KR20110063548A - Filter for a smoking article - Google Patents

Abstract

The present invention provides a filter for a smoking article. The filter component comprises a plug of filter material, a tobacco core extending substantially longitudinally through the plug of filter material, and packaging means wrapped around at least a portion of the surface of the tobacco core extending in the longitudinal direction. Filter components can be used in various smoking articles.

Description

Filter for smoking article {FILTER FOR A SMOKING ARTICLE}

The present invention relates to a filter for a smoking article.

It is known that smoke filtering of smoking articles, such as cigarettes, can affect the taste and aroma characteristics of the product during smoking. Filters generally contain an adsorbent material, such as activated carbon, which reduces certain components of the smoke during smoking. However, activated carbon in the filter may adversely affect the taste and / or aroma characteristics of the cigarette.

Therefore, in the first aspect of the present invention. A filter component for smoking articles is provided, the filter component surrounding a plug of filter material, a tobacco core extending substantially longitudinally through the plug of filter material, and at least a portion of a surface of the tobacco core extending in the longitudinal direction. Packaging means to be packaged in.

The inventors have found that the supply of a substantially longitudinal tobacco core can improve the aroma of smoke (including gas and particulate matter) inhaled by the smoker. Moreover, the packaging means ensures that the tobacco is retained in the core within the plug of filter material, and that smoke is directed along it.

Preferably, the tobacco extends substantially longitudinally between the opposing cross sections of the plug of filter material. Preferably, the tobacco extends in a direction substantially parallel to the side of the filter material plug, which side is substantially parallel to one or both of the cross sections. Preferably, the tobacco extends through the inner portion of the filter material and is surrounded by the filter material. Preferably, the cigarette extends substantially through the center of the filter material plug.

Advantageously, the tobacco core is disposed in a location proximate to the path of the gas flow as the gas flow passes through the filter component, thereby affecting various properties of the gas flow before the flow reaches the smoker's mouth. Can be. Moreover, since the tobacco core is disposed in the filter material plug substantially in the longitudinal direction, it does not adversely affect the velocity or direction of the gas flow, so that smokers have a noticeable difference in resistance to inhalation through the filter. I can't figure it out.

Tobacco cores are sliced tobacco, powdered tobacco, reconstituted tobacco, tobacco fibers, tobacco sheets, cut tobacco lamina. Cut tobacco blends and / or tobacco stems. However, preferably the tobacco core comprises cut tobacco lamina, cut tobacco blend and / or tobacco stem.

The tobacco core may form a tobacco rod having any cross-sectional shape. For example, the tobacco core may form a tobacco rod of triangular or square cross section. Preferably, however, the tobacco core may form a tobacco rod having a circular cross section. Here, the tobacco core may be substantially cylindrical in shape.

The packaging means can be substantially permeable to air so that smoke can pass through the packaging means within the tobacco core when the smoker inhales. The packaging means can be formed from any conventional paper material. For example, the packaging means may comprise plug wrap or paper, for example cigarette paper. The packaging means may be perforated. The packaging means may be recycled wrappers or tobacco sheet wrappers. The packaging means may comprise a cigarette mouth. The packaging means may be impervious.

The packaging means may be in substantially contact with all of the sides of the tobacco core extending in the longitudinal direction. Preferably, the packaging means circumscribes. However, the packaging means are not arranged around at least one cross section of the tobacco core, preferably around each cross section.

The tobacco core may comprise one or more longitudinal sections of tobacco rods of smoking articles, such as cigarettes, cigars or cigars, or may be derived from one or more longitudinal sections of tobacco rods of smoking articles, wherein A smokeable section may mean one or more longitudinal sections of a tobacco rod of smoking article. It will be apparent that the longitudinal section of the tobacco rod may comprise wrapping paper such as cigarette paper and the like, and the wrapping paper may form the wrapping means of the first component of the first side.

