CN116210947A - Preparation method of blanking type tobacco rod type aerosol generating product - Google Patents
Preparation method of blanking type tobacco rod type aerosol generating product Download PDFInfo
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- CN116210947A CN116210947A CN202310444751.1A CN202310444751A CN116210947A CN 116210947 A CN116210947 A CN 116210947A CN 202310444751 A CN202310444751 A CN 202310444751A CN 116210947 A CN116210947 A CN 116210947A
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
- A24B15/10—Chemical features of tobacco products or tobacco substitutes
- A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
- A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
Abstract
The invention discloses a preparation method of a blanking type tobacco rod type aerosol generating product, which is characterized by comprising the following steps of: (A) Coating a coating layer on the surfaces of the tobacco particles in an environment with humidity less than 15%, so as to obtain the tobacco particles with the coating layer; (B) The blanking device (N1) loads tobacco particles with a coating layer into an aerosol generating product with a reserved cavity, then the aerosol generating product is transferred to an environment with humidity of more than 40%, the environment is kept stand, the coating layer is activated in the standing process, the tobacco particles are bonded into tobacco rods (9), and the tobacco rod type aerosol generating product is obtained, wherein the reserved cavity is the position of the tobacco rods (9). According to the method, after the surfaces of the tobacco particles are coated with the coating layers, the tobacco particles are directly blanked and filled into the cavities of the aerosol-generating products, then the aerosol-generating products are transferred to the environment with humidity of more than 40%, and are kept stand, the coating layers are activated in the standing process, and the tobacco particles are bonded into tobacco rods (9), so that the tobacco particles in the outer tube are formed into rods, and the problem of difficult blanking alignment is solved.
Description
Technical Field
The invention relates to the technical field of heating non-combustible cigarettes, in particular to a preparation method of a blanking type tobacco rod type aerosol generating product.
Background
With consumer importance on health problems and the increasing demand for personalized experience of cigarette products, the tobacco industry is continuously responding to consumer demand upgrading, and various smoking articles with tar and harm reducing effects are developed. Wherein, the heating cigarette is different from the traditional cigarette product in the cigarette heating mode, so that the heating cigarette can provide healthier smoking experience while meeting the sensory requirements of consumers on the cigarette product.
In the prior art, the fuming material of the granular heating cigarette is usually loose tobacco particles, and the loose tobacco particles cannot be fixed and are necessarily filled into the outer tube in a filling mode, so that the filling method is limited to batch filling of the individual tubes, and the production efficiency is low. In addition, the two sides of the tobacco particle section are required to be fixed with particles through sealing paper and a sealing piece, and the defective rate is high.
To solve the problem of bulk tobacco particles, some researchers have adhered loose tobacco particles together by an adhesive to form a rod in cylindrical form, then wrapped the rod with a wrapper, used alone as an aerosol generating substrate rod, and then combined with other components by a filling, crimping or compounding process to make an aerosol generating article. Because the smoke generating section is an integral cylindrical cigarette rod, the problem that tobacco particles fall off and scatter does not occur, and sealing films or sealing pieces on two sides of the smoke generating section are not needed. In addition, the aerosol-generating article is not limited to being packaged in combination with other components.
