JP2006325762A - Bathroom with contaminant decomposing function - Google Patents
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- 239000000356 contaminant Substances 0.000 title abstract description 6
- 239000011941 photocatalyst Substances 0.000 claims abstract description 37
- 238000005286 illumination Methods 0.000 claims abstract description 19
- 230000005284 excitation Effects 0.000 claims description 16
- 239000003344 environmental pollutant Substances 0.000 claims description 12
- 231100000719 pollutant Toxicity 0.000 claims description 12
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- 238000003287 bathing Methods 0.000 claims description 4
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 10
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- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 6
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- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
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- NIPNSKYNPDTRPC-UHFFFAOYSA-N N-[2-oxo-2-(2,4,6,7-tetrahydrotriazolo[4,5-c]pyridin-5-yl)ethyl]-2-[[3-(trifluoromethoxy)phenyl]methylamino]pyrimidine-5-carboxamide Chemical compound O=C(CNC(=O)C=1C=NC(=NC=1)NCC1=CC(=CC=C1)OC(F)(F)F)N1CC2=C(CC1)NN=N2 NIPNSKYNPDTRPC-UHFFFAOYSA-N 0.000 description 1
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- GVHCUJZTWMCYJM-UHFFFAOYSA-N chromium(3+);trinitrate;nonahydrate Chemical compound O.O.O.O.O.O.O.O.O.[Cr+3].[O-][N+]([O-])=O.[O-][N+]([O-])=O.[O-][N+]([O-])=O GVHCUJZTWMCYJM-UHFFFAOYSA-N 0.000 description 1
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Abstract
Description
本願発明は、浴室に発生する水垢、湯垢、石鹸垢等の汚染物質を光触媒機能によって分解する浴室に関するものである。 The present invention relates to a bathroom that decomposes contaminants such as water scale, scale, and soap dust generated in the bathroom by a photocatalytic function.
浴室においては、入浴行為に伴い、水垢や湯垢、石鹸垢等の汚れ成分が発生し、床、壁、浴槽、カウンター等に付着する。これらの汚れ成分は、放置すると浴室の湿潤環境下にてカビ等を発生させる原因となるため、浴室においては頻繁な清掃が不可欠であり、利用者の負担となっている。 In bathrooms, dirt components such as scales, scales, and soap stains are generated during bathing and adhere to floors, walls, bathtubs, counters, etc. If these soil components are left untreated, they may cause mold and the like in a wet environment of the bathroom, so frequent cleaning is indispensable in the bathroom, which is a burden on the user.
そこで、浴室に用いられる部材（床材、壁材、天井材、浴槽、カウンター部材等）には清掃容易性が求められている。またカビや微生物の発生、増殖を抑制するための抗菌機能も求められてきている。 Therefore, members (floor materials, wall materials, ceiling materials, bathtubs, counter members, etc.) used in the bathroom are required to be easily cleaned. In addition, an antibacterial function for suppressing the generation and growth of molds and microorganisms has been demanded.
一方、浴室の暖房、乾燥機能を利用して、洗濯物を浴室で乾燥させるシステムが普及してきている。しかし太陽光の照射がない室内で洗濯物乾燥を行うと、洗濯物に微生物が増殖して乾燥後の衣類等が臭気を発することが知られている。従って、浴室乾燥機能を備えた浴室の場合には、臭気物質の分解機能を付与することも今後の課題である。 On the other hand, a system for drying laundry in the bathroom by using the heating and drying functions of the bathroom has become widespread. However, it is known that when laundry is dried in a room not exposed to sunlight, microorganisms grow on the laundry and clothes and the like after drying emit odor. Therefore, in the case of a bathroom having a bathroom drying function, it is a future problem to provide a function of decomposing odorous substances.
