KR101552736B1 - Cigarette filter with flavored particles - Google Patents

Abstract

(1) filtration zone; And (2) tobacco smoke enhanced plant flavor particles present in this filtration zone.

Flavor particles, cigarette filter, cigarette smoke strengthening filter rod

Description

CIGARETTE FILTER WITH FLAVORED PARTICLES FIELD OF THE INVENTION [0001]

The present invention relates to a novel cigarette smoke enhanced filter rod, a smoking article comprising the cigarette smoke enhanced filter rod, and a method for manufacturing the smoking article.

In U.S. Patent No. 3,771,534, entitled " Compound Filter and Cigarette Holder ", the filter cartridge is integrally formed in the cigarette holder. The two barrels are aligned, the ends of these barrels having similar diameters, one end connected to the cigarette to be smoked, and the other end connected to the short length of the cigarette acting as a tip. Filter cartridges can be impregnated with volatile oils such as menthol or mint to impart flavor to the cigarette smoke, and the two barrels serve as air chambers for cooling them. The purpose of this concept is basically based on a dual filter that provides protection from infectious agents. However, consumers are provided poor tobacco smoke, and cooling of tobacco smoke is an obstacle to the fixation of flavor. Moreover, the menthol and volatile oils have been found to provide an unpleasant aftertaste for some groups of consumers.

In US Patent 3,972,335, entitled " Mentholated Cigarette Filter ", the flavor cigarette filter made of granular activated carbon, known to be effective in filtering gaseous toxicants in cigarette smoke, Storage life and transfer rate are improved. In practice, the activated carbon acts not only as a pore-modifier, but also as any substance or sucrose that can be absorbed and retained by activated carbon (sucrose); The effect is configured to block most of the activated carbon holdings, and there are fewer retainers capable of adsorbing tobacco smoke-flavors, such as menthol. Thus, the flavoring agent is retained in the carbon during its shelf life, but is released when the cigarette smoke passes through the filter. However, this type of cigarette filter provides a significant disadvantage to the effective flavor of tobacco smoke. The pore-blocking step by pore-modifying agent is very complicated because it requires precise measurement and selection so that not only the form of the pore-modifier to be added to the carbon but also the amount of pore-blocking agent is blocked. This situation often results in inadequate filtration of harmful factors of tobacco smoke and very low flavor delivery, and the pore-modifying agent blocks most retention points on the carbon.

In U.S. Patent No. 4,620,554, entitled " Cigarette Taste Ameliorative ", the emollient of the cigarette flavor attaches to the upper end of the cigarette to provide not only the flavor of the smoke but also the nicotine taste. These emollients consist of a blend of powder material. The purpose of this invention is to improve the nicotine taste of tobacco smoke and reduce the irritancy associated therewith. However, this invention mainly aims to reduce and disguise the aftertaste and unpleasant taste of cigarette smoke caused by nicotine and other ingredients, as well as to enhance the taste of tobacco.

U.S. Patent No. 4,889,144, entitled " Cigarette Smoking Filter ", is based on the concept of a flavor cigarette filter. The filter tip contains a space filled with flavored-sealed particles in the middle. These flavor-sealing particles may contain not only one or more flavors selected from various powdery flavors (some of which are widely known include licorice, clove, cinnamon powder, vanilla, lemon, Japanese peppermint oil, etc.) It is made of polysaccharide and diluent. This encapsulation protects the flavor against volatilization and deterioration. In order to release the flavor, the capsule must be destroyed by the smoker by applying a force on the outer surface of the filter that is greater than the force normally applied during smoking, such as twisting or pressing the filter. In order to increase the destruction rate of the flavor particles, a disintegration-accelerating agent, which is crystal sugar and table salt, which is harder than the flavor particles, may be added. In conclusion, these products allow smokers to enjoy a flavored cigarette or authentic cigarette without destroying flavor particles. While this invention can be considered a great leap forward in the cigarette flavor industry, a major problem with filter tips, including cavities filled with flavor particles in the center, is that the particles often stick together to increase draw resistance have. Therefore, such cigarettes are difficult to smoke, and consumers are not interested in such products themselves.

U.S. Patent Application No. 2005/0070409 Al, titled " Method and Apparatus for Incorporating Objects into a Cigarette Filter ", discloses a new concept of mechanically incorporating each object into a cigarette filter. The final filter rod holds an object such as a flavor-containing capsule embedded in a mesh filter.

