JP3022084B2 - Anti-counterfeit paper and anti-counterfeit printed matter - Google Patents

Anti-counterfeit paper and anti-counterfeit printed matter

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Publication number
JP3022084B2
JP3022084B2 JP21816293A JP21816293A JP3022084B2 JP 3022084 B2 JP3022084 B2 JP 3022084B2 JP 21816293 A JP21816293 A JP 21816293A JP 21816293 A JP21816293 A JP 21816293A JP 3022084 B2 JP3022084 B2 JP 3022084B2
Authority
JP
Japan
Prior art keywords
paper
pearl pigment
thread
binder
counterfeit
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.)
Expired - Lifetime
Application number
JP21816293A
Other languages
Japanese (ja)
Other versions
JPH0756377A (en
Inventor
徹 村上
好明 石井
健二 野田
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.)
Tokushu Paper Manufacturing Co Ltd
Original Assignee
Tokushu Paper Manufacturing Co Ltd
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 Tokushu Paper Manufacturing Co Ltd filed Critical Tokushu Paper Manufacturing Co Ltd
Priority to JP21816293A priority Critical patent/JP3022084B2/en
Publication of JPH0756377A publication Critical patent/JPH0756377A/en
Application granted granted Critical
Publication of JP3022084B2 publication Critical patent/JP3022084B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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  • Cleaning In Electrography (AREA)
  • Paper (AREA)

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、偽造防止用紙及び偽造
防止印刷物に関する。より詳しくは、かつカラー複写機
によるコピーで偽造を試みたものでも、真贋が容易に判
別できる偽造防止用紙及び偽造防止印刷物に関する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to anti-counterfeit paper and anti-counterfeit printing. More specifically, the present invention relates to anti-counterfeit paper and anti-counterfeit printed matter whose authenticity can be easily discriminated even when a forgery is attempted by copying with a color copying machine.

【0002】[0002]

【従来の技術】最近の複写機の精度向上は著しく、特に
電子写真方式のカラー複写機の普及は各種の有価証券類
等の偽造を容易にしており、社会問題化されている。こ
れを防止するため種々の偽造防止手段が考えられている
が、その一つに、現在の複写機では光輝性を有するも
の、例えば金属色や干渉色を再現することが出来ないこ
とを利用したものがある。
2. Description of the Related Art In recent years, the accuracy of copying machines has been remarkably improved, and in particular, the spread of electrophotographic color copying machines has facilitated forgery of various securities and has become a social problem. To prevent this, various anti-counterfeiting means have been considered, but one of them is to utilize the fact that current copiers cannot reproduce brilliant ones, for example, metallic colors or interference colors. There is something.

【0003】例えば実開昭58−168754号に提案
されているように、基紙上面に、金属色調顕著なアルミ
箔などの光輝版を設け、且つ該光輝版表面に文字図柄を
施してなる複写機によるコピー不能用紙の提案がある。
これをコピーすると、用紙面に施された文字図柄は複写
機の光線照射があると箔表面が黒ずんでコピーされるの
で読みとり不可能となる。この用紙は複写そのものが不
可能(複写物の読みとりが出来ない)という長所はある
が、光輝版の用紙に占める面積が大きいために金属色が
強調されすぎて違和感があることが欠点である。また用
紙の製造工程が複雑となり、必然的にコスト高になるこ
と、古紙からの製紙用繊維の回収が困難等の別の問題点
もある。
For example, as proposed in Japanese Utility Model Application Laid-Open No. 58-168754, a luminous plate such as an aluminum foil having a remarkable metallic color is provided on the upper surface of a base paper, and a character pattern is formed on the luminous plate surface. There is a proposal for paper that cannot be copied by the machine.
When this is copied, the character pattern applied to the paper surface becomes unreadable because the foil surface is darkened and copied when light is irradiated from the copying machine. This sheet has the advantage that copying itself cannot be performed (the copy cannot be read), but has the disadvantage that the metallic color is emphasized too much because the area of the glittering plate occupying the sheet is so uncomfortable. In addition, there are other problems, such as a complicated paper manufacturing process, which inevitably increases the cost, and difficulty in recovering papermaking fibers from waste paper.

【0004】本発明者らはこれらの問題点を解決するこ
とを目的に検討を進めた。本発明者らは発想を転換し
て、カラー複写機で複写しても元の原稿と異なった色相
に複写されるか、あるいは全く複写されなければ本物か
否かの判定が出来ることに着目した。
[0004] The present inventors have conducted studies for the purpose of solving these problems. The inventors of the present invention have changed their minds and have noticed that even if they are copied with a color copying machine, they can be copied in a different hue from the original document, or if they are not copied at all, it can be determined whether they are genuine or not. .

【0005】本発明者らは、まず光輝性に優れた銀色の
アルミニウム蒸着ポリエステルフィルムを細片化して、
それを紙に抄き込むことを検討した。こうして製造した
用紙はカラー複写機では金属光輝感が再現できないの
で、細片の混在した部分は単に黒色に複写され、偽造防
止能があることが判った。しかしながら、このようにし
て製造した用紙では細片が用紙に強固に密着せず、印刷
時に細片の脱落が起こり大きな問題を起こすことが判っ
た。
The present inventors first sliced a silver-aluminized polyester film excellent in brilliancy,
We considered making it into paper. Since the paper produced in this manner cannot reproduce the metallic glitter in a color copying machine, the portion where the strips are mixed is simply copied in black, which proves to have a forgery preventing ability. However, it was found that in the paper manufactured in this manner, the strip did not adhere firmly to the paper, and the strip was dropped during printing, causing a serious problem.

