JPH08197828A - Formation of copy preventing pattern and printed matter - Google Patents

Formation of copy preventing pattern and printed matter

Info

Publication number
JPH08197828A
JPH08197828A JP6206140A JP20614094A JPH08197828A JP H08197828 A JPH08197828 A JP H08197828A JP 6206140 A JP6206140 A JP 6206140A JP 20614094 A JP20614094 A JP 20614094A JP H08197828 A JPH08197828 A JP H08197828A
Authority
JP
Japan
Prior art keywords
pattern
line
latent image
image
lines
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Granted
Application number
JP6206140A
Other languages
Japanese (ja)
Other versions
JP3368327B2 (en
Inventor
Masato Kiuchi
正人 木内
Maroka Abe
真路花 阿部
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
National Printing Bureau
Original Assignee
Printing Bureau Ministry of Finance
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Printing Bureau Ministry of Finance filed Critical Printing Bureau Ministry of Finance
Priority to JP20614094A priority Critical patent/JP3368327B2/en
Publication of JPH08197828A publication Critical patent/JPH08197828A/en
Application granted granted Critical
Publication of JP3368327B2 publication Critical patent/JP3368327B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE: To form a copy preventing pattern by making the sum image line width of two or more image lines of a latent image applied part equal to the image line width of one image line of a latent image unapplied part. CONSTITUTION: The boundary line 15 on the image lines of latent image applied and unapplied parts is set so as to cross the straight line 11 coming into contact with a fundamental curve 8 at an almost right angle at the intersecting point 10 of the fundamental curve 8 constituting a copy preventing pattern and the contour line 9 of a latent image. Therefore, the boundary line 15 of the image lines 12 of the latent image unapplied part and the image lines 13 of the latent image applied part and the contour line 9 of the latent image have no regularity in the same direction. When the copy preventing pattern is printed using this image line constitution, the interference of the image lines 13 of the latent image applied part, the image line 12 of the latent image unapplied part and the contour line 9 of the latent image can be prevented.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は、曲画線の集合模様に通
常は肉眼で識別できない潜像を施し、偽造、変造防止を
必要とする印刷物において、複写機により複写した場合
に潜像が発現する複写防止模様の作成方法及びその印刷
物に関するものである。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention applies a latent image which cannot be generally recognized with the naked eye to a collection pattern of curved lines, and in a printed matter requiring forgery and alteration prevention, the latent image is reproduced when copied by a copying machine. The present invention relates to a method for producing a developed copy protection pattern and a printed matter thereof.

【0002】[0002]

【従来の技術】銀行券、株券、債券等の有価証券、各種
証明書及び重要書類等の印刷物において偽造、変造防止
策は重要な要素である。これら印刷物の偽造、変造防止
策は主に幾何学模様を多用化した図柄をデザインに用い
る方法と、印刷物に対し何等かの手段と作用を加えると
目視では認識できなかった潜像を現出するような方法が
ある。前者の代表的な例は、証券印刷物等のデザインに
広く用いられている地紋、彩紋模様、レリーフ模様等が
あり、後者の代表的な例は潜像凹版、複写機で色が正常
に再現されないような機能性インキ、コピー防止画線等
がある。しかし最近のカラー複写機の著しい普及に伴
い、偽造、変造による犯罪が増加する危険性を有してお
り、より一層効果の高い偽造、変造防止策として技術の
開発が望まれていた。
2. Description of the Related Art Counterfeiting and alteration prevention measures are important elements in printed matters such as securities such as banknotes, stock certificates, bonds, various certificates and important documents. Countermeasures against forgery and alteration of these printed materials mainly show a method that uses a design that uses a lot of geometric patterns in the design, and if some means and action are applied to the printed material, a latent image that cannot be visually recognized appears. There is such a method. Typical examples of the former are a tint block pattern, a color pattern, and a relief pattern, which are widely used in the design of printed matters such as securities. The latter representative example is a latent image intaglio, and colors are normally reproduced by a copying machine. There are functional inks and copy protection lines that are not protected. However, with the recent remarkable spread of color copying machines, there is a risk that crimes due to forgery and alteration will increase, and the development of technology as a more effective countermeasure against forgery and alteration has been desired.

【0003】前記の幾何学模様を用いる偽造、変造防止
策としては、地紋、彩紋模様、レリーフ模様等があり、
基本的に一定の画線幅による曲画線の集合によって模様
を構成しているものである。これらの模様は印刷物のデ
ザイン等の意匠性を加味し、偽造、変造防止策を施すこ
とができ、模様を複雑にすることによって偽造物におけ
る同一の模様を作製しようとするのを困難とし、写真製
版装置による抽出または複写機では再現されにくい色彩
を用いたり、複雑な曲画線にして複写機及びスキャナー
の走査入出力に対するモアレを発生させたりすることで
偽造防止策としての役割を高めている。また、前記模様
類は証券印刷物等のデザインにおいて世界的に広く用い
られていると同時に、銀行券、株券、債券等の金銭的価
値を有する印刷物の模様として古くから用いられていた
ことにより、現在でも一般的に高級感を印象づけるデザ
インとして重要な模様となっている。従って、銀行券、
株券、債券等の有価証券、各種証明書及び重要書類等の
印刷物において、地紋、彩紋模様、レリーフ模様等はデ
ザイン上欠かすことのできない模様である。しかし、最
近では高機能化した写真製版装置または複写機の出現に
よって充分な偽造、変造防止効果をもたらしていないと
いう欠点がある。
Countermeasures against forgery and alteration using the above-mentioned geometric pattern include a tint block, a color pattern, and a relief pattern.
Basically, a pattern is composed of a set of curved strokes having a constant stroke width. These patterns can be counterfeited or counterfeited in consideration of design characteristics such as the design of printed matter, making it difficult to make the same pattern in a forged product by complicating the pattern, Its role as an anti-counterfeiting measure is enhanced by using a color that is difficult to reproduce by a plate-making device or by using a color that is difficult to reproduce in a copying machine, or by creating a complicated curved line to generate moire for scanning input / output of a copying machine and a scanner. . In addition, the patterns are widely used worldwide in the design of securities prints, etc., and at the same time, they have been used for a long time as patterns of printed matter with monetary value such as banknotes, stocks, bonds, etc. However, in general, it is an important pattern as a design that impresses with luxury. Therefore, banknotes,
In printed matters such as securities such as stock certificates and bonds, various certificates and important documents, a tint block, a color pattern, a relief pattern and the like are indispensable in terms of design. However, recently, with the advent of highly functional photoengraving apparatuses or copying machines, there is a drawback in that they do not provide sufficient forgery and alteration prevention effects.

