Load fragrance composition and use thereof, composition for preparing a substrate segment, composition for preparing a function segment, and aerosol generating article

Abstract

The present application provides a flavor carrier composition and use thereof, a composition for preparing a substrate segment, a composition for preparing a functional segment, and an aerosol generating article. The flavor carrier composition is suitable for use in an aerosol generating article and includes an amphiphilic substance. The flavor carrier composition of the present application can improve the retention rate of a flavor component.

Description

Technical Field

[0001] This application relates to the field of tobacco technology, and in particular to a flavoring composition and its use, a composition for preparing a matrix segment, a composition for preparing a functional segment, and an aerosol-generating article. Background Technology

[0002] Aerosol generating products can form aerosols through ignition or through a heat-not-burning method. Common heat-not-burning aerosol generating products include an aerosol generating matrix (matrix section) and functional sections (such as a pre-plug section, cooling section, support section, and filter section). Heat-not-burning aerosol generating products utilize an external heat source to heat the aerosol generating matrix just enough to release aerosols without combustion.

[0003] The use of heated but non-combustible aerosols to produce low-harm tobacco products with reduced tar and harm is gradually becoming an industry trend. However, aerosol products with reduced tar and harm have quality defects such as weaker tobacco flavor and aroma, resulting in a poorer smoking experience.

[0004] Therefore, there is a need for an improved aerosol-generating article that can solve or mitigate at least one of the problems existing in the prior art. Summary of the Invention

[0005] In view of this, the purpose of this application is to provide a fragrance-carrying composition and its uses, a composition for preparing a matrix segment, a composition for preparing a functional segment, and an aerosol-generating article. The fragrance-carrying composition of this application can improve the retention rate of fragrance components.

[0006] The first aspect of this application provides a fragrance-carrying composition suitable for aerosol-generating articles, comprising an amphiphilic substance.

[0007] In some embodiments, the amphiphilic substance is selected from one or more of polylactic acid, ethyl cellulose, polyvinyl alcohol, octenyl succinate starch ester, and gelatin.

[0008] In some embodiments, the fragrance-carrying composition further includes a crosslinking agent selected from one or more of genipin, citric acid, citrate, and sodium phytate.

[0009] In some embodiments, the mass ratio of the amphiphilic substance to the crosslinking agent in the fragrance composition is 1:0.01 to 1:5.

[0010] In some embodiments, the fragrance-carrying composition further includes an emulsifier selected from one or more of caprylic / capric glyceride, glyceryl stearate, glyceryl triacetate, and glyceryl diacetate.

[0011] In some embodiments, the mass ratio of the amphiphilic substance to the emulsifier is 1:0.01 to 1:5.

[0012] A second aspect of this application provides a composition for preparing a matrix segment, the composition comprising: the fragrance-carrying composition described in the first aspect of this application; a skeleton component; a fragrance component; a binder component; and a smoke-generating component.

[0013] A third aspect of this application provides a composition for preparing functional segments, the composition comprising: the fragrance-carrying composition described in the first aspect of this application; a skeleton component; a fragrance component; and a binder component.

[0014] In some embodiments, the content of the fragrance-carrying composition is 1%-30% based on the total weight of the composition.

[0015] In some embodiments, in the composition used to prepare the matrix segment, the skeleton component is selected from one or more of biomass raw materials and plant components; preferably, the biomass raw material is selected from one or more of cellulose, hemicellulose and lignin; the plant component is selected from one or more of tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust and aromatic plants; more preferably, the content of the skeleton component is 50%-80% based on the total weight of the composition.

[0016] In some embodiments, in the composition used to prepare the functional segment, the skeleton component is selected from one or more of cellulose acetate, dimethyl terephthalate, polylactic acid, polyvinyl alcohol, activated carbon, and polyetheretherketone; preferably, the content of the skeleton component is 50%-80% based on the total weight of the composition.

[0017] In some embodiments, the flavoring component is selected from one or more of tobacco extract, flavor plant extract, extract, essential oil, absolute oil, megastigmatrienone, neophytadiene, geraniol, nerol, menthol, and raspberry ketone.

[0018] In some embodiments, the content of the flavoring component is 0.1%-5% based on the total weight of the composition.

[0019] In some embodiments, the adhesive module is selected from one or more of tamarind polysaccharide, guar gum, glucomannan, gluconolan, xanthan gum, and modified cellulose, wherein the modified cellulose is selected from one or more of sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose.

[0020] In some embodiments, the content of the adhesive module is 1%-10% based on the total mass of the composition.

[0021] In some embodiments, the smoke-generating agent component is selected from one or more of the following: monohydric alcohol; dihydric alcohol; polyhydric alcohol; monocarboxylic acid, dicarboxylic acid, or esters formed from polycarboxylic acid and fatty alcohol.

[0022] In some embodiments, the content of the smoke-generating agent module is 5%-30% based on the total mass of the composition.

[0023] The fourth aspect of this application provides an aerosol generating article comprising a matrix segment and a functional segment, wherein the matrix segment is prepared using the composition described in the second aspect of this application, and the functional segment is prepared using the composition described in the third aspect of this application.

[0024] In some embodiments, the matrix segment and / or functional segment include micropores.

[0025] In some embodiments, the matrix segment and / or functional segment further includes at least one airway opening that extends through at least one end of the matrix segment and / or functional segment along its length.

[0026] In some embodiments, the composition for preparing the matrix segment is prepared by an integral molding process to prepare the matrix segment.

[0027] In some embodiments, the composition for preparing the functional segment is prepared by a one-piece molding process.

[0028] In some embodiments, the aerosol generating article is a heat-non-combustible aerosol generating article.

[0029] The fifth aspect of this application also provides the use of a fragrance-carrying composition in aerosol-generated articles to improve the retention rate of fragrance components, wherein the fragrance-carrying composition is the fragrance-carrying composition described in the first aspect of this application.

