WO2021176524A1

WO2021176524A1 - Filter, smoking article, and flavor inhalation article

Info

Publication number: WO2021176524A1
Application number: PCT/JP2020/008711
Authority: WO
Inventors: 哲也本溜
Original assignee: 日本たばこ産業株式会社
Priority date: 2020-03-02
Filing date: 2020-03-02
Publication date: 2021-09-10
Also published as: TW202133743A; EP4115750A1; JP7310008B2; EP4115750A4; JPWO2021176524A1

Abstract

This filter comprises: a first filter body that has a first end face disposed on the side of a mouthpiece and a second end face disposed on the side opposite to the mouthpiece side; and a second filter body that is disposed at the second-end-face side of the first filter body and has a third end face that faces the second end face. The first and second filter bodies are respectively formed of either a sheet of paper or a sheet of nonwoven cloth. The void quantity as seen in the first end face of the first filter body is less than that as seen in the third end face of the second filter body.

Description

Filters, smoking items, and flavor suction items

The present invention relates to a filter, a smoking article, and a flavor suction article.

For example, Japanese Patent Application Laid-Open No. 2014-515933 discloses a paper filter coated on the surface of a biodegradable base material (paper).

For example, when a filter (paper filter) obtained by folding a paper sheet is used, the user can usually see a large number of holes by folding processing on the mouthpiece side. Therefore, for example, when a paper filter is used, the filter is required to improve the aesthetic appearance. Further, the filter is required to control the degree of filtration such as the amount of tar and the amount of nicotine.

Japanese Patent Application Laid-Open No. 7-166 Japanese Patent Application Laid-Open No. 7-8254 Japan Special Table 2014-515933

The present invention provides a filter, a smoking article including a filter, and a flavor suction article containing a filter, which are formed of a paper sheet or a non-woven fabric sheet, enhance aesthetics, and have appropriate filtration characteristics. The purpose is.

The filter according to one embodiment is on the side of a first filter main body having a first end surface on the mouthpiece side and a second end face on the side opposite to the mouthpiece side, and the second end surface of the first filter body. It has a second filter body having a third end face facing the second end face. The first filter main body and the second filter main body are formed of a paper sheet or a non-woven fabric sheet. The amount of voids when the first end surface of the first filter body is viewed is smaller than the amount of voids when the third end surface of the second filter body is viewed.

FIG. 1 is a schematic cross-sectional view of a combustion-type flavor-sucking article including a filter according to the first embodiment. FIG. 2A is a schematic view showing a state in which the first filter main body and the paper sheet serving as the second filter main body pass through the crimp tool so as to have an appropriate crimp depth. FIG. 2B is a schematic view showing a state in which the first filter main body and the paper sheet serving as the second filter main body pass through the crimp tool so as to have an appropriate crimp depth larger than the example shown in FIG. 2A. be. FIG. 3A shows the crimp depth of the paper sheet serving as the first filter main body and the second filter main body after the crimping treatment, and the length per 1 mm of the crimping processed first filter main body and the filter main body serving as the second filter main body. It is a graph which took the ventilation resistance (mmH _{2 O / mm).} FIG. 3B shows the air permeability (CU) of the filter body after the crimping process of the paper sheet serving as the first filter body and the second filter body, and the filter body serving as the first filter body and the second filter body after the crimping process. It is a graph which took the ventilation resistance (mmH _{2 O / mm) per 1 mm of.} FIG. 4A is a photograph showing a mouthpiece side end surface of a first filter plug including a first filter main body, which is formed of a sheet having a crimp depth of 0.6 mm and is viewed from the direction of arrow IV in FIG. FIG. 4B is a photograph showing a mouthpiece side end surface of a first filter plug including a first filter main body, which is formed of a sheet having a crimp depth of 0.3 mm and is viewed from the direction of arrow IV in FIG. FIG. 4C is a photograph showing a mouthpiece side end surface of a first filter plug including a first filter main body, which is formed of a sheet having a crimp depth of 0.1 mm and is viewed from the direction of arrow IV in FIG. FIG. 4D is a photograph showing the mouthpiece side end face of the first filter plug formed by the acetate filter. FIG. 5 is a schematic graph showing the void area of the mouthpiece side end face of the filter shown in FIGS. 4A to 4D. FIG. 6 shows the filter structure, filter body length, aeration resistance, tar amount, nicotine amount, carbon monoxide amount, and number of smoke absorptions of the first to fourth lots of the combustion-type flavor suction article with the tar amount set to 6 mg. It is a schematic diagram which shows. FIG. 7 shows the filter structure, filter body length, aeration resistance, tar amount, nicotine amount, carbon monoxide amount, and number of smoke absorptions of the fifth to seventh lots of the combustion-type flavor suction article with the tar amount set to 1 mg. It is a schematic diagram which shows. FIG. 8 shows the overall appearance difference of the cigarettes of the second to fourth lots with respect to the first lot, the appearance difference of the mouthpiece end face of the filter, and the sensory evaluation scores of the likes and dislikes by 19 evaluators. It is a schematic diagram. FIG. 9 is a schematic graph showing the sensory evaluation results by 19 evaluators of the overall appearance difference of the cigarettes of the second lot to the fourth lot with respect to the first lot. FIG. 10 is a schematic graph showing the sensory evaluation results by 19 evaluators of the appearance difference of the mouthpiece end faces of the cigarettes of the second lot to the fourth lot with respect to the first lot. FIG. 11 is a schematic graph showing the sensory evaluation results of 19 evaluators regarding the likes and dislikes of cigarettes from the second lot to the fourth lot with respect to the first lot. FIG. 12 shows the taste (sweetness, smoke) of the cigarettes of the second lot and the fourth lot with respect to the first lot when the taste of the first lot (sweetness, smoke volume, irritation, tobacco feeling) is set to three points. It is a schematic diagram which shows the score of the sensory evaluation by 19 evaluators of volume feeling, stimulation, tobacco feeling). FIG. 13 shows the taste (sweetness, smoke) of the cigarettes of the second lot and the fourth lot with respect to the first lot when the taste of the first lot (sweetness, smoke volume, irritation, tobacco feeling) is set to three points. It is a schematic graph which shows the sensory evaluation result by 19 evaluators of volume feeling, stimulation, tobacco feeling). FIG. 14 shows the taste (sweetness, smoke) of the sixth lot and the seventh lot of cigarettes with respect to the fifth lot when the taste of the fifth lot (sweetness, smoke volume, irritation, tobacco feeling) is set to three points. It is a schematic diagram which shows the score of the sensory evaluation by 16 evaluators of volume feeling, stimulation, tobacco feeling). FIG. 15 shows the taste (sweetness, smoke) of the sixth lot and the seventh lot of cigarettes with respect to the fifth lot when the taste of the fifth lot (sweetness, smoke volume, irritation, tobacco feeling) is set to three points. It is a schematic graph which shows the sensory evaluation result by 16 evaluators of volume feeling, stimulation, tobacco feeling). FIG. 16A is a schematic view showing a state in which the filter main body is folded in the pipe through a plurality of guides of the filter main body molding machine in a state where the end portions of the plurality of sheets of the non-woven fabric are staggered and stacked. FIG. 16B is a schematic view showing a state in which the laminated non-woven fabrics are viewed by shifting the ends of the plurality of sheets from the direction indicated by the arrow 16B in FIG. 16A. FIG. 17 is a schematic cross-sectional view of a non-combustion heated flavor suction article including the filter according to the second embodiment. FIG. 18 is a schematic cross-sectional view of a non-combustion heated flavor suction article including the filter according to the third embodiment.

Hereinafter, the filter used for the flavor suction article and the flavor suction article will be described with reference to the drawings.

The member for flavor suction article according to the embodiment includes a base member. The base member is, for example, a member for a flavor-sucking article used in combination with a tobacco material. The base member may be at least one of a member constituting a combustion-type flavor suction article, a member constituting a non-combustion heating type flavor suction article, and a member constituting a non-heated flavor suction article.

