KR20190040885A - Tow band for electronic cigarette tip and tip for electronic cigarette - Google Patents

Abstract

In a tip for an electronic cigarette, it is possible to suppress decrease in hardness while suppressing the degree of filtration of aerosols. A tow band of cellulose acetate is formed by a plurality of filaments which are bundled together and crimped, wherein a total denier is set to have a value in a range of 23,000 to 45,000, a filament denier is set to have a value in a range of 7.0 or more and less than 30.0, and a pellet area of the filament is set to have a value in a range of 0.6 or more and less than 0.8.

Description

TECHNICAL FIELD [0001] The present invention relates to a tobacco band for electronic cigarette tips and a tip for electronic cigarettes,

The present invention relates to a tobacco band for electronic cigarette tips and a tip for electronic cigarettes.

In this document, the following defined terms are used.

TD: Total fiber degree (total denier), which indicates the fiber count (grams per 9000 m) of the aggregate (toe band) of the tow.

FD: Short fiber length (filament denier), which indicates the fiber count of single fibers (one filament) (grams per 9000 m). It is also referred to as short fiber denier.

Filament: refers to a continuous long fiber. In particular, it refers to a short fiber discharged from a discharge hole of a spinneret.

Radiator: It is formed in the spinneret of the spinneret and discharges (radiates) the filament.

Tow band: Tows which are aggregates of filaments (staple fibers) discharged from each of a plurality of radiation cylinders are combined, and TD is set to a predetermined value. And the tow whose TD is set to a predetermined value is crimped. This crimped tow (a collection of filaments) is called a tow band. That is, the tow band has a TD and a crimp number. The tow band is wrapped in a veil.

TOW: refers to a plurality of filament assemblies discharged from a radiation hole. It is one aspect of endnany dowry.

End: refers to an aggregate of filaments which are united (converged) so that a plurality of filaments discharged from a radiation hole of a plurality of radiation tubes have a predetermined total denier.

Yarn: A bundle of filaments discharged from one spinneret. Thus, the yarn is a collection of filaments before they are combined.

Pellet Area: Indicates one of the indexes available for evaluating the releasability of the cross section of the filament. At the time of drawing out the pellet area, the section of the filament is taken by cutting perpendicularly to the longitudinal direction of the filament from any position of the filament. A parallelogram that circumscribes this cross section is fictitious. In this virtual parallelogram, two of the two sets of stools are two parallel lines circumscribed on the end face of the filament, and the two lines have a line-to-line distance of a maximum value (so-called maximum Feret diameter). In the virtual parallelogram, the other of the two sets of stools is two parallel lines circumscribing the end face of the filament, and the two parallel lines are the minimum line distance (so-called minimum feret diameter). The pellet area is the area ratio obtained by dividing the cross-sectional area of the filament by the area of the imaginary parallelogram, in other words, the occupancy of the cross section of the filament in the virtual parallelogram.

Ratio (S / L): Indicates one of the indices available for evaluating the releasability of the section of the filament when the cross-sectional area of the filament is S and the circumferential length of the filament is L.

Tip: Refers to a filter that passes cigarette components during cigarette smoking or electronic cigarette use. The tip is formed by, for example, molding a predetermined breathable material into a rod shape and winding a wrapper around the outer periphery thereof.

Filaments composed of cellulose acetate, especially cellulose diacetate, are useful as a material for a tobacco tip containing an electronic cigarette. In this use, for example, a cellulose acetate tow band composed of filaments of crimped long-fiber cellulose acetate is used.

The tow band used for the tip of the cigarette is required to have a proper ventilation resistance (PD). Therefore, for example, Patent Document 1 discloses a toe band used for a tobacco tip, in which the filament denier is set to a value of 5.0 or more and the filet area of the filament is set to a value of 0.5 or more, .

Recently, electronic cigarettes have become popular. As disclosed in, for example, Patent Document 2, the electronic cigarette includes a base material containing a volatile component which is a tobacco component, a heating section for heating the base material, and a heating section for cooling and coagulating the volatile components from the heated base material to form an aerosol And a tip for filtering the aerosol that has passed through the cooling section.

The tip is tied to the user when using the electronic cigarette. The tip is made, for example, by a cellulose acetate tow band (hereinafter simply referred to as a tow band). In this case, the tow band is opened to impregnate a plasticizer and molded into a rod shape. Then, a wrapping paper is wound around the outer periphery of the formed body of the toe band, and the formed body and the wrapping paper are cut to predetermined dimensions to produce a tip.

International Publication No. 2015/136573 Japanese Patent Publication No. 2015-503335

In the electronic cigarette, since the tobacco component is contained in the aerosol, the degree of filtration of the aerosol of the tip is preferably low so that the user can easily suck and taste the aerosol that has passed through the tip. It is also desired that an electronic cigarette has a suction feeling close to a normal cigarette. For this reason, it is preferable that the tip of the electronic cigarette has a suitable hardness such as a tip of a conventional cigarette.

