JPH08120496A - Formation of electrodeposition coating film containing antimicrobial agent - Google Patents
Formation of electrodeposition coating film containing antimicrobial agentInfo
- Publication number
- JPH08120496A JPH08120496A JP28487294A JP28487294A JPH08120496A JP H08120496 A JPH08120496 A JP H08120496A JP 28487294 A JP28487294 A JP 28487294A JP 28487294 A JP28487294 A JP 28487294A JP H08120496 A JPH08120496 A JP H08120496A
- Authority
- JP
- Japan
- Prior art keywords
- electrodeposition coating
- antibacterial agent
- coating film
- coated
- film containing
- 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]
【産業上の利用分野】本発明は抗菌性を有する金属銀を
強固に担持したリン酸カルシウムのセラミックス微粒子
よりなる抗菌剤を、電着塗装の特性である均一な被覆性
を応用し、被塗装物表面に均一に共析させ、電着塗装皮
膜の特性に抗菌作用を付加させた被膜を得ることのでき
る、抗菌剤を含有する電着塗装被膜の形成方法に関する
ものである。材料となる抗菌剤は、リン酸カルシウム
（ハイドロキシアパタイトあるいはリン酸３カルシウ
ム）と銀化合物の混合物を１０００℃以上の高温で焼結
することにより、化合物中の銀イオンを焼結過程で金属
銀となし、化学的にはリン酸カルシウムと金属銀の焼結
混合したセラミック体として得られるものを利用するこ
とができる。今日、抗菌剤は生活の中に普及し利用され
ている。この抗菌剤を常時身体に装着する装身具、腕時
計、メガネフレーム等に応用すれば、日々の雑菌に対す
る抗菌効果の期待は大きい。また、食品、医薬品の工
場、あるいは病院等の衛生面での配慮が特に必要な施設
において、ドアノブや蛇口等、直接人手が触れるような
建築金物、水栓器具類に応用してもその抗菌効果は非常
に有効である。BACKGROUND OF THE INVENTION The present invention applies an antibacterial agent composed of ceramic fine particles of calcium phosphate strongly supporting metallic silver having antibacterial properties to the surface of an object to be coated by applying the uniform coating property which is a characteristic of electrodeposition coating. The present invention relates to a method for forming an electrodeposition coating film containing an antibacterial agent, which enables a film in which the antibacterial action is added to the properties of the electrodeposition coating film to be uniformly co-deposited with the above. The antibacterial agent used as a material is a mixture of calcium phosphate (hydroxyapatite or tricalcium phosphate) and a silver compound, which is sintered at a high temperature of 1000 ° C. or higher to form silver ions in the compound into metallic silver during the sintering process. Chemically, a ceramic body obtained by sintering and mixing calcium phosphate and metallic silver can be used. Today, antibacterial agents are widely used and used in daily life. If this antibacterial agent is applied to jewelry, wristwatches, eyeglass frames, etc. that are always worn on the body, the antibacterial effect against various bacteria is expected every day. The antibacterial effect can be applied to building hardware and faucet equipment such as doorknobs and faucets that are directly touched by humans in facilities where hygiene considerations are required, such as food and pharmaceutical factories or hospitals. Is very effective.
【０００２】[0002]
【従来の技術】従来、銀、銅、亜鉛等の抗菌性を有する
金属または金属塩を含有する抗菌剤は数多く発表されて
いる。その用法としては、合成樹脂、合成繊維等の原材
料に抗菌剤を練り込みそれらを成形加工する方法、塗料
に抗菌剤を混合して塗装する方法等の報告は種々ある。
しかし以上のような抗菌性金属または金属塩を含有する
抗菌剤は、金属イオンの溶出等による変色、抗菌力の低
下等の経時変化を来すものが多く、問題となっていた。
また、電着塗装技術は以前より確立されており、広範囲
において実用化された実績も十分にある。しかし、本発
明のように電着塗装溶液中に抗菌剤を分散させ、被塗装
物の金属の色調、光沢、表面状態をそのまま保持し、電
着塗装被膜表面に抗菌剤を共析させるという方法は未だ
発表されていない。また、金、プラチナ及びそれらの合
金からなる、いわゆる貴金属製の装身具に電着塗装を施
す報告も殆どない。2. Description of the Related Art Conventionally, many antibacterial agents containing antibacterial metals or metal salts such as silver, copper and zinc have been announced. There are various reports on its use, such as a method in which an antibacterial agent is kneaded into a raw material such as a synthetic resin or a synthetic fiber, and a molding process thereof, a method in which an antibacterial agent is mixed with a coating material, and coating is performed.
