WO2022230465A1 - 非燃焼加熱式たばこ及び電気加熱式たばこ製品 - Google Patents
非燃焼加熱式たばこ及び電気加熱式たばこ製品 Download PDFInfo
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- WO2022230465A1 WO2022230465A1 PCT/JP2022/013607 JP2022013607W WO2022230465A1 WO 2022230465 A1 WO2022230465 A1 WO 2022230465A1 JP 2022013607 W JP2022013607 W JP 2022013607W WO 2022230465 A1 WO2022230465 A1 WO 2022230465A1
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- tobacco
- filter
- less
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- combustion heating
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Classifications
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/17—Filters specially adapted for simulated smoking devices
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
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- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F40/00—Electrically operated smoking devices; Component parts thereof; Manufacture thereof; Maintenance or testing thereof; Charging means specially adapted therefor
- A24F40/40—Constructional details, e.g. connection of cartridges and battery parts
- A24F40/46—Shape or structure of electric heating means
Definitions
- the present invention relates to non-combustion heated tobacco products and electrically heated tobacco products.
- the non-combustion heated tobacco generally consists of a tobacco rod in which materials such as shredded tobacco and flavor components are wrapped in wrapping paper, a mouthpiece for sucking the components generated from the tobacco rod by heating, and Equipped with a tipping paper for wrapping.
- a heater member is caused to generate heat, thereby heating the tobacco rod starting from a point in contact with the heater member, The generated components are delivered to the user.
- Patent Document 2 by adding a volatile-containing agent contained in a polysaccharide gel to a tobacco rod, the delivery amount of the volatile flavor contained in the smoke at the time of the first puff is increased, and the volatile flavor is also volatilized during storage.
- Cigarettes are disclosed that do not exhibit volatile flavor exudation and are capable of maintaining a desired amount of volatile flavor delivery during smoking after storage.
- Patent Document 3 describes a cigarette that can reduce unfavorable components generated by combustion and deliver good flavor by adding an adsorbent or liquid absorbent to a filter arranged downstream of a tobacco rod. is disclosed.
- Patent Documents 1 and 2 disclose techniques for adjusting the amount of volatile components and achieving desired component delivery by adding specific materials to tobacco rods or filters. Compared to techniques for improving the delivery of components generated by heating from the viewpoint of such materials contained in cigarettes, there have been few studies of techniques for improving the delivery of such components from the viewpoint of the structure of the materials that make up the filter. , there is room for improvement. In addition, electrically heated tobacco products are heated at a lower temperature during use and produce less amount of ingredients than cigarettes that require combustion, so improvement in delivery of ingredients is especially desired. SUMMARY OF THE INVENTION Accordingly, it is an object of the present invention to provide a non-combustion heating tobacco product and an electrically heating tobacco product with improved delivery of components generated by heating.
- the present inventors have found that the above problems can be solved by making the fibers that make up the filter medium of the filter have a specific shape and size, and have arrived at the present invention.
- the gist of the present invention is as follows.
- a rod-shaped non-combustion heated tobacco comprising a tobacco rod portion and a mouthpiece portion, wherein the mouthpiece portion comprises a filter segment having a filter media;
- the non-combustion heating tobacco wherein the filter medium is composed of fibers having a Y-shaped circumferential cross section and a single fiber denier of 8 or more and 12 or less.
- the filter medium has a density of 0.09 g/cm 3 or more and 0.14 g/cm 3 or less.
- an electric heating device comprising a heater member, a battery unit serving as a power source for the heater member, and a control unit for controlling the heater member; An electrically heated tobacco product comprising the non-combustion heated tobacco according to any one of [1] to [6].
- FIG. 1 is a schematic diagram of a non-combustion heated cigarette according to an embodiment of the present invention
- FIG. 1 is a schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention
- FIG. 1 is a schematic diagram of an electrically heated tobacco product according to an embodiment of the present invention
- FIG. 10 is a view for explaining the mouthpiece-side end of the region where the cooling segment and the electrically heated device are in contact
- FIG. 10 is a view for explaining the mouthpiece-side end of the region where the cooling segment and the electrically heated device are in contact
- 4 is a graph showing delivery amounts of nicotine and glycerin in Examples.
- 4 is a graph showing delivery amounts of nicotine and glycerin in Examples.
- 4 is a graph showing delivery amounts of nicotine and glycerin in Examples.
- 4 is a graph showing delivery amounts of nicotine and glycerin in Examples. 4 is a graph showing delivery amounts of nicotine and glycerin in Examples. 4 is a graph showing delivery amounts
- a non-combustion heating tobacco (also simply referred to as "non-combustion heating tobacco") that is an embodiment of the present invention is a rod-shaped non-combustion heating tobacco that includes a tobacco rod portion and a mouthpiece portion, wherein the mouthpiece portion comprises a filter segment having a filter media;
- the filter medium is a non-combustion heating tobacco, comprising fibers having a Y-shaped circumferential cross section and having a single fiber denier of 8 or more and 12 or less.
- FIG. 1 shows an example of a non-combustion heated cigarette according to an embodiment. The non-combustion heating cigarette will be described below with reference to FIG.
- the mouthpiece portion 14 includes a cooling segment 12 and a filter segment 13 including a filter medium.
- the cooling segment 12 is sandwiched adjacent to the tobacco rod portion 11 and the filter segment 13, and is provided with an opening V concentrically in the circumferential direction.
- the opening V is a hole for facilitating the inflow of air from the outside due to suction by the user, and the inflow of air can lower the temperature of the components and air flowing in from the tobacco rod portion 11 .
- components generated by heating the tobacco rod portion 11 and the like pass through the mouthpiece portion and are carried into the user's mouth. Examples of components generated by heating include flavor components derived from fragrances, nicotine and tar derived from tobacco leaves, and aerosol components derived from aerosol bases.
- the aerosol substrate is a substrate for generating an aerosol.
- the non-combustion heating tobacco 10 preferably has a columnar shape that satisfies a shape with an aspect ratio of 1 or more defined below.
- Aspect ratio h/w w is the width of the bottom surface of the columnar body (in this specification, it is the width of the bottom surface on the tobacco rod side), h is the height, and it is preferable that h ⁇ w.
- the longitudinal direction is defined to be the direction indicated by h. Therefore, even if w ⁇ h, the direction indicated by h is called the long axis direction for convenience.
- the shape of the bottom surface is not limited, and may be a polygon, a polygon with rounded corners, a circle, or an ellipse.
- the length h of the non-combustion heating cigarette 10 in the long axis direction is not particularly limited, and is, for example, usually 40 mm or more, preferably 45 mm or more, and more preferably 50 mm or more. Moreover, it is usually 100 mm or less, preferably 90 mm or less, and more preferably 80 mm or less.
- the width w of the bottom surface of the columnar body of the non-combustion heating tobacco 10 is not particularly limited, and is, for example, usually 5 mm or more, preferably 5.5 mm or more.
- the length ratio of the cooling segment and the filter segment (cooling segment: filter segment) in the length of the non-combustion heating tobacco in the longitudinal direction is not particularly limited, but from the viewpoint of the amount of fragrance delivered, it is usually 0.60: 1.40-1.40: 0.60, 0.80-1.20: 0.80-1.20, 0.85-1.15: 0.85-1. 15 is preferable, 0.90 to 1.10: more preferably 0.90 to 1.10, 0.95 to 1.05: 0.95 to 1.05 is even more preferable .
- the cooling effect By setting the length ratio of the cooling segment and the filter segment within the above range, the cooling effect, the effect of suppressing the loss due to the generated vapor and aerosol adhering to the inner wall of the cooling segment, and the air volume and flavor of the filter It is possible to realize the effect of exhibiting a good flavor by balancing the adjustment functions of In particular, if the cooling segment is lengthened, particle formation of the aerosol or the like is promoted, and a good flavor can be achieved.
- the ventilation resistance in the longitudinal direction per one non-combustion heating cigarette 10 is not particularly limited, but from the viewpoint of ease of smoking, it is usually 8 mmH 2 O or more, preferably 10 mmH 2 O or more, and preferably 12 mmH 2 O or more. 2 O or more, and usually 100 mmH 2 O or less, preferably 80 mmH 2 O or less, and more preferably 60 mmH 2 O or less.
- the airflow resistance is measured according to the ISO standard method (ISO6565:2015) using, for example, a filter airflow resistance meter manufactured by Cerulean.
- the ventilation resistance is a predetermined air flow rate (17.5 cc/min. ) is the air pressure difference between the first end surface and the second end surface when the air is flowed.
- Units are generally expressed in mmH2O . It is known that the relationship between the ventilation resistance and the length of the non-combustion heating cigarette is proportional in the length range (5 mm to 200 mm in length) that is normally practiced, and if the length is doubled, it is non-linear. The ventilation resistance of combustion-heated cigarettes is doubled.
- the mouthpiece portion 14 is provided with a filter segment 13 having a filter medium, and the filter medium has a Y-shaped circumferential cross section and is composed of fibers having a single fiber denier of 8 or more and 12 or less.
- the filter medium has a Y-shaped circumferential cross section and is composed of fibers having a single fiber denier of 8 or more and 12 or less.
- FIG. It can be configured to be sandwiched between the tobacco rod portion 11 and the filter segment 13 adjacent to each other.
- the filter segment 13 and cooling segment 12 will be described in detail below.
- the filter segment 13 includes a filter medium, which has a Y-shaped circumferential cross section and is composed of fibers having a single fiber denier of 8 or more and 12 or less, and is used as a general filter.
- a filter medium which has a Y-shaped circumferential cross section and is composed of fibers having a single fiber denier of 8 or more and 12 or less, and is used as a general filter.
- General functions of filters include, for example, adjusting the amount of air mixed when inhaling aerosols, etc., reducing flavor, reducing nicotine and tar, etc., but having all of these functions is not enough. don't need it.
- electrically heated tobacco products which tend to produce less components and have a lower filling rate of tobacco fillers, suppress the filtering function while preventing the tobacco fillers from falling. Prevention is also one of the important functions.
- the shape of the filter segment 13 is not particularly limited, and a known shape can be adopted. Usually, it can have a columnar shape, and the following aspects can be used.
- the circumferential cross-sectional shape of the filter segment 13 is substantially circular, and the diameter of the circle can be appropriately changed according to the size of the product. Above all, it is preferably 8.5 mm or less, and more preferably 5.0 mm or more and 8.0 mm or less. If the circumferential cross section is not circular, the diameter of the circle is assumed to be the diameter of a circle having the same area as that of the cross section.
- the length of the circumference of the circumferential cross-sectional shape of the filter segment 13 can be appropriately changed according to the size of the product. 16.0 mm or more and 25.0 mm or less is more preferable.
- the length of the longitudinal direction of the filter segment 13 can be appropriately changed according to the size of the product, but it is usually 15 mm or more and 35 mm or less, preferably 17.5 mm or more and 32.5 mm or less. It is more preferably 0 mm or more and 30.0 mm or less.
