JP2006232623A - Indoor plaster composition - Google Patents

Abstract

The present invention provides an indoor plaster composition in which an antibacterial action and a deodorizing action due to the use of far-infrared rays simultaneously emitted with negative ions are increased by a photocatalytic material. SOLUTION: 1) A mixture of natural mineral powders containing rare elements, 2) A mixture containing natural mineral powders containing rare elements and either tourmaline powder or far-infrared ceramic powder. 3) a mixture containing a rare earth element-containing natural mineral powder and a photocatalytic functional material, and 4) a mixture containing a rare earth element-containing natural mineral powder and either a tourmaline powder or a far-infrared ceramic powder. And a photocatalytic functional material added and blended.
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Description

  The present invention relates to a plaster composition for indoor use, and provides antibacterial action and deodorant action to the plaster material by continuously maintaining negative ion emission and using far infrared rays that are simultaneously emitted, and further antibacterial action and deodorant action by photocatalysis. The present invention relates to an indoor plaster composition having an increased effect.

  Plaster is a painted wall using slaked lime as a binder, and its history has been widely used for outer walls and indoor walls from 5000 years ago. As the plaster material, slaked lime, quick lime cream, shell ash and the like are the main components, seaweed paste, methylcellulose, and the like are added as paste materials. The characteristics of stucco are excellent humidity control, prevention of condensation, heat insulation, nonflammability, and aesthetics, and have been useful. In recent years, it has been said that carbon dioxide absorbability, formaldehyde absorbability, antifungal properties, and antibacterial properties can be prevented as newly discovered functions. In recent years, interest in the air environment has increased greatly, and it has become an era when it is essential to remove odors and bacteria in human living spaces. In particular, many indoor building materials are made of chemical building materials. Due to the effects of formaldehyde and solvents from the chemical building materials, sick house syndrome often occurs and has become a social problem. Under such circumstances, plaster materials that do not contain malodorous substances are being reviewed as indoor wall materials.

On the other hand, as a method of removing malodor and antibacterial effect, many products that have been attracting attention and products using photocatalytic titanium dioxide have come to be seen in the market. As a method of generating negative ions, a method of generating electrons by electromechanically generating negative ions and a method of ionizing air using a rare element mineral containing a radioactive substance are known. In such a background, patents and applications have been made for plaster compositions, compositions having both antibacterial and deodorant properties of negative ions, and photocatalytic functional materials that can be deodorized and antibacterial by sunlight. Or sold on the market. Typical examples of these are as follows.
JP, 2004-2442271, A. Stucco containing baked animal bone powder. 2. The plaster according to 1, which contains any one or more of soft porous highly silicified silicate clay, diatomaceous earth, silica or bamboo charcoal. As a result, plaster has effects such as humidity control and temperature control, as well as adsorption and decomposition of chemical substances such as formaldehyde and toluene, and various fungi. A stucco composition for an inorganic board obtained by mixing Japanese Patent Laid-Open No. 08-0732531.100 parts by weight, 5 to 30 parts by weight of synthetic zeolite, and 50 to 120 parts by weight of water to obtain a stucco slurry, followed by drying treatment. 2. The plaster composition for inorganic boards, wherein the plaster slurry further contains 5 to 20 parts by weight of a kneading agent with respect to 100 parts by weight of the plaster. 3. A plaster composition for an inorganic board, wherein the synthetic zeolite is zeolite A type. 4). A stucco composition for an inorganic board, wherein the kneading agent contains a water-based acrylic resin. 5. An inorganic base material, and 1-4 non-inorganic board stucco compositions laminated on the base material. For this purpose, the hygroscopic property and the moisture releasing property are improved while maintaining the texture specific to plaster. Patent No. 3035279 Resin composition that emits far infrared rays at the same time as emitting a negative ion containing a polymer compound that is not easily charged with static electricity, a rare element, and at least one of tourmaline or far infrared radiation ceramics . Patent No. 3429469 Wood material, soil material, paper material, mortar material, resin sheet, water-based acrylic emulsion selected from polymer compounds that are not easily charged with static electricity, and minerals containing rare elements, and at least tourmaline or far-infrared rays A building material for indoor use, which emits far-infrared rays at the same time as releasing negative ions, which are partially or entirely coated or layered with a resin composition containing any one of ceramics. When several to several hundreds of nanometers of titanium oxide, which is called a photocatalyst, is exposed to ultraviolet rays of sunlight, electrons are excited by the photoelectric effect, electrons and holes are generated, and the electrons reduce oxygen in the air to superoxide ions. Holes oxidize surface moisture and turn them into hydroxyl radicals. The superoxide ion and hydroxyl radical exhibit strong oxidizing power, and when an organic substance adheres to the titania surface in this state, the superoxide ion decomposes the organic substance carbon and the hydroxyl radical takes hydrogen. Such a self-cleaning action is a mechanism that becomes an antibacterial action and a deodorizing action. However, the above-mentioned photocatalyst does not produce a photoelectric effect unless it is exposed to the ultraviolet rays of sunlight, and since it is an effect of the titanium surface, there is a major drawback that the effect of antibacterial action and deodorization action at a distance is not obtained at all. There was something.

