JP2000060952A - Deodorant and antibacterial filter material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a deodorant and antibacterial filter material that decomposes or removes odor molecules and resists to bacteria when interposed in ventilation facilities in the space of buildings for forced ventilation through it or installed in the space of buildings for natural ventilation through it. SOLUTION: The deodorant and antibacterial base material 1 consists of zeolite ore that has such emissivity of near infrared rays of a radiant wavelength from 2.7 to 3.2 μm and far infrared rays of a radiant wavelength from 5.0 to 7.4 μm as is larger by 0.8 or more than black bodies and that is ground at a maximum grain diameter of 1 mm and granulated into proper shape and size prior to calcined to have a specific surface are of 35 m2/g or more. The deodorant and antibacterial base material 1 is dispersed in a rock material 2 or between at least two layers of a rock material 2 or nonwoven fabric.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention provides deodorization and antibacterial effects in a highly hermetically-sealed building space such as a hotel, karaoke box, fitness club, etc. used by an unspecified number of users. A deodorant antibacterial filter material that can provide a comfortable, hygienic space.

[0002]

2. Description of the Related Art In recent years, not only facility buildings but also residential buildings have been required to be energy-saving and sound-insulating as well as fireproof and earthquake-resistant, and the hermeticity of these building spaces has been remarkably increased. By the way, since extremely diverse users frequently use the building spaces such as hotels, karaoke boxes, fitness clubs, etc., the food and drink, smoking, cosmetics, etc. that the users bring in their own body odors, etc. Not only is it placed in an unpleasant environment because odors are compounded and accumulated, but if left unattended, these complex unpleasant odors adhere to and permeate internal wall surfaces of buildings and interior materials, resulting in a permanent unpleasant environment. Furthermore, in addition to the high degree of airtightness, these building spaces are warm throughout the year, and in these building spaces food residues, skin and dandruff that fall off from the user with sufficient moisture due to water supply facilities, etc. Not only is it provided with favorable reproduction conditions for bacteria and mold fungi due to sweat, etc., but since the bacteria and mold fungi are constantly carried in by the user in large quantities, the carried-in bacteria and mold fungi are rapidly transferred. It breeds, and it is put in an extremely unhygienic environment where it causes allergies and asthma as well as spoilage of secretions from the fungus itself associated with this breeding and decay of food or food residues or a bad odor due to decay. In reality, the building space is absolutely small and the kitchen is
It is undeniable that there is a more unpleasant and unsanitary environment in the residential building space where the toilets and bathrooms are located close to each other and where the resident always lives.

Under the present circumstances, it has been proposed to eliminate the odor-containing air diffused and accumulated in the building space and to supply fresh air by actively ventilating the air. Exhaust and air supply means dissipate the heated air especially in winter and the cooled air in summer, so the heat energy consumption becomes enormous, and the supply and exhaust equipment must have an extremely large capacity. Although it will be requested and dust in the air will be removed, no measures can be taken against odors, let alone fungi that float or propagate in the building space, at all. As a matter of course, how to deal with such a problem in the residential building space remains unsolved. On the other hand, in recent years, it has been attempted to deodorize by adsorbing odorous molecules by interposing a filter using activated carbon having a large physical adsorption area in an air conditioner, but the filter using the activated carbon cannot deal with fungi at all. Not only that, when deodorizing, the adsorption capacity is rapidly reduced along with the adsorption of odor molecules, and the deodorizing effect is lost in a short period of time, although it is expensive, so that it has not been popularized.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of the above problems, and the present invention intervenes in a ventilation facility of a building space to perform forced ventilation or to place it at an appropriate position in the building space. Natural aeration by activating the water molecules in the air to oxidize and decompose by active oxygen or Penning ionization that accompanies the excitatory transfer, and eliminates the decomposition of odor molecules and bacteria such as bacteria and mycobacteria. An object of the present invention is to provide a deodorant antibacterial filter material capable of deodorizing and antibacterial by inhibiting the physiological function of cells.

