JP2015057412A - Smoking agent composition for indirect heating and direct heating type smoking device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a smoking agent composition and a smoking device having suppressed odor such as burnt smell generated during smoking by IPMP and/or a combination of IPBC and ADCA.SOLUTION: There is provided a smoking agent composition for indirect heating containing (A) isopropyl methylphenol of 1 to 30 mass%, (B) azodicarbonamide of 50 to 80 mass%, (C) a perfume component of 0.1 to 10 mass% and (D) at least one kind of solvent selected from a group consisting of dipropylene glycol, benzyl benzoate, isopropyl myristate, triethyl citrate and diethyl phthalate, and having a mass ratio of the (C) to the (D) (C/D) of 0.3 to 5.

Description

  The present invention relates to a smoke composition for indirect heating and a smoke apparatus of an indirect heating system.

Smoke composition composed mainly of exothermic base (combustion agent, foaming agent, etc.) and active ingredient (pesticide control agent, etc.) combusts or decomposes the exothermic base during use. It is an excellent preparation capable of controlling and controlling pests by spraying and diffusing active ingredients in the air in a short time by the action of gas and smoke particles.
Conventionally, the smoke agent composition has been mainly intended for controlling insects such as cockroaches, but recently, it has also been proposed for microorganisms such as mold. For example, Patent Document 1 discloses a smoke composition using isopropylmethylphenol (IPMP) and 3-iodo-2-propynylbutylcarbamate (IPBC) as active ingredients and azodicarbonamide (ADCA) as an exothermic base. Proposed.

JP 2008-127299 A

According to the smoke agent composition containing IPMP or IPBC as an active ingredient, a control effect (fungicidal effect, fungicidal effect, etc.) can be expected even for microorganisms that propagate in places that are out of reach. Moreover, an active ingredient can be volatilized with high volatility by using ADCA as an exothermic base.
However, according to the study by the present inventors, the smoke composition comprising a combination of IPMP and / or IPBC and ADCA generates an unpleasant odor, for example, a burnt odor (burnt odor) during the smoke treatment. However, the odor remains after the smoke treatment.

  The present invention has been made in view of the above circumstances, and a soot agent composition and a smoke device in which odors such as a burning odor generated by smoke in combination with IPMP and / or IPBC and ADCA are suppressed. The purpose is to provide.

As a result of intensive studies, the inventors of the present invention include a fragrance and a high boiling point solvent in a specific mass ratio in a smoke composition containing IPMP and IPBC as active ingredients and ADCA as an exothermic base. Has found that the above-mentioned problems can be solved.
The present invention is based on the above findings and has the following aspects.

[1] (A) 1-30% by mass of isopropylmethylphenol, (B) 50-80% by mass of azodicarbonamide, (C) 0.1-10% by mass of perfume component, (D) dipropylene glycol, And at least one solvent selected from the group consisting of benzyl benzoate, isopropyl myristate, triethyl citrate and diethyl phthalate,
A smoke ratio composition for indirect heating, wherein a mass ratio (C / D) of (C) to (D) is 0.3 to 5.
[2] The (C) is at least one selected from the group consisting of γ-undecalactone, γ-decalactone, iso-e super, acetyl cedrene, ambroxane, damascone, hexylcinnamic aldehyde, and coumarin. The smoke composition for indirect heating according to [1], comprising a fragrance component (C1).
[3] The smoke composition for indirect heating according to [2], wherein the content of the fragrance component (C1) is 10% by mass or more based on the total mass of the (C).
[4] The indirect heating smoke agent composition according to any one of [1] to [3] is accommodated, and indirectly provided with heating means for indirectly heating the indirect heating smoke agent composition. Heating smoke generator.

  According to the present invention, it is possible to provide a smoke composition and a smoke device in which odors such as burnt odor generated during smoke are suppressed by a combination of IPMP and / or IPBC and ADCA.

It is a schematic sectional drawing which shows one example of embodiment of the soot device concerning this invention.

≪Smoke agent composition≫
The smoke agent composition of the present invention contains components (A) to (D).

