TWI592100B - Smoking article and filter - Google Patents

Description

Smoking items and filters

The present invention relates to a smoking article comprising a filter body surrounded by a sheet, and a filter for use in the smoking article.

The filter for cigarettes is usually produced by surrounding a filter material such as cellulose acetate tow with a roll paper. In order to remove the gas or vapor component of the mainstream smoke, the sorbent particles such as activated carbon are placed, or the flavor enhancer particles are added to make up the flavor of the cigarette, which is generally known. As a method of adding the above-mentioned particles, it is known that it can be roughly classified into two types: a Dalmatian type in which particles are dispersed in a filter material such as cellulose acetate tow, and a cavity in a cavity between filter media filters. The cavity type of the particle is added to the part.

An example of adding an additive to a cavity filter is dominant. In Japanese Laid-Open Patent Publication No. 2005-525795, a spherical activated carbon sorbent is added to a cavity portion as a measure for increasing the filling rate of activated carbon and mechanical contamination. As an example of adding a flavor reinforcing agent, there are the following. In Japanese Laid-Open Patent Publication No. 2010-521962, a flavor-containing cellulose particle is added to a cavity portion, and in Japanese Patent Laid-Open Publication No. 2007-520204, a capsule that may be broken is added to a cavity portion.

U.S. Patent No. 6,537,186 discloses a cavity The method of manufacturing the filter. Japanese Laid-Open Patent Publication No. 2008-48734 discloses a bonding method at the time of producing a continuous body of articles in the cigarette processing industry. In the specification of Japanese Patent No. 4955866, a method of applying a tape-like adhesive to coated paper is disclosed.

[Previous Technical Literature] (Patent Literature)

Patent Document 1: Japanese Patent Publication No. 2005-525795

Patent Document 2: Japanese Patent Publication No. 2010-521962

Patent Document 3: Japanese Patent Publication No. 2007-520204

Patent Document 4: US Patent No. 6537186

Patent Document 5: Japanese Laid-Open Patent Publication No. 2008-48734

Patent Document 6: Japanese Patent No. 4955866

It is preferable not only to be able to properly follow the manufacture, but also to maintain a sufficient adhesive strength after a predetermined period of time.

A smoking article according to one aspect of the present invention includes: a cylindrical filter body having a cylindrical shape formed by laminating one end portion on the opposite side of the one end portion and enclosing the filter body body a sheet on the inner side, a first hot melt adhesive agent and a first water-based adhesive provided at a position between the filter body and the sheet, and between the one end portion and the other end portion Position of the second hot melt adhesive system The second agent and the second aqueous binder.

According to the present invention, it is possible to provide a smoking article which maintains a sufficient adhesive strength at the time of manufacture and after a predetermined period of time after manufacture.

11‧‧‧ Cigarettes

12‧‧ ‧Tobacco Department

13‧‧‧Filter section

13A‧‧‧ mouthpiece

14‧‧‧ outer paper

15‧‧‧ cut tobacco

16‧‧‧Roll paper

21‧‧‧1st filter body

22‧‧‧2nd filter body

23‧‧‧ Forming paper

24‧‧‧ cavity

25‧‧‧ granules

26‧‧‧End of one side

27‧‧‧End of the other side

31‧‧‧1st hot melt adhesive adhesive

32‧‧‧2nd hot melt adhesive adhesive

33‧‧‧1st water binder

34‧‧‧Second water system adhesive

35‧‧‧Roll paper

36‧‧‧ openings

37‧‧‧ Filling materials

41‧‧‧ Filter section

Fig. 1 is a cross-sectional view taken along the longitudinal direction of the cigarette of the first embodiment.

Fig. 2 is a cross-sectional view taken along line F2-F2 of the cigarette shown in Fig. 1.

Fig. 3 is a table showing the conditions of the cigarettes of the examples and the comparative examples.

Fig. 4 is a cross-sectional view showing a direction intersecting the longitudinal direction of the cigarette of the comparative example shown in Fig. 3.

Fig. 5 is a cross-sectional view showing a direction intersecting with the longitudinal direction of the cigarette of the second embodiment.