[0030] In this application, the fragrance-carrying composition includes an amphiphilic substance that is both hydrophilic and lipophilic, providing binding sites for fragrance components, improving the retention rate of fragrance in the matrix or functional segment during molding, and facilitating the sustained release of fragrance components in the matrix and / or functional segment during the use of the aerosol-generated product. The fragrance-carrying composition further includes a crosslinking agent, which shortens the distance between the amphiphilic substances through covalent and non-covalent interactions, further facilitating the sustained release of fragrance components. The fragrance-carrying composition may also include an emulsifier, which interacts with the amphiphilic substance, facilitating the binding of fragrance components to the amphiphilic substance, increasing the interaction force between the fragrance component and the amphiphilic substance, further improving the retention of fragrance components during molding, and facilitating the sustained release of fragrance during the use of the aerosol-generated product. The compositions for preparing the matrix segment and the compositions for preparing the functional segment of this application, including the above-mentioned fragrance-carrying composition, can improve the retention of fragrance components in the matrix and functional segments during molding, and facilitate the sustained release of fragrance during the use of the aerosol-generated product. Attached Figure Description

[0031] Figure 1 This is a schematic diagram of the structure of an aerosol-generating article according to an embodiment of this application.

[0032] Figure 2 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0033] Figure 3 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0034] Figure 4 This is a schematic diagram of the structure of an aerosol-generating article according to another embodiment of this application.

[0035] Figure 5 This is a structural schematic diagram of a matrix segment or functional segment in an embodiment of this application, along a cross section perpendicular to the length direction.

[0036] Figure 6 This is a structural schematic diagram of a matrix segment or functional segment in another embodiment of this application, along a cross section perpendicular to the length direction.

[0037] Figure 7 This is a structural schematic diagram of a matrix segment or functional segment in a cross section perpendicular to the length direction, according to another embodiment of this application.

[0038] Figure 8 The sustained-release curves are for the flavor components of Examples 3, 6, 7 and Comparative Example 1 of this application.

[0039] Figure 9 The sustained-release curves are for the flavor components of Examples 9, 11-12 and Comparative Example 2 of this application. Detailed Implementation

[0040] The technical solutions in the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. It should be understood that the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments in this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0041] Throughout this specification, unless otherwise specified, the terminology used herein should be understood as having the meaning commonly used in the art. Therefore, unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains. In the event of any conflict, this specification shall prevail.

[0042] It should be noted that, in the embodiments of this application, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a method or apparatus that includes a list of elements includes not only the elements expressly stated, but also other elements not expressly listed, or elements inherent to implementing the method or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other related elements in the method or apparatus that includes that element.

[0043] It should be noted that the terms "first," "second," and "third" used in the embodiments of this application are merely to distinguish similar objects and do not represent a specific ordering of objects. It is understood that "first," "second," and "third" can be interchanged in a specific order or sequence where permitted. It should be understood that the objects distinguished by "first," "second," and "third" can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in an order other than those described herein.

[0044] In heat-not-combustible aerosol products, a well-designed fragrance can enhance the user's sensory experience. The fragrance materials and processes are key factors determining the fragrance effect of heat-not-combustible aerosol products.

[0045] In view of this, this application provides a fragrance-carrying composition suitable for aerosol-generating articles, the fragrance-carrying composition comprising an amphiphilic substance.

[0046] In this application, amphiphilic substances refer to compounds whose molecular structure simultaneously contains hydrophilic (polar) groups and hydrophobic (nonpolar) groups. This structural characteristic allows them to orient themselves at the interface between the aqueous and non-aqueous phases, reducing interfacial tension and thus exhibiting emulsifying, solubilizing, and foaming properties. The fragrance components used in aerosol-generated products are typically lipophilic substances, while the backbone components usually contain a large number of hydrophilic substances. By including amphiphilic substances in the fragrance carrier composition, binding sites can be provided for the fragrance components in the aerosol-generated product, increasing the interaction between the fragrance components and other components in the aerosol-generated product. This is beneficial for improving the retention rate of the fragrance components during the molding process in the preparation of the aerosol-generated product and for the sustained release of the fragrance during use.

[0047] In some embodiments, the amphiphilic substance is selected from one or more of polylactic acid, ethyl cellulose, polyvinyl alcohol, octenyl succinate starch ester, and gelatin. The flavor-carrying composition includes the above-mentioned amphiphilic substance, possessing both hydrophilic and lipophilic properties. This allows the amphiphilic substance to provide binding sites for the flavor components, which is beneficial for improving the retention rate of the flavor components during the molding process and for the sustained release of the flavor components. Furthermore, the above-mentioned amphiphilic substances can be used in the food industry and have undergone strict food safety certification and evaluation, being non-toxic and harmless to humans, thereby improving the safety of aerosol-generated products.

[0048] In some embodiments, the fragrance-carrying composition further includes a crosslinking agent selected from one or more of genipin, citric acid, citrate, and sodium phytate. The crosslinking agent forms a three-dimensional network structure with other molecules, such as amphiphilic substances, through intermolecular interactions, thereby improving the loading efficiency of the amphiphilic substances on the fragrance and further facilitating the sustained release of the fragrance components.

[0049] In some embodiments, the mass ratio of the amphiphilic substance to the crosslinking agent in the fragrance composition is 1:0.01 to 1:5. Maintaining the mass ratio of the amphiphilic substance to the crosslinking agent within this range is beneficial for improving the retention rate of the fragrance components. Exemplarily, the mass ratio of the amphiphilic substance to the crosslinking agent can be 1:0.01, 1:0.2, 1:0.25, 1:0.5, 1:1, 1:2, 1:3, 1:4, 1:5, or a value within a range of any two of these values.

[0050] In some embodiments, the fragrance-carrying composition further includes an emulsifier selected from one or more of glyceryl caprylate, glyceryl stearate, glyceryl triacetate, and glyceryl diacetate. Using the above-mentioned emulsifier helps to improve the dispersibility of the fragrance components and enhance the interaction between the fragrance components and the amphiphilic substances, thereby increasing the retention rate of the fragrance components during the molding process.