<(A) component>
(A) A component is an active ingredient of a smoke composition, and has microbial control effects, such as antibacterial and sterilization.
Component (A) contained in the smoke composition may be either or both of IPMP and IPBC. In the present invention, IPMP is selected. It is preferable that both IPMP and IPBC are contained in the point which is excellent in the control effect of microorganisms.
In the smoke agent composition, the content of the component (A) is preferably 1 to 30% by mass, more preferably 5 to 30% by mass, and 10 to 20% by mass with respect to the total mass of the smoke agent composition. Further preferred. When the content of the component (A) is 1% by mass or more, the effect of controlling microorganisms such as mold is good. Even if the content of the component (A) exceeds 30% by mass, the control effect is saturated and the cost is increased, and the content of the components (C) and (D) is relatively reduced, so that the burning odor when smoked There is a risk that the generation of odors such as these cannot be sufficiently suppressed. Moreover, there exists a possibility that the volatilization rate of (A) component may fall because content of (B) component becomes relatively small.

<(B) component>
The component (B) is a component that functions as an exothermic base, and produces an effect of being decomposed by heating to generate a large amount of heat and generating gas, and ejecting and diffusing the component (A).
In the smoke agent composition, the content of the component (B) is preferably 50 to 80% by mass and more preferably 60 to 80% by mass with respect to the total mass of the smoke agent composition. When the content of the component (B) is 50% by mass or more, the component (A) is efficiently volatilized and the volatilization rate is improved. If the content of the component (B) exceeds 80% by mass, the amount of powder scattered by the residue after the reaction increases, and the room may be easily contaminated.

<(C) component>
The component (C) has an effect of increasing the odor of the smoke agent composition itself and the scent of smoke, the effect of masking the odor (smoke odor) generated during smoke.
The “perfume ingredient” is a compound that can function as a perfume alone.
The component (C) is not particularly limited, and various documents such as “Perfume and Flavor Chemicals”, Vol. Iand II, Steffen Arctander, Allured Pub. Co. (1994) and "Synthetic fragrance chemistry and commercial knowledge", Motoichi Into, Chemical Industry Daily (1996) and "Perfume and Flavor Materials of Natural Origin", Stephen Arctander, Allred Pub. Co. (1994) and "Encyclopedia of Scents", edited by Japan Fragrance Association, Asakura Shoten (1989) and "Performer Material Performance V.3.3", Boelens Aroma Chemical Information Service (1996) and "Flower Oils". , Danute Lajaujis Anonis, Allured Pub. Co. (1993) and the like, which can be appropriately selected from known perfume ingredients.
The component (C) contained in the smoke agent composition may be one type or two or more types. (C) As a component, the fragrance | flavor composition which consists of 2 or more types of fragrance | flavor components normally is used.

The component (C) is excellent in masking effect on smoke odor, especially the burnt odor generated from the component (A), etc., and residual fragrance after the smoke treatment. Therefore, γ-undecalactone and γ-decalactone are used. It is preferable to contain at least one fragrance component (C1) selected from the group consisting of: ISO E super, acetyl cedrene, ambroxane, damascon, hexylcinnamic aldehyde, and coumarin.
Among the above, the fragrance component (C1) is more preferably at least one selected from the group consisting of γ-undecalactone, γ-decalactone, iso-e super, acetyl cedrene, and ambroxan.
In the component (C), the content of the fragrance component (C1) is preferably 10% by mass or more, more preferably 20 to 65% by mass, and still more preferably 30 to 60% by mass with respect to the total mass of the component (C). . When the content of the fragrance component (C1) in the component (C) is 10% by mass or more, the blending effect of the fragrance component (C1) is sufficiently obtained.

  In the smoke composition, the content of the component (C) is particularly limited as long as C / D (mass ratio of the component (C) to the component (D)) described later is within a range of 0.3 to 5. Although not carried out, 0.1 to 10% by mass is preferable based on the total mass of the smoke composition. When the content of the component (C) is 0.1% by mass or more, the scent during and after smoking and the scent of the smoke agent composition itself are good. When the content of the component (C) is 10% by mass or less, the component (A) is volatilized efficiently, and the volatilization rate is improved.

<(D) component>
The component (D), together with the component (C), has an effect of suppressing the smoke odor such as a burning odor (hereinafter, also simply referred to as “a smoke odor suppression effect”).
The boiling point of (D) component is 180 degreeC or more, 180-300 degreeC is preferable and 200-280 degreeC is more preferable. When the boiling point of the component (D) is 180 ° C. or higher, the smoke odor suppression effect is obtained. The volatilization rate of (A) component is favorable in the boiling point of (D) component being 300 degrees C or less.

