EP3729976A1 - Tobacco product, and filter for tobacco product - Google Patents
Tobacco product, and filter for tobacco product Download PDFInfo
- Publication number
- EP3729976A1 EP3729976A1 EP17935052.5A EP17935052A EP3729976A1 EP 3729976 A1 EP3729976 A1 EP 3729976A1 EP 17935052 A EP17935052 A EP 17935052A EP 3729976 A1 EP3729976 A1 EP 3729976A1
- Authority
- EP
- European Patent Office
- Prior art keywords
- powder
- filter unit
- cavity
- mouthpiece
- supply path
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Withdrawn
Links
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- 238000009423 ventilation Methods 0.000 description 1
- 235000013343 vitamin Nutrition 0.000 description 1
- 229940088594 vitamin Drugs 0.000 description 1
- 239000011782 vitamin Substances 0.000 description 1
- 229930003231 vitamin Natural products 0.000 description 1
- 229920003169 water-soluble polymer Polymers 0.000 description 1
- 239000000811 xylitol Substances 0.000 description 1
- 235000010447 xylitol Nutrition 0.000 description 1
- HEBKCHPVOIAQTA-SCDXWVJYSA-N xylitol Chemical compound OC[C@H](O)[C@@H](O)[C@H](O)CO HEBKCHPVOIAQTA-SCDXWVJYSA-N 0.000 description 1
- 229960002675 xylitol Drugs 0.000 description 1
- FYGDTMLNYKFZSV-BYLHFPJWSA-N β-1,4-galactotrioside Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1O[C@@H]1[C@H](CO)O[C@@H](O[C@@H]2[C@@H](O[C@@H](O)[C@H](O)[C@H]2O)CO)[C@H](O)[C@H]1O FYGDTMLNYKFZSV-BYLHFPJWSA-N 0.000 description 1
Images
Classifications
-
- 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
- A24D3/048—Tobacco smoke filters characterised by their shape or structure containing additives
-
- 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
- A24D1/00—Cigars; Cigarettes
- A24D1/002—Cigars; Cigarettes with additives, e.g. for flavouring
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/042—Cigars; Cigarettes with mouthpieces or filter-tips with mouthpieces
-
- 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
- A24D1/04—Cigars; Cigarettes with mouthpieces or filter-tips
- A24D1/045—Cigars; Cigarettes with mouthpieces or filter-tips with smoke filter means
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0216—Applying additives to filter materials the additive being in the form of capsules, beads or the like
-
- 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
- A24D3/02—Manufacture of tobacco smoke filters
- A24D3/0204—Preliminary operations before the filter rod forming process, e.g. crimping, blooming
- A24D3/0212—Applying additives to filter materials
- A24D3/0225—Applying additives to filter materials with solid additives, e.g. incorporation of a granular product
-
- 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
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- 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
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
Definitions
- the present invention relates to a smoking article and a filter for a smoking article.
- Patent document 1 discloses a smoking article with a filter including: a powder content that is a lump of base powder containing at least either one of a taste component or a flavoring component, the powder content being turned into powder by applying an external force thereto; a cavity where the powder content is accommodated; and a flow path through which the cavity is in communication with a mouthpiece end, the flow path letting the powder through.
- Patent document 1 International Publication No. WO 2016/181843
- an inner diameter of the flow path for the powder is reduced to be smaller than an outer diameter of the lump of powder content, thereby making it possible to reduce powder spillage, that is, spilling of the powder at an unintended timing such as during production or transportation.
- Patent document 1 discloses an embodiment where a plurality of flow paths penetrate through a mouthpiece-side filter in the axial direction. It is true that the plurality of flow paths provided in the filter increase a total cross-sectional area of the flow path for the powder, making it easy to ensure the delivery amount of the powder.
- to independently arrange the plurality of flow paths in a cross section of the filter it is necessary to produce the filter using a plurality of mandrels. Since it is difficult to evenly fill spaces between the mandrels with a filter fiber, a production quality of the filter is likely to be unstable.
- an object of the present invention which relates to a filter for a smoking article that allows powder containing at least either one of a test component or a flavoring component to be inhaled, is to provide a technology that enables ensuring a delivery amount of the powder during inhale while reducing powder spillage not during inhale, and stabilizing a production quality of the filter.
- base powder containing at least either one of a taste component or a flavoring component is formed in a lump of powder content that is turned into powder by application of an external force, and a powder supply path provided in a mouthpiece filter unit has a central connection portion located at a central side of a cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- a smoking article includes: a tobacco rod including tobacco shreds; and a filter coupled to an end portion of the tobacco rod via a tipping paper, in which the filter includes: a powder content that includes a lump of base powder containing at least either one of a taste component or a flavoring component and is turned into powder by application of an external force; a cavity where the powder content is accommodated; and a mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, and in a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- Examples of the smoking article include a cigarette, a cigar, a cigarillo, a smoking tool that allows for inhaling a smoke flavor, an aroma, or both of tobacco using electronic device heating, carbon heat source, or the like, and a non-heated smoking tool that allows for inhaling a smoke flavor, an aroma, or both of tobacco.
- each of the holes of the powder supply path may have a relatively large opening width at an outer peripheral region located at the outer peripheral side of the cross section of the mouthpiece filter unit as compared with at a central region located at the central side of the cross section.
- the powder supply path may have the holes that are at least three and not more than five in number.
- the plurality of holes of the powder supply path may radially extend from the central connection portion.
- a filter fiber that provides the mouthpiece filter unit may be interposed between a distal end of each of the holes of the powder supply path and a wrapping paper of the mouthpiece filter unit.
- a filter for a smoking article includes: a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force; a cavity where the powder content is accommodated; and a mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, and in a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- a filter for a smoking article that allows a smoker to inhale powder containing at least either one of a taste component or a flavoring component at a desired timing, it is possible to ensure a delivery amount of the powder during inhale while reducing powder spillage not during inhale and to stabilize a production quality of the filter.
- Fig. 1 is an exterior perspective view of a cigarette 1 according to Embodiment 1.
- Fig. 2 is a longitudinal sectional view of a relevant portion of the cigarette 1 according to Embodiment 1.
- the cigarette 1 is a filter-equipped cigarette including a tobacco rod 2 and a filter 4 coupled to an end of the tobacco rod 2 via a tipping paper 3.
- the tobacco rod 2 includes tobacco shreds 21 wrapped with a cigarette paper 22, being formed in a columnar shape (stick shape) .
- the filter 4 is a member for filtering, when letting a mainstream smoke caused by smoking the cigarette 1 through, a smoke component from the mainstream smoke, and is formed in a columnar shape with substantially the same diameter as that of the tobacco rod 2.
- the filter 4 is wrapped with a wrapping paper 45 and the tipping paper 3 and coupled to a rear end side of the tobacco rod 2 via the tipping paper 3.
- the tipping paper 3 wraps an end portion of the tobacco rod 2 and the filter 4 into one piece, thereby coupling (uniting) them.
- the end portion to be coupled to the filter 4 in a longitudinal direction (axial direction) of the tobacco rod 2 is hereinafter referred to as a "rear end” and an end portion opposite thereto as a "front end” (distal end).
- an end portion to be coupled to the tobacco rod 2 in a longitudinal direction (axial direction) of the filter 4 is referred to as a "front end” and an end portion opposite to the front end as a "mouthpiece end.”
- a cross section along a longitudinal direction (axial direction) of the cigarette 1 (tobacco rod 2, filter 4) is defined as a “ longitudinal section” and a cross section along a direction orthogonal thereto as a “cross section.”
- upstream and “downstream” refer to relative positional relationships based on a stream of the mainstream smoke.
- a reference symbol CL in Fig. 2 denotes a center axis of the cigarette 1 (tobacco rod 2, filter 4).
- the filter 4 includes an upstream filter unit 41 coupled to the rear end side of the tobacco rod 2, a mouthpiece filter unit 42 located at a mouthpiece end side, a hollow cavity 43 defined between the upstream filter unit 41 and the mouthpiece filter unit 42, and a powder content 44 accommodated in the cavity 43.
