EP2932860B1 - Cigarette - Google Patents
Cigarette Download PDFInfo
- Publication number
- EP2932860B1 EP2932860B1 EP12889824.4A EP12889824A EP2932860B1 EP 2932860 B1 EP2932860 B1 EP 2932860B1 EP 12889824 A EP12889824 A EP 12889824A EP 2932860 B1 EP2932860 B1 EP 2932860B1
- Authority
- EP
- European Patent Office
- Prior art keywords
- filter
- cigarette
- paper
- draw resistance
- segment
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 235000019504 cigarettes Nutrition 0.000 title claims description 123
- 239000000463 material Substances 0.000 claims description 43
- 239000000796 flavoring agent Substances 0.000 claims description 34
- 235000019634 flavors Nutrition 0.000 claims description 34
- 241000208125 Nicotiana Species 0.000 claims description 29
- 235000002637 Nicotiana tabacum Nutrition 0.000 claims description 29
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 claims description 28
- 239000000945 filler Substances 0.000 claims description 10
- 230000001007 puffing effect Effects 0.000 claims description 4
- 239000000779 smoke Substances 0.000 claims description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 4
- 239000002775 capsule Substances 0.000 description 4
- 230000003247 decreasing effect Effects 0.000 description 4
- 230000035699 permeability Effects 0.000 description 4
- 230000000391 smoking effect Effects 0.000 description 4
- 239000003463 adsorbent Substances 0.000 description 3
- 238000002485 combustion reaction Methods 0.000 description 3
- 230000007423 decrease Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 238000010561 standard procedure Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- NOOLISFMXDJSKH-UTLUCORTSA-N (+)-Neomenthol Chemical compound CC(C)[C@@H]1CC[C@@H](C)C[C@@H]1O NOOLISFMXDJSKH-UTLUCORTSA-N 0.000 description 1
- KRKNYBCHXYNGOX-UHFFFAOYSA-K Citrate Chemical compound [O-]C(=O)CC(O)(CC([O-])=O)C([O-])=O KRKNYBCHXYNGOX-UHFFFAOYSA-K 0.000 description 1
- NOOLISFMXDJSKH-UHFFFAOYSA-N DL-menthol Natural products CC(C)C1CCC(C)CC1O NOOLISFMXDJSKH-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 230000002596 correlated effect Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 230000002542 deteriorative effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 229940041616 menthol Drugs 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/02—Manufacture of tobacco smoke filters
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D1/00—Cigars; Cigarettes
- A24D1/02—Cigars; Cigarettes with special covers
- A24D1/027—Cigars; Cigarettes with special covers with ventilating means, e.g. perforations
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/04—Tobacco smoke filters characterised by their shape or structure
- A24D3/043—Tobacco smoke filters characterised by their shape or structure with ventilation means, e.g. air dilution
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/061—Use of materials for tobacco smoke filters containing additives entrapped within capsules, sponge-like material or the like, for further release upon smoking
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/062—Use of materials for tobacco smoke filters characterised by structural features
- A24D3/063—Use of materials for tobacco smoke filters characterised by structural features of the fibers
-
- A—HUMAN NECESSITIES
- A24—TOBACCO; CIGARS; CIGARETTES; SIMULATED SMOKING DEVICES; SMOKERS' REQUISITES
- A24D—CIGARS; CIGARETTES; TOBACCO SMOKE FILTERS; MOUTHPIECES FOR CIGARS OR CIGARETTES; MANUFACTURE OF TOBACCO SMOKE FILTERS OR MOUTHPIECES
- A24D3/00—Tobacco smoke filters, e.g. filter-tips, filtering inserts; Filters specially adapted for simulated smoking devices; Mouthpieces for cigars or cigarettes
- A24D3/06—Use of materials for tobacco smoke filters
- A24D3/08—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent
- A24D3/10—Use of materials for tobacco smoke filters of organic materials as carrier or major constituent of cellulose or cellulose derivatives
Definitions
- the present invention relates to a thinly rolled cigarette.
- a thinly rolled cigarette for example, a cigarette called "Superslim", which has a diameter of 5.4 mm, is on the market.
- a further thinner cigarette called “Microslim” is also known.
- These thinly rolled cigarettes have a specific problem resulting from their thinness. Namely, thinly rolled cigarette is apt to have an increased draw resistance of the cigarette because of its thinness.
- the cigarette draw resistance is correlated to the ease of smoking by a smoker, and a cigarette having an excessively high draw resistance is difficult to be smoked. It is generally said that the cigarette draw resistance is desired to be 80 to 150 mmH 2 O.
- Patent Document 1 discloses a thinly rolled cigarette (diameter: 5 to 7 mm) having a tar amount of 1 mg or less and including a dual-segment filter. Actually, the present inventors analyzed some commercial available thinly rolled cigarettes, but could not find a cigarette having a cigarette draw resistance of 150 mmH 2 O or less and a tar value of 8 mg or more in mainstream smoke.
