EP2835061B1 - Flüssigkeitshaltige kapsel und rauchartikel ausgerüstet mit der kapsel - Google Patents

Flüssigkeitshaltige kapsel und rauchartikel ausgerüstet mit der kapsel Download PDF

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Publication number
EP2835061B1
EP2835061B1 EP13790801.8A EP13790801A EP2835061B1 EP 2835061 B1 EP2835061 B1 EP 2835061B1 EP 13790801 A EP13790801 A EP 13790801A EP 2835061 B1 EP2835061 B1 EP 2835061B1
Authority
EP
European Patent Office
Prior art keywords
capsule
protrusion
wall
end wall
thin
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.)
Active
Application number
EP13790801.8A
Other languages
English (en)
French (fr)
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EP2835061A1 (de
EP2835061A4 (de
Inventor
Ryoji Fujita
Hiroki NAKAAE
Katsuo Kato
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Japan Tobacco Inc
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Japan Tobacco Inc
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Filing date
Publication date
Application filed by Japan Tobacco Inc filed Critical Japan Tobacco Inc
Publication of EP2835061A1 publication Critical patent/EP2835061A1/de
Publication of EP2835061A4 publication Critical patent/EP2835061A4/de
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Publication of EP2835061B1 publication Critical patent/EP2835061B1/de
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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
    • 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
    • A24D3/02—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
    • A24D3/025—Final operations, i.e. after the filter rod forming process
    • A24D3/0258—Means for making grooves
    • 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
    • A24D3/0275—Manufacture of tobacco smoke filters for filters with special features
    • A24D3/0291—Manufacture of tobacco smoke filters for filters with special features for hollow tipped filters, e.g. recess filters
    • 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
    • A24F—SMOKERS' REQUISITES; MATCH BOXES; SIMULATED SMOKING DEVICES
    • A24F47/00—Smokers' requisites not otherwise provided for

Definitions

  • the present invention relates to a capsule containing a liquid, which is to be incorporated in a smoking article such as a filter cigarette, and a smoking article in which the capsule is incorporated.
  • a liquid such as water or an aqueous solution
  • a filter of a smoking article such as a filter cigarette
  • the capsule is incorporated into the filter in the state containing the liquid, and a user breaks the capsule, prior to smoking of the filter cigarette. Therefore, the liquid is spouted out from the broken capsule, and the spouted liquid soaks into the filter.
  • the user adds an external force to the capsule via the filter by pinching the filter between the fingers and breaks the capsule.
  • the capsule when the capsule has a cylindrical shape, the capsule can include a plurality of grooves on one end wall thereof, and these grooves extend radially from an axis of the capsule (see FIG. 2 of Patent Document 1).
  • the grooves When the capsule is crushed, the grooves are broken, and the liquid in the capsule is spouted through the broken grooves.
  • a capsule can include two capsule half bodies, and these capsule half bodies are connected to each other via an annular seal (see FIG. 4C of Patent Document 2). According to the capsule like this, when the capsule is crushed, the annular seal is broken, and the liquid in the capsule is spouted through the broken seal.
  • the cooling unit includes the capsule containing a cooling liquid, and a hollow fragile protrusion equipped at the capsule (see FIG. 3 of Patent Document 3).
  • the cooling unit like this, when the capsule is crushed, the fragile protrusion section is ruptured, the cooling liquid in the capsule is spouted into the cigarette through the ruptured fragile protrusion section, and the spouted cooling liquid extinguishes the burning cone of the cigarette.
  • EP0491952 A1 discloses an article for smoking, by which a smoker inhales and tastes volatile content of flavor in the smoke of tobacco directly from a cigarette or through a holder such as pipe, comprising liquid-tight flexible tubular casings in which a resiliently deformable cylindrical plastic vessel containing liquid flavor whose viscosity is 520 cP or lower and a liquid-absorbing layer for absorbing and keeping liquid flavor are internally disposed.
  • US2005/268926 A1 discloses a cigarette comprised of a tobacco portion having an adequate amount of tobacco and a cigarette paper enrolling the tobacco, a filter portion having an adequate amount of filter and a wrapping paper enrolling the filter, the filter portion being connected with the tobacco portion end by end, and a fire-extinguishing unit embedded into the filter portion and having a fire-extinguishing liquid, which is ejectable to extinguish the ash fire of the cigarette while the tobacco portion is squeezed by an external force.
  • Patent Document 1 The grooves of Patent Document 1, the annular seal of Patent Document 2 and the fragile protrusion of Patent Document 3 all facilitate breakage of the capsules to some degree.
  • An object of the present invention is to provide a capsule containing a liquid in which easiness in breakability is enhanced and a breaking position can be determined, and a smoking article in which the capsule is incorporated.
