EP4057848A1 - Procédé de formation d'une mousse pour un article de génération d'aérosol et mousse correspondante - Google Patents

Procédé de formation d'une mousse pour un article de génération d'aérosol et mousse correspondante

Info

Publication number
EP4057848A1
EP4057848A1 EP20803195.5A EP20803195A EP4057848A1 EP 4057848 A1 EP4057848 A1 EP 4057848A1 EP 20803195 A EP20803195 A EP 20803195A EP 4057848 A1 EP4057848 A1 EP 4057848A1
Authority
EP
European Patent Office
Prior art keywords
foam
agent
mixture
aerosol
tobacco
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
EP20803195.5A
Other languages
German (de)
English (en)
Inventor
Sandra SPIELES
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
JT International SA
Original Assignee
JT International SA
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by JT International SA filed Critical JT International SA
Publication of EP4057848A1 publication Critical patent/EP4057848A1/fr
Pending legal-status Critical Current

Links

Classifications

    • 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
    • A24B15/167—Chemical features of tobacco products or tobacco substitutes of tobacco substitutes in liquid or vaporisable form, e.g. liquid compositions for electronic cigarettes
    • 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
    • A24B15/12—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco
    • A24B15/14—Chemical features of tobacco products or tobacco substitutes of reconstituted tobacco made of tobacco and a binding agent not derived from 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
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/285—Treatment of tobacco products or tobacco substitutes by chemical substances characterised by structural features, e.g. particle shape or size
    • 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
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/30—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances
    • A24B15/302—Treatment of tobacco products or tobacco substitutes by chemical substances by organic substances by natural substances obtained from animals or plants
    • 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
    • A24B15/18—Treatment of tobacco products or tobacco substitutes
    • A24B15/28—Treatment of tobacco products or tobacco substitutes by chemical substances
    • A24B15/42—Treatment of tobacco products or tobacco substitutes by chemical substances by organic and inorganic substances