【0006】[0006]

【発明が解決しようとする課題】本発明者らは上記問題
を解決した偽造防止用紙を、特願平5−114009号
として提案した。この発明の要旨とするところは、基紙
の表面に光輝性を有する細片を遍在させた偽造防止用紙
において、該細片が抄紙工程において基紙と接着可能な
性能を有すことを特徴とする偽造防止用紙である。
The present inventors have proposed a forgery prevention paper which has solved the above problem as Japanese Patent Application No. 5-11409. The gist of the present invention is that in a forgery prevention paper in which glittering strips are ubiquitously present on the surface of the base paper, the strips have a performance capable of adhering to the base paper in the paper making process. Anti-counterfeit paper.

【0007】また本発明者らは特願平5−124880
号で「偽造防止用紙及び偽造防止印刷物」の提案を行っ
た。この発明の要旨とするところは、基紙表面に真珠顔
料と接着剤を主体とした部分的な被覆層を形成した偽造
防止用紙を得ること、及びこの要旨を使用して所定の印
刷を施して偽造防止印刷物を得ることにある。
The present inventors have also filed Japanese Patent Application No. 5-124880.
The issue of "forgery prevention paper and forgery prevention printed matter" was proposed. The gist of the present invention is to obtain a forgery prevention paper having a partial coating layer mainly composed of a pearl pigment and an adhesive formed on the surface of a base paper, and performing a predetermined printing using this gist. An object of the present invention is to obtain a forgery prevention printed matter.

【0008】本発明者らはなお検討を進め、上記の提案
と異なった構成の偽造防止用紙及び偽造防止印刷物を完
成させた。
The present inventors have further studied and completed a forgery prevention paper and a forgery prevention printed matter having a configuration different from the above proposal.

【0009】[0009]

【課題を解決するための手段】本発明を図1に基づき説
明する。図1は本発明の偽造防止用紙の一例の斜視図と
断面図である。断面図は斜視図中のA−A線の断面を一
部拡大して示してある。本発明は、真珠顔料とバインダ
ーを主体とする塗工液を塗工した真珠顔料塗工紙を細巾
にスリットしてなるスレッド1を基紙2の少なくとも一
方の面の表面に抄き込んだことを特徴とする偽造防止用
紙である。
The present invention will be described with reference to FIG. FIG. 1 is a perspective view and a sectional view of an example of the forgery prevention sheet of the present invention. The cross-sectional view is a partially enlarged cross-section taken along the line AA in the perspective view. In the present invention, a thread 1 formed by slitting a pearl pigment coated paper coated with a coating liquid mainly composed of a pearl pigment and a binder into at least one surface of a base paper 2 is formed. The forgery prevention paper is characterized in that:

【0010】また図2は本発明の偽造防止印刷物の一例
の上面図であり、真珠顔料とバインダーを主体とする塗
工液を塗工した真珠顔料塗工紙を細巾にスリットしてな
るスレッド1を基紙2の一方の面の表面に抄き込んだ偽
造防止用紙を使用し、スレッドの少なくとも一部分が印
刷が施されないような図柄で印刷21を施したことを特
徴とする偽造防止印刷物である。
FIG. 2 is a top view of an example of a forgery-preventing printed material according to the present invention. The thread is formed by slitting a pearl pigment coated paper coated with a coating liquid mainly composed of a pearl pigment and a binder. 1 is a forgery-prevention printed matter, characterized in that forgery-prevention paper is used as the base paper 2 on one side of the base paper 2, and at least a part of the thread is printed 21 with a pattern that is not printed. is there.

【0011】本発明に使用する真珠顔料は、天然パール
エッセンスや、雲母粉末、酸化チタン被覆雲母粉末、塩
基性炭酸塩、魚鱗箔等公知の真珠顔料がいずれも使用で
きる。これらの製法等は特公昭35−5367号、特公
昭39−28885号、特公昭48−23179号、特
公昭47−29569号、特公昭53−47375号、
特公昭56−39669号、特公昭58−7674号、
特公平1−22873号、特公平4−48812号、特
開昭58−174449号、特開昭58−180561
号、特開昭58−219226号、特開昭59−782
65号、特開昭60−92359号、特開昭62−34
962号、特開昭62−285956号、特開平4−2
27666号、等に記載されている技術がいずれも使用
できる。真珠顔料には虹彩色を発するものがあり、見る
角度で色相が変化することが特徴である。本発明で用い
る真珠顔料はこの虹彩色を発する真珠顔料を用いること
が特に好ましい。異なる虹彩色を発するスレッドを基紙
に抄き込むことで偽造防止能が高まり、また意匠的な効
果が高まるからである。
As the pearl pigment used in the present invention, any of known pearl pigments such as natural pearl essence, mica powder, mica powder coated with titanium oxide, basic carbonate and fish scale foil can be used. These production methods are described in JP-B-35-5367, JP-B-39-28885, JP-B-48-23179, JP-B-47-29569, JP-B-53-47375,
JP-B-56-39669, JP-B-58-7767,
Japanese Patent Publication No. 1-28733, Japanese Patent Publication No. 4-48812, JP-A-58-174449, JP-A-58-180561
JP-A-58-219226, JP-A-59-782
No. 65, JP-A-60-92359, JP-A-62-34
962, JP-A-62-285596, JP-A-4-2
No. 27666, etc. can be used. Some pearl pigments emit an iris color and are characterized by a change in hue depending on the viewing angle. As the pearl pigment used in the present invention, it is particularly preferable to use a pearl pigment that emits this iris color. This is because the forgery-preventing ability is improved and the design effect is enhanced by forming threads that emit different iris colors into the base paper.

