KR101888282B1 - Flavor inhalator - Google Patents

Abstract

The flavor absorption member 1 has a support portion 3 having a carbon heat source 10 and a tubular outer wall 31. The carbon heat source 10 includes a cylindrical portion 11 provided with one cavity 11A extending along the longitudinal axial direction L of the carbon heat source 10 and a cylindrical portion 11 formed of a carbon heat source 10 And an ignition end 12 provided on the ignition side and a groove 12X communicating with the cavity 11A is formed in the end face 10a of the ignition end 12 on the ignition side. The outer wall 31 has a heat conduction member 312 and at least a part of the heat conduction member 312 is adjacent to the carbon heat source 10.

Description

{FLAVOR INHALATOR}

The present invention relates to a flavor attracting population.

BACKGROUND ART [0002] Various proposals have been made for a flavor absorption population having a carbon heat source and configured to heat a flavor source by heat generated from such a carbon heat source.

For example, in Patent Document 1, in order to improve ignitability, a flavor absorption population having a carbon heat source in which a valley (groove) crossing the ignition end is formed at the ignition end (end face on the ignition side) have.

Patent Document 2 describes a flavor absorption population having a cylindrical heat source having a cylindrical shape with a through hole having a diameter of 1.5 mm to 3 mm.

Here, it is preferable that the carbon heat source used for the flavor absorption population satisfies the following conditions.

The first condition is that in a period from the start of combustion to the initial puff (smoking), the ignitability is good and a sufficient amount of heat is supplied.

The second condition is that the calorific value fluctuates little and the stable calorie is supplied at the time of puff (smoking) from the middle to the second half.

The third condition is to reliably extinguish at the end of combustion.

On the other hand, the carbon heat source described in Patent Document 1 can improve the ignitability in the period from the start of combustion to the initial puff time by the grooves formed in the ignition end, but the carbon source of the ignition source such as the lighter and the ignition end The effect is not sufficient because the contact area is increased and the heat is not efficiently transferred to the ignition end with respect to the air flow path from the start of combustion to the initial puff time.

It is assumed that the carbon heat source described in Patent Document 1 is used in a flavor absorption population configured to transmit heat generated from a carbon heat source to a flavor generating source through a surrounding member or a supporting member of the carbon heat source. Is used as a flavor suction port in which the heat generated in the puff chamber is mainly conveyed to the flavor generating source by the convection heat, there is a problem that it is difficult to supply the stable heat quantity in the puff from the middle to the late stage.

In addition, since the carbon heat source described in Patent Document 2 has a uniform cylindrical shape over the entire length, that is, the grooves are not formed in the ignition end, the ignition source such as a lighter, which is generally circulated, It is difficult to efficiently transfer heat to the stage, and it is difficult to obtain good ignitability during the period from the start of combustion to the initial stage of puffing.

As in Patent Documents 1 and 2, it has been very difficult to achieve both good ignition during initial puffing from the start of combustion and stable supply of calorific value during puffing from the middle to the late stage in conventional single-body carbon heat sources. In addition, countermeasures are also required in that combustion is extinguished at the end of combustion.

Patent Document 1: JP-A-5-103836 Patent Document 2: Japanese Patent Publication No. 2010-535530

The first feature is a flavor absorption population comprising a rod-shaped carbon heat source (10) and a support having a tubular outer wall for supporting the carbon heat source, wherein the carbon heat source has a longitudinal axis direction of the carbon heat source And a ignition end provided on the ignition side of the carbon heat source rather than the cylinder so as to be in contact with the end face of the ignition end at the ignition end, And the ignition end portion has a gap communicating with the cavity in the extending direction of the cavity provided in the cylinder portion and the groove is formed separately from the gap, In the support portion, the outer wall is provided with a heat conduction member (312), and at least a part of the heat conduction member is adjacent to the carbon heat source.

The second characteristic is that, in the first characteristic, the flavor generating source (2) containing at least one kind of volatile flavor ingredient is provided in the inside of the support portion, and at least from the carbon heat source to the flavor generating source .

According to a third aspect, in the first or second aspect, the groove is exposed on a side surface of the ignition end portion.

A fourth feature of the present invention is that, in any one of the first to third aspects, the cylindrical portion has a cylindrical shape. And the difference between the diameter of the cavity and the outer diameter of the carbon heat source is 1 mm or more.

A fifth aspect of the present invention is that, in the first to fourth aspects, the tubular portion and the ignition end portion are integrally molded.

In a sixth aspect, in the first to fifth aspects, the size of the carbon heat source in the axial direction of the carbon heat source is 10 mm to 30 mm. And the size of the carbon heat source is 4 mm to 8 mm in a direction orthogonal to the longitudinal axis direction.

A seventh feature is that, in the first to sixth aspects, the size of the cavity is in the range of 1 mm to 4 mm in a direction orthogonal to the longitudinal axis direction of the carbon heat source .

