JP2018531587A - Smoking goods - Google Patents

Abstract

  A smoking article is provided and has an opposed ignition end and mouth end. The mouth end portion is disposed at the mouth end, and the heat generating portion is disposed near the ignition end. An outer wrapping material is wrapped at least around the heat generating portion and extends toward the mouth end portion so as to define a cylindrical rod. An aerosol generating portion is disposed inside the outer packaging material and between the heat generating portion and the mouth end portion. The aerosol generating portion is configured to generate an aerosol in response to heat received from the heat generating portion. The aerosol generating portion and the heat generating portion are further configured to cooperate to distribute heat received by the aerosol generating portion from the heat generating portion to prevent scorching of the outer packaging material. Related methods are also provided.

Description

  The present disclosure relates to products made or produced from tobacco or otherwise incorporating tobacco and intended to be consumed by humans, and more particularly, generating smoke by burning tobacco It relates to a segment-type smoking article which results in an aerosol with significantly less incomplete combustion and pyrolysis products compared to tobacco products.

  Common smoking articles such as cigarettes have a substantially cylindrical rod-like structure and charge, roll, or column of smokable material such as shredded tobacco (eg, in the form of cut filler) Is surrounded by a wrapping paper to form a so-called “smokable rod”, “tobacco rod” or “cigarette rod”. Typically, cigarettes have cylindrical filter elements that are aligned with the tobacco rod in end-to-end relationship. Preferably, the filter element comprises a plasticized cellulose acetate tow surrounded by a paper material known as a “plug wrap”. Preferably, the filter element is attached to one end of the tobacco rod using a surrounding wrapping material known as “tipping paper”. It has also become desirable to provide holes in the chipping material and plug wrap to dilute the mainstream smoke that is sucked in with ambient air. A description of cigarettes and their various components can be found in Tobacco Production, Chemistry and Technology, Davis et al. (Eds.) (1999). Traditional types of cigarettes are used by smokers by igniting one end and burning a tobacco rod. The smoker then accepts mainstream smoke into his mouth by inhaling at the opposite end of the cigarette (eg, the filter end or mouth end). Over the years, efforts have been made to improve the components, structure, and performance of smoking articles. See, for example, the background art described in US Pat. No. 7,753,056 to Borschke et al.

  A particular type of cigarette that uses a carbonaceous fuel element is R.I. J. et al. Commercially available under the brands “Premier” and “Eclipse” by Reynolds Tobacco Company. See, for example, Chemical and Biological Studies on New Cigarette Prototypes that Heat Institute of Burn Tobacco, R.A. J. et al. Reynolds Tobacco Company Monograph (1988) and Inhalation Toxiology, 12: 5, p. See cigarettes of the type described in 1-58 (2000). In addition, a similar type of cigarette has recently been sold under the name “Steam Hot One” by Japan Tobacco Inc. Sold in Japan.

  In recent years, various types of smoking products incorporating carbonaceous fuel elements for heat generation and aerosol formation have been described in the patent literature, and several patent documents have been produced by burning tobacco. Provides a historical view of technology related to smoking products that result in aerosols having a relatively simple chemical composition compared to mainstream smoke. For example, Cantrell et al., US Pat. No. 7,647,932, Borschke et al., US Pat. No. 7,836,897, Banerjee, et al., US Pat. US Pat. No. 8,616,217, US Patent No. 8678013 to Crooks et al., US Pat. No. 8,915,255 to Poget et al., US Patent Application Publication No. 2012/0042885 to Stone et al. And US Patent Application to Shinozaki et al. Publication 2013/0133675, Gladden et al., International Publication No. 2012/0164077, Raether et al., International Publication No. 2013/098380, Zub r et al. International Publication No. 2013/098405, Zuber et al. International Publication No. 2013/098410, Woodcock International Publication No. 2013/104914 Pamphlet, Roudier et al. Published 2013/120854, Azegami et al. International Publication 2013/162028 Pamphlet, and Salee et al. Reference is made to the various types of smoking products and related techniques proposed in EP 2550879.

  It would be highly desirable to provide a smoking article that has the ability to provide smokers with much of the smoking pleasure of traditional cigarettes without providing an aerosol containing significant amounts of incomplete combustion and pyrolysis products. It is thought that.

US Pat. No. 7,753,056 U.S. Pat. No. 7,647,932 US Patent No. 7,368,897 U.S. Patent No. 8469035 U.S. Pat. No. 8,464,726 U.S. Pat. No. 8,616,217 US Pat. No. 8678013 US Pat. No. 8,915,255 US Patent Application Publication No. 2012/0042885 US Patent Application Publication No. 2013/0133675 International Publication No. 2012/0164077 International Publication No. 2013/098380 International Publication No. 2013/098405 International Publication No. 2013/098410 International Publication No. 2013/104914 International Publication No. 2013/120849 International Publication No. 2013/120854 International Publication No. 2013/162028 International Publication No. 20132/1600112 European Patent Application No. 1808087 European Patent Application No. 2550879

Tobacco Production, Chemistry and Technology, Davis et al. (Eds.) (1999) Chemical and Biological Studies on New Cigarette Prototypes that Heat Instead of Burn Tobacco, R.C. J. et al. Reynolds Tobacco Company Monograph (1988) Inhalation Toxiology, 12: 5, p. 1-58 (2000)

  The above needs and other needs are, in one aspect, an elongated smoking article having a tip end opposite to a tip end, a tip end portion disposed at the tip end, and a tip end. Satisfied by an aspect of the present disclosure that provides a smoking article comprising a heat-generating portion disposed in the vicinity of the. An outer wrapping material is wrapped at least around the heat generating portion and extends toward the mouth end portion so as to define a cylindrical rod. An aerosol generating portion is disposed inside the outer packaging material and between the heat generating portion and the mouth end portion and is configured to generate an aerosol in response to heat received from the heat generating portion, wherein the aerosol generating portion and the heat generating portion are The aerosol generating portion is further configured to cooperate to distribute heat received from the heat generating portion to prevent scorching of the outer packaging material.

  Thus, aspects of the present disclosure provide a smoking article, particularly a rod-like or elongated smoking article such as a cigarette. The smoking article includes an ignition end (i.e., an upstream end) and a mouth end (i.e., a downstream end) that are located at opposite ends of the smoking article, respectively. The smoking article further includes an aerosol generating system comprising (i) a heat generating region, part or segment and (ii) an aerosol generating region, part or segment located downstream of the heat generating segment. The exothermic segment includes a relatively short (longitudinal) heat source or fuel element (ie, exothermic element) made of a material such as, for example, a carbonaceous material that burns relatively cleanly. The aerosol-generating segment most preferably includes a substrate region, and in certain embodiments the substrate region includes pellets or beads formed from tobacco disposed within the substrate cavity. Alternatively, for example, the substrate region comprises a material comprising a reconstituted type of tobacco (eg, shredded cast sheet type material). The substrate cavity or substrate region in which the substrate material is disposed is preferably along a length that extends in the longitudinal direction of the smoking article by a metal foil (eg, heat conducting) layer or strip laminated to a paper-type packaging material. Surrounded. A substrate composed at least in part of tobacco functions as a carrier and source of aerosol-forming material.

  In certain aspects, the present disclosure provides a tip end segment, region, or portion disposed at the tip end and a tobacco rod segment, region, or portion disposed between the ignition end and the tip end portion ( Alternatively, an elongated smoking article is provided comprising other appropriately configured segments). The aerosol generation system is arranged as a segment located between the exothermic segment and the mouth end portion. That is, the aerosol generating segment is disposed longitudinally adjacent to a heat generating portion or segment disposed at the ignition end, and the two segments are configured such that the heat generated by the combustion of the components of the heat generating segment is generated by the aerosol generating segment. It is in a heat exchange relationship to act on the aerosol-forming component, resulting in the formation of an aerosol. The longitudinally extending outer surfaces of the heat generating segment and the aerosol generating segment are surrounded by an outer wrapping material to provide a rod that is attached to the tip end segment. A layer of thermally conductive material is disposed directly under the outer packaging material to provide an outer inner surface of the aerosol generating segment. The heat conducting layer most preferably overlaps the outer longitudinal surface of the region adjacent to the aerosol generating segment of the exothermic segment, and the heat conducting layer is optionally the outer longitudinal direction of the region adjacent to the aerosol generating segment of the tobacco rod segment. Can overlap the surface. Certain materials within the aerosol generating segment generate an aerosol in response to this heat under the action of heat generated by the burning fuel elements of the exothermic segment.

  In certain embodiments, the fuel element or heat source of the exothermic segment can include a material that can be characterized as a carbonized or pyrolyzed material derived from the carbonization or pyrolysis of a cotton material. In this regard, during consumption of the smoking article, the fuel element / heat source is ignited to maintain combustion (ie, smoldering) and activate the aerosol generating segment to generate sufficient heat to generate the aerosol, However, it may be preferable and / or desirable not to emit a flame. Thus, aspects of the present disclosure may relate to a fuel element / heat source configured or arranged to facilitate, for example, easy ignition or ignitability. In some cases, existing fuel elements / heat sources made of conventional materials can be optimized to produce the desired ignition / ignitability of the smoking article. In other cases, other materials such as additives (ie, test carbon or cotton linters) and / or catalysts may be used to improve the ignition / ignitability of existing fuel elements / Can be incorporated into a heat source. An exemplary embodiment of such a fuel element / heat source is disclosed, for example, in Nordskog et al. US patent application Ser. No. 14 / 755,205.

  In certain embodiments, the substrate region (aerosol generation system) comprises a form of tobacco that forms tobacco smoke that exhibits desirable sensory characteristics. For example, the substrate region may be (i) a pellet or bead consisting of tobacco and functioning as a carrier for an aerosol forming material such as glycerin (ie, the aerosol forming material is contained in or otherwise incorporated into the bead / pellet) Or may be contacted with beads / pellets and sealed into beads / pellets with a gelling agent / sealant to maintain the integrity of the aerosol-forming material with the beads / pellets until exposed to heat in use. And (ii) a form of tobacco that forms tobacco smoke exhibiting the desired sensory characteristics. Alternatively, for example, the substrate region may comprise (i) a cast sheet type strip or portion of reconstituted tobacco material that serves as a carrier for an aerosol-forming material such as glycerin; and (ii) tobacco smoke exhibiting desired sensory characteristics Can be composed of a mixture with the form of tobacco that forms. In certain aspects, the substrate region / aerosol generation system is individually or in cooperation with the exothermic segment so as to more uniformly or efficiently transfer and distribute the heat from the exothermic segment to the substrate region / aerosol generation system. Can be configured. Preferably, an increase in uniformity or efficiency in the transfer and distribution of heat from such a heat generating segment to the substrate region / aerosol generation system advantageously reduces, minimizes or eliminates scorching of the outer packaging material of the smoking article. To do. Further, the improvement in uniformity or efficiency in the transfer and distribution of heat from the heat generating segment to the substrate region / aerosol generation system can reduce scorching of the substrate region / aerosol generation system itself, or can be inhaled by the user. Reduction or minimization of adverse sensory effects caused by the burning of the substrate to the aerosol to be experienced can be at least facilitated.

