Patent Application
20140123991
1. Field of the Invention
The present invention relates to a flavorant-carrying adsorbent particle, a cigarette filter, a filter-tipped cigarette, and a method for producing the flavorant-carrying adsorbent particle.
2. Description of the Related Art
Flavorant-carrying activated carbon particles are embedded in a cigarette filter, flavor from the flavorant is emitted in the mainstream smoke of a cigarette, and the smoker enjoys the flavor. For example, WO 2008/072627 discloses a flavor bead in which the surface of a particulate carrier such as activated carbon is covered with a glucan film containing a flavorant. This flavor bead is produced according to the following process. A particulate carrier is put into a fluidized-bed granulation dryer, and an aqueous glucan solution or dispersion containing a flavorant is continuously or intermittently sprayed onto the surface of the particulate carrier while blowing warm air of e.g. 80° C. or lower into the dryer, followed by drying.
However, in the method of WO 2008/072627, it takes a relatively long time when a large amount of a flavorant is subjected to the treatment. As a result, it is difficult to increase the amount of a flavorant carried.
Therefore, a main object of the present invention is to provide a flavorant-carrying adsorbent particle carrying a relatively large amount of a flavorant by a treatment in a relatively short time.
In addition, another object of the present invention is to provide a cigarette filter comprising the flavorant-carrying adsorbent particle, and a cigarette tipped with the filter.
Furthermore, still another object of the present invention is to provide a method for producing a flavorant-carrying adsorbent particle.
In order to solve the above problem, according to the first aspect of the present invention, there is provided a flavorant-carrying adsorbent particle comprising an adsorbent core particle having a BET specific surface area of 700 m2/g or greater, and a flavor-generating medium carried on the surface of the adsorbent core particle and including a flavorant and a flavorant-holding material holding the flavorant, wherein the flavorant-holding material is present in an amount of 5 to 20% with respect to a total weight of the flavorant-carrying adsorbent particle, and the flavorant is present in an amount of 10 to 50% with respect to a weight of the flavorant-holding material.
According to the second aspect of the present invention, there is provided a cigarette filter comprising a filter section including the flavorant-carrying adsorbent particle of the present invention. Further, according to the third aspect of the present invention, there is provided a filter-tipped cigarette comprising a cigarette rod and the filter of the present invention which is connected to one end of the cigarette rod.
Further, according to the fourth aspect of the present invention, there is provided a method for producing a flavorant-carrying adsorbent particle, comprising spraying a liquid flavor-emitting composition containing a flavorant and a flavorant-holding material onto an adsorbent core particle having a BET specific surface area of 700 m2/g or greater while stirring the adsorbent core particle under reduced pressure.
According to the present invention, a flavorant-carrying adsorbent particle carrying a relatively large amount of a flavorant is provided by a treatment in a relatively short time.
Hereinafter, embodiments of the present invention will be described in detail.
A flavorant-carrying adsorbent particle of the present invention comprises an adsorbent core particle and a flavor-generating medium carried on the surface of the adsorbent core particle and including a flavorant and a flavorant-holding material holding the flavorant. The flavorant-holding material is present in an amount of 5 to 20% with respect to the total weight of the flavorant-carrying adsorbent particle, and the flavorant is present in an amount of 10 to 50% with respect to the weight of the flavorant-holding material.
The adsorbent core particle used in the present invention has a BET specific surface area of 700 m2/g or greater. In the present specification, the BET specific surface area refers to a specific surface area obtained according to the publically known BET method. When the BET specific surface area is less than 700 m2/g, it is not possible to sufficiently adsorb the components in the mainstream smoke of a cigarette. In the present invention, the adsorption ability is determined by taking acetone, which is one of the representative components in the mainstream smoke of a cigarette, or the like as a standard. The adsorbent core particle preferably has a BET specific surface area of 1000 m2/g or greater. The BET specific surface area of an adsorbent core particle is generally 2000 m2/g or less.
Examples of such an adsorbent core particle include an activated carbon particle, a zeolite particle, and a silica gel particle.
