TWI634847B - Method for producing shred tobacco for formulating smoking products - Google Patents

Abstract

The method for producing a tobacco yarn for blending a smoking article according to the present invention comprises: a reaction product selected from the group consisting of tobacco extract containing tobacco silk and tobacco silk, in a manner of obtaining a reaction mixture having a pH of 3.5 or less And reacting with a reaction substance selected from a solid acid catalyst having a sulfonic acid group and sulfuric acid to produce a reaction of a component contained in the tobacco yarn.

Description

 Method for producing tobacco yarn for smoking article preparation  

The present invention relates to a method of producing tobacco yarn for smoking article formulation.

When smoking articles such as cigarettes are smoked, they are generated from smoking articles: mainstream smoke smoked by smokers through the body of the smoking article, and sidestream smoke rising from the tip end of the smoking article, particularly during natural combustion. In the technical field, various techniques for reducing sidestream smoke have been reported. For example, Patent Document 1 reports the use of a cigarette of a two-layer roll paper.

 [Previous Technical Literature]    [Patent Literature]  

[Patent Document 1] International Publication No. 99/35923

In Patent Document 1, since the roll paper is two-layered and the inner roll paper is difficult to ventilate, when the cigarette is burned, heat is easily accumulated inside the roll paper, and it is difficult to release it to the outside, thereby facilitating the combustion portion. The temperature rises. As a result, the cigarette of Patent Document 1 tends to decrease in the burning speed and the number of cigarettes to be smoked (that is, the number of times the cigarette is required to become a specific length of the cigarette) is reduced as compared with a cigarette having a normal roll paper. Cigarette smoking allows smokers to relax and provide leisure time. Therefore, the number of cigarettes is one of the important cigarette properties for smokers.

Accordingly, it is an object of the present invention to provide a tobacco yarn which, when formulated in a smoking article, does not reduce the number of smoking, and which reduces sidestream smoke generated from smoking articles.

According to an aspect of the present invention, a method for producing a tobacco yarn for smoking article formulation comprises: selecting a reaction mixture having a pH of 3.5 or less, and selecting a component selected from the group consisting of tobacco silk containing ingredients The reaction object of the tobacco extract and the tobacco silk is mixed with a reaction-participating substance selected from the group consisting of a solid acid catalyst having a sulfonic acid group and sulfuric acid to produce a reaction of the components contained in the tobacco yarn.

According to another aspect, a tobacco yarn for smoking article preparation obtained by the aforementioned method is provided.

According to still another aspect, a smoking article comprising the tobacco yarn for dispensing the aforementioned smoking article is provided.

According to the present invention, it is possible to provide a tobacco yarn which, when formulated in a smoking article, can reduce the sidestream smoke generated from the smoking article while maintaining the number of times of smoking.

1‧‧‧Tobacco

2, 5c‧‧‧ water

3‧‧‧Tobacco extract

4‧‧‧ Extraction residue

5a‧‧‧Solid acid catalyst with sulfo group

5b‧‧‧sulfuric acid

6‧‧‧pH3.5 below reaction mixture

7‧‧‧Reaction mixture after reaction

8, 8b‧‧‧ tobacco extract after reaction

9‧‧‧Processing fluid

10‧‧‧Mixture

11‧‧‧Tobacco wire for smoking articles

Fig. 1 is a flow chart showing the method of the first embodiment.

Fig. 2 is a flow chart showing the method of the second embodiment.

Fig. 3 is a flow chart showing the method of the third embodiment.

Fig. 4 is a flow chart showing the method of the fourth embodiment.

 1. Method for manufacturing tobacco wire for smoking article preparation  

The method for producing a tobacco yarn for blending a smoking article of the present invention comprises: reacting a tobacco extract liquid and tobacco silk selected from the group consisting of tobacco silk containing a reaction mixture having a pH of 3.5 or less The object is mixed with a reaction-participating substance selected from a solid acid catalyst having a sulfonic acid group and sulfuric acid to cause a reaction of components contained in the tobacco yarn.

In the following description, the reaction object is a tobacco extract containing a component contained in tobacco silk, and the above-mentioned method in which the reaction-participating substance is a solid acid catalyst having a sulfonic acid group is referred to as a first embodiment; The tobacco extract containing the component, the reaction-involved substance is sulfuric acid, and the above-mentioned method is called the second embodiment; the reaction target is tobacco silk, and the reaction-involved substance is a solid acid catalyst having a sulfonic acid group. The above-mentioned method is called the third embodiment. The above-mentioned method in which the reaction target is tobacco silk and the reaction-participating substance is sulfuric acid is referred to as a fourth embodiment.

In the following, the embodiments are described in detail, but the following description is intended to describe the invention in detail and not to limit the invention.

 [First Embodiment]  

The first embodiment will be described with reference to Fig. 1 .

The method according to the first embodiment includes mixing a tobacco extract containing a component contained in tobacco silk with a solid acid catalyst having a sulfonic acid group so that a reaction mixture having a pH of 3.5 or less is obtained. The components contained in the tobacco yarn described above react.

Specifically, the method according to the first embodiment includes extracting a component contained in the tobacco yarn 1 with water 2 to produce a tobacco extract 3 containing the component and the water, and the tobacco after extracting the component a mixture of silk extraction residue 4; separating the tobacco extract 3 from the extraction residue 4; separating the tobacco extract 3 and having a sulfonic acid group in such a manner that a reaction mixture 6 having a pH of 3.5 or less can be obtained. The solid acid catalyst 5a is mixed to produce a reaction of the above components; the solid acid catalyst 5a is removed from the reaction mixture 7 after the reaction to obtain the tobacco extract 8 after the reaction; and the obtained tobacco extract 8 is concentrated. The water 2 is removed from the tobacco extract 8 to obtain a treatment liquid 9; the obtained treatment liquid 9 is mixed with the extraction residue 4 to obtain a mixture 10; and the mixture 10 is dried to produce a tobacco yarn 11 for smoking article preparation.

