JP5053525B2 - Pattern formation method - Google Patents

Pattern formation method Download PDF

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JP5053525B2
JP5053525B2 JP2005219152A JP2005219152A JP5053525B2 JP 5053525 B2 JP5053525 B2 JP 5053525B2 JP 2005219152 A JP2005219152 A JP 2005219152A JP 2005219152 A JP2005219152 A JP 2005219152A JP 5053525 B2 JP5053525 B2 JP 5053525B2
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pattern
pigment
medium
magnetic
magnetic field
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JP2007029894A (en
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拓 小山
泰司 渕田
敦 高橋
清志 北原
恒久 木村
正文 山登
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Kyodo Printing Co Ltd
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Description

本発明は、基材に顔料を含む塗料を塗布した媒体へのパターン形成方に関する。 The present invention relates to patterning how to medium coated with paint containing pigment to the substrate.

従来、基材に顔料を含む塗料を塗布して意匠性を有する意匠性媒体を形成する方法として、下塗り及び/又は中塗り塗膜を直接着磁して磁化させて磁石を形成することにより、被塗物の材料や形状等に左右されることなく、様々な模様を塗膜上に現出させることができる「模様塗膜形成方法」(例えば、特許文献1参照)、塗膜に分散している磁性粉末を磁力によって配向・移動させることにより、意匠性及び識別性に優れた模様を付けることができる「模様付き塗装金属板の製造方法」(例えば、特許文献2参照)、入射光を分散させて出射する光分散層の光出射側に、磁性を有する光輝性顔料を磁場印加により配向させて含有する樹脂層を設けることにより、観察方向によって異なる模様を表すことができる「意匠性フィルム」(例えば、特許文献3参照)、等が開示されている。
特開平6−114332号公報 特開平8−38992号公報 特開平9−94529号公報
Conventionally, as a method of forming a designable medium having a design property by applying a paint containing a pigment to a base material, by directly magnetizing and magnetizing an undercoat and / or an intermediate coat film, A “pattern coating method” (see, for example, Patent Document 1), which allows various patterns to appear on the coating film, regardless of the material or shape of the object to be coated, is dispersed in the coating film. By aligning and moving the magnetic powder that is applied by magnetic force, a “patterned coated metal plate manufacturing method” (for example, see Patent Document 2), which can give a pattern with excellent design and discrimination, By providing a resin layer containing a magnetic luster pigment oriented by applying a magnetic field on the light exit side of the light dispersion layer that is dispersed and emitted, a “designable film” that can represent different patterns depending on the observation direction (E.g. Patent Document 3), etc. are disclosed.
JP-A-6-114332 JP-A-8-38992 JP-A-9-94529

上述した従来技術では、強磁性を持つ光輝性顔料を用いることにより顔料の配向を制御している。この強磁性を持つ光輝性顔料は、鱗片状、針状の強磁性材料単独や、それらに二酸化チタンや酸化鉄を被覆したもの、マイカ・シリカ・アルミナなどに磁化鉄やニッケル(Ni)等の強磁性体を被覆したものが挙げられる。しかしながら、これらのいずれも強磁性体全般に適用できるものではないので、従来技術における方法は限定的であり、輝度の変化のみしか実現されず、バリエーションに富んだ意匠性の実現は困難である。   In the prior art described above, the orientation of the pigment is controlled by using a bright pigment having ferromagnetism. The brilliant pigments having ferromagnetism are flaky and acicular ferromagnetic materials alone, those coated with titanium dioxide or iron oxide, mica, silica, alumina, etc., magnetized iron, nickel (Ni), etc. Examples include those coated with a ferromagnetic material. However, since none of these methods can be applied to all ferromagnetic materials, the methods in the prior art are limited, and only a change in luminance is realized, and it is difficult to realize design characteristics rich in variations.

一方、従来の磁場配向方法では、マイカ・シリカ・アルミナ等の非強磁性体材料を主成分とし、質量磁化率が10-63/kg(SIunit)以下の磁気異方性を有する顔料を動かすことができなかったため、これらの顔料を配向させパターンを形成することができなかった。 On the other hand, in the conventional magnetic field orientation method, a pigment having a magnetic anisotropy having a mass magnetic susceptibility of 10 −6 m 3 / kg (SIunit) or less, mainly composed of a non-ferromagnetic material such as mica, silica, or alumina. Because they could not be moved, these pigments could not be oriented to form a pattern.

本発明は、上記事情に鑑みてなされたものであり、強磁性体以外の顔料の配向制御を行うことにより、従来では不可能であった、同一塗膜面上でのパターン形成方法を提供することを目的とする。 The present invention has been made in view of the above circumstances, provided by performing the orientation control of the pigment other than ferromagnetic, conventionally was not possible, the patterning how on the same coated surface The purpose is to do.

上記課題を解決するため、請求項1記載の発明は、基材に顔料を含む塗料を塗布した媒体のパターン部に該パターン部の周辺とは異なる顔料の配向を生じさせることでパターンを形成するパターン形成方法であって、前記顔料として強磁場環境にて配向が変化する顔料と強磁場環境にて配向が変化しない顔料とを混合した塗料を用い、前記配向が、強磁性体もしくは強磁性体を含んだ塗料によって形成された磁性部材を前記媒体に隣接させたものに0.3テスラ以上の磁場をかけることで生じさせることを特徴とする。
尚、非強磁性体とは、強磁性体以外の磁性体をいい、常磁性体、及び反磁性体が挙げられる。
In order to solve the above-mentioned problem, the invention according to claim 1 forms a pattern by causing a pigment orientation different from the periphery of the pattern portion to occur in a pattern portion of a medium coated with a paint containing a pigment on a base material. A pattern forming method, wherein the pigment is a paint in which a pigment whose orientation changes in a strong magnetic field environment and a pigment whose orientation does not change in a strong magnetic field environment are mixed, and the orientation is ferromagnetic or ferromagnetic. It is generated by applying a magnetic field of 0.3 Tesla or higher to a magnetic member formed of a paint containing slag adjacent to the medium.
The non-ferromagnetic material refers to a magnetic material other than a ferromagnetic material, and includes a paramagnetic material and a diamagnetic material.

請求項1記載の発明によれば、同一塗膜面上にてパターンを形成することができる。また、請求項1記載の発明によれば、0.3テスラ未満の磁場がかかってもパターンが変化することがなく、通常の永久磁石による影響がなく、安定したパターンが得られる。 According to invention of Claim 1, a pattern can be formed on the same coating-film surface. According to the first aspect of the present invention, the pattern does not change even when a magnetic field of less than 0.3 Tesla is applied, and a stable pattern is obtained without being affected by a normal permanent magnet.