- the powder content 44 which is a lump of base powder containing at least either one of a taste component or a flavoring component, is turned into powder when crushed by a smoker.
- the upstream filter unit 41 and the mouthpiece filter unit 42 each include a filter fiber such as acetate formed in a columnar shape, for example.
- the upstream filter unit 41 and the mouthpiece filter unit 42 are wrapped into one piece with the wrapping paper 45.
- the wrapping paper 45 used for the filter 4 may be a breathable(air-permeable) wrapping paper usable for typical products or a non-breathable wrapping paper.
- a paper produced from a plant fiber is typically used as a material of the wrapping paper 45 but a sheet of a chemical fiber of a polymer (polypropylene, polyethylene, nylon, etc.) or a polymer sheet may be used or a metal foil such as aluminum foil may be used. It should be noted that a so-called non-wrap filter may be used as the filter 4.
- the non-wrap filter includes a filter material and an outer shell layer with which the filter material is formed in a cylindrical shape, and the outer shell layer can be obtained by thermoforming the filter material.
- a wrapping paper may be omitted.
- a powder supply path 421 is provided in the mouthpiece filter unit 42 located at the mouthpiece end side, penetrating through the mouthpiece filter unit 42 in the axial direction, and the cavity 43 and the mouthpiece end are in communication with each other through the powder supply path 421. Further, the filter 4 is wrapped with the tipping paper 3, thereby being united with the tobacco rod 2 into one piece.
- a paper produced from a plant fiber is typically used as the tipping paper 3A but a sheet of a chemical fiber of a polymer (polypropylene, polyethylene, nylon, etc.) or a polymer sheet may be used or a metal foil such as aluminum foil may be used.
- the filter 4 may contain a flavoring agent such as menthol.
- a method of adding the flavoring agent is not limited to a particular one; a known method is providing a string-shaped substance with the flavoring agent adsorbed thereto in the filter 4, containing the flavoring agent in a filling in the filter 4, or providing a material prepared by solidifying the flavoring agent, such as a capsule, in the filter 4, for example.
- a plurality of vents (hereinafter referred to as "cavity region vent") 31, through which air (outside air) for ventilation is introduced into the filter 4 to dilute the mainstream smoke, are annularly formed in the tipping paper 3 at a position corresponding to the cavity 43.
- an appropriate wrapping paper with a high breathability(high air-permeability) is used as the wrapping paper 45, thereby allowing the air introduced from the outside through the cavity region vent 31 of the tipping paper 3 to pass therethrough, entering the cavity 43.
- This is beneficial in increasing a strength of the wrapping paper 45 and making it less bendable.
- a wrapping paper that is not breathable or less breathable may be used as the wrapping paper 45.
- the wrapping paper 45 desirably has a vent that is open at a position corresponding to the cavity region vent 31.
- a pre-holed tipping paper that is, the tipping paper 3 with the cavity region vent 31 formed in advance, is preferably used in the present embodiment. This makes it unlikely to cause damage to the powder content 44 accommodated in the cavity 43 as compared with a case where the cavity region vent 31 is formed using, for example, an on-machine laser.
- a Vf value a ratio of an inflow rate of air from the filter to a total airflow rate.
- a tar value of the cigarette is designed in accordance with the Vf value, thereby allowing the powder formed by crushing the powder content 44 to be delivered as much as possible.
- the cavity 43 is a space defined inside the filter 4, in particular, a columnar space surrounded by a surface of a rear end of the upstream filter unit 41, a surface of a front end of the mouthpiece filter unit 42, and the wrapping paper 45.
- the cavity 43 only has to have a size sufficient to accommodate the powder content 44.
- the cavity 43 needs to have a size sufficient to accommodate the plurality of powder contents 44.
- a shape of the cavity 43 is not limited to a particular one.
- the powder content 44 is a spherical lump of the base powder and turned into powder when an external force is applied thereto.
- the external force is, for example, a force stronger than a force to be applied during production or transportation or a force stronger than an inhale force during smoking.
- the external force is exemplified by a force (crushing force) applied by a smoker with his or her fingers.
- a breaking strength for powdering the powder content 44 is in a range from 5N to 60N.
- the breaking strength for powdering the powder content 44 is preferably in a range from 20N to 30N, and more preferably in a range from 20N to 25N.
- a shape of the powder content 44 is not limited to a particular one and may be an ellipsoid, a column, a hollow cylinder, a circular cone, a polygonal pyramid, a torus, a polyhedron such as a cube or a rectangular parallelepiped, or a combination thereof.
- the base powder that constitutes the powder content 44 at least partly has a particle size allowing for passing through the powder supply path 421.
- the particle size of the base powder may be set in a range from 10 ⁇ m to 300 ⁇ m.
- the powder content 44 may be produced by mixing a nucleating agent, that is, the base powder, with an adequate amount of water added thereto and then forming and drying it. Further, a binder may be added as a material of the powder content 44. Further, a flavoring agent may be added to the nucleating agent along with water.
- a nucleating agent monosaccharide, disaccharide, polysaccharide, or derivatives thereof is usable.
- ketotriose dihydroxyacetone
- aldotriose glycolaldehyde
- ketotetrose erythrulose
- aldotetrose erythrose, threose
- pentose ketopentose ribulose, xylulose
- aldopentose ribose, arabinose, xylose, lyxose
- deoxysugar deoxyribose
- ketohexose psicose, fructose, sorbose, tagatose
- aldohexose allose, altrose, glucose, mannose, gulose, idose, galactose, talose
- deoxysugar sedoheptulose
- sucrose lactose
- maltose trehalose
- turanose cellobiose
- raffinose sedoheptulose
- binder water soluble polymers such as dextrin, gelatin, gum arabic, polyvinyl alcohol, and carboxymethyl cellulose are usable.
- An addition amount of the binder is preferably 10 wt% or less with respect to the nucleating agent.
- the flavoring agent being added to the nucleating agent is not limited to a particular one and an existing flavoring agent may be used; however, a powder flavoring agent and an oil flavoring agent are particularly suitable.
- Typical examples of the powder flavoring agent include chamomile, fenugreek, menthol, mint, cinnamon, and herb that are in powder form.
- oil flavoring agent examples include lavender, cinnamon, cardamom, celery, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, mint, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, fennel, pimento, ginger, anise, coriander, and coffee.
- powder flavoring agents and oil flavoring agents may be used solely or mixed in use.
- a grain size thereof is preferably 500 ⁇ m or less.
- the flavoring agent is preferably substantially soluble in liquid or a mouth.
- an addition amount of the flavoring component is preferably 10 wt% or less with respect to the nucleating agent.
- the taste component examples include citric acid, tartaric acid, glutamic acid Na, neotame, thaumatin, stevia, sorbitol, xylitol, erythritol, aspartame, rutin, hesperidin, oxalic acid, tannic acid, catechin, naringin, quinine, quinic acid, limonin, caffeine, capsaicin, vitamins, amino acids, polyphenols, alginic acid, flavonoid, and lecithin.
- the taste component is preferably substantially soluble in liquid or a mouth.
- An addition amount of the taste component is preferably 10 wt% or less with respect to the nucleating agent.
- the powder content 44 may be in a form of a plastic capsule containing powder, a tablet compact, or granules.
- Fig. 3 is a view illustrating a cross-sectional shape of the powder supply path 421 in a cross section of the mouthpiece filter unit 42 according to Embodiment 1.
- the cross section of the powder supply path 421 according to the present embodiment is in a form of an opening having a shape of a single windmill as a whole.
- the powder supply path 421 has a central connection portion 4210 located at a central side of the cross section of the mouthpiece filter unit 42 and a plurality of holes 4211 that extend from the central connection portion 4210 toward an outer peripheral side of the cross section of the mouthpiece filter unit 42.
- an opening area of each of the holes 4211 is relatively large as compared with an opening area of the central connection portion 4210.