In the first embodiment, the tobacco yarn 1 is first exposed to the extraction step of water 2, and the components (hereinafter also referred to as tobacco components) contained in the tobacco yarn 1 are extracted with water 2. Thereby, the tobacco extract 3 containing the tobacco component and water, and the extraction residue 4 containing the extracted tobacco filament of the tobacco component are produced.

Tobacco silk 1 can be used to prepare tobacco yarn that is formulated into a smoking article. As the tobacco yarn 1, any of various varieties can be used, and for example, yellow species, bailey species, oriental species, and the like can be used. Tobacco silk 1 can be used in a single variety, or a mixture of different varieties can be used. The tobacco silk 1 system may contain regenerated tobacco consisting of bone leaves, medium bones, and the like (that is, the leaf chips, silk chips, medium bone chips, fine powder, etc. produced by the working steps of the factory are processed into Reusable shape of tobacco material) and the like. The so-called "tobacco wire blended with smoking articles" refers to the long-term ripening step in the drying process of the farmer, the one-year to several years in the raw material workshop, and the subsequent blending and cutting of the manufacturing workshop. Various processing treatments are prepared for the tobacco yarn to be blended in smoking articles. When the smoking article is a cigarette, "the whole is a tobacco yarn that is blended in a smoking article" is "prepared to be a tobacco yarn used in the cigarette rolling step".

The extraction system can be carried out by immersing the tobacco yarn 1 in water at 15 to 100 ° C for 0.5 to 2 hours. In the extraction, the tobacco yarn 1 can be used in an amount of, for example, 10% by mass based on the water 2 as the extraction solvent.

After the extraction, the tobacco extract 3 is separated from the extraction residue 4. The separation system can, for example, carry out the tobacco extract 3 from the extraction residue 4 using a separable screen.

The separated tobacco extract 3 is mixed with a solid acid catalyst 5a having a sulfonic acid group in such a manner as to obtain a reaction mixture 6 having a pH of 3.5 or less. Here, the solid acid catalyst 5a having a sulfonic acid group means a catalyst having a sulfonic acid group present on a solid surface and having a sulfonic acid group acting as a catalytic active site. The solid acid catalyst 5a having a sulfonic acid group preferably has a form of particles. 5a as a solid acid catalyst of a sulfonic acid group, may be used, for example TAYCACURE SAC-6 (TAYCA Co., Ltd., average particle diameter: 200μm, specific surface area: 450m ² / g). The solid acid catalyst 5a having a sulfonic acid group is added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 3.5 or less. The solid acid catalyst 5a having a sulfonic acid group is preferably added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 1.0 to 3.5. The solid acid catalyst 5a having a sulfonic acid group is more preferably added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 1.7 to 3.5, more preferably 1.7 to 2.5. For example, the solid acid catalyst 5a having a sulfonic acid group can be used in an amount of from 1 to 20% by mass based on the tobacco extract 3. As will be described later, when the pH of the prepared reaction mixture 6 exceeds 3.5, the tobacco yarn 11 produced by using the reaction mixture 6 cannot sufficiently reduce the sidestream smoke.

Further, in the present invention, the reaction mixture 6 is prepared to have a pH of 3.5 or less, but the reaction mixture 7 after the reaction does not necessarily have to have a pH of 3.5 or less.

The reaction of the tobacco mixture contained in the reaction mixture 6 can be produced by allowing the prepared reaction mixture 6 to stand for a specific period of time. The reaction can be carried out by allowing the reaction mixture 6 to stand at 15 to 40 ° C for 0.5 to 4 hours, or the reaction mixture 6 can be stirred at 15 to 40 ° C and allowed to stand for 0.5 to 4 hours. In this reaction, a polysaccharide, an amino acid or the like which is a component contained in the tobacco yarn is predicted to be subjected to dehydration condensation by a solid acid catalyst 5a having a sulfonic acid group.

The solid acid catalyst 5a is removed from the reaction mixture 7 after the reaction, and the tobacco extract 8 after the reaction is obtained. Removal of the solid acid catalyst 5a can be carried out, for example, by suction filtration.

Water 2 is removed from tobacco extract 8 by concentrating the resulting tobacco extract 8. The step of removing the water 2 by concentration can be carried out until the liquid amount of the tobacco extract 8 after the reaction becomes, for example, 1 to 1/1 of a degree. This step generally removes a large amount of water 2 from the tobacco extract 8, but does not remove the entire amount of water 2.

The tobacco extract (treatment liquid 9) from which water 2 is removed by concentration is mixed with the extraction residue 4 obtained in the extraction step. The treatment liquid 9 can be mixed with the extraction residue 4 in an amount of 40 to 100% by mass with respect to the treatment liquid 9. However, in this mixing step, the amount of the treatment liquid 9 is preferably not more than the amount of the treatment liquid 9 obtained from the obtained tobacco extract 3 at the same time as the extraction residue 4.

The resulting mixture 10 is dried to produce a tobacco yarn 11 for smoking article formulation. The drying system is such that the moisture content of the tobacco yarn is the same as that of the tobacco yarn generally used in smoking articles in the technical field. The drying system is generally carried out until the moisture content of the tobacco yarn 11 after drying is 6 to 14% by mass. For example, drying is carried out by allowing the mixture 10 to stand for 2 days under the conditions of a temperature of 20 to 25 ° C and a humidity of 60 to 70%.

 [Second Embodiment]  

The second embodiment will be described with reference to Fig. 2 . The description of the second embodiment is different from that of the first embodiment, and the point of repetition of the first embodiment is omitted.

The method according to the second embodiment includes mixing a tobacco extract containing a component contained in tobacco silk with sulfuric acid to obtain a reaction mixture having a pH of 3.5 or less, and reacting the components contained in the tobacco yarn. .

