A groove tobacco-carrier core member, a method of manufacturing the same, and an aerosol generating article including the same

Abstract

The application discloses a groove cigarette core component, a preparation method thereof and an aerosol generating article containing the groove cigarette core component. The groove cigarette core component comprises a forming paper (21), a groove corrugated layer (22) and a cigarette core rod (23). The groove corrugated layer (22) and the cigarette core rod (23) are provided with a functional coating. The functional coating contains a porous material, a bonding medium and a flavoring substance. The functional coating contains the bonding medium, and the bonding medium comprises anhydrous ethanol and a bonding agent. The bonding medium is in a liquid state at normal temperature, so that the porous material, the flavoring substance and the smoking substance can be dispersed in the bonding medium without heating the bonding medium. Accordingly, the functional coating does not need to be heated during the coating process, so that the volatilization of the essence and spices during the preparation and application of the functional coating is prevented.

Description

Technical Field

[0001] This invention relates to the field of heated cigarette technology, specifically to a grooved cigarette core component, its preparation method, and an aerosol generating product containing the same. 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 requirements. However, maintaining the aroma persistence of heated cigarettes and enhancing their flavor during production remains a significant technical challenge for the tobacco industry.

[0003] Currently, adding flavoring gels to the support, cooling, or filter sections of cigarettes is a common method for enhancing the flavor of heated tobacco products (HTMS). Flavoring gels are solid at low temperatures and liquid at high temperatures. This property allows for the preparation and coating of flavoring gels in their liquid state, while maintaining a solid state within the cigarette at low temperatures. However, existing flavoring gel systems have the following problems: 1. During the preparation of flavoring gels, the gel system must first be heated to above 100°C to liquefy it, facilitating the addition and dissolution of flavorings. However, excessively high temperatures can cause the flavorings to evaporate, reducing their content in the flavoring gel. 2. To ensure the flavoring gel remains liquid throughout the coating process, it needs to be heated, resulting in the flavorings being in a volatile state throughout the entire coating process. In other words, to facilitate the dissolution of flavorings and the coating of flavoring gels, the gel system must be heated. However, the increased temperature after heating causes flavorings to escape more easily from the gel, creating a dilemma of temperature control. 3. Currently, the solvent in flavoring gels is water. Therefore, after coating with the flavoring gel, it needs to be dried again to evaporate the water solvent in the gel system. However, the increased temperature during drying not only causes water evaporation but also causes flavorings to evaporate along with the water. These problems result in the flavoring effect of cigarettes being significantly reduced by the time they reach consumers.

[0004] Therefore, how to develop a new type of aroma-enhancing technology for heated tobacco products that can improve the aroma enhancement effect and reduce the production cost while ensuring the longevity of the cigarette aroma has become an urgent problem to be solved in the tobacco industry.

[0005] To address the above problems, this invention is proposed. Summary of the Invention

[0006] The present invention aims to solve the above-mentioned problems by improving the preparation process and formula of flavoring additives, so as to realize the addition of flavorings and fragrances and the coating of flavoring coatings at low temperature, thereby reducing the volatilization of flavorings and fragrances during the flavoring process, improving the flavoring effect of heated non-combustible cigarettes, and providing technical support for the sustainable development of the tobacco industry.

[0007] The first aspect of the present invention provides a grooved cigarette core component, which includes a forming paper 21, a grooved corrugated layer 22 and a cigarette core rod 23; a functional coating is provided between the grooved corrugated layer 22 and the cigarette core rod 23, the functional coating comprising a porous material, an adhesive medium and an aroma-enhancing substance.

[0008] Preferably, the flavoring substances include menthol, ionone, ethyl maltol, vanillin, rose essential oil flavoring, or tobacco extract or nicotine salt;

[0009] Preferably, the porous material includes activated carbon, inorganic materials such as ceramic molecular sieves, organic materials such as polymers, or natural porous materials from plants.

[0010] Preferably, the adhesive medium comprises anhydrous ethanol and an adhesive, wherein the adhesive is an adhesive having adhesive properties, including at least one of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone-based substances, ethyl cellulose, modified starch, polyvinyl alcohol, shellac, gelatin, guar gum, and carob gum. Anhydrous ethanol is used as the alcohol solvent.

[0011] Preferably, the tobacco core rod 23 is a disordered aggregated reconstituted tobacco leaf strip or a disordered aggregated pleated reconstituted tobacco leaf material, or other forms of tobacco core rod in the art.