【0012】バインダーとしては、スチレン・ブタジエ
ン共重合ラテックス,メチルメタクリレート・ブタジエ
ン共重合ラテックス等の合成ゴムラテックスやポリアク
リル酸エステルエマルジョン,ポリ酢酸ビニルエマルジ
ョン等の合成樹脂エマルジョン、澱粉、カゼイン、ポリ
ビニルアルコール等の天然糊剤若しくは合成糊剤等が使
用できる。
As the binder, synthetic rubber latex such as styrene / butadiene copolymer latex, methyl methacrylate / butadiene copolymer latex, synthetic resin emulsion such as polyacrylate emulsion, polyvinyl acetate emulsion, starch, casein, polyvinyl alcohol, etc. Natural or synthetic sizing agents can be used.

【0013】本発明ではバインダーとして冷水には不溶
で、かつ50℃以上の熱水に可溶であるバインダーを使
用することが特に好ましい。このような性質をもつバイ
ンダーの好適な例としてはポリビニルアルコールが挙げ
られる。ポリビニルアルコールは重合度と鹸化度を変化
させて合成することが出来、水に対する溶解温度を変化
できる。このようなバインダーを使用して作製したスレ
ッドは後に詳しく述べるように、抄紙工程のウエットパ
ートではスレッドからバインダーが溶出せず、ドライパ
ートの熱により溶出し、用紙と密着する性質を持つよう
になる。
In the present invention, it is particularly preferable to use a binder which is insoluble in cold water and soluble in hot water at 50 ° C. or higher. Preferable examples of the binder having such properties include polyvinyl alcohol. Polyvinyl alcohol can be synthesized by changing the degree of polymerization and the degree of saponification, and can change the dissolution temperature in water. As will be described in detail later, a thread manufactured using such a binder does not elute the binder from the thread in the wet part of the papermaking process, but elutes due to the heat of the dry part, and has a property to adhere to the paper. .

【0014】本発明は真珠顔料100重量部(乾燥重量
部、以下同じ)に対して、バインダーを通常80〜30
0重量部混合した塗工液を調製する。この際、消泡剤、
防腐剤、防黴剤、粘度調整剤等の副資材を本発明を阻害
しない程度に適宜混合することもできる。このように調
製した塗工液を通常坪量20〜100g/m2(乾燥重
量、以下同じ)、好ましくは30〜50g/m2の原紙
に塗工量2〜10g/m2、好ましくは3〜5g/m2塗
工する。原紙は真珠顔料の光輝感を出すためにはなるべ
く表面平滑性に優れるものが好ましい。耐水強度の優れ
た白色顔料塗工紙が好ましい例であるが、本発明者らが
検討した結果では、上質紙でも本発明の目的は十分達せ
られることを確認した。原紙は塗工液の浸透を防止する
ためにある程度サイズ性があることが好ましく、また湿
潤耐水強度もあることが好ましい。
In the present invention, a binder is usually used in an amount of 80 to 30 parts by weight based on 100 parts by weight of pearl pigment (dry part by weight, the same applies hereinafter).
A coating solution mixed with 0 parts by weight is prepared. At this time, defoamer,
Supplementary materials such as preservatives, fungicides, and viscosity modifiers may be appropriately mixed to such an extent that the present invention is not impaired. The coating solution thus prepared is applied to a base paper having a basis weight of 20 to 100 g / m 2 (dry weight, the same applies hereinafter), preferably 30 to 50 g / m 2, preferably 2 to 10 g / m 2, preferably 3 to 5 g / m 2. Apply m2. It is preferable that the base paper has excellent surface smoothness as much as possible in order to bring out the glitter of the pearl pigment. A white pigment coated paper having excellent water resistance is a preferred example, but as a result of studies by the present inventors, it has been confirmed that the object of the present invention can be sufficiently achieved even with high quality paper. The base paper preferably has a certain degree of size in order to prevent the penetration of the coating liquid, and preferably has a wet waterproof strength.

【0015】真珠顔料塗工層は公知の塗工機、例えばエ
アーナイフコーター,ロールコーター等の塗工機やグラ
ビア印刷機を使用して設ける。塗工は両面に施すことが
好ましい。
The pearl pigment coating layer is provided using a known coating machine, for example, a coating machine such as an air knife coater or a roll coater, or a gravure printing machine. The coating is preferably performed on both sides.

【0016】バインダーに熱水可溶性のないバインダー
を使用した場合には、基紙への接着を向上させる目的
で、真珠顔料塗工層の上にさらにポリビニルアルコール
等冷水には不溶で、かつ熱水溶解性のバインダーを塗工
することもできる。
When a binder which is not soluble in hot water is used as the binder, it is insoluble in cold water such as polyvinyl alcohol and is further insoluble in hot water such as polyvinyl alcohol for the purpose of improving adhesion to the base paper. A soluble binder can be applied.

【0017】本発明では真珠顔料を塗工する原紙には紫
外線で蛍光色を発する蛍光発色剤を併用することもでき
る。また真珠顔料塗工液に紫外線で蛍光色を発する蛍光
発色剤を併用することもできる。これらの場合には基紙
は蛍光色を発する蛍光発色剤を併用しないことが好まし
い。このようにすることで、スレッドは紫外線を照射す
ると蛍光色を発するようになるが、普通の光源下で見た
場合は、蛍光発色剤を併用しないときと外観はほとんど
変わらない。こうすることで用紙の偽造防止性能をより
高めることができる。用紙に紫外線を照射することでス
レッドは蛍光色を発し真贋を容易に判定できる。
In the present invention, the base paper on which the pearl pigment is coated may be used together with a fluorescent coloring agent which emits a fluorescent color by ultraviolet rays. Further, a fluorescing agent which emits a fluorescent color by ultraviolet rays can be used in combination with the pearl pigment coating liquid. In these cases, it is preferable that the base paper does not use a fluorescent coloring agent that emits a fluorescent color. By doing so, the thread emits a fluorescent color when irradiated with ultraviolet rays, but when viewed under a normal light source, the appearance is almost the same as when the fluorescent colorant is not used. By doing so, the forgery prevention performance of the paper can be further improved. By irradiating the paper with ultraviolet light, the thread emits a fluorescent color, and the authenticity can be easily determined.