However, many of the above-mentioned antibacterial agents containing an antibacterial metal or a metal salt have been problematic because they often change over time, such as discoloration due to elution of metal ions and a decrease in antibacterial activity.
In addition, the electrodeposition coating technology has been established for a long time and has a good track record of being put to practical use in a wide range. However, a method in which an antibacterial agent is dispersed in an electrodeposition coating solution as in the present invention, the color tone, luster, and surface state of the metal of an object to be coated are maintained as they are, and the antibacterial agent is co-deposited on the surface of the electrodeposition coating film. Has not been announced yet. In addition, there are almost no reports of applying so-called precious metal jewelry made of gold, platinum and their alloys by electrodeposition.
【０００３】[0003]
【発明が解決しようとする課題】そこで、本発明者は電
着塗装により電着塗装被膜上に抗菌剤を共析させる方法
を提案するものである。しかしながら電着塗装溶液は繊
細な溶液であり、酸、アルカリ、金属イオンあるいは有
機物等の不純物の混入に対して鋭敏に反応し、外観不
良、密着不良等の不具合を生じ易い。一般に電着塗装溶
液中では抗菌剤中の金属イオンが溶出し易いため、抗菌
剤は不純物として作用し、外観、密着性の優れた電着塗
装被膜を得ることはできない。そこで、抗菌剤が不純物
として作用しないような、すなわち、金属イオンの溶出
がなく、経時変化による変色、抗菌力の低下を起こすこ
とのない抗菌剤及び電着塗装溶液の選択が重要な課題と
なる。Therefore, the present inventor proposes a method of co-depositing an antibacterial agent on the electrodeposition coating film by electrodeposition coating. However, the electrodeposition coating solution is a delicate solution and reacts sensitively to the inclusion of impurities such as acids, alkalis, metal ions or organic substances, and easily causes defects such as poor appearance and poor adhesion. Generally, in the electrodeposition coating solution, metal ions in the antibacterial agent are easily eluted, so that the antibacterial agent acts as an impurity and an electrodeposition coating film excellent in appearance and adhesion cannot be obtained. Therefore, it is an important issue to select an antibacterial agent and an electrodeposition coating solution that prevent the antibacterial agent from acting as an impurity, that is, there is no elution of metal ions, discoloration due to aging and no decrease in antibacterial activity. .
【０００４】また、金、プラチナ及びそれらの合金から
なる、いわゆる貴金属製の装身具に電着塗装を施すこと
は、貴金属製品の特有な高級感を損ねるという感覚的な
慣習があり、敬遠されることが多い。さらに、複雑、微
細な形状、構造の多い装身具や腕時計部品、メガネフレ
ーム等に電着塗装を施すことにより、その機能に支障を
来す恐れがある。本発明は、以上のような感覚的な慣習
から脱却し、貴金属製品としての装身具に抗菌剤を含有
する電着塗装被膜処理を施すことにより、貴金属製品特
有の色調、光沢、表面状態を素材金属そのままに保持
し、全く違和感を感じさせない外観を呈し、複雑、微細
な形状、構造の被塗装物の機能を損ねることのない抗菌
剤を含有する電着塗装被膜の形成方法を得ることを目的
とするものである。[0004] Also, applying so-called noble metal jewelry made of gold, platinum and alloys thereof to electrodeposition coating has a sensory custom of impairing the high-class feeling peculiar to precious metal products and should be avoided. There are many. Further, by applying electro-deposition coating to accessories, wrist watch parts, spectacle frames, etc. having a complicated, fine shape and a large number of structures, there is a risk that their functions will be impaired. The present invention is to remove the above-mentioned sensual customs, and by applying an electrodeposition coating film treatment containing an antibacterial agent to jewelry as a precious metal product, the color tone, luster and surface state peculiar to the precious metal product can be used as a raw material metal. The purpose of the present invention is to obtain a method for forming an electrodeposition coating film containing an antibacterial agent that retains the state as it is, exhibits an appearance that does not give a feeling of strangeness at all, and does not impair the function of an object to be coated having a complicated, fine shape and structure. To do.
