Aerosol generating product with paper base material rod aerosol generating substrate, preparation method and aerosol generating system

Abstract

The invention discloses an aerosol generating product with a paper base material rod aerosol generating substrate, a preparation method of the aerosol generating product and an aerosol generating system comprising the aerosol generating product. The aerosol generating product comprises the aerosol generating substrate, a supporting unit, a cavity unit and a filtering unit, the aerosol generating substrate is a gathered paper substrate rod; the supporting units are groove corrugated pieces; the volume of the airflow channel of the aerosol generating substrate is 1%-10% of the total volume of the aerosol generating substrate; and the volume of the airflow channel of the supporting unit is 60%-90% of the total volume of the supporting unit. The paper base material rod is mainly used for providing tobacco fragrance and fuming, and the groove corrugated piece is mainly used for providing fragrance quality. According to the aerosol generating product with the paper base material rod aerosol generating substrate, the upstream paper base material rod part and the downstream groove corrugated piece part have a synergistic effect, and the problems that an existing aerosol generating product is small in smoke amount, insufficient in fragrance and the like are effectively 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 having a paper substrate rod aerosol generating matrix, a preparation method thereof, and an aerosol generating system comprising the same. 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. Among them, heated cigarettes are different from traditional cigarette products in that they are heated in a way that satisfies consumers' sensory needs for cigarette products while providing a healthier smoking experience. However, in the production process of heat-not-burn cigarettes, how to maintain the aroma persistence of cigarettes and improve the flavor enhancement effect of smoke has always been a technical challenge faced by the tobacco industry.

[0003] At present, adding flavoring gel to the supporting section, cooling section or filtering section of the cigarette is a common way to flavor heat-not-burn cigarettes. The flavoring gel is solid when the temperature is low and liquid when the temperature is high. By utilizing this property, the flavoring gel can be prepared and coated in its liquid state, and it can be kept in the cigarette in a solid state at low temperatures. However, the existing flavoring gel system has the following problems: 1. In the preparation process of the flavoring gel, the gel system must first be heated to above 100°C to make it liquid, so as to facilitate the addition of flavors and fragrances to the gel system and the dissolution of the flavors and fragrances. However, too high a temperature will cause the flavors and fragrances to volatilize, thereby reducing the flavor and fragrance content in the flavoring gel. 2. In order to ensure that the flavoring gel is in liquid form throughout the entire application and coating process, the flavoring gel needs to be heated throughout the application and coating process, which results in the flavors and fragrances being in a volatile state during the entire application and coating process. That is to say, in order to facilitate the dissolution of flavors and fragrances and the coating of the flavoring gel, the gel system must be heated. However, the increase in temperature after heating will make it easier for the flavors and fragrances to escape from the gel, resulting in a dilemma of difficult temperature regulation. 3. At present, the solvent in the flavoring gel is water, so after coating the flavoring gel, it needs to be dried again to evaporate the water solvent in the gel system. However, the increase in temperature during the drying process will not only cause the volatilization of water, but also cause the flavors and fragrances to evaporate along with the water. The above problems result in the flavoring effect of cigarettes being greatly reduced when they reach the hands of consumers.

[0004] In addition, in the prior art of aerosol-generating products, in order to increase the amount of smoke and the quality of smoke aroma, some researchers will add all the smoke-generating agents and aroma-enhancing substances to the smoke-generating section at the end of the product. However, this design has a series of significant problems. First, since the aroma-enhancing substances are directly exposed to the air, they will be slowly released during storage and transportation. This process not only leads to the gradual loss of aroma components, but also makes the aroma intensity of the product obviously insufficient when it is actually inhaled. Users may therefore feel a significant decrease in the aroma experience, thereby affecting the overall quality and market acceptance of the product. Secondly, the slow release of aroma-enhancing substances also leads to inconsistency in aroma quality before and after inhalation. Over time, due to the continuous release of aroma-enhancing substances, the product may present a relatively strong aroma during the initial inhalation, but in subsequent inhalations, the aroma quality will be significantly weakened. This inconsistency in aroma quality will seriously affect the user's inhalation experience and may lead to user dissatisfaction and loss of the product. Finally, the problem of direct contact of aroma-enhancing substances with air in the prior art also leads to a shortened shelf life of the product. Due to the rapid release and loss of aroma components, the product may not maintain its original aroma quality and taste after long-term storage, which not only limits the market life of the product, but also increases the cost of production and storage.

[0005] In addition, when the user inhales, the entire smoking section will be heated, thereby generating aerosol. When the smoke generated by the smoking section cools down, condensation may form. If these condensates are not properly handled, they can easily flow into the heating chamber of the smoking device connected to it. The presence of condensation may not only pollute the interior of the heating chamber, reduce the cleanliness and hygiene standards of the smoking device, but may also interfere with the normal operation of the heating element, resulting in reduced heating efficiency or uneven heating. In the long run, this pollution and interference may cause the performance of the smoking device to deteriorate, shorten the service life of the smoking device, and even cause safety hazards.

[0006] Therefore, existing aerosol generating products still have many deficiencies in smoke effect, aroma enhancement effect, and condensate treatment, and a new technical solution is needed to solve these problems.

[0007] In order to solve the above problems, the present invention is proposed. Summary of the invention

[0008] The present invention provides an aerosol generating product having a paper substrate rod aerosol generating substrate, characterized in that it comprises an aerosol generating substrate, a supporting unit, a cavity unit, and a filtering unit;

[0009] The aerosol generating substrate is a gathered paper substrate stick;

[0010] The support unit is a grooved corrugated member;

[0011] The volume of the airflow channel of the aerosol generating substrate is 1%-10% of the total volume of the aerosol generating substrate;

[0012] The volume of the airflow channel of the support unit is 60%-90% of the total volume of the support unit.

[0013] In the present invention, the aerosol generating matrix, the support unit, the cavity unit, and the filter unit can be respectively compounded with the cigarette core segment and the filter segment by cigarette paper and forming paper, and then the cigarette core segment and the filter segment are compounded or twisted by outer wrapping paper to form an aerosol generating product. The aerosol generating matrix, the support unit, the cavity unit, and the filter unit can also be directly compounded to form an aerosol generating product. The present invention does not limit the outer wrapping of the aerosol generating product and the form of the molding.

[0014] Preferably, the paper substrate stick comprises a paper substrate, a functional substance and a coating material;

[0015] The paper substrate includes one or more of natural cellulose paper, composite paper, aluminum foil paper, and kraft paper; the gram weight of the paper substrate is 40-120 g / m 2 .

