JPH11114031A - Antimicrobial deodorant powder material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide an antimicrobial deodorant powder material which may be incorporated into a wide range of product stock, or may be deposited on product surfaces or may be used for printing the production surfaces with the material and are capable of safely exhibiting a high antimicrobial property and deodorant property safely for a long period by creating active oxygen by electromagnetic radiation. SOLUTION: This antimicrobial deodorant powder material is constituted by firing silicon oxide at a ratio of 25 to 35 wt.%, titanium oxide and manganese oxide respectively at 8 to 11 wt.% and silver oxide at 0.5 to 1.5 wt.% into a finely-ground base material consisting of aminosilicate ores of >=6.0 m<2> /g in its micropore surface area and >=100 meq in a base substituent capacity (meg/100 g) and pulverizing the mixture to the required grain size or the antimicrobial deodorant powder material consists of the component ratio of 5 to 10 wt.% zinc oxide in place of the silver oxide.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides excellent antibacterial properties by dispersing or admixing synthetic resins, cements, papers, metals and other products made of a wide variety of materials, or by attaching or printing on the outer surfaces of these products. The present invention relates to an antibacterial deodorant powder capable of retaining deodorant properties.

[0002]

2. Description of the Related Art In recent years, there has been a remarkable improvement in the standard of living and, on the other hand, an aging, nuclear family and a decrease in the birth rate, which has led to an increase in health orientation. Agricultural products or additive-free foods have been selectively purchased, and at the same time, hygienic functions have been demanded from living materials, stationery, toys, etc., as well as buildings such as dwellings, stores, offices, etc. In the facility space, there is a demand for environmental purification such as antibacterial, deodorizing, or dustproofing.

By the way, the antibacterial and deodorizing means in the current situation is as follows. In the antibacterial means, a chemical having a bactericidal and fungicidal property against bacteria and fungi is mixed into a product material or applied to the product surface to volatilize or disperse. Using a so-called organic antibacterial agent that achieves antibacterial action with drug killing by elution,
What uses a so-called oligodynamic effect in which a trace amount of metal ions hold silver or copper that retains a bactericidal action on an inorganic carrier, or supports titanium oxide that releases oxygen with absorption of ultraviolet energy on an inorganic carrier Examples thereof include a method using a so-called inorganic antibacterial agent which achieves antibacterial activity by oxidative decomposition of free oxygen, and a method using ozone gas or ultraviolet rays.

However, in the method using an organic antibacterial agent, an antibacterial effect is exerted by volatilization or elution of a drug killing component mixed in a product material or applied or printed on a product surface. Not only is the material limited, but it is extremely dangerous for those who are physically weak, such as infants and the elderly, as well as in enclosed spaces, and the methods using ozone gas and ultraviolet light are inherently dangerous. The range of use is very limited. Therefore, as a means for achieving antibacterial activity over a wide range and safely, the use of inorganic antibacterial agents is concentrated. Among these inorganic antibacterial agents, silver or copper is supported on an inorganic carrier to achieve antibacterial activity by an oligodynamic action. In such a case, an oxide film or the like is formed on the surface of silver or copper with the lapse of use, so that the creation of trace metal ions is hindered. Even those that carry titanium to achieve antimicrobial activity by oxidative decomposition by free oxygen, the creation of free oxygen is based on the absorption of the required ultraviolet energy, and the ultraviolet energy depends on where and where the product is used. Since the amount of free oxygen created naturally varies significantly due to the remarkable difference, not only does the antibacterial property fluctuate significantly, but also these oligodynamic and free Is due to iodine for the antibacterial effect of only creating surfaces like contact surface of creating surface or free oxygen in the trace metal ions, antimicrobial efficiency is also suffers very poor such problems.

On the other hand, deodorizing means include a method of masking odor molecules with an aromatic gas which is more fragrant than the odor emitted, and an adsorbent such as activated carbon having a large adsorption area capable of adsorbing a large amount of odor molecules. A method of decomposing odor molecules with ozone gas, a method of decomposing with an enzyme secreted by propagation of microorganisms, and the like. However, in the masking method, not only the aroma gas itself has a preference of dislike or dislike, but also the odor may lead to malodor, and in the method using an adsorbent,
Because the adsorption capacity decreases with the adsorption of odor molecules, deodorization can be expected only for a very short time, and the method using ozone gas is also dangerous and the use is limited to the specified range,
The microbial method is not only difficult to manage, but also has problems such as lack of rapid effect.