Fig. 6 is a cross-sectional view showing a direction intersecting the longitudinal direction of the cigarette of the third embodiment.

[First Embodiment]

Hereinafter, a first embodiment of a cigarette relating to an example of a smoking article will be described with reference to Figs. 1 and 2 . Further, the smoking article includes a cigarette, a smoking device that attracts the flavor of the cigarette by heating with an electronic device or a carbon heat source, and a smoking device that attracts the flavor of the cigarette by a non-heating type.

As shown in Fig. 1, the cigarette 11 includes a cylindrical tobacco portion 12, a cylindrical filter portion 13 provided adjacent to the tobacco portion 12, and a cover. The cylindrical outer layer paper 14 of the tobacco portion 12 and the filter portion 13 is covered. The end of the filter portion 13 constitutes a suction port 13A which is located in the mouth of the smoker while the smoker is holding the cigarette.

The tobacco portion 12 is formed by wrapping the paper 16 around the tobacco 15 (tobacco).

The filter unit 13 (filter) includes a first filter body 21 (filter body) positioned on the side of the suction port 13A, and is disposed apart from the first filter body 21 in the direction of the center axis C, and is located on the tobacco portion 12 side. The second filter body 22 and the cylindrical forming paper 23 (sheet) covering the first filter body 21 and the second filter body 22 are disposed between the first filter body 21 and the second filter body 22 The cavity 24, the particles 25 housed in the cavity 24, the outer layer paper 14, and a plurality of opening portions (venting holes) 36 for taking in outside air.

The formed paper 23 (sheet) is formed into a rectangular shape without being adhered to the adhesive. As shown in Fig. 2, the formed paper 23 has one end portion 26 and the other end portion 27 on the opposite side. The formed paper 23 is formed by laminating the other end portion 27 of one end portion 26 and then forming a cylindrical shape, and surrounds the first filter body 21 and the second filter body 22 on the inner side thereof. When the forming paper 23 has a cylindrical shape, one end portion 26 is disposed inside the other end portion 27. Hereinafter, a position at which one end portion 26 overlaps the other end portion 27 will be referred to as an overlapping portion 29.

The forming paper 23 is formed into a transparent paper and a transparent film. More specifically, the forming paper 23 is a paper having a high transparency such as glassine paper, paraffin paper, or a cellophane film made of wood pulp as a raw material, or Polypropylene (PP), poly Any of plastic transparent films such as ethylene (PE), polymethyl methacrylate (PMMA), polystyrene (PS), and polyethylene terephthalate (PET). Further, the formed paper 23 may be formed of opaque plain paper. The formed paper 23 may be ventilated or non-ventilated.

Fig. 2 is a cross-sectional view showing the position along the line F2-F2 of Fig. 1 (the outer layer paper is omitted in Fig. 2). The filter unit 13 further includes a first hot melt adhesive agent provided at a position between the first filter body 21 and the forming paper 23 (and a position between the second filter body 22 and the forming paper 23). 31. The second hot-melt adhesive 32 provided at a position (overlap portion 29) between the one end portion 26 of the formed paper 23 and the other end portion 27 is provided in the first filter body 21 and the forming paper 23 The first water-based adhesive 33 between the position (and between the second filter body 22 and the forming paper 23) and the position between the one end portion 26 and the other end portion 27 (overlap portion) 29) The second aqueous binder 34.

In the present embodiment, as shown in Fig. 2, the first water-based adhesive 33 and the second aqueous adhesive 34 are continuous and integrated. In other words, the water-based adhesive is disposed between the first filter body 21 (the second filter body 22) and the forming paper 23 and between the one end portion 26 and the other end portion 27. Position (overlap 29).

As the particles 25 accommodated in the cavity 24, sorbent particles (activated carbon or the like) or a flavor-enhancing agent particle which absorbs and removes the smoke component of the cigarette can be used. It is also possible to mix and fill the sorbent particles and the flavor reinforcing agent particles in the cavity 24.

