JP6790228B2 - Smoking goods with filters - Google Patents

Description

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

A smoking article with a filter, for example, a cigarette with a filter, is one in which a cigarette rod and a filter are butted, and the outer peripheral surface of the filter and the outer peripheral surface of the cigarette rod near the butted portion are wrapped with an outer wrapper and integrated.

In a smoking article with a filter, the filter wrapped with an outer wrapper functions as a mouthpiece that the user holds in the mouth when smoking. The physical properties of the mouthpiece give the user various sensations when smoking, and thus influence the user's impression of the filtered smoking article.

Patent Document 1 discloses a smoking article filter having a certain hardness or more on the oral edge so that the user can chew and enjoy the oral edge of the smoking article filter during the smoking experience. ing.

Special Table 2016-523565

However, Patent Document 1 focuses on the behavior of the user chewing on the filter and enjoying it, and does not evaluate the sensation (feeling of holding) when the user holds the mouthpiece with his lips when smoking.

An object of the present invention is to provide a smoking article with a filter having a good sensation (feeling of holding) when a user holds a mouthpiece with his / her lips when smoking.

According to the present invention, an aerosol generating member; a filter including a filter material and one or more filter wrappers around the outer peripheral surface of the filter material; and an end portion of the aerosol generating member and the outer peripheral surface of the filter. The outer peripheral surface of the outer wrapper is provided with an outer wrapper to be wrapped; the arithmetic mean roughness is less than 2.0 μm, and the filter wrapped with the outer wrapper is diametrically oriented over a range of 10 mm in length. Provided is a smoking article with a filter characterized in that the compressive recovery after applying a compressive load of 2.5 N is 60% or more.

According to the present invention, it is possible to provide a smoking article with a filter that gives a good sensation (feeling of holding) when the user holds the mouthpiece with his lips.

FIG. 1 is a schematic diagram showing a compression deformation amount-compression restoration force curve for calculating compression recovery. FIG. 2 is a schematic diagram illustrating the definition of hardness. FIG. 3 is a schematic cross-sectional view showing a smoking article with a filter according to the first embodiment. FIG. 4 is a schematic cross-sectional view showing a smoking article with a filter according to a third embodiment. FIG. 5 is a schematic view showing a method for measuring compression repeatability.

Hereinafter, the smoking article with a filter according to the present invention will be described in detail.

The smoking article with a filter according to the present invention includes an aerosol generating member, a filter including the filter material and one or a plurality of filter wrappers around the outer peripheral surface of the filter material, an end portion of the aerosol generating member, and the outer periphery of the filter. It has an outer wrapper that wraps the surface. The outer peripheral surface of the outer wrapper has an arithmetic mean roughness of less than 2.0 μm, and the filter wrapped with the outer wrapper applies a compressive load of 2.5 N in the radial direction over a range of 10 mm in length. The compression recovery of is 60% or more.

In a smoking article with a filter, the filter wrapped with the outer wrapper is a mouthpiece that the user holds in the mouth when smoking. The outer peripheral surface of the outer wrapper is the outer peripheral surface of the mouthpiece that the user's lips touch when smoking. The inventors have found that, according to the filtered smoking article of the present invention, the sensation (feeling of holding) when the user holds the mouthpiece with the lips during smoking is particularly excellent.

Further, in order to further improve the gripping comfort of the smoking article with a filter, the inventors preferably have an arithmetic average roughness of the outer peripheral surface of the outer wrapper of 1.5 μm or less, more preferably 1.0 μm. I found that:

Furthermore, in order to further improve the gripping comfort of the smoked article with a filter, the inventors apply a compressive load of 2.5 N in the radial direction to a range of 10 mm in length of the filter wrapped with the outer wrapper. It has been found that the compressibility after the above is preferably 60% or more and less than 80%, and more preferably 60% or more and less than 70%.

The lower the arithmetic mean roughness of the outer peripheral surface of the outer wrapper, the smoother the user's lips feel when the user holds the mouthpiece with his lips when smoking. Appropriate compression multiples of the mouthpiece give favorable pressure to the user's lips when the user holds the mouthpiece with his lips when smoking. A high compression repeatability is preferable because the shape of the mouthpiece can be restored to the state before compression after the user holds the mouthpiece with his lips and compresses it during smoking. On the other hand, even if the compression repeatability of the mouthpiece is appropriate, if the arithmetic mean roughness of the outer wrapper is high, the lips of the user are given a rough feel, and the gripping comfort is not preferable.

Further, in order to further improve the gripping comfort of the smoking article with a filter, the inventors preferably have a folding recovery angle of 60 degrees or more for the outer wrapper or one or a plurality of filter wrappers. It has been found that the temperature is preferably 100 degrees or more, more preferably 100 degrees or more and 120 degrees or less. If the folding recovery angle of the outer wrapper or one or more filter wrappers is large, the user's lips will feel the hardness and feel comfortable when the user holds the mouthpiece with his lips when smoking. Makes you feel good. In general, when the folding recovery angle of the outer wrapper or one or more filter wrappers is large, the compression recovery of the filter wound by the outer wrapper is improved.

Furthermore, the inventors preferably have a filter wrapped with an outer wrapper having a hardness of less than 90%, more preferably 80% or more and 90%, in order to further improve the gripping comfort of the filtered smoking article. It was found that it was less than%, more preferably 85 or more and less than 90. It was found that it is preferable that the hardness of the mouthpiece is not too hard for the comfort of the smoking article with a filter.

The definitions of the above-mentioned terms "arithmetic mean roughness", "compression multipleness", "fold recovery angle" and "hardness" will be described below.

<Arithmetic mean roughness>
The term "arithmetic mean roughness" as used herein refers to arithmetic mean roughness (Ra) measured using a surface roughness meter under ISO 1997 compliant measurement conditions.

