Aerosol generating product

Abstract

The utility model discloses an aerosol generating product which comprises a wrapping layer, an aerosol generating section, a supporting section and a filtering section, the aerosol generating section, the supporting section and the filtering section are sequentially arranged in the wrapping layer in the axial direction, the supporting section is in a hollow tube shape, the filtering section comprises a filter element and an air layer located between the filter element and the wrapping layer, and the air layer comprises a plurality of groove channels extending in the axial direction. The supporting section is provided with a first end face connected with the filtering section, the air layer is provided with a second end face connected with the supporting section, the radial thickness of the first end face is larger than that of the second end face in the radial direction of the aerosol generating product, and the projection of the second end face on the first end face is located in the outline range of the first end face. According to the utility model, the temperature of aerosol can be reduced, the problem that the side wall of an aerosol generating product scalds a mouth is solved, and the smoking experience of a user is improved.

Description

Technical Field

[0001] This utility model relates to the field of heated non-combustible cigarette technology, and in particular to an aerosol-generating product. Background Technology

[0002] As consumers become increasingly health-conscious and demand more personalized experiences with cigarette products, the tobacco industry is constantly responding to these evolving needs by developing various smoking products with reduced tar and harm. Among these, heated cigarettes, due to their unique heating method compared to traditional cigarettes, offer a healthier smoking experience while satisfying consumers' sensory desires.

[0003] Heated cigarettes generate aerosols by heating the aerosol-generating matrix of the aerosol-forming product. The main components of the aerosol smoke from heated cigarettes include smoke-generating agents, nicotine, moisture, and flavoring components, formed by evaporation and condensation upon heating. Its effective components and smoke retention capacity are relatively weaker than those of traditional cigarettes. Therefore, it is necessary to reduce the filtration efficiency of the filter, resulting in a shorter overall cigarette length and a higher proportion of empty tubes in the cigarette's structure. However, this cigarette design leads to excessively high aerosol temperatures, causing problems such as scalding of the mouthpiece and affecting the user experience. Utility Model Content

[0004] The purpose of this invention is to solve the problem of the sidewall surface of aerosol-generating products easily burning the mouth. This invention provides an aerosol-generating product that improves the problem of the sidewall burning the mouth, thus enhancing the user's inhalation experience.

[0005] To solve the above-mentioned technical problems, the present invention provides an aerosol generating article, including an encapsulation layer and an aerosol generating section, a support section, and a filter section arranged sequentially along the axial direction within the encapsulation layer. The support section is a hollow tube, and the filter section includes a filter element and an air layer located between the filter element and the encapsulation layer. The air layer includes a plurality of grooved channels extending along the axial direction. The support section has a first end face connected to the filter section, and the air layer has a second end face connected to the support section. In the radial direction of the aerosol generating article, the radial thickness of the first end face is greater than the radial thickness of the second end face, and the projection of the second end face onto the first end face is located within the contour range of the first end face.

[0006] According to another specific embodiment of the present invention, the radial thickness of the first end face is at least 1.1 times greater than the radial thickness of the second end face.

[0007] According to another specific embodiment of the present invention, the radial thickness of the second end face is 0.3mm-1.5mm.

[0008] According to another specific embodiment of the present invention, the ratio of the radial thickness of the second end face to the width at the maximum width of the groove channel ranges from 1 to 2.

[0009] According to another specific embodiment of this utility model, the air layer is formed by rolling a corrugated thin film material, the basis weight of which is 60 g / m³. 2 -150g / m 2 .

[0010] According to another specific embodiment of the present invention, the cross-sectional shape of the groove channel includes one or more of the following: arc-shaped, V-shaped, U-shaped, and trapezoidal.

[0011] According to another specific embodiment of the present invention, the pipe wall of the support section is provided with multiple ventilation holes.

[0012] According to another specific embodiment of the present invention, a plurality of ventilation holes are evenly arranged along the circumference of the support section.

[0013] According to another specific embodiment of this utility model, the diameter of the ventilation hole is 0.15mm-0.60mm, and / or the total area of ​​multiple ventilation holes is less than or equal to 2mm². 2 .

[0014] According to another specific embodiment of the present invention, the filter element is made of cellulose acetate.

