Classifications

• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/20—Cigarettes specially adapted for simulated smoking devices
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
  • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
  • A24B15/10—Chemical features of tobacco products or tobacco substitutes
  • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24B—MANUFACTURE OR PREPARATION OF TOBACCO FOR SMOKING OR CHEWING; TOBACCO; SNUFF
  • A24B15/00—Chemical features or treatment of tobacco; Tobacco substitutes, e.g. in liquid form
  • A24B15/10—Chemical features of tobacco products or tobacco substitutes
  • A24B15/16—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D1/00—Cigars; Cigarettes
  • A24D1/02—Cigars; Cigarettes with special covers
• • A—HUMAN NECESSITIES
  • A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
  • A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES OF CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
  • A24D3/00—Tobacco smoke filters, e.g. filter tips or filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces of cigars or cigarettes
  • A24D3/17—Filters specially adapted for simulated smoking devices

Definitions

• Certain tobacco industry products produce an aerosol during use, which is inhaled by a user.
• tobacco heating devices heat an aerosol generating substrate such as tobacco to form an aerosol by heating, but not burning, the substrate.
• Such tobacco industry products commonly include mouthpieces through which the aerosol passes to reach the user’s mouth.
• the ratio of the thickness of the first tubular wall to the internal radius of the first hollow cavity can be between about 0.6 and about 1.1.
• the article can further comprise a mouth end component at the downstream end of the article.
• the second tubular wall can comprise at least first and second overlapping paper layers each extending around substantially the whole circumference of the second tubular element.
• the at least first and second overlapping paper layers can each comprise a thickness of between 30 and 150 pm and/or the at least first and second overlapping paper layers can each comprise a basis weight of between 25 and 130 gsm.
• the at least first and second overlapping paper layers can be connected to each other by a layer of adhesive and/or the first and second overlapping paper layers can each be non-porous.
• the first tubular element can have an axial length between about 5mm and about 14mm.
• the aerosol-generating material section can be in the form of a rod having an axial length which is less than or equal to the axial length of the second tubular element.
• the aerosol-generating material section can be in the form of a rod having an axial length which is between 50% and 80% of the axial length of the second tubular element.
• the a verage weigh t per mm of axial length of the article can be less than about 14.5 mg/mm or less than about 14 mg/mm.
• the non-tobacco weight of the article can be between 45% and 55% of the overall article weight, for instance between 48% and 53%.
• the second tubular wall can have a thickness of between about 160 pm and about 250 pm, and/or the second tubular wall can have a thickness which is less than about 15% or less than about 10% of the internal radius of the second hollow cavity.
• the second tubular element can define a second hollow cavity haring a volume of at least about 520 mm'-.
• the second tubular element can have an axial length of greater than about 16mm or greater than about 16.5mm and/or the second tubular element can have an axial length which is at least 1.5 or at least 2 times greater than the axial length of the first tubular element.
• the aerosol -generating material can comprise a plurality of strands or strips of aerosol- generating material.
• the strands or strips of aerosol-generating material can be arranged such that their longitudinal dimension is substantially parallel with the longitudinal axis of the article.
• the aerosol-generating material can comprise reconstituted sheet tobacco material.
• aerosol-generating material can comprise an amorphous solid, such as the amorphous solid materials described herein.
• the amorphous solid can comprise a dried gel.
• the amorphous solid can be in sheet form, such as strands or strips of amorphous solid.
• the combined volumes of the first and second hollow cavities can be at least about 580 mm3, or at least about 620 mm 3 or at least about 650 mm3.
• the second tubular element can define a second hollow cavity and ventilation can be provided into the second hollow cavity through the wall of the second tubular element.
• the level of ventilation can be between about 10% and about 60%. In some examples, the level of ventilation is between 15% and 35%. In some examples, the level of ventilation is between 40% and 60%.
• a non-combustible aerosol provision system comprising a non-combustible aerosol provision device and an article according to the first aspect above,
• the non-combustible aerosol provision device can comprise a heating element configured for insertion into the aerosol-generating material of the article.
• the non-combustible aerosol provision device can comprise a housing and an aperture in the housing into which the article is inserted in use, and wherein the system is configured such that the second tubular element extends partially within and partially outside the housing when the article is fully inserted into the non-combustible aerosol provision device.
• the system can be configured such that the second tubular element extends at least about 5mm within and at least about 8mm outside the housing when the article is fully inserted into the non-combustible aerosol provision device.
• the article can comprise one or more ventilation apertures extending through said second tubular element at a location in the second tubular element which is outside the housing when the article is fully inserted into the non-combustible aerosol provision device.
• Figure 1 is a side-on cross sectional view of an article for use with a non-combustible aerosol provision device;
• Figure 2 is a cross sectional view of the article of Figure 1 taken along line A-A’ shown in Figure 1: and
• FIG 3 is a simplified schematic illustration of the components within the housing of the non-combustible aerosol provision device shown in Figure 2. Detailed description
• upstream and downstream are relative terms defined in relation to the direction of mainstream aerosol drawn through an article or device in use.
• Figure 1 is a side-on cross sectional view of an article 1 for use in an aerosol delivery system, inserted into a receiving portion 2, in the present case a recess, of a non- combustible aerosol provision device 3.
• Figure 2 is a cross sectional view of the article 1 of Figure 1 taken along line A-A’ shown in Figure 1.
• the article 1 comprises an aerosol -generating section 4 and a dow nstream section 5 downstream of the aerosol-generating section 4.
• the downstream section 5 can be or include a mouthpiece designed to be inserted into a user’s mouth in use, or alternatively may be arranged to work with a separate mouthpiece such as one provided as a separate attachment to the downstream section 5 or as part of the device 3.
• the downstream section 5 has an upstream end 5a and a downstream end 5b.
• the aerosol-generating section 4 comprises a source of aerosol- generating material in the form of a cylindrical rod of aerosol-generating material.
• the aerosol -generating section 4 may comprise a cavity for receiving a source of aerosol -generating material.
• the aerosol-generating material can include at least 5% aerosol-former material by weight of the aerosol-generating material, calculated on a dry weight basis, the aerosol-former material being, for instance, one of the aerosol-former materials described herein.
• the receiving portion 2 is a recess in the device 3 including a pin -shaped heater 2a which penetrates the aerosol generating section 4.
• the pin- shaped heater 2a is resistively heated in the present example, although may alternatively be formed of a heating material as described herein which can be inductively heated, such as a susceptor.