- the shape and dimensions of the filter material can be appropriately adjusted so that the shape and dimensions of the filter segment 13 are within the above range, but the length of the filter material in the longitudinal direction can be appropriately changed according to the size of the product.
- the desired hardness From the viewpoint of obtaining the desired hardness, it is usually 3 mm or more and 30 mm or less, preferably 5 mm or more and 20 mm or less, more preferably 8 mm or more and 18 mm or less, and 10 mm or more and 15 mm or less. is more preferable.
- the ventilation resistance in the longitudinal direction of the filter segment 13 is not particularly limited, but is usually 1.0 mmH 2 O/mm or more and 4.0 mmH 2 O/mm or less from the viewpoint of ease of absorption.
- the filter medium has a perfume capsule described later, from the viewpoint of ease of absorption, it is preferably 1.5 mmH 2 O / mm or more and 4.0 mmH 2 O / mm or less.
- a flavoring agent described later particularly when a crystalline substance such as menthol is contained as a flavoring agent, it is more preferably 2.5 mmH 2 O / mm or more and 3.6 mmH 2 O / mm or less , when no flavoring agent is contained, it is more preferably 1.9 mmH 2 O/mm or more and 3.0 mmH 2 O/mm or less.
- the filter medium does not have a perfume capsule, which will be described later, from the viewpoint of ease of absorption, regardless of whether it contains a perfume agent, it is 1.3 mmH 2 O / mm or more, 2.4 mmH 2 O / mm or less.
- airflow resistance conditions can also be applied as airflow resistance conditions in the airflow direction of the filter material.
- the above airflow resistance is measured according to the ISO standard method (ISO6565) using, for example, a filter airflow resistance measuring instrument manufactured by Cerulean.
- the ventilation resistance of the filter segment 13 is such that a predetermined air flow rate (17.5 cc/ min) indicates the air pressure difference between the first end surface and the second end surface when air is flowed. Units are generally expressed in mmH2O . It is known that the relationship between the ventilation resistance of the filter segment 13 and the length of the filter segment 13 is proportional in the length range (5 mm to 200 mm in length) that is usually implemented, and if the length is doubled , the ventilation resistance of the filter segment 13 is doubled.
- the mode of the filter segment 13 can be a plain filter including a single filter segment, a multi-segment filter including a plurality of filter segments such as a dual filter or a triple filter, or the like.
- the filter segment 13 can be produced by a known method. For example, when synthetic fibers such as cellulose acetate tow are used as the material for the filter medium, a polymer solution containing a polymer and a solvent is spun and crimped. It can be manufactured by a method. As the method, for example, the method described in International Publication No. 2013/067511 can be used. In manufacturing the filter segment 13, it is possible to appropriately design the adjustment of ventilation resistance and the addition of additives (known adsorbents, fragrances (for example, menthol), granular activated carbon, fragrance-retaining materials, etc.) to the filter material.
- additives known adsorbents, fragrances (for example, menthol), granular activated carbon, fragrance-retaining materials, etc.
- the filter medium constituting the filter segment 13 is not particularly limited as long as it is composed of fibers having a Y-shaped circumferential cross section and a single fiber denier of 8 or more and 12 or less.
- a tow such as cellulose acetate tow composed of fibers having a directional cross section processed into a cylindrical shape can be used.
- the shape of the circumferential cross-section of the fibers forming the tow is Y-shaped.
- the fiber shape is more complicated than when a tow having a general fiber shape such as a circular shape is used. It is easy to obtain, and in particular allows the production of filter segments with high component delivery and desired hardness while using low amounts, ie, at low cost.
- the single fiber denier (g/9000m) of the fiber is not particularly limited as long as it is 8 or more and 12 or less from the viewpoint of improving the delivery amount of the component generated by heating, and may be 9 or more and 11 or less. . If the single fiber denier of the fiber is below the above range, the structure of the fibers that make up the filter medium will be too dense, resulting in a decrease in the delivery amount of the components. is too sparse, so sufficient hardness cannot be obtained.
- the total fiber denier (g/9000m) of the fibers is not particularly limited, but from the viewpoint of improving the delivery amount of components generated by heating, the total fiber denier may be 12000 or more and 35000 or less, and may be 15000 or more and 30000. The following are preferable.
- single fiber denier and total fiber denier are particularly preferred when the circumference of the mouthpiece portion is 22 mm.
- triacetin may be added in an amount of 5 wt % or more and 10 wt % or less based on the total fiber weight in order to improve filter hardness.
- the method for producing fibers having a Y-shaped circumferential cross section is not particularly limited.
- the pulp raw material is acetylated to produce acetate flakes (cellulose acetate), and then dissolved in acetone with a dissolver.
- a fibrous bundle can be produced by dissolving (doping) acetate flakes and spinning them.
- the circumferential cross section can be made Y-shaped by changing the shape of the nozzle nozzle. Also, by changing the nozzle hole diameter, the fiber thickness (filament denier) can be changed. After that, the total denier is determined according to the required airflow resistance, which determines the number of bundled yarns (total neil ⁇ filament denier), and is spun using the required number of spinning chambers to produce the spun-bunched acetate fibers.
- the tow that is uniformly corrugated (crimped) by a crimper and flowed in a ribbon shape can be layered and packed while being twisted by a packing machine.
- the density of the filter medium (particularly, when it contains a flavor capsule to be described later, the density of the state without the flavor capsule) is not particularly limited, but from the viewpoint of obtaining the desired hardness, it is usually 0.09 g / cm. 3 or more and 0.25 g/cm 3 or less, preferably 0.09 g/cm 3 or more and 0.20 g/cm 3 or less, and 0.09 g/cm 3 or more and 0.14 g/cm 3 or less. more preferably 0.11 g/cm 3 or more and 0.14 g/cm 3 or less.
- the compression change rate P of the filter material represented by the following formula (1) is one of the indicators of hardness, and is not particularly limited, but from the viewpoint of obtaining the desired hardness, it is usually 85%. 98% or less, preferably 88% or more and 95% or less, more preferably 90% or more and 93% or less.
- the method for measuring this compression change rate P is not particularly limited, but it can be measured using, for example, the SODIM-H Hardness module manufactured by Sodim SAS, and the numerical value is adjusted by changing the density and material of the filter material. can do.
- the filter medium may contain components such as flavoring materials separately from the flavoring capsules described later. etc., and menthol is preferred. One of these components may be used alone, or two or more thereof may be used in combination in any desired type and ratio.
- the content of the flavoring agent (especially menthol) in the filter medium is not particularly limited, and is usually 0.5% by weight or more and 15% by weight or less, and 3% by weight. Above, it is preferably 10% by weight or less, and more preferably 10% by weight or more and 5% by weight or less.
- the filter media may have a crushable additive release container (eg, flavor capsule) disposed therein that includes a crushable outer shell such as gelatin.
- a crushable additive release container eg, flavor capsule
- the embodiment of the flavor capsule also called “additive release container” in the technical field
- a crushable additive containing a crushable outer shell such as gelatin can be a release container.
- the flavor capsule when broken before, during, or after use by the user of the tobacco product, releases the liquid or substance (usually the flavoring agent) contained within the flavor capsule, which then releases the The liquid or substance is transferred to the tobacco smoke during use of the tobacco product and to the surrounding environment after use.
- the shape of the flavor capsule is not particularly limited, and may be, for example, an easily breakable flavor capsule, and the shape is preferably spherical.
- the additive contained in the flavor capsule may contain any of the additives described above, but it is particularly preferable to contain a flavoring agent and activated carbon. Additives may also include one or more materials to help filter smoke. Although the form of the additive is not particularly limited, it is usually liquid or solid. It should be noted that the use of capsules containing excipients is well known in the art. Destructible flavor capsules and methods of making same are well known in the art.
- Flavoring agents may include, for example, menthol, spearmint, peppermint, fenugreek, cloves, medium-chain triglycerides (MCT), and the like.
- the flavoring agent can be menthol, or menthol and the like, or combinations thereof.
- the filter segment 13 may be provided with a paper roll (filter plug paper roll) around which the above-described filter material or the like is wound.
- Embodiments of the web are not particularly limited and may include one or more rows of adhesive-containing seams.
- the adhesive may comprise a hot melt adhesive, and the hot melt adhesive may comprise polyvinyl alcohol.
- the filter segment consists of two or more segments, it is preferable to wind these two or more segments together on the roll paper.
- the material of the roll paper is not particularly limited, and known materials can be used, and it may contain a filler such as calcium carbonate.
- the thickness of the roll paper is not particularly limited, and is usually 20 ⁇ m or more and 140 ⁇ m or less, preferably 30 ⁇ m or more and 130 ⁇ m or less, and more preferably 30 ⁇ m or more and 120 ⁇ m or less.
- the basis weight of the web is not particularly limited, and is usually 20 gsm or more and 100 gsm or less, preferably 22 gsm or more and 95 gsm or less, and more preferably 23 gsm or more and 90 gsm or less.
- the web may or may not be coated, but from the viewpoint of imparting functions other than strength and structural rigidity, it is preferably coated with a desired material.
- the filter segment 13 may further include a center hole segment having one or more hollow portions.
- the center hole segment is usually arranged closer to the cooling segment than the filter media, preferably adjacent to the cooling segment.
- a center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner roll paper) covering the filling layer.
- the center hole segment is composed of a filling layer having a hollow portion and an inner plug wrapper covering the filling layer.
- the center hole segment has the function of increasing the strength of the mouthpiece.
- the filling layer has an inner diameter of ⁇ 1.0 mm or more, ⁇ 5. It can be a rod of 0 mm or less. Since the packed bed has a high packing density of fibers, air and aerosol flow only through the hollow portion during suction, and hardly flow inside the packed bed. Since the filling layer inside the center hole segment is a fiber filling layer, the feeling of touch from the outside during use is less likely to cause discomfort to the user. Note that the center hole segment may not have the inner plug wrapper and may retain its shape by thermoforming.
- the center hole segment and the filter media may be connected, for example, with an outer plug wrapper (outer roll paper).
- the outer plug wrapper can be, for example, a cylinder of paper.
- the tobacco rod portion 11, the cooling segment 12, and the connected center hole segment and filter material may be connected by, for example, mouthpiece lining paper.
- paste such as vinyl acetate paste is applied to the inner surface of the mouthpiece lining paper, and the tobacco rod portion 11, the cooling segment 12, and the already connected center hole segment and filter material are placed and wound. You can connect with In addition, these may be divided into multiple times and connected with multiple lining papers.
- the cooling segment 12 is sandwiched adjacent to the tobacco rod portion and the filter segment, and is generally a rod-shaped member provided with a cavity having a hollow circumferential section such as a cylinder.
- the cooling segment 12 may be circumferentially and concentrically provided with perforations V (also referred to in the technical field as "ventilation filters (Vf)").
- Vf ventilation filters
- a hole group is formed in a region of less than 4 mm in the direction of the cooling segment from the boundary between the cooling segment and the filter segment. is preferably not provided.