【０００５】[0005]
【課題を解決するための手段】本発明は以上のような課
題を解決し、目的を達成するため、次のような抗菌剤を
含有する電着塗装被膜の形成方法を提供するものであ
る。すなわち、リン酸カルシウムと金属銀の焼結混合し
たセラミックス微粒子よりなる抗菌剤を電着塗装溶液中
に均一に分散させ、該溶液中にて被塗装物と極板間に電
圧を印加して直流通電を行なうことにより、被塗装物表
面に抗菌剤が共析した被膜を得ることを特徴とする抗菌
剤を含有する電着塗装被膜の形成方法である。本発明に
おいては抗菌剤及び電着塗装溶液の選択が重要な要素と
なる。すなわち、抗菌剤そのものの特性としては、安定
性、耐久性、耐熱性、抗菌力の持続性、人体に対する安
全性を有し、経時変化を起こさない微粒子であり、更に
電着塗装溶液に対して不溶かつ安定であり、悪影響を与
えず、分散が容易なものでなければならない。得られる
電着塗装被膜は、均一、美麗な外観を呈し、抗菌性に優
れ、耐久性に富み、人体に対し安全であり、素材金属の
色調、光沢、表面状態をそのままに保持し、なおかつ装
身具や腕時計部品、メガネフレーム等においては金属ア
レルギー防止効果を具備したものでなければならない。
以上の選定条件を考慮し選択した抗菌剤は、抗菌力を有
する銀を強固に担持した粒径０. ５〜２μｍのリン酸カ
ルシウムのセラミックス微粒子である。（市販品：商品
名 アパサイダーＡＷ／（株）サンギ社製）また、電着
塗装溶液は樹脂固形分１０％アクリル−メラミン系アニ
オン型を使用した。（市販品：商品名ハニーブライトＣ
−１／ハニー化成（株）社製） 次に、抗菌剤を電着塗装溶液中にいかに均一に分散させ
るかが、本発明の重要な要素の一つである。回転子、プ
ロペラ等の回転力を利用した機械的攪拌若しくは循環ポ
ンプ等を利用した液の対流による攪拌、超音波発振器等
を利用した振動による撹拌、またそれらの撹拌方法の組
み合わせ等、色々考えられるが、使用する槽の形状、大
きさ；極板の形状、大きさ、設置位置；被塗装物の形
状、大きさ等により適宜、装置設計をする必要がある。
攪拌強度は抗菌剤が電着塗装溶液中に均一に分散し、沈
降しない程度にできるだけ穏やかな方が望ましい。ま
た、均一美麗な外観、密着性の良い電着塗装被膜を得る
には、電圧を印加する際に、瞬時に所定電圧を印加させ
ずに、徐々に所定電圧まで上げる印加方法が望ましい。
電着塗装被膜処理を施すことにより被塗装物の機能を損
なう例として、ネックレス、ブレスレット等の微細な鎖
構造のもの、時計バンドのような微細な嵌合構造を有す
るものは、鎖或いはバンドとしての自在性が失われる。
また、イヤリングやメガネフレームのように微細なネジ
構造を有するものは、電着塗装被膜の厚みによりネジと
しての機能を損なう場合がある。以上のような不具合
は、電着塗装処理を施す際に被塗装物の形状、構造、機
能等をよく考慮し、膜厚の調整、治具の工夫等、電着条
件、方法等を調整することによって回避することができ
る。In order to solve the above problems and achieve the object, the present invention provides the following method for forming an electrodeposition coating film containing an antibacterial agent. That is, an antibacterial agent composed of ceramic fine particles obtained by sintering and mixing calcium phosphate and metallic silver is uniformly dispersed in an electrodeposition coating solution, and a voltage is applied between the object to be coated and the electrode plate in the solution to apply direct current. This is a method for forming an electrodeposition coating film containing an antibacterial agent, which comprises obtaining a film in which an antibacterial agent is co-deposited on the surface of an object to be coated. In the present invention, selection of the antibacterial agent and the electrodeposition coating solution is an important factor. That is, the characteristics of the antibacterial agent itself are fine particles that have stability, durability, heat resistance, durability of antibacterial activity, and safety for the human body, and do not change over time. It must be insoluble and stable, have no adverse effects and are easy to disperse. The electrodeposition coating film obtained has a uniform and beautiful appearance, has excellent antibacterial properties, is highly durable, is safe for the human body, and retains the color tone, luster, and surface condition of the material metal as it is, and is also an accessory. The wristwatch parts, eyeglass frames, etc. must have a metal allergy-preventing effect.
