KR102725605B1 - Reconsituted tabacco improved swellability and manufacturing method thereof - Google Patents

Abstract

The present invention can improve the fluffiness of tobacco filler by controlling the particle size of tobacco raw materials, and can also improve the manufacturing quality by reducing the tip falling off by using tobacco raw materials with high fluffiness. Furthermore, the smoking article manufactured by the method of the present invention has no significant difference in sensory properties from smoking articles manufactured by conventional methods, and rather, when using tobacco raw materials with high fluffiness, there is an effect of increasing the amount of vapor and the harmony.

Description

{Reconsituted tabacco improved swellability and manufacturing method thereof}

The present invention relates to a method for manufacturing reconstituted tobacco having improved fluffability by controlling the particle size of each cigarette.

Smoke or aerosol generated from smoking articles is manufactured to be delivered to smokers by moving from upstream to downstream, so that they can experience the satisfaction of smoking. In the field of smoking article development, an aerosol-generating article is known that heats rather than combusts an aerosol-forming material such as a tobacco-containing medium. An aerosol is generated from the material by heat transfer from a heat source to a physically separate aerosol-generating material located in contact with, inside, around, or downstream of a heat source, and is entrained in the air drawn through the smoking article and consumed by the smoker.

Smoking articles used in heated aerosol-generating articles include reconstituted tobacco, so-called sheet tobacco, manufactured by rolling a sheet manufactured by spreading and drying a slurry mixed with tobacco powder, a binder, pulp, and additives, as an aerosol-generating material in the tobacco rod. In the manufacture of reconstituted tobacco, a binder is used to uniformly mix tobacco powder with other additives into the pulp, and the sheet manufactured by the slurry method is manufactured into a sheet to facilitate heat transfer and increase the amount of aerosol generated. Accordingly, leakage of tobacco sheet from the tobacco rod of the manufactured smoking article remains an issue to be resolved in the relevant field.

KR 10-2017-0023808

The technical problem to be achieved by the present invention is to provide a method for improving the fluffability by controlling the particle size of a tobacco raw material in the manufacture of an aerosol-generating material of a smoking article, that is, a reconstituted cigarette, in order to reduce tip-off (falling off of the starter) for improving the manufacturing quality of a smoking article, and to provide a reconstituted cigarette manufactured by the method and a smoking article including the same.

However, the technical problems to be achieved by the present invention are not limited to the problems mentioned above, and other problems not mentioned will be clearly understood by those skilled in the art from the description below.

The present invention can improve the fluffiness of tobacco filler by controlling the particle size of tobacco raw materials, and can also improve the manufacturing quality by reducing the tip falling off by using tobacco raw materials with high fluffiness. Furthermore, the smoking article manufactured by the method of the present invention has no significant difference in sensory properties from smoking articles manufactured by conventional methods, and rather, when using tobacco raw materials with high fluffiness, there is an effect of increasing the amount of vapor and the harmony.

Figure 1 illustrates an example of a cigarette including a filter segment.
Figure 2 is a schematic diagram illustrating an example process for manufacturing a recombinant tobacco of the present invention.

Hereinafter, embodiments will be described in detail with reference to the attached drawings. However, since various modifications may be made to the embodiments, the scope of the patent application rights is not limited or restricted by these embodiments. It should be understood that all modifications, equivalents, or substitutes to the embodiments are included in the scope of the rights.

The terms used in the examples are for the purpose of description only and should not be construed as limiting. The singular expression includes the plural expression unless the context clearly indicates otherwise. In this specification, the terms "comprises" or "has" and the like are intended to specify the presence of a feature, number, step, operation, component, part or combination thereof described in the specification, but should be understood to not exclude in advance the possibility of the presence or addition of one or more other features, numbers, steps, operations, components, parts or combinations thereof.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art to which the embodiments belong. Terms defined in commonly used dictionaries, such as those defined in common dictionaries, should be interpreted as having a meaning consistent with the meaning they have in the context of the relevant art, and shall not be interpreted in an idealized or overly formal sense, unless expressly defined in this application.

In addition, when describing with reference to the attached drawings, the same components will be given the same reference numerals regardless of the drawing numbers, and redundant descriptions thereof will be omitted. When describing an embodiment, if it is determined that a detailed description of a related known technology may unnecessarily obscure the gist of the embodiment, the detailed description thereof will be omitted.

