KR20100130151A - Fumigant composition, apparatus for fumigation, and method of fumigation - Google Patents

Abstract

PURPOSE: A composition and apparatus of smoking agent are provided to reduce remaining smell after smoking and to effectively suppress microorganism. CONSTITUTION: A composition of smoking agent contains a silver-containing drug and organic foaming agent. The particle diameter of the drug is 0.01-1000 um. The organic foaming agent is azodicarbonamide. The composition contains zinc oxide, zinc carbonate, zinc stearate, magnesium stearate, magnesium oxide, calcium carbonate, or calcium phosphate as a co-foaming agent. An apparatus of smoking agent contains: a smoking part(32) filled with the composition; a heat transfer unit; and an apparatus body having main body(14), lower part(16) and cover(18).

Description

Smoke agent composition, smoke device and smoke method {FUMIGANT COMPOSITION, APPARATUS FOR FUMIGATION, AND METHOD OF FUMIGATION}

The present invention relates to a smoke agent composition, a smoke device and a smoke method.

In recent years, with the improvement of the airtightness of houses, microorganisms, such as bacteria and molds, are becoming easier to propagate in living spaces. The propagation of microorganisms not only impairs aesthetics, but also causes great hygiene, such as an infectious disease risk. In particular, a humid bathroom is an environment in which microorganisms, such as a bacterium and a mold, are easy to propagate. Higher parts, such as the ceiling of the bathroom and the upper part of the wall, are difficult to clean from the viewpoint of preventing suction of the mold remover, and therefore are a place where microorganisms are likely to breed. In addition, the inside of a complicated structure, such as a ventilation opening, which cannot reach deep, etc., is more difficult to care for. When microorganisms propagate in such a place, it becomes a source of an unpleasant smell. As for the bathroom, the main countermeasure is to remove the source of the odor, but in many cases, the source of the source is not clear, and the countermeasure was difficult.

For these problems, there is known a method of heating a smoker composition containing a drug for controlling harmful organisms and an organic blowing agent (organic volatilizer) and smoking the indoors (for example, Patent Documents 1 to 3). . The care by such a smoking can easily prevent microbe propagation and odor generation in a bathroom.

Patent Document 1: Japanese Patent Application Laid-Open No. 2008-127299 Patent Document 2: Japanese Patent Application Laid-Open No. 2005-89453 Patent Document 3: Japanese Patent Application Laid-Open No. 56-77202

However, although the fumigant composition used for a bathroom can easily care for a bathroom, a characteristic smell tends to remain after smoking. In addition, the smoker composition is desired to further improve microbial inhibitory effects such as antibacterial, bactericidal, antifungal and antifungal and deodorant effects.

Therefore, an object of the present invention is to provide a smoke agent composition, a smoke device, and a smoke method in which residual odor after smoking is low and is excellent in microbial inhibitory effect and deodorant effect.

The smoker composition of this invention contains the chemical | medical agent containing silver, and an organic foaming agent. It is characterized by the above-mentioned.

It is preferable that the said chemical | medical agent has a volume average particle diameter of 0.01-1000 micrometers, It is preferable that the said organic foaming agent is azodicarbonamide, Moreover, as a foaming adjuvant, zinc oxide, zinc carbonate, zinc stearate, magnesium stearate, magnesium oxide, It is more preferable to contain 1 or more types chosen from the group which consists of calcium carbonate and calcium phosphate.

A smoking device of the present invention is characterized by having a smoker part filled with the smoker composition, a heating part, and a heat transfer part for transmitting heat generated in the heating part to the smoker.

The smoking method of this invention is characterized by heating the said smoke agent composition indirectly.

According to the present invention, the residual odor after smoking can be reduced, and the microbial inhibitory effect and the deodorizing effect can be improved.

1 is a cross-sectional view showing an example of the smoking device of the invention.
2 is a schematic diagram showing an experimental system used for the evaluation of microbial inhibitory effect.

(Smoker composition)

The smoker composition (henceforth only a smoker) of this invention contains the chemical | medical agent containing silver (henceforth (A) component), and the organic foaming agent (henceforth (B) component). will be.

