JP7434566B2 - Articles for use in aerosol delivery systems - Google Patents

Description

The present disclosure relates to articles for use in nonflammable aerosol delivery systems, nonflammable aerosol delivery systems including the articles, and methods of making articles for use in nonflammable aerosol delivery systems.

Certain tobacco industry products generate aerosols during use that are inhaled by the user. For example, tobacco heating devices heat an aerosol-generating substrate, such as tobacco, and form an aerosol through non-combustion heating of the substrate. Such tobacco industry products generally include a mouthpiece through which the aerosol passes to reach the user's mouth.

According to an embodiment of the invention, in a first aspect, an article is provided for use in a non-flammable aerosol delivery system, the article comprising: a first aerosol-generating material; a component comprising a tubular portion, the tubular portion comprising a wall containing a second aerosol-generating material.

According to an embodiment of the invention, in a second aspect, an article for use in a non-flammable aerosol delivery system is provided, the article comprising: a first aerosol-generating material; and a component comprising a body of material, the body of material comprising a second aerosol-generating material.

According to an embodiment of the invention, in a third aspect, there is provided a method of forming an article according to the first aspect, the method comprising applying an aerosol-generating material to the wall of the tubular portion.

According to an embodiment of the invention, in a fourth aspect, there is provided a method of forming an article according to the second aspect, the method comprising applying an aerosol-generating material to a body of material.

According to a further embodiment of the invention there is provided a non-flammable aerosol delivery system comprising an article according to the first or second aspect above and a non-flammable aerosol delivery device.

Embodiments of the invention will now be described, by way of example only, with reference to the accompanying drawings, in which: FIG.

1 is a side cross-sectional view of an article for use with a non-flammable aerosol delivery device including a mouthpiece including a tubular portion; FIG. 1 is a side cross-sectional view of an article for use with a non-flammable aerosol delivery device, in this example a mouthpiece including a hollow tubular element; FIG. 1 is a side cross-sectional view of an article for use with a non-flammable aerosol delivery device, in this example a mouthpiece including a capsule-containing mouthpiece; FIG. Figure 3a is a cross-sectional view of the capsule containing mouthpiece shown in Figure 3a; Figure 3 is a perspective view of a non-flammable aerosol delivery device suitable for generating an aerosol from the aerosol-generating material of the article of Figures 1, 2, 3a and 3b; Figure 5 shows the device of Figure 4 with the outer cover removed and no articles present; FIG. 5 is a partially cross-sectional side view of the device of FIG. 4; Figure 5 is an exploded view of the device of Figure 4 with the outer cover omitted; 5 is a cross-sectional view of a portion of the device of FIG. 4; FIG. 8B is an enlarged view of the area of the device of FIG. 8A; FIG. 1 is a flowchart illustrating a method of manufacturing an article for use with a non-flammable aerosol delivery device.

[Detailed explanation]
As used herein, the term "delivery system" is intended to encompass systems that deliver at least one substance to a user, including:
Combustible aerosol delivery systems such as tobacco for cigarettes, cigarillos, cigars, and pipes or for hand-rolled or homemade cigarettes (based on tobacco, tobacco derivatives, puffed tobacco, recycled tobacco, tobacco substitutes, or other smoking materials) regardless of what)
Nonflammable aerosol delivery systems that release compounds from aerosol-generating materials without combusting the aerosol-generating materials, such as electronic cigarettes, tobacco heating products, and blending systems for generating aerosols using combinations of aerosol-generating materials; delivering at least one substance to a user orally, nasally, transdermally, or otherwise without forming an aerosol, whether or not the at least one substance contains nicotine; Included are non-aerosol delivery systems, including, but not limited to, oral products such as lozenges, gums, patches, articles containing inhalable powders, and oral cigarettes, including snus or moist snuff.

According to the present disclosure, a "flammable" aerosol delivery system is one in which the aerosol-generating components (or components thereof) of the aerosol delivery system are combusted during use to facilitate delivery of at least one substance to the user. It is a system that is burned or burned.

In some embodiments, the delivery system is a flammable aerosol delivery system, such as a system selected from the group consisting of cigarettes, cigarillos, and cigars.

In some embodiments, the present disclosure describes the use of filters, filter rods, filter segments, tobacco rods, spills, aerosol modifier release components such as capsules, threads or beads, or plug wrap, tipping paper, or cigarette paper. Relating to components for use in flammable aerosol delivery systems, such as paper.

According to the present disclosure, a "non-flammable" aerosol delivery system is one in which the aerosol-generating components (or components thereof) of the aerosol delivery system are not combustible or combustible to facilitate delivery of at least one substance to a user. It is a system that cannot be improved.

In some embodiments, the delivery system is a non-flammable aerosol delivery system, such as a powered non-flammable aerosol delivery system.

In some embodiments, the non-flammable aerosol delivery system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although the presence of nicotine within the aerosol-generating material is not a requirement. Please note that.

In some embodiments, the non-flammable aerosol delivery system is an aerosol-generating material heating system, also known as a non-flammable heated system. An example of such a system is a tobacco heating system.

In some embodiments, the nonflammable aerosol delivery system is a mixing system that uses a combination of aerosol-generating materials to generate an aerosol, and one or more of the aerosol-generating materials can be heated. Each of the aerosol-generating materials can be in solid, liquid, or gel form, for example, and may or may not contain nicotine. In some embodiments, the mixing system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. Solid aerosol-generating materials can include, for example, tobacco or non-tobacco products.

Typically, a non-flammable aerosol delivery system may include a non-flammable aerosol delivery device and consumables for use with the non-flammable aerosol delivery device.

In some embodiments, the present disclosure relates to consumables comprising aerosol-generating materials configured for use with non-flammable aerosol delivery devices. These consumables may also be referred to as articles throughout this disclosure.

In some embodiments, a non-flammable aerosol delivery system, such as a non-flammable aerosol delivery device, can include a power source and a controller. The power source can be, for example, a power source or a heat generating source. In some embodiments, the heat source comprises a carbon matrix that can be energized to dissipate power in the form of heat to an aerosol generating material or heat transfer material in the vicinity of the heat source.

In some embodiments, a non-flammable aerosol delivery system can include an area for receiving consumables, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter, and/or an aerosol modifier.

In some embodiments, consumables for use with a nonflammable aerosol delivery device include an aerosol-generating material, an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol generator, an aerosol-generating area, a housing, a web, Filters, mouthpieces, and/or aerosol modifiers may be included.

In some embodiments, the substance to be delivered includes an active substance.

As used herein, an active substance can be a bioactive material, ie a material intended to achieve or promote a physiological response. The active substance can be selected, for example, from functional foods, nootropics, psychotropic drugs. Active substances can occur naturally or can be obtained synthetically. The active agent can include, for example, nicotine, caffeine, taurine, thein, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or components, derivatives, or combinations thereof. The active substance can include one or more components, derivatives, or extracts of tobacco extract, cannabis, or another botanical substance.

In some embodiments, the active agent includes nicotine. In some embodiments, the active agent includes caffeine, melatonin, or vitamin B12.

An aerosol-generating material is a material that is capable of generating an aerosol when heated, irradiated, or energized in any other way, for example. The aerosol-generating material can be in solid, liquid, or gel form, for example, and may or may not contain active substances and/or flavorants. In some embodiments, the aerosol-generating material can include an "amorphous solid," which can alternatively be referred to as a "monolithic solid" (ie, non-fibrous). In some embodiments, the amorphous solid can be a dry gel. Amorphous solids are solid materials that can hold fluids, such as liquids, within them. In some embodiments, the aerosol-generating material comprises, for example, from about 50%, 60%, or 70% by weight of amorphous solids to about 90%, 95%, or 100% by weight of amorphous solids. % can be included.

In certain embodiments, the aerosol-generating material includes a gelling agent that includes a cellulosic gelling agent and/or a non-cellulosic gelling agent, an active agent, and an acid.

The gelling agent can include one or more compounds selected from cellulosic gelling agents, non-cellulosic gelling agents, guar gum, gum acacia, and mixtures thereof.

In some embodiments, the gelling agent includes a hydrocolloid. In some embodiments, the gelling agent is selected from the group including alginic acid, pectin, starch (and derivatives), cellulose (and derivatives), gum, silica or silicone compounds, clay, polyvinyl alcohol, and combinations thereof. Contains one or more compounds. For example, in some embodiments, the gelling agents include alginic acid, pectin, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, pullulan, xanthan gum, guar gum, carrageenan, agarose, gum acacia, fumed silica, polydimethylsiloxane (PDMS). ), sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the gelling agent includes alginic acid and/or pectin and can be combined with a hardening agent (such as a calcium source) during the formation of the amorphous solid. In some cases, the amorphous solid can include calcium crosslinked alginate and/or calcium crosslinked pectin.

In some embodiments, the cellulosic gelling agent is hydroxymethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose (CMC), hydroxypropylmethylcellulose (HPMC), methylcellulose, ethylcellulose, cellulose acetate (CA), cellulose acetate butyrate. (CAB), acetylpropionylcellulose (CAP), and combinations thereof.

In some embodiments, the gelling agent comprises one or more of hydroxyethylcellulose, hydroxypropylcellulose, hydroxypropylmethylcellulose (HPMC), carboxymethylcellulose, guar gum, or acacia gum (or such gelling agent). agent).

In some embodiments, the gelling agent is one including, but not limited to, agar, xanthan gum, gum arabic, guar gum, locust bean gum, pectin, carrageenan, starch, alginic acid, and combinations thereof. or comprises (or is) a plurality of non-cellulosic gelling agents. In preferred embodiments, the non-cellulosic gelling agent is alginic acid or agar.

The aerosol generating material can include an acid. The acid can be an organic acid. In some of these embodiments, the acid can be at least one of a monoacid, a dibasic acid, and a tribasic acid. In some such embodiments, the acid can contain at least one carboxyl functionality. In some such embodiments, the acid can be at least one of an alpha-hydroxy acid, a carboxylic acid, a dicarboxylic acid, a tricarboxylic acid, and a keto acid. In some such embodiments, the acid can be an alpha-keto acid.

In some such embodiments, the acids include succinic acid, lactic acid, benzoic acid, citric acid, tartaric acid, fumaric acid, levulinic acid, acetic acid, malic acid, formic acid, sorbic acid, benzoic acid, propionic acid, and pyruvic acid. It can be at least one of acids.

Preferably, the acid is lactic acid. In other embodiments, the acid is benzoic acid. In other embodiments, the acid can be an inorganic acid. In some of these embodiments, the acid can be a mineral acid. In some such embodiments, the acid can be at least one of sulfuric acid, hydrochloric acid, boric acid, and phosphoric acid. In some embodiments, the acid is levulinic acid.

In embodiments where the aerosol-generating material includes nicotine, it is particularly preferred to include an acid. In such embodiments, the presence of acid can stabilize dissolved species in the slurry from which the aerosol-generating material is formed. The presence of acid can reduce or substantially prevent nicotine evaporation during drying of the slurry, thereby reducing nicotine losses during manufacturing.

In some embodiments, the aerosol-generating material includes cannabidiol (CBD), tetrahydrocannabinol (THC), tetrahydrocannabinolic acid (THCA), cannabidiolic acid (CBDA), cannabinol (CBN), cannabigerol ( CBG), cannabichromene (CBC), cannabicyclol (CBL), cannabivarin (CBV), tetrahydrocannabivarin (THCV), cannabidivarin (CBDV), cannabicrovarin (CBCV), cannabigerovarin (CBGV), Cannabigerol monomethyl ether (CBGM), and one or more cannabinoid compounds selected from the group consisting of cannabiersoin (CBE), cannabicitrane (CBT).

The aerosol-generating material can include one or more cannabinoid compounds selected from the group consisting of cannabidiol (CBD) and THC (tetrahydrocannabinol).

The aerosol generating material can include cannabidiol (CBD).

The aerosol generating material can include nicotine and cannabidiol (CBD).

Aerosol generating materials can include nicotine, cannabidiol (CBD), and THC (tetrahydrocannabinol).

In some embodiments, the amorphous solid includes 1-60% by weight gelling agent, 0.1-50% by weight aerosol-forming agent, 0.1-80% by weight fragrance, and is calculated based on dry weight.

In some further embodiments, the amorphous solid comprises 1-50% by weight gelling agent, 0.1-50% by weight aerosol-forming agent, and 30-60% by weight fragrance. is calculated based on dry weight.

In some further embodiments, the amorphous solid comprises an aerosol-forming material in an amount of about 40-80% by weight of the amorphous solid, and a gelling agent and an optional filler (i.e., in some examples filler is present in the amorphous solid, and in other instances, no filler is present in the amorphous solid), and the combined amount of gelling agent and filler is about 10% to 10% of the amorphous solid. 60% by weight (i.e., the gelling agent and filler together account for about 10-60% by weight of the amorphous solid), and optionally the amorphous solid comprises up to about 60% by weight of the amorphous solid. It contains an amount of active substance and/or flavoring agent of 20% by weight (ie the amorphous solid contains up to 20% by weight of active substance).

Amorphous solid materials can be formed from dry gels. Using the proportions of components discussed above means that once the gel hardens, the fragrance compounds are stabilized within the gel matrix, making it possible to achieve greater fragrance loading than in non-gel compositions. It turns out that it does. Fragrances (e.g. menthol) are stable at high concentrations and the product has a good shelf life.

In some cases, the amorphous solid can have a thickness of about 0.015 mm to about 1.5 mm. Suitably, the thickness may range from about 0.05 mm, 0.1 mm, or 0.15 mm to about 0.5 mm, 0.3 mm, or 1 mm. The inventors have found that in some embodiments a material with a thickness of 0.2 mm is particularly suitable. Amorphous solids can include two or more layers, and the thicknesses described herein refer to the total thickness of those layers.

If the amorphous solid is too thick, heating efficiency will be compromised. This has a negative impact on power consumption during use. Conversely, if the amorphous solid is too thin, it becomes difficult to manufacture and handle; very thin materials are more difficult to cast and can be fragile, impairing aerosol formation during use.

The amorphous solid can be about 1%, 5%, 10%, 15%, 20%, 25%, 30%, or 35% to about 60%, 55%, 50% by weight. %, 45%, 40% or 35% by weight of gelling agent (all calculated on dry weight). For example, the amorphous solid may be 1 to 60% by weight, 5 to 60% by weight, 20 to 60% by weight, 25 to 55% by weight, 30 to 50% by weight, 35 to 45% by weight, 5 to 45% by weight, It can contain 10-40% by weight, or 20-35% by weight of gelling agent.

In some embodiments, the amorphous solid comprises alginic acid and pectin, and the ratio of alginic acid to pectin is from 1:1 to 10:1. The ratio of alginic acid to pectin is typically greater than 1:1, ie, alginic acid is present in an amount greater than the amount of pectin. In examples, the ratio of alginic acid to pectin is about 2:1 to 8:1, or about 3:1 to 6:1, or about 4:1.

In some embodiments, the amorphous solid includes filler in an amount of 1-30%, such as 5-25%, or 10-20%, by weight of the amorphous solid. In examples, the amorphous solid includes filler in an amount greater than 1%, 5%, or 8% by weight of the amorphous solid. In examples, the amorphous solid comprises an amount of less than 40%, 30%, 20%, 15%, 12%, 10%, 5%, or 1% by weight of the amorphous solid. Contains fillers. In other examples, the amorphous solid is free of filler.

In examples, the amorphous solids may collectively be about 10%, 20%, 25%, 30%, 35%, 40%, 45%, 50%, 55%, or about Contains gelling agents and fillers in amounts from 60% by weight. In examples, the amount of gelling agent and filler together is less than or equal to 85%, 80%, 75%, 70%, 65%, or 60% by weight of the amorphous solid. In examples, the amorphous solid includes a gelling agent and a filler in an amount of about 20-60%, 25-55%, 30-50%, or 35-45% by weight of the amorphous solid. including.

The fillers, if present, include one or more inorganic filler materials such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and suitable inorganic adsorbents, such as molecular sieves. can be included. Fillers can include one or more organic filler materials such as wood pulp, cellulose, and cellulose derivatives. In certain cases, amorphous solids do not include calcium carbonate, such as chalk.

In some examples that include fillers, the fillers can be fibrous. For example, the filler can be a fibrous organic filler material such as wood pulp, hemp fibers, cellulose, or cellulose derivatives. While not wishing to be bound by theory, it is believed that including fibrous fillers in the amorphous solid can increase the tensile strength of the material.

In some instances, the amorphous solid does not include tobacco fiber. In certain examples, the amorphous solid does not include fibrous material.