<Compression multiples>
The term "compression recovery" as used herein refers to repetitiveness to compression. For compression repeatability, a columnar plunger with a diameter of 10 mm is used to compress a test sample, which is a filter wrapped with an outer wrapper, to a compression load of 2.5 N in the radial direction over a range of 10 mm in length, and then compressed. It is calculated from the compression deformation amount-compression restoring force curve obtained when the operation is stopped and the shape of the test sample is restored. The amount of compression deformation is the amount of deformation [mm] of the diameter of the test sample compressed by the compression load. The compression deformation-compression restoring force curve is measured using, for example, a rheometer. In FIG. 1, after compressing the test sample in the radial direction (curve AB) to a compression load of 2.5 N at a set speed, the compression operation is stopped and the shape is restored until the restoring force from the test sample becomes 0 N. It is a schematic diagram which shows the compression deformation amount-compression restoration force curve obtained by plotting the compression restoration force [N] (curve BC) with respect to the compression deformation amount [mm] at the time of this.

In the compression deformation amount-compression restoring force curve, the work amount (area of the region ABD) at the time of compression (curve AB) and the work amount (area of the region CBD) at the time of restoration (curve BC) are calculated respectively. The compression recovery [%] is calculated by the following formula.

Compression recovery [%] = (area of region CBD) / (area of region ABD) x 100 [%]
The reason why the compressive load is set to 2.5 N is that the average value of the force when the user holds the mouthpiece with the lips during smoking is 2.5 N for a range of 10 mm in length. Compression times double resistance, compressive deformation of the test samples after stopping the compression operation (T C _mm) becomes a higher value approaching the compressive deformation amount before compression (0 mm). Further, the compression repeatability is higher as the compression restoration force [N] is closer to the compression deformation amount [mm] during pressurization (curve AB) and restoration after the compression operation is stopped (curve BC). Become.

<Fold recovery angle>
The term "fold recovery angle" as used herein refers to the restoring force that returns the sheet to its original planar shape. The fold recovery angle indicates the fold angle of a sheet after bending a sheet to 180 degrees at a constant pressure and allowing it to stand for 30 seconds.

<Hardness>
The term "hardness" herein refers to resistance to compression. Hardness is measured by applying a 2 kg load to a filter wrapped with 10 outer wrappers for 20 seconds and measuring the average recessed diameter of the filter wrapped with outer wrappers. FIG. 2 shows a filter 101 wrapped with an outer wrapper before being loaded and a filter 102 wrapped with an outer wrapper while being loaded. The hardness is calculated by the following equation from the diameter Ds before the load F is applied and the recessed diameter Dd when the load F is applied.

Hardness (%) = Dd / Ds x 100 (%)
This test can be performed using a device called DD60A Densmeter manufactured by Borgwald. This test is called the DD60A test and is performed according to the standard test method for this device. This test is performed at an ambient temperature of 22 ± 2 degrees Celsius.

Hereinafter, some embodiments will be described with reference to the drawings. The same reference numerals are given to common elements throughout the embodiment, and duplicate description will be omitted. In addition, each figure is a schematic view for promoting understanding of the embodiment, and the shape, dimensions, ratio, and the like are different from the actual ones. In the present specification, the terms "upstream" and "downstream" are used as appropriate, and these are based on the direction in which the aerosol flows when the filtered smoking article is smoked.

(First Embodiment)
FIG. 3 is an enlarged schematic cross-sectional view showing a part of the smoking article 1 with a filter according to the first embodiment. In the following description, as an example of the smoking article 1 with a filter, a cigarette with a filter will be described, but the present invention is not limited thereto. The smoking article 1 with a filter is another smoking article to which a filter is connected, for example, a cigar, a cigarillo, a non-combustion type smoking device using electric heating / chemical reaction heat, a non-heating type smoking device, or the like. Good.

The smoking article 1 with a filter includes an aerosol generating member 11, a filter 12, and an outer wrapper 13. The aerosol generating member 11 is, for example, a cigarette rod 11. The cigarette rod 11 includes a tobacco chopping 111 and a cigarette paper 112 that wraps around the tobacco chopping 111, similarly to a normal cigarette. Cigarette paper 112 is, for example, breathable paper.

The filter 12 is arranged at the downstream end of the cigarette rod 11. The filter 12 has the same or substantially the same diameter as the cigarette rod 11. The filter 12 includes a filter material 121 and a filter wrapper 122 that winds around the filter material 121. The filter 12 has a plain filter structure composed of a single filter material.

The outer wrapper 13 is wound around the downstream end of the cigarette rod 11 and the outer peripheral surface of the filter 12 to connect the cigarette rod 11 and the filter 12. The outer wrapper 13 is adhered to the cigarette rod 11 and the filter 12 by a conventional adhesive used in the manufacture of common filtered smoking articles.

The filter 12 wound with the outer wrapper 13 has a compression recovery property of 60% or more, preferably 60% or more and less than 80%, and more preferably 60% or more and less than 70% after applying a compressive load of 2.5N. Is. The compressive repeatability of the filter 12 wound by the outer wrapper 13 is comprehensively determined by the material, thickness and basis weight of the outer wrapper 13 and the filter wrapper 122, the material of the filter material 121, and the like. The compression repeatability of the mouthpiece made of the filter 12 wound by the outer wrapper 13 is preferably obtained from the physical properties of the outer wrapper 13.

(A) Outer wrapper (13)
The arithmetic mean roughness of the outer peripheral surface of the outer wrapper 13 when wound around the filter is less than 2.0 μm, preferably 1.5 μm or less, and more preferably 1.0 μm or less. The folding recovery angle of the outer wrapper 13 is preferably 60 degrees or more, more preferably 100 degrees or more, and further preferably 100 degrees or more and 120 degrees or less.

The outer wrapper 13 is not particularly limited as long as it is configured to satisfy the above-mentioned arithmetic mean roughness, compression repeatability, and preferably the folding recovery angle. The outer wrapper 13 is composed of, for example, a sheet including a plurality of layers. A sheet containing a plurality of layers includes, for example, a base material layer and a surface layer provided on one side or both sides of the base material layer.

