JPS6360120B2 - - Google Patents
Info
- Publication number
- JPS6360120B2 JPS6360120B2 JP8714881A JP8714881A JPS6360120B2 JP S6360120 B2 JPS6360120 B2 JP S6360120B2 JP 8714881 A JP8714881 A JP 8714881A JP 8714881 A JP8714881 A JP 8714881A JP S6360120 B2 JPS6360120 B2 JP S6360120B2
- Authority
- JP
- Japan
- Prior art keywords
- plate electrode
- coated
- coating film
- patterned
- paint
- 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
Links
- 238000000576 coating method Methods 0.000 claims description 25
- 239000011248 coating agent Substances 0.000 claims description 22
- 238000004070 electrodeposition Methods 0.000 claims description 22
- 238000000034 method Methods 0.000 claims description 7
- 239000004020 conductor Substances 0.000 claims description 4
- 239000003973 paint Substances 0.000 description 17
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 6
- 239000007788 liquid Substances 0.000 description 5
- 229910052751 metal Inorganic materials 0.000 description 5
- 239000002184 metal Substances 0.000 description 5
- 150000002739 metals Chemical class 0.000 description 3
- 229910052782 aluminium Inorganic materials 0.000 description 2
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 2
- 125000000129 anionic group Chemical group 0.000 description 2
- 239000007864 aqueous solution Substances 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 150000001450 anions Chemical class 0.000 description 1
- 125000002091 cationic group Chemical group 0.000 description 1
- 150000001768 cations Chemical class 0.000 description 1
- 238000009297 electrocoagulation Methods 0.000 description 1
- 238000001962 electrophoresis Methods 0.000 description 1
- 239000000839 emulsion Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 239000000049 pigment Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
Landscapes
- Application Of Or Painting With Fluid Materials (AREA)
- Paints Or Removers (AREA)
Description
【発明の詳細な説明】
本発明は、模様状電着塗膜形成方法に関するも
のである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a patterned electrodeposited coating.
一般に金属塗装法の一つとして電着塗装法が知
られている。この電着塗装法とは、水系塗料の水
溶液に被塗物を浸漬して、該被塗物と電極との間
に直流電圧をかけて、塗料中の樹脂、顔料を被塗
物表面に析出せしめ、水に不溶性の塗膜を形成す
る方法である。 Electrodeposition coating is generally known as one of the metal coating methods. In this electrodeposition coating method, the object to be coated is immersed in an aqueous solution of water-based paint, and a DC voltage is applied between the object and an electrode to deposit resins and pigments in the paint onto the surface of the object. This method forms a coating film that is insoluble in water.
本発明は、上記の電着塗装法を応用して被塗物
表面に模様状の電着塗膜を形成する方法であつ
て、電着塗料中において、不均一電気抵抗分布を
有する版電極と導電材料からなる被塗物とを近接
対置させ、両者間に直流電流を通電させて前記被
塗物表面における前記版電極の不均一電気抵抗分
布に対応する通電部の周囲に電着塗膜を形成する
ようにしたことを特徴とするものである。 The present invention is a method for forming a patterned electrodeposited film on the surface of a workpiece by applying the above-mentioned electrodeposition coating method, and in which a plate electrode having a non-uniform electric resistance distribution is used in the electrodeposition paint. An object to be coated made of a conductive material is placed in close opposition to the object, and a direct current is passed between the two to form an electrodeposited coating film around the current-carrying portion corresponding to the non-uniform electrical resistance distribution of the plate electrode on the surface of the object to be coated. It is characterized in that it is formed.
次いで、第１図に示す装置例を参照して本発明
の模様状電着塗膜形成方法を更に詳述する。 Next, the method for forming a patterned electrodeposition coating film of the present invention will be described in further detail with reference to the example of the apparatus shown in FIG.
第１図において、符号１は電着塗料槽、２は電
着塗料液、３は被塗物、４は版電極、５は重錘、
６は直流電源をそれぞれ示している。 In FIG. 1, numeral 1 is an electrodeposition paint tank, 2 is an electrodeposition paint liquid, 3 is an object to be coated, 4 is a plate electrode, 5 is a weight,
6 indicates a DC power supply.