Thus, if a cigarette is provided that is provided with a filter that provides a certain level of protection while adding the desired flavor to the natural flavor of the cigarette smoke, enhancing its overall essence, and providing a better and subtle aftertaste Lt; / RTI > In practice, the techniques provided in the prior art often often have to overfilter the smoke to the point where the taste changes, and then have to be redirected through the passage of the second filter containing the flavor. These inventions are not only complicated, but most of them result in a reduction in the overall quality, taste and aftertaste of tobacco smoke and cigarettes.

Summary of the Invention

The present invention provides a cigarette smoke enhanced filter rod comprising various tobacco smoke enhanced plant flavor particles and produced in various ways, as means for enhancing cigarette smoke in a smoking article. Indeed, the tobacco smoke enhanced filter rod of the present invention consists of a filtration region in which tobacco smoke enhanced plant flavor particles are present. The tobacco smoke enhanced plant flavor particles may be embedded or embedded in the cavity of the filter. The filtration zone is made of a material selected from cellulose acetate tow, cellulose acetate web, and paper. This filter material can be dyed to match the color of the tobacco smoke enhanced plant flavor particles. The tobacco smoke enhanced plant flavor particles are selected from the group consisting of mint, vanilla, peppermint, anise, basil, laurel, cardamom, cinnamon, coriander, cumin, ginger, nutmeg, Beefsteak plant, curcuma, oregano, paprika, rosemary, saffron, sage, thyme, vanilla, lavender, licorice, coffee, tea, eucalyptus, Selected from the group consisting of turmeric, sandalwood, cilantro, rose, bergamot and orange flowers and the like, and finely chopped flavoring plants Particle. The mint particles may be selected from the group consisting of the following mint varieties: Mentha Arventis , Mentha cv , Mentha niliaca , Mentha piperita , Mentapiperita citrataria Mentha piperita citrata cv , Mentha piperita cv , Mentha spicata crispa , Mentha cardifolia , Mentha longifolia , Mentha beverages , May be selected from Mentha suaveolens variegata , Mentha pulegium , Mentha spicata var . And Mentha suaveolens . In addition, the tobacco smoke enhanced plant flavor particles may be a combination of menthol and / or essential oils and / or natural flavor plant particles blended with one or more components thereof. Tobacco smoke enhanced plant flavor particles are prepared by chopping plant parts such as leaves and / or stems into sizes of 10 to 80 mesh. The tobacco smoke enhanced filter rod is made according to one preferred embodiment by uniformly spraying an appropriate amount of tobacco smoke enhanced plant flavor particles in a tow moving laterally on a mechanical support. The tow used in the manufacture of this filter is a laterally wide tow and the application of the tobacco smoke enhanced plant flavor particles is carried out by passing the tow through the device at a constant rate below the device for dispensing the particles. Then, the particle-sprayed tow is made into a thin rod bundle, coated with wrapping paper (plug wrap), and then cut into a rod of a predetermined size to produce a cigarette smoke enhanced filter rod. The final filter rod consists of segments of a cigarette smoke enhanced plant flavor particle embedded in the filter material or segments of a regular filter material that are continuously bonded with segments of a filter material embedded in a cigarette smoke enhanced particle Complex. ≪ / RTI > In addition, according to a second preferred embodiment, the tobacco smoke enhanced filter rod is also produced by filling a cavity between two segments of a regular filter material with tobacco smoke enhanced plant flavor particles. In addition, the filter rod may include a plurality of segments, and some of these segments may be filled with other particles such as charcoal and resin.

The rod is then immersed in the smoking article, i.e. the filter is wrapped around the axially aligned two portions of the tobacco rod, which is the cylindrical rod of the smoking filling material, tobacco rod.

For purposes of the present invention, the following terms are defined as follows.

The term "cigarette material load" or "cigarette material" as used herein refers to a portion of a smoking article that is simply contained within a substantially non-combustible wrapper and should not involve any association with combustibility, Means a portion of each constituent member.

As used herein, the term "carbon" can be taken to include materials that are substantially only carbon and any carbon precursors, such as carbonaceous materials. As used herein, the term "carbonaceous" includes materials that are pyrolyzed, and preferably contain carbon where some incomplete combustion products may be present as such. For example, the rapidly pyrolyzed coconut fiber can be a carbonaceous material from which the carbon is derived.