請求項2記載の発明は、請求項1記載の発明において、前記磁性部材として、強磁性体を用いて所望のパターンを形成し、隣接する部分には非強磁性体領域が存在する磁性部材を用いることを特徴とする。 According to a second aspect of the invention, in the invention according to the first aspect, as the magnetic member by using a ferromagnetic material to form a desired pattern, the adjacent portions of the magnetic member non ferromagnetic region is present It is characterized by using.

請求項2記載の発明によれば、パターンとパターンでない部分とのコントラストの差や色調の差を表現することができる。また、請求項2記載の発明によれば、強磁性体と非強磁性体とを交互に積層することで磁性部材の製造が容易になり、帯状部材の厚さを薄くすることにより、微細なパターンを得ることができる。 According to the second aspect of the present invention, it is possible to express a difference in contrast and a difference in color tone between a pattern and a non-pattern portion. According to the second aspect of the present invention, the magnetic member can be easily manufactured by alternately laminating the ferromagnetic material and the non-ferromagnetic material, and the thickness of the belt-like member can be reduced. A pattern can be obtained.

請求項記載の発明は、請求項1または2記載の発明において、強磁場環境にて配向が変化する顔料として、質量磁化率が10-63/kg以下であり、磁気異方性を有する顔料を用いることを特徴とする。 The invention according to claim 3 is the invention according to claim 1 or 2 , wherein the pigment whose orientation changes in a strong magnetic field environment has a mass magnetic susceptibility of 10 −6 m 3 / kg or less and a magnetic anisotropy. It is characterized by using the pigment which has.

請求項記載の発明によれば、強磁場環境にて配向が変化する顔料として、質量磁化率が10-63/kg以下であり、磁気異方性を有する顔料を用いることにより、通常の永久磁石による影響がなく、安定したパターンが得られる。 According to the invention described in claim 3, by using a pigment having a magnetic anisotropy of 10 −6 m 3 / kg or less as a pigment whose orientation changes in a strong magnetic field environment , A stable pattern can be obtained without being affected by the permanent magnet.

請求項4記載の発明は、請求項1から3のいずれか1項記載の発明において、前記基材の厚さを、前記強磁性体領域のパターン間隔以下とすることを特徴とする。 The invention of claim 4, wherein, in the invention of any one of claims 1 to 3, the thickness of the base material, you characterized in that the following pattern interval of the ferromagnetic region.

請求項4記載の発明によれば、基材の厚さを、強磁性体領域のパターン間隔以下とすることにより、微細なパターンを得ることができる。 According to the fourth aspect of the present invention, the thickness of the substrate, by the following pattern interval ferromagnetic region, it is possible to obtain a fine pattern.

本発明によれば、非強磁性顔料を用いて、強磁場環境下にてパターン形成を実現できる。   According to the present invention, pattern formation can be realized using a non-ferromagnetic pigment in a strong magnetic field environment.

本実施形態のパターン形成方法は、基材に顔料を含む塗料を塗布した媒体へのパターン形成方法であって、媒体のパターン部に該パターン部の周辺とは異なる磁場勾配を生じさせることでパターンを形成することを特徴とする。   The pattern forming method of the present embodiment is a pattern forming method on a medium in which a coating material containing a pigment is applied to a base material, and a pattern is formed by generating a magnetic field gradient different from the periphery of the pattern part in the pattern part of the medium. It is characterized by forming.

本実施形態のパターン形成方法は、上記構成に加え、磁場勾配が、強磁性体もしくは強磁性体を含んだ塗料によって形成された磁性部材を媒体に隣接させたものに磁場をかけることで生じさせてもよく、磁性部材として、強磁性体を用いて所望のパターンを形成し、隣接する部分には非強磁性体領域が存在する磁性部材を用いてもよい。 In the pattern forming method of this embodiment, in addition to the above-described configuration, the magnetic field gradient is generated by applying a magnetic field to a magnetic member formed of a ferromagnetic material or a coating material containing a ferromagnetic material adjacent to the medium. at best, as the magnetic member by using a ferromagnetic material to form a desired pattern, the adjacent portions may be a magnetic member non ferromagnetic region is present.

本実施形態のパターン形成方法は、上記構成に加え、磁場として、0.3テスラ以上の磁場をかけてもよく、顔料として、質量磁化率が10-63/kg以下であり、磁気異方性を有する顔料を用いるのが好ましい。 In addition to the above configuration, the pattern forming method of the present embodiment may apply a magnetic field of 0.3 Tesla or more as a magnetic field, and has a mass magnetic susceptibility of 10 −6 m 3 / kg or less as a pigment. It is preferable to use a pigment having a directivity.

本実施形態のパターン形成方法は、上記構成に加え、媒体の塗工層に任意の磁力線が通るように磁場をかけて、顔料を配向させてもよく、磁性部材に磁場をかけることにより、強磁性体と非強磁性体とが隣接する部分にて周囲とは異なる磁場の勾配が生じるようにしてもよく、基材の厚さを、強磁性体領域のパターン間隔以下とするのが好ましい。 The pattern forming method of the present embodiment, in addition to the structure described above, by applying a magnetic field to pass any magnetic field lines in the coating layer of the medium may be oriented pigments, by applying a magnetic field to the magnetic member, strong A magnetic field gradient different from the surroundings may be generated at a portion where the magnetic body and the non-ferromagnetic body are adjacent to each other, and the thickness of the base material is preferably set to be equal to or smaller than the pattern interval of the ferromagnetic region.

本実施形態によれば、非強磁性顔料を用い、強磁場環境下にてパターン形成を実現できる。   According to this embodiment, a non-ferromagnetic pigment can be used to realize pattern formation in a strong magnetic field environment.

図1(a)は本発明の一実施例に係るパターン形成方法を適用した装置の概念図であり、図1(b)は図1(a)に示した意匠性媒体の拡大図であり、図1(c)は本実施例のパターン形成方法で形成した意匠性媒体を上方から見た図であり、図1(d)及び(e)は図1(c)に示した意匠性媒体における顔料の配向状態を模式的に示す図であり、図1(f)は図1(a)に示した意匠性媒体の変形例である。   FIG. 1A is a conceptual diagram of an apparatus to which a pattern forming method according to an embodiment of the present invention is applied. FIG. 1B is an enlarged view of the designable medium shown in FIG. FIG. 1C is a view of the design medium formed by the pattern forming method of this embodiment as viewed from above, and FIGS. 1D and 1E are views of the design medium shown in FIG. It is a figure which shows the orientation state of a pigment typically, and FIG.1 (f) is a modification of the designable medium shown to Fig.1 (a).

