JPH11209895A - Metallic product excellent in antibacterial property and its production - Google Patents
Metallic product excellent in antibacterial property and its productionInfo
- Publication number
- JPH11209895A JPH11209895A JP10027748A JP2774898A JPH11209895A JP H11209895 A JPH11209895 A JP H11209895A JP 10027748 A JP10027748 A JP 10027748A JP 2774898 A JP2774898 A JP 2774898A JP H11209895 A JPH11209895 A JP H11209895A
- Authority
- JP
- Japan
- Prior art keywords
- coating film
- electrodeposition coating
- silver
- antibacterial
- film
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、抗菌性に優れた金
属製品（素材としての金属材を含む、以下同じ）および
その製造方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a metal product having excellent antibacterial properties (including a metal material as a raw material, the same applies hereinafter) and a method for producing the same.
【０００２】[0002]
【従来の技術】近年、衛生、清潔指向が高まり、また例
えば、腸管出血性大腸菌Ｏ−１５７、ＭＲＳＡ、新型イ
ンフルエンザウイルスなど新しい細菌類の出現により、
多くの死者を出したことなどもあって、人が手で触る種
々の製品に抗菌性を付与することが強く求められるよう
になってきた。2. Description of the Related Art In recent years, hygiene and cleanliness have been improved, and new bacteria such as enterohemorrhagic Escherichia coli O-157, MRSA, and new influenza virus have emerged.
Due to the large number of deaths, it has been strongly required to impart antibacterial properties to various products touched by human hands.
【０００３】このうち金属製品に抗菌性を与える方法と
しては、従来、金属製品の表面に各種抗菌剤を含む塗料
を塗布する方法が行われており、抗菌剤としては、有機
系抗菌剤および銀や銅などの抗菌性金属を含有する無機
抗菌剤が適用されている。一般には、有機系抗菌剤は耐
久性に劣り、安全性にも問題が多いので、無機性抗菌剤
が好適に使用されている。As a method of imparting antibacterial properties to a metal product, a method of applying a paint containing various antibacterial agents to the surface of a metal product has been conventionally performed. As the antibacterial agent, an organic antibacterial agent and silver are used. Inorganic antibacterial agents containing antibacterial metals such as copper and copper have been applied. Generally, organic antibacterial agents are inferior in durability and have many problems in safety. Therefore, inorganic antibacterial agents are preferably used.
【０００４】しかしながら、上記の方法においては、塗
膜全体に抗菌剤が分散するため、抗菌剤の使用量が多く
なりコスト高となるという難点がある。金属製品に陽極
酸化皮膜を形成し、陽極酸化皮膜中に抗菌剤を拡散させ
る方法も提案されているが、この方法は、陽極酸化皮膜
を形成し得るアルミニウムなどの金属製品に限定される
という問題点がある。[0004] However, in the above method, since the antibacterial agent is dispersed throughout the coating film, there is a problem that the amount of the antibacterial agent used increases and the cost increases. A method of forming an anodized film on a metal product and diffusing an antibacterial agent into the anodized film has been proposed, but this method is limited to metal products such as aluminum which can form an anodized film. There is a point.
【０００５】[0005]
【発明が解決しようとする課題】本発明は、金属製品に
抗菌性を付与する場合における従来の上記問題点を解消
するためになされたものであり、その目的は、あらゆる
金属製品に適用可能であり、抗菌剤の使用量を削減して
従来と同等以上の抗菌効果を発揮し得る抗菌性に優れた
金属製品およびその製造方法を提供することにある。SUMMARY OF THE INVENTION The present invention has been made to solve the above-mentioned conventional problems in imparting antibacterial properties to metal products, and the object of the present invention is to apply to any metal products. An object of the present invention is to provide a metal product excellent in antibacterial property capable of exhibiting an antibacterial effect equal to or higher than the conventional one by reducing the amount of an antibacterial agent used, and a method for producing the same.
【０００６】[0006]
【課題を解決するための手段】上記の目的を達成するた
めの本発明による抗菌性に優れた金属製品は、表面に電
着塗膜を形成した金属製品であって、電着塗膜中に無機
系抗菌性成分が拡散、吸着していることを構成上の第１
の特徴とする。また、金属製品がアルミニウム製品であ
り、アルミニウム製品の表面に陽極酸化皮膜を介して電
着塗膜が形成されていることを構成上の第２の特徴とす
る。The metal product excellent in antibacterial property according to the present invention for achieving the above object is a metal product having an electrodeposition coating film formed on a surface thereof, and the metal product having an electrodeposition coating film formed on the surface thereof. The first component in the composition that the inorganic antibacterial component is diffused and adsorbed
The feature of. A second feature of the configuration is that the metal product is an aluminum product, and an electrodeposition coating film is formed on the surface of the aluminum product via an anodic oxide film.
