Aerosol generating product containing paper-based tobacco shred ordered aerosol generating substrate and preparation method of aerosol generating product

Abstract

The invention discloses an aerosol generating product containing a paper-based tobacco shred ordered aerosol generating substrate and a preparation method of the aerosol generating product. The aerosol generating product comprises outer wrapping paper (1), and the aerosol generating substrate (2), a supporting piece (3), a composite cooling filtering piece (4) and an end cavity piece (5) which are positioned in the outer wrapping paper (1), the aerosol generating substrate (2) is orderly arranged paper-based hair tobacco shreds, the paper-based hair tobacco shreds comprise a paper base body (22), functional substance layers (23) are arranged on the two faces of the paper base body (22), and coating layers (24) are arranged on the outer sides of the functional substance layers (23). The surface of the paper base body (22) with the functional substance layer (23) is coated, and the coating layer can improve the physical strength of the paper-based tobacco shred from multiple aspects, so that the problems that the filling amount of the paper-based tobacco shred is difficult to control, and the paper-based tobacco shred becomes sticky and low in stiffness after absorbing moisture, so that the ordered cigarette core rod becomes soft are solved.

Description

Technical Field

[0001] The present invention relates to the technical field of heat-not-burn cigarettes, and in particular to an aerosol-generating product comprising an ordered aerosol-generating matrix of paper-based tobacco shreds and a preparation method thereof. Background Art

[0002] As consumers pay more attention to health issues and demand for personalized experience of cigarette products, the tobacco industry continues to respond to the upgrading of consumer demand and develop various smoking products with tar reduction and harm reduction. Heat-not-burn cigarettes, as a new type of tobacco product, have received extensive attention and research in the tobacco industry in recent years. The core lies in the core segment, which produces aroma and smoke through heating, directly determining the style characteristics and quality of heated cigarettes. Therefore, the molding method of the core segment has become one of the research hotspots.

[0003] At present, in addition to granular heat-not-burn cigarettes, there are two other ways to form the core segments of heated cigarettes: ordered processing and disordered processing. The ordered processing mainly involves preparing reconstituted tobacco leaf slices first, absorbing smoke-generating agents and drying them, and then cutting them into reconstituted tobacco leaf shreds of a certain width and gathering them together to form them. The disordered processing is to mix reconstituted tobacco and natural tobacco raw materials into shreds, absorb smoke-generating agents and dry them, and then use the modified traditional rolling and splicing unit for rolling and splicing. Although the ordered and disordered processing technologies have higher flexibility and adaptability, they also face many technical difficulties.

[0004] First, the physical strength of the reconstituted tobacco leaf slices in the orderly processing technology will be significantly reduced after absorbing the smoke-generating agent, and the reconstituted tobacco leaf slices will become soft. In addition, during the preparation and storage of the reconstituted tobacco leaf slices, the smoke-generating agent inside the reconstituted tobacco leaf slices is also easy to seep out to the surface of the reconstituted tobacco leaf slices, or when the ambient humidity is high, the reconstituted tobacco leaf slices are easy to absorb moisture in the air. These problems will cause the physical strength to be significantly reduced and the reconstituted tobacco leaf slices to become soft. The reduction in the physical strength of the reconstituted tobacco leaf slices will make it difficult to control the filling amount of the reconstituted tobacco leaf shreds after subsequent shredding. If the filling amount is too small, the tobacco core segment will appear too soft, affecting the smoking experience; if the filling amount is too large, the tobacco shreds will be filled too tightly, increasing the inhalation resistance, and also affecting the smoking effect. Under the quantitative gram weight condition, the stiffness of the tobacco core rod is poor.

[0005] Secondly, the smoke-generating agent inside the reconstructed tobacco shreds seeps out to the surface of the reconstructed tobacco shreds, or when the ambient humidity is high, the reconstructed tobacco shreds absorb moisture from the air, which will cause the surface of the reconstructed tobacco shreds to become damp, causing adhesion between the shreds, affecting the orderly gathering process. In addition, the reconstructed tobacco shreds absorb moisture from the air, which will also cause the amount of smoke from the reconstructed tobacco shreds to decrease and increase the smoke temperature.

[0006] Finally, during the storage and transportation of reconstituted tobacco shreds, the smoke-generating agent easily seeps onto the surface of cigarette paper, forming yellow spots. This not only affects the aesthetics of cigarettes, but may also have an adverse effect on the taste of cigarettes. In order to solve this problem, it is usually necessary to set a separate anti-seepage layer on the inside of the cigarette paper, which undoubtedly increases the production cost and process complexity. In addition, during the storage and transportation of reconstituted tobacco shreds, the internal effective ingredients (such as smoke-generating agents, aroma components, etc.) will also have the problem of volatilization and loss, resulting in a short shelf life and a decrease in quality after being loaded into aerosol-generating products.

[0007] Therefore, developing a new method for forming heated cigarette core segments that can not only maintain the stable physical strength of reconstituted tobacco shreds but also effectively prevent the extravasation of smoke-generating agents is of great significance for improving the quality and smoking experience of heated cigarettes.