図1(a)において、1、2は電磁石のヨークを示している。これらのヨーク1、2はコの字(もしくはCの字)形状に形成された一個のヨークの一部であり、図示しない部分にコイルが巻き付けられている。ヨーク1、2間には一部の磁力線3a、3b、3c、…、3lが形成されている。電磁石の磁場の強さは、0.3T(Tはテスラ)以上であるのが好ましい。なお、マイカに強磁性体を被覆した顔料は、赤銅色を得ることを目的としてごく弱い強磁性を持つα−Fe23を被覆したものであり、顔料としての質量磁化率は10-63/kg(SIunit)以下である(従来の磁場配向技術では強磁性体としてγ−Fe23、Fe34を使用していたが、これは磁化率を高めるためであり、磁化率の低いα−Fe23は従来使用されていなかった)。また、反磁性体だけで組成された顔料は1T以上の磁場が必要である。 In FIG. 1A, reference numerals 1 and 2 denote yokes of an electromagnet. These yokes 1 and 2 are part of one yoke formed in a U-shape (or C-shape), and a coil is wound around a portion (not shown). Between the yokes 1 and 2, some magnetic lines 3a, 3b, 3c,..., 3l are formed. The strength of the magnetic field of the electromagnet is preferably 0.3 T (T is Tesla) or more. The pigment coated with a ferromagnetic material on mica is coated with α-Fe 2 O 3 having very weak ferromagnetism for the purpose of obtaining a bronze color, and the mass magnetic susceptibility as a pigment is 10 −6. m 3 / kg (SIunit) or less (in the conventional magnetic field orientation technology, γ-Fe 2 O 3 and Fe 3 O 4 were used as ferromagnetic materials, but this is to increase the magnetic susceptibility, Α-Fe 2 O 3 having a low rate has not been used in the past. A pigment composed only of a diamagnetic material requires a magnetic field of 1T or more.

意匠性媒体(以下「媒体」という)5は、図1(b)に示すように、基材(例えば、樹脂、紙、セラミック等の非磁性体)5bに光輝性顔料を含む塗料5aを塗布したものであり、顔料は磁気異方性を有するものである。この顔料は、配向が永久磁石で変化せずに、所定の磁界を有する電磁石で変化する異方性磁化率を有する。   As shown in FIG. 1B, a designable medium (hereinafter referred to as “medium”) 5 is coated with a coating material 5a containing a glittering pigment on a base material (for example, a nonmagnetic material such as resin, paper, or ceramic) 5b. The pigment has magnetic anisotropy. This pigment has an anisotropic magnetic susceptibility that changes with an electromagnet having a predetermined magnetic field without changing its orientation with a permanent magnet.

図1(a)において、磁力線3a〜3lのうちほぼ直線状の磁力線3gに表面(図の上面)が沿う位置(図中のA)に媒体5が配置されている。一方で、磁力線3a〜3lのうち曲線状の磁力線3a及び3bに表面(図の上面)が沿う位置(図中のB)に媒体5が配置されている。   In FIG. 1A, the medium 5 is arranged at a position (A in the figure) where the surface (upper surface in the figure) is aligned with the substantially linear magnetic lines 3g among the magnetic lines 3a to 3l. On the other hand, the medium 5 is arranged at a position (B in the figure) where the surface (the upper surface in the figure) is aligned with the curved magnetic lines 3a and 3b among the magnetic lines 3a to 3l.

ここで、矢印Aが指す位置で磁場印加された媒体5と、矢印Bが指す位置で磁場印加された媒体5とについてそれぞれ説明する。   Here, the medium 5 applied with the magnetic field at the position indicated by the arrow A and the medium 5 applied with the magnetic field at the position indicated by the arrow B will be described.

矢印Aが指す位置で磁場印加された媒体5は、媒体5を傾けて観察すると、顔料塗布面においての色調変化が全面同時に起こる。また、この媒体5を図1(c)に示すb−b’の位置で裁断し、その断面を観察すると、図1(d)に示すように、顔料9a,9b,9c,9d,9eのそれぞれの列が水平に並んだ配向状態となっている。   When the medium 5 to which the magnetic field is applied at the position indicated by the arrow A is observed while the medium 5 is tilted, the color change on the pigment application surface occurs simultaneously on the entire surface. Further, when the medium 5 is cut at a position bb ′ shown in FIG. 1 (c) and the cross section thereof is observed, as shown in FIG. 1 (d), the pigments 9a, 9b, 9c, 9d, 9e Each column is aligned horizontally.

一方、矢印Bが指す位置で磁場印加された媒体5は、媒体5を傾けて観察すると、顔料塗布面においての色調変化が連続的に起こる。すなわち、図5(a)に示すように、水平状態の媒体5の奥側を傾けていくと、その傾きに合わせて、手前側に現われる帯状の光沢6が奥側に向かって媒体5の表面上を移動する。また、図5(b)に示すように、水平状態の媒体5の手前側を傾けていくと、その傾きに合わせて、奥側に現われる帯状の光沢6が手前側に向かって媒体5の表面上を移動する。また、この媒体5を図1(c)に示すb−b’の位置で裁断し、その断面を観察すると、図1(e)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9aを頂点とする、上に凸」の配向状態となっている。
ここで、図5(a)及び図5(b)は、本発明の第1の実施例に係る意匠性媒体の色調変化の一例を模式的に示す斜視図である。
On the other hand, when the medium 5 to which the magnetic field is applied at the position indicated by the arrow B is observed with the medium 5 tilted, the color tone changes continuously on the pigment application surface. That is, as shown in FIG. 5A, when the back side of the medium 5 in the horizontal state is tilted, the belt-like gloss 6 appearing on the near side matches the tilt and the surface of the medium 5 faces the back side. Move up. Further, as shown in FIG. 5B, when the front side of the medium 5 in the horizontal state is tilted, the belt-like gloss 6 appearing on the back side is in accordance with the tilt and the surface of the medium 5 is directed toward the front side. Move up. Further, when the medium 5 was cut at the position bb ′ shown in FIG. 1C and the cross section was observed, the pigments 9a, 9b, 9d and 9e were inclined as shown in FIG. 1E. The pigments 9a to 9e are in an alignment state of “convex upward with the vertex 9a” as a whole.
Here, FIG. 5A and FIG. 5B are perspective views schematically showing an example of a change in color tone of the design medium according to the first embodiment of the present invention.

