JPH1043019A - Lavatory mirror with water droplet antisticking property - Google Patents

Lavatory mirror with water droplet antisticking property

Info

Publication number
JPH1043019A
JPH1043019A JP8301047A JP30104796A JPH1043019A JP H1043019 A JPH1043019 A JP H1043019A JP 8301047 A JP8301047 A JP 8301047A JP 30104796 A JP30104796 A JP 30104796A JP H1043019 A JPH1043019 A JP H1043019A
Authority
JP
Japan
Prior art keywords
water
exposed
outside air
mirror
contact
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP8301047A
Other languages
Japanese (ja)
Inventor
Mitsuyoshi Machida
町田　　光義
Makoto Hayakawa
信 早川
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Toto Ltd
Original Assignee
Toto Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Toto Ltd filed Critical Toto Ltd
Priority to JP8301047A priority Critical patent/JPH1043019A/en
Publication of JPH1043019A publication Critical patent/JPH1043019A/en
Pending legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F1/00—Tubular elements; Assemblies of tubular elements
    • F28F1/10—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses
    • F28F1/12—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element
    • F28F1/24—Tubular elements and assemblies thereof with means for increasing heat-transfer area, e.g. with fins, with projections, with recesses the means being only outside the tubular element and extending transversely
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F24—HEATING; RANGES; VENTILATING
    • F24F—AIR-CONDITIONING; AIR-HUMIDIFICATION; VENTILATION; USE OF AIR CURRENTS FOR SCREENING
    • F24F8/00—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying
    • F24F8/20—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation
    • F24F8/22—Treatment, e.g. purification, of air supplied to human living or working spaces otherwise than by heating, cooling, humidifying or drying by sterilisation using UV light
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F19/00—Preventing the formation of deposits or corrosion, e.g. by using filters or scrapers
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/02—Arrangements for de-icing; Arrangements for drying-out ; Arrangements for cooling; Arrangements for preventing corrosion
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01Q—ANTENNAS, i.e. RADIO AERIALS
    • H01Q1/00—Details of, or arrangements associated with, antennas
    • H01Q1/40—Radiating elements coated with or embedded in protective material
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/02—Coatings; Surface treatments hydrophilic
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F28—HEAT EXCHANGE IN GENERAL
    • F28F—DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OF GENERAL APPLICATION
    • F28F2245/00—Coatings; Surface treatments
    • F28F2245/04—Coatings; Surface treatments hydrophobic

Abstract

PROBLEM TO BE SOLVED: To provide a lavatory mirror which hardly loses the visibility of a reflected image even if it becomes dull since steam sticks to the surface or the splay of water from a shower falls on it. SOLUTION: A lavatory mirror has a surface layer on the surface of a base. The surface layer has such a structure that sections with a hydrophilic property which are so exposed that photocatalytic oxide particles may be brought into contact with outside air and sections with a water repellent property which are so exposed that water repellent fluorine-contained resin may be brought into contact with outside air are microscopicly dispersed on its surface and which has a contact angle of 90 deg. or above between the surface and water and which is substantially transparent.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【０００１】[0001]

【発明の属する技術分野】本発明は、洗面所や浴室で使
用される洗面用鏡に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a toilet mirror used in a bathroom or bathroom.

【０００２】[0002]

【従来の技術】洗面所や浴室の洗面用鏡が湯気が表面に
付着して曇ったり、シャワーの水しぶきを受けて、離散
した多数の水滴が表面に付着して、反射像の可視性を失
うことはしばしば経験されることである。2. Description of the Related Art Toilet mirrors in bathrooms and bathrooms are fogged by steam on the surface, and splashes from showers cause a large number of discrete water droplets to adhere to the surface and lose the visibility of the reflected image. Things are often experienced.

【０００３】[0003]

【発明が解決しようとする課題】しかしながら、このよ
うに洗面用鏡が反射像の可視性を失ってしまっては本来
の目的機能を果さない。そこで、本発明では、水滴が付
着しにくい表面を有する洗面用鏡を提供することを目的
とする。However, if the mirror for washbasin loses the visibility of the reflected image in this way, it does not fulfill its intended purpose. Therefore, an object of the present invention is to provide a wash mirror having a surface to which water droplets are unlikely to adhere.

