WO2014091605A1

WO2014091605A1 - Cigarette

Info

Publication number: WO2014091605A1
Application number: PCT/JP2012/082389
Authority: WO
Inventors: 清弘笹川; 謙一板橋; 亮平泉
Original assignee: 日本たばこ産業株式会社
Priority date: 2012-12-13
Filing date: 2012-12-13
Publication date: 2014-06-19
Also published as: RU2665672C2; CN104853629A; RU2015127816A; EP2932860B1; CN104853629B; JP6368649B2; KR101721346B1; JPWO2014091605A1; KR20150065192A; EP2932860A4; EP2932860A1

Abstract

This cigarette comprises: a tobacco rod including a tobacco filling material, and a tobacco roll paper that is wrapped around the tobacco filling material; a filter including a filter material, and a wrapping paper that is wrapped around the filter material; and a tipping paper that is bonded onto the tobacco rod and the filter so as to connect the tobacco rod and the filter. Through holes for letting air flow in at the time of smoking are formed so as to penetrate the tipping paper in the filter section and the wrapping paper. The cigarette is characterized in that: the diameter thereof is from 3.0 to 6.0 mm; the filter material includes an acetate tow having a single fiber fineness that is greater than 8.0 g/9000 m and a total fiber fineness that is smaller than 15000 g/9000 m; and the filter includes greater than or equal to 35 mg of a flavor emitting material.

Description

cigarette

The present invention relates to a cigarette of a narrow winding size.

For example, a cigarette having a diameter of 5.4 mm called “super slim” is commercially available as a thin-rolled cigarette. A cigarette called “micro slim” which is thinner than this is also known. Such a thin-rolled cigarette has a particular problem due to its thinness. That is, a cigarette having a thin winding size tends to increase the ventilation resistance of the cigarette due to its thinness. The cigarette ventilation resistance correlates with the smoker's ease of sucking, and cigarettes with too high ventilation resistance are difficult to absorb, and it is generally said that the cigarette ventilation resistance is desirably 80 to 150 mmH ₂ O.

In order to design a cigarette with the desired low cigarette ventilation resistance,
(1) Lower the ventilation resistance of the filter,
(2) reducing the ventilation resistance of the tobacco rod, and
(3) Generally, increasing the air inflow amount (Qf) from the through hole of the chip paper to reduce the air inflow amount (Qt) from the tip of the cigarette is performed. The ventilation resistance of the filter can be lowered by changing the production conditions of the filter production machine to reduce the amount of acetate tow filled in the filter rod. There is a limit to reducing the amount of tow filling. In particular, in a thin cigarette having a diameter of 6.0 mm or less, it is difficult to suppress the increase in ventilation resistance due to the thinness only by reducing the filling amount of acetate tow. Similarly, there is a limit to reducing the airflow resistance by reducing the amount of tobacco filler filling the tobacco rod. Therefore, in order to reduce the cigarette ventilation resistance, the air inflow amount (Qf) from the through hole of the chip paper is increased to reduce the air inflow amount (Qt) from the tip of the cigarette. The amount of air supplied to the chopped combustion is reduced and the amount of tar produced by the combustion is reduced.

For this reason, it has been difficult to achieve both a desired low cigarette ventilation resistance and a high tar amount in a thin-winding cigarette in which the cigarette ventilation resistance tends to increase. In fact, commercially available cigarettes with a diameter of 5.4 mm increase the air inflow (Qf) from the through hole of the chip paper in order to achieve the desired low cigarette ventilation resistance, and the tar amount is generally 1-8 mg. The amount of tar is lower than that of conventional cigarettes of about 1 to 20 mg. For example, Patent Document 1 discloses a cigarette having a tar amount of 1 mg or less and a thin roll size (diameter 5 to 7 mm) provided with a dual segment filter. In fact, the present inventors analyzed several marketed products with a narrow winding size, but could not confirm cigarettes whose cigarette ventilation resistance was 150 mmH ₂ O or less and whose tar value in mainstream smoke was 8 mg or more. .