It is preferred that the diameter of the longitudinal section of the tobacco rod is smaller than the diameter of the plug of filter material and thus the diameter of the filter component according to the first face, which allows it to form a tobacco core extending there through. Standard size cigarettes tend to have a diameter of about 7.5 mm to about 9.5 mm (preferably 8 mm to 12 mm), whereas slim cigarettes tend to have a diameter of about 2 mm to 6 mm. Thus, since the diameter of the tobacco rod of the slim cigarette is smaller than the diameter of the cigarette of the standard size, the inventors have found that in order to form a packaged tobacco core of the filter component for use in a filter of smoking articles of the standard size, It was envisioned to use sections of tobacco rods of slim smoking articles extending in the longitudinal direction. The inventors have thought that using tobacco rod sections of slim smoking articles may first be considered to form a tobacco core in a filter of smoking articles of standard size.

On the other hand, in a second aspect of the invention, there is provided a filter component for a smoking article, the filter component comprising a plug of filter material and a tobacco core extending substantially longitudinally through the plug of filter material, wherein The tobacco core includes one or more longitudinal sections of the tobacco rod of the smoking article or is derived from one or more longitudinal sections of the tobacco rod of the smoking article.

The tobacco core may comprise a longitudinal section of the tobacco rod of the slim smoking article, or may be derived from the longitudinal section of the tobacco rod of the slim smoking article. By using the longitudinal section of the packaged tobacco rod of the slim smoking article, the manufacture of standard sized filter components can be facilitated. Moreover, it is advantageously easier to exchange cigarettes in the longitudinal core extending through the filter material, resulting in different tobacco styles and tastes within the range of the filter components.

It will be apparent that there are many different types of slim smoking articles from which the tobacco core may be derived, and that the dimensions of the slim smoking articles may vary from brand to brand. However, the diameter of the tobacco core in the filter component of the first or second face may be between 3 mm and 8 mm, preferably between 3 mm and 7 mm, more preferably between 3.5 mm and 6.5 mm And between 4 mm and 6 mm most preferably.

In preparation, the tobacco core may be encased by the filter material to form the components of the first or second side. The plug of filter material may comprise any suitable filter media well known to those skilled in the art. Preferred filter materials include cellulose acetate. The diameter of the filter material plug may be between about 5 mm and 15 mm, preferably between 6 mm and 12 mm, more preferably between 7 mm and 10 mm, most preferably 7 mm To 9 mm.

Preferably, the diameter ratio of the diameter of the tobacco core to the plug of the filter material may be between 0.5: 1 and 10: 1, more preferably between 1: 1 and 5: 1, more preferably 1 It may be between 1: 1 and 3: 1, most preferably between 1.5: 1 and 2: 1.

The filter component of the first side or the second side may comprise a flavorant. In embodiments where playborant is used, the playborant may be incorporated into a plug of filter material. Preferably, however, the borborant may be incorporated into the tobacco core. For example, the play borant may be sprayed onto the tobacco material prior to the formation of the rod.

It is obvious that the filter component according to the first or second side can be used for use in smoking articles in the manufacture of the filter.

According to a third aspect of the invention, there is therefore provided a filter for a smoking article, the filter comprising a filter component according to the first or second side.

The third side of the filter may comprise a plurality of filter elements according to the first or second side, wherein the tobacco core extends through a plug of filter material. For example, the filter may comprise filter components according to two, three, four, five or more first or second sides, wherein adjacent filter components may be connected to each other, or other filter configurations. It may be remote from the elements (may not be according to the first or second side).

Thus, the filter may comprise a plurality of filter components, one of which may be a filter component according to the first or second aspect of the present invention. For example, in one embodiment, in addition to including one or more filter components according to the first or second side (ie comprising a tobacco core), the filter on the third side may be an absorbent filter component. It may be assumed that the absorbent filter component may comprise an absorbent material. Absorbent filter components are provided to absorb and thus reduce certain components of the smoke during smoking. The absorbent filter component can include a plug of filter material dispersed therein. The filter material may be cellulose acetate. Preferred absorbent material is activated carbon. The activated carbon may be in the form of granular activated carbon, and may preferably be distributed substantially throughout the volume of the plug of filter material. Desirably, the absorbent filter component may not comprise a tobacco core.

In another embodiment, in addition to including one or more filter elements according to the first side or the second side (ie comprising a tobacco core), the filter according to the third side may comprise a filter material (eg cellulose Acetate) and filter components without a tobacco core or absorbent material.