- the multi-segment filter when a multi-segment filter is employed in a cigarette, the multi-segment filter has a higher filter draw resistance as compared to a plain filter because the multi-segment filter has a plurality of segments. That is, the multi-segment filter has a larger amount of paper surrounding a filter material as compared to the plain filter, and therefore the filter material should have a smaller diameter.
- the filter draw resistance greatly increases.
- a flavor releasing material-containing filter and a multi-segment filter are apt to have an increased filter draw resistance. Therefore, in a thinly rolled cigarette including such a filter, it is further difficult to achieve both a desired low cigarette draw resistance and a high tar amount.
- an object of the present invention is to provide a thinly rolled cigarette comprising a flavor releasing material-containing filter, the thinly rolled cigarette having a low cigarette draw resistance and a high tar amount.
- an object of the present invention is to provide a thinly rolled cigarette comprising a flavor releasing material-containing multi-segment filter, the thinly rolled cigarette having a low cigarette draw resistance and a high tar amount.
- the present inventors have found that even when a flavor releasing material is added to a filter of a thinly rolled cigarette, both a desired low cigarette draw resistance and a high tar amount can be achieved by using as a filter material an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m, leading to completion of the present invention.
- a cigarette according to claim 1 comprising:
- the filter is a multi-segment filter including a plurality of filter segments, and at least one of the filter segments contains an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- the present invention provides a thinly rolled cigarette comprising a flavor releasing material-containing filter, the thinly rolled cigarette having a desired low cigarette draw resistance and a high tar amount.
- the present invention provides a thinly rolled cigarette comprising a flavor releasing material-containing multi-segment filter, the thinly rolled cigarette having a desired low cigarette draw resistance and a high tar amount.
- FIG. 1 shows one example of a thinly rolled cigarette.
- an end of a tobacco rod 10 is cut off so that the inside of the tobacco rod 10 can be seen.
- the cigarette according to the present invention has a diameter of 3.0 to 6.0 mm, and is thinly rolled.
- the cigarette according to the present invention has a diameter of, for example, 4.5 mm or 5.4 mm.
- the cigarette according to the present invention has a structure similar to that of a usual filter-tipped cigarette except that the diameter is small. That is, the cigarette according to the present invention includes the tobacco rod 10 and a filter 20, and the tobacco rod 10 and the filter 20 are connected to each other by a tipping paper 30.
- the total length of the cigarette according to the present invention may be, for example, 80 to 100 mm.
- the tobacco rod 10 is formed of a tobacco filler 11 and a cigarette paper 12 wrapped around the periphery of the tobacco filler 11, as in a usual cigarette.
- the tobacco rod 10 has a diameter of 3.0 to 6.0 mm and may have a length of, for example, 50 to 75 mm.
- the cigarette paper 12 may have a thickness of 10 to 100 ⁇ m, and a paper having air permeability is generally used as the cigarette paper 12.
- the filter 20 is disposed at an end of the tobacco rod 10, and is formed of a filter member 21 and a filter wrapping paper 22 wrapped around the periphery of the filter member 21.
- the filter 20 has a diameter almost equal to that of the tobacco rod 10, and may have a length of, for example, 25 to 30 mm.
- the filter member 21 shown in FIG. 1 has a single filter structure, so called plain filter structure.
- the filter wrapping paper 22 which is integrally wrapped around the periphery of the filter member 21 may have a thickness of 10 to 100 ⁇ m, and may or may not have air permeability.
- the filter wrapping paper 22 has perforations 23 at the same positions as those of the perforations 31 of the tipping paper 30 so that the perforations 23 communicate with the perforations 31.
- the filter member 21 is constituted of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- the filter member 21 generally has a total denier of not less than 10000 g/9000 m and less than 15000 g/9000 m, and preferably has a total denier of 11000 g/9000 m to 13000 g/9000 m.
- the cross section of each of acetate filaments that form the acetate tow may have any shape, for example, a Y-shape or a circular shape, and a circular shape is preferred for reducing the filter draw resistance.
- the filter 20 contains a flavor releasing material 24.
- the flavor releasing material 24 contains a flavor component and a component for suppressing volatilization of the flavor component.
- the flavor releasing material 24 may be in the form of a capsule containing a flavor component.
- Such a flavor releasing material in the form of a capsule has a diameter size of several ten micrometers, and a large number of flavor releasing materials are dispersively contained in the filter member 21 (see FIG. 1 ) (see, for example, WO 2009/157240 ).
- the flavor releasing material in the form of a capsule has a diameter size of several millimeters, and one to several flavor releasing materials may be embedded in the filter member 21 (see, for example, WO 2011/024068 ), or may be contained in a cavity formed between two filter segments spaced apart from each other (see, for example, WO 2006/117697 ).
- the flavor releasing material 24 may be in the form of a thread (string) impregnated with a flavor component, and it is contained so as to pass through the center of the filter (see, for example, Jpn. Pat. Publication No. 63-38187 ).
