JP3182653B2 - Pre-painting method - Google Patents
Pre-painting methodInfo
- Publication number
- JP3182653B2 JP3182653B2 JP04556991A JP4556991A JP3182653B2 JP 3182653 B2 JP3182653 B2 JP 3182653B2 JP 04556991 A JP04556991 A JP 04556991A JP 4556991 A JP4556991 A JP 4556991A JP 3182653 B2 JP3182653 B2 JP 3182653B2
- Authority
- JP
- Japan
- Prior art keywords
- plasma
- glass
- metal
- gas
- electrodes
- 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.)
- Expired - Fee Related
Links
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- Application Of Or Painting With Fluid Materials (AREA)
Description
【0001】[0001]
【産業上の利用分野】本発明は金属又はガラスなどに接
着剤又は塗料を塗布する際の塗装前処理方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pretreatment method for applying an adhesive or paint to metal or glass.
【0002】[0002]
【従来の技術】金属やガラスの表面には塗料又は接着剤
は塗布しにくく、従来、金属の場合は脱脂処理、或いは
脱錆などの前処理を行ってからプライマ−塗料を塗装
し、またガラスのようなセラミック表面の場合には通常
シランカップリング剤のような特殊な物質で処理した
り、或は塗料中に配合して行っている。2. Description of the Related Art It is difficult to apply a paint or an adhesive on the surface of a metal or glass. Conventionally, in the case of a metal, a primer coating is applied after performing a pretreatment such as degreasing or derusting. Such a ceramic surface is usually treated with a special substance such as a silane coupling agent, or blended in a paint.
【0003】しかし、これらの処理等は煩瑣であり、ま
た或る種の薬剤は高価であったり、或は、水溶液中で処
理が行われる場合には、その処理浴からの廃棄物は環境
汚染の問題を生じやすいという欠点があった。However, these treatments are complicated, and some chemicals are expensive, or when the treatment is carried out in an aqueous solution, the waste from the treatment bath causes environmental pollution. However, there is a disadvantage that the above problem is easily caused.
【0004】他方、従来より原料物質をグロ−放電によ
りプラズマ化し、これによって表面を改質する表面処理
法は、プラズマ化学の表面処理方法として知られている
が、最近、大気圧下で安定なグロ−放電が可能になって
以来、プラズマ化による表面処理方法が盛んに行われる
ようになって来た。[0004] On the other hand, a surface treatment method in which a raw material is converted into plasma by glow discharge and the surface is modified by this is known as a surface treatment method of plasma chemistry. Since glow discharge became possible, surface treatment methods using plasma have been actively performed.
【0005】[0005]
【発明が解決しようとする課題】そこで、本発明者は金
属又はガラスにプラズマ化による表面処理を施したとこ
ろ、何らの前処理を行うことなく、塗料又は接着剤が極
めて容易に密着し塗装できることを見出し本発明を完成
したもので、本発明の目的は金属又はガラスの塗装前処
理方法を提供するにある。Therefore, the present inventor has applied a surface treatment to a metal or glass by plasma treatment. As a result, the paint or adhesive can be adhered very easily without any pretreatment. SUMMARY OF THE INVENTION An object of the present invention is to provide a pretreatment method for coating metal or glass.
【0006】[0006]
【課題を解決するための手段】本発明の要旨は、対向す
る電極間に金属又はガラスを位置せしめ、不活性気体又
はケトン類含有不活性気体の存在下両電極間に高周波電
圧を印加して大気圧グロ−放電を行い、金属又はガラス
の表面をプラズマ化処理することを特徴とする塗装前処
理方法である。The gist of the present invention is to dispose a metal or glass between opposing electrodes and to apply a high-frequency electric current between the electrodes in the presence of an inert gas or an inert gas containing ketones.
This is a pre-coating treatment method characterized by performing atmospheric pressure glow discharge by applying pressure and plasma-treating the surface of metal or glass.
【0007】すなわち、両電極間に大気圧グロ−放電を
行い金属又はガラスの表面をプラズマ化処理することに
よって塗料又は接着剤の密着を可能にしたのである。That is, by applying an atmospheric pressure glow discharge between the two electrodes and subjecting the surface of the metal or glass to plasma treatment, the adhesion of the paint or adhesive is made possible.