このような清掃容易性や抗菌機能あるいは臭気分解性を浴室部材に付与する方法の一つとして、光触媒を含有した層を浴室部材の最表面に適用する方法がある。酸化チタンに代表される光触媒は、一般に紫外線を吸収して触媒性能を発現し、触媒酸化作用によって有機系物質を分解することが知られている。例えば特許文献１には、光触媒性チタニアを含む層で被覆された浴室用部材が開示されており、この浴室用部材は、太陽光や室内照明によって光励起された光触媒性チタニアの作用によって汚れ成分が分解され、またカビや微生物が死滅あるいは増殖抑制されるようになっている。
特許文献１に記載されているような、光触媒作用を有する浴室用部材によって構成された浴室は、太陽光や浴室内照明が照射する領域の清掃容易性や抗菌性、臭気分解性を向上させることができる。しかしながら、浴室には、太陽光はもとより浴室内照明の光も照射しない箇所も多い。例えば、浴室カウンターの裏側やその下部の床、壁面の一部などである。 As described in Patent Document 1, a bathroom constituted by a member for a bathroom having a photocatalytic action improves the ease of cleaning, antibacterial properties, and odor decomposability of an area irradiated with sunlight or lighting in the bathroom. Can do. However, there are many places in the bathroom that do not irradiate light from the bathroom as well as sunlight. For example, the back side of a bathroom counter, the floor underneath it, and a part of the wall surface.
本願発明は、以上のとおりの従来技術における限界を解消し、浴室内照明の光が照射しにくい箇所の汚染物質をも光触媒機能によって効率よく分解することのできる浴室を提供することを課題としている。 The invention of the present application aims to provide a bathroom that can overcome the limitations in the prior art as described above and can efficiently decompose pollutants in places where it is difficult to illuminate the light in the bathroom by the photocatalytic function. .
本願発明の汚染物質分解機能付き浴室は、第１には、浴室用部材の表面が、励起波長端４００ｎｍ以上の可視光型光触媒で被覆されており、浴室内照明装置の光が直接照射しない浴室用部材表面に光照射する補助照明装置を備え、浴室内照明装置および補助照明装置のそれぞれの光によって可視光型光触媒を光励起させて浴室用部材表面の汚染物質を分解することを特徴としている。 In the bathroom with a pollutant decomposition function of the present invention, first, the surface of the bathroom member is covered with a visible light type photocatalyst having an excitation wavelength end of 400 nm or more, and the bathroom lighting device does not directly irradiate the bathroom. An auxiliary illumination device that irradiates light on the member surface is provided, and the visible light photocatalyst is photoexcited by the light of each of the in-bathroom illumination device and the auxiliary illumination device to decompose contaminants on the bathroom member surface.
本願発明の汚染物質分解機能付き浴室は、第２には、補助照明装置の光の３００nm〜励起波長端波長の範囲における照射強度積分値が、全照射強度積分値の９０％以上であることを特徴としている。 Secondly, in the bathroom with the pollutant decomposition function of the present invention, the integrated value of the irradiation intensity in the range of 300 nm to the excitation wavelength end wavelength of the light of the auxiliary lighting device is 90% or more of the total integrated irradiation intensity. It is a feature.
本願発明の汚染物質分解機能付き浴室は、第３には、補助照明装置が、非入浴時に手動または自動点灯することを特徴としている。 Thirdly, the bathroom with a pollutant decomposition function according to the present invention is characterized in that the auxiliary lighting device is turned on manually or automatically when not bathing.
本願発明の汚染物質分解機能付き浴室は、第４には、補助照明装置が、浴室付属設備に連動して自動点灯することを特徴としている。 The bathroom with a pollutant decomposition function according to the present invention is fourthly characterized in that the auxiliary lighting device is automatically turned on in conjunction with the bathroom accessory.
なお、本願発明において、「浴室用部材」とは浴室内に露出する部材であって、浴室の床、天井、壁面、浴槽、室内照明のカバー、浴室カウンター部材、浴室扉、浴室用鏡面、カラン、シャワー、窓を有する場合の浴室の窓枠、窓ガラス等である。 In the present invention, the “bathroom member” is a member exposed in the bathroom, and includes a bathroom floor, ceiling, wall surface, bathtub, indoor lighting cover, bathroom counter member, bathroom door, bathroom mirror surface, currant. In the case of having a shower, a window frame of a bathroom, a window glass and the like.
