KR20200030370A - An aerosol forming rod and a method of making the same - Google Patents

Abstract

According to an embodiment of the present invention, disclosed is a method of manufacturing an aerosol-generating rod including a flavoring agent, the method comprising the steps of: casting slurry from a casting box containing the slurry onto a manufacturing apparatus; drying a cast web of the cast slurry; spraying a liquid containing a capsule with the flavoring agent on the dried cast web through a first nozzle disposed on the manufacturing apparatus; manufacturing a sheet using the cast web; and wrapping the sheet with a wrapper to form an aerosol-generating rod. According to the present invention, it is possible to minimize process contamination problems during a flavoring process.

Description

An aerosol-generating rod and its manufacturing method {AN AEROSOL FORMING ROD AND A METHOD OF MAKING THE SAME}

The present invention relates to aerosol-generating rods and manufacturing methods, and specifically to aerosol-generating rods and manufacturing methods comprising a flavoring agent.

In recent years, there is an increasing demand for alternative methods to overcome the shortcomings of common cigarettes. For example, the demand for aerosol-generating methods is increasing as the aerosol-generating material in the cigarette is heated, rather than a method of burning the cigarette to produce an aerosol. Accordingly, research into a heated cigarette or a heated aerosol generating device has been actively conducted.

On the other hand, a flavoring agent must be included in the aerosol-generating rod to provide satisfaction to the user. However, when adding the flavoring agent in the conventional manufacturing process, various problems may occur. As an example of the problem, when adding a flavoring agent in a slurry manufacturing process, contamination of a process process may occur, and when adding a flavoring agent in a sheet manufacturing process, a property change may occur. Accordingly, there is a need for an aerosol-generating rod and manufacturing method to address this.

Various embodiments are directed to providing an aerosol-generating rod and manufacturing method comprising a flavoring agent. Through this, the technical problem to be achieved by the present disclosure is not limited to the technical problems as described above, and other technical problems may be inferred from the following embodiments.

As a means for solving the above-described technical problem, a method for manufacturing an aerosol-generating rod is a method for manufacturing an aerosol-generating rod containing a flavoring agent, wherein the slurry is cast from a casting box containing a slurry onto a manufacturing apparatus. Step, drying the casting web of the cast slurry, spraying a liquid containing the capsule with the flavoring agent on the dried casting web through a first nozzle disposed on the manufacturing apparatus, the The method may include manufacturing a sheet using a casting web, and packaging the sheet with a wrapper to form an aerosol-generating rod.

According to one embodiment, the step of manufacturing a sheet using the casting web may further include spraying the capsule with the flavourant through the second nozzle on the sheet.

According to one embodiment, the pressure of the nozzle is 5bar to 20bar, the diameter of the liquid particles may be 5um to 20um.

According to one embodiment, the flavoring agent may include at least one of water and different types of flavoring materials.

According to one embodiment, the capsule may be a microcapsule.

As a means for solving the above technical problem, an aerosol-generating rod manufactured by any one of the above methods may be provided.

The present disclosure can provide aerosol-generating rods and methods of making that include a flavoring agent. Specifically, a method for adding a microcapsule with a flavoring agent through a nozzle is provided. Accordingly, it is possible to minimize a process contamination problem in the scenting process and prevent the physical properties of the leaflets from changing.

1 is a view showing an example in which a cigarette is inserted into the holder.
2 is a block diagram showing an example of a cigarette.
3 is a view showing a method of manufacturing an aerosol-generating rod according to an embodiment.
4 is a view showing a method of manufacturing an aerosol-generating rod according to an embodiment.

The terminology used in the embodiments has been selected for general terms that are currently widely used while considering functions in the present invention, but this may vary depending on the intention or precedent of a person skilled in the art or the appearance of new technologies. In addition, in certain cases, some terms are arbitrarily selected by the applicant, and in this case, their meanings will be described in detail in the description of the applicable invention. Therefore, the terms used in the present invention should be defined based on the meanings of the terms and the contents of the present invention, not simply the names of the terms.