Specifically, the method according to the second embodiment includes extracting a component contained in the tobacco yarn 1 with water 2 to produce a tobacco extract 3 containing the component and the water, and the tobacco after the extraction of the component. a mixture of silk extraction residue 4; separating the tobacco extract 4 from the extraction residue 3; mixing the separated tobacco extract 3 with sulfuric acid 5b in such a manner that a reaction mixture 6 having a pH of 3.5 or less is obtained. The reaction of the above components is produced; the water mixture 2 is removed from the reaction mixture 7 by concentrating the reaction mixture 7 after the reaction to obtain a treatment liquid 9; and the obtained treatment liquid 9 is mixed with the extraction residue 4 to obtain a mixture 10; The aforementioned mixture 10 is dried to produce a tobacco yarn 11 for smoking article formulation.

Further, in this series of steps, the step of removing sulfate ions from the reaction mixture 7 after the reaction may be further included. The removal of the sulfate ion can be carried out, for example, by adding an anion exchange resin to the reaction mixture 7 after the reaction to sufficiently react it and removing the sulfate ion.

In the second embodiment, first, the tobacco extract 3 is obtained by the same method as in the first embodiment.

The obtained tobacco extract 3 was mixed with sulfuric acid 5b in such a manner as to obtain a reaction mixture 6 having a pH of 3.5 or less. The sulfuric acid 5b is added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 3.5 or less. The sulfuric acid 5b is preferably added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 1.0 to 3.5. More preferably, the sulfuric acid 5b is added to the tobacco extract 3 in an amount to obtain a reaction mixture 6 having a pH of 1.7 to 3.5, more preferably 1.7 to 2.5. The sulfuric acid 5b to be added can be used, for example, in a concentration of from 0.1 to 98% by mass. For example, the sulfuric acid 5b having a concentration of 21% by mass can be used in an amount of from 1 to 10% by mass based on the tobacco extract 3. As will be described later, when the pH of the prepared reaction mixture 6 exceeds 3.5, the tobacco yarn 11 produced by using the reaction mixture 6 cannot sufficiently reduce the sidestream smoke.

The reaction of the tobacco mixture contained in the reaction mixture 6 can be produced by allowing the prepared reaction mixture 6 to stand for a specific period of time. The reaction can be carried out by allowing the reaction mixture 6 to stand at 15 to 40 ° C for 0.5 to 4 hours, or the reaction mixture 6 can be stirred at 15 to 40 ° C and allowed to stand for 0.5 to 4 hours. In this reaction, a polysaccharide, an amino acid or the like which is a component contained in the tobacco yarn is predicted to be subjected to dehydration condensation by sulfuric acid 5b.

Water 2 is removed from the reaction mixture 7 by concentrating the reaction mixture 7 after the reaction. By the step of concentrating and removing the water 2, the amount of the liquid of the reaction mixture 7 after the reaction can be, for example, 1 to 1/1 of the range. This step generally removes a large amount of water 2 from the reaction mixture 7, but does not remove the entire amount of water 2.

The reaction mixture (treatment liquid 9) from which water 2 was removed by concentration was mixed with the extraction residue 4 obtained in the extraction step. The treatment liquid 9 can be mixed with the extraction residue 4 in an amount of 40 to 100% by mass with respect to the treatment liquid 9. However, in this mixing step, the amount of the treatment liquid 9 is preferably not more than the amount of the treatment liquid 9 obtained from the obtained tobacco extract 3 at the same time as the extraction residue 4.

The mixture 10 obtained by the same method as in the first embodiment is dried to produce a tobacco yarn 11 for smoking article preparation.

 [Third embodiment]  

The third embodiment will be described with reference to Fig. 3 . The description of the third embodiment is different from the first and second embodiments, and the points overlapping with the first and second embodiments are omitted.

The method according to the third embodiment includes mixing a tobacco yarn with a solid acid catalyst having a sulfonic acid group so as to obtain a reaction mixture having a pH of 3.5 or less, and reacting the components contained in the tobacco yarn. produce.

Specifically, the method according to the third embodiment includes mixing the tobacco yarn 1 with the solid acid catalyst 5a having a sulfonic acid group and water 5c so that the reaction mixture 6 having a pH of 3.5 or less can be obtained. The reaction of the components contained in the tobacco yarn 1 is generated; the solid acid catalyst 5a and the water 5c are removed from the reaction mixture 7 after the reaction to obtain the tobacco yarn 8b after the reaction; and the obtained tobacco yarn 8b is dried. Tobacco wire 11 for the manufacture of smoking articles.

In the same manner as in the first embodiment, the "tobacco yarn" used in the third embodiment can be used as a tobacco yarn to be blended in a smoking article.

In the third embodiment, first, the tobacco yarn 1 is mixed with a solid acid catalyst 5a having a sulfonic acid group and water 5c so as to obtain a reaction mixture liquid 6 having a pH of 3.5 or less. The solid acid catalyst 5a having a sulfonic acid group can be used in the first embodiment. The solid acid catalyst 5a having a sulfonic acid group and water 5c are mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of 3.5 or less. The solid acid catalyst 5a having a sulfonic acid group and water 5c are preferably mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of 1.0 to 3.5. The solid acid catalyst 5a having a sulfonic acid group and water 5c are more preferably mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of 1.7 to 3.5, more preferably 1.7 to 2.5. For example, the solid acid catalyst 5a having a sulfonic acid group can be used in an amount of from 1 to 20% by mass based on the tobacco yarn 1. As will be described later, when the pH of the prepared reaction mixture 6 exceeds 3.5, the tobacco yarn 11 produced by using the reaction mixture 6 cannot sufficiently reduce the sidestream smoke.

The reaction of the tobacco mixture contained in the tobacco yarn 1 can be produced by placing the prepared reaction mixture 6 for a specific period of time. The reaction can be carried out by allowing the reaction mixture 6 to stand at 15 to 40 ° C for 0.5 to 4 hours, or the reaction mixture 6 can be stirred at 15 to 40 ° C and allowed to stand for 0.5 to 4 hours. In this reaction, a polysaccharide, an amino acid or the like which is a component contained in the tobacco yarn is predicted to be subjected to dehydration condensation by a solid acid catalyst 5a having a sulfonic acid group.

