RU2718359C2 - Smoking product - Google Patents

Abstract

FIELD: smoking accessories.SUBSTANCE: invention relates to products manufactured or produced from tobacco or otherwise containing tobacco and intended for human consumption, and, in particular, to a segmented smoking article, which generates aerosols containing significantly less products of incomplete combustion and pyrolysis compared to tobacco products producing smoke by burning tobacco. Disclosed is a smoking article having opposite to each other fired end and mouth end. On the mouthpiece end there is a part of the mouth end, and on the ignited end there is a heat-generating part. At least heat-generating part is wrapped with outer wrapping material, which passes to part of mouthpiece end so that to form cylindrical rod. Inside the wrapping material between the heat-generating part and part of the mouthpiece end there is an aerosol-generating portion. Aerosol generating part is configured to generate aerosol while receiving heat from heat-generating part.EFFECT: aerosol-generating portion and heat-generating part are configured to interact to distribute heat produced by the aerosol-generating portion from the heat-generating portion so as to prevent burning of the outer wrapping material.31 cl, 5 dwg

Description

BACKGROUND

Technical field

The present invention relates to products made or obtained from tobacco or otherwise containing tobacco and intended for human consumption, and in particular to a segmented smoking article that produces aerosols containing significantly less incomplete combustion and pyrolysis products than tobacco products, producing smoke through tobacco burning.

State of the art

Popular smoking articles, such as cigarettes, have a substantially cylindrical rod-like structure and contain a filler, roll or pillar of smoking material such as cut tobacco (for example, in the form of a cut filler) surrounded by a paper wrapper, thereby forming a so-called “smoking rod” ”,“ Tobacco rod ”or“ cigarette rod ”. Typically, a cigarette has a cylindrical filter element aligned with the end face of the tobacco rod. In a preferred embodiment, the filter element comprises a plasticized cellulose acetate fiber tow surrounded by a paper material known as “ficella”. Preferably, the filter element is attached to one end of the tobacco rod by means of a surrounding wrapping material known as “wrapping paper”. In addition, it is desirable to perforate the rim paper and ficella in order to dilute the retracted mainstream smoke with ambient air. Cigarettes and their various components are described in Tobacco Production, Chemistry and Technology (Davis et al.) (Ed.) (1999). A smoker uses a traditional type of cigarette, setting fire to one end of a cigarette and burning a tobacco rod. In this case, the smoker takes the inhaled main stream of smoke into the mouth by taking puffs from the opposite end (for example, from the filter or mouth end) of the cigarette. Over the years, attempts have been made to improve the components, design and technical characteristics of smoking articles. For example, US Pat. No. 7,753,056 (Borschke et al.) Is described in the prior art.

Certain types of cigarettes that use carbon-containing fuel cells are marketed under the trademarks Premier and Eclipse by R.J. Reynolds Tobacco Company. For example, these types of cigarettes are described in the monograph Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco. R.J. Reynolds Tobacco Company (1988) and the scientific journal Inhalation Toxicology, 12: 5, pp. 1-58 (2000). In addition, a similar type of cigarette was recently launched in Japan under the trademark “Steam Hot One” by the tobacco company Japan Tobacco Inc.

Various types of smoking products, including carbon-containing fuel cells for generating heat and generating aerosol, have recently been presented in the patent literature; and several patent documents describe the historical perspective of technology related to smoking products delivered by aerosols having chemical compositions that are relatively simple compared to the chemical composition of the mainstream smoke produced by burning tobacco. For example, types of smoking products and related technologies are proposed in U.S. Pat. Sebastian et al.), Nos. 8 616 217 (Tsuruizumi and others), Nos. 8 678 013 (Crooksn et al.) And Nos. 8 915 255 (Poget et al.), US Patent Publication Nos. 2012/0042885 (Stone et al. ) and No. 2013/0133675 (Shinozaki et al.), PCT international applications WO No. 2012/0164077 (Gladden et al.), No. 2013/098380 (Raether et al.), No. 2013/098405 (Zuber et al.), No. 2013/098410 (Zuber et al.), No. 2013/10494 (Woodcock), No. 2013/120849 (Roudier et al.), No. 2013/120854 (Mironov), WO 2013/162028 (Azegami et al.) And 20132 / 1600112 (Saleem et al.), EP 1808087 (Baba et al.) And EP 2550879 (Tsuruizumi et al.).

It would be highly desirable to create smoking products that demonstrate the ability to provide the smoker with a great deal of the pleasure of smoking traditional cigarettes without the use of an aerosol containing a significant amount of products of incomplete combustion and pyrolysis.

SUMMARY OF THE INVENTION

The above and other needs are satisfied by aspects of the present invention, in accordance with one of which an elongated smoking article having a fired end and an opposite mouth end is provided, wherein the smoking article comprises a mouth end portion located at the mouth end and a heat generating portion located at the ignited end . At least the heat generating part is wrapped with an outer wrapping material that extends to the part of the mouthpiece end so as to form a cylindrical rod. Inside the outer wrapping material, between the heat generating part and the mouthpiece part, there is an aerosol generating part which is configured to generate an aerosol when receiving heat from the heat generating part, the aerosol generating part and the heat generating part being also configured to interact to distribute the heat received by the part generating an aerosol from the heat generating part, so as to prevent burning of the outer wrapping material .

Thus, in accordance with aspects of the present invention, there is provided a smoking article, in particular a rod-shaped or elongated smoking article, such as a cigarette. The smoking article comprises a fired end (i.e., an end located earlier upstream) and a mouthpiece end (i.e., an end located further downstream) that are located at opposite ends of the smoking article. In addition, the smoking article comprises an aerosol generating system comprising: (i) an aerosol generating region, part or segment, and (ii) an aerosol generating region, part or segment located downstream of the heat generating segment. The heat generation segment contains a relatively short (longitudinally extending) heat source or fuel cell (i.e., heat generating element) made of a material such as, for example, a relatively clean combustible carbon-containing material. The aerosol generating segment most preferably contains a substrate region, and in certain embodiments, the substrate region comprises pellets or granules made of tobacco that are located in the chamber of the substrate. In an alternative embodiment of the invention, for example, the substrate region contains material including reconstituted tobacco (for example, material made from cut molded sheets). The substrate chamber or the region of the substrate in which the substrate material is located is preferably surrounded along the longitudinal extension of the smoking article by a layer or strip of metal foil (e.g., heat-conducting) laminated to a paper-type wrapping material. The substrate, made at least partially of tobacco, serves as a carrier and a source of aerosol forming materials.

In accordance with certain aspects of the present invention, there is provided an elongated smoking article comprising a segment, region or part of a mouthpiece end located at the mouth end and a segment, region or part (or other appropriately configured element) of a tobacco rod located between the ignited end and the part of the mouthpiece the end. The aerosol generating system is arranged as a segment between the heat generating segment and a portion of the mouthpiece end. In other words, the aerosol generating segment is positioned adjacent longitudinally to a heat generating portion or a segment located at the ignited end; and heat exchange occurs between the two segments in such a way that the heat generated by the combustion of the components of the heat generating segment acts on the aerosol forming components of the aerosol generating segment, resulting in aerosol generation. The longitudinal surfaces of the outer surfaces of the heat generating segment and the aerosol generating segment are surrounded by the outer wrapping material so as to form a rod, which in turn is attached to the mouth end segment. A layer of heat-conducting material is located underneath the outer wrapping material so as to form the outer inner surface of the aerosol generating segment. The heat-conducting layer most preferably overlaps the outer longitudinal surface of the heat generating segment in its region adjacent to the aerosol generating segment; moreover, the heat-conducting layer, if necessary, can overlap the outer longitudinal surface of the segment of the tobacco rod in its area adjacent to the segment generating the aerosol. Certain materials in the aerosol generating segment generate aerosol when exposed to heat generated by the combustion of a fuel cell in a heat generating segment.

In some aspects, the fuel cell or heat source of the heat generating segment may comprise a material that can be characterized as carbonized or pyrolyzed material resulting from carbonization or pyrolysis of a cotton material. In this regard, it may be preferable and / or desirable that the fuel cell / heat source is ignited and remains burning (i.e., smoldering), but without a flame when using a smoking article, while generating sufficient heat to bring the action of the aerosol generating segment to produce an aerosol. In this regard, aspects of the present invention can be directed, for example, to a fuel cell / heat source configured or positioned to be easily ignited or ignited. In some cases, existing fuel cells / heat sources made from conventional materials can be optimized to provide the required ignition / ignition characteristics of the smoking article. In other cases, other substances, such as additives (i.e. test carbon or cotton short fibers) and / or catalysts, may be included in existing fuel cells / heat sources consisting of traditional materials to improve their ignition / ignition characteristics. Typical aspects of such fuel cells / heat sources are disclosed, for example, in US patent application No. 14/755 205 (Nordskog et al.).

In some aspects, the area of the substrate (aerosol generating system) comprises a form of tobacco that forms tobacco smoke showing the desired sensory characteristics. For example, the substrate area may contain a mixture of the following components: (i) pellets or granules made of tobacco that act as carriers for aerosol forming material such as glycerin (i.e., aerosol forming material can be incorporated or otherwise incorporated into granules / pellets or brought into contact with granules / pellets and attached to them by a gelling agent / sealing material to maintain the integrity of the aerosol forming material with the granule / pellet until exposed to heat during use); and (ii) a form of tobacco that forms tobacco smoke, showing the required sensory characteristics. Alternatively, for example, the substrate region may contain a mixture of the following components: (i) pieces or particles of sheets of reconstituted tobacco material, acting as carriers of an aerosol forming material, such as glycerin; and (ii) a form of tobacco that forms tobacco smoke, showing the required sensory characteristics. In specific aspects, the substrate region / aerosol generating system, separately or in conjunction with the heat generating segment, can be configured to more uniformly or efficiently transfer and distribute heat directed from the heat generating segment to the substrate region / aerosol generating system. In a preferred embodiment, such an increase in uniformity or efficiency in the transfer and distribution of heat directed from the heat generating segment to the area of the substrate / aerosol generating system also preferably reduces, minimizes or eliminates the burning of the outer wrapping material of the smoking article. In addition, such an increase in the uniformity or efficiency of the transfer and distribution of heat directed from the heat generating segment to the region of the substrate / aerosol generating system can also reduce burning of the region of the substrate / aerosol generating system itself, or at least contribute to reducing or minimizing negative sensory effects caused by burning the substrate onto an aerosol inhaled and consumed by the user.

