JP2010167612A - Information recording medium and method of manufacturing the same - Google Patents
Information recording medium and method of manufacturing the same Download PDFInfo
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- JP2010167612A JP2010167612A JP2009010667A JP2009010667A JP2010167612A JP 2010167612 A JP2010167612 A JP 2010167612A JP 2009010667 A JP2009010667 A JP 2009010667A JP 2009010667 A JP2009010667 A JP 2009010667A JP 2010167612 A JP2010167612 A JP 2010167612A
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- recording medium
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Abstract
Description
本発明は、情報記録媒体と、その製造方法とに関する。 The present invention relates to an information recording medium and a manufacturing method thereof.
従来からレーザービームによりカード基材に、一つ又は二つ以上の特定の傾斜角度で多数の微細な穿孔を、特定のパターンで配列して情報を付与するように、貫通して形成することが知られている（例えば特許文献１及び２参照）。 Conventionally, a laser beam can be formed in a card substrate by penetrating a large number of fine perforations at one or more specific inclination angles so as to give information by arranging them in a specific pattern. Known (for example, see Patent Documents 1 and 2).
しかしながら、レーザー装置は高価だが一般に販売されているため、カード基材を入手すれば、容易に偽造できる。 However, since the laser device is expensive but generally sold, it can be easily counterfeited if a card base material is obtained.
また従来から、穿孔が埋められるように、発光材料を付与することも知られている（例えば特許文献１及び２参照）。 Conventionally, it is also known to apply a luminescent material so that the perforations are filled (see, for example, Patent Documents 1 and 2).
しかしながら、この発光材料は、発光材料を含むインキで印刷されるか又は発光材料を含むフィルムでコートされることにより付与されるため、カード基材の一面に発光材料を含んだ層が存在するので、どのような発光材料を用いているのかが容易に知られ、偽造される恐れがある。 However, since this luminescent material is applied by printing with an ink containing a luminescent material or coating with a film containing a luminescent material, there is a layer containing the luminescent material on one side of the card substrate. What kind of luminescent material is used is easily known and may be forged.
本発明は斯かる背景技術に鑑みてなされたもので、偽造が極めて困難な情報記録媒体を提供することを課題とする。 The present invention has been made in view of such background art, and an object thereof is to provide an information recording medium that is extremely difficult to forge.
本発明において上記課題を解決するために、まず請求項１の発明では、積層体に形成された複数の微細な穴部により情報を記録した情報記録媒体であって、
該積層体は、発光材料を含む中間層を有し、
該微細な穴部は、該積層体表面から斜めに形成されてなり、少なくとも該中間層まで達していることを特徴とする情報記録媒体としたものである。
In order to solve the above problems in the present invention, first, in the invention of claim 1, an information recording medium in which information is recorded by a plurality of fine holes formed in a laminate,
The laminate has an intermediate layer containing a light emitting material,
The fine hole portion is formed obliquely from the surface of the laminated body, and is an information recording medium characterized in that it reaches at least the intermediate layer.
また請求項２の発明では、前記微細な穴部は、前記積層体を貫通していることを特徴とする請求項１記載の情報記録媒体としたものである。 According to a second aspect of the present invention, there is provided the information recording medium according to the first aspect, wherein the fine hole portion penetrates the laminated body.
また請求項３の発明では、積層体に形成された複数の微細な穴部により情報を記録した情報記録媒体の製造方法であって、
発光材料を含む中間層を有する積層体の表面に対して斜めにレーザーを照射して該微細な穴部を形成することを特徴とする情報記録媒体の製造方法としたものである。
The invention of claim 3 is a method of manufacturing an information recording medium in which information is recorded by a plurality of fine holes formed in a laminate,
An information recording medium manufacturing method is characterized in that the fine hole is formed by irradiating a laser beam obliquely to the surface of a laminate having an intermediate layer containing a light emitting material.