[0015] Compared with the prior art, the present invention has the following beneficial effects:

[0016] This application incorporates an air layer with multiple grooved channels between the filter element and the wrapping layer. This air layer acts as a lateral heat insulation layer, reducing radial heat transfer and thus lowering the temperature of the outer wall of the aerosol-generating product, alleviating the problem of scalding the nozzle from the sidewall. Furthermore, by setting the radial thickness of the second end face of the air layer to be less than the radial thickness of the first end face of the support section, and ensuring that the projection of the second end face onto the first end face falls within the contour range of the first end face, this application prevents aerosols flowing from the support section from flowing laterally through the air layer, thereby ensuring that all aerosols flowing from the support section pass through the filter element. Passing through the filter element reduces the aerosol temperature, further lowering the temperature of the outer wall of the aerosol-generating product and improving the user's suction experience. Attached Figure Description

[0017] Figure 1 An axial cross-sectional view of an aerosol-generating article provided in an embodiment of the present invention is shown.

[0018] Figure 2 This shows a radial cross-sectional view of a filter section provided in an embodiment of the present invention;

[0019] Figure 3 A cross-sectional view of aerosol-generated product sample 1 is shown;

[0020] Figure 4 A cross-sectional view of aerosol-generated product sample 2 is shown;

[0021] Figure 5 A cross-sectional view of aerosol-generated product sample 4 is shown. Detailed Implementation

[0022] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0023] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0024] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0025] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0026] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0027] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0028] like Figure 1 and Figure 2 As shown, Figure 1 This is an axial sectional view of an aerosol-generated product provided in an embodiment of the present invention. Figure 2 This is a radial cross-sectional view of the filter section 3 provided in an embodiment of the present invention. In this embodiment, the aerosol generating article includes an encapsulation layer and an aerosol generating section 1, a support section 2, and a filter section 3 arranged sequentially along the axial direction within the encapsulation layer. The support section 2 is a hollow tubular shape. The filter section 3 includes a filter element 31 and an air layer 32 located between the filter element 31 and the encapsulation layer. The air layer 32 includes a plurality of axially extending groove channels 33. The support section 2 has a first end face connected to the filter section 3, and the air layer 32 has a second end face connected to the support section 2. In the radial direction of the aerosol generating article, the radial thickness of the first end face (e.g., ...) is... Figure 1 The dimension Dc shown in the figure is greater than the radial thickness of the second end face (as shown in the figure). Figure 1 The size D in 32 As shown), and the projection of the second end face onto the first end face is within the contour range of the first end face.

[0029] By employing the above technical solution, this application provides an air layer 32 with multiple grooved channels 33 between the filter element 31 and the wrapping layer. This air layer 32 acts as a lateral heat insulation layer to reduce radial heat transfer, thereby lowering the temperature of the outer wall of the aerosol-generated product and improving the problem of hot lips from the side wall. Furthermore, by setting the radial thickness of the second end face of the air layer 32 to be less than the radial thickness of the first end face of the support section 2, and ensuring that the projection of the second end face onto the first end face falls within the contour range of the first end face, this application prevents aerosols flowing from the support section 2 from flowing laterally through the air layer 32, thus ensuring that all aerosols flowing from the support section 2 pass through the filter element 31. Passing through the filter element 31 reduces the temperature of the outlet aerosol, further lowering the temperature of the outer wall of the aerosol-generated product and improving the user's suction experience.

[0030] Specifically, the wrapping layer is a paper layer used to form products from heated non-combustible aerosols.

[0031] The aerosol generation section 1 is used to generate aerosols during use, and its filling materials include tobacco materials, smoke-generating agents, and flavorings.

[0032] Following the aerosol flow direction, the generated aerosol passes sequentially through support section 2 and filter section 3. The main function of support section 2 is to provide the aerosol-generated product with sufficient strength, preventing structural deformation caused by external force or drops, and also to provide a degree of cooling for the generated aerosol. Support section 2 is a hollow tubular structure, and optionally, it can consist of a single segment or multiple segments. When support section 2 consists of multiple segments, the radial thickness of each segment can be set to be the same or different, depending on the specific application.