Thus, the present invention includes, without limitation, the following embodiments:

Embodiment 1: An elongated smoking article having a fired end and an opposite mouth end that comprises a portion of the mouth end located at the mouth end; a heat generating portion located on a fired end; an outer wrapping material wrapped at least around a heat generating portion and extending to a portion of the mouthpiece end so as to form a cylindrical rod; and an aerosol generating part located inside the outer wrapping material between the heat generating part and the mouthpiece part, the aerosol generating part being configured to generate an aerosol when receiving heat from the heat generating part, and in addition, the heat generating part and the heat generating part are made with the possibility of interaction for the distribution of heat received by the aerosol generating part from the heat generating part, in such a way as to prevent burning on uzhnogo wrapping material.

Embodiment 2: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a rod-shaped element having a length and a maximum diameter, said rod-shaped element having a surface area exceeding the surface area of the straight cylinder which has a length and a maximum diameter equal respectively to the length and maximum diameter of the rod-shaped element.

Embodiment 3: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a grooved rod-shaped element.

Embodiment 4: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which a grooved rod-shaped element forms a channel passing through it in the longitudinal direction.

Embodiment 5: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the grooved rod-shaped element is extruded from a mixture containing ground tobacco, calcium carbonate, a binder, glycerin, water and aromatic additives.

Embodiment 6: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises an aerosol generating element wrapped with a wrapping material located between the aerosol generating element and the outer wrapping material.

Embodiment 7: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the wrapping material is selected from the group consisting of: laminated paper-foil, laminated paper-foil-paper, laminated paper-foil - tobacco, non-woven graphite sheet, graphene sheet, laminated graphene-foil sheet, laminated graphene-foil-paper sheet, laminated graphene-paper sheet, graphene ink printed on a sheet of paper, graphene ink, printed e on a sheet of foil, carbon nanotubes are introduced into contact with a paper sheet or a sheet of foil, fullerenes, introduced into contact with a paper sheet or a sheet of foil, and graphene inputted into contact with a paper sheet or a sheet of foil.

Embodiment 8: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which graphene ink is printed in a continuous pattern or intermittent pattern on a sheet of paper or a sheet of foil.

Embodiment 9: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the paper sheet contains a tobacco wrapping sheet and in which the tobacco sheet contains an extruded tobacco sheet, a molded tobacco sheet or a reconstituted tobacco sheet.

Embodiment 10: An article of manufacture in accordance with any previous or subsequent embodiment of the invention, or a combination thereof, in which the foil sheet comprises a continuous foil sheet or individual foil strips.

Embodiment 11: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a tobacco portion located inside the outer wrapping material between the heat generating portion and the aerosol generating portion.

Embodiment 12: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a tobacco portion located inside the outer wrapping material between the aerosol generating portion and the mouthpiece portion.

Embodiment 13: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a non-woven graphite sheet or non-woven composite sheet of graphite and graphene wrapped around a part of a heat generating part and around a part of an aerosol generating part, inside an outer wrapping material and passing towards the part of the mouthpiece end.

Embodiment 14: An article of manufacture in accordance with any previous or subsequent embodiment of the invention, or a combination thereof, in which a layer of outer wrapping material is applied to a nonwoven graphite sheet.

Embodiment 15: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a sheet of metal foil laminated to the outer wrapping material by means of an adhesive material disposed therebetween including a portion of aluminum hydroxide, the metal foil sheet being wrapped around of the heat generating part and around the part of the aerosol generating part, inside the outer wrapping material and extends towards the hour ty mouthpiece end.

Embodiment 16: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the outer wrapping material comprises a portion of aluminum hydroxide, a portion of magnesium hydroxide, or a portion of calcium carbonate.

Embodiment 17: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a fiberglass sheet wrapped around a portion of a heat generating portion and around a portion of an aerosol generating portion, inside an outer wrapping material and extending toward a portion of the mouthpiece end.

Embodiment 18: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, also comprising a heat-conducting material interacting with the outer wrapping material located inside the outer wrapping material and extending to radially wrap at least partially around the heat generating portion and in the longitudinal direction from the heat generating part to the aerosol generating part.

Embodiment 19: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention or a combination thereof, in which the heat-conducting material comprises heat-conducting ink deposited on the outer wrapping material, a metal layer located on a selected portion of the outer wrapping material, graphene brought into contact with the outer wrapping material, or carbon material brought into contact with a selected portion of the outer wrapping material.

Embodiment 20: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a material selected from the group consisting of: a cast sheet of tobacco material in the form of a cut filler, a sheet of reconstituted tobacco material in the form of a cut filler, tobacco material in the form of a cut filler treated with glycerin, aerosol-forming granules, ceramic material containing glycerin, exl. a whole sheet of non-tobacco material in the form of a cut filler, a fiberglass mat containing nicotine obtained from tobacco, a foil sheet containing an aerosol-forming material deposited on it, prefabricated paper containing nicotine obtained from tobacco, a non-tobacco material containing nicotine obtained from tobacco, and a combination thereof.

Embodiment 21: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the tobacco material in the form of a cut filler treated with glycerin contains from about 5% to 25% glycerol.

Embodiment 22: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a first part and a second part that are arranged in series between the heat generating part and the mouthpiece part.

Embodiment 23: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a first part and a second part, the first part of the aerosol generating part consisting of a material different from the second material parts of the aerosol generating part.

Embodiment 24: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a first part and a second part that are mixed together to form a single aerosol generating element.

Embodiment 25: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a porous ceramic rod-like element forming at least one passage passing through it in the longitudinal direction.

Embodiment 26: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the porous ceramic rod-shaped element comprises an aerosol forming agent, aromatic additives or a tobacco extract interacting therewith.

Embodiment 27: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, wherein the aerosolizer contains glycerin and the tobacco extract contains nicotine derived from tobacco.

Embodiment 28: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which a porous ceramic rod-like element forms a plurality of longitudinally extending open channels spaced apart in an angular direction around its outer surface.

Embodiment 29: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises aerosol forming granules arranged in series with respect to the heat generating part and includes a non-tobacco filter element located between said granules and the mouthpiece part the end.

Embodiment 30: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the aerosol generating part comprises a plurality of rod-like elements running parallel to each other that contain tobacco material, non-tobacco material or ceramic material.

Embodiment 31: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, in which the heat generating part comprises a heating element made of a carbonized material or a pyrolyzed material, including a flammability increasing material selected from the group consisting of carbon, cotton short fibers, glass microspheres, catalyst, or a combination thereof.

Embodiment 32: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention, or a combination thereof, further comprising a wrapping material wrapped around at least an outer wrapping material that is wrapped around at least a heat generating portion, the wrapping material being embossed in this way so as to be at least partially at a distance from the outer wrapping material.

Embodiment 33: An article of manufacture in accordance with any preceding or subsequent embodiment of the invention or a combination thereof, also comprising thermochromic inks interacting with the outer wrapping material, which are configured to provide a visual indication when the temperature threshold of the outer wrapping material is exceeded.

These and other features, aspects and advantages of the present invention will become apparent after reading the following detailed description together with the accompanying drawings, which are briefly described below. The present invention includes any combination of two, three, four or more features or elements formulated herein or set forth in any one or more of the claims, whether such features or elements are explicitly combined or otherwise set forth in the description of a particular embodiment of the invention or in the claims that are presented in this application. The present description is intended to be read, taking into account all elements in such a way that any individual features or elements of the described invention in any of its various aspects and embodiments should be considered combined, unless the context of the description of the invention clearly indicates otherwise.

BRIEF DESCRIPTION OF THE DRAWINGS

Thus, after describing the present invention in general terms, reference will now be made to the accompanying drawings, which are not necessarily scaled, and in which:

in FIG. 1 is a schematic longitudinal sectional view of a typical smoking article in accordance with one aspect of the present invention;

in FIG. 2 is a schematic longitudinal sectional view of an exemplary disassembled smoking article in accordance with another aspect of the present invention;

in FIG. 3 is a schematic longitudinal sectional view of a typical disassembled smoking article in accordance with yet another aspect of the present invention; and

in FIG. 4 and 5 schematically depict elements of an aerosol forming substrate in accordance with alternative aspects of the present invention.

DETAILED DESCRIPTION OF THE INVENTION

The following is a more detailed description of the present invention with reference to the accompanying drawings, which show some, but not all, aspects of the invention. It should be noted that the present invention can be implemented in various forms and should not be construed as limited by the aspects described in this application; more specifically, these aspects are presented in such a way that the present invention meets the relevant requirements of the law. Identical elements in all drawings have the same reference numbers.

In FIG. 1 shows a typical cigarette smoking article 10 in accordance with one aspect of the present invention. In a preferred embodiment, the smoking article 10 has the overall size, shape and overall appearance of the filter cigarette. The smoking article 10 is rod-shaped and has a fired end 14 and a mouthpiece 18. A longitudinally extending generally cylindrical heat generating segment 35 is located on the firing end 14. The heat generating segment 35 comprises a heat source 40 surrounded by an insulation 42, which is most preferably coaxially surrounded by an outer wrapping material 45. The heat source 40 is preferably configured to be activated by directly igniting the ignited end 14. In other words, the source of heat the fuel cell or fuel cell is configured to be ignited so as to burn or smolder and thereby generate heat. In addition, the smoking article 10 comprises a filter segment 55 located at the opposite end (i.e., mouthpiece end 18) and an aerosol generating segment 61 located between the filter segment and the heat source.

The heat generating segment 35 most preferably comprises a combustible fuel cell 40, which is generally cylindrical in shape and contains combustible carbonaceous material. Such combustible carbonaceous materials typically have a high carbon content. Preferred carbonaceous materials are predominantly carbon and typically have a carbon content of about 60%, usually about 70%, often about 80%, and often about 90%, based on dry weight. Such combustible fuel cells may contain components other than combustible carbonaceous materials (for example, tobacco components such as powdered tobacco or tobacco extract; aromatic substances; salts such as sodium chloride, potassium chloride and sodium carbonate; heat-resistant graphite fiber; iron oxide powder ; glass filaments; calcium carbonate powder; alumina granules; sources of ammonia such as ammonium salts; and / or binders such as guar gum, ammonium alginate and sodium alginate ) A typical fuel cell, for example, has a length of approximately 12 mm and a total outer diameter of approximately 4.2 mm. A typical fuel cell can be extruded or compounded by using powdered or powdered carbonaceous material and has a density greater than about 0.5 g / cm ³ , often greater than about 0.7 g / cm ³ , and often greater than about 1 g / cm ³ in terms of dry weight.

