WO2004091325A1

WO2004091325A1 - Cigarette of enhanced low fire spread

Info

Publication number: WO2004091325A1
Application number: PCT/JP2004/005254
Authority: WO
Inventors: Takaaki Matsufuji; Takeo Tsutsumi; Takashi Kominami; Keigo Miura; Ken Uyama
Original assignee: Japan Tobacco Inc.
Priority date: 2003-04-14
Filing date: 2004-04-13
Publication date: 2004-10-28
Also published as: CA2522289C; CN100571550C; TWI243652B; EP1623636A4; DK1623636T3; EP1623636A1; CA2522289A1; HK1090813A1; KR20050121717A; RU2005135130A; CN1774184A; JP4504921B2; DK1623636T4; EP1623636B2; RU2304913C2; PT1623636E; US20060027243A1; ES2371914T5; JPWO2004091325A1; UA83365C2

Abstract

A cigarette comprising a tobacco filler rod and a cigarette paper sheet provided round the rod. The cigarette paper sheet has an intrinsic air permeability of over 20 to 80 Coresta units and contains a filler in a ratio of 1.0 to 5.0 g/m2.

Description

Specification

Improved low fire spread cigarette

Technical field

The present invention relates to a low-burning cigarette that is difficult to spread from a fire to surroundings so that a ignited cigarette is unlikely to cause a fire due to the carelessness of a smoker.

Background art

If the cigarette falls to the floor, etc. due to the carelessness of the smoker, the width of the octopus wrapper should be reduced so that the fire does not spread to the floor, etc.

A cigarette provided with a self-extinguishing property by providing a cellulose paper node having a length of 2 to 20 mm (see Japanese Patent Application Laid-Open No. 63-8520000) and a cigarette roll A cigarette having a paper coated with a flame-retardant substance (see Japanese Patent Application Laid-Open No. 7-200795) has been proposed. Also, tapako wrapping paper to which non-combustible material is adhered is known. These technologies are based on the provision of a highly flammable area and a low flammability area on the cigarette paper. It is based on the knowledge that the power of s disappears.

It is also well known that reducing the burning rate of cigarettes for the purpose of reducing the amount of sidestream smoke per hour can provide cigarettes that extinguish and flicker. . As such a cigarette, the cigarette wrapping paper with a small amount of filling is used as the inner wrapping paper, and the normal cigarette wrapping paper is used as the outer wrapping paper, and the tapako is cut by these. A cigarette that has been proposed has been proposed (see Japanese Patent No. 2572248). Also, And a low sidestream smoke Shiga les Tsu bets, wound in卷紙to have a 1 0 0 ~ 2 6 O mg / smoking material packing density of cm ³ Rod 7 co-less data units following air permeability A cigarette that has been proposed has also been proposed (see Japanese Patent Publication No. 3001582). In addition, cigarettes having a low air permeability (7 cholester units), a low filler amount and a low basis weight to reduce the burning rate have been proposed (International Publication WO). 0 1/4 8 3 16).

However, in the case of using a wrapping paper having a non-combustible region, the non-combustible portion and the flammable rail portion are not uniformly burned when smoking. Also does not become constant. In addition, the method of lowering the burning rate and lowering the spread of fire was trying to achieve its purpose by reducing the degree of wrapping paper. Effect

If the amount of carbon monoxide (co) in the mainstream smoke increases, and the carbon monoxide / tar ratio (C / T ratio) increases, reducing the roll paper If you change the taste of cigarettes, you will have a problem if you feel uncomfortable with ordinary smokers o

On the other hand, cigarettes made from wrapping paper with a low filler content are known to have a reduced burning rate, but they disappear during the burning process. The power to reduce the amount of filler to a very low level

Therefore, according to the present invention, normal cigarettes and | pj-like smoking operation can be performed, the burning speed is almost the same as that of normal cigarettes, and the C / T ratio in mainstream smoke is improved. In particular, the aim is to provide cigarettes that can exhibit low fire spread. Disclosure of the invention

The present inventors have conducted research on low-fire spread cigarettes, and have found that special cigarettes composed of tobacco filler and cigarette wrapping paper require special bands and flame-retardant substances. Tapa without using

The above purpose can be achieved simply by setting the specific porosity of the cigarette wrapper on which the filler rod is wrapped and the amount of the family compounded in the wrapper to a specific value of 0. We found that the resulting cigarette could be produced. By setting the inherent density of the cigarette paper within the specified range, the amount of filler can be maintained within the range that maintains natural combustion.

-It will be as little as possible. The present invention is based on these findings.

That is, according to the present invention, there is provided a cigarette wrapping paper comprising a tapako filler material, a u-type rod, and a pulp and a filler, wherein the wrapping paper has 20 leister units. In addition, the filler has a specific air permeability of 80 or less, and the filler is 10 to 5.