【０００４】[0004]

【課題を解決するための手段】本発明では、上記課題を
解決すべく、基材表面に、光触媒性酸化物粒子が外気と
接するように露出した親水性を呈する部分と、撥水性フ
ッ素樹脂が外気と接するように露出した撥水性を呈する
部分の双方が表面に微視的に分散された構造を有し、か
つ表面の水との接触角が９０゜以上である実質的に透明
な表面層が形成されていることを特徴とする水滴付着防
止性を有する洗面用鏡を提供する。光触媒性酸化物粒子
が外気と接するように露出した親水性を呈する部分と、
撥水性フッ素樹脂が外気と接するように露出した撥水性
を呈する部分の双方が表面に微視的に分散された構造で
は、親水性表面と撥水性表面が隣接するため、親水性表
面になじみやすい親水性の付着物は隣接する撥水性部分
になじまない。逆に撥水性表面になじみやすい疎水性の
付着物は隣接する親水性部分になじまない。そのため、
親水性付着物も、疎水性付着物も部材表面に固着される
ことはなく、表面は清浄な状態に維持される。さらに、
光触媒が存在することにより、光触媒の光励起に応じて
光触媒性酸化物粒子が外気と接するように露出した親水
性を呈する部分は恒久的に親水性を維持するので、上記
親水性を呈する部分と撥水性を呈する部分の双方が表面
に微視的に分散された構造は維持される。すなわち、清
浄な状態、すなわち表面層製造時に表面の水との接触角
を９０゜以上にすると、その状態は光触媒の光励起に応
じて維持され、水滴が付着しにくくなる。According to the present invention, in order to solve the above-mentioned problems, a photocatalytic oxide particle is exposed on the surface of a base material so as to be in contact with the outside air and has a hydrophilic property, and a water-repellent fluororesin. A substantially transparent surface layer having a structure in which both water-repellent portions exposed to contact with the outside air are microscopically dispersed on the surface and the surface has a contact angle of 90 ° or more with water. The present invention provides a wash mirror having a water droplet adhesion preventing property, characterized in that a mirror is formed. A hydrophilic part exposed so that the photocatalytic oxide particles come into contact with the outside air,
In a structure in which both the water-repellent portion exposed to contact the outside air and the water-repellent fluororesin are microscopically dispersed on the surface, the hydrophilic surface and the water-repellent surface are adjacent to each other, so that the hydrophilic surface is easily adapted to the hydrophilic surface. Hydrophilic deposits do not blend into adjacent water repellent areas. Conversely, hydrophobic deposits that are easily adapted to the water-repellent surface do not adapt to adjacent hydrophilic portions. for that reason,
Neither hydrophilic deposits nor hydrophobic deposits are adhered to the member surface, and the surface is maintained in a clean state. further,
The presence of the photocatalyst causes the photocatalytic oxide particles to be exposed so as to be in contact with the outside air in response to the photoexcitation of the photocatalyst. A structure in which both of the portions exhibiting water are microscopically dispersed on the surface is maintained. That is, if the contact angle with water on the surface is set to 90 ° or more during the production of the surface layer during the production of the surface layer, the state is maintained in accordance with the photoexcitation of the photocatalyst, and water droplets hardly adhere.

【０００５】[0005]

【発明の実施の形態】本発明では、基材表面に、光触媒
性酸化物粒子が外気と接するように露出した親水性を呈
する部分と、撥水性フッ素樹脂が外気と接するように露
出した撥水性を呈する部分の双方が表面に微視的に分散
された構造を有し、かつ表面の水との接触角が９０゜以
上である実質的に透明な表面層が形成されている。洗面
用鏡基材には、裏面に反射コートを設けたガラス基材か
らなる鏡、裏面に反射コートを設けた透明プラスチック
からなる鏡、プラスチック、ガラス、金属等の基材表面
に反射コートを設けた鏡、プラスチック、ガラス、金属
等の基材表面に反射コートを設け、さらにその上に透明
なハードコートを設けた鏡、鏡面研磨した金属基材から
なる鏡、鏡面研磨した金属基材からなる鏡の表面に透明
なハードコートを設けた鏡、裏面に反射コートを設けた
透明プラスチック基材の上に透明なハードコートを設け
た鏡、等が好適に利用できる。基材と表面層との間に
は、基材との密着性向上等の目的で透明な中間層を設け
てもよい。DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, a photocatalytic oxide particle is exposed on the surface of a base material so as to come into contact with the outside air, and a hydrophilic portion is exposed. Are substantially microscopically dispersed on the surface, and a substantially transparent surface layer having a surface contact angle of 90 ° or more with water is formed. The mirror base for the washbasin has a mirror made of a glass base provided with a reflection coat on the back surface, a mirror made of a transparent plastic provided with a reflection coat on the back surface, and a reflection coat provided on the surface of a base material such as plastic, glass, and metal. Mirror, plastic, glass, metal, etc. provided with a reflective coat on the surface of the base material, and further provided with a transparent hard coat thereon, a mirror made of a mirror polished metal base, and a mirror polished metal base A mirror provided with a transparent hard coat on the surface of the mirror, a mirror provided with a transparent hard coat on a transparent plastic base material provided with a reflective coat on the back surface, and the like can be suitably used. A transparent intermediate layer may be provided between the substrate and the surface layer for the purpose of improving adhesion to the substrate and the like.

