TW201826950A - Cigarette with a filter - Google Patents

Abstract

This invention provides a cigarette with a filter having a tobacco rod portion, a filter portion, and a wrapping paper for filter for wrapping an external surface of the filter portion. The filter portion is composed of two or more filter sections. At least one of said filter section that doesn't contact the tobacco rod portion has a solution added therein, the solution including polyol, water, and thickener. The polyol only consists of a liquid polyol having a flakes affinity of 22.0 or less.

Description

 Cigarette with filter  

The present invention relates to a cigarette with a filter attached thereto.

In the case of using a cigarette with a filter, the research and development of the function of removing only unnecessary components in the components contained in tobacco smoke during smoking are actively carried out. As a means for achieving this object, a method of adding a solution for dissolving a material for adjusting a component contained in tobacco smoke to a filter is known (for example, Patent Documents 1 to 5).

Patent Document 1 discloses that a solution containing propylene glycol and glycerin is added to a filter segment constituting a cigarette with a filter, and a specific component in tobacco smoke can be selectively removed during smoking.

Patent Document 2 describes an aqueous liquid composition containing a polysaccharide and having a viscosity in a specific range as a nicotine reducing agent for reducing nicotine contained in tobacco smoke. Further, Patent Document 2 describes a smoking device for nicotine reduction having a filter portion for holding the nicotine reducing agent.

Patent Document 3 describes a cigarette filter having a filter section in which a liquid fatty acid ester or a liquid fatty acid having a specific viscosity is added; and a filter section to which a specific viscosity (for example, propylene glycol) is added; A filter section of activated carbon is added to the downstream side of the filter sections. According to this configuration, the component in the smoke can be filtered with good efficiency compared to the case where the respective components are separately added to the filter.

Patent Document 4 describes a cigarette having a homogeneous mixture of a polyol ester such as triacetin and a polyol such as propylene glycol inside the filter. Patent Document 4 describes that a carbonaceous material for removing a plurality of gas phase components contained in tobacco smoke is contained, and the above-described homogeneous mixture is contained to improve the gas phase filtration performance of the carbonaceous material.

Patent Document 5 describes a technique in which a porous body such as a cerium oxide gel impregnated with propylene glycol and glycerin is added to a filter to change the composition of the particulate matter contained in the smoke during smoking.

 [Previous Technical Literature]    [Patent Literature]  

[Patent Document 1] Japanese International Publication No. 2015/122426

[Patent Document 2] Japanese Patent No. 3882125

[Patent Document 3] Japanese Patent No. 3910175

[Patent Document 4] Japanese Patent Publication No. 2009-507518

[Patent Document 5] US Patent Application Publication No. 2008/0110470

The solution added to the filter for cigarettes described in Patent Document 1 contains glycerin, and it is considered that the glycerin has a function of preventing volatilization of propylene glycol.

However, it is known that when a solution containing propylene glycol and glycerin is added to a filter and a cigarette is produced using the filter and stored in a package in a substantially sealed state, propylene glycol disappears from the filter during storage. Therefore, it has been clarified that after the cigarette with the filter is manufactured and stored, the selective filtering performance of the components in the smoke is lowered to obtain the desired fragrance inhaling taste.

The nicotine reducing agent described in Patent Document 2 does not describe the stability after addition to the filter.

In the technique described in Patent Document 3, the storage stability of the filter to which the specific solution is added is not described, and the filter component which is easily volatilized during storage of the filter disappears.

In the technique described in Patent Document 4, a substance contained for the purpose of adjusting a gas phase component in tobacco smoke is always a carbonaceous material (for example, activated carbon), and a polyol ester and a polyol are added, and the carbonaceous material is always used for improvement. Ventilation properties of the material.

In the technique described in Patent Document 5, the porous body is impregnated with a diluent such as glycerin, thereby reducing the contact area with the tobacco smoke.

As described above, in the technique described in each of the patent documents, the active ingredient added to the filter for selectively adjusting the components in the tobacco smoke cannot be stably settled in the filter.

Therefore, there is a problem that the active ingredient added to the filter disappears and the function of the active ingredient cannot be utilized.

In view of such circumstances, the present invention provides a cigarette with a filter capable of suppressing the reduction of the active ingredient added to the filter by selectively removing a part of the components contained in the tobacco smoke even after storage. .

As a result of intensive study by the inventors of the present invention, a cigarette with a filter having a tobacco rod portion, a filter portion, and a wrapper for a filter for wrapping the outside of the filter portion is known. The filter portion is composed of two or more filter segments, and at least one filter segment that does not contact the tobacco rod portion is added with a solution containing a polyol, water, and a tackifier, and the polyol is only The present invention has been completed by a liquid material having a cut tabacco affinity of 22.0 or less, and the filter-attached cigarette can solve the above problems.

That is, the present invention is as follows.

[1] A cigarette with a filter having a tobacco rod portion, a filter portion, and a filter-attached cigarette for wrapping a filter wrapper on the outside of the filter portion, the filter portion It is composed of two or more filter segments, and at least one filter segment that does not contact the tobacco rod portion is added with a solution containing a polyol, water and a tackifier, and the polyol is only made up of tobacco affinity. It is composed of a liquid material of 22.0 or less.

[2] The filter-attached cigarette according to [1], wherein the liquid polyol having a tobacco affinity of 22.0 or less is selected from the group consisting of 1,2-butanediol, 1,3-butanediol, and , 4-butanediol, 2,3-butanediol, glycerin, diglycerin, dipropylene glycol, tripropylene glycol, ethylene glycol, triethylene glycol, polyethylene glycol 200, polyethylene glycol 400, and polyethylene Alcohol 600.