The first filter body 21 and the second filter body 22 are The periphery of the fibrous filler 37 is wrapped in a roll paper 35 to form a cylindrical shape. The first filter body 21 and the second filter body 22 can be formed by various types of filler materials 37. In the present embodiment, for example, the filler 37 of cellulose-based semisynthetic fibers such as cellulose acetate is used, but the filler 37 is not limited thereto. For the filling material 37, for example, plant fibers such as cotton, hemp, manila hemp, coconut, and valerian; animal fibers such as wool and kashya wool; cellulose-based regenerated fibers such as rayon; nylon and polyester; , synthetic fibers such as acrylic, polyethylene, polypropylene, etc.; or a combination of these. The constituent elements of the first filter body 21 and the second filter body 22 may contain granules of sorbent particles or flavor-reinforcing agent particles in addition to the filler composed of the cellulose acetate fibers described above. . Further, the first filter body 21 and the second filter body 22 may be configured such that two or more different segments are connected in the axial direction to form a plurality of segments. At this time, each of the sections is wound around the roll paper 35 and fixed to the inside of the first filter body 21 and the second filter body 22. In each of the sections, the respective filling materials 37 may be separately wrapped by the winding material of the section, or a nonlap filter as shown in Fig. 15 of Japanese Patent No. 4262247 may be used.

Further, in the first filter body 21 and the second filter body 22, at least one of a plasticizer and an adhesive may be added in order to create a desired hardness of the filter. There are no special requirements for the type of plasticizer to be used. As the plasticizer, for example, triethyl citrate, acetaminophen citrate, tributyl citrate, tributyl citrate, dibutyl tartarate, ethyl phthalate, ethyl glycolate, and adjacent Methyl phthalate ‧ glycolate B Ester, triacetin, triethyl phosphate, triphenyl phosphate, tripropylene, or a combination thereof. There are no special requirements for the type of adhesive used. For example, as the adhesive, HMC, HPMC, PVA, PVAc, PEG, or the like can be used. Plasticizers and adhesives may also be used depending on the situation.

Further, the first filter body 21 and the second filter body 22 may contain a fragrance such as mint. Although the flavoring method of the fragrance is not particularly required, for example, the belt-like substance that adsorbs the fragrance may be disposed in the first filter body 21 and the second filter body 22, or in the first filter body 21 and The filling material of the second filter body 22 contains a fragrance or a method of disposing a material obtained by fixing a fragrance such as a capsule in the first filter body 21 and the second filter body 22.

The type and material of the roll paper 35 used in the first filter body 21 and the second filter body 22 are not particularly limited. As the roll paper 35, a roll paper 35 used in a general cigarette filter may be used, or a permeable paper roll 35 may be used, or a non-ventilating one may be used. The web 35 used in a general product has a basis weight of 20 to 100 g/m ² , a thickness of 30 to 110 μm, and an air permeability of 0 to 32,000 cholest units. In the material of the roll paper 35, paper made of vegetable fibers is generally used, but a non-woven fabric of a chemical fiber (polypropylene, polyethylene, nylon, or the like) or a polymer system may be used. For the film of cellulose, cellulose acetate, polypropylene, polyethylene, nylon, polylactic acid, etc., a metal foil such as aluminum foil can also be used.

The material of the outer layer 14 is not particularly required. In the outer layer paper 14, generally, a paper made of vegetable fibers is used, but a non-woven fabric of a chemical fiber (polypropylene, polyethylene, nylon, etc.) or a polymer system (cellulose) may be used. For the film of cellulose acetate, polypropylene, polyethylene, nylon, polylactic acid, etc., a metal foil such as aluminum foil may also be used. The outer layer paper 14 may be transparent or opaque. In the general product, the outer paper 14 used is a paper having a basis weight of 35 to 56 g/m ² and a thickness of 35 to 45 μm, and has a smoothness on the surface for easy printing of a brand mark or the like, and the filter portion 13 It is also possible to mix the filler material 37 such as titanium disilicate or calcium carbonate to increase the opacity so that it cannot be seen through. In order to keep the cigarettes ventilated through the filter, the outer paper can also be opened beforehand, or it can be opened by the coiler when the cigarette is taken up.