Here, in order to suppress the degree of filtration of the aerosol of the tip, for example, if the number of filaments of the toe band included in the tip is reduced, the hardness of the tip is lowered and a suction feeling similar to that of a typical cigarette .

The object of the present invention is to suppress the degree of filtration of aerosols while suppressing the decrease in hardness in the tip of the electronic cigarette.

In the electronic cigarette tip, the aerosol collides with the filament of the tow band and is collected. It can be seen from the present inventor's investigation that the capturing ability of the aerosols of the filaments is substantially equivalent to that of the aerosols of the virtual filaments having the cross section of the imaginary parallelogram. When the releasability of the cross section of the filament becomes larger, the pellet area becomes smaller. Further, when the releasability of the section of the filament becomes small, the pellet area becomes large.

Further, in the tip for electronic cigarette, the smaller the ratio (S / L) of the filament of the tow band is, the larger the cross-sectional area of the filament, and furthermore, the capturing performance of the filament aerosol becomes higher with respect to the tow injection weight with respect to the tip. When the releasability of the cross section of the filament increases, the ratio (S / L) becomes small. Further, when the releasability of the section of the filament becomes small, the ratio (S / L) becomes large.

The inventors of the present invention have found that compared with the case where the electronic cigarette tip is produced by the tobacco of the equivalent mass composed of the filament having the modified cross section by manufacturing the electronic cigarette tip by the toe band having the relatively large filet area, It has been found that the filtering ability of the aerosol can be suppressed by lowering the capturing ability of the filament in the electronic cigarette tip.

Further, the inventors of the present invention have found that the filtration degree of aerosol can be suppressed by adjusting the ratio (S / L) to a suitable range value by setting the filament denier to a value within a specific range. Each of the following aspects of the present invention is based on such a viewpoint.

That is, the toe band for electronic cigarette tips according to one aspect of the present invention is a toe band of cellulose acetate, which is formed by coalescing and crimping a plurality of filaments in a polyphase manner, wherein the total denier is a value in the range of 23000 to 45000 And the filament denier is set to a value in the range of 7.0 or more and less than 30.0, and the pellet area of the filament is set to a value in a range of 0.6 or more and less than 0.8.

According to the above constitution, since the pellet area of the filament is set to a value within the range of 0.6 or more and less than 0.8, the releasability of the section of the filament is suppressed. Therefore, the electronic cigarette tip manufactured by the toe band can suppress the degree of filtration of the aerosol as compared with the electronic cigarette tip produced by the toe band having a pellet area of less than 0.6 and a filament of the same mass have.

Since the total denier is set to a value in the range of 23000 to 45000 and the filament denier is set to a value in the range of 7.0 or more and less than 30.0, the filament denier is set to a value in the range of less than 30.0, It is possible to prevent a decrease in the hardness of the tip caused by the tip. Therefore, it is possible to obtain an excellent suction feeling close to a typical cigarette.

The tobacco for electronic cigarette tip according to another aspect of the present invention is a toe band of cellulose acetate which is obtained by bundling and crimping a plurality of filaments in a multi-filament fashion, wherein the total denier is a value in a range of 23000 to 45000 And the filament denier is set to a value in the range of 7.0 or more and less than 30.0, and the area of the cross section of the filament is S and the circumferential length of the cross section is L, the ratio of the area to the circumferential length (S / L) is set to a value of 5.0 or more.

According to the above arrangement, since the ratio (S / L) is set to a value of 5.0 or more, the releasability of the section of the filament is suppressed similarly to the case where the pellet area of the filament is set to a value within the range of 0.6 or more and less than 0.8 . Therefore, the electronic cigarette tip manufactured by the tobacco has a smaller degree of filtration of the aerosol than the electronic cigarette tip produced by the toe band having a ratio (S / L) of less than 5.0 and a filament of the same mass Can be suppressed.

Since the total denier is set to a value in the range of 23000 to 45000 and the filament denier is set to a value in the range of 7.0 or more and less than 30.0, the filament denier is set to a value in the range of less than 30.0, It is possible to prevent a decrease in the hardness of the tip caused by the tip. Therefore, it is possible to obtain an excellent suction feeling close to a typical cigarette.

Further, an electronic cigarette tip according to another aspect of the present invention includes a molded body in which the tow band of any of the above embodiments is molded into a rod shape, and a wrapper wrapped around the molded body. As a result, it is possible to manufacture an electronic cigarette tip capable of obtaining an excellent suction feeling close to a conventional cigarette.

The length dimension of the tip may be set to a value in the range of 5 mm or more and 35 mm or less. This makes it possible to make the sensation of the user biting the tip closer to the user's sensation when the tip of the conventional cigarette is touched, thereby further improving the suction feeling of the electronic cigarette.

The degree of filtration of the aerosol may be less than 20%. As a result, the user can more easily suck the aerosol of the electronic cigarette.