[0051] In some embodiments, the mass ratio of the amphiphilic substance to the emulsifier is 1:0.01 to 1:5. Maintaining this mass ratio within the aforementioned range is beneficial for improving the retention rate of the fragrance component during the molding process and enhancing its sustained-release effect. For example, the mass ratio of the amphiphilic substance to the emulsifier can be 1:0.01, 1:0.2, 1:0.25, 1:0.5, 1:1, 1:2, 1:3, 1:4, 1:5, or a value within a range of any two of these values.

[0052] This application does not specifically limit the application of the above-mentioned fragrance-carrying composition, and it can be used in any part of the preparation of heat-not-combustible aerosol generating products that requires fragrance addition. For example, it can be used in the matrix section (i.e., aerosol generating matrix) and functional sections of the aerosol generating product, such as one or more of the pre-stop section, support section, cooling section, and filtration section. In some embodiments, the fragrance-carrying composition is used to prepare one or more of the matrix section and functional sections of the heat-not-combustible aerosol generating product, wherein the functional sections include one or more of the pre-stop section, support section, cooling section, and filtration section.

[0053] A second aspect of this application provides a composition for preparing a matrix segment, the composition comprising the above-described fragrance-carrying composition; a skeleton component; a fragrance component; a binder component; and a smoke-generating component.

[0054] In this application, the matrix segment refers to the component in an aerosol generating article that is heated by a heating element to generate aerosols, and the matrix segment includes an aerosol generating matrix.

[0055] A third aspect of this application provides a composition for preparing functional segments, the composition comprising the above-described fragrance-carrying composition, a skeleton component, a fragrance component, and a binder component.

[0056] In this application, a functional section refers to a component in an aerosol-generating article that performs different functions besides the matrix section. Exemplarily, the functional sections include a pre-plug section, a support section, a cooling section, and a filter section. The pre-plug section is typically located at the end of the matrix section furthest from the user's lips, and is usually in direct contact with the matrix section. It maintains the relative position of the matrix section, preventing its movement, and also prevents the aerosol generated by the matrix section from condensing and flowing back into the aerosol-generating device, thus serving a cleaning function. The support section is typically located at the end of the matrix section closest to the user's lips, and is usually in direct contact with the matrix section, serving to maintain the relative position of the matrix section. The cooling section is typically located at the end of the support section closest to the user's lips, and is used to reduce the temperature of the aerosol. The cooling section can also be located at the end of the matrix section closest to the user's lips, and is in direct contact with the matrix section, simultaneously serving a support and cooling function. The filter section is typically located at the end of the cooling section closest to the user's lips, and is usually in direct contact with the lips to inhale the aerosol into the oral cavity. The filter section is typically used to filter large particles in the aerosol and adsorb some substances, and also has a further cooling function.

[0057] In this application, the matrix segment and / or functional segment are described as having a "porous structure." A porous structure refers to a structure with high porosity, which ensures efficient aerosol generation. Furthermore, the interconnected pores form a three-dimensional, interconnected network structure, which helps reduce suction resistance. In this application, the "porous structure" is a microporous structure. Micropores are formed by the gaps between the components of the composition after molding, where the composition is used to prepare the matrix segment and / or functional segment. These micropores are irregular and belong to the category of pores in a microscopic sense. The size of the micropores is determined by the gaps between the powder components after molding.

[0058] In this application, the skeleton component is used to shape the matrix segment and functional segment, giving them a certain strength, providing a supporting structure for the matrix segment and functional segment, and providing a carrier for other components in the matrix segment and functional segment. The flavoring component is used to provide nicotine and / or tobacco characteristic aromas, such as licorice, roasted sweetness, etc. The binder component achieves close contact with the interfaces of the various component materials in the composition by wetting them, generating intermolecular attraction, thereby binding the powders, liquids, etc., of the component materials. In the composition used to prepare the matrix segment, the smoke-generating agent component generates a large amount of aerosol when the non-combustible aerosol-generating article is heated, increasing the amount of smoke in the aerosol-generating article.

[0059] The inclusion of the above-mentioned fragrance-carrying composition in the compositions for preparing the matrix segment and the compositions for preparing the functional segment of this application is beneficial to improving the retention rate of fragrance components and the production of heated non-combustible aerosol articles during the preparation of the matrix segment.

[0060] In this application, "fragrance retention rate" is quantitatively calculated as the ratio of fragrance component content in the matrix segment or functional segment before and after molding. The fragrance retention rate (%) = [fragrance component content after molding / fragrance component content before molding] × 100%. The content of the fragrance component can be measured using methods known to those skilled in the art, such as gas chromatography-mass spectrometry. In this application, the terms "fragrance component retention rate" and "fragrance retention rate" are used interchangeably.

[0061] In this application, sustained release of the flavoring component refers to the slow and continuous release of the flavoring component from the carrier (e.g., matrix segment or functional segment), thereby prolonging its release time and maintaining release consistency. The sustained release of the flavoring component can be measured using test methods known in the art. An exemplary test method is as follows: The carrier is made into an aerosol-generating article, and smoke is inhaled using a fully automatic rotary heated non-combustible cigarette smoking machine (Puffman-X500E-L). The inhalation parameters are: inhalation volume 55ml, inhalation time 2s, inhalation interval 28s, number of puffs 10, and an inhalation curve of bell curve. An aerosol is captured using a Whatman 44mm Cambridge filter (F319-04), and the flavoring component in the aerosol captured by the Cambridge filter is quantitatively tested before and after inhalation using, for example, chromatography. The content of the flavoring component in the aerosol captured after a certain number of puffs is measured, and the release rate of the flavoring component is calculated according to the following formula:

[0062] Release rate of fragrance components (%) = (Total amount of fragrance components in the captured aerosol / Total amount of fragrance components in the carrier) * 100%.

[0063] By measuring the release rate of the fragrance components in the aerosol captured after each puff during simulated inhalation, a sustained-release curve of the fragrance components during inhalation can be obtained. In some embodiments, the content of the fragrance-carrying composition is 1%-30% based on the total weight of the composition used to prepare the matrix segment.