【0004】また前記の印刷物に対し何等かの手段と作
用を加えると、目視では認識できなかった潜像を現出す
るような方法の代表的な技術として、一般的にコピー防
止画線と称する一連の技術がある。即ち複写機によって
複写することにより、印刷物中に施してあった潜像が現
出するものである。このような複写機による偽造防止に
適する印刷物においては、基紙表面に例えば85線3
0%の網点である微細構成素子よりなる文字を表示した
潜像を銀インキを用いて印刷し、次にこの潜像以外の余
白部に前記潜像より粗または密(例えば150線30
%)の網点で印刷を施すと共に、前記潜像の上面に彩紋
や地紋等の印刷模様を施す、複写による偽造防止に適す
る潜像入り印刷物(特開昭57−20395号公報)が
あり、また用紙の表面に網点で潜像を印刷し、万線で
潜像と同濃度の背景を同時印刷し、背景を含む潜像の上
面に装飾模様をコピーで再現されない程度の薄色の透明
性インキで重ね刷りすることにより、印刷物表面を体裁
よく仕上げ、コピーにかけると模様は見えなくなり、背
景は再現されると共に潜像は再現されず、背景と潜像の
濃度差が歴然となって複写物であることが一見して分か
る、複写防止に適する印刷物(特開昭60−79991
号公報)があり、更に150線10%の網点よりなる
潜像をそなえ、且つ潜像周囲の白地面に50〜60線1
0%程度の万線よりなる背景を備えた潜像版を用いて、
用紙の表面に濃色の印刷を施し、背景の万線と干渉した
時にモアレ模様を形成する平行線よりなる波形パターン
を備えたオーバープリント版を用いて、用紙表面に複写
機で再生されない淡色の重ね刷りを施すことにより、印
刷物の表面は肉眼を幻惑するモアレ模様が形成されるの
で潜像の存在は識別困難となり、複写機にかけると潜像
と波形パターンは再生されずに背景のみが再生されるの
で、潜像が背景と区別して認められる、印刷物における
複写防止用潜像カムフラージ法(特開昭60−8738
0号公報)等が開示されている。
Further, as a typical technique of displaying a latent image which cannot be visually recognized by applying some means and action to the above-mentioned printed matter, it is generally called a copy prevention image line. There are a series of technologies. That is, the latent image applied to the printed matter appears by copying with a copying machine. In such a printed matter suitable for preventing forgery by a copying machine, for example, 85 lines 3 are printed on the surface of the base paper.
A latent image on which characters composed of fine constituent elements, which are 0% halftone dots, is displayed is printed using silver ink, and then, in a blank portion other than this latent image, a coarser or denser area (for example, 150 lines 30).
%) Printed with a halftone dot and a printed pattern such as a tint pattern or a tint pattern on the upper surface of the latent image, which is suitable for preventing forgery by copying (JP-A-57-20395). In addition, a latent image is printed on the surface of the paper with halftone dots, a background with the same density as the latent image is printed simultaneously with a line, and a decorative pattern on the upper surface of the latent image including the background is of a light color that is not reproduced by copying. By overprinting with transparent ink, the surface of the printed matter is finished in a good appearance, and when copied, the pattern disappears, the background is reproduced and the latent image is not reproduced, and the density difference between the background and the latent image becomes obvious. A printed material suitable for copy prevention, which can be seen at a glance as a copied material (Japanese Patent Laid-Open No. 60-79991).
Gazette), which further comprises a latent image consisting of 150 lines and 10% halftone dots, and 50 to 60 lines 1 on the white ground around the latent image.
Using a latent image plate with a background consisting of about 0% lines
A dark color is printed on the surface of the paper, and an overprint plate with a wavy pattern consisting of parallel lines that forms a moire pattern when it interferes with the background lines is used. Overprinting creates a moire pattern on the surface of the printed matter that is dazzling to the naked eye, making it difficult to identify the presence of a latent image.When applied to a copier, the latent image and waveform pattern are not reproduced, but only the background is reproduced. As a result, the latent image is recognized as distinguished from the background, and a latent image cam-image method for preventing copy in printed matter (Japanese Patent Laid-Open No. 60-8738).
No. 0) and the like are disclosed.

【0005】前記公報等による印刷物はいずれも網点も
しくは万線等の点及び線が一定周期で連続配置する画線
群(以下、スクリーンパターンと称する)の粗密によっ
て潜像が施され、図1の印刷物(1)に示すような印刷
面全体の模様(2)が均一濃度を持ったスクリーンパタ
ーンとなっている。前記潜像が施された印刷物(1)を
複写機によって複写した際、再生されない密構成のスク
リーンパターン(3)と、再生される粗構成のスクリー
ンパターン(4)とは図2の複写物(1’)の模様
(2’)に示すように濃度差が生じて、再生される粗構
成のスクリーンパターン(4’)に対し再生されない密
構成のスクリーンパターン(3’)の潜像部分を現出す
るようにして、複写物であることが一目瞭然となるよう
にしたものであるが、印刷面全体が均一濃度を持ったス
クリーンパターンという特徴から、肉眼視においても同
一印刷面上の異なるスクリーンパターンによって、スク
リーン形状の違いによる異別感及びスクリーンパターン
ゆえに生ずる潜像の境界線との干渉部(5)により、潜
像の存在を識別できてしまう欠点がある。前記欠点を解
決する方法として、前記公報等はいずれも潜像をカムフ
ラージするために別の模様や薄色の透明インキ、淡色の
重ね刷りを施しているが、前記方法は潜像を識別しにく
くする点では有効であるが、工程数が増え経済的でない
という欠点を有している。
In each of the printed materials according to the above publications, a latent image is formed by the density of image lines (hereinafter, referred to as a screen pattern) in which dots and lines such as lines are continuously arranged at a constant cycle. The pattern (2) on the entire printed surface as shown in the printed matter (1) is a screen pattern having a uniform density. When the printed matter (1) provided with the latent image is copied by a copying machine, the dense screen pattern (3) which is not reproduced and the coarse screen pattern (4) which is reproduced are the copied matter of FIG. As shown in the pattern (2 ') of 1'), the latent image portion of the screen pattern (3 ') of the dense structure which is not reproduced is displayed in contrast to the screen pattern (4') of the coarse structure which is reproduced due to the density difference. Although it is made clear so that it is a copy, it is a screen pattern with uniform density over the entire printing surface. Therefore, there is a drawback that the existence of the latent image can be identified by the sense of distinction due to the difference in the screen shape and the interference portion (5) with the boundary line of the latent image caused by the screen pattern. As a method for solving the above-mentioned drawbacks, all of the above-mentioned publications and the like provide different patterns, light-colored transparent ink, and light-color overprinting in order to camouflage the latent image, but the method is difficult to identify the latent image. However, it has the drawback of increasing the number of steps and not being economical.

【0006】また、本願発明者らは用紙表面に網点又
は万線等のパターンからなる潜像と、該潜像周囲に前記
潜像とは粗密が異なるパターンからなる背景を1色で同
時印刷した印刷物において、該潜像を施した潜像模様が
肉眼では識別されないことを特徴とする複写防止に適す
る印刷物(特開平4−170569号公報)として、潜
像をカムフラージするための別の模様や薄色の透明イン
キさらには、淡色の重ね刷りを施さず、白抜きの円形模
様や、全面的なスクリーンパターンに対する部分的なス
クリーンパターンの網点パーセントを増加した同心円模
様等で、カムフラージする方法を既に出願しているが、
前述のとおり前記従来技術は何れもスクリーンパターン
により潜像を施しているため潜像の視認は容易であり、
単色印刷物では印刷物に別途、上書される文字等の情報
がカムフラージの役割を果たさなければならないことか
ら、あくまでも文書等の背景をなす地紋模様にしか活用
できず、潜像を施した単色印刷画線模様そのものを彩紋
模様のごとく自由なデザイン化した模様にしたり、装飾
効果をもった美術的な印刷物にすることは不可能であ
る。更に前記した従来技術の方法はいずれも網点もしく
は万線等の点及び線の粗密からなるスクリーンパターン
でなければならないため、地紋、彩紋模様を多用してい
る銀行券、株券、債券などの有価証券等の既存製品に用
いるには適さないという欠点があった。
Further, the inventors of the present invention simultaneously print, with one color, a latent image having a pattern of halftone dots or lines on the surface of the paper and a background having a pattern having a different density from the latent image around the latent image. In the printed matter, the latent image pattern provided with the latent image is not discernible by the naked eye, and as a printed matter suitable for copy prevention (JP-A-4-170569), another pattern for camouflaging the latent image or A method of camouflaging with a light-colored transparent ink, and without performing light-color overprinting, with a white circular pattern or a concentric pattern with an increased dot percentage of the partial screen pattern with respect to the entire screen pattern. I have already applied,
As described above, in each of the above-mentioned conventional techniques, the latent image is easily visible because the latent image is formed by the screen pattern.
In the case of a single-color printed matter, the information such as characters to be overwritten separately on the printed matter must play the role of camouflage, so it can only be used for the tint block pattern that forms the background of documents, etc. It is impossible to make the line pattern itself into a freely designed pattern such as a sill pattern, or to make an artistic printed material with a decorative effect. Furthermore, since all of the above-mentioned conventional methods must be screen patterns consisting of dots and lines such as lines and the like, and the density of lines and lines, a tint block, a stipple pattern, such as banknotes, stock certificates, bonds, etc. It has a drawback that it is not suitable for use in existing products such as securities.