[0033] The filter section 3 is divided into an air layer 32 and a solid filter element 31 from the outside to the inside of the circumference. By setting the solid filter element structure, it can filter out harmful substances in aerosols to a certain extent, reducing their harm to consumers. At the same time, after intercepting part of the aerosols, it can further reduce the temperature of the aerosols when they enter the consumer's mouth, improving the comfort of inhalation.

[0034] In this embodiment, to prevent aerosols flowing from the support section 2 from flowing laterally through the air layer 32, the radial thickness of the first end face of the support section 2 is greater than the radial thickness of the second end face of the air layer 32, i.e., Dc > D. 32 Where Dc represents the radial thickness (i.e., the annular wall thickness of the first end face of the support segment 2) , D 32 The radial thickness (i.e., the annular wall thickness of the second end face) of the air layer 32 is indicated, and the projection of the second end face onto the first end face is located within the contour range of the first end face, thereby ensuring that aerosols pass through the solid filter element 31. The air layer 32 serves as a lateral heat insulation layer to reduce radial heat transfer, thereby lowering the side wall temperature of the external aerosol generation product, improving the problem of hot mouthpieces on the side walls of the aerosol generation product, and enhancing the user's suction experience.

[0035] Furthermore, to avoid radial deviation caused by process variations, the radial thickness of the first end face must be at least 1.1 times greater than the radial thickness of the second end face. That is, Dc > 1.1D 32 .

[0036] Furthermore, the radial thickness D of the second end face 32 The thickness ranges from 0.3mm to 1.5mm.

[0037] The air layer 32 has a certain thickness in the radial direction. If the radial thickness of the second end face is too large, the cross-sectional area of ​​the filter element 31 will be reduced, affecting the outlet aerosol temperature; if the radial thickness is too small, the air layer 32 will not be able to perform its heat insulation and cooling function. Preferably, the radial thickness D of the second end face... 32 The thickness ranges from 0.5mm to 1.2mm.

[0038] Furthermore, the radial thickness of the second end face is related to the width at the maximum width of the groove channel 33 (e.g., Figure 2 The size D in w The ratio of the two (as shown) ranges from 1 to 2.

[0039] This technical solution maintains the stability of the shape of the filter section 3, preventing structural deformation caused by external force or dropping. If the width of the groove channel 33 is too large, the air layer 32 will lack sufficient strength and will not be able to maintain the shape stability of the filter section 3 under certain lateral external forces; if the width of the groove channel 33 is too small, the air layer 32 will lack sufficient axial strength in the aerosol-generated product, and will also result in excessive material consumption and waste. Preferably, the ratio of the radial thickness of the second end face of the air layer 32 to the width at the maximum width of the groove channel 33 is in the range of 1.3-1.8.

[0040] Furthermore, such as Figure 3 As shown, in this embodiment, the air layer 32 is formed by rolling a corrugated thin film material, the basis weight of which is 60 g / m³. 2 -150g / m 2 .

[0041] Specifically, a wavy thin film material is rolled into a cylindrical shape and placed between the filter element 31 and the outer wrapping layer, thereby forming multiple groove channels 33 between the filter element 31 and the wrapping layer. Using the above technical solution, the thin film material used to make the air layer 32 has a certain quantity, enabling the thin film material to have a certain strength, preventing deformation under external force, while maintaining a certain degree of processability, such as shaping it into a circle.

[0042] Optionally, the basis weight of the thin film material is 100 g / m³. 2 -120g / m 2 .

[0043] In one embodiment of this utility model, the film material is corrugated paper.

[0044] Furthermore, such as Figure 2 As shown, the cross-sectional shape of the groove channel 33 includes one or more of the following: arc, V, U and trapezoid.

[0045] Furthermore, the support section 2 has multiple ventilation holes 21 on its pipe wall.

[0046] By using this technical solution, multiple ventilation holes 21 are set on the pipe wall of the support section 2, and lower-temperature air from the outside can be introduced from the support section 2 during the suction process. This can further reduce the aerosol temperature at the outlet of the filter section 3, thereby improving the suction experience, while improving the amount of aerosol released at the outlet.

