KR102055406B1 - Tobacco smoke filter - Google Patents

Abstract

The present invention relates to a tobacco smoke filtration 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 tobacco smoke filters (eg for cigarettes) and methods of making the same.

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

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

Another limitation with paper filters is the retention of toxic phenolic compounds (e.g., phenol, cresol, catechol and resorcinol) found in the volatile and semivolatile phases of tobacco smoke compared to cellulose acetate filters. It is a fact that it decreases, which leads to a further increase in 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 for phenolic compounds rather than the inherent defects of paper filters. However, it goes without saying that it is still necessary to increase the phenolic retention of the paper filter so that smokers are not exposed to high concentrations of phenolic compounds when they smoke the paper filter compared to the cigarette using the cellulose acetate filter.

Therefore, it is desirable to provide a cigarette filter that has no unpleasant paper taste effect and / or has the advantages (biodegradability, etc.) of a paper filter having at least similar phenolic retention as in the case of a cellulose acetate filter.

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

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

As used herein, the term "anti-coagulant enhancement additive" reduces the unpleasant "paper taste" effect on the taste of cigarettes, and / or makes smoker perceptions of a more unpleasant and drier sense compared to cigarettes using known cellulose acetate filters. It means an additive to reduce. That is, the taste of paper filter-used cigarettes containing flavor enhancing additives should be within the range of taste variability per conventional cigarette associated with commercial brands of cellulose acetate filter-used cigarettes. Various attempts have been made to classify flavourants according to their chemical properties and distribute them into groups of structurally related compounds. To this end, the European Union has compiled a list of 34 chemical groups for flavor substances, which are listed in Commission Regulation (EC) No. Appendix 1 of 1565/2000 and the EU Flavor Information System (“FLAVIS”) database. The present invention uses a flavor enhancing additive selected from group 11 and / or group 21 of this list.

Flavor enhancing additives include alicyclic lactones (eg, cycloaliphatic 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); Aromatic ketones (eg, aromatic ketones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic ketones), or esters of secondary or secondary alcohols. The flavor enhancing additive may be lactone, which is a phthalide such as alkylphthalides, for example (C ₁ -C ₆ branched or straight alkyl) -phthalides. The Association of Spice and Extract Manufacturers (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 with a FEMA GRAS number (group 11), for example χ-valerolactone (assigned 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 lactone (FEMA 3803). The flavor enhancing additive may be sedannolide. A flavor enhancing additive may be a portion of a mixture comprising a flavor enhancing additive, such as, for example, an essential oil comprising a flavor enhancing additive (eg, plant extracts or decomposition such as vegetable oil or seed oil or nut oil). As part of an unresolved mixture). The mixtures comprising the flavor enhancing additives (eg, plant extracts or vegetable oils or undigested mixtures such as seed oil or nut oils) may comprise one or more flavor enhancing additives. For example, flavor enhancing additives (or additives) may be included in the form of celery seed oil (eg, fragrance oil of celery seed). The fragrance oils of celery seed include sedannolide and 3-butylphthalide. Celery seed oil is known as a fragrance for cigarettes, but the use of celery seed oil in combination with paper filter-used cigarettes has never been proposed. Preferably, the mixture comprising a flavor enhancing additive (e.g., plant extract or vegetable oil or undigested mixture such as seed oil or nut oil) is, for example, Masassoia bark oil (FEMA 3747) and Have the same FEMA GRAS number.

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

The tobacco 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 tobacco 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 can be any paper (or any type of paper) conventionally used for filters or filter elements. The paper may be, for example, filter paper, aperture paper, crepe paper, or the like. The paper may be in the form of a web of paper, for example, held together in a lateral direction in the form of a rod. 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 binder (eg, plasticizer) may be included to increase the hardness of the finished filter or filter element (rod). The paper may be in the form of a web of corrugated and / or fibrillated paper in the longitudinal direction which is joined in the form of rods and held in the form, for example, as disclosed in patent document GB2075328. . The filter or filter element may be (or may comprise) a rod (eg, cylindrical rod) of filtration material (eg, formed) including paper (eg, web of paper). The filter or filter element may comprise tobacco smoke filtration material comprising paper and one or more additional filtration materials. The filter or filter element is in the form of a coherent web comprising paper and a second filtration material, and optionally (eg, formed from a material comprising them). Tobacco smoke filtration material. The filter or filter element may be (include) a rod comprising (eg formed from) a web in close contact. The second and optional additional filtration materials can be, for example, cellulose acetate tow, (additional) paper (eg different from other papers in the filter or filter element), natural and / or synthetic fibers, other fiber tows, For example, it may be a nonwoven web made of polypropylene or the like.

