CN115251456A - Preparation method of porous aerosol generation substrate rod with volatile aroma-enhancing substances - Google Patents
Preparation method of porous aerosol generation substrate rod with volatile aroma-enhancing substances Download PDFInfo
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- CN115251456A CN115251456A CN202211030183.2A CN202211030183A CN115251456A CN 115251456 A CN115251456 A CN 115251456A CN 202211030183 A CN202211030183 A CN 202211030183A CN 115251456 A CN115251456 A CN 115251456A
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- 125000000217 alkyl group Chemical group 0.000 description 2
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- WASQWSOJHCZDFK-UHFFFAOYSA-N diketene Chemical compound C=C1CC(=O)O1 WASQWSOJHCZDFK-UHFFFAOYSA-N 0.000 description 2
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Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/01—Making cigarettes for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
Landscapes
- Manufacture Of Tobacco Products (AREA)
Abstract
The invention discloses a preparation method of a porous aerosol generating substrate rod with volatile aroma-enhancing substances. An aerosol-generating substrate rod comprising: a foamed substrate body (111) having a pore structure and a channel structure (222) extending axially within the foamed substrate body (111), the channel structure (222) and pore structure surface having a smoking substance, a flavouring substance and a tobacco substance. According to the invention, the foam substrate main body with the volatile aroma-increasing substances is prepared firstly, after the foam substrate main body is vacuumized, the foam substrate main body is used as a carrier to adsorb smoke substances and tobacco substances by soaking, then the gaseous aroma-increasing substances are flushed into the channel structure (222), and the gaseous aroma-increasing substances are diffused to the periphery of the foam substrate main body and are gradually condensed in the diffusion process and are remained in the pore structure. The aerosol-generating substrate rod smoking substance, the aroma-enhancing substance and the tobacco substance obtained by the preparation method are uniformly distributed in the pore structure.
Description
Technical Field
The invention belongs to the technical field of heating non-combustion cigarettes, and particularly relates to a preparation method of a porous aerosol generation substrate rod with volatile aroma-enhancing substances.
Background
Along with the improvement of living standard, people pay more and more attention to their health problems, and in recent years, the attention on the health problems of smoking is high. In order to meet the changing consumption requirements of various large enterprises at home and abroad, various completely hollow tobacco products for replacing the traditional cigarettes are developed in a dispute. Among these growing fully hollow tobacco products, electronic cigarettes and heat-not-combusted cigarettes are superior.
The electronic cigarette serving as an electronic product is expanded and applied in the tobacco industry, and has the advantages that the smoking variability is strong, the smoke smoking taste can be randomly regulated and controlled by adjusting components of tobacco tar, but the taste, particularly the heat sensation, of the smoke is generated mainly through an electronic atomizer, and is still different from the traditional cigarette which generates smoke through heating, so that the acceptance of old smokers is poor.
The heating non-combustion cigarette is characterized in that the smoking section of the heating cigarette generates smoke, the acceptance of the smoke taste generated by the heating non-combustion cigarette is good, the smoking section of the current marketed heating non-combustion cigarette is a reconstituted tobacco sheet filled in an unordered manner or bulk smoking particles, and the smoking section of the unordered reconstituted tobacco sheet filled in the heating non-combustion cigarette has the problem of insufficient smoke in a smoking process. The insufficient amount of flue gas is mainly due to the following reasons: (1) The reconstituted tobacco lamina used as the smoking segment requires a certain processing strength during the filling process, and also results in a small amount of added flavors and smoke agents; (2) The reconstituted tobacco sheet added with the spices and the smoke agent also needs to be subjected to multiple high-temperature treatment procedures, so that the added spices and the smoke agent are seriously volatilized, particularly volatile essence spices; (3) Because the reconstituted tobacco sheets are closely arranged in the smoking section, smoke generated at the front end of the smoking section far away from the filter section can be greatly trapped at the rear end. The latter smoking segment in the form of bulk smoking particles is an improvement over the former in smoke yield, but has new problems: because the bulk fuming particles can not be fixed, the particles are required to be filled into the outer tube in a filling mode, and the particles are required to be fixed on two sides of the fuming particle section in a mode of sealing paper and a sealing piece, so that the production efficiency is low, and the defective rate is high.