[0016] The functional substances include smoke-generating substances, flavoring substances, tobacco extracts and pigments; further, the functional substances also include natural extracts such as jujube extract, plum extract, honeysuckle extract, and tangerine peel extract, or stevioside and mogroside, which are used to provide a taste and a sense of body fluid in the smoke. This situation is used to provide flavored products. Since the paper substrate itself does not contain tobacco, the taste is relatively weak when smoking. Adding these natural extracts or stevioside and mogroside can increase the sweetness and body fluid, and improve the quality of smoking (jujube extract, stevioside, mogroside can increase the sweetness, while plum extract, honeysuckle extract, and tangerine peel extract can provide a sense of body fluid).

[0017] The coating material includes a coating material body and a solvent; the coating material body includes but is not limited to ethyl cellulose, shellac, and carnauba wax, and the solvent includes alcohols, and the alcohols include anhydrous ethanol.

[0018] Preferably, the grooved corrugated member comprises a forming paper, a grooved corrugated layer and an inner filling member;

[0019] The inner filling component is a tube or a gathered sheet.

[0020] The tube includes a paper tube, a non-woven fabric tube or an acetate fiber bundle tube;

[0021] The sheet comprises a polylactic acid film, a paper sheet or a non-woven sheet, wherein the paper sheet or the non-woven sheet is preferably a paper sheet or a non-woven sheet loaded with a smoke generating agent or a fragrance gel or the functional coating of the present invention.

[0022] The shaping paper has an anti-seepage / heat-conducting layer with anti-seepage or heat-conducting function on one side of the grooved corrugated layer;

[0023] The wall thickness of the grooved corrugated layer is 0.5-2.0 mm;

[0024] The groove shape of the grooved corrugated layer is "V"-shaped or "U"-shaped.

[0025] There is a functional coating between the grooved corrugated layer and the inner filling component, and the functional coating contains porous material, adhesive medium, smoke-generating substance, and flavoring substance;

[0026] Smoking substances include, but are not limited to, one or more of glycerin, propylene glycol, sorbitol, and isopropyl palmitate;

[0027] The flavoring substance includes menthol, ionone, ethyl maltol, vanillin, rose absolute flavor or tobacco extract or nicotine salt;

[0028] The porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or natural plant porous materials; preferably, the porous material is activated carbon, and the mesh number of the activated carbon is 80-300 meshes.

[0029] The bonding medium includes anhydrous ethanol and a binder, and the binder is a binder with a bonding effect, including at least one of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, ethyl cellulose, modified starch, polyvinyl alcohol, shellac, gelatin, guar gum, and carob bean gum.

[0030] Preferably, when the paper-based tobacco shreds include both smoking substances and flavoring substances, based on mass percentage, the smoking substances in the paper substrate rod account for 20%-60%, the flavoring substances account for 1%-10%, the tobacco extract accounts for 1%-10%, and the pigment accounts for less than 5%;

[0031] When there is a functional coating between the grooved corrugated layer and the inner filling component, based on mass percentage, the flavoring substance in the grooved corrugated member accounts for 5%-30%, and the smoking substance accounts for 2%-10%.

[0032] That is to say, the aerosol generating product of the present invention is used to provide characteristic aroma and flavor. When the paper substrate rod and the grooved corrugated member include both aroma enhancing substances and smoke-generating substances, the proportions of the aroma enhancing substances and smoke-generating substances in the paper substrate rod and the grooved corrugated member are not the same. The proportion of smoke-generating substances in the paper substrate rod is higher, while the proportion of aroma enhancing substances is lower. The paper substrate rod is mainly used to provide aroma and smoke. The proportion of smoke-generating substances in the grooved corrugated member is lower, while the proportion of aroma enhancing substances is higher. The grooved corrugated member is mainly used to provide characteristic aroma.

[0033] Preferably, the cavity unit is a cavity formed by the outer wrapping paper of the aerosol generating product, or is a hollow tube located inside the outer wrapping paper; the hollow tube 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 tube is 0.2-1.6 mm.

[0034] The cavity unit may or may not have a vent hole.

[0035] More preferably, there is a cooling unit between the cavity unit and the filter unit. The cooling unit can be an ordinary gathered polylactic acid rod or an empty tube, and the empty tube also contains functional materials; and / or the inner wall of the empty tube or the tube wall of the empty tube also contains a fragrance-enhancing and cooling layer, and the fragrance-enhancing and cooling layer is a high molecular polymer or a fragrance-enhancing coating; the empty tube has a vent that runs through the empty tube. These high molecular polymers or fragrance-enhancing coatings are selected from materials that do not produce plastic odor at high temperatures, such as bio-wax, natural biopolymers such as alginate, gelatin, biopolysaccharides, etc. The functional material can be any form of substance with cooling and fragrance-enhancing functions in the prior art.

[0036] The second aspect of the present invention provides a method for preparing an aerosol generating product having a paper substrate rod aerosol generating substrate according to the first aspect of the present invention, the method for preparing the aerosol generating substrate comprising the following steps:

[0037] (A1) Take a paper substrate and treat the paper substrate using an appropriate crushing process to increase the specific surface area of ​​the paper substrate. This can be achieved by mechanical crushing, hot pressing, etc. The degree of crushing should be determined according to the properties of the target adsorbate and the required adsorption performance.

[0038] (A2) adding a functional substance to the crushed paper substrate;

[0039] (A3) preparing a coating material mixture, forming a coating layer on the outer side of the paper substrate having the functional substance by spraying or dipping, and drying to obtain a paper substrate having the functional substance and the coating material;

[0040] (A4) Gathering the paper substrate with the functional substance and the coating material into a rod to obtain the first stage aerosol generating matrix.

[0041] Preferably, in step (A2), the method of adding the functional substance to the crushed paper sheet comprises:

[0042] Method 1: prepare a functional substance mixed solution, immerse the crushed paper sheet in the functional substance mixed solution for adsorption, and obtain a paper sheet with functional substances;

[0043] Method 2: prepare a functional substance mixed solution, immerse the porous material in the functional substance mixed solution for adsorption, and then apply the porous material adsorbed with the functional substance to the crushed paper sheet to obtain a paper sheet with functional substances; the porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or plant natural porous materials. Preferably, the porous material is activated carbon, and the mesh number of the activated carbon is 80-300 meshes.

[0044] In step (A2) of the present invention, when method 2 is adopted, the amount of porous material is adjusted according to actual conditions, and usually the mass ratio of porous material to flavoring substance is 2:1-1:2.

[0045] Preferably, the fragrance carrying capacity of the porous material is determined according to the pore properties and adsorption time of the porous material itself, and is combined with the flow state of the final fragrance carrying system to determine the fragrance carrying capacity.

[0046] Preferably, in step (A3), the method for preparing the coating material mixture is: adding the coating material body into the solvent and stirring to prepare a coating material mixture with a mass concentration of 1-15%; the coating material body includes but is not limited to ethyl cellulose, shellac, and carnauba wax, and the solvent includes alcohols, and the alcohols include anhydrous ethanol;

[0047] In step (A3), the drying conditions during the coating process include drying in an oven or air-drying in dry air. The drying conditions in the oven are: placing in an oven at 45-60°C and baking for 10-15 minutes; the air-drying conditions in dry air are: placing in dry air at 45-60°C and air-drying for 5-10 minutes.