BRIEF DESCRIPTION OF THE DRAWINGS [Fig. 1] Fig. 1 is a view showing a flavor absorption population of the embodiment.
[Fig. 2] Fig. 2 is a view showing the carbon heat source of the embodiment.
[Fig. 3] Fig. 3 is a view showing the carbon heat source of the embodiment.
[Fig. 4] Fig. 4 is a view showing an example of a groove formed in the ignition end of the carbon heat source according to the embodiment.
[Fig. 5] Fig. 5 is a view showing an example of a groove formed in the ignition end of the carbon heat source according to the embodiment.
[Fig. 6] Fig. 6 is a view for explaining a method of manufacturing the carbon heat source 10 according to the embodiment.
[Fig. 7] Fig. 7 is a view for explaining the first embodiment.
[Fig. 8] Fig. 8 is a view for explaining a second embodiment.
9 is a diagram showing a carbon heat source of Modification Example 1. [Fig.
10 is a diagram showing a carbon heat source of Modification Example 1. [Fig.
[Fig. 11] Fig. 11 is a view showing the heat conduction member of the second modification example.

(One embodiment)

1 to 6, a description will be given of a flavored mouthpiece 1 according to an embodiment of the present invention.

2 (a) is a sectional view of the carbon heat source 10 of the embodiment, and Fig. 2 (b) is a cross- 2 (c) is a view of the carbon heat source 10 of the embodiment seen from the ignition end face 10a side of the intake end 10b . More specifically, Figs. 1 and 2 (a) are views of the S cross section shown in Fig. 2 (b) viewed from the T side. The S-section is a cross section passing through the groove 12B, which will be described later, passing through the center of the cavity 11A (the axis AX).

1, the flavor absorption mouthpiece 1 according to the embodiment includes a flavor generating source 2, a carbon heat source 10, a filter 4, a flavor generating source 2, a carbon heat source 10, , And a support portion (3) for supporting the filter (4).

The flavor absorption mouth 1 has a longitudinal axial direction L in the direction along the axis AX and a short axial direction D perpendicular to the longitudinal axial direction L. [ In the embodiment, for the sake of explanation, the carbon heat source 10 side of the flavor intake port 1 is defined as the ignition end side (left side in Fig. 1) in the longitudinal axial direction L, (The right side in Fig. 1) on the filter 4 side.

In the flavor absorption filter 1, when the user sucks the filter 4 on its end, the airflow is generated from the end on the carbon heat source 10 side toward the end on the filter 4 side.

The flavor generating source 2 is provided between the carbon heat source 10 and the filter 4 inside the support 3. The flavor source 2 contains at least one volatile flavor component. The flavor generating source 2 emits flavor by the heat generated by the carbon heat source 10 being transmitted by the air flow.

As the flavor source 2, for example, tobacco leaves may be used, and general sun cigarettes used for cigarettes (paper-wrapped tobacco), granular tobacco used for snuff, roll tobacco, Tobacco and other tobacco raw materials can be employed. As the flavor generating source 2, a carrier of a porous material or a non-porous material may be employed.

The roll cigarette is obtained by forming a regenerated cigarette in a sheet form into a roll shape and has a channel therein. The molded cigarette can be obtained by molding the granular tobacco.

In addition, the tobacco raw material or carrier used as the flavor generating source (2) may contain a desired perfume. For example, the flavor generating source 2 may be configured to include glycerin, a polyhydric alcohol such as propylene glycol, and nicotine released from a separately prepared nicotine source may be captured on a carrier.

1, the flavor generating source 2 is arranged so as to form a predetermined gap 32A in the longitudinal axial direction L from the carbon heat source 10 in the support portion 3, For example, the flavor generating source 2 may be disposed so as to be in contact with the carbon heat source 10.

The carbon heat source 10 and the flavor generating source 2 are disposed in the support portion 3 by disposing a void portion or a non-combustible member having air permeability between the carbon heat source 10 and the flavor generating source 2, Or may be configured not to be adjacent to each other.

The supporting portion 3 has a tubular outer wall 31 for supporting the carbon heat source 10 and a cavity 32 formed so as to extend along the longitudinal direction L by the outer wall 31. In the supporting portion 3, the outer wall 31 may be formed, for example, by bending a rectangular sheet-shaped member into a cylindrical shape and superimposing both side edges thereof to form a hollow cylindrical body.

In the embodiment, the outer wall 31 is formed by laminating a plurality of sheet-like members. Specifically, the outer wall 31 is formed by bending the sheath member 311 and the heat conduction member 312 in a cylindrical shape, which has the sheath member 311 and the heat conduction member 312.

In the embodiment, the exterior member 311 is made of cardboard for packaging. On the other hand, the exterior member 311 may be constituted by a known wrapping paper used for packaging cigarettes.

