JP2019188756A - Forgery-preventing printed matter - Google Patents
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- JP2019188756A JP2019188756A JP2018086793A JP2018086793A JP2019188756A JP 2019188756 A JP2019188756 A JP 2019188756A JP 2018086793 A JP2018086793 A JP 2018086793A JP 2018086793 A JP2018086793 A JP 2018086793A JP 2019188756 A JP2019188756 A JP 2019188756A
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- 239000000976 ink Substances 0.000 claims abstract description 72
- 230000003595 spectral effect Effects 0.000 claims abstract description 14
- 238000005286 illumination Methods 0.000 claims description 5
- 235000019557 luminance Nutrition 0.000 claims description 3
- 238000012795 verification Methods 0.000 description 13
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 10
- 238000000034 method Methods 0.000 description 8
- 239000003973 paint Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 4
- 230000002265 prevention Effects 0.000 description 4
- 239000003086 colorant Substances 0.000 description 3
- 238000001514 detection method Methods 0.000 description 3
- 238000007726 management method Methods 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 230000000007 visual effect Effects 0.000 description 3
- 229910052693 Europium Inorganic materials 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 229910052771 Terbium Inorganic materials 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
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- 229920005989 resin Polymers 0.000 description 2
- 230000002441 reversible effect Effects 0.000 description 2
- 230000035945 sensitivity Effects 0.000 description 2
- GCZWLZBNDSJSQF-UHFFFAOYSA-N 2-isothiocyanatohexane Chemical compound CCCCC(C)N=C=S GCZWLZBNDSJSQF-UHFFFAOYSA-N 0.000 description 1
- 229910001148 Al-Li alloy Inorganic materials 0.000 description 1
- 229910020639 Co-Al Inorganic materials 0.000 description 1
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 229910020675 Co—Al Inorganic materials 0.000 description 1
- 229910016507 CuCo Inorganic materials 0.000 description 1
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- 235000000177 Indigofera tinctoria Nutrition 0.000 description 1
- 229910013107 LiBi Inorganic materials 0.000 description 1
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- 239000006229 carbon black Substances 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
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- COHYTHOBJLSHDF-UHFFFAOYSA-N indigo powder Natural products N1C2=CC=CC=C2C(=O)C1=C1C(=O)C2=CC=CC=C2N1 COHYTHOBJLSHDF-UHFFFAOYSA-N 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
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Abstract
Description
本発明は、セキュリティ性の向上した印刷物に関する。 The present invention relates to a printed matter with improved security.
模倣品や横流し品の流通は世界的に拡大しており、その被害額は増加の一途を辿っている。模倣品や横流し品が流通し続けることで、真正品（正規品）の売り上げ減少やブランド価値の低下を招く恐れがある。 The distribution of counterfeit products and cross-flow products is expanding worldwide, and the amount of damage continues to increase. If counterfeit products and cross-flow products continue to circulate, there is a risk that the sales of genuine products (genuine products) will decrease and the brand value may decrease.
真正品（正規品）と偽造品の真贋判定手段を付与する対策として、「ホログラム」「ＩＣタグ」「セキュリティマーク（印刷）」などを活用した各種の認証手段（以下、セキュリティマークを「真偽判定コード」と称する）がこれまでに提案〜実行されている。 As a measure to add authenticity (genuine) and counterfeit authenticity determination means, various authentication means using “hologram”, “IC tag”, “security mark (print)”, etc. Has been proposed and executed so far.
認証手段自体が偽造される事態も生じるに到っており、真偽判定コードによる手法では、その存在を（悪意で偽造を図る者（以下、偽造犯と称する）に）類推させないための対策も提案されており、「目視では識別不可能な特殊インキを使用する」などにより、真偽判定コードを隠蔽する取組みも行なわれている。 There has also been a situation in which the authentication means itself is counterfeited, and the method based on the authenticity determination code also takes measures to prevent its existence (to a person who attempts to counterfeit maliciously (hereinafter referred to as a counterfeiter)) by analogy. Proposals have also been made to conceal the authenticity determination code by “using special ink that cannot be identified visually”.