- the flavor component contained in the flavor releasing material 24 may be any flavor component used in a cigarette, such as menthol.
- the flavor releasing material 24 can be added in an amount of 35 mg or more per cigarette, for example 35 to 235 mg per cigarette.
- the cigarette according to the present invention may further include an adsorbent such as activated carbon in the filter member 21.
- the tipping paper 30 is bonded by an adhesive so as to cover the whole of the filter wrapping paper 22 and a part of the cigarette paper 12.
- a portion of the tipping paper 30 which covers the filter wrapping paper 22, is called a "tipping paper of a filter portion".
- the tipping paper 30 may have a length (width) of 30 to 37 mm in an axis direction of the tobacco rod, and a thickness of 10 to 100 ⁇ m.
- the tipping paper has perforations 31 for letting air flow into the inside of the cigarette (filter member 21) from the outside during puffing.
- the perforations for air permeation have a function of letting air flow into the inside of the cigarette therefrom during puffing, and as a result, the air inflow quantity from the cigarette top is decreased to reduce the cigarette draw resistance.
- the perforations for air permeation are provided in a line along a circumferential direction of the cigarette in FIG. 1 , but may be provided in a plurality of lines along the circumferential direction of the cigarette, or a large number of perforations may be irregularly provided.
- the perforations 31 are formed so as to pierce the tipping paper of the filter portion and the filter wrapping paper 22.
- a total air quantity (Q) sucked out from a mouthpiece of the cigarette consists of an air quantity (Qt) flowing in from the cigarette top, an air quantity (Qp) flowing in by passing through the cigarette paper 12, and an air quantity (Qf) flowing in from perforations 31 of the tipping paper 30.
- a ratio (Vt) of the air quantity (Qt) flowing in from the cigarette top is represented by 100 ⁇ Qt/Q (%); a ratio (Vp) of the air quantity (Qp) flowing in by passing through the cigarette paper is represented by 100 ⁇ Qp/Q (%); and a ratio (Vf) of the air quantity (Qf) flowing in from the perforations of the tipping paper is represented by 100 ⁇ Qf/Q (%).
- the ratios of the air quantities (Vt, Vp and Vf) can be obtained by measuring the air quantities under standard smoking conditions in accordance with the ISO standard method using a cigarette quality measurement device (ISO 9512).
- the target tar amount in the cigarette according to the present invention is 8 mg or more.
- the ratio (Vf) of the air quantity flowing in from the perforations of the tipping paper to the total air quantity (Q) may be appropriately set for the purpose of achieving the target tar amount, and may be set to, for example, 10 to 60%, preferably 20 to 50%.
- the ratio (Vt) of the air quantity flowing in from the cigarette top to the total air quantity (Q) is generally 28 to 90%
- the ratio (Vp) of the air quantity flowing in by passing through the cigarette paper to the total air quantity (Q) is generally 0 to 12%.
- Vf value can be obtained by adjusting the size and number of perforations of the tipping paper by changing the power and pulse length of a laser perforator mounted in a cigarette production machine.
- the filter wrapping paper 22 has perforations 23 at the same positions as those of the perforations 31 of the tipping paper 30 so that the perforations 23 communicate with the perforations 31, as described above. Therefore, the perforations can be provided by making holes using the laser perforator so as to pierce not only the tipping paper but also the filter wrapping paper. Therefore, the air permeability of the filter wrapping paper does not matter.
- a paper having an air permeability of 5 to 100 CU, preferably 60 CU or less is used as a raw material of the cigarette paper 12.
- the cigarette paper 12 may contain a combustion regulator such as citrate in an amount of 1.0% by mass or less based on the mass of the cigarette paper.
- a low filter draw resistance preferably a filter draw resistance of 50 to 90 mmH 2 O
- a filter material an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m, even when a flavor releasing material is added to a filter. Consequently, even when the ratio (Vf) of the air quantity flowing in from perforations of the tipping paper to the total air quantity (Q) is not increased, a low cigarette draw resistance can be achieved, and a high tar value can be also obtained.
- the cigarette according to the present invention did not suffer deterioration in firmness of the filter portion of the cigarette as compared to the existing thinly rolled cigarettes including an acetate filter, although the acetate tow having the above-mentioned specific filament denier and total denier is used.
- the cigarette according to the present invention had no problem in the feeling of holding the cigarette in a mouth and the ease of handling under stress applied during smoking.
- a low cigarette draw resistance i.e., 150 mmH 2 O or less
- a high tar value i.e., 8 mg or more
- the "low cigarette draw resistance” means a draw resistance of 150 mmH 2 O, generally 100 to 150 mmH 2 O.
- the "high tar value” means a tar value of 8 mg or more, generally 8 to 13 mg.
- the "filter draw resistance” refers to a value measured in accordance with the ISO standard method (ISO 6565) using, for example, “Draw Resistance Meter A11” (manufactured by Burghart Company).