[0012] Preferably, the functional coating further includes a smoking substance, which includes one or more of glycerol or propylene glycol.

[0013] Preferably, the forming paper 21 has a seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions on the side near the grooved corrugated layer 22;

[0014] Preferably, the wall thickness of the grooved corrugated layer 22 is 0.5-2.0 mm;

[0015] Preferably, the groove shape of the groove corrugated layer 22 is "V" or "U".

[0016] Preferably, the porous material is activated carbon, and the mesh size of the activated carbon is 80-300 mesh.

[0017] A second aspect of the present invention provides a method for preparing the grooved cigarette core component described in the first aspect of the present invention, comprising the following steps:

[0018] S1, using porous materials to adsorb fragrance-enhancing substances, then adding the porous materials adsorbed with fragrance-enhancing substances to the adhesive medium and stirring to obtain a functional coating;

[0019] S2, apply the functional coating obtained in step S1 onto the grooved corrugated layer to obtain a grooved corrugated layer 22 with a functional coating;

[0020] S3, the grooved corrugated layer 22 with a functional coating is rolled into a tube using forming paper 21, and a wick rod 23 is placed in the cavity enclosed by the grooved corrugated layer 22. This process can be carried out by directly rolling the wick rod into the cavity of the grooved corrugated layer while the forming paper is rolling the grooved corrugated layer into a tube, or by filling the cavity with wick rod after the forming paper has rolled the grooved corrugated layer into a tube, or by directly filling the cavity with smoking material and then forming the wick rod under certain conditions.

[0021] Preferably, the functional coating further includes a smoking substance, which includes one or more of glycerol or propylene glycol;

[0022] Preferably, based on mass percentage, the functional coating comprises 40-60% porous material adsorbed with functional substances, 30-50% adhesive medium, and 1-10% fuming substance; the mass ratio of adhesive to anhydrous ethanol in the adhesive medium is 1:5-1:20. This specific ratio is intended to control the viscosity of the functional coating, ensuring it maintains a moderate viscosity during the coating process. During coating, a flow valve is connected to the sealed container containing the functional coating to control the application amount. Therefore, the viscosity of the functional coating must be moderate. If it is too thin, the flow rate will be too fast and difficult to control, resulting in excessive coating. However, if it is too thick, the coating will be uneven. In actual preparation, if the functional coating is too thin, the amount of porous material is increased; if the functional coating is too thick, the amount of fuming substance or anhydrous ethanol in the adhesive medium is increased. The fuming substance is mentioned again here; in this functional coating system, it serves to increase the amount of smoke and control the viscosity of the system. Furthermore, if the functional coating is very viscous, prioritize increasing the amount of propylene glycol; if the functional coating is only slightly viscous, prioritize increasing the amount of glycerol.

[0023] Preferably, in step S1, a porous material is used to adsorb the fragrance-enhancing substance, and then the porous material with the adsorbed fragrance-enhancing substance is added to the adhesive medium, and then a smoking substance is added to it and stirred to obtain a functional coating.

[0024] Preferably, in step S1, anhydrous ethanol and adhesive are first mixed to prepare an adhesive medium for later use. The mixture of flavoring agent, porous material, and adhesive medium is called a functional coating. After being coated onto the grooved corrugated layer and dried, the anhydrous ethanol in the adhesive medium evaporates, and the functional coating becomes drier and more solidified.

[0025] Preferably, in step S2, the amount of the functional coating applied to the groove corrugated layer 22 is 0.1-10 mg / mm;

[0026] Preferably, the container holding the functional coating in the coating equipment needs to be sealed. This is because the adhesive medium for the functional coating includes anhydrous ethanol and an adhesive, and anhydrous ethanol has a relatively low evaporation point. This means that if the container is not sealed, anhydrous ethanol will evaporate from the container during the coating process. After the anhydrous ethanol in the functional coating evaporates, the functional coating will gradually lose its fluidity, become drier and solidified, and thus cannot be coated further. Therefore, in order to maintain the fluidity of the functional coating, the container holding the functional coating in the coating equipment must be sealed.

[0027] Preferably, the fragrance loading capacity of the porous material is determined based on the pore properties and adsorption time of the porous material itself, and is further determined by combining the flow state of the final fragrance loading system.

