KR20200140940A - Tobacco smoke filter - Google Patents

Abstract

The present invention relates to a tobacco smoke filtering material comprising paper and a tobacco smoke filter or filter element comprising a flavor enhancing additive.

Description

Tobacco smoke filter {TOBACCO SMOKE FILTER}

The present invention relates to a cigarette smoke filter (for example, for cigarettes) and a method of manufacturing the same.

Worldwide, cellulose acetate is the leading material used in cigarette smoke filters. For example, it is also known to use paper as a filtration material in cigarette filters, which provides several advantages over cellulose acetate in terms of enhanced biodegradability, relatively high filtration efficiency at a given pressure drop, and low material cost. . Despite these advantages, the use of paper filters is small and generally limited to niche applications. The main reason paper filters have not attracted wide market attention is that they have the effect of damaging the taste of cigarettes. This so-called'paper taste' is often thought to give tobacco smoke a relatively unpleasant and drier sensation.

Therefore, it is very desirable to overcome this'paper taste' and create a smoking sensation from a paper-filter cigarette that is comparable to that of a conventional cellulose acetate filter cigarette. In addition, discarded paper butts decompose much faster than in the case of cellulose acetate, resulting in significant environmental improvement. However, all measures to overcome the paper taste should also result in a smoking experience comparable to that of the conventional cellulose acetate filter used cigarette. This has not been achieved with previous attempts to overcome the'paper taste' deficiencies (eg the addition of certain flavorings such as menthol).

Another limitation of paper filters is the retention of toxic phenolic compounds (e.g., phenols, cresols, catechols and resorcinols) found in the volatile and semivolatile phases of cigarette smoke compared to cellulose acetate filters. It is a fact that it is reduced, which leads to a phenomenon of further increasing the relative yield of phenolic compounds in the case of cigarettes using paper filters. This is caused by the well-known selectivity of cellulose acetate filters to phenolic compounds, rather than an inherent defect of paper filters. However, it is a matter of course that it is still necessary to increase the phenol retention of the paper filter so that smokers are not exposed to high concentrations of phenolic compounds when smoking a cigarette using a paper filter compared to a cigarette using a cellulose acetate filter.

Accordingly, it is desirable to provide a filter for cigarettes, which has the advantages (biodegradability, etc.) of a paper filter that does not have an unpleasant paper taste effect and/or has a phenolic preservation power at least similar to that of a cellulose acetate filter.

It is an object of the present invention to provide such a cigarette smoke filter and a method of manufacturing the same.

According to the invention, in a first aspect, there is provided a tobacco smoke filtering material comprising paper; And flavor enhancing additives (eg, from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 of Commission Regulation (EC) No. 1565/2000 (Annexe) 1 and EU Flavor Information System ("FLAVIS") database. Selected), a tobacco smoke filter or filter element is provided.

As used herein, the term "anti-flavor enhancing additive" reduces the unpleasant "paper taste" effect on the taste of a cigarette, and/or creates a smoker's perception of a more unpleasant and drier sensation compared to cigarettes using known cellulose acetate filters. It means a reducing additive. That is, the taste of the cigarette using the paper filter containing the flavor enhancing additive should be within the range of taste variability for each cigarette conventionally associated with the cigarette using a commercial brand cellulose acetate filter. Various attempts have been made to classify flavor substances according to their chemical properties and to distribute them into groups of structurally related compounds. To this end, the European Union has compiled a list of 34 chemical groups for flavoring substances, which are listed under Commission Regulation (EC) No. 1565/2000, Attachment 1 and in the EU Flavor Information System ("FLAVIS") database. The present invention uses flavor enhancing additives selected from Group 11 and/or Group 21 of this list.