• the aerosol generating section 4 of the article 1 can include a heating material, for instance one which can be inductively heated, such as a susceptor.
• the mouthpiece or downstream portion 5 includes a first tubular element 8a immediately downstream of the aerosol-generating material section 4, the first tubular element 8a defining a first hollow cavity.
• the first tubular element 8a is in an abutting relationship with the aerosol-generating material.
• the first tubular element 8a has a first tubular wall.
• the mouthpiece or downstream portion 5 also includes a second tubular element 8b immediately downstream of the first tubular element 8a.
• the second tubular element 8b is in an abutting relationship with the first tubular element 8a.
• the second tubular element 8b has a second tubular wall having a wall thickness of less than about 320 pm.
• the second tubular element 8b has an axial length of greater than about 15 mm, for instance between about 15 mm and about 25 mm.
• a body of material 6 is provided at the downstream end 5b of the downstream section 5.
• the first and second tubular elements 8a, 8b, and the body of material 6, in the present example each define a cylindrical outer shape and are arranged end-to-end on a common axis.
• the first and second tubular elements 8a, 8b, aerosol-generating material section 4 and body of material 6 have approximately the same outer diameter.
• the first and second tubular elements 8a, 8b together define a chamber into which aerosol formed in the aerosol-generating section is drawn and expands and cools.
• the provision of discrete first and second tubular elements 8a, 8b enables these components to be designed to achieve different functional effects.
• the first tubular element 8a can be arranged to provide functions such as helping to reduce movement of the aerosol-generating material in use, as the article i is inserted into the recess 2 and the pin heater 2a penetrates the aerosol-generating material section 4.
• the first tubular element 8a can have a wall thickness of, for instance, between imm and 3.5mm, or between 1.5mm and 2.5mm.
• the first tubular element 8a can be arranged to help with providi ng rigidity to the article 1.
• the first tubular element 8a can be arranged to encourage aerosol to flow predominantly through an axial region of the second tubular element 8b, for instance to assist with aerosol formation.
• the second tubular element 8b can be designed to define a relatively large chamber as compared to the first tubular element 8a, providing greater space into which the aerosol formed in the aerosol- generating section 4 can be drawn to expand and cool.
• providing a relatively thin wall thickness of less than 320 ⁇ m enables material to be concentrated in the outer region of the second tubul ar element 8b, which can provide a higher bending stiffness as compared to components with thicker walls and the same weight.
• an article as described with reference to Figure 1 has the specific features set out in table 1.0 below.
• the body of material 6 is provided at the mouth or downstream end ib of the article 1, in other examples a further component can be provided downstream of the body of material 6. For instance, a further body of material can be provided.
• the aerosol-generating material may comprise a plurality of strands or strips of aerosol-generating material.
• the aerosol-generating material may comprise a plurality of strands or strips of an aerosolisable material and/or a plurality of strands or strips of an amorphous solid, as described hereinbelow.
• the aerosol -generating material consists of a plurality of strands or strips of an aerosolisable material.
• the aerosol-generating material consists of a single strand, strip or sheet of an aerosolisable material.
• the strands or strips of aerosol-generating material can be arranged such that their longitudinal dimension is substantially parallel with the longitudinal axis of the article.
• the aerosol - generating material can be in the form of reconstituted sheet tobacco material, such as bandcast reconstituted tobacco.
• the first tubular element has an axial length of about 7mm, but in other examples the first tubular element can have an axial length between about
• the first tubular element 8a has a wall thickness of about 1.6mm and an inner radius of the hollow cavity defined by the first tubular element 8a is about 1.95 mm. This results in a ratio between the thickness of the first tubular wall to the internal radius of the first hollow cavity of about 0.82. In other examples, the ratio of the thickness of the first tubular wall to the internal radius of the first hollow cavity can be between about 0.6 and about 1.1, or between about 0.7 and about 0.9.
• the volume of the second hollow cavity defined by the second tubular element 8b is about 588 mm 3 .
• the volume of the first hollow cav ity defined by the first tubular element 8a is about 84 mm 3 .
• the ratio of the volume of the second hollow cavity to the volume of the first hollow cavity is therefore about 7 times.
• the ratio of the volume of the second hollow cavity to the volume of the first hollow cavity can alternatively be between about 6.5 and about 8. This provides an arrangement in which aerosol can expand from a relatively small cavity within the first tubular element 8a into the much larger cavity of the second tubular element 8 b.
• the second tubular element 8b can define a second hollow cavity having a volume of at least about 520 mm3.
• the combined volumes of the first and second hollow cavities can, for instance, be at least about 580 mm3, or at least about 620 mm3 or at least about 650 mm3.
• the second tubular wall can comprise at least first and second overlapping paper layers each extending around substantially the whole circumference of the second tubular element 8b.
• the at least first and second overlapping paper layers can each have a thickness of between 30 and 150 pm.
• the at least first and second overlapping paper layers can each have a basis weight of between 25 and 130 gsm.
• the at least first and second overlapping paper layers can be connected to each other by a layer of adhesive.
• the first and second overlapping paper layers can each be non-porous.
• the aerosol-generating material section 4 can be in the form of a rod having an axial length which is less than or equal to the axial length of the second tubular element 8b.
• the aerosol-generating material section 4 can be in the form of a rod having an axial length which is between 50% and 80% of the axial length of the second tubular element 8b.
• These arrangements result in an article with a relatively large cavity size defined by the second tubular element 8b as compared to the volume occupied by the aerosol-generating material.
• Such a cavity can allow for improved expansion of the volume of aerosol passing though the article 1 and better aerosol formation.
• ventilation apertures are provided into the wall of the second tubular element 8b such that cool air enters the cavity defined by the second tubular element 8b in use, further enhancing aerosol formation via condensation of aerosol components within the cavity.
• the second tubular element 8b can have an axial length of greater than about 16mm or greater than about 16.5mm .
• the second tubular element 8b can have an axial length which is at least 1.5 or at least 2 times greater than the axial length of the first tubular element 8a.
• Use of a second tubular element 8b immediately downstream of the first tubular element 8a, which has a wall thickness of less than about 320 pm and an axial length of greater than about 15mm can result in an article which has an overall weight which is lower than previous designs.
• the aerosol-generating material section 4 has a weight of about 304 mg and the non-aerosol-generating material components of the article 1 have a combined weight of about 320 mg.
• the total weight is therefore 624 grams for an article 1 with an overall length of 48mm, resulting in an average weight of 13 mg/mm.