- the "cigarette draw resistance” refers to a value measured in accordance with the ISO standard method (ISO 6565) using, for example, “NCQA” (manufactured by JT Toshi Inc.).
- the "tar value” refers to a value measured in accordance with the ISO standard smoking conditions (ISO 3380 and ISO 3402).
- the filter may be a multi-segment filter including a plurality of filter segments, for example a dual filter or a triple filter.
- at least one of the filter segments (consisting of a filter material and a paper wrapped around the filter material) has a filter material formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- all the filter segments have a filter material formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- the filter is a dual-segment filter consisting of a first filter segment disposed on the tobacco filler side and a second filter segment disposed on the mouthpiece side.
- the first filter segment is an acetate tow filter containing an adsorbent (e.g., activated carbon), and the second filter segment is an acetate tow filter containing a large number of flavor releasing materials in the form of a capsule.
- the filter materials of the first and second filter segments are each formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- the cigarette can similarly have a low cigarette draw resistance (i.e., 150 mmH 2 O or less) and a high tar value (i.e., 8 mg or more) when an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m is used as a filter material of at least one filter segment.
- a low cigarette draw resistance i.e., 150 mmH 2 O or less
- a high tar value i.e., 8 mg or more
- the filter segment contains a flavor releasing material or an adsorbent
- the filter segment uses as a filter material an acetate tow having the above indicatede values.
- the filter may include another filter segment formed using a filter material other than the "acetate tow having a filament denier of : 10-13 g/9000 m and a total denier of less than 15000 g/9000 m".
- the filter may include another filter segment formed using a paper filter, a Neo filter made of a nonwoven sheet of natural pulp, or an acetate filter other than the above-mentioned acetate tow.
- a filter segment having a low draw resistance is preferably used as another filter segment. In the case of a filter paper and a Neo filter, one having a low draw resistance can be obtained by adjusting the width of the sheet, the basis weight of the sheet, the density of the sheet, and the like.
- the effects of the present invention i.e., a low cigarette draw resistance and a high tar amount
- a filter material an acetate tow having a filament denier of : 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
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- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Cigarettes, Filters, And Manufacturing Of Filters (AREA)
Description
- The present invention relates to a thinly rolled cigarette.
- As a thinly rolled cigarette, for example, a cigarette called "Superslim", which has a diameter of 5.4 mm, is on the market. A further thinner cigarette called "Microslim" is also known. These thinly rolled cigarettes have a specific problem resulting from their thinness. Namely, thinly rolled cigarette is apt to have an increased draw resistance of the cigarette because of its thinness. The cigarette draw resistance is correlated to the ease of smoking by a smoker, and a cigarette having an excessively high draw resistance is difficult to be smoked. It is generally said that the cigarette draw resistance is desired to be 80 to 150 mmH2O.
- Common practices for designing a cigarette having a desired low cigarette draw resistance include:
- (1) lowering the draw resistance of a filter;
- (2) lowering the draw resistance of a tobacco rod; and
- (3) increasing an air inflow quantity (Qf) from perforations of a tipping paper, and decreasing an air inflow quantity (Qt) from a cigarette top. The draw resistance of the filter can be reduced by changing production conditions of a filter production machine to decrease the filling amount of an acetate tow in a filter rod. However, when the filter rod is uniformly filled with the acetate tow, there is a limit on reduction of the filling amount of the acetate tow. Particularly in a thinly rolled cigarette having a diameter of 6.0 mm or less, it is difficult to suppress an increase in draw resistance, which results from the thinness of the cigarette, only by reduction of the filling amount of the acetate tow. Similarly, there is a limit on reduction of the draw resistance by decreasing the filling amount of a tobacco filler in the tobacco rod. For these reasons, in order to reduce the cigarette draw resistance, the air inflow quantity (Qf) from perforations of a tipping paper is increased, and the air inflow quantity (Qt) from a cigarette top is decreased. However, in this case, the amount of air supplied for combustion of cut tobacco decreases, leading to a decrease in amount of tar generated by combustion.
- Thus, in a thinly rolled cigarette which is apt to have an increased draw resistance of the cigarette, it has been difficult to achieve both a desired low cigarette draw resistance and a high tar amount. Actually, in commercially available cigarettes having a diameter of 5.4 mm, the air inflow quantity (Qf) from perforations of a tipping paper is increased in order to achieve a desired low cigarette draw resistance. Such cigarettes generally have a low tar amount of about 1 to 8 mg as compared to conventional-size cigarettes having a tar amount of about 1 to 20 mg. For example, Patent Document 1 discloses a thinly rolled cigarette (diameter: 5 to 7 mm) having a tar amount of 1 mg or less and including a dual-segment filter. Actually, the present inventors analyzed some commercial available thinly rolled cigarettes, but could not find a cigarette having a cigarette draw resistance of 150 mmH2O or less and a tar value of 8 mg or more in mainstream smoke.