【０００６】表面層製造時に表面の水との接触角を９０
゜以上にするには、表面層における光触媒性酸化物と撥
水性フッ素樹脂との合計量に対する撥水性フッ素樹脂の
配合比を５０重量％以上、より好ましくは６０重量％以
上配合するとよい。When the surface layer is manufactured, the contact angle of the surface with water is set to 90.
In order to achieve the above value, the mixing ratio of the water-repellent fluororesin to the total amount of the photocatalytic oxide and the water-repellent fluororesin in the surface layer is preferably 50% by weight or more, more preferably 60% by weight or more.

【０００７】光触媒とは、その結晶の伝導帯と価電子帯
との間のエネルギーギャップよりも大きなエネルギー
（すなわち短い波長）の光（励起光）を照射したとき
に、価電子帯中の電子の励起（光励起）が生じて、伝導
電子と正孔を生成しうる物質をいい、光触媒性酸化物に
は、例えば、アナターゼ型酸化チタン、ルチル型酸化チ
タン、酸化亜鉛、酸化錫、酸化第二鉄、三酸化二ビスマ
ス、三酸化タングステン、チタン酸ストロンチウム等の
酸化物が好適に利用できる。光触媒の光励起に用いる光
源としては、室内照明を利用してもよいし、及び付帯設
備や携帯設備として、励起光を照射しうる光源を使用し
てもよい。使用する光源には、例えば、蛍光灯、白熱電
灯、メタルハライドランプ、水銀ランプ、キセノンラン
プ、殺菌灯等が好適に利用できる。光触媒の光励起に応
じて、基材表面の光触媒性酸化物粒子が外気と接するよ
うに露出した親水性を呈する部分が高度に親水化される
ためには、励起光の照度は０．００１ｍＷ／ｃｍ2以上
あればよいが、０．０１ｍＷ／ｃｍ2以上だと好まし
く、０．１ｍＷ／ｃｍ2以上だとより好ましい。[0007] A photocatalyst emits light (excitation light) having an energy (ie, a shorter wavelength) larger than the energy gap between the conduction band and the valence band of the crystal, and emits electrons in the valence band. A substance capable of generating conduction electrons and holes by excitation (photoexcitation). Photocatalytic oxides include, for example, anatase-type titanium oxide, rutile-type titanium oxide, zinc oxide, tin oxide, and ferric oxide. And oxides such as bismuth trioxide, tungsten trioxide and strontium titanate. As a light source used for photoexcitation of the photocatalyst, indoor lighting may be used, and as ancillary equipment or portable equipment, a light source capable of irradiating excitation light may be used. As the light source to be used, for example, a fluorescent lamp, an incandescent lamp, a metal halide lamp, a mercury lamp, a xenon lamp, a germicidal lamp and the like can be suitably used. In order for the photocatalytic oxide particles on the surface of the substrate to be exposed to the outside air and exhibit hydrophilicity in accordance with the photoexcitation of the photocatalyst, the illuminance of the excitation light is 0.001 mW / cm. The number is preferably 2 or more, but is preferably 0.01 mW / cm 2 or more, and more preferably 0.1 mW / cm 2 or more.

【０００８】撥水性フッ素樹脂には、ポリテトラフルオ
ロエチレン、ポリクロロトリフルオロエチレン、ポリヘ
キサフルオロプロピレン、テトラフルオロエチレン−ヘ
キサフルオロプロピレンコポリマー等が好適に利用でき
る。As the water-repellent fluororesin, polytetrafluoroethylene, polychlorotrifluoroethylene, polyhexafluoropropylene, tetrafluoroethylene-hexafluoropropylene copolymer and the like can be suitably used.

