CN118591303A - Flavored sheets, filters, wrappers including cooling blocks, and aerosol-generating articles including the same - Google Patents

Abstract

The present invention aims to provide a flavored sheet, a filter for an aerosol-generating article, a wrapper, and an aerosol-generating article comprising a cooling block comprising a cooling agent a, a cooling agent B, and a cooling agent C in a specific combination.

Description

Flavored sheet comprising cooling block, filter, wrapper and aerosol-generating article comprising same

Technical Field

The present invention relates to a flavored sheet comprising a Cooling block, a filter, a wrapper and an aerosol generating article comprising the same.

Background

At present, some cooling agents have been used alone in shaving foam, toothpaste, mouthwash, food, etc., but cooling blocks containing cooling agents subjected to a perfuming design have not been applied to aerosol-generating articles, etc., instead of menthol.

Most of the current aerosol-generating articles employ menthol compared to other perfuming substances, only having the key properties of menthol or the variability and diversity compared to existing menthol are competitive. In order to achieve menthol-like properties to keep the product competitive and continue to offer consumer convenience, the development of menthol alternatives and product application technologies is a major challenge.

On the other hand, the organoleptic properties of menthol can be divided into main and auxiliary characteristics, the main characteristics being Cooling (cool feel, mellow), fresh (not dried and Fresh), minty (peppermint fragrance); the auxiliary characteristics are Herbal (herbaceous fragrance), green (Green grass fragrance), earthy (soil fragrance) and the like.

It is difficult to achieve the above complex organoleptic properties of menthol using certain specific cooling agents alone, and menthol-like properties can only be reproduced by mixing different cooling agent characteristics, so that the relevant formulation must be developed.

Disclosure of Invention

Problems to be solved by the invention

In this context, in order to overcome the state of the art and/or limitations described above, the present invention aims to provide a perfumed sheet, filter, wrapper and aerosol-generating article comprising the same, utilizing a cooling block comprising a specific cooling agent combination.

However, the problems to be solved by the present invention are not limited to the above, and other problems not mentioned will be clearly understood by those skilled in the art from the following description.

Means for solving the problems

According to an embodiment of the present invention, there is provided a flavored sheet including a cellulose-based polymer and a cooling block; the cooling block comprises: a cooling agent a which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate (MENTHYL LACTATE), a cooling agent B which is one or more selected from the group consisting of isopulegol (isopulegol), 4-terpineol, menthone (menthone) and menthyl acetate (MENTHYL ACETATE), and a cooling agent C which is one or more selected from the group consisting of cis-3-hexenol (cis-3-hexenol), hexanol (hexyl alcohol), 1, 4-eucalyptol (1, 4-cineol) and eucalyptol (eucalyptol).

According to an embodiment of the present invention, there is provided a filter for an aerosol-generating article comprising a cooling block, the cooling block comprising: a cooling agent A which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate; a cooling agent B which is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone, and menthyl acetate; and a cooling agent C which is at least one selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

According to another embodiment of the present invention, there is provided a method of preparing a filter for an aerosol-generating article comprising a cooling block, comprising: step S1, preparing a cooling block, wherein the cooling block comprises cooling agent A, cooling agent B and cooling agent C, the cooling agent A is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, the cooling agent B is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and the cooling agent C is one or more selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol; step S2, mixing at least one of a binder, a plasticizer and an emulsifier with the cooling block to prepare a mixed solution; and step S3, spraying the mixed solution on the tows comprising the fiber tows.

According to an embodiment of the present invention, there is provided a wrapper for an aerosol-generating article comprising a cooling block, the cooling block comprising: a cooling agent A which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate; a cooling agent B which is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone, and menthyl acetate; and a cooling agent C which is at least one selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

According to an aspect of the present invention there is provided an aerosol-generating article comprising the perfuming sheet, filter, and/or wrapper.

Effects of the invention

According to the cooling block containing the specific combination of cooling agents, main sensory characteristics such as Cooling, fresh, minty of a menthol product can be realized, the acceptance degree and satisfaction degree of taste are improved, menthol can be supplemented instead of the menthol-applied product, and the menthol feel is better realized.

It is to be understood that the effects of the present invention are not limited to the above-described effects, but include all effects derivable from the specific description of the present invention or the invention described in the claims of the invention.

Drawings

Fig. 1 is a schematic structural view of a combustion-type aerosol-generating article comprising a flavored sheet, filter and/or wrapper comprising a cooling block according to an embodiment of the invention.

Fig. 2 is a schematic structural view of a non-combustion (heated) aerosol-generating article comprising a flavored sheet, filter and/or wrapper comprising a cooling block according to an embodiment of the invention.

Fig. 3 is a diagram showing a flavored sheet (a) containing a cooling block for an aerosol-generating article before drying and a flavored sheet (b) containing a cooling block for an aerosol-generating article after drying.

Fig. 4 is a cross-sectional view of a tobacco media portion of an aerosol-generating article.

