Smoking Article and Method for Manufacturing a Smoking Article
20230404142 ยท 2023-12-21
Assignee
Inventors
Cpc classification
A24D3/17
HUMAN NECESSITIES
A24D1/20
HUMAN NECESSITIES
A24D3/022
HUMAN NECESSITIES
A24D3/0225
HUMAN NECESSITIES
International classification
A24D3/04
HUMAN NECESSITIES
A24D1/20
HUMAN NECESSITIES
Abstract
The invention relates to a smoking article having a cylindrical shape with a longitudinal axis running through respective base areas of a distal end and a mouth end of the smoking article. The smoking article segments are at least in part wrapped in a circumferential wrapper and arranged subsequently in from the distal to the mouth end as follows: a. a tobacco segment comprising tobacco or tobacco derived smokable material, b. a cooling segment having a first flow path from the tobacco segment to a filter segment, c. the filter segment comprising a second flow path from the cooling segment to the mouth end.
The filter segment comprises a tobacco product including tobacco particles having an average particle size of 30 m and a dispersion medium for dispersing the tobacco particles. The invention also comprises a method for manufacturing such a smoking article.
Claims
1. A smoking article comprising a cylindrical shape with a longitudinal axis running through respective base areas of a distal end and a mouth end of the smoking article, wherein the smoking article comprises segments that are at least in part wrapped in a circumferential wrapper, the segments being arranged in order from the distal end to the mouth end as follows: a. a tobacco segment comprising tobacco or tobacco derived smokable material, b. a cooling segment having a first flow path from the tobacco segment to a filter segment, c. the filter segment comprising a second flow path from the cooling segment to the mouth end, wherein the filter segment comprises a tobacco product comprising tobacco particles having an average particle size of 30 m and a dispersion medium for dispersing the tobacco particles.
2. The smoking article according to claim 1, wherein at least one part of the filter segment-comprises a hollow cylinder shape having an inner lateral area enclosing a through-hole through which the second flow path is arranged, wherein the second flow path is parallel to the longitudinal axis, and wherein the inner lateral area is at least in part coated with the tobacco product.
3. The smoking article according to claim 2, wherein a bonding agent is arranged between the inner lateral area and the tobacco product.
4. The smoking article according to claim 1, wherein at least one part of the filter segment is a filter rod having an inner volume, wherein the tobacco product is arranged in the inner volume of the filter rod.
5. The smoking article according to claim 4, wherein the tobacco product is uniformly distributed within a first cylindrically shaped section of the filter rod and the tobacco product has a diameter equal to a diameter of the filter rod.
6. The smoking article according to claim 5, wherein a second cylindrically shaped section of the filter rod not comprising the tobacco product has a diameter equal to the filter rod, and the second cylindrically shaped section is arranged between the first section and the mouth end of the smoking article.
7. The smoking article according to claim 1, wherein at least one part of the filter segment is a filter rod having an inner volume, wherein at least one thread comprising the tobacco product is arranged in the inner volume of a first cylindrically shaped section of the filter rod, and wherein the first cylindrically shaped section has a diameter equal to a diameter the filter rod.
8. The smoking article according to claim 7, wherein a second cylindrically shaped section of the filter rod not comprising the thread and having a diameter equal to the diameter of the filter rod is arranged between the first section and the mouth end of the smoking article.
9. A method for manufacturing a smoking article, wherein a tobacco segment comprising tobacco or tobacco derived smokable material, a cooling segment comprising a first flow path and a filter segment comprising a second flow path are arranged in order on a longitudinal axis from a distal end to a mouth end of the smoking article, and the tobacco segment, the cooling segment, and the filter segment are at least in part wrapped in a circumferential wrapper thereby forming the smoking article having a cylindrical shape, wherein the first flow path connects the tobacco segment with the filter segment and the second flow path connects the cooling segment with the mouth end, wherein before arranging the filter segment next to the cooling segment a tobacco product comprising tobacco particles having an average particle size of 30 m and a dispersion medium for dispersing the tobacco particles is arranged in the filter segment.
10. The method according to claim 9, wherein at least one part of the filter segment is a hollow cylinder having an inner lateral area, and wherein the tobacco product is arranged on at least a part of the inner lateral area by coating.
11. The method according to claim 10, wherein before coating the inner lateral area with the tobacco product, the filter segment is at least in part coated with a bonding agent.