The heat conduction member 312 extends from at least the carbon heat source 10 to the flavor source 2. The length L0 of the exterior member 311 and the length of the heat conduction member 312 are the same in the longitudinal axial direction L. [ The length Ls of the heat conduction member 312 may be different from the length L0 of the exterior member 311. [ Specifically, the length Ls of the heat conduction member 312 may be shorter than the length L0 of the exterior member 311, or may be 20 mm, for example.

Further, in the embodiment, at least a part of the heat conduction member 312 is adjacent to the carbon heat source 10. Specifically, the heat conduction member 312 has, in a part thereof, a contact portion which abuts on the outer surface (outer circumferential surface) of the short-axis direction D of the carbon heat source 10. The heat conduction member 312 also abuts the outer surface (outer peripheral surface) in the short axis direction D of the flavor generating source 2 and the outer surface (outer peripheral surface) in the short axial direction D of the filter 4 .

1, the heat conducting member 312 has an end 312a on the ignition end side and an end 312b on the suction side in the longitudinal axial direction L. As shown in Fig. The end 312a of the heat conduction member 312 on the ignition end side is located on the ignition end side with respect to the intake end 10b of the carbon heat source 10. [ On the other hand, the end 312a of the heat conduction member 312 on the ignition end side is located closer to the intake side than the ignition end face 10a of the carbon heat source 10.

In other words, the length Lx between the end 312a of the heat conduction member 312 on the ignition end side and the suction end 10b of the carbon heat source 10 is 0 mm or more. The length Lx is shorter than the length Ly of the carbon heat source 10 in the axial direction L. [ The length Lx may be equal to or less than 1/2 of the length Ly and may be equal to or less than 1/4 of the length Ly. The length Lx may be the length in the longitudinal axial direction L of the contact portion contacting the carbon heat source 10 of the heat conduction member 312. [

It is preferable to apply a member having excellent non-combustibility to the heat conduction member 312. It is preferable to apply a member having excellent thermal conductivity to the heat conduction member 312. In addition, considering that the heat generated by the carbon heat source 10 is efficiently transferred to the flavor generating source 2 by the air flow, it is preferable to apply a member having high airtightness to the heat conduction member 312. Considering this viewpoint, it is preferable to apply a metal member to the heat conduction member 312, and more preferably to apply aluminum.

The filter (4) is provided at the most suction side inside the support portion (3). 1, the filter 4 is arranged so as to form a predetermined gap in the longitudinal axial direction L from the flavor generating source 2 inside the support portion 3, but the present invention is not limited thereto , For example, the filter 4 may be disposed so as to be in contact with the flavor generating source 2.

The filter 4 may comprise cellulose acetate, paper, or other suitable known filter elements. In addition, the filter 4 may contain at least one volatile flavor component.

1, at least a part of the carbon heat source 10 is exposed from the supporting portion 3, so that the visibility of the combustion state of the carbon heat source 10 can be improved. In this case, the manufacturing process of the cavity 11A can be easily performed.

2 and 3, the carbon heat source 10 has a cylindrical shape and includes a cylindrical portion 11 and an ignition end portion 12. As shown in Fig.

As shown in Fig. 2 (a), the cylindrical portion 11 is provided with a cavity 11A extending along the axial direction L of the carbon heat source 10.

2C, the cavity 11A may have a coaxial columnar shape having the same center axis as the center axis of the cylindrical portion 11 over the entire length of the carbon heat source 10 . In this case, the manufacturing process of the cavity 11A can be easily performed.

Here, in order to supply a stable amount of heat during the puff from the middle to the second half, that is, to suppress the amount of change between the calorific value at the time of natural combustion (non-smoking) and the calorific value at the puff, It is preferable that the contact area with the combustion region is reduced.

Therefore, for example, as shown in Fig. 2 (a), by making a cylindrical shape having only a single cavity 11A, it is possible to suppress the amount of variation between the calorific value at the time of natural combustion and the calorific value at the time of puff.

Here, the difference between the diameter R1 of the cavity 11A and the outer diameter R2 of the carbon heat source (the cylindrical portion 11) (the thickness of the cylindrical portion 11) is sufficient depending on the carbon mixing ratio of the carbon heat source But it may be configured to be not less than 1 mm, preferably not less than 1.5 mm, more preferably not less than 2.0 mm. With this configuration, the user can suck the flavor as many times as necessary.

The diameter R1 of the cavity 11A may be configured to be not less than 1 mm, preferably not less than 1.5 mm, and more preferably not less than 2.0 mm. With this configuration, the pressure loss occurring at the time of suction can be reduced.

Alternatively, the cavity 11A may have a shape having a different diameter along the longitudinal axial direction L, such as a conical shape. In this case, it is possible to precisely control the amount of heat supplied to the puff during the middle to late period.

