RU2841582C2 - Smoking article in which technology is applied to reduce the content of materials that cause a tobacco smell - Google Patents

Abstract

FIELD: smoking articles.

SUBSTANCE: smoking product contains a portion of a tobacco medium, a portion of a tobacco filter and a wrapper. In a smoking article, part of the tobacco medium comprises a first tobacco medium obtained by mixing flue-dried tobacco, reconstituted tobacco sheet, split tobacco stalks (STS) and dry ice expanded tobacco (DIET), and a second tobacco medium obtained by mixing flue-dried tobacco, oriental tobacco, Burley tobacco, split tobacco stalks and dry ice expanded tobacco. Part of the tobacco filter contains activated carbon and a plasticiser.

EFFECT: provides for the possibility to reduce tobacco smell that remains in the mouth, on clothes, on hands after smoking, by decreasing the content of nitrogenous compounds being unique odorous components of tobacco contained in the main and side smoke flows.

11 cl, 5 dwg, 5 tbl, 5 ex

Description

Field of technology

The present invention relates to a smoking article that employs a technology for reducing the content of materials that cause tobacco odor.

Prior art

Tobacco smoke generated during smoking can be divided into the main smoke stream, which enters the oral cavity through the tobacco filter, and the side smoke stream, which exits into the atmosphere without passing through the filter.

The components that cause tobacco odor and are part of this mainstream and sidestream smoke may settle on the hand of the smoker holding the cigarette, causing a unique tobacco odor. These components may cause bad breath after smoking or cause discomfort to people around the smoker due to the tobacco smoke they perceive.

There is therefore a need to develop a smoking product that reduces bad breath after smoking, minimizes the tobacco smell remaining on the fingers, and reduces the discomfort experienced by non-smokers due to passive smoking.

Description of the invention

Technical goals

In order to overcome the above-mentioned problems and/or limitations of the prior art technology, the present invention provides a smoking article comprising a tobacco medium obtained by mixing leaf tobacco with a low total nitrogen content and a low filling capacity, and a filter comprising activated carbon with a large specific surface area and a plasticizer.

However, the problems to be solved are not limited to those described above, and other problems not mentioned above will be clear to a person skilled in the art from the following description.

Technical solutions

According to one embodiment of the present invention, a smoking article is proposed, comprising a portion of a tobacco medium, a portion of a tobacco filter and a wrapper.

The tobacco medium portion comprises a type V tobacco medium obtained by mixing flue-cured tobacco, reconstituted tobacco leaf, split stem tobacco (STS) and split cut tobacco (DIET), and a tobacco medium obtained by mixing flue-cured tobacco, Oriental tobacco, Burley tobacco, STS and DIET.

Part of the tobacco filter contains activated carbon and a plasticizer.

Effects

In one embodiment of the present invention, which uses a mixed tobacco medium containing mainly leaf tobacco with a low total nitrogen content and a high filling capacity, it is possible to reduce the tobacco odor that occurs during/after smoking by reducing the content of odor-causing components and to provide consumers with benefits by masking the odor with flavoring or other similar substances. In addition, the advantage lies in the possibility of reducing the odor of tobacco remaining in the mouth, on clothes, hands, etc. after smoking by reducing the content of nitrogen compounds, which are unique odorous components of tobacco, contained in the mainstream and sidestream smoke.

It should be understood that the effects of the present invention are not limited to the above-described effects and include all effects that can be obtained from the configurations and features disclosed in the following description or claims of the present invention.

Brief description of the drawings

FIG. 1 is a chart illustrating a comparison of hand odor levels depending on the types of activated carbon included in a smoking product.

FIG. 2 is a chart illustrating a comparison of hand odor severity levels based on the use of a Transfer Nozzle System (TJNS) and/or superactivated carbon.

FIG. 3 is a diagram illustrating a comparison of changes in the reduction of nitrogen compounds in the mainstream smoke depending on the type of mixture, cigarette paper, and filter.

