WO2022230867A1 - 非燃焼加熱型香味吸引器用たばこシート、非燃焼加熱型香味吸引器、及び非燃焼加熱型香味吸引システム - Google Patents
非燃焼加熱型香味吸引器用たばこシート、非燃焼加熱型香味吸引器、及び非燃焼加熱型香味吸引システム Download PDFInfo
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- WO2022230867A1 WO2022230867A1 PCT/JP2022/018861 JP2022018861W WO2022230867A1 WO 2022230867 A1 WO2022230867 A1 WO 2022230867A1 JP 2022018861 W JP2022018861 W JP 2022018861W WO 2022230867 A1 WO2022230867 A1 WO 2022230867A1
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- tobacco
- flavor inhaler
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Images
Classifications
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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- A—HUMAN NECESSITIES
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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
- A24D1/00—Cigars; Cigarettes
- A24D1/20—Cigarettes specially adapted for simulated smoking devices
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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
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
-
- 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
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
- A24D3/064—Use of materials for tobacco smoke filters characterised by structural features of the fibers having non-circular cross-section
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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
-
- 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
-
- 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
-
- 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
- A24F7/00—Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders
- A24F7/04—Mouthpieces for pipes; Mouthpieces for cigar or cigarette holders with smoke filters
Definitions
- This embodiment relates to a tobacco sheet for a non-combustion heating flavor inhaler, a non-combustion heating flavor inhaler, and a non-combustion heating flavor inhalation system.
- a combustion-type flavor inhaler obtains flavor by burning tobacco fillings including leaf tobacco and tobacco sheets.
- Patent Literature 1 discloses a tobacco sheet used in a combustion type flavor inhaler.
- a non-combustion heating type flavor inhaler has been proposed that obtains flavor by heating a flavor source such as a tobacco sheet instead of burning it.
- the heating temperature of the non-combustion-heating flavor inhaler is lower than the combustion temperature of the combustion-type flavor inhaler, for example, about 400° C. or less.
- an aerosol generating agent can be added to the flavor source in the non-combustion heating type flavor inhaler from the viewpoint of increasing the amount of smoke.
- the aerosol-generating agent is vaporized by heating to generate an aerosol. Since the aerosol is supplied to the user together with flavor components such as tobacco components, the user can obtain sufficient flavor.
- a non-combustion heating flavor inhaler can comprise, for example, a tobacco-containing segment filled with tobacco sheets or the like, a cooling segment, and a filter segment.
- the axial length of the tobacco-containing segment of the non-combustion-heating flavor inhaler is generally shorter than the axial length of the tobacco-containing segment of the normal combustion-type flavor inhaler in relation to the heater. Therefore, in the non-combustion heating type flavor inhaler, a large amount of tobacco sheets are filled in the short tobacco-containing segments in order to secure the amount of aerosol generated during heating.
- non-combustion heating type flavor inhalers usually use tobacco sheets with low swelling, that is, high density tobacco sheets.
- the swelling property is a value indicating the volume of a tobacco sheet having a predetermined mass when notches are compressed under a constant pressure for a certain period of time.
- Patent Literature 2 discloses a tobacco sheet used in a non-combustion heating type flavor inhaler.
- the present embodiment et al. found that the tobacco sheet filled in the tobacco-containing segment does not contribute to aerosol generation sufficiently depending on the heating method and the capacity of the heater. In order to solve this problem, it is conceivable to reduce the total heat capacity of the tobacco-containing segment.
- the present embodiment et al. (1) reduce the specific heat of the tobacco raw material contained in the tobacco sheet, We considered using However, as for (1), it is difficult to reduce the specific heat of the tobacco raw material itself, so it was considered effective to reduce the total heat capacity of the tobacco-containing segment by (2). Therefore, it is desired to develop a highly bulky (low density) tobacco sheet suitable for non-combustion heating type flavor inhalers.
- the purpose of the present embodiment is to provide a highly bulky non-combustion heating flavor inhaler tobacco sheet, a non-combustion heating flavor inhaler including the tobacco sheet, and a non-combustion heating flavor inhalation system.
- This embodiment includes the following aspects.
- a tobacco sheet for a non-combustion heating type flavor inhaler containing a fibrous material.
- a non-combustion heating flavor inhaler comprising a tobacco-containing segment including the tobacco sheet for a non-combustion heating flavor inhaler according to any one of [1] to [13].
- the non-combustion heated flavor inhaler further comprises a mouthpiece segment; wherein the tobacco-containing segment comprises a first segment containing an aerosol-generating agent and a second segment containing the tobacco sheet for a non-combustion heating type flavor inhaler,
- the non-combustion heating flavor inhaler is rod-shaped and further comprises a mouthpiece segment, wherein the mouthpiece segment comprises a filter segment having a filter media;
- the non-combustion heating flavor inhaler is an adjacent member adjacent to the tobacco-containing segment; a wrapping material for wrapping the tobacco-containing segment or a wrapping material for wrapping the tobacco-containing segment and the adjacent member; further comprising The wrapping material has a high heat transfer portion having a higher heat transfer property than the member to be wrapped in contact therewith,
- the non-combustion heating flavor inhaler according to any one of [14] to [20]; a heating device for heating the tobacco-containing segment; A non-combustion heated flavor suction system.
- a tobacco sheet for a non-combustion heating type flavor inhaler with high swelling a non-combustion heating type flavor inhaler including the tobacco sheet, and a non-combustion heating type flavor inhalation system.
- FIG. 1 It is a sectional view showing an example of a non-combustion heating type flavor inhaler concerning this embodiment.
- An example of the non-combustion heating flavor inhalation system according to the present embodiment in which (a) the state before the non-combustion heating flavor inhaler is inserted into the heating device, and (b) the non-combustion heating flavor inhaler is heated.
- FIG. 4 is a schematic diagram showing an example of a method of adhering the wrapper of the first segment according to the present embodiment;
- FIG. 4 is a schematic diagram showing another embodiment of the tobacco-containing segment according to this embodiment;
- BRIEF DESCRIPTION OF THE DRAWINGS It is a schematic diagram which shows an example of the non-combustion heating type flavor inhalation system which concerns on this embodiment.
- FIG. 4 is a schematic diagram showing another example of the configuration of the heater in the non-combustion heating flavor inhalation system according to the present embodiment.
- 1 is a schematic diagram of a non-combustion heating type flavor inhaler according to the present embodiment;
- FIG. 1 is a schematic diagram of a non-combustion heating type flavor inhalation system according to the present embodiment;
- FIG. 1 is a schematic diagram of a non-combustion heating type flavor inhalation system according to the present embodiment;
- FIG. It is a figure for demonstrating the edge part by the side of the suction end of the area
- 4 is a graph showing delivery amounts of nicotine and glycerin in Reference Example. 4 is a graph showing delivery amounts of nicotine and glycerin in Reference Example. 4 is a graph showing delivery amounts of nicotine and glycerin in Reference Example. 4 is a graph showing delivery amounts of nicotine and glycerin in Reference Example.
- FIG. 1 is a diagram showing one aspect of a non-combustion heated flavor inhalation system
- FIG. 11 shows another embodiment of a non-combustion heated flavor inhaler.
- FIG. 11 shows another embodiment of a non-combustion heated flavor inhaler.
- FIG. 11 shows another embodiment of a non-combustion heated flavor inhaler.
- It is a figure which shows the model for calculating a heat-transfer characteristic.
- FIG. 4 is a diagram showing the correlation between the amount of smoke and sensory evaluation in the automatic smoking system;
- a tobacco sheet for a non-combustion heating type flavor inhaler (hereinafter also referred to as "tobacco sheet") according to this embodiment includes a fibrous material. Since the tobacco sheet according to this embodiment contains a fibrous material, it is bulky and has a high swelling property. Therefore, by using the tobacco sheet according to the present embodiment, the total heat capacity of the tobacco-containing segment can be reduced, and the tobacco sheet filled in the tobacco-containing segment can sufficiently contribute to aerosol generation.
- the tobacco sheet according to the present embodiment preferably further contains a tobacco raw material, an aerosol-generating agent, and a molding agent. By setting the blending ratio of these to within a predetermined range, the swelling property of the tobacco sheet is further improved. .
- the fibrous material contained in the tobacco sheet according to this embodiment is not particularly limited as long as it is a material having a fibrous shape such as fibers.
- fibrous materials include fibrous pulp, fibrous tobacco materials, and fibrous synthetic cellulose. These may be used alone or in combination of two or more. Among these, fibrous pulp is preferable as the fibrous material from the viewpoint of fiber rigidity.
- the ratio of the fibrous material contained in 100% by mass of the tobacco sheet is preferably 5-50% by mass. By setting the ratio of the fibrous material to 5% by mass or more, a bulkiness that can ensure the function can be realized. Further, since the proportion of the fibrous material is 50% by mass or less, sufficient tobacco aroma and aerosol can be generated during heating.
- the proportion of the fibrous material is more preferably 5 to 47% by mass, even more preferably 5 to 45% by mass, and particularly preferably 5 to 40% by mass.
- the tobacco sheet according to the present embodiment may further contain tobacco raw material.
- the tobacco raw material is not particularly limited as long as it contains tobacco components, and examples thereof include tobacco powder and tobacco extract.
- Tobacco powder includes, for example, leaf tobacco, core bones, residual stems, and the like. These may be used alone or in combination of two or more. By chopping these into a predetermined size, they can be used as tobacco powder.
- the size of the tobacco powder it is preferable that the cumulative 90% particle size (D90) in the volume-based particle size distribution measured by the dry laser diffraction method is 200 ⁇ m or more from the viewpoint of further improving the swelling property.
- the tobacco extract for example, leaf tobacco is crushed, mixed and stirred with a solvent such as water to extract a water-soluble component from the leaf tobacco, and the resulting water extract is dried under reduced pressure and concentrated. Tobacco extracts obtained may be mentioned.
- the ratio of the tobacco raw material contained in 100% by mass of the tobacco sheet is preferably 30 to 91% by mass.
- a sufficient tobacco aroma can be generated during heating.
- a sufficient amount of an aerosol-generating agent and a molding agent can be included.
- the proportion of the tobacco raw material is more preferably 50 to 90% by mass, even more preferably 55 to 85% by mass, and particularly preferably 60 to 80% by mass.
- the tobacco sheet according to the present embodiment preferably further contains a molding agent from the viewpoint of securing the shape.
- Molding agents include, for example, polysaccharides, proteins, synthetic polymers and the like. These may be used alone or in combination of two or more. Polysaccharides include, for example, cellulose derivatives and naturally occurring polysaccharides.
- Cellulose derivatives include, for example, cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose, cyanoethylcellulose, carboxymethylcellulose, carboxyethylcellulose, aminoethylcellulose; Organic acid esters such as cellulose, cellulose formate, cellulose propionate, cellulose butyrate, cellulose benzoate, cellulose phthalate, and tosyl cellulose; and inorganic acid esters such as cellulose nitrate, cellulose sulfate, cellulose phosphate, and cellulose xanthate. be done.
- cellulose ethers such as methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxymethylethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose, benzylcellulose, tritylcellulose
- Naturally-derived polysaccharides include guar gum, tara gum, roasted bean gum, tamarind seed gum, pectin, arabic gum, tragacanth gum, karaya gum, gutti gum, arabinogalactan, amaseed gum, cascha gum, psyllium seed gum, and mugwort seed gum.
- plant-derived polysaccharides agar, alginic acid, propylene glycol alginate, furcelleran, algae-derived polysaccharides such as fukuronori extract; xanthan gum, gellan gum, curdlan, pullulan, Agrobacterium succinoglycan, welan gum, macro Microorganism-derived polysaccharides such as homopsis gum and rhamzan gum; crustacean-derived polysaccharides such as chitin, chitosan, and glucosamine; and starches such as starch, sodium starch glycolate, pregelatinized starch, and dextrin.
- proteins examples include grain proteins such as wheat gluten and rye gluten.
- Synthetic polymers include, for example, polyphosphoric acid, sodium polyacrylate, polyvinylpyrrolidone, and the like.
- the proportion of the molding agent contained in 100% by mass of the tobacco sheet is preferably 0.1 to 15% by mass.
- the ratio of the molding agent is 0.1% by mass or more, the raw material mixture can be easily molded into a sheet. Further, since the ratio of the molding agent is 15% by mass or less, it is possible to sufficiently use other raw materials for ensuring the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler.
- the ratio of the molding agent is more preferably 0.2 to 13% by mass, still more preferably 0.5 to 12% by mass, and particularly preferably 1 to 10% by mass.
- the tobacco sheet according to this embodiment preferably further contains an aerosol-generating agent.
- Aerosol-generating agents include, for example, glycerin, propylene glycol, 1,3-butanediol and the like. These may be used alone or in combination of two or more.
- the ratio of the aerosol-generating agent contained in 100% by mass of the tobacco sheet is preferably 5 to 50% by mass.
- the proportion of the aerosol generating agent is 5% by mass or more, sufficient aerosol can be generated during heating from the viewpoint of quantity.
- the proportion of the aerosol generating agent is 50% by mass or less, sufficient aerosol can be generated during heating from the viewpoint of heat capacity.
- the proportion of the aerosol generating agent is more preferably 6 to 45% by mass, even more preferably 8 to 40% by mass, and particularly preferably 10 to 30% by mass.
- the tobacco sheet according to the present embodiment may further contain a reinforcing agent from the viewpoint of further improving physical properties.
- the reinforcing agent include liquid substances such as pulp and pectin suspension having a surface coating function that forms a film when dried. These may be used alone or in combination of two or more.
- the ratio of the reinforcing agent contained in 100% by mass of the tobacco sheet is preferably 0.1 to 20% by mass.
- the proportion of the reinforcing agent is within this range, other raw materials can be sufficiently used to ensure the functions required for the tobacco-containing segment of the non-combustion heating type flavor inhaler.
- the ratio of the reinforcing agent is more preferably 0.2 to 18% by mass, more preferably 0.5 to 15% by mass.
- the tobacco sheet according to this embodiment may further contain a humectant from the viewpoint of maintaining quality.
- moisturizing agents include sugar alcohols such as sorbitol, erythritol, xylitol, maltitol, lactitol, mannitol, and reduced maltose starch syrup. These may be used alone or in combination of two or more.
- the ratio of the humectant contained in 100% by mass of the tobacco sheet is preferably 1 to 15% by mass. Within this range, other raw materials can be sufficiently used to secure the functions required for the tobacco-containing segment of the non-combustion-heating flavor inhaler.
- the ratio of the moisturizing agent is more preferably 2 to 12% by mass, even more preferably 3 to 10% by mass.
- the tobacco sheet according to the present embodiment may contain a flavoring agent such as a fragrance and a flavoring agent, if necessary.
- a flavoring agent such as a fragrance and a flavoring agent, if necessary.
- Colorants, wetting agents, preservatives, diluents such as inorganic substances, and the like may be included.
- the tobacco sheet according to the present embodiment has a swelling property of 190 cc/100 g or more.
- the swelling property is 190 cc/100 g or more, the total heat capacity of the tobacco-containing segment of the non-combustion heating type flavor inhaler can be sufficiently reduced, and the tobacco sheet filled in the tobacco-containing segment is generated by aerosol generation. be able to contribute.
- the swelling property is more preferably 210 cc/100 g or more, more preferably 230 cc/100 g or more.
- the upper limit of the swelling range is not particularly limited, it can be, for example, 800 cc/100 g or less.
- the swelling property was measured by cutting a tobacco sheet into a size of 0.8 mm x 9.5 mm, leaving it in a conditioned room at 22°C and 60% for 48 hours, and measuring DD-60A (trade name, manufactured by Borgwald). ) is the value measured by The measurement is carried out by placing 15 g of cut tobacco sheets in a cylindrical container with an inner diameter of 60 mm and compressing the container with a load of 3 kg for 30 seconds to obtain the volume.
- the "tobacco sheet” is formed by molding the constituents of the tobacco sheet into a sheet shape.
- sheet refers to a shape having a pair of substantially parallel main surfaces and side surfaces.
- the length and width of the tobacco sheet are not particularly limited, and can be appropriately adjusted according to the manner of filling.
- the thickness of the tobacco sheet is not particularly limited, but is preferably 100 to 1000 ⁇ m, more preferably 150 to 600 ⁇ m, in terms of heat transfer efficiency and strength.
- the tobacco sheet according to this embodiment can be produced by a known method such as a rolling method or a casting method.
- a known method such as a rolling method or a casting method.
- Various tobacco sheets manufactured by such a method are disclosed in detail in "Encyclopedia of Tobacco, Tobacco Research Center, March 31, 2009".
- Examples of methods for producing tobacco sheets by rolling include methods including the following steps. (1) A step of mixing water, tobacco powder, an aerosol-generating agent, a molding agent, and fibrous pulp to obtain a mixture. (2) A step of rolling the mixture by putting it into rolling rollers. (3) A step of peeling off the rolled product on the rolling roller with a doctor knife, transferring it to a net conveyor, and drying it with a dryer.
- the surface of each rolling roller may be heated or cooled, and the number of revolutions of each rolling roller may be adjusted, depending on the purpose. Further, by adjusting the distance between the rolling rollers, it is possible to obtain a tobacco sheet having a desired basis weight.
- Examples of methods for producing tobacco sheets by casting include methods including the following steps. (1) A step of mixing water, tobacco powder, an aerosol-generating agent, a molding agent, and fibrous pulp to obtain a mixture. (2) A step of thinly spreading (casting) the mixture and drying to form a tobacco sheet.