The tobacco material is, for example, tobacco chopped. The material for tobacco engraving is not particularly limited, and known materials such as lamina and middle bone can be used. The tobacco material may be in the form of granules, for example, in addition to the tobacco chopped.

Combustion-type flavor suction articles are smoking articles that provide consumers with tobacco flavor by burning tobacco materials.

The non-combustion heating type flavor suction article is an article that provides consumers with tobacco flavor by heating the tobacco material without burning it. The heating temperature of the non-combustion heating type flavor suction article can be appropriately set, but it ranges from, for example, a temperature close to room temperature to a temperature at which the tobacco material does not burn. As an example, the heating temperature of the non-combustion heating type flavor suction article is, for example, about 30 ° C. to 350 ° C.

The non-heated flavor suction article is an article that provides the tobacco flavor to the consumer without burning or heating the tobacco material.

[First Embodiment]
In the first embodiment, a cigarette which is a typical example of the combustion type flavor suction article (smoking article) 10 containing the tobacco material will be described. In the first embodiment, an example of the cigarette 10 will be described with reference to FIGS. 1 to 16B.

FIG. 1 is a cross-sectional view of the cigarette 10. The cigarette 10 includes a tobacco rod 12, a filter 14, and a tip paper 16. The total length of the cigarette 10 is, for example, about 65 mm to 100 mm. The outer diameter of the cigarette 10 is, for example, about 5 mm to 10 mm.

The tobacco rod 12 includes a tobacco material (tobacco chopped) 22 and a wrapping paper 24 that wraps around the tobacco material 22. The tobacco rod 12 according to the present embodiment has, for example, a diameter of about 7 mm and a length of about 83 mm.

The filter 14 has a first filter plug 32 on the mouthpiece side, a second filter plug 34 on the tobacco rod 12 side, and a molded paper 36 that winds around the outer circumferences of the first filter plug 32 and the second filter plug 34. Let L1 be the length of the first filter plug 32 along the longitudinal axis L, which will be described later, and let L2 be the length of the second filter plug 34 along the longitudinal axis L.

The first filter plug 32 has a first filter main body (filter element, filter medium) 42 and a first winding paper (cylindrical portion) 44 that winds the outer circumference of the first filter main body 42. The length L1 of the first filter plug 32 is the same as the length of the first filter main body 42. The first filter main body 42 has a first end surface (end surface on the mouthpiece side) 46 on the mouthpiece side and a second end surface (end face on the tobacco rod 12 side) 48 on the side opposite to the mouthpiece side. The first end surface 46 and the second end surface 48 are, for example, circular. The first filter body 42 is defined with a longitudinal axis (central axis) L that intersects the first end surface 46 and the second end surface 48. The first end surface 46 is on the mouthpiece side, and the second end surface 48 is on the tobacco rod 12 side. The first end surface 46 is exposed to the outside.

The second filter plug 34 has a second filter main body (filter element, filter medium) 52 and a second winding paper (cylindrical portion) 54 that winds the outer circumference of the second filter main body 52. The length L2 of the second filter plug 34 is the same as the length of the second filter main body 52. The second filter body 52 has a third end surface 56 and a fourth end surface 58. The outer shapes of the third end surface 56 and the fourth end surface 58 are, for example, substantially circular. The second filter body 52 is defined with a longitudinal axis (central axis) L that intersects the third end surface 56 and the fourth end surface 58. The third end surface 56 is on the mouthpiece side, and the fourth end surface 58 is on the tobacco rod 12 side. The third end surface 56 faces or contacts the second end surface 48.

For example, a plasticizer such as triacetin, an adsorbent such as activated carbon, and a fragrance such as menthol can be added to the first filter body 42 and the second filter body 52 as additives.

The molding paper 36 is wound around the outer periphery of the first roll paper 44 and the second roll paper 54, and connects the first roll paper 44 and the second roll paper 54.

The chip paper 16 winds around the outer circumference of the tobacco rod 12 and the filter 14 so as to connect the tobacco rod 12 and the filter 14.

The first filter main body 42 and the second filter main body 52 are formed of a paper sheet or a non-woven fabric sheet. In this embodiment, an example in which the sheet (original fabric) forming the first filter main body 42 and the second filter main body 52 is made of paper will be described. As the paper sheet, a sheet that can be used as a paper filter by a person skilled in the art can be used as it is. In addition to the above, for example, glassine paper can be used as the sheet (original fabric) of the first filter main body 42 and the second filter main body 52.

For example, the paper sheet 102 is crimped by the crimp tool 100 described later. The crimped sheet 102 is folded to form, for example, a rod of approximately 120 mm. After that, it is cut to an appropriate length and formed as a first filter main body 42 and a second filter main body 52. The shape of the first filter main body 42 is maintained by the first winding paper 44. The shape of the second filter main body 52 is maintained by the second winding paper 54. When the first filter main body 42 and the second filter main body 52 are cut to an appropriate length, for example, the first filter main body 42 and the second filter main body 52 have flat end faces (mouthpiece side end faces 46, 56, respectively). , And the tobacco side end faces 48,58).

In the crimping process of the first filter main body 42 and the second filter main body 52, the paper sheet 102 is passed through the crimp tool 100 shown in FIGS. 2A and 2B in the direction of penetrating the paper surface from the front side of the paper surface in FIGS. 2A and 2B. Is executed by. The crimp tool 100 shown in FIGS. 2A and 2B is formed long in the direction of penetrating the paper surface. The length of the crimp tool 100 in the direction of penetrating the paper surface is an appropriate length that allows the sheet 102 to be crimped. It is preferable that the width of the crimp tool 100 is formed larger than the width of the sheet 102.

The crimp tool 100 includes a first base 112, a second base 114, a plurality of first convex portions 116 protruding from the first base 112 toward the second base 114, and a second base 114 to the first base 112. It has a plurality of second convex portions 118 projecting toward the direction. The first base 112 and the second base 114 are relatively close and separable. The amount of protrusion of the plurality of first convex portions 116 with respect to the first base 112 is substantially the same. The plurality of first convex portions 116 are spaced apart from each other at predetermined intervals in the width direction. The amount of protrusion of the plurality of second convex portions 118 with respect to the second base 114 is substantially the same. The plurality of second convex portions 118 are spaced apart from each other at predetermined intervals in the width direction. When the first base 112 and the second base 114 are brought close to each other, the first convex portion 116 and the second convex portion 118 are at positions separated from each other. The distance between the top 116a of the first convex 116a and the top 118a of the second convex 118 along the proximity and separation directions of the first base 112 and the second base 114 (reference numerals D1 and 2B in FIG. 2A). The code D2) inside is used as the amount of meshing. The distances D1 and D2 are preferably, for example, about 1 mm or less. By adjusting the amount of engagement of the crimp tool 100, the crimp depth of the paper sheet 102 can be adjusted. The crimp depth can be replaced by the distance between the tops 116a, 118a of the adjacent

convex portions

116, 118, which are orthogonal to the moving direction of the sheet 102 of the crimp tool 100. Comparing the distance D1 in FIG. 2A and the distance D2 in FIG. 2B, the distance D2 is larger. At this time, the crimp depth of the sheet 102 is larger in the example shown in FIG. 2B than in the example shown in FIG. 2A. While the sheet 102 is being crimped, the first base 112, the second base 114, the first convex portion 116, and the second convex portion 118 of the crimp tool 100 are stopped from moving and their positional relationship is fixed.

The sheet of the first filter main body 42 is crimped (creped) to a crimp depth larger than that of the sheet of the second filter main body 52. That is, the crimp depth of the sheet of the first filter main body 42 (distance between the creases of the sheet) is larger than the crimp depth of the sheet of the second filter main body 52 (distance between the creases of the sheet).