In some embodiments, the amorphous solid is about 0.1%, 0.5%, 1%, 3%, 5%, 7%, or 10% to about 80% by weight. %, 50%, 45%, 40%, 35%, 30%, or 25% (all calculated on a dry weight basis) of the aerosol-forming material. For example, the amorphous solid can include 0.5-40%, 3-35%, or 10-25% by weight of aerosol-forming material.

The aerosol-generating material can include one or more active agents and/or fragrances, one or more aerosol-forming materials, and optionally one or more other functional materials.

Aerosol-forming materials can include one or more components capable of forming an aerosol. In some embodiments, the aerosol-forming material comprises one or more polyhydric alcohols such as propylene glycol, triethylene glycol, 1,3-butanediol, and glycerin, glycerol monoacetate, diacetate, or triacetate. Includes esters of polyhydric alcohols and/or aliphatic esters of monocarboxylic, dicarboxylic, or polycarboxylic acids, such as dimethyl dodecanedioate and dimethyl tetradecanedioate.

In some embodiments, the aerosol-forming material is glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoerythritol, ethyl vanillate, ethyl laurate, suberin. It can include one or more of diethyl acid, triethyl citrate, triacetin, diacetin mixtures, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

The one or more other functional materials can include one or more of pH modifiers, colorants, preservatives, adhesives, fillers, stabilizers, and/or antioxidants.

Thus, in some embodiments, the amorphous solid or aerosol-generating material can include a colorant or colorant. The addition of colorants or colorants can change the appearance of the amorphous solid or aerosol-generating material. The presence of a colorant in the amorphous solid or aerosol-generating material can enhance the appearance of the amorphous solid and/or aerosol-generating material. If present, the color of the amorphous solid can be matched to other components of the aerosol-generating material or to other components of the article comprising the amorphous solid by adding a colorant to the amorphous solid. .

A variety of colorants can be used depending on the desired color of the amorphous solid or aerosol-generating material. The color of the amorphous solid or aerosol-generating material can be, for example, white, green, red, purple, blue, brown, or black. Other colors are also envisioned. Natural or synthetic colorants can be used, such as natural or synthetic dyes, food grade colorants, and pharmaceutical grade colorants. In certain embodiments, the colorant is caramel, which can impart a brown appearance to the amorphous solid or aerosol-generating material. In such embodiments, the color of the amorphous solid or aerosol-generating material can be similar to the color of other components in the aerosol-generating material (such as the tobacco material) that include the amorphous solid. . In some embodiments, a colorant is added to the amorphous solid to make it visually indistinguishable from other components in the aerosol-generating material.

The colorant can be incorporated during the formation of the amorphous solid or aerosol-generating material (e.g., when forming a slurry containing the material forming the amorphous solid or aerosol-generating material) or after its formation (e.g. , by spraying onto the amorphous solid or aerosol-generating material).

The materials described herein can be present on or within a support to form a matrix. The support can be or include, for example, paper, card, cardboard, cardboard, recycled materials, plastic materials, ceramic materials, composite materials, glass, metal, or metal alloys. In some embodiments, the support comprises a susceptor. In some embodiments, the susceptor is embedded within the material. In some alternative embodiments, the susceptor is on one or both sides of the material.

A consumable is an article that includes or consists of an aerosol-generating material, some or all of which is intended to be consumed by a user during use. The consumable may include one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material delivery component, an aerosol-generating area, a housing, a web, a mouthpiece, a filter, and/or an aerosol modifier. I can do it. The consumable can also include an aerosol generator, such as a heater, which emits heat during use to cause the aerosol-generating material to generate an aerosol. The heater may comprise, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

Aerosol modifiers are substances configured to modify a generated aerosol, for example by changing the taste, flavor, acidity, or other properties of the aerosol, typically downstream of the aerosol generation zone. To position. The aerosol modifier can be provided within an aerosol modifier release component operable to selectively release the aerosol modifier.

Aerosol modifiers can be, for example, additives or adsorbents. Aerosol modifiers can include, for example, one or more of flavorants, colorants, water, and carbon adsorbents. Aerosol modifiers can be, for example, solids, liquids, or gels. Aerosol modifiers can be in the form of powders, threads, or granules. The aerosol modifier may be free of filtration materials.

The susceptor is a material that can be heated by penetration by a varying magnetic field, such as an alternating magnetic field. The susceptor may be an electrically conductive material, so penetration of the electrically conductive material by the varying magnetic field causes inductive heating of the heating material. The heating material may be a magnetic material, such that intrusion of the magnetic material by the varying magnetic field causes magnetic hysteresis heating of the heating material. The susceptor can be both electrically conductive and magnetic, so the susceptor can be heated by either heating mechanism. A device configured to generate a varying magnetic field is referred to herein as a magnetic field generator.

An aerosol generator is a device configured to generate an aerosol from an aerosol-generating material. In some embodiments, the aerosol generator is a heater configured to expose the aerosol-generating material to thermal energy to liberate one or more volatile substances from the aerosol-generating material and form an aerosol. be. In some embodiments, the aerosol generator is configured to generate an aerosol from the aerosol-generating material without heating. For example, an aerosol generator can be configured to subject the aerosol-generating material to one or more of vibrations, increased pressure, or electrostatic energy.

Induction heating is a process in which a conductive object is heated by the penetration of a varying magnetic field into the object. This process is explained by Faraday's law of electromagnetic induction and Ohm's law. An induction heater can include an electromagnet and a device for passing a varying current, such as an alternating current, through the electromagnet. When the electromagnet and the object to be heated are preferably arranged relative to each other such that the fluctuating magnetic field provided by the electromagnet penetrates the object, one or more eddy currents are generated in the object. Objects have resistance to the flow of electric current. Therefore, when such eddy currents are generated within an object, the flow against the object's electrical resistance causes the object to heat up. This process is called joule, ohmic, or resistive heating. Objects that can be inductively heated are known as susceptors.

In one embodiment, the susceptor is in the form of a closed circuit. It has been found that when the susceptor is in closed circuit form, the magnetic coupling between the susceptor and the electromagnet during use is enhanced, resulting in greater or improved Joule heating.

Magnetic hysteresis heating is a process in which an object made of magnetic material is heated by a varying magnetic field penetrating the object. A magnetic material can be thought of as containing many atomic scale magnets or magnetic dipoles. When a magnetic field penetrates such a material, the magnetic dipoles become aligned with the magnetic field. Thus, when a varying magnetic field, such as an alternating magnetic field provided by an electromagnet, penetrates the magnetic material, the orientation of the magnetic dipole changes with the variation of the applied magnetic field. This reorientation of the magnetic dipole generates heat within the magnetic material.

When an object is both electrically conductive and magnetic, a varying magnetic field penetrating the object can cause both Joule heating and magnetic hysteresis heating in the object. Furthermore, the use of magnetic materials can reinforce the magnetic field, thereby promoting Joule heating.

In each of the above processes, heat is generated in the object itself, rather than in an external heat source by conduction, so selecting a particularly suitable material and geometry of the object, as well as a suitable magnitude and orientation of the varying magnetic field relative to the object. A rapid temperature rise and a more uniform heat distribution in the object can be achieved by this. Additionally, induction heating and magnetic hysteresis heating do not require providing a physical connection between the variable magnetic field source and the object, allowing greater design freedom and control than heating profiles. , costs can be lowered.

Articles such as consumables described herein, e.g. rod-shaped articles, may be classified according to the length of the product as "regular" (typically in the range of 68-75 mm, such as from about 68 mm to about 72 mm), " "short" or "mini" (68 mm or less), "king size" (typically within the range of 75 to 91 mm, such as from about 79 mm to about 88 mm), "long" or "super king" (typically 91-105 mm, such as from about 94 mm to about 101 mm), and "ultra-long" (typically from about 110 mm to about 121 mm).

Articles can also be classified according to the circumference of the product as "Regular" (approximately 23-25 mm), "Wide" (more than 25 mm), "Slim" (approximately 22-23 mm), "Demi-Slim" (approximately 19-22 mm), "Super "slim" (approximately 16 to 19 mm), and "micro slim" (less than approximately 16 mm).

Thus, a king size, super slim type article, for example, has a length of about 83 mm and a circumference of about 17 mm.

The article can include an aerosol-generating material and a downstream portion downstream of the aerosol-generating material, and each type can be made with a different length of the downstream portion. The length of the downstream section is typically about 30 mm to 50 mm. A tipping paper connects the downstream section to the aerosol-generating material, the tipping paper typically having a greater length than the downstream section, e.g. 3-10 mm longer, such that the tipping paper covers the downstream section, e.g. in the form of a rod. overlapping the aerosol-generating material and connecting the downstream portion to the rod.

The articles described herein, as well as the aerosol generating materials and downstream portions thereof, can be made in any of the formats described above, but are not limited to.

The terms "upstream" and "downstream" as used herein are relative terms defined in relation to the direction in which the mainstream aerosol is drawn through the article or device in use.

The filament tow materials or filter materials described herein can include cellulose acetate fiber tows. Filament tows also include polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(1-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate) (PBAT) , starch-based materials, cotton, aliphatic polyester materials, and polysaccharide polymers, or combinations thereof. The filament tow can be plasticized with a suitable plasticizer for the tow, such as triacetin if the material is cellulose acetate tow, or the tow can be unplasticized. The tow may have other cross-sections such as "Y" or "X" shapes, filament denier values of 2.5 to 15 denier per filament, such as 8.0 to 11.0 denier per filament, and 5,000 to It can have any suitable specification, such as fibers having a total denier value of 50,000, such as 10,000 to 40,000. The cross-section of the fiber may have an isoperimetric ratio L ² /A of 25 or less, preferably 20 or less, more preferably 15 or less, where L is the circumference of the cross-section and A is the circumference of the cross-section. It is the area. Such fibers have a relatively small surface area for a given value of denier per filament, thereby improving aerosol delivery to the consumer. Filter materials described herein also include cellulosic materials such as paper. Such materials can have a relatively low density, such as about 0.1 to about 0.45 grams per cubic centimeter, to allow air and/or aerosols to pass through the material. Although described as a filter material, such material may have a primary purpose such as increasing the suction resistance of the component, so this is not related to filtration.

As used herein, the term "tobacco material" refers to any material that includes tobacco or derivatives or substitutes thereof. The term "tobacco material" can include one or more of tobacco, tobacco derivatives, puffed tobacco, recycled tobacco, or tobacco substitutes. The tobacco material can include one or more of ground tobacco, tobacco fiber, shredded tobacco, extruded tobacco, tobacco stems, tobacco leaves, regenerated tobacco, and/or tobacco extract.

As described herein, the active agent can include or be derived from one or more botanical substances or constituents, derivatives, or extracts thereof. As used herein, the term "plant material" includes, but is not limited to, extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, pods, shells, etc. , including any material derived from plants. Alternatively, the material may include active compounds naturally occurring in botanical materials, synthetically obtained active compounds. The material can be in the form of a liquid, gas, solid, powder, dust, crushed particles, granules, pellets, strips, strips, sheets, etc. Exemplary botanicals include tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, hazel, hibiscus, bay, licorice, and matcha. , yerba mate, orange peel, papaya, rose, sage, tea such as green or black tea, thyme, cloves, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rose. Marie, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, wintergreen, perilla, turmeric, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, blackcurrant, valerian, pimento, mace, damian, Marjoram, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, geranium, mulberry, ginseng, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab, or any combination thereof. . Mint is Mentha arvensis, Mentha c. v. , Mentha niliaca, Mentha piperita, Mentha piperita citrata c. v. , Mentha piperita c. v, Mentha spicata crispa, Mentha cardiofolia, Memtha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c. v. , and Mentha suaveolens mint varieties.

In some embodiments, the active agent comprises or is derived from one or more botanicals or components, derivatives, or extracts thereof, and the botanical is tobacco.

In some embodiments, the active agent comprises or is derived from one or more botanicals or components, derivatives, or extracts thereof, and the botanicals include eucalyptus, star anise, Selected from cocoa and hemp.

In some embodiments, the active agent comprises or is derived from one or more botanicals or components, derivatives, or extracts thereof, and the botanicals are selected from rooibos and fennel. be done.

In some embodiments, the substance to be delivered includes a fragrance.

As used herein, the terms "fragrance" and "flavoring agent" are used to create a desired taste, aroma, or other somatic sensation in products intended for adult consumers, where local regulations permit. Refers to materials that can be used. Fragrances may be naturally occurring flavoring materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, trumpet leaf, chamomile). , fenugreek, cloves, maple, matcha, menthol, mentha, aniseed (aniseed), cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherries, berries, red berries, cranberries, peaches, apples, oranges, Mango, clementine, lemon, lime, tropical fruit, papaya, rhubarb, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruit, Drambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender , aloe vera, cardamom, celery, cascarilla, nutmeg, sandalwood, bergamot, geranium, khat, naswar, betel, shisha, pine, honey essence, rose oil, vanilla, lemon oil, orange oil, orange blossom, cherry, Cassia, caraway, cognac, jasmine, ylang-ylang, sage, fennel, wasabi, pimento, ginger, coriander, coffee, hemp, mint oil from any species of the Mentha genus, eucalyptus, star anise, cocoa, lemongrass, rooibos , flax, ginkgo, hazel, hibiscus, bay, yerba mate, orange peel, rose, tea such as green or black tea, thyme, juniper, elderflower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon. Peel, mint, perilla, turmeric, cilantro, myrtle, blackcurrant, valerian, bell pepper, mace, damien, marjoram, olive, lemon balm, lemon basil, chives, caraway, verbena, tarragon, limonene, thymol, camphene), flavor enhancers , bitter receptor site blockers, sensory receptor site activators or stimulants, sugars and/or sugar substitutes (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol) ), as well as other additives such as charcoal, chlorophyll, minerals, botanicals, or breath fresheners. Fragrances can be imitations, synthetic or natural ingredients, or mixtures thereof. The perfume can be in any suitable form, for example liquid such as an oil, solid such as a powder, or gas.

In some embodiments, the flavor includes menthol, spearmint, and/or peppermint. In some embodiments, the flavor comprises cucumber, blueberry, citrus fruit, and/or red berry flavor ingredients. In some embodiments, the fragrance includes eugenol. In some embodiments, the flavor comprises flavor components extracted from tobacco. In some embodiments, the flavoring comprises flavoring ingredients extracted from cannabis.

In some embodiments, the flavoring agent is capable of achieving a somatosensation that is typically chemically induced and perceived by stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or instead of the olfactory or gustatory nerves. These can include agents that provide heating, cooling, stinging, numbing effects. Suitable thermal agents may include, but are not limited to, vanillyl ethyl ether, and suitable coolants include, but are not limited to, eucalyptol, WS-3. be able to.

The figures described herein use the same reference numerals to describe equivalent features, articles, or components.

FIG. 1 is a side cross-sectional view of an article 1 for use with a non-flammable aerosol delivery system. In this example and other examples described herein, the article can be a tobacco heated consumable.

The article 1 comprises a component 2, in this example a mouthpiece 2, and an aerosol-generating material 3, in this case a cylindrical rod of tobacco material, connected to the mouthpiece 2. The aerosol-generating material 3 provides an aerosol when heated, for example in a non-flammable aerosol delivery device as described herein forming a system, such as a non-flammable aerosol delivery device comprising a coil. In other embodiments, article 1 can include its own heat source, forming an aerosol delivery system, without the need for a separate aerosol delivery device. In an alternative, the component 2 may constitute the part of the article 1 that is downstream of the aerosol-generating material 3 and is not arranged to be received by the user's mouth.

Aerosol-generating material 3, also referred to herein as aerosol-generating substrate 3, comprises at least one aerosol-forming material. In this example, the aerosol forming material is glycerol. In the alternative, the aerosol-forming material can be another material described herein or a combination thereof. Aerosol-forming materials have been found to improve the perceived performance of articles by aiding in the transfer of compounds, such as fragrance compounds, from the aerosol-forming material to the consumer. However, a problem with adding such aerosol-forming materials to an aerosol-forming material within an article for use in a nonflammable aerosol delivery system is that when the aerosol-forming material is aerosolized upon heating, it may be delivered by the article. It is possible to increase the mass of the aerosol and thus the increased mass can maintain a higher temperature as it passes through the mouthpiece. As the aerosol passes through the mouthpiece, it transfers heat into the mouthpiece, thereby warming the outer surface of the mouthpiece, including the area that contacts the consumer's lips during use. Mouthpiece temperatures can be significantly higher than what a consumer can become accustomed to when smoking a conventional cigarette, for example, and undesirable effects can be caused by the use of such aerosol-forming materials.

