JPH01236284A - Manufacture of electrostatic powder coating material - Google Patents
Manufacture of electrostatic powder coating materialInfo
- Publication number
- JPH01236284A JPH01236284A JP6441888A JP6441888A JPH01236284A JP H01236284 A JPH01236284 A JP H01236284A JP 6441888 A JP6441888 A JP 6441888A JP 6441888 A JP6441888 A JP 6441888A JP H01236284 A JPH01236284 A JP H01236284A
- Authority
- JP
- Japan
- Prior art keywords
- coating material
- powder
- mica
- powder coating
- pigment
- 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
- 238000000576 coating method Methods 0.000 title claims abstract description 25
- 239000011248 coating agent Substances 0.000 title claims abstract description 24
- 239000000843 powder Substances 0.000 title claims abstract description 23
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 239000000463 material Substances 0.000 title abstract description 10
- 239000010445 mica Substances 0.000 claims abstract description 27
- 229910052618 mica group Inorganic materials 0.000 claims abstract description 27
- 239000000049 pigment Substances 0.000 claims abstract description 25
- UQSXHKLRYXJYBZ-UHFFFAOYSA-N Iron oxide Chemical compound [Fe]=O UQSXHKLRYXJYBZ-UHFFFAOYSA-N 0.000 claims abstract description 6
- 239000002245 particle Substances 0.000 claims abstract description 5
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 claims abstract description 3
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 claims abstract description 3
- 238000003756 stirring Methods 0.000 claims description 9
- 238000009503 electrostatic coating Methods 0.000 claims description 8
- 239000000203 mixture Substances 0.000 claims description 2
- 238000007664 blowing Methods 0.000 claims 1
- 238000002156 mixing Methods 0.000 abstract description 9
- 238000013019 agitation Methods 0.000 abstract description 3
- 238000000227 grinding Methods 0.000 abstract description 3
- 238000000034 method Methods 0.000 abstract description 2
- 239000003973 paint Substances 0.000 description 13
- 239000011347 resin Substances 0.000 description 6
- 229920005989 resin Polymers 0.000 description 6
- 238000004898 kneading Methods 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000010298 pulverizing process Methods 0.000 description 2
- 239000000654 additive Substances 0.000 description 1
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 238000010008 shearing Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 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、乾式静電塗装に用いられるメタリック調粉体
塗料の製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for producing a metallic powder coating used in dry electrostatic coating.
（従来技術）
従来、微細な雲母片または天然雲母の表面に酸化チタン
や酸化鉄などをコーティングしたいわゆるパール顔料（
以下両者を総称して単に雲母顔料という）と樹脂及び硬
化剤などの添加物を混合し混練りした物を冷却粉砕して
粉末化する方法、あるいはクリアー顔料と雲母顔料を混
合機で混合する方法が採用されていた。(Prior art) Conventionally, so-called pearl pigments, which are made by coating the surface of fine mica pieces or natural mica with titanium oxide, iron oxide, etc.
Hereinafter, both are collectively referred to as mica pigments) and additives such as resins and curing agents are mixed and kneaded, which is then cooled and pulverized to form a powder, or the clear pigment and mica pigment are mixed in a mixer. had been adopted.
（本発明が解決しようとする課題）
樹脂と雲母顔料などを混練り粉砕して製造する場合には
、まず樹脂に雲母顔料を分散混合させる為に混練り前に
充分な混合を行なう必要が有る。この時余り強力に撹拌
混合を行なうと雲母顔料を粉砕してしまい更に、混練り
冷却後の粉砕時にも雲母顔料が粉砕される為により一層
塗膜の光沢の発現を損なうことになる。一方、クリアー
粉末塗料と雲母顔料を混合機で混合して製造する場合は
混合作用が緩やかな混合機例えばリボンミキサーや容器
回転型ミキサ−などではクリアー塗料及び雲母顔料の凝
集を解凝することが不充分となり雲母顔料が単粒子とし
て塗料粉末中に完全に分散し得ない為塗膜が均一で無く
なる。反面分散性を上げる為に強力な撹拌混合可能な高
速ミキサーを使用すると雲母顔料の凝集塊は分散される
が余りにも強力な為粒子の破壊を招き塗膜の光沢を失う
事となる。(Problem to be solved by the present invention) When manufacturing by kneading and pulverizing resin and mica pigment, it is necessary to perform sufficient mixing before kneading in order to disperse and mix the mica pigment into the resin. . If stirring and mixing are carried out too strongly at this time, the mica pigment will be pulverized, and the mica pigment will also be pulverized during pulverization after kneading and cooling, further impairing the development of the gloss of the coating film. On the other hand, when producing clear powder paint and mica pigment by mixing them in a mixer, a mixer with a gentle mixing action, such as a ribbon mixer or a container rotating mixer, cannot deagglomerate the clear paint and mica pigment. If this is insufficient, the mica pigment cannot be completely dispersed as single particles in the paint powder, resulting in an uneven coating. On the other hand, if a high-speed mixer capable of powerful agitation is used to improve dispersibility, the mica pigment aggregates will be dispersed, but the force will be too strong, leading to the destruction of the particles and loss of gloss of the coating film.
