JP2007332131A - Gradually disintegrating antibacterial agent, antibacterial liquid by using the same and device for forming the antibacterial liquid - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide an antibacterial agent capable of forming antibacterial liquid exhibiting an excellent antibacterial activity, only by immersing the agent in water or the other liquid. <P>SOLUTION: This antibacterial agent 3 obtained by mixing, kneading and forming a metal-loaded inorganic compound by carrying silver or copper with titanium dioxide and a fine inflammable substance, and then calcining at a relatively low temperature is provided by gradually disintegrating on immersing it in the liquid such as water 4, eluting Ag ion, Cu ion, etc., into the liquid from the metal-loaded inorganic compound, also dispersing titanium oxide in the liquid and continuously exhibiting an antibacterial property by exchanging or supplementing the water, etc. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an antibacterial agent used for the purpose of deodorization of pets, and for the purpose of sterilization, deodorization and the like in a car, shoes, garbage, toilets, washrooms, bathrooms, and the like, and an antibacterial liquid using the same And an antibacterial liquid generator.

  Conventionally, a porous sintered body having an antibacterial action, which is formed by blending a zeolite carrying Ag ions or Cu ions and titanium dioxide, has been proposed (see, for example, Patent Document 1 and Patent Document 2).

  However, the porous sintered body is used in the form of powder, directly added to the gas or liquid to be purified, and used as an antibacterial liquid in which the porous sintered body is immersed in water. is not.

  In addition, a silver ion water generating material obtained by combustion synthesis of a mixed material containing Ag and Ti has been proposed (see, for example, Patent Document 3).

  When the material for generating silver ion water is subjected to combustion synthesis, by igniting the mixed material containing Ag and Ti in the air, a combustion synthesis reaction in which a high-temperature reaction of 2000 ° C. or more proceeds in a chain occurs. A ceramic porous material for producing silver ion water can be obtained in several seconds.

  However, in the material for generating silver ion water produced by combustion synthesis at high temperature, in order to release a sufficient amount of Ag ions from the surface of the material when the material is used as silver ion water, In addition, it has been necessary to go through complicated processes such as irradiating ultrasonic waves using an ultrasonic oscillator or the like. Moreover, in the silver ion water using the said material, the silver ion density | concentration is about 10-200ppb, and there was room for improvement in Ag ion discharge | release amount.

JP-A-8-26851 JP-A-8-310881 JP 2006-69935 A

  In view of the above-described situation, the present invention intends to solve the problem when a metal-supported inorganic compound such as Ag or Cu and the like without passing through a complicated process such as irradiation with ultrasonic waves when immersed in water or the like. Titanium dioxide can be released at a high concentration, exhibiting excellent antibacterial performance, and can be maintained at a high concentration by simply replacing or supplementing a dispersion medium such as water. It is to provide an antibacterial liquid and an antibacterial liquid generating apparatus using the same.

  In order to solve the above-mentioned problems, the antibacterial agent according to the present invention is a clay containing at least one of silica and alumina, and a metal-supporting inorganic compound (A) formed by supporting at least one of Ag and Cu. A composition comprising (B), titanium dioxide (C), and a fine combustible material (D) is kneaded, molded and then fired, and has a property of gradually disintegrating when immersed in water. The metal-supporting inorganic compound (A) is 50 to 74% by weight, the clay (B) containing at least one of silica and alumina is 20 to 44% by weight, and titanium dioxide (C) is 1 to 10%. It is preferable to use a composition containing 5% by weight and further 5 to 10% by weight of a fine combustible material (D).

  Here, it is preferable that the antibacterial agent has a property of partially gradually disintegrating when immersed in water.

  Moreover, the said antibacterial agent can obtain a preferable slow decay type thing by baking the said composition for 2 to 8 hours at the atmospheric temperature of 500-800 degreeC.

  Further, the fine combustible material (D) is a powdery or granular synthetic polymer, powdered or granular natural wood material, powdered or granular seed, synthetic fiber, natural fiber, activated carbon fiber Those consisting of at least one selected from the above are preferably used.