The antibacterial agent selected in consideration of the above selection conditions is ceramic particles of calcium phosphate having a particle size of 0.5 to 2 μm, which strongly supports silver having antibacterial activity. (Commercial product: trade name Apacider AW / manufactured by Sangi Co., Ltd.) Further, the electrodeposition coating solution used was an acrylic-melamine-based anion type resin solid content 10%. (Commercial item: Product name Honey Bright C
-1 / Honey Kasei Co., Ltd.) Next, how to uniformly disperse the antibacterial agent in the electrodeposition coating solution is one of the important elements of the present invention. There are various possibilities such as mechanical agitation using the rotational force of a rotor or propeller, agitation by liquid convection using a circulation pump, agitation by vibration using an ultrasonic oscillator, or a combination of these agitation methods. However, it is necessary to properly design the device depending on the shape and size of the tank to be used; the shape and size of the electrode plate, the installation position; the shape and size of the object to be coated.
The stirring strength is preferably as gentle as possible so that the antibacterial agent is uniformly dispersed in the electrodeposition coating solution and does not settle. Further, in order to obtain an electrodeposition coating film having a uniform and beautiful appearance and good adhesiveness, it is desirable to apply a voltage by gradually increasing the voltage to a predetermined voltage without applying the predetermined voltage instantaneously.
As an example of impairing the function of the object to be coated by applying the electrodeposition coating film, one with a fine chain structure such as a necklace or bracelet, or one with a fine fitting structure such as a watch band is used as a chain or band. Loses its flexibility.
Further, those having a fine screw structure such as earrings and eyeglass frames may impair the function as a screw due to the thickness of the electrodeposition coating film. Regarding the above problems, the shape, structure, function, etc. of the object to be coated should be carefully considered when performing the electrodeposition coating process, and the film thickness adjustment, jig design, etc., electrodeposition conditions, methods, etc. should be adjusted. It can be avoided by
【０００６】[0006]
【作用】電着塗装溶液中に抗菌剤を分散させ、被塗装物
と極板間に電圧を印加し、直流通電を行って被塗装物の
被膜表面に抗菌剤を含有する電着塗装被膜を形成させ
る。[Function] An antibacterial agent is dispersed in an electrodeposition coating solution, a voltage is applied between the object to be coated and an electrode plate, and direct current is applied to form an electrodeposition coating film containing the antibacterial agent on the surface of the object to be coated. Let it form.
【０００７】[0007]
実施例１ 図１のような原理の装置を使用し、良く脱脂洗浄した試
験片（３）を陽極、ステンレス板（２）を陰極とし抗菌
剤の分散量を電着塗装溶液中の樹脂固形分に対し２％、
５％、７％、１０％、１５％と変化させた抗菌剤分散電
着塗装溶液（６）中にてソフトスタート付直流整流器
（４）を用い、電圧を印加し直流通電を行い、純水水
洗、水切り処理、予備乾燥（５０〜６０℃ １０分以
上）、焼付処理を施し、得られた試験片の外観、密着性
試験を行った。その際、印加電圧を１０、２５、５０、
７５、１００、１２５、１５０、２００ボルトと変化さ
せ各々の組み合わせにより判定した結果を表１に示す。 ・電着条件：１０〜２００Ｖ、３０秒、液温２５±０.