[0047] In this embodiment, the support section 2 is a hollow tube. To ensure smooth entry of external gas, multiple ventilation holes 21 are provided on the tube wall of the support section 2. During suction, a negative pressure is formed between the support section 2 and the aerosol generation section 1 and the ventilation holes 21. The aerosol generated by the aerosol generation section 1 and the external air flowing in from the ventilation holes 21 converge in the support section 2. The external air flowing into the support section 2 from the ventilation holes 21 impacts the aerosol inside the support section 2, forming gas heat exchange and reducing the aerosol temperature. On the other hand, the external air impacts the aerosol from a circumferential direction, which helps the aerosol to converge in the center of the cavity, reducing the deposition of particulate matter in the aerosol in the support section 2, thereby reducing the retention of effective components of the aerosol by the support section 2.

[0048] Optionally, multiple ventilation holes 21 are evenly arranged along the circumference of the support section 2.

[0049] This technical solution makes aerosol heat exchange more uniform and thorough.

[0050] Furthermore, the diameter of the ventilation hole 21 is 0.15mm-0.60mm, and / or the total area of ​​the plurality of ventilation holes 21 is less than or equal to 2mm². 2 .

[0051] If the total area of ​​the ventilation holes 21 is too large, the amount of air flowing in from the outside will be too large, diluting the aerosol and thus affecting the release of the active ingredients.

[0052] Furthermore, filter element 31 is made of cellulose acetate.

[0053] Using this technical solution, filter element 31 is used to filter large particles and harmful substances in aerosols, reducing harm to the inhaler, while further cooling the aerosol.

[0054] The features and performance of this utility model will be further described in detail below with reference to specific embodiments.

[0055] To facilitate comparison between samples, all samples and control samples in the following embodiments are configured to include a coating layer and an aerosol generating section 1, a support section 2, and a filter section 3 connected sequentially along the axial direction, all wrapped by the coating layer. The aerosol generating section 1 is 12 mm long and filled with rolled tobacco sheets. The support section 2 is a hollow tube with a length of 25 mm and a radial wall thickness of 1.0 mm. The filter element 31 of the filter section 3 is a solid core made of cellulose acetate and is 8 mm long.

[0056] Example

[0057] The structure of sample 1 of the aerosol-generating article in the embodiment is as follows: Figure 3 As shown, the filter section 3 of sample 1 includes a filter element 31 and an air layer 32 located between the filter element 31 and the encapsulation layer. The air layer 32 includes a plurality of grooved channels 33 extending axially. The radial thickness D of the air layer 32 is... 32 The diameter is 0.8 mm. The cross-sectional shape of the groove channel 33 is "V". The ratio of the radial thickness of the air layer 32 to the width at the maximum width of the groove channel 33 is 1.6. The air layer 32 is made of corrugated paper with a basis weight of 120 g / m². 2 .

[0058] The structure of sample 2 of the aerosol-generating product in the embodiment is as follows: Figure 4 As shown, a ventilation hole 21 is provided at the axial middle position of the support section 2 of sample 2. The diameter of a single ventilation hole 21 is 0.5 mm, and there are 5 holes, which are evenly distributed on the circumference.

[0059] The structure of sample 3 of the aerosol-generated product in the embodiment is as follows: Figure 1 As shown, the filter section 3 of sample 3 includes a filter element 31 and an air layer 32 located between the filter element 31 and the wrapping layer. A ventilation hole 21 is provided at the axial center of the support section 2. Each ventilation hole 21 has a diameter of 0.5 mm, and there are 5 holes evenly distributed around the circumference. The air layer 32 includes multiple axially extending groove channels 33, and the radial thickness D of the air layer 32 is... 32 The diameter is 0.8 mm. The cross-sectional shape of the groove channel 33 is "V". The ratio of the radial thickness of the air layer 32 to the width at the maximum width of the groove channel 33 is 1.6. The air layer 32 is made of corrugated paper with a basis weight of 120 g / m². 2 .

[0060] control sample

[0061] The structure of sample 4, the aerosol-generated product of the control sample, is as follows: Figure 5 As shown, the filter section 3 includes a solid filter element 31 made of cellulose acetate.