As the component (D), various solvents satisfying the boiling point can be used. For example, dipropylene glycol (boiling point: about 230 ° C.), benzyl benzoate (boiling point: about 324 ° C.), isopropyl myristate (boiling point: about 193 ° C.) , Triethyl citrate (boiling point about 294 ° C.), diethyl phthalate (boiling point about 298 ° C.), diethylene glycol monomethyl ether (boiling point about 194 ° C.), diethylene glycol monobutyl ether (boiling point about 230 ° C.), dipropylene glycol monomethyl ether (boiling point about 188 ° C.) ° C), dipropylene glycol methyl ether acetate (boiling point about 209 ° C), diethylene glycol monobutyl ether acetate (boiling point about 245 ° C), diethylene glycol monoethyl ether acetate (boiling point about 218 ° C), and the like. In the present invention, at least one solvent selected from the group consisting of dipropylene glycol, benzyl benzoate, isopropyl myristate, triethyl citrate and diethyl phthalate is selected. Among these, dipropylene glycol is preferable because it is excellent in suppressing smoke odor.
1 type or 2 types or more may be sufficient as (D) component contained in a smoke composition.

  In the smoke composition, the content of the component (D) is particularly limited as long as C / D (mass ratio of the component (C) to the component (D)) described later is within a range of 0.3 to 5. Although not done, 1-5 mass% is preferable with respect to the gross mass of a smoke agent composition. When the content of the component (D) is 1% by mass or more, smoke odor suppression is good. When the content of the component (D) is 5% by mass or less, the component (A) is volatilized efficiently, and the volatilization rate is improved.

In the smoke composition, the mass ratio (C / D) of the component (C) to the component (D) is 0.3 to 5, preferably 1 to 4, and more preferably 2 to 3.
By containing the component (D) at a specific mass ratio (C / D = 0.3 to 5) together with the component (C), the smoke odor, particularly the burnt odor generated from the component (A), etc. Excellent in suppressing generation. The reason can be considered as follows.
The component (B), which is blended for the purpose of spraying and diffusing the component (A), starts to decompose at around 180 ° C. The component (C) enhances the scent at the time of smoke and masks the burnt odor generated from the component (A) at the time of smoke so as to exert the effect of suppressing the burnt odor. Most of the component (D) remains in the smoke composition at the temperature at which the decomposition of the component (B) starts, and volatilizes as the temperature rises further. It is considered that it functions as a combustion control agent that absorbs methane and suppresses overheating. By suppressing overheating, it is considered that the scent of the component (C) is suppressed during smoke, the effect of the component (C) is sufficiently exhibited, and the burning odor can be suppressed.
On the other hand, if the boiling point is less than 180 ° C. even if a solvent is blended, the solvent is already volatilized and hardly remains at the time when the component (A) and the component (C) are ejected and diffused. Therefore, there is a possibility that the burnt odor cannot be sufficiently suppressed. (D) Even if it mix | blends a component, when there are few compounding quantities (C / D is more than 5), the blending effect of (D) component may not fully be exhibited, and there exists a possibility that the burning odor at the time of a smoke cannot be suppressed. . Moreover, even if it mix | blends (D) component, when there are many compounding quantities (C / D is less than 0.3), the compounding effect of (C) component will not fully be demonstrated, but at the time of smoking or after smoking Aroma may be insufficient.

<Optional component>
The smoke agent composition of this invention may further contain other components other than (A)-(D) component in the range which does not impair the effect of this invention as needed.
Examples of the other components include additives other than the component (D), such as solvents, stabilizers, binders, excipients, and pigments. Among these, it is preferable to contain at least one selected from the group consisting of a stabilizer, a binder and an excipient.
The solvent other than the component (D) is a solvent having a boiling point of less than 180 ° C., and examples thereof include ethanol, isopropyl alcohol, ethylene glycol monoethyl ether, and diethylene glycol dimethyl ether.
Examples of the stabilizer include dibutylhydroxytoluene, butylhydroxyanisole, propyl gallate, epoxy compounds (epoxidized soybean oil, epoxidized linseed oil, etc.) and the like.
Examples of the binder include methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, starch, dextrin, hydroxypropyl starch, gelatin, polyvinyl alcohol, polyvinyl acetate, polyvinyl pyrrolidone, sodium polyacrylate, and the like.
Examples of the excipient include clay (hydrous aluminum silicate), talc, diatomaceous earth, kaolin, bentonite, and white carbon.

