JP7777302B2 - Paint additives, coating film formation methods - Google Patents
Paint additives, coating film formation methodsInfo
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- JP7777302B2 JP7777302B2 JP2021189283A JP2021189283A JP7777302B2 JP 7777302 B2 JP7777302 B2 JP 7777302B2 JP 2021189283 A JP2021189283 A JP 2021189283A JP 2021189283 A JP2021189283 A JP 2021189283A JP 7777302 B2 JP7777302 B2 JP 7777302B2
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Description
本発明は、水性塗料に抗ウイルス性を付与するための塗料添加剤、及び、前記塗料添加剤を用いた塗膜形成方法に関する。 The present invention relates to a paint additive for imparting antiviral properties to water-based paints, and a method for forming a coating film using the paint additive.
塗装は塗装対象物に対して彩色を付与する目的のみならず、耐候性や防錆性或いは断熱性等の種々の機能を付与する目的で行う場合もある。 Painting is not only done to impart color to the object being painted, but can also be done to impart various functions such as weather resistance, rust prevention, or heat insulation.
最近では、塗装対象物に対して消臭機能や抗菌機能を付与すべく、消臭剤及び抗菌剤が配合された塗料も開発されている（例えば、下記特許文献１参照。）。 Recently, paints containing deodorizing and antibacterial agents have been developed to impart deodorizing and antibacterial properties to the object being painted (see, for example, Patent Document 1 below).
即ち、塗料に何らかの機能を付与するにあたっては目的とする機能を有する物質を添加剤として配合することが一般的であり、現在市販されている塗料には、目的に応じた機能を有する物質があらかじめ配合されている。 In other words, when imparting a certain function to paint, it is common to blend in a substance with the desired function as an additive, and paints currently on the market are already blended with substances that have the desired function.
しかしながら、現在市販されている塗料は無数にあり、必ずしも使おうとする塗料に要求される機能が付与されているとは限られない。又、抗ウイルス性を有する塗料については、ほとんど市販されていないのが現状である。 However, there are countless paints currently on the market, and the paint you want to use does not necessarily have the required functionality. Furthermore, there are currently very few paints on the market that have antiviral properties.
本発明は、前記技術的課題に鑑みて完成されたものであり、水性塗料に抗ウイルス性を付与することができる新規な塗料添加剤、及び前記塗料添加剤を用いた塗膜形成方法を提供することを目的とする。 The present invention was completed in consideration of the above technical challenges, and aims to provide a novel paint additive that can impart antiviral properties to water-based paints, and a method for forming a coating film using the paint additive.
前記技術的課題を解決するための本発明の塗料添加剤は、水性塗料に抗ウイルス性を付与するための塗料添加剤であって、親水性溶剤に酸化亜鉛粉末が配合されてなることを特徴とする（以下、「本発明添加剤」と称する。）。 The paint additive of the present invention, which solves the above technical problems, is a paint additive for imparting antiviral properties to water-based paint, and is characterized by comprising zinc oxide powder blended with a hydrophilic solvent (hereinafter referred to as the "additive of the present invention").
前記本発明添加剤においては、親水性溶剤が、低級アルコールを主成分とするものが好ましい態様となる。 In the additive of the present invention, a preferred embodiment is one in which the hydrophilic solvent contains a lower alcohol as the main component.
前記技術的課題を解決するための本発明の塗膜形成方法は、塗装対象物に抗ウイルス性を有する塗膜を形成する塗膜形成方法であって、前記本発明添加剤を水性塗料に混合することによって酸化亜鉛配合塗料を得る塗料調整工程と、前記酸化亜鉛配合塗料を塗装対象物に塗布する塗布工程と、を実行することを特徴とする（以下、「本発明方法」と称する。）。 The coating film formation method of the present invention, which solves the above technical problems, is a coating film formation method for forming an antiviral coating film on an object to be painted, and is characterized by carrying out a paint preparation step in which the additive of the present invention is mixed with an aqueous paint to obtain a zinc oxide-containing paint, and an application step in which the zinc oxide-containing paint is applied to the object to be painted (hereinafter referred to as the "method of the present invention").
前記本発明方法においては、前記塗料調整工程の実行時、水性塗料１００重量部に対して、酸化亜鉛粉末の配合量が０．１～１重量部となるように本発明添加剤を混合することが好ましい態様となる。 In the method of the present invention, it is preferable that, when carrying out the paint preparation step, the additive of the present invention is mixed so that the amount of zinc oxide powder blended is 0.1 to 1 part by weight per 100 parts by weight of the water-based paint.