The plurality of opening portions 36 are radially formed by centering the central axis C of the cigarette 11. The plurality of opening portions 36 are arranged in the direction around the cigarette 11, for example, in a row in a row. The plurality of opening portions 36 are, for example, 10 to 40 in total.

Next, the manufacturing procedure of the cigarette 11 of this embodiment will be described. First, a basic filter portion that becomes the first filter body 21 and the second filter body 22 is manufactured by a general filter manufacturing apparatus. After the basic filter portion is put into the synthesizer, it is cut into a length corresponding to two branches of the cigarette, and the cut basic filter body 21 and the filter body 22 are alternately arranged, and the arranged filters are borrowed. A cavity 24 of a desired length is provided by a roller or the like. The continuous body of the filter body 21 and the filter body 22 in which the cavity 24 is provided is intermittently fed into the forming paper 23. At this time, on the inner surface of the formed paper 23, the predetermined first hot-melt adhesive-based adhesive 31 is applied by the first nozzle. The process begins with the confluence of the continuum. The formed forming paper 23 is formed in a U-shape that is opened upward, and forms a continuous body that surrounds the filter body 21, the filter body 22, and the cavity 24. Then, the particles 25 are introduced from above the forming paper 23 which is released into a U shape.

The second nozzle that supplies the second hot melt adhesive-based adhesive 32 and the water-based adhesive (the first water-based adhesive 33 and the second water-based adhesive 34 that are integrated) are disposed on the production line that feeds the formed paper 23 . The wide third nozzle is coated with an adhesive on the inner surface of the formed paper 23. Thereafter, the U-shaped formed paper 23 is wound into a cylindrical shape, and at this time, the second hot melt adhesive-based adhesive 32 and the water-based adhesive (the first water-based adhesive 33 and the second aqueous adhesive 34) are started. Thereby, the first hot melt adhesive-based adhesive 31 and the first water-based adhesive 33 are disposed at a position between the first filter body 21 and the molding paper 23 . Similarly, the first hot melt adhesive-based adhesive 31 and the first water-based adhesive 33 are disposed at a position between the second filter body 22 and the molding paper 23 . Moreover, the second hot-melt adhesive 32 and the second water-based adhesive 34 are disposed at a position (overlap portion 29) between the one end portion 26 of the molded paper 23 and the other end portion 27. The continuum of the filter thus formed is cut to a final predetermined length to complete the filter portion corresponding to four cigarettes.

The tobacco portion 12 (roll) is produced using a conventionally prepared cigarette winding machine. Then, between the tobacco portions 12 of the two branches, the filter having the filter portion formed as described above is cut into half and the filter of the cigarette is inserted into two. Then, in the cigarette winding machine, the tobacco portion 12 and the filter portion 13 of the cigarette 11 corresponding to the two branches are wrapped together using the outer layer paper 14 to form the tobacco portion 12 and the filter portion 13 corresponding to the cigarette branch 2 Linked to a rod.

Then, the rod is operated at a predetermined speed while forming a venting opening portion 36 by using a CO ₂ laser or the like. Then, the filter portion 13 and the outer layer paper 14 are cut by a cutter at a central position of the filter portion 13 having a length of two minutes, thereby completing the manufacture of one cigarette 11. The opening portion 36 for ventilation is also formed by laser or the like after being cut into one cigarette. Further, the opening portion 36 for ventilation may be held by the air permeability of the outer layer paper 14, the forming paper 23, and the roll paper 35. In this case, no laser or the like is used. The opening method in such a case is determined by the specifications of a cigarette winding machine or a cigarette.

[Examples]

Fig. 3 shows representative conditions of the cigarette of the example. The cigarette 11 of the embodiment has the same configuration as that of the above-described embodiment shown in Figs. 1 and 2 . The filter portion 13 used in the cigarette 11 is manufactured as follows. As the filter portion including the first filter body 21 and the second filter body 22, a filter containing mint is used. As the roll paper 35, a general web (manufactured by Nippon Paper Papylia Co., Ltd.) having a degree of air permeability of 30,000 Crest units and a basis weight of 21 g/m ² was used. The length of the first filter body 21 and the second filter body 22 in the direction of the central axis C of the cigarette 11 is 10 mm. The cavity 24 between the first filter body 21 and the second filter body 22 has a length of 7 mm in the direction of the central axis C of the cigarette 11. The circumference of the filter portion 13 is 24.2 mm. The length of the filter portion is 108 mm, which corresponds to four branches of 27 mm in length of the filter portion 13 when the cigarette 11 is manufactured. The first filter body 21 and the second filter body 22 are formed of a transparent molded paper 23 (‧P-BD manufactured by Futamura Chemical Co., Ltd.) made of a cellophane film.