According to each aspect of the present invention, the degree of filtration of the aerosol can be suppressed while suppressing the decrease in hardness of the tip for electronic cigarette.

1 is an overall view of a toe band producing apparatus according to the embodiment.
2 is an overall view of a tip manufacturing apparatus according to the embodiment.
3 is a sectional view of the electronic cigarette according to the embodiment.

(Embodiments)

Embodiments of the present invention will be described with reference to the drawings.

[Cellulose acetate toe band manufacturing apparatus]

1 is an overall view of a cellulose acetate (hereinafter also referred to as CA) toe band manufacturing apparatus 1. Fig. CA tow band manufacturing apparatus 1 emits CA filament 61 by dry spinning. The CA toe band manufacturing apparatus 1 also manufactures the yarn 62, the end 63 and the CA tow band 64 by the CA filaments 61.

The CA toe band manufacturing apparatus 1 includes a mixing device 2, a filtration device 3, a spinning unit 4, an oil agent impregnation unit 5, a high detol roll 6, a guide pin 7 , 8), a crimping device (9), and a drying device (10).

In the CA tow band producing apparatus 1, a cellulose acetate flake such as cellulose diacetate is added to an organic solvent at a predetermined concentration (for example, a weight concentration value ranging from 20 wt% to 30 wt% of the spinning stock solution 60) The dissolved source stock solution 60 is used.

The fiberizable liquid 60 is mixed by the mixing device 2 and then filtered by the filtration device 3. [ The spinning stock solution 60 having passed through the filtration device 3 is discharged from a plurality of spinning holes of the spinneret 15 provided on the spinneret 14 of the spinning unit 4. [

The radiation hole is formed in a circular shape. The diameter of the radiation hole is appropriately set in accordance with the FD of the CA filament 61 after production. The spinning solution discharged from each spinning hole is dried by evaporating the organic solvent by the hot air supplied from the drying unit (not shown) into the spinning tube 14. As a result, a solid CA filament 61 is formed.

Here, since the radiating hole of the spinnerette 15 is circular, the cross section of the CA filament 61 becomes circular, and the release of the cross section of the CA filament 61 is suppressed. That is, the cross-sectional shape of the CA filament 61 is determined by the evaporation rate, which is the rate at which the organic solvent evaporates from the surface of the spinning stock solution 60 that has passed through the spinning hole, and the rate at which the organic solvent of the spinning stock solution 60, And the diffusion speed diffused from the center of the spinning stock solution 60 to the surface. If the surface area of the spinning solution 60 that has passed through the spinning hole is large, the evaporation speed is faster than the diffusion speed, the organic solvent is diffused from the inside of the filament after the surface of the filament is solidified, easy.

On the contrary, in the present embodiment, since the radial hole is circular, the evaporation surface area of the spinning liquid 60 passing through the radiating hole is reduced, so that the evaporation speed is suppressed from being faster than the diffusion speed. As a result, the cross section of the CA filament 61 becomes circular, and the pellet area is set to a value to be described later, so that the release of the cross section of the CA filament 61 is suppressed.

Further, the S / L value of the CA filament 61 is set to a value to be described later by being discharged from a circular radiation hole whose diameter is properly set. The basic description of the method for radiating the desired CA filament 61 by adjusting the values of the pellet area and the S / L of the CA filament 61 can be found in the above-described Patent Document 1. [

The plurality of CA filaments 61 having passed through one radiation cylinder 14 are converged by the guide pins 7 and 8 to become the yarns 62. [ The yarn (62) is wound by the high-defet roll (6) after the fiber emulsion is stuck by the emulsion-added unit (5). The yarn 62 is then collected by a predetermined winding device.

A spinning unit 4 for discharging the spinning stock solution 60 from the spinneret 15 and spinning the CA filaments 61, a drying unit, an emulsion impregnation unit 5 ), And a winding unit having a high detol are collectively referred to as a station. Typically, a plurality of stations are arranged in a line.

The yarn 62 is collected by a winding device from the circumferential surface of the high-defect roll 6. The yarns 62 passing through the respective stations are conveyed along the arrangement direction of the stations and are sequentially stacked or laminated. As a result, a plurality of yarns 62 are converged to form an end (tow) 63, which is a flattened assembly of the yarns 62. The end 63 has a plurality of yarns 62 converged and set to a predetermined TD. The end 63 is conveyed and guided to the crimping device 9.

The crimping device 9 has a pair of nip rolls 16, 17 and a stuffing box (crimp box) 18. The end 63 passes between the pair of nip rolls 16 and 17, and then is press-fitted into the stuffing box 18. The end 63 is pressed into the stuffing box 18 with a force larger than the resistance when the end 63 is pressed into the stuffing box 18 so that the end 63 is crimped. Thereby, the CA tow band 64 is produced.

The CA tow band 64, which has passed through the crimping device 9, is dried by the drying device 10. After the CA toaw band 64 having passed through the drying device 10 is accumulated, it is packed in a packing container 19 and packed into a veil. The packaging container 19 of Fig. 1 has a sectional structure.