また、高度な画像処理により物体表面のパターンを識別する一意識別技術も確立されており、意図的に製品表面に認証手段を付与するのではなく、製造工程で生成された意図的に再現することが難しい物体固有のランダムパターンを持った画像全体を高精度で領域識別する技術も応用されている。（特許文献１，非特許文献１参照）
特許文献１，２の手法では、製品自身が持つランダムパターンを物体固有のＩＤとして活用できるため、認証手段の存在を偽造犯に類推されることが一層困難である。
In addition, a unique identification technology that identifies the pattern of the object surface by advanced image processing has been established, and it is intentionally reproduced in the manufacturing process rather than intentionally giving an authentication means to the product surface. A technique for identifying a region of an entire image having a random pattern unique to an object with high accuracy is also applied. (See Patent Document 1 and Non-Patent Document 1)
In the methods of Patent Documents 1 and 2, since the random pattern of the product itself can be used as the ID unique to the object, it is more difficult to analogize the existence of the authentication means as a forgery.
本発明の目的は、従来は別々である「識別コード」と「真偽判定コード」を同一箇所である単独のコード内に共存させ、「真偽判定コード」は一見して存在を（偽造犯および一般ユーザーに）識別されることなく「識別コード」内に潜在した構成の新規なセキュリティ・ツールを提供することにある。 An object of the present invention is to make an “identification code” and a “authentication determination code”, which are conventionally separate, coexist in a single code at the same location, and the “authentication determination code” appears at first glance (forged crime). And to provide a new security tool with a hidden configuration within the "identification code" without being identified).
本発明による偽造防止用印刷物は、照射光に対する分光反射特性がそれぞれ異なる複数種類のインキ，温度条件に応じて発色特性がそれぞれ異なる複数種類のインキの何れかを
用いて構成される識別コードを有する偽造防止用印刷物であって、
識別コードを印刷するインキと、識別コード内に混在させた真偽判定コードを印刷するインキの種類が異なることを特徴とする。
The forgery-preventing printed matter according to the present invention has an identification code configured using any of a plurality of types of inks having different spectral reflection characteristics with respect to irradiation light and a plurality of types of inks having different color development characteristics according to temperature conditions. Forgery prevention printed matter,
The ink for printing the identification code is different from the ink for printing the authenticity determination code mixed in the identification code.
照射光に対する分光反射特性がそれぞれ異なる複数種類のインキとしては、以下の組み合わせが例示される。
（１）可視域波長光の照射により視覚可能なインキと、可視域外波長光の照射により視覚
可能なインキである場合。
（２）同一条件の照明光の照射により視覚される色相は共通であるが、反射輝度が異なる
インキである場合。
The following combinations are exemplified as the plurality of types of ink having different spectral reflection characteristics with respect to irradiation light.
(1) When the ink is visible by irradiation with visible wavelength light and the ink is visible by irradiation with light outside the visible wavelength.
(2) In the case of inks that have the same hue, but have different reflection luminances, as a result of irradiation with illumination light under the same conditions.
識別コード内に混在させた真偽判定コードは、物体固有のＩＤとして利用可能な「特徴点データ」を構成することもあるが、主として真偽判定コードは識別コードの読み取りに影響を及ぼさない別コードであり、偽造あるいは複写による非正規品の識別コードに対しての真偽判定手段となる。本発明においては、真偽判定コードは識別コードの様な機器による情報読み取りを前提とした認証コードの形態である必要はなく、絵柄やパターンなど目視による認識が可能な形態でも良い。 The authenticity determination code mixed in the identification code may constitute “feature point data” that can be used as an object-specific ID. However, the authenticity determination code is mainly different from that that does not affect the reading of the identification code. This is a code, and serves as a means for determining the authenticity of a non-genuine product identification code by forgery or copying. In the present invention, the authenticity determination code does not have to be in the form of an authentication code based on information reading by a device such as an identification code, but may be in a form that allows visual recognition such as a pattern or pattern.
本発明による効果として、以下が挙げられる。
（１）真偽判定コードが識別コード内に隠蔽されており、双方のコードを別々に形成する設置スペースを要さないため、本願発明の構成を認識していない者にとっては、真偽判定コードの存在を類推することが困難である。
（２）真偽判定コードの存在を推測して、識別コード全体のコピー（複写）を行なっても、複写光源に反応するタイプのインキでないと、真偽判定コードの情報を入手することが出来ない。また、複写光源に反応するタイプのインキである場合、複写物（＝非正規品）であるメッセージ表示がされることにより、偽造行為が明らかになる。
（３）製品全体を局所領域に分割して、製造工程（あるいは、印刷工程）で意図せず生成されたランダムパターンを「特徴点」として抽出した上で、僅かな個体差を基準データとの照合により判別するのではなく、意図的に潜在させておき、予め形成箇所が把握される（肉眼では不可視な）真偽判定コードを照合するため、検証プロセスは簡便である。
（４）識別コードと真偽判定コードを形成するインキの特性が異なるため、認証あるいは検証プロセスではそれぞれの情報読み取りの際、他方にノイズとして影響することがなく、検証精度は向上する。
The effects of the present invention include the following.