また「汚染物質」とは、水垢や湯垢、石鹸垢等の汚れ成分、カビや微生物、あるいはこれらを原因とする臭気物質等である。そしてこの汚染物質の「分解」とは、汚れ成分や臭気物質の分解のほか、カビや微生物の発生や増殖を防止または抑制する、あるいはカビや微生物を死滅、分解することを意味する。 “Contaminants” are dirt components such as scales, scales and soap stains, molds and microorganisms, or odorous substances caused by these. The “decomposition” of this pollutant means not only the decomposition of soil components and odorous substances, but also the prevention or suppression of the generation and growth of mold and microorganisms, or the destruction and decomposition of molds and microorganisms.
さらにこれらの汚染物質を光触媒機能によって分解する「可視光型光触媒」とは、紫外線だけでなく、蛍光灯はもちろん紫外線が含まれていない白熱灯や、ＬＥＤランプなどの室内照明の光（＝可視光）にも反応して光触媒機能を発揮できる物質である。 Furthermore, the “visible photocatalyst” that decomposes these pollutants by the photocatalytic function is not only ultraviolet light but also fluorescent light, as well as incandescent light that does not contain ultraviolet light, and light from indoor lighting such as LED lamps (= visible) It is a substance that can also react with light and exert its photocatalytic function.
さらに「励起波長端」とは、可視光型光触媒を励起させる光の最長波長を意味する。 Furthermore, the “excitation wavelength end” means the longest wavelength of light that excites the visible light type photocatalyst.
またさらに、「浴室内照明装置の光が直接照射しない浴室用部材表面」とは、例えば浴室カウンターの裏側や、その下方の床面、壁面等である。 Furthermore, “the surface of the bathroom member that is not directly irradiated with light from the lighting device in the bathroom” is, for example, the back side of the bathroom counter, the floor surface, the wall surface, and the like below.
本願発明におけるその他の定義や用語については、以下に詳しく説明する。 Other definitions and terms in the present invention will be described in detail below.
本願発明の汚染物質分解機能付き浴室においては、第１には、浴室内を構成する浴室用部材の表面が励起波長端４００ｎｍ以上の可視光型光触媒で被覆されているため、浴室内照明装置と補助照明装置の光によって光触媒が励起される。すなわち光触媒の励起によって、浴室用部材の表面には、例えばヒドロキシラジカルやスーパーオキサイドイオン等の活性酸素種が発生し、これら活性酸素種の強力な酸化作用によって、浴室内に付着した汚れ成分や臭気物質等を酸化分解することができる。また活性酸素種の強力な抗菌作用によって、カビや微生物の発生や増殖を抑制することができる。また、励起波長端４００ｎｍ以上の可視光型光触媒を使用しているため、蛍光灯に代表される通常の浴室内照明装置の光に含まれる未弱な紫外線および近傍の可視光領域の波長によっても前記の光触媒を励起することができる。さらに、補助照明装置の光によって、浴室内照明装置の光が直接照射しない浴室用部材表面の可視光型光触媒を励起することができるため、浴室内全体の清掃容易性、抗菌性および臭気分解性が大幅に向上する。簡単な清掃作業によって浴室内を常に清潔で無臭な状態に維持することが可能となり、清掃作業の省力化とともに、常に快適な入浴が可能となる。また、洗濯物を浴室内で乾燥させた場合には洗濯物に臭気が付着することがない。 In the bathroom with the pollutant decomposition function of the present invention, first, since the surface of the bathroom member constituting the inside of the bathroom is coated with a visible light type photocatalyst having an excitation wavelength end of 400 nm or more, The photocatalyst is excited by the light of the auxiliary lighting device. That is, the photocatalyst excitation generates active oxygen species such as hydroxy radicals and superoxide ions on the surface of the bathroom member. Due to the strong oxidizing action of these active oxygen species, dirt components and odors adhering to the bathroom are generated. Substances can be oxidatively decomposed. Moreover, generation | occurrence | production and proliferation of mold | fungi and microorganisms can be suppressed by the strong antibacterial action of a reactive oxygen species. In addition, since a visible light type photocatalyst having an excitation wavelength end of 400 nm or more is used, depending on the weak UV light contained in the light of a normal bathroom lighting device represented by a fluorescent lamp and the wavelength of the visible light region in the vicinity. The photocatalyst can be excited. In addition, the light from the auxiliary lighting device can excite the visible light photocatalyst on the surface of the bathroom member that is not directly irradiated by the light from the lighting device in the bathroom, so that the entire bathroom is easy to clean, antibacterial, and odor-degradable. Is greatly improved. A simple cleaning operation makes it possible to keep the bathroom clean and odorless at all times, saving labor in the cleaning operation and always allowing comfortable bathing. Further, when the laundry is dried in the bathroom, odor does not adhere to the laundry.
