JPS58164799A - Electrical transferring method of pattern on metal - Google Patents

Abstract

PURPOSE:To obtain transferred patterns which are sharp over the entire part in an electrical coloring method of patterns, by using plate electrodes of the construction that permits compensation of voltage drop in patterned electrodes. CONSTITUTION:A plate electrode 4 is constituted by adhering patterned electrodes 4a and a current conducting surface 4b consisting of copper foil on the top and bottom surfaces of an insulating plate 4c. The electrodes 4a are constituted like slender strips from the beginning end 9 thereof toward the final end 10, and are provided with power feed parts 8, 8... at proper intervals from the end 9 to the end 10. The parts 8 are constituted of through-hole platings provided through the plate 4c so as to connect the electrodes 4a and the surface 4b. If such electrode 4 is used, the voltage drop of the electrodes 4a is compensated because the surface 4b has sufficiently small resistance, thus the voltage in the respective parts 8 are made approximately uniform, and the transferred patterns having the same and high sharpness from the end 9 to the end 10 are obtained.

Description

【発明の詳細な説明】 本発明は、アルミニウム郷の電気化学的方法で着色可能
な金属材の表面に任意の模様の着色皮膜を形成する方法
に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for forming a colored film in an arbitrary pattern on the surface of a metal material that can be colored by an aluminum electrochemical method.

本発明者らは、既Ｋｊｌ願昭ｊｊ−／ざ１０３７号とし
て、第１図図示の如き装置を使用して、電解液２の存在
下において、電気化学的方法によシ着色可能な金属材か
らなる被転写体３と所望の模様状の不均一な電気抵抗分
布を有する版電極弘とを近接対置させて電解処理し、前
記被転写体３表面に両者間に流れる電流分布に対応する
模様を形成するようにした金属に対する電気的模様着色
方法を提案している。なお、第１図において符号ｌは電
解槽、ｊは絹布等の絶縁体、６は重錘、７は電源をそれ
ぞれ示している。The present inventors have disclosed, in Kjl Application No. 1037, a metal material that can be colored by an electrochemical method in the presence of an electrolytic solution 2 using an apparatus as shown in FIG. A transfer target 3 consisting of a plate electrode having a non-uniform electrical resistance distribution in a desired pattern are placed close to each other and subjected to electrolytic treatment to form a pattern corresponding to the current distribution flowing between the two on the surface of the transfer target 3. We have proposed an electrical pattern coloring method for metals that forms . In FIG. 1, reference numeral 1 indicates an electrolytic cell, j indicates an insulator such as silk cloth, 6 indicates a weight, and 7 indicates a power source.

ところが、このような方法において、版電極グとして模
様状の不均一な電気抵抗分布を現出せしめるために、プ
リント基板上に模様状電極≠αを形成したものを採用す
る場合には、第２図のグラフに示すように、模様状電極
１１ａの給電部♂からの距離２が遠くなるに従って転写
模様の鮮明度Ｖが低下するという問題が生じる。この鮮
明度νの低下は指数関数的なものであシ、距離ｇ＝２Ｑ
ａ以上（４Ｍシ、模様状電極４を番の巾が約７劇の場合
）ではほは一定となる。However, in such a method, when a patterned electrode ≠ α is formed on a printed circuit board in order to produce a patterned non-uniform electrical resistance distribution as a plate electrode, the second As shown in the graph of the figure, a problem arises in that the sharpness V of the transferred pattern decreases as the distance 2 from the power supply part ♂ of the patterned electrode 11a increases. This decrease in visibility ν is exponential, and the distance g=2Q
Above a (4M, when the patterned electrode 4 has a width of about 7 lines), the value becomes constant.

この鮮明度νの低下の原因を解明するために模様状電極
弘αの電気回路を第３図図示のようなものと考えてみる
。ここＫｒｌ’ｉ模様状電＠１Ｉａ０各部分の抵抗、Ｒ
ｔｊ模様状電極１１ａと被転写体３と九めに各点の電圧
Ｖを計算すると、 Ｖｓ＝　ｉｓ　Ｒａ ｖｍ＝　ｖｓ　＋　ｉｓｒ塾　　　　　　　＝　イーＲ
３Ｖｉ＝　Ｖｍ　＋　（ｉｓ　十ｉｓ　）　ｒｍ＝　１
ｓＲａ現われる量はすべて正の値であるところから、Ｖ
、＞Ｖ、＞Ｖ、となる。In order to elucidate the cause of this decrease in sharpness ν, let us consider the electric circuit of the patterned electrodes α as shown in FIG. Here, the resistance of each part of Krl'i patterned electric @1Ia0, R
Calculating the voltage V at each point between the patterned electrode 11a and the transferred object 3, we get: Vs=isRa vm=VS+ISR=ER
3Vi= Vm + (is ten is) rm= 1
Since all the quantities appearing in sRa are positive values, V
, >V, >V.

