JP3454640B2 - Antibacterial / antifungal / algae-resistant article and method for producing the same - Google Patents
Antibacterial / antifungal / algae-resistant article and method for producing the sameInfo
- Publication number
- JP3454640B2 JP3454640B2 JP17483796A JP17483796A JP3454640B2 JP 3454640 B2 JP3454640 B2 JP 3454640B2 JP 17483796 A JP17483796 A JP 17483796A JP 17483796 A JP17483796 A JP 17483796A JP 3454640 B2 JP3454640 B2 JP 3454640B2
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- Prior art keywords
- article
- antibacterial
- antifungal
- algae
- proof
- Prior art date
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Description
【０００１】[0001]
【発明の属する技術分野】本発明は、抗菌・防黴・防藻
性を付与した物品、詳しくは、工業的あるいは日常にお
いて頻繁に利用されるステンレス、アルミニウム等の金
属材料、ガラス材料を除くセラミックス材料等からなる
物品に、抗菌・防黴・防藻性を付与した抗菌・防黴・防
藻性物品およびその製造方法に関するものである。TECHNICAL FIELD The present invention relates to an article provided with antibacterial / mildew-proof and algae-proof properties, and more specifically, ceramics excluding metal materials such as stainless steel and aluminum frequently used industrially or daily, and glass materials. The present invention relates to an antibacterial / mildew / algicidal article in which antibacterial / mildew / algicidal properties are imparted to an article made of materials and the like, and a method for producing the same.
【０００２】[0002]
【従来の技術】金属、ガラス、およびセラミックス材料
等からなる物品に抗菌・防黴・防藻性を付与する方法に
は大別すると２種類ある。一方は、抗菌・防黴・防藻剤
を材料の中に直接練り込む練り込み法で、金属、ガラ
ス、セラミックス製物品の場合は成形温度が高温である
ため、銀および銅等の抗菌剤を含む無機系の抗菌・防黴
・防藻剤が使用されている。2. Description of the Related Art There are roughly two types of methods for imparting antibacterial, antifungal and antialgal properties to articles made of metal, glass, ceramic materials and the like. One is a kneading method in which an antibacterial / mildew / algaeproofing agent is directly kneaded into the material. In the case of metal, glass, and ceramic articles, the molding temperature is high, so antibacterial agents such as silver and copper should be used. Inorganic antibacterial, antifungal, and algaeproofing agents are used.
【０００３】もう一方は、物品表面に抗菌・防黴・防藻
剤を含むコーティング層を形成するコーティング法で、
例えば抗菌・防黴・防藻剤を樹脂ビヒクルと共に各種溶
媒中に分散した塗料を塗布したり、釉成分に抗菌・防黴
・防藻剤を添加した釉薬を用いて施釉するものであり、
前者の場合は有機系、無機系両方の抗菌・防黴・防藻剤
が、そして後者の場合は無機系の抗菌・防黴・防藻剤が
使用されている。The other is a coating method for forming a coating layer containing an antibacterial, antifungal and antialgal agent on the surface of an article.
For example, an antibacterial / mildew / algaeproofing agent is coated with a resin vehicle in various solvents, or a glaze containing antibacterial / mildewage / algaeproofing agent added to a glaze component is used for glazing.
In the former case, both organic and inorganic antibacterial, antifungal and algae agents are used, and in the latter case, inorganic antibacterial, antifungal and algae agents are used.
【０００４】しかしながら、従来の抗菌性を付与する方
法においては、例えば練り込み法では、金属、ガラス、
およびセラミックス製物品の成形温度が高いため、耐熱
性の高い無機系の抗菌・防黴・防藻剤を用いてもなかな
か抗菌性が発現し難いこと、抗菌・防黴・防藻性を発現
させたとしても、抗菌・防黴・防藻剤が物品の内部深く
まで存在し、これが表面に付着した菌に対して何の有効
な作用も及ぼさないから不経済的である等の問題点があ
った（図１（イ）参照）。However, in the conventional methods for imparting antibacterial properties, for example, in the kneading method, metal, glass,
Since the molding temperature of ceramics and ceramics is high, it is difficult to develop antibacterial properties even with the use of highly heat-resistant inorganic antibacterial / mold / algae-proofing agents. Even so, there is a problem that it is uneconomical because the antibacterial / mildew / algae prevention agent exists deep inside the article and does not exert any effective action on the bacteria adhered to the surface. (See FIG. 1 (a)).
【０００５】また、コーティング法では、既に成形され
た材料表面に抗菌・防黴・防藻性を有する層を新たに形
成するため、練り込み法の経済的な不合理性はないが、
コーティング層のバインダー（樹脂ビヒクル、釉成分）
が比較的短期に摩耗等により消耗すること、コーティン
グ層の形成により物品の表面性質（例えば、色調、物性
等）を著しく変えてしまうことの他、抗菌・防黴・防藻
剤を釉成分に添加した釉薬を塗布・焼成する場合にあっ
ては、少なくとも 800℃以上の高温度下での焼き付け処
理であるために抗菌・防黴・防藻性が劣化する等の問題
点がある（図１（ロ）参照）。In addition, in the coating method, since a layer having antibacterial, antifungal and antialgal properties is newly formed on the surface of the material already molded, the kneading method has no economical absurdity,
Binder for coating layer (resin vehicle, glaze component)
Is consumed in a relatively short time due to abrasion, etc., and the surface properties (eg, color tone, physical properties, etc.) of the article are significantly changed due to the formation of the coating layer. In addition, antibacterial, antifungal and algae agents are used as glaze components. When the added glaze is applied and baked, there is a problem that the antibacterial, mildew-proof, and algae-proof properties are deteriorated because it is baked at a high temperature of at least 800 ° C (Fig. 1 (See (b)).