本発明によれば、水性塗料に抗ウイルス性を付与することができ、塗装対象物の表面に抗ウイルス性を有する塗膜を形成することができる。 The present invention makes it possible to impart antiviral properties to water-based paints, and to form antiviral coating films on the surfaces of objects to be painted.
以下、本発明を実施するための形態を説明するが、本発明はこの実施形態に限定されるものではない。 The following describes an embodiment of the present invention, but the present invention is not limited to this embodiment.
＜本発明添加剤＞
本発明添加剤は、水性塗料（希釈剤に水が用いられている塗料）に抗ウイルス性を付与するための塗料添加剤であり、「親水性溶剤」に「酸化亜鉛粉末」が配合されてなることを特徴とする。
<Additive of the present invention>
The additive of the present invention is a paint additive for imparting antiviral properties to water-based paints (paints that use water as a diluent), and is characterized by comprising a "hydrophilic solvent" and "zinc oxide powder" blended therein.
‐親水性溶剤‐
本発明において親水性溶剤とは、水に対して親和性を有する液状媒体を意味する。親水性溶剤の例としては、水の他、エチルアルコールやプロピルアルコール（ｎ‐プロピルアルコール及びイソプロピルアルコール）、或いはエチレングリコールやプロピレングリコールなどの低級アルコール（ジオールやトリオールを含む）を挙げることができる。又、親水性溶剤には、防菌や防黴などを目的とする添加剤が含まれていても良い。
-Hydrophilic solvent-
In the present invention, the term "hydrophilic solvent" refers to a liquid medium having an affinity for water. Examples of hydrophilic solvents include water, ethyl alcohol, propyl alcohol (n-propyl alcohol and isopropyl alcohol), and lower alcohols (including diols and triols) such as ethylene glycol and propylene glycol. The hydrophilic solvent may also contain additives for purposes such as antibacterial and antifungal properties.
‐酸化亜鉛粉末‐
本発明において酸化亜鉛粉末とは、粉末状の酸化亜鉛（ＺｎＯ）を意味する。従来の塗料の分野においては酸化亜鉛を抗菌や防臭の目的で添加する場合もあったが、抗ウイルスを目的として酸化亜鉛を塗料に添加することは無かった。本発明において酸化亜鉛粉末の粒径は特に限定されないが、酸化亜鉛が前記親水性溶剤に溶解しないため、前記親水性溶剤中に分散させ易い１０μｍ以下（好ましくは１μｍ以下）の微粉末状のものを用いることが好ましい。又、取り扱い性の利便性を鑑みて、前記親水性溶剤に対する酸化亜鉛粉末の配合量は５～２０重量％とすることが好ましい。なお、ＪＩＳ規格においては酸化亜鉛の純度により１～３種に区分されているが、本発明では酸化亜鉛につきいずれの種であっても良い。
- Zinc oxide powder -
In the present invention, zinc oxide powder refers to powdered zinc oxide (ZnO). While zinc oxide has traditionally been added to paints for antibacterial and deodorizing purposes, it has never been added to paints for antiviral purposes. While the particle size of the zinc oxide powder is not particularly limited in the present invention, it is preferable to use a fine powder of 10 μm or less (preferably 1 μm or less) that is easily dispersed in the hydrophilic solvent because zinc oxide is insoluble in the hydrophilic solvent. Furthermore, for ease of handling, the amount of zinc oxide powder blended relative to the hydrophilic solvent is preferably 5 to 20 wt %. While the JIS standard classifies zinc oxide into types 1 to 3 based on its purity, any type of zinc oxide is acceptable in the present invention.
＜本発明方法＞
本発明方法は、塗装対象物の表面に抗ウイルス性を有する塗膜を形成する塗膜形成方法であり、「塗料調整工程」と、「塗布工程」と、を実行する。
<Method of the present invention>
The method of the present invention is a coating film formation method for forming an antiviral coating film on the surface of an object to be coated, and includes a "paint preparation step" and an "application step."