In the present invention, the cigarette is an article that generates an aerosol and includes an aerosol-generating substrate.

Figure 1 is a configuration diagram showing an example of a cigarette (100).

Referring to FIG. 1, the cigarette (100) includes a tobacco rod (110), a first filter segment (120), a second filter segment (130), a third filter segment (140), and a wrapper (150), and may have a diameter of 4 to 9 mm and a length of 45 to 50 mm, but is not limited thereto.

The structure of the cigarette (100) illustrated in FIG. 1 is only an example, and some components may be omitted. For example, the cigarette (100) may not include one or more of the first filter segment (120), the second filter segment (130), and the third filter segment (140). The tobacco rod (110) is filled with reconstituted tobacco, and the reconstituted tobacco 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. The length of the tobacco rod (110) may be about 10 to 14 mm, preferably 12 mm, but is not limited thereto.

Additionally, the tobacco rod (110) may contain other additives such as flavorings, humectants, and/or cellulose acetate compounds. For example, flavorings may include licorice, sucrose, fructose syrup, isosweeteners, 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. Additionally, humectants may include glycerin or propylene glycol, and the like.

In the present invention, the reconstituted tobacco filled in the tobacco rod (110) can be filled with tobacco sheets. Here, the tobacco sheets can be produced by finely crushing tobacco sheets.

As another example, the tobacco rod (110) may be filled with a plurality of tobacco strands that are cut from a reconstituted tobacco sheet. For example, the tobacco rod (110) may be formed by combining a plurality of tobacco strands in the same direction (parallel) or randomly. One tobacco strand may be manufactured in a rectangular shape with a horizontal length of 0.9 mm, a vertical length of 12 mm, and a thickness (height) of 0.2 mm, but is not limited thereto.

Compared to the tobacco rod (110) filled with the reconstituted tobacco sheet, the tobacco rod (110) filled with the above-described tobacco strands can generate a larger amount of aerosol. Assuming that they are filled in the same space, the tobacco strands ensure a larger surface area compared to the tobacco sheet. The larger surface area means that the aerosol generating material has more opportunities to come into contact with the outside air. Therefore, when the tobacco rod (110) is filled with the tobacco strands, a larger amount of aerosol can be generated compared to when it is filled with the tobacco sheet.

In addition, when separating the cigarette (100) from the holder (not shown), the tobacco rod (110) filled with tobacco strands can be separated more easily than the one filled with tobacco sheets. Compared to the tobacco sheet, the frictional force generated when the tobacco strands come into contact with the heater (200) is smaller. Therefore, when the tobacco rod (110) is filled with tobacco strands, it can be separated more easily from the holder than when it is filled with tobacco sheets.

As another example, the tobacco rod (110) may contain other additives such as flavorings (i.e., flavoring agents) and/or organic acids. For example, flavorings may include licorice, sucrose, fructose syrup, isosweeteners, 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.

The first filter segment (120) is positioned downstream of the tobacco rod (110), and its upstream side may be in contact with the downstream side of the tobacco rod (110). The first filter segment (120) may function as a support member for the tobacco rod (110). For example, when a cigarette (100) is inserted into the heater (200), the first filter segment (120) may perform a function of preventing the tobacco rod (110) from moving downstream.

In addition, the first filter segment (120) can serve as a passage for the aerosol formed in the tobacco rod (110). The first filter segment (120) can be in the form of a tube including a hollow space (120H) therein. The hollow space (120H) can function as a channel for the aerosol. In addition, the upstream end of the tubular structure included in the first filter segment (120) can be in contact with the downstream end of the tubular structure included in the second filter segment (130). Therefore, the aerosol formed in the tobacco rod (110) can be moved toward the third filter segment (140) (i.e., in the downstream direction) through the hollow space (120H, 130H).

The first filter segment (120) may be a cellulose acetate filter. In addition, the first filter segment (120) may be a flavored filter to which a flavoring agent such as menthol is added. For example, a flavoring solution consisting of about 60 to 80 wt% of menthol and about 20 to 40 wt% of propylene glycol may be added to the flavored filter. At this time, the amount of the flavoring solution added may be about 1 to 10 mg, preferably 1 to 7 mg, but is not limited thereto. In addition, the first filter segment (120) may be a filter to which a moisturizing agent such as glycerin and/or propylene glycol is added (i.e., moisturized).