The solid acid catalyst 5a and the water 5c are removed from the reaction mixture 7 after the reaction to obtain the tobacco yarn 8b after the reaction. The removal of the solid acid catalyst 5a and the water 5c can be carried out, for example, by using the separable screen from the solid acid catalyst 5a and the water 5c after the reaction. The water 5c removed here may contain the components contained in the tobacco yarn 1.

The obtained tobacco yarn 8b is dried in the same manner as in the first embodiment to produce a tobacco yarn 11 for smoking article preparation.

 [Fourth embodiment]  

The fourth embodiment will be described with reference to Fig. 4 . The description of the fourth embodiment is different from the first to third embodiments, and the points overlapping with the first to third embodiments are omitted.

The method according to the fourth embodiment includes a method of mixing a tobacco yarn with sulfuric acid so as to obtain a reaction mixture having a pH of 3.5 or less, and generating a reaction of a component contained in the tobacco yarn.

Specifically, in the method of the fourth embodiment, the tobacco yarn 1 and the sulfuric acid 5b are mixed so that the reaction mixture 6 having a pH of 3.5 or less is obtained, and the reaction of the component contained in the tobacco yarn 1 is produced. The reaction mixture 7 after the reaction is separated from the tobacco silk 8b and the sulfuric acid 5b after the reaction; the obtained tobacco yarn 8b is dried to prepare a tobacco yarn 11 for smoking article preparation.

Further, in this series of steps, the step of removing sulfate ions from the reaction mixture 7 after the reaction may be further included.

In the fourth embodiment, first, the tobacco yarn 1 and the sulfuric acid 5b are mixed so as to obtain the reaction mixture 6 having a pH of 3.5 or less. The sulfuric acid 5b system can be used, for example, having a concentration of 0.1 to 98% by mass. The sulfuric acid 5b is mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of 3.5 or less. The sulfuric acid 5b is preferably mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of 1.0 to 3.5. More preferably, the sulfuric acid 5b is mixed with the tobacco yarn 1 in an amount to obtain a reaction mixture 6 having a pH of from 1.7 to 3.5, more preferably from 1.7 to 2.5. For example, with respect to the tobacco yarn 1, the sulfuric acid 5b having a concentration of 0.1 to 98% by mass may be used in an amount of 1 to 20% by mass. As will be described later, when the pH of the prepared reaction mixture 6 exceeds 3.5, the tobacco yarn 11 produced by using the reaction mixture 6 cannot sufficiently reduce the sidestream smoke.

The reaction of the tobacco mixture contained in the tobacco yarn 1 can be produced by placing the prepared reaction mixture 6 for a specific period of time. The reaction can be carried out by allowing the reaction mixture 6 to stand at 15 to 40 ° C for 0.5 to 4 hours, or the reaction mixture 6 can be stirred at 15 to 40 ° C and allowed to stand for 0.5 to 4 hours. It is predicted that in this reaction, the polysaccharide, the amino acid or the like of the component containing the tobacco filament is dehydrated and condensed by the sulfuric acid 5b.

The reaction mixture 7 after the reaction was separated into a tobacco silk 8b (solid portion) and a sulfuric acid 5b (liquid portion) after the reaction. This separation is carried out, for example, by using the tobacco wire 8b (solid portion) after the reaction from the sulfuric acid 5b (liquid portion) using a separable sieve.

Sulfate ions may also be removed from the reaction mixture 7 after the reaction before the separation. The removal of the sulfate ion is carried out, for example, by adding an anion exchange resin to the reaction mixture 7 after the reaction to sufficiently react the sulfate ion. The sulfate ion removed here may contain a component contained in the tobacco yarn 1.

The obtained tobacco yarn 8b is dried in the same manner as in the first embodiment to produce a tobacco yarn 11 for smoking article preparation.

 2. Tobacco wire for smoking articles  

In general, the tobacco yarn for smoking articles of the present invention is characterized in that the carbon content in the tobacco yarn is less than 0.50, and the tobacco yarn is heated for 10 minutes in a nitrogen atmosphere at 500 ° C, and then cooled, and The proportion of carbon contained in the carbide (hereinafter also referred to as "the proportion of carbon in the carbide") obtained by maintaining at 22 ° C for 0.5 hour is 0.50 or more.

In a preferred aspect, the tobacco yarn for blending smoking articles of the present invention is characterized in that the "carbon content in the tobacco yarn" is 0.30 or more, less than 0.50, and the "carbon content in the carbide" is 0.50 or more. It did not reach 0.58.

On the other hand, the usual tobacco yarn is generally characterized in that the tobacco yarn has a carbon content of 0.30 or more and less than 0.50, and the tobacco yarn is heated for 10 minutes at 500 ° C in a nitrogen atmosphere, followed by cooling, and The carbon content ("carbon content in the carbide") of the carbide obtained at 22 ° C for 0.5 hours was 0.40 or more and less than 0.50. In the present specification, "normal tobacco yarn" means a tobacco yarn used as a starting material for the method of the present invention, that is, tobacco yarn which is not treated by the method of the present invention.

Therefore, in general, the tobacco yarn for smoking article formulation of the present invention is characterized by having the same degree of "carbon content in tobacco silk" as the usual tobacco yarn, and having more carbides than those obtained from ordinary tobacco yarn. High "carbon content in carbides".

The "carbon content ratio" is considered to be an indicator of the degree of non-flammability. Further, the heating temperature at 500 ° C used for obtaining the carbide is almost the same as the combustion temperature of the cigarette at the time of natural combustion. Therefore, a higher "carbon content in the carbide" means that the tobacco filament is not easily burned when it is naturally burned.