  Accordingly, the present disclosure includes the following embodiments, but is not limited thereto.

  Embodiment 1: An elongated smoking article having a mouth end opposite to an ignition end, wherein the smoking article is arranged near a mouth end portion disposed at the mouth end, and the ignition end An outer packaging material wound at least around the heating portion and extending toward the mouth end portion to define a cylindrical rod, and an inner side of the outer packaging material and the suction portion. An aerosol generating portion disposed between the mouth end portion and configured to generate an aerosol in response to heat received from the heat generating portion. The aerosol generating portion and the heat generating portion are heated by the aerosol generating portion. A smoking article further configured to cooperate to distribute heat received from the portion to prevent scorching of the outer packaging material.

  Embodiment 2: The aerosol generating portion comprises a rod member having a length and a certain maximum diameter, the rod member being a right circular cylinder having a length and a maximum diameter equal to the length and the maximum diameter of the rod member, respectively. A smoking article of any of the embodiments described above or below or a combination thereof having a surface area greater than the surface area.

  Embodiment 3: The smoking article of any of the embodiments described above or below or a combination thereof, wherein the aerosol generating portion comprises a grooved rod member.

  Embodiment 4: A smoking article of any of the above or below embodiments, or combinations thereof, wherein the grooved rod member defines a channel extending longitudinally through the grooved rod member.

  Embodiment 5: The grooved rod member is extruded from a mixture comprising ground tobacco, calcium carbonate, binder, glycerin, water, and flavoring, smoking of any of the above or below embodiments or combinations thereof Goods.

  Embodiment 6: The aerosol generating portion comprises an aerosol generating element wrapped by a packaging material, the packaging material being located between the aerosol generating element and the outer packaging material, any of the above or below embodiments or those A combination of smoking goods.

  Embodiment 7: Packaging material is paper-foil sheet laminate, paper-foil-paper sheet laminate, paper-foil-tobacco sheet laminate, non-woven graphite sheet, graphene sheet, graphene-foil sheet laminate, graphene- Foil-paper sheet laminate, paper-graphene sheet laminate, graphene ink imprinted on paper sheet, graphene ink imprinted on foil sheet, carbon nanotube engaged with paper sheet or foil sheet, paper sheet Or a smoking article of any of the above or below embodiments or combinations thereof selected from the group consisting of fullerenes engaged with foil sheets and graphene engaged with paper sheets or foil sheets.

  Embodiment 8: The smoking article of any of the above or below embodiments or a combination thereof, wherein the graphene ink is imprinted on a paper sheet or foil sheet according to a continuous or discontinuous pattern.

  Embodiment 9: The paper sheet comprises a tobacco wrapping paper sheet, and the tobacco sheet comprises an extruded tobacco sheet, a cast tobacco sheet, or a reconstituted tobacco sheet, or any of the embodiments described above or below, or combinations thereof Smoking goods.

  Embodiment 10: The smoking article of any of the above or below embodiments or combinations thereof, wherein the foil sheet comprises a continuous foil sheet or individual foil strips.

  Embodiment 11: A smoking article according to any of the above or below embodiments or a combination thereof, further comprising a tobacco portion located inside the outer packaging material and between the heat generating portion and the aerosol generating portion.

  Embodiment 12: A smoking article of any of the above or below embodiments, or combinations thereof, further comprising a tobacco portion disposed inside the outer packaging material and between the aerosol generating portion and the mouth end portion.

  Embodiment 13: Non-woven graphite sheet or non-woven graphite / graphene wrapped around a portion of the exothermic portion and around a portion of the aerosol generating portion and extending toward the tip end portion inside the outer packaging material A smoking article according to any of the embodiments described above or below or a combination thereof, further comprising a composite sheet.

  Embodiment 14: A smoking article of any of the embodiments described above or below or a combination thereof, wherein the nonwoven graphite sheet is laminated with the outer packaging material.

  Embodiment 15: Further comprising a metal foil sheet laminated with an outer packaging material with an adhesive material in between, the adhesive material comprising a portion of aluminum hydroxide, the metal foil sheet being inside the outer packaging material A smoking article according to any of the embodiments described above or below, or a combination thereof, wrapped around the heat generating portion and around a portion of the aerosol generating portion and extending toward the mouth end portion.

  Embodiment 16: A smoking article according to any of the above or below embodiments or combinations thereof, wherein the outer packaging material comprises a portion of aluminum hydroxide, a portion of magnesium hydroxide, or a portion of calcium carbonate.

  Embodiment 17: Any of the above or below, further comprising a glass fiber sheet wrapped around the heat generating portion and around the portion of the aerosol generating portion inside the outer packaging material and extending toward the mouth end portion Smoking articles of embodiments or combinations thereof.

  Embodiment 18: Further comprising a heat conducting material engaged with the outer packaging material, wherein the heat conducting material is disposed inside the outer packaging material and at least partially wraps around the heat generating portion in the radial direction and in the longitudinal direction Is a smoking article according to any of the embodiments described above or below, or a combination thereof, extending so as to wrap from the exothermic part to the aerosol generating part.

  Embodiment 19: The thermally conductive material is a conductive ink imprinted on the outer packaging material, a metal layer deposited on selected portions of the outer packaging material, graphene engaged with the outer packaging material, or the outer A smoking article of any of the embodiments described above or below, or a combination thereof, comprising a carbon material engaged with a selected portion of the packaging material.

  Embodiment 20: The aerosol-generating portion is 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, a cut filler tobacco material treated with glycerin, aerosol-forming beads, a ceramic comprising glycerin Material, cast sheet of non-tobacco material in the form of cut filler, glass fiber mat containing tobacco-derived nicotine substance, foil sheet coated with aerosol-forming material, gathered paper containing tobacco-derived nicotine substance, tobacco-derived nicotine substance A smoking article according to any of the above or below embodiments or a combination thereof, comprising a non-tobacco material comprising: and a material selected from the group consisting of combinations thereof.

  Embodiment 21: A smoking article of any of the above or below embodiments, or combinations thereof, wherein the cut filler tobacco material treated with glycerin comprises between about 5% to about 25% glycerin.

  Embodiment 22: The aerosol generating portion includes a first portion and a second portion, and the first portion and the second portion are continuously disposed between the heat generating portion and the mouth end portion. A smoking article according to any of the embodiments described above or below or a combination thereof.

  Embodiment 23: The aerosol generating portion includes a first portion and a second portion, wherein the first portion of the aerosol generating portion is composed of a different material than the second portion of the aerosol generating portion. Or the smoking article of any embodiment mentioned later or those combination.

  Embodiment 24: The aerosol generating portion comprises a first portion and a second portion, wherein the first and second portions are combined to form a single aerosol generating element, as described above or below. A smoking article of any of the embodiments or combinations thereof.

  Embodiment 25: The aerosol generating portion comprises a porous ceramic rod member defining at least one conduit, the at least one conduit extending longitudinally through the porous ceramic rod member, as described above or below. A smoking article of any embodiment or combination thereof.

  Embodiment 26: The smoking article of any of the above or below embodiments, or combinations thereof, wherein the porous ceramic rod member comprises an aerosol former, flavor, or tobacco extract engaged with the porous ceramic rod member .

  Embodiment 27: The smoking article of any of the above or below embodiments, or combinations thereof, wherein the aerosol forming agent comprises glycerin and tobacco extract, wherein the tobacco extract comprises tobacco-derived nicotine.

  Embodiment 28: The porous ceramic rod member defines any one of the longitudinally extending open channels disposed at an angle around the outer surface of the porous ceramic rod member, as described above or below. Smoking products in form or a combination thereof.

  Embodiment 29: The aerosol generating portion is composed of aerosol-forming beads disposed continuously with respect to the heat-generating portion, and includes a non-tobacco plug member disposed between the beads and the mouth end portion, as described above or below. A smoking article of any of the embodiments or combinations thereof.

  Embodiment 30: The aerosol generating portion comprises a plurality of rod members extending parallel to each other, the rod members being composed of tobacco material, non-tobacco material, or ceramic material, any of the above or below embodiments or Smoking goods of those combinations.

  Embodiment 31: The exothermic portion includes a heating element comprising a carbonized or pyrolyzed material comprising a flammability enhancing material selected from the group consisting of carbon, cotton linters, glass microspheres, catalysts, and combinations thereof. A smoking article according to any of the embodiments described above or below or a combination thereof.

  Embodiment 32: further comprising an overlap material wrapped around at least the outer wrapping material wrapped around at least the heat generating portion, wherein the overlap material is at least partially embossed from the outer wrapping material A smoking article of any of the embodiments described above or below or a combination thereof.

  Embodiment 33: Further comprising a thermochromic ink material interacted with the outer wrapping material, wherein the thermochromic ink provides a visual indication in response to the outer wrapping material exceeding a temperature threshold. A smoking article according to any of the above-described or below-described embodiments or a combination thereof.

  These and other features, aspects, and advantages of the present disclosure will become apparent from the following detailed description when taken in conjunction with the accompanying drawings, which are briefly described below. It will be. This disclosure describes any combination of two, three, or four or more features or components as described in this disclosure or as described in any one or more of the claims. Inclusion of whether an element is expressly combined in the description or claim of a particular embodiment herein, or described otherwise. This disclosure is intended to be understood in its entirety, and therefore, unless otherwise apparent from the context of this disclosure, any separable feature or component of this disclosure is intended to In any of the embodiments, it should be considered as intended, ie, combinable.

  Having thus described the present disclosure generally, reference will now be made to the accompanying drawings, which are not necessarily drawn to scale.

FIG. 2 schematically illustrates a longitudinal cross-sectional view of an exemplary smoking article according to one aspect of the present disclosure. FIG. 4 schematically illustrates a longitudinal cross-sectional view of an exemplary disassembled smoking article according to another aspect of the present disclosure. FIG. 6 schematically illustrates a longitudinal cross-sectional view of an exemplary disassembled smoking article according to yet another aspect of the present disclosure. Figure 2 schematically illustrates an aerosol generating substrate element according to another aspect of the present disclosure. Figure 2 schematically illustrates an aerosol generating substrate element according to another aspect of the present disclosure.

  The present disclosure will now be described more fully hereinafter with reference to the accompanying drawings, in which some, but not all aspects of the present disclosure are shown. Indeed, the present disclosure may be embodied in a multitude of different forms and should not be construed as limited to the embodiments set forth herein, but rather may be taken by law to which the present disclosure applies. Is presented to meet the requirements. Like numbers refer to like components throughout.