- a slurry obtained by mixing water, tobacco powder, an aerosol generating agent, a molding agent, and fibrous pulp is irradiated with ultraviolet rays or X-rays to remove some components such as nitrosamines. may be added.
- the non-combustion heating flavor inhaler comprises a tobacco-containing segment including the tobacco sheet according to this embodiment. Since the non-combustion heating type flavor inhaler according to the present embodiment includes the tobacco-containing segment filled with the highly bulky tobacco sheet according to the present embodiment, the total heat capacity of the tobacco-containing segment can be sufficiently reduced. This allows the tobacco sheets loaded into the tobacco-containing segments to contribute more to aerosol generation.
- FIG. 4 An example of the non-combustion heating type flavor inhaler according to this embodiment is shown in FIG. 4 and a filter segment 5 .
- the non-combustion-heating flavor inhaler according to this embodiment may have segments other than the tobacco-containing segment, cooling segment, center hole segment, and filter segment.
- the axial length of the non-combustion heating type flavor inhaler according to the present embodiment is not particularly limited, but is preferably 40 mm or more and 90 mm or less, more preferably 50 mm or more and 75 mm or less, 50 mm or more, It is more preferably 60 mm or less.
- the circumference of the non-combustion heating flavor inhaler is preferably 16 mm or more and 25 mm or less, more preferably 20 mm or more and 24 mm or less, and even more preferably 21 mm or more and 23 mm or less.
- the length of the tobacco-containing segment is 20 mm
- the length of the cooling segment is 20 mm
- the length of the center hole segment is 8 mm
- the length of the filter segment is 7 mm.
- the length of the filter segment can be selected within a range of 4 mm or more and 10 mm or less.
- the ventilation resistance of the filter segments at that time is selected to be 15 mmH 2 O/seg or more and 60 mmH 2 O/seg or less per segment.
- the tobacco sheet according to the present embodiment is filled in wrapping paper (hereinafter also referred to as "wrapper").
- the method of filling the tobacco sheet into the wrapping paper is not particularly limited, but for example, the tobacco sheet may be wrapped in a wrapper, or the tobacco sheet may be filled in a cylindrical wrapper.
- the shape of the tobacco sheet has a longitudinal direction such as a rectangular shape, the tobacco sheet may be packed so that the longitudinal direction is in an unspecified direction in the wrapper, and the tobacco-containing segment 2 may be packed in an axial direction or a longitudinal direction. They may be aligned and filled in a direction perpendicular to the axial direction.
- the cooling segment 3 may be configured by a cylindrical member 7.
- the tubular member 7 may be, for example, a paper tube formed by processing cardboard into a cylindrical shape.
- the tubular member 7 and the mouthpiece lining paper 12, which will be described later, are provided with perforations 8 penetrating both. Due to the presence of the perforations 8 outside air is introduced into the cooling segment 3 during suction. As a result, the vaporized aerosol component generated by heating the tobacco-containing segment 2 comes into contact with the outside air, and its temperature decreases, liquefying to form an aerosol.
- the diameter (spanning length) of the perforations 8 is not particularly limited, but may be, for example, 0.5 mm or more and 1.5 mm or less.
- the number of perforations 8 is not particularly limited, and may be one or two or more. For example, multiple perforations 8 may be provided on the circumference of the cooling segment 3 .
- the amount of outside air introduced through the perforations 8 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the total volume of the gas inhaled by the user.
- the ratio of the amount of outside air is 85% by volume or less, it is possible to sufficiently suppress reduction in flavor due to dilution by outside air.
- this is also called a ventilation ratio.
- the lower limit of the ventilation ratio range is preferably 55% by volume or more, more preferably 60% by volume or more.
- the cooling segment may also be a segment comprising a crumpled, pleated, gathered or folded sheet of suitable construction material.
- the cross-sectional profile of such elements may exhibit randomly oriented channels.
- the cooling segment may also include a bundle of longitudinally extending tubes.
- Such cooling segments may be formed, for example, from pleated, gathered, or folded sheet material wrapped with wrapping paper.
- the axial length of the cooling segment can be, for example, 7 mm or more and 28 mm or less, and can be, for example, 18 mm.
- the cooling segment can be substantially circular in its axial cross-sectional shape, and its diameter can be, for example, 5 mm or more and 10 mm or less, and can be, for example, about 7 mm.
- the center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner wrapping paper) covering the filling layer.
- the center hole segment 4 is composed of a second filling layer 9 having a hollow portion and a second inner plug wrapper 10 covering the second filling layer 9 .
- the center hole segment 4 has the function of increasing the strength of the mouthpiece segment 6 .
- the second filling layer 9 is filled with, for example, cellulose acetate fibers at a high density, and a plasticizer containing triacetin is added in an amount of 6% by mass or more and 20% by mass or less based on the mass of cellulose acetate and hardened to have an inner diameter of ⁇ 1.0 mm.
- the second packed layer 9 has a high packing density of fibers, air and aerosol flow only in the hollow portion and hardly flow in the second packed layer 9 during suction. Since the second filling layer 9 inside the center hole segment 4 is a fiber filling layer, the feeling of touch from the outside during use hardly causes the user to feel uncomfortable. Note that the center hole segment 4 may not have the second inner plug wrapper 10 and may retain its shape by thermoforming.
- the configuration of the filter segment 5 is not particularly limited, it may be composed of a single or a plurality of packed layers.
- the outer side of the packing layer may be wrapped with one or more wrapping papers.
- the per-segment ventilation resistance of the filter segments 5 can be appropriately changed depending on the amount of filler, the material, and the like with which the filter segments 5 are filled.
- the ventilation resistance can be increased by increasing the amount of cellulose acetate fiber with which the filter segment 5 is filled.
- the packing density of the cellulose acetate fiber can be 0.13-0.18 g/cm 3 .
- the airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).
- the length of the circumference of the filter segment 5 is not particularly limited, it is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm.
- the axial length of the filter segment 5 can be selected from 4 to 10 mm, and is selected so that its ventilation resistance is from 15 to 60 mmH 2 O/seg.
- the axial length of the filter segment 5 is preferably 5-9 mm, more preferably 6-8 mm.
- the cross-sectional shape of the filter segment 5 is not particularly limited, but may be, for example, circular, elliptical, or polygonal.
- the filter segment 5 may be directly added with destructible capsules containing perfume, perfume beads, and perfume.
- the center hole segment 4 and the filter segment 5 can be connected with an outer plug wrapper (outer wrapping paper) 11.
- the outer plug wrapper 11 can be, for example, cylindrical paper.
- the tobacco-containing segment 2, the cooling segment 3, and the connected center hole segment 4 and filter segment 5 can be connected by the mouthpiece lining paper 12. These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 12, inserting the three segments, and winding them.
- these segments may be divided into multiple times and connected with multiple lining papers.
- the non-combustion heating flavor inhalation system includes the non-combustion heating flavor inhaler according to this embodiment, and a heating device that heats the tobacco-containing segment of the non-combustion heating flavor inhaler.
- the non-combustion-heating flavor inhalation system according to this embodiment may have other configurations in addition to the non-combustion-heating flavor inhaler and the heating device according to this embodiment.
- the non-combustion heating flavor inhalation system shown in FIG. 2 includes a non-combustion heating flavor inhaler 1 according to this embodiment and a heating device 13 that heats the tobacco-containing segment of the non-combustion heating flavor inhaler 1 from the outside. Prepare.
- FIG. 2(a) shows the state before the non-combustion heating flavor inhaler 1 is inserted into the heating device 13, and FIG. indicates the state of
- the heating device 13 shown in FIG. 2 includes a body 14, a heater 15, a metal tube 16, a battery unit 17, and a control unit .
- the body 14 has a cylindrical recess 19, and a heater 15 and a metal pipe are provided on the inner side surface of the recess 19 at positions corresponding to the tobacco-containing segments of the non-combustion heating flavor inhaler 1 inserted into the recess 19. 16 are arranged.
- the heater 15 can be a heater using electric resistance, and electric power is supplied from the battery unit 17 according to an instruction from the control unit 18 that performs temperature control, and the heater 15 is heated. The heat emitted from the heater 15 is transmitted to the tobacco-containing segment of the non-combustion heating flavor inhaler 1 through the metal pipe 16 with high thermal conductivity.
- FIG. 2(b) there is a gap between the outer circumference of the non-combustion-heating flavor inhaler 1 and the inner circumference of the metal tube 16 because it is schematically illustrated.
- the heating device 13 heats the tobacco-containing segment of the non-combustion-heating flavor inhaler 1 from the outside, but it may heat from the inside.
- the heating temperature of the heating device is not particularly limited, it is preferably 400°C or lower, more preferably 150°C or higher and 400°C or lower, and even more preferably 200°C or higher and 350°C or lower.
- the heating temperature indicates the temperature of the heater of the heating device.
- non-combustion heating type flavor inhalers are required to improve the delivery of flavor components (smoke).
- a non-combustion heated flavor inhaler with improved delivery of flavor components (smoke) is described below.
- This embodiment includes the following [1a] to [19a]. According to this embodiment, it is possible to provide a non-combustion heating flavor inhaler and a non-combustion heating flavor inhalation system in which the components supplied to the user are evenly balanced from the first half to the second half of use.
- a non-combustion heated flavor inhaler comprising a tobacco-containing segment and a mouthpiece segment
- the tobacco-containing segment includes a first segment containing an aerosol-generating agent and a second segment containing the tobacco sheet for a non-combustion heating type flavor inhaler according to the present embodiment
- a non-combustion heated flavor inhaler wherein the mouthpiece segment includes a cooling segment and a filter segment.
- the first segment includes a cylindrical wrapper and a nonwoven fabric composed of the plant fiber filled inside the wrapper, and the nonwoven fabric includes the aerosol generating agent;
- the wrapper is a metal foil, a laminated sheet of metal foil and paper, a polymer film, a laminated sheet of polymer film and paper, or from the group consisting of modified cellulose, modified starch, polyvinyl alcohol and vinyl acetate on the surface
- the non-combustion heating flavor inhaler according to [4a] or [5a] which is paper coated with a selected coating agent.
- the wrapper is a laminate of a paper layer forming the outer surface and a liquid-impermeable layer forming the inner surface, wherein the liquid-impermeable layer consists of a metal foil, a polymer film, or a layer of a coating agent selected from the group consisting of modified cellulose, modified starch, polyvinyl alcohol and vinyl acetate; Any one of [4a] to [6a], wherein the liquid-impermeable layers of the wrapper are bonded together at one end and the other end of the wrapper to form the wrapper in a cylindrical shape.
- the non-combustion heating type flavor inhaler according to .
- the heater heats the entire side surface of the first columnar segment and either partially heats the side surface of the second columnar segment or does not heat the second segment.
- the heater heats the entire side surface and the entire bottom surface of the first columnar segment, and heats at least part of the side surface of the second columnar segment, or heats the second segment.
- the heater heats the inside of the first columnar segment over the entire axial direction and heats the inside of the second columnar segment in a part of the axial direction, or the second segment
- the non-combustion heating flavor inhalation system according to any one of [15a] to [17a], including an internal heater that does not heat the
- the tobacco-containing segments are a first segment containing an aerosol generating agent and a second segment comprising a tobacco sheet for a non-combustion heating flavor inhaler according to this embodiment. including. Therefore, when heating the tobacco-containing segment, the heating temperature of the first segment containing the aerosol generating agent with a high boiling point (low vapor pressure) is increased, and the tobacco component with a low boiling point (high vapor pressure), etc. The heating temperature of the second segment containing the flavor component can be lowered.
- the non-combustion heated flavor inhaler 101 shown in FIG. 3( a ) comprises a tobacco-containing segment 102 and a mouthpiece segment 103 .
- the tobacco-containing segment 102 includes a first segment 104 containing an aerosol-generating agent, and a second segment 104 containing a non-combustion heating type tobacco sheet for flavor inhalers according to the present embodiment arranged downstream of the first segment 104. and a segment 105 of .
- the mouthpiece segment 103 has a cooling segment 106, a center hole segment 107, and a filter segment 108 in this order from the upstream side.
- the mouthpiece segment 103 does not have to include the center hole segment 107 in this embodiment.
- the tobacco-containing segment 102 mainly the first segment 104
- the aerosol-generating agent in the first segment 104 and the flavor component in the second segment 105 are vaporized, and by inhalation these Transitioning to mouthpiece segment 103 , suction is applied from the end of filter segment 108 .
- the tobacco-containing segment according to this embodiment includes a first segment containing an aerosol generating agent and a second segment containing a tobacco sheet for a non-combustion heating type flavor inhaler according to this embodiment.
- the tobacco-containing segment according to this embodiment may include a plurality of the first segments and/or the second segments.
- the first segment according to this embodiment contains an aerosol generator.
- Aerosol-generating agents include, for example, glycerin, propylene glycol, 1,3-butanediol and the like. These may be used alone or in combination of two or more.
- the first segment preferably further contains plant fibers.
- Plant fibers include, for example, wood pulp, hemp, corn, bamboo, cotton, and tobacco. These may be used alone or in combination of two or more.
- the plant fiber can be a plant fiber sheet in which plant fibers are aggregated.
- the plant fiber preferably contains 10 to 50% by mass of the aerosol-generating agent, preferably 12 to 30% by mass. It is more preferable to contain % by mass.
- the first segment preferably includes a cylindrical wrapper and a nonwoven fabric made of plant fibers filled inside the wrapper, and the nonwoven fabric preferably includes an aerosol generating agent.
- the aerosol-generating agent can be sufficiently retained by the non-woven fabric.
- the thickness of the nonwoven fabric is not particularly limited, it can be, for example, 1 to 2 mm.
- the nonwoven fabric preferably contains 10 to 50% by weight of the aerosol generating agent, more preferably 12 to 30% by weight.
- the first segment includes a cylindrical wrapper and paper composed of plant fibers filled inside the wrapper, and the paper includes an aerosol-generating agent.
- the paper can sufficiently retain the aerosol-generating agent.
- the thickness of the paper is not particularly limited, but can be, for example, 50-200 ⁇ m.
- the paper preferably contains 10 to 50% by weight of the aerosol generating agent, more preferably 12 to 30% by weight.
- a plurality of sheet-like nonwoven fabrics 121 are stacked and filled in the wrapper in a state of being folded into an S-shape. . Since the nonwoven fabric is folded and filled in such a first segment, the gap between the nonwoven fabrics is usually invisible. The heater enters the gap between the two, and there is no damage to the nonwoven fabric itself. Therefore, when the heater is heated, the nonwoven fabric or the like can be prevented from burning and becoming brittle and remaining as dust in the device.
- a sheet of paper 131 is filled inside the wrapper in a gathered state.
- the heater penetrates into the gap between the sheets of paper, and the paper itself is not damaged. Therefore, when the heater is heated, it is possible to prevent the paper or the like from burning and becoming brittle and remaining as dust in the device.
- the non-woven fabric may be gathered and filled instead of being folded into the S shape. When filled with gathers, a plurality of air-permeable channels are formed in the direction of air flow, so that the first segment can have a low ventilation resistance.
- the wrapper In addition, from the viewpoint of suppressing exudation of the aerosol generating agent, it is desirable to use a wrapper with reduced liquid permeability.
- wrappers that are difficult to permeate with liquids include metal foils, laminated sheets of metal foil and paper, polymer films, laminated sheets of polymer films and paper, surface-modified cellulose, modified starch, polyvinyl alcohol, vinyl acetate, and other liquids. Examples include paper coated with a coating agent that prevents permeation of .
- the wrapper preferably contains a metal foil with excellent thermal conductivity from the viewpoint of uniform temperature distribution in the longitudinal direction of the first segment.
- the appearance can be made similar to a normal burning type flavor inhaler (cigarette).
- the surface was coated with a liquid impermeable coating such as modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate.
- a liquid impermeable coating such as modified cellulose, modified starch, polyvinyl alcohol, and vinyl acetate.
- the use of paper is preferred as it allows the rod stiffness, resilience and feel of the first segment to resemble that of a typical burning flavor inhaler (cigarette).
- the wrapper is a laminate of a paper layer constituting the outer surface and a liquid-impermeable layer constituting the inner surface
- the liquid-impermeable layer is made of metal foil, polymer film, modified cellulose or modified starch. , polyvinyl alcohol and vinyl acetate.
- the wrapper is formed in a cylindrical shape by bonding the liquid-impermeable layers of the wrapper together at one end and the other end of the wrapper.
- a nonwoven fabric 122 containing an aerosol-generating agent is placed in a cylindrical wrapper, which is a laminate of a paper layer 124 forming the outer surface and a liquid-impermeable layer 123 forming the inner surface. filled.
- liquid-impermeable layers 123 are bonded together at one end and the other end of the wrapper (bonded portion 125) to form the wrapper in a cylindrical shape.
- the first segment preferably further contains a thickening agent.
- a thickening agent such as glycerin or propylene glycol is liquid at room temperature, and may flow out of a nonwoven fabric or the like when contained in a large amount.
- thickeners include thickening polysaccharides such as gellan gum, tamarind gum, agar, carrageenan, pectin and alginates, proteins such as collagen and gelatin, and modified celluloses such as HPC, CMC and HPMC.
- thickeners may be used alone or in combination of two or more.
- the content of the thickener is 0.1 to 5.0 parts per 100 parts by mass of the aerosol generating agent, depending on the type of thickener used. Parts by mass are preferred.
