WO2025031412A1 - Aerosol generating product - Google Patents

Abstract

An aerosol generating product, comprising a vapor-producing section (1), a flow-disturbing section (2) and a mouthpiece section (3), which are connected in sequence, wherein an axial through cavity (21) is provided in the flow-disturbing section (2); and the mouthpiece section (3) is provided with at least one ventilation hole (4), and the ventilation hole (4) is configured to guide external air into the mouthpiece section (3). By means of introducing a combined gradient ventilation structure, the aerosol generating product takes into consideration both the cooling and transfer of active substances in an aerosol; thus, the problem of an insufficient cooling effect or excessive condensation of the aerosol caused by implementing ventilation only by means of perforation is avoided, and bad consumption experiences such as local overheating of a cigarette and condensate accumulation can also be prevented; and the temperature of the outer wall of the cigarette and the temperature of vapor are both reduced.

Description

An aerosol generating product

This application claims the priority of the Chinese patent application filed with the China Patent Office on August 8, 2023, with application number 202310995584.X and invention name “A Aerosol Generating Article”, the entire contents of which are incorporated by reference into this application.

Technical Field

The present application relates to the technical field of cigarette production, and in particular to an aerosol generating product.

Background Art

Heated cigarettes are a new type of tobacco product that produces inhalable aerosol containing nicotine by heating without burning. The mainstream heated cigarettes on the market are currently used in conjunction with electric heating devices. Depending on the diameter of the cigarette, the heating method and the maximum heating temperature are also different. For heated cigarettes with a diameter of less than 7mm, the peripheral heating method is usually used, and the maximum heating temperature is generally lower than 300℃; for heated cigarettes with a diameter of more than 7mm, the central heating method is usually used, and the maximum heating temperature is generally higher than 300℃.

The tobacco containing atomizers in heated cigarettes will produce superheated aerosol substances after being heated. The superheated aerosol substances cool down as they flow or mix with the air, and the compounds in them condense to form inhalable aerosols. The temperature of the aerosol is crucial to the smoking experience. Too high a temperature will cause consumers' mouths to burn, and the outer wall of the cigarette will burn their lips; if the temperature is too low, the effective substances in the aerosol will condense and deposit prematurely, reducing the smoking quality.

Currently, heated cigarettes are cooled mainly by cooling materials (such as polylactic acid (PLA) and phase change polymers) or by perforated ventilation. Perforated ventilation is more mature in traditional cigarettes, but the ventilation method of heated cigarettes, which are different from traditional cigarettes in length and structure, needs to be redesigned.

Summary of the invention

In order to solve the above-mentioned technical problems, the purpose of the present invention is to provide an aerosol generating product; the aerosol generating product provided by the present application introduces a combined gradient ventilation structure, which takes into account both cooling and the transmission of effective aerosol substances, avoids the problem of insufficient cooling effect or excessive condensation of aerosol caused by a single perforated ventilation form, and can prevent local overheating of cigarettes and accumulation of condensates and other adverse consumer experiences, thereby achieving a dual reduction in the temperature of the outer wall of the cigarette and the smoke.

The technical solution provided by the present invention is as follows:

An aerosol generating product comprises a smoke generating section, a flow turbulence section and a mouthpiece section which are connected in sequence.

The spoiler section is provided with a cavity penetrating along the axial direction;

The mouthpiece segment is provided with at least one ventilation hole, and the ventilation hole is used to introduce external air into the mouthpiece segment.

Preferably, the cross-sectional size and shape of the cavity perpendicular to the axial direction are constant, or the cross-sectional size and/or shape vary.

Preferably, the wall thickness of the spoiler section is 1 mm to 2 mm.

Preferably, the cigarette holder segment comprises a cigarette holder filament bundle and a tipping paper wrapped around the outer periphery of the cigarette holder filament bundle;

The ventilation holes penetrate through the tipping paper.

Preferably, a shaping paper is provided between the cigarette holder tow and the tipping paper, and the ventilation degree of the shaping paper is greater than 6000 CU.

Preferably, when the length of the mouthpiece segment is ≥7 mm, the distance between the ventilation hole and the mouthpiece end surface is ≥6 mm;

When the length of the mouthpiece section is less than 7 mm, the ventilation hole is arranged at the connection between the mouthpiece section and the spoiler section.

Preferably, the mouthpiece segment is provided with a plurality of ventilation holes, and the plurality of ventilation holes are arranged in a circle around the mouthpiece segment.

