Plug including combustion suppression additive, and use of the same

Abstract

To provide an article used in a non-combustion type aerosol supply system.SOLUTION: There is provided an article 1 used in a non-combustion type aerosol supply system, the article comprising a plug 7 which includes a combustion suppression additive. There are also provided a method for producing the article and a use method of the article.SELECTED DRAWING: Figure 1

Description

Field

[0001] The present invention relates to an article for use in a non-combustible aerosol supply system, the article comprising a plug containing a combustion suppressant additive. The present invention further relates to a method of manufacturing and a method of using said article. Background

[0002] Smoking articles such as cigarettes and cigars create tobacco smoke by burning tobacco during use. Attempts have been made to provide alternatives to these articles by creating products that release compounds without burning. Examples of such products are so-called "non-combustion heating type" products or tobacco heating devices or products that release compounds by heating but not burning the smoking material. Summary

[0003] According to a first aspect disclosed herein, there is provided an article for use in a non-combustible aerosol supply system, the article comprising: a rod containing an aerosol-forming material; and a plug containing a combustion suppressant additive.

[0004] In some embodiments, the plug containing the combustion suppressant additive is at the distal end of the article.

[0005] In some embodiments, the plug containing the combustion suppressant additive is adjacent to the rod of aerosol-forming material.

[0006] In some embodiments, the plug containing the combustion suppressant additive is in contact with the rod of aerosol-forming material.

[0007] In some embodiments, the combustion suppressant additive is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.

[0008] In some embodiments, the plug is formed from a sheet material. In some embodiments, the sheet material is paper or a paper-like material.

[0009] In some embodiments, the sheet material comprises an amorphous solid material.

[0010] In some embodiments, the combustion suppressant additive is incorporated into the sheet material.

[0011] In some embodiments, the combustion suppressant additive is applied to a coating on the surface of the sheet material.

[0012] In some embodiments, the plug comprises a mass of amorphous solid material.

[0013] In some embodiments, the combustion suppressant additive is incorporated into the amorphous solid material. In some embodiments, the amorphous solid material comprises about 3 wt% to about 60 wt% of a combustion suppressant salt (on a dry weight basis).

[0014] In some embodiments, the combustion suppressant additive is applied to a coating on the surface of the plug.

[0015] In some embodiments, the coating comprises about 3 wt% to about 70 wt% of at least one combustion suppressant additive (on a dry weight basis).

[0016] In some embodiments, the coating comprises a binder. In some embodiments, the binder is selected from one or more of the group consisting of polyvinyl alcohol (PVA), gelatin, rubbers, acacia rubber, starch, polysaccharides, pectin, alginate, wood pulp, cellulose, and cellulose derivatives such as carboxymethyl cellulose.

[0017] In some embodiments, the coating comprises about 10 wt% to about 97 wt% of at least one binder.

[0018] In some embodiments, the article comprises a heating material.

[0019] In some embodiments, the heating material is heatable by penetration using a variable magnetic field to heat the aerosol-forming material.

[0020] In some embodiments, the heating material is in contact with the aerosol - forming material.

[0021] In some embodiments, the heating material is in contact with a plug containing a combustion - suppressing additive.

[0022] In some embodiments, the aerosol - forming material comprises one or more of tobacco itself, tobacco derivatives, expanded tobacco, reclaimed tobacco, tobacco extracts, homogenized tobacco, or tobacco substitutes.

[0023] In some embodiments, the aerosol - forming material is in the form of shredded tobacco, cut - rag tobacco, extruded tobacco, reclaimed tobacco, reclaimed smoking articles, liquids, gels, gelled sheets, powders, or agglomerates.

[0024] In some embodiments, the aerosol - forming material comprises non - tobacco materials.

[0025] In some embodiments, the plug containing a combustion - suppressing additive exhibits a pressure drop of about 5 to about 40 mmWG.

[0026] In some embodiments, the plug containing a combustion - suppressing additive has a bulk density between about 0.1 and about 0.3 mg / mm 3 and.

[0027] According to a second aspect disclosed herein, there is provided a non - combustible aerosol supply system comprising an article according to the first aspect.

[0028] According to a third aspect disclosed herein, there is provided a method of manufacturing an article according to the first aspect, wherein a combustion - suppressing additive is incorporated into or applied to the surface of a plug, and the plug is incorporated into an article having a rod of aerosol - forming material.

[0029] In some embodiments, the plug is incorporated at the distal end of the article.

[0030] In some embodiments, the method includes collecting one or more sheets on a rod, wrapping the rod, and cutting it into separate sections to form plugs.

[0031] In some embodiments, the method includes crimping the sheet before collecting the sheet on the rod.

[0032] In some embodiments, the method includes collecting a sheet around a former and forming a hole through the plug.

[0033] In some embodiments, the method includes applying a coating containing a combustion suppressant additive to the surface of the sheet material.

[0034] In some embodiments, the method includes applying a coating containing a combustion suppressant additive to the surface of the plug.

[0035] In some embodiments, the coating is formed by applying a precursor material containing a binder and a combustion suppressant additive to the surface.

[0036] In some embodiments, the coating is applied to the surface using one or more processes selected from the group consisting of spraying, coating, or printing.

[0037] According to a fourth aspect disclosed herein, there is provided the use of a combustion suppressant additive for suppressing the combustion of a plug in an article for use in a non-combustible aerosol supply system.

[0038] According to a fifth aspect disclosed herein, there is provided a plug for use in an article for use in a non-combustible aerosol supply system, the plug containing a combustion suppressant additive.

[0039] In some embodiments, the plug contains a combustible material.

[0040] In some embodiments, the plug comprises one or more sheets of paper or paper-like material.

[0041] In some embodiments, the plug comprises a body of amorphous solid material.

[0042] In some embodiments, the plug has resistance to combustion when exposed to temperatures up to 300 °C.

[0043] Embodiments of the present invention are described herein by way of example only with reference to the accompanying drawings.

Brief Description of the Drawings

[0044]

Figure 1

Figure 2

[0045] The present invention seeks to provide an article for use in a non-combustible aerosol supply system. The article comprises a rod of aerosol-generating material and a plug containing a combustion suppressant additive.

[0046] In some embodiments, the article typically has a downstream end that connects to or includes a mouthpiece and / or a filter, and an upstream end, also referred to as a distal end. In some embodiments, the article comprises a plug containing a combustion suppressant additive at the distal end of the article. Alternatively or additionally, the plug containing the combustion suppressant additive may be at a different location within the article.

[0047] The distal end plug can help prevent the aerosol-generating material from being lost from the distal end of the article.

[0048] In some embodiments, a plug containing a combustion suppressant additive is adjacent to a rod of aerosol - generating material. In some embodiments, a plug containing a combustion suppressant additive is in contact with the aerosol - generating material.

[0049] In some embodiments, when the article is in a non - combustible aerosol supply system during use, the heating element or heating material may be in contact with the article or may be embedded within the article. In some configurations, the heating element or heating material can expose a plug containing a combustion suppressant additive to a high temperature. In some embodiments, a plug containing a combustion suppressant additive is adjacent to the heating element or heating material. In some embodiments, a plug containing a combustion suppressant additive is in contact with the heating element or heating material.

[0050] Thus, it is desirable for the plug to be reliably resistant to combustion. If the plug is formed from a material that can burn or degrade upon exposure to high temperatures, one or more combustion suppressant additives are added to prevent such combustion and / or degradation.

[0051] Advantageously, a plug containing a combustion suppressant additive can be formed from a non - plastic material, such as a cellulosic material like paper or a sheet material containing an amorphous solid.