[0028] A third aspect of the present invention provides an aerosol generating article comprising the grooved cigarette core as described in the first aspect of the present invention, the aerosol generating article comprising an outer packaging 1, and the grooved cigarette core 2, an empty tube 3, and a filter 4 located within the outer packaging 1.

[0029] Preferably, the hollow tube 3 is selected from, but not limited to, paper tubes, non-woven fabric tubes, or cellulose acetate bundles.

[0030] Preferably, the empty pipe 3 has a vent hole 31 that penetrates the empty pipe 3. The empty pipe 3 may or may not need to be provided with a vent hole 31 that penetrates the pipe wall of the empty pipe 3, depending on the actual situation.

[0031] Preferably, the hollow tube 3 further contains a functional material; and / or

[0032] The inner wall of the hollow pipe fitting 3 or the pipe wall of the hollow pipe fitting 3 also contains a fragrance-enhancing and cooling layer, which is a polymer or a fragrance-enhancing coating. These polymers or fragrance-enhancing coatings are selected from materials that do not produce a plastic odor at high temperatures, such as biowax, natural biopolymers such as alginic acid, gelatin, and biological polysaccharides. The functional material can be any form of substance with cooling and fragrance-enhancing functions available in the prior art.

[0033] Preferably, the filter element 4 comprises cellulose acetate filament bundles, polyethylene terephthalate filament bundles, or hollow cellulose acetate filament bundles.

[0034] The outer wrapping component 1 is a paper tube or a non-woven fabric tube; wherein, the empty tube 3 and the filter 4 are wrapped together by paper or non-woven fabric to form an outer wrapping component on the empty tube 3 and the filter 4.

[0035] The outer wrapping 1 has a seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions, especially when the outer wrapping 1 is a non-woven fabric tube.

[0036] In this invention, the seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions is located on the side of the forming paper 21 near the grooved corrugated layer 22 or on the inner side of the outer wrapping 1.

[0037] During cigarette storage, moisture from the smoking material seeps to the outside of the cigarette paper tube, causing yellow spots. Similarly, smoking agents and flavorings are added to the smoking material. Over time, the smoking agents in the smoking material carry the flavorings to the outside of the paper tube, causing yellow spots and affecting the appearance of the paper tube. Since the smoking agent is polar and easily absorbs water, it soaks into the surface. Therefore, it is necessary to add an anti-seepage layer to the inner wall where the smoking material is filled to solve the problem of seepage after soaking.

[0038] Compared with the prior art, the present invention has the following beneficial effects:

[0039] 1. The functional coating of the present invention contains an adhesive medium, which includes anhydrous ethanol and an adhesive. It remains liquid even at room temperature, which means that porous materials, flavoring substances and smoky substances can be dispersed therein without heating the adhesive medium. Correspondingly, the functional coating does not need to be heated during the coating process, thereby preventing the volatilization of fragrances and flavorings during the preparation and application of the functional coating.

[0040] 2. In this invention, the solvent in the functional coating is anhydrous ethanol. After the anhydrous ethanol in the functional coating evaporates, the functional coating gradually loses its fluidity and becomes drier and more solid. Therefore, this invention does not utilize the properties of gels to achieve the conversion between liquid and solid states like existing flavoring gels, but rather uses anhydrous ethanol to achieve the transition between the two states. Therefore, the functional coating of this invention does not require temperature control.

[0041] 3. The solvent in the adhesive medium of this invention is anhydrous ethanol, which does not contain water. Anhydrous ethanol usually has a low evaporation point. Therefore, the grooved corrugated layer after the functional coating of this invention does not need to be dried at high temperature. It only needs to be placed at room temperature to allow the anhydrous ethanol to evaporate. This prevents the volatilization of fragrance and flavor caused by the temperature rise during the drying process.

[0042] 4. In this invention, the functional coating is located between the grooved corrugated layer and the wick. The curing process of the functional coating forms a stable adhesive structure between the grooved corrugated layer and the wick, ensuring the stability of both and preventing the wick from falling out of the cavity formed by the grooved corrugated layer. Before curing, the functional coating is fluid, and the adhesive medium can fill the tiny unevenness on the surface of the wick, further enhancing the bonding effect.

[0043] 5. In this invention, the fragrance and flavoring are first adsorbed into a porous material, and then the porous material containing the adsorbed fragrance and flavoring is added to the adhesive medium. The combination of the porous material and the adhesive medium can improve the sustained-release effect of the fragrance and flavoring.