【0008】本発明について更に詳細に説明する。本発
明において処理される金属としては、例えば、黄銅、ア
ルミ、ステンレス、鉄、鋼等何れの金属でも良く、これ
らは冷間圧延又は熱間圧延等の加工処理が施されていて
も良く、その形態としては板状、粉末状、網状、ワイヤ
−状或は成形体のいずれでも良い。ガラス製品について
も同様である。本発明は、特に耐食性を必要としないス
テンレス、アルミ或は黄銅の処理に有利である。The present invention will be described in more detail. The metal to be treated in the present invention, for example, may be any metal such as brass, aluminum, stainless steel, iron and steel, and these may be subjected to a processing such as cold rolling or hot rolling. The shape may be any of plate, powder, mesh, wire, or molded product. The same applies to glass products. The present invention is particularly advantageous for the treatment of stainless steel, aluminum or brass which does not require corrosion resistance.
【0009】本発明は大気圧グロ−発生装置を使用す
る。具体的には、上下に対向する電極に電極より大きい
誘電被膜を貼りあわせ、容器中に不活性ガス又はケトン
類含有不活性ガスを導入し、電極間又は下部電極に金属
又はガラス板を位置せしめ、両電極に高周波高電圧を印
加してグロ−放電を発生させるものである。The present invention uses an atmospheric pressure glow generator. Specifically, bonded large dielectric target film from the electrode to the electrode opposed to vertically, in a container the inert gas or ketone
A glow discharge is generated by introducing a kind of inert gas , positioning a metal or glass plate between the electrodes or between the lower electrodes, and applying a high frequency high voltage to both electrodes.
【0010】使用する不活性ガスとしては、ヘリウム、
アルゴン、窒素等のガス又はこれらの混合ガス等の不活
性ガス雰囲気である。アルゴンガス単独の場合、電極間
に電圧を印加するとグロ-放電を起こさず、糸状放電に
なるのでアルゴンガス中に少量のケトン類、好ましくは
アセトンの蒸気を添加することが必要である。アルゴン
ガスとケトンとの混合比は、アルゴン99.99部にケトン
0.01部を添加したものよりアルゴン95部にケトン5部添
加したものである。ケトンの割合が多くなっても使用で
きるが、ケトン臭気が甚だしくなるので、好ましくはア
ルゴン99.9部にケトン0.1部添加したものよりアルゴン9
8部にケトン2部を添加したものである。ケトン類の添加
手段としては、通常、不活性ガスをケトン類の液の中を
通すか、又はケトン類の上を通過させて、その蒸気を含
有させる。また、アルゴンとケトンとの混合ガスに窒素
ガスを混合しても良い。As the inert gas used, helium,
This is an inert gas atmosphere such as a gas such as argon or nitrogen or a mixed gas thereof. In the case of using argon gas alone, when a voltage is applied between the electrodes, glow discharge does not occur, and a filamentous discharge occurs. Therefore, it is necessary to add a small amount of ketones, preferably acetone vapor, to the argon gas. The mixing ratio of argon gas to ketone is 99.99 parts of argon.
It is a product obtained by adding 5 parts of ketone to 95 parts of argon from that of 0.01 part. Although it can be used even when the proportion of the ketone is large, the odor of the ketone becomes severe.
It is obtained by adding 2 parts of ketone to 8 parts. As a means for adding the ketones, usually, an inert gas is passed through a liquid of the ketones or is passed over the ketones to contain the vapor. Alternatively, nitrogen gas may be mixed with a mixed gas of argon and ketone.
【0011】窒素ガスについては、窒素ガス単独では放
電しにくいのでヘリウム中に少量、例えば20%程度混合
して使用すると良い。Since it is difficult to discharge nitrogen gas alone, it is preferable to mix a small amount of nitrogen gas, for example, about 20% with helium.