As used herein, the term "smoking material" means any material that can be used in a smoking article. This does not necessarily mean that the material itself is a substance that maintains combustion. Smoking materials are usually produced in sheets and then cut. The smoking material may then be blended with other materials to produce a smoking filling material.

The term "tobacco smoke enhancement" refers to the ability to provide improved characteristics to the smoke of a smoking article. This characteristic can be caused by the presence of specific particles in the filter of the smoking device, depending on the type of particles, the smoke can be smelled when passing through the filter, improving the aftertaste quality and adding a refreshing taste.

By "tobacco smoke enhanced plant flavor particles" is meant a complex of natural flavorful plant particles and natural flavorful plant particles blended with menthol and / or essential oils.

The expression "flavor" refers to a flavor produced by the tobacco smoke-enhanced plant flavor particles when they are drawn through a filter embedded in the cigarette smoke to produce a flavor or deodorant, Means the ability of the flavor particles to alter.

The term "smoking article" means a device for smoking a cigarette in which a rod of smoking material is enclosed in a circumscribing material connected to the filter by a wrapping material. These smoking articles produce smoke that is drawn through the filter upon ignition. Such smoking articles include cigarettes, cigars, and small cigarettes. Other tobacco products include tobacco, tobacco substitutes, and substitute smoking products that do not smoke or burn.

The term "natural flavored plant particles" refers to particles of all flavorable plant parts that can be used to add flavor to the smoke of a smoking article. Such fragrant plant parts include, but are not limited to, flowers, seeds, fruits, leaves, stems and roots.

Smoking article structure

The length of the smoking material rod is advantageously at least 60 mm, and the number of puffs of the rod when smoking under smoking conditions of a standard machine is preferably 6 or more, more preferably 7 or more. It is preferable that the rod has a uniform cross-sectional shape and dimensions along the length of the rod.

filter

The smoking article advantageously comprises a filter element, which may be conventional fibrous cellulose acetate, polypropylene or polyethylene material or corrugated paper material. Also, a plurality of filter members may be used. Filter members with special pressure drop characteristics, such as filters sold by Filtrona and known as The Ratio Filter, may also be used. The above-mentioned flavor material, which is emitted or eluted from the filter member by the aerosol generated by the heating or combustion aerosol generating means, can be additionally disposed on or in the material of the filter member.

Further, the filter member may further contain a particulate material such as granular carbon, which is suitably activated carbon. The activated carbon is preferably activated coconut. The filter containing the particulate material may be, for example, a dual filter comprising a cellulose acetate mouth zone and a dalmatian rod at the tobacco end of the filter. The paper zone may form part of a multiple filter. Alternatively, the filter may be a filter fabricated according to the structural design of the filter known as Active Patch filter (Filtrona International product) as described in British patent specification 2249936. According to yet another alternative embodiment, the filter element may be a cavity filter comprising a central cavity containing a granular material and two end zones.

Such a filter element may be an optional removal filter as described in co-pending U.S. Provisional Patent Application Serial Nos. 60 / 309,388 and 60 / 309,435, both filed on Jan. 1, 2001.

The filter plug located at the mouth end can be made of a variety of materials such as cellulose acetate tow, cellulose, paper, cotton, polypropylene web, polypropylene tow, polyester web, polyester tow or a composite thereof.

In addition, the pressure drop and / or mechanical filtration efficiency of the filter plug section may be selected to achieve the desired smoking dynamics and filtration characteristics that may be required in the design of the desired specific product.

Another filter structure that may be useful in the present invention is described in the co-pending international patent application PCT / GB02 / 005603 of the present applicant. The grooved arrangement of the filter described here allows the ventilated air to flow into the groove extending toward the end of the cigarette end and then toward the mouth end. As a result, the CO / tar ratio decreases. Upon incorporation with the particulate additive to selectively remove the vapor phase, significant reduction of the vapor phase constituents can be achieved.

It is highly preferred that the first part of the cigarette smoke filter contains an adsorbent material. The adsorbent material is preferably a conventional adsorbent. Typically, the adsorbent material is preferably selected from the group consisting of a relatively large surface area material, such as activated carbon, capable of adsorbing various chemical compounds without a high degree of specificity.