As can be seen from the above, the tobacco fiber has a carbon content of less than 0.50 and a carbon content of the carbide of 0.50 or more, which means that the tobacco yarn is not easily burned when it is naturally burned, and the amount of sidestream smoke generated by the smoking article is small.

The "carbon content in tobacco silk" and "carbon content in carbide" can be measured using an elemental analyzer. For example, the measurement can be carried out using an elemental analysis device SUMIGRAPH NCH-22F (manufactured by Sumitomo Chemical Co., Ltd.).

The "carbon content ratio" can be specifically measured as follows. The tobacco silk or carbide was stored in a blending environment (22 ° C, 60% relative humidity) for more than 24 hours, weighed 0.01 g of tobacco silk or carbide, heated to 800 ° C in an oxidizing environment, and analyzed by an elemental analysis device. The product is burned and the elemental composition is determined. Crystalline cellulose was used as a reference group for carbon and hydrogen. By using the reference group, the carbon ratio of the combustion product can be directly determined.

 3. Smoking items  

The tobacco yarn for smoking article formulation of the present invention can be used for any smoking article, generally a smoking type smoking article such as a cigarette, a pipe, a cigarette bag, a rolled leaf, a cigar or the like.

The blending ratio is not limited, but the tobacco yarn for the distribution of the smoking articles of the present invention may be formulated in such a manner that the total amount of tobacco (hereinafter referred to as tobacco filler) contained in the smoking article is 100% by mass. One portion of the tobacco filling material is formulated in a manner such as 50 to 75% by mass of the tobacco filling material.

In the former case, the tobacco filling material is extremely difficult to burn when naturally burned, and the sidestream smoke is remarkably reduced. However, in this case, the tobacco filling material is also difficult to burn when the smoking is burned, and as a result, the number of times of smoking is increased more than the usual amount of tobacco. On the other hand, in the latter case, since the tobacco yarn for smoking articles of the present invention is mixed with the usual tobacco yarn, it is possible to have the tobacco filler material hard to burn when it is naturally burned, and to reduce the effect of the sidestream smoke, and to ensure that it can be It has the same burning effect as a normal tobacco filament when it is burned.

As apparent from the above, the smoking article of the present invention can exhibit an effect of not reducing the number of times of smoking and reducing the sidestream smoke generated from the smoking article.

 4. Preferred embodiment  

As described above, the method according to the first embodiment includes mixing a tobacco extract containing a tobacco silk-containing component and a solid acid catalyst having a sulfonic acid group so that a reaction mixture having a pH of 3.5 or less can be obtained. The reaction of the components contained in the tobacco yarn described above is produced.

Specifically, the method according to the first embodiment includes extracting a component contained in the tobacco yarn 1 with water 2, and producing a tobacco extract 3 containing the component and the water, and the tobacco yarn containing the component after extraction. a mixture of the extraction residue 4; separating the tobacco extract 3 from the extraction residue 4; and separating the tobacco extract 3 and the solid having a sulfonic acid group in such a manner that a reaction mixture 6 having a pH of 3.5 or less can be obtained. The acid catalyst 5a is mixed to produce a reaction of the above components; the solid acid catalyst 5a is removed from the reaction mixture 7 after the reaction to obtain the tobacco extract 8 after the reaction; and the obtained tobacco extract 8 is concentrated by using Water 2 is removed from the tobacco extract 8 to obtain a treatment liquid 9; the obtained treatment liquid 9 is mixed with the above-mentioned extraction residue 4 to obtain a mixture 10; and the above mixture 10 is dried to produce a tobacco yarn 11 for smoking article preparation.

Further, as described above, the method according to the second embodiment includes: mixing a tobacco extract containing a component containing tobacco silk and sulfuric acid so as to obtain a reaction mixture having a pH of 3.5 or less, and mixing the tobacco yarn The reaction of the ingredients is produced.

Specifically, the method according to the second embodiment includes extracting the component contained in the tobacco yarn 1 with water 2, and producing the tobacco extract 3 containing the component and the water, and the tobacco yarn containing the component after extraction. a mixture of the extraction residue 4; separating the tobacco extract 4 from the extraction residue 3; mixing the separated tobacco extract 3 with sulfuric acid 5b so as to obtain a reaction mixture 6 having a pH of 3.5 or less. The reaction of the above components is produced; the water mixture 2 is removed from the reaction mixture 7 by concentrating the reaction mixture 7 after the reaction to obtain a treatment liquid 9; and the obtained treatment liquid 9 is mixed with the extraction residue 4 to obtain a mixture 10; The mixture 10 is dried to produce a tobacco yarn 11 for smoking article preparation.

Further, as described above, the method according to the third embodiment includes mixing the tobacco yarn with a solid acid catalyst having a sulfonic acid group so as to obtain a reaction mixture having a pH of 3.5 or less, and the tobacco yarn is contained. The reaction of the components is produced.

Specifically, the method according to the third embodiment includes mixing the tobacco yarn 1 with the solid acid catalyst 5a having a sulfonic acid group and water 5c so that the reaction mixture 6 having a pH of 3.5 or less can be obtained. The reaction of the components contained in the tobacco yarn 1 is generated; the solid acid catalyst 5a and the water 5c are removed from the reaction mixture 7 after the reaction to obtain the tobacco yarn 8b after the reaction; and the obtained tobacco yarn 8b is dried to produce a smoking article. The tobacco yarn 11 is blended.

Further, as described above, the method according to the fourth embodiment includes mixing the tobacco yarn with sulfuric acid so as to obtain a reaction mixture having a pH of 3.5 or less, and generating a reaction of the components contained in the tobacco yarn.

Specifically, in the method of the fourth embodiment, the tobacco yarn 1 and the sulfuric acid 5b are mixed so that the reaction mixture 6 having a pH of 3.5 or less is obtained, and the reaction of the component contained in the tobacco yarn 1 is produced. The reacted tobacco mixture 8b and the sulfuric acid 5b are separated from the reaction mixture 7 after the reaction; the obtained tobacco yarn 8b is dried to prepare a tobacco yarn 11 for smoking article preparation.

