JP2005007287A - Titanium oxide coating film layer formation method - Google Patents
Titanium oxide coating film layer formation method Download PDFInfo
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- JP2005007287A JP2005007287A JP2003174266A JP2003174266A JP2005007287A JP 2005007287 A JP2005007287 A JP 2005007287A JP 2003174266 A JP2003174266 A JP 2003174266A JP 2003174266 A JP2003174266 A JP 2003174266A JP 2005007287 A JP2005007287 A JP 2005007287A
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- JP
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- Prior art keywords
- titanium oxide
- coating layer
- coating film
- film layer
- forming
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- 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.)
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 33
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract description 33
- 239000011248 coating agent Substances 0.000 title claims abstract description 19
- 238000000576 coating method Methods 0.000 title claims abstract description 19
- 238000000034 method Methods 0.000 title claims abstract description 16
- 230000015572 biosynthetic process Effects 0.000 title abstract 2
- 239000011247 coating layer Substances 0.000 claims abstract description 48
- 230000003068 static effect Effects 0.000 claims abstract description 17
- LFQSCWFLJHTTHZ-UHFFFAOYSA-N Ethanol Chemical compound CCO LFQSCWFLJHTTHZ-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000005611 electricity Effects 0.000 claims abstract description 14
- NDVLTYZPCACLMA-UHFFFAOYSA-N silver oxide Chemical compound [O-2].[Ag+].[Ag+] NDVLTYZPCACLMA-UHFFFAOYSA-N 0.000 claims abstract description 14
- 238000005507 spraying Methods 0.000 claims abstract description 12
- 229910001923 silver oxide Inorganic materials 0.000 claims abstract description 7
- 239000007788 liquid Substances 0.000 claims abstract description 6
- 239000010410 layer Substances 0.000 abstract description 11
- 230000006866 deterioration Effects 0.000 abstract 1
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 12
- 229910052719 titanium Inorganic materials 0.000 description 12
- 239000010936 titanium Substances 0.000 description 12
- 239000010419 fine particle Substances 0.000 description 10
- 239000000428 dust Substances 0.000 description 3
- 239000002245 particle Substances 0.000 description 2
- 239000000243 solution Substances 0.000 description 2
- 241000894006 Bacteria Species 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000002347 injection Methods 0.000 description 1
- 239000007924 injection Substances 0.000 description 1
- 230000001846 repelling effect Effects 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
Images