In this example, the mouthpiece comprises a tubular part 4a, which in this example is formed by a hollow tube, also referred to as a cooling element. In this example, the mouthpiece 2 includes a body of material 6 downstream of the tubular portion 4a, in this example the body of material 6 is in adjacent abutting relationship with the tubular portion 4a. The body of material 6 and the tubular portion 4a each define a generally cylindrical outer shape and share a common longitudinal axis.

The material body 6 is wrapped in a first plug wrap 7. In this example, the tubular part 4a and the material body 6 are assembled using a second plug wrap 9 wrapped around both sections. A tipping paper 5 is wrapped over a portion of the aerosol-generating material rod 3 over the entire length of the mouthpiece 2, the tipping paper 5 having an adhesive on its inner surface to connect the mouthpiece 2 and the rod 3. have

In this example, the tubular portion comprises a wall comprising a second aerosol-generating material 4b, the second aerosol-generating material comprising an aerosol-generating material as described herein, such as an amorphous material as described herein. It is a quality solid material.

The second aerosol-generating material 4b includes at least one aerosol-forming material and may also include at least one aerosol modifier or other sensate material. The aerosol-forming material and/or aerosol modifier can be any aerosol-forming material or aerosol modifier described herein, or a combination thereof.

In this example, the second aerosol-generating material 4b is placed on the inner wall of the tubular portion 4a.

When an aerosol generated from the aerosol-generating material 3, referred to herein as the first aerosol, is drawn through the tubular portion 4a of the mouthpiece, heat from the first aerosol is transferred to the second aerosol-generating material. The aerosol-forming material of 4b can be aerosolized to form a second aerosol. The second aerosol can include a flavoring agent that can be additional to or complementary to the flavoring agent of the first aerosol.

For example, providing the second aerosol-generating material 4b to the tubular portion 4a can result in the production of a second aerosol that enhances or complements the aroma or appearance of the first aerosol.

The second aerosol-generating material 4b may include microcapsules configured to release the aerosol-generating material when exposed to a hot aerosol, such as the first aerosol. The microcapsules can include a wax shell or other material configured to decompose at the temperature of the first aerosol. Alternatively, the second aerosol-generating material 4b can include a coating on the tubular portion. The second aerosol-generating material 4b may alternatively include a sheet material in the form of an amorphous solid, such as those described herein.

The second aerosol-generating material 4b is applied to the tubular portion 4a by any suitable method and in any suitable form, such as by painting, spraying, printing, dispersing, or gluing a solution, slurry, sheet, or particles. be able to. In one example, the second aerosol-generating material 4b is applied as a sheet material adhered to the inner surface of the tubular portion 4a. The sheet material can be adhered to the paper or other material forming the inner surface of the tubular section 4a prior to its formation. The sheet can be applied as one or more strips extending through the tubular portion. The strip may have a width of eg 0.5mm to 10mm or 0.75mm to 5mm. The sheet may alternatively be applied over substantially the entire inner surface of the tubular portion 4a. In another example, the second aerosol-generating material 4b is sprayed as a liquid onto the material forming the inner surface of the tubular portion 4a. This can be carried out, for example, before, during or after the formation of the tubular portion 4a. The second aerosol-generating material 4b can be sprayed as a liquid in a pattern of longitudinal stripes along the length of the tubular section 4a or in a spiral or swirl pattern over the inner surface of the tubular section 4a.

In alternative embodiments, the body of material 6 may also include a second aerosol-generating material 4b instead of or in addition to the tubular portion 4a. For example, the second aerosol-generating material can also be sprayed directly into the material forming the cylindrical body of material 6.

In this example, the tubular portion 4a is formed from several layers of paper that are rolled in parallel and abut at the seams to form a hollow tube. In this example, the first and second paper layers are provided as double tubes, but other examples may use three, four, or more paper layers; Heavy or even heavier tubes can also be formed. Other structures can also be used, such as spirally wound paper layers, cardboard tubes, tubes formed using paper mache type processes, molded or extruded plastic tubes.

The tubular portion 4a may also be formed using a rigid plug wrap and/or tip paper as the second plug wrap 9 and/or tip paper 5 described herein, which is a separate tubular portion. means the element is not required. The rigid plug wrap and/or tipping paper is manufactured to have sufficient stiffness to withstand the axial compressive forces and bending moments that may occur during manufacture and during use of the article 1. For example, the stiff plug wrap and/or chipping paper can have a basis weight of 70 gsm to 120 gsm, more preferably 80 gsm to 110 gsm. Additionally or alternatively, the rigid plug wrap and/or tip paper may have a thickness of 80 μm to 200 μm, more preferably 100 μm to 160 μm, or 120 μm to 150 μm. In order to achieve an acceptable overall stiffness level for the tubular portion 4a, it may be desirable to have values within these ranges for both the second plug wrap 9 and the tipping paper 5.

Preferably, the tubular portion 4a has a wall thickness of at least about 100 μm to about 1.5 mm, preferably 100 μm to 1 mm, more preferably 150 μm to 500 μm, or about 300 μm. In this example, the tubular portion 4a has a wall thickness of approximately 290 μm. The "wall thickness" of the tubular section 4a corresponds to the wall thickness of the tubular section 4a in the radial direction. This can be measured using calipers, for example.

In this example, article 1 has a circumference of approximately 21 mm (ie, the article is of demi-rim type). Preferably, the article 1 has a rod of aerosol-generating material with a circumference greater than 19 mm. This has been found to provide sufficient circumference to produce an improved long-lasting aerosol over normal aerosol production sessions, which is desirable for consumers. When the article is heated, heat is transferred through the aerosol-generating material rod 3, volatilizing the components of the rod, and a circumference larger than 19 mm is particularly effective for generating aerosols in this way. There was found. Improved heating efficiency can be achieved by using an article with a circumference smaller than about 23 mm as the article is heated to release the aerosol. A rod circumference greater than 19 mm and less than 23 mm is preferred in order to maintain a suitable product length while achieving improved aerosolization through heating. In some examples, the rod circumference can be between 20 mm and 22 mm, which has been found to provide a good balance of allowing efficient heating while providing effective aerosol delivery. .

The outer circumference of the mouthpiece 2 is substantially the same as the outer circumference of the aerosol-generating material rod 3, so the transition between these components is smooth. In this example, the outer circumference of the mouthpiece 2 is approximately 20.8 mm.

In some examples, article 1 can be configured such that there is a separation distance (ie, a minimum distance) between the heater and tubular portion 4a of non-flammable aerosol delivery device 100. This prevents the heat from the heater from damaging the material forming the tubular portion 4a.

The minimum distance between the heater and the tubular portion 4a of the non-flammable aerosol delivery device 100 may be 3 mm or more. In some examples, the minimum distance between the heater and the tubular portion 4a of the non-flammable aerosol delivery device 100 is within the range of 3 mm to 10 mm, such as 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or It can be 10 mm.

The separation distance between the heating element and the tubular portion 4a of the non-flammable aerosol delivery device 100 can be achieved, for example, by adjusting the length of the aerosol-generating material rod 3.

In this example, the tip paper 5 extends 5 mm above the aerosol-generating material rod 3, but alternatively, the tip paper 5 extends 5 mm above the rod 3 to provide a secure attachment between the mouthpiece 2 and the rod 3. It can also extend from 3mm to 10mm, or more preferably from 4mm to 6mm. The tipping paper 5 may have a basis weight that is greater than the basis weight of the plug wrap used in the article 1, such as from 40 gsm to 80 gsm, more preferably from 50 gsm to 70 gsm, in this example 58 gsm. These ranges of basis weights result in chipping paper that has acceptable tensile strength, yet is flexible enough to wrap the article 1 and adhere to the chipping paper itself along the longitudinal wrap seam of the paper. It turns out that it can be obtained. After being wrapped around the mouthpiece 2, the outer circumference of the tipping paper 5 is about 21 mm.

The first plug wrap 7 preferably has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm. The first plug wrap 7 preferably has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. Preferably, the first plug wrap 7 is a non-porous plug wrap and has a permeability of, for example, less than 100 Coresta units, such as less than 50 Coresta units. However, in other embodiments, the first plug wrap 7 may be a porous plug wrap, for example having a permeability of greater than 200 Coresta units.

Preferably, the length of the body of material 6 is less than about 20 mm. In this example, the length of the material body 6 is 16 mm.

In this example, the body of material 6 is formed from filament tow. In this example, the tow used in material body 6 has a denier per filament (d.p.f.) of 8.4 and a total denier of 21,000. Alternatively, the tow can have a denier per filament (d.p.f.) of, for example, 9.5 and a total denier of 12,000. In this example, the tow comprises plasticized cellulose acetate tow. The plasticizer used in the tow accounts for approximately 7% by weight of the tow. In this example, the plasticizer is triacetin. In other examples, different materials may be used to form the body of material 6. For example, rather than a tow, the material body 6 can be formed from paper in a manner similar to paper filters known for use in cigarettes, for example. Alternatively, the body of material 6 may be formed from tows other than cellulose acetate, such as polylactic acid (PLA), other materials described herein with respect to filament tows, or similar materials. The tow, whether formed from cellulose acetate or other materials, preferably has a d. p. f. has. These denier per filament values provide a tow with relatively coarse and thick fibers that have a smaller surface area, so that the pressure drop across the mouthpiece 2 is lower d. p. f. The tow with the value will be smaller. In order to achieve a sufficiently homogeneous body of material 6, the tow is 12d. p. f. Hereinafter, preferably 11d. p. f. The following, even more preferably 10d. p. f. It is preferred to have a denier per filament of:

The total denier of the tow forming the body of material 6 is preferably at most 30,000, more preferably at most 28,000, even more preferably at most 25,000. These total denier values provide the toe occupying a smaller proportion of the cross-sectional area of the mouthpiece 2, resulting in a lower pressure drop across the mouthpiece 2 than tows with higher total denier values. For a body of material 6 of suitable stiffness, the tow preferably has a total denier of at least 8,000, more preferably at least 10,000. Preferably, the denier per filament is between 5 and 12, and the total denier is between 10,000 and 25,000. More preferably, the denier per filament is between 6 and 10, and the total denier is between 11,000 and 22,000. The cross-sectional shape of the filaments of the tow is preferably "Y" shaped, although in other embodiments the same d. p. f. Other shapes can also be used, such as an "X" shaped filament having a total denier value.

The cross-section of the fiber can have an isoperimetric ratio L ² /A of 25 or less, 20 or less, or 15 or less, where L is the circumference of the cross-section and A is the area of the cross-section. Such fibers have a relatively small surface area for a given value of denier per filament, thereby improving aerosol delivery to the consumer.

Preferably, the length of the tubular portion 4a is less than about 50 mm. More preferably, the length of the tubular portion 4a is less than about 40 mm. Even more preferably, the length of the tubular portion 4a is less than about 30 mm. Additionally or alternatively, the length of tubular portion 4a is preferably at least about 10 mm. Preferably, the length of the tubular portion 4a is at least about 15 mm. In some preferred embodiments, the length of tubular portion 4a is about 20 mm to about 30 mm, more preferably about 22 mm to about 28 mm, even more preferably about 24 to about 26 mm, and most preferably about 25 mm. In this example, the length of the tubular portion 4a is 25 mm.

The second plug wrap 9 preferably has a basis weight of less than 50 gsm, more preferably between about 20 gsm and 45 gsm. The second plug wrap 9 preferably has a thickness of 30 μm to 60 μm, more preferably 35 μm to 45 μm. The second plug wrap 9 is preferably a non-porous plug wrap having a permeability of less than 100 Coresta units, such as less than 50 Coresta units. However, in an alternative embodiment, the second plug wrap 9 can also be a porous plug wrap with a permeability of, for example, greater than 200 Coresta units.

The tubular portion 4a is located around and defines a cavity in the mouthpiece 2, which acts as a cooling segment. The air gap provides a chamber through which heated volatile components generated by the aerosol-generating material 3 flow. The tubular portion 4a is hollow and provides a chamber for the aerosol accumulation that is still sufficiently rigid to withstand the axial compressive forces and bending moments that may occur during manufacture and during use of the article 1. The tubular portion 4a provides a physical displacement between the aerosol-generating material 3 and the body of material 6. The physical displacement provided by the tubular section 4a provides a temperature gradient over the length of the tubular section 4a.

Preferably, the mouthpiece 2 comprises a cavity with an internal volume greater than 450 mm ³ . It has been found that providing a cavity of at least this volume allows for improved aerosol formation. Such a cavity size provides sufficient space within the mouthpiece 2 to allow heated volatile components to cool down, as would otherwise be possible, as an aerosol that is too warm may result. allows exposure of the aerosol-generating material 3 to a temperature higher than that of the aerosol-generating material 3. In this example the cavity is formed by the tubular part 4a, but in alternative configurations it can also be formed in different parts of the mouthpiece 2. More preferably, the mouthpiece 2 comprises a cavity formed, for example, in the tubular part 4a, which cavity has an internal volume of greater than 500 mm ³ , even more preferably greater than 550 mm ³ , which provides a further improvement in aerosolization. enable. In some examples, the internal cavity includes a volume of about 550 mm ³ to about 750 mm ³ , such as about 600 mm ³ or 700 mm ³ .

The tubular section 4a provides a temperature difference of at least 40 degrees Celsius between the heated volatile components entering the first upstream end of the tubular section 4a and the heated volatile components exiting the second downstream end of the tubular section 4a. It can be configured as follows. The tubular section 4a has a temperature of at least 60 degrees Celsius, preferably at least 80 degrees Celsius, between the heated volatile components entering the first upstream end of the tubular section 4a and the heated volatile components exiting the second downstream end of the tubular section 4a. It is preferably configured to provide a temperature difference of at least 100 degrees Celsius, more preferably at least 100 degrees Celsius. This temperature difference in the length of the tubular portion 4a protects the temperature-sensitive material body 6 from the high temperatures of the aerosol-generating material 3 when heated.

In alternative articles, the tubular portion 4a may be replaced by an alternative cooling element, for example an element formed from a body of material that performs the function of cooling the aerosol while allowing it to pass longitudinally.

The mouthpiece 2 of the article 1 comprises an upstream end 3a adjacent to the aerosol-generating substrate 3 and a downstream end 2b remote from the aerosol-generating substrate 3.

Preferably, the pressure drop or pressure differential (also referred to as inhalation resistance) in the mouthpiece, eg, the portion of the article 1 downstream of the aerosol-generating material 3, is less than about 40 mm _H2O . It has been found that such a pressure drop allows sufficient aerosol containing desired compounds, such as perfume compounds, to reach the consumer through the mouthpiece 2. More preferably, the pressure drop across mouthpiece 2 is less than about 32 mm _H2O . In some embodiments, using a mouthpiece 2 having a pressure drop of less than 31 mm H ₂ O, such as about 29 mm H ₂ O, about 28 mm H ₂ O, or about 27.5 mm H ₂ O, provides particularly improved aerosol Realized. Alternatively or additionally, the pressure drop of the mouthpiece may be at least 10 mm _H2O , preferably at least 15 mm _H2O , more preferably at least 20 mm _H2O . In some embodiments, the mouthpiece pressure drop can be about 15 mm H ₂ O to 40 mm H ₂ O. These values allow the mouthpiece 2 to decelerate the aerosol as it passes through the mouthpiece 2, thus giving the aerosol time to decrease in temperature before reaching the downstream end 2b of the mouthpiece 2. can get.

In this example, aerosol-generating material 3 is rolled up within web 10 . The web 10 can be, for example, a paper or paper-backed foil web. In this example, web 10 is substantially impermeable to air. In an alternative embodiment, web 10 preferably has a permeability of less than 100 Coresta units, more preferably less than 60 Coresta units. It has been found that low permeability webs, for example having a permeability of less than 100 Coresta units, more preferably less than 60 Coresta units, result in improved aerosol formation within the aerosol-generating material 3. Without wishing to be bound by theory, it is hypothesized that this is due to reduced loss of aerosol compounds in the web 10. The permeability of the web 10 can be measured according to ISO 2965:2009 for determining the air permeability of materials used as cigarette paper, filter plug wrap, and filter bonding paper.