In addition, when a flavor release material is added to a filter, the flavor release material dispersed in the filter medium acts as a factor that increases the ventilation resistance of the filter according to the amount of addition, so the filter ventilation resistance is higher than that of a filter consisting only of the filter medium. It is known to rise. For this reason, when a flavor release material is added to a cigarette filter having a narrow winding size, the ventilation resistance of the filter is particularly increased.

Furthermore, when a multi-segment filter is adopted for a cigarette, it is known that the ventilation resistance of the filter is increased compared to a plain filter in that it has a plurality of segments. That is, since the multi-segment filter has more paper surrounding the filter medium than the plain filter, the filter medium needs to have a smaller diameter. For this reason, when a multi-segment filter is adopted for a cigarette of a narrow winding size, the ventilation resistance of the filter is particularly large.

In this way, the flavor release material-containing filter and the multi-segment filter tend to increase the filter ventilation resistance, and in the thin wound cigarette equipped with such a filter, it is possible to achieve both a desired low cigarette ventilation resistance and a high tar amount. It is even more difficult.

JP 2001-520874 A International Publication No. 2011/042175 Pamphlet UK Patent Application Publication No. 2091078 International Publication No. 93/08707 Pamphlet US Pat. No. 5,058,608 JP 2006-503572 A US Pat. No. 4,273,141

In view of the above circumstances, an object of the present invention is to provide a thin-rolled cigarette having a flavor release material-containing filter, and having a low cigarette ventilation resistance and a high tar amount. In particular, an object of the present invention is to provide a thin-wound cigarette having a flavor-releasing material-containing multi-segment filter and having a low cigarette ventilation resistance and a high tar amount.

The present inventors have a single fineness (Filament denier) of more than 8.0 g / 9000 m and a total fineness (Total denier of less than 15000 g / 9000 m) even when a flavor release material is added to a filter of cigarettes of a small roll size. It was found that the desired low cigarette ventilation resistance and a high amount of tar can be achieved by using acetate tow having) as a filter medium, and the present invention has been completed.

That is, according to the present invention,
Tobacco rod including cigarette filler and cigarette wrapping paper wound around the cigarette filler, filter member and filter including winding paper integrally wound around the filter member, cigarette rod and filter A cigarette rod and a chip paper bonded on the filter so as to connect, and a through-hole for allowing air to flow in when smoke is absorbed is formed so as to penetrate the chip paper and the web of the filter section. A cigarette
The cigarette has a diameter of 3.0 to 6.0 mm;
The filter member comprises acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m;
The cigarette characterized by the said filter containing 35 mg or more of flavor release materials is provided.

In particular, according to the present invention, the cigarette is a multi-segment filter including a plurality of filter segments, wherein at least one of the filter segments has a single fineness greater than 8.0 g / 9000 m and 15000 g / 9000 m. A cigarette is provided that includes acetate tow having a smaller total fineness.

According to the present invention, there is provided a thin-rolled cigarette having a flavor release material-containing filter, and having a desired low cigarette ventilation resistance and a high tar amount. In particular, according to the present invention, a thin-rolled cigarette having a flavor-releasing material-containing multi-segment filter, which has a desired low cigarette ventilation resistance and a high tar amount, is provided.

The disassembled perspective view which shows an example of the cigarette of this invention. Explanatory drawing for demonstrating the air inflow amount in the cigarette of this invention.

Hereinafter, the present invention will be described with reference to the drawings. However, the following description is intended to explain the present invention in detail and is not intended to limit the present invention.

FIG. 1 shows an example of a thin-rolled cigarette according to the present invention. In FIG. 1, one end of the tobacco rod 10 is cut off so that the inside of the tobacco rod 10 can be seen.