[0052] The inventors have found that by adding at least one combustion suppressant additive to the plug, combustion - suppressing properties are imparted. The presence of a plug containing a combustion suppressant additive makes it even more difficult to light the article and prevents the article from burning.

[0053] The present invention enjoys the advantage that the article can withstand higher temperatures without burning and can then release more volatile substances. This is desirable for the end - user of a non - combustible aerosol supply system. Additionally, the present invention has the added advantage of being safer because it reduces the combustion of the article if a consumer attempts to ignite it.

[0054] In addition, the plugs disclosed herein provide alternatives that take into account the environment for currently used other plugs, which may include, for example, cellulose acetate or other plastic materials.

[0055] As described herein, the combustion suppression characteristics can be achieved using salts such as NaCl, which are sustainable and available resources. In addition, the plug may include, as described herein, paper or paper-like materials, or amorphous solid materials. These materials can be sustainably supplied and are biodegradable. The biodegradability of the package is environmentally considerate and an attractive feature for consumers.

[0056] The plug can have an axial length, for example, of about 5 mm to about 20 mm, such as about 5 mm to about 15 mm or about 5 mm to about 12 mm.

[0057] The plug can have a circumference of about 17 mm to about 25 mm, such as about 19 mm to about 24 mm or about 20 mm to about 23 mm.

[0058] The pressure drop across the plug can be at least about 5 mmWG, at least about 7 mmWG, at least about 10 mmWG, at least about 12 mmWG, or at least about 15 mmWG. Alternatively or additionally, the pressure drop across the plug can be less than about 60 mmWG, less than about 50 mmWG, or less than about 40 mmWG. For example, the pressure drop across the plug can be in the range of 10 - 50 mmWG, such as 12 - 40 mmWG or 15 - 30 mmWG. In some embodiments, a plug containing a combustion suppression additive can exhibit a pressure drop of about 12 - about 40 mmWG.

[0059] In some embodiments, the pressure drop across the plug is at least about 1 mmWG per 1 mm of the axial length of the plug, such as at least about 1.2, 1.5, 1.8, or 2 mmWG per 1 mm of the axial length of the plug. In some embodiments, the pressure drop across the plug is less than about 4 mmWG per 1 mm of the axial length of the plug, such as less than about 3.5, 3.2, 3, or 2.5 mmWG per 1 mm of the axial length of the plug. For example, the pressure drop across the plug can be in the range of 1.0 - 4.0, or 1.5 - 3.5, or 2.0 - 3.0 mmWG per 1 mm of the axial length of the plug.

[0060] The plug has a bulk density of at least about 0.05 mg / mm 3 such as at least about 0.07 mg / mm 3 at least about 0.1 mg / mm 3 or at least about 0.12 mg / mm 3 and can have a bulk density. Alternatively or additionally, the plug can have a bulk density of less than about 0.3 mg / mm 3 less than about 0.27 mg / mm 3 less than about 0.25 mg / mm 3 For example, the plug can have a bulk density between about 0.05 - about 0.35 mg / mm 3 between about 0.1 - about 0.3 mg / mm 3 between about 0.15 - about 0.25 mg / mm 3 The plug can have a bulk density of about 0.2 mg / mm 3 and can have a bulk density.

[0061] Plug body In some embodiments, the plug is formed from biodegradable and sustainable materials. In some embodiments, a plug containing a combustion suppressant additive does not include materials that are considered to be plastic materials, such as bioplastics such as cellulose acetate.

[0062] In some embodiments, a plug containing a combustion suppressant additive is formed from a sheet material. In particular, the plug may be at least partially formed from a collected sheet, or a collected and crimped sheet. A plug containing a combustion suppressant additive may also be formed by cutting the sheet material into longitudinal strips, collecting it, and making it into a rod.

[0063] In some embodiments, the plug may be formed from a combination of a sheet material containing a combustion suppressant additive and a sheet material without the additive.

[0064] In some embodiments, the sheet material includes a cellulosic material. In some embodiments, the cellulosic material constitutes at least 20%, 30%, 40%, or 50% of the sheet material.

[0065] In some embodiments, the sheet may include or consist essentially of paper or paper-like material. The paper or paper-like material can be between about 20 gsm and about 150 gsm, or between about 20 gsm and about 120 gsm. In some embodiments, the paper or paper-like material can be between about 25 gsm and about 35 gsm, or between about 55 gsm and 65 gsm.

[0066] In some embodiments, the sheet material may be formed from a plant material including a tobacco material. For example, the sheet material may be a recycled tobacco material, or a similar material formed from other types of plants or plant materials.

[0067] In some embodiments, a plug containing a combustion suppressant additive is formed from a fibrous material. In some embodiments, the fibrous material is a non-plastic material. For example, the plug is not formed from cellulose acetate. The combustion suppressant additive may be added to the fibrous material before the plug is formed. Alternatively or additionally, the combustion suppressant additive may be added to the fibrous material after the plug is formed. For example, the combustion suppressant additive may be added to one or more surfaces of the plug.

[0068] In some embodiments, for example, when the plug is formed from a sheet material such as a cellulose-based material like paper, the aerosol modifier described herein and / or the aerosol-forming material described herein is included in the plug. In some embodiments, the aerosol modifier and / or the aerosol-forming material may be applied to the material forming the plug before the plug is formed. Alternatively or additionally, the aerosol modifier and / or the aerosol-forming material may be applied to the formed plug.

[0069] The aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate. At least 0.02 mg of the aerosol-forming material per 1 mm of the axial length of the plug, for example at least 0.03, 0.04 or 0.05 mg of the aerosol-forming material per 1 mm of the axial length of the plug, may be applied to the plug. Less than 0.5 mg, for example less than 0.4 mg, less than 0.3 mg, less than 0.2 mg, or less than 0.1 mg of the aerosol-forming material per 1 mm of the axial length of the plug may be applied to the plug. For example, between about 0.02 and 0.5 mg, or between about 0.05 mg and about 0.4 mg of the aerosol-forming material per 1 mm of the axial length of the plug may be applied to the plug. For example, between about 0.02 and 0.5 mg, or between about 0.05 mg and about 0.4 mg of glycerin or propylene glycol per 1 mm of the axial length of the plug may be applied to the plug.

[0070] In some embodiments, the plug containing the combustion suppressant additive is alternatively formed from an "amorphous solid material", which may also be referred to as "integrated solid" (i.e., non-fibrous). In some embodiments, the amorphous solid material may be a dry gel. An amorphous solid is a solid material that can hold some fluid, such as a liquid, within it.

[0071] The amorphous solid material may contain from about 0.1 wt%, 0.5 wt%, 1 wt%, 5 wt%, 10 wt%, 15 wt%, 20 wt% or 25 wt% to about 60 wt%, 50 wt%, 45 wt%, 40 wt% or 35 wt% of a gelling agent (all calculated on a dry weight basis). For example, the amorphous solid may contain 1 - 50 wt%, 5 - 45 wt%, 10 - 40 wt% or 20 - 35 wt% of a gelling agent. In some embodiments, the gelling agent includes a hydrophilic colloid.

[0072] In some embodiments, the gelling agent includes one or more compounds selected from the group consisting of polysaccharides such as alginate, pectin, starch (and derivatives), and cellulose (and derivatives); rubbers, silica or silicone compounds; clays; polyvinyl alcohol; and combinations thereof. For example, in some embodiments, the gelling agent includes one or more of alginate, pectin, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, pullulan, chitosan, xanthan gum, guar gum, carrageenan, agarose, acacia gum, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the gelling agent includes alginate and / or pectin and may be combined with a curing agent (such as a calcium source) during the formation of the amorphous solid. In some cases, the amorphous solid may include calcium-crosslinked alginate and / or calcium-crosslinked pectin.