FIG. 4 is a graph illustrating a comparison of changes in sidestream smoke nitrogen reduction depending on the type of mixture, cigarette paper, and filter.

FIG. 5 is a graph illustrating a comparison of changes in hand odor reduction depending on the type of blend, cigarette paper, and filter.

The best embodiment of the invention

The embodiments of the invention are described in detail below with reference to the accompanying drawings. However, various changes and modifications can be made to the embodiments of the invention. In this case, the embodiments are not considered to be limited by the description. It should be considered that the embodiments include any changes, equivalents and replacements within the idea and technical scope of the description.

The terminology used herein is intended to describe only certain embodiments of the invention and is not limiting to these embodiments. The singular form includes both singular and plural nouns, except where the context clearly dictates otherwise. In addition, it should be understood that the terms "comprises/comprising" and/or "includes/including", when used in this description of the invention, specify the presence of the stated functions, integers, steps, operations, elements and/or components, but do not exclude the presence or addition of one or more other functions, integers, steps, operations, elements, components and/or groups thereof.

Unless otherwise specified, all terms (including technical and scientific terms) used herein have the meaning commonly used by those skilled in the art to which the exemplary embodiments of the present invention pertain. In addition, terms, such as those defined in commonly used dictionaries, should be interpreted as having a meaning consistent with their meaning in the context of the prior art, and will not be interpreted in an idealized or overly formal sense unless explicitly defined in the text.

When describing embodiments with reference to the accompanying drawings, like reference signs refer to like components, and any repeated description relating thereto will be omitted. In the description of embodiments, a detailed description of known related structures or functions will be omitted if such a description may lead to an ambiguous interpretation of the present disclosure.

In addition, the terms "first," "second," A, B, (a) and (b) may be used to describe the constituent elements of the embodiments. These terms are used only to distinguish the components, and the nature, sequence or order of the components is not limited by these terms.

A component whose function is the same as that of a component included in one of the embodiments will be described using the same name in other embodiments. Unless otherwise indicated, the description of one embodiment of the invention may be applicable to other embodiments, so repeated descriptions will be omitted for brevity.

In this document, "smoking article" means an article capable of generating an aerosol, such as a cigarette, cigar, or the like. The smoking article may contain a material or substrate for generating an aerosol. In addition, the smoking article may include solid materials based on tobacco raw materials, such as tobacco web, cut tobacco, or homogenized tobacco. The smoking material may contain volatile substances.

In the document as a whole, "up" or "upward direction" refers to the direction away from the mouth of the user who is smoking the smoking article, and "down" or "downward direction" refers to the direction toward the mouth of the user who is smoking the smoking article.

In addition, the description describes as an example a smoking article in the form of a combustible cigarette, but the embodiments are not limited to this embodiment, and the smoking article may be a heated cigarette or another article used together with an aerosol generating device, in particular an electronic cigarette device, etc.

According to one embodiment of the present invention, a smoking article is proposed, comprising a portion of a tobacco medium, a portion of a tobacco filter and a wrapper.

The tobacco medium portion contains a tobacco medium type V (Virginia Blend) obtained by mixing flue-cured tobacco, reconstituted tobacco leaf, split stem tobacco (STS) and split cut tobacco (DIET), and a tobacco medium type A (American Blend) obtained by mixing flue-cured tobacco, Oriental tobacco, Burley tobacco, STS and DIET.

Part of the tobacco filter contains activated carbon and a plasticizer.