- the non-combustion heating tobacco 10 has the tobacco rod portion 11, the cooling segment 12, and the filter segment 13 wrapped with the tipping paper 15, the tipping paper 15 is provided with the cooling segment 12.
- An aperture is preferably provided at a position directly above the aperture V.
- tipping paper 15 having openings overlapping with the openings V may be prepared and wrapped. After making the non-combustion heated tobacco 10 with the cooling segment 12 without V, it is preferred to drill holes through the cooling segment 12 and the tipping paper 15 at the same time.
- the region where the opening V exists is preferably a region of 4 mm or more in the direction of the cooling segment from the boundary between the cooling segment 12 and the filter segment 13.
- the area is 4.5 mm or more, more preferably 5 mm or more, and particularly preferably 5.5 mm or more.
- the following area is preferable, the area of 10 mm or less is more preferable, and the area of 7 mm or less is even more preferable.
- the region where the opening V exists is preferably a region of 22 mm or more in the direction from the mouthpiece end of the non-combustion heating tobacco to the cooling segment side.
- the area is preferably 5 mm or more, preferably 24 mm or more, more preferably 25 mm or more, and from the viewpoint of ensuring the cooling function, it is preferably 38 mm or less.
- the area is preferably 36.5 mm or less, more preferably 33 mm or less.
- the delivery amount of the component generated by heating it is preferably 18 mm or less, more preferably 16.5 mm or less, and 15 mm or less. is more preferable, and a region of 14.5 mm or less is particularly preferable.
- the diameter of the opening V is not particularly limited, it is preferably 100 ⁇ m or more and 1000 ⁇ m or less, and more preferably 300 ⁇ m or more and 800 ⁇ m or less.
- the aperture is preferably substantially circular or substantially elliptical, and in the case of the substantially elliptical shape, the aforementioned diameter represents the major axis.
- the length of the cooling segment in the longitudinal direction can be appropriately changed according to the size of the product, but it is usually 15 mm or more, preferably 20 mm or more, and usually 40 mm or less, and 35 mm or less. is preferred, and 30 mm or less is more preferred.
- the length of the cooling segment in the longitudinal direction is set to the lower limit or more, a sufficient cooling effect can be secured and a good flavor can be obtained. Loss can be suppressed by adhering to the inner wall of the segment.
- the total surface area of the cooling segment 12 is not particularly limited, and may be, for example, 150 mm 2 /mm or more and 1000 mm 2 /mm or less.
- This surface area is the surface area per length (mm) of the cooling segment 12 in the ventilation direction.
- the total surface area of the cooling segment 12 is preferably 200 mm 2 /mm or more, more preferably 250 mm 2 /mm or more, while preferably 600 mm 2 /mm or less, and preferably 400 mm 2 /mm or less. It is more preferable to have
- cooling segment 12 desirably has a large total surface area in its internal structure.
- cooling segment 12 may be formed by a thin sheet of material that is crumpled to form channels and then pleated, gathered and folded. The more folds or folds in a given volume of the element, the greater the total surface area of the cooling segment.
- the thickness of the constituent material of the cooling segment 12 is not particularly limited, and may be, for example, 5 ⁇ m or more and 500 ⁇ m or less, or 10 ⁇ m or more and 250 ⁇ m or less.
- the form of the tobacco rod portion 11 is not particularly limited as long as it is a known form, but is usually a form in which a tobacco filler is wrapped with wrapping paper.
- the tobacco filling is not particularly limited, and known materials such as shredded tobacco and reconstituted tobacco sheets can be used.
- the tobacco fill may also contain an aerosol base.
- the aerosol base is a base that generates an aerosol when heated, and is exemplified by glycerin, propylene glycol, triacetin, 1,3-butanediol, or mixtures thereof.
- the content of the aerosol base in the tobacco filling is not particularly limited, and is usually 5% by weight or more relative to the total weight of the tobacco filling from the viewpoint of sufficiently generating an aerosol and imparting a good flavor. , preferably 10% by weight or more, and usually 50% by weight or less, preferably 15% by weight or more and 25% by weight or less.
- the tobacco rod portion 11 may have a fitting portion with a heater member or the like for heating non-combustion heating tobacco. It is preferable that the tobacco rod portion 11 formed by wrapping the tobacco filling material with wrapping paper has a columnar shape.
- the aspect ratio represented by the height of is preferably 1 or more.
- the shape of the bottom is not limited, and may be polygonal, rounded polygon, circle, ellipse, etc.
- the width is the diameter if the bottom is circular, the major axis if the bottom is elliptical, or polygonal or rounded polygon. In some cases, it is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse. It is preferable that the tobacco filling material constituting the tobacco rod portion 11 has a height of about 10 to 70 mm and a width of about 4 to 9 mm.
- the length of the longitudinal direction of the tobacco rod portion 11 can be appropriately changed according to the size of the product, but is usually 10 mm or more, preferably 12 mm or more, more preferably 15 mm or more, and 18 mm or more. and is usually 70 mm or less, preferably 50 mm or less, more preferably 30 mm or less, and even more preferably 25 mm or less.
- the ratio of the length of the tobacco rod portion 11 to the length h in the longitudinal direction of the non-combustion heating tobacco 10 is usually 10% or more, preferably 20% or more, from the viewpoint of the balance between the delivery amount and the aerosol temperature. It is preferably 25% or more, more preferably 30% or more, and is usually 60% or less, preferably 50% or less, and 45% or less. More preferably, it is 40% or less.
- the structure of the wrapping paper is not particularly limited, and it can be in a general form, for example, a paper containing pulp as a main component.
- pulp in addition to wood pulp such as softwood pulp or hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, or esparto, which is generally used for wrapping paper for tobacco products, can be used. It may be obtained by mixing and manufacturing.
- the types of pulp that can be used include chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, and the like prepared by the kraft cooking method, acid/neutral/alkaline sulfite cooking method, or soda salt cooking method.
- the texture is adjusted and uniformed to produce wrapping paper.
- a wet strength agent may be added to impart water resistance to the wrapping paper, or a sizing agent may be added to adjust the printing quality of the wrapping paper.
- aluminum sulfate, various anionic, cationic, nonionic or amphoteric retention improvers, drainage improvers, papermaking internal additives such as paper strength agents, dyes, pH adjusters, antifoaming Additives for papermaking such as additives, pitch control agents, or slime control agents can be added.
- the basis weight of the base paper for wrapping paper is, for example, usually 20 gsm or more, preferably 25 gsm or more. On the other hand, the basis weight is usually 65 gsm or less, preferably 50 gsm or less, more preferably 45 gsm or less.
- the thickness of the wrapping paper having the above properties is not particularly limited, and is usually 10 ⁇ m or more, preferably 20 ⁇ m or more, more preferably 30 ⁇ m or more, from the viewpoint of rigidity, air permeability, and ease of adjustment during paper production. and is usually 100 ⁇ m or less, preferably 75 ⁇ m or less, more preferably 50 ⁇ m or less.
- the shape of the wrapping paper of the non-combustion-heating cigarette may be square or rectangular.
- the length of one side can be about 12 to 70 mm, and the length of the other side is about 15 to 28 mm.
- a preferable length of one side is 22 to 24 mm, and a more preferable length is about 23 mm.
- the tobacco filling is wrapped with wrapping paper in a columnar shape, for example, the end of the wrapping paper in the w direction and the end on the opposite side are overlapped by about 2 mm and glued to form a columnar paper tube. It becomes a shape filled with tobacco filling.
- the size of the rectangular wrapping paper can be determined according to the size of the finished tobacco rod portion 11 .
- the length of one side is 20 to 60 mm, and the length of the other side is 15 to 60 mm. 28 mm can be mentioned.
- the wrapping paper may contain fillers.
- the filler content may be 10% by weight or more and less than 60% by weight, preferably 15% by weight or more and 45% by weight or less, based on the total weight of the wrapping paper.
- the filler content is 15% or more and 45% or less by weight in the preferred basis weight range (25 gsm or more and 45 gsm or less).
- the filler content is preferably 15% or more and 45% or less by weight
- the filler content is preferably 25% or more and 45% by weight. % or less.
- calcium carbonate, titanium dioxide, kaolin, or the like can be used, but calcium carbonate is preferably used from the viewpoint of enhancing flavor and whiteness.
- auxiliary agents other than the base paper and the filler may be added to the wrapping paper.
- a water resistance improver can be added to improve the water resistance.
- Water resistance improvers include wet strength agents (WS agents) and sizing agents.
- wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like.
- sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.
- a paper strength agent may be added, and examples thereof include polyacrylamide, cationic starch, oxidized starch, CMC, polyamide epichlorohydrin resin, polyvinyl alcohol, and the like.
- oxidized starch improves air permeability (Japanese Patent Application Laid-Open No. 2017-218699).
- the wrapping paper may be appropriately coated.
- a coating agent may be added to at least one of the front and back sides of the wrapping paper.
- the coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred.
- alginic acid or its salts e.g., sodium salt
- polysaccharides such as pectin, cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, or nitrocellulose
- starch or derivatives thereof e.g., carboxymethyl starch, hydroxyalkyl starch, or ether derivatives such as cationic starch, ester derivatives such as starch acetate, starch phosphate or starch octenylsuccinate.
- the configuration of the tipping paper 15 is not particularly limited, and may be a general form, for example, one containing pulp as a main component.
- pulp in addition to being made from wood pulp such as softwood pulp or hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, or esparto, which is generally used for wrapping paper for tobacco articles, can be used. It may be obtained by mixing and manufacturing. These pulps may be used alone or in combination of multiple types at any ratio.
- the tipping paper 15 may be composed of one sheet, or may be composed of a plurality of sheets or more.
- the pulp may be chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, or the like prepared by the kraft cooking method, acid/neutral/alkaline sulfite cooking method, or soda salt cooking method.
- the tip paper 15 may be manufactured by a manufacturing method to be described later, or may be a commercially available product.
- the shape of the tipping paper 15 is not particularly limited, and can be square or rectangular, for example.
- the basis weight of the tipping paper 15 is not particularly limited, but is usually 32 gsm or more and 40 gsm or less, preferably 33 gsm or more and 39 gsm or less, and more preferably 34 gsm or more and 38 gsm or less.
- the air permeability of the tipping paper 15 is not particularly limited, but is generally 0 Coresta unit or more and 30000 Coresta unit or less, preferably more than 0 Coresta unit and 10000 Coresta unit or less. Air permeability is a value measured in accordance with ISO 2965:2009, and is expressed as the flow rate (cm 3 ) of gas passing through an area of 1 cm 2 per minute when the pressure difference between both sides of the paper is 1 kPa. be done.
- One Coresta unit (1 Coresta unit, 1 C.U.) is cm 3 /(min ⁇ cm 2 ) under 1 kPa.