Flavor enhancing additives include alicyclic lactones (eg, alicyclic lactones having up to 20 carbon atoms such as C ₃ -C ₂₀ alicyclic lactones); Aromatic lactones (eg, aromatic lactones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic lactones); It may be an aromatic ketone (eg, an aromatic ketone having up to 20 carbon atoms, such as a C ₆ -C ₂₀ aromatic ketone), or a secondary alcohol or an ester of a secondary alcohol. The flavor enhancing additive may be an alkylphthalide, for example, a lactone, which is a phthalide such as (C ₁ -C ₆ branched or straight chain alkyl)-phthalide. The Flavor and Extract Manufacturers Association (FEMA) has compiled a list of substances that have been generally identified as safe (GRAS) and numbered each of these substances (known as the FEMA GRAS number). The flavor enhancing additive preferably has a FEMA GRAS number (number assigned). The flavor enhancing additive may be a lactone having a FEMA GRAS number (group 11), for example χ-valerolactone (which is given a FEMA GRAS number FEMA 3103), χ-hexalactone (FEMA 2556), δ-hexalactone ( FEMA 3167), χ-heptalactone (FEMA 2539), χ-octalactone (FEMA 2796), δ-octalactone (FEMA 321), 4-hydroxy-3-pentanoic acid lactone (FEMA 3293), 5 -Hydroxy-2-decenoic acid δ-lactone (FEMA 3744), 4,4-dibutyl-χ-butyrolactone (FEMA 2372), mint lactone (FEMA 3764), dihydromentofurolactone (FEMA 3755) , 3-butylidenephthalide (FEMA 3333), 3-n-butylphthalide (FEMA 3334) and whiskey lactones (FEMA 3803). The flavor enhancing additive may be sedannolide. The flavor enhancing additive is a part of a mixture containing a flavor enhancing additive (e.g., a plant extract or vegetable oil or a decomposition such as seed oil or nut oil), such as an essential oil including a flavor enhancing additive. May be included as part of an unresolved mixture). The mixture containing a flavor enhancing additive (eg, a plant extract or vegetable oil or a non-decomposed mixture such as seed oil or nut oil) may include one or more flavor enhancing additives. For example, the flavor enhancement additive (or additives) may be included in the form of celery seed oil (eg, celery seed fragrance oil). Perfume oils of celery seeds include sedannolide and 3-butylphthalide. Celery seed oil is known as a fragrance for cigarettes, but the use of celery seed oil with paper filter cigarettes has not been proposed so far. Preferably, the mixture comprising a flavor enhancing additive (e.g., plant extract or vegetable oil or a non-degraded mixture such as seed oil or nut oil) is, for example, Masoa bark oil (FEMA 3747) and They have the same FEMA GRAS number.

Preferably, the flavor enhancing additive is present in the filter or filter element in an amount of up to 1% by weight of the paper weight of the filter or filter element.

The cigarette smoke filter or filter element according to the invention may have a circumference of 14 to 28 mm, for example 16 to 26 mm, for example 16 to 17 mm or 24 to 25 mm. The cigarette smoke filter of the present invention may have a length of 10 to 40 mm, for example 15 to 35 mm, or 20 to 30 mm. The tobacco smoke filter element of the present invention may have a length of 5 to 30 mm, for example 6 to 20 mm, or 8 to 15 mm, or 10 to 12 mm.

The paper may be any paper (or any type of paper) commonly used in filters or filter elements. The paper may be, for example, filter paper, perforated paper, or crepe paper. The paper may be in the form of a web of paper, for example, joined in the form of a rod in the lateral direction and held therein. The fibers of the paper web may be 100% natural fibers (e.g., wood pulp), 100% synthetic fibers, or a mixture of both (in the case of perforated paper, the paper is preferably 100% natural fibers). . When the paper web comprises synthetic fibers, a bonding agent (eg, plasticizer) may be included to increase the hardness of the finished filter or filter element (rod). The paper, for example, as disclosed in patent document GB2075328, may be in the form of a web of paper corrugated and/or fibrous in the longitudinal direction, which is laterally joined in a rod shape and held in the shape. . The filter or filter element may be (or may include) a rod (eg, cylindrical rod) of filtration material comprising (eg formed) paper (eg, a web of paper). The filter or filter element may comprise tobacco smoke filtering material including paper and one or more additional filtering materials. The filter or filter element is in the form of a coherent web comprising (e.g., formed from a material comprising them) paper and a second filtering material, and optionally one or more additional filtering materials. Tobacco smoke filtering material may be included. The filter or filter element may be (include) a rod comprising (eg formed therefrom) a web in close contact. The second and optional additional filtration materials are, for example, cellulose acetate tow, (additional) paper (e.g. different from other papers in the filter or filter element), natural and/or synthetic fibers, other fibrous tow, For example, it may be a nonwoven web made of polypropylene or the like.

