continued reference to Figure 6, an aerosol-generating article (1 ) according to an embodiment may comprise a wrapper (10a, 20a and 30a) surrounding each segment. The wrapper (10a, 20a, and 30a) according to an embodiment may be used to protect and support the internal components of each segment from external impact and/or dust.

In the following, a filter segment according to an embodiment, preferably, the structure of the odor reducing filter (10) and the movement mode of the airflow inside the odor reducing filter (10) will be described in detail.

Fig. 7 is a schematic diagram illustrating movement of airflow in an odor reducing filter (10) of an aerosol generating article (1) according to an embodiment.

Referring to FIG. 7 , the filter segment according to an embodiment may further include a first flow path ( P1 ) and a second flow path ( P2 ).

In an embodiment, the first flow path (P1) may extend in the longitudinal direction of the aerosol-generating article (1). A first air flow (eg, solid arrow in FIG. 7 ) may flow through the first flow path ( P1 ) according to an embodiment. The first airflow according to an embodiment may comprise mainstream smoke. According to an embodiment, the first flow path (P1) may be formed on the space provided with the filter tow (11), and the first air flow moving through the first flow path (P1) is generated in the media section (20) And flow to the downstream of the aerosol generating product (1), and its toxic substances can be filtered out by the filter tow (11).

In an embodiment, the second flow path ( P2 ) is a path through which external air flows, and may extend in the longitudinal direction of the aerosol-generating article ( 1 ). A second gas flow (eg, dashed arrow in FIG. 7 ) may flow through the second flow path ( P2 ) according to an embodiment. The second airflow according to an embodiment may be introduced through the perforations (142) of the tipping paper (14) and flow in a downstream direction of the aerosol-generating article (1). The second flow path ( P2 ) according to an embodiment may be a spatial path formed by the groove sheet ( 12 ) and/or the filter sheet ( 13 ).

Continuing to refer to Figure 7, when the upstream end of the air passage (AT) of the filter segment, preferably an odor reducing filter (10), is unblocked, the first flow path (P1) may comprise a path over the air passage (AT). In this case, the mainstream smoke moving along the first flow path ( P1 ) can be delivered to the user's fingers through the perforations ( 142 ) of the tipping paper ( 14 ). To prevent this, an air flow blocking member (15) may be included in the filter segment, preferably in the upstream end of the air passage (AT) of the odor reducing filter (10) (see Figure 8).

Fig. 8 is a schematic diagram showing movement of airflow in an odor reducing filter of an aerosol generating article according to another embodiment.

Referring to Fig. 8, the upstream end of the filter segment of the aerosol generating article (1), preferably the air passage (AT) of the odor reducing filter (10) according to an embodiment may be provided with an airflow blocking member (15).

In an embodiment, the airflow blocking member (15) may include a blocking tube (150). The barrier tube ( 150 ) according to an embodiment may be formed in a cylindrical shape with the same circumference as the odor reducing filter ( 10 ) (see FIG. 5 a ). The barrier tube ( 150 ) according to an embodiment may comprise a plurality of grooves ( 152 ) extending in the axial direction of the barrier tube ( 150 ) (see FIG. 5 b ).

The plurality of grooves ( 152 ) according to an embodiment may be formed of a non-porous material through which gases and/or aerosols cannot pass. Preferably, neither mainstream smoke, sidestream smoke nor outside air can pass through the plurality of grooves ( 152 ) according to an embodiment.

A plurality of grooves ( 152 ) formed on the inner side of the blocking tube ( 150 ) according to an embodiment and extending in the axial direction may be integrated with the air passage (AT) included in the odor reducing filter ( 10 ) according to an embodiment. One to one correspondence. In one embodiment, due to the structure of the plurality of grooves (152) and the air passage (AT) of the barrier tube (150), it moves in the direction opposite to the direction in which the barrier tube (150) of the odor reducing filter (10) is arranged The air cannot be introduced into the air channel (AT).

The barrier tube ( 150 ) according to an embodiment can be manufactured by a single manufacturing process, thereby improving manufacturing convenience when manufacturing the disclosed odor reducing filter ( 10 ) and/or aerosol generating article ( 1 ).

In one embodiment, due to the air blocking member (15) (preferably, blocking tube (150)) disposed at the upstream end of the air channel (AT), the first air flow (eg, the solid arrow in FIG. 8 ) cannot move to the air channel (AT) and only move to the center of the odor reducing filter (10) where the filter tow (11) is placed. Furthermore, the second airflow according to an embodiment (eg dashed arrow in Fig. 8) can only move through the air channel (AT) and cannot move to the area where the filter tow (11) is placed. That is, the first air flow (for example, the solid arrow in FIG. 8 ) and the second air flow (for example, the dotted arrow in FIG. 8 ) may flow independently. Therefore, the first flow path (P1) through which the first airflow (for example, the solid arrow in FIG. 8 ) flows and the second flow path (P2) through which the second airflow (for example, the dotted arrow in FIG. 8 ) flows may also be independent of each other.