【０００７】本発明による抗菌性に優れた金属製品の製
造方法は、金属製品の表面に電着塗膜を形成し、該電着
塗膜に無機系抗菌性成分の微粒子分散液を接触させた
後、電着塗膜を加熱硬化させることにより、無機系抗菌
性成分の微粒子を電着塗膜の内部に拡散させ吸着させる
ことを第１の特徴とし、金属製品がアルミニウム製品で
あり、アルミニウム製品の表面に陽極酸化皮膜を介して
電着塗膜を形成すること、および電着塗膜に銀を含有す
る無機系抗菌性成分の微粒子分散液を接触させ、電着塗
膜の表面に銀固型分換算で０．００００１〜０．１ｇ／
ｍ2 の微粒子分散液を付着させることを第２および第３
の特徴とする。According to the method for producing a metal product having excellent antibacterial properties according to the present invention, an electrodeposition coating film is formed on the surface of a metal product, and a fine particle dispersion of an inorganic antibacterial component is brought into contact with the electrodeposition coating film. The first feature is that the electrodeposited coating film is cured by heating to diffuse and adsorb fine particles of the inorganic antibacterial component into the interior of the electrodeposited coating film. The metal product is an aluminum product. Forming an electrodeposition coating film on the surface of the electrodeposition film through an anodic oxide film, and contacting the electrodeposition coating film with a fine particle dispersion of an inorganic antibacterial component containing silver to form a silver solid on the surface of the electrodeposition coating film. 0.00001-0.1g /
adhering the fine particle dispersion of m 2
The feature of.
【０００８】[0008]
【発明の実施の形態】本発明における金属製品の構成材
料としては、アルミニウム（合金を含む）、鉄、鋼、め
っき処理鋼、銅（合金を含む）など、電着塗装し得るす
べての金属材料を適用することができる。電着塗膜を形
成するための電着塗料としては、アニオン系、カチオン
系のいずれでもよく、塗料種としては、マレイン化油、
ポリブタジエン樹脂、アルキド樹脂、ポリエステル樹
脂、アクリルメラミン樹脂、エポキシ樹脂、フッ素樹脂
などから用途に応じて適宜選択使用される。BEST MODE FOR CARRYING OUT THE INVENTION As a constituent material of a metal product in the present invention, all metal materials which can be electrodeposited, such as aluminum (including alloy), iron, steel, plated steel, copper (including alloy), etc. Can be applied. As the electrodeposition paint for forming the electrodeposition coating film, any of anionic and cationic may be used.
Polybutadiene resin, alkyd resin, polyester resin, acrylic melamine resin, epoxy resin, fluororesin and the like are appropriately selected and used depending on the application.
【０００９】抗菌剤としては、耐久性、安全性の観点か
ら無機系抗菌剤を適用するのが好ましく、無機系抗菌性
成分としては、塗膜への拡散のし易さ、安全性、持続性
の点で、銀、銅、スズ、銀−銅合金、リン酸銀、塩化
銀、硫化銀、酸化銀、硫酸銀、硝酸銀、乳酸銀、酢酸銀
などの有機酸銀、銀担持無機化合物、リン酸第一銅（Ｃ
ｕ3 ＰＯ4 ）、リン酸第二銅（Ｃｕ3(ＰＯ4)2 ）、塩化
第一銅（ＣｕＣｌ）、塩化第二銅（ＣｕＣｌ2 ）、硫化
第一銅（Ｃｕ2 Ｓ）、硫化第二銅（ＣｕＳ）、酸化第一
銅（Ｃｕ2 Ｏ）、酸化第二銅（ＣｕＯ）、硫酸第一銅
（Ｃｕ2 ＳＯ4 ）、硫酸第二銅（ＣｕＳＯ4 ）、乳酸
銅、酢酸銅などの有機酸銅、銅担持無機化合物、塩化第
一スズ（ＳｎＣｌ2 ）、酸化第一スズ（ＳｎＯ）、酸化
第二スズ（ＳｎＯ2 ）、硫酸第一スズ（ＳｎＳＯ4 ）、
酢酸スズなどの有機酸スズ、スズ担持無機化合物のうち
から選択使用するのが好ましい。As the antibacterial agent, it is preferable to use an inorganic antibacterial agent from the viewpoints of durability and safety. As the inorganic antibacterial component, it is easy to diffuse into the coating film, and the safety and the sustainability. In terms of silver, copper, tin, silver-copper alloy, silver phosphate, silver chloride, silver sulfide, silver oxide, silver sulfate, silver nitrate, organic acid silver such as silver lactate, silver acetate, etc. Cuprous acid (C
u 3 PO 4), cupric phosphate (Cu 3 (PO 4) 2 ), cuprous chloride (CuCl), cupric chloride (CuCl 2), cuprous sulfide (Cu 2 S), the sulfide Cupric (CuS), cuprous oxide (Cu 2 O), cupric oxide (CuO), cuprous sulfate (Cu 2 SO 4 ), cupric sulfate (CuSO 4 ), copper lactate, copper acetate, etc. Organic acid copper, copper-carrying inorganic compound, stannous chloride (SnCl 2 ), stannous oxide (SnO), stannic oxide (SnO 2 ), stannous sulfate (SnSO 4 ),
It is preferable to select and use from an organic acid tin such as tin acetate and a tin-supported inorganic compound.