請求項１の発明は、発光材料を含む中間層を有すること自体が極めて分かり難いので、偽造することが極めて困難であるという効果がある。また請求項１の発明は、微細な穴部が斜めに形成されているので、微細な穴部により記録された情報は、ただ、真上から見ただけでは分からず、斜めからライトを当てて透かして見たり、斜めにして透かして見ると、その情報が目で確認できるという効果がある。また請求項１の発明は、正面に、ランプで、発光材料を励起して発光させる照射光を当てると、この照明光が微細な穴部を通過して中間層に達することにより、中間層に含まれる発光材料が発光し、この発光が微細な穴部を通過して正面から見えるために、微細な穴部により記録された情報を目で確認できるという効果がある。 The invention of claim 1 has an effect that it is extremely difficult to forge because it is very difficult to understand that the intermediate layer containing the light emitting material itself is provided. Further, in the invention of claim 1, since the fine hole portion is formed obliquely, the information recorded by the fine hole portion is not understood only by looking from directly above, and the light is applied obliquely. When viewed through a watermark or obliquely, the information can be visually confirmed. In the invention of claim 1, when irradiation light that excites a light emitting material with a lamp to emit light is applied to the front surface, the illumination light passes through a fine hole and reaches the intermediate layer, thereby Since the light emitting material contained emits light and this light emission passes through the fine hole and is visible from the front, there is an effect that the information recorded by the fine hole can be visually confirmed.
また請求項２の発明は、微細な穴部が貫通しているので、斜めにして透かして見ると、貫通していない場合よりも、微細な穴部により記録された情報を確認しやすいという効果がある。 In the invention of claim 2, since the fine hole portion penetrates, the information recorded by the fine hole portion is easier to confirm when viewed obliquely through the watermark than when not penetrating. There is.
また請求項３の発明は、請求項２の発明を容易に製造できるという効果がある。 The invention of claim 3 has an effect that the invention of claim 2 can be easily manufactured.
以下に、本発明の最良の一実施形態を説明する。 The best embodiment of the present invention will be described below.
本発明の情報記録媒体は、積層体に形成された複数の微細な穴部により顔写真などの画像の情報を記録したものである。積層体の厚みは、０．２ｍｍ以上が好ましい。 The information recording medium of the present invention records information of an image such as a face photograph through a plurality of fine holes formed in the laminate. The thickness of the laminate is preferably 0.2 mm or more.
積層体は、少なくとも発光材料を含む中間層を有する。例えば、図１に示すように、上層１と中間層２と下層３とからなる３層構造であっても良い。 The stacked body has an intermediate layer including at least a light emitting material. For example, as shown in FIG. 1, a three-layer structure including an upper layer 1, an intermediate layer 2, and a lower layer 3 may be used.
また発光材料を含む中間層は、可視光では見えず赤外光又は紫外光を照射することにより励起して発光する顔料もしくは染料のインク（不可視インク）により形成されたものであると、一般に、積層体に中間層があることが分からないし、たとえ分かっても、この積層体は、通常、流通するものではないので入手できず、偽造防止の点で好ましい。 The intermediate layer containing a luminescent material is generally formed of a pigment or dye ink (invisible ink) that is not visible with visible light but is excited by irradiation with infrared light or ultraviolet light to emit light (invisible ink). It is not known that there is an intermediate layer in the laminate, and even if it is known, this laminate is not usually distributed and therefore cannot be obtained and is preferable in terms of preventing counterfeiting.
微細な穴部は、積層体表面から斜めに形成されてなり、少なくとも該中間層まで達しており、積層体を貫通しても良い。図２に、積層体表面から、矢印４に示す斜め方向に貫通させた微細な穴部の例を示す。 The fine hole portion is formed obliquely from the surface of the laminate, reaches at least the intermediate layer, and may penetrate the laminate. In FIG. 2, the example of the fine hole part penetrated in the diagonal direction shown by the arrow 4 from the laminated body surface is shown.
微細な穴部の直径は、１０μｍ〜１０００μｍが好ましい。また、微細な穴部の積層体表面に対する角度は、１５°〜８０°が好ましい。 The diameter of the fine hole is preferably 10 μm to 1000 μm. Further, the angle of the fine hole portion with respect to the surface of the laminate is preferably 15 ° to 80 °.
微細な穴部は、貫通する場合には、積層体の表面に対して斜めに、例えばＣＯ２などのレーザーを照射することにより形成することができ、貫通しない場合には、例えば、ＹＡＧレーザやＹＶＯ４レーザ或いは針のようなものを使用することで形成することができる。貫通する方が、穴の深さの制御が要らないので容易に形成できる。 The fine hole can be formed by irradiating a laser such as CO 2 obliquely with respect to the surface of the laminated body when penetrating, and when not penetrating, for example, a YAG laser or It can be formed by using something like a YVO 4 laser or a needle. The through hole does not require control of the depth of the hole and can be formed easily.