(1) Since the authenticity determination code is concealed in the identification code and does not require an installation space for separately forming both codes, the authenticity determination code is for those who are not aware of the configuration of the present invention. It is difficult to analogize the existence of
(2) Even if the authenticity determination code is inferred and the entire identification code is copied, the information of the authenticity determination code can be obtained if the ink does not respond to the copying light source. Absent. Further, in the case of ink of a type that responds to a copying light source, a message indicating that the copy is a copy (= non-regular product) is displayed, so that the counterfeit action becomes clear.
(3) Divide the entire product into local areas, extract random patterns generated unintentionally in the manufacturing process (or printing process) as "feature points", The verification process is simple because it is not discriminated by collation, but intentionally hidden and collated with a true / false determination code (which is invisible to the naked eye) whose formation location is grasped in advance.
(4) Since the characteristics of the ink forming the identification code and the authenticity determination code are different, the authentication or verification process does not affect the other when reading information, and the verification accuracy is improved.
以下、本発明の実施形態について説明するが、本発明は以下の説明・図示によって限定されるものではない。 Hereinafter, although embodiment of this invention is described, this invention is not limited by the following description and illustration.
＜偽造防止用印刷物＞
識別コードとしてＱＲコード（登録商標）を採用した実施形態について説明する。
<Forgery prevention printed matter>
An embodiment in which a QR code (registered trademark) is adopted as an identification code will be described.
尚、以降の説明においては、識別コードを印刷する「通常の」インキに対して、真偽判定コードを形成する各種のインキを包括して「特殊インキ」と称する。 In the following description, various inks forming a true / false determination code are collectively referred to as “special ink” with respect to “normal” ink for printing an identification code.
図１（ａ）は、偽造防止用印刷物１０に形成する識別コード１１の一例である。一般に、反射率が高い下地色と対照的な低い反射率を持つ黒色などの暗色インクにてコードを印字し、コードリーダからの照射光によるスキャンにて記録情報が読み取られる。図１（ａ）では、特殊インキにより形成した真偽判定コードが、特殊インキが機能発揮していないため、認識できない状態にある。 FIG. 1A is an example of an identification code 11 formed on the anti-counterfeit printed matter 10. In general, a code is printed with dark color ink such as black having a low reflectance contrasting with a background color having a high reflectance, and recorded information is read by scanning with irradiation light from a code reader. In FIG. 1A, the authenticity determination code formed with the special ink is in a state where it cannot be recognized because the special ink does not perform its function.
図１（ｂ）は、識別コード内に混在させた真偽判定コード（特徴点データ）１２が、特殊インキの機能発揮に応じて浮かび上がり、認識可能となった状態の一例を示す。 FIG. 1B shows an example of a state in which the authenticity determination code (feature point data) 12 mixed in the identification code emerges according to the function of the special ink and can be recognized.
例示される真偽判定コードは、識別コード上で分散されて配置される「ドットパターン」である。マトリクス上に配置されてなるドット配列に応じた情報コードを表すタイプであるが、特徴点からなる真偽判定コードは非マトリクスな他タイプで情報量の少ないもの（例えば、真＝○，偽＝×のみ）であっても良い。 The illustrated authenticity determination code is a “dot pattern” distributed on the identification code. This type represents an information code corresponding to the dot arrangement arranged on the matrix, but the true / false determination code consisting of feature points is a non-matrix type with a small amount of information (for example, true = ◯, false = X only).
図１（ｂ）では、識別コード上に真偽判定コードが浮かび上がり、双方のコードが同時に目視できるかの様に図示されているが、識別コードと真偽判定コードが互いに邪魔し合わずに双方の情報読み取り（識別）が独立して可能である必要がある。 In FIG. 1 (b), the authenticity determination code emerges on the identification code, and both codes can be seen at the same time. However, the identification code and the authenticity determination code do not interfere with each other. Both information reading (identification) needs to be possible independently.