[3] The filter-attached cigarette according to [1] or [2] wherein the polyol is composed only of a liquid polyol having a tobacco affinity of 9.0 or less.

[4] The filter-attached cigarette according to any one of [1] to [3] wherein the liquid polyol having a tobacco affinity of 22.0 or less contains 1,3-butanediol and glycerin.

[5] The filter-attached cigarette according to any one of [1] to [4], wherein the packaged paper for the filter comprises a take-up paper, a forming paper, and a filter paper, and a package The take-up paper to which the filter section of the aforementioned solution is added is made of a material containing a liquid-impermeable layer.

[6] The filter-attached cigarette according to [5], wherein the liquid-impermeable layer is formed of one or more materials selected from the group consisting of a polymer compound, a metal, and an inorganic oxide.

[7] The filter-attached cigarette according to [5], wherein the material for forming the liquid impermeable layer is selected from the group consisting of polyethylene, polypropylene, polystyrene, cellulose, cellulose acetate, polytetra Vinyl fluoride, polyoxydimethyl sulfoxide, polyvinyl acetate, polyvinyl chloride, polymethyl acrylate, polymethyl methacrylate, natural rubber, polybutadiene, and copolymers thereof, aluminum, oxidation One or more of aluminum and cerium oxide.

[8] The filter-attached cigarette according to [5], wherein the take-up paper that wraps the filter section has one of the first end portions extending in the axial direction of the filter section. The region and the second end portion are formed into a cylindrical shape by joining the first end portion region and the second end portion region, and the inner surfaces of the first end portion region and the second end portion region are formed to face each other The overlapping palm portion is folded back toward the wrap portion side of the filter segment while adjoining the palm portion, and is fixed while covering the wrap portion.

[9] A cigarette package, which is filled with a filter-attached cigarette according to any one of [1] to [8], in a substantially sealed state.

According to the present invention, it is possible to provide a filter-attached cigarette which can suppress the addition of an active ingredient added to the filter for selectively removing a part of the components contained in the tobacco smoke even after storage.

1‧‧‧Tobacco rod

2‧‧‧Filter filter

4‧‧‧Winding paper

5‧‧‧ molding paper

6‧‧‧ Filter paper

7‧‧‧ Filter section

9‧‧‧Binder

10‧‧‧solution

41‧‧‧Substrate

42‧‧‧Liquid-impermeable layer

43‧‧‧1st end area

44‧‧‧2nd end area

45‧‧‧With the palm

46‧‧‧Adjacent package department

Fig. 1 is a schematic view showing a first configuration example of a cigarette with a filter according to the present invention.

Fig. 2 is a schematic view showing a second configuration example of the filter-attached cigarette of the present invention.

Fig. 3 is a schematic view showing a third configuration example of the filter-attached cigarette of the present invention.

Fig. 4 is a cross-sectional view showing an embodiment of a filter section of a filter-attached cigarette of the present invention.

Fig. 5 is a graph showing the results of measurement of the amount of polyol remaining in the cigarette with the filter after storage.

Fig. 6 is a graph showing the rate of change of the components in the smoke test conducted by the filter using the additive solution before and after storage.

Fig. 7 is a graph showing the results of comparing the filtration ability of the components of 1,3-butanediol with propylene glycol.

In the following, the present invention is not limited by the scope of the present invention, and the present invention is not limited by the scope of the present invention.

<Cigarette with filter>

The filter-attached cigarette of the present invention can adopt a well-known configuration in addition to changing a part of the filter portion. For example, the tobacco stem portion may be formed by wrapping a normal tobacco filler such as cut tobacco with a tobacco wrapper, and a filter attached to one end of the tobacco rod portion. state.

The moisture content of the usual tobacco filler such as cut tobacco which is included in the tobacco rod portion is preferably 10 to 15% by weight, and more preferably 11 to 13% by weight. In the case of such a moisture content, it is possible to suppress the occurrence of the wrap-around spot of the package described later, and it is possible to improve the roll-up suitability at the time of manufacture of the cigarette with the filter.

The outside of the filter can be exemplified by the use of a wrapper as a wrapper for a filter and a wrapper for a wrapper. The use of the take-up paper roll package is detailed below.

In the filter-attached cigarette of the present invention, a specific solution is added to at least one of the filter sections constituting the filter portion in the following aspect.

For the filter portion, well-known materials can be appropriately used in any of the sections. For example, an acetate fiber bundle is used as a material. The single yarn fineness, the total fineness, and the cross-sectional shape of the acetate fiber bundle are not particularly limited.

Further, the adjustment of the ventilation resistance and the addition of an additive (a well-known adsorbent, a fragrance, a fragrance holding material, etc.) can be appropriately designed in any material.

The wrapper for a filter according to the present invention is a general term for wrapping a filter paper, which is used for a cigarette attached to a filter, as a filter paper, a forming paper, and a take-up paper. Here, the take-up paper is used to directly contact the filter fiber bundle and wrap it into a cylindrical shape. When the forming paper is present in a plurality of filter sections of the take-up paper roll, the user is fixed in order to fix a plurality of filter sections. The filter paper is used to connect the tobacco rod to the filter portion.

When a material composed of a material containing a liquid impermeable layer, which is described later, is used as the wrapper for the filter, a well-known material can be used.

<Embodiment 1>

According to a first aspect of the present invention, there is provided a filter-attached cigarette comprising a tobacco rod portion, a filter portion, and a wrapper for filtering the outer surface of the filter portion, wherein the filter portion is added There is a solution containing a polyol, water, and a tackifier, and the polyol is composed only of a liquid having a tobacco affinity of 22.0 or less.