The multilayer insulation 42 may comprise glass filaments or fibers. Insulation 42 may act as a sheath that helps to reliably hold the heat source 40 in place within the smoking article 10 (i.e., is located between the heat source and the outer wrapping material so as to fix the heat source inside the outer wrapping material). In a preferred embodiment, the insulation is in the form of a non-woven mat of glass fibers. Insulation 42 can be made as a multilayer component, for example, containing an inner layer or mat 67 of non-woven glass fibers, an intermediate layer of reconstituted tobacco paper 68 and an outer layer of non-woven glass fibers 69. These layers can be concentrically oriented or each of them can wrap and / or surround the heat source in a continuous manner.

In a preferred embodiment of the invention, both ends of the heat generating segment 35 are open to provide access to at least the heat source 40 and insulation 42 at the ignited end 14. The heat source 40 and the surrounding insulation 42 can be made so that the length of both materials is the same (i.e. e. the ends of the insulation 42 are flush with the corresponding ends of the heat source 40 and, in particular, at the far end of the heat generating segment). If necessary, although this is not necessarily preferred, the insulation 42 may protrude slightly (for example, from about 0.5 mm to 2 mm) for either of the ends or both ends of the heat source 40. In addition, the heat and / or heated air generated by igniting the ignited end 14 during use of the smoking article 10 can easily pass through the heat generating segment 35 while tightening the smoker from the mouth end 18, through the heat source 40 itself (i.e., through longitudinal channel passing through heat source 40) and / or in the longitudinal direction through insulation 42.

Preferably, the outer wrapping material 75 surrounds the insulation 42 over the longitudinally extending outermost surface of the fired end 14 of the smoking article 10. This outer wrapping material 75 is typically a paper wrapping material similar to that used as the wrapping material surrounding the insulation region of the heat source segments cigarettes marketed under the trademarks "Premier" and "Eclipse" tobacco company RJ Reynolds Tobacco Company. In this regard, “outer wrapping material 75” may also be referred to as “outer wrapping paper 75” to refer to such aspects, but not limiting the outer wrapping material 75 to paper wrapping material.

In a preferred embodiment, one end of the heat generating segment 35 is located on the edge of the ignited end 14 or very close to it and axially aligned end to end with an aerosol generating segment 61 located further downstream, which preferably adjoin each other, preferably in the absence of a barrier (other than open space) between them. The close proximity of the heat generating segment 35 to the ignited end 14 provides direct ignition of the heat source 40 of the heat generating segment 35.

The cross-sectional shape and dimensions of the heat generating segment 35 prior to combustion during use may vary. In a preferred embodiment, the cross-sectional area of the fuel cell / heat source 40 is from about 10% to 35%, often from about 15% to 25% of the total cross-sectional area of the heat generating segment 35; while the cross-sectional area of the outer or surrounding area (comprising insulation 42 and corresponding outer wrapping materials) is from about 65% to 90%, often from about 75% to 85% of the total cross-sectional area of the heat generating segment 35. For example, for a cylindrical smoking articles 10, the circumference of which is from about 24 mm to 26 mm, a typical fuel cell / heat source 40 has a generally circular cross-section with an outer diameter of about 2.5 m m to 5 mm, often from about 3 mm to 4.5 mm.

The components of the heat generating segment may vary. One component of a heat generating segment is a fuel cell. Suitable fuel cells typically contain carbonaceous materials having a high carbon content, and may also contain ingredients such as graphite and / or alumina. Carbon-containing fuel cells include the types of components and configurations included in cigarettes marketed under the trademarks Premier, Eclipse, and Steam Hot One. In addition, typical options for heat generating segments, characteristics of fuel cells, their typical components, designs and configurations, as well as techniques and methods for manufacturing these heat generating segments and their fuel cells are described in US patent No. 4,714,082 (Banerjee and others), No. 4 756 318 (Clearman et al.), No. 4 881 556 (Clearman and others), No. 4 989 619 (Clearman and others), No. 5 020 548 (Farrier and others), No. 5 027 837 (Clearman and others .), No.5 067 499 (Banerjee and others), No 5 076 297 (Farrier and others), No 5 099 861 (Clearman and others), No 5 105 831 (Banerjee and others), No 5 129 409 (White and others), No. 5 148 821 (Best and others), No. 5 156 170 (Clearman and others), No. 5 178 167 (Riggs and others), No. 5 211 684 (Shannon and others ), No. 5,247,947 (Clearman et al.), No. 5,345,955 (Clearman et al.), No. 5,461,879 (Barnes et al.), No. 5,469,871 (Barnes et al.), No. 5,551,451 (Riggs ), No. 5 560 376 (Meiring and others), No. 5 706 834 (Meiring and others), No. 5 727 571 (Meiring and others), No. 7 836 897 (Borschke and others), No. 8 617 263 (Banerjee et al.) And No. 8 678 013 (Crooks); and the publication of US patent applications No. 2005/0274390 (Banerjee and others), No. 2007/0215168 (Banerjee and others), No. 2012/0042885 (Stone and others), No. 2013/0269720 (Stone and others) and No. 2015/0083150 (Conner et al.). Types of fuel cell configurations and their components are also described in US Pat. No. 4,819,655 (Roberts et al.) Or US Patent Application Publication No. 2009/0044818 (Takeuchi et al.).

Some fuel cells may include high-carbon carbon-containing material obtained from cotton-containing fibers (e.g., cotton short fibers) that have been carbonized or pyrolyzed. Descriptions of materials made from carbonized or pyrolyzed cotton short fibers, as well as methods for incorporating these materials into smoking articles, carbonized smoking materials and fuel cells, are presented in US Pat. Nos. 4,219,031 (Rainer et al.) And 4,039,990 (Lawrence et al. ), No. 5 007 440 (Robinson et al.), No. 5 060 673 (Lehman), No. 5 129 409 (White and others), No. 5 211 684 (Shannon and others) and No. 8 119 555 (Banerjee and other). The fuel cell of the heat generating segment is most preferably surrounded or otherwise covered by insulation or other suitable material. The insulation can be made and used in such a way as to maintain, maintain and hold the fuel cell in place inside the smoking article. The insulation can be further configured in such a way that the drawn in air and aerosol can easily pass through it. Suitable insulating assemblies are included in cigarette types marketed under the trademarks Premier, Eclipse, and Steam Hot One. Examples of insulation materials, components of insulation assemblies, configurations of typical insulation assemblies in heat generating segments, wrapping materials for insulation assemblies, and methods and methods for manufacturing such components and assemblies are presented in US Pat. Nos. 4,807,809 (Pryor et al.) And 4,893. 637 (Hancock et al.), No. 4 938 238 (Barnes and others), No. 5 027 836 (Shannon and others), No. 5 065 776 (Lawson and others), No. 5 105 838 (White and others ), No. 5 119 837 (Banerjee and others), No. 5 247 947 (Clearman and others), No. 5 303 720 (Banerjee and others), No. 5 345 955 (Clearman and others), No. 5 396 911 (Casey et al.), No. 5 546 965 (White), No. 5 727 571 (Meiring and others). No. 5 902 431 (Wilkinson et al.), No. 5 944 025 (Cook and others), No. 8 424 538 (Thomas and others), No. 8 464 726 (Sebastian and others) and No. 8 678 013 (Crooks and etc.).

Further downstream of the heat generating segment 35, a generally cylindrical aerosol generating segment 61 extending in the longitudinal direction is disposed. The aerosol generating segment 61 includes a substrate element 85 containing a material that is itself an aerosol forming agent or an aerosol forming substance or otherwise acts as a carrier for an aerosol forming agent or material (not shown). For example, the aerosol generating segment may contain reduced tobacco material, which includes processing aids, aromatic additives and / or glycerin. The above components of the aerosol generating segment may be located within and surrounded by the wrapping material 90. The wrapping material 90 may be configured to provide heat transfer from the fired end 14 of the smoking article 10 (e.g., from the heat generating segment 35) to the components of the aerosol generating segment 61. In other words, the aerosol generating segment and the heat generating segment can be configured to heat exchange with each other, and wrapping material 90 can contribute to such heat transfer. The heat exchange between them provides a sufficient amount of heat from the heat source 40 to the generating segment 61 aerosol, for vaporizing an aerosol forming material (i.e., bonded to substrate element 85) to generate and generate an aerosol. In some cases, the wrapping material 90 may be a separate component with respect to the outer wrapping material 75 or may interact with the outer wrapping material 75 in various ways. In other cases, the wrapping material 90 may comprise an insulating material for isolating the substrate member 85 from the outer wrapping material 75. For example, the wrapping material 90 may comprise a glass fiber mat with a thickness of about 50 microns to 500 microns.

In one aspect of the present invention, heat transfer is achieved by sequentially positioning the heat generating segment 35 and the aerosol generating segment 61 in close proximity to each other. In some cases, these segments can be sequentially located end to end in contact with each other. In addition, the implementation of heat transfer can be achieved by passing heat-conducting material from the area near the heat source 40 to the area occupied by the aerosol generating segment 61 and / or around this area. For example, in one aspect, a typical wrapping material 90 for substrate element 85 may include heat conducting elements or properties for transferring heat from heat generating segment 35 to aerosol generating segment 61 (and / or maintaining thermal interaction with the aerosol generating segment 61 along its length ) in order to ensure evaporation of the aerosol-forming components contained therein (i.e., associated with the substrate element 85). In other aspects, a typical wrapping material 90 and / or an outer wrapping material 75 may have heat-conducting properties for dissipating heat not directed from the heat generating segment 35 to the aerosol generating segment 61 and / or for uniform or more stable heat distribution between the heat generating segment 35 and an aerosol generating segment 61, while providing vaporization of the aerosol forming components contained in the aerosol generating segment 61 or associated with the substrate element 85. Such wrapping material 90 may be provided, for example, with a laminated paper-foil sheet comprising an outer layer 94 made of a paper sheet and an inner layer 96 made of a metal foil sheet. The metal foil sheet 96 may, for example, extend from a region further downstream of the heat source 40 and along at least a portion of the length of the aerosol generating segment 61. The metal foil layer / inner layer 96 may be connected to the outer layer 94 in the form of one or more separate longitudinally extending strips attached to the outer layer 94, or in the form of a continuous sheet, together with the outer layer 94 surrounding the specified area, overlapping heat segment 35 and aerosol generating segment 61.