【０００９】表面層の膜厚は、０．４μｍ以下にするの
が好ましい。そうすれば、光の乱反射による白濁を防止
することができ、表面層は実質的に透明となる。さら
に、表面層の膜厚を、０．２μｍ以下にすると一層好ま
しい。そうすれば、光の干渉による表面層の発色を防止
することができる。また、表面層が薄ければ薄いほどそ
の透明度は向上する。更に、膜厚を薄くすれば、表面層
の耐摩耗性が向上する。The thickness of the surface layer is preferably set to 0.4 μm or less. Then, cloudiness due to irregular reflection of light can be prevented, and the surface layer becomes substantially transparent. Further, it is more preferable that the thickness of the surface layer be 0.2 μm or less. Then, it is possible to prevent the surface layer from being colored by light interference. Also, the thinner the surface layer, the better its transparency. Further, when the film thickness is reduced, the wear resistance of the surface layer is improved.

【００１０】表面層には、Ａｇ、Ｃｕ、Ｚｎのような金
属を添加することができる。前記金属を添加した表面層
は、表面に付着した細菌や黴を暗所でも死滅させること
ができる。A metal such as Ag, Cu, Zn can be added to the surface layer. The surface layer to which the metal is added can kill bacteria and fungi attached to the surface even in a dark place.

【００１１】表面層にはＰｔ、Ｐｄ、Ｒｕ、Ｒｈ、Ｉ
ｒ、Ｏｓのような白金族金属を添加することができる。
前記金属を添加した表面層は、光触媒の酸化還元活性を
増強でき、有機物汚れの分解性、有害気体や悪臭の分解
性を向上させることができる。Pt, Pd, Ru, Rh, I
A platinum group metal such as r or Os can be added.
The surface layer to which the metal is added can enhance the redox activity of the photocatalyst, and can improve the decomposability of organic contaminants and the decomposability of harmful gases and odors.

【００１２】光触媒性酸化物粒子が外気と接するように
露出した親水性を呈する部分と、撥水性フッ素樹脂が外
気と接するように露出した撥水性を呈する部分の双方が
表面に微視的に分散された構造を有するか否かは、以下
の方法により確認可能である。その１つの方法は以下の
ように行う。すなわち、まず、硝酸銀、乳酸銀、塩化白
金酸、塩化パラジウムなどのＡｇ、Ｐｔ、Ｐｄといった
原子番号の大きな金属を含む溶液を基材表面に塗布し、
基材表面に光触媒の励起光を照射して、Ａｇ、Ｐｔ、Ｐ
ｄといった原子番号の大きな金属を基材表面に析出させ
る。上記金属の析出反応は光触媒による上記金属の還元
作用に基づくので、このとき、金属は光触媒性酸化物粒
子が外気と接するように露出した親水性を呈する部分に
は付着するが、撥水性フッ素樹脂が外気と接するように
露出した撥水性を呈する部分には付着しにくい。次に、
走査型電子顕微鏡の反射電子像の観察により、濃淡（コ
ントラスト）が分散して生じていれば、光触媒性酸化物
粒子が外気と接するように露出した親水性を呈する部分
と、撥水性フッ素樹脂が外気と接するように露出した撥
水性を呈する部分の双方が表面に微視的に分散された構
造を有すると結論づけられる。他の観察方法としては、
反射電子像による濃淡の観察の代わりに、エネルギー分
散型Ｘ線分析装置（ＥＤＸ）、或いはエレクトロンプロ
ーブマイクロアナライザー（ＥＰＭＡ）等により、表面
の元素分析を行うようにしてよい。他の観察方法として
は、上記金属が銀のように有色であれば、反射電子像に
よる濃淡の観察の代わりに、光学顕微鏡により、色の観
察を行うようにしてよい。The photocatalytic oxide particles are exposed to the outside air and exhibit a hydrophilic property, and the water-repellent fluororesin is exposed to the atmosphere and exhibit water repellency. Whether or not it has the structure described above can be confirmed by the following method. One such method is performed as follows. That is, first, a solution containing a metal having a large atomic number such as Ag, Pt, or Pd such as silver nitrate, silver lactate, chloroplatinic acid, or palladium chloride is applied to the surface of the base material,
The substrate surface is irradiated with excitation light of a photocatalyst, and Ag, Pt, P
A metal having a large atomic number such as d is deposited on the substrate surface. Since the deposition reaction of the metal is based on the reduction action of the metal by the photocatalyst, at this time, the metal adheres to the hydrophilic portion exposed by the photocatalytic oxide particles in contact with the outside air, but the water-repellent fluororesin Is hardly adhered to a portion exhibiting water repellency exposed so as to be in contact with the outside air. next,
According to the observation of the reflected electron image of the scanning electron microscope, if the density (contrast) is dispersed, the photocatalytic oxide particles are exposed so as to be in contact with the outside air and exhibit a hydrophilic portion, and the water-repellent fluororesin It is concluded that both the water-repellent portions exposed to contact with the outside air have a structure microscopically dispersed on the surface. Other observation methods include:
Instead of observing the density using a backscattered electron image, elemental analysis of the surface may be performed by an energy dispersive X-ray analyzer (EDX) or an electron probe microanalyzer (EPMA). As another observation method, if the metal is colored such as silver, the color may be observed by an optical microscope instead of observing the density by a reflected electron image.