By containing a polyol composed of a liquid material having a tobacco affinity of only 22.0 or less in the solution, it is possible to select predetermined components such as phenols, pyridines and pyrazines which are contained in the smoke at the time of smoking when smoking. Sexual removal.

The propylene glycol added to the solution of the filter described in Patent Document 1 is known to be volatilized after being stored in a state in which the filter-attached cigarette having the filter is packed in a package. According to the study by the present inventors, it was found that the propylene glycol added to the solution of the filter migrated to (adsorbed) the shredded tobacco during storage in the package in a substantially sealed state. Further, it is presumed that the action of propylene glycol to reach a saturated vapor pressure in the package causes the propylene glycol to further volatilize in the package while moving to the shredded tobacco, thereby causing the disappearance of propylene glycol from the filter.

On the other hand, the liquid polyol used in the present invention is composed of only a tobacco having a tobacco affinity of 22.0 or less, and is provided with a filter having a solution containing a solution containing the polyol. The cigarette of the mouth is stored in a state of being packed in a package in a largely sealed state, because the polyol does not easily migrate to (adsorb) the shredded tobacco, so the polyol can be maintained after reaching a substantially saturated vapor pressure in the package. In the equilibrium state, the polyol in the filter is not easily volatilized outside the filter.

It is considered that it is possible to prevent the polyol from disappearing from the filter of the cigarette with the filter.

Further, the so-called cut tobacco affinity in the present invention does not simply depend on the vapor pressure of the polyol added to the filter. As disclosed in the examples below, the vapor pressure of the polyol and the tobacco affinity are not necessarily related to each other.

Further, the so-called cut tobacco affinity in the present invention is determined according to the following test, and the tobacco affinity of the polyol which can be used in the present invention is 22.0 or less. By the tobacco affinity of 22.0 or less, even a cigarette with a filter having a filter to which the polyol is added is packaged in a package in a substantially sealed state, because the polyol does not easily migrate to the cut tobacco. Therefore, it is possible to prevent the polyol from volatilizing from the filter.

Further, the polyol having a cut tobacco affinity of 9.0 or less is used in the storage of a cigarette having a filter to which the polyol is added, in addition to the above-described small amount of volatilization from the filter, since the polyol migrates to The shredded tobacco is less, and it is superior in that it does not cause the roll of the roll. The roll of the roll refers to the pigment component in the cut tobacco from the tobacco through the polyol to the wrapped paper of the tobacco rod. The paper produces spots.

Examples of the liquid polyol having a cut tobacco affinity of 22.0 or less include 1,2-butanediol, 1,3-butanediol, 1,4-butanediol, 2,3-butanediol, and glycerin. Diglycerin, dipropylene glycol, tripropylene glycol, ethylene glycol, triethylene glycol, polyethylene glycol 200, polyethylene glycol 400, polyethylene glycol 600. Further, in the case of polyethylene glycol, solid matter is not used in the present invention. The "liquid state" referred to in the present invention is in a state of 22 °C.

Further, the liquid polyol may be used in combination of two or more kinds as long as the tobacco affinity is 22.0 or less.

Among the above liquid polyols, those having excellent selective absorption ability as components in the smoke include 1,3-butanediol, dipropylene glycol, tripropylene glycol, triethylene glycol, polyethylene glycol 200, and poly Ethylene glycol 400, polyethylene glycol 600, and 1,4-butanediol are preferred, and 1,3-butanediol and glycerin are preferably used. When 1,3-butanediol is used, it may be used singly or in combination with other liquid polyols having a tobacco affinity of 22.0 or less. For example, a form in which 1,3-butanediol is used in combination with glycerin can be suitably used.

When glycerin is used, the above-exemplified products other than 1,3-butanediol may be mentioned, and more specifically, the affinity with cut tobacco is 22.0 or less, and preferably the cut tobacco affinity is 9.0 or less. The combination of things used.

Further, as a substance having a sufficiently low tobacco affinity and a selective adsorption ability of a component in the smoke, 1,3-butanediol, tripropylene glycol, 1,4-butanediol, triethylene glycol, and poly are exemplified. Ethylene glycol 200, polyethylene glycol 400, and polyethylene glycol 600 are particularly preferred.

Further, as a substance which is sufficiently low in affinity for tobacco and which does not easily undergo chemical decomposition over time, 1,3-butanediol, tripropylene glycol, dipropylene glycol, 1,4-butanediol, or triethylene glycol can be exemplified. Very good.

The vapor pressure system of the liquid polyol at 22 ° C is approximately 0.0001 to 10 Pa. Further, the molecular weight of the liquid polyol may be 1,000 or less.

<Method for obtaining tobacco affinity of polyol>

Method of operation

500 mg of shredded tobacco (adjusted in a blending condition of 22 ° C and 60% RH), and each of the polyol solutions was injected into a 4 mL screw tube sample, and placed in a wide-mouth screw tube (specification capacity 40 mL) In the state where the lid of the wide-mouth screw tube was sealed, it was stored in a dryer at 35 ° C for 2 weeks, and the degree of migration of each polyol to the shredded tobacco was examined.

The amount of change in the weight of the cut tobacco before and after storage is subtracted from the weight change due to the moisture content of the tobacco by gas chromatography, and the amount of migration of the polyol to the cut tobacco is determined, and 550 mg of cut tobacco based on the dry weight basis is used. The solution addition rate (% by weight) is defined as the cut tobacco affinity. Further, the amount of water is measured in accordance with the method of CORESTA (Cooperation Centre for Scientific Research Relative to Tobacco) RECOMMENDED METHOD N° 57 (Method N° 57 recommended by the Collaborative Research Center for Tobacco Research).