【0018】蛍光発色剤としては、フルオレッセイン,
クマリン系,オキサゾール系,ピラゾリン系,チアジア
ゾール系,スピロピラン系,ピレンスルホン酸系,ベン
ゾイミダゾール系,ジアミノスチルベン系等の蛍光染料
や硫化亜鉛/銅活性顔料等の硫化物系や酸化物系の無機
蛍光剤等をいずれも利用できる。
Fluorescein, fluorescein,
Coumarin-based, oxazole-based, pyrazoline-based, thiadiazole-based, spiropyran-based, pyrenesulfonic acid-based, benzimidazole-based, diaminostilbene-based fluorescent dyes, and sulfide-based or oxide-based inorganic fluorescent materials such as zinc sulfide / copper active pigments Any agent can be used.

【0019】このようにして製造した真珠顔料塗工紙を
マイクロスリッターを使用して、通常は巾0.5〜5m
m、好ましくは2mm前後の巾でスリットしスレッドを
作製し、ボビンに巻き取る。
The pearl pigment coated paper produced in this manner is usually 0.5 to 5 m wide using a microslitter.
m, preferably about 2 mm in width to form a thread and wind it around a bobbin.

【0020】本発明の基紙は、針葉樹晒クラフトパルプ
(NBKP),広葉樹晒クラフトパルプ(LBKP),
針葉樹晒サルファイトパルプ(NBSP),サーモメカ
ニカルパルプ(TMP)等の製紙用パルプを主体としこ
れに乾燥紙力増強剤、湿潤紙力増強剤、サイズ剤、定着
剤、歩留り向上剤、濾水性向上剤、消泡剤、染料、着色
顔料、蛍光剤などを適宜併用し、通常フリーネス550
〜250mlC.S.F.で長網抄紙機や円網抄紙機等
の公知の抄紙機を使用して抄紙する。本発明ではさら
に、抄紙途上で紙面に澱粉、ポリビニルアルコール、各
種表面サイズ剤等をサイズプレス装置等で塗工すること
も可能である。この方法は真珠顔料塗工層を構成するバ
インダーが熱水可溶性でない場合に、細片と基紙との接
着性を向上するのに効果がある。さらに必要に応じ、マ
シンカレンダー処理やスーパーカレンダー処理を施し、
表面平滑性を向上させることも適宜行われる。
The base paper of the present invention comprises bleached softwood kraft pulp (NBKP), hardwood bleached kraft pulp (LBKP),
Mainly papermaking pulp such as softwood bleached sulphite pulp (NBSP) and thermomechanical pulp (TMP), with dry paper strength agent, wet paper strength agent, sizing agent, fixing agent, retention improver, and improved drainage Agents, defoamers, dyes, coloring pigments, fluorescent agents, etc., as appropriate, and usually has a freeness of 550.
~ 250 ml C.I. S. F. Using a well-known paper machine such as a fourdrinier paper machine or a round paper machine. In the present invention, it is also possible to apply starch, polyvinyl alcohol, various surface sizing agents and the like to the paper surface during the paper making process using a size press device or the like. This method is effective in improving the adhesion between the strip and the base paper when the binder constituting the pearl pigment coating layer is not soluble in hot water. Furthermore, machine calendar processing and super calendar processing are performed as necessary,
Improving the surface smoothness is also performed appropriately.

【0021】金属蒸着フィルムをスレッド化して紙層の
間に抄き込んだものは「糸入り紙」と称して偽造防止用
紙として使用されている。外国では紙幣にこの技術を応
用して偽造防止性能を高めていることは良く知られてい
る。本発明ではスレッドは基紙を抄造する時に、従来の
糸入り紙とは異なり、基紙の少なくとも一方の面の表面
に抄き込むことが必要であり、例えば次のような方法で
抄き込む。なお本発明で「抄き込む」とは、基紙の表面
にスレッドが露出するか、若しくはごく一部に紙料が被
っている状態を言う。本発明ではスレッドの真珠光輝色
が目で視認出きる状態で抄込まれていることが必要であ
る。 1)長網抄紙機のスライス直後にスレッドをボビンから
繰り出し、紙匹上に乗せ表面に抄き込む。 2)長網抄紙機や円網抄紙機で紙匹を形成後、プレスロ
ールにスレッドをボビンより繰り出し、紙匹表面にスレ
ッドを抄き込む。 3)円網抄紙機のバットの紙層形成後のシリンダー上に
スレッドをボビンから繰り入れて抄き込む。
A thread formed from a metal-deposited film formed into a thread between paper layers is called "threaded paper" and used as anti-counterfeit paper. It is well known in foreign countries that this technology is applied to banknotes to enhance their anti-counterfeiting performance. In the present invention, unlike the conventional thread-filled paper, the thread needs to be formed on at least one surface of the base paper when forming the base paper. For example, the thread is formed by the following method. In the present invention, "making in" refers to a state in which a thread is exposed on the surface of the base paper or a part of the base material is covered with the stock. In the present invention, it is necessary that the pearl brilliant color of the thread is ground in such a state that it can be visually recognized. 1) Immediately after slicing the fourdrinier, the thread is unreeled from the bobbin, placed on a paper web, and laid on the surface. 2) After forming a web with a fourdrinier or a round net, a thread is unwound from a bobbin onto a press roll, and the thread is formed on the surface of the web. 3) The thread is fed from the bobbin onto the cylinder after the paper layer of the bat of the round paper machine is formed, and is made into paper.