特殊インキの種類が、例えば、コードリーダや撮像解析装置などの検証機器からの照射光の「波長」に対しての分光反射特性，反射輝度，発光特性などの相違が利用されている場合、検証機器にて検出される情報は、図１（ａ）に示される識別コード，図１（ｃ）に示される真偽判定コードは分離して検出可能である必要がある。 Verification is performed when the type of special ink uses, for example, spectral reflection characteristics, reflection luminance, and light emission characteristics with respect to the "wavelength" of irradiation light from a verification device such as a code reader or imaging analyzer. The information detected by the device needs to be able to be detected separately from the identification code shown in FIG. 1A and the authenticity determination code shown in FIG.
照射光の「波長」に対しての特性が異なる各種インキと使用例を以下に説明する。 Various inks having different characteristics with respect to the “wavelength” of irradiation light and usage examples will be described below.
＜実施形態１＞
通常インキとして、カーボンブラック顔料を主成分とした墨インキを用い、特殊インキとして、視感度の低い部分にて通常使用されているプロセスインキの黄・藍・紅の単独色もしくは混合色と異なる分光波形を有し、墨インキと組み合わせて印刷することにより、太陽光，蛍光灯，白熱電灯などの自然光の下では、同一色に見えるが、所定の分光エネルギー分布を有する光源下では異なる色相，明度，彩度で視認される性質を示す特殊インキである。具体的には、特開昭５４−１２０００９号公報，特開昭５４−１２７７０９号公報，特開昭５４−１５９０００４号公報および特開昭５５−５１０号公報に記載されているものである。色料としてはＴｉ−Ｎｉ−Ｃｏ−Ｌｉ系グリーン，Ｃｏ−Ａｌ−Ｃｒ系グリーン，Ｃｏ−Ａｌ系ブルー，Ｔｉ−Ｃｏ−Ａｌ−Ｌｉ系ブルー等を用いることができる。
<Embodiment 1>
Spectral ink that is mainly composed of carbon black pigment as a normal ink and a special ink that is different from the single or mixed colors of yellow, indigo and red, which are usually used in low visibility areas Printed in combination with black ink with a waveform, it looks the same color under natural light such as sunlight, fluorescent light, incandescent light, etc., but different hue and lightness under a light source with a predetermined spectral energy distribution , Special ink showing the property of being visually recognized by saturation. Specifically, those described in JP-A-54-120009, JP-A-54-127709, JP-A-54-1590004, and JP-A-55-510. As the colorant, Ti-Ni-Co-Li green, Co-Al-Cr green, Co-Al blue, Ti-Co-Al-Li blue, or the like can be used.
情報読み取りにあたっては、所定の分光エネルギー分布を有する照明光源を搭載した検証機器が用いられ、特殊インキにて識別コード内に潜在させた真偽判定コードのみを選択的に視認あるいは検出することができる。照明光源としては、白色光源に上記の該当する色料における高い分光反射率を有する視感度の低い波長域のみを透過する性質のフィルタ（または視感度の高い波長域を遮断するフィルタ）を適用することにより得られる。照射波長は任意に選択することができる。なお、上記視感度の低い波長域は、可視光領域と赤外光領域との境界または可視光領域と紫外光領域との境界の波長域で、具体的には４００〜４５０ｎｍ，６５０〜７００ｎｍ付近の波長域であり、また上記視感度の高い波長域は、４５０〜６５０ｎｍの範囲の波長域である。 When reading information, a verification device equipped with an illumination light source having a predetermined spectral energy distribution is used, and only the authenticity determination code hidden in the identification code can be selectively visually recognized or detected with special ink. . As the illumination light source, a filter having a property of transmitting only a wavelength range with low spectral sensitivity having high spectral reflectance in the above-described colorant (or a filter for blocking a wavelength range with high visual sensitivity) is applied to the white light source. Can be obtained. The irradiation wavelength can be arbitrarily selected. The wavelength range with low visibility is the wavelength range between the visible light region and the infrared light region or the boundary between the visible light region and the ultraviolet light region, specifically 400 to 450 nm, around 650 to 700 nm. In addition, the wavelength range with high visibility is a wavelength range of 450 to 650 nm.