The solution added to the filter provided in the filter-attached cigarette of the present invention contains a tackifier, so that the solution can be prevented from moving out of the filter and leaking, whereby the appearance of the cigarette with the filter can be favorably maintained.

The type of the tackifier is not particularly limited as long as it is soluble in the specific polyol and water. For example, xanthan gum, gellan gum, and car front can be used. Psyllium seed gum, pectin, carboxymethylcellulose, hydroxypropylcellulose, polyvinyl alcohol, agarose, pullulan, alginic acid, polyacrylic acid, and the like An alkali metal salt or an alkaline earth metal salt.

Among them, carboxymethyl cellulose can be exemplified.

The amount of the liquid polyol having a cut tobacco affinity of 22.0 or less after the filter is added, and the amount of the cigarette with the filter may be 10 to 100 mg/filter per one. The liquid polyol having a cut tobacco affinity of 22.0 or less is in this range, and it is possible to selectively remove specific components in the tobacco smoke during smoking.

In addition, when glycerin is contained as the liquid polyol, the amount of each cigarette attached to the filter may be 1 to 150 mg/filter. By using 1 mg/filter or more, the tobacco affinity can be made lower. On the other hand, the upper limit of the amount of glycerin can be appropriately determined from the viewpoint of maintaining the taste and the amount of water in the filter.

Further, the tackifier is different depending on the type thereof, and the amount of cigarettes attached to the filter can be 0.5 to 200 mg/filter. Further, for example, when carboxymethylcellulose is used, the amount of each cigarette attached to the filter may be 10 to 150 mg/filter.

When the filter is added, the content of the liquid polyol having a tobacco affinity of 22.0 or less in the solution may be 10 to 95% by weight. On the other hand, the tackifier differs depending on the type thereof, and it can be 1 to 80% by weight in the above solution. The aforementioned solution also contains water. The content of water in the solution may be 4 to 30% by weight.

According to the embodiment of the present invention, in order to sufficiently remove the unnecessary components in the tobacco smoke, the content of the liquid polyol having a tobacco affinity of 22.0 or less after the storage of the filter-attached cigarette is 10 to 100 mg. In the manner of /filter, the concentration of each component added to the aforementioned solution of the filter is adjusted.

The viscosity of the above solution used in the present invention is not particularly limited as long as it can be added to the filter and stays in the filter.

For example, the viscosity at 25 ° C is 3500 to 9000 mPa ‧ s, and the viscosity at 25 ° C is preferably 6000 to 8500 mPa ‧ s.

The method of adding the above solution to the filter is not particularly limited, and a well-known method can be used. The above-mentioned solution contained in the filter can be in the form of 50 to 250 mg/10 mm. When the amount of the solution added to the filter is more than 250 mg/10 mm, when an external force is applied to the filter to cause deformation, there is a possibility that the solution oozes or leaks out to the outside of the filter.

In addition, "10 mm" used in the content unit of the solution means 10 mm in the longitudinal direction of the filter, and mg/10 mm is the solution weight (mg) per 10 mm in the longitudinal direction of the filter.

The filter portion is composed of two or more filter segments as described in the first to third figures. The aforementioned solution is added to at least one of the filter sections. The filter section of the aforementioned solution is added so that it does not contact the tobacco stem.

As described above, the filter-attached cigarette according to the embodiment of the present invention is characterized in that the solution of the specific composition is added to at least one filter section that does not contact the tobacco rod portion because the liquid polyol contained in the solution Since the tobacco affinity is 22.0 or less, it is possible to prevent the liquid polyol from volatilizing during storage. Thereby, the filter-attached cigarette of the present invention does not impair the action of the liquid polyol when it is used.

In the first to third figures, the package paper for the filter of the package filter portion is composed of the take-up paper 4, the forming paper 5, and the filter paper 6. As described above, the take-up paper 4 winds each of the filter sections composed of the filter medium 2 . In the forming paper 5, all of the continuous filter sections are wound, and the filter paper 6 is wound so that the filter part 7 and the tobacco rod part 1 are connected.

The filter section of the solution is added, and the solution can be added as long as it is a filter section that does not contact the tobacco rod portion among the two or more filter sections.

For example, the aforementioned solution may be added to one filter section (Fig. 1). Further, a mode in which the solution is added to the filter portion forming the end portion on the side of the suction port (Fig. 2); or when the filter segment is three or more, the solution may be A filter section that does not contact the tobacco stem portion and that is not the end portion that constitutes the suction port side, that is, a filter section that is only added to the middle section that constitutes the axial direction is added (Fig. 3).

The reason why the above solution is not added to the filter section of the tobacco rod portion is to prevent the aforementioned solution from oozing or leaking to the tobacco and tobacco wrap paper constituting the tobacco rod portion.

In the embodiment of the present invention, as the material of the winding paper of the package filter, a material formed of a material containing a liquid-impermeable layer can be used. Thereby, it is possible to suitably prevent the solution from leaking out of the filter.

In the liquid-impermeable layer of the present invention, a filter wrapper formed of a material containing the layer is used, and the filter to which the solution is added is taken up, even after the cigarette with the filter is manufactured. Stored in the box, the solution will not produce spots.

In the embodiment of the present invention, when the material of the winding paper of the package filter is formed of a material containing a liquid impermeable layer, it is possible to prevent the solution added to the filter from moving during storage. Leakage is caused outside the filter, so that a good appearance can be maintained even after a certain degree of storage. According to the above aspect, even if the solution having the specific composition described above is not held in a carrier such as a cerium oxide gel or enclosed in a capsule, it can remain in the filter.