微細な穴部により記録された顔写真などの画像の情報は、ただ、本発明の情報記録媒体を真上から見ただけでは分からず、斜めからライトを当てて透かして見たり、斜めにして透かして見ると、その情報が目で確認できる。貫通しない場合でも斜めから透かした場合、その情報を確認できるが、貫通している方がより確認しやすい。 Image information such as a face photograph recorded by a minute hole is not understood just by looking at the information recording medium of the present invention from directly above, and it is viewed through the light with a light applied obliquely or obliquely. If you look through it, you can see the information visually. Even if it does not penetrate, if it is watermarked from an angle, the information can be confirmed, but it is easier to confirm if it is penetrated.
また図３に示すように、本発明の情報記録媒体の正面に、ランプで、発光材料を励起して発光させる照射光５を当てると、この照明光５が微細な穴部を通過して中間層２に達することにより、中間層２に含まれる発光材料が発光し、この発光６が微細な穴部を通過して正面から見えるために、微細な穴部により記録された顔写真などの画像の情報を目で確認できる。 As shown in FIG. 3, when the irradiation light 5 that excites the light emitting material with a lamp and emits light is applied to the front of the information recording medium of the present invention, the illumination light 5 passes through a minute hole and is intermediate. By reaching the layer 2, the light emitting material contained in the intermediate layer 2 emits light, and since this light emission 6 passes through the fine hole and is seen from the front, an image such as a face photograph recorded by the fine hole is obtained. The information of can be confirmed visually.
本発明の情報記録媒体は、例えば、パスポートなどのページ、ＩＤカードなどに利用できる。 The information recording medium of the present invention can be used for pages such as passports, ID cards, and the like.
１…上層
２…中間層
３…下層
４…矢印
５…照射光
６…発光
DESCRIPTION OF SYMBOLS 1 ... Upper layer 2 ... Intermediate layer 3 ... Lower layer 4 ... Arrow 5 ... Irradiation light 6 ... Light emission
Claims (3)
該積層体は、発光材料を含む中間層を有し、
該微細な穴部は、該積層体表面から斜めに形成されてなり、少なくとも該中間層まで達していることを特徴とする情報記録媒体。 An information recording medium in which information is recorded by a plurality of fine holes formed in a laminate,
The laminate has an intermediate layer containing a light emitting material,
The fine hole portion is formed obliquely from the surface of the laminated body and reaches at least the intermediate layer.
発光材料を含む中間層を有する積層体の表面に対して斜めにレーザーを照射して該微細な穴部を形成することを特徴とする情報記録媒体の製造方法。 A method for manufacturing an information recording medium in which information is recorded by a plurality of fine holes formed in a laminate,
A method for manufacturing an information recording medium, wherein the fine hole is formed by obliquely irradiating a surface of a laminate having an intermediate layer containing a light emitting material with a laser.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009010667A JP2010167612A (en) | 2009-01-21 | 2009-01-21 | Information recording medium and method of manufacturing the same |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2009010667A JP2010167612A (en) | 2009-01-21 | 2009-01-21 | Information recording medium and method of manufacturing the same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2010167612A true JP2010167612A (en) | 2010-08-05 |
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ID=42700213
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2009010667A Pending JP2010167612A (en) | 2009-01-21 | 2009-01-21 | Information recording medium and method of manufacturing the same |
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| JP (1) | JP2010167612A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012236291A (en) * | 2011-05-10 | 2012-12-06 | Toppan Printing Co Ltd | Image forming body |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002535169A (en) * | 1999-01-21 | 2002-10-22 | インダストリアル・オートメイション・インテグレイターズ・（アイエイアイ）・ベスローテン・フェンノートシャップ | Confidential documents with perforated patterns |
| JP2004223867A (en) * | 2003-01-23 | 2004-08-12 | National Printing Bureau | Laminate for use in discrimination of genuineness |
| JP2006224476A (en) * | 2005-02-18 | 2006-08-31 | National Printing Bureau | Genuineness determinable formed object |
-
2009
- 2009-01-21 JP JP2009010667A patent/JP2010167612A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002535169A (en) * | 1999-01-21 | 2002-10-22 | インダストリアル・オートメイション・インテグレイターズ・（アイエイアイ）・ベスローテン・フェンノートシャップ | Confidential documents with perforated patterns |
| JP2004223867A (en) * | 2003-01-23 | 2004-08-12 | National Printing Bureau | Laminate for use in discrimination of genuineness |
| JP2006224476A (en) * | 2005-02-18 | 2006-08-31 | National Printing Bureau | Genuineness determinable formed object |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2012236291A (en) * | 2011-05-10 | 2012-12-06 | Toppan Printing Co Ltd | Image forming body |
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