The base material layer is not particularly limited, but a material having a high folding recovery angle is preferable, and for example, a resin film. The resin film is preferably a thermoplastic resin film, for example, polyethylene-based resin, polyolefin-based resin such as polypropylene, polyamide-based resin such as nylon-6, polyester-based resin such as polyethylene terephthalate, polystyrene-based resin, polycarbonate or A film containing polyphenyl sulfide or a mixture thereof can be mentioned. The base material layer is particularly preferably a polyethylene-based resin, a polyolefin-based resin such as polypropylene, or a polyester-based resin film, and more preferably a film containing polyester or polyolefin as a main component. The base material layer is preferably a biaxially stretched film in order to increase rigidity and strength and increase the folding recovery angle. The base material layer may contain an inorganic filler such as calcium carbonate, calcined clay, alumina, titanium dioxide, or an organic filler. The base material layer may have a single layer structure or a multi-layer structure.

The surface layer is not particularly limited as long as the outer peripheral surface of the outer wrapper 13 has an arithmetic average roughness of 2.0 μm or less, but is, for example, a coating layer containing an inorganic filler, a paper-like layer made of resin, or cellulose nano. Examples include a coating layer containing fibers.

The coating layer containing the inorganic filler is, for example, a white pigment coating layer similar to the surface layer of ordinary coated paper. The coating layer containing the inorganic filler contains, for example, an aqueous resin binder, an inorganic filler, an aqueous polymer, and may also contain a colorant. Examples of the inorganic filler include calcium carbonate, satin white, silica, titanium oxide, alumina, zinc oxide, iron oxide, clay and aluminum sulfate, and in particular, fillers such as calcium carbonate and titanium oxide, zinc oxide, etc. Pigments such as iron oxide are preferred. In order to reduce the arithmetic mean roughness of the surface layer, the particle size of the inorganic filler is preferably 15 μm or less. By having a surface layer containing an inorganic filler, effects such as improvement of printability, improvement of pencil writing property, improvement of whiteness, coloring, imparting opacity, and improvement of surface smoothness can be obtained.

The paper-like layer made of resin is, for example, a resin film having a large number of microvoids due to stretching orientation only in the uniaxial direction. The paper-like layer made of resin may contain the above-mentioned inorganic filler. The paper-like layer made of resin has effects such as improvement of printability, improvement of pencil writing property, improvement of whiteness, coloring, imparting opacity, and improvement of surface smoothness by the large number of microvoids.

The coating layer containing cellulose nanofibers is, for example, a coating layer containing cellulose nanofibers having an average fiber length of 50 nm or less and an average fiber length of 10 μm or more. The coating layer containing the cellulose nanofibers is prepared by dispersing the cellulose nanofibers in an appropriate solvent (for example, water or alcohol) to prepare a slurry, applying the slurry to the base material layer, and drying the slurry. Can be made.

It is preferable that the outer wrapper 13 has a surface layer because when the user holds the mouthpiece with his lips during smoking, even if the base material layer is a resin film, the feel like plastic is lost. Further, since the outer wrapper 13 is generally printed with a logo mark, a pattern, etc. in order to enhance the design, it is preferable to have a surface layer having printability.

The outer wrapper 13 is preferably a synthetic paper having a base material layer which is a resin film, a coating layer containing an inorganic filler, or a surface layer of a paper-like layer made of resin. Generally, synthetic paper having a coating layer containing an inorganic filler is called a surface coating type synthetic paper, for example, Peach Coat (registered trademark) (WER-135DS, WEFY-120, or SEY-130FPP) ( Nisshinbo Paper Products Co., Ltd.). In general, synthetic paper having a paper-like layer made of a resin film is called an internal paper-forming synthetic paper, for example, Yupo Trace (registered trademark), New Yupo (trade name), Ultra Yupo (registered trademark) (Yupo Co., Ltd.). Corporation) and the like.

The basis weight of the outer wrapper 13, to obtain the appropriate compression recovery property in the suction unit is preferably less than 50 g / ^{m 2} or more 200 g / ^{m 2,} more preferably less than 100 g / ^{m 2} or more 200 g / ^{m 2} is there. It is preferable that the outer wrapper 13 has a large basis weight because the folding recovery angle of the outer wrapper 13 is generally improved.

The thickness of the outer wrapper 13 is preferably 50 μm or more and less than 150 μm, and more preferably 100 μm or more and less than 150 μm in order to obtain appropriate compression repeatability for the mouthpiece. It is preferable that the outer wrapper 13 is thick because the folding recovery angle is generally improved.

(B) Filter material (121)
The filter material 121 may be composed of a normal filter material 121, for example, an acetyl cellulose fiber. The physical properties of the filter material 121 affect the compression repeatability of the mouthpiece.

The filter material 121 may be further added with a plasticizer. The plasticizer is not particularly limited as long as it is a plasticizer that plasticizes acetyl cellulose fibers, and examples thereof include triacetin. When a plasticizer is added to the acetyl cellulose fibers, the acetyl cellulose fibers are partially melted and the fibers are bonded to each other. As a result, by adding a plasticizer to the acetyl cellulose fibers, the compressive repeatability of the filter material 121 is increased. As the amount of the plasticizer added increases, the compressive repeatability of the filter material 121 increases. Therefore, the compression repeatability of the filter material 121 can be adjusted by adjusting the amount of the plasticizer added. The amount of the plasticizer added may be appropriately selected according to the compression repeatability required for the mouthpiece. In the filter material 121, the amount of the plasticizer blended in the acetyl cellulose fibers is preferably 0% by weight to 20% by weight with respect to the acetyl cellulose fibers, for example. Further, an adhesive may be added to the filter material 121. When the adhesive is added, an effect similar to that when the plasticizer is added is obtained, and the compression repeatability of the filter material 121 is increased. Therefore, the compression repeatability of the filter material 121 can be adjusted by adjusting the amount of the adhesive added. Further, the filter material 121 may further contain an adsorbent such as activated carbon and a flavor release material such as a fragrance capsule.