【００１０】本発明による抗菌性に優れた金属製品の製
造は、金属製品の表面を公知の方法で塗装前処理した
後、常法に従って電着塗装を行って電着塗膜を形成し、
該電着塗膜に無機系抗菌性成分の微粒子分散液を接触さ
せ、無機系抗菌性成分の微粒子を焼付け硬化前の塗膜の
表面や空隙に付着させた後、加熱処理を行って電着塗膜
を加熱硬化させることにより行う。In the production of a metal product having excellent antibacterial properties according to the present invention, the surface of the metal product is subjected to a pre-coating treatment by a known method, followed by electrodeposition coating according to a conventional method to form an electrodeposition coating film.
A fine particle dispersion of an inorganic antibacterial component is brought into contact with the electrodeposited coating film, and the fine particles of the inorganic antibacterial component are attached to the surface or voids of the coating film before baking and curing. This is performed by heating and curing the coating film.
【００１１】加熱硬化の工程中に、塗膜に付着した無機
系抗菌性成分の微粒子は、塗膜表面から内部へ拡散して
抗菌剤の拡散層を形成し、抗菌性が必要な金属製品の塗
膜の極表層部のみに抗菌成分を分布させる。その結果、
少量の抗菌成分により抗菌性が長期間持続できる金属製
品が得られる。なお、本発明において、抗菌性には、防
黴性、防藻性も包含するものとする。During the heat curing process, the fine particles of the inorganic antibacterial component adhering to the coating film diffuse from the surface of the coating film to the inside to form a diffusion layer of the antibacterial agent. The antimicrobial component is distributed only on the very surface layer of the coating film. as a result,
With a small amount of antibacterial component, a metal product that can maintain antibacterial properties for a long time can be obtained. In the present invention, the antibacterial properties include fungicidal and algal-proof properties.
【００１２】電着塗膜に無機系抗菌性成分の微粒子分散
液を接触させる方法としては、スプレー、浸漬、ハケ塗
りなどの方法が適用できる。微粒子分散液には界面活性
剤を添加して、焼付け前の電着塗装面への濡れを良くす
るのが好ましい。微粒子分散液中の抗菌成分の濃度は、
０．０００１〜１％の範囲が好ましく、０．０００１％
未満では十分な抗菌効果が得難く、１％を越えると、抗
菌成分が電着塗膜の内部に拡散しきれずに表面に残留
し、汚れの原因となり易い。As a method for bringing the fine particle dispersion of the inorganic antibacterial component into contact with the electrodeposition coating film, a method such as spraying, dipping, or brushing can be applied. Preferably, a surfactant is added to the fine particle dispersion to improve the wetting of the electrodeposition coated surface before baking. The concentration of the antibacterial component in the fine particle dispersion is
The range of 0.0001 to 1% is preferable, and 0.0001%
If it is less than 1%, it is difficult to obtain a sufficient antibacterial effect, and if it exceeds 1%, the antibacterial component remains on the surface without being completely diffused into the electrodeposition coating film, and tends to cause stains.
【００１３】無機系抗菌性成分の塗布量については、と
くに制限はないが、抗菌性成分として銀を含有する無機
系抗菌性成分を用いる場合には、塗布量を、銀固形分換
算で０．００００１〜０．１ｇ／ｍ2 の範囲とするのが
望ましく、下限未満では抗菌効果が十分でなく、上限を
越えてもそれ以上の抗菌効果が期待できない。The amount of the inorganic antibacterial component to be applied is not particularly limited. However, when an inorganic antibacterial component containing silver is used as the antibacterial component, the amount of the inorganic antibacterial component is set to 0.1 in terms of silver solid content. It is desirable to be in the range of 00001 to 0.1 g / m 2. If the amount is less than the lower limit, the antibacterial effect is not sufficient.
