JP2002088689A - Anticounterfeit paper - Google Patents
Anticounterfeit paperInfo
- Publication number
- JP2002088689A JP2002088689A JP2000270780A JP2000270780A JP2002088689A JP 2002088689 A JP2002088689 A JP 2002088689A JP 2000270780 A JP2000270780 A JP 2000270780A JP 2000270780 A JP2000270780 A JP 2000270780A JP 2002088689 A JP2002088689 A JP 2002088689A
- Authority
- JP
- Japan
- Prior art keywords
- paper
- fibers
- phosphor
- ultraviolet
- infrared
- 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.)
- Withdrawn
Links
Landscapes
- Paper (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】この発明は、有価証券、紙
幣、カード等に使用される偽造防止用紙に係り、詳しく
は紙の繊維中、繊維上または繊維間に少なくとも一種の
紫外線励起赤外線発光蛍光体を含有させたセキュリティ
性、大量生産性の高い偽造防止用紙に関するものであ
る。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to anti-counterfeit paper used for securities, banknotes, cards and the like, and more particularly to at least one kind of ultraviolet-excited infrared-emitting phosphor in paper fibers, on fibers or between fibers. The present invention relates to anti-counterfeit paper having high security and high mass productivity.
【０００２】[0002]
【従来の技術】近年、有価証券、紙幣、プリペイドカー
ド、ＩＤカード等の流通量は飛躍的に増大している。特
に金銭に係わる分野では、偽造防止、改鼠防止等を目的
として多くの提案がなされている。具体的にはカードの
一面に光学的に読み取り可能な識別用のパターンやバー
コードを設けてこれを光学的に読み取って真贋を判別す
る方式がある。また磁性粉末を含むインキもしくは塗料
を紙層間に印刷または塗布により磁性層を設けるもの
で、全面あるいはストライプ状または任意の模様に形成
する方式もある。また、ホログラムを用いた偽造を防止
する手段もいろいろ工夫されてきた。例えば、この種の
従来技術に特開平８−０６３０８６号公報、特開平９−
０７３２６１号公報、特開平９−１７５０６７号公報、
特開平１０−１４０５００号公報、特開平１１−３５２
８６３号公報などがある。2. Description of the Related Art In recent years, the circulation amount of securities, bills, prepaid cards, ID cards, and the like has increased dramatically. In particular, in the field of money, many proposals have been made for the purpose of preventing forgery, preventing rat rumbling, and the like. Specifically, there is a system in which an optically readable identification pattern or bar code is provided on one side of a card, and this is optically read to determine authenticity. Further, a magnetic layer is provided by printing or applying an ink or paint containing a magnetic powder between paper layers, and there is also a method in which the magnetic layer is formed on the entire surface or in a stripe shape or an arbitrary pattern. Various means have been devised to prevent forgery using holograms. For example, Japanese Patent Application Laid-Open Nos. H08-063086 and H9-90
No. 073261, JP-A-9-175067,
JP-A-10-140500, JP-A-11-352
No. 863 and the like.
【０００３】しかし、これらは偽造防止策として基体に
パターン、ストライプ、任意の模様などのパターン化し
た識別機能部分を印刷や塗布などによって形成されるも
のであり、ひとたび、その偽造防止策が判明した場合は
偽造あるいは改鼠の可能性がある。また、大量生産を行
うことは非常に困難である。However, these countermeasures are formed by printing or coating a patterned identification portion such as a pattern, a stripe, or an arbitrary pattern on a substrate as a counterfeit prevention measure. In some cases, they may be counterfeited or altered. Also, it is very difficult to perform mass production.
【０００４】一方、大量生産に向いた方法には、製紙時
に、紫外線励起可視光線発光の蛍光体を含有させた繊維
または短冊を混合して、紙の繊維中、繊維上または繊維
間に前記蛍光体を含有させた偽造防止用紙がある。この
方法には、具体的に特開平６−８９７８号公報、特開平
６−２８７０９号公報、特開平１０−２５０２７０号公
報、特開平８−２６０３９４号公報、特開平８−１３３
９３号公報、特開平８−１２０５９８号公報等がある。[0004] On the other hand, a method suitable for mass production is to mix fibers or strips containing a phosphor emitting ultraviolet-excited visible light at the time of papermaking, and to mix the above-mentioned fluorescent light in, on or between fibers of paper. There is anti-counterfeit paper containing a body. This method is specifically described in JP-A-6-8978, JP-A-6-28709, JP-A-10-250270, JP-A-8-260394, and JP-A-8-133.