The air permeability of the paper sheet (original fabric) of the first filter main body 42 is, for example, 1000 CU (cholesta unit) to 30,000 CU after the crimp treatment. The air permeability of the paper sheet (original fabric) of the second filter main body 52 is, for example, 0 CU to 10000 CU after the crimp treatment.

Here, in FIG. 3A, the crimping depth of the paper sheet used for the first filter main body 42 and the second filter main body 52 after the crimping treatment is taken on the horizontal axis, and the crimping treatment is performed on the vertical axis to form the first filter main body 42 and the first filter main body 42. _{The graph which took the ventilation resistance (mmH 2} O / mm) per 1mm of the filter body which becomes the 2nd filter body 52 is shown. It is recognized that the greater the crimp depth, the greater the ventilation resistance per unit length. The broken line in FIG. 3A is, for example,
^{y = 17.965x 2 + 6.6054x + 0.1372} (R 2 = 0.9963)
Can be approximated to.

In FIG. 3B, the air permeability (CU) of the first filter main body 42 and the second filter main body 52 after the crimping treatment of the paper sheet used for the first filter main body 42 and the second filter main body 52 is taken as the horizontal axis, and the vertical axis is taken. _{The graph which took the ventilation resistance (mmH 2} O / mm) per 1mm of the filter main body which crimped the shaft and became the 1st filter main body 42 and the 2nd filter main body 52 is shown. The lower left plot in FIG. 3B is an example when the crimp depth is 0 mm. The upper right plot in FIG. 3B is an example when the crimp depth is 0.6 mm. The remaining plots in FIG. 3B are examples with a crimp depth of 0.3 mm. It is recognized that as the crimp depth increases, not only the air permeability resistance but also the air permeability (CU) increases. The broken line in FIG. 3B is, for example,
y = -6 * ^10-9 x ² + 0.0006 x + 0.1687 (R ² = 1)
Can be approximated to.

It is preferable that the ventilation resistance of the first filter main body 42 is higher than the ventilation resistance of the second filter main body 52. The ventilation resistance of the first filter body 42 is, for example, 0 mmH ₂ O / mm to 12 mmH ₂ O / mm, preferably 4 mmH ₂ O / mm to 12 mmH ₂ O / mm. The ventilation resistance of the second filter main body 52 is, for example, 0 mmH ₂ O / mm to 12 mmH ₂ O / mm, preferably 3 mmH ₂ O / mm to 12 mmH ₂ O / mm.

The first roll paper 44, the second roll paper 54, and the molding paper 36 are formed of, for example, pulp. The first roll paper 44, the second roll paper 54, and the molding paper 36 are used to maintain the shapes of the first filter main body 42 and the second filter main body 52. The basis weight of the first roll paper 44, the second roll paper 54, and the molded paper 36 ^{is preferably, for example, 30 g / m 2} or more.

FIGS. 4A to 4C show the mouthpiece side end surface 46 of the filter 14 of the cigarette 10 before smoking, in which the crimp depth by the crimp treatment is appropriately changed. FIG. 4D shows the mouthpiece side end of an acetate filter of a smoking article (here, Winston compact 6 mg manufactured by Japan Tobacco Inc.) as a reference example. The outer diameter of the filter 14 shown in FIGS. 4A to 4D is, for example, 6.8 mm.

Let the example shown in FIG. 4A be sample A, the example shown in FIG. 4B be sample B, the example shown in FIG. 4C be sample C, and the example shown in FIG. 4D (reference example) be sample D.

The void area of each sample A, B, C, and D was measured using a digital microscope (VHX2000) manufactured by KEYENCE. This time, each sample A, B, C, D was photographed at 300 times (10 × 30 times). At this time, two types of images were taken, one with normal exposure and the other with the gain (light adjustment) raised to the maximum.

At the time of shooting, focus with normal light intensity. After that, the image is taken in a state where the color of the end face 46 is whitened by maximizing the light intensity. By doing so, the end faces 46 of each of the samples A, B, C, and D can be easily extracted by the luminance value.

In the area measurement process,
Extraction parameter → Dark threshold: 49 (35 for tobacco rod)
If there is a shadowy part that removes the small molecule removal and fill-in-the-blank check, set the extraction area and execute. Then, the images after extraction (see FIGS. 4A to 4D) and the results of the void area of each image were obtained.

The crimp depth (distance between the tops 116a and 118a of the crimp tool 100) of the first filter body (paper filter) 42 of sample A in FIG. 4A is 0.6 mm. The crimp depth of the first filter body (paper filter) 42 of sample B in FIG. 4B is 0.3 mm. The crimp depth of the first filter body (paper filter) 42 of the sample C of FIG. 4C is 0.1 mm. For the acetate filter shown in FIG. 4D, the crimping treatment is irrelevant.

FIG. 5 shows the void areas of samples A, B, C, and D. As shown in FIGS. 4A to 4C and FIG. 5, the larger the crimp depth of the sheet forming the

filter bodies

42 and 52, the smaller the voids. The void area of the example shown in sample A of FIG. 4A is about ^{1.4 to 1.5 mm 2.} The void area of the example shown in sample B of FIG. 4B is about ^{3.1 to 3.2 mm 2.} The void area of the example shown in sample C of FIG. 4C is about ^{9.3 to 9.4 mm 2.} The void area of the example shown in sample D of FIG. 4D is about ^{0.2 mm 2.}

In the example shown in sample A of FIG. 4A, it was observed that many voids were present near the boundary between the inner peripheral surface of the first winding paper 44 of the mouthpiece side end surface 46 and the outer peripheral surface of the first filter main body 42. .. On the other hand, it was observed that there were almost no voids in the region inside the boundary.

In the example shown in sample D in FIG. 4D, it was observed that many voids were present near the outer peripheral surface of the acetate filter. On the other hand, it was observed that there were almost no voids in the region inside the outer peripheral surface of the acetate filter.

The mouthpiece side end surface 46 of the first filter body (paper filter) 42 shown in sample A of FIG. 4A is the mouthpiece of the acetate filter, particularly in the region between the central axis L of the filter 14 and the outer peripheral surface of the first filter body 42. As with the side edges, it is difficult for the user to see the voids. Therefore, the mouthpiece side end surface 46 of the first filter main body 42 having an appropriately increased crimp depth has an appropriate aesthetic appearance.

The area of the gap when the first end surface 46 of the first filter main body 42 is viewed ^{is preferably 3 mm 2} or less. It depends on various factors such as the basis weight, the air permeability of the sheet, and the air permeability of the filter body, that is, it depends on factors such as the tar amount, the nicotine amount, the carbon monoxide amount, and the number of times of smoking required by the cigarette 10. It is preferable that the amount of voids when the first end surface 46 of the first filter main body 42 is viewed is the same as or larger than the amount of voids on the mouthpiece end surface of the acetate filter.

Consider, for example, a cigarette 10 including a filter 14. As shown in FIGS. 6 and 7, here, lots 1 to 7 were prepared.

6 and 7 show the filter structure, filter body length, ventilation resistance, tar amount, nicotine amount, carbon monoxide amount, and number of smoke absorptions of the first to seventh lots of the combustion-type flavor suction article. The tar value and nicotine value shown in FIGS. 6 and 7 are measured using an automatic smoker. The nicotine level is measured by collecting particles of mainstream smoke under conditions determined by an automatic smoker and melting the collected particles. The tar value is measured by subtracting the weight of nicotine and water from the weight of mainstream smoke particles.

The first lot and the fifth lot are reference examples that do not use a paper filter. In the first lot and the fifth lot, for example, an acetate filter is used for the mouthpiece side filter corresponding to the first filter body 42, and a charcoal filter is used for the tobacco rod 12 side filter corresponding to the second filter body 52.

The first lot is a reference example of the second lot to the fourth lot in which the paper filter is used for the filter 14. The first lot is a cigarette sold in Japan as Winston compact blue 6 of Japan Tobacco Inc., and the tar amount is controlled to around 6 mg.