‐塗料調整工程‐
塗料調整工程では、前記本発明添加剤を水性塗料に混合することによって酸化亜鉛配合塗料を得る。具体的には、市販の水性塗料に前記本発明添加剤を配合し、撹拌することによって、酸化亜鉛が水性塗料中において均一に分散された酸化亜鉛配合塗料を調整する。水性塗料に対する前記本発明添加剤の配合量は特に限定されないが、水性塗料の色彩に影響を与えないように、水性塗料１００重量部に対して、酸化亜鉛粉末の配合量が０．１～１重量部（より好ましくは０．５重量部以下）となるように本発明添加剤を混合することが好ましい。
-Paint adjustment process-
In the paint preparation step, the additive of the present invention is mixed with an aqueous paint to obtain a zinc oxide-containing paint. Specifically, the additive of the present invention is mixed with a commercially available aqueous paint and stirred to prepare a zinc oxide-containing paint in which zinc oxide is uniformly dispersed in the aqueous paint. The amount of the additive of the present invention to be mixed with the aqueous paint is not particularly limited, but it is preferable to mix the additive of the present invention so that the amount of zinc oxide powder is 0.1 to 1 part by weight (more preferably 0.5 parts by weight or less) per 100 parts by weight of the aqueous paint so as not to affect the color of the aqueous paint.
‐塗布工程‐
塗布工程では、前記酸化亜鉛配合塗料を塗装対象物に塗布する。塗装対象物は特に限定されず、例えば、建物の壁や屋根、或いは塀などの建築物を挙げることができる。又、塗布方法も特に限定されず、刷毛やローラーを使用した塗工手段の他、スプレーなどによる塗工手段を適宜選択することができる。
-Coating process-
In the coating step, the zinc oxide-containing paint is applied to an object to be coated. The object to be coated is not particularly limited, and examples thereof include buildings such as walls and roofs of buildings, or fences. The coating method is also not particularly limited, and coating means such as a brush or roller, as well as spraying, can be appropriately selected.
［実施例］
下記表１に実施例１、２に係る本発明添加剤の処方を示す。なお、酸化亜鉛粉末の配合量はいずれも１２重量％とした。又、酸化亜鉛粉末の粒径はレーザー解析法による測定値である。更に、プロピルアルコールは、ｎ‐プロピルアルコールとイソプロピルアルコールの混合溶剤（重量比３：７）である。
[Example]
Table 1 below shows the formulation of the additive of the present invention in Examples 1 and 2. The amount of zinc oxide powder was 12% by weight in both cases. The particle size of the zinc oxide powder was measured by laser analysis. Furthermore, the propyl alcohol was a mixed solvent of n-propyl alcohol and isopropyl alcohol (weight ratio 3:7).
市販の水性塗料１００重量部に対し、酸化亜鉛粉末の配合量が０．２５重量部となるように各実施例に係る本発明添加剤を添加することによって酸化亜鉛配合塗料を得た。この酸化亜鉛配合塗料をガラス板に塗工し、十分に乾燥させて塗膜を形成させた後、塗膜上にウイルス液（アルファ株のコロナウイルス（国立感染症研究所提供））を滴下した。なお、比較例として本発明添加剤が配合されていない水性塗料の塗膜が形成されたガラス板にもウイルス液を滴下した。 A zinc oxide-containing paint was obtained by adding the additive of the present invention according to each example to 100 parts by weight of commercially available water-based paint so that the amount of zinc oxide powder was 0.25 parts by weight. This zinc oxide-containing paint was applied to a glass plate and thoroughly dried to form a coating, after which a virus liquid (alpha strain coronavirus (provided by the National Institute of Infectious Diseases)) was dripped onto the coating. As a comparative example, the virus liquid was also dripped onto a glass plate on which a coating of water-based paint not containing the additive of the present invention had been formed.
その後６０分経過した時点で滴下したウイルス液をＶｅｒｏＥ６／ＴＭＰＲＳＳ２細胞に摂取し、ウイルス量を定量した（滋賀医科大学 病理学講座 疾患制御病態学部門にて定量）。 After 60 minutes, the dropped virus solution was taken up by VeroE6/TMPRSS2 cells, and the amount of virus was quantified (quantification conducted by the Department of Disease Control and Pathophysiology, Department of Pathology, Shiga University of Medical Science).
その結果、本発明添加剤が配合されていない水性塗料の塗膜上に滴下したウイルス液には、３００００（ＴＣＩＤ５０／ｍｌ）を超えるウイルス濃度が確認されたにもかかわらず、本発明添加剤が配合されている塗膜上に滴下されたウイルス液にはウイルスの存在が確認されなかった。 As a result, a virus concentration of over 30,000 (TCID50/ml) was confirmed in the virus solution dropped onto the coating of the water-based paint that did not contain the additive of the present invention, but no virus was detected in the virus solution dropped onto the coating that contained the additive of the present invention.
なお、酸化亜鉛配合塗料中の酸化亜鉛粉末の配合量を０．１～１重量部の範囲で変化させた場合についても同様の試験結果が得られた。 Similar test results were obtained when the amount of zinc oxide powder in the zinc oxide-containing paint was changed within the range of 0.1 to 1 part by weight.