In this embodiment, web 10 includes aluminum foil. Aluminum foil has been found to be particularly effective in promoting aerosol formation within the aerosol-generating material 3. In this example, the aluminum foil has a metal layer with a thickness of approximately 6 μm. In this example, the aluminum foil has a paper backing. However, in alternative configurations, the aluminum foil may have other thicknesses, for example between 4 μm and 16 μm. The aluminum foil also need not have a paper backing, but can have a backing formed from other materials, or have a backing material, for example to help provide the foil with adequate tensile strength. It doesn't have to be. Metal layers or foils other than aluminum can also be used. The total thickness of the web is preferably between 20 μm and 60 μm, more preferably between 30 μm and 50 μm, to provide a web with suitable structural integrity and heat transfer properties. The tensile force that can be applied to the web before it tears can be greater than 3,000 grams, such as from 3,000 to 10,000 grams, or from 3,000 to 4,500 grams. be able to.

In some examples, the web 10 surrounding the aerosol-generating material includes a citrate salt, such as sodium citrate and/or potassium citrate. In such instances, web 10 can have a citrate content of 2% by weight or less, or 1% by weight or less. Reducing the citrate content of the web can help reduce any visible discoloration of the web during use.

In some examples, the web 10 surrounding the aerosol-generating material has a high level of permeability, such as greater than about 1000 Coresta units, or about 1500 Coresta units, or about 2000 Coresta units. The permeability of the web 10 can be measured according to ISO 2965:2009 for determining the air permeability of materials used as cigarette paper, filter plug wrap, and filter bonding paper.

The web 10 is made of a high intrinsic permeability level material, an inherently porous material, or any inherently permeable material in which the ultimate permeability level is achieved by providing permeable sections or areas in the web 10. It can be formed from a material having a level. Providing a permeable web 10 provides a path for air to enter the smoking article. The web can be provided with permeability such that the amount of air entering the article through the rod of aerosol-generating material is relatively greater than the amount of air entering the article through the vent area 12 in the mouthpiece. . Articles with this configuration can produce a more flavorful aerosol, making the user more satisfied.

The article has a ventilation level of approximately 75% of the aerosols that are inhaled through the article. In alternative embodiments, the article can have a ventilation level of 50% to 80%, such as 65% to 75%, of the aerosol drawn through the article. These levels of ventilation help to slow down the flow of aerosol being drawn through the mouthpiece 2, thereby allowing it to cool sufficiently before reaching the downstream end 2b of the mouthpiece 2. Venting is provided directly into the mouthpiece 2 of the article 1. In this example, ventilation is provided into the tubular portion 4a, which has been found to be particularly beneficial in assisting the aerosol generation process. Venting is provided through first and second parallel rows of perforations 12, in this case perforations 12 located 17.925 mm and 18.625 mm respectively from the downstream mouth end 2b of the mouthpiece 2. , formed as laser drilling. These perforations pass through the tipping paper 5, the second plug wrap 9 and the tubular portion 4a. In alternative embodiments, ventilation may be provided into the mouthpiece at other locations.

Alternatively, ventilation may be provided through a single row of perforations, such as laser perforations, into the portion of the article in which the tubular portion is located. This was found to result in improved aerosol formation, which could be attributed to the airflow through the perforations being more uniform than with multiple rows of perforations for a given aeration level. It will be done.

Aerosol temperature was found to generally increase with decreasing aeration level. However, the relationship between aerosol temperature and aeration level does not appear to be linear; for example, at lower target aeration levels, variations in aeration due to manufacturing tolerances have less impact. For example, with a ventilation tolerance of ±15%, if the target ventilation level is 75%, the aerosol temperature may increase by about 6° C. at the lower ventilation limit (60% ventilation). However, if the target aeration level is 60%, the aerosol temperature will only increase by about 3.5° C. at the lower aeration limit (45% aeration). Accordingly, the target ventilation level for the article may be in the range of 40% to 70%, such as 45% to 65%. The average ventilation level for the at least 20 articles may be between 40% and 70%, such as between 45% and 70% or between 51% and 59%.

In this example, the aerosol-forming material added to the aerosol-generating substrate 3 accounts for 14% by weight of the aerosol-generating substrate 3. The aerosol-forming material preferably accounts for at least 5% by weight of the aerosol-forming substrate, more preferably at least 10%. The aerosol-forming material preferably accounts for less than 25%, more preferably less than 20%, such as 10%-20%, 12%-18%, or 13%-16% by weight of the aerosol-generating substrate.

Preferably, the aerosol-generating material 3 is provided as a cylindrical rod of aerosol-generating material. Regardless of the formation of the aerosol-generating material, the aerosol-generating material 3 preferably has a length of about 10 mm to 100 mm. In some embodiments, the length of the aerosol-generating material is preferably within the range of about 25 mm to 50 mm, more preferably within the range of about 30 mm to 45 mm, and even more preferably within the range of about 30 mm to 40 mm.

The volume of aerosol-generating material 3 provided can vary from about 200 mm ³ to about 4300 mm ³ , preferably from about 500 mm ³ to 1500 mm ³ , more preferably from about 1000 mm ³ to about 1300 mm ³ . Providing aerosol-generating materials in these volumes, for example from about 1000 mm ³ to about 1300 mm ³ , provides excellent Advantageously, it has been shown to achieve an aerosol.

The mass of aerosol-generating material 3 provided can be greater than 200 mg, for example about 200 mg to 400 mg, preferably about 230 mg to 360 mg, more preferably about 250 mg to 360 mg. Advantageously, it has been found that providing a larger mass of aerosol-generating material results in improved perceptual performance when compared to aerosols produced from smaller masses of tobacco material.

Preferably, the aerosol generating material or substrate is formed from a tobacco material as described herein that includes a tobacco component.

In the tobacco materials described herein, the tobacco component preferably contains recycled paper tobacco. The tobacco component can also include leaf tobacco, extruded tobacco, and/or bandcast tobacco.

Aerosol generating material 3 can include recycled tobacco material having a density of less than about 700 milligrams per cubic centimeter (mg/cc). Such tobacco materials have been found to be particularly effective in providing aerosol-generating materials that can be heated quickly to release aerosols when compared to more dense materials. For example, we tested the properties of various aerosol-generating materials when heated, such as bandcast recycled tobacco materials and paper recycled tobacco materials. It turns out that for each given aerosol-generating material there is a certain zero heat flow temperature, below which the net heat flow is endothermic while heat is being added to the material; In other words, more heat enters the material than leaves it, and above this zero heat flow temperature, the net heat flow is exothermic; in other words, more heat leaves the material than enters it. Materials with densities less than 700 mg/cc had lower zero heat flow temperatures. Since the majority of the heat flow exiting the material is due to aerosol formation, having a lower zero heat flow temperature has a beneficial impact on the time it takes to initially release the aerosol from the aerosol-generating material. For example, an aerosol-generating material with a density of less than 700 mg/cc has a zero heat flow temperature of less than 164°C, compared to a material with a density of greater than 700 mg/cc has a zero heat flow temperature of greater than 164°C. There was found.

The density of the aerosol-generating material also affects the rate at which heat is conducted through the material; at lower densities, e.g. below 700 mg/cc, heat will conduct through the material more slowly and therefore create a more persistent aerosol. It becomes possible to release

Preferably, the aerosol generating material 3 comprises recycled tobacco material, such as paper recycled tobacco material, having a density of less than about 700 mg/cc. More preferably, the aerosol generating material 3 comprises recycled tobacco material having a density of less than about 600 mg/cc. Alternatively or additionally, the aerosol generating material 3 preferably comprises recycled tobacco material having a density of at least 350 mg/cc, which is believed to allow a sufficient amount of heat transfer in the material.

The tobacco material can be provided in the form of chopped rag tobacco. The shredded lug tobacco can have a cut width of at least 15 cuts per inch (equivalent to about 5.9 cuts per cm, or about 1.7 mm cut width). The shredded rag tobacco preferably has at least 18 cuts per inch (about 7.1 cuts per cm, equivalent to a cut width of about 1.4 mm), and more preferably at least 20 cuts per inch (about 7.9 cuts per cm, equivalent to a cut width of about 1.4 mm). It has a step width of approximately 1.27 mm (equivalent to a step width of about 1.27 mm). In one example, shredded rag tobacco has a cut width of 22 cuts per inch (about 8.7 cuts per cm, equivalent to a cut width of about 1.15 mm). The shredded lug tobacco preferably has a chop width of 40 cuts per inch (about 15.7 cuts per cm, equivalent to a cut width of about 0.64 mm) or less. A step width of 0.5 mm to 2.0 mm, such as 0.6 mm to 1.5 mm, or 0.6 mm to 1.7 mm, results in an increase in the surface area to volume ratio, especially when heated, as well as the overall It has been found that a desirable tobacco material with respect to density and pressure drop is obtained. Chopped rag tobacco can be formed from a mixture of tobacco material forms, such as one or more of recycled paper tobacco, leaf tobacco, extruded tobacco, and bandcast tobacco. Preferably, the tobacco material comprises recycled paper tobacco or a mixture of recycled paper tobacco and leaf tobacco.

In the tobacco materials described herein, the tobacco materials can contain filler components. The filler component is generally a non-tobacco component, ie, a component that does not contain materials derived from tobacco. The filler component can be non-tobacco fibers such as wood fibers or pulp or wheat fibers. Filler components can also be inorganic materials such as chalk, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulfate, magnesium carbonate, and the like. The filler component can also be a non-tobacco cast or extruded material. The filler component may be present in an amount of 0 to 20% by weight of the tobacco material or 1 to 10% by weight of the composition. In some embodiments, no filler component is present.

In the tobacco materials described herein, the tobacco material contains an aerosol-forming material. In this context, an "aerosol-forming material" is an agent that promotes the production of an aerosol. Aerosol-forming materials can facilitate aerosol production by promoting initial vaporization and/or condensation of a gas into an inhalable solid and/or liquid aerosol. In some embodiments, the aerosol-forming material can improve the delivery of perfume from the aerosol-generating material. Generally, any suitable aerosol-forming material or agent can be included within the aerosol-generating materials of the present invention, including those described herein. Other suitable aerosol-forming materials include, but are not limited to, polyols such as sorbitol, glycerol, and glycols such as propylene glycol or triethylene glycol, monohydric alcohols, and non-polyols such as high boiling hydrocarbons. , acids such as lactic acid, glycerol derivatives, diacetin, triacetin, triethylene glycol diacetate, esters such as triethyl citrate, or myristic acid, including ethyl myristate and isopropyl myristate, as well as methyl stearate, dimethyl dodecanedioate, and aliphatic carboxylic acid esters such as dimethyl tetradecanedioate. In some embodiments, the aerosol-forming material can be glycerol, propylene glycol, or a mixture of glycerol and propylene glycol. The total amount of glycerol, propylene glycol, or mixture of glycerol and propylene glycol used may be in the range of 10% to 30%, such as 15% to 25%, of the tobacco material measured on a dry weight basis. . Glycerol may be present in an amount of 10-20% by weight of the tobacco material, such as 13-16% by weight of the composition, or about 14% or 15% by weight of the composition. Propylene glycol, if present, may be present in an amount of 0.1 to 0.3% by weight of the composition.

Aerosol-forming materials can be included in any component of the tobacco material, such as any tobacco component and/or filler component, if present. Alternatively or additionally, the aerosol-forming material can be added separately to the tobacco material. In either case, the total amount of aerosol-forming material within the tobacco material may be as defined herein.

The tobacco material can contain from 10% to 90% by weight of tobacco leaf, and the aerosol-forming material is provided in an amount up to about 10% by weight of leaf tobacco. It has been found that this can be added at a greater weight percentage than another component of the tobacco material, such as recycled tobacco material, to achieve an overall level of aerosol-forming material of 10% to 20% by weight of the tobacco material. is advantageous.

The tobacco materials described herein contain nicotine. The nicotine content is between 0.5 and 1.75% by weight of the tobacco material, and may for example be between 0.8 and 1.5% by weight of the tobacco material. Additionally or alternatively, the tobacco material contains 10% to 90% tobacco leaf and has a nicotine content greater than 1.5% by weight of tobacco leaf. By using tobacco with a nicotine content higher than 1.5% in combination with a lower nicotine matrix such as recycled paper tobacco, recycled paper tobacco was used alone while having adequate nicotine levels. Advantageously, it has been found to provide a tobacco material with better perceptual performance than in other cases. Tobacco leaves, such as chopped rag tobacco, can have a nicotine content of, for example, 1.5% to 5% by weight of the tobacco leaf.

The tobacco materials described herein can contain an aerosol modifier such as any of the flavors described herein. In one embodiment, the tobacco material contains menthol to form a menthol-loaded article. The tobacco material may contain 3 mg to 20 mg menthol, preferably 5 mg to 18 mg, more preferably 8 mg to 16 mg menthol. In this example, the tobacco material contains 16 mg of menthol. The tobacco material may contain from 2% to 8% menthol, preferably from 3% to 7% menthol, more preferably from 4% to 5.5% menthol. In one embodiment, the tobacco material includes 4.7% menthol by weight. Such high levels of menthol loading can be achieved using a high percentage of recycled tobacco material, for example greater than 50% by weight of the tobacco material. Alternatively or additionally, the menthol loading level that can be achieved can be increased by using large amounts of aerosol-generating material, such as tobacco material, such as greater than about 500 ^mm3 , or preferably about 1000 ^mm3 . More aerosol generating materials such as tobacco materials are used.

In the compositions described herein, when amounts are given in weight percent, for the avoidance of doubt, this refers to dry basis weight, unless specifically indicated to the contrary. Therefore, for purposes of determining weight percent, any water that may be present within the tobacco material or any component thereof is completely ignored. The moisture content of the tobacco materials described herein can vary, for example from 5 to 15% by weight. The moisture content of the tobacco materials described herein may vary according to, for example, the temperature, pressure, and humidity conditions under which the composition is maintained. Moisture content can be determined by Karl Fischer analysis, as known to those skilled in the art. On the other hand, for the avoidance of doubt, even when the aerosol-forming material is a component of the liquid phase, such as glycerol or propylene glycol, all components other than water are included in the weight of the tobacco material. However, when the aerosol-forming material is provided within the tobacco component of the tobacco material or within the filler component (if present) of the tobacco material, instead of or in addition to being added separately to the tobacco material, the aerosol-forming material is not included in the weight of the tobacco component or filler component, but is included in the weight of the "aerosol-forming material" in weight percentages as defined herein. All other ingredients present in the tobacco component are included in the weight of the tobacco component, even if they are derived from non-tobacco sources (eg, non-tobacco fibers in the case of recycled paper tobacco).

In one embodiment, the tobacco material comprises a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists essentially of a tobacco component as defined herein and an aerosol-forming material as defined herein. In one embodiment, the tobacco material consists of a tobacco component as defined herein and an aerosol-forming material as defined herein.

The recycled paper tobacco is present within the tobacco component of the tobacco materials described herein in an amount from 10% to 100% by weight of the tobacco component. In embodiments, the recycled paper tobacco is present in an amount of 10% to 80% or 20% to 70% by weight of the tobacco component. In further embodiments, the tobacco component consists essentially of or consists of recycled paper tobacco. In a preferred embodiment, leaf tobacco is present within the tobacco component of the tobacco material in an amount of at least 10% by weight of the tobacco component. For example, the tobacco can be present in an amount of at least 10% by weight of the tobacco component, with the remainder of the tobacco component being in another form such as paper recycled tobacco, bandcast recycled tobacco, or bandcast recycled tobacco and tobacco granules. Contains a combination of cigarettes.

Recycled tobacco refers to tobacco material formed by a process in which tobacco raw materials are extracted with a solvent to provide a residual extract containing soluble and fibrous materials, and then the extract (usually after concentration and optionally After further processing) is recombined with the fibrous material from the residue by depositing the extract onto the fibrous material (usually after purification of the fibrous material, optionally a portion of the non-tobacco fibers is added). The recombination process is similar to the papermaking process.

The recycled paper tobacco can be any type of recycled paper tobacco known in the art. In certain embodiments, recycled paper tobacco is made from raw materials that include one or more of tobacco strips, tobacco stalks, and whole tobacco. In a further embodiment, the recycled paper tobacco is made from raw materials consisting of tobacco strips and/or whole leaf tobacco and tobacco stalks. However, in other embodiments, fragments, granules, and shells may alternatively or additionally be used in the raw material.

Recycled paper tobacco for use in the tobacco materials described herein can be prepared by methods known to those skilled in the art for preparing recycled paper tobacco.