[0005]

The technical means adopted by the present invention to solve the above-mentioned problems are oxidative decomposition action or excitation transfer by active oxygen created by effectively exciting water molecules in the air. In order to prevent the degradation and elimination of odorous molecules and the inhibition of physiological functions of fungal cells by the Penning ionization effect associated with water, its emission wavelength is the absorption resonance wavelength of water molecules, ie, near infrared rays of 2.7 to 3.2 μm and 5 .0
The electromagnetic wave emissivity in the far-infrared region of ˜7.4 μm can radiate with an emissivity of at least 0.8 or more as compared with the emissivity of a black body, and effectively adsorbs a wide variety of odor molecules. Zeolite ore is selected as a material having gas adsorbability, ion exchange property, or catalytic action from the above, and its radiative surface area ratio is increased in order to effectively radiate electromagnetic wave radiation of this zeolite ore,
And, in order to expand the adsorption area capable of adsorbing a large amount of odor molecules, the zeolite ore is once pulverized into fine powder and kneaded with water to be granulated into a required shape and size, and then subjected to calcination. A deodorant antibacterial base material is formed by gradually evaporating the contained water to form a large number of fine pores and maintaining the shape retention property for practical use.

Further, in order to efficiently excite water molecules mixed in the air by contacting the deodorant antibacterial base material or in the vicinity of the deodorant antibacterial base material, the ventilation resistance is small and the deodorant antibacterial base material is homogeneous. In order to be able to disperse and hold the fiber, a structure in which the fiber is dispersed and sandwiched inside a lock material formed by entangled with a required void density using a fiber that has been deformed with an appropriate fineness and length, Alternatively, a lock material or a non-woven fabric laminated between at least two layers of a lock material or a non-woven fabric, which is formed by intertwining to a required void density by using a filament that has an appropriate fineness and length and is deformed In addition, the deodorant antibacterial base material is uniformly dispersed and sandwiched.

[0007]

The present invention having the above-mentioned structure has the following operations. That is, the deodorant antibacterial base material emits near-infrared rays in the range of 2.7 to 3.2 μm and far-infrared rays of 5.0 to 7.4 μm in the radiation wavelength at least 0.8 or more as compared with the emissivity of a black body. It is made of a material having an emissivity of 1, and the material also retains gas adsorbability, ion exchange property, and catalytic action, and the material is once pulverized into fine powder and kneaded with water to obtain a desired shape. In addition, since a large number of fine holes are formed by granulation and calcination to a large size, a weak external temperature energy is absorbed and converted and re-radiated after a significant increase in the electromagnetic wave radiation surface area ratio. Since near-infrared and far-infrared electromagnetic waves are efficiently radiated, water molecules in the air that come into contact with or flow in the vicinity are effectively excited to activate singlet oxygen, superoxide, hydroxy radicals, hydrogen peroxide, etc. Oxygen When the odor molecules are created, they are instantly oxidatively decomposed and eliminated, and the physiological function of the microbial cells is inhibited, or the Penning ionization action associated with the excitation transfer causes the odor molecules to be decomposed and the physiological function of the microbial cells is inhibited.

Further, since the deodorant antibacterial base material is granulated and formed to have an extremely large specific surface area by calcination, even if a wide variety of odorous molecules are compounded, the gas adsorbing property, the ion exchanging property or the catalyst can be obtained. The odor molecules are efficiently and efficiently adsorbed in large amounts due to the mutual action of the odor molecules, and the adsorbed odor molecules are always decomposed and eliminated by the oxidative decomposition action and Penning ionization action. Maintained. Since the deodorant antibacterial base material is uniformly dispersed and sandwiched inside the lock material having a relatively coarse void density, or is homogeneously sandwiched between the layers of the lock material and the non-woven fabric, a large amount of ventilation causes a slight negative pressure. It can be distributed only by itself, and because the structure is entangled, the ventilation is dispersed in multiple directions, so if it is interposed in the ventilation equipment, water molecules in the air in the building space will be evenly excited within a short time. Deodorant and antibacterial.
In addition, just by placing it in an appropriate place in the building space,
Due to natural ventilation, deodorization and antibacterial effect will be done in the building space. Furthermore, since the deodorant antibacterial base material is granulated and calcined, its outer surface is rough and made of an inorganic material, so that it can be dispersed and held in the lock material or between the lock material and the non-woven fabric. The adhesive sandwiching and fixing can be easily performed with an appropriate adhesive, or the sandwiching clamping and fixing can be easily performed by an appropriate clamping pressure.