  The size of the antibacterial agent is preferably in the range of about 1 to 3 g per unit weight because of its slow disintegration.

  The antibacterial liquid according to the present invention is obtained by immersing the antibacterial agent as described above in a liquid.

  Furthermore, the antibacterial liquid production apparatus according to the present invention is characterized in that a spray container is filled with the antibacterial agent and the liquid as described above.

  The solution is preferably water or an aqueous solution, and the aqueous solution is preferably a saline solution.

According to the antibacterial agent according to the present invention and the antibacterial solution using the same as described above, the whole or by immersing the antibacterial agent in a liquid such as water without passing through complicated steps such as irradiation with ultrasonic waves. It disintegrates gradually and disperses a metal-supporting inorganic compound such as Ag or Cu and titanium oxide (TiO ₂ ) in water or other liquid, and Ag and Cu are eluted in an ionized state in the liquid. By using saline as the liquid, the elution effect is promoted, and more excellent antibacterial performance is exhibited. At the same time, the ion release performance at a high concentration can be maintained only by exchanging or supplementing a dispersion medium such as water. Therefore, for example, when used in pet applications that are safe materials and require high antibacterial performance, it is easy to handle and can exhibit excellent antibacterial performance while ensuring safety. In addition, by simply putting this antibacterial agent in a spray-type container together with water etc., you can not only make an antibacterial solution easily, but also by spraying it on areas where odors are likely to occur such as pets, the antibacterial effect is demonstrated. Is done.

  As described above, the antibacterial agent according to the present invention includes a metal-supporting inorganic compound (A) that supports at least one of Ag and Cu, and a clay (B) that includes at least one of silica and alumina. In addition, the antibacterial composition containing titanium dioxide (C) and the fine combustible material (D) is kneaded, molded, fired, and gradually disintegrated when immersed in a liquid such as water. It is characterized by having.

  The metal-supported inorganic compound (A) supports Ag and / or Cu, which are the basis for developing antibacterial performance, and serves as a release source of Ag ions and Cu ions. Examples of the inorganic compound that serves as a carrier include inorganic compound materials mainly composed of metal oxides, metal phosphates, and the like, and are particularly limited as long as they have a function capable of supporting Ag or Cu. In addition to the above, inorganic materials such as cement, gypsum, and glass-based materials are also included. Among these, as the metal-supported inorganic compound (A), since silver ions can be held firmly for a long period of time, a material obtained by supporting silver on a hardly soluble orthophosphate (for example, JP-A-5-294808, And JP-A-7-316008) can be preferably used, but is not limited thereto. The content ratio of Ag or Cu in the metal-supported inorganic compound (A) may be appropriately adjusted to an amount capable of stably supporting these metals and exhibiting sufficient antibacterial performance, and is particularly limited. Is not to be done. The metal-supported inorganic compound (A) is from the viewpoint of uniform mixing with other material components (B), (C) and (D) to be kneaded, and the release performance of Ag ions and Cu ions when used as an antibacterial agent. The powder form is preferred.

  The clay (B) is an inorganic natural product containing at least one of silica and alumina, and is a component that becomes a shell body that is hardened by firing and forms a skeleton of an antibacterial agent. Examples of the clay (B) include, but are not limited to, Kibushi clay and Sasame clay. The clay (B) is preferably in a powder form from the viewpoint of uniform mixing with the other material components (A), (C) and (D).

  Titanium dioxide (C) exhibits antibacterial performance together with Ag ions and Cu ions. That is, only the Ag ion and Cu ion, for example, it was difficult to express a sufficient antibacterial effect against bacteria-release toxins such as verotoxin and enterotoxin, but by adding titanium dioxide to the antibacterial agent, When exposed to ultraviolet rays, a photocatalytic effect is exhibited, and the fungus-release toxin can be decomposed and detoxified. Titanium dioxide (C) is preferably in the form of fine particles generally used for photocatalysts.