(C) Filter wrapper (122)
The filter wrapper 122 may be composed of, for example, the filter wrapper 122 used in the ordinary smoking article 1 with a filter, and examples thereof include a cellulose-based material, paper, cardboard, recon, a cellulose-based film, or a combination thereof. .. The filter wrapper 122 may be a single layer, or a plurality of filter wrappers 122 may be bonded with an adhesive or the like. The physical properties of the filter wrapper 122 affect the compression repeatability of the mouthpiece. As the basis weight and thickness of the filter wrapper 122 increase, the compression recovery and hardness of the mouthpiece generally increase. However, when the filter wrapper 122 is made of paper having a thickness of 50 μm and a basis weight of 27 g / m ² , which is a general-purpose filter wrapper, the influence on the compression repeatability is small.

According to the smoking article 1 with a filter according to the first embodiment, since both the arithmetic mean roughness of the outer peripheral surface of the outer wrapper 13 and the compression recovery of the mouthpiece are satisfied, the user can use the mouthpiece when smoking. It is possible to obtain the effect that the feeling (feeling of holding) when holding it with the lips is good.

In the first embodiment, an example in which the entire mouthpiece portion, which is a filter wound by the outer wrapper, satisfies the arithmetic mean roughness and the compression repeatability has been described, but the present invention is not limited to this example. For example, it may be only the downstream end of the mouthpiece that satisfies these physical properties when the user holds the mouthpiece with his lips when smoking. The downstream end is, for example, a range of 15 mm from the downstream end side, preferably a range of 10 mm from the downstream end. Even in such a configuration, the portion where the user holds the mouthpiece with his lips during smoking satisfies the above-mentioned physical properties, so that a smoking article with a filter that is comfortable to hold can be obtained.

In the smoking article with a filter according to the first embodiment, the hardness of the filter wrapped with the outer wrapper is preferably less than 90%, more preferably 80% or more and less than 90%, still more preferably. It is 85 or more and less than 90. It is preferable that the hardness of the mouthpiece is not extremely high for the comfort of holding a smoking article with a filter.

In the first embodiment, an example in which the filter wrapper is composed of one sheet has been described, but the filter wrapper may be configured in which a plurality of filter wrappers are bonded with an adhesive or the like.

(Second Embodiment)
The smoking article 1 with a filter according to the second embodiment has the same configuration as that of the first embodiment shown in FIG. 3, but differs only in the materials constituting the outer wrapper 13 and the filter wrapper 122.

(A) Outer wrapper (13)
The outer wrapper 13 is not particularly limited as long as it is a material in which the arithmetic mean roughness of the outer peripheral surface when wound around the filter is less than 2.0 μm, more preferably less than 1.0 μm. The outer wrapper 13 is made of, for example, the same material as the outer wrapper 13 described in the first embodiment, and has a thickness and a basis weight smaller than those described in the first embodiment. The outer wrapper 13 may be, for example, ordinary coated paper.

(B) Filter wrapper (122)
The filter wrapper 122 preferably has a folding recovery angle of 60 degrees or more, more preferably 100 degrees or more, and further preferably 100 degrees or more and 120 degrees or less. The filter wrapper 122 is made of, for example, the same material as the base material layer described in the first embodiment. The filter wrapper 122 is preferably a polyethylene-based resin, a polyolefin-based resin such as polypropylene, or a polyester-based resin film, and more preferably polyester or a polyolefin as a main component. The filter wrapper 122 is preferably a biaxially stretched film in order to increase rigidity and strength and increase the folding recovery angle.

The basis weight of the filter wrapper 122, to obtain the appropriate compression recovery property in the suction unit is preferably less than 50 g / ^{m 2} or more 200 g / ^{m 2,} more preferably less than 100 g / ^{m 2} or more 200 g / ^{m 2} is there. The filter wrapper 122 is preferably 50 μm or more and less than 150 μm, and more preferably 100 μm or more and less than 150 μm in order to obtain appropriate compression recovery in the mouthpiece. When the basis weight and thickness of the outer wrapper 13 are large, the folding recovery angle is generally improved, and the compression recovery property of the mouthpiece is improved.

The basis weight of the sum of the outer wrapper 13 and the filter wrapper 122, to obtain the appropriate compression recovery property in the suction unit is preferably less than 50 g / ^{m 2} or more 200 g / ^{m 2,} more preferably 100 g / m ² or more and less than 200 g / m ² . The total basis weight of the outer wrapper 13 and the filter wrapper 122 is preferably 50 μm or more and less than 150 μm, and more preferably 100 μm or more and less than 150 μm in order to obtain compression recovery of the mouthpiece.

Also in the configuration according to the second embodiment, as in the case of the smoking article 1 with a filter according to the first embodiment, it is said that the user has a good sensation (feeling of holding) when holding the mouthpiece with his lips when smoking. The effect can be obtained.

In the second embodiment, an example in which the filter wrapper is composed of one sheet has been described, but the filter wrapper may be a plurality of filter wrappers bonded with an adhesive or the like. In that case, it is preferable that a plurality of filter wrappers adhered to each other have the above-mentioned folding recovery angle. It is preferable that the total basis weight and thickness of the plurality of filter wrappers are within the above ranges.

(Third Embodiment)
FIG. 4 is an enlarged schematic cross-sectional view showing a part of the cigarette 2 with a filter according to the third embodiment. The filtered cigarette 2 according to the third embodiment has the same configuration as the filtered cigarette 1 according to the first embodiment, except that the filter configuration is different.

The filter 22 includes two filter segments 22a and 22b. Specifically, the filter 22 is a so-called dual filter composed of a first filter segment 22a arranged on the upstream side and a second filter segment 22b arranged on the downstream side.