As shown in Fig. 2 (a), the ignition end portion 12 is provided closer to the ignition side (ignition end face 10a) of the carbon heat source 10 than the cylindrical portion 11. The ignition end portion 12 has an air gap 12C communicating with the cavity 11A in the extending direction of the cavity 11A provided in the cylindrical portion 11. In the embodiment, the size of the gap 12C of the ignition end portion 12 in the cross section perpendicular to the axis AX is smaller than the size of the cavity 11A in the cross section orthogonal to the axis AX. The size of the gap 12C of the ignition end 12 in the cross section orthogonal to the axis AX may be the same as the size of the cavity 11A in the cross section orthogonal to the axis AX.

As shown in Fig. 2 (b) and Fig. 3, grooves 12A and grooves 12B are formed in the ignition end face 10a of the ignition end portion 12 as grooves 12X communicating with the cavity 11A, Is formed. It should be noted that the groove 12A and the groove 12B are formed separately from the gap 12C of the ignition end 12. That is, the through holes (the cavity 11A of the cylindrical portion 11 and the gap 12C of the ignition end portion 12) penetrating the entire length of the carbon heat source along the longitudinal axial direction L are formed, It should be noted that the through hole exposed to the ignition face 10a does not correspond to the groove 12A and the groove 12B when exposed to the ignition face 10a. Here, the groove 12A is a pit portion having the groove bottom 121A, and the groove 12B is a pit portion having the groove bottom 121B.

According to this configuration, since the area of the ignition section 10a (excluding the area of the portion where the groove 12A is formed) is reduced and the area of the groove wall in the groove 12X is increased, The original heat is efficiently transferred to the ignition end, and good ignitability can be obtained in the period from the start of combustion to the initial puff time.

That is, in order to obtain sufficient ignitability, the ratio of the "area of the groove wall in the groove 12X" to the "area of the ignition end face 10a (excluding the area of the portion where the groove 12X is formed)", 12X) " / " area of the ignition end face 10a (excluding the area of the portion where the groove 12X is formed) "

The ratio of the "area of the groove 12X of the groove 12X" to the "area of the ignition end face 10a (excluding the area of the portion where the groove 12X is formed)" satisfies sufficient ignitability For example, 0.5 or more, preferably 1.25 or more, and more preferably 2.5 or more, so that sufficient ignitability can be obtained.

Here, the area of the ignition section 10a (excluding the area of the portion where the groove 12X is formed) is the area of the hatched area shown in Fig. 5, and the area of the groove 12X of the groove 12X is " (The sum of the lengths of the eight sides A to H shown in Fig. 5) of the groove 12X of the ignition section 10a " x depth of the groove 12X ".

The grooves 12X may be arranged in any arbitrary arrangement as long as they are in communication with the cavity 11A.

For example, as shown in Fig. 2 (b) and Fig. 3, the groove 12X may be exposed on the side surface 12B of the ignition end portion 12. According to this configuration, the sidewall of the groove 12X can be more efficiently burnt in the period from the start of combustion to the initial puff, and the ignitability is further improved.

As shown in Fig. 2 (b), for example, the two grooves 12X may be arranged so as to be orthogonal to each other in the ignition end face 10a. In the ignition end face 10a as shown in Fig. 4 , And three grooves 12X may be arranged so as to cross at 60 deg.

By arranging the plurality of grooves 12X so as to evenly divide the ignition face 10a, it is possible to uniformly and efficiently heat the entire ignition face 10a from the start of combustion to the initial puff time, .

The grooves 12X may be arranged in a curved shape so that when the respective grooves communicate with the cavity 11A, the grooves 12X are arranged so as to intersect at positions other than the center of the cavity 11A .

Further, the groove 12X may be inclined to deepen toward the cavity 11A, for example.

A plurality of projections may be provided in the ignition face 10a by crossing the plurality of curved grooves 12X and the linear grooves 12X at various positions in the ignition face 10a . In this case, it should be noted that the ignition face 10a includes a virtual face formed at the tip of the plurality of projections and a front end face of the plurality of projections.

Further, by making the depth of the groove 12X deeper, the air flow path area at the ignition end portion becomes larger, and the ignition property can be improved.

In order to improve the ignition property, the effect of the groove 12X is lower than that of the groove 12X. However, from the viewpoint of design and the like, the groove 12X and the groove 11A are not communicated with each other. Of course it is.

Further, by performing edge processing on the ignition section 10a, it is possible to prevent the ignition section 10a from being broken.

The carbon heat source 10 (i.e., the cylindrical portion 11 and the ignition end portion 12) can be formed by a method such as extrusion, tableting, and pressure casting Or may be integrally formed.

The length L1 of the carbon heat source 10 in the axial direction L may be 8 mm to 30 mm, preferably 10 mm to 30 mm, and more preferably 10 mm to 15 mm. The carbon heat source 10 having such a configuration can be suitably employed as a heat source for a flavor-suction port.