[0062] Suction test and effect comparison

[0063] The aforementioned aerosol-generating products were used in conjunction with heating devices. To ensure consistency in the inhalation conditions when comparing the effects of different aerosol-generating product samples, a smoking machine was used for testing under specific parameters. One inhalation method is described below: The aerosol-generating products were placed in the same heating device for inhalation. The specific parameters of the smoking machine were: inhalation capacity 55.0 mL, inhalation frequency 30.0 s, single puff duration 2.0 s, and a bell-shaped inhalation curve. Each cigarette was inhaled 8 times. A 44 mm Cambridge filter was used to capture the exit aerosol during the inhalation process of each sample, and the mass difference of the Cambridge filter before and after aerosol capture was calculated as the aerosol capture amount for each sample. Furthermore, the Cambridge filter with captured aerosol was extracted, and the nicotine content was detected using gas chromatography as the nicotine release amount in the aerosol of each sample. High aerosol capture and nicotine release indicate that the effective components in the material can be effectively released, and filtration has a small effect on aerosol retention.

[0064] To compare consumers' temperature perception when inhaling aerosol-generating products, the temperature was measured using the thermocouple method. During the use of the aerosol-generating product with a smoking device, a thermocouple was placed 1 mm (+1 mm, along the airflow direction) from the outlet of filter section 3 to detect the aerosol outlet temperature. The highest temperature at this location during inhalation was recorded as T1. A thermocouple was also placed on the outer surface of the aerosol-generating product, 9 mm (-9 mm, opposite to the airflow direction) forward from the outlet of filter section 3, to detect the outer wall temperature during use. The highest temperature at this location during inhalation was recorded as T2. Lower measured temperatures indicate that filter section 3 has a better cooling effect, resulting in a better user experience.

[0065] Using the same heating appliance and the above testing method, the highest heating temperature was 300℃, the preheating time was 15s, and the heating duration was 365s. The effects of several samples were compared, and the results are shown in the table below:

[0066] Table 1 compares the test results of samples 1-3 in the examples and sample 4 in the control sample.

[0067]

[0068] As shown in the table above, the aerosol-generating product provided by this invention can effectively reduce the outlet aerosol temperature during use, especially the sidewall temperature, thus improving the problem of burning the mouth and lips caused by excessively high temperatures. Simultaneously, this invention also contributes to increasing aerosol capture and nicotine release. Based on the combined temperature and release test results, this invention further improves the consumer experience of aerosol-generating products.

[0069] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An aerosol-generating product, characterized in that, The aerosol generating section (1), support section (2), and filter section (3) are arranged sequentially along the axial direction within the encapsulation layer. The support section (2) is a hollow tubular structure. The filter section (3) includes a filter element (31) and an air layer (32) located between the filter element (31) and the encapsulation layer. The air layer (32) includes a plurality of groove channels (33) extending along the axial direction. The support section (2) has a first end face connected to the filter section (3), and the air layer (32) has a second end face connected to the support section (2). In the radial direction of the aerosol generating article, the radial thickness of the first end face is greater than the radial thickness of the second end face, and the projection of the second end face onto the first end face is located within the contour range of the first end face.

2. The aerosol-generating product according to claim 1, characterized in that, The radial thickness of the first end face is at least 1.1 times greater than the radial thickness of the second end face.

3. The aerosol-generating product according to claim 1, characterized in that, The radial thickness of the second end face is 0.3mm-1.5mm.

4. The aerosol-generating product according to claim 1, characterized in that, The ratio of the radial thickness of the second end face to the width at the maximum width of the groove channel (33) is in the range of 1-2.

5. The aerosol-generating product according to claim 1, characterized in that, The air layer (32) is made of a corrugated thin film material with a basis weight of 60 g / m³. 2 -150g / m 2 .

6. The aerosol-generating product according to claim 1, characterized in that, The cross-sectional shape of the groove channel (33) includes one or more of the following: arc, V, U and trapezoid.

7. The aerosol-generating product according to claim 1, characterized in that, The support section (2) has multiple ventilation holes (21) on its pipe wall.

8. The aerosol-generating product according to claim 7, characterized in that, The plurality of ventilation holes (21) are evenly arranged along the circumference of the support section (2).

9. The aerosol-generating article according to claim 7 or 8, characterized in that, The diameter of the ventilation hole (21) is 0.15mm-0.60mm, and / or the total area of ​​the plurality of ventilation holes (21) is less than or equal to 2mm². 2 .

10. The aerosol-generating product according to claim 1, characterized in that, The filter element (31) is made of cellulose acetate.

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