The fifth lot is a reference example of the sixth lot and the seventh lot in which the paper filter is used for the filter 14. The fifth lot is a cigarette sold in Japan as Winston compact blue 1 of Japan Tobacco Inc., and the tar amount is controlled to around 1 mg.

As described above, the total length of the cigarette 10 of the first lot to the seventh lot is, for example, 83 mm. The compositions of the rods 12 are all substantially the same. The total length of the tobacco rod 12 is, for example, 56 mm, which is substantially the same. The total length of the filter 14 is, for example, about 27 mm, which is common.

For the cigarettes 10 of the second to fourth lots shown in FIG. 6, the tar amount target was set to 6 mg.

The crimp depth of the sheet of the first filter main body 42 on the mouthpiece side of the second lot was set to 0.6 mm, which is the largest between the second lot and the fourth lot. Since the length of the first filter main body 42 is 9 mm, the ventilation resistance of the mouthpiece side filter is 94.7 mmH ₂ O (= 9 (mm) × 10.52 (mmH ₂ O / mm)). The crimp depth of the sheet of the second filter main body 52 on the tobacco rod 12 side of the second lot was set to 0.2 mm. Since the length of the second filter body 52 is 18 mm, the ventilation resistance of the tobacco side filter is calculated to be, for example, 39.24 mmH ₂ O (= 18 (mm)) when the paper normally used as the paper filter is used. × 2.18 (mmH ₂ O / mm)). Here, glassine paper was used for the second filter main body 52 of the second lot. Glassine paper is said to have low ventilation resistance. In the example of the second lot 2, the ventilation resistance of the tobacco side filter is 3.0 mmH ₂ O.

The crimp depth of the sheet of the first filter main body 42 on the mouthpiece side of the third lot was set to 0.3 mm between the second lot and the fourth lot. Since the length of the first filter main body 42 is 15 mm, the ventilation resistance of the mouthpiece side filter is 59.3 mmH ₂ O (= 15 (mm) × 3.96 (mmH ₂ O / mm)). The crimp depth of the sheet of the second filter main body 52 on the tobacco rod 12 side of the third lot was set to 0.2 mm, which is the same as that of the second lot. Since the length of the second filter main body 52 is 12 mm, the ventilation resistance of the tobacco side filter is 26.1 mmH ₂ O (= 12 (mm) × 2.18 (mmH ₂ O / mm)). The ventilation resistance of the second filter main body 52 made of the paper for the paper filter of the third lot is larger than the ventilation resistance of the second filter main body 52 of the second lot made of glassine paper.

The crimp depth of the sheet of the first filter main body 42 on the mouthpiece side of the fourth lot was set to the smallest 0.1 mm. Since the length of the first filter main body 42 is 7 mm, the ventilation resistance of the mouthpiece side filter is 4.1 mmH ₂ O (= 7 (mm) × 0.36 (mmH ₂ O / mm)). The crimp depth of the sheet of the second filter main body 52 on the tobacco rod 12 side of the fourth lot was set to 0.3 mm. Since the length of the second filter body 52 is 20 mm, the ventilation resistance of the tobacco side filter is 79.1 (mmH ₂ O) (= 20 (mm) × 3.96 (mmH ₂ O / mm)).

In each of the filters 14 of the second lot to the fourth lot, the amount of voids (void area) when the first end surface 46 of the first filter main body 42 was viewed was the third end surface 56 of the second filter main body 52. It is smaller than the amount of voids (void area) at the time.

In each of the filters 14 of the second lot to the fourth lot, the ventilation resistance of the first filter main body 42 on the mouthpiece side is higher than the ventilation resistance of the second filter main body 52 on the tobacco rod 12 side, and the first filter main body 42 However, it is preferable that the tobacco rod 12 has a higher filterability for the fluid toward the end face 46 on the mouthpiece side than the second filter main body 52.

For the 6th lot and the 7th lot cigarette 10 shown in FIG. 7, the tar amount target was set to 1 mg.

The crimp depth of the sheet of the first filter main body 42 on the mouthpiece side of the sixth lot was set to 0.6 mm. Since the length of the first filter main body 42 is 15 mm, the ventilation resistance of the mouthpiece side filter is 157.9 mmH ₂ O (= 15 (mm) × 10.52 (mmH ₂ O / mm)). The crimp depth of the sheet of the second filter main body 52 on the tobacco rod 12 side of the sixth lot was set to 0.2 mm. Since the length of the second filter body 52 is 12 mm, the ventilation resistance of the tobacco side filter is 26.1 (mmH ₂ O) (= 12 (mm) × 2.18 (mmH ₂ O / mm)). In the filter 14 of the sixth lot, the ventilation resistance of the first filter main body 42 on the mouthpiece side is higher than the ventilation resistance of the second filter main body 52 on the tobacco rod 12 side, and the first filter main body 42 is the second filter main body 52. Has high filterability compared to.

The crimp depth of the sheet of the first filter main body 42 on the mouthpiece side of the seventh lot was set to 0.2 mm. Since the length of the first filter main body 42 is 12 mm, the ventilation resistance of the mouthpiece side filter is 26.1 mmH ₂ O (= 12 (mm) × 3.96 (mmH ₂ O / mm)). The crimp depth of the sheet of the second filter main body 52 on the tobacco rod 12 side of the seventh lot was set to 0.6 mm. Since the length of the second filter main body 52 is 15 mm, the ventilation resistance of the tobacco side filter is 157.9 (mmH ₂ O) (= 15 (mm) × 10.52 (mmH ₂ O / mm)). In the filter 14 of the 7th lot, the ventilation resistance of the 1st filter main body 42 on the mouthpiece side is lower than the ventilation resistance of the 2nd filter main body 52 on the tobacco rod 12 side, and the 2nd to 4th lots and the 1st lot. Contrary to the 6 lots, the second filter main body 52 has higher filterability than the first filter main body 42.

In the filter 14 of the sixth lot, the amount of voids (void area) when the first end surface 46 of the first filter body 42 is viewed is the amount of voids (voids) when the third end surface 56 of the second filter body 52 is viewed. Area) is smaller than. On the other hand, in the filter 14 of the 7th lot, the amount of voids (void area) when the first end surface 46 of the first filter body 42 is viewed is the amount of voids when the third end surface 56 of the second filter body 52 is viewed. It is larger than (void area).

The first filter body 42 and the second filter body 52 made of paper of the second lot to the fourth lot, the sixth lot, and the seventh lot are made of a tobacco rod by appropriately setting the crimp depth and length of the sheet. Appropriate filtration identification is exhibited for the fluid from 12 to the end face 46 on the mouthpiece side. As in the second lot to the fourth lot, the sixth lot, and the seventh lot, the length of the first filter main body 42 and the second filter main body 52 may be longer. The lengths of the first filter main body 42 and the second filter main body 52 may be the same.

As shown in FIGS. 8 to 11, regarding the first to fourth lots of the cigarette 10 before smoking, the overall appearance difference of the cigarette 10, the appearance difference of the mouthpiece side end face 46, and the appearance of the cigarette 10 are favorable or disliked. A sensory evaluation of the degree was performed. The evaluation standard is the appearance of the first lot (Winston compact 6 mg). That is, the difference in appearance with respect to the first lot and the degree of preference for appearance were evaluated. There are 19 evaluators.

Here, the difference in appearance shown in FIGS. 8 to 10 is a comparison with the cigarette of the first lot. Evaluation of appearance difference is
1 point: There is a considerable difference 2 points: There is a slight difference 3 points: There is a slight difference 4 points: There is not much difference 5 points: There is no difference at all. That is, it can be evaluated that the appearance difference is determined by the user that the closer the average value (AVERAGE) of the evaluation points is to 5 points, the smaller the appearance difference from the first lot. It can be determined that the smaller the standard deviation (STDEV) value, the smaller the variance of the evaluation of 19 people.