- glycerin is used as an aerosol generator
- native gellan gum is used as a thickener
- water is used as a diluent
- 0.3 to 0.7 parts by mass of native gellan gum and water are added to 100 parts by mass of glycerin.
- an aerosol generating agent having a viscosity of 2000 to 26000 (mPa ⁇ sat 25°C) and having excellent retention can be obtained.
- the aerosol-generating agent is gel-like in the room temperature range, and becomes liquid when heated to about 60 to 70°C. By doing this, when manufacturing the first segment, the aerosol generating agent can be easily incorporated by heating it into a liquid state and applying it to nonwoven fabric or paper, and after the temperature has decreased to about room temperature, It becomes a gel state and is stably maintained.
- the first segment may contain, in addition to the aerosol-generating agent, vegetable fiber (non-woven fabric or paper), wrapper, and thickener, for example, tobacco components, flavor components other than tobacco components (external flavoring agents), and the like. Flavoring ingredients other than tobacco ingredients include, for example, L-menthol, licorice extract, reducing sugar, and cocoa extract. In addition, the first segment may not contain a flavor component.
- the axial length of the first segment is not particularly limited, it can be, for example, 5 to 15 mm.
- the length of the circumference of the first segment is not particularly limited, it can be, for example, 15 to 24 mm.
- the second segment according to this embodiment includes the tobacco sheet for a non-combustion heating type flavor inhaler according to this embodiment. That is, the second segment contains flavor components such as tobacco components.
- the second segment can include, for example, a tubular wrapper and the tobacco sheet for a non-combustion heating type flavor inhaler according to the present embodiment filled inside the wrapper.
- the tobacco sheet can contain a flavor development aid.
- the flavor development aid can include at least one of alkali metal and/or alkaline earth metal carbonates, hydrogen carbonates, oxides and hydroxides.
- the flavor development aid is potassium carbonate or sodium carbonate. Since most of the tobacco components contained in the tobacco sheet are amines, the tobacco sheet containing the flavor development aid ensures volatilization of the tobacco components even at relatively low temperatures, and sufficiently develops the tobacco flavor. can be done.
- the amount of the flavor development aid contained in the tobacco sheet is preferably 5 to 20 parts by mass with respect to 100 parts by mass of the tobacco sheet.
- the pH of the tobacco sheet may be adjusted to 7-11 by adding the flavor development aid.
- the pH can be measured with a pH meter (eg, IQ240 manufactured by IQ Scientific Instruments Inc.). For example, distilled water is added to 2 to 10 g of tobacco sheet in a mass ratio of 10 times, and the mixture of water and tobacco sheet is shaken at 200 rpm for 10 minutes at room temperature (eg, 22° C.) and allowed to stand for 5 minutes. Measure the pH of the extract with a pH meter.
- a pH meter eg, IQ240 manufactured by IQ Scientific Instruments Inc.
- the tobacco sheet can contain lipids.
- lipids include acylglycerols such as monoglycerides, diglycerides and triglycerides, and fatty acids. These may be used alone or in combination of two or more.
- acylglycerols such as monoglycerides, diglycerides and triglycerides, and fatty acids. These may be used alone or in combination of two or more.
- lipids may also be contained in the aerosol generated during use, albeit in a very small amount. By doing so, it is possible to suppress re-vaporization of the flavor component after the vapor of the flavor component and the aerosol-generating agent is cooled to form an aerosol.
- the amount of lipid contained in the tobacco sheet is preferably 2 to 15 parts by mass with respect to 100 parts by mass of the tobacco sheet.
- the second segment is, for example, a tubular wrapper filled with chopped tobacco sheets randomly or with aligned orientation, or packed with gathered tobacco sheets without being chopped. can be made, etc.
- cut tobacco sheets are also referred to as cut tobacco sheets.
- the wrapper for example, a roll of paper rolled into a tube may be used.
- the content of nicotine in the filler to be filled in the wrapper is preferably 1.5% by mass or more, more preferably 2.0 to 4.0% by mass.
- the packing density of the shredded tobacco packed in the wrapper is set to 0.2 to 0.7 mg/mm 3 to ensure the production of sufficient flavor components during use, and the second segment. This is preferable because it guarantees sufficient rod hardness.
- shredded tobacco or the preparation method there are no particular restrictions on the size of shredded tobacco or the preparation method.
- a tobacco sheet cut into pieces having a width of 0.5 mm or more and 2.0 mm or less and a length of 3 mm or more and 10 mm or less. Tobacco cuts of such a size are preferable for filling the material to be filled.
- a tobacco sheet is cut into pieces having a width of 0.5 mm or more and 2.0 mm or less and a length longer than the cut tobacco described above, preferably about the same length as the material to be filled ( Strand type engraving) can be mentioned. From the standpoint of ease of molding, it is preferable to use a tobacco sheet for the strand type cut.
- the water content of the cut tobacco may be 10% by mass or more and 15% by mass or less, preferably 11% by mass or more and 13% by mass or less, relative to the total mass of the tobacco cuts. With such a water content, it is possible to suppress the occurrence of winding stains after the cut tobacco is filled into the material to be filled.
- the packing density of the tobacco sheet inside the wrapper can be appropriately set according to the form of the tobacco sheet to be packed, the desired flavor, airflow resistance, and the like.
- the packing density may be 0.2 mg/mm 3 or more and 0.7 mg/mm 3 or less.
- the packing density is calculated by the ratio of the mass of the tobacco sheet to the internal volume of the rod formed by the wrapper.
- the axial length of the second segment is not particularly limited, it can be, for example, 5 to 15 mm.
- the length of the circumference of the second segment is not particularly limited, it can be, for example, 15 to 24 mm.
- the configuration of the tobacco-containing segment is not particularly limited as long as the tobacco-containing segment includes the first segment and the second segment, but the second segment is located on the mouthpiece segment side of the first segment. (downstream side).
- the second columnar segment 105 can be arranged on the mouthpiece segment 103 side (downstream side) with respect to the first columnar segment 104 .
- the first segment 104 can be configured by filling a first wrapper 110 with a nonwoven fabric 109 containing an aerosol-generating agent and made of plant fibers.
- the second segment 5 can be constructed by filling the tobacco sheet 111 into the second wrapper 112 .
- each component contained in the first segment and the second segment is mainly determined by the heating temperature, but the presence of a substance that is highly compatible with the volatilizing component in the surrounding area reduces the volatilization of the component. is promoted.
- the aerosol-generating agent volatilized in the first segment is cooled and liquefied (aerosolized) at the moment it flows into the second segment at the time of inhalation, and the flavor component (for example, nicotine) present in the second segment ) is dissolved in the aerosol and carried out of the tobacco-containing segment, the concentration of the flavor component in the second segment is reduced and volatilization is promoted. Thereby, the release efficiency is ensured without increasing the temperature of the second segment so much.
- the ratio (A/B) of the length (A) of the first segment to the length (B) of the second segment in the axial direction of the tobacco-containing segment is preferably 0.3 to 3.0. 5 to 2.0 is more preferred.
- the first segment and the second segment can be connected by being wound with an outer wrapper.
- the outer wrapper may be a normal paper wrapper, but is preferably an outer wrapper containing a heat-conducting material.
- an outer wrapper containing a heat-conducting material By wrapping the first segment and the second segment with an outer wrapper containing a heat-conducting material, for example, even when only the side surface of the first segment is heated by the outer peripheral heater, the heat of the heater is transferred to the second segment. Heat can be transferred to the two segments uniformly and efficiently.
- thermally conductive materials include metal foil, which has a higher thermal conductivity than paper.
- thermal conductivity 10 W/m K or more
- Table 1 shows the thermal conductivity of typical metal foils (alloy foils).
- the columnar first segment may be provided extending in the axial direction of the tobacco-containing segment, and the second segment may be arranged on the outer circumference of the first segment.
- the second segment 105 can be arranged on the (side) perimeter of the columnar first segment 104 .
- the first segment can be heated by inserting an internal heater such as a blade heater.
- the above configuration is preferable in that the first segment to be heated at a higher temperature is formed in a narrow winding shape, so that the first segment can be efficiently heated to a high temperature by the internal heater.
- the easiness of air flow in the vertical direction of the cylindrical rod during suction is adjusted by adjusting the packing density of each filling to make the second segment easier to flow than the first segment.
- the aerosol-generating agent mainly generated from one segment moving directly toward the mouthpiece the aerosol-generating agent mainly generated from the first segment moves to the second segment and accompanies the flavor component. Then you can move to the mouthpiece part.
- the interface between the first segment and the second segment is preferably composed of a permeable wrapper, such as paper with an air permeability of 1000 to 30000 Coresta units, through which gases and aerosols can permeate. .
- a permeable wrapper such as paper with an air permeability of 1000 to 30000 Coresta units
- the columnar second segment may be provided extending in the axial direction of the tobacco-containing segment, and the first segment may be arranged on the outer circumference of the second segment.
- the first segment 104 can be arranged on the (side) perimeter of the columnar second segment 105 .
- the side surface of the first segment can be heated by the peripheral heater.
- the above configuration is preferable in that the first segment to be heated at a higher temperature is efficiently heated to a high temperature by the external heater.
- the easiness of air flow in the vertical direction of the cylindrical rod during suction is adjusted by adjusting the packing density of each filling to make the second segment easier to flow than the first segment.
- the aerosol-generating agent mainly generated from the first segment moves to the second segment and accompanies the flavor component. Then you can move to the mouthpiece part.
- the interface between the first segment and the second segment is preferably composed of a permeable wrapper, such as paper with an air permeability of 1000 to 30000 Coresta units, through which gases and aerosols can permeate. .
- a permeable wrapper such as paper with an air permeability of 1000 to 30000 Coresta units
- the axial length of the tobacco-containing segment is not particularly limited, but can be, for example, 12-50 mm.
- the length of the circumference of the tobacco-containing segment is not particularly limited, it can be, for example, 15 to 24 mm.
- the mouthpiece segment according to this embodiment includes a cooling segment and a filter segment.
- a mouthpiece segment according to this embodiment may include a plurality of cooling segments and/or filter segments.
- the mouthpiece segment according to this embodiment may include segments other than the cooling segment and the filter segment. Other segments include, for example, a center hole segment.
- cooling segment 106 may be configured by cylindrical member 113 .
- the cylindrical member 113 may be, for example, a paper tube formed by processing cardboard into a cylindrical shape.
- the cooling segment is located downstream from the tobacco-containing segment.
- the function required for the cooling segment is to cool the vapor of the flavor component and aerosol generating agent generated in the tobacco-containing segment during use while minimizing the reduction by filtration and adsorption as much as possible. to liquefy (aerosolize).
- the difference between the segment internal temperature at the cooling segment inlet and the segment internal temperature at the cooling segment outlet may be 20° C. or more.
- the temperature difference between the segment inlet and the segment outlet is 20°C.
- One embodiment of the cooling segment may be a hollow tube formed by processing one sheet of paper or paper in which a plurality of sheets of paper are pasted together into a cylindrical shape.
- a material for forming the tube in addition to the paper described above, a corrugated sheet of cellulose acetate fiber, or a plastic film such as polyolefin or polyester may be used. It is also preferred that there are holes for the introduction of external air around the tube in order to bring the room temperature external air into contact with the hot steam to increase the cooling effect.
- the cooling effect can be increased by utilizing the heat absorption and the heat of dissolution accompanying the phase change of the coating.
- the ventilation resistance of this cylindrical cooling segment is zero mmH2O .
- the cooling segment it is also preferable to fill the inside of a pipe processed into a cylindrical shape with a sheet member for cooling.
- a sheet member for cooling In this case, one or more air flow channels in the flow direction can be used to achieve a low level of component removal through the segments while still providing cooling by the cooling sheet.
- the ventilation resistance of the cooling segment when filled with this cooling sheet is desirably 0 to 30 mmH 2 O.
- Airflow resistance (RTD) is the pressure required to force air through the entire length of the object under a test of 17.5 ml/sec flow rate at 22°C and 101 kPa (760 Torr). RTD is commonly expressed in units of mmH2O and is measured according to ISO 6565:2011. Even in this mode in which the cooling sheet is filled, the tubular member may be provided with holes for introducing external air.
- the total surface area of the sheet member for cooling can be 300 mm 2 /mm or more and 1000 mm 2 /mm or less. This surface area is the surface area per length (mm) of the sheet member for cooling in the ventilation direction.
- the total surface area of the cooling sheet member is preferably 400 mm 2 /mm or more, more preferably 450 mm 2 /mm or more, and preferably 600 mm 2 /mm or less, and 550 mm 2 /mm or less. The following are more preferable.
- the sheet member for cooling has a large surface area. From the standpoint of reducing the removal of flavor components and aerosol-generating agents by filtration or adsorption, it is desirable that the air flow resistance of the cooling segment filled with the sheet member for cooling is low.
- the cooling sheet may be formed by a thin sheet of material that is crumpled to form channels in the machine direction and then pleated, gathered and folded. .
- the thickness of the constituent material of the cooling sheet member can be 5 ⁇ m or more and 500 ⁇ m or less, for example, 10 ⁇ m or more and 250 ⁇ m or less.
- the cooling segment can comprise a sheet material selected from the group consisting of polyethylene, polypropylene, polyvinyl chloride, polyethylene terephthalate, polylactic acid, cellulose acetate, and aluminum foil.
- the paper used for the cooling sheet member preferably has a basis weight of 30 to 100 g/m 2 and a thickness of 20 to 100 ⁇ m.
- the air permeability of the paper used as the material for the cooling sheet is desirably low, preferably 10 Coresta units or less.
- a tubular member 113 and a mouthpiece lining paper 120 are provided with perforations 114 penetrating both.
- the presence of perforations 114 allows ambient air to be introduced into cooling segment 106 during suction. As a result, the vaporized aerosol component generated by heating the tobacco-containing segment 102 comes into contact with the outside air, and is liquefied to form an aerosol as its temperature decreases.
- the diameter (spanning length) of the perforations 114 is not particularly limited, but may be, for example, 0.5 mm or more and 1.5 mm or less.
- the number of perforations 114 is not particularly limited, and may be one or two or more. For example, multiple perforations 114 may be provided around the circumference of cooling segment 106 .
- the amount of outside air introduced through the perforations 114 is preferably 85% by volume or less, more preferably 80% by volume or less, relative to the total volume of the gas inhaled by the user.
- the ratio of the amount of outside air is 85% by volume or less, it is possible to sufficiently suppress reduction in flavor due to dilution by outside air.
- this is also called a ventilation ratio.
- the lower limit of the ventilation ratio range is preferably 55% by volume or more, more preferably 60% by volume or more.
- the generated aerosol can drop in temperature by 10°C or more as it is drawn through the cooling segment by the user. In another aspect, the temperature may drop by 15° C. or more, and in yet another aspect, by 20° C. or more.
- the cooling segment can be formed in a rod shape with an axial length of, for example, 7 mm or more and 30 mm or less.
- the cooling segment may have an axial length of 20 mm.
- the cooling segment is substantially circular in its axial cross-sectional shape and preferably has a perimeter length of 16-25 mm, more preferably 20-24 mm, 23 mm is more preferred.
- the center hole segment is composed of a filling layer having one or more hollow portions and an inner plug wrapper (inner wrapping paper) covering the filling layer.
- the center hole segment 107 is composed of a second filling layer 115 having a hollow portion and a second inner plug wrapper 116 covering the second filling layer 115.
- Center hole segment 107 has the function of increasing the strength of mouthpiece segment 103 .
- the second filling layer 115 has an inner diameter of ⁇ 1.0 mm, for example, filled with cellulose acetate fibers at a high density and hardened by adding a plasticizer containing triacetin in an amount of 6% by mass or more and 20% by mass or less based on the mass of cellulose acetate. As described above, a rod having a diameter of 5.0 mm or less can be obtained. Since the second packing layer 115 has a high packing density of fibers, air and aerosol flow only through the hollow portion and hardly flow inside the second packing layer 115 during suction. Since the second filling layer 115 inside the center hole segment 107 is a fiber filling layer, the feeling of touch from the outside during use hardly causes the user to feel uncomfortable. Note that the center hole segment 107 may not have the second inner plug wrapper 116 and may retain its shape by thermoforming.
- the configuration of the filter segment is not particularly limited, it may be composed of a single or a plurality of packed layers.
- the outside of the first packing layer 117 may be wrapped with a first inner plug wrapper 118 (inner wrapping paper).
- the per-segment ventilation resistance of the filter segments can be changed as appropriate by the amount of filler, material, etc., with which the filter segments are filled. For example, when the filler is cellulose acetate fiber, the ventilation resistance can be increased by increasing the amount of cellulose acetate fiber with which the filter segment is filled.
- the packing density of the cellulose acetate fiber can be 0.13-0.18 g/cm 3 .
- the thickness of one cellulose acetate fiber is preferably 5 to 20 denier/filament. Furthermore, it is more preferably 7 to 13 denier/filament from the viewpoint of high-speed production of filter segments.
- the airflow resistance is a value measured by an airflow resistance measuring instrument (trade name: SODIMAX, manufactured by SODIM).
- the circumference of the filter segment is not particularly limited, but is preferably 16 to 25 mm, more preferably 20 to 24 mm, even more preferably 21 to 23 mm.
- the axial length of the filter segment can be selected from 5 to 20 mm, and is selected so that its ventilation resistance is from 10 to 60 mmH 2 O/seg.
- the axial length of the filter segment is preferably 5-9 mm, more preferably 6-8 mm.