[0064] In some embodiments, the content of the fragrance-carrying composition is 1%-30% based on the total weight of the composition used to prepare the functional segment. By keeping the content of the fragrance-carrying composition within this range, it is beneficial to improve the fragrance retention rate during the preparation process of the composition used to prepare the matrix segment or the composition used to prepare the functional segment, and to enhance the sustained-release effect of the fragrance during use of the aerosol-generated article. Exemplarily, the content of the fragrance-carrying composition, based on the total weight of the composition, can be 1%, 5%, 10%, 15%, 20%, 25%, 30%, or a value within a range of any two of these values.

[0065] In some embodiments, in the composition used to prepare the matrix segment, the skeleton component is selected from one or more of biomass raw materials and plant components. In some embodiments, in the composition used to prepare the matrix segment, the biomass raw material is selected from one or more of cellulose, hemicellulose, and lignin; the plant component is selected from one or more of tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants. Among the biomass raw materials, cellulose and hemicellulose can help shape the matrix segment and maintain its structural stability, while lignin can act as a shaping aid and binder. Endogenous substances in the plant components, such as nicotine, enter the human bloodstream and promote the pituitary gland to produce dopamine, thereby achieving physiological satisfaction. By selecting the skeleton component from the above-mentioned substances, it is possible to help shape the matrix segment and maintain its structural stability, which is beneficial to improving the stability of manufacturing and product performance.

[0066] In some embodiments, the content of the skeleton component is 50%-80% based on the total weight of the composition used to prepare the matrix segment. By keeping the content of the skeleton component within the above range, a framework is provided for the matrix segment, and a carrier is provided for other substances in the matrix segment, such as smoke-generating agents, fragrance components, etc. Exemplarily, the content of the skeleton component, based on the total mass of the composition, can be 50%, 52%, 60%, 65%, 70%, 75%, 80%, or a value between any two of these values.

[0067] In some embodiments, in the composition used to prepare the functional segments, the backbone component is selected from one or more of cellulose acetate, dimethyl terephthalate, polylactic acid, polyvinyl alcohol, activated carbon, and polyetheretherketone. Using the above-mentioned backbone component facilitates the molding of the functional segments and provides good biocompatibility.

[0068] In some embodiments, the content of the skeleton component is 50%-80% based on the total weight of the composition used to prepare the functional segment. Maintaining the skeleton component content within this range facilitates the molding of the matrix segment and provides good mechanical strength, enabling it to act as a supporting skeleton and provide a carrier for other components in the matrix segment. Exemplarily, the content of the skeleton component, based on the total weight of the composition, can be 50%, 55%, 60%, 65%, 70%, 75%, 80%, or a value within a range of any two of these values.

[0069] In some embodiments, the flavoring component is selected from one or more of tobacco extracts, aromatic plant extracts, extracts, essential oils, absolutes, stigmasterones, neophytadienes, geraniol, nerol, menthol, and raspberry ketones. Optionally, the flavoring component is selected from one or more of stigmasterones, neophytadienes, geraniol, nerol, menthol, and raspberry ketones. Using the above-mentioned flavoring components can provide a richer aroma profile to the aerosol-generating matrix, thereby enhancing the inhalation experience.

[0070] In some embodiments, the content of the fragrance component is 0.1%-5.0% based on the total mass of the composition used to prepare the matrix segment. In some embodiments, the content of the fragrance component is 0.1%-5.0% based on the total mass of the composition used to prepare the functional segment. By keeping the fragrance component within the above range, it is beneficial to improve the aroma richness of the aerosol-generated article, thereby enhancing the inhalation experience. Exemplarily, the content of the fragrance component, based on the total mass of the composition, can be 0.1%, 0.5%, 1.0%, 1.5%, 2.0%, 2.5%, 3.0%, 3.5%, 4.0%, 4.5%, 5.0%, or a value between any two of these values.

[0071] In some embodiments, the adhesive component is selected from one or more of tamarind polysaccharide, guar gum, glucomannan, currant gum, xanthan gum, and modified cellulose, wherein the modified cellulose is selected from one or more of sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. The above-mentioned adhesive achieves close contact with the interfaces of the various component materials in the composition through wetting, generating intermolecular attraction, thereby serving to bond the powders, liquids, etc., of the component materials. Optionally, the adhesive is selected from one or more of guar gum, sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose.

[0072] In some embodiments, the content of the binder component is 1%-10% based on the total mass of the composition used to prepare the matrix segment. In some embodiments, the content of the binder component is 1%-10% based on the total mass of the composition used to prepare the functional segment. By keeping the content of the binder component within the above range, it is beneficial to tightly bond the raw material components in the composition, thereby facilitating the molding of the individual components in the composition through a one-piece molding process. Exemplarily, the content of the binder component, based on the total mass of the composition, can be 1%, 2%, 3%, 4%, 5%, 6%, 7%, 8%, 9%, 10%, or a value between any two of these values.

[0073] In some embodiments, the smoke-generating component is selected from one or more of the following: monohydric alcohols; dihydric alcohols; polyhydric alcohols; esters formed from monocarboxylic acids, dicarboxylic acids, or polycarboxylic acids and fatty alcohols. Using the above substances as smoke-generating components is beneficial for providing a large amount of smoke, thereby increasing the amount of smoke generated by the aerosol-generating matrix. In some embodiments, the smoke-generating component is selected from one or more of propylene glycol, glycerol, 1,3-butanediol, tetraethylene glycol, triacetin, triethyl citrate, a mixture of diacetin, methyl benzoate, and triglyceride. Optionally, the smoke-generating component is selected from one or more of propylene glycol, glycerol, 1,3-butanediol, and tetraethylene glycol. Optionally, the smoke-generating component is selected from one or more of propylene glycol and glycerol.

[0074] In some embodiments, the content of the smoke-generating component is 5%-30% based on the total mass of the composition used to prepare the matrix segment. Keeping the content of the smoke-generating component within this range is beneficial for increasing the aerosol capture rate generated by the aerosol-generating matrix. Exemplarily, the content of the smoke-generating component, based on the total mass of the composition, can be 5%, 8%, 10%, 15%, 18%, 20%, 25%, 30%, or a value between any two of these values.