[0008] In addition, in order to improve the smoke yield and aroma quality, the main body of the existing ordered aerosol generation matrix can usually only be reconstituted tobacco leaves, and the choice of raw materials is limited.

[0009] In order to solve the above problems, the present invention is proposed. Summary of the invention

[0010] In view of the above-mentioned shortcomings, the present invention proposes an aerosol generating product including an ordered aerosol generating matrix of paper-based tobacco shreds and a preparation method thereof. The aerosol generating product includes an outer wrapping paper 1, and an aerosol generating matrix 2, a supporting member 3, a composite cooling filter 4 and an end cavity 5 located in the outer wrapping paper 1; the aerosol generating matrix 2 is an ordered arrangement of paper-based tobacco shreds, and the paper-based tobacco shreds include a paper material substrate 22, and the paper material substrate 22 has a functional material layer 23 on both sides, and the outer side of the functional material layer 23 has a coating layer 24. The present invention coats the surface of the paper material substrate 22 having the functional material layer 23, and the coating layer can improve the physical strength of the paper-based tobacco shreds from multiple aspects, thereby solving the problems of difficulty in controlling the filling amount of the paper-based tobacco shreds, stickiness of the paper-based tobacco shreds after absorbing moisture, and low stiffness, which leads to softening of the ordered cigarette core rod.

[0011] The first aspect of the present invention provides an aerosol generating product comprising a paper-based tobacco shred ordered aerosol generating matrix, comprising an outer wrapping paper 1, and an aerosol generating matrix 2, a support member 3, a composite cooling filter member 4 and an end cavity member 5 located in the outer wrapping paper 1;

[0012] The composite cooling filter element 4 comprises a hollow cooling element 41 and a filter element 42, and the outer sides of the hollow cooling element 41 and the filter element 42 are wrapped with a molding paper 43; the outer wrapping paper 1 outside the composite cooling filter element 4 and the end cavity element 5 is wrapped with a tipping paper 6;

[0013] The aerosol generating substrate 2 has cigarette paper 21 on the outside;

[0014] The aerosol generating matrix 2 is orderly arranged paper-based tobacco shreds, and the paper-based tobacco shreds include a paper material substrate 22 . The paper material substrate 22 has functional material layers 23 on both sides, and the functional material layers 23 have coating layers 24 on the outside.

[0015] Preferably, the end cavity member 5 has one or more cavities 51;

[0016] When there is one cavity 51, the cavity 51 is located at the central axis; when there are multiple cavities 51, the cavities 51 are dispersed in the end cavity member 5;

[0017] The end cavity member 5 is an acetate fiber bundle tube, a paper tube or a non-woven fabric tube;

[0018] The axial length of the end cavity part 5 is one to two times the diameter of the end cavity part 5 .

[0019] When the end cavity member 5 has a cavity located at the central axis, the cross-section of the cavity is heart-shaped, star-shaped, polygonal, or flower-shaped; when the end cavity member 5 has multiple dispersed cavities, the cross-section of the cavity is circular, heart-shaped, star-shaped, polygonal, or flower-shaped.

[0020] When the end cavity member 5 has a cavity located at the central axis, the specific cross-sectional shape of the cavity is preferably a special non-circular shape such as a heart shape, a star shape, a polygon shape, a flower shape, etc. The purpose of the special shape is to provide a larger smoke channel to reduce interception, and at the same time, the filter member 42 upstream thereof can be blocked with a flavoring bead 421. Here, the upstream is defined according to the movement direction of the aerosol, and the aerosol moves from the upstream to the downstream. However, when the end cavity member 5 has a plurality of dispersed cavities, the size of the cavity will be set slightly smaller than that of a single cavity, so the specific cross-sectional shape of the cavity is not limited here, and it can be a circle, or a special non-circular shape such as a heart shape, a star shape, a polygon shape, a flower shape, etc.

[0021] Preferably, the present invention does not limit the axial position of the flavoring beads in the filter element. Preferably, the beads are in the axial center of the filter element, but they can also be on the side of the filter element close to the hollow cooling element 41, or on the side of the filter element close to the end cavity section. Even if they are located in the second half of the filter element, since the diameter of the inscribed circle of the downstream end cavity section is smaller than the diameter of the flavoring beads 421, the beads will not fall out of the cavity.

[0022] The support member 3 of the present invention can be selected from any conventional support member form used for aerosol generating products in the art, and it can be an ordinary tube with a hollow structure, such as a hollow acetate fiber bundle tube, a hollow paper tube or a hollow non-woven fabric tube. It can also be a support member with a grooved corrugated layer as a tube wall. The support member 3 can determine whether to add a flavoring or smoking component according to actual conditions. The flavoring or smoking component can be in the form of directly setting a flavoring material layer or a smoking material layer on the tube wall, or adding a flavoring material or a smoking material in the tube cavity of the support section. Flavoring materials include natural fragrance raw materials and tobacco extracts, and smoking materials include propylene glycol and glycerol.