これより本発明によれば、水性塗料に抗ウイルス性を付与することができ、塗装対象物の表面に抗ウイルス性を有する塗膜を形成することができることが確認された。 This confirms that the present invention can impart antiviral properties to water-based paints and form antiviral coating films on the surfaces of objects to be painted.
なお、本発明は、その精神又は主要な特徴から逸脱することなく、他のいろいろな形態で実施することができる。そのため、上述の実施形態（実施例）はあらゆる点で単なる例示に過ぎず、限定的に解釈してはならない。本発明の範囲は特許請求の範囲によって示すものであって、明細書本文には何ら拘束されない。更に、特許請求の範囲の均等範囲に属する変形や変更は、すべて本発明の範囲内のものである。 The present invention can be embodied in various other forms without departing from its spirit or essential features. Therefore, the above-described embodiments (examples) are merely illustrative in all respects and should not be interpreted as limiting. The scope of the present invention is defined by the claims and is not limited in any way by the text of the specification. Furthermore, all modifications and variations that fall within the equivalent scope of the claims are within the scope of the present invention.
本発明は水性塗料に抗ウイルス性を付与し、もって、塗装対象物の表面に抗ウイルス性を有する塗膜を形成する手段として好適に利用することができる。
The present invention can be suitably used as a means for imparting antiviral properties to an aqueous paint, and thereby forming a coating film having antiviral properties on the surface of an object to be painted.
Claims (4)
低級アルコールを主成分とする親水性溶剤に酸化亜鉛粉末が配合されてなることを特徴とする塗料添加剤。 A paint additive for imparting antiviral properties to a water-based paint,
A paint additive characterized by comprising zinc oxide powder blended in a hydrophilic solvent containing a lower alcohol as a main component .
親水性溶剤に対し５～２０重量％の酸化亜鉛粉末が配合されてなる酸化亜鉛配合塗料。A zinc oxide-containing paint in which 5 to 20% by weight of zinc oxide powder is mixed with a hydrophilic solvent.
請求項１に記載の塗料添加剤を水性塗料に混合することによって酸化亜鉛配合塗料を得る塗料調整工程と、
酸化亜鉛配合塗料を塗装対象物に塗布する塗布工程と、
を実行することを特徴とする塗膜形成方法。 A coating film forming method for forming an antiviral coating film on an object to be coated, comprising:
a paint preparation step of obtaining a zinc oxide-containing paint by mixing the paint additive according to claim 1 with an aqueous paint;
A coating process of applying a zinc oxide-containing paint to an object to be painted;
A coating film forming method characterized by carrying out the steps of:
前記塗料調整工程の実行時、水性塗料１００重量部に対して、酸化亜鉛粉末の配合量が０．１～１重量部となるように塗料添加剤を混合する塗膜形成方法。 The coating film forming method according to claim 3,
In the paint preparation step, the paint additives are mixed so that the amount of zinc oxide powder blended is 0.1 to 1 part by weight per 100 parts by weight of the water-based paint.
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3179060U (en) | 2012-08-02 | 2012-10-11 | 株式会社シガドライウィザース | Antiviral fabric, clothing, curtains and screen doors made from it |
| CN108690390A (en) | 2018-05-29 | 2018-10-23 | 中建深业建设发展有限公司 | A kind of environment protection coating additive and preparation method thereof with antibacterial functions |
| CN109897433A (en) | 2019-03-28 | 2019-06-18 | 安徽名士达新材料有限公司 | A kind of water paint additive of Rustproof high-temperature resisting |
| JP2022156812A (en) | 2021-03-31 | 2022-10-14 | 大阪瓦斯株式会社 | Method for producing zinc oxide nanoparticle |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| JPH06227814A (en) * | 1993-02-01 | 1994-08-16 | Nippon Steel Corp | Method for producing high-purity zinc oxide powder |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3179060U (en) | 2012-08-02 | 2012-10-11 | 株式会社シガドライウィザース | Antiviral fabric, clothing, curtains and screen doors made from it |
| CN108690390A (en) | 2018-05-29 | 2018-10-23 | 中建深业建设发展有限公司 | A kind of environment protection coating additive and preparation method thereof with antibacterial functions |
| CN109897433A (en) | 2019-03-28 | 2019-06-18 | 安徽名士达新材料有限公司 | A kind of water paint additive of Rustproof high-temperature resisting |
| JP2022156812A (en) | 2021-03-31 | 2022-10-14 | 大阪瓦斯株式会社 | Method for producing zinc oxide nanoparticle |
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