When a certain part of the specification “includes” a certain component, this means that other components may be further included instead of excluding the other component, unless specifically stated to the contrary.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those skilled in the art to which the present invention pertains may easily practice. However, the present invention can be implemented in many different forms and is not limited to the embodiments described herein.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

1 is a view showing an example in which a cigarette is inserted into the holder.

1, the cigarette 2 can be inserted into the holder (1). When the cigarette 2 is inserted, the heater 130 is located inside the cigarette 2. Therefore, the aerosol-generating material of the cigarette 2 is heated by the heated heater 130, and accordingly, an aerosol is generated.

The cigarette 2 may have a shape similar to a general combustion type cigarette. For example, the cigarette 2 may be divided into a first portion 201 containing an aerosol-generating material and a second portion 202 including a filter or the like.

The entire first portion 201 is inserted into the holder 1, and the second portion 202 can be exposed to the outside. Alternatively, only a portion of the first portion 201 may be inserted into the holder 1, or a portion of the first portion 201 and the second portion 202 may be inserted.

The user can inhale the aerosol in the state of the second part 202 with the mouth. At this time, the aerosol is generated by the external air passing through the first portion 201, and the generated aerosol passes through the second portion 202 and is delivered to the user's mouth.

External air may be introduced through at least one air passage formed in the holder 1. Alternatively, external air may be introduced through at least one hole formed on the surface of the cigarette 2.

2 is a block diagram showing an example of a cigarette.

Referring to FIG. 2, the cigarette 2 includes a tobacco rod 210, a first filter segment 221, a cooling structure 222, and a second filter segment 223. The first portion described above with reference to FIG. 1 includes a tobacco rod 210, and the second portion includes a first filter segment 221, a cooling structure 222, and a second filter segment 223.

2, the cigarette 2 may be packaged by wrappers 231, 232, 233, 234, 235, and 236. For example, the tobacco rod 210 is packaged by the first wrapper 231 and the first filter segment 221 is packaged by the second wrapper 232. Further, the cooling structure 222 is packaged by a third wrapper 233, and the second filter segment 223 is packaged by a fourth wrapper 234.

The fifth wrapper 235 may be enclosed around the first wrapper 231, the second wrapper 232, and the third wrapper 233. In other words, the cigarette rod 210 of the cigarette 2, the first filter segment 221, and the cooling structure 222 may be further packaged by the fifth wrapper 235. Also, the sixth wrapper 236 may be surrounded by at least a portion of the fifth wrapper 235 and the outer periphery of the fourth wrapper 234. In other words, at least a portion of the cooling structure 222 of the cigarette 2 and the second filter segment 223 may be further packaged by a sixth wrapper 236.

The first wrapper 231, the second wrapper 232, the fifth wrapper 235, and the sixth wrapper 236 may be made of general wrapping paper. For example, the first wrapper 231, the second wrapper 232, the fifth wrapper 235, and the sixth wrapper 236 may be porous wrapper or non-porous wrapper. For example, the thickness of the first wrapper 231 may be about 61 μm, the porosity may be about 15 CU, the thickness of the second wrapper 232 may be about 63 μm, and the porosity may be about 15 CU, but is not limited thereto. . Further, the thickness of the fifth wrapper 235 may be about 66 μm, the porosity may be about 10 CU, the thickness of the sixth wrapper 236 may be 66 μm, and the porosity may be about 17 CU, but is not limited thereto.

In addition, an aluminum foil may be further included on the inner surfaces of the first wrapper 231 and / or the second wrapper 232.

The third wrapper 233 and the fourth wrapper 234 may be made of hard wrapper. For example, the thickness of the third wrapper 233 may be about 158 μm, the porosity may be about 33 CU, the thickness of the fourth wrapper 234 may be about 155 μm, and the porosity may be about 46 CU, but is not limited thereto. .

The fifth wrapper 235 and the sixth wrapper 236 may be impregnated with a predetermined material. Here, as an example of a predetermined material, silicon may be applicable, but is not limited thereto. For example, silicone has characteristics such as heat resistance with little change with temperature, oxidation resistance without oxidation, resistance to various chemicals, water repellency to water, or electrical insulation. However, even if it is not silicon, any material having the above-described properties may be applied (or coated) to the fifth wrapper 235 and the sixth wrapper 236 without limitation.