- Further, it is known that when a flavor releasing material is added to a filter, the flavor releasing material dispersed in a filter material acts as a factor to boost the filter draw resistance depending on the added amount. Therefore, such a filter containing a flavor releasing material has a higher filter draw resistance as compared to a filter consisting of only a filter material. Thus, when a flavor releasing material is added to a filter of a thinly rolled cigarette, the filter draw resistance greatly increases.
- Further, it is known that when a multi-segment filter is employed in a cigarette, the multi-segment filter has a higher filter draw resistance as compared to a plain filter because the multi-segment filter has a plurality of segments. That is, the multi-segment filter has a larger amount of paper surrounding a filter material as compared to the plain filter, and therefore the filter material should have a smaller diameter. Thus, when a multi-segment filter is employed in a thinly rolled cigarette, the filter draw resistance greatly increases.
- As mentioned above, a flavor releasing material-containing filter and a multi-segment filter are apt to have an increased filter draw resistance. Therefore, in a thinly rolled cigarette including such a filter, it is further difficult to achieve both a desired low cigarette draw resistance and a high tar amount.
- The document
US 2011/0271968 discloses a cigarette according to the preamble of claim 1. -
- Patent Document 1: Jpn.
PCT National Publication No. 2001-520874 - Patent Document 2: International Publication No.
WO 2011/042175 - Patent Document 3:
GB Patent Application Publication No. 2091078 - Patent Document 4: International Publication No.
WO 93/08707 - Patent Document 5:
U.S. Patent No. 5058608 - Patent Document 6: Jpn.
PCT National Publication No. 2006-503572 - Patent Document 7:
U.S. Patent No. 4273141 - In view of the situations described above, an object of the present invention is to provide a thinly rolled cigarette comprising a flavor releasing material-containing filter, the thinly rolled cigarette having a low cigarette draw resistance and a high tar amount. Particularly, an object of the present invention is to provide a thinly rolled cigarette comprising a flavor releasing material-containing multi-segment filter, the thinly rolled cigarette having a low cigarette draw resistance and a high tar amount.
- The present inventors have found that even when a flavor releasing material is added to a filter of a thinly rolled cigarette, both a desired low cigarette draw resistance and a high tar amount can be achieved by using as a filter material an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m, leading to completion of the present invention.
- Specifically, according to the present invention, there is provided a cigarette according to claim 1 and comprising:
- a tobacco rod including a tobacco filler and a cigarette paper wrapped around a periphery of the tobacco filler; a filter including a filter member and a filter wrapping paper integrally wrapped around a periphery of the filter member; and a tipping paper bonded on the tobacco rod and the filter to connect the tobacco rod and the filter to each other, a perforation for letting air flow in during puffing being formed so as to pierce the tipping paper and the filter wrapping paper in the filter portion,
- wherein the cigarette has a diameter of 3.0 to 6.0 mm,
- the filter member contains an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m, and
- the filter contains 35 mg or more of a flavor releasing material.
- Particularly, according to the present invention, there is provided the above-mentioned cigarette, wherein the filter is a multi-segment filter including a plurality of filter segments, and at least one of the filter segments contains an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- The present invention provides a thinly rolled cigarette comprising a flavor releasing material-containing filter, the thinly rolled cigarette having a desired low cigarette draw resistance and a high tar amount. Particularly, the present invention provides a thinly rolled cigarette comprising a flavor releasing material-containing multi-segment filter, the thinly rolled cigarette having a desired low cigarette draw resistance and a high tar amount.
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FIG. 1 is an exploded perspective view showing one example of a cigarette according to the present invention. -
FIG. 2 is an explanatory view for explaining an air inflow in the cigarette according to the present invention. - The present invention will be explained below with reference to the drawings. The following explanations are intended to describe the present invention in detail, the scope of protection of the present invention being defined by the appended claims.