Therefore, the smoking unit which has the advantages of large smoke amount, rich fragrance, simple preparation method and no need of sealing paper and a plugging piece is hoped to be provided.
The present invention has been made to solve the above problems.
Disclosure of Invention
According to the invention, the foam-shaped substrate main body with the channel structure 222 is prepared firstly, after the foam-shaped substrate main body is vacuumized, the foam-shaped substrate main body is used as a carrier to adsorb smoke substances and tobacco substances by soaking, then the gaseous flavoring substances are flushed into the channel structure 222, and the gaseous flavoring substances are diffused to the periphery of the foam-shaped substrate main body and are gradually condensed in the diffusion process and are remained in the pore structure. The aerosol generating substrate rod obtained by the preparation method has high porosity, and the smoke generating substances, the aroma enhancing substances and the tobacco substances are uniformly distributed in the pore structure, so that the aerosol generating substrate rod has the advantages of large smoke quantity, high smoke comfort and proper smoke temperature when being used in aerosol generating products.
In a first aspect the invention provides a method of making a porous aerosol-generating substrate rod having a volatile flavouring substance, the boiling point of the flavouring substance being less than 200 ℃; an aerosol-generating substrate rod comprising: a foamed substrate body 111 having a pore structure and a channel structure 222 extending axially within the foamed substrate body 111, the channel structure 222 and the pore structure surface having a smoking substance, a flavoring substance and a tobacco substance;
the porosity of the foamed matrix body 111 is 50% -85%. Preferably 70-85%.
The preparation method comprises the following steps:
(1) Preparing a foamed matrix body 111 with said channel structure 222 and a porosity of 50-85%;
(2) Vacuumizing the foam-shaped substrate main body, and pumping out air in the pore structure of the foam-shaped substrate main body;
(3) Preparing a mixed solution of smoke substances and tobacco substances, and then soaking the vacuumized foam-shaped substrate main body in the mixed solution;
(4) The foamed substrate body impregnated with the mixed liquor is removed, dried and then the gaseous flavouring substance is flushed into the channel structure 222, resulting in the aerosol-generating substrate rod.
Preferably, the flavoring substance comprises one or more flavors and fragrances selected from menthol, blueberry flavor, orange flavor; the smoking material comprises a glycerin or propylene glycol smoke generator; the tobacco material comprises tobacco water extract. Preferably, the channel structures 222 are one or more, and the cross section thereof is circular, rectangular or triangular;
the channel structure 222 extends helically in the axial direction;
the channel structure 222 extends axially through the foam-like matrix body 111.
Preferably, when the channel structure is one, it is located at the central axis of the foamed matrix body.
Preferably, the outer side of the foam-like matrix body has a barrier layer;
the pore structure 3 is plural.
Preferably, the impermeable layer is an impermeable/heat-conducting layer with an impermeable or heat-conducting function, and the impermeable/heat-conducting layer comprises a waterproof layer and/or an oil-proof layer and/or a heat-conducting layer;
the waterproof layer adopts alkyl ketene dimer AKD, cationic rosin size or non-iron aluminum sulfate mixed and paraffin material; the oil-proof layer is made of fluorocarbon organic matter, modified starch, AKD and paraffin mixture and AKD and modified starch mixture. The heat-conducting layer is selected from but not limited to an aluminum foil layer which is added to the outer side of the foam-shaped substrate body by means of pasting; the aluminum foil layer can play a role in water resistance and/or oil resistance, and meanwhile, the aluminum foil layer also has a heat conduction and heat preservation function, so that the smoking material on the inner wall of the cigarette is uniformly heated.
Preferably, the water and/or oil repellent layer is applied by spraying to the outside of the foamed substrate body.
Moisture in the smoking material seeps to the outer side of the cigarette paper tube in the cigarette storage process to generate yellow spots. The waterproof layer adopts alkyl ketene dimer AKD, cationic rosin size or non-iron aluminum sulfate mixed and paraffin material, and can prevent moisture in the smoking material from permeating to the outer side of the cigarette paper tube.