[0073] In some embodiments, the gelling agent includes alginate. In one embodiment, the alginate is present in the amorphous solid in an amount of 1 to 30 wt% (calculated on a dry weight basis) of the amorphous solid. In some embodiments, the alginate is the only gelling agent present in the amorphous solid. In other embodiments, the gelling agent includes at least one additional gelling agent such as alginate and pectin.

[0074] In some embodiments, the plug including the combustion suppressant additive may include an amorphous solid that may include a gelling agent including carrageenan.

[0075] Preferably, the amorphous solid may include an aerosol-forming material of at least about 0.1 wt%, 0.5 wt%, 1 wt%, 3 wt%, 5 wt%, 7 wt%, 10 wt%, 15 wt%, 20 wt%, 25 wt%, 30 wt%, 35 wt% or 40%, and / or up to about 75 wt%, 70 wt%, 65 wt%, 60 wt%, 55 wt% or 50% (all calculated on a dry weight basis). For example, the amorphous solid may include 5 to 10 wt%, 20 to 70 wt%, 40 to 60 wt% or 50 to 60 wt% of the aerosol-forming material.

[0076] As used herein, the aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0077] In some cases, the aerosol-forming material comprises one or more compounds selected from erythritol, propylene glycol, glycerol, vegetable glycerin (VG), triacetin, sorbitol, and xylitol. In some cases, the aerosol-forming material comprises glycerol, consists essentially of glycerol, or consists of glycerol.

[0078] The aerosol-forming material can act as a plasticizer. For example, the amorphous solid material can comprise from 0.5 to 40 wt%, from 3 to 35 wt%, or from 10 to 25 wt% of the aerosol-forming material. In some cases, the aerosol-forming material comprises one or more compounds selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol, and xylitol. In some cases, the aerosol-forming material comprises glycerol, consists essentially of glycerol, or consists of glycerol. The plasticizer content defined herein provides the flexibility of the amorphous solid that enables the amorphous solid sheet to be wound around a bobbin, which is useful in the manufacture of plugs contained in aerosol-generating articles.

[0079] In some embodiments, the amorphous solid material is a hydrogel and contains less than about 20 wt% water, calculated on a wet weight basis. In some cases, the hydrogel may contain less than about 15 wt%, 12 wt%, or 10 wt% water, calculated on a wet weight basis. In some cases, the hydrogel may contain at least about 1 wt%, 2 wt%, or at least about 5 wt% water (WWB).

[0080] In some embodiments, the plug comprising the combustion suppressant additive is formed from a sheet of the amorphous solid material. In particular, the plug can be formed from a collected sheet comprising the amorphous solid material, or a collected and crimped sheet. The plug may also be formed by cutting one or more sheets of the amorphous solid material into longitudinal strips, collecting them, and making them into a rod.

[0081] In other embodiments, the plug containing the combustion suppressant may be formed as a solid mass including an amorphous solid material. For example, the plug may be a cylindrical mass or part of the amorphous solid material.

[0082] In certain situations, specifically, when the plug is made of a relatively high-density material, or is tightly compressed, or is collected in a rod, the plug may restrict the air flow through it. To alleviate this, it is possible to provide perforations or holes. In some embodiments, the perforations or holes are provided downstream of the plug containing the combustion suppressant in the article, such that air can be drawn through the perforations into the consumable, into the aerosol-forming material. Alternatively or in addition, holes or perforations may be provided such that air can be drawn into the consumable through the plug containing the combustion suppressant.

[0083] Combustion inhibitor additive The combustion suppressant is an additive that can reduce the tendency of the plug to burn when exposed to high temperatures when added to or incorporated into the plug.

[0084] The combustion suppressant may be added to the plug before, during, or after the plug is formed or assembled. Thus, for example, the combustion suppressant may be added to or incorporated into the material from which the plug is formed.

[0085] In some embodiments, the combustion suppressant is added to or applied to the sheet material used to form the plug. The combustion suppressant may be incorporated into the sheet material, for example, during the manufacture of the sheet material. Alternatively or additionally, the combustion suppressant may be applied to the sheet material, for example, in the form of a coating containing the additive, as discussed in more detail below.

[0086] In some embodiments, the combustion suppressant additive is added to or applied to the amorphous solid material used to form the plug. The combustion suppressant additive may be incorporated into the amorphous solid material, for example, during the manufacture of the amorphous solid material. Alternatively or additionally, the combustion suppressant additive may be applied to the amorphous solid material whether it is in the form of a sheet or a mass. For example, the combustion suppressant additive may be added to a coating applied to the surface of the amorphous solid material, as will be discussed in more detail below.

[0087] In some embodiments, a plug containing a combustion suppressant additive comprises one or more combustion suppressant additives in a total amount of at least about 3 wt%, about 3.5 wt%, about 4 wt%, about 4.5 wt%, about 5 wt%, about 5.5 wt%, about 6 wt%, about 6.5 wt%, about 7 wt%, about 7.5 wt%, about 8 wt%, about 9 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 40 wt%, about 50 wt%, about 60 wt%, about 70 wt% of the plug, and / or in an amount of about 70 wt%, about 65 wt%, about 60 wt%, about 55 wt%, or about 50 wt% or less (all calculated on a dry weight basis). The amount of the combustion suppressant additive is selected to provide the desired combustion suppression effect.

[0088] In some embodiments, a coating on or in a plug containing a combustion suppressant additive comprises one or more combustion suppressant additives in a total amount of at least about 3 wt%, about 3.5 wt%, about 4 wt%, about 4.5 wt%, about 5 wt%, about 5.5 wt%, about 6 wt%, about 6.5 wt%, about 7 wt%, about 7.5 wt%, about 8 wt%, about 9 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 40 wt%, about 50 wt%, about 60 wt%, about 70 wt% of the coating, and / or in an amount of about 70 wt%, about 65 wt%, about 60 wt%, about 55 wt%, or about 50 wt% or less (all calculated on a dry weight basis). The amount of the combustion suppressant additive is selected to provide the desired combustion suppression effect.

[0089] To avoid any doubt, any reference to the amount of combustion suppressing salt in the plug is a reference to the amount of salt added and does not include salts that may be present in the plug without adding the combustion suppressing salts described herein.

[0090] The combustion suppressing salts used herein are compounds consisting of ionic assemblies of cations and anions. The salts used herein are salts in which their anions and / or their cations may be effective in suppressing combustion. In some embodiments, the salt is an inorganic salt.

[0091] In some embodiments, the salt is a halide salt, i.e., having a halide anion. In some embodiments, the salt is a chloride salt or a bromide salt. The presence of high concentrations of chloride or bromide has been shown to suppress combustion, as further discussed below.

[0092] In some embodiments, the salt may be an alkali metal salt, i.e., having an alkali metal cation. In some embodiments, the salt has an alkaline earth metal cation. In some embodiments, the salt has an iron cation such as a zinc cation, or a trivalent or divalent iron cation. In some embodiments, the salt has an ammonium cation or a phosphonium cation.

[0093] In some embodiments, the salt may be an alkali metal halide such as sodium chloride or potassium chloride. The salt may be an alkaline earth metal halide such as magnesium chloride or calcium chloride. The salt may be another metal halide such as zinc chloride or sodium bromide.

[0094] In some embodiments, the salt has a carboxylic acid anion. For example, the salt may be an alkali metal carboxylate such as potassium citrate, potassium succinate, potassium malate, potassium acetate, potassium tartrate, potassium oxalate, sodium citrate, sodium succinate, sodium acetate, or sodium malate.

[0095] In other embodiments, the salt has an anion selected from: borate anions, carbonate anions, phosphate anions, sulfate anions or sulfamate anions.