【００１３】次に、基材表面に、光触媒性酸化物粒子が
外気と接するように露出した親水性を呈する部分と、撥
水性フッ素樹脂が外気と接するように露出した撥水性を
呈する部分の双方が表面に微視的に分散された構造を有
する表面層が形成されている防汚性部材の製法について
説明する。この場合の製法は、基本的には、基材表面に
コーティング組成物を塗布し、コーティング組成物を基
材表面に固着せしめることによる。Next, on the surface of the base material, both a portion exhibiting hydrophilicity in which the photocatalytic oxide particles are exposed to the outside air and a portion exhibiting water repellency in which the water-repellent fluororesin is exposed in contact with the outside air A method for producing an antifouling member having a surface layer having a structure in which is dispersed microscopically on the surface will be described. The manufacturing method in this case is basically based on applying the coating composition to the surface of the substrate and fixing the coating composition to the surface of the substrate.

【００１４】ここでコーティング組成物は、光触媒粒子
と撥水性フッ素樹脂を必須構成要件とし、その他に水、
エタノール、プロパノール等の溶媒、フッ素樹脂の架橋
剤や、コーティング液の分散性を向上させる界面活性剤
などを添加してもよい。Here, the coating composition comprises photocatalyst particles and a water-repellent fluororesin as essential components, and water,
A solvent such as ethanol or propanol, a cross-linking agent for a fluororesin, or a surfactant for improving the dispersibility of a coating solution may be added.

【００１５】上記コーティング組成物の塗布方法として
は、スプレーコーティング法、ディップコーティング
法、フローコーティング法、スピンコーティング法、ロ
ールコーティング法、刷毛塗り、スポンジ塗り等の方法
が好適に利用できる。上記コーティング組成物は、フッ
素樹脂の溶融する３００℃以上の温度での熱処理、フッ
素樹脂の架橋剤を添加する場合には、架橋剤によりフッ
素樹脂が硬化する温度での熱処理、加圧処理、加圧処理
と上記熱処理との併用、衝撃圧力による固定等の方法で
固着できる。また、上記方法で固着させる前に、基材表
面をブラスト処理等して凹凸を設けるようにしてもよ
い。そうすれば、基材と表面層との固着性を向上させる
ことができる。As a method for applying the above coating composition, methods such as spray coating, dip coating, flow coating, spin coating, roll coating, brush coating, and sponge coating can be suitably used. The coating composition is heat-treated at a temperature of 300 ° C. or higher at which the fluororesin melts, and when a crosslinking agent for the fluororesin is added, heat treatment at a temperature at which the fluororesin is cured by the crosslinking agent, pressure treatment, and heat treatment. It can be fixed by a method such as a combination of pressure treatment and the above heat treatment, or fixing by impact pressure. Further, before fixing by the above method, the surface of the substrate may be blasted or the like to provide irregularities. Then, the adhesion between the substrate and the surface layer can be improved.

【００１６】[0016]

