WO2020234915A1 - 香味吸引器用のたばこロッド - Google Patents
香味吸引器用のたばこロッド Download PDFInfo
- Publication number
- WO2020234915A1 WO2020234915A1 PCT/JP2019/019656 JP2019019656W WO2020234915A1 WO 2020234915 A1 WO2020234915 A1 WO 2020234915A1 JP 2019019656 W JP2019019656 W JP 2019019656W WO 2020234915 A1 WO2020234915 A1 WO 2020234915A1
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- WIPO (PCT)
- Prior art keywords
- flavor
- tobacco rod
- heating type
- source
- tobacco
- Prior art date
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Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
- A24B3/00—Preparing tobacco in the factory
- A24B3/14—Forming reconstituted tobacco products, e.g. wrapper materials, sheets, imitation leaves, rods, cakes; Forms of such products
-
- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
- A24F47/00—Smokers' requisites not otherwise provided for
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24C—MACHINES FOR MAKING CIGARS OR CIGARETTES
- A24C5/00—Making cigarettes; Making tipping materials for, or attaching filters or mouthpieces to, cigars or cigarettes
- A24C5/01—Making cigarettes for simulated smoking devices
-
- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/18—Selection of materials, other than tobacco, suitable for smoking
-
- 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
-
- 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
- A24F40/20—Devices using solid inhalable precursors
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/20—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of a vibrating fluid
Definitions
- the present invention relates to a tobacco rod for a flavor aspirator, more specifically a tobacco rod for a direct heating type or an indirect heating type flavor aspirator.
- Patent Document 1 describes a method for determining a non-defective product and a defective product having a step of image-analyzing the cross-sectional porosity and the cross-sectional porosity distribution of a tobacco rod used by directly heating, and an aerosol-forming substrate obtained through the method.
- Patent Document 2 discloses a heated smoking article comprising a gathered and crimped tobacco material sheet.
- the flavor source of the direct heating type flavor aspirator is heated at a lower temperature than the conventional combustion type cigarette, and the flavor source of the indirect heating type flavor aspirator is not directly heated. Therefore, the direct heating type flavor aspirator and the indirect heating type flavor aspirator do not have high volatilization characteristics of the flavor component as compared with the conventional combustion type cigarette. In view of such circumstances, it is an object of the present invention to provide a tobacco rod for a direct heating type or indirect heating type flavor aspirator having high volatilization efficiency of flavor components.
- Patent Document 1 proposes to control the cross-sectional porosity as a manufacturing parameter, but does not mention the relationship between the cross-sectional porosity and the volatilization of flavor components. Therefore, as a result of diligent studies, the inventors have found that the above problem can be solved by setting the ratio of voids having a specific size or more to a specific value. That is, the above problem is solved by the following invention.
- (Aspect 1) It is provided with a tubular container and a flavor source containing tobacco filled in the tubular container. The flavor source is filled so as to form voids in the longitudinal direction.
- T is the area of the total voids in the cross section orthogonal to the longitudinal direction of the tubular container of the flavor source
- S is the total area of voids having an area of 800,000 ⁇ m 2 or more in the cross section
- Tobacco rod for flavor aspirators (Aspect 2) The tobacco rod according to aspect 1 for a direct heating type or indirect heating type flavor aspirator. (Aspect 3) The tobacco rod according to aspect 2, wherein the flavor source comprises a surface-processed flavor generating sheet. (Aspect 4) The tobacco rod according to aspect 2 or 3, wherein the side surface of the tubular container is made of a material selected from the group consisting of paper, resin, metal, and a combination thereof.
- a direct heating type or indirect heating type flavor aspirator comprising the tobacco rod according to any one of aspects 1 to 8.
- the flavor aspirator according to aspect 9 further comprising an aerosol source for generating an aerosol on the upstream side of the tobacco rod.
- An ultrasonic vibration type flavor aspirator comprising the tobacco rod according to the first aspect.
- X to Y includes X and Y which are fractional values thereof.
- FIG. 1 shows an outline of a tobacco rod.
- FIG. 1 (1) is a perspective view of a tobacco rod
- FIG. 1 (2) is a cross-sectional view taken along the line AA.
- 1 is a tobacco rod
- 10 is a flavor source
- 12 is a tubular container.
- the cross-sectional shape of the tobacco rod 1 is not limited, and may be a circle, an ellipse, a polygon, or a polygon with rounded corners.
- the size of the cross-sectional shape of the tobacco rod 1 is not limited, but its maximum length (hereinafter, also referred to as “width”) is preferably 1 mm or more, more preferably 3 mm or more.
- the upper limit is preferably 9 mm or less, more preferably 7 mm or less.