５℃ ・焼付処理：１８０℃、３０分 ・外観試験：肉眼及びルーペ（×１０）にて表面観察 ・密着試験：クロスカット後テープ剥離試験 ・試験片：３×３ｃｍのＫ１８地金Example 1 Using a device having the principle as shown in FIG. 1, a test piece (3) that has been thoroughly degreased and washed is used as an anode, and a stainless steel plate (2) is used as a cathode, and the dispersed amount of the antibacterial agent is the resin solid content in the electrodeposition coating solution. 2% against
Using a DC rectifier (4) with a soft start in an antibacterial agent dispersion electrodeposition coating solution (6) that has been changed to 5%, 7%, 10%, or 15%, a voltage is applied to perform DC energization, and pure water is applied. Washing with water, draining treatment, preliminary drying (50 to 60 ° C. for 10 minutes or more), and baking treatment were performed, and the appearance and adhesion test of the obtained test piece were performed. At that time, the applied voltage is 10, 25, 50,
Table 1 shows the results of judgments made by varying the combinations of 75, 100, 125, 150, and 200 volts.・ Electrodeposition condition: 10 to 200 V, 30 seconds, liquid temperature 25 ± 0.
5 ° C ・ Baking treatment: 180 ° C, 30 minutes ・ Appearance test: Surface observation with naked eyes and magnifying glass (× 10) ・ Adhesion test: tape peeling test after crosscut ・ Test piece: K18 metal of 3 × 3 cm
【表１】 上記の試験結果より、抗菌剤分散量５〜１０％、印加電
圧２５〜７５Ｖの条件下における電着塗装被膜が均一
性、外観の美しさ、密着性の点で優れていることが分か
った。[Table 1] From the above test results, it was found that the electrodeposition coating film under the conditions of the antibacterial agent dispersion amount of 5 to 10% and the applied voltage of 25 to 75 V was excellent in uniformity, appearance and adhesion.
【０００８】実施例２ 次に電着条件の変化（印加電圧の変化）に伴う抗菌剤を
含有する電着塗装被膜の膜厚、抗菌剤共析量、抗菌効果
の変化を測るために、抗菌剤分散量を５％一定とし、印
加電圧を１０、２５、５０、７５、１００、１２５、１
５０、２００ボルトと変化させ、得られた試験片にて試
験した結果を表２に示す。 ・電着条件：１０〜２００Ｖ、３０秒、液温２５±０.
５℃ ・焼付処理：１８０℃、３０分 ・膜厚、抗菌剤分散量の測定は被膜重量法及び原子吸光
法による。 ・抗菌効果試験は培養した大腸菌を懸濁させたリン酸緩
衝液に各々の試験片を入れ、２４時間、４８時間振盪さ
せ各処理菌液について生菌数を測定。 ・試験片：３×３ｃｍのＫ１８地金Example 2 Next, in order to measure the change in the film thickness of the electrodeposition coating film containing the antibacterial agent, the amount of the antibacterial agent co-deposited, and the antibacterial effect with the change of the electrodeposition conditions (change of applied voltage), the antibacterial effect was measured. The amount of agent dispersion is kept constant at 5% and the applied voltage is 10, 25, 50, 75, 100, 125, 1
Table 2 shows the test results of the test pieces obtained by changing the voltage to 50 and 200 volts.・ Electrodeposition condition: 10 to 200 V, 30 seconds, liquid temperature 25 ± 0.
5 ° C.-Baking treatment: 180 ° C., 30 minutes-Film thickness and antibacterial agent dispersion amount are measured by a coating weight method and an atomic absorption method.・ In the antibacterial effect test, each test piece was placed in a phosphate buffer solution in which cultured Escherichia coli was suspended, and the mixture was shaken for 24 hours and 48 hours, and the viable cell count was measured for each treated bacterial solution.・ Test piece: K18 metal of 3 × 3 cm
【表２】 上記の試験結果より、抗菌剤分散量５％においては、印
加電圧１０〜２００Ｖの範囲では何れも十分な抗菌作用
が発揮されることが分かった。[Table 2] From the above test results, it was found that when the amount of dispersed antibacterial agent was 5%, a sufficient antibacterial action was exhibited in the range of applied voltage of 10 to 200V.
