JP4528933B2 - Formed body capable of discriminating authenticity - Google Patents

Formed body capable of discriminating authenticity Download PDF

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JP4528933B2
JP4528933B2 JP2003326843A JP2003326843A JP4528933B2 JP 4528933 B2 JP4528933 B2 JP 4528933B2 JP 2003326843 A JP2003326843 A JP 2003326843A JP 2003326843 A JP2003326843 A JP 2003326843A JP 4528933 B2 JP4528933 B2 JP 4528933B2
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憲明 松本
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独立行政法人 国立印刷局
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本発明は、銀行券、郵券、旅券、株券、有価証券、通行回数券、カード等の偽造、変造を防止する必要のある印刷物に適用される真偽判別可能な形成体に関するものである。   The present invention relates to a formed body capable of authenticating authenticity applied to printed matter that needs to prevent counterfeiting and alteration of banknotes, postal tickets, passports, stock certificates, securities, pass tickets, cards and the like.
偽造、変造を防止する必要のある印刷物における視認判別要素としてホログラムなどの光学的変化素子(OVD:Optical Variabie Device)を用いての偽造防止策が効果的であるが、ホログラムの作製には原版の製造から箔の完成までには多くの工程と時間を必要とするため、少量の製造はコストの増大をもたらして必ずしも経済的ではなかったと同時に短納期製品や小ロット製品への採用は見送られることが多かった。   Forgery prevention using an optical variable device (OVD) such as a hologram is effective as a visual recognition element in printed matter that needs to prevent forgery and alteration. Since many processes and time are required from production to completion of the foil, production of a small amount is not necessarily economical because it increases costs, and at the same time, adoption in short delivery products and small lot products is forgotten. There were many.
また、ホログラムなどの光学的変化素子を設けた有価証券類に対する偽造防止を目的とした印刷は、銀行券等の印刷に用いられる凹版印刷によるものがほとんどであるが、この強い圧印を必要とする印刷方法で光学的変化素子上に印刷を行うと、光学的変化素子に直接凹凸構造をつけることになり、光学的変化素子の回折格子が著しく損傷を受け、光学的変化素子としての機能を損なってしまう。また光学的変化素子を何らかの方法で除去したときには、基材に凹凸構造(エンボス)が残ってしまう技術であった。   In addition, printing for the purpose of preventing forgery of securities with optical change elements such as holograms is mostly done by intaglio printing used for printing banknotes, etc., but this strong impression is required. If printing is performed on an optically variable element by printing, the optically variable element is directly provided with a concavo-convex structure, and the diffraction grating of the optically variable element is significantly damaged and the function as the optically variable element is impaired. End up. Further, when the optically changing element is removed by any method, it is a technique in which a concavo-convex structure (emboss) remains on the substrate.
さらに光学的変化素子上に印刷を行なう際、有色インキまたは透明なインキを用いることも開示されているが、その時の印刷は剥離及び再貼付による改竄を防止することを目的とする割印の如き作用を持つものであった。(例えば、特許文献1参照。)。   Furthermore, it is also disclosed that colored ink or transparent ink is used when printing on the optically variable element, but printing at that time acts like a tampering to prevent falsification due to peeling and reattachment. It was something with. (For example, refer to Patent Document 1).
本発明は、このような従来の問題を解決することを目的としたもので、光学的変化素子を短納期製品や小ロット製品へも採用可能とするとともに、有価証券類に設けられた光学的変化素子の回折格子を損傷及び変形させない印刷方式例えばスクリーン印刷、パッド印刷、あるいは発泡インキを使用したオフセット印刷等により印刷を行うことで光学的変化素子の偽造防止安定性をより向上させ、更に光学的変化素子の光学変化だけでなく、目視確認される画像が光学的変化素子上に設けられた透明なインキ及び半透明なインキのうち少なくとも一つのインキ内部を透過することにより更なる光学的変化を発生させる真偽判別可能な形成体を提案することを目的とする。   An object of the present invention is to solve such a conventional problem. An optical change element can be used for a short delivery product and a small lot product, and an optical device provided for securities. Printing method that does not damage or deform the diffraction grating of the changing element, for example, screen printing, pad printing, or offset printing using foamed ink, etc. to further improve the anti-counterfeiting stability of the optical changing element, and further Not only the optical change of the optical change element but also the optically confirmed image is transmitted through the inside of at least one of the transparent ink and the translucent ink provided on the optical change element. An object of the present invention is to propose a formed body capable of determining authenticity.