図1(f)に示す媒体50は反磁性体の樹脂からなる基材5bと、基材5b上に所望のパターン形状に形成され強磁性体を含んだ塗料5cとで構成されている。
このような媒体50を、図1(a)の矢印Aが指す位置や矢印Bが指す位置などいずれかの磁力線3a〜3l上に配置することにより塗料5cの反磁性体が配向し、従来にはない色調のパターンが形成される。
A medium 50 shown in FIG. 1 (f) is composed of a base material 5b made of a diamagnetic resin and a paint 5c formed in a desired pattern shape on the base material 5b and containing a ferromagnetic material.
By arranging such a medium 50 on one of the magnetic lines of force 3a to 3l such as the position indicated by the arrow A or the position indicated by the arrow B in FIG. 1A, the diamagnetic material of the paint 5c is oriented. A pattern with no color tone is formed.

以下に示した材料を用いて媒体5を形成し評価した。
(組み合わせ)
UV樹脂 UV フレキソ ニス(TOKA) 10重量部
顔料 インフィニット R−08(資生堂) 1重量部
上記組み合わせによる配合の塗料をPETシート上にワイヤーバー#34で塗工し、ぬれた状態のままで、強磁場(1T)環境下のうち磁力線が曲線となっている場所(例えば、図1(a)のBの位置)に5分間さらし、その後UV照射を行い、塗膜の固定化を行った。
The medium 5 was formed and evaluated using the materials shown below.
(combination)
UV resin UV flexo varnish (TOKA) 10 parts by weight Pigment Infinite R-08 (Shiseido) 1 part by weight A paint of the above combination is applied on a PET sheet with a wire bar # 34, and remains strong in a wet state. Under a magnetic field (1T) environment, the film was exposed to a place where the lines of magnetic force are curved (for example, position B in FIG. 1A) for 5 minutes, and then UV irradiation was performed to fix the coating film.

そして、形成された媒体5を傾けて観察を行ったところ、図5の(a)及び(b)に示すように、傾けた方向に帯状の光沢が移動するといった、連続的な色調変化が認められた。また、この媒体において、図1(c)に示すb−b’の位置の断面を観察したところ、図1(e)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、上に凸」の配向状態となっていることが認められた。   Then, when the formed medium 5 was tilted and observed, a continuous change in color tone was observed such that the band-like gloss moved in the tilted direction as shown in FIGS. 5 (a) and 5 (b). It was. Further, in this medium, when the cross section at the position bb ′ shown in FIG. 1C was observed, the pigments 9a, 9b, 9d and 9e were inclined as shown in FIG. 1E. Thus, it was confirmed that the pigments 9a to 9e were in an orientation state of “convex upward with 9c as a vertex” as a whole.

このように、異方性磁化率を有する光輝性顔料を含む塗料を用い、かつ、強磁場環境下(1T)の磁場勾配によって、特異な色調変化が起こる意匠性媒体を形成することが可能である。   In this way, it is possible to form a designable medium that uses a paint containing a luster pigment having an anisotropic magnetic susceptibility and causes a unique color change due to a magnetic field gradient in a strong magnetic field environment (1T). is there.

尚、本実施例では媒体に形成されるパターンが11本の平行線の場合で説明したが、本発明はこれに限定されるものではなく、曲線、円形、楕円形、長円形、多角形、文字、符号、これらの組み合わせたもののいずれの形状であってもよい。また、顔料についても本実施例に限定されるものではなく、配向の変化に応じて透過率が変化する顔料であれば他の種類の顔料を用いてもよい。   In this embodiment, the case where the pattern formed on the medium is 11 parallel lines has been described. However, the present invention is not limited to this, and a curve, a circle, an ellipse, an oval, a polygon, Any shape of a character, a code, and a combination thereof may be used. Further, the pigment is not limited to the present embodiment, and other types of pigments may be used as long as the transmittance changes according to the change in orientation.

図2(a)は本発明の一実施例に係るパターン形成方法を適用した装置の概念図であり、図2(b)は図2(a)に示した磁性部材及び媒体の拡大図であり、図2(c)は図2(b)の拡大図であり、図2(d)は図2(a)に示した磁性部材の変形例である。   FIG. 2A is a conceptual diagram of an apparatus to which a pattern forming method according to an embodiment of the present invention is applied, and FIG. 2B is an enlarged view of the magnetic member and the medium shown in FIG. 2 (c) is an enlarged view of FIG. 2 (b), and FIG. 2 (d) is a modification of the magnetic member shown in FIG. 2 (a).

図2(a)において、1、2は電磁石のヨークを示している。これらのヨーク1、2はコの字(もしくはCの字)形状に形成された一個のヨークの一部であり、図示しない部分にコイルが巻き付けられている。ヨーク1、2間には一部の磁力線3a、3b、3c、…、3lが形成されている。電磁石の磁場の強さは、0.1T以上が好ましい。   In FIG. 2A, reference numerals 1 and 2 denote electromagnet yokes. These yokes 1 and 2 are part of one yoke formed in a U-shape (or C-shape), and a coil is wound around a portion (not shown). Between the yokes 1 and 2, some magnetic lines 3a, 3b, 3c,..., 3l are formed. The strength of the magnetic field of the electromagnet is preferably 0.1 T or more.

図1(a)において、磁力線3a〜3lのうちほぼ直線状の磁力線3gに表面(図の上面)が沿う位置(図中の矢印Aが指す位置)に磁性部材4が配置され、この磁性部材4の上には媒体5が配置されている(磁性部材4は図示しない非磁性体、例えばセラミックからなる支持部材で支持されている。)。一方、磁力線3a〜3lのうち曲線状の磁力線3a〜3dに表面(図の上面)が沿う位置(図中の矢印Bが指す位置)に磁性部材4が配置され、この磁性部材4の上には媒体5が配置されている。   In FIG. 1 (a), a magnetic member 4 is disposed at a position (position indicated by an arrow A in the figure) along the surface (upper surface in the figure) along the substantially linear magnetic force line 3g among the magnetic force lines 3a to 3l. A medium 5 is disposed on the substrate 4 (the magnetic member 4 is supported by a support member made of a nonmagnetic material (not shown) such as ceramic). On the other hand, the magnetic member 4 is disposed at a position (position indicated by an arrow B in the figure) along the surface (upper surface in the figure) of the magnetic force lines 3a to 3l along the curved magnetic force lines 3a to 3d. The medium 5 is arranged.