[0023] Preferably, the support member 3 has a flavoring component, which is a porous material adsorbed with flavors and fragrances, and the porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or natural porous materials from plants. Since the flavoring substance is adsorbed inside the porous material, the flavoring substance in the porous material is also slowly released during the suction process. This form of flavoring can achieve the slow release of the flavoring substance and ensure the consistency of the aroma quality before and after suction.

[0024] Preferably, the support member 3 includes a tube wall 31 and a tube cavity 32 , the tube wall 31 is a grooved corrugated structure, which includes an outer layer 311 , an inner layer 312 and a grooved corrugated layer 313 located therebetween, the outer layer 311 defines the outer surface of the support member 3 , and the inner layer 312 defines the tube cavity 32 .

[0025] The outer layer 311 is selected from paper; the inner layer 312 is selected from tow materials or sheets, the tow materials include acetate fiber tows and polylactic acid tows, the sheets include paper, reconstituted tobacco or polymer material sheets; the grooved corrugated layer 313 is selected from paper or non-woven fabrics with a groove structure. In the actual selection process, if a wrinkled sheet is required, non-woven fabrics are preferred, and if a smooth sheet is required, paper is preferred. In addition, preferably, the grooved corrugated layer sheet is pre-pressed to form groove folds, and then wrapped with the outer layer 211 and the inner layer 212 to form a tube wall with a grooved corrugated structure.

[0026] The cross-sectional shape of the grooves in the grooved corrugated layer 313 is "U"-shaped or "V"-shaped.

[0027] More preferably, the aroma enhancement component is a porous material adsorbed with flavors and fragrances, and is coated on the inner wall of the support or the grooved corrugated layer sheet according to actual conditions.

[0028] Preferably, the filter 42 has a fragrance bead 421, and the fragrance and flavor characteristics of the fragrance and flavor in the fragrance bead are consistent or inconsistent with the fragrance and flavor characteristics in the fragrance component. When the fragrance and flavor characteristics are consistent, the fragrance bead plays a role in replenishing the fragrance of the fragrance component, and when the fragrance and flavor characteristics are inconsistent, the fragrance bead plays a role in changing the fragrance type of the fragrance component.

[0029] The diameter of the inscribed circle of the cavity 51 is smaller than the diameter of the flavoring popping beads 421, so as to ensure that the flavoring popping beads 421 will not fall out of the cavity. Here, the diameter of the inscribed circle of the cavity 51 is required to be smaller than the diameter of the flavoring popping beads 421, that is, the size of the popping beads that can pass through the cavity is smaller than the diameter of the popping beads added to the filter element 42 of the present invention.

[0030] Preferably, the hollow cooling member 41 has ventilation holes penetrating the tipping paper 6, the outer wrapping paper 1, the shaping paper 43 and the tube wall of the hollow cooling member 41. External air enters the hollow interior of the hollow cooling member 41 through the ventilation holes and merges with the smoke.

[0031] Preferably, the hollow cooling element 41 is a hollow acetate fiber bundle tube, a hollow paper tube or a hollow non-woven fabric tube, and the wall thickness of the hollow cooling element 41 is 0.2-1.2 mm.

[0032] The filter element 42 of the present invention is acetate fiber tow.

[0033] Preferably, the weight of the paper substrate 22 is 70-110 g / m 2 ;

[0034] Preferably, the material of the coating layer 24 includes ethyl cellulose, shellac, and carnauba wax;

[0035] The mass of the coating layer 24 accounts for 5-30% of the mass of the paper substrate 22 .

[0036] Preferably, the functional material layer 23 includes one or more of tobacco extract, smoke generating agent, tobacco powder, flavors and fragrances, or porous materials loaded with flavors and fragrances, and the smoke generating agent includes propylene glycol or glycerol;

[0037] The mass of the functional material layer 23 accounts for 20-50% of the mass of the paper substrate 22 .

[0038] The second aspect of the present invention provides a method for preparing an aerosol-generating product comprising a paper-based tobacco shred ordered aerosol-generating matrix according to the first aspect of the present invention, comprising the following steps:

[0039] S1, preparing a functional substance coating suspension, taking the paper substrate 22, and then coating the functional substance coating suspension on both sides of the paper substrate 22, and drying to form a functional substance layer 23 on both sides of the paper substrate 22;

[0040] S2, preparing a coating material mixture, forming a coating layer 24 on the outside of the functional material layer 23 by spraying or calendering, and drying to obtain the paper-based smoking sheet;

[0041] S3, rolling up: rolling up the paper-based smoking sheet obtained in step S2 and putting it into a sealed bag for later use;

[0042] S4, shredding, gathering and compounding: taking the rolled paper-based smoking sheet obtained in step S3 and shredding it to obtain paper-based smoking shreds with a coating layer;

[0043] Then, the prepared paper-based tobacco shreds are gathered in order using cigarette paper 21 to obtain an aerosol generating matrix 2, and the hollow cooling component 41 and the filter component 42 are compounded using the forming paper 43 using a compounding machine to obtain the composite cooling filter component 4, and then the aerosol generating matrix 2, the support component 3, the composite cooling filter component 4 and the end cavity component 5 are compounded using the outer wrapping paper 1 using a compounding machine, and finally, the outer wrapping paper 1 on the outside of the composite cooling filter component 4 and the end cavity component 5 is wrapped with the tipping paper 6 to obtain an aerosol generating product.