In one embodiment of the present invention, the tobacco smoke filter (or filter element) comprising the tobacco smoke filtering material including paper is of the same or similar structure to that of a filter sold under the trademark MYRIA (product of Filtrona International Limited). And a flavor enhancing additive. In another embodiment, a cigarette smoke filter (or filter element) comprising a tobacco smoke filtering material comprising paper has the same or similar structure to that of a filter sold under the trademark PURACEL (product of Filtrona International Limited), and , A flavor enhancing additive is further included. In another embodiment, a cigarette smoke filter (or filter element) comprising a tobacco smoke filtering material comprising paper has the same or similar structure to that of a filter sold under the trademark CREST (product of Filtrona International Limited), and , A flavor enhancing additive is further included.

The filter or filter element (rod) may be overwrapped with a wrapper such as a wrapper of breathable paper. The filter or filter element according to the invention can be packaged in a standard range of plugwraps and can be vented in any conventional manner.

Flavor enhancing additives may be placed on or in the filter or filter element (e.g., on or in paper and/or wrapping, if present, and/or on a second or additional filtering material, if present. Can be impregnated). If more than one flavor enhancing additive is present, the additive may be in the same location (e.g., both/both on paper) or in different locations (one flavor enhancing additive on paper, one on additional filtration material, etc.) Can exist.

The inventors have surprisingly found that incorporating a flavor enhancing additive or additive as described above in a filter or filter element [for example as a fragrance oil of celery seeds (celery seed oil)] [or in a cigarette equipped with a paper filter as described above] ], It has been found that it can overcome the'paper taste' sensation, and can provide a cigarette with sensory characteristics similar to that from a cigarette using a cellulose acetate filter.

The filter or filter element may further comprise another additive that selectively reduces one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke. Here, the term "another additive that selectively reduces one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke" refers to one in tobacco smoke more than most compounds in the smoke (eg tar). It means an additive that proportionally reduces the yield of the above phenolic compounds (eg, proportionally reduces one or more of phenol, cresol, catechol, or resorcinol). The filter or filter element may further comprise one or more additives that selectively reduce one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke.

Preferably, the additional additive that selectively reduces one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke is polyethylene glycol (e.g. PEG200, PEG300, PEG400) or methoxypolyethylene glycol (e.g. mPEG350) to be. Preferably, an additional additive that selectively reduces one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke is added to the filter or filter element in an amount of up to 20% by weight of the paper in the filter or filter element. exist. For example, additional additives that selectively reduce one or more phenolic compounds may be present in an amount of 1 to 19% by weight of the paper in the filter or filter element. If one or more additional additives (additives that selectively reduce one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke) are present in the filter or filter element, additional additives (optionally one or more phenolic compounds are optionally The total amount of reducing additives) is preferably not more than 20% by weight of the paper in the filter or filter element.

Additional additives that selectively reduce one or more phenolic compounds may be placed on or in the filter or filter element (e.g., paper and/or wrapping paper, and/or a second or additional filtration material, if present). May be located on or impregnated therein). If more than one additional additive is present, the additive may be present in the same location (e.g., both/both on paper) or in different locations (one additive on paper, one on additional filtration material, etc.) .

The present inventors have found that polyethylene glycol (e.g., PEG 200, PEG300, and PGE400) and methoxy-polyethylene glycol (e.g. mPEG350) are the most effective additives for selectively reducing phenols in cigarette smoke. Surprisingly, the inventors also found that when the material is used in conjunction with paper, flavor enhancing additives or filters or filter elements containing the aforementioned additives, the yield of phenolic compounds (i.e., equivalent to that from cigarettes using conventional cellulose acetate filters) Filter cigarettes with more selective filtration than conventional paper filter cigarettes, and a desirable reduction in paper taste.

The filter element according to the invention can be used as a segment of a two-component, three-component, or other multi-component (multi-segment) filter. Two-component and other multi-component filters are known in the art.