- the length of the tobacco rod 1 is preferably 40 mm or less, more preferably 25 mm or less.
- the lower limit is preferably 1 mm or more, more preferably 5 mm or more.
- the tobacco rod 1 includes a flavor source 10 containing tobacco.
- the tobacco-containing flavor source (hereinafter, also simply referred to as “flavor source”) 10 forms a void through which the aerosol flows in the longitudinal direction. Therefore, the flavor source 10 containing tobacco is preferably a flavor generating sheet.
- the flavor generating sheet include a sheet obtained by supporting a component capable of generating flavor on a sheet base material or a sheet composed of a material that generates flavor.
- the component that can generate a flavor include a flavor component contained in a tobacco raw material, a flavor component such as menthol, and the like.
- the sheet base material include tobacco materials such as compressed tobacco pellets and tobacco powder, and tobacco materials are preferable. That is, the flavor generating sheet may contain either a sheet base material or a component capable of generating flavor from a tobacco-derived material, and in one embodiment, the base material sheet of the tobacco material may generate flavor as required. Tobacco sheets carrying the components are preferred.
- FIG. 2 shows a cross-sectional view of a tobacco rod 1 in which a flavor generating sheet 10s is folded as a flavor source 10 and filled in a tubular container 12.
- the number of flavor generating sheets to be filled is not limited and may be 1 to 3, but 1 is preferable from the viewpoint of ease of production.
- 14 is a void having an area of 800,000 ⁇ m 2 or more.
- the tobacco rod 1 of the present invention satisfies the following relationship in a cross section orthogonal to the longitudinal direction thereof.
- T is the area of all voids in the cross section orthogonal to the longitudinal direction of the tubular container of the flavor source, that is, the total area of voids.
- S is the total area of voids having an area of 800,000 ⁇ m 2 or more in the cross section.
- S / T will be referred to as V below. Nicotine is an example of a substance for comparing the volatilization properties of flavor components.
- V is defined by the total area of the voids 14 / the area of the total voids. When V is in this range, the volatilization characteristics of the flavor component become good. From this point of view, V is preferably 16% or less, more preferably 12% or less. The lower limit of V is preferably 0%, but may be 5% or more in manufacturing. Since the tobacco rod of the present invention has a gap communicating with each other in the longitudinal direction, the V measured at one place can be the V of the tobacco rod.
- the preferable lower limit of the ratio of T in the inner cross section of the tobacco rod 1 is 10% or more, 20% or more, 30% or more, 35% or more, or 40% or more, and the preferable upper limit thereof is 40% or less and 45%. Below, it is 50% or less, or 60% or less.
- V is obtained by observing an image of the cross section of the tobacco rod 1. Specifically, the porosity can be obtained through the following steps.
- Step 1 Obtain a cross-sectional image of the tobacco rod 1.
- Step 2 Analyze the image and extract voids from the difference in brightness to obtain the area T of all voids.
- Step 3 800,000 ⁇ m 2 from the voids. Extract the voids having the above area and obtain the total area S.
- Known analysis software can be used for image analysis.
- the filling amount of the flavor source 10 is appropriately adjusted in order to achieve the V, and in one embodiment, it is preferably 40 to 90% by volume with respect to the volume of the tubular container 12. More preferable lower limit values are 50% by volume or more, 55% by volume or more, or 60% by volume or more, and more preferable upper limit values are 60% by volume or less, 65% by volume or less, 70% by volume or less, 80% by volume or less. , Or 90% by volume or less.
- the flavor generating sheet 10s is used as the flavor source 10
- it is preferable that at least one surface of the sheet is surface-processed.
- the surface processing refers to a process of forming a plurality of irregularities on the front surface or the back surface of the flavor generating sheet 10s.
- the surface processing is not particularly limited, and crimping processing, embossing processing, debossing processing, half-cut processing and the like can be performed.
- the crimping process is a process of forming wrinkles on the sheet. For example, by passing the flavor generating sheet 10s between a pair of rollers having a plurality of convex portions on the surface, wrinkles extending perpendicular to the sheet transport direction are provided on both the front surface and the back surface of the flavor generating sheet 10s to perform crimping. Can be applied.
- the convex portion provided in this way extends orthogonally to the sheet transport direction.
- the pitch between the vertices of the convex portions provided on the roller is preferably 0.5 to 2.0 mm.
- the apex angle is preferably 30 to 70 °.
- Embossing and debossing is the process of pressing a convex processing tool against the sheet to form recesses on one or both sides of the sheet, and half-cutting is the process of not cutting the sheet on one or both sides of the sheet. This is a process of providing a notch with a depth of, preferably less than half the thickness of the sheet.