[0009]

EXAMPLES Examples of the present invention will be described below in detail with reference to the drawings. FIG. 1 is an explanatory view of the present invention in which a deodorant antibacterial base material is dispersed and sandwiched between lock materials. Since the material 1 excites water molecules in the air which is in contact with the deodorant antibacterial base material 1 or in the vicinity thereof to create an oxidative decomposition action by active oxygen or a Penning ionization action associated with excitation transfer, The absorption resonance wavelengths of 2.7 to 3.
It is necessary to efficiently re-radiate electromagnetic radiation in the near infrared region of 2 μm and far infrared region of 5.0 to 74 μm.
The energy related to this re-radiation is weak because it depends on the external temperature energy that is absorbed, and therefore, it is emitted with a high emissivity as much as possible. Materials having an emissivity of at least 0.8 are required.

By the way, ceramic materials containing silica, alumina, zirconia or titania as a main component are known as a material which absorbs external temperature energy and is excellent in electromagnetic wave re-radiation characteristics in the far infrared region. It is known that the emission characteristics in the near-infrared region can be improved by containing a trace amount of a transition element oxide such as cobalt oxide, titanium oxide, manganese oxide, nickel oxide or copper oxide. However, it should be noted that since the emission regions of the respective transition element oxides are relatively narrow, in order to expect the emission characteristics that cover the required near-infrared region, at least two kinds of transition element oxides are required. It is desired to contain the above, and a sufficient content is exhibited when the content is at most about 0.1 to 1.0% by weight. Incidentally, as a specific example of the component composition of a preferable material, silicon dioxide 69.9 is used.
% By weight, 12.7% by weight of aluminum oxide, 0.84% by weight of ferric oxide as a transition element oxide, and 0.1% by weight of titanium oxide.
8% weight ratio is mentioned.

On the other hand, the present invention realizes deodorization of unpleasant odors in which a very wide variety of odor molecules are compounded, and physical and scientific means are effective for deodorization of compounded unpleasant odors. Therefore, it is advantageous to use a material that has an adsorption area capable of adsorbing a large amount of odor molecules in addition to gas adsorbability, ion exchangeability, catalytic action, etc. Zeolite ore is selected as a material that meets the requirements.

However, the gas adsorbability, ion exchange property, catalytic activity, etc. retained by the zeolite ore as a raw material are the functions of the zeolite crystal itself originally contained in the zeolite ore, and the zeolite ore generally contains zeolite. Since the crystal is considered to be about 50 to 70%, in order to effectively exhibit its gas adsorbability, ion exchange property or catalytic action, the contact area of zeolite crystal with air, that is, the so-called specific surface area or adsorption area is increased. It is necessary to increase the radiative surface area of the zeolite ore in order to effectively excite water molecules after absorbing and converting weak heat energy. After crushing, it is granulated into the required shape and size and calcined.

When crushing the zeolite ore, the particle size is 1 mm or less at the maximum, and preferably the average particle size of the finely divided zeolite ore in the granulation is 600 μm.
The specific surface area can be increased to about 2 to 3 times by pulverizing so as to become the following, and pulverizing after pulverizing to such a particle diameter. When granulating, in order to achieve a uniform dispersion of the particle size of the finely pulverized zeolite ore, and to impart the viscosity to maintain the formability when granulating to the required shape and size. Water is added in an appropriate ratio and kneading is performed. The addition ratio of water in this case depends on the water content of the zeolite ore, the ratio of the clay content, or the crushed particle size distribution,
Moisture content 8%, Clay content 21%, Average particle size 600 μm
About 22% is a guideline for zeolite ore crushed into.