<(A) component: The drug containing silver>

(A) component of this invention is a chemical | medical agent containing silver. By using such (A) component, it can diffuse into the indoor (object space) which is a smoking object, without vaporizing (A) component. In addition, it is because silver is excellent in microbial inhibitory effects, such as sterilization, antibacterial, a mold, or an antifungal, deodorant effect.

As the component (A), an inorganic compound containing silver that is conventionally used in accordance with the purpose of the smoke agent can be used. Examples of the medicament include a fungicide, an antibacterial agent, an antifungal agent, an antifungal agent, a deodorant, an insecticide, and the like, and among them, a fungicide, an antibacterial agent, an antifungal agent, an antifungal agent, and a deodorant are suitable. Can be used.

It is preferable that the vaporization temperature of (A) component is higher than the vaporization temperature of (B) component mentioned later. By using such (A) component, the odor resulting from vaporization of (A) component can be prevented at the time of a smoking process. The vaporization does not include decomposition reactions such as evaporation of a solvent such as water when (A) component is a solution, or oxygen leaving when (A) component is an oxide. In addition, vaporization temperature (boiling point) can be measured using a thermal analysis.

As the component (A), for example, an inorganic silver salt such as silver, oxide, chloride, nitrate, sulfate, sulfonate, carbonate, etc. having an antibacterial, bactericidal, mildew, antifungal and deodorizing effect as an active ingredient, Silver compounds, such as organic silver salts, such as a formate and an acetate, are mentioned.

In addition, (A) component carries out these active ingredients supported by substances, such as a zeolite, a silica gel, low molecular glass, calcium phosphate, a silicate, titanium oxide (henceforth a carrier), etc. For example, zeolite type | system | group antimicrobial agent which carried silver compounds, such as silver silver, inorganic silver salts, such as silver oxide, silver nitrate, and organic silver salt, a silica gel antimicrobial agent, a titanium oxide antimicrobial agent, a silicate antimicrobial agent, etc. are mentioned, for example. have. By using such a component (A), it is possible to prevent residual odor after the smoke treatment.

Especially, as (A) component, from a viewpoint of reducing rather than the residual wheel of an odor, inorganic silver salts, such as a silver single substance, silver oxide, silver nitrate, or the like, and the inorganic chemical agent which carried these in the support | carrier are preferable.

In addition, (A) component can be used individually by 1 type or in combination of 2 or more types.

Although the form of (A) component is not specifically limited, It can determine by taking into consideration the width | variety of the space etc. which are the object of a fume treatment. (A) A component can improve softening rate, so that particle | grains are fine, and can diffuse to a wide area. On the other hand, when the particle | grains of (A) component are too small, it will become difficult to fall after spread | diffusion, and it needs time until the expression of the chemical effect below the space made into a process object. For example, as for the volume average particle diameter of (A) component, 0.01-1000 micrometers is preferable, 0.5-100 micrometers is more preferable, 1-5 micrometers is more preferable. In the smoke agent composition of this invention, even if it is (A) component of such a comparatively large particle size, it can soften and diffuse. Here, "softening" means making (A) component into the state which can be diffused in a target space. In addition, a volume average particle diameter means the value calculated | required by the laser-dilution / scattering type particle size distribution measuring apparatus (LA910, the Horiba Corporation make), and can measure it as follows. (A) component is dispersed in distilled water so that it may become 1 mass% of solid content, and it is set as a sample. This sample is put into a laser dilution / scattering particle size distribution measuring device, and the particle size distribution is measured by irradiating a laser after dispersion by ultrasonic waves in the device. The diameter whose cumulative volume is 50% (volume) is taken as the average particle diameter.

The compounding quantity of (A) component in a smoke agent can be determined according to the kind of (A) component, active ingredient concentration, and the function calculated | required by a smoke agent. For example, as for (A) component which makes silver or its compound an active ingredient, it is preferable to make the silver concentration in a smoke agent into 0.0001-1 mass%, and it is more preferable to set it as 0.01-0.1 mass%. If it is less than the said lower limit, a desired drug effect is hard to be exhibited, and even if it mix | blends more than the said upper limit, the effect of a chemical | medical agent will be saturated, and further improvement of an effect cannot be desired.