The filter comprises two or more, preferably three or more filter elements, with one or more filter elements according to the first or second side. Preferably, the filter comprises a filter component according to the first or second side, an absorbent filter component comprising an adsorbent, and a filter component which does not comprise a tobacco core or adsorbent. Preferably, the plurality of filter components are arranged longitudinally with each other along the cross section of adjacent filter elements adjacent to the cross section of adjacent filter elements. It is preferred that the filter components have substantially similar diameters. It will be apparent that the various filter components may be arranged in any order within the filter, as shown in FIGS. 3 and 4.

The filter component of the first side or the second side, or the filter of the third side may be incorporated into the smoking article.

Thus, according to a fourth aspect of the invention, there is provided a smoking article comprising a filter component according to the first or second side or a filter according to the third side.

The smoking article preferably comprises a rod or section composed of smokeable material, for example tobacco. As used herein, the term "smoking article" includes smokeable articles such as cigarette derivatives, expanded tobacco, recycled tobacco or tobacco substitutes based on tobacco substitutes, cigars and cigar tobacco, and is heat or non-heatable. not-burn goods.

Sections and filters composed of smokeable material may be attached by tipping paper.

According to a fifth aspect of the invention, a method of manufacturing a filter component for a smoking article is provided, the method comprising providing a tobacco core through a plug of filter material, wherein the tobacco core is through the filter material plug. It extends substantially in the longitudinal direction and the wrapping means is wrapped around at least a portion of the surface of the tobacco core extending in the longitudinal direction.

According to a sixth aspect, a method of manufacturing a filter component for a smoking article is provided, the method comprising providing a tobacco core through a plug of filter material, the tobacco core being substantially through the plug of filter material. Extending in the longitudinal direction, the tobacco core comprises a longitudinal section of the tobacco rod of the smoking article or is derived from the longitudinal section of the tobacco rod of the smoking article.

The method according to the sixth aspect comprises arranging a longitudinal section of the tobacco rod of the slim smoking article such that the longitudinal section of the tobacco rod of the slim smoking article extends substantially longitudinally through the plug of filter material. can do. Preferably the method of the sixth aspect may comprise cutting the slim tobacco rod into sections of appropriate length prior to the arrangement of the plug of filter material.

The method of the fifth or sixth aspect preferably comprises introducing a tobacco core substantially into the center of the filter material. The method includes using guide means to guide the tobacco core when filter material tow is formed around it. The guide means comprises a guide tube, through which the tobacco core may be carried. When the tobacco core exits the guide means, it is preferably surrounded by filter material.

All features disclosed in this specification (including the following claims, abstracts, and drawings), and / or all steps of the disclosed processes or methods, are not limited to the extent that one or more of the features and / or steps are not excluded from each other. It can also be combined in the form.

DETAILED DESCRIPTION A description for a broad understanding of the present invention and for showing what effects the embodiments of the present invention have will be described with reference to the drawings below.
1 is a perspective view of a smoking article comprising a rod composed of a smokeable material, a filter according to the invention, tipping paper with a filter and rod attached together;
2 is a cross-sectional side view of a first embodiment of a filter according to the invention.
3 is a cross-sectional side view of a second embodiment of a filter.
4 is a cross-sectional side view of a third embodiment of the filter.

1, a smoking article 2 in the form of a cigarette is shown, comprising a filter 4 according to the invention. Although the smoking article 2 is shown in the form of a cigarette in the figure, it is obvious that the smoking article 2 may be in another form, for example cigars or cigarillos, etc. It may comprise a filter 4 according to the invention.

 Referring to FIG. 1, the smoking article 2 generally comprises a cylindrical paper-wrapped rod 6 composed of a smokeable material, such as a cigarette, which smokeable material is a tipping paper 8. Is coaxially attached to the filter 4, and the tipping paper 8 is glued around the rod 6 and one end of the filter 4.

2, there is shown a first embodiment of a filter 4 attached to a tobacco rod 6. In the present embodiment, the filter 4 is made of one filter component 12 having a length of about 27 mm, the filter component 12 having a filter material 20 having a diameter of 9 mm; For example, cellulose acetate). The first component 12 has generally circular first and second cross sections 22, 24, and is circumferentially at the side 26 substantially perpendicular to the first and second cross sections 22, 24. Extend in the lengthwise direction.