As described above, since the first flow path ( P1 ) and the second flow path ( P2 ) are formed independently of each other, when the user inhales the aerosol through the aerosol generating article ( 1 ) according to an embodiment, External air is introduced through the perforations (142) and dilutes the toxicity of the mainstream smoke, and also prevents the mainstream smoke from flowing into the air passage (AT), thereby preventing the odor and/or odor caused by the mainstream smoke from remaining on the user's fingers.

To sum up, the embodiments have been described through limited embodiments and accompanying drawings, and those skilled in the art to which the present invention pertains can make various modifications and variations to the above descriptions. For example, the described techniques are performed in a different order than the described method, and/or the described components are combined or combined in a different form than the described method, or are replaced by other components or equivalents or Replacement can also achieve the same effect.

Therefore, other embodiments, other embodiments, and equivalents within the scope of the claims all belong to the protection scope of the claims of the present invention.

1: Aerosol generating products 10: Odor Reducing Filters 10a, 20a, 30a: wrapping paper 11: Filter tow 12: Groove sheet 13: filter tip 14: Tipping paper 142: perforation 15: Airflow blocking member 150: blocking tube 152: Groove 20: Media segment 30: cavity segment AT: air channel P1: First flow path P2: Second flow path

FIG. 1 is a schematic diagram showing the structure of an odor reducing filter according to an embodiment. FIG. 2 is a schematic diagram showing the structure of an odor reducing filter including a tipping paper according to an embodiment. Fig. 3 is a sectional view showing an odor reducing filter according to an embodiment. FIG. 4 is a schematic diagram illustrating a section of an odor reducing filter including an airflow blocking member according to an embodiment. Fig. 5a is a schematic diagram showing the structure of an odor reducing filter including a barrier tube according to an embodiment. Fig. 5b is a schematic diagram illustrating a section of a barrier tube according to an embodiment. FIG. 6 is a schematic diagram illustrating an aerosol-generating article according to an embodiment. FIG. 7 is a schematic diagram illustrating movement of airflow in an odor reducing filter of an aerosol generating article according to an embodiment. Fig. 8 is a schematic diagram showing movement of airflow in an odor reducing filter of an aerosol generating article according to another embodiment.

10: Odor Reduction Filters

11: Filter tow

12: Groove piece

13: Filter tip

14: Tipping paper

142: perforation

AT: air channel

Claims (14)

An odor reducing filter wherein, include: a filter tow; a fluted sheet wrapped around the filter tow; a filter sheet wrapped around the fluted sheet; and An air passage is formed by extending the groove sheet and the filter tip sheet along the winding axis direction of the filter tow and the groove sheet. The odor reducing filter according to claim 1, wherein, The fluted sheet is formed from a non-porous material and the filter sheet is formed from a porous material. The odor reducing filter according to claim 1, wherein, also includes a tipping wrap around the exterior of the odor reducing filter, The tipping paper includes a perforation through which outside air flows into the interior of the odor reducing filter. The odor reduction filter according to claim 3, wherein, The perforation is located in the path of the air channel. The odor reducing filter according to claim 1, wherein, It also includes an airflow blocking member arranged at one end of the air channel to block the passage of airflow. The odor reducing filter according to claim 5, wherein, The air flow blocking member includes a blocking tube including a plurality of grooves extending in the axial direction. An aerosol-generating article wherein, include: a media segment containing the media; and a filter segment disposed downstream of the media segment, Wherein the filter segment includes: a first flow path extending in the longitudinal direction of the aerosol-generating article and through which a mainstream aerosol flows; and a second flow path extending in the longitudinal direction of the aerosol-generating article, and air introduced from the outside of the aerosol-generating article flows through the second flow path, Wherein the first flow path and the second flow path are independent of each other. The aerosol-generating article according to claim 7, wherein, the first flow path includes a filter tow, The second flow path is formed by a fluted sheet wrapped around the filter tow and a filter sheet wrapped around the fluted sheet. The aerosol-generating article according to claim 8, wherein, The fluted sheet is formed from a non-porous material and the filter sheet is formed from a porous material. The aerosol-generating article according to claim 7, wherein, also including a tipping wrap around the exterior of the filter segment, The tipping paper includes a perforation through which outside air flows into the interior of the filter segment. The aerosol-generating article according to claim 10, wherein, include: a first air stream generated in the media section and flowing in a downstream direction of the aerosol-generating article; and a second air stream entering the perforation and flowing in a downstream direction of the aerosol-generating article, Wherein the first air flow and the second air flow flow independently. The aerosol-generating article according to claim 7, wherein, Also included is an air flow blocking member disposed at an upstream end of the second flow path. The aerosol-generating article according to claim 12, wherein, The airflow blocking member includes a blocking pipe including a plurality of grooves formed in the axial direction. The aerosol-generating article according to claim 7, wherein, Also includes a cavity section disposed at the downstream end of the medium section, The cavity section cools aerosols generated in the medium section.

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