- the cross-sectional shape of the filter segment is not particularly limited, and may be, for example, circular, elliptical, polygonal, and the like.
- the filter segment may be directly added with destructible capsules containing perfume, perfume beads, and perfume.
- the center hole segment 107 and the filter segment 108 can be connected with an outer plug wrapper (outer wrapping paper) 119 .
- the outer plug wrapper 119 can be, for example, a cylinder of paper.
- the tobacco-containing segment 102 , cooling segment 106 , connected center hole segment 107 and filter segment 108 can be connected by mouthpiece lining paper 120 .
- These connections can be made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper 120, inserting the three segments, and winding them.
- these segments may be divided into multiple times and connected with multiple lining papers.
- the first segment 104 may be fixed by a mouthpiece lining paper 120, as shown in FIG.
- the axial length of the non-combustion heating type flavor inhaler according to the present embodiment is not particularly limited, but is preferably 40 mm or more and 90 mm or less, more preferably 50 mm or more and 75 mm or less, 50 mm or more, It is more preferably 60 mm or less.
- the circumference of the non-combustion heating flavor inhaler is preferably 16 mm or more and 25 mm or less, more preferably 20 mm or more and 24 mm or less, and even more preferably 21 mm or more and 23 mm or less.
- the length of the tobacco-containing segment is 20 mm
- the length of the cooling segment is 20 mm
- the length of the center hole segment is 8 mm
- the length of the filter segment is 7 mm.
- the length of the filter segment can be selected within the range of 4 mm or more and 20 mm or less.
- the ventilation resistance of the filter segments at that time is selected to be 10 mmH 2 O/seg or more and 60 mmH 2 O/seg or less per segment.
- the non-combustion heating flavor inhalation system includes the non-combustion heating flavor inhaler according to the present embodiment, and a heating device including a heater for heating the tobacco-containing segment of the non-combustion heating flavor inhaler. , provided. Since the non-combustion heating type flavor inhalation system according to the present embodiment includes the non-combustion heating type flavor inhaler according to the present embodiment, each component supplied to the user is evenly balanced from the first half to the second half of use. .
- the non-combustion heating flavor inhalation system according to this embodiment may have a configuration other than the non-combustion heating flavor inhaler and the heating device according to this embodiment.
- the non-combustion heating flavor inhalation system shown in FIG. 7 includes a non-combustion heating flavor inhaler 101 according to this embodiment and a heating device 127 that heats the tobacco-containing segment of the non-combustion heating flavor inhaler 101 from the outside.
- FIG. 7(a) shows the state before the non-combustion heating flavor inhaler 101 is inserted into the heating device 127, and FIG. indicates the state of
- a heating device 127 shown in FIG. 7 includes a body 128 , a heater 129 , a metal tube 130 , a battery unit 131 and a control unit 132 .
- the body 128 has a cylindrical recess 133, which is the inner side surface of the recess 133 and corresponds to the tobacco-containing segment (mainly the first segment) of the non-combustion heating flavor inhaler 101 inserted into the recess 133.
- a heater 129 and a metal tube 130 are arranged at the position.
- the heater 129 can be a heater using electric resistance, and electric power is supplied from the battery unit 131 according to an instruction from the control unit 132 that performs temperature control, and the heater 129 is heated.
- the heat emitted from heater 129 is transmitted to the tobacco-containing segment (mainly the first segment) of non-combustion heating flavor inhaler 101 through metal tube 130 with high thermal conductivity.
- FIG. 7B schematically shows, there is a gap between the outer circumference of the non-combustion heating flavor inhaler 101 and the inner circumference of the metal pipe 130, but in reality, the heat is efficiently transferred. For this purpose, it is desirable that there is no gap between the outer circumference of the non-combustion heating type flavor inhaler 101 and the inner circumference of the metal tube 130 .
- the heating device 127 heats the tobacco-containing segment (mainly the first segment) of the non-combustion heating flavor inhaler 101 from the outside, but it may heat from the inside. In the case of heating from the inside, it is preferable to use a rigid plate-like, blade-like, or column-like heater without using the metal tube 130 .
- a heater includes, for example, a ceramic heater in which molybdenum, tungsten, or the like is added to a ceramic substrate.
- the heater heats the entire side surface of the first columnar segment and heats a part of the side surface of the second columnar segment, or heats the second It is preferred to include a first perimeter heater that does not heat the segments.
- a first perimeter heater that does not heat the segments.
- the heater heats the entire side surface and the entire bottom surface of the first columnar segment, and heats at least one side surface of the second columnar segment. It is preferred to include a second perimeter heater that either heats the portion or does not heat the second segment.
- the second outer circumference heating heater heats the entire side surface and the entire bottom surface of the first columnar segment and heats the side surface of the second columnar segment, for example, like the heater 129 shown in FIG. can be heated.
- the heater 129 heats the side surface of the second segment in FIG. 8A, the second segment may not be heated. In this case, the second segment is heated by heat transfer or residual heat from the first segment.
- the heater heats the inside of the first columnar segment in the entire axial direction, and heats the inside of the second columnar segment in the axial direction. It preferably includes an internal heater that heats in a portion of or does not heat the second segment. With such a configuration, as in the above-described embodiment, the balance of each component supplied to the user can be made uniform from the first half to the second half of use.
- the internal heater for example, like the heater 129 shown in FIG. 8B, may heat the inside of the first columnar segment along the entire axial direction and not heat the second columnar segment. can. Although the heater 129 does not heat the second segment in FIG. 8B, the inside of the second segment may be partially heated in the axial direction.
- the heater may be a combination of the first or second outer peripheral heater and the inner heater.
- the heaters include, for example, a heater 129 shown in FIG. 8C, an outer peripheral heater for heating the entire side surfaces of the first and second columnar segments, and a heater for heating the inside of the first columnar segment in the axial direction. It may be combined with an internal heater that heats the entire area and does not heat the second segment of the column.
- the heating temperature of the heater is preferably 200-350°C. Note that the heating temperature indicates the temperature of the heater.
- This embodiment includes the following [1b] to [7b]. According to this embodiment, it is possible to provide a non-combustion heating flavor inhaler and a non-combustion heating flavor inhalation system in which the delivery amount of components generated by heating is improved.
- a rod-shaped non-combustion heating flavor inhaler comprising a tobacco-containing segment including the tobacco sheet for a non-combustion heating flavor inhaler according to the present embodiment, and a mouthpiece segment, the mouthpiece segment comprises a filter segment having a filter media;
- a non-combustion heating flavor inhaler 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.
- [5b] The non-combustible according to any one of [1b] to [4b], wherein the airflow resistance in the longitudinal direction of the filter segment is 1.0 mmH 2 O/mm or more and 4.0 mmH 2 O/mm or less. Heated flavor suction device.
- a heating device comprising a heater, a battery unit serving as a power source for the heater, and a control unit for controlling the heater, and inserted in contact with the heater, [1b] to [6b] ] and a non-combustion heating flavor inhaler according to any one of the above.
- a non-combustion-heating flavor inhaler (also simply referred to as a "non-combustion-heating flavor inhaler") that is an embodiment of the present invention is a tobacco-containing tobacco sheet that includes the tobacco sheet for a non-combustion-heating flavor inhaler according to the present embodiment.
- a rod-shaped non-combustion heating flavor inhaler comprising a segment and a mouthpiece segment, wherein the mouthpiece segment comprises a filter segment having a filter media;
- FIG. An example of the non-combustion heating type flavor inhaler according to this embodiment is shown in FIG.
- the non-combustion heating type flavor inhaler will be described with reference to FIG.
- the stick-shaped non-combustion-heating flavor inhaler 210 shown in FIG. 9 is a stick-shaped non-combustion-heating flavor inhaler comprising a tobacco-containing segment 211, a mouthpiece segment 214, and a chipping paper 215 formed by wrapping them.
- the mouthpiece segment 214 includes a cooling segment 212 and a filter segment 213 containing filter media, and with respect to the axial direction (also referred to as the "longitudinal direction") of the non-combustion heated flavor inhaler 210,
- the cooling segment 212 is sandwiched adjacent to the tobacco-containing segment 211 and the filter segment 213, and the cooling segment 212 is concentrically provided with an aperture V in the circumferential direction.
- the opening V is a hole for facilitating the inflow of air from the outside by the suction of the user, and the inflow of air can lower the temperature of the components and air flowing in from the tobacco-containing segment 211 . .
- the components produced by heating such as the tobacco-containing segment 211, pass through the mouthpiece segment and into the user's mouth.
- the components generated by heating include flavor components derived from fragrances, nicotine and tar derived from tobacco leaves, and aerosol components derived from aerosol generating agents.
- the aerosol-generating agent is a base material for generating an aerosol.
- the non-combustion heating flavor inhaler 210 preferably has a columnar shape that satisfies a shape with an aspect ratio of 1 or more defined as follows.
- 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 side of the tobacco-containing segment), 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 longitudinal length h of the non-combustion-heating flavor inhaler 210 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 flavor inhaler 210 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 longitudinal direction of the non-combustion heating flavor inhaler is not particularly limited, but from the viewpoint of the amount of fragrance delivered. , usually 0.60: 1.40 to 1.40: 0.60, 0.80 to 1.20: 0.80 to 1.20, 0.85 to 1.15: 0.85 to 1.15 is preferred, 0.90-1.10: more preferably 0.90-1.10, 0.95-1.05: 0.95-1.05 More preferred.
- 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 flavor inhaler 210 is not particularly limited, but from the viewpoint of ease of inhalation, it is usually 8 mmH 2 O or more, preferably 10 mmH 2 O or more. , more preferably 12 mmH 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), for example, using a filter airflow resistance meter manufactured by Cerulean.
- the ventilation resistance is such that a predetermined air flow rate (17.5 cc) flows from one end surface (first end surface) to the other end surface (second end surface) in a state in which air does not permeate the side surfaces of the non-combustion heating flavor inhaler 210. /min) indicates 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 type flavor inhaler 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 non-combustion heating flavor inhaler is doubled.
- Mouthpiece segment 214 comprises a filter segment 213 having a filter media, provided that the filter media is composed of fibers having a Y-shaped circumferential cross-section and a single fiber denier of 8 or more and 12 or less. Not particularly limited, for example, as shown in FIG. can be configured to be sandwiched adjacent to the tobacco-containing segment 211 and the filter segment 213 .
- the filter segment 213 and cooling segment 212 are described in detail below.
- the filter segment 213 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.
- the filtering function is suppressed and the tobacco filling is reduced. Preventing falling is also one of the important functions.
- the shape of the filter segment 213 is not particularly limited, and a known shape can be adopted. Usually, it can be a columnar shape, and the following aspects can be used.
- the circumferential cross-sectional shape of the filter segment 213 is substantially circular, and the diameter of the circle can be changed as appropriate 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 213 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 213 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 medium can be appropriately adjusted so that the shape and dimensions of the filter segment 213 are within the above range, but the length of the filter medium 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 213 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 sucking.
- 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 213 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 .
- the relationship between the ventilation resistance of the filter segment 213 and the length of the filter segment 213 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 213 is doubled.
- the mode of the filter segment 213 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 213 can be manufactured by a known method. For example, when synthetic fibers such as cellulose acetate tow are used as the material of 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 213, 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 213 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 preferred.
- single fiber denier and total fiber denier are particularly preferred when the circumference of the mouthpiece segment 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), which is then dissolved in acetone using 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. A uniform crimp is applied by a crimping machine, and the ribbon-like flowing tow can be layered and packed while being twisted by a packing machine.
- the density of the filter medium 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, and 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 flavor capsules described later.
- flavoring agents include menthol, spearmint, peppermint, fenugreek, or clove, medium-chain triglycerides (MCT), etc.
- MCT medium-chain triglycerides
- 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 flavor inhaler, releases the liquid or substance (usually the flavorant) contained within the flavor capsule, and then The liquid or substance is transferred to the tobacco smoke during use of the flavor inhaler 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 213 may include 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 213 may further include a center hole segment having one or more hollows.
- 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 segment.
- 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-containing segment 211, the cooling segment 212, and the connected center hole segment and filter media may be connected by, for example, mouthpiece lining paper. These connections are made, for example, by applying glue such as vinyl acetate glue to the inner surface of the mouthpiece lining paper, putting in the tobacco-containing segment 211, the cooling segment 212, and the already connected center hole segment and filter material. can be connected with In addition, these may be divided into multiple times and connected with multiple lining papers.
- the cooling segment 212 is sandwiched adjacent to the tobacco-containing segment and the filter segment, and is generally a rod-shaped member provided with a cavity having a hollow (cavity) circumferential cross-section such as a cylinder.
- the cooling segment 212 may be circumferentially and concentrically provided with apertures V (also referred to in the technical field as "ventilation filters (Vf)").
- Vf also referred to in the technical field as "ventilation filters (Vf)"
- the number of hole groups may be one, or two or more.
- 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 type flavor inhaler 210 has a configuration in which the tobacco-containing segment 211, the cooling segment 212 and the filter segment 213 are wrapped with tipping paper 215, the tipping paper 215 is provided in the cooling segment 212. It is preferable that an opening be provided at a position immediately above the opening V provided.
- tip paper 215 having openings overlapping with the openings V may be prepared and wound. After fabricating the non-combustion heated flavor inhaler 210 using the cooling segment 212 without the apertures V, it is preferable to drill holes through the cooling segment 212 and the tipping paper 215 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 212 and the filter segment 213.
- 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 mouth end of the non-combustion heating type flavor inhaler to the cooling segment side.
- a region of 23.5 mm or more preferably a region of 24 mm or more, more preferably a region of 25 mm or more, and from the viewpoint of ensuring the cooling function, a region of 38 mm or less. , more preferably 36.5 mm or less, and even more preferably 33 mm or less.
- the region where the openings V are present has a cooling function.
- the region is preferably 2 mm or more, more preferably 3.5 mm or more, and 7 mm or more in the direction of the cooling segment. Further preferably, from the viewpoint of improving 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 aperture 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 212 is not particularly limited, and can 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 212 in the ventilation direction.
- the total surface area of cooling segment 212 is preferably 200 mm 2 /mm or greater, more preferably 250 mm 2 /mm or greater, while preferably 600 mm 2 /mm or less, and preferably 400 mm 2 /mm or less. It is more preferable to have
- cooling segment 212 desirably has a large total surface area in its internal structure.
- cooling segment 212 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 212 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 mode of the tobacco-containing segment 211 is not particularly limited as long as it includes the tobacco sheet for the non-combustion heating type flavor inhaler according to the present embodiment, but it may be a mode in which a tobacco filler containing a tobacco sheet is wrapped with wrapping paper. can.
- the tobacco fill may contain an aerosol-generating agent.
- the aerosol-generating agent is a substrate that generates an aerosol when heated, and is exemplified by glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof.
- the content of the aerosol-generating agent in the tobacco filling is not particularly limited, and is usually 5% by weight or more of 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-containing segment 211 may have a fitting portion with a heater or the like for heating the non-combustion heating type flavor inhaler.
- the tobacco-containing segment 211 which is formed by wrapping the tobacco filling with wrapping paper, preferably has a columnar shape.
- the aspect ratio represented by the height of is preferably 1 or more.
- the shape of the bottom surface is not limited, and may be a polygon, a polygon with rounded corners, a circle, an ellipse, etc.
- the width is the diameter when the bottom surface is circular, the major axis when the bottom surface is elliptical, the polygon or the polygon with rounded corners. Case is the diameter of the circumscribed circle or the major axis of the circumscribed ellipse.
- the tobacco filler constituting the tobacco-containing segment 211 has a height of about 10 to 70 mm and a width of about 4 to 9 mm.
- the longitudinal length of the tobacco-containing segment 211 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-containing segment 211 to the length h in the longitudinal direction of the non-combustion heating flavor inhaler 210 is usually 10% or more, 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. is more preferably 40% or less.
- the structure of the wrapping paper is not particularly limited, and it can be in a general form, and for example, it can be one in which pulp is the main component.
- pulp in addition to being made from wood pulp such as softwood pulp and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for wrapping paper for tobacco products, are mixed. and obtained by 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, soda salt cooking method, and the like.
- 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, and papermaking internal additives such as paper strength agents, as well as dyes, pH adjusters, Papermaking additives such as antifoam agents, pitch control agents, and 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 wrapping paper of the non-combustion heating type flavor inhaler may have a square or rectangular shape.
- 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 by the size of the finished tobacco-containing segment 211 .
- 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, and when the basis weight is more than 35 gsm and 45 gsm or less, the filler content is preferably 25% or more and 45% by weight. % or less.
- As a filler calcium carbonate, titanium dioxide, kaolin, and the like can be used, but from the viewpoint of enhancing flavor and whiteness, it is preferable to use calcium carbonate.
- 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 resins, melamine formaldehyde resins, 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 and its salts e.g. sodium salts
- polysaccharides such as pectin
- cellulose derivatives such as ethyl cellulose, methyl cellulose, carboxymethyl cellulose, nitrocellulose
- starch and derivatives thereof e.g. carboxymethyl starch, hydroxyalkyl starch and cationic starch.
- ether derivatives such as starch acetate, starch phosphate and ester derivatives such as starch octenylsuccinate).
- the configuration of the tipping paper 215 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 and hardwood pulp, non-wood pulp such as flax pulp, hemp pulp, sisal pulp, and esparto, which are generally used for cigarette paper, are mixed. and obtained by manufacturing. These pulps may be used alone or in combination of multiple types at any ratio.