＜実施形態２＞
自然光の下では目視では認識しにくい色の特殊インキであり、無機もしくは有機蛍光体を含む蛍光インキである。インキ中に混入した蛍光体が紫外線の照射により蛍光発色し、印刷インキの色調が変化する特性がある。ビヒクル樹脂中に無機蛍光体を含有させる場合
は、屈折率がビヒクル樹脂と同一または近似するもので、無色透明あるいは白色が好ましい。具体的には、特開昭５４−１３７９９号公報，特開昭５４−１３７９８号公報に記載されている材料を用いることができる。
<Embodiment 2>
It is a special ink of a color that is difficult to recognize visually under natural light, and is a fluorescent ink containing an inorganic or organic phosphor. There is a characteristic that the phosphor mixed in the ink is fluorescently colored when irradiated with ultraviolet rays, and the color tone of the printing ink is changed. When an inorganic phosphor is contained in the vehicle resin, the refractive index is the same as or similar to that of the vehicle resin, and colorless and transparent or white is preferable. Specifically, materials described in JP-A Nos. 54-13799 and 54-13798 can be used.
無機蛍光体に用いられる材料は、紫外線発光蛍光体または赤外線発光蛍光体があり、印刷インキ中に添加混合される。 Materials used for the inorganic phosphor include an ultraviolet light emitting phosphor and an infrared light emitting phosphor, which are added and mixed in the printing ink.
紫外線発光蛍光体は紫外線により励起され、それよりも低いエネルギー準位に戻るときに発するスペクトルのピークが青，緑，赤等の波長域にあるもので、例えばＣａ２Ｂ５Ｏ９Ｃｌ：Ｅｕ２＋，ＣａＷＯ４，ＺｎＯ：Ｚｎ２ＳｉＯ４Ｍｎ，Ｙ２Ｏ２Ｓ：Ｅｕ，ＺｎＳ：Ａｇ、ＹＶＯ４：Ｅｕ，Ｙ２Ｏ３：Ｅｕ，Ｇｄ２Ｏ２Ｓ：Ｔｂ，Ｌａ２Ｏ２Ｓ：Ｔｂ，Ｙ３Ａｌ５Ｏ１２：Ｃｅ等があり、単体又はこれらから数種を選択し混合して使用する。その蛍光スペクトルはピークを青，赤，緑の可視波長域以外に持つものである。インキ中の紫外線発光蛍光体の添加量は、検出機器の受光素子の蛍光の検知が可能となる程度に含有させる。 The ultraviolet light emitting phosphor is excited by ultraviolet light, and has a spectrum peak emitted when returning to an energy level lower than that. For example, Ca 2 B 5 O 9 Cl: Eu 2+, CaWO 4, ZnO: Zn 2 SiO 4 Mn, Y 2 O 2 S: Eu, ZnS: Ag, YVO 4: Eu, Y 2 O 3: Eu, Gd 2 O 2 S: Tb, La 2 O 2 S : Tb, Y 3 Al 5 O 12 : Ce, etc., are used alone or in combination with several selected from these. The fluorescence spectrum has peaks outside the visible wavelength range of blue, red, and green. The addition amount of the ultraviolet light-emitting phosphor in the ink is included so that the fluorescence of the light receiving element of the detection device can be detected.
赤外線発光蛍光体は波長λ1の励起光を受けて、波長λ2の可視光を発光する特性を示す。 The infrared light emitting phosphor exhibits a characteristic of receiving visible light having a wavelength λ 2 upon receiving excitation light having a wavelength λ 1 .
λ1＝λ２かつλ１＞λ２なる性質を有するものとして、例えば、ＹＦ３：Ｙｂ，Ｅｒ，ＺｎＳ：ＣｕＣｏ等がある。 For example, YF 3 : Yb, Er, ZnS: CuCo and the like have the properties of λ 1 = λ 2 and λ 1 > λ 2 .