  The fine combustible material (D) is burned down when the composition kneaded and molded together with the components (A) to (C) is fired, and then becomes voids, so that the antibacterial agent and the porous body It has the function to do. The fine combustible material (D) is not particularly limited as long as it is burned off by firing, but is not limited to a synthetic polymer in powder form or granular form, natural wood material in powder form or granular form, powder form or Granulated seeds, synthetic fibers, natural fibers, activated carbon fibers and the like can be suitably used. Examples of the powdered or granular seeds include, but are not limited to, those in which walnuts are powdered or granular. In order to ensure a further high level of safety and to use it with more peace of mind, it is particularly preferable to use natural fibers or powdered or granular seeds. The fine combustible material (D) is preferably in the form of powder, granules, or fibers in order to create a uniform porous body by generating uniform voids in the antibacterial agent. The particle size of the component (D) is not particularly limited, but is preferably about 50 to 500 μm from the viewpoint of slow disintegration.

  The composition comprising the components (A) to (D) has a mixing ratio of each component as described below in order to impart appropriate strength required for the antibacterial agent and excellent antibacterial performance. . That is, the metal-supported inorganic compound (A) is a main component in an antibacterial agent that releases Ag ions and Cu ions and exhibits deodorant antibacterial performance, and has excellent antibacterial performance per unit volume of the antibacterial agent. In order to do so, it is made into 50 to 74 weight% in the said composition. Moreover, the clay (B) is a component that forms a skeleton of the antibacterial agent, and is 20 to 44% by weight in the composition in order to impart the slow disintegration required for the antibacterial agent. Furthermore, the said titanium dioxide (C) is a component which expresses antibacterial performance with the said (A) component, and is 1 to 10 weight% in the said composition. Further, the fine combustible material (D) is contained in the composition in an amount of 5 to 10% by weight in order to produce a uniform void in the antibacterial agent. Furthermore, a small amount of binder components such as CMC, methylcellulose, gum arabic and the like may be added to the composition comprising the components (A) to (D), and the amount added may be kneaded or molded. The binder component may be appropriately determined in consideration of handling at the time, but the binder component is preferably 0.5 to 2% by weight in the composition.

  In order to knead the composition comprising the components (A) to (D), a general kneader can be used. Further, the shape of the kneaded product when it is molded may be appropriately determined according to the use of the antibacterial agent, and is not particularly limited, but the surface area of the molded body is increased to increase the contact area with water. In order to ensure the strength while maintaining the strength, for example, it is preferable to have a shape as shown in FIGS. For example, as shown in FIG. 1 (a), by forming a cylindrical shape having a hemispherical concave portion at the substantially central portion of both end faces, it is possible to ensure a shape retaining force during handling before and after firing, and an antibacterial agent Even if you carry a shock when carrying it, you can make it hard to collapse. Moreover, although what is shown in FIG.1 (b) is a cylindrical body shape, in addition to the surface area of an antibacterial agent increasing by making such a cylindrical shape, as shown in FIG. 4 and mentioning later, it is a spray type. The antibacterial agent 3 can be inserted into the liquid absorption tube 5 of the container 2. Further, FIG. 1C is a tablet shape, FIG. 1D is a quadrangular shape having hemispherical concave portions on each surface, and FIG. 1E is a spherical shape. By using a spherical antibacterial agent as shown in FIG. 1 (e), even when many antibacterial agents are filled and used in contact with each other, excessive collapse due to contact between the antibacterial agents can be prevented. it can.

  As a condition for firing the kneaded and molded antibacterial composition containing the components (A) to (D), firing is preferably performed at an ambient temperature of 500 to 800 ° C. for 2 to 8 hours. . Firing here does not directly ignite and react the molded material, but means that the material is carefully treated at a high temperature in a furnace. In particular, in the present invention, it is necessary to pay attention to this temperature control in order to give slow disintegration, and those that are fired at a high temperature, for example, 900 ° C. or more lose their slow disintegration, and become brittle when fired at less than 500 ° C. There is a risk of too much. The relationship between the firing temperature and the firing time is also related to the heat capacity of the firing furnace, and cannot be generally specified, but within the range of the temperature and time, the firing temperature is close to 500 ° C. When firing at a temperature, the firing time should be longer, and conversely, when firing at a higher temperature where the firing temperature is close to 800 ° C., the firing time should be shorter. From the viewpoint of balance.