The outer diameter of the first filter segment (120) may be about 3 to 10 mm, preferably 7 mm, and its length may be about 8 to 12 mm, preferably 10 mm, but is not limited thereto. In addition, when a hollow (120H) is formed inside the first filter segment, the diameter of the hollow (120H) may be appropriately adopted in the range of 2 to 4.5 mm, but is preferably 2.5 to 3.4 mm, and more preferably 4.2 mm.

It may be desirable for the first filter segment (120) to be manufactured to have appropriate hardness (or durability) for the supporting role. In some embodiments, the hardness of the first filter segment (120) may be adjusted by controlling the amount of plasticizer added during the manufacturing of the first filter segment (120). In addition, as the inner diameter of the first filter segment (120) increases (i.e., as the thickness of the first filter segment (120) decreases), the content of the plasticizer added may increase. In some other embodiments, the first filter segment (120) may be manufactured by inserting a structure such as a film or tube of the same or different material into the interior (i.e., the hollow 120H).

The second filter segment (130) cools the aerosol generated by the heater (200) heating the tobacco rod (110). The second filter segment (130) may include a tubular structure having a hollow space (130H) formed therein, and the high-temperature aerosol may be cooled while passing through the hollow space (130H). Accordingly, the user may inhale the aerosol cooled to an appropriate temperature.

The length of the second filter segment (130) may be about 12 to 16 mm, 14 mm, but is not limited thereto.

The second filter segment (130) can be made of polylactic acid or a paper tube. The second filter segment (130) can be made of various shapes to increase the surface area per unit area (i.e., the surface area in contact with the aerosol). In addition, the paper material can be a low porosity or non-porous material. For example, the bulk of the paper material may be about 1.5 cm ³ /g or 1.0 cm ³ /g or less, preferably 0.8 cm ³ /g or less, but is not limited thereto. Here, the bulk means a value obtained by dividing the thickness by the basis weight, and a low-bulk paper material generally has a low porosity because the pore structure is not developed. In addition, since the paper material hardly absorbs a flavoring substance, the transfer of the flavoring substance of the third filter segment (140) to the second filter segment (130) during the storage period can be minimized. In addition, since the tube-shaped structure made of paper material has a relatively large inner diameter (D2), the difference in the inner diameter (or hollow cross-sectional area) between the second filter segment (130) and the first filter segment (120) can be easily maximized, thereby increasing the airflow diffusion effect inside the cigarette (100). The increase in the airflow diffusion effect can enhance the cooling effect of the second filter segment (130) and the flavor expression and vaporization amount of the cigarette (100).

Meanwhile, the inner diameter (D2) (or the average cross-sectional area of the hollow (130H)) of the second filter segment (130) may be larger than the inner diameter (D1) (or the average cross-sectional area of the hollow (120H)) of the first filter segment (120). In this case, the mainstream smoke (air current) moving from the hollow (120H) of the first filter segment (120) to the hollow (130H) of the second filter segment (130) is rapidly diffused, and the diffused mainstream smoke can increase the contact area and time with the external air flowing in through the perforations (160) as the bias in the downstream direction is reduced. As a result, the cooling effect on the mainstream smoke can be improved, and the atomization amount can also be increased by smoothly forming an aerosol. Furthermore, the flavoring substance contained in the tobacco rod (110) and the first filter segment (120) is transferred as is through the second filter segment (130), and the contact area between the mainstream smoke and the third filter segment (140) also increases, so that the amount of flavoring substance transferred can be increased. In addition, the uniformity of the amount of vaporization can also be secured because the airflow movement becomes smooth.

Here, when a pipe having an inner diameter (D2) of about 90% to 95% of the outer diameter is applied as the second filter segment (130), the difference between the inner diameter (D1) of the first filter segment (120) and the inner diameter (D2) of the second filter segment (130) can be maximized, and accordingly, the mainstream smoke diffusion effect and the mainstream smoke cooling effect can also be further maximized. As an example, when considering the overall maximization of the cooling effect, the increase in the amount of vaporization and the amount of nicotine transferred, etc., the inner diameter ratio of the first filter segment (120) and the second filter segment (130) can be about 1:1 to 1:3.5. Preferably, the inner diameter ratio can be about 1:1.5 to 1:3.5 or 1:1.5 to 1:3. As a specific example, when the inner diameter of the first filter segment (120) is 2.5 mm, the inner diameter of the second filter segment (130) may be 3.75 mm to 7.5 mm, preferably 5 mm to 7.5 mm, and more preferably 6 mm to 7 mm.

