JP4779259B2 - Anti-counterfeiting materials and fixtures with anti-counterfeiting treatment - Google Patents

Anti-counterfeiting materials and fixtures with anti-counterfeiting treatment Download PDF

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Publication number
JP4779259B2
JP4779259B2 JP2001248760A JP2001248760A JP4779259B2 JP 4779259 B2 JP4779259 B2 JP 4779259B2 JP 2001248760 A JP2001248760 A JP 2001248760A JP 2001248760 A JP2001248760 A JP 2001248760A JP 4779259 B2 JP4779259 B2 JP 4779259B2
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Prior art keywords
counterfeiting
layer
boehmite
aluminum
aluminum base
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JP2003064483A (en
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敏也 石井
忠志 本郷
聡一 秦
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Toppan Inc
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Toppan Inc
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    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/023—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material only coatings of metal elements only
    • C—CHEMISTRY; METALLURGY
    • C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
    • C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
    • C23C28/00—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D
    • C23C28/02—Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of groups C23C2/00 - C23C26/00 or by combinations of methods provided for in subclasses C23C and C25C or C25D only coatings only including layers of metallic material
    • C23C28/028—Including graded layers in composition or in physical properties, e.g. density, porosity, grain size

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Materials Engineering (AREA)
  • Mechanical Engineering (AREA)
  • Metallurgy (AREA)
  • Organic Chemistry (AREA)
  • Credit Cards Or The Like (AREA)
  • Printing Methods (AREA)
  • Laminated Bodies (AREA)
  • Other Surface Treatments For Metallic Materials (AREA)
  • Paper (AREA)