12. The method according to claim 9, wherein the tobacco product is arranged on the filter material of at least a part of the filter segment by spraying, wherein the filter material is afterwards formed into the filter segment, which is subsequently arranged next to the cooling segment.
13. The method according to claim 9, wherein the tobacco product is arranged on a thread, wherein the thread is then arranged on the filter material of at least a part of the filter segment which is afterwards formed into the filter segment, which is subsequently arranged next to the cooling segment.
14. The method according to claim 13, wherein the tobacco product is arranged on the thread by soaking the thread in the liquid tobacco product.
15. The method according to claim 13, wherein the tobacco product is arranged on the thread by spraying the liquid tobacco product onto the thread.
Description
[0028] Further advantages, objectives and features of the present invention will be described, by way of example only, in the following description with reference to the appended figures. In the figures, like components and different embodiments can exhibit the same reference symbols.
[0029] The figures show:
[0030]
[0031]
[0032]
[0033]
[0034]
[0035]
[0036]
[0037]
[0038]
[0039] The tobacco segment 5 comprises smokable material, preferably reconstituted tobacco. This smokable material is heated by an external heat source, preferably a heating blade which is inserted into the tobacco segment 5 from the distal end 1a. The smokable material comprises tobacco material and a suitable binder. When the smokable material is heated by the external heat source, preferably up to 250 C., the binder evaporates and picks up flavor substances and nicotine from the tobacco material comprised in the tobacco segment. The evaporated binder together with the flavoring material and the nicotine forms an inhalable aerosol. This inhalable aerosol is then guided along a first flow path 8 through the cooling segment 6. The first flow path 8 is arranged parallel to the longitudinal axis L. In the cooling segment 6, the inhalable aerosol is cooled down to be safe to inhale for the consumer. When leaving the cooling segment 6, the inhalable aerosol is guided along a second flow path 10 through the filter segment 9 towards the mouth end 1b of the smoking article 1. In the filter segment 9, the inhalable aerosol is filtered to improve the taste of the inhalable aerosol. When reaching the mouth end 1b of the smoking article 1, the inhalable aerosol is delivered to the consumer.
[0040] The filter segment 9 comprises the tobacco product 11. In this way the filter segment 9 serves two purposes. The first purpose is to filter any undesired flavor substances from the inhalable aerosol to improve the taste. The second purpose is to enhance the flavor of the inhalable aerosol via interaction with the tobacco product 11. The filter segment 9 comprises two different parts. The first part 12 comprises the shape of a hollow cylinder and is therefore referred to as the hollow cylinder part 12. This hollow cylinder part 12 is arranged directly adjacent to the cooling segment 6. The second part 15 comprises a filter rod and is therefore referred to as the filter rod part 15.
[0041] The filter rod part 15 is arranged directly at the mouth end 1b of the smoking article 1. Preferably the filter rod part 15 is arranged between the hollow cylinder part 12 and the mouth end 1b. The tobacco product 11 can either be arranged in the hollow cylinder part 12 and/or in the filter rod part 15. In the shown embodiment of
[0042]
[0043] The filter rod part 15 comprises the tobacco product 11 in its inner volume. Preferably, the tobacco particles contained in the tobacco product 11 are distributed homogeneously in the inner volume of the filter rod part 15. In a preferred embodiment, which is here shown in
[0044] Preferably only the first cylindrically shaped section 15a comprises the tobacco product 11, whereas the second cylindrically shaped section 15b does not comprise any tobacco product 11. The first cylindrically shaped section 15a comprising the tobacco product will have a dark, brownish color due to the tobacco comprised in the tobacco product 11. In contrast to this, the second cylindrically shaped section 15b, which does not comprise any tobacco product 11, comprises no discoloration. This is advantageous as only the second cylindrically shaped section 15b is visible to the consumer from the mouth end 1b and in this way hides the discolored first cylindrically shaped section 15a from the consumers view.