【0012】両電極間にグロ-放電させ、プラズマ化さ
せる手段は、通常のプラズマ表面処理の場合と大差な
い。すなわち、電圧は2000V〜6000Vで、周波数は200Hz
〜100,000Hz必要である。100,000Hz以上ではラジオ波に
なるので使用できるが好ましくは無い。通常500Hz〜50,
000Hzであるが、好ましい範囲は1000Hz〜10,000Hzであ
る。Means for causing glow discharge between both electrodes to generate plasma is not much different from the case of ordinary plasma surface treatment. That is, the voltage is 2000V-6000V, the frequency is 200Hz
Requires ~ 100,000Hz. A frequency of 100,000 Hz or more can be used because it becomes a radio wave, but is not preferred. Usually 500Hz ~ 50,
000 Hz, but the preferred range is 1000 Hz to 10,000 Hz.
【0013】また、両電極間の間隔としては、存在する
不活性ガス或いは被処理金属又はガラスの種類によって
多少異なるが、通常50mmから1mm、好ましくは20mmから5
mm程度である。The distance between the two electrodes varies somewhat depending on the type of the inert gas or the metal or glass to be treated, but is usually 50 mm to 1 mm, preferably 20 mm to 5 mm.
mm.
【0014】処理時間としては20秒〜20分程度であっ
て、処理時間を長くすることにより形成される薄膜の厚
みは増すが、経済性は低下するので、通常上記の範囲内
の時間を処理時間とする。The processing time is about 20 seconds to 20 minutes. As the processing time is increased, the thickness of the thin film formed increases, but the economic efficiency decreases. Time.
【0015】本発明では大気圧下でグロ−放電してプラ
ズマ化するので、連続処理が可能であり、したがって、
長尺の被処理物も連続的にプラズマ化することができ
る。本発明によって処理された表面は、塩ビ−酢ビ共重
合体よりなる汎用塗料は勿論、いかなる塗料及び接着剤
に対して密着性を有する。In the present invention, since the plasma is generated by glow discharge under atmospheric pressure, continuous processing is possible.
A long object can also be continuously converted into plasma. The surface treated according to the present invention has adhesiveness to any paints and adhesives as well as general-purpose paints made of polyvinyl chloride-vinyl acetate copolymer.
【0016】次に、実施例及び比較例をもって具体的に
説明するが、本発明はこれに限られるものではない。Next, the present invention will be described specifically with reference to examples and comparative examples, but the present invention is not limited to these examples.
実施例1 プラズマ反応器中の上下電極に100ミクロン厚のポリイ
ミドフィルムを貼りあわせる。これは電極よりも大きい
面積のものである。電極間隙は8mm、下部電極の上に
ステンレスSUS304の板をのせ、容器中にヘリウムガスを
満し空気と完全に置換する。Example 1 A polyimide film having a thickness of 100 microns is bonded to upper and lower electrodes in a plasma reactor. This is of a larger area than the electrodes. The electrode gap is 8 mm. A stainless steel SUS304 plate is placed on the lower electrode, and the container is filled with helium gas and completely replaced with air.
【0017】次に5000Hz、3000Vの高周波電圧を印加
し、出力を50〜100Wとする。美しい紫色のグロ−を発生
しプラズマ励起されるから5分間で電源を切り、取り出
し、酸ビ−塩ビコ−ポリマのエスレックA(セキスイ化
学製)の20%メチルエチルケトン(MEK)溶液を塗布し
乾燥する。その後クロスカット試験を行ったところ100/
100で、塗膜は全く剥離しなかった。Next, a high frequency voltage of 5000 Hz and 3000 V is applied, and the output is set to 50 to 100 W. After a beautiful purple glow is generated and the plasma is excited, the power is turned off in 5 minutes, taken out, and a 20% methyl ethyl ketone (MEK) solution of Selec A (manufactured by Sekisui Chemical) of acid-vinyl chloride-polymer is applied and dried. . After that, a cross cut test was performed.
At 100, the coating did not peel at all.
【0018】尚、プラズマ化処理を行なうことなく同じ
塗料を塗布乾燥したものはクロスカットしなくても簡単
に塗膜は剥離して全く密着しなかった。試験に使用した
ステンレスSUS304板は、厚み1mmのものでこれを脱脂
洗滌して使用した。In the case where the same coating material was applied and dried without performing the plasma treatment, the coating film was easily peeled off without cross-cutting, and did not adhere at all. The stainless steel SUS304 plate used for the test had a thickness of 1 mm and was degreased and washed before use.