[0096] Factors that can affect the choice of salt include, for example, a melting point that is preferably at least 450 °C. In some embodiments, the salt is water-soluble. In some embodiments, the salt is selected to provide a desired pH to the material being added. In some embodiments, the salt does not significantly change the pH of the material.

[0097] In some embodiments, sodium chloride (NaCl) is the salt used. Packages with high chloride content have been demonstrated to be difficult to burn. Additionally, sodium chloride is neutral, highly soluble, and does not affect the pH of the package.

[0098] The combustion suppressant salt may be one salt disclosed herein or known in the art, or any number of salt combinations, and is referred to herein as the "combustion suppressant salt". The combustion suppressant salt(s) can advantageously be selected to impart desired characteristics to the combustion suppressant material.

[0099] In some embodiments, the combustion suppressant salt comprises, consists essentially of, or consists of sodium chloride, potassium chloride, sodium bromide, and / or potassium bromide.

[0100] Depending on the desired combustion suppression properties or other physical properties, the salt component may be in free base form, salt form, or as a complex, or as a solvate. The combustion suppressant salt may have any density and any crystal structure.

[0101] Binder In some embodiments, the combustion suppressant additive is added to the plug in the form of a coating that includes the combustion suppressant additive and a binder. The coating may be applied to the sheet material used to form the body of the plug. In some embodiments, the coating is applied to the sheet before it is collected to form the plug. In other embodiments, the coating is applied to the formed plug.

[0102] The binder may be a film-forming material that forms the base of the coating containing the combustion suppressant additive. The combustion suppressant additive may be disposed in or on the film formed from the binder. In some embodiments, as discussed in more detail below, salts are mixed with the binder and applied to the package.

[0103] The binder may adhere the combustion suppressant additive to the sheet material or the plug. The binder may also be used to adhere the sheet or the plug to itself and / or other components of the article.

[0104] Suitable binders include, for example, film-forming agents such as polyvinyl alcohol (PVA), gums such as gelatin and gum arabic, starches and their derivatives, polysaccharides, pectin, alginate, wood pulp, cellulose, cellulose derivatives such as carboxymethyl cellulose, silica or silicone compounds, clays, and combinations thereof. Suitable binders include, for example, one or more gelling agents such as alginate, pectin, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethyl cellulose, pullulan, chitosan, xanthan gum guar gum, carrageenan, agarose, gum arabic, fumed silica, PDMS, sodium silicate, kaolin, and polyvinyl alcohol. In some cases, the binder may include alginate and / or pectin, and the precursor material may further include a curing agent (such as a calcium source) that may assist in the formation of an amorphous solid. In some cases, the binder may include calcium-crosslinked alginate and / or calcium-crosslinked pectin.

[0105] In some embodiments, the coating comprises at least about 0.1 wt%, about 0.2 wt%, about 0.3 wt%, about 0.4 wt%, about 0.5 wt%, about 0.6 wt%, about 0.7 wt%, about 0.8 wt%, about 0.9 wt%, about 1 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 35 wt%, about 40 wt%, about 45 wt% or at least about 50 wt% of a binder (all calculated on a dry weight basis). Optionally, the coating comprises about 70 wt%, about 65 wt%, about 60 wt%, about 55 wt%, about 50 wt%, about 45 wt%, about 40 wt%, about 35 wt%, or about 30 wt% or less of a binder (all calculated on a dry weight basis).

[0106] Precursor material In some embodiments, the combustion suppressant is incorporated into or added to the precursor material used to form the coating.

[0107] In some embodiments, the combustion suppressant is suspended in the precursor material. In some embodiments, the combustion suppressant is optionally dissolved in the precursor material in the presence of a solvent. The solvent may be aqueous or an organic liquid and may be polar or non-polar depending on the material being dissolved and the degree of dissolution.

[0108] The precursor material may comprise about 3 wt%, about 3.5 wt%, about 4 wt%, about 4.5 wt%, about 5 wt%, about 5.5 wt%, about 6 wt%, about 6.5 wt%, about 7 wt%, about 7.5 wt%, about 8 wt%, about 9 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 40 wt%, or about 50 wt% of a combustion suppressant (all calculated on a dry weight basis).

[0109] The precursor material may comprise about 3 wt%, about 3.5 wt%, about 4 wt%, about 4.5 wt%, about 5 wt%, about 5.5 wt%, about 6 wt%, about 6.5 wt%, about 7 wt%, about 7.5 wt%, about 8 wt%, about 9 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 40 wt%, or about 50 wt% of a combustion suppressant salt (all calculated on a dry weight basis).

[0110] In some embodiments, the precursor material containing the combustion suppressant additive is applied to the surface of the sheet or plug. This deposits the combustion suppressant additive on the surface of the sheet or plug, resulting in a coating on the surface of the sheet or plug.

[0111] In some embodiments, the sheet or plug is in contact with a precursor material such as a solution or suspension containing the combustion suppressant additive. This technique can be used to form a coating containing the combustion suppressant additive on the surface or a part of the surface of the sheet or plug. In some embodiments, the precursor material may be sprayed, printed, coated onto the sheet or plug or applied locally by other means. This is advantageous as it can result in the formation of a coating of the combustion suppressant additive that is uniformly distributed across the sheet or plug. Some application methods such as spraying, printing, and coating can be more precise and can result in a localized coating or enable the application of a higher concentration of the combustion suppressant additive to the sheet or plug.

[0112] The sheet or package can be contacted multiple times with the precursor material containing the combustion suppressant additive to form one or more layers containing the combustion suppressant additive. In some embodiments, one layer may be dried before the next layer is applied. In some embodiments, the composition of the layers is different and may include other components such as different combustion suppressant additives and / or binders, for example. This can result in a specific combustion suppression profile or the different adhesion properties of the binders can be utilized. This process may also be repeated to provide the desired thickness of the layer of the combustion suppressant additive and / or the desired amount or concentration of the combustion suppressant additive, which is a further advantage. The additional thickness when the coating is applied to the sheet or plug can contribute to improving the structural rigidity or increasing its tensile strength.

[0113] In some embodiments, the precursor material and / or subsequent coating includes or is in the form of an amorphous solid, which may alternatively be referred to as an “integrated solid” (i.e., non-fibrous). In some embodiments, the precursor material or coating may be in the form of a dry gel. An amorphous solid is a solid material that can hold some fluid, such as a liquid, within it. The precursor material or coating in the form of an amorphous solid may include a binder consisting of at least one gelling agent described herein. The precursor material or coating including an amorphous solid enjoys the advantage of providing increased tensile strength and rigidity to the sheet or plug.

[0114] In some embodiments, the precursor material used to form one layer may be in the form of a liquid in one layer, and the precursor material used to form another layer may be in the form of a solid or an amorphous solid. In an exemplary embodiment, a precursor material in the form of a liquid and including a binder such as PVA may provide the first layer. The precursor material in the form of an amorphous solid may provide the second layer. The second layer may be in the form of a sheet. Such embodiments provide a sheet or plug to which an amorphous solid sheet is adhered via the first layer. The layer(s) may be disposed at specific portions of the sheet or plug, and thus locally provide the advantages of the form of an amorphous solid. The amorphous solid includes additional components described herein, and advantageously, the additional components may be locally provided to a portion of the sheet or plug.

[0115] The layer(s) may include the same combustion suppression additive or different combustion suppression additives. Additionally, the ratio of the combustion suppression additive in the precursor material is varied to provide desired properties to the layer(s) on the sheet or plug.

[0116] In some embodiments, a coating including a combustion suppression additive is applied to a portion of the sheet or plug, such as a patch or section of the sheet or plug. The coating may be applied to the inner surface and / or outer surface of the package.