  The antibacterial agent according to the present invention is characterized in that it has a property of gradually disintegrating when immersed in a liquid such as water. Furthermore, it is preferable to have a property of partially gradually disintegrating when immersed in a liquid such as water. As described above, the property of gradually disintegrating is referred to as “gradual disintegration” in the present invention. The effect of having such a property is as described later.

  The antibacterial agent formed as described above disperses the metal-supported inorganic compound and TiO2 in the liquid due to its slow disintegration without passing through a complicated process such as irradiation with ultrasonic waves when immersed in a liquid such as water. Furthermore, Ag ions and Cu ions can be eluted from the inorganic compound at a high concentration in the liquid, and excellent antibacterial performance can be exhibited. In addition, this antibacterial agent has a property of gradually disintegrating when immersed in water or the like, so that the metal-supported inorganic compound can be dispersed or used even in repeated use by replacing or supplementing only a solvent such as water. Ion release performance at high concentration can be maintained.

  Further, the antibacterial liquid according to the present invention is obtained by immersing the antibacterial agent of the present invention having the above-described slow disintegration property in a liquid such as water or an aqueous solution.

  As water in which the antibacterial agent is immersed, for example, water such as pure water, tap water, and well water can be used.

  In addition, the antibacterial liquid according to the present invention may be obtained by immersing the antibacterial agent of the present invention having the above-described slow disintegration in an aqueous alcohol solution, an aqueous solution in which other antibacterial and antibacterial components are dissolved, or other solutions. can get.

The solution is not particularly limited as long as Ag ions or Cu ions and TiO ₂ can exist, but by using saline as the solution, compared to the case of using water, The ion concentration, in particular, the elution amount of Ag ions and Cu ions from the dispersed metal-supported inorganic compound can be increased to about 3 to 5 times. In the case of using a saline solution, the NaCl concentration is preferably 0.25% by weight or more, more preferably 1.0% by weight or more, and further preferably 2.0% by weight or more. The ratio between the antibacterial agent and the liquid such as water is not particularly limited. For example, one molded body having an outer diameter of 15 mm as shown in FIG. It can be used by immersing to the extent.

  As a method for using the antibacterial agent and a method for producing an antibacterial solution, for example, a spray container 2 as shown in FIG. 2 is filled with the antibacterial agent 3 and a liquid 4 such as an appropriate amount of water or an aqueous solution. As the antibacterial liquid production | generation apparatus 1, it can be used by spraying the said antibacterial liquid on a target object. In addition, the antibacterial liquid has high safety by not containing an organic antibacterial agent and can be used for gargle.

The antibacterial liquid according to the present invention can increase the concentration of Ag ions and Cu ions and the TiO ₂ concentration in the liquid. As described above, the concentration of Ag ions, Cu ions and TiO _{2 in} the liquid can be increased because the antibacterial agent gradually disintegrates when immersed in water or other liquid, and Ag ions or Cu ions. This is because fine inorganic compounds containing particles such as antibacterial components and TiO ₂ are dispersed in the liquid. The antibacterial agent immersed in water or other liquid has the property of gradually disintegrating, as shown in FIG. 3, the fine inorganic compound 3 ′ is dispersed in the antibacterial liquid, and a part of the container 2 This can be confirmed by the phenomenon of depositing on the bottom 2a of the glass. By the way, an antibacterial liquid obtained by immersing an antibacterial agent having such a property of gradually disintegrating in a liquid such as water has an antibacterial component diffused in the liquid, so that Ag ions and Cu in the liquid The concentration of ions and TiO ₂ can be increased, and a high concentration can be maintained even in repeated use by exchanging or replenishing only a liquid such as water, resulting in a longer product life.