第２には、補助照明装置の光の３００〜励起波長端波長の範囲における照射強度積分値が、全照射強度積分値の９０％以上であることによって、補助照明装置の光が可視光型光触媒の励起波長に特化している。これによって、補助照明装置の光が極めて効率的に光触媒機能を発現させることが可能となる。 Second, the light intensity of the auxiliary illumination device in the range from 300 to the excitation wavelength end wavelength is 90% or more of the total illumination intensity integral value, so that the light of the auxiliary illumination device is visible light type photocatalyst. Specializing in the excitation wavelength. As a result, the light from the auxiliary lighting device can exhibit the photocatalytic function very efficiently.
第３には、補助照明装置が、浴室非使用時に手動または自動で点灯するようになっている。補助照明装置の光を前記のとおりの可視光型光触媒の励起波長に特化させた場合には、その波長は紫外線から近紫外線の領域に相当し、人体には好ましくない。このため、補助照明装置の点灯は、浴室の非使用時に行うことが可能となるようにすることによって、補助照明装置の光の人体への影響を排除することが可能となる。 Thirdly, the auxiliary lighting device is turned on manually or automatically when the bathroom is not used. When the light of the auxiliary illumination device is specialized to the excitation wavelength of the visible light type photocatalyst as described above, the wavelength corresponds to the region from ultraviolet to near ultraviolet, which is not preferable for the human body. For this reason, the auxiliary lighting device can be turned on when the bathroom is not in use, thereby eliminating the influence of the light of the auxiliary lighting device on the human body.
第４には、補助照明装置の点灯を、浴室付属装置に連動させることによって、補助照明装置を、浴室の非使用時に自動点灯させることが可能となる。 Fourthly, the auxiliary lighting device can be automatically turned on when the bathroom is not in use by interlocking the lighting of the auxiliary lighting device with the bathroom accessory device.
浴室用部材の表面を被覆する可視光型光触媒は、励起波長端が４００ｎｍ以上であり、可視光領域の照射光で光触媒機能を発現させるものを特段の制限なく使用することができる。例えば、酸素欠陥型酸化チタン、色素増感型酸化チタン、金属担持型酸化チタン等である。このような可視光型光触媒を浴室用部材の表面に被覆するには、例えば、可視光型光触媒を含む塗料を塗装するなど、公知の手段により行うことができる。 The visible light type photocatalyst that covers the surface of the bathroom member can be used without any particular limitation as long as the excitation wavelength end is 400 nm or more and the photocatalytic function is exhibited by irradiation light in the visible light region. For example, oxygen-deficient titanium oxide, dye-sensitized titanium oxide, metal-supported titanium oxide, and the like. The visible light photocatalyst can be coated on the surface of the bathroom member by a known means such as coating with a paint containing the visible light photocatalyst.
浴室内照明および補助照明は、前記の可視光型光触媒の触媒機能を励起することのでききる光を照射するものであればよく、例えば蛍光灯、白熱灯、ＬＥＤランプ等を使用することができる。 The lighting in the bathroom and the auxiliary lighting may irradiate light that can excite the catalytic function of the visible light type photocatalyst. For example, a fluorescent lamp, an incandescent lamp, an LED lamp, or the like can be used. .