Definitions

  • the present invention relates to methods of forming a foam for an aerosol-generating article, comprising a tobacco-containing agent and/or an inhalable agent, an aerosol-forming agent, a foam-stabilizing agent, and a foam forming agent.
  • This invention also relates to a foam produced by said methods, and foams with a certain improved aeration.
  • aerosol-forming substrate is heated at a rather relatively low temperature, for instance below 350 °C, to avoid combustion thereof.
  • a charge of inhalable aerosol can then be released from the aerosol-generating article.
  • the aerosol released is originated from the aerosol formers, which are incorporated into the tobacco material, which may be particulated or granulated.
  • Tobacco material which has been homogenised is often used in the production of tobacco products.
  • Parts of tobacco plants that are less suited for the production of cut filler such as tobacco stems or tobacco dust are typically materials used for homogenised tobacco material.
  • These reconstituted tobacco can be provided in form of for example powder, sheet or foam (mousse).
  • Foamed tobacco product is one example which is known in the prior art mainly in the field of reconstituted tobacco products.
  • Manufacturing processes usually involve forming reconstituted tobacco sheets out of finely ground tobacco particles with a foam-forming agent and a foam- stabilizing agent, followed by shredding the reconstituted sheets, and blending with natural tobacco shreds.
  • the reconstituted tobacco products are usually used for the manufacture of cigarettes.
  • Reconstituted tobaccos in form of sheet or powder are generally better perceived in the market than the reconstituted tobaccos in form of foam or a mousse because of their textures and consistencies which are closer to the original tobacco materials.
  • Foamed reconstituted tobacco however has its own advantages, for instance, less amount of tobacco-containing material is generally needed to be provided to the aerosol-generating consumables compared to those provided in sheet form or powder form but due to its higher capability of delivery of volatile compounds such as nicotine, less amount of the tobacco-containing material is required to achieve the same result as in other forms such reconstituted tobacco sheet. As a result, lower production cost can be achieved. It would therefore be desirable to provide an improved method of forming foam for an aerosol-generating article as well as to provide an improved foam which is capable of delivering closer to conventional smoking articles.
  • a first aspect of the invention is accordingly to provide a method of forming a foam for an aerosol-generating article, comprising the steps of
  • a second aspect of the invention is a foam comprising: a tobacco- containing agent and/or an inhalable agent, an aerosol-forming agent, a foam forming agent, sodium bicarbonate and a foam stabilizing agent, wherein the weight of the tobacco-containing agent and/or the inhalable agent is 0.1 - 33 wt. % of the weight of the foam, and the weight of the aerosol-forming agent is 10 - 80 wt. %, preferably 40 - 70 wt. %, of the weight of the foam, and wherein the weight of the sodium bicarbonate is less than 1 wt. % based on the total weight of the foam.
  • the foam manufactured according to the present invention thanks to the sodium bicarbonate (NaHCCb), the foam according to the present invention unexpectedly improves tobacco taste of the aerosol-generating article, improves stability, processability as well as increased pore volume of the foam.
  • foam with sodium bicarbonate has an increased aeration value (pore volume) of the foam/mousse, thus particularly suitable for compact shaped substrates e.g. when the substrate is shaped into different forms such as card, pellet and stick.
  • the porosity of the foam not only increases significantly and the texture of the product obtained is fluffier, the flavour and aroma of the tobacco, which is highly sought after by the consumer, also increased significantly.
  • the sodium bicarbonate content is less than 1 wt. % based on the total weight of the foam according to the present invention. Thanks to the sodium bicarbonate which reacts with the mixture, wherein the mixture is preferably acidic, gases such as carbon dioxide is released, and in addition of the aeration of mixture, thus contributing to the increased porosity of the foam.
  • the pH of the mixture is adjusted to a pH value between 5 and 9, e.g. between 5 and 8.5.
  • acidic condition is preferred, for instance between 4 and 6.9. Such acidic condition enhance the release of carbon dioxide from the reaction of sodium bicarbonate, thus giving an increased pore volume to the foam.
  • it further comprises a step of adding a binder to the mixture, preferably before the aeration step or before the cooling of the mixture.
  • Binder are used in the present invention to bind fine particles such as tobacco-containing agent and other agents together.
  • the binder content is less than 15 wt. % based on the total weight of the foam.
  • the sodium bicarbonate content is between about 0.25 wt. and 0.75 wt. % based on the total weight of the foam.
  • the pH of the mixture is adjusted to a pH value between 5 and 9, e.g. between 5 and 8.5.
  • the sodium bicarbonate is added a second time to the mixture after the step of cooling the mixture.
  • an additional amount of sodium bicarbonate e.g. in total less than 1 % of sodium bicarbonate in the total weight of foam