[0045]
[0046] Preferably, the threads 16 are arranged in a center region of the cylindrically shaped section or the first cylindrically shaped section (15a) of the filter rod part 15. The center region is defined as cylindrically shaped region having the same length as the (first) cylindrically shaped section (15a) along the longitudinal axis (L) and having a diameter equal to or smaller than the diameter of the through-hole 14 of the hollow cylinder part 12, wherein the center region is arranged concentric in the (first) cylindrically shaped section (15a) with regard to the circumference of the (first) cylindrically shaped section (15a). In this way, the aerosol streaming along the first and second flow paths (8, 10) and through the through-hole 14 of the hollow cylinder part 12 directly hits the threads 16 carrying the tobacco product 11.
[0047]
[0048]
[0049]
[0050]
[0051] For both embodiments of
[0052]
[0053] The overall length l1 of the filter segment 9 measured along the longitudinal direction l is preferably 20 mm. Preferably, the length l2 of the hollow cylinder part 12 measured along the longitudinal direction L is larger than the length l3 of the filter rod part 15 also measured along the longitudinal direction L. Preferably, the length l2 is 10 to 15 mm, even more preferred 12 mm. Preferably, the length l3 is 5 to 10 mm, even more preferred 8 mm. In this embodiment, the tobacco product can either be arranged in the hollow cylinder part 12 or in the filter rod part 15 or in both of them. In order to attach the hollow cylinder part 12 and the filter rod part 15 to each other, both parts 12, 15 are preferably wrapped in a joint plug-wrap 20. The plug wrap 20 is a wrapper wrapped circumferentially around the hollow cylinder part 12 and the filter rod part 15.
[0054]
[0055] The length l1 of the filter segment 9 is preferably 20 mm. The preferred length L2 of the hollow cylinder part 12 measured along the longitudinal axis L is preferably 10 to 15 mm, even more preferred 12 mm. Preferably the length l3 of the filter rod part 15 is 5 to 10 mm, even more preferred 8 mm. A length l5 of the second cylindrically shaped section 15b measured along the longitudinal axis L is preferably 1 to 2 mm, more preferred 1 mm. The length l4 of the first cylindrically shaped section 15a measured along the longitudinal axis L is preferably 4 to 9 mm, more preferred 7 mm. In this embodiment, it is preferred that the tobacco product 11 is either arranged only in the first cylindrically shaped section 15a or arranged in the first cylindrically shaped section 15a and the hollow cylinder part 12.
[0056]
[0057] In the depicted embodiment in which the filter rod part 15 comprises a first and a second cylindrically shaped section 15a, 15b, the length l4 of the first cylindrically shaped section 15b is preferably 6 mm and the length l5 of the second cylindrically shaped section 15b is preferably 1 mm. Although it is possible for this embodiment to arrange the tobacco product 11 in the hollow cylinder part 12, it is preferred to arrange the tobacco product 11 in the filter rod part 15. In the filter rod part 15, the tobacco product 11 is arranged downstream of the charcoal filter 19. This arrangement is preferred, as the charcoal filter 19 is able to remove any harsh flavors from the aerosol travelling along the second flow path 10. After the harsh flavor has been removed from the aerosol by the charcoal filter 19, the aerosol can then interact with the tobacco product 11 arranged in the filter rod part 15 and thereby pick up a more pleasing flavor from the tobacco particles. Preferably, all parts of the filter segment 9 i.e. the hollow cylinder part 12, the charcoal filter 19 and the filter rod part 15, are wrapped together in a plug wrap 20. This embodiment comprising the charcoal filter 19 is preferably combined with the homogenously distributed tobacco product in the filter rod part 15 or the first cylindrically shaped section 15a shown in
[0058]
[0059] The arranging 100 of the tobacco product 11 in the filter segment 9 can be carried out in basically three different embodiments of the method. The chosen embodiment depends on the desired arrangement of the tobacco product 11 in the filter segment 9. In a first embodiment of the method, the tobacco product 11 is arranged in the filter segment 9 by coating 102 the filter segment 9 with the tobacco product 11. Preferably, this embodiment of the method is combined with an embodiment of the smoking article 1, in which the tobacco product 11 is arranged in the inner lateral area 13 of the hollow cylinder part 12 of the filter segment 9. The coating 102 can either be carried out by coating the inner lateral area 13 of the hollow cylinder part 12 after the hollow cylinder part 12 has been manufactured. In alternative to that it is also possible to coat a surface of a filter material 17 with the tobacco product 11 and afterwards form the filter material 17 into a hollow cylinder part 12, wherein the coated surface is arranged to be the inner lateral area 13 of the hollow cylinder part 12. Before the coating 102 with the tobacco product 11 takes place, it is possible to coat 101, the very same surface on which the tobacco product 11 is afterwards applied with a bonding agent 18.