- the tipping paper 215 may be composed of one sheet, or may be composed of a plurality of sheets or more.
- As the form of pulp chemical pulp, ground pulp, chemi-grand pulp, thermomechanical pulp, etc.
- the tip paper 215 may be manufactured by a manufacturing method described later, or may be a commercially available product.
- the shape of the tipping paper 215 is not particularly limited, and can be square or rectangular, for example.
- the basis weight of the tipping paper 215 is not particularly limited, it 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 215 is not particularly limited, it 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 CU) is cm 3 /(min ⁇ cm 2 ) under 1 kPa.
- the chipping paper 215 may contain fillers other than the above pulp, for example, metal carbonates such as calcium carbonate and magnesium carbonate, metal oxides such as titanium oxide, titanium dioxide and aluminum oxide, barium sulfate, metal sulfates such as calcium sulfate, metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc.; preferably contains These fillers may be used singly or in combination of two or more.
- metal carbonates such as calcium carbonate and magnesium carbonate
- metal oxides such as titanium oxide, titanium dioxide and aluminum oxide
- barium sulfate metal sulfates
- metal sulfates such as calcium sulfate
- metal sulfides such as zinc sulfide, quartz, kaolin, talc, diatomaceous earth, gypsum, etc.
- fillers may be used singly or in combination of two or more.
- the chipping paper 215 may be added with various auxiliary agents in addition to the pulp and filler described above, and may have, for example, 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 resins, melamine formaldehyde resins, 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 215 .
- 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 heating type flavor inhaler according to the present embodiment can be used in a non-combustion heating type flavor inhalation system described later, but can also be applied to cigarettes (cigarettes) accompanied by combustion.
- the method for manufacturing the non-combustion heating type flavor inhaler described above is not particularly limited, and a known method can be applied.
- it can be manufactured by winding up the tobacco-containing segment and the mouthpiece segment with tipping paper. .
- a non-combustion heating flavor inhalation system includes a heater, a battery unit serving as a power source for the heater, and the heater.
- a non-combustion heating flavor inhalation system comprising: a heating device having a control unit for controlling; and the non-combustion heating flavor inhaler inserted so as to be in contact with the heater.
- a mode of the non-combustion heating type flavor inhalation system it may be a mode in which the outer peripheral surface of the non-combustion heating type flavor inhaler 210 is heated as shown in FIG.
- Heating may be performed from the inside of the tobacco-containing segment 211 in the flavor inhaler 210 .
- the heating device 220 shown in FIGS. 10 and 11 is provided with an air introduction hole, it is not shown here.
- the non-combustion heating flavor suction system 230 will be described below with reference to FIG. Regarding the non-combustion heating type flavor inhaler 210 shown in FIGS. 10 and 11, the symbols representing the components shown in FIGS.
- the non-combustion heating flavor inhalation system 230 is used by inserting the above-described non-combustion heating flavor inhaler 210 into contact with the heater 221 arranged inside the heating device 220 .
- the heating device 220 has, for example, a battery unit 222 and a control unit 223 inside a resin frame 224 .
- the outer peripheral surface of the tobacco-containing segment 211 comes into contact with the heater 221 of the heating device 220, and eventually the entire outer peripheral surface of the tobacco-containing segment 211 and the outer peripheral surface of the tipping paper are brought into contact with each other. contacts the heater 221 .
- the heater 221 of the heating device 220 generates heat under the control of the control unit 223 . The heat is transmitted to the tobacco-containing segment 211 of the non-combustion-heating flavor inhaler 210, volatilizing the aerosol-generating agent, flavor component, and the like contained in the tobacco filling of the tobacco-containing segment 211.
- the heater 221 may be, for example, a sheet heater, a flat heater, or a cylindrical heater.
- a sheet-shaped heater is a flexible sheet-shaped heater, and includes, for example, a heater including a heat-resistant polymer film (about 20 ⁇ m to 225 ⁇ m thick) 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 that has a resistance circuit on the outer peripheral surface of a cylinder made of metal or the like and uses that portion as a heat generating portion. . Moreover, 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 type flavor inhaler 210 as shown in FIG.
- the above-described sheet heater, flat plate heater, and cylindrical heater can be used.
- the longitudinal length of the heater 221 can be within a range of L ⁇ 5.0 mm, where L mm is the longitudinal length of the tobacco-containing segment 211 .
- the length of the heater 221 in the longitudinal direction is L mm or more from the viewpoint of aerosol delivery, that is, the length of the heater 221 in the longitudinal direction is sufficient to sufficiently conduct heat to the tobacco-containing segment 211 and sufficiently volatilize the aerosol-generating agent, flavor component, etc. contained in the tobacco filling.
- L + 0.5 mm or less From the viewpoint of suppressing the generation of components that have an undesirable effect on flavor and the like, L + 0.5 mm or less, L + 1.0 mm or less, L + 1.5 mm or less, L + 2.0 mm or less, L + 2.5 mm or less, L + 3.5 mm or less. It is preferably 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 flavor inhaler 210 by the heater 221 can be set in advance for each non-combustion heating flavor inhalation system 230 .
- preheating is performed for a certain period of time, so that the outer circumference of the portion of the non-combustion heating flavor inhaler 210 inserted in the heating device 220
- X ° C.
- the above X (° C.) is preferably 80° C. or higher and 400° C.
- the openings V provided in the cooling segment 212 are arranged as shown in FIG. It is preferable that the segment 212 is located closer to the mouthpiece end than the mouthpiece end portion of the region in contact with the heating device 220 (the location indicated by the arrow X in the figure).
- the insertion port of the heating device 220 for the non-combustion heating flavor inhaler 210 may be tapered as shown in FIG. 2, the end portion of the area that contacts the heating device 220 on the side of the mouth end is the position indicated by the arrow Y in the drawing. 12 and 13, the symbols representing the components shown in FIGS. 9 to 11 are partially omitted.
- This embodiment includes the following [1c] to [13c]. According to this embodiment, it is possible to provide a non-combustion heating type flavor inhaler provided with tobacco-containing segments that are well balanced between breakage suppression and heat transfer efficiency.
- a tobacco-containing segment including the tobacco sheet for a non-combustion heating type flavor inhaler according to the present embodiment; an adjacent member adjacent to the tobacco-containing segment; a wrapping material for wrapping the tobacco-containing segment, or a wrapping material for wrapping the tobacco-containing segment and an adjacent member;
- a non-combustion heating flavor inhaler comprising The wrapping material has a high heat transfer portion having a higher heat transfer property than the member to be wrapped in contact therewith, A non-combustion heated flavor inhaler, wherein the high heat transfer portion wraps around the downstream end of the tobacco-containing segment.
- the high heat transfer portion is made of a material that satisfies the heat transfer characteristics of formula (1).
- Q dT ⁇ 330 (W/°C) (1)
- Q dT is a heat transfer coefficient defined by the following formula calculated based on a cylindrical sample
- Q dT K ⁇ 2 ⁇ L/ln(r 2 /r 1 )
- K Thermal conductivity coefficient (W/m/°C)
- L axial length of sample (mm)
- r 2 sample outer radius (mm)
- r 1 sample inner radius (mm)
- the non-combustion heating flavor inhaler according to any one of [1c] to [4c].
- the vicinity of the downstream end of the tobacco-containing segment is a region starting from the downstream end and ending at a position 5 to 50% of the axial length of the tobacco-containing segment, [1c] to [6c]. ]
- the non-combustion heating type flavor inhaler according to any one of
- the vicinity of the upstream end of the adjacent member is a region starting from the upstream end and ending at a position 1 to 15% of the axial length of the adjacent member, [2c], [3c], Or the non-combustion heating type flavor inhaler according to any one of [5c] to [7c].
- FIG. 18 shows one aspect of the non-combustion heating flavor inhaler of the present embodiment.
- 310 is a non-combustion heating type flavor inhaler
- 301 is a tobacco-containing segment
- 303 is an adjacent member (preferably a cooling member) adjacent to the tobacco-containing segment
- 305 is a mouthpiece
- 352 is a filter
- 354 is a center hole filter
- 307 is tip paper
- 309 is a wrapping material
- V is ventilation. Since the embodiment shown in FIG. 18 directly heats the tobacco sheet, it is also called a non-combustion direct heating flavor inhaler.
- the tobacco-containing segment includes the tobacco sheet according to the present embodiment, and is a substantially cylindrical member for generating the flavor and taste components contained in the tobacco sheet.
- the tobacco-containing segment comprises a tobacco sheet and a wrapping paper (wrapper) wrapped around it.
- the shape of the tobacco sheet to be filled in the wrapping paper is not limited, and examples thereof include the sheet itself, or the sheet cut into widths of 0.8 to 1.2 mm.
- the sheet may be gathered, folded, or rolled into a wrapping paper without being cut to form a tobacco-containing segment.
- the sheet may be cut into strips, and these strips may be packed into the wrapping paper concentrically or so that the longitudinal direction of the strips is parallel to the longitudinal direction of the tobacco-containing segment to form the tobacco-containing segment.
- the packing density of the tobacco sheet is not particularly limited, but is usually 250 mg/cm 3 or more, preferably 320 mg/cm 3 or more, from the viewpoint of ensuring the characteristics of the non-combustion heating type flavor inhaler and imparting good smoking taste. be.
- the upper limit is usually 800 mg/cm 3 or less, preferably 600 mg/cm 3 or less.
- the length of the tobacco-containing segment 301 is not limited, it is preferably 15-25 mm.
- the diameter is not limited, it is preferably 6 to 8 mm.
- the tobacco sheet may generate steam as it is heated. Although the heating temperature is not limited, it is about 30 to 350.degree. Aerosol sources such as glycerin, propylene glycol, polyols such as 1,3-butanediol, and the like may be added to the tobacco sheet to facilitate aerosol generation. 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 tobacco sheet. In addition, known perfumes and the like may be added to the tobacco sheet.
- Aerosol sources such as glycerin, propylene glycol, polyols such as 1,3-butanediol, and the like may be added to the tobacco sheet to facilitate aerosol generation.
- 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 tobacco sheet.
- known perfumes and the like may be added to the tobacco sheet.
- Adjacent member 303 is a member adjacent to the downstream side of tobacco-containing segment 301 .
- downstream refers to the direction toward the mouthpiece end.
- Adjacent members include a cooling member for cooling the aerosol, a support member for increasing the strength of the entire device, or a mouthpiece to be described later.
- adjacent member 303 is preferably a cooling member.
- the cooling member is a member for promoting aerosolization by, for example, cooling the flavor components and vapor generated in the tobacco-containing segment 301 .
- the cooling member may be a hollow paper tube.
- the paper tube is preferably made of cardboard, which is more rigid than the wrapping paper or chip paper. Ventilation V (opening) may be provided in the paper tube. A plurality of ventilations are preferably provided along the circumference of the paper tube.
- the cooling member may also be filled with gathered sheets to enhance heat exchange efficiency. Although the dimensions of the cooling member are not limited, it preferably has a length of 15 to 25 mm and a diameter of 5.5 to 7.5 mm.
- the wrapping material wraps the tobacco-containing segment or the tobacco-containing segment and the adjacent member.
- the wrapping material includes a high heat transfer portion having higher heat transfer than the member to be wrapped that abuts thereon.
- the non-combustion-heating flavor inhaler having this configuration has an excellent balance between suppression of breakage and heat transfer efficiency, and increases the total amount of smoke.
- a material for forming the high heat transfer portion a material having a heat conduction coefficient of 50 (W/m/°C) or more can be used. Specific examples of such materials include aluminum, iron, stainless steel, zinc, gold, or silver.
- the heat transfer from the wrapping material to the tobacco-containing segment varies depending on the heat transfer coefficient of the material used, as well as the axial length and thickness of the high heat transfer portion, or the diameter of the non-combustion heating flavor inhaler. . Therefore, the material forming the high heat transfer portion may preferably be selected so as to satisfy the heat transfer characteristics of formula (1).
- Q dT ⁇ 330 (W/°C) (1)
- QdT is a heat transfer coefficient defined by the following formula calculated based on the cylindrical sample shown in FIG.
- FIG. 21 is a cylindrical sample with inner radius r 1 , outer radius r 2 and height L, with inner wall temperature T 1 and outer wall temperature T 2 .
- the heat transfer rate Q(W) is given by equation (i) from Fourier's law.
- K is the thermal conductivity coefficient (W/m/°C)
- Am is the logarithmic mean area (m 2 ).
- Equation (ii) is obtained by transforming this, and integrating both sides yields equation (iii), which can be subsequently transformed into equation (1). That is, QdT is a parameter obtained by dividing the heat transfer rate Q(W) obtained in the model of FIG. 21 by the temperature difference between the inner wall and the outer wall.
- QdT is preferably 650 (W/°C) or more, or 850 (W/°C) or more.
- the high heat transfer portion is selected from the group consisting of aluminum, stainless steel, gold, silver, and combinations thereof.
- the wrapping material may be composed only of the high heat transfer portion, or may be provided with other materials.
- the wrapping material may be a laminate (bonded body) in which metal particles or metal sheets are supported on paper or polymer sheets.
- the wrapping material may be a composite in which particles of highly heat-conductive metal, ceramic, or the like are dispersed in a matrix of paper, polymer, or the like.
- the wrapping material may be a sheet in which a sheet of paper, polymer, or the like and a sheet of highly heat-conductive metal, ceramic, or the like are joined at or near the edge.
- the high heat transfer portion of the wrapping material 309 wraps the vicinity of the downstream end of the tobacco-containing segment 301 .
- the downstream end of the tobacco-containing segment 301 be the origin 0
- the upstream end of the tobacco-containing segment 301 be X
- the downstream end of the adjacent member 303 be -Y.
- the vicinity of the downstream end of the tobacco-containing segment 301 is preferably a region starting from the origin 0 and ending at 0.05X to 0.5X, more preferably starting at the origin 0 and ranging from 0.05X to 0.2X. is the end point.
- the high heat transfer portion also winds the joint portion between the tobacco-containing segment 301 and the adjacent member 303, that is, winds the vicinity of the upstream end of the adjacent member 303 as well.
- the vicinity of the upstream end of the adjacent member 303 is preferably a region starting from the origin 0 and ending at ⁇ 0.01Y to ⁇ 0.5Y, more preferably ending at ⁇ 0.01Y to ⁇ 0.15Y. This is the area where Furthermore, from the viewpoint of increasing the thermal conductivity, the high thermal conductivity portion may wind up to the most upstream end of the tobacco-containing segment 301 . Alternatively, as shown in FIG.
- the wrapping material 309 and the tipping paper 307 may be joined together at their end surfaces to form a tipping paper. Furthermore, tipping paper 307 may be placed outside the wrapping material 309 as shown in FIG. 18(3). As described above, the wrapping material 309 may be composed only of the high heat transfer portion or may be provided with other materials. A mode in which the material 309 is composed only of the high heat transfer portion is shown.
- FIG. 20A shows a specific embodiment in which the wrapping material 309 extends from the tobacco-containing segment 301 to the adjacent member 303.
- FIG. Tipping paper 307 does not wrap tobacco-containing segment 301 in this embodiment.
- 308 is the second wrapping paper, preferably made of paper.
- FIG. 20A(1) shows a mode in which the wrapping material 309 and the second wrapping paper 308 are joined together and wrapped from the tip of the tobacco-containing segment 301 to the upstream end of the adjacent member 303 .
- the wrapping material 309 wraps from the downstream end of the tobacco-containing segment 301 to the upstream end of the adjacent member 303
- the second wrapping paper 308 wraps the tobacco-containing segment 301, and A part of it is present in the outer peripheral portion of the wrapping material 309 .
- FIG. 20A(3) shows that the second wrapping paper 308 wraps the tobacco-containing segment 301, and the wrapping material 309 wraps the downstream end of the tobacco-containing segment 301 from above the second wrapping paper 308, and is adjacent to it. Extending to the upstream end of member 303 is shown.
- FIG. 20B shows a specific embodiment in which the wrapping material 309 wraps the downstream end of the tobacco-containing segment 301.
- FIG. Tipping paper 307 wraps around the downstream end of tobacco-containing segment 301 in this embodiment.
- FIG. 20B(1) shows a manner in which the wrapping material 309 and the second wrapping paper 308 are joined together to form a single body, and the tobacco-containing segment 301 is wrapped.
- FIG. 20B(2) shows a mode in which the wrapping material 309 wraps the downstream end of the tobacco-containing segment 301, and the second wrapping paper 308 wraps the tobacco-containing segment 301 over the wrapping material 309.
- FIG. FIG. 20B(3) shows a mode in which the second wrapping paper 308 wraps the tobacco-containing segment 301, and the wrapping material 309 wraps the downstream end of the tobacco-containing segment 301 over the second wrapping paper.
- FIG. 20C shows a specific embodiment in which the wrapping material 309 is covered with tipping paper 307.
- the wrapping material 309 is attached to a portion of the inner peripheral surface of the tipping paper 307 .
- FIG. 20C(1) shows a mode in which the wrapping material 309 wraps the downstream end of the tobacco-containing segment 301 wrapped with the second wrapping paper 308 and the upstream end of the adjacent member 303 .
- the upstream end of tipping paper 307 is at the same position as the upstream end of wrapping material 309 .
- FIG. 20C(2) shows a mode in which the upstream end of the tipping paper 307 extends to the upstream end of the tobacco-containing segment 301 in FIG. 20C(1).
- FIG. 20C(3) shows a mode in which the tipping paper 307 and wrapping material 309 extend to the upstream end of the tobacco-containing segment 301 in FIG. 20C(1).