【００１４】本発明で使用する無機系抗菌性成分の微粒
子の平均粒子径は１μｍ以下、とくに０．１μｍ以下の
コロイドとするのが好ましく、このコロイド状の無機系
抗菌性成分の微粒子を使用することにより、電着塗膜内
部への拡散が一層容易となる。The average particle size of the fine particles of the inorganic antibacterial component used in the present invention is preferably 1 μm or less, particularly preferably 0.1 μm or less, and the colloidal fine particles of the inorganic antibacterial component are used. Thereby, diffusion into the interior of the electrodeposition coating film is further facilitated.
【００１５】電着塗膜の焼付け硬化温度については、と
くに制限はなく、常法に従って使用する塗料に応じた条
件で行えばよいが、より効率的に電着塗膜中に抗菌性成
分を拡散させるためには、１００〜３００℃の範囲の温
度で加熱硬化させるのが好ましい。１００℃未満の温度
では塗膜中への拡散効果が遅くなり、３００℃を越える
温度に加熱すると、塗料の劣化が生じ易くなる。加熱時
間は使用する塗料によって異なることがあるが、通常１
時間以内である。The baking and curing temperature of the electrodeposition coating film is not particularly limited, and may be performed under the conditions according to the paint used according to a conventional method. For this purpose, it is preferable to heat and cure at a temperature in the range of 100 to 300 ° C. If the temperature is lower than 100 ° C., the effect of diffusing into the coating film is slowed down. The heating time may vary depending on the paint used, but usually 1 hour.
Within hours.
【００１６】金属製品がアルミニウム製品の場合には、
アルミニウム製品の表面にまず常法に従って硫酸、リン
酸などの無機酸、シュウ酸、スルホサリチル酸などの有
機酸中で直流電解、交流電解あるいは交直重畳電解を行
って陽極酸化皮膜を形成し、陽極酸化皮膜を介して電着
塗膜を形成した後、電着塗膜中に無機系抗菌性成分を拡
散させてもよい。When the metal product is an aluminum product,
Anodized film is formed on the surface of aluminum product by performing DC electrolysis, AC electrolysis or AC / DC superposition electrolysis in an inorganic acid such as sulfuric acid or phosphoric acid, or an organic acid such as oxalic acid or sulfosalicylic acid according to a usual method. After forming the electrodeposition coating film through the film, the inorganic antibacterial component may be diffused into the electrodeposition coating film.
【００１７】[0017]
【実施例】以下、本発明の実施例を比較例と対比して説
明する。銀および銀含有物の微粒子分散液（Ａ）〜
（Ｃ）を以下の方法で作製する。 （Ａ）０．２ｍａｓｓ％硝酸銀水溶液を蒸発皿にとり、
液面にバーナーの炎を当て銀の微粒子を得た。得られた
銀の微粒子を水に分散し、０．１ｍａｓｓ％の銀を含む
微粒子分散液とした。微粒子の平均粒子径は０．０１μ
ｍであった。Hereinafter, examples of the present invention will be described in comparison with comparative examples. Fine particle dispersion of silver and silver-containing material (A)
(C) is produced by the following method. (A) Take 0.2 mass% silver nitrate aqueous solution in an evaporating dish,
A burner flame was applied to the liquid surface to obtain fine silver particles. The obtained silver fine particles were dispersed in water to obtain a fine particle dispersion containing 0.1 mass% of silver. The average particle size of the fine particles is 0.01μ
m.
【００１８】（Ｂ）乳酸銀１０ｇに水１リットルを加
え、ボールミルで４８時間粉砕して、１ｍａｓｓ％の乳
酸銀を含む微粒子分散液とした。微粒子の平均粒子径は
０．１μｍであった。 （Ｃ）０．５ｍａｓｓ％のコロイダルシリカ分散液１０
０ｃｍ3 に、硝酸銀０．０５ｇ、ホルムアルデヒド０．
０１ｇを加え、紫外線を２４時間照射して、シリカ表面
に銀が析出した分散液を得た。微粒子の平均粒子径は
０．０５μｍであった。(B) One liter of water was added to 10 g of silver lactate, and the mixture was pulverized with a ball mill for 48 hours to obtain a fine particle dispersion containing 1 mass% of silver lactate. The average particle size of the fine particles was 0.1 μm. (C) 0.5 mass% colloidal silica dispersion 10
In 0 cm 3 , 0.05 g of silver nitrate and 0.
The dispersion was irradiated with ultraviolet rays for 24 hours to obtain a dispersion in which silver was precipitated on the silica surface. The average particle size of the fine particles was 0.05 μm.