Detailed Description

Hereinafter, embodiments will be described in detail with reference to the accompanying drawings. It should be understood that various changes may be made to the embodiments and that the scope of the application is not limited by the following examples. All changes made to the embodiments, and equivalents and alternatives thereof, are intended to be within the scope of the application.

The terminology used in the embodiments is for the purpose of describing particular embodiments only and is not intended to be limiting of scope. Where not specifically stated in the context, singular expressions include plural meanings. In this specification, the terms "comprises" and "comprising" and the like are used to specify the presence of stated features, integers, steps, operations, elements, components, or groups thereof, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or groups thereof.

All terms used herein, including technical or scientific terms, have the same meaning as commonly understood by one of ordinary skill in the art without other definitions. Terms commonly used as dictionary defined should be understood as meaning in the related art, and should not be interpreted as idealized or excessively formalized meaning without being explicitly defined in the specification.

In the description with reference to the drawings, the same reference numerals are used for the same components irrespective of the reference numerals, and overlapping descriptions are omitted. In describing the embodiments, when it is judged that detailed description of the related art will unnecessarily obscure the embodiments, detailed description thereof will be omitted.

In describing the constituent elements of the embodiment, the terms of first, second, A, B, (a), (b), and the like may be used. These terms are only used to distinguish one component from another and are not used to limit the nature or order of the corresponding components, etc.

When one component has a common function with a component of one embodiment, the same name is used for description in other embodiments. In the case where no mention is made of the contrary, the description of one embodiment can be applied to other embodiments, and a detailed description of the repeated contents may be omitted.

Throughout the specification, an "aerosol-generating article" may refer to an article capable of generating an aerosol, and may include combustion type aerosol-generating articles such as cigarettes (cigarettes), cigars, and the like, and may also include non-combustion heating type aerosol-generating articles. The aerosol-generating article may comprise an aerosol-generating substance or an aerosol-forming substrate. In addition, aerosol-generating articles may include solid substances (tobacco media) based on tobacco raw materials such as lamina tobacco, cut tobacco, reconstituted tobacco, and the like. The aerosol-generating substance may comprise a volatile compound.

Further, throughout the specification, "upstream" or "upstream direction" refers to a direction away from the user's mouth of the smoking aerosol-generating article, and "downstream" or "downstream direction" refers to a direction closer to the user's mouth of the smoking aerosol-generating article. For example, in the combustion-type aerosol-generating article 100 shown in fig. 1, the tobacco media portion 120 is located upstream or in an upstream direction of the filter portion 110.

In addition, in the present specification, the aerosol-generating article 100 is exemplified by one selected from a non-combustion type (heated) cigarette used with an aerosol-generating device (not shown) such as a combustion type cigarette or an electronic cigarette, but the present invention is not limited thereto and may include all of the above concepts.

In addition, in this specification, a cooling block may refer to a flavor or coolant composition composed of a combination of specific cooling agents developed herein in order to provide a cooling sensation, freshness sensation, peppermint scent, etc., resembling menthol characteristics.

In the present specification, "wrapping paper" refers to a material such as paper wrapping an aerosol-generating article, and is a concept including a cigarette paper wrapping a tobacco medium portion, a roll paper wrapping a filter, a tipping paper wrapping both the tobacco medium portion and the filter, and the like.

According to an embodiment of the present invention, there is provided a flavored sheet including a cellulose-based polymer and a cooling block including: a cooling agent A which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate; a cooling agent B which is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone, and menthyl acetate; and a cooling agent C which is at least one selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

Further, according to another embodiment of the present invention, there is provided a filter for an aerosol-generating article including a cooling block, the cooling block including: a cooling agent A which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate; a cooling agent B which is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone, and menthyl acetate; and a cooling agent C which is at least one selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

In addition, according to an embodiment of the present invention, there is provided a wrapper for an aerosol-generating article including a cooling block, the cooling block including: a cooling agent A which is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate; a cooling agent B which is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone, and menthyl acetate; and a cooling agent C which is at least one selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

The cooling agent A contained in the cooling block is a relatively low-volatility post-conditioning (Base) cooling agent capable of imparting mellow and durable flavor, and specific types of the cooling agent A include WS-3 (N-methyl-5-methyl-2- (1-methylethyl) cyclohexanecarboxamide, N-ethyl-5-methyl-2- (1-methylethyl) cyclohexane carboxamide), WS-5 (N- (ethoxycarbonylmethyl) -p-menthane-3-carboxamide, N- (ethoxycarbonylmethyl) -p-menthane-3-carboxamide), WS-23 (N, 2,3-trimethyl-2-isopropyl butanamide, N,2,3-trimethyl-2-isopropyl butanamide), menthyl lactate (MENTHYL LACTATE) and the like, and combinations thereof may be included as required.