• the average weight per mm of axial length of the article can be less than about 14.5 mg/mm or less than about 14 mg/mm.
• the non-aerosol-generating material weight of the article can be between 45% and 55% of the overall article weight, for instance between 48% and 53%.
• the tubular wall of the second tubular element 8b in the present example, is formed from first and second overlapping paper sheets, resulting in an overall thickness of about 200 ⁇ m.
• the second tubular wall can have a thickness of between about i6oum and about 250 pm.
• the second hollow cavity defined by the second tubular element has a diameter of about 6.6mm and a radius ‘r’ shown in Figure
• the non-combustible aerosol provision device 3 and the article 1 together form a non-combustible aerosol provision system.
• the non-combustible aerosol provision device 3 includes a heating element 2a configured for insertion into the aerosol-generating material of the article 1.
• the heating element is a pin-shaped heater 2a which penetrates the aerosol-generating material.
• the non-combustible aerosol provision device 3 includes a housing 9 and an aperture to in the housing 9 into which the article 1 is inserted in use.
• the system is configured such that the second tubular element 8b extends partially within and partially outside the housing 9 when the article 1 is fully inserted into the non-combustible aerosol provision device 3, as shown in Figure 1.
• the system can be configured such that the second tubular element 8b extends at least about 5mm within and at least about 8mm outside the housing 9 when the article 1 is fully inserted into the non-combustible aerosol provision device 3.
• the article 1 has an aerosol- generating material section 4 having a length of about 12mm, a first tubular element 8a having a length of about 7mm and a second tubular element 8b having a length of about 17mm.
• the article 1 is inserted into the device 3 to an insertion depth of about 25mm, as shown by arrow ‘B’ in Figure 1.
• about 6mm of the second tubular element 8b, between the upstream end 8b’ of the second tubular element and the location ‘B’ on the article 1 aligned with the entrance to the recess 2 in the device 3, extends within the device 3.
• the article 1 includes one or more ventilation apertures 12 extending through the second tubular element 8b at a location in the second tubular element 8b which is outside the housing 9 when the article 1 is fully inserted into the non-combustible aerosol provision device 3.
• the one or more ventilation apertures 12 can be provided as one or more rows of apertures, such as laser or mechanically formed perforations, circumscribing the article 1.
• the level of ventilation is between about 10% and about 60%, for instance between about 20% and about 55% of the mainstream aerosol.
• the cylindrical rod of aerosol-generating material comprises a plurality of strands and/or strips of aerosol-generating material, and is circumscribed by a wrapper 15.
• the wrapper 15 may be a moisture impermeable wrapper.
• the plurality of strands or strips of aerosol-generating material may be aligned within the aerosol-generating section 4 such that their longitudinal dimension is in parallel alignment with the longitudinal axis, X-X’ of the article 1.
• the strands or strips may generally be arranged such that their longitudinal dimension aligned is transverse to the longitudinal axis of the article 1.
• a m ajority of the strands or strips may be arranged such that their l ongitudinal dimensions are in parallel alignment with the longitudinal axis of the article 1. In some embodiments, about 95% to about 100% of the plurality of strands or strips are arranged such that their longitudinal dimension is in parallel alignment with the longitudinal axis of the article 1. In some embodiments, substantially all of the strands or strips are arranged in the aerosol-generating section such that their longitudinal dimension is in parallel alignment with the longitudinal axis of the aerosol-generating section of the article 1.
• the force required to insert an aerosol generator, such as the heating element 2a in this case, into the aerosol-generating material can be relatively low. This can result in an article 1 which is easier to use.
• the rod of aerosol-generating material has a circumference of about 22.1 mm. In alternative embodiments, the rod of aerosol-generating material may have any suitable circumference, for example between about 20 mm and about 26 mm.
• the first tubular element 8a is formed from filamentary tow, in the present example plasticised cellulose acetate tow.
• Other constructions can be used, such as a tubular element 8a formed having inner and outer paper tubes sandwiching a crimped paper sheet material.
• the wall of the first tubular element can be relatively non-porous, such that at least 80% of the aerosol generated by the aerosol generating material passes longitudinally through the hollow channels through the tube rather than through the wall material itself. For instance, at least 92% or at least 95% of the aerosol generated by the aerosol generating material can pass longitudinally through the first hollow cavity.
• the filamentary tow forming the first tubular element 8a preferably has a total denier of between 25,000 and 45,000, preferably between 35,000 and 45,000.
• the cross-sectional shape of the filaments of tow are Y shaped, although in other embodiments other shapes such as ‘X’ shaped filaments can be used.
• the filamentary tow forming the first tubular element 8a preferably has a denier per filament between 4 and 10, more preferably between 4 and 9.
• the filamentary' tow forming the first tubular element 8a has an 8Y40,000 tow formed from cellulose acetate and comprising 18% plasticiser, for instance triacetin.
• the density of the material forming the first tubular element 8a is at least about 0.20 grams per cubic centimetre (g/cc), more preferably at least about 0.25 g/cc.
• the density of the material forming the first tubular element 8a is less than about 0.80 grams per cubic centimetre (g/cc), more preferably less than 0.6 g/ cc.
• the density of the material forming the first tubular element 8a is between 0.20 and 0.8 g/cc, more preferably between 0.3 and 0.6 g/cc, or between 0.4 g/cc and 0.6 g/cc or about 0.5 g/cc.
• the "density" of the material forming the first tubular element 8a refers to the density of any filamentary tow or other material forming the element with any plasticiser incorporated. The density may be determined by dividing the total weight of the material forming the first tubular element 8a by the total volume of the material forming the first tubular element 8a, wherein the total volume can be calculated using appropriate measurements of the material forming the first tubular element 8a taken, for example, using callipers. Where necessary, the appropriate dimensions maybe measured using a microscope.
• the first and second tubular elements 8a, 8b can be configured to proride a temperature differential of at least 40 degrees Celsius between a heated volatilised component entering a first, upstream end of the first and second tubular elements 8a, 8b and a heated volatilised component exiting a second, downstream end of the first and second tubular elements 8a, 8b.
• the first and second tubular elements 8a, 8b are preferably configured to provide a temperature differential of at least 60 degrees Celsius, preferably at least 80 degrees Celsius and more preferably at least too degrees Celsius between a heated volatilised component entering a first, upstream end of the first and second tubular elements 8a, 8b and a heated volatilised component exiting a second, downstream end of the first and second tubular elements 8a, 8b.