[0048] The paper substrate of the present invention is first crushed and then adsorbed. By crushing the paper substrate, more tiny concave-convex structures can be formed on its surface, thereby increasing the specific surface area. The increase in specific surface area increases the contact area between the paper substrate and the target adsorbent (smoking agent, tobacco extract, pigment), which is conducive to the adsorption process. At the same time, if the paper substrate itself has a certain adsorption capacity, the adsorption performance may be further improved after crushing. In addition, during the crushing process, the interaction force between fibers is enhanced to form a more compact structure, so that the paper substrate is easier to gather into a rod shape when subjected to external force.

[0049] Preferably, the method for preparing the grooved corrugated member comprises the following steps:

[0050] (B1) using a porous material to absorb a flavoring substance, then adding the porous material with the flavoring substance absorbed thereon into a bonding medium, then adding a smoke-generating substance thereto, and stirring to obtain a functional coating;

[0051] (B2) coating the functional coating obtained in step B1 onto the grooved corrugated layer to obtain a grooved corrugated layer having the functional coating;

[0052] (B3) The grooved corrugated layer with the functional coating is rolled into a tube using a shaping paper, and the cavity surrounded by the grooved corrugated layer has an internal filling component. In this process, the internal filling component can be directly rolled into the cavity of the grooved corrugated layer when the shaping paper is used to roll the grooved corrugated layer into the tube, or the internal filling component can be filled into the cavity after the shaping paper is used to roll the grooved corrugated layer into the tube.

[0053] The mass ratio of the adhesive and anhydrous ethanol in the adhesive medium is 1:5-1:20; the purpose of limiting this ratio is to control the viscosity of the functional coating so that it always maintains a flow state with moderate viscosity during the coating stage. During the coating process, the closed can containing the functional coating is connected to the flow valve, and the application amount is controlled by the flow valve, so the viscosity of the functional coating should be moderate. If it is too thin, the flow rate will be too fast and difficult to control, and the coating amount will be too large, but if it is too thick, it will cause uneven coating. In the actual preparation process, if the functional coating is too thin, the amount of porous material is increased, and if the functional coating is too thick, the amount of smoke-generating material or anhydrous ethanol added in the adhesive medium is increased. The smoke-generating material is mentioned again here. In the functional coating system, on the one hand, it plays a role in increasing the amount of smoke, and on the other hand, it plays a role in controlling the viscosity of the system. Further, if the functional coating is very viscous, the amount of propylene glycol is increased first, and when the functional coating is only slightly viscous, the amount of propylene glycol is increased first.

[0054] In step B1, anhydrous ethanol and a binder are first mixed to prepare a bonding medium for later use.

[0055] Preferably, in step B2, the coating amount of the functional coating on the grooved corrugated layer is 0.1-10 mg / mm;

[0056] The holding tank containing the functional coating in the coating equipment needs to be sealed. This is because the bonding medium of the functional coating includes anhydrous ethanol and an adhesive, and the evaporation point of anhydrous ethanol is relatively low. This means that if the holding chamber is not sealed, the anhydrous ethanol will evaporate from the holding tank during the coating process. After the anhydrous ethanol in the functional coating evaporates, the functional coating will gradually lose its fluidity, become drier and more solid, and it can no longer be coated. Therefore, in order to maintain the fluidity of the functional coating, the holding tank containing the functional coating in the coating equipment must be sealed.

[0057] The third aspect of the present invention provides an aerosol generating system, which includes an aerosol generating device and an aerosol generating product having a paper substrate rod aerosol generating matrix as described in the first aspect of the present invention, wherein the aerosol generating matrix is ​​2-6 mm away from the supporting unit (grooved corrugated member) and does not contact the heater of the aerosol generating device.

[0058] The aerosol generating article of the present invention is particularly suitable for heating methods other than central heating, such as circumferential heating and airflow heating.

[0059] The filter unit in the present invention can be any type of filter unit in the prior art. More preferably, the filter unit also contains a flavoring substance to further flavor the smoke.

[0060] Furthermore, flavoring beads can be added to the filter unit. In the present invention, flavoring substances are added to the aerosol generation matrix and the support unit, and flavoring beads are added to the filter element, wherein the flavoring beads in the filter element play a role in supplementing the aroma of the aerosol generation matrix and the flavoring substances in the support unit and converting the flavor type in the middle and late stages of suction. Specifically, the aerosol generation matrix and the flavoring substances in the support unit in the early stage of suction are smoke flavoring. When the consumer feels that the aroma supplement of the suction is insufficient, the beads can be manually pinched and broken, thereby flavoring the smoke in the second half, which plays the effect of aroma supplement in the later stage. Furthermore, the aroma and flavor characteristics of the flavoring substances in the aerosol generation matrix and the support unit and the flavoring beads in the filter element may be inconsistent, which plays the effect of changing the style characteristics before and after suction. For example, the flavor characteristics of the aerosol generation matrix and the flavoring substances in the support unit are fruity, while the flavor characteristics of the flavoring beads in the filter element are chocolate. In this way, when the consumer feels that the fruity style is not obvious when suctioning, the flavoring beads are manually pinched and broken, thereby changing to chocolate flavor in the second half of the suction process.

[0061] During the production process, whether to add flavoring beads can be determined according to the actual situation. When two smoke flavors need to be provided, flavoring substances and porous materials can be added to the paper substrate rod, and flavoring beads can be added to the filter unit. When only one smoke flavor needs to be provided, flavoring substances and porous materials can be added only to the paper substrate rod, and flavoring beads are not added to the filter unit, or flavoring substances and porous materials are not added to the paper substrate rod, and flavoring beads are only added to the filter unit.

[0062] Furthermore, further, flavoring beads are added to the filter unit, and an end cavity is provided downstream of the filter unit, the end cavity having one or more cavities, the inscribed circle diameter of the cavity being smaller than the diameter of the flavoring beads, so as to ensure that the flavoring beads do not fall out of the cavity. Here, the inscribed circle diameter of the cavity is required to be smaller than the diameter of the flavoring beads, that is, the size of the beads that can pass through the cavity is smaller than the diameter of the beads added to the filter element of the present invention.

[0063] Preferably, when there is one cavity, the cavity is located at the central axis, and when there are multiple cavities, the cavities are dispersed in the end cavity pieces;

[0064] When the end cavity piece 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 piece has multiple dispersed cavities, the cross-section of the cavity is circular, heart-shaped, star-shaped, polygonal, or flower-shaped.