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- Application Of Or Painting With Fluid Materials (AREA)
- Inorganic Compounds Of Heavy Metals (AREA)
- Catalysts (AREA)
Abstract
Description
【０００１】
【発明の属する技術分野】本発明は、物体の表面に、酸化チタン被膜層を効果的に形成する方法に関するものである。
【０００２】
【従来の技術】従来、物体の表面，例えば自動車の車体に塗膜したメタリック塗膜層の上にクリヤー塗膜層を形成した後、その上に、酸化銀および酸化チタン並びにエタノールを含む被膜液を噴霧器で吹付け、酸化チタン被膜層を形成する技術が存在する。酸化チタン被膜層は無機質であるため、雑菌の繁殖を防ぎ、汚れが付着し難くなる等の作用効果を発揮する。
【０００３】
【発明が解決しようとする課題】しかし、こうした従来の酸化チタン被膜層を被膜した車体でも、６ヶ月位経過すると変色し、メタリック塗膜層の色合いが減退するといった問題が発生する。
【０００４】
この原因の一つは、酸化銀、酸化チタンおよびエタノールを含有した被膜液を噴霧器で吹付ける際に、そのエアーに静電気が帯電しているためであると考えられる。エアーが帯電していると、それと共に吹付けられ、酸化チタン被膜層１を形成するチタン微粒子１ａも帯電し易く、その結果、反発し合うチタン微粒子１ａ間に隙間Ｇが形成され、その隙間Ｇに汚れＴが入り込んだり、また、帯電したゴミＲが付着するからである（図４参照）。
【０００５】
また、他の原因として、酸化銀および酸化チタン並びにエタノールを含む被膜液を吹付ける際の噴霧器と車体との距離、および噴射圧力が適切でないことが考えられる。例えば、距離が近すぎたり噴射圧力が強すぎると、チタン微粒子が跳ね返ってしまい、クリヤー塗膜層に上手く付着させることができない。
【０００６】
本発明はこうした問題に鑑み創案されたもので、メタリック塗膜層の色合いが減退するのを未然に防止すべく、物体の表面に、酸化チタン被膜層を効果的に形成する方法を提供することを課題とする。
【０００７】
【課題を解決するための手段】図１乃至図３を参照して説明する。第一の発明に係る酸化チタン被膜層形成方法は、物体４の表面にクリヤー塗膜層２を塗膜した後、静電気除去装置６によって静電気を除去したエアーを使用した噴霧器５により、酸化銀、酸化チタンおよびエタノールを含有した被膜液１０を、５０〜７０ｃｍの距離Ｄから１〜２ｋｇｆ／ｃｍ２の噴射圧力で吹付け、前記クリヤー塗膜層２の上に、酸化チタン被膜層１を形成してなることを特徴とするものである。
【０００８】
【発明の実施の形態】本発明に係る酸化チタン被膜層形成方法の実施形態を、図１および図２に示す。この方法は、まず、自動車等の物体４にメタリック塗膜層３を塗膜する。次に、そのメタリック塗膜層３の上にクリヤー塗膜層２を塗膜する。最後に、当該クリヤー塗膜層２の上に酸化チタン被膜層１を被膜する。
【０００９】
そして、この酸化チタン被膜層１を被覆する際に、エアーコンプレッサー７から供給した圧縮エアーを静電気除去装置６に送り、その静電気除去装置６によって静電気を除去したエアーを噴霧器５に送り、当該エアーによって酸化銀、酸化チタンおよびエタノールを含有した被膜液１０をクリヤー塗膜層２の上に吹付ける。この吹付けは、物体４（クリヤー塗膜層２）から５０〜７０ｃｍの距離Ｄで行い、また、その噴射圧力は１〜２ｋｇｆ／ｃｍ２に設定している。
【００１０】
この被膜層形成方法においては、噴霧器５で使用するエアーから静電気除去装置６によって静電気を除去しているので、当該エアーによって吹付けられ酸化チタン被膜層１を形成するチタン微粒子１ａが帯電し難い。帯電していないチタン微粒子１ａは吹付けられた通りに整然と並ぶので、その間に隙間Ｇが形成されない（図３参照）。従って、汚れＴが付着し難く、また、帯電したゴミＲが付着することもない。その結果、メタリック塗膜層３の色合いを、そのまま長期間にわたって綺麗に保つことができる。
【００１１】
特に、クリヤー塗膜層２はその上面に凹凸を形成するが、チタン微粒子１ａは帯電していないので、その凹部内に円滑に入り込み、凹凸を平滑面に修復する。従って、メタリック塗膜層３の色合いが綺麗に現出される。
【００１２】
また、噴霧器５と車体４との距離Ｄを５０〜７０ｃｍとし、噴射圧力を１〜２ｋｇｆ／ｃｍ２としたことによって、チタン微粒子１ａをクリヤー塗膜層２に効果的に付着させることができる。従って、これによっても、メタリック塗膜層３の色合いを長期にわたって良好に維持することができる。
【００１３】
【発明の効果】本発明に係る酸化チタン被膜層形成方法は、噴霧器５で使用するエアーから静電気除去装置６によって静電気を除去しているので、酸化チタン被膜層１を形成するチタン微粒子１ａが整然と並び、その間に隙間Ｇが形成されない。従って、汚れＴが付着し難く、また、帯電したゴミＲが付着することもない。その結果、メタリック塗膜層３の色合いを、そのまま長期間にわたって綺麗に保つことができる。
【００１４】
また、噴霧器５と物体４との距離Ｄを５０〜７０ｃｍとし、噴射圧力を１〜２ｋｇｆ／ｃｍ２としたことによって、チタン微粒子１ａをクリヤー塗膜層２に効果的に付着させることができる。これによっても、メタリック塗膜層３の色合いを長期にわたって良好に保つことができる。
【図面の簡単な説明】
【図１】本発明に係る酸化チタン被膜層形成方法の実施形態を示す正面図である。
【図２】本発明方法で形成した被膜層を示す部分拡大断面図である。
【図３】本発明方法で形成した酸化チタン被膜層のチタン微粒子の並びを示す説明図である。
【図４】従来方法で形成した酸化チタン被膜層のチタン微粒子の並びを示す説明図である。
【符号の説明】
１ 酸化チタン被膜層
１ａ チタン微粒子
２ クリヤー塗膜層
３ メタリック塗膜層
４ 車体
５ 噴霧器
６ 静電気除去装置
７ エアーコンプレッサー
１０ 被膜液
Ｄ 距離
Ｇ 隙間
Ｒ ゴミ
Ｔ 汚れ[0001]
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for effectively forming a titanium oxide coating layer on the surface of an object.