λ１≠λ２かつλ１＞λ２なる性質を有するものとして、例えば、ＬｉＮｄ0.9Ｙｂ0.1Ｐ４Ｏ１２，ＬｉＢｉ0.2Ｎｄ0.7Ｙｂ0.1Ｐ４Ｏ１２，Ｎｄ0.9Ｙｂ0.1Ｎｄ５（ＭｏＯ４）4，ＮａＮｄ0.9Ｙｂ0.1Ｐ４Ｏ１２，Ｎｄ0.8Ｙｂ0.2Ｎａ0.5（ＷＯ４）４，Ｎｄ0.8Ｙｂ0.2Ｎａ５（Ｍｏ0.5ＷＯ0.5）４，Ｃｅ0.05Ｇｄ0.05Ｎｄ0.75Ｙｂ0.25Ｎａ５（Ｗ0.7Ｍｏ0.3Ｏ４）４ ，Ｎｄ0.9Ｙｂ0.1Ａｌ３（ＢＯ３）４，Ｎｄ0.9Ｙｂ0.1Ａｌ2.7Ｃｒ0.3（ＢＯ３）４，Ｎｄ0.6Ｙｂ0.4Ｐ５Ｏ14，Ｎｄ0.8Ｙｂ0.2Ｋ３（ＰＯ４）２等があり、いずれも励起光（λ1）８００ｎｍの赤外線を受けて９８０ｎｍ〜１０２０ｎｍに発光スペクトルの顕のピークを有する赤外線（λ２）を発光するものである。インキ中の赤外線発光蛍光体の添加量は、検出機器の受光素子の蛍光の検知が可能となる程度に含有させる。 For example, LiNd 0.9 Yb 0.1 P 4 O 12 , LiBi 0.2 Nd 0.7 Yb 0.1 P 4 O 12 , Nd 0.9 Yb 0.1 Nd 5 (MoO 4 ) are assumed to have the properties of λ 1 ≠ λ 2 and λ 1 > λ 2. 4 , NaNd 0.9 Yb 0.1 P 4 O 12 , Nd 0.8 Yb 0.2 Na 0.5 (WO 4 ) 4 , Nd 0.8 Yb 0.2 Na 5 (Mo 0.5 WO 0.5 ) 4 , Ce 0.05 Gd 0.05 Nd 0.75 Yb 0.25 Na 5 (W 0.7 Mo 0.3 O 4 ) 4 , Nd 0.9 Yb 0.1 Al 3 (BO 3 ) 4 , Nd 0.9 Yb 0.1 Al 2.7 Cr 0.3 (BO 3 ) 4 , Nd 0.6 Yb 0.4 P 5 O 14 , Nd 0.8 Yb 0.2 K 3 (PO 4 ) 2 and the like, all of which emit infrared light (λ 2 ) having a peak of emission spectrum at 980 nm to 1020 nm upon receiving 800 nm infrared light of excitation light (λ 1 ). The addition amount of the infrared light emitting phosphor in the ink is included so that the fluorescence of the light receiving element of the detection device can be detected.
情報読み取りにあたっては、紫外線または赤外線の照明光源（および受光部）を搭載した検証機器が用いられ、通常インキにより印字された識別コード内に潜在させた真偽判定コードのみを、紫外線または赤外線の照射時に、選択的に視認（発光）あるいは検出することができる。 When reading information, a verification device equipped with an ultraviolet or infrared illumination light source (and light receiving unit) is used, and only the authenticity determination code hidden in the identification code printed with normal ink is irradiated with ultraviolet or infrared light. Sometimes it can be selectively viewed (emitted) or detected.
＜実施形態３＞
特殊インキとしては、特開２０１０−３１１０６号公報（特許第５４７７５２６号）に開示された技術等を適用することもできる。インキは、少なくとも３つの異なる波長域において異なる反射特性を有する。インキは、図２に示すように、波長の短い順に、第１の波長領域（たとえば光の反射率が１０％以下の波長領域）Ａ１と、第２の波長領域（たとえば光の反射率が４３〜７３％の波長領域）Ａ２と、第３の波長領域（たとえば光の反射率が１３〜４３％の波長領域）とを有するものが好適である。ここで、第３の波長領域の反射率は、第２の波長領域の反射率より３０〜７０％の範囲にあることが好適である。特開２０１０−３１１０６号公報に開示された技術によれば、近赤外領域または赤外領域にこのような波長領域を作ることができる。第１の波長領域Ａ１から第３の波長領域Ａ３は連続していても、連続していなくても良い。
<Embodiment 3>
As the special ink, the technique disclosed in Japanese Patent Application Laid-Open No. 2010-31106 (Patent No. 5477526) can be applied. The ink has different reflection characteristics in at least three different wavelength ranges. As shown in FIG. 2, the ink has a first wavelength region (for example, a wavelength region having a light reflectance of 10% or less) A1 and a second wavelength region (for example, a light reflectance of 43 in order of shorter wavelengths). (A wavelength region of ˜73%) A2 and a third wavelength region (for example, a wavelength region where the reflectance of light is 13% to 43%) are preferable. Here, the reflectance of the third wavelength region is preferably in the range of 30 to 70% than the reflectance of the second wavelength region. According to the technique disclosed in JP 2010-31106 A, such a wavelength region can be formed in the near infrared region or the infrared region. The first wavelength region A1 to the third wavelength region A3 may or may not be continuous.