[0065] When the end cavity has a cavity located at the central axis, the specific cross-sectional shape of the cavity is preferably a heart-shaped, star-shaped, polygonal, flower-shaped or other non-circular special shape. The purpose of the special shape is to provide a larger smoke channel to reduce interception, and at the same time, the filter element upstream thereof can be blocked with the flavoring beads 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 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 heart-shaped, star-shaped, polygonal, flower-shaped or other non-circular special shape.

[0066] The end cavity member is an acetate fiber bundle tube, a paper tube or a non-woven fabric tube;

[0067] The axial length of the end cavity is one to two times the diameter of the end cavity.

[0068] 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 empty tube, 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, the beads will not fall out of the cavity.

[0069] The advantages of arranging the end cavity member downstream of the filter member with the aroma enhancement beads are:

[0070] 1. 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.

[0071] 2. The diameter of the inscribed circle of the cavity of the end cavity of the present invention is smaller than the diameter of the flavoring beads, so as to ensure that the flavoring beads will not fall out of the cavity. Furthermore, when the end cavity has a cavity located on 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 beads in the filter element upstream thereof. Because of the special-shaped cavity, it is sufficient as long as the diameter of the inscribed circle of the cavity is smaller than the diameter of the flavoring beads.

[0072] In addition, the special-shaped end cavity can also increase the recognition and interest of the aerosol generating product.

[0073] 3. The present invention arranges an end cavity member downstream of the filter member, and the end cavity member extends the distance from the aerosol generating matrix section to the mouth end, so the temperature of the outer surface of the end cavity member is lower than the surface of the filter member, thereby avoiding the problem of the mouth end surface of the aerosol generating product being hot.

[0074] 4. 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.

[0075] 5. 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.

[0076] Preferably, when there is an end cavity and the cavity unit is an empty tube, the filter unit and the empty tube can be first wrapped with forming paper to form a composite filter, and then the filter composite is compounded or twisted with other units. At this time, the aerosol generating product includes an aerosol generating matrix, a supporting unit, an empty tube, a filter unit, and an end cavity. The empty tube and the filter unit are wrapped with forming paper to form a composite filter, and two sections become one section. In this way, a five-component aerosol generating product can be prepared without changing the original four-component composite equipment.

[0077] Compared with the prior art, the present invention has the following beneficial effects:

[0078] Beneficial effects of the overall design of an aerosol generating product having a paper substrate stick aerosol generating matrix:

[0079] 1. In view of the problems existing in the prior art, the present invention proposes an aerosol generating product having a paper substrate rod aerosol generating matrix, and the paper substrate rod has the following beneficial effects:

[0080] (1) Providing smoke quantity: The paper substrate rod is coated or adsorbed with smoke-generating substances. During the inhalation process, the paper substrate rod is heated to generate aerosol.

[0081] (2) Improving the release effect of the aroma substances in the downstream grooved corrugated parts: The hot aerosol generated by the upstream paper substrate rod will elute the aroma substances in the downstream grooved corrugated parts, which helps to improve the release effect of the aroma substances in the downstream grooved corrugated parts, making the aroma of the product more intense when it is inhaled.

[0082] (3) Design of air flow channels of paper substrate rod and grooved corrugated member: The present invention also defines that the air flow channel volume of the paper substrate rod portion is smaller, and the paper substrate is filled more compactly; while the air flow channel volume of the grooved corrugated member portion is larger. This design enables the gas in the air flow channel of the grooved corrugated member to form a negative pressure due to the excessively fast flow rate during the suction process, thereby further extracting the aerosol generated in the aerosol generating matrix, further increasing the amount of smoke, and making the product's suction experience smoother and more comfortable.

[0083] In summary, the upstream paper substrate rod part and the downstream groove corrugated part in the aerosol generating product of the present invention work together to effectively solve the problems of small smoke volume and insufficient fragrance in existing aerosol generating products, improve the quality and stability of the product, and provide users with a better smoking experience.

[0084] 2. The aerosol generating product of the present invention is used to provide characteristic aroma and flavor. When the paper substrate rod and the grooved corrugated member include both aroma enhancing substances and smoke-generating substances, the proportions of the aroma enhancing substances and smoke-generating substances in the paper substrate rod and the grooved corrugated member are not the same. The proportion of smoke-generating substances in the paper substrate rod is higher, while the proportion of aroma enhancing substances is lower. The paper substrate rod is mainly used to provide aroma and smoke. The proportion of smoke-generating substances in the grooved corrugated member is lower, while the proportion of aroma enhancing substances is higher. The grooved corrugated member is mainly used to provide characteristic aroma.

[0085] Placing the grooved corrugated member carrying the aroma enhancing substance downstream has the following beneficial effects:

[0086] (1) A section of paper substrate rod is arranged upstream of the grooved corrugated rod with the aroma enhancing substance. The paper substrate rod acts as a barrier to effectively isolate the direct contact between air and the aroma enhancing substance. Since factors such as oxygen, humidity and temperature in the air may affect the stability and durability of the aroma enhancing substance, the setting of this barrier helps to maintain the original state and aroma quality of the aroma enhancing substance.

[0087] (2) During the smoking process, the paper substrate rod can ensure that the aroma enhancing substances are released in a stable manner. Due to the air barrier effect of the paper substrate rod, the distribution and release rate of the aroma enhancing substances in the grooved corrugated material can be controlled, thereby ensuring that the aroma quality of the smoke remains consistent throughout the smoking process.

[0088] (3) The provision of paper substrate rods can also help extend the shelf life of the product. Since paper materials have certain moisture-proof and anti-oxidation properties, they can protect the aroma-enhancing substances from damage by the external environment (such as humidity, temperature, light, etc.), thereby extending the shelf life of the product and the persistence of the aroma.

[0089] 3. The paper substrate of the present invention is first crushed and then adsorbed. By crushing the paper substrate, more tiny concave-convex structures can be formed on its surface, thereby increasing the specific surface area. The increase in specific surface area increases the contact area between the paper substrate and the target adsorbent (smoking agent, tobacco extract, pigment), which is beneficial to the adsorption process. At the same time, if the paper substrate itself has a certain adsorption capacity, the adsorption performance may be further improved after crushing. In addition, during the crushing process, the interaction force between fibers is enhanced to form a tighter structure, making the paper substrate easier to gather into a rod shape when subjected to external force.

[0090] 4. When the aerosol generating product of the present invention is used in conjunction with an aerosol generating device, the paper substrate rod is 2-6 mm away from the grooved corrugated incense stick and does not contact the heater of the aerosol generating device. When the aerosol generating product is heated, smoke will be generated in the smoking section. These smoke may form condensates during the cooling process. If there are no appropriate treatment measures, these condensates may flow into the heating chamber of the smoking device, polluting the heating chamber or affecting the normal operation of the smoking device. The present invention can effectively intercept these smoke condensates and prevent them from flowing into the heating chamber by providing a section of unheated paper substrate rod away from the lip end. In addition, in addition to the interception effect, due to the porous structure and surface characteristics of the paper material, it can absorb a certain amount of condensate that flows down. This adsorption effect not only further reduces the pollution of the heating chamber by the condensate, but also improves the overall cleanliness and user experience of the aerosol generating product.