Description

【０００１】
【発明の属する技術分野】
本発明は、表面にベーマイト層を設けたアルミニウム基材を用いた偽造防止材料、及びこの偽造防止材料を用いた備品に関するものである。
【０００２】
【従来の技術】
カード、有価証券、有名ブランド商品等には、物まね防止、信頼性維持等の目的で、各種偽造防止材料が存在し、それぞれ目的に応じて利用されている。
前述の偽造防止材料として、例えば、赤外線、紫外線を用いて検出可能な表示物を施し、通常では確認できないが、赤外線、紫外線検出器を使用することにより、前記表示部が検出できるか、否かにより真偽を判定する手段があるが、通常の目視では検出ができない課題があった。
【０００３】
【発明が解決しようとする課題】
本発明の目的は、機器を用いずに、目視により検知可能で、しかも偽造が難しい構成の偽造防止材料を提供することである。
【０００４】
【課題を解決するための手段】
請求項１に記載の発明は、表面に所望の厚みのベーマイト層を有するアルミニウム基材の、前記ベーマイト層上に、ベーマイトより屈折率が大きい金属からなり、光線を透過する厚みの表面層を設けたことを特徴とする偽造防止材料である。
このように、得ようとする着色に応じて、アルミニウム基材の表面に設けるベーマイト層の厚みを設定し、さらにベーマイトより屈折率が大きい金属層を設けることにより、屈折率を変化させることができ、ベーマイトからなる表面層の厚みにより、特定の色となり、この色を特定することで、所望の偽造防止材料とすることができる。
【０００５】
請求項２に記載の発明は、前記アルミニウム基材が、アルミニウム蒸着フィルムであることを特徴とする、請求項１記載の偽造防止材料である。
このように、アルミニウム基材を、アルミニウム蒸着フィルムとすることにより、柔軟性を有する偽造防止装飾材料とすることができ、各種用途に適用することができる。
【０００６】
請求項３に記載の発明は、前記表面層が、白金であることを特徴とする、請求項１、または２記載の偽造防止材料である。
このように、ベーマイトより屈折率が大きい金属として、白金を用いることで、安定した金属光沢を有する偽造防止材料とすることができる。
【０００７】
請求項４に記載の発明は、前記表面層上に保護層を設けたことを特徴とする、請求項１ないし３のいずれかに記載の偽造防止材料である。
このように、表面層上に、透明保護層を設けることで、表面層の保護が図れると共に、着色等の構成をさらに付加することができる。
【０００８】
請求項５に記載の発明は、前記アルミニウム基材に設けるベーマイト層の厚みを変化させた、複数のアルミニウム基材を用いたことを特徴とする、請求項１ないし４のいずれかに記載の偽造防止材料である。
このように、ベーマイト層の厚みを変えたアルミニウム基材を複数用いることで、着色が異なる部分を現出することができ、さらに偽造防止性を増すことができる。
【０００９】
請求項６に記載の発明は、前記アルミニウム基材が、図形、文字、数字等の特定形状としたことを特徴とする、請求項１ないし５のいずれかに記載の偽造防止材料である。
このように、着色を部分的に、しかも、図形等の特定形状とすることで、偽造防止性を増すことができる。
また、ベーマイト層の厚みを変えたアルミニウム基材を複数用いることで、特定形状ばかりでなく、着色が異なる部分も現出することができ、さらに偽造防止性を増すことができる。
【００１０】
請求項６に記載の発明は、前記アルミニウム基材上に、図形、文字、数字等の特定形状の印刷層を設けたことを特徴とする、請求項１ないし５のいずれかに記載の偽造防止材料である。
このように、表面層上に、部分的に図形等の印刷層を設けることで、偽造防止性を増すことができる。
【００１１】
【発明の実施の形態】
図１は、本発明の装飾材料の一実施例を示す破断説明図であり、図２は、図１のＡ−Ａからの断面図である。
図中、１は、アルミニウム基材を、２は、ベーマイト層を、３は、表面層をそれぞれ示す。
【００１２】
ここで、アルミニウム基材１は、アルミニウム板、アルミニウム箔、あるいは前記アルミニウム材単体でなく、別の材料、例えば、紙、プラスチック材料と組み合わせた複合材料の、いずれでもよい。
また、アルミニウム蒸着フィルムを使用すれば、他の材料との複合化が容易であり、柔軟性に優れているので、フレキシブルな偽造防止材料として、使用可能である。
【００１３】
ベーマイト層２は、アルミニウム基材１のアルミニウム面をベーマイト処理することによって、形成する。このベーマイト層の厚さは、前記のベーマイト処理の度合いにより変化させることができる。
そして、得ようとする着色に応じて、ベーマイト処理を行い、所定の厚みのベーマイト層を形成する。
【００１４】
表面層３は、前述のベーマイト層のベーマイトよリ屈折率が大きい金属からなり、光線を透過する厚みに設ける。
ここで、ベーマイトより屈折率が大きい金属として、白金、銅等があるが、酸化等がなく安定している白金が好ましい。また、光線が透過する厚みは、１０ｎｍから２０ｎｍの範囲が好ましい。
【００１５】
そして、図３に示すように、前記表面層３の上に、透明な保護層４を設けてもよい。この保護層４は、表面層３を保護し、外部からの力、環境の影響で、傷や亀裂が発生したり、腐食や変色が発生するのを防止する。
また、この保護層４に、着色を施すことにより、より偽造防止性を高めることができる。
【００１６】
前述の偽造防止材料は、ベーマイト層の厚みを特定した１つの材料を用いるだけでなく、図４に示すように、ベーマイト層の厚みを変えた複数の材料を用いた偽造防止材料としてもよい。
このように、複数の材料を用いることで、着色の異なる部分が生じ、偽造防止性がさらに向上させることができる。
【００１７】
また、表面層３の上に、文字、図形等の印刷層を設けた構成としてもよい。
このように、特定の着色状態の材料上に、印刷層を設けることで、着色の異なる部分が生じ、偽造防止性がさらに向上させることができる。
【００１８】
次に、本発明の具体例について説明する。
アルミニウム基材として、厚みが４０μｍのアルミニウム箔を用い、このアルミニウム箔の表面をベーマイト処理し、ベーマイト層を設け、次に、このベーマイト層の上に白金をスパッタリングし、表面層を形成した。この時の、スパッタリングの条件は、３０ｍＡで、３０秒間であり、厚みは１２ｎｍであった。
そして、前記ベーマイト処理時間を変えて、それぞれ着色度合いを変えた偽造防止材料を作製した。その結果は、表１に示す通りである。
【００１９】
【表１】