The fifth wrapper 235 and the sixth wrapper 236 can prevent the cigarette 2 from burning. For example, when the cigarette rod 210 is heated by the heater 130, there is a possibility that the cigarette 2 is burned. Specifically, when the temperature rises above the ignition point of any one of the substances included in the cigarette rod 210, the cigarette 2 may be burned. Even in this case, since the fifth wrapper 235 and the sixth wrapper 236 contain a non-combustible material, the phenomenon that the cigarette 2 is burned can be prevented.

In addition, the fifth wrapper 235 can prevent the holder 1 from being contaminated by substances generated in the cigarette 2. By the user's puff, liquid substances can be produced in the cigarette 2. For example, the aerosol generated in the cigarette 2 is cooled by external air, whereby liquid substances (eg, moisture, etc.) may be generated. As the fifth wrapper 235 wraps the tobacco rod 210 and / or the first filter segment 221, the liquid substances generated in the cigarette 2 can be prevented from leaking out of the cigarette 2 You can. Therefore, the phenomenon that the inside of the holder 1 is contaminated by the liquid substances generated in the cigarette 2 can be prevented.

The diameter of the cigarette 2 is within the range of 5 mm to 9 mm, and the length may be about 45 mm, but is not limited thereto. For example, the length of the tobacco rod 210 is about 11.5 mm, the length of the first filter segment 221 is about 8 mm, the length of the cooling structure 222 is about 18.5 mm, the length of the second filter segment 223 May be about 7 mm, but is not limited thereto.

The structure of the cigarette 2 shown in FIG. 2 is only an example, and some components may be omitted. For example, one or more of the first filter segment 221, the cooling structure 222, and the second filter segment 223 may not be included in the cigarette 2.

Cigarette rod 210 includes an aerosol-generating material. For example, the aerosol-generating material may include at least one of glycerin, propylene glycol, ethylene glycol, dipropylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol and oleyl alcohol.

In addition, the tobacco rod 210 may contain other additives such as flavoring agents, wetting agents and / or organic acids. For example, flavoring agents are licorice, sucrose, fructose syrup, isosweet, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, Vanilla, lemon oil, orange oil, mint oil, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cinnamon, ylang-ylang, sage, spearmint, ginger, coriander or coffee. In addition, the wetting agent may include glycerin or propylene glycol.

As an example, the tobacco rod 210 may be filled with a reconstituent sheet (tobacco sheet).

As another example, the tobacco rod 210 may be filled with cuts. Here, tobacco cuts can be produced by finely cutting the leaflet sheet.

As another example, the tobacco rod 210 may be filled with a plurality of tobacco strands with a sheet-shaped leaf sheet shredded. For example, the tobacco rod 210 may be formed by combining a plurality of tobacco strands in the same direction (parallel) or randomly.

For example, the leaflet sheet may be manufactured by the following process. First, the aerosol-generating material (for example, glycerin, propylene glycol, etc.), a fragrance, a binder (for example, guar gum, xanthan gum, Carboxymethyl cellulose (CMC), etc.), water by crushing tobacco raw materials, water After making the slurry mixed with the like, a sheet-like leaf sheet is formed using the slurry. When making a slurry, natural pulp or cellulose may be added, and one or more binders may be mixed and used. On the other hand, tobacco strands may be produced by cutting or shredding the dried leaflet sheet.

The tobacco raw material may be tobacco leaf flakes, tobacco stems and / or tobacco fines generated during tobacco processing. Also, the leaflet sheet may contain other additives such as wood cellulose fiber.

5% to 40% of the aerosol-generating material may be added to the slurry, and 2% to 35% of the aerosol-generating material may remain on the leaflet sheet. Preferably, 5% to 30% of the aerosol-generating material may remain on the leaflet sheet.

In addition, before the process in which the cigarette rod 210 is packaged by the first wrapper 231, a flavoring solution such as menthol or moisturizer may be added by spraying it in the center of the cigarette rod 210.