The material containing the liquid-impermeable layer of the present invention may be a material composed only of such a layer; or a liquid-impermeable layer may be laminated by means of coating or vapor deposition. The surface of the substrate, and the substrate has a function of liquid impermeability. The substrate may be a well-known paper used for a wrapper for a filter, or may be a polymer such as a polymer.

The material constituting the liquid-impermeable layer may be one or more materials selected from the group consisting of a polymer compound, a metal, and an inorganic oxide.

More specific materials for forming the liquid-impermeable layer include polyethylene, polypropylene, polystyrene, cellulose, cellulose acetate, polytetrafluoroethylene, polyoxydimethylene sulfoxide, and polyacetic acid. One or more of vinyl ester, polyvinyl chloride, polymethyl acrylate, polymethyl methacrylate, natural rubber, polybutadiene, and copolymers thereof, aluminum, aluminum oxide, and cerium oxide.

Examples of the material for forming the liquid-impermeable layer include a polymer compound such as polyethylene and polypropylene, and a polymer compound such as polyethylene and polypropylene can be used as the filter roll. The material of the wrapping paper.

When the liquid impervious layer is laminated on the substrate, the layer thickness thereof is not particularly limited, and can be appropriately set in accordance with the combination of the substrate material and the liquid impermeable layer.

The thickness of the liquid-impermeable layer is 5 to 30 μm. Further, when the liquid impervious layer is provided on the substrate, the ratio of the thickness of the substrate to the liquid impermeable layer is set to 1 when the substrate is used, and the liquid impermeable layer can be used in an amount of about 0.01 to 1.0. .

The package wrapper comprising the material containing the liquid impermeable layer can be applied to the take-up paper contacting the filter section to which the solution is added, so as not to impair the appearance of the cigarette with the filter attached thereto. It is preferred from the viewpoint. The filter paper and the forming paper, the wrapping paper, and the winding paper of the filter section in which the solution is not added may be formed of the material containing the liquid impermeable layer.

Fig. 4 is a cross-sectional view showing the filter portion 7 of the embodiment in which the take-up paper having the liquid-impermeable layer is used as one of the winding paper filter filters.

The winding paper 4 winds the filter portion 7 in the circumferential direction of the filter medium 2 formed into a cylindrical shape. More specifically, the take-up paper 4 winds the filter medium 2 toward the inside with the liquid-impermeable layer 42 facing the outer peripheral surface of the filter medium 2 so that the liquid-impermeable layer 42 faces. Further, the take-up paper 4 includes one of the first end portion region 43 and the second end portion region 44 extending along the axial direction of the filter portion 7, and the first end portion region 43 and the second end portion region 44 are mutually The stacking is formed into a cylindrical shape by joining the superposed regions.

As shown in Fig. 4, the winding paper 4 of the filter portion 7 is provided with a palm portion 45 in which the inner surfaces of the first end portion region 43 and the second end portion region 44 are opposed to each other. Further, reference numeral 46 in Fig. 4 shows the adjacent wrap portion of the packaged filter portion 7 adjacent to the palm portion 45 of the take-up paper 4.

In the present invention, the first end portion region 43 and the inner surface of the second end portion region 44 shown in Fig. 4 are arranged to face each other. However, the end portion may be one of the conventional configurations. The inner faces of the inner end face are aligned with the outer faces of the other end regions.

In the palm-handling portion 45 of the take-up paper 4, the inner surface of the first end portion region 43 and the second end portion region 44, that is, the liquid-impermeable layer 42 and the second end portion region on the first end portion region 43 side are formed. The liquid impermeable layer 42 on the 44 side is bonded to each other. In the present embodiment, the liquid impermeable layer 42 on the first end portion 43 side of the palm portion 45 and the liquid impermeable layer 42 on the second end portion region 44 are bonded together by heat welding. . Further, when the liquid impermeable layer 42 of the present embodiment is formed using polyethylene having a low melting point, it is easy to handle when it is thermally welded.

Further, as shown in Fig. 4, the folded portion 45 of the take-up paper 4 is folded back so that the outer surface of the first end portion region 43 faces the outer surface of the adjacent wrapping portion 46. Further, the palm portion 45 is fixed to the adjacent wrapping portion 46 through the adhesive 9 while covering the outer surface of the adjacent wrapping portion 46.

When the end joining structure of the winding paper 4 of the present embodiment shown in Fig. 4 is used, the inner surface of the first end portion region 43 and the second end portion region 44, that is, the liquid impermeable layer 42 is used. Since the palm portion 45 is formed in a state of being overlapped with each other, the base material 41 of the take-up paper 4 is not in contact with the solution 10 added to the filter medium 2. Thereby, it is possible to suppress the solution 10 added to the filter medium 2 from infiltrating into the base material 41 of the winding paper 4. Therefore, the bonding of the first end portion region 43 and the second end portion region 44 does not cause a problem such as peeling. Further, it is possible to suppress the solution 10 added to the filter medium 2 from oozing out to the outside. As a result, the appearance of the cigarette with the filter can be favorably maintained. Further, since the palm portion 45 of the take-up paper 4 is folded back along the outer surface of the adjacent wrapping portion 46 and is followed by the adhesive 9, it is possible to suppress deformation of the shape of the filter portion 7 and maintain a good circular shape.