As shown in FIGS. 8 and 9, with respect to the overall appearance difference of the cigarette 10, the average evaluation score of the second lot was 4.37 points, and it was evaluated that there was no difference in appearance from the cigarette of the first lot. can. The average evaluation score of the third lot is 3.74 points, and it can be evaluated that there is little difference in appearance from the cigarette of the first lot. On the other hand, the average evaluation score of the 4th lot is 2.84 points, and it can be evaluated that the appearance is different from that of the cigarette of the 1st lot.

Regarding the standard deviation of the 2nd to 4th lots of the overall appearance difference of the cigarette 10, the standard deviation of the 2nd lot is the smallest. Therefore, it can be said that the average of the evaluation points of the overall appearance difference of the cigarette 10 of the second lot is smaller than that of the third lot and the fourth lot. However, it can be said that the standard deviations of the third lot and the fourth lot are also sufficiently small. Therefore, it can be said that the average of the evaluation points of the overall appearance difference of the cigarettes 10 of the second lot to the fourth lot has little variation in evaluation and is highly reliable.

As shown in FIGS. 8 and 10, regarding the difference in appearance of the mouthpiece side end face 46, the mouthpiece side end face 46 (see FIG. 4A) of the cigarette 10 of the second lot has an average evaluation score of 3.53 points, which is the second. It can be evaluated that there is little difference in appearance from the mouthpiece end face (see FIG. 4D) of one lot of cigarettes. The mouthpiece side end face 46 of the cigarette 10 of the third lot (see FIG. 4B) has an average evaluation score of 2.37 points, and it can be evaluated that there is a difference in appearance from the mouthpiece end face of the cigarette of the first lot. The mouthpiece side end face 46 of the cigarette 10 of the 4th lot (see FIG. 4C) has an average evaluation score of 1.26 points, and it is evaluated that there is a considerable difference in appearance from the mouthpiece end face of the cigarette of the 1st lot. can.

Regarding the standard deviation of the second lot to the fourth lot of the appearance difference of the mouthpiece side end face 46 of the cigarette 10, the standard deviation of the fourth lot is the smallest. Therefore, it can be said that the average of the evaluation points of the appearance difference of the mouthpiece side end surface 46 of the cigarette 10 of the fourth lot is smaller than that of the second lot and the third lot. However, it can be said that the standard deviations of the second lot and the third lot are also sufficiently small. Therefore, it can be said that the average of the evaluation points of the appearance difference of the mouthpiece side end face 46 of the cigarettes 10 of the second lot to the fourth lot is generally small in variation in evaluation and highly reliable.

The likes and dislikes shown in FIGS. 8 and 11 are comparisons with the cigarettes of the first lot. Evaluation of likes and dislikes
1 point: I hate it 2 points: I hate it a little 3 points: I don't like it 4 points I like it a little 5 points I like it a lot. That is, it can be determined that the user evaluates the appearance with the first lot as the average value (AVERAGE) of the evaluation points approaches 5 points. Further, it can be judged that the smaller the standard deviation (STDEV) value is, the smaller the variance of the evaluation of 19 persons is.

As shown in FIGS. 8 and 11, the average evaluation score of the cigarette 10 in the second lot is 3.16 points, and the appearance is different from that of the cigarette in the first lot. It can be evaluated that it is judged that there is no such thing. It can be evaluated that the cigarette 10 of the third lot has an average evaluation score of 2.68 points, and the cigarette 10 of the third lot is beginning to show a difference in appearance from the cigarette of the first lot. That is, it can be evaluated that the appearance of the cigarette 10 in the third lot was not evaluated as compared with the cigarette 10 in the second lot. The average evaluation score of the 4th lot is 2.37 points, and it can be evaluated that the cigarette 10 of the 4th lot is beginning to show a difference in appearance from the cigarette of the 1st lot. Further, it can be evaluated that the appearance of the cigarette 10 of the fourth lot was not evaluated with respect to the cigarette 10 of the second lot and the third lot.

Regarding the standard deviation of the 2nd to 4th lots of the overall favorability of the cigarette 10, the standard deviation of the 3rd lot is the smallest. Therefore, it can be said that the average evaluation score of the cigarette 10 of the third lot has a small variation in evaluation with respect to the second lot and the fourth lot. However, it can be said that the standard deviations of the second lot and the fourth lot are also sufficiently small. Therefore, it can be said that the average of the evaluation points of the likes and dislikes of the cigarettes 10 of the second lot to the fourth lot is generally small in variation in evaluation and highly reliable.

As shown in FIGS. 12 and 13, the cigarette 10 was actually smoked in the first lot, the second lot, and the fourth lot in which the tar amount was set to 6 mg, and the taste was evaluated. Here, the taste was evaluated from the four viewpoints of sweetness, smoke volume, irritation, and tobacco sensation (sucking response). The evaluation criteria was the taste (sweetness, smoke volume, irritation, tobacco sensation) of the first lot (Winston compact 6 mg), and this was given as 3 points. The number of evaluators is 16 which partially overlaps with the above-mentioned sensory evaluation. It can be evaluated that the closer the average value (AVERAGE) of the evaluation points (AVERAGE) of sweetness, smoke volume, irritation, and tobacco feeling is to 3 points, the smaller the difference from the first lot is. It can be judged that the smaller the standard deviation (STDEV) value is, the smaller the variance of the evaluation of 16 people is.

Regarding sweetness, it was evaluated that both the second lot and the fourth lot decreased with respect to the first lot. The sweetness of the second lot is closer to that of the first lot than that of the fourth lot.

Regarding the feeling of smoke volume, it was evaluated that both the 2nd lot and the 4th lot were lower than the 1st lot. The feeling of smoke volume is closer to the first lot in the fourth lot than in the second lot.

Regarding the stimulation, it was evaluated that both the 2nd lot and the 4th lot improved (increased) with respect to the 1st lot. The irritation is comparable in the second and fourth lots.

Regarding the feeling of tobacco, both the 2nd lot and the 4th lot were evaluated to be almost the same as the 1st lot.

As shown in FIG. 12, the standard deviation of the evaluation for each lot is sufficiently small. Therefore, it can be said that the average reliability of each evaluation score of the second lot and the fourth lot is high.

As shown in FIGS. 14 and 15, for the fifth lot, the sixth lot, and the seventh lot in which the tar amount was set to 1 mg, the cigarette 10 was actually smoked, and the sweetness, smoke volume, irritation, and tobacco sensation were obtained. (Smoke response) was evaluated. The evaluation criteria was the taste (sweetness, smoke volume, irritation, tobacco sensation) of the 5th lot (Winston compact 1 mg), and this was given as 3 points. The number of evaluators is 16 which partially overlaps with the above-mentioned sensory evaluation. It can be evaluated that the closer the average value (AVERAGE) of the evaluation points (AVERAGE) of sweetness, smoke volume, irritation, and tobacco feeling is to 3 points, the smaller the difference from the 5th lot is. It can be judged that the smaller the standard deviation (STDEV) value is, the smaller the variance of the evaluation of 16 people is.

It was evaluated that the sweetness of both the 6th lot and the 7th lot was slightly lower than that of the 5th lot. The sweetness of the 7th lot is closer to the 5th lot than the 6th lot.

Regarding the feeling of smoke volume, it was evaluated that both the 6th lot and the 7th lot were lower than the 5th lot.

Regarding the stimulation, it was evaluated that the 6th lot was improved (increased) with respect to the 5th lot, and the 7th lot was evaluated to be about the same as the 5th lot.

Regarding the tobacco feeling, it was evaluated that both the 6th lot and the 7th lot were slightly lower than the 5th lot.

As shown in FIG. 14, the standard deviation of the evaluation for each lot is sufficiently small. Therefore, it can be said that the average reliability of each evaluation score of the 6th lot and the 7th lot is high.