In one embodiment of the invention, the tobacco smoke filter (or filter element) comprising tobacco smoke filtration material comprising paper has a structure identical or similar to that of a filter sold under the trademark MYRIA (product of Filtrona International Limited). And further comprises a flavor enhancing additive. In another embodiment, the tobacco smoke filter (or filter element) comprising tobacco smoke filtration material comprising paper is of the same or similar structure as the filter sold under the trademark PURACEL (product of Filtrona International Limited) and And flavor enhancing additives. In another embodiment, the tobacco smoke filter (or filter element) comprising tobacco smoke filtration material comprising paper is of the same or similar structure as the filter sold under the trademark CREST (product of Filtrona International Limited) and And flavor enhancing additives.

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

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

The inventors have surprisingly found that if a flavor enhancing additive or additives as described above are incorporated into a filter or filter element (for example as an aromatic oil of celery seed (celery seed oil)) [or a cigarette with a paper filter as described above, ], It has been found that it is possible to overcome the 'paper taste' sensation and provide a cigarette with sensory characteristics similar to the sensation from a cellulose acetate filter used cigarette.

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 phases of tobacco smoke. Here, the term "another additive that selectively reduces one or more phenolic compounds found in the volatile and / or semivolatile phases of tobacco smoke" is one in tobacco smoke more than most of the compounds in the smoke (eg tar). By additives that proportionally reduce the yield of the above phenolic compounds (eg, proportionally reducing 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 phases of tobacco smoke.

Preferably, additional additives that selectively reduce one or more phenolic compounds found in the volatile and / or semivolatile phases of tobacco smoke include polyethylene glycol (eg PEG200, PEG300, PEG400) or methoxypolyethylene glycol (eg mPEG350). to be. Preferably, additional additives that selectively reduce one or more phenolic compounds found in the volatile and / or semivolatile phases of tobacco smoke may be 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 amounts of 1 to 19 weight percent of the paper in the filter or filter element. If the filter or filter element has one or more additional additives (additives that selectively reduce one or more phenolic compounds found in the volatile and / or semivolatile phases of the tobacco smoke), the additional additives (optionally select one or more phenolic compounds) The total amount of additives) is preferably 20% by weight or less of the paper in the filter or filter element.

Additional additives that selectively reduce one or more phenolic compounds may be located on or in the filter or filter element (eg, paper and / or wrapping paper, and / or a second or additional filtering material, if present). Or impregnated therein). If one or more additional additives are present, the additives may be present at the same location (eg both / both on paper) or at different locations (one additive on paper, one on additional filtration material, etc.). .

The inventors have found that polyethylene glycol (eg PEG 200, PEG300, and PGE400) and methoxy-polyethylene glycol (eg mPEG350) are the most effective additives for selectively reducing phenols in tobacco smoke. Surprisingly, the inventors also note that when the materials are used in conjunction with paper, flavor enhancing additives or filters or filter elements containing the aforementioned additives, the yields of phenolic compounds comparable to those from cigarettes using conventional cellulose acetate filters (ie, Filter tobacco 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 multicomponent (multisegment) filter. Bicomponent and other multicomponent filters are known in the art.

In one embodiment, the bicomponent, tricomponent, or other multicomponent filter comprises granular additive (s) such as activated carbon, silica gel, zeolites, ion exchange resins, or sepiolites. Preferably, the granular additive is not included in the filter element of the present invention (ie, included in one of the other segments of the multicomponent filter). In one embodiment, the filter element of the invention forms the mouth end of a two segment filter, and the tobacco end segment of the dual filter comprises granular additives.

The filter according to the invention can be used for machine-made cigarettes (eg mass produced and packaged). The filter according to the invention can also be used in conjunction with individually rolled cigarettes (eg hand rolled cigarettes) or 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 the filter comprising the filter element of the present invention) is coupled to a packaged cigarette with one end facing the cigarette. The filter can be, for example, reel tipping (a way of fastening around the [packed] filter and the immediate adjoining end of the rod so that a large portion of the filter wrapper is exposed) or a full tipping package (full filter) Length and manner of engagement around the adjacent ends of the tobacco rod). Any filter or filter cigarette according to the invention may not be aerated, or may be aerated by a well known method, such as a perforated or breathable plug wrap, and / or the use of laser perforation and tipping packaging of the plug wrap. have. The final filter cigarette may be in any circumferential range commonly used in smoking products (eg, circumference of about 14 mm to about 28 mm).