[0075] In some embodiments, the composition for preparing the matrix segment, by total mass of the composition, comprises: 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; 5%-30% of a smoker component; and 1%-20% of an amphiphilic substance.

[0076] In some embodiments, the composition for preparing the matrix segment, by total mass of the composition, comprises: 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; 5%-30% of a smoker component; and 1%-20% of an amphiphilic substance and 0.2%-5% of a crosslinking agent.

[0077] In some embodiments, the composition for preparing the matrix segment, by total mass of the composition, comprises: 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; 5%-30% of a smoker component; and 1%-20% of an amphiphilic substance; 0.2%-5% of a crosslinking agent; and 0.2%-5% of an emulsifier.

[0078] In some embodiments, the composition for preparing the functional segment comprises, by weight of the total composition, 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; and 1%-20% of an amphiphilic substance.

[0079] In some embodiments, the composition for preparing the functional segment, by weight of the total composition, comprises: 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; and 1%-20% of an amphiphilic substance and 0.2%-5% of a crosslinking agent.

[0080] In some embodiments, the composition for preparing the functional segment, by weight of the total composition, comprises: 50%-80% of a skeleton component; 0.1%-5% of a fragrance component; 1%-10% of a binder component; and 1%-20% of an amphiphilic substance; 0.2%-5% of a crosslinking agent; and 0.2%-5% of an emulsifier.

[0081] In some embodiments, the matrix segment is used to heat non-combustible aerosols to generate articles.

[0082] In some embodiments, the functional segment is used to heat non-combustible aerosols to generate articles.

[0083] In some embodiments, the composition is prepared by a one-piece molding process to fabricate the matrix segment and / or functional segment. The matrix segment and functional segment prepared by the one-piece molding process overcome the problems of filament shedding and difficulty in cleaning during the suction process of aerosol-generated articles. This improves the user experience.

[0084] In this application, "integrated molding process" includes injection molding, compression molding, or extrusion molding. Extrusion molding refers to a processing method in which a raw material composition is added to an extruder, and the material is simultaneously heated and plasticized by the action between the extruder barrel and screw, and continuously pushed forward by the screw through the die head to form products or semi-finished products of various cross-sections. The matrix segment and functional segment formed by extrusion molding are strip-shaped. Because the matrix segment and functional segment are an integrated structure, they remain a single medium after heating or cessation of heating, preventing disintegration and shedding. This helps reduce problems such as aerosol generation, matrix filament shedding, and difficulty in cleaning.

[0085] This application also provides a matrix segment prepared using the composition described above for preparing the matrix segment.

[0086] This application also provides a functional segment, which is prepared using the above-described composition for preparing the functional segment.

[0087] In some embodiments, the matrix segment and / or functional segment include micropores. Micropores refer to the microscopic pores formed between the components after the composition used to prepare the matrix segment and / or functional segment is molded. This facilitates aerosol formation.

[0088] In some embodiments, the cross-sectional area of ​​the micropore is 0.7 nm. 2 ~710μm 2 Alternatively, the hydraulic diameter of the micropores is 10 nm to 30 μm.

[0089] In some embodiments, the cross-sectional area of ​​the micropore is 1963 nm. 2 ~20μm 2 Alternatively, the hydraulic diameter of the micropores is 50 nm to 5 μm.

[0090] In some embodiments, the matrix segment and / or functional segment further includes air passages that extend through at least one end of the matrix segment and / or functional segment along its length. This improves the air permeability of the matrix segment and / or functional segment.

[0091] In some embodiments, the airway openings extend through opposite ends of the matrix segment and / or functional segment along the length direction.

[0092] In some embodiments, the matrix segment and / or functional segment have multiple airway openings inside.

[0093] In some embodiments, the cross-sectional shape of the airway opening is circular, elliptical, racetrack-shaped, fan-shaped, or polygonal in a plane perpendicular to the length direction of the matrix segment and / or functional segment.

[0094] In some embodiments, the cross-sectional area of ​​the airway orifice is 0.0019 mm. 2 -30mm 2 Alternatively, the hydraulic diameter of the airway orifice is 0.05mm-6mm.

[0095] In some embodiments, the wall thickness of the spacer wall between adjacent airway openings is 10 μm to 800 μm.

[0096] This application also provides an aerosol generating article. Preferably, the aerosol generating article is a heat-non-combustible aerosol generating article. The aerosol generating article includes the matrix segment, functional segment, and encapsulation layer described above. The functional segment is disposed at one end of the aerosol generating matrix along its length, and the functional segment includes a cooling segment for lowering the aerosol temperature. The encapsulation layer covers the functional segment and the circumferential exterior of the aerosol generating matrix.

[0097] Aerosol generating products are used in conjunction with aerosol generating devices, which include heating components and power supply components. The power supply components provide electrical energy to the heating components, which convert the electrical energy into other forms of energy and apply them to the aerosol generating matrix in the matrix section, thereby heating the aerosol generating matrix to generate aerosols for users to inhale.

[0098] The following is in conjunction with the appendix Figure 1-4 The structure of the aerosol-generating article of this application is illustrated by way of example.

[0099] In some implementations, reference Figures 1 to 2 The aerosol generating article includes a matrix segment 20, a functional segment 30, and an encapsulation layer (not shown). The encapsulation layer covers the circumferential exterior of the functional segment and the aerosol generating matrix.

[0100] The matrix segment 20 has two axial ends, namely a proximal lip end 20a and a distal lip end 20b. The proximal lip end 20a refers to the end of the matrix segment 20 that is closer to the user's lips when the user uses the aerosol-generated product, and the distal lip end 20b refers to the end of the matrix segment 20 that is farther away from the user's lips when the user uses the aerosol-generated product.

[0101] This application does not limit the specific structure of the functional section 30, which includes at least one of the following: the front plug section 10, the filter section 31, the support section 32, and the cooling section 33.

[0102] The coating layer can protect the aerosol-generating matrix. The coating layer includes, but is not limited to, one or more of the following materials: fiber paper, metal foil, metal foil composite fiber paper, polyethylene composite fiber paper, polyethylene (PE), polybutylene terephthalate (PBAT).