In one embodiment, the two-component, three-component, or other multi-component filter comprises granular additive(s) such as activated carbon, silica gel, zeolite, ion exchange resin or sepiolite. It is preferable that the granular additive is not included in the filter element of the present invention (ie, included in one of the other segments of the multi-component filter). In one embodiment, the filter element of the present invention forms the mouth end of a two segment filter, and the tobacco end segment of the double filter comprises a granular additive.

The filter according to the invention can be used in machine-made cigarettes (eg, mass produced and packaged). Filters according to the invention can also be used with individually rolled cigarettes (e.g. hand-rolled cigarettes) or with Roll Your Own or Make-your-own products. Can be used as

In the filter cigarette according to the present invention, the filter of the present invention (or a filter comprising the filter element of the present invention) is coupled to a packaged cigarette with one end facing the cigarette. Filters may be, for example, ring tipping (a method that is fastened around the immediately adjacent ends of the [packaged] filter and rod to expose a large portion of the filter wrapper) or full tipping packaging (the entire filter Length and fastening around the proximal end of the tobacco rod). Any filter or filter cigarette according to the invention may be non-breathable, or may be ventilated by well-known methods, such as the use of pre-perforated or breathable plug wraps, and/or laser perforation of plug wraps and tipping wraps. have. The final filter cigarette can be of any circumference range commonly used in smoking products (eg, a circumference of about 14 mm to about 28 mm).

The invention also provides a filter cigarette comprising the cigarette smoke filter or filter element of the invention as described above.

The filter or filter element according to the invention can be manufactured as a continuous rod, as is well known in the art. The continuous rods are cut to lengths for subsequent use during continuous discharge from the outlet of the manufacturing machine. By this cutting, individual filters or filter elements as previously defined and described, each of which are then attached to individually wrapped tobacco rods, to form a filter cigarette. However, more generally, the continuously discharged rods are first cut to a length of at least 2 times (usually 4 or 6 times) for subsequent use; If the initial cut is more than 4 times the length, the latter will continue to be cut to 2 times the length for the filter cigarette assembly-where the 2 times length filter rods are assembled and joined between the combined pair of packaged tobacco rods (ring tipping or By full tipping packaging), then separated in the center to obtain two separate filter cigarettes. The present invention includes filter rods (and/or filter element rods) of several times the length (e.g., at least two times), and includes, for example, a plurality of filter rods with end and end joined.

The filter or filter element is a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 of Commission Regulation (EC) No. 1565/2000 and EU Flavor Information System ("FLAVIS") database. In addition to), additional flavoring agents such as menthol may be included.

According to the invention, in another aspect, a filter cigarette comprising a filter or filter element comprising paper and a wrapped tobacco rod, comprising a flavor enhancing additive (e.g., Attachment 1 to Commission Regulation (EC) No. 1565/2000) and A filter cigarette is provided which further comprises selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in the EU Flavor Information System ("FLAVIS") database. The filter cigarette may contain one or more flavor enhancing additives.

Flavor enhancing additives include alicyclic lactones (eg, alicyclic lactones having up to 20 carbon atoms such as C ₃ -C ₂₀ alicyclic lactones); Aromatic lactones (eg, aromatic lactones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic lactones); It may be an aromatic ketone (eg, an aromatic ketone having up to 20 carbon atoms, such as a C ₆ -C ₂₀ aromatic ketone), or a secondary alcohol or an ester of a secondary alcohol. The flavor enhancing additive may be an alkylphthalide, for example, a lactone, which is a phthalide such as (C ₁ -C ₆ branched or straight chain alkyl)-phthalide. The flavor enhancing additive may be a lactone having a FEMA GRAS number (group 11), for example χ-valerolactone (which is given a FEMA GRAS number FEMA 3103), χ-hexalactone (FEMA 2556), δ-hexalactone ( FEMA 3167), χ-heptalactone (FEMA 2539), χ-octalactone (FEMA 2796), δ-octalactone (FEMA 321), 4-hydroxy-3-pentanoic acid lactone (FEMA 3293), 5 -Hydroxy-2-decenoic acid δ-lactone (FEMA 3744), 4,4-dibutyl-χ-butyrolactone (FEMA 2372), mint lactone (FEMA 3764), dihydromentofurolactone (FEMA 3755) , 3-butylidenephthalide (FEMA 3333), 3-n-butylphthalide (FEMA 3334) and whiskey lactones (FEMA 3803). The flavor enhancing additive may be sedannolide. Flavor enhancing additives are included as part of a mixture comprising a flavor enhancing additive (e.g., a plant extract or vegetable oil or part of a non-degraded mixture such as seed oil or nut oil), such as a fragrance oil comprising a flavor enhancing additive. I can. The mixture containing a flavor enhancing additive (eg, a plant extract or vegetable oil or a non-decomposed mixture such as seed oil or nut oil) may include one or more flavor enhancing additives. For example, the flavor enhancement additive (or additives) may be included in the form of celery seed oil (eg, celery seed fragrance oil). Perfume oils of celery seeds include sedannolide and 3-butylphthalide. Preferably, the mixture containing flavor enhancing additives (e.g., plant extracts or vegetable oils or non-degraded mixtures such as seed oil or nut oil) has a FEMA GRAS number such as, for example, Masoia bark oil (FEMA 3747). Have.