（課題を解決するための手段）
本発明は、クリアー塗料及び雲母顔料を撹拌媒体ミルに
投入し所定の温度条件下で分散混合させることにより、
クリアー塗料の軟化を防止し分散性を確保することにあ
る。(Means for Solving the Problems) The present invention provides a method of dispersing and mixing a clear paint and a mica pigment under a predetermined temperature condition by introducing the clear paint and the mica pigment into a stirring media mill.
The purpose is to prevent the clear paint from softening and ensure its dispersibility.
（作用）
本発明になる静電塗装用粉体塗料の製造方法は、撹拌媒
体ミルを用いその径が数ｍｌ１１以下の粉砕媒体を強い
力で撹拌することによりクリアー塗料粉末凝集塊及び雲
母顔料粉末凝集塊を強力なせん断力によって個々の粒子
に分散させると共に、媒体の複雑な動きにより、クリア
ー塗料及び雲母顔料を均一に分散混合させることが出来
る。なお、−１Ｇに粉体塗料に用いられる樹脂粉末は比
較的低い温度で軟化し易く、軟化した樹脂は表面に雲母
顔料の凝集体を融着させ分散の妨げとなるのでミル内を
樹脂の軟化温度以下に保つよう冷却することによりこの
ような状況を防止し、分散混合を促進させる事が出来る
。(Function) The method for producing a powder coating for electrostatic coating according to the present invention uses a stirring media mill to stir a grinding medium with a diameter of several milliliters or less with strong force, thereby producing clear paint powder agglomerates and mica pigment powder. The agglomerates are dispersed into individual particles by strong shearing force, and the clear paint and mica pigment can be uniformly dispersed and mixed by the complex movement of the medium. In addition, the resin powder used in -1G powder coatings is easily softened at relatively low temperatures, and the softened resin fuses mica pigment aggregates to the surface and hinders dispersion, so the softening of the resin is carried out inside the mill. This situation can be prevented and dispersive mixing can be promoted by cooling to keep the temperature below this temperature.
（発明の効果）
本発明によれば、短時間クリアー塗料及び雲母顔料を撹
拌混合するだけで塗装仕上げ面がメタリック調の静電塗
装用粉体塗料を製造し得る。(Effects of the Invention) According to the present invention, it is possible to produce a powder coating material for electrostatic coating with a metallic finish by simply stirring and mixing the clear coating material and the mica pigment for a short time.
（実施例）
直径２０ｃｍ、高さ２５ｃｍ内容精８Ωの撹拌媒体ミル
に直径３ｍｍのアルミナ製粉砕媒体を７ｋｇと薄いブル
ー系のクリアー塗料５００ｇ及び雲母顔料５０ｇを入れ
ジャケットに１０°Ｃ冷水を通し冷却しながら撹拌翼回
転数を３０Ｏｒｐｍで５分間運転を行なった。(Example) 7 kg of alumina grinding media with a diameter of 3 mm, 500 g of light blue clear paint, and 50 g of mica pigment were placed in a stirred media mill with a diameter of 20 cm, a height of 25 cm, and a content precision of 8 Ω, and cooled by passing 10°C cold water through the jacket. At the same time, operation was performed for 5 minutes at a stirring blade rotation speed of 30 rpm.