The first filter segment 22a includes a first filter material 221a and a first inner filter wrapper 222a around which the first filter material 221a is wound. The second filter segment 22b includes a second filter material 221b and a second inner filter wrapper 222b around which the second filter material 221b is wound. The first filter segment 22a and the second filter segment 22b are wound and connected by an outer filter wrapper 22c that covers their outer peripheral surfaces. The outer wrapper 23 is wound around the downstream end of the cigarette rod 11 and the outer peripheral surface of the filter 22 to connect the cigarette rod 11 and the filter 22.

In the third embodiment, of the first and second filter segments 22a and 22b, at least the portion corresponding to the second filter segment 22b located on the downstream end side is after applying the compression load 2.5N. The compression recovery is 60% or more, more preferably 60% or more and less than 80%, and further preferably 60% or more and less than 70%. The outer wrapper has an arithmetic mean roughness of the outer peripheral surface of at least the portion corresponding to the second filter segment 22b of less than 2.0 μm, more preferably 1.5 μm or less, still more preferably 1.0 μm or less. ..

(A) Outer wrapper (23)
The outer wrapper 23 is made of, for example, the same material as the outer wrapper 13 described in the first embodiment.

(B) Filter material (221a, 221b)
The first filter material 221a and the second filter material 221b are made of, for example, the same material as the filter material 121 described in the first embodiment.

(C) Filter wrapper (222a, 222b, 22c)
The first and second inner filter wrappers 222a and 222b are made of the same material as the filter wrapper 122 described in the first embodiment. The outer filter wrapper 22c is made of, for example, the same material as the filter wrapper 122 according to the first embodiment.

In the configuration according to the third embodiment, similarly to the smoking article with a filter according to the first embodiment, the downstream end portion that comes into contact with the lips when the user holds the mouthpiece with the lips during smoking is formed. Satisfies the arithmetic mean roughness of the outer wrapper and the compressibility of the mouthpiece. Therefore, also in the configuration according to the third embodiment, it is possible to obtain the effect that the user has a good sensation (holding comfort) when the mouthpiece is held by the lips when smoking, as in the first embodiment. ..

In the third embodiment, an example in which the first and second filter segments are made of the same material has been described, but the present invention is not limited to this. For example, the first filter segment is a charcoal filter in which an adsorbent such as activated carbon is dispersed and added to the gaps between the fibers of the acetyl cellulose fibers, and the second filter segment is a white filter material made of ordinary acetyl cellulose fibers. It may be configured to be a dual filter having different functions.

The smoking article with a filter according to the third embodiment is not limited to the dual filter, and may have three or more filter segments. The smoking article with a filter may be configured to have one hollow portion between two filter segments, or may be configured to include a destructive perfume pessel or flavor particles in the hollow portion. Even in these configurations, if at least the physical properties of compression multiplex and arithmetic mean roughness are satisfied at the locations corresponding to those located on the downstream end side among the plurality of filter segments constituting the filter, the first The same effect as that of the smoking article with a filter according to the embodiment can be obtained.

(Fourth Embodiment)
The smoking article with a filter according to the fourth embodiment has the same configuration as the smoking article 2 with a filter according to the third embodiment shown in FIG. 4, but has the outer wrapper 23, the outer filter wrapper 22c, and the first. Only the materials that make up the inner filter wrapper 222b of 2 are different.

(A) Outer wrapper (23)
The outer wrapper is not particularly limited as long as it is a material in which the arithmetic mean roughness of the outer peripheral surface when wound around the filter is less than 2.0 μm, more preferably less than 1.0 μm. The outer wrapper is made of, for example, the same material as the outer wrapper 13 described in the first embodiment, and has a thickness and a basis weight less than those described in the first embodiment. The outer wrapper 23 may be, for example, ordinary coated paper.

(B) Filter wrapper (222a, 222b, 22c)
In the fourth embodiment, the first and second filter materials 221a and 221b are wound around two filter wrappers, the first and second inner filter wrappers 222a and 222b and the outer filter wrapper 22c, respectively. ..

The material of the first inner filter wrapper 222a is not particularly limited, and is composed of, for example, the same material as the filter wrapper 122 described in the first embodiment.

The material of the second inner filter wrapper 222b and the material of the outer filter wrapper 22c are formed of, for example, the same material as the base material layer described in the first embodiment. The material of the second inner filter wrapper 222b and the outer filter wrapper 22c are preferably polyethylene-based resin, polyolefin-based resin such as polypropylene, or polyester-based resin film, and more preferably a biaxially stretched film containing polyester or polyolefin as a main component. Is.

The second inner filter wrapper 222b and the outer filter wrapper 22c preferably have a folding recovery angle of 60 degrees or more, more preferably 100 degrees or more, still more preferably 100 degrees or more and 120 degrees or less in a state of being adhered to each other. ..

The total basis weight of the second inner filter wrapper 222b and the outer filter wrapper 22c is preferably 50 g / m ² or more and less than 200 g / m ^{2 in} order to obtain compression recovery of the mouthpiece, and more preferably 100 g / m / ^2. It is m ² or more and less than 200 g / m ² . The total thickness of the second inner filter wrapper 222b and the outer filter wrapper 22c is preferably 50 μm or more and less than 150 μm, and more preferably 100 μm or more and less than 150 μm in order to obtain compression recovery of the mouthpiece. When the basis weight and thickness of the outer wrapper are large, the folding recovery angle is generally improved, and the compression recovery of the mouthpiece is improved.

The outer wrapper 23, the basis weight of the sum of the second inner filter wrapper 222b and outer filter wrapper 22c is, for obtaining the compression recovery of the suction unit is preferably less than 50 g / ^{m 2} or more 200 g / ^{m 2} , More preferably 100 g / m ² or more and less than 200 g / m ² . The total thickness of the outer wrapper 23, the second inner filter wrapper 222b, and the outer filter wrapper 22c is preferably 50 μm or more and less than 150 μm, more preferably 100 μm or more and less than 150 μm, in order to obtain compression recovery of the mouthpiece. Is.