【0007】[0007]

【発明が解決しようとする課題】本発明は上述の点に鑑
みなされたもので、複写防止を必要とする各種証明書及
び重要書類等をはじめ、銀行券、株券、債券などの有価
証券等に適用が可能な、曲画線の集合模様に通常は肉眼
で識別できない潜像を施すことによって、カムフラージ
のための重ね刷りも必要とせず、複写機による偽造、変
造防止効果を有する複写防止模様の作成方法及びその印
刷物の提供を目的としたものである。
SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and it can be applied to securities such as banknotes, stock certificates, bonds, etc., including various certificates and important documents requiring copy protection. By applying a latent image that is not generally visible to the naked eye to the set pattern of curved lines that can be applied, overprinting for camouflage is not required and a copy prevention pattern that has the effect of preventing forgery and alteration by a copier The purpose of the method is to provide a preparation method and a printed matter thereof.

【0008】[0008]

【課題を解決するための手段】本発明の複写防止模様の
画線構成は、曲画線の集合模様を、潜像を施さない部分
を一本線、潜像を施した部分を二本線以上の画線で表現
し、潜像を施した部分の二本線以上の画線は、二本線以
上の画線の合計の画線幅が、潜像を施さない部分の一本
線の画線の画線幅と等しく、且つ、潜像を施さない部分
の一本線から分岐することを特徴としている。更に、潜
像を施さない部分と潜像を施した部分の画線上の境界線
が、曲画線の集合模様を構成する基本曲線と潜像の輪郭
線の交点において基本曲線に接する直線に対し、略直角
に交わる直線となることを特徴とする。
In the image line construction of the copy protection pattern of the present invention, a collective pattern of curved lines has one line for a portion without a latent image and two or more lines for a portion with a latent image. An image with two or more lines in the latent image is represented by a line, and the total line width of the lines with two or more lines is the image of one line of the line without the latent image. It is characterized by branching from a single line that is equal to the width and has no latent image. Furthermore, the boundary line on the image line between the part without the latent image and the part with the latent image is a straight line tangent to the basic curve at the intersection of the basic curve and the contour line of the latent image, which constitutes the collective pattern of the curved lines. , Is a straight line that intersects at a substantially right angle.

【0009】[0009]

【作用】従来の複写機による偽造防止に適する印刷物
が、網点もしくは万線等のスクリーンパターンの粗密に
よって潜像が施され、印刷面全体が均一濃度を持ったス
クリーンパターンとなっているのに対し、本発明の画線
構成は、集合模様をなす曲画線の、潜像を施さない部分
を一本線、潜像を施した部分を二本線以上の画線で表現
し、潜像を施した部分の二本線以上の画線は、二本線以
上の画線の合計の画線幅が、潜像を施さない部分の一本
線の画線の画線幅と等しく、且つ、潜像を施さない部分
の一本線の画線から分岐する画線によって複写防止模様
が構成される。従って本発明の複写防止模様を印刷時の
変化、即ち膨張値等を加味した画線で印刷した印刷物を
全体で観察した場合、観察者には潜像を施した部分が二
本線以上の画線であるにもかかわらず、潜像を施さない
部分の延長、即ち、あたかも一本線の画線であるかのよ
うに認識されることにより、肉眼では潜像をまったく識
別できなくすることを可能にしている。従って、本発明
の画線構成を有した印刷物を複写機により複写すると、
複写機の解像力から、潜像を施さない部分の一本線の画
線は再生され、潜像を施した部分の二本線以上の画線は
再生されないか、もしくは再生不良により、潜像を施し
た部分と潜像を施さない部分に濃度差が生じ潜像が発現
する。
A printed matter suitable for preventing forgery by a conventional copying machine has a latent image formed by the density of screen patterns such as halftone dots or lines, and the entire printed surface has a screen pattern with uniform density. In contrast, the streak structure of the present invention expresses a latent image by expressing a part of the curved streak forming a collective pattern without a latent image with one line and a part with a latent image with two or more lines. The image width of two or more lines in the shaded area is such that the total image width of the two or more line images is equal to the image line width of the single line image in the non-laden area and the latent image is applied. The copy-preventing pattern is formed by an image line branched from the single-line image line of the non-existing portion. Therefore, when the printed matter on which the copy-preventing pattern of the present invention is printed with a change in printing, that is, an expansion value is taken into consideration, is observed as a whole, the observer observes that the latent image portion has two or more lines. Despite this, it is possible to make the latent image indistinguishable by the naked eye by extending the portion without the latent image, that is, by recognizing it as if it were a single-line drawing line. ing. Therefore, when a printed matter having the image structure of the present invention is copied by a copying machine,
Due to the resolving power of the copying machine, the single-line image of the part where the latent image is not applied is reproduced, and the image of two or more lines of the part where the latent image is applied is not reproduced or the latent image is applied due to poor reproduction. A density difference occurs between the portion and the portion not subjected to the latent image, and the latent image is developed.

【0010】更に、潜像を施さない部分と潜像を施した
部分の画線上の境界部、即ち画線上の境界線は、複写防
止模様を構成する基本曲線と潜像の輪郭線の交点におい
て基本曲線に接する直線に対し、略直角に交わる直線と
することで、基本曲線の曲線形状に応じて各々の交点で
異なる角度を有する。従って潜像を施さない部分と潜像
を施した部分の画線上の境界線は、潜像の輪郭線に関係
なく複写防止模様の曲線形状によって常に変化し、潜像
を施さない部分と潜像を施した部分の各々の境界線が
一方向にならないので、潜像の輪郭線と複写防止模様の
画線の干渉を防止でき、肉眼による潜像の非視認性に有
効に作用している。
Further, the boundary portion on the image line between the portion on which the latent image is not formed and the portion on which the latent image is formed, that is, the boundary line on the image line is at the intersection of the basic curve forming the copy protection pattern and the outline of the latent image. By forming a straight line that intersects with a straight line that is in contact with the basic curve at a substantially right angle, the intersections have different angles according to the curve shape of the basic curve. Therefore, the boundary line on the image line between the non-latent imaged portion and the latent imaged portion is constantly changed by the curved shape of the copy protection pattern regardless of the latent image contour line, and the latent imageless portion and the latent image are not changed. Since the boundary lines of the marked parts do not have the same direction, it is possible to prevent the contour line of the latent image from interfering with the image line of the copy protection pattern, which is effective for non-visibility of the latent image by the naked eye. It is working.

【0011】[0011]

【実施例】本発明の複写防止模様の画線構成を図によっ
て説明する。本発明の画線構成による複写防止模様は、
本来、図3に示すように潜像を施さない部分の画線
(6)と潜像を施した部分(7)の曲画線によって構成
されるものであるが、本発明の画線構成をより詳細にす
るために、前記曲画線を直画線と仮定して図4を用いて
説明する。図4は潜像を施さない部分の画線と、潜像を
施した部分の画線が直線で交わった場合と仮定して、各
々の画線上の境界部分を拡大した図である。従って、本
発明の複写防止模様を曲画線によって構成した際の、潜
像を施さない部分と潜像を施した部分の画線構成を示し
た図5における模様を構成する基本をなす基本曲線
(8)と潜像の輪郭線(9)の交点(10)において、
基本曲線(8)に接する直線(11)は、図4において
は基本曲線(8)と同一となる。
DESCRIPTION OF THE PREFERRED EMBODIMENTS The drawing line construction of the copy protection pattern of the present invention will be described with reference to the drawings. The copy protection pattern according to the streak structure of the present invention is
Originally, as shown in FIG. 3, it is composed of an image line (6) of a portion without a latent image and a curved image line of a portion (7) with a latent image. In order to make it more detailed, the curved line is assumed to be a direct line and will be described with reference to FIG. FIG. 4 is an enlarged view of the boundary portion on each image line, assuming that the image line of the part without the latent image and the image line of the part with the latent image intersect with each other in a straight line. Therefore, when the copy protection pattern of the present invention is composed of curved lines, the basic curve forming the basic pattern forming the pattern in FIG. 5 which shows the image line structure of the part without the latent image and the part with the latent image. At the intersection (10) between (8) and the contour line (9) of the latent image,
The straight line (11) tangent to the basic curve (8) is the same as the basic curve (8) in FIG.