  • the end wall of the capsule body when the circumferential wall of the capsule body receives an external force and is crushed, the internal pressure of the capsule increases, and therefore, the end wall bulges toward an outside. Such bulging of the end wall pulls the thin-walled region outward in the radial direction of the capsule body with respect to the protrusion. Therefore, in the thin-walled region of the end wall, the specific area adjacent to the root of the protrusion is especially stretched. Therefore, the thickness of the specific area further decreases, and the capsule is broken first in the specific area. Once the thin-walled region is broken in this manner, the liquid in the capsule is spouted from the broken spot of the thin-walled region.
  • the end wall of the capsule body may have a truncated cone shape or a cup shape.
  • the end wall can include a central portion surrounding the protrusion and having a diameter smaller than a diameter of the end wall, and an annular portion connecting the central portion and the circumferential wall of the capsule body, and the thin-walled region is formed in the central portion.
  • the central portion may be a concave wall in a spherical shape.
  • the thin-walled region may be partially provided in the central portion, and in this case, the thin-walled region may include a plurality of V-shaped grooves extending radially to an outer circumference of the central portion from the protrusion.
  • the end wall may be flat, and in this case, the thin-walled region may include a plurality of V-shaped grooves extending radially to an outer circumference of the end wall from the protrusion.
  • the capsule body may have an annular extended portion integrally extending from an outer circumferential edge of the end wall, and the extended portion like this and the end wall cooperate with each other to form a distal end portion of the capsule into a concave shape.
  • the thin-walled region may include a plurality of V-shaped grooves extending radially to the extended portion from the protrusion, for example.
  • the end wall may be a concave wall in a spherical shape, and in this case, the thin-walled region may have an annular shape adjacent to the protrusion and surrounding the protrusion.
  • the capsule body may have a plurality of ribs on the circumferential wall, and these ribs are disposed at intervals in a circumferential direction of the capsule body.
  • the capsule body has a flange formed on an outer circumference of the open end, and in this case, the closure wall is a seal member in a sheet shape, the closure wall being connected to the flange to close the open end liquid-tightly.
  • the present invention provides a smoking article equipped with one of the aforementioned capsules.
  • the specific area adjacent to the root of the protrusion is broken first in the thin-walled region of the end wall of the capsule body, and from the broken spot, the liquid in the capsule spouts into the smoking article.
  • the aforementioned extended portion and ribs increase the rigidity of the circumferential wall in the capsule body. Therefore, when an external force is applied to the circumferential wall of the capsule body, the end wall is deformed into an elliptical shape, and the deformation of the end wall like this significantly stretches the specific area of the thin-walled region located at the root of the protrusion, and breaks the specific area first.
  • the capsule of the present invention is equipped with the combination of the thin-walled region and the protrusion, and therefore, the combination thereof determines the breaking position in the thin-walled region, while enhancing breakage of the thin-walled region, that is, easiness in breakability of the capsule. Further, the smoking article of the present invention can easily and accurately spout the liquid in the capsule into the smoking article.
  • the filter cigarette 10 as a smoking article is shown, and a capsule of the present invention is incorporated in the filter cigarette 10.
  • the filter cigarette 10 comprises a cigarette 12 and a composite filter 16 that is connected to one end of the cigarette 12 via winding of tip paper 14.
  • the composite filter 16 includes filter elements 18 and 20 each in a cylindrical shape, and these filter elements 18 and 20 are separated from each other in an axial direction of the cigarette 12.
  • the filter elements 18 and 20 each have a filter material of acetate fibers, paper or the like, for example, and a wrapping material in which the filter material is wrapped.
  • the filter element 18 which is positioned at the cigarette 12 side may have particles of activated carbon, an aroma material or the like inside the filter element 18.
  • a capsule 22 containing a liquid of the present invention is disposed between the filter elements 18 and 20, and the capsule 22 and the filter elements 18 and 20 are disposed in tubular shaped paper (not illustrated) to form the composite filter 16.
  • a user applies an external force F to the capsule 22 from outside of the composite filter 16, prior to smoking the filter cigarette 10 or between puffs.
  • the external force easily breaks the capsule 22 in a specific breaking position thereof. Therefore, the liquid in the capsule 22 is spouted toward the filter element 18 from the breaking position, and soaks into the filter element 18.
  • a water-soluble component contained in mainstream smoke of the cigarette 12 dissolves in the liquid soaked into the filter element 18, and thereby, the water-soluble component in the mainstream smoke which passes through the filter element 18 is decreased. As a result, flavor and taste of the cigarette 12 change. If an aromatic is contained in the liquid, fragrance and flavor of the aroma material are added to the mainstream smoke.
  • FIG. 2 to FIG. 4 show a capsule 22a of embodiment E1.
  • the capsule 22a includes a substantially cylindrical capsule body 24, and the capsule body 24 is elastically deformable.
  • the capsule body 24 has an end wall 26 and an open end 28, and the end wall 26 closes a distal end of the capsule body 24.
  • the capsule body 24 like this is obtained by injection-molding a synthetic resin.