<(B) component: Organic blowing agent>

(B) component which is an organic foaming agent is not specifically limited, A conventionally well-known thing can be used.

As (B) component, what thermally decomposes by heating and generate | occur | produces a large amount of heat, and generate | occur | produces carbon dioxide gas, nitrogen gas, etc. (henceforth a foaming gas) are used, For example, azodicarbonamide, p, p'-oxybis (benzenesulfonyl hydrazide), N, N'- dinitrosopentamethylenetetramine, azobisisobutylonitrile, etc. are mentioned. Especially, azodicarbonamide is preferable from a viewpoint of decomposition temperature, the generation amount of foaming gas, etc.

These (B) components can be used individually by 1 type or in combination of 2 or more types. These (B) components can foam-melt (A) component and heating by heating, and can soften (A) component effectively by the action of the thermal decomposition gas of (B) component.

The compounding quantity of (B) component in a smoke agent can be determined in consideration of the kind of (B) component, the particle diameter of (A) component, etc., For example, 50-80 mass% is preferable, and 60-70 mass% Is more preferable. If it is less than the said lower limit, it cannot spread | diffuse (A) component efficiently, and when it exceeds the said upper limit, many decomposition products (residue) of (B) component will scatter and tend to pollute the target space.

<(C) Component: Foaming Aid>

(C) component which is foaming adjuvant can be mix | blended with the smoke agent of this invention. By mix | blending (C) component, abnormal decomposition of (B) component can be suppressed and generation | occurrence | production of substances other than foaming gas can be suppressed. In addition, the component (C) lowers the foaming temperature of the component (B) and expands the softening and diffusing power of the component (A) by foaming the component (B) at a lower temperature, and to every corner of the target space (A) The component can be diffused. (C) component is 1 or more types chosen from the group which consists of zinc oxide, zinc carbonate, zinc stearate, magnesium stearate, magnesium oxide, calcium carbonate, and calcium phosphate, Among these, zinc oxide and calcium carbonate are preferable, and zinc oxide is preferable. This is more preferable. Zinc oxide accelerates decomposition of (B) component, softens (A) component rapidly, and can diffuse | disperse widely. Moreover, calcium carbonate is excellent in the effect which suppresses abnormal decomposition of (B) component, and can suppress contamination, such as the floor in which the smoke agent was provided.

0.1-20 mass% is preferable, for example, as for the compounding quantity of (C) component in a smoke agent, 0.1-15 mass% is more preferable, and 0.5-5 mass% is the most preferable.

If it is less than 0.1 mass%, the effect as a foaming aid (volatility adjuvant) is small, and when it exceeds 20 mass%, it may become unstable foaming. Moreover, it is preferable that it is (B) / (C) = 1-700, and, as for the mass ratio of (B) component and (C) component, it is more preferable that it is 10-150. By setting it as said range, the foamability of (B) component improves, the softening and diffusion of (A) component become favorable, and microbial inhibitory effect can be improved more.

<Optional ingredient>

In the smoke agent, arbitrary components other than (A) component, (B) component, and (C) component can be mix | blended in the range which does not impair the effect of this invention. As an optional component, additives, such as a stabilizer, a binder, an excipient, a coloring agent, and a pigment | dye, are mentioned, for example. Among these, it is especially preferable to contain any 1 type, or 2 or more types of a stabilizer, a binder, and an excipient.

Examples of the stabilizer include sorbitan fatty acid esters, dibutylhydroxytoluene, butylhydroxyanisole, molybdenum propyl, epoxy compounds (epoxidized soybean oil, epoxidized castor oil, and the like).

As the binder, methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxypropyl methyl cellulose, hydroxypropyl cellulose, starch, dextrin, hydroxypropyl starch, gelatin, polyvinyl alcohol, polyvinylacetate, polyvinylpyrrolidone, Sodium polyacrylate; and the like.

Examples of the excipient include clay (aluminum functional silicate), talc, diatomaceous earth, kaolin, bent knight, white carbon and the like.