-
FIG. 1 shows one example of a thinly rolled cigarette. InFIG. 1 , an end of atobacco rod 10 is cut off so that the inside of thetobacco rod 10 can be seen. - The cigarette according to the present invention has a diameter of 3.0 to 6.0 mm, and is thinly rolled. The cigarette according to the present invention has a diameter of, for example, 4.5 mm or 5.4 mm. The cigarette according to the present invention has a structure similar to that of a usual filter-tipped cigarette except that the diameter is small. That is, the cigarette according to the present invention includes the
tobacco rod 10 and afilter 20, and thetobacco rod 10 and thefilter 20 are connected to each other by a tippingpaper 30. The total length of the cigarette according to the present invention may be, for example, 80 to 100 mm. - The
tobacco rod 10 is formed of atobacco filler 11 and acigarette paper 12 wrapped around the periphery of thetobacco filler 11, as in a usual cigarette. Thetobacco rod 10 has a diameter of 3.0 to 6.0 mm and may have a length of, for example, 50 to 75 mm. Thecigarette paper 12 may have a thickness of 10 to 100 µm, and a paper having air permeability is generally used as thecigarette paper 12. - The
filter 20 is disposed at an end of thetobacco rod 10, and is formed of afilter member 21 and afilter wrapping paper 22 wrapped around the periphery of thefilter member 21. Thefilter 20 has a diameter almost equal to that of thetobacco rod 10, and may have a length of, for example, 25 to 30 mm. Thefilter member 21 shown inFIG. 1 has a single filter structure, so called plain filter structure. Thefilter wrapping paper 22 which is integrally wrapped around the periphery of thefilter member 21 may have a thickness of 10 to 100 µm, and may or may not have air permeability. Thefilter wrapping paper 22 hasperforations 23 at the same positions as those of theperforations 31 of the tippingpaper 30 so that theperforations 23 communicate with theperforations 31. - The
filter member 21 is constituted of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m. Thefilter member 21 generally has a total denier of not less than 10000 g/9000 m and less than 15000 g/9000 m, and preferably has a total denier of 11000 g/9000 m to 13000 g/9000 m. The cross section of each of acetate filaments that form the acetate tow may have any shape, for example, a Y-shape or a circular shape, and a circular shape is preferred for reducing the filter draw resistance. - The
filter 20 contains aflavor releasing material 24. Theflavor releasing material 24 contains a flavor component and a component for suppressing volatilization of the flavor component. For example, theflavor releasing material 24 may be in the form of a capsule containing a flavor component. Such a flavor releasing material in the form of a capsule has a diameter size of several ten micrometers, and a large number of flavor releasing materials are dispersively contained in the filter member 21 (seeFIG. 1 ) (see, for example,WO 2009/157240 ). Alternatively, the flavor releasing material in the form of a capsule has a diameter size of several millimeters, and one to several flavor releasing materials may be embedded in the filter member 21 (see, for example,WO 2011/024068 ), or may be contained in a cavity formed between two filter segments spaced apart from each other (see, for example,WO 2006/117697 ). Alternatively, theflavor releasing material 24 may be in the form of a thread (string) impregnated with a flavor component, and it is contained so as to pass through the center of the filter (see, for example, Jpn. Pat. Publication No.63-38187 - The flavor component contained in the
flavor releasing material 24 may be any flavor component used in a cigarette, such as menthol. Theflavor releasing material 24 can be added in an amount of 35 mg or more per cigarette, for example 35 to 235 mg per cigarette. - The cigarette according to the present invention may further include an adsorbent such as activated carbon in the
filter member 21. - The tipping
paper 30 is bonded by an adhesive so as to cover the whole of thefilter wrapping paper 22 and a part of thecigarette paper 12. A portion of the tippingpaper 30 which covers thefilter wrapping paper 22, is called a "tipping paper of a filter portion". For example, the tippingpaper 30 may have a length (width) of 30 to 37 mm in an axis direction of the tobacco rod, and a thickness of 10 to 100 µm. As in a usual filter-tipped cigarette, the tipping paper hasperforations 31 for letting air flow into the inside of the cigarette (filter member 21) from the outside during puffing. The perforations for air permeation (ventilation holes) have a function of letting air flow into the inside of the cigarette therefrom during puffing, and as a result, the air inflow quantity from the cigarette top is decreased to reduce the cigarette draw resistance. The perforations for air permeation (ventilation holes) are provided in a line along a circumferential direction of the cigarette inFIG. 1 , but may be provided in a plurality of lines along the circumferential direction of the cigarette, or a large number of perforations may be irregularly provided. Theperforations 31 are formed so as to pierce the tipping paper of the filter portion and thefilter wrapping paper 22. - As shown in
FIG. 2 , in a usual cigarette, a total air quantity (Q) sucked out from a mouthpiece of the cigarette consists of an air quantity (Qt) flowing in from the cigarette top, an air quantity (Qp) flowing in by passing through thecigarette paper 12, and an air quantity (Qf) flowing in fromperforations 31 of the tippingpaper 30. A ratio (Vt) of the air quantity (Qt) flowing in from the cigarette top is represented by 100 × Qt/Q (%); a ratio (Vp) of the air quantity (Qp) flowing in by passing through the cigarette paper is represented by 100 × Qp/Q (%); and a ratio (Vf) of the air quantity (Qf) flowing in from the perforations of the tipping paper is represented by 100 × Qf/Q (%). The ratios of the air quantities (Vt, Vp and Vf) can be obtained by measuring the air quantities under standard smoking conditions in accordance with the ISO standard method using a cigarette quality measurement device (ISO 9512). - The target tar amount in the cigarette according to the present invention is 8 mg or more. When the above-mentioned acetate tow defined in the present invention is used in the filter, the ratio (Vf) of the air quantity flowing in from the perforations of the tipping paper to the total air quantity (Q) may be appropriately set for the purpose of achieving the target tar amount, and may be set to, for example, 10 to 60%, preferably 20 to 50%. In the cigarette according to the present invention, the ratio (Vt) of the air quantity flowing in from the cigarette top to the total air quantity (Q) is generally 28 to 90%, and the ratio (Vp) of the air quantity flowing in by passing through the cigarette paper to the total air quantity (Q) is generally 0 to 12%.