- FIG. 3 (1) shows an outline of the embodiment.
- 10r is a strip-shaped flavor generating sheet.
- the strip-shaped flavor generating sheet 10r is filled so that its longitudinal direction is substantially parallel to the longitudinal direction of the tubular container 12.
- a cross-sectional view of the tobacco rod 1 in this embodiment is shown in FIG. 3 (2). In this embodiment as well, V in the above range is achieved.
- the surface treatment may be applied to the strip-shaped flavor generating sheet 10r.
- a production method disclosed in Tokushu Kosho 62-272962 is known.
- a reconstructed tobacco sheet instead of the recycled tobacco material as the sheet-like material, and a papermaking sheet, a slurry sheet, or a cast sheet is used as the reconstructed tobacco sheet.
- the strip of the sheet-like material drawn from the bobbin may be subjected to the surface treatment described in the previous paragraph before being passed through the cutting means.
- the flavor generating sheet 10s can be prepared by a known method.
- the flavor generating sheet 10s can be prepared by a known method such as papermaking, slurry, rolling, or the like. Specifically, in the case of papermaking, it can be manufactured by a method including the following steps. 1) The dried leaf tobacco raw material is coarsely crushed, extracted with water, and separated into a water extract and a residue. 2) The water extract is dried under reduced pressure and concentrated. 3) Pulp is added to the residue, fiberized with a refiner, and then papermaking is performed. 4) Add a concentrated solution of water extract to the paper-made sheet to make a dried tobacco sheet.
- the shape of the flavor generating sheet 10s is not limited, but the shape of the main surface of the sheet is preferably quadrangular.
- the thickness is not limited, but 200 to 600 ⁇ m is preferable in consideration of high-efficiency heat exchange, the strength of the flavor generating segment, and the like.
- one side A of the flavor generating sheet 10s has the same length in the longitudinal direction as the tubular housing body 12.
- the length of the other side B of the flavor generating sheet 10s is appropriately adjusted, but in one embodiment, it is 1 to 10 times the length of A.
- the strip-shaped flavor generating sheet 10r can be prepared by cutting the flavor generating sheet 10s.
- the length a in the longitudinal direction of the strip-shaped flavor generating sheet 10r is preferably the same as the length in the longitudinal direction of the tubular container 12.
- the length b in the lateral direction of the strip-shaped flavor generating sheet 10r is appropriately adjusted, but in one embodiment, it is about 0.4 to 3.0 mm, preferably 0.6 to 2.0 mm, and more preferably 0.8. It is ⁇ 1.5 mm.
- Aerosol source The flavor source 10 may contain an aerosol source.
- the aerosol source include polyols such as glycerin, propylene glycol, and 1,3-butanediol.
- the amount of the aerosol source added is preferably 5 to 50% by weight, more preferably 10 to 30% by weight, based on the dry weight of the flavor source 10.
- the aerosol source contained in the flavor source 10 is also referred to as an "internal aerosol source".
- the tobacco rod 1 containing the internal aerosol source is suitable for a direct heating type flavor aspirator. As will be described later, it is preferable that the flavor source 10 for the indirect heating type flavor aspirator does not contain an internal aerosol source.
- the tubular housing 12 is made of a known material.
- the side surface of the tubular enclosure 12 is composed of a material selected from the group consisting of paper, resin, metal, and combinations thereof.
- the tubular container 12 is preferably made of resin from the viewpoint of handleability. Examples of the resin include polypropylene, polyethylene terephthalate, polyethylene, ABS, polylactic acid resin and the like.
- the thickness of the side surface portion is not limited, but is preferably about 0.4 to 1.0 mm, more preferably about 0.6 to 0.8 mm, and even more preferably about 0.7 mm.
- the side surface of the tubular container 12 is a laminate of a resin film such as polyethylene film, polyvinyl alcohol, or polysaccharide and paper, alginic acid, carrageenan, carboxymethyl cellulose, xanthan gum, guar gum, starch, etc.
- Thin layer and paper laminate made by applying a solution of polysaccharide / mucopolysaccharide such as mannose, glucuronic acid, locust bean gum, gellan gum, starch, oxidized starch, processed starch, hyaluronic acid, chondroitin phosphate, etc., aluminum foil, etc. It is preferably composed of a laminate of metal foil and paper, thick paper, or the like.
- the number of layers of the laminate is not limited, but a three-layer structure of a paper layer / a resin layer (or a metal foil layer or a polysaccharide / mucopolysaccharide layer) / a paper layer is preferable. Since the paper layer of the laminate is exposed, it can be sufficiently adhered using vinyl acetate glue or a hot melt adhesive at the time of winding. Sufficient peel strength (22.4 g to 28.0 g) can be achieved, and adhesive peeling after winding can be reduced.