ただし、補助照明装置は、その光が可視光型光触媒の励起波長に特化していることが望ましい。すなわち、３００ｎｍ〜励起波長端波長の範囲における照射強度積分値が、全照射強度積分値の９０％以上である光を照射できる照明装置である。すなわち、励起波長端以下の波長光を使用することは当然として、３００ｎｍに満たない波長光は低波長の紫外線であり、浴室用部材の表面やその塗装を劣化させる恐れがあり、好ましくない。前記範囲の波長光を有する照明装置の例としては、ブラックライトや発光ダイオードが挙げられる。 However, it is desirable that the auxiliary illumination device has its light specialized to the excitation wavelength of the visible light type photocatalyst. That is, the illumination device can irradiate light whose irradiation intensity integrated value in the range of 300 nm to the excitation wavelength end wavelength is 90% or more of the total irradiation intensity integrated value. That is, as a matter of course, light having a wavelength shorter than the excitation wavelength end is not preferable because light having a wavelength shorter than 300 nm is ultraviolet light having a low wavelength and may deteriorate the surface of the bathroom member or its coating. Examples of the illumination device having the wavelength light in the above range include a black light and a light emitting diode.
このような補助照明装置は、浴室用照明装置の光が直接照射せず、そのため浴室用照明装置の光によって可視光型光触媒の触媒機能が発現しにくい領域（例えば、浴室カウンターの裏側やその下部の床、壁面等）に光を照射することを主目的として設置される。例えばその設置位置は、浴槽エプロンの下部や浴室カウンターの下部などの１以上である。もちろん、この補助照明装置はそれら特定の領域だけでなく、浴室全体に光を照射するように設置されてもよい。 Such an auxiliary lighting device does not directly irradiate the light of the bathroom lighting device, and therefore the area where the catalytic function of the visible light photocatalyst is not easily expressed by the light of the bathroom lighting device (for example, the back side of the bathroom counter or the lower part thereof) The main purpose is to irradiate the floor, wall surface, etc.). For example, the installation position is one or more such as a lower part of a bathtub apron and a lower part of a bathroom counter. Of course, this auxiliary lighting device may be installed to irradiate light not only in those specific areas but also in the entire bathroom.
ただし、補助照明装置の光を前記のとおりの可視光型光触媒の励起波長に特化させた場合には、その波長は紫外線から近紫外線の領域に相当し、人体には好ましくない。このため、補助照明装置の点灯を、浴室の非使用時に行うことが好ましい。そのため補助照明装置の点灯スイッチは、浴室用照明装置の点灯スイッチとは独立させ、浴室非使用持に手動点灯させることができるようにすう。あるいは浴室非使用時に自動的に点灯するようにすることもできる。 However, when the light of the auxiliary illumination device is specialized to the excitation wavelength of the visible light type photocatalyst as described above, the wavelength corresponds to the region from ultraviolet to near ultraviolet and is not preferable for the human body. For this reason, it is preferable to turn on the auxiliary lighting device when the bathroom is not in use. Therefore, the lighting switch of the auxiliary lighting device is made independent of the lighting switch of the bathroom lighting device so that it can be manually turned on when the bathroom is not in use. Alternatively, it can be automatically turned on when the bathroom is not used.
補助照明装置を自動点灯さえるには、浴室付属設備に連動させ、この浴室付属設備からの信号が浴室非使用時であることを示した場合に補助照明装置を点灯させるようにすることができる。例えば、浴室用照明装置の消灯に連動させて、補助照明装置を一定時間、点灯させるようにすることができる。あるいは、浴室乾燥装置の作動に連動させて補助照明装置を点灯させてもよく、また浴室ドアの開閉検知信号を利用して補助照明装置を自動点灯させることもできる。 In order to automatically turn on the auxiliary lighting device, the auxiliary lighting device can be operated in conjunction with the bathroom accessory and when the signal from the bathroom accessory indicates that the bathroom is not in use. For example, the auxiliary lighting device can be turned on for a certain time in conjunction with the turn-off of the bathroom lighting device. Alternatively, the auxiliary lighting device may be turned on in conjunction with the operation of the bathroom drying device, or the auxiliary lighting device can be automatically turned on using a bathroom door open / close detection signal.
以下、実施例を示して本願発明をさらに詳細かつ具体的に説明するが、本願発明は以下の例によって限定されるものではない。 EXAMPLES Hereinafter, although an Example is shown and this invention is demonstrated further in detail and concretely, this invention is not limited by the following examples.
