KR102414660B1 - An aerosol forming rod comprising a wrapper to which an adhesive material is applied and a method of making the same - Google Patents

Abstract

According to some embodiments, the step of applying an adhesive material to a first adhesive portion formed along the longitudinal direction of the wrapper from one end of the wrapper and having a first width in a direction perpendicular to the longitudinal direction of the wrapper, between one end and the other end of the wrapper applying an adhesive material to at least one second adhesive portion formed along the longitudinal direction of the wrapper and having a second width in a direction perpendicular to the longitudinal direction of the wrapper, supplying an aerosol-generating material to the first adhesive portion Disclosed is a method for manufacturing an aerosol-forming rod comprising the step of fixing one end and the other end of a wrapper with an applied adhesive material, and surrounding the aerosol-generating material with the wrapper.

Description

AN AEROSOL FORMING ROD COMPRISING A WRAPPER TO WHICH AN ADHESIVE MATERIAL IS APPLIED AND A METHOD OF MAKING THE SAME

The present disclosure relates to an aerosol-forming rod comprising a wrapper applied with an adhesive material and a method of making it.

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

On the other hand, if the aerosol-generating material in the aerosol-forming rod is not fixed to the wrapper surrounding the aerosol-generating material, various problems may occur. As an example of the problem, when the aerosol-generating rod is removed from the aerosol-generating device after smoking has been finished, the aerosol-generating material in the aerosol-forming rod may remain in the aerosol-generating device. Accordingly, there is a need to ensure that the aerosol generating material is immobilized with the wrapper.

Patent Document 1: Japanese Unexamined Patent Publication No. 2017-511686 (2017. 4. 27.)
Patent Document 2: Korean Patent Publication No. 10-0615467 (Aug. 25, 2006)

Various embodiments are directed to providing an aerosol-forming rod comprising a wrapper having an adhesive material applied thereto and a method of making it. The present invention applies an adhesive material between one end and the other end as well as one end of the wrapper so that the aerosol generating material is fixed to the wrapper. Through this, it is possible to solve problems that occur when the aerosol generating material is not fixed to the wrapper.

On the other hand, the technical problems to be achieved by the present disclosure are 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, the method for manufacturing an aerosol-forming rod comprising an aerosol-generating material and a wrapper is formed along the longitudinal direction of the wrapper from one end of the wrapper, and is formed in a direction perpendicular to the longitudinal direction of the wrapper. applying an adhesive material to the first adhesive part having a width of 1; applying an adhesive material to at least one second adhesive portion formed between one end and the other end of the wrapper along the length direction of the wrapper and having a second width in a direction perpendicular to the length direction of the wrapper; supplying an aerosol generating material; and fixing one end and the other end of the wrapper by the adhesive material applied to the first adhesive part, and enclosing the aerosol-generating material with the wrapper.

In the method described above, the enclosing step may secure to the wrapper by placing at least a portion of the supplied aerosol generating material on the second adhesive portion.

In the method of manufacturing an aerosol-forming rod, the number of second adhesive parts is 1 to 3, and when there are a plurality of second adhesive parts, the second adhesive parts may be positioned to be spaced apart from each other at intervals of 5 mm to 15 mm.

In the method of making the aerosol-forming rod, the first width and the second width may be between 1 mm and 4 mm.

In the method of manufacturing an aerosol-forming rod, the adhesive material may be composed of at least one of ethylene-vinyl acetate (EVAc), hot melt, and polyvinly alcohol (PVAc).

In addition, the aerosol-forming rod according to another aspect is formed along the longitudinal direction of the wrapper from one end of the wrapper, applying an adhesive material to the first adhesive portion having a first width in a direction perpendicular to the longitudinal direction of the wrapper; applying an adhesive material to at least one second adhesive portion formed between one end and the other end of the wrapper along the length direction of the wrapper and having a second width in a direction perpendicular to the length direction of the wrapper; supplying an aerosol generating material; And fixing one end and the other end of the wrapper by the adhesive material applied to the first adhesive part, it may be prepared by the step of surrounding the aerosol material with the wrapper.