As shown in FIGS. 13 and 15, it can be evaluated that the use of the paper filter 14 for the cigarette 10 generally reduces the sweetness and the feeling of smoke, and tends to increase the irritation. In addition, the feeling of tobacco (sucking response) tends to decrease slightly, but the amount of decrease is small. The tobacco feeling is substantially the same as that of the first lot in the second lot and the fourth lot in which the tar amount is set to 6 mg, which is neither too high nor too low. Therefore, it can be said that the suction responses of the cigarettes 10 of the first lot, the second lot, and the fourth lot are almost the same. On the other hand, in the cigarette 10 set to 1 mg, which is a low tar amount, the tobacco sensation is lower in the 6th lot and the 7th lot than in the 5th lot. Cigarettes are generally considered to have a higher tobacco sensation (sucking response) as the amount of tar and nicotine increases. Therefore, in the 5th lot, the 6th lot, and the 7th lot in which the tar amount is set to 1 mg of low tar with respect to 6 mg, the tendency that it is difficult to obtain a tobacco sensation can be easily predicted.

As explained above, according to the present embodiment, the following can be said.

It is possible to provide a cigarette 10 including a filter 14 formed of a paper sheet. Considering the filters 14 having the same outer diameter, the filter 14 made of a paper sheet is made of paper, but the first end face (mouthpiece side end face) 46 is formed with the same amount of voids as the acetate filter. Therefore, it can be made to have the same aesthetic appearance as an acetate filter. Further, even if the amount of voids in the first end face (end face on the mouthpiece side) 46 is slightly larger than the amount of voids in the end face on the mouthpiece side of the acetate filter, the filter 14 formed of a paper sheet has the same aesthetic appearance as the acetate filter. It can have sex. Therefore, although the filter 14 according to the present embodiment is made of paper, it can enhance the aesthetic appearance.

Further, the filter 14 formed of a paper sheet is obtained by appropriately adjusting the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. of the first filter body 42 and the second filter body 52. , The amount of tar, etc. can be controlled, and the taste (sweetness, smoke amount, irritation, tobacco feeling) can be controlled. Therefore, a filter 14 having appropriate filtration characteristics for the fluid flowing from the tobacco rod 12 to the mouthpiece side end surface 46 during smoking is provided. That is, a cigarette 10 is provided that includes a filter 14 having an appropriate filtration specification.

In the first embodiment, an example in which the first filter main body 42 and the second filter main body 52 are formed mainly by crimping a paper sheet, for example, has been described. The types of processing for the sheet forming the filter body, such as forming the first filter body 42 by a crimping process and forming the second filter body 52 by a corrugating process, can be appropriately combined. This also applies to the second embodiment and the third embodiment described later.

In the present embodiment, an example in which paper is used as the first filter main body 42 and the second filter main body 52 has been described, but the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. are appropriately adjusted. Therefore, it is also possible to use a non-woven fabric.

When a non-woven fabric is used as the first filter main body 42 and the second filter main body 52, the crimp tool 102 as shown in FIGS. 2A and 2B is not used. When a non-woven fabric is used, instead of the crimp tool 100, a sheet folding machine 150 (see FIG. 16A) for stacking and folding a plurality of

sheets

152a, 152b, 152c, 152d is used. As shown in FIGS. 16A and 16B, the sheet folding machine 150 uses, for example, a plurality of

guides

162, 164, 166 in a state where a plurality of

sheets

152a, 152b, 152c, 152d of the non-woven fabric are stacked with their ends shifted. The folding process is performed while bending into a substantially S-shape or a substantially Z-shape. The

guides

162, 164, and 166 are separated from each other along the moving direction of the

sheets

152a, 152b, 152c, and 152d. The

guides

162, 164, and 166 are, for example, disc-shaped, respectively, but opening

grooves

162a, 164a, and 166a for advancing the folding process for the plurality of

sheets

152a, 152b, 152c, and 152d are formed. A plurality of

sheets

152a, 152b, 152c, 152d stacked with their ends shifted are passed through the

guides

162, 164, and 166, and then guided into the pipe 156 in front of the guide 166 by the endless belt 158. By sequentially passing through the opening

grooves

162a, 164a, 166a of the

guides

162, 164, 166, the plurality of

sheets

152a, 152b, 152c, 152d gradually approach the substantially S-shape or the substantially Z-shape, and in the pipe 156. Folded. After the first filter main body 42 is folded, the shape of the first filter main body 42 is maintained by the first winding paper 44. When the second filter main body 52 is folded, the shape of the second filter main body 52 is maintained by the second winding paper 54. Therefore, the first filter main body 42 and the second filter main body 52 are once formed into a rod shape of, for example, approximately 120 mm, and then cut to an appropriate length.

The amount of voids when the first end surface 46 of the first filter main body 42 of the non-woven fabric is viewed is smaller than the amount of voids when the third end surface 56 of the second filter main body 52 made of non-woven fabric or paper is viewed. The area of the void when the first end surface 46 of the first filter main body 42 of the non-woven fabric is viewed is, for example, 3 mm ^{2 similar to the area of the void when the first end surface 46 of the first filter main body 42 made of paper is viewed.} The following is preferable. It is preferable that the amount of voids when the first end surface 46 of the first filter main body 42 of the non-woven fabric is viewed is larger than the amount of voids of the acetate filter on the mouthpiece side. It is preferable that the ventilation resistance of the first filter main body 42 of the non-woven fabric is higher than the ventilation resistance of the second filter main body 52 made of non-woven fabric or paper. When the first filter main body 42 of the filter 14 is made of non-woven fabric, the aesthetic appearance can be enhanced as in the case of being made of paper. Further, even if the first filter main body 42 and the second filter main body 52 are made of non-woven fabric, the filter performance (filtration characteristics) substantially the same as those of the first filter main body 42 and the second filter main body 52 made of paper can be exhibited. ..

That is, according to the present embodiment, the filter 14 and the cigarette (smoking article) 10 including the filter 14 which are formed of a paper sheet or a non-woven fabric sheet, enhance the aesthetic appearance, and have appropriate filtration characteristics. Is provided.

The cigarette 10 including the filter 14 according to the present embodiment can be formed of all or most of the natural components such as paper material and tobacco material. Therefore, as compared with the case of using, for example, an acetate filter (first lot, fifth lot), it is possible to reduce the environmental load on nature.

[Second Embodiment]
The second embodiment will be described with reference to FIG. This embodiment is a modification of the first embodiment.

The flavor suction article 210 is one of the members constituting the non-combustion heating type flavor suction article.

The flavor suction article 210 shown in FIG. 17 is a replaceable cartridge used together with a heater. The flavor suction article 210 has a columnar shape extending in one direction.

As shown in FIG. 17, the flavor suction article 210 includes a base material portion 212 forming one end thereof, a filter 214 forming an end portion opposite to the base material portion 212, and a base material portion 212. It has a paper tube portion 216 between the filter 214 and the filter 214. The base material portion 212, the paper tube portion 216, and the filter 214 are connected by a wrapping paper 218. The paper tube portion 216 is a paper tube formed by winding paper in a cylindrical shape, and the inside is hollow.

The base material portion 212 includes a filling material 222 and a first rolling paper 224 for winding the filling material 222.

The filler 222 contains, for example, a tobacco material and an aerosol source.

The aerosol source is heated at a predetermined temperature to generate an aerosol together with a substance such as a flavor substance derived from the flavor source of the filler 222. Aerosol sources include, for example, glycerin, propylene glycol, triacetin, 1,3-butanediol, and mixtures thereof. The content of the aerosol source in the filler 222 is not particularly limited, and is usually 5% by mass or more, preferably 10% by mass or more, from the viewpoint of generating a sufficient amount of aerosol and imparting a good flavor. Yes, and is usually 50% by mass or less, preferably 25% by mass or less.