The basis weight of the paper material constituting the second filter segment (130) may be 150 gsm to 190 gsm. Within this basis weight range, the rigidity and durability of the second filter segment (130) can be secured, and workability during manufacturing can also be improved. Specifically, when the basis weight is 150 gsm or less, it is difficult to secure appropriate rigidity for the second filter segment (130), and when the basis weight is 190 gsm or more, the knife for cutting the tubular structure may be damaged or the cutting may not be performed quickly, thereby reducing workability.

The hollow tube structure (or the second filter segment 130) made of paper material can be manufactured in a form of laminating a plurality of spiral sheets. Through this manufacturing method, the rigidity and durability of the structure can be improved, and the airtightness can be improved. In addition, as the airtightness is improved, the transfer of the flavoring material to the second filter segment (130) can be further minimized.

As an example, the second filter segment (130) may be formed with a plurality of perforations (160) as mentioned above in an online perforation manner. That is, the inside and the outside of the second filter segment (130) or the tubular structure may be fluidly connected through the perforations (160). Here, the online perforation manner may mean a manner in which the wrapper (150) and the second filter segment (130) are penetrated together to form the perforations (160). When smoking, outside air may flow into the hollow space (130H) of the second filter segment (130) through the plurality of perforations (160) and then be diluted with the mainstream smoke and may move to the third filter segment (140). The plurality of perforations (160) may play a role in lowering the surface temperature of the third filter segment (140) and the temperature of the mainstream smoke delivered to the smoker when smoking.

The air dilution rate of the second filter segment (130) varies depending on the formation conditions of the plurality of perforations (160) (e.g., perforation method, number, size, etc.). In addition, as the air dilution rate increases (e.g., as the number of perforations increases), the surface temperature of the cigarette (100) and the temperature of the mainstream smoke may decrease further. However, if the air dilution rate exceeds an appropriate value, a futile inhalation phenomenon may occur or the amount of vaporization may decrease during smoking. Therefore, the air dilution rate needs to be appropriately adjusted according to the structure and unique characteristics of the cigarette (100). Here, the air dilution rate may mean the ratio of the total volume of the final mainstream smoke and the volume of external air introduced into the final mainstream smoke through the second filter segment (130).

Meanwhile, in order to increase the amount of vaporization while maintaining the surface temperature and mainstream smoke temperature at appropriate levels, a plurality of perforations (160) may be formed so that the air dilution rate of the second filter segment (130) is about 5% to 40%, preferably 10% to 30%, and more preferably 15% to 25%. For reference, the non-perforated second filter segment (130) manufactured with a structure in which a plurality of paper layers are spirally laminated may have an air dilution rate of substantially 0%.

The plurality of perforations (160) may be composed of 10 holes per row, but is not limited thereto.

The third filter segment (140) is a mouthpiece that comes into contact with the user's mouth and serves as a filter that ultimately delivers the aerosol delivered from upstream to the user. The third filter segment (140) is located downstream of the second filter segment (130), and its upstream side can be in contact with the downstream side of the second filter segment (130), forming the downstream end of the cigarette (100).

The third filter segment (140) may be a cellulose acetate filter. For example, the third filter segment (140) may be manufactured as a recessed filter including a hollow portion, but is not limited thereto. The length of the third filter segment (140) may be about 10 to 14 mm, preferably 12 mm, but is not limited thereto.

In addition, the third filter segment (140) can be manufactured using a cellulose material having a bulk greater than a standard value as a filter material. The cellulose material can be, for example, paper, but the scope of the present disclosure is not limited thereto. As mentioned above, the bulk means a value obtained by dividing the thickness by the basis weight, and a cellulose material having a high bulk can accommodate a large amount of flavoring liquid because it contains many pores inside. In addition, a cellulose material having a high bulk can suppress rapid volatilization of a volatile flavoring liquid (or flavoring material) through a complex pore structure, thereby preventing the transfer of the flavoring material and also improving the flavor persistence of the cigarette (100) when smoking. The bulk value of the cellulose material can be changed based on the target porosity (or target flavoring liquid capacity) of the cellulose material, but it can be preferably about 1 cm ³ /g or more. More preferably, the bulk of the cellulosic material can be greater than or equal to about 1.5 cm ³ /g, 2 cm ³ /g, or 2.5 cm ³ /g. In this numerical range, the pore structure of the cellulosic material can be developed and accordingly, the fragrance holding capacity can be greatly increased.