The first filter segment 221 may be a cellulose acetate filter. For example, the first filter segment 221 may be a tube-shaped structure including a hollow inside. The length of the first filter segment 221 may be an appropriate length within the range of 4mm to 30mm, but is not limited thereto. Preferably, the length of the first filter segment 221 may be 8 mm, but is not limited thereto.

The diameter of the hollow included in the first filter segment 221 may be an appropriate diameter within the range of 2mm to 4.5mm, but is not limited thereto.

The hardness of the first filter segment 221 may be adjusted by adjusting the content of the plasticizer at the time of manufacture of the first filter segment 221.

In addition, the first filter segment 221 may be manufactured by inserting a structure such as a film or tube of the same or different material inside (eg, hollow).

The first filter segment 221 may be manufactured using cellulose acetate. Accordingly, when the heater 130 is inserted, the phenomenon that the internal material of the cigarette rod 210 is pushed back may be prevented, and a cooling effect of the aerosol may be generated.

The cooling structure 222 cools the aerosol generated by the heater 130 heating the tobacco rod 210. Therefore, the user can inhale the aerosol cooled to a suitable temperature.

The length or diameter of the cooling structure 222 may be variously determined according to the shape of the cigarette 2. For example, the length of the cooling structure 222 may be suitably employed within the range of 7mm to 20mm. Preferably, the length of the cooling structure 222 may be about 18.5 mm, but is not limited thereto.

The cooling structure 222 can be formed by a crimped polymer sheet. Here, the polymer sheet is selected from the group consisting of polyethylene (PE), polypropylene (PP), polyvinyl chloride (PVC), polyethylene terephthalate (PET), polylactic acid (PLA), cellulose acetate (CA) and aluminum foil. It can be made of materials. As the cooling structure 222 is formed by a crimped polymer sheet, the cooling structure 222 may include a plurality of channels extending in the longitudinal direction. Here, the channel means a passage through which a gas (eg, air or aerosol) passes.

For example, the cooling structure 222 can be formed from a material having a thickness between about 5 μm and about 500 μm, for example between about 10 μm and about 250 μm. In addition, the total surface area of the cooling structure 222 may be between about 300 mm ² / mm and about 1000mm ² / mm. Further, the aerosol cooling element can be formed from a material having a specific surface area of between about 10 mm ² / mg and about 100 mm ² / mg.

Meanwhile, the cooling structure 222 may include a thread containing a volatile flavor component. Here, the volatile flavor component may be menthol, but is not limited thereto. For example, the thread may be filled with a sufficient amount of menthol to provide menthol of 1.5 mg or more to the cooling structure 222.

The second filter segment 223 may be a cellulose acetate filter. The length of the second filter segment 223 may be suitably employed within a range of 4 mm to 20 mm. For example, the length of the second filter segment 223 may be about 7 mm, but is not limited thereto.

In the process of manufacturing the second filter segment 223, the flavor may be produced by spraying a fragrance liquid to the second filter segment 223. Alternatively, a separate fiber coated with a flavoring liquid may be inserted into the second filter segment 223. The aerosol generated in the tobacco rod 210 is cooled as it passes through the cooling structure 222, and the cooled aerosol is delivered to the user through the second filter segment 223. Accordingly, when a flavoring element is added to the second filter segment 223, an effect of enhancing the persistence of flavor delivered to the user may be generated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

3 is a view showing a method of manufacturing an aerosol-generating rod according to an embodiment.

Referring to FIG. 3, a method of manufacturing an aerosol-generating rod 210 may include spraying a liquid containing a capsule with a flavoring agent. The aerosol-generating rod 210 may correspond to the cigarette rod 210 described above. Specifically, although not shown, the manufacturing method of the aerosol-generating rod 210 includes casting the slurry from a casting box containing a slurry onto a manufacturing device, drying the cast web of the cast slurry, and the manufacturing device It may include the step of spraying a liquid containing the capsule with the flavoring agent on the dried casting web through the first nozzle 310 disposed on.