  • the sodium bicarbonate reacts better with the cooled (room temperature) mixture by releasing gasses such as carbon dioxide, thereby aerating the foam.
  • An external aeration step could further enhance the aeration of the foam, thereby producing a higher percentage of pore volume of the foam.
  • the foam-stabilizing agent has a viscosity between 300 mPas and 3000 mPas, preferably between 400 mPas and 2500 mPas, further preferably between 500 mPas and 2000 mPas, when measured at room temperature i.e. around 22 °C.
  • the foam forming agent has a gel strength between 300 g/cm3 and 3000 g/cm3, preferably between 400 g/cm3 and 2500 g/cm3, further preferably between 500 g/cm3 and 2000 g/cm3, and/or wherein the foam-forming agent has a viscosity between 300 mPas and 3000 mPas, preferably between 400 mPas and 2500 mPas, further preferably between 500 mPas and 2000 mPas, when measured at room temperature i.e. around 22 °C.
  • the foam is extruded and portioned and/or shaped after cooling.
  • the foam has a pore volume of at least 5 vol. %, preferably having an aeration of between 12 and 20 vol. %, preferably between 12 and 15 vol. %, more preferably 15 vol. %, based on the total volume of the foam.
  • the foam-forming agent is a non-protein containing polysaccharide, and the weight of the foam-forming agent is less than 20 wt. % of the total weight of the foam.
  • present invention further comprises a solvent, preferably water, and/or an acid and/or an ester in an amount of up to 15 wt.-%, based on the total weight of the foam, preferably up to 5 wt.-%.
  • the foam is an open pored foam.
  • more than 50 % of the foam are open pored foam i.e. fluidly connected with each other.
  • the foam comprises at least 20 % of the bubbles in the foam have a diameter between 25 pm and 50 pm, and/or at least 15 % of the bubbles have a diameter between 51 pm and 100 pm, and/or at least 11 % of the bubbles have a diameter between 101 pm and 171 pm.
  • the foam comprises at least 30 % or at least 40 % of the bubbles in the foam have a diameter between 25 pm and 50 pm, and/or at least 23 % or at least 30 % of the bubbles have a diameter between 51 pm and 100 pm, and/or at least 15 % or at least 22 % of the bubbles have a diameter between 101 pm and 171 pm.
  • a tobacco-containing material can be any compound, mixture, particle matter, and/or solution that contains and/or carries a constituent of tobacco, either artificially included or naturally contained in tobacco, e.g. tobacco, tobacco particles, tobacco flavor and/or nicotine.
  • tobacco, tobacco particles, tobacco flavor and/or nicotine e.g. tobacco, tobacco particles, tobacco flavor and/or nicotine.
  • an example for an artificially added non-tobacco-specific flavor would be menthol.
  • aerosol-generating article refers to an aerosol-generating article for producing an aerosol comprising an aerosol generating material that is intended to be heated rather than combusted in order to release volatile compounds that can form an aerosol.
  • aerosol-generating material refers to a material, upon heating, capable of releasing volatile compounds, which can form an aerosol.
  • the aerosol generated from aerosol-generating material of aerosol generating articles described herein may be visible or invisible and may include vapours (for example, fine particles of substances, which are in a gaseous state, that are ordinarily liquid or solid at room temperature) as well as gases and liquid droplets of condensed vapours.
  • An aerosol-forming agent can be any compound, mixture and/or solution that is capable of forming an aerosol, e.g. when heated and/or in mixture with a tobacco-containing agent.
  • Well known examples include humectants such as glycerin and propylene glycol, other alcohols, such as ethanol, etc.
  • An open pored foam as used herein is to be understood as a foam which can be considered as being formed of a plurality of interconnecting pores (formed out of a structural material derived from the foam forming agent cooperating with the interacting components such as the foam stabilizing agent, solid components such as tobacco particles and some solvent, etc.) which are able to contain fluid, in particular a mixture of humectant/liquid aerosol-forming substrate and air, wherein at least a significant portion (e.g. greater than 50% by volume) of the pores in the foam are fluidly connected with each other, contrary to a closed-cell foam, wherein the majority of the pores form discrete pockets, each completely enclosed by pore-forming material so as to substantially prevent fluid from passing freely between pores.
  • the mousses formed as described herein are largely open-pored mousses because after cooling or heating of the aerosol-generating material comprising the sodium bicarbonate, vapour is released from the mousse, substantially all of the humectant appears to be released based on measuring of the weight of the mousse portion before and after heating, which could not be readily explained if the humectant was not able to travel through neighboring pores to reach the surface of the mousse portion.
  • alternative explanations cannot be totally excluded - for example closed pores could perhaps be opened by rupturing a closed cell wall as a result of the pressure of vaporized gas, etc.
  • An electronic cigarette (e-cigarette) or similar devices like electronic pipes or heat-not-burn devices, as referred to in the present invention, are not particularly limited, and may be used to provide a user with an aerosol to inhale. It can, according to certain embodiments, comprise a mouthpiece, a heater, a receiving portion, e.g. a pod, stick, capsule and a casing.