The outer diameter R2 of the carbon heat source 10 may be set to be 4 mm to 8 mm, more preferably 5 mm to 7 mm. The carbon heat source 10 having such a configuration can be suitably employed as a heat source for a flavor-suction port.

The outer diameter of the cylindrical portion 11 and the outer diameter of the ignition end portion 12 are configured to be equal to the outer diameter R2 of the carbon heat source 10.

The length of the cylindrical portion 11 in the longitudinal axial direction L can be arbitrarily set within a range that does not hinder the function (ignitability) of the ignition end portion 12. For example, the length of the cylindrical portion 11 in the longitudinal axial direction L may be a length obtained by subtracting the depth of the groove 12X from the entire length of the carbon heat source 10 in the longitudinal axial direction L .

An example of a method for manufacturing the carbon heat source 10 according to the embodiment will be described below with reference to Fig.

As shown in Fig. 6, primary molding is performed on the carbon heat source 10 in step S101.

The carbon heat source 10 in the primary molding may have a cylindrical shape in which the cavity 11A is not provided and may have a cylindrical shape with a cavity 11A extending in the axial direction of the length.

Here, a mixture containing a plant-derived carbon material, an incombustible additive, a binder (an organic binder or an inorganic binder), water, or the like is integrally formed by a method such as extrusion, tableting or pressure casting, ) Can be obtained.

As the carbon material, it is preferable to use a material obtained by removing volatile impurities by heat treatment or the like.

Further, the carbon heat source 10 may include a carbon material in a range of 10 wt% to 99 wt%. The carbon heat source 10 preferably includes a carbon material in a range of 30 wt% to 70 wt%, and more preferably, a carbon material in a range of 40 wt% to 50 wt%, in terms of combustion characteristics such as sufficient heat quantity supply and management of the ash. It is more preferable to include a carbon material.

As the organic binder, for example, a mixture containing at least one of CMC (carboxymethyl cellulose), CMC-Na (carboxymethyl cellulose sodium), arginate, EVA, PVA, PVAC and saccharides can be used.

As the inorganic binder, for example, a mineral base such as purified bentonite, or a silica base binder such as colloidal silica, an aqueous solution of sodium silicate, and calcium silicate can be used.

For example, from a flavor point of view, it is preferred that the binder comprises from 1% to 10% by weight of CMC or CMC-Na, more preferably from 1% to 8% by weight of CMC or CMC-Na desirable.

As the nonflammable additive, for example, a carbon salt or oxide composed of sodium, potassium, calcium, magnesium, silicon and the like can be used. In addition, the carbon heat source 10 may include 40 wt% to 89 wt% non-flammable additives.

Here, it is preferable that calcium carbonate is used as the incombustible additive, and the carbon heat source 10 includes the incombustible additive of 40 wt% to 55 wt%.

The carbon heat source 10 may contain an alkali metal salt such as sodium chloride in a proportion of 1% by weight or less for the purpose of improving combustion characteristics.

In step S102, processing for forming the cylindrical portion 11 is performed. For example, a cylindrical portion 11 having a cavity 11A is formed by making a hole from a one end face (puff side end face) of the primary molded carbon heat source 10 to a predetermined position with a drill.

In step S103, processing for forming the ignition end portion 12 is performed. For example, in step S102, a groove 12X is formed in the diamond cutting disk by a predetermined machining process on the surface (ignition end) opposite to the surface (puff side end face) where the drill is inserted.

By appropriately adjusting the number, depth, width, and the like of the grooves 12X in accordance with the composition (carbon blend ratio) of the carbon heat source 10 and the outer diameter R2, good ignitability can be obtained.

The order of steps S102 and S103 may be reversed. In the case where the cavity 11A is formed in the primary molding, step S102 may be omitted.

(Action and effect)

According to the flavor absorption port 1 and the carbon heat source 10 of the embodiment, the groove 12X is formed in the ignition end face 10a and the groove 12X is formed in the cylindrical portion 11 in the longitudinal axial direction of the carbon heat source 10 It is possible to satisfactorily satisfy both the good ignition property in the ignition end face 10a and the stable heat amount supply in the cylindrical portion 11 by forming the cavity 11A extending along the line L. [

The outer wall 31 of the support portion 3 includes the sheathing member 311 and the heat conduction member 312. In this case, Also, at least a portion of the heat conducting member 312 is adjacent to the carbon heat source 10. Specifically, a part of the heat conduction member 312 is in contact with the outer surface (outer circumferential surface) of the short-axis direction D of the carbon heat source 10.

When the carbon heat source 10 is burned and reaches the contact portion of the heat conduction member 312, heat generated from the carbon heat source 10 flows into the heat conduction member 312, . As a result, the temperature of the carbon heat source 10 is lowered and the combustion is suppressed. That is, according to the flavor absorption unit 1, it becomes possible to reliably extinguish the combustion of the carbon heat source 10 at the end of combustion (at the time of smoking end). In addition, according to the flavor absorption member 1, the combustion in the support portion 3 is reliably prevented, whereby it is possible to reliably extinguish at the time of completion of combustion.