Preferably, the tipping paper has a grammage of ≥40 g/m ² .

Preferably, the spoiler section is provided with at least one ventilation hole.

Preferably, the area of the ventilation hole is 0.01 mm ² -0.10 mm ² .

Preferably, a transmission section is further provided between the spoiler section and the mouthpiece section, and the transmission section comprises an inner core of the transmission section and a tipping paper wrapped on the outer side.

Preferably, the inner core of the transmission section is a porous rod made of a cooling material, or a paper hollow tube, or an acetate fiber bundle wrapped with a molding paper, and the ventilation degree of the molding paper is greater than 6000CU.

Preferably, the porous rod or hollow tube is further wrapped with a plugging paper, the plugging paper is located inside the tipping paper, and the ventilation degree is greater than 6000 CU.

Preferably, the acetate fiber bundle wrapped by the molding paper is further provided with a hollow channel along the axial direction; the thickness of the acetate fiber bundle is 1-2 mm.

Preferably, when the inner core of the transmission section is a paper hollow tube, the wall thickness of the transmission section is 1 mm to 2 mm.

Preferably, the tipping paper of the transport section is provided with at least one ventilation hole;

When the inner core of the transmission section is a paper hollow tube, the hollow tube is provided with through holes at positions corresponding to the ventilation holes on the tipping paper.

Preferably, when the inner core of the transmission section is a paper hollow tube or an acetate fiber bundle wrapped with molding paper, the ventilation hole is located in the middle of the transmission section;

When the inner core 71 of the transmission section is a porous rod made of a cooling material, the ventilation hole is located on the side of the transmission section close to the cigarette holder section.

Preferably, the area of the ventilation hole is 0.01 mm ² -0.10 mm ² .

Preferably, a plurality of ventilation holes are provided, and the plurality of ventilation holes are arranged in a circle around the circumference of the transmission section.

The present application provides an aerosol generating product, comprising a smoking section, a spoiler section and a mouthpiece section connected in sequence, wherein the spoiler section is provided with an axially penetrating cavity; the mouthpiece section is provided with at least one ventilation hole, and the ventilation hole is used to introduce external air into the mouthpiece section. In the aerosol generating product provided by the present application, the aerosol generated after the smoking section is heated first enters the axially penetrating cavity in the spoiler section, is disturbed in the cavity, and then enters the mouthpiece section; since at least one ventilation hole is provided in the mouthpiece section, external air can enter the mouthpiece section and mix with the aerosol, playing the role of spoiler and cooling, so that the temperature of the aerosol flowing out of the mouthpiece section meets the needs of consumers.

The aerosol generating product provided in the present application introduces a combined gradient ventilation structure, which takes into account both cooling and the transmission of effective substances in the aerosol, avoids the problem of insufficient cooling effect or excessive condensation of the aerosol caused by a single perforated ventilation form, and prevents local overheating of the cigarette and accumulation of condensates and other adverse consumer experiences, thereby achieving a dual reduction in the temperature of the outer wall of the cigarette and the smoke.

BRIEF DESCRIPTION OF THE DRAWINGS

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

FIG1 is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present invention (a plug-in paper is provided at the mouthpiece section, and a vent hole is provided at the tipping paper of the mouthpiece section);

FIG2 is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present invention (both the mouthpiece section and the transmission section are provided with a plugging paper, and the tipping paper of both the mouthpiece section and the transmission section are provided with ventilation holes);

FIG3 is a schematic diagram of the structure of an aerosol generating product according to an embodiment of the present invention (the mouthpiece section is provided with a shaping paper, the tipping paper of the mouthpiece section and the transmission section are provided with ventilation holes, the transmission section is a hollow tube made of paper, The hollow tube is provided with through holes corresponding to the ventilation holes on the tipping paper);

Figure numerals: 1 - smoking section; 2 - spoiler section; 21 - cavity; 3 - mouthpiece section; 31 - mouthpiece strands; 4 - ventilation holes; 5 - shaping paper; 6 - tipping paper; 7 - transmission section; 71 - transmission section inner core.

DETAILED DESCRIPTION

In order to enable those skilled in the art to better understand the technical solutions in this application, the technical solutions in the embodiments of this application will be clearly and completely described below. Obviously, the described embodiments are only part of the embodiments of this application, not all of them. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

It should be noted that when an element is referred to as being "fixed on" or "set on" another element, it can be directly on the other element or indirectly set on the other element; when an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of this application, "multiple" and "several" mean two or more, unless otherwise clearly and specifically defined.