[0091] Beneficial effects of coating materials on paper substrate rods:

[0092] 1. The paper substrate rod of the present invention comprises a paper substrate, a functional substance is adsorbed on the paper substrate, and a coating material is provided on the outside of the functional substance. The present invention uses a paper substrate instead of reconstituted tobacco leaves for use in aerosol generating products, but the paper substrate itself does not have the function of generating smoke and aroma. The present invention further uses the paper substrate as a carrier, adsorbs the functional substance on the paper substrate, and generates aroma and smoke through the functional substance to ensure the smoking quality. However, the adsorption of the functional substance on the paper substrate will cause the paper substrate to become soft, which in turn causes the problem of being difficult to gather and form. The present invention further adds a coating material on the outside of the functional substance to ensure the physical strength of the paper substrate rod.

[0093] 2. The present invention coats the surface of the paper substrate with functional substances. The coating layer can improve the physical strength of the paper substrate rod from three aspects. First, the present invention coats the paper substrate with the coating layer after the functional substance (such as smoke agent) is adsorbed and dried. The coating layer can improve the physical strength of the paper substrate rod and prevent the paper substrate from becoming soft after absorbing the smoke agent. Second, the coating layer prevents the smoke agent (only smoke agent is used as an example, and also includes flavors, etc.) inside the paper substrate rod from infiltrating the surface of the paper substrate rod. Third, the coating layer can effectively prevent the passage of moisture in the air, isolate the internal paper substrate and functional substances from the outside world, and effectively reduce the hygroscopicity of the paper substrate. In addition, preventing the paper substrate rod from absorbing moisture in the air also avoids the problem of a decrease in the amount of smoke and an increase in the temperature of the smoke on the paper substrate rod.

[0094] 3. The coating layer on the surface of the paper substrate rod of the present invention can prevent the smoke-generating agent inside the paper substrate rod from seeping out to the surface of the paper substrate rod, and also avoids the problem of yellow spots caused by the smoke-generating agent seeping out to the cigarette paper. There is no need to set an anti-seepage layer on the cigarette paper, thereby reducing the requirements for cigarette paper.

[0095] 4. The coating layer on the surface of the paper substrate rod of the present invention can also lock the internal components of the paper substrate rod (such as smoke generating agents, aroma components, etc.), thereby preventing the internal components of the paper substrate rod from volatilizing and dissipating during storage.

[0096] 5. 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 substrate rod is heated to generate aerosol, the aerosol can still smoothly pass through the coating layer and be gradually released, and will not affect the smoke generation of the paper substrate rod itself.

[0097] 6. 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.

[0098] Beneficial effects for grooved corrugated parts:

[0099] 1. The functional coating of the present invention contains a bonding medium, and the bonding medium includes anhydrous ethanol and an adhesive, which is still liquid even at room temperature. This makes it possible to disperse the porous material, the flavoring substance and the smoke-generating substance therein without heating the bonding medium. Accordingly, the functional coating does not need to be heated during the coating process, thereby preventing the volatilization of flavors and fragrances during the preparation and application of the functional coating.

[0100] 2. The solvent in the functional coating of the present invention is anhydrous ethanol. After the anhydrous ethanol in the functional coating evaporates, the functional coating will gradually lose its fluidity and become drier and more solid. Therefore, the present invention does not use the characteristics of gel to achieve the conversion between liquid and solid like the existing flavoring gel, but uses anhydrous ethanol to achieve the conversion between the two states, so the functional coating of the present invention does not need to control the temperature increase and decrease.

[0101] 3. The solvent in the adhesive medium of the present invention is anhydrous ethanol, which does not contain water. The evaporation point of anhydrous ethanol is usually low, so the grooved corrugated layer after coating the functional coating of the present invention does not need to be dried at high temperature, but only needs to be placed at room temperature to allow the anhydrous ethanol to evaporate, which prevents the volatilization of flavors and fragrances caused by the increase in temperature during the drying process.

[0102] 4. In the present invention, the functional coating is located between the grooved corrugated layer and the inner filling component. During the curing process of the functional coating, a stable bonding structure can be formed between the grooved corrugated layer and the inner filling component, thereby ensuring the stability of both the grooved corrugated layer and the inner filling component therein, and preventing the inner filling component from falling from the cavity formed by the grooved corrugated layer. The functional coating is fluid before curing, and the adhesive medium can fill the tiny concave and convex surfaces of the inner filling component, further enhancing the bonding effect.

[0103] 5. The flavors and fragrances of the present invention are first adsorbed into the porous material, and then the porous material adsorbed with the flavors and fragrances is added to the adhesive medium. The combination of the porous material and the adhesive medium can improve the sustained release effect of the flavors and fragrances.

[0104] Porous materials have a unique pore structure and high specific surface area, which enables them to effectively adsorb and fix flavor and fragrance molecules. When flavors and fragrances are adsorbed into the pores of porous materials, the interaction between their molecules and the surface of the porous materials will restrict their free movement, thereby reducing their volatilization rate. In addition, the pore structure of porous materials can also provide a relatively stable storage environment for flavor and fragrance molecules, preventing them from chemical changes or physical volatilization under the influence of the external environment.

[0105] Furthermore, adding porous materials adsorbed with flavors and fragrances to the adhesive medium can further improve the sustained release effect of the flavors and fragrances. The adhesive medium itself has a certain viscosity and stability, and can effectively wrap and fix the porous material and the flavors and fragrances adsorbed thereon. During the production and use of cigarettes, the flavors and fragrances are first released from the porous material and then from the adhesive medium, so the adhesive medium can slow down the speed at which the flavors and fragrances are released from the porous material into the air, thereby achieving a sustained release of the flavors and fragrances.

[0106] 6. The porous material in the functional coating of the present invention can increase the taste level and complexity of the cigarette. The porous material itself has certain adsorption and release characteristics, that is, the porous material can not only release the absorbed flavors and fragrances, but also absorb the smoke generated by the cigarette core segment during the smoking process. The smoke absorbed by the porous material and the aroma it produces are fully mixed, and then released again to increase the taste level and complexity of the cigarette, creating a unique taste experience.

[0107] 7. The binding medium of anhydrous ethanol of the present invention can better dissolve certain substances that are difficult to dissolve in water solvents, thereby expanding the selection range of flavors and fragrances. In addition, the functional coating contains porous materials, which can adsorb flavoring substances, and the flavoring method of adsorbing flavoring substances also expands the selection range and form of flavoring substances, as long as the flavoring substances can be adsorbed into the interior of the porous material. In addition, since the flavoring substances are adsorbed into the interior of the porous material, the flavoring substances in the porous material are also slowly released during the suction process. This form of flavoring can achieve the sustained release of the flavoring substances and ensure the consistency of the aroma quality before and after suction. BRIEF DESCRIPTION OF THE DRAWINGS

[0108] Figure 1 The figure is a schematic diagram of the structure of an aerosol generating product.