Further, in the present embodiment, the thickness of the liquid-impermeable layer 42 of the take-up paper 4 is not particularly limited, and can be appropriately set in accordance with the combination of the material of the base material 41 and the material forming the liquid-impermeable layer 42 and the like. For example, the thickness of the liquid-impermeable layer 42 is set to 5 to 30 μm. Further, when polyethylene is applied to the base material 41 of the take-up paper 4 to form the liquid-impermeable layer 42 on one surface, the basis weight and thickness can be selected in advance so that the coating liquid does not permeate the substrate 41. , ventilation, etc.

Further, the type of the adhesive portion 45 of the winding paper 4 that is adjacent to the wrapping portion 46 is not particularly limited. For example, a hot-melt paste having high water resistance can be suitably used. As the hot melt paste, for example, an ethylene vinyl acetate copolymer (EVA)-based hot melt material can be suitably used.

Further, in the winding paper 4 of the present embodiment, the liquid-impermeable layer 42 is formed only on the inner surface side facing the filter medium 2 of the filter portion 7, and the liquid-impermeable layer 42 is not formed on the outer surface side. In other words, since both the outer surface of the palm-coating portion 45 and the outer surface of the adjacent wrapping portion 46 are formed by the exposed surface of the base material 41, the adhesion of the adhesive 9 can be suppressed from being lowered. In addition, the folded-back length when the first end portion region 43 is folded back in the palm-shaped portion 45 of the winding paper 4 is not particularly limited, and may be in the form of about several mm (for example, 2 mm). The advantage of manufacturing suitability.

The solution added to the filter constituting the filter-attached cigarette of the present invention may contain components other than the components described above.

As such a component, triacetin which is a plasticizer which comprises the tow of a filter is mentioned.

For the plasticizer such as triacetin, an amount of 0 to 60 mg/filter as one cigarette can be mentioned.

As the other component, it is also possible to add an adsorbent for improving the adsorption performance, a fragrance for imparting a function of releasing the fragrance, or a coloring material for use in quality inspection.

The filter may also incorporate activated carbon, capsules, ribbons, and the like.

In the present invention, as shown in FIGS. 1 to 3, not only the filter segment may be continuously present in the axial direction, but also a filter segment other than the segment of the suction port end of the contact filter may be used. In the same way, there is a gap between the filter segments. When there is a gap between the tobacco rod portion and the filter segment or between the plurality of filter segments, the package wrapper may be composed of at least a material containing a solution impervious layer. As a package, a roll paper with a filter section of the aforementioned solution is added, but for other filter papers (formed paper, filter paper, and a filter bag to which a package is not added) It is also possible to use a material consisting of a material containing a solution impervious layer.

In the filter paper used in the present invention, a vent hole can be provided to adjust the ratio of the mainstream smoke and the air which is inhaled during smoking (the filter paper shown in FIG. 1 to FIG. 3 is shown by a dotted line). Things). The arrangement of the vent holes is not particularly limited, and may be arranged in a row or a row in the circumferential direction of the cigarette. Further, the pitch of the vent holes, the size of the holes, and the method of opening are also not particularly limited.

The position of the vent hole is preferably at a position separated by at least 2 mm from the tobacco rod side end of the filter to which the specific solution is added toward the tobacco rod side. With this configuration, it is expected to enhance the taste. Further, it is possible to prevent the presence of the vent hole at the position on the filter to which the solution is added or the vent hole at the position between the filter segments.

The filter-attached cigarette of the present invention is packaged in a well-known cigarette pack, and the outer side of the package is packaged in a substantially sealed state by using a transparent film made of a material such as polypropylene, and the cigarette pack can be packaged ( Cigarette package) (cigarette product) is provided.

Since the filter provided in the filter-attached cigarette of the present invention has the specific solution as described above and the liquid polyol contained in the solution has a cut tobacco affinity of 22.0 or less, as described above, in a substantially sealed state. When it is packed in a package, it can fully perform its function. That is, since the polyol does not easily migrate (adsorb) the tobacco rod of the tobacco rod portion of the cigarette with the filter in the package, it can be expected that the polyol does not migrate to the tobacco, and the polyol is contained in the package. The vapor pressure is low, and the polyol is volatilized from the filter.

The shape and volume of the packaging box for charging the cigarette with the filter of the present invention are not limited, and the conventionally existing one can be utilized.

A preferred volume range for the package can be, for example, 30 to 150 cm ³ .

The number of cigarettes to which the filter is attached to the package is usually 20, but may be appropriately changed according to the shape and size of the package.

 [Examples]  

The present invention will be more specifically described by the examples, but the present invention is not limited by the description of the following examples.

<Measurement of Tobacco Affinity of Each Polyol>

500 mg of shredded tobacco (adjusted in a blending condition of 22 ° C and 60% RH), and each of the polyol solutions was injected into a 4 mL screw tube (Maruemu, screw tube No. 1, specification capacity) 4 mL) The sample was placed in a wide-mouth screw tube (Kuangu Physicochemical, JSV-40, and a specification capacity of 40 mL), and stored in a 35 ° C dryer for 2 weeks while the lid of the wide-mouth screw tube was sealed. The extent to which each polyol migrates to the cut tobacco.

The amount of change in the weight of the cut tobacco before and after storage is subtracted from the weight change due to the moisture content of the tobacco by gas chromatography, and the amount of migration of the polyol to the cut tobacco is determined, and the dry weight basis is 550 mg. The solution addition rate (% by weight) of cut tobacco is defined as the cut tobacco affinity. Further, the moisture content is determined in accordance with the method of CORESTA RECOMMENDED METHOD N° 57.

The results are shown in Table 1 below.

As shown in Table 1, even if the vapor pressure is high, it is not necessarily the result that the tobacco has a high affinity. The higher vapor pressure is likely to evaporate, and as a result, it is not easy to migrate to the cut tobacco in a confined space.

