JP2008024572A - Method for putting mark on titanium oxide - Google Patents
Method for putting mark on titanium oxide Download PDFInfo
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- JP2008024572A JP2008024572A JP2006202090A JP2006202090A JP2008024572A JP 2008024572 A JP2008024572 A JP 2008024572A JP 2006202090 A JP2006202090 A JP 2006202090A JP 2006202090 A JP2006202090 A JP 2006202090A JP 2008024572 A JP2008024572 A JP 2008024572A
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- titanium oxide
- oxide film
- marking
- mark
- foam
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- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 title claims abstract description 61
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 title claims abstract description 60
- 238000000034 method Methods 0.000 title claims abstract description 29
- 230000007547 defect Effects 0.000 claims abstract description 12
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims abstract description 11
- 229910052760 oxygen Inorganic materials 0.000 claims abstract description 11
- 239000001301 oxygen Substances 0.000 claims abstract description 11
- 239000006260 foam Substances 0.000 claims description 26
- 239000000919 ceramic Substances 0.000 claims description 17
- PNEYBMLMFCGWSK-UHFFFAOYSA-N aluminium oxide Inorganic materials [O-2].[O-2].[O-2].[Al+3].[Al+3] PNEYBMLMFCGWSK-UHFFFAOYSA-N 0.000 claims description 7
- 239000011941 photocatalyst Substances 0.000 description 6
- 239000002002 slurry Substances 0.000 description 6
- 239000010936 titanium Substances 0.000 description 6
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 description 4
- 230000000052 comparative effect Effects 0.000 description 4
- 229910052719 titanium Inorganic materials 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N Ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 238000004332 deodorization Methods 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 238000010304 firing Methods 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- NINIDFKCEFEMDL-UHFFFAOYSA-N Sulfur Chemical compound [S] NINIDFKCEFEMDL-UHFFFAOYSA-N 0.000 description 1
- 229910010413 TiO 2 Inorganic materials 0.000 description 1
- 229910052799 carbon Inorganic materials 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 229910052739 hydrogen Inorganic materials 0.000 description 1
- 239000001257 hydrogen Substances 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000001590 oxidative effect Effects 0.000 description 1
- 230000001699 photocatalysis Effects 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000011593 sulfur Substances 0.000 description 1
- 239000004408 titanium dioxide Substances 0.000 description 1
- GQUJEMVIKWQAEH-UHFFFAOYSA-N titanium(III) oxide Chemical compound O=[Ti]O[Ti]=O GQUJEMVIKWQAEH-UHFFFAOYSA-N 0.000 description 1
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- Inorganic Compounds Of Heavy Metals (AREA)
Abstract
Description
本発明は光触媒脱臭装置の光触媒等として用いるのに適する酸化チタンにマークを付するマーク付け方法に関する。 The present invention relates to a marking method for marking titanium oxide suitable for use as a photocatalyst or the like of a photocatalytic deodorization apparatus.
従来、光触媒フィルタと光源を組み合わせた光触媒脱臭装置が実用化され、光触媒フィルタには、基材となるセラミックフォームに、光触媒として作用する酸化チタンを担持して用いている。 Conventionally, a photocatalyst deodorization apparatus combining a photocatalyst filter and a light source has been put into practical use, and the photocatalyst filter is used by supporting titanium oxide acting as a photocatalyst on a ceramic foam as a base material.
しかし、三次元網目の不規則な構造を有するセラミックフォームは、凹凸が激しく、印字することは困難であり、また、酸化チタンを担持したセラミックフォームにおいて、基材のセラミックフォームが例えば、アルミナのように白色である場合、酸化チタンが担持されていても、担持されていないものと目視では、区別はできず、両者は混同しやすかった（特許文献１）。 However, a ceramic foam having an irregular structure with a three-dimensional network has severe irregularities and is difficult to print. In a ceramic foam carrying titanium oxide, the ceramic foam of the base material is, for example, alumina. In the case of white, even if titanium oxide was supported, it was visually indistinguishable from those not supported, and both were easily confused (Patent Document 1).