No. 93, JP-A-8-120598 and the like.
【０００５】[0005]
【発明が解決しようとする課題】しかし、これらに使用
される蛍光体は紫外線励起可視光線発光の蛍光体のため
紫外線をあてて視認することが容易であり、またこの種
の蛍光体は入手が容易であるため、偽造防止の面では劣
っていた。また、特開平１０−２６９３３３号公報で
は、赤外線励起可視光線発光または可視光線励起可視光
線発光の蛍光体を使用したものであるが、これも可視光
線発光であるため視認でき、偽造防止面では劣ってい
た。However, since the phosphors used in these phosphors emit ultraviolet rays and emit visible light, they can be easily viewed by irradiating with ultraviolet rays, and this kind of phosphor is not available. Because it was easy, it was inferior in terms of forgery prevention. Also, in Japanese Patent Application Laid-Open No. 10-269333, a phosphor that emits infrared-excited visible light or a visible-light-excited visible light is used. I was
【０００６】本発明の目的は、大量生産性、偽造防止性
の両面に優れた偽造防止用紙を提供することにある。An object of the present invention is to provide anti-counterfeit paper excellent in both mass productivity and anti-counterfeiting properties.
【０００７】[0007]
【発明の実施の形態】本発明に係る偽造防止用紙は、上
記の目的を達成するために、製紙時に、紫外線励起赤外
線発光の蛍光体を含有させた繊維または短冊を混合し
て、紙の繊維中、繊維上または繊維間に紫外線励起赤外
線発光蛍光体を含有させたものである。本発明のよう
に、紫外線励起赤外線発光の蛍光体を使用すると、紙の
繊維中、繊維上または繊維間に含有させた蛍光体の存在
を視認することができなくなり、偽造防止性が飛躍的に
向上する。また、大量生産性に優れているという従来の
長所はそのまま維持している。BEST MODE FOR CARRYING OUT THE INVENTION In order to achieve the above object, a paper for preventing forgery according to the present invention is obtained by mixing fibers or strips containing a phosphor which emits ultraviolet-excited infrared light during papermaking. Medium, on or between fibers containing ultraviolet-excited infrared-emitting phosphor. As in the present invention, when a phosphor that emits ultraviolet light and emits infrared rays is used, the presence of the phosphor contained in the fibers of the paper, on the fibers or between the fibers cannot be visually recognized, and the anti-counterfeiting property is dramatically improved. improves. In addition, the conventional advantages of excellent mass productivity are maintained.
【０００８】本発明の偽造防止用紙に含まれる紫外線励
起赤外線発光蛍光体の有無およびパターンの読み出しに
は、シリコン製フォトダイオードやＣＣＤセンサ等の手
段で検知する。すなわち、紫外線を照射しながら、上記
の検出手段で赤外線発光の有無またはそのパターンを検
出することで、真贋を判別することができ、これにより
高いセキュリティ性が得られる。勿論、他のセキュリテ
ィ手段と組み合わせてもよい。The presence or absence of the ultraviolet-excited infrared-emitting phosphor contained in the anti-counterfeit paper of the present invention and the reading of the pattern are detected by means such as a silicon photodiode or a CCD sensor. That is, authenticity can be determined by detecting the presence or absence or pattern of infrared light emission by the above-described detection means while irradiating ultraviolet rays, whereby high security can be obtained. Of course, you may combine with another security means.
【０００９】また、可視光線発光蛍光体を含有する繊維
または短冊を、紫外線励起赤外線発光蛍光体を含有する
繊維または短冊と共に混抄して、迷彩を施してもよい。[0009] Fibers or strips containing a visible light emitting phosphor may be mixed with fibers or strips containing an ultraviolet-excited infrared light emitting phosphor to give camouflage.