前記電着塗料液２としては、水系塗料の水溶液
が使用され、塗料粒子の帯電状態によつてアニオ
ン型塗料あるいはカチオン型塗料が採用される。 As the electrodeposition paint liquid 2, an aqueous solution of a water-based paint is used, and an anion type paint or a cation type paint is adopted depending on the charging state of the paint particles.
前記被塗物３は、導電材料であれば何でもよ
く、殆んどの金属に対して有効である。 The object 3 to be coated may be any conductive material, and is effective for most metals.
前記版電極４としては、不均一な電気抵抗分布
を有する電極であれば各種のもの、例えば図示の
模様状電極７を有するプリント基板４ａ上に絶縁
体である絹布４ｂを被覆したもの、あるいは金属
板と透液性の多孔質材又は模様付シルクスクリー
ン等を積層したものが採用される。 The plate electrode 4 may be of various types as long as it has a non-uniform electrical resistance distribution, for example, a printed circuit board 4a having a patterned electrode 7 as shown in the figure covered with silk cloth 4b as an insulator, or a metal plate. A laminate of a board and a liquid-permeable porous material or a patterned silk screen is used.
そして、電着塗料液２として、アニオン型塗料
を使用する場合には被塗物３を陽極、版電極４を
陰極とし、一方カチオン型塗料を使用する場合に
は、被塗物３を陰極版電極４を陽極として直流電
源６に接続する。 When an anionic paint is used as the electrodeposition coating liquid 2, the object 3 to be coated is used as an anode and the plate electrode 4 is used as a cathode.On the other hand, when a cationic paint is used, the object 3 to be coated is used as a cathode. The electrode 4 is connected to a DC power source 6 as an anode.
この版電極４と被塗物３とは図示の如く重錘５
によつて密着せしめられて使用される。 This plate electrode 4 and the object to be coated 3 are connected to each other by a weight 5 as shown in the figure.
It is used in close contact with the
本装置を使用して電着塗装処理を行なうと、水
中にコロイド状に分散している塗料粒子が電気泳
動によつて被塗物３表面に引きよせられ、電気凝
集により集まり、更に電気浸透によつて塗膜中の
水分が減少せしめられて、水に不溶性の電着塗膜
が形成される。この時、該電着塗膜は版電極４の
模様状電極７と対応する通電部の周囲に形成され
る。 When electrocoating is performed using this device, paint particles that are colloidally dispersed in water are attracted to the surface of the object 3 by electrophoresis, collected by electrocoagulation, and further electroosmotic. As a result, the water content in the coating film is reduced, and a water-insoluble electrodeposited coating film is formed. At this time, the electrodeposited coating film is formed around the energized portions of the plate electrode 4 that correspond to the patterned electrodes 7 .
次に本発明の具体的実施例について説明する。 Next, specific examples of the present invention will be described.
実施例 １
(1) 電着塗料液 アニオン型アルミニウム用電着
塗料（クリア）182gと染料（アリザニングリ
ーン）2gとに水を加えて1lとし、約１時間撹拌
して均等なエマルジヨンとする。Example 1 (1) Electrodeposition paint liquid Add water to 182g of anionic electrodeposition paint for aluminum (clear) and 2g of dye (alizanine green) to make 1L, and stir for about 1 hour to make a uniform emulsion. .