【０００６】[0006]
【発明が解決しようとする課題】本発明は、従来技術に
おける前記問題点に鑑みてなされたもので、抗菌・防黴
・防藻剤が物品表層部に集中して分布し、しかも摩滅等
により短期に、抗菌・防黴・防藻性が消耗せず、また加
熱処理により抗菌・防黴・防藻性が劣化することがな
く、しかもコーティング層が新たに形成されて物品の表
面性質が著しく変化することがない抗菌・防黴・防藻性
物品およびその製造方法を提供するものである。DISCLOSURE OF THE INVENTION The present invention has been made in view of the above problems in the prior art, in which an antibacterial / mold / antifungal agent is concentrated and distributed on the surface layer of an article, and further, due to abrasion or the like. Antibacterial, mildewproof and algaeproof properties are not consumed in a short period of time, and the antibacterial, mildewproof and algaeproof properties are not deteriorated by heat treatment, and a new coating layer is formed to remarkably improve the surface properties of the article. The present invention provides an antibacterial / antifungal / algalproof article that does not change and a method for producing the same.
【０００７】[0007]
【課題を解決するための手段】本発明における請求項１
に係る抗菌・防黴・防藻性物品は、金属およびセラミッ
クスからなる群から選ばれた物品と、銀、銅、銀−銅合
金からなる群から選ばれた少なくとも１種である抗菌・
防黴・防藻性成分とからなり、この抗菌・防黴・防藻性
成分が前記物品の表面から物品表層部の内部へ拡散し
て、前記抗菌・防黴・防藻性成分が拡散した物品表層部
と、この物品表層部よりも深部に形成された前記抗菌・
防黴・防藻性成分が実質的に拡散していない物品中央部
とが形成されたことを特徴とするものである。[Means for Solving the Problems] Claim 1 in the present invention
The antibacterial / mildew-proof / algae-proof article according to 1) is an article selected from the group consisting of metals and ceramics, and at least one kind of antibacterial article selected from the group consisting of silver, copper, and silver-copper alloys.
Consisting of antifungal and antialgal components, and the antibacterial, antifungal, and antialgal components diffuse from the surface of the article to the inside of the article surface layer, and the antibacterial, antifungal, and antialgal ingredients diffuse. Article surface layer portion, the antibacterial · formed in a deeper portion than the article surface layer portion
It is characterized in that a central part of the article in which the antifungal / algaeproof component is not substantially diffused is formed.
【０００８】そして、請求項２に係る抗菌・防黴・防藻
性物品の製造方法は、請求項１記載の抗菌・防黴・防藻
性物品の製造方法であって、銀、銅、銀−銅合金からな
る群から選ばれた少なくとも１種の微粒子からなる抗菌
・防黴・防藻性成分の分散液を、金属およびセラミック
スからなる群から選ばれた物品の所望表面に塗布し、前
記物品が焼結品の場合はその焼結温度未満、前記物品が
焼結品でない場合にはその溶融温度未満、前記物品表面
に予めコーティング層が形成されている場合にはそのコ
ーティング層の融点未満の温度のいずれかの温度にて加
熱処理することにより、前記抗菌・防黴・防藻性成分を
前記物品の表面から物品表層部の内部へ拡散させること
を特徴とするものである。The method for producing an antibacterial / mold / algae-proof article according to claim 2 is the method for manufacturing an antibacterial / mold / anti-algae article according to claim 1, which is silver, copper or silver. -Applying a dispersion liquid of an antibacterial / antifungal / algaeproof component comprising at least one kind of fine particles selected from the group consisting of copper alloys onto a desired surface of an article selected from the group consisting of metals and ceramics, If the article is a sinter, it is below the sintering temperature, if the article is not a sinter, it is below the melting temperature, and if a coating layer is previously formed on the surface of the article, below the melting point of the coating layer. The antibacterial / antifungal / algaeproof component is diffused from the surface of the article to the inside of the article surface layer by heat treatment at any one of the above temperatures.
【０００９】[0009]
【００１０】[0010]
【発明の実施の形態】図１に本発明による抗菌・防黴・
防藻性物品を従来の練込み法、コーティング法による物
品と比較して示す。本発明者等は、抗菌・防黴・防藻性
成分を物品表面に塗布し、比較的低温で加熱処理すれ
ば、従来技術の問題点を解決し得ることを見い出し、本
発明を完成した。本発明では、物品表面から物品表面層
の内部に、直接、抗菌・防黴・防藻性成分を拡散させる
ものである。すなわち、物品表面近傍には抗菌・防黴・
防藻性成分が多量に存在し、一方、物品中央部には抗菌
・防黴・防藻性成分がほとんど存在しておらず、さら
に、物品表面にバインダー成分や抗菌・防黴・防藻性成
分の融着膜が実質的に存在していない。したがって、物
品表面が少々磨滅するような場合でも、抗菌・防黴・防
藻性が消失することはなく、さらに、物品表面が別材料
によりコーティングされるわけではないから、物品表面
の性質、例えば物品の色調を著しく変えることがほとん
どない（図１（ハ）参照）。BEST MODE FOR CARRYING OUT THE INVENTION FIG. 1 shows an antibacterial / mildew-proofing according to the present invention.
The algae-proof article is shown in comparison with the articles prepared by the conventional kneading method and coating method. The present inventors have completed the present invention by finding that the problems of the prior art can be solved by applying an antibacterial / mildewproof / algalproofing component to the surface of an article and heat-treating at a relatively low temperature. In the present invention, the antibacterial / mold / antialgal component is directly diffused from the surface of the article to the inside of the article surface layer. In other words, antibacterial, antifungal,
There are a large amount of anti-algal components, while there are almost no anti-bacterial, anti-mildew, and anti-algal components in the center of the article. Substantially no fused film of components is present. Therefore, even when the surface of the article is slightly worn, the antibacterial / mold / anti-algal property is not lost, and the surface of the article is not coated with another material. The color tone of the article is hardly changed (see FIG. 1C).