  FIG. 1 illustrates an exemplary smoking article 10 in the form of a cigarette according to one aspect of the present disclosure. Preferably, the smoking article 10 has the overall size, shape, and overall appearance of a filtered cigarette. The smoking article 10 has a rod-like shape and includes an ignition end 14 and a mouth end 18. The ignition end 14 is provided with a generally cylindrical heating segment 35 extending in the longitudinal direction. The heat generating segment 35 includes a heat source 40 surrounded by a heat insulating material 42, most preferably the heat source 40 is coaxially surrounded by an outer packaging material 45. The heat source 40 is preferably configured to be activated by direct ignition of the ignition end 14. That is, the heat source or fuel element is designed to generate heat upon ignition or burning or smoldering. In addition, the smoking article 10 includes a filter segment 55 located at the opposite end (i.e., the mouth end 18) and an aerosol generating segment 61 located between the filter segment and the heat source.

The exothermic segment 35 most preferably has a generally cylindrical shape and includes a combustible fuel element 40 comprising a combustible carbonaceous material. Such combustible carbonaceous materials generally have a high carbon content. Preferred carbonaceous materials are composed primarily of carbon and are typically greater than about 60%, generally greater than about 70%, often greater than about 80%, and more often about 90% by dry weight. % Carbon content. Such combustible fuel elements may include components other than combustible carbonaceous materials (eg, tobacco components such as powdered tobacco or tobacco extract; flavoring agents; salts such as sodium chloride, potassium chloride, and sodium carbonate; heat Stable graphite fibers; iron oxide powder; glass filaments; powdered calcium carbonate; alumina granules; ammonia sources such as ammonia salts; and / or binders such as guar gum, ammonium alginate, and sodium alginate). A typical fuel element has, for example, a length of about 12 mm and an overall outer diameter of about 4.2 mm. Typical fuel elements can be extruded or formulated using pulverized or powdered carbonaceous material, exceeding about 0.5 g / cm ³ on a dry weight basis, and often Having a density greater than about 0.7 g / cm ³ and more often greater than about 1 g / cm ³ .

  The layered heat insulating material 42 can be composed of glass filaments or fibers. The insulation 42 can function as a jacket that helps to keep the heat source 40 securely in place within the smoking article 10 (ie, the heat source and outer wrapping to secure the heat source inside the outer packaging material). Placed between the material). Preferably, the thermal insulation is provided in the form of a non-woven mat of glass filaments. The insulation 42 may be provided as a multilayer component including, for example, an inner layer or mat 67 of nonwoven glass filaments, an intermediate layer of reconstituted tobacco paper 68, and an outer layer of nonwoven glass filaments 69. it can. These layers may be arranged concentrically and may cover and / or surround the heat source in a manner that each overlaps in succession.

  Preferably, both ends of the heat generating segment 35 are open at the ignition end 14 so as to expose at least the heat source 40 and the heat insulating material 42. The heat source 40 and the surrounding insulation 42 have the same length of both materials (ie, particularly at the downstream end of the heat generating segment, the ends of the insulation 42 are flush with the respective ends of the heat source 40. Can be configured). Optionally, although not preferred, the thermal insulation 42 can extend slightly beyond either or both ends of the heat source 40 (eg, greater than about 0.5 mm to about 2 mm). . Further, the heat and / or heated air generated when the ignition end 14 is ignited during use of the smoking article 10 passes through the heat source 40 itself (ie, the heat source 40 when the smoker sucks the mouth end 18). Through the longitudinal channel extending therethrough) and / or through the insulation 42 longitudinally and can easily pass through the heat generating segment 35.

  Preferably, the outer wrapping material 75 surrounds the thermal insulation 42 over the outermost surface extending in the longitudinal direction of the ignition end 14 of the smoking article 10. The outer packaging material 75 is typically, for example, R.I. J. et al. Wrapping paper material, such as the type of wrapping material used as a packaging material around the heat-insulating region of a cigarette heat source segment sold under the brands “Premier” and “Eclipse” by Reynolds Tobacco Company. Thus, “outer wrapping material 75” may also be referred to as “outer wrapping paper 75” to indicate such aspects, but outer wrapping material 75 is not limited to wrapping paper material.

  The exothermic segment 35 is preferably arranged so that one end thereof is positioned at or closest to the most ignited end 14, and the downstream aerosol generating segment 61 is aligned in an axial relationship in an end-to-end relationship. Are in contact with each other and are preferably located without any barriers (other than open air space) between them. The proximity of the heat generating segment 35 to the ignition end 14 provides direct ignition of the heat source 40 of the heat generating segment 35.

  The cross-sectional shape and dimensions of the exothermic segment 35 prior to combustion in use can vary. Preferably, the cross-sectional area of the fuel element / heat source 40 comprises about 10% to about 35% of the total cross-sectional area of the exothermic segment 35, often about 15% to about 25%, while outside or surrounding area The cross-sectional area (including insulation 42 and associated outer packaging material) comprises about 65% to about 90%, and often about 75% to about 85% of the total cross-sectional area of the heat generating segment 35. For example, for a cylindrical smoking article 10 having a circumference of about 24 mm to about 26 mm, an exemplary fuel element / heat source 40 is about 2.5 mm to about 5 mm, often about 3 mm to about 4.5 mm. It has a generally circular cross-sectional shape with an outer diameter of.

  The components of the exothermic segment can vary. One component of the exothermic segment is a fuel element. Suitable fuel elements typically include carbonaceous materials having a high carbon content and can also include components such as graphite and / or alumina. Carbonaceous fuel elements include components and configurations of the type incorporated in cigarettes marketed under the brand names “Premier”, “Eclipse”, and “Steam Hot One”. Further, representative types of exothermic segments, features of fuel elements, their representative components, designs, and configurations, and methods and methods for manufacturing those exothermic segments and their fuel elements are described by Banerjee et al. U.S. Pat. No. 4,714,082; Clearman et al. U.S. Pat. No. 4,756,318; Clearman et al. U.S. Pat. No. 4,881,556; Clearman et al. U.S. Pat. No. 4,988,619; Description: Clearman et al. US Pat. No. 5027837; Banerjee et al. US Pat. No. 5,067,499; Farrier et al. US Pat. No. 5,076,297; Clearman et al. US Pat. No. 5,099,861. Banerjee et al. US Pat. No. 5,105,831; White et al. US Pat. No. 5,129,409; Best et al. US Pat. No. 5,148,821; Clearman et al. US Pat. No. 5,156,170; Riggs et al. No. 5,178,167; Shannon et al. US Pat. No. 5,211,684; Clearman et al. US Pat. No. 5,247,947; Clearman et al. US Pat. No. 5,345,955; Barnes et al. US Pat. No. 5,461,879; Barnes et al. US Pat. No. 5,469,871; Riggs US Pat. No. 5,551,451; Meiring et al. US Pat. No. 5,560,376; Meiring et al. US Pat. No. 5,706,834; Iring et al. US Pat. No. 5,727,571; Borschke et al. US Pat. No. 783688897; Banerjee et al. US Pat. No. 8617263; and Crooks US Pat. No. 8678013; and Banerjee et al. Published US 2005/0274390; Banerjee et al. US 2007/0215168; Stone et al US 2012/0042885; Stone et al US 2013/2015. No. 0269720; and Conner et al., US Patent Application Publication No. 2015/0083150. See also the fuel element configurations and components of the type described in Roberts et al. US Pat. No. 4,819,655 and Takeuchi et al. US Patent Application Publication No. 2009/0044818.

  Certain fuel elements can include high carbon content carbonaceous material obtained from carbonized or pyrolyzed cotton-containing fibers (eg, cotton linters). Descriptions of carbonized or pyrolyzed cotton linter materials and how and how to incorporate these materials into smoking articles, carbonized smoking materials, and fuel elements are described, for example, in Rainer et al., US Pat. No. 4,219,031. U.S. Pat. No. 4,920,990 to Lawrence et al .; U.S. Pat. No. 5,0074,440 to Robinson et al .; U.S. Pat. No. 5,060,673 to Lehman; U.S. Pat. No. 5,129,409 to White et al .; See US Pat. No. 5,211,684; and US Pat. No. 8,119,555 to Banerjee et al. The fuel element of the exothermic segment is most preferably surrounded or otherwise coated with thermal insulation or other suitable material. The insulation can be configured and used to support, maintain, and hold the fuel element in place within the smoking article. Furthermore, the heat insulating material can be configured such that the air and aerosol that is sucked can pass easily. Suitable insulation assemblies are incorporated into cigarettes of the type marketed under the brand names “Premier”, “Eclipse”, “Steam Hot One”. In addition, examples of thermal insulation materials, components of thermal insulation assemblies, configurations of exemplary thermal insulation assemblies in the heat generation segment, packaging materials for thermal insulation assemblies, and methods and methods for manufacturing these components and assemblies are described by Pryor. U.S. Pat. No. 4,807,809; Hancock et al. U.S. Pat. No. 4,893,637; Barnes et al. U.S. Pat. No. 4,938,238; Shannon et al. U.S. Pat. No. 5,278,836; Lawson et al. White et al. US Pat. No. 5,105,838; Banerjee et al. US Pat. No. 5,198,737; Clearman et al. US Pat. No. 5,247,947; Banerjee et al. US Pat. No. 5,303,720. Clearman et al. US Pat. No. 5,345,955; Casey, III et al. US Pat. No. 5,396,911; White US Pat. No. 5,546,965; Meiring et al. US Pat. No. 5,727,571; Wilkinson et al. US Pat. No. 5,902,431; US Pat. No. 5,944,025 to Cook et al .; US Pat. No. 8,244,538 to Thomas et al .; US Pat. No. 8,464,726 to Sebastian et al .; and US Pat. No. 8678013 to Crooks et al. Is further described in the book.

  A generally cylindrical aerosol generating segment 61 extending in the longitudinal direction is located downstream of the heat generating segment 35. The aerosol-generating segment 61 includes a base element 85 that includes a material that is itself an aerosol-forming agent or aerosol-forming substance, or otherwise serves as a carrier for the aerosol-forming agent or aerosol-forming material (not shown). . For example, the aerosol-generating segment can include a reconstituted tobacco material that includes processing aids, flavoring agents, and / or glycerin. The above-mentioned components of the aerosol generating segment can be placed inside and surrounded by the packaging material 90. The wrapping material 90 can be configured to facilitate the transfer of heat from the ignition end 14 of the smoking article 10 (eg, from the heat generating segment 35) to the components of the aerosol generating segment 61. That is, the aerosol generating segment and the heat generating segment can be configured in a heat exchange relationship with each other, and such a heat exchange relationship can be promoted by the packaging material 90. The heat exchange relationship is such that sufficient heat from the heat source 40 is supplied to the aerosol generating segment 61 to volatilize the aerosol forming material (ie, combined with the substrate element 85) for aerosol formation and generation. It is a relationship. In some cases, the packaging material 90 may be a separate component with respect to the outer packaging material 75 or may engage the outer packaging material 75 in various ways. In other cases, the packaging material 90 can include a thermal insulation material to insulate the base element 85 from the outer packaging material 75. For example, the packaging material 90 can include a glass fiber mat having a thickness between about 50 μm and about 500 μm.