Consideration should be given to deodorization. Most of the odors are caused by the secretion liquid itself secreted by the propagation of bacteria and fungi, and by the spoilage of foods and the denaturation of organic substances accompanying the propagation of the fungi. Therefore, a deodorant excellent in deodorization is necessarily required to have an antibacterial function.

[0007]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances, and the present invention can be mixed with a wide range of product materials or applied or printed on the surface of a product. An object of the present invention is to provide an antibacterial deodorizing powder material which can exhibit high antibacterial properties and deodorizing properties over a non-contact surface safely and for a long period of time.

[0008]

The technical means adopted by the present invention to solve the above-mentioned problems is a near-infrared ray having a radiation wavelength of 2.5 to 3.2 .mu.m and 5.0 to 7.0.
A radiator capable of emitting an electromagnetic wave in the far-infrared region of 4 μm with an emissivity of at least 0.8 or more of the emissivity of a black body, and forming an adsorbent capable of adsorbing a large amount of odor molecules. And 45 to 55% of a fine powdery base material made of an aluminosilicate mineral having a micropore surface area of 6.0 m ² / g or more and a base substitution capacity (meq / 100 g) of 100 meq or more.
Sintered silicon oxide by 25 to 35% by weight, titanium oxide and manganese oxide by 8 to 11% by weight, and silver oxide by 0.5 to 1.5% by weight. The present invention is directed to a constitution of an antibacterial deodorant powder material which is crushed into a powder, or a constitution of an antibacterial deodorant powder material obtained by firing zinc oxide instead of silver oxide with a composition ratio of 5 to 10% by weight.

[0009]

The present invention having the above-described structure has the following functions. That is, the antibacterial deodorant powder material has a micropore surface area of 6.0 m ² / g or more and a base substitution capacity (meq / 100).
g) is composed of 45 to 55% by weight of a fine powdery base material composed of an alumina silicate mineral of 100 meq or more, so that the adsorption capacity of odor molecules is extremely large and not only a large amount of odor molecules are adsorbed, but also Particularly, nitrogen or ammonia gas is positively adsorbed by the base substitution property. In addition, the antibacterial deodorant powder material retains the ceramic properties when fired, and its main component is a fine powder base made of aluminosilicate mineral, which is composed of silicon oxide in a weight ratio of 25 to 35%. Since the emissivity of the electromagnetic wave in the far infrared region having a wavelength of about 5 μm or more due to such a composition component, transition element oxides composed of titanium oxide and manganese oxide are each composed of 8 to 11% by weight. The emissivity of the electromagnetic wave in the near-infrared region having a wavelength of about 1.5 to 4 μm is maintained at 0.8 or more of the emissivity of the black body. In addition, since the silver oxide is composed of 0.5 to 1.5% by weight or the zinc oxide is composed of 5 to 10% by weight, the electron transfer reaction is promoted even when the external temperature energy is weakly absorbed. Such electromagnetic wave radiation energy is increased. The emitted electromagnetic waves are transmitted regardless of whether they are inorganic or organic, and water molecules within the range of the electromagnetic wave radiation energy are resonantly excited. As a result, active oxygen having high reactivity and high oxidative decomposition power is created, and fungi are generated. Antibacterial and odor molecules are decomposed and eliminated due to the inhibition of physiology and the prevention of reproduction.

[0010]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS In the following, the present invention will be described in detail. The fine powdery substrate is formed by crushing an aluminosilicate mineral to a required particle size, and the reason why the alumina silicate mineral is selected. Has a very large micropore surface area capable of adsorbing a large amount of odor molecules, and has a base substitution property capable of positively adsorbing nitrogen and ammonia odor molecules, which are considered to be offensive odor molecules, and firing. In addition to providing radiation characteristics in the far-infrared region accompanying the ceramic property by the above, a material containing alumina or silica as a main component is desired.
Specific examples of the aluminosilicate mineral include zeolites, and zeolite and bentonite are particularly preferable. Zeolite is naturally produced or synthesized, and there is no problem in use. Further, the antibacterial deodorizing powder material of the present invention is dispersed and mixed in various product materials, or mixed with a coating agent or printing ink and then applied or printed on the product surface, and is used for resonance excitation of water molecules. In order to efficiently radiate electromagnetic waves in the infrared and far-infrared regions, it is necessary to form a large emission surface area ratio so that the particles are as fine as possible, preferably 10 μm in size.
3 μm as the fine powder base material because
It is desired that the thickness is formed to be preferably 1 μm or less.