As shown in FIG. 2, a cylindrical tobacco core 10 having a diameter of 3 mm extends between two cross sections 22, 24 through a plug of filter material 20. To hold the cigarette as the core 10, it is packaged in a plug wrap or cigarette paper 11. The paper 11 is substantially pervious to air so that smoke can pass through it when the smoker inhales. The tobacco core 10 is substantially parallel to the surface 26 of the filter component 12 extending in the longitudinal direction and extending substantially through the center of the plug of the filter material 20.

In some embodiments, the tobacco core 10 is sold elsewhere under the company name Vogue, which may be obtained from ultra slim cigarettes, such as British American Tobacco, and available from Europe and Russia (dimensions: 5 mm by 99 mm) or sold under Kent Nanotek (5 mm by 83 mm) derived from tobacco rods used in the manufacture. It can be assumed that the tobacco core 10 consists of a cut tobacco lamina, a cut tobacco blend, or a cut tobacco stem that is packaged in a plug wrap or cigarette paper 11. Here, a suitable ultra-slim cigarette tobacco rod section consisting of a tobacco core packaged in cigarette paper may be used to form the tobacco core 10 packaged in the plug wrap 11 of the filter component 12 of the present invention. have.

The packaged tobacco core 10 has a diameter of about 3 mm and is then introduced into the center of the filter material 20. In the manufacture of the filter component 12, one method of introducing the tobacco core 10 into the plug of filter material 20 is as follows. This method includes entraining the tobacco core 10 through the lumen of a guide tube having a diameter of about 5 mm. At the same time, the fibrous filter material 20 (eg cellulose acetate) is fed as it passes through a series of blooming rollers to de-crimped. Subsequently, upon leaving the guide tube, a tow of de-crimped filter material 20 is formed around the core 10, resulting in a continuous of filter material 20 surrounding the wrapped tobacco core 10. Rod is formed. In order to yield a finished filter element 12 as shown in FIG. 2, the rod can then be cut to an appropriate length. The length of the filter element 12 depends on the type of filter 4 required. For example, a normal cigarette filter 4 has a length of about 27 mm. In the embodiment shown in FIG. 2, all of the 27 mm lengths of the filter 4 consist of filter components 12, which allow the core 10 to extend throughout. However, Figures 3 and 4 illustrate another embodiment, where the filter 4 is a shorter portion of the filter component 12 that encloses the core 10 jointly with another portion, as described below. ).

Referring to FIG. 3, there is shown a second embodiment of a filter 4 attached to a rod of tobacco 6. The filter 4 comprises a number of separate filters 12, 14, 16, each of which may have a different material composition. In the present embodiment, the filter 4 comprises three different filter elements 12, 14, 16. Each filter element 12, 14, 16 is generally cylindrical in shape, and they are shaped with substantially the same diameter. Each filter element 12, 14, 16 is wrapped in a layer of thin sheet material in the form of a wrapper known as a plug wrap (not shown), which plug wrap may be formed of conventional paper material. The filter component 16 farthest from the tobacco rod 6 (which may be closest to the smoker's mouth when in use) comprises a tow of a filter material 20, such as cellulose acetate, which is generally cylindrical. The filter material 20 provides a filter through which smoke can pass when a smoker inhales a cigarette. The filter component 12 disposed in the adjacent component 16 is a continuous plug of filter material 20 having a tobacco core 10 extending substantially longitudinally through the plug of filter material 20. It includes. This filter component 12 is similar to that shown in FIG. 1 except that it does not extend along the entire length of the filter 4.

