JP3117876B2 - Colored titanium material or colored titanium alloy material by anodic oxidation with high lightness and low chroma color tone - Google Patents
Colored titanium material or colored titanium alloy material by anodic oxidation with high lightness and low chroma color toneInfo
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- JP3117876B2 JP3117876B2 JP06183781A JP18378194A JP3117876B2 JP 3117876 B2 JP3117876 B2 JP 3117876B2 JP 06183781 A JP06183781 A JP 06183781A JP 18378194 A JP18378194 A JP 18378194A JP 3117876 B2 JP3117876 B2 JP 3117876B2
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- Prior art keywords
- titanium
- colored titanium
- color tone
- color
- titanium alloy
- Prior art date
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- Other Surface Treatments For Metallic Materials (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、建材や装飾品などに使
用する陽極酸化による発色チタン材に関し、特に、梨地
状のチタン材またはチタン合金材に陽極酸化処理を施し
た高明度・低彩度の色調を有する発色チタン材または発
色チタン合金材（以下チタン材およびチタン合金材を総
合してチタン材という。）に関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an anodically oxidized titanium material used for building materials and decorative articles, and more particularly to a high-brightness, low-colored anodized titanium or titanium alloy material. The present invention relates to a colored titanium material or a colored titanium alloy material having a degree of color tone (hereinafter, titanium material and titanium alloy material are collectively referred to as titanium material).
【０００２】[0002]
【従来の技術】近年、発色チタン材は、腐食環境の厳し
い地域での屋根材、外装用としてのみならず、意匠性及
び美感を重んずるインテリアパネルとして、また、高級
性及びファッション性を重んじるアクセサリー及びタイ
ピンなどの装飾品として注目を浴びている。2. Description of the Related Art In recent years, colored titanium materials have been used not only as roofing materials and exterior materials in areas with severe corrosive environments, but also as interior panels that value design and aesthetics, as well as accessories and materials that value luxury and fashion. Attention has been paid to decorative items such as tie pins.
【０００３】発色チタン材としては従来から大気酸化法
によるもの、陽極酸化法によるもの化成処理法によるも
のが知られている。これらの発色チタン材の中でも特に
陽極酸化法によるものは種々の色を有するが、原色に近
い鮮やかな色彩のものに限られる。多様化するデザイン
上の要求に対応すべく、低彩度の色調の発色チタン材を
製造するために、以下のような研究がなされている。[0003] Conventionally, as the coloring titanium material, those formed by an atmospheric oxidation method, those formed by an anodic oxidation method, and those formed by a chemical conversion method are known. Among these colored titanium materials, those produced by the anodic oxidation method have various colors, but are limited to those of vivid colors close to the primary colors. In order to respond to diversifying design requirements, the following research has been conducted to produce a color developing titanium material having a low saturation color tone.
【０００４】特開昭６２−１８２２９９号公報には、陽
極酸化発色皮膜形成剤としてモリブデン酸ナトリウム、
モリブデン酸アンモニウム、燐酸二アンモニウム、フッ
化ナトリウムの中から選択した２種またはそれ以上の無
機化合物を添加し、５０℃以下において５〜９０Ｖの直
流通電を行うことにより、うすい金色、うすい青色、う
すい水色などの低彩度の発色が可能であることが開示さ
れている。しかし、希望の発色を得るための電解浴の調
整、及び浴管理が難しいという欠点がある。Japanese Patent Application Laid-Open No. 62-182299 discloses sodium molybdate as an anodizing color-forming film forming agent,
Two or more inorganic compounds selected from ammonium molybdate, diammonium phosphate and sodium fluoride are added, and a direct current of 5 to 90 V is applied at a temperature of 50 ° C. or less to give a pale golden, pale blue, or pale blue. It is disclosed that low-saturation color development such as light blue is possible. However, there is a drawback that it is difficult to adjust an electrolytic bath to obtain a desired color and to manage the bath.