There are no particular restrictions on the kneading, and a kneading machine such as a ribbon blender is generally used, and there is no special restriction on the shape or size of the granulated product, and the shape is usually spherical or cylindrical. Those having a diameter of about 1 to 5 mm are used. In addition, there is no particular limitation on the granulation and molding means of the granulated product. Therefore, in general, in the case of a cylindrical product, an extrusion molding machine is used and a metal having a discharge port corresponding to the diameter of the cylindrical product is used. It is convenient to use a means for cutting into a required length while discharging from a mold, and for a spherical shape, rolling the shape cut into a cylindrical shape in a rotating container to make the shape spherical as a whole.

The granulated product thus granulated into the required shape and size retains the shape-retaining property that can withstand practical use.
Further, calcination is performed in order to effectively exhibit the gas adsorbing property, the ion exchanging property, the catalytic action, or to further increase the adsorption area of odorous molecules. That is, this calcination aims to maintain the shape of the whole granulated product by solidifying viscous clay component by water absorption, and to form a large number of fine through holes by gently evaporating the absorbed water. It is in. For this reason, if the calcination temperature is too low, the strength associated with the solidification of the clay component is not sufficiently created, so that the shape retention that can withstand practical use of the granulated product cannot be realized, but if the temperature becomes too high, The rapid evaporation of water does not result in the formation of a large number of fine pores and also results in the loss of ion exchange properties. Therefore, the temperature should be kept at a minimum of 250 ° C or higher and a maximum of 400 ° C or lower. is there. There is no special restriction on the calcination means, and the rotary kiln is suitable as a simple and efficient means. By such means, the deodorant antibacterial base material 1 having a required shape and size is prepared.

The deodorant antibacterial base material 1 prepared as described above is contacted with air in which odor molecules, fungi such as bacteria and fungi are mixed or floating, or is allowed to flow in a large amount in the vicinity of the building space. This is to create a comfortable and hygienic environment by deodorizing and antibacterial the interior in a short time. Therefore, the negative pressure so-called air resistance is small even when a large amount of air is distributed. It is necessary for the material 1 to be supported and fixed in a state in which it is uniformly dispersed in the air flow section. Therefore, as the preferable supporting and fixing means, those which are dispersed and sandwiched and fixed inside the lock member 2 as shown in FIG. 1 and the interlayer of the lock member 2 or the non-woven fabric 20 laminated in at least two layers as shown in FIG. It is possible to disperse, sandwich and fix. That is, the lock member 2 entangles the filaments 2A having an appropriate fineness and length and undergoing the required deformation for entanglement so as to maintain a desired void density 2B, and also appropriately. The deodorizing antibacterial base material 1 is obtained by adhering and fixing 2C of the respective entangled portions with the above adhesive, and naturally the void density 2B is dispersed and sandwiched.
The deodorant antibacterial base material 1 is dispersed and mixed at the time of forming the entanglement of the filament 2A, and the product 3 of the present invention is produced by such means.

As still another supporting and fixing means, as shown in FIG. 2, a lock member 2 or a filament 20A having an appropriate fineness formed in advance with a desired thickness and a void density 2B is used. A non-woven fabric 20 having a desired thickness, which is formed by cross-joining with each other, is used by laminating at least two layers, and the locking material 2 or the non-woven fabric 20 is laminated.
The product 3 of the present invention can also be formed by dispersing the deodorant antibacterial base material 1 between the layers 20C and by using an appropriate adhesive, or by sandwiching and fixing.