<Manufacturing Method>

The smoke agent of this invention is prepared as solid preparations, such as powder form, a granule, a tablet. Solid preparation can be prepared using a well-known manufacturing method according to the target formulation. For example, when it is made into a granular preparation, it can manufacture by well-known granulated material manufacturing methods, such as extrusion granulation method, compression granulation method, stirring granulation method, rolling granulation method, and fluidized bed granulation method.

As a specific example of the manufacturing method by an extrusion granulation method, each component of a smoke agent is mixed by kneader etc., and it adds and mixes by adding an appropriate amount of water, and the obtained mixture is mixed using the dice which have opening of a certain area, (Pre) assemble using extruded or lateral extruded granulators. The granulated product may further be cut to a certain size using a cutter or the like and dried.

<How to smoke>

The smoking method of the present invention is to indirectly heat the smoking agent of the present invention. Indirectly, it is a method of supplying the temperature (heat energy) obtained by thermally decomposing (B) component through a container, a heat-transfer surface, etc., without burning a smoke agent. For example, a fuming agent may be accommodated in an arbitrary metal container, a container such as a ceramic container, and smoked by heating the container. By indirectly heating a smoke agent, indoor pollution by the combustion gas of a smoke agent, etc. can be reduced. In addition, the target space may be smoked by assembling in a smoking apparatus to be described later. The object space is not particularly limited, and examples thereof include a bathroom, a living room, a wardrobe and the like.

The heating method is not specifically limited, What is conventionally known as an indirect heating system can be used. For example, a method of contacting water to generate heat and bringing it into contact with water, using the heat of reaction, mixing iron and an oxidizing agent (ammonium chloride, etc.), metal oxides or oxidants having a smaller tendency to ionize than metal and the gold soot The method of mixing and using an oxidation reaction etc. are mentioned. Examples of the substance that generates heat in contact with water include calcium oxide, magnesium chloride, aluminum chloride, calcium chloride and iron chloride. Especially, the method of making the substance which generate | occur | produces in contact with water and generate | occur | produces heat contact with water, and using the reaction heat is preferable, and the method of using the reaction heat of calcium oxide and water is more preferable.

What is necessary is just to set the usage-amount of the fumigant of this invention suitably according to the volume of the target space, Usually, 0.1-2.4g is preferable per 1m <3>, and 0.4g-2.0g is more preferable.

The smoking treatment time (time for sealing the target space after the start of smoking) is not particularly limited, and is preferably 1 hour or more, more preferably 1.5 hours or more.

(Smoker)

The smoking device of the present invention has a smoker portion filled with the above-described smoker, a heating portion for heating the smoker portion, and a heat transfer portion for transmitting heat generated from the heating portion to the smoker portion.

The smoking apparatus will be described with an example. 1 is a cross-sectional view of the smoking device 10 of the present invention. The smoking device 10 is roughly comprised by the body 12, the heating part 20 provided in the inside of the body 12, and the smoke agent part 32 provided in the inside of the body 12. As shown in FIG. The body 12 is comprised from the substantially cylindrical main body 14, the bottom part 16, and the cover part 18. As shown in FIG. In the body 12, a smoke agent container 30 is provided, and a smoke agent is filled in the smoke agent container 30, and the smoke agent part 32 is formed.

The cover part 18 has a hole, and a mesh, a punching metal, a grid | lattice-shaped frame, etc. are mentioned. As a material of the cover part 18, a metal, a ceramic, etc. are mentioned, for example. The material of the main body 14 is the same as that of the cover part 18.

The smoker container 30 functions as a container for filling the smoker unit 32 and functions as a heat transfer unit for transmitting the heat energy generated in the heating unit 20 to the smoker unit 32. As the smoke agent container 30, a metal container etc. are mentioned, for example.

The heating unit 20 is not particularly limited, and may be determined in consideration of the amount of heat required for softening the smoke agent unit 32. For example, the heating unit 20 may be formed of a substance (for example, calcium oxide) that generates heat in contact with water. It may be filled, or the iron and the oxidant may be partitioned and filled with the partition material, or the metal and the metal oxide or the oxidant having a smaller ionization tendency than the metal may be partitioned and filled with the partition material. Especially, it is preferable to fill with the substance which generate | occur | produces in contact with water, and it is preferable to fill with calcium oxide.