- the high heat transfer portion of the wrapping material 309 is preferably present in the portion of the tobacco-containing segment 301 heated by the heater.
- the axial length of the high heat transfer portion is about 3 to 10 mm.
- Mouthpiece is a member that constitutes the mouth end.
- mouthpiece 305 includes filter 352 and center hole filter 354 .
- Well-known filters can be used as the filter 352 and the center hole filter 354 .
- Non-combustion Heating Flavor Inhalation System A combination of a non-combustion heating flavor inhaler and a heating unit is also called a non-combustion heating flavor inhalation system.
- FIG. 19 shows one aspect of the system.
- 300 is a non-combustion heating type flavor inhalation system
- 310 is a non-combustion heating type flavor inhaler
- 330 is a heating unit provided with a heater.
- the heating unit includes a heater, a housing, a power supply, and the like.
- the heater preferably electrically heats the tobacco-containing segment 301 .
- the shape of the heater is not limited, and it is arranged around the tobacco-containing segment 301 .
- the heater may be, for example, a sheet heater, a flat heater, a cylindrical heater, or a needle heater.
- a sheet-shaped heater is a flexible sheet-shaped heater, and includes, for example, a heater including a heat-resistant polymer film (about 20 to 225 ⁇ m thick) such as polyimide.
- a flat heater is a rigid flat heater (thickness of about 200 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 tubular heater is a hollow or solid tubular heater, and includes, for example, a heater having a resistance circuit on the outer peripheral surface and using the relevant portion as a heat generating portion.
- the cross-sectional shape of the tubular heater may be a circle, an ellipse, a polygon, a polygon with rounded corners, or the like.
- Tobacco lamina (leaf tobacco) was dry pulverized with a Hosokawa Micron ACM machine to obtain tobacco powder.
- Mastersizer (trade name, manufactured by Malvern Panalytical Division, Spectris Co., Ltd.) is used to measure the cumulative 90% particle diameter (D90) in the volume-based particle size distribution measured by the dry laser diffraction method. As a result, it was 200 ⁇ m.
- a tobacco sheet was produced by a rolling method. Specifically, 77 parts by mass of the tobacco raw material, 12 parts by mass of glycerin as an aerosol generating agent, 1 part by mass of carboxymethyl cellulose as a molding agent, and fibrous pulp as a fibrous material (canfor pulp) 10 parts by mass of dry defibrated product) were mixed and kneaded by an extruder. The kneaded product was formed into a sheet by two pairs of metal rolls and dried in a hot air circulating oven at 80° C. to obtain a tobacco sheet. The tobacco sheet was shredded to a size of 0.8 mm ⁇ 9.5 mm using a shredder.
- the swelling properties of the shredded tobacco sheets were measured. Specifically, the cut tobacco sheets were left in a conditioning room at 22° C. and 60% for 48 hours, and then measured for swelling with DD-60A (trade name, manufactured by Borgwald). The measurement was carried out by placing 15 g of cut tobacco sheets in a cylindrical container having an inner diameter of 60 mm and compressing the container with a load of 3 kg for 30 seconds to determine the volume. Table 4 shows the results. In addition, in Table 4, the swelling property is shown as an increase rate (%) of the swelling property with respect to the reference value of the swelling property value of Comparative Example 1 described later.
- Tobacco powder was prepared in the same manner as in Example 1. Using the tobacco powder as a tobacco raw material, a tobacco sheet was produced by a rolling method. Specifically, 87 parts by mass of the tobacco raw material, 12 parts by mass of glycerin as an aerosol generator, and 1 part by mass of carboxymethyl cellulose as a molding agent were mixed and kneaded by an extruder. The kneaded product was formed into a sheet by two pairs of metal rolls and dried in a hot air circulating oven at 80° C. to obtain a tobacco sheet. The tobacco sheet was shredded to a size of 0.8 mm ⁇ 9.5 mm using a shredder. The swelling properties of the shredded tobacco sheets were measured in the same manner as in Example 1. Table 4 shows the results.
- Example 1 which is the tobacco sheet according to the present embodiment, has improved swelling properties compared to the tobacco sheet of Comparative Example 1, which does not contain a fibrous material.
- Example 1 the tobacco sheet was produced by the rolling method, but when the tobacco sheet was similarly produced by the casting method, the swelling property was improved.
- Tobacco fillers were prepared by mixing 15 g/100 g of glycerin and 4 g/100 g of propylene glycol 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-containing segments per level were stored in closed plastic containers. The stored tobacco-containing segments were cut into 20 mm lengths.
- a tobacco-containing segment a paper tube with a length of 20 mm, a center hole with 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”).
- Reference Example 2b A perfume capsule containing menthol (a spherical shape with a diameter of 3.5 mm. The same applies to the perfume capsules in other reference 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 flavor inhaler of Reference Example 2b was produced in the same manner as the non-combustion heating flavor inhaler of Reference Example 1b, except that the length of the filter medium was changed from 8 mm to 12 mm.
- the density of the filter segment of the non-combustion heating type flavor inhaler (the density without the flavor capsule), hardness, and ventilation resistance in the longitudinal direction are 0.122 g/cm 3 , 88%, and 1.93 mmH 2 , respectively. O/mm.
- the parameters related to the filter segment were evaluated without crushing the perfume capsule. This is the same for other reference examples and comparative examples using perfume capsules.
- Reference Example 7b 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 type flavor inhaler of Reference Example 7b was produced in the same manner as the non-combustion heating type flavor inhaler of Reference Example 1b except for the above.
- the density of the filter segment of the non-combustion heating type flavor inhaler (the density without the flavor capsule), hardness, and ventilation resistance in the longitudinal direction are 0.122 g/cm 3 , 91%, and 2.48 mmH 2 , respectively. O/mm.
- Table 5 summarizes the manufacturing conditions and characteristics of the non-combustion heating type flavor inhalers in each of the reference examples and comparative examples described above.
- 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 end of the mouth end side of the region where the non-combustion-heating flavor inhaler and the 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 Reference Examples 1b to 6b and Comparative Example 1b, and 10 times for Reference Examples 7b and 8b and Comparative Examples 2b and 3b.
- the above evaluation was performed after crushing the flavor capsules.
- the non-combustion heating flavor inhaler having a single fiber denier of 8 or more and 12 or less, regardless of the presence or absence of the addition of flavor capsules to the filter medium and the presence or absence of the addition of menthol.
- Aluminum foil A1 The axial length of the non-combustion heating flavor inhaler is 15 mm and the thickness is 30 ⁇ m
- Aluminum foil A2 The axial length of the non-combustion heating flavor inhaler is 22 mm and the thickness is 30 ⁇ m
- Laminated paper AP Laminate of a non-combustion heating flavor inhaler with an axial length of 15 mm and a thickness of 50 ⁇ m and an aluminum foil with a thickness of 15 ⁇ m laminated Non-combustion heating flavor using each wrapping material The aspirator was wrapped. Table 8 shows the position of the upstream end of the wrapping material relative to the upstream end of the non-combustion heating flavor inhaler.
- the tobacco cut side end of the non-combustion heating flavor inhaler was inserted into the heating device shown in FIG.
- the tobacco-containing segment was heated to 295° C.
- part of the tobacco-containing segment 301 was heated by the heater.
- it was subjected to a smoking test using a smoking machine. Specifically, using an automatic smoking device (LM-1 manufactured by Borgwaldt KC Inc.), the sample was subjected to the conditions of smoke absorption capacity of 27.5 ml / sec, smoke absorption time of 2 seconds / puff, smoke absorption frequency of 2 puffs / min, 8 puffs automatic smoking was performed.
- LM-1 manufactured by Borgwaldt KC Inc.
- Example 1c A non-combustion heating flavor inhaler was prepared in the same manner as in Reference Example 1c, except that the wrapping material was not wrapped. Before being subjected to the smoking test, the flavor inhaler was subjected to a rupture test in the same manner as in Reference Example 1c. Furthermore, the same non-combustion heating flavor inhaler as in Reference Example 1c was prepared. The flavor inhaler without the wrapping material was subjected to a smoking test in the same manner as in Reference Example 1c, and then subjected to a rupture test. Table 8 shows the results.
- Comparative Example 1c From the results of Comparative Example 1c, it is clear that the tobacco-containing segment before heating does not break and has resistance to breakage, but the tobacco-containing segment after heating breaks with a small force. On the other hand, with the force (1.61 N) required to break the tobacco-containing segment after heating in Comparative Example 1c, the tobacco-containing segment after heating in Reference Example 1c was not broken. That is, the tobacco-containing segment of Reference Example 1c required a considerably large force to break.
- the average distance is the average moving distance of the plunger until the sample breaks, and is an index of the tenacity that the sample bends and does not break easily. Comparing Reference Example 1c and Comparative Example 1c, Reference Example 1c shows higher values for both the average distance and the average load. From this, it is clear that the tobacco-containing segment of Reference Example 1c is sufficiently effective in suppressing breakage and folding.
- a smoking test was conducted using an automatic smoking device under the above conditions, and the amount of smoke per puff was measured.
- the heating temperature was 295°C.
- the light transmittance of smoke exhaled from a smoking machine without passing through a filter was detected using a photosensor to measure the amount of smoke.
- a general method for measuring the amount of smoke is a collection method in which smoke components are collected in a glass fiber filter for each puff and weighed.
- this method requires relatively complicated operations, and it is difficult to perform rapid measurements in real time. Therefore, in this embodiment, a measurement system using a photosensor is newly constructed and used.
- Reference Example 2c A non-combustion heated flavor inhaler having the same wrapping material as in Reference Example 1c was prepared. For each flavor inhaler, the amount of smoke was measured as described above. The voltage value from the photosensor reflected the smoke density and could be recorded in real time by a data logger. The amount of smoke was defined as the difference between the maximum voltage value in one puff and the baseline. The results are shown in FIG. A voltage value difference of 0.05 V is a level at which panelists can appropriately recognize a difference in smoke amount. In addition, in order to statistically verify the variation in the data, the standard deviation was calculated for each puff value of the comparative example and the reference example, and the average value was obtained. As a result, the average value was 0.04 V, and it was confirmed that each reference example differs from the comparative example, especially after 3 puffs.
- the heat from the heater was sufficiently transmitted to the tobacco-containing segment, so the effect of increasing the total amount of smoke was recognized.
- the tobacco-containing segment using the wrapping material A2 showed a remarkable increase in smoke amount and small attenuation. That is, the tobacco-containing segment was able to achieve an increase in total smoke volume. It is presumed that this is because the wrapping material of A2 can provide a sufficient amount of heat to the slices, so that even the slices located away from the heater can be effectively heated.