It should be noted that the structures, proportions, sizes, etc. illustrated in the drawings of this specification are only used to match the contents disclosed in the specification for people familiar with this technology to understand and read, and are not used to limit the conditions under which this application can be implemented. Therefore, they have no substantive technical significance. Any structural modification, change in proportional relationship or adjustment of size should still fall within the scope of the technical content disclosed in this application without affecting the effects and purposes that can be achieved by this application.

As shown in the figure, the technical solution provided by the embodiment of the present invention is as follows:

An aerosol generating product comprises a smoking section 1, a flow-disturbing section 2 and a mouthpiece section 3 which are connected in sequence.

The spoiler section 2 is provided with a cavity 21 which penetrates in the axial direction;

The mouthpiece segment 3 is provided with at least one ventilation hole 4 , and the ventilation hole 4 is used to introduce external air into the mouthpiece segment 3 .

The present application provides an aerosol generating product, comprising a smoking segment 1, a spoiler segment 2 and a mouthpiece segment 3 connected in sequence, wherein the spoiler segment 2 is provided with an axially penetrating cavity 21; the mouthpiece segment 3 is provided with at least one ventilation hole 4, and the ventilation hole 4 is used to introduce external air into the mouthpiece segment 3. In the aerosol generating product provided by the present application, the aerosol generated by the smoking segment 1 after being heated first enters the axially penetrating cavity 21 in the spoiler segment 2, is disturbed in the cavity 21, and then enters the mouthpiece segment 3; since the mouthpiece segment 3 is provided with at least one ventilation hole 4, external air can enter the mouthpiece segment 3 and mix with the aerosol, playing the role of spoiler and cooling, so that the temperature of the aerosol flowing out of the mouthpiece segment 3 meets the needs of consumers.

The aerosol generating product provided in the present application forms a combined ventilation structure in the airflow passage through the combination of the cavity 21 provided in the spoiler section 2 and the ventilation hole 4, taking into account both cooling and the transmission of effective substances in the aerosol, avoiding the problems of insufficient cooling effect or excessive condensation of the aerosol, and preventing local overheating of the cigarette and accumulation of condensate and other adverse consumer experiences.

In the present application, the spoiler section 2 is provided with an axially penetrating cavity 21, which means that the cavity 21 penetrates the spoiler section 2 in the axial direction, but the center line of the cavity 21 may or may not coincide with the center line of the spoiler section 21.

Preferably, the cross-sectional size and shape of the cavity 21 perpendicular to the axial direction are constant, or the cross-sectional size and/or shape vary.

The cross-sectional size and shape of the cavity 21 perpendicular to the axial direction can be constant or variable. When the smoke flows in the cavity 21 along the axial direction of the turbulent section, the change in the cross-sectional shape or area of the cavity 21 perpendicular to the axial direction will affect the aerosol flow, compress, expand, change, etc. the aerosol flow space, and achieve heating aerosol aggregation and turbulence, and initial nucleation, cooling and atomization.

It is preferred to adopt a solution of changing the cross-sectional size and/or shape, which can further enhance the turbulent flow effect and strengthen turbulent heat transfer.

When adopting the scheme of changing the size and/or shape of the cross section, only the size of the cross section may be changed, or the shape of the cross section may be changed while the size (area) remains constant; or both the size and shape of the cross section may be changed. The shape changes at the same time. The shape change can be from a circle to an ellipse or a square or any other shape.

The cross-sectional shape can be circular, square or any shape. When the cavity 21 with a constant cross-sectional size and shape is used, it can be set to be circular, and the spoiler section 2 is an O-shaped hollow structure.

Preferably, the wall thickness of the spoiler section 2 is 1 mm to 2 mm.

Preferably, the wall thickness of the spoiler section 2 is ≥1mm, that is, the distance between the inner wall of the cavity 21 and the outer wall of the spoiler section 2 is ≥1mm. Since the downstream of the spoiler section 2 is connected to the mouthpiece section 3 or further can be the transmission section 7, since the wall thickness of the spoiler section is 1mm to 2mm, and the ventilation area of the mouthpiece section 3 or the transmission section 7 is the entire cross-sectional area within the tipping paper or the shaping paper, when the outer diameter of the entire aerosol product is consistent, the ventilation area of the spoiler section 2 is smaller than that of the mouthpiece section 3 or the transmission section 7, then when the aerosol enters the next section from the spoiler section 2, the flow space thereof is further changed, thereby further disturbing the smoke.