- each of the holes 4211 of the powder supply path 421 is gradually widened from a side of the base end (an end portion connected with the central connection portion 4210) toward a side of the distal end. For this reason, each of the holes 4211 of the powder supply path 421 has a relatively wide (large) opening width at an outer peripheral region 4211a located at the outer peripheral side of the cross section of the mouthpiece filter unit 42 as compared with at a central region 4211b located at the central side of the cross section.
- the powder supply path 421 of the mouthpiece filter unit 42 has the cross section that does not allows the powder content 44 in lump form to pass therethrough. For this reason, since the powder content 44 in lump form accommodated in the cavity 43 does not pass through the powder supply path 421, it is possible to reduce discharge of the powder content 44 in lump form out of the filter 4 through the powder supply path 421. Meanwhile, when a smoker crushes the powder content 44 in lump form by, for example, applying an external force, turning the powder content 44 into powder form, the powder of the powder content 44 is allowed to pass through the powder supply path 421. As a result, the smoker is allowed to easily inhale the powder at a desired timing, enjoying a taste from the taste component, a scent from the flavoring component, or both.
- the powder supply path 421 has the plurality of holes 4211 that extend in mutually different directions from the central connection portion 4210, which is located at the central side of the cross section of the mouthpiece filter unit 42, toward the outer peripheral side.
- an increase in a cross-sectional area of the powder supply path 421 is favorable in terms of an increase in a delivery amount (supply amount) of the powder during inhale by the smoker, simply increasing the cross-sectional area of the powder supply path 421 leads to frequent occurrence of unintended spilling of the powder (powder spillage) not during inhale by the smoker.
- Examples of the above unintended powder spillage include a case where the powder spills outside through the powder supply path 421 as a mouthpiece side of the filter 4 is turned downward while the smoker does not put the filter 4 in his or her mouth.
- the plurality of holes 4211 extend in mutually different directions from the central connection portion 4210, which is located at the central side of the cross section of the mouthpiece filter unit 42, toward the outer peripheral side, thus allowing opening regions not to be concentrated at one spot in the cross section of the mouthpiece filter unit 42 but to be distributed at the outer peripheral side. This makes it possible to ensure, after the powder content 44 in lump form is crushed into powder form, a total opening area enough to ensure a sufficient delivery amount (supply amount) of the powder during inhale while reducing unintended powder spillage not during inhale.
- the powder supply path 421 has the plurality of holes 4211 that radially extend from the central connection portion 4210 toward the outer peripheral side, so that the opening regions can be more favorably distributed in the cross section of the mouthpiece filter unit 42, making it much easier to ensure the delivery amount of the powder during inhale while favorably reducing unintended powder spillage after the powder content 44 is crushed.
- the powder of the crushed powder content 44 in the cavity 43 is accumulated at the outer peripheral side of the cavity 43 (wrapping paper 45).
- distributing the opening regions of the powder supply path 421 more at the outer peripheral side of the mouthpiece filter unit 42 is favorable in terms of an increase in the delivery amount of the powder during inhale.
- the powder supply path 421 according to the present embodiment allows for increasing the delivery amount of the powder during inhale.
- each of the holes 4211 of the powder supply path 421 has a relatively wide opening width at the outer peripheral region 4211a as compared with at the central region 4211b, a large opening area is easily ensured at the outer peripheral side of the cross section of the mouthpiece filter unit 42. As a result, it is possible to further increase the delivery amount of the powder during inhale.
- the number of the holes 4211 of the powder supply path 421 in a case where the number of the holes 4211 is three or more, it is possible to reduce variation in the delivery amount of the powder during inhale due to a posture of a smoker who holds the filter 4. That is, the three or more holes 4211 extending from the central connection portion 4210 makes it possible to stably deliver the powder during inhale irrespective of any posture taken when the filter 4 is held. Further, the holes 4211 of the powder supply path 421 according to the present embodiment are located every constant angle (120°) in a circumferential direction of the mouthpiece filter unit 42.
- the holes 4211 radially extend from the central connection portion 4210 at regular intervals in the circumferential direction of the mouthpiece filter unit 42. This makes it possible to stably deliver the powder during inhale irrespective of the posture of a smoker who holds the filter 4.
- an upper limit of the number of the holes 4211 of the powder supply path 421 is not limited to a particular one. However, in a case where the number of the holes 4211 is six or more, majority of the mouthpiece filter unit 42 becomes the opening region, making it likely to reduce an effect in reducing powder spillage not during inhale. Accordingly, in terms of ensuring the delivery amount of the powder during inhale while reducing unintended powder spillage not during inhale, the number of the holes 4211 that extend from the central connection portion 4210 is preferably in a range from three to five.
- the distal ends of the holes 4211 of the powder supply path 421 are spaced from the wrapping paper 45 of the mouthpiece filter unit 42 with the filter fiber interposed between each of the distal ends of the holes 4211 and the wrapping paper 45. Since the holes 4211 are formed in a manner not to extend until the distal ends of the holes 4211 reach the wrapping paper 45 as described above, an edge portion (outermost peripheral portion) of the mouthpiece filter unit 42 does not become an opening and, thus, it is possible to further reduce unintended powder spillage not during inhale.
- the base ends of the plurality of holes 4211 are connected to each other via the central connection portion 4210, becoming a continuous opening. For this reason, in producing the mouthpiece filter unit 42, it is possible to produce the mouthpiece filter unit 42 using a single mandrel and evenly fill a region other than the powder supply path 421 in the cross section of the mouthpiece filter unit 42 with the filter fiber. That is, it is possible to stabilize a production quality of the mouthpiece filter unit 42.
- a circumferential length of the filter 4 according to the present embodiment is preferably in a range from 16 mm to 25 mm, more preferably in a range from 22 to 25 mm.
- the length of the mouthpiece filter unit 42 is preferably in a range from 5 mm to 15 mm, more preferably in a range from 7 to 10 mm.
- a length of the upstream filter unit 41 which is given by subtracting a length of the cavity 43 and a length of the powder supply path 421 from a total length (27 to 30 mm), is preferably in a range from 6 mm to 17 mm, more preferably in a range from 11 to 17 mm.
- a diameter of the powder content in lump form accommodated in the cavity 43 is not particularly limited as long as it is smaller than the diameter and length of the cavity 43; however, a larger ratio of a volume of the powder content 44 in lump form to a volume of the cavity 43 allows the powder to be accumulated higher when the powder content 44 in lump form is crushed, making the delivery easier during inhale. Accordingly, in a case where the length of the cavity 43 is 6 mm, an example is an embodiment where the diameter of the powder content 44 in lump form is at least 4 mm and less than 6 mm.
- the upstream filter unit 41 may be 14 mm, the cavity 43 may be 6 mm, and the mouthpiece filter unit 42 may be 7 mm.
- the upstream filter unit 41 may be 11 mm, the cavity 43 may be 6 mm, and the mouthpiece filter unit 42 may be 10 mm.
- the upstream filter unit 41 may be 17 mm, the cavity 43 may be 6 mm, and the mouthpiece filter unit 42 may be 7 mm.
- the upstream filter unit 41 may be 14 mm, the cavity 43 may be 6 mm, and the mouthpiece filter unit 42 may be 10 mm.
- specifications that cause less bend or crease when a smoker crushes the powder content 44 in lump form by applying an external force thereto are preferably selected for the wrapping paper 45 of the filter 4.
- a basis weight of the wrapping paper 45 is preferably in a range from 50 to 200 g/m 2 and more preferably determined in a range from 50 to 110 g/m 2 .
- the air-permeability (breathability) of the wrapping paper 45 is preferably 1000 to 10000 [C.U].
- the air permeability of the wrapping paper 45 is preferably 200 to 3000 [C.U].
- the above cigarette 1 was produced and an evaluation test was performed to measure a powder delivery amount during inhale and a powder spillage amount not during inhale.