【００１１】以下、実施の形態を具体的に説明する。抗
菌・防黴・防藻性成分を物品表面層の内部に拡散させる
には、抗菌・防黴・防藻性成分の微粒子分散液または溶
液（以下、塗布液という）を、物品の所望表面に塗布
し、加熱処理することにより、抗菌・防黴・防藻性成分
を物品表面から物品表層部の内方へ拡散させる。The embodiments will be specifically described below. To disperse the antibacterial / antifungal / algaeproof component inside the article surface layer, a fine particle dispersion or solution of the antibacterial / antifungal / algaeproof component (hereinafter referred to as coating liquid) is applied to the desired surface of the article. By applying and heat-treating, the antibacterial, antifungal, and antialgal components are diffused from the surface of the article to the inside of the surface layer of the article.
【００１２】抗菌・防黴・防藻処理される物品は、少な
くとも 200℃の加熱処理に耐えられるものでなくてはな
らず、例えば、金属、（ガラスを除く）セラミックス等
が挙げられる。そして、これら物品は、外部空間に連繋
する気孔を有している必要はなく、実質的にこのような
気孔を有していない緻密なものであっても良い。また、
これらの物品は、耐熱性のコーティング層、例えば、釉
がけ、ホウロウがけ等が予め施されていても良い。これ
らの物品は、塗布液を塗布する前に抗菌・防黴・防藻処
理面を十分に洗浄して汚れを取り除いておく。The article to be treated with antibacterial, mildewproof and algae must be able to withstand a heat treatment of at least 200 ° C., and examples thereof include metals and ceramics (excluding glass). Further, these articles do not need to have pores connected to the external space, and may be a dense article that does not substantially have such pores. Also,
These articles may be pre-coated with a heat resistant coating layer, such as glaze, enamel and the like. Before applying the coating liquid, the antibacterial, antifungal and algae proof surfaces of these articles are thoroughly washed to remove stains.
【００１３】抗菌・防黴・防藻性成分としては、耐熱性
に富み、かつオリゴジナミー効果を有するものであっ
て、加熱処理後に残存する有機系または無機系のバイン
ダー成分（例えば釉薬成分等）を含まないものを使用す
る。具体的な抗菌・防黴・防藻性成分としては、物品の
表層部の内部への拡散しやすさ、安全性、物品の表面性
質、例えば色調への影響がない等の点から銀、銅、銀−
銅合金のうちのいずれか１種または２種以上であること
が好ましい。As the antibacterial / mildewproof / algaeproof component, an organic or inorganic binder component (for example, a glaze component etc.) which is rich in heat resistance and has an oligodynamic effect and which remains after heat treatment is used. Use the one that is not included. Specific antibacterial, antifungal, and antialgal components include silver, copper from the viewpoint of ease of diffusion into the surface layer of the article, safety, and surface properties of the article, such as no influence on color tone. , Silver-
It is preferable that one or more of the copper alloys be used.
【００１４】塗布液は、上記の抗菌・防黴・防藻性成分
の微粒子を水や有機溶媒中に分散させるか、または溶解
させたものであり、界面活性剤を併用して物品表面への
ぬれ性を良くするのが好適である。塗布液の塗布法は、
刷毛塗り、ディップ、スプレーがけ等があり、特に制約
はない。The coating liquid is obtained by dispersing or dissolving the above-mentioned fine particles of the antibacterial / antifungal / algaeproofing component in water or an organic solvent. It is preferable to improve the wettability. The coating method of the coating liquid is
There are no particular restrictions, such as brush painting, dipping, and spraying.
【００１５】塗布液の抗菌・防黴・防藻性成分の濃度は
0.01 〜 10 ％が好適で、これより薄くすると充分な抗
菌・防黴・防藻性が得られず、これより濃くすると物品
表面に抗菌・防黴・防藻性成分の融着膜が形成された
り、汚れが残る場合が多くなる。また、塗布液中の抗菌
・防黴・防藻性微粒子の粒径は 10 μｍ以下とし、特に
0.1μｍ以下のコロイドとするのが好適である。コロイ
ド状の抗菌・防黴・防藻性微粒子を使用すると、物品表
層部の内部への拡散が容易に起こる。The concentration of antibacterial, antifungal and antialgal components of the coating solution is
0.01 to 10% is preferable, and if it is thinner than this, sufficient antibacterial, antifungal, and algae-proof properties cannot be obtained, and if it is thicker than this, a fused film of antibacterial, antifungal, and algaeproof components is formed on the article surface. In many cases, stains or stains remain. In addition, the particle size of the antibacterial, antifungal, and antialgal fine particles in the coating liquid should be 10 μm or less.
A colloid having a diameter of 0.1 μm or less is preferable. The use of colloidal antibacterial / antifungal / antialgal fine particles facilitates diffusion into the surface layer of the article.
【００１６】加熱処理温度は 200℃以上あれば良い。適
正な加熱処理温度は使用される物品の材質や使用される
抗菌・防黴・防藻性成分の種類により異なる。すなわ
ち、加熱処理温度は高いほど拡散速度が大きくなるので
200℃以上とし（ 200℃以下では銀、銅等の容易に拡散
する抗菌・防黴・防藻性成分でも拡散はほとんど起こら
ない）、かつ物品に悪影響（例えば、物品の色調変化や
物品強度の劣化）を与えない、そして抗菌・防黴・防藻
性成分の性能が劣化しない温度を選ぶ。The heat treatment temperature may be 200 ° C. or higher. The appropriate heat treatment temperature varies depending on the material of the article used and the type of antibacterial / mold / antialgae component used. That is, the higher the heat treatment temperature, the higher the diffusion rate.
Above 200 ° C (even below 200 ° C, almost no diffusion occurs even with easily diffused antibacterial, antifungal, and algae-proof components such as silver and copper), and adversely affects the product (for example, changes in product color tone and product strength) Select a temperature that does not cause deterioration) and does not deteriorate the performance of antibacterial, antifungal, and antialgal components.