The present invention also provides a filter cigarette comprising the tobacco smoke filter or filter element of the present 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. Continuous rods are cut to a constant length for subsequent use while continuously exiting the outlet of the manufacturing machine. This cleavage results in individual filters or filter elements as defined and described above, each of which is then attached to a separately packaged tobacco rod to form a filter cigarette. More generally, however, continuously discharged rods are first cut to a length of at least two times (usually four or six times) for subsequent use; If the initial cut is more than four times the length, the latter is continuously cut to two times the length for the filter cigarette assembly, where the double length filter rods are assembled and joined between a pair of packaged tobacco rods combined (ring tipping or By full tipping packaging), followed by separation in the center to obtain two individual filter cigarettes. The present invention includes a filter rod (and / or filter element rod) several times in length (eg, two or more times), and includes, for example, a plurality of filter rods with end to end coupling.

The filter or filter element may comprise 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 the EU Flavor Information System ("FLAVIS") database. (In addition to) may include additional flavoring agents such as menthol.

According to the present invention, in another aspect, a filter cigarette comprising a filter or filter element comprising paper and a packaged tobacco rod, comprising a flavor enhancing additive (eg, Attachment 1 of Commission Regulation (EC) No. 1565/2000 and A filter cigarette is provided, further comprising a group selected from group 11 or group 21 of the European Union Chemical Groupings List as described in the EU Spice Information System (“FLAVIS”) database. The filter cigarette may comprise one or more flavor enhancing additives.

Flavor enhancing additives include alicyclic lactones (eg, cycloaliphatic 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); Aromatic ketones (eg, aromatic ketones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic ketones), or esters of secondary or secondary alcohols. The flavor enhancing additive may be lactone, which is a phthalide such as alkylphthalides, for example (C ₁ -C ₆ branched or straight alkyl) -phthalides. The flavor enhancing additive may be a lactone with a FEMA GRAS number (group 11), for example χ-valerolactone (assigned 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 lactone (FEMA 3803). The flavor enhancing additive may be sedannolide. A flavor enhancing additive may be included as part of a mixture comprising a flavor enhancing additive, such as, for example, a fragrance oil comprising a flavor enhancing additive (eg, a plant extract or part of an undegraded mixture such as seed oil or nut oil). Can be. The mixtures comprising the flavor enhancing additives (eg, plant extracts or vegetable oils or undigested mixtures such as seed or nut oils) may comprise one or more flavor enhancing additives. For example, flavor enhancing additives (or additives) may be included in the form of celery seed oil (eg, fragrance oil of celery seed). The fragrance oils of celery seed include sedannolide and 3-butylphthalide. Preferably, said mixture comprising flavor enhancing additives (e.g., plant extracts or vegetable oils or undigested mixtures such as seed or nut oils), for example, contains a FEMA GRAS number such as Masoia Bark Oil (FEMA 3747). Have

The flavor enhancing additive may be located on or in the filter or filter element [eg, on paper and / or wrapping paper if present, and / or on a second or additional filtration material, if present or on. Impregnated; and / or in or on or in the tobacco surface and / or in the wrapping paper surface or in the packaged tobacco rod. If one or more flavor enhancing additives are present, the additives may be present at the same location (e.g. both / on paper) or at different locations (one flavor enhancing additive on paper, one on additional filtration material, etc.) May exist.

The filter cigarette may further comprise another additive that selectively reduces one or more phenolic compounds found in the volatile and / or semivolatile phases of tobacco smoke, as previously described and disclosed herein. Another additive that selectively reduces the one or more phenolic compounds may be located on or in the filter or filter element [eg, paper and / or wrapping paper if present, and / or second if present Or impregnated on or impregnated with additional filtration material], and / or in or on or in the tobacco surface or in the wrapping paper surface of the packaged tobacco rod.

According to the present invention, in another aspect, the Commission Regulation (EC) No. In a filter, filter element, or filter cigarette, of a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List, listed in Attachment 1 and / or EU Flavor Information System ("FLAVIS") database of 1565/2000. Uses or uses in the preparation thereof are provided. The filter, filter element, or filter cigarette may comprise paper (eg, may comprise tobacco smoke filtration material comprising 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 as the filter sold under the trademark CREST. Filters or filter elements comprising paper (or as described above) of a flavor enhancing additive (s) as described above (eg as fragrance oil of celery (celery seed oil)) according to this aspect of the invention Use in cigarettes with paper filters, or in the manufacture thereof, can overcome the 'paper taste' sensation (eg, as evidenced by paired sensory comparison tests, well known in the art). And / or cigarettes with similar sensory characteristics as in the case of cellulose acetate filter-used cigarettes (eg, as evidenced by paired sensory comparison tests, well known in the art). together).