At present, the method for preparing the cylindrical tobacco core rod by using the scattered tobacco particles through hot melt adhesive is that the scattered tobacco particles are directly placed into a stirrer, a large amount of adhesive is added into the stirrer, the mixture is stirred and mixed uniformly, then extrusion molding or compression molding is carried out, the cigarette core rod is wrapped with cigarette paper, then the cigarette paper is independently used as an aerosol generating substrate rod, and then the aerosol generating substrate rod and other elements are combined through filling, rolling or compounding processes to prepare an aerosol generating product. The prepared tobacco rod has two problems, namely, the first problem of low porosity of the tobacco rod: 1. because a large amount of coating layer materials are added in the stirring process, after cooling, the cooled coating layer materials also exist in gaps between adjacent tobacco particles in the tobacco core rod, so that the porosity of the tobacco core rod is low, and the axial ventilation quantity is small; 2. if less coating layer material is directly added in the stirring and mixing process to avoid the first problem, the coating layer material is unevenly dispersed, tobacco particles with no coating layer on the surface are adjacent, adhesion is impossible, and the problem of scattering of the tobacco particles occurs; 3. a further, more critical problem is that the addition of a large amount of coating material also results in a large amount of coating material being applied to the surface of each tobacco particle, thereby severely affecting the release of the aerosol after the tobacco particles are heated, and in essence the coating is only intended to bind the scattered tobacco particles, but it is not desirable that the places where the tobacco particles do not bind are also covered by the coating material, affecting the release of the aerosol. The second aspect is the problem of time and labor consumption for rolling the cigarette paper after extrusion or compression molding: 1. if the molding is carried out by adopting an extrusion method, an extrusion device is additionally arranged, and the molding is carried out by adopting a compression molding method, and a demolding procedure is additionally arranged; 2. after the tobacco rod is obtained by molding, a rolling process is required to be additionally added, namely, two steps of processes are required for rod forming and rolling, so that the time and the labor are consumed; 3. if the tobacco rod is combined with other elements to prepare an aerosol generating product by a filling process after rod forming, the problem of difficult alignment exists when loose tobacco particles are filled into a cavity of the aerosol generating product due to the fact that the loose tobacco particles are formed into an integrated tobacco rod, and if the tobacco rod is not completely aligned with an empty tube, the outer tube is deformed or the tobacco rod is scattered, so that the yield is reduced.
Therefore, how to adhere bulk tobacco particles to form a smoking rod, and ensure the porosity and smoke amount of the smoking rod, and can be prepared by a blanking canning mode is a concern.
The present invention has been made to solve the above problems.
Disclosure of Invention
For the purposes of distinction, the paper tube wrapped in the present invention is referred to as an aerosol generating substrate rod, and the smoking material within the wrapper is referred to as a tobacco rod.
The first aspect of the invention provides a method for preparing a blanking type tobacco rod type aerosol generating product, which comprises the following steps:
(A) Coating a coating layer on the surfaces of the tobacco particles in an environment with humidity less than 15%, so as to obtain the tobacco particles with the coating layer;
(B) The blanking device N1 loads tobacco particles with a coating layer into an aerosol-generating product with a reserved cavity, then the aerosol-generating product is transferred to an environment with humidity of more than 40%, the environment is kept stand, the coating layer is activated in the standing process, the tobacco particles are bonded into tobacco rods 9, and the tobacco rod type aerosol-generating product is obtained, wherein the reserved cavity is the position of the tobacco rods 9.
The surface of the tobacco particles may be coated with only a part of the coating layer, or may be coated with the coating layer entirely.
Preferably, the coating layer is selected from one or more of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, sodium carboxymethyl cellulose, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, guar gum.
Preferably, the method for forming the coating layer on the surfaces of the tobacco particles in the step (A) comprises the following steps: adding tobacco particles into a stirring barrel, spraying coating layer materials while stirring, stopping spraying the coating layer materials after stirring for 5-25 minutes, and continuing stirring for 5-20 minutes; then, conveying the tobacco particles with the coating layer material on the surfaces into a fluidized bed, and air-drying with cold air for 5-10 minutes until the coating layer material is dried on the surfaces of the tobacco particles and a coating layer is formed; wherein the coating layer material accounts for 40-75% of the weight of the tobacco particles.
Preferably, in the step (a), the tobacco extract, the fumigant, the flavor and the aroma are added into the stirring barrel and stirred together with the tobacco particles and the coating layer material. The smoke quantity, the smoke concentration and the aroma quantity can be further improved by adding the tobacco extract, the fumigant and the essence and the spice, so that the smoke quality is improved.
Preferably, the porosity of the tobacco rod 9 is 40-80%.
Preferably, in the step (A), a second part of tobacco particles without a coating layer on the surface are added to the tobacco particles with the coating layer on the surface after fluidized bed drying, and stirring is continued for 5-15 minutes, wherein the second part of tobacco particles accounts for 5-30% of the total weight of the tobacco particles.
The method of batch stirring aims at increasing the porosity of the tobacco rod. If a batch of stirring is adopted, namely scattered tobacco particles are directly placed into a stirrer, a large amount of coating layer materials are added into the stirrer, and then the stirring and the mixing are uniform, and the tobacco particles are bonded into a rod by activating the coating layer after coating, the method has the following problems: the coating layer material after cooling also exists in the gaps between adjacent tobacco particles in the tobacco rod, which results in low porosity of the tobacco rod and small ventilation in the axial direction. In addition, a large amount of coating layer material is applied to the surface of each tobacco particle, so that the release of aerosol after the tobacco particles are heated is seriously affected.