[0103] In some implementations, please refer to Figure 1 and Figure 2 The functional section 30 includes one or more of the following: a filter section 31, a support section 32, and a cooling section 33. The functional section is located near the lip end 20a of the matrix section 20.

[0104] In some implementations, such as Figure 1 As shown, the functional segment 30 includes a filter segment 31, which is disposed near the lip end 20a of the matrix segment 20 along its axial direction. The aerosol generated by the aerosol generating matrix is ​​transported to the filter segment under suction negative pressure. The filter segment is used to filter and / or adsorb some particulate matter and harmful substances in the aerosol, improving the user's suction experience and enhancing the safety of the aerosol-generated products. Furthermore, the process of the aerosol being loosened by the filter segment before reaching the user can reduce the temperature of the aerosol, mitigating the "burning" sensation when the user inhales the aerosol.

[0105] In some implementations, such as Figure 2 The functional section includes a filter section 31, a support section 32, and a cooling section 33. The support section 32 is located at one end of the matrix section 20 along its axial direction, one end of the cooling section 33 is located at the end of the support section 32 away from the matrix section 20 along its axial direction, and the filter section 31 is located at the other end of the cooling section 33.

[0106] The support section 32 can connect and support the matrix section 20 and the cooling section 33 at both ends. The cooling section 33 is used to reduce the temperature of the aerosol so that the temperature of the aerosol flowing out of the filter section 31 is suitable and avoids the problem of the aerosol being "hot to the mouth".

[0107] Of course, the positions of the support section and the cooling section can also be interchanged, that is, the cooling section 33 is connected to one end of the matrix section 20 along the axis, and the two ends of the support section 32 are connected to the other end of the cooling section 33 and the filter section 31, respectively.

[0108] In some implementations, reference Figure 3 and Figure 4 The functional section 30 includes one or more of the following: a pre-plug section 10, a filter section 31, a support section 32, and a cooling section 33. One or more of the filter section 31, support section 32, and cooling section 33 are disposed at one end of the aerosol generating matrix 20 along its length, and the pre-plug section is disposed at the other end of the aerosol generating matrix 20 along its length. The encapsulation layer wraps around the circumferential exterior of the functional section and the matrix section. The pre-plug section improves the problem of aerosol generating matrix 20 detachment. Furthermore, the pre-plug section 10 can adsorb the condensed and refluxed aerosol after the aerosol generating product stops pumping, thereby avoiding the problem of aerosol condensation flowing downwards and causing internal contamination of the aerosol generating device, making it difficult to clean, and preventing cross-contamination of flavors when pumping different flavored aerosol generating products.

[0109] In some implementations, such as Figure 3 As shown, the aerosol generating article includes a pre-plug section 10, a matrix section 20, a cooling section 33, a filter section 31, and a coating layer (not shown). The pre-plug section is located at the distal lip end 20b of the aerosol generating matrix, the cooling section is located at the proximal lip end 20a of the aerosol generating matrix, and the filter section is located at the other end of the cooling section away from the aerosol generating matrix.

[0110] In some implementations, such as Figure 4 As shown, the aerosol generating article includes a pre-plug section 10, a matrix section 20, a support section 32, a cooling section 33, a filter section 31, and a coating layer. The pre-plug section is located at the distal lip end 20b of the aerosol generating matrix, the support section 32 is located at the proximal lip end 20a of the aerosol generating matrix, and the cooling section 33 is located at the end of the support section 32 axially away from the aerosol generating matrix 20. The filter section 31 is located at the end of the cooling section 33 axially away from the support section 32.

[0111] This application does not limit the structure of the functional segments and / or matrix segments. In some exemplary embodiments, such as Figure 5As shown, the functional segment and / or matrix segment itself has numerous micropores, which are interconnected to form micro-channels. It can be understood that after the functional segment and / or matrix segment is formed, the gaps between its raw material components constitute micropores. These micropores are irregular and belong to the category of pores in a microscopic sense. The size of the micropores is determined by the gaps between the powder components after the powder is formed.

[0112] During the aerosol generation process, the generated aerosols can enter the microchannels of the functional section. Under the negative pressure generated by suction, the aerosols are transported to the user for inhalation through the microchannels. In addition, as the aerosols flow through the microchannels, it also helps the functional section capture some substances in the aerosols and has a cooling effect.

[0113] In some embodiments, the cross-sectional area of ​​the micropore is 0.7 nm. 2 ~710μm 2 Alternatively, the hydraulic diameter of the micropores is 10 nm to 30 μm.

[0114] In some embodiments, the cross-sectional area of ​​the micropore is 1963 nm. 2 ~20μm 2 Alternatively, the hydraulic diameter of the micropores is 50 nm to 5 μm.

[0115] In some embodiments, the pre-plug section and the filter section themselves have numerous micropores, which are interconnected to form micro-air channels.

[0116] In other exemplary embodiments, such as Figure 6 and Figure 7 As shown, the functional segment and / or matrix segment includes micropores and at least one airway opening, which extends through at least one end of the functional segment and / or matrix segment along its length. The airway opening helps improve the air permeability of the functional segment and reduce suction resistance.

[0117] It should be noted that the airway pores mentioned above are pores in a macroscopic sense, while micropores are pores in a microscopic sense. The cross-sectional area of ​​an airway pore is much larger than that of a micropore, for example, at least 20 times larger.

[0118] In some embodiments, the cross-sectional area of ​​the airway pores is 20 to 60,000 times that of the micropores. This is beneficial for balancing the structural stability of the functional segment and / or matrix segment with the aerosol release rate. In some embodiments, the cross-sectional area of ​​the airway pores is 100 to 40,000 times that of the micropores.

[0119] The micro-airways are connected to the airway pores. Since the micro-airways are formed by the interconnection of micropores, the micropores are also connected to the airway pores. Furthermore, it can be understood that the interconnection between micropores can be partial, with some micropores not connected, or all micropores can be interconnected. A portion of the aerosol in the micro-airways can also be collected at the airway pores and delivered to the user's mouth under the negative pressure of suction. The airway pores help reduce the suction resistance for the user, improving the user experience. It should be noted that suction resistance is positively correlated with the flow resistance of the aerosol; the lower the flow resistance of the aerosol, the lower the perceived suction resistance, and vice versa.