【実施例】【Example】

実施例１．アナターゼ型酸化チタンゾル（石原産業、Ｓ
ＴＳ−１１）と、ポリテトラフルオロエチレン（ＰＴＦ
Ｅ）粒子（ダイキン工業、Ｄ−１）と蒸留水を混合し、
３０分撹拌して得たコーティング液を、スプレーコーテ
ィング法にて１０ｃｍ角のソーダライムガラス基材上に
塗布し、３８０℃で３分熱処理して、アナターゼ型酸化
チタン粒子４重量部、ポリテトラフルオロエチレン粒子
６重量部からなる表面層を形成した。次に、このガラス
板の裏面に真空蒸着によりアルミニウムの反射コーティ
ングを形成して＃１鏡試料を得た。＃１試料の表面観察
により光触媒性酸化物粒子が外気と接するように露出し
た親水性を呈する部分と、撥水性フッ素樹脂が外気と接
するように露出した撥水性を呈する部分の双方が表面に
微視的に分散された構造を有する表面層が形成されてい
ることが確認された。次に、＃１試料の表面の水との接
触角を測定した。ここで水との接触角は接触角測定器
（協和界面科学、ＣＡ−Ｘ１５０）を用い、滴下後３０
秒後の水との接触角で評価した。その結果、水との接触
角は１２０゜と９０゜以上の値となり、＃１試料を傾け
ると水滴は転がりながら落下した。次に、＃１試料に紫
外線光源（三共電気、ブラックライトブルー（ＢＬＢ）
蛍光灯）を用いて試料の表面に０．５ｍＷ／ｃｍ2の紫
外線照度で約１日間紫外線を照射して＃２試料を得た。
＃２試料について水との接触角を測定した。その結果、
水との接触角は１１０゜と９０゜以上の値となり、＃２
試料を傾けると水滴は転がりながら落下した。Embodiment 1 FIG. Anatase type titanium oxide sol (Ishihara Sangyo, S
TS-11) and polytetrafluoroethylene (PTF
E) mixing the particles (Daikin Industries, D-1) and distilled water,
The coating liquid obtained by stirring for 30 minutes is applied on a 10 cm square soda lime glass substrate by a spray coating method, and heat-treated at 380 ° C. for 3 minutes to obtain 4 parts by weight of anatase type titanium oxide particles and polytetrafluorocarbon. A surface layer consisting of 6 parts by weight of ethylene particles was formed. Next, a reflective coating of aluminum was formed on the back surface of the glass plate by vacuum evaporation to obtain a # 1 mirror sample. In the surface observation of the # 1 sample, both the photocatalytic oxide particles exposed to be in contact with the outside air and exhibiting hydrophilicity, and the water-repellent fluororesin exposed in contact with the outside were exposed to water. It was confirmed that a surface layer having a visually dispersed structure was formed. Next, the contact angle of the surface of the # 1 sample with water was measured. Here, the contact angle with water was measured using a contact angle measuring device (Kyowa Interface Science Co., Ltd., CA-X150).
Evaluation was made based on the contact angle with water after 2 seconds. As a result, the contact angles with water were 120 ° and 90 ° or more, and when the # 1 sample was tilted, the water droplets fell while rolling. Next, an ultraviolet light source (Sankyo Denki, Black Light Blue (BLB)) was added to the # 1 sample.
A # 2 sample was obtained by irradiating the surface of the sample with ultraviolet light at an ultraviolet illuminance of 0.5 mW / cm 2 for about 1 day using a fluorescent lamp.
The contact angle with water was measured for the # 2 sample. as a result,
The contact angle with water became 110 ° and a value of 90 ° or more.
When the sample was tilted, the water droplets fell while rolling.

【００１７】[0017]

【発明の効果】本発明によれば、洗面用鏡表面は、水滴
が付着しにくくなるので、湯気が表面に付着して曇った
り、シャワーの水しぶきを受けた場合でも、反射像の可
視性を失いにくい。According to the present invention, the surface of the mirror for washing is hardly adhered with water droplets. Therefore, even when steam is adhered to the surface and fogged or the shower is splashed, the visibility of the reflected image is reduced. Hard to lose.

Claims (1)

【特許請求の範囲】[Claims] 【請求項１】 基材表面に、光触媒性酸化物粒子が外気
と接するように露出した親水性を呈する部分と、撥水性
フッ素樹脂が外気と接するように露出した撥水性を呈す
る部分の双方が表面に微視的に分散された構造を有し、
かつ表面の水との接触角が９０゜以上である実質的に透
明な表面層が形成されていることを特徴とする水滴付着
防止性を有する洗面用鏡。1. The photocatalytic oxide particles are exposed on the surface of the base material such that the photocatalytic oxide particles are exposed to the outside air and exhibit hydrophilicity, and the water-repellent fluororesin is exposed and exposed to the outside air. Has a structure that is microscopically dispersed on the surface,
A wash mirror having anti-drop adhesion properties, wherein a substantially transparent surface layer having a surface contact angle of 90 ° or more with water is formed.
JP8301047A 1996-05-31 1996-10-25 Lavatory mirror with water droplet antisticking property Pending JPH1043019A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP8301047A JPH1043019A (en) 1996-05-31 1996-10-25 Lavatory mirror with water droplet antisticking property

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
JP8-175386 1996-05-31
JP17538696 1996-05-31
JP8301047A JPH1043019A (en) 1996-05-31 1996-10-25 Lavatory mirror with water droplet antisticking property