【００１７】物品に悪影響を与えないためには、加熱処
理温度を、例えば、
物品が焼結品の場合にはその焼結温度未満、
物品が焼結品でない場合はその溶融温度未満、
物品表面に予めコーティング層（釉薬層、ホウロウ
層等）が形成されている場合には、コーティング層の融
点未満、のいずれかとする必要がある。すなわち、上記
の温度以上で加熱処理すると、物品の寸法精度、強度、
表面色調等に悪影響を与える。また、上記温度以下であ
っても、
物品の物性値が劣化する温度域、例えばステンレス
鋼にあっては 400〜800℃の温度範囲は避ける必要があ
る。
一方、抗菌・防黴・防藻性成分の性能が低下しないため
の適正な加熱温度は、使用する抗菌・防黴・防藻性成分
の種類により定まるが、通常、 800℃以下である。In order not to adversely affect the article, the heat treatment temperature is, for example, below the sintering temperature when the article is a sintered article, below the melting temperature when the article is not a sintered article, and the article surface. When a coating layer (glaze layer, enamel layer, etc.) is previously formed on, it is necessary to set it to either one of the melting points of the coating layer or less. That is, when heat treatment is performed at a temperature above the above, dimensional accuracy, strength, and
It adversely affects the surface color tone. Further, even if the temperature is lower than the above temperature, it is necessary to avoid the temperature range in which the physical properties of the article deteriorate, for example, the temperature range of 400 to 800 ° C for stainless steel. On the other hand, the appropriate heating temperature for keeping the performance of the antibacterial / mildew / algaeproof component is determined by the type of the antibacterial / mildew / algaeproof component to be used, but it is usually 800 ° C or lower.
【００１８】加熱処理時間は、使用する物品の種類、抗
菌・防黴・防藻性成分の種類、および抗菌・防黴・防藻
性成分を拡散させる深さにより定まる。通常、 10 分〜
100 時間程度である。例えば、代表的なセラミックス材
料である陶磁器の場合では 300℃程度で加熱することが
できる。この場合、 10 分程度の加熱で十分である。The heat treatment time is determined by the type of article used, the type of antibacterial / mold / antialgae component, and the depth of diffusion of the antibacterial / mold / antialgae component. Usually 10 minutes ~
It is about 100 hours. For example, ceramics, which is a typical ceramic material, can be heated at about 300 ° C. In this case, heating for about 10 minutes is sufficient.
【００１９】金属材料であるアルミニウムの場合、 500
℃程度で加熱する。 500℃程度の温度では３０分〜１時
間程度の加熱処理が必要となる。金属材料であるステン
レス鋼の場合、物品が 400〜800 ℃の範囲で強度低下す
るため、この温度範囲の上下で加熱するのが必要であ
る。 380℃では１時間程度の加熱が必要となり、 820℃
では数十分で済む。In the case of aluminum which is a metal material, 500
Heat at about ℃. At a temperature of about 500 ° C., heat treatment for about 30 minutes to 1 hour is required. In the case of stainless steel, which is a metallic material, it is necessary to heat the article above and below this temperature range because the strength of the article decreases in the range of 400 to 800 ° C. At 380 ℃, heating for about 1 hour is required, 820 ℃
Then dozens of minutes.
【００２０】塗布−加熱処理は、製品の製造工程中の加
熱処理工程を利用することもできる。例えば、金属材料
の場合、焼なまし、焼もどし等の熱処理工程があるが、
この加熱工程前に塗布液を塗布しておけば、焼なまし、
焼もどし工程が抗菌・防黴・防藻性付与工程にもなる。The coating-heat treatment can also utilize the heat treatment step in the manufacturing process of the product. For example, in the case of metal materials, there are heat treatment steps such as annealing and tempering,
If you apply the coating solution before this heating step, annealing,
The tempering process also serves as an antibacterial, mildew-proof, and algae-proofing process.
【００２１】加熱処理時の雰囲気は、特に制限されない
が、物品に何らかの影響を受けるときは、例えば、非酸
化性雰囲気とする。加熱処理時に、特に加圧する必要も
ないが、加圧すれば加熱処理時間を短縮することがで
き、更に、より深く拡散させることができる。The atmosphere at the time of heat treatment is not particularly limited, but when the article is affected in any way, the atmosphere is, for example, a non-oxidizing atmosphere. It is not necessary to pressurize during the heat treatment, but the pressurization can shorten the heat treatment time, and further allow deeper diffusion.
【００２２】加熱処理後、物品表面に、未拡散分が融着
膜を形成したり、不純物等を残留することがあるが、こ
れは酸洗いや研磨により容易に取り除くことができる。
抗菌・防黴・防藻性成分は物品表層部の内部に拡散して
いるので、未拡散分を取り除いた後においても抗菌・防
黴・防藻性が消失・低下することはなく、依然として良
好な抗菌・防黴・防藻性を有する。After the heat treatment, a non-diffused portion may form a fusion film or leave impurities on the surface of the article, which can be easily removed by pickling or polishing.
Since the antibacterial, mildewproof and algaeproof components are diffused inside the surface layer of the article, the antibacterial, mildewproof and algaeproof properties do not disappear or decrease even after removing the non-diffused portion, and it is still good. It has excellent antibacterial, antifungal and antialgal properties.
【００２３】抗菌・防黴・防藻性については、抗菌・防
黴・防藻性成分で物品表面に露出しているものが抗菌・
防黴・防藻性を発揮するものと考えられる。また、物品
表面が磨滅あるいは浸食されても、内部の抗菌・防黴・
防藻性成分が新しく露出するので、抗菌・防黴・防藻性
が低下することはない。いずれにしても、銀と銅に代表
される抗菌・防黴・防藻性成分を金属、（ガラスを除
く）セラミックス等の物品の表面に塗布し、加熱する
と、抗菌・防黴・防藻性成分が物品の内部に拡散し、こ
の物品の表面で抗菌・防黴・防藻性を示すようになる。Regarding the antibacterial / mold / algae-proof properties, the antibacterial / mold / anti-algae components exposed on the article surface are
It is considered to exhibit antifungal and antialgal properties. In addition, even if the surface of the article is worn or eroded, the internal antibacterial / mildew /
Since the algae-proof component is newly exposed, the antibacterial, mildew-proof and algae-proof properties are not deteriorated. In any case, when antibacterial, antifungal and algae proofing components represented by silver and copper are applied to the surface of articles such as metals and ceramics (excluding glass) and heated, antibacterial, antifungal and algae proof properties are obtained. The components diffuse inside the article and become antibacterial, mildew-proof, and algae-proof on the surface of the article.