[0109] Figure 2 Schematic diagram of the structure of another aerosol generating product.

[0110] The names of the figure marks in the figure description: 1-outer wrapping paper, 2-aerosol generating matrix, 3-support unit, 4-filter unit, 41-flavoring beads, 5-end cavity piece, 6-cavity unit, 7-molding paper. DETAILED DESCRIPTION

[0111] The present invention is further described in detail below in conjunction with embodiments.

[0112] 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.

[0113] 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.

[0114] 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.

[0115] 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.

[0116] 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.

[0117] Example

[0118] This embodiment provides an aerosol generating product having a paper substrate rod aerosol generating substrate, characterized in that it includes an aerosol generating substrate 2, a support unit 3, a cavity unit 6, and a filter unit 4;

[0119] The aerosol generating substrate is a gathered paper substrate stick;

[0120] The support unit is a grooved corrugated member;

[0121] The volume of the airflow channel of the aerosol generating substrate is 1%-10% of the total volume of the aerosol generating substrate;

[0122] The volume of the airflow channel of the support unit is 60%-90% of the total volume of the support unit.

[0123] In this embodiment, the aerosol generating matrix, the supporting unit, the cavity unit, and the filtering unit are directly compounded through the outer wrapping paper 1 to form an aerosol generating product.

[0124] The paper substrate stick comprises a paper substrate, a functional substance and a coating material;

[0125] The paper substrate comprises natural cellulose paper; the grammage of the paper substrate is 80 g / m 2 .

[0126] The functional substances include smoke-generating substances, flavoring substances, tobacco extracts and pigments;

[0127] The coating material comprises a coating material body and a solvent; the coating material body comprises ethyl cellulose, and the solvent comprises anhydrous ethanol.

[0128] The grooved corrugated member comprises a forming paper, a grooved corrugated layer and an inner filling member;

[0129] The inner filling component is a pipe.

[0130] The tube comprises a paper tube;

[0131] The shaping paper has an anti-seepage / heat-conducting layer with anti-seepage or heat-conducting function on one side of the grooved corrugated layer;

[0132] The wall thickness of the grooved corrugated layer is 1 mm;

[0133] The groove shape of the grooved corrugated layer is "V"-shaped.

[0134] There is a functional coating between the grooved corrugated layer and the inner filling component, and the functional coating contains porous material, adhesive medium, smoke-generating substance, and flavoring substance;

[0135] Smoking substances include glycerin and propylene glycol;

[0136] The flavoring substance includes menthol;

[0137] The porous material is activated carbon, and the mesh number of the activated carbon is 80-300 meshes.

[0138] The bonding medium includes anhydrous ethanol and a binder, and the binder is a binder with a bonding effect, including at least one of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, ethyl cellulose, modified starch, polyvinyl alcohol, shellac, gelatin, guar gum, and carob bean gum.

[0139] When the paper-based tobacco shreds include both smoking substances and flavoring substances, based on mass percentage, the smoking substances in the paper substrate rod account for 30%, the flavoring substances account for 2%, the tobacco extract accounts for 1%, and the pigment accounts for 1%;

[0140] When there is a functional coating between the grooved corrugated layer and the inner filling component, based on mass percentage, the flavoring substance accounts for 30% and the smoke-generating substance accounts for 5% in the grooved corrugated member.

[0141] That is to say, the aerosol generating product of the present invention is used to provide characteristic aroma and flavor. When the paper substrate rod and the grooved corrugated member include both aroma enhancing substances and smoke-generating substances, the proportions of the aroma enhancing substances and smoke-generating substances in the paper substrate rod and the grooved corrugated member are not the same. The proportion of smoke-generating substances in the paper substrate rod is higher, while the proportion of aroma enhancing substances is lower. The paper substrate rod is mainly used to provide aroma and smoke. The proportion of smoke-generating substances in the grooved corrugated member is lower, while the proportion of aroma enhancing substances is higher. The grooved corrugated member is mainly used to provide characteristic aroma.

[0142] The cavity unit is a hollow tube located inside the outer wrapping paper; the hollow tube is a hollow acetate fiber bundle tube, and the wall thickness of the hollow tube is 1.5 mm.

[0143] The cavity unit has no ventilation holes.

[0144] The present embodiment provides a method for preparing an aerosol generating product having a paper substrate rod aerosol generating matrix, and the method for preparing the aerosol generating matrix comprises the following steps:

[0145] (A1) Take a paper substrate and treat the paper substrate using an appropriate crushing process to increase the specific surface area of ​​the paper substrate. This can be achieved by mechanical crushing, hot pressing, etc. The degree of crushing should be determined according to the properties of the target adsorbate and the required adsorption performance.

[0146] (A2) adding a functional substance to the crushed paper substrate;

[0147] (A3) preparing a coating material mixture, forming a coating layer on the outer side of the paper substrate having the functional substance by spraying or dipping, and drying to obtain a paper substrate having the functional substance and the coating material;

[0148] (A4) Gathering the paper substrate with the functional substance and the coating material into a rod to obtain the first stage aerosol generating matrix.

[0149] In step (A2), the method of adding the functional substance to the crushed paper sheet comprises:

[0150] Method 1: prepare a functional substance mixed solution, immerse the crushed paper sheet in the functional substance mixed solution for adsorption, and obtain a paper sheet with functional substances;

[0151] Method 2: prepare a mixed liquid of functional substances, immerse the porous material in the mixed liquid of functional substances for adsorption, and then apply the porous material adsorbed with the functional substances to the crushed paper sheet to obtain a paper sheet with functional substances; the porous material is activated carbon, and the mesh number of the activated carbon is 80-300 mesh.

[0152] In step (A2) of the present invention, when method 2 is adopted, the amount of porous material is adjusted according to actual conditions, and usually the mass ratio of porous material to flavoring substance is 1:1.

[0153] The amount of fragrance carried by the porous material depends on the pore properties and adsorption time of the porous material itself, and is determined in combination with the flow state of the final fragrance carrying system.

[0154] In step (A3), 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 3%; the coating material body includes ethyl cellulose, and the solvent includes anhydrous ethanol;

[0155] In step (A3), the drying conditions during the coating process include drying in an oven or air-drying in dry air. The drying conditions in the oven are: placing in an oven at 60°C and baking for 15 minutes; the air-drying conditions in dry air are: placing in dry air at 60°C and air-drying for 10 minutes.