- the chipping paper 15 may contain fillers other than the above pulp, such as metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide, or aluminum oxide, and barium sulfate. , or metal sulfates such as calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, or gypsum, particularly from the viewpoint of improving whiteness and opacity and increasing the heating rate preferably contains calcium carbonate from These fillers may be used singly or in combination of two or more.
- the chipping paper 15 may be added with various auxiliary agents, for example, it may have a water resistance improver to improve it.
- Water resistance improvers include wet strength agents (WS agents) and sizing agents.
- wet strength agents include urea formaldehyde resin, melamine formaldehyde resin, polyamide epichlorohydrin (PAE), and the like.
- sizing agents include rosin soap, alkyl ketene dimer (AKD), alkenyl succinic anhydride (ASA), and highly saponified polyvinyl alcohol having a degree of saponification of 90% or more.
- a coating agent may be added to at least one of the front and back sides of the tip paper 15 .
- the coating agent is not particularly limited, but a coating agent capable of forming a film on the paper surface and reducing liquid permeability is preferred.
- the configuration of the non-combustion heated tobacco according to this embodiment can be used for electrically heated tobacco products described later, but can also be applied to cigarettes (cigarettes) accompanied by combustion.
- the method for producing the above-described non-combustion heating tobacco is not particularly limited, and a known method can be applied.
- it can be produced by winding the tobacco rod portion and the mouthpiece portion with tipping paper.
- An electrically heated tobacco product (also referred to simply as an "electrically heated tobacco product") according to another embodiment of the present invention comprises a heater member, a battery unit serving as a power source for the heater member, and a device for controlling the heater member. and a control unit for heating and the above non-combustion heated tobacco inserted into contact with the heater member.
- the electrically heated tobacco product it may be an aspect in which the outer peripheral surface of the non-combustion heating tobacco 10 is heated as shown in FIG. A mode of heating from the inside of the rod portion 11 may be employed.
- the electrically heated device 20 shown in FIGS. 2 and 3 is provided with an air introduction hole, it is not shown here.
- the electrically heated tobacco product 30 will be described below with reference to FIG. 2 and 3, the symbols representing the components shown in FIGS. 2 and 3 are partially omitted.
- the electrically heated tobacco product 30 is used by inserting the above-described non-combustion heated tobacco 10 into contact with the heater member 21 arranged inside the electrically heated device 20 .
- the electrically heated device 20 has, for example, a battery unit 22 and a control unit 23 inside a resin frame 24 .
- the non-combustion heating tobacco 10 is inserted into the electric heating device 20
- the outer peripheral surface of the tobacco rod portion 11 comes into contact with the heater member 21 of the electric heating device 20, and eventually the entire outer peripheral surface of the tobacco rod portion 11 and the tipping paper come into contact with each other. contacts the heater member 21 .
- the heater member 21 of the electric heating device 20 generates heat under the control of the control unit 23 .
- the heat is transmitted to the tobacco rod portion 11 of the non-combustion heating tobacco 10, the aerosol base material, the flavor component, and the like contained in the tobacco filler of the tobacco rod portion 11 volatilize.
- the heater member 21 may be, for example, a sheet heater, a flat heater, or a tubular heater.
- a sheet-shaped heater is a flexible sheet-shaped heater, for example, a heater including a heat-resistant polymer film (about 20 ⁇ m to 225 ⁇ m in thickness) such as polyimide.
- a flat heater is a rigid flat heater (thickness of about 200 ⁇ m to 500 ⁇ m), and includes, for example, a heater having a resistance circuit on a flat plate substrate and using the relevant portion as a heat generating portion.
- a cylindrical heater is a hollow or solid cylindrical heater (thickness of about 200 ⁇ m to 500 ⁇ m), and includes, for example, a heater having a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like and using that portion as a heat generating portion. . Further, a rod-shaped heater and a cone-shaped heater made of metal, etc., which have a resistance circuit inside and use the relevant portion as a heat generating portion, may also be used.
- the circumferential cross-sectional shape of the cylindrical heater may be circular, elliptical, polygonal, polygonal with rounded corners, or the like. In the case of heating the outer peripheral surface of the non-combustion heating tobacco 10 as shown in FIG.
- the longitudinal length of the heater member 21 can be within a range of L ⁇ 5.0 mm, where L mm is the longitudinal length of the tobacco rod portion 11 .
- the length of the heater member 21 in the longitudinal direction is L mm from the viewpoint of aerosol delivery, that is, the length of the heater member 21 in the long axis direction is sufficient to sufficiently conduct heat to the tobacco rod portion 11 and sufficiently volatilize the aerosol base material and flavor components contained in the tobacco filler. From the viewpoint of suppressing the generation of components that have an undesired effect on flavor, etc. 0 mm or less, L+3.5 mm or less, L+4.0 mm or less, L+4.5 mm or less, or L+5.0 mm or less.
- the heating intensity such as the heating time and heating temperature of the non-combustion heating tobacco 10 by the heater member 21 can be set in advance for each electrically heated tobacco product 30 .
- preheating is performed for a certain period of time so that the outer circumference of the portion of the non-combustion heating tobacco 10 inserted into the electrically heating device 20 It can be set in advance so that the surface is heated until the temperature reaches X (° C.), and then the temperature is maintained at a constant temperature of X (° C.) or less.
- the above X (° C.) is preferably 80° C. or higher and 400° C. or lower from the viewpoint of delivery amount of components generated by heating.
- Vapor containing components derived from the aerosol base material and components derived from flavor components generated from the tobacco rod portion 11 by heating by the heater member 21 passes through the mouthpiece portion 14 composed of the cooling segment 12, the filter segment 13, and the like, and reaches the user. reach the oral cavity of
- the openings V provided in the cooling segment 12 are arranged as shown in FIG. It is preferable that the segment 12 is located closer to the mouth end than the mouth end side end of the region in contact with the electrically heated device 20 (point indicated by arrow X in the figure).
- the insertion opening of the electrically heated device 20 for the non-combustion heating tobacco 10 may be tapered as shown in FIG. 5 in order to facilitate the insertion of the non-combustion heating tobacco 10.
- the end portion of the region in contact with the electrically heated device 20 on the side of the mouth end is the position indicated by the arrow Y in the figure. 4 and 5, the symbols representing the components shown in FIGS. 1 to 3 are partially omitted.
- Example 1 As a tobacco filler, 15 g/100 g of glycerin and 4 g/100 g of propylene glycol were mixed with shredded sheet tobacco. Using a high-speed winding machine, the tobacco filling was wound up with wrapping paper (manufactured by Nippon Paper Papyria, basis weight: 35 g/m 2 , thickness: 52 ⁇ m). The cut weight per roll was 0.8 g, the winding circumference was 22 mm, and the winding length was 68 mm. 200 rolled tobacco rods per level were stored in a closed plastic container. The stored tobacco rod portion was cut to a length of 20 mm.
- wrapping paper manufactured by Nippon Paper Papyria, basis weight: 35 g/m 2 , thickness: 52 ⁇ m.
- the cut weight per roll was 0.8 g
- the winding circumference was 22 mm
- the winding length was 68 mm.
- 200 rolled tobacco rods per level were stored in a closed plastic container. The stored tobacco
- a tobacco rod portion a paper tube with a length of 20 mm, a center hole having a through hole with a length of 12 mm (diameter of 4.5 mm), and a cellulose acetate fiber with a Y-shaped circumferential cross section with a length of 8 mm (single Fiber denier (g/9000m): 12, total fiber denier (g/9000m): 28000) (density: 0.122 g/cm 3 , compression change rate P (hereinafter referred to as “hardness”).
- Example 1 A non-combustion heating cigarette of Example 1 was prepared by opening a hole in the opening.
- the longitudinal ventilation resistance of the filter segment of the non-combustion heating cigarette was 1.35 mmH 2 O/mm.
- the compression change rate P (hardness) of the filter medium represented by the above formula (1) was measured using a SODIM-H Hardness module manufactured by Sodim SAS. This is the same for all the following examples and comparative examples.
- Example 2 A perfume capsule containing menthol (a spherical shape with a diameter of 3.5 mm. The same applies to the perfume capsules in other examples and comparative examples) was placed inside the filter medium, and the length of the center hole was changed from 12 mm to 8 mm.
- a non-combustion heating cigarette of Example 2 was produced in the same manner as the non-combustion heating tobacco of Example 1, except that the length of the filter medium was changed from 8 mm to 12 mm.
- the density (density without flavoring capsules), hardness, and ventilation resistance in the longitudinal direction of the filter segment of the non-combustion heating cigarette are 0.122 g/cm 3 , 88%, and 1.93 mmH 2 O/, respectively. mm.
- the parameters related to the filter segment were evaluated without crushing the perfume capsule. This also applies to other examples and comparative examples using perfume capsules.
- Example 4 A perfume capsule containing menthol is placed inside the filter medium, the length of the center hole is changed from 12 mm to 8 mm, the length of the filter medium is changed from 8 mm to 12 mm, the single fiber denier (g / 9000 m): 12, the total Fiber Denier (g/9000m): from 28000 filter media (density: 0.122 g/cm 3 , hardness: 88%), single fiber denier (g/9000m): 8, total fiber denier (g/9000m): 28000 filter media (density: 0.123 g/cm 3 , hardness: 91%), the non-combustion heating tobacco of Example 4 was produced in the same manner as the non-combustion heating tobacco of Example 1, except that Tobacco was produced.
- the longitudinal ventilation resistance of the filter segment of the non-combustion heating cigarette was 2.76 mmH 2 O/mm.
- Example 5 Except for changing the length of the center hole from 12 mm to 6 mm and the length of the filter material from 8 mm to 14 mm, the non-combustion heating tobacco of Example 5 was processed in the same manner as the non-combustion heating tobacco of Example 1. Tobacco was produced.
- the density, hardness, and air resistance in the longitudinal direction of the filter segment of the non-combustion heating cigarette were 0.129 g/cm 3 , 90%, and 1.58 mmH 2 O/mm, respectively.
- Example 6 The length of the center hole was changed from 12 mm to 6 mm, the length of the filter material was changed from 8 mm to 14 mm, and the filter material (density : 0.122 g/cm 3 , hardness: 88%) to single fiber denier (g/9000 m): 8, total fiber denier (g/9000 m): 28000 filter media (density: 0.119 g/cm 3 , Hardness: 89%).
- the longitudinal ventilation resistance of the filter segment of the non-combustion heating cigarette was 1.69 mmH 2 O/mm.
- Example 7 A perfume capsule containing menthol was placed inside the filter medium, and 6 mg/12 mm of menthol was added to the filter medium, and the length of the center hole was changed from 12 mm to 8 mm, and the length of the filter medium was changed from 8 mm to 12 mm.
- a non-combustion heating tobacco of Example 7 was produced in the same manner as the non-combustion heating tobacco of Example 1 except for the above.
- the density (density without flavoring capsules), hardness, and ventilation resistance in the longitudinal direction of the filter segment of the non-combustion heating cigarette are 0.122 g/cm 3 , 91%, and 2.48 mmH 2 O/ mm.