【００２４】このように、本発明による実施の態様で
は、抗菌・防黴・防藻性成分がバインダー成分の存在な
しに物品の表面近傍に直接存在するため（図１（ハ）参
照）、従来における練り込み法の経済的問題や抗菌・防
黴・防藻性の低下、コーティング法の剥がれ、落ち、あ
るいは表面性質の変化等の問題が生じない。さらに、そ
の製造方法が、基本的に塗布して加熱するというもので
あるため、成形時の制約も小さい。As described above, in the embodiment according to the present invention, the antibacterial / antifungal / antialgal component is directly present in the vicinity of the surface of the article without the presence of the binder component (see FIG. 1C). There is no problem in the kneading method, such as economic problems, deterioration in antibacterial / mold / anti-algal properties, peeling / falling of the coating method, or change in surface properties. Furthermore, since the manufacturing method is basically coating and heating, there are few restrictions during molding.
【００２５】このため、外部空間に連繋する気孔を実質
的に有しない緻密質物品（ガラスを除く緻密質セラミッ
クス、金属等）であっても、抗菌・防黴・防藻性成分が
粒界、格子中を拡散して行き、抗菌・防黴・防藻性成分
を表層部奥深部まで拡散させることができる。この緻密
質物品の表面に抗菌・防黴・防藻性成分の微粒子を塗布
する際には、これらの微粒子を含有する分散液または溶
液を用いると、表層部内部に拡散させやすく、均一に拡
散させやすい。Therefore, even in the case of a dense article (dense ceramics other than glass, metal, etc.) which does not substantially have pores connected to the external space, the antibacterial / mold / antialgal component is present at the grain boundaries, The antibacterial, antifungal, and algaeproof component can be diffused in the lattice to the deep part of the surface layer. When applying fine particles of antibacterial, antifungal, and antialgal components to the surface of this dense article, use a dispersion liquid or solution containing these fine particles so that they can be easily diffused inside the surface layer part and evenly diffused. Easy to make.
【００２６】[0026]
【実施例】本発明を実施例により詳述する。ただし、本
発明はこれに限定されるものではない。なお、各物品は
塗布液を塗布する前に石鹸水で十分に洗浄したものを使
用した。EXAMPLES The present invention will be described in detail with reference to Examples. However, the present invention is not limited to this. Each article used was thoroughly washed with soapy water before applying the coating solution.
【００２７】[0027]
【００２８】（実施例１）
銅粉をテレピン油中で粉砕し、銅分散液（濃度１ｗｔ
％、平均粒径１ミクロン）を作成し、これをハケ塗りで
陶磁器（施釉品、陶磁器の焼結温度 1200 ℃、釉の融点
920℃）の表面に塗布（塗布量；１ｇ／ｍ2 ）した後、
大気中で温度 300℃により 10 分間加熱処理した。これ
により得られた陶磁器は若干青味を呈していたが、 10
ｗｔ％硝酸溶液で洗浄したところ元の外観となった。Example 1 Copper powder was ground in turpentine oil to give a copper dispersion (concentration 1 wt.
%, Average particle size 1 micron), and paint it with a brush to make ceramics (glazed product, sintering temperature of ceramics 1200 ℃, melting point of glaze)
After coating (coating amount; 1 g / m 2 ) on the surface at 920 ° C.,
Heat treatment was performed for 10 minutes at a temperature of 300 ° C in the atmosphere. The porcelain thus obtained had a slight bluish tint.
After washing with a wt% nitric acid solution, the original appearance was obtained.
【００２９】（実施例２）
クエン酸銀を水中で粉砕し、クエン酸銀分散液（濃度
0.5ｗｔ％、平均粒径0.5ミクロン）を作成し、これをア
ルミニウム板（密度 98.8 ％、融点 640℃）にスプレー
で塗布し（塗布量； 10 ｇ／ｍ2 ）、乾燥後、大気中で
温度 500℃により 30 分間加熱処理した。得られたアル
ミニウム板は処理前と外観的にほとんど変化がなかっ
た。(Example 2) Silver citrate was crushed in water to obtain a silver citrate dispersion (concentration).
0.5 wt%, average particle size 0.5 micron) was prepared and applied to an aluminum plate (density 98.8%, melting point 640 ° C) by spraying (coating amount; 10 g / m 2 ), dried, and then exposed to air in air. Heat treatment was performed at 500 ° C for 30 minutes. The appearance of the obtained aluminum plate was almost the same as that before the treatment.
【００３０】（実施例３）
硫酸銅をテレピン油中で粉砕し、硫酸銅分散液（濃度 2
％、平均粒径 2ミクロン）を作成し、これを溶製法によ
り得られた緻密なステンレス板（密度 99.5 ％、融点 1
400 ℃）にスプレー法で塗布し（塗布量； 0.5ｇ／
ｍ2 ）、水素雰囲気中で温度 400℃で 20 分間加熱し
た。得られたステンレス板表面に若干銅分が付着してい
たが、 10 ｗｔ％硝酸溶液で洗浄すると、もとの外観に
なった。Example 3 Copper sulfate was crushed in turpentine oil to give a copper sulfate dispersion (concentration 2).
%, Average particle size 2 micron), and the dense stainless steel plate (density 99.5%, melting point 1
400 ℃) by spraying method (Coating amount: 0.5g /
m 2 ) and heated in a hydrogen atmosphere at a temperature of 400 ° C. for 20 minutes. A small amount of copper was attached to the surface of the obtained stainless steel plate, but the original appearance was obtained when washed with a 10 wt% nitric acid solution.