【００１９】実施例１ アルミニウム合金６０６３の押出形材を溶剤で脱脂処理
した後、これを陽極として、１５％硫酸水溶液中で、液
温度２５℃、電流密度１．５Ａ／ｄｍ2 の条件で２５分
間電解処理を行い、厚さ１１μｍの陽極酸化皮膜を生成
した。Example 1 An extruded aluminum alloy 6063 was degreased with a solvent and used as an anode in a 15% aqueous sulfuric acid solution at a liquid temperature of 25 ° C. and a current density of 1.5 A / dm 2. The electrolytic treatment was carried out for 10 minutes to form an anodic oxide film having a thickness of 11 μm.
【００２０】水洗および湯洗の後、艶消しアニオン型電
着塗料（東亞合成（株）製ＥＤ−４８００、固形分８．
０％）中において、前記陽極酸化皮膜を形成したアルミ
ニウム合金形材を陽極とし、２００Ｖの直流電圧を３分
間印加して、陽極酸化皮膜上に１５μｍ厚さの電着塗膜
を形成した。After washing with water and hot water, a matte anion type electrodeposition paint (ED-4800, manufactured by Toagosei Co., Ltd., solid content: 8.
0%), the aluminum alloy profile on which the anodized film was formed was used as an anode, and a DC voltage of 200 V was applied for 3 minutes to form an electrodeposited film having a thickness of 15 μm on the anodized film.
【００２１】水洗、水切りの後、電着塗膜の表面に前記
（Ａ）の微粒子分散液を霧吹きで吹き付けた後、１８０
℃の温度で３０分間加熱処理し、塗膜を焼付け硬化させ
た。塗布量は、銀換算（銀固型分換算、以下同じ）で
０．００５ｇ／ｍ2 であった。After washing and draining, the fine particle dispersion of the above (A) is sprayed on the surface of the electrodeposition coating film by spraying,
Heat treatment was performed at a temperature of 30 ° C. for 30 minutes to bake and harden the coating film. The coating amount was 0.005 g / m 2 in terms of silver (in terms of silver solid content, the same applies hereinafter).
【００２２】実施例２ 実施例１において、電着塗膜の表面に対して（Ｂ）の微
粒子分散液を吹き付け、その塗布量を銀換算で０．０３
ｇ／ｍ2 とした以外は、実施例１とまったく同一の方法
により、抗菌性成分を拡散させた試験材を作製した。Example 2 In Example 1, the fine particle dispersion of (B) was sprayed on the surface of the electrodeposition coating film, and the coating amount was 0.03 in terms of silver.
A test material in which an antibacterial component was diffused was produced in exactly the same manner as in Example 1 except that the amount was g / m 2 .
【００２３】実施例３ 実施例１において、電着塗膜の表面に対して（Ｃ）の微
粒子分散液を吹き付け、その塗布量を銀換算で０．００
１ｇ／ｍ2 とした以外は、実施例１とまったく同一の方
法により、抗菌性成分を拡散させた試験材を作製した。Example 3 In Example 1, the fine particle dispersion (C) was sprayed on the surface of the electrodeposition coating film, and the coating amount was 0.000 in terms of silver.
A test material in which an antibacterial component was diffused was produced in exactly the same manner as in Example 1 except that the amount was 1 g / m 2 .
【００２４】比較例１ 実施例１とまったく同一の方法で電着塗膜を形成し、電
着塗膜の表面に微粒子分散液を吹き付けることなく、１
８０℃の温度で３０分間加熱処理し、塗膜を焼付け硬化
させた試験材を作製した。Comparative Example 1 An electrodeposited film was formed in exactly the same manner as in Example 1, and without spraying a fine particle dispersion on the surface of the electrodeposited film.
A heat treatment was performed at a temperature of 80 ° C. for 30 minutes to prepare a test material in which the coating film was baked and cured.
【００２５】実施例４ リン酸亜鉛処理した溶融亜鉛めっき鋼板を陰極として、
カチオン型電着塗料（日本ペイント（株）製パワートッ
プＵ−３０、固型分１５％）中で、２２０Ｖの直流電圧
を３分間印加し、２０μｍ厚さの電着塗膜を形成した。
水洗、水切りの後、前記（Ａ）の微粒子分散液に浸漬
し、ついで２００℃の温度で３０分間加熱処理し、塗膜
を焼付け硬化させた。電着塗膜に対する微粒子分散液の
塗布量は銀換算で０．００４ｇ／ｍ2 であった。Example 4 A hot-dip galvanized steel sheet treated with zinc phosphate was used as a cathode.