<Manufacturing method>
The smoke composition of the present invention is prepared as a solid preparation such as powder, granule, tablet and the like.
As a method for producing the smoke composition, a known production method is used according to the intended dosage form. For example, when a granular preparation is used, a known granulated product production method such as an extrusion granulation method, a compression granulation method, a stirring granulation method, a tumbling granulation method, or a fluidized bed granulation method is used.
During the production of the smoke composition, the component (C) may be blended with other components in the state of the component (C) alone, or the other component in the state of the mixture of the component (C) and the fragrance solvent. And may be blended. In this case, as the perfume solvent, the component (D) may be used, a solvent other than the component (D) may be used, or they may be used in combination.

As a specific example of the production method by the extrusion granulation method, each component of the smoke composition is mixed by a kneader or the like, mixed with an appropriate amount of water as necessary, and the resulting mixture has an arbitrary pore size. A method of granulating with a pre-extrusion or horizontal extrusion granulator using a die having The granulated product may be further cut into an arbitrary size with a cutter or the like and dried for removing water.
Examples of the drying method include a heat drying method using a conventionally known dryer.
Although a drying temperature is not specifically limited, 50-80 degreeC is preferable from the point which suppresses volatilization of (D) component.
The drying time is appropriately determined according to the drying temperature.
The moisture content of the smoke composition after drying is not particularly limited, but is preferably 5% by mass or less, more preferably 2% by mass or less, and may be 0% by mass. When the water content is 5% by mass or less, the volatilization rate of the component (A) is good.

<How to use>
The smoke agent composition of the present invention is used for smoke treatment to a target space.
As a method of using the smoke composition of the present invention (a smoke method), a conventionally known smoke method can be applied. For example, a method of storing the smoke agent composition in an arbitrary container such as a metal container or a ceramic container, and heating the smoke agent composition directly or indirectly in a sealed target space may be mentioned. . Thereby, the smoke treatment is performed on the target space. Moreover, it is set as the smoke device mentioned later, and you may give a smoke process to object space.
The target space is not particularly limited, and examples include a bathroom, a living room, a closet, and a toilet.

As a method for heating the smoke agent composition, a method of heating indirectly is preferable. By indirectly heating the soot agent composition, indoor pollution due to burning residue etc. of the soot agent composition can be reduced.
As a method of indirectly heating the smoke agent composition, it is possible to supply the smoke agent composition with heat energy that can cause component (B) to undergo thermal decomposition without burning the smoke agent composition. For example, a method in which the smoke agent composition is housed in a metal container and the smoke agent composition is heated through the metal container can be used.
As a heating method, a conventional method can be used, for example, a method of contacting a substance that generates heat upon contact with water and using the reaction heat; iron powder and an oxidizing agent (such as ammonium chlorate) Or a method in which a metal and a metal oxide or oxidant having a smaller ionization tendency than the metal are mixed and the heat of oxidation reaction is used. Examples of substances that generate heat upon contact with water include calcium oxide, magnesium chloride, aluminum chloride, calcium chloride, and iron chloride. Among these, from the viewpoint of practicality, a method of bringing a substance that generates heat upon contact with water into contact with water and utilizing the reaction heat thereof is preferred, and a method of utilizing the reaction heat between calcium oxide and water is more preferred. In the present invention, an operation of starting the heating method (for example, an operation of bringing water into contact with water and a substance that generates heat and contacting water) is referred to as a heating operation.

The amount of the fumigant composition may be appropriately set according to the volume of the object space, for example, preferably the target space 1 m ³ per 0.1～2.4G, 0.4 to 2.0 g and more preferably .
The soot treatment time (the time until the sealing of the target space is released after the start of soot) is not particularly limited, but is preferably 1 hour or more, and more preferably 1.5 hours or more.

≪Smoke device≫
The soot device of the present invention contains the above-described soot agent composition of the present invention, and includes heating means for heating the contained smoke agent composition.