Meanwhile, in the method for manufacturing an aerosol-generating rod illustrated in FIG. 3, only components related to the present embodiment are illustrated. Therefore, it can be understood by those skilled in the art related to this embodiment that other general-purpose components or steps other than those illustrated in FIG. 3 may be further included in the method for manufacturing an aerosol-generating rod.

The aerosol-generating rod 210 refers to a cylindrical member having a circular, ellipsoidal or elliptical cross section. In addition, the aerosol-generating rod 210 may also include not only a sheet, but also a form using cuts.

More specifically, the aerosol-generating rod 210 may be made of a sheet or a cut of homogeneous tobacco material. Sheets or cuts of homogeneous tobacco material may be formed by agglomerating particulate tobacco obtained by grinding or crushing one or both of tobacco leaf lamina and tobacco leaf stems. Optionally, a sheet or cut filler of homogeneous tobacco material tobacco may consist of one or more tobacco dust, tobacco fines, and other particulate tobacco by-products formed, for example, during the handling, handling and shipping of tobacco. When the aerosol-generating rod 210 according to the invention is for use as an aerosol-forming substrate in a heated aerosol-generating article, the homogeneous tobacco material used to form the aerosol-generating rod 210 is preferably ground tobacco leaf lamina. Or on the other hand, it consists of particulate tobacco obtained by subdividing.

In addition, the homogeneous tobacco material may consist of one or more endogenous binders that are tobacco endogenous binders, one or more exogenous binders that are tobacco extrinsic binders, or combinations thereof, to help agglomerate particulate tobacco. Additionally or alternatively, the homogeneous tobacco material may consist of other additives, such as tobacco and non-tobacco fibers, aerosol formers, wetting agents, plasticizers, flavoring agents, fillers, aqueous and non-aqueous solvents, and combinations thereof. However, it is not limited thereto.

By the above process, a sheet including an aerosol-forming substrate may be formed, and may further include cutting the sheet to form cuts while the sheet is continuously moving on the manufacturing apparatus. At this time, each cut can be formed with an angular width of 0.5mm to 1.3mm.

Referring to FIG. 3, the first nozzle 310 disposed on the manufacturing apparatus along the moving direction of the casting web may spray a liquid containing a capsule with a flavoring agent onto the casting web. At this time, the capsule may be a microcapsule. The diameter of the microcapsules may be 1 μm or less, but is not limited thereto, and may have various sizes and shapes. The sprayed liquid may be cooling water for cooling the dried casting web, and specifically, the liquid may include cooling water and a capsule.

Flavoring agents included in the capsules are mint, chocolate, licorice, citrus and other fruity ingredients such as menthol, peppermint and spearmint, vanillin, ethyl vanillin, breath freshener flavor, spices like cinnamon, bergamot oil, geranium Oil, lemon oil, ginger oil, and tobacco flavors. Preferably, the flavoring agent may be menthol and at least one mint flavoring agent, but is not limited thereto.

These capsules are supplied to the casting web through the first nozzle 310. The pressure used for the first nozzle 310 is 5 to 20 bar, and the particle size of the sprinkled liquid particles has a diameter between 5 and 20 μm. The operating pressure and spray amount of ³ kg / cm ³ may be a nozzle having a spray amount of about 6 to 150 cc / min. In addition, referring to FIG. 3, a plurality of first nozzles 310 may be disposed.

On the other hand, it is possible to spray the fragrance itself instead of the capsule through the nozzle. For example, a liquid containing cooling water and a fragrance may be sprayed for cooling the casting web. However, in the case of spraying the flavoring agent itself, contamination may occur in the process and problems may arise in which the properties of the leaflets are changed. In order to solve the above-mentioned problem, it is appropriate to spray the microcapsules containing the flavoring agent rather than the flavoring agent itself.

4 is a view showing a method of manufacturing an aerosol-generating rod according to an embodiment.