The second part of the tobacco smoke filter of the present invention more preferably comprises a conventional tobacco smoke filtering material. Suitable conventional materials include cellulose acetate, paper, polypropylene, and other materials known to those skilled in the art that can hold at least some of the particulate phases of tobacco.

Preferably, the first and second portions of the cigarette smoke filter of the present invention are arranged in a co-axial alignment.

Wrapper

The wrapper wrapping the smoking article may comprise a combustion additive such as sodium citrate and / or potassium citrate. Other suitable combustion additives are sodium or potassium salts such as acetate and tartrate; Monoammonium phosphate and disodium hydrogen phosphate and the like are known to those skilled in the art. Advantageously, the combustion additive is present in the range of 0.5 to 2.5 wt% of the wrapper. The wrapper may also have a basis weight in the range of 20 to 40 g / m < 2 >.

The wrapper of the smoking article may alternatively or additionally be a non-papaer wrapper, examples of which are the wrappers described in International Patent Application Publication Nos. WO 96/07336 and WO 01/41590. These wrappers help reduce the sidestream components of the cigarette smoke, but still provide smoking articles that have similar burning and shedding characteristics to conventional products. That is, the wrapper allows the smoking article to be burned and fractionated in a manner similar to a conventional product.

The wrapper may suitably be a substantially non-combustible wrapper or paper wrapper as described in WO 96/07336. The major constituent elements of the above application relating to a substantially non-combustible wrapper are incorporated herein by reference. It is advantageous for the wrapper to contain 65% or more of the inorganic particulate filler material such as the above-mentioned inorganic material.

Typical cellulosic pulp paper wrappers may have a permeability in the range of 2-300 CU, preferably less than 100 CU. Such wrappers may also be, for example, paper containing less than 14% magnesium oxide or magnesium hydroxide and less total filler amount as disclosed in European Patent Application No. 0 404 580. [

Smoking material

The smoking substance is preferably a tobacco substance. The tobacco material suitably comprises one or more of stems, laminas, tobacco flours. The tobacco material preferably comprises one or more of the following: Virginia or yellow leaf tobacco, Burleys tobacco, Orient tobacco, and tobacco. It is even more desirable that the smoking article comprises a blend of tobacco materials. Advantageously, the smoking article comprises 10 to 80% Virginia cigarette, 10 to 60% burley tobacco, 0 to 20% orient cigarette, 0 to 120% recycled tobacco and 0 to 30% expanded tobacco.

The smoking material of the smoking article according to the present invention is preferably composed of a tobacco-containing or cut-off tobacco, and a certain percentage thereof may be an expanded tobacco. The smoking material may be a recycled cigarette or a cigarette substitute.

In addition, the smokable material may further include a combustion additive for enhancing the smokability of the material to be filled. Depending on the nature of the filler, the combustion additive is a combustion promoter or combustion retardant. Suitable combustion additives may be selected from one or more salts of Group I or Group II metals, such as acetate, citrate, and other combustion promoters known to those skilled in the art. Suitable flame retardants include, for example, magnesium hydroxide, monoammonium phosphate or magnesium chloride.

In addition, the smokable filler material may further comprise an ash improver, which is advantageously present in the filler in the range of 0 to 5%. Suitable batch aids include at least one of mica, pearlite, clay such as vermiculite, kaolinite, talc, saponite, bentonite, as well as a disintegrating agent such as disodium hydrogen orthophosphate, sodium carbonate or diammonium phosphate.

Inorganic filler

The inorganic filler may be selected from the group consisting of pearlite, alumina, diatomaceous earth, calcium carbonate (chalk), vermiculite, magnesium oxide, magnesium sulfate, zinc oxide, calcium sulfate (gypsum), ferric oxide, pumice, titanium dioxide, calcium aluminate or other insoluble aluminates , Or other inorganic filler material. The density range of this material is suitably in the range of 0.1 to 5.7 g / cm3. It is advantageous for the inorganic filler material to have a density of less than 3 g / cm3, preferably less than 2.5 g / cm3, more preferably less than 2.0 g / cm3, even more preferably less than 1.5 g / cm3. An inorganic filler having a density of less than 1 g / cm 3 is preferable. Low density inorganic fillers reduce product density and improve batch properties.