It is preferable that the adsorbent core particle has an average particle size of 75 to 1000 μm, and for example, an adsorbent core particle having an average particle size of 75 to 600 μm may be suitably used.
The flavor-generating medium covering the surface of the adsorbent core particle includes a flavorant and a flavorant-holding material holding the flavorant.
Examples of the flavorant include a hydrophilic flavorant and a hydrophobic flavorant. Examples of the hydrophilic flavorant include leaf tobacco extract, natural vegetable flavorant (for example, licorice, St. John's bread, plum extract, peach extract, and the like), acids (for example, malic acid, tartaric acid, citric acid, butyric acid, and the like), saccharides (glucose, fructose, isomerized sugar, and the like). Examples of the hydrophobic flavorant include menthol, cocoas (powder, extract, and the like), esters (for example, isoamyl acetate, linalyl acetate, isoamyl propionate, linalyl butyrate, and the like), natural essential oils (as vegetable essential oils, for example, vanilla extract, spearmint, peppermint, cassia, jasmine, and the like; as animal essential oils, for example, musk, ambergris, civet, castoreum, and the like), and single flavors (for example, anethole, limonene, linalool, eugenol, vanillin, and the like).
The holding material holding the flavorant contains a film forming material and an emulsifying agent as needed. The representative examples of the film forming material used in the present invention include glucan, and examples of glucan include pullulan, maltodextrin, and hydroxypropyl cellulose. Glucan is water-soluble. A film forming material such as glucan is able to hold a flavorant by embedding the flavorant in the film formed of the film forming material. The film forming material can be used for any of a hydrophilic flavorant and a hydrophobic flavorant.
Examples of the emulsifying agent include glycerin fatty acid ester, sucrose fatty acid ester (sugar ester), sorbitan fatty acid ester, propylene glycol fatty acid ester, and lecithin. Molecules of the emulsifying agent hold a hydrophobic flavorant in an aqueous medium by causing the hydrophobic group of the molecule to adsorb around the oil droplet of the hydrophobic flavorant, and hold the hydrophobic flavorant after drying as well.
In the flavorant-carrying adsorbent particle of the present invention, the flavorant-holding material is present in an amount of 5 to 20%, and preferably 5 to 10%, with respect to the total weight of the flavorant-carrying adsorbent particle. In addition, the flavorant is present in an amount of 10 to 50% with respect to the weight of the flavorant-holding material.
The flavorant-carrying adsorbent particle of the present invention may be prepared by spraying a liquid flavor-emitting composition containing the flavorant and the flavorant-holding material onto the adsorbent core particle while stirring the adsorbent core particle under reduced pressure.
The flavorant contained in the liquid flavor-emitting composition is the same as those described above, and the flavorant-holding material is also the same as those described above.
When the liquid flavor-emitting composition contains only a hydrophilic flavorant as a flavorant, it is preferable that the liquid flavor-emitting composition contains glucan as a film forming material and a hydrophilic flavorant, and further contains water as a solvent for dissolving glucan and the hydrophilic flavorant.
When the liquid flavor-emitting composition contains a hydrophobic flavorant as a flavorant (for example, when the liquid flavor-emitting composition contains only a hydrophobic flavorant as a flavorant, or when the liquid flavor-emitting composition contains a hydrophobic flavorant as well as a hydrophilic flavorant as a flavorant), it is preferable that the liquid flavor-emitting composition contains glucan as a film forming material, water as the solvent of glucan, a hydrophobic flavorant (and a hydrophilic flavorant), an oily solvent for dissolving the hydrophobic flavorant (for example, a vegetable oil or a saturated fatty acid triglyceride, preferably a medium chain saturated fatty acid triglyceride), and an emulsifying agent. When this composition contains a hydrophilic flavorant in addition to the hydrophobic flavorant, the hydrophilic flavorant dissolves in water.