In accordance with aspects of the present invention related to the wrapping material 90, the provision of its thermal conductivity can be implemented in various ways. Typically, the wrapping material 90 in the form of a laminated paper-foil sheet can have an approximate length (i.e., along the aerosol generating segment 61) of about 8 mm to 50 mm for a typical smoking article described in this application. The laminated paper-foil sheet may be perforated, pickled, embossed or primed, for example, to facilitate manufacture. In some cases, the thickness of the foil used in the laminated sheet can be changed or increased / decreased if necessary, for example, from about 0.0001 inches to 0.005 inches to change the characteristics of the laminated paper-foil sheet and / or to reduce the visible burning of part of the paper sheet (i.e., the outer layer 94) and / or the outer wrapping material 75 wrapped around the wrapping paper 90 and / or the aerosol generating segment 61.

The laminated sheet of paper-foil can be made in various ways. For example, heat-conducting ink (in some cases, heat-conducting metal ink) can be applied to a piece of paper so that the applied ink forms a layer (sheet or strip) of foil on a piece of paper (and / or at least partially can be absorbed / combined with a part paper). Such heat-conducting inks can include, for example, carbon, graphite, graphene, silver, or any other suitable heat-conducting material, or a combination thereof, for transferring heat along a portion of the paper, so that the transferred heat in turn heats the substrate element to produce an aerosol from it. In a preferred embodiment of the invention, such heat-conducting ink can be applied in accordance with a continuous pattern or intermittent pattern on foil sheets or traditional cigarette paper with a density of from about 20 g / m ² to 100 g / m ² .

In other cases, a heat-conducting material, such as a metal foil (e.g., silver), a conductive carbon material (e.g., graphene), or any other suitable heat-conducting material, or combinations thereof, may be deposited or otherwise attached in various configurations (e.g., as separate strips, a full sheet, a finished coating, etc.) on a traditional cigarette paper, for example, through the technology of "island placement" or selective placement / interaction, for example, to facilitate the Capturing and improving functionality. In any case, the implementation of the laminated paper-foil sheet as wrapping paper 90 may in some cases dissipate or redirect the heat produced by the heat generating segment 35 to reduce burning of the outer wrapping paper 75 and / or other components of the smoking article. In this regard, elimination of burning can improve the taste or sensory perception of the generated aerosol for the user. In other words, burned-out materials can impart an undesirable taste or sensory perception to the generated aerosol, and reducing, minimizing or eliminating such burning can, for example, improve the taste of the aerosol for the user and eliminate unwanted visual effects caused by such burning. Accordingly, aspects of the present invention affect means for more fully and efficiently directing and distributing the heat generated by the heat generating segment 35 and directed to the aerosol generating segment 61 without burning the substrate element 85, the outer wrapping paper 90 or other components affecting the inhaled aerosol and used by the user. In addition, since the aerosol generating segment 61 may, in some cases, contain glycerin or other extractable substances, various aspects of the wrapping material 90 described herein may also be aimed at preventing or minimizing the extraction of glycerol or other extractable substances from the segment Aerosol generating device 61 to the outer wrapping paper 75. Thus, aspects of the present invention may include wrapping material 90 that is preventable or mini the change in color of the outer wrapping paper 75, which may be caused by the extraction of glycerol or other extractable substance from the aerosol generating segment 61.

In some aspects, the wrapping paper 90 may comprise cigarette paper, foil, and tobacco paper in the form of a three-layer sheet, the configuration of which may further enhance the taste or sensory perception of the generated aerosol used by the user, for example, by reducing, minimizing, or eliminating burning or charring of specific components a smoking article and by directing more heat to the aerosol generating segment 61. The composition of the tobacco paper / sheet may vary and may contain different ratios, for example, Burley tobacco, pipe-dried tobacco, Oriental tobacco, or any other suitable tobacco variety or combination thereof. The inclusion of tobacco in tobacco paper / sheet can be up to 85%, and the tobacco paper / sheet can have a density in the range of about 20 g / m ² to 100 g / m ² . In some cases, the three-layer form of wrapping paper 90 may consist of tobacco paper / foil / tobacco paper, if necessary or if desired. In other cases, a two-layer sheet of tobacco paper or foil may be realized in which the tobacco sheet may be laminated to an aluminum or other heat-conducting foil having a thickness in the range of about 0.0005 inches to 0.002 inches, the two-layer sheet having a density of about 60 g / m ² to 100 g / m ² .

In accordance with further aspects, the wrapping paper 90 may be in the form of any of the following materials: laminated paper-foil sheet, laminated paper-foil-paper sheet, laminated paper-foil-tobacco sheet, non-woven graphite sheet, non-woven composite graphite-graphene sheet , graphene sheet, laminated graphene-foil sheet, laminated graphene-foil-paper sheet, laminated graphene-paper sheet, graphene ink printed on a paper sheet, graphene ink printed on a foil sheet, carbon nanotubes introduced into ntakt with a paper sheet or a sheet of foil, fullerenes, introduced into contact with a paper sheet or a sheet of foil, and graphene inputted into contact with a paper sheet or a sheet of foil. In such cases, for example, where graphene constitutes one of the outer layers of the laminate sheet, it may be desirable for the graphene layer of the laminate sheet to provide an initial layer of the laminate sheet closest to the substrate element 85. In other cases, for example, if there is a graphene-foil laminated sheet, an option may be desirable in which the foil of the laminated sheet provides an initial layer of the laminated sheet closest to the substrate element 85, while the graphene layer acts as a heat shield between the substrate element 85 and the outer wrapping material 75, or the order can be changed, where the graphene layer is the initial layer of the laminated sheet closest to the substrate element 85, and the foil layer serves as a heat shield between the element 85 m of the substrate and an outer wrapping material 75. In cases when the wrapping paper comprises a thermally conductive layer 90 and the paper sheet or foil may be disposed an insulating layer or thermal layer therebetween.

In aspects regarding the application of, for example, graphene inks, the ink can be applied in various printing methods, such as, for example, intaglio printing, flexographic printing, offset printing, screen printing, inkjet printing or other suitable printing method, to provide different thicknesses, pattern, surface coating, or composition gradients.

In other aspects, graphene foil or graphene conductive sheet may be disposed between the cigarette paper (i.e., the outer wrapping material 75) and the aluminum foil (i.e., the sheet foil layer bonded to the wrapping material 90) to create the structure of the paper-laminate layer graphene foil covering the outer wrapping material 75 and the wrapping paper 90. In this case, the graphene portion can be completely covered (for example, between the inner and outer layers) to prevent or minimize the transfer or migration of material from it during the manufacture and use of the product, which can also prevent or minimize the extraction of glycerol from the substrate element 85 to the outer wrapping material 75. However, it will be apparent to those skilled in the art that the wrapping material 90 is configured to achieve the objectives described in this application can be obtained in many different ways besides the various configurations described in this application, and that these illustrative configurations are not restrictive in this respect shenii.

Outer wrapping paper 75 is typically configured to wrap the heat generating segment 35 and extend in the longitudinal direction (further downstream) so as to wrap around the aerosol generating segment 61 and along at least a portion of its length. Furthermore, being positioned so as to wrap said components of the smoking article, the outer wrapping paper 75 also extends above the interface between the heat generating segment 35 and the aerosol generating segment 61, and thus it may also be desirable to exhibit no burning or a minimum propensity burning (as well as a predisposition to the lack of extraction). In this regard, in some aspects of the present invention, outer wrapping paper 75 may be treated or otherwise exposed to, for example, calcium carbonate (CaCO ₃ ), aluminum hydroxide, magnesium hydroxide and / or a combination thereof as fillers in the outer wrapping paper matrix 75 at least as burn retardants.

Furthermore, it will be apparent to those skilled in the art that the opposite ends of the wrapping paper 90 and / or the outer wrapping material 75 wrapped around the respective components of the smoking article (i.e., ends overlapping at an angle to each other to form a seam extending in the longitudinal direction along the smoking article) can be connected to each other, for example, by means of adhesive material. Accordingly, in some aspects of the present invention, the adhesive material may also include a filler, such as calcium carbonate (CaCO ₃ ), aluminum hydroxide, magnesium hydroxide and / or a combination thereof, to reduce, minimize or eliminate burning or charring of the adhesive material and / or outer wrap material 75 along the longitudinally extending seam of the outer wrapping material 75 wrapped around the components of the smoking article.

The substrate element 85, forming part of the aerosol generating segment 61, may contain tobacco. In particular, in the case of tobacco, the substrate element 85 may be made from a mixture of aromatic varieties of tobacco, for example, in the form of a cut filler. These types of tobacco, in turn, can be treated with an aerosol forming material and / or at least one aromatic substance. The element 85 of the substrate may be made of processed tobacco (for example, reconstituted tobacco made using processes for producing cast sheets or paper) in the form of a cut filler. Certain structures of the cast sheet may contain from about 270 mg to 300 mg of tobacco per 10 mm of the length of the cast sheet. In other cases, the substrate element 85 may comprise a mixture of molded tobacco pellets. In some aspects of the present invention, the substrate element 85, consisting of tobacco, in turn, can be processed and contain aerosol forming material and / or at least one aromatic substance, as well as a combustion inhibitor (for example, diammonium phosphate or other similar type of salt and / or other suitable flame retardant materials). The inclusion of a combustion inhibitor in the substrate element can be implemented to prevent ignition of the material forming the substrate, and / or to prevent burning of the substrate element caused by the heat-generating element. In addition, the metal inner layer or surface 96 of the wrapping material / outer layer 94 of the aerosol generating segment 61 may act as a carrier for the aerosol forming material, tobacco components and / or at least one aromatic substance.

As used herein, the term “tobacco pellets” includes granules, pellets or other discrete small tobacco particles that are molded, compressed, extruded or otherwise obtained into a desired shape. For example, tobacco pellets can be formed by a so-called pelletizing process. Tobacco pellets may have a smooth regular outer shape (for example, the shape of a sphere, cylinder, ovaloid, etc.) and / or an irregular outer shape. In one example, the diameter of each tobacco pellet may range from about 1 mm to 2 mm. Tobacco pellets can at least partially fill the chamber of the substrate of the smoking article, as described herein. In other words, the substrate element 85 may take the form of pellets or other free particles occupying the space inside the aerosol generating segment 61 adjacent to the heat generating segment 35 and located further downstream from it. In one example, the volume of the substrate chamber may be in the range of about 500 mm ³ to 700 mm ³ (for example, the volume of the substrate chamber of a smoking article whose diameter is approximately 7.5-7.8 mm and a length of approximately 11-15 mm, which has a generally cylindrical shape). In one example, the weight of the tobacco pellets inside the chamber of the substrate may be about 200-500 mg. For example, tobacco pellets can be used in such a way as to fill the corresponding part of the aerosol generating segment 61 (for example, the cylindrical region inside its wrapping material bounded by the ends of the heat generating segment 35 and the filter segment 55) at a density of approximately 100-400 mg / cm ³ .