The wall thickness of the spoiler section 2 is 1 mm to 2 mm, preferably 1.5 mm to 2 mm. A wall of a certain thickness can also prevent the movement of tobacco shreds, thereby preventing the displacement of tobacco shreds in the smoking section 1 from blocking the airflow path of the cigarette when contact center heating or a completely non-ordered tobacco structure is adopted.

The aerosol generating product provided in the present application has no special requirements for the heating method and heating device used, and can be heated by peripheral, central or non-contact heating methods.

Preferably, the cigarette holder segment 3 comprises a cigarette holder filament bundle 31 and a tipping paper 6 wrapped around the outer periphery of the cigarette holder filament bundle 31;

The ventilation holes 4 penetrate through the tipping paper 6 .

Preferably, a shaping paper 5 is further provided between the cigarette holder tow 31 and the tipping paper 6, and the ventilation degree of the shaping paper 5 is greater than 6000 CU.

Preferably, the mouthpiece segment 3 includes a mouthpiece strand 31, a tipping paper 6 wrapped around the outer periphery of the mouthpiece strand 31, and a ventilation hole 4 penetrates the tipping paper 6. The outside air can pass through the tipping paper 6 through the ventilation hole 4, which can give full play to the cooling effect of the outside air on the smoke, reduce the temperature of the mainstream aerosol, maintain the smoking quality, and also reduce the temperature of the outer wall of the cigarette, reduce the temperature of the mouthpiece, and prevent local overheating; at the same time, the strength of the tipping paper 6 ensures the strength of the cigarette.

Preferably, a shaping paper 5 is provided between the cigarette holder tow 31 and the tipping paper 6, and the shaping paper 5 is Style＞6000CU.

Each section of the cigarette is usually pre-produced and then spliced. For the convenience of the production process, the above-mentioned basic original rods with different structures are first wrapped with shaping paper 5 and then cut, and then the original rod units with different structures are wrapped with tipping paper 6 to form cigarettes; the inner core of each section can also be directly wrapped with tipping paper 6. Therefore, it is preferred that shaping paper 5 is further provided between the cigarette holder tow 31 and the tipping paper 6, and the ventilation degree of the shaping paper 5 is greater than 6000CU. The shaping paper 5 with high air permeability will not hinder the flow of air.

It is preferred that the tipping paper 6 is pre-punched before use, and online laser punching and other methods are avoided to prevent the internal cigarette holder tow 31 from being deformed at high temperature. The present invention adopts the above-mentioned more mature traditional tipping paper punching technology, which is conducive to reducing costs, reducing quality fluctuations caused by online processing, and improving production efficiency.

The cigarette holder tow 31 is preferably a low-density tow, preferably with a total denier of 32,000-36,000 d and a single denier of 7.3-22.

In the cigarette production process, different sections are wrapped into a whole cigarette using tipping paper 6. After the tipping paper 6 is wrapped, it needs to be glued and fixed. Generally, the tipping paper 6 is in contact with the tipping paper through a glue roller and then glue is applied. This is the glued area. The area where the tipping paper 6 is not glued is the glue-free area. In order to avoid the tipping paper and the shaping paper being glued and unable to ventilate, the ventilation holes 4 are preferably set in the glue-free area of the tipping paper 6. In addition, by controlling the size of the ventilation holes 4, the ventilation holes 4 can also be set in the glued area of the tipping paper 6.

Preferably, when the length of the mouthpiece segment 3 is ≥7 mm, the distance between the ventilation hole 4 and the mouth-containing end surface of the mouthpiece segment 3 is ≥6 mm;

When the length of the mouthpiece segment 3 is less than 7 mm, the ventilation hole 4 is provided at the connection between the mouthpiece segment 3 and the spoiler segment 2 .