- the length of the upstream filter unit 41 was 14 mm
- the length of the cavity 43 was 7 mm
- the length of the mouthpiece filter unit 42 was 6 mm.
- the base powder of the powder content 44 was accommodated in the cavity 43 on the assumption of a crushed state of the powder content 44.
- 50 mg lactose (Pharmatose 100M, manufactured by DFE pharma) was used as the base powder of the powder content 44.
- Fig. 4 indicates results of the evaluation test of the powder delivery amount and the powder spillage amount according to Examples and Comparative Examples.
- Targets for the evaluation test were Examples 1 to 5 and Comparative Examples 1 and 2.
- Fig. 5 illustrates shapes of the powder supply path according to Examples and Comparative Examples.
- Comparative Example 1 is a center hole filter including a mouthpiece filter unit with a single powder supply path.
- Comparative Example 2 includes a mouthpiece filter unit with three powder supply paths that penetrate in an axial direction.
- a smoking machine illustrated in Fig. 6 was used to measure the powder delivery amount.
- an inhale experiment was performed in an unlit state using a single-holder smoking machine manufactured by Borgwaldt KC GmbH and the powder delivery amount was measured.
- an inhale flow rate was 35 mL/2 sec
- the number of inhale actions was five
- the number of cigarettes for measurement was three.
- a powder collecting pad (Cambridge pad) was removed every inhale and measured in weight with an electronic balance and the powder delivery amount was calculated from a difference in weight between before and after inhale.
- the powder spillage amount was measured using a powder content produced by adding 80 wt% lactose to water and forming it in a sphere with a weight of 50 mg and a diameter of 4.5 mm and then drying it stepwise at 25°C for five minutes, at 70°C for four minutes, and at 200°C for four minutes.
- the powder content 44 in lump form was vibrated for five times after crushed with a filter side in a cigarette form turned downward and the powder spillage amount was measured with an electronic balance. The number of cigarettes for measurement was three.
- a cigarette 1A according to Embodiment 2 will be described.
- the description will be made focusing on a difference from the cigarette 1 according to Embodiment 1 illustrated in Fig. 1 to Fig. 3 .
- Fig. 7 is a schematic configuration view of the cigarette 1A according to Embodiment 2.
- the filter 4 of the cigarette 1A is provided with a vent (hereinafter, referred to as "upstream filter unit region vent") 31A that penetrates at a position, in the tipping paper 3 and the wrapping paper 45, corresponding to the upstream filter unit 41.
- a cigarette 1B according to Embodiment 3 will be described.
- the description will be made focusing on a difference from the cigarette 1 according to Embodiment 1 illustrated in Fig. 1 to Fig. 3 and the cigarette 1A according to Embodiment 2 illustrated in Fig. 7 .
- Fig. 8 is a schematic configuration view of the cigarette 1B according to Embodiment 3.
- the filter 4 of the cigarette 1B is provided with the cavity region vent 31 illustrated in Fig. 2 and the upstream filter unit region vent 31A illustrated in Fig. 7 in the tipping paper 3.
- the filter 4 of the cigarette 1B is provided with the vents for intake of dilution air on both the cavity 43 and the upstream filter unit 41.
- the vents for intake of dilution air on both the cavity 43 and the upstream filter unit 41.
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Abstract
Description
- The present invention relates to a smoking article and a filter for a smoking article.
- There is known a cigarette that allows powder in a filter to be inhaled to enjoy a taste, a scent, or both. For example,
Patent document 1 discloses a smoking article with a filter including: a powder content that is a lump of base powder containing at least either one of a taste component or a flavoring component, the powder content being turned into powder by applying an external force thereto; a cavity where the powder content is accommodated; and a flow path through which the cavity is in communication with a mouthpiece end, the flow path letting the powder through. - [Patent document 1] International Publication No.
WO 2016/181843 - Regarding the filter described in
Patent document 1, an inner diameter of the flow path for the powder is reduced to be smaller than an outer diameter of the lump of powder content, thereby making it possible to reduce powder spillage, that is, spilling of the powder at an unintended timing such as during production or transportation. - Here, an increase in a cross-sectional area of the flow path for the powder in the filter is more favorable in terms of an increase in a delivery amount (supply amount) of the powder. Accordingly,
Patent document 1 discloses an embodiment where a plurality of flow paths penetrate through a mouthpiece-side filter in the axial direction. It is true that the plurality of flow paths provided in the filter increase a total cross-sectional area of the flow path for the powder, making it easy to ensure the delivery amount of the powder. However, to independently arrange the plurality of flow paths in a cross section of the filter, it is necessary to produce the filter using a plurality of mandrels. Since it is difficult to evenly fill spaces between the mandrels with a filter fiber, a production quality of the filter is likely to be unstable. - It should be noted that the above problems are not limited to a cigarette but may apply to any types of smoking articles including a cigar, a cigarillo, a smoking tool using electronic device heating, carbon heat source, or the like, and a non-heated smoking tool for tobacco.
- In view of the above problems, an object of the present invention, which relates to a filter for a smoking article that allows powder containing at least either one of a test component or a flavoring component to be inhaled, is to provide a technology that enables ensuring a delivery amount of the powder during inhale while reducing powder spillage not during inhale, and stabilizing a production quality of the filter.
- To solve the above problems, according to the present invention, base powder containing at least either one of a taste component or a flavoring component is formed in a lump of powder content that is turned into powder by application of an external force, and a powder supply path provided in a mouthpiece filter unit has a central connection portion located at a central side of a cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- More specifically, a smoking article according to the present invention includes: a tobacco rod including tobacco shreds; and a filter coupled to an end portion of the tobacco rod via a tipping paper, in which the filter includes: a powder content that includes a lump of base powder containing at least either one of a taste component or a flavoring component and is turned into powder by application of an external force; a cavity where the powder content is accommodated; and a mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, and in a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- Examples of the smoking article include a cigarette, a cigar, a cigarillo, a smoking tool that allows for inhaling a smoke flavor, an aroma, or both of tobacco using electronic device heating, carbon heat source, or the like, and a non-heated smoking tool that allows for inhaling a smoke flavor, an aroma, or both of tobacco.
- Further, each of the holes of the powder supply path may have a relatively large opening width at an outer peripheral region located at the outer peripheral side of the cross section of the mouthpiece filter unit as compared with at a central region located at the central side of the cross section.
- Further, the powder supply path may have the holes that are at least three and not more than five in number.
- Further, the plurality of holes of the powder supply path may radially extend from the central connection portion.
- Further, in the cross section of the mouthpiece filter unit, a filter fiber that provides the mouthpiece filter unit may be interposed between a distal end of each of the holes of the powder supply path and a wrapping paper of the mouthpiece filter unit.
- Here, the present invention may be identified as a filter for the above smoking article. Specifically, a filter for a smoking article according to the present invention includes: a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force; a cavity where the powder content is accommodated; and a mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, and in a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- It should be noted that the means for solving the problems according to the present invention may be employed in combination as much as possible.
- According to the present invention, regarding a filter for a smoking article that allows a smoker to inhale powder containing at least either one of a taste component or a flavoring component at a desired timing, it is possible to ensure a delivery amount of the powder during inhale while reducing powder spillage not during inhale and to stabilize a production quality of the filter.
-
- [
FIG.1] Fig. 1 illustrates an exterior perspective view of a cigarette according toEmbodiment 1. - [
FIG.2] Fig. 2 illustrates a longitudinal sectional view of a relevant portion of the cigarette according toEmbodiment 1. - [
FIG.3] Fig. 3 is a view illustrating a cross-sectional shape of a powder supply path in a cross section of a mouthpiece filter unit according toEmbodiment 1. - [
FIG.4] Fig. 4 is a view indicating results of an evaluation test of powder delivery amounts and powder spillage amounts according to Examples and Comparative Examples. - [
FIG.5] Fig. 5 is a view illustrating shapes of powder supply paths according to Examples and Comparative Examples. - [
FIG.6] Fig. 6 is a view illustrating a smoking machine used for measuring the powder delivery amounts of Examples and Comparative Examples. - [
FIG.7] Fig. 7 illustrates a longitudinal sectional view of a relevant portion of a cigarette according toEmbodiment 2. - [
FIG.8] Fig. 8 illustrates a longitudinal sectional view of a relevant portion of a cigarette according toEmbodiment 3. - Detailed description will be made below on an embodiment of a filter-equipped cigarette, that is, an example of a smoking article according to the present invention, with reference to the drawings. Regarding dimensions, materials, shapes, relative locations, etc. of components described in the present embodiment, the technical scope of the invention is by no means limited only thereto unless otherwise specified.