特許第3053209号明細書(3頁6欄)Patent No. 3053209 (page 3, column 6)
本発明は、基材上の少なくとも一部に金属光沢層が設けられ、前記金属光沢層上の少なくとも一部に盛り上がりのある透明なインキ及び半透明なインキのうち少なくとも一つのインキによる線画から構成される基本画像部を印刷されており、前記基本画像部は背景画像部と少なくとも一つ以上のメッセージ画像部とに区分され、前記背景画像部と前記メッセージ画像部はそれぞれ互いに配列方向が異なる等間隔の線画で形成されていることを特徴とする真偽判別可能な形成体である。   The present invention comprises a line drawing of at least one of a transparent ink and a semi-transparent ink, wherein a metallic gloss layer is provided on at least a part of the substrate and at least a part of the metal gloss layer is raised. The basic image portion is printed, the basic image portion is divided into a background image portion and at least one message image portion, and the background image portion and the message image portion have different arrangement directions from each other, etc. It is a formed body capable of authenticating authenticity, characterized by being formed by a line drawing of an interval.
本発明は、金属光沢層が光学的変化素子であることを特徴とする真偽判別可能な形成体である。   The present invention is a formed article capable of authenticating authenticity, wherein the metallic luster layer is an optically changing element.
本発明は、前記メッセージ画像部が観察角度によって、ネガ画像からポジ画像またはポジ画像からネガ画像に変化して出現することを特徴とした真偽判別可能な形成体である。   The present invention is the formation body capable of authenticating authenticity, wherein the message image portion appears changing from a negative image to a positive image or from a positive image to a negative image depending on an observation angle.
本発明は、前記背景画像部の線画及び前記メッセージ画像部のそれぞれ互いに配列方向が異なる線画の画線幅がそれぞれ30μmから1000μmの範囲であることを特徴とした真偽判別可能な形成体である。   The present invention is a formed body capable of determining authenticity, wherein the line widths of the line images of the background image portion and the message image portion having different arrangement directions are in the range of 30 μm to 1000 μm, respectively. .
本発明は、前記盛り上がりのある透明なインキ及び半透明なインキのうち少なくとも一つのインキによる等間隔の線画の画線高さ(基材表面上からのインキの膜厚)がそれぞれ5μmから250μmの範囲であることを特徴とした真偽判別可能な形成体である。   In the present invention, the line height (film thickness of the ink from the surface of the base material) of equally spaced line drawings of at least one of the swelled transparent ink and translucent ink is 5 μm to 250 μm, respectively. It is a formed body capable of determining authenticity characterized by being in a range.
本発明は、前記光学的変化素子の回折格子を損傷及び変形させない印刷方式により印刷することを特徴とした真偽判別可能な形成体の作製方法である。   The present invention is a method for producing a formed body capable of authenticity determination, wherein printing is performed by a printing method that does not damage or deform the diffraction grating of the optically variable element.
本発明の真偽判別可能な形成体を、任意に設定した角度から観察した場合には前記基本画像部は認識できずに光学的変化素子のみが確認でき、前記任意に設定した角度以外から観察した場合には光学的変化素子の光学的変化とともに前記メッセージ画像部が顕在化され、更に深い観察角度においてメッセージ画像はネガ画像からポジ画像に、あるいはポジ画像からネガ画像に変化するため、高価な真偽判別装置を用いなくとも、誰でもその場で容易に真偽判別することができ、しかもコピー等の複写機器で複製することが事実上困難である。   When the formed body capable of determining authenticity of the present invention is observed from an arbitrarily set angle, the basic image portion cannot be recognized and only the optically changing element can be confirmed, and observed from other than the arbitrarily set angle. In this case, the message image portion becomes obvious with an optical change of the optical change element, and the message image changes from a negative image to a positive image or from a positive image to a negative image at a deeper observation angle. Even if no authenticity determination device is used, anyone can easily determine authenticity on the spot, and it is practically difficult to reproduce with a copying machine such as a copy machine.
更に光学的変化素子の回折格子模様の配列から生じる周波数と、スクリーン印刷による膜厚のある線画から生じる周波数によって、新たな画像が出現するとともに、出現した画像が観察角度を変化することにより動きのある画像を得られることで更なる偽造防止効果を付与することが可能となる。   Furthermore, a new image appears depending on the frequency generated from the arrangement of the diffraction grating pattern of the optically changing element and the frequency generated from the line drawing having a film thickness by screen printing. By obtaining a certain image, it is possible to provide a further anti-counterfeit effect.
更に短納期製品や小ロット製品に対し、光学的変化素子の図柄は共通としても、光学的変化素子上に印刷する基本画像を製品毎に任意に設計して施すことにより、製品毎に異なる画像が得られることから、結果として共通図柄の光学的変化素子を事前に一括大量生産しておけば、本発明の形成体を短納期製品や小ロット製品での採用を可能とし、製品へ偽造防止効果を付与することが可能となる。   Furthermore, even if the design of the optical change element is the same for short delivery products and small lot products, the basic image to be printed on the optical change element can be designed and applied arbitrarily for each product. As a result, if the optically variable elements with common patterns are mass-produced in advance, the formed body of the present invention can be used for products with short delivery times and small lot products, and forgery is prevented. An effect can be imparted.
次に図面を参照にして本発明に係る真偽判別を向上させる形成体の実施形態について説明する。   Next, an embodiment of a formed body for improving authenticity determination according to the present invention will be described with reference to the drawings.
