JPH0577758B2 - - Google Patents
Info
- Publication number
- JPH0577758B2 JPH0577758B2 JP3492090A JP3492090A JPH0577758B2 JP H0577758 B2 JPH0577758 B2 JP H0577758B2 JP 3492090 A JP3492090 A JP 3492090A JP 3492090 A JP3492090 A JP 3492090A JP H0577758 B2 JPH0577758 B2 JP H0577758B2
- Authority
- JP
- Japan
- Prior art keywords
- color tone
- colored film
- colored
- film
- titanium
- 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 - Lifetime
Links
- RTAQQCXQSZGOHL-UHFFFAOYSA-N Titanium Chemical compound [Ti] RTAQQCXQSZGOHL-UHFFFAOYSA-N 0.000 claims description 19
- 239000010936 titanium Substances 0.000 claims description 19
- 229910052719 titanium Inorganic materials 0.000 claims description 19
- 239000000463 material Substances 0.000 claims description 9
- 238000004040 coloring Methods 0.000 claims description 8
- 238000000034 method Methods 0.000 claims description 7
- 238000005868 electrolysis reaction Methods 0.000 claims description 4
- 229910001069 Ti alloy Inorganic materials 0.000 claims description 3
- 230000003647 oxidation Effects 0.000 claims description 2
- 238000007254 oxidation reaction Methods 0.000 claims description 2
- 238000007743 anodising Methods 0.000 description 12
- NBIIXXVUZAFLBC-UHFFFAOYSA-N Phosphoric acid Chemical compound OP(O)(O)=O NBIIXXVUZAFLBC-UHFFFAOYSA-N 0.000 description 8
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 229910000147 aluminium phosphate Inorganic materials 0.000 description 4
- MHAJPDPJQMAIIY-UHFFFAOYSA-N Hydrogen peroxide Chemical compound OO MHAJPDPJQMAIIY-UHFFFAOYSA-N 0.000 description 3
- 239000002699 waste material Substances 0.000 description 3
- GWEVSGVZZGPLCZ-UHFFFAOYSA-N Titan oxide Chemical compound O=[Ti]=O GWEVSGVZZGPLCZ-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 2
- 238000002048 anodisation reaction Methods 0.000 description 1
- 239000004566 building material Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
Landscapes
- Inorganic Compounds Of Heavy Metals (AREA)
- Other Surface Treatments For Metallic Materials (AREA)
Description
【発明の詳細な説明】
（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着色チ
タン材の着色制御方法に関する。DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Application) The present invention relates to a method for controlling the coloring of colored titanium materials used for building materials, decorative items, and the like.
（従来の技術）
一般に、着色チタン材は、リン酸や硫酸又はこ
れらの混合浴中などにおいて、チタン又はチタン
合金（以下チタンなどと略称する）を陽極酸化処
理して、酸化チタン成分から成る着色皮膜を生成
することにより製造される。(Prior art) Colored titanium materials are generally produced by anodizing titanium or titanium alloys (hereinafter referred to as titanium, etc.) in a bath of phosphoric acid, sulfuric acid, or a mixture thereof. Manufactured by forming a film.