Further, the heat conduction member 312 extends from the carbon heat source 10 to the flavor generating source 2 at least. Specifically, the heat conduction member 312 is formed so that the outer surface (outer circumferential surface) in the short axial direction D of the carbon heat source 10, the outer surface (outer circumferential surface) in the short axial direction D of the flavor generating source 2, Contact.

When the combustion of the carbon heat source 10 reaches the abutting portion of the heat conduction member 312, the heat generated from the carbon heat source 10 flows through the heat conduction member 312, (2), the amount of heat supplied to the flavor generating source (2) increases. Thus, the generation of flavor components from the flavor generating source 2 is promoted, and more flavor components can be efficiently supplied to the user.

It is preferable that the heat conduction member 312 is made of, for example, aluminum as a member having airtightness. In this case, heat generated by the carbon heat source 10 can be efficiently transmitted to the flavor generating source 2 by air flow.

(Example 1)

With reference to Fig. 7, a test conducted to evaluate the relationship between the shape of the groove 12X in the ignition end face 10a and the ignition property will be described. Fig. 7 is a view of the S cross section shown in Fig. 2 (b) as seen from the T side as in Fig.

In this test, a plurality of test samples A-1 to E-3 were produced as follows. The width, depth, and number of the grooves 12X of the test samples A-1 to E-3 are shown in Table 1.

First, 100 g of activated carbon, 90 g of calcium carbonate and 10 g of CMC (with a degree of etherification of 0.6) were mixed, and then 270 g of water containing 1 g of sodium chloride was poured and further mixed.

Secondly, after mixing the mixture, extrusion molding was performed so as to have a cylindrical shape with an outer diameter of 6 mm and an inner diameter of 0.7 mm.

Third, the molded product obtained by such extrusion molding was dried and then cut into a length of 13 mm to obtain a primary molded product (carbon heat source 10 in primary molding).

Fourthly, a hole was drilled to a predetermined position with a drill having a diameter of 2 mm from one end face (puff side end face) of the primary molded body to form a cylindrical portion 11 having a cavity 11A.

Fifthly, in step S102, the groove 12X is formed by performing a predetermined machining with a diamond cutting disk on the surface of the drill-inserted side (plow side end face) and on the side opposite to the face side.

Then, for each of the test samples A-1 to E-3 (carbon heat source 10), a test for evaluation of ignitability was carried out in the following manner.

First, as shown in Fig. 7, the cylindrical portion 11 of each of the test samples A-1 to E-3 (the carbon heat source 10) is connected to the supporting portion 3 formed in a tubular shape.

Second, each test sample (carbon heat source 10) is brought into contact with the flame of the gas lighter 500 using a commercially available gas lighter 500, heated for 3 seconds, and then puffed at 55 ml / 2 seconds. Here, such puffs were repeated at intervals of 15 seconds.

The results of the ignition evaluations of the test samples A-1 to E-3 are shown in Table 1.

[Table 1]

Here, as the evaluation of the ignition property, "the combustion state of the ignition end of each test sample after the first puff (whether or not the entire ignition end is burned)" and "whether or not the combustion after the second puff is continued ). According to the result of this evaluation test, when the number of the grooves 12X is " 2 ", the depth of the grooves 12X is set to 2 mm or more so that the gas lighter 500, .

Further, even when the depth of the groove 12X is " 1 mm ", it has been recognized that the ignitability tends to be improved by setting the number of grooves 12X to " 3 or more ".

According to the result of the evaluation test, the area ratio of the groove wall with respect to the ignition end [the area of the groove 12X (the area of the portion where the groove 12X is formed) &Quot; of the present invention] is larger, the ignitability is improved.

The groove depth is a distance from the ignition end face 10a to the bottom of the groove 12X in the longitudinal axial direction L. [ The groove width is the side of the groove 12X in the direction perpendicular to the extending direction of the groove 12X in the ignition end face 10a.

(Example 2)

The second embodiment will be described below. In Example 2, a plurality of samples (samples L-1 to M-2) shown in Fig. 8 were made to confirm the temperature difference between puffs and the number of continuous puffs of combustion.

Each sample is a carbon heat source composed of activated carbon, calcium carbonate and CMC. When the total weight of the sample is 100% by weight, the sample is composed of 80% by weight of activated carbon, 15% by weight of calcium carbonate and 5% by weight of CMC. The total length of each sample in the longitudinal axial direction L is 15 mm. The number of cavities, the size of the cavities and the number of cavities of each sample are as shown in Fig.

Such a sample was inserted into a paper tube, and a commercially available gas lighter flame was contacted with the ignition end for 3 seconds, followed by puffing at 55 ml / 2 seconds.