そこで、酸化チタン担持品と非担持品を区別するために、セラミックフォームの側面などに、ラベルを貼る方法や油性ペンなどでマークを付ける方法などが用いられている。 Therefore, in order to distinguish between a titanium oxide-carrying product and a non-carrying product, a method of sticking a label on a side surface of a ceramic foam or a method of marking with an oil-based pen or the like is used.
しかしながら、このような方法では、光触媒の酸化力により、劣化する可能性がある。また、セラミックフォームのメンテナンスの時に、洗浄または焼成するため、マークがわからなくなってしまい、セラミックフォームの個別識別管理（トレーサビリティー）は品質管理上、困難であった。 However, such a method may deteriorate due to the oxidizing power of the photocatalyst. Further, since the mark is not known because the ceramic foam is cleaned or fired during maintenance of the ceramic foam, individual identification management (traceability) of the ceramic foam is difficult in terms of quality control.
そのため、酸化チタンに容易かつ確実にマークを設けることができるマーク付け方法が要望されている。 Therefore, there is a demand for a marking method capable of easily and reliably providing a mark on titanium oxide.
なお、レーザ光を用いて部材内部にマーク付けする提案がある（特許文献２）。
本発明は上述した事情を考慮してなされたもので、酸化チタン膜に容易かつ確実にマークを付けることができるマーク付け方法を提供することを目的とする。 The present invention has been made in consideration of the above-described circumstances, and an object thereof is to provide a marking method capable of easily and reliably marking a titanium oxide film.
上述した目的を達成するため、本発明に係る酸化チタン膜のマーク付け方法は、酸化チタン膜を形成する酸化チタンに酸素欠陥を生じさせて、酸化チタン膜にマークを付することを特徴とする。 In order to achieve the above-described object, the titanium oxide film marking method according to the present invention is characterized in that oxygen defects are generated in the titanium oxide forming the titanium oxide film and the titanium oxide film is marked. .
本発明に係る酸化チタン膜のマーク付け方法によれば、酸化チタン膜に容易かつ確実にマークを付することができる酸化チタン膜のマーク付け方法を提供することができる。 According to the titanium oxide film marking method of the present invention, it is possible to provide a titanium oxide film marking method capable of easily and reliably marking a titanium oxide film.
本発明の一実施形態に係る酸化チタン膜のマーク付け方法について添付図面を参照して説明する。 A method for marking a titanium oxide film according to an embodiment of the present invention will be described with reference to the accompanying drawings.
図１は本発明の一実施形態に係る酸化チタン膜のマーク付け方法の概念図である。 FIG. 1 is a conceptual diagram of a method for marking a titanium oxide film according to an embodiment of the present invention.
本発明に係る酸化チタン膜のマーク付け方法は、酸化チタン膜を形成する酸化チタンに酸素欠陥を生じさせて、酸化チタン膜にマークを付する方法であり、酸化チタン膜を形成する酸化チタンに適宜の方法により、酸素欠陥を生じさせる。 The method of marking a titanium oxide film according to the present invention is a method of causing oxygen defects in the titanium oxide forming the titanium oxide film and marking the titanium oxide film. Oxygen defects are generated by an appropriate method.
例えば、図１に示すように、白色の酸化チタン膜１が担持されたセラミックフォームと白色のアルミナフォーム２を用意する。 For example, as shown in FIG. 1, a ceramic foam carrying a white titanium oxide film 1 and a white alumina foam 2 are prepared.