即ち、第μ図のグラフに示すように、模様状電極４Ｌａ
の給電部ｔからの距離２が大きくなるに従って電圧Ｖが
降下するととに起因して鮮Ｉｊ１変１の低下が生ずると
結論できる。実際の１路では点の数は無限であるが、全
く雫様な結論となる。That is, as shown in the graph of Fig. μ, the patterned electrode 4La
It can be concluded that as the distance 2 from the power supply section t increases, the voltage V decreases, resulting in a decrease in the voltage Ij1. In reality, the number of points is infinite in one path, but the conclusion is completely drop-like.

本発ＩｊＩ＃ｉ、上記の結論に１ｆＩｉみ、模様状電ｍ
における電圧降下を補償し得意！造の版電極を使用して
、全体的に鮮明な転写模様を得るようにすることを目的
とする屯のである。The original IjI #i, 1fIi in the above conclusion, patterned electric m
Good at compensating for voltage drops! The purpose of this technique is to use a manufactured plate electrode to obtain a clear overall transfer pattern.

方 本発明末法は、電解液存在下において、電気化学的方法
によ多着色可能な金属材からなる被転写体と、通電部と
なる模様状電極の始端から終端に至る間にその間の電圧
降下を補償すべく給電部を設けてなる版電極とを近接対
置させ、両者間に通電せしめて、前記被転写体表＊に前
記模様状電極に対応する転写模様を形成することを特徴
としている。The final method of the present invention is to reduce the voltage drop between a transfer target made of a metal material that can be multi-colored by an electrochemical method and a patterned electrode serving as a current-carrying part from the start to the end in the presence of an electrolyte. In order to compensate for this, a plate electrode provided with a power supply section is placed in close opposition to each other, and electricity is applied between the two to form a transferred pattern corresponding to the patterned electrode on the surface of the transferred object*.

本発明方法に使用される装置例としては、第１図図示の
装置が採用され得るが、版電極弘としては、第５図およ
び第６図に示すように両面プリント基板からなるものが
採用される。As an example of the device used in the method of the present invention, the device shown in FIG. 1 may be adopted, but as the plate electrode plate, one consisting of a double-sided printed circuit board as shown in FIGS. 5 and 6 may be adopted. Ru.

この版電極μは、絶縁板１１．ｃの上下面に銅箔からな
る模様状電極μＧと通電面≠ｂとを貼着して構成されて
いる。This version electrode μ is connected to the insulating plate 11. It is constructed by pasting a patterned electrode μG made of copper foil and a current-carrying surface≠b on the upper and lower surfaces of c.

前記模様状電極弘ａＦｉ、その始端りから終端ＩＯ＼ に向かって細長ｒ帯状に構成されておシ、始端りから終
端／θにかワて適宜間隔で複数の給電部ざ、ざ・・が設
けられている。皺各給電部ざは、模様状電極≠（と通電
面弘すとを連結すべく絶縁板≠Ｃを貫通して設けられた
スルーホールメッキによって構成されている。The patterned electrode aFi is configured in an elongated strip shape from its starting end to its terminal end IO, and there are a plurality of power feeding portions at appropriate intervals from its starting end to its terminal end IO. It is provided. Each wrinkled power supply portion is formed by through-hole plating provided through the insulating plate≠C to connect the patterned electrode≠(and the current-carrying surface).

このような版電極ｌを使用すると、通電＊４！＆の抵抗
デ、が十分小さい丸め模様状電極４４ａの電圧降下が補
償されることとなシ、各給電部ｔ、ｔ・・における電圧
をほは均一にする仁とが可能となる（第７図参照）。If you use such a plate electrode l, it will conduct electricity *4! The voltage drop of the round pattern electrode 44a is compensated for when the resistance d is sufficiently small, and it becomes possible to make the voltages at each power supply part t, t, etc. almost uniform (7th (see figure).

なお、給電部ｒ、を間の距離は、なるべく短い方が良い
が、あまシ密にするとデザインに制約を与えるので、約
／θａＸ＠度とすれば十分である。Note that it is better that the distance between the power feeding parts r is as short as possible, but if the distance is made too dense, it will impose constraints on the design, so it is sufficient to set it to about /θaX@degree.

又、前記通電面４ｔｈを同一抵抗値を有する各給電部ｒ
％ｇ−・に至る独立の配線パターンとすることもできる
。In addition, the current-carrying surface 4th is connected to each power feeding part r having the same resistance value.
It is also possible to provide independent wiring patterns up to %g-.

次に本発明の具体的実施例について説明する。Next, specific examples of the present invention will be described.