[0117] In some embodiments, the coating is on the surface of a plug that is positioned adjacent to the aerosol - generating material in the article.

[0118] In another embodiment of the present invention, the precursor material may be applied in the form of a printed patch. In this embodiment, the precursor material may have properties adapted to this application method. For example, the precursor material may have a suitable viscosity or may contain a higher concentration of combustion - suppressing additives. The advantage of this application method is that the printed patch can be of an exact size, shape, and position on the sheet or plug, and the method provides a more controlled application of the salt to the sheet or plug. The printed patch may be disposed on a part or the whole of the sheet of the plug.

[0119] Components of the precursor material In some embodiments, the precursor material includes a binder and a combustion - suppressing additive.

[0120] In some cases, the precursor material includes at least about 0.1 wt%, about 1 wt%, about 10 wt%, about 20 wt%, about 30 wt%, about 35 wt%, about 40 wt%, about 45 wt%, or at least about 50 wt% of a binder (all calculated on a dry - weight basis). In some cases, the precursor material includes about 70 wt%, about 65 wt%, about 60 wt%, about 55 wt%, about 50 wt%, about 45 wt%, about 40 wt%, about 35 wt%, or about 30 wt% or less of a binder (all calculated on a dry - weight basis).

[0121] The precursor material may include an appropriate amount of binder to provide an advantageous viscosity. For example, the precursor material must be viscous enough to form a film and provide a coating having a desired thickness or other physical characteristics. However, if the viscosity of the precursor material is too high, the material may be difficult to apply to the sheet or plug.

[0122] In some embodiments, the precursor material comprising the binder provides adhesion quality to the precursor material. The precursor material can be a viscous composition having an adhesive or "paste-like" quality. In some embodiments, the precursor material, and the coating that follows it, can advantageously be used to fix a sheet or a plug in place.

[0123] In some embodiments, the precursor material includes one or more solvents. The solvent can be included to dissolve one or more components of the precursor material. Additionally or alternatively, the solvent can be included to control properties of the precursor material, such as the viscosity or drying behavior of the precursor material under certain conditions. The viscosity of the precursor material can be reduced, for example, to facilitate its application to the package while maintaining the desired binder and additive content.

[0124] The solvent can include one or more liquids including aqueous liquids and non-aqueous liquids. For example, the solvent can be selected from the group consisting of water (such as distilled water), benzyl alcohol, ethanol, methanol, triacetin, glycerol, propylene glycol, or combinations thereof. In some embodiments, the solvent is distilled water.

[0125] The solvent can advantageously be selected to be easily removed after applying the precursor material to the sheet or plug and to form a (dry) coating containing a combustion suppressant salt on the surface of the sheet or plug. In some embodiments, the solvent may be removed as a result of a processing step, as discussed in more detail below. In some embodiments, the liquid carrier is a volatile solvent that can advantageously be removed by evaporation.

[0126] Treatment of the precursor material The precursor material can be optionally processed so as to result in a coating when applied to the surface of a sheet or a plug. The processing may include steps such as drying, curing, crosslinking, heating of the alginate or polymer, or any other suitable processing. This provides the advantage that the coating can have properties different from those of the precursor material. For example, the precursor material may be liquid, but can become hard on the sheet or plug during the processing step, imparting suitable rigidity to the coating. In a further example, the precursor material may be "sticky" before processing, but after processing, it must not be sticky in order to prevent the sheet or plug from adhering unintentionally to the surface.

[0127] The precursor material may be processed differently at different locations of the sheet or plug. This provides the advantage that combustion suppressant additives and properties can be imparted to different sections of the sheet or plug.

[0128] In some embodiments, some components of the precursor material are removed, for example via evaporation, and the combustion suppressant additives (and other non-volatile components) remain deposited on the sheet or plug in the coating.

[0129] In some embodiments, the precursor material or components of the precursor material can remain in the coating formed on the sheet or plug, and can impart additional combustion suppression, flavor, fragrance, and / or physical characteristics to the coating.

[0130] In some embodiments, the precursor material is not processed and forms a coating without further processing.

[0131] Coating In some embodiments, the coating can have a thickness of from about 0.2 μm to about 50 μm. The coating can have a thickness of at least about 0.2 μm, about 0.3 μm, about 0.4 μm, about 0.5 μm, about 0.6 μm, about 0.7 μm, about 0.8 μm, about 0.9 μm, about 1 μm, about 2 μm, about 3 μm, about 4 μm, about 5 μm, about 10 μm, about 15 μm, about 20 μm, about 25 μm, about 30 μm. The coating can have a thickness of about 50 μm, about 45 μm, about 40 μm, about 35 μm, about 30 μm, about 25 μm, about 20 μm, about 15 μm, about 10 μm or about 5 μm or less.

[0132] The combustion suppressant additive coating may include two or more layers, and the coating thickness described herein refers to the total thickness of these layers. The coating may also contain other additives in addition to the combustion suppressant additive(s) disclosed herein. The coating may also be very thin and may lack consistency across the surface of the sheet or plug. The thickness of the coating can be selected to provide the desired combustion suppression characteristics and to impart satisfactory rigidity and structural integrity to the coated sheet.

[0133] The thickness of the coating of the combustion suppressant salt can be measured using a microscope such as a scanning electron microscope (SEM) known to those skilled in the art, or any other suitable technique known to those skilled in the art.

[0134] In some cases, the coating thickness may vary by about 25%, about 20%, about 15%, about 10%, about 5% or about 1% or less across the region. This has the advantage that the coated sheet has a consistent thickness and / or the plug formed from the coated sheet or having the coating has consistent dimensions, so that the plug can fit other components of the article, and as a result, the article can fit more easily into a non-combustible aerosol supply system.

[0135] In some embodiments of the present invention, only a part of the entire area of the sheet surface contained in the plug includes a coating containing a combustion inhibitor. In other embodiments, the entire surface of the sheet includes a coating containing a combustion inhibitor.

[0136] In an article comprising the coating described herein, a part of the plug facing or adjacent to the end of the rod of the aerosol-forming material may include a coating containing a combustion inhibitor. This embodiment enjoys the advantage of preventing the plug from burning when the aerosol-forming material or heating material disposed is heated to a high temperature.

[0137] Method The article described herein may be manufactured by a method in which a combustion inhibitor is incorporated into the plug or applied to the surface of the plug, and then the plug is incorporated into an article having a rod of aerosol-forming material.

[0138] In some embodiments, the plug is incorporated at the distal end of the article.

[0139] In some embodiments, the method includes collecting one or more sheets on a rod, wrapping the rod, and cutting it into separate sections to form plugs. The method may include pressing the sheet before collecting the sheet on the rod.

[0140] The method may include collecting a sheet around a former and forming a hole through the plug.

[0141] In some embodiments where the plug is formed from a sheet, the combustion inhibitor is included when the sheet material is made.

[0142] In some embodiments where the plug is formed from a sheet, the combustion inhibitor is incorporated into a coating applied to the surface of the sheet material.

[0143] In some embodiments, the combustion suppressant is applied to at least a portion of the surface of the formed plug. In some embodiments, the combustion suppressant is incorporated into a coating applied to the surface of the plug.

[0144] In some embodiments, the coating is formed by applying a precursor material comprising a binder and a combustion suppressant to the surface.

[0145] Consumable As used herein, the term "delivery system" is intended to encompass a system that delivers at least one substance to a user, and includes non-combustible aerosol supply systems such as electronic cigarettes, tobacco heating products, etc., which release a compound from an aerosol-generating material without burning the aerosol-generating material, and hybrid systems that generate an aerosol using a combination of aerosol-generating materials.