The invention can adopt a batch stirring method to coat the surface of the tobacco particles with the coating layer, firstly, a part of the tobacco particles and the coating layer material are placed into a stirrer to be stirred, after the coating layer material is arranged on the surface part of the tobacco particles, a second part of the tobacco particles are added into the stirrer to be stirred, thus ensuring that only a part of the surfaces of the tobacco particles are provided with the coating layer material, the second part of the tobacco particles are added in the second batch, the surfaces of the second part of the tobacco particles are not provided with the coating layer material, or the coating materials are few, in the bonding process, the mixed tobacco particles are contacted, the bonding of the two tobacco particles can be realized only if the coating materials are arranged on the surface of one of the tobacco particles, and the coating materials are not required to be arranged on the two particles, so that the coating materials in gaps formed between the two particles after bonding can be prevented from blocking pores after cooling, and the axial ventilation and the porosity of the tobacco core rod are ensured on the basis of bonding.
Furthermore, the invention can also ensure that only part of the surfaces of the first part of tobacco particles are provided with the coating layer material by controlling the amount of the added coating layer material, and can well ensure that the tobacco particles are released from aerosol after being heated and ensure the smoke amount as no coating layer material is applied to the surfaces of the parts of the tobacco particles.
Preferably, in step (B) an environment with a humidity of more than 40% may be provided by means of a steam applying device.
Whether the steam applying device is arranged in the actual production process depends on the actual situation, if the water vapor in the ambient air is enough to ensure that the coating layer on the surfaces of the tobacco particles is activated, and the adhesiveness is enough to bond the scattered fuming particles, no additional steam applying device is needed. If the amount of water vapor in the ambient air is insufficient, a vapor applying device can be additionally arranged to provide water vapor so as to ensure the ambient humidity.
The control requirement of the environmental humidity is matched with the standing time, and the two are combined to achieve the effect that tobacco particles are bonded into a rod after standing. If the tobacco particles are not bonded and formed or loose after standing for a certain time, the loose tobacco particles can be bonded and formed by two means of prolonging the standing time or improving the ambient humidity.
A second aspect of the present invention provides an aerosol-generating article comprising a tobacco rod prepared by the method of the first aspect of the present invention, comprising an outer tube 3, and a wrapper tube 4, a plugging member 5, and a filter member 6 located within the outer tube 3;
the cavity of the wrapping pipe 4 is internally provided with a tobacco rod 9, and the wrapping pipe 4 is formed by rolling composite paper; the composite paper comprises a paper layer 1 and an adsorption layer 2 close to the tobacco rod 9.
Preferably, the adsorption layer 2 comprises a porous material selected from activated carbon, molecular sieves, carbon molecular sieves, alumina, calcium silicate powder; the application amount of the adsorption layer 2 is 20-90g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The preparation method of the composite paper comprises the steps of firstly preparing the paper layer 1, and then coating a mixture containing a porous material and an adhesive on the paper layer 1 by a calendaring coating method; alternatively, a mixture comprising a porous material and a binder is applied to the paper layer 1 in a papermaking process during the preparation of the paper layer 1. The binder is selected from one or more of CMC, CM80, chitosan, hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, sodium carboxymethylcellulose, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol and guar gum.
The adsorption layer on the composite paper material is not a thin layer, but has a certain thickness. The composite paper material of the invention has the advantages that the composite paper material is used for wrapping the tobacco rod 9: 1. in order to make the coating 1 layer sticky, the coating needs to be activated under the environment of high humidity, and the adsorption layer can absorb the moisture in the environment to prevent the paper layer from being wetted, and on the other hand, the adsorption layer can also adsorb the moisture in the coating adhesive in the sticky fuming stick. 2. Moisture in the smoke materials in the cigarette storage process permeates to the outer side of the cigarette paper tube to generate yellow spots. In addition, can add fuming agent, essence spices etc. in the fuming material, long-time in-process of placing, the fuming agent in the fuming material can carry essence spices and permeate the paper tube outside, produces the macula, influences the paper tube outward appearance, and the adsorbed layer can adsorb the material such as moisture or the fuming agent that oozes in the fuming material, prevents that it from permeating to the paper tube outer wall to prevent the production of macula.