(2) 被塗物 A5052アルミニウム板
(3) 版電極 模様状電極を有するプリント基板を
絹布で被覆したもの
(4) 通電条件 100V1A／ｄm2の直流電流を２秒
間
(5) 重錘 0.5Kg／ｄm2
上記条件のもと、被塗物を陽極、版電極を陰極
として電着塗装処理したところ、被塗物３表面に
おいて版電極４の模様状電極７と対応す通電部の
周囲に緑色の電着塗膜が形成された。(2) Object to be coated A5052 aluminum plate (3) Plate electrode Printed circuit board with patterned electrodes covered with silk cloth (4) Current conditions 100V1A/dm 2 DC current for 2 seconds (5) Weight 0.5Kg/ dm 2 Under the above conditions, when the object to be coated was subjected to electrodeposition coating with the anode as the anode and the plate electrode as the cathode, a green color was observed on the surface of the object 3 around the current-carrying part corresponding to the patterned electrode 7 of the plate electrode 4. An electrodeposited coating was formed.
その後、電着塗膜を180℃で20分間焼付処理す
ると、堅牢な電着塗膜が得られた。 Thereafter, the electrodeposition coating was baked at 180°C for 20 minutes, resulting in a robust electrodeposition coating.
続いて、本発明の模様状電着塗膜形成方法の効
果を説明すると、電着塗料中において、不均一電
気抵抗分布を有する版電極と導電材料からなる被
塗物とを近接対置させ、両者間に直流電流を通電
させて、前記被塗物表面における前記版電極の不
均一電気抵抗分布に対応する通電部の周囲に電着
塗膜を形成するようにしたので、被塗物の材質に
限定がなく、ほとんどの金属に対して、任意のパ
ターンの模様状電着塗膜を容易に形成することが
できるとともに、電着塗料中に分散させる染料あ
るいは顔料の色を変えることによつて任意の色調
を得ることができるという優れた効果がある。 Next, to explain the effect of the method for forming a patterned electrodeposited coating film of the present invention, a plate electrode having a non-uniform electrical resistance distribution and a coated object made of a conductive material are placed close to each other in an electrodeposition coating, and both A direct current is passed between the parts to form an electrodeposited coating film around the current-carrying part corresponding to the non-uniform electrical resistance distribution of the plate electrode on the surface of the object to be coated. There are no limitations, and it is possible to easily form a patterned electrodeposited coating film on most metals, and it is also possible to easily form a patterned electrodeposited coating film on most metals. It has the excellent effect of being able to obtain a color tone of .
第１図は本発明の模様状電着塗膜形成方法に使
用する装置の具体例を示す断面図である。
１……電着塗料槽、２……電着塗料液、３……
被塗物、４……版電極、５……重錘、６……直流
電源。
FIG. 1 is a sectional view showing a specific example of an apparatus used in the method for forming a patterned electrodeposition coating film of the present invention. 1...electrodeposition paint tank, 2...electrodeposition paint liquid, 3...
Object to be coated, 4... plate electrode, 5... weight, 6... DC power supply.
Claims (1)
有する版電極と導電材料からなる被塗物とを近接
対置させ、両者間に直流電流を通電させて、前記
被塗物表面における前記版電極の不均一電気抵抗
分布に対応する通電部の周囲に電着塗膜を形成す
るようにしたことを特徴とする模様状電着塗膜形
成方法。1. In an electrodeposition coating, a plate electrode having a non-uniform electric resistance distribution and a coated object made of a conductive material are placed in close opposition to each other, and a direct current is passed between the two, so that the plate electrode on the surface of the coated article is A method for forming a patterned electrodeposition coating film, characterized in that the electrodeposition coating film is formed around a current-carrying part corresponding to a non-uniform electrical resistance distribution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8714881A JPS57200597A (en) | 1981-06-05 | 1981-06-05 | Method of forming electroplated coating with pattern |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8714881A JPS57200597A (en) | 1981-06-05 | 1981-06-05 | Method of forming electroplated coating with pattern |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS57200597A JPS57200597A (en) | 1982-12-08 |
| JPS6360120B2 true JPS6360120B2 (en) | 1988-11-22 |
Family
ID=13906886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8714881A Granted JPS57200597A (en) | 1981-06-05 | 1981-06-05 | Method of forming electroplated coating with pattern |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57200597A (en) |
-
1981
- 1981-06-05 JP JP8714881A patent/JPS57200597A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS57200597A (en) | 1982-12-08 |
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