The third filter component 14 disposed between the filter component 12 comprising the tobacco core 10 and the tobacco rod 6 comprises a plug of filter material 20, in which activated carbon 18 Adsorbents are dispersed. The activated carbon 18 may be in the form of granular activation, in which case the entirety of the plug of cellulose acetate 20 in a manner known in the art to the Dalmatian style, as shown in FIG. 3. Can be dispersed throughout the volume. Alternatively, activated carbon 18 may be sprayed onto the tacky outer surface 26 of the plug of cellulose acetate 20, attached to the inner surface of the plug wrap surrounding the cellulose acetate, or the plug of cellulose acetate 20 It may be attached to a face thread surrounded by (not shown). The activated carbon 18 may also be held in a cavity surrounded by a plug of cellulose acetate 20. Activated carbon 18 is provided to improve inhalation related smoking properties by removing toxic chemicals.

Referring to FIG. 4, there is shown a third embodiment of a filter 4 attached to the tobacco rod 6. In the present embodiment, the filter 4 includes the same three filter elements 12, 14, 16, except that the order of the components may be reversed, as in the second embodiment described above. As shown in FIG. 4, as in the second embodiment, the filter component 16 farthest from the tobacco rod 6 comprises a filter material 20 such as cellulose acetate. However, in the third embodiment, the filter component 12 disposed adjacent to the component 16 includes a plug of filter material 20 in which particles of activated carbon 18 are dispersed. As a result, the third filter component 12 disposed between the component 14 and the tobacco rod 6 comprises a continuous plug of filter material 20, through which the tobacco core 10 extends. do. Thus, in the second and third embodiments, the position of the filter component 12, 14 is exchanged.

As shown in FIGS. 3 and 4, the filter elements 12, 14, 16 are next arranged longitudinally from one another along the cross sections 22, 24 of each of the adjacent filter elements 12, 14, 16. . Although the three filter elements 12, 14, 16 are shown in substantially the same length in FIGS. 3 and 4, it will be apparent that they may be of different lengths. For example, in FIGS. 3 and 4, the filter component 12 comprising the tobacco core 10 is 12 mm long and the other components 14 such that the total length of the filter 4 is 27 mm. , 16) may each be 7.5 mm long. In addition, it is also possible for the filter 4 to include only two filter elements. For example, the filter 4 may comprise a filter component 12 comprising a tobacco core 10 (about 15 mm long) and a filter component comprising only filter material 20 (about 12 mm long). 16), in any order. Alternatively, the filter 4 may include, in any order, the filter component 12 comprising the tobacco core 10 and the filter component 14 comprising the activated carbon 18.

In addition, the filter 4 may comprise more than three filter elements 12, 14, 16. For example, filter 4 may comprise first and second filter components 16 consisting of cellulose acetate, third filter component 14 comprising cellulose acetate and activated carbon 18, and described above. And a fourth filter component 12 comprising a longitudinal tobacco core 10 as such. It will be appreciated that the various filter elements 12, 14, 16 can be arranged in various optional orders within the filter 4. However, in each embodiment, one or more filter components 12 comprising the tobacco core 10 are included in the filter 4.

Referring again to FIG. 1, the filter 4 is adapted to allow the flow of gas, including smoke, generated from the rod 6 made of smokeable material to move through the filter 4 prior to entering the smoker's mouth. It is located at the mouth-end of (2). As described in connection with FIG. 2, the tobacco core 10 is located within one or more filter components 12 and extends longitudinally between the cross sections 22, 24 of the plug of filter material 20. In this way, the tobacco core 10 is positioned at a point close to the gas flow path as the gas flow moves through the filter 4, thus affecting various properties of the gas flow before the flow reaches the mouth of the smoker. Can have

Tobacco core 10 may affect the overall nature of the gas stream, for example, such that the taste and aroma of the gas stream is improved. One application for the tobacco core 10 is activation, which is known to affect the taste and aroma characteristics of the gas flow, or the taste and aroma of tobacco smoke, which can be lost when the gas flow passes through the filter material 20. The degree of carbon 18 is changed. The inventor has surprisingly found that an arrangement of tobacco cores 10 extending longitudinally through the plug of filter material 20 can improve the taste of the smoke without compromising the flow characteristics of the smoke. It is to be understood that the present invention also includes additional modifications and variations within the scope of the claims.