Similarly, a smoke agent, essence and spices and the like can be added into the smoke generating material, and in the long-time placing process, the smoke generating agent in the smoke generating material can carry the essence and spices to permeate to the outer side of the paper tube to generate yellow spots to influence the appearance of the paper tube, and the smoke generating agent is oily. The oil-proof layer is made of fluorocarbon organic matter, modified starch, AKD and paraffin mixture, and the AKD and modified starch mixture can prevent smoke agents in the smoke generating material from carrying essence and spice to permeate to the outer wall of the paper tube, so that yellow spots are prevented from being generated.
Preferably, in the step (1), the preparation method of the foam-like matrix main body 111 comprises:
11 Mixing the polysaccharide powder, the foaming agent, the dispersing agent and the coagulating agent, and dissolving the mixture into an alcohol solution with a volume concentration of 0-15% v/v to prepare foaming slurry;
12 Loading the foaming slurry obtained in the previous step into a mold with a channel structure, and foaming for 10-30 minutes at high temperature to obtain a foamed composition;
13 Placing the foamed composition obtained in the previous step into a freezer at about-20 ℃ for freezing for 12-48 hours, taking out, dehydrating, and naturally drying or baking to obtain the foamed matrix main body 111.
Preferably, in the step (11), the polysaccharide powder is selected from one or more of konjac, starch, modified starch cellulose and glucomannan; the foaming agent is selected from one or more of foaming agent AC, foaming agent H, foaming agent OBSH and foaming agent TSH; the dispersing agent is selected from one or more of OP-10, span80 and sucrose ester; the coagulant is selected from sodium carbonate;
in the step (12), the foaming condition is foaming in an oven, a drying room or an oil bath at the temperature of 160-240 ℃.
Preferably, in the step (2), the vacuumizing condition is that the foam-shaped matrix main body is directly put into a vacuum bag for vacuumizing, and then the mixed solution is injected into the vacuum bag filled with the foam-shaped matrix main body through a pressure relief port.
Preferably, in step (3), the smoking material comprises a glycerol or propylene glycol smoke generator; the tobacco material comprises tobacco water extract; the mass ratio of the smoke agent to the tobacco water extract in the mixed solution is 3; the soaking time is 10-20 minutes.
Preferably, in the step (4), the drying mode is low-temperature drying or microwave drying, and the low-temperature drying condition is as follows: the drying temperature is 60-70 ℃, and the drying time is 0.5-1 hour; the microwave drying conditions were: the microwave power is 100-120W, and the microwave time is 10-30min; drying to a moisture content of 10% to 20% in the aerosol-generating substrate rod; the flavoring substance comprises one or more of menthol, blueberry essence and orange essence.
The preferred method of preparing the foamed matrix body of the present invention is as above, although other methods (such as extrusion) that can prepare a foamed matrix body having a porosity of 50% to 85% and having a channel structure 222 can be used in the present invention.
In a second aspect, the invention provides an aerosol-generating substrate rod produced by the method of manufacture of the first aspect of the invention.
In a third aspect the invention provides an aerosol-generating article comprising an aerosol-generating substrate rod 1 according to the second aspect of the invention, a gas-permeable hollow tube 2 and a filter rod 3; the air-permeable hollow pipe 2 is provided with an air vent 21 which radially penetrates through the pipe wall of the air-permeable hollow pipe 2; the aerosol-generating substrate rod 1, air-permeable hollow tube 2 and filter rod 3 are wrapped with a paper former and then with a tipping paper to give the aerosol-generating article.
In the actual preparation process, only one aerosol generating substrate rod 1, the air-permeable hollow tube 2 and the filter rod 3 can be wrapped by forming paper, or a plurality of aerosol generating substrate rods 1, air-permeable hollow tubes 2 and filter rods 3 can be sequentially wrapped to obtain a plurality of aerosol generating products wrapped by tipping paper, and then the aerosol generating products are cut and then wrapped by the tipping paper. That is, the aerosol-generating substrate rod 1, the air-permeable hollow tube 2, the filter rod 3, the air-permeable hollow tube 2, and the aerosol-generating substrate rod 1 may be sequentially wrapped with a paper, and then the filter rod 3 may be cut into two sections, and then the wrapping paper may be removed, or the aerosol-generating substrate rod 1 may be cut at a place where the aerosol-generating substrate rod is connected.