  • a synthetic resin for example, as the synthetic resin forming the capsule body 24, low density polyethylene (NOVATEC LD manufactured by Japan Polyethylene Corporation) is usable.
  • the capsule 22a has such a size as to be capable of being disposed in a cylindrical cavity which is secured between the filter elements 18 and 20 of the composite filter 16.
  • a length along a longitudinal direction of the capsule 22a is preferably shorter than a length along a longitudinal direction of the cavity by approximately 1 to 3 mm
  • a maximum outside diameter of the capsule 22a is preferably smaller than an inside diameter of the cavity (diameters of the filter elements 18 and 20) by approximately 0.5 to 2 mm. More specifically, the maximum outside diameter of the capsule 22a is approximately 6 mm.
  • the capsule 22a has the aforementioned size with respect to the cavity, not only production of the composite filter 16 which contains the capsule 22 in the cavity is facilitated, but also the user can easily recognize the capsule 22a in the composite filter 16, and further, a position and an orientation of the capsule 22a in the cavity are stabilized.
  • the end wall 26 has a truncated cone shape, and includes a central portion 30 and a tapered portion 34.
  • the central portion 30 has a diameter smaller than a diameter of the end wall 26, while the tapered portion 34 forms an annular portion which connects the central portion 30 and a circumferential wall 32 of the capsule body 24.
  • the central portion 30 has a diameter Dc (see FIG. 4 ) of 2 mm, for example, and a taper angle ⁇ of the tapered portion 34 is 45°, for example.
  • an outside diameter, an inside diameter and a wall thickness of the circumferential wall 32 are gradually decreased slightly toward the tapered portion 34 from the open end 28.
  • the circumferential wall 32 also forms a taper shape, and the diameter of the end wall 26 is smaller than a diameter of the open end 28, and a thickness of an end of the circumferential wall 32 adjacent to the end wall 26 corresponds to a thickness Tt of the tapered portion 34.
  • the thickness Tt is 0.3 mm.
  • a thickness Tc of the central portion 30 is smaller than the thickness Tt of the tapered portion 34.
  • the thickness Tc is preferably from 0.1 mm to 0.2 mm.
  • a whole of the central portion 30 forms a thin-walled region.
  • a rod-shaped protrusion 36 is formed in a center of the central portion 30, and the protrusion 36 protrudes toward outside the capsule body 24.
  • a diameter Dp and a protrusion length L of the protrusion 36 are respectively 0.4 to 0.5 mm and 0.4 mm, for example.
  • the open end 28 of the capsule body 24 has a flange 38 on an outer circumference thereof, and a thickness and an outside diameter of the flange 38 are respectively 0.5 mm and 6.6 mm, for example.
  • the open end 28 is liquid-tightly closed by a seal member 40 as a closure wall.
  • the seal member 40 is a sheet having flexibility, and is bonded to the flange 38 without inhibiting the elastic deformation of the capsule body 24.
  • the seal member 40 is formed by a polyamide/low density polyethylene laminate sheet (NY #15/DL/LC-21, 50 ⁇ m, manufactured by TAMAPOLY CO., LTD.), and is bonded to the flange 38 by a heat seal.
  • a contact area (a heat seal area) between the seal member 40 and the flange 38 increases when the seal member 40 is bonded to the flange 38, and therefore, the seal strength of the seal member 40 is increased.
  • the capsule body 24 and the seal member 40 described above form the capsule 22a, and the capsule 22a like this contains a liquid inside it.
  • a liquid which is contained in the capsule 22a, in addition to distilled water, an aqueous solution in which an additive such as an aroma material is dissolved in the distilled water is conceivable.
  • the capsule 22a of embodiment E1 described above contains 130 mg of liquid, for example.
  • the capsule 22a When the capsule 22a is disposed in the composite filter 16, the capsule 22a has a posture in which the end wall 26 is oriented to the filter element 18 at the cigarette 12 side, as is obvious from FIG. 1 .
  • the user holds the composite filter 16 with the fingers via the tip paper 14 prior to smoking the filter cigarette 10 or between puffs, and the external force F (see FIG. 1 ) can be applied to the capsule 22a in the composite filter 16 from both sides in a diameter direction of the capsule 22a.
  • the external force F like this is followed by the elastic deformation of the capsule body 24, and crushes the capsule 22a. As a result, an internal pressure of the capsule 22a is increased.
  • the circumferential wall 32 of the capsule body 24 has the flange 38 at the open end 28, and slightly forms the taper shape, and therefore, in the circumferential wall 32, a portion at the end wall 26 side is crushed more easily as compared with a portion at the flange 38 side.