  • wt.-% is to be understood as weight percent, based on the total weight of the foam, unless explicitly otherwise specified. In the present disclosure, all amounts are given in wt.-%, unless clearly stated otherwise or obvious from context. In the present disclosure, furthermore all amounts given in wt.-% add up to 100 wt.-%. The weight percent are thereby calculated by dividing the mass of each component by the total mass e.g. of the foam, unless indicated otherwise or clear from context.
  • vol. % is to be understood as volume percent, based on the total volume of the foam, unless explicitly otherwise specified. In the present disclosure, all amounts given in vol. % in a particular foam add up to 100 vol. % The volume percent are thereby calculated by dividing the volume of each component by the total volume of the foam, unless indicated otherwise or clear from context.
  • aeration values also known as pore volumes as used herein indicate the vol. % of the foam or mousse which is composed of air. The actual aeration values of samples have been estimated using the following procedure: a sample of “foam” is made without taking any action (e.g.
  • Particle sizes as disclosed in this invention, can be measured by any suitable method, e.g. sieving or laser diffraction, preferably sieving.
  • the (dynamic) viscosity described herein refers to the flow behaviour of liquids. It is defined as the internal frictional resistance of a liquid to the application of a pressure or a shearing stress.
  • the dynamic viscosity is given in millipascal-seconds (mPas) and is determined by using a rotary viscometer. The viscosity measured in performed at room temperature i.e. 22 °C.
  • cooling is to be understood as having a temperature at a room temperature (around 22-24 degrees Celsius) for at least 60 minutes, or at a temperature less than 16 °C for at least 10 minutes, or more preferably at a temperature less than 12 °C for at least 5 minutes.
  • aeration is to be understood as introduction of air or gasses into, through an external step, into the material.
  • the aeration can be performed for instance though whipping, beating, mixing or aerating with an aeration machine such as Krups Prep & Cook HP 5031 mousse whipping shuffle, or by injection air with an aerator, e.g. like Mondomix aerator.
  • Aeration can be carried out at any suitable temperature.
  • the duration of the aeration can be for instance 1 , 2, 3, 4, 5 or 10 minutes or more.
  • Present invention relates to a method of forming a foam for an aerosol generating article and the foam thereof. It has been found out that when the aerosol-generating tobacco-containing mixture for forming the foam comprises additionally sodium bicarbonate, a significant increase of aeration of the tobacco mousse has been observed. This observation can be attributed by the fact that gasses such as carbon dioxide is released from the foam mixture, more so especially when the mixture is provided in an acidic condition. In other words, the pore volume of the foam increased significantly compared to those foam without having sodium bicarbonate.
  • the foam according to the present invention is particularly suitable to be shaped into compact substrates such as in form of a thin card, pellet or stick.
  • pore volume of the foam becomes crucial as it determines the aeration efficiency of the foam.
  • Existing tobacco foam products are hence not suitable to be compacted as the aeration of the foam/mousse decreases significantly when being compacted.
  • the foam according to the present invention achieves better aeration due to higher pore volume in the foam. This in return increases the release of the vapour/aerosol.
  • the tobacco taste has improved unexpectedly, as the foam is not only more stable and fluffy, but also capable of releasing stronger tobacco flavour and aroma upon heating of the foam.
  • the achieved aeration of the substrate thanks to sodium bicarbonate addition is further advantageous in that it allows to reduce, for a given substrate portion format, the total weight of the substrate portion can be significantly reduced, in practice between 20%-40% lower, compared to a same substrate portion not comprising sodium bicarbonate.
  • the foams according to certain embodiments are not bound and/or connected to a carrier, i.e. can be used as is, i.e. as free standing foam.
  • the foam are not bound to a substrate according to certain embodiments, but rather are used as is.
  • the present foams are stable enough to be used as is, i.e. are self- supporting, and have a sufficient stiffness so that they are not bent when picked up on their own and do not require a further stabilizing substrate.
  • the present foams are biodegradable.
  • the foam structure in the foams is not particularly limited and can, for example, comprise trapped air bubbles and/or bubbles of other gases such as nitrogen or oxygen, e.g. air bubbles. It can be provided as an open structure with a large surface area, which enables heat and aerosol to circulate through the foam, particularly during heating, thus providing uniform heating, a good quality aerosol, and extremely efficient extraction of the tobacco-containing agent and/or the inhalable agent.
  • the foam is an open pored foam. This means that the foam has an open pore structure according to certain embodiments. With an open pored structure, i.e. an open pored foam, circulation of heat and aerosol is enhanced.