Figure 0004779259
【００２０】
表１から明らかなように、アルミニウム基材の表面に設けたベーマイト層の厚みが変化することで、着色の度合いが変化する。そこで、所望の偽造防止材料を作製する場合、ベーマイト処理時間を特定すればよい。
【００２１】
このように、本発明の偽造防止材料は、以上の構成からなるので、アルミニウム基材の表面に設けたベーマイト層の厚みが変化させる、所望の着色の度合いの材料とすることが
できるので、各種偽造防止材料として、各種基体に取り付けることで、偽造防止可能な備品とすることができる。
【００２２】
【発明の効果】
本発明の偽造防止材料は、以上の構成からなるので、アルミニウム基材の表面に設けたベーマイト層の厚みが変化させる、所望の着色の度合いとすることができるので、各種偽造防止として使用することができる。
【００２３】
【図面の簡単な説明】
【図１】本発明の一実施例を示す破断説明図。
【図２】図１のＡ−Ａからの断面図。
【図３】本発明の他の実施例を示す説明図。
【図４】本発明の他の実施例を示す説明図。
【図５】本発明の他の実施例を示す説明図。
【符号の説明】
１・・・アルミニウム基材
２・・・ベーマイト層
３・・・表面層
４・・・保護層
６・・・印刷層[0001]
BACKGROUND OF THE INVENTION
The present invention relates to an anti-counterfeit material using an aluminum base material provided with a boehmite layer on the surface, and a fixture using the anti-counterfeit material.
[0002]
[Prior art]
Various anti-counterfeiting materials exist for cards, securities, well-known brand products, etc. for the purpose of preventing imitation and maintaining reliability, and are used according to their purposes.
As the above-mentioned anti-counterfeiting material, for example, a display object that can be detected using infrared rays and ultraviolet rays is applied and cannot be confirmed normally, but whether or not the display unit can be detected by using infrared rays and ultraviolet ray detectors. However, there is a problem that cannot be detected by normal visual inspection.
[0003]
[Problems to be solved by the invention]
An object of the present invention is to provide an anti-counterfeiting material that can be detected visually without using a device and is difficult to forge.
[0004]
[Means for Solving the Problems]
According to the first aspect of the present invention, an aluminum base material having a boehmite layer with a desired thickness on the surface is provided with a surface layer made of a metal having a higher refractive index than boehmite and having a thickness that transmits light. It is a forgery prevention material characterized by the above.
Thus, according to the color to be obtained, the refractive index can be changed by setting the thickness of the boehmite layer provided on the surface of the aluminum base material and further providing the metal layer having a higher refractive index than boehmite. Depending on the thickness of the surface layer made of boehmite, a specific color is obtained. By specifying this color, a desired anti-counterfeiting material can be obtained.
[0005]
The invention according to claim 2 is the anti-counterfeiting material according to claim 1, wherein the aluminum base material is an aluminum deposited film.
Thus, by making an aluminum base material into an aluminum vapor deposition film, it can be set as the anti-counterfeiting decoration material which has a softness | flexibility, and can be applied to various uses.
[0006]
The invention according to claim 3 is the anti-counterfeiting material according to claim 1 or 2, wherein the surface layer is platinum.
Thus, by using platinum as a metal having a higher refractive index than boehmite, a forgery prevention material having a stable metallic luster can be obtained.
[0007]
The invention according to claim 4 is the forgery prevention material according to any one of claims 1 to 3, wherein a protective layer is provided on the surface layer.
Thus, by providing a transparent protective layer on the surface layer, the surface layer can be protected, and a configuration such as coloring can be further added.
[0008]
The invention according to claim 5 is a counterfeit according to any one of claims 1 to 4, wherein a plurality of aluminum base materials are used in which the thickness of the boehmite layer provided on the aluminum base material is changed. It is a prevention material.
As described above, by using a plurality of aluminum base materials having different boehmite layer thicknesses, portions with different coloring can be revealed, and the anti-counterfeiting property can be further increased.
[0009]
The invention according to claim 6 is the anti-counterfeiting material according to any one of claims 1 to 5, wherein the aluminum base material has a specific shape such as a figure, a letter, or a number.
Thus, forgery prevention property can be increased by making coloring into a specific shape such as a figure partially.
Further, by using a plurality of aluminum base materials with different boehmite layer thicknesses, not only the specific shape but also different colored portions can appear, and the anti-counterfeiting property can be further increased.
[0010]
Invention of Claim 6 provided the printing layer of specific shapes, such as a figure, a character, and a number, on the said aluminum base material, The forgery prevention in any one of Claim 1 thru | or 5 characterized by the above-mentioned. Material.
Thus, forgery prevention can be increased by partially providing a printed layer such as a figure on the surface layer.
[0011]
DETAILED DESCRIPTION OF THE INVENTION