In addition, the third filter segment (140) may additionally include a flavoring agent. The method of adding the flavoring agent may vary. For example, the method may include a method of directly spraying a flavoring liquid containing a flavoring agent onto the filter (e.g., a TJNS filter), a method of putting the flavoring agent into a capsule and injecting it, a method of inserting a separate fiber coated with the flavoring agent into the inside of the third filter segment (140), etc., but is not limited thereto. The flavoring agent to be added may be a substance (e.g., L-menthol) that exists as a crystalline solid at room temperature (e.g., 20 ±5). In this case, the content ratio between the solvent and the flavoring agent may be important, because when the content of the solvent is low, the flavoring agent may precipitate in a solid phase within the cellulose material, which may rapidly increase the suction resistance and hardness of the third filter segment (140). The preferable content of the flavoring agent may be approximately 60 wt% or less. More preferably, the content may be approximately 50 wt% or 40 wt% or less. Within this numerical range, the change in the physical properties of the third filter segment may be minimized.

When the above-described flavoring agent is added in the form of a flavoring liquid, the solvent may include propylene glycol or medium chain fatty acid triglyceride (hereinafter abbreviated as "MCTG"). However, the scope of the present disclosure is not limited to these examples. Since propylene glycol is a polar (or hydrophilic) solvent, it may be effective when the flavoring agent is polar (or hydrophilic), and since MCTG is a nonpolar (or hydrophobic) solvent, it may be effective when the flavoring agent is nonpolar (or hydrophobic). This is because nonpolar MCTG can dissolve nonpolar flavoring agents well and can also suppress volatilization of volatile flavoring agents well. For example, when the flavoring agent is menthol, MCTG may be effective as a solvent. In this case, MCTG can suppress volatilization of menthol, thereby preventing a rapid decrease in the intensity of expression of menthol flavor during smoking. That is, the problem of menthol flavor being overexpressed in the early stages of smoking and not being expressed well after the middle of smoking can be alleviated.

In addition, the amount of the flavoring agent added may vary depending on the content (or area) of the cellulose material in the third filter segment (140), but may be preferably about 1.0 mg/mm to 9.0 mg/mm. More preferably, the amount of the flavoring agent added may be about 2.0 mg/mm to 7.0 mg/mm, 3.0 mg/mm to 7.0 mg/mm, 3.0 mg/mm to 6.0 mg/mm, or 2.0 mg/mm to 6.0 mg/mm. Within these numerical ranges, the flavor expression is increased, the problem of the wrapper becoming wet is minimized, and the problem of smokers feeling rejection due to the expression of an excessively strong flavor during smoking can be prevented.

The tobacco rod (110) and the first filter segment (120) may be wrapped by a wrapper (150). For example, the wrapper (150) may be made of a paper-like packaging material having oil resistance. The thickness of the wrapper (150) may be about 40 um to 80 um and the porosity may be about 5 CU to 50 CU, but is not limited thereto.

Although not shown, at least one of the tobacco rod (110), the first filter segment (120), the second filter segment (130), and the third filter segment (140) may be each wrapped in a separate wrapper before being wrapped by the wrapper (150). For example, the tobacco rod (110) may be wrapped by a tobacco rod wrapper (not shown), and the first filter segment (120), the second filter segment (130), and the third filter segment (140) may each be wrapped by a first filter wrapper (not shown), a second filter wrapper (not shown), and a third filter wrapper (not shown), respectively. However, the manner in which the cigarette (100) and its components are wrapped may vary.

The above wrappers may have different properties depending on the area they wrap. For example, the thickness of the tobacco rod wrapper wrapping the tobacco rod (110) may be about 61 um and the porosity may be about 15 CU, and the thickness of the first filter wrapper wrapping the first filter segment (120) may be about 63 um and the porosity may be about 15 CU, but is not limited thereto. In addition, the inner surface of the tobacco rod wrapper and/or the first filter wrapper may further include aluminum foil. In addition, the second filter wrapper wrapping the second filter segment (130) and the third filter wrapper wrapping the third filter segment (140) may be manufactured from hard paper. For example, the thickness of the second filter wrapper may be about 158 um and the porosity may be about 33 CU, and the thickness of the third filter wrapper may be about 155 um and the porosity may be about 46 CU, but is not limited thereto.