【0012】まず図4における、潜像を施した部分の二
本線以上の画線(13)の画線幅の合計が、潜像を施さ
ない部分の一本線の画線(12)の画線幅と等しくする
には、画線設計の段階で、潜像を施さない部分の画線幅
をA、潜像を施した部分の二本線以上の画線幅の各々一
本の画線幅をa、潜像を施した部分の画線の分岐する本
数をn(図4では二本)としたとき、a=A/nによっ
て可能となる。しかし、本発明の画線構成による複写防
止模様を印刷する場合には、前述のように本発明の効果
を奏するのは、潜像を施さない部分と潜像を施した部分
とに用いる画線幅によることから、印刷時における画線
幅の変化を考慮することが好ましい。すなわち、前述の
印刷時における画線幅への影響を加味した画線設計を行
う場合は、図4に示す、印刷をした際の画線片側に生じ
る膨張値(または収縮値)をχ’としたとき、印刷物上
での潜像を施さない部分の画線(12)の画線幅はA+
χ’+χ’となり、印刷物上で潜像を施した部分の各々
の画線(13)の画線幅はa+χ’+χ’であるから、
本発明の効果を奏する画線構成は、画線設計の段階にお
いて、潜像を施さない一本線の画線幅Aと潜像を施した
二本線以上の各々の一本の画線幅aは、a={A−
(χ’+χ’)(n−1)}/nの関係を満足すれば良
い。
First, in FIG. 4, the sum of the image widths of the image lines (13) of two or more lines in the latent image-applied part is the image line of the image line (12) of one line in which the latent image is not applied. In order to make the width equal to the width, at the stage of drawing line design, the drawing line width of the part where the latent image is not applied is A, and the drawing line width of two or more lines of the part where the latent image is applied is one line drawing width each. a, where n (two in FIG. 4) is the number of branches of the image lines in the latent imaged area, a = A / n. However, in the case of printing a copy protection pattern according to the image line construction of the present invention, the effect of the present invention is exerted as described above because the image lines used in the non-latent image portion and the latent image portion are obtained. Since it depends on the width, it is preferable to consider a change in the line width during printing. That is, in the case of designing an image line in which the influence on the image line width at the time of printing is taken into consideration, the expansion value (or contraction value) generated on one side of the image line at the time of printing as shown in FIG. When this is done, the image width of the image line (12) in the portion where the latent image is not applied on the printed matter is A +
χ '+ χ', and the image width of each image line (13) of the latent imaged portion on the printed matter is a + χ '+ χ'
In the image line configuration that achieves the effect of the present invention, the image line width A of a single line without a latent image and the image line width a of each of two or more lines with a latent image are , A = {A-
It suffices to satisfy the relationship of (χ '+ χ') (n-1)} / n.

【0013】次に、本発明の複写防止模様の画線構成
は、潜像を施した部分の二本線以上の画線は、潜像を施
さない部分の一本線から分岐する。印刷物上で潜像を施
した部分の各々の画線(13)間の間隔をSとしたと
き、図4に示すSは、潜像が肉眼で視認されず、且つ複
写機では解像されない範囲の30μm〜60μmで設定
すれば良い。
Next, in the image line structure of the copy protection pattern of the present invention, two or more image lines of the latent image-bearing part are branched from one line of the latent image-free part. S is the range in which the latent image is not visible to the naked eye and is not resolved by the copying machine, where S is the distance between the respective image lines (13) of the latent imaged portion on the printed matter. 30 μm to 60 μm.

【0014】次に、本発明の複写防止模様を印刷物とし
たとき、潜像を施した部分の二本線以上の画線を目視し
た場合には、潜像を施さない部分の一本線と連続する一
本線に見える。図3における潜像を施さない部分の画線
(6)から分岐する潜像を施した部分の画線(7)を設
計するには、図4に示す前記基本曲線(8)から、画線
設計の段階で最も外側に位置する潜像を施した部分の画
線幅aの中心をなす潜像曲線(14)までの間隔と、二
本以上ある潜像曲線(14)において隣接する各々の潜
像曲線(14)の間隔を得る必要があり、前記基本曲線
(8)から最も外側に位置する前記潜像曲線(14)ま
での間隔をW’、隣接する各々の潜像曲線(14)の間
隔をWとすると、前述の本発明の複写防止模様印刷物を
目視したときに、連続した一本線に見えるようにするに
は、潜像を施した部分の二本線の画線(13)と潜像を
施さない部分の画線(12)の位置関係は、W’=
{(n−1)(S+χ’+χ’+a)}/2及びW=2
W’/(n−1)で求めることによって、複写防止効果
の高い複写防止模様及び印刷物を得ることができる。
Next, when the copy-preventing pattern of the present invention is used as a printed matter, when two or more lines of the latent image-bearing portion are visually observed, they are continuous with one line of the latent-image-free portion. It looks like a single line. In order to design the image line (7) of the latent image-applied portion that branches from the image line (6) of the non-latent image shown in FIG. 3, the image line is drawn from the basic curve (8) shown in FIG. At the stage of designing, the distance to the latent image curve (14) that forms the center of the drawing width a of the outermost latent image portion and the two adjacent latent image curves (14) It is necessary to obtain the distance between the latent image curves (14), and the distance from the basic curve (8) to the outermost latent image curve (14) is W ', and each adjacent latent image curve (14) When the distance between the two is W, the visible image of the above-mentioned copy-preventing pattern printed product of the present invention can be seen as a continuous single line. The positional relationship of the image lines (12) in the part where the latent image is not applied is W ′ =
{(N-1) (S + χ '+ χ' + a)} / 2 and W = 2
By obtaining W '/ (n-1), a copy-preventing pattern and a printed matter having a high copy-preventing effect can be obtained.