[0044] Porous materials possess unique pore structures and high specific surface areas, enabling them to effectively adsorb and immobilize fragrance molecules. When fragrance molecules are adsorbed into the pores of a porous material, the interaction forces between the molecules and the surface of the material restrict their free movement, thereby reducing their evaporation rate. Furthermore, the pore structure of porous materials provides a relatively stable storage environment for fragrance molecules, preventing them from undergoing chemical changes or physical volatilization under the influence of the external environment.

[0045] Furthermore, adding porous materials adsorbed with flavorings and fragrances to the adhesive medium can further enhance the sustained-release effect of the flavorings and fragrances. The adhesive medium itself has a certain viscosity and stability, which can effectively encapsulate and fix the porous materials and their adsorbed flavorings and fragrances. During the manufacturing and use of cigarettes, the flavorings and fragrances are first released from the porous materials and then from the adhesive medium. Therefore, the adhesive medium can slow down the rate at which the flavorings and fragrances are released from the porous materials into the air, thereby achieving a sustained release of the flavorings and fragrances.

[0046] 6. The porous material in the functional coating of this invention can increase the flavor profile and complexity of cigarettes. The porous material itself has certain adsorption and release characteristics. That is, the porous material can not only release the adsorbed flavorings and fragrances, but also adsorb the smoke generated by the cigarette core during inhalation. The adsorbed smoke and the aroma produced by the porous material mix thoroughly, and are then released again, increasing the flavor profile and complexity of the cigarette and creating a unique taste experience.

[0047] 7. The anhydrous ethanol binder of this invention can better dissolve certain substances that are difficult to dissolve in aqueous solvents, thereby expanding the selection range of fragrances and flavorings. Furthermore, the functional coating contains porous materials that can adsorb flavoring substances. This adsorption method of flavoring also expands the selection range and forms of flavoring substances; any flavoring substance that can be adsorbed into the porous material can be used. Moreover, since the flavoring substances are adsorbed into the porous material, they are slowly released during inhalation. This form of flavoring achieves a slow release of flavoring substances, ensuring consistency in aroma quality before and after inhalation. Attached Figure Description

[0048] Figure 1 This is a schematic diagram of the grooved cigarette core component structure of the present invention;

[0049] Figure 2 This is a schematic diagram of the structure of the aerosol generating product of the present invention;

[0050] The names of the reference numerals in the accompanying drawings are as follows: 1-outer wrapping, 2-grooved cigarette core, 3-empty tube, 4-filter, 21-forming paper, 22-grooved corrugated layer, 23-cigarette core rod, 31-ventilation hole. Detailed Implementation

[0051] The present invention will now be described in further detail with reference to the embodiments.

[0052] Those skilled in the art will understand that the following embodiments are for illustrative purposes only and should not be construed as limiting the scope of the invention. Where specific techniques or conditions are not specified in the embodiments, they are performed in accordance with the techniques or conditions described in the literature in the field or according to the product instructions. Materials or equipment whose manufacturers are not specified are all conventional products that can be obtained by purchase.

[0053] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof. It should be understood that when we say an element is “connected” to another element, it can be directly connected to the other element, or there may be an intermediate element. Furthermore, the term “connected” as used herein can include wireless connections.

[0054] In the description of this invention, unless otherwise stated, "a plurality of" means two or more. The terms "inner," "upper," "lower," etc., indicate the orientation or state relationship based on the orientation or state relationship shown in the drawings, and are only for the convenience of describing the invention 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, and therefore should not be construed as a limitation of the invention.

[0055] In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installed," "connected," and "equipped with" 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. Those skilled in the art will understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0056] It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. It should also be understood that terms such as those defined in general dictionaries should be understood to have the meaning consistent with their meaning in the context of the prior art, and should not be interpreted in an idealized or overly formal sense unless defined as herein.

[0057] Example 1

[0058] like Figure 1-2 This embodiment is an aerosol generating product, which includes an outer packaging 1, and the grooved cigarette core 2, empty tube 3 and filter 4 located within the outer packaging 1.

[0059] The empty tube 3 is selected from paper tubes.

[0060] The empty pipe fitting 3 is provided with a vent 31 that penetrates the pipe wall of the empty pipe fitting 3.

[0061] The filter element 4 includes cellulose acetate filament bundles;

[0062] The outer wrapping component 1 is a paper tube; wherein the empty tube 3 and the filter 4 are wrapped together by paper or non-woven fabric to form an outer wrapping component on the empty tube 3 and the filter 4.