【０００５】また、陽極酸化法は種々の発色が得られる
ものの、着色ムラが生じ易いという欠点がある。この防
止策として、陽極酸化の前処理である酸洗が挙げられる
が、酸洗液（一般に弗酸を含む水溶液を使用する）の濃
度差による明度ムラ、酸洗後の水洗までの間にチタンイ
オンが再析出することに起因する発色ムラが問題となっ
ている。[0005] In addition, although the anodizing method can produce various colors, it has a drawback that coloring unevenness is likely to occur. To prevent this, pickling, which is a pretreatment for anodic oxidation, may be mentioned. However, unevenness in brightness due to the concentration difference of the pickling solution (generally using an aqueous solution containing hydrofluoric acid), and titanium washing between pickling and water washing. Color unevenness due to re-precipitation of ions is a problem.
【０００６】[0006]
【発明が解決しようとする課題】かくして本発明の目的
は、複雑な電解浴の調整及び浴管理を必要としない、陽
極酸化法による高明度・低彩度の色調を有する発色チタ
ン材（純チタン材及びチタン合金材）を提供することで
ある。SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a color-forming titanium material (pure titanium) having a high brightness and a low chroma color tone by an anodizing method, which does not require complicated electrolytic bath adjustment and bath management. Materials and titanium alloy materials).
【０００７】[0007]
【課題を解決するための手段】本発明は、ブラスト仕上
げによる梨地状のチタン材に陽極酸化処理を施して、高
明度・低彩度の色調を有することを特徴とする発色チタ
ン材である。SUMMARY OF THE INVENTION The present invention is a color-forming titanium material characterized by having a high brightness and a low color tone by subjecting a blast-finished satin-like titanium material to anodizing treatment.
【０００８】本発明者は、簡易に、陽極酸化法によるう
すい色調の発色チタン材を得るべく、下地の表面粗度と
発色の関係などについて調査・研究を行った。ここで言
う高明度・低彩度の色調とはＪＩＳＺ８７２９に記載さ
れているＬ* ａ* ｂ* 表色系において、Ｌ* （明度）が
高く、かつＣ* （彩度）が低いもの、具体的にはＬ*が
４５以上でかつＣ* が５以上３５以下である。そして、
この高明度・低彩度の発色を得るにはチタン材の表面粗
度を上げることが重要であることが分かった。本発明者
らは、様々な条件により梨地状の加工を施したチタン材
に陽極酸化処理を施した結果、Ｇｓ（４５°）が５０％
以下であってもＲmax が６μｍ以下のものではうすい色
調の発色は得られず、また、Ｒmax が６μｍ以上であっ
てもＧｓ（４５°）が５０％以上では低彩度の色調の発
色は得られなかった。従って、低彩度の色調の発色を得
るには、Ｇｓ（４５°）を５０％以下、かつＲmax を６
μｍ以上に制御し、素材表面に均一なザラツキ感をもた
せる必要があることが分かった。The present inventor has conducted investigations and researches on the relationship between the surface roughness of the base and the color development in order to easily obtain a color developing titanium material having a light color tone by the anodic oxidation method. The high lightness / low saturation color tone referred to here means a color system having a high L * (lightness) and a low C * (saturation) in the L * a * b * color system described in JISZ8729. Specifically, L * is 45 or more and C * is 5 or more and 35 or less. And
It has been found that it is important to increase the surface roughness of the titanium material in order to obtain high brightness and low color saturation. The present inventors performed anodizing treatment on a titanium material that had been subjected to a satin-like processing under various conditions, and as a result, Gs (45 °) was 50%.
If the Rmax is 6 μm or less, a light color tone cannot be obtained, and even if the Rmax is 6 μm or more, a low-saturation color tone can be obtained if the Gs (45 °) is 50% or more. I couldn't. Therefore, in order to obtain a low-saturation color tone, Gs (45 °) is set to 50% or less and Rmax is set to 6%.
It has been found that it is necessary to control the thickness to not less than μm and to give a uniform roughness to the material surface.
【０００９】上記の条件を満たす発色チタン材は、一般
的に使用されているダル材に発色を施したものと比較し
ても、同程度のＬ* でかつＣ* が３割〜５割のＣ* にな
ることが確認された。[0009] The colored titanium material satisfying the above conditions has the same L * and C * of 30% to 50% as compared with a commonly used dull material colored. It was confirmed to be C * .