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Abstract
Description
前記たばこ含有セグメントが、エアロゾル発生剤を含む第一のセグメントと、前記非燃焼加熱型香味吸引器用たばこシートを含む第二のセグメントと、を含み、
前記マウスピースセグメントが、冷却セグメントと、フィルターセグメントと、を含む、[14]に記載の非燃焼加熱型香味吸引器。
前記マウスピースセグメントが、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、[14]に記載の非燃焼加熱型香味吸引器。
前記たばこ含有セグメントに隣接する隣接部材と、
前記たばこ含有セグメントを巻包する巻包材、または前記たばこ含有セグメントと前記隣接部材とを巻包する巻包材と、
をさらに備え、
前記巻包材が、当接する被巻装部材よりも高い伝熱性を有する高伝熱部を有し、
当該高伝熱部が、たばこ含有セグメントの下流端近傍を巻包している、[14]に記載の非燃焼加熱型香味吸引器。
前記たばこ含有セグメントを加熱する加熱装置と、
を備える非燃焼加熱型香味吸引システム。
本実施形態に係る非燃焼加熱型香味吸引器用たばこシート(以下、「たばこシート」ともいう。)はファイバー状材料を含む。本実施形態に係るたばこシートはファイバー状材料を含むため、嵩高く、高い膨嵩性を有する。そのため、本実施形態に係るたばこシートを用いることでたばこ含有セグメントの総熱容量を低減することができ、たばこ含有セグメントに充填されたたばこシートをエアロゾル生成に十分に寄与させることができる。また、本実施形態に係るたばこシートはたばこ原料やエアロゾル発生剤、成型剤をさらに含むことが好ましく、これらの配合割合を所定の範囲内とすることで、たばこシートの膨嵩性がより向上する。
本実施形態に係るたばこシートに含まれるファイバー状材料としては、繊維のようなファイバー形状を有する材料であれば特に限定されない。ファイバー状材料としては、例えば、ファイバー状パルプ、ファイバー状たばこ材料、ファイバー状合成セルロース等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。これらの中でも、繊維剛性の観点から、ファイバー状材料としてはファイバー状パルプが好ましい。
前記ファイバー状材料がファイバー状たばこ材料以外である場合、本実施形態に係るたばこシートは、さらにたばこ原料を含むことができる。たばこ原料としてはたばこ成分が含まれるものであれば特に限定されないが、例えばたばこ粉末やたばこ抽出物が挙げられる。たばこ粉末としては、例えば葉たばこ、中骨、残幹等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。これらを所定の大きさに裁刻することで、たばこ粉末として使用することができる。たばこ粉末の大きさとしては、乾式レーザー回折法により測定される体積基準の粒度分布における累積90%粒子径(D90)が200μm以上であることが、更なる膨嵩性向上の観点から好ましい。たばこ抽出物としては、例えば葉たばこを粗砕し、これを水等の溶媒と混合・攪拌することで葉たばこから水溶性成分を抽出し、得られた水抽出物を減圧乾燥して濃縮することで得られるたばこ抽出物が挙げられる。
前記ファイバー状材料がファイバー状合成セルロース等のファイバー状成型剤以外である場合、本実施形態に係るたばこシートは、形状担保の観点から、さらに成型剤を含むことが好ましい。成型剤としては、例えば多糖類、タンパク、合成ポリマー等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。多糖類としては、例えばセルロース誘導体、天然由来の多糖類が挙げられる。
本実施形態に係るたばこシートは、加熱時の煙量増加の観点から、さらにエアロゾル発生剤を含むことが好ましい。エアロゾル発生剤としては、例えばグリセリン、プロピレングリコール、1,3-ブタンジオール等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
前記ファイバー状材料がファイバー状パルプ等のファイバー状補強剤以外である場合、本実施形態に係るたばこシートは、更なる物性向上の観点から、さらに補強剤を含むことができる。補強剤としては、例えばパルプ、ペクチン懸濁水など乾燥すると膜を形成する表面コーティング機能をもった液状物質等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係るたばこシートは、品質保持の観点から、さらに保湿剤を含むことができる。保湿剤としては、例えばソルビトール、エリスリトール、キシリトール、マルチトール、ラクチトール、マンニトール、還元麦芽糖水飴等の糖アルコール等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係るたばこシートは、前記ファイバー状材料、前記たばこ原料、前記成型剤、前記エアロゾル発生剤、前記補強剤、前記保湿剤以外にも、必要に応じて香料、呈味料等の香味料、着色剤、湿潤剤、保存料、無機物質等の希釈剤等を含むことができる。
本実施形態に係るたばこシートの膨嵩性は、190cc/100g以上であることが好ましい。該膨嵩性が190cc/100g以上であることにより、非燃焼加熱型香味吸引器のたばこ含有セグメントの総熱容量を十分に低減することができ、たばこ含有セグメントに充填されたたばこシートがエアロゾル生成により寄与できるようになる。該膨嵩性は210cc/100g以上であることがより好ましく、230cc/100g以上であることがさらに好ましい。該膨嵩性の範囲の上限は特に限定されないが、例えば800cc/100g以下であることができる。なお、該膨嵩性は、たばこシートを0.8mm×9.5mmのサイズに裁刻し、22℃、60%の調和室内で48時間存置した後、DD-60A(商品名、ボルグワルド社製)にて測定される値である。測定は、裁刻されたたばこシート15gを内径60mmの円筒形容器に入れ、3kg荷重で30秒圧縮した時の容積を求めることで行われる。
本実施形態において「たばこシート」とは、たばこシートを構成する成分がシート形状に成形されたものである。ここで「シート」とは、略平行な1対の主面、及び側面を有する形状をいう。たばこシートの長さ及び幅は、特段制限されることはなく、充填する態様に合わせて適宜調整できる。たばこシートの厚さは、特に限定されないが、伝熱効率と強度の兼ね合いから、100~1000μmが好ましく、150~600μmがより好ましい。
本実施形態に係るたばこシートは、例えば圧延法、キャスト法等の公知の方法で製造することができる。このような方法で製造された各種たばこシートについては、「たばこの事典、たばこ総合研究センター、2009.3.31」に詳細が開示されている。
圧延法によりたばこシートを製造する方法としては、例えば、以下の工程を含む方法を挙げることができる。
(1)水、たばこ粉末、エアロゾル発生剤、成型剤、及びファイバー状パルプを混合して混合物を得る工程。
(2)当該混合物を圧延ローラーに投入して圧延する工程。
(3)圧延ローラー上の圧延成形品をドクターナイフで剥離し、ネットコンベアーに移送し、乾燥機で乾燥する工程。
この方法でたばこシートを製造する場合、目的に応じて、各圧延ローラーの表面を加温又は冷却してもよく、各圧延ローラーの回転数を調整してもよい。また、各圧延ローラーの間隔を調整することで、所望の坪量のたばこシートを得ることができる。
キャスト法によりたばこシートを製造する方法としては、例えば、以下の工程を含む方法を挙げることができる。
(1)水、たばこ粉末、エアロゾル発生剤、成型剤、及びファイバー状パルプを混合して混合物を得る工程。
(2)当該混合物を薄く延ばして(キャストして)乾燥し、たばこシートとする工程。
この方法でたばこシートを製造する場合、水、たばこ粉末、エアロゾル発生剤、成型剤、及びファイバー状パルプを混合したスラリーに対して紫外線照射もしくはX線照射することで、ニトロソアミン等の一部の成分を除去する工程を加えてもよい。
本実施形態に係る非燃焼加熱型香味吸引器は、本実施形態に係るたばこシートを含むたばこ含有セグメントを備える。本実施形態に係る非燃焼加熱型香味吸引器は、本実施形態に係る膨嵩性の高いたばこシートが充填されたたばこ含有セグメントを備えるため、たばこ含有セグメントの総熱容量を十分に低減することができ、たばこ含有セグメントに充填されたたばこシートがエアロゾル生成により寄与できるようになる。
たばこ含有セグメント2は、本実施形態に係るたばこシートが巻紙(以下、「ラッパー」ともいう)内に充填されている。たばこシートを巻紙内に充填する方法は特に限定されないが、例えばたばこシートをラッパーで包んでもよく、筒状のラッパー内にたばこシートを充填してもよい。たばこシートの形状が矩形状のように長手方向を有する場合、たばこシートは該長手方向がラッパー内でそれぞれ不特定の方向となるように充填されていてもよく、たばこ含有セグメント2の軸方向又は該軸方向に対して垂直な方向となるように整列させて充填されていてもよい。
図1に示されるように、冷却セグメント3は筒状部材7で構成される態様を挙げることができる。筒状部材7は例えば厚紙を円筒状に加工した紙管であってもよい。
センターホールセグメントは1つまたは複数の中空部を有する充填層と、該充填層を覆うインナープラグラッパー(内側巻紙)とで構成される。例えば、図1に示されるように、センターホールセグメント4は、中空部を有する第二の充填層9と、第二の充填層9を覆う第二のインナープラグラッパー10とで構成される。センターホールセグメント4は、マウスピースセグメント6の強度を高める機能を有する。第二の充填層9は、例えば酢酸セルロース繊維が高密度で充填されトリアセチンを含む可塑剤が酢酸セルロース質量に対して、6質量%以上、20質量%以下添加されて硬化された内径φ1.0mm以上、φ5.0mm以下のロッドとすることができる。第二の充填層9は繊維の充填密度が高いため、吸引時は、空気やエアロゾルは中空部のみを流れることになり、第二の充填層9内はほとんど流れない。センターホールセグメント4内部の第二の充填層9が繊維充填層であることから、使用時の外側からの触り心地は、使用者に違和感を生じさせることが少ない。なお、センターホールセグメント4が第二のインナープラグラッパー10を持たず、熱成型によってその形が保たれていてもよい。
フィルターセグメント5の構成は特に限定されないが、単数または複数の充填層から構成されてよい。充填層の外側は一枚または複数枚の巻紙で巻装されてよい。フィルターセグメント5のセグメント当たりの通気抵抗は、フィルターセグメント5に充填される充填物の量、材料等により適宜変更することができる。例えば、充填物が酢酸セルロース繊維である場合、フィルターセグメント5に充填される酢酸セルロース繊維の量を増加させれば、通気抵抗を増加させることができる。充填物が酢酸セルロース繊維である場合、酢酸セルロース繊維の充填密度は0.13~0.18g/cm3であることができる。なお、通気抵抗は通気抵抗測定器(商品名:SODIMAX、SODIM製)により測定される値である。
本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器と、該非燃焼加熱型香味吸引器のたばこ含有セグメントを加熱する加熱装置と、を備える。本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器及び前記加熱装置以外に、他の構成を有していてもよい。
本実施態様は、以下の[1a]~[19a]を含む。本実施形態によれば、使用の前半から後半にわたって使用者に供給される各成分のバランスが均一な非燃焼加熱型香味吸引器及び非燃焼加熱型香味吸引システムを提供することができる。
前記たばこ含有セグメントが、エアロゾル発生剤を含む第一のセグメントと、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含む第二のセグメントと、を含み、
前記マウスピースセグメントが、冷却セグメントと、フィルターセグメントと、を含む非燃焼加熱型香味吸引器。
前記液体不透過層が、金属箔、ポリマーフィルム、又は、修飾セルロース、修飾でんぷん、ポリビニルアルコール及び酢酸ビニルからなる群から選択されるコート剤の層からなり、
前記ラッパーの一方の端部と他方の端部において、前記ラッパーの前記液体不透過層同士が接着されることで、前記ラッパーが筒状に形成されている、[4a]~[6a]のいずれかに記載の非燃焼加熱型香味吸引器。
前記非燃焼加熱型香味吸引器の前記たばこ含有セグメントを加熱するヒータを備える加熱装置と、
を備える非燃焼加熱型香味吸引システム。
本実施形態に係る非燃焼加熱型香味吸引器では、たばこ含有セグメントが、エアロゾル発生剤を含む第一のセグメントと、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含む第二のセグメントを含む。そのため、たばこ含有セグメントを加熱する際に、沸点が高い(蒸気圧が低い)エアロゾル発生剤を含む第一のセグメントの加熱温度を高くし、かつ、沸点が低い(蒸気圧が高い)たばこ成分等の香味成分を含む第二のセグメントの加熱温度を低くすることができる。これにより、使用の前半における沸点が低い(蒸気圧が高い)香味成分の揮発を抑制でき、使用の後半まで香味成分の揮発及び供給を維持することができる。さらに、使用の前半における沸点が高い(蒸気圧が低い)エアロゾル発生剤の揮発を促進できる。したがって、本実施形態に係る非燃焼加熱型香味吸引器では、使用の前半から後半にわたって使用者に供給される各成分のバランスを均一にすることができる。
本実施形態に係るたばこ含有セグメントは、エアロゾル発生剤を含む第一のセグメントと、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含む第二のセグメントと、を含む。本実施形態に係るたばこ含有セグメントは、前記第一のセグメント及び/又は前記第二のセグメントを複数含んでもよい。
本実施形態に係る第一のセグメントは、エアロゾル発生剤を含む。エアロゾル発生剤としては、例えばグリセリン、プロピレングリコール、1,3-ブタンジオール等が挙げられる。これらは一種を用いてもよく、二種以上を併用してもよい。
本実施形態に係る第二のセグメントは、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含む。すなわち、第二のセグメントはたばこ成分等の香味成分を含む。第二のセグメントは、例えば筒状のラッパーと、前記ラッパー内部に充填された本実施形態に係る非燃焼加熱型香味吸引器用たばこシートとを含むことができる。
たばこ含有セグメントの構成は、たばこ含有セグメントが前記第一のセグメントと前記第二のセグメントを含めば特に限定されないが、前記第二のセグメントが、前記第一のセグメントに対して前記マウスピースセグメント側(下流側)に配置されていることが好ましい。例えば図3(a)に示されるように、柱状の第二のセグメント105が柱状の第一のセグメント104に対してマウスピースセグメント103側(下流側)に配置されていることができる。図3(a)において、第一のセグメント104は、エアロゾル発生剤を含み植物繊維で構成される不織布109が第一のラッパー110内に充填されて構成されることができる。また、第二のセグメント5は、たばこシート111が第二のラッパー112内に充填されて構成されることができる。第一のセグメント及び第二のセグメントに含まれる各成分の揮発のしやすさは主に加熱温度で決まるが、揮発する成分と相溶性が高い物質が周辺に存在することで、前記成分の揮発が促進される。前記構成では、第一のセグメントで揮発したエアロゾル発生剤が、吸引時に第二のセグメントに流れ込んだ瞬間に冷却されて液化(エアロゾル化)し、第二のセグメント内に存在する香味成分(例えばニコチン)をエアロゾル内に溶解してたばこ含有セグメント外に運び出すことで、第二のセグメント内の前記香味成分の濃度が下がり、揮発が促進される。これにより、第二のセグメントの温度をそれほど上げなくても、リリース効率が担保される。そのため、低温においてパフ動作の都度、第二のセグメントから前記香味成分をリリースさせることができ、結果として前記香味成分が出尽くしてしまうことを抑制することができる。たばこ含有セグメントの軸方向における、第二のセグメントの長さ(B)に対する第一のセグメントの長さ(A)の比率(A/B)は、0.3~3.0が好ましく、0.5~2.0がより好ましい。
本実施形態に係るマウスピースセグメントは、冷却セグメントと、フィルターセグメントと、を含む。本実施形態に係るマウスピースセグメントは、冷却セグメント及び/又はフィルターセグメントを複数含んでもよい。また、本実施形態に係るマウスピースセグメントは、前記冷却セグメント及び前記フィルターセグメント以外の他のセグメントを含んでもよい。他のセグメントとしては、例えばセンターホールセグメント等が挙げられる。
図3(a)に示されるように、冷却セグメント106は筒状部材113で構成される態様を挙げることができる。筒状部材113は例えば厚紙を円筒状に加工した紙管であってもよい。
センターホールセグメントは1つまたは複数の中空部を有する充填層と、該充填層を覆うインナープラグラッパー(内側巻紙)とで構成される。例えば、図3(a)に示されるように、センターホールセグメント107は、中空部を有する第二の充填層115と、第二の充填層115を覆う第二のインナープラグラッパー116とで構成される。センターホールセグメント107は、マウスピースセグメント103の強度を高める機能を有する。第二の充填層115は、例えば酢酸セルロース繊維が高密度で充填されトリアセチンを含む可塑剤が酢酸セルロース質量に対して、6質量%以上、20質量%以下添加されて硬化された内径φ1.0mm以上、φ5.0mm以下のロッドとすることができる。第二の充填層115は繊維の充填密度が高いため、吸引時は、空気やエアロゾルは中空部のみを流れることになり、第二の充填層115内はほとんど流れない。センターホールセグメント107内部の第二の充填層115が繊維充填層であることから、使用時の外側からの触り心地は、使用者に違和感を生じさせることが少ない。なお、センターホールセグメント107が第二のインナープラグラッパー116を持たず、熱成型によってその形が保たれていてもよい。
フィルターセグメントの構成は特に限定されないが、単数または複数の充填層から構成されてよい。例えば図3(a)に示されるように、フィルターセグメント108において、第一の充填層117の外側は第一のインナープラグラッパー118(内側巻紙)で巻装されてよい。フィルターセグメントのセグメント当たりの通気抵抗は、フィルターセグメントに充填される充填物の量、材料等により適宜変更することができる。例えば、充填物が酢酸セルロース繊維である場合、フィルターセグメントに充填される酢酸セルロース繊維の量を増加させれば、通気抵抗を増加させることができる。充填物が酢酸セルロース繊維である場合、酢酸セルロース繊維の充填密度は0.13~0.18g/cm3であることができる。また、同じ充填密度においても、充填する酢酸セルロース繊維の太さは太い方が低い通気抵抗を発現するためには好ましい。酢酸セルロース繊維の1本の太さは、5~20デニール/フィラメントが好ましい。さらには、フィルターセグメントの高速製造の観点で7~13デニール/フィラメントであることがさらに好ましい。なお、通気抵抗は通気抵抗測定器(商品名:SODIMAX、SODIM製)により測定される値である。
本実施形態に係る非燃焼加熱型香味吸引器の軸方向の長さは特に限定されないが、40mm以上、90mm以下であることが好ましく、50mm以上、75mm以下であることがより好ましく、50mm以上、60mm以下であることがさらに好ましい。また、非燃焼加熱型香味吸引器の周の長さは16mm以上、25mm以下であることが好ましく、20mm以上、24mm以下であることがより好ましく、21mm以上、23mm以下であることがさらに好ましい。例えば、たばこ含有セグメントの長さは20mm、冷却セグメントの長さは20mm、センターホールセグメントの長さは8mm、フィルターセグメントの長さは7mmである態様を挙げることができる。なお、フィルターセグメントの長さは4mm以上、20mm以下の範囲内で選択可能である。また、その際のフィルターセグメントの通気抵抗は、セグメント当たり10mmH2O/seg以上、60mmH2O/seg以下であるように選択される。これら個々のセグメント長さは、製造適性、要求品質等に応じて、適宜変更できる。さらには、センターホールセグメントを用いずに、冷却セグメントの下流側にフィルターセグメントのみを配置しても、非燃焼加熱型香味吸引器として機能させることができる。
本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器と、前記非燃焼加熱型香味吸引器の前記たばこ含有セグメントを加熱するヒータを備える加熱装置と、を備える。本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器を備えるため、使用の前半から後半にわたって使用者に供給される各成分のバランスが均一である。本実施形態に係る非燃焼加熱型香味吸引システムは、本実施形態に係る非燃焼加熱型香味吸引器及び前記加熱装置以外の他の構成を有していてもよい。
本実施態様は、以下の[1b]~[7b]を含む。本実施形態によれば、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型香味吸引器及び非燃焼加熱型香味吸引システムを提供できる。
前記マウスピースセグメントが、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、非燃焼加熱型香味吸引器。
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
本発明の一実施形態である非燃焼加熱型香味吸引器(単に「非燃焼加熱型香味吸引器」とも称する。)は、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含むたばこ含有セグメントと、マウスピースセグメントとを備える棒状の非燃焼加熱型香味吸引器であって、
前記マウスピースセグメントが、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、非燃焼加熱型香味吸引器である。
本実施形態に係る非燃焼加熱型香味吸引器の一例を図9に示す。以下、該図9を参照しながら非燃焼加熱型香味吸引器の説明を行う。
非燃焼加熱型香味吸引器210では、たばこ含有セグメント211等の加熱により生成される成分がマウスピースセグメント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、エアロゾル発生剤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、エアロゾル発生剤とは、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、たばこ含有セグメント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。
非燃焼加熱型香味吸引器210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。
非燃焼加熱型香味吸引器210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。
非燃焼加熱型香味吸引器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、非燃焼加熱型香味吸引器210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型香味吸引器の長さとの関係は、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、非燃焼加熱型香味吸引器の通気抵抗は倍になる。
マウスピースセグメント214は、フィルター濾材を有するフィルターセグメント213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9に示すように、冷却セグメント212と、上記のフィルター濾材を含むフィルターセグメント213とを含み、非燃焼加熱型香味吸引器210の軸方向に対して、冷却セグメント212が、たばこ含有セグメント211とフィルターセグメント213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213及び冷却セグメント212について詳細に説明する。
フィルターセグメント213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非燃焼加熱型香味吸引システムにおいては、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213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213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213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213の通気抵抗は、フィルターセグメント213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213の通気抵抗とフィルターセグメント213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213の通気抵抗は倍になる。
フィルターセグメント213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、マウスピースセグメントの円周が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、液体又は固体である。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、またはクローブ、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212は、たばこ含有セグメント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212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。
たばこ含有セグメントにエアロゾル発生剤が用いられる場合、たばこロッドが加熱されることで生じるエアロゾル発生剤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、非燃焼加熱型香味吸引器210が、たばこ含有セグメント211、冷却セグメント212及びフィルターセグメント213がチップペーパー215で巻装されてなる態様である場合、チップペーパー215には、冷却セグメント212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型香味吸引器210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215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212を用いて非燃焼加熱型香味吸引器210を作製した後、冷却セグメント212及びチップペーパー215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、非燃焼加熱型香味吸引器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212とたばこ含有セグメント211との境界を基準に考えると、冷却セグメント212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212とたばこ含有セグメント211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212に充填する場合、冷却セグメント212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212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212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。