- the paper Nippon Paper Papiria made Sandorami # 85 / S52 (thickness 220 .mu.m, basis weight 85 / 52gsm, stiffness 145cm 3/100) and the like.
- the thickness of the resin layer is preferably 12 to 70 ⁇ m, more preferably 17 to 20 ⁇ m.
- the air permeability is preferably less than 50 cholesterol units, preferably less than 15 cholesterol units, and more preferably less than 1 cholesterol unit.
- the thickness is preferably 100 to 150 ⁇ m, and the basis weight is preferably about 80 to 150 gsm.
- the cardboard include those composed of 87.5% by weight of kraft pulp, 5% by weight of an inorganic filler, 0.5% by weight of starch, and 7% by weight of water. Such cardboard can be obtained, for example, from Julius Glatz GmbH.
- the air permeability of the side surface of the tubular container 12 is preferably less than 1 cholesta unit, more preferably 0 cholesta unit.
- the cholesterol unit is an air passage flow rate (cm 3 ) in 1 minute per 1 cm 2 under 100 mmH 2 O conditions. It can be measured using the air permeability meter PPM100 manufactured by FILTRONA, USA.
- One end or both ends of the tubular housing 12 may be open, or may be closed while ensuring breathability. When the ends are closed, the ends are preferably made of the materials described above. Further, the dimensions of the tubular housing body 12 are appropriately adjusted so that the above-mentioned dimensions of the tobacco rod 1 can be achieved.
- Direct heating type or indirect heating type flavor aspirator A direct heating type flavor aspirator is an article that produces a flavor by heating a flavor source 10.
- FIG. 4 shows an aspect of a direct heating type flavor aspirator.
- 100 is a direct heating type flavor aspirator
- 1 is a cigarette rod
- 2 is a mouthpiece
- 20 is a cooling unit
- 22 is a filter
- 3 is a wrapper.
- the size of the mouthpiece is not limited, but it is preferably the same width as the tobacco rod 1, and the length is preferably 26 to 50 mm.
- the filter 22 is preferably made of a material usually used in the art, such as a cellulose acetate filter.
- the length of the filter 22 is preferably 12 to 60% of the total length of the mouthpiece.
- the cooling unit 20 has a function of cooling the aerosol.
- the cooling unit 20 may be hollow or may have a cooling element such as a polylactic acid film. Ventilation can also be provided in the cooling unit 20.
- the length of the cooling member 20 is preferably 8 to 77% of the total length of the mouthpiece 2.
- the wrapper 3 includes the above-mentioned resin film such as polyethylene film and paper laminate, thin film and paper laminate obtained by drying a solution of polysaccharide / mucopolysaccharide, metal foil such as aluminum foil and paper laminate, or Thick paper or the like can be used. That is, as shown in FIG. 4 (1), the length of the tubular housing body 12 can be extended to serve as the wrapper 3. Further, as another embodiment, as shown in FIG. 4 (2), the wrapper 3 may be provided on the outside of the tubular container 12. In this aspect, the tubular container 12 is preferably made of the above-mentioned resin or cardboard.
- the direct heating type flavor aspirator is heated by a known heater.
- the heater preferably can electrically heat the tobacco rod 1 to 200 to 400 ° C.
- the direct heating type flavor aspirator includes an internal heating type in which a heater is inserted into the tobacco rod 1 and an external heating type in which a heater is arranged on the outer periphery of the tobacco rod 1. In the present invention, the latter is preferable in order to secure the V of the tobacco rod 1.
- the combination of a direct heating type flavor suction device and a heater is also called a direct heating type flavor suction system.
- FIG. 5 shows an aspect of an indirect heating type flavor aspirator.
- 200 is an indirect heating type flavor aspirator
- 1 is a tobacco rod
- 3 is a wrapper
- 4 is an atomizing part
- 5 is an external aerosol source
- 7 is an outer frame body.
- the external aerosol source 5 is arranged upstream of the tobacco rod 1 and the atomizing section 4 generates an aerosol.
- the atomizing unit 4 can electrically heat the external aerosol source 5 to about 200 to 300 ° C.
- the heating generates an aerosol, which is introduced into the tobacco rod 1 and passes through the flavor source in an atmosphere of 30 to 40 ° C., carries the flavor component, and is sucked by the user.
- the combination of an indirect heating type flavor suction device and a power source is also called an indirect heating type flavor suction system.
- Known indirect heating flavor aspirators and indirect heating flavor aspirators are disclosed, for example, in International Publication 2016/0754749.