[0011] The fine powdery base material thus obtained is composed mainly of 4
It is used at a weight ratio of 5 to 55%, and silicon oxide is blended at a weight ratio of 25 to 35%.
% By weight and aluminum oxide content is about 8 to 12%
It is possible to radiate an electromagnetic wave in the far-infrared region having a radiation ratio of about 5 μm or more from the present invention, which has been converted into ceramics by firing, at an emissivity of at least 0.8 or more with respect to the emissivity of the black body. It becomes possible. Since the particle diameter of the antibacterial deodorant powder material of the present invention formed by firing is at most 10 μm or less, it is desired to use silicon oxide having a particle diameter of at most 3 μm.

In the present invention, active oxygen is created by resonance-exciting water molecules, so that the other wavelength region for resonantly exciting water molecules, that is, the wavelength is 2.
Electromagnetic waves in the near infrared region of 5 to 3.2 μm also need to be emitted at an emissivity of 0.8 or more with respect to the emissivity of the black body. Therefore, as a means for shifting the far-infrared radiation region held by the ceramic material to the shorter wavelength side, a transition element oxide is blended.
Titanium oxide and manganese oxide are desirable for emitting an electromagnetic wave in the near-infrared region of 2 μm at a required emissivity, and these are mixed at 8 to 11% by weight, respectively. Of course, it is desired to use those transition element oxides having a particle size of 3 μm or less in view of the particle size of the antibacterial deodorant powder material of the present invention which is formed by firing.

In addition, it should be considered in the present invention that near-infrared and far-infrared electromagnetic radiation radiant energy related to the radiation is converted re-radiation accompanying absorption of external temperature energy,
Since the external temperature energy itself is weak, in order to effectively create active oxygen by electromagnetic wave radiation, it is required to convert the external temperature energy efficiently and radiate it effectively. By the way, since the conversion and re-emission into electromagnetic waves due to the absorption of temperature energy is due to the electron transfer reaction, in order to efficiently convert this, it is necessary to promote the electron transfer reaction. As a so-called catalyst, silver oxide or zinc oxide has been determined from many experiments relating to radiation efficiency.
Therefore, it is possible to mix silver oxide in a range of at least 0.5% by weight to a maximum of 1.5% by weight and zinc oxide in a range of at least 5% by weight to a maximum of 10% by weight. Suggested to increase efficiency.

In preparing the antibacterial deodorant powder of the present invention by blending the respective components at a required composition ratio, the components are sufficiently dispersed and mixed, and then molded into a required shape. In addition, it must be crushed to the desired particle size. For this reason, water is further added at a weight ratio of 160 to 200% with respect to the total amount blended in a required composition ratio, and is stirred or kneaded, whereby the components are bonded to each other due to the viscosity of the fine powdery base material as a main component. While the plasticity is enhanced, they are homogeneously dispersed and mixed, and formed into a required shape due to their plasticity.

After forming into a required shape, drying, firing,
It is produced by crushing, and there is no special limitation on such drying, firing or crushing, and a general means for producing ceramic powder may be used. That is, in the case of drying, baking, and crushing, for example, it is formed into a required shape and pre-dried by heating drying, vacuum drying, or the like, preferably until the residual water content becomes 5% or less. In the firing subsequent to the preliminary drying, the firing may be performed in such a manner that a large amount of micropores held by the fine powdery base material, which is a main component, is not lost and the components are firmly bonded to each other. Therefore, it is not necessary to perform sintering until the components of the general ceramic material are sufficiently melted, and at a temperature of approximately 790 to 900 ° C., although it varies depending on the composition ratio of the components and the particle size of the components. Sintering conditions of up to 5 hours are sufficient. After firing, use a rolling mill, vibrating ball mill, jet mill, or the like to obtain a maximum of 10 μm.
The antibacterial deodorant powder material of the present invention is obtained by crushing to a particle size of not more than m.