The cigarette of the present invention has a diameter of 3.0 to 6.0 mm and a thin winding size. The cigarette of the present invention has a diameter of, for example, 4.5 mm or 5.4 mm. The cigarette of the present invention has the same structure as a normal cigarette with a filter, except that it has a small diameter. That is, the cigarette of the present invention includes the tobacco rod 10 and the filter 20, and the tobacco rod 10 and the filter 20 are connected by the tip paper 30. The total length of the cigarette of the present invention can be set to, for example, 80 to 100 mm.

The cigarette rod 10 is composed of a cigarette filler 11 and a cigarette paper 12 wound around the cigarette filler 11 like a normal cigarette, has a diameter of 3.0 to 6.0 mm, and has a length of 50 to 75 mm, for example. Can have. The tobacco wrapping paper 12 can be 10 to 100 μm thick, and it is common to use paper having air permeability.

The filter 20 is disposed at one end of the tobacco rod 10 and includes a filter member 21 and a web 22 around which the filter member 21 is wound. The filter 20 has approximately the same diameter as the tobacco rod 10 and may have a length of, for example, 25-30 mm. The filter member 21 shown in FIG. 1 has a single so-called plain filter structure. The web 22 wound integrally around the filter member 21 can have a thickness of 10 to 100 μm, and it does not matter whether or not it has air permeability. The web 22 has a through hole 23 at the same position as the through hole 31 of the chip paper 30 so as to communicate with the through hole 31.

The filter member 21 is composed of acetate tow having a single fineness (Filament denier) larger than 8.0 g / 9000 m and a total fineness (Total denier) smaller than 15000 g / 9000 m. The acetate tow of the filter member 21 generally has a single fineness of greater than 8.0 g / 9000 m and 15 g / 9000 m or less, preferably 10 g / 9000 m to 13 g / 9000 m. The filter member 21 generally has a total fineness of 10000 g / 9000 m or more and less than 15000 g / 9000 m, preferably 11000 g / 9000 m to 13000 g / 9000 m. The cross section of the acetate fiber constituting the acetate tow can have an arbitrary shape, for example, a Y shape or a circular shape, and a circle is preferable for the purpose of reducing the ventilation resistance of the filter.

The filter 20 contains a flavor release material 24. The flavor release material 24 includes a flavor component and a component for making it difficult to volatilize the flavor component. For example, the flavor release material 24 can take the form in which a flavor component is incorporated into a capsule. The capsule-shaped flavor release material has a diameter size of several tens of micrometers, and a large number of flavor release materials are dispersed and contained in the filter member 21 (see FIG. 1) (for example, WO2009 / 157240 is included). reference). Alternatively, the capsule-shaped flavor release material may have a diameter size of several millimeters, and one to several flavor release materials may be embedded in the filter member 21 (see, for example, WO2011 / 024068). , And may be contained in a hollow portion between two filter segments that are spaced apart from each other (see, for example, WO 2006/117697). Alternatively, the flavor release material 24 may take the form of a thread impregnated with a flavor component, which is contained so as to penetrate the center of the filter (see, for example, Japanese Patent Publication No. Sho 63-38187). ).

Examples of the flavor component contained in the flavor release material 24 include any flavor component used in cigarettes such as menthol. The flavor release material 24 can be added in an amount of 35 mg or more per cigarette, for example, 35 to 235 mg.

The cigarette of the present invention may further include an adsorbent such as activated carbon in the filter member 21.

The chip paper 30 is bonded with an adhesive so as to cover the entire web 22 and a part of the cigarette paper 12. A portion of the chip paper 30 covering the winding paper 22 is referred to as “filter chip paper”. For example, the tip paper 30 may have a length (width) in the axial direction of the tobacco rod of 30 to 37 mm and a thickness of 10 to 100 μm. Similar to a normal cigarette with a filter, the chip paper has a through-hole 31 for allowing air to flow into the cigarette (filter member 21) from the outside during smoke absorption. This ventilation through hole (ventilation hole) has a function of allowing air to flow from here during smoking, reducing the amount of air flowing from the tip of the cigarette, and reducing the ventilation resistance of the cigarette. The through holes (ventilation holes) for ventilation are formed in one row along the circumferential direction of the cigarette in FIG. 1, but are formed in a plurality of rows along the circumferential direction of the cigarette. Alternatively, a large number of holes may be formed irregularly. The through hole 31 is formed so as to penetrate the chip paper and the web 22 of the filter portion.