Cigarettes containing 0 g / m ² are provided.

The cigarette of the present invention sustains spontaneous combustion, and when the cigarette is left on a substrate after being spontaneously combusted for a certain distance, the carbonized wire of the cigarette wrapping paper is formed before the cigarette stops burning. It can exhibit low fire spread such that the median value of the distance traveled along the cigarette axis direction is 8 mm or less.

According to one preferred aspect of the invention, there is provided a tobacco filler rod and a cigarette wrapper around which the rod is wound, wherein the wrapper has more than 20 cholester units, and has a co Resta following specific communication air permeability, filler and 1 4 ~ 3 7 g Z; in a proportion of m ^2,.. And a cigarette containing a combustion regulator in a ratio of 0 to 0.6% by weight and being filled with the tapaco filler at a packing density of 130 to 230 mg / cm3. .

BEST MODE FOR CARRYING OUT THE INVENTION

Hereinafter, the present invention will be described in more detail.

The cigarette of the present invention includes a cigarette filler rod and a cigarette paper roll on which the tapaco filler rod is wound. The cigarette of the present invention has the same appearance and shape as a normal cigarette.

The rod for rod filling used in the cigarette of the present invention is made of ordinary tobacco cuts or the like. Tobacco cuts can contain expanded or regenerated tobacco and bone. Packing density of the tobacco filling Zairo head is, 1 3 0 ~ 2 6 O mg / cm 3 in which this and is favored arbitrary. If the packing density deviates from this range, the fire spreadability may not be sufficiently reduced even when the cigarette wrapping paper of the present invention is used. The packing density of the tobacco filler is preferably in the range of 130 to 23 Omg / cm3, more preferably in the range of 140 to 230 mg / cm3. I like it. The step size of the tobacco cut is generally the same as the width of the tobacco cut normally used.However, from the viewpoint of low fire spread, a relatively large step size of 0.5 to 1.5 mm is preferable. A step size of 8 to 1.2 mm is more preferred.

The cigarette wrapping paper used in the present invention is based on pulp such as ordinary flax pulp, which is commonly used as a constituent of cigarette wrapping paper, and therefore contains pulp. I do. The specific air permeability of the cigarette paper used in the present invention (normal air permeability when not perforated) is more than 20 corester units (C.U.) and not more than 80 corester units. . When the specific permeability of the cigarette paper is less than 20 coresta units, the CZT ratio in the cigarette mainstream smoke generated during smoking increases. If the specific air permeability of cigarette paper exceeds 80 cholester units, the variation in air permeability increases. The inherent air permeability of the cigarette paper should be greater than 20 corestor units and less than or equal to 60 corester units, and should be between 25 and 55 corestor units. More preferred. The cigarette wrapping paper can be perforated mechanically or electrically by an ordinary method. There is no particular limitation on the air permeability of the wrapping paper having such openings.

The cigarette paper of the present invention contains a filler. As the filler, commonly used fillers such as carbonates such as calcium carbonate and calcium carbonate, and hydroxides such as calcium hydroxide and magnesium hydroxide can be used. You. Filler content in Shiga column DOO卷紙is 1. 0 ~ 5. 0 g / m 2. If the filling amount is less than 1.0 g / m ^{2, the} cigarette will be extinguished during natural combustion, and if the filling amount exceeds 5.0 g / m ² , the low spreadability of fire will occur. Is not achieved. The amount of filler is preferably between 1.4 and 3.7 g / m 2, more preferably between 1.6 and 3.3 g / m 2. The proportion of filler in the cigarette wrapping paper is preferably from 6 to 25% by weight, more preferably from 7 to 21% by weight, and from 8 to 17% by weight. % By weight is more preferable.

The basis weight of the Shiga-les-Tsu door卷紙is, that it is a 1 Ί ~ 2 8 g / m 2 Is preferred. When the grammage is less than 17 g / m ² , stable production of the wrapping paper is difficult, and when the grammage exceeds 28 g / m ² , the fire spreadability tends to increase. The basis weight of卷紙is, 1 8 ~ 2 5 g Z m consequent preferred are ^two in which this and Gayo, 1 8 ~ 2 2 g / m 2 and is this Togayo Ri preferred arbitrariness.

Cigarette paper may contain a combustion regulator such as cunic acid or a salt thereof (sodium salt, potassium salt), but the content is 0 to 1.0. Preferably, it is in weight percent. The amount of combustion regulator is 1.0 weight. When the temperature exceeds the limit, the C / T ratio tends to increase. More preferably, the amount of the combustion regulator is from 0 to 0.6% by weight, more preferably from 0.1 to 0.6% by weight.