WS-3 has a long-lasting cooling sensation, and WS-5 has a cooling sensation similar to that of WS-3 but may release salty or other off-flavors. In addition, menthyl lactate may provide a level of cooling sensation and remain persistent, and WS-23 may also provide cooling sensation, but may be lower in level than menthyl lactate. The menthyl lactate may provide a more fresh or milder sensation than WS-23.

In addition, the menthyl lactate can neutralize the spicy taste of WS-3 when used together with WS-3, and in combination, in order to provide a cool feel, a long-lasting feel, a fresh feel, a mild feel, etc., it is preferable to use a mixture of WS-3 and menthyl lactate.

In addition, the content of the low-volatility aftertaste-modifying cooling agent a included in the cooling block according to an embodiment of the present invention may be 10 to 60 wt%, preferably 15 to 55 wt%, and more preferably 20 to 50 wt%.

When the content of the cooling agent a exceeds the upper limit, the balance of the overall flavor (balance of cooling sensation, peppermint flavor, fresh sensation, herbal flavor, etc.) is destroyed, resulting in excessively strong flavor and inhibiting the flavor of the middle-adjustment (middle) cooling agent B and the front-adjustment (top) cooling agent C, which brings about negative effects; when the amount of the cooling agent A is less than the lower limit, the cooling feeling is reduced, and the overall balance is broken.

In addition, WS-3 may be included in the cooling agent A in an amount of 5 to 20% by weight, preferably 10 to 15% by weight, relative to the total weight of the cooling block. In addition, the content of menthyl lactate may be 5 to 40 wt%, more preferably 30 to 40 wt%.

When the contents of WS-3 and menthyl lactate are within the above preferred ranges, as described above, the cooling sensation, the durability, the freshness sensation and the mildness sensation are good as a whole, and differences in effects based on the different ranges will be described in detail by examples and comparative examples which will be described later.

The cooling agent B contained in the cooling block is a moderate-volatility cooling agent with moderate volatility and an effect of enhancing the fragrance characteristic, and the specific types of the cooling agent B can be isopulegol, 4-terpineol, menthone, menthyl acetate and the like, and can also comprise a combination of the isopulegol, 4-terpineol, menthone, menthyl acetate and the like according to requirements.

Among the classes of cooling agents B, menthone can impart peppermint fragrance, and menthyl acetate is responsible for overall coordination of aftertaste, center taste and front taste, so as to prevent the characteristics of the aftertaste cooling agent a and the front taste cooling agent C described later from being excessively prominent. In addition, isopulegol imparts a fragrance to soil, and 4-terpineol enhances a feeling of roughness. However, isopulegol is an expensive ingredient, and the rough feel of 4-terpineol can negatively impact the smoker, so it is preferable to use a combination of menthone and menthyl acetate in view of the object of the present invention to achieve properties most similar to menthol.

Further, the content of the moderate-volatility intermediate-profile cooling agent B included in the cooling block according to an embodiment of the present invention may be 5 to 50 wt%, preferably 10 to 45 wt%, and more preferably 15 to 40 wt%.

When the content of the cooling agent B exceeds the upper limit, the connection between the rear-adjusting cooling agent A and the front-adjusting cooling agent C is influenced, the overall flavor balance is influenced, and the unique flavor of the front-adjusting cooling agent C is limited; when the content is less than the lower limit, the mint flavor is reduced due to insufficient content of the cooling agent B, and the overall balance is affected.

In addition, the menthone may be included in the cooling agent B in an amount of 10 to 30 wt%, preferably 15 to 25 wt%, with respect to the total weight of the cooling block. In addition, the content of menthyl acetate may be 5 to 20 wt%, more preferably 2 to 8 wt%.

When the content of menthone and menthyl acetate is within the above preferred ranges, the flavor intensity and overall balance are better, which can be confirmed by comparison of examples 1 to 2 and comparative example 2 below, further, menthol-like mint flavor is also provided, and the characteristics of the cooling agent as a front, middle and rear flavor are fused to form an overall balance.

The cooling agent C contained in the cooling block is a pre-conditioning cooling agent with high volatility, fragrance intensity, uniqueness and dispersibility, and the specific types of the cooling agent C include cis-3-hexenol, hexanol, 1, 4-eucalyptol, eucalyptol and the like, and can also comprise a combination of the cis-3-hexenol, hexanol, 1, 4-eucalyptol and the like according to requirements.

Among the categories of cooling agent C, cis-3-hexenol can provide a grass-like green grass scent, and hexanol can impart a greasy (oly) feel in addition to the green grass scent. In addition, eucalyptol has the effect of enhancing peppermint feel and cool feel, gives natural, herbal and fresh aroma, and 1, 4-eucalyptol has the aroma characteristics of herbal, green grass, fresh and light (light), but has the disadvantage of poor overall coordination as eucalyptol. Therefore, from these points of view, the cooling agent C is preferably eucalyptol.

Further, the content of the pre-conditioning cooling agent C having high volatility, which is included in the cooling block according to an embodiment of the present invention, may be more than 0 wt% and 40 wt% or less, preferably 0.5 wt% to 10 wt%, or 0.5 wt% to 5 wt%.