FIG. 2 shows a side sectional view of a further article 1' comprising a component 2', in this example a mouthpiece 2', comprising a hollow tubular element 8. The mouthpiece 2' is substantially the same as the mouthpiece 2 described above, except that the mouthpiece 2' has at its downstream end 2b a hollow tubular element 8 formed from filament tow. In particular, the mouthpiece 2' includes a tubular portion 4 with a wall containing a second aerosol-generating material, as described with reference to FIG. The second aerosol-generating material is an aerosol-generating material described herein, such as an amorphous solid material described herein. In this example, the tubular part 4a, the material body 6 and the hollow tubular element 8 are assembled using a second plug wrap 9 wrapped around all three sections. In an alternative, the component 2' may constitute a part of the article 1' that is downstream of the aerosol-generating material 3 and is not arranged to be received in the user's mouth.

Preferably, the length of the body of material 6 is less than about 15 mm. More preferably, the length of the body of material 6 is less than about 10 mm. Additionally or alternatively, the length of the body of material 6 is at least about 5 mm. Preferably, the length of the material body 6 is at least about 6 mm. In some preferred embodiments, the length of the body of material 6 is about 5 mm to about 15 mm, more preferably about 6 mm to about 12 mm, even more preferably about 6 mm to about 12 mm, and most preferably about 6 mm, 7 mm, 8 mm. , 9mm, or 10mm. In this example, the length of the material body 6 is 10 mm.

Typically, the portion of the mouthpiece that contacts the consumer's lips is a paper tube that is hollow or surrounds a cylinder of filter material. It has been found that by providing a hollow tubular element 8, the temperature of the outer surface of the mouthpiece 2' at the downstream end 2b of the mouthpiece in contact with the consumer's mouth is significantly reduced when the article 1' is in use. It is advantageous to do so. In addition, it has been found that the use of a hollow tubular element 8 also significantly reduces the temperature of the outer surface of the mouthpiece 2' upstream of the hollow tubular element 8. Without wishing to be bound by theory, this suggests that the hollow tubular element 8 allows the aerosol to pass closer to the center of the mouthpiece 2', thus reducing the transfer of heat from the aerosol to the outer surface of the mouthpiece 2'. It is hypothesized that this is due to reduced transmission.

The hollow tubular element 8 may also or alternatively include a second aerosol-generating material 4b, as described above. In this example, the hollow tubular element 8 is formed from filament tow. In alternative embodiments, the hollow tubular element may be formed using any of the structures described herein for tubular portion 4a.

The “wall thickness” of the hollow tubular element 8 corresponds to the wall thickness of the tube 8 in the radial direction. This can be measured similarly to the tubular section. Advantageously, the wall thickness is greater than 0.9 mm, more preferably greater than or equal to 1.0 mm. Preferably, the wall thickness is substantially constant across the wall of the hollow tubular element 8. However, if the wall thickness is not substantially constant, the wall thickness is preferably greater than 0.9 mm, more preferably greater than or equal to 1.0 mm at any point around the hollow tubular element 8.

In some embodiments, the length of hollow tubular element 8 is less than about 20 mm. For example, the length of hollow tubular element 8 can be less than about 15 mm. The length of the hollow tubular element 8 may also be less than about 10 mm. Additionally or alternatively, the length of the hollow tubular element 8 may be at least about 5 mm. Preferably, the length of the hollow tubular element 8 is at least about 6 mm. In some preferred embodiments, the length of the hollow tubular element 8 is about 5 mm to about 20 mm, such as about 6 mm to about 10 mm, or about 6 mm to about 8 mm, such as about 6 mm, 7 mm, or about 8 mm. In this example, the length of the hollow tubular element 8 is 6 mm.

In some embodiments, it may be particularly advantageous to use hollow tubular elements 8 having a length greater than about 10 mm, such as from about 10 mm to about 30 mm or from about 12 mm to about 25 mm. It has been found that the consumer's lips, in some cases, are likely to extend approximately 12 mm from the mouth end of the article 1 when inhaling the aerosol from the article 1, so that the hollow tubular element 4 is likely to extend at least 10 mm or at least Having a length of 12 mm means that most of the consumer's lips surround this element 8.

The density of hollow tubular element 8 is preferably at least about 0.25 grams per cubic centimeter (g/cc), more preferably at least about 0.3 g/cc. The density of hollow tubular element 8 is preferably less than about 0.75 grams per cubic centimeter (g/cc), more preferably less than 0.6 g/cc. In some embodiments, the density of the hollow tubular element 8 is between 0.25 and 0.75 g/cc, more preferably between 0.3 and 0.6 g/cc, more preferably between 0.4 g/cc and 0.75 g/cc. 6g/cc or about 0.5g/cc. These densities have been found to provide a good balance between the improved stiffness provided by higher density materials and the lower heat transfer properties of lower density materials. For the purposes of the present invention, the "density" of the hollow tubular element 8 refers to the density of the filament tow forming the element with any plasticizer incorporated therein. The density can be determined by dividing the total weight of the hollow tubular element 8 by the total volume of the hollow tubular element 8, where the total volume Can be calculated using measurements. If necessary, appropriate dimensions can be measured using a microscope.

The filament tow forming the hollow tubular element 8 preferably has a total denier of less than 45,000, more preferably less than 42,000. It has been found that this total denier allows the formation of hollow tubular elements 8 that are not too dense. The total denier is preferably at least 20,000, more preferably at least 25,000. In a preferred embodiment, the filament tow forming the hollow tubular element 8 has a total denier of 25,000 to 45,000, more preferably 35,000 to 45,000. The cross-sectional shape of the filaments of the tow is preferably "Y" shaped, although other shapes may be used in other embodiments, such as "X" shaped filaments.

Preferably, the filament tow forming the hollow tubular element 8 has a denier per filament of greater than 3. It has been found that this denier per filament allows the formation of hollow tubular elements 8 that are not too dense. The denier per filament is preferably at least 4, more preferably at least 5. In a preferred embodiment, the filament tow forming the hollow tubular element 8 has a denier per filament of 4 to 10, more preferably 4 to 9. In one example, the filament tow forming the hollow tubular element 8 has an 8Y40,000 tow formed from cellulose acetate and contains 18% of a plasticizer, such as triacetin.

Preferably, the hollow tubular element 8 has an internal diameter greater than 3.0 mm. A diameter smaller than this may increase the velocity of the aerosol reaching the consumer's mouth through the mouthpiece 2' more than desired, resulting in the aerosol becoming too warm, e.g. or reaching a temperature greater than 45°C. More preferably, the hollow tubular element 8 has an inner diameter greater than 3.1 mm, even more preferably greater than 3.5 mm or 3.6 mm. In one embodiment, the inner diameter of the hollow tubular element 8 is approximately 3.9 mm.

Preferably, the hollow tubular element 8 contains 15% to 22% by weight of plasticizer. In the case of cellulose acetate tow, the plasticizer is preferably triacetin, although other plasticizers such as polyethylene glycol (PEG) can also be used. More preferably, the hollow tubular element 8 comprises 16% to 20% by weight plasticizer, such as about 17%, about 18%, or about 19% plasticizer.

In this example, the tubular portion 4a is the first hollow tubular element and the hollow tubular element 8 is the second hollow tubular element.

In this example, ventilation is provided into the tubular portion 4a as described in connection with FIG. In alternative embodiments, ventilation may also be provided elsewhere into the mouthpiece, for example into the material body 6 or the hollow tubular element 8.

Figure 3a is a side cross-sectional view of a further article 1'' including a capsule storage component 2'', in this example a mouthpiece 2''. 1 is a cross-sectional view of the capsule-enclosed mouthpiece shown in FIG. The article 1 and the mouthpiece 2 shown in FIG. It includes a tubular section 4 with walls containing two aerosol-generating materials. The second aerosol-generating material is an aerosol-generating material described herein, such as an amorphous solid material described herein. In other examples, the aerosol modifier can be provided in other forms, such as material injected into the body of material 6 or provided on a thread, e.g. the thread can be loaded with flavorants or other aerosol modifiers. An aerosol modifier can also be placed within the material body 6. In an alternative, the component 2'' may constitute the part of the article 1'' that is downstream of the aerosol-generating material 3 and is not arranged to be received within the user's mouth.

Capsule 11 may constitute a breakable capsule, for example a capsule having a solid frangible shell surrounding a liquid payload. In this example a single capsule 11 is used. The capsule 11 is entirely embedded within the material body 6. In other words, the capsule 11 is completely surrounded by the material forming the material body 6. In other examples, multiple breakable capsules may be placed within the body of material 6, such as two, three, or more breakable capsules. The length of the material body 6 can be increased to accommodate the number of capsules required. In instances where multiple capsules are used, the individual capsules can be the same or different from each other with respect to size and/or capsule payload. In other examples, multiple bodies 6 of material may be provided, each body housing one or more capsules.

Capsule 11 has a core-shell structure. In other words, the capsule 11 comprises a shell enclosing a liquid agent, such as a flavoring agent or other agent, the liquid agent being any one of the flavoring agents or aerosol modifiers described herein. be able to. The shell of the capsule can be ruptured by the user to release flavorants or other active substances into the body 6 of material. The first plug wrap 7' may constitute a barrier coating to render the material of the plug wrap substantially impermeable to the liquid payload of the capsule 11. Alternatively or additionally, the second plug wrap 9 and/or tip paper 5 is a barrier to render the plug wrap and/or tip paper material substantially impermeable to the liquid payload of the capsule 11. A coating can be constructed.

In this example, the capsule 11 is spherical and has a diameter of approximately 3 mm. In other examples, other shapes and sizes of capsules may be used. The total weight of capsule 11 can range from about 10 mg to about 50 mg.

In this example, the capsule 11 is placed at a longitudinally central position within the material body 6 . That is, the capsule 11 is placed such that its center is 4 mm away from each end of the material body 6. In other examples, the capsule 11 may be located at a location other than a longitudinally central location within the body 6, i.e. closer to the downstream end than the upstream end of the body 6, or closer to the downstream end of the body 6. It can be placed near the upstream end. Preferably, the mouthpiece 2'' is configured such that the capsule 11 and the vent 12 are longitudinally offset from each other within the mouthpiece 2''.

A cross-sectional view of the mouthpiece 2'' is shown in Figure 3b, taken along the line AA' in Figure 3a. Figure 3b shows the capsule 11, the material body 6, the first plug wrap 7. ' and a second plug wrap 9, as well as tipping paper 5. In this example, the capsule 11 is centered on the longitudinal axis (not shown) of the mouthpiece 2''. The first plug wrap 7' and the second plug wrap 9 as well as the tipping paper 5 are arranged concentrically around the body of material 6.

The breakable capsule 11 has a core-shell structure. That is, the encapsulant or barrier material creates a shell around the core containing the aerosol modifier. The shell structure prevents migration of the aerosol modifier during storage of the article 1', but allows controlled release of the aerosol modifier, also called aerosol modifier, during use.

In some cases, the barrier material (also referred to herein as an encapsulating material) is fragile. The capsule is crushed or otherwise broken or destroyed by the user to release the encapsulated aerosol modifier. Typically, the capsule is destroyed just before heating begins, but the user can choose when to release the aerosol modifier. The term "breakable capsule" refers to a capsule whose shell can be broken by pressure to release the core, and more specifically, when the user wishes to release the core of the capsule, the use The shell can be ruptured under pressure applied by a person's finger.

In some cases, the barrier material is heat resistant. That is, in some cases, the barrier will not rupture, melt, or otherwise collapse at the temperatures reached at the capsule site during operation of the aerosol delivery device. Illustratively, a capsule placed within the mouthpiece can be exposed to a temperature within the range of, for example, 30°C to 100°C, and the barrier material continues to hold the liquid core up to at least about 50°C to 120°C. can be retained.

In other cases, the capsule releases the core composition when heated, for example, by melting the barrier material or by expanding the capsule and rupturing the barrier material.

The total weight of the capsule can range from about 1 mg to about 100 mg, preferably from about 5 mg to about 60 mg, from about 8 mg to about 50 mg, from about 10 mg to about 20 mg, or from about 12 mg to about 18 mg.

The total weight of the core formulation can range from about 2 mg to about 90 mg, preferably from about 3 mg to about 70 mg, from about 5 mg to about 25 mg, from about 8 mg to about 20 mg, or from about 10 mg to about 15 mg.

The capsule according to the invention comprises the core described above and a shell. The capsules can exhibit a crush strength of about 4.5N to about 40N, more preferably about 5N to about 30N or about 28N (eg, about 9.8N to about 24.5N). Capsule burst strength can be measured when the capsule is removed from the material body 6, using a force gauge to measure the force when the capsule is pressed between two flat metal plates and bursts. A suitable measuring device is a Sauter FK50 force gauge with a flat head attachment, which can be used to press the capsule against a flat hard surface with a surface similar to the attachment.

The capsule can be substantially spherical and have a diameter of at least about 0.4 mm, 0.6 mm, 0.8 mm, 1.0 mm, 2.0 mm, 2.5 mm, 2.8 mm, or 3.0 mm. can have The diameter of the capsule is less than about 10.0 mm, 8.0 mm, 7.0 mm, 6.0 mm, 5.5 mm, 5.0 mm, 4.5 mm, 4.0 mm, 3.5 mm, or 3.2 mm. I can do it. Illustratively, the capsule diameter is about 0.4 mm to about 10.0 mm, about 0.8 mm to about 6.0 mm, about 2.5 mm to about 5.5 mm, or about 2.8 mm to about 3.2 mm. It can be within the range. In some cases, the capsule can have a diameter of about 3.0 mm. These sizes are particularly suitable for incorporating capsules into the articles described herein.

In some embodiments, the cross-sectional area of the capsule 11 at the location of its maximum cross-sectional area is less than 28%, more preferably less than 27%, of the cross-sectional area of the portion of the mouthpiece 2'' in which the capsule 11 is provided; Even more preferably less than 25%. For example, for a spherical capsule with a diameter of 3.0 mm, the maximum cross-sectional area of the capsule is 7.07 ^mm2 . With a circumference of 21 mm as described herein For the mouthpiece 2'', the material body 6 has an outer circumference of 20.8 mm and the radius of this component is 3.31 mm, corresponding to a cross-sectional area of 34.43 ^mm2 . The cross-sectional area of the capsule is, in this example, 20.5% of the cross-sectional area of the mouthpiece 2". As another example, if the capsule had a diameter of 3.2 mm, its maximum cross-sectional area would be 8.04 mm. ^2. In this case, the cross-sectional area of the capsule should be 23.4% of the cross-sectional area of the material body 6. Less than 28% of the cross-sectional area of the section reduces the pressure drop across the mouthpiece 2" when compared to capsules with larger cross-sectional areas, allowing sufficient space around the capsule for aerosol to pass through. The remaining material body 6 has the advantage of not removing large amounts of aerosol mass when passing through the mouthpiece 2''.

Preferably, when the capsule is ruptured, the pressure drop or pressure differential (also referred to as suction resistance) across the article, measured as the opening pressure drop (i.e., with the vent opening open), decreases by less than 8 mm _H2O . More preferably, the opening pressure drop decreases by less than 6 mm _H2O , more preferably less than 5 mm _H2O . These values are measured as the average achieved by at least 80 articles made with the same design. Such small changes in pressure drop, whether or not the consumer chooses to destroy the capsule, will influence other aspects of product design, such as setting the correct level of ventilation for a given product pressure drop. It means that it can be realized.

For a given tow specification (e.g. 8.4Y21000), it is known to generate a tow performance curve representing the pressure drop over the length of the rod formed using the tow for each of a wide range of tow weights. It is being Parameters such as rod length and circumference, web thickness, and tow plasticizer level are specified and these are combined with tow specifications to generate a tow performance curve that is Figure 2 shows the pressure drop that would be provided by different tow weights between the minimum and maximum weights achievable using a rod forming machine. Such tow performance curves can be calculated using, for example, software available from the tow supplier. A body 6 of material comprising a filament tow having a weight per mm of length of the body 6 of about 10% to about 30% of the range between the minimum weight and maximum weight of the tow performance curve generated for the filament tow. It has been found to be particularly advantageous to use This provides sufficient tow weight to avoid shrinkage after the material body 6 is formed, and provides an acceptable pressure drop for capsules within the tow for capsules of the sizes described herein. Placement can also provide an acceptable balance to support.