[0120] In some embodiments, the airway opening extends through both ends of the functional segment and / or matrix segment along its length. This helps to reduce suction resistance for the user.

[0121] In one implementation, such as Figure 6 As shown, the functional segment and / or matrix segment has an airway opening inside. This helps to reduce the suction resistance for the user.

[0122] In some implementations, such as Figure 7 As shown, the functional segment and / or matrix segment have multiple airway pores inside. This is more conducive to reducing the suction resistance for the user.

[0123] In some embodiments, the cross-sectional shape of the airway opening is circular, elliptical, racetrack-shaped, fan-shaped, or polygonal in a plane perpendicular to the length direction of the functional segment and / or matrix segment.

[0124] In some embodiments, the cross-sectional area of ​​the airway orifice is 0.0019 mm. 2 -30mm 2 Alternatively, the hydraulic diameter of the air passage orifice is 0.05mm-6mm. In this application, the hydraulic diameter refers to the ratio of four times the cross-sectional area to the perimeter. In some preferred embodiments, the cross-sectional area of ​​the air passage orifice is 0.007mm². 2 ~7.1mm 2 (square millimeters). In some preferred embodiments, the hydraulic diameter of the airway orifice is 0.1 mm to 3 mm. This facilitates more uniform aerosol release and higher utilization.

[0125] In some embodiments, the wall thickness of the spacer wall between adjacent air passages is 10 μm to 800 μm. This facilitates heat penetration and diffusion, resulting in higher heat transfer efficiency, while also maintaining structural strength.

[0126] This application also provides an aerosol generation system. The aerosol generation system includes an aerosol generation apparatus with a heating component and the aerosol generation article described above. Specifically, the heating component heats and atomizes the aerosol generation matrix to generate aerosols.

[0127] The present application will be described in further detail below with reference to specific embodiments. The purpose of this description is merely illustrative and not intended to limit the scope of this disclosure.

[0128] Example

[0129] All non-tobacco raw materials used in the following examples are commercially available.

[0130] In the following examples, a screw extruder is used to extrude the raw material composition to obtain an aerosol generation matrix.

[0131] Example 1

[0132] Weigh out 75.5 parts by weight of cellulose, 15 parts by weight of glycerol (a smoke-generating agent), 5 parts by weight of sodium carboxymethyl cellulose (CMC-Na) (a binder), 3 parts by weight of raspberry ketone, and 2.5 parts by weight of a fragrance carrier composition, wherein the fragrance carrier composition comprises 2 parts by weight of octenyl succinate starch ester (SSOS) and 0.5 parts by weight of genipin. Mix the above raw material components evenly to obtain a composition for preparing the matrix segment. The obtained composition is then extruded into a matrix segment using an extrusion apparatus.

[0133] Examples 2-8

[0134] According to the formulation shown in Table 1 below, weigh each raw material in the composition and mix them evenly. Prepare the resulting composition into a matrix segment in the same manner as in Example 1.

[0135] Comparative Example 1

[0136] According to the formulation shown in Table 1 below, weigh each raw material in the composition and mix them evenly. Prepare the resulting composition into a matrix segment in the same manner as in Example 1. No fragrance-carrying composition was added in Comparative Example 1.

[0137] Table 1: Composition formulations for preparing matrix segments

[0138]

[0139]

[0140] In the table, " / " indicates that it has not been added.

[0141] The performance of the aerosol generating matrices of the above embodiments and comparative examples was tested according to the following test methods.

[0142] (1) Retention rate of fragrance components before and after molding

[0143] Content of fragrance components in the aerosol-generating matrix before and after aspiration.

[0144] Method for testing the content of fragrance components: The composition for preparing the matrix segment described above was extruded to form a long, thin molecule. Fragrance components, such as raspberry ketone, were extracted from the extruded matrix segment and then analyzed using an Agilent 8890GC 5977B MS gas chromatography-mass spectrometry system. The content of fragrance components in the extruded matrix segment was determined. The test results are shown in Table 2.

[0145] Fragrance component retention rate (%) = (Fragrance component content after molding / Fragrance component content before molding) × 100%

[0146] (2) Release rate of fragrance components during the suction process

[0147] The prepared matrix segment was fabricated into an aerosol-generating product. Smoke was drawn using a fully automatic rotary heated non-combustible cigarette smoking machine (Puffman-X500E-L). The drawing parameters were: drawing volume 55ml, drawing time 2s, drawing interval 28s, number of puffs 10, and a bell-shaped drawing curve. A Whatman 44mm Cambridge filter (F319-04) was used to capture the aerosol. Before and after drawing, the raspberry ketone content in the aerosol captured by the Cambridge filter was quantitatively tested using a gas chromatography-mass spectrometry (GC-MS) system (8890GC 5977B MS, Agilent). The content of flavor components in the aerosol captured after a certain number of puffs was measured, and the release rate of the flavor components was calculated using the following formula:

[0148] Release rate of fragrance components (%) = (Total amount of fragrance components in the captured aerosol / Total amount of fragrance components in the carrier) * 100%.

[0149] By measuring the release rate of fragrance components in the aerosols captured after each puff during the simulated aspiration process, the sustained-release curve of the fragrance components during the aspiration process is obtained.

[0150] Table 2: Test results of fragrance component retention rate of matrix segments in Examples 1-8 and Comparative Example 1

[0151]

[0152] As can be seen from the results in Table 2, compared with Comparative Example 1, the compositions of Examples 1-8, by incorporating the fragrance carrier composition of this application, improved the retention rate of fragrance components during the molding process. The fragrance carrier compositions of Examples 4-5 also included an emulsifier, which further improved the retention rate of fragrance components.