The CA tow band 64 manufactured by the CA toe band manufacturing apparatus 1 of the present embodiment is set such that TD is set to a value in the range of 23000 to 45000 and FD is set to a value in the range of 7.0 to less than 30.0 And the pellet area of the CA filament 61 is set to a value in a range of 0.6 or more and less than 0.8.

The CA tow band 64 is set such that the TD is set to a value in the range of 23000 to 45000, FD is set to a value in the range of 7.0 to less than 30.0, and the ratio (S / L) of the CA filament 61 is , And is set to a value of 5.0 or more.

The value of TD of the CA tow band 64 can be suitably set within the above range, but is preferably a value in a range of 23000 to 40000, more preferably in a range of 23000 to 38000, more preferably in a range of 23000 to 35000 More preferably in the range of < RTI ID = 0.0 >

The value of FD of the CA tow band 64 can be suitably set within the above range, but is preferably a value in the range of 7.0 to less than 29.0, more preferably in the range of 7.0 to 25.0, more preferably 7.0 or more More preferably 20.0 or less.

[Tip Manufacturing Apparatus]

2 is an overall view of the tip manufacturing apparatus 20 according to the embodiment. 2, the tip manufacturing apparatus 20 includes a convergent ring 21, a first carding unit 22, a turn baffle 23, a second carding unit 24, a pair of pretension rolls 25, The first opening roll pair 26, the second opening roll pair 27, the third carding unit 28, the plasticizer impregnation device 29, the transport roll pair 30, the transport jet 31, (A tube portion) 32, and a cutting device 33. The packaging container 19 of Fig. 2 has a sectional structure.

In the tip manufacturing apparatus 20, after the CA tow band 64 pulled up from the inside of the packing container 19 is inserted into the convergent ring 21, the first dog card unit 22 is pressurized by pressurized air And is opened in the width direction. The CA tow band 64 is then guided by the turn baffle 23.

Next, the CA tow band 64 is further opened in the width direction by the pressurized air in the second carding unit 24, and thereafter the CA tow band 64 is sandwiched between the pair of pretension rolls 25, And the second pair of needle rolls 27 in this order, thereby being carded in the conveying direction of the CA tow band 64.

The CA tow band 64 passed between the second pair of needle rolls 27 is further opened in the width direction by the pressurized air in the third carding unit 28, .

The CA tow band 64 that has passed through the plasticizer impregnation device 29 is inserted between the transport roll pairs 30 and then introduced into the transport jet 31 to be transported to the winding section 32 by the jet stream do.

The winding section 32 has a funnel 41, a tongue 42, and a cargo 43. The CA tow band 64 carried into the winding section 32 is wound in a spiral shape on the panel 41 and molded into a rod shape. Thus, a molded body 65 in which the CA tow band 64 is molded into a rod shape is formed.

Further, the wrapping paper 40 is guided by the tongue 42 toward the formed body 65. The molded body 65 is conveyed by the garbage 43 and the winding paper 40 is wound and fixed to the outer periphery thereof.

The cutting apparatus 33 cuts the formed body 65 at intervals. Thus, the plug 66 is manufactured. By further cutting the plug 66, the tip 67 is produced.

[Electronic cigarette tips]

3 is a sectional view of the electronic cigarette 50 according to the embodiment. The electronic cigarette 50 is an elongated phase and has an electronic cigarette unit 51 and an aerosol-generating article 52. The electronic cigarette unit 51 has a casing 53, a power supply 54, a display unit 55, a control unit 56, a heating unit 57, and an operation unit 58.

The casing 53 is formed in a long shape. The power source 54, the control unit 56, and the heating unit 57 are accommodated in the casing 53. [ The display portion 55 and the operating portion 58 are disposed on the outer surface of the casing 53 (here, the side surface of the casing 53 on the side of the paper surface). The shape of the casing 53 is a rectilinear shape in which one end in the longitudinal direction of the electronic cigarette unit 51 is closed in the present embodiment, but is not limited thereto.

The control unit 56 is connected to the power source 54, the display unit 55, and the heating unit 57 by wiring 68. [ The control unit 56 is a one-chip microcomputer as an example, and accepts a user's operation input from the operation unit 58. [ The control unit 56 controls the electronic cigarette unit 51 such that the power of the power source 54 is supplied to the heating unit 57 at a predetermined timing or the supply of the power to the heating unit 57 is interrupted And controls the power supply circuit. The control unit 56 also controls the display unit 55 to display predetermined information toward the user.

The power source 54 is, for example, a secondary battery, and here, it is a lithium ion battery. The display unit 55 is an LCD, but does not need to display characters. The display unit 55 may be a lamp such as an LED lamp when characters are not displayed.