[0156] The paper substrate of the present invention is first crushed and then adsorbed. By crushing the paper substrate, more tiny concave-convex structures can be formed on its surface, thereby increasing the specific surface area. The increase in specific surface area increases the contact area between the paper substrate and the target adsorbent (smoking agent, tobacco extract, pigment), which is conducive to the adsorption process. At the same time, if the paper substrate itself has a certain adsorption capacity, the adsorption performance may be further improved after crushing. In addition, during the crushing process, the interaction force between fibers is enhanced to form a more compact structure, so that the paper substrate is easier to gather into a rod shape when subjected to external force.

[0157] The method for preparing the grooved corrugated member comprises the following steps:

[0158] (B1) using a porous material to absorb a flavoring substance, then adding the porous material with the flavoring substance absorbed thereon into a bonding medium, then adding a smoke-generating substance thereto, and stirring to obtain a functional coating;

[0159] (B2) coating the functional coating obtained in step B1 onto the grooved corrugated layer to obtain a grooved corrugated layer having the functional coating;

[0160] (B3) The grooved corrugated layer with the functional coating is rolled into a tube using a shaping paper, and the cavity surrounded by the grooved corrugated layer has an internal filling component. In this process, the internal filling component can be directly rolled into the cavity of the grooved corrugated layer when the shaping paper is used to roll the grooved corrugated layer into the tube, or the internal filling component can be filled into the cavity after the shaping paper is used to roll the grooved corrugated layer into the tube.

[0161] The mass ratio of the adhesive and anhydrous ethanol in the adhesive medium is 1:5-1:20; the purpose of limiting this ratio is to control the viscosity of the functional coating so that it always maintains a flow state with moderate viscosity during the coating stage. During the coating process, the closed can containing the functional coating is connected to the flow valve, and the application amount is controlled by the flow valve, so the viscosity of the functional coating should be moderate. If it is too thin, the flow rate will be too fast and difficult to control, and the coating amount will be too large, but if it is too thick, it will cause uneven coating. In the actual preparation process, if the functional coating is too thin, the amount of porous material is increased, and if the functional coating is too thick, the amount of smoke-generating material or anhydrous ethanol added in the adhesive medium is increased. The smoke-generating material is mentioned again here. In the functional coating system, on the one hand, it plays a role in increasing the amount of smoke, and on the other hand, it plays a role in controlling the viscosity of the system. Further, if the functional coating is very viscous, the amount of propylene glycol is increased first, and when the functional coating is only slightly viscous, the amount of propylene glycol is increased first.

[0162] In step B1, anhydrous ethanol and a binder are first mixed to prepare a bonding medium for later use.

[0163] In step B2, the coating amount of the functional coating on the grooved corrugated layer is 1.0 mg / mm;

[0164] The holding tank containing the functional coating in the coating equipment needs to be sealed. This is because the bonding medium of the functional coating includes anhydrous ethanol and an adhesive, and the evaporation point of anhydrous ethanol is relatively low. This means that if the holding chamber is not sealed, the anhydrous ethanol will evaporate from the holding tank during the coating process. After the anhydrous ethanol in the functional coating evaporates, the functional coating will gradually lose its fluidity, become drier and more solid, and it can no longer be coated. Therefore, in order to maintain the fluidity of the functional coating, the holding tank containing the functional coating in the coating equipment must be sealed.

[0165] like Figure 2, in the present invention, flavoring beads 41 are added to the filter unit. Flavoring substances are added to the aerosol generating matrix and the support unit of the present invention, and flavoring beads are added to the filter element, wherein the flavoring beads in the filter element play the role of supplementing the aroma of the aerosol generating matrix and the flavoring substances in the support unit and converting the flavor type in the middle and late stages of the suction. Specifically, the aerosol generating matrix and the flavoring substances in the support unit in the early stage of the suction are smoke flavoring. When the consumer feels that the suction aroma is insufficient, the beads can be manually pinched and broken, thereby flavoring the smoke in the second half, which plays the role of supplementing the aroma in the later stage. Furthermore, the aroma and flavor characteristics of the flavoring substances in the aerosol generating matrix and the support unit and the flavoring beads in the filter element may be inconsistent, which plays the role of changing the style characteristics before and after the suction. For example, the flavor characteristics of the flavoring substances in the aerosol generating matrix and the support unit are fruity, while the flavor characteristics of the flavoring beads in the filter element are chocolate. In this way, when the consumer feels that the fruity style is not obvious when sucking, the flavoring beads are manually pinched and broken, thereby changing to chocolate flavor in the second half of the suction process.

[0166] An end cavity member 5 is arranged downstream of the filtration unit, and the end cavity member has a cavity, the inscribed circle diameter of the cavity is smaller than the diameter of the flavoring beads, so as to ensure that the flavoring beads will not fall out of the cavity, and the cavity is located at the central axis.

[0167] When the end cavity piece 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 piece has multiple dispersed cavities, the cross-section of the cavity is circular, heart-shaped, star-shaped, polygonal, or flower-shaped.

[0168] The end cavity member is an acetate fiber bundle tube.

[0169] The axial length of the end cavity is 1.5 times the diameter of the end cavity.

[0170] In this embodiment, the axial length of the filter element is 8 mm, and the diameter of the bursting bead is 2.8 mm, and the center of the bursting bead is located at the axial center of the filter element.

[0171] When there is an end cavity, and the cavity unit is an empty tube, the filter unit 4 and the empty tube (cavity unit 6) can be first wrapped with forming paper to form a composite filter, and then the filter composite is compounded or twisted with other units. At this time, the aerosol generating product includes an aerosol generating matrix 2, a supporting unit 3, an empty tube (cavity unit 6), a filter unit 4, and an end cavity 5. The empty tube and the filter unit are wrapped with forming paper 7 to form a composite filter, and two sections become one section. In this way, a five-component aerosol generating product can be prepared without changing the original four-component composite equipment.

[0172] The aerosol generating system of this embodiment includes an aerosol generating device and an aerosol generating product having a paper substrate rod aerosol generating matrix as described in the first aspect of the present invention, wherein the aerosol generating matrix is ​​3 mm away from the grooved corrugated member and does not contact the heater of the aerosol generating device.