硝酸クロム（III）９水和物（Cr(NO3)3・9H2O）０．４部を９４．６部の水に溶解した後、紫外光型の光触媒であるアナターゼ型酸化チタン（商品名：ST-01、石原産業株式会社製）５部を加えてよく攪拌し、常温にて２４時間放置した。エバポレーターを用いて１００℃、２４時間の条件で水を蒸発させた後、得られた固形分を５００℃、２４時間の条件で焼成することによって、酸化チタン表面にクロムを担持した金属担持型の可視光型光触媒を得た。この光触媒の光吸収特性を分光光度計（商品名：U-4100形分光光度計、株式会社日立内テクノロジーズ製）を用いて測定したところ、吸収波長端は４３０ｎｍであった。 After dissolving 0.4 part of chromium (III) nitrate nonahydrate (Cr (NO3) 3 · 9H 2 O) in 94.6 parts of water, anatase-type titanium oxide (trade name) which is an ultraviolet photocatalyst : ST-01, manufactured by Ishihara Sangyo Co., Ltd.) was added and stirred well, and left at room temperature for 24 hours. After evaporating water using an evaporator at 100 ° C. for 24 hours, the obtained solid content was baked at 500 ° C. for 24 hours to obtain a metal-supported type in which chromium was supported on the titanium oxide surface. A visible light type photocatalyst was obtained. When the light absorption characteristic of this photocatalyst was measured using a spectrophotometer (trade name: U-4100 type spectrophotometer, manufactured by Hitachiuchi Technologies, Ltd.), the absorption wavelength end was 430 nm.
テトラエトキシシラン（商品名：エチルシリケート２８、コルコート株式会社製）３４部にメタノール６０部を加え、さらに水３部および0.01Ｎの塩酸３部を混合し、ディスパーを用いてよく混合し、６０℃恒温槽中にて２時間加熱することにより、無機系塗膜のレジンをなる有機ケイ素アルコキシドの加水分解物および部分加水分解物を得た。これに前記の金属担持型可視光型光触媒２０部を添加し、次いで全固形分が５％となるようにメタノールで希釈することによって、可視光型光触媒含有無機系塗料を得た。 60 parts of methanol is added to 34 parts of tetraethoxysilane (trade name: ethyl silicate 28, manufactured by Colcoat Co., Ltd.), 3 parts of water and 3 parts of 0.01N hydrochloric acid are mixed, and mixed well using a disper, 60 ° C. By heating in a thermostatic bath for 2 hours, a hydrolyzate and a partial hydrolyzate of an organosilicon alkoxide forming a resin of an inorganic coating film were obtained. To this was added 20 parts of the above-mentioned metal-supported visible light photocatalyst, and then diluted with methanol so that the total solid content was 5%, whereby a visible light photocatalyst-containing inorganic coating was obtained.
アルマイト板上に可視光型光触媒含有無機系塗料をスプレーで２０ｇ／ｍ２塗布し、１５０℃、1時間の条件で乾燥させることにより、最表面に可視光型光触媒を含有する塗膜を有するアルマイト板を得た。 An alumite having a coating film containing a visible light type photocatalyst on the outermost surface by applying an inorganic coating material containing a visible light type photocatalyst by spraying 20 g / m 2 on an anodized plate and drying it at 150 ° C. for 1 hour. I got a plate.
このアルマイト板を浴室の浴室カウンター下部の壁材にシリコンコーティング剤を用いて接着した。なお、アルマイト板を設置した場所は浴室用照明装置（蛍光灯装置）の光が、浴室カウンターに遮られて照射されない位置であることを確認した。 This anodized board was bonded to the wall material under the bathroom counter of the bathroom using a silicon coating agent. In addition, it confirmed that the place where the alumite board was installed is a position where the light of the bathroom lighting device (fluorescent lamp device) is not blocked by the bathroom counter.