The bottom part 16 can be determined according to the mechanism of the heating part 20, for example, when the heating part 20 is comprised by the substance (calcium oxide etc.) which generate | occur | produces in contact with water, 16) a nonwoven fabric, a metal mesh, or the like can be used. By making the bottom part 16 into a nonwoven fabric or a mesh, water can intrude into the heating part 20 from the bottom part 16, and it may heat.

The smoking method using the smoking device 10 is demonstrated. First, the smoking apparatus 10 is installed in a target space. Subsequently, the heating unit 20 generates heat in response to the mechanism of the heating unit 20. For example, when the heating part 20 filled with calcium oxide is provided, the bottom part 16 is immersed in water. When the heating unit 20 generates heat, the smoker unit 32 is heated through the smoker container 30. The smoke of the heated smoker portion 32 generates gas by decomposition of the component (B), and component (A) softens together with the generated gas, and diffuses through the hole of the lid portion 18. In this way, (A) component diffuses in a target space, and microbial inhibitory effect and deodorant effect can be acquired.

As mentioned above, since (A) component is excellent in microbial inhibitory effects, such as antibacterial, sterilization, mold, anti-mold, and deodorization, it reduces the microorganism used as a source of odor in a target space, and also proliferates microorganisms. Can be prevented. (A) component exhibits a microbial inhibitory effect in a short time when it contacts with microorganisms, such as a mold. On the other hand, organic chemicals, such as 3-iodine-2-propynylbutyl carbamate (IPBC) and 2-isopropyl-5-methylphenol (IPMP), are the parts which are to be processed such as sterilization (for example, ceilings, etc.). Sterilization action is achieved by staying at Thus, the fumigant of the present invention can exhibit a high microbial inhibitory effect and a deodorizing effect as compared with the conventional fumigant even in a place where the moisture is high and the drug is hard to stay for a long time like a bathroom.

In addition, by making (A) component which does not vaporize at the general vaporization temperature (200-300 degreeC) of (B) component as an active component, it can diffuse into object space, without vaporizing (A) component. (A) component has a low original smell. Moreover, since (A) component itself is hard to thermally decompose, the by-products with high irritation and a by-product which give off odor do not arise. For this reason, the generation | occurrence | production of the smell by vaporization of the active ingredient at the time of a smoking treatment can be suppressed like the organic substance used as an active ingredient of the conventional fumigant.

In addition, by combining the component (B) with the component (B), the component (B) can be vaporized stably at a lower temperature, and the component (A) can be easily smoked to every corner of the target space.

By using (A) component as an inorganic silver salt and an inorganic chemical agent carrying inorganic silver salt on a carrier, the active ingredient is not decomposed, and its effect can be maintained for a long time even after contact with bacteria or mold.

The smoking apparatus of this invention heats a smoke agent indirectly, and there is no generation | occurrence | production of the flame which burns the smoke agent itself like a scrubbing board type smoke agent. In addition, a flammable gas or the like is not used like a spraying agent. Therefore, handling is easy even under an environment in which a bath kiln using gas is provided.

[Example]

Although an Example is shown to the following and this invention is demonstrated in detail below, this invention is not limited to this.

(Used raw materials)

(A) Component: Chemicals Containing Silver>

A-1: Silver Supported Silica-Alumina Inorganic Antimicrobial Agent (Brand Name: ATOMY BALL- (UA), Volume Average Particle Diameter 15nm, Silver Content 0.07% by Mass, Nikki Catalyst Chemicals, Inc.)

A-2: Silver Supported Silicate Inorganic Antibacterial Agent (Product Name: AIS-NAZ320, Volume Average Particle Size 2µm, Silver Content 1.2% by Mass, manufactured by Nikki Catalytic Chemical Co., Ltd.)