たばこ含有セグメント211の態様は、本実施形態に係る非燃焼加熱型香味吸引器用たばこシートを含めば特段制限されないが、たばこシートを含むたばこ充填物を巻紙で巻装してなる態様であることができる。たばこ充填物は、エアロゾル発生剤を含んでいてもよい。エアロゾル発生剤は、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、及び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発生剤の含有量は、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含有セグメント211は、柱状形状を有していることが好ましく、この場合には、たばこ含有セグメント211の底面の幅に対するたばこ含有セグメント211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、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。たばこ含有セグメント211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、針葉樹パルプや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、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、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、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。
該非燃焼加熱型香味吸引器の巻紙として、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(たばこ含有セグメントを作製するため)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含有セグメント211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、たばこ含有セグメント211とたばこ含有セグメント211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、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、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215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、針葉樹パルプや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、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215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、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、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215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215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215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型香味吸引器の製造方法は、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、たばこ含有セグメント及びマウスピースセグメント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非燃焼加熱型香味吸引システム(単に「非燃焼加熱型香味吸引システム」とも称する。)は、ヒータと、該ヒータの電力源となる電池ユニットと、該ヒータを制御するための制御ユニットとを備える加熱装置と、該ヒータに接触するように挿入される、上記の非燃焼加熱型香味吸引器と、から構成される、非燃焼加熱型香味吸引システムである。
非燃焼加熱型香味吸引システムの態様としては図10に示すような、非燃焼加熱型香味吸引器210の外周面を加熱する態様であってもよく、図11に示すような、非燃焼加熱型香味吸引器210におけるたばこ含有セグメント211の内部から加熱する態様であってもよい。なお、図10及び図11に示す加熱装置220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11を用いて非燃焼加熱型香味吸引システム230を説明する。なお、図10及び11における非燃焼加熱型香味吸引器210について、図10及び11に示す各構成を表す符号は一部省略する。
非燃焼加熱型香味吸引システム230は、加熱装置220の内部に配置された、ヒータ221に、上記で説明した非燃焼加熱型香味吸引器210が接触するように挿入されて使用される。
加熱装置220は、例えば樹脂性の躯体224の内部に、電池ユニット222と制御ユニット223とを有する。
非燃焼加熱型香味吸引器210を加熱装置220に挿入すると、たばこ含有セグメント211の外周面が加熱装置220のヒータ221と接触し、やがてたばこ含有セグメント211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221に接触する。
加熱装置220のヒータ221は、制御ユニット223による制御により発熱する。その熱が非燃焼加熱型香味吸引器210のたばこ含有セグメント211に伝わることで、たばこ含有セグメント211のたばこ充填物に含まれるエアロゾル発生剤や香味成分等が揮発する。
図10に示すような、非燃焼加熱型香味吸引器210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、平板状ヒータ、筒状ヒータを用いることができる。一方で、図11に示すような、非燃焼加熱型香味吸引器210におけるたばこ含有セグメント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や柱状ヒータ、錐状ヒータを用いることができる。
ヒータ221の長軸方向の長さは、たばこ含有セグメント211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221の長軸方向の長さは、たばこ含有セグメント211に十分に熱を伝え、たばこ充填物に含まれるエアロゾル発生剤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221による加熱により、たばこ含有セグメント211から生じるエアロゾル発生剤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212やフィルターセグメント213等から構成されるマウスピースセグメント214を通して使用者の口腔内に到達する。
本実施態様は、以下の[1c]~[13c]を含む。本実施形態によれば、破断折れの抑制と伝熱効率のバランスに優れたたばこ含有セグメントを備える非燃焼加熱型香味吸引器を提供できる。
当該たばこ含有セグメントに隣接する隣接部材と、
当該たばこ含有セグメントを巻包する巻包材、または当該たばこ含有セグメントと隣接部材とを巻包する巻包材と、
を備える非燃焼加熱型香味吸引器であって、
前記巻包材が、当接する被巻装部材よりも高い伝熱性を有する高伝熱部を有し、
当該高伝熱部が、たばこ含有セグメントの下流端近傍を巻包している、非燃焼加熱型香味吸引器。
QdT≧330(W/℃)・・・(1)
ここで、QdTは円筒形状サンプルに基づいて算出された下記式で定義される伝熱量係数である、
QdT=K×2πL/ln(r2/r1)
K=熱伝導係数(W/m/℃)
L=サンプルの軸方向長さ(mm)
r2=サンプルの外半径(mm)
r1=サンプルの内半径(mm)
[1c]~[4c]のいずれかに記載の非燃焼加熱型香味吸引器。
当該非燃焼加熱型香味吸引器のたばこ含有セグメントにおける前記高伝熱部が巻包している部分を加熱するヒータを
備える加熱装置と、
を備える、非燃焼加熱型香味吸引システム。
図18は本実施形態の非燃焼加熱型香味吸引器の一態様を示す。図中、310は非燃焼加熱型香味吸引器、301はたばこ含有セグメント、303はたばこ含有セグメントに隣接する隣接部材(好ましくは冷却部材)、305はマウスピース、352はフィルター、354はセンターホールフィルター、307はチップペーパー、309は巻包材、Vはベンチレーションである。図18に示す態様は、たばこシートを直接加熱するので非燃焼直接加熱型香味吸引器ともいう。
たばこ含有セグメントは本実施形態に係るたばこシートを含み、該たばこシートに含まれる香喫味成分を発生するための略円柱状の部材である。たばこ含有セグメントはたばこシートとその周囲を巻装する巻紙(ラッパー)を備える。巻紙内に充填されるたばこシートの形状は限定されず、例えばシートそのもの、または当該シートを幅0.8~1.2mmに裁刻したものなどが挙げられる。前記シートを裁刻せずにギャザー加工、折り畳み、あるいは渦巻き状にして巻紙内に充填してたばこ含有セグメントとしてもよい。また、当該シートを短冊状に裁断してこれらを巻紙に、同心円状にあるいは短冊の長手方向がたばこ含有セグメントの長手方向と平行になるように充填してたばこ含有セグメントとしてもよい。
隣接部材303とは、たばこ含有セグメント301の下流側に隣接する部材である。本実施形態において、下流とは吸口端への方向をいう。隣接部材としては、エアロゾルを冷却するための冷却部材、器全体の強度を高めるための支持部材、または後述するマウスピースが挙げられる。本実施形態において隣接部材303は冷却部材であることが好ましい。
巻包材は、たばこ含有セグメント、または当該たばこ含有セグメントと隣接部材とを巻包する。巻包材は、当接する被巻装部材よりも伝熱性が高い高伝熱部を備える。当該構成を備える非燃焼加熱型香味吸引器は、破断折れの抑制と伝熱効率のバランスに優れ、総煙量を増加させる。高伝熱部を構成する材料としては、熱伝導係数が50(W/m/℃)以上である材料が挙げられる。このような材料の具体例としては、アルミニウム、鉄、ステンレス、亜鉛、金、または銀が挙げられる。
QdT≧330(W/℃)・・・(1)
ここで、QdTは図21に示す円筒形状サンプルに基づき算出された下記式で定義される伝熱量係数である。
QdT=K×2πL/ln(r2/r1)
K=熱伝導係数(W/m/℃)
L=サンプルの軸方向長さ(mm)
r2=サンプルの外半径(mm)
r1=サンプルの内半径(mm)
図21は、内半径r1、外半径r2、高さLの円筒サンプルであり、内壁の温度がT1、外壁の温度がT2である。この場合、伝熱速度Q(W)は、フーリエの法則から式(i)で与えられる。Kは熱伝導係数(W/m/℃)、Amは対数平均面積(m2)である。
マウスピースは吸口端を構成する部材である。一態様においてマウスピース305は、フィルター352とセンターホールフィルター354を備える。フィルター352およびセンターホールフィルター354としては公知のものを使用できる。
非燃焼加熱型香味吸引器と加熱ユニットの組合せを非燃焼加熱型香味吸引システムともいう。図19に当該システムの一態様を示す。図中、300は非燃焼加熱型香味吸引システム、310は非燃焼加熱型香味吸引器、330はヒータを備える加熱ユニットである。加熱ユニットは、ヒータとハウジングと電源等を備える。
たばこラミナ(葉たばこ)をホソカワミクロンACM機にて乾式粉砕し、たばこ粉末を得た。該たばこ粉末について、マスターサイザー(商品名、スペクトリス株式会社マルバーン・パナリティカル事業部製)を用いて、乾式レーザー回折法により測定される体積基準の粒度分布における累積90%粒子径(D90)を測定したところ、200μmであった。
実施例1と同様にたばこ粉末を調製した。該たばこ粉末をたばこ原料として用いて、圧延法にてたばこシートを製造した。具体的には、前記たばこ原料87質量部と、エアロゾル発生剤としてのグリセリン12質量部と、成型剤としてのカルボキシメチルセルロース1質量部とを混合し、押出成形機にて混練した。混練物を2対の金属製ロールにてシート状に成型し、80℃の熱風循環式オーブンにて乾燥してたばこシートを得た。該たばこシートをシュレッダーにて0.8mm×9.5mmのサイズに裁刻した。裁刻されたたばこシートについて、実施例1と同様に膨嵩性を測定した。結果を表4に示す。
[参考例1b]
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。
巻き上げたたばこ含有セグメントは水準毎に200本ずつプラスチックの密閉容器に入れて保管した。
保管したたばこ含有セグメントを長さ20mmに切断した。その後、たばこ含有セグメントと、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型香味吸引器を作製した後、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(非燃焼加熱型香味吸引器の吸口端から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、参考例1bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、以下の全ての参考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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、比較例1bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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。他の参考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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例2bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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参考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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例3bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例4bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例5bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例6bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、参考例7bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、比較例2bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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、参考例1bの非燃焼加熱型香味吸引器と同様の方法により、比較例3bの非燃焼加熱型香味吸引器を作製した。該非燃焼加熱型香味吸引器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3bの非燃焼加熱型香味吸引器は、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。
参考例1b~7b及び比較例1b~3bで作製した各非燃焼加熱型香味吸引器を喫煙試験に供し、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。
外周加熱を行う加熱装置を使用し、非燃焼加熱型香味吸引器を挿入した後に、ヒータ温度を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、非燃焼加熱型香味吸引器と加熱装置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、参考例1b~6b及び比較例1bについてはパフ動作を12回、参考例7b及び8b並びに比較例2b及び3b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。
参考例1b~9b及び比較例1bにおける非燃焼加熱型香味吸引器において、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6及び7、並びに図14~17に示す。具体的に、図14には参考例1b及び3b、並びに比較例1b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15には参考例7b及び比較例2b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16には参考例2b及び4b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17には参考例5b及び6b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参考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。
図18に示すような非燃焼加熱型香味吸引器を準備した。外径は7mm、全長は55mmであり、各セグメントの寸法は以下のとおりであった。
たばこ含有セグメント:20mm
冷却セグメント:20mm
マウスピースセグメント:15mm
アルミニウム箔A1:非燃焼加熱型香味吸引器の軸方向長さが15mm、厚さ30μm
アルミニウム箔A2:非燃焼加熱型香味吸引器の軸方向長さが22mm、厚さ30μm
貼合紙AP:非燃焼加熱型香味吸引器の軸方向長さが15mm、厚さ50μmの紙と厚さ15μmアルミニウム箔を貼合せた積層体
それぞれの巻包材を用いて非燃焼加熱型香味吸引器を巻包した。非燃焼加熱型香味吸引器の上流端を基準とした巻包材の上流端の位置を表8に示した。
巻包材を巻包しなかったこと以外は、参考例1cと同じ非燃焼加熱型香味吸引器を準備した。喫煙試験に供する前の当該香味吸引器について、参考例1cと同じ方法で破断試験を行った。さらに、参考例1cと同じ非燃焼加熱型香味吸引器を準備した。巻包材を巻包しない当該香味吸引器を参考例1cと同じ方法で喫煙試験に供し、その後、破断試験に供した。結果を表8に示した。
前述の条件で自動喫煙器を用いて喫煙試験を行い、1パフごとの煙量を測定した。ただし加熱温度は295℃とした。具体的には、フィルターを介さずに喫煙機から吐出された煙の光透過度を、フォトセンサーを用いて検出し、煙量を測定した。一般的な煙量測定には、パフ毎に煙成分をガラス繊維フィルターに捕集して秤量する捕集法が用いられる。しかしながらこの方法は比較的煩雑な操作が必要で、またリアルタイムに迅速な計測が困難である。そこで本実施形態においてはフォトセンサーを使用した測定システムを新たに構築して使用した。測定システムの精度を検証するため、市販品PloomTech+(登録商標)(日本たばこ産業株式会社製)をエアロゾル発生源として使用し、一定の煙量に対する電圧値の関係におけるこの測定システム自体の精度を検証した。その結果σ0.005V(CV値2%未満)の結果が得られたため、本システムはデータ評価に際し十分な精度であることが確認された。
前述の煙量測定値(センサー電圧値)と煙量の感覚との関係を調べるため、パネリストによる煙量の官能評価を行った。パネリストは当該煙量の官能評価について十分な訓練を受けた6名とし、下記の評価基準を基に、市販品PloomS(登録商標)(日本たばこ産業株式会社製)をエアロゾル発生源として使用し、一定の煙量に対する官能評価を実施した。同時に前述のシステムで煙量を測定し、その相関性を検証した。具体的には、感覚と刺激量の間には対数相関があるというヴェーバー-フェヒナーの法則に基づいて検証を行った。結果を図24に示す。
0:全く煙が出ていない
1:微かに煙が出ている
2:煙がやや出ている
3:煙が出ている
4:煙がかなり出ている
5:煙が非常に多く出ている
参考例1cと同じ巻き包材を備える非燃焼加熱型香味吸引器を準備した。各香味吸引器について、前述のとおり煙量の測定を行った。フォトセンサーからの電圧値は煙の濃度を反映しており、データロガーでリアルタイムに記録することができた。1パフ内電圧値の最大値とベースラインの差をもって煙量とした。結果を図23に示した。電圧値の差0.05Vは、パネリストが適切に煙量の差を認識できるレベルである。なお、データのバラつきについて統計的な検証を行うため、比較例、参考例それぞれのパフごとの値を対象に標準偏差を算出してその平均値を求めた。その結果、当該平均値は0.04Vであり、比較例に対し、各参考例は、特に3パフ以降において差異があることが確認された。
巻包材を巻包しなかったこと以外は、参考例1cと同じ非燃焼加熱型香味吸引器を準備した。参考例2cと同じ方法で喫煙試験を行い、各パフにおける煙量を求めた。結果を図23に示した。
2 たばこ含有セグメント
3 冷却セグメント
4 センターホールセグメント
5 フィルターセグメント
6 マウスピースセグメント
7 筒状部材
8 穿孔
9 第二の充填層
10 第二のインナープラグラッパー
11 アウタープラグラッパー
12 マウスピースライニングペーパー
13 加熱装置
14 ボディ
15 ヒータ
16 金属管
17 電池ユニット
18 制御ユニット
19 凹部
Claims (21)
- ファイバー状材料を含む非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシート100質量%に含まれる前記ファイバー状材料の割合が5~50質量%である、請求項1に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記ファイバー状材料が、ファイバー状パルプ、ファイバー状たばこ材料及びファイバー状合成セルロースからなる群から選択される少なくとも一つである、請求項1又は2に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記ファイバー状材料がファイバー状パルプである、請求項3に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシートがさらにたばこ原料を含む、請求項4に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこ原料が、葉たばこ、中骨及び残幹からなる群から選択される少なくとも一種のたばこ粉末である、請求項5に記載の非燃焼加熱型香味吸引器用たばこシートの製造方法。
- 前記たばこシート100質量%に含まれる前記たばこ原料の割合が30~91質量%である、請求項5又は6に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシートが成型剤をさらに含む、請求項4から7のいずれか一項に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記成型剤が、多糖類、タンパク及び合成ポリマーからなる群から選択される少なくとも一つである、請求項8に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシート100質量%に含まれる前記成型剤の割合が0.1~15質量%である、請求項8又は9に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシートがさらにエアロゾル発生剤を含む、請求項1から10のいずれか一項に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記エアロゾル発生剤が、グリセリン、プロピレングリコール及び1,3-ブタンジオールからなる群から選択される少なくとも一つである、請求項11に記載の非燃焼加熱型香味吸引器用たばこシート。
- 前記たばこシート100質量%に含まれる前記エアロゾル発生剤の割合が5~50質量%である、請求項11又は12に記載の非燃焼加熱型香味吸引器用たばこシート。
- 請求項1から13のいずれか一項に記載の非燃焼加熱型香味吸引器用たばこシートを含むたばこ含有セグメントを備える非燃焼加熱型香味吸引器。
- 前記非燃焼加熱型香味吸引器がマウスピースセグメントをさらに含み、
前記たばこ含有セグメントが、エアロゾル発生剤を含む第一のセグメントと、前記非燃焼加熱型香味吸引器用たばこシートを含む第二のセグメントと、を含み、
前記マウスピースセグメントが、冷却セグメントと、フィルターセグメントと、を含む、請求項14に記載の非燃焼加熱型香味吸引器。 - 前記第一のセグメントが、筒状のラッパーと、前記ラッパー内部に充填された植物繊維で構成される不織布と、を含み、前記不織布が前記エアロゾル発生剤を含む、請求項15に記載の非燃焼加熱型香味吸引器。
- 前記非燃焼加熱型香味吸引器が棒状であり、マウスピースセグメントをさらに備え、
前記マウスピースセグメントが、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、請求項14に記載の非燃焼加熱型香味吸引器。 - 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17に記載の非燃焼加熱型香味吸引器。
- 前記非燃焼加熱型香味吸引器が、
前記たばこ含有セグメントに隣接する隣接部材と、
前記たばこ含有セグメントを巻包する巻包材、または前記たばこ含有セグメントと前記隣接部材とを巻包する巻包材と、
をさらに備え、
前記巻包材が、当接する被巻装部材よりも高い伝熱性を有する高伝熱部を有し、
当該高伝熱部が、たばこ含有セグメントの下流端近傍を巻包している、請求項14に記載の非燃焼加熱型香味吸引器。 - 前記高伝熱部が、前記たばこ含有セグメントの下流端近傍から隣接部材の上流端近傍までを巻包している、請求項19に記載の非燃焼加熱型香味吸引器。
- 請求項14から20のいずれか一項に記載の非燃焼加熱型香味吸引器と、
前記たばこ含有セグメントを加熱する加熱装置と、
を備える非燃焼加熱型香味吸引システム。
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KR1020237040755A KR20240002243A (ko) | 2021-04-27 | 2022-04-26 | 비연소 가열형 향미 흡인기용 담배 시트, 비연소 가열형 향미 흡인기, 및 비연소 가열형 향미 흡인 시스템 |
CN202280044919.3A CN117677307A (zh) | 2021-04-27 | 2022-04-26 | 非燃烧加热型香味抽吸器用烟草片、非燃烧加热型香味抽吸器、以及非燃烧加热型香味抽吸系统 |
US18/493,285 US20240049768A1 (en) | 2021-04-27 | 2023-10-24 | Tobacco sheet for non-combustion heating type flavor inhalers, non-combustion heating type flavor inhaler, and non-combustion heating type flavor inhalation system |
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JPWO2022230867A1 (ja) | 2022-11-03 |
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US20240049768A1 (en) | 2024-02-15 |
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