In a cationic electrodeposition coating material (Nippon Paint Co., Ltd., Power Top U-30, solid content 15%), a DC voltage of 220 V was applied for 3 minutes to form an electrodeposition coating film having a thickness of 20 μm.
After washing with water and draining, it was immersed in the fine particle dispersion of (A), and then heat-treated at a temperature of 200 ° C. for 30 minutes to bake and harden the coating film. The amount of the fine particle dispersion applied to the electrodeposition coating film was 0.004 g / m 2 in terms of silver.
【００２６】実施例５ 実施例４において、電着塗膜を形成した鋼板を（Ｂ）の
微粒子分散液に浸漬し、電着塗膜の表面に対する微粒子
分散液の塗布量を銀換算で０．０２５ｇ／ｍ2とした以
外は、実施例４とまったく同一の方法により、抗菌性成
分を拡散させた試験材を作製した。Example 5 In Example 4, the steel sheet on which the electrodeposition coating film was formed was immersed in the fine particle dispersion of (B), and the amount of the fine particle dispersion applied to the surface of the electrodeposition coating film was 0.1% in terms of silver. A test material in which an antibacterial component was diffused was produced in exactly the same manner as in Example 4 except that the amount was 025 g / m 2 .
【００２７】実施例６ 実施例４において、電着塗膜を形成した鋼板を（Ｃ）の
微粒子分散液に浸漬し、電着塗膜の表面に対する微粒子
分散液の塗布量を銀換算で０．０００７ｇ／ｍ2 とした
以外は、実施例４とまったく同一の方法により、抗菌性
成分を拡散させた試験材を作製した。Example 6 In Example 4, the steel sheet on which the electrodeposition coating film was formed was immersed in the fine particle dispersion of (C), and the amount of the fine particle dispersion applied to the surface of the electrodeposition coating film was 0.1% in terms of silver. A test material in which an antibacterial component was diffused was produced in exactly the same manner as in Example 4 except that the amount was 0007 g / m 2 .
【００２８】比較例２ 実施例４とまったく同一の方法で電着塗膜を形成し、電
着塗膜を形成した鋼板を微粒子分散液に浸漬することな
く、２００℃の温度で３０分間加熱処理し、塗膜を焼付
け硬化させた試験材を作製した。Comparative Example 2 An electrodeposition coating film was formed in exactly the same manner as in Example 4, and the steel sheet with the electrodeposition coating film was heated at 200 ° C. for 30 minutes without being immersed in the fine particle dispersion. Then, a test material in which the coating film was baked and cured was produced.
【００２９】比較例３ アルミニウム合金６０６３の押出形材を溶剤で脱脂処理
した後、これを陽極として、１５％硫酸水溶液中で、液
温度２５℃、電流密度１．５Ａ／ｄｍ2 の条件で２５分
間電解処理を行い、厚さ１１μｍの陽極酸化皮膜を生成
した。Comparative Example 3 An extruded aluminum alloy 6063 was degreased with a solvent, and then used as an anode in a 15% aqueous sulfuric acid solution at a liquid temperature of 25 ° C. and a current density of 1.5 A / dm 2. The electrolytic treatment was carried out for 10 minutes to form an anodic oxide film having a thickness of 11 μm.
【００３０】水洗および湯洗の後、艶消しアニオン型電
着塗料（東亞合成（株）製ＥＤ−４８００、固形分８．
０％）中において、前記陽極酸化皮膜を形成したアルミ
ニウム合金形材を陽極とし、２００Ｖの直流電圧を３分
間印加して、陽極酸化皮膜上に１５μｍ厚さの電着塗膜
を形成した。After washing with water and hot water, matte anion type electrodeposition paint (ED-4800, manufactured by Toagosei Co., Ltd., solid content: 8.
0%), the aluminum alloy profile on which the anodized film was formed was used as an anode, and a DC voltage of 200 V was applied for 3 minutes to form an electrodeposited film having a thickness of 15 μm on the anodized film.
【００３１】水洗、水切りの後、電着塗膜の表面に、前
記（Ａ）の微粒子分散液を脱イオン水で６００倍に希釈
して霧吹きで吹き付けた後、１８０℃の温度で３０分間
加熱処理し、塗膜を焼付け硬化させた。塗布量は、銀換
算で０．０００００７ｇ／ｍ2 であった。After washing and draining, the fine particle dispersion of the above (A) is diluted 600 times with deionized water and sprayed on the surface of the electrodeposition coating film by spraying, and then heated at a temperature of 180 ° C. for 30 minutes. The coating was baked and cured. The coating amount was 0.000007 g / m 2 in terms of silver.