Since the aerosol-generating substrate rod 1 of the present invention is integral, it can be combined with the air-permeable hollow tube 2 and the filter rod 3 etc. and the efficiency of the pumping is greatly improved relative to the prior art where the units are filled individually by a filling process.
Preferably, there is also a fluted corrugated member 4 between the aerosol-generating substrate rod 1 and the air-permeable hollow tube 2. The construction of the fluted corrugated members 4 may be referred to in the patent application entitled particulate aerosol-generating article having fluted corrugated members, having application number 2022102553475, filed by the present applicant at 2022-03-15, the description of which is incorporated herein by reference.
The air-permeable hollow tube 2 in the present invention may be a paper tube or an acetate hollow tube, and preferably the air-permeable hole 21 is axially close to the filter rod 3 and its axial distance to the upstream end of the filter rod 3 is 1/2-1/3 of the axial length of the filter rod 3. Upstream and downstream in the present invention are defined in the flow direction of the aerosol.
The filter rods 3 of the present invention may be any type of filter element known in the art, such as conventional acetate filter cotton.
It is within the scope of the present application that aerosol-generating articles of the present invention may also comprise other structures, provided that they comprise an aerosol-generating substrate rod according to the first aspect of the present invention.
Compared with the prior art, the invention has the beneficial effects that:
1. the present invention uses for the first time a porous foam-like material made from a powder of a polysaccharide substance as the body of an aerosol-generating substrate rod. The foaming mainly comprises 3 processes of gelation, heating foaming and freezing forming. The polysaccharide substance powder forms a three-dimensional network structure under the action of a coagulant, namely gel is formed; then heating and foaming are carried out, and the foaming agent in the gel is decomposed to generate bubbles, so that a porous structure is formed; finally, the porous gel is frozen, water in the gel forms ice crystals to be separated out, the concentration of solid matters is correspondingly increased, and plant molecules are more tightly combined due to the extrusion of the ice crystals, so that the foam-shaped substrate main body with the pore structure is obtained by fixed forming, a large number of pore structures ensure that the aerosol generating substrate rod can adsorb and bear more smoke substances, aroma-enhancing substances and tobacco substances, the pore structure of the foam-shaped substrate main body is further favorable for releasing smoke, the problem that the smoke generated at the upstream of the aerosol generating substrate rod is intercepted by the downstream is avoided, and the smoke quantity and the smoke aroma quality are improved from two aspects.
2. The invention prepares a foam-shaped substrate main body, then uses the foam-shaped substrate main body as a carrier to adsorb smoke substances, aroma substances and tobacco substances, and does not directly foam the smoke substances, the aroma substances, the tobacco substances, polysaccharide substance powder, a foaming agent and the like together, and the reason is that: firstly, the addition of the smoke generating substance, the flavoring substance and the tobacco substance during the foaming process greatly affects the foaming effect, and particularly, in the case that the added tobacco substance is tobacco powder, a foam-shaped matrix main body with high porosity is difficult to obtain. Secondly, because the temperature during the foaming process is relatively high, typically between 160 ℃ and 240 ℃, such high temperature causes most of the smoke and aroma substances to be volatilized during the foaming process, and the really prepared foam substrate has few smoke and aroma substances, so that the aerosol generating substrate rod has the problems of small smoke amount during the smoking process and poor aroma sensory evaluation.