【０００９】実施例３ 更に抗菌剤分散量の変化に伴う、抗菌剤を含有する電着
塗装被膜の抗菌効果を確認するために電着条件を印加電
圧５０Ｖ一定とし、抗菌剤分散量を２％、５％、７％、
１０％、１５％と変化させ実施例２と同様の試験を行っ
た結果を表３に示す。Example 3 Further, in order to confirm the antibacterial effect of the electrodeposition coating film containing the antibacterial agent in accordance with the change in the antibacterial agent dispersion amount, the electrodeposition condition was fixed at an applied voltage of 50 V and the antibacterial agent dispersion amount was 2%. 5%, 7%,
Table 3 shows the results of the same test as in Example 2 except that the amount was changed to 10% and 15%.
【表３】 上記の試験結果より、印加電圧５０Ｖにおいては、抗菌
剤分散量２〜１５％の範囲では何れも十分な抗菌効果を
発揮することが分かった。[Table 3] From the above test results, it was found that at an applied voltage of 50 V, any antibacterial agent dispersion amount of 2 to 15% exhibited a sufficient antibacterial effect.
【００１０】実施例４ 抗菌剤を含有する電着塗装被膜の安全性の確認のため、
該被膜を生理食塩液にて４０℃、７２時間抽出して得ら
れた試験液を用いて、ウサギにおける皮膚刺激性試験
を、ＯＥＣＤ化学物質試験法ガイドライン「４０４急性
皮膚刺激性／腐食性試験法」(1992)、及びFederal Regi
ster 37,27635(1972) 「皮膚一次刺激性試験法」に準拠
して実施した。その結果、生理食塩液抽出試験液を適用
後９６時間の観察において、非擦過傷皮膚及び擦過傷皮
膚のいずれの適用箇所にも紅斑及び浮腫は認められず、
一次刺激性指数は０であった。従って、抗菌剤を含有す
る電着塗装被膜の生理食塩液抽出液の、ウサギにおける
皮膚一次刺激性は認められなかった。Example 4 To confirm the safety of an electrodeposition coating film containing an antibacterial agent,
Using a test solution obtained by extracting the coating film with physiological saline at 40 ° C. for 72 hours, a skin irritation test in rabbits was conducted according to the OECD chemical substance test method guideline “404 Acute skin irritation / corrosion test method”. (1992), and Federal Regi.
ster 37,27635 (1972) "Primary skin irritation test method" was performed. As a result, no erythema or edema was observed in any of the non-abraded skin and the abraded skin in the application site in 96 hours after the application of the physiological saline extraction test solution.
The primary irritation index was 0. Therefore, the skin irritation in rabbits of the physiological saline solution extract of the electrodeposition coating film containing the antibacterial agent was not recognized.
【００１１】実施例５ Ｋ１８製ネックレスに抗菌剤分散量５％、電着塗装条件
５０Ｖ−３０秒、焼付処理１８０℃−３０分にて処理し
たものを金属アレルギー症状を有する女性４人に３ケ月
間装着した結果、全く異常が認められなかった。Example 5 A K18 necklace treated with an antibacterial agent dispersion amount of 5%, electrodeposition coating condition of 50V-30 seconds, and baking treatment of 180 ° C-30 minutes for 4 women with metal allergy symptoms for 3 months. As a result of being worn for a while, no abnormality was recognized.
【００１２】実施例６ 抗菌剤を含有する電着塗装被膜の一般的な物性試験を行
った結果を表４に示す。 ・電着条件：抗菌剤分散量５％、印加電圧５０Ｖ ・焼付処理：１８０℃、３０分 ・試験片：５×１０ｃｍの黄銅板に銅めっき→ニッケル
めっき→金めっきを施し、抗菌剤を含有する電着塗装処
理を行った。Example 6 Table 4 shows the results of a general physical property test of an electrodeposition coating film containing an antibacterial agent.・ Electrodeposition condition: Dispersion amount of antibacterial agent 5%, applied voltage 50V ・ Baking treatment: 180 ° C, 30 minutes ・ Test piece: 5 × 10 cm brass plate is copper plated → nickel plated → gold plated and contains antibacterial agent The electrodeposition coating process was performed.
【表４】 上記の試験結果より、抗菌剤を含有する電着塗装被膜
は、抗菌剤を共析させることによる物性面での変化は無
く、従来の電着塗装被膜と物性面で同等である。[Table 4] From the above test results, the electrodeposition coating film containing the antibacterial agent does not change in physical properties by co-deposition of the antibacterial agent, and is equivalent in physical properties to the conventional electrodeposition coating film.