本発明の金属光沢層は、アルミニウムや金などの金属を基材に対して直接蒸着、もしくは転写箔へ蒸着して基材へ転写するなどの方法によって形成されるが、光沢を呈する材料であれば金属以外の材料(例えばセラミックなど)を蒸着して形成してもよい。   The metallic luster layer of the present invention is formed by a method such as directly depositing a metal such as aluminum or gold on a substrate, or depositing it on a transfer foil and transferring it to the substrate. For example, a material other than metal (for example, ceramic) may be formed by vapor deposition.
本発明の形成体における基本画像を、線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、背景線画角度を0度、メッセージ線画角度を90度としてスクリーン版面を製版し、色調を持たない紫外線硬化型の透明インキにより幾何学模様図柄の光学的変化素子上にスクリーン印刷を行い、図1のような形成体を得た。   The basic image in the formed body of the present invention was prepared by making a screen plate surface with a line width of 150 μm, a line width interval of 150 μm, an ink film thickness of 20 μm, a background line drawing angle of 0 degree, and a message line drawing angle of 90 degrees. Screen printing was performed on the optically variable element having a geometric pattern using an ultraviolet curable transparent ink that was not provided, and a formed body as shown in FIG. 1 was obtained.
図1は基材1上に光学的変化素子4を設け、その一部又は全面に背景画像部である盛り上がりのある線画2と、メッセージ画像部である線画3を透明なインキ及び半透明なインキのうち少なくとも一つのインキで印刷した形成体を示す図である。図2は図1におけるA−A'断面図である。この形成体を任意に設定した角度から観察した場合、背景画像部、メッセージ画像部は細い線画で印刷され、光の影響を受けにくくベタに近い印刷領域として認識され、背景画像部とメッセージ画像部における線画の配列方向の違い及び、光の干渉や回折に起因する潜像画像の顕像化は発生しないため、前記印刷領域は確認されないことにより、図4のような光学的変化素子のみが確認できる。   In FIG. 1, an optical change element 4 is provided on a substrate 1, and a line image 2 having a swell as a background image portion and a line image 3 as a message image portion on a part or the entire surface of the transparent ink and translucent ink. It is a figure which shows the formed body printed with at least 1 ink. 2 is a cross-sectional view taken along line AA ′ in FIG. When this formed body is observed from an arbitrarily set angle, the background image portion and the message image portion are printed as thin line drawings, and are recognized as a print area that is hardly affected by light and is close to a solid, and the background image portion and the message image portion. Since the latent image is not visualized due to the difference in the arrangement direction of the line drawings and the interference and diffraction of light, only the optical change element as shown in FIG. it can.
本発明の形成体を任意に設定した角度から観察したとき、ベタな印刷物のように認識されるには、前記背景画像部の線画及び前記メッセージ画像部の線画においてそれぞれの画線幅は30μmから1000μmの範囲が好ましく、60μmから200μmの範囲においては、さらに視認性が向上することにより好ましい。   When the formed body of the present invention is observed from an arbitrarily set angle, in order to be recognized as a solid print, each line width of the background image portion and the message image portion is from 30 μm. The range of 1000 μm is preferable, and the range of 60 μm to 200 μm is preferable because the visibility is further improved.
更に、本発明の盛り上がりのある画線は、背景画像部とメッセージ画像部の各画線の高さが5μmから250μmの範囲であることが好ましい。インキの膜厚が5μm以下であると、本発明の形成体を傾けて観察した場合、メッセージ画像部が明瞭に出現しにくくなる。   Furthermore, it is preferable that the height of each image line in the background image portion and the message image portion is in the range of 5 μm to 250 μm. When the film thickness of the ink is 5 μm or less, the message image portion hardly appears clearly when the formed body of the present invention is tilted and observed.
本発明の盛り上がりのある線画を形成するには、基材上に設けられた光学的変化素子の回折格子を損傷及び変形させない印刷方式において使用可能なインキ、例えば、蒸発乾燥型インキ、酸化重合型インキ、2液反応型インキ、紫外線硬化型インキ、電子線硬化型インキ、紫外線硬化及び酸化重合機能を併せ持つインキなどが使用できるが、紫外線硬化型インキで作製することが望ましい。また、前記インキに蓄光、ガラスフレーク、コレステリック液晶、紫外線発光、赤外線反射及び赤外線吸収等の光を遮蔽しない機能性顔料を入れることにより、更なる偽造防止効果の向上を図ることができる。   In order to form the exciting line drawing of the present invention, ink that can be used in a printing system that does not damage and deform the diffraction grating of the optically variable element provided on the substrate, such as evaporative drying ink, oxidation polymerization type Ink, two-component reactive ink, ultraviolet curable ink, electron beam curable ink, ink having both ultraviolet curable and oxidative polymerization functions, and the like can be used. Further, by adding functional pigments that do not block light such as phosphorescence, glass flakes, cholesteric liquid crystal, ultraviolet light emission, infrared reflection, and infrared absorption to the ink, it is possible to further improve the forgery prevention effect.