The cigarette wrapping paper of the present invention has a tensile strength of 10 to 20 N / '15 mm or more. Even if it is supplied to a high-speed cigarette manufacturing machine that manufactures lett, cigarettes can be produced without any problem. The tensile strength can be adjusted by adjusting the degree of beating or the amount of pulp used for the cigarette paper. The higher the degree of beating of the pulp and the higher the amount of pulp per wrapper area, the higher the tensile strength.

In the present invention, by setting the specific air permeability of the cigarette paper and the proportion of the filler contained in the cigarette paper within the above ranges, the specific air permeability of the cigarette paper is relatively high. Nevertheless, a cigarette that has low flame spread and generates mainstream smoke with a low CT ratio can be obtained. In addition, the cigarette of the present invention And almost the same burning rate. The low spreadability of the cigarette of the present invention is based on the fact that the cigarette is left to stand on a base material (10 pieces of filter paper) after natural burning of the cigarette for a certain distance (according to the ASTME 2187-02b method). The median value of the distance that the carbonized wire of the cigarette paper moves along the cigarette axis before the cigarette stops burning is 8 mm or less, preferably 4 mm or less. It is like that. In a plurality of cigarettes of the present invention, the mode of the moving distance is 8 mm or less, preferably

It can be less than 4 mm.

Hereinafter, the present invention will be described with reference to Examples, but the present invention is not limited thereto.

Example Example Comparative Example

Using flax pulp cigarette wrapping paper having the specifications shown in Table 1, tapas were cut into n pieces so that the packing density shown in Table 1 was obtained, and 40 cigarettes were produced. Calcium carbonate was used as a filler, and sodium citrate V was used as a combustion regulator. As the tobacco cut, a yellow seed cut or a blend cut was used. Table 1 also shows the specific air permeability and tensile strength of cigarette wrapping paper. The tensile strength shown in Table 1 was measured using a tensile strength tester STROGRAPH E-S manufactured by Toyo Seiki Co., Ltd. in accordance with the method shown in Japanese Industrial Standards (JIS) P81131-1998. (Specimen size: 15.0 mm X about 250 mm, grip spacing: 180 ± 2 mm, pulling speed: 5 Om mZ minutes).

The spontaneous burning rate of the prepared cigarettes was measured by the usual method, and it was measured according to the ASTME 2187-02b method. The percent full length burn on 10 sheets of filter paper was measured. When the ignited cigarette is placed on the filter paper, the carbonized wire of the cigarette roll moves along the cigarette axis until the cigarette stops burning (extinguishes). The median value of the distance was measured. Table 2 shows the results.

In addition, the amount of total particulate matter (TPM), the amount of carbon monoxide, and the amount of carbon monoxide in mainstream tobacco smoke generated when each cigarette is burned are measured in a conventional manner. Then, the CT value was calculated. The number of puffs was also measured. Table 3 shows the results.

table 1

Cigarette Wrapping paper Tobacco wrapping Bow in wrapping paper One-strand bow plating Packing density Example No. Basis weight Combustion control agent Specific air permeability printing ^ ϋ

(mgZ (g / m ² ) (weight%) (CU) (mm;

(gZm ² ) 15 mm) cm ³ )

26 7.71.0 35 14 0.8 0.8 230

(Normal product 1)

Specific Fine 1-2-1 0.8

30 8. 7 0 10> 14 220

Ratio shelf 1-3-3-1 0.8

21 1.9 0 9 24 220 t 瞧 1—3—2 1.2

Separation 1-1-1-1 0.8

21 2. 4 0.2 34 17 220 Example 1-1-1-2 1.2

Example 1-2—1 0.8

21 3. 3 0.22 52 1 220 Example 1-2-2 2 1.2

t 麵 1 1 2

26 7.7 1.0 35 14 0.8 185 (Normal product part 2)

Example 1-1 1 3 21 2.40. 2 34 17 1. 2 185 Comparative translation !! 1 2—3 30 8. 7 0 10> 1 1. 0 140 Comparative translation 1 3—3 21 1. 9 0 9 24 1.0 140 Example 1-1-1-4 21 2.40.2 34 17 1.0 140 Example 1-2-2 3 21 3.3 0 0.2 52 14 1.0 140

Table 2

Cigarette physical properties

Example No. White swelling ¾ «Proceed before disappearing with natural

(mmZ min.) (mg min.) (%) Median value of Danda (mm) t 瞧 1

4. 5 45 100

(Normal product 1)

Hiyuan 1 1 2— 1 3. 2 32 30 4

Ratio 麵 1—2— 2 33 33 18 12

Ratio 麵 1 -3-1 Disappear 0 0

Ratio 3— 2 Disappearing 0—

Example 1 1 1 1 1 1 3.2 36 8 4

Example 1 1 1 1 1 2 2.9 34 0 5

Example 1-2-1 3.2 37 18 6

Example 1 -2-2 3.2 3F 18 5

t Cheom J 1-2

5.5 5 100

(Normal product 2)

Example 1-1—3 4. 1 38 10 6

Application 1 1 2— 3 4. 6 31 0 3

il one 3— 3 disappearing 0—

Example 1-1 1 4 1 0 27 0 3

Example 11-2 3 4 2 29 0 4

Table 3

As is clear from the results shown in Tables 2 and 3, cigarettes produced using the wrapping paper and the tobacco filler specified in the present invention exhibit excellent low fire spreadability and low C / T values.