The configuration and location of the substrate element 85 may vary in accordance with various aspects of the present invention. In one aspect, the substrate element 85 may be in the form of a monolithic or integrated structure obtained by, for example, an extrusion, molding or casting process. In some preferred aspects, the monolithic substrate element 85 may comprise tobacco or tobacco products. For example, in one aspect, the monolithic substrate element 85 formed by the extrusion process may comprise glycerin, ground tobacco, calcium carbonate, a binder, flavorings, and water. In particular, the extruded material may contain, based on the dry weight, about 37.86% ground tobacco, about 39.82% calcium carbonate, about 1.00% binder such as carboxymethyl cellulose (CMC) or cellulose resin, and about 21.32 % glycerol and aromatic additives (where the proportion of glycerol is approximately 20%).

The monolithic substrate element 85 formed by the extrusion, molding or casting process may have different final shapes and appearance, which can help improve heat transfer from the heat generating segment 35 and / or more efficient heat distribution to the substrate element 85, and not to other proximal components of the smoking article, so as to reduce, minimize, or eliminate their charring or charring. For example, the extruded substrate element 85 may have the shape and configuration of a monolithic grooved rod-like element 300 (see, for example, FIG. 4). In other words, the rod-shaped element may comprise a plurality of protrusions 310 spaced apart in an angular direction around its outer surface, the adjacent protrusions forming open channels extending between them in the longitudinal direction 320. In some cases, the grooved rod-shaped element may also form one or more passages 330, passing in the longitudinal direction through its central part or through one or more protrusions. The location, dimensions and / or configuration of open channels and / or passages may vary as necessary to obtain specific operational characteristics. For example, one effect of open channels and / or passages is to increase the available surface area compared to a solid cylindrical rod-shaped element, which, in turn, leads to an increase in cigarette production (i.e. an extended service life) and a decrease in pressure drop along the smoking article (i.e., less pull resistance).

The effective diameter (i.e., maximum outer diameter) of the grooved rod-shaped member may vary, for example, from about 5.8 mm to 7.3 mm. In order to incorporate the grooved rod-shaped element into the aerosol generating segment 61, the extruded material of a larger diameter can be wrapped, for example, with a laminated paper-foil sheet or a laminated paper-foil-paper sheet, while the extruded material of a smaller diameter can be wrapped, for example, with one layer fiberglass mat and then wrapped on top of either a laminated paper-foil sheet or a laminated paper-foil-paper sheet before wrapping the aerosol generating segment with an outer wrapping material 7 5 (although any configuration of the wrapping material 90 described in this application can be implemented if necessary). The increased surface area of the grooved rod-like element leads to a smaller surface area of the rod-shaped element in contact with the wrapping material located between the rod-shaped element and the outer wrapping material 75, which, in turn, leads to the transfer of less heat to the outer wrapping material 75 when using a smoking article. In addition, the inner passages can provide additional surface area of the rod-shaped element heated by the heat generating segment, and can serve to remove a certain amount of heat from the extreme surfaces of the grooved rod-shaped element (i.e., the extreme sections of the protrusions). In this regard, the visible burning of the outer wrapping material 75 can be reduced. In addition, the increased surface area of the grooved rod-shaped element compared to a continuous cylindrical rod-shaped element, which can be further increased by additional passage (s), can provide additional volume (i.e., proportional to the surface area of the substrate element 85) of the aerosol forming material included in the substrate element 85 and exposed to heat from the heat-generating segment 35, as well as a decrease in the pulling force, which must be applied to to the user of the smoking article. Accordingly, such a smoking article may have an extended service life compared to a smoking article containing a continuous cylindrical substrate element 85.

As an alternative to the laminated paper-foil or paper-foil-paper sheet forming the wrapping material of the substrate element 85 directly or with one layer of fiberglass mat located between them, a double-layer tobacco paper sheet or a three-layer tobacco paper sheet can be used as the wrapping material. In such cases, if the wrapping material receives heat from the heat generating segment sufficient to carbonize or burn the wrapping material, the initial layer of the laminated sheet of wrapping material may preferably comprise tobacco paper. Thus, charring or charring of a layer of tobacco paper can impart a tobacco flavor to the formed aerosol and, accordingly, has only a small negative effect or does not have such an effect on the taste or sensory perception of the formed aerosol. In particular, tobacco paper, such as a cast sheet or extruded tobacco paper, can be laminated onto a two-layer paper-foil sheet to form a three-layer paper-foil-tobacco paper sheet, where the tobacco paper creates an initial layer of a laminate sheet closest to element 85 substrate. Such a three-layer configuration can be applied, for example, to both tobacco-containing and tobacco-containing substrate elements, and can, for example, contribute to increased adhesion along the seam formed by wrapping a three-layer sheet around the substrate element (i.e., the seam is made between tobacco paper and cigarette paper forming the outer layer of a three-layer sheet), and can also add positive aspects to the characteristics of taste and / or sensory perception of the aerosol used by the user. It will be apparent to those skilled in the art, after familiarizing themselves with the innovative aspects of the present invention, that a three-layer paper-foil-tobacco paper sheet of the type described herein can also be applied to any tobacco-containing or tobacco-containing substrate elements and aerosol generating segments disclosed in the present invention.

In another aspect of the present invention, the substrate element 85 may be in the form of a plurality of continuous cylindrical rod-shaped elements 400 (see, for example, FIG. 5) extending parallel to each other from the interface of the heat generating segment 35 and the aerosol generating segment 61. Such continuous cylindrical rod-shaped elements can be made by extrusion, molding, or casting, if necessary, and may contain, for example, glycerin, ground tobacco, calcium carbonate, a binder, aromatic additives and water. In some cases, the solid cylindrical rod-shaped element may have a diameter of about 2.9 mm, and a plurality of such rods may be bundled or stacked for insertion into the aerosol generating segment 61 as a substrate element 85. Prefabricated solid cylindrical rod-shaped elements can be sequentially wrapped in a similar manner under similar conditions, similar to the configuration of a grooved rod-shaped element described in this application.

In other aspects, the composition of the material used for extruded rods, namely glycerin, ground tobacco, calcium carbonate, a binder, aromatic additives and water, can be used to form flat sheets with a thickness of about 0.3 mm to 1.7 mm. In some cases, the sheet may also be extruded (or molded, or cast if necessary), and then this sheet is dried to form a substrate material. Then, the dried sheet can be broken, for example, cut into strips or crushed into pieces. The cut / crushed portions of the molded sheet can be assembled and placed in the aerosol generating segment 61 as a substrate element 85 similarly to the tobacco material in the form of a cut filler (i.e., instead of the tobacco material in the form of a cut filler, but in a similar manner).

In some aspects, the substrate element 85 may be made, for example, from molded sheets containing tobacco material. Such cast sheets may be performed in a process in which a selected tobacco-containing mixture is cast, dried and cut into strips or crushed into pieces. In some cases, the cut strips or crushed pieces of the cast sheet may be mixed with other cut fillers (i.e., traditional tobacco material in the form of a cut filler with or without additional aerosolizer) to provide the desired taste or sensory perception for the user, as well as to facilitate manufacturing process. In one example, the selected tobacco-containing mixture can be characterized as a pectin-releasing mixture containing, for example, (calculated on dry weight) approximately 66.60% ground tobacco, approximately 3.75% diammonium phosphate, approximately 4.65% ammonium hydroxide, and approximately 25% glycerin and aromatic additives. To process the pectin release mixture, ground tobacco, diammonium phosphate, ammonium hydroxide and water can be heated to about 160 ° F (71 degrees Celsius) for about 1.5 hours, for example, to improve or enhance the sensory qualities of the resulting mixture. Then, glycerin and aromatic additives can be added to the remaining mixture after cooling following the heating step. After that, the resulting mixture can be used to form a cast sheet.

In another example, the selected tobacco-containing mixture can be characterized as a non-ammoniated mixture containing, for example, (calculated on dry weight) approximately 65.62% of ground tobacco, approximately 4.50% sodium alginate, approximately 1.13% sodium hydroxide or other regulator pH, about 25% glycerol and about 3.75% wood pulp. To process the non-ammoniated mixture, ground tobacco, sodium alginate and water can be heated to about 160 ° F (71 degrees Celsius) for about 1.5 hours, for example, to improve or enhance the sensory qualities of the resulting mixture. Then, hydrated wood pulp, a binder, glycerin and aromatic additives can be added to the remaining mixture after cooling following the heating step. After that, the resulting mixture can be used to form a cast sheet.

In another example, the selected tobacco-containing mixture can be characterized as a tobacco-containing reduced material containing, for example, (calculated on dry weight) approximately 51.8% tobacco pulp, approximately 4.2% wood pulp, approximately 22.0% concentrated tobacco extract, and approximately 22.0% glycerol and aromatic additives. A sheet of tobacco-containing reconstituted material can be formed by a method similar to that of a conventional reconstituted sheet. For example, water-soluble elements are first removed from the tobacco pulp layer, and the remaining tobacco pulp is concentrated to about 25% solids. Then, wood pulp can be added to the tobacco pulp to form a base sheet, the density of which can vary from about 120 g / m ² to 240 g / m ² . Then glycerin is mixed with a concentrated extract of nicotine obtained from tobacco (tobacco derived nicotine, TDN) (for example, in a ratio of 1: 1) and added to the base sheet. After that, the molded base sheet can be dried and cut into strips or crushed into pieces. Similarly to cast sheets, reconstituted sheets cut into strips or pieces can be mixed with other cut fillers (for example, a traditional tobacco cut filler with or without an additional aerosol former).

In another example, the selected tobacco-containing mixture can be characterized as a traditional tobacco material in the form of a cut filler with an increased glycerol content. In such cases, tobacco in the form of a cut filler may contain from about 5% to 30% glycerol. The tobacco material in the form of a cut filler with an increased glycerol content can then be used as the primary substrate (i.e., the substrate material forming the substrate element) or can be mixed with the cast material so that the resulting mixture forms the substrate material of the substrate element. Based on the required or required amount of glycerin, glycerin can be applied to a tobacco cut filler, for example, as a coating for cut particles (i.e., applied to individual strips of tobacco), as a topcoat, or both. Such a tobacco material in the form of a cut filler with an increased glycerol content can, for example, be mixed with various cast sheets, reconstituted sheets and / or tobacco granules, if necessary, in order to form a substrate material for the substrate element 85. In such cases, where the substrate element 85 has an elevated level of glycerol, it may be necessary to include wrapping of the substrate element 85, which minimizes or eliminates the extraction of the incorporated glycerol on the outer wrapping material 75.