【0022】スレッドは基紙の片面に抄き込まれていて
も、両面に抄き込まれていてもよい。このようにして形
成した紙匹は、シリンダードライヤーやヤンキードライ
ヤー等の抄紙機の乾燥ゾーンで熱を与えられて乾燥され
る。乾燥初期には紙匹には多量の水分が含まれているの
でスレッドにも熱水が接触し、熱水可溶性バインダーを
使用したスレッドは、バインダーが膨潤またはその一部
が溶解し基紙と強固に接着する。
The thread may be provided on one side of the base paper or on both sides. The paper web thus formed is heated and dried in a drying zone of a paper machine such as a cylinder drier or a Yankee drier. In the initial stage of drying, the paper web contains a large amount of water, so hot water also comes into contact with the thread, and the thread using a hot water-soluble binder swells or partially dissolves the binder and firmly adheres to the base paper. Glue to

【0023】本発明の偽造防止用紙は他の偽造防止手段
と併用することができる。例えば、透き入れ、染色繊維
との混抄、スレッドの抄込み等である。これにより偽造
防止効果をより高めることができる。
The forgery prevention paper of the present invention can be used in combination with other forgery prevention means. For example, clarification, blending with dyed fibers, threading, etc. Thereby, the forgery prevention effect can be further enhanced.

【0024】本発明はこのようにして製造した基紙の、
スレッドを抄き込んだ面と反対の面に印刷適性良好な顔
料塗工層を設けることもできる。こうすることで、高度
の多色刷り印刷が可能な偽造防止用紙が得られる。紙の
印刷適性を改善するために、表面にカオリンや炭酸カル
シウム等の白色顔料とバインダーを主体とする顔料塗工
層を設けることは公知であり、アート紙やコート紙等と
呼ばれ大量に生産されている。本発明の顔料塗工層はこ
れら公知の処方がいずれも利用できる。例えば、カオリ
ン,炭酸カルシウムなどの白色顔料を水に分散させ、こ
れに澱粉,カゼイン,合成ゴムラテックス等のバインダ
ーと必要に応じて塗工用の副資材を適宜併用して、ブレ
ードコーターやエアーナイフコーター等の公知の塗工機
を使用して、通常5〜25g/m2塗工し、スーパーキ
ャレンダー処理する。
The present invention relates to the base paper thus produced,
A pigment coating layer having good printability can be provided on the surface opposite to the surface into which the thread is formed. In this way, anti-counterfeit paper capable of high-level multicolor printing can be obtained. In order to improve the printability of paper, it is known to provide a pigment coating layer mainly composed of a white pigment such as kaolin or calcium carbonate and a binder on the surface. Have been. Any of these known formulations can be used for the pigment coating layer of the present invention. For example, a white pigment such as kaolin or calcium carbonate is dispersed in water, and a binder such as starch, casein, or synthetic rubber latex and, if necessary, an auxiliary material for coating are appropriately used, and a blade coater or an air knife is used. Using a known coating machine such as a coater, coating is usually performed at 5 to 25 g / m 2, and a super calender treatment is performed.

【0025】本発明の偽造防止用紙は以上のようにして
製造される。本発明の構成の偽造防止用紙を製造するに
は高度の技術が必要であり、スレッドの光輝感と質感は
他の手段では得られない。本発明の偽造防止用紙を使用
して印刷物を製造する際、スレッドの抄き込まれている
面に印刷する場合はスレッドの少なくとも一部分が印刷
が施されないような図柄で印刷することが好ましい。ス
レッドの表面に印刷がされると、真珠顔料の光輝感が失
われる傾向にあり、偽造防止効果が低下するからであ
る。
The anti-counterfeit paper of the present invention is manufactured as described above. The production of the anti-counterfeit paper of the configuration of the present invention requires a high level of technology, and the glitter and texture of the thread cannot be obtained by other means. When a printed material is manufactured using the anti-counterfeit paper of the present invention, when printing is performed on the surface of the thread, it is preferable that at least a part of the thread is printed with a pattern that is not printed. This is because when printed on the surface of the thread, the glitter of the pearl pigment tends to be lost, and the forgery prevention effect is reduced.

【0026】図2は前にも説明した通り、本発明の偽造
防止用紙を使用して製造した偽造防止印刷物の一例であ
り、チケットを作製した例を図示してある。21は印刷
部分であり、その一部に白抜き部分22(印刷を施さな
い部分)を形成し、ミシン目23を設けてある。印刷部
分21のスレッドはインクで覆われるので真珠光輝色は
かなり失われるが、白抜き部分では明瞭に視認できる。
このチケットをカラー複写機で複写すると印刷部分の色
相は再現されるが、白抜き部分の真珠光輝色は全く再現
されない。従ってカラーコピー機で偽造したチケットを
使用して入場しようとしても、チケットの真贋を容易に
判定されてしまう。
FIG. 2 is an example of a forgery-prevention printed matter manufactured using the forgery-prevention paper of the present invention, as described above, and shows an example in which a ticket is produced. Reference numeral 21 denotes a printed portion, in which a white portion 22 (a portion not subjected to printing) is formed, and a perforation 23 is provided. Since the thread of the printing portion 21 is covered with ink, the pearlescent color is considerably lost, but is clearly visible in the white portion.
When this ticket is copied by a color copier, the hue of the printed portion is reproduced, but the pearlescent color of the white portion is not reproduced at all. Therefore, even if an attempt is made to enter using a ticket forged by a color copying machine, the authenticity of the ticket is easily determined.