If the content of the cooling agent C exceeds the upper limit, natural flavor characteristics may not be achieved, resulting in a sense of human being and too strong flavor, and the balance with the medium-taste cooling agent B may be broken. On the other hand, if the cooling agent C is not contained, the uniqueness of the flavor may not be transmitted, and the freshness and pleasure feeling may be lacking in the whole because the degree of completion of the flavor is lowered.

The above results can also be confirmed by sensory evaluation comparison between examples 1 and 2 described later and comparative example 3 containing no eucalyptol, and it is found that the content of cooling agent C in the cooling block is small, but it has a great influence on the cool feel of menthol, enhancing the fragrance intensity and refreshing aftertaste.

In addition, the cooling block included in the flavored sheet, the filter for aerosol-generating articles, or the wrapping paper according to an embodiment of the present invention may include a solvent for mixing the above-described agents in addition to the cooling agent a, the cooling agent B, and the cooling agent C described in detail above. In this case, the solvent used may include at least one selected from the group consisting of alcohol, propylene glycol (Propylene glycol), and glycerin (Glycerol), and is preferably alcohol.

At this time, the content of the solvent contained in the cooling block may be about 50 wt% or less, preferably about 15wt% to 30 wt% of the total weight of the cooling block.

Thus, the balance of cooling agent a, cooling agent B, cooling agent C can be maintained by adjusting the amount of solvent contained in the cooling block, thereby maintaining the effect as a menthol substitute, and adjusting only the flavor intensity.

In addition, for example, the preparation method of the cooling block comprises the following steps: step S1, preparing a cooling agent A, a cooling agent B and a cooling agent C as raw materials, and step S2, mixing the cooling agent A, the cooling agent B and the cooling agent C with a solvent; in this case, the cooling agent A may be one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, the cooling agent B may be one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and the cooling agent C may be one or more selected from the group consisting of cis-3-hexenol, hexanol, 1, 4-eucalyptol and eucalyptol.

In addition, the solvent used in the step S2 is substantially the same as the above-described type of solvent, and is preferably alcohol.

To prepare a flavored sheet according to an embodiment of the present invention, a slurry (or stock) containing distilled water, alcohol, cellulose-based polymer, and the cooling block may be prepared, which may further include a bulking agent (bulking agent) and/or an emulsifier, etc.

The distilled water may be a factor determining the viscosity of the slurry, and alcohol may be used as a solvent, such as ethanol, etc.

The cellulose-based polymer includes at least one selected from the group consisting of Methyl Cellulose (MC), ethyl Cellulose (EC), carboxymethyl cellulose (carboxymethyl cellulose, CMC), carboxyethyl cellulose (carboxyethyl cellulose, CEC), hydroxymethyl cellulose (hydroxymethyl cellulose, HMC), hydroxyethyl cellulose (hydroxyethyl cellulose, HEC), hydroxypropyl cellulose (hydroxypropyl cellulose, HPC), hydroxypropyl methylcellulose (hydroxypropyl methyl cellulose, HPMC), and hydroxyethyl methylcellulose (hydroxyethyl methyl cellulose, HEMC). Such cellulose-based polymers are readily soluble in alcoholic solvents such as ethanol at room temperature.

The bulking agent serves to increase the total mass (i.e., dry mass) of components other than water in the raw stock slurry, thereby increasing the volume of the prepared flavored sheet. The volume enhancer only plays a role in increasing the volume of the flavored chips, does not substantially increase the viscosity of the raw stock slurry, and does not adversely affect the function of the cooling block of the flavored chips.

The species of the bulking agent is preferably starches or starch hydrolysates. Starch hydrolysate refers to a substance produced by a preparation method comprising a step of hydrolyzing starch. For example, starch hydrolysates are those obtained by directly hydrolyzing starch (i.e., dextrins), or those obtained by heat treating starch and then hydrolyzing it (i.e., indigestible dextrins). For example, the bulking agent may be dextrin (dextrin), more specifically cyclodextrin (cyclodextrin).

Specific types of the emulsifier may include lecithin.

The above-mentioned material-containing slurry is used, and its spread and thinned into sheet form, then passed through the processes of drying, etc., so that the invented perfuming sheet with a certain thickness can be made.

Referring to fig. 3, it can be seen that the thickness of the flavored sheet before the final drying process is d1, and after the final drying process, it becomes thinner, with a thickness of d2. This is a difference in thickness due to a difference in moisture content before and after drying, and the thickness of the flavored sheet after drying may be about 5 μm to 300 μm.

In addition, the drying process may be performed at a temperature of about 40 ℃ to 70 ℃.

In addition, a filter for an aerosol-generating article according to an embodiment of the present invention may include a tow including a fiber bundle and a binder.