（発明が解決しようとする課題）
所で、以上のようにして得られる着色皮膜は、
その色調の制御が工業的に極めて困難である。第
１図は実験の結果得たものであり、該図について
は後で詳述する。しかして、同図で明らかなよう
に、陽極酸化処理時にチタンなどに付与される電
極に基づく着色皮膜の膜厚変化により、その色調
が大幅に変化し、例えば同図のイ点を目標色調と
して着色皮膜を生成するとき、工場規模で実施す
る場合には、材料の種類、形状や処理面積及び前
処理条件などが原因となつて、前記目標色調を生
成できない場合が多く、ややもすると、目標色調
から低、高電圧側にずれたロ点やロ点やハ点の色
調が得られたりするのであり、この低電圧側にず
れたロ点の色調が得られた場合には、やや高い電
圧で再度陽極酸化処理を行つて目標色調を得るよ
うにすれば修正可能であるが、一方、高電圧側に
ずれたハ点の色調が得られた場合には、例え低い
電圧で再度陽極酸化処理を行つても色調の変化が
起こらないことから、廃材などとして廃棄処分す
るしか方法がなかつたのである。(Problem to be solved by the invention) However, the colored film obtained in the above manner is
Controlling the color tone is industrially extremely difficult. FIG. 1 is the result of an experiment, and will be described in detail later. However, as is clear from the figure, due to changes in the thickness of the colored film based on the electrode applied to titanium etc. during anodizing treatment, the color tone changes significantly. When producing a colored film on a factory scale, it is often impossible to produce the target color tone due to the type of material, shape, treatment area, pretreatment conditions, etc. If the color tone of point B or point B or C is shifted toward the low or high voltage side, the color tone of point B or C may be obtained. This can be corrected by performing anodizing again to obtain the target color tone, but on the other hand, if the color tone of point C that is shifted toward the high voltage side is obtained, it may be necessary to perform anodizing again at a lower voltage. Since the color tone did not change even after doing this, the only option was to dispose of it as waste material.
本発明は以上のような問題に鑑みてなしたもの
で、その目的は、着色皮膜の生成時に目標色調か
ら高電圧側にずれた色調が得られた場合でも、廃
材などとして廃棄処分したりすることなく、この
ずれた色調を目標色調に簡単に修正できる着色チ
タン材の着色制後方法を提供することにある。 The present invention was made in view of the above-mentioned problems, and its purpose is to dispose of it as waste material even if a color tone that deviates from the target color tone toward the high voltage side is obtained during the production of a colored film. To provide a post-coloring method for a colored titanium material that can easily correct this shifted color tone to a target color tone without causing any problems.
（課題を解決するための手段）
上記目的を達成するために、本発明の着色チタ
ン材の着色制御方法では、チタン又はチタン合金
を陽極酸化処理して着色皮膜を生成した後に、陰
極電解処理を施して、前記着色皮膜の色調を制御
するようにしたものである。(Means for Solving the Problems) In order to achieve the above object, in the method for controlling coloring of a colored titanium material of the present invention, titanium or a titanium alloy is anodized to form a colored film, and then a cathodic electrolytic treatment is performed. The color tone of the colored film is controlled by applying the coloring film.
また、前記着色皮膜は、オングストローム単位
の干渉膜であることが望ましい。 Further, it is preferable that the colored film is an angstrom-sized interference film.
（作用）
陽極酸化処理による着色皮膜の生成時に、目標
色調から高電圧側にずれた色調が得られたとき、
前記着色皮膜を陽極電解処理することにより、該
着色皮膜つまり酸化チタン成分が還元されてより
薄い膜となり、目標色調に簡単に修正される。(Function) When a color tone deviates from the target color tone toward the high voltage side during the generation of a colored film by anodizing treatment,
By subjecting the colored film to anodic electrolysis treatment, the colored film, that is, the titanium oxide component, is reduced and becomes a thinner film, which can be easily corrected to the target color tone.
また、前記着色皮膜をオングストローム単位の
干渉膜とするときには、前記陰極電解処理による
色調の修正が極めて簡単に行われる。 Furthermore, when the colored film is an angstrom-sized interference film, the color tone can be modified very easily by the cathodic electrolytic treatment.
（実施例）
以下本発明にかかる着色チタン材の着色制御方
法を具体的に説明する。(Example) A method for controlling coloring of a colored titanium material according to the present invention will be specifically described below.