The heating section 57 heats the base material 70 of the aerosol-generating article 52 by the electric power supplied from the power source 54. [ The heating unit 57 is formed in the electronic cigarette unit 51 so as to be in contact with the base material 70. The heating section 57 of the present embodiment is inserted into the base material 70 and has a blade 70a for heating the base material 70 from the inside by a joule heat. A flow path 59 for allowing the outside air to flow from the gap between the insertion port 51a and the aerosol generation article 52 toward the substrate 70 during use of the electronic cigarette 50 is provided between the casing 53 and the heating section 57 Is formed.

The aerosol generating article 52 is inserted into the insertion port 51a formed at the other end in the longitudinal direction of the electronic cigarette unit 51 when the electronic cigarette 50 is used. The aerosol generating article 52 is in the form of a rod and has a substrate 70, a separator pipe 71, an aerosol generating portion 72, a tip 67 and a wrapper 73. The base material 70, the separator pipe 71, the aerosol generating portion 72, and the tip 67 are arranged in this order from one longitudinal end of the aerosol generating article 52 toward the other end. The wrapping paper 73 integrally winds the outer peripheries of these elements 66, 70 to 72.

The base material (70) is disposed at one end in the longitudinal direction of the aerosol generation article (52). The base material 70 contains a volatile component which is a tobacco component and is inserted into the inside of the electronic cigarette unit 51 from the insertion port 51a of the electronic cigarette unit 51. The base material 70 generates volatile components by being heated in the heating portion 57 when the electronic cigarette 50 is used.

The substrate 70 contains a flavoring material, such as nicotine, which generates a volatile component. Specifically, the substrate 70 preferably contains at least one of tobacco leaves, tobacco ribs, expanded tobacco, homogenized tobacco, and herb leaves. These materials may be contained in a solid such as, for example, three fragments, powder, yarn, or band shape, or may be contained in a liquid, or may be contained in both solid and liquid forms . When the material is contained in a liquid, the liquid of the material may be sealed in the capsule. Such a capsule is heated and melted when the electronic cigarette 50 is used.

The base material 70 may contain a flavoring material other than nicotine. The flavoring material may be held on a thermally stable carrier. The flavoring material may be held in the form of a sheet, a foam, a gel, or a slurry in the form of a carrier. The flavoring material may be uniformly contained in the entirety of the base material 70, or may be contained in the base material 70 in a localized manner.

The separator pipe 71 extends in the longitudinal direction of the aerosol generation article 52 and is disposed between the base material 70 and the aerosol generation portion 72 to thereby separate the base material 70 from the aerosol generation portion 72 And functions as a separator. Thereby, when the aerosol-generating article 52 is inserted into the inside of the electronic cigarette unit 51 from the insertion port 51a, the separator pipe 71 compresses the aerosol-generating article 52 in the longitudinal direction, ) To the extent that it makes contact with the aerosol generating portion (72).

The separator pipe 71 of the present embodiment is formed as a hollow rod shape. The volatile component generated from the base material 70 flows to the tip 67 at the hollow portion of the separator pipe 71 when the electronic cigarette 50 is used. As an example, the separator pipe 71 is made of cellulose diacetate, but not limited thereto, and may be made of other materials such as polypropylene.

The aerosol generating portion 72 generates aerosol by extending in the longitudinal direction of the aerosol generating article 52 and cooling and coagulating the volatile component from the base material 70 which has passed through the separator pipe 71.

The aerosol generating portion 72 may be a belt-shaped sheet member wound in the circumferential direction of the aerosol-generating article 52 or a belt-shaped sheet member in which each folding line extends in the longitudinal direction of the aerosol- And a sheet body. In the aerosol generating portion 72, the flow path of the aerosol is formed by the clearance of the sheet body which is wound or finely folded like this.

The sheet body of the aerosol generating portion 72 may be made of, for example, polyethylene, polypropylene, polyvinyl chloride, PETG (high strength polyethylene terephthalate (polyethylene terephthalate copolymer)), polylactic acid, cellulose acetate, , Porous paper, aluminum foil, and the like. Considering that the aerosol generating article 52 is a disposable article, it is preferable that the sheet body is made of a material such as biodegradable polylactic acid or porous paper.

The tip 67 of the present embodiment is manufactured by the tip manufacturing apparatus 20 using the CA tow band 64 manufactured by the CA tow band producing apparatus 1. [ The tip 67 is disposed at the other end in the longitudinal direction of the aerosol generating article 52.

The tip 67 is provided with a formed body 65 and a wrapping paper 40 wound around the formed body 65. The tip 67 bites on the user during use of the electronic cigarette 50 and filters the aerosol that has passed through the aerosol generating portion 72.

Here, it is preferable that the suction feeling of the electronic cigarette is close to the suction feeling of a conventional cigarette. For this reason, the tip 67 is composed of a CA toe band 64 formed by crimping and crimping a plurality of CA filaments 61 in the same manner as a conventional cigarette tip.