In such a case, the amount of the deodorant antibacterial base material 1 that is dispersed and sandwiched is determined by the relationship between the internal volume of the building space or the hermetically sealed space to be deodorized and antibacterial and the amount of air supplied from the ventilation equipment. The deodorant antibacterial base material 1 has a specific surface area of 1 g which is involved in adsorption of odorous molecules and electromagnetic wave radiation.
Since it is about 35 to 40 m ² per unit, specifically, when it is used by interposing it in a ventilation facility having an air supply amount of about 20 m ³ / min, the volume of the building space is 24
In a so-called tatami mat of 105 m ³ , it is desirable to disperse and sandwich 300 g or more. The present invention 3 in which the deodorant antibacterial base material 1 is dispersed and sandwiched between the lock members 2 is a fiber having a relatively large fineness, specifically, a fiber having a fineness of about 200 to 2000 denier because of its entanglement formation. A fiber 2 having a length of about 30 to 100 mm and deformed into an appropriate curl shape or a wave shape.
A is used, and its void density 2B is approximately 3 to 30 m.
Adhesive fixing 2C by entanglement so that it is formed with a void diameter of about m
Therefore, when a large amount of air is circulated with a small negative pressure to deodorize or antibacterial in a large building space, or when placed in a narrow building space or a closed space and naturally ventilated, deodorant or The present invention 3 is suitable for antibacterial purposes, etc. On the other hand, in the present invention 3 in which the deodorant antibacterial base material 1 is dispersed and sandwiched between the layers 20C of the locking material 2 and the non-woven fabric 20 to be laminated, the substantial void density is accompanied by the lamination. Is more dense, and particularly when the non-woven fabric 20 is used, fine fibers, specifically fine fibers having a denier of about several denier, are cross-bonded with a void diameter of 20 mm or less at the maximum. It is suitable when it has both deodorant and antibacterial properties due to relatively little ventilation and dust collecting property.

FIG. 3 is a diagram showing a mode of use when it is used by interposing it in a ventilation facility. Since the product 3 of the present invention is not intended for collecting dust, it is used by interposing it in an existing ventilation facility A. In order to supply the air from the fan C of the ventilation equipment provided with the required dust collecting filter B across the present invention 3, the air supply port D side is appropriately mounted and used. Further, when the deodorant and antibacterial effect is further achieved by natural ventilation, the product 3 of the present invention formed to have a void density 2B which facilitates natural ventilation as shown in FIG. However, from the viewpoint of enhancing the appearance aesthetics, it is more preferable to use it by enclosing it with a highly breathable non-woven fabric that is appropriately colored and patterned.

The following is a report of the deodorant and antibacterial test results using the present invention. The test site was a building space of 104.9 m ³ which is a closed space of a food processing plant located in Koto Ward, Tokyo, and In the circulation type ventilation equipment attached to the section,
A deodorant antibacterial base material having an average particle diameter of 5 mm is homogeneously 500 g in a lock material formed by entanglement with a height of 50 cm, a width of 50 cm and a thickness of 2 cm and an average void diameter of 3.8 mm. 22 m ³
The experiment was performed while circulating and ventilating at a rate of / min.

In the deodorization experiment, the concentrations of ammonia gas, methyl mercaptan gas and hydrogen sulfide gas component were measured without using the present invention, and the results are shown in Table 1. The measuring method was in accordance with the measuring method of Notification No. 9 of the Environmental Agency.

[0022]

[Table 1]

Next, the antibacterial experiment was carried out by a falling bacteria count test. The number of viable bacteria, coliforms and fungi in the building space before the use of the present invention and the number of living bacteria after the lapse of 12 hours of the use of the present invention were the same. The number of viable bacteria, the number of coliforms, and the number of fungi were examined using standard plate medium, desoxycholate medium, PDA medium and drop culture method, respectively.
The results are shown in Table 2.

[0024]

[Table 2]

[0025]