【0019】実施例2 実施例1と全く同様な装置で下部電極の上にステンレス
SUS304の厚み1mmのものを置きヘリウムガス60部アル
ゴンガス40部の混合物を容器中に導入して行った。次に
300Hz、4000Vの高周波電圧をEPDOし出力60Wとした。紫
色のグロ−を発生し、プラズマ励起されるから3分間で
取りだし、実施例1と全く同様に、密着試験を行った。
これも100/100で全く剥離しなかった。未処理のものは
セロテ−プで単に剥離するだけで音も無くはがれ全く密
着していなかった。Example 2 The same device as in Example 1 was used to place stainless steel on the lower electrode.
SUS304 having a thickness of 1 mm was placed, and a mixture of 60 parts of helium gas and 40 parts of argon gas was introduced into the container. next
The high frequency voltage of 300Hz and 4000V was EPDO and the output was 60W. A purple glow was generated, and it was taken out in 3 minutes after being excited by plasma, and an adhesion test was performed in exactly the same manner as in Example 1.
This also did not peel at 100/100 at all. The untreated product was peeled off without any sound by simply peeling off with a cello tape, and did not adhere at all.
【0020】実施例3 実施例1と全く同様な装置に黄銅板の厚み2mmのもの
をおきアルゴン99.9部アセトン0.1部の混合ガスを導入
してグロ−放電させた。高周波電圧は5000Hz、3500Vで1
00Wである。青色のグロ−を発生し、プラズマ励起され
る。1分間で取出し、実施例1と全く同様な方法にてク
ロスカット100/100であった未処理のものは全く密着し
なかった。尚、上記アルゴンガスとアセトンの比率は流
量部ある。(アセトンはガスクロマトグラフより換算し
たアセトンのガス流量である。)Example 3 A brass plate having a thickness of 2 mm was placed in the same apparatus as in Example 1, and a mixed gas of 99.9 parts of argon and 0.1 part of acetone was introduced to cause glow discharge. High frequency voltage is 5000Hz, 1 at 3500V
00W. A blue glow is generated and plasma is excited. It was taken out in 1 minute, and the untreated one having a cross cut of 100/100 in exactly the same manner as in Example 1 did not adhere at all. The ratio between the argon gas and acetone is a flow rate part. (Acetone is the gas flow rate of acetone converted from a gas chromatograph.)
【0021】実施例4 実施例1と全く同様な方法で下部電極の上に厚み2mm
のガラス板をおき、アルゴンガス99.5部MEK0.5部の
混合ガスを導入した。次に10000Hz、2000Vの高周波電圧
を印加し出力は100Wとした。薄い空色のグロ−を発生
し、プラズマで励起される3分後に取りだし、実施例1
と全く同様の方法で密着テストをおこなったが100/100
である。ガラスにはこのような塗料は全く接着しないが
これは驚くべき事である。勿論未処理のものは手でさわ
るだけで簡単にフィルム状にはがれ全く接着していな
い。Embodiment 4 The thickness of 2 mm was formed on the lower electrode in the same manner as in Embodiment 1.
Was placed, and a mixed gas containing 99.5 parts of argon gas and 0.5 part of MEK was introduced. Next, a high frequency voltage of 10,000 Hz and 2000 V was applied, and the output was set to 100 W. Example 1 A light sky-blue glow was generated and was taken out 3 minutes after being excited by plasma.
The adhesion test was performed in exactly the same way as
It is. Such paints do not adhere to glass at all, which is surprising. Of course, the unprocessed one is easily peeled off in a film form only by touching by hand, and is not adhered at all.
【0022】実施例5 実施例1と全く同様にして下部電極の上に厚み1.5mm
のアルミ板をおき次にヘリウムガス95部窒素ガス5部
の混合物を導入した。次に上下電極間に8000Hz、2800
V、60Wの高周波電圧を印加すると青紫色のグロ−を発生
しプラズマ励起される。3分後、アルミ板を取出し、実
施例1と全く同様に密着試験を行ったが100/100で極め
て強い接着性を示した。未処理のアルミ板は音もなくは
がれ全く密着しなかった。Embodiment 5 The thickness of 1.5 mm was formed on the lower electrode in exactly the same manner as in Embodiment 1.