図2(b)に示す磁性部材4は、少なくとも一方の面(図の上面)に強磁性体領域4aが所望のパターン形状に形成され、強磁性体領域に隣接するように非強磁性体領域(例えば、反磁性体、常磁性体、もしくは弱磁性体)4bが形成されたものであり、例えば、磁性部材として、強磁性体からなる帯状部材と、非強磁性体からなる帯状部材とを交互に積層した積層体が挙げられる。   The magnetic member 4 shown in FIG. 2B has a non-ferromagnetic region such that the ferromagnetic region 4a is formed in a desired pattern shape on at least one surface (the upper surface in the figure) and is adjacent to the ferromagnetic region. (For example, a diamagnetic material, a paramagnetic material, or a weak magnetic material) 4b is formed. For example, as a magnetic member, a belt-shaped member made of a ferromagnetic material and a belt-shaped member made of a non-ferromagnetic material are used. The laminated body laminated | stacked alternately is mentioned.

ここで、強磁性体としては、鉄、ニッケル、コバルト等が挙げられ、反磁性体としてはアルミニウム、銅等が挙げられる。   Here, examples of the ferromagnetic material include iron, nickel, and cobalt, and examples of the diamagnetic material include aluminum and copper.

媒体5は、基材(例えば、樹脂、紙、セラミック等の非磁性体)5bに顔料を含む塗料5aを塗布したものであり、顔料は磁気異方性を有するものである。この顔料は、配向が永久磁石で変化せず、所定の磁界を有する電磁石で変化する異方性磁化率を有する。   The medium 5 is obtained by applying a coating material 5a containing a pigment to a base material (for example, a nonmagnetic material such as resin, paper, or ceramic) 5b, and the pigment has magnetic anisotropy. This pigment has an anisotropic magnetic susceptibility that does not change in orientation with a permanent magnet but changes with an electromagnet having a predetermined magnetic field.

図2(c)に示す磁性部材40は、強磁性体からなる板状部材40aにフォトリソグラフィ技術を用いてパターンが残るようにエッチングを施し、得られた溝部に非強磁性体40bを埋め込んだものである。   In the magnetic member 40 shown in FIG. 2C, the plate-like member 40a made of a ferromagnetic material is etched using a photolithography technique so that a pattern remains, and the non-ferromagnetic material 40b is embedded in the obtained groove. Is.

図4(a)は図2(a)に示した媒体の平面図であり、図4(b)は図4(a)のIVb−IVb線断面図である。
図4(a)、(b)に示すように塗料5aのうち、磁性部材4(図2(a)参照)の非強磁性体領域4bや磁性部材4に接触していない部分(空気:反磁性体)に対応する領域は磁力線に沿うように配向が水平となっており、磁性部材4の強磁性体領域4aに対応する領域は配向が強磁性体領域4aからの影響により配向が垂直になっている。この結果、媒体5における塗料5aの顔料の状態に変化が生じる。すなわち、媒体5に磁性部材4の平行線状のパターンが反映され、そのパターンと同一形状のパターン5apが形成されるのである。このような状態で媒体に塗料を固化させるための手段、例えば、紫外線(熱)を与えることにより塗料5aが固化する。磁性部材4から取り出した後、媒体5の顔料の配向は固定された状態であり、永久磁石に媒体5を接触しても配向に変化が生じることはない。
4A is a plan view of the medium shown in FIG. 2A, and FIG. 4B is a cross-sectional view taken along line IVb-IVb in FIG. 4A.
As shown in FIGS. 4A and 4B, the portion of the paint 5a that is not in contact with the non-ferromagnetic material region 4b of the magnetic member 4 (see FIG. 2A) or the magnetic member 4 (air: anti-reverse) The region corresponding to the magnetic body) is horizontally oriented along the magnetic field lines, and the region corresponding to the ferromagnetic region 4a of the magnetic member 4 is oriented vertically due to the influence of the ferromagnetic region 4a. It has become. As a result, the state of the pigment of the paint 5a in the medium 5 changes. That is, the parallel line pattern of the magnetic member 4 is reflected on the medium 5, and a pattern 5ap having the same shape as the pattern is formed. In such a state, the paint 5a is solidified by applying a means for solidifying the paint to the medium, for example, ultraviolet rays (heat). After removal from the magnetic member 4, the orientation of the pigment in the medium 5 is fixed, and the orientation does not change even when the medium 5 is brought into contact with the permanent magnet.

ここで、図2(a)において、矢印Aが指す位置で磁場印加された媒体5と、矢印Bが指す位置で磁場印加された媒体5とについてそれぞれ説明する。   Here, in FIG. 2A, the medium 5 applied with the magnetic field at the position indicated by the arrow A and the medium 5 applied with the magnetic field at the position indicated by the arrow B will be described.

矢印Aが指す位置で磁場印加された媒体5は、図3(a)に示すように、表面の中央部分に上記磁性部材を使用して形成されたパターン8がある。この媒体5を傾けて観察すると、パターン8の面と、パターン8の周りの面(パターン8の部分以外の面)とにおいて、それぞれ色調変化が起こる。   As shown in FIG. 3A, the medium 5 to which the magnetic field is applied at the position indicated by the arrow A has a pattern 8 formed using the magnetic member at the center of the surface. When the medium 5 is tilted and observed, color change occurs on the surface of the pattern 8 and on the surface around the pattern 8 (surface other than the portion of the pattern 8).

ここで、図3(a)は本発明の一実施例に係る意匠性媒体を上方から見た図であり、図3(b)、図3(c)、図3(d)は図3(a)に示した媒体のパターン部分における顔料の配向状態を模式的に示す断面図である。   Here, FIG. 3A is a view of the design medium according to one embodiment of the present invention as viewed from above, and FIG. 3B, FIG. 3C, and FIG. It is sectional drawing which shows typically the orientation state of the pigment in the pattern part of the medium shown to a).

パターン8の周りの面では、上記実施例1と同様に色調変化が全面同時に起こり、図3(a)に示すb−b’の位置で裁断し、その断面を観察すると、図1(d)に示したものと同じく、顔料9a,9b,9c,9d,9eのそれぞれの列が水平に並んだ配向状態となっている。   On the surface around the pattern 8, the color change occurs simultaneously on the entire surface in the same manner as in the first embodiment. When cutting is performed at the position bb ′ shown in FIG. 3A and the cross section is observed, FIG. In the same manner as shown in Fig. 8, the respective rows of the pigments 9a, 9b, 9c, 9d, 9e are aligned horizontally.

パターン8の面では、色調変化が連続的に起こる。すなわち、水平状態の媒体を傾けていくと、帯状の光沢が、傾けた方向とは反対の方向に向かってパターン面上を移動する。例えば、手前側に媒体5を傾けると、奥側に向かって帯状の光沢が移動する。   On the surface of the pattern 8, the color tone changes continuously. That is, as the medium in the horizontal state is tilted, the belt-like gloss moves on the pattern surface in the direction opposite to the tilted direction. For example, when the medium 5 is inclined toward the front side, the belt-like gloss moves toward the back side.