- Table 1 summarizes the manufacturing conditions and characteristics of the non-combustion heating tobacco in each of the above examples.
- the smoking test was carried out using a single bottle automatic smoking machine manufactured by Borgwaldt under the conditions of a flow rate of 55 cc/2 seconds and a smoking interval of 30 seconds.
- the opening formed in the cooling segment was set to be 25.5 mm from the mouth end side end of the region where the non-combustion heating tobacco and the electric heating device were in contact.
- the mainstream smoke generated in the smoking test was collected on a Cambridge pad, and puffing was performed 12 times for Examples 1 to 6 and Comparative Example 1, and 10 times for Examples 7 and 8 and Comparative Examples 2 and 3.
- the Cambridge pad was taken out, extracted with 10 ml of ethanol, and the amount of each component in the mainstream smoke sampled at each puff operation was measured using GC-MS.
- the above evaluation was performed after crushing the flavor capsules.
- the non-combustion heating tobacco having a single fiber denier of 8 or more and 12 or less, Compared with non-combustion heating type cigarettes whose short fiber denier is outside this range, it was found to be superior in terms of the delivery amount of both nicotine and glycerin, which are indicators of the component amount of mainstream smoke.
- non-combustion heated tobacco 11 tobacco rod portion 12 cooling segment 13 filter segment 14 mouthpiece portion 15 chip paper V aperture 20 electric heating device 21 heater member 22 battery unit 23 control unit 24 frame 30 electric heating tobacco product
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Abstract
Description
一般的に、電気加熱式たばこ製品では、非燃焼加熱式たばこを電気加熱式デバイスに挿入した後、ヒーター部材を発熱させることにより、該ヒーター部材に接触する箇所を起点としてたばこロッドが加熱され、発生した成分が使用者にデリバリーされる。
特許文献2には、多糖類のゲルに包含される揮発性含有剤をたばこロッドに添加することにより、初回パフ時の煙中に含まれる揮発性香料のデリバリー量を増やし、蔵置中にも揮発性香料の染み出しを生じることなく、かつ蔵置後の喫煙時に所望の揮発性香料デリバリー量を維持することができるシガレットが開示されている。
特許文献3には、たばこロッドの下流に配置されたフィルターに吸着剤又は液状吸収材を添加することにより、燃焼により生成する好ましくない成分を低減し、かつ良好な香味をデリバリーすることができるシガレットが開示されている。
また、電気加熱式たばこ製品は、燃焼を伴うシガレットと比較して、使用時の加熱温度が低く、生成される成分の量が少ないため、特に成分のデリバリー量の改善が望まれている。
そこで、本発明では、加熱により生成される成分のデリバリー量が改善された非燃焼加熱式たばこ及び電気加熱式たばこ製品を提供することを課題とする。
[1] たばこロッド部と、マウスピース部とを備える棒状の非燃焼加熱式たばこであって、
前記マウスピース部が、フィルター濾材を有するフィルターセグメントを備え、
前記フィルター濾材が、周方向断面がY形状であり、かつ、単繊維デニールが8以上、12以下である繊維から構成される、非燃焼加熱式たばこ。
[2] 前記フィルター濾材の密度が、0.09g/cm3以上、0.14g/cm3以下である、[1]に記載の非燃焼加熱式たばこ。
[3] 下記の式(1)で表されるフィルター濾材の圧縮変化率Pが、88%以上、95%以下である、[1]又は[2]に記載の非燃焼加熱式たばこ。
P=(D1×100)/D2 (1)
P(%):圧縮変化率
D1(mm):フィルター濾材が通気方向に垂直な方向に変形するように、長軸方向の単位長さ当たりの圧縮荷重3N/mm、圧縮時間10秒の条件でフィルター濾材を圧縮した後の圧縮方向のフィルター濾材の直径
D2(mm):圧縮前のフィルター濾材の平均直径
[4] 前記フィルター濾材の長軸方向の長さが、5mm以上、20mm以下である、[1]~[3]のいずれかに記載の非燃焼加熱式たばこ。
[5] 前記フィルターセグメントの長軸方向の通気抵抗が、1.0mmH2O/mm以上、4.0mmH2O/mm以下である、[1]~[4]のいずれかに記載の非燃焼加熱式たばこ。
[6] 前記フィルター濾材の内部に香料カプセルが配置される、[1]~[5]のいずれかに記載の非燃焼加熱式たばこ。
[7] ヒーター部材と、該ヒーター部材の電力源となる電池ユニットと、該ヒーター部材を制御するための制御ユニットとを備える電気加熱型デバイスと、該ヒーター部材に接触するように挿入される、[1]~[6]のいずれかに記載の非燃焼加熱式たばこと、から構成される、電気加熱式たばこ製品。
また、本明細書において、「~」を用いてその前後に数値又は物性値を挟んで表現する場合、その前後の値を含むものとして用いることとする。
また、本明細書において、「複数」は、特段の断りがない限り、2以上であることを表す。
本発明の一実施形態である非燃焼加熱式たばこ(単に「非燃焼加熱式たばこ」とも称する。)は、たばこロッド部と、マウスピース部とを備える棒状の非燃焼加熱式たばこであって、
前記マウスピース部が、フィルター濾材を有するフィルターセグメントを備え、
前記フィルター濾材が、周方向断面がY形状であり、かつ、単繊維デニールが8以上、12以下である繊維から構成される、非燃焼加熱式たばこである。
実施形態に係る非燃焼加熱式たばこの一例を図1に示す。以下、該図1を参照しながら非燃焼加熱式たばこの説明を行う。
非燃焼加熱式たばこ10では、たばこロッド部11等の加熱により生成される成分がマウスピース部を通過して使用者の口内に運ばれる。加熱により生成される成分としては、例えば、香料由来の香味成分や、たばこ葉由来のニコチンやタール、エアロゾル基材由来のエアロゾル成分が挙げられる。なお、本明細書において、エアロゾル基材とは、エアロゾルを生成するための基材である。
アスペクト比=h/w
wは柱状体の底面の幅(本明細書においては、たばこロッド部側の底面の幅とする。)、hは高さであり、h≧wであることが好ましい。本明細書においては、長軸方向はhで示された方向であると規定する。したがって、仮にw≧hである場合においてもhで示された方向を便宜上長軸方向と称する。底面の形状は限定されず、多角、角丸多角、円、または楕円等であってよく、幅wは当該底面が円形の場合は直径、楕円形である場合は長径、または多角形もしくは角丸多角である場合は外接円の直径もしくは外接楕円の長径である。
非燃焼加熱式たばこ10の長軸方向の長さhは、特段制限されず、例えば、通常40mm以上であり、45mm以上であることが好ましく、50mm以上であることがより好ましい。また、通常100mm以下であり、90mm以下であることが好ましく、80mm以下であることがより好ましい。
非燃焼加熱式たばこ10の柱状体の底面の幅wは、特段制限されず、例えば、通常5mm以上であり、5.5mm以上であることが好ましい。また、通常10mm以下であり、9mm以下であることが好ましく、8mm以下であることがより好ましい。
非燃焼加熱式たばこの長軸方向の長さにおける、前記冷却セグメント、及び前記フィルターセグメントの長さの割合(冷却セグメント:フィルターセグメント)は、特段制限されないが、香料のデリバリー量の観点から、通常0.60:1.40~1.40:0.60であり、0.80~1.20:0.80~1.20であり、0.85~1.15:0.85~1.15であることが好ましく、0.90~1.10:0.90~1.10であることがより好ましく、0.95~1.05:0.95~1.05であることがさらに好ましい。
冷却セグメント及びフィルターセグメントの長さの割合を上記範囲内とすることで、冷却効果、生成した蒸気及びエアロゾルが冷却セグメントの内壁に付着することによるロスを抑制する効果、及びフィルターの空気量及び香味の調整機能のバランスがとれて、良好な香味を呈する効果を実現できる。特に、冷却セグメントを長くすると、エアロゾル等の粒子化が促進され良好な香味を実現できるが、長すぎると通過する物質の内壁への付着が生じてしまう。
通気抵抗は、ISO標準法(ISO6565:2015)に従って、例えばセルリアン社製フィルター通気抵抗測定器を使用して測定される。通気抵抗は、非燃焼加熱式たばこ10の側面における空気の透過が行なわれない状態で一方の端面(第1端面)から他方の端面(第2端面)に所定の空気流量(17.5cc/min)の空気を流した際の、第1端面と第2端面との気圧差を指す。単位は、一般的にはmmH2Oで表す。通気抵抗と非燃焼加熱式たばこの長さとの関係は、通常実施する長さ範囲(長さ5mm~200mm)においては比例関係であることが知られていて、長さが倍になれば、非燃焼加熱式たばこの通気抵抗は倍になる。
マウスピース部14は、フィルター濾材を有するフィルターセグメント13を備え、該フィルター濾材が、周方向断面がY形状であり、かつ、単繊維デニールが8以上、12以下である繊維から構成されていれば特段制限されず、例えば、図1に示すように、冷却セグメント12と、上記のフィルター濾材を含むフィルターセグメント13とを含み、非燃焼加熱式たばこ10の軸方向に対して、冷却セグメント12が、たばこロッド部11とフィルターセグメント13とに隣接して挟持されるように構成されている態様とすることができる。以下、フィルターセグメント13及び冷却セグメント12について詳細に説明する。
フィルターセグメント13は、フィルター濾材を含み、該フィルター濾材が、周方向断面がY形状であり、かつ、単繊維デニールが8以上、12以下である繊維から構成されており、一般的なフィルターとしての機能を有していれば特に制限されない。フィルターの一般的な機能とは、例えば、エアロゾル等を吸引する際に混ざる空気量の調整や、香味の軽減、ニコチンやタールの軽減等が挙げられるが、これらの機能を全て備えていることは要しない。また、紙巻きたばこ製品と比較して、生成される成分が少なく、また、たばこ充填物の充填率が低くなる傾向のある電気加熱式たばこ製品においては、濾過機能を抑えつつたばこ充填物の落下を防止する、ということも重要な機能の一つである。
フィルターセグメント13の周方向断面形状の周の長さは、製品のサイズに合わせて適宜変更し得るが、通常14.0mm以上、27.0mm以下であり、15.0mm以上、26.0mm以下であることが好ましく、16.0mm以上、25.0mm以下であることがより好ましい。
フィルターセグメント13の長軸方向の長さは、製品のサイズに合わせて適宜変更し得るが、通常15mm以上、35mm以下であり、17.5mm以上、32.5mm以下であることが好ましく、20.0mm以上、30.0mm以下であることがより好ましい。