【0027】真珠顔料の光輝色が複写されない理由は、
以下によるものと推定した。真珠顔料は板状の結晶構造
の粒子よりなり、真珠光輝色は表面から入射した光の多
重反射で発生し、金属蒸着面のようなギラギラした光輝
感では無く、穏やかな光輝感である。カラー複写機は原
稿への照射光の入射は45度前後であり、90度前後の
反射光で感光ドラムを露光する方式を採用している。こ
の角度では真珠光輝色はほとんど失われ、複写物には真
珠顔料の色は再現されない。
The reason why the glitter color of the pearl pigment is not copied is as follows.
It was presumed to be due to the following. The pearl pigment is composed of particles having a plate-like crystal structure, and the pearl brilliant color is generated by multiple reflection of light incident from the surface, and has a gentle brilliant feeling instead of a brilliant brilliant like a metal-deposited surface. The color copying machine employs a method in which irradiation light is incident on a document at about 45 degrees, and the photosensitive drum is exposed with reflected light at about 90 degrees. At this angle the pearlescent color is almost lost and the pearl pigment color is not reproduced in the copy.

【0028】[0028]

【実施例】【Example】

実施例1 スレッドの製造 坪量35g/m2の湿潤強度とサイズ性が良好な原紙の
両面に、酸化チタン被覆雲母粉末の乳白色真珠顔料(商
品名「イリオジン100」、メルク・ジャパン(株)製
造)100重量部、熱水溶解温度が約60℃のポリビニ
ルアルコール(クラレ(株)製造)100重量部より成
る塗料を用い、エアーナイフコーターを使用して片面5
g/m2ずつ塗工した。ついでマイクロスリッターを使
用して巾2.5mmのスレッドを製造しボビンに巻き取
った。 基紙の処方、及び基紙の製造 NBKP20重量部,LBKP80重量部を350ml
C.S.F.に叩解し、これに白土10重量部、紙力増
強剤(商品名「ポリストロン191」、荒川化学工業
(株)製)0.3重量部、サイズ剤(商品名「サイズパ
インE」、荒川化学工業(株)製)1.0重量部、硫酸
バンドを適量加え紙料を調製した。円網抄紙機を使用し
て坪量110g/m2の用紙を抄造時に、プレスロール
直前で上記構成のスレッドを100mm間隔にボビンか
ら繰り出した。後は常法に従い製造した(乾燥は多筒式
シリンダードライヤーで行った)。
Example 1 Manufacture of thread Milk-white pearl pigment of titanium oxide-coated mica powder (trade name "Iliodin 100", manufactured by Merck Japan Ltd.) on both sides of base paper having a basis weight of 35 g / m2 and good wet strength and good size. Using a paint consisting of 100 parts by weight and 100 parts by weight of polyvinyl alcohol (manufactured by Kuraray Co., Ltd.) having a hot water dissolving temperature of about 60 ° C., using an air knife coater for one side 5
g / m2. Next, a thread having a width of 2.5 mm was manufactured using a microslitter and wound around a bobbin. Prescription of base paper and manufacture of base paper 350 ml of 20 parts by weight of NBKP and 80 parts by weight of LBKP
C. S. F. 10 parts by weight of clay, 0.3 parts by weight of a paper strength agent (trade name "Polystron 191", manufactured by Arakawa Chemical Industry Co., Ltd.), a sizing agent (trade name "Size Pine E", Arakawa 1.0 part by weight (manufactured by Chemical Industry Co., Ltd.) and an appropriate amount of a sulfuric acid band were added to prepare a stock. At the time of making a paper having a basis weight of 110 g / m2 using a circular paper machine, the thread having the above-described configuration was unwound from the bobbin at an interval of 100 mm immediately before the press roll. Thereafter, it was manufactured according to a conventional method (drying was performed with a multi-cylinder cylinder dryer).

【0029】実施例2 実施例1の真珠顔料を、赤色の虹彩色を発する真珠顔料
(商品名「マーリン・ラスター・ピグメンツ、ハイライ
ト・スーパーレツド9430Z」、マール・コーポレー
ション製造)、緑色の虹彩色を発する真珠顔料(商品名
「マーリン・ラスター・ピグメンツ、ハイライト・スー
パーグリーン18430Z」、マール・コーポレーショ
ン製造)に替え、それぞれ別々の塗工液を調製し、他は
実施例1と同一の真珠顔料塗工紙を製造した。ついでマ
イクロスリッターを使用して巾2.5mmのスレッドを
製造しボビンに巻き取った。実施例1と同一の処方で、
長網抄紙機を使用して坪量110g/m2の用紙を抄造
時に、プレスロール直前で上記構成のスレッド2種類を
10mm間隔に互い違いにボビンより繰り出し、後は常
法に従い製造した(乾燥は多筒式シリンダードライヤー
で行った)。
Example 2 The pearl pigment of Example 1 was replaced with a pearl pigment emitting a red iris color (trade name “Merlin Raster Pigments, Highlight Super Redd 9430Z”, manufactured by Marl Corporation), a green rainbow Instead of a pearl pigment that produces coloring (trade name “Marlin Raster Pigments, Highlight Super Green 18430Z”, manufactured by Marl Corporation), separate coating liquids were prepared for each, and the other pearls were the same as in Example 1 Pigment coated paper was manufactured. Next, a thread having a width of 2.5 mm was manufactured using a microslitter and wound around a bobbin. With the same prescription as in Example 1,
When making a paper having a basis weight of 110 g / m2 using a fourdrinier paper machine, the two types of threads having the above-described structure were alternately unwound from a bobbin at an interval of 10 mm immediately before the press roll, and thereafter manufactured according to a conventional method (drying was performed frequently). Performed with a cylindrical cylinder dryer).