• This temperature differential across the length of the first and second tubular elements 8a, 8b protects the temperature sensitive body of material 6 from the high temperatures of the aerosol-generating material when it is heated .
• the aerosol -generating section 4 may exhibit a pressure drop of from about 15 to about 40 mm H 2 O. In some embodiments, the aerosol-generating section 4 exhibits a pressure drop across the aerosol-generating section 4 of from about 15 to about 30 mm H 2 O.
• the aerosol -generating material may have a packing density or bulk density of between about 400 mg/cnri and about 900 mg/cms within the aerosol -generating section.
• a packing density higher than this may make it difficult to insert the aerosol-generator of the aerosol provision device into the aerosol-generating material and increase the pressure drop.
• a packing density lower than 400 mg/cm3 may reduce the rigidity of the article.
• the aerosol-generating m aterial may not effectively grip the aerosol-generator of the aerosol provision device. At least about 70% of a volume of the aerosol -generating section is filled with the aerosol-generating material.
• the moisture impermeable wrapper 15 which circumscribes the rod of aerosol -generating material comprises aluminium foil.
• the wrapper 15 comprises a paper wrapper, optionally comprising a barrier coa ting to make the material of the wrapper substantially moisture impermeable.
• the wrapper comprises paper or a paper backing, i.e. a cellulose based material
• the wrapper can have a basis weight greater than about 30 gsm.
• the wrapper can have a basis weight in the range from about 40 gsm to about 70 gsm.
• the moisture impermeable wrapper 15 is also substantially impermeable to air.
• the wrapper 15 preferably has a permeability of less than 100
• permeability of the wrapper 15 can be measured in accordance with ISO 2965:2009 concerning the determination of air permeability for materials used as cigarette papers, filter plug wrap and filter joining paper.
• the body of material 6 is wrapped in a first plug wrap 7.
• a second plug wrap 13 is provided to connect the body of material 6, first tubular element 8a and second tubular element 8b.
• the first and second plug wraps 7, 13 each have a basis weight of less than 50 gsm, more preferably between about 20 gsm and 40 gsm.
• the first and second plug wraps 7, 13 each have a thickness of between 30 ⁇ m and 60 ⁇ m, more preferably between 35 ⁇ m and 45 pm.
• the first and second plug wraps 7, 13 are non-porous plug wraps, for instance having a permeability of less than too Coresta units, for instance less than 50 Coresta units.
• the first and/or second plug wrap 7, 13 can be a porous plug wrap, for instance having a permeability of greater than 200 Coresta Units.
• 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 14 mm. In addition, or as an alternative, the length of the body of material 6 is at least about 5 mm. Preferably, the length of the body of material 6 is at least about 8 mm.
• the length of the body of material 6 is from about 5 ram to about 15 mm, more preferably from about 8 mm to about 14 mm, even more preferably from about 10 mm to about 14 mm, most preferably about 10 mm, 11 mm or 12 mm. In the present example, the length of the body of material 6 is 12 mm .
• the body of material 6 is formed from filamentary tow.
• the tow used in the body of material 6 has a denier per filament (d.p.f.) of 5 and a total denier of 25,000.
• the tow comprises plasticised cellulose acetate tow.
• the plasticiser used in the tow comprises about 9% by weight of the tow.
• the plasticiser is triacetin.
• different materials can be used to form the body of material 6.
• the body 6 can be formed from paper, for instance in a similar way to paper filters known for use in cigarettes.
• the paper, or other cellulose- based material can be provided as one or more portions of sheet material which is folded and/or crimped to form body 6.
• the sheet material can have a basis weight of from lsgsm to 6ogsm, for instance between 20 and 50 gsm.
• the sheet material can, for instance, have a basis weight in any of the ranges between 15 and 25 gsm, between 25 and 30 gsm, between 30 and 40 gsm, between 40 and 45 gsm and between 45 and 50 gsm.
• the sheet material can have a width of between 50mm and 200mm, for instance between 60mm and 150mm, or between 80mm and 150mm.
• the sheet m aterial can have a basis weight of between 20 and 50 gsm and a width between 80mm and 150mm. This can, for instance, enable the cellulose-based bodies to have appropriate pressure drops for an article having dimensions as described herein.
• the body 6 can be formed from tows other than cellulose acetate, for instance polylactic acid (PLA), other materials described herein for filamentary tow or similar materials.
• the tow is preferably formed from cellulose acetate.
• the tow, whether formed from cellulose acetate or other materials, preferably has a d.p.f. of at least 5.
• the tow has a denier per filament of no more than 12 d.p.f., preferably no more than 11 d.p.f. and still more preferably no more than 10 d.p.f.
• the total denier of the tow forming the body of material 6 is preferably at most 30,000, more preferably at most 28,000 and still more preferably at most 25,000. These values of total denier provide a tow which takes up a reduced proportion of the cross sectional area of the mouthpiece 2 which results in a lower pressure drop across the mouthpiece 2 than tows having higher total denier values.
• the tow preferably has a total denier of at least 8,000 and more preferably at least 10,000.
• the denier per filament is between 5 and 12 while the total denier is between 10,000 and 25,000.
• the cross-sectional shape of the filaments of tow are ‘Y’ shaped, although in other embodiments other shapes such as ‘X’ shaped filaments can be used, with the same d.p.f. and total denier values as provided herein.
• the pressure drop across body 6 can, for instance, be between 0.3 and 5mmWG per mm of length of the body 6, for instance between o.smmWG and 2.5mmWG per mm of length of the body 6.
• the pressure drop can, for instance, be between 1.5 and 2.5mmWG/mm of length, on average.
• the total pressure drop across body 6 can, for instance, be between i2mmWG and somWG, or between ismmWG and 25mm WG.
• the pressure drop refers to the average or total pressure drop prior to any rupture of th at com ponen t.
• a tipping paper 16 is wrapped around the full length of the dow nstream portion 5 and over part of the rod of aerosol-generating material and has an adhesive on its inner surface to connect the downstream portion 5 and rod.
• the rod of aerosol-generating material is wrapped in wrapper 15, which forms a first wrapping material
• the tipping paper 16 forms an outer wrapping material which extends at least partially over the rod of aerosol-generating material to connect the downstream portion 5 and rod.
• the tipping paper can extend fully over the rod of aerosol-generating material.
• the article i has a ventilation level of about 25% of the aerosol drawn through the article 1.
• the article 1 preferably includes ventilation apertures provided into the second tubular element 8b.