The length dimension of the tip 67 (dimension of the tip 67 in the inserting direction of the electronic cigarette 50 with respect to the insertion port 51a) can be set appropriately and is set to, for example, 5 mm or more and 35 mm or less It is set to the value of the range. The length of the tip 67 may be set to any one of 5 mm, 7 mm and 10 mm and the upper limit may be set to any one of 17 mm, 20 mm, 25 mm, 28 mm, 30 mm, and 35 mm The value of the range can be set.

Here, the ventilation resistance (PD) of the tip 67 is proportional to the length dimension of the tip 67. Therefore, the ventilation resistance of the tip 67 to be manufactured can be calculated by comparing the length dimension of the tip 67 with the length dimension of the tip 67, which is already known as the ventilation resistance. The circumferential length of the tip 67 can be set appropriately, but is set to a value larger than 19 mm as an example, and is set to 24.5 mm in this example.

When the electronic cigarette 50 is used, the user inserts the aerosol-generating article 52 from the insertion port 51a into the inside of the electronic cigarette unit 51 and operates the operating unit 58 to move the electronic cigarette unit 51, Turn on the power of the unit.

Thereby, the control section 56 controls the power supply circuit to heat the heating section 57 by the power from the power supply 54. [ When a predetermined period of time has elapsed while the heating section 57 is heated up to the predetermined temperature, the control section 56 displays to the user that smoking is enabled through the display section 55. [

The user vibrates by breathing the tip 67 to volatilize the volatile component heated by the heating unit 57 and volatilized from the base material 70 to flow through the separator pipe 71. [ The volatile components that have passed through the separator pipe (71) are cooled and agglomerated when they flow through the gaps of the aerosol generation part (72). As a result, an aerosol (droplet) containing a volatile component is generated.

The aerosol that has passed through the aerosol generating portion 72 is appropriately filtered by the tip 67 and sucked by the user. As the aerosol impinges on the CA tow band 64 used in the tip 67, the aerosol is further lowered and sucked to the user.

Here, the CA tow band 64 is set such that the TD is set to a value in the range of 23000 to 45000, FD is set to a value in the range of 7.0 to less than 30.0, and the pellet area of the CA filament 61 is 0.6 or more and 0.8 Is set to a value within a range of " less than "

The CA tow band 64 is set such that the TD is set to a value in the range of 23000 to 45000, FD is set to a value in the range of 7.0 to less than 30.0, and the ratio (S / L) of the CA filament 61 is , And is set to a value of 5.0 or more.

As described above, in the tip 67, since the pellet area of the CA filament 61 is set to a value within the range of 0.6 or more and less than 0.8, the release of the cross section of the CA filament 61 is suppressed. Therefore, the tip 67 produced by the toe band 64 can suppress the degree of filtering of the aerosol as compared with the tip for electronic cigarette produced by the toe band having a pellet area of less than 0.6 and a filament of the same mass can do.

According to the tip 67, the release of the cross section of the CA filament 61 is also suppressed by setting the ratio (S / L) to a value of 5.0 or more. Therefore, compared to the tip for electronic cigarette manufactured by the toe band having the ratio (S / L) of less than 5.0 and the equivalent mass of the filament, the tip 67 produced by the toe band 64 has a smaller The degree of filtration can be suppressed.

Since TD is set to a value in a range from 23000 to 45000 and FD is set to a value in a range from 7.0 to less than 30.0, the CA filaments 61 It is possible to prevent the hardness of the tip 67 from being lowered. Therefore, it is possible to obtain an excellent suction feeling close to a typical cigarette.

In addition, since the length of the tip 67 is set to a value in the range of 5 mm or more and 35 mm or less, the sensation when the user is biting the tip 67 is set to be a value It is possible to bring the electronic cigarette 50 closer to the senses and further improve the suction feeling of the electronic cigarette 50.

In addition, since the filtration degree of the aerosol of the tip 67 is less than 20%, the user can more easily suck aerosols of the electronic cigarette 50.

(Confirmation test)

EXAMPLES Next, examples and comparative examples will be described, but the present invention is not limited to these examples. The CA tow band 64 associated with the example was prepared in the following sequence. That is, cellulose diacetate having an average degree of acetalization of 55.2% was dissolved in acetone to prepare a spinning stock solution (60) having a concentration of about 25 mass%.

The spinning liquid 60 was supplied to the spinneret 15 while the temperature was adjusted to 50 to 60 ° C. The radiation hole of the spinneret 15 was formed into a circular shape having a diameter of 71 탆. The spinning stock solution 60 was discharged from the spinneret 15 into the spinneret 14 and spun off the CA filaments 61. In the radiation tube 14, in order to evaporate acetone, the CA filaments 61 were allowed to be heated to a temperature of 120 ° C or higher and 150 ° C or lower.