【００１３】実施例１〜６の結果より、抗菌剤の分散量
は電着塗装溶液中の樹脂固形分に対して５〜１０重量
％、また、電着塗装時の印加電圧は２５〜７５Ｖにて行
うのが望ましく、作業性、経済性、仕上がり状態も優
れ、抗菌効果も十分得られ、人体に対して安全であり、
なおかつ金属アレルギー防止効果も十分期待できる。From the results of Examples 1 to 6, the dispersed amount of the antibacterial agent was 5 to 10% by weight based on the resin solid content in the electrodeposition coating solution, and the applied voltage during electrodeposition coating was 25 to 75V. It is desirable to perform it in a good manner, it has excellent workability, economic efficiency, finished state, sufficient antibacterial effect is obtained, it is safe for human body,
Moreover, the effect of preventing metal allergies can be expected sufficiently.
【００１４】[0014]
【発明の効果】抗菌剤を含有する電着塗装被膜処理を施
した貴金属製の装身具は、貴金属製品の持つ高級感を損
なうことなく、また、複雑、微細な形状、構造を有する
装身具、腕時計部品、メガネフレーム等の機能に支障を
来すこともなく、被塗装物の金属特有の色調、光沢等を
保持したまま、均一美麗な外観を呈し、耐久性に富み、
人体に対して安全であり、抗菌効果も十分に得られ、更
に金属アレルギー症状を有する人でも安全に使用できる
ものである。建築金物、水栓器具類においては、特に衛
生面に配慮を要する施設等に使用することにより、その
抗菌効果は非常に有用である。EFFECTS OF THE INVENTION The jewelry made of precious metal, which has been subjected to the electrodeposition coating film containing an antibacterial agent, is an accessory which does not impair the high-class feeling of precious metal products, and which has a complicated, fine shape and structure, and wristwatch parts. , Without impairing the functions of eyeglass frames, etc., while maintaining the color and gloss peculiar to the metal of the object to be coated, it has a beautiful appearance and is highly durable.
It is safe for the human body, has a sufficient antibacterial effect, and can be safely used even by people who have metal allergy symptoms. The antibacterial effect of building hardware and faucets is extremely useful when used in facilities where hygiene is required.
【図１】本発明の実施例に使用した抗菌剤を含有する電
着塗装処理装置の原理を示す概略図FIG. 1 is a schematic view showing the principle of an electrodeposition coating treatment apparatus containing an antibacterial agent used in an example of the present invention.
１ 槽 ２ 陰極板（ＳＵＳ３０４） ３ 被塗装品 ４ 直流電源（ソフトスタート付） ５ 攪拌機 ６ 抗菌剤分散電着塗装溶液 1 Tank 2 Cathode Plate (SUS304) 3 Product to be Painted 4 DC Power Supply (With Soft Start) 5 Stirrer 6 Antibacterial Dispersion Electrodeposition Coating Solution
Claims (4)
たセラミックス微粒子よりなる抗菌剤を電着塗装溶液中
に均一に分散させ、該溶液中にて被塗装物と極板間に電
圧を印加して直流通電を行なうことにより、被塗装物表
面に抗菌剤が共析した被膜を得ることを特徴とする抗菌
剤を含有する電着塗装被膜の形成方法。1. An antibacterial agent comprising fine ceramic particles obtained by sintering and mixing calcium phosphate and metallic silver is uniformly dispersed in an electrodeposition coating solution, and a voltage is applied between the object to be coated and the electrode plate in the solution. A method for forming an electrodeposition coating film containing an antibacterial agent, characterized in that a film in which an antibacterial agent is co-deposited on the surface of an object to be coated is obtained by applying direct current.
金である貴金属地金、あるいはステンレス、銅合金、ニ
ッケル合金、鉄、アルミニウム、チタン等の素材及びそ
の素材上に金、プラチナ、ロジウム、ニッケル、クロ
ム、チタン合金等を被覆したものである請求項１記載の
抗菌剤を含有する電着塗装被膜の形成方法。2. The object to be coated is a noble metal ingot, which is gold, platinum, or an alloy thereof, or a material such as stainless steel, a copper alloy, a nickel alloy, iron, aluminum, or titanium, and gold, platinum, rhodium, The method for forming an electrodeposition coating film containing an antibacterial agent according to claim 1, which is coated with nickel, chromium, titanium alloy or the like.