  • the increase of the internal pressure in the capsule 22a causes the end wall 26 to bulge toward the outside. That is, the taper portion 34 of the end wall 26 is elastically deformed so as to expand toward the outside. The elastic deformation of the tapered portion 34 pulls the central portion 30 toward the outside in the radial direction with respect to the protrusion 36. Therefore, a specific area adjacent to a root of the protrusion 36 in the central portion 30 is especially stretched, and the thickness of the specific area significantly decreases. As a result, the central portion 30 is broken first in the specific area. In this case, the protrusion 36 becomes a trigger at the time of breaking the specific area of the central portion 30 and has a function of determining the breaking position in the central portion 30 and facilitating breakage of the central portion 30 as a thin-walled region.
  • the breaking spot is limited to the specific area adjacent to the protrusion 36. Further abrupt reduction in the internal pressure is sensed by the user through the fingers of the user, and the user can confirm the breakage of the capsule 22a.
  • the liquid in the capsule 22a spouts toward the filter element 18 from the breaking spot of the central portion 30, and soaks into the filter element 18.
  • the breaking position of the central portion 30 is limited to the specific position adjacent to the root of the protrusion 36, that is, the center of the end wall 26 as described above, the liquid spouted from the capsule 22a soaks into the center of the end surface in the filter element 18, and forms a liquid soaked area LA ( FIG. 1 ) in a central region in the filter element 18. Accordingly the liquid spouted from the capsule 22a does not wet the tubular shaped paper and the tip paper of the composite filter 16.
  • the filter cigarette 10 is smoked in a state in which the liquid soaks into the filter element 18, the water-soluble component contained in the mainstream smoke dissolves into the liquid in the filter element 18, and therefore, the water-soluble component in the mainstream smoke passing through the filter element 18 decreases, whereby the flavor and the taste of the mainstream smoke change.
  • an aroma material is contained in the liquid, the fragrance and flavor of the aroma material are added to the mainstream smoke, and the user also can enjoy the fragrance and the flavor of the aroma material at the same time.
  • the present invention is not limited to the capsule 22a of embodiment E1 described above.
  • FIG. 5 to FIG. 8 respectively show modifications of the capsule 22a of embodiment E1. Capsules 22a 1 to 22a 4 of these modifications differ in the following points when compared with the capsule 22a of embodiment E1 or the capsule of the modification already described.
  • the capsule 22a 1 in FIG. 5 differs from the capsule 22a in a point that a protrusion length L1 of the protrusion 36 is increased to 1.0 mm.
  • the capsule 22a 2 in FIG. 6 differs from the capsule 22a 1 in a point that the end wall 26 has a cup shape.
  • the capsule 22a 3 in FIG. 7 differs from the capsule 22a in a point that a diameter Dc1 of the central portion 30 is increased to 3 mm.
  • the capsule 22a 4 in FIG. 8 differs from the capsule 22a 3 in a point that the protrusion length L1 of the protrusion 36 is increased to 1.0 mm.
  • the capsule 22a 1 to 22a 4 have similar advantages to the advantage of the capsule 22a of embodiment E1.
  • FIG. 9 to FIG. 11 respectively show a capsule 22b of embodiment E2 and a part of the capsule 22b.
  • the capsule 22b differs from a group of the capsule 22a of embodiment E1 only in the shape of the central portion 30.
  • a central portion 42 has a plurality of V-shaped grooves 44 as a thin-walled region, while having a thickness Tc1 substantially the same as a thickness of the other region of the capsule body 24.
  • the V-shaped grooves 44 are disposed radially on an outer surface of the central portion 42 with the protrusion 36 as a center, and extend to an outer circumference of the central portion 42 from the root of the protrusion 36.
  • a V-shape angle ⁇ of each of the V-shaped grooves 44 is 90°, for example, and a thickness Tc2 of a bottom of the V-shaped groove 44 is 0.17 mm, for example.
  • the tapered portion 34 of the end wall 26 is expanded by elastic deformation as described above. Therefore, the bottom of each of the V-shaped grooves 44 is pulled outward in the radial direction of the end wall 26 with respect to the protrusion 36, the bottom is especially stretched at a specific area adjacent to the root of the protrusion 36, and the thickness of the bottom is reduced. As a result, the bottom of any of the V-shaped grooves 44 is broken first in the specific area, and from the breaking spot, the liquid in the capsule 22b is spouted.
  • FIG. 12 and FIG. 13 show a capsule 22c of embodiment E3.
  • a capsule 22c differs from the capsule 22a only in the shape of the central portion 30 of the end wall 26.
  • a central portion 46 of the capsule 22c is not flat, but is formed as a concave wall in a spherical shape which is recessed toward the inside of the capsule body 24, and has the diameter Dc and the wall thickness Tc.
  • the central portion 46 is pulled outward in the radial direction from the protrusion 36 when the external force F is applied to the capsule 22c, and the central portion 46 is broken first in a specific area adjacent to the protrusion 36.
  • FIG. 14 to FIG. 17 respectively show a capsule 22d of embodiment E4 and a part thereof.
  • the capsule 22d differs in the following point.