  In one aspect of the present disclosure, the heat exchange relationship is achieved by placing the exothermic segment 35 and the aerosol generating segment 61 in series in close proximity to each other. In some cases, these segments may be placed in series with the ends in contact with each other. A heat exchange relationship can also be achieved by extending the thermally conductive material from the vicinity of the heat source 40 to and / or around the area occupied by the aerosol generating segment 61. For example, in one embodiment, the exemplary packaging material 90 for the substrate element 85 is a heat generating segment to effect volatilization of the aerosol-forming component contained in the aerosol generating segment 61 (ie, combined with the substrate element 85). A heat transfer element or characteristic to conduct heat from 35 to the aerosol generating segment 61 (and / or to keep the heat interacting with the aerosol generating segment 61 along a length of the aerosol generating segment 61) Can be included. In other embodiments, the exemplary packaging material 90 and / or outer packaging material 75 is contained in the aerosol generating segment 61 or from the exothermic segment 35 while still causing volatilization of the aerosol forming component associated with the substrate element 85. Includes heat transfer characteristics to dissipate heat that is not directed to the aerosol generating segment 61 and / or to distribute heat evenly or more consistently between the exothermic segment 35 and the aerosol generating segment 61 be able to. Such a wrapping material 90 can be provided, for example, by a laminated paper / foil sheet consisting of an outer layer 94 of a paper-type material sheet and an inner layer 96 of a thermally conductive metal foil sheet. The metal foil sheet 96 may extend along at least a portion of the length of the aerosol generating segment 61 from, for example, a region downstream of the heat source 40. The foil / inner layer 96 flakes may be in the form of one or more separate longitudinally extending strips attached to the outer layer 94 or in cooperation with the outer layer 94 into the heat generating segment 35 and the aerosol generating segment 61. It can be combined with the outer layer 94 in the form of a continuous sheet that surrounds the overlapping areas described above.

  In some aspects of the present disclosure implementing packaging material 90, providing thermal conduction of packaging material 90 may be accomplished in a variety of ways. In general, the wrapping material 90 in the form of a laminated paper / foil sheet has a typical length between about 8 mm and about 50 mm (ie, the aerosol generating segment 61 in a typical smoking article of the type described herein. Along). Laminate / foil sheets can be perforated, etched, embossed, or primed, for example, to increase ease of manufacture. In some cases, the performance of the laminated paper / foil sheet is altered and / or the paper sheet portion of the laminate and / or outer wrapping paper 75 wrapped around the wrapping paper 90 and / or the aerosol generating segment 61 (ie, To reduce visual scoring of the outer layer 94), the thickness of the foil used in the laminate is varied as necessary or desired, eg, between about 0.0001 inches to 0.005 inches, Or it can be increased or decreased.

  Laminate / foil sheets can be formed in a variety of ways. For example, use a thermally conductive ink (in some cases, a thermally conductive metal ink) to print on a paper part and then use the printed ink to form a foil layer (sheet or strip) on the paper part. (And / or may be at least partially absorbed / integrated into the paper portion). Such a thermally conductive ink may be made of, for example, carbon, graphite, graphene, silver, or any other suitable heat or heat conductive material, or combinations thereof, to conduct heat along the paper portion. The substrate element can be heated to generate an aerosol from the substrate element. Preferably, such a thermally conductive ink can be printed on a foil sheet or conventional cigarette paper according to a continuous or discontinuous pattern, wherein the basis weight of the cigarette paper is from about 20 gsm to about 100 gsm. It is a range.

  In other cases, a heat transfer or heat transfer material such as, for example, a metal foil (ie silver), a conductive carbon material (ie graphene), or any other suitable heat transfer material, or combinations thereof, for example To facilitate ease of manufacture and enhance functionality, various configurations (i.e., discrete strips, full strips) to traditional cigarette paper using, for example, "island placement" or selective deposition / engagement techniques. Sheet, complete coating, etc.) or otherwise applied. In any case, the realization of the laminated paper / foil sheet as the wrapping paper 90 may in some cases cause the exothermic segment 35 to reduce scorching of the outer wrapping paper 75 and / or other components of the smoking article. Dissipate the generated heat or direct it elsewhere. Thus, the elimination of scorch can improve the taste or perception of the generated aerosol to the user. That is, a burnt substance can impart undesirable taste or perception to the aerosol produced, and such reduction, minimization, or elimination of burnt improves, for example, the flavor of the aerosol to the user. Undesirable visual effects caused by such scorching can be eliminated. Accordingly, some aspects of the present disclosure are substrate elements that contribute or otherwise affect the heat generated by the exothermic segment 35 and directed to the aerosol generating segment 61 to the aerosol that is inhaled and experienced by the user. 85, including a configuration for more complete and efficient guidance and dispensing without scorching of the outer wrapping paper 90 or other components. In addition, because the aerosol generating segment 61 can include glycerin or other leachable material in some cases, various aspects of the packaging material 90 disclosed herein may include glycerin or other leachables. The prevention or minimization of leaching of the active substance from the aerosol generating segment 61 to the outer wrapping paper 75 can also be targeted. That is, some aspects of the present disclosure provide packaging material 90 configured to prevent or minimize discoloration of outer wrapping paper 75 that may be caused by glycerin or other leachable material that leaches from aerosol generating segment 61. Can be included.

  In some embodiments, the wrapping paper 90 can include a cigarette paper / foil / tobacco paper in the form of a three-layer sheet, and the configuration of such a three-layer sheet is, for example, a scorch of a particular component of a smoking article. Alternatively, reducing, minimizing, or eliminating carbonization and directing more heat to the aerosol generation segment 61 can further promote improved taste or perception of the generated aerosol experienced by the user. The composition of the tobacco paper / sheet can vary, for example, consisting of and including various ratios of burley tobacco, iron-tube dried tobacco, oriental tobacco, or any other suitable type of tobacco, or combinations thereof be able to. The tobacco content in the tobacco paper / sheet can be up to about 85% tobacco, and the tobacco paper / sheet can have a basis weight ranging from about 20 gsm to about 100 gsm. In some cases, the three-layer form of wrapping paper 90 may consist of tobacco paper / foil / tobacco paper as needed or desired. In other cases, two layers of tobacco paper / foil can be realized, wherein the tobacco sheet is made of aluminum or other thermally conductive foil having a thickness in the range of about 0.0005 inches to about 0.002 inches. Such two-layer sheets can be laminated and can exhibit a basis weight between about 60 gsm and about 100 gsm.

  According to a still further aspect, the wrapping paper 90 comprises a paper-foil sheet laminate, a paper-foil-paper sheet laminate, a paper-foil-tobacco sheet laminate, a non-woven graphite sheet, a non-woven graphite and a graphene composite sheet, Graphene sheet, graphene-foil sheet laminate, graphene-foil-paper sheet laminate, paper-graphene sheet laminate, graphene ink imprinted on paper sheet, graphene ink imprinted on foil sheet, paper sheet or foil It can be configured as either carbon nanotubes engaged with the sheet, fullerenes engaged with the paper sheet or foil sheet, and graphene engaged with the paper sheet or foil sheet. In such a case, for example, if the graphene includes one of the outer layers of the stack, it may be desirable for the graphene layer of the stack to provide the initial layer of the stack that is closest to the substrate element 85. . In another example, for example, in the case of a graphene-foil sheet laminate, the foil sheet layer of the laminate provides the initial layer of the laminate closest to the substrate element 85, while the graphene layer is Acting as a heat shield with the outer packaging material 75 or in reverse order, the graphene layer of the laminate band is the initial layer of the laminate band closest to the substrate element 85 and the foil sheet layer is the substrate element 85 And serve as a heat shield between the outer packaging material 75 and the outer packaging material 75. When the wrapping paper 90 includes a heat conductive layer and a paper sheet or a foil sheet, a heat insulating layer or a heat layer can be disposed therebetween.

  For example, in embodiments where graphene ink imprinting is performed, the ink may be given various thicknesses, patterns, surface coverage, and composition gradients, for example, gravure printing, flexographic printing, offset printing, screen printing, ink jet printing. Or can be applied using a variety of printing processes, such as other suitable printing methods.

  In other embodiments, the graphene foil or graphene conductive sheet is disposed between cigarette paper (ie, outer wrapping material 75) and aluminum foil (ie, a foil sheet layer incorporated into wrapping paper 90) to provide outer packaging. A paper / graphene / foil laminate structure including material 75 and wrapping paper 90 can be generated. In such cases, the graphene portion can be completely encased (ie, between the inner and outer layers) to prevent or minimize material migration or migration during product manufacture and use, Can also prevent or minimize the leaching of glycerin from the base element 85 into the outer packaging material 75. However, a packaging material 90 configured to achieve the objectives herein can be structured or configured in a number of different ways in addition to the various configurations disclosed herein. In this regard, those skilled in the art will appreciate that the exemplary configurations disclosed herein are not intended to be limiting.

The outer wrapping paper 75 is generally disposed around the heat generating segment 35, extends in the longitudinal direction (downstream), and is configured to wrap around the aerosol generating segment 61 along at least a part of the length of the aerosol generating segment 61. The When so engaged around the above-described components of the smoking article, the outer wrap 75 extends over the interface between the heat generating segment 35 and the aerosol generating segment 61, and thus tends to eliminate scorching or scorching. Minimization (as well as a tendency to prevent leaching) can also be desirable. Thus, in some aspects of the present disclosure, the outer wrapping paper 75 is at least used as a filler in the paper matrix of the outer wrapping paper 75 as an anti-burning agent, such as calcium carbonate (CaCO ₃ ), aluminum hydroxide, hydroxide It can be treated with and / or interacted with magnesium and / or combinations thereof, or otherwise exposed to them.

When the wrapping paper 90 and / or the outer wrapping material 75 are wrapped around suitable components of the smoking article, both ends sealed by, for example, an adhesive material (ie, a seam extending longitudinally along the smoking article) It will also be appreciated by those skilled in the art that they may have edges that overlap in the angular direction to form. Thus, in some aspects of the present disclosure, the adhesive material may be an adhesive material along the longitudinally extending seam of the outer wrapping material 75 and / or the scorch of the outer wrapping material 75 wrapped around the components of the smoking article. Alternatively, fillers such as calcium carbonate (CaCO ₃ ), aluminum hydroxide, magnesium hydroxide, and / or combinations thereof may also be included to prevent, minimize, or eliminate carbonization.