• the article 1 can have a ventilation level of between 10% and 60% of aerosol draw n through the article 1, for instance between 20% and 50%.
• An aerosol modifying agent is provided within the body of material 6, in the present example in the form of an additive release component, in the present case a capsule 11.
• the capsule 11 can be omitted in other embodiments.
• the first plug wrap 7 can be an oil-resistant first plug wrap 7.
• the aerosol modifying agent can be provided in other forms, such as material injected into the body of material 6 or provided on a thread, for instance the thread carrying a flavourant or other aerosol modifying agent, which may also be disposed within the body of material 6.
• the capsule 11 can comprise a breakable capsule, for instance a capsule which has a solid, frangible shell surrounding a liquid payload.
• a single capsule 11 is used.
• the capsule 11 is entirely embedded within the body of material 6. In other words, the capsule it is completely surrounded by the material forming the body 6.
• a plurality of breakable capsules may be disposed within the body of material 6, for instance 2, 3 or more breakable capsules.
• the length of the body of material 6 can be increased to accommodate the number of capsules required.
• the individual capsules may be the same as each other, or may differ from one another in terms of size and/or capsule payload.
• multiple bodies of material 6 may be provided, with each body containing one or more capsules.
• the capsule 11 has a core-shell structure.
• the capsule 11 comprises a shell encapsulating a liquid agent, for instance a flavourant or other agent, which can be any one of the flavourants or aerosol modifying agents described herein.
• the shell of the capsule can be ruptured by a user to release the flavourant or other agent into the body of material 6.
• the capsule 11 is spherical and has a diameter of about 3 mm.
• the capsule may have a diameter less than 4 mm, or less than 3.5 ram, or less than 3.25 mm. In alternative embodiments, the capsule may have a diameter greater than about 3.25 mm, for example greater than 3.5 mm, or greater than 4 mm.
• the total weight of the capsule 11 may be in the range about 10 mg to about 50 mg.
• the capsule 11 is located at a non-longitudinally central position within the body of material 6.
• the capsule 11 is located closer to the upstream end of the body of material 6 than to the downstream end. That is, the capsule 11 is positioned so that its centre is 5 mm from the upstream end of the body of material 6 and 7mm from the downstream end, which can assist with ensuring that the capsule cannot be seen from the downstream end of the article 1.
• the aerosol-generating material comprises an aerosol-former material.
• the aerosol- former material comprises one or more constituents capable of forming an aerosol.
• the aerosol -former material comprises one or more of gly cerine, glycerol, propylene glycol, diethylene glycol, triethylene glycol, tetraethylene glycol, 1,3-butylene glycol, erythritol, meso-Erythritol, ethyl vanillate, ethyl laurate, a diethyl suberate, triethyl citrate, triacetin, a diacetin mixture, benzyl benzoate, benzyl phenyl acetate, tributyrin, lauryl acetate, lauric acid, myristic acid, and propylene carbonate.
• the aerosol-former material is glycerol or propylene glycol.
• the aerosol-former material is provided in an amount of up to about 50% on a dry weight base by weight of the aerosol-generating material.
• the aerosol former material is provided in an amount of from about 5% to about 40% on a dry weight base by weight of the aerosol-generating material, from about 10% to about 30% on a dry weight base by weight of the aerosol-generating material or from about 10% to about 20% on a dry- weight base, by weight of the aerosol-generating material.
• the aerosol-generating material herein can comprise an aerosol modifying agent, such as any of the flavours described herein.
• the aerosol-generating material comprises menthol.
• the article may be referred to as a mentholated article.
• the aerosol-generating material can comprise from 0.5111g to 20mg of menthol, from 0.7 mg to 20 mg of menthol, between img and t8mg or between 8mg and i6mg of menthol. In the present exam ple, the aerosol -generating material comprises i6mg of menthol.
• the aerosol-generating material can comprise between 1% and 8% by weight of menthol, preferably between 3% and 7% by weight of menthol and more preferably between 4% and 5.5% by weight of menthol. In one embodiment, the aerosol-generating material comprises 4.7% by weight of menthol. Such high levels of menthol loading can be achieved using a high percentage of reconstituted tobacco material, for instance greater than 50% of the tobacco material by weight.
• the aerosol-generating material includes an aerosol-forming “amorphous solid”, which may alternatively be referred to as a “monolithic solid” (i.e. non-fibrous).
• the amorphous solid may comprise a dried gel.
• the amorphous solid is a solid material that may retain some fluid, such as liquid, within it.
• the amorphous solid comprises:
• the amorphous solid comprises:
• the amorphous solid material may be provided in sheet or in shredded sheet form.
• the amorphous solid material may take the same form as the plurality of strands or strips of aerosol-generating material described previously.
• the amorphous solid may comprise from about lwt%, 5wt%, iowt%, 15wt%, 20wt% or 251x1% to about 6owt%, 501x1%, 45111%, 401x1% or 351x1% of a gelling agent (all calculated on a dry weight basis).
• the amorphous solid may comprise 1-501x1%, 5-4511!%, 10-40x11% or 20-35x11% of a gelling agent.
• the gelling agent comprises a hydrocolloid.
• the gelling agent comprises one or more compounds selected from the group comprising alginates, pectins, starches (and derivatives), celluloses (and derivatives), gums, silica or silicones compounds, clays, polyvinyl alcohol and combinations thereof.
• the gelling agent comprises one or more of alginates, pectins, hydroxyethyl cellulose, hydroxypropyl cellulose, carboxymethylcellulose, pullulan, xanthan gum guar gum, carrageenan, agarose, acacia gum, fumed silica, PDMS, sodium silicate, kaolin and polyvinyl alcohol.
• the gelling agent comprises alginate, and the alginate is present in the amorphous solid in an amount of from 10-30wt% of the amorphous solid (calculated on a dry weight basis). In some embodiments, alginate is the only gelling agent present in the amorphous solid. In other embodiments, the gelling agent comprises alginate and at least one further gelling agent, such as pectin.
• the amorphous solid may include gelling agent comprising carrageenan.
• the amorphous solid may comprise from about 0.1wt%, 0.5wt%, 1wt%, 3wt%, 5wt%, 7wt% or 10% to about 50wt%, 45wt%, 40wt%, 35wt%, 30wt% or 25wt% of an aerosol-former material (all calculated on a dry weight basis).
• the aerosol-former material may act as a plasticiser.