In the cavity 24, 20 mg of Dutch mint leaves are filled. Granule 25 (manufactured by Takasago Perfumery Industries Co., Ltd.). After the granules 25 of the mint leaves of the Netherlands are dried and pulverized, a sieve having a diameter of 0.5 to 1.4 mm is used for use.

Daikalac S-1101 S, which is manufactured by Daisei Co., Ltd., is used as the first hot melt adhesive-based adhesive 31 and the second hot melt adhesive-based adhesive 32. In addition, the product Sebian A 20753 manufactured by Daicel Fine Chem Co., Ltd. was used as the first water-based adhesive 33 and the second aqueous adhesive 34. The aqueous binder is an adhesive that hardens by evaporation of water in the adhesive. The second hot melt adhesive-based adhesive 32 is positioned between one end portion 26 of the molded paper 23 and the other end portion 27. The first hot melt adhesive-based adhesive 31 is positioned between the roll paper 35 and the forming paper 23. The first water-based adhesive 33 and the second aqueous adhesive 34 are provided between the first hot-melt adhesive-based adhesive 31 and the second hot-melt adhesive-based adhesive 32. The first water-based adhesive 33 and the second water-based adhesive 34 are provided so as to extend beyond the overlapping portion 29, and are provided at a position spanning between the one end portion 26 of the forming paper 23 and the other end portion 27, and the roll. The position between the roll paper 35 and the forming paper 23.

Each of the 108 mm filters has 10 mg of the first hot melt adhesive-based adhesive 31, 3 mg of the second hot melt adhesive-based adhesive 32, and a total of 3 mg of the first aqueous adhesive 33 and the second aqueous adhesive 34. . The first aqueous binder 33 is connected to the second aqueous binder 34.

[Comparative example]

Fig. 3 shows typical conditions of the filter portion 41 of the comparative example. Fig. 4 shows the structure of the filter portion 41 of the comparative example. The filter portion 41 of the comparative example, The other related structures are the same as those of the above embodiment except that the arrangement of the adhesives such as different types of adhesives is different. Therefore, the filter portion 41 of the comparative example will be described below, and a portion different from the filter portion 13 of the cigarette 11 of the above embodiment will be mainly described.

In the filter portion 41 of the comparative example, the water-based adhesive (second water-based adhesive 34) is placed between the one end portion 26 of the molded paper 23 and the other end portion 27 so as not to exceed the overlapping portion 29. .

[Evaluation of strength]

Next, the evaluation of the adhesion strength (tensile strength) between the filter portion 13 of the cigarette 11 of the above-described embodiment and the formed paper 23 of the filter portion 41 of the comparative example and the roll paper 35 was carried out. In this evaluation, the bonding strength of the formed paper 23 to the roll paper 35 of the first filter body 21 is measured so as to measure the tensile strength after being stored for one day or fourteen days.

The sample for evaluation was prepared in the following manner. First, a part of the filter portion 13 is cut in parallel with the direction of the central axis C so that the portion of the roll paper 35‧ forming paper 23 is cut out. Then, the filling material 37 is removed from the first filter body 21, and only the roll paper 35 is formed. Thereby, the formed paper 23 and the roll paper 35 are taken out by the structure in which the first hot melt adhesive-based adhesive 31 and the first water-based adhesive 33 are next. The tensile strength of the sample thus formed was measured using a small table tester (Shimadzu Corporation ‧ EZ Grapf 5N). At this time, the one arm of the small table test machine grasps the roll paper 35, and the other arm of the small table test machine grasps the forming paper 23, and the sample is stretched by a force of 5 N, and the roll is peeled off. Paper 35 and forming paper 23 were used to measure the strength (tensile strength). The measurement was performed 5 times, and the average value was taken as the measured value.