In the production of the flavorant-carrying adsorbent particle, it is preferable that the adsorbent core particle is under reduced pressure of 12.3 kPa or lower, for example, under reduced pressure of 7.4 to 12.3 kPa, during spraying the liquid flavor-emitting composition. Moreover, at that time, it is preferable that the adsorbent core particle is at a temperature of 60° C. or lower, for example, at a temperature of 40 to 60° C. By spraying the liquid flavor-emitting composition containing the flavorant and the flavorant-holding material under reduced pressure, there are benefits that a large amount of the flavorant can be carried on the adsorbent core particle and also that a flavor-emitting composition having a high viscosity (for example, a viscosity of about 2 Pa·s) can be sprayed through a spray nozzle.
In order to produce the flavorant-carrying adsorbent particle of the present invention, a conical ribbon mixer dryer may be used. The conical ribbon mixer dryer is described in, for example, Jpn. Pat. Appln. KOKAI Publication No. 2003-71263, Jpn. Pat. Appln. KOKAI Publication No. 2003-290641, and Jpn. Pat. Appln. KOKAI Publication No. 2007-229633. In addition, a conical ribbon mixer dryer manufactured by OKAWARA MFG. CO., LTD. is commercially available.
The basic structure of such a conical ribbon mixer dryer will be described with reference to
The outer boundary of the treatment tank 12 is surrounded with a jacket 22. In order to heat the content of the tank, steam is introduced through a steam inlet 22a into this jacket 22 via a line L1, and steam is discharged through a steam outlet 22b to the outside of the system via a line L2.
The upper opening of the tank is closed by a top board 24. On this top board 24, a motor 26 and a reduction gear 28 are installed, and the output shaft of the reduction gear 28 is connected to the rotating shaft 16 provided in the inside of the treatment tank 12. In addition, at the top board 24, an inlet 24a for an object to be treated (adsorbent core particles in the present invention) is provided, and at the bottom of the treatment tank 12, an outlet 12a for treated product (flavorant-carrying adsorbent particles in the present invention) is provided.
Moreover, to the top board 24, a bag filter 30 is attached. Of the content of the treatment tank 12, this bag filter traps particulate matter (adsorbent particles in the present invention) and passes volatile matter (water contained in the flavor-emitting composition in the present invention). The passed volatile matter is led to a condenser 32 via a line L3. The condenser 32 is configured by, for example, a water cooled cooler, and the volatile matter passes through the inside of an inner tube 321. The volatile matter is cooled by cooling water introduced into an outer tube 322 through a line L5, and discharged through a line L6 as a condensate (water). Water introduced into the outer tube 322 is discharged through the line L5. The inner tube 321 is connected to a pressure reducing pump P1 via a line L7, and the inside of the treatment tank 12 is decompressed by the drive of the pressure reducing pump P1.
The basic structure of the conical ribbon mixer dryer is as described above. Further, in order to prepare the flavorant-carrying adsorbent particle of the present invention, a spray nozzle 34 for introducing the liquid flavor-emitting composition into the treatment tank 12 is provided so as to penetrate through the top board 24. The spray nozzle 34 sprays the liquid flavor-emitting composition LFC into the treatment tank 12 from a container 36 containing the liquid flavor-emitting composition via a line L8 equipped with a liquid feeding pump P2. In addition, in order to measure the temperature of the adsorbent particles in the treatment tank 12, a temperature sensor (for example, thermocouple) 38 is provided at the lower part of the treatment tank 12.
In order to produce the flavorant-carrying adsorbent particles of the present invention using the conical ribbon mixer dryer 10 illustrated in
In the flavorant-carrying adsorbent particles produced in this manner, only water is removed by volatilization during production, but almost all of the components other than water contained in the liquid flavor-emitting composition applied to the adsorbent core particles during production are carried on the adsorbent core particles. Consequently, the liquid flavor-emitting composition applied to the adsorbent core particles contains the flavorant-holding material in an amount of 5 to 20%, preferably 5 to 10%, with respect to the weight of the adsorbent core particles used, and the flavorant in an amount of 10 to 50% with respect to the weight of the flavorant-holding material contained in the liquid flavor-emitting composition. The flavorant-holding material contained in the liquid flavor-emitting composition, particularly, a part of an aqueous solution or aqueous dispersion of the film forming material may be applied to the adsorbent core particles in advance. The advance application of a part of the aqueous solution or aqueous dispersion of the film forming material makes it possible to suppress the temperature of the adsorbent core particles rising at the initial stage of production of the flavorant-carrying adsorbent particle and also suppress the generation of fine powder from the adsorbents.