-
Fig. 1 is an exterior perspective view of acigarette 1 according toEmbodiment 1.Fig. 2 is a longitudinal sectional view of a relevant portion of thecigarette 1 according toEmbodiment 1. Thecigarette 1 is a filter-equipped cigarette including atobacco rod 2 and afilter 4 coupled to an end of thetobacco rod 2 via a tippingpaper 3. - The
tobacco rod 2 includestobacco shreds 21 wrapped with acigarette paper 22, being formed in a columnar shape (stick shape) . Thefilter 4 is a member for filtering, when letting a mainstream smoke caused by smoking thecigarette 1 through, a smoke component from the mainstream smoke, and is formed in a columnar shape with substantially the same diameter as that of thetobacco rod 2. - The
filter 4 is wrapped with awrapping paper 45 and the tippingpaper 3 and coupled to a rear end side of thetobacco rod 2 via thetipping paper 3. The tippingpaper 3 wraps an end portion of thetobacco rod 2 and thefilter 4 into one piece, thereby coupling (uniting) them. The end portion to be coupled to thefilter 4 in a longitudinal direction (axial direction) of thetobacco rod 2 is hereinafter referred to as a "rear end" and an end portion opposite thereto as a "front end" (distal end). Further, an end portion to be coupled to thetobacco rod 2 in a longitudinal direction (axial direction) of thefilter 4 is referred to as a "front end" and an end portion opposite to the front end as a "mouthpiece end." Further, a cross section along a longitudinal direction (axial direction) of the cigarette 1 (tobacco rod 2, filter 4) is defined as a " longitudinal section" and a cross section along a direction orthogonal thereto as a "cross section." Further, "upstream" and "downstream" refer to relative positional relationships based on a stream of the mainstream smoke. It should be noted that a reference symbol CL inFig. 2 denotes a center axis of the cigarette 1 (tobacco rod 2, filter 4). - The
filter 4 includes anupstream filter unit 41 coupled to the rear end side of thetobacco rod 2, amouthpiece filter unit 42 located at a mouthpiece end side, ahollow cavity 43 defined between theupstream filter unit 41 and themouthpiece filter unit 42, and apowder content 44 accommodated in thecavity 43. Thepowder content 44, which is a lump of base powder containing at least either one of a taste component or a flavoring component, is turned into powder when crushed by a smoker. - The
upstream filter unit 41 and themouthpiece filter unit 42 each include a filter fiber such as acetate formed in a columnar shape, for example. Theupstream filter unit 41 and themouthpiece filter unit 42 are wrapped into one piece with thewrapping paper 45. Thewrapping paper 45 used for thefilter 4 may be a breathable(air-permeable) wrapping paper usable for typical products or a non-breathable wrapping paper. A paper produced from a plant fiber is typically used as a material of thewrapping paper 45 but a sheet of a chemical fiber of a polymer (polypropylene, polyethylene, nylon, etc.) or a polymer sheet may be used or a metal foil such as aluminum foil may be used. It should be noted that a so-called non-wrap filter may be used as thefilter 4. The non-wrap filter includes a filter material and an outer shell layer with which the filter material is formed in a cylindrical shape, and the outer shell layer can be obtained by thermoforming the filter material. In a case of using the non-wrap filter, a wrapping paper may be omitted. - A
powder supply path 421 is provided in themouthpiece filter unit 42 located at the mouthpiece end side, penetrating through themouthpiece filter unit 42 in the axial direction, and thecavity 43 and the mouthpiece end are in communication with each other through thepowder supply path 421. Further, thefilter 4 is wrapped with the tippingpaper 3, thereby being united with thetobacco rod 2 into one piece. - A paper produced from a plant fiber is typically used as the tipping paper 3A but a sheet of a chemical fiber of a polymer (polypropylene, polyethylene, nylon, etc.) or a polymer sheet may be used or a metal foil such as aluminum foil may be used. It should be noted that the
filter 4 may contain a flavoring agent such as menthol. A method of adding the flavoring agent is not limited to a particular one; a known method is providing a string-shaped substance with the flavoring agent adsorbed thereto in thefilter 4, containing the flavoring agent in a filling in thefilter 4, or providing a material prepared by solidifying the flavoring agent, such as a capsule, in thefilter 4, for example. - A plurality of vents (hereinafter referred to as "cavity region vent") 31, through which air (outside air) for ventilation is introduced into the
filter 4 to dilute the mainstream smoke, are annularly formed in thetipping paper 3 at a position corresponding to thecavity 43. In this case, an appropriate wrapping paper with a high breathability(high air-permeability) is used as the wrappingpaper 45, thereby allowing the air introduced from the outside through the cavity region vent 31 of the tippingpaper 3 to pass therethrough, entering thecavity 43. This is beneficial in increasing a strength of the wrappingpaper 45 and making it less bendable. However, a wrapping paper that is not breathable or less breathable may be used as the wrappingpaper 45. In this case, the wrappingpaper 45 desirably has a vent that is open at a position corresponding to thecavity region vent 31. It should be noted that a pre-holed tipping paper, that is, the tippingpaper 3 with the cavity region vent 31 formed in advance, is preferably used in the present embodiment. This makes it unlikely to cause damage to thepowder content 44 accommodated in thecavity 43 as compared with a case where the cavity region vent 31 is formed using, for example, an on-machine laser. Further, by adjusting an opening area of the cavity region vent 31 (in a case of providing a plurality of cavity region vents 31, a total opening area), it is possible to adjust a Vf value (a ratio of an inflow rate of air from the filter to a total airflow rate). A tar value of the cigarette is designed in accordance with the Vf value, thereby allowing the powder formed by crushing thepowder content 44 to be delivered as much as possible. - The
cavity 43 is a space defined inside thefilter 4, in particular, a columnar space surrounded by a surface of a rear end of theupstream filter unit 41, a surface of a front end of themouthpiece filter unit 42, and thewrapping paper 45. Thecavity 43 only has to have a size sufficient to accommodate thepowder content 44. In a case of accommodating a plurality ofpowder contents 44, thecavity 43 needs to have a size sufficient to accommodate the plurality ofpowder contents 44. Further, a shape of thecavity 43 is not limited to a particular one. - The
powder content 44 is a spherical lump of the base powder and turned into powder when an external force is applied thereto. The external force is, for example, a force stronger than a force to be applied during production or transportation or a force stronger than an inhale force during smoking. The external force is exemplified by a force (crushing force) applied by a smoker with his or her fingers. For example, a breaking strength for powdering thepowder content 44 is in a range from 5N to 60N. The breaking strength for powdering thepowder content 44 is preferably in a range from 20N to 30N, and more preferably in a range from 20N to 25N. Further, a shape of thepowder content 44 is not limited to a particular one and may be an ellipsoid, a column, a hollow cylinder, a circular cone, a polygonal pyramid, a torus, a polyhedron such as a cube or a rectangular parallelepiped, or a combination thereof. Further, the base powder that constitutes thepowder content 44 at least partly has a particle size allowing for passing through thepowder supply path 421. For example, the particle size of the base powder may be set in a range from 10 µm to 300 µm. - The
powder content 44 may be produced by mixing a nucleating agent, that is, the base powder, with an adequate amount of water added thereto and then forming and drying it. Further, a binder may be added as a material of thepowder content 44. Further, a flavoring agent may be added to the nucleating agent along with water. As the nucleating agent, monosaccharide, disaccharide, polysaccharide, or derivatives thereof is usable. Examples include ketotriose (dihydroxyacetone), aldotriose (glyceraldehyde), ketotetrose (erythrulose), aldotetrose (erythrose, threose), pentose ketopentose (ribulose, xylulose), aldopentose (ribose, arabinose, xylose, lyxose), deoxysugar (deoxyribose), ketohexose (psicose, fructose, sorbose, tagatose), aldohexose (allose, altrose, glucose, mannose, gulose, idose, galactose, talose), deoxysugar (fucose, fuculose, rhamnose), sedoheptulose, sucrose, lactose, maltose, trehalose, turanose, cellobiose, raffinose, melezitose, maltotriose, acarbose, stachyose, glucose, starch (amylose, amylopectin), cellulose, dextrin, glucan, and fructose. These monosaccharide, disaccharide, polysaccharide, or derivatives thereof may be used solely or mixed in use. The nucleating agent is preferably substantially soluble in a mouth. - Further, as the binder, water soluble polymers such as dextrin, gelatin, gum arabic, polyvinyl alcohol, and carboxymethyl cellulose are usable. An addition amount of the binder is preferably 10 wt% or less with respect to the nucleating agent.