  The substrate element 85 that forms part of the aerosol generating segment 61 can comprise tobacco. More particularly, when including tobacco, the substrate element 85 can be comprised of a blend of flavored tobacco and fragrant tobacco, for example in the form of cut filler. The tobacco can then be treated with an aerosol forming material and / or at least one flavoring agent. The substrate element 85 can also be composed of processed tobacco in the form of a cut filler (eg, reconstituted tobacco manufactured using a cast sheet or papermaking type process). A particular cast sheet structure can include about 270 mg to about 300 mg of tobacco per 10 mm linear length of the cast sheet. In other cases, the substrate element 85 can be composed of a mixture of formed tobacco pellets. Next, in certain aspects of the present disclosure, the substrate element 85 configured in the form of tobacco is treated with an aerosol-forming material and / or at least one flavorant, and a flame retardant (eg, diammonium phosphate, other similar Types of salts, and / or other suitable flame retardant materials), or can be processed to include them. Inclusion of the flame retarding material in the substrate element can be configured to prevent ignition of the material forming the substrate and / or prevent scorching of the substrate element by the heat generating segment. Further, the metallic inner layer or surface 96 of the packaging material / outer layer 94 of the aerosol generating segment 61 can serve as a carrier for the aerosol forming material, tobacco component, and / or at least one flavoring agent.

As used herein, the term “tobacco pellets” refers to tobacco beads, pellets, or other formed, molded, compressed, extruded, or otherwise formed into a desired shape. It is intended to include separate small units. For example, tobacco pellets can be formed using a so-called marmarizing process. Tobacco pellets can have a smooth and regular profile (eg, sphere, cylinder, oval, etc.) and / or can have an irregular profile. In one example, the diameter of each tobacco pellet may range from less than about 1 mm to about 2 mm. Tobacco pellets can at least partially fill the substrate cavity of the smoking article, as described herein. That is, the substrate element 85 can take the form of pellets or other loose objects that occupy space in the aerosol generating segment 61 downstream of the heat generating segment 35 adjacent to the heat generating segment 35. In one example, the volume of the substrate cavity can range from about 500 mm ³ to about 700 mm ³ (eg, the cavity diameter is about 7.5 to about 7.8 mm, and the cavity length is about 11 to about 15 mm. Yes, a smoking article substrate cavity having a generally cylindrical shape). In one example, the mass of tobacco pellets within the substrate cavity can range from about 200 mg to about 500 mg. For example, tobacco pellets may be separated from a suitable portion of the aerosol generating segment 61 (eg, a cylindrical area bounded by the end of the heating segment 35 and the filter segment 55 inside the packaging material of the aerosol generating segment 61). It can be used to fill with a packing density of about 400 mg / cm ³ .

  The configuration and arrangement of the base element 85 may vary according to various aspects of the present disclosure. In one aspect, the substrate element 85 can be formed as a monolithic or integrated structure, for example, by an extrusion, molding, or casting process. In some preferred embodiments, the monolithic substrate element 85 can include tobacco or tobacco products. For example, in one embodiment, the monolithic substrate element 85 formed in the extrusion process can include glycerin, ground tobacco, calcium carbonate, binders, flavors, and water. More particularly, on a dry weight basis, the extruded material comprises about 37.86% ground tobacco, about 39.82% calcium carbonate, carboxymethylcellulose (CMC) or cellulose gum, such as about 1.00% binder. And about 21.32% glycerin and flavoring (~ 20% glycerin).

  The monolithic substrate element 85 formed by an extrusion, molding, or casting process can have a variety of final shapes and shapes that facilitate improved heat transfer from the heat generating segment 35, and Burning or carbonizing components on the base side of the smoking article by promoting more efficient and effective distribution of heat to the base element 85 instead of other base side components of the smoking article. Can be reduced, minimized or eliminated. For example, the extruded substrate element 85 can have the form and configuration of a monolithic grooved rod member 300 (see, eg, FIG. 4). That is, the rod member can include a plurality of lobes 310 disposed at an angle around the periphery of the rod member, with adjacent lobes defining an open channel 320 extending longitudinally therebetween. In some examples, the fluted rod member may further define one or more conduits 330 that extend longitudinally through the central portion of the cross-section or through one or more lobes. The location, dimensions, and / or configuration of the open channels and / or conduits can vary to obtain specific performance characteristics as needed or desired. For example, one effect of an open channel is an increase in exposed surface area when compared to a solid cylindrical rod member, which is in line with increased cigarette yield (ie, increased service life) and smoking articles. It has effects such as reduced pressure drop (ie, reduced resistance to inhalation).

  The effective diameter (ie, maximum outer diameter) of the grooved rod member can vary, for example, from about 5.8 mm to about 7.3 mm. In order to incorporate the grooved rod member into the aerosol generating segment 61, the aerosol generating segment can be formed with an outer packaging material 75 (although any of the configurations of the packaging material 90 disclosed herein can be implemented as needed or desired). Prior to wrapping, larger diameter extrudates can be wrapped with, for example, paper / foil laminates or paper / foil / paper laminates, while smaller diameter extrudates can be wrapped with, for example, a single layer of glass fiber mat. It can be wrapped and then further wrapped either in paper / foil laminate or paper / foil / paper laminate. The increase in surface area due to the grooved rod member results in a reduction in the surface area of the rod member in contact with the package disposed between the rod member and the outer wrapping material 75, thus leading to the outer wrapping material 75 during use of the smoking article. Less heat will be transmitted. An internal conduit can further provide additional surface area of the rod member that is heated by the heat generating segment and helps draw some of the heat from the outermost surface of the grooved rod member (ie, the outermost portion of the lobe). be able to. In this way, visual scoring of the outer packaging material 75 can be reduced. Furthermore, the increased surface area of the grooved rod member compared to the solid cylindrical rod member can be further increased by additional conduits, but is incorporated into the base element 85 and exposed to heat from the heat generating segment 35. It provides an additional volume of aerosol forming material (ie, proportional to the surface area of the substrate element 85) and can reduce the inhalation that the user needs to add to the smoking article. Therefore, such a smoking article can show an improvement in life as compared with a smoking article incorporating the solid cylindrical base element 85.

  Paper / foil laminate or paper / foil / formed with a single layer of paper / foil laminate or paper / foil / paper laminate, or a glass fiber mat disposed therebetween, directly forming a wrap of substrate element 85 Instead of either paper laminate, a two-layer or three-layer laminate of tobacco paper can be used as a wrap. In such cases, if the wrap is subjected to heat from the exothermic segments sufficient for charring or scorching of the wrap, the initial layer of the wrap laminate can preferably comprise tobacco paper. In this way, scorching or carbonization of the tobacco paper layer can provide tobacco flavor to the aerosol formed, and thus has little or no adverse effect on the taste or perception of the aerosol formed. More specifically, cast paper or extruded tobacco paper, such as tobacco paper, can be laminated to a paper / foil two-layer laminate to form a paper / foil / tobacco paper three-layer laminate. The tobacco paper provides the initial layer of the laminate closest to the substrate element 85. Such a three-layer laminate configuration can be applied, for example, to both tobacco-containing and non-tobacco substrate elements, for example, a seam formed by wrapping a three-layer laminate around the substrate element (ie, tobacco) Improved adhesion along the paper and the cigarette paper forming the outer layer of the three-layer laminate), and the aerosol taste and / or the user experience A positive aspect can be added to perceptual characteristics. Those skilled in the art, in understanding the inventive aspects of the present disclosure, may use paper / foil / tobacco paper three-layer laminates of the type disclosed herein for various tobacco-containing or tobacco-free types described in this disclosure. It will be further understood that it can be applied to both the substrate element and the aerosol generating segment.

  In another aspect of the present disclosure, the substrate element 85 takes the form of a plurality of solid cylindrical rod members 400 (see, eg, FIG. 5) that extend parallel to each other from the interface between the heat generating segment 35 and the aerosol generating segment 61. Can do. Such solid cylindrical rod members can be formed, if necessary, using extrusion methods, or by molding or casting, such as with glycerin, ground tobacco, calcium carbonate, binders, flavors, and water. Can be configured. In some examples, the solid cylindrical rod member can have a diameter of about 2.9 mm, and a plurality of such rods are bundled or stacked for insertion into the aerosol generating segment 61 as a base element 85. be able to. Thereafter, the solid cylindrical rod member as an assembly can be wrapped under similar conditions in a manner similar to the configuration of the grooved rod member disclosed herein.

  In yet another aspect, the material composition used for the extruded rod, i.e., for example, from about 0.3 mm to about 1 using glycerin, ground tobacco, calcium carbonate, binders, flavors, and water instead. A flat sheet having a thickness between .7 mm can be formed. In some examples, the sheet can also be formed (or shaped or cast as needed) by an extrusion process, after which the sheet is dried to form the substrate material. The dried sheet can then be disassembled, for example by cutting the sheet into strips or chopping the sheet. The cut / chopped portions of the formed sheet are then stacked or collected and deposited on the aerosol generating segment 61 as a substrate element 85 in a manner similar to cut filler tobacco (ie, cut instead of cut filler tobacco). Can be deposited in the same manner as filler tobacco).

  In some embodiments, the substrate element 85 can be comprised of a cast sheet that includes, for example, tobacco material. Such cast sheets can be formed by a process in which a selected tobacco-containing mixture is cast, dried, and cut or chopped into strips. In some examples, the cut strips or chopped portions of the cast sheet may have other cut fillers (ie, with or without additional aerosol formers, but traditional Can be mixed with cut filler tobacco) to provide the user's desired taste and perception and facilitate the manufacturing process. In one example, the selected tobacco-containing mixture is, for example, (by dry weight) about 66.60% ground tobacco, about 3.75% diammonium phosphate, about 4.65% ammonium hydroxide, and about It can be characterized as a pectin free mixture containing 25% glycerin and flavoring. To treat the pectin free mixture, ground tobacco, diammonium phosphate, ammonium hydroxide, and water are added at about 160 ° for about 1.5 hours, for example, to improve or enhance the sensory quality of the resulting mixture. F can be heated. Glycerin and flavor can then be added to the remaining mixture upon cooling after the heating step. The resulting mixture can then be used to form a cast sheet.

  In another example, the selected tobacco-containing mixture is, for example, about 65.62% ground tobacco (on a dry weight basis), about 4.50% sodium alginate, about 1.13% sodium hydroxide or others. Can be characterized as a non-ammonia mixture comprising about 25% glycerin, about 25% glycerin, and about 3.75% wood pulp. To treat this non-ammonized mixture, ground tobacco, sodium alginate, and water are heated to about 160 ° F. for about 1.5 hours, for example, to improve or improve the sensory quality of the resulting mixture. be able to. The hydrated wood pulp, binder, glycerin, and flavor can then be added to the remaining mixture upon cooling after the heating step. The resulting mixture can then be used to form a cast sheet.

  In another example, the selected tobacco-containing mixture is, for example, (on a dry weight basis) about 51.8% tobacco pulp, about 4.2% wood pulp, about 22.0% concentrated tobacco extract, And can be characterized as a tobacco-containing reconstituted material containing about 22.0% glycerin and flavoring. Sheets can be formed from tobacco-containing reconstituted material in a manner similar to conventional reconstituted sheets. For example, water soluble elements are first removed from tobacco pulp flakes and the remaining tobacco pulp is concentrated to a solid content of about 25%. Wood pulp can then be added to tobacco pulp to form a base sheet that can be of various basis weights between about 120 grams / square meter (gsm) to about 240 gsm. Glycerin is then mixed (ie, in a 1: 1 ratio) with concentrated tobacco-derived nicotine (TDN) extract and added to the base sheet. The formed base sheet can then be dried and cut into strips or chopped. Similar to the cast sheet, the cut strip or shredded reconstituted sheet may be replaced with other cut fillers (ie, with or without additional aerosol forming agent, but traditional Cut filler tobacco) (ie, traditional cut filler tobacco with or without additional aerosol forming agent).