情報読み取りにあたっては、３種類の波長域の照射光源を具備する検証機器が用いられ、第１の発光部は第１の波長領域Ａ１にある波長の光を発光するものとし、第２の発光部は第２の波長領域Ａ２にある波長の光を発光するものとし、第３の発光部は、第３の波長領域Ａ３にある波長の光を発光するものを採用することができる。 In reading information, a verification device having an irradiation light source of three types of wavelength ranges is used, the first light emitting unit emits light having a wavelength in the first wavelength region A1, and the second light emitting unit. Can emit light having a wavelength in the second wavelength region A2, and the third light emitting unit can emit light having a wavelength in the third wavelength region A3.
＜実施形態４＞
インキ組成（照射光の波長に応じた分光反射特性，色相）は共通であっても、反射特性の相違による使い分けも考えられる。
<Embodiment 4>
Even if the ink composition (spectral reflection characteristics and hue according to the wavelength of irradiation light) is the same, it can be used properly depending on the difference in reflection characteristics.
例えば、同一組成のインキに球状の透明ビーズを分散混合することにより、インキ層からの反射光に再帰性を付与したインキを特殊インキとして採用することで、正反射成分が多く再帰反射成分の少ない通常インキ（識別コード）からの反射光と、再帰反射成分の多い特殊インキ（真偽判定コード）からの反射光とを、反射光強度のフィルタリングにより別コードの情報として識別して読み取ることも可能である。 For example, by using spherical ink beads with the same composition dispersed and mixed as a special ink, the reflected light from the ink layer is used as a special ink. Reflected light from normal ink (identification code) and reflected light from special ink (true / false determination code) with many retroreflective components can be identified and read as separate code information by filtering the reflected light intensity. It is.
＜実施形態５＞
また、本発明では、照射光の波長に応じた異なる特性を発揮するインキだけでなく、温度条件に応じて発色特性が異なる複数種類の特殊インキも採用し得る。
<Embodiment 5>
In addition, in the present invention, not only inks that exhibit different characteristics depending on the wavelength of irradiation light, but also a plurality of types of special inks that differ in color development characteristics depending on temperature conditions can be employed.
例えば、特殊インキで印字された真偽判定コード上に識別コードの厚盛印刷をすることで下地印刷を隠蔽しておき、通常時には識別コードだけが視覚されるが、印刷面を加温することで下地印刷が現れてくるなどの視覚効果を付与することも可能である。識別コードの検証，真偽判定コードの検証は、常温または加温状態のそれぞれ別状態で目視あるいは検証機器による読み取りを行なうこととなる。 For example, by overlaying the identification code on the authenticity determination code printed with special ink, the base print is concealed so that only the identification code is visible normally, but the printing surface is heated. It is also possible to add a visual effect such as underprinting. The verification of the identification code and the verification of the authenticity determination code are performed by visual inspection or reading by a verification device in different states at normal temperature or in a heated state.
上記インキとして、「示温塗料」と称するものがあり、特定の温度以上になると変色し，冷却後もその色を保つ特性を持つ「不可逆性示温塗料」と、一旦変色しても特定の温度以下になると再びもとの色に戻る特性を持つ「可逆性示温塗料」とが存在する。 There is what is called “temperature indicating paint” as the above ink, “irreversible temperature indicating paint”, which has the property of changing its color when it exceeds a certain temperature and keeps its color after cooling, and below a certain temperature even if it discolors once Then, there is a “reversible temperature indicating paint” that has the property of returning to the original color.
不可逆性示温塗料では、顔料として用いられるコバルト，ニッケル，銅，その他の化合物が熱分解その他によって組成が変ることを利用しており、可逆性示温塗料では、化合物の結晶系の転移やその他の物理的変化を利用するもので組成変化はない。ヨウ化水銀（II）酸塩その他が用いられる。前者で４５０℃，後者で２００℃程度までの耐久性があり、適用可能とされている。 Irreversible thermal paints use the fact that cobalt, nickel, copper, and other compounds used as pigments change their composition due to thermal decomposition, etc., and reversible thermal paints use a crystal system transition of compounds and other physical properties. There is no change in composition. Mercury (II) iodide and others are used. The former has durability up to 450 ° C. and the latter up to about 200 ° C., and is applicable.
本実施形態においては、対象製品の真偽判定性を向上するのみならず、製造から店頭や最終消費者に到るまでの流通，保管状態が適切であったかのデリバリー体制の確認でのトレーサビリティ管理での応用も可能である。 In this embodiment, not only the authenticity of the target product is improved, but also traceability management is performed by confirming the delivery system whether the distribution and storage conditions from manufacturing to the storefront and the final consumer are appropriate. Application is also possible.