The present disclosure may provide an aerosol-forming rod comprising a wrapper applied with an adhesive material and a method of making it. Specifically, the aerosol-generating material supplied on the wrapper by applying an adhesive material between one end and the other end as well as one end of the wrapper may be adhered to the second adhesive portion and fixed to the wrapper. Accordingly, in the present invention, when the aerosol-forming rod is removed from the aerosol-generating device after smoking is finished, the ratio of the aerosol-generating material remaining inside the aerosol-generating device can be significantly reduced.

1 is a view illustrating an example in which a cigarette is inserted into a holder.
2 is a configuration diagram illustrating an example of a cigarette.
3A is a view showing an example of a wrapper having an adhesive material applied to one end thereof.
FIG. 3B is a diagram illustrating an example in which the wrapper of FIG. 3A surrounds an aerosol generating material;
4A is a view showing an example of a wrapper having one end and an adhesive material applied between the one end and the other end.
FIG. 4B is a diagram illustrating an example in which the wrapper of FIG. 4A surrounds an aerosol generating material;

The terms used in the embodiments are selected as currently widely used general terms as possible while considering the functions in the present invention, but may vary depending on the intention or precedent of a person skilled in the art, the emergence of new technology, and the like. In addition, in a specific case, there is a term arbitrarily selected by the applicant, and in this case, the meaning will be described in detail in the description of the corresponding invention. Therefore, the term used in the present invention should be defined based on the meaning of the term and the overall content of the present invention, rather than the name of a simple term.

In the entire specification, when a part “includes” a certain element, it means that other elements may be further included, rather than excluding other elements, unless otherwise stated.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings so that those of ordinary skill in the art can easily carry out the embodiments of the present invention. However, the present invention may be implemented in several 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 illustrating an example in which a cigarette is inserted into a holder.

Referring to FIG. 1 , a cigarette 2 may be inserted into a holder 1 . When the cigarette 2 is inserted, the heater 130 is positioned inside the cigarette 2 . Accordingly, the aerosol-generating material of the cigarette 2 is heated by the heated heater 130 , thereby generating an aerosol.

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

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

The user may inhale the aerosol while holding the second part 202 with the mouth. At this time, the aerosol is generated when the external air passes through the first part 201 , and the generated aerosol passes through the second part 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 configuration diagram illustrating an example of a cigarette.

Referring to FIG. 2 , the cigarette 2 includes a tobacco rod 220 , a first filter segment 221 , a cooling structure 222 and a second filter segment 223 . The first part described above with reference to FIG. 1 includes a tobacco rod 220 , and the second part includes a first filter segment 221 , a cooling structure 222 and a second filter segment 223 .

Referring to FIG. 2 , the cigarette 2 may be wrapped by wrappers 231 , 232 , 233 , 234 , 235 and 236 . For example, the tobacco rod 220 is wrapped by a first wrapper 231 , and the first filter segment 221 is wrapped by a second wrapper 232 . Further, the cooling structure 222 is wrapped by a third wrapper 233 , and the second filter segment 223 is wrapped by a fourth wrapper 234 .

The fifth wrapper 235 may be surrounded by the first wrapper 231 , the second wrapper 232 , and the third wrapper 233 . In other words, the tobacco rod 220 , the first filter segment 221 and the cooling structure 222 of the cigarette 2 may be further wrapped by the fifth wrapper 235 . In addition, the sixth wrapper 236 may be surrounded by at least a portion of the fifth wrapper 235 and the outside 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 wrapped by the 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 or non-porous wrapping paper. For example, the thickness of the first wrapper 231 may be about 61 μm and the porosity may be about 15 CU, and 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. . In addition, the thickness of the fifth wrapper 235 may be about 66 μm and the porosity may be about 10 CU, and 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 surface 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 wrapping paper. For example, the thickness of the third wrapper 233 may be about 158 μm and the porosity may be about 33 CU, and 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. .