In the invention, the preparation method of the tobacco particles can be used for referencing the prior art, for example, tobacco powder, a smoke agent and the like are mixed into slurry and then granulated.
Preferably, a cavity structure 7 is also provided between the blocking member 5 and the filter member 6.
Preferably, the cavity structure 7 further comprises a functional material; and/or the number of the groups of groups,
the cavity structure 7 also comprises a hollow pipe function piece 8. The functional material can be any substance with the functions of temperature reduction and aroma enhancement in the prior art.
The composite paper material is rolled into a paper tube and then used as an empty tube function piece 8. The adsorption layer can adsorb functional substances such as essence and spice or fuming agent, and the functional substances are adsorbed into the adsorption layer, so that the adsorption layer can play a role in slow release in the sucking process, and the consistency of the fragrance before and after the sucking is ensured.
Preferably, the outer tube 3 has a vent hole 31 extending radially through the outer tube 3. When the hollow cavity structure is internally provided with the hollow pipe functional piece 8, the vent holes penetrate through the outer pipe and the hollow pipe functional piece 8 at the same time. The purpose of the ventilation holes is to introduce air into the aerosol-generating article, on the one hand to reduce the temperature of the aerosol and on the other hand to reduce the resistance to draw, so that it is determined whether ventilation holes are required or not depending on the actual aerosol temperature and resistance to draw. The vent holes can of course be located axially on the blocking member or on the cooling member (i.e. the cavity structure). When the vent hole is required to be provided, the vent hole is preferably formed by punching, and of course, the air-permeable paper may be selected as the outer tube instead of punching, so long as air can be introduced into the aerosol-generating article.
The loose tobacco particles which are not bonded into rods when being filled into aerosol-generating products are blanked, so that the plugging component downstream of the smoke particles is required to plug the loose tobacco particles. More preferably, the blocking member is selected from fluted corrugated members having gathered sheet bars therein, or multi-layered corrugated structures, and the like, and alternative blocking member structures may be referred to as patent application No. 202210706093.4, entitled aerosol generating article with composite form blocking member, or patent application No. 202210706095.3, entitled aerosol generating article with multi-layered fluted corrugated structures, or patent application No. 202210707599.7, entitled aerosol generating article with variable diameter airflow channel blocking member, or patent application No. 202211037571.3, entitled aerosol generating article with porous aerosol generating substrate bar form blocking member.
Preferably, the method of preparing the aerosol-generating article with the cavity reserved is: the outer tube is used for rolling the wrapping tube 4, the plugging component and the filtering component by a composite rolling method, so that the aerosol generating product with the reserved cavity is obtained. When the empty pipe functional piece 8 is arranged between the plugging member and the filtering member, the pipe 4, the plugging member 5, the empty pipe functional piece 8 and the filtering member 6 are sequentially compositely wrapped during rolling.
Compared with the prior art, the invention has the following beneficial effects:
1. after the coating layer is coated on the tobacco particles, if a conventional method is adopted, the tobacco rod is extruded or molded first, and then the cigarette paper is rolled, two steps of procedures are needed, and the time and the labor are consumed. If the tobacco particles are filled into the cavity of the aerosol-generating product through the blanking method, the problem of difficult alignment exists, but if the tobacco particles are not formed into rods, the tobacco particles are directly filled into the cavity of the aerosol-generating product and then formed into rods, and the problem of incapability of forming rods exists. In addition, as the coating layer material is sensitive to humidity, the humidity of water vapor in the air can activate the coating layer material to improve the viscosity, if the tobacco particles are not immediately formed into tobacco rods after being coated with the coating layer, the tobacco particles with the coating layer are required to be stored in a sealing way, the storage condition is strict, and the material waste caused by improper storage is easy to occur. According to the method, after the surfaces of the tobacco particles are coated with the coating layers, the tobacco particles are directly blanked and filled into the cavities of the aerosol-generating products, then the aerosol-generating products are transferred to the environment with the humidity of more than 15%, and are kept stand, the coating layers are activated in the standing process, and the tobacco particles are bonded into the tobacco rods 9.