【００１０】この発明は、上記知見によってなされたも
のであって、その要旨とするところは、ブラスト仕上げ
による梨地状であって、Ｇｓ（４５°）が５０％以下、
Ｒmax が６μｍ以上の表面粗度を有する材料に陽極酸化
処理を施した高明度・低彩度の色調であることを特徴と
する発色チタン材である。[0010] The present invention has been made based on the above findings, and the gist of the invention is that it has a satin finish by blasting and has a Gs (45 °) of 50% or less,
A color developing titanium material characterized by having a high lightness and low chroma color tone obtained by anodizing a material having a surface roughness of 6 μm or more in Rmax.
【００１１】[0011]
【作用】チタン材の表面状態をブラスト仕上げによる梨
地状であって、Ｇｓ（４５°）が５０％以下、Ｒmax が
６μｍ以上に限定した理由について述べる。 （１）Ｇｓ（４５°）を５０％以下に限定した理由 Ｇｓ（４５°）は発色材の金属光沢に影響を与える。Ｇ
ｓ（４５°）を低下させることは完全拡散表面に近づけ
ること、すなわち金属光沢を低減させることであるた
め、Ｇｓ（４５°）が５０％以下である発色材のＬ* は
ダル材に発色を施したものＬ* と同程度の値でありなが
ら金属光沢は低減する。The reason why the surface condition of the titanium material is satin-like by blasting, Gs (45 °) is limited to 50% or less, and Rmax is limited to 6 μm or more will be described. (1) Reasons for limiting Gs (45 °) to 50% or less Gs (45 °) affects the metallic luster of the coloring material. G
Since lowering s (45 °) is to approach a completely diffused surface, that is, reducing metallic luster, L * of the coloring material having Gs (45 °) of 50% or less gives color to the dull material. The metallic luster is reduced while having the same value as that of the applied L * .
【００１２】（２）Ｒmax を６μｍ以上に限定した理由 Ｒmax は発色材のＣ* に影響を与える。Ｒmax を低下さ
せることは、表面に均一なザラツキ感を与えることであ
り、発色材は白みがかった色調になるためＣ*は低下す
る。Ｒmax が６μｍ以上である発色材のＣ* は、ダル材
に発色を施したものの３〜５割の値となる。(2) Reasons for limiting Rmax to 6 μm or more Rmax affects C * of the color forming material. Reducing Rmax is to give a uniform roughness to the surface, and the color developing material has a whitish color tone, so that C * is reduced. C * of the coloring material having Rmax of 6 μm or more is 30 to 50% of the value obtained by coloring the dull material.
【００１３】（３）チタン材の表面仕上げをブラストに
限定した理由 チタン材の表面を梨地状に加工する方法はブラストの他
には酸洗が挙げられるが、酸洗仕上げではＲmax を大き
くすることが難しいだけでなくムラ・シミの少ない表面
が得られにくく、また着色皮膜の密着性が劣るという大
きな問題があるため、ブラスト仕上げに限定した。(3) Reasons for limiting the surface finish of titanium material to blasting A method of processing the surface of the titanium material into a satin finish includes pickling other than blasting. In pickling finish, it is necessary to increase Rmax. In addition, it is difficult to obtain a surface with less unevenness and stains, and there is a big problem that the adhesion of the colored film is inferior.
【００１４】本発明により、高明度・低彩度の色調の発
色で、しかも鏡面反射のない発色チタン材が提供でき
る。また、高明度・低彩度の色調の発色を得るためのブ
ラスト仕上げにより、陽極酸化前処理工程の酸洗・水洗
が省略化でき、かつ表面発色状態の揃った発色チタン材
を得ることを可能にした。本発明は電解条件を限定しな
いため、一般的な電解浴である硫酸浴、硫酸−燐酸混合
浴、あるいは硫酸−燐酸−化酸化水素混合浴中で高明度
・低彩度の色調の発色材が得られる。本発明は、従来広
く使用されている硫酸−燐酸混合浴などをそのまま利用
できる上に、酸洗工程を必要としないため、従来技術に
みられるような表面発色状態の相違は生じない。According to the present invention, it is possible to provide a color-developing titanium material which has a color tone of high lightness and low chroma and has no specular reflection. In addition, by blasting to obtain high brightness and low saturation color development, it is possible to omit acid pickling and water washing in the pre-anodization pretreatment process, and to obtain a colored titanium material with a uniform surface coloring state I made it. Since the present invention does not limit the electrolysis conditions, a coloring material having a high lightness and low chroma color tone in a general electrolytic bath such as a sulfuric acid bath, a sulfuric acid-phosphoric acid mixed bath, or a sulfuric acid-phosphoric acid-hydrogen oxide mixed bath is used. can get. According to the present invention, a sulfuric acid-phosphoric acid mixed bath which has been widely used in the past can be used as it is, and a pickling step is not required, so that there is no difference in the state of surface coloring as seen in the prior art.