  • the end wall 26 of the capsule 22d does not have the tapered portion 34, and a whole of the end wall 26 is formed as a flat wall. Further, in the case of the capsule 22d, the V-shaped groove 44 extends to the outer circumference of the end wall 26 from the protrusion 36, and has a bottom of a thickness Tc3.
  • the thickness Tc3 is a value between Tc (0.12 mm) and Tc2 (0.17 mm), for example, 0.13 mm.
  • a plurality of thin ribs 48 are formed on an inner circumferential surface of the capsule body 24 as is obvious from FIG. 16 .
  • These ribs 48 are disposed at equal intervals in a circumferential direction of the capsule body 24, and extend in an axial direction of the capsule body 24 to the open end 28 from the end wall 26.
  • a thickness of the rib 48 is 0.2 mm.
  • a bottom of any of the V-shaped grooves 44 is broken first in a specific area adjacent to the root of the protrusion 36 when the external force F is applied to the capsule 22d.
  • FIG. 18 to FIG. 20 show a capsule 22e of embodiment E5.
  • the end wall 26 of the capsule body 24 is also formed as a recessed wall, and has an annular flat outer circumferential portion 70, and a central portion 72 which is recessed more than the outer circumferential portion 70, and the central portion 72 is formed as a spherical wall similarly to the central portion 46 of the aforementioned capsule 22c.
  • the central portion 72 includes the protrusion 36 in a center thereof and an annular region 74 as a thin-walled region.
  • the annular region 74 is adjacent to the root of the protrusion 36, surrounds the protrusion 36, and has the aforementioned thickness Tc.
  • a thickness of the central portion 72 gradually increases as it is closer to the outer circumferential portion 70 from the annular region 74, and as shown in FIG. 19 , an outer periphery of the central portion 72 connects to a corner edge at an inner side of an inner circumferential surface in the outer circumferential portion 70.
  • a distal end surface of the protrusion 36 and an outer end surface of the outer circumferential portion 70 are located on the same virtual plane.
  • FIG. 21 to FIG. 23 show a capsule 22f of embodiment E6.
  • the end wall 26 of the capsule body 24 is formed as a concave wall, and the outer circumferential portion 70 of the end wall 26 forms an extended portion of the circumferential wall 32.
  • a central portion 74 of the end wall 26 has a female conical shape, and is slightly recessed toward the inside of the capsule body 24.
  • a plurality of V-shaped grooves 44 are formed as thin-walled regions similarly to the capsule 22b in FIG. 9 . These V-shaped grooves 44 are disposed at equal intervals in the circumferential direction of the capsule body 24, and extend radially to the outer circumferential portion 70 from the protrusion 36. Note that in FIG. 22 , only one of the V-shaped grooves 44 is shown.
  • ribs 76 are integrally formed on the circumferential wall 32 of the capsule body 24. These ribs 76 extend in the axial direction of the capsule body 24 to the flange 38 from a distal end of the outer circumferential portion 70, and are disposed at equal intervals in the circumferential direction of the capsule body 24.
  • a width of the aforementioned rib 76 is not constant along the axial direction of the capsule body 24, and is gradually decreased toward the distal end of the outer circumferential portion 70 from the flange 38 as is obvious from FIG. 23 .
  • FIG. 24 shows breaking loads (average values and standard deviations (S. D.)) of the capsules 22a to 22f of embodiments E1 to E6 respectively.
  • the result of FIG. 24 is obtained by measuring the breaking loads at the point of time when the external force F is applied to the capsules 22a to 22f, and the central portions 30 and 46, or V-shaped grooves 44 of these capsules are broken at the aforementioned specific areas. Further, FIG. 24 also shows the measurement result of the breaking loads of the capsules in comparative examples C1 to C4 in combination.
  • Each of the capsules is filled with a liquid (distilled water) which occupies 94% of a capacity of the capsule, and in measurement of the breaking load, a creep meter (RHEOMETER II, manufactured by YAMADEN co., ltd.) is used.
  • a creep meter RHEOMETER II, manufactured by YAMADEN co., ltd.
  • the capsules of comparative examples C1 to C4 basically have structures similar to those of the capsules 22a to 22d of embodiments E1 to E4, but differ in the following point.
  • FIG. 25 and FIG. 26 show a capsule of comparative example C1.
  • the capsule of comparative example C1 has a capsule body which has a substantially hexagonal shape and is slightly tapered, and an end wall 50 in a shape of a flat hexagonal pyramid.
  • each ridge of the end wall 50 has V-shaped grooves 52a and 52b respectively on outer and inner sides of the ridge , and the V-shaped grooves 52a and 52b form a thin-walled region that extends along the ridge. Therefore, a thickness of a bottom of the V-shaped grooves 52a and 52b is smaller than a thickness (for example, 0.45 mm) of the ridge, and is 0.12 mm, for example.
  • any of the V-shaped grooves 52 of the end wall 50 is firstly broken in a bottom thereof when the aforementioned external force F is applied to the capsule.