The fibers may include at least one selected from the group consisting of cellulose acetate (cellulose acetate, CA), lyocell, polypropylene (polypropylene, PP), and polylactic acid (PLA); the binder may include at least one selected from the group consisting of hydroxypropyl methylcellulose, hydroxypropyl cellulose, polyvinyl alcohol (polyvinyl alcohol, PVA), ethylene-vinyl acetate copolymer (ETHYLENE VINYL ACETATE, EVA), and polyvinyl acetate (polyvinyl acetate, PVAc).

The fibers correspond to a frame (support) forming the filter unit, and the binder is used to connect a plurality of fiber bundles forming the frame and a tow formed of the fiber bundles.

In addition, the filter according to an embodiment of the present invention includes a plasticizer for improving the hardness of the filter, an emulsifier for improving the delamination phenomenon in the mixed solution during the preparation of the filter, and the like, in addition to the tow of the fiber bundles and the binder.

The plasticizer to increase hardness may use at least one of triethyl citrate (TRIETHYL CITRATE, TEC) and triacetin (TRIACETINE, TA); the emulsifier may include at least one of a fatty acid carboxyl compound, a sorbitol ester compound, a sorbate ester compound, and an ethoxy compound.

On the other hand, the cooling block produced by the above production method may be directly sprayed on a wrapping paper for aerosol-generating articles to be subjected to a perfuming treatment (for example, a transfer spray nozzle system (Transfer Jet Nozzle System, TJNS)), at which time the wrapping paper is a sheet-like wrapping paper made of pulp or the like, and specifically, may be a porous sheet-like wrapping paper having a thickness of about 5 μm to 150 μm, preferably 10 μm to 100 μm, more preferably 10 μm to 50 μm, but is not limited thereto, and may be employed in various thicknesses depending on the function of the location of the wrapping paper.

For example, when the wrapping paper is used as a cigarette paper wrapping a tobacco medium portion (cut tobacco portion), in order to prevent leakage of the content of the wrapped portion of the cigarette paper and to maintain the shape of an aerosol-generating article (smoking article) and to achieve efficient combustion, the thickness thereof may be thinner than that when used as a filter wrapping paper (filter wrapping paper).

In addition, the wrapper including the cooling block according to an embodiment of the present invention may include at least one additive of a filler (mineral filler (MINERAL FILLER)) and a combustion improver, and may further include a coating material using a low-flammability material such as a low-flammability metal material, in addition to pulp and the cooling block.

The filler can improve whiteness or opacity, control porosity, improve touch and printability, and also has a function of reducing odor of paper. Examples of the filler having this function include calcium carbonate (CaCO ₃), magnesium oxide (MgO), magnesium carbonate (MgCO ₃), and the like.

In addition, the combustion improver functions to promote combustion or suppress combustion, and for example, ammonium phosphate, sodium citrate, potassium citrate, and the like may be used.

When the filler and the combustion improver are contained, the cigarette taste, combustibility, fire extinguishability and cigarette processability of the cigarette can be ensured.

A flavored sheet including a cooling block, a filter, and a wrapper according to an embodiment of the invention may be used in an aerosol-generating article, which may be a smoking article including a tobacco media portion, a filter portion, a wrapper, and the like.

In the conventional flavoring method (for example, TJNS), the flavor liquid is directly sprayed onto the tobacco medium part, the filter part, the wrapping paper and the like, and when a large amount of flavor liquid is added, spots are generated on the spraying object such as the wrapping paper due to the increase of the solvent.

As shown in fig. 4, a flavored sheet including a cooling block is located in a tobacco medium portion of an aerosol-generating article, and the flavored sheet is mixed with a tobacco medium (cut tobacco) or the like. In this way, the flavored sheet and the tobacco media are included in the tobacco media portion together, so that the defect that the flavor of the rear section is gradually weakened when the flavor is sucked in the existing smoking article is avoided, and the cool block can be continuously released in the whole smoking process.

In addition, the tobacco medium portion generally contains a tobacco material containing nicotine such as tobacco leaf, and may further contain an excipient such as a binder or other additives, for example, the tobacco medium contained in the tobacco medium portion of the present invention may be prepared in a particulate form including a tobacco substance, an excipient, and the like.

In the present invention, the tobacco material is a material constituting an aerosol-forming substrate, and may be tobacco leaf fragments, tobacco stems, dust generated during tobacco processing, and/or side strips of tobacco leaves. The tobacco leaf may be at least one selected from yellow-colored tobacco leaves, burley tobacco leaves, oriental tobacco leaves, cigar tobacco leaves, and cured tobacco leaves, but is not limited thereto.

In addition, when the perfuming sheet is located in the filtering portion, the filtering portion included in the aerosol-generating article is at least two stages, such as the first filtering portion, the second filtering portion, etc., irrespective of the position where the perfuming sheet is disposed, and in the case where one or more of the above at least two stages includes the perfuming sheet according to an embodiment of the present invention, it can be regarded as being included in the scope of the present invention. Thus, the perfuming sheet may be located in various filter parts, for example inside a paper tube filter.