In some embodiments, when the aerosol-generating material 3 is heated to deliver an aerosol, such as in the non-flammable aerosol delivery devices described herein, the portion of the mouthpiece 2 in which the capsule is disposed may be During use, temperatures of 58-70 degrees Celsius are reached and produce aerosols. As a result of this temperature, the capsule contents are sufficiently warmed to facilitate volatilization of the capsule contents, such as an aerosol modifier, into the aerosol formed by the system when the aerosol passes through the mouthpiece 2. Warming of the contents of the capsule 11 can be done, for example, before the capsule 11 is broken, so that when the capsule 11 is broken, the contents of the capsule 11 are more easily passed into the aerosol passing through the mouthpiece 2. will be released. Alternatively, the contents of the capsule 11 can be warmed to this temperature after the capsule 11 is broken, again increasing the release of the contents into the aerosol. The mouthpiece temperature in the range of 58 to 70 degrees Celsius is sufficiently high to allow the capsule contents to be released more easily, but the outer surface of the part of the mouthpiece 2 where the capsule is placed is Advantageously, it has been found that the temperature is low enough to not reach a temperature that is uncomfortable for the consumer to touch in order to rupture the capsule 11 by tightening the capsule 11.

The temperature of the part of the mouthpiece 2 where the capsule 11 is located can be measured using a digital thermometer with an intrusion probe, the probe of which penetrates the mouthpiece 2 through the wall of the mouthpiece 2. 2 (forming a seal to limit the amount of outside air that can leak from around the probe into the mouthpiece) and is positioned so as to be located proximate to the location of the capsule 11. Similarly, a temperature probe can be placed on the outer surface of the mouthpiece 2 in order to measure the temperature of the outer surface.

Table 1.0 below shows the temperature at the location of the capsule in the mouthpiece 2 of the article used in the aerosol delivery system during the first five puffs. Data is provided for articles heated using a "standard" heating profile using the coil heating devices described herein with reference to FIGS. 3-7, and for "boost" heating using the same device. provided for the same article heated using the profile. A "boost" heating profile is selectable by the user and allows higher heating temperatures to be achieved.

As shown in Table 1.0, the temperature of the mouthpiece 2 at the location of the capsule 11 reaches a maximum temperature of 61.5 °C under the "Standard" heating profile and 63.8 °C under the "Boost" heating profile. reach maximum temperature. A maximum temperature within the range of 58° C. to 70° C., preferably within the range of 59° C. to 65° C., more preferably within the range of 60° C. to 65° C., is achieved while maintaining a suitable external surface temperature of the mouthpiece 2. It has been found to be particularly advantageous in assisting in the volatilization of the contents of.

カプセル１１は、マウスピース２に印加される外力によって、たとえば消費者が指又は他の機構を使用してマウスピース２を締め付けることによって破壊可能である。上述したように、マウスピースのうちカプセルが配置された部分は、エアロゾル供給システムの使用中に５８℃より大きい温度に到達してエアロゾルを生成するように配置される。エアロゾル生成材料３の加熱前のマウスピース２内に配置されたカプセル１１の破裂強度は、１５００～４０００グラムの力であることが好ましい。エアロゾルの生成のためのエアロゾル供給システムの使用から３０秒以内のマウスピース２内に配置されたカプセル１１の破裂強度は、１０００～４０００グラムの力であることが好ましい。したがって、５８℃を上回る温度、たとえば５８℃～７０℃の温度にさらされるかどうかにかかわらず、カプセル１１は、破裂強度を維持することが可能であり、この破裂強度の範囲内では、カプセル１１が破壊されたという十分な触覚フィードバックを消費者に提供しながら、カプセル１１を消費者によって容易に破砕可能とすることが可能になることが判明した。そのような破裂強度を維持することは、本明細書に記載するように、たとえばアラビアガム、ゲランガム、アカシアガム、キサンタンガム、又はカラギーナンを単独又はゼラチンとの組合せで含む多糖など、カプセルに対して適当なゲル化剤を選択することによって実現される。加えて、カプセルシェルにとって好適な壁厚さが選択されるべきである。

The capsule 11 is breakable by an external force applied to the mouthpiece 2, for example by the consumer tightening the mouthpiece 2 using a finger or other mechanism. As mentioned above, the portion of the mouthpiece in which the capsule is disposed is arranged to reach a temperature greater than 58° C. and generate an aerosol during use of the aerosol delivery system. The bursting strength of the capsule 11 placed in the mouthpiece 2 before heating the aerosol-generating material 3 is preferably between 1500 and 4000 grams force. Preferably, the bursting strength of the capsule 11 placed within the mouthpiece 2 within 30 seconds of use of the aerosol delivery system for the generation of an aerosol is between 1000 and 4000 grams of force. Therefore, whether or not the capsule 11 is exposed to temperatures above 58°C, for example between 58°C and 70°C, the capsule 11 is able to maintain its burst strength, and within this range of burst strength, the capsule 11 It has been found that it becomes possible to make the capsule 11 easily crushable by the consumer while providing the consumer with sufficient tactile feedback that the capsule 11 has been broken. Maintaining such burst strength can be achieved by using suitable materials for the capsule, such as polysaccharides, such as gum arabic, gellan, acacia, xanthan gum, or carrageenan alone or in combination with gelatin, as described herein. This is achieved by selecting a suitable gelling agent. In addition, a suitable wall thickness for the capsule shell should be selected.

Suitably, the burst strength of the capsules placed in the mouthpiece before heating the aerosol-generating material is between 2000 and 3500 grams by weight or between 2500 and 3500 grams by weight. Suitably, the burst strength of the capsules placed in the mouthpiece within 30 seconds of use of the system for the generation of an aerosol is between 1500 and 4000 grams by weight or between 1750 and 3000 grams by weight. In one example, the average burst strength of capsules placed within the mouthpiece prior to heating of the aerosol-generating material is approximately 3175 grams by weight, and when placed within the mouthpiece within 30 seconds of use of the system for aerosol generation. The average burst strength of the capsules was approximately 2345 grams by weight.

The burst strength of capsules can be tested using a force measuring device such as a Texture Analyser. For these burst strengths, Type TA. Using the XTPlus Texture Analyser, a circular metal probe with a diameter of 6 mm was placed at the center of the capsule site (ie 12 mm from the mouth end of mouthpiece 2). The test speed of the probe was 0.3 mm/sec, with a pre-test speed of 5.00 mm/sec and a post-test speed of 10 mm/sec. The force used was 5000g. The tested articles were smoked using standard test equipment using a Borgwaldt A14 syringe drive unit, according to the well-known Health Canada smoking regime (55 ml puff applied over 2 seconds every 30 seconds). I was sucked in. Three puffs were performed using this puffing method, and the capsule burst strength was measured within 30 seconds of the third puff. The tested article was provided with an 8 mm hollow tubular element 8 at the end formed of two layers of paper laminated together, each paper wrapped in parallel and abutting at the seams, with a total thickness of 300 μm. The capsule was a 3 mm diameter capsule with a tow specification of 9.5Y12,000 and a target of 9. % triacetin plasticizer was placed within a body of 8 mm long cellulose acetate tow.

The barrier material can include one or more of a gelling agent, a filler, a buffer, a colorant, and a plasticizer.

Suitably, the gelling agent can be, for example, a polysaccharide or cellulose gelling agent, gelatin, gum, gel, wax, or mixtures thereof. Suitable polysaccharides include alginic acid, dextran, maltodextrin, cyclodextrin, and pectin. Suitable alginic acids include, for example, alginate, ester alginic acid, or glyceryl alginate. Alginates include ammonium alginate, triethanolamine alginate, and Group I or Group II alginate metal ions such as sodium, potassium, calcium, and magnesium alginate. Ester-type alginic acid includes propylene glycol alginate and glyceryl alginate. In one embodiment, the barrier material includes sodium alginate and/or calcium alginate. Suitable cellulosic materials include methylcellulose, ethylcellulose, hydroxyethylcellulose, hydroxypropylcellulose, carboxymethylcellulose, cellulose acetate, and cellulose ethers. The gelling agent can include one or more modified starches. Gelling agents can include carrageenan. Suitable gums include agar, gellan gum, gum arabic, pullulan gum, mannan gum, gati gum, gum tragacanth, karaya, locust bean, gum acacia, guar, quince seed, and xanthan gum. Suitable gels include agar, agarose, carrageenan, fucoidan, and farcellan. Suitable waxes include carnauba wax. In some cases, gelling agents may include carrageenan and/or gellan gum, such that the pressure required to break the resulting capsules is particularly favorable. It is particularly suitable for inclusion as a gelling agent.

The barrier material can include one or more bulking agents such as starch, modified starch (such as oxidized starch), and sugar alcohols such as maltitol.

The barrier material can include a colorant that makes locating the capsule within the aerosol-generating device easier during the manufacturing process of the aerosol-generating device. Preferably, the colorant is selected among dyes and pigments.

The barrier material can further include at least one buffering agent such as a citrate or phosphate compound.

The barrier material can further include at least one plasticizer, the plasticizer being glycerol, sorbitol, maltitol, triacetin, polyethylene glycol, propylene glycol, or another polyalcohol with plasticizing properties, and optionally Acids can be of the mono-, dia-, or tri-acid-base type, especially citric acid, fumaric acid, malic acid, and the like. The amount of plasticizer ranges from 1 to 30%, preferably from 2 to 15%, even more preferably from 3 to 10% by weight of the total dry weight of the shell.

The barrier material may also include one or more filler materials. Suitable filler materials include starch derivatives such as dextrins, maltodextrins, cyclodextrins (α, β, or γ), or hydroxypropylmethylcellulose (HPMC), hydroxypropylcellulose (HPC), methylcellulose (MC), carboxymethylcellulose ( CMC), polyvinyl alcohol, polyols, or mixtures thereof. Dextrin is a preferred filler. The amount of filler in the shell is at most 98.5%, preferably 25-95%, more preferably 40-80%, even more preferably 50-60% by weight of the total dry weight of the shell. be.

The capsule shell can further include a hydrophobic outer layer that reduces the susceptibility of the capsule to moisture-induced degradation. The hydrophobic outer layer may include waxes, particularly carnauba wax, candelilla wax, or beeswax, carbowax, shellac (in alcoholic or aqueous solution), ethylcellulose, hydroxypropylmethylcellulose, hydroxylpropylcellulose, latex compositions, polyvinyl alcohol, or combinations thereof. Preferably, it is selected from the group comprising: More preferably, the at least one moisture barrier agent is ethylcellulose or a mixture of ethylcellulose and shellac.

The capsule core contains an aerosol modifier. The aerosol modifier can be any volatile substance that modifies at least one property of the aerosol. For example, an aerosol material can be modified in pH, sensory properties, moisture content, delivery characteristics, or fragrance. In some cases, aerosol modifiers can be selected from acids, bases, water, or flavorants. In some embodiments, the aerosol modifier includes one or more flavorants.

The flavoring agent may be a mint flavor from any species of Mentha, such as licorice, rose oil, vanilla, lemon oil, orange oil, peppermint oil and/or spearmint oil, preferably menthol, and/or mint oil, or lavender. , fennel, or anise.

In some cases, the flavoring agent includes menthol.

In some cases, the capsules contain at least about 25% w/w flavoring (based on the total weight of the capsule), preferably at least about 30% w/w flavoring, 35% w/w flavoring, It can include 40% w/w flavor, 45% w/w flavor, or 50% w/w flavor.

In some cases, the core contains at least about 25% w/w flavoring (based on the total weight of the core), preferably at least about 30% w/w flavoring, 35% w/w flavoring, It can include 40% w/w flavor, 45% w/w flavor, or 50% w/w flavor. In some cases, the core contains up to about 75% w/w flavoring (based on the total weight of the core), preferably up to about 65% w/w flavoring, up to 55% w/w flavoring. , or up to 50% w/w flavoring. Illustratively, the capsule contains flavoring in an amount within the range of 25-75% w/w (based on the total weight of the core), about 35-60% w/w, or about 40-55% w/w. can include.

The capsule contains at least about 2 mg, 3 mg, or 4 mg of aerosol modifier, preferably at least about 4.5 mg of aerosol modifier, 5 mg of aerosol modifier, 5.5 mg of aerosol modifier, or 6 mg of aerosol modifier. can be included.

In some cases, the consumable includes at least about 7 mg of aerosol modifier, preferably at least about 8 mg of aerosol modifier, 10 mg of aerosol modifier, 12 mg of aerosol modifier, or 15 mg of aerosol modifier. The core can also include a solvent that dissolves the aerosol modifier.

Any suitable solvent can be used.

If the aerosol modifier includes a flavoring agent, suitably the solvent may include short or medium chain fats and oils. For example, the solvent may include a triester of glycerol, such as a C2-C12 triglyceride, preferably a C6-C10 triglyceride, or a Cs-C12 triglyceride. For example, the solvent can include medium chain triglycerides (MCT-C8-C12) that can be derived from palm oil and/or coconut oil.

Esters can be formed with caprylic acid and/or capric acid. For example, the solvent can include medium chain triglycerides such as glyceryl tricaprylate and/or glyceryl tricaprate. For example, the solvent can include compounds identified by CAS registration numbers 73398-61-5, 65381-09-1, 85409-09-2. Such medium chain triglycerides are odorless and tasteless.

The hydrophilic lipophilic balance (HLB) of the solvent may be in the range 9-13, preferably 10-12. The method of making capsules involves coextrusion, optionally followed by centrifugation and hardening and/or drying. The contents of WO 2007/010407 are incorporated by reference in their entirety.

In the examples described above, the mouthpieces 2, 2', 2'' each comprise a single body of material 6. In other examples, the mouthpieces of FIGS. The mouthpiece 2, 2', 2'' may include cavities between the material bodies.

In some examples, the mouthpiece 2, 2', 2'' downstream of the aerosol-generating material 3 may be provided with a web, such as a first plug wrap 7 or a second plug wrap 9, or tipping paper 5. , the web includes an aerosol modifier or other sensate material as described herein. The aerosol modifier can be disposed on the inward or outward facing surface of the mouthpiece web. For example, the aerosol modifier or Other sensate materials may be provided in the area of the web that contacts the consumer's lips during use, such as the outward facing surface of tipping paper 5. Aerosol modifiers or By disposing the other sensate material, the aerosol modifier or other sensate material can be transferred to the consumer's lips during use. Delivery of the sensate material may modify the organoleptic properties (e.g., taste) of the aerosol produced by the aerosol-generating substrate 3, or may otherwise provide an alternative sensory experience to the consumer. For example, an aerosol modifier or other sensate material can impart a flavor to the aerosol produced by the aerosol-generating substrate 3. The aerosol modifier or other sensate material can be transmitted to the user by the consumer's saliva. The aerosol modifier or other sensate material may be volatilized by the heat generated by the aerosol delivery system, thereby making the aerosol-generating substrate 3 Suitable sensate materials can be fragrances, sucralose, or coolants such as menthol, as described herein.

The non-flammable aerosol delivery device is used to heat the aerosol-generating material 3 of the article 1, 1', 1'' described herein. The non-flammable aerosol delivery device, compared to other configurations, It is preferred to include a coil as it has been found to allow improved heat transfer to 1, 1', 1''.

In some examples, the coil is configured to cause heating of the at least one conductive heating element during use, such that thermal energy can be conducted from the at least one conductive heating element to the aerosol-generating material, thereby generating an aerosol. Causes heating of production material.

In some examples, the coil is configured to generate a varying magnetic field that penetrates the at least one heating element during use, thereby causing inductive heating and/or magnetic hysteresis heating of the at least one heating element. In such a configuration, the or each heating element may be referred to as a "susceptor" as defined herein. A coil configured to generate a varying magnetic field that penetrates at least one conductive heating element during use, thereby causing inductive heating of the at least one conductive heating element, is referred to as an "induction coil" or "inductor coil". be able to.

The device may include a heating element(s), such as a conductive heating element(s), the heating element(s) being configured to enable such heating of the heating element(s). Preferably, it can be arranged or arranged relative to the coil. The heating element(s) may be in a fixed position relative to the coil. Alternatively, at least one heating element, such as at least one conductive heating element, can be included within the article 1, 1', 1'' to be inserted into the heating section of the device, the article 1, 1', 1'' is also equipped with an aerosol-generating material 3, which can be removed from the heating section after use. Alternatively, both the device and such article 1, 1', 1'' can be provided with at least one respective heating element, such as at least one electrically conductive heating element, the coil being arranged so that the article is within the heating section. may be for causing heating of the heating element(s) of each of the devices and articles when the heating element(s) of each of the devices and articles is present.

In some examples, the coil is helical. In some examples, the coil surrounds at least a portion of the heating section of the device configured to receive the aerosol-generating material. In some examples, the coil is a helical coil surrounding at least a portion of the heating section.

In some examples, the device includes a conductive heating element that at least partially surrounds the heating section, and the coil is a helical coil that surrounds at least a portion of the conductive heating element. In some examples, the conductive heating element is tubular. In some examples, the coil is an inductor coil.