A predetermined material may be internally added to the fifth wrapper 235 and the sixth wrapper 236 . Here, an example of the predetermined material may be silicon, but is not limited thereto. For example, silicon has properties 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 characteristics 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 may prevent the cigarette 2 from burning. For example, when the tobacco rod 220 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 materials included in the tobacco rod 220, the cigarette 2 may be burned. Even in this case, since the fifth wrapper 235 and the sixth wrapper 236 include a non-combustible material, the burning phenomenon of the cigarette 2 can be prevented.

In addition, the fifth wrapper 235 may prevent the holder 1 from being contaminated by substances produced in the cigarette 2 . By the user's puff, liquid substances may be created in the cigarette 2 . For example, liquid substances (eg, moisture, etc.) may be generated by cooling the aerosol generated in the cigarette 2 by the outside air. As the fifth wrapper 235 wraps the tobacco rod 220 and/or the first filter segment 221 , liquid substances produced within the cigarette 2 will be prevented from leaking out of the cigarette 2 . can Accordingly, the phenomenon that the inside of the holder 1 is contaminated by the liquid substances produced 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 220 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, and the length of the second filter segment 223 is about 18.5 mm. may be about 7 mm, but is not limited thereto.

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

Tobacco rod 220 includes an aerosol generating material. For example, the aerosol generating material may comprise 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 220 may contain other additives such as flavoring agents, wetting agents and/or organic acids. For example, flavoring agents include 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 and the like. In addition, the wetting agent may include glycerin or propylene glycol, and the like.

As an example, the tobacco rod 220 may be filled with a reconstituent 　 tobacco sheet.

As another example, the tobacco rod 220 may be filled with cut filler. Here, tobacco cut fillers can be produced by cutting leaflet sheets.

As another example, the tobacco rod 310 may be filled with a plurality of tobacco strands in which the leaflet sheet is chopped. For example, the tobacco rod 310 may be formed by combining a plurality of tobacco strands in the same direction (parallel) to each other or randomly.

For example, the plate-like sheet may be manufactured by the following process. First, the tobacco raw material is pulverized to produce an aerosol-generating material (eg, glycerin, propylene glycol, etc.), a flavoring solution, a binder (eg, guar gum, xanthan gum, carboxymethyl cellulose (CMC), etc.), water After making a slurry in which the etc. are mixed, a plate-like sheet is formed using the slurry. When making the 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 leaf-leaf sheet.

The tobacco raw material may be tobacco leaf flakes, tobacco stems and/or tobacco fines generated during tobacco processing. In addition, the lamellar sheet may contain other additives such as wood cellulose fibers.

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 in the platelet sheet. Preferably, 5% to 30% of the aerosol generating material may remain in the leaflet sheet.

In addition, before the process in which the tobacco rod 220 is packaged by the first wrapper 231 , a flavoring liquid such as menthol or a moisturizing agent may be sprayed and added to the center of the tobacco rod 220 .

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 therein. The length of the first filter segment 221 may be an appropriate length within the range of 4 mm to 30 mm, 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 2 mm to 4.5 mm, but is not limited thereto.

When the first filter segment 221 is manufactured, the hardness of the first filter segment 221 may be adjusted by adjusting the content of the plasticizer.

In addition, the first filter segment 221 may be manufactured by inserting a structure such as a film or a tube made 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 inner material of the tobacco rod 220 may be prevented from being pushed back, 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 220 . Thus, 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 appropriately employed within the range of 7 mm to 20 mm. Preferably, the length of the cooling structure 222 may be about 18.5 mm, but is not limited thereto.

The cooling structure 222 may 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 material. As the cooling structure 222 is formed by the crimped polymer sheet, the cooling structure 222 may include a plurality of channels extending in the longitudinal direction. Here, a channel means a passage through which a gas (eg, air or aerosol) passes.