The flavorant-carrying adsorbent particle of the present invention can have, in the initial state, an adsorption ability of 50% or greater with respect to the intrinsic adsorption ability of the adsorbent core particle, preferably an adsorption ability of 70% or greater with respect to the intrinsic adsorption ability of the adsorbent core particle, and more preferably an adsorption ability of 90 to about 100% with respect to the intrinsic adsorption ability of the adsorbent core particle. Here, the initial state refers to a state before the flavorant-carrying adsorbent particle is contacted with the mainstream smoke of a cigarette. As described above, the intrinsic adsorption ability of the adsorbent core particle is determined by taking acetone in the mainstream smoke of a cigarette as a standard. In other words, the flavorant-carrying adsorbent particle of the present invention is able to immediately adsorb the components contained in the mainstream smoke of a cigarette when the flavorant-carrying adsorbent particle is contacted with the mainstream smoke of a cigarette. As the flavorant-carrying adsorbent particle is contacted with the mainstream smoke of a cigarette, the flavorant-holding material contained in the liquid flavor-emitting composition of the flavorant-carrying adsorbent particle is dissolved by a polar component (particularly, water) contained in the mainstream smoke of a cigarette, and the adsorption ability thereof gradually increases. As a matter of course, during storage, it is rare that the flavorant is emitted from the flavor-generating medium.
A cigarette filter according to the second aspect of the present invention comprises a filter section including the flavorant-carrying adsorbent particles of the present invention. In addition, a filter-tipped cigarette according to the third aspect of the present invention provides a filter-tipped cigarette comprising a cigarette rod and the filter of the present invention which is connected to one end of the cigarette rod.
The cigarette filter according to the present invention may comprise a filter section in which the flavorant-carrying adsorbent particles of the present invention are dispersed in a general filter raw material, for example, a cellulose acetate fiber tow (bound by a plasticizer such as triacetin). The so-called plain filter section (for example, consisting of a cellulose acetate fiber tow bound by a plasticizer such as triacetin) may be connected to one end of the above filter section. Alternatively, the cigarette filter according to the present invention may comprise two plain filter sections disposed apart from each other and the flavorant-carrying adsorbent particles of the present invention filled in the space between these two plain filter sections.
A filter 54 is attached to one end of the cigarette rod 52. The filter 54 comprises a flavorant-carrying adsorbent particles-containing filter section 541 which is provided so as to be directly connected to one end of the cigarette rod 52, and a plain filter section 542 which is provided at the end of the downstream side of the filter section 541 with respect to the flow direction of the mainstream smoke.
The flavorant-carrying adsorbent particles-containing filter section 541 is, for example, a filter obtained by wrapping a cellulose acetate fiber 541a, in which flavorant-carrying adsorbent particles FCA are dispersed, with a filter wrapping paper 541b, and may be prepared by the same method as that for the preparation of a general charcoal filter.
The plain filter section 542 is, for example, a filter obtained by wrapping a tow of a cellulose acetate fiber 542a with a filter wrapping paper 542b.
The filter 54 consisting of the filter sections 541 and 542 is attached to the cigarette rod 52 by a tipping paper 56 as in the general filter-tipped cigarette.
<Preparation of Liquid Flavor-Emitting Composition>
A mixture containing the components listed in Table 1 in the proportions listed in Table 1 was emulsified using an emulsifier (ROBOMICS MARK II manufactured by PRIMIX Corporation) at 7500 rpm for 15 minutes. At this time, the surrounding of the emulsifier was cooled with water such that the temperature of the mixture did not exceed 45° C. In this manner, liquid flavor-emitting compositions A to D were obtained.