  In the antibacterial liquid production apparatus 1 using the spray type container 2, the tip of the liquid suction pipe 5 is positioned above the bottom 2 a of the container 2 in order to prevent clogging of the nozzle due to the collapsed antibacterial agent component. It is also a preferred embodiment to make the tip of the liquid absorption pipe 5 slanted.

  Furthermore, what is shown in FIG. 4 shows other embodiment of the antibacterial liquid production | generation apparatus concerning this invention using the spray type container, and as shown to Fig.4 (a), of the spray type container 2 is shown. A flange portion 5a is provided at the tip of the liquid absorption port side of the absorption tube 5, and after the cylindrical antibacterial agent 3 is inserted into the liquid absorption tube 3, this is shown in FIGS. 5 (b) and 5 (c). As shown in FIG. 5 (d), the antibacterial agent 3 collides with the inner surface of the container more than necessary as shown in FIG. 5 (d). It can be prevented from collapsing. Further, as described above, the antibacterial agent 3 is applied to the liquid absorption pipe 5 as a product set in the spray container 2 in a state in which it is prevented from collapsing due to collision with the inner surface of the container. It is only necessary to inject water or the like into the container 2, and it can be used conveniently without user trouble.

  Moreover, what is shown in FIG. 5 shows other embodiment of the liquid absorption pipe | tube 5 in the antibacterial liquid production | generation apparatus 1 which concerns on this invention. In this embodiment, a plurality of locking pieces 5b... Radially extending outward are provided at the liquid suction port side tip of the liquid suction pipe 5 of the spray type container. As in the case of the flange portion 5a, the cylindrical antibacterial agent 3 is inserted into the liquid absorption tube 5 and can be held at the tip.

  Furthermore, what is shown in FIG. 6 shows still another embodiment of the liquid suction pipe 5 in the antibacterial liquid production apparatus 1 using the spray type container 2. In this embodiment, a nozzle for spraying a lump of disintegrated antibacterial agent by providing a lattice 5c (see FIG. 6a) at the liquid suction port of the liquid suction pipe 3 or covering it with a nonwoven fabric 5d (see FIG. 6b). It is designed to prevent clogging. In this case, it goes without saying that the flange 5a and the locking piece 5b may be provided side by side.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in more detail, this invention is not limited to these Examples at all.

(1) Antibacterial agent production example 1
60% by weight of a metal-supported inorganic compound (Silver Ace, manufactured by Taihei Chemical Sangyo Co., Ltd.) (A), which is a material obtained by supporting 10% by weight of silver on a slightly soluble orthophosphate of two or more metals, Kibushi clay (B) 30% by weight, titanium dioxide (manufactured by Teika Co., Ltd., AMT-100) (C) 1% by weight, activated carbon powder (manufactured by Taihei Chemical Sangyo Co., Ltd., cocool SS (particle size 75-250 μm) as a fine combustible material (D) about 9% by weight) and (D) after kneading and forming into a cylindrical shape (outer diameter 15 mm, inner diameter 7 mm, height 15 mm) shown in FIG. By baking for about 2 hours at an ambient temperature of around 700 ° C., an antibacterial agent weighing about 2 g per piece was produced.

(2) Evaluation of antibacterial properties (Changes in silver ion concentration over time)
Put 500 ml of tap water in a container and add 1 antibacterial agent prepared in the above production example to 0 hour. Stir the antibacterial solution every 2 hours, sample 10 ml, and change silver ion elution over time. (N number = 3). The measurement was performed at room temperature using an ICP-AES spectrometer (“RIGAKU CIROS CCD”, manufactured by Rigaku Corporation). The results are shown in Table 1.

  As shown in Table 1, the silver ion concentration became 0.0873 ppm after 2 hours from the addition, continued to increase thereafter, and reached 0.2582 ppm after 18 hours.

(Silver ion concentration without water replacement)
500 ml of tap water was put in a container, and one antibacterial agent prepared in the above production example was further added. Without replacing the tap water, 10 ml was sampled every week, and the silver ion concentration was measured in the same manner as described above. In this operation, two samples A and B were measured as antibacterial agents. The results for sample A are shown in Table 2-1, and the results for sample B are shown in Table 2-2.