基材上に設けられた光学的変化素子の回折格子を損傷及び変形させない印刷方式において使用可能なインキに、蓄光、ガラスフレーク、コレステリック液晶、紫外線発光、赤外線反射及び赤外線吸収等の光を遮蔽しない機能性顔料を混入する場合、粒子径の大きさは1μmから150μmのものを用い、好ましくは5μmから50μmで、平均10μmから15μm程度が好ましい。   Ink that can be used in a printing system that does not damage or deform the diffraction grating of the optically variable element provided on the substrate does not block light such as phosphorescence, glass flakes, cholesteric liquid crystal, ultraviolet light emission, infrared reflection, and infrared absorption. When the functional pigment is mixed, the particle diameter is 1 μm to 150 μm, preferably 5 μm to 50 μm, and preferably about 10 μm to 15 μm on average.
本発明の形成体を任意に設定した角度以外から観察した場合に、前記メッセージ画像が出現し、更に、観察角度においては前記メッセージの明暗が連続的に変化し、前記メッセージ画像が図5および図6のようにネガ画像からポジ画像又はポジ画像からネガ画像に変化して出現する。   When the formed body of the present invention is observed from an angle other than an arbitrarily set angle, the message image appears. Further, at the observation angle, the brightness of the message continuously changes, and the message image is shown in FIGS. As shown in FIG. 6, the negative image changes to a positive image or changes from a positive image to a negative image.
本発明の形成体を任意に設定した角度以外から観察したとき、メッセージ画像部を明瞭に出現させるには、背景画像部の線画及びメッセージ画像部の線画は、好ましくは万線パターン又は曲万線パターンもしくはレリーフ模様パターンで形成することで背景画像部とメッセージ画像部との反射光の光量の違いにより明暗差がはっきりするため、よりメッセージ画像部の潜像画像部の視認性が向上するが、背景画像部とメッセージ画像部とを形成できるものであればこの限りではなく、また点線・破線などで形成、もしくは万線パターン、曲万線パターン、レリーフ模様パターンと混在していてもよい。   In order to make the message image portion appear clearly when the formed body of the present invention is observed from an angle other than the arbitrarily set angle, the line image of the background image portion and the line image of the message image portion are preferably line patterns or curved lines. By forming a pattern or a relief pattern, the difference in the amount of reflected light between the background image portion and the message image portion becomes clear, so the visibility of the latent image portion of the message image portion is improved. This is not limited as long as the background image portion and the message image portion can be formed. Alternatively, the background image portion and the message image portion may be formed by dotted lines or broken lines, or may be mixed with a line pattern, a curved line pattern, or a relief pattern.
また、背景画像部の線画とメッセージ画像部の配列方向が異なる等間隔の線画の角度は、30度から150度の範囲であることが好ましい。更に好ましくは、背景画像部の線画の配列方向の角度を0度とした場合、メッセージ画像部の線画の異なる配列方向の角度は90度が好ましい。   In addition, it is preferable that the angle of equally spaced line drawings in which the arrangement direction of the background image portion and the message image portion are different is in the range of 30 degrees to 150 degrees. More preferably, when the angle in the arrangement direction of the line image in the background image portion is 0 degree, the angle in the arrangement direction in which the line image in the message image portion is different is preferably 90 degrees.
また、例えば、基本画像に2つのメッセージ画像部を入れた場合、一方の背景画像部を70度とした場合、もう一方の背景画像部を110度とし、メッセージ画像部の配列方向の角度は、それぞれ30、150度に設定し、短冊状に画像を分割したのち合成させるとより視認しやすくなる。また、メッセージ画線部の幅を変化することにより、任意のメッセージを2つ以上入れることが可能である。   Also, for example, when two message image parts are put in a basic image, when one background image part is 70 degrees, the other background image part is 110 degrees, and the angle of the message image part in the arrangement direction is When the angles are set to 30 and 150 degrees, and the images are divided into strips and then combined, it becomes easier to visually recognize. Further, it is possible to put two or more arbitrary messages by changing the width of the message line portion.
また、本発明の背景画像部の線画及びメッセージ画像部の線画において、各画線の画線幅を段階的及び、又は連続的に変化させることで、形成体を傾けることにより、任意の階調を有する潜像画像が表現され、偽造防止の向上を図ることができる。   In addition, in the line drawing of the background image portion and the line drawing of the message image portion of the present invention, any gradation can be obtained by tilting the formed body by changing the line width of each drawing stepwise or continuously. A latent image having the above is expressed, and forgery prevention can be improved.
基材上に設けられる光学的変化素子の回折格子をつなぎ目なく同一方向に配列した上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、背景線画角度を0度、メッセージ線画角度を90度としてスクリーン版面を製版し、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   The diffraction gratings of the optical change elements provided on the substrate are arranged in the same direction without any joints, the basic image has a line width of 150 μm, the line width interval is 150 μm, the ink film thickness is 20 μm, and the background line drawing angle is 0. Then, the screen plate surface was made with a message line drawing angle of 90 degrees, and screen printing was performed with an ultraviolet curable transparent ink having no color tone to obtain a formed body.