COCONARD MT manufactured by Kao Corporation was used as a medium chain fatty acid triglyceride, LP-20E manufactured by The Nisshin OilliO Group, Ltd. was used as lecithin, and P-1570 manufactured by Mitsubishi-kagaku Foods Corporation was used as a sugar ester.
<Preparation of Flavorant-Carrying Adsorbent Particle>
Here, RIBOCONE RM-50-SR manufactured by OKAWARA MFG. CO., LTD., was used as a conical ribbon mixer dryer (see
A product of flavorant-carrying adsorbent particles was obtained according to the same procedure as in Example 1 except that liquid flavor-emitting composition B was used instead of liquid flavor-emitting composition A.
A product of flavorant-carrying adsorbent particles was obtained according to the same procedure as in Example 1 except that liquid flavor-emitting composition C was used instead of liquid flavor-emitting composition A.
A product of flavorant-carrying adsorbent particles was obtained according to the same procedure as in Example 1 except that liquid flavor-emitting composition D was used instead of liquid flavor-emitting composition A.
<Manufacture of Filter-Tipped Cigarette>
A filter-tipped cigarette having a configuration illustrated in
These four kinds of filter-tipped cigarettes according to the present invention were subjected to smoking. As a result, it was confirmed that flavor from the flavorant was emitted in the mainstream smoke, and flavor and taste were stronger compared to the control cigarette. This result indicates that a large amount of a flavorant was carried on an adsorbent core particle by a treatment in a short time according to the method of the present invention.
A flavorant-carrying adsorbent particle was prepared according to the same manner as in Example 1 except that a solution containing 5% by weight 1-menthol in ethanol was sprayed onto activated carbon. A filter-tipped cigarette was manufactured in the same manner as above using this flavorant-carrying adsorbent particle. This filter-tipped cigarette was subjected to smoking, but flavor from the flavorant was not confirmed.
The filter-tipped cigarette manufactured in Example 4 was subjected to smoking, and the adsorption ability of the filter with respect to acetone in the mainstream smoke was investigated.
In this experiment, an apparatus 70 illustrated in
In the present experiment, the cigarette manufactured in Example 4 was set to the trapping device 71, and subjected to smoking using the automatic smoking machine 76 under the standard smoking conditions defined by International Organization for Standardization (1 puff: 35 mL puff for 2 seconds, puff interval: 58 seconds). After smoking was completed, the agent solution in the impinger 72 was transferred to a serum vial, and the Cambridge filter 711, in which the particulate matter was trapped, was also put into the serum vial. It was subjected to a shaking extraction at 250 times/min for 30 minutes. 1 mL of the obtained extract was put into a vial for gas chromatograph-mass spectrometer (GC/MS), and the components in the mainstream smoke were analyzed under the following conditions.
Analytical conditions of the components in the mainstream smoke:
GC/MS: HP 7890/5975 manufactured by Hewlett-Packard development Company, D. P.
Column: DB-1701
Flow rate of column: 1.2 mL/min
Temperature raising condition: The temperature was maintained at 60° C. for 5 minutes, and then raised to 160° C. by 5° C./min and to 250° C. by 10° C./min, and then maintained at 250° C. for 30 minutes.
Ratio of injection: split 10: 1; Inlet: 220° C.; Flow rate: 12 mL/min; Total flow rate: 16.2 mL/min
MS condition: Scan parameter: 33.0 to 200.0;
Threshold: 50; MS ion source: 230° C.; MS quadrupole: 150° C.
The same analysis was also performed in a cigarette having a plain filter (that is, the cigarette having a cigarette rod of a commercially available filter-tipped cigarette product, “Winston Lights”, and a plain filter consisting of a cellulose acetate fiber tow (length: 20 mm; 2.5 Y/70000) connected to one end thereof; hereinafter, this will be referred to as a “standard cigarette”) and the above control cigarette.