先ず、第１図は、2.5％のリン酸と3.5％の硫酸
及び１％の過酸化水素水から成る電解浴を調整
し、この電解浴中に純チタン板を浸漬して、直流
電圧０〜142Vの範囲で変化させて陽極酸化処理
して得られた着色皮膜のハンターダイヤグラム
（Lab表色系）を示している。尚、該図では、ａ
軸の右側を赤色領域、同左側を緑色領域、また、
ｂ側の上部側を黄色領域、同下部側を青色領域と
なし、前記赤色領域と黄色領域とで囲まれる範囲
を柿色領域、前記黄色領域と緑色領域とで囲まれ
る範囲を黄緑色領域、前記緑色領域とを青色領域
とで囲まれる範囲を青緑色領域、前記青色領域と
赤色領域とで囲まれる範囲を紫色領域としてい
る。また、以上のように、電圧０〜142Vの範囲
で変化させて陽極酸化処理することにより、膜厚
約500〜7500オングストロール程度の着色皮膜が
生成され、斯かる電圧変化に基づく着色皮膜の膜
厚状態によつて、同図の曲線で示したように、着
色皮膜の色調が各種色調にわたつて大幅に変化す
るのである。 First, in Figure 1, an electrolytic bath consisting of 2.5% phosphoric acid, 3.5% sulfuric acid, and 1% hydrogen peroxide is prepared, a pure titanium plate is immersed in this electrolytic bath, and a DC voltage of 0 to This shows a Hunter diagram (Lab color system) of a colored film obtained by anodizing at varying voltages of 142V. In addition, in the figure, a
The right side of the axis is the red area, the left side is the green area, and
The upper side of side b is a yellow area, the lower side is a blue area, the area surrounded by the red area and the yellow area is a persimmon-colored area, the area surrounded by the yellow area and the green area is a yellow-green area, and the area surrounded by the yellow area and the green area is a yellow-green area. The area surrounded by the green area and the blue area is defined as a bluish-green area, and the area surrounded by the blue area and the red area is defined as a violet area. In addition, as described above, a colored film with a film thickness of about 500 to 7500 angstroms is produced by anodizing treatment while changing the voltage in the range of 0 to 142 V, and the thickness of the colored film based on such voltage changes is As shown by the curve in the same figure, the color tone of the colored film changes significantly depending on the thickness of the film.
しかして、以上の図から明らかなように、例え
ば黄緑色系の着色皮膜を生成する場合で、同図の
イ点を目標色調として着色皮膜を生成するとき、
低電圧側つまり緑色領域側にずれたロ点の色調が
得られた場合には、約90V程度の電圧で再度陽極
酸化処理を行うことにより、目標色調イ点を得る
ことが可能である。一方、高電圧側つまり黄色領
域側にずれたハ点の色調が得られた場合には、次
のような陰極電解処理を行うのである。 As is clear from the above figure, when producing a yellow-green colored film, for example, when the colored film is produced with point A in the figure as the target color tone,
If a color tone of point B shifted toward the low voltage side, that is, the green region side is obtained, it is possible to obtain the target color tone of point A by performing the anodization treatment again at a voltage of about 90V. On the other hand, if the color tone of point C shifted toward the high voltage side, that is, toward the yellow region, is obtained, the following cathodic electrolytic treatment is performed.
即ち、前記目標色調イ点からずれた着色皮膜ハ
点を、0.1〜20A／ｄm2、好ましくは１〜4A／ｄ
m2程度の電流密度で、0.5〜60分間、好ましくは
１〜10分間にわたつて陰極電解処理し、前記着色
皮膜の酸化チタン成分を還元して、この着色皮膜
をより薄い膜とすることにより、前記ハ点を目標
色調イ点に修正するのである。 That is, the colored film point C, which is deviated from the target color tone A point, is heated at a rate of 0.1 to 20 A/dm 2 , preferably 1 to 4 A/d.
By cathodic electrolysis treatment at a current density of about m 2 for 0.5 to 60 minutes, preferably 1 to 10 minutes, the titanium oxide component of the colored film is reduced and the colored film is made into a thinner film. , the point C is corrected to the target color tone point A.
前記陰極電解処理を起う場合の電流密度と処理
時間とは、互いに反比例するものであり、例えば
高電流密度を利用する場合には、着色皮膜の色調
修正が短時間ででき、また、低電流密度を使用す
る場合には、着色皮膜の色調修正に長時間を必要
とするものある。 The current density and treatment time when performing the cathodic electrolytic treatment are inversely proportional to each other. For example, when using a high current density, the color tone of the colored film can be corrected in a short time; When density is used, it may take a long time to correct the color tone of the colored film.