Below, with reference to FIG. 1, the smoke apparatus which concerns on one Embodiment of this invention is demonstrated.
A smoke device 10 in FIG. 1 is an indirect heating type smoke device, and includes a heating container composed of a housing 12 and a smoke agent container 30 disposed inside the housing 12, and a housing. The heating part (heating means) 20 formed between the body 12 and the smoke agent filling part 30 is roughly configured. The smoke agent composition of the present invention is accommodated in the smoke agent filling portion 30, and the smoke agent portion 32 is formed.

The housing 12 includes a substantially cylindrical main body 14, a bottom portion 16, and a lid portion 18.
Examples of the material of the main body 14 include metals and ceramics.
The bottom part 16 can be determined according to the mechanism of the heating part 20, for example, when the heating part 20 is made of a substance (calcium oxide or the like) that generates heat when in contact with water, the bottom part 16 has a nonwoven fabric or A metal mesh or the like is used. By making the bottom part 16 into a nonwoven fabric or a mesh, water can penetrate into the heating part 20 from the bottom part 16 and can be heated.
The lid portion 18 has a through hole, and examples thereof include a mesh, a punching metal, and a lattice frame. Examples of the material of the lid portion 18 include metals and ceramics.

The soot agent container 30 functions as a container for containing the soot agent composition, and also transfers heat energy generated in the heating unit 20 to the contained soot agent composition (smoke agent part 32). It functions as a part.
Examples of the smoke agent container 30 include a metal container.

The heating unit 20 is determined in consideration of the amount of heat necessary for the smoker 32 to smoke, for example, a substance that generates heat by contact with water (for example, calcium oxide) may be accommodated, The iron powder and the oxidant may be separated and accommodated by a partition material, or the metal and a metal oxide or oxidant having a smaller ionization tendency than the metal may be partitioned and accommodated by the partition material. .
Among these, those containing a substance that generates heat upon contact with water are preferable, and those containing calcium oxide are more preferable.

A smoke method using the smoke device 10 will be described. First, the smoke device 10 is installed in the target space. Next, the heating unit 20 generates heat according to the mechanism of the heating unit 20. For example, when the heating unit 20 is made of calcium oxide, the bottom 16 is immersed in water. When the bottom part 16 is immersed in water, the water penetrates the bottom part 16 and comes into contact with calcium oxide, so that the heating part 20 generates heat. When the heating unit 20 generates heat, the smoke agent part 32 is heated via the smoke agent container 30. The smoke composition of the heated smoke agent part 32 generates gas by decomposition of the component (B), the component (A) is smoked together with the generated gas, passes through the through-hole of the lid 18, Spread in the target space.
The component (A) diffused in the target space acts on microorganisms such as mold and exhibits a microorganism suppressing effect.

In the above-described embodiment, the indirect heating type smoke device is described as an example of the smoke device, but the present invention is not limited to this. For example, a direct heating type smoke smoking device similar to the smoke smoking device described in Japanese Patent Application Laid-Open No. 2011-193874 and Japanese Patent Application Laid-Open No. 2002-199834 may be used. The direct heating type smoke device includes a smoke agent portion in which a smoke agent is accommodated, and an igniter that ignites the smoke agent, and the igniter serves as a heating means.
However, since there is no generation of a flame that burns the smoke agent itself, an indirect heating type smoke device is preferred.

The present invention will be described more specifically with reference to examples. However, the present invention is not limited to these.
The raw materials used in the following examples are shown below.

<Raw materials>
A-1: 2-isopropyl-5-methylphenol (IPMP), trade name “Biosol”, manufactured by Osaka Chemical Industry Co., Ltd.
A-2: 3-iodo-2-propynyl butyl carbamate (IPBC), trade name “GLYCACIL”, manufactured by Lonza Japan Co., Ltd.
B-1: Azodicarbonamide (ADCA), trade name “Daiblow AC.2040 (C)”, manufactured by Dainichi Seika Kogyo Co., Ltd.
C-1: Perfume composition 1 shown in Table 1.
C-2: Perfume composition 2 shown in Table 1.
C-3: Perfume composition 3 shown in Table 1.
C-4: Perfume composition 4 shown in Table 1.
C-5: Perfume composition 5 shown in Table 1.