この様にして作られた静電塗装用粉体塗料を静電粉体塗
装装置を用いて吹き付は塗装し、２００°Ｃの電気炉で
１５分間焼き付けを行ない、更に、表面に透明クリアー
塗料を塗布した結果塗膜の状況は非常に美くしいメタリ
ック調光沢を帯びた平滑連続塗膜が得られた。The powder paint for electrostatic coating made in this way was sprayed using an electrostatic powder coating device, baked for 15 minutes in an electric furnace at 200°C, and then transparent clear paint was applied to the surface. As a result of coating, a smooth continuous coating film with a very beautiful metallic gloss was obtained.
（別の実施例）
前記実施例と同様の装置を用いて薄いブルー系クリアー
塗料５００ｇ及び雲母顔料５０ｇを同じ運転条件におい
て５°Ｃの乾燥空気を毎分５０ｐの割合でミル底部から
送入し３分間運転を行なって得た静電塗装用粉体塗料を
前記の実施例と同じ要領で焼き付は塗装を行ない、前記
実施例と同等の結果が得られた。(Another Example) Using the same equipment as in the previous example, 500 g of a thin blue clear paint and 50 g of mica pigment were fed under the same operating conditions with dry air at 5°C at a rate of 50 p/min from the bottom of the mill. The powder paint for electrostatic coating obtained by operating for 3 minutes was baked and painted in the same manner as in the previous example, and the same results as in the previous example were obtained.
以上 出願人 ホソカワミクロン株式会社that's all Applicant: Hosokawa Micron Co., Ltd.
Claims (3)
微細な雲母片または天然雲母の表面に酸化チタンや酸化
鉄などをコーティングした顔料を適正な温度条件下にお
いて分散混合させることを特徴とする静電塗装用粉体塗
料の製造方法。(1) A stirring medium mill is used to disperse and mix pigments, which are made by coating fine mica particles or natural mica with titanium oxide, iron oxide, etc. on the surface of powder coating, under appropriate temperature conditions. A method for producing a powder coating for electrostatic coating.
な温度を保つ様にした請求項１記載の静電塗装用粉体塗
料の製造方法。(2) The method for producing a powder coating for electrostatic coating according to claim 1, wherein the stirring media mill is equipped with a jacket so as to maintain an appropriate temperature at all times.
物を冷却することを特徴とする請求項１記載の静電塗装
用粉体塗料の製造方法。(3) The method for producing a powder coating for electrostatic coating according to claim 1, characterized in that the object to be treated is cooled by blowing dry low-temperature gas into the stirring medium mill.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6441888A JPH01236284A (en) | 1988-03-16 | 1988-03-16 | Manufacture of electrostatic powder coating material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP6441888A JPH01236284A (en) | 1988-03-16 | 1988-03-16 | Manufacture of electrostatic powder coating material |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01236284A true JPH01236284A (en) | 1989-09-21 |
Family
ID=13257710
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6441888A Pending JPH01236284A (en) | 1988-03-16 | 1988-03-16 | Manufacture of electrostatic powder coating material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01236284A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368885A (en) * | 1993-06-16 | 1994-11-29 | Morton International, Inc. | Method of applying coating powder and glass flake to produce a glass flake-containing finish |
| WO1999018161A1 (en) * | 1997-10-07 | 1999-04-15 | H.B. Fuller Company | Reflective composition of particles with resinous binder and process for preparing same |
| KR100413082B1 (en) * | 2002-01-23 | 2003-12-31 | 신우하이테크(주) | Metallic paint without closing up of metallic powder, and the finishing coat method using of it |
-
1988
- 1988-03-16 JP JP6441888A patent/JPH01236284A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5368885A (en) * | 1993-06-16 | 1994-11-29 | Morton International, Inc. | Method of applying coating powder and glass flake to produce a glass flake-containing finish |
| WO1999018161A1 (en) * | 1997-10-07 | 1999-04-15 | H.B. Fuller Company | Reflective composition of particles with resinous binder and process for preparing same |
| US6166123A (en) * | 1997-10-07 | 2000-12-26 | H. B. Fuller Company | Reflective composition of particles with resinous binder and process for preparing same |
| KR100413082B1 (en) * | 2002-01-23 | 2003-12-31 | 신우하이테크(주) | Metallic paint without closing up of metallic powder, and the finishing coat method using of it |
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