INDUSTRIAL APPLICABILITY As described above, the present invention allows the deodorant antibacterial base material to effectively excite water molecules in the air, near infrared rays having a wavelength of 2.7 to 3.2 μm and 5.0 to 7.4 μm. Not only does it have a radiation characteristic that it can emit electromagnetic waves in the far infrared region at an emissivity of at least 0.8 as compared with the emissivity of a black body, and since the deodorant antibacterial base material is made of zeolite ore, it is an odor molecule. The zeolite ore is pulverized into a fine powder having a maximum particle size of 1 mm or less, and is granulated into a desired shape and size while maintaining the gas adsorbing property, the ion exchanging property, and the catalytic action that efficiently adsorb the above. Moreover, since the specific surface area is increased to 35 m ² / g or more because it is calcined, the radiative surface area ratio related to electromagnetic wave radiation is also remarkably improved, and the adsorption area is substantially increased to 2 to 3 times. Therefore, the gas adsorption On exchangeable or catalysis so that the is more strongly exerted. The deodorant antibacterial base material is homogeneously dispersed and sandwiched in a lock material having a small air resistance, or is homogeneously dispersed and sandwiched between at least two layers of a lock material or a non-woven fabric, and the lock material is Since the non-woven fabric and the non-woven fabric have a structure in which filaments are entangled with each other, the odor molecules and fungi are dispersed and mixed or are dispersed in multiple directions when air that circulates or aerates, and as a deodorant antibacterial base material. The rate of contact with or flowing or aeration in the vicinity is significantly increased. Therefore, gas adsorption, ion exchange, catalytic action, etc. are effectively absorbed, and odor molecules are efficiently adsorbed, and water molecules in the air are also effectively excited. The odor molecules adsorbed by the active oxygen or Penning ionization that are created are immediately decomposed and erased, and the deodorant property is maintained for a long time, and the physiological function of bacterial cells is also improved. Since being harmed, antibacterial for a long time are also exhibited. In addition, active oxygen and Penning ionization related to deodorant and antibacterial properties are created, acted on and attenuated within an extremely short time by the excitation of water molecules, so that the safety is extremely high. It can be said that it is a deodorant antibacterial filter material.

[Brief description of drawings]

FIG. 1 is an explanatory diagram of the present invention in which a deodorant antibacterial base material is dispersed and sandwiched in a lock material.

FIG. 2 is an explanatory diagram of the present invention in which a deodorant antibacterial base material is dispersed and sandwiched between layers of a nonwoven fabric.

FIG. 3 is a diagram showing a mode of use when the present invention is used for ventilation equipment.

FIG. 4 is a view showing a use mode of the present invention by natural ventilation.

[Explanation of symbols]

1 Deodorant antibacterial base material 2 Lock material 2A filament 2B void density 2C adhesive fixing 20 non-woven fabric 20A filament 20B void density 20C layer 3 Invention product

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Kazuo Tokita             5-22 Okutsu, Kushiro-shi, Hokkaido Pacific Ocean             Inside Kushiro Mining Co., Ltd. (72) Inventor Masayuki Abe             5-22 Okutsu, Kushiro-shi, Hokkaido Pacific Ocean             Inside Kushiro Mining Co., Ltd. (72) Inventor Noriaki Kumazawa             5-22 Okutsu, Kushiro-shi, Hokkaido Pacific Ocean             Inside Kushiro Mining Co., Ltd. (72) Inventor Takashi Kobayashi             5-22 Okutsu, Kushiro-shi, Hokkaido Pacific Ocean             Inside Kushiro Mining Co., Ltd. F-term (reference) 4C080 AA03 BB02 BB05 CC05 CC08                       CC12 HH05 JJ03 JJ05 KK08                       LL10 MM04 NN01                 4D019 AA01 AA10 BB03 BC04 BC05                       BC06 BC07 BC10 BC20 CB04                 4F100 AC04C AC10A AC10B BA03                       BA06 BA10A BA10B DE01C                       DG15A DG15B EH90 EJ48C                       GB56 JC00C JD10C YY00C

Claims (2)

[Claims] 1. A zeolite whose near-infrared ray having an emission wavelength of 2.7 to 3.2 μm and far-infrared ray of 5.0 to 7.4 μm has an emissivity of at least 0.8 or more as compared with that of a black body. Deodorant antibacterial obtained by crushing ore to a maximum particle size of 1 mm or less, kneading it with water, granulating it into the required shape and size, and calcination to form a specific surface area of 35 m ² / g or more. The base material is homogeneously dispersed and sandwiched inside a lock material that is entangled with a required void density by a deformed filament having an appropriate fineness and length. Odor antibacterial filter material. 2. The deodorant antibacterial filter material according to claim 1, wherein a deodorant antibacterial base material is homogeneously dispersed and sandwiched between layers of a lock material or a non-woven fabric laminated in at least two layers or more.