【0030】顔料塗工液の塗工 カオリン(商品名「UW90」、エンゲルハード(株)
製造)50重量部、炭酸カルシウム(商品名「タマパー
ルTP222H」、奥多摩工業(株)製造)50重量
部、分散剤(トリポリリン酸ナトリウム)0.25重量
部、酸化澱粉(日澱化学(株)製造)6重量部、スチレ
ン・ブタジエン共重合ラテックス(商品名「ニポールL
X407C」、日本ゼオン(株)製造)14重量部より
なる塗工液を上記基紙のスレッドの抄き込み面と反対の
面に、エアーナイフコーターを使用して15g/m2設
け、次いでスーパーキャレンダー処理し偽造防止用紙を
製造した。
Coating of pigment coating liquid Kaolin (trade name "UW90", Engelhard Co., Ltd.)
50 parts by weight, 50 parts by weight of calcium carbonate (trade name "Tamapearl TP222H", manufactured by Okutama Industry Co., Ltd.), 0.25 parts by weight of dispersant (sodium tripolyphosphate), oxidized starch (manufactured by Nisseki Chemical Co., Ltd.) ) 6 parts by weight of styrene-butadiene copolymer latex (trade name "Nipol L
X407C ", manufactured by ZEON CORPORATION) of 15 g / m @ 2 using an air knife coater on the surface of the base paper opposite to the threading surface of the thread. Rendered to produce anti-counterfeit paper.

【0031】パルプ回収試験 実施例1の抄紙後の用紙を用い高濃度パルパーでパルプ
回収試験を行った。用紙5重量部、水95重量部(即ち
パルプ濃度5%)、カセイソーダを0.1重量部の割合
でパルパーに仕込み、生蒸気を吹き込みながら回転さ
せ、温度60℃に上昇させたところ、スレッドは完全に
離解した。真珠顔料は微細化されパルプ中に完全に分散
しており、含まれる割合も極めて少量なので、回収パル
プを使用して抄紙してもこの影響は全く認められなかっ
た。
Pulp Recovery Test A pulp recovery test was carried out using a high-concentration pulper using the paper after the papermaking of Example 1. When 5 parts by weight of paper, 95 parts by weight of water (that is, pulp concentration: 5%), and caustic soda were charged into the pulper at a ratio of 0.1 part by weight, and rotated while blowing live steam, the temperature was raised to 60 ° C. Completely disintegrated. The pearl pigment is finely divided and completely dispersed in the pulp, and the content thereof is extremely small. Therefore, even if the recovered pulp is used for papermaking, this effect was not recognized at all.

【0032】[0032]

【発明の効果】以上説明したように本発明の偽造防止用
紙及び偽造防止印刷物は製造され、下記に述べるような
顕著な効果を有する。 1)用いるスレッドの光輝感は、真珠顔料の光輝感であ
るので、目で見た時に違和感が全く無い。 2)カラー複写機で複写を試みても、用紙に抄き込まれ
たスレッドの真珠顔料の光輝色は再現できないため、偽
造したものであるか否かの判定が即座に可能となる。 3)特に虹彩色を発する真珠顔料を使用した細片を使用
することで、意匠性も優れた偽造防止用紙を得ることが
できる。 4)真珠顔料塗工層に使用するバインダーを熱水可溶性
のバインダーにすることで、抄紙機のウェットパートで
溶解せずに、ドライヤーパートで基紙に強固に接着させ
ることが出きるので、この面にも印刷を施す場合には印
刷時にスレッドが脱落する問題が起こらない。 5)損紙、古紙からの製紙用繊維の回収が容易に行え
る。 6)片面に印刷適性良好な顔料塗工層を設けた構成の偽
造防止用紙は高級多色刷りが可能となる。 7)このような特性を生かし、本発明の偽造防止用紙
は、小切手用紙、株券用紙、債券用紙、紙幣用紙、商品
券用紙、パスポート用紙、各種チケット用紙、乗車券な
どに好適に使用できる。
As described above, the anti-counterfeit paper and anti-counterfeit print of the present invention are manufactured and have remarkable effects as described below. 1) Since the glitter of the thread used is the glitter of the pearl pigment, there is no discomfort when viewed with eyes. 2) Even if copying is attempted with a color copying machine, the brilliant color of the pearl pigment of the thread formed on the paper cannot be reproduced, so that it is possible to immediately judge whether or not the copy is forged. 3) In particular, by using a strip using a pearl pigment that emits an iris color, it is possible to obtain anti-counterfeit paper having excellent design properties. 4) By making the binder used for the pearl pigment coating layer a hot water-soluble binder, the binder can be firmly adhered to the base paper in the dryer part without being dissolved in the wet part of the paper machine. When printing is performed on the surface, the problem of the thread falling off during printing does not occur. 5) Papermaking fibers can be easily recovered from waste paper and waste paper. 6) Forgery prevention paper having a configuration in which a pigment coating layer having good printability is provided on one side enables high-grade multicolor printing. 7) By taking advantage of such characteristics, the anti-counterfeit paper of the present invention can be suitably used for check paper, stock paper, bond paper, bill paper, gift certificate paper, passport paper, various ticket papers, boarding tickets, and the like.

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

【図1】本発明の偽造防止用紙の一部拡大断面図であ
る。
FIG. 1 is a partially enlarged sectional view of a forgery prevention sheet of the present invention.

【図2】本発明の偽造防止印刷物の一例の上面図であ
る。
FIG. 2 is a top view of an example of a forgery-prevention print of the present invention.