[0002]
2. Description of the Related Art Conventionally, after forming a clear coating layer on a metallic coating layer coated on the surface of an object, for example, an automobile body, a coating solution containing silver oxide, titanium oxide and ethanol is formed on the clear coating layer. There is a technique in which a titanium oxide coating layer is formed by spraying with a sprayer. Since the titanium oxide coating layer is inorganic, it exerts effects such as preventing the propagation of various bacteria and making it difficult for dirt to adhere.
[0003]
However, even a vehicle body coated with such a conventional titanium oxide coating layer is discolored after about six months, and the color of the metallic coating layer is reduced.
[0004]
One of the causes is considered to be that static electricity is charged to the air when the coating liquid containing silver oxide, titanium oxide and ethanol is sprayed with a sprayer. When the air is charged, the titanium fine particles 1a which are sprayed with the air and form the titanium oxide coating layer 1 are also easily charged. As a result, a gap G is formed between the repelling titanium fine particles 1a. This is because the dirt T enters the surface or the charged dust R adheres (see FIG. 4).
[0005]
Further, as another cause, it is considered that the distance between the sprayer and the vehicle body when spraying the coating liquid containing silver oxide, titanium oxide, and ethanol, and the injection pressure are not appropriate. For example, if the distance is too close or the spray pressure is too strong, the titanium fine particles will bounce off and cannot be attached well to the clear coating layer.
[0006]
The present invention was devised in view of these problems, and provides a method for effectively forming a titanium oxide coating layer on the surface of an object in order to prevent the color of the metallic coating layer from being reduced. Is an issue.
[0007]
The present invention will be described with reference to FIGS. 1 to 3. FIG. In the titanium oxide coating layer forming method according to the first invention, the clear coating layer 2 is coated on the surface of the object 4 and then the sprayer 5 using air from which static electricity has been removed by the static eliminating device 6 is used. A coating liquid 10 containing titanium oxide and ethanol is sprayed at a spraying pressure of 1 to 2 kgf / cm 2 from a distance D of 50 to 70 cm to form a titanium oxide coating layer 1 on the clear coating layer 2. It is characterized by.
[0008]
1 and 2 show an embodiment of a method for forming a titanium oxide film layer according to the present invention. In this method, first, a metallic coating layer 3 is coated on an object 4 such as an automobile. Next, the clear coating layer 2 is coated on the metallic coating layer 3. Finally, the titanium oxide coating layer 1 is coated on the clear coating layer 2.
[0009]
Then, when the titanium oxide coating layer 1 is coated, the compressed air supplied from the air compressor 7 is sent to the static electricity removing device 6, and the air from which static electricity has been removed by the static electricity removing device 6 is sent to the sprayer 5. A coating solution 10 containing silver oxide, titanium oxide and ethanol is sprayed onto the clear coating layer 2. This spraying is performed at a distance D of 50 to 70 cm from the object 4 (clear coating layer 2), and the spraying pressure is set to 1 to 2 kgf / cm 2 .