Filling 222 contains a tobacco material as a flavor source. The tobacco material is, for example, tobacco chopped. The content of the filler 222 in the flavor suction article 210 is, for example, 200 to 400 mg and preferably 250 to 320 mg when the base material portion 212 has a peripheral length of 22 mm and a length of 20 mm. The water content of the filler 222 is, for example, 8 to 18% by mass, preferably 10 to 16% by mass. With such a water content, it is possible to suppress the occurrence of winding stains and improve the hoisting suitability of the base material portion 212 during production.

The filter 214 has a first filter plug 232, a second filter plug 234, and a molded paper 236 that is connected by covering them. Let L1 be the length along the longitudinal axis L of the first filter plug 232, and let L2 be the length along the longitudinal axis L of the second filter plug 234. The second filter plug 234 is arranged between the paper tube portion 216 and the first filter plug 232.

The first filter plug 232 has a first filter main body (filter element, filter medium) 242 and a first plug winding paper (cylindrical portion) 244 for winding the first filter main body 242. The length L1 of the first filter plug 232 is the same as the length of the first filter main body 242. The first filter main body 242 has a first end face (mouthpiece side end face) 246 on the mouthpiece side and a second end face (base material portion 212 side end face) 248 on the opposite side to the mouthpiece side. The first end face 246 and the second end face 248 have, for example, a substantially circular shape. The first filter body 242 is defined with a longitudinal axis (central axis) L that intersects the first end surface 246 and the second end surface 248. The first end surface 246 is on the mouthpiece side, and the second end surface 248 is on the base material portion 212 side. The first end surface 246 is exposed to the outside.

The second filter plug 234 has a second filter main body (filter element, filter medium) 252 and a second winding paper (cylindrical portion) 254 that winds the outer circumference of the second filter main body 252. The length L2 of the second filter plug 234 is the same as the length of the second filter main body 252. The second filter body 252 has a third end face 256 and a fourth end face 258. The outer shape of the third end surface 256 and the fourth end surface 258 is, for example, a substantially circular shape. The second filter body 252 is defined with a longitudinal axis (central axis) L that intersects the third end surface 256 and the fourth end surface 258. The third end surface 256 is on the mouthpiece side, and the fourth end surface 258 is on the base material portion 212 side. The third end face 256 faces or contacts the second end face 248.

The molding paper 236 is wound around the outer periphery of the first roll paper 244 and the second roll paper 254, and connects the first roll paper 244 and the second roll paper 254.

The wrapping paper 218 winds the outer periphery of the base material portion 212, the paper tube portion 216, and the filter 214 so as to connect the base material portion 212 and the filter 214 via the paper tube portion 216.

The first filter main body 242 and the second filter main body 252 are formed of a paper sheet or a non-woven fabric sheet. The relationship between the first filter main body 242 and the second filter main body 252 is the same as the relationship between the first filter main body 42 and the second filter main body 52 described in the first embodiment.

Therefore, it is preferable that the sheet of the first filter main body 242 is crimped larger than the sheet of the second filter main body 252. It is preferable that the ventilation resistance of the first filter main body 242 is higher than the ventilation resistance of the second filter main body 252. The ventilation resistance of the first filter main body 242 may be lower than the ventilation resistance of the second filter main body 252. The ventilation resistance of the first filter body 242 is, for example, 0 mmH ₂ O / mm to 12 mmH ₂ O / mm, and the ventilation resistance of the second filter body 252 is, for example, 0 mmH ₂ O / mm to 12 mmH ₂ O / mm. Is preferable.

The air permeability of the sheet of the first filter body 242 is 1000 CU (cholester unit) to 30,000 CU after the crimp treatment, and the air permeability of the sheet of the second filter body 252 is 0 CU to 10000 CU after the crimp treatment. Is preferable.

The amount of voids when the mouthpiece side end surface 246 of the first filter main body 242 is viewed is the same as or larger than the amount of voids of the acetate filter at the mouthpiece. The area of the gap when the mouthpiece side end surface 246 of the first filter main body 242 is viewed ^{is preferably 3 mm 2} or less.

As described above, the filter 214 has the same aesthetic appearance as the filter 14 described in the first embodiment, and serves as a flavor source of the filler 222 from the filler 222 of the base material portion 212 toward the mouthpiece side end surface 246. It is formed in a state having appropriate filtration characteristics with respect to an aerosol containing a substance such as a flavoring substance derived from it.

It is possible to provide a flavor suction article 210 including a filter 14 formed of a paper sheet. At this time, the filter 214 made of a paper sheet can have the same aesthetic appearance as the acetate filter by forming the filter 214 in the same degree of voids as the acetate filter even though it is made of paper. Therefore, although the filter 214 according to the present embodiment is made of paper, it can enhance the aesthetic appearance.

Further, the filter 214 formed of a paper sheet is obtained by appropriately adjusting the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. of the first filter main body 242 and the second filter main body 252. , The taste (sweetness, smoke volume, irritation, tobacco feeling) can be controlled. Therefore, a filter 214 having appropriate filtration characteristics is provided. That is, there is provided a flavor suction article 210 that includes a filter 214 with appropriate filtration specifications.

In the present embodiment, an example in which paper is used as the first filter main body 242 and the second filter main body 252 has been described, but the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. are appropriately adjusted. Therefore, it is also possible to use the

non-woven fabric sheets

152a, 152b, 152c, 152d (see FIG. 16A) described in the first embodiment. That is, according to the present embodiment, the filter 214 and the flavor suction article 210 including the filter 214, which are formed of a paper sheet or a non-woven fabric sheet, enhance the aesthetic appearance, and have appropriate filtration characteristics, are provided. Will be done.

Although not shown, in order to appropriately adjust the ventilation resistance of the flavor suction article 210, the filter 214 may be provided with an opening portion to take in air from the outside. In this case, it is desirable to provide an opening in the paper tube portion 216.

The length of the flavor suction article 210 in the longitudinal direction is preferably 40 to 90 mm, more preferably 50 to 75 mm, and even more preferably 50 to 60 mm. The perimeter of the flavor suction article 210 is preferably 15 to 25 mm, more preferably 17 to 24 mm, and even more preferably 20 to 23 mm. Further, in the flavor suction article 210, the length of the base material portion 212 is 20 mm, the length of the paper tube portion 216 is 20 mm, the length of the first filter plug 232 is 7 mm, and the length of the second filter plug 234 is 8 mm. However, the length of each of these individual segments can be appropriately changed according to manufacturing suitability, required quality, and the like.

There are no particular restrictions on the size of the tobacco chopped used in the filling 222 and the method for preparing the chopped tobacco. For example, dried tobacco leaves may be chopped to a width of 0.8 to 1.2 mm. Further, dried tobacco leaves may be crushed to have an average particle size of about 20 to 200 μm, homogenized, processed into a sheet, and chopped into a width of 0.8 to 1.2 mm. .. Further, the above-mentioned sheet-processed material that has been gathered without being carved may be used as the tobacco material.

As the first roll paper 244 and the second roll paper 254, the

same roll papers

44 and 54 and the chip paper 16 used in the cigarette 10 described in the first embodiment can be used, respectively.

The flavor suction article 210 including the filter 214 according to the present embodiment can be formed of all or most of the naturally derived components such as paper material and tobacco material. Therefore, the environmental load on nature can be reduced as compared with the case where, for example, an acetate filter is used as the filter.

[Third Embodiment]
The third embodiment will be described with reference to FIG.

The flavor suction article 310 is one of the members constituting the non-combustion heating type flavor suction article.

The flavor suction article (capsule) 310 shown in FIG. 18 is a replaceable cartridge used together with a heater. The flavor suction article 310 has a columnar shape extending in one direction.

As shown in FIG. 18, the flavor suction article 310 includes a capsule body (cylindrical portion) 311 and a tobacco material 312 enclosed in the capsule body 311, a filter 314 for preventing the tobacco material 312 from leaking, and a capsule. It has a ring-shaped cap (end piece) 316 that supports the filter 314 with respect to the main body 311.