In some instances, the use of coils allows non-flammable aerosol delivery devices to reach operating temperature more quickly than non-coil aerosol delivery devices. For example, a non-flammable aerosol delivery device comprising a coil as described above reaches operating temperature such that it can provide a first puff in less than 30 seconds, more preferably less than 25 seconds from the start of the device heating program. can do. In some examples, the device can reach operating temperature in about 20 seconds from the start of the device heating program.

It has been found that the use of the coils described herein in a device to cause heating of the aerosol-generating material enhances the resulting aerosol. For example, consumers may find that aerosols produced by devices containing coils, such as those described herein, are more likely to be used in factory-made cigarette (FMC) products than aerosols obtained by other non-flammable aerosol delivery systems. They report that it is intuitively close to what is generated. Without wishing to be bound by theory, this suggests that the time to reach the required heating temperature is reduced when the coil is used, and that the heating achievable when the coil is used This may be a result of the higher temperatures and/or the coils allowing such systems to simultaneously heat a relatively large volume of aerosol-generating material, such that the aerosol temperature is similar to the FMC aerosol temperature. It is assumed that In FMC products, the burning coal creates a hot aerosol that heats the tobacco in the tobacco rod behind the coal as the aerosol is drawn through the rod. This hot aerosol is understood to release flavor compounds from the tobacco in the rod behind the burning coal. It is contemplated that devices including coils as described herein may also be capable of heating aerosol-generating materials, such as tobacco materials as described herein, to release flavor compounds, such that the aerosol is It is reported to be more similar to FMC aerosol. Certain improvements in aerosolization may be achieved by using a device including a coil to heat an article comprising a rod of aerosol-generating material having a circumference greater than 19 mm, such as from about 19 mm to about 23 mm. can.

By using an aerosol delivery system that includes a coil as described herein, such as an induction coil that heats at least a portion of the aerosol-generating material to at least 200°C, more preferably at least 220°C, properties more similar to those of FMC products can be obtained. It may be possible to generate an aerosol from an aerosol-generating material that has certain properties that are believed to have specific properties. For example, when using an induction heater to heat an aerosol-generating material containing nicotine that has been heated to at least 250 °C under an air flow of at least 1.50 L/m during this period for a period of 2 seconds, the following characteristics One or more of these are observed.

At least 10 μg of nicotine is aerosolized from the aerosol-generating material.

The aerosol-forming material has a weight ratio of aerosol to nicotine of at least about 2.5:1, preferably at least 8.5:1.

At least 100 μg of aerosol-forming material can be aerosolized from the aerosol-forming material.

The average particle or droplet size within the generated aerosol is less than about 1000 nm.

Aerosol density is at least 0.1 μg/cc.

In some cases, at least 10 μg of nicotine, preferably at least 30 μg or 40 μg of nicotine, is aerosolized from the aerosol-generating material under an air flow of at least 1.50 L/m during the period. In some cases, less than about 200 μg, preferably less than about 150 μg, or less than about 125 μg of nicotine is aerosolized from the aerosol-generating material under an air flow of at least 1.50 L/m during the period.

In some cases, at least 100 μg of aerosol-forming material, preferably at least 200 μg, 500 μg, or 1 mg of aerosol-forming material is aerosolized from the aerosol-forming material under an air flow of at least 1.50 L/m during a period of time. Suitably, the aerosol-forming material may comprise or consist of glycerol.

As defined herein, the term "average particle or droplet size" refers to the average size of the solid or liquid component of an aerosol (ie, the component suspended in the gas). When an aerosol contains suspended liquid droplets and suspended solid particles, the term refers to the average size of all components combined.

In some cases, the average particle or droplet size within the generated aerosol can be about 900 nm, 800 nm, 700 nm, 600 nm, 500 nm, 450 nm, or less than 400 nm. In some cases, the average particle or droplet size can be greater than about 25 nm, 50 nm, or 100 nm.

In some cases, the aerosol density generated during the period is at least 0.1 μg/cc. In some cases, the aerosol density is at least 0.2 μg/cc, 0.3 μg/cc, or 0.4 μg/cc. In some cases, the aerosol density is less than about 2.5 μg/cc, 2.0 μg/cc, 1.5 μg/cc, or 1.0 μg/cc.

Preferably, the non-flammable aerosol delivery device is arranged to heat the aerosol-generating material 3 of the article 1, 1', 1'' to a maximum temperature of at least 160°C. At least once during the heating process by the device, the aerosol-forming material 3 of the article 1, 1', 1'' is heated to a maximum temperature of at least about 200°C, or at least about 220°C, or at least about 240°C, more preferably at least about 270°C. Preferably, the heating is performed to

Using an aerosol delivery system including a coil as described herein, such as an induction coil that heats at least a portion of the aerosol-generating material to at least 200°C, more preferably at least 220°C, the aerosol is may enable the generation of an aerosol from the aerosol-generating material within the articles 1, 1', 1'' described herein that have a higher temperature when leaving the mouth end of the article 1, 1', 1'' than previous devices. , which can contribute to the generation of aerosols that are considered to be more similar to FMC products. For example, the maximum aerosol temperature measured at the mouth end of the article 1, 1', 1'' is preferably greater than 50°C, more preferably greater than 55°C, and even more preferably greater than 56°C or 57°C. Additionally or alternatively, the maximum aerosol temperature measured at the mouth end of the article 1, 1', 1'' may be less than 62°C, more preferably less than 60°C, more preferably less than 59°C. can. In some embodiments, the maximum aerosol temperature measured at the mouth end of the article 1, 1', 1'' may preferably be between 50°C and 62°C, more preferably between 56°C and 60°C.

Figure 4 shows an example of a non-flammable aerosol delivery device 100 for producing an aerosol from an aerosol-generating medium/material, such as the aerosol-generating material 3 of the articles 1, 1', 1'' described herein. , the device 100 is used to heat an exchangeable article 110 comprising an aerosol-generating medium, such as articles 1, 1', 1'' described herein, to generate an aerosol or other material that is inhaled by a user of the device 100. can produce an inhalable medium. Device 100 and replaceable article 110 together form a system.

Device 100 includes a housing 102 (in the form of an outer cover) that surrounds and houses the various components of device 100. Device 100 has an opening 104 at one end through which an article 110 can be inserted for heating by the heating assembly. In use, article 110 can be fully or partially inserted into a heating assembly, where it can be heated by one or more components of the heater assembly.

The device 100 in this example includes a first end member 106 that is connected to the first end member 106 to close the opening 104 when the article 110 is not in place. A movable lid 108 is provided. Although lid 108 is shown in an open configuration in FIG. 4, lid 108 can also be moved to a closed configuration. For example, the user can slide lid 108 in the direction of arrow "B".

Device 100 may also include a user-operable control element 112, such as a button or switch, that when pressed causes device 100 to operate. For example, a user can turn on device 100 by operating switch 112.

Device 100 may also include electrical components such as a socket/port 114 that can receive a cable to charge the battery of device 100. For example, socket 114 may be a charging port, such as a USB charging port.

FIG. 5 shows the device 100 of FIG. 4 with the outer cover 102 removed and the article 110 absent. Device 100 defines a longitudinal axis 134.

As shown in FIG. 5, first end member 106 is located at one end of device 100 and second end member 116 is located at an opposite end of device 100. First end member 106 and second end member 116 together at least partially define an end surface of device 100. For example, the bottom surface of second end member 116 at least partially defines the bottom surface of device 100. The edges of the outer cover 102 can also define a portion of the end surface. In this example, lid 108 also defines a portion of the top surface of device 100.

The end of the device closest to opening 104 can be referred to as the proximal end (or oral end) of device 100, as it will be closest to the user's mouth in use. In use, a user inserts article 110 into opening 104 and operates user controls 112 to initiate heating of the aerosol-generating material and inhale the aerosol generated within the device. This causes the aerosol to flow along the flow path through the device 100 towards the proximal end of the device 100.

The other end of the device furthest from the opening 104 can be referred to as the distal end of the device 100 because, in use, it is the end furthest from the user's mouth. When a user inhales the aerosol generated within the device, the aerosol flows away from the distal end of the device 100.

Device 100 further includes a power source 118. Power source 118 may be a battery, such as a rechargeable battery or a non-rechargeable battery, for example. Examples of suitable batteries include, for example, lithium batteries (such as lithium ion batteries), nickel batteries (such as nickel cadmium batteries), and alkaline batteries. A battery is electrically coupled to the heating assembly to provide power to heat the aerosol-generating material when needed and under control of a controller (not shown). In this example, the battery is connected to a central support 120 that holds the battery 118 in place.

The device further comprises at least one electronic module 122. Electronic module 122 may include, for example, a printed circuit board (PCB). PCB 122 can support at least one controller, such as a processor, and memory. PCB 122 may also include one or more electrical tracks for electrically connecting together the various electronic components of device 100. For example, battery terminals can be electrically connected to PCB 122 so that power can be distributed throughout device 100. Socket 114 may also be electrically coupled to a battery via an electrical track.

In the exemplary device 100, the heating assembly is an induction heating assembly and includes various components for heating the aerosol-generating material of the article 110 by an induction heating process. Induction heating is the process of heating electrical conductors (such as susceptors) by electromagnetic induction. An induction heating assembly may include an inductive element, such as one or more inductor coils, and a device for passing a varying current, such as an alternating current, through the inductive element. The fluctuating current in the inductive element produces a fluctuating magnetic field. The varying magnetic field penetrates a susceptor suitably positioned relative to the induction element and creates eddy currents within the susceptor. The susceptor has an electrical resistance to eddy currents and therefore, due to the flow of eddy currents against this resistance, the susceptor is heated by Joule heating. If the susceptor comprises a ferromagnetic material such as iron, nickel, or cobalt, magnetic hysteresis losses within the susceptor, i.e., due to variations in the orientation of magnetic dipoles within the magnetic material as a result of alignment with a varying magnetic field, It can also generate heat. In induction heating, heat is generated within the susceptor, which allows rapid heating, compared to heating by conduction, for example. Furthermore, no physical contact between the induction heater and the susceptor is required, allowing further freedom in terms of construction and application.

The induction heating assembly of exemplary device 100 includes a susceptor arrangement 132 (referred to herein as a “susceptor”), a first inductor coil 124, and a second inductor coil 126. First inductor coil 124 and second inductor coil 126 are made from electrically conductive material. In this example, first inductor coil 124 and second inductor coil 126 are made from helically wound litz wire/cable to provide helical inductor coils 124, 126. Litz wire includes a plurality of individual wires that are individually insulated and twisted together to form a single wire. Litz wire is designed to reduce skin effect losses in the conductor. In the exemplary device 100, the first inductor coil 124 and the second inductor coil 126 are made from copper litz wire with a square cross section. In other examples, the litz wire can have a cross-section of other shapes, such as circular.

The first inductor coil 124 is configured to generate a first varying magnetic field for heating the first section of the susceptor 132 and the second inductor coil 126 is configured to heat the second section of the susceptor 132. The second varying magnetic field is configured to generate a second varying magnetic field. In this example, first inductor coil 124 is adjacent to second inductor coil 126 in the direction of longitudinal axis 134 of device 100 (i.e., first inductor coil 124 and second inductor coil 126 are not overlap). Susceptor arrangement 132 can include a single susceptor or two or more separate susceptors. Ends 130 of the first inductor coil 124 and the second inductor coil 126 may be connected to the PCB 122.

It will be appreciated that in some examples, first inductor coil 124 and second inductor coil 126 can have at least one characteristic that is different from each other. For example, first inductor coil 124 can have at least one characteristic that is different than second inductor coil 126. More specifically, in one example, first inductor coil 124 may have a different inductance value than second inductor coil 126. In FIG. 5, the first inductor coil 124 and the second inductor coil 126 are of different lengths such that the first inductor coil 124 is wound on a smaller section of the susceptor 132 than the second inductor coil 126. . Thus, first inductor coil 124 may include a different number of turns than second inductor coil 126 (assuming the spacing between individual turns is substantially the same). In yet another example, first inductor coil 124 may be made from a different material than second inductor coil 126. In some examples, first inductor coil 124 and second inductor coil 126 can be substantially the same.

In this example, first inductor coil 124 and second inductor coil 126 are wound in opposite directions. This may be useful when the inductor coils are activated at different times. For example, first inductor coil 124 may be operated first to heat a first section/portion of article 110 and later second inductor coil 126 may be operated to heat a second section/portion of article 110. / part can be heated. Winding the coil in opposite directions helps reduce the current induced in the inactive coil when used with certain types of control circuits. In FIG. 5, the first inductor coil 124 is a right-handed helix and the second inductor coil 126 is a left-handed helix. However, in other embodiments, the inductor coils 124, 126 can be wound in the same direction, or the first inductor coil 124 can be a left-handed helix and the second inductor coil 126 can be a right-handed helix. It can also be done.

Susceptor 132 in this example is hollow, thus defining a receptacle in which the aerosol-generating material is received. For example, article 110 can be inserted into susceptor 132. In this example, susceptor 120 is tubular and has a circular cross section.

Susceptor 132 can be made from one or more materials. Susceptor 132 preferably comprises carbon steel and has a nickel or cobalt coating.

In some examples, the susceptor 132 can include at least two materials, and the two materials can be heated at two different frequencies for selective aerosolization of the at least two materials. be. For example, a first section of susceptor 132 (heated by first inductor coil 124) can include a first material, and a second section of susceptor 132 (heated by second inductor coil 126) can include a first material. can include a second different material. In another example, the first section can include first and second materials, and the first and second materials heat differently based on operation of the first inductor coil 124. be able to. The first and second materials can be adjacent along the axis defined by the susceptor 132 or can form different layers within the susceptor 132. Similarly, the second section can include a third and fourth material, and the third and fourth materials can heat differently based on the operation of the second inductor coil 126. can. The third and fourth materials can be adjacent along the axis defined by the susceptor 132 or can form different layers within the susceptor 132. For example, the third material can be the same as the first material and the fourth material can be the same as the second material. Alternatively, each of these materials may be different. The susceptor can include carbon steel or aluminum, for example.

Device 100 of FIG. 5 further includes insulating member 128, which can be generally tubular and can at least partially surround susceptor 132. Device 100 of FIG. Insulating member 128 may be constructed from any insulating material, such as plastic. In this particular example, the insulating member is constructed from polyetheretherketone (PEEK). Insulating member 128 can help insulate various components of device 100 from heat generated within susceptor 132.

Insulating member 128 may also fully or partially support first inductor coil 124 and second inductor coil 126. For example, as shown in FIG. 5, first inductor coil 124 and second inductor coil 126 are disposed about insulating member 128 and contact a radially outwardly facing surface of insulating member 128. In some examples, insulating member 128 does not abut first inductor coil 124 and second inductor coil 126. For example, a slight gap may exist between the outer surface of the insulating member 128 and the inner surfaces of the first inductor coil 124 and the second inductor coil 126.

In particular examples, susceptor 132, insulating member 128, and first and second inductor coils 124, 126 are coaxial about a central longitudinal axis of susceptor 132.

FIG. 6 shows a partially cross-sectional side view of device 100. In this example, an outer cover 102 is present. The rectangular cross-sectional shapes of the first inductor coil 124 and the second inductor coil 126 can be seen more clearly.

Device 100 further includes a support 136 for engaging one end of susceptor 132 to hold susceptor 132 in place. Support 136 is connected to second end member 116.

The device may also include a second printed circuit board 138 associated within the control element 112.

Device 100 further includes a second lid/cap 140 and a spring 142 located at the distal end of device 100. Spring 142 allows second lid 140 to be opened to provide access to susceptor 132. A user can open second lid 140 to clean susceptor 132 and/or support 136.

Device 100 further includes an expansion chamber 144 extending away from the proximal end of susceptor 132 and toward opening 104 of the device. A retention clip 146 is at least partially disposed within the expansion chamber 144 to retain against the article 110 when received within the device 100. Expansion chamber 144 is connected to end member 106.

FIG. 7 is an exploded view of device 100 of FIG. 6, with outer cover 102 omitted.

8A shows a cross-sectional view of a portion of device 100 of FIG. 6. FIG. FIG. 8B shows an enlarged view of a region of FIG. 8A. 8A and 8B show an article 110 received within a susceptor 132, the article 110 being dimensioned such that the outer surface of the article 110 abuts the inner surface of the susceptor 132. This ensures that the heating is most efficient. Article 110 in this example comprises an aerosol-generating material 110a. Aerosol generating material 110a is disposed within susceptor 132. Article 110 may also include other components such as filters, packaging materials, and/or cooling structures.