FIG. 1 is a cutaway explanatory view showing an embodiment of the decorative material of the present invention, and FIG. 2 is a cross-sectional view taken along line AA in FIG.
In the figure, 1 indicates an aluminum substrate, 2 indicates a boehmite layer, and 3 indicates a surface layer.
[0012]
Here, the aluminum substrate 1 may be any one of an aluminum plate, an aluminum foil, or a composite material combined with another material such as paper or a plastic material instead of the aluminum material alone.
Moreover, if an aluminum vapor deposition film is used, it can be easily combined with other materials and has excellent flexibility, so that it can be used as a flexible anti-counterfeiting material.
[0013]
The boehmite layer 2 is formed by performing a boehmite treatment on the aluminum surface of the aluminum substrate 1. The thickness of the boehmite layer can be changed depending on the degree of the boehmite treatment.
Then, according to the color to be obtained, a boehmite treatment is performed to form a boehmite layer having a predetermined thickness.
[0014]
The surface layer 3 is made of a metal having a higher refractive index than the boehmite of the boehmite layer described above, and is provided in a thickness that allows light to pass through.
Here, examples of the metal having a higher refractive index than boehmite include platinum and copper, but platinum that is stable without oxidation is preferable. Further, the thickness through which the light is transmitted is preferably in the range of 10 nm to 20 nm.
[0015]
Then, as shown in FIG. 3, a transparent protective layer 4 may be provided on the surface layer 3. This protective layer 4 protects the surface layer 3 and prevents scratches, cracks, corrosion and discoloration from occurring due to external forces and environmental influences.
Moreover, forgery prevention property can be improved more by coloring this protective layer 4.
[0016]
The aforementioned anti-counterfeiting material may be not only a single material that specifies the thickness of the boehmite layer, but also may be an anti-counterfeiting material that uses a plurality of materials with different boehmite layer thicknesses as shown in FIG.
As described above, by using a plurality of materials, portions with different coloring are generated, and the anti-counterfeiting property can be further improved.
[0017]
Moreover, it is good also as a structure which provided the printing layer, such as a character and a figure, on the surface layer 3. FIG.
Thus, by providing a printing layer on a material in a specific colored state, portions with different coloring are produced, and the anti-counterfeiting property can be further improved.
[0018]
Next, specific examples of the present invention will be described.
An aluminum foil having a thickness of 40 μm was used as the aluminum base, and the surface of the aluminum foil was subjected to a boehmite treatment to provide a boehmite layer. Next, platinum was sputtered on the boehmite layer to form a surface layer. The sputtering conditions at this time were 30 mA, 30 seconds, and the thickness was 12 nm.
And the forgery prevention material which changed the said boehmite processing time and each changed the coloring degree was produced. The results are as shown in Table 1.
[0019]
[Table 1]
Figure 0004779259
[0020]
As is clear from Table 1, the degree of coloring changes when the thickness of the boehmite layer provided on the surface of the aluminum substrate changes. Therefore, when producing a desired anti-counterfeiting material, the boehmite treatment time may be specified.
[0021]
As described above, the anti-counterfeit material of the present invention has the above-described configuration. Therefore, the anti-counterfeit material can be a material with a desired degree of coloration that changes the thickness of the boehmite layer provided on the surface of the aluminum base material. By attaching to various bases as a forgery prevention material, it can be set as the equipment which can prevent forgery.
[0022]
【The invention's effect】
Since the anti-counterfeiting material of the present invention has the above-described configuration, the thickness of the boehmite layer provided on the surface of the aluminum base material can be changed to a desired degree of coloring. Can do.
[0023]
[Brief description of the drawings]
FIG. 1 is a broken explanatory view showing an embodiment of the present invention.
FIG. 2 is a cross-sectional view taken along line AA in FIG.
FIG. 3 is an explanatory view showing another embodiment of the present invention.
FIG. 4 is an explanatory view showing another embodiment of the present invention.
FIG. 5 is an explanatory view showing another embodiment of the present invention.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Aluminum base material 2 ... Boehmite layer 3 ... Surface layer 4 ... Protective layer 6 ... Printing layer