According to the length of the mouthpiece segment 3, the distance between the ventilation hole 4 and the mouth-containing end face of the mouthpiece segment 3 is limited. When the length of the mouthpiece segment 3 is ≥7mm, the distance between the ventilation hole 4 and the mouth-containing end face of the mouthpiece segment 3 is ≥6mm, so as to avoid covering the ventilation hole 4 when the user holds the cigarette in his mouth. When the length of the mouthpiece segment 3 is <7mm, the ventilation hole 4 is arranged at the connection between the mouthpiece segment 3 and the spoiler segment 2, which is the farthest distance between the ventilation hole 4 arranged in the mouthpiece segment 3 and the user's mouth; combined with the conventional setting of the length of the mouthpiece segment 3 in the tobacco field, the need of not covering the ventilation hole 4 can also be met; or the ventilation hole 4 is arranged in conjunction with the spoiler segment 2 and/or the transmission segment 7, so that when the ventilation hole 4 of the mouthpiece segment 3 is blocked, there are still ventilation holes in other areas that can introduce air.

The applicant conducted an experiment and found that compared with a control product without any holes, the solution provided by the present application can reduce the smoke temperature by 1.5°C by only perforating the mouthpiece segment 3 (hole area 0.03mm2), and can reduce the smoke temperature by 3.8°C by only perforating the spoiler segment ² (hole area 0.03cm2). When both the mouthpiece segment 3 and the spoiler segment ² are perforated, the smoke temperature is reduced by 4.5°C.

The oral end face refers to the end face of the mouthpiece segment 3 extending into the user's oral cavity (i.e. the end face away from the end of the smoking segment 1).

Preferably, the mouthpiece segment 3 is provided with a plurality of ventilation holes 4 , and the plurality of ventilation holes 4 are arranged in a circle around the mouthpiece segment 3 .

Preferably, the mouthpiece segment 3 is provided with a plurality of ventilation holes 4, and the plurality of ventilation holes 4 are arranged in a circle around the mouthpiece segment 3 to introduce external air from all directions.

Preferably, the tipping paper 6 has a gram weight of ≥40 g/m ² .

The gram weight of the tipping paper 6 is preferably ≥ 40 g/m ² , so as to avoid wrinkles in the tipping paper or a decrease in the hardness of the cigarette after punching.

Preferably, the spoiler section 2 is provided with at least one ventilation hole 4 .

Preferably, the area of the ventilation hole 4 is 0.01 mm ² -0.10 mm ² .

In addition to setting ventilation holes 4 in the mouthpiece segment 3, at least one ventilation hole 4 can also be set in the spoiler segment 2. When smoking, ventilation can be achieved in conjunction with the ventilation holes 4 in the mouthpiece segment 3, and ventilation capacity can be maintained when the ventilation holes 4 in the mouthpiece segment 3 are blocked.

The ventilation holes 4 of both the mouthpiece segment and the spoiler segment 2 preferably have an area of 0.01 mm ² to 0.10 mm ² , and more preferably have an area of 0.03 mm ² to 0.04 mm ² .

Preferably, a transmission section 7 is further provided between the spoiler section 2 and the mouthpiece section 3 , and the transmission section 7 comprises a transmission section inner core 71 and a tipping paper 6 wrapped on the outside.

The aerosol generating product provided in the present application can still achieve acceptable mainstream aerosol and cigarette outer wall temperatures through the ventilation holes 4 provided in the mouthpiece section 3 and the natural cooling of the entire cigarette.

More preferably, a transmission section 7 is provided between the spoiler section 2 and the mouthpiece section 3, and the transmission section 7 includes a transmission section inner core 71 and an outer wrapped plugging paper 6. When the transmission section 7 is provided, the smoke has a longer flow path and the natural cooling effect is better.

The inner diameter of the cross section of the transmission section 7 is also larger than that of the spoiler section 2, which can also enhance turbulence and improve convective heat transfer.

Preferably, the inner core 71 of the transmission section is a porous rod made of a cooling material, or a paper hollow tube, or an acetate fiber bundle wrapped by a molding paper 5, and the ventilation degree of the molding paper 5 is greater than 6000CU.

It is more preferred that the transmission section 7 also has a cooling function. Through the combined cooling function of the transmission section 7 and the mouthpiece section 4, gradient cooling can be better achieved to maintain the smoking quality, and the temperature of the outer wall of the cigarette can be reduced, and the temperature of the mouthpiece can be reduced to prevent local overheating.

For example, the cooling function of the transmission section 7 is achieved by the following methods: first, the inner core 71 of the transmission section is set as a porous rod made of a cooling material, and the cooling material is used to absorb heat; second, the inner core 71 of the transmission section is set as a paper hollow tube, and the space and air in the hollow tube can cool the aerosol; third, the inner core 71 of the transmission section is set as an acetate fiber bundle wrapped by a molding paper 5, and the ventilation degree of the molding paper 5 is greater than 6000CU, and cooling is also performed by air.