• the amorphous solid may comprise 0.5- 40wt%, 3-35wt% or io-25wt% of an aerosol-former material.
• the aerosol-former material comprises one or more compound selected from erythritol, propylene glycol, glycerol, triacetin, sorbitol and xylitol.
• the aerosol- former material comprises, consists essentially of or consists of glycerol.
• the amorphous solid comprises a flavour.
• the amorphous solid may comprise up to about 80wt%, 70wt%, 60wt%, 55wt%, 50wt% or 45wt% of a flavour.
• the amorphous solid may comprise at least about 0.1wt%, 1wt%, 10wt%, 20wt%, 30wt%, 35wt% or 40wt% of a flavour (all calculated on a dry weight basis).
• the amorphous solid may comprise i-8owt%, io-8owt%, 20-70wt%, 30- 6owt%, 35 -55wt% or 30-45wt% of a flavour.
• the flavour comprises, consists essentially of or consists of menthol.
• the amorphous solid may additionally comprise an emulsifying agent, which emulsified molten flavour during manufacture.
• the amorphous solid may comprise from about 5wt% to about 15wt% of an emulsifying agent (calculated on a dry weight basis), suitably about 10wt%.
• the emulsifying agent may comprise acacia gum.
• the amorphous solid is a hydrogel and comprises less than about 20 wt% of water calculated on a wet weight basis. In some cases, the hydrogel may comprise less than about 15wt%, 12 wt% or 10 wt% of water calculated on a wet weight basis. In some cases, the hydrogel may comprise at least about iwt%, 2wt% or at least about 5wt% of water (WWB).
• the amorphous solid additionally comprises an active substance.
• the amorphous solid additionally comprises a tobacco material and/or nicotine.
• the amorphous solid may comprise 5- 6owt% (calculated on a dry weight basis) of a tobacco material and/or nicotine.
• the amorphous solid may comprise from about lwt%, 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 70wt%, 6owt%, 50wt%, 45wt%, 40wt%, 35wt%, or 30wt% (calculated on a dry weight basis) of an active substance.
• the amorphous solid may comprise from about lwt%, 5wt%, 10wt%, iswt%, 20wt% or 2 ⁇ wt% to about 70wt%, 6owt%, 50wt%, 45wt%, 40wt%, 35wt%, or 30wt% (calculated on a dry weight basis) of a tobacco material.
• the amorphous solid may comprise 10- 50wt%, 15-40wt% or 20-35wt% of a tobacco material.
• the amorphous solid may comprise from about iwt%, 2wt%, 3wt% or 4wt% to about 20wt%, i8wt%, 15wt% or I2wt% (calculated on a dry weight basis) of nicotine.
• the amorphous solid may comprise i-20wt%, 2-i8wt% or 3-i2wt% of nicotine.
• the amorphous solid comprises an active substance such as tobacco extract.
• the amorphous solid may comprise 5-60wt% (calculated on a dry weight basis) of tobacco extract.
• the amorphous solid may comprise from about 5wt%, 10wt%, 15wt%, 20wt% or 25wt% to about 6owt%, 50wt%, 45wt%, 40wt%, 35wt%, or 30wt% (calculated on a dry weight basis) tobacco extract.
• the amorphous solid may comprise 10-50wt%, 15-40wt% or 2O-35wt% of tobacco extract.
• the tobacco extract may contain nicotine at a concentration such that the amorphous solid comprises iwt% i.swt%, 2wt% or 2.5wt% to about 6wt%, 5wt%, 4.5wt% or 4wt% (calculated on a dry wight basis) of nicotine.
• the amorphous solid comprises no tobacco material but does comprise nicotine.
• the amorphous solid may comprise from about 1wt%, 2wt%, 3wt% or 4wt% to about 20wt%, 18wt%, 15wt% or i2wt% (calculated on a dry weight basis) of nicotine.
• the amorphous solid may comprise 1- 20wt%, 2-i8wt% or 3-i2wt% of nicotine.
• the total content of active substance and/or flavour may be at least about
• the total content of active substance and/or flavour may be less than about 90wt%, 8owt%, 70wt%, 60wt%, 50wt% or 40wt% (all calculated on a dry weight basis).
• the total content of tobacco material, nicotine and flavour may be at least about 0.1wt%, 1wt%, 5wt%, 10wt%, 20wt%, 25wt% or 30wt%.
• the total content of active substance and/or flavour may be less than about 90wt%, 80wt%, 70wt%, 60wt%, 50wt% or 40wt% (all calculated on a dry weight basis).
• the amorphous solid may be made from a gel, and this gel may additionally comprise a solvent, included at 0.1-50wt%.
• the inventors have established that the inclusion of a solvent in which the flavour is soluble may reduce the gel stability and the flavour may crystallise out of the gel. As such, in some cases, the gel does not include a solvent in which the flavour is soluble.
• the amorphous solid comprises less than 6owt% of a filler, such as from 1wt% to 6owt%, or 5wt% to 50wt%, or 5wt% to 30wt%, or iowt% to 20wt%.
• the amorphous solid comprises less than 20wt%, suitably less than iowt% or less than 5wt% of a filler. In some cases, the amorphous solid comprises less than iwt% of a filler, and in some cases, comprises no filler.
• the filler if present, may comprise one or more inorganic filler materials, such as calcium carbonate, perlite, vermiculite, diatomaceous earth, colloidal silica, magnesium oxide, magnesium sulphate, magnesium carbonate, and suitable inorganic sorbents, such as molecular sieves.
• the filler may comprise one or more organic filler materials such as wood pulp, cellulose and cellulose derivatives. In particular cases, the amorphous solid comprises no calcium carbonate such as chalk.
• the filler is fibrous.
• the filler may be a fibrous organic filler material such as wood pulp, hemp fibre, cellulose or cellulose derivatives.
• fibrous filler in an amorphous solid may increase the tensile strength of the material.
• the amorphous solid does not comprise tobacco fibres.
• the amorphous solid in sheet form may have a tensile strength of from around 200 N/m to around 1500 N/m. In some examples, such as where the amorphous solid does not comprise a filler, the amorphous solid may have a tensile strength of from 200 N/m to 400 N/m, or 200 N/m to 300 N/m, or about 250 N/m.
• Such tensile strengths may be particularly suitable for embodiments wherein the amorphous solid material is formed as a sheet and then shredded and incorporated into an aerosol-generating article.
• the amorphous solid may have a tensile strength of from 600 N/m to 1500 N/m, or from 700 N/m to 900 N/m, or around 800 N/m.