As a result of the test, the adhesion strength after standing for one day with respect to the examples was 0.523 N, and the adhesion strength after the first day of the comparative example was 0.166 N. Further, the adhesion strength after the storage for 14 days in the examples was 0.304 N, and the adhesion strength after the storage of the comparative example for 14 days was 0.075 N. As a result of this evaluation, it was confirmed that the examples exhibited better adhesion strength than the comparative examples in any case after one day of storage or after 14 days.

According to the first embodiment and the embodiment, the smoking article includes a cylindrical filter body and a cylindrical inner side formed by laminating the other end portion 27 opposite to the one end portion 26 to surround the filter body. The sheet is provided between the first hot melt adhesive-based adhesive 31 and the first water-based adhesive 33 provided between the filter body and the sheet, and between the one end portion 26 and the other end portion 27 The second hot melt adhesive-based adhesive 32 and the second aqueous adhesive 34 are located at the position.

Further, the filter includes a cylindrical filter body and a cylindrical inner side which is formed by laminating the other end portion 27 opposite to the one end portion 26 and surrounding the filter body. The first hot-melt adhesive-based adhesive 31 and the first water-based adhesive 33 at the position between the filter body and the sheet, and the second position between the one end portion 26 and the other end portion 27 The hot melt adhesive-based adhesive 32 and the second aqueous adhesive 34 are used.

In general, the hot melt adhesive is quick-drying, and the drying time of the aqueous adhesive is longer than the drying time of the hot melt adhesive. According to the above configuration, in addition to the hot melt adhesive, the water-based adhesive is disposed at a position between the filter body and the sheet, and at one end The position between 26 and the other end end 27. For this reason, the hot-melt adhesive-based adhesive is continuously maintained in a fast-drying property, and the water-based adhesive is used to compensate for the insufficient strength of the hot-melt adhesive-based adhesive, and the respective strengths of the two types of adhesives can be produced. Thereby, the sheet is not peeled off from the filter body, and a high quality cigarette 11 can be provided.

The first aqueous binder 33 is connected to the second aqueous binder 34. According to this configuration, the position of the filter body and the sheet, and the position between the one end portion 26 and the other end portion 27 can be disposed so as to be integrated. Therefore, in the production line of the cigarette 11, the number of nozzles for applying the water-based adhesive can be reduced, and the manufacturing cost can be reduced. Further, it is possible to hold both the surface (surface 26A) constituting one end portion 26 and the end surface 26B of one end portion 26, that is, the corner portion of one end portion 26, by a water-based adhesive coating. Therefore, the adhesion strength between the filter body and the sheet can be improved as compared with the case where only the opposite faces are joined to each other.

In this case, a cavity 24 is provided adjacent to the filter body on the inner side of the sheet. In general, when the cavity 24 is provided on the inner side of the sheet, the position of the filter body is changed to be easily displaced with respect to the sheet. According to the above configuration, the position of the filter body becomes a structure that is easily displaced with respect to the sheet. According to the above configuration, even if the position of the filter body with respect to the sheet becomes a structure that is easily displaced, it is possible to increase the relationship between the sheet and the filter body by using two types of adhesives such as a hot melt adhesive and a water-based adhesive. The subsequent strength prevents displacement of the filter body.

Smoking items are: formed into a cylindrical shape and are empty The second filter body 22 is surrounded by the cavity 24 between the filter body and the inside of the filter body, and the first hot melt adhesive agent 31 and the first water-based adhesive 33 are provided in the second filter. Between the nozzle body 22 and the sheet, the second hot melt adhesive-based adhesive 32 and the second water-based adhesive 34 are disposed between the one end portion 26 and the other end portion 27.

According to this configuration, the second filter body 22 can be followed by two types of adhesives for the sheet as in the case of the filter body. Thereby, it is possible to utilize the respective advantages of the two types of adhesives, and it is possible to provide a high-quality smoking article which improves the adhesion strength of the second filter body 22.