3. According to the invention, the foam-shaped substrate main body with the channel structure 222 is prepared firstly, after the foam-shaped substrate main body is vacuumized, the foam-shaped substrate main body is used as a carrier to adsorb smoke substances and tobacco substances by soaking, then the gaseous flavoring substances are flushed into the channel structure 222, and the gaseous flavoring substances are diffused to the periphery of the foam-shaped substrate main body and are gradually condensed in the diffusion process and are remained in the pore structure. The present invention encounters a new problem in the process of soaking and adsorbing a mixed liquid containing a smoke generating substance and a tobacco substance. The present invention is concerned with that during the foaming process, the bubbles inside the foam-like substrate body are merged during the release process, resulting in smaller pores extending along the aerosol-generating substrate rod in the radial direction and close to the central axis, and the pores are larger close to the periphery, if the obtained porous foam-like substrate body is directly soaked in the mixed liquid containing the smoke substance and the tobacco substance by using an infiltration method, or the mixed liquid is directly coated on the outer surface of the foam-like substrate body by using a spraying method, because the peripheral pores are larger, the adsorption capacity is stronger, and the pores of the inner layer are smaller and the adsorption capacity is weaker, so that the manner of applying the extender from the periphery and then diffusing to the inner layer results in a larger diffusion resistance, which results in a larger amount of the extender being adsorbed by the peripheral pore structure, hardly and rarely diffusing to the inner layer, and even the mixed liquid is not contacted at all at the central axis, and in order to avoid this problem, the amount of the mixed liquid can be further increased, or the soaking time can be increased until the inner layer pore structure can adsorb the extender, but this results in an excessive amount of the mixed liquid, which is easy to exude, and the smoke temperature can be scaly. Therefore, the method of applying the mixed liquid from the outer periphery has a problem that the amount of the mixed liquid is large or the distribution of the mixed liquid is not uniform. In order to further solve the problem, the foam-shaped matrix main body is vacuumized, air in the pore structure of the foam-shaped matrix main body is pumped out, and then the vacuumized foam-shaped matrix main body is soaked in the mixed liquid, so that the mixed liquid can quickly enter the pore structure and smoothly enter the pore structure of the inner layer under certain external pressure. The aerosol generating substrate rod obtained by the preparation method has high porosity, and the smoke substance and the tobacco substance are uniformly distributed in the pore structure, so that the aerosol generating substrate rod has the advantages of large smoke quantity, high smoke comfort and proper smoke temperature when being used in aerosol generating products.
Still further, the porous aerosol-generating substrate rod of the present invention has an axially extending channel structure into which gaseous flavourant is flushed, the gaseous flavourant diffusing towards the periphery of the foamed substrate body and gradually condensing during diffusion and remaining in the pore structure. And the peripheral pores are larger, so that the adsorption capacity is higher, the pores on the inner layer are smaller, the adsorption capacity is weak, and the diffusion resistance is smaller when the materials diffuse from inside to outside, so that the fragrance adding materials can be uniformly distributed in the pore structures even under the condition that less gaseous fragrance adding materials are filled. On the other hand, the perfuming substance which is in a gaseous state and is flushed into the channel structure is easier to diffuse compared with liquid. Therefore, the fragrance supplementing method is particularly suitable for volatile and easily-condensed fragrance-enhancing substances with lower boiling points.
4. The aerosol-generating substrate rod has the advantages of simple production process, high production efficiency of aerosol-generating products and controllable cost.
5. The aerosol-generating substrate rod 1 of the present invention is integral and therefore can be combined with the air-permeable hollow tube 2 and the filter rod 3, etc., and the efficiency of each unit is greatly improved compared to the prior art in which each unit is individually filled by a filling process, while the suction quality is improved.
Drawings
Figure 1 is a schematic structural view of an aerosol-generating article according to example 1;
figure 2 is a schematic structural view of an aerosol-generating article according to example 2.
Names of reference symbols in the description of the drawings: 1-aerosol-generating substrate rod, 2-gas permeable hollow tube, 3-filter rod, 4-groove corrugated member, 21-gas vent, 111-foam substrate body, 222-channel structure.
Detailed Description
The present invention will be described in further detail with reference to examples.
It will be appreciated by those skilled in the art that the following examples are illustrative of the invention only and should not be taken as limiting the scope of the invention. The examples do not specify particular techniques or conditions, and are performed according to the techniques or conditions described in the literature in the art or according to the product specifications. The materials or equipment used are not indicated by manufacturers, and all are conventional products available by purchase.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It will be further understood that the terms "comprises" and/or "comprising," when used in this specification, specify the presence of stated features, integers, steps, operations, elements, and/or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and/or groups thereof. It will be understood that when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. Further, "connected" as used herein may include wirelessly connected.
In the description of the present invention, "a plurality" means two or more unless otherwise specified. The terms "inner," "upper," "lower," and the like, refer to an orientation or a state relationship based on that shown in the drawings, which is for convenience in describing and simplifying the description, and do not indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "provided" are to be construed broadly, e.g., as being fixed or detachable or integrally connected; can be mechanically or electrically connected; may be directly connected or indirectly connected through an intermediate. The specific meanings of the above terms in the present invention are understood as specific cases by those of ordinary skill in the art.