Organic filling material

In addition, the smoking-filling material may comprise an organic filler. It is advantageous that the organic filler material is inert or relatively inert when it is singly used, i.e., it is not easy to maintain combustion, but it is more combustible when the mixture is mixed, that is, it is advantageous to maintain combustion. Suitable organic fillers include insoluble alginates such as calcium or magnesium alginate, calcium pectinate or alginic acid, as well as unmodified celluloses such as treated or untreated wood pulp or alpha cellulose. Mixtures of inert organic fillers and inorganic fillers may also be used.

Aerosol generating means

It is preferred that the aerosol sources include aerosol forming means such as glycerol and / or other aerosol forming compounds exemplified in the Applicant's co-pending PCT application WO96 / 07336. Examples include polyhydric alcohols, propylene glycol and esters such as triethylene glycol, triethyl citrate, triacetin or triethylene glycol diacetate (TEGDA), or higher boiling hydrocarbons. Other suitable aerosol forming means will be known to those skilled in the art.

Binder

If the binder is a mixture of an alginate and a non-alginate binder, it is advantageous that the binder comprises at least 50%, preferably at least 60%, more preferably at least 70% of the alginate. The required amount of binder to be incorporated can be moderately reduced when a non-alginate binder is used. The amount of alginate in the binder formulation is advantageously increased when the amount of binder incorporated decreases. Suitable alginic binders include soluble alginates such as ammonium alginate, sodium alginate, sodium calcium alginate, calcium ammonium alginate, potassium alginate, magnesium alginate, triethanolamine glycinate and propylene glycol alginate. Other organic binding systems such as cellulosic binders, gums or gels may be used with the alginic binder. Suitable cellulosic binders include cellulose and cellulose derivatives such as sodium carboxymethylcellulose, methylcellulose, hydroxypropylcellulose, hydroxyethylcellulose ether. Suitable black gum arabic, ghatti gum, tragacanth gum, karaya, locust bean, acacia, guar, corn seeds or xanthan gum. Suitable gels include agar, agarose, carrageenan, furoidan and furcellaran. In addition, starch can also be used as an organic binder. Other suitable black handbooks, such as Industrial Gums and E. Whistler (Academic Press) can be selected with reference.

coloring agent

Coloring agents such as food dyes, or coloring agents such as licorice, caramel or malt or malt extract may be used to darken the color of the filling material. The presence of vermiculite or other inorganic substances such as iron oxide can also provide a dark color to the filling material of the smoking article.

Suitable colorant materials include cocoa, licorice, caramel, chocolate or toffee. A finely divided, granular or homogenized cigarette may also be used. It is also possible to use industry approved food coloring agents such as E150a (caramel), E151 (Brilliant Black BN), E153 (vegetable carbon) or E155 (brown HT) Other exterior materials may also be suitable. Alternatively, the presence of vermiculite or other inorganic filler material may provide a dark color to the smoking material.

The colorant is preferably present at 0 to 10% and may be present at about 5 to 7% by weight of the final smoking material. It is advantageous that the colorant is less than 7%, preferably less than 6%, more preferably less than 5% of the final smoking material. It is more preferable that the coloring agent is used in an amount of less than 4%, less than 3%, and less than 2%. Cocoa is suitably present in the range of 0 to 5% by weight of the final smoking material, and licorice may be present in the range of 0 to 4% by weight. When the colorant is cocoa or licorice, for example, the minimum amount of cocoa to obtain the desired sheet color is about 3% based on the weight of the final smoking material and the licorice is about 2%. Similarly, it is preferred that the caramel be present in the range of 0 to 5%, preferably less than about 2%, and more preferably about 1.5%, based on the weight of the final smoking material. Other suitable coloring agents include molasses, malt extract, coffee extract, tea resin mimetics, St. John's Bread, prune extract or tobacco extract. Mixtures of colorants may also be used.

A series of tests evaluating the smoking properties and overall water solubility of cigarettes made with the cigarette smoke enhanced filter on smokers panel showed favorable results compared to existing commercial products. Compared to menthol-like cigarettes made from natural menthol crystals or synthetic menthol crystals, the present invention provides a number of advantages. Indeed, tobacco smoke enhanced plant flavor particles, such as mint particles embedded or embedded in the cavity of the filter, are provided [which are simply referred to as particles in the filter and can be embedded in the filter material itself or provided in the cavity of the filter , The mint flavor and refreshing taste and aftertaste are provided in the smoke when passing through the filter as compared to the excessively intense flavor and cool aftertaste of the menthol flavor product.

