JPH03137966A - Method for electrostatic painting of insulating article to be painted - Google Patents
Method for electrostatic painting of insulating article to be paintedInfo
- Publication number
- JPH03137966A JPH03137966A JP27642789A JP27642789A JPH03137966A JP H03137966 A JPH03137966 A JP H03137966A JP 27642789 A JP27642789 A JP 27642789A JP 27642789 A JP27642789 A JP 27642789A JP H03137966 A JPH03137966 A JP H03137966A
- Authority
- JP
- Japan
- Prior art keywords
- painted
- paint
- solvent
- article
- electrostatic painting
- 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
- 238000010422 painting Methods 0.000 title abstract description 4
- 238000000034 method Methods 0.000 title description 2
- 239000003973 paint Substances 0.000 claims abstract description 13
- 239000002904 solvent Substances 0.000 claims abstract description 11
- 239000011248 coating agent Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 8
- 238000009503 electrostatic coating Methods 0.000 claims description 7
- 238000007610 electrostatic coating method Methods 0.000 claims 1
- 230000008020 evaporation Effects 0.000 description 3
- 238000001704 evaporation Methods 0.000 description 3
- 239000010408 film Substances 0.000 description 3
- SVONRAPFKPVNKG-UHFFFAOYSA-N 2-ethoxyethyl acetate Chemical compound CCOCCOC(C)=O SVONRAPFKPVNKG-UHFFFAOYSA-N 0.000 description 2
- LRHPLDYGYMQRHN-UHFFFAOYSA-N N-Butanol Chemical compound CCCCO LRHPLDYGYMQRHN-UHFFFAOYSA-N 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000004094 surface-active agent Substances 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N Butyl acetate Natural products CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 1
- 239000004593 Epoxy Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- FUZZWVXGSFPDMH-UHFFFAOYSA-N hexanoic acid Chemical compound CCCCCC(O)=O FUZZWVXGSFPDMH-UHFFFAOYSA-N 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明はプラスチック製品等の絶縁性被塗物に静電塗装
を施す方法に関する。DETAILED DESCRIPTION OF THE INVENTION FIELD OF INDUSTRIAL APPLICATION The present invention relates to a method for electrostatically coating insulating coating objects such as plastic products.
従来の技術及び発明が解決しようとする問題点従来、プ
ラスチック製品等の絶縁性被塗物に静電塗装を施すには
、被塗物の表面に界面活性剤を塗布して導電性を付与す
ることにより接地して帯電させていたが、界面活性剤の
上に塗膜が形成されるため、塗膜の被塗物への密着性が
低下する欠点があって、プリント基板のように電気的な
問題がある製品には適用することができず、スクリーン
印刷や非静電塗装が行われており、能率が低くまた塗料
の塗着効率が低い欠点があった。Conventional techniques and problems to be solved by the invention Conventionally, in order to apply electrostatic coating to an insulating object such as a plastic product, a surfactant is applied to the surface of the object to make it conductive. However, since a coating film is formed on top of the surfactant, the adhesion of the coating film to the object being coated is reduced, and electrical It cannot be applied to products with such problems, and screen printing or non-electrostatic painting is used, which has the disadvantage of low efficiency and low paint application efficiency.
問題点を解決するための手段
本発明はこのような問題点を解決するための手段として
、塗料に溶融することが可能な溶剤であって電気抵抗値
が５００ｘｌＯ” Ｏｈｍ−ａｍ以下のものを絶縁性被
塗物に塗布し、その溶剤が蒸発する前に塗料を静１１１
塗装により塗着させる構成とした。Means for Solving the Problems The present invention aims to solve these problems by insulating a solvent that can be melted into paint and has an electrical resistance of 500 x 10" Ohm-am or less. The paint is applied to the object to be coated, and before the solvent evaporates, the paint is
It is configured to be applied by painting.