【符号の説明】[Explanation of symbols]

1 スレッド 2 基紙 3 顔料塗工層 21 印刷部分 22 白抜き部分 DESCRIPTION OF SYMBOLS 1 Thread 2 Base paper 3 Pigment coating layer 21 Printing part 22 White part

───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7,DB名) D21H 17/00 - 27/42 G03G 21/00 ──────────────────────────────────────────────────続 き Continued on the front page (58) Field surveyed (Int. Cl. 7 , DB name) D21H 17/00-27/42 G03G 21/00

Claims (7)

(57)【特許請求の範囲】(57) [Claims] 【請求項1】 真珠顔料とバインダーを主体とする塗工
液を塗工した真珠顔料塗工紙を細巾にスリットしてなる
スレッド1を基紙2の少なくとも一方の面の表面に抄き
込んだことを特徴とする偽造防止用紙。
1. A thread 1 formed by narrowly slitting a pearl pigment-coated paper coated with a coating liquid mainly composed of a pearl pigment and a binder is formed on at least one surface of the base paper 2. Anti-counterfeit paper characterized by the fact that
【請求項2】 前記バインダーが冷水には不溶で、かつ
50℃以上の熱水に可溶であることを特徴とする請求項
1記載の偽造防止用紙。
2. The forgery prevention paper according to claim 1, wherein the binder is insoluble in cold water and soluble in hot water at 50 ° C. or higher.
【請求項3】 上記真珠顔料が虹彩色を有する真珠顔料
であることを特徴とする請求項1記載の偽造防止用紙。
3. The forgery prevention paper according to claim 1, wherein the pearl pigment is a pearl pigment having an iris color.
【請求項4】 真珠顔料とバインダーを主体とする塗工
液を塗工する原紙が、蛍光発色剤を併用してあることを
特徴とする請求項1記載の偽造防止用紙。
4. The anti-counterfeit paper according to claim 1, wherein the base paper coated with a coating liquid mainly composed of a pearl pigment and a binder uses a fluorescent coloring agent in combination.
【請求項5】 真珠顔料とバインダーを主体とする塗工
液に蛍光発色剤を併用することを特徴とする請求項1記
載の偽造防止用紙。
5. The anti-counterfeit paper according to claim 1, wherein a fluorescent color former is used in combination with a coating liquid mainly composed of a pearl pigment and a binder.
【請求項6】 基紙の片面が、真珠顔料とバインダーを
主体とする塗工液を塗工した真珠顔料塗工紙を細巾にス
リットしてなるスレッドを抄き込んだ面であり、他の面
に印刷適性良好な白色顔料塗工層を設けたことを特徴と
する偽造防止用紙。
6. One surface of a base paper is a surface on which a thread formed by slitting a pearl pigment-coated paper coated with a coating liquid mainly composed of a pearl pigment and a binder into a narrow width is used. Anti-counterfeit paper characterized in that a white pigment coating layer having good printability is provided on the surface of (1).
【請求項7】 真珠顔料とバインダーを主体とする塗工
液を塗工した真珠顔料塗工紙を細巾にスリットしてなる
スレッド1を基紙2の一方の面の表面に抄き込んだ偽造
防止用紙を使用し、スレッドの少なくとも一部分が印刷
が施されないような図柄で印刷21を施したことを特徴
とする偽造防止印刷物。
7. A thread 1 formed by narrowly slitting a pearl pigment coated paper coated with a coating liquid mainly composed of a pearl pigment and a binder, is formed on one surface of the base paper 2. A forgery-prevention printed matter, wherein forgery-prevention paper is used and at least a part of the thread is subjected to printing 21 with a pattern such that printing is not performed.
JP21816293A 1993-08-10 1993-08-10 Anti-counterfeit paper and anti-counterfeit printed matter Expired - Lifetime JP3022084B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP21816293A JP3022084B2 (en) 1993-08-10 1993-08-10 Anti-counterfeit paper and anti-counterfeit printed matter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP21816293A JP3022084B2 (en) 1993-08-10 1993-08-10 Anti-counterfeit paper and anti-counterfeit printed matter

Publications (2)

Publication Number Publication Date
JPH0756377A JPH0756377A (en) 1995-03-03
JP3022084B2 true JP3022084B2 (en) 2000-03-15

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JP21816293A Expired - Lifetime JP3022084B2 (en) 1993-08-10 1993-08-10 Anti-counterfeit paper and anti-counterfeit printed matter

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Families Citing this family (7)

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Publication number Priority date Publication date Assignee Title
EP1022625B1 (en) 1999-01-19 2017-06-28 Dai Nippon Printing Co., Ltd. Hologram transfer film
JP4541519B2 (en) * 2000-09-28 2010-09-08 共同印刷株式会社 Printed matter for preventing forgery and method for producing the same
JP2004142175A (en) * 2002-10-23 2004-05-20 Tokushu Paper Mfg Co Ltd Thread having truth or falsehood determining function and forgery preventive sheet using the same
JP4959156B2 (en) 2004-11-29 2012-06-20 三菱重工業株式会社 Heat recovery equipment
FR3004470B1 (en) * 2013-04-11 2015-05-22 Arjowiggins Security SECURITY ELEMENT COMPRISING AN INTERFERENTIAL PIGMENT AND A NANOMETRIC LOAD.
FR3004471B1 (en) 2013-04-11 2015-10-23 Arjowiggins Security SECURITY ELEMENT COMPRISING A MASKING STRUCTURE CONTAINING A MIXTURE OF NANOMETER CHARGES.
CN115110336A (en) * 2022-06-01 2022-09-27 湖北华工图像技术开发有限公司 Preparation method and application of packaging paper with double-sided patterns

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