As described above, according to the present invention, a smoking operation similar to that of a normal cigarette can be performed, the burning speed is almost unchanged, and the flame spread is low, and the C / T ratio in the generated mainstream smoke is improved. Small cigarettes are provided. Further, the cigarette of the present invention does not use a special flame retardant substance, so that it can exhibit a certain taste by ordinary smoking behavior.

Claims

The scope of the claims

1. A cigarette filler rod and a cigarette wrapping paper for winding the rod, wherein the wrapping paper has a specific air permeability of more than 20 cholester units and not more than 80 cholesters. Cigarettes containing 1.0 to 5.0 g / m ² of filler.

2. The cigarette according to claim 1, wherein the wrapping paper has a specific air permeability of more than 20 core units and not more than 60 core units.

3. The cigarette according to claim 1, wherein the wrapping paper has an inherent air permeability of 25 to 55 corester units.

4. The Shiga LESSON DOO卷紙is 1.4 to 3.7 Shiga Les Tsu City of claim 1 in proportion of g / m ² containing the filler.

5. The cigarette according to claim 1, wherein the cigarette wrapping paper contains the filler in a ratio of 1.6 to 3.3 g Zm2.

6. The cigarette according to claim 1, wherein the cigarette wrapping paper contains the filler at a ratio of 6 to 25% by weight.

7. The cigarette according to claim 1, wherein the cigarette wrapping paper contains the filler at a ratio of 7 to 21% by weight.

8. The cigarette according to claim 1, wherein the cigarette wrapping paper contains the filling at a ratio of 8 to 17% by weight.

9. The cigarette according to claim 1, wherein the cigarette wrapping paper has a basis weight of 17 to 28 gZm2.

10. The cigarette according to claim 1, wherein the cigarette paper has a basis weight of 18 to 25 g Zm2.

11. The cigarette according to claim 1, wherein the cigarette paper has a basis weight of 18 to 22 gZm2.

12. The cigarette according to claim 1, wherein the cigarette wrapping paper contains a combustion regulator in a ratio of 0.1 to 1.0% by weight.

13. The cigarette according to claim 1, wherein the cigarette wrapping paper contains a combustion regulator in a ratio of 0 to 0.6% by weight.

14. The cigarette according to claim 1, wherein the cigarette wrapping paper contains a combustion regulator in a ratio of from 0 :! to 0.6% by weight.

1 5. The tobacco filler, 1 3 0 ~ 2 6 0 mg Z cm 3 Shigare Tsu City of claim 1, which is filled with a filling density of.

1 6. The data bus co filler, 1 4 0 ~ 2 3 0 mg / cm 3 Shigare Tsu City of claim 1, which is filled with a filling density of.

17 · The cigarette according to claim 1, wherein the tobacco filler comprises tobacco cuts.

18. The cigarette according to claim 17, wherein the tobacco cut has a width of 0.5 to: 1.5 mm.

19. The cigarette according to claim 1, wherein the filling is selected from the group consisting of calcium carbonate, calcium carbonate, calcium hydroxide and magnesium hydroxide.

20. A tobacco filler rod and a cigarette wrapper for winding the rod, wherein the wrapper has a specific permeability of more than 20 cholester units and not more than 80 cholesters. The filler contains 1.4 to 3.7 g / m ^{2 at} a rate, and contains a combustion regulator at a rate of 0 to 0.6% by weight. 2 ³ 0 mg / cm 3 Shigare Tsu bets are filled with a filling density of.

2 1. The cigarette paper is perforated inherent air permeability of 2 5-5 5 co Resta units, said filler from 1.6 to 3. In a proportion of 3 g / m ^2, or 21. The method according to claim 20, wherein the tobacco filler is filled at a packing density of 140 to 230 mg / cm 3, wherein the tobacco filler is contained in a ratio of 0.1 to 0.6% by weight. The cigarette described.

2 2 .—The distance over which the carbonized wire of the cigarette wrapping paper moves along the cigarette axis until the cigarette stops burning when it is left standing on the substrate after natural combustion. 2. The cigarette according to claim 1, which has a low fire spreadability such that the median value is 8 mm or less.

2 3. —When left on a substrate after spontaneous combustion for a fixed distance, the carbonized wire of the cigarette paper moves along the cigarette axis until the cigarette stops burning. 22. The cigarette according to claim 20, which has a low fire spread property such that a median value of a distance is 8 mm or less.