The tobacco medium included in the tobacco medium part of the smoking article may contain flue-cured tobacco, Burley tobacco and Oriental tobacco as the main raw material, and may contain reconstituted tobacco leaf, exploded tobacco stems (STS) and exploded cut tobacco (DIET) as auxiliary raw materials. In particular, in order to reduce the amount of generated nitrogen compounds causing odor, the main raw material and the auxiliary raw material with a low total nitrogen content and filling capacity can be mixed to mix the leaves, and may correspond to a type V tobacco medium obtained by mixing flue-cured tobacco, reconstituted tobacco leaf, STS and DIET, and a type A tobacco medium obtained by mixing flue-cured tobacco, Oriental tobacco, Burley tobacco, STS and DIET. In addition, in the case of flue-cured tobacco, from the viewpoint of improving the efficiency, mixing mainly with thin leaves is preferable, and in the case of adding Burley tobacco, from the viewpoint of reducing odor, mixing with a minimum amount of this tobacco is preferable. In one embodiment, the above materials may correspond to a type V tobacco medium, which is introduced with 40% flue-cured fine leaf tobacco, 10% reconstituted tobacco leaf, 25% STS I and 20% DIET 9, and a type A tobacco medium, which is introduced with 28% fine leaf tobacco, 4.2% Oriental tobacco, 20.6% Burley III tobacco, 8% STS I and 29.2% DIET 9, respectively.

In addition, the tobacco medium, in addition to being a mixed tobacco medium, can also be flavored with flavored liquid material. This can supplement the insufficient aroma of leaf tobacco when smoking, and not only mask the unwanted aroma and taste, but also give a characteristic aroma.

In this case, the flavored liquid material used for flavoring may be one or more materials from the group consisting of rosemary, eucalyptol, licorice, sucrose, fructose syrup, isosweet high fructose glucose syrup, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, mandarin oil, catechin, grapefruit, caraway, cognac, jasmine, cocoa butter, menthol, ylang-ylang, sage, mint, ginger, coriander and coffee, and other materials.

Moreover, the part of the tobacco filter that is part of the smoking product may contain activated carbon and a plasticizer.

Since the smoking article in one embodiment contains activated carbon, the nitrogen compound causing the odor can be absorbed by the activated carbon, which can reduce the content of the nitrogen compound in the mainstream smoke and the side smoke, as well as the odor from the hands. The activated carbon can be not only ordinary activated carbon, but also superactivated carbon, from the viewpoint of reducing the content of the material causing the odor of tobacco, it is preferable to introduce superactivated carbon.

In this case, the ordinary activated carbon described in the present invention may be an activated carbon with a specific surface area of 800 to 1200 ^m2 /g, and the superactivated carbon may be an activated carbon with a specific surface area of 1800 to 2000 ^m2 /g or more.

In addition, the tobacco filter portion may comprise a filter flavored by injecting a flavored liquid into the fiber using a transfer nozzle system (TJNS) during the filter manufacturing process, and may separately comprise a capsule containing a flavored liquid material with one or more solvents from a group consisting of medium-chain fatty acid triglyceride (MCTG) and propylene glycol (PG). This can effectively reduce the content of nitrogen compounds, i.e., semi-volatile organic compounds, which affects not only the mainstream and sidestream smoke but also the severity of hand odor.

In this case, when activated carbon, a capsule containing flavored liquid, and a TJNS filter are used at the same time, it is preferable to place the activated carbon filter in front of the capsule and the TJNS filter, since there is a risk that the components of the flavored liquid will be absorbed by the activated carbon when passing through the activated carbon, which may reduce its functionality.

The capsule, which is part of the tobacco filter, is designed to be destroyed when pressure is applied, and the destruction that has occurred may be indicated, for example, by the fact that when the capsule is crushed by hand, the flavored liquid inside the capsule wets the filter of the smoking product.

A smoking article wrapper made according to one embodiment of the present invention may be made of general-purpose filter wrapping paper, and may preferably comprise cigarette paper (low sidestream cigarette paper) to which one or more fillers from the group consisting of magnesium oxide, titanium oxide, cerium oxide, aluminum oxide, zirconium carbonate, calcium carbonate (CaCO ₃ ), Al(OH) ₃ and Mg(OH) ₂ are added. Adding such a filler to the cigarette paper makes it possible to reduce the sidestream smoke and reduce the content of a nitrogen compound, which is a material that causes an unpleasant odor, compared to a smoking article made from conventional cigarette paper.