また、以上のような陰極電解処理は、陽極酸化
処理を行う場合と同一の電解浴を用い、前記着色
皮膜に付与する電圧を正側から負側に切換えて行
うことが望ましく、斯くするときには、電圧を切
換えるだけで前記着色皮膜の色調を修正すること
が可能となつて、設備費が安価となるのである。
尚、本発明では、陰極電解処理と陽極酸化処理作
業とを同一の電解浴で行うことを限定するもので
はなく、これら各作業はそれぞれ別の電解浴で行
うことも可能である。 Further, it is desirable that the cathodic electrolytic treatment as described above be performed using the same electrolytic bath as in the case of anodizing treatment, and by switching the voltage applied to the colored film from the positive side to the negative side. It becomes possible to modify the color tone of the colored film simply by switching the voltage, and equipment costs are reduced.
Note that the present invention does not limit the cathodic electrolytic treatment and the anodic oxidation treatment to be performed in the same electrolytic bath, and these operations may be performed in separate electrolytic baths.
次に、具体例１〜３を挙げて説明する。尚、具
体例１は第１図で、また、具体例２，３について
は、第２、第３図に基づいて説明する。 Next, specific examples 1 to 3 will be described. Note that specific example 1 will be explained based on FIG. 1, and specific examples 2 and 3 will be explained based on FIGS. 2 and 3.
具体例 １
純チタン板を、2.5重量％のリン酸と3.5重量％
の硫酸及び１重量％の過酸化水素水とから成る電
解浴中において、電解電圧95Vで陽極酸化処理
し、第１図ハ点に示す黄緑色の着色皮膜を得た後
に、同浴中において、この黄緑色の着色皮膜を
3A／ｄm2の電流密度で５分間にわたつて陰極電
解した結果、同図イ点に示したやや緑味のある黄
緑色の着色皮膜に修正され、この色はハ点よりも
低電圧側の色調である。Specific example 1 A pure titanium plate was mixed with 2.5% by weight of phosphoric acid and 3.5% by weight.
After anodizing at an electrolytic voltage of 95 V in an electrolytic bath consisting of sulfuric acid and 1% by weight hydrogen peroxide solution to obtain a yellow-green colored film shown at point C in Figure 1, This yellow-green colored film
As a result of cathodic electrolysis at a current density of 3 A/dm 2 for 5 minutes, a slightly greenish yellowish-green colored film was formed as shown at point A in the figure, and this color was on the lower voltage side than point C. It's the tone.
具体例 ２
純チタン板を、３重量％のリン酸から成る電解
浴中において、電解電圧20Vで陽極酸化処理し
て、第２図におけるａ軸上の１５と、ｂ軸上の７
とに位置される橙色の着色皮膜を得た後に、同浴
中において、この橙色の着色皮膜を3A／ｄm2の
電流密度で３分間にわたつて陰極電解した結果、
同図ａ軸上の７とｂ軸上１０とに位置される黄橙
色の着色皮膜に修正され、この色は、より低電圧
側で陽極酸化した場合に得られる色調である。Specific Example 2 A pure titanium plate was anodized in an electrolytic bath containing 3% by weight of phosphoric acid at an electrolytic voltage of 20 V, and 15 on the a-axis and 7 on the b-axis in Fig. 2 were anodized.
After obtaining an orange colored film located at
It has been corrected to a yellow-orange colored film located at 7 on the a-axis and 10 on the b-axis in the same figure, and this color is the tone obtained when anodizing is performed on the lower voltage side.