[0060] In alternative or in addition to arranging the tobacco product 11 in the hollow cylinder part 12, the tobacco product 11 can be arranged in the filter segment 9 by spraying 103 the tobacco product 11 onto the filter material 17 before forming the filter rod part 15 and eventually also the hollow cylinder part 12 from the filter material 17. In this embodiment of the method, it is also conceivable that before the tobacco product 11 is sprayed 103 onto the filter material 17 of the filter rod part 15, the filter material 17 is coated or pretreated 101 with a bonding agent 18. However, the coating 101 with a bonding agent 18 is an optional step.
[0061] In alternative or in addition to the previously described methods to arrange 100, the tobacco product 11 in the filter segment 9, it is also possible to arrange 107 threads 16 comprising the tobacco product 11 in the filter material 17 before the filter segment 9 is formed 104. Before arranging the threads or also one thread 16, in the filter material 17, the tobacco product 11 is arranged on the thread 16 either by soaking 105 the thread 16 with the tobacco product 11 or by spraying 106 the thread 16 with a tobacco product 11. Both alternatives, soaking 105 and spraying 106, may be preceded by coating 101 the thread 16 with a bonding agent 18.
[0062] All of the described methods to arrange 100 the tobacco product 11 in the filter segment 9 may be carried out separately or in combination.
[0063] After arranging 100 the tobacco product 11 in the filter segment 9, the individual parts of the filter segment 9, i.e. the hollow cylinder part 12, the filter rod part 15, preferably comprising a first and second cylindrically shaped section 15a, 15b, and preferably a charcoal filter 19, are arranged 108 in the order described in the previous embodiments along the longitudinal axis L. Afterwards the filter parts are preferably wrapped 109 in a plug wrap 20. At this point, the filter segment 9 is arranged 110 together with the other segments 3 sequentially along the longitudinal axis L to be subsequently wrapped 120 by the wrapper 4.
[0064] The applicant reserves his right to claim all features disclosed in the application document is being an essential feature of the invention, as long as they are new, individually or in combination, in view of the prior art. Furthermore, it is noted that in the figures features are described, which can be advantageous individually. Someone skilled in the art will directly recognize that a specific feature being disclosed in a figure can be advantageous also without the adoption of further features from this figure. Furthermore, someone skilled in the art will recognize that advantages can evolve from a combination of diverse features being disclosed in one or various figures.
LIST OF REFERENCE SYMBOLS
[0065] 1 Smoking article [0066] 1a distal end [0067] 1b mouth end [0068] 2 cylindrical shape [0069] 2a, 2b base areas [0070] 3 segments [0071] 4 wrapper [0072] 5 tobacco segment [0073] 6 cooling segment [0074] 8 first flow path [0075] 9 filter segment [0076] 9a upstream end [0077] 9b downstream end [0078] 10 second flow path [0079] 11 tobacco product [0080] 12 hollow cylinder part [0081] 12a first end [0082] 12b second end [0083] 13 inner lateral area [0084] 14 through-hole [0085] 15 filter rod part [0086] 15a first cylindrically shaped section [0087] 15b second cylindrically shaped section [0088] 16 thread [0089] 17 filter material [0090] 18 bonding agent [0091] 19 charcoal filter [0092] 20 plug wrap [0093] L longitudinal axis [0094] l.sub.1 length of filter segment [0095] l.sub.2 length of the hollow cylinder part [0096] l.sub.3 length of the filter rod part [0097] l.sub.4 length of the first cylindrically shaped section [0098] l.sub.5 length of the second cylindrically shaped section [0099] l.sub.6 length of the charcoal filter [0100] d diameter [0101] 100 arranging tobacco product in the filter segment [0102] 101 coating with bonding agent [0103] 102 coating with tobacco product [0104] 103 spraying with tobacco product [0105] 104 forming the filter segment [0106] 105 soaking the thread with tobacco product [0107] 106 spraying the thread with tobacco product [0108] 107 arranging the thread [0109] 108 arrange filter parts [0110] 109 wrap in plug wrap [0111] 110 arranging the segments sequentially [0112] 120 wrapping the arranged segments