  The problem to be solved in the present invention is said to be able to prevent deodorization and antibacterial properties as a function of stucco, but is not found in the literature or the like and has little effect. Currently, building materials for interior use have required formaldehyde, a causative agent of sick house syndrome, materials that deodorize solvents, and materials that can provide hygienic antibacterial properties. In addition, a material that promotes the antibacterial effect and the deodorizing effect has been required even at a remote place, which is a disadvantage of the photocatalyst.

  In view of the above problems, (1) mineral powders containing rare elements, (2) natural minerals containing rare elements, and mixtures containing either tourmaline or far-infrared ceramics, (3) rare elements (4) A mixture containing a mineral powder containing rare elements and either a tourmaline or a far-infrared ceramic, and a photocatalyst functional material added to the mixture. By mixing the mixture, its mixture of (1), (2), (3), (4) into the plaster material, the plaster wall construction for indoor use is the continuous emission of negative ions and the radiation of far infrared rays With the simultaneous action of, you can demonstrate healthy and comfortable action effect, antibacterial effect and deodorant effect, and further increase the antibacterial effect and deodorant effect with photocatalyst effect, and show the effect even in the place where sunlight does not hit and at night It reaches the plaster composition for interior found the versatility of functions of kill.

  In the present invention, the invention according to claim 1 is an indoor plaster composition that continuously releases negative ions in which a natural mineral powder containing rare elements is mixed with a plaster material, and has a deodorizing action and an antibacterial action. object. The invention according to claim 2 is a mixture containing a natural mineral powder containing rare elements and a tourmaline powder or a far-infrared ceramic powder in a stucco material, and releases negative ions continuously. At the same time, it emits far-infrared rays and has a deodorizing action and an antibacterial action. The invention according to claim 3 is an indoor plaster composition in which a photocatalytic functional material is added to a mixture obtained by mixing a natural mineral powder containing rare elements into a plaster material to increase the deodorizing action and the antibacterial action. The invention according to claim 4 further comprises adding a photocatalytic functional material to a mixture containing a natural mineral powder containing rare elements and a tourmaline powder or a far-infrared ceramic powder in a plaster material, It is an indoor plaster composition with increased odor and antibacterial effects.

  In the present invention, the stucco material is mainly composed of slaked lime, quick lime cream, shell ash, etc., and the paste material is seaweed, methyl cellulose, etc. A mixture of oil, paper, chemical fiber, etc. can be used depending on the purpose. As the above-mentioned plaster material, it is also the current situation that blended materials are commercially available depending on the purpose, and these can be used. For example, the trade name Johkabe and Tagawa Sangyo can be used.

  In the present invention, as minerals containing rare elements, there are ferrugsonite, monazite, xenotime, columbite, betajolite, samarsky stone, eucsenite, tantalum stone, uranium ore, thorium stone, rubber stone, gadolinite and the like. . Among these minerals, monazite is most preferable as a mineral that emits extremely weak radiation and does not adversely affect the human body. As the particle size of the natural ore, those crushed to 1 mm or less can be used. Most preferably, the powder is pulverized to an average particle size of 30 microns or less, which is beneficial in reducing the appearance of the construction surface and the production of negative ions. As said mixing | blending part number, 100 weight part or less can be mix | blended with respect to 100 weight part of stucco materials. Most preferably, the amount of 50 parts by weight or less is beneficial because it balances the beauty of the construction surface and the production of negative ions.