According to the present invention, a cigarette smoke enhancing filter rod for use in a smoking article is provided through a connection to a tobacco rod. Such a cigarette smoke enhanced filter rod comprises cigarette smoke enhanced plant flavor particles embedded or embedded in the cavity of the filtration zone, wherein the cigarette smoke enhanced plant flavor particles comprise flavor plant particles and / or flavor plant particles Menthol and / or essential oils and / or blends of one or more components thereof.

According to one aspect of the present invention, the dry particles to be buried in the filtering region of the cigarette smoke enhancing filter are particles of a predetermined size and selected from all mint variants. Known mint variants include Mentha Arventis , Mentha cv , Mentha niliaca , Mentha piperita , Mentha piperita citrata cv , Mentha piperita cv , Mentha spicata crispa , Mentha cardifolia , Mentha longifolia , Mentha suaveolens variegata , and the like. Mentha pulegium , Mentha spicata cv , and Mentha suaveolens . A preferred mint variant used in accordance with the present invention is menta aventis.

According to another aspect of the present invention, the type of material used in the filtration region of the cigarette smoke enhanced filter is selected from any cellulose acetate tow, cellulose acetate web, and paper. A preferred material for use in the present invention is cellulose acetate. The filtration material is usually in the form of a fibrous tow, but may be in the form of a corrugated sheet in the case of other physical forms, such as paper.

According to another aspect of the present invention, the kind of the smoking article attached to the cigarette smoke enhancing filter can be selected from cigarettes, cigars, and small cigarettes.

Hereinafter, the present invention will be described with respect to various stages of production of a final product including tobacco smoke enhanced plant flavor particles, a cigarette smoke enhanced filter rod, and a method of manufacturing a smoking article containing such a filter.

The tobacco smoke enhanced plant flavor particles consist of flavorful plant particles or flavored plant particles blended with menthol and / or essential oils and / or one or more components thereof. The primary purpose associated with plant particles used in place of artificially purified preparations in tobacco smoke enhanced filter rods is to provide the consumer with natural flavorings, either alone or with menthol and / or essential oils and / or one or more components thereof, Taste and an improved aftertaste. Plant particles include all available parts of a selected plant, such as roots, leaves, flowers, stems or shoots. These parts are collected and dried, then finely chopped to the appropriate size to be buried in the filter rod. The preferred humidity percentage of the particles to be incorporated is between 10% and 20%, while the general humidity range of the cigarette is between 10% and 14%, which is either dry or not dry or obtained in the liver. According to one preferred embodiment, natural mint particles are used to add flavor to cigarette smoke. A variety of studies comparing the use of natural mint particles to filters in smoking devices have been conducted and compared to commercially available menthol cigarettes. First, loading, flavor retention, and overall taste were investigated when natural greenhouse and field mint particles were incorporated into the filter for a prolonged period of time. These tests have proven that natural mint particles provide a different flavor than flavored products that are already on the market. In addition, the characteristic taste and aftertaste of natural mint, which is the result of mixing many ingredients, provides fresh taste and improved aftertaste compared to the strong cooling effect of the current menthol product.

The flavorant particles can be incorporated into the filter rod through a variety of techniques, and the particles can be contained within the cavity of the filter rod or applied over and / or within the filter material.

The "dalmatian type filter" can be manufactured according to a known technique. For example, a "Dalmatian filter" is composed of a filter material through which tobacco smoke enhanced plant flavor particles are spread, folded and wrapped in lapping material. There are a number of steps involved in deriving this concept filter: first, the filter material is wound on a roll that is drawn continuously. The laterally broad planar material is directed to the tobacco smoke enhanced particle dispersion zone by the mechanical support. A hopper is provided on the rotary dispersion roller, and a guide case is provided in front of the hopper. The tobacco smoke-enriched plant flavor particles supplied to the hopper are uniformly applied to the filter material continuously fed below the rotating dispersion rollers. One important point to note here is that filter materials sprayed with tobacco smoke enhanced plant flavor particles can be dyed for aesthetic reasons.