It will be understood by those skilled in the art that, unless otherwise defined, all terms including technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. It will be further understood that terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning that is consistent with their meaning in the context of the prior art and will not be interpreted in an idealized or overly formal sense unless expressly so defined herein.
Example 1
As in figure 1, the aerosol-generating article is a ternary structure comprising an aerosol-generating substrate rod 1, a gas-permeable hollow tube 2 and a filter rod 3; the air-permeable hollow pipe 2 is provided with an air vent 21 which radially penetrates through the pipe wall of the air-permeable hollow pipe 2; the aerosol-generating substrate rod 1, air-permeable hollow tube 2 and filter rod 3 are wrapped with a paper former and then with a tipping paper to give the aerosol-generating article. The ventilation holes 21 are axially adjacent the filter rod 3 and are axially spaced from the upstream end of the filter rod 3 by 1/2 of the axial length of the filter rod 3.
An aerosol-generating substrate rod comprising: a foamed substrate body 111 having a pore structure and a channel structure 222 extending axially within the foamed substrate body 111, the channel structure 222 and the pore structure surface having a smoking substance, a flavoring substance and a tobacco substance; the porosity of the foamed matrix body 111 was 80%. The flavouring substance comprises menthol; the smoking material comprises propylene glycol; the tobacco material comprises tobacco water extract.
The channel structures 222 are one or more and have a circular cross section; the channel structure 222 extends axially through the foam-like matrix body 111. The channel structure is located at a central axis of the foamed substrate body. The outer side of the foam-shaped matrix main body is provided with a seepage-proof layer; the pore structure 3 is plural.
A method of making an aerosol-generating substrate rod comprising the steps of:
(1) Preparing a foamed substrate body 111 with said channel structure 222 and a porosity of 80%;
(2) Evacuating the foam-like substrate body to remove air from the pore structure of the foam-like substrate body;
(3) Preparing a mixed solution of smoke substances and tobacco substances, and then soaking the vacuumized foam-shaped substrate main body in the mixed solution;
(4) The foamed substrate body impregnated with the mixed liquor is removed, dried and then the gaseous flavouring substance is flushed into the channel structure 222, resulting in the aerosol-generating substrate rod.
In the step (1), the preparation method of the foam-like matrix main body 111 comprises:
11 Mixing polysaccharide substance powder, foaming agent, dispersant, and coagulant, and dissolving in an alcohol solution with a volume concentration of 10% v/v to prepare a foaming slurry;
12 Loading the foaming slurry obtained in the previous step into a mold with a channel structure, and foaming for 20 minutes at a high temperature to obtain a foamed composition;
13 Placing the foamed composition obtained in the previous step into a freezer at about-20 ℃ for freezing for 36 hours, taking out, dehydrating, and naturally drying or baking to obtain the foamed matrix main body 111.
In the step (11), the polysaccharide substance powder is selected from konjac flour; the foaming agent is selected from foaming agent AC; the dispersant is selected from Span80; the coagulant is selected from sodium carbonate. In the step (12), the foaming condition is foaming in an oven at the temperature of 200 ℃.
Preferably, in the step (2), the vacuum is drawn under the condition that the foam matrix main body is directly put into a vacuum bag for vacuum drawing, and then the mixed solution is injected into the vacuum bag filled with the foam matrix main body through a pressure relief port. In step (3), the smoking substance comprises glycerin or propylene glycol smoke agent; the tobacco material comprises tobacco water extract; the mass ratio of the smoke agent to the tobacco water extract in the mixed solution is 1. In the step (4), the drying mode is low-temperature drying, and the low-temperature drying condition is as follows: the drying temperature was 65 ℃ and the drying time was 0.5 hours, drying to a moisture content of 12% in the aerosol-generating substrate rod.
The resulting aerosol-generating article was prepared and referred to as sample 1.