[0044] Preferably, in step S1, the functional material layer 23 includes one or more of tobacco extract, smoke generating agent, tobacco powder, flavors and fragrances, or porous materials loaded with flavors and fragrances;

[0045] The method for preparing the functional substance coating suspension is as follows: tobacco extract and smoke generator are used as liquid components, tobacco powder and porous materials loaded with flavors and fragrances are used as solid components, and the liquid components and solid components are mixed in proportion to obtain the functional substance coating suspension.

[0046] Preferably, in step S2, the method for preparing the coating material mixed solution is: adding the coating material body into the solvent and stirring to prepare a coating material mixed solution with a mass concentration of 4-15%;

[0047] The coating material includes but is not limited to ethyl cellulose, shellac, carnauba wax, and the solvent includes alcohols, such as anhydrous ethanol.

[0048] Preferably, in step S1 and step S2, the drying conditions include drying in an oven or air-drying with dry air. The drying conditions in the oven are: placing in an oven at 45-60°C and baking for 5-10 minutes; the air-drying conditions with dry air are: air-drying with dry air at 45-60°C for 5-10 minutes.

[0049] Compared with the prior art, the present invention has the following beneficial effects:

[0050] 1. The paper-based tobacco shreds of the present invention include a paper substrate 22, the paper substrate 22 has a functional material layer 23 on both sides, and the functional material layer 23 has a coating layer 24 on the outside. The present invention uses the paper substrate 22 instead of reconstituted tobacco leaves for the aerosol generating product for the first time, but the paper substrate 22 itself does not have the function of generating smoke and aroma. The present invention further uses the paper substrate 22 as a carrier, and coats the functional material layer 23 on both sides of the paper substrate 22. The functional substances in the functional material layer generate aroma and smoke to ensure the smoking quality. However, the double-sided coating of the paper substrate 22 with the functional material layer 23 will cause the paper substrate 22 to become soft, which in turn causes the problem that the filling amount of the paper-based tobacco shreds is difficult to control and the stiffness of the cigarette core rod becomes low under the condition of quantitative gram weight. The present invention further forms a coating layer 24 on the outside of the functional material layer 23 to ensure the physical strength of the paper-based tobacco shreds. The paper-based smoking shreds obtained by shredding the paper-based smoking sheet of the present invention are used in aerosol generating products, and have excellent smoke yield and aroma quality. The paper-based smoking shreds of the present invention can completely replace reconstituted tobacco leaf shreds for use in aerosol generating products.

[0051] 2. The functional material layer 23 of the paper-based tobacco shreds of the present invention includes one or more of tobacco extract, smoke generating agent, tobacco powder, flavors and fragrances, or porous materials loaded with flavors and fragrances. The liquid component is responsible for smoke generation and strength, the solid component is used as a flavor skeleton, and loading the flavors and fragrances into the porous material can further improve the sustained release effect of the aroma.

[0052] 3. The present invention coats the surface of the paper substrate 22 having the functional material layer 23. After the paper-based smoking sheet is subsequently cut into paper-based smoking shreds, the coating layer on the surface of the paper-based smoking shreds can improve the physical strength of the paper-based smoking shreds in three aspects. First, the present invention coats the paper substrate 22 with functional materials (such as smoking agents) and dries it before coating it with the coating layer. The coating layer can improve the physical strength of the paper-based smoking shreds and prevent the paper substrate 22 from becoming soft after absorbing the smoking agent. Second, the coating layer prevents the smoking agent (only the smoking agent is used as an example, and also includes flavors, etc.) inside the paper-based smoking shreds from infiltrating onto the surface of the paper-based smoking shreds. Third, the coating layer can effectively prevent the passage of moisture in the air, isolate the internal paper substrate 22 and the functional material layer 23 from the outside world, and effectively reduce the hygroscopicity of the paper substrate 22. The problem of decreased physical strength of paper-based tobacco shreds is avoided from three aspects, thereby solving the problem of difficult control of the filling amount of paper-based tobacco shreds. Under the condition of quantitative weight, the stiffness of the cigarette core rod is guaranteed, thereby avoiding the problem of softening of the ordered cigarette core rod due to low stiffness.

[0053] 4. The coating layer on the surface of the paper-based tobacco shreds of the present invention can prevent the paper-based tobacco shreds from becoming sticky after absorbing moisture, avoid adhesion between shreds, and ensure smooth orderly gathering. In addition, it prevents the paper-based tobacco shreds from absorbing moisture in the air, and also avoids the problem of decreased smoke volume and increased smoke temperature of the paper-based tobacco shreds.

[0054] 5. The coating layer on the surface of the paper-based tobacco shreds of the present invention can prevent the smoking agent inside the paper-based tobacco shreds from seeping out to the surface of the paper-based tobacco shreds, and also avoids the problem of yellow spots caused by the smoking agent seeping out to the cigarette paper. There is no need to set an anti-seepage layer on the cigarette paper, which reduces the requirements for cigarette paper.