リング、ピアス、イヤリング等の装身具、腕時計部品、
メガネフレームである請求項１記載の抗菌剤を含有する
電着塗装被膜の形成方法。3. The article to be coated is a necklace, bracelet,
Accessories such as rings, earrings and earrings, wristwatch parts,
The method for forming an electrodeposition coating film containing an antibacterial agent according to claim 1, which is an eyeglass frame.
る請求項１記載の抗菌剤を含有する電着塗装被膜の形成
方法。4. The method for forming an electrodeposition coating film containing an antibacterial agent according to claim 1, wherein the objects to be coated are building hardware and faucets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP28487294A JPH08120496A (en) | 1994-01-27 | 1994-11-18 | Formation of electrodeposition coating film containing antimicrobial agent |
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP754994 | 1994-01-27 | ||
| JP6-7549 | 1994-01-27 | ||
| JP28487294A JPH08120496A (en) | 1994-01-27 | 1994-11-18 | Formation of electrodeposition coating film containing antimicrobial agent |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH08120496A true JPH08120496A (en) | 1996-05-14 |
Family
ID=26341869
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP28487294A Pending JPH08120496A (en) | 1994-01-27 | 1994-11-18 | Formation of electrodeposition coating film containing antimicrobial agent |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH08120496A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011169A1 (en) * | 1996-09-14 | 1998-03-19 | Basf Coatings Ag | Aqueous electrophoretic enamels, their use in processes for coating electrically conductive substrates, and the use of silver ions and/or elemental silver in aqueous electrophoretic enamels |
| JPH10237362A (en) * | 1997-02-26 | 1998-09-08 | Catalysts & Chem Ind Co Ltd | Electrodeposition coating material and electrodeposition coating |
| CN108295307A (en) * | 2018-03-02 | 2018-07-20 | 中国医科大学附属口腔医院 | A kind of bone implantation calcium phosphorous compound-magnesium composite coating and preparation method thereof |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247296A (en) * | 1988-08-09 | 1990-02-16 | Mitsui Toatsu Chem Inc | Formation of superconductor |
| JPH03223372A (en) * | 1989-11-14 | 1991-10-02 | Canon Inc | Electrodeposition-coated member, preparation of the same, and electrodeposition coating material employed therein |
| JPH04223948A (en) * | 1990-04-17 | 1992-08-13 | Canon Inc | Carrying member and device using it |
| JPH05124918A (en) * | 1991-10-31 | 1993-05-21 | Sangi Co Ltd | Antibacterial tribasic calcium phosphate |
-
1994
- 1994-11-18 JP JP28487294A patent/JPH08120496A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0247296A (en) * | 1988-08-09 | 1990-02-16 | Mitsui Toatsu Chem Inc | Formation of superconductor |
| JPH03223372A (en) * | 1989-11-14 | 1991-10-02 | Canon Inc | Electrodeposition-coated member, preparation of the same, and electrodeposition coating material employed therein |
| JPH04223948A (en) * | 1990-04-17 | 1992-08-13 | Canon Inc | Carrying member and device using it |
| JPH05124918A (en) * | 1991-10-31 | 1993-05-21 | Sangi Co Ltd | Antibacterial tribasic calcium phosphate |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1998011169A1 (en) * | 1996-09-14 | 1998-03-19 | Basf Coatings Ag | Aqueous electrophoretic enamels, their use in processes for coating electrically conductive substrates, and the use of silver ions and/or elemental silver in aqueous electrophoretic enamels |
| JPH10237362A (en) * | 1997-02-26 | 1998-09-08 | Catalysts & Chem Ind Co Ltd | Electrodeposition coating material and electrodeposition coating |
| CN108295307A (en) * | 2018-03-02 | 2018-07-20 | 中国医科大学附属口腔医院 | A kind of bone implantation calcium phosphorous compound-magnesium composite coating and preparation method thereof |
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