  In another example, a selected tobacco-containing mixture can be characterized as a traditional cut filler tobacco material with increased glycerin content. In such cases, the cut filler tobacco can contain between about 5% to about 30% glycerin or interact. Thereafter, the cut filler tobacco material having a high glycerin content can be used as the main substrate (ie, the substrate material forming the substrate element) or mixed with the cast sheet material and the resulting mixture with the substrate element The substrate material can be formed. Based on the amount of glycerin required or desired, glycerin is applied to cut filler tobacco, for example as a casing for cutting (ie applied to individual strips of tobacco), as a top dressing, or both be able to. Such cut filler tobacco having a high glycerin content can be mixed with various cast sheets, reconstituted sheets, and / or tobacco beads, for example, as needed or desired, to form a substrate material for substrate element 85 Can be formed. In such instances of substrate element 85 having a high glycerin level, it may be desirable to include a wrap of substrate element 85 that minimizes or eliminates leaching of incorporated glycerin into outer packaging material 75.

  In yet another example, the selected tobacco-containing mixture can be characterized as a non-tobacco material. For example, cast sheets used to form substrate elements, substrate elements by extrusion, or substrate elements in the form of beads (malmerized) include calcium carbonate, rice flour, binders, diammonium phosphate, glycerin, flavorings, Tobacco-derived nicotine (TDN) and water can be included. More specifically, such a non-tobacco cast sheet is made of, for example, about 41.25% calcium carbonate, about 13.75% rice flour, about 6% ammonium alginate, about 5.5% wood pulp, It can be composed of about 3.5% diammonium phosphate and about 30% glycerin. In addition, tobacco-derived nicotine (TDN), certain acids (ie, levulinic acid and / or citric acid), and flavoring agents can be incorporated into glycerin. Extruded substrate elements, or substrate elements in the form of beads (malmerized), for example, about 51.94% calcium carbonate, about 17.15% rice flour, about 1% TDN, about 1% carboxymethylcellulose. (CMC), about 0.66% levulinic acid, about 0.44% lactic acid, about 20% glycerin, and about 9.41% flavoring. In some cases, cast sheets can be processed into chopped strips, chopped, or processed into cut filler forms. In other cases, if the substrate element 85 includes beads, the beads can be placed against the heat generating segment, adjacent to the heat generating segment, or closest to the heat generating segment. In these cases, selected components can be provided on the opposite side of the exothermic segment from the beads to secure the beads in place. For example, such selected components can include folded paper filter material or other non-tobacco paper plugs.

  In another example of a substrate element 85 formed of non-tobacco material, tobacco-derived nicotine (TDN), glycerin (ie, aerosol forming agent), and flavoring are used to extrude a relatively high porosity extruded ceramic substrate (ie, high To a porous extruded ceramic rod member). In such cases, the ceramic rod member defines one or more longitudinally extending channels (ie, open channels or slots disposed around the outer surface and / or a conduit extending through the central portion of the rod member). Can be pushed out. In a manner similar to the previously disclosed grooved rod member, the increase in surface area by the ceramic rod member (i.e., by the open channels around the surface) is achieved by the packaging disposed between the rod member and the outer wrapping material 75. This results in a reduction in the surface area of the contacting rod member, thus reducing the heat transferred to the outer packaging material 75 during use of the smoking article. An internal conduit can further provide additional surface area of the rod member that is heated by the heat generating segment to draw a portion of the heat from the outermost surface of the grooved ceramic rod member (ie, the outermost portion of the lobe). Can be helpful. In this way, visual scoring of the outer packaging material 75 can be reduced. Furthermore, the increased surface area of the grooved ceramic rod member compared to the solid cylindrical rod member can be further increased by additional conduits, but is incorporated into the base element 85 and exposed to heat from the heat generating segment 35. Providing an additional volume of aerosol forming material (ie, proportional to the surface area of the substrate element 85) and reducing the inhalation that the user needs to add to the smoking article. Therefore, such a smoking article can show an improvement in life as compared with a smoking article incorporating the solid cylindrical base element 85. In addition, open channels / conduits can reduce the resistance to inhalation.

  In some aspects of the present disclosure, the base element 85 may be segmented (ie, the base element 85 may include a plurality of components arranged in series or a plurality of components arranged in parallel. Or a combination of two or more substrate materials. For example, the substrate elements can comprise a combination of cast sheets and / or reconstituted sheets, each cut into chops or strips and mixed with cut filler tobacco treated with glycerin. Cut filler tobacco can have various levels of glycerin, for example, ranging from about 5% to about 25%. In another example, cast sheets cut into chops or strips can be mixed with tobacco-containing beads. In addition to extruded substrate elements wrapped with glass fiber mats, extruded substrate elements 85 may be wrapped with tobacco paper or a laminate comprising tobacco paper layers, where the substrate elements 85 are, for example, parallel. Cast sheets, extruded sheets, or re-rolled bundles of small diameter rod members that are placed, or processed in a similar manner to cut filler tobacco, or wound together to form a substantially cylindrical substrate element Consists of strips of tobacco sheets.

  In addition to the components disclosed herein, the base element 85 may be composed of many different combinations of such components. In certain embodiments, such components include, for example, a glass fiber mat coated with a TDN / glycerin (B3) solution, a porous ceramic element coated with an aerosol forming agent such as glycerin, a pectin free material. Non-tobacco such as cast sheet, non-ammonia cast sheet, non-tobacco cast sheet, gathered or shredded foil sheet coated with aerosol forming agent or strip formed therefrom, or gathered paper treated with an extract such as TDN It can also be further selected from the group consisting of products, beads, or gathered carbon or non-carbon paper.

  The components of the aerosol generating segment can vary. The aerosol-generating segment incorporates components that can evaporate, aerosolize, or be entrapped into air that is inhaled through the smoking article in use. Most preferably, these components provide sensory and sensory stimulating effects such as aroma, flavor, mouthfeel, visible aerosol sensation, individually or in combination. Examples of aerosol-generating segment components that are drawn into the smoker's mouth upon inhalation include water (eg, as water vapor), visible aerosol forming material (eg, glycerin), various volatile flavors (eg, vanillin or menthol) ), A volatile component of tobacco (for example, nicotine), and the like.

  Preferred aerosol forming materials produce a visible aerosol when sufficient heat is applied, or otherwise produce a visible aerosol by the action of the aerosol forming conditions provided by the components of the smoking article. Highly preferred aerosol forming materials produce visible aerosols that can be considered “smoky”. The preferred aerosol forming material is chemically simple compared to the smoke chemistry produced by burning tobacco. A preferred visible aerosol forming material is a polyol, and typical preferred aerosol forming materials include glycerin, propylene glycol, and mixtures thereof. If desired, the aerosol forming material can be combined with other liquid materials such as water. For example, the formulation of the aerosol-forming material can include a mixture of glycerin and water, or a mixture of propylene glycol and water. For example, Sensabaugh, Jr. U.S. Pat. No. 4,793,365 to Jakob et al., U.S. Pat. No. 5,018,839, and Crooks et al., U.S. Pat. See aerosol forming material.

  The materials that can be used to provide a substrate for the aerosol-forming material in the aerosol generating region can vary. Suitable substrate elements and associated aerosol forming materials are incorporated into the types of cigarettes marketed under the brand names “Premier”, “Eclipse”, “Steam Hot One”. The substrate element can include some form of tobacco, is typically composed primarily of tobacco, and can be provided by substantially any tobacco material. For example, in some embodiments, at least a portion of the entire substrate material is used in the form of an essentially traditional filler (eg, cut filler). Suitable substrate materials and substrate formulations, including aerosol forming materials (including cast sheet and paper type reconstituted tobacco materials), are described in Sensabaugh et al. US Pat. No. 4,793,365; White US Pat. No. 4,893,639. Clearman et al. US Pat. No. 5,099,861; Jakob et al. US Pat. No. 5,018,839; Gentry et al. US Pat. No. 5,105,836; Clearman et al. US Pat. No. 5,109,122; US Pat. No. 5,159,942; Clearman et al. US Pat. No. 5,203,355; Arzonico et al. US Pat. No. 5,271,419; Lekwawa et al. US Pat. No. 5,327,917; Casey, III et al. US Pat. No. 5,396,911; Young et al. US Pat. No. 5,533,530; Clearman US Pat. No. 5,588,446; Jakob et al. US Pat. No. 5,598,868; Young et al. US Pat. No. 5,715,844; US Pat. No. 6,378,528 to Beeson et al. And US Pat. No. 8678013 to Crooks et al .; US Patent Application Publication No. 2005/0066986 to Nestor et al .; US Patent Application Publication No. 2012/0067360 to Conner et al. And U.S. Patent Application Publication No. 2015/0157052 to Ademe et al. Further, the substrate material uses a form or configuration of the type described in US Pat. No. 8,839,799 to Conner et al., And techniques of the type generally described in US Pat. No. 4,807,809 to Pryor et al. As a gathered web or sheet, or in the form of a web or sheet that is shredded into a plurality of longitudinally extending strips using techniques of the type generally described in Raker U.S. Pat. No. 5,025,814, Can have.

  The method of contacting the aerosol forming material with the substrate material (eg, tobacco material) can vary. The aerosol-forming material can be applied to the formed tobacco materials or can be incorporated into tobacco materials that have been processed during the manufacture of those materials. The aerosol-forming material can be dissolved or dispersed in an aqueous liquid or other suitable solvent or liquid carrier and sprayed onto the substrate. See, for example, US Patent Application No. 2005/0066986 to Nestor et al. The amount of aerosol-forming material used relative to the dry weight of the substrate material can vary. Materials containing very high levels of aerosol forming material can be difficult to process into cigarette rods using conventional types of automated cigarette making equipment.

  Cast sheet type materials can include relatively high levels of aerosol forming materials. Reconstituted tobacco produced using a papermaking type process can contain moderate levels of aerosol-forming material. Tobacco strips and cut filler tobacco can contain a smaller amount of aerosol-forming material. Within the scope of this disclosure, various paper and non-materials including gathered, laminated, laminated metal / metallic, strips, beads such as alumina beads, open cell foams, foamed monoliths, air permeable matrices, and other materials. A paper substrate can be used. See, for example, Clearman, US Pat. No. 5,183,062; US Pat. No. 5,203,355; and US Pat. No. 5,588,446.

  Laminate paper or other packaging material can be made in accordance with the disclosure of Martin US Pat. No. 6,894,085 or by other suitable methods and / or materials.