【0015】更に本発明の複写防止模様における潜像の
非視認性を高める方法として、従来開示されている複写
防止用印刷物は、網点もしくは万線の点及び線が、スク
リーンパターンの粗密によって潜像が施されているた
め、複写防止模様を形成する各々の画線の、潜像を施さ
ない部分と潜像を施した部分の画線上の境界線の方向
が、潜像を施さない部分と潜像を施した部分の境界部に
おいて、同一方向に規則性を持ってしまうために干渉が
生じ潜像が目視で視認されてしまうことから、カムフラ
ージ模様を用いらざるを得ない一要因となっているが、
本発明の画線構成は図5に示すように、潜像を施さない
部分と潜像を施した部分の画線上の境界線(15)が、
複写防止模様を構成する基本曲線(8)と潜像の輪郭線
(9)の交点(10)において、基本曲線(8)に接す
る直線(11)に対し略直角に交わるようにしている。
即ち、図6に示すように、前述した本発明の画線設計方
法を用いた場合であっても、潜像を施さない部分の画線
(12)と潜像を施した部分の画線(13)の境界線
(15)は、潜像の輪郭線(9)と同一方向に規則性を
持ってしまうので、図7に示すように、本来潜像を施さ
ない部分の画線領域である(B)及び、本来潜像を施し
た部分の画線領域である(C)を、(B)領域は潜像を
施した部分の画線と同一になるように、また(C)領域
は潜像を施さない部分の画線と同一になるように画線設
計することにより、図5に示すように、前記境界線(1
5)は前記基本曲線(8)と前記潜像の輪郭線(9)の
交点において、基本曲線(8)に接する直線(11)と
略直角に交わる直線をなすから、潜像を施さない部分の
画線(12)と潜像を施した部分の画線(13)の境界
線(15)と、潜像の輪郭線(9)とは同一方向に規則
性を持たなくしている。よって、本発明による画線構成
を用いた複写防止模様を印刷した場合、潜像を施した部
分の画線(13)と、潜像を施さない部分の画線(1
2)と、潜像の輪郭線(9)との干渉が防止できる。
Further, as a method for enhancing the non-visibility of the latent image in the copy-preventing pattern of the present invention, in the copy-preventing printed matter which has been disclosed hitherto, halftone dots or lines and lines are hidden by the density of the screen pattern. Since the image is applied, the direction of the boundary line on the image line between the non-latent image part and the latent image part of each image line forming the copy protection pattern is the same as the non-latent image part. At the boundary of the portion where the latent image is formed, interference occurs due to the regularity in the same direction, and the latent image is visually recognized, which is one factor that forces the use of the camouflage pattern. However,
As shown in FIG. 5, the streak structure of the present invention is such that the boundary line (15) on the streak line between the non-latent imaged portion and the latent imaged portion is
At the intersection (10) of the basic curve (8) constituting the copy protection pattern and the contour line (9) of the latent image, it intersects with the straight line (11) in contact with the basic curve (8) at a right angle.
That is, as shown in FIG. 6, even when the above-described image line designing method of the present invention is used, the image line (12) of the part where the latent image is not applied and the image line () of the part where the latent image is applied ( Since the boundary line (15) of 13) has regularity in the same direction as the contour line (9) of the latent image, as shown in FIG. 7, it is an image area of a portion where the latent image is not originally applied. (B) and (C), which is the image area of the portion on which the latent image is originally applied, should be the same as the image area of the portion on which the latent image is applied, and (C) area By designing the drawing lines so as to be the same as the drawing lines of the portion where the latent image is not applied, as shown in FIG.
5) is a straight line that intersects the straight line (11) in contact with the basic curve (8) at a substantially right angle at the intersection of the basic curve (8) and the contour line (9) of the latent image. The boundary line (15) between the image line (12) and the image line (13) of the latent image portion and the latent image contour line (9) have no regularity in the same direction. Therefore, when a copy protection pattern is printed using the image line construction according to the present invention, the image line (13) of the portion with the latent image and the image line (1) of the portion without the latent image are printed.
The interference between 2) and the contour line (9) of the latent image can be prevented.

【0016】本発明の実施例をさらに詳細に説明する。
一般的に彩紋模様は、図案に従い数学関数上で描画した
模様であるため、前記模様を作成する装置としては、歯
車、カム等の機械的動作によって描画する装置と、コン
ピュータを用いて二次元座標上の関数により描画する装
置とがあるが、本実施例においては市販のコンピュータ
・グラフィック・デザイン装置(以下CGSという。)
を用いた例で説明する。
The embodiment of the present invention will be described in more detail.
Generally, a color pattern is a pattern drawn on a mathematical function according to a design, and therefore, as a device for creating the pattern, a device for drawing by a mechanical operation of a gear, a cam or the like, and a two-dimensional computer There is a device for drawing by a function on coordinates, but in the present embodiment, a commercially available computer graphic design device (hereinafter referred to as CGS).
An example using will be described.

【0017】本発明においては、前述したように印刷時
の画線の膨張値(または収縮値)を加味して、製版時に
おける画線設計を行うにあたり、予め膨張値(または収
縮値)をテスト画線で調査した。テスト画線として、製
版用フィルム原版上の画線幅を100μmとした従来の
彩紋模様の形態を有する図8のような印刷物(16)を
作製した。この印刷物(16)は、用紙に市販のコート
紙(SKコート)を用い、インキのレオロジー適性を、
一般的な適性である粘度99ポアズ、タック値4.4と
した市販のオフセットインキ(グレー)でオフセット印
刷を行った後、前記印刷物(16)の彩紋模様(17)
の画線(18)の画線幅を測定した結果、116μmと
計測されたので、画線全体の膨張値は16μmで、印刷
をした際の画線片側に生じる膨張値(または収縮値)
χ’は8μmであることがわかった。
In the present invention, as described above, the expansion value (or contraction value) of the image line at the time of printing is taken into consideration, and the expansion value (or contraction value) is tested in advance when designing the image line at the time of plate making. It was investigated with a streak. As a test image, a printed matter (16) as shown in FIG. 8 having a conventional color pattern pattern having an image width on the plate making film original plate of 100 μm was prepared. In this printed matter (16), commercially available coated paper (SK coat) is used as the paper, and the rheological suitability of the ink is
After performing offset printing with a commercially available offset ink (gray) having a viscosity of 99 poise and a tack value of 4.4, which is a general suitability, a color pattern (17) of the printed matter (16)
As a result of measuring the line width of the image line (18) of 116 μm, the expansion value of the entire image line is 16 μm, and the expansion value (or the contraction value) generated on one side of the image line when printing is performed.
It was found that χ'is 8 μm.

【0018】前記テスト画線により得られた画線片側に
生じる膨張値8μmの値を用いて、本発明の画線構成に
より、潜像を施さない部分の印刷画線幅が116μmの
彩紋模様印刷物図9を得るための刷版を作製した。まず
市販のCGSを用い、図10に示すような彩紋模様画線
を構成する基本をなすスプライン曲線からなる基本曲線
(8)を二次元座標上に設定し、潜像パターン(19)
をスプライン曲線からなる基本曲線(8)上に配置し
た。なお前記潜像パターンは、本発明の印刷物が不心得
者により複写機によって複製された場合に、目視によっ
て明瞭に識別できるものであれば、文字、図形の何れを
も問わない。潜像を施さない部分の画線と潜像を施した
部分の画線の作成は、前記図10におけるスプライン曲
線からなる基本曲線(8)と前記潜像パターンの境界部
(9)の部分拡大図である図11の、潜像パターン(1
9)の領域と前記基本曲線の交点(10)においておこ
なわれる。
By using the expansion value of 8 μm generated on one side of the image line obtained by the test image line, the print line width of the portion where the latent image is not applied is 116 μm for the striated pattern by the image line construction of the present invention. A printing plate was prepared for obtaining the printed matter FIG. First, a commercially available CGS is used to set a basic curve (8), which is a basic spline curve constituting a color pattern pattern drawing line as shown in FIG. 10, on a two-dimensional coordinate, and a latent image pattern (19) is set.
Were arranged on a basic curve (8) consisting of a spline curve. The latent image pattern may be in the form of characters or figures as long as it can be clearly identified by visual inspection when the printed matter of the present invention is reproduced by an inexperienced person by a copying machine. The drawing of the image line of the part where the latent image is not applied and the image line of the part where the latent image is applied are created by partially enlarging the basic curve (8) consisting of the spline curve in FIG. 10 and the boundary part (9) of the latent image pattern. The latent image pattern (1
This is done at the intersection (10) between the area 9) and the basic curve.

