JP2019183023A - Cleaning antifouling agent and method - Google Patents
Cleaning antifouling agent and method Download PDFInfo
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- JP2019183023A JP2019183023A JP2018076551A JP2018076551A JP2019183023A JP 2019183023 A JP2019183023 A JP 2019183023A JP 2018076551 A JP2018076551 A JP 2018076551A JP 2018076551 A JP2018076551 A JP 2018076551A JP 2019183023 A JP2019183023 A JP 2019183023A
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Abstract
Description
本発明は、被処理物の表面を洗浄した後に防汚するための洗浄防汚剤及び洗浄防汚方法に関するものである。 The present invention relates to a cleaning antifouling agent and a cleaning antifouling method for antifouling after cleaning the surface of an object to be treated.
従来より、表面に付着した汚れを落とすとともに、表面に汚れが付着しにくくするために各種の洗浄防汚剤が利用されている。 Conventionally, various types of cleaning antifouling agents have been used to remove dirt adhered to the surface and to make it difficult for dirt to adhere to the surface.
たとえば、太陽光パネルや窓や液晶パネルなどのように屋内外で多用されているガラスの表面を洗浄した後に防汚するための洗浄防汚剤としてケイ酸アルカリを主成分とするものが開発されている（特許文献１参照。）。 For example, as a cleaning antifouling agent for the purpose of antifouling after cleaning the surface of glass frequently used indoors and outdoors, such as solar panels, windows, and liquid crystal panels, an alkali silicate as a main component has been developed. (See Patent Document 1).
ところが、ケイ酸アルカリを主成分とする洗浄防汚剤では、表面に汚れが付着するのを防止する防汚効果が低く、また、その防汚効果が長続きしないといった問題点があった。 However, the cleaning antifouling agent containing alkali silicate as a main component has a problem that the antifouling effect for preventing dirt from adhering to the surface is low and the antifouling effect does not last long.
一方、防汚効果が高く、その防汚効果が長続きする薬剤として酸化チタン水溶液が利用されている。 On the other hand, an aqueous solution of titanium oxide is used as a chemical having a high antifouling effect and a long-lasting antifouling effect.
しかし、酸化チタンを表面に付着させるためには、その表面を別の薬剤で洗浄する必要があり、作業が煩雑となるといった問題点があった。 However, in order to attach titanium oxide to the surface, it is necessary to clean the surface with another chemical, and there is a problem that the operation becomes complicated.
そこで、請求項１に係る本発明では、被処理物の表面を洗浄するとともに防汚する洗浄防汚剤において、酸化チタン結晶を含有する酸化チタン水溶液を主成分とすることにした。 Therefore, in the present invention according to claim 1, in the cleaning and antifouling agent for cleaning and antifouling the surface of the object to be processed, a titanium oxide aqueous solution containing titanium oxide crystals is a main component.
また、請求項２に係る本発明では、前記請求項１に係る本発明において、前記酸化チタン結晶がアナターゼ型酸化チタンであり、前記酸化チタン水溶液がペルオキソチタン酸水溶液であり、被処理物がガラスであることにした。 Further, in the present invention according to claim 2, in the present invention according to claim 1, the titanium oxide crystal is anatase type titanium oxide, the titanium oxide aqueous solution is a peroxotitanic acid aqueous solution, and the object to be treated is glass. Decided to.
また、請求項３に係る本発明では、被処理物の表面を洗浄するとともに防汚する洗浄防汚方法において、酸化チタン結晶を含有する酸化チタン水溶液を主成分とする洗浄防汚剤で被処理物の表面を磨くことにした。 Moreover, in this invention which concerns on Claim 3, in the washing | cleaning antifouling method of washing | cleaning and antifouling the surface of a to-be-processed object, it is processed with the washing | cleaning antifouling agent which has the titanium oxide aqueous solution containing a titanium oxide crystal as a main component. I decided to polish the surface of things.