Furthermore, when one of the above at least two sections corresponds to a filter including a cooling block according to an embodiment of the present invention, it is considered to be included in the scope of the present invention wherever it is placed.

In other words, even if a filter including a cooling block is used together with a filter not including a cooling block, it is included in the scope of the present invention.

The wrapping paper for aerosol-generating articles may be used to wrap the tobacco medium portion and/or the filter portion of the smoking article, and any wrapping paper including the cooling block according to an embodiment of the present invention may be used as long as it wraps at least one of the tobacco medium portion and the filter portion.

In other words, even if a wrapper including a cooling block and a wrapper not including a cooling block are used simultaneously, it is included in the scope of the present invention.

Further, when a flavored sheet is added to the tobacco medium portion, the filter, or the like, or a cooling block is added to the filter, the amount of cooling block added to the flavored sheet or the filter is 50g to 250g, preferably 100g to 105g, per 100kg of tobacco medium (cut tobacco). When the content of the cooling block exceeds or falls short of the range, the cooling block effect expected in the present invention may be reduced.

Further, as shown in fig. 1 (combustion type aerosol-generating article), the wrapper according to an embodiment of the present invention may include a wrapper that wraps each component of the aerosol-generating article separately, and may be divided into a tobacco medium portion wrapper 120a that wraps a tobacco medium portion, a filter portion wrapper (filter roll paper) 110a that wraps a filter, and the like. In addition, as described above, when the filtering portion is a plurality of segments, a wrapping paper wrapping each segment may be included. In addition, in order to fixedly connect the tobacco medium portion and the filter portion, a tipping paper 130 wrapping a partial region of the tobacco medium portion and the filter portion may be included, and in order to maintain the overall shape of the aerosol-generating article or the like, an external wrapping paper wrapping all of the tobacco medium portion and the filter portion or the like may be included at the outermost side of the aerosol-generating article.

Alternatively, the tipping paper for combining the tobacco media portion and the filter may have at least one perforation formed in the circumferential direction to allow external air inflow or internal air outflow, thereby achieving an air dilution ratio of the cigarette, controlling the transfer amount of mainstream smoke components.

Further, a cooling block according to an embodiment of the present invention may be included in a non-combustion heated aerosol-generating article as illustrated in fig. 2, and in a particular location substantially similar to that described in fig. 1, with a tobacco media portion, a filter portion, a wrapper, and the like.

According to another aspect of the present invention there is provided a method of preparing a filter for an aerosol-generating article comprising a cooling block, comprising: step S1, preparing cooling blocks; step S2, mixing at least one of a binder, a plasticizer and an emulsifier with the cooling block to prepare a mixed solution; and step S3, spraying the mixed solution on the tows comprising the fiber tows.

According to another aspect of the present invention there is provided a method of preparing a filter for an aerosol-generating article comprising a cooling block, comprising: step S1, preparing cooling blocks; step S2, mixing at least one of a binder, a plasticizer and an emulsifier with the cooling block to prepare a mixed solution; and step S3, spraying the mixed solution on the tows comprising the fiber tows.

Step S1 of preparing the cooling block may be substantially the same as the preparation method of the cooling block described in detail above, and the cooling block prepared by the method is also the same as described above.

As described above, the prepared cooling block is mixed with at least one of a binder, a plasticizer, and an emulsifier, and then sprayed onto tows including fiber bundles, thereby being included in a filter; or after preparing the filter through steps S2 and S3 in addition to the cooling block, the prepared cooling block is separately spray-coated to be included in the filter.

The spraying method is not particularly limited, but spraying may be performed by a method of spraying directly on the tow or the filter itself (for example, TJNS) or by brush spraying or electrospraying.

Thus, a filter for an aerosol-generating article comprising a cooling block according to an embodiment of the present invention may be prepared.

The structure and effects of the present invention will be described in more detail with reference to examples and comparative examples. However, these examples are only for illustrating the present invention in more detail, and the scope of the present invention is not limited thereto.

Examples-examples

(1) Preparation example: preparing cool block

Example 1

To prepare a cooling block according to an embodiment of the present invention, the flavor materials are powdered WS-3 and menthyl lactate, as well as liquid menthone, menthyl acetate and eucalyptol. The prepared WS-3, menthyl lactate, menthone, menthyl acetate, and eucalyptol raw materials were mixed with alcohol as a solvent and stirred for a prescribed time to sufficiently dissolve the flavor raw materials in the alcohol.

At this time, the contents of the raw materials and alcohol added are shown in table 1 below.

Example 2

A cooling block was prepared in the same manner as in example 1, except that WS-3 content in the cooling agent was adjusted to 25 wt% and menthone content was adjusted to 10 wt%.

Comparative example 1

A cooling block was prepared in the same manner as in example 1, except that WS-23 was used instead of WS-3 to dissolve in alcohol. The amount of WS-23 added at this time was 15% by weight based on the total weight of the prepared cooling block.