  In the present invention, as tourmaline, shoal tourmaline, lithium tourmaline, drabite tourmaline, rubellite tourmaline, pink tourmaline, indecolite, baraiba tourmaline, watermelon and the like can be used. As the particle size of the tourmaline, those pulverized from 0.1 micron to 1 mm can be used. Most preferably, an average particle size of 30 microns or less is beneficial for mixing. As said compounding part number, 100 weight part or less can be mix | blended with respect to 100 weight part of stucco materials. Most preferably, the amount of 50 parts by weight or less is beneficial because it balances the appearance of the construction surface and the generation of negative ions.

  In the present invention, a far-infrared ceramic that radiates far-infrared rays having a wavelength of 2 to 50 microns can be used as the far-infrared ceramic. As a far infrared ceramic component, a mixture containing two or more of alumina, silica, zirconia, sodium oxide, magnesium oxide, iron oxide, and the like can be used. The commercially available products include the product name Serajit and OK Trading, which are useful for amplifying negative ions and emitting far infrared rays. As said compounding part number, 100 weight part can be mix | blended with respect to 100 weight part of stucco materials. Most preferably, 50 parts by weight or less is beneficial in terms of the aesthetic appearance of the construction surface, humidity control, and the release of negative ions and far infrared rays.

  In the present invention, any of anatase-type titanium dioxide, brookite-type titanium dioxide, apatite-coated titanium dioxide, inorganic ceramic-containing titanium dioxide, and the like can be used as the photocatalytic functional material. As anatase type titanium dioxide and brookite type titanium dioxide particle size, those pulverized to 5 to 200 nm can be used. Most preferably, 6-30 nm is more beneficial for exciting electrons. As the apatite-coated titanium dioxide, it is possible to use the titanium dioxide coated with apatite, that is, calcium phosphate. As a commercial item, the brand name apatite covering titanium dioxide NSP-100 made by nano wave can be used, for example.

  Inorganic ceramic-containing titanium dioxide includes inorganic ceramic components such as silica, alumina, chromium oxide, zirconium oxide, zirconia, yttrium oxide, etc., or a synthetic ceramic containing two or more thereof, and also includes the above components. It is a natural mineral. As the above particle diameter, those having an average of 30 microns or less can be used. As a commercial item, the product name Lionite Lion make can be used, for example. As said mixing | blending part number, 100 weight part or less can be mix | blended with respect to 100 weight part of stucco materials. Most preferably, the amount of 50 parts by weight or less is beneficial in that it does not reduce the aesthetics of the construction surface, humidity control, and the production of negative ions.

  According to the present invention, (1) mineral powder containing rare elements, or (2) a mixture containing mineral powder containing rare elements and either tourmaline or far-infrared ceramic, or (3) rare A mixture of a mineral powder containing elements added with a photocatalytic functional material, or (4) a mixture of a mineral powder containing rare elements and either tourmaline or far-infrared ceramic, and further adding a photocatalytic functional material. Addition-blended mixture mixture stucco composition releases negative ions continuously, and at the same time provides a healthy comfortable space that emits far-infrared rays, deodorizing action and antibacterial action, and also photocatalytic action, In the place exposed to ultraviolet rays, it has a remarkable effect as an indoor plaster composition in which deodorizing action and antibacterial action increase.

  Hereinafter, the present invention will be described in detail with reference to examples.

  Tables 1 and 2 show the formulation of the examples.

漆喰材料として、市販品の城かべを使用した。遠赤外線セラミックとして、市販品のセラジットＡＬ−Ｆ９を使用した。光触媒機能材料として、市販品の光触媒二酸化チタン
ＰＣ−１０１ チタン工業製を使用した。表１及び表２の配合処方の所定量を配合した各々の混合物を、１０リットルの攪拌機で１時間攪拌して、実施例１，２，３，４，５，６の漆喰組成物を得た。実施例の試料の作成方法として、５０ｃｍ角、厚さ５ｍｍの型枠に、各々の実施例の漆喰組成物を流し込み、４８時間常温で乾燥、養生して、実施例１から６の漆喰板を作成した。

A commercially available castle wall was used as the plaster material. A commercially available Serajit AL-F9 was used as the far-infrared ceramic. As the photocatalytic functional material, a commercially available photocatalytic titanium dioxide PC-101 manufactured by Titanium Industry was used. Each mixture containing a predetermined amount of the formulation of Table 1 and Table 2 was stirred for 1 hour with a 10 liter stirrer to obtain the stucco compositions of Examples 1, 2, 3, 4, 5, and 6. . As a method for preparing the samples of the examples, the stucco composition of each example was poured into a 50 cm square and 5 mm thick mold, dried and cured at room temperature for 48 hours, and the stucco plates of Examples 1 to 6 were obtained. Created.