【００１０】さらに、この方法で得られる偽造防止用紙
の赤外線発光パターンは、完全にランダムで、指紋と同
様に同一のパターンは存在しないので、このランダムパ
ターンを読み取って記録・登録しておけば、読み取った
ランダムパターンと登録されたパターンを比較すること
で偽造防止用紙の真贋を完全に判別できる。但し、この
方法は、発行枚数が極めて少なく、且つ高度のセキュリ
ティ性を要求される用途、例えば、１００万株単位の非
常に高額な株券、高度のセキュリティ性を要する情報へ
のアクセスＩＤカードに使用される。この方式を採用す
れば、紫外線励起赤外線発光蛍光体により偽造防止対策
がなされていることが判ったとしても偽造は不可能であ
る。Furthermore, the infrared emission pattern of the anti-counterfeit paper obtained by this method is completely random and there is no identical pattern like a fingerprint, so if this random pattern is read and recorded / registered, By comparing the read random pattern with the registered pattern, the authenticity of the forgery prevention paper can be completely determined. However, this method is used for applications where the number of issued sheets is extremely small and high security is required, for example, an extremely expensive stock certificate in units of one million shares, and an access ID card for access to information requiring high security. Is done. If this method is adopted, forgery is impossible even if it is found that countermeasures against forgery are taken by the ultraviolet-excited infrared-emitting phosphor.
【００１１】本発明に係る紙の基材となる繊維には、通
常の紙に使用される材料を用いることができる。このよ
うな材料には、セルロース繊維、合成プラスチック繊維
があるが、セルロース繊維が用いて好適である。The fibers used as the base material of the paper according to the present invention can be the materials used for ordinary paper. Such materials include cellulose fibers and synthetic plastic fibers, but cellulose fibers are preferred.
【００１２】本発明に用いられる紫外線励起赤外発光蛍
光体としては、耐光性や耐候性に優れた無機蛍光体が好
ましい。無機蛍光体としては、ＹＶＯ4 ：Ｎｄ、Ｙ2 Ｏ
2 Ｓ：Ｎｄなどが挙げられる。この蛍光体の粒径は、0.
０１μｍ〜１０μｍが好ましく使用される。0.０１μｍ
未満では発光強度が弱くなり、１０μｍ越えると繊維や
短冊から脱落しやすくなるからである。As the ultraviolet-excited infrared-emitting phosphor used in the present invention, an inorganic phosphor excellent in light resistance and weather resistance is preferable. As inorganic phosphors, YVO 4 : Nd, Y 2 O
2 S: Nd and the like. The particle size of this phosphor is 0.
01 μm to 10 μm are preferably used. 0.01 μm
If it is less than 10 μm, the light emission intensity will be weak, and if it exceeds 10 μm, it will be easy to fall off from fibers or strips.
【００１３】また、必要に応じて他の染料、顔料、繊維
状物質、球状微粒子、金属微粒子などを１種以上併用し
てもよい。また、必要に応じて印刷がしやすいようにイ
ンク受容層を設けてもよい。If necessary, one or more other dyes, pigments, fibrous substances, spherical fine particles, metal fine particles and the like may be used in combination. Further, an ink receiving layer may be provided as necessary to facilitate printing.
【００１４】さらに、このような偽造防止用紙は、紫外
線と赤外線を透過するプラスチックフィルム等でラミネ
ートしてもよい。Further, such anti-counterfeit paper may be laminated with a plastic film that transmits ultraviolet light and infrared light.
【００１５】本発明の紫外線励起赤外線発光蛍光体を含
有する繊維または短冊の製造には、紫外線励起赤外線発
光蛍光体をプラスチック中に練込みノズルから押し出し
て繊維状にしたのち裁断する方法、紫外線励起赤外線発
光蛍光体を含むインク等の塗料を糸に含漬したのち裁断
する方法、紫外線励起赤外線発光蛍光体を含むインク等
の塗料をセルロース繊維から成る紙に含漬したのち裁断
する方法、等を用いることができる。The method of producing a fiber or a strip containing the ultraviolet-excited infrared-emitting phosphor of the present invention is a method in which the ultraviolet-excited infrared-emitting phosphor is kneaded into a plastic, extruded from a nozzle into a fibrous form, and then cut. A method of impregnating the yarn with a paint such as an ink containing an infrared light emitting phosphor and then cutting the same, a method of impregnating a paint such as an ink containing an ultraviolet-excited infrared light emitting phosphor on paper made of cellulose fiber, and cutting. Can be used.