- FIG. 6 shows a preferred embodiment of the indirect heating type flavor suction system.
- 210 is an indirect heating type flavor suction system
- 203 is a power supply unit
- 201 is a cartridge.
- the cartridge 201 is removable from the power supply unit 203.
- the cartridge 201 includes an external aerosol source 5, an atomizing section 4, and a flow path 6.
- the tobacco rod 1 is housed in the space at the mouthpiece end of the cartridge 201.
- the tobacco rod 1 is housed in the space in the cartridge 201 to form an indirect heating type flavor aspirator 200.
- the cartridge 201 may have a filter at the mouthpiece end.
- the external aerosol source 5 can be configured by supporting the above-mentioned aerosol source on a porous body such as a fiber filling.
- the length of the external aerosol source 5 is not limited, but is preferably 10 to 25 mm.
- the power supply unit 203 includes a power source such as a battery and atomizes the aerosol source without combustion.
- outer frame 7 of the indirect heating type flavor aspirator is a resin housing.
- the side wall of the cartridge 201 corresponds to the outer frame 7.
- the tobacco rod of the present invention can also be used for an ultrasonic vibration type flavor aspirator, which is an application example of the indirect heating type flavor aspirator.
- the ultrasonic vibration type flavor aspirator is a type of flavor aspirator that employs an ultrasonic oscillator in the atomizing section and vibrates an external aerosol source to generate an aerosol.
- Examples 1 to 3 A tobacco papermaking sheet (thickness 200 ⁇ m, basis weight 71 g / m 2 , nicotine content 1.4% by weight) was treated with an alkaline aqueous solution having a pH of 9.6. Next, the sheet was surface-processed using a crimping roller. A chevron roller (60 °, 1 mm pitch) was used as the crimping roller. In this way, the flavor generation sheet was prepared. The flavor generating sheet was cut into a square shape having a side length of 21 mm and a weight of 310 mg.
- a polypropylene straw having a diameter of 8 mm, a wall thickness of 0.2 mm, and a length of 21 mm was prepared as a tubular container.
- the cut flavor generating sheet was folded into the straw and filled so as to have a cross-sectional shape as shown in FIG. 2 to obtain a tobacco rod.
- an image analyzer VHX-2000 digital microscope manufactured by KEYENCE
- an end face image of a tobacco rod test sample was taken with an objective lens magnification of 50 times and a CCD side lens magnification of 10 times. The imaging was performed twice under different conditions described later. Then, the two images were superposed as two image layers using the operation software VHX-2000 ver2.3.5.1 attached to the image analyzer.
- the first image was taken with the image focused on the end face under the illumination intensity automatically set by the operation software attached to the image analyzer.
- the second image was taken with the operation software at maximum illumination intensity (no value) while maintaining the above-mentioned focus.
- the superimposition of the first and second images was carried out by processing the images with the "2D image concatenation" function of the operation software and integrating them into one image data.
- the "automatic area measurement" function of the operation software attached to the image analyzer was applied to the integrated image data, and the threshold value was set to 35.
- V (%) S / T T: Area of total voids in cross section S: Total area of voids having an area of 800,000 ⁇ m 2 or more
- the indirect heating type flavor suction system shown in FIG. 6 was prepared with reference to the description of the international publication 2016/0754749.
- the length of the cartridge 200 was 21 mm, which is the same as that of the tobacco rod 1. 20 puffs of mechanical smoking were performed using the system. Samples were prepared in accordance with the Humidity Control and Harmonization Law for Tobacco and Tobacco Products stipulated by ISO (the International Organization for Standardization) 3402: 1999 (Non-Patent Document).
- the machine smoking method and the method of collecting the generated aerosol were in accordance with CORRESTA RECOMMENDED METHOD No. 81 “ROUTINE ANALYTICAL MACHINE FOR E-CIGARETTE AEROSO GENERATION AND COLLECTION - DEFINITIONS AND STANDARD”.
- the Cambridge filter that collected the aerosol was collected, and the amount of nicotine was measured using gas chromatography.
- the Cambridge filter is a flat circular glass fiber filter having a diameter of about 44 mm and a thickness of 1.5 mm, and is well known and widely used by those skilled in the art as a filter capable of capturing particulate matter.
- the Cambridge filter can be obtained from Nippon Cambridge Filter Co., Ltd., Borgwald Co., Ltd. (catalog number 8020 285 2) and the like. Nicotine was analyzed as a representative of the flavor components contained in the collected aerosol particulate matter (Total Particle Matter, hereinafter referred to as "TPM"), and the amount of nicotine in TPM was determined.