The flavor enhancing additive may be placed on or in the filter or filter element (e.g., on paper and/or wrapping, if present, and/or on or in a second or additional filtration material, if present). May be impregnated], and/or on or within the tobacco surface, and/or on or within the wrapper of the wrapped tobacco rod. If more than one flavor enhancing additive is present, the additive may be in the same location (e.g., both/both on paper) or in different locations (one flavor enhancing additive on paper, one on additional filtration material, etc.) Can exist.

The filter cigarette may further comprise another additive that selectively reduces one or more phenolic compounds found in the volatile and/or semivolatile phase of tobacco smoke, as described above and disclosed herein. Another additive that selectively reduces the one or more phenolic compounds may be placed on or in the filter or filter element (e.g., paper and/or wrapping, if present, and/or a second Or placed on or impregnated in the additional filtering material], and/or on or within the tobacco surface, and/or within or within the wrapper surface of the wrapped tobacco rod.

According to the invention, in another aspect, Commission Regulation (EC) No. Of a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 of 1565/2000 and/or the EU Flavor Information System ("FLAVIS") database in a filter, filter element, or filter cigarette. Use or use in the manufacture thereof is provided. The filter, filter element, or filter cigarette may include paper (eg, may include a tobacco smoke filtering material including paper). The filter including paper may be, for example, a filter sold under the trademark MYRIA, a filter sold under the trademark PURACEL, or a filter having the same or similar structure to that of a filter sold under the trademark CREST. According to this aspect of the invention, a filter or filter element comprising paper (or as described above, for flavor enhancing additive(s) as described above (for example as a fragrance oil of seeds of celery (celery seed oil)) Cigarette with paper filter] or its use in its manufacture, can overcome the'paper taste' sensation (for example, proven by paired sensory comparison tests, well known in the art. And/or cigarettes with sensory characteristics similar to those of cigarettes with a cellulose acetate filter (e.g., as evidenced by paired sensory comparison tests well known in the art). together).

The flavor enhancing additive may include an alicyclic lactone (eg, an alicyclic lactone having 20 or less carbon atoms such as a C ₃ -C ₂₀ alicyclic lactone); Aromatic lactones (eg, aromatic lactones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic lactones); It may be an aromatic ketone (eg, an aromatic ketone having up to 20 carbon atoms, such as a C ₆ -C ₂₀ aromatic ketone), or a secondary alcohol or an ester of a secondary alcohol. The flavor enhancing additive may be an alkylphthalide, for example, a lactone which is a phthalide such as (C ₁ -C ₆ branched or straight chain alkyl)-phthalide. The flavor enhancing additive may be a lactone having a FEMA GRAS number (group 11), for example, χ-valerolactone (FEMA GRAS number FEMA 3103 is given), χ-hexalactone (FEMA 2556), δ-hexalactone (FEMA 3167), χ-heptalactone (FEMA 2539), χ-octalactone (FEMA 2796), δ-octalactone (FEMA 321), 4-hydroxy-3-pentanoic acid lactone (FEMA 3293), 5-hydroxy-2-decenoic acid δ-lactone (FEMA 3744), 4,4-dibutyl-χ-butyrolactone (FEMA 2372), mint lactone (FEMA 3764), dihydromentofurolactone (FEMA 3755) ), 3-butylidenephthalide (FEMA 3333), 3-n-butylphthalide (FEMA 3334) and whiskey lactones (FEMA 3803). The flavor enhancing additive may be sedannolide. Flavor enhancing additives are included as part of a mixture comprising a flavor enhancing additive (e.g., a plant extract or vegetable oil or part of a non-degraded mixture such as seed oil or nut oil), such as a fragrance oil comprising a flavor enhancing additive. I can. The mixture containing a flavor enhancing additive (eg, a plant extract or vegetable oil or a non-decomposed mixture such as seed oil or nut oil) may include one or more flavor enhancing additives. For example, the flavor enhancement additive (or additives) may be included in the form of celery seed oil (eg, celery seed fragrance oil). Perfume oils of celery seeds include sedannolide and 3-butylphthalide. Preferably, the mixture containing flavor enhancing additives (e.g., plant extracts or vegetable oils or non-degraded mixtures such as seed oil or nut oil) has a FEMA GRAS number such as, for example, Masoia bark oil (FEMA 3747). Have.