The wrapper (150) can be produced by applying (or coating) a predetermined material to one or both surfaces of a paper packaging material. Here, an example of the predetermined material may be silicone, but is not limited thereto. Silicone has properties such as heat resistance that is less affected by temperature, oxidation resistance that does not oxidize, resistance to various chemicals, water repellency, or electrical insulation. However, even if it is not silicone, any material having the above-described properties can be applied (or coated) to the wrapper (150) without limitation.

The reconstituted tobacco sheet of the present invention can be formed by grinding tobacco raw materials into fine particles, mixing binder, pulp, and additives, and preparing a slurry, and then spreading the slurry into a plate shape and drying it. For example, the slurry may contain 5 to 80% of tobacco raw materials, i.e., cut paper. The tobacco raw materials may be tobacco leaf pieces, tobacco stems, or major side strips of tobacco leaves.

In the production of the reconstituted tobacco sheet of the present invention, the pulverization of the tobacco raw material may be performed so that the particle size of the raw material becomes 26 to 100 ㎛, preferably 30 to 50 ㎛, and more preferably 30 to 40 ㎛, and further, in the particle size distribution of the particulate tobacco raw material particles, the proportion of particles having a particle size of 80 ㎛ or less may be 70 to 99%, preferably 80 to 99%, and more preferably 90 to 99%.

In the present invention, the particle size refers to the volume moment mean, which is the size of fine particles that occupy most of the volume of tobacco raw materials.

In addition, the present invention comprises a method for producing a highly fluffy recombinant tobacco, comprising mixing particulate tobacco raw materials within the particle size and distribution ranges, binders, pulp, additives, water, etc. to form a slurry plate-shaped leaf, and the ratio of thickness (㎛)/basis weight (g/m ² ) of the plate-shaped leaf may be 1.05 to 2.50.

In the manufacture of the reconstituted tobacco sheet of the present invention, the tobacco raw material may be a raw material with high fluffiness, for example, a raw material of cigar leaf or Burley species, and the content of the tobacco raw material with high fluffiness may vary depending on the characteristics of the raw material, but may be included in an amount of 5 to 80 wt%, preferably 30 to 80 wt%, and more preferably 30 to 50 wt% based on the dry weight of the total tobacco raw material.

The present invention can increase the fluffiness and reduce the basis weight under the same thickness of a slurry sheet by controlling the type and mixing ratio of tobacco raw materials and the particle size of particulate tobacco raw materials in the production of a highly fluffy recombinant tobacco, and further, can reduce the total weight of a tobacco rod when producing a tobacco rod by controlling the ratio of the thickness/based weight of the slurry sheet, and can also reduce the tip breakage of the reconstituted tobacco.

Specifically, the inventors of the present invention manufactured tobacco rods by varying the particle size and type of raw tobacco material, and confirmed their weight and degree of tip breakage.

More specifically, in order to confirm the change in the weight of the tobacco rod and the swelling property according to the particle size, Comparative Example 1 was produced by adjusting the size of the charcoal filler by the method applied to commercially available tobacco, and making the ratio of the slurry plate leaf thickness/basis weight 1.14 to produce a tobacco rod. Example 1 was produced by using the same tobacco raw material as that of Comparative Example 1, but only changing the particle size to produce a tobacco rod.

In addition, in order to confirm the change in swelling property and tobacco rod weight according to the type of tobacco raw material, a tobacco rod of Example 2 was produced in the same manner as Example 1 using a tobacco raw material containing 40% cigar leaves.

Meanwhile, in order to confirm the change in the weight and tip of the tobacco rod according to the ratio of the slurry plate thickness/basis weight, the ratio of the slurry plate thickness/basis weight and the tobacco rod weight were

The tobacco rod of Example 2 was produced in the same manner as Comparative Example 2, except for other differences.