[0146] In some embodiments, the delivery system is a non-combustible aerosol supply system such as a powered non-combustible aerosol supply system.

[0147] According to the present disclosure, a "non-combustible" aerosol supply system is a system in which the constituent aerosol-generating material of the aerosol supply system (or its components) is not burned or combusted in order to facilitate the delivery of at least one substance to a user.

[0148] In some embodiments, the non-combustible aerosol supply system is an electronic cigarette, also known as a vaping device or an electronic nicotine delivery system (END), but it should be noted that the presence of nicotine in the aerosol-generating material is not a requirement.

[0149] In some embodiments, the non-combustible aerosol supply system is an aerosol-generating material heating system, also known as a non-combustion heating system. An example of such a system is a tobacco heating system.

[0150] In some embodiments, the non-combustible aerosol supply system is a composite system that uses a combination of aerosol-generating materials, one or more of which may be heated. Each aerosol-generating material may be in the form of, for example, a solid, liquid or gel, and may or may not contain nicotine. In some embodiments, the composite system includes a liquid or gel aerosol-generating material and a solid aerosol-generating material. The solid aerosol-generating material may include, for example, tobacco or non-tobacco products.

[0151] Typically, the non-combustible aerosol supply system may comprise a non-combustible aerosol supply device and a consumable for use with the non-combustible aerosol supply device.

[0152] In some embodiments, the present disclosure relates to consumables that contain an aerosol-generating material and are designed to be used with a non-combustible aerosol supply device. These consumables may also be referred to as articles throughout the present disclosure.

[0153] The consumable is an article that contains an aerosol-generating material, a part or all of which is intended to be consumed during use by the user, and also comprises a plug containing a combustion-inhibiting additive as described herein. The article typically has a downstream end that connects to or includes a mouthpiece and / or filter, and an upstream end also referred to as a distal end. In some embodiments, the article comprises a plug containing a combustion-inhibiting additive at the distal end of the article.

[0154] The consumable may further comprise one or more other components such as a storage area for the aerosol-generating material, a transfer component for the aerosol-generating material, an aerosol generation area, a receptacle, a wrapper, a mouthpiece, a filter and / or an aerosol modifier. The consumable may also comprise an aerosol generator such as a heater that generates heat during use to generate an aerosol from the aerosol-generating material. The heater may include, for example, a combustible material, a material heatable by electrical conduction, or a susceptor.

[0155] The susceptor is a material that can be heated by penetration using a varying magnetic field such as an alternating magnetic field. The susceptor may be an electrically conductive material, and its penetration using a varying magnetic field causes induction heating of the heating material. The heating material may be a magnetic material, and its penetration using a varying magnetic field causes magnetic hysteresis heating of the heating material. The susceptor may be both electrically conductive and magnetic, and the susceptor can be heated by both heating mechanisms. A device designed to generate a varying magnetic field is referred to herein as a magnetic field generating device.

[0156] In some embodiments, the heating material may include a metal or a metal alloy. In some embodiments, the heating material may include one or more materials selected from the group consisting of: aluminum, gold, iron, nickel, cobalt, conductive carbon, graphite, plain carbon steel, stainless steel, ferritic stainless steel, copper, and bronze. Other heating material(s) may be used in other embodiments. In some embodiments, the heating material may be a magnetic material. It has also been found that when a magnetic electrically conductive material is used as the heating material, the magnetic coupling between the magnetic electrically conductive material and the electromagnet of the device can be enhanced during use. In addition to potentially enabling magnetic hysteresis heating, this can result in greater or improved Joule heating of the heating material, and thus greater or improved heating of the aerosol-generating material.

[0157] In some embodiments, the heating material includes a flat plate or a strip or a ribbon. In some embodiments, the heating material includes a mesh or an expanded metal.

[0158] In some embodiments, when the article is in use, the heating material is in contact with the aerosol-generating material. In some embodiments, the heating material is incorporated into the article. In other embodiments, when the article is inserted into a non-combustible aerosol supply device, the heating material is inserted into the article.

[0159] When the article includes a heating material such as a susceptor, the heating material may be included in the rod of the aerosol-forming material. In some embodiments, the heating material is distributed within the aerosol-forming material. In some embodiments, the sheet or mesh heating material extends through the rod of the aerosol-forming material. In some embodiments, the heating material extends to the end of the rod of the aerosol-forming material in contact with a plug containing a combustion suppressant additive. In some embodiments, the plug containing the combustion suppressant additive is in contact with the upstream end of the rod of the aerosol-forming material and is optionally at the distal end of the article.

[0160] The heating material may be in contact with a plug containing a combustion suppressant additive. In some embodiments, the heating material may extend through a plug containing a combustion suppressant additive and into the aerosol-forming material. In such embodiments, the plug containing the combustion suppressant additive may be upstream of the rod of the aerosol-forming material and is optionally at the distal end of the article.

[0161] The aerosol-forming material is a material capable of generating an aerosol when energy is applied thereto, for example by heating, irradiation, or any other means. The aerosol-forming material may be in the form of a solid, liquid or gel, which may or may not contain, for example, an active substance and / or a flavorant. In some embodiments, the aerosol-forming material may include an "integrated solid" (i.e., non-fibrous), alternatively referred to as an "amorphous solid". In some embodiments, the amorphous solid may be a dry gel. An amorphous solid is a solid material that can hold some fluid, such as a liquid, therein. In some embodiments, the aerosol-forming material may include, for example, an amorphous solid from about 50 wt%, about 60 wt% or about 70 wt% to about 90 wt%, 95 wt% or 100 wt%.

[0162] In some embodiments, the article comprises a wrapper surrounding the rod and plug of the aerosol-forming material, and at least a portion of the wrapper contains a combustion suppressant additive. In some embodiments, the combustion suppressant additive is provided in the form of a coating on at least a portion of the surface of the wrapper.

[0163] The package may include a combustion suppressant additive and a coating containing the same, as described herein with respect to the plug. The combustion suppressant additive may be incorporated into the package by the means described herein with respect to the plug.

[0164] The inventors have found that by adding at least one combustion suppressant additive to a coating applied to the surface of the package, combustion suppression properties are imparted. The presence of the coating containing the combustion suppressant salt makes it even more difficult to ignite the article and prevents the article from burning.

[0165] In addition, this package provides an environmentally friendly alternative to other known packages that serve a combustion suppression role. For example, it is common to use aluminum as a package for suppressing combustion in aerosol-generating articles. Aluminum consumes a large amount of energy to manufacture and is difficult to recycle after use, so the package described herein is a more sustainable alternative.

[0166] As used herein, a package is an integral part of an article or consumable and the term is not used to refer to the packaging of an article that is removed before use of the article.

[0167] In some embodiments, a non-combustible aerosol supply system, such as the non-combustible aerosol supply device, may comprise a power source and a control device. The power source may be, for example, a power supply or a heat-generating power source. In some embodiments, the heat-generating power source comprises a carbon-based substrate that can be energized to distribute power in the form of heat to an aerosol-forming material or a heat transfer material in proximity to the heat-generating power source.

[0168] In some embodiments, the non-combustible aerosol supply system may comprise a region for receiving a consumable, an aerosol generator, an aerosol generation region, a container, a mouthpiece, a filter and / or an aerosol modifier.

[0169] In some embodiments, an article, package, carrier, amorphous solid, aerosol-forming material, or any component of an article may further comprise one or more of an aerosol-forming material(s), functional material(s), fragrance(s), botanical substance(s), active substance(s), or aerosol modifier(s).

[0170] One or more other functional materials may include one or more of a pH adjuster, colorant, preservative, binder, filler, stabilizer, and / or antioxidant.