The inventors surprisingly found that Commission Regulation (EC) No. Flavor enhancing additives (or additives) selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 to 1565/2000 and/or in the EU Flavor Information System ("FLAVIS") database, do not burn tobacco It has been found that it can provide improved taste when used in (or with) a heating smoking article.

Several types of smoking articles are known that heat tobacco without burning it. Such smoking articles generally use a cellulose acetate filter, but tend to provide a poor taste compared to conventional cigarettes using a cellulose acetate filter. The inventors have surprisingly found that the inclusion of certain additives in cellulose acetate filters used in smoking articles that heat tobacco without burning them results in improved sensory characteristics for these smoking articles.

According to the present invention, in another aspect, there is provided a tobacco smoke filtering material; And Commission Regulation (EC) No. Filters or filter elements containing flavor enhancing additives selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 to 1565/2000 and/or in the EU Flavor Information System ("FLAVIS") database For heating smoking articles) is provided. Here, in the term "smoking material that heats a cigarette", smoking materials such as cigarettes and cigars that accompany the burning of the cigarette when used are excluded.

According to the invention, in another aspect, Commission Regulation (EC) No. Use of a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List listed in Attachment 1 to 1565/2000 and/or in the EU Flavor Information System ("FLAVIS") database, as a filter for smoking to heat tobacco or Use in filter elements or in the manufacture thereof, or in smoking articles to heat tobacco or in the manufacture thereof is provided.

The flavor enhancing additive may include an alicyclic lactone (eg, an alicyclic lactone having 20 or less carbon atoms such as a C ₃ -C ₂₀ alicyclic lactone); Aromatic lactones (eg, aromatic lactones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic lactones); It may be an aromatic ketone (eg, an aromatic ketone having up to 20 carbon atoms, such as a C ₆ -C ₂₀ aromatic ketone), or a secondary alcohol or an ester of a secondary alcohol. The flavor enhancing additive may be an alkylphthalide, for example, a lactone which is a phthalide such as (C ₁ -C ₆ branched or straight chain alkyl)-phthalide. The flavor enhancing additive may be a lactone having a FEMA GRAS number (group 11), for example, χ-valerolactone (FEMA GRAS number FEMA 3103 is given), χ-hexalactone (FEMA 2556), δ-hexalactone (FEMA 3167), χ-heptalactone (FEMA 2539), χ-octalactone (FEMA 2796), δ-octalactone (FEMA 321), 4-hydroxy-3-pentanoic acid lactone (FEMA 3293), 5-hydroxy-2-decenoic acid δ-lactone (FEMA 3744), 4,4-dibutyl-χ-butyrolactone (FEMA 2372), mint lactone (FEMA 3764), dihydromentofurolactone (FEMA 3755) ), 3-butylidenephthalide (FEMA 3333), 3-n-butylphthalide (FEMA 3334) and whiskey lactones (FEMA 3803). The flavor enhancing additive may be sedannolide. Flavor enhancing additives are included as part of a mixture comprising a flavor enhancing additive (e.g., a plant extract or vegetable oil or part of a non-degraded mixture such as seed oil or nut oil), such as a fragrance oil comprising a flavor enhancing additive. I can. The mixture containing a flavor enhancing additive (eg, a plant extract or vegetable oil or a non-decomposed mixture such as seed oil or nut oil) may include one or more flavor enhancing additives. For example, the flavor enhancement additive (or additives) may be included in the form of celery seed oil (eg, celery seed fragrance oil). Perfume oils of celery seeds include sedannolide and 3-butylphthalide. Preferably, the mixture containing flavor enhancing additives (e.g., plant extracts or vegetable oils or non-degraded mixtures such as seed oil or nut oil) has a FEMA GRAS number such as, for example, Masoia bark oil (FEMA 3747). Have.