- The above-mentioned Vf value can be obtained by adjusting the size and number of perforations of the tipping paper by changing the power and pulse length of a laser perforator mounted in a cigarette production machine.
- In the present invention, the
filter wrapping paper 22 hasperforations 23 at the same positions as those of theperforations 31 of the tippingpaper 30 so that theperforations 23 communicate with theperforations 31, as described above. Therefore, the perforations can be provided by making holes using the laser perforator so as to pierce not only the tipping paper but also the filter wrapping paper. Therefore, the air permeability of the filter wrapping paper does not matter. - In order to obtain the above-mentioned Vp value, it is preferred that a paper having an air permeability of 5 to 100 CU, preferably 60 CU or less is used as a raw material of the
cigarette paper 12. Thecigarette paper 12 may contain a combustion regulator such as citrate in an amount of 1.0% by mass or less based on the mass of the cigarette paper. - Thus, in the cigarette according to the present invention, a low filter draw resistance, preferably a filter draw resistance of 50 to 90 mmH2O can be achieved by using as a filter material an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m, even when a flavor releasing material is added to a filter. Consequently, even when the ratio (Vf) of the air quantity flowing in from perforations of the tipping paper to the total air quantity (Q) is not increased, a low cigarette draw resistance can be achieved, and a high tar value can be also obtained. In addition, the cigarette according to the present invention did not suffer deterioration in firmness of the filter portion of the cigarette as compared to the existing thinly rolled cigarettes including an acetate filter, although the acetate tow having the above-mentioned specific filament denier and total denier is used. As a result, the cigarette according to the present invention had no problem in the feeling of holding the cigarette in a mouth and the ease of handling under stress applied during smoking. As described above, in the cigarette according to the present invention, a low cigarette draw resistance (i.e., 150 mmH2O or less) and a high tar value (i.e., 8 mg or more) can be achieved without deteriorating the firmness of the thinly rolled cigarette, even when a flavor releasing material is added to the filter. In the present invention, the "low cigarette draw resistance" means a draw resistance of 150 mmH2O, generally 100 to 150 mmH2O. In the present invention, the "high tar value" means a tar value of 8 mg or more, generally 8 to 13 mg.
- In the present invention, the "filter draw resistance" refers to a value measured in accordance with the ISO standard method (ISO 6565) using, for example, "Draw Resistance Meter A11" (manufactured by Burghart Company). The "cigarette draw resistance" refers to a value measured in accordance with the ISO standard method (ISO 6565) using, for example, "NCQA" (manufactured by JT Toshi Inc.). The "tar value" refers to a value measured in accordance with the ISO standard smoking conditions (ISO 3380 and ISO 3402).
- In the cigarette according to the present invention, the filter may be a multi-segment filter including a plurality of filter segments, for example a dual filter or a triple filter. In this case, at least one of the filter segments (consisting of a filter material and a paper wrapped around the filter material) has a filter material formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m. Preferably, all the filter segments have a filter material formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- For example, in the cigarette according to the present invention, the filter is a dual-segment filter consisting of a first filter segment disposed on the tobacco filler side and a second filter segment disposed on the mouthpiece side. The first filter segment is an acetate tow filter containing an adsorbent (e.g., activated carbon), and the second filter segment is an acetate tow filter containing a large number of flavor releasing materials in the form of a capsule. The filter materials of the first and second filter segments are each formed of an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
- Thus, in the case of employing a multi-segment filter in the cigarette according to the present invention, the cigarette can similarly have a low cigarette draw resistance (i.e., 150 mmH2O or less) and a high tar value (i.e., 8 mg or more) when an acetate tow having a filament denier of 10-13 g/9000 m and a total denier of less than 15000 g/9000 m is used as a filter material of at least one filter segment. When the filter segment contains a flavor releasing material or an adsorbent, according to the present invention the filter segment uses as a filter material an acetate tow having the above indicatede values.
- In the case of employing a multi-segment filter in the cigarette according to the present invention, the filter may include another filter segment formed using a filter material other than the "acetate tow having a filament denier of : 10-13 g/9000 m and a total denier of less than 15000 g/9000 m". For example, the filter may include another filter segment formed using a paper filter, a Neo filter made of a nonwoven sheet of natural pulp, or an acetate filter other than the above-mentioned acetate tow. A filter segment having a low draw resistance is preferably used as another filter segment. In the case of a filter paper and a Neo filter, one having a low draw resistance can be obtained by adjusting the width of the sheet, the basis weight of the sheet, the density of the sheet, and the like.
- Thus, in present invention, even when a flavor releasing material-containing filter, which is apt to cause an increase in cigarette draw resistance, is employed in a thinly rolled cigarette, the effects of the present invention (i.e., a low cigarette draw resistance and a high tar amount) can be exhibited by using as a filter material an acetate tow having a filament denier of : 10-13 g/9000 m and a total denier of less than 15000 g/9000 m.
