JP3895329B2 - Cigarette with reduced sidestream smoke - Google Patents

Description

表１に記載された結果からわかるように、本発明のシガレットは、いずれも、単位時間当りの副流煙量と１本当たりの副流煙量が有意に低下している。特に、本発明のシガレットは、外側巻紙だけで巻装したシガレット（比較例１）と比べて、単位時間当りの副流煙量と１本当たりの副流煙量が顕著に低下している。また、本発明のシガレットと比較例３−１〜３−４のシガレットを比較すると、内側巻紙の炭酸カルシウム含有量を４重量未満とすることにより単位時間当りの副流煙量と１本当たりの副流煙量が顕著に低下することがわかる。また、本発明のシガレットは、いずれも、ほぼ６ｍｍ／分以上の燃焼速度を示し、単位時間当りの副流煙量と１本当たりの副流煙量が有意に低下していることがわかる。
以上、本発明の種々の態様を説明したが、本発明はそれらの態様に限定されるものではない。いうまでもなく、上記種々の形態は適宜組み合わせることができる。
本発明によれば、単位時間当りの副流煙量が少ないばかりでなく、１本当たりの副流煙量も少ないシガレットが提供される。TECHNICAL FIELD The present invention relates to a cigarette with a reduced amount of sidestream smoke, and more particularly to an inner wrapping paper and a cigarette wound with an outer wrapping paper.
Various techniques have been proposed to reduce sidestream smoke from cigarettes. For example, Japanese Patent No. 2572488 describes an inner wrapping paper having an air permeability of 1 to 5 cholesterol units and containing 1 to 8% by weight filler (for example, calcium carbonate), 35 to 65 g / A cigarette wound with an outer wrapping paper having a basis weight of m ² and containing 18-40% by weight filler (eg calcium carbonate) is disclosed. Japanese Patent Laid-Open No. 6-7142 discloses an inner wrapping paper containing a magnesium-containing filler and an outer wrapping paper containing an additive package made of alkali metal ions, alkaline earth metal ions, inorganic anions and organic anions. A worn cigarette is disclosed.
However, it has been found that all of the above conventional cigarettes have a problem that the burning speed is slow, and therefore the amount of sidestream smoke per unit time is small, but the amount of sidestream smoke per bottle is large.
Therefore, an object of the present invention is to provide a cigarette that not only has a small amount of sidestream smoke per unit time but also a small amount of sidestream smoke per unit.
DISCLOSURE OF THE INVENTION The present invention has achieved the above-mentioned object as a result of research on a wrapping paper itself around which cigarettes are wrapped, without using a filter or an improvement technique for tobacco fillers (such as tobacco cuts).
That is, according to the present invention, an inner wrapping paper having a calcium carbonate content of less than 4% by weight, an outer side containing calcium carbonate in an amount of 30 g / m ² or more and containing a combustion regulator in an amount of 3% by weight or more. A cigarette is provided that includes a tobacco portion that includes a tobacco filler rod wrapped with a wrapping paper.
BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described in more detail.
The cigarette of this invention is provided with the tobacco part containing the tobacco filler rod wound by the predetermined | prescribed inner wrapping paper and the predetermined | prescribed outer wrapping paper. A normal filter can be attached to one end of the tobacco portion.
Of the wrapping paper around which the tobacco filler rod of the present invention is wound, the inner wrapping paper has a calcium carbonate content of less than 4% by weight and substantially does not contain calcium carbonate. When the inner wrapping paper contains calcium carbonate in an amount of 4% by weight or more, the burning rate of the obtained cigarette becomes too fast, and the amount of sidestream smoke per unit time is not significantly reduced. The inner wrapping paper preferably does not contain calcium carbonate.
Any pulp can be used as the pulp constituting the inner wrapping paper as long as it is a pulp used in ordinary smoking article wrapping paper such as flax pulp. The pulp amount is preferably 10 to 18 g / m ² . If the amount of pulp is less than 10 g / m ² , stable production of the wrapping paper tends to be difficult, and if it exceeds 18 g / m ² , the taste of cigarette tends to be unpreferable.
The lower the air permeability of the inner wrapping paper, the lower the amount of sidestream smoke per hour of the obtained cigarette. The air permeability of the inner wrapping paper is preferably 1 to 30 coresta units (CU), and more preferably 6 CU to 30 CU.
The inner wrapping paper can contain a combustion modifier, but the amount is preferably up to 1% by weight (0-1% by weight). When the amount of the combustion modifier exceeds 1% by weight, the obtained cigarette tends to be unable to maintain a preferable burning rate of 6 mm / min or more as described below.
Combustion modifiers added to the inner wrapping paper are organic citrates such as sodium citrate, potassium citrate, sodium acetate, potassium acetate, sodium tartrate, potassium tartrate, sodium malate, potassium malate, sodium succinate, and potassium succinate. You can choose from alkali metal salts.
The outer wrapping paper used in the present invention contains calcium carbonate in an amount of 30 g / m ² or more and contains a combustion regulator in an amount of 3% by weight or more. When the amount of calcium carbonate is less than 30 g / m ² and / or when the proportion of the combustion regulator is less than 3% by weight, the effect of reducing the sidestream smoke amount is not sufficiently exhibited. Preferably, the calcium carbonate is blended in an amount of 30 g / m ² or more and 50 g / m ² or less, and the combustion modifier is blended in a ratio of 3 to 15% by weight in the wrapping paper.
The combustion modifier used for the outer wrapping paper is preferably an alkali metal citrate, and particularly preferably potassium citrate and sodium citrate, which can be used alone or in combination.
The pulp which comprises an outer wrapping paper can use the pulp similar to the pulp which comprises an inner wrapping paper. The amount of pulp is preferably 20-50 g / m ² .
The outer paper ^wrapper, preferably has a basis weight of ^{50g / m 2 ~100g / m 2} .
In the present invention, calcium carbonate is added in the form of particles, and the particle size can be appropriately selected from the viewpoint of cost and ease of papermaking, but is preferably 0.02 μm to 10 μm.
The cigarette having a cigarette portion that is wound twice by the inner wrapping paper and the outer wrapping paper of the present invention not only reduces the amount of sidestream smoke per unit time, but also reduces the amount of sidestream smoke per piece. The outer wrapping paper containing a relatively large amount of calcium carbonate is highly combustible, and when combined with the inner wrapping paper that does not substantially contain calcium carbonate, the burning rate is slower than that of the outer wrapping paper alone, As the amount of sidestream smoke per unit time decreases, the amount of sidestream smoke per bottle also decreases significantly. The burning rate of the cigarette of the present invention is preferably about 6 mm / min or more, and more preferably 7 mm / min or more. As described above, such a burning rate can be achieved by setting the content of the combustion regulator in the inner wrapping paper to 0 to 1% by weight. The burning rate of the cigarette of the present invention is usually up to about 12 mm / min. In addition, the burning rate of a cigarette can be measured by the normal fishtail method.
EXAMPLES Hereinafter, although an Example demonstrates this invention, this invention is not limited to them.
Examples 1-4, Comparative Examples 1-3
A cigarette having the following configuration was produced.
<Specifications of cigarette>
Size: FSK Slim (circumference 22.9 mm, tobacco part length 68 mm, filter length 30 mm, chip paper length 37 mm)
Tick: American blend, 0.565 g / book <Specifications of outer wrapping paper>
Pulp amount: 30 g / m ²
Calcium carbonate amount: 30 g / m ²
Citrate content: 4.5% by weight
<Specifications of inner wrapping paper>
As described in Table 1 below.
For each cigarette, the amount of sidestream smoke (whole particulate matter) is determined together with the combustion speed (combustion length 58 mm) by the fishtail method, the amount of sidestream smoke (mg / min) per unit time, and the sidestream per cigarette The amount of smoke (mg / tube) was calculated. The results are also shown in Table 1.