In the cavity 24, at least one of the sorbent particles 25 that remove the smoke component of the cigarette and the flavor enhancer particles 25 that carry the flavor component are sucked. According to this configuration, since the sorbent particles 25 can absorb a part of the tobacco smoke on the filter side, it is possible to provide a smoking article having a more scented inhalation fragrance without odor. Further, since the flavor reinforcing agent particles 25 can impart a flavor component to the tobacco smoke, the inhaled flavor can be refreshed or the inhaled flavor can be made deeper. Thereby, it is possible to provide a smoking article of higher quality which is inhaled by the aroma.

The sheet is a film. According to this configuration, even when the sheet is a film which is difficult to use with an adhesive, it is possible to ensure sufficient adhesion strength by using the two types of adhesives of the present embodiment.

The filter body contains mint. In the case where the filter body contains mint, the inventors of the present application found that the mint which is vaporized by the filter body causes the adhesive force of the hot melt adhesive-based adhesive to gradually decrease with time. According to the above structure, even in the influence of mint, the hot melt adhesive is used as an adhesive. Then, in the case where the force is lowered, the adhesion of the filter body and the sheet can be ensured by the adhesion of the water-based adhesive. That is, the hot melt adhesive can guarantee an immediate or short period of time followed by a water-based adhesive that can guarantee a longer period of time. Thereby, the two adhesives act to complement each other, and as a result, the sheet does not fall off from the filter body after a long period of time from the subsequent one. Thereby, a high quality cigarette 11 can be provided.

[Second Embodiment]

A cigarette according to an example of the smoking article of the second embodiment will be described with reference to Fig. 5. The cigarette 11 of the second embodiment is different from the first embodiment in that the first water-based adhesive 33 and the second water-based adhesive 34 are not connected, but other portions are common to the first embodiment. Therefore, the differences from the first embodiment will be mainly described, and the illustration or description of the portions common to the first embodiment will be omitted.

The filter unit 13 includes a first hot melt adhesive-based adhesive 31 provided at a position between the roll paper 35 and the forming paper 23, and is provided between one end portion 26 of the forming paper 23 and the other end portion 27. The second hot-melt adhesive 32 of the position (overlap portion 29), the first water-based adhesive 33 provided at a position between the roll paper 35 and the forming paper 23, and one end portion 26 and the other end The second water-based adhesive 34 at the position (overlap portion 29) between the portions 27. In the present embodiment, as shown in Fig. 5, the first water-based adhesive 33 and the second water-based adhesive 34 are disposed separately.

According to the cigarette 11 of the present embodiment, the following effects can be exhibited. For example, in the first embodiment, when the first water-based adhesive 33 and the second aqueous adhesive 34 are continuous, the roll paper 35 and the forming paper are formed. The position between the 23 and the position (overlap portion 29) between the one end portion 26 and the other end portion 27 of the formed paper 23 may vary depending on the amount of the water-based adhesive. According to the above configuration, the first aqueous adhesive 33 and the second aqueous adhesive 34 are disposed separately, and the amount of the aqueous adhesive can be easily controlled. Accordingly, the amount of a suitable aqueous binder can prevent the sheet from being peeled off from the filter body, and can provide a high quality cigarette.

[Third embodiment]

Referring to Fig. 6, a cigarette 11 as an example of a smoking article according to the third embodiment will be described. In the cigarette 11 of the third embodiment, the first hot melt adhesive-based adhesive 31 is connected to the second hot melt adhesive-based adhesive 32, and the first aqueous adhesive 33 and the second aqueous adhesive 34 are not connected to each other. The embodiment is different, but other parts are common to the first embodiment. Therefore, the differences from the first embodiment will be mainly described, and the parts common to the first embodiment are not shown or described.

The filter unit 13 includes a first hot melt adhesive-based adhesive 31 provided at a position between the roll paper 35 and the forming paper 23, and is provided between one end portion 26 of the forming paper 23 and the other end portion 27. The second hot-melt adhesive 32 of the position (the overlapping portion 29) is provided between the roll paper 35 and the forming paper 23, and the first water-based adhesive 33 and the other end portion 26 and the other side are provided. The second water-based adhesive 34 at the position (overlap portion 29) between the end portions 27.