  In some preferred smoking articles, both ends of the aerosol generating segment 61 are open to expose its substrate element 85. The heat generation segment 35 and the aerosol generation segment 61 cooperate to form an aerosol generation system 99. The aerosol generating segment is positioned adjacent the downstream end of the exothermic segment, and the segments are axially aligned with respect to each other. The segments are arranged in a slightly spaced relationship that may abut each other or may include an optional buffer region 110 (which in some cases may include a thermally conductive multi-porous spacer element). You can. When viewed transverse to the longitudinal axis of the smoking article 10, the outer cross-sectional shape and dimensions of these segments may be essentially identical to one another. The physical arrangement of these components is preferably from the heat source 40 to the adjacent substrate element 85 (eg, conductive and convective) over the entire operating (eg, burning) time of the heat source during use of the smoking article 10. The arrangement is such that heat is transferred (by a mechanism that includes heat transfer).

  The buffer region 110 can reduce scorching or other thermal degradation that may occur in a portion of the aerosol generating segment 61. The buffer region can include primarily empty air space, or partially or substantially completely with a non-combustible material such as, for example, a metal, organic, inorganic, ceramic, or polymeric material, or any combination thereof. May be satisfied. The buffer region may be about 1 mm to about 10 mm or more thick (length), but in many cases is about 2 mm to about 5 mm thick (length). If desired, the buffer region or spacer segment 110 can include a catalytic material, such as a material that includes cerium or copper ions or oxides and / or salts of cerium and copper ions. See, for example, US Pat. No. 8469035 to Banerjee et al. And US Pat. No. 8617263 to Banerjee et al. And US Patent Application Publication No. 2007/0215168 to Banerjee et al.

  The components of the aerosol generation system 99 are preferably attached to each other and secured in place using an overlap material 118. For example, the overlap material can include a paper wrapping or laminated paper type material that surrounds the downstream portion of the heat generating segment 35 and at least a portion of the longitudinally extending outer surface of the aerosol generating segment 61. The inner surface of the overlap material 118 can be secured to the outer surface of the component surrounded by the overlap material 118 with a suitable adhesive. In this way, aspects disclosed herein directed to reducing, minimizing, or eliminating scoring or charring of the outer wrapping material 75 or wrapping paper 90 cause the overlap material 118 to overlap the outer wrapping material 75; Alternatively, those skilled in the art will appreciate that this may also apply to the overlap material 118 as long as it extends over the interface between the exothermic segment 35 and the aerosol generating segment 61.

  The smoking article 10 preferably includes a suitable mouthpiece such as, for example, a filter element 135 disposed at the mouth end 18 of the smoking article 10. The filter element 135 is preferably positioned at one end of the aerosol generation system 99 without the filter element 135 and the aerosol generating segment 99 being axially aligned in an end-to-end relationship, abutting each other, and having no barrier between them. Be placed. Preferably, the overall cross-sectional shape and dimensions of these segments 99, 135 are essentially identical to each other when viewed transverse to the longitudinal axis of the smoking article. The filter element 135 can include a filter material 140 that is encased by a surrounding plug wrap material 142 along its longitudinally extending surface. In one example, the filter material 140 comprises plasticized cellulose acetate tow, or other suitable cigarette type filter material. Both ends of the filter element 135 are preferably open to allow the passage of aerosol. In some cases, filter element 135 may be configured to include any combination of paper plugs, voids, and conventional cigarette filter material (ie, cellulose acetate tow) as needed or desired. it can.

  Further, the filter element comprises a millable flavor capsule of the type described in Thomas et al. US Pat. No. 7,479,098, Dube et al. US Pat. No. 7,793,665, and Ademe et al. US Pat. No. 8,186,359. May be included.

  The aerosol generation system 99 is preferably attached to the filter element 135 using a tipping material 150. Examples of chipping materials include, for example, Dube et al. US Pat. No. 7,789,089, Crooks et al. US Pat. Appl. Pub. No. 2007/0215167, Joyce et al. US Pat. Appl. Pub. No. 2010/0108081, Norman. U.S. Patent Application Publication No. 2010/0108084, and Ademe et al., US Patent Application Publication No. 2013/0167849, and Dittrich et al., International Publication No. 2013/160671.

  The smoking article 10 may include air dilution provisions such as a series of perforations 160 that may each extend through the filter element chipping material 150 and the plug wrap material 142. Alternatively, the various perforations can extend around the smoking article as a ring in a region upstream from the illustrated region.

  A typical smoking article 10 has a length between about 80 mm and about 100 mm. For example, for a smoking article 10 having a length of about 85 mm, an exemplary exothermic segment 35 can have a length between about 10 mm and about 15 mm, and an exemplary aerosol generating segment 61 is about 40 mm. A typical filter element 135 can have a length between about 20 mm and about 30 mm.

  The cigarette described with reference to FIG. Cigarettes sold under the brands “Premier” and “Eclipse” by Reynolds Tobacco Company and Japan Tobacco Inc. Can be used in much the same way as cigarettes marketed under the brand “Steam Hot One”. That is, the fuel element or heat source is ignited using a match or cigarette lighter. The fuel element / heat source burned by such ignition generates heat that is transferred to the substrate element in the aerosol generating region of the cigarette. The substrate element, including the aerosol forming material, and the tobacco flavors and ingredients are heated to volatilize to form an aerosol. This aerosol is carried in the inhaled air and is drawn through the filter element into the smoker's mouth.

  FIG. 2 illustrates another exemplary smoking article 10 in the form of a cigarette according to another aspect of the present disclosure. Preferably, the smoking article 10 has the overall size, shape, and overall appearance of the smoking article described above with reference to FIG. 1 and includes those types of components. However, compared to the embodiment of FIG. 1, the length of the filter segment 135 has been increased and the length of the aerosol generating segment 61 has been reduced. For example, in the illustrated embodiment, the filter element 135 is a two-part segment comprising a distal tip segment 182 and a tubular segment 184 disposed between the aerosol generating segment and the distal tip segment. Have. Thus, the representative smoking article of FIG. 2 is a four-segment smoking article, while the representative smoking article of FIG. 1 is a three-segment smoking article.

  The tubular segment 184 is typically comprised of a vapor bonded plasticized cellulose acetate tube that provides resilience, structure, and length to the smoking article while allowing the passage of inhaled air. Alternatively, the tubular segment is comprised of a heat resistant plastic material (eg, a tube made of polycarbonate) or a ceramic material.

  A representative smoking article 10 of the type shown in FIG. 2 has a length between about 80 mm and about 100 mm. For example, for a smoking article 10 having a length of about 85 mm, an exemplary exothermic segment 35 can have a length between about 10 mm to about 15 mm, and an exemplary aerosol generating segment 61 is about 10 mm. A typical tubular segment 184 can have a length between about 30 mm to about 50 mm, and a typical filter element 135 can have a length between about 20 mm to about 25 mm. It can have a length between 30 mm.

  FIG. 3 shows another exemplary smoking article 10 in the form of a cigarette. Preferably, the smoking article 10 has the overall size, shape, and overall appearance of the smoking article described above with reference to FIG. 2 and includes those types of components. However, a tobacco segment 198 of cut filler tobacco 200 wrapped in wrapping paper 205 is disposed between aerosol generation system 99 and filter element 135. Compared to the embodiment of FIG. 2, the overall length of the two-part filter segment is reduced to accommodate a segment composed of cut filler tobacco. Thus, the representative smoking article of FIG. 3 is a five-segment smoking article, while the representative smoking article of FIG. 2 is a four-segment smoking article.

  The upstream segment of the two-part filter segment 135 includes a hardened tube made of cellulose acetate tow, a segment of cellulose acetate tow in which individual particles of activated carbon particles are dispersed, and a breakable flavor-containing capsule. It can be composed of arranged cellulose acetate segments, and the like. Typically, the downstream segment of the two-part filter segment 135 is a segment composed of plasticized cellulose acetate tow or a gathered polypropylene web. If desired, the two-part filter segment can be replaced with a single-segment filter element or a three-part cavity filter.

  A representative smoking article 10 of the type shown in FIG. 3 has a length between about 80 mm and about 100 mm. For example, for a smoking article 10 having a length of about 85 mm, an exemplary exothermic segment 35 can have a length between about 10 mm to about 15 mm, and an exemplary aerosol generating segment 61 is about 10 mm. A typical tobacco filler segment 198 can have a length between about 30 mm and about 50 mm, and a typical filter element 135 can have a length between about 20 mm and about 25 mm. It can have an overall length between about 30 mm. For the exemplary filter element of the illustrated embodiment, the upstream filter element segment 220 can have a length between about 5 mm and about 20 mm, and the downstream filter element segment 225 can be about 5 mm to about 20 mm. Can have a length between. For example, a representative smoking article having an overall length of about 83 mm includes a heat generating segment 35 having a length of about 12 mm, an aerosol generating segment 61 having a length of about 13 mm, a tobacco filler segment 198 having a length of about 37 mm, There can be a cellulose acetate tube filter segment 220 having a length of about 7 mm and a low efficiency plasticized cellulose acetate tow segment 225 having a length of about 14 mm.

  Typical smoking articles also include various components related to their configuration. For example, these types of components include packaging materials, heat transfer materials, metal foils and foil laminates, mouth end pieces, filter elements, plug wraps, chipping materials, and adhesives. Further, typical smoking articles can include any of a wide variety of tobacco types, tobacco forms, and blends thereof. For example, representative types described and referenced in US Pat. No. 5,724,997 to Fagg et al., US Pat. No. 8678013 to Crooks et al., And US Patent Application Publication No. 2015/0157052 to Ademe et al. Please refer to the components.

  Various combinations and variants of flavoring agents (including various materials that alter the sensation and / or sensory properties or properties of the mainstream aerosol of smoking articles) can be incorporated into suitable smoking articles. The base material of the smoking article and the various tobacco components can be treated with tobacco additives of the type traditionally used in the manufacture of cigarettes such as casing and / or top dressing components. See, for example, ingredients of the type described in Crooks et al. US Pat. No. 8678013.

  Methods and methods for assembling representative types of smoking articles are described in Barnes et al. US Pat. No. 5,469,871 and Crooks et al. US Pat. No. 8678013, and Stone et al. US Patent Application Publication No. 2012/0042885. US Patent Application Publication No. 2012/0067360 to Conner et al., US Patent Application Publication No. 2014/0261470 to Amiss et al., And US Patent Application Publication No. 2015/0157052 to Ademe et al. Have been described.

  In light of the possible interrelationships between aspects of the present disclosure in providing the benefits and advantages described above relating to aspects of the present disclosure, the present disclosure particularly clarifies embodiments that exhibit various combinations of the disclosed aspects. Including, but not limited to. This disclosure may be any combination of two, three, four or more features or components described in this disclosure, such features or components being described in the description of specific embodiments herein. Includes whether or not explicitly combined or otherwise described. The present disclosure is intended to be understood in its entirety, and therefore, unless otherwise apparent from the context of the present disclosure, any separable feature or component of the present disclosure will not be limited to its embodiments and implementations. Any of the forms should be considered as intended, ie, combinable.