Hereinafter, the configuration of the present invention and its effects will be described in more detail by examples and comparative examples. However, the examples are only intended to describe the description in more detail, and therefore the scope of the description is not limited to the examples.

- Example

1. Manufacturing and evaluation of smoking products for each type of tobacco

The present inventors prepared 10 types of smoking articles, as shown in Table 1 below, to compare the expression levels of odor-causing components depending on the types of tobacco (filter type, tar content, filter additive type, cigarette circumference).

[Table 1]

No. Type Flavoring of cut tobacco Filter Cigarette paper Resin 1 Standard Oh Acetate Double Normal 3 mg 2 Standard × Acetate Double Normal 3 mg 3 Standard Oh Acetate Double Normal 1 mg 4 Standard Oh Acetate Double Normal 6 mg 5 Standard Oh Acetate Double Mg(OH) ₂ 3 mg 6 Standard Oh Activated carbon 3 mg/mm Normal 3 mg 7 Standard Oh Superactivated carbon 3 mg/mm Normal 3 mg 8 Standard Oh Mono
+ TJNS/capsule Normal 3 mg 9 Standard Oh Superactivated carbon 3 mg/mm
+ TJNS/capsule Normal 3 mg 10 Super thin Oh Acetate Double Normal 3 mg *Monofilter: Acetate filter without activated carbon
*Acetate Double Filter: Two acetate filters without activated carbon are used

(1) Confirmation of effective reduction of nitrogen compounds

For the manufactured smoking articles No. 1, 3, 7 and 8, the effect of reducing the content of nitrogen compounds, which are semi-volatile organic compounds, was confirmed, and the result is shown in Table 2 below. Comparison of smoking articles showed that the effect of reducing the content of nitrogen compounds was most pronounced in smoking article No. 7, which contained 3 mg/mm of superactivated carbon.

[Table 2]

Nitrogen compounds Pillow + impinger №1 №3 №7 №8 Pyridine 21.9 20.5 9.00 21.33 2-picoline 7.30 6.87 2.63 6.97 2,6-lutidine 1.10 1.07 0.40 0.97 3-picoline 12.0 11.20 4.43 11.2 4-picoline 1.33 1.27 0.60 1.23 2,5-lutidine 1.53 1.53 0.60 1.43 2,4-lutidine 1.20 1.13 0.50 1.03 3-vinylpyridine 1176473 1167821 486788 1008664 Pyrrole 8.03 7.10 4.63 7.20 2,2'-bipyridyl - - - - Indole 5.03 4.87 6.03 4.27 *3-vinylpyridine: Relative quantitative values are expressed as peak area since the reagent was not available at the time of the experiment.

(2) Confirmation of effective reduction of nitrogen compounds (reduction of hand odor)

For the manufactured smoking articles No. 1-10, the level of odor intensity from hands was measured for each smoking article, the measurement results are shown in Table 3 below and in FIGS. 1 and 2.

[Table 3]

Total solids volume Pyridine 3-ethylpyridine 3-ethenylpyridine Nicotine Pyridine/Total Solids 1 13.25 0.20 0.03 0.06 2.08 0,015 2 13.33 0.19 0.03 0.06 2.28 0,014 3 9.24 0.19 0.03 0.05 2.90 0,021 4 19.24 0.17 0.03 0.05 2.05 0,009 5 15.86 0.20 0.03 0.05 2.13 0,012 6 15.02 0.09 0.02 0.04 2.58 0.006 7 13.34 0.04 0.01 0.03 2.49 0.003 8 14.31 0.10 0.02 0.03 2.33 0,007 9 13.39 0.03 0.01 0.03 2.54 0.002 10 12.87 0.10 0.01 0.03 2.83 0,008

As shown in FIG. 1, which shows the degree of hand odor depending on the type of activated carbon, it is confirmed that the smoking article No. 6 using ordinary activated carbon shows a more pronounced effect of reducing hand odor than the smoking article No. 1, which serves as a control group, and the smoking article No. 7 using superactivated carbon shows a more pronounced effect of reducing hand odor than the smoking article No. 6.