For example, the cooling structure 222 may be formed from a material having a thickness of between about 5 μm and about 500 μm, such as between about 10 μm and about 250 μm. Also, the total surface area of the cooling structure 222 may be between about 300 mm ² /mm and about 1000 mm ² /mm. Further, the aerosol cooling element may 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 at least 1.5 mg of menthol 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 appropriately employed within the 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 generated by spraying a flavoring liquid to the second filter segment 223 . Alternatively, a separate fiber to which the flavoring liquid is applied may be inserted into the second filter segment 223 . The aerosol generated by the tobacco rod 220 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 the flavoring element is added to the second filter segment 223 , the effect of enhancing the durability of the flavor delivered to the user may occur.

FIG. 3A is a diagram illustrating an example of a wrapper having an adhesive material applied to one end thereof, and FIG. 3B is a diagram illustrating an example in which the wrapper of FIG. 3A surrounds an aerosol generating material.

Referring to FIG. 3A , the wrapper 311 may include a first adhesive part 312 .

The wrapper 311 may be made of general wrapping paper. For example, the wrapper 311 may be a porous wrapper or a non-porous wrapper. In addition, an aluminum foil may be further included on the inner surface of the wrapper 311 . The longitudinal direction of the wrapper 311 means a direction parallel to the longitudinal direction of the aerosol-forming rod, which is the direction in which the airflow passes in the aerosol-forming rod. The width of the wrapper 311 means the length of the wrapper 311 in a direction perpendicular to the length direction of the wrapper 311 .

The first adhesive part 312 may be formed from one end of the wrapper 311 in the longitudinal direction of the wrapper 311 . Also, the first adhesive part 312 may have a first width in a direction perpendicular to the length direction of the wrapper 311 . In an embodiment, the first width of the first adhesive part 312 may be less than or equal to 20% of the width of the wrapper 311 . For example, the first width of the first adhesive part 312 may be about 1 mm to 4 mm, but the first width is not limited thereto.

An adhesive material may be applied to the first adhesive part 312 . That is, the adhesive material may be applied along the longitudinal direction of the wrapper 311 from one end of the wrapper 311 , and may be applied by a first width in a direction perpendicular to the longitudinal direction of the wrapper 311 .

In an embodiment, the adhesive material may be composed of at least one of ethylene-vinyl acetate (EVAc), hot melt, and polyvinly alcohol (PVAc), but the adhesive material is not limited thereto.

Referring to FIG. 3B , an aerosol-forming rod 320 comprising a wrapper 321 and an aerosol generating material 322 is shown. One end and the other end of the wrapper 321 may be in contact with the aerosol generating material 322 to be surrounded by the wrapper 321 .

The aerosol-forming rod 320 of FIG. 3B may correspond to the tobacco rod 220 of FIG. 2 .

As described above in FIG. 3A , an adhesive material may be applied to the first adhesive part 323 formed on one end of the wrapper 321 . When one end and the other end of the wrapper 321 come into contact, one end and the other end of the wrapper 321 may be fixed by the adhesive material applied to the first adhesive part 323 of one end of the wrapper 321 .

When the adhesive material is applied only to the first adhesive part 323 located at one end of the wrapper 321, one end and the other end of the wrapper 321 can be fixed, but the wrapper 321 and the aerosol generating material 322 are fixed cannot perform the function.

Meanwhile, a filter unit may be located downstream of the aerosol-forming rod 320 , and the filter unit may include at least one filter segment. “Downstream” refers to the direction from the mouth of the user smoking the aerosol-forming rod 320 proximate. Each filter segment may be formed by a sheet of cellulose acetate or crimped polymer.

A heater may be inserted into the aerosol-forming rod 320 to heat the aerosol-forming rod 320 . In the aerosol-forming rod 320, the aerosol-generating material 322 that is not fixed to the wrapper 321 in the process of inserting the heater into the aerosol-forming rod 320 may be pushed in the direction in which the heater is inserted, thereby causing the aerosol-forming rod 320 Clogging of the filter segment in contact with the downstream end of the

In addition, when the aerosol-generating material 322 is not fixed to the wrapper 321 , after smoking is finished, in the process of removing the aerosol-forming rod 320 from the aerosol-generating device, the aerosol-generating material 322 is transferred to the wrapper 321 . ) may cause a problem of being separated from and remaining inside the aerosol generating device.