フィルターセグメント13の形状や寸法が上記範囲となるように、フィルター濾材の形状や寸法を適宜調整できるが、フィルター濾材の長軸方向の長さは、製品のサイズに合わせて適宜変更することができ、所望の硬さを得ることができる観点から、通常3mm以上、30mm以下であり、5mm以上、20mm以下であることが好ましく、8mm以上、18mm以下であることがより好ましく、10mm以上、15mm以下であることがさらに好ましい。
上記の通気抵抗は、ISO標準法(ISO6565)に従って、例えばセルリアン社製フィルター通気抵抗測定器を使用して測定される。フィルターセグメント13の通気抵抗は、フィルターセグメント13の側面における空気の透過が行なわれない状態で一方の端面(第1端面)から他方の端面(第2端面)に所定の空気流量(17.5cc/min)の空気を流した際の、第1端面と第2端面との気圧差を指す。単位は、一般的にはmmH2Oで表す。フィルターセグメント13の通気抵抗とフィルターセグメント13の長さとの関係は、通常実施する長さ範囲(長さ5mm~200mm)においては比例関係であることが知られていて、長さが倍になれば、フィルターセグメント13の通気抵抗は倍になる。
フィルターセグメント13の製造において、通気抵抗の調整や添加物(公知の吸着剤や香料(例えばメンソール)、粒状の活性炭、香料保持材等)のフィルター濾材への添加を適宜設計できる。
トウを構成する繊維の周方向断面の形状は、Y形状である。Y形状の繊維形状を有するトウを用いた場合、円形状等の一般的な繊維形状を有するトウを用いた場合と比較して、その繊維形状が複雑であるため、デリバリー量に優れるフィルターセグメントが得られやすく、特に、少ない使用量で、つまりコストを抑えつつ、高い成分デリバリー量及び所望の硬さを有するフィルターセグメントを製造することができる。
繊維の単繊維デニール(g/9000m)は、加熱により生成される成分のデリバリー量の向上の観点から、8以上、12以下であれば特段制限されず、9以上、11以下であってもよい。繊維の単繊維デニールが上記範囲を下回ると、フィルター濾材を構成する繊維の構造が密になりすぎるため成分のデリバリー量が減少し、また、上記範囲を上回ると、フィルター濾材を構成する繊維の構造が疎になりすぎるため十分な硬さが得られない。繊維の総繊維デニール(g/9000m)は、特段制限されないが、加熱により生成される成分のデリバリー量の向上の観点から、総繊デニールは12000以上、35000以下であってよく、15000以上、30000以下であることが好ましい。これらの単繊維デニール及び総繊維デニールは、マウスピース部の円周が22mmであるときに特に好ましい。繊維を充填したフィルターの場合は、フィルター硬さを向上させるためにトリアセチンを総繊維重量に対して、5重量%以上、10重量%以下で添加してもよい。
周方向断面がY形状の繊維の製造方法は、特段制限されないが、例えばアセテート繊維とする場合、パルプ原料の酢化を経てアセテートフレーク(酢酸繊維素)を製造し、その後、溶解機でアセトンにアセテートフレークを溶解させ(ドープ)、紡糸することで繊維状の束を製造することができるが、この紡糸工程において、ノズル口金の形状を変更することで周方向断面をY形状とすることができ、また、ノズル孔径を変更することで繊維の太さ(フィラメントデニール)を変更することができる。その後、必要な通気抵抗に応じてトータルデニールを決定し、それにより集束糸数(トータルでニール÷フィラメントデニール)が決定され、必要な紡糸室数を使用して紡糸され、紡糸集束されたアセテート繊維が、捲縮機にて均一の波型(クリンプ)がかけられ、リボン状で流れてくるトウを梱包機にてあや振り込みをしながら層積みして梱包し得る。
P=(D1×100)/D2 (1)
P(%):圧縮変化率
D1(mm):フィルター濾材が通気方向に垂直な方向(円柱形状の場合には円周方向)に変形するように、長軸方向の単位長さ当たりの圧縮荷重3N/mm、圧縮時間10秒の条件でフィルター濾材を圧縮した後の圧縮方向のフィルター濾材の直径
D2(mm):圧縮前のフィルター濾材の平均直径
また、圧縮変化率は、フィルター濾材の硬さを表す指標の一つであるため、本明細書では、圧縮変化率を「硬さ」とも表す。
フィルター濾材中の香味剤(特にメンソール)の含有量(後述する香料カプセル中の香味剤は除く)は、特段制限されず、通常0.5重量%以上、15重量%以下であり、3重量%以上、10重量%以下であることが好ましく、10重量%以上、5重量%以下であることがより好ましい。
香料カプセルの形態は、特段限定されず、例えば、易破壊性の香料カプセルであってよく、その形状は球であることが好ましい。香料カプセルに含まれる添加剤としては、上述した任意の添加剤を含んでいてもよいが、特に、香味剤や活性炭素を含むことが好ましい。また、添加剤として、煙を濾過する一助となる1種類以上の材料を加えてもよい。添加剤の形態は、特段限定されないが、通常、液体又は個体である。なお、添加剤を含むカプセルの使用は、当技術分野において周知である。易破壊性の香料カプセルおよびその製造方法は、本技術分野において周知である。
香味剤としては、例えば、メンソール、スペアミント、ペパーミント、フェヌグリーク、クローブ、又は中鎖脂肪酸トリグリセリド(MCT)等であってよい。香味剤は、メンソールである、またはメンソール等、又はこれらの組合せを用いることができる。
香料カプセルを用いた場合、上述のフィルター濾材を構成する繊維の単繊維デニールが上述の範囲の上限を上回ると、香料カプセルから放出された成分のフィルターへの染みの広がりが不十分となりやすく、また、下限を下回ると、フィルターへの染みの広がりが促進され過ぎるため、成分デリバリー量が過度に抑制されやすくなる。
巻取紙の材料は特段制限されず、公知のものを用いることができ、また、炭酸カルシウム等の充填剤等を含んでいてよい。
巻取紙の厚さは、特段制限されず、通常20μm以上、140μm以下であり、30μm以上、130μm以下であることが好ましく、30μm以上、120μm以下であることがより好ましい。
巻取紙の坪量は、特段制限されず、通常20gsm以上、100gsm以下であり、22gsm以上、95gsm以下であることが好ましく、23gsm以上、90gsm以下であることがより好ましい。
また、巻取紙は、コーティングされていても、されていなくともよいが、強度や構造剛性以外の機能を付与できる観点からは、所望の材料でコーティングされることが好ましい。
冷却セグメント12は、たばこロッド部とフィルターセグメントとに隣接して挟持され、通常、円筒等の周方向の断面が中空(空洞)となるキャビティが設けられた棒状の部材である。
冷却セグメント12には、その周方向に、かつ、同心状に開孔V(本技術分野では「ベンチレーションフィルター(Vf)」とも称する。)が設けられていてよい。
たばこロッド部にエアロゾル基材が用いられる場合、たばこロッドが加熱されることで生じるエアロゾル基材とたばこ香味成分とを含む蒸気が、外部からの空気と接触して温度が低下することで液化し、エアロゾルが生成されることを促進させることができる。
また、同心円状に存在する開孔Vを1つの開孔群として扱った場合、開孔群は1つであってもよく、また、2つ以上であってもよい。開孔群が2つ以上存在する場合、加熱により生成される成分のデリバリー量向上の観点から、冷却セグメントとフィルターセグメントとの境界から、冷却セグメント側の方向の4mm未満の領域には開孔群を設けないことが好ましい。
また、非燃焼加熱式たばこ10が、たばこロッド部11、冷却セグメント12及びフィルターセグメント13がチップペーパー15で巻装されてなる態様である場合、チップペーパー15には、冷却セグメント12に設けられた開孔Vの直上の位置に開孔が設けられていることが好ましい。このような非燃焼加熱式たばこ10を作製する場合、開孔Vと重なるような開孔を設けたチップペーパー15を準備して巻装してもよいが、製造容易性の観点から、開孔Vを有さない冷却セグメント12を用いて非燃焼加熱式たばこ10を作製した後、冷却セグメント12及びチップペーパー15を同時に貫通する孔を開けることが好ましい。
開孔Vが存在する領域は、加熱により生成される成分のデリバリー量を向上させる観点から、非燃焼加熱式たばこの吸口端から冷却セグメント側の方向の22mm以上の領域であることが好ましく、23.5mm以上の領域であることが好ましく、24mm以上の領域であることが好ましく、25mm以上の領域であることがより好ましく、また、冷却機能を確保する観点から、38mm以下の領域であることが好ましく、36.5mm以下の領域であることがより好ましく、33mm以下の領域であることがさらに好ましい。
また、冷却セグメント12とたばこロッド部11との境界を基準に考えると、冷却セグメント12の軸方向の長さが20mm以上である場合、開孔Vが存在する領域は、冷却機能を確保する観点から、冷却セグメント12とたばこロッド部11との境界から、冷却セグメント側の方向に2mm以上の領域であることが好ましく、3.5mm以上の領域であることがより好ましく、7mm以上の領域であることがさらに好ましく、また、加熱により生成される成分のデリバリー量を向上させる観点から、18mm以下であることが好ましく、16.5mm以下の領域であることがより好ましく、15mm以下の領域であることがさらに好ましく、14.5mm以下の領域であることが特に好ましい。
冷却のための冷却シート等を冷却セグメント12に充填する場合、冷却セグメント12の全表面積は、特段制限されず、例えば、150mm2/mm以上、1000mm2/mm以下を挙げることができる。この表面積は、冷却セグメント12の通気方向の長さ(mm)当たりの表面積である。冷却セグメント12の全表面積は、200mm2/mm以上であることが好ましく、250mm2/mm以上であることがより好ましく、一方、600mm2/mm以下であることが好ましく、400mm2/mm以下であることがより好ましい。
たばこロッド部11の態様は、公知の態様であれば特段制限されないが、通常、たばこ充填物を巻紙で巻装してなる態様である。たばこ充填物は特段限定されず、たばこ刻、再構成たばこシート等公知のものを用いることができる。また、たばこ充填物は、エアロゾル基材を含んでいてもよい。エアロゾル基材は、加熱されることによりエアロゾルを生成する基材であり、グリセリン、プロピレングリコール、トリアセチン、1,3-ブタンジオール、又はこれらの混合物が例示される。
たばこ充填物中のエアロゾル基材の含有量は、特に限定されず、十分にエアロゾルを生成させるとともに、良好な香味の付与の観点から、たばこ充填物の全量に対して通常5重量%以上であり、好ましくは10重量%以上であり、また、通常50重量%以下であり、好ましくは15重量%以上、25重量%以下である。
たばこ充填物を巻紙で巻装してなるたばこロッド部11は、柱状形状を有していることが好ましく、この場合には、たばこロッド部11の底面の幅に対するたばこロッド部11の長軸方向の高さで表されるアスペクト比が1以上であることが好ましい。
底面の形状は限定されず、多角、角丸多角、円、又は楕円等であってよく、幅は当該底面が円形の場合は直径、楕円形である場合は長径、多角形または角丸多角である場合は外接円の直径または外接楕円の長径である。たばこロッド部11を構成するたばこ充填物の高さは10~70mm程度、幅は4~9mm程度であることが好ましい。
巻紙の構成は、特段制限されず、一般的な態様とすることができ、例えば、パルプが主成分のものを挙げることができる。パルプとしては、針葉樹パルプ又は広葉樹パルプなどの木材パルプで抄造される以外にも、亜麻パルプ、大麻パルプ、サイザル麻パルプ、又はエスパルトなど一般的にたばこ製品用の巻紙に使用される非木材パルプを混抄して製造して得たものでもよい。
パルプの種類としては、クラフト蒸解法、酸性・中性・アルカリ亜硫酸塩蒸解法、もしくはソーダ塩蒸解法等による化学パルプ、グランドパルプ、ケミグランドパルプ、又はサーモメカニカルパルプ等を使用できる。
上記の特性を有する巻紙の厚みは、特に限定されず、剛性、通気性、及び製紙時の調整の容易性の観点から、通常10μm以上であり、好ましくは20μm以上であり、より好ましくは30μm以上であり、また、通常100μm以下であり、好ましくは75μm以下であり、より好ましくは50μm以下である。
該非燃焼加熱式たばこの巻紙として、その形状は正方形又は長方形を挙げることができる。
たばこ充填物を巻装するため(たばこロッド部を作製するため)の巻紙として利用する場合、一辺の長さとして12~70mm程度を挙げることができ、もう一辺の長さとして15~28mm、もう一辺の好ましい長さとして22~24mm、さらに好ましい長さとして23mm程度を挙げることができる。たばこ充填物を巻紙で柱状に巻装する際は、例えばw方向の巻紙の端部とその逆側の端部を2mm程度重ね合わせて糊付けすることで、柱状の紙管の形状となり、その中にたばこ充填物が充填されている形状となる。長方形形状の巻紙のサイズは、出来上がったたばこロッド部11のサイズによって決めることができる。