D-1: Dipropylene glycol (DPG), manufactured by Tokyo Chemical Industry Co., Ltd. (boiling point: about 230 ° C.).
D-2: Benzyl benzoate, Tokyo Chemical Industry Co., Ltd. (boiling point: 324 ° C.).
D-3: Isopropyl myristate (IPM), Showa Chemical Co., Ltd. (boiling point: 193 ° C.).
D-4: Triethyl citrate, manufactured by Junsei Chemical Co., Ltd. (boiling point: 294 ° C.).
D-5: Diethyl phthalate, Tokyo Chemical Industry reagent name (boiling point: 298 ° C.)
D-6: Diethylene glycol dimethyl ether (diglyme), trade name “Hisolv MDM”, manufactured by Toho Chemical Industries (boiling point: 162 ° C.).
D-7: Ethanol, manufactured by Tokyo Chemical Industry Co., Ltd. (boiling point: 73 ° C.)

(Optional component)
HPMC: Hydroxypropyl methylcellulose, trade name “Metroze 60SH-50”, manufactured by Shin-Etsu Chemical Co., Ltd.
Clay: Trade name “MK-300”, manufactured by Showa KDE Co., Ltd.

<Examples 1-5, Reference Example 6, Examples 7-25, Comparative Examples 1-6>
[Manufacture of smoke composition]
Smoke agent compositions having the compositions shown in Tables 2 to 5 were produced by the following procedure. In Tables 2 to 5, the “balance” of the clay is an amount such that the total amount of the smoke composition is 100% by mass.
Under room temperature (20 ° C.) conditions, each component was stirred and mixed with a kneader (S5-2G type, manufactured by Moriyama Co., Ltd.) in accordance with the composition shown in the table, and then 10 parts by mass of water was added with the total composition as 100 parts by mass. To obtain a mixture. The obtained mixture was granulated using a die pre-extruding granulator (EXK-1, manufactured by Fuji Powder Co., Ltd.) having an opening having a diameter of 2 mm to obtain a granulated product. The obtained granulated product was cut into a length of 2 to 5 mm by a flash mill (FL300, manufactured by Fuji Paudal Co., Ltd.) and dried for 2 hours by a dryer (RT-120HL, manufactured by Alp Co., Ltd.) set at 70 ° C. To obtain a granular smoke composition.

[Manufacture of smoke devices]
A smoke device having the same configuration as that shown in FIG. 1 was produced. Specifically, a heating container including a substantially cylindrical casing 12 having a bottom 16 made of nonwoven fabric and a smoke agent container 30 disposed inside the casing 12 is prepared, and the heating In the smoke container 30 of the container, 5 g of the produced smoke composition is filled, and calcium oxide (Yoshizawa Lime Industry Co., Ltd.) is placed in the gap between the casing 12 and the smoke container 30 of the heating container. 37 g of product) was filled to form the heating unit 20 to obtain a smoke device.

[Smoke treatment method]
A plastic container for water supply containing 23 mL of water is installed in the approximate center of the floor of the evaluation room that can be sealed in approximately the same volume as the bathroom (1818 mm type (for meter module)) used in general households. Then, a smoke device was placed in the plastic container to start smoke, and the smoke was conducted with the evaluation chamber sealed.

[Evaluation of scent when smoked]
After the smoke treatment by the smoke treatment method, the scent in the evaluation room was immediately sniffed, and the strength of the scent was evaluated by the five professional panelists according to the following criteria. ◎◎, ◎, ○ were accepted. The results are shown in Tables 2-5.
(Evaluation criteria)
◎◎: Aroma can be clearly detected.
A: Easily sense fragrance.
○: Slight aroma can be detected.
Δ: Almost no odor can be detected.
X: Aroma cannot be detected at all.

[Evaluation of burnt odor during smoke]
Immediately after the smoke treatment by the smoke treatment method, the scent in the evaluation room was sniffed, the scent was sniffed, and the strength of the burnt odor was evaluated according to the following criteria by five professional panelists. ◎◎, ◎, ○ were accepted. The results are shown in Tables 2-5.
(Evaluation criteria)
◎◎: Does not sense burnt odor at all.
A: Almost no burning odor can be detected.
○: Slightly burning odor but no problem.
Δ: A burning odor can be sensed.
X: A burnt odor can be easily detected.