A-3: Silver-supported zeolite-based inorganic antibacterial agent (brand name: Ceramide CW, volume average particle diameter 2 μm, true specific gravity 2 g / cm 3 (20 ° C.), volume specific gravity 0.4 g / cm 3 (20 ° C.), silver content 0.6 mass%, Shinenen Geomek Co., Ltd.)

A-4: silver oxide (by express, volume average particle diameter 0.1 micrometer, the product made by Wako Pure Chemical Industries, Ltd.)

A-5: Silver-supported zeolite-based inorganic antimicrobial agent (trade name: Zeomic AJ10N, volume average particle diameter 2.5 μm, true specific gravity 2 g / cm 3 (20 ° C.), volume specific gravity 0.4 g / cm 3 (20 ° C.), silver content 2.5 mass%, Shinenen Geomek Co., Ltd.)

<(A ') component: Comparative product of (A) component>

A'-1: 3-iodine-2-propynylbutyl carbamate (IPBC) (brand name: Glycacil 2000, product made by Long the Japan Corporation)

A'-2: 2-isopropyl-5-methylphenol (IPMP) (Reagent Green Limited, Kanto Chemical Co., Ltd.)

<(B) component: Organic blowing agent>

B-1: azodicarbonamide (ADCA) (brand name: Dibro AC.2040 (C), Dainichi Purification Industry Co., Ltd. product)

<(C) Component: Foaming Aid>

C-1: Zinc oxide (Japan Pharmacopoeia zinc oxide, average particle diameter 0.6 micrometer, true specific gravity 5.6 g / cm <3> (20 degreeC), Sakai Chemical Co., Ltd. product)

C-2: Calcium Carbonate (Reagent Rust Grade 1, Kanto Chemical Co., Ltd.)

C-3: tricalcium phosphate (food additive, Kanto Chemical Co., Ltd.)

<Other Ingredients>

Binder: hydroxypropyl methyl cellulose (HPMC) (trade name: Methorose 60SH-50, manufactured by Shin-Etsu Chemical Co., Ltd.)

Excipient: Clay (trade name: NK-300, manufactured by Showa KDE Co., Ltd.)

(Assessment Methods)

<Evaluation of microbial inhibitory effect>

≪Big mold evaluation≫

[Exposure test]

The exposure test was done using the experimental system 100 shown in FIG. As shown in FIG. 2, the evaluation chamber 102 which can be sealed by volume like a 1818 mm type bathroom (for a meter module) was prepared as a target space. The heating apparatus 110 was installed in the schematic center part of the bottom 104 of the evaluation chamber 102. The heating device 110 was produced by laying aluminum foil on a hot plate. In the ceiling 106 of the evaluation chamber 102, the flat plate medium 120 and 130 with mold were installed, and the flat plate medium 140 with the mold was installed in the bottom 104 of the evaluation chamber 102. As shown in FIG. The flat plate medium 120 with the mold was positioned directly above the outline of the heating device 110, and the flat plate medium 130 with the mold was located at the corner of the ceiling 106. As shown in FIG.

The smoke agent of each example was mounted on the aluminum foil of the heating apparatus 110, and it heated with the hotplate set to 350 degreeC. Heating on the hotplate was stopped 10 minutes after the start of smoke from the smoker. In the smoke test 1, 90 minutes after the start of the smoke, 30 minutes after the smoke test 2, the air in the evaluation chamber 102 was exhausted and the exposure test was completed.

[Production of Flat Badge with Mold]

Cladosporium cladosporioides HMC1064 (bath separation bacteria, hereinafter referred to as mold for evaluation) was incubated for one week at 25 ° C. in a sloped medium of potato dextrose agar (manufactured by Difco). Separately, potato dextrose agar (manufactured by Difco) was charged to the chalet and an initial flat medium was prepared. In the center of the initial flat medium, 1 point of evaluation mold was inoculated using the hook-shaped nichrome wire, and it incubated at 25 degreeC for 3 days. In this way, mold-coated flat medium 120 (for effect 1), 130 (for effect 2), and 140 (for effect 3) in which fungal colonies were formed on the plate medium was produced. The diameter of the mold colony before the exposure test of each of the mold-bearing flat media (120, 130, 140) was taken as the initial diameter.