【００１５】[0015]
【実施例】本発明を実施例に基づいて詳細に説明する。
試料として、圧延ロール表面にショットを施し、冷間圧
延の際圧延ロールの粗度をチタン材表面に転写したダル
仕上げの純チタン板、およびアルミナ微粉体を投射した
ブラスト仕上げの純チタン板（板厚０．４mm）を８０mm
×８０mmに切断し、脱脂により清浄化したものを用い
た。DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described in detail based on embodiments.
As a sample, a dull-finished pure titanium plate in which a shot was applied to the surface of a roll and the roughness of the roll was transferred to the surface of the titanium material during cold rolling, and a blast-finished pure titanium plate (plate) in which alumina fine powder was projected Thickness 0.4mm) to 80mm
A piece cut to 80 mm and cleaned by degreasing was used.
【００１６】表１に、浴温２０℃〜２１℃の１０ｇ／リ
ットル硫酸−１０ｇ／リットル燐酸浴中で、ダル表面の
純チタン板および種々の条件でアルミナブラスト処理を
施した純チタン板に、自然浸漬状態から、所定電圧で１
分間陽極酸化した後、自然浸漬状態に戻す電圧パターン
で陽極酸化を行い、発色させたチタン材のＬ* 、Ｃ*を
示す。この表からＧｓ（４５°）が５０％以下、Ｒmax
が６μｍ以上である梨地状のブラストチタンに於いて高
明度・低彩度の色調の発色が得られることが判る。Table 1 shows that a pure titanium plate having a dull surface and a pure titanium plate having been subjected to an alumina blast treatment under various conditions in a 10 g / l sulfuric acid-10 g / l phosphoric acid bath at a bath temperature of 20 ° C. to 21 ° C. From the natural immersion state, 1
L * and C * of the titanium material that has been anodized in a voltage pattern to return to the naturally immersed state after anodization for minutes, and thus developed, are shown. From this table, Gs (45 °) is 50% or less, Rmax
It can be seen that in a satin-like blasted titanium having a particle size of 6 μm or more, high brightness and low chroma color tone can be obtained.
【００１７】[0017]
【表１】 [Table 1]
【００１８】図１に、Ｇｓ（４５°）＝１３４．７（表
面ダル）および２０．０（表面ブラスト）の純チタン板
について陽極酸化電圧と発色材のＣ* 、図２にＧｓ（４
５°）＝１３４．７（表面ダル）および２０．０（表面
ブラスト）の純チタン板について陽極酸化電圧と発色材
のＬ* を示す。これらの図から、従来法で作製した発色
チタン材に比較し、本発明法で作製したのものは、どの
陽極酸化電圧に於いても、高明度・低彩度の色調の発色
材が得られることがわかる。以上についてはチタン合金
材に適用しても同様の結果が得られる。FIG. 1 shows the anodic oxidation voltage and C * of the coloring material for a pure titanium plate of Gs (45 °) = 134.7 (surface dull) and 20.0 (surface blast), and FIG.
5 °) = 134.7 (surface dull) and 20.0 (surface blast) of pure titanium plate. The anodic oxidation voltage and the L * of the coloring material are shown. From these figures, as compared with the coloring titanium material produced by the conventional method, the coloring material produced by the method of the present invention can obtain a coloring material having a high brightness and a low chroma at any anodic oxidation voltage. You can see that. The same result can be obtained by applying the above to a titanium alloy material.
【００１９】[0019]
【発明の効果】以上のように、本発明の高明度・低彩度
の色調の発色チタン材または発色チタン合金材は、建築
材料及びアクセサリー類や装飾品等に最適の素材として
高範囲な利用が期待できる。As described above, the high-brightness / low-saturation color-forming titanium material or titanium alloy material of the present invention can be used in a wide range as an optimum material for building materials, accessories, and decorative articles. Can be expected.