また、請求項４に係る本発明では、前記請求項３に係る本発明において、前記被処理物の表面の硬度よりも低い硬度の酸化チタン結晶を用いることにした。 Further, in the present invention according to claim 4, in the present invention according to claim 3, a titanium oxide crystal having a hardness lower than the hardness of the surface of the workpiece is used.
また、請求項５に係る本発明では、前記請求項３又は請求項４に係る本発明において、前記酸化チタン結晶としてアナターゼ型酸化チタンを用い、前記酸化チタン水溶液としてペルオキソチタン酸水溶液を用い、被処理物としてガラスを用いることにした。 Further, in the present invention according to claim 5, in the present invention according to claim 3 or claim 4, anatase-type titanium oxide is used as the titanium oxide crystal, and a peroxotitanate aqueous solution is used as the titanium oxide aqueous solution. Glass was used as the processed material.
そして、本発明では、以下に記載する効果を奏する。 And in this invention, there exists an effect described below.
すなわち、本発明では、洗浄防汚剤に酸化チタン結晶を含有しているために、被処理物の表面に付着している汚れを酸化チタン結晶で良好に剥離することができるので洗浄効果を得ることができ、しかも、洗浄防汚剤に酸化チタン水溶液を含有しているために、被処理物の表面に酸化チタンの薄膜を形成することができるので防汚効果を得ることができる。 That is, in the present invention, since the cleaning antifouling agent contains titanium oxide crystals, the dirt adhering to the surface of the object to be treated can be peeled off with titanium oxide crystals, so that a cleaning effect is obtained. In addition, since the cleaning antifouling agent contains a titanium oxide aqueous solution, a titanium oxide thin film can be formed on the surface of the object to be treated, so that an antifouling effect can be obtained.
これにより、一つの洗浄防汚剤による一工程だけで被処理物の表面を洗浄するとともに防汚することができるので、被処理物の表面の洗浄防汚作業に要する労力や時間やコストを低減することができる。 As a result, the surface of the object to be processed can be cleaned and antifouled in a single step with one cleaning antifouling agent, reducing the labor, time and cost required for cleaning and antifouling work on the surface of the object to be processed. can do.
以下に、本発明に係る洗浄防汚剤及び洗浄防汚方法の具体的な構成について説明する。 Below, the concrete structure of the washing | cleaning antifouling agent and washing | cleaning antifouling method which concern on this invention is demonstrated.
本発明に係る洗浄防汚剤は、被処理物の表面を洗浄するとともに防汚することができる薬剤であり、酸化チタン結晶を含有する酸化チタン水溶液を主成分とする。 The cleaning antifouling agent according to the present invention is an agent capable of cleaning and antifouling the surface of an object to be processed, and contains a titanium oxide aqueous solution containing titanium oxide crystals as a main component.
そして、本発明では、この酸化チタン結晶を含有する酸化チタン水溶液を主成分とする洗浄防汚剤で被処理物の表面を磨くことで、被処理物の表面を洗浄するとともに防汚するものである。 In the present invention, the surface of the object to be treated is cleaned and antifouled by polishing the surface of the object to be treated with a cleaning antifouling agent mainly composed of an aqueous titanium oxide solution containing titanium oxide crystals. is there.
酸化チタン結晶としては、アナターゼ型（正方晶）、ルチル型（正方晶）、ブルッカイト型（斜方晶）の各種結晶構造の酸化チタンを用いることができる。 As the titanium oxide crystal, titanium oxide having various crystal structures of anatase type (tetragonal crystal), rutile type (tetragonal crystal), and brookite type (orthogonal crystal) can be used.