Also in the configuration according to the fourth embodiment, the downstream end that is in contact with the user when holding the mouthpiece with the lips during smoking satisfies the arithmetic mean roughness of the outer wrapper and the compression repeatability of the mouthpiece. There is. Also in the configuration according to the fourth embodiment, as with the smoking article with a filter according to the third embodiment, the effect that the user has a good sensation (feeling of holding) when holding the mouthpiece with the lips during smoking is good. Can be obtained.

In the fourth embodiment, an example in which the filter material arranged at the downstream end is wound by two filter wrappers has been described, but the configuration is such that three or more filters are wound. May be good. In that case, it is preferable that the plurality of bonded filter wrappers have the above-mentioned folding recovery angle. Further, it is preferable that the total basis weight and thickness of the plurality of filter wrappers are within the above-mentioned ranges.

(Examples and comparative examples)
Hereinafter, embodiments will be further described with reference to Examples and Comparative Examples.

The tests (1) to (5) described below were carried out using the outer wrappers, filters and test samples according to Examples 1 to 7 and Comparative Examples 1 to 4 shown in Table 1. The test sample is a filter wrapped with an outer wrapper prepared by the method described later. In the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4, (1) arithmetic mean roughness and (2) folding recovery angle were measured. Then, using the test sample, (3) compression recovery, (4) hardness, and (5) sensory evaluation of gripping comfort were performed.

Table 1 shows the product names, basis weights, thicknesses, arithmetic mean roughness and fold recovery angles of the outer wrappers used in Examples 1 to 7 and Comparative Examples 1 to 4, the amount of plasticizer in the filter, and the test samples. The results of the sensory test of compression repeatability, hardness and gripping comfort are shown.

First, the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4 will be described. In Examples 1 to 3, Peach Coat (registered trademark) (WER-135DS, Nisshinbo Paper Products Co., Ltd.), which is a synthetic paper, was used. The peach coat (registered trademark) is composed of a base material layer which is a polyethylene terephthalate film which is a polyester resin and a surface layer which is a white pigment coating layer. In Examples 4 and 5, a synthetic paper, Yupotrace (registered trademark) (TPRA # 60, Yupo Corporation) was used. In Examples 6 and 7, Yupotrace (registered trademark) (TPRA # 90, Yupo Corporation) was used. Yupotrace (registered trademark) is composed of a base material layer which is a biaxially stretched film made of a polypropylene resin and a surface layer which is a paper-like layer made of a resin. On the other hand, in Comparative Example 1, a general-purpose chip paper made of paper used for a cigarette with a filter such as Mevius Light (registered trademark) of Japan Tobacco Inc. was used. In Comparative Examples 2 to 4, cellophane (thickness 33 g / m ² , thickness 30 μm) was used.

Next, the filters according to Examples 1 to 7 and Comparative Examples 1 to 4 will be described. As the filter material, 1.9 g / 9000 m of filament denier acetyl cellulose fiber (Daicel Co., Ltd.) was used. As the filter wrapper, a general-purpose filter wrapper, paper having a thickness of 50 μm and a basis weight of 27 g / m ² (manufactured by Nippon Paper Papylia Co., Ltd.) was used.

In the filters according to Example 1, Comparative Examples 1 and 2, a filter material composed of only acetyl cellulose fibers was used. In the filters according to Examples 2, 4, 6 and Comparative Example 3, a filter material in which 9.0% by weight of a plasticizer, which is triacetin, was added to the acetyl cellulose fibers was used. Further, in the filters according to Examples 3, 5, 7 and Comparative Example 4, a filter material in which 17.0% by weight of a plasticizer, which is triacetin, was added to the acetyl cellulose fibers was used.

The test sample was prepared by the following method. The filter materials according to Examples 1 to 7 and Comparative Examples 1 to 4 were wound and cut by a conventional method with a filter wrapper to prepare filters having a length of 27 mm and a diameter of 24.2 mm, respectively. Next, the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4 were wrapped around each filter using double-sided tape. In this test sample, the double-sided tape is applied only to the joint of the outer wrapper, so that it does not affect the sensory test of gripping comfort.

The contents of the tests (1) to (5) will be described below.

(1) Arithmetic Mean Roughness The arithmetic mean roughness was measured for the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4. The arithmetic mean roughness was measured on the surface of the outer wrapper that was used as the outer peripheral surface when wound around the filter. The arithmetic mean roughness was measured using a surf test SJ-210 (trade name) manufactured by Mitutoyo Co., Ltd. A Gaussian filter was used for the filtering in the measurement of the arithmetic mean roughness. Further, as the detector, one having a stylus tip R = 2 μm and a tip angle of 60 ° was used. The measurement conditions were obtained by setting the standard conditions to conform to ISO 1997 and setting the roughness curve R to the cutoff values λc = 2.5 mm, λs = 8 μm, and the number of sections (N) 4.

(2) Fold recovery angle The fold recovery angle was measured for the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4. As the evaluation machine, a rubber roller and a metal roller that are in contact with each other so as to have a nip pressure of 0.1 MPa were used. First, the outer wrappers according to Examples 1 to 7 and Comparative Examples 1 to 4 are cut to a size of 5.5 cm × 5.5 cm, and then one side and the opposite side are cut while bending so as not to make a crease. It was made into a loop shape. Next, the outer wrapper was passed between the rubber roller and the metal roller of the evaluation machine described above, and the outer wrapper folded at 180 degrees was quickly moved onto the laboratory table, and the folding recovery angle (°) after 30 seconds was measured.

(3) Compression recovery The compression recovery test was performed on the test samples according to Examples 1 to 7 and Comparative Examples 1 to 4. The compression repeatability is calculated from the compression deformation amount-compression restoration force curve obtained by plotting the compression restoration force [N] corresponding to the compression deformation amount [mm] as shown in FIG. The amount of compression deformation [mm] is the amount of deformation of the diameter of the test sample compressed by the compression load. The compression restoring force [N] is a force that tries to return to the original shape from the compressed test sample.