• Such tensile strengths may be particularly suitable for embodiments wherein the amorphous solid material is included in an aerosol-generating article as a rolled sheet, suitably in the form of a tube.
• the amorphous solid may consist essentially of, or consist of a gelling agent, water, an aerosol-former material, a flavour, and optionally an active substance.
• the amorphous solid may consist essentially of, or consist of a gelling agent, water, an aerosol-former material, a flavour, and optionally a tobacco material and/or a nicotine source.
• the amorphous solid may comprise one or more active substances and/or flavours, one or more aerosol-former materials, and optionally one or more other functional material.
• the amorphous solid material may be incorporated into the article in sheet form.
• the amorphous solid material in sheet form may be shredded and then incorporated into the article, suitably mixed into with an aerosolisable material, such as the plurality of strands or strips of aerosol -generating material described herein.
• the amorphous solid sheet may additionally be incorporated as a planar sheet, as a gathered or bunched sheet, as a crimped sheet, or as a rolled sheet (i.e. in the form of a tube).
• the amorphous solid of these embodiments may be included in an aerosol-generating article as a sheet, such as a sheet circumscribing a rod comprising aerosolisable material.
• the amorphous solid sheet may be formed on a wrapping paper which circumscribes an aerosolisable material such as tobacco.
• Figure 3 is a simplified schematic illustration of the components within the housing 9 of the non-combustible aerosol provision device 3 shown in Figure 2.
• an electrical energy supply 20 for example a rechargeable lithium ion battery.
• a controller 21 is connected to the heating element 2a, the electrical energy supply 20, and a user interface 22, for example a touch-sensitive display.
• the controller 21 controls the power supplied to the heating element 2a in order to regulate its temperature.
• the aerosol -generating material is heated to a temperature of between 250 and 450 degrees centigrade.
• the heating element 2a is configured for insertion into the aerosol generating material of the article 1.
• the heating element 2a is in the form of a pin heater in the present example, but in alternative examples can be shaped in the form of a blade terminating in a point.
• such a blade heater can have a length dimension that is greater than its width dimension, wh ich is greater than its thickness dimension.
• the aerosol-generating material of the article is warmed and volatile substances are generated or evolved.
• air is drawn into the article 1 and the volatile substances condense to form an inhalable aerosol .
• This aerosol passes through the mouthpiece 5 of the article 1 and into the user’s mouth.
• non-combustible aerosol provision system is intended to encompass systems that deliver at least one substance to a user by releasing compounds from an aerosol-generating material without combusting the aerosol- generating material, such as electronic cigarettes, tobacco heating products, and hybrid systems to generate aerosol using a combination of aerosol-generating materials.
• a “non-combustible” aerosol provision system is one where a constituent aerosol-generating material of the aerosol provision system (or component thereof) is not combusted or burned in order to facilitate delivery of at least one substance to a user.
• the delivery system is a non-combustible aerosol provision system, such as a powered non-combustible aerosol provision system.
• the non-combustible aerosol provision system is an electronic cigarette, also known as a vaping device or electronic nicotine delivery system (END), although it is noted that the presence of nicotine in the aerosol-generating material is not a requirement.
• the non-combustible aerosol provision system is an aerosol- generating material heating system, also known as a heat-not-burn system. An example of such a system is a tobacco heating system.
• the non- combustible aerosol provision system is a hybrid system to generate aerosol using a combination of aerosol-generating materials, one or a plurality of which may be heated.
• Each of the aerosol-generating materials may be, for example, in the form of a solid, liquid or gel and may or may not contain nicotine.
• the hybrid system comprises a liquid or gel aerosol-generating material and a solid aerosol- generating material.
• the solid aerosol-generating material may comprise, for example, tobacco or a non-tobacco product.
• the solid aerosol -generating material can comprise non-tobacco botanical material.
• the non-combustible aerosol provision system may comprise a non- combustible aerosol provision device and a consumable for use with the non- combustible aerosol provision device, such as the article t described herein.
• the disclosure relates to consumables comprising aerosol- generating material and configured to be used with non-combustible aerosol provision devices. These consumables are referred to as articles throughout the disclosure.
• the non-combustible aerosol provision system such as a non-combustible aerosol provision device thereof, may comprise a power source and a controller.
• the power source may, for example, be an electric power source or an exothermic power source.
• the exothermic power source comprises a carbon substrate which may be energised so as to distribute power in the form of heat to an aerosol-generating material or to a heat transfer material in proximity? to the exothermic power source.
• the non-combustible aerosol provision system comprises an area for receiving the consumable, an aerosol generator, an aerosol generation area, a housing, a mouthpiece, a filter and/or an aerosol-modifying agent.
• the consumable for use with the non-combustible aerosol provision device may comprise aerosol-generating material, an aerosol -generating material storage area, an aerosol-generating material transfer component, an aerosol generator, an aerosol generation area, a housing, a wrapper, a filter, a mouthpiece, and/or an aerosol-modifying agent.
• the consumable comprises a substance to be delivered.
• the substance to be delivered may be an aerosol-generating material or a material that is not intended to be aerosolised.
• either material may comprise one or more active constituents, one or more flavours, one or more aerosol-former materials, and/or one or more other functional materials.
• the substance to be delivered comprises an active substance.
• the active substance as used herein may be a physiologically active material, which is a material intended to achieve or enhance a physiological response.
• the active substance may for example be selected from nutraceuticals, nootropics, psychoactives.
• the active substance may be naturally occurring or synthetically obtained.
• the active substance may comprise for example nicotine, caffeine, taurine, theine, vitamins such as B6 or B12 or C, melatonin, cannabinoids, or constituents, derivatives, or combinations thereof.
• the active substance may comprise one or more constituents, derivatives or extracts of tobacco, cannabis or another botanical.
• the active substance comprises nicotine. In some embodiments, the active substance comprises caffeine, melatonin or vitamin B12.
• the active substance may comprise or be derived from one or more botanicals or constituents, derivatives or extracts thereof.
• botanical includes any material derived from plants including, but not limited to, extracts, leaves, bark, fibres, stems, roots, seeds, flowers, fruits, pollen, husk, shells or the like.
• the material may comprise an active compound naturally existing in a botanical, obtained synthetically.
• the material may be in the form of liquid, gas, solid, powder, dust, crushed particles, granules, pellets, shreds, strips, sheets, or the like.