An oil emulsion was applied by the emulsion impregnation unit 5 to the yarn 62 discharged from the radiation cylinder 14 and the yarn 62 was wound by the high-precision roll 6. The end 63 formed by unifying the yarns 62 was crimped by the crimping device 9 and dried by the drying device 10. As a result, the CA toe band 64 of the embodiment having the FD set to 8.6 and the TD set to 31000 was obtained.

The CA tow band related to the comparative example was manufactured in the same manner as in the example except that a spinneret having a triangular radiating hole with a side of about 96 mu m was used. As a result, the CA tow band of the comparative example in which FD was set to 8.6 and TD was set to 31000 was obtained. Next, regarding the examples and the comparative examples, a pellet area, a ventilation resistance, a tar filtration rate (degree of filtration), and a nicotine filtration rate (degree of filtration) were measured by the following measuring methods.

[Pellet Area]

Filament samples were prepared from the CA tow band related to Examples and Comparative Examples in the following order. That is, a part of the fiber was taken out from the CA tow band, and the inside of the fiber was arranged as a long-core core, and the outer periphery of the core was wrapped with paraffin. The thus prepared filament sample was sliced by a microtome to a thickness in the range of 1 占 퐉 to 10 占 퐉 to obtain a sample slice.

The sample slice was observed with an optical microscope ("BX-51" manufactured by Olympus Corporation), and an image obtained by observation was introduced into an image processing apparatus. The image processing apparatus was set up with a virtual parallelogram which was in contact with the end face of one CA filament included in the image, and the cross-sectional area of the CA filament and the area of the virtual parallelogram were measured. The pellet area of the CA filament was calculated by measuring the cross-sectional area of the CA filament and the area of the imaginary parallelogram.

[S / L ratio]

The sample slice relating to Examples and Comparative Examples was observed by the optical microscope and an image obtained by observation was introduced into the image processing apparatus. In this image processing apparatus, the cross-sectional area of one CA filament included in the image and the circumferential length of the cross-section were measured. The S / L ratio of the CA filaments was calculated from the measured values of the cross-sectional area and the circumferential length of the CA filaments.

[Aeration Resistance]

A filter rod (plug) sample was produced in the following order by the CA tow band related to Examples and Comparative Examples. That is, the CA tow band of the examples and comparative examples manufactured using the CA tow band producing apparatus was focused to a predetermined diameter using a tip producing apparatus. The CA tow band was formed into a rod shape, the wrapping paper was wound around the outer periphery thereof, and the wrapping paper was fixed to the CA tow band to obtain a filter rod sample.

The filter rod sample was set to have a rod length of 120 mm, a circumferential length of 24.5 mm, and an injection amount (net touched weight) of 0.705 g / rod. The filter rod samples thus prepared were stored for 24 hours in an air conditioner set at a temperature of 20 ° C and a humidity of 65%, and then humidified.

Next, air adjusted to a temperature of 22 ± 1 ° C and a humidity of 60 ± 10% was passed longitudinally through the filter rod sample at a flow rate of 17.5 cc / sec. The pressure difference [mmWG] (millimeter water gauge) at both ends of the filter rod sample at this time was measured as aeration resistance. Further, it was assumed that the filter rod sample did not have a through hole penetrating the wrapper.

[Tar · nicotine filtration rate]

A cigarette sample was prepared from the CA tow band related to Examples and Comparative Examples in the following order. That is, the filter rod sample was cut in the diametrical direction, and a piece of cigarette tobacco ("Pis Light" manufactured by Nippon Tobacco Industries Co., Ltd.) in which the filter was formed was connected to the cut piece to obtain a cigarette having a tip (length of 25 mm) A sample was prepared.

The cigarette sample was smoked using a rotary smoking machine (" MR20D " manufactured by Borgwaldt kc), and the volatile components containing tar and nicotine were filtered by a Cambridge filter installed on the tip and inlet side of the cigarette sample. From the weight difference between the tips before and after smoking and the weight of the Cambridge filter, the total amount of volatile components from the tobacco leaves in the cigarette sample was measured.

30 ml of methanol and 4 ml of an anthole (0.65 g) / methanol (1000 ml) mixture were mixed. The tip and the Cambridge filter were immersed in a mixed solution and the mixture was vibrated with an ultrasonic cleaner for 30 minutes to extract volatile components. And the water content in each of the extracts was measured using a moisture analyzer ("Karl Fischer moisture meter (CA-06 type)" manufactured by Nippon Sanso Co., Ltd.).

The amount of nicotine was measured using a gas chromatograph (GC-2014 GASCHROMATOGRAPH, manufactured by Shimadzu Corporation). The tar filtration rate and the nicotine filtration rate were calculated from the measured values of the total amount of volatile components, the amount of water, and the amount of nicotine obtained by the following equations.

Nicotine filtration rate = FTN / (FTN + CFN)

Tar filter ratio = (FTV - FTN - FTW) / [(FTV - FTN - FTW) + (CTV - CTN - CTW)]

Here, FTN is the amount of nicotine in the tip, CFN is the amount of nicotine in the Cambridge filter, FTV is the total amount of volatile components in the tip, CFV is the total volatile component amount of the Cambridge filter, FTW is the water amount of the tip, and CFW is the water amount of the Cambridge filter.