In another example, the selected tobacco-containing mixture can be characterized as non-tobacco material. For example, a cast sheet used to form a substrate element, an extruded substrate element, or a substrate element in the form of granules (rounded) may contain calcium carbonate, rice flour, a binder, diammonium phosphate, glycerin, flavorings derived from tobacco nicotine (TDN) and water . In particular, such a non-tobacco cast sheet may contain, for example, approximately 41.25% calcium carbonate, approximately 13.75% rice flour, approximately 6% ammonium alginate, approximately 5.5% wood pulp, approximately 3.5% diammonium phosphate, and approximately 30% glycerol. In addition, nicotine (TDN) derived from tobacco, certain acids (e.g., levulinic acid and / or citric acid) and aromatic additives may be included in glycerin. An extruded substrate element or a granular (pelletized) substrate element may contain, for example, approximately 51.94% calcium carbonate, approximately 17.15% rice flour, approximately 1% TDN, approximately 1% carboxymethyl cellulose (CMC), approximately 0.66 % levulinic acid, approximately 0.44% lactic acid, approximately 20% glycerol and approximately 9.41% aromatic additives. In some cases, the cast sheet may be converted into cut strips, pieces, or presented as a cut filler. In other cases, if the substrate element 85 includes granules, they may be adjacent to or adjacent to the heat generating segment. In these cases, the selected component can be made opposite the heat generating segment to fix the granules in place. For example, such a selected component may include folded paper filter material or other non-tobacco paper tow.

In another example, a non-tobacco material substrate element 85, tobacco-derived nicotine (TDN), glycerin (i.e. an aerosol former), and aromatics can be added to the extruded ceramic substrate with relatively high porosity (i.e. a highly porous extruded ceramic rod-like element) ) In such cases, the ceramic rod-shaped element can be extruded in such a way that it forms one or more longitudinally extending channels (i.e., open channels or grooves located around the outer surface and / or passages passing through the central part of the rod-shaped element) . Similarly to the above-described example regarding the grooved rod-shaped element, the increased surface area of the ceramic rod-shaped element (i.e., due to open channels around its surface) leads to a smaller surface area of the rod-shaped element in contact with the wrapping material located between the rod-shaped element and the outer wrapping material 75, which in turn leads to the transfer of less heat to the outer wrapping material 75 when using chickens whole product. In addition, the inner passages can also provide additional surface area of the rod-shaped element heated by the heat generating segment, and can serve to remove some heat from the extreme surfaces of the grooved ceramic rod-shaped element (i.e., the extreme portions of the protrusions). In this regard, the visible burning of the outer wrapping material 75 can be reduced. In addition, the increased surface area of the grooved ceramic rod-shaped element compared to a solid cylindrical rod-shaped element, which can be further increased by additional passage (s), can provide additional volume (i.e., proportional to the surface area of the substrate element 85) of the aerosol forming material included in the element 85 of the substrate and exposed to heat from the heat-generating segment 35, as well as a decrease in the pulling force, which is necessary for Attach the user to the smoking article. Accordingly, such a smoking article may have an extended service life compared to a smoking article containing a continuous cylindrical substrate element 85. In addition, open channels / passages can provide less drag.

In some aspects of the present invention, the substrate element 85 may be segmented (i.e., the substrate element 85 may comprise a plurality of consecutive components or a plurality of parallel components) or may comprise combinations of two or more substrate materials. For example, the substrate element may comprise a combination of a cast sheet and / or a reconstituted sheet, each of which is crushed into pieces or cut into strips mixed with a tobacco cut filler treated with glycerin. Tobacco cut filler may have different levels of glycerol, for example, in the range of about 5% to 25%. In another example, the molded sheet, crushed into pieces or cut into strips, can be mixed with tobacco-containing granules. In addition to wrapping the extruded substrate element with fiberglass mat, the extruded substrate element 85 may alternatively be wrapped with tobacco paper or a laminated sheet containing a layer of tobacco paper, the substrate element 85 may contain, for example, a bundle of rod-shaped elements of a smaller diameter, arranged in parallel, or strips of cast sheet , extruded leaf or reconstituted tobacco leaf, processed in a manner analogous to the method used in relation to tobacco cut fillers or rolled together to form a substantially cylindrical substrate member.

In addition to the components described in this application, the substrate element 85 may consist of various combinations of such components.

In addition, in some aspects, such components may be further selected from the group consisting of, for example, the following components: a fiberglass mat coated with a TDN / glycerol (B3) solution, a porous ceramic element containing an aerosol forming agent, such as glycerin deposited thereon , a cast sheet containing pectin-releasing material, a non-ammoniated cast sheet, a non-tobacco cast sheet, a assembled or crushed foil sheet onto which an aerosol former is applied, or strips made therefrom and non-tobacco products, such as gathered paper, treated extracts, such as the TDN, granules or assembled carbon or carbonless paper.

The components of the aerosol generating segment may vary. The aerosol generating segment contains components that can be converted to vapor, aerosol, or entrained in air, trapped in a stream passing through the smoking article during use. Most preferably, these components individually or in combination provide sensory and organoleptic effects such as aroma, taste, visible aerosol, and the like. Examples of components of the aerosol generating segment that enter the smoker's mouth when puffed include water (e.g., as water vapor), visible aerosol-forming materials (e.g., glycerin), various volatile aromatic substances (e.g., vanillin or menthol), volatile components of tobacco ( e.g. nicotine), etc.

A preferred aerosol forming material forms a visible aerosol when a sufficient amount of heat is applied to it or otherwise through the action of aerosol formation conditions caused by components of the smoking article. A highly preferred aerosol forming material produces a visible aerosol that can be considered “smoke-like”. A preferred aerosol forming material is chemically simple with respect to the chemical nature of the smoke produced by burning tobacco. A preferred visible aerosol forming material is a polyol, and exemplary preferred aerosol forming materials include glycerin, propylene glycol, and mixtures thereof. If necessary, aerosol forming materials can be combined with other liquid materials, such as water. For example, the chemical compositions of aerosol forming materials may include mixtures of glycerol and water, or mixtures of propylene glycol and water. See, for example, various aerosol forming materials disclosed in US Pat. PCT International Application WO 98/57556 (Biggs et al.).

Materials that can be used to create substrates for aerosol forming materials in aerosol generation areas can vary. Suitable substrate elements and related aerosol forming materials are included in cigarette types marketed under the trademarks Premier, Eclipse, and Steam Hot One. The substrate element may contain some kind of tobacco, usually consists mainly of tobacco and can be made almost entirely of tobacco material. For example, in some embodiments, at least a portion of the entire substrate material is used in the form of a conventional filler (e.g., cut filler). Suitable substrate materials and chemical compositions of the substrates, including aerosol forming materials (including cast sheet and reconstituted paper type tobacco materials), are also described in US Pat. Nos. 4,793,365 (Sensabaugh et al.), 4,893,639 (White), 5,099 861 (Clearman et al.), No 5 101 839 (Jakob et al.), No 5 105 836 (Gentry and others), No 5 109 122 (Clearman and others), No 5 159 942 (Brinkley and others ), No. 5 203 355 (Clearman and others), No. 5 271 419 (Arzonico and others), No. 5 327 917 (Lekwauwa and others), No. 5 396 911 (Casey and others), No. 5 533 530 (Young et al.), No. 5,588,446 (Clearman), No. 5,598,868 (Jakob et al.), No. 5,715,844 (Young et al.), No. 6,378,528 (Beeson et al.) And No. 8 678 013 (Crooks et al.) And US Patent Publication No. 200 5/0066986 (Nestor and others), No. 2012/0067360 (Conner and others) and No. 2015/0157052 (Ademe and others). In addition, the substrate materials may have the types or configurations described in US Pat. No. 8,839,799 (Conner et al.); in the form of an assembled web or sheet obtained using the methods generally described in US Pat. No. 4,807,809 (Pryor et al.), or in the form of a web or sheet cut into a plurality of longitudinally extending threads obtained by the methods, generally described in US Pat. No. 5,025,814 (Raker).

The way in which the aerosol forming material is in contact with a substrate material (e.g., tobacco material) may vary. Aerosol forming material may be applied to the molded tobacco material or may be incorporated into processed tobacco materials in the manufacture of these materials. The aerosol forming material may be dissolved or dispersed in an aqueous liquid or other suitable solvent or liquid carrier and spray applied to said substrate material. See, for example, US Patent Application Publication No. 2005/0066986 (Nestor et al.). The amount of aerosol forming material used relative to the dry weight of the substrate material may vary. Materials containing excessively high levels of aerosol forming material can be difficult to process into cigarette rods using traditional types of automated cigarette manufacturing equipment.

Cast sheet materials may have relatively high levels of aerosol forming material. Reconstituted tobacco made using types of paper manufacturing processes may have average levels of aerosol forming material. Filler in the form of tobacco strips and shredded tobacco may contain less aerosol forming material. Within the scope of the invention, various paper and non-paper substrates can be used, including assembled, multilayer, multilayer metal, strips, granules, for example, aluminum oxide granules, open cell foam, foamed monolith, breathable matrices and other materials. See, for example, US Pat. Nos. 5,183,062, 5,203,355 and 5,588,446 (Clearman).

Laminated paper or other wrapping material may be made as described in US Pat. No. 6,849,085 (Marton) or in accordance with other suitable methods and / or materials.

In some preferred smoking articles, both ends of the aerosol generating segment 61 are open to provide access to the substrate member 85. Together, the heat generating segment 35 and the aerosol generating segment 61 form an aerosol generating system 99. The aerosol generating segment is adjacent to the downstream end of the heat generating segment so that these segments are axially aligned end to end. These segments can be adjacent to each other or can be located at a small distance from each other, which may include, if necessary, a buffer region 110 (which in some cases may contain a heat-conducting breathable separation element). The outer cross-sectional shape and dimensions of these segments, when viewed perpendicular to the longitudinal axis of the smoking article 10, can be substantially the same with each other. The physical arrangement of these components is preferably such that heat is transferred (for example, by mechanisms including conductive and convective heat transfer) from the heat source 40 to the adjacent substrate element 85 throughout the entire life time (for example, combustion) of the heat source during use of the smoking article 10 .