- The flavoring agent being added to the nucleating agent is not limited to a particular one and an existing flavoring agent may be used; however, a powder flavoring agent and an oil flavoring agent are particularly suitable. Typical examples of the powder flavoring agent include chamomile, fenugreek, menthol, mint, cinnamon, and herb that are in powder form. Further, typical examples of the oil flavoring agent include lavender, cinnamon, cardamom, celery, clove, cascarilla, nutmeg, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon, orange, mint, cinnamon, caraway, cognac, jasmine, chamomile, menthol, cassia, ylang-ylang, sage, spearmint, fennel, pimento, ginger, anise, coriander, and coffee. These powder flavoring agents and oil flavoring agents may be used solely or mixed in use. In a case of using the powder flavoring agent, a grain size thereof is preferably 500 µm or less. The flavoring agent is preferably substantially soluble in liquid or a mouth. Further, an addition amount of the flavoring component is preferably 10 wt% or less with respect to the nucleating agent.
- Examples of the taste component include citric acid, tartaric acid, glutamic acid Na, neotame, thaumatin, stevia, sorbitol, xylitol, erythritol, aspartame, rutin, hesperidin, oxalic acid, tannic acid, catechin, naringin, quinine, quinic acid, limonin, caffeine, capsaicin, vitamins, amino acids, polyphenols, alginic acid, flavonoid, and lecithin. The taste component is preferably substantially soluble in liquid or a mouth. An addition amount of the taste component is preferably 10 wt% or less with respect to the nucleating agent. It should be noted that the
powder content 44 may be in a form of a plastic capsule containing powder, a tablet compact, or granules. - Here,
Fig. 3 is a view illustrating a cross-sectional shape of thepowder supply path 421 in a cross section of themouthpiece filter unit 42 according toEmbodiment 1. As illustrated inFig. 3 , the cross section of thepowder supply path 421 according to the present embodiment is in a form of an opening having a shape of a single windmill as a whole. More specifically, in the cross section of themouthpiece filter unit 42, thepowder supply path 421 has acentral connection portion 4210 located at a central side of the cross section of themouthpiece filter unit 42 and a plurality ofholes 4211 that extend from thecentral connection portion 4210 toward an outer peripheral side of the cross section of themouthpiece filter unit 42. Here, an opening area of each of theholes 4211 is relatively large as compared with an opening area of thecentral connection portion 4210. - The plurality of
holes 4211 of thepowder supply path 421, each of which is in a blade shape, radially extend in mutually different directions from thecentral connection portion 4210. Further, distal ends (end portions at a side opposite to the central connection portion 4210) of theholes 4211 are located at positions spaced from the wrappingpaper 45 of themouthpiece filter unit 42 with the filter fiber, which constitutes themouthpiece filter unit 42, interposed between the distal ends of theholes 4211 and thewrapping paper 45. Further, in an example illustrated inFig. 3 , thepowder supply path 421 has threeholes 4211 that radially extend from thecentral connection portion 4210 toward the outer peripheral side. Further, an opening width of each of theholes 4211 of thepowder supply path 421 is gradually widened from a side of the base end (an end portion connected with the central connection portion 4210) toward a side of the distal end. For this reason, each of theholes 4211 of thepowder supply path 421 has a relatively wide (large) opening width at an outerperipheral region 4211a located at the outer peripheral side of the cross section of themouthpiece filter unit 42 as compared with at acentral region 4211b located at the central side of the cross section. - In the
cigarette 1 according to the present embodiment, thepowder supply path 421 of themouthpiece filter unit 42 has the cross section that does not allows thepowder content 44 in lump form to pass therethrough. For this reason, since thepowder content 44 in lump form accommodated in thecavity 43 does not pass through thepowder supply path 421, it is possible to reduce discharge of thepowder content 44 in lump form out of thefilter 4 through thepowder supply path 421. Meanwhile, when a smoker crushes thepowder content 44 in lump form by, for example, applying an external force, turning thepowder content 44 into powder form, the powder of thepowder content 44 is allowed to pass through thepowder supply path 421. As a result, the smoker is allowed to easily inhale the powder at a desired timing, enjoying a taste from the taste component, a scent from the flavoring component, or both. - Moreover, the
powder supply path 421 according to the present embodiment has the plurality ofholes 4211 that extend in mutually different directions from thecentral connection portion 4210, which is located at the central side of the cross section of themouthpiece filter unit 42, toward the outer peripheral side. Here, although an increase in a cross-sectional area of thepowder supply path 421 is favorable in terms of an increase in a delivery amount (supply amount) of the powder during inhale by the smoker, simply increasing the cross-sectional area of thepowder supply path 421 leads to frequent occurrence of unintended spilling of the powder (powder spillage) not during inhale by the smoker. Examples of the above unintended powder spillage include a case where the powder spills outside through thepowder supply path 421 as a mouthpiece side of thefilter 4 is turned downward while the smoker does not put thefilter 4 in his or her mouth. - Accordingly, regarding the
powder supply path 421 according to the present embodiment, the plurality ofholes 4211 extend in mutually different directions from thecentral connection portion 4210, which is located at the central side of the cross section of themouthpiece filter unit 42, toward the outer peripheral side, thus allowing opening regions not to be concentrated at one spot in the cross section of themouthpiece filter unit 42 but to be distributed at the outer peripheral side. This makes it possible to ensure, after thepowder content 44 in lump form is crushed into powder form, a total opening area enough to ensure a sufficient delivery amount (supply amount) of the powder during inhale while reducing unintended powder spillage not during inhale. In particular, thepowder supply path 421 according to the present embodiment has the plurality ofholes 4211 that radially extend from thecentral connection portion 4210 toward the outer peripheral side, so that the opening regions can be more favorably distributed in the cross section of themouthpiece filter unit 42, making it much easier to ensure the delivery amount of the powder during inhale while favorably reducing unintended powder spillage after thepowder content 44 is crushed. - Here, when the smoker puts the
filter 4 of thecigarette 1 in his or her mouth for inhale, the powder of the crushedpowder content 44 in thecavity 43 is accumulated at the outer peripheral side of the cavity 43 (wrapping paper 45). Thus, distributing the opening regions of thepowder supply path 421 more at the outer peripheral side of themouthpiece filter unit 42 is favorable in terms of an increase in the delivery amount of the powder during inhale. Accordingly, since thecentral connection portion 4210 is relatively small and theholes 4211 each have a larger opening area than thecentral connection portion 4210, thepowder supply path 421 according to the present embodiment allows for increasing the delivery amount of the powder during inhale. Moreover, since each of theholes 4211 of thepowder supply path 421 has a relatively wide opening width at the outerperipheral region 4211a as compared with at thecentral region 4211b, a large opening area is easily ensured at the outer peripheral side of the cross section of themouthpiece filter unit 42. As a result, it is possible to further increase the delivery amount of the powder during inhale. - Next, description will be made on the number of the
holes 4211 of thepowder supply path 421. Here, in a case where the number of theholes 4211 is three or more, it is possible to reduce variation in the delivery amount of the powder during inhale due to a posture of a smoker who holds thefilter 4. That is, the three ormore holes 4211 extending from thecentral connection portion 4210 makes it possible to stably deliver the powder during inhale irrespective of any posture taken when thefilter 4 is held. Further, theholes 4211 of thepowder supply path 421 according to the present embodiment are located every constant angle (120°) in a circumferential direction of themouthpiece filter unit 42. In other words, theholes 4211 radially extend from thecentral connection portion 4210 at regular intervals in the circumferential direction of themouthpiece filter unit 42. This makes it possible to stably deliver the powder during inhale irrespective of the posture of a smoker who holds thefilter 4. - It should be noted that an upper limit of the number of the
holes 4211 of thepowder supply path 421 is not limited to a particular one. However, in a case where the number of theholes 4211 is six or more, majority of themouthpiece filter unit 42 becomes the opening region, making it likely to reduce an effect in reducing powder spillage not during inhale. Accordingly, in terms of ensuring the delivery amount of the powder during inhale while reducing unintended powder spillage not during inhale, the number of theholes 4211 that extend from thecentral connection portion 4210 is preferably in a range from three to five. - Further, the distal ends of the