[0055] 6. The coating layer on the surface of the paper-based tobacco shreds of the present invention can also lock the internal components of the paper-based tobacco shreds (such as smoke-generating agents, aroma components, etc.), thereby preventing the internal components of the paper-based tobacco shreds from volatilizing and dissipating during storage.

[0056] 7. The coating material of the present invention is selected from ethyl cellulose. The coating layer formed by the material can not only effectively prevent the passage of water, but also has a certain air permeability. Therefore, when the paper-based tobacco shreds are heated to generate aerosols, the aerosols can still smoothly pass through the coating layer and be gradually released, without affecting the smoke output of the paper-based tobacco shreds themselves.

[0057] 8. The amount of coating material used in the present invention and the preparation conditions during the coating process ensure the uniformity of the coating. The amount and uniformity of the coating also have a great influence on the volatility. If the amount of the coating is too large or the coating is uneven, the release of volatile substances may be hindered. However, the appropriate amount and uniformity of the coating can ensure that the volatile substances can pass through the coating smoothly when heated.

[0058] 9. The filter element of the present invention has flavoring beads in it. Since an end cavity is arranged downstream of the filter element, the positioning requirements for the flavoring beads when applying them in the filter element are reduced. Even if the flavoring beads are close to the downstream end face of the acetate fiber tow filter section (the end face facing the lip end), or even exposed from the downstream end face of the acetate fiber tow filter section, they will not flow out after being crushed due to the existence of the end cavity. Moreover, the flavoring substances in the end cavity can also enhance the flavor of the smoke when the smoke passes through. The present invention arranges an end cavity downstream of the filter element, which reduces the process difficulty of adding the flavoring beads in the filter element.

[0059] 10. The diameter of the inscribed circle of the cavity 51 of the end cavity member 5 of the present invention is smaller than the diameter of the flavoring bead 421, so as to ensure that the flavoring bead 421 will not fall out of the cavity. Furthermore, when the end cavity member 5 has a cavity located at the central axis, the specific cross-sectional shape of the cavity is preferably a special non-circular shape such as a heart shape, a star shape, a polygonal shape, a flower shape, etc., the purpose of which is to provide a greater smoke channel to reduce interception while blocking the flavoring bead 421 in the upstream filter member 42. Because the cavity is of an irregular shape, it is sufficient as long as the diameter of the inscribed circle of the cavity is smaller than the diameter of the flavoring bead 421.

[0060] In addition, the special-shaped end cavity can also increase the recognition and interest of the aerosol generating product.

[0061] 11. In the present invention, a flavoring component is arranged in the support member, and flavoring beads are added in the filter member, wherein the flavoring beads in the filter member play a role in supplementing the aroma of the flavoring component in the support member and changing the flavor type in the middle and late stages of smoking. Specifically, the blocking member in the early stage of smoking is for smoke flavoring. When the consumer feels that the aroma is insufficiently supplemented, the beads can be manually broken, thereby flavoring the smoke in the second half and playing a role in aroma supplementation in the later stage. Furthermore, the aroma and flavor characteristics of the flavoring component in the support member and the flavoring beads in the filter member may be inconsistent, thereby playing a role in changing the style characteristics before and after smoking. For example, the flavor characteristic of the flavoring component in the support member is fruity, while the flavor characteristic of the flavoring beads in the filter member is chocolate. In this way, when the consumer feels that the fruity style is not obvious during smoking, he or she can manually break the flavoring beads, thereby changing to chocolate flavor in the second half of smoking.

[0062] 12. The present invention arranges an end cavity member downstream of the filter member. The end cavity member extends the distance from the aerosol generating matrix section to the mouth end. Therefore, the temperature of the outer surface of the end cavity member is lower than that of the filter member surface, thereby avoiding the problem of the mouth end surface of the aerosol generating product being hot.

[0063] 13. The end cavity of the present invention has a hollow air flow channel inside, which has a small interception of smoke, so the smoke stays in the end cavity for a short time, which prevents the smoke from transferring heat to the outer surface, thereby further avoiding the problem of the mouth end surface of the aerosol generating product being hot. At the same time, since the end cavity has a small interception of smoke, the arrangement of the end cavity downstream of the filter will not significantly increase the inhalation resistance.

[0064] 14. The end cavity member of the present invention is a hollow acetate fiber bundle tube, a hollow paper tube or a hollow non-woven fabric tube. Since the interior thereof is hollow, the material area in contact with the consumer's oral cavity is reduced, thereby alleviating the consumer's safety concerns.

[0065] 15. In terms of preparation method, the present invention first uses a compounding machine to use the molding paper 43 to compound the hollow cooling element 41 and the filter element 42 to obtain the composite cooling filter element 4, and then uses a compounding machine to use the outer wrapping paper 1 to compound the aerosol generating matrix 2, the support element 3, the composite cooling filter element 4 and the end cavity element 5. The present invention can prepare a five-component aerosol generating product without changing the original four-component compounding equipment. BRIEF DESCRIPTION OF THE DRAWINGS

[0066] Figure 1 The schematic diagram of the structure of an aerosol-generating product comprising an ordered aerosol-generating matrix of paper-based tobacco shreds is shown.