Referring to FIG. 4, a method of manufacturing the aerosol-generating rod 210 includes spraying a capsule with a flavoring agent onto the sheet through the second nozzle 410 and packing the sheet with a wrapper 420 to produce an aerosol-generating rod. It may include the step of forming the (210). Capsules injected through the second nozzle 410 may be the same as capsules injected through the first nozzle 310 described above, and may include other flavoring agents. In addition, the capsule may be sprayed through the first nozzle 310 and the second nozzle 410 in the process of manufacturing the aerosol-generating rod 210, and either the first nozzle 310 or the second nozzle 410 The capsule may be dispensed only by. At this time, the capsule may be a microcapsule.

Meanwhile, in the method for manufacturing an aerosol-generating rod illustrated in FIG. 4, only components related to the present embodiment are illustrated. Therefore, it can be understood by those skilled in the art related to this embodiment that other general-purpose components or steps other than those illustrated in FIG. 3 may be further included in the method for manufacturing an aerosol-generating rod. Specifically, the aerosol-generating rod manufacturing method may further include cutting components such as a roller capable of adjusting the thickness of the sheet and a continuous rod into a plurality of rods.

Referring to FIG. 4, the second nozzle 410 is illustrated as being positioned just before the aerosol generating rod 210 is wrapped by the wrapper 420. However, the present invention is not limited thereto, and the second nozzle 410 may be disposed at any position where the capsule can be sprayed onto the sheet or each second.

Capsules with a flavoring agent may be sprayed through the second nozzle 410 disposed in the movement path of the sheet or the cut filler configured as described above. At this time, the flavoring agent may include not only pure water capable of controlling moisture, but also an alcohol-based flavoring substance that does not affect moisture. Alternatively, it may include at least one of different types of flavor materials.

The pressure used for the second nozzle 410 is 5 to 20 bar, and the particle size of the liquid particles to be sprayed has a diameter between 5 and 20 µm, a minimum working pressure of ³ kg / cm ³ , and a spray amount of 6 to 150 cc / min. It may be a nozzle having a spray amount. In addition, referring to FIG. 4, the second nozzle 410 is illustrated as one, but a plurality of second nozzles 410 may be disposed on the moving path of the sheet.

The capsule sprayed on the aerosol-generating rod may be melted by heat when the user applies heat for cigarette use, so that the user can feel the aroma when inhaling the cigarette. Alternatively, it is also possible that the capsule is decomposed by friction.

According to this aerosol-generating rod manufacturing method, by uniformly spraying a capsule with a flavoring agent through a nozzle, it is possible to prevent changes in the properties of the leaflets and the flavoring agent is uniformly distributed so that the user feels satisfied during smoking. In addition, according to the aerosol-generating rod manufacturing method, various products can be produced by changing a flavoring agent included in the capsule.

Those of ordinary skill in the art related to the present embodiment will understand that it may be implemented in a modified form without departing from the essential characteristics of the above-described substrate. Therefore, the disclosed methods should be considered in terms of explanation, not limitation. The scope of the present invention is shown in the claims rather than the foregoing description, and all differences within the equivalent range should be interpreted as being included in the present invention.

Claims (6)

A method for producing an aerosol-generating rod comprising a flavoring agent,
Casting the slurry from a casting box containing slurry onto a manufacturing apparatus;
Drying the casting web of the cast slurry;
Spraying a liquid containing a capsule with the flavoring agent on the dried casting web through a first nozzle disposed on the manufacturing apparatus;
Manufacturing a sheet using the casting web; And
A method of manufacturing an aerosol-generating rod, comprising wrapping the sheet with a wrapper to form an aerosol-generating rod. According to claim 1,
The step of manufacturing a sheet using the casting web,
A method of manufacturing an aerosol-generating rod further comprising spraying the capsule with the flavoring agent on the sheet through a second nozzle. According to claim 1,
The pressure of the nozzle is 5bar to 20bar, the diameter of the liquid particles is 5um to 20um, a method of manufacturing an aerosol-generating rod. According to claim 1,
The supplied flavoring agent comprises at least one of water and different types of flavoring materials, a method for producing an aerosol-generating rod. According to claim 1,
The capsule is a microcapsule, a method for producing an aerosol-generating rod. An aerosol-generating rod, produced by the method according to claim 1.

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