holes 4211 of thepowder supply path 421 are spaced from the wrappingpaper 45 of themouthpiece filter unit 42 with the filter fiber interposed between each of the distal ends of theholes 4211 and thewrapping paper 45. Since theholes 4211 are formed in a manner not to extend until the distal ends of theholes 4211 reach thewrapping paper 45 as described above, an edge portion (outermost peripheral portion) of themouthpiece filter unit 42 does not become an opening and, thus, it is possible to further reduce unintended powder spillage not during inhale. - Further, regarding the
powder supply path 421 according to the present embodiment, the base ends of the plurality ofholes 4211 are connected to each other via thecentral connection portion 4210, becoming a continuous opening. For this reason, in producing themouthpiece filter unit 42, it is possible to produce themouthpiece filter unit 42 using a single mandrel and evenly fill a region other than thepowder supply path 421 in the cross section of themouthpiece filter unit 42 with the filter fiber. That is, it is possible to stabilize a production quality of themouthpiece filter unit 42. - It should be noted that a circumferential length of the
filter 4 according to the present embodiment is preferably in a range from 16 mm to 25 mm, more preferably in a range from 22 to 25 mm. Further, although thepowder supply path 421 with a shorter length makes it easier to inhale the powder, themouthpiece filter unit 42 with an extremely reduced length is likely to be united with theupstream filter unit 41 into one piece with the wrappingpaper 45 with less accuracy. Accordingly, the length of themouthpiece filter unit 42 is preferably in a range from 5 mm to 15 mm, more preferably in a range from 7 to 10 mm. Further, a length of theupstream filter unit 41, which is given by subtracting a length of thecavity 43 and a length of thepowder supply path 421 from a total length (27 to 30 mm), is preferably in a range from 6 mm to 17 mm, more preferably in a range from 11 to 17 mm. - Further, a diameter of the powder content in lump form accommodated in the
cavity 43 is not particularly limited as long as it is smaller than the diameter and length of thecavity 43; however, a larger ratio of a volume of thepowder content 44 in lump form to a volume of thecavity 43 allows the powder to be accumulated higher when thepowder content 44 in lump form is crushed, making the delivery easier during inhale. Accordingly, in a case where the length of thecavity 43 is 6 mm, an example is an embodiment where the diameter of thepowder content 44 in lump form is at least 4 mm and less than 6 mm. - Here, examples of combination of the lengths of the portions of the
filter 4 are given. In a case where the total length of thefilter 4 is 27 mm, theupstream filter unit 41 may be 14 mm, thecavity 43 may be 6 mm, and themouthpiece filter unit 42 may be 7 mm. Likewise, in a case where the total length of thefilter 4 is 27 mm, theupstream filter unit 41 may be 11 mm, thecavity 43 may be 6 mm, and themouthpiece filter unit 42 may be 10 mm. Further, in a case where the total length of thefilter 4 is 30 mm, theupstream filter unit 41 may be 17 mm, thecavity 43 may be 6 mm, and themouthpiece filter unit 42 may be 7 mm. Further, in a case where the total length of thefilter 4 is 30 mm, theupstream filter unit 41 may be 14 mm, thecavity 43 may be 6 mm, and themouthpiece filter unit 42 may be 10 mm. - Further, specifications that cause less bend or crease when a smoker crushes the
powder content 44 in lump form by applying an external force thereto are preferably selected for thewrapping paper 45 of thefilter 4. For example, a basis weight of the wrappingpaper 45 is preferably in a range from 50 to 200 g/m2 and more preferably determined in a range from 50 to 110 g/m2. Further, the air-permeability (breathability) of the wrappingpaper 45 is preferably 1000 to 10000 [C.U]. Further, in a case of using a pre-holed tipping paper, that is, the tippingpaper 3 with the cavity region vent 31 formed in advance, the air permeability of the wrappingpaper 45 is preferably 200 to 3000 [C.U]. - Next, the present invention will be further specifically described with reference to Examples but the present invention is by no means limited to the description of Examples below insofar as being within the spirit thereof. The
above cigarette 1 was produced and an evaluation test was performed to measure a powder delivery amount during inhale and a powder spillage amount not during inhale. Regarding thefilter 4 of thecigarette 1 used for the evaluation test, the length of theupstream filter unit 41 was 14 mm, the length of thecavity 43 was 7 mm, and the length of themouthpiece filter unit 42 was 6 mm. Further, the base powder of thepowder content 44 was accommodated in thecavity 43 on the assumption of a crushed state of thepowder content 44. As the base powder of thepowder content 44, 50 mg lactose (Pharmatose 100M, manufactured by DFE pharma) was used. -
Fig. 4 indicates results of the evaluation test of the powder delivery amount and the powder spillage amount according to Examples and Comparative Examples. Targets for the evaluation test were Examples 1 to 5 and Comparative Examples 1 and 2.Fig. 5 illustrates shapes of the powder supply path according to Examples and Comparative Examples. Comparative Example 1 is a center hole filter including a mouthpiece filter unit with a single powder supply path. Comparative Example 2 includes a mouthpiece filter unit with three powder supply paths that penetrate in an axial direction. - A smoking machine illustrated in
Fig. 6 was used to measure the powder delivery amount. In Examples, an inhale experiment was performed in an unlit state using a single-holder smoking machine manufactured by Borgwaldt KC GmbH and the powder delivery amount was measured. In performing the inhale experiment, an inhale flow rate was 35 mL/2 sec, the number of inhale actions was five, and the number of cigarettes for measurement was three. Further, a powder collecting pad (Cambridge pad) was removed every inhale and measured in weight with an electronic balance and the powder delivery amount was calculated from a difference in weight between before and after inhale. Further, the powder spillage amount was measured using a powder content produced by adding 80 wt% lactose to water and forming it in a sphere with a weight of 50 mg and a diameter of 4.5 mm and then drying it stepwise at 25°C for five minutes, at 70°C for four minutes, and at 200°C for four minutes. In a measurement test of the powder spillage amount, thepowder content 44 in lump form was vibrated for five times after crushed with a filter side in a cigarette form turned downward and the powder spillage amount was measured with an electronic balance. The number of cigarettes for measurement was three. - As indicated in the test results of
Fig. 4 , in comparison with Comparative Example 1 with the single center hole as the powder supply path, it has been found that Examples can each ensure a larger delivery amount of the powder than that of Comparative Example 1, while none of Examples is considerably different in powder spillage amount. Further, as compared with Comparative Example 2 with three independent powder supply paths, none of Examples is significantly different in either delivery amount of the powder or powder spillage amount. However, Comparative Example 2, which has the three independent powder supply paths, requires the use of three mandrels for producing the mouthpiece filter unit. Thus, it is supposed to be difficult to evenly fill spaces between the mandrels with the filter fiber. Therefore, as compared with Comparative Example 2, Examples are excellent in being able to provide a mouthpiece filter unit with stable quality. - Next, a
cigarette 1A according toEmbodiment 2 will be described. Here, the description will be made focusing on a difference from thecigarette 1 according toEmbodiment 1 illustrated inFig. 1 to Fig. 3 .Fig. 7 is a schematic configuration view of thecigarette 1A according toEmbodiment 2. Regarding thefilter 4 of thecigarette 1A is provided with a vent (hereinafter, referred to as "upstream filter unit region vent") 31A that penetrates at a position, in thetipping paper 3 and thewrapping paper 45, corresponding to theupstream filter unit 41. - Next, a
cigarette 1B according toEmbodiment 3 will be described. Here, the description will be made focusing on a difference from thecigarette 1 according toEmbodiment 1 illustrated inFig. 1 to Fig. 3 and thecigarette 1A according toEmbodiment 2 illustrated inFig. 7 .Fig. 8 is a schematic configuration view of thecigarette 1B according toEmbodiment 3. Thefilter 4 of thecigarette 1B is provided with the cavity region vent 31 illustrated inFig. 2 and the upstream filter unit region vent 31A illustrated inFig. 7 in thetipping paper 3. - The
filter 4 of thecigarette 1B according to the present embodiment is provided with the vents for intake of dilution air on both thecavity 43 and theupstream filter unit 41. Thus, by adjusting a balance of air inflow through these vents, it is possible to change the delivery amount of the powder (for example, flavoring powder) formed by crushing thepowder content 44 without changing the Vf value of thefilter 4 as a whole. This makes it possible to optimally design a gustatory (taste) strength provided by the flavoring powder while keeping a tar value of thecigarette 1B constant, for example. - The preferred embodiments of the present invention have been described above; however, a filter for a smoking article according to the present invention may be implemented by combining the embodiments as much as possible.