According to a preferred embodiment, in any one of the first to fourth embodiments, the reaction mixture has a pH of 1.0 to 3.5, preferably a pH of 1.7 to 3.5, more preferably 1.7 to 2.5. pH.

According to another preferred embodiment, in any one of the first to fourth embodiments and the preferred embodiment described above, the step of reacting the components contained in the tobacco yarn is carried out by subjecting the reaction mixture to It is allowed to stand at 15 to 40 ° C for 0.5 to 4 hours.

According to another preferred embodiment, in any one of the first and third embodiments and the preferred embodiment, the solid acid catalyst is a particle having a sulfonic acid group on the surface of the carrier particle.

According to another preferred embodiment, in any one of the first to fourth embodiments and the preferred embodiment described above, the step of drying the tobacco yarn is performed until the moisture content of the tobacco yarn after drying is changed 6 to 14% by mass.

According to another preferred embodiment, in any one of the first to fourth embodiments and the preferred embodiment, the tobacco yarn is prepared as a tobacco yarn blended in a smoking article, specifically, including : Tobacco formulated in smoking articles in the drying step of the farmhouse, the long-term ripening step in the raw material factory for one year or even years, and the subsequent processing steps of blending and cutting in the manufacturing plant. wire.

According to another preferred embodiment, in any one of the first and second embodiments and the preferred embodiment described above, the step of extracting the component contained in the tobacco yarn with water is performed by using the tobacco yarn as described above. It is immersed in water of 100 ° C for 0.5 to 2 hours.

According to another preferred embodiment, in any one of the second and fourth embodiments and the preferred embodiment, the method further comprises the step of removing sulfate ions from the reaction mixture after the reaction.

 [Examples]    [1] Modulation of Tobacco Filament for Cigarette Blending    Example 1-1  

25 g of tobacco silk (3R4F reference cigarette) having a water content adjusted to 12% by mass was immersed in 250 mL of hot water (60 ° C) for 2 hours to extract a component (tobacco component) contained in the tobacco yarn. Thereafter, a sieve having a mesh size of 0.15 mm was used, and the sieved tobacco extract and the residue remaining on the sieve were separated.

40 g of a solid acid catalyst (TAYCACURE SAC-6, manufactured by TAYCA Co., Ltd.) having a sulfonic acid group was added to 250 mL of the obtained tobacco extract to obtain a reaction mixture of pH 1.7. A tabletop pH meter F-72 (manufactured by HORIBA) was used as a pH meter. The resulting reaction mixture was allowed to stand at 22 ° C for 4 hours to produce a reaction of the tobacco component. The reaction mixture after the reaction was filtered by suction with a filter paper (Advantech No. 4) to remove a solid acid catalyst from the reaction mixture.

The obtained liquid (the tobacco extract after the reaction) was concentrated to a total amount of about 12.5 g using an evaporator to remove the extraction solvent (water). 12.5 g of the obtained treatment liquid was added to 12.5 g of the extraction residue. The obtained mixture was dried in a room at a temperature of 22 ° C / a relative humidity of 60% for 2 days, and the moisture content ratio of the tobacco yarn was adjusted to 12% by mass. Thereby, the tobacco yarn for cigarette preparation is adjusted.

 Example 1-2  

The tobacco yarn was prepared in the same manner as in Example 1-1. The tobacco silk of the prepared tobacco silk and the 3R4F reference cigarette were mixed at a ratio of 75 mass% and 25 mass%, respectively, and became tobacco yarn for cigarette blending.

 Examples 1-3  

The tobacco yarn was prepared in the same manner as in Example 1-1. The tobacco silk of the prepared tobacco yarn and the 3R4F reference cigarette were mixed at a ratio of 50% by mass and 50% by mass, respectively, to form a tobacco yarn for cigarette blending.

 Examples 1-4  

Tobacco yarn for cigarette preparation was prepared in the same manner as in Example 1-1, except that 13 g of a solid acid catalyst having a sulfonic acid group was added to 250 mL of the tobacco extract to prepare a reaction mixture of pH 3.4.

 Comparative Example 1-1  

Tobacco blending tobacco was prepared in the same manner as in Example 1-1, except that 7.5 g of a solid acid catalyst having a sulfonic acid group was added to 250 mL of the tobacco extract to prepare a reaction mixture of pH 2.5. .

 Comparative Example 1-2  

The tobacco yarn for cigarette preparation was prepared in the same manner as in Example 1-1, except that the solid acid catalyst having a sulfonic acid group was not added.

 Example 2-1  

To 5 g of tobacco silk (3R4F reference cigarette) having a water content ratio adjusted to 12% by mass, 5 mL of sulfuric acid adjusted to -1.0 was added to prepare a reaction mixture of pH 3.5. The obtained reaction mixture was allowed to stand at 22 ° C for 4 hours to cause a reaction of a component (tobacco component) contained in the tobacco yarn. The reaction mixture after the reaction was separated into a tobacco silk (solid portion) and sulfuric acid (liquid portion) after the reaction.

The obtained tobacco yarn was dried in a room at a temperature of 22 ° C / 60% relative humidity for 2 days, and the moisture content ratio of the tobacco yarn was adjusted to 12% by mass. Thereby, the tobacco yarn for cigarette preparation is prepared.

 Comparative Example 2-1  

The tobacco yarn for cigarette preparation was prepared in the same manner as in Example 2-1, except that a reaction mixture having a pH adjusted to 1.7 was added to the tobacco yarn to prepare a reaction mixture of pH 5.1.

 Comparative Example 2-2  

The tobacco blending tobacco yarn was prepared in the same manner as in Example 2-1, except that a sulfuric acid adjusted to pH 2.5 was added to the tobacco yarn to prepare a reaction mixture of pH 5.2.