[0063] The outer packaging 1 has a seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions.

[0064] The grooved cigarette core 2 includes a forming paper 21, a grooved corrugated layer 22, and a core rod 23; a functional coating is provided between the grooved corrugated layer 22 and the core rod 23, and the functional coating contains porous materials, an adhesive medium, and flavoring substances.

[0065] The flavoring agent includes menthol;

[0066] The porous material includes activated carbon. The activated carbon has a mesh size of 80-300 mesh.

[0067] The adhesive medium includes anhydrous ethanol and an adhesive, wherein the adhesive is an adhesive with adhesive properties, including ethyl cellulose and guar gum.

[0068] The tobacco core rod 23 is a disordered aggregate of wrinkled reconstituted tobacco leaf material.

[0069] The functional coating also includes a fuming substance, which includes propylene glycol.

[0070] The molded paper 21 has a seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions on the side near the grooved corrugated layer 22;

[0071] The wall thickness of the grooved corrugated layer 22 is 1.0 mm;

[0072] The groove shape of the grooved corrugated layer 22 is "V".

[0073] The method for preparing the grooved cigarette core in this embodiment includes the following steps:

[0074] S1, using porous materials to adsorb fragrance-enhancing substances, then adding the porous materials adsorbed with fragrance-enhancing substances to the adhesive medium and stirring to obtain a functional coating;

[0075] S2, apply the functional coating obtained in step S1 onto the grooved corrugated layer to obtain a grooved corrugated layer 22 with a functional coating;

[0076] S3, the grooved corrugated layer 22 with a functional coating is rolled into a tube using the forming paper 21, and a wick 23 is placed in the cavity enclosed by the grooved corrugated layer 22. In this process, the wick can be directly rolled into the cavity of the grooved corrugated layer while the forming paper is rolling the grooved corrugated layer into the tube.

[0077] The functional coating also includes a fuming substance, which includes glycerol. Based on mass percentage, the functional coating comprises 50% porous material adsorbed with the functional substance, 40% adhesive medium, and 10% fuming substance; the adhesive medium has a mass ratio of adhesive to anhydrous ethanol of 1:10. This ratio is limited to control the viscosity of the functional coating, ensuring it maintains a moderate viscosity during the coating process. During coating, a flow valve is connected to the sealed container containing the functional coating to control the application amount. Therefore, the viscosity of the functional coating must be moderate. If it is too thin, the flow rate will be too fast and difficult to control, resulting in excessive coating. However, if it is too thick, the coating will be uneven. In actual preparation, if the functional coating is too thin, the amount of porous material is increased; if the functional coating is too thick, the amount of fuming substance or anhydrous ethanol in the adhesive medium is increased. The fuming substance is mentioned again here; in this functional coating system, it serves to increase the amount of smoke and control the viscosity of the system. Furthermore, if the functional coating is very viscous, prioritize increasing the amount of propylene glycol; if the functional coating is only slightly viscous, prioritize increasing the amount of glycerol.

[0078] In step S1, a porous material is used to adsorb the fragrance-enhancing substance. Then, the porous material with the adsorbed fragrance-enhancing substance is added to the adhesive medium, and then a smoking substance is added to it. After stirring, a functional coating is obtained.

[0079] In step S1, anhydrous ethanol and adhesive are first mixed to prepare an adhesive medium for later use. The mixture of flavoring agent, porous material and adhesive medium is called functional coating. After being coated on the grooved corrugated layer and dried, the anhydrous ethanol in the adhesive medium evaporates, and the functional coating becomes drier and more solidified.

[0080] In step S2, the amount of the functional coating applied to the grooved corrugated layer 22 is 1.0 mg / mm;

[0081] The container holding the functional coating in the coating equipment needs to be sealed. This is because the adhesive medium for the functional coating includes anhydrous ethanol and the adhesive, and anhydrous ethanol has a relatively low evaporation point. This means that if the container is not sealed, anhydrous ethanol will evaporate from the container during the coating process. After the anhydrous ethanol in the functional coating evaporates, the coating will gradually lose its fluidity, becoming drier and solidified, making it impossible to continue coating. Therefore, to maintain the fluidity of the functional coating, the container holding the functional coating in the coating equipment must be sealed.