【００３１】（実施例の評価）
実施例１〜３で作成した試験体の抗菌性を評価した。各
実施例で作成した試験体、および比較例１〜３として抗
菌・防黴・防藻処理を施さない各実施例の物品表面に、
黄色ブドウ球菌、枯草菌、大腸菌、肺炎桿菌、サルモネ
ラ菌、緑膿菌の各菌液を 0.1ｍｌのせ、温度 37 ℃で 2
4 時間放置した後の生存菌数を寒天平板法で測定した。
また、黴、藻についても、所定時間 27 ℃で培養し、発
生状況を目視観察した。その結果を表１，２に示す。(Evaluation of Examples) The antibacterial properties of the test pieces prepared in Examples 1 to 3 were evaluated. On the surface of the article prepared in each Example, and the article surface of each Example which is not subjected to antibacterial / mold / antialgae treatment as Comparative Examples 1 to 3,
Place 0.1 ml of Staphylococcus aureus, Bacillus subtilis, Escherichia coli, Klebsiella pneumoniae, Salmonella, and Pseudomonas aeruginosa at 2 ° C at 37 ° C.
The number of surviving bacteria after standing for 4 hours was measured by the agar plate method.
Also, mold and algae were cultured at 27 ° C for a predetermined time, and the generation state was visually observed. The results are shown in Tables 1 and 2.
【００３２】（比較例４）
実施例１の分散液から、テレピン油をアルコールで洗浄
除去して、銅の微粒子（平均粒子径１ミクロン）を得
た。この銅微粒子を含有する釉薬を実施例１の陶磁器と
同一の陶磁器に塗布し、大気中で 1200 ℃の条件下で加
熱処理した。こうして得られた陶磁器表面の、釉薬層中
の銅の含有量は、実施例１と同様に0.01 ｇ／ｃｍ2 で
あった。この施釉後の陶磁器を用い、実施例の場合に準
じて、抗菌・防黴・防藻性を評価した。その結果を表
１，２に併せて示す。Comparative Example 4 From the dispersion liquid of Example 1, turpentine oil was washed and removed with alcohol to obtain copper fine particles (average particle diameter 1 micron). The glaze containing the copper fine particles was applied to the same pottery as that of Example 1 and heat-treated in the atmosphere at 1200 ° C. The content of copper in the glaze layer on the surface of the ceramic thus obtained was 0.01 g / cm 2 as in Example 1. Using this glazed pottery, antibacterial, antifungal, and algaeproof properties were evaluated in accordance with the examples. The results are also shown in Tables 1 and 2.
【００３３】[0033]
【表１】 [Table 1]
【００３４】[0034]
【表２】 [Table 2]
【００３５】（実施例の評価結果）
表１では、すべての例、すべての菌において、抗菌・防
黴・防藻処理を実施したものは、菌数が 100 cfu／ml以
下に減少した。これに対して、抗菌・防黴・防藻処理を
実施していない比較例としての未処理物品の表面では、
菌数の減少はほとんどなかった。また、すべての実施例
において、抗菌・防黴・防藻処理を実施したものは、
黴、藻の発生が認められず、これに対して抗菌・防黴・
防藻処理を実施していない比較例としての未処理物品の
表面では、黴、藻の発生が認められた。従って、本発明
品は抗菌・防黴・防藻性を示すことが確認された。ま
た、抗菌・防黴・防藻処理後の物品表面を酸洗いしたも
の（実施例１，３）にも良好な抗菌・防黴・防藻性を示
すことが確認されたことから、抗菌・防黴・防藻性成分
は物品表面層の内部に拡散していることも確認された。
また、表１，２の結果から、比較例４は実施例１よりも
抗菌・防黴・防藻性に劣ることが判る。(Evaluation Results of Examples) In Table 1, in all of the examples and all of the bacteria, those subjected to antibacterial / mold / antialgae treatment showed a decrease in the number of bacteria to 100 cfu / ml or less. On the other hand, on the surface of the untreated article as a comparative example which has not been subjected to antibacterial / mold / anti-algae treatment,
There was almost no decrease in the number of bacteria. Further, in all the examples, those subjected to antibacterial / mildew / algae-proof treatment are:
No development of mold or algae was observed, and antibacterial / mold /
Generation of mold and algae was observed on the surface of the untreated article as a comparative example which was not subjected to the algae prevention treatment. Therefore, it was confirmed that the product of the present invention exhibits antibacterial, antifungal and antialgal properties. In addition, since it was confirmed that the article surface after the antibacterial / mildew / algae-proofing treatment was pickled (Examples 1 and 3) also showed good antibacterial / mildew / algae resistance, It was also confirmed that the mildew-proofing / algae-proofing components were dispersed inside the article surface layer.
Further, from the results of Tables 1 and 2, it is understood that Comparative Example 4 is inferior to Example 1 in antibacterial / mildew-proof / algal-proof property.