In addition, as shown in FIG. 2, which shows the degree of hand odor depending on the use of TJNS and/or superactivated carbon, it was found that the smoking article No. 8, which uses TJNS, shows a more pronounced effect of reducing hand odor than the smoking article No. 1, which serves as a control group, and the smoking article No. 9, which simultaneously uses superactivated carbon and TJNS, shows a more pronounced effect of reducing hand odor than the smoking article No. 8 (reducing the content of odor-causing components by about 80%).

(3) Confirmation of effective reduction of nitrogen compounds (reduction of odor-causing components in sidestream smoke)

The present inventors tested the manufactured smoking articles Nos. 1, 2 and 5 to investigate the effect of reducing the content of odor-causing components in the sidestream smoke depending on the flavoring of cut tobacco and the use of low sidestream cigarette paper, and the result of this test is presented in Table 4 below.

[Table 4]

No. Pyridine 3-ethylpyridine 3-ethenylpyridine Nicotine 1 1.56 2.44 36.89 4150,56 2 1.56 2.33 35,00 4505,89 5 0.67 1.33 19.56 3331,89

As shown in the above Table 4, it was found that smoking article No. 5 with cut tobacco flavoring and using low sidestream cigarette paper exhibited a more pronounced effect of reducing the content of odor-causing components in the sidestream smoke (reduction of about 57% for pyridine) than smoking articles No. 1 and No. 2.

2. Production and evaluation of smoking products with a mixture of leaf tobacco

The present inventors produced smoking articles according to Examples 1 to 4 and Comparative Example 1 in a configuration shown in Table 5 below to examine the change in the reduction of nitrogen compounds, which are odor-causing materials, depending on the mixture for each type of leaf tobacco, type of cigarette paper, and type of filter.

[Table 5]

Mixture Cigarette paper Filter Wrapping paper Note Example 1 Type A
(flavored) Low side smoke flow Superactivated carbon 3 mg/mm Normal VR 65% Example 2 Type V
(flavored) Low side smoke flow Superactivated carbon 3 mg/mm Normal VR 65% Example 3 Type V
(flavored) Low side smoke flow Superactivated carbon 3 mg/mm Normal VR 65% Example 4 Type V
(flavored) For RAISON BLUE For RAISON BLUE Normal VR 65% Comparative example 1 RAISON BLUE For RAISON BLUE For RAISON BLUE For RAISON BLUE Current standard *Type V: Leaf blend (Virginia Blend without Burley tobacco) containing 40% flue-cured fine leaf tobacco, 10% reconstituted leaf tobacco, 25% STS and 20% DIET
*Type A: Leaf blend (American Blend with Burley tobacco) containing 28% flue-cured tobacco, 4.2% oriental tobacco, 20.6% Burley tobacco, 8% STS and 29.2% DIET
*RAISON BLUE Blend: A leaf blend (American Blend with Burley tobacco) with 3 mg of resin, which contains 38% flue-cured tobacco, 4.2% oriental tobacco, 8% reconstituted tobacco leaf, 26.2% Burley tobacco, 4% STS and 19.6% DIET
*Cigarette paper for RAISON BLUE: Cigarette paper with porosity of 45 USD
*Filter for RAISON BLUE: Filter with 460 mm _H2O
*Wrapping paper for RAISON BLUE: Wrapping paper with porosity of 850 ue
*VR: External air flow

Then, for Examples 1 to 4 and Comparative Example 1, the effects of reducing the content of nitrogen compounds in the mainstream smoke and sidestream smoke and the hand odor were confirmed, the results of which are shown in FIG. 3 (mainstream smoke), FIG. 4 (sidestream smoke), and FIG. 5 (hand odor), respectively.

As a result, it was confirmed that in the smoking article of Example 2 containing the type V mixture, superactivated carbon and low sidestream smoke cigarette paper, the content of nitrogen compounds was reduced by about 50% or more, as compared with the existing product (Comparative Example 1) (FIG. 3), and in the smoking articles of Examples 1 to 4, an effect of reducing the content of nitrogen compounds by about 30 to 45% was found in the hand odor and sidestream smoke, as compared with the smoking article of Comparative Example 1 (FIGS. 4 and 5).