Then, a mixture of 95 parts of helium gas and 5 parts of nitrogen gas was introduced. Next, 8000 Hz, 2800 between upper and lower electrodes
When a high frequency voltage of V, 60 W is applied, blue-violet glow is generated and plasma is excited. After 3 minutes, the aluminum plate was taken out and subjected to an adhesion test exactly in the same manner as in Example 1. However, 100/100 showed extremely strong adhesion. The untreated aluminum plate came off without sound and did not adhere at all.
【0023】実施例6 実施例1と全く同様に下部電極の上に厚み1mmの冷延
銅板をおき次にヘリウムガスを導入した。5000Hz、2000
V、100Wの高周波電圧を印加すると紫色のグロ−を発生
し、プラズマ励起される。1分間で取出し実施例1と全
く同様に密着試験を行ったが100/100で極めて強い接着
を示した。未処理のものは全く密着しなかった。尚、実
施例のすべての金属類はいずれも溶剤(ダイフロン)を
使用して脱脂したものを使用した。Example 6 A cold-rolled copper plate having a thickness of 1 mm was placed on the lower electrode exactly as in Example 1, and helium gas was introduced. 5000Hz, 2000
When a high-frequency voltage of V and 100 W is applied, purple glow is generated and plasma is excited. The sample was taken out for 1 minute, and the adhesion test was carried out in exactly the same manner as in Example 1. However, 100/100 showed extremely strong adhesion. The untreated one did not adhere at all. In addition, all the metals of the Example used what was degreased using the solvent (Diflon).
【0024】[0024]
【発明の効果】以上述べたように、本発明は金属表面又
はガラス表面をプラズマ処理という極めて簡単な処理に
よって塗料及び接着剤に対して密着性を呈する効果を奏
する。As described above, the present invention has an effect of exhibiting adhesion to paints and adhesives by a very simple treatment of plasma treatment on a metal surface or a glass surface.
───────────────────────────────────────────────────── フロントページの続き (56)参考文献 特開 昭61−83232(JP,A) 特開 昭57−85821(JP,A) 特開 昭50−157227(JP,A) (58)調査した分野(Int.Cl.7,DB名) B05D 1/00 - 7/26 ────────────────────────────────────────────────── (5) References JP-A-61-83232 (JP, A) JP-A-57-85821 (JP, A) JP-A 50-157227 (JP, A) (58) Field (Int.Cl. 7 , DB name) B05D 1/00-7/26
Claims (1)
せしめ、不活性気体又はケトン類含有不活性気体の存在
下両電極間に高周波電圧を印加して大気圧グロ−放電を
行い、金属又はガラスの表面をプラズマ化処理すること
を特徴とする塗装前処理方法。1. A metal or glass is placed between opposed electrodes, and a high-frequency voltage is applied between the two electrodes in the presence of an inert gas or a ketone-containing inert gas to perform an atmospheric pressure glow discharge, whereby the metal or glass is discharged. A coating pretreatment method, which comprises subjecting a glass surface to a plasma treatment.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04556991A JP3182653B2 (en) | 1991-02-20 | 1991-02-20 | Pre-painting method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP04556991A JP3182653B2 (en) | 1991-02-20 | 1991-02-20 | Pre-painting method |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH05131170A JPH05131170A (en) | 1993-05-28 |
JP3182653B2 true JP3182653B2 (en) | 2001-07-03 |
Family
ID=12722978
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP04556991A Expired - Fee Related JP3182653B2 (en) | 1991-02-20 | 1991-02-20 | Pre-painting method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP3182653B2 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
KR101101312B1 (en) * | 2009-06-11 | 2012-01-02 | 순천대학교 산학협력단 | Surface treatment method for enhancing the anti-corrosion property of the zinc-coated steel sheet |
JP7191652B2 (en) * | 2018-11-16 | 2022-12-19 | 日本化学工業株式会社 | Method for producing coated particles |
-
1991
- 1991-02-20 JP JP04556991A patent/JP3182653B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JPH05131170A (en) | 1993-05-28 |
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