According to the present invention, there is provided a tobacco smoke filter having the advantage of a paper filter, which has no unpleasant paper taste effect and/or has a phenolic preservation power at least similar to that of a cellulose acetate filter.

Hereinafter, the present invention will be described in detail with reference to Examples.

Example 1

A sample paper filter was prepared from cylindrical rods (length 15 mm, circumference 24.50 mm) of paper formed from a pore-free porous web of 100% wood pulp fibers according to the method presented in patent document GB2075328A.

The paper is formed on an inclined wire machine from fibers of 2.5 to 6 mm in length, and has 15 to 35 g of finished material (before crease) per square meter (by the method presented in GB2075328). First, a flavoring solution comprising a flavor enhancing additive in the form of essential celery seed oil [undegraded mixture of compounds including flavor enhancing additives sedannolide and 3-butylphthalide] is used to apply flavor to paper. It is applied to the finished paper (before crease) that proceeds continuously by a conventional method (e.g., printing wheel, etc.). Additional additives in the form of polyethylene glycol are applied to the paper by methods well known in the art. Subsequently, the finished web (additive applied) of the paper running in the longitudinal direction is progressed between the corrugated cooperative rolls in the circumferential direction, and then successively joined in the lateral direction (as a paper web in the longitudinal direction). During) it is made in the form of a rod. The obtained continuously produced rod is continuously cut to a predetermined length by a known method to obtain a product filter or filter rod.

Sample cigarettes were assembled using the sample filter prepared as described above. Subsequently, the yield of phenol, o-, m- and p-cresol (collectively referred to as mono-hydroxyphenol) was determined for all samples under ISO smoking conditions. The yield was compared to a control cigarette (having the same dimensions, but containing a conventional cellulose acetate filter) smoked under ISO smoking conditions as well.

A sample filter according to the invention comprising a paper filter has been found to selectively reduce phenol; The exposure of the aforementioned phenolic compounds has been found to be comparable to a cellulose acetate filter cigarette.

Example 2

As a result of the taste test (using a method well known in the art), the unpleasant “paper taste” effect on the taste of the cigarette was reduced, and further excluded by incorporating the flavor enhancing additive according to an aspect of the present invention.

Sensory tests were conducted by a judge of trained professional smokers. Samples of premium branded commercial cigarettes were purchased in one lot from a retail store. This brand had a one piece cellulose acetate ('monoacetate') filter, and provided a'control' cigarette ('C') below.

Filters were removed from the first group of cigarettes and replaced with machine-made paper filters of equivalent tar retention. These filters are hereinafter referred to as unmodified paper-filtered cigarettes ('P').

The filter was also removed from the second group of cigarettes and replaced with a machine-made paper filter of equivalent tar retention capacity (same as for group P). A metered amount of the flavor solution containing the flavor enhancing additive (eg, including the flavor enhancing additive in the form of essential celery seed oil) is injected into each paper filter and the cigarette is aged for about 3-4 weeks. This filter is hereinafter referred to as a modified paper-filtered cigarette ('P+').

Subsequently, a corresponding sensory comparison test (known in the art) by the judges was performed. The judges compared the unmodified paper-filtered cigarette ('P') to the monoacetate control ('C'); The modified paper filter ('P+') was compared with'C'.

Panelists decided that'P' was drier than'C' and had less tobacco and overall flavor. This is an expected fact. However, the panelist determined that the characteristics of the'P+' filter (the filter including the flavor enhancing additive according to an aspect of the present invention) fall within the range of fluctuations between normal packs of the'C' cigarette. That is, the effect of "paper taste" on the taste of the cigarette was greatly reduced.