【００１６】塗料に使用する結合剤としては、ポリオー
ル樹脂、ポリウレタン樹脂、アクリル樹脂、ポリエステ
ル樹脂、ポリアミド樹脂、塩化ビニル樹脂等が使用され
る。また、蛍光体の分散性を向上する目的でスルホ基、
カルボキシル基、ホスホ基、水酸基、エポキシ基等の官
能基を樹脂に導入してもよい。As the binder used in the paint, polyol resin, polyurethane resin, acrylic resin, polyester resin, polyamide resin, vinyl chloride resin and the like are used. Further, for the purpose of improving the dispersibility of the phosphor, a sulfo group,
Functional groups such as a carboxyl group, a phospho group, a hydroxyl group and an epoxy group may be introduced into the resin.
【００１７】プラスチック繊維の材料には、ポリアミド
樹脂、ポリエステル樹脂等が使用できる。As a material of the plastic fiber, a polyamide resin, a polyester resin or the like can be used.
【００１８】偽造防止用紙の製造には、紫外線励起赤外
線発光蛍光体を含有する繊維または短冊と、セルロース
繊維やプラスチック繊維とを混合して抄造すればよい。
さらに必要に応じて、他の染料、顔料、繊維状物質、球
状微粒子、金属微粒子を混抄時に単独または結合剤と共
に添加してもよい。For the manufacture of anti-counterfeit paper, the fibers or strips containing the ultraviolet-excited infrared-emitting phosphor and cellulose fibers or plastic fibers may be mixed and made.
Further, if necessary, other dyes, pigments, fibrous substances, spherical fine particles, and metal fine particles may be added alone or together with a binder during mixing.
【００１９】[0019]
【実施例】次に本発明の実施例を説明する。以下におい
て、部とあるのは重量部を意味する。Next, embodiments of the present invention will be described. In the following, “parts” means “parts by weight”.
【００２０】 （実施例１） アクリルポリオール ２０部 トリレンジイソシアネート ５部 メチルエチルケトン ６０部 トルエン ２０部 蛍光体（Ｙ2 Ｏ2 Ｓ：Ｎｄ）粒径0.１μｍ ５部 上記組成からなる塗料を0.０５mmのレーヨン繊維に含浸
させた後、これを細かく裁断した。この裁断したチップ
を紙の抄造工程で混入させて、Ｂ５サイズの用紙１００
枚を作成した。(Example 1) Acrylic polyol 20 parts Tolylene diisocyanate 5 parts Methyl ethyl ketone 60 parts Toluene 20 parts Phosphor (Y 2 O 2 S: Nd) Particle size 0.1 μm 5 parts A paint having the above composition is 0.05 mm. After being impregnated with the rayon fiber of the above, this was finely cut. The cut chips are mixed in a paper making process to form a B5 size paper 100.
I made a piece.
【００２１】（実施例２）上記組成からなる塗料を0.１
mmの綿繊維に含浸させた後、これを細かく裁断した。こ
の裁断したチップを紙の抄造工程で混入させて、Ｂ５サ
イズの用紙１００枚用紙を作成した。(Example 2) A paint having the above composition was used in an amount of 0.1.
After impregnating the cotton fibers of mm, the fibers were cut into small pieces. The cut chips were mixed in a paper making process to prepare 100 sheets of B5 size paper.
【００２２】このような工程で製造した実施例１および
実施例２の用紙は目視では全く識別できなかった。励起
光源として、近紫外光源（ブラックライト）のもとでも
目視では全く識別できず、シリコン製フォトダイオード
あるいはＣＣＤセンサーにより、赤外線発光を検出し
た。また、発光パターンは実施例１および実施例２の用
紙２００枚ですべて異なり、同一パターンは全く存在し
なかった。The sheets of Examples 1 and 2 manufactured in such a process could not be visually identified at all. As an excitation light source, no near-ultraviolet light source (black light) could be visually identified, and infrared light emission was detected by a silicon photodiode or a CCD sensor. Further, the light emission patterns were all different between the 200 sheets of Example 1 and Example 2, and the same pattern did not exist at all.