この中で、ブルッカイト型酸化チタンは、安価に大量に製造することが困難であるため、アナターゼ型酸化チタン又はルチル型酸化チタンの方が好ましい。また、アナターゼ型酸化チタンは、モース硬度が５．５〜６．０であるのに対して、ルチル型酸化チタンは、モース硬度が６．０〜７．０である。そのため、被処理物の表面のモース硬度に応じて使い分ける（被処理物の表面のモース硬度よりも低いモース硬度の酸化チタン結晶を用いるのが好ましい。）ことができるが、一般的に、ガラスや内外装材などの場合には、モース硬度の低いアナターゼ型酸化チタンが被処理物の表面を損傷させることなく洗浄防汚処理を行うことができる。 Among these, brookite-type titanium oxide is difficult to produce in large quantities at low cost, and therefore anatase-type titanium oxide or rutile-type titanium oxide is more preferable. Anatase-type titanium oxide has a Mohs hardness of 5.5 to 6.0, while rutile titanium oxide has a Mohs hardness of 6.0 to 7.0. Therefore, it can be properly used according to the Mohs hardness of the surface of the object to be treated (it is preferable to use a titanium oxide crystal having a Mohs hardness lower than the Mohs hardness of the surface of the object to be treated). In the case of an interior / exterior material or the like, cleaning and antifouling treatment can be performed without damaging the surface of the object to be treated with anatase-type titanium oxide having a low Mohs hardness.
洗浄防汚剤には、酸化チタン結晶を粉末にして酸化チタン水溶液に混合させる。酸化チタン結晶の粉末の粒径は、洗浄防汚剤の用途（被処理物の材質）や濃度などに応じて適宜設定することができる。 In the cleaning antifouling agent, titanium oxide crystals are powdered and mixed with an aqueous titanium oxide solution. The particle size of the titanium oxide crystal powder can be appropriately set according to the application (material of the object to be processed) and the concentration of the cleaning antifouling agent.
酸化チタン水溶液としては、酸化チタンの水溶液であればよいが、洗浄防汚剤とした場合に別に酸化チタン結晶を含有しているので洗浄防汚剤としての効能を安定させるために、非晶質（アモルファス）の酸化チタンの水溶液が好ましい。 The aqueous solution of titanium oxide may be an aqueous solution of titanium oxide, but when used as a cleaning antifouling agent, it contains amorphous titanium oxide crystals, so that it is amorphous in order to stabilize the effectiveness as a cleaning antifouling agent. An aqueous solution of (amorphous) titanium oxide is preferred.
また、酸化チタン水溶液は、被処理物の使用環境に応じて選択することができる。たとえば、主に屋外でのみ使用される被処理物の場合には紫外線でのみ活性化する酸化チタンの水溶液でもよい。また、主に屋内でのみ使用される被処理物の場合には可視光線でも活性化する酸化チタンの水溶液でもよい。さらに、被処理物に抗菌作用が要求される場合には銅イオンなどを担持させた酸化チタンの水溶液でもよい。 Moreover, the titanium oxide aqueous solution can be selected according to the use environment of a to-be-treated object. For example, in the case of an object to be treated mainly used outdoors, an aqueous solution of titanium oxide that is activated only by ultraviolet rays may be used. Further, in the case of an object to be processed mainly used indoors, an aqueous solution of titanium oxide that can be activated even by visible light may be used. Further, when an antibacterial action is required for the object to be treated, an aqueous solution of titanium oxide supporting copper ions or the like may be used.
本発明に係る洗浄防汚剤を用いて被処理物の表面を磨くと、洗浄防汚剤に含まれる酸化チタン結晶によって被処理物の表面を研磨することができ、被処理物の表面に付着する汚れを剥離し、これにより、被処理物の表面を洗浄することができる。 When the surface of the object to be processed is polished using the cleaning antifouling agent according to the present invention, the surface of the object to be processed can be polished by the titanium oxide crystals contained in the cleaning antifouling agent, and adhered to the surface of the object to be processed. The dirt to be removed is peeled off, whereby the surface of the object to be processed can be cleaned.
しかも、洗浄防汚剤に酸化チタン水溶液が含まれているために、酸化チタン水溶液が被処理物の表面で成膜して被処理物の表面に酸化チタンの薄膜を形成させることができ、これにより、被処理物の表面を防汚することができる。 Moreover, since the cleaning antifouling agent contains a titanium oxide aqueous solution, the titanium oxide aqueous solution can be formed on the surface of the object to be processed, and a titanium oxide thin film can be formed on the surface of the object to be processed. Thus, the surface of the object to be processed can be antifouled.