A rheometer (CR-3000EX-S manufactured by Sun Scientific Co., Ltd.) was used as an evaluation machine for measuring the compression deformation amount-compression restoration force curve. FIG. 5 is a schematic view showing a method for measuring compression repeatability. The rheometer includes a measuring table 103 on which a test sample is placed and a cylindrical plunger 104 having a diameter of 10 mm. Next, the test sample 105 was placed on the upper surface of the measuring table 103 of the rheometer so that the side surfaces of the test sample 105 were in contact with each other. When the plunger 104 does not apply a compressive load to the test sample 105 ((a) in FIG. 5), the compressive restoring force from the test sample 105 is 0 N, and the amount of compressive deformation is 0 mm (point A). Next, the columnar plunger 104 is vertically advanced at a speed of 13 mm / min until the compressive load applied to the test sample 105 becomes 2.5 N, and the test sample 105 is compressed in the vertical direction ((b) in FIG. 5). )). The compression restoration force [N] corresponding to the compression deformation amount [mm] at this time is recorded (curves AB). Then, when the compression load is 2.5 N (compressive resiliency 2.5 N) was reached, stop the compressing operation by the plunger 104 to record the amount of compressive deformation _T B mm at that time (point B). After that, the compression operation is stopped so that the plunger 104 can move freely in the vertical direction, and the compression corresponding to the compression deformation amount mm when the shape is restored until the restoration force from the test sample 105 becomes 0N. Record the restoring force [N] (curve BC). Then, the compression resiliency upon reaching the 0N, record the amount of compressive deformation T _C mm at that time (point C). As a result, in the compression deformation amount-compression restoring force curve as shown in FIG. 1, different curves were shown at the time of compression (curve AB) and at the time of restoration (curve BC). 1, to the point that the amount of compressive deformation T _B mm and compressive resilience 0N a point D.

In the compression deformation amount-compression restoration force curve, the work amount (area of the region ABD) at the time of compression (curve AB) and the work amount (region CBD) at the time of restoration (curve BC) are calculated respectively. The compression recovery [%] is calculated by the following formula.

Compression recovery [%] = (area of region CBD) / (area of region ABD) x 100 [%]
(4) Hardness A hardness test was performed on the test samples according to Examples 1 to 7 and Comparative Examples 1 to 4. As an evaluation machine, a DD60A type Densmeter manufactured by Borgwald was used. Hardness is determined by applying a 2 kg load to 10 test samples for 20 seconds and measuring the average recessed diameter of the filter wrapped with an outer wrapper. This test is performed at an ambient temperature of 22 ± 2 degrees Celsius according to the standard test method for this instrument.

Such a device comprises two pairs of parallel metal cylinders, each cylinder 16 cm long and 10 mm in diameter. A first pair of cylinders is placed 16 mm below each other in parallel to act as a support for the test samples, and the 10 test samples are placed in parallel so that the test sample passes these first cylinder pairs. Arrange at equal intervals. During the test, the first cylinder pair remains stationary. The second cylinder pair is aligned with the first cylinder pair so that the first cylinder pair and the second cylinder pair come close to each other with the test sample in between during the test. The second cylinder pair is arranged so as to move towards the 10 test samples and a load of 2 kg is applied over the 10 test samples. At this time, the first and second cylinder pairs each come into contact with the test sample at 20 points. The load is held on the test sample for 20 seconds and the test is completed after measuring the diameter of the compressed test sample. During the test, the test samples are placed apart so that they do not come into contact with each other. A frame can be used to support the tips of the 10 test samples to help ensure that the 10 test samples are evenly spaced parallel to each other during the test. This test method is the same as the hardness measuring method described in Japanese Patent Application Laid-Open No. 2016-523565.

(5) Sensory evaluation of gripping feeling The test samples according to Examples 1 to 7 and Comparative Examples 1 to 4 were actually held by a panel of 23 people, and the mouthpiece was held by the lips (holding comfort). Was sensory evaluated. In addition, the panel of 23 people said "7" if they felt that they liked the feeling very much, "6" if they felt that they liked it, and "5" if they felt that they liked it a little. "4" if you feel that you can't say either, "3" if you feel a little disliked, "2" if you feel disliked, "1" if you feel very disliked It is an average value after being evaluated on a 7-point scale.

As is clear from the results in Table 1, the test samples according to Examples 1 to 7 in which the arithmetic mean roughness of the outer peripheral surface of the outer wrapper is less than 2.0 μm and the compression recovery is 60% or more are sensory evaluations. Was a high value of 4.0 to 5.1. The test samples according to Examples 1 to 7 all have a folding recovery angle of the outer wrapper of 100 degrees or more. Further, among Examples 1 to 7, in Examples 1, 4 and 6 in which the hardness of the test sample was less than 90%, the sensory evaluation was 4.6 to 5.1, which was a particularly high value. In particular, in Example 1 in which the arithmetic mean roughness is 0.7 μ or less, the compression recovery is 61%, the hardness is 89%, and the folding recovery angle is 100 degrees, the gripping comfort is a numerical value of 5.1. It was the highest.

On the other hand, in Comparative Examples 1 to 4 in which the arithmetic mean roughness was 2.0 or more, the sensory evaluation was a low value of less than 4.0. In Comparative Examples 1 to 4, the folding recovery angles of the outer wrappers were all less than 60 degrees.

As described above, the test sample in which the arithmetic mean roughness of the outer peripheral surface of the outer wrapper according to Examples 1 to 7 is less than 2.0 μm and the compression recovery is 60% or more is highly evaluated in the sensory evaluation. It was shown to be more attractive.