- TPM Total Particle Matter
- the quantification of nicotine was performed by a method commonly used by those skilled in the art. The results are shown in Table 1. Examples 2 and 3 were carried out by changing the filling amount of the sheet and the like so that the value of V became the value shown in Table 1.
- Tobacco rods were prepared and evaluated in the same manner as in Examples using the flavor generating sheet used in Examples. However, the filling amount and the folding method were adjusted so that the value of V became the value shown in Table 1. These results are shown in Table 1 and FIG.
- the tobacco rods of the examples showed higher values than the comparative examples with respect to the ratio of the flavor components contained in the particulate matter of the aerosol generated from the tobacco rods. It is clear that the tobacco rod of the present invention has excellent volatilization properties of flavor components.
- Tobacco rod 10 Tobacco-containing flavor source 10s Flavor generation sheet 10r Strip-shaped flavor generation sheet 12 Cylindrical container 14 800,000 ⁇ m 2 or more voids 100 Direct heating type flavor aspirator 2 Mouthpiece 20 Cooling part 22 Filter 3 Wrapper 200 Indirect heating type flavor aspirator 210 Indirect heating type flavor suction system 201 Cartridge 4 Atomizer 5 External aerosol source 6 Flow path 7 Outer frame 203 power supply unit
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Abstract
Description
(態様1)
筒状収容体と、当該筒状収容体内に充填されたたばこを含む香味源とを備え、
前記香味源は、長手方向に渡って空隙を形成するように充填されており、
以下の関係を満たす:
S/T≦17%
(Tは前記香味源の前記筒状収容体の長手方向に直交する断面における全空隙の面積、
Sは当該断面における80万μm2以上の面積を有する空隙の総面積である)
香味吸引器用のたばこロッド。
(態様2)
直接加熱型または間接加熱型香味吸引器用の態様1に記載のたばこロッド。
(態様3)
前記香味源が表面加工された香味発生シートを含む、態様2に記載のたばこロッド。
(態様4)
前記筒状収容体側面が、紙、樹脂、金属、およびこれらの組合せからなる群から選択される材料で構成される、態様2または3に記載のたばこロッド。
(態様5)
前記筒状収容体側面が、多層構造を有する、態様2~4のいずれかに記載のたばこロッド。
(態様6)
前記筒状収容体側面の通気度が1コレスタ単位未満である、態様2~5のいずれかに記載のたばこロッド。
(態様7)
前記香味源が複数の短冊状の香味発生シートを含み、当該シートの長手方向が前記筒状収容体の長手方向と略平行である、態様2~6のいずれかに記載のたばこロッド。
(態様8)
前記香味源が、エアロゾルを発生するエアロゾル源を含有する、態様2~7のいずれかに記載のたばこロッド。
(態様9)
態様1~8のいずれかに記載のたばこロッドを備える、直接加熱型または間接加熱型香味吸引器。
(態様10)
前記たばこロッドの上流側に、エアロゾルを発生するエアロゾル源をさらに備える、態様9に記載の香味吸引器。
(態様11)
態様1に記載のたばこロッドを備える、超音波振動型香味吸引器。