Publications (1)

Publication Number Publication Date
JPH1043019A true JPH1043019A (en) 1998-02-17

Family

ID=37857701

Family Applications (28)

Application Number Title Priority Date Filing Date
JP8299443A Pending JPH1046989A (en) 1996-05-31 1996-10-23 Inner wall of antifouling property tunnel
JP8299445A Pending JPH1046522A (en) 1996-05-31 1996-10-23 Antifouling balustrade
JP8299446A Pending JPH1046527A (en) 1996-05-31 1996-10-23 Decorative sheet for antifouling road
JP8299444A Pending JPH1046526A (en) 1996-05-31 1996-10-23 Antifouling noise insulating wall
JP8299447A Pending JPH1046534A (en) 1996-05-31 1996-10-23 Antifouling guard fence
JP8299678A Pending JPH1043069A (en) 1996-05-31 1996-10-24 Stain preventing plate
JP8299679A Pending JPH1045431A (en) 1996-05-31 1996-10-24 Window glass for vehicle having both antifouling property and property of preventing sticking of drop of water
JP8299676A Pending JPH1044301A (en) 1996-05-31 1996-10-24 Building material for stain-proofing outer wall
JP8301047A Pending JPH1043019A (en) 1996-05-31 1996-10-25 Lavatory mirror with water droplet antisticking property
JP8301042A Pending JPH1045432A (en) 1996-05-31 1996-10-25 Mirror for vehicle having both antifouling property and property of preventing sticking of drop of water
JP8301045A Pending JPH1051014A (en) 1996-05-31 1996-10-25 Solar battery equipped with stainproof cover
JP8301044A Pending JPH1046530A (en) 1996-05-31 1996-10-25 Road mirror doubly furnished with antifouling property and droplet attachment preventive property
JP8302446A Pending JPH1046054A (en) 1996-05-31 1996-10-28 Antifouling wheel
JP8302448A Pending JPH1046952A (en) 1996-05-31 1996-10-28 Dirt preventive blind
JP8303613A Pending JPH1047890A (en) 1996-05-31 1996-10-29 Fins for heat exchanger having properties of preventing sticking of waterdrop and heat exchanger equipped with them
JP8303611A Pending JPH1050159A (en) 1996-05-31 1996-10-29 Insulator provided with stain-proofness and dew drop deposit preventive property
JP8306998A Pending JPH1044302A (en) 1996-05-31 1996-11-01 Stain-proofing membrane structure material
JP8311419A Pending JPH1043078A (en) 1996-05-31 1996-11-07 Bathtub
JP8311416A Pending JPH1043013A (en) 1996-05-31 1996-11-07 Heat insulating showcase with water droplet antisticking property
JP8311415A Pending JPH1043024A (en) 1996-05-31 1996-11-07 Pollution free dish and dish housing apparatus for the same
JP8323515A Pending JPH1050118A (en) 1996-05-31 1996-11-19 Pollution-proof luminaire
JP8323518A Pending JPH1043682A (en) 1996-05-31 1996-11-19 Stain-proof automobile body face
JP8324651A Pending JPH1050111A (en) 1996-05-31 1996-11-20 Pollution-proof lighting system for tunnel
JP8335174A Pending JPH1051214A (en) 1996-05-31 1996-11-29 Antenna with anti-attachment property against ice and snow
JP8335175A Pending JPH1046759A (en) 1996-05-31 1996-11-29 Roof material having ice-snow sticking preventive performance
JP8344586A Pending JPH1045433A (en) 1996-05-31 1996-12-09 Cover for motor-cycle instrument panel having property for preventing waterdrop sticking and motor-cycle instrument panel
JP8346741A Pending JPH1048578A (en) 1996-05-31 1996-12-10 Glass lens having preventing ability of sticking waterdrop
JP8354953A Pending JPH1045428A (en) 1996-05-31 1996-12-21 Window glass for construction

Family Applications Before (8)

Application Number Title Priority Date Filing Date
JP8299443A Pending JPH1046989A (en) 1996-05-31 1996-10-23 Inner wall of antifouling property tunnel
JP8299445A Pending JPH1046522A (en) 1996-05-31 1996-10-23 Antifouling balustrade
JP8299446A Pending JPH1046527A (en) 1996-05-31 1996-10-23 Decorative sheet for antifouling road
JP8299444A Pending JPH1046526A (en) 1996-05-31 1996-10-23 Antifouling noise insulating wall
JP8299447A Pending JPH1046534A (en) 1996-05-31 1996-10-23 Antifouling guard fence
JP8299678A Pending JPH1043069A (en) 1996-05-31 1996-10-24 Stain preventing plate
JP8299679A Pending JPH1045431A (en) 1996-05-31 1996-10-24 Window glass for vehicle having both antifouling property and property of preventing sticking of drop of water
JP8299676A Pending JPH1044301A (en) 1996-05-31 1996-10-24 Building material for stain-proofing outer wall