After the dispersion of the particles is completed, the filter material is led to the second zone where the folding operation is carried out. A filter material folding zone is used to fold the filter material. A retainer plate protruding from the body of the machine is provided horizontally above the other upper surface of the receiving plate protruding from the body of the same machine through a gap corresponding to the thickness of the filter material. A pair of curved rods which are obliquely in close contact with each other at the front surface of the retainer space are provided on the mount rod projecting from the main body of the machine. The curved portion of each rod is provided to press down the positive edge portion of the filter material. A pair of clamping plates are provided on both sides of the upper surface of the retainer plate for clamping, folding and gathering at the center of the edge and are lowered downward and pressed inward by the curved portion of the curved rod have. The clamping foil is arranged to intersect with each other, the distance between the clamping foil and the retainer plate increases toward the rear and the opposing edges are pulled inward to each other by the supply of material. At the same time, the edge portions overlap to form an overlapped portion supplied in this state. Thus, the opposing edges of the filter material surround the tobacco smoke enhanced plant flavor particles and are directed to the sleeve portion of the forming section. After the filter material is introduced into the sleeve portion, it is collected into a fine rod-like bundle containing buried particles and then coated with a porous or non-porous wrapping paper (plug wrap). The filter is then cut into rods of a predetermined length in the cutter zone.

The filter may also be formed as a composite, physical form, and / or composition of segments of the various filter materials in which tobacco smoke enhanced plant flavor particles are present at various locations along the length of the rod. Such a structure can provide a variety of advantages over an ordinary " Dalmatian filter "in terms of overall appearance and draw resistance. These special filter rods are made of two segments alternately present in the rod and held together by wrapping paper. In practice, two to five segments of filter material or usually filter material embedded with flavor particles are connected in series in the rod, and depending on the total number of segments, a "dual dalmatian filter "," Are known as "Quadratic Dalmatian type filter" and "Fivefold Dalmatian type filter ". These filters may be symmetric when the segments are all the same size, or asymmetric if the two or more segments are of different lengths.

The first type of segmented filter rod is a "dual dalmatian type filter" that normally includes segments of the filter material as well as segments of the filter material in which the tobacco smoke enhanced plant flavor particles are embedded. The segment of the filter located adjacent to the tobacco rod is a segment embedded with tobacco smoke enhanced plant flavor particles to add flavor to the drawn tobacco smoke whereas the segment located at the inboard end is usually made of a filter material and the tobacco smoke enhanced plant flavor There is no step of spraying the particles, but it is produced exactly as a "Dalmatian filter". This structure is interesting for two reasons. First, the presence of segments of the filter material usually at the mouth end of the cigarette prevents the tobacco smoke enhanced plant flavor particles from falling off the cigarette while the consumer is handling it.

The second type of segmented filter rod consists of a "triple moon-shaped filter rod ". This type of filter includes two or three different segments and one configuration option is as follows: the tobacco rod and the segments adjacent to the mouth end are both usually made of a filter material, Is made of a filter material embedded with tobacco smoke enhanced plant flavor particles. Thus, when the cigarette smoke passes through the filter, the flavor becomes more pronounced, and the appearance of the product is usually the same as that of the cigarette.

Another type of filter is a triple moon-shaped filter in which the segments at the mouth end are ordinary filters, the middle segments are mapped particles, and the tobacco rod segments are, among other things, filled with charcoal and / or resin particles.

One variant of the triple filter is distinguished from the "triple moon-shaped filter rod" described above. Indeed, a "cavity filter" is considered as a filter rod in which two segments are separated by a cavity containing tobacco smoke enhanced plant flavor particles, which serves as an alternative for adding the aroma of cigarette smoke. Thus, instead of the two normal segments being separated by the embedded segments of the particles, the segments are separated by the tobacco smoke enhanced plant flavor particles of pure glass inserted into the cavity of the filter. This structure will appeal to consumers because the appearance of the product is the same as that of a normal cigarette and has an interesting flavor.

"Quadruple Dalmatian filter" and "Quintet dalmatian filter" refer to a morphology option according to one aspect of the present invention, consisting of alternating filter material and four or five segments of quartz- Lt; / RTI > The filter rod is provided with various segments in the filter rod such that there is usually a segment of the filter material at the mouth end. The presence of various segments in the filter rod allows the consumer to provide a variety of products. Indeed, the various segments into which the tobacco smoke enhanced plant flavor particles are embedded can be made using various or the same tobacco smoke enhanced plant flavor particles and / or above all charcoal and resin. Thus, the final product provides a smoke characterized by a more concentrated flavor of smoke or flavor blend, allowing better control of taste and aftertaste.