Table 1 shows the CA tow band property, the filter rod sample (cigarette sample) property, and the measurement results related to the examples and the comparative examples.

As shown in Table 1, in the filter rod sample of the example, it was confirmed that the pellet area of the CA filament 61 was set to 0.71 and the S / L ratio of the CA filament 61 was set to 7.7. In the filter rod sample of the comparative example, it was confirmed that the pellet area of the CA filament was set to 0.42 and the S / L ratio of the CA filament was set to 4.8.

Thus, the value of the pellet area in the embodiment is larger than the value of the pellet area in the comparative example, and the value of S / L in the embodiment is larger than the value of S / L in the comparative example. It was confirmed that the releasability of the cross section of the CA filament 61 in the example was suppressed more than the releasability of the cross section of the CA filament in the comparative example.

It was also found that both the tar filtration rate and the nicotine filtration rate of the filter rod sample of the example were reduced as compared with the filter rod sample of the comparative example produced by the CA toe band of the same mass as the CA toe band 64 of the example .

In addition, the filter rod samples of the examples and the comparative examples had a circumferential length equal to each other, and the CA tow band injection amount was relatively large. However, it was found that the ventilation resistance of the cigarette sample of the example was lower than the ventilation resistance of the cigarette sample of the comparative example, specifically to a value of 2/3 or less of the ventilation resistance of the cigarette sample of the comparative example.

As a result, in the electronic cigarette tip 67 manufactured by the CA toe band 64 of the embodiment, the ventilation resistance can be well suppressed while maintaining the hardness when the user bites, It is considered that an excellent suction feeling near the cigarette can be obtained.

According to another examination conducted by the inventors, in the tip having the same configuration as that of the electronic cigarette tip 67 manufactured by the CA toe band 64 of the embodiment, the length of the tip is set to 5 mm or more Mm, the same effect as that of the embodiment can be obtained by calculation based on the ventilation resistance value of the embodiment.

As described above, the electronic cigarette tip 67 manufactured by the CA toe band 64 has comparatively low air resistance, so that the length of the electronic cigarette 67 can be relatively long, for example. Therefore, it is considered that the degree of freedom in designing the length dimension of the electronic cigarette tip 67 can be improved.

According to another examination conducted by the inventors, TD is set to a value in a range from 23000 to 45000 other than 31000, FD is set to a value in a range from 7.0 to less than 30.0 other than 8.6, and the number of CA filaments 61 It was found that the same effect as that of the embodiment can be obtained by manufacturing the electronic cigarette tip 67 with the CA toe band 64 in which the pellet area is set to a value in the range of 0.6 to less than 0.8 other than 0.71.

The TD is set to a value in the range of 23000 to 45000 other than 31000, FD is set to a value in a range of 7.0 to less than 30.0 other than 8.6, and the ratio (S / L) of the CA filament 61 is set to 7.7 It is found that the same effects as those of the embodiment can be obtained by manufacturing the electronic cigarette tip 67 with the CA tow band 64 set to a value other than 5.0.

The present invention is not limited to the embodiments and can be modified, added, or deleted without departing from the spirit of the present invention.

INDUSTRIAL APPLICABILITY As described above, the present invention has an excellent effect of suppressing the degree of filtration of aerosols while suppressing the decrease in hardness of the tip for electronic cigarette. Therefore, it is advantageous to widely apply the present invention to a tobacco for electronic cigarette tip and an electronic cigarette tip that can show the significance of this effect.

40: Bibliography
50: Electronic cigarette
61: CA filament
64: CA tow band
65: molded article
67: Tips for electronic cigarettes

Claims (5)

Claims [1] A tow band of cellulose acetate, comprising a plurality of filaments assembled in multiple foams and crimped,
The total denier is set to a value in the range of from 23000 to 45000 and the filament denier is set to a value in the range from 7.0 to less than 30.0 and the filet area of the filament is set to a value in the range of 0.6 to less than 0.8 The toe band for electronic cigarette tips. Claims [1] A tow band of cellulose acetate, comprising a plurality of filaments assembled in multiple foams and crimped,
The total denier is set to a value in a range from 23000 to 45000 inclusive and the filament denier is set to a value in a range from 7.0 to less than 30.0 wherein the area of the cross section of the filament is S and the circumferential length of the cross section is L (S / L) of the area and the circumferential length in the case of the tobacco tip is set to a value of 5.0 or more. A molded article obtained by shaping the tow band of claim 1 or 2 into a rod shape,
And a wrapper wrapped around the periphery of the molded article. The method of claim 3,
Wherein a length dimension of the tip is set to a value in a range of 5 mm or more and 35 mm or less. The method of claim 3,
A tip for an electronic cigarette, wherein the degree of filtration of the aerosol is less than 20%.

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