[Measurement of volatilization rate of active ingredients]
“Effective volatilization rate” is the effective component volatilized within a predetermined space from the start of soot to a predetermined time after the active component (IPBC and IPMP) contained in the sample (smoke agent composition). The percentage was measured by the following procedure.
A plastic container for water supply containing 23 mL of water is installed at the approximate center of the floor of the evaluation room with an internal volume of 6.38 m ^{3 that} can be sealed, and a smoke device is placed in the plastic container to start smoke. did. Smoke was conducted with the evaluation chamber sealed.
Five minutes after the start of soot, the room air was stirred with a fan, and about 20 L of room air was collected using a vacuum pump and passed through a glass tube packed with silica gel for chromatography to adsorb the active ingredients to the silica gel. I let you.
Next, the active ingredient adsorbed on the silica gel was eluted and collected with acetone, and quantified by gas chromatography to determine the amount of active ingredient (A) in the collected indoor air. Separately, the amount of active ingredient (B) in the smoke agent composition before smoke was determined by gas chromatography. From these values, the volatilization rate was determined by the following formula (1).
Volatilization rate (%) = (A / amount of collected indoor air (L)) × (1 / B) × 6380 × 100 (1)

From the calculated volatilization rate, the volatility of the active ingredient was evaluated according to the following criteria. ◎◎, ◎, ○ were judged as acceptable.
(Evaluation criteria)
A: Volatilization rate is 80% or more.
A: Volatilization rate is 65% or more and less than 80%.
○: Volatilization rate is 50% or more and less than 65%.
X: Volatilization rate is less than 50%.
These results are shown in Tables 2-5.

As shown in the above results, the soot agent compositions of Examples 1 to 5, Reference Example 6 and Examples 7 to 25 all passed the results of scorching odor evaluation during soot, and the scorching odor was sufficient. It was suppressed. In addition, the scent of smoke was good. In particular, Examples 1, 2, Reference Example 6, Examples 7, 9-13, 15, 16, and 20 have a high volatilization rate of component (A) as high as 80% or more, and are excellent as a smoke composition. Met.
On the other hand, Comparative Example 1 containing no (C) component, Comparative Example 2 containing no (D) component, Comparative Example 3 using a solvent having a boiling point of 162 ° C. instead of the (D) component, instead of the (D) component Comparative Example 4 using a solvent having a boiling point of 73 ° C., Comparative Example 5 having a C / D of 0.1, and Comparative Example 6 having a C / D of 6.0 failed to evaluate the burning odor.

Of Examples 1 to 5, Reference Example 6, and Examples 7 to 25, when Examples 1 and 10 to 13 that differ only in the type of component (C) are compared, the component (C) contains a fragrance component (C1). Thus, both the effect of suppressing the burning odor during smoking and the fragrance were improved, and the effect was seen to increase as the content of the fragrance component (C1) in the component (C) increased.
Comparing Examples 1 and 19-22, which differ only in the type of component (D), Example 1 using D-1 (dipropylene glycol) as component (D) is comprehensively (burned odor evaluation, fragrance standing The volatilization rate was the best result.

10 Smoke device 20 Heating unit 30 Smoke agent container 32 Smoke agent unit

Claims (4)

(A) 1-30% by mass of isopropylmethylphenol, (B) 50-80% by mass of azodicarbonamide, (C) 0.1-10% by mass of perfume component, (D) dipropylene glycol, benzyl benzoate , At least one solvent selected from the group consisting of isopropyl myristate, triethyl citrate and diethyl phthalate,
A smoke ratio composition for indirect heating, wherein a mass ratio (C / D) of (C) to (D) is 0.3 to 5.   (C) is at least one fragrance component selected from the group consisting of γ-undecalactone, γ-decalactone, iso-e super, acetyl cedrene, ambroxane, damascone, hexylcinnamic aldehyde and coumarin ( The smoke agent composition for indirect heating according to claim 1, comprising C1).   The smoke composition for indirect heating according to claim 2, wherein the content of the fragrance component (C1) is 10% by mass or more based on the total mass of the (C).   An indirect heating type smoke containing the smoke composition for indirect heating according to any one of claims 1 to 3 and comprising heating means for indirectly heating the smoke composition for indirect heating. apparatus.

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