発明の作用及び効果
本発明は上記構成になり、被塗物に塗布する溶剤は電気
抵抗値が比較的小さいから被塗物を接地することにより
帯電させることができるとともに、その溶剤は塗料に溶
融することが可能であるから、静電塗装により塗着した
塗料と融合し、蒸発により硬化するのであって、通常の
静電塗装と同様の高品質の塗膜を形成することができる
効果がある。Functions and Effects of the Invention The present invention has the above-mentioned structure, and since the electrical resistance of the solvent applied to the object to be coated is relatively small, it can be charged by grounding the object to be coated, and the solvent is melted into the paint. Because it can be applied with electrostatic coating, it fuses with the paint applied by electrostatic coating and hardens by evaporation, which has the effect of forming a high-quality coating similar to that of regular electrostatic coating. .
実施例
溶剤セロソルブアセテートを被塗物の表面に塗布した後
、下記の条件で静電塗装を行ったところ、ウェット厚さ
で７５〜１００ミクロンの均一な塗膜を形成することが
できた。Example After applying the solvent cellosolve acetate to the surface of the object to be coated, electrostatic coating was performed under the following conditions, and a uniform coating film with a wet thickness of 75 to 100 microns could be formed.
被 塗 物ニブラスチック製プリント基板塗 料
二大日本インキ化学製エポキシ系塗料ホトソルダレジス
ト
シ ン す ：ＭＥＫ
塗料吐出量： ９６ ｇ ／ｗｉｎ
印加電圧： ＤＣ−８０ＫＶ
スプレィ距離：３００ｍｍ
スプレィガン：直径３０ｖ１の回転カップ予め被塗物に
塗布する溶剤としては電気抵抗が比較的小さいとともに
、塗布した後静電塗装を行うまでの間に蒸発してしまわ
ないように蒸発速度がある程度遅いことが必要であり、
酢酸ブチルの蒸発速度を１００とした場合に１００以下
であることが望ましく、セロソルブアセテートの他にブ
タノールを絶縁性被塗物に塗布しても良好な静１１！塗
装をなし得ることが実験的に確認された。Coating material Printed circuit board paint manufactured by Nipplastic Co., Ltd. Epoxy paint manufactured by Nippon Ink Chemical Co., Ltd. Photosolder resist thin film: MEK Paint discharge amount: 96 g/win Applied voltage: DC-80 KV Spray distance: 300 mm Spray gun: 30 V1 diameter As a solvent to be pre-applied to the object to be coated using a rotary cup, it is necessary that the electrical resistance is relatively low and that the evaporation rate is slow to a certain extent so that it does not evaporate between the time of application and the electrostatic coating.
It is desirable that the evaporation rate of butyl acetate is 100 or less, and even if butanol is applied in addition to cellosolve acetate to an insulating object, the static 11! It was experimentally confirmed that it could be painted.
Claims (1)
５００×１００＾６Ｏｈｍ−ｃｍ以下のものを絶縁性被
塗物に塗布し、該溶剤が蒸発する前に前記塗料を静電塗
装により塗着させることを特徴とする前記被塗物の静電
塗装方法A solvent that can be melted into the paint and has an electrical resistance value of 500 x 100^6 Ohm-cm or less is applied to the insulating object, and before the solvent evaporates, the paint is applied by electrostatic coating. The electrostatic coating method for the object to be coated, characterized by coating the object.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27642789A JPH03137966A (en) | 1989-10-24 | 1989-10-24 | Method for electrostatic painting of insulating article to be painted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP27642789A JPH03137966A (en) | 1989-10-24 | 1989-10-24 | Method for electrostatic painting of insulating article to be painted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03137966A true JPH03137966A (en) | 1991-06-12 |
Family
ID=17569262
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP27642789A Pending JPH03137966A (en) | 1989-10-24 | 1989-10-24 | Method for electrostatic painting of insulating article to be painted |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03137966A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511120A (en) * | 2005-10-05 | 2009-03-19 | エシコン・インコーポレイテッド | Improved method for coating medical devices |
-
1989
- 1989-10-24 JP JP27642789A patent/JPH03137966A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009511120A (en) * | 2005-10-05 | 2009-03-19 | エシコン・インコーポレイテッド | Improved method for coating medical devices |
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