The buffer region 110 may reduce the possibility of burning or other thermal decomposition of parts of the aerosol generating segment 61. The buffer region may mainly include an empty cavity, or it may be partially or substantially completely filled with a non-combustible material, such as, for example, metallic, organic, inorganic, ceramic or polymeric materials, or any combination thereof. The length (thickness) of the buffer region can be about 1-10 mm, however, it is often about 2-5 mm. If necessary, the buffer region or separation segment 110 may comprise catalytic materials, such as materials including cerium or copper ions or cerium oxides and / or salts and copper ions. See, for example, US Pat. No. 8,469,035 (Banerjee et al.) And No. 8,617,263 (Banerjee et al.), As well as U.S. Patent Application Publication No. 2007/0215168 (Banerjee et al.).

The components of the aerosol generating system 99 are preferably connected to each other and secured in place by the wrapping material 118. For example, the wrapping material may include paper wrapping material or a multilayer paper material that surrounds the downstream portion of the heat generating segment 35 and at least at least a portion of the longitudinally extending outer surface of the aerosol generating segment 61. The inner surface of the wrapping material 118 may be attached to the outer surfaces of the components that it surrounds by means of a suitable adhesive. It will be apparent to those skilled in the art that the aspects disclosed herein to reduce, minimize, or eliminate the burning or char of outer wrapping material 75 or wrapping paper 90 may also be applicable to wrapping material 118 when wrapping material 118 is applied to the outer wrapping material 75 or extends above the interface between the heat generating segment 35 and the aerosol generating segment 61.

In a preferred embodiment of the invention, the smoking article 10 comprises a suitable mouthpiece, such as, for example, a filter element 135 located on the mouth end 18 of the article. The filter element 135 is preferably located at one end of the aerosol generating system 99, such that the filter element 135 and the aerosol generating segment 99 are axially aligned end to end, adjacent to each other, in the absence of a barrier between them. In a preferred embodiment, the overall cross-sectional shape and dimensions of said segments 99, 135 are substantially the same when viewed perpendicular to the longitudinal axis of the smoking article. The filter element 135 may include a filter material 140, wrapped along its surface, passing in the longitudinal direction, surrounding the material 142 Fitzella. In one example, filter material 140 comprises a plasticized cellulose acetate tow or other suitable cigarette type filter material. Both ends of the filter element 135 are preferably open to allow aerosol to pass through it. In some cases, the filter element 135 may be configured to contain any combination of a paper tow, a cavity, and a traditional cigarette filter material (e.g., a cellulose acetate tow) if necessary.

In addition, the filter element may contain a destructible aromatic capsule, the type of which is described in US patent No. 7 479 098 (Thomas and others), No. 7 793 665 (Dube and others) and No. 8 186 359 (Ademe and others).

The aerosol generating system 99 is preferably attached to the filter element 135 by the wrapping paper 150. Examples of the wrapping paper are described, for example, in US Pat. No. 7,789,089 (Dube et al.), US Patent Application Publication No. 2007/0215167 (Crooks et al. .), No. 2010/0108081 (Joyce and others), No. 2010/0108084 (Norman and others) and No. 2013/0167849 (Ademe and others) and the publication of international patent application No. 2013/160671 (Dittrich and others). .

The smoking article 10 may comprise a dilution means, such as a series of perforations 160, each of which can pass through the rim paper 150 of the filter element and the ficella material 142. In an alternative embodiment of the invention, various perforations may extend around the smoking article as a ring in an area located earlier upstream than shown.

The length of a typical smoking article 10 is from about 80 mm to about 100 mm. For example, for a smoking article 10 having a length of about 85 mm, a typical heat generating segment 35 may have a length of about 10 mm to 15 mm, a typical aerosol generating segment 61 may have a length of about 40 mm to 55 mm, and a typical filter element 135 may have a length of from about 20 mm to 30 mm.

The cigarettes described with reference to FIG. 1 can be used in much the same way as cigarettes sold under the trademarks “Premier” and “Eclipse” by the tobacco company R.J. Reynolds Tobacco Company and the Japan Hot Tobacco Inc. trademarked as “Steam Hot One” In other words, a fuel cell or heat source is lit using a match or a cigarette lighter. The burning fuel cell / heat source resulting from such ignition produces heat transferred to the substrate element in the aerosol generating region of the cigarette. The element (s) of the substrate, including aerosol forming materials, as well as aromatic substances and components are heated and evaporated, forming an aerosol. This aerosol is carried away by the drawn in air and is transferred through the filtering element to the smoker's mouth.

In FIG. 2 shows another exemplary cigarette smoking article 10 in accordance with another aspect of the present invention. In a preferred embodiment, the smoking article 10 has the overall size, shape and overall appearance of the smoking article described above with reference to FIG. 1, and also includes types of components similar to the types of components of the smoking article shown in FIG. 1. However, compared with the embodiment shown in FIG. 1, the length of the filter segment 135 is increased, and the length of the aerosol generating segment 61 is reduced. For example, for the illustrated embodiment, the filter element 135 is a two-component segment comprising an end segment 182 of the mouthpiece end and a tubular segment 184 located between the aerosol generating segment and the end segment of the mouthpiece. Thus, the typical smoking article shown in FIG. 2 is a four-segment smoking article, while the typical smoking article shown in FIG. 1 is a three-segment smoking article.

Typically, the tubular segment 184 comprises a tube made of steam-treated plasticized cellulose acetate fiber, which defines the elasticity, structure, and length of the smoking article, while allowing the passage of drawn air through it. Alternatively, the tubular segment is made of heat-resistant plastic material (for example, a tube made of polycarbonate) or ceramic material.

The length of a typical smoking article 10 shown in FIG. 2 is from about 80 mm to 100 mm. For example, for a smoking article 10 having a length of about 85 mm, a typical heat generating segment 35 may have a length of about 10 mm to 15 mm, a typical aerosol generating segment 61 may have a length of about 10 mm to 25 mm, a typical tubular segment 184 may have a length of about 30 mm to 50 mm and a typical filter element 135 may have a length of about 20 mm to 30 mm.

In FIG. 3 shows yet another typical cigarette-shaped smoking article 10. In a preferred embodiment, the smoking article 10 has the overall size, shape and overall appearance of the smoking article described above with reference to FIG. 2, and also includes component types similar to component types of the smoking article of FIG. 2. However, between the aerosol generating system 99 and the filter element 135, there is a tobacco segment 198 made of tobacco cut filler 200 and wrapped in paper wrapping material 205. Compared to the embodiment of the invention shown in FIG. 2, the total length of the two-component filter segment is reduced to allow placement of a segment made of tobacco cut filler. Thus, the typical smoking article shown in FIG. 3 is a five-segment smoking article, while the typical smoking article shown in FIG. 2 is a four segment smoking article.

The upstream segment of the bicomponent filter segment 135 may consist of a cured tube made of a cellulose acetate tow in which activated carbon particles are dispersed and a destructible aromatic capsule or the like is disposed. Typically, the downstream segment of the two-component filter segment 135 is a segment made of a plasticized cellulose acetate tow or an assembled polypropylene web. If necessary, the two-component filter segment can be replaced by a single-component filter element or a three-chamber filter.

The length of a typical smoking article 10 shown in FIG. 3 is from about 80 mm to 100 mm. For example, for a smoking article 10 having a length of approximately 85 mm, a typical heat generating segment 35 may have a length of from about 10 mm to 15 mm, a typical aerosol generating segment 61 may have a length of from about 10 mm to 25 mm, typical segment 198 the tobacco filler may have a length of about 30 mm to 50 mm and a typical filter element 135 may have a total length of about 20 mm to 30 mm. For a typical filter element in the present embodiment, the upstream segment 220 of the filter element may have a length of about 5 mm to 20 mm, and the downstream segment 225 of the filter element may have a length of about 5 mm to 20 mm. For example, a typical smoking article with a total length of approximately 83 mm may comprise a heat generating segment 35 of approximately 12 mm long, an aerosol generating segment 61 of approximately 13 mm long, a tobacco filler segment 198 of approximately 37 mm long, and a cellulose acetate filter segment 220 of length about 7 mm and a segment 225 of a tow of low-performance plasticized cellulose acetate fiber of about 14 mm long.

In addition, typical smoking articles contain various components related to their design. For example, these types of components include wrapping materials, heat transfer materials, metal foil and layers of foil, mouthpiece parts, filter elements, fitzels, rim paper and adhesives. In addition, typical smoking articles may contain a wide variety of types of tobacco, types of tobacco and mixtures thereof. Such typical components, for example, are presented in US patent No. 5 724 997 (Fagg and others), No. 8 678 013 (Crooks and others) and the publication of US patent application No. 2015/0157052 (Ademe and others).

Various combinations and varieties of aromatic substances (including various materials that alter the sensory and / or organoleptic nature or nature of the main inhaled aerosol of the smoking article) may be included in suitable smoking articles. The substrate material and various tobacco components of the smoking article can be treated with tobacco additives of the type that is traditionally used for the manufacture of cigarettes, for example, components of the liner and / or surface layer. See, for example, the types of components presented in US Pat. No. 8,678,013 (Crooks et al.).

Methods and methods for assembling typical smoking articles are described in US Pat. No. 2012/0067360 (Conner and others), No. 2014/0261470 (Amiss and others) and No. 2015/0157052 (Ademe and others).

In light of the possible relationship between the aspects of the present invention while providing the indicated advantages and advantages associated with them, the present invention, therefore, in particular and explicitly includes, without limitation, embodiments of the invention representing various combinations of the disclosed aspects. Thus, the present invention includes any combination of two, three, four or more features or elements formulated in this description of the invention, regardless of whether such signs or elements are combined explicitly or otherwise set forth in the specific embodiment of the invention described in this application. The present description is intended to be read, taking into account all elements in such a way that any individual features or elements of the described invention in any of its various aspects and embodiments should be considered combined, unless the context of the description of the invention clearly indicates otherwise.

The aerosols produced by cigarettes in accordance with the present invention are aerosols comprising air-containing components such as vapors, gases, particulate matter suspended in the air, and the like. Aerosol components can be obtained by burning some kind of tobacco (and, if necessary, other components burned to generate heat); by thermal decomposition of tobacco caused by heating of the tobacco and carbonization of the tobacco (or otherwise exposing the tobacco to some form of decay); and by vaporizing an aerosol forming substance. In this regard, the aerosol may contain vaporizable components, combustion products (e.g., carbon dioxide and water), products of incomplete combustion, pyrolysis products and aerosols, hereinafter described as smoke.

