Cigarette

Inactive Publication Date: 2011-11-10
JAPAN TOBACCO INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

[0013]The metal carboxylate salt used in the present invention can selectively reduce benzo[a]pyrene in the cigarette mainstream smoke. Furthermore, since the metal carboxylate salt used in the present invention is generally more inexpensive than palladium, a cigarette that produces the mainstream smoke in which benzo[a]pyrene has been reduced can be provided more inexpensively.BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWING
[0014]The single FIGURE is an enlarged perspective view schematically illustrating a cigarette according to an embodiment of the present invention.

Problems solved by technology

However, since palladium is an expensive noble metal, like platinum and gold, it is disadvantageous in view of cost.
Thus, palladium is disadvantageous also in view of procurement.

Method used

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Examples

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examples

[0029]The present invention will now be explained in more detail with reference to Examples below.

examples 1 to 5

[0030]In these Examples, the alkali metal carboxylate salts shown in Table 1 were used as the metal carboxylate salt, and stemmed tobacco leaf shreds of flue-cured tobacco were used as the tobacco filler.

[0031]2.5 g of the alkali metal carboxylate salt shown in Table 1 was dissolved in 20 mL of ultrapure water, and the solution was sprayed on 50 g of stemmed tobacco leaf shreds of flue-cured tobacco. Thus, the alkali metal carboxylate salt was added to the stemmed tobacco leaf shreds in an amount of 5% of the weight of the stemmed tobacco leaf shreds. The stemmed tobacco leaf shreds to which the alkali metal carboxylate salt had been added was subjected to humidity conditioning in a conditioning room at a room temperature of 22° C. under a relative humidity of 60% for 48 hours or more. Using the stemmed tobacco leaf shreds after the humidity conditioning and a conventional cigarette paper, cigarette rods were prepared by hand work. The amount used of the tobacco shreds to which the ...

examples 6 to 10

[0033]In these Examples, the alkali metal carboxylate salts as shown in Table 2 were used as the metal carboxylate salt.

[0034]2.5 g of the alkali metal carboxylate salt as shown in Table 2 was dissolved in 20 mL of ultrapure water, and the solution was sprayed on 50 g of the stemmed tobacco leaf shreds of flue-cured tobacco. Thus, the metal carboxylate was added to the tobacco shreds in an amount of 5% of the weight of the stemmed tobacco leaf shreds. The tobacco shreds to which the alkali metal carboxylate salt had been added was subjected to humidity conditioning in a similar manner to that of Examples 1 to 5. Cigarettes were prepared in a similar manner to that of Examples 1 to 5, except that the tobacco shreds after this humidity conditioning were used.

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Abstract

A cigarette is provided with a tobacco rod including a tobacco filler. The tobacco filler includes stemmed tobacco leaf shreds, and also includes a metal carboxylate salt selected from a metal lactate salt, a metal tartarate salt, a metal succinate salt, a metal 3-hydroxybutyrate salt, a metal acetate salt and a metal formate salt in an amount of 0.5 to 6.0% by weight of the weight of the stemmed tobacco leaf shreds.

Description

CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a Continuation Application of PCT Application No. PCT / JP2010 / 050065, filed Jan. 6, 2010 and based upon and claiming the benefit of priority from prior Japanese Patent Application No. 2009-013594, filed Jan. 23, 2009, the entire contents of all of which are incorporated herein by reference.BACKGROUND OF THE INVENTION[0002]1. Field of the Invention[0003]The present invention relates to a cigarette wherein the amount of benzo[a]pyrene in the mainstream smoke produced during smoking is reduced.[0004]2. Description of the Related Art[0005]Benzo[a]pyrene in the mainstream smoke produced when smoking a cigarette is a material that is desired to be removed or reduced.[0006]Many techniques for reducing the amount of benzo[a]pyrene in the cigarette mainstream smoke have been reported. Among them, a technique of effecting a reduction by introducing an additive to tobacco shreds is one of a number of convenient and practicable tec...

Claims

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Application Information

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IPC IPC(8): A24B15/00
CPCA24B15/28A24B15/246
InventorUWANO, YOJIYOSHIDA, SHINYAYOSHIMURA, YUTA
OwnerJAPAN TOBACCO INC