 Comparative Example 2-3  

The tobacco yarn for cigarette blending was prepared in the same manner as in Example 2-1, except that a reaction mixture having a pH adjusted to 3.0 was added to the tobacco yarn to prepare a reaction mixture of pH 5.2.

 Comparative Example 2-4  

The tobacco yarn for cigarette preparation was prepared in the same manner as in Example 2-1 except that ultrafine water (pH 7.0) was added to the tobacco yarn instead of sulfuric acid to prepare a reaction mixture of pH 5.1.

 Example 3-1  

25 g of tobacco silk (3R4F reference cigarette) having a water content adjusted to 12% by mass was immersed in 250 mL of hot water (60 ° C) for 2 hours to extract a component (tobacco component) contained in the tobacco yarn. Thereafter, a sieve having a mesh size of 0.15 mm was used, and the sieved tobacco extract and the residue remaining on the sieve were separated.

6 mL of sulfuric acid adjusted to -1.0 was added to 250 mL of the obtained tobacco extract to obtain a reaction mixture of pH 1.7. The resulting reaction mixture was allowed to stand at 22 ° C for 4 hours to cause a reaction of the tobacco component.

The resulting liquid was concentrated to a liquid amount of about 12.5 g using an evaporator to remove the extraction solvent (water). 12.5 g of the obtained treatment liquid was added to 12.5 g of the extraction residue. The obtained mixture was dried in a room at a temperature of 22 ° C / a relative humidity of 60% for 2 days, and the moisture content ratio of the tobacco yarn was adjusted to 12% by mass. Thereby, the tobacco yarn for cigarette preparation is prepared.

 Comparative Examples 4-1 to 4-5  

In Comparative Examples 4-1 to 4-5, except for using nitric acid instead of sulfuric acid, the tobacco yarn for cigarette blending was prepared in the same manner as in Example 2-1.

In Comparative Example 4-1, a cigarette was prepared in the same manner as in Example 2-1 except that a nitric acid having a pH adjusted to -1.0 was added to the tobacco yarn to prepare a reaction mixture having a pH of 2.0. Tobacco yarn for blending.

In Comparative Example 4-2, except that a reaction mixture having a pH adjusted to 0.5 was added to the tobacco yarn to prepare a reaction mixture of pH 4.9, the cigarette preparation was carried out in the same manner as in Example 2-1. Use tobacco silk.

In Comparative Example 4-3, except that a reaction mixture having a pH adjusted to 1.7 was added to the tobacco yarn to prepare a reaction mixture of pH 5.0, the cigarette preparation was carried out in the same manner as in Example 2-1. Use tobacco silk.

In Comparative Example 4-4, except that a reaction mixture having a pH adjusted to 2.6 was added to the tobacco yarn to prepare a reaction mixture of pH 5.1, the cigarette preparation was carried out in the same manner as in Example 2-1. Use tobacco silk.

In Comparative Example 4-5, except that a reaction mixture having a pH adjusted to 3.6 was added to the tobacco yarn to prepare a reaction mixture of pH 5.1, the cigarette preparation was carried out in the same manner as in Example 2-1. Use tobacco silk.

 Reference example  

In the reference example, tobacco of 3R4F reference cigarette was used as a usual tobacco yarn.

 [2] Production of cigarettes  

A tobacco rod portion having a length of 57 mm, a circumference of 17 mm, and a filling amount of 300 mg per cigarette was prepared by wrapping the tobacco yarn prepared by wrapping paper. Roll paper used in the commercially available MEVIUS SUPER LIGHT was used as the roll paper. Further, a 17 mm paper tube having the same circumference as the tobacco rod portion was connected to the tobacco rod portion to prepare a cigarette for measurement.

 [3] Determination  

The following measurement was carried out using the prepared tobacco yarn and the produced cigarette.

 a. The proportion of carbon in tobacco silk  

The prepared tobacco tobacco was prepared to be stored in a blending environment (22 ° C, 60% relative humidity) for 24 hours or more. After storage, 0.01 g of tobacco silk was weighed and heated to 800 ° C in an oxidizing atmosphere. The obtained combustion product was analyzed by an elemental analysis device SUMIGRAPH NCH-22F (manufactured by Sumitomo Chemical Co., Ltd.) to determine the elemental composition. Crystalline cellulose is used as a reference for carbon and hydrogen.

 b. The proportion of carbon in the carbide  

The prepared tobacco tobacco was prepared to be stored in a blending environment (22 ° C, 60% relative humidity) for 24 hours or more. After storage, 0.2 g of tobacco silk was placed in a crucible, placed in a high-temperature furnace, heated to 500 ° C in a nitrogen atmosphere, and then held at 500 ° C for 10 minutes. After the temperature of the high-temperature furnace was lowered to 50 ° C or lower, the crucible was taken out, placed in a desiccator at 22 ° C, and allowed to stand for 0.5 hour to obtain a carbide. Weigh 0.01 g of carbide and heat to 800 ° C in an oxidizing atmosphere. The obtained combustion product was analyzed by an elemental analysis device SUMIGRAPH NCH-22F (manufactured by Sumitomo Chemical Co., Ltd.) to determine the elemental composition. Crystalline cellulose is used as a reference for carbon and hydrogen.

 c. sidestream smoke  

The amount of sidestream smoke was measured by the method described in Japanese Laid-Open Patent Publication No. 2002-82053. That is, the cigarette for measurement is naturally burned to generate a sidestream smoke, and the visible light beam is irradiated in a direction perpendicular to the rising direction of the sidestream smoke, and the intensity of the scattered light scattered in a direction perpendicular to the direction in which the visible light beam is irradiated is measured (and The amount of sidestream smoke is related).

 d. Number of cigarettes  

Only the tobacco rod portion (without the filter portion) was used as the cigarette for measurement. Smoking was carried out according to the CIR method (flow rate: 27.5 mL/sec, smoking time: 2 sec/suction, smoking frequency: 2 puff/min), and the number of cigarettes until the length of the butt length (Butt length) became 35 mm was measured.