Claims (8)

表面に所望の厚みのベーマイト層を有するアルミニウム基材の、前記ベーマイト層上に、ベーマイトより屈折率が大きい金属からなり、光線を透過する厚みの表面層を設けたことを特徴とする偽造防止材料。An anti-counterfeiting material comprising an aluminum base material having a boehmite layer having a desired thickness on the surface, and a surface layer made of a metal having a refractive index larger than that of boehmite and having a thickness that transmits light, on the boehmite layer. . 前記アルミニウム基材が、アルミニウム蒸着フィルムであることを特徴とする、請求項１記載の偽造防止材料。The anti-counterfeiting material according to claim 1, wherein the aluminum base material is an aluminum vapor deposition film. 前記表面層が、白金であることを特徴とする、請求項１、または２記載の偽造防止材料。The anti-counterfeiting material according to claim 1, wherein the surface layer is platinum. 前記表面層上に透明保護層を設けたことを特徴とする、請求項１ないし３のいずれかに記載の偽造防止材料。The anti-counterfeiting material according to any one of claims 1 to 3, wherein a transparent protective layer is provided on the surface layer. 前記アルミニウム基材に設けるベーマイト層の厚みを変化させた、複数のアルミニウム基材を用いたことを特徴とする、請求項１ないし４のいずれかに記載の偽造防止材料。The anti-counterfeiting material according to any one of claims 1 to 4, wherein a plurality of aluminum base materials in which a thickness of a boehmite layer provided on the aluminum base material is changed are used. 前記アルミニウム基材が、図形、文字、数字等の特定形状としたことを特徴とする、請求項１ないし５のいずれかに記載の偽造防止材料。The anti-counterfeiting material according to any one of claims 1 to 5, wherein the aluminum base material has a specific shape such as a figure, a letter, or a number. 前記アルミニウム基材上に、図形、文字、数字等の特定形状の印刷層を設けたことを特徴とする、請求項１ないし５のいずれかに記載の偽造防止材料。The forgery prevention material according to any one of claims 1 to 5, wherein a printed layer having a specific shape such as a figure, a letter, or a number is provided on the aluminum substrate. 請求項１ないし請求項６のいずれかの偽造防止材料を基体に組み込んだことを特徴とする、偽造防止処理を施した備品。An anti-counterfeiting equipment comprising the anti-counterfeiting material according to claim 1 incorporated in a base.
JP2001248760A 2001-08-20 2001-08-20 Anti-counterfeiting materials and fixtures with anti-counterfeiting treatment Expired - Fee Related JP4779259B2 (en)

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JP4275430B2 (en) * 2003-03-07 2009-06-10 日本写真印刷株式会社 Decorative sheet and manufacturing method thereof

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JPS58167797A (en) * 1982-03-29 1983-10-04 Fujisash Co Formation of pattern on surface of aluminum or aluminum alloy
JPH1158581A (en) * 1997-08-25 1999-03-02 Toppan Printing Co Ltd Laminated material for preventing forgery
JP3710963B2 (en) * 1999-08-25 2005-10-26 大日本印刷株式会社 Magnetic recording medium

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