浴室の浴槽エプロンにブラックライトを設置し、ブラックライトの光をアルマイト板に照射した。ブラックライトの光は、３００〜４５０ｎｍの範囲における照射強度積分値が、全照射強度積分値の９９％以上であることを、スペクトロラジオメーター（商品名：ＵＳＲ−４０Ｖ、ウシオ電機株式会社製）で確認した。またブラックライト点灯時に、アルマイト板表面における紫外線強度を紫外線強度計ＵＶＲ−２（TOPCON社製）に同社製受光部ＵＤ−３６を装着した状態で測定すると、平均０．６ｍＷ／ｃｍ２であった。 A black light was installed in the bath tub apron, and the anodized plate was irradiated with black light. For the light of black light, the spectroradiometer (trade name: USR-40V, manufactured by Ushio Electric Co., Ltd.) indicates that the integrated value of irradiation intensity in the range of 300 to 450 nm is 99% or more of the total integrated value of irradiation intensity. confirmed. In addition, when the black light was turned on, the ultraviolet intensity on the surface of the anodized plate was measured in a state where the UV light intensity meter UVR-2 (manufactured by TOPCON) was fitted with the light receiving unit UD-36 of the company, and the average was 0.6 mW / cm 2 .
浴室を一般的に使用状況にて３ヶ月間使用し、各使用後にブラックライトを３時間点灯させた（実施例１）。 The bathroom was generally used for 3 months in use, and the black light was turned on for 3 hours after each use (Example 1).
３ヶ月後、目視によって、アルマイト板の表面におけるカビの発生、微生物発生に伴うヌメリ等の生成を測定した。 Three months later, the generation of mold on the surface of the anodized plate and the production of slime etc. accompanying the generation of microorganisms were measured by visual observation.
また、可視光型光触媒を含有しない無機系塗料を塗布したアルマイト板を実施例１と同一位置に設置し、ブラックライトを照射して実施例１と同様に目視測定した（比較例１）。さらに、可視光型光触媒含有塗料を補膜したアルマイト板にブラックライトを照射しない条件（比較例２）および可視光型光触媒を含有しない塗料を塗膜したアルマイト板にブラックライト照射しない条件（比較例３）についても同様に目視測定した。 Moreover, the anodized board which apply | coated the inorganic type coating material which does not contain a visible light type photocatalyst was installed in the same position as Example 1, irradiated black light, and measured visually similarly to Example 1 (Comparative Example 1). Furthermore, the condition that the anodized plate coated with the visible light photocatalyst-containing paint is not irradiated with black light (Comparative Example 2) and the condition that the anodized plate coated with the paint not containing the visible light type photocatalyst is not irradiated with black light (Comparative Example) 3) was also measured visually.
その結果、可視光型光触媒含有の塗料を塗膜したアルマイト板にブラックライトを光照射した実施例１では、アルマイト板表面にカビおよびヌメリの発生は確認されなかった。これに対して、比較例１−３では、赤色のカビ発生と顕著な表面ヌメリが確認された。 As a result, in Example 1 in which black light was irradiated to the anodized plate coated with the visible light photocatalyst-containing paint, generation of mold and slime was not confirmed on the anodized plate surface. On the other hand, in Comparative Example 1-3, red mold generation and remarkable surface slime were confirmed.
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| JP2005151466A JP2006325762A (en) | 2005-05-24 | 2005-05-24 | Bathroom with contaminant decomposing function |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130082004A1 (en) * | 2011-09-29 | 2013-04-04 | Toto Ltd. | Water area equipment that can inhibit water scale formation |
| JP2013167047A (en) * | 2012-02-14 | 2013-08-29 | Toto Ltd | Water section apparatus capable of easily removing water stain |
| CN107854021A (en) * | 2016-09-21 | 2018-03-30 | Toto株式会社 | Floor cleaning device and bathroom between bathroom bathing |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20130082004A1 (en) * | 2011-09-29 | 2013-04-04 | Toto Ltd. | Water area equipment that can inhibit water scale formation |
| CN103030214A (en) * | 2011-09-29 | 2013-04-10 | Toto株式会社 | Water area equipment that can inhibit water scale formation |
| TWI473925B (en) * | 2011-09-29 | 2015-02-21 | Toto Ltd | A method for easily removing scale, and a water peripheral apparatus which can easily remove scale |
| JP2013167047A (en) * | 2012-02-14 | 2013-08-29 | Toto Ltd | Water section apparatus capable of easily removing water stain |
| CN107854021A (en) * | 2016-09-21 | 2018-03-30 | Toto株式会社 | Floor cleaning device and bathroom between bathroom bathing |
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