この酸化チタン膜担持セラミックフォームの製造は、例えば、アルミナ原料粉末を溶媒に分散させてスラリーを調製し、このスラリーをウレタンフォームに浸透させて、骨格表面にスラリー層を形成させた後、焼成してウレタンを焼き抜き、セラミックフォームを得るか、スラリーに架橋重合性樹脂を混合撹拌し、泡状として架橋させた後、焼成し、セラミックフォームを得、さらに、このアルミナからなるセラミックフォームを、例えば、アナターゼ型酸化チタンと、炭素、水素、窒素、硫黄から選ばれた少なくとも２種類がドープされているアナターゼ型酸化チタンとの混合物からなる酸化チタン微粒子が含まれるスラリーに浸漬等して、セラミックフォーム表面に酸化チタン微粒子を配置し、熱処理する。 This titanium oxide film-supported ceramic foam can be manufactured, for example, by dispersing a slurry of alumina raw material in a solvent to prepare a slurry, and then infiltrating the slurry into urethane foam to form a slurry layer on the skeleton surface, followed by firing. Urethane is burned out to obtain a ceramic foam, or the slurry is mixed and stirred with a cross-linkable polymerizable resin and crosslinked in the form of foam, and then fired to obtain a ceramic foam. The ceramic foam is immersed in a slurry containing titanium oxide fine particles composed of a mixture of anatase-type titanium oxide and anatase-type titanium oxide doped with at least two types selected from carbon, hydrogen, nitrogen, and sulfur. Titanium oxide fine particles are placed on the surface and heat-treated.
このようにして用意された酸化チタン膜１の側面にレーザ光を照射し、酸化チタン膜１の側面に酸素欠陥Ｍを生じさせる。 The side surface of the titanium oxide film 1 prepared in this way is irradiated with laser light, and oxygen defects M are generated on the side surface of the titanium oxide film 1.
この酸素欠陥は五酸化三チタン（Ｔｉ３Ｏ５）、三酸化二チタン（Ｔｉ２Ｏ３）、あるいは、酸化チタン（ＴｉＯ）となり、この結果生ずるＴｉＯ2-Xは、黒に近い色になる。 The oxygen defects are trititanium pentoxide (Ti 3 O 5 ), dititanium trioxide (Ti 2 O 3 ), or titanium oxide (TiO), and the resulting TiO 2 -X has a color close to black. .
従って、酸化チタンが担持されたフォームはマークを付することができるが、担持されていないフォームは、酸化チタンが無いため、マークを付することができない。これにより、容易かつ確実に酸化チタン膜にマークを付することができ、このマークを目視で識別して酸化チタン膜担持品と非担持品を容易に区別できる。 Therefore, a foam carrying titanium oxide can be marked, but a foam not carrying can not be marked because there is no titanium oxide. Thereby, a mark can be easily and reliably attached to the titanium oxide film, and this mark can be visually identified to easily distinguish the titanium oxide film-supported product from the non-supported product.
上記酸素欠陥を生じさせる方法は、化学的またはプラズマ装置の利用あるいはレーザ光照射などいずれの方法でもよく、特に、レーザ光の照射によれば、酸化チタン膜の多小の凹凸面に対しても有効であり、三次元網目の不規則な構造に対しても有効である。マークは単なるマークのほか判別可能な文字、数字あるいはバーコードなどの識別子であってもよく、レーザ光によれば、これら文字、数字あるいはバーコードなども容易に付することができる。 The method for generating the oxygen defect may be any method such as chemical or plasma device irradiation or laser light irradiation. In particular, the laser light irradiation can be applied to the small and uneven surface of the titanium oxide film. This is effective, and is also effective for an irregular structure of a three-dimensional network. The mark may be an identifier such as a distinguishable character, numeral, or barcode as well as a simple mark. According to the laser beam, these letter, numeral, barcode, or the like can be easily attached.
本実施形態によれば、酸化チタン膜に黒に近い色に変色させたマークを付すことにより、白色のアルミナフォームに白色の酸化チタンが担持された担持品と未担持品の目視による識別が可能となり、さらに、酸素欠陥は洗浄や焼成では、ほとんど変化しないため、半永久的にマークが付された状態が保たれるため、酸化チタン担持品に個別の番号を付することにより、酸化チタン担持品の個別識別管理を確立できる。また、レーザでマークすれば、セラミックフォーム表面に形成されたような酸化チタン膜に対しても文字など明瞭なマークを形成することができ、膜の有無のみならず、製品履歴の管理などにも利用できる。 According to this embodiment, by attaching a mark changed to a color close to black on the titanium oxide film, it is possible to visually distinguish between a supported product in which white titanium oxide is supported on a white alumina foam and an unsupported product. Furthermore, since oxygen defects are hardly changed by cleaning and firing, the mark is kept semi-permanently. Therefore, by attaching individual numbers to titanium oxide-carrying products, titanium oxide-carrying products Individual identification management can be established. In addition, by marking with a laser, it is possible to form clear marks such as letters on the titanium oxide film as formed on the ceramic foam surface. Available.