From the analysis results of the filter-tipped cigarette of Example 4, the control cigarette, and the standard cigarette, the value of acetone peak area for each of the cigarettes was calculated. Each of the values of acetone peak area for the filter-tipped cigarette of Example 4 and the control cigarette was divided by the value of acetone peak area for the standard cigarette. The obtained value was multiplied by 100 to obtain the acetone decreasing rate (%) for each of the filter-tipped cigarette of Example 4 and the control cigarette. The acetone decreasing rate (%) was subtracted from 100% to obtain the acetone adsorption rate. As a result, the acetone adsorption rate with respect to the control cigarette was 48%, and the acetone adsorption rate with respect to the filter-tipped cigarette of Example 4 was 45%. This result indicates that the flavorant-carrying adsorbent particle of Example 4 has an adsorption ability corresponding to about 94% with respect to the intrinsic adsorption ability of the adsorbent core particle. That is, the adsorption ability of the filter-tipped cigarette of Example 4 was a little lower than that of the control cigarette including no flavorant-carrying activated carbon, but almost the same level.
The filter-tipped cigarettes manufactured in Examples 1 to 3 also exhibited the same level of adsorption ability as that of the filter-tipped cigarette of Example 4.
Two kinds of filter-tipped cigarettes were manufactured in the same manner as the above control cigarette except that the activated carbon was substituted with 30 mg of activated carbon having a specific surface area of 700 m2/g and 1000 m2/g, respectively. The acetone adsorption rate with respect to these cigarettes was investigated in the same manner as above. As a result, the acetone adsorption rate with respect to the former cigarette was 23%, and the acetone adsorption rate with respect to the latter cigarette was 34%. From this result, it is found that activated carbon having a specific surface area of 700 m2/g or greater exhibits an adsorption effect with respect to the components contained in the mainstream smoke of a cigarette.
<Measurement of Amounts of Flavorant Carried and Flavorant-Holding Material>
In regard to the flavorant-carrying particles obtained in Examples 1 to 4, the amount of the flavorant carried and the amount of the flavorant-holding material were measured.
The flavorant-carrying particles of Comparative Examples were prepared according to Examples 1 to 3 of the Prior Art Document (WO 2008/072627). In regard to the flavorant-carrying particles thus prepared, the amount of the flavorant carried and the amount of the flavorant-holding material were measured in the same manner as those for Examples 1 to 4.
The flavorant-carrying particles according to Comparative Examples were prepared as follows.
2% by weight of coffee oil was added to a previously prepared aqueous dispersion of pullulan containing 10% by weight of pullulan. The mixture was vigorously stirred in an emulsifier (emulsifier rotation speed of 2500 rpm), thus preparing a flavorant dispersion. On the other hand, 100 g of calcium carbonate particles having an average particle size of 250 μm were charged into a fluidized-bed granulation dryer, and immediately the flavorant dispersion was intermittently sprayed onto the particles (in repeated cycles of spraying for 1 minute then no spraying for 30 minutes), while blowing warm air of 75° C. at a flow rate of 0.6 m/sec. In this manner, total 10 g of flavorant dispersion was sprayed onto the surface of the calcium carbonate particles, followed by drying. Thereafter, the inside of the fluidized bed was immediately cooled to room temperature, thus obtaining desired flavor beads.
100 g of calcium carbonate particles having an average particle size of 250 μm were charged into a fluidized-bed granulation dryer, and an aqueous flavorant mixture solution containing 1% by weight of a tobacco flavorant, to which vanillin was added, and 9% by weight of pullulan, was continuously sprayed onto the particles, while blowing warm air of 30° C. at a flow rate of 1.0 m/sec. In this manner, total 5 g of the aqueous mixture solution was sprayed onto the surface of the calcium carbonate particles, followed by drying. Thereafter, the temperature of the warm air was immediately decreased to room temperature, and the particles were cooled at a flow rate of 0.4 m/sec, thus obtaining desired flavor beads.