  As shown in Tables 2-1 and 2-2, in both Sample A and Sample B, the silver ion concentration continued to increase by about 0.3 ppm per week.

(Silver ion concentration when water is changed daily)
500 ml of tap water was put in a container, and one antibacterial agent prepared in the above production example was further added. The tap water was changed every day, 10 ml was sampled every week, and the silver ion concentration was measured in the same manner as described above. Using this operation as an antibacterial agent, measurement was performed for each of Sample C and Sample D. The results for sample C are shown in Table 3-1, and the results for sample D are shown in Table 3-2.

  As shown in Tables 3-1 and 3-2, it was revealed that silver ions having almost the same concentration as in the initial stage were eluted even after daily replacement for 4 weeks, that is, 28 times. Similar results were obtained for both Sample C and Sample D.

In addition, the change in the concentration of silver ions as described above is the slow disintegration of the antibacterial agent in water, that is, the surface gradually becomes brittle and gradually disintegrates, so that the silver supported on the inorganic compound is released as ions. At the same time, TiO ₂ is also released and dispersed in the liquid by slow disintegration.

(Antimicrobial test)
(1) Escherichia coli (E. coli), (2) Staphylococcus aureus (S. aureus), (3) P. perfuringens were applied to a standard agar medium, and obtained in the above production example The antibacterial liquid produced by immersing the antibacterial agent in water was sprayed 1 to 4 times. The results of observing the growth of bacteria after 72 hours are shown in FIGS.

  As shown in FIGS. 7 to 9, the antibacterial effect by spraying the antibacterial liquid was recognized against any of Escherichia coli, Staphylococcus aureus, and Pseudomonas aeruginosa.

(Effect of NaCl addition on silver ion concentration)
500 ml of tap water was put in a container, and one antibacterial agent prepared in the above production example was further added. After 24 hours, 10 ml was sampled (NaCl concentration 0% by weight), and then 5 g of NaCl was added so that the NaCl concentration became 1% (approximately the concentration of physiological saline). 10 ml was sampled 24 hours after the addition of NaCl, and the silver ion concentration was measured (n number = 3). The results are shown in Table 4.

  It was found that by adding NaCl, elution of silver ions was increased 3 to 5 times.

(Effect of NaCl concentration on silver ion concentration)
Table 5 shows the results of measuring the influence on the silver ion concentration when the NaCl concentration of the solvent was changed variously.

  It was revealed that elution of silver ions was promoted even at a NaCl concentration of 0.25 wt%. When the NaCl concentration was 2% by weight, rapid elution enhancement was observed.

(Silver ion concentration after sample centrifugation)
500 ml of tap water was put in a container, and one antibacterial agent prepared in the above production example was further added. Further, 10 g of NaCl was added so that the NaCl concentration was 2% by weight. The sample was sampled 24 hours later and centrifuged at 4 ° C. and 16000 rpm for 30 minutes. The results are shown in Table 6.

  In the presence of NaCl, silver ions become AgCl and may be precipitated. However, the silver ion concentration was not affected by centrifugation. From this, it is thought that it does not precipitate as AgCl.

(3) Antibacterial composition and firing conditions (Production Examples 2 to 7)
Using the same metal-supported inorganic compound (Saihei Chemical Sangyo Co., Ltd., Silver Ace) (A), Kibushi clay (B), titanium dioxide (C), and activated carbon powder (D) as in the above production example, Table 7 below A cylindrical antibacterial agent having a weight of about 2 g was produced in the same manner as in the above production example with the composition and firing conditions shown in FIG. The obtained antibacterial agent was immersed in 500 ml of tap water in a PET bottle, allowed to stand for 24 hours, and the bottle was shaken lightly. A sample was then taken, and the silver ion concentration was measured in the same manner as described above. The results are shown in Table 7.

  As shown in Table 7, the antibacterial agent which can produce | generate an antibacterial liquid with high silver ion release ability is obtained by baking the antibacterial composition of this invention at 500-800 degreeC for 2 to 8 hours.