[0010]
In this coating layer forming method, since static electricity is removed from the air used in the sprayer 5 by the static electricity removing device 6, the titanium fine particles 1a that are sprayed by the air to form the titanium oxide coating layer 1 are difficult to be charged. Since the uncharged titanium fine particles 1a are regularly arranged as sprayed, no gap G is formed between them (see FIG. 3). Therefore, the dirt T hardly adheres and the charged dust R does not adhere. As a result, the hue of the metallic coating layer 3 can be kept clean as it is for a long time.
[0011]
In particular, the clear coating layer 2 forms irregularities on the upper surface thereof, but the titanium fine particles 1a are not charged, so they smoothly enter the concave portions and restore the irregularities to a smooth surface. Therefore, the hue of the metallic coating layer 3 appears beautifully.
[0012]
Moreover, the fine titanium particles 1a can be effectively adhered to the clear coating layer 2 by setting the distance D between the sprayer 5 and the vehicle body 4 to 50 to 70 cm and the spraying pressure to 1 to 2 kgf / cm 2 . Accordingly, the color tone of the metallic coating layer 3 can be maintained well over a long period of time.
[0013]
In the titanium oxide film layer forming method according to the present invention, the static electricity is removed from the air used in the sprayer 5 by the static electricity removing device 6, so that the titanium fine particles 1a forming the titanium oxide film layer 1 are ordered. A gap G is not formed between them. Therefore, the dirt T hardly adheres and the charged dust R does not adhere. As a result, the hue of the metallic coating layer 3 can be kept clean as it is for a long time.
[0014]
Moreover, the fine titanium particles 1a can be effectively adhered to the clear coating layer 2 by setting the distance D between the sprayer 5 and the object 4 to 50 to 70 cm and the spraying pressure to 1 to 2 kgf / cm 2 . Also by this, the hue of the metallic coating film layer 3 can be kept good over a long period of time.
[Brief description of the drawings]
FIG. 1 is a front view showing an embodiment of a method for forming a titanium oxide film layer according to the present invention.
FIG. 2 is a partially enlarged sectional view showing a coating layer formed by the method of the present invention.
FIG. 3 is an explanatory view showing an arrangement of titanium fine particles of a titanium oxide coating layer formed by the method of the present invention.
FIG. 4 is an explanatory view showing an arrangement of titanium fine particles of a titanium oxide coating layer formed by a conventional method.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 Titanium oxide coating layer 1a Titanium fine particle 2 Clear coating layer 3 Metallic coating layer 4 Car body 5 Sprayer 6 Static electricity removal apparatus 7 Air compressor 10 Coating liquid D Distance G Clearance R Garbage T Dirt
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003174266A JP2005007287A (en) | 2003-06-19 | 2003-06-19 | Titanium oxide coating film layer formation method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2003174266A JP2005007287A (en) | 2003-06-19 | 2003-06-19 | Titanium oxide coating film layer formation method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2005007287A true JP2005007287A (en) | 2005-01-13 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2003174266A Pending JP2005007287A (en) | 2003-06-19 | 2003-06-19 | Titanium oxide coating film layer formation method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2005007287A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011016527A1 (en) * | 2009-08-07 | 2011-02-10 | 株式会社モチガセ | Hydroxyl radical generator, antiviral material using hydroxyl radical generator, and method for generating hydroxyl radicals |
| JP2017066122A (en) * | 2015-09-28 | 2017-04-06 | 森屋 市郎 | Improved reduction method of carbon dioxide |
-
2003
- 2003-06-19 JP JP2003174266A patent/JP2005007287A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011016527A1 (en) * | 2009-08-07 | 2011-02-10 | 株式会社モチガセ | Hydroxyl radical generator, antiviral material using hydroxyl radical generator, and method for generating hydroxyl radicals |
| JP5941676B2 (en) * | 2009-08-07 | 2016-06-29 | 典生 山本 | Hydroxyl radical generator, antiviral material using hydroxyl radical generator, method for producing hydroxyl radical generator, and method for generating hydroxyl radical |
| JP2017066122A (en) * | 2015-09-28 | 2017-04-06 | 森屋 市郎 | Improved reduction method of carbon dioxide |
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