  • FIG. 27 and FIG. 28 show a capsule of comparative example C2.
  • the capsule of comparative example C2 differs from the capsule of comparative example C1 in a point that the capsule of comparative example C2 includes an end wall 54 having a shape of a flat truncated hexagonal pyramid, and on each of ridges of the end wall 54, and a V-shaped groove 56 similar to the V-shaped grooves 52a and 52b is formed only on an inner side of the ridge, respectively.
  • any of the V-shaped grooves 56 of the end wall 54 is firstly broken in a bottom thereof, when the aforementioned external force F is applied to the capsule.
  • FIG. 29 and FIG. 30 show a capsule of comparative example C3.
  • the capsule of comparative example C3 is of the same type as the capsule of Patent Document 1 described above, and includes a cylindrical capsule body, a flat end wall 58, and a plurality of V-shaped grooves 60 as thin-walled regions which are formed on only an inner surface of the end wall 58. These V-shaped grooves 60 are radially distributed with a central portion of the end wall 58 left. Note that a thickness of a bottom of the V-shaped groove 60 is 0.13 mm.
  • a capsule of comparative example C4 differs from the capsule 22a only a point that the capsule of comparative example C4 does not have the protrusion 36, when the capsule is compared with the capsule 22a of embodiment E1.
  • the capsules of comparative examples C1 to C4 do not have the protrusions 36 which the capsules 22a to 22d of embodiments E1 to E4 have. Therefore, in the case of the capsules of comparative examples C1 to C4, the breaking position in the end wall cannot be determined. Further, the breaking loads of the capsules of embodiments E1 to E6 are smaller than the breaking loads of the capsules of comparative examples C2, C3 and C4. This shows that the protrusion 36 not only determines the breaking position in the end wall, but also contributes to reduction of the breaking load.
  • the end wall 26 has the annular outer circumferential portion 70 which protrudes outward from the central portion 72 in addition to the protrusion 36.
  • the outer circumferential portion 70 like this increases rigidity of the end wall 26. Therefore, in the case of the capsules 22e and 22f, the end wall 26 is deformed into an elliptical shape when the external force F applied to the capsule body 24 is transmitted to the end wall 26, and the central portion 72 is significantly pulled especially along a longitudinal axis of the ellipse.
  • the thin-walled regions (the annular region 74 and the V-shaped grooves 44) of the end wall 26 are easily broken at the root of the protrusion 36. Accordingly, as is obvious from FIG. 24 , the capsules 22e and 22f of embodiments E5 and E6 have the breaking loads smaller than the breaking loads of the capsules 22a to 22d of embodiments E1 to E4. The breaking loads of the capsules 22e and 22f are about the same as the breaking load of the seamless capsule incorporated in a commercially available filter cigarette.
  • the breaking loads of the capsule 22c were 64.4 N, 70.1 N, and 95.0 N respectively.
  • the breaking load of the capsule varies in accordance with the filling rate of the liquid contained in the capsule, and as the filling rate of the liquid is higher, the breaking load of the capsule decreases. Therefore, as long as a hindrance does not occur to manufacture of a capsule, a higher filling rate of the liquid into the capsule is desirable.
  • FIG. 31 to FIG. 33 relate to the capsule 22a, the capsule 22e and the capsule 22f, and show relations between loads repeatedly applied to the capsule bodies of the capsules and distortions of the end walls in the capsule bodies. As is obvious when FIG. 31 to FIG. 33 are compared, it is found that the capsules 22e and 22f are distorted significantly with small loads as compared with the capsule 22a.
  • the ribs 76 of the capsule 22f increase rigidity of the circumferential wall 32 more than the rigidity of the circumferential wall 32 of the capsule 22e.
  • the central portion 72 has the female conical shape, and therefore, the external force F transmitted to the end wall 26 effectively concentrates on the root of the protrusion 36.
  • the breaking load of the capsule 22f becomes smaller than the breaking load of the capsule 22e. Therefore, the capsule 22e may also have the ribs 76.
  • the outer circumferential portion 70 effectively works in inhibiting an undesired external force from being directly applied to the protrusion 36. Therefore, the possibility of the capsules 22e and 22f being undesirably broken can be decreased at the time of manufacture of filter cigarettes.
  • the capsule body 24 and the seal member 40 as a closure wall are both formed from low density polyethylene
  • the capsule body and the closure wall of the present invention can be also formed by a synthetic resin other than low density polyethylene, and are further formable from materials other than synthetic resins.
  • the capsule body 24 of the capsule 22a has a tapered shape in which the end wall 26 side has a small diameter
  • the capsule body of the present invention may be in a straight cylindrical shape, or a tapered shape in which the open end side has a small diameter.
  • the end wall of the capsule body of the present invention is not limited to the truncated conical shape, the cup shape, a flat shape, a concave shape, or the like illustrated in the aforementioned embodiment, and further, the central portion of the end wall is not limited to the flat wall or the spherical wall as illustrated, either.