[0082] The fragrance loading capacity of porous materials depends on the pore properties and adsorption time of the porous materials themselves, and is determined by combining the flow state of the final fragrance loading system.

[0083] Comparative Example

[0084] The aerosol generating products in the comparative example have the same structure, the only difference being that the flavoring gel coated on the groove corrugated layer 22 of the grooved cigarette core is polyethylene glycol (PEG) gel and the flavoring substance menthol. The amount of menthol used in the preparation process of the flavoring gel is the same as in the example.

[0085] A comparison of the aerosol generating products obtained in the comparative example and those obtained in the embodiments revealed that the smoke from the aerosol generating product of the embodiments exhibited a significant advantage in aroma. Specifically, when sensory personnel inhaled both aerosol generating products, the smoke produced by the aerosol generating product of the embodiments clearly showed a richer and more intense menthol aroma. This menthol aroma was not only more prominent but also played a more significant role in the overall flavor of the smoke, making the entire smoking experience fresher, cooler, and more pleasant. This richness of aroma enhanced the quality and characteristics of the smoke.

Claims

1. A grooved cigarette wick holder, characterized in that, It includes a forming paper (21), a grooved corrugated layer (22), and a cigarette core (23); a functional coating is provided between the grooved corrugated layer (22) and the cigarette core (23), the functional coating containing a porous material, an adhesive medium, and an aroma enhancer; the functional coating also includes a smoke-generating substance, the smoke-generating substance including one or more of glycerol or propylene glycol; The adhesive medium includes anhydrous ethanol and an adhesive; the adhesive includes at least one of hydroxypropyl methylcellulose, hydroxypropyl cellulose, polyvinyl ether, ethyl cellulose, modified starch, polyvinyl alcohol, shellac, gelatin, guar gum, and carob gum. The porous material is activated carbon, and the mesh size of the activated carbon is 80-300 mesh; The method for preparing the grooved cigarette core includes the following steps: S1, using porous materials to adsorb fragrance-enhancing substances, then adding the porous materials adsorbed with fragrance-enhancing substances to the adhesive medium, then adding a smoking substance to it, stirring, and obtaining a functional coating. S2, the functional coating obtained in step S1 is applied to the grooved corrugated layer to obtain a grooved corrugated layer (22) with a functional coating. S3, using forming paper (21) to roll the grooved corrugated layer (22) with functional coating into a tube, and the cavity enclosed by the grooved corrugated layer (22) has a cigarette core rod (23). Based on mass percentage, the functional coating comprises 40-60% porous material adsorbed with flavoring substances, 30-50% adhesive medium and 1-10% smoke-generating substances; The mass ratio of adhesive to anhydrous ethanol in the adhesive medium is 1:5-1:20; In step S1, anhydrous ethanol and adhesive are first mixed to prepare an adhesive medium for later use. The container holding the functional coating in the coating equipment needs to be sealed; The preparation and coating of the functional coating are carried out without heating. The grooved corrugated layer (22) coated with the functional material is placed at room temperature. After the anhydrous ethanol evaporates, the functional coating gradually loses its fluidity and solidifies. The solidified functional coating is located between the grooved corrugated layer (22) and the cigarette core (23) to prevent the cigarette core (23) from falling into the cavity formed by the grooved corrugated layer (22).

2. The grooved cigarette core carrier according to claim 1, characterized in that, The flavoring substances include menthol, ionone, ethyl maltol, vanillin, rose essential oil flavoring, tobacco extract, or nicotine salts.

3. The grooved cigarette core carrier according to claim 1, characterized in that, The forming paper (21) has a seepage-proof / heat-conducting layer with seepage-proof or heat-conducting functions on the side near the grooved corrugated layer (22); The wall thickness of the grooved corrugated layer (22) is 0.5-2.0 mm; The groove shape of the groove corrugated layer (22) is "V" or "U".

4. An aerosol generating article comprising the grooved cigarette core element according to any one of claims 1-3, characterized in that, The aerosol generating product includes an outer packaging (1), and the grooved cigarette core (2), empty tube (3), and filter (4) located within the outer packaging (1).

5. The aerosol generating product according to claim 4, characterized in that, The hollow tube (3) also contains functional materials; and / or The inner wall of the hollow tube (3) or the tube wall of the hollow tube (3) also contains an aroma-enhancing and cooling layer; The hollow tube (3) has a vent (31) that penetrates the hollow tube (3).

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