(4) Use example The monitor test which used the antibacterial agent obtained by the said manufacture example 1 for the deodorization of a pet (dog, cat) was done. The evaluation results of the monitor for the antibacterial agent are shown in the following table. Table 8 shows the types of pets targeted, Table 9 shows the age, Table 10 shows the effect of each deodorant target, Table 11 shows the presence or absence of the effect, Table 12 shows the time until the effect appears, Table 13 shows the overall evaluation.

  From the results of Tables 8 to 13, 90% or more of the monitors answered that there is a deodorizing effect on pets, and the antibacterial agent according to the present invention and the antibacterial liquid produced therefrom are effective for deodorizing pets. I understand.

(A)-(e) is the perspective view and sectional drawing which respectively show the example of the antibacterial agent of this invention. The perspective view which shows the example of the antibacterial liquid production | generation apparatus of this invention. Schematic which shows a mode that the antibacterial agent of this invention disintegrates gradually. The other embodiment of the antibacterial liquid production | generation apparatus using a spray-type container is shown, (a)-(e) is a perspective view which shows the insertion procedure of an antibacterial agent, (d) is one of the containers after antibacterial agent insertion. FIG. The perspective view of the liquid absorption pipe | tube front-end | tip part which shows other embodiment of the antibacterial-liquid production | generation apparatus using a spray type container. (A), (b) is sectional drawing of the liquid-absorbing-pipe front-end | tip part which shows other embodiment of the antibacterial-liquid production | generation apparatus using a spray type container. The figure which shows the result of the antimicrobial test with respect to colon_bacillus | E._coli. The figure which shows the result of the antimicrobial test with respect to staphylococci. The figure which shows the result of the antimicrobial test with respect to Pseudomonas aeruginosa.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Antibacterial liquid production | generation apparatus 2 Spray type container 2a Container bottom 3 Antibacterial agent 3 'Particulate inorganic compound 4 Liquids, such as water 5 Liquid absorption pipe 5a Liquid absorption pipe flange 5b Liquid absorption pipe locking piece 5c Opening grid of pipe 5c Nonwoven fabric of opening of liquid absorption pipe

Claims (11)

  A metal-supporting inorganic compound (A) that supports at least one of Ag and Cu, clay (B) containing at least one of silica and alumina, titanium dioxide (C), and a fine combustible material ( An antibacterial agent characterized by being kneaded and molded after the composition comprising D), calcined and gradually disintegrating when immersed in water.   50 to 74% by weight of a metal-supported inorganic compound (A) formed by supporting at least one of Ag and Cu, 20 to 44% by weight of clay (B) containing at least one of silica and alumina, The antibacterial agent according to claim 1, which is obtained by kneading and molding a composition containing 1 to 10% by weight of titanium (C) and 5 to 10% by weight of a fine combustible material (D).   The antibacterial agent according to claim 1 or 2, which has a property of partially gradually disintegrating when immersed in water.   The antibacterial agent according to any one of claims 1 to 3, wherein the antibacterial agent is baked at an atmospheric temperature of 500 to 800 ° C for 2 to 8 hours.   The fine combustible material (D) is selected from the group consisting of powdered or granular synthetic polymer, powdered or granular natural wood material, powdered or granular seed, synthetic fiber, natural fiber, activated carbon fiber The antibacterial agent according to any one of claims 1 to 4, comprising at least one kind.   The antibacterial liquid obtained by immersing the antibacterial agent in any one of Claims 1-5 in a liquid.   The antibacterial liquid according to claim 6, wherein the liquid is water or an aqueous solution.   The antibacterial solution according to claim 7, wherein the aqueous solution is a saline solution.   The antibacterial liquid production | generation apparatus formed by filling the spray type container with the antibacterial agent and liquid in any one of Claims 1-5.   The antibacterial liquid generating device according to claim 9, wherein the liquid is water or an aqueous solution. The antibacterial liquid generating device according to claim 10, wherein the aqueous solution is a saline solution.