2. The invention controls the binding force of the coating layer by controlling the humidity, thereby controlling the fluidity of the tobacco particles with the coating layer. When the humidity is less than 15%, the coating layer has no adhesion, the tobacco particles with the coating layer are completely loose and flow, and the blanking process can be completed, but when the humidity is more than 40%, the deliquescence activation viscosity of the coating layer is increased, and loose tobacco particles are adhered into a fuming body, and the tobacco particles are not flowable. In addition, the deliquescence of the coating layer is irreversible, and when the deliquescence viscosity of the coating layer is increased, loose tobacco particles are adhered into a fuming body, even if the humidity is reduced, the viscosity is not lost, and the shape of the coating layer is recovered.
3. The invention can adopt a batch stirring method to coat the surface of the tobacco particles with the coating layer, firstly, a part of the tobacco particles and the coating layer material are placed into a stirrer to be stirred, after the coating layer material is arranged on the surface part of the tobacco particles, a second part of the tobacco particles are added into the stirrer to be stirred, thus ensuring that only a part of the surfaces of the tobacco particles are provided with the coating layer material, the second part of the tobacco particles are added in the second batch, the surfaces of the second part of the tobacco particles are not provided with the coating layer material, or the coating materials are few, in the bonding process, the mixed tobacco particles are contacted, the bonding of the two tobacco particles can be realized only if the coating materials are arranged on the surface of one of the tobacco particles, and the coating materials are not required to be arranged on the two particles, so that the coating materials in gaps formed between the two particles after bonding can be prevented from blocking pores after cooling, and the axial ventilation and the porosity of the tobacco core rod are ensured on the basis of bonding.
4. According to the invention, by controlling the amount of the added coating layer material, only part of the surfaces of the first part of tobacco particles are provided with the coating layer material, and as the coating layer material is not applied to the surfaces of the parts of the tobacco particles, the release of aerosol after the tobacco particles are heated can be well ensured, and the smoke amount is ensured.
5. The composite paper material has two forms used on aerosol generating products, the first form is to wrap a tobacco rod, and moisture in a smoking material permeates to the outer side of a cigarette paper tube in the process of storing cigarettes to generate yellow spots. In addition, can add fuming agent, essence spices etc. in the fuming material, long-time in-process of placing, the fuming agent in the fuming material can carry essence spices and permeate the paper tube outside, produces the macula, influences the paper tube outward appearance, and the adsorbed layer can adsorb the material such as moisture or the fuming agent that oozes in the fuming material, prevents that it from permeating to the paper tube outer wall to prevent the production of macula. The other is that the adsorption layer on the composite paper material of the invention is not a thin layer but has a certain thickness after being rolled into a paper tube and used as a cooling element for the hollow tube function piece 8. The adsorption layer can adsorb functional substances such as essence and spice or fuming agent, and the functional substances are adsorbed into the adsorption layer, so that the adsorption layer can play a role in slow release in the sucking process, and the consistency of the fragrance before and after the sucking is ensured.
6. On one hand, the adsorption layer can avoid the yellow spot problem caused by the extravasation of the smoke agent or essence perfume in the smoke material, and on the other hand, the smoke agent or essence perfume in the smoke material is adsorbed into the porous material of the adsorption layer, and the smoke agent or essence perfume in the porous material is further released along with the continuous heating of the tobacco rod, so that the fragrance keeping effect is realized.
Drawings
FIG. 1 is a schematic structural diagram of a composite paper.
Fig. 2 is a process diagram of the preparation of a blanked tobacco rod type aerosol-generating article.
Fig. 3 is a schematic view of the three-stage cigarette structure of embodiment 1.
Fig. 4 is a schematic view of a four-section cigarette with a cavity structure in embodiment 2.
Reference numerals in the description of the drawings: 1-paper layer, 2-adsorption layer, 3-outer tube, 4-wrapping tube, 5-blocking component, 6-filtering component, 7-cavity structure, 8-empty tube functional component, 9-tobacco rod and 31-vent;
and N1-blanking device.
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 present invention and should not be construed as limiting the scope of the invention. The specific techniques or conditions are not identified in the examples and are performed according to techniques or conditions described in the literature in this field or according to the product specifications. The materials or equipment used are conventional products available from commercial sources, not identified to the manufacturer.
As used herein, the singular forms "a", "an", "the" and "the" are intended to include the plural forms as well, unless expressly stated otherwise, as understood by those skilled in the art. 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 wireless connections.