From this result, it is found that, in consideration of the loss in storage for the liquid added to the cigarette with the filter, the degree of affinity of the cut tobacco is not an effective indicator.

<Test Example 1: Determination of the amount of polyol remaining in a cigarette with a filter after storage>

(1) Sample preparation

A tobacco rod portion and a filter portion of a commercially available filter cigarette (tar 6 mg, nicotine 0.5 mg) were used. In the filter portion, the configuration of Fig. 1 was produced using an acetate filter and a filter for adding a solution which was wrapped by a winding paper which was processed by polyethylene bonding. The prepared cigarette sample with a filter was placed in a PP (polypropylene) bag (manufactured by Nippon Co., Ltd., MG-H), and the zipper was sealed.

Moreover, the composition of the solution used for each test example of this specification is as follows.

39.4 parts by weight of 1,3-butanediol (or propylene glycol), 16.9 parts by weight of glycerin, 18.8 parts by weight of water, and 0.75 parts by weight of carboxymethylcellulose (total part by weight of the solution: 75 parts by weight)

(2) Storage

The sample was stored in a room temperature-controlled and humidity-controlled at 22 ° C 60% RH, and a thermo-hygrostat (manufactured by ESPEC Co., Ltd., LHU-113) adjusted to a temperature of 35 ° C and 60% RH. The storage period is set to 1 month, 2 months, 3 months, and 6 months.

(3) Evaluation of the residual amount of solution in each component of cigarette

The stored cigarettes were taken out from the PP bag and the cigarettes with the filter were decomposed into the respective members. Specifically, it is decomposed into four sections such as a tobacco rod portion, a filter paper, a filter segment composed of a blank filter to which no solution is added, and a filter segment to which a solution is added. The quantification of polyol ‧ water was carried out for each component.

Further, the amounts of PG (propylene glycol) and G (glycerol) were quantified in accordance with CORESTA RECOMMENDED METHOD N° 60 and water amount in accordance with CORESTA RECOMMENDED METHOD N° 57.

The results are shown in (a) and (b) of Fig. 5. The horizontal axis of each figure indicates the storage period, and the vertical axis indicates the mass of the material remaining in the filter. It can be seen from the respective graphs that 1,3-butanediol (1,3-BD: cut tobacco affinity: 8.3, vapor pressure: 8 Pa) and diglycerin (DG: cut tobacco affinity) are lower than that of cut tobacco affinity. Degree: 0), the propylene glycol having a higher affinity for tobacco (in the figure, PG: cut tobacco affinity: 22.5, vapor pressure: 10.6 Pa) has a small residual amount of the filter after storage.

<Test Example 2: Confirmation test of filtration ability of components in smoke when using a filter for adding a solution before and after storage>

(1) Modulation of the sample

A tobacco rod portion and a filter portion of a commercially available filter cigarette (tar 6 mg, nicotine 0.5 mg) were used. In the filter portion, the configuration of Fig. 1 was produced using an acetate filter and a filter for adding a solution which was wrapped by a winding paper which was processed by polyethylene bonding.

In addition, the vent hole was clogged with adhesive tape (manufactured by Sumitomo 3M Co., Ltd., BH-12).

Moreover, each filter specification is the tobacco side AF10mm; 2.2Y40000 (GTA9%), central WGF; 5.9Y35000 (GTA16%), suction AF7mm; 5.5Y31000 (GTA9%).

Here, the initial value "2.2" of the cut tobacco side AF10 mm of the filter specification indicates silk fancy (fd), "Y" indicates the cross-sectional shape, and the last value "40000" indicates total denier (td).

(2) smoking test

Using an automatic smoking device (CERULEAN, CERULEANSM450RH), three identical cigarette samples with a filter were used for a smoking capacity of 17.5 ml/sec, a smoking time of 2 seconds/puff, a smoking frequency of 1 aspirate/minute, The cigarette butt was automatically smoked under the condition of 18 mm in length, and the particulate matter in the tobacco smoke was collected using a Cambridge filter (manufactured by Borgwaldt KC Inc., CM-133), and cooled by a refrigerant composed of dry ice-isopropyl alcohol to - 10mL of methanol (produced by Wako Pure Chemical Industries Co., Ltd., special grade) was used to capture the smoke passing through the Cambridge filter.

The Cambridge filter after the smoking test was shaken in methanol for trapping the smoke component passing through the Cambridge filter to obtain an analytical sample. 1 μL of the obtained analysis sample was taken to a micro syringe, and mass spectrometry by gas chromatography (GC-MSD manufactured by Agilent, and the model used in the analysis of the particle phase and the vapor phase were GC: 7890A, MS: 5975C, and GC, respectively). :6890A, MS:5973) for analysis.

(3) Evaluation of filtration performance

The filtration performance of the specific components in the smoke before and after storage was compared with respect to the filter which added the solution containing the propylene glycol, and the filter of the solution containing 1,3-butanediol. The change ratio of the specific component transport amount obtained by using the filter before and after storage was calculated from the formula shown below.

(I)A' _i,liq.before =A _i,liq.before /S,A' _i,liq.after =A _i,liq.after /S

(II) Ti=A' _i,liq.after /A' _{i,cont.before}

Here, A _i,liq.before is a quantitative value of the component i in the smoke obtained from the cigarette sample having the filter with the added solution before storage, and A _i,liq.after means adding from the storage. The quantitative value of the component i in the smoke obtained from the cigarette sample of the filter of the solution.

The Si system indicates a quantitative value of the component i in the smoke of a standard cigarette used to correct an error caused by work during a smoking test on a different schedule. For standard cigarettes, the quantification of the ingredients in the smoke is carried out in each smoking test.