The flavor enhancing additives may include alicyclic lactones (eg, cycloaliphatic 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); Aromatic ketones (eg, aromatic ketones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic ketones), or esters of secondary or secondary alcohols. 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 alkyl) -phthalide. The spice enhancing additive may be lactone (Group 11) with a FEMA GRAS number, for example χ-valerolactone (assigned 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 lactone (FEMA 3803). The flavor enhancing additive may be sedannolide. A flavor enhancing additive may be included as part of a mixture comprising a flavor enhancing additive, such as, for example, a fragrance oil comprising a flavor enhancing additive (eg, a plant extract or part of an undegraded mixture such as seed oil or nut oil). Can be. The mixtures comprising the flavor enhancing additives (eg, plant extracts or vegetable oils or undigested mixtures such as seed or nut oils) may comprise one or more flavor enhancing additives. For example, flavor enhancing additives (or additives) may be included in the form of celery seed oil (eg, fragrance oil of celery seed). The fragrance oils of celery seed include sedannolide and 3-butylphthalide. Preferably, said mixture comprising flavor enhancing additives (e.g., plant extracts or vegetable oils or undigested mixtures such as seed or nut oils), for example, contains a FEMA GRAS number such as Masoia Bark Oil (FEMA 3747). Have

The inventors have surprisingly found that Commission Regulation (EC) No. A flavor enhancing additive (or additives) selected from Group 11 or Group 21 of the European Union Chemical Groupings List, listed in Attachment 1 and / or EU Flavor Information System (“FLAVIS”) Database of 1565/2000, does not burn tobacco It has been found that it can provide an improved taste when used in (or together with) smoking smoking articles.

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

According to another aspect of the present invention, there is provided an article comprising: a tobacco smoke filtration material; And Commission Regulation (EC) No. Filters or filter elements (eg, tobacco) comprising a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List, listed in Attachment 1 and / or EU Flavor Information System ("FLAVIS") database of 1565/2000. Heating for smoking) is provided. Herein, the term “smoking cigarettes that heat cigarettes” excludes smoking substances such as cigarettes and cigars which, in use, entail the combustion of tobacco.

According to the present invention, in another aspect, the Commission Regulation (EC) No. The use of a flavor enhancing additive selected from Group 11 or Group 21 of the European Union Chemical Groupings List, listed in Attachment 1 and / or EU Flavor Information System ("FLAVIS") database of 1565/2000, for filters for smoking tobacco heating or Uses in, or in the manufacture of, a filter element, or use in, or in the manufacture of, smoking materials for heating tobacco.

The flavor enhancing additives may include alicyclic lactones (eg, cycloaliphatic 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); Aromatic ketones (eg, aromatic ketones having up to 20 carbon atoms, such as C ₆ -C ₂₀ aromatic ketones), or esters of secondary or secondary alcohols. 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 alkyl) -phthalide. The spice enhancing additive may be lactone (Group 11) with a FEMA GRAS number, for example χ-valerolactone (assigned 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 lactone (FEMA 3803). The flavor enhancing additive may be sedannolide. A flavor enhancing additive may be included as part of a mixture comprising a flavor enhancing additive, such as, for example, a fragrance oil comprising a flavor enhancing additive (eg, a plant extract or part of an undegraded mixture such as seed oil or nut oil). Can be. The mixtures comprising the flavor enhancing additives (eg, plant extracts or vegetable oils or undigested mixtures such as seed oil or nut oils) may comprise one or more flavor enhancing additives. For example, flavor enhancing additives (or additives) may be included in the form of celery seed oil (eg, fragrance oil of celery seed). The fragrance oils of celery seed include sedannolide and 3-butylphthalide. Preferably, said mixture comprising flavor enhancing additives (e.g., plant extracts or vegetable oils or undigested mixtures such as seed or nut oils), for example, contains a FEMA GRAS number such as Masoia Bark Oil (FEMA 3747). Have

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

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

Example  One

A sample paper filter was prepared from a cylindrical rod of paper (length 15 mm, circumference 24.50 mm) formed of a porous web without holes of 100% wood pulp fibers according to the method presented in patent document GB2075328A.