On the other hand, the aerosol generating material 322 may further include an aerosol former such as glycerin, propylene glycol, ethylene glycol, flavoring agent and wetting agent in addition to tobacco raw materials.

4A is a view showing an example of a wrapper having one end and an adhesive material applied between one end and the other end, and FIG. 4B is a view showing an example in which the wrapper of FIG. 4A surrounds an aerosol generating material.

Referring to FIG. 4A , the wrapper 411 may include a first adhesive part 412 and a second adhesive part 413 . The wrapper 411 and the first adhesive part 412 of FIG. 4A correspond to the wrapper 311 and the first adhesive part 312 of FIG. 3A , respectively.

The second adhesive portion 413 may be formed between one end and the other end of the wrapper 411 in the longitudinal direction of the wrapper 411 . Also, the second adhesive part 413 may have a second width in a direction perpendicular to the length direction of the wrapper 411 . In an embodiment, the second width of the second adhesive part 413 may be less than or equal to 20% of the width of the wrapper 411 . For example, the first width of the second adhesive part 4 may be about 1 mm to 4 mm, but the second width is not limited thereto.

Although it is illustrated in FIG. 4A that there is one second adhesive part 413 , the present invention is not limited thereto and the number of the second adhesive part 413 may be one or more. Preferably, the number of the second adhesive portions 413 may be one to three.

When there are a plurality of second adhesive parts 413 , the second adhesive parts 413 may be positioned to be spaced apart from each other at intervals of 5 mm to 15 mm.

An adhesive material may be applied to the second adhesive part 413 . Specifically, the adhesive material may be applied along the longitudinal direction of the wrapper 411 between one end and the other end of the wrapper 411, and may be applied by a second width in a direction perpendicular to the longitudinal direction of the wrapper 411. .

As in FIG. 3A , the adhesive material may be composed of at least one of ethylene-vinyl acetate (EVAc), hot melt, and polyvinly alcohol (PVAc), but the adhesive material is not limited thereto.

Referring to FIG. 4B , an aerosol-forming rod 420 comprising a wrapper 421 and an aerosol generating material 422 is shown. The wrapper 421, the aerosol-generating material 422, and the first adhesive part 423 of FIG. 4B may correspond to the wrapper 321, the aerosol-generating material 322, and the first adhesive part 323 of FIG. 3B, respectively. The aerosol-forming rod 420 of FIG. 4B may correspond to the tobacco rod 220 of FIG. 2 .

Referring to FIG. 4B , the adhesive material may be applied not only to the first adhesive part 423 formed at one end of the wrapper 421 , but also to the second adhesive part 424 formed between one end and the other end of the wrapper. Accordingly, in the process in which the aerosol-generating material 422 is surrounded by the wrapper 421 , the aerosol-generating material 502 supplied over the wrapper 421 is adhered to the second adhesive part 424 to be fixed to the wrapper 421 . can

Accordingly, the aerosol-generating material 422 is not pushed in the direction in which the heater is inserted in the process in which the heater is inserted into the aerosol-forming rod 420 , thereby minimizing the deviation of the physical properties of the aerosol-forming rod 420 . In addition, since the clogging of the filter segment in contact with the downstream end of the aerosol-forming rod 420 does not occur, it is possible to provide a uniform atomization amount.

Meanwhile, the aerosol generating material 422 may be filled with a plurality of tobacco strands from which the leaflet sheet is cut. In an embodiment, the plurality of tobacco strands may form a straight array in a direction parallel to the longitudinal direction of the aerosol-forming rod 420 . In this case, even if the heater is inserted into the aerosol-generating material 422 through the fixing of the aerosol-generating material 422 to the wrapper 421, the tobacco strands of the aerosol-generating material 422 may maintain a straight arrangement. Accordingly, an airflow path is secured in the longitudinal direction of the aerosol-forming rod 420 to increase the amount of atomization during smoking.