As evidenced above, various smoking articles can be attached to this kind of filter, and the procedure is as follows. A smoking article is manufactured by filling a smoking rod-like cylindrical rod with a smoking material. These materials consist of a blend of finely divided tobacco, which may normally vary in composition, and the existing variants are yellow, verrule, Orient, Maryland, dark, dark fire and rustica tobacco, There are rare special cigarettes. The external wrapping materials of the tobacco rod may vary in composition and properties. One end of the tobacco rod is a fire end, and the other end is adapted to be coupled to the filter. The filter and the tobacco rod are made of similar diameters and are attached to each other by an axially aligned post tipping material that abuts the end and the end. Filter ventilation can be accomplished through pre-drilled tipping or on-line laser drilling.

Although the present invention has been described in connection with specific embodiments, it is to be understood that the present invention is not limited to the specific embodiments described herein, It is to be understood that the invention is intended to cover any variations, uses, or adaptations of the invention, including departures from the teachings of the present invention, which may be applied to the components and which follow the scope of the claims.

Claims (38)

A filtration zone containing a filter material; And Particles of mint plant leaves or particles of mint plant stems or particles of mint plant leaves and stalks dispersed in the filter material, Lt; / RTI > Wherein the natural tobacco smoke enhanced plant flavor particles are finely divided into plant flavor particles embedded in the filter region, Cigarette smoke enhanced filter rod. The tobacco smoke enhanced filter rod according to claim 1, wherein the plant flavor particles are a mixture of menthol, essential oil, or natural flavor plant particles blended with menthol and essential oil. The tobacco smoke enhanced filter rod of claim 1, wherein the filtration region is made of a material selected from cellulose acetate tow, cellulose acetate web, and paper. The tobacco smoke enhanced filter rod of claim 3, wherein the tobacco is dyed. delete A smoking article comprising a cigarette smoke enhanced filter rod comprising one segment of a filtration region having embedded cigarette smoke enhanced plant flavor particles according to any one of claims 1 to 4 connected in series to a tobacco rod. A tobacco smoke enhanced filter rod consisting of one segment of a filtration region and one segment of a filter material embedded in tobacco smoke enhanced plant flavor particles as claimed in any one of claims 1 to 4 is continuously connected to a tobacco rod The smoking article. 8. The article of claim 7, wherein the segments of filter material are located at the mouth end. A cigarette smoke consisting of a complex of fragments of the filtration zone in which the tobacco smoke enhanced plant flavor particles according to any one of claims 1 to 4 are embedded alternately with segments of filter material in which other particles are embedded or unfilled A smoking article in which a reinforcing filter rod is continuously connected to a cigarette rod. 10. A smoking article according to claim 9, wherein the other particles are selected from charcoal, resin and plant particles. 10. A smoking article according to claim 9, wherein the combination of segments of the tobacco smoke enhanced filter rod and the segments of the filter material are alternately associated with three, four or five segments. A method of producing a tobacco smoke enhanced filter rod according to claim 1, Spraying the tobacco smoke enhanced plant flavor particles uniformly over a tow moving laterally on the mechanical support, and Then shaping the tow into a filter rod Lt; / RTI > The tobacco smoke enhanced plant flavor particles are particles of mint plant leaves, or particles of mint plant stems, or particles of mint plant leaves and stems, A method of producing a cigarette smoke enhanced filter rod. 13. The method of claim 12, wherein the step of shaping the tow into a filter Shaping the sprayed tow into a thin rod bundle, Cutting the bundle into segments of a predetermined size, Forming the segments in a predetermined shape and then coating the segments with a wrapping paper, and And cutting it into a filter rod of a predetermined size ≪ / RTI > 14. The method of claim 13, wherein the manufacture of the segment To produce a single segment of filter material with tobacco smoke enhanced plant flavor particles embedded therein; or The step of producing a composite of segments of filter material in which tobacco smoke enhanced plant flavor particles are embedded and segments of other particle-embedded or unfilled filter material ≪ / RTI > The production method according to claim 13, wherein an appropriate amount of the tobacco smoke enhanced plant flavor particles is in the range of 20 mg to 150 mg per filter tip. delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete delete