According to the above Table 4, it was confirmed that the tobacco odor was suppressed in the smoking product containing the TJNS filter and capsule compared with the unflavored filter.

In the study of such experimental examples, it was found that by using a certain mixture of leaf tobacco and a certain cigarette paper, cut tobacco flavoring, TJNS and capsule, the content of nitrogen compounds causing odor in the mainstream smoke and sidestream smoke as well as hand odor can be significantly reduced, and the effect of reducing odor-causing components can be maximized by using a combination of them.

Although embodiments have been described with reference to the drawings, it will be apparent to those skilled in the art that various changes and modifications in form and detail may be made to these embodiments without departing from the spirit and scope of the claims and their equivalents. For example, suitable results may be achieved if the described techniques are performed in a different order, and/or if components of the described system, architecture, device or circuit are combined in a different manner and/or replaced or supplemented with other components or their equivalents.

Therefore, other embodiments, implementations and equivalents of the claims are also included within the scope of the following claims.

Claims (11)

1. A smoking article comprising a tobacco medium portion, a tobacco filter portion and a wrapper, wherein the tobacco medium portion comprises a first tobacco medium obtained by mixing flue-cured tobacco, reconstituted tobacco leaf, split stem tobacco (STS) and split cut tobacco (DIET), and a second tobacco medium obtained by mixing flue-cured tobacco, Oriental tobacco, Burley tobacco, split stem tobacco and split cut tobacco, and wherein the tobacco filter portion comprises activated carbon and a plasticizer. 2. A smoking article according to claim 1, wherein a portion of the tobacco medium comprises a first tobacco medium, and wherein the first tobacco medium comprises 40% flue-cured tobacco, 10% reconstituted tobacco leaf, 25% STS and 20% DIET. 3. A smoking article according to claim 1, wherein a portion of the tobacco medium comprises a second tobacco medium, and wherein the second tobacco medium comprises 28% flue-cured tobacco, 4.2% oriental tobacco, 20.6% burley tobacco, 8% STS and 29.2% DIET. 4. A smoking article according to claim 1, wherein the activated carbon is activated carbon with a specific surface area of 1800 ^m2 /g or more. 5. A smoking article according to claim 1, wherein the plasticizer is triethyl citrate (TEC). 6. A smoking article according to claim 1, wherein the tobacco medium is flavored with a flavored liquid material. 7. A smoking article according to claim 1, wherein the tobacco filter portion comprises a filter with a transfer nozzle system (TJNS) flavored with a flavored liquid material. 8. A smoking article according to claim 1, wherein the tobacco filter portion comprises a capsule containing a flavoured liquid material. 9. A smoking article according to any one of claims 6 to 8, wherein the flavoured liquid material is one or more materials from the group consisting of rosemary, eucalyptol, licorice, sucrose, fructose syrup, high fructose glucose syrup, cocoa, lavender, cinnamon, cardamom, celery, fenugreek, cascarilla, sandalwood, bergamot, geranium, honey essence, rose oil, vanilla, lemon oil, orange oil, mint oil, mandarin oil, catechin, grapefruit, caraway, cognac, jasmine, cocoa butter, menthol, ylang-ylang, sage, mint, ginger, coriander and coffee. 10. A smoking article according to claim 9, wherein the solvent for containing the flavored liquid material is one or more materials from the group consisting of medium chain fatty acid triglyceride (MCTG) and propylene glycol (PG). 11. A smoking article according to claim 1, wherein the wrapper is made of cigarette paper to which one or more fillers from the group consisting of magnesium oxide, titanium oxide, cerium oxide, aluminum oxide, zirconium carbonate, calcium carbonate (CaCO ₃ ), Al(OH) ₃ and Mg(OH) _{2 have} been added.

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