具体例 ３
純チタン板を、２重量％の硫酸から成る電解浴
中において、電解電圧55Vで陽極酸化処理し、第
３図におけるａ軸上の４０と、ｂ軸上の−50とに
位置される紫色の着色皮膜を得た後に、同浴中に
おいて、この紫色の着色皮膜を1A／ｄm2の電流
密度で15分間にわたつて陰極電解した結果、同図
ａ軸上の30とｂ軸上の−20とに位置される赤紫色
の着色皮膜に修正され、この色は、電解電圧40V
付近で陽極酸化した場合に得られる色調である。Specific Example 3 A pure titanium plate was anodized at an electrolytic voltage of 55 V in an electrolytic bath containing 2% by weight of sulfuric acid, and the titanium plate was anodized at 40 on the a-axis and at -50 on the b-axis in Fig. 3. After obtaining a purple colored film, the purple colored film was cathodically electrolyzed in the same bath at a current density of 1 A/dm 2 for 15 minutes. -20 and is modified to a reddish-purple colored film located at
This is the color tone obtained when anodizing is performed nearby.
（発明の効果）
以上説明したように、本発明にかかる着色チタ
ン材の着色制御方法では、チタンなどを陽極酸化
処理して着色皮膜を生成した後に、陰極電解処理
を施して、前記着色皮膜の色調を制御するように
したから、陽極酸化処理による着色皮膜の生成時
に、目標色調から高電圧側にずれた色調が得られ
た場合でも、従来のように、廃材などどして廃棄
処分したりすることなく、このずれた色調を目標
色調に簡単に修正できるに至つたのである。(Effects of the Invention) As explained above, in the method for controlling the coloring of a colored titanium material according to the present invention, titanium or the like is anodized to form a colored film, and then a cathodic electrolytic treatment is performed to form a colored film. Since the color tone is controlled, even if a color tone that deviates from the target color tone toward the high voltage side is obtained during the generation of a colored film through anodizing treatment, it is no longer necessary to dispose of it as waste material, as in the past. It was now possible to easily correct this shifted color tone to the target color tone without having to do anything.
また、前記着色皮膜をオングストローム単位の
干渉膜とすることにより、前記陰極電解処理によ
る色調の修正を極めて簡単に行い得るのである。 Further, by forming the colored film as an angstrom-sized interference film, the color tone can be extremely easily corrected by the cathodic electrolytic treatment.
第１図は本発明を説明するハンターダイヤグラ
ム（Lab表色系）、第２図及び第３図はそれぞれ
他の具体例を説明する図面である。
FIG. 1 is a Hunter diagram (Lab color system) for explaining the present invention, and FIGS. 2 and 3 are drawings for explaining other specific examples.
Claims (1)
色皮膜を生成した後に、陰極電解処理を施して、
前記着色皮膜の色調を制御することを特徴とする
着色チタン材の着色制御方法。 ２ 着色皮膜がオングストローム単位の干渉膜で
あることを特徴とする請求項１記載の着色チタン
材の着色制御方法。[Claims] 1. After anodic oxidation treatment of titanium or titanium alloy to produce a colored film, cathodic electrolysis treatment is performed,
A method for controlling coloring of a colored titanium material, comprising controlling the color tone of the colored film. 2. The method of controlling coloring of a colored titanium material according to claim 1, wherein the colored film is an angstrom unit interference film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3492090A JPH03240997A (en) | 1990-02-15 | 1990-02-15 | Method for controlling color of colored titanium material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3492090A JPH03240997A (en) | 1990-02-15 | 1990-02-15 | Method for controlling color of colored titanium material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03240997A JPH03240997A (en) | 1991-10-28 |
| JPH0577758B2 true JPH0577758B2 (en) | 1993-10-27 |
Family
ID=12427651
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3492090A Granted JPH03240997A (en) | 1990-02-15 | 1990-02-15 | Method for controlling color of colored titanium material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03240997A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US11032930B2 (en) * | 2019-05-28 | 2021-06-08 | Apple Inc. | Titanium surfaces with improved color consistency and resistance to color change |
-
1990
- 1990-02-15 JP JP3492090A patent/JPH03240997A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03240997A (en) | 1991-10-28 |
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