例えば、過剰な高温あるいは低温の状態下での品質低下を招く可能性があった場合、変色した示温塗料による判定コードパターンの現出の有無（程度）を確認する目的でのコード混在である。 For example, when there is a possibility of causing quality deterioration under an excessively high or low temperature state, the code is mixed for the purpose of confirming the presence / absence (extent) of the determination code pattern due to the discolored temperature indicating paint.
以上説明した各種実施形態のインキを用いて、識別コード中に真偽判定コードを混在（潜在）してなる偽造防止用印刷物（あるいは、それを適用してなる物品）について、偽造犯が前記印刷物の偽造または複写を試みても、真偽判定コードも含めた忠実な再現は不可能である。 Forgery-preventing printed matter (or an article to which the anti-counterfeit code is applied) in which the authenticity determination code is mixed (latent) in the identification code using the inks of the various embodiments described above, Even if forgery or copying is attempted, faithful reproduction including the authenticity determination code is impossible.
図３（ａ）はインキＡによる識別コード１１（バーコード），図３（ｂ）はインキＢによる真偽判定コード１２（バーコード）であり、図３（ｃ）が双方を同一箇所に混在（真偽判定コードを識別コード内に潜在）させた偽造防止用印刷物１０の構成である。説明の便宜上、真偽判定コード１２は淡い色相で図示してあるが、インキの種類によっては、真偽判定コード１２は視覚できず、通常インキのみを検出する照射光では、検証機器による検出，複写器でのコピーも行なわれない。特殊インキのみが機能発揮する条件（照射光線など）が予め把握されていないと、真偽判定コード１２を検出〜識別されず、図３（ｃ）
の正規品１０は再現されない。
3A shows an identification code 11 (bar code) based on ink A, FIG. 3B shows a true / false determination code 12 (bar code) based on ink B, and FIG. 3C is mixed in the same place. This is a configuration of the anti-counterfeit printed matter 10 in which the authenticity determination code is hidden in the identification code. For convenience of explanation, although the authenticity determination code 12 is illustrated in a light hue, the authenticity determination code 12 cannot be visually recognized depending on the type of ink, and the irradiation light that detects only normal ink is detected by a verification device. No copying with a copier. If the conditions (irradiation light, etc.) under which only the special ink performs its function are not grasped in advance, the authenticity determination code 12 is not detected or identified, and FIG.
The genuine product 10 is not reproduced.
また、特殊な検証機器を持たないユーザーが真偽判定を試みたい要望に対しては、特殊インキによる真偽判定コードが発現した状態での撮像データを準備出来れば、スマートフォンの専用アプリで商品バーコード（ＱＲコード（登録商標））を撮影〜送信すると、真偽判定コード（特徴点情報）をクラウドデータベースに保管された基準データと照合することで、真偽判定が可能となる。 For users who do not have a special verification device, and want to try authenticity determination, if you can prepare imaging data with the authenticity determination code by special ink, you can use the smartphone dedicated app to When the code (QR code (registered trademark)) is photographed to transmitted, the authenticity determination code (feature point information) is checked against the reference data stored in the cloud database, thereby enabling the authenticity determination.
１０ 偽造防止用印刷物
１１ 識別コード
１２ 真偽判定コード
10 Printed matter for preventing forgery 11 Identification code 12 Authenticity determination code
Claims (5)
識別コードを印刷するインキと、識別コード内に混在させた真偽判定コードを印刷するインキの種類が異なることを特徴とする偽造防止用印刷物。 An anti-counterfeit printed matter having an identification code composed of a plurality of types of inks each having different spectral reflection characteristics with respect to irradiation light,
An anti-counterfeit printed matter, characterized in that the type of ink for printing the identification code and the type of ink for printing the authenticity determination code mixed in the identification code are different.
識別コードを印刷するインキと、識別コード内に混在させた真偽判定コードを印刷するインキの種類が異なることを特徴とする偽造防止用印刷物。 A forgery-preventing printed matter having an identification code composed of a plurality of types of inks having different color development characteristics according to temperature conditions,
An anti-counterfeit printed matter, characterized in that the type of ink for printing the identification code and the type of ink for printing the authenticity determination code mixed in the identification code are different.
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| EP3809491A1 (en) | 2019-10-15 | 2021-04-21 | Honda Motor Co., Ltd. | Electrode for lithium ion secondary batteries and lithium ion secondary battery |
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