チップペーパーのように、たばこロッド部11とたばこロッド部11に隣接するその他の部材を連結して巻装するものである場合、一辺の長さとして20~60mm、もう一辺の長さとして15~28mmを挙げることができる。
巻紙では、好ましい坪量の範囲(25gsm以上、45gsm以下)において、填料が15重量%以上、45重量%以下であることが好ましい。
さらに、坪量が25gsm以上、35gsm以下のとき、填料が15重量%以上、45重量%以下であることが好ましく、坪量が35gsm超、45gsm以下のとき、填料が25重量%以上、45重量%以下であることが好ましい。
填料としては、炭酸カルシウム、二酸化チタン、又はカオリン等を使用することができるが、香味や白色度を高める観点等から炭酸カルシウムを使用することが好ましい。
助剤として、紙力増強剤を添加してもよく、例えば、ポリアクリルアミド、カチオンでんぷん、酸化でんぷん、CMC、ポリアミドエピクロロヒドリン樹脂、又はポリビニルアルコール等を挙げられる。特に、酸化でんぷんについては、極少量用いることにより、通気度が向上することが知られている(特開2017-218699号公報)。
また、巻紙は、適宜コーティングされていてもよい。
チップペーパー15の構成は、特段制限されず、一般的な態様とすることができ、例えば、パルプが主成分のものを挙げることができる。パルプとしては、針葉樹パルプ又は広葉樹パルプなどの木材パルプで抄造される以外にも、亜麻パルプ、大麻パルプ、サイザル麻パルプ、又はエスパルトなど一般的にたばこ物品用の巻紙に使用される非木材パルプを混抄して製造して得たものでもよい。これらのパルプは、単独の種類で用いてもよく、複数の種類を任意の割合で組み合わせて用いてもよい。
また、チップペーパー15は一枚で構成されていてもよいが、複数枚以上で構成されていてもよい。
パルプの態様としては、クラフト蒸解法、酸性・中性・アルカリ亜硫酸塩蒸解法、又はソーダ塩蒸解法等による化学パルプ、グランドパルプ、ケミグランドパルプ、又はサーモメカニカルパルプ等を使用できる。
なお、チップペーパー15は、後述する製造方法により製造したものでも、市販品を用いてもよい。
チップペーパー15の形状は、特段制限されず、例えば、正方形または長方形とすることができる。
チップペーパー15の通気度は、特段制限されないが、通常0コレスタユニット以上、30000コレスタユニット以下であり、0コレスタユニット超、10000コレスタユニット以下であることが好ましい。通気度は、ISO 2965:2009に準拠して測定される値であり、紙の両面の差圧が1kPaのときに、1分ごとに面積1cm2を通過する気体の流量(cm3)で表される。1コレスタユニット(1コレスタ単位、1C.U.)は、1kPa下においてcm3/(min・cm2)である。
上述した非燃焼加熱式たばこの製造方法は、特段制限されず、公知の方法を適用することができ、例えば、たばこロッド部及びマウスピース部をチップペーパーで巻き上げることで製造することができる。
本発明の別の実施形態に係る電気加熱式たばこ製品(単に「電気加熱式たばこ製品」とも称する。)は、ヒーター部材と、該ヒーター部材の電力源となる電池ユニットと、該ヒーター部材を制御するための制御ユニットとを備える電気加熱型デバイスと、該ヒーター部材に接触するように挿入される、上記の非燃焼加熱式たばこと、から構成される、電気加熱式たばこ製品である。
電気加熱式たばこ製品の態様としては図2に示すような、非燃焼加熱式たばこ10の外周面を加熱する態様であってもよく、図3に示すような、非燃焼加熱式たばこ10におけるたばこロッド部11の内部から加熱する態様であってもよい。なお、図2及び図3に示す電気加熱式デバイス20には空気導入孔が設けられているが、ここでは図示しない。以下、図3を用いて電気加熱式たばこ製品30を説明する。なお、図2及び3における非燃焼加熱式たばこ10について、図2及び3に示す各構成を表す符号は一部省略する。
電気加熱式たばこ製品30は、電気加熱式デバイス20の内部に配置された、ヒーター部材21に、上記で説明した非燃焼加熱式たばこ10が接触するように挿入されて使用される。
電気加熱式デバイス20は、例えば樹脂性の躯体24の内部に、電池ユニット22と制御ユニット23とを有する。
非燃焼加熱式たばこ10を電気加熱式デバイス20に挿入すると、たばこロッド部11の外周面が電気加熱式デバイス20のヒーター部材21と接触し、やがてたばこロッド部11の外周面の全部とチップペーパーの外周面の一部がヒーター部材21に接触する。
電気加熱式デバイス20のヒーター部材21は、制御ユニット23による制御により発熱する。その熱が非燃焼加熱式たばこ10のたばこロッド部11に伝わることで、たばこロッド部11のたばこ充填物に含まれるエアロゾル基材や香味成分等が揮発する。
図2に示すような、非燃焼加熱式たばこ10の外周面を加熱する態様である場合、上記のシート状ヒーター、平板状ヒーター、筒状ヒーターを用いることができる。一方で、図3に示すような、非燃焼加熱式たばこ10におけるたばこロッド部11の内部から加熱する態様である場合は、上記の平板状ヒーターや柱状ヒーター、錐状ヒーターを用いることができる。
ヒーター部材21の長軸方向の長さは、たばこロッド部11の長軸方向の長さをLmmとしたときに、L±5.0mmの範囲内とすることができる。ヒーター部材21の長軸方向の長さは、たばこロッド部11に十分に熱を伝え、たばこ充填物に含まれるエアロゾル基材や香味成分等を十分に揮発させる、すなわちエアロゾルデリバリーの観点から、Lmm以上であることが好ましく、香味等へ不所望な影響を及ぼす成分の発生を抑制する観点からL+0.5mm以下、L+1.0mm以下、L+1.5mm以下、L+2.0mm以下、L+2.5mm以下、L+3.0mm以下、L+3.5mm以下、L+4.0mm以下、L+4.5mm以下又はL+5.0mm以下であることが好ましい。
上記X(℃)は、加熱により生成される成分等のデリバリー量の観点から、80℃以上400℃以下であることが好ましい。具体的には、80℃、90℃、100℃、110℃、120℃、130℃、140℃、150℃、160℃、170℃、180℃、190℃、200℃、210℃、220℃、230℃、240℃、250℃、260℃、270℃、280℃、290℃、300℃、310℃、320℃、330℃、340℃、350℃、360℃、370℃、380℃、390℃、400℃とすることができる。
ヒーター部材21による加熱により、たばこロッド部11から生じるエアロゾル基材由来の成分や香味成分由来の成分等を含む蒸気は、冷却セグメント12やフィルターセグメント13等から構成されるマウスピース部14を通して使用者の口腔内に到達する。
[実施例1]
たばこ充填物として、グリセリン 15g/100g、およびプロピレングリコール 4g/100gをシートたばこの刻みに混合したものを準備した。高速巻き上げ機を用い、巻紙(日本製紙パピリア製、坪量35g/m2、厚み52μm)でたばこ充填物を巻き上げた。
1本あたりの刻み重量は0.8g、巻円周は22mm、巻き長さは68mmとした。
巻き上げたたばこロッド部は水準毎に200本ずつプラスチックの密閉容器に入れて保管した。
保管したたばこロッド部を長さ20mmに切断した。その後、たばこロッド部と、長さ20mmの紙管と、長さ12mmの貫通孔(直径4.5mm)を有したセンターホール、及び長さ8mmの周方向断面がY形状の酢酸セルロース繊維(単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000)から構成されるフィルター濾材(密度:0.122g/cm3、圧縮変化率P(以下「硬さ」と称する。):88%)とを、上記で準備したチップペーパーで巻装することで、開孔を有しない非燃焼加熱式たばこを作製した後、紙管とセンターホールフィルターとの境界から、紙管側の方向の5.5mm(非燃焼加熱式たばこの吸口端から25.5mm)の位置に、紙管の周方向に同心状に、かつ、チップペーパーと紙管とをともに貫通するように17個の孔を開けて開孔を設け、実施例1の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、1.35mmH2O/mmであった。
なお、上述した式(1)で表される上記のフィルター濾材の圧縮変化率P(硬さ)は、Sodim SAS社製のSODIM-H Hardness module等を用いて測定した。これは、以下の全ての実施例及び比較例で同様である。
単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3)から、単繊維デニール(g/9000m):5.9、総繊維デニール(g/9000m):35000のフィルター濾材(密度0.143g/cm3、硬さ:87%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、比較例1の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、2.62mmH2O/mmであった。
メンソールを含む香料カプセル(直径3.5mmの球形状である。他の実施例及び比較例における香料カプセルも同様。)をフィルター濾材の内部に配置し、センターホールの長さを12mmから8mmに、フィルター濾材の長さを8mmから12mmに変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例2の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの密度(香料カプセルを除いた状態の密度)、硬さ、及び長軸方向の通気抵抗は、それぞれ0.122g/cm3、88%、1.93mmH2O/mmであった。なお、フィルターセグメントに係るパラメータは、香料カプセルを破砕せずに評価を行った。これは、香料カプセルを用いた他の実施例及び比較例でも同様である。
単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3)から、単繊維デニール(g/9000m):8、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.119g/cm3、硬さ:89%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例3の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、1.69mmH2O/mmであった。
メンソールを含む香料カプセルをフィルター濾材の内部に配置し、センターホールの長さを12mmから8mmに、フィルター濾材の長さを8mmから12mmに変更し、単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3、硬さ:88%)から、単繊維デニール(g/9000m):8、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.123g/cm3、硬さ:91%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例4の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、2.76mmH2O/mmであった。
センターホールの長さを12mmから6mmに、フィルター濾材の長さを8mmから14mmに変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例5の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの密度、硬さ、及び長軸方向の通気抵抗は、それぞれ0.129g/cm3、90%、1.58mmH2O/mmであった。
センターホールの長さを12mmから6mmに、フィルター濾材の長さを8mmから14mmに変更し、単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3、硬さ:88%)から、単繊維デニール(g/9000m):8、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.119g/cm3、硬さ:89%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例6の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、1.69mmH2O/mmであった。