[0171] The aerosol-forming material may include one or more components capable of forming an aerosol. In some embodiments, the aerosol-forming material may include one or more of glycerin, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-erythritol, ethyl vanillate, ethyl laurate, diethyl suberate, triethyl citrate, triacetin, diacetin mixture, benzyl benzoate, benzyl phenylacetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.

[0172] One or more other functional materials may include one or more of a pH adjuster, colorant, preservative, binder, filler, stabilizer, and / or antioxidant.

[0173] As used herein, the terms "flavor" and "flavoring" refer to materials that can be used to create a desired taste, smell, or other somatic sensory stimuli in products for adult consumers, where local regulations permit. They include naturally occurring flavor materials, botanical substances, extracts of botanical substances, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice, hydrangea, eugenol, hinoki leaves, chamomile, fenugreek, clove, maple, matcha, menthol, Japanese mint, aniseed (anis), cinnamon, turmeric, Indian spices, Asian spices, herbs, wintergreen, cherry, berry, redberry, cranberry, peach, apple, orange, mango, clementine, lemon, lime, tropical fruit, papaya, daikon, grape, durian, dragon fruit, cucumber, blueberry, mulberry, citrus fruits, dambuie, bourbon, scotch, whiskey, gin, tequila, rum, spearmint, peppermint, lavender, aloe vera, cardamom, celery, cascarilla, nutmeg, frankincense, bergamot, geranium, cart, naswar, kinma, shisha, pine, honey extract, rose oil, vanilla, lemon oil, orange oil, orange flower, cherry blossom, cassia, caraway, cognac, jasmine, ylang-ylang, sage, perilla, wasabi, bell pepper, ginger, coriander, coffee, asa, mint oil of any species of the genus Mentha, eucalyptus, daikon radish, cocoa, lemongrass, rooibos, ama, ginkgobiloba), hibiscus, hibiscus, ginkgo biloba, mate tree, orange peel, rose, tea such as green tea or black tea, thyme, byakushin, nasturtium flower, basil, bay leaf, cumin, oregano, paprika, rosemary, saffron, lemon peel, peppermint, sesame, turmeric, coriander leaf, ginger, blackcurrant, buttercup, mustard, nikuzuku flower, damien, marjoram, olive, lemon balm, lemon basil, Japanese leek, dwarf umbelliferae, vervain, tarragon, limonene, thymol, camphene), fragrance enhancer, bitter receptor site blocker, sensory receptor site activator or stimulant, sugar and / or alternative sugar (e.g., sucralose, acesulfame potassium, aspartame, saccharin, cyclamate, lactose, sucrose, glucose, fructose, sorbitol, or mannitol), and may include other additives such as charcoal, chlorophyll, minerals, plant substances, or breath fresheners. They may be imitation, synthetic or natural raw materials or blends thereof. They may be in any suitable form, such as a liquid such as an oil or fat, a solid such as a powder, or a gas.

[0174] In some embodiments, the fragrance includes menthol, spearmint and / or peppermint. In some embodiments, the fragrance includes fragrance components of cucumber, blueberry, citrus and / or redberry. In some embodiments, the fragrance includes eugenol. In some embodiments, the fragrance includes fragrance components extracted from tobacco. In some embodiments, the fragrance includes fragrance components extracted from cannabis.

[0175] In some embodiments, the fragrance is generally intended to achieve a chemically induced and perceived somatosensory stimulus by stimulating the fifth cranial nerve (trigeminal nerve) in addition to or instead of the nerves of smell or taste, and may be perceived by the five senses, which may include agents that produce heat, cooling, tingling, or numbness effects. Suitable heat effect agents may include, but are not limited to, vanillyl ethyl ether, and suitable cooling agents may include, but are not limited to, eucalyptol, WS-3.

[0176] In some embodiments, the delivered substance includes a fragrance.

[0177] As used herein, an active substance can be a physiologically active material and is intended to achieve or enhance a physiological response. The active substance may be selected, for example, from nutraceuticals, nootropics, and psychoactive drugs. The active substance may be of natural origin or obtained synthetically. The active substance may include, for example, nicotine, caffeine, taurine, theine, vitamins such as B6, B12, or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof. The active substance may include one or more constituents, derivatives, or extracts of tobacco, cannabis, or other plant substances. In some embodiments, the delivered substance includes an active substance.

[0178] In some embodiments, the active substance includes nicotine. In some embodiments, the active substance includes caffeine, melatonin, or vitamin B12.

[0179] As shown herein, the active substance may include one or more of the constituents, derivatives, or extracts of cannabis, such as one or more of cannabinoids or terpenes.

[0180] As shown herein, the active substance may include one or more of plant substances or their constituents, derivatives or extracts, or may be derived therefrom. As used herein, the term "plant substance" includes any material derived from plants, including but not limited to extracts, leaves, bark, fibers, stems, roots, seeds, flowers, fruits, pollen, pods, husks, etc. Alternatively, the material may naturally occur in plant substances and contain active compounds obtained synthetically. The material may be in the form of a liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, chips, sheets, etc. Examples of plant substances are tobacco, eucalyptus, dandelion, hemp, cocoa, cannabis, dandelion, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo, purslane, hibiscus, ginkgo biloba, licorice, matcha, yerba mate, orange peel, papaya, rose, sage, green tea or black tea, thyme, clove, cinnamon, coffee, aniseed, basil, bay leaf, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, perilla, bilberry, nasturtium flower, vanilla, wintergreen, perilla, turmeric, curcumin, ginger, magnolia flower, bergamot, orange flower, kinkan, blackcurrant, calamus, mustard, hellebore flower, damiana, marjoram, olive, lemon balm, lemon basil, shallot, dwarf dandelion, vervain, tarragon, geranium, mulberry, burdock, theanine, theacrine, maca, ashwagandha, damiana, guarana, chlorophyll, baobab or any combination thereof.The hacker can be selected from the following hacker variants: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v., Mentha spicata crispa, Mentha cardifolia, Mentha longifolia, Mentha suaveolens variegata, Mentha pulegium, Mentha spicata c.v. and Mentha suaveolens.

[0181] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or a constituent, derivative or extract thereof, and the plant substance is tobacco.

[0182] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or a constituent, derivative or extract thereof, and the plant substance is selected from eucalyptus, daikon, cocoa and hemp.

[0183] In some embodiments, the active substance comprises or is derived from one or more of a plant substance or a constituent, derivative or extract thereof, and the plant substance is selected from rooibos and daikon.

[0184] An aerosol modifier is typically a substance that is arranged downstream of the aerosol generation region and is designed to modify the generated aerosol, for example by changing the flavor, fragrance, sourness or another characteristic of the aerosol. The aerosol modifier can be supplied to a release component of the aerosol modifier that can selectively manipulate the release of the aerosol modifier.

[0185] The aerosol modifier may be, for example, an additive or an absorbent. The aerosol modifier may include, for example, one or more of a flavoring agent, a coloring agent, water, and a carbon adsorbent. The aerosol modifier may be, for example, a solid, a liquid, or a gel. The aerosol modifier may be in the form of a powder, a thread, or granules. The aerosol modifier may be free of a filtering material.

[0186] In some embodiments, the article comprises a substrate. The material is present on or in a support and may form the substrate. The support may be, for example, paper, cardboard, paperboard, thick paper, recycled material, plastic material, ceramic material, composite material, glass, metal, or a metal alloy or may include these. 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.