Family Applications After (19)

Application Number Title Priority Date Filing Date
JP8301042A Pending JPH1045432A (en) 1996-05-31 1996-10-25 Mirror for vehicle having both antifouling property and property of preventing sticking of drop of water
JP8301045A Pending JPH1051014A (en) 1996-05-31 1996-10-25 Solar battery equipped with stainproof cover
JP8301044A Pending JPH1046530A (en) 1996-05-31 1996-10-25 Road mirror doubly furnished with antifouling property and droplet attachment preventive property
JP8302446A Pending JPH1046054A (en) 1996-05-31 1996-10-28 Antifouling wheel
JP8302448A Pending JPH1046952A (en) 1996-05-31 1996-10-28 Dirt preventive blind
JP8303613A Pending JPH1047890A (en) 1996-05-31 1996-10-29 Fins for heat exchanger having properties of preventing sticking of waterdrop and heat exchanger equipped with them
JP8303611A Pending JPH1050159A (en) 1996-05-31 1996-10-29 Insulator provided with stain-proofness and dew drop deposit preventive property
JP8306998A Pending JPH1044302A (en) 1996-05-31 1996-11-01 Stain-proofing membrane structure material
JP8311419A Pending JPH1043078A (en) 1996-05-31 1996-11-07 Bathtub
JP8311416A Pending JPH1043013A (en) 1996-05-31 1996-11-07 Heat insulating showcase with water droplet antisticking property
JP8311415A Pending JPH1043024A (en) 1996-05-31 1996-11-07 Pollution free dish and dish housing apparatus for the same
JP8323515A Pending JPH1050118A (en) 1996-05-31 1996-11-19 Pollution-proof luminaire
JP8323518A Pending JPH1043682A (en) 1996-05-31 1996-11-19 Stain-proof automobile body face
JP8324651A Pending JPH1050111A (en) 1996-05-31 1996-11-20 Pollution-proof lighting system for tunnel
JP8335174A Pending JPH1051214A (en) 1996-05-31 1996-11-29 Antenna with anti-attachment property against ice and snow
JP8335175A Pending JPH1046759A (en) 1996-05-31 1996-11-29 Roof material having ice-snow sticking preventive performance
JP8344586A Pending JPH1045433A (en) 1996-05-31 1996-12-09 Cover for motor-cycle instrument panel having property for preventing waterdrop sticking and motor-cycle instrument panel
JP8346741A Pending JPH1048578A (en) 1996-05-31 1996-12-10 Glass lens having preventing ability of sticking waterdrop
JP8354953A Pending JPH1045428A (en) 1996-05-31 1996-12-21 Window glass for construction

Country Status (2)

Country Link
JP (28) JPH1046989A (en)
CN (1) CN1927474A (en)

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Also Published As

Publication number Publication date
JPH1051214A (en) 1998-02-20
JPH1045433A (en) 1998-02-17
JPH1046952A (en) 1998-02-17
JPH1043013A (en) 1998-02-17
JPH1050111A (en) 1998-02-20
JPH1050159A (en) 1998-02-20
JPH1043078A (en) 1998-02-17
JPH1044302A (en) 1998-02-17
JPH1046759A (en) 1998-02-17
JPH1045431A (en) 1998-02-17
JPH1043024A (en) 1998-02-17
JPH1043682A (en) 1998-02-17
JPH1045428A (en) 1998-02-17
JPH1051014A (en) 1998-02-20
JPH1047890A (en) 1998-02-20
CN1927474A (en) 2007-03-14
JPH1050118A (en) 1998-02-20
JPH1046989A (en) 1998-02-17
JPH1046534A (en) 1998-02-17
JPH1046526A (en) 1998-02-17
JPH1046054A (en) 1998-02-17
JPH1044301A (en) 1998-02-17
JPH1046527A (en) 1998-02-17
JPH1046530A (en) 1998-02-17
JPH1046522A (en) 1998-02-17
JPH1045432A (en) 1998-02-17
JPH1043069A (en) 1998-02-17
JPH1048578A (en) 1998-02-20

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