[0067] Figure 2 This is a schematic diagram of the paper-based tobacco structure.

[0068] Figure 3 is a schematic structural diagram of the support member 3;

[0069] Figure 4-Figure 8 The cross-sectional views of the end cavity 5 are shown in different implementations.

[0070] Names of the reference numerals in the description of the drawings: 1-outer wrapping paper, 2-aerosol generating matrix, 3-support member, 4-composite cooling filter member, 5-end cavity member, 6-tip paper;

[0071] 21-cigarette paper, 22-paper substrate, 23-functional material layer, 24-coating layer, 31-tube wall, 32-tube cavity, 41-hollow cooling element, 42-filter element, 43-molding paper, 51-cavity;

[0072] 311-outer layer, 312-inner layer, 313-grooved corrugated layer, 421-aroma-enhancing bursting beads. DETAILED DESCRIPTION

[0073] The present invention is further described in detail below in conjunction with embodiments.

[0074] Those skilled in the art will appreciate that the following examples are only used to illustrate the present invention and should not be considered to limit the scope of the present invention. If no specific techniques or conditions are specified in the examples, the techniques or conditions described in the literature in the art or the product specifications are used. If the manufacturer of the materials or equipment used is not specified, they are all conventional products that can be purchased.

[0075] Those skilled in the art will appreciate that, unless expressly stated otherwise, the singular forms "a", "an", "said" and "the" used herein may also include plural forms. It should be further understood that the term "comprising" used in the specification of the present invention refers to the presence of the 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 refer to an element as being "connected" to another element, it may be directly connected to the other element, or there may be intermediate elements. In addition, the "connection" used herein may include wireless connections.

[0076] In the description of the present invention, unless otherwise specified, "plurality" means two or more than two. The terms "inside", "upper", "lower", etc., indicating positions or state relationships, are based on the positions or state relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific position, be constructed and operate in a specific position, and therefore cannot be understood as limiting the present invention.

[0077] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "provided with" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium. For ordinary technicians in this field, the specific meanings of the above terms in the present invention will be understood according to specific circumstances.

[0078] 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 those generally understood by those skilled in the art in the art to which the present invention belongs. It should also be understood that terms such as those defined in common dictionaries should be understood to have meanings consistent with the meanings in the context of the prior art, and will not be interpreted with idealized or overly formal meanings unless defined as herein.

[0079] Example 1

[0080] like Figure 1 As shown, this embodiment provides an aerosol generating product comprising a paper-based tobacco shred ordered aerosol generating matrix, which comprises an outer wrapping paper 1, and an aerosol generating matrix 2, a support member 3, a composite cooling filter member 4 and an end cavity member 5 located in the outer wrapping paper 1;

[0081] The composite cooling filter element 4 comprises a hollow cooling element 41 and a filter element 42, and the outer sides of the hollow cooling element 41 and the filter element 42 are wrapped with a molding paper 43; the outer wrapping paper 1 outside the composite cooling filter element 4 and the end cavity element 5 is wrapped with a tipping paper 6;

[0082] The aerosol generating substrate 2 has cigarette paper 21 on the outside;

[0083] like Figure 2 As shown, the aerosol generating matrix 2 is orderly arranged paper-based tobacco shreds, and the paper-based tobacco shreds include a paper material substrate 22 . The paper material substrate 22 has functional material layers 23 on both sides, and the functional material layer 23 has a coating layer 24 on the outside.

[0084] The end cavity member 5 has a cavity 51;

[0085] When there is one cavity 51, the cavity 51 is located at the central axis;

[0086] The end cavity member 5 is an acetate fiber bundle tube;

[0087] The axial length of the end cavity part 5 is twice the diameter of the end cavity part 5 .

[0088] like Figure 4-8 As shown, when the end cavity member 5 has a cavity located at the central axis, the cross-section of the cavity is heart-shaped, star-shaped, polygonal, or flower-shaped; when the end cavity member 5 has multiple dispersed cavities, the cross-section of the cavity is circular, heart-shaped, star-shaped, polygonal, or flower-shaped.

[0089] like Figure 3 The support member 3 includes a tube wall 31 and a tube cavity 32. The tube wall 31 is a grooved corrugated structure, which includes an outer layer 311, an inner layer 312 and a grooved corrugated layer 313 located therebetween. The outer layer 311 defines the outer surface of the support member 3, and the inner layer 312 defines the tube cavity 32.

[0090] The outer layer 311 is selected from paper; the inner layer 312 is selected from paper; and the grooved corrugated layer 313 is selected from non-woven fabric with a groove structure.

[0091] The cross-sectional shape of the grooves in the grooved corrugated layer 313 is "V" shaped.

[0092] The aroma enhancement component is a porous material activated carbon adsorbed with flavors and fragrances, and is coated on the grooved corrugated layer sheet of the support member.