また、この媒体5において、図3(a)に示すa−a’の位置で裁断し、その断面を観察すると、その断面は、図3(b)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、下に凸」の配向状態となっている。   Further, when the medium 5 is cut at the position aa ′ shown in FIG. 3A and the cross section thereof is observed, the cross section shows the pigments 9a, 9b, and 9d as shown in FIG. 3B. 9e and 9e are inclined, and the pigments 9a to 9e are in an alignment state of “convex downward with the peak at 9c” as a whole.

一方、矢印Bが指す位置で磁場印加された媒体5も、図3(a)に示すように、表面の中央部分に上記磁性部材を使用して形成されたパターン8があり、この媒体5を傾けて観察すると、パターン8の面と、パターン8の周りの面(パターン8の部分以外の面)とにおいて、それぞれ色調変化が起こる。   On the other hand, the medium 5 to which the magnetic field is applied at the position indicated by the arrow B also has a pattern 8 formed using the magnetic member at the center of the surface, as shown in FIG. When tilted and observed, color change occurs on the surface of the pattern 8 and on the surface around the pattern 8 (surface other than the portion of the pattern 8).

パターン8の面及びパターン8の周りの面はともに、色調変化が連続的に起こる。すなわち、図6(a)に示すように、水平状態の媒体5の奥側を傾けていくと、パターン8の周りの面では、傾きに合わせて、手前側に現われる帯状の光沢6が奥側に向かって媒体5の表面上を移動し、また、パターン8の面では、帯状の光沢7が、傾けた方向とは反対の方向(手前側)に向かってパターン面上を移動する。また、図6(b)に示すように、水平状態の媒体5の手前側を傾けていくと、パターン8の周りの面では、傾きに合わせて、奥側に現われる帯状の光沢6が手前側に向かって媒体5の表面上を移動し、また、パターン8の面では、帯状の光沢7が、傾けた方向とは反対の方向(奥側)に向かってパターン面上を移動する。   Both the surface of the pattern 8 and the surface surrounding the pattern 8 undergo a continuous change in color tone. That is, as shown in FIG. 6 (a), when the back side of the medium 5 in the horizontal state is tilted, the belt-like gloss 6 that appears on the near side appears on the back side in accordance with the tilt on the surface around the pattern 8. Further, on the surface of the pattern 8, the belt-like gloss 7 moves on the pattern surface in a direction opposite to the inclined direction (front side). Further, as shown in FIG. 6B, when the front side of the horizontal medium 5 is tilted, a belt-like gloss 6 appearing on the back side is formed on the front side in accordance with the tilt on the surface around the pattern 8. Further, on the surface of the pattern 8, the belt-like gloss 7 moves on the pattern surface in a direction (back side) opposite to the inclined direction.

また、この媒体5を図3(a)に示すa−a’及びb−b’の位置で裁断し、その断面をそれぞれ観察すると、a−a’の断面は、図3(b)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、下に凸」の配向状態となっており、b−b’の断面は、図1(e)に示したものと同じく、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、上に凸」の配向状態となっている。   Further, when the medium 5 is cut at the positions aa ′ and bb ′ shown in FIG. 3A and the cross sections thereof are observed, the cross section aa ′ is shown in FIG. 3B. As described above, the pigments 9a, 9b, 9d and 9e are in an inclined orientation, and the pigments 9a to 9e are in an orientation state of “convex in the bottom with 9c as a vertex” as a whole, and b−b ′. In the same manner as shown in FIG. 1 (e), the cross-section of the pigments 9a, 9b, 9d, and 9e is inclined, and the pigments 9a to 9e are generally “upwardly convex with 9c as the apex. ”Orientation.

尚、本実施例では媒体に形成されるパターンが11本の平行線の場合で説明したが、本発明はこれに限定されるものではなく、曲線、円形、楕円形、長円形、多角形、文字、符号、これらの組み合わせたもののいずれの形状であってもよい。また、顔料についても本実施例に限定されるものではなく、配向の変化に応じて透過率が変化する顔料であれば他の種類の顔料を用いてもよい。   In this embodiment, the case where the pattern formed on the medium is 11 parallel lines has been described. However, the present invention is not limited to this, and a curve, a circle, an ellipse, an oval, a polygon, Any shape of a character, a code, and a combination thereof may be used. Further, the pigment is not limited to the present embodiment, and other types of pigments may be used as long as the transmittance changes according to the change in orientation.

以下に示した材料を用いて媒体を形成し評価した。
(組み合わせ)
UV樹脂 UV フレキソ ニス(TOKA) 10重量部
顔料 インフィニット R−08(資生堂) 1重量部
上記組み合わせによる配合の塗料をPETシート上にワイヤーバー#34で塗工し、ぬれた状態のまま塗工面と反対面とにFeとAlとで作製したパターンを密着させた状態で、強磁場(1T)環境下のうち磁力線が曲線となっている場所(例えば、図2(a)の矢印Bが指す位置)に5分間さらし、その後UV照射を行い、塗膜の固定化を行った。
Media were formed and evaluated using the materials shown below.
(combination)
UV resin UV flexo varnish (TOKA) 10 parts by weight Pigment Infinite R-08 (Shiseido) 1 part by weight The paint of the above combination is applied onto a PET sheet with a wire bar # 34, and the coated surface remains wet. In a state where the magnetic field lines are curved in a strong magnetic field (1T) environment with a pattern made of Fe and Al in close contact with the opposite surface (for example, a position indicated by an arrow B in FIG. 2A) ) For 5 minutes, followed by UV irradiation to fix the coating.