本発明の形成体による光学的変化素子上へ基本画像を印刷する際、透明なインキ及び半透明なインキのうち少なくとも一つのインキを使用することにより、インキへの入射光がインキ内部を通過し、光学的変化素子からの反射光を観察する際、前記透明なインキ及び半透明なインキのうち少なくとも一つのインキがレンズ的な効果を発生させるため、観察角度により光学的な干渉、回折、もしくは屈折が起り、透明なインキ及び半透明なインキの色調が発現または変化するなどの、あたかも色調があるように観察することができる。   When a basic image is printed on the optically variable element according to the formed body of the present invention, by using at least one of a transparent ink and a translucent ink, light incident on the ink passes through the inside of the ink. When observing the reflected light from the optically changing element, at least one of the transparent ink and the translucent ink produces a lens effect, so that the optical interference, diffraction, or Refraction occurs, and the color tone of transparent ink and translucent ink is expressed or changed, and it can be observed as if there is a color tone.
また、透明なインキ及び半透明なインキのうち少なくとも一つのインキは、光学的変化素子上に印刷した場合、光学的変化素子が視認できる程度の透明性が好ましく、色調も特に限定されるものではない。   In addition, at least one of the transparent ink and the translucent ink is preferably transparent so that the optical change element is visible when printed on the optical change element, and the color tone is not particularly limited. Absent.
基材上の光学的変化素子の回折格子をつなぎ目なく60度ずつ角度を変えて、300μmごとに万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、背景線画角度を0度、メッセージ線画角度を90度とし、さらに、背景画像部の一部に振幅幅3mm、曲率半径3mmの曲万線模様としてスクリーン版面を製版し、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   The diffraction grating of the optical change element on the substrate is seamlessly changed by 60 degrees, and the basic image is 150 μm in line width and 150 μm in line width on the 300 μm line array. The screen plate surface is engraved as a curved line pattern with an amplitude width of 3 mm and a curvature radius of 3 mm in a part of the background image portion, with a film thickness of 20 μm, a background line drawing angle of 0 degree, and a message line drawing angle of 90 degrees. Screen-printing was carried out with an ultraviolet curable transparent ink having no ink to obtain a formed body.
本発明の形成体による光学的変化素子の回折格子模様が周波数を持つように画素配列を行い(第1の周波数)、その光学的変化素子上に、光学的変化素子の周波数とは異なる周波数を持つ万線または曲万線などによる基本画像の線画(第2の周波数)の印刷を行うことにより、図7に示すように周波数の異なる第1の周波数と第2の周波数が重なった部分で画像に発生するモアレ現象によって、偽造防止の向上を図ることができる。   The pixel arrangement is performed so that the diffraction grating pattern of the optical change element by the formed body of the present invention has a frequency (first frequency), and a frequency different from the frequency of the optical change element is set on the optical change element. By printing a line drawing (second frequency) of the basic image using a line or curved line, etc., it has an image at the portion where the first frequency and the second frequency different from each other overlap as shown in FIG. The anti-counterfeiting can be improved by the moire phenomenon that occurs in
光学的変化素子の回折格子の画素配列を1μmから1000μm幅で形成し、画素配列の間隙を0から1000μmで配置を行い、背景画像部の画線を5μmから250μmの範囲でインキの膜厚を形成し、30μmから1000μmのピッチで曲線や同心円により配置することが望ましい。   The pixel array of the diffraction grating of the optical change element is formed with a width of 1 μm to 1000 μm, the gap of the pixel array is arranged with 0 to 1000 μm, and the thickness of the ink in the range of 5 μm to 250 μm in the background image area. It is desirable to form and arrange by a curve or a concentric circle at a pitch of 30 μm to 1000 μm.
本発明の形成体による光学的変化素子の回折格子模様が周波数を持つように配列した画素配列と、その光学的変化素子上に、光学的変化素子の画素配列の周波数と同じ周波数により基本画像の線画を万線または曲万線などで角度を変えて印刷することにより、角度が異なっている光学的変化素子の画素配列と基本画像の線画が重なった部分で画像に発生するモアレ現象によって、偽造防止の向上を図ることができる。   The pixel array in which the diffraction grating pattern of the optical change element according to the formed body of the present invention is arranged to have a frequency, and the basic image of the base image is formed on the optical change element by the same frequency as the frequency of the pixel array of the optical change element. By printing the line drawing at different angles, such as lines or curved lines, forgery occurs due to the moire phenomenon that occurs in the image where the pixel array of the optically variable elements with different angles and the line drawing of the basic image overlap. The prevention can be improved.