The result is shown in Figure 6. The horizontal axis of Fig. 6 indicates the specific component type in the smoke, and the vertical axis indicates the rate of change of the specific component in the smoke obtained by performing the smoking test before and after storage.

When a solution containing propylene glycol having a high affinity for tobacco was added to the filter, it was found that the components in the smoke before and after the storage, particularly the alcohol, had a high rate of change. This is considered to be because the added propylene glycol is volatilized during storage, particularly due to the low filtration performance of the alcohol.

<Test Example 3: Confirmation of filtration ability of components in smoke of liquid polyol having a tobacco affinity of 22.0 or less>

As the polyol having a tobacco affinity of 22.0 or less contained in the solution, 1,3-butanediol was selected, and a filter-attached cigarette was produced using the same procedure as in Test Example 1. Similarly, a filter-attached cigarette to which a solution containing propylene glycol was added to a filter was produced.

With respect to these cigarettes with a filter, the filtration performance of the components in the smoke was confirmed in accordance with the same procedure as in Test Example 2.

The results showing the filtration ability of the components in the smoke are shown in Fig. 7 for the polyol of the solution contained in each cigarette with a filter.

From the results of Fig. 7, it is found that the filtration performance of the components of 1,3-butanediol and propylene glycol is equivalent.

<Confirmation test of the roll of the roll

For the filter-attached cigarette to which a solution containing a liquid polyol having different degrees of tobacco affinity was added, the number of the wrap-around spots was calculated according to the following Table 2 after storage.

<Storage test in the form of cigarettes (confirmation of the generation of the roll of the roll)>

In the above test example 1, the amount of the polyol adsorbed by the shredded tobacco is equivalent to the amount of the solution adsorbed by the shredded tobacco in the case where the individual packaging form (packaging of the cigarette) is stored at 35 ° C and 60% RH for 1 to 2 months. .

When stored in a cigarette package in a packaged form at 35 ° C for 60% RH for 2 months, the cigarette with the filter attached to the cigarette without the addition of the polyol solution and the filter with the added 1,3-butanediol is not A major drawback is that cigarettes with filter-attached cigarettes with a propylene glycol-added filter have a major disadvantage in having 20% of the filter-attached cigarettes in one package.

Therefore, when a polyol having a tobacco affinity having a tobacco affinity of 1,3-butanediol in the vicinity of the value (8.3) of the vicinity of 1,3-butanediol is added to the filter, it is excellent in that it does not induce the occurrence of a roll of the roll.

 [Industrial availability]  

In the filter-attached cigarette of the present invention, the polyol contained in the solution of the filter section constituting the filter section is a liquid polyol having a tobacco affinity of 22.0 or less, and a filter is attached thereto. Cigarettes are not easily volatilized during storage.

Therefore, the filter-attached cigarette of the present invention has high storage stability after manufacture, and even if it is used for a certain degree of storage until the smoker uses it, the liquid polyol having a tobacco affinity of 22.0 or less is The selective removal of specific components from tobacco smoke has less impact.

Claims (9)

 A cigarette with a filter having a tobacco rod portion, a filter portion, and a filter-attached cigarette for wrapping the filter paper on the outside of the filter portion, the filter portion is composed of two The filter segment is configured to include a solution containing a polyol, water and a tackifier in at least one filter segment that does not contact the tobacco rod portion, and the polyol has a tobacco affinity of only 22.0 or less. It consists of a liquid.    The filter-attached cigarette according to claim 1, wherein the liquid polyol having a tobacco affinity of 22.0 or less is selected from the group consisting of 1,2-butanediol, 1,3-butanediol, and , 4-butanediol, 2,3-butanediol, glycerin, diglycerin, dipropylene glycol, tripropylene glycol, ethylene glycol, triethylene glycol, polyethylene glycol 200, polyethylene glycol 400, and polyethylene Alcohol 600.    The filter-attached cigarette according to claim 1, wherein the polyol is composed only of a liquid polyol having a tobacco affinity of 9.0 or less.    The filter-attached cigarette according to claim 3, wherein the polyol contains 1,3-butanediol and glycerin.    The filter-attached cigarette according to the first aspect of the invention, wherein the packaged roll paper comprises a take-up paper, a forming paper, and a filter paper, and the filter bag is provided with the aforementioned solution. The winding paper of the segment is made of a material containing a liquid impermeable layer.    The filter-attached cigarette according to claim 5, wherein the liquid-impermeable layer is formed of one or more materials selected from the group consisting of a polymer compound, a metal, and an inorganic oxide.    The filter-attached cigarette according to claim 5, wherein the material for forming the liquid impermeable layer is selected from the group consisting of polyethylene, polypropylene, polystyrene, cellulose, cellulose acetate, polytetra Vinyl fluoride, polyoxydimethyl sulfoxide, polyvinyl acetate, polyvinyl chloride, polymethyl acrylate, polymethyl methacrylate, natural rubber, polybutadiene, and copolymers thereof, aluminum, oxidation One or more of aluminum and cerium oxide.    The filter-attached cigarette according to claim 5, wherein the winding paper of the filter section is wound with one of the first end portions extending along the axial direction of the filter section. The region and the second end portion are formed into a cylindrical shape by joining the first end portion region and the second end portion region, and the inner surfaces of the first end portion region and the second end portion region are formed to face each other The overlapping palm portion is folded back toward the wrap portion side of the filter segment while adjoining the palm portion, and is fixed while covering the wrap portion.    A cigarette pack is provided with a filter-attached cigarette according to any one of claims 1 to 8 in a substantially sealed state.