Comparative example 2

A cooling block was prepared in the same manner as in example 1, except that 4-terpineol was used instead of menthone to dissolve in alcohol. The content of 4-terpineol added at this time was 20% by weight based on the total weight of the prepared cooling block.

Comparative example 3

A cooling block was prepared in the same manner as in example 1, except that 1, 4-cineole was dissolved in alcohol instead of eucalyptol. The content of 1, 4-cineole added at this time was 2% by weight based on the total weight of the prepared cooling block.

The types and contents of the cooling agents in the cooling blocks prepared in the examples 1 to 2 and the comparative examples 1 to 3 are summarized in the following table 1.

TABLE 1

(The numerical units in Table 1 are weight%)

(2) Preparation example 2: flavored tablet containing cool blocks

Before preparing the flavored chips, the cooling block of example 1 was prepared and mixed with distilled water, ethanol, methyl Cellulose (MC) and cyclodextrin to prepare a flavored chip slurry having the proper viscosity.

The prepared flavored sheet slurry is made into a sheet shape through a tiling operation, and then dried at a temperature of 60 ℃ to prepare the flavored sheet with the cool block of the invention, which has a sheet shape with a certain thickness.

(3) Test example 1: sensory evaluation of the prepared cooling block

After 16 persons in KT & G R & D constitute an evaluation group, the panelists consumed the aerosol-generating articles including the flavored sheets with cooling nuggets of examples 1 to 2 and comparative examples 1 to 3 prepared as described above in the tobacco media section, the flavor intensity, menthol cooling sensation, soft swallowing degree, flavor intensity, overall balance sensation, aftertaste cooling degree, satisfaction degree were evaluated, and the score was divided into 9. The evaluation results were averaged as shown in table 2 below.

TABLE 2

Referring to Table 2, the evaluation results of examples 1 and 2, which contained all of WS-3, menthyl lactate, menthone, menthyl acetate and eucalyptol, showed better results in terms of flavor intensity, menthol cooling sensation, flavor intensity, overall balance sensation, aftertaste freshness degree and overall satisfaction, as compared with comparative examples 1 to 3, which lacked WS-3, menthone and eucalyptol.

More specifically, for comparative example 1 without WS-3, the flavor intensity and aftertaste freshness exhibited poorly in all evaluation items, in particular; whereas comparative example 2 without menthone exhibited poor flavor intensity and overall balance. Comparative example 3 without eucalyptol scored lower than example in terms of menthol cooling sensation, flavor intensity, overall balance sensation, and aftertaste freshness.

It can be seen that overall satisfaction of the smoker with examples 1 and 2 is higher than with comparative examples 1 to 3.

On the other hand, when comparing examples 1 and 2 in which the WS-3 and menthone contents were different, example 2 in which an excessive amount of WS-3 or a small amount of menthone was added was slightly inferior in menthol cooling sensation, swallowing softness, flavor intensity, overall balance sensation, and aftertaste freshness, and overall satisfaction was lower than that of example 1.

(4) Test example 2: sensory evaluation compared to existing tobacco

The aerosol-generating article comprising the flavored sheet of preparation 2 was compared to the prior ESSE CHANGE mg

The flavored sheet containing the cooling block prepared in preparation example 2 was applied to an aerosol-generating article.

Subsequently, 13 persons in KT & G R & D company form an evaluation group, and after the panelist had absorbed the existing ESSE CHANGE mg (for the test product, a part of menthol was mixed in 2 flavors at the time of preparation of ESSE CHANGE mg) and the aerosol-generating product including the cooling block of example 1, the flavor intensity, menthol cooling sensation, soft swallowing degree, flavor intensity, overall balance sensation, aftertaste cooling degree, and satisfaction degree were evaluated, and the evaluation group was classified into 9 minutes. The evaluation results were averaged as shown in table 3 below.

TABLE 3

The aerosol-generating article comprising the flavored sheet of preparation 2 was compared to conventional ESSE CHANGE mg

16 Persons in KT & G R & D were combined into an evaluation group, and after the evaluation group member had sucked conventional ESSECHANGE mg (as a test product, menthol and cooling block were not mixed in 2 flavors) with an aerosol-generating product comprising the cooling block-containing flavored sheet of preparation example 2, the evaluation was performed in the same manner as described above. The evaluation results were averaged as shown in table 4 below.

TABLE 4

Comparing an aerosol generating article comprising the cooling block of preparation example 2 with existing Raison FrenchBlack

16 Persons in KT & G R & D were combined into an evaluation group, and the panelists absorbed the existing Raison French Black aerosol-generating article comprising the cooling block-containing flavored sheet of preparation example 2 and evaluated in the same manner as described above. The evaluation results were averaged as shown in table 5 below.

TABLE 5

From the results of test example 2, it is apparent that the aerosol-generating article comprising the flavored sheet containing a cooling block according to an embodiment of the present invention, which can supplement the taste acceptance and satisfaction of the existing menthol products, better embody the main sensory characteristics, exhibited a higher propensity for menthol cooling sensation, aftertaste freshness degree, and overall satisfaction than the existing aerosol-generating article of ESSE CHANGE mg, conventional ESSE CHANGE mg, raison French Black, and the like.