The paper is formed in a wire machine inclined from fibers 2.5 to 6 mm in length and has 15 to 35 g of finished material (prior to creasing) per square meter (by the method presented in GB2075328). A flavoring solution comprising a first, flavor enhancing additive in the form of essential celery seed oil [an undigested mixture of compounds comprising a flavor enhancing additive sedanolide and 3-butylphthalide] is applied to the paper for flavoring. Apply to finished paper (prior to creasing) which proceeds continuously by conventional methods (eg printing wheels, etc.). Additional additives in the form of polyethylene glycol are applied to the paper by methods well known in the art. Then, the finished web of paper running on the longitudinal direction (to which the additive is applied) is run between the circumferentially corrugated rolls and then laterally joined together (the paper web runs in the longitudinal direction). While) in the form of rods. The continuously produced rod obtained is cut to a predetermined length continuously by the method also known, and the filter or filter rod which is a product is obtained.

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

Sample filters according to the invention comprising paper filters have been found to selectively reduce phenol; Exposure of the aforementioned phenolic compounds has been found to be comparable to cellulose acetate filter cigarettes.

Example  2

Taste testing (using methods well known in the art) reduced the unpleasant "paper taste" effect on the taste of cigarettes and was further ruled out by including flavor enhancing additives according to one aspect of the present invention.

Sensory tests were conducted by judges of trained professional smokers. Samples of a good brand of commercial cigarettes were purchased in a lot from a retail store. The brand had a one piece cellulose acetate ('monoacetate') filter and provided 'control' cigarettes ('C') in the following.

The 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-filter used cigarettes ('P').

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

A response sensory comparison test (known in the art) was then conducted by the judges. Judges will compare the unmodified paper-filtered cigarette ('P') with the monoacetate control ('C'); The modified paper filter ('P +') was compared to 'C'.

Panelists judged that 'P' was drier than 'C' and had less tobacco and overall flavor. This is expected fact. However, panelists determined that the characteristics of the 'P +' filter (filter comprising a flavor enhancing additive according to one aspect of the present invention) fall within the normal range of packs of 'C' cigarettes. In other words, the effect of "paper taste" on the taste of cigarettes was greatly reduced.

Example  3

Smoking materials that were heated without burning cigarettes were tested. A metered amount of flavor solution containing a flavor enhancing additive (eg, comprising a flavor enhancing additive in the form of the essential celery seed oil) was injected into a cellulose acetate filter of a smoking article that heats the cigarette without burning it. The smoker's judges pointed out that this resulted in superior sensory features compared to the unmodified version of the same product.

Claims (26)

A tobacco smoke filter element comprising a tobacco smoke filtration material made from essential oil of seed of celery and paper. The method of claim 1,
Tobacco smoke filter element, wherein the paper is filter paper, aperture paper or crepe paper. The method of claim 1,
A tobacco smoke filter element, wherein the paper is a web of paper that is laterally joined in a rod form and held in that form. The method of claim 1,
The tobacco smoke filtration material is a cylindrical rod of filtration material, or
Tobacco smoke filtration material comprises paper and one or more additional filtration materials. The method of claim 1,
A tobacco smoke filter element further comprising additional additives to selectively reduce one or more phenolic compounds found in the volatile and / or quasi-volatile phase of the cigarette smoke. The method of claim 5,
Tobacco smoke filter element, wherein the additional additive is polyethylene glycol or methoxypolyethylene glycol. The method of claim 5,
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 overlaid by a wrapper. A tobacco smoke filter comprising the tobacco smoke filter element according to claim 1. A filter cigarette comprising the filter according to claim 9. A filter cigarette comprising the tobacco smoke filter element according to any one of claims 1 to 8 and bonded to a wrapped cigarette rod. A filter rod of multiple times length, comprising a plurality of filters according to claim 9, wherein the ends and ends are joined. A filter rod of multiple times length, comprising a plurality of filter elements according to any one of the preceding claims, wherein the ends and the ends are joined. As a method of using essential celery seed oil,
Use celery seed oil in a filter or filter element made of paper for smoking articles that heat the cigarette, or in the manufacture of the filter or filter element, or
A method of using celery seed oil in a smoking article comprising a filter or filter element made of paper for heating tobacco, or in the manufacture of a smoking article. delete delete delete delete delete delete delete delete delete delete delete delete