As shown in Fig. 8, in the samples L-1 to L-3 having a single cavity as compared with the samples M-1 to M-2 having a plurality of cavities, both sides of the temperature difference between puffs and the number Good results were obtained.

That is, as compared with the case where a plurality of cavities are provided, it was confirmed that the difference in temperature between the puffs was reduced because the "molded body cross-sectional area / circumferential length" was large when a single cavity was provided. Further, as compared with the case where a plurality of cavities are provided, it has been confirmed that the number of puffs increases because the " molded body cross-sectional area / circumferential length " is large when a single cavity is provided.

(Modification Example 1)

Modification Example 1 of the above embodiment will be described below. Hereinafter, differences between the above embodiments will be described.

Figs. 9 and 10 are views showing the carbon heat source 10 of Modification Example 1. Fig. 9 is a view showing the carbon heat source 10 viewed from the side of the ignition side (hereinafter referred to as the ignition end face 10a). 10 is a view of the S cross section shown in Fig. 9 viewed from the T side. The S-section is a cross section passing through the center of the cavity 11A and passing through the groove 12B. It should be noted that, in FIG. 10, for convenience of explanation, the corner lines shown at the front are indicated by dotted lines.

As shown in Fig. 9, a cross-shaped groove 12X passing through the center of the cavity 11A is formed in the ignition end face 10a of the carbon heat source 10.

In Modification Example 1, the ignition end portion 12 has a gap communicating with the cavity 11A in the extending direction of the cavity 11A provided in the cylindrical portion 11. [ In Modification Example 1, the size of the gap of the ignition end portion 12 in the cross section orthogonal to the axis AX is the same as the size of the cavity 11A in the cross section orthogonal to the axis AX. It should be noted that the cross-shaped groove 12X is formed separately from the gap of the ignition end portion 12.

As already mentioned in the above embodiment, the ignition end face 10a may be corners. For example, as shown in Figs. 9 and 10, the radially outer end U1 of the ignition end face 10a is subjected to edge processing. In the ignition end face 10a, the inner edge U2 in the radial direction was subjected to edge processing. The outer edge (U3) in the radial direction of the non-ignition end provided on the opposite side of the ignition end face (10a) was subjected to edge processing. That is, the outer end U1, the inner end U2, and the outer end UE have a slope with respect to a vertical plane with respect to the longitudinal axial direction L. [ By this edge processing, cracking of the carbon heat source 10 is suppressed.

Here, the diameter? Of the cavity 11A is, for example, 2.5 mm. The groove width of each groove 12X is smaller than the diameter? Of the cavity 11A and is, for example, 1 mm. The total length of the carbon heat source 10 in the longitudinal axial direction L is, for example, 17 mm. The length of the ignition end portion 12 in the longitudinal axial direction L is, for example, 2 mm. In the longitudinal axial direction L, the length of the edge portion of the ignition end 12 is 0.5 mm, for example. That is, the length of a portion of the ignition end portion 12 where cornering is not performed in the longitudinal axial direction L is 1.5 mm.

It should be noted that, in the modified example 1, the carbon heat source 10 (the cylindrical portion 11 and the ignition end portion 12) is integrally molded. For example, a lump, which is made of a carbon material and has a cavity extending in the longitudinal axis direction, is formed by a method such as extrusion, tableting, compression casting, etc., .

(Variation Example 2)

Modification 2 of the above embodiment will be described below. Hereinafter, differences between the above embodiments will be described. Fig. 11 is a view showing a flavor absorption mouthpiece 1 according to a second modification. Fig. Fig. 11 is a view of the S cross section shown in Fig. 2 (b) as seen from the T side as in Fig.

In the flavor absorption mouthpiece 1 of Modified Example 2, the configuration of the heat conduction member is different from that of the above embodiment. Specifically, the flavor absorption mouthpiece 1 of Modified Example 2 has a heat conduction member 313 instead of the heat conduction member 312 of the above-described embodiment. The heat conduction member 313 of Modification Example 2 extends from the carbon heat source 10 to the flavor generating source 2 in the longitudinal axial direction L. [ More specifically, the suction side end portion 313b of the heat conduction member 313 is located on the outer peripheral surface of the flavor generating source 2 in the longitudinal axial direction L, and the suction side end portion 313b of the heat conduction member 313 Is located on the outer peripheral surface of the flavor generating source 2 in the longitudinal axial direction (L).

The position of the ignition end side end portion 313a of the heat conducting member 313 in the longitudinal axial direction L is the same as that in the above embodiment (see Fig. 1).

With such a configuration, the length of the heat conduction member 313 in the axial direction L can be shortened, so that the material cost can be reduced.