Example 2
The difference from the embodiment 1 is that the smoke substance, the flavoring substance, the tobacco substance, the polysaccharide substance powder, the foaming agent and the like are directly foamed together, and the specific steps are as follows:
11 Uniformly mixing polysaccharide substance powder, foaming agent, dispersing agent, coagulating agent, flavoring substance menthol, smoke substance propylene glycol and tobacco powder, and dissolving into alcoholic solution with volume concentration of 10% v/v to prepare foaming slurry;
12 Uniformly dispersing the foaming slurry obtained in the previous step, then filling the mixture into a mold, and foaming the mixture for 20 minutes at a high temperature to obtain a foamed composition;
13 Placing the foamed composition obtained in the previous step into a refrigerator at about-20 ℃ for freezing for 36 hours, taking out, dehydrating, and naturally drying or baking to obtain the foamed matrix main body;
the tobacco powder can be called as tobacco dry material, which is made by crushing tobacco stem, tobacco stalk, tobacco powder and other cigarette industry waste into tobacco powder of 80-120 meshes.
The other steps were identical to example 1.
The resulting aerosol-generating article, designated sample 2, had a porosity of only 35% of the aerosol-generating substrate rod.
Example 3
The difference from example 1 is that the foamed substrate body 111 is not provided with the channel structure 222, and the prepared foamed substrate body is directly soaked in the mixed liquid containing the smoking substance, the flavoring substance and the tobacco substance, which is the same as the procedure of example 1. The resulting aerosol-generating article was prepared and referred to as sample 3.
Example 4
The difference to example 1 is that there is also a fluted corrugated member 4 between the aerosol-generating substrate rod 1 and the air-permeable hollow tube 2, and the resulting aerosol-generating article is referred to as sample 4.
Example 5
The aerosol generating product samples 1-4 were each smoked under equivalent conditions with a matched heat non-combustible cigarette smoking article, the temperature of the aerosol generating product aerosol generating substrate rod 1 being around 200 ℃ during smoking. Carrying out sensory evaluation on the aerosol generating product by a plurality of sensory evaluation personnel, and mainly investigating 6 indexes of smoke amount, aroma, smell, strength, harmony, irritation and taste; the scoring values of the 6 quality detection indexes are respectively as follows: the cigarette amount is 0-10 min, the aroma and flavor is 0-30min, the strength is 0-10 min, the coordination is 0-10 min, the irritation is 0-15 min, and the taste is 0-25 min, wherein the total score of 6 evaluation indexes is 100 min, and the higher the score of 5 evaluation indexes of the cigarette amount, the aroma and flavor, the strength, the coordination and the taste is, the stronger the feeling of the evaluation indexes in the smoking process is, the higher the irritation evaluation index score is, the less obvious the feeling of the evaluation indexes in the smoking process is, and the higher the total score of 6 evaluation indexes is, the better the smoking feeling of the aerosol generating product is. The sensory evaluation scores for the aerosol-generating article samples 1-4 are shown in table 1.
Mainly according to Q/YNZY.J07.022.
Table 1 sensory evaluation scores on smoking of different aerosol-generating article samples
As can be seen from the data in table 1 comparing aerosol-generating article sample 1 and aerosol-generating article sample 2, by directly foaming together a smoking material, a flavouring material and a tobacco material with a polysaccharide material powder, a foaming agent, etc., the porosity of the resulting aerosol-generating substrate rod is only 35%, which directly results in sample 2 having significantly lower smoke and aroma and flavour scores than sample 1.
Comparing aerosol-generating article sample 1 and aerosol-generating article sample 3, it is also important for the sensory evaluation of smoking to see whether the foamed substrate body has a channel structure and whether the mode of adsorption of the smoking material and tobacco material is from peripheral to internal or from internal to peripheral, and whether the channel structure is filled with a gaseous flavouring substance. The prepared foam substrate main body is directly soaked in the mixed liquid containing the smoke substance, the aroma-enhancing substance and the tobacco substance without a channel structure, the mixed liquid is diffused from the periphery of the foam substrate main body to the inside, the mixed liquid in the prepared aerosol generation substrate rod is not uniformly distributed, and the smoke amount and the coordination score of the sample 2 are obviously lower than that of the sample 1.
In addition, the smoke temperature of sample aerosol-generating article 1 entering the smoker's mouth was 39.2 ℃ and the smoke temperature of sample aerosol-generating article 4 entering the smoker's mouth was 38.9 ℃ because the fluted corrugated member had cavities and the air-permeable hollow section also had cavities, which allowed the incoming air to better contact and mix with the smoke, further reducing the smoke temperature.