  • the entire region of the end wall of the capsule body may form the thin-walled region, and the groove as the thin-walled region can have a shape other than the V-shape. Further, disposition of the groove is not limited to the radial shape, either.
  • the thickness of the thin-walled region is preferably from 0.12 mm to 0.17 mm in the range illustrated with respect to the capsule 22a, on the condition that the thickness of the thin-walled region is smaller than the thicknesses of the end wall and the circumferential wall of the capsule body.
  • the capsule body 24 of the capsule 22d has the plurality of ribs 48 on the inner circumferential surface thereof, whereas the capsule body 24 of the capsule 22f has the plurality of ribs 76 on the outer circumferential surface thereof.
  • These ribs 48 and 76 are also similarly applicable to the capsules of the other embodiments and the modifications described above.
  • the central portion 72 of the end wall 26 may be a flat wall, and the annular outer circumferential portion 70 (the extended portion of the circumferential wall 32) is also applicable to the capsules of the other embodiments and the modifications.
  • the capsule of the present invention includes the basic structure constituted of the capsule body, the thin-walled region, the protrusion and the closure wall, the other components (the shapes, disposition and the like) which the capsules of the respective embodiments have are applicable by being optionally combined with the capsules of the other embodiments.
  • the capsule of the present invention can be not only incorporated into the filter of a filter cigarette, but also incorporated similarly into various smoking articles equipped with filters.

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  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Cigarettes, Filters, And Manufacturing Of Filters (AREA)
  • Manufacturing Of Micro-Capsules (AREA)
  • Thermotherapy And Cooling Therapy Devices (AREA)
  • Medical Preparation Storing Or Oral Administration Devices (AREA)
  • Pens And Brushes (AREA)

Claims (13)

  1. Kapsel (22), die eine Flüssigkeit enthält und Folgendes umfasst:
    einen elastisch verformbaren Kapselkörper (24), der eine im Wesentlichen zylindrische Form aufweist und eine Endwand (26) umfasst, die ein distales Ende des Kapselkörpers verschließt, und ein offenes Ende (28) umfasst, das ein proximales Ende des Kapselkörpers öffnet;
    eine Verschlusswand (40), die an dem offenen Ende (28) des Kapselkörpers (24) angeordnet ist, wobei die Verschlusswand (40) das offene Ende (28) so verschließt, dass die Kapsel (22) mit der darin enthaltenen Flüssigkeit gebildet wird;
    eine dünnwandige Region (30, 44, 46, 74), die in der Endwand (26) des Kapselkörpers (24) ausgebildet ist, wobei die dünnwandige Region dünner ist als Dicken der Endwand (26) und einer Umfangswand (32) des Kapselkörpers (24); und
    einen Vorsprung (36), der integral an der Endwand (26) des Kapselkörpers (24) ausgebildet ist,
    dadurch gekennzeichnet, dass
    der Vorsprung (36) von der dünnwandigen Region in Richtung einer Außenseite der Kapsel (22) vorsteht, und wobei die Kapsel eine solche Größe hat, dass sie in einen Tabakartikel (10) integriert werden kann.
  2. Kapsel (22) nach Anspruch 1,
    wobei der Vorsprung (36) eine Position spezifiziert, die in der dünnwandigen Region in einem Bereich neben einer Wurzel des Vorsprungs (36) zuerst zerbrochen werden soll, wenn eine äußere Kraft radial an die Kapsel (22) angelegt wird.
  3. Kapsel (22) nach Anspruch 2,
    wobei die Endwand (26) eine trunkierte konische Form oder eine Napfform hat.
  4. Kapsel (22) nach Anspruch 2,
    wobei die Endwand (26) eine trunkierte konische Form oder eine Napfform hat und einen mittigen Abschnitt (30) umfasst, der den Vorsprung (36) umgibt und dessen Durchmesser kleiner ist als ein Durchmesser der Endwand (26), und einen ringförmigen Abschnitt (34) umfasst, der den mittigen Abschnitt (30) und die Umfangswand (32) des Kapselkörpers verbindet, und
    die dünnwandige Region in dem mittigen Abschnitt (30) ausgebildet ist.
  5. Kapsel (22) nach Anspruch 4,
    wobei der mittige Abschnitt eine konkave Wand (46) in einer Kugelform ist.
  6. Kapsel (22) nach Anspruch 4,
    wobei die dünnwandige Region mehrere V-förmige Nuten (44) umfasst, die sich von dem Vorsprung (36) radial zu einem Außenumfang des mittigen Abschnitts erstrecken.
  7. Kapsel (22) nach Anspruch 2,
    wobei die Endwand (26) flach ist und
    die dünnwandige Region mehrere V-förmige Nuten (44) umfasst, die sich von dem Vorsprung (36) radial zu einem Außenumfang der Endwand (26) erstrecken.