図１に示すような本発明に係る酸化チタン膜のマーク付け方法を用いて、アルミナフォームに担持された酸化チタン膜にＣＯ２レーザ出力３０Ｗを照射し、マークの有無を調べる（実施例）。また、図２に示すように、酸化チタンを担持しない未担持品のアルミナフォームに同様のレーザ光を照射して、マークの有無を調べる（比較例）。 A titanium oxide film marking method according to the present invention as shown in FIG. 1 is used to irradiate a titanium oxide film supported on an alumina foam with a CO 2 laser output of 30 W to examine the presence or absence of a mark (Example). In addition, as shown in FIG. 2, the same laser light is irradiated to an unsupported alumina foam that does not support titanium oxide, and the presence or absence of a mark is examined (comparative example).
結果を図３および図４に示す。図３からもわかるように、実施例の酸化チタン担持品では、黒いマークが付されている。これに対して、図４からもわかるように、比較例の未担持品にはマークが付されていない。これらマークの有無は、レーザ光の照射により結晶欠陥を生じる二酸化チタン膜の有無による。 The results are shown in FIG. 3 and FIG. As can be seen from FIG. 3, the titanium oxide-carrying product of the example is marked with a black mark. On the other hand, as can be seen from FIG. 4, the unsupported product of the comparative example is not marked. The presence or absence of these marks depends on the presence or absence of a titanium dioxide film that causes crystal defects when irradiated with laser light.
１ 酸化チタン膜
２ セラミックフォーム
Ｍ 酸素欠陥
1 Titanium oxide film 2 Ceramic foam M Oxygen defect
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2006202090A JP2008024572A (en) | 2006-07-25 | 2006-07-25 | Method for putting mark on titanium oxide |
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| JP2006202090A JP2008024572A (en) | 2006-07-25 | 2006-07-25 | Method for putting mark on titanium oxide |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020023430A (en) * | 2018-07-31 | 2020-02-13 | 京セラ株式会社 | Ceramic sintered body, ceramic sintered body for identification displaying, housing for electronic component and method of producing housing for electronic component, substrate for installing electronic component and method of producing substrate for installing electronic component, and component for semiconductor producing equipment and method of producing component for semiconductor producing equipment |
| WO2021176946A1 (en) * | 2020-03-06 | 2021-09-10 | 株式会社村田製作所 | Photocatalyst article, manufacturing method thereof, manufacturing method of photocatalytic reaction product using photocatalyst article, and photocatalytic reaction device |
-
2006
- 2006-07-25 JP JP2006202090A patent/JP2008024572A/en active Pending
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2020023430A (en) * | 2018-07-31 | 2020-02-13 | 京セラ株式会社 | Ceramic sintered body, ceramic sintered body for identification displaying, housing for electronic component and method of producing housing for electronic component, substrate for installing electronic component and method of producing substrate for installing electronic component, and component for semiconductor producing equipment and method of producing component for semiconductor producing equipment |
| WO2021176946A1 (en) * | 2020-03-06 | 2021-09-10 | 株式会社村田製作所 | Photocatalyst article, manufacturing method thereof, manufacturing method of photocatalytic reaction product using photocatalyst article, and photocatalytic reaction device |
| JPWO2021176946A1 (en) * | 2020-03-06 | 2021-09-10 | ||
| JP7311024B2 (en) | 2020-03-06 | 2023-07-19 | 株式会社村田製作所 | Photocatalytic product, method for producing the same, method for producing a photocatalytic reaction product using the same, and photocatalytic reaction device |
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