• Example botanicals are tobacco, eucalyptus, star anise, hemp, cocoa, cannabis, fennel, lemongrass, peppermint, spearmint, rooibos, chamomile, flax, ginger, ginkgo biloba, hazel, hibiscus, laurel, licorice (liquorice), matcha, mate, orange skin, papaya, rose, sage, tea such as green tea or black tea, thyme, clove, cinnamon, coffee, aniseed (anise), basil, bay leaves, cardamom, coriander, cumin, nutmeg, oregano, paprika, rosemary, saffron, lavender, lemon peel, mint, juniper, elderflower, vanilla, vdntergreen, beefsteak plant, curcuma, turmeric, sandalwood, cilantro, bergamot, orange blossom, myrtle, cassis, valerian, pimento, mace, damien, marjoram
• the mint may be chosen from the following mint varieties: Mentha Arventis, Mentha c.v., Mentha niliaca, Mentha piperita, Mentha piperita citrata c.v., Mentha piperita c.v, Mentha spicata crispa, Mentha cardifolia, Memtha longifolia,
• the active substance comprises or is derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is tobacco. In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from eucalyptus, star anise, cocoa and hemp. In some embodiments, the active substance comprises or derived from one or more botanicals or constituents, derivatives or extracts thereof and the botanical is selected from rooibos and fennel.
• the substance to be delivered comprises a flavour.
• flavour and “flavourant” refer to materials which, where local regulations permit, may be used to create a desired taste, aroma or other somatosensorial sensation in a product for adult consumers. They may include naturally occurring flavour materials, botanicals, extracts of botanicals, synthetically obtained materials, or combinations thereof (e.g., tobacco, cannabis, licorice
• the flavour comprises menthol, spearmint and/or peppermint.
• the flavour comprises flavour components of cucumber, blueberry, citrus fruits and/or redberry.
• the flavour comprises eugenol.
• the flavour comprises flavour components extracted from tobacco.
• the flavour comprises flavour components extracted from cannabis.
• the flavour may comprise a sensate, which is intended to achieve a somatosensorial sensation which are usually chemically induced and perceived by the stimulation of the fifth cranial nerve (trigeminal nerve), in addition to or in place of aroma or taste nerves, and these may include agents providing heating, cooling, tingling, numbing effect.
• a suitable heat effect agent may be, but is not limited to, vanillyl ethyl ether and a suitable cooling agent may be, but not limited to eucolyptol, WS-3.
• An aerosol-generating material is a material that is capable of generating aerosol, for example when heated, irradiated or energized in any other way.
• An aerosol-generating material may be in the form of a solid, liquid or gel which may or may not contain an active substance and/or flavourants.
• the aerosol-generating material may be incorporated into an article for use in the aerosol-generating system.
• the aerosol- generating material can comprise tobacco or non-tobacco botanical material as described herein.
• tobacco material refers to any material comprising tobacco or derivatives or substitutes thereof.
• the tobacco material may be in any suitable form.
• tobacco material may include one or more of tobacco, tobacco derivatives, expanded tobacco, reconstituted tobacco or tobacco substitutes.
• the tobacco material may comprise one or more of ground tobacco, tobacco fibre, cut tobacco, extruded tobacco, tobacco stem, tobacco lamina, reconstituted tobacco and/or tobacco extract.
• a consumable is an article comprising or consisting of aerosol-generating m aterial, part or all of which is intended to be consumed during use by a user.
• a consumable may comprise one or more other components, such as an aerosol-generating material storage area, an aerosol-generating material transfer component, an aerosol generation area, a housing, a wrapper, a mouthpiece, a filter and/or an aerosol-modifying agent.
• a consumable may also comprise an aerosol generator, such as a heater, that emits heat to cause the aerosol-generating material to generate aerosol in use,
• the heater may, for example, comprise combustible material, a material heatable by electrical conduction, or a susceptor,
• a susceptor is a material that is heatable by penetration with a varying magnetic field, such as an alternating magnetic field.
• the susceptor maybe an electrically-conductive material, so that penetration thereof with a varying magnetic field causes induction heating of the heating material.
• the heating material may be magnetic material, so that penetration thereof with a varying magnetic field causes m agnetic hysteresis heating of the heating material.
• the susceptor may be both electrically-conductive and magnetic, so that the susceptor is heatable by both heating mechanisms.
• the device that is configured to generate the varying magnetic field is referred to as a magnetic field generator, herein.
• An aerosol-modifying agent is a substance, typically located downstream of the aerosol generation area, that is configured to modify the aerosol generated, for example by changing the taste, flavour, acidify or another characteristic of the aerosol.
• the aerosol- modifying agent may be provided in an aerosol-modifying agent release component, that is operable to selectively release the aerosol-modifying agent
• the aerosol-modifying agent may, for example, be an additive or a sorbent.
• the aerosol-modifying agent may, for example, comprise one or more of a flavourant, a colourant, water, and a carbon adsorbent.
• the aerosol-modifying agent may, for example, be a solid, a liquid, or a gel.
• the aerosol-modifying agent may be in powder, thread or granule form.
• the aerosol-modifying agent may be free from filtration material.
• An aerosol generator is an apparatus configured to cause aerosol to be generated from the aerosol-generating material.
• the aerosol generator is a heater configured to subject the aerosol-generating material to heat energy;, so as to release one or more volatiles from the aerosol-generating material to form an aerosol.
• the aerosol generator is configured to cause an aerosol to be generated from the aerosol-generating material without heating.
• the aerosol generator may be configured to subject the aerosol -generating material to one or more of 'vibration, increased pressure, or electrostatic energy.
• the filamentary' tow material described herein can comprise cellulose acetate fibre tow.
• the filamentary tow can also be formed using other materials used to form fibres, such as polyvinyl alcohol (PVOH), polylactic acid (PLA), polycaprolactone (PCL), poly(i-4 butanediol succinate) (PBS), poly(butylene adipate-co-terephthalate)(PBAT), starch based materials, cotton, aliphatic polyester materials and polysaccharide polymers or a combination thereof.
• the filamentary tow may be plasticised with a suitable plasticiser for the tow, such as triacetin where the material is cellulose acetate tow, or the tow may be non-plasticised.

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• 2022
  • 2022-04-28 GB GBGB2206202.0A patent/GB202206202D0/en not_active Ceased
• 2023
  • 2023-04-27 KR KR1020247034457A patent/KR20250002243A/ko active Pending
  • 2023-04-27 WO PCT/GB2023/051121 patent/WO2023209382A1/en not_active Ceased
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