Claims (10)
1. A method of making a porous aerosol-generating substrate rod having a volatile flavouring substance, wherein the flavouring substance has a boiling point of less than 200 ℃; an aerosol-generating substrate rod comprising: a foam-like substrate body (111) having a pore structure and a channel structure (222) extending axially within the foam-like substrate body (111), the channel structure (222) and the pore structure surface having a smoking substance, a flavouring substance and a tobacco substance;
the porosity of the foamed matrix body (111) is 50-85%;
the preparation method comprises the following steps:
(1) -preparing a foamed matrix body (111) with said channel structure (222) and a porosity of 50-85%;
(2) Evacuating the foam-like substrate body to remove air from the pore structure of the foam-like substrate body;
(3) Preparing a mixed solution of a smoking substance and a tobacco substance, and then soaking the vacuumized foam-shaped substrate main body in the mixed solution;
(4) -taking out the foamed substrate body impregnated with the mixed liquor, drying and then flushing gaseous flavouring substances into the channel structure (222) to obtain the aerosol-generating substrate rod.
2. The preparation method according to claim 1, wherein the flavoring substance comprises one or more flavors and fragrances selected from menthol, blueberry flavor, orange flavor; the smoking material comprises a glycerin or propylene glycol smoke generator; the tobacco material comprises tobacco water extract.
3. The method of claim 1, wherein the channel structure (222) is one or more of circular, rectangular, triangular in cross-section;
the channel structure (222) extends helically in axial direction;
the channel structure (222) axially penetrates the foam-like matrix body (111).
4. The method of manufacturing according to claim 1, wherein the foamed substrate body has a barrier layer on the outside;
the pore structure (3) is a plurality of pore structures.
5. The method according to claim 1, wherein in the step (1), the method for preparing the foamed substrate body (111) is:
11 Mixing the polysaccharide substance powder, the foaming agent, the dispersing agent and the coagulating agent, and dissolving the mixture in an alcohol solution having a volume concentration of 0 to 15% v/v to prepare a foaming slurry;
12 Loading the foaming slurry obtained in the previous step into a mold with a channel structure, and foaming for 10-30 minutes at high temperature to obtain a foamed composition;
13 Placing the foamed composition obtained in the previous step into a refrigerator at about-20 ℃ for freezing for 12-48 hours, taking out, dehydrating, and naturally drying or baking to obtain the foamed matrix main body (111).
6. The method according to claim 5, wherein in the step (11), the polysaccharide powder is one or more selected from konjac, starch, modified starch cellulose and glucomannan; the foaming agent is selected from one or more of foaming agent AC, foaming agent H, foaming agent OBSH and foaming agent TSH; the dispersing agent is selected from one or more of OP-10, span80 and sucrose ester; the coagulant is selected from sodium carbonate;
in the step (12), the foaming condition is foaming in an oven, a drying room or an oil bath at the temperature of 160-240 ℃.
7. The method of claim 1, wherein in step (3), the smoking substance comprises glycerin or propylene glycol smoke generator; the tobacco material comprises tobacco water extract;
the mass ratio of the smoke agent to the tobacco water extract in the mixed solution is 3; the soaking time is 10-20 minutes.
8. The preparation method according to claim 1, wherein in the step (4), the drying manner is low-temperature drying or microwave drying, and the low-temperature drying condition is as follows: the drying temperature is 60-70 ℃, and the drying time is 0.5-1 hour; the microwave drying conditions are as follows: the microwave power is 100-120W, and the microwave time is 10-30min; drying to a moisture content of 10% to 20% of the aerosol-generating substrate rod; the flavoring substance comprises one or more of menthol, blueberry essence and orange essence.
9. An aerosol-generating substrate rod produced by the method of manufacture of any one of claims 1 to 8.
10. An aerosol-generating article characterized in that it comprises an aerosol-generating substrate rod (1) according to claim 9, a gas-permeable hollow tube (2) and a filter rod (3); the air-permeable hollow pipe (2) is provided with an air vent (21) which radially penetrates through the pipe wall of the air-permeable hollow pipe (2);
the aerosol-generating substrate rod (1), air-permeable hollow tube (2) and filter rod (3) are wrapped with a paper former and then a tipping paper is wrapped to obtain the aerosol-generating article.
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