As can be seen from the results described in Table 1, in each of the cigarettes of the present invention, the amount of sidestream smoke per unit time and the amount of sidestream smoke per bottle are significantly reduced. In particular, in the cigarette of the present invention, the amount of sidestream smoke per unit time and the amount of sidestream smoke per unit time are significantly reduced as compared with a cigarette (Comparative Example 1) wound only by the outer wrapping paper. In addition, when the cigarette of the present invention and the cigarettes of Comparative Examples 3-1 to 3-4 are compared, the amount of sidestream smoke per unit time and per cigarette by making the calcium carbonate content of the inner wrapping paper less than 4 wt. It turns out that the amount of sidestream smoke falls notably. Moreover, all the cigarettes of this invention show a combustion speed of about 6 mm / min or more, and it turns out that the amount of sidestream smoke per unit time and the amount of sidestream smoke per one are falling significantly.
While various aspects of the present invention have been described above, the present invention is not limited to these aspects. Needless to say, the various forms described above can be combined as appropriate.
According to the present invention, a cigarette is provided that not only has a small amount of sidestream smoke per unit time but also a small amount of sidestream smoke per unit.

Claims (11)

Tobacco filling wrapped with an inner wrapping paper having a calcium carbonate content of less than 4% by weight and an outer wrapping containing calcium carbonate in an amount of 30 g / m ² or more and containing a combustion regulator in an amount of 3% by weight or more Cigarette provided with a tobacco part including a wood rod. The cigarette according to claim 1, wherein the inner wrapping paper contains pulp at a rate of 10 to 18 g / m ² . The cigarette according to claim 1, wherein the inner wrapping paper contains up to 1% by weight of a combustion regulator. The combustion modifier contained in the inner wrapping paper is a group consisting of sodium citrate, potassium citrate, sodium acetate, potassium acetate, sodium tartrate, potassium tartrate, sodium malate, potassium malate, sodium succinate and potassium succinate. The cigarette according to claim 3 selected from the inside. The cigarette according to claim 1, wherein the inner wrapping paper has an air permeability of 1 to 30 cholesterol units. The cigarette according to claim 1, wherein the outer wrapping paper contains up to 50 g / m ² of calcium carbonate. The cigarette according to claim 1, wherein the outer wrapping paper contains up to 15% by weight of a combustion modifier. The cigarette according to claim 1, wherein the combustion regulator contained in the outer wrapping paper is selected from the group consisting of potassium citrate and sodium citrate. The cigarette according to claim 1, wherein the outer wrapping paper contains pulp at a rate of ^{20 to} 50 g / m ² . The cigarette according to claim 1, wherein the outer wrapping paper has a basis weight of 50 to 100 g / m ² . The cigarette of Claim 1 which shows the combustion rate of 6 mm / min or more.