基材上の光学的変化素子の回折格子幅を290μmとし、回折格子角度を60度ずつ変化させ、10μmの回折格子を持たない間隙と隣り合わせにしたものを万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、背景線画角度を0度、メッセージ線画角度を90度とし、さらに、背景画像部の一部に振幅幅3mm、曲率半径3mmの曲万線模様としてスクリーン版面を製版し、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   On the one in which the diffraction grating width of the optical change element on the substrate is 290 μm, the diffraction grating angle is changed by 60 degrees and the gap adjacent to the gap not having the 10 μm diffraction grating is arranged as a line pattern, The basic image has a line width of 150 μm, a line width interval of 150 μm, an ink film thickness of 20 μm, a background line drawing angle of 0 degree, and a message line drawing angle of 90 degrees. Furthermore, a part of the background image portion has an amplitude width of 3 mm and a curvature. A screen plate surface was made as a curved line pattern with a radius of 3 mm, and screen printing was performed with an ultraviolet curable transparent ink having no color tone to obtain a formed body.
本発明の形成体による光学的変化素子において、回折格子模様を持つ画素と、回折格子を持たない任意の大きさの間隙が周波数を持つように連続的に配列された画素配列であるとき(第1の周波数)、その光学的変化素子上に、光学的変化素子の周波数とは異なる周波数を持つ万線または曲万線などによる基本画像の線画(第2の周波数)の印刷を行うことにより、周波数の異なる第1の周波数と第2の周波数が重なった部分で画像に発生するモアレ現象によって、偽造防止の向上を図ることができる。   The optically variable element according to the formed body of the present invention has a pixel array in which pixels having a diffraction grating pattern and a gap of any size not having a diffraction grating are continuously arranged so as to have a frequency (first 1)), by printing a line drawing (second frequency) of a basic image by a line or curved line having a frequency different from the frequency of the optical change element on the optical change element, The anti-counterfeiting can be improved by the moire phenomenon that occurs in the image where the first frequency and the second frequency, which are different in frequency, overlap.
基材上の光学的変化素子の回折格子幅を150μmとし、回折格子角度を60度ずつ変化させ、つなぎ目のない回折格子を万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、メッセージ線画の画線配列を背景画像部の線画より150μmずらしてレリーフ模様としてスクリーン版面を製版し、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   The diffraction grating width of the optically variable element on the substrate is set to 150 μm, the diffraction grating angle is changed by 60 degrees, and the basic image is formed on a line pattern of seamless diffraction gratings on a line pattern of 150 μm. The screen plate is made as a relief pattern by shifting the width interval of 150 μm, the ink film thickness of 20 μm, and the line arrangement of the message line drawing from the line drawing of the background image portion by 150 μm, and the screen is made of UV-curing transparent ink having no color tone Printing was performed to obtain a formed body.
本発明の形成体による光学的変化素子の回折格子模様が周波数を持つように配列した画素配列と、その光学的変化素子上に、光学的変化素子の画素配列と同じ周波数により基本画像が万線または曲万線などのレリーフ模様として印刷し、且つ、基本画像のメッセージ画像部または背景画像部が、光学的変化素子の画素配列と平行に印刷することにより、メッセージ画像部と背景画像部の異なったモアレ現象によって、偽造防止の向上を図ることができる。   A pixel array in which the diffraction grating pattern of the optically variable element according to the formed body of the present invention is arranged to have a frequency, and a basic image on the optically variable element having the same frequency as the pixel array of the optically variable element. Or, it is printed as a relief pattern such as curved lines, and the message image portion or background image portion of the basic image is printed in parallel with the pixel arrangement of the optical change element, so that the message image portion and the background image portion are different. The anti-counterfeiting can be improved by the moire phenomenon.
基材上の光学的変化素子の回折格子幅を150μmとし、回折格子角度を60度ずつ変化させ、つなぎ目のない回折格子を万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、メッセージ線画の画線配列を背景画像部の線画より150μmずらしてレリーフ模様としてスクリーン版面を製版し、回折格子模様の配列角度と基本画像の配列角度を5度傾けて、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   The diffraction grating width of the optically variable element on the substrate is set to 150 μm, the diffraction grating angle is changed by 60 degrees, and the basic image is formed on a line pattern of seamless diffraction gratings on a line pattern of 150 μm. The screen plate is made as a relief pattern by shifting the width interval of 150 μm, the ink film thickness of 20 μm, and the image line arrangement of the message line drawing from the line drawing of the background image portion by 150 μm. The arrangement angle of the diffraction grating pattern and the arrangement angle of the basic image Was screen-printed with an ultraviolet curable transparent ink having no color tone, and a formed body was obtained.