Claims (26)

A filter component for smoking articles,
Plug of filter material,
A tobacco core extending substantially longitudinally through the plug of filter material, and
Packaging means wrapped around at least a portion of the surface of the tobacco core extending in the longitudinal direction
Including,
Filter component. The method of claim 1,
The tobacco core extends substantially longitudinally between opposite sections of the plug of filter material,
Filter component. The method of claim 2,
The tobacco core extends in a direction substantially parallel to a side of the plug of filter material, the side being substantially perpendicular to one or both of the cross sections,
Filter component. 4. The method according to any one of claims 1 to 3,
The tobacco core extends through an inner portion of the filter material and is surrounded by the filter material,
Filter component. The method according to any one of claims 1 to 4,
The tobacco core extends substantially through the center of the plug of filter material,
Filter component. The method according to any one of claims 1 to 5,
The tobacco core is flake tobacco, powdered tobacco, reconstituted tobacco, tobacco fiber, tobacco sheet, cut tobacco lamina. Comprising a cut tobacco blend and / or tobacco stem,
Filter component. The method according to any one of claims 1 to 6,
The tobacco core has a substantially cylindrical shape,
Filter component. The method according to any one of claims 1 to 7,
Said packaging means being substantially permeable to air,
Filter component. The method according to any one of claims 1 to 8,
The packaging means are formed of any conventional paper material,
Filter component. The method according to any one of claims 1 to 9,
The packaging means substantially contacts all of the sides of the tobacco core extending in the longitudinal direction,
Filter component. The method according to any one of claims 1 to 10,
The tobacco core comprises one or more longitudinal sections of the tobacco rod of the smoking article or is derived from one or more longitudinal sections of the tobacco rod of the smoking article,
Filter component. A filter component for smoking articles,
A plug of filter material, and
A tobacco core extending substantially longitudinally through the plug of filter material
Including,
The tobacco core comprises a longitudinal section of the tobacco rod of the smoking article, or is derived from the longitudinal section of the tobacco rod of the smoking article,
Filter component. The method of claim 12,
The tobacco core comprises a longitudinal section of the tobacco rod of the slim smoking article, or is derived from the longitudinal section of the tobacco rod of the slim smoking article,
Filter component. The method according to any one of claims 1 to 13,
The tobacco core has a diameter between 3 mm and 8 mm, preferably between 4 mm and 6 mm,
Filter component. The method according to any one of claims 1 to 14,
The filter material comprises cellulose acetate.
Filter component. The method according to any one of claims 1 to 15,
The diameter of the plug of filter material is between 5 mm and 15 mm, preferably between 7 mm and 9 mm,
Filter component. A filter for smoking articles,
The filter comprises a filter element according to any one of claims 1 to 16,
filter. The method of claim 17,
The filter comprises a plurality of filter components, wherein at least one of the plurality of filter components is a filter component according to any one of claims 1 to 16,
filter. The method of claim 17 or 18,
The filter comprising an absorbent filter component, the absorbent filter component comprising an absorbent material,
filter. The method of claim 19,
The absorbent material is activated carbon,
filter. The method according to any one of claims 17 to 20,
The filter includes a filter component that includes a filter material and does not include a tobacco core or an absorbent material.
filter. As a smoking article,
A filter element according to any one of claims 1 to 16, or a filter according to any one of claims 17 to 21,
Smoking goods. A method of making a filter component for a smoking article, the method comprising:
Providing a tobacco core through a plug of filter material, wherein the tobacco core extends substantially longitudinally through the plug of filter material, and at least a surface of the tobacco core through which the packaging means extends in the longitudinal direction; Being wrapped around some,
A method of making a filter component for a smoking article. A method of making a filter component for a smoking article, the method comprising:
Providing a tobacco core through a plug of filter material, the tobacco core extending substantially longitudinally through the plug of filter material, wherein the tobacco core extends the longitudinal section of the tobacco rod of the smoking article. Or derived from the longitudinal section of the tobacco rod of the smoking article,
A method of making a filter component for a smoking article. 25. The method of claim 24,
Arranging the longitudinal section of the tobacco rod of the slim smoking article such that the longitudinal section of the tobacco rod of the slim smoking article extends substantially longitudinally through the plug of filter material;
A method of making a filter component for a smoking article. The method according to any one of claims 23 to 25,
Introducing the tobacco core substantially into the center of the filter material,
A method of making a filter component for a smoking article.

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