【００３６】[0036]
【発明の効果】以上のように、請求項１に係る抗菌・防
黴・防藻性物品では、金属およびセラミックスからなる
群から選ばれた物品と、銀、銅、銀−銅合金からなる群
から選ばれた少なくとも１種である抗菌・防黴・防藻性
成分とからなり、この抗菌・防黴・防藻性成分が前記物
品の表面から物品表層部の内部へ拡散して、前記抗菌・
防黴・防藻性成分が拡散した物品表層部と、この物品表
層部よりも深部に形成された前記抗菌・防黴・防藻性成
分が実質的に拡散していない物品中央部とが形成された
ことにより、拡散現象を利用して、物品表面から表層部
の内部までコーティング層を実質的に形成させずに、抗
菌・防黴・防藻性を付与することができ、金属材料、セ
ラミックス等の緻密な材料からなる物品に抗菌・防黴・
防藻性を付与することができるとともに、使用上の安全
性が高く、作業性を向上させることができ、しかも物品
の表面性質、例えば色調等に対する悪影響を及ぼすこと
がないようにすることができる。これにより、物品本体
が抗菌・防黴・防藻性を持つため、物品の特質を損なう
ことなく、また、摩耗による抗菌・防黴・防藻性の低
下、抗菌・防黴・防藻性成分の多すぎる使用量を防止す
ることができる。これらの材料は、水まわり品、病院用
具、日常品、建築材料、食器容器、各種機械等、清潔さ
が要求される部材に適用することができる。As described above, in the antibacterial / mildew-proof / algae-proof article according to claim 1, an article selected from the group consisting of metals and ceramics, and a group consisting of silver, copper, and a silver-copper alloy. The antibacterial / mildew / algae-proof component is at least one selected from the above, and the antibacterial / mildew / algae-proof component diffuses from the surface of the article to the inside of the article surface layer portion to form the antimicrobial.・
An article surface layer portion in which the mildew-proof and algae-proof component is diffused and a central portion of the article in which the antibacterial, mildew-proof and algae-proof ingredient is not substantially diffused are formed deeper than the article surface layer portion. As a result, by utilizing the diffusion phenomenon, it is possible to impart antibacterial, mildew-proof, and algae-proof properties without substantially forming a coating layer from the surface of the article to the inside of the surface layer portion. Antibacterial / mildew-proof products made of dense materials such as
It is possible to impart anti-algal properties, it is highly safe to use, it is possible to improve workability, and it is possible to prevent adverse effects on the surface properties of the article, such as color tone. . As a result, the body of the article has antibacterial, antifungal, and algae-proof properties, so the characteristics of the article are not impaired, and the antibacterial, antifungal, and algaeproof properties are reduced due to abrasion, and antibacterial, antifungal, and algaeproof components It is possible to prevent the use amount of too much. These materials can be applied to members that require cleanliness, such as water products, hospital tools, daily goods, building materials, tableware containers, and various machines.
【００３７】請求項２に係る抗菌・防黴・防藻性物品の
製造方法は、請求項１記載の抗菌・防黴・防藻性物品の
製造方法であって、銀、銅、銀−銅合金からなる群から
選ばれた少なくとも１種の微粒子からなる抗菌・防黴・
防藻性成分の分散液を、金属およびセラミックスからな
る群から選ばれた物品の所望表面に塗布し、前記物品が
焼結品の場合はその焼結温度未満、前記物品が焼結品で
ない場合にはその溶融温度未満、前記物品表面に予めコ
ーティング層が形成されている場合にはそのコーティン
グ層の融点未満の温度のいずれかの温度にて加熱処理す
ることにより、前記抗菌・防黴・防藻性成分を前記物品
の表面から物品表層部の内部へ拡散させるようにしたこ
とによって、製造方法が簡便であり、比較的低い温度で
処理することができ、抗菌・防黴・防藻性成分の性能が
劣化せずにすみ、また、外部空間に連繋する気孔を有し
ていない緻密質の物品にも抗菌・防黴・防藻性成分を容
易に拡散させることができ、抗菌・防黴・防藻性の耐久
性を向上させるとともに性能低下を防止し、抗菌・防黴
・防藻性成分の使用量が減少し、作業性を節減して、経
済性を高めることができる。The method for producing an antibacterial / mold / algae-proof article according to claim 2 is the method for manufacturing an antibacterial / mold / galleate-proof article according to claim 1, which is silver, copper or silver-copper. Antibacterial and antifungal, consisting of at least one type of fine particles selected from the group consisting of alloys
A dispersion of an anti-algal component is applied to the desired surface of an article selected from the group consisting of metals and ceramics, and if the article is a sintered product, it is below the sintering temperature, if the article is not a sintered product. Is subjected to heat treatment at a temperature lower than its melting temperature or a temperature lower than the melting point of the coating layer when a coating layer is formed on the surface of the article in advance, whereby the antibacterial, antifungal and antiproliferative properties are obtained. By allowing the algae component to diffuse from the surface of the article to the inside of the article surface layer, the manufacturing method is simple, and it can be treated at a relatively low temperature. The performance of the product does not deteriorate, and the antibacterial, antifungal, and algaeproof components can be easily diffused into dense articles that do not have pores that connect to the external space.・ When the durability of anti-algae is improved Preventing monitor performance degradation, reduces the amount of antibacterial, antifungal or anti-algae component, and reduced workability, it is possible to improve the economy.
【００３８】[0038]
【図１】抗菌・防黴・防藻性を付与した物品の抗菌・防
黴・防藻性成分の分布状態を模式的に示した断面図であ
り、それぞれ（イ）は従来の練り込み法、（ロ）はコー
ティング法、および（ハ）は本発明の方法によって抗菌
・防黴・防藻性を付与した物品を示す。FIG. 1 is a cross-sectional view schematically showing a distribution state of antibacterial / mildew / algaeproof components of an article having antibacterial / mildew / algaeproof properties, each of which (a) is a conventional kneading method. , (B) shows a coating method, and (c) shows an article provided with antibacterial / mold / antialgal properties by the method of the present invention.