In addition, after smoking is finished, the ratio of the aerosol-generating material 422 remaining inside the aerosol-generating device in the process of removing the aerosol-forming rod 420 from the aerosol-generating device may be significantly reduced. This is because, since the aerosol-generating material 422 is fixed to the wrapper 421 by the adhesive material, the aerosol-generating material 422 is not separated from the wrapper 421 during the removal of the aerosol-forming rod 420 .

division When the adhesive material is applied only to one end of the wrapper One end of the rapper and
When an adhesive material is applied between one end and the other end Number of aerosol-forming rods 140 pieces 140 pieces Residual aerosol-generating substances Count 16 pieces 2 ratio 8.8% 1.4%

Table 1 shows that when 140 aerosol-forming rods 420 are respectively heated by the aerosol-generating device and the aerosol-forming rod 420 is removed at the time when smoking is finished, the aerosol-generating material 422 remains in the aerosol-generating device. It is the result of testing whether or not

In the case of an aerosol-forming rod 420 in which an adhesive material is applied only to one end of the wrapper 421 , that is, the first adhesive portion 423 , 16 aerosol-forming rods 420 out of 140 aerosol-forming rods 420 are removed during the removal process. The aerosol-generating material 422 remains in the aerosol-generating device.

However, in the case of the aerosol-forming rod 420 in which an adhesive material is applied to one end and between one end and the other end of the wrapper 421 , that is, both the first and second adhesive portions 423 and 424, 140 aerosol-forming rods are removed during the removal process. Only two aerosol-forming rods 420 of 420 have an aerosol-generating material 422 remaining in the aerosol-generating device. Therefore, it can be seen that by applying the adhesive material between one end and the other end of the wrapper 421, the residual rate of the aerosol generating material 422 in the aerosol generating device is significantly reduced from 8.8% to 1.4%.

A person of ordinary skill in the art related to this embodiment will understand that it can be implemented in a modified form without departing from the essential characteristics of the above description. Therefore, the disclosed methods are to be considered in an illustrative rather than a restrictive sense. The scope of the present invention is indicated in the claims rather than the foregoing description, and all differences within the scope equivalent thereto should be construed as being included in the present invention.

Claims (6)

A method of making an aerosol-forming rod comprising an aerosol-generating material and a wrapper, the method comprising:
applying an adhesive material to a first adhesive portion formed along the length direction of the wrapper from one end of the wrapper and having a first width in a direction perpendicular to the length direction of the wrapper;
applying the adhesive material to at least one second adhesive portion formed between one end and the other end of the wrapper in the longitudinal direction of the wrapper and having a second width in a direction perpendicular to the longitudinal direction of the wrapper;
supplying an aerosol-generating material in which a plurality of tobacco strands form a straight array in a direction parallel to the longitudinal direction; and
Fixing to the wrapper by placing at least a portion of the supplied aerosol-generating material on the second adhesive part, and fixing one end and the other end of the wrapper by an adhesive material applied to the first adhesive part, thereby forming the aerosol-generating material enclosing with the wrapper;
A method of manufacturing an aerosol-forming rod comprising a. delete The method of claim 1,
The second adhesive portion is 1 to 3,
When there are a plurality of the second adhesive parts, the second adhesive parts are positioned to be spaced apart from each other at intervals of 5 mm to 15 mm, the method of manufacturing an aerosol-forming rod. The method of claim 1,
The first width and the second width is 1mm to 4mm, the method of manufacturing an aerosol-forming rod. The method of claim 1,
The adhesive material is EVAc (Ethylene-vinyl acetate), hot melt (Hot melt), and PVAc (Polyvinly alcohol) consisting of at least one of, a method of manufacturing an aerosol-forming rod. An aerosol-forming rod produced by the method according to claim 1 .

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