実施例 Ｖ）　電解液　　ｊＯＶｌの硫酸ニッケル水溶液（コＯ
Ｃ＞ Ｑ）　被転写体　　常法によシ陽極酸化皮膜を形成し九
アルミニウム板 Ｑ）　版電極　　第５図および第６図図示の両面プリン
ト基板からなる複数 給電部を有するもの に）絶縁体　　シルクスクリーン用シルク（イ）重錘重
量　　／　ｋｇ／ｄが （υ　通電条件　　３０Ｖ交流電圧をλ秒間印加上記条
件で電解処理を施し九ところ、模様状電極１１ａの始端
りから終端ＩＯに対応する転写模様がほは同一の高い鮮
明度で得られ友。Example V) Electrolyte solution jOVl nickel sulfate aqueous solution (coO
C> Q) Transfer target: Aluminum plate on which an anodized film is formed by a conventional method Q) Plate electrode: One having multiple power supply parts consisting of a double-sided printed circuit board as shown in Figures 5 and 6) Insulator: Silk Silk for screen (a) Weight of weight / kg/d is (υ) Current conditions: 30V AC voltage applied for λ seconds Electrolytic treatment was performed under the above conditions, and a transferred pattern corresponding to the starting edge to the terminal IO of the patterned electrode 11a was formed. The result is the same high clarity.

上記転写工程により得九転写模様を有する被転写体を、
前記と同様の電解液中においてグラファイトを対極とし
て更に電解処理を施すと、濃淡、色調が変化して一属意
匠感の向上し九ものとなった。A transferred object having a nine-transfer pattern obtained through the above transfer process,
When further electrolytic treatment was performed using graphite as a counter electrode in the same electrolytic solution as above, the shading and color tone changed and the design feeling improved.

以上述べてきた如く、本発明方法によれば、版電極の通
電部となる模様状電極における電圧降下が補償されるこ
ととなシ、転写模様の始端から終端に至る迄同−の高い
鮮明度を有するものを得ることができるという優れ九効
呆がある。As described above, according to the method of the present invention, the voltage drop in the patterned electrode, which is the current-carrying part of the plate electrode, is compensated for, and the same high definition is maintained from the starting edge to the ending edge of the transferred pattern. There is an excellent nine effect that you can get one with.

【図面の簡単な説明】[Brief explanation of drawings]

第１図は特願昭５ｓ−ｉｔｉｏ３’ｙ号に示す方法に使
用される装置例の断面図、第２図は第１図の装置例によ
って得られた転写模様において、給電部からの距離ｚＫ
対する鮮明１１ｙの変化を示すグラフ、第３図は第１図
の装置例に使用され丸板電極の電気目略図、第ｖ図は第
３図の電気回路に対応する給電部からの距離ｚＫ対する
電圧Ｖの変化を示すグラフ、第５図は本発明方法に使用
される装置の版電極の平面図、第６図は第５図の版電極
の部分断面図、第７図は第！図の版電極の部分電気閏略
図である。 λ　・・・電解液 ３　　・・・　被転写体 グ　自・版電極 ４ｔα　・・・　模様状電極 ざ　・・・給電部 タ　　・・・　模様状電極始端 １０　　・・・　模様状電極終電 で 第４回FIG. 1 is a cross-sectional view of an example of an apparatus used in the method shown in Japanese Patent Application No. 5S-ITIO 3'Y, and FIG. 2 is a transfer pattern obtained by the example of the apparatus shown in FIG.
Figure 3 is a schematic diagram of the electrical diagram of the round plate electrode used in the device example shown in Figure 1, and Figure v is a graph showing the change in sharpness 11y with respect to the electric circuit shown in Figure 3. A graph showing changes in voltage V, FIG. 5 is a plan view of the plate electrode of the apparatus used in the method of the present invention, FIG. 6 is a partial cross-sectional view of the plate electrode of FIG. 5, and FIG. 7 is the! FIG. 3 is a partial electrical schematic diagram of the plate electrode shown in the figure. λ...Electrolyte 3...Transferred object G Self/plate electrode 4tα...Patterned electrode Z...Power supply part...Patterned electrode starting end 10...Fourth patterned electrode final electrode times

Claims (1)

【特許請求の範囲】[Claims] ｆ　電解液存在下において、電気化学的方法によ降下を
補償すべく給電部を設けてなる版電極とを近接対置させ
、両者間に通電せしめて、前記被転写体表ｉ［Ｋ前記模
様状電極に対応する転写模様を形成することを特徴とす
る金属に対する電気的模様転写方法。f In the presence of an electrolytic solution, a plate electrode provided with a power supply part to compensate for drop by an electrochemical method is placed close to the plate electrode, and a current is applied between them, so that the surface of the transferred object i [K An electrical pattern transfer method for metal, characterized by forming a transfer pattern corresponding to an electrode.