Preferably, the outside of the porous rod or hollow tube is further wrapped with a plugging paper 5, the plugging paper 5 is located inside the tipping paper 6, and the ventilation degree is greater than 6000 CU.

The porous rod or paper hollow tube can be directly wrapped with the tipping paper 6 on the outside, or it can be first wrapped with the shaping paper 5 (shaping paper with ventilation degree>6000CU) and then wrapped with the tipping paper 6.

Preferably, the acetate tow wrapped by the shaping paper 5 is also provided with a hollow channel along the axial direction; the thickness of the acetate tow is 1mm to 2mm. Preferably, the acetate tow wrapped by the shaping paper 5 is also provided with a hollow channel along the axial direction, that is, there is no tow in the axial middle part of the acetate filter rod, and there is a circular "O" axial channel. When the hollow channel is provided; the thickness of the acetate tow is 1mm to 2mm (the thickness of the acetate tow along the radial direction with the O-shaped circle as the center), and the thickness of the acetate tow is limited to 1mm to 2mm, which can prevent the movement of tobacco shreds, thereby preventing the displacement of tobacco shreds in the smoking section 1 from blocking the airflow path of the cigarette when contact center heating or a completely non-ordered tobacco structure is adopted.

Preferably, when the inner core 71 of the transmission section is a hollow tube made of paper, the wall thickness of the transmission section 7 is 1 mm to 2 mm.

Similarly, when the transmission section inner core 71 is a paper hollow tube, the wall thickness of the transmission section 7 is 1mm to 2mm, which can prevent the movement of tobacco. When the transmission section inner core 71 is a porous rod, the entire transmission section 7 is filled with porous materials, and the wall thickness is no longer limited.

Preferably, the tipping paper 6 of the transport section 7 is provided with at least one ventilation hole 4;

When the inner core 71 of the transmission section is a paper hollow tube, the hollow tube is provided with ventilation holes 4 on the tipping paper 6. Through holes at corresponding positions.

Preferably, the tipping paper 6 of the transmission section 7 is provided with at least one ventilation hole 4 to further increase air flow and enhance the cooling effect. When the transmission section inner core 71 is a paper hollow tube, in order to allow air to enter the hollow tube, the hollow tube needs to be provided with a through hole at a position corresponding to the ventilation hole 4 on the tipping paper 6.

When a paper hollow tube is used and the shaping paper 5 is not provided, the tipping paper 6 can be wrapped and then holes can be punched through the tipping paper 6 and the hollow tube by laser or physical methods, thereby ensuring accurate hole alignment.

Preferably, when the inner core 71 of the transmission section is a paper hollow tube or an acetate fiber bundle wrapped by a molding paper 5, the ventilation hole 4 is located in the middle of the transmission section 7;

When the transmission section inner core 71 is a porous rod made of a cooling material, the ventilation hole 4 is located on a side of the transmission section 7 close to the cigarette holder section 3 .

According to the different materials used for the transmission section inner core 71, the ventilation holes 4 are preferably arranged at different positions of the transmission section 7. It is preferred to select a suitable punching position according to the wall thickness of the material to facilitate the laser punching operation. When the transmission section inner core 71 is a paper hollow tube or an acetate fiber bundle wrapped with a molding paper 5, the ventilation holes 4 are located in the middle of the transmission section 7; when the transmission section inner core 71 is a porous rod made of a cooling material, the ventilation holes 4 are located on the side of the transmission section 7 close to the mouthpiece section 3.

Preferably, the area of the ventilation hole 4 is 0.01 mm ² -0.10 mm ² .

When the transport section 7 is provided with ventilation holes 4, the area of the holes is preferably 0.01 mm ² to 0.10 mm ² , and more preferably 0.03 mm ² to 0.04 mm ² .

Preferably, a plurality of ventilation holes 4 are provided, and the plurality of ventilation holes 4 are circumferentially arranged in a circle around the transmission section 7 .

The transmission section 7 may also be provided with a plurality of ventilation holes 4 arranged in a circle around the transmission section 7 .