  • the foam forming agent generally can trap the bubbles when the foam is formed, e.g. whipped, and the foam stabilizing agent can reduce and even prevent breakdown of the foam.
  • the bubbles of the foam may have an average diameter in the range of 25 - 130 pm, e.g. 45- 110 pm, e.g. 70 - 85 pm, and about 97% of the bubbles may have a diameter of 180 pm or less, e.g. 160 pm or less, e.g. 140 pm or less, e.g. 120 pm or less.
  • At least 20 %, preferably at least 30 %, further preferably at least 35 % of the bubbles, also possibly referred to as pores, in the foam have a diameter between 30 pm and 55 pm, and/or at least 15 %, preferably at least 25 %, further preferably at least 30 % of the bubbles have a diameter between 51pm and 100 pm, and/or at least 15 %, further preferably at least 20 % of the bubbles have a diameter between 101 pm and 171 pm.
  • the diameter therein can be determined e.g. using a microscopy method, e.g. using a Digital Microscope VHX Keyence.
  • the method of determining the bubble size is not particularly restricted.
  • the foam may be formed into any suitable shape for insertion into an e-cigarette.
  • the present foam comprises at least one blind or hole through the foam for circulation and aerosol transmission, e.g. one, two, three, four, five, six, seven, eight, nine, ten or more hole through the foam.
  • An example shape is an annular pipe shape hole going through the foam portion of any shape, e.g. of about 1 cm diameter, e.g. a 3 mm through hole, or a square, a star, but can also be any other shape or dimension.
  • the foam is having a structure having a big surface area, e.g. having at least one surface with at least one distance between any two sides of the surface or with a diameter that is sufficiently larger than the thickness of the foam.
  • the foam can thus be in the shape of a disc, e.g. a cylindrical disc, a thin plate, etc.
  • the at least one hole is going through the at least one surface with at least one distance between any two sides of the surface or with a diameter that is sufficiently larger than the thickness of the foam.
  • the foam-stabilizing agent is not particularly limited as long as it can stabilize the foam to some extent after formation.
  • the foam stabilizing agent of the present foam is selected from the group consisting of cellulose gum, hydroxyalkylated carbohydrates, and mixtures thereof. Both of the cellulose gum and the hydroxyalkylated carbohydrates are not particularly restricted.
  • the foam-stabilizing agent is a cellulose gum, particularly a carboxymethylcellulose, or a derivative thereof.
  • An exemplary, preferred, cellulose gum which may be used in the present invention is CEKOL® 2000 and/or Ceroga 4550C (C.E. Roeper GmbH), a purified sodium carboxymethylcellulose each.
  • Suitable foam stabilizing agents are hydroxyalkylated carbohydrates, and more preferably cellulose ethers and derivatives thereof.
  • a cellulose ether or derivative thereof that can be used can have at least one substituent selected from the group consisting of methyl, ethyl, hydroxyethyl and hydroxypropyl groups. It can further be substituted with a linear or branched substituted or unsubstituted alkyl radicals having 1 - 20 carbon atoms or an aralkyl radical having 7 to 20 carbon atoms. Such radical is preferably attached by an ether linkage.
  • Suitable substituents can e.g. a hydroxy group, a carboxy group with 1 to 4 carbon atoms, etc.
  • the cellulose ether is selected from hydroxyethylcellulose, methylcellulose, methylhydroxyethylcellulose, ethylhydroxyethylcellulose, and mixtures thereof.
  • mixtures of different cellulose gums, different hydroxyalkylated carbohydrates, and mixtures of one or more cellulose gum with one or more hydroxyalkylated carbohydrate, as well as derivatives of one or either thereof can be used.
  • derivatives are salts of these cellulose ethers, preferably alkali metal salts thereof, e.g. sodium and/or potassium salts thereof.
  • the foam-forming agent is not particularly restricted.
  • the foam-forming agent of the present foam is selected from the group consisting of agar, gellan gum, lecithin, polyglycerol esters of fatty acids, glycerol esters of fatty acids, sorbitan esters of fatty acids, and/or mixtures thereof, without being limited thereto.
  • a preferred foam-forming agent is gellan gum.
  • Glycerol esters can be prepared by standard esterification methods. If glycerol esters of fatty acids are used, the foam-forming agent can suitably be a compound such as glycerol monostearate and/or glycerol monooleate.
  • Polyglycerol esters can be prepared by polymerizing glycerin under alkaline conditions suitably followed by reacting them with specific fatty acids. Suitable polyglycerol esters can be hexaglycerol monooleate, octaglycerol monostearate and/or octaglycerol monooleate. Sorbitan esters of fatty acids used in certain embodiments of the present invention can be sorbitan monostearate, sorbitan monooleate and/or sorbitan mono palmitate. Furthermore, any possible combinations of compounds belonging to the above mentioned classes can be used.
  • the present methods are characterized in that the mixture is aerated after adding of the foam-stabilizing agent and sodium bicarbonate and/or after cooling of the mixture. This does not exclude that other aeration steps are also being carried out, and according to certain embodiments, one, two or preferably all of the optional aeration steps are carried out in the present methods. Also it is not excluded that aeration is carried out already concomitantly with a mixing and/or addition step.