  8. Kapsel (22) nach Anspruch 2, wobei
    der Kapselkörper (24) einen ringförmigen verlängerten Abschnitt (70) aufweist, der sich integral von einem Außenumfangsrand der Endwand (26) erstreckt, und
    der verlängerte Abschnitt (70) und die Endwand (26) miteinander zusammenwirken, um einen distalen Endabschnitt der Kapsel (22) zu einer konkaven Form zu bilden.
  9. Kapsel nach Anspruch 8, wobei die dünnwandige Region mehrere V-förmige Nuten (44) umfasst, die sich von dem Vorsprung (36) radial zu dem verlängerten Abschnitt (70) erstrecken.
  10. Kapsel nach Anspruch 8, wobei
    die Endwand (26) eine konkave Wand in einer Kugelform ist und
    die dünnwandige Region (46) eine Ringform neben dem Vorsprung (36) aufweist und den Vorsprung (36) umgibt.
  11. Kapsel nach Anspruch 2,
    wobei der Kapselkörper (24) des Weiteren mehrere Rippen (48, 76) an der Umfangswand (32) umfasst und diese Rippen in Intervallen in einer Umfangsrichtung des Kapselkörpers (24) angeordnet sind.
  12. Kapsel nach einem der Ansprüche 1 bis 11, wobei
    der Kapselkörper (24) des Weiteren einen Flansch (38) umfasst, der an einem Außenumfang des offenen Endes (28) ausgebildet ist, und
    die Verschlusswand ein Dichtungselement (40) in einer Bahnform ist, wobei die Verschlusswand mit dem Flansch (38) verbunden ist, um das offene Ende flüssigkeitsdicht zu verschließen.
  13. Tabakartikel, der die Kapsel (22) nach einem der Ansprüche 1 bis 12 umfasst.
EP13790801.8A 2012-05-15 2013-04-26 Flüssigkeitshaltige kapsel und rauchartikel ausgerüstet mit der kapsel Active EP2835061B1 (de)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP2012111504 2012-05-15
JP2012227821 2012-10-15
PCT/JP2013/062417 WO2013172186A1 (ja) 2012-05-15 2013-04-26 液体が収容されたカプセル及びこのカプセルを備えた喫煙物品

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EP2835061A1 EP2835061A1 (de) 2015-02-11
EP2835061A4 EP2835061A4 (de) 2015-12-30
EP2835061B1 true EP2835061B1 (de) 2019-01-02

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JP (1) JP5815855B2 (de)
KR (1) KR101697415B1 (de)
CN (1) CN104379006B (de)
EA (1) EA027927B1 (de)
MY (1) MY182159A (de)
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US20170055574A1 (en) * 2015-08-31 2017-03-02 British American Tobacco (Investments) Limited Cartridge for use with apparatus for heating smokable material
CN109310145B (zh) * 2016-07-07 2021-10-08 菲利普莫里斯生产公司 用于收纳插入件单元的吸烟制品烟嘴
JP7216636B2 (ja) * 2016-07-27 2023-02-01 ジェイティー インターナショナル エス．エイ． 液体充填カプセルの製造方法および装置
CN107912808B (zh) * 2016-10-10 2021-04-02 湖南中烟工业有限责任公司 一种手捏式电子烟烟液胶囊
CN107912809A (zh) * 2016-10-10 2018-04-17 湖南中烟工业有限责任公司 一种电子烟烟液胶囊
CA3037842A1 (en) * 2016-10-24 2018-05-03 Jt International S.A. Filter element for a smoking article
KR20190078566A (ko) * 2016-10-31 2019-07-04 제이티 인터내셔널 소시에떼 아노님 액체-충전 방향성 캡슐을 갖는 흡연 제품
RU2749662C2 (ru) 2016-12-29 2021-06-16 Филип Моррис Продактс С.А. Генерирующее аэрозоль изделие, содержащее элемент доставки жидкости
CN111182801A (zh) * 2017-10-03 2020-05-19 日本烟草产业株式会社 带过滤嘴香烟物品
CN108523220A (zh) * 2018-06-20 2018-09-14 湖北中烟工业有限责任公司 一种改进的降温滤棒以及含有该滤棒的低温卷烟
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TWI489950B (zh) 2015-07-01
JP5815855B2 (ja) 2015-11-17
KR20150003247A (ko) 2015-01-08
EA027927B1 (ru) 2017-09-29
EP2835061A1 (de) 2015-02-11
WO2013172186A1 (ja) 2013-11-21
MY182159A (en) 2021-01-18
EA201492083A1 (ru) 2015-03-31
TW201400041A (zh) 2014-01-01
CN104379006A (zh) 2015-02-25
CN104379006B (zh) 2017-10-20
KR101697415B1 (ko) 2017-02-01
EP2835061A4 (de) 2015-12-30
JPWO2013172186A1 (ja) 2016-01-12

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