The results of the antibacterial test and the deodorant test using the antibacterial deodorant powder material of the present invention are shown below. The antibacterial deodorant powder material used in the test uses zeolite as an aluminosilicate mineral. Was crushed to an average particle size of 0.8 μm, and 30% by weight of silicon oxide having an average particle size of 0.3 μm, 9% by weight of titanium oxide and 9% by weight of manganese oxide, and 1% by weight, pure water was added at 180% by weight based on the total weight, and the mixture was stirred and kneaded to sufficiently disperse the mixture, and was further dried by vacuum drying until the residual moisture was reduced to 5%. After sintering at 3 ° C. for 3 hours, a material crushed to an average particle size of 2.7 μm was used.

The sample for the antibacterial test was prepared by mixing 0.1%, 0.3% and 3.0% by weight of the antibacterial deodorant powder material of the present invention with a polyvinyl chloride resin and molding it to a thickness of 50 μm. The resulting film materials are referred to as Sample 1, Sample 2, and Sample 3, respectively.
In addition, the composition without any compound was used as a control. Escherichia coli, Pseudomonas aeruginosa, and Staphylococcus aureus were used for the antibacterial test. The test solution was 10 ^6-7 / 2 ml of the test bacterial solution was added dropwise to a sterile petri dish, each sample piece was allowed to stand on the test bacterial solution, and 0.1 ml of the bacterial solution was taken out every elapsed time. After culturing, the viable cell count was read and the results are as shown in Table 1.

[0018]

[Table 1]

As a sample for the deodorizing test, a bag having a width of 20 cm and a length of 30 cm was prepared using the film material prepared in the antibacterial test, and a sample containing 0.1% by weight of the antibacterial deodorizing powder material of the present invention was used. The sample containing 0.3% by weight of 1, 0.3% was used as a sample 2, and the sample containing no 0.3% was used as a control. The method of the deodorization test is as follows: ammonia gas, methyl mercaptan gas adjusted to a predetermined concentration in advance,
Acetic acid gas and hydrogen sulfide gas were enclosed in the sample, and the residual concentration of each enclosed gas was measured at each elapsed time.The residual concentration was measured using a Kitagawa gas detector tube. It is as shown in Table 2.

[0020]

[Table 2]

[0021]

According to the present invention, the fine powdery base material occupying almost half of the composition has a micropore surface area of 6.0 m ² / g or more and a base substitution capacity (meq / meq / g).
100 g) is obtained by crushing an aluminosilicate mineral of 100 meq or more into a fine powder. Since the aluminosilicate mineral is fired in a cohesive bond structure without melting the components during firing, the composition component particles A large amount of odor molecules is adsorbed due to the formation of an extremely large odor molecule adsorption area in conjunction with the gap between the odor molecules, and a large amount of odor molecules are adsorbed. The excellent deodorizing effect is exhibited because it is adsorbed. According to the present invention, the near-infrared ray having a wavelength of 2.5 to 3.2 μm and the far-infrared ray having a wavelength of 5.0 to 7.4 μm, which resonate and excite water molecules with the absorption of external temperature energy,
The electromagnetic wave is radiated at an emissivity of at least 0.8 with respect to the emissivity of the black body, and this electromagnetic wave is transmitted and emitted irrespective of inorganic or organic substances, water molecules in the emission range are resonantly excited, and have high reactivity and high oxidative decomposition power. As active oxygen is created, antibacterial and odor molecules are inhibited and degraded by inhibiting the physiological function of bacteria and fungi and preventing the propagation of odor molecules. Adsorbability is maintained. Furthermore, in the present invention, antibacterial and deodorant are achieved by re-emission of electromagnetic waves accompanying absorption of external temperature energy, so that antibacterial deodorant having many features such as being able to be used almost semi-permanently and having extremely high safety is provided. It can be called a powder material.

Claims (2)

[Claims] 1. A pulverulent base material comprising an aluminosilicate mineral having a micropore surface area of 6.0 m ² / g or more and a base substitution capacity (meq of 100 g) of 100 meq or more is 45 to 5 minutes.
5% by weight, 25 to 35% by weight of silicon oxide, titanium oxide and manganese oxide are fired at a composition ratio of 8 to 11% by weight and silver oxide by 0.5 to 1.5%, and crushed to a required particle size. In addition, the emission wavelength is 2.5 to 3.2.
The emissivity in the near infrared region of μm and in the far infrared region of 5.0 to 7.4 μm is at least 0.8 to the emissivity of the black body.
An antibacterial deodorant powder material having the above emissivity. 2. 5 to 10% of zinc oxide instead of silver oxide
The antibacterial deodorant powder material according to claim 1, wherein the powder material is composed in a weight ratio.