【００３２】比較例４ 比較例３において、（Ｂ）の微粒子分散液を脱イオン水
で８０００倍に希釈して電着塗膜の表面に霧吹きで吹き
付け、微粒子分散液の塗布量を銀換算で０．０００００
６ｇ／ｍ2 とした以外は、比較例３とまったく同一の方
法により、抗菌性成分を拡散させた試験材を作製した。Comparative Example 4 In Comparative Example 3, the fine particle dispersion of (B) was diluted 8,000 times with deionized water and sprayed on the surface of the electrodeposition coating film by spraying, and the coating amount of the fine particle dispersion was calculated in terms of silver. 0.00000
A test material in which an antibacterial component was diffused was produced in exactly the same manner as in Comparative Example 3 except that the amount was 6 g / m 2 .
【００３３】比較例５ 比較例３において、（Ｃ）の微粒子分散液を脱イオン水
で１００倍に希釈して電着塗膜の表面に霧吹きで吹き付
け、微粒子分散液の塗布量を銀換算で０．００００００
７ｇ／ｍ2 とした以外は、比較例３とまったく同一の方
法により、抗菌性成分を拡散させた試験材を作製した。Comparative Example 5 In Comparative Example 3, the fine particle dispersion of (C) was diluted 100 times with deionized water and sprayed on the surface of the electrodeposition coating film by spraying, and the coating amount of the fine particle dispersion was calculated in terms of silver. 0.000000
A test material in which an antimicrobial component was diffused was produced in exactly the same manner as in Comparative Example 3 except that the amount was 7 g / m 2 .
【００３４】実施例１〜６および比較例１〜５で作製し
た試験材について、その抗菌性を銀等無機抗菌剤研究会
制定のフィルム密着法に準拠して評価した。フィルム密
着法：２５ｍ2 の平板状の試験材に、菌濃度約１０5 ｃ
ｆｕ／ｍｌに調整した１／５００普通ブイヨンを含む大
腸菌および黄色ブドウ球菌の菌液０．５ｍｌを接種し、
その上に同じ形状のポリエチレン製フィルムを載せ、こ
れを３５℃の温度で２４時間培養した後、生存菌数を寒
天平板法で測定する。The antibacterial properties of the test materials prepared in Examples 1 to 6 and Comparative Examples 1 to 5 were evaluated in accordance with the film adhesion method established by the Society for the Study of Inorganic Antibacterial Agents such as Silver. Film adhesion method: Bacterial concentration about 10 5 c on a 25 m 2 flat test material
Inoculate 0.5 ml of E. coli and Staphylococcus aureus containing 1/500 normal broth adjusted to fu / ml,
A polyethylene film having the same shape is placed on the film, which is cultured at a temperature of 35 ° C. for 24 hours, and the number of viable bacteria is measured by an agar plate method.
【００３５】各試験材の抗菌性の評価結果を表１に示
す。表１にみられるように、本発明に従う実施例により
作製された試験材はいずれも、生存菌数が１００未満
（検出限界以下）で、優れた抗菌効果をそなえている。
これに対して、抗菌処理を行わなかった試験材（比較例
１、比較例２）では、多数の菌の生存が認められた。Table 1 shows the evaluation results of the antibacterial properties of each test material. As shown in Table 1, all of the test materials prepared according to the examples according to the present invention have a viable cell count of less than 100 (lower than the detection limit) and have excellent antibacterial effects.
On the other hand, in the test materials not subjected to the antibacterial treatment (Comparative Examples 1 and 2), survival of many bacteria was observed.
【００３６】また、抗菌剤として銀を含有する無機系抗
菌剤を使用した試験材において、銀および銀含有物の微
粒子分散液の塗布量が銀換算で０．００００１ｇ／ｍ2
未満の場合（試験材３、４および５）には抗菌効果が十
分でなく、生存菌数が多くなっている。In a test material using an inorganic antibacterial agent containing silver as an antibacterial agent, the coating amount of a fine particle dispersion of silver and a silver-containing material was 0.00001 g / m 2 in terms of silver.
If it is less than (test materials 3, 4 and 5), the antibacterial effect is not sufficient, and the number of surviving bacteria is large.
【００３７】[0037]
【表１】 [Table 1]
【００３８】[0038]
【発明の効果】本発明によれば、あらゆる金属製品に適
用可能で、少量の抗菌性物質により長期間にわたって抗
菌性を持続でき、従来と同等以上の抗菌効果を発揮し得
る抗菌性に優れた金属製品が得られる。According to the present invention, an antibacterial property which can be applied to all metal products, can maintain antibacterial properties over a long period of time with a small amount of antibacterial substances, and can exert an antibacterial effect equal to or higher than conventional ones. A metal product is obtained.