Ion measurement The ions of Examples 1, 2, 3, 4, 5, and 6 were measured. The sample size was 20 cm square. As an ion measurement method, an ion tester KST-900 manufactured by Kobe Denpa is used as a small ion measurement method, and the average number of produced negative ions and positive ions / cc for 3 minutes is measured in an atmosphere of room temperature 25 ° C. and humidity 60%. did. As the total ion measurement method, an air ion tester IC-1000 was used, and the average number of produced ions / cc for 3 minutes was measured for negative ions and positive ions in the same atmosphere. The far-infrared measurement was performed using a FTIR measuring instrument, JIR-E500, and the far-infrared emissivity at a sample temperature of 35 ° C. was measured. The results are shown in Table 3.

実施例のイオン測定の結果、実施例１〜６は、プラスイオンよりもマイナスイオンの方が、大量に多く生成したものとなった。一方、遠赤外線は、実施例２，３，５，６と同じく、高放射するものとなった。

As a result of the ion measurement of the examples, in Examples 1 to 6, a larger amount of negative ions was generated in a larger amount than positive ions. On the other hand, the far-infrared rays, as in Examples 2, 3, 5, and 6, were highly radiated.

Deodorization test As a deodorization test method, the detector tube method was used. As a test method, a sample of 5 cm square of Example and 600 ml of gas were injected into a 5 liter Tedlar bag, and the gas concentration after 1 hour was measured using a detector tube, and the malodor rate (%) was estimated. Formaldehyde and ammonia were used as gas types. 50 ppm as the initial concentration of formaldehyde. The initial concentration of ammonia was 100 ppm. As environmental conditions, two methods were used: (1) delight irradiation, (2) dark without illumination. The results are shown in Table 4 (1) Delight irradiation, and Table 5 (2) Dark without illumination. As apparent from the deodorization test, in Examples 1, 2, 3, 4, 5, and 6, formaldehyde was deodorized with high efficiency. Furthermore, the deodorizing power further increased due to the photocatalytic action at the time of delight irradiation.

抗菌試験
抗菌試験として、財団法人日本紡績検査協会で該試験を行ない、抗菌試験方法として、ＪＩＳ−Ｌ１９０２定量試験法を準拠した。試験菌株として、ＭＲＳＡ（耐性黄色ぶどう球菌）を使用した。環境条件として、（１）ディライト照射時、（２）照射無しの暗黒の２方法で行なった。その結果を、表６では、（１）ディライト照射時。表７では、（２）照無しの暗黒を示した。

Antibacterial test The antibacterial test was conducted by the Japan Spinning Inspection Association, and the JIS-L1902 quantitative test method was used as the antibacterial test method. MRSA (resistant Staphylococcus aureus) was used as a test strain. The environmental conditions were (1) during delight irradiation and (2) dark without irradiation. The results are shown in Table 6 as (1) Delight irradiation. Table 7 shows (2) darkness without illumination.

抗菌試験結果から明らかなように、実施例１，２，３，４，５，６は、殺菌活性値及び静菌活性値とも高い抗菌性が得られた。さらに、光触媒作用で、ディライト照射時では抗菌性がさらに増加することが明らかとなった。

As is clear from the antibacterial test results, Examples 1, 2, 3, 4, 5, and 6 showed high antibacterial properties in both the bactericidal activity value and the bacteriostatic activity value. Furthermore, it was revealed that the antibacterial activity is further increased by delight irradiation due to photocatalytic action.

Claims (4)

An indoor plaster composition characterized in that negative ions, in which natural mineral powders containing rare elements are mixed into a plaster material, are continuously released to exert a deodorizing action and an antibacterial action. It is a mixture containing natural mineral powder containing rare elements and either one of tourmaline powder or far-infrared ceramic powder in the stucco material, and emits far-infrared rays at the same time as releasing negative ions. An indoor plaster composition characterized by having a deodorizing action and an antibacterial action. An indoor plaster composition characterized by adding a photocatalytic functional material to a mixture obtained by mixing a natural mineral powder containing rare elements into a plaster material to increase the deodorizing action and antibacterial action. Add a photocatalytic functional material to a mixture containing natural mineral powder containing rare elements and either tourmaline powder or far-infrared ceramic powder to stucco material to increase deodorization and antibacterial effects. An indoor plaster composition characterized by that.