そして、形成された媒体5を傾けて観察を行ったところ、図6の(a)及び(b)に示すように、パターン面とそれ以外の面において、それぞれ帯状の光沢が移動するといった、連続的な色調変化が認められた。また、この媒体5において、図3(a)に示すa−a’及びb−b’の断面をそれぞれ観察したところ、a−a’の断面は、図3(b)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、下に凸」の配向状態となっており、b−b’の断面は、図1(e)に示すように、顔料9a,9b,9d及び9eが傾いた配向となっており、顔料9a〜9eは全体として「9cを頂点とする、上に凸」の配向状態となっていることが認められた。   Then, when the formed medium 5 is tilted and observed, as shown in FIGS. 6A and 6B, the belt-like gloss moves continuously on the pattern surface and the other surfaces. Color change was observed. Further, in this medium 5, when the cross sections aa ′ and bb ′ shown in FIG. 3A were observed, the cross section aa ′ was a pigment as shown in FIG. 3B. 9a, 9b, 9d, and 9e are inclined, and the pigments 9a to 9e are in an overall orientation state of “convex downward with 9c as a vertex”, and the cross section of bb ′ is As shown in FIG. 1 (e), the pigments 9a, 9b, 9d, and 9e are in an inclined orientation, and the pigments 9a to 9e are in an orientation state of "convex upward with 9c as a vertex" as a whole. It was recognized that

このように、強磁場環境(1T)にて、異方性磁化率を有する光輝性顔料を含む塗料を用いて、磁場勾配を用いたパターン形成を行った結果、パール顔料等の光輝性顔料の色調変化にも大きな影響を与え、1種1層の塗膜中で2種類の色調変化を行うことが可能となった。また、通常では配向が変化しない顔料も配向を変化させることができる。   As described above, as a result of pattern formation using a magnetic field gradient using a paint containing a bright pigment having an anisotropic magnetic susceptibility in a strong magnetic field environment (1T), a bright pigment such as a pearl pigment can be obtained. It has a great influence on the color tone change, and two types of color tone change can be performed in one kind of one-layer coating film. In addition, pigments that do not normally change orientation can also change orientation.

以上において、1種類の顔料を分散した塗料を用いて、多層コーティングすることなく、従来にない、特異な色調変化を有するパターンを形成することが可能である。   In the above, it is possible to form an unprecedented pattern having a specific color tone change without using multilayer coating by using a paint in which one kind of pigment is dispersed.

なお、上記各実施形態及び各実施例において、顔料の異方性磁化率が正の値の場合、顔料は磁力線に水平に配向するので、顔料を配向させたい角度に沿った磁力線の中に媒体を配置することによって、配向制御が可能となる。また、顔料の異方性磁化率が負の値の場合、顔料は磁力線に垂直に配向するので、顔料を配向させたい角度に直交した磁力線の中に媒体を配置することによって、配向制御が可能となる。   In each of the above embodiments and examples, when the anisotropic magnetic susceptibility of the pigment is a positive value, the pigment is oriented horizontally with respect to the magnetic lines of force, so that the medium is within the magnetic lines of force along the angle at which the pigment is to be oriented. By arranging, the orientation can be controlled. In addition, when the anisotropic magnetic susceptibility of the pigment is negative, the pigment is oriented perpendicular to the magnetic field lines, so the orientation can be controlled by placing the medium in the magnetic field lines perpendicular to the angle at which the pigment is to be oriented. It becomes.

また、上記各実施形態及び各実施例において、溶媒が蒸発する時に、直立した顔料が倒れてしまうので、光輝性顔料を分散した媒体を無溶媒樹脂(例えば、紫外線硬化樹脂、熱可塑性樹脂、熱硬化樹脂等)で形成するようにしてもよい。   In each of the above embodiments and examples, since the upright pigment falls when the solvent evaporates, the medium in which the glitter pigment is dispersed is used as a solvent-free resin (for example, ultraviolet curable resin, thermoplastic resin, heat It may be formed of a cured resin or the like.

図2(a)、(b)に示すように塗料5aのうち、磁性部材4(図1(a)参照)の非強磁性体領域4bや磁性部材4に接触していない部分(空気:反磁性体)に対応する領域は磁力線に沿うように配向が水平となっており、磁性部材4の強磁性体領域4aに対応する領域は配向が強磁性体領域4aからの影響により配向が垂直になっている。この結果、媒体5における塗料5aの顔料の状態に変化が生じる。すなわち、媒体5に磁性部材4の平行線状のパターンが反映され、そのパターンと同一形状のパターンが形成されるのである。このような状態で媒体に塗料を固化させるための手段、例えば、紫外線(熱)を与えることにより塗料5aが固化する。磁性部材4から取り出した後、媒体5の顔料の配向は固定された状態であり、永久磁石に媒体5を接触しても配向に変化が生じることはない。   As shown in FIGS. 2 (a) and 2 (b), a portion of the paint 5a that is not in contact with the non-ferromagnetic region 4b of the magnetic member 4 (see FIG. 1 (a)) or the magnetic member 4 (air: anti-reverse) The region corresponding to the magnetic body) is horizontally oriented along the magnetic field lines, and the region corresponding to the ferromagnetic region 4a of the magnetic member 4 is oriented vertically due to the influence of the ferromagnetic region 4a. It has become. As a result, the state of the pigment of the paint 5a in the medium 5 changes. That is, the parallel line pattern of the magnetic member 4 is reflected on the medium 5, and a pattern having the same shape as that pattern is formed. In such a state, the coating material 5a is solidified by applying a means for solidifying the coating material to the medium, for example, ultraviolet rays (heat). After removal from the magnetic member 4, the orientation of the pigment in the medium 5 is fixed, and the orientation does not change even when the medium 5 is brought into contact with the permanent magnet.

以下に示した材料を用いて媒体を形成し評価した。
(組み合わせ1)
UV樹脂 UV フレキソ ニス(TOKA) 10重量部
顔料A SECURE SHIFT(Flex Products) 1重量部
顔料B IRIODIN 1重量部
(組み合わせ2)
UV樹脂 UV フレキソ ニス(TOKA) 10重量部
顔料A SECURE SHIFT(Flex Products) 1重量部
(組み合わせ3)
UV樹脂 UV フレキソ ニス(TOKA) 10重量部
顔料C 磁性パール顔料(Merck) 1重量部
上記組み合わせ1〜3による配合の塗料をPETシート上にワイヤーバー#34で塗工し、ぬれた状態のまま塗工面と反対面とにFeとAlとで作製したパターンを密着させた状態で強磁場(1T)環境下に5分間さらし、その後UV照射を行い塗膜を固定化しパターン形成を行った。その結果を、表1に示す。

Figure 0005053525
Media were formed and evaluated using the materials shown below.
(Combination 1)
UV resin UV flexo varnish (TOKA) 10 parts by weight Pigment A SECURE SHIFT (Flex Products) 1 part by weight Pigment B IRIODIN 1 part by weight (combination 2)
UV resin UV flexo varnish (TOKA) 10 parts by weight Pigment A SECURE SHIFT (Flex Products) 1 part by weight (combination 3)
UV resin UV flexo varnish (TOKA) 10 parts by weight Pigment C Magnetic pearl pigment (Merck) 1 part by weight The paint of the above combination 1 to 3 is applied onto a PET sheet with a wire bar # 34 and remains wet. A pattern made of Fe and Al was adhered to the coated surface and the opposite surface, and exposed to a strong magnetic field (1T) environment for 5 minutes, and then UV irradiation was performed to fix the coating film to form a pattern. The results are shown in Table 1.
Figure 0005053525

このように、強磁場環境(1T)にて配向が変化する顔料と配向が変化しない顔料とを混合した塗料を用いて、磁場勾配を用いたパターン形成を行った結果、通常では配向が変化しない顔料も配向を変化させることができる。   As described above, as a result of pattern formation using a magnetic field gradient using a paint in which a pigment whose orientation changes in a strong magnetic field environment (1T) and a pigment whose orientation does not change, the orientation does not normally change. The pigment can also change its orientation.