１ 物品 ２ 抗菌・防黴・防藻性成分 ３ 表面 ４ バインダ 1 article 2 Antibacterial / mildew / algalproofing ingredients 3 surface 4 binders
フロントページの続き (72)発明者 井上 善智 千葉県船橋市豊富町585番地 住友大阪 セメント株式会社 新材料研究部内 (72)発明者 栗野 恭行 千葉県船橋市豊富町585番地 住友大阪 セメント株式会社 新材料研究部内 (56)参考文献 特開 平７−165478（ＪＰ，Ａ) 特開 平９−67143（ＪＰ，Ａ) 特開 平４−338138（ＪＰ，Ａ) 特開 平８−165364（ＪＰ，Ａ) 特開 平８−217492（ＪＰ，Ａ)Continued front page (72) Inventor Yoshitomo Inoue Sumitomo Osaka, 585 Tomimachi, Funabashi, Chiba Prefecture New Materials Research Department, Cement Co., Ltd. (72) Inventor Yasuyuki Kurino Sumitomo Osaka, 585 Tomimachi, Funabashi, Chiba Prefecture New Materials Research Department, Cement Co., Ltd. (56) Reference JP-A-7-165478 (JP, A) JP-A-9-67143 (JP, A) JP-A-4-338138 (JP, A) JP-A-8-165364 (JP, A) JP-A-8-217492 (JP, A)
Claims (2)
ばれた物品と、銀、銅、銀−銅合金からなる群から選ば
れた少なくとも１種である抗菌・防黴・防藻性成分とか
らなり、この抗菌・防黴・防藻性成分が前記物品の表面
から物品表層部の内部へ拡散して、前記抗菌・防黴・防
藻性成分が拡散した物品表層部と、この物品表層部より
も深部に形成された前記抗菌・防黴・防藻性成分が実質
的に拡散していない物品中央部とが形成されたことを特
徴とする抗菌・防黴・防藻性物品。1. A member selected from the group consisting of metals and ceramics.
Selected from the group consisting of exposed goods and silver, copper, silver-copper alloys
At least one antibacterial, antifungal, algaeproof component
This antibacterial, antifungal, and antialgal component is the surface of the article.
From the inside to the inside of the article surface layer portion, the article surface layer portion in which the antibacterial / mold / antialgal component is diffused, and the antibacterial / mold / antialgal component formed deeper than the article surface layer portion. An antibacterial, mildew-proof, and algae-proof article, characterized in that a central part of the article in which is substantially not diffused is formed .
製造方法であって、 銀、銅、銀−銅合金からなる群から選ばれた少なくとも
１種の微粒子からなる抗菌・防黴・防藻性成分の分散液
を、金属およびセラミックスからなる群から選ばれた物
品の所望表面に塗布し、前記物品が焼結品の場合はその
焼結温度未満、前記物品が焼結品でない場合にはその溶
融温度未満、前記物品表面に予めコーティング層が形成
されている場合にはそのコーティング層の融点未満の温
度のいずれかの温度にて加熱処理することにより、前記
抗菌・防黴・防藻性成分を前記物品の表面から物品表層
部の内部へ拡散させることを特徴とする抗菌・防黴・防
藻性物品の製造方法。 2.Of the antibacterial / mildew / algae-proof article according to claim 1.
A manufacturing method, At least one selected from the group consisting of silver, copper, and a silver-copper alloy.
Dispersion of antibacterial, antifungal and algaeproof component consisting of one kind of fine particles
Is selected from the group consisting of metals and ceramics
Applied to the desired surface of the article, if the article is a sintered article
Below the sintering temperature, if the article is not a
A coating layer is formed on the surface of the article below the melting temperature
Temperature below the melting point of the coating layer, if
The heat treatment at any temperature
Antibacterial, mildew-proof, and anti-algal components are applied to the surface of the article from the surface of the article.
Antibacterial, mildewproof, and anti-mold, characterized by being diffused into the interior of the part
A method for manufacturing an algae article.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17483796A JP3454640B2 (en) | 1996-07-04 | 1996-07-04 | Antibacterial / antifungal / algae-resistant article and method for producing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17483796A JP3454640B2 (en) | 1996-07-04 | 1996-07-04 | Antibacterial / antifungal / algae-resistant article and method for producing the same |
Related Child Applications (2)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000229550A Division JP2001097741A (en) | 2000-07-28 | 2000-07-28 | Antibacterial, mildew-proofing and algae-proofing article and its production |
| JP2000365502A Division JP2001220305A (en) | 2000-11-30 | 2000-11-30 | Antibacterial, mildewproof and algaproof article and method for producing the same |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH1015041A JPH1015041A (en) | 1998-01-20 |
| JP3454640B2 true JP3454640B2 (en) | 2003-10-06 |
Family
ID=15985528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17483796A Expired - Lifetime JP3454640B2 (en) | 1996-07-04 | 1996-07-04 | Antibacterial / antifungal / algae-resistant article and method for producing the same |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3454640B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB9819303D0 (en) * | 1998-09-05 | 1998-10-28 | Dynamic Ceramic Limited | Material |
| JP2000154106A (en) * | 1998-11-17 | 2000-06-06 | Casio Comput Co Ltd | Antimicrobal article and its production |
| JP2001220305A (en) * | 2000-11-30 | 2001-08-14 | Sumitomo Osaka Cement Co Ltd | Antibacterial, mildewproof and algaproof article and method for producing the same |
| US6921546B2 (en) * | 2003-02-20 | 2005-07-26 | Gemtron Corporation | Antimicrobial glass and glass-like products and method of preparing same |
| JP5358877B2 (en) * | 2006-10-27 | 2013-12-04 | 住友電気工業株式会社 | Antibacterial ceramic product, ceramic surface treatment agent, and method for manufacturing antibacterial ceramic product |
| WO2021149725A1 (en) * | 2020-01-21 | 2021-07-29 | 日鉄ステンレス株式会社 | Stainless steel material having antibacterial properties and antiviral properties and method for manufacturing same |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04338138A (en) * | 1991-05-10 | 1992-11-25 | Tadashi Yasui | Bactericidal glass and its production |
| JPH07165478A (en) * | 1993-12-13 | 1995-06-27 | Toagosei Co Ltd | Antimicrobial porcelain or enameled product |
| JPH08165364A (en) * | 1994-12-14 | 1996-06-25 | Aica Kogyo Co Ltd | Production of antibacterial decorative thermosetting |
| JP3026732B2 (en) * | 1995-02-08 | 2000-03-27 | 神鋼パンテツク株式会社 | Construction method of antibacterial glass coating |
| JPH0967143A (en) * | 1995-08-30 | 1997-03-11 | Inax Corp | Production of antimicrobial glass composition |
-
1996
- 1996-07-04 JP JP17483796A patent/JP3454640B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH1015041A (en) | 1998-01-20 |
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