-
- 1
- cigarette
- 2
- tobacco rod
- 3
- tipping paper
- 4
- filter
- 41
- upstream filter unit
- 42
- mouthpiece filter unit
- 43
- cavity
- 44
- powder content
- 45
- wrapping paper
- 421
- powder supply path
- 4210
- central connection portion
- 4211
- hole
Claims (6)
- A smoking article comprising:a tobacco rod including tobacco shreds; anda filter coupled to an end portion of the tobacco rod via a tipping paper, whereinthe filter includes:a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force;a cavity where the powder content is accommodated; anda mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, andin a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
- The smoking article according to claim 1, wherein each of the holes of the powder supply path has a relatively large opening width at an outer peripheral region located at the outer peripheral side of the cross section of the mouthpiece filter unit as compared with at a central region located at the central side of the cross section.
- The smoking article according to claim 1 or 2, wherein the powder supply path has the holes that are at least three and not more than five in number.
- The smoking article according to any one of claims 1 to 3, wherein the plurality of holes of the powder supply path radially extend from the central connection portion.
- The smoking article according to any one of claims 1 to 4, wherein in the cross section of the mouthpiece filter unit, a filter fiber that provides the mouthpiece filter unit is interposed between a distal end of each of the holes of the powder supply path and a wrapping paper of the mouthpiece filter unit.
- A filter for a smoking article, the filter comprising:a powder content that includes a lump of base powder including at least either one of a taste component or a flavoring component and is turned into powder by application of an external force;a cavity where the powder content is accommodated; anda mouthpiece filter unit that is located continuously at a downstream side of the cavity, and is provided with a powder supply path formed along an axial direction for allowing a mouthpiece end to communicate with the cavity and supplying the powder from the cavity to the mouthpiece end, andin a cross section of the mouthpiece filter unit, the powder supply path has a central connection portion located at a central side of the cross section of the mouthpiece filter unit and a plurality of holes that extend in mutually different directions from the central connection portion toward an outer peripheral side of the cross section.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/JP2017/046187 WO2019123645A1 (en) | 2017-12-22 | 2017-12-22 | Tobacco product, and filter for tobacco product |
Publications (2)
Publication Number | Publication Date |
---|---|
EP3729976A1 true EP3729976A1 (en) | 2020-10-28 |
EP3729976A4 EP3729976A4 (en) | 2021-09-22 |
Family
ID=66994519
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
EP17935052.5A Withdrawn EP3729976A4 (en) | 2017-12-22 | 2017-12-22 | Tobacco product, and filter for tobacco product |
Country Status (7)
Country | Link |
---|---|
US (1) | US20200315245A1 (en) |
EP (1) | EP3729976A4 (en) |
JP (1) | JP6896102B2 (en) |
KR (1) | KR20200094772A (en) |
CN (1) | CN111511227B (en) |
EA (1) | EA039351B1 (en) |
WO (1) | WO2019123645A1 (en) |
Families Citing this family (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2023084733A1 (en) * | 2021-11-12 | 2023-05-19 | 日本たばこ産業株式会社 | Non-combustion heating-type stick |
Family Cites Families (10)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US2695617A (en) * | 1951-04-18 | 1954-11-30 | Archie E Warnberg | Slip-on cigarette tip |
US3370594A (en) * | 1965-02-16 | 1968-02-27 | Brown & Williamson Tobacco | Filters for tobacco smoke |
KR910000142B1 (en) * | 1987-05-29 | 1991-01-21 | 니혼 다바고 상교오 가부시기가이샤 | Filter for cigarette |
ZA200909228B (en) * | 2009-12-23 | 2014-11-26 | Tobacco Res And Dev Inst (Pty) Ltd | Fluid release mechanism |
US8671951B2 (en) * | 2010-03-26 | 2014-03-18 | Philip Morris Usa Inc. | Methods of manufacturing cigarettes and filter subassemblies with squeezable flavor capsule |
EA027166B1 (en) * | 2012-02-21 | 2017-06-30 | ДжейТи ИНТЕРНЕШНЛ СА | Smoking article filter |
WO2014128973A1 (en) * | 2013-02-25 | 2014-08-28 | 日本たばこ産業株式会社 | Cigarette |
TW201433270A (en) * | 2013-02-27 | 2014-09-01 | Japan Tobacco Inc | Cigarette |
JP6485154B2 (en) | 2015-03-25 | 2019-03-20 | コニカミノルタ株式会社 | Printing system, server device, and terminal device |
WO2016181843A1 (en) | 2015-05-13 | 2016-11-17 | 日本たばこ産業株式会社 | Filtered cigarette product, and filter for cigarette product |
-
2017
- 2017-12-22 CN CN201780097921.6A patent/CN111511227B/en active Active
- 2017-12-22 JP JP2019559995A patent/JP6896102B2/en active Active
- 2017-12-22 EA EA202091538A patent/EA039351B1/en unknown
- 2017-12-22 EP EP17935052.5A patent/EP3729976A4/en not_active Withdrawn
- 2017-12-22 WO PCT/JP2017/046187 patent/WO2019123645A1/en unknown
- 2017-12-22 KR KR1020207019003A patent/KR20200094772A/en active IP Right Grant
-
2020
- 2020-06-19 US US16/906,825 patent/US20200315245A1/en not_active Abandoned
Also Published As
Publication number | Publication date |
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JP6896102B2 (en) | 2021-06-30 |
KR20200094772A (en) | 2020-08-07 |
CN111511227B (en) | 2022-07-22 |
JPWO2019123645A1 (en) | 2020-11-19 |
EA039351B1 (en) | 2022-01-17 |
EP3729976A4 (en) | 2021-09-22 |
EA202091538A1 (en) | 2020-09-16 |
US20200315245A1 (en) | 2020-10-08 |
WO2019123645A1 (en) | 2019-06-27 |
CN111511227A (en) | 2020-08-07 |
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