[0187] In some embodiments, the non-combustible aerosol supply system comprises an aerosol generator. The aerosol generator is a device designed such that an aerosol is generated from an aerosol generating material. In some embodiments, the aerosol generator is a heater designed to apply thermal energy to the aerosol generating material to release one or more volatile substances from the aerosol generating material to form an aerosol. In some embodiments, the aerosol generator is designed such that an aerosol is generated from the aerosol generating material without heating. For example, the aerosol generator may be designed to apply to the aerosol generating material one or more of vibration, increased pressure, or electrostatic energy.

[0188] FIG. 1 is a side cross-sectional view of a consumable or article 1 for use in an aerosol delivery system. The article 1 comprises a mouthpiece region 2 and an aerosol generation region 3.

[0189] The aerosol generation area 3 is in the form of a cylindrical rod and in this example contains an aerosol generation material 4 which includes reconstituted tobacco in the form of scored plugs. The aerosol generation material can be any suitable material.

[0190] In an exemplary embodiment, the mouthpiece area 2 includes a material body 5 such as collected paper or fibrous tow or filamentary tow.

[0191] The rod-shaped consumable 1 further comprises a wrapper 6, such as a paper wrapper, that encloses the mouthpiece area 2 and the aerosol generation area 3. The consumable 1 also comprises a plug 7 containing a combustion suppressant additive at its distal end.

[0192] FIG. 2 shows an example of a non-combustible aerosol supply device 100 for generating an aerosol from an aerosol generation medium / material, such as the aerosol generation material of the consumable 110 described herein. Briefly, the device 100 heats a replaceable article 110 containing an aerosol generation medium, such as the article 1 illustrated in FIG. 1 or described elsewhere herein, to generate an aerosol or other drawable medium that is drawn by a user of the device 100. The device 100 and the replaceable article 110 together form a system.

[0193] The device 100 comprises a housing 102 (in the form of an outer cover) that surrounds and houses the various components of the device 100. The device 100 has an opening 104 at one end through which the article 110 can be inserted for heating by a heating assembly. In use, the article 110 can be fully or partially inserted into the heating assembly and heated by one or more components of the heater assembly.

[0194] The device 100 in this example includes a first end 106, and the first end includes a lid 108 that is movable relative to the first end 106 to close the opening 104 when the article 110 is not disposed. In FIG. 2, the lid 108 is shown in the open position, but the lid 108 can move to the closed position. For example, the user can slide the lid 108 in the direction of arrow "B".

[0195] The device 100 may also include a user-operable control element 112, such as a button or switch, that activates the device 100 when pressed. For example, the user can turn on the device 100 by operating the switch 112.

[0196] The device 100 may also include an electrical component, such as a socket / port 114, that can receive a cable for charging the battery of the device 100. For example, the socket 114 may be a charging port, such as a USB charging port.

Example

[0197] Tests were conducted on the sheet containing the combustion-inhibiting salt to evaluate its flame retardancy. For the test, the sheets were exposed to a flame without a cover to check whether they would burn.

[0198] Example 1 In the first example, various coatings were prepared on the paper sheet by applying a two-layer precursor material. In different tests, different concentrations of the combustion-inhibiting salt and the binder were used as shown in Table 1. The combustion-inhibiting salt was NaCl and the binder was PVA paste. None of the treated sheets ignited during the combustion trial.

[0199]

Table 1

[0200] Example 2 A sheet of amorphous material containing a combustion-inhibiting salt was formed from a slurry having the following composition: 43 g of alginate (2.7%) 100 g of sodium chloride (6.3%) 50 g of glycerol (3.1%) 1400 ml of water (87.9%)

[0201] The slurry was dried in a furnace, and the resulting sheet was subjected to a test of attempting to set fire to the sheet using an uncovered flame. The sodium chloride content of the dried sheet was 52 wt% (on a dry weight basis), and the amount of the alginate binder was 22.3 wt% (DWB).

[0202] The test showed that the amorphous solid material containing sodium chloride is well resistant to combustion.

[0203] In addition, a further sheet was formed from a slurry having the following composition: 21.5 g of alginate 21.5 g of wood pulp 120 g of sodium chloride 30 g of glycerol 1400 ml of water

[0204] The slurry was dried in a furnace to form a sheet. The resulting sheet also did not burn when exposed to an uncovered flame from a lighter. The sodium chloride content of the dried sheet was 62.2 wt% (on a dry weight basis), and the amount of the alginate binder was 11.1 wt% (DWB).

[0205] The various embodiments described herein are presented only to assist in the understanding and teaching of the claimed features. These embodiments are provided only as representative examples and are not exhaustive and / or exclusive. The advantages, embodiments, examples, functions, features, structures, and / or other aspects described herein should not be considered to limit the scope of the invention as defined by the claims or to limit the claimed equivalents, and it should be understood that other embodiments may be utilized and modifications may be made without departing from the scope of the claimed invention. The various embodiments of the invention preferably include, consist of, or consist essentially of suitable combinations of disclosed elements, components, features, parts, steps, means, etc. other than those specifically described herein. Additionally, the present disclosure may include other inventions that are not claimed herein but may be claimed in the future.

Claims

1. A plug for use at the distal end of an article used in a non-flammable aerosol delivery system, the plug comprising a flame retardant additive and a mass of amorphous solid material.

2. A plug as described in claim 1, containing a flammable material.

3. A plug as described in claim 1 or 2, comprising one or more sheets of paper or paper-like material.

4. A plug as described in claim 3, wherein one or more sheets of paper or paper-like material comprise an amorphous solid material.

5. A plug as described in any one of claims 1 to 4, which is resistant to combustion when exposed to temperatures up to 300°C.

6. A plug as described in any one of claims 1 to 5, wherein the burn-suppressing additive is incorporated into the amorphous solid material.

7. A plug as described in claim 6, wherein the amorphous solid material contains about 3 wt% to about 60 wt% of a combustion-suppressing salt (on a dry weight basis).

8. A plug as described in any one of claims 1 to 7, wherein the combustion suppressing additive is applied to a coating on the surface of the plug.

9. A plug as described in claim 8, wherein the coating comprises from about 3 wt% to about 70 wt% (dry weight basis) of at least one burn-suppressing additive.

10. A plug as described in claim 8 or 9, wherein the coating includes a binder.

11. The plug of claim 10, wherein the binder is selected from one or more of the group consisting of polyvinyl alcohol (PVA), gelatin, rubbers, acacia gum, starch, polysaccharides, pectin, alginate, wood pulp, cellulose, and cellulose derivatives such as carboxymethylcellulose.

12. A plug as described in claim 10 or 11, wherein the coating comprises from about 10 wt% to about 97 wt% of at least one binder.

13. A plug according to any one of claims 1 to 12, wherein the burn suppressant additive is an alkali metal salt optionally selected from the group consisting of sodium chloride, potassium chloride, sodium bromide, potassium bromide, and combinations thereof.

14. The plug of any one of claims 1 to 13, wherein the plug has a bulk density of between about 0.1 and about 0.3 mg / mm 3 .

15. A plug described in any one of claims 1 to 14, wherein the amorphous solid material comprises 10 to 40 wt% of a gelling agent, and optionally, the gelling agent comprises a hydrophilic colloid.

16. A plug described in any one of claims 1 to 15, wherein the amorphous solid material comprises 0.5 to 40 wt% of an aerosol-forming material.

17. A plug described in any one of claims 1 to 15, wherein the amorphous solid material contains less than about 20 wt% water.

18. An article for use in a non-flammable aerosol delivery system, comprising: a rod containing an aerosol-forming material; An article comprising the plug according to any one of claims 1 to 17.

19. The article of claim 18, wherein the plug is adjacent to the rod containing the aerosol-generating material.

20. An article as described in claim 18 or claim 19, wherein the plug is in contact with the rod containing the aerosol-generating material.

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