Example 3

Smoking that heats the cigarette without burning it has been tested. A metered amount of a flavor solution comprising a flavor enhancing additive (e.g., comprising a flavor enhancing additive in the form of essential celery seed oil) was injected into the cellulose acetate filter of the smoking article that heated the tobacco without burning it. The smokers' judges pointed out that this resulted in superior sensory characteristics compared to the unmodified version of the same product.

Claims (17)

Tobacco smoke filtering materials including paper; And
χ-valerolactone, χ-hexalactone, δ-hexalactone, χ-heptalactone, χ-octalactone, δ-octalactone, 4-hydroxy-3-pentenoic acid lactone, 5-hydroxy- 2-decenoic acid δ-lactone, 4,4-dibutyl-χ-butyrolactone, mint lactone, dihydromentofurolactone, 3-butylidenephthalide, 3-n-butylphthalide, whiskey (Whiskey ) Flavour enhancing additives selected from lactones or sedannolides
Including a cigarette smoke filter element. The method of claim 1,
The tobacco smoke filter element, wherein the flavor enhancing additive is included in the form of an unresolved mixture of compounds comprising the flavor enhancing additive. The method of claim 2,
A tobacco smoke filter element, wherein the non-decomposed mixture of compounds comprising the flavor enhancing additive is an essential oil. The method of claim 2,
Tobacco smoke filter element, wherein the non-decomposed mixture of compounds comprising the flavor enhancing additive is a fragrance oil of celery seed or Masoia bark oil. The method of claim 1,
Cigarette smoke filter element, wherein the paper is filter paper, aperture paper or crepe paper. The method of claim 1,
The tobacco smoke filter element, wherein the paper is a web of paper that is laterally joined in a rod shape and held in that shape. The method of claim 1,
The tobacco smoke filter element, wherein the tobacco smoke filtering material is a cylindrical seal of the filtering material. The method of claim 1,
The tobacco smoke filter element, wherein the tobacco smoke filtering material comprises paper and one or more additional filtering materials. The method of claim 1,
A tobacco smoke filter element further comprising an additional additive that selectively reduces one or more phenolic compounds found in the volatile and/or semi-volatile phase of cigarette smoke. The method of claim 9,
The tobacco smoke filter element, wherein the additional additive is polyethylene glycol or methoxypolyethylene glycol. The method of claim 9,
The tobacco smoke filter element, wherein the additional additive is present in an amount of up to 20% by weight based on the weight of paper in the filter element. The method of claim 1,
Tobacco smoke filter element overwrapped by a wrapper. A tobacco smoke filter comprising a filter element according to any one of the preceding claims. A filter cigarette comprising a filter according to claim 13 and bonded to a wrapped tobacco rod. A filter rod having a plurality of times the length, comprising a plurality of filter elements according to any one of claims 1 to 12, the end and the end being joined. A filter cigarette comprising a filter or filter element comprising paper, and a wrapped tobacco rod,
χ-valerolactone, χ-hexalactone, δ-hexalactone, χ-heptalactone, χ-octalactone, δ-octalactone, 4-hydroxy-3-pentenoic acid lactone, 5-hydroxy- 2-decenoic acid δ-lactone, 4,4-dibutyl-χ-butyrolactone, mint lactone, dihydromentofurolactone, 3-butylidenephthalide, 3-n-butylphthalide, whiskey lactone or The filter cigarette further comprising a flavor enhancing additive selected from sedannolide. As a method of using a flavor enhancing additive,
The flavor enhancing additives include χ-valerolactone, χ-hexalactone, δ-hexalactone, χ-heptalactone, χ-octalactone, δ-octalactone, 4-hydroxy-3-pentenoic acid lactone, 5-hydroxy-2-decenoic acid δ-lactone, 4,4-dibutyl-χ-butyrolactone, mint lactone, dihydromentofurolactone, 3-butylidenephthalide, 3-n-butylphthal Ride, whiskey lactone or sedannolide, wherein the flavor enhancing additive is used in or in the manufacture of a filter or filter element for smoking to heat tobacco, or in or in the manufacture of tobacco to heat tobacco .