In the description of the present invention, unless otherwise indicated, the meaning of "a plurality" is two or more. The orientation or state relationship indicated by the terms "inner", "upper", "lower", etc. are orientation or state relationship based on the drawings, are merely for convenience of description and simplification of description, and do not indicate or imply that the apparatus or element in question must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the invention.
In the description of the present invention, it should be noted that, unless explicitly stated and limited otherwise, the terms "mounted," "connected," and "provided" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention is understood by those of ordinary skill in the art according to the specific circumstances.
It will be understood by those skilled in the art that, unless otherwise defined, all terms used herein, including technical and scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which this invention 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
The aerosol-generating article of the present embodiment comprises an outer tube 3, and a wrapper tube 4, a plugging member 5, and a filter member 6 located within the outer tube 3;
the cavity of the wrapping pipe 4 is internally provided with a tobacco rod 9, and the wrapping pipe 4 is formed by rolling composite paper; the composite paper comprises a paper layer 1 and an adsorption layer 2 close to the tobacco rod 9.
The adsorption layer 2 is activated carbon, and the application amount of the adsorption layer 2 is 40g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The composite paper is prepared by preparing the paper layer 1 and then coating a mixture comprising a porous material and a binder onto the paper layer 1 by a calendaring coating method. The binder is selected from CMC.
The outer tube 3 has a vent hole 31 formed therein and extending radially through the outer tube 3. The vent is axially located on the closure member.
The preparation method of the blanking type tobacco rod type aerosol generating product comprises the following steps:
(A) Coating a coating layer on the surfaces of the tobacco particles in an environment with humidity less than 15%, so as to obtain the tobacco particles with the coating layer;
(B) The blanking device N1 loads tobacco particles with a coating layer into an aerosol-generating product with a reserved cavity, then the aerosol-generating product is transferred to an environment with humidity of more than 40%, the environment is kept stand, the coating layer is activated in the standing process, the tobacco particles are bonded into tobacco rods 9, and the tobacco rod type aerosol-generating product is obtained, wherein the reserved cavity is the position of the tobacco rods 9.
The surface of the tobacco particles may be coated with only a part of the coating layer, or may be coated with the coating layer entirely.
The coating layer is selected from hydroxypropyl methylcellulose.
The method for forming the coating layer on the surfaces of the tobacco particles in the step (A) comprises the following steps: adding tobacco particles into a stirring barrel, spraying coating layer materials while stirring, stopping spraying the coating layer materials after stirring for 15 minutes, and continuing stirring for 10 minutes; then, conveying the tobacco particles with the coating layer material on the surfaces into a fluidized bed, and air-drying with cold air for 10 minutes until the coating layer material is dried on the surfaces of the tobacco particles and a coating layer is formed; wherein the coating layer material accounts for 70 percent of the weight of the tobacco particles.
In the step (A), the tobacco extract, the fumigant, the essence and the spice can be added into the stirring barrel and stirred together with the tobacco particles and the coating layer material. The smoke quantity, the smoke concentration and the aroma quantity can be further improved by adding the tobacco extract, the fumigant and the essence and the spice, so that the smoke quality is improved.
The porosity of the tobacco rod 9 is 70%.
And (A) adding a second part of tobacco particles without the coating layer on the surface into the tobacco particles with the coating layer on the surface after fluidized bed drying, and continuously stirring for 10 minutes, wherein the second part of tobacco particles account for 5% of the total weight of the tobacco particles.
The steam applying device may be used in step (B) to provide an environment having a humidity of greater than 40%.
Example 2
The aerosol generating article of this example differs from example 1 in that:
a cavity structure 7 is also provided between the blocking member 5 and the filter member 6.
The cavity structure 7 also comprises a hollow pipe function piece 8.
In this embodiment, the composite paper is rolled into a paper tube and then used as the hollow tube function member 8. The adsorption layer can adsorb functional substances such as essence and spice or fuming agent, and the functional substances are adsorbed into the adsorption layer, so that the adsorption layer can play a role in slow release in the sucking process, and the consistency of the fragrance before and after the sucking is ensured.
The outer tube 3 has a vent hole 31 formed therein and extending radially through the outer tube 3. The vent is axially positioned on the cavity structure.