なお、酸化チタン結晶も被処理物の表面に残留しており、この酸化チタン結晶によっても被処理物の表面を防汚することができる。 Note that the titanium oxide crystal also remains on the surface of the object to be processed, and the surface of the object to be processed can be antifouled by the titanium oxide crystal.
本発明に係る洗浄防汚剤は、被処理物に応じて酸化チタン結晶や酸化チタン水溶液の組成を変更することができるが、特に、近年、太陽光パネルや窓や液晶パネルなどのように屋内外で多用されているガラスを被処理物とする場合には、モース硬度がガラスと近似又はガラスよりも低いことから、酸化チタン結晶としてアナターゼ型酸化チタンを用いるのが好ましく、また、非晶質で紫外光で活性することから、酸化チタン水溶液としてペルオキソチタン酸水溶液を用いるのが好ましい。 The cleaning and antifouling agent according to the present invention can change the composition of titanium oxide crystals and aqueous titanium oxide solutions depending on the object to be treated, but in recent years, especially in the case of solar panels, windows, liquid crystal panels, etc. When glass used extensively inside and outside is to be processed, it is preferable to use anatase-type titanium oxide as the titanium oxide crystal because the Mohs hardness is similar to or lower than that of glass. Therefore, it is preferable to use a peroxotitanic acid aqueous solution as the titanium oxide aqueous solution.
以上に説明したように、本発明では、洗浄防汚剤に酸化チタン結晶を含有しているために、被処理物の表面に付着している汚れを酸化チタン結晶で良好に剥離することができるので洗浄効果を得ることができ、しかも、洗浄防汚剤に酸化チタン水溶液を含有しているために、被処理物の表面に酸化チタンの薄膜を形成することができ、ぺルオキソチタン酸の場合には紫外線により結晶化するので防汚効果を得ることができる。 As described above, in the present invention, since the cleaning antifouling agent contains the titanium oxide crystal, the dirt adhering to the surface of the object to be treated can be peeled off with the titanium oxide crystal. Therefore, a cleaning effect can be obtained, and since a titanium oxide aqueous solution is contained in the cleaning antifouling agent, a titanium oxide thin film can be formed on the surface of the object to be treated. Is crystallized by ultraviolet rays, so that an antifouling effect can be obtained.
これにより、一つの洗浄防汚剤による一工程だけで被処理物の表面を洗浄するとともに防汚することができるので、被処理物の表面の洗浄防汚作業に要する労力や時間やコストを低減することができる。 As a result, the surface of the object to be processed can be cleaned and antifouled in a single step with one cleaning antifouling agent, reducing the labor, time and cost required for cleaning and antifouling work on the surface of the object to be processed. can do.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128110A (en) * | 1996-11-01 | 1998-05-19 | Asahi Glass Co Ltd | Photocatalyst composition and its forming agent |
| JP2004113883A (en) * | 2002-09-25 | 2004-04-15 | Katsunori Kubota | Method of imparting photocatalyst function and other catalyst functions, and washing and polishing solution having imparting properties of catalyst functions |
| JP2006045043A (en) * | 2004-08-02 | 2006-02-16 | Network:Kk | Method for manufacturing glass sheet coated with thin film of titanium oxide or mirror by synthesis of peroxotitanic acid solution and peroxo-modified anatase sol |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10128110A (en) * | 1996-11-01 | 1998-05-19 | Asahi Glass Co Ltd | Photocatalyst composition and its forming agent |
| JP2004113883A (en) * | 2002-09-25 | 2004-04-15 | Katsunori Kubota | Method of imparting photocatalyst function and other catalyst functions, and washing and polishing solution having imparting properties of catalyst functions |
| JP2006045043A (en) * | 2004-08-02 | 2006-02-16 | Network:Kk | Method for manufacturing glass sheet coated with thin film of titanium oxide or mirror by synthesis of peroxotitanic acid solution and peroxo-modified anatase sol |
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