【0019】まず本実施例で作成しようとしている複写
防止用彩紋模様の印刷画線幅が116μmであるから、
基本曲線(8)に対置する印刷画線幅を116μmとし
たとき、画線設計上の画線幅は前述のテスト画線で把握
した印刷画線全体の膨張値16μmを差し引いた100
μmと設定した。次に、潜像を施した部分の画線設計、
即ち、図4における潜像を施した部分の画線幅a、及び
潜像を施さない部分の画線(12)と潜像を施した部分
の画線(13)の位置関係を規定づける、前記基本曲線
(8)から潜像曲線(14)までの間隔W’を設定する
必要があるが、それらは前述したように、a={A−
(χ’+χ’)(n−1)}/n及びW’={(n−
1)(S+χ’+χ’+a)}/nの式によって求めら
れる。
First, since the print image line width of the copy-prevention color pattern to be created in this embodiment is 116 μm,
Assuming that the print line width opposite to the basic curve (8) is 116 μm, the line width in the image line design is 100 obtained by subtracting the expansion value 16 μm of the entire print image line grasped by the test line described above.
It was set to μm. Next, the drawing line design of the part with the latent image,
That is, the image width a of the latent image-applied portion in FIG. 4 and the positional relationship between the image line 12 of the non-latent image portion and the image line 13 of the latent image portion are defined. It is necessary to set the distance W'from the basic curve (8) to the latent image curve (14), and as described above, they are a = {A-
(Χ '+ χ') (n-1)} / n and W '= {(n-
1) (S + χ '+ χ' + a)} / n.

【0020】しかし潜像を施した部分の画線の本数n
と、潜像を施した画線と潜像を施した画線の間隔Sは、
予め設定することが必要である。まず潜像を施した部分
の画線の本数nの設定は、潜像が肉眼で視認されず、且
つ、複写機で解像されないことが必要であるから、潜像
を施した部分の画線一本の幅は、一般的な複写機の出力
解像度を400dpiとすると1画素は64μmである
から、解像されにくい画線幅の目安として64μm以下
が適しており、本実施例の彩紋模様印刷物は前述のとお
り印刷後の画線幅は116μmの設定であるから、潜像
を施した部分の画線の本数nは116μm/64μmの
関係からn=2とした。次に前記潜像を施した部分の画
線と潜像を施した部分の画線の間隔Sは、潜像が肉眼で
視認されず、且つ複写機で解像されない範囲の30μm
〜60μmが可能であるが、本実施例では50μmとし
た。設定されたnとSを前記計算式にあてはめると、a
={100−(8+8)(2−1)}/2で、潜像を施
した部分の一本の画線幅は42μm、前記基本曲線
(8)から潜像曲線(14)までの間隔W’は、W’=
{(2−1)(50+8+8+42)}/2で、54μ
mが得られたので、CGSにおいて図12の潜像を施す
部分の領域(19)の潜像曲線(14)は、潜像の境界
線(9)上のスプライン曲線からなる前記基本曲線
(8)の交点(10)を基準に、前記基本曲線(8)に
対してW’が示すように両側へ54μm広げたところに
設定した。
However, the number of lines n in the portion where the latent image is formed is n
And the space S between the latent image and the latent image is
It is necessary to set in advance. First, in setting the number n of lines of the latent image, it is necessary that the latent image is not visible to the naked eye and is not resolved by the copying machine. Since the width of one line is 64 μm per pixel when the output resolution of a general copying machine is 400 dpi, 64 μm or less is suitable as a guideline for the line width that is difficult to be resolved. Since the printed line width of the printed matter is set to 116 μm as described above, the number n of image lines in the latent image formed portion is set to n = 2 from the relation of 116 μm / 64 μm. Next, the interval S between the image line of the latent image-formed portion and the image line of the latent image-formed portion is 30 μm in a range in which the latent image is not visually recognized by the naked eye and is not resolved by a copying machine.
Although it can be up to 60 μm, it is set to 50 μm in this embodiment. Applying the set n and S to the above formula, a
= {100− (8 + 8) (2-1)} / 2, and the image width of one of the latent imaged portions is 42 μm, and the distance W from the basic curve (8) to the latent image curve (14) is W. 'Is W' =
With {(2-1) (50 + 8 + 8 + 42)} / 2, 54 μ
Since m is obtained, the latent image curve (14) of the region (19) of the portion to be subjected to the latent image of FIG. 12 in CGS is the basic curve (8) which is a spline curve on the boundary line (9) of the latent image. Based on the intersection point (10) of (4), it was set at a position widened to both sides by 54 μm as indicated by W ′ with respect to the basic curve (8).

【0021】更に、前記計算式で得られた画線幅及び潜
像を施した部分の画線幅の数値によって図13のように
二次元データ上で、前記基本曲線(8)に対置する潜像
を施さない部分の画線(12’)の画線幅Aを100μ
m、潜像パターン(19)の領域内の前記潜像曲線(1
4)に対置する潜像を施した部分の画線(13’)の画
線幅aを42μmで構成した彩紋模様を、市販のレーザ
ープロッターを用いて製版用フィルム原版を得、市販の
ポジタイプPS版で刷版を作製した。次に得られた刷版
を用い、市販のコート紙(SKコート)上に、インキの
レオロジー適性を、粘度99ポアズ、タック値4.4と
した市販のオフセットインキ(グレー)で、印刷機器の
調整は一般の平版オフセット印刷に等しく、特別に調整
することなくオフセット印刷を行い図9の印刷物を得
た。
Further, according to the numerical values of the line width obtained by the above formula and the line width of the portion where the latent image is formed, as shown in FIG. The image width A of the image line (12 ') in the non-image area is 100μ
m, the latent image curve (1
4) A colored pattern having an image width a of an image line (13 ') opposite to 4) of 42 μm is obtained using a commercially available laser plotter to obtain a film master for plate making, and a commercially available positive type A printing plate was prepared with a PS plate. Next, using the obtained printing plate, a commercially available offset ink (gray) having a viscosity of 99 poise and a tack value of 4.4 on a commercially available coated paper (SK coat) was used as a printing device. The adjustment was the same as that of general lithographic offset printing, and offset printing was performed without special adjustment to obtain the printed matter of FIG.

【0022】図9の印刷物を目視で観察した場合、観察
者には潜像を施した部分の画線(20’)が二本線であ
るにもかかわらず、潜像を施さない部分の画線(2
1’)の延長、即ち、あたかも一本線であるかのように
認識される。従って、観察者は印刷画線の拡大視を試み
ない限り、潜像を施した部分(20)の存在をまったく
視認することができず、一見すると潜像を施した彩紋模
様(21)を有する印刷物(22)は、図8の従来の彩
紋模様(17)を有する印刷物(16)と同一の印刷物
に見える。
When the printed matter of FIG. 9 is visually observed, the image line of the portion where the latent image is not formed is double although the image line (20 ') of the portion where the latent image is formed is two lines to the observer. (2
1 ') is extended, that is, it is recognized as if it is a single line. Therefore, the observer cannot see the existence of the latent imaged portion (20) at all unless he / she attempts to magnify the printed image line, and at first glance, the latent imaged iris pattern (21) is seen. The printed matter (22) possessed looks the same as the printed matter (16) having the conventional color pattern (17) of FIG. 8.

【0023】図14は、本発明の彩紋模様を有する印刷
物図9を、カラー複写機(キャノン・カラーレーザーコ
ピア470)によって複製した複製物(23)を示した
ものである。図9に示す二本線の画線で潜像を施した部
分(20)に対置する図14の潜像を施した部分(2
5)は複写機で再生不能となり、図9の部分拡大図の潜
像を施さない部分(21’)の一本線の画線と濃淡差が
生じて、潜像が複製物[図14]の彩紋模様(24)か
ら潜像を施さない部分の画線(24’)のみが認識でき
る画線となることから顕像(25)の状態となり、複写
機を用いた複製物であることは一目瞭然であった。これ
によって真偽判別が可能となる。
FIG. 14 shows a duplicate (23) obtained by duplicating FIG. 9 of the printed matter having the color pattern of the present invention by a color copying machine (Canon Color Laser Copier 470). A latent image portion (2) shown in FIG. 14 opposite to the latent image portion (20) shown in FIG.
5) becomes unreproducible by the copying machine, and a grayscale difference occurs with the image of the single line of the portion (21 ') not subjected to the latent image in the partially enlarged view of FIG. 9, and the latent image of the duplicate [FIG. Since only the image line (24 ') of the portion where the latent image is not applied is recognizable from the striated pattern (24), the image is in the state of the visible image (25), which means that it is a duplicate using a copying machine. It was obvious. This makes it possible to discriminate between true and false.