The capsule body 311 has an opening 322 at one end (mouthpiece side) and a net unit 324 at the other end (tobacco material 312 side). The capsule body 311 has a step 326 on which the filter 314 is placed. The net unit 324 of the capsule body 311 allows, for example, air and appropriate steam to pass through, but the size of the mesh is adjusted so as to prevent the tobacco material 312 from leaking out.

Appropriate materials such as paper or non-woven fabric are used for the capsule body 311 and the cap 316. The capsule body 311 and the cap 316 may be made of a resin material. When the capsule body 311 and the cap 316 are made of a resin material, it is preferable that all or part of the material is recyclable.

As the tobacco material 312, in addition to tobacco chopping, granular materials are used.

The filter 314 is capable of passing air and appropriate steam, and is formed in a substantially columnar shape. The filter 314 has a first filter main body 342 and a second filter main body 352. Let L1 be the length along the longitudinal axis L of the first filter main body 342, and let L2 be the length along the longitudinal axis L of the second filter main body 352. The first filter main body 342 and the second filter main body 352 are held by the capsule main body (cylindrical portion) 311. When the cap (end piece) 316 is arranged with respect to the capsule body 311 the cap 316 supports the first filter body 342 and the second filter body 352, and the first filter body 342 and the second filter body 352 capsule. Prevents it from coming off the main body 311.

Like the first filter main body 42 described in the first embodiment and the first filter main body 242 described in the second embodiment, the first filter main body 342 is formed of an appropriate paper material or non-woven fabric, and has a material and a basis weight. , Air permeability, crimp depth, void amount, ventilation resistance, etc. are adjusted appropriately. The second filter main body 352 is formed of an appropriate paper material or non-woven fabric, like the second filter main body 52 described in the first embodiment and the first filter main body 252 described in the second embodiment, and has a material and a basis weight. , Air permeability, crimp depth, void amount, ventilation resistance, etc. are adjusted appropriately.

The first filter main body 342 has a first end surface (mouthpiece side end face) 346 on the mouthpiece side and a second end face (tobacco material 312 side end face) 348 opposite to the mouthpiece side. The second filter body 352 has a first end surface 356 and a second end surface 358. The second end surface 348 and the first end surface 356 face each other or come into contact with each other. The first end surface 346 is exposed to the outside.

The sheet of the first filter main body 342 is crimped larger than the sheet of the second filter main body 352. It is preferable that the ventilation resistance of the first filter main body 342 is higher than the ventilation resistance of the second filter main body 352. The ventilation resistance of the first filter main body 342 may be lower than the ventilation resistance of the second filter main body 352. The ventilation resistance of the first filter main body 342 _{is preferably 0 mmH 2} O / mm to 12 mmH ₂ O / mm, for example. The ventilation resistance of the second filter main body 352 _{is preferably 0 mmH 2} O / mm to 12 mmH ₂ O / mm, for example.

The air permeability of the sheet of the first filter main body 342 is preferably, for example, 1000 CU (cholesta unit) to 30,000 CU after the crimping treatment. The air permeability of the sheet of the second filter main body 352 is preferably 0 CU to 10000 CU, for example, after the crimp treatment.

The amount of voids when the first end surface 346 of the first filter main body 342 is viewed is the same as or larger than the amount of voids of the acetate filter at the mouthpiece. The area of the void when the first end surface 346 of the first filter main body 342 is viewed ^{is preferably 3 mm 2} or less.

As described above, the filter 314 has the same aesthetic appearance as the filter 14 described in the first embodiment and the filter 214 described in the second embodiment, and has a flavor source from the tobacco material 312 toward the mouthpiece side end surface 46. It is formed in a state having appropriate filtration characteristics with respect to substances such as flavor substances derived from tobacco and aerosols.

It is possible to provide a flavor suction article 310 containing a filter 314 formed of a paper sheet. At this time, although the filter 314 made of a paper sheet is made of paper, it can have the same aesthetic appearance as the acetate filter by forming the filter 314 in the same degree of voids as the acetate filter. Therefore, although the filter 314 according to the present embodiment is made of paper, it can enhance the aesthetic appearance.

Further, the filter 314 formed of a paper sheet is obtained by appropriately adjusting the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. of the first filter main body 342 and the second filter main body 352. , The taste (sweetness, smoke volume, irritation, tobacco feeling) can be controlled. Therefore, a filter 314 having appropriate filtration characteristics is provided. That is, there is provided a flavor suction article 310 that includes a filter 314 with the appropriate filtration specifics.

In the present embodiment, an example in which paper is used as the first filter main body 342 and the second filter main body 352 has been described, but the material, basis weight, air permeability, crimp depth, void amount, ventilation resistance, etc. of the sheet are appropriately adjusted. By adjusting, it is also possible to use the

non-woven fabric sheets

152a, 152b, 152c, 152d (see FIG. 16A) described in the first embodiment. That is, according to the present embodiment, there is provided a flavor suction article 310 including a filter 314 and a filter 314, which are formed of a paper sheet or a non-woven fabric sheet, enhance aesthetics, and have appropriate filtration characteristics. Will be done.

The invention of the present application is not limited to the above-described embodiment, and can be variously modified at the implementation stage without departing from the gist thereof. In addition, each embodiment may be carried out in combination as appropriate as possible, in which case the combined effect can be obtained. Further, the above-described embodiment includes inventions at various stages, and various inventions can be extracted by an appropriate combination in a plurality of disclosed constitutional requirements.

Claims

A first filter body having a first end surface on the mouthpiece side and a second end surface on the side opposite to the mouthpiece side,
A second filter body, which is on the side of the second end surface of the first filter body and has a third end surface facing the second end surface.
Have,
The first filter main body and the second filter main body are formed of a paper sheet or a non-woven fabric sheet, and are formed of a paper sheet or a non-woven fabric sheet.
A filter in which the amount of voids when the first end surface of the first filter body is viewed is smaller than the amount of voids when the third end surface of the second filter body is viewed.
The filter according to claim 1, wherein the first end face is exposed to the outside.
The filter according to claim 1 or 2, wherein the ventilation resistance of the first filter body is higher than the ventilation resistance of the second filter body.
The ventilation resistance of the first filter body is 0 mmH 2 O / mm to 12 mmH 2 O / mm.
The filter according to claim 1 or 2, wherein the ventilation resistance of the second filter body is 0 mmH 2 O / mm to 12 mmH 2 O / mm.
The filter according to any one of claims 1 to 4, wherein the paper sheet is crimped.
The air permeability of the paper sheet of the first filter body is 1000 CU (cholesta unit) to 30,000 CU after the crimping treatment of the paper sheet.
The filter according to claim 5, wherein the air permeability of the paper sheet of the second filter body is 0 CU to 10000 CU after the crimping treatment of the paper sheet.
The filter according to any one of claims 1 to 4, wherein a plurality of the non-woven fabric sheets are stacked and folded.
The filter according to any one of claims 1 to 7, wherein the amount of voids when the first end surface of the first filter body is viewed is larger than the amount of voids of the acetate filter on the mouthpiece side.
The filter according to any one of claims 1 to 8, wherein the area of the gap when the first end surface of the first filter body is viewed is 3 mm 2 or less.
The first winding paper that wraps the outer circumference of the first filter body and
The second winding paper that wraps around the outer circumference of the second filter body and
The filter according to any one of claims 1 to 9, further comprising a first roll paper and a molded paper wound around the outer periphery of the second roll paper and connecting the first roll paper and the second roll paper.
A capsule body that holds the first filter body and the second filter body,
The filter according to any one of claims 1 to 9, which is arranged in the capsule body and has a cap that supports the first filter body and the second filter body.
A smoking article having the filter according to any one of claims 1 to 10.
A flavor-sucking article having the filter according to any one of claims 1 to 11.