メンソールを含む香料カプセルをフィルター濾材の内部に配置し、かつ、フィルター濾材にメンソール 6mg/12mmを添加し、センターホールの長さを12mmから8mmに、フィルター濾材の長さを8mmから12mmに変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、実施例7の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの密度(香料カプセルを除いた状態の密度)、硬さ、及び長軸方向の通気抵抗は、それぞれ0.122g/cm3、91%、2.48mmH2O/mmであった。
メンソールを含む香料カプセルをフィルター濾材の内部に配置し、かつ、フィルター濾材にメンソール 6mg/12mmを添加し、センターホールの長さを12mmから8mmに、フィルター濾材の長さを8mmから12mmに変更し、単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3、硬さ:88%)から、単繊維デニール(g/9000m):5.9、総繊維デニール(g/9000m):35000のフィルター濾材(密度(香料カプセルを除いた状態の密度):0.152g/cm3、硬さ:94%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、比較例2の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、それぞれ6.23mmH2O/mmであった。
単繊維デニール(g/9000m):12、総繊維デニール(g/9000m):28000のフィルター濾材(密度:0.122g/cm3)から、単繊維デニール(g/9000m):20、総繊維デニール(g/9000m):25000のフィルター濾材(密度0.113g/cm3、硬さ:85%)に変更したこと以外は、実施例1の非燃焼加熱式たばこと同様の方法により、比較例3の非燃焼加熱式たばこを作製した。該非燃焼加熱式たばこのフィルターセグメントの長軸方向の通気抵抗は、0.80mmH2O/mmであった。比較例3の非燃焼加熱式たばこは、十分な硬さが得られなかったため、後述のデリバリー量の評価は行わなかった。
実施例1~7及び比較例1~3で作製した各非燃焼加熱式たばこを喫煙試験に供し、加熱により生成される成分のデリバリー量を評価した。
喫煙試験は、Canadian Intense Smoking(CIR)を参考に下記の条件で行った。
外周加熱を行う電気加熱式デバイスを使用し、非燃焼加熱式たばこを挿入した後に、ヒーター温度を21秒間以内で295℃まで昇温し、5秒間以内で260℃まで降温し、評価終了まで(約330秒間)260℃で維持した。この後、喫煙試験はBorgwaldt社製1本がけ自動喫煙機を用いて、流量55cc/2秒、喫煙間隔30秒の条件で自動喫煙を行った。この際、冷却セグメントに施された開孔が、非燃焼加熱式たばこと電気加熱式デバイスとが接触する領域の吸口端側の端部から25.5mmとなるようにした。喫煙試験で発生した主流煙をケンブリッジパッドに捕集し、実施例1~6及び比較例1についてはパフ動作を12回、実施例7及び8並びに比較例2及び3についてはパフ動作10回行なった後にケンブリッジパッドを取り出し、10mlのエタノールにて抽出し、GC-MSを用いて各パフ動作で採取した主流煙中の各成分の量を測定した。
実施例1~9及び比較例1における非燃焼加熱式たばこにおいて、上記の測定から得られた主流煙中の成分量の指標として、ニコチン及びグリセリンの各成分の量を下記の表2及び3、並びに図6~9に示す。具体的に、図6には実施例1及び3、並びに比較例1の結果(カプセルなし、メンソールなし、センターホールの長さ:フィルターセグメントの長さ=12:8の条件における繊維デニールの影響の検討)を示し、図7には実施例7及び比較例2の結果(カプセルあり、メンソールあり、センターホールの長さ:フィルターセグメントの長さ=8:12の条件における繊維デニールの影響の検討)を示し、図8には実施例2及び4の結果(カプセルあり、メンソールなし、センターホールの長さ:フィルターセグメントの長さ=12:8の条件における繊維デニールの影響の検討)を示し、また図9には実施例5及び6の結果(カプセルなし、メンソールなし、センターホールの長さ:フィルターセグメントの長さ=6:14の条件における単繊維デニールの影響の検討)を示す。なお、カプセル添加を行った実施例及び比較例については、香料カプセルを破砕した後に上記の評価を行った。
11 たばこロッド部
12 冷却セグメント
13 フィルターセグメント
14 マウスピース部
15 チップペーパー
V 開孔
20 電気加熱式デバイス
21 ヒーター部材
22 電池ユニット
23 制御ユニット
24 躯体
30 電気加熱式たばこ製品
Claims (7)
- たばこロッド部と、マウスピース部とを備える棒状の非燃焼加熱式たばこであって、
前記マウスピース部が、フィルター濾材を有するフィルターセグメントを備え、
前記フィルター濾材が、周方向断面がY形状であり、かつ、単繊維デニールが8以上、12以下である繊維から構成される、非燃焼加熱式たばこ。 - 前記フィルター濾材の密度が、0.09g/cm3以上、0.14g/cm3以下である、請求項1に記載の非燃焼加熱式たばこ。
- 下記の式(1)で表されるフィルター濾材の圧縮変化率Pが、88%以上、95%以下である、請求項1又は2に記載の非燃焼加熱式たばこ。
P=(D1×100)/D2 (1)
P(%):圧縮変化率
D1(mm):フィルター濾材が通気方向に垂直な方向に変形するように、長軸方向の単位長さ当たりの圧縮荷重3N/mm、圧縮時間10秒の条件でフィルター濾材を圧縮した後の圧縮方向のフィルター濾材の直径
D2(mm):圧縮前のフィルター濾材の平均直径 - 前記フィルター濾材の長軸方向の長さが、5mm以上、20mm以下である、請求項1~3のいずれか1項に記載の非燃焼加熱式たばこ。
- 前記フィルターセグメントの長軸方向の通気抵抗が、1.0mmH2O/mm以上、4.0mmH2O/mm以下である、請求項1~4のいずれか1項に記載の非燃焼加熱式たばこ。
- 前記フィルター濾材の内部に香料カプセルが配置される、請求項1~5のいずれか1項に記載の非燃焼加熱式たばこ。
- ヒーター部材と、該ヒーター部材の電力源となる電池ユニットと、該ヒーター部材を制御するための制御ユニットとを備える電気加熱型デバイスと、該ヒーター部材に接触するように挿入される、請求項1~6のいずれか1項に記載の非燃焼加熱式たばこと、から構成される、電気加熱式たばこ製品。
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Country | Link |
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US (1) | US20240049776A1 (ja) |
EP (1) | EP4331395A1 (ja) |
JP (1) | JPWO2022230465A1 (ja) |
KR (1) | KR20230167404A (ja) |
CN (1) | CN117897061A (ja) |
WO (1) | WO2022230465A1 (ja) |
Citations (7)
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US4869275A (en) * | 1987-02-24 | 1989-09-26 | American Filtrona Corporation | Ultra-high filtration filter |
WO2008146548A1 (ja) | 2007-05-28 | 2008-12-04 | Japan Tobacco Inc. | シガレット |
WO2011118040A1 (ja) | 2010-03-26 | 2011-09-29 | 日本たばこ産業株式会社 | 揮発性香料デリバリー量を高めたシガレット |
WO2013067511A2 (en) | 2011-11-03 | 2013-05-10 | Celanese Acetate Llc | Products of high denier per filament and law total denier tow bands |
JP2015530107A (ja) * | 2012-09-28 | 2015-10-15 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | 輪郭形成フィルタ部分を有する喫煙物品 |
JP2017218699A (ja) | 2016-06-09 | 2017-12-14 | 日本製紙パピリア株式会社 | 喫煙物品用巻紙 |
CN111757679A (zh) * | 2018-11-23 | 2020-10-09 | 韩国烟草人参公社 | 气溶胶生成装置用卷烟以及使用该卷烟的气溶胶生成装置 |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2008146548A (ja) | 2006-12-13 | 2008-06-26 | Nec Access Technica Ltd | 電子装置、fpgaのバージョン確認方法 |
JP2011118040A (ja) | 2009-12-01 | 2011-06-16 | Oki Data Corp | 画像形成ユニット及び画像形成装置 |
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2022
- 2022-03-23 EP EP22795385.8A patent/EP4331395A1/en active Pending
- 2022-03-23 WO PCT/JP2022/013607 patent/WO2022230465A1/ja active Application Filing
- 2022-03-23 CN CN202280031762.0A patent/CN117897061A/zh active Pending
- 2022-03-23 KR KR1020237038181A patent/KR20230167404A/ko unknown
- 2022-03-23 JP JP2023517157A patent/JPWO2022230465A1/ja active Pending
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2023
- 2023-10-27 US US18/496,310 patent/US20240049776A1/en active Pending
Patent Citations (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4869275A (en) * | 1987-02-24 | 1989-09-26 | American Filtrona Corporation | Ultra-high filtration filter |
WO2008146548A1 (ja) | 2007-05-28 | 2008-12-04 | Japan Tobacco Inc. | シガレット |
WO2011118040A1 (ja) | 2010-03-26 | 2011-09-29 | 日本たばこ産業株式会社 | 揮発性香料デリバリー量を高めたシガレット |
WO2013067511A2 (en) | 2011-11-03 | 2013-05-10 | Celanese Acetate Llc | Products of high denier per filament and law total denier tow bands |
JP2015530107A (ja) * | 2012-09-28 | 2015-10-15 | フィリップ・モーリス・プロダクツ・ソシエテ・アノニム | 輪郭形成フィルタ部分を有する喫煙物品 |
JP2017218699A (ja) | 2016-06-09 | 2017-12-14 | 日本製紙パピリア株式会社 | 喫煙物品用巻紙 |
CN111757679A (zh) * | 2018-11-23 | 2020-10-09 | 韩国烟草人参公社 | 气溶胶生成装置用卷烟以及使用该卷烟的气溶胶生成装置 |
Also Published As
Publication number | Publication date |
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CN117897061A (zh) | 2024-04-16 |
EP4331395A1 (en) | 2024-03-06 |
KR20230167404A (ko) | 2023-12-08 |
JPWO2022230465A1 (ja) | 2022-11-03 |
US20240049776A1 (en) | 2024-02-15 |
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