たばこロッドとは、香味を発生する柱状の部材である。たばこロッドの吸口端側を「下流」、その反対側を「上流」という。図1にたばこロッドの概要を示す。図1(1)はたばこロッドの斜視図、図1(2)は矢視A-Aにおける断面図である。図中、1はたばこロッド、10は香味源、12は筒状収容体である。たばこロッド1の断面形状は、限定されず、円、楕円、多角形、角丸多角形とすることができる。たばこロッド1の断面形状の大きさは限定されないが、その最大長さ(以下、「幅」ともいう)は好ましくは1mm以上、より好ましくは3mm以上である。その上限は、好ましくは9mm以下、より好ましくは7mm以下である。たばこロッド1の長さは、好ましくは40mm以下、より好ましくは25mm以下である。その下限は、好ましくは1mm以上、より好ましくは5mm以上である。
たばこロッド1は、たばこを含む香味源10を備える。たばこを含む香味源(以下、単に「香味源」ともいう)10は、長手方向に渡ってエアロゾルが流れる空隙を形成する。このため、たばこを含む香味源10は香味発生シートであることが好ましい。香味発生シートとしては香味を発生しうる成分をシート基材に担持させてなるシートまたは香味を発生する材料で構成されたシートが挙げられる。香味を発生しうる成分としては、例えば、たばこ原料に含まれる香喫味成分やメントール等の香料成分等が挙げられる。シート基材としては、例えば、圧縮たばこペレットやたばこ粉末等のたばこ材料等が挙げられるが、たばこ材料が好ましい。すなわち香味発生シートは、シート基材または香味を発生しうる成分のいずれかがたばこ由来の材料を含んでいればよく、一態様においてたばこ材料の基材シートに必要に応じて香味を発生しうる成分を担持したたばこシートが好ましい。
香味源10は、後述する筒状収容体12内に長手方向に渡って空隙を形成するように充填される。図2は、香味源10として香味発生シート10sを折り畳んで筒状収容体12内に充填したたばこロッド1の断面図を示す。この場合、充填される香味発生シートの枚数は限定されず、1~3枚とすることができるが、製造容易性の観点から1枚であることが好ましい。図中、14は80万μm2以上の面積を有する空隙である。本発明のたばこロッド1は、その長手方向に直交する断面において以下の関係を満たす。
S/T≦17%
Tは前記香味源の前記筒状収容体の長手方向に直交する断面における全空隙の面積、すなわち空隙の総面積である。Sは当該断面における80万μm2以上の面積を有する空隙の総面積である。便宜上、以下、S/TをVとする。香味成分の揮散特性を比較するための物質の例としてはニコチンが挙げられる。
工程1:たばこロッド1の断面像を取得する
工程2:当該像を画像解析して輝度の差から空隙を抽出し、全空隙の面積Tを求める
工程3:空隙の中から、80万μm2以上の面積を有する空隙を抽出しその合計面積Sを求める
工程4:以下の式からVを算出する。
V(%)=S/T
画像解析には公知の解析ソフトを用いることができる。
香味発生シート10sは公知の方法で調製できる。例えば、抄造、スラリー、圧延、等の公知の方法で香味発生シート10sを調製できる。具体的に抄造の場合は、以下の工程を含む方法で製造できる。1)乾燥葉たばこ原料を粗砕し、水で抽出して水抽出物と残渣に分離する。2)水抽出物を減圧乾燥して濃縮する。3)残渣にパルプを加え、リファイナで繊維化した後、抄紙する。4)抄紙したシートに水抽出物の濃縮液を添加して乾燥したばこシートとする。
香味発生シート10sの形状は限定されないがシート主面の形状が四角形であることが好ましい。厚みは限定されないが、高効率の熱交換や香味発生セグメントの強度等を考慮すると、200~600μmが好ましい。香味発生シート10sの一辺Aは、筒状収容体12の長手方向長さと同じであることが好ましい。香味発生シート10sの他方の辺Bの長さは適宜調整されるが、一態様においてAの長さの1~10倍である。
短冊状香味発生シート10rは、香味発生シート10sを裁断することで調製できる。短冊状香味発生シート10rの長手方向長さaは、筒状収容体12の長手方向長さと同じであることが好ましい。短冊状香味発生シート10rの短手方向長さbは適宜調整されるが、一態様において0.4~3.0mm程度であり、好ましくは0.6~2.0mm、より好ましくは0.8~1.5mmである。
香味源10はエアロゾル源を含んでいてもよい。エアロゾル源としてはグリセリン、プロピレングリコール、1,3-ブタンジオール等のポリオール等が挙げられる。エアロゾル源の添加量は、香味源10の乾燥重量に対して5~50重量%が好ましく、10~30重量%がより好ましい。香味源10に含まれるエアロゾル源を「内部エアロゾル源」ともいう。内部エアロゾル源を含むたばこロッド1は、直接加熱型香味吸引器に好適である。後述するように、間接加熱型香味吸引器用の香味源10は内部エアロゾル源を含まないことが好ましい。
筒状収容体12は公知の材料で構成される。例えば筒状収容体12の側面は、紙、樹脂、金属、およびこれらの組合せからなる群から選択される材料で構成される。間接加熱型香味吸引器に用いる場合、取扱い性の観点から筒状収容体12は樹脂で構成されることが好ましい。樹脂としてはポリプロピレン、ポリエチレンテレフタレート、ポリエチレン、ABS、ポリ乳酸樹脂等が挙げられる。側面部の厚さは限定されないが、0.4~1.0mm程度であることが好ましく、0.6~0.8mm程度であることがより好ましく、0.7mm程度であることがさらに好ましい。
(1)直接加熱型香味吸引器