[0093] The filter 42 has a fragrance bead 421. The fragrance and flavor characteristics of the flavor and fragrance in the fragrance bead are consistent or inconsistent with the fragrance and flavor characteristics in the fragrance component. When the fragrance and flavor characteristics are consistent, the fragrance bead plays a role in replenishing the fragrance of the fragrance component. When the fragrance and flavor characteristics are inconsistent, the fragrance bead plays a role in changing the fragrance type of the fragrance component.

[0094] The diameter of the inscribed circle of the cavity 51 is smaller than the diameter of the flavoring popping beads 421, so as to ensure that the flavoring popping beads 421 will not fall out of the cavity. Here, the diameter of the inscribed circle of the cavity 51 is required to be smaller than the diameter of the flavoring popping beads 421, that is, the size of the popping beads that can pass through the cavity is smaller than the diameter of the popping beads added to the filter element 42 of the present invention.

[0095] The hollow cooling member 41 has ventilation holes penetrating the tipping paper 6, the outer wrapping paper 1, the shaping paper 43 and the tube wall of the hollow cooling member 41. External air enters the hollow interior of the hollow cooling member 41 through the ventilation holes and merges with the smoke.

[0096] The hollow cooling element 41 is a hollow acetate fiber bundle tube, and the wall thickness of the hollow cooling element 41 is 1.0 mm.

[0097] The filter element 42 in this embodiment is acetate fiber tow.

[0098] The paper substrate 22 has a grammage of 90 g / m 2 ;

[0099] The material of the coating layer 24 includes ethyl cellulose;

[0100] The mass of the coating layer 24 accounts for 5% of the mass of the paper substrate 22 .

[0101] The functional material layer 23 includes tobacco extract, smoke generating agent, smoke powder and porous material loaded with flavors and fragrances, and the smoke generating agent includes propylene glycol and glycerol;

[0102] The mass of the functional material layer 23 accounts for 30% of the mass of the paper substrate 22 .

[0103] The method for preparing the aerosol-generating product comprising the paper-based tobacco shreds ordered aerosol-generating matrix comprises the following steps:

[0104] S1, preparing a functional substance coating suspension, taking the paper substrate 22, and then coating the functional substance coating suspension on both sides of the paper substrate 22, and drying to form a functional substance layer 23 on both sides of the paper substrate 22;

[0105] S2, preparing a coating material mixture, forming a coating layer 24 on the outside of the functional material layer 23 by spraying or calendering, and drying to obtain the paper-based smoking sheet;

[0106] S3, rolling up: rolling up the paper-based smoking sheet obtained in step S2 and putting it into a sealed bag for later use;

[0107] S4, shredding, gathering and compounding: taking the rolled paper-based smoking sheet obtained in step S3 and shredding it to obtain paper-based smoking shreds with a coating layer;

[0108] Then, the prepared paper-based tobacco shreds are gathered in order using cigarette paper 21 to obtain an aerosol generating matrix 2, and the hollow cooling component 41 and the filter component 42 are compounded using the forming paper 43 using a compounding machine to obtain the composite cooling filter component 4, and then the aerosol generating matrix 2, the support component 3, the composite cooling filter component 4 and the end cavity component 5 are compounded using the outer wrapping paper 1 using a compounding machine, and finally, the outer wrapping paper 1 on the outside of the composite cooling filter component 4 and the end cavity component 5 is wrapped with the tipping paper 6 to obtain an aerosol generating product.

[0109] In step S1, the functional material layer 23 includes tobacco extract, smoke generating agent, tobacco powder and porous material loaded with flavors and fragrances;

[0110] The method for preparing the functional substance coating suspension is as follows: tobacco extract and smoke generator are used as liquid components, tobacco powder and porous materials loaded with flavors and fragrances are used as solid components, and the liquid components and solid components are mixed in proportion to obtain the functional substance coating suspension.

[0111] In step S2, the method for preparing the coating material mixed solution is: adding the coating material body into the solvent and stirring to prepare a coating material mixed solution with a mass concentration of 5%;

[0112] The coating material mainly comprises ethyl cellulose, and the solvent comprises anhydrous ethanol.

[0113] Preferably, in step S1 and step S2, the drying conditions include drying in an oven or air-drying with dry air. The drying conditions in the oven are: placing in an oven at 60°C and baking for 5 minutes; the dry air drying conditions are: air-drying with dry air at 60°C for 5 minutes.

Claims

1. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix, characterized in that: It comprises an outer wrapping paper (1), and an aerosol generating matrix (2), a supporting member (3), a composite cooling filter member (4) and an end cavity member (5) located inside the outer wrapping paper (1); The composite cooling filter element (4) comprises a hollow cooling element (41) and a filter element (42), wherein the outer sides of the hollow cooling element (41) and the filter element (42) are wrapped with molding paper (43); the outer wrapping paper (1) on the outer sides of the composite cooling filter element (4) and the end cavity element (5) is wrapped with tipping paper (6); The aerosol generating substrate (2) has cigarette paper (21) on the outside; The aerosol generating matrix (2) is orderly arranged paper-based tobacco shreds, the paper-based tobacco shreds comprising a paper material substrate (22), the paper material substrate (22) having functional material layers (23) on both sides, and the functional material layers (23) having a coating layer (24) on the outside.

2. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix according to claim 1, characterized in that: The end cavity member (5) has one or more cavities (51); When there is one cavity (51), the cavity (51) is located at the central axis; when there are multiple cavities (51), the cavities (51) are dispersed in the end cavity member (5); The end cavity member (5) is an acetate fiber bundle tube, a paper tube or a non-woven fabric tube; The axial length of the end cavity part (5) is one to two times the diameter of the end cavity part (5).

3. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix according to claim 2, characterized in that: The support member (3) is provided with a fragrance enhancing component, which is a porous material adsorbed with flavors and fragrances, and the porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or natural porous materials from plants; The filter element (42) has a fragrance-enhancing bursting bead (421), and the fragrance and flavor characteristics of the essence and fragrance in the fragrance-enhancing bursting bead are consistent with or inconsistent with the fragrance and flavor characteristics in the fragrance-enhancing component; The diameter of the inscribed circle of the cavity (51) is smaller than the diameter of the flavor-enhancing bursting bead (421).

4. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix according to claim 1, characterized in that: The hollow cooling element (41) has a ventilation hole penetrating the tipping paper (6), the outer wrapping paper (1), the shaping paper (43) and the tube wall of the hollow cooling element (41); The hollow cooling element (41) is a hollow acetate fiber bundle tube, a hollow paper tube or a hollow non-woven fabric tube, and the wall thickness of the hollow cooling element (41) is 0.2-1.2 mm.

5. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix according to claim 1, characterized in that: The gram weight of the paper substrate (22) is 70-110 g / m 2 ; The material of the coating layer (24) includes ethyl cellulose, shellac, and carnauba wax; The mass of the coating layer (24) accounts for 5-30% of the mass of the paper substrate (22).

6. An aerosol-generating article comprising a paper-based tobacco shred ordered aerosol-generating matrix according to claim 1, characterized in that: The functional material layer (23) comprises one or more of tobacco extract, smoke generating agent, tobacco powder, flavors and fragrances, or porous materials loaded with flavors and fragrances, and the smoke generating agent comprises propylene glycol or glycerol; The mass of the functional material layer (23) accounts for 20-50% of the mass of the paper substrate (22).

7. A method for preparing an aerosol-generating product comprising a paper-based tobacco shred ordered aerosol-generating matrix according to any one of claims 1 to 6, characterized in that: It includes the following steps: S1, preparing a functional substance coating suspension, taking the paper substrate (22), then coating the functional substance coating suspension on both sides of the paper substrate (22), and drying to form functional substance layers (23) on both sides of the paper substrate (22); S2, preparing a coating material mixture, forming a coating layer (24) on the outside of the functional substance layer (23) by spraying or calendering, and drying to obtain the paper-based smoking sheet; S3, rolling up: rolling up the paper-based smoking sheet obtained in step S2 and putting it into a sealed bag for later use; S4, shredding, gathering and compounding: taking the rolled paper-based smoking sheet obtained in step S3 and shredding it to obtain paper-based smoking shreds with a coating layer; Then, the prepared paper-based tobacco shreds are gathered in order using cigarette paper (21) to obtain an aerosol generating matrix (2), and the hollow cooling element (41) and the filter element (42) are compounded using the forming paper (43) using a compounding machine to obtain the composite cooling filter element (4). Then, the aerosol generating matrix (2), the support element (3), the composite cooling filter element (4) and the end cavity element (5) are compounded using the outer wrapping paper (1) using a compounding machine, and finally, the outer wrapping paper (1) on the outside of the composite cooling filter element (4) and the end cavity element (5) is wrapped with a tipping paper (6) to obtain an aerosol generating product.

8. The preparation method according to claim 7, characterized in that: In step S1, the functional substance layer (23) includes one or more of tobacco extract, smoke generating agent, tobacco powder, flavors and fragrances, or porous materials loaded with flavors and fragrances; The method for preparing the functional substance coating suspension is as follows: tobacco extract and smoke generator are used as liquid components, tobacco powder and porous materials loaded with flavors and fragrances are used as solid components, and the liquid components and solid components are mixed in proportion to obtain the functional substance coating suspension.

9. The preparation method according to claim 7, characterized in that: In step S2, the method for preparing the coating material mixed solution is: adding the coating material body into the solvent and stirring to prepare a coating material mixed solution with a mass concentration of 4-15%; The coating material includes but is not limited to ethyl cellulose, shellac, carnauba wax, and the solvent includes alcohols, such as anhydrous ethanol.

10. The preparation method according to claim 7, characterized in that: In step S1 and step S2, the drying conditions include drying in an oven or air-drying with dry air. The drying conditions in the oven are: placing in an oven at 45-60°C and baking for 5-10 minutes; the air-drying conditions in dry air are: air-drying with dry air at 45-60°C for 5-10 minutes.

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