以上において、異方性磁化率の異なる2種類の顔料を分散した塗料を用いて、強磁場環境下で特異なパターンを形成することが可能である。
尚、本実施例では光輝性顔料を用いた場合で説明したが、本発明はこれに限定されるものではなく、配向の変化に応じて透過率が変化する顔料であれば他の種類の顔料を用いてもよい。
In the above, it is possible to form a peculiar pattern in a strong magnetic field environment using a paint in which two kinds of pigments having different anisotropic magnetic susceptibility are dispersed.
In the present embodiment, the case where a bright pigment is used has been described. However, the present invention is not limited to this, and other types of pigments may be used as long as the transmittance changes according to the change in orientation. May be used.

本発明は、塗膜面に周囲と異なる微細な色調あるいは模様、図形、文字等のパターンの形成を行うことに利用が可能である。   INDUSTRIAL APPLICABILITY The present invention can be used for forming a fine color tone or a pattern such as a pattern, a figure, or a character different from the surroundings on the coating film surface.

(a)は本発明の一実施例に係るパターン形成方法を適用した装置の概念図であり、(b)は(a)に示した意匠性媒体の拡大図であり、(c)は本実施例のパターン形成方法で形成した意匠性媒体を上方から見た図であり、(d)及び(e)は(c)に示した意匠性媒体における顔料の配向状態を模式的に示す図であり、(f)は(a)に示した意匠性媒体の変形例である。(A) is the conceptual diagram of the apparatus which applied the pattern formation method based on one Example of this invention, (b) is an enlarged view of the designable medium shown to (a), (c) is this implementation It is the figure which looked at the designable medium formed with the pattern formation method of an example from the upper part, (d) And (e) is a figure which shows typically the orientation state of the pigment in the designable medium shown to (c). (F) is a modification of the designable medium shown in (a). (a)は本発明の一実施例に係るパターン形成方法を適用した装置の概念図であり、(b)は(a)に示した磁性部材及び媒体の拡大図であり、(c)は(b)の拡大図であり、(d)は(a)に示した磁性部材の変形例である。(A) is the conceptual diagram of the apparatus which applied the pattern formation method based on one Example of this invention, (b) is an enlarged view of the magnetic member and medium shown to (a), (c) is ( It is an enlarged view of b), (d) is a modification of the magnetic member shown in (a). (a)は本発明の一実施例に係る意匠性媒体を上方から見た図であり、(b)、(c)、(d)は(a)に示した媒体のパターン部分における顔料の配向状態を模式的に示す断面図である。(A) is the figure which looked at the designable medium which concerns on one Example of this invention from upper direction, (b), (c), (d) is orientation of the pigment in the pattern part of the medium shown to (a). It is sectional drawing which shows a state typically. (a)は図2(a)に示した媒体の平面図であり、(b)は(a)のIVb−IVb線断面図である。FIG. 4A is a plan view of the medium shown in FIG. 2A, and FIG. 4B is a sectional view taken along line IVb-IVb in FIG. (a)及び(b)は、本発明の第1の実施例に係る意匠性媒体の色調変化の一例を模式的に示す斜視図である。(A) And (b) is a perspective view which shows typically an example of the color tone change of the designable medium which concerns on the 1st Example of this invention. (a)及び(b)は、本発明の第2の実施例に係る意匠性媒体の色調変化の一例を模式的に示す斜視図である。(A) And (b) is a perspective view which shows typically an example of the color tone change of the designable medium which concerns on the 2nd Example of this invention.

符号の説明Explanation of symbols

ヨーク
3a〜3l 磁力線
4、40 磁性部材
4a、40a 強磁性体領域
4b、40b 非強磁性体領域
5 媒体
5a 塗料
5b 基材
Yoke 3a-3l Magnetic field lines 4, 40 Magnetic member 4a, 40a Ferromagnetic region 4b, 40b Non-ferromagnetic region 5 Medium 5a Paint 5b Base material

Claims (4)

基材に顔料を含む塗料を塗布した媒体のパターン部に該パターン部の周辺とは異なる顔料の配向を生じさせることでパターンを形成するパターン形成方法であって、前記顔料として強磁場環境にて配向が変化する顔料と強磁場環境にて配向が変化しない顔料とを混合した塗料を用い、前記配向が、強磁性体もしくは強磁性体を含んだ塗料によって形成された磁性部材を前記媒体に隣接させたものに0.3テスラ以上の磁場をかけることで生じさせることを特徴とするパターン形成方法。   A pattern forming method for forming a pattern in a pattern portion of a medium in which a paint containing a pigment is applied to a base material by causing orientation of a pigment different from the periphery of the pattern portion, wherein the pigment is used in a strong magnetic field environment. Using a paint in which a pigment whose orientation changes and a pigment whose orientation does not change in a strong magnetic field environment are mixed, and the magnetic member formed of the ferromagnetic material or the paint containing the ferromagnetic material is adjacent to the medium. A pattern forming method characterized in that the pattern is generated by applying a magnetic field of 0.3 Tesla or higher to the processed material. 前記磁性部材として、強磁性体を用いて所望のパターンを形成し、隣接する部分には非強磁性体領域が存在する磁性部材を用いることを特徴とする請求項1記載のパターン形成方法。   2. The pattern forming method according to claim 1, wherein a desired pattern is formed using a ferromagnetic material as the magnetic member, and a magnetic member having a non-ferromagnetic material region in an adjacent portion is used. 強磁場環境にて配向が変化する顔料として、質量磁化率が10-63/kg以下であり、磁気異方性を有する顔料を用いることを特徴とする請求項1または2記載のパターン形成方法。 3. The pattern formation according to claim 1, wherein the pigment whose orientation changes in a strong magnetic field environment is a pigment having a mass magnetic susceptibility of 10 −6 m 3 / kg or less and having magnetic anisotropy. Method. 前記基材の厚さを、前記強磁性体領域のパターン間隔以下とすることを特徴とする請求項1から3のいずれか1項記載のパターン形成方法。 The thickness of the substrate, patterning how to any one of claims 1 to 3, characterized in that the following pattern interval of the ferromagnetic region.
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