FIG. 8B shows that the outer surface of the susceptor 132 is spaced from the inner surfaces of the inductor coils 124, 126 by a distance 150 measured in a direction perpendicular to the longitudinal axis 158 of the susceptor 132. In one particular example, distance 150 is about 3 mm to 4 mm, about 3 to 3.5 mm, or about 3.25 mm.

FIG. 8B further illustrates that the outer surface of the insulating member 128 is spaced from the inner surfaces of the inductor coils 124, 126 by a distance 152 measured in a direction perpendicular to the longitudinal axis 158 of the susceptor 132. In one particular example, distance 152 is approximately 0.05 mm. In another example, distance 152 is substantially 0 mm such that inductor coils 124, 126 are in abutting contact with insulating member 128.

In one example, susceptor 132 has a wall thickness 154 of about 0.025 mm to 1 mm, or about 0.05 mm.

In one example, susceptor 132 has a length of about 40 mm to 60 mm, about 40 mm to 45 mm, or about 44.5 mm.

In one example, insulating member 128 has a wall thickness 156 of about 0.25 mm to 2 mm, 0.25 mm to 1 mm, or about 0.5 mm.

In use, the articles 1, 1', 1'' described herein can be inserted into a non-flammable aerosol delivery device, such as the device 100 described with reference to FIGS. 3-7. Article 1, 1', 1'' mouthpiece 2, 2', 2'' protrudes from the non-flammable aerosol delivery device 100 and can be placed into the user's mouth. It is generated by heating the aerosol-generating material 3. The aerosol generated by the aerosol-generating material 3 passes through the mouthpiece 2 and reaches the user's mouth.

When the article 1, 1', 1'' is inserted into the device 100, the minimum distance between one or more components of the heater assembly and the tubular element of the article 1, 1', 1'' is between 3 mm and It may be within 10 mm, for example 3 mm, 4 mm, 5 mm, 6 mm, 7 mm, 8 mm, 9 mm, or 10 mm.

The articles 1, 1', 1'' described herein have particular advantages when used with non-flammable aerosol delivery devices, such as the device 100 described with reference to FIGS. 3-7. In particular, it has surprisingly been found that the first tubular element 4 formed from filament tow has a significant influence on the temperature of the outer surface of the mouthpiece 2 of the article 1, 1', 1''. For example, if a hollow tubular element 8 formed from a filament tow is rolled into an outer web, e.g. tipping paper 5, the outer surface of the outer web at a longitudinal position corresponding to the point of the hollow tubular element 8 is It has been found that a maximum temperature of less than 42°C, preferably less than 40°C, more preferably less than 38°C or less than 36°C is reached.

Table 2.0 below shows the external surface of the article 1 described herein with reference to FIG. 1 when heated using the device 100 described herein with reference to FIGS. 3-7. indicates the temperature of First, second and third temperature measuring probes were used at corresponding first, second and third positions along the mouthpiece 2 of the article 1. The first position (denoted as position 1 in Table 2.0) is 4 mm away from the downstream end 2b of the mouthpiece 2, and the second position (denoted as position 2 in Table 2.0) is located 4 mm from the downstream end 2b of the mouthpiece 2. The third position (indicated as position 3 in Table 2.0) is 12 mm from the downstream end 2b of the mouthpiece 2.

Therefore, the first position is on the outer surface of the part of the mouthpiece 2 where the first tubular element 4 is arranged, and the second and third positions are on the outer surface of the part of the mouthpiece 2 where the material body 6 is arranged. on the outer surface of the part.

The control article was tested in comparison with the filament tow tubular element 4 described herein, and instead of the filament tow tubular element 4 it had the same structure as the second hollow tubular element 8 described herein, but A well-known helically wound paper tube of 6 mm length was used instead of 25 mm.

The test was performed for the first five puffs on the article so that the approximate maximum temperature could be observed, as the fifth puff generally peaks the temperature and begins to drop. Each sample was tested five times and the temperatures provided are the average of these five tests. Standard test equipment was used to apply the well-known Health Canada smoking regime (55 ml puffs applied over 2 seconds every 30 seconds).

As shown in the table below, surprisingly, using the tubular element 4 formed from filament tow, the mouthpiece 2 It was found that the external temperature decreased. The tubular element 4 formed from filament tow was particularly effective in reducing the temperature at the first probe location where the consumer's lips are located when using the article 1. In particular, the temperature of the outer surface of the mouthpiece 2 at the first probe position decreased by more than 7°C during the first three puffs and by more than 5°C during the fourth and fifth puffs.

図９は、不燃式エアロゾル供給システムで使用するための物品を製造する方法を示す。この場合、この方法は、２つのそのような物品の形成を伴う。

FIG. 9 shows a method of manufacturing an article for use in a non-flammable aerosol delivery system. In this case, the method involves the formation of two such articles.

In step S101, the walls of at least one tubular section 4 or at least one body of material 6 are applied with an aerosol-generating material. If the tubular part 4 or the material body 6 is to be located at the mouth end of the final mouthpiece, a single element can be provided, which can be cut in two in step S105. . If not, two elements should be provided so that there is one element per final mouthpiece. In step S102 a mouthpiece rod comprising at least one tubular portion 4 or body of material is formed.

In step S103, first and second aerosol-generating material portions each including an aerosol-forming material are placed adjacent to respective first and second longitudinal ends of the mouthpiece rod. For example, the hollow tubular element rod can comprise a double length first hollow tubular element 8 arranged between the first and second respective bodies of material 6 . At the outer end of each body of material 6 a tubular section 4 is arranged, and adjacent to the outer ends of these tubular sections 4 first and second aerosol-generating material sections are arranged. The mouthpiece rod is wrapped in a second plug wrap as described herein.

In step S104, first and second aerosol-generating material portions are connected to the mouthpiece rod. In this example, this is carried out by wrapping at least a portion of each of the mouthpiece rod and aerosol-generating material portion 3 with tipping paper 5 as described herein. In this example, the tipping paper 5 extends longitudinally about 5 mm over the outer surface of each of the aerosol-generating material portions 3.

In step S105, the mouthpiece is cut to form first and second articles, each article comprising a mouthpiece comprising at least one tubular portion or at least one body of material. For example, a first hollow tubular element 8 that is twice the length of the mouthpiece rod may be cut approximately one half way along its length to form a first and a second substantially identical form an article.

In some embodiments, a non-flammable aerosol delivery system is provided that includes an aerosol-modifying component and a heater, the heater configured to heat the aerosol-generating material such that, in use, the aerosol-generating material provides an aerosol. It is possible to operate. The aerosol modifying component includes first and second capsules. The first capsule is disposed in a first portion of the aerosol modifying component and the second capsule is disposed in a second portion of the aerosol modifying component located downstream of the first portion.

A first portion of the aerosol modifying component is heated to a first temperature during operation of the heater to produce an aerosol, and a second portion is heated to a second temperature during operation of the heater. An aerosol is generated and the second temperature is at least 4 degrees Celsius lower than the first temperature. Preferably, the second temperature is at least 5, 6, 7, 8, 9, or 10 degrees Celsius lower than the first temperature.

The aerosol modifying component can comprise one or more components of the article. In some embodiments, the aerosol-modifying component comprises a body of material, and the first and second capsules are disposed within the body of material. The body of material can include cellulose acetate. In another embodiment, the aerosol modifying component comprises two bodies of material, and the first and second capsules are disposed within the first and second bodies of material, respectively. In some embodiments, the aerosol modifying component alternatively or additionally comprises one or more tubular elements upstream and/or downstream of the one or more bodies of material. The aerosol generating component can include a mouthpiece.

In some embodiments, the second capsule is spaced apart from the first capsule by a distance of at least 7 mm, measured as the distance between the center of the first capsule and the center of the second capsule. Preferably, the second capsule is spaced from the first capsule by a distance of at least 8, 9 or 10 mm. It has been found that by increasing the distance between the first and second capsules, the difference between the first and second temperatures also increases.

The first capsule contains an aerosol modifier. The second capsule also includes an aerosol modifier, and the aerosol modifier in the second capsule may be the same as or different from the aerosol modifier in the first capsule. In some embodiments, a user can selectively rupture the first and second capsules to release the aerosol modifying agent from each capsule by applying an external force to the aerosol modifying component.

The aerosol modifier in the second capsule is heated to a lower temperature than the aerosol modifier in the first capsule due to the difference between the first and second temperatures.

The aerosol modifiers for the first and second capsules can be selected based on this temperature difference. For example, a first capsule can include a first aerosol modifier that has a lower vapor pressure than a second aerosol modifier in a second capsule. If the capsules are both heated to the same temperature, the higher vapor pressure of the aerosol modifier in the second capsule means that a larger amount of the aerosol modifier in the second capsule will be generated compared to the aerosol modifier in the first capsule. should mean that it evaporates. However, this effect is less pronounced because the second capsule is heated to a lower temperature, and therefore when the first and second capsules are destroyed, a more uniform amount of the first and second The aerosol modifier in the capsule evaporates.

In some embodiments, the first and second capsules have the same aerosol modification profile because both capsules contain the same type of aerosol modification agent in the same amount and therefore both capsules have the same aerosol modification profile. This means that both capsules should cause the same denaturation of the aerosol if they are heated to the same temperature and destroyed. However, because the first capsule is heated to a higher temperature than the second capsule, more of the aerosol modifier in the first capsule volatilizes and therefore in the first capsule compared to, for example, the modifier in the second capsule. 2 causes more pronounced aerosol denaturation than capsules. Therefore, even though both capsules are the same, thereby making the production of the aerosol-modifying component easier and/or cheaper, the user may destroy the first capsule to obtain more Determining whether to cause significant aerosol denaturation, or destroy a second capsule to cause less significant aerosol denaturation, or rupture both capsules to cause the most significant aerosol denaturation. I can do it.

In some embodiments, the first and second capsules both include first and second aerosol modifiers. The first aerosol modifier has a lower vapor pressure than the second aerosol modifier. Therefore, when the second capsule is broken, it is larger for the first aerosol modifier compared to when the first capsule, which is hotter during use of the system to generate an aerosol, is broken. A proportion of the second aerosol modifier evaporates. Thus, the same capsule can be used to produce different modifications of the aerosol based on the position of the capsule within the first or second part of the aerosol modification component.

The various embodiments described herein are presented solely to assist in understanding and teaching the claimed features. These embodiments are provided as a representative sample of embodiments only and are not exhaustive and/or exclusive. The advantages, embodiments, examples, features, features, structures, and/or other aspects described herein are limitations on the scope of the invention as defined by the claims, or equivalents of the claims. It should be understood that other embodiments may be utilized and modifications may be made without departing from the scope of the claimed invention. Various embodiments of the invention may include suitable combinations of disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein, and such Preferably, it may consist of a combination or consist essentially of such a combination. In addition, this disclosure may include other inventions not claimed herein but that may be claimed in the future.

Claims (38)

An article for use in a nonflammable aerosol delivery system, comprising:
a first aerosol-generating material;
a component downstream of the first aerosol-generating material, the component comprising a tubular portion, the tubular portion comprising a wall containing a second aerosol-generating material , and the tubular portion comprising a paper tube. An article comprising a hollow tubular element formed as a hollow tubular element, wherein the second aerosol-generating material comprises a sheet material adhered to an inner surface of the tubular portion . The article of claim 1, wherein the component comprises a body of material. 3. An article according to claim 1 or 2 , wherein the tubular portion is located at the downstream end of the component. 3. An article according to claim 1 or 2 , wherein the tubular portion is located at the upstream end of the component. An article according to any preceding claim, wherein the second aerosol-generating material is located on the inner wall of the tubular portion. An article according to any preceding claim, wherein the tubular portion defines a cavity within the component. 7. The article of claim 6 , wherein the cavity has an internal volume of greater than 450 mm ^<3> . An article according to any preceding claim, wherein the hollow tubular element is a first hollow tubular element and the article further comprises a second hollow tubular element. 9. The article of claim 8 , wherein the second hollow tubular element is formed from filament tow. 9. The article of claim 8 , wherein the second hollow tubular element is formed as a paper tube. At least one of the first and second hollow tubular elements has a particle size of 0.25 g/cc to 0.75 g/cc, or 0.25 g/cc to 0.65 g/cc, or 0.35 g/cc to 0. 11. An article according to claim 8, 9 or 10 , formed from a material having a density of .65 g/cc. An article according to any one of claims 8 to 11 , wherein at least one of the first and second hollow tubular elements comprises an internal diameter of greater than 3.0 mm, or an inner diameter of greater than 3.5 mm. An article according to any one of claims 8 to 12 , wherein at least one of the first and second hollow tubular elements comprises a minimum wall thickness of greater than 0.9 mm. An article according to any one of claims 8 to 13 , wherein the second hollow tubular element is located at the opposite end of the component from the first hollow tubular element. 15. According to any one of claims 8 to 14 , the component further comprises a cylindrical body of material arranged between the first hollow tubular element and the second hollow tubular element. goods. 16. An article according to any one of claims 8 to 15 , wherein the second hollow tubular element comprises a length of greater than about 10 mm or greater than about 12 mm. 3. An article according to claim 1 or 2 , wherein the paper tube is formed from at least two layers of paper. 18. The article of claim 17 , wherein the at least two layers of paper each include an abutment seam. 19. An article according to claim 17 or 18 , wherein the at least two layers of paper are concentrically wrapped. Any of claims 17 to 19 , wherein the total thickness of the paper tube is within the range of about 50 micrometers to about 500 micrometers, about 100 micrometers to about 400 micrometers, or about 200 micrometers to about 350 micrometers. Articles listed in item (1) above. 3. The article of claim 2 , wherein the body of material is cylindrical and formed from filament tow. the filament tow has a weight per mm of length of the body of material that is about 10% to about 30% of the range between the minimum weight and maximum weight of the tow performance curve generated for the filament tow; The article according to claim 21 . 23. Article according to any one of the preceding claims, wherein the second aerosol-generating material comprises a flavoring agent and/or an amorphous solid. 24. An article according to any preceding claim, wherein the second aerosol-generating material comprises microcapsules. 25. The article of claim 24 , wherein the microcapsules contain an aerosol-forming additive. 26. The article of claim 25 , wherein the microcapsules are configured to release the aerosol-forming additive upon application of heat. 27. An article according to any preceding claim, wherein the component comprises a vent. The level of ventilation to said component is less than 50%, or in the range of 45% to 65% of the volume of aerosol passing through said component, or between 40% and 60% of the volume of aerosol passing through said component. 28. The article of claim 27 . 29. An article according to claim 27 or 28 , wherein the ventilation is provided by a ventilation aperture into the tubular portion. An article according to any one of claims 27 to 29 , wherein the ventilation is provided by an essentially porous material. The second aerosol generating material is glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, mesoerythritol, ethyl vanillate, ethyl laurate, diethyl suberate, Claims 1-30 comprising an aerosol-forming material comprising at least one of triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate . Articles described in any one of the following. 32. The second aerosol-generating material comprises an amount of the aerosol-forming material of at least 10%, or at least 15%, or at least 20% by weight of the second aerosol-generating material . goods. 33. An article according to any preceding claim, wherein the first aerosol-generating material is wrapped by a web having a permeability level of greater than about 2000 Coresta units. 34. A method of forming an article according to any preceding claim, comprising adhering the sheet material to the inner surface of the tubular portion . The article according to any one of claims 1 to 33 ,
A nonflammable aerosol supply system comprising a nonflammable aerosol supply device. 36. The non-flammable aerosol delivery system of claim 35, wherein the non-flammable aerosol delivery device comprises a heater. 36. The system is configured such that the minimum distance between the heater and the tubular portion of the article is at least about 3 mm when the article is inserted into the non-flammable aerosol delivery device. Non-flammable aerosol delivery system as described in . The article further comprises an aerosol-modifying component, and the heater is operable to heat the first aerosol-generating material such that, in use, the first aerosol-generating material provides an aerosol. wherein the aerosol-modifying component is located downstream of the aerosol-generating material, the aerosol-modifying component is located within a first portion of the aerosol-modifying component, and the aerosol-modifying component is located within a first portion of the aerosol-modifying component; a first capsule, the first portion of which is heated to a first temperature during operation of the heater to produce the aerosol; and a first capsule of the aerosol modifying component located downstream of the first portion. a second capsule located within a portion of the second portion, the second portion being heated to a second temperature during operation of the heater to generate an aerosol, the second temperature being 38. A non-flammable aerosol delivery system according to claim 36 or 37 , wherein the non-flammable aerosol delivery system is at least 4 degrees Celsius below the first temperature.

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