Claims (5)
って、電着塗膜中に無機系抗菌性成分が拡散、吸着して
いることを特徴とする抗菌性に優れた金属製品。1. A metal product having an electrodeposition coating film formed on a surface thereof, wherein an inorganic antibacterial component is diffused and adsorbed in the electrodeposition coating film. .
ルミニウム製品の表面に陽極酸化皮膜を介して電着塗膜
が形成されていることを特徴とする請求項１記載の抗菌
性に優れた金属製品。2. The metal product having excellent antibacterial properties according to claim 1, wherein the metal product is an aluminum product, and an electrodeposition coating film is formed on the surface of the aluminum product via an anodic oxide film. .
電着塗膜に無機系抗菌性成分の微粒子分散液を接触させ
た後、電着塗膜を加熱硬化させることにより、無機系抗
菌性成分の微粒子を電着塗膜の内部に拡散させ吸着させ
ることを特徴とする抗菌性に優れた金属製品の製造方
法。3. An electrodeposition coating film is formed on the surface of a metal product, and a fine particle dispersion of an inorganic antibacterial component is brought into contact with the electrodeposition coating film, and then the electrodeposition coating film is heated and cured. A method for producing a metal product having excellent antibacterial properties, characterized in that fine particles of an inorganic antibacterial component are diffused and adsorbed inside an electrodeposition coating film.
ルミニウム製品の表面に陽極酸化皮膜を介して電着塗膜
を形成することを特徴とする請求項３記載の抗菌性に優
れた金属製品の製造方法。4. The production of a metal product having excellent antibacterial properties according to claim 3, wherein the metal product is an aluminum product, and an electrodeposition coating film is formed on the surface of the aluminum product via an anodic oxide film. Method.
分の微粒子分散液を接触させ、電着塗膜の表面に銀固型
分換算で０．００００１〜０．１ｇ／ｍ2 の微粒子分散
液を付着させることを特徴とする請求項３または４のい
ずれかに記載の抗菌性に優れた金属製品の製造方法。5. An electrodeposition coating film is brought into contact with a fine particle dispersion of an inorganic antibacterial component containing silver, and the surface of the electrodeposition coating film is 0.00001 to 0.1 g / m 2 in terms of silver solid component. The method for producing a metal product having excellent antibacterial properties according to any one of claims 3 and 4, wherein the fine particle dispersion is attached.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10027748A JPH11209895A (en) | 1998-01-26 | 1998-01-26 | Metallic product excellent in antibacterial property and its production |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP10027748A JPH11209895A (en) | 1998-01-26 | 1998-01-26 | Metallic product excellent in antibacterial property and its production |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH11209895A true JPH11209895A (en) | 1999-08-03 |
Family
ID=12229662
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP10027748A Pending JPH11209895A (en) | 1998-01-26 | 1998-01-26 | Metallic product excellent in antibacterial property and its production |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH11209895A (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2014173120A (en) * | 2013-03-07 | 2014-09-22 | Nbc Meshtec Inc | Member having antiviral property and production method thereof |
| US8858775B2 (en) | 2007-10-03 | 2014-10-14 | Accentus Medical Limited | Method of manufacturing metal with biocidal properties |
| US8945363B2 (en) | 2002-04-16 | 2015-02-03 | Accentus Medical Limited | Method of making metal implants |
| US9011665B2 (en) | 2004-03-13 | 2015-04-21 | Accentus Medical Limited | Metal implants |
| CN108950654A (en) * | 2018-08-30 | 2018-12-07 | 齐昊 | A kind of antibacterial applications of copper sulphate in painting dressing automobiles cathode electrodip painting |
-
1998
- 1998-01-26 JP JP10027748A patent/JPH11209895A/en active Pending
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8945363B2 (en) | 2002-04-16 | 2015-02-03 | Accentus Medical Limited | Method of making metal implants |
| US9393349B2 (en) | 2002-04-16 | 2016-07-19 | Accentus Medical Limited | Metal implants |
| US9011665B2 (en) | 2004-03-13 | 2015-04-21 | Accentus Medical Limited | Metal implants |
| US8858775B2 (en) | 2007-10-03 | 2014-10-14 | Accentus Medical Limited | Method of manufacturing metal with biocidal properties |
| JP2014173120A (en) * | 2013-03-07 | 2014-09-22 | Nbc Meshtec Inc | Member having antiviral property and production method thereof |
| CN108950654A (en) * | 2018-08-30 | 2018-12-07 | 齐昊 | A kind of antibacterial applications of copper sulphate in painting dressing automobiles cathode electrodip painting |
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