[0153] The sustained-release curves of the aerosol-generated products prepared in Examples 3, 6, 7 and Comparative Example 1, measured according to the above method, are as follows: Figure 8 As shown. From Figure 8 It can be seen that the matrix segment of the aerosol-generated products in Examples 3, 6, and 7 contains the fragrance-carrying composition of this application. During the inhalation process, the fragrance components are released slowly and evenly. In contrast, no fragrance-carrying composition was added in Comparative Example 1. During the inhalation process, the fragrance components were released in large quantities in the early stage of inhalation, while the release rate of the fragrance components slowed down significantly in the later stage of inhalation.

[0154] Examples 9-12

[0155] According to the formulation shown in Table 3 below, weigh each raw material in the composition and mix them evenly to obtain the composition used to prepare the functional segments. The obtained composition is then extruded into functional segments using an extrusion device.

[0156] Comparative Example 2

[0157] According to the formulation shown in Table 3 below, weigh each raw material in the composition and mix them evenly to obtain the composition used to prepare the functional segments. The obtained composition is then extruded into functional segments using an extrusion device.

[0158] Table 3: Composition formulations for preparing functional segments

[0159] Table 4: Test results of flavor component retention rates of functional segments in Examples 9-12 and Comparative Example 2

[0160]

[0161] As can be seen from the above results, compared with Comparative Example 2, the compositions of Examples 9-12, which include the fragrance-carrying composition of this application, have improved the retention rate of fragrance components.

[0162] The sustained-release curves of the aerosol-generating products prepared in Examples 9, 11, 12 and Comparative Example 2, measured according to the above method, are as follows: Figure 9 As shown. From Figure 9 It can be seen that the functional segments of the aerosol-generating articles in Examples 9, 11, and 12 contain the fragrance-carrying composition of this application. During the inhalation process, the fragrance components are released slowly and evenly. In contrast, no fragrance-carrying composition was added in Comparative Example 2. During the inhalation process, the fragrance components were released in large quantities in the early stage of inhalation, while the release rate of the fragrance components slowed down significantly in the later stage of inhalation.

[0163] The above description is only a preferred embodiment of this application and does not limit the patent scope of this application. All equivalent structural transformations made based on the inventive concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A fragrance-carrying composition, characterized in that, The fragrance-carrying composition is suitable for aerosol-generating articles, and the fragrance-carrying composition includes an amphiphilic substance.

2. The fragrance-carrying composition according to claim 1, characterized in that, The amphiphilic substance is selected from one or more of polylactic acid, ethyl cellulose, polyvinyl alcohol, octenyl succinate starch ester, and gelatin.

3. The fragrance-carrying composition according to claim 2, characterized in that, The fragrance-carrying composition further includes a crosslinking agent selected from one or more of genipin, citric acid, citrate, and sodium phytate; Preferably, in the fragrance-carrying composition, the mass ratio of the amphiphilic substance to the crosslinking agent is 1:0.01 to 1:

5.

4. The fragrance-carrying composition according to any one of claims 1 to 3, characterized in that, The fragrance-carrying composition further includes an emulsifier selected from one or more of caprylic / capric glyceride, stearic acid glyceride, triacetic acid glyceride, and diacetic acid glyceride; Preferably, the mass ratio of the amphiphilic substance to the emulsifier is 1:0.01 to 1:

5.

5. A composition for preparing a matrix segment, characterized in that, The composition comprises: The fragrance-carrying composition according to any one of claims 1 to 4; Skeletal components; Flavoring components; Adhesive components; and Smoke-generating agent components.

6. A composition for preparing functional segments, characterized in that, The composition comprises: The fragrance-carrying composition according to any one of claims 1 to 4; Skeletal components; Flavoring components; and Adhesive components.

7. The composition according to claim 5 or 6, characterized in that, The content of the fragrance-carrying composition is 1%-30% based on the total weight of the composition.

8. The composition according to claim 5, characterized in that, The skeleton components are selected from one or more of biomass raw materials and plant components; Preferably, the biomass raw material is selected from one or more of cellulose, hemicellulose, and lignin; the plant component is selected from one or more of tobacco raw materials, tobacco leaf fragments, tobacco stems, tobacco dust, and aromatic plants. More preferably, the content of the skeleton component is 50%-80% based on the total weight of the composition.

9. The composition according to claim 6, characterized in that, The skeleton component is selected from one or more of cellulose acetate, dimethyl terephthalate, polylactic acid, polyvinyl alcohol, activated carbon, and polyetheretherketone; preferably, the content of the skeleton component is 50%-80% based on the total weight of the composition.

10. The composition according to claim 5 or 6, characterized in that, The fragrance components are selected from one or more of the following: tobacco extract, aromatic plant extract, extract, essential oil, absolute oil, megastigmatrienone, neophytadiene, geraniol, nerol, menthol, and raspberry ketone. Preferably, the content of the flavoring component is 0.1%-5% based on the total weight of the composition.

11. The composition according to claim 5 or 6, characterized in that, The adhesive module is selected from one or more of tamarind polysaccharide, guar gum, glucomannan, gluconolan, xanthan gum, and modified cellulose, wherein the modified cellulose is selected from one or more of sodium carboxymethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, and hydroxypropyl cellulose. Preferably, the content of the adhesive module is 1%-10% based on the total mass of the composition.

12. The composition according to claim 5, characterized in that, The smoke-generating agent component is selected from one or more of the following: monohydric alcohol; dihydric alcohol; polyhydric alcohol; monocarboxylic acid, dicarboxylic acid, or esters formed by polycarboxylic acid and fatty alcohol; Preferably, the content of the smoke-generating agent module is 5%-30% based on the total mass of the composition.

13. An aerosol-generating product, characterized in that, It includes a matrix segment and a functional segment, wherein the matrix segment is prepared using the composition of any one of claims 5, 7-8, and 10-12; and / or The functional segment is prepared using the composition of any one of claims 6-7 and 9-11.

14. The aerosol-generating article according to claim 13, characterized in that, The matrix segment and / or functional segment include micropores; Preferably, the matrix segment and / or functional segment further includes at least one airway opening, the airway opening penetrating at least one end of the matrix segment and / or functional segment along its length.

15. Use of a fragrance-carrying composition according to any one of claims 1-4 in an aerosol-generating article to improve the retention rate of fragrance components.

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