Claims (10)
1. A method for preparing a blanking type tobacco rod type aerosol generating product, which is characterized by comprising the following steps:
(A) Coating a coating layer on the surfaces of the tobacco particles in an environment with humidity less than 15%, so as to obtain the tobacco particles with the coating layer;
(B) The blanking device (N1) loads tobacco particles with a coating layer into an aerosol-generating product with a reserved cavity, then the aerosol-generating product is transferred to an environment with humidity of more than 40%, the environment is kept stand, the coating layer is activated in the standing process, the tobacco particles are bonded into tobacco rods (9), and the tobacco rod type aerosol-generating product is obtained, wherein the reserved cavity is the position of the tobacco rods (9).
2. The method of claim 1, wherein the coating layer is selected from one or more of hydroxypropyl methylcellulose, hydroxypropyl cellulose, povidone, sodium carboxymethyl cellulose, microcrystalline cellulose, polyethylene glycol, polyvinyl alcohol, guar gum;
in the step (A), the tobacco extract, the fumigant, the essence and the spice, the tobacco particles and the coating layer material can be added into the stirring barrel and stirred;
the porosity of the tobacco rod (9) is 40-80%.
3. The method of claim 1, wherein the coating layer is formed on the surfaces of the tobacco particles in step (a) by: adding tobacco particles into a stirring barrel, spraying coating layer materials while stirring, stopping spraying the coating layer materials after stirring for 5-25 minutes, and continuing stirring for 5-20 minutes; then, conveying the tobacco particles with the coating layer material on the surfaces into a fluidized bed, and air-drying with cold air for 5-10 minutes until the coating layer material is dried on the surfaces of the tobacco particles and a coating layer is formed; wherein the coating layer material accounts for 40-75% of the weight of the tobacco particles.
4. The method according to claim 1, wherein in step (a), a second portion of the tobacco particles having no coating layer on the surface thereof is added to the tobacco particles having a coating layer on the surface thereof after fluidized bed drying, and stirring is continued for 5 to 15 minutes, wherein the second portion of the tobacco particles accounts for 5 to 30% of the total weight of the tobacco particles.
5. The method of claim 1, wherein the step (B) is performed in an environment having a humidity greater than 40% using a steam applying device.
6. An aerosol-generating article prepared by the method according to any one of claims 1 to 5, characterized in that it comprises an outer tube (3), and a wrapper tube (4), a plugging member (5), and a filtering member (6) located within the outer tube (3);
the cavity of the wrapping pipe (4) is internally provided with a tobacco rod (9), and the wrapping pipe (4) is formed by rolling composite paper; the composite paper comprises a paper layer (1) and an adsorption layer (2) close to the tobacco rod (9).
7. Aerosol-generating article according to claim 6, characterized in that the adsorption layer (2) comprises a porous material in the form of a powder having a mesh number of 80-1000 mesh, the porous material being selected from activated carbon, molecular sieves, carbon molecular sieves, alumina or calcium silicate; the application amount of the adsorption layer (2) is 20-90g/cm 3 The method comprises the steps of carrying out a first treatment on the surface of the The preparation method of the composite paper comprises the steps of firstly preparing the paper layer (1), and then coating a mixture containing a porous material and an adhesive on the paper layer (1) by a calendaring coating method; alternatively, a mixture comprising a porous material and a binder is applied to the paper layer (1) during the papermaking process during its preparation(1) And (3) upper part.
8. Aerosol-generating article according to claim 6, characterized in that between the blocking member (5) and the filter member (6) there is also a cavity structure (7);
the cavity structure (7) also contains functional materials; and/or the number of the groups of groups,
the hollow cavity structure (7) also comprises an empty pipe function piece (8).
9. Aerosol-generating article according to claim 6, characterized in that the outer tube (3) has a vent hole (31) extending radially through the outer tube (3).
10. An aerosol-generating article according to claim 6, wherein the method of preparing the aerosol-generating article with the cavity reserved comprises: and rolling the wrapping pipe (4), the plugging component (5) and the filtering component (6) by using an outer pipe (3) through a composite rolling method to obtain the aerosol generating product with the reserved cavity.
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| CN202310444751.1A CN116210947A (en) | 2023-04-24 | 2023-04-24 | Preparation method of blanking type tobacco rod type aerosol generating product |
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| CN202310444751.1A CN116210947A (en) | 2023-04-24 | 2023-04-24 | Preparation method of blanking type tobacco rod type aerosol generating product |
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