【0024】[0024]

【発明の効果】本発明は前述のとおり、肉眼では潜像を
まったく識別できなく、且つ複写機により複写した場合
は潜像を施した部分は再生不能となり、潜像が顕像化さ
れるので複写機による偽造、変造防止効果に有効であ
る。また本発明の彩紋模様は単色印刷においても容易に
肉眼では潜像を識別できないことから、あえてカムフラ
ージ模様を重ね刷りする必要がなく、前記彩紋模様を単
色の地紋模様として用いることもできる。更に地紋、彩
紋模様にモアレ模様等の他種の偽造防止策を同一画線上
に併用した印刷物も可能であり、複写機による偽造、変
造を防止しなければならない銀行券、株券、債券等の有
価証券や、各種証明書及び重要書類等の複写機による偽
造、変造防止技術として有効である。
As described above, according to the present invention, the latent image cannot be discerned by the naked eye, and when the image is copied by a copying machine, the portion provided with the latent image cannot be reproduced and the latent image becomes visible. It is effective in preventing forgery and alteration by a copying machine. In addition, since the latent image of the chromatic pattern of the present invention cannot be easily identified with the naked eye even in monochromatic printing, it is not necessary to overprint the camouflage pattern, and the chromatic pattern can be used as a monochrome tint pattern. In addition, it is possible to use printed materials that use other types of forgery prevention measures such as moire patterns in the background pattern and color patterns on the same drawing line. Banknotes, stock certificates, bonds, etc. that must prevent forgery and alteration by a copying machine are also possible. It is effective as a technology for preventing forgery and alteration of securities, various certificates and important documents by copying machines.

【図面の簡単な説明】[Brief description of drawings]

【図1】 従来の複写防止用印刷物の模様及び前記模様
の一部拡大図
1 is a pattern of a conventional copy-preventing printed matter and a partially enlarged view of the pattern.

【図2】 従来の複写防止用印刷物の複写物の模様及び
前記模様の一部拡大図
FIG. 2 is a pattern of a conventional copy-preventing printed matter and a partially enlarged view of the pattern.

【図3】 本発明の複写防止模様及び前記模様の一部拡
大図
FIG. 3 is a copy-enhanced pattern of the present invention and a partially enlarged view of the pattern.

【図4】 潜像を施さない部分と潜像を施した部分の境
界部の拡大図
FIG. 4 is an enlarged view of a boundary between a portion without a latent image and a portion with a latent image.

【図5】 潜像を施さない部分と潜像を施した部分の画
線構成を示した図
FIG. 5 is a diagram showing a drawing line configuration of a portion without a latent image and a portion with a latent image.

【図6】 潜像を施さない部分と潜像を施した部分の境
界部分の説明図
FIG. 6 is an explanatory diagram of a boundary portion between a portion without a latent image and a portion with a latent image.

【図7】 潜像を施さない部分と潜像を施した部分の境
界部分の説明図
FIG. 7 is an explanatory diagram of a boundary portion between a portion without a latent image and a portion with a latent image.

【図8】 従来の彩紋模様を有する印刷物及び前記模様
の拡大図
FIG. 8 is an enlarged view of a conventional printed matter having a color pattern and the pattern.

【図9】 本発明の彩紋模様を有する印刷物及び前記模
様の拡大図
FIG. 9 is an enlarged view of a printed matter having a colored pattern of the present invention and the pattern.

【図10】 彩紋模様画線を構成する基本をなす基本曲
線及び潜像パターンを設定した図
FIG. 10 is a diagram in which a basic curve and a latent image pattern that form the basis of a striated pattern drawing line are set.

【図11】 彩紋模様画線を構成する基本をなす基本曲
線及び潜像パターンを設定した拡大図
FIG. 11 is an enlarged view in which a basic curve and a latent image pattern that form the basis of a striated pattern drawing line are set.

【図12】 本発明の彩紋模様に潜像曲線を設定した図FIG. 12 is a diagram in which a latent image curve is set in the color pattern of the present invention.

【図13】 本発明の彩紋模様の二次元データ上の画線
構成図
FIG. 13 is a drawing line configuration diagram on the two-dimensional data of the color pattern of the present invention.

【図14】 本発明の彩紋模様を施した印刷物の複製物
及び前記模様の一部拡大図
FIG. 14 is a partially enlarged view of a duplicate of a printed matter on which the colored pattern of the present invention is applied and the pattern.

【符号の説明】[Explanation of symbols]

1 従来の複写防止用印刷物 2 印刷面全体の模様 3 印刷物上の再生されない密構成のスクリーンパタ
ーン 3’ 複写物上の再生されない密構成のスクリーンパタ
ーン 4 印刷物上の再生される粗構成のスクリーンパター
ン 4’ 複写物上の再生される粗構成のスクリーンパター
ン 5 潜像の境界線との干渉部 6 潜像を施さない部分の画線 7 潜像を施した部分の画線 8 基本曲線 9 潜像の輪郭線 10 基本曲線と潜像の輪郭線の交点 11 基本曲線に接する直線 12 潜像を施さない部分の画線 12’潜像を施さない部分の画線 13 潜像を施した部分の画線 13’潜像を施した部分の画線 14 潜像を施した部分の各々の画線幅の中心をなす潜
像曲線 15 潜像を施さない部分の画線と潜像を施した部分の
画線の境界線 16 従来の彩紋模様を有する印刷物 17 従来の彩紋模様 18 従来の印刷物の彩紋模様の画線 19 潜像パターン 20 潜像を施した部分 20’潜像を施した部分の画線 21 潜像を施した彩紋模様 21’潜像を施さない部分の画線 22 潜像を施した彩紋模様を有する印刷物 23 複製物 24 複製物の彩紋模様 25 顕像 A 潜像を施さない部分の画線幅 B 潜像を施した部分の画線領域 C 潜像を施さない部分の画線領域 a 潜像を施した部分の二本線以上の画線幅の各々一
本の画線幅 n 潜像を施した部分の画線の分岐する本数 χ’ 画線片側に生じる膨張値(または収縮値) S 潜像を施した部分の画線の各々の画線の内側エッ
ジの間隔 W 隣接する各々の潜像曲線の間隔 W’ 基本曲線から潜像曲線までの間隔
1 Conventional Copy Protection Printed Material 2 Pattern on Entire Printed Surface 3 Non-Reproduced Dense Structured Screen Pattern on Printed Material 3 ′ Non-Regenerated Densely Configured Screen Pattern 4 Regenerated Coarsely Configured Screen Pattern on Printed Material 4 'Coarsely constructed screen pattern reproduced on copy 5 Interference with boundary line of latent image 6 Image line of non-latent image part 7 Image line of latent image part 8 Basic curve 9 Latent image Contour line 10 Intersection of basic curve and contour line of latent image 11 Straight line tangent to basic curve 12 Image line of non-latent image part 12 'Image line of non-latent image part 13 Image line of latent image part 13 'The image line of the latent imaged part 14 The latent image curve which forms the center of the image width of each of the latent imaged parts 15 The image line of the non-latent imaged part and the image of the latent imaged part Line border 16 Has a traditional color pattern Printed matter 17 Conventional colored pattern 18 Colored line of conventional printed pattern 19 Latent image pattern 20 Latent image-applied part 20 'latent image-applied part image line 21 Latent image-applied color print pattern 21 'The image line of the part where the latent image is not applied 22 The printed matter having the color pattern with the latent image 23 The copy 24 The color pattern of the copy 25 The visible image A The line width of the part where the latent image is not applied B The latent image Image area of the applied area C Image area of the area where the latent image is not applied a One image width of two or more line widths of the area applied the latent image n Image of the area applied the latent image Number of lines branched χ'Expansion value (or contraction value) generated on one side of the image line S Distance between inner edges of each image line of the portion on which the latent image is applied W Distance between adjacent latent image curves W '' Distance from basic curve to latent image curve