【図１】Ｇｓ（４５°）＝１３４．７（表面ダル）およ
び２０．０（表面ブラスト）の純チタンについて陽極酸
化電圧と発色材のＣ* をプロットしたものである。FIG. 1 is a plot of anodizing voltage and C * of a coloring material for pure titanium with Gs (45 °) = 134.7 (surface dull) and 20.0 (surface blast).
【図２】Ｇｓ（４５°）＝１３４．７（表面ダル）およ
び２０．０（表面ブラスト）の純チタンについて陽極酸
化電圧と発色材のＬ* をプロットしたものである。FIG. 2 is a plot of anodizing voltage and L * of a coloring material for pure titanium having Gs (45 °) of 134.7 (surface dull) and 20.0 (surface blast).
───────────────────────────────────────────────────── フロントページの続き (72)発明者 高橋 康雄 東京都千代田区大手町２−６−３ 新日 本製鐵株式会社内 (72)発明者 添田 精一 東京都千代田区大手町２−６−３ 新日 本製鐵株式会社内 (56)参考文献 特開 平２−221396（ＪＰ，Ａ) 特開 平１−127696（ＪＰ，Ａ) 特開 昭63−247374（ＪＰ，Ａ) 特開 昭63−237816（ＪＰ，Ａ) 特開 昭62−224698（ＪＰ，Ａ) (58)調査した分野(Int.Cl.7，ＤＢ名) C25D 11/26 ──────────────────────────────────────────────────続 き Continued on the front page (72) Inventor Yasuo Takahashi 2-6-3 Otemachi, Chiyoda-ku, Tokyo Inside Nippon Steel Corporation (72) Inventor Seiichi Soeda 2-6, Otemachi, Chiyoda-ku, Tokyo -3 Inside Nippon Steel Corporation (56) References JP-A-2-221396 (JP, A) JP-A-1-127696 (JP, A) JP-A-63-247374 (JP, A) JP 63-237816 (JP, A) JP-A-62-224698 (JP, A) (58) Fields investigated (Int. Cl. 7 , DB name) C25D 11/26
Claims (1)
のチタン材またはチタン合金材であって、入射角４５
°、受光角４５°の鏡面光沢度（以下Ｇｓ（４５°）と
呼ぶ。）が５０％以下、Ｒmax が６μｍ以上であるチタ
ン材またはチタン合金材の表面に、Ｌ* （明度）が４５
以上で、かつＣ* （彩度）が５以上３５以下である干渉
皮膜を形成した高明度・低彩度の色調を有する陽極酸化
による発色チタン材または発色チタン合金材。1. A matt-like titanium material or titanium alloy material whose surface condition is blast-finished and has an incident angle of 45
° and a light receiving angle of 45 °, the surface of a titanium material or a titanium alloy material having a specular glossiness of 50% or less (hereinafter referred to as Gs (45 °)) and an Rmax of 6 μm or more, has an L * (brightness) of 45%.
An anodized color-forming titanium material or a color-forming titanium alloy material having an interference film having a C * (chroma) of 5 or more and 35 or less and having a high brightness and a low color tone.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06183781A JP3117876B2 (en) | 1994-08-04 | 1994-08-04 | Colored titanium material or colored titanium alloy material by anodic oxidation with high lightness and low chroma color tone |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP06183781A JP3117876B2 (en) | 1994-08-04 | 1994-08-04 | Colored titanium material or colored titanium alloy material by anodic oxidation with high lightness and low chroma color tone |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0849095A JPH0849095A (en) | 1996-02-20 |
| JP3117876B2 true JP3117876B2 (en) | 2000-12-18 |
Family
ID=16141833
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP06183781A Expired - Lifetime JP3117876B2 (en) | 1994-08-04 | 1994-08-04 | Colored titanium material or colored titanium alloy material by anodic oxidation with high lightness and low chroma color tone |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3117876B2 (en) |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP5604064B2 (en) * | 2009-07-15 | 2014-10-08 | 新日鐵住金株式会社 | Color titanium products that have low fingerprints and are highly resistant to scratches |
| CN112292484B (en) * | 2018-06-18 | 2023-05-12 | 日本制铁株式会社 | Titanium material |
| JP2024054803A (en) * | 2022-10-05 | 2024-04-17 | 三恵技研工業株式会社 | Exterior component and manufacturing method thereof |
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1994
- 1994-08-04 JP JP06183781A patent/JP3117876B2/en not_active Expired - Lifetime
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