  • the method of aeration is not particularly restricted and can involve e.g. an injection of air, a whipping in of air - e.g. a mixing with a sufficiently large paddle/shuffle and/or a sufficient paddle movement and/or at sufficient lower speed so that air can be introduced into the mixture, bubbling air through the mixture, etc.
  • aeration can be carried out using a sufficient mixing machine similar to a mixer for preparing a mousse, e.g. a Krups Prep & Cook HP 5031 mousse whipping shuffle, and or by injection air with an aerator, e.g. like
  • Mondomix aerator Mondomix aerator. Aeration can be carried out at a suitable temperature, e.g. at room temperature (around 20 - 24 °C), 30 - 80°C, e.g. to 35 - 75°C, preferably between and including 30 - 60°C. In the present methods it is not excluded that aeration is carried out concomitantly with a mixing and/or in a step of adding an ingredient, e.g. when using whipping.
  • ingredients for forming the aerosol-generating foam such as the aerosol-forming agent, the form-foaming agent, the foam- stabilizing agent, the tobacco-containing agent, the inhalable agent, the at least one non-tobacco flavoring agent, sodium bicarbonate and the solvent are not particularly restricted.
  • a gas used for aeration is not particularly restricted, and can be e.g. air.
  • further components can be admixed. According to certain embodiments, essentially no further components or no further components are admixed, though.
  • Propylene glycol as used in the present invention is to be understood as propane-1 ,2-diol.
  • Glycerin or glycerol as used in the present invention is to be understood as 1 ,2,3-propanetriol.
  • the aerosol forming agent can further comprise water. According to certain embodiments, no water is contained, though, since water in aerosol form can burn the mouth of a user. Water can be contained in an amount of 0 - 15 wt.- % of the weight of the foam, e.g. 5 - 10 wt.-%.
  • Table 1 Components used in different sodium bicarbonate percentage.
  • Table 1 shows tobacco mousse comprising different percentage of sodium bicarbonate were investigated.
  • the ingredients given in the respective column of Table 1 were mixed and combined as follows.
  • the propylene glycol, the glycerin and the purified water were whipped and aerated for 5-10 min at 45°C using a Krups Prep & Cook FIP5031 mousse whipping shuffle.
  • the speed has to be adjusted so that the volume visibly increases and small bubbles appear and partly stay in the foam. If whipping is too fast then mixing will take over and the foamy structure is going to collapse, thus back to fluid.
  • whipping is started slowly and the whipping speed is slowly increased as the foam begins to develop a lighter, more mousse-like texture; the speed is backed-off by about 10% if it is noticed that the mousse seems to be reducing its mousse-like texture and becoming seemingly less aerated.
  • the gum was added and the mixture was whipped and aerated for 5-10 minutes. Afterwards the tobacco powder was added and whipping and aeration were carried out for 5-10 min. The binder was added and the mixture was again whipped and aerated for 5-10 min. Afterwards the sodium bicarbonate with the desired percentage was added and the mixture was again whipped anf aerated for 5-10 min. Finally the mixture was cooled to 10°C within 10 minutes and aged at 45°C or at room temperature for 8 hours.
  • Table 2 Pore volumes (Aeration values) measured from different samples.
  • Example 2 Results obtained from the Example 1 were shown in the Table 2.
  • the samples 2, 3 and 4 which comprised sodium bicarbonate in the mixture showed higher pore volumes or aeration values compared to the control sample (sample 1).
  • Sample 3 which contained 1 % of sodium bicarbonate showed the highest increased of pore volume (12%). It is however noted that higher percentage of sodium bicarbonate (2%) in the mixture did not give higher aeration values as expected. For this reason, it is preferably to have one percent or less than 1 % of sodium bicarbonate in the foam mixture.
  • Samples 2 and 3 achieved a good puff impact and smooth, nice tobacco sweetness when heating at 245°C with 20s until the first dry puff using an aerosol generation apparatus, Sample 3 in comparison of the Sample 2 achieved a bit higher sweetness, and had a higher impact.
  • a maximum binding force can be created by suitably increasing the reaction time toward thermodynamic equilibrium.
  • the time to achieve equilibrium is determined by kinetic effects which seem to be dependent on the product temperature mainly in the aging and binding process step.
  • the temperature settings also can relate to the level of volatility of flavors to keep suitable tobacco mousse heating properties. Such as vapor release and flavor release, creating a distinguished taste and smell.
  • Example 2 The process was carried out as in Example 1 , except that mixing and aeration were carried out with an aerator, Mondomix at 3000 rpm. Again, an aeration of 5 - 20 % was achieved. Also aeration with increased pressure of 2.5 bar as counter pressure (30 mm VA) did not increase this level.
  • Example 3 and 4 Samples 2 and 3 as in Example 1 were produced in the same way, except that sodium carbonate were added into the foam instead of the sodium bicarbonate, e.g. together with tobacco, reducing the amount of tobacco accordingly. Less aeration values (6 % and 8 %, respectively) were achieved compared to the Samples 2 and 3 in the Example 1 .