In the present embodiment, as shown in Fig. 6, the first hot melt adhesive-based adhesive 31 and the second hot melt adhesive-based adhesive 32 are integrally connected to each other. In other words, the hot melt adhesive is applied to the web 35 and the forming paper 23 The position between them and the position (overlap portion 29) between one end portion 26 and the other end portion 27 are provided in a spanning manner. On the other hand, the first water-based adhesive 33 and the second aqueous adhesive 34 are separated from each other.

According to the cigarette 11 of the present embodiment, the first hot melt adhesive-based adhesive 31 is connected to the second hot melt adhesive-based adhesive 32. Therefore, the position between the filter body and the sheet and the position between the one end portion 26 and the other end portion 27 can be arranged such that the integrally connected hot melt adhesive-based adhesives are spanned. Therefore, the number of nozzles for applying the hot melt adhesive-based adhesive on the production line of the cigarette 11 can be reduced, and the manufacturing cost can be reduced. Moreover, the corners of one end portion 26 such as the surface (surface 26A) constituting one end portion 26 and the end surface 26B of one end portion 26, that is, the corners of one end portion 26 are covered with a hot melt adhesive. In this manner, the adhesion strength between the filter body and the sheet can be improved as compared with the case where only the opposing faces are followed by each other.

The smoking article (cigarette 11) is not limited to the above embodiment, and constituent elements may be changed and then embodied in the implementation stage without departing from the scope of the invention. In other words, in the above embodiment, the cavity 24 is provided between the first filter body 21 and the second filter body 22, but the cavity (groove) may be provided in the suction port 13A of the filter portion 13. . Further, the constituent elements in the different embodiments described above may be appropriately combined to realize one type of cigarette 11.

11‧‧‧ Cigarettes

12‧‧ ‧Tobacco Department

13‧‧‧Filter section

13A‧‧‧ mouthpiece

14‧‧‧ outer paper

15‧‧‧ tobacco leaves

16‧‧‧Roll paper

21‧‧‧1st filter body

22‧‧‧2nd filter body

23‧‧‧ Forming paper

24‧‧‧ cavity

25‧‧‧ granules

35‧‧‧Roll paper

36‧‧‧ openings

Claims (9)

A smoking article comprising: a cylindrical filter body, a sheet which is formed by folding one end of the opposite end portion to form a cylindrical shape and enclosing the filter body inside, and is disposed in the filter a first hot-melt adhesive and a first water-based adhesive at a position between the nozzle body and the sheet, and a second hot-melt adhesive provided at a position between the one end and the other end The agent and the second aqueous binder. The smoking article according to claim 1, wherein the first aqueous adhesive is continuous with the second aqueous adhesive. The smoking article according to claim 1, wherein the first hot melt adhesive is continuous with the second hot melt adhesive. The smoking article according to claim 1, wherein a cavity is provided on the inner side of the sheet so as to be adjacent to the filter body. The smoking article of claim 4, comprising: a second filter body formed in a cylindrical shape, and wherein the second filter system has the cavity in the second filter body and the filter The first body of the nozzle is wrapped around the inside of the sheet, and the first hot-melt adhesive and the first water-based adhesive are disposed between the second filter body and the sheet, and the second heat a melt adhesive and the aforementioned second water system The agent is disposed at a position between the one end portion and the other end portion. The smoking article according to claim 5, wherein the cavity is filled with at least one of the absorbing material particles that partially absorb and remove the tobacco smoke component and the granules that hold the flavor component. The smoking article of claim 1, wherein the sheet is a film. The smoking article of claim 1, wherein the filter body comprises mint. A filter comprising: a cylindrical filter body, a sheet which is formed by laminating one end portion on the opposite side to form a cylindrical shape and enclosing the filter body inside, and is disposed in the filter a first hot-melt adhesive and a first water-based adhesive at a position between the nozzle body and the sheet, and a second hot-melt adhesive provided at a position between the one end and the other end The agent and the second aqueous binder.