更に、本発明の形成体による光学的変化素子において、回折格子模様を持つ画素と、回折格子を持たない任意の大きさの間隙が周波数を持つように連続的に配列された画素配列と、その光学的変化素子上に、光学的変化素子の画素配列の周波数と同じ周波数により基本画像の線画を万線または曲万線などで角度を変えて印刷することにより、角度が異なっている光学的変化素子の画素配列と基本画像の線画が重なった部分で画像に発生するモアレ現象によって、偽造防止の向上を図ることができる。   Further, in the optical change element according to the formed body of the present invention, a pixel array having a diffraction grating pattern, a pixel array in which gaps of any size without a diffraction grating are continuously arranged to have a frequency, and Optical changes with different angles by printing a line drawing of the basic image on the optical change element at the same frequency as the frequency of the pixel array of the optical change element at different angles such as lines or curved lines. Forgery prevention can be improved by the moire phenomenon that occurs in the image where the pixel arrangement of the element and the line image of the basic image overlap.
基材上の光学的変化素子の回折格子幅を150μmとし、回折格子角度を60度ずつ変化させ、つなぎ目のない回折格子を万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、メッセージ線画の画線配列を背景画像部の線画より150μmずらしてレリーフ模様としてスクリーン版面を製版し、回折格子模様の配列角度とメッセージ画像部の配列角度は0度(平行)にし、背景画像部の配列角度を5度傾けて、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。   The diffraction grating width of the optically variable element on the substrate is set to 150 μm, the diffraction grating angle is changed by 60 degrees, and the basic image is formed on a line pattern of seamless diffraction gratings on a line pattern of 150 μm. The width of the width is 150 μm, the ink film thickness is 20 μm, the image line arrangement of the message line drawing is shifted by 150 μm from the line drawing of the background image portion, the screen printing plate is made as a relief pattern, the arrangement angle of the diffraction grating pattern and the arrangement of the message image portion The angle was set to 0 degrees (parallel), the array angle of the background image portion was inclined by 5 degrees, and screen printing was performed with an ultraviolet curable transparent ink having no color tone to obtain a formed body.
基材上の光学的変化素子の回折格子幅を150μmとし、回折格子角度を60度ずつ変化させ、つなぎ目のない回折格子を万線模様として配列したものの上に、基本画像を線幅150μm、線幅の間隔を150μm、インキの膜厚を20μm、メッセージ線画の画線配列を背景画像部の線画より150μmずらしてレリーフ模様としてスクリーン版面を製版し、回折格子模様の配列角度とメッセージ画像部の配列角度は5度傾けて、また背景画像部の配列角度は0度(平行)として、色調を持たない紫外線硬化型の透明インキによりスクリーン印刷を行い、形成体を得た。実施例8は実施例7における背景画像部とメッセージ画像部の配列角度を変更したものである。   The diffraction grating width of the optically variable element on the substrate is set to 150 μm, the diffraction grating angle is changed by 60 degrees, and the basic image is formed on a line pattern of seamless diffraction gratings on a line pattern of 150 μm. The width of the width is 150 μm, the ink film thickness is 20 μm, the image line arrangement of the message line drawing is shifted by 150 μm from the line drawing of the background image portion, the screen printing plate is made as a relief pattern, the arrangement angle of the diffraction grating pattern and the arrangement of the message image portion The angle was tilted by 5 degrees and the arrangement angle of the background image portion was 0 degrees (parallel), and screen printing was performed with a UV curable transparent ink having no color tone to obtain a formed body. In the eighth embodiment, the arrangement angle of the background image portion and the message image portion in the seventh embodiment is changed.
更に、本発明の形成体による光学的変化素子において、回折格子模様を持つ画素と、回折格子を持たない任意の大きさの間隙が周波数を持つように連続的に配列された画素配列と、その光学的変化素子上に、光学的変化素子の画素配列と同じ周波数により万線または曲万線などの基本画像の線画をレリーフ模様として印刷し、且つ、基本画像のメッセージ画像部または背景画像部のうちいずれか一つが、光学的変化素子の画素配列と平行に印刷され、もう一方は画素配列の角度と異なるように印刷することにより、同じ周波数が重なった部分で画像に発生するモアレ現象と、さらにメッセージ画像部と背景画像部の異なったモアレ現象によって、偽造防止の向上を図ることができる。   Further, in the optical change element according to the formed body of the present invention, a pixel array having a diffraction grating pattern, a pixel array in which gaps of any size without a diffraction grating are continuously arranged to have a frequency, and A line image of a basic image such as a line or a curved line is printed as a relief pattern on the optical change element at the same frequency as the pixel arrangement of the optical change element, and the message image portion or background image portion of the basic image is printed. One of them is printed in parallel with the pixel array of the optically changing elements, and the other is printed so as to be different from the angle of the pixel array. Furthermore, forgery prevention can be improved by the different moire phenomenon between the message image portion and the background image portion.