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • General Chemical & Material Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Toxicology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Agronomy & Crop Science (AREA)
  • Botany (AREA)
  • Manufacture Of Tobacco Products (AREA)

Abstract

La présente invention concerne une aération améliorée de mousse, ainsi qu'un procédé de formation de ladite mousse pour un article de génération d'aérosol, consistant à (a) mélanger un agent de formation d'aérosol, un agent de formation de mousse et éventuellement un solvant et/ou au moins un agent aromatisant hors tabac, de préférence sous chauffage ; (b) ajouter au mélange un agent contenant du tabac et/ou un agent inhalable ; (c) ajouter un agent de stabilisation de mousse ; (d) refroidir le mélange ; le mélange étant aéré après l'ajout de l'agent de stabilisation de mousse et/ou après le refroidissement du mélange, du bicarbonate de sodium étant ajouté au mélange avant le refroidissement du mélange, la teneur en bicarbonate de sodium étant inférieure à 1 % en poids sur la base du poids total de la mousse.
EP20803195.5A 2019-11-14 2020-11-12 Procédé de formation d'une mousse pour un article de génération d'aérosol et mousse correspondante Pending EP4057848A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
EP19209042 2019-11-14
PCT/EP2020/081910 WO2021094453A1 (fr) 2019-11-14 2020-11-12 Procédé de formation d'une mousse pour un article de génération d'aérosol et mousse correspondante

Publications (1)

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EP4057848A1 true EP4057848A1 (fr) 2022-09-21

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US (1) US20220386682A1 (fr)
EP (1) EP4057848A1 (fr)
JP (1) JP2023501121A (fr)
WO (1) WO2021094453A1 (fr)

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023118211A1 (fr) * 2021-12-20 2023-06-29 British American Tobacco (Investments) Limited Matériau de génération d'aérosol comprenant un ou plusieurs agents de formation de mousse
WO2023135284A1 (fr) 2022-01-14 2023-07-20 Jt International Sa Article de génération d'aérosol
WO2023135285A1 (fr) 2022-01-14 2023-07-20 Jt International Sa Substrat de génération d'aérosol et article contenant le substrat
WO2023242822A1 (fr) * 2022-06-17 2023-12-21 Nicoventures Trading Limited Feuille revêtue de tabac et consommable fabriqué à partir de celle-ci

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL281949A (fr) * 1961-08-11
US3746012A (en) * 1972-01-17 1973-07-17 Philip Morris Inc Method of making expanded reconstituted tobacco
US4506684A (en) * 1978-08-02 1985-03-26 Philip Morris Incorporated Modified cellulosic smoking material and method for its preparation
US4333484A (en) * 1978-08-02 1982-06-08 Philip Morris Incorporated Modified cellulosic smoking material and method for its preparation
DK556089D0 (da) * 1989-11-07 1989-11-07 Anders Dam Ryge supplement eller rygeerstatningsprodukt
EA202192364A3 (ru) * 2016-12-29 2022-02-28 Джт Интернэшнл С.А. Табачный мусс
CN107616541A (zh) * 2017-10-13 2018-01-23 上海烟草集团有限责任公司 一种发烟制品及其制备方法和用途

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WO2021094453A1 (fr) 2021-05-20
US20220386682A1 (en) 2022-12-08
JP2023501121A (ja) 2023-01-18

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