In each experiment, the swelling property according to the size of the particulate tobacco raw material was measured, and the weight and tip breakage of the manufactured tobacco rod were measured, and the results are as shown in Table 1 below.

division Each second Tobacco road Stick (smoking article) Slurry plate thickness/weight ratio particle size
(um) Swelling
(cc/g) weight
(mg) End
(mg/ ^cm2 ) Medium weight
(mg) nicotine
(mg/stick) glycerin
(mg/stick) common Comparative Example 1 24.6 2.28 1,560 2.95 260 0.78 4.51 1.14 Example 1 33.8 2.58 1,500
_(△4%) 2.59 250 0.77 4.26 1.20 market price Comparative Example 2 25.2 2.40 1,560 0.76 260 0.52 4.25 1.23 Example 2 34.3 2.68 1,380
_(△13%) 2.16 230 0.52 4.52 1.27

Meanwhile, a sensory evaluation was conducted to confirm whether the smoking article, in which the total weight of the tobacco rod was reduced by applying the tobacco filler (Example) with increased filler swelling by controlling the particle size of the tobacco raw material compared to the comparative example, affects the taste delivered to the consumer. A blind test was conducted on the manufactured smoking article with 100 sensory evaluation panelists, and the scores were given according to the 7-point scale, and the average values are shown in Table 2 below.

The evaluation method generally evaluated the main taste attributes such as the amount of flavor and taste intensity, as well as the stimulation and harmony.

division No amount of water The intensity of smoking pepper This hobby Harmony common Comparative Example: Example 3.8 : 3.7 3.4 : 3.4 3.3 : 3.3 2.4 : 2.6 3.6 : 3.8 market price 4.5 : 4.8 ^* 3.5 : 3.4 3.9 : 3.3 ^* 3.8 : 3.4 4.5 : 5.0 ^*

From the results in Table 2 above, Example 1 showed sensory properties that were not significantly different from Comparative Example 1 in terms of vapor volume, smoking intensity, irritation, off-flavor, and harmony, despite containing less aerosol-generating substances used in manufacturing smoking articles due to improved fluffiness caused by controlling the particle size of the tobacco raw material. Furthermore, Example 2 was evaluated more positively than Comparative Example 2 in terms of vapor volume, irritation, and harmony.

Although the embodiments have been described with limited drawings as described above, those skilled in the art can apply various technical modifications and variations based on the above. For example, even if the described techniques are performed in a different order than the described method, and/or the components of the described system, structure, device, circuit, etc. are combined or combined in a different form than the described method, or are replaced or substituted by other components or equivalents, appropriate results can be achieved.

Therefore, other implementations, other embodiments, and equivalents to the claims are also included in the scope of the claims described below.

Cigarette (100)
Tobacco Road (110)
First filter segment (120)
Second filter segment (130)
3rd filter segment (140)
Rapper (150)

Claims (10)

As a composition for manufacturing a reconstituted cigarette,
The above composition comprises a granular tobacco raw material,
The above granular tobacco raw material contains 30 to 50 wt% of leaves and/or stems derived from cigar leaves and/or burley species based on the dry weight of the total granular tobacco raw material.
The particle size of the above-mentioned granular tobacco raw material is 26 to 100 ㎛,
A composition characterized in that the proportion of particles having a particle size of 80㎛ or less in the above-mentioned granular tobacco raw material is 70 to 99%. delete In the first paragraph,
A composition, wherein the composition further comprises a binder. In the first paragraph,
The composition above is for use in manufacturing a recombinant tobacco for a heated aerosol-generating article. (1) A step of crushing tobacco raw materials into granules of 26 to 100 ㎛ in size;
(2) a step of mixing the above-mentioned granular tobacco raw material with a binder, pulp, and water to produce a slurry; and
(3) A method for manufacturing a reconstituted tobacco, comprising: a step of spreading and drying the slurry-shaped mixture so that the ratio of thickness (㎛) and basis weight (g/ ^m2 ) is 1.05 to 2.50;
The tobacco raw material of the above step (1) contains 30 to 50 wt% of leaves and/or stems derived from cigar leaves and/or burley species based on the dry weight of the total granular tobacco raw material.
A manufacturing method in which the granular tobacco raw material after step (1) has a particle size of 80㎛ or less in a ratio of 70 to 99%. delete A reconstituted tobacco comprising a composition for manufacturing a reconstituted tobacco according to claim 1. Smoking articles containing reconstituted tobacco of clause 7. In Article 8,
A smoking article, wherein the smoking article comprises reconstituted tobacco in sheet form. In Article 8,
A smoking article, wherein the smoking article comprises a plurality of tobacco strands from which the reconstituted tobacco sheet is cut.