 [4] Results  

The measurement results are shown in the following table. "Carbon content in tobacco silk" and "Carbon ratio in carbide" are the average values of three tobacco silk samples, respectively. "Sub-stream smoke" and "number of cigarettes" indicate three cigarette tests. The average value of the sample.

In Examples 1-1 to 1-4, and Comparative Examples 1-1 and 1-2, a tobacco extract was used as a reaction target, and a solid acid catalyst having a sulfonic acid group was used as a reaction-participating substance. From the results of these experiments, it is understood that the pH of the reaction mixture containing the tobacco extract and the solid acid catalyst is set to a specific value (3.5) or less, and when the reaction of the components contained in the tobacco yarn is produced, the obtained tobacco yarn does not cause smoking. The number of times is reduced, and the sidestream smoke generated from the cigarette can be reduced.

In Example 2-1 and Comparative Example 2-1 to 2-3, tobacco silk was used as a reaction target, and sulfuric acid was used as a reaction-participating substance. From the results of these experiments, it is also shown that when the pH of the reaction mixture containing tobacco silk and sulfuric acid is set to a specific value (3.5) or less, and the reaction of the components contained in the tobacco yarn is produced, the obtained tobacco yarn does not reduce the number of cigarettes to be smoked. Moreover, the sidestream smoke generated from the cigarette can be reduced.

In Example 3-1, a tobacco extract was used as a reaction object, and sulfuric acid was used as a reaction-participating substance. From this experiment, it is also shown that the pH of the reaction mixture containing the tobacco extract and sulfuric acid is set to a specific value (3.5) or less, and when the reaction of the components contained in the tobacco yarn is produced, the obtained tobacco yarn does not reduce the number of times of smoking, and Reduce the sidestream smoke generated from cigarettes.

Further, from the results of Examples 1-1 to 1-3, it is as follows. When the tobacco yarn obtained by the method of the present invention is formulated in a ratio of 100% by mass to the cigarette, the tobacco yarn is extremely difficult to burn when it is naturally burned, and the sidestream smoke can be remarkably reduced. On the other hand, when the tobacco yarn obtained by the method of the present invention is mixed with a usual tobacco yarn in a blending ratio of 50 to 75% by mass and formulated in a cigarette, the tobacco yarn can be easily burned when naturally burned, but The effect of reducing the sidestream smoke and the effect of burning at the same degree of burning as the usual tobacco yarn when smoking is burned.

Further, from the results of Comparative Examples 4-1 to 4-5, it was found that the pH of the reaction mixture was set to a specific value (3.5) or less by using nitric acid instead of sulfuric acid, and even if the components contained in the tobacco yarn were reacted, the cigarette could not be lowered. The sidestream smoke generated.

Further, from the results of Examples 1-1 to 1-3, Example 2-1, Example 3-1, and Reference Examples, it is understood that the tobacco yarn obtained by the method of the present invention is comparable to the conventional tobacco yarn. The number of smoking is reduced, and the sidestream smoke generated from the cigarette is reduced.

Claims (15)

A method for producing a tobacco yarn for blending a smoking article, comprising: reacting a tobacco extract and a tobacco yarn selected from the group consisting of tobacco silk containing a reaction mixture having a pH of 3.5 or less, and A reaction product selected from the group consisting of a solid acid catalyst having a sulfonic acid group and sulfuric acid is mixed to produce a reaction of a component contained in the tobacco yarn. The production method according to the first aspect of the invention, wherein the reaction object is a tobacco extract containing a component contained in tobacco silk, and the reaction-participating substance is a solid acid catalyst having a sulfonic acid group. The production method according to the first aspect of the invention, wherein the reaction object is a tobacco extract containing a component contained in tobacco silk, and the reaction-participating substance is sulfuric acid. The production method according to claim 1, wherein the reaction target is tobacco yarn, and the reaction-participating substance is a solid acid catalyst having a sulfonic acid group. The production method according to claim 1, wherein the reaction target is tobacco yarn, and the reaction participating substance is sulfuric acid. The production method according to any one of claims 1 to 5, wherein the reaction mixture has a pH of from 1.7 to 3.5. The production method according to claim 6, wherein the reaction mixture has a pH of from 1.7 to 2.5. A tobacco yarn for use in the preparation of a smoking article is obtained by the production method according to any one of claims 1 to 7. The invention relates to a tobacco yarn for blending smoking articles, which is a tobacco yarn for distributing smoking articles according to claim 8 of the patent application, wherein the proportion of carbon in the tobacco yarn for blending the aforementioned smoking articles is less than 0.50, and by using nitrogen in a nitrogen environment The tobacco yarn for tobacco preparation preparation was heated at 500 ° C for 10 minutes, and then the carbon content in the carbide was 0.50 or more at 22 ° C for 0.5 hour. A smoking article comprising the tobacco yarn for smoking article preparation according to item 8 of the patent application. A smoking article is the smoking article of the tobacco yarn for smoking article preparation according to claim 8, wherein the tobacco material for the smoking article formulation accounts for 100% by mass of the whole tobacco yarn contained in the smoking article. A smoking article is the smoking article of the tobacco material for smoking articles according to claim 8, wherein the tobacco material for the smoking article preparation comprises 50 to 75 mass% of the total tobacco yarn contained in the smoking article. A cigarette comprising the tobacco yarn for smoking article preparation according to item 8 of the patent application. A cigarette comprising the tobacco yarn for smoking article preparation according to claim 8, wherein the tobacco material for the smoking article formulation accounts for 100% by mass of the whole tobacco yarn contained in the cigarette. A cigarette comprising the tobacco yarn for smoking article formulation according to claim 8, wherein the tobacco material for the smoking article formulation comprises 50 to 75 mass% of the whole tobacco yarn contained in the cigarette.