In addition, aerosol components can be obtained by exposure to heat from burning tobacco of any kind (and, if necessary, other components burned to generate heat) on substances that are in thermal interaction with the burned tobacco material and other combustible components. Aerosol components can also be generated by an aerosol generation system as a result of exposure to a heat generating segment on an aerosol generating segment. In some embodiments of the invention, the components of the aerosol generating segment have such a general composition and are located in the smoking article in such a way that these components do not undergo significant thermal decomposition (for example, as a result of combustion, decay, or pyrolysis) under normal use.

Many modifications and other aspects of the invention set forth in this application may be obvious to specialists in this field of technology after reading the above descriptions and accompanying drawings. For example, those skilled in the art will understand that embodiments of the invention that are not explicitly presented in this application can be implemented within the scope of the present invention, and also that the characteristics described in this application for various embodiments of the invention, can be combined with each other and / or with technical solutions, currently known or developed in the future, within the scope of the claims presented in this application. In some such aspects, for example, conditions may be implemented to reduce, minimize, or eliminate burning, charring, or discoloration of the outer wrapping material, such as using an embossed wrapping material (e.g., made of paper) as an additional layer of the outer wrapping material (e.g., cigarette paper). In such cases, an increased surface area due to embossed embossing is provided, and / or embossed wrapping material, at least partially located at a distance from the outer wrapping material, can provide the use of the wrapping material as an external air-cooled device (e.g., cooling fins). In other cases, various measures may be taken to provide visual signs of overheating or fever. For example, thermochromic inks can be applied to the embossed wrapping material and / or the outer wrapping material, which visually appear or change appearance when the temperature threshold value is exceeded or within a specific temperature range, and / or disappear when the values are below the temperature threshold value or within specific temperature range. Thus, for example, the user may be advised to refrain from using the smoking article when the temperature rises, until the indication provided by the thermochromic ink changes its appearance, indicating a suitable temperature for the smoking article, and this measure can prevent it from being used when the temperature rises which could result in charring or charring of the outer wrapping material or any other component exposed to heat, etc. produced by the heat generating segment. In other cases, the outer wrapping material 75 or the wrapping paper / material 90 may contain or have an associated non-woven graphite or graphene sheet as a heat-conducting element or otherwise remove excess heat from the outer wrapping paper 75. In other words, the non-woven graphite or graphene sheet may be wrapped around a portion of the heat generating portion and around a portion of the aerosol generating portion, inside the outer wrapping material, and extend toward the portion of the mouthpiece end.

Thus, it should be understood that the present invention is not limited to the specific aspects described in this application, and that equivalents, modifications, and other aspects are included in the scope of protection of the present invention defined by the appended claims. Although specific terms are used in this application, they are used only in a generic and descriptive sense, and not for purposes of limitation. Aspects of the present invention are more fully shown in the examples given in this application, which are presented to illustrate certain aspects of the present invention and should not be construed as limiting its scope. Unless otherwise indicated, all parts and percentages are by weight.

Claims (41)

1. An elongated smoking article having a fired end and an opposite mouthpiece end, comprising: a portion of the mouth end located on the mouth end; a heat generating portion located on a fired end; a non-removable outer wrapping material wrapped around at least a heat generating portion and extending to a portion of the mouthpiece end so as to form a cylindrical rod; and an aerosol generating part located inside the outer wrapping material between the heat generating part and the mouthpiece part and containing an aerosol generating element wrapped in a wrapping material located between the aerosol generating element and the outer wrapping material and extending from the heat generating part to the aerosol generating part, which is configured to generate an aerosol when receiving heat from a heat generating part, wherein the wrapping material is selected from the group consisting of: a paper-foil-tobacco laminated sheet, a non-woven graphite sheet brought into contact with the foil sheet, a graphene sheet brought into contact with the foil sheet, a laminated graphene-foil sheet, a graphene-laminated sheet - tobacco, a laminated paper-graphene sheet brought into contact with the foil sheet, graphene ink printed on the paper sheet brought into contact with the foil sheet, graphene ink printed on the foil sheet, carbon nanotubes brought into contact with the paper sheet, brought into contact with the foil sheet, carbon nanotubes brought into contact with the foil sheet, fullerenes brought into contact with the paper sheet brought into contact with the foil sheet, fullerenes brought into contact with the foil sheet, graphene brought into contact with the paper sheet brought into contact with the foil sheet, and graphene elements brought into contact with the foil sheet, wherein the wrapping material is configured to distribute heat from the heat generating part away from the outer wrapping material, so that heat is directed from the heat generating part to the aerosol generating part to prevent burning of the outer wrapping material. 2. The product according to claim 1, in which the part generating the aerosol contains a rod-shaped element having a length and a maximum diameter, moreover, the rod-shaped element has a surface area greater than the surface area of the straight cylinder, which has a length and a maximum diameter equal to the length and maximum diameter of the rod-shaped element, respectively. 3. The product according to claim 1, in which the part generating the aerosol contains a grooved rod-shaped element. 4. The product according to claim 3, in which the grooved rod-shaped element forms a channel passing through it in the longitudinal direction. 5. The product according to claim 3, in which the grooved rod-shaped element is extruded from a mixture containing crushed tobacco, calcium carbonate, a binder, glycerin, water and aromatic additives. 6. The product according to claim 1, in which graphene ink is printed with a continuous pattern or intermittent pattern on a sheet of paper or a sheet of foil. 7. The product according to claim 1, in which the sheet of paper contains tobacco wrapping sheet, and the tobacco sheet contains extruded tobacco sheet, cast tobacco sheet or reconstituted tobacco sheet. 8. The product according to claim 1, in which the foil sheet contains a continuous sheet of foil or individual strips of foil. 9. The product according to claim 1, also containing a tobacco part located inside the outer wrapping material between the heat generating part and the aerosol generating part. 10. The product according to claim 1, also containing a tobacco part located inside the outer wrapping material between the aerosol generating part and the mouthpiece part. 11. The product according to claim 1, also containing a non-woven graphite sheet or a non-woven composite sheet of graphite and graphene, wrapped around a part of the heat generating part and around a part of the aerosol generating part, inside the outer wrapping material and extending towards the part of the mouthpiece end. 12. The product according to claim 11, in which a layer of the outer wrapping material is applied to the non-woven graphite sheet. 13. The product according to claim 1, also containing a sheet of metal foil, deposited by a layer on the outer wrapping material by means of an adhesive material located between them, including a portion of aluminum hydroxide, moreover, the sheet of metal foil is wrapped around the heat generating part and around the part of the aerosol generating part, inside the outer wrapping material and extends towards the mouthpiece part. 14. The product of claim 1, wherein the outer wrapping material comprises a portion of aluminum hydroxide, a portion of magnesium hydroxide, or a portion of calcium carbonate. 15. The article of claim 1, further comprising a fiberglass sheet wrapped around a portion of the heat generating portion and around a portion of the aerosol generating portion, inside the outer wrapping material and extending toward the portion of the mouthpiece end. 16. The product according to claim 1, also containing heat-conducting material interacting with the outer wrapping material located inside the outer wrapping material and passing for wrapping in the radial direction at least partially around the heat generating part and in the longitudinal direction from the heat generating part to the aerosol generating part . 17. The product of claim 16, wherein the heat-conducting material comprises heat-conducting ink applied to the outer wrapping material, a metal layer located on a selected portion of the outer wrapping material, graphene brought into contact with the outer wrapping material, or carbon material brought into contact with a selected portion of the outer wrapping material. 18. The product of claim 1, wherein the aerosol generating part comprises a material selected from the group consisting of: a cast sheet of tobacco material in the form of a cut filler, a sheet of reconstituted tobacco material in the form of a cut filler, tobacco material in the form of a cut filler, treated with glycerol, aerosol-forming granules, ceramic material containing glycerin, a cast sheet of non-tobacco material in the form of a cut filler, a fiberglass mat containing nicotine obtained from tobacco, a sheet of foil, holding an aerosol forming material deposited thereon, prefabricated paper containing nicotine derived from tobacco, non-tobacco material containing nicotine derived from tobacco, and a combination thereof. 19. The product according to claim 18, in which the tobacco material in the form of a cut filler treated with glycerol comprises from about 5% to 25% glycerol. 20. The product according to claim 18, in which the aerosol generating part comprises a first part and a second part, which are successively arranged between the heat generating part and the mouthpiece part. 21. The product of claim 18, wherein the aerosol generating part comprises a first part and a second part, moreover, the first part of the aerosol generating part consists of a material different from the material of the second part of the aerosol generating part. 22. The product of claim 18, wherein the aerosol generating part comprises a first part and a second part that are mixed with each other to form a single aerosol generating element. 23. The product according to claim 1, in which the part generating the aerosol contains a porous ceramic rod-like element forming at least one passage passing through it in the longitudinal direction. 24. The product according to p. 23, in which the porous ceramic rod-shaped element contains an aerosol former, aromatic additives or a tobacco extract interacting with them. 25. The product according to p. 24, in which the aerosolizer contains glycerin, and the tobacco extract contains nicotine obtained from tobacco. 26. The product according to claim 23, in which the porous ceramic rod-shaped element forms a plurality of open channels extending in the longitudinal direction, spaced apart in an angular direction around its outer surface. 27. The product according to claim 1, in which the aerosol generating part contains aerosol forming granules arranged in series with respect to the heat generating part and includes a non-tobacco filter element located between said granules and the mouthpiece part. 28. The product of claim 1, wherein the aerosol generating part comprises a plurality of rod-shaped elements running parallel to each other, which contain tobacco material, non-tobacco material, or ceramic material. 29. The product of claim 1, wherein the heat generating portion comprises a heating element made of a carbonized material or a pyrolyzed material, including a flammable material selected from the group consisting of carbon, short cotton fibers, glass microspheres, a catalyst, or a combination thereof. 30. The product according to claim 1, also containing a wrapping material wrapped at least around an outer wrapping material that is wrapped at least around a heat generating part, moreover, the wrapping material is embossed so as to be at least partially at a distance from the outer wrapping material. 31. The product according to claim 1, also containing thermochromic ink interacting with the outer wrapping material and configured to provide a visual indication when the temperature threshold of the outer wrapping material is exceeded.

Images