  The aerosol produced by the cigarette of the present disclosure is an aerosol containing air-containing components such as vapor, gas, suspended particles, and the like. Aerosol components from burning some form of tobacco (and other optional ingredients that burn and generate heat), heat the tobacco and carbonize the tobacco (or otherwise smolder some form of tobacco) Can be produced by the thermal decomposition of tobacco caused by the evaporation of the aerosol-forming agent. Thus, aerosols can include aerosols described as volatile components, combustion products (eg, carbon dioxide and water), incomplete combustion products, and pyrolysis products, and other smoke.

  Substances located in a heat exchange relationship with the burning tobacco material and the other components to burn the heat from the combustion of the aerosol component to some form of tobacco (and optionally other components that burn to generate heat) It can also be generated by acting on. Further, the aerosol component can also be generated by the aerosol generating system as a result of the action of the exothermic segment on the aerosol generating segment. In some embodiments, the components of the aerosol generating segment tend not to undergo a significant degree of thermal degradation under normal use conditions (e.g., as a result of combustion, smoldering, or pyrolysis). Having an overall composition and placement in a smoking article.

  Those skilled in the art to which the present disclosure relates will contemplate numerous modifications and other aspects of the disclosure described herein, with the benefit of the teachings presented in the foregoing description and the associated drawings. . For example, those skilled in the art can combine the features described in the different embodiments herein with each other and / or without departing from the scope of the claims presented herein. It will be understood that embodiments not expressly set forth herein may be implemented within the scope of this disclosure, such as may be combined with techniques known in the art or developed in the future. In some such embodiments, for example, an embossed overlap material (ie, made of paper) is used as an additional layer over the outer packaging material (ie, cigarette paper), etc. Alternative means can be implemented to reduce, minimize, or eliminate scorching, charring, or discoloration. In such cases, the embossing provides an increase in surface area and / or the embossed overlap material is located at least partially away from the outer wrapping material, thereby cooling the overlap material with ambient air. (That is, it can function as a cooling fin). In still other examples, various means can be implemented to provide a visual cue for overheating or too high temperatures. For example, the embossed overlap material and / or outer packaging material may visually appear or change over a temperature threshold or in a specific temperature range and / or below the temperature threshold or a specific temperature. Printing can be performed with thermochromic ink that disappears in the range. In this way, for example, a smoking article that is in a temperature condition that is too high may be used until the indicia appearance caused by the thermochromic ink changes to indicate that the smoking article is at a suitable temperature. The user can be instructed not to use such means to prevent the use of the outer packaging material or other components subjected to heat generated by the heat generating segment at too high a temperature that could lead to scorching or charring. can do. In still other examples, the non-woven graphite or graphene sheet as the heat conducting element, or the non-woven graphite or graphene sheet that otherwise carries away excess heat from the outer wrapping paper 75 is the outer wrapping material 75 or wrapping paper. / Material 90 or may be combined with outer wrapping material 75 or wrapping paper / material 90. That is, the non-woven graphite or graphene sheet can wrap around the portion of the heat generating portion and the portion of the aerosol generating portion inside the outer packaging material and extend toward the mouth end portion.

  Accordingly, the present disclosure is not intended to be limited to the particular aspects disclosed, but equivalents, modifications, and other aspects are intended to be included within the scope of the appended claims. That should be understood. Although specific terms are used herein, they are used in a general and descriptive sense only and not for purposes of limitation. Although aspects of this disclosure are more fully described herein by way of examples, these examples are set forth to illustrate specific aspects of this disclosure, and the techniques of this disclosure It should not be construed as limiting the scope. Unless otherwise specified, all percentages and percentages are by weight.

Claims (33)

An elongated smoking article having an ignition end and an opposite mouth end, the smoking article comprising:
A mouth end portion disposed at the mouth end, and
A heat generating part arranged near the ignition end;
An outer wrapping material wrapped around at least the heat generating portion and extending toward the mouth end portion so as to define a cylindrical rod;
An aerosol generating portion disposed within the outer packaging material and between the heat generating portion and the mouth end portion and configured to generate an aerosol in response to heat received from the heat generating portion;
The aerosol generating portion and the heat generating portion are further configured to cooperate to distribute heat received by the aerosol generating portion from the heat generating portion to prevent scorching of the outer packaging material.
Smoking goods.   The aerosol generating portion comprises a rod member having a length and a maximum diameter, wherein the rod member is greater than the surface area of a right cylinder having a length and maximum diameter equal to the length and maximum diameter of the rod member, respectively. The smoking article of claim 1 having a large surface area.   The smoking article of claim 1, wherein the aerosol generating portion comprises a grooved rod member.   The smoking article of claim 3, wherein the grooved rod member defines a channel extending longitudinally through the grooved rod member.   4. The smoking article of claim 3, wherein the grooved rod member is extruded from a mixture comprising ground tobacco, calcium carbonate, binder, glycerin, water, and flavoring.   The smoking article of claim 1, wherein the aerosol generating portion comprises an aerosol generating element encased by a packaging material, the packaging material being located between the aerosol generating element and the outer packaging material.   Packaging material is paper-foil sheet laminate, paper-foil-paper sheet laminate, paper-foil-tobacco sheet laminate, non-woven graphite sheet, graphene sheet, graphene-foil sheet laminate, graphene-foil-paper sheet Laminate, paper-graphene sheet laminate, graphene ink imprinted on paper sheet, graphene ink imprinted on foil sheet, carbon nanotube engaged with paper sheet or foil sheet, paper sheet or foil sheet The smoking article of claim 6 selected from the group consisting of engaged fullerenes and graphene engaged with paper or foil sheets.   The smoking article according to claim 7, wherein the graphene ink is imprinted on the paper sheet or foil sheet according to a continuous pattern or a discontinuous pattern.   8. The smoking article of claim 7, wherein the paper sheet comprises a tobacco wrapping paper sheet, and the tobacco sheet comprises an extruded tobacco sheet, a cast tobacco sheet, or a reconstituted tobacco sheet.   8. A smoking article according to claim 7, wherein the foil sheet comprises a continuous foil sheet or individual foil strips.   The smoking article of claim 1 further comprising a tobacco portion disposed inside the outer packaging material and between the heat generating portion and the aerosol generating portion.   The smoking article of claim 1, further comprising a tobacco portion disposed inside the outer packaging material and between the aerosol generating portion and the mouth end portion.   A non-woven graphite sheet or a non-woven composite sheet of graphite and graphene wrapped around a portion of the heat generating portion and a portion of the aerosol generating portion inside the outer packaging material and extending toward the mouth end portion The smoking article according to claim 1 provided.   The smoking article of claim 13, wherein the nonwoven graphite sheet is laminated with an outer packaging material.   Further comprising a metal foil sheet laminated with an outer packaging material therebetween with an adhesive material, the adhesive material including a portion of aluminum hydroxide, the metal foil sheet surrounding the heat generating portion inside the outer packaging material And the smoking article of claim 1 wound around a portion of the aerosol generating portion and extending toward the mouth end portion.   The smoking article of claim 1, wherein the outer packaging material comprises a portion of aluminum hydroxide, a portion of magnesium hydroxide, or a portion of calcium carbonate.   The smoking article of claim 1, further comprising a glass fiber sheet that wraps around the heat generating portion and a portion of the aerosol generating portion inside the outer packaging material and extends toward the mouth end portion.   A heat-conducting material engaged with the outer packaging material, wherein the heat-conducting material is arranged inside the outer packaging material and at least partially wraps around the heat-generating part in the radial direction and from the heat-generating part in the longitudinal direction The smoking article according to claim 1, which extends to wrap up to the aerosol generating part.   Selection of conductive ink with thermally conductive material imprinted on outer packaging material, metal layer deposited on selected portions of outer packaging material, graphene engaged with outer packaging material, or selection of outer packaging material The smoking article of claim 18, comprising a carbon material engaged with the formed portion.   Cast sheet of tobacco material in the form of cut filler, sheet of reconstituted tobacco material in the form of cut filler, cut filler tobacco material treated with glycerin, aerosol forming beads, ceramic material containing glycerin, cut filler Cast sheet of non-tobacco material in the form of, a glass fiber mat containing tobacco-derived nicotine material, a foil sheet coated with an aerosol-forming material, a gathered paper containing tobacco-derived nicotine material, a non-tobacco material containing tobacco-derived nicotine material, and The smoking article according to claim 1, which is made of a material selected from the group consisting of these combinations.   21. The smoking article of claim 20, wherein the cut filler tobacco material treated with glycerin comprises between about 5% to about 25% glycerin.   21. The aerosol generating portion includes a first portion and a second portion, wherein the first portion and the second portion are continuously disposed between the heat generating portion and the mouth end portion. Smoking article as described in.   21. The aerosol generating portion includes a first portion and a second portion, wherein the first portion of the aerosol generating portion is composed of a different material than the second portion of the aerosol generating portion. Smoking goods.   21. The smoking of claim 20, wherein the aerosol generating portion comprises a first portion and a second portion, the first and second portions being combined to form a single aerosol generating element. Goods.   The smoking article of claim 1, wherein the aerosol generating portion comprises a porous ceramic rod member defining at least one conduit, wherein the at least one conduit extends longitudinally through the porous ceramic rod member. Goods.   26. The smoking article of claim 25, wherein the porous ceramic rod member comprises an aerosol former, flavoring agent, or tobacco extract engaged with the porous ceramic rod member.   27. The smoking article of claim 26, wherein the aerosol former comprises glycerin and tobacco extract, and the tobacco extract comprises tobacco derived nicotine.   26. The smoking article of claim 25, wherein the porous ceramic rod member defines a plurality of longitudinally extending open channels arranged at an angle around the outer surface of the porous ceramic rod member.   The smoking of claim 1, wherein the aerosol generating portion comprises an aerosol-forming bead disposed continuously with respect to the exothermic portion and includes a non-tobacco plug member disposed between the bead and the mouth end portion. Goods.   The smoking article of claim 1, wherein the aerosol generating portion comprises a plurality of rod members extending parallel to each other, the rod members being composed of tobacco material, non-tobacco material, or ceramic material.   The exothermic portion includes a heating element comprising a carbonized or pyrolytic material comprising a combustible material selected from the group consisting of carbon, cotton linters, glass microspheres, catalysts, and combinations thereof. Smoking article as described in.   An overlap material wrapped around at least the outer packaging material wrapped around at least the heat generating portion, the overlap material being embossed at least partially away from the outer packaging material. 1. The smoking article according to 1.   Further comprising a thermochromic ink material interacted with the outer packaging material, wherein the thermochromic ink is configured to provide a visual indication in response to the outer packaging material exceeding the temperature threshold. The smoking article according to claim 1.

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