In summary, the embodiments are described with limited figures, and a person of ordinary skill in the art can make various modifications and variations based on the description. For example, the described techniques may be performed sequentially in a different order than the described methods, and/or the described components may be combined or combined in a different manner than the described methods, or substituted or replaced with other components or equivalents, as appropriate.

Accordingly, other implementations, other embodiments, and equivalents of the claims are intended to fall within the scope of the appended claims.

Description of the reference numerals

100: Aerosol-generating article

110: Filtration part

110A: filter roll paper

120: Tobacco media part

120A: tobacco medium part wrapping paper (inner wrapping paper)

130: Tipping paper

140: External packing paper

150: Front end plug-in

300. 400: Perfumed sheet for aerosol generating articles

500: Tobacco media part

510: Tobacco media (tobacco shred)

511: Flavored sheet comprising cooling block

512: Tobacco media portion wrapper.

Claims (15)

1. A flavoring tablet, wherein: including cellulose-based polymers and cooling blocks; The cooling block comprises: Cooling agent A, wherein the cooling agent A is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, a cooling agent B, wherein the cooling agent B is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and The cooling agent C is one or more selected from the group consisting of cis-3-hexenol, hexanol, 1,4-cineole and eucalyptol. 2. The flavoring sheet according to claim 1, wherein The cooling agent A includes WS-3 and menthyl lactate. 3. The flavoring sheet according to claim 2, wherein: The cooling agent B includes menthone and menthyl acetate. 4. The flavoring sheet according to claim 3, wherein The cooling agent C includes eucalyptus oil. 5. The flavoring sheet according to claim 1, wherein The content of the cooling agent A is 10 to 60 wt %, the content of the cooling agent B is 5 to 50 wt %, and the content of the cooling agent C is greater than 0 wt % and less than 40 wt % relative to the total weight of the cooling block. 6. The flavoring sheet according to claim 1, wherein In addition to the cooling agent A, the cooling agent B, and the cooling agent C, the cooling block further includes a solvent. 7. The flavoring sheet according to claim 6, wherein The solvent comprises at least one selected from the group consisting of alcohol, propylene glycol and glycerin, The content of the solvent is 50% by weight or less relative to the total weight of the cooling block. 8. The flavoring sheet according to claim 1, wherein Relative to the total weight of the cool taste block, the cool taste block comprises: 10 to 15 wt% of WS-3, 30 to 40% by weight of menthyl lactate, 15 to 25% by weight of menthone, 2 to 8% by weight of menthyl acetate, 0.5 to 5% by weight of eucalyptol, and 15% to 30% alcohol by weight. 9. The flavoring sheet according to claim 1, wherein The cellulose-based polymer includes at least one selected from the group consisting of methyl cellulose, ethyl cellulose, carboxymethyl cellulose, carboxyethyl cellulose, hydroxymethyl cellulose, hydroxyethyl cellulose, hydroxypropyl cellulose, hydroxypropyl methyl cellulose, and hydroxyethyl methyl cellulose. 10. The flavoring sheet according to claim 1, wherein The flavored tablet also includes a bulking agent. 11. The flavoring sheet according to claim 1, wherein The thickness of the flavoring sheet is 5 μm to 300 μm. 12. An aerosol-generating article, wherein: Comprising a flavored sheet according to any one of claims 1 to 11. 13. A filter for an aerosol generating product, comprising a cooling block; The cooling block comprises: Cooling agent A, wherein the cooling agent A is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, a cooling agent B, wherein the cooling agent B is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and The cooling agent C is one or more selected from the group consisting of cis-3-hexenol, hexanol, 1,4-cineole and eucalyptol. 14. A method for preparing a filter for an aerosol-generating product, wherein the filter for an aerosol-generating product comprises a cooling block; The method for preparing the filter for the aerosol generating product comprises: Step S1, preparing a cooling block, wherein the cooling block comprises cooling agent A, cooling agent B and cooling agent C, wherein the cooling agent A is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, the cooling agent B is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and the cooling agent C is one or more selected from the group consisting of cis-3-hexenol, hexanol, 1,4-cineole and eucalyptol, Step S2, mixing at least one of a binder, a plasticizer and an emulsifier with the cool taste block to prepare a mixed solution, and Step S3, spraying the mixed solution on the filament bundle including the fiber bundle. 15. A wrapping paper for an aerosol-generating product, comprising a cooling block; The cooling block comprises: Cooling agent A, wherein the cooling agent A is one or more selected from the group consisting of WS-3, WS-5, WS-23 and menthyl lactate, a cooling agent B, wherein the cooling agent B is one or more selected from the group consisting of isopulegol, 4-terpineol, menthone and menthyl acetate, and The cooling agent C is one or more selected from the group consisting of cis-3-hexenol, hexanol, 1,4-cineole and eucalyptol.