[Measurement of the Exposure Test]

After the exposure test, the mold-bearing flat media (120, 130, 140) was recovered, and the recovered mold-bearing flat media (120) (Effect 1: directly above the smoker), (130) (Effect 2: ceiling corner), (140 (Effect 3: bottom) was incubated at 25 ° C. for 5 days, and large fungal effects were evaluated according to the following evaluation criteria.

[Evaluation standard]

After incubation for 5 days, the diameter of the mold colony (diameter after culture) was measured, and diameter difference was calculated | required by following formula (1).

The diameter difference calculated | required was classified according to the following criteria, and it was set as the big mold evaluation.

A: diameter difference is 0-10 mm

B: diameter difference is more than 10 mm and 15 mm or less

C: diameter difference exceeds 15 mm

Diameter difference (mm) = diameter after culture (mm)-initial diameter (mm). (One)

≪Big yeast evaluation≫

[Exposure test]

Other than replacing the flat plate with the yeast with the fungus (120) (Effect 1: directly above the smoker), (130) (Effect 2: corner of the ceiling), (140) (Effect 3: floor) The exposure test was done similarly to mold evaluation.

[Production of Flat Badge with Yeast]

Rhodotorula rubra HIC3420 (bath separation bacteria, hereinafter referred to as yeast for evaluation) incubated on a plate medium of potato dextrose agar for 25 days in a sterilized 0.05 mass% Tween80 aqueous solution Was adjusted to be 1 × 10 ³ to 3 × 10 ³ CFU / mL to obtain a bacterial solution. Separately, potato dextrose agar (manufactured by Difco) was charged to the chalet and an initial flat medium was prepared. The initial plate medium was smeared with 0.1 mL of the bacteria solution to prepare a yeast plate medium.

[Measurement of the Exposure Test]

The yeast plated medium after the exposure test was recovered, and the recovered yeast plated medium was incubated at 25 ° C for 5 days. Separately, yeast adhered plate medium not provided for the exposure test was likewise cultured. After incubation, the expressed colonies were counted and large yeast effects were evaluated according to the following evaluation criteria.

[Evaluation standard]

After cultivation, the number of bacteria was converted to the common logarithm, and Δlog was obtained by the following formula (2). Δlog obtained was classified according to the following criteria and used as a large yeast evaluation.

A: △ log is 2 or more

B: Δlog is 1 or more but less than 2

C: △ log is less than 1

[0050]

Log = log (number of bacteria after cultivation of yeast-attached plate medium not provided for exposure test)-log (number of bacteria after cultivation of yeast-attached plate medium provided for exposure test). (2)

<Deodorization Evaluation, Base Residue Evaluation>

≪Exposure examination≫

The hotplate was installed in the outline center part of the floor in the bathroom (1818 mm type | mold (bath for meter module)) used in general households, and the heating apparatus which installed the aluminum foil on the said hotplate was prepared. The smoker of each example was put on the aluminum foil of the said heating apparatus, and it heated by the hotplate set to 350 degreeC. Heating on the hotplate was stopped 10 minutes after the start of smoke from the smoker. 90 minutes after the start of the smoke, the air in the bathroom was evacuated and the exposure test was completed. After the exposure test was completed, three panelists confirmed the smell in the bathroom by a six-step intensity display method.

≪Deodorization evaluation≫

Deodorization evaluation, three panelists aimed at smell (initial smell) in bathroom before exposure examination about bathroom smell (exposure smell after exposure), and graded by six-step intensity notation, and of three scoring results The average score was classified according to the following evaluation criteria and used as the deodorant evaluation.

≪Gase odor residual evaluation≫

The base odor residual evaluation was scored by the six-stage intensity labeling method for the base odor (odor derived from the smoke agent) regarding the post-exposure odor. The average score of three scoring results was classified according to the following evaluation criteria, and it was set as the deodorant evaluation.

≪6-step intensity notation≫

0 points: smell is not felt

1 point: barely feel the smell (detection threshold)

2 points | pieces: The smell which targets it is easy to feel (cognition threshold which can imagine the nature of smell)

3 points | pieces: I feel the smell to target

4 points | pieces: I feel strongly the target smell.