As shown in FIG. 2, generally, in a cigarette, the total amount of air (Q) sucked out from the cigarette suction port is the amount of air flowing in from the cigarette tip (Qt) and the amount of air flowing in through the cigarette paper 12 (Qp). And the amount of air (Qf) flowing from the through hole 31 of the chip paper 30. The ratio (Vt) of the air amount (Qt) flowing in from the cigarette tip is expressed by 100 × Qt / Q (%); the ratio (Vp) of the air amount (Qp) flowing through the cigarette paper is 100 X Qp / Q (%); the ratio (Vf) of the amount of air (Qf) flowing from the through hole of the chip paper is represented by 100 x Qf / Q (%). These air ratios (Vt, Vp and Vf) can be determined by measuring under standard smoking conditions using a cigarette quality measuring instrument according to the ISO standard method (ISO9512).

The target tar amount of the cigarette of the present invention is 8 mg or more, but when the acetate tow used in the present invention is used for a filter, the ratio of the amount of air flowing from the through hole of the chip paper to the total air amount (Q) ( Vf) can be set as appropriate in order to achieve the target tar amount, for example, 10 to 60%, and preferably 20 to 50%. In the cigarette of the present invention, the ratio (Vt) of the air amount flowing from the tip of the cigarette to the total air amount (Q) is generally 28 to 90%, and the cigarette paper flows with respect to the total air amount (Q). The ratio of air volume (Vp) is generally 0-12%.

The above-mentioned Vf value can be obtained by adjusting the size and number of through-holes in the chip paper by changing the output and pulse length of the laser aperture device mounted on the cigarette manufacturing machine.

In the present invention, as described above, the web 22 has the through hole 23 so as to communicate with the through hole 31 at the same position as the through hole 31 of the chip paper 30. Therefore, these through holes can be formed by penetrating not only the chip paper but also the winding paper with a laser opening device. For this reason, the air permeability of the web is not critical.

In order to obtain the above-described Vp value, it is preferable to use a paper having an air permeability of 5 to 100 CU, preferably 60 CU or less as a raw material of the cigarette paper 12. Also, the tobacco wrapping paper 12 can contain a combustion regulator such as citrate in an amount of 1.0% by mass or less of the tobacco wrapping paper.

As described above, the cigarette of the present invention uses acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness smaller than 15000 g / 9000 m as a filter member even when a flavor release material is added to the filter. By doing so, a low filter ventilation resistance, preferably a filter ventilation resistance of 50-90 mmH ₂ O can be achieved. Thereby, low cigarette ventilation resistance can be achieved without increasing the ratio (Vf) of the amount of air flowing in from the through hole of the chip paper to the total amount of air (Q), and a high tar value can be obtained. . In addition, the cigarette of the present invention has a cigarette filter portion as compared with an existing thin-rolled cigarette equipped with an acetate filter, despite the use of acetate tow having the specific single fineness and total fineness described above. The strength of the bottle was not impaired, and there was no hindrance to handling when applying stress or stress during smoking. Thereby, the cigarette of the present invention has a low cigarette ventilation resistance (that is, 150 mmH ₂ O or less) and a high tar value without impairing the strength of the thin-rolled cigarette even when a flavor release material is added to the filter. (Ie 8 mg or more) can be achieved. In the present invention, the term "low cigarette pressure drop" is a 150mmH ₂ O or less, is generally a 100 ~ 150mmH ₂ 0. In the present invention, the “high tar value” is 8 mg or more, and generally 8 to 13 mg.