【００２３】[0023]
【発明の効果】本発明の偽造防止用紙は、目視では全く
識別できず、また、その発光パターンは１枚１枚異なっ
ており、偽造、改鼠することが極めて困難であり、偽造
防止用紙として優れている。また、かつ量産性にも優れ
ている。The anti-counterfeit paper of the present invention cannot be visually identified at all, and its emission pattern is different one by one. Are better. It is also excellent in mass productivity.
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2C005 HA02 HB01 HB04 HB10 JB14 LB16 4L055 AF09 AF10 AF43 AF44 AG04 AG71 AH02 AH37 EA16 FA30 GA45 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C005 HA02 HB01 HB04 HB10 JB14 LB16 4L055 AF09 AF10 AF43 AF44 AG04 AG71 AH02 AH37 EA16 FA30 GA45
Claims (2)
体を含有させた偽造防止用紙において、該蛍光体が少な
くとも一種の紫外線励起赤外線発光蛍光体であることを
特徴とする偽造防止用紙。1. A forgery-preventing paper containing a phosphor in or on a fiber of a paper, wherein the phosphor is at least one kind of ultraviolet-excited infrared-emitting phosphor. .
光体であって、該蛍光体の粒径が、0.０１〜１０μｍで
ある請求項１記載の偽造防止用紙。2. The forgery prevention paper according to claim 1, wherein the ultraviolet-excited infrared-emitting phosphor is an inorganic phosphor, and the particle size of the phosphor is 0.01 to 10 μm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000270780A JP2002088689A (en) | 2000-09-06 | 2000-09-06 | Anticounterfeit paper |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2000270780A JP2002088689A (en) | 2000-09-06 | 2000-09-06 | Anticounterfeit paper |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JP2002088689A true JP2002088689A (en) | 2002-03-27 |
Family
ID=18757159
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2000270780A Withdrawn JP2002088689A (en) | 2000-09-06 | 2000-09-06 | Anticounterfeit paper |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2002088689A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010182249A (en) * | 2009-02-09 | 2010-08-19 | Kalbas Japan Ltd | Authentication determination system for label sheet, reference image acquiring apparatus, authentication determination apparatus and label sheet used for them |
| JP2014009257A (en) * | 2012-06-28 | 2014-01-20 | Nemoto Lumi-Materials Co Ltd | Infrared light-emitting phosphor |
| CN105283602A (en) * | 2013-04-11 | 2016-01-27 | 法商亚宙维金斯安全公司 | Security element comprising an interference pigment and a nanometric filler |
| CN105308240A (en) * | 2013-04-11 | 2016-02-03 | 法商亚宙维金斯安全公司 | Security element comprising a masking structure containing a mixture of nanometric fillers |
-
2000
- 2000-09-06 JP JP2000270780A patent/JP2002088689A/en not_active Withdrawn
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010182249A (en) * | 2009-02-09 | 2010-08-19 | Kalbas Japan Ltd | Authentication determination system for label sheet, reference image acquiring apparatus, authentication determination apparatus and label sheet used for them |
| JP2014009257A (en) * | 2012-06-28 | 2014-01-20 | Nemoto Lumi-Materials Co Ltd | Infrared light-emitting phosphor |
| CN105283602A (en) * | 2013-04-11 | 2016-01-27 | 法商亚宙维金斯安全公司 | Security element comprising an interference pigment and a nanometric filler |
| CN105308240A (en) * | 2013-04-11 | 2016-02-03 | 法商亚宙维金斯安全公司 | Security element comprising a masking structure containing a mixture of nanometric fillers |
| US10328738B2 (en) | 2013-04-11 | 2019-06-25 | Oberthur Fiduciaire Sas | Security element comprising a masking structure containing a mixture of nanometric fillers |
| US10336124B2 (en) | 2013-04-11 | 2019-07-02 | Oberthur Fiduciaire Sas | Security element comprising an interference pigment and a nanometric filler |
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