[0173] In order to investigate the influence of the airflow channel volume of the aerosol generating substrate and the airflow channel volume ratio of the grooved corrugated member on the amount of smoke, the airflow channel volume of the aerosol generating substrate prepared in this embodiment is 0.5%, 1%, 5%, 8%, 10%, 20%, 50%, 70%, 90% of the volume of the aerosol generating substrate, and correspondingly, the airflow channel volume of the grooved corrugated member is 95%, 90%, 85%, 80%, 60%, 55%, 50%, 30%, 10% of the volume of the grooved corrugated member, respectively. After professional sensory evaluation personnel inhaled the samples of sol-generating products, it was found that when the volume of the airflow channel of the aerosol-generating matrix was 1%-10% of the volume of the aerosol-generating matrix; correspondingly, when the volume of the airflow channel of the grooved corrugated member was 60%-90% of the volume of the grooved corrugated member, the amount of smoke was relatively large, among which when the volume of the airflow channel of the aerosol-generating matrix was 5% of the volume of the aerosol-generating matrix; correspondingly, when the volume of the airflow channel of the grooved corrugated member was 85% of the volume of the grooved corrugated member, the amount of smoke was the largest. However, when the volume of the airflow channel of the aerosol-generating matrix accounted for 50% of the volume of the aerosol-generating matrix, and the volume of the airflow channel of the grooved corrugated member accounted for 50% of the volume of the grooved corrugated member, or when the volume of the airflow channel of the aerosol-generating matrix was 90% of the volume of the aerosol-generating matrix; correspondingly, when the volume of the airflow channel of the grooved corrugated member was 10% of the volume of the grooved corrugated member, the amount of smoke was relatively small. Therefore, the volume of the airflow channel of the aerosol generating matrix (i.e., the paper substrate rod part) in the present invention is small, and the paper substrate is filled more tightly; while the volume of the airflow channel of the grooved corrugated member is large. This design allows the gas in the airflow channel of the grooved corrugated member to form a negative pressure due to the excessive flow rate during the suction process, thereby further extracting the aerosol generated in the aerosol generating matrix, further increasing the amount of smoke, and making the product's suction experience smoother and more comfortable.

Claims

1. An aerosol generating product having a paper substrate rod aerosol generating matrix, characterized in that: It includes an aerosol generating matrix, a supporting unit, a cavity unit, and a filtering unit; The aerosol generating substrate is a gathered paper substrate stick; The support unit is a grooved corrugated member; The volume of the airflow channel of the aerosol generating substrate is 1%-10% of the total volume of the aerosol generating substrate; The volume of the airflow channel of the support unit is 60%-90% of the total volume of the support unit.

2. The aerosol-generating article according to claim 1, wherein The paper substrate stick comprises a paper substrate, a functional substance and a coating material; The paper substrate includes one or more of natural cellulose paper, composite paper, aluminum foil paper, and kraft paper; the gram weight of the paper substrate is 40-120 g / m 2 . The functional substances include smoke-generating substances, flavoring substances, tobacco extracts and pigments; The coating material comprises a coating material main body and a solvent; the coating material main body comprises ethyl cellulose, shellac and carnauba wax, the solvent comprises alcohols, and the alcohols comprise anhydrous ethanol.

3. The aerosol-generating article according to claim 2, wherein: The grooved corrugated member comprises a forming paper, a grooved corrugated layer and an inner filling member; The inner filling component is a tube or a gathered sheet. The tube includes a paper tube, a non-woven fabric tube or an acetate fiber bundle tube; The sheet comprises a polylactic acid film, a paper sheet or a non-woven fabric sheet. The shaping paper has an anti-seepage / heat-conducting layer with anti-seepage or heat-conducting function on one side of the grooved corrugated layer; The wall thickness of the grooved corrugated layer is 0.5-2.0 mm; The groove shape of the grooved corrugated layer is "V"-shaped or "U"-shaped. There is a functional coating between the grooved corrugated layer and the inner filling component, and the functional coating contains porous material, bonding medium, smoke-generating substance, and flavoring substance; The smoke-generating substance includes one or more of glycerol, propylene glycol, sorbitol, and isopropyl palmitate; The flavoring substance includes menthol, ionone, ethyl maltol, vanillin, rose absolute flavor or tobacco extract or nicotine salt; The porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or plant natural porous materials; The bonding medium includes anhydrous ethanol and a binder, and the binder is a binder with a bonding effect, including at least one of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, ethyl cellulose, modified starch, polyvinyl alcohol, shellac, gelatin, guar gum, and carob bean gum.

4. The aerosol-generating article according to claim 3, wherein: When the paper-based tobacco shreds include both smoking substances and flavoring substances, based on mass percentage, the smoking substances in the paper substrate rod account for 20%-60%, the flavoring substances account for 1%-10%, the tobacco extract accounts for 1%-10%, and the pigment accounts for less than 5%; When there is a functional coating between the grooved corrugated layer and the inner filling component, based on mass percentage, the flavoring substance in the grooved corrugated member accounts for 5%-30%, and the smoking substance accounts for 2%-10%.

5. The aerosol-generating article of claim 1, wherein: The cavity unit is a cavity formed by the outer wrapping paper of the aerosol generating article, or is an empty tube located inside the outer wrapping paper; The cavity unit may or may not have a vent hole.

6. A method for preparing an aerosol generating product having a paper-based tobacco shred aerosol generating matrix according to any one of claims 2 to 5, characterized in that: The method for preparing the aerosol generating substrate comprises the following steps: (A1) taking a paper substrate and treating the paper substrate by using an appropriate crushing process; (A2) adding a functional substance to the crushed paper substrate; (A3) preparing a coating material mixture, forming a coating layer on the outer side of the paper substrate having the functional substance by spraying or dipping, and drying to obtain a paper substrate having the functional substance and the coating material; (A4) Gathering the paper substrate with the functional substance and the coating material into a rod to obtain the aerosol generating matrix.

7. The preparation method according to claim 6, characterized in that: In step (A2), the method of adding the functional substance to the crushed paper sheet comprises: Method 1: prepare a functional substance mixed solution, immerse the crushed paper sheet in the functional substance mixed solution for adsorption, and obtain a paper sheet with functional substances; Method 2: prepare a mixed liquid of functional substances, immerse the porous material in the mixed liquid of functional substances for adsorption, and then apply the porous material adsorbed with the functional substances to the crushed paper sheet to obtain a paper sheet with functional substances; the porous material includes activated carbon, ceramic molecular sieve inorganic materials, or polymer organic materials, or natural porous materials from plants.

8. The preparation method according to claim 6, characterized in that: In step (A3), the method for preparing the coating material mixture is: adding the coating material body into the solvent and stirring to prepare a coating material mixture with a mass concentration of 1-15%; the coating material body includes ethyl cellulose, shellac, and carnauba wax, and the solvent includes alcohols, and the alcohols include anhydrous ethanol.

9. The preparation method according to claim 8, characterized in that: In step (A3), the drying conditions during the coating process include drying in an oven or air-drying in dry air. The drying conditions in the oven are: placing in an oven at 45-60°C and baking for 10-15 minutes; the air-drying conditions in dry air are: placing in dry air at 45-60°C and air-drying for 5-10 minutes.

10. An aerosol generating system, characterized in that: It comprises an aerosol generating device and an aerosol generating product having a paper substrate rod aerosol generating matrix as claimed in any one of claims 1 to 5, wherein the aerosol generating matrix is ​​2 to 6 mm away from the supporting unit and does not contact the heater of the aerosol generating device.

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