The above description of the disclosed embodiments enables one skilled in the art to implement or use the present invention. Various modifications to these embodiments will be apparent to one skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention will not be limited to the embodiments shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

Claims (19)

An aerosol generating product, characterized in that it comprises a smoke generating section (1), a flow turbulence section (2) and a mouthpiece section (3) connected in sequence, The spoiler section (2) is provided with a cavity (21) which penetrates in the axial direction; The mouthpiece segment (3) is provided with at least one ventilation hole (4), and the ventilation hole (4) is used to introduce external air into the mouthpiece segment (3). The aerosol generating article according to claim 1 is characterized in that the cross-sectional size and shape of the cavity (21) perpendicular to the axial direction are constant, or the cross-sectional size and/or shape vary. The aerosol generating product according to claim 2 is characterized in that the wall thickness of the spoiler section (2) is 1 mm to 2 mm. The aerosol generating article according to any one of claims 1 to 3, characterized in that the mouthpiece segment (3) comprises a mouthpiece filament bundle (31), and a tipping paper (6) wrapped around the outer periphery of the mouthpiece filament bundle (31); The ventilation hole (4) penetrates the tipping paper (6). The aerosol generating product according to claim 4 is characterized in that a plugging paper (5) is further provided between the cigarette holder tow (31) and the tipping paper (6), and the ventilation degree of the plugging paper (5) is greater than 6000 CU. The aerosol generating product according to claim 4, characterized in that when the length of the mouthpiece segment (3) is ≥7 mm, the distance between the ventilation hole (4) and the mouth-containing end surface of the mouthpiece segment (3) is ≥6 mm; When the length of the mouthpiece section (3) is less than 7 mm, the ventilation hole (4) is arranged at the connection between the mouthpiece section (3) and the spoiler section (2). The aerosol generating article according to claim 4, characterized in that the mouthpiece segment (3) is provided with a plurality of ventilation holes (4), and the plurality of ventilation holes (4) are arranged in a circle around the mouthpiece segment (3). The aerosol-generating product according to claim 4, characterized in that the grammage of the tipping paper (6) is ≥ 40 g/m ² . The aerosol generating article according to claim 1, characterized in that the spoiler section (2) is provided with at least one ventilation hole (4). The aerosol generating article according to claim 9, characterized in that the area of the ventilation holes (4) is 0.01 mm ² to 0.10 mm ² . The aerosol generating article according to any one of claims 1 to 3 and 5 to 10, characterized in that The feature of the invention is that a transmission section (7) is provided between the spoiler section (2) and the mouthpiece section (3), and the transmission section (7) comprises a transmission section inner core (71) and a plugging paper (6) wrapped on the outer side. The aerosol generating product according to claim 11 is characterized in that the inner core (71) of the transmission section is a porous rod made of a cooling material, or a hollow tube made of paper, or an acetate fiber bundle wrapped by a molding paper (5), and the ventilation degree of the molding paper (5) is greater than 6000CU. The aerosol generating product according to claim 12 is characterized in that the outer side of the porous rod or the hollow tube is also wrapped with a shaping paper (5), the shaping paper (5) is located on the inner side of the tipping paper (6), and the ventilation degree is greater than 6000CU. The aerosol generating product according to claim 12 is characterized in that the acetate fiber bundle wrapped by the shaping paper (5) is also provided with a hollow channel along the axial direction; the thickness of the acetate fiber bundle is 1 mm to 2 mm. The aerosol generating product according to claim 12 is characterized in that when the inner core (71) of the transmission section is a hollow tube made of paper, the wall thickness of the transmission section (7) is 1 mm to 2 mm. An aerosol-generating article according to any one of claims 12 to 15, characterised in that the tipping paper (6) of the transfer section (7) is provided with at least one ventilation hole (4); When the inner core (71) of the transmission section is a paper hollow tube, the hollow tube is provided with through holes at positions corresponding to the ventilation holes (4) on the tipping paper (6). The aerosol generating product according to claim 16, characterized in that when the inner core (71) of the transmission section is a hollow tube made of paper or a bundle of acetate fibers wrapped with a forming paper (5), the ventilation hole (4) is located in the middle of the transmission section (7); When the inner core (71) of the transmission section is a porous rod made of a cooling material, the ventilation hole (4) is located on a side of the transmission section (7) close to the cigarette holder section (3). The aerosol-generating article according to claim 16, characterized in that the area of the ventilation holes (4) is 0.01 mm ² to 0.10 mm ² . The aerosol generating article according to claim 16 is characterized in that a plurality of ventilation holes (4) are provided, and the plurality of ventilation holes (4) are arranged in a circle around the transmission section (7).