1% by weight of coffee oil and 0.5% by weight of lecithin were added to a previously prepared aqueous dispersion of pullulan containing 10% by weight of pullulan. The mixture was vigorously stirred in an emulsifier (emulsifier rotation speed of 7500 rpm, 15 minutes), thus preparing a flavorant dispersion. On the other hand, 300 g of ground coffee bean particles having an average particle size of 250 μm to 1.4 mm were charged into a rotating fluidized-bed granulation dryer (SFC-MINI manufactured by FREUND Corporation), and the perforated rotating disk at the bottom and the mixer blades for preventing lumping were rotated at about 500 rpm and about 400 rpm, respectively, while blowing warm air of 75° C. at a flow rate of 0.6 m/sec, thereby forming a fluidized bed of the ground coffee bean particles. The flavorant dispersion kept at 40° C. was continuously sprayed onto the fluidized bed, thereby spraying total 90 g of flavorant dispersion on the surface of the ground coffee bean particles, followed by drying. Thereafter, the temperature of the warm air was immediately decreased to room temperature, and the particles were cooled at a flow rate of 0.4 m/sec, thus obtaining desired flavor beads.
The amount of the flavorant and the amount of the flavorant-holding material were measured as follows.
Measurement of Flavorant
The flavorant-carrying particles were subjected to a shaking extraction using a mixture of purified water and methanol. The obtained extract was subjected to a gas chromatograph-mass spectrometer (GC/MS) to measure the flavorant.
Measurement of Flavorant-Holding Material
The flavorant-carrying particles was weighed (weight A), and heated and dried for the purpose of removing water in the particles (post-drying weight B). Purified water was added to the particles after drying, and the shaking extraction was performed, thereby eluting the flavorant-holding material. The particles were further heated and dried (post-drying weight C). The difference between the weight C and weight A was regarded as the amount of the flavorant-holding material.
The measurement result is illustrated in
In addition, it was possible to prepare the flavorant-carrying particles according to the present invention by a treatment in a shorter time than the flavorant-carrying particles according to the Comparative Examples.
10: Conical ribbon mixer dryer, 12: Treatment tank, 121: Inverted conical part of treatment tank, 122: Cylindrical part of treatment tank, 12a: Outlet for treated product, 14: Double helix ribbon rotor blade, 16: Rotating shaft, 18a to 18e: Bearing bar, 20a and 20b: Vortex flow breaker, 22: Jacket, 22a: Steam inlet, 22b: Steam outlet, 24: Top board, 26: Motor, 28: Reduction gear, 24a: Inlet for object to be treated, 30: Bag filter, 32: Condenser, 321: Inner tube of condenser, 322: Outer tube of condenser, P1: Pressure reducing pump, 34: Spray nozzle, 36: Container for liquid flavor-emitting composition (LFC), P2: Liquid feeding pump, 38: Temperature sensor, 40: Container for adsorbent core particles (AP),
50 and 60: Filter-tipped Cigarette, 52: Cigarette rod, 521: Tobacco filler, 522: Cigarette paper, 54 and 62: Filter, 541: flavorant-carrying adsorbent particles-containing filter section, 542: Plain filter section, FCA: Flavorant-carrying adsorbent particles, 541a and 542a: Cellulose acetate fiber, 541b, 542b, and 66: Filter wrapping paper, 56: Tipping paper, 621: First plain filter section, 622: Second plain filter section, 64: Cavity,
70: Apparatus for trapping components contained in mainstream smoke of cigarette, 711: Cambridge filter, CIG: Cigarette, 71: Trapping device for trapping particulate matter, 71a: Tobacco mainstream smoke inflow port, 71b: Tobacco mainstream smoke outflow port, 72: Impinger, TA: Trapping agent solution for trapping gaseous components in tobacco mainstream smoke, 73: Dewar bottle, RM: Refrigerant, 74 and 75: Pipe line, 76: Automatic smoking machine, 76a: Suction port.
| Number | Date | Country | Kind |
|---|---|---|---|
| 2011-157215 | Jul 2011 | JP | national |
This application is a Continuation Application of PCT Application No. PCT/JP2012/067724, filed Jul. 11, 2012 and based upon and claiming the benefit of priority from prior Japanese Patent Application No. 2011-157215, filed Jul. 15, 2011, the entire contents of all of which are incorporated herein by reference.
| Number | Date | Country | |
|---|---|---|---|
| Parent | PCT/JP2012/067724 | Jul 2012 | US |
| Child | 14154907 | US |