本発明の形成体構成及び線画構成を示す図である。It is a figure which shows the formation body structure and line drawing structure of this invention. 図1におけるA-A'断面図を示す図である。It is a figure which shows the AA 'sectional drawing in FIG. 本発明による形成体の観察角度における光学的変化の模式図である。It is a schematic diagram of the optical change in the observation angle of the formation body by this invention. 本発明の形成体を任意の角度によって観察を行ったとき、光学的変化素子のみが観察される様子を示す図である。It is a figure which shows a mode that only an optical change element is observed when the formation body of this invention is observed from arbitrary angles. 本発明の形成体を任意の角度によって観察を行ったとき、メッセージ画像がポジ画像として観察される様子を示す図である。It is a figure which shows a mode that a message image is observed as a positive image, when the formation body of this invention is observed from arbitrary angles. 本発明の形成体を任意の角度によって観察を行ったとき、メッセージ画像がネガ画像として観察される様子を示す図である。It is a figure which shows a mode that a message image is observed as a negative image, when the formation body of this invention is observed from arbitrary angles. 光学的変化素子の回折格子模様の配列による周波数と、背景画像部の線画による周波数によってモアレが発生している様子を示す図である。It is a figure which shows a mode that a moire has generate | occur | produced with the frequency by the arrangement | sequence of the diffraction grating pattern of an optical change element, and the frequency by the line drawing of a background image part.
符号の説明Explanation of symbols
1 基材
2 背景画像部線画
3 メッセージ画像部線画
4 光学的変化素子
5 回折格子
6 形成体
DESCRIPTION OF SYMBOLS 1 Base material 2 Background image part line drawing 3 Message image part line drawing 4 Optical change element 5 Diffraction grating 6 Forming body

Claims (5)

  1. 基材上の少なくとも一部に光学的変化素子から成る金属光沢層が設けられ、前記金属光沢層上の少なくとも一部に、盛り上がりのある透明なインキ及び半透明なインキのうち少なくとも一つのインキによる線画から構成される基本画像部が、前記光学的変化素子の回折格子を損傷及び変形させない印刷方式で印刷されており、前記基本画像部は背景画像部と少なくとも一つ以上のメッセージ画像部とに区分され、前記背景画像部と前記メッセージ画像部はそれぞれ互いに配列方向が異なる等間隔の膜厚のある線画で形成され、前記光学的変化素子の回折格子模様の画素の配列から生じる周波数と、前記膜厚のある線画から生じる周波数によって、観察角度を変化させることにより動きのあるモアレ画像が得られ、前記光学的変化素子の回折格子模様の画素の配列には、回折格子の角度を変えて万線模様として配列したものが含まれることを特徴とする真偽判別可能な形成体。 A metallic gloss layer comprising an optical change element is provided on at least a part of the substrate, and at least a part of the metallic gloss layer is formed of at least one of a transparent transparent ink and a translucent ink. A basic image portion composed of a line drawing is printed by a printing method that does not damage or deform the diffraction grating of the optically variable element, and the basic image portion includes a background image portion and at least one message image portion. The background image portion and the message image portion are each formed by a line drawing having a film thickness of equal intervals different from each other in the arrangement direction, and the frequency generated from the arrangement of the diffraction grating pattern pixels of the optical change element, A moving moire image can be obtained by changing the observation angle according to the frequency generated from the line drawing having a film thickness. The arrangement of the pixels of the pattern, authenticity discrimination possible formers, characterized in that include those arranged as parallel line pattern by changing the angle of the diffraction grating.
  2. 前記背景画像部の線画及び前記メッセージ画像部のそれぞれ互いに配列方向が異なる線画の画線幅がそれぞれ30μmから1000μmの範囲であることを特徴とした請求項記載の真偽判別可能な形成体。 Authenticity discrimination possible formation of claim 1, wherein the wherein the background image of the line drawing and the respective image line width in the arrangement direction are different line drawing together of the message image portion is in the range of 1000μm from 30μm respectively.
  3. 前記盛り上がりのある透明なインキ及び半透明なインキのうち少なくとも一つのインキによる等間隔の線画の画線高さがそれぞれ5μmから250μmの範囲であることを特徴とした請求項1または2記載の真偽判別可能な形成体。 3. A true line according to claim 1 or 2, wherein the line heights of equally spaced line drawings of at least one of the raised transparent ink and translucent ink are in the range of 5 μm to 250 μm, respectively. A formation that can be identified falsely.
  4. 前記光学的変化素子の回折格子を、損傷及び変形させない凹凸画線を形成する印刷方式により印刷することを特徴とした請求項1、2または3記載の真偽判別可能な形成体の作製方法。 The method for producing a formed body capable of authenticating authenticity according to claim 1, 2 or 3, wherein the diffraction grating of the optically variable element is printed by a printing method for forming an uneven image line that is not damaged or deformed.
  5. 前記凹凸画線を形成する印刷方式は、スクリーン印刷、パッド印刷または発泡インキを使用したオフセット印刷であることを特徴とする請求項1、2、3または4記載の真偽判別可能な形成体の作製方法。The printing method for forming the concavo-convex image line is screen printing, pad printing, or offset printing using foamed ink. Manufacturing method.
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WO2003013871A1 (en) * 2001-08-06 2003-02-20 National Printing Bureau, Incorporated Administrative Agency Authenticatable printed matter and its production method

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