-
- 10:
- tobacco rod
- 11:
- tobacco filler
- 12:
- cigarette paper
- 20:
- filter
- 21:
- filter member
- 22:
- filter wrapping paper
- 23:
- perforation
- 24:
- flavor releasing material
- 30:
- tipping paper
- 31:
- perforation
Claims (4)
- A cigarette comprising:a tobacco rod (10) including a tobacco filler (11) and a cigarette paper (12) wrapped around a periphery of the tobacco filler (11); a filter (20) including a filter member (21) and a tipping paper (30) bonded on the tobacco rod (10) and the filter (20) to connect the tobacco rod (10) and the filter (20) to each other, a perforation (23, 31) for letting air flow in during puffing being formed so as to pierce the tipping paper (30) in the filter portion, the filter (20) containing 35mg or more of a flavour releasing material (24), the cigarette being characterised in that the filter comprises a filter wrapping paper (22) integrally wrapped around the periphery of the filter member (21), and in that the perforation (23,31) pierces also the wrapping paper (22); and in that the cigarette has a diameter of 3.0 to 6.0 mm, and in that the filter member (21) contains an acetate tow having a filament denier of 10 g/9000 m to 13 g/9000 m and a total denier of less than 15000 g/9000 m.
- The cigarette according to claim 1, wherein the filter (20) is a multi-segment filter including a plurality of filter segments, and at least one of the filter segments contains an acetate tow having a filament denier of 10 g/9000 m to 13 g/9000 m and a total denier of less than 15000 g/9000 m.
- The cigarette according to claim 1, wherein the filter (20) is a dual-segment filter including a first filter segment disposed on the tobacco filler (11) side and a second filter segment disposed on the mouthpiece side, and at least one of the filter segments contains an acetate tow having a filament denier of 10 g/9000 m to 13 g/9000 m and a total denier of less than 15000 g/9000 m.
- The cigarette according to any one of claims 1 to 3, wherein a tar value in mainstream smoke is 8 mg or more, and a cigarette draw resistance is 150 mmH2O or less.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
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PCT/JP2012/082389 WO2014091605A1 (en) | 2012-12-13 | 2012-12-13 | Cigarette |
Publications (3)
Publication Number | Publication Date |
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EP2932860A1 EP2932860A1 (en) | 2015-10-21 |
EP2932860A4 EP2932860A4 (en) | 2016-07-20 |
EP2932860B1 true EP2932860B1 (en) | 2019-11-20 |
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ID=50933924
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EP12889824.4A Active EP2932860B1 (en) | 2012-12-13 | 2012-12-13 | Cigarette |
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EP (1) | EP2932860B1 (en) |
JP (1) | JP6368649B2 (en) |
KR (1) | KR101721346B1 (en) |
CN (1) | CN104853629B (en) |
RU (1) | RU2665672C2 (en) |
WO (1) | WO2014091605A1 (en) |
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CN112189888A (en) | 2013-03-28 | 2021-01-08 | 菲利普莫里斯生产公司 | Smoking article comprising a flavour delivery member |
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CN106690413B (en) * | 2016-11-08 | 2023-06-02 | 云南中烟工业有限责任公司 | Universal punching spherical filter stick fragrant bead wrapping device and cigarette filter stick prepared by same |
CN107348563A (en) * | 2017-07-24 | 2017-11-17 | 湖北中烟工业有限责任公司 | A kind of new cigarette |
GB201717569D0 (en) | 2017-10-25 | 2017-12-06 | British American Tobacco Investments Ltd | A filter for a smoking article or an aerosol generating product |
CN109497618A (en) * | 2018-11-14 | 2019-03-22 | 云南中烟工业有限责任公司 | A kind of cigarette heating the cigarette that do not burn for circumferential direction |
GB201908353D0 (en) * | 2019-06-11 | 2019-07-24 | Nicoventures Trading Ltd | A mouthpiece and an article for use in an aerosol provision system |
GB201908354D0 (en) * | 2019-06-11 | 2019-07-24 | Nicoventures Trading Ltd | A mouthpiece and an article for use in an aerosol provision system |
KR102623333B1 (en) * | 2021-06-21 | 2024-01-10 | 주식회사 케이티앤지 | Aerosol-generating article and aerosol-generating apparatus used with the same |
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- 2012-12-13 JP JP2014551807A patent/JP6368649B2/en active Active
- 2012-12-13 WO PCT/JP2012/082389 patent/WO2014091605A1/en active Application Filing
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CN104853629B (en) | 2018-12-07 |
RU2665672C2 (en) | 2018-09-03 |
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EP2932860A1 (en) | 2015-10-21 |
JP6368649B2 (en) | 2018-08-01 |
WO2014091605A1 (en) | 2014-06-19 |
KR20150065192A (en) | 2015-06-12 |
JPWO2014091605A1 (en) | 2017-01-05 |
RU2015127816A (en) | 2017-01-19 |
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CN104853629A (en) | 2015-08-19 |
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