Claims (12)

【特許請求の範囲】[Claims] 【請求項1】 曲画線の集合模様を、潜像を施さない部
分を一本線、潜像を施した部分を二本線以上の画線で表
現し、潜像を施した部分の二本線以上の画線は、二本線
以上の画線の合計の画線幅が、潜像を施さない部分の一
本線の画線の画線幅と等しく、且つ、潜像を施さない部
分の一本線から分岐することを特徴とする複写防止模様
の作成方法。
1. A set pattern of curved lines is represented by a single line for a portion without a latent image and two or more lines for a portion with a latent image, and two or more lines for a portion with a latent image. The line width of the line is equal to the line width of the line of the single line where the latent image is not applied, and the line width of the line of two or more lines is equal to the line width of the line where the latent image is not applied. A method of creating a copy protection pattern, characterized by branching.
【請求項2】 曲画線の集合模様を、潜像を施さない部
分を一本線、潜像を施した部分を二本線以上の画線で表
現し、潜像を施した部分の二本線以上の画線は、二本線
以上の画線の合計の画線幅が、潜像を施さない部分の一
本線の画線の画線幅と等しく、且つ、潜像を施さない部
分の一本線から印刷時の変化を加味した画線として分岐
し印刷したことを特徴とする複写防止模様を有する印刷
物。
2. A set pattern of curved lines is represented by a single line for a portion without a latent image and two or more lines for a portion with a latent image, and two or more lines for a portion with a latent image. The line width of the line is equal to the line width of the line of the single line where the latent image is not applied, and the line width of the line of two or more lines is equal to the line width of the line where the latent image is not applied. A printed matter having a copy-preventing pattern, which is branched and printed as an image line in consideration of changes in printing.
【請求項3】 潜像を施さない部分と潜像を施した部分
の画線上の境界線が、曲画線の集合模様を構成する基本
曲線と潜像の輪郭線の交点において基本曲線に接する直
線に対し、略直角に交わる直線となることを特徴とする
前記請求項1記載の複写防止模様の作成方法。
3. A boundary line on the image line between the non-latent imaged portion and the latent imaged portion is in contact with the basic curve at the intersection of the basic curve forming the aggregate pattern of the curved image lines and the latent image contour line. The method for producing a copy protection pattern according to claim 1, wherein the straight line intersects the straight line at a right angle.
【請求項4】 潜像を施さない部分と潜像を施した部分
の画線上の境界線が、曲画線の集合模様を構成する基本
曲線と潜像の輪郭線の交点において基本曲線に接する直
線に対し、略直角に交わる直線となり、更に印刷時の変
化を加味した画線で印刷したことを特徴とする前記請求
項1記載の複写防止模様を有する印刷物。
4. A boundary line on an image line between a portion without a latent image and a portion with a latent image is in contact with the basic curve at an intersection of a basic curve forming a collective pattern of curved lines and a contour line of the latent image. The printed matter having a copy-preventing pattern according to claim 1, wherein the printed matter is a straight line that intersects with a straight line at a substantially right angle, and is printed with an image line that takes into consideration changes during printing.
【請求項5】 前記曲画線の集合模様が地紋、彩紋模様
であることを特徴とする前記請求項1記載の複写防止模
様の作成方法。
5. The method for creating a copy protection pattern according to claim 1, wherein the set pattern of the curved lines is a tint block pattern or a color pattern pattern.
【請求項6】 前記曲画線の集合模様が地紋、彩紋模様
であることを特徴とする前記請求項2記載の複写防止模
様を有する印刷物。
6. The printed matter having a copy-preventing pattern according to claim 2, wherein the collective pattern of the curved lines is a tint block pattern or a color pattern pattern.
【請求項7】 前記曲画線の集合模様が地紋、彩紋模様
であることを特徴とする前記請求項3記載の複写防止模
様の作成方法。
7. The method of creating a copy protection pattern according to claim 3, wherein the set pattern of the curved lines is a tint block pattern or a color pattern pattern.
【請求項8】 前記曲画線の集合模様が地紋、彩紋模様
であることを特徴とする前記請求項4記載の複写防止模
様を有する印刷物。
8. The printed matter having a copy protection pattern according to claim 4, wherein the collective pattern of the curved lines is a tint block pattern or a color pattern pattern.
【請求項9】 前記曲画線の集合模様がレリーフ模様で
あることを特徴とする前記請求項1記載の複写防止模様
の作成方法。
9. The method for producing a copy protection pattern according to claim 1, wherein the collective pattern of the curved lines is a relief pattern.
【請求項10】 前記曲画線の集合模様がレリーフ模様
であることを特徴とする前記請求項2記載の複写防止模
様を有する印刷物。
10. The printed matter having a copy protection pattern according to claim 2, wherein the collective pattern of the curved lines is a relief pattern.
【請求項11】 前記曲画線の集合模様がレリーフ模様
であることを特徴とする前記請求項3記載の複写防止模
様の作成方法。
11. The method of creating a copy protection pattern according to claim 3, wherein the set pattern of the curved lines is a relief pattern.
【請求項12】 前記曲画線の集合模様がレリーフ模様
であることを特徴とする前記請求項4記載の複写防止模
様を有する印刷物。
12. The printed matter having a copy protection pattern according to claim 4, wherein the collective pattern of the curved lines is a relief pattern.
JP20614094A 1994-08-09 1994-08-09 Method for preparing copy-preventive pattern and printed matter thereof Expired - Lifetime JP3368327B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP20614094A JP3368327B2 (en) 1994-08-09 1994-08-09 Method for preparing copy-preventive pattern and printed matter thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP20614094A JP3368327B2 (en) 1994-08-09 1994-08-09 Method for preparing copy-preventive pattern and printed matter thereof

Publications (2)

Publication Number Publication Date
JPH08197828A true JPH08197828A (en) 1996-08-06
JP3368327B2 JP3368327B2 (en) 2003-01-20

Family

ID=16518457

Family Applications (1)

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JP2001353953A (en) * 2000-06-15 2001-12-25 Dainippon Printing Co Ltd Printed matter prevented from being duplicated
JP2001353954A (en) * 2000-06-15 2001-12-25 Dainippon Printing Co Ltd Printed matter prevented from being duplicated
EP1864825A1 (en) * 2005-03-30 2007-12-12 National Printing Bureau, Incorporated Administrative Agency Printed matter, method and device for detecting such printed matter, and authentication method and device
WO2012159602A1 (en) * 2011-05-20 2012-11-29 Bundesdruckerei Gmbh Valuable document and/or security document having coded information

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Publication number Priority date Publication date Assignee Title
JP2001353953A (en) * 2000-06-15 2001-12-25 Dainippon Printing Co Ltd Printed matter prevented from being duplicated
JP2001353954A (en) * 2000-06-15 2001-12-25 Dainippon Printing Co Ltd Printed matter prevented from being duplicated
EP1864825A1 (en) * 2005-03-30 2007-12-12 National Printing Bureau, Incorporated Administrative Agency Printed matter, method and device for detecting such printed matter, and authentication method and device
US8055064B2 (en) 2005-03-30 2011-11-08 National Printing Bureau, Incorporated Administrative Agency Printed product, printed product detection method and detection apparatus, and authentication method and authentication apparatus
EP1864825A4 (en) * 2005-03-30 2012-01-18 Nat Printing Bureau Incorporated Administrative Agency Printed matter, method and device for detecting such printed matter, and authentication method and device
WO2012159602A1 (en) * 2011-05-20 2012-11-29 Bundesdruckerei Gmbh Valuable document and/or security document having coded information
CN103547459A (en) * 2011-05-20 2014-01-29 联邦印刷厂有限公司 Valuable document and/or security document having coded information
CN103547459B (en) * 2011-05-20 2016-01-20 联邦印刷厂有限公司 There is value document and/or the secure file of the information of coding

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