11, the position of the ignition end side end portion 313a of the heat conductive member 313 in the longitudinal axial direction L is the same as the position of the ignition end side end portion of the exterior member 311 as an example But is not limited thereto. For example, the position of the ignition end side end 313a of the heat conduction member 313 may be provided closer to the suction side than the ignition end side end of the sheathing member 311. [

11, the position of the suction side end portion 313b of the heat conduction member 313 is the same as the position of the suction side end portion 2b of the flavor generating source 2 in the longitudinal axial direction L However, the present invention is not limited thereto. The position of the suction side end portion 313b of the heat conduction member 313 may be anywhere between the ignition end side end portion 2a of the flavor generating source 2 and the suction side end portion 2b.

Although the present invention has been described in detail with reference to the above embodiments, it is obvious to those skilled in the art that the present invention is not limited to the embodiments described in this specification. The present invention can be carried out without departing from the spirit and scope of the present invention, which is defined by the description of the claims. Accordingly, the description herein is for the purpose of illustration and is not intended to limit the invention in any way.

For example, in the embodiment, the carbon heat source 10 has a cylindrical shape, but the embodiment is not limited thereto. The carbon heat source 10 may have a prismatic shape. In the embodiment, the cavity 11A has a circular shape in a cross section orthogonal to the longitudinal axial direction L, but the embodiment is not limited thereto. In the cross section perpendicular to the longitudinal axial direction L, the cavity 11A may have a rectangular shape or an elliptical shape. In this case, the diameter R1 of the cavity 11A and the outer diameter R2 of the carbon heat source 10 may be changed to a size orthogonal to the longitudinal axial direction L. FIG. In such a case, the size in the direction orthogonal to the longitudinal axial direction L is the maximum length of the straight line passing through the center of the carbon heat source 10 (cavity 11A) in the cross section perpendicular to the longitudinal axial direction L And may be a minimum length or an average length.

Although the flavor generating source 2 and the filter 4 are separately provided in the above embodiment, the flavor generating source 2 and the filter 4 may be integrated into a flavor generating source (aerosol generating source) do.

In the above embodiment, the outer wall 31 of the support portion 3 has been described by taking the case of a two-layer structure of the exterior member 311 and the heat conduction member 312 as an example. However, the present invention is not limited to this, and the structure may be three or more layers. In the above embodiment, a part of the heat conduction member 312 is configured to abut the outer surface (outer circumferential surface) in the short axis direction D of the carbon heat source 10, but the present invention is not limited thereto. For example, the outer wall 31 has another sheet-like member between the carbon heat source 10 and the heat conduction member 312, and the other sheet-like member is provided on the outer surface (outer peripheral surface) of the carbon heat source 10, As shown in FIG. That is, if the heat conduction member 312 is adjacent to the outer surface (outer peripheral surface) of the carbon heat source 10, various configurations can be applied.

It is also possible to combine the embodiment and the modification.

Thus, it goes without saying that the present invention includes various embodiments not described herein. Therefore, the technical scope of the present invention is determined only by the inventive particulars of the relevant patent claims from the above description.

In addition, the entire contents of Japanese Patent Application No. 2013-204167 (filed on September 30, 2013) are incorporated herein by reference.

As described above, according to the present invention, it is possible to realize good ignitability in the period from the start of combustion to the initial puff, and to realize stable supply of heat at the time of puff from mid to late, And can provide a carbon source and a flavor absorption population that can be digested.

Claims (7)

A flavor absorption population comprising a rod-shaped carbon heat source and a support having a tubular outer wall for supporting the carbon heat source,
The carbon heat source may include,
A cylindrical portion having one cavity extending along the axial direction of the carbon heat source;
And a ignition end portion provided on the ignition side of the carbon heat source rather than the cylinder portion,
A groove communicating with the cavity is formed in an end face of the ignition side at the ignition end,
The ignition end portion has a gap communicating with the cavity in the extending direction of the cavity provided in the cylindrical portion,
Wherein the groove is formed separately from the gap,
In the support portion, the outer wall has a heat conduction member,
Wherein at least a part of the heat conduction member is adjacent to the carbon heat source. The method according to claim 1,
A flavor generating source including at least one kind of volatile flavor ingredient is provided inside the support,
Wherein the heat conduction member extends from at least the carbon heat source to the flavor generating source. 3. The method according to claim 1 or 2,
Wherein the groove is exposed on a side surface of the ignition end portion. 3. The method according to claim 1 or 2,
The barrel has a cylindrical shape,
Wherein the difference between the diameter of the cavity and the outer diameter of the carbon heat source is 1 mm or more. 3. The method according to claim 1 or 2,
Characterized in that the cylinder portion and the ignition end portion are integrally molded. 3. The method according to claim 1 or 2,
In the longitudinal axis direction of the carbon heat source, the size of the carbon heat source is 10 mm to 30 mm,
And the size of the carbon heat source is 4 mm to 8 mm in a direction orthogonal to the longitudinal axis direction. 3. The method according to claim 1 or 2,
Wherein a size of the cavity is in a range of 1 mm to 4 mm in a direction orthogonal to a longitudinal axis direction of the carbon heat source.

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