In the present invention, “filter ventilation resistance” refers to a value measured by using, for example, “ventilation resistance meter A11 (Burghart)” in accordance with ISO standard method (ISO6565), and “cigarette ventilation resistance” is ISO According to the standard method (ISO 6565), for example, the value measured using “NCQA (manufactured by JT Toshi Co., Ltd.)”. The “tar value” refers to a value measured in accordance with ISO standard smoking conditions (ISO 3380, ISO 3402).

In the cigarette of the present invention, the filter can 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 the filter medium and the material paper on which the filter medium is wound) has a filter medium made of acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m. Preferably, all of the filter segments have a filter medium consisting of acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m.

For example, in the cigarette of the present invention, the filter is a dual segment filter composed of a first filter segment disposed on the tobacco filler side and a second filter segment disposed on the suction port side. The filter segment is an acetate tow filter containing an adsorbent (eg, activated carbon), and the second filter segment is an acetate tow filter containing multiple flavor release materials in capsule form, the first and first The filter medium of the two filter segments consists of acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m.

As described above, when the multi-segment filter is employed in the cigarette of the present invention, acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness smaller than 15000 g / 9000 m is similarly used as the filter medium of at least one filter segment. As a result, the cigarette of the present invention can have a low cigarette ventilation resistance (ie, 150 mmH ₂ O or less) and a high tar value (ie, 8 mg or more). When the filter segment contains a flavor release material or an adsorbent, the filter segment preferably uses acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m as the filter medium.

When a multi-segment filter is employed in the cigarette of the present invention, the filter is made of another filter segment using a filter medium other than “acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness smaller than 15000 g / 9000 m”. For example, an acetate filter other than the above, a paper filter, or another filter segment using a neofilter using a nonwoven fabric sheet of natural pulp as a filter medium may be included. As these other filter segments, those having a low ventilation resistance are preferable. In the case of a paper filter or a neofilter, a sheet having a low ventilation resistance can be obtained by adjusting the sheet width, sheet basis weight, sheet density, and the like.

As described above, in the present invention, even when the configuration of the filter containing the flavor release material that easily increases the cigarette ventilation resistance is adopted for the thin-rolled cigarette, the single fineness greater than 8.0 g / 9000 m and By using acetate tow having a total fineness of less than 15000 g / 9000 m as a filter medium, the effects of the present invention (that is, low cigarette ventilation resistance and high tar amount) can be achieved.

DESCRIPTION OF SYMBOLS 10 ... Tobacco rod 11 ... Tobacco filler 12 ... Tobacco wrapping paper 20 ... Filter 21 ... Filter member 22 ... Winding paper 23 ... Through-hole 24 ... Flavor release material 30 ... ..Chip paper 31 ... through hole

Claims

Tobacco rod including cigarette filler and cigarette wrapping paper wound around the cigarette filler, filter member and filter including winding paper integrally wound around the filter member, cigarette rod and filter A cigarette rod and a chip paper bonded on the filter so as to connect, and a through-hole for allowing air to flow in when smoke is absorbed is formed so as to penetrate the chip paper and the web of the filter section. A cigarette
The cigarette has a diameter of 3.0 to 6.0 mm;
The filter member comprises acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m;
The cigarette characterized in that the filter contains 35 mg or more of a flavor release material.
The filter is a multi-segment filter including a plurality of filter segments, and at least one of the filter segments includes acetate tow having a single fineness greater than 8.0 g / 9000 m and a total fineness less than 15000 g / 9000 m. The cigarette according to claim 1.
The filter is a dual segment filter including a first filter segment disposed on the tobacco filler side and a second filter segment disposed on the suction side, wherein at least one of the filter segments is from 8.0 g / 9000 m The cigarette according to claim 1, comprising acetate tow having a large single fineness and a total fineness smaller than 15000 g / 9000 m.
The cigarette according to any one of claims 1 to 3, wherein the tar value in the mainstream smoke is 8 mg or more, and the ventilation resistance of the cigarette is 150 mmH 2 O or less.