Although some embodiments have been described, these embodiments are examples and do not limit the scope of the invention. These embodiments can be implemented in various other forms, and various modifications can be made without departing from the gist of the invention. These embodiments and modifications thereof are included in the scope and gist of the invention, and are included in the scope of the invention described in the claims and the equivalent scope thereof.
Hereinafter, the inventions described in the claims of the original application of the present application will be added.
[1] Aerosol generating member;
A filter comprising a filter material and one or more filter wrappers around the outer peripheral surface of the filter material; and
An outer wrapper around the end of the aerosol generating member and the outer peripheral surface of the filter;
With
The outer peripheral surface of the outer wrapper has an arithmetic mean roughness of less than 2.0 μm.
The filter wrapped with the outer wrapper has a filter having a compression recovery property of 60% or more after applying a compressive load of 2.5 N in the radial direction to a range of 10 mm in length. Smoking goods.
[2] The smoking article with a filter according to [1], wherein the arithmetic mean roughness of the outer peripheral surface of the outer wrapper is 1.0 μm or less.
[3] The smoking article with a filter according to [1] or [2], wherein the outer wrapper or the one or more filter wrappers have a folding recovery angle of 60 degrees or more.
[4] The smoking article with a filter according to [3], wherein the folding recovery angle of the outer wrapper or the one or more filter wrappers is 100 degrees or more.
[5] The smoking article with a filter according to [4], wherein the folding recovery angle of the outer wrapper or the one or a plurality of filter wrappers is 100 degrees or more and 120 degrees or less.
[6] The smoking article with a filter according to any one of [1] to [5], wherein the outer wrapper is a sheet containing a plurality of layers.
[7] The smoking article with a filter according to [6], wherein the sheet containing the plurality of layers includes a base material layer made of a film containing polyolefin or polyester as a main component.
[8] The smoking article with a filter according to [7], wherein the base material layer is a biaxially stretched film.
[9] The smoking article with a filter according to [7] or [8], wherein the sheet containing the plurality of layers further includes a surface layer provided on one side or both sides of the base material layer.
[10] The smoking article with a filter according to [9], wherein the surface layer contains an inorganic filler.
[11] The smoking article with a filter according to any one of [1] to [10], wherein the filter wrapped with the outer wrapper has a hardness of less than 90%.
[12] The smoking article with a filter according to any one of claims [1] to [11], wherein the outer wrapper has a basis weight of 100 g / m ² or more.
[13] The smoking article with a filter according to any one of [1] to [12], wherein the outer wrapper has a thickness of 100 μm or more.
[14] The filter wrapper according to any one of [1] to [11], wherein the one or more filter wrappers are a film containing a polyolefin as a main component or a film containing polyester as a main component. Filtered smoking items.
[15] The smoking article with a filter according to [14], wherein the one or more filter wrappers are biaxially stretched films.
[16] The smoking article with a filter according to [14] or [15], wherein the total basis weight of the one or a plurality of filter wrappers is 100 g / m ² or more.
[17] The smoking article with a filter according to any one of [14] to [16], wherein the total thickness of the one or a plurality of filter wrappers is 100 μm or more.

1 ... Smoking article with filter according to the first embodiment 11 ... Aerosol generating member (cigarette rod) 111 ... Cigarette chopping 112 ... Cigarette paper 12, 22 ... Filter 121 ... Filter material 13, 23 ... Outer wrapper 2 ... Third Smoking article with filter according to the embodiment 22a ... 1st filter segment 22b ... 2nd filter segment 221a ... 1st filter material 221b ... 2nd filter material 222a ... 1st inner filter wrapper 222b ... 2nd inner side Filter wrapper 22c ... Outer filter wrapper

Claims (16)

Aerosol generator;
A filter comprising a filter material and one or more filter wrappers around the outer peripheral surface of the filter material; and an outer wrapper around the ends of the aerosol generating member and the outer peripheral surface of the filter;
With
The outer peripheral surface of the outer wrapper has an arithmetic mean roughness of less than 2.0 μm.
The filter wound in the outer wrapper, for a range of length 10 mm, Ri der at least 60% compression recovery properties after applying a compressive load 2.5N diametrically,
The filter wound in the outer wrapper, the filter with a smoking article hardness, characterized in der Rukoto less than 90%. The smoking article with a filter according to claim 1, wherein the arithmetic mean roughness of the outer peripheral surface of the outer wrapper is 1.0 μm or less. The smoking article with a filter according to claim 1 or 2, wherein the outer wrapper or the one or more filter wrappers have a folding recovery angle of 60 degrees or more. The smoking article with a filter according to claim 3, wherein the folding recovery angle of the outer wrapper or the one or more filter wrappers is 100 degrees or more. The smoking article with a filter according to claim 4, wherein the folding recovery angle of the outer wrapper or the one or more filter wrappers is 100 degrees or more and 120 degrees or less. The smoking article with a filter according to any one of claims 1 to 5, wherein the outer wrapper is a sheet containing a plurality of layers. The smoking article with a filter according to claim 6, wherein the sheet containing the plurality of layers includes a base material layer made of a film containing polyolefin or polyester as a main component. The smoking article with a filter according to claim 7, wherein the base material layer is a biaxially stretched film. The smoking article with a filter according to claim 7 or 8, wherein the sheet containing the plurality of layers further includes a surface layer provided on one side or both sides of the base material layer. The smoking article with a filter according to claim 9, wherein the surface layer contains an inorganic filler. The smoking article with a filter according to any one of claims 1 to 10 , wherein the outer wrapper has a basis weight of 100 g / m ² or more. The smoking article with a filter according to any one of claims 1 to 11 , wherein the thickness of the outer wrapper is 100 μm or more. The filtered smoking article according to any one of claims 1 to 10 , wherein the one or more filter wrappers are a film containing a polyolefin as a main component or a film containing a polyester as a main component. .. The smoking article with a filter according to claim 13 , wherein the one or more filter wrappers are biaxially stretched films. The smoking article with a filter according to claim 13 or 14 , wherein the total basis weight of the one or a plurality of filter wrappers is 100 g / m ² or more. The smoking article with a filter according to any one of claims 13 to 15 , wherein the total thickness of the one or a plurality of filter wrappers is 100 μm or more.

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