5 points | pieces: It feels strongly that the smell to target is remarkably strong.

≪Evaluation Criteria≫

A: less than 1 point

B: 1 or more points, less than 2 points

C: 2 or more points but less than 3 points

D: 3 or more points

(Examples 1 to 29 and Comparative Examples 1 to 4)

According to the composition shown in Tables 1-5, each component was stirred and mixed with the kneader (S5-2G type | mold, the product made by Moriyama Co., Ltd.), water was added, it mixed, and the mixture was obtained. The obtained mixture was granulated using a pre-extrusion granulator (EXK-1, manufactured by Fuji Powder Co., Ltd.) of a die having a hole having a diameter of 2 mm to obtain a granulated product. The granulated material thus obtained was cut into a length of 2 to 5 mm and dried by a dryer (RT-120HL, manufactured by Arf Corporation) set at 70 ° C to obtain a granular smoker. About the obtained smoker, the microbial effect evaluation, deodorization evaluation, and base odor residual evaluation are performed using the usage-amount described in Tables 1-5, and the result is shown to Tables 1-5.

The composition (mass%) of (A-1)-(A-3) and (A-5) in a table | surface was described as Ag amount. In addition, in the table, the value of the diameter difference in the column of the microbial effect against the fungal effect, the value of Δlog in the large yeast evaluation column, and the average point in the deodorization evaluation and the base odor evaluation were described in parentheses, respectively.

As the results of Examples 1 to 29 of Tables 1 to 5, the smoke agent of the present invention showed an excellent microbial inhibitory effect against mold and yeast. In addition, the fumigant of the present invention had a high deodorizing effect in the bathroom and little residual of base odor.

Examples 19-29 (Tables 4-5) which used (C) component together with (A) component and (B) component are microorganisms with respect to mold, compared with Examples 1-18 which do not mix | blend (C) component. The inhibitory effect was improved. Especially, Example 22 using zinc oxide as (C) component showed the improvement of microbial inhibitory effect compared with Examples 23 and 24 which changed the kind of (C) component. In addition, the further improvement of the microbial inhibitory effect was seen in Examples 19-24, 26, 27, 29 which made (B) component / (C) component = 10-140 (mass ratio) (smoke test 1, mold evaluation). 2).

On the other hand, Comparative Examples 1-3 using IPBC which is an organic chemical agent instead of (A) component have microbial inhibitory effect on mold, but the deodorizing effect of a bath is low, and base smell remains. Moreover, the comparative example 4 which used IPMP which is an organic type chemical agent instead of (A) component had the low microbial inhibitory effect on mold and yeast. In addition, in Comparative Example 4, the deodorizing effect of the bathroom was low, and base odor remained.

In comparison with Examples 6 and 8 and Comparative Example 3 in which (A) component and the same amount of (A ') component of these Examples were blended, the smoke agent of the present invention had higher microbial inhibition if the compounding amount of the drug was the same. The effect and deodorant effect is achieved.

From the above results, it was found that by using the component (A), the microbial inhibitory effect and the deodorizing effect can be improved and the residual of the base odor can be suppressed.

10: smoking device
20: heating part
30: smoked container
32: smoke smokers

Claims (6)

A smoker composition comprising a drug containing silver and an organic blowing agent. The method of claim 1,
The drug is a smoker composition, characterized in that the volume average particle diameter of 0.01 to 1000㎛. The method of claim 1,
The organic blowing agent is azodicarbonamide, characterized in that the smoker composition. The method of claim 1,
A fuming agent composition containing at least one member selected from the group consisting of zinc oxide, zinc carbonate, zinc stearate, magnesium stearate, magnesium oxide, calcium carbonate and calcium phosphate as the foaming aid. A smoke device comprising the smoke agent composition filled with the smoke agent composition according to any one of claims 1 to 4, a heating unit, and a heat transfer unit that transmits heat generated in the heating unit to the smoke agent. A smoking method characterized by indirectly heating the smoker composition according to any one of claims 1 to 4.

Images