直接加熱型香味吸引器とは香味源10を加熱することによって、香味を生成する物品である。図4は直接加熱型香味吸引器の一態様を示す。図中、100は直接加熱型香味吸引器、1はたばこロッド、2はマウスピース、20は冷却部、22はフィルタ、3はラッパーである。
間接加熱型香味吸引器とは香味源を直接は加熱せずに、その上流に配置したエアロゾル源からエアロゾルを発生させて、当該エアロゾルに香味源からの香味成分を担持させて香味を生成する物品である。図5は間接加熱型香味吸引器の一態様を示す。図中、200は間接加熱型香味吸引器、1はたばこロッド、3はラッパー、4は霧化部、5は外部エアロゾル源、7は外枠体である。外部エアロゾル源5は、たばこロッド1の上流に配置され、霧化部4によってエアロゾルを発生させる。霧化部4は電気的に外部エアロゾル源5を200~300℃程度に加熱できることが好ましい。当該加熱によってエアロゾルが発生し、当該エアロゾルはたばこロッド1内に導入されて、香味源を30~40℃の雰囲気にしながら通過し、香味成分を担持し、使用者に吸引される。間接加熱型香味吸引器と電源との組合せを間接加熱型香味吸引システムともいう。公知の間接加熱型香味吸引器および間接加熱型香味吸引システムは、例えば、国際公開2016/075749に開示されている。
たばこ抄造シート(厚さ200μm、坪量71g/m2、ニコチン量1.4重量%)にpH9.6のアルカリ水溶液を用いて処理を施した。次いで、捲縮ローラを用いて当該シートに表面加工を施した。捲縮ローラとして山形ローラ(60°、1mmピッチ)を用いた。このようにして香味発生シートを調製した。当該香味発生シートを、1辺の長さが21mmであり、重量が310mgの正方形状に裁断した。
V(%)=S/T
T:断面における全空隙の面積
S:80万μm2以上の面積を有する空隙の総面積
捲縮加工を施さない香味発生シートを用いて、実施例と同様にしてたばこロッドを調製し、評価した。ただし、Vの値が表1に示すような値となるように充填量および折り畳み方を調整した。
10 たばこを含む香味源
10s 香味発生シート
10r 短冊状香味発生シート
12 筒状収容体
14 80万μm2以上の面積を有する空隙
100 直接加熱型香味吸引器
2 マウスピース
20 冷却部
22 フィルタ
3 ラッパー
200 間接加熱型香味吸引器
210 間接加熱型香味吸引システム
201 カートリッジ
4 霧化部
5 外部エアロゾル源
6 流路
7 外枠体
203 電源ユニット
Claims (11)
- 筒状収容体と、当該筒状収容体内に充填されたたばこを含む香味源とを備え、
前記香味源は、長手方向に渡って空隙を形成するように充填されており、
以下の関係を満たす:
S/T≦17%
(Tは前記香味源の前記筒状収容体の長手方向に直交する断面における全空隙の面積、
Sは当該断面における80万μm2以上の面積を有する空隙の総面積である)
香味吸引器用のたばこロッド。 - 直接加熱型または間接加熱型香味吸引器用の請求項1に記載のたばこロッド。
- 前記香味源が表面加工された香味発生シートを含む、請求項2に記載のたばこロッド。
- 前記筒状収容体側面が、紙、樹脂、金属、およびこれらの組合せからなる群から選択される材料で構成される、請求項2または3に記載のたばこロッド。
- 前記筒状収容体側面が、多層構造を有する、請求項2~4のいずれかに記載のたばこロッド。
- 前記筒状収容体側面の通気度が1コレスタ単位未満である、請求項2~5のいずれかに記載のたばこロッド。
- 前記香味源が複数の短冊状の香味発生シートを含み、当該シートの長手方向が前記筒状収容体の長手方向と略平行である、請求項2~6のいずれかに記載のたばこロッド。
- 前記香味源が、エアロゾルを発生するエアロゾル源を含有する、請求項2~7のいずれかに記載のたばこロッド。
- 請求項1~8のいずれかに記載のたばこロッドを備える、直接加熱型または間接加熱型香味吸引器。
- 前記たばこロッドの上流側に、エアロゾルを発生するエアロゾル源をさらに備える、請求項9に記載の香味吸引器。
- 請求項1に記載のたばこロッドを備える、超音波振動型香味吸引器。
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US20220071266A1 (en) | 2022-03-10 |
EP4360474A2 (en) | 2024-05-01 |
KR102419878B1 (ko) | 2022-07-12 |
EP3970536A4 (en) | 2022-12-28 |
EP3970536A1 (en) | 2022-03-23 |
JP2022033950A (ja) | 2022-03-02 |
KR20210153143A (ko) | 2021-12-16 |
JPWO2020234915A1 (ja) | 2021-11-18 |
TW202042677A (zh) | 2020-12-01 |
JP7008878B2 (ja) | 2022-01-25 |
JP7382379B2 (ja) | 2023-11-16 |
GB2600035A (en) | 2022-04-20 |
GB2600035B (en) | 2022-09-14 |
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