JP2001019887A - Ink for forgery prevention and thermal ribbon - Google Patents

Ink for forgery prevention and thermal ribbon

Info

Publication number
JP2001019887A
JP2001019887A JP22679299A JP22679299A JP2001019887A JP 2001019887 A JP2001019887 A JP 2001019887A JP 22679299 A JP22679299 A JP 22679299A JP 22679299 A JP22679299 A JP 22679299A JP 2001019887 A JP2001019887 A JP 2001019887A
Authority
JP
Japan
Prior art keywords
ink
resin
printing
colorant
absorption
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.)
Pending
Application number
JP22679299A
Other languages
Japanese (ja)
Inventor
Ichiro Ota
一朗 太田
Shunichi Ueda
俊一 上田
Hisayuki Tanabe
久幸 田邊
Kunio Hata
邦雄 畑
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.)
Nippon Kores KK
Nippon Totor Co Ltd
Original Assignee
Nippon Kores KK
Nippon Totor 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 Nippon Kores KK, Nippon Totor Co Ltd filed Critical Nippon Kores KK
Priority to JP22679299A priority Critical patent/JP2001019887A/en
Publication of JP2001019887A publication Critical patent/JP2001019887A/en
Pending legal-status Critical Current

Links

Landscapes

  • Paints Or Removers (AREA)
  • Inks, Pencil-Leads, Or Crayons (AREA)
  • Impression-Transfer Materials And Handling Thereof (AREA)
  • Printing Methods (AREA)

Abstract

PROBLEM TO BE SOLVED: To obtain an ink which enables truth to be distinguished from falsehood with a sensor capable of suitably detecting when a pattern is printed on a mounting paper by adding a pigment, an additive, and a dispersant to a resin to prepare an ink vehicle and compounding thereinto a composition comprising a colorant exhibiting absorption in an infrared range. SOLUTION: A natural resin, such as rosin or shellac, or a synthetic resin, such as vinyl resin or an acrylic resin, is used as the resin. As the colorant, a colorant, such as a cyanine-, phthalocyanine-, quinone-, or triphenol-based one, exhibiting reflection in the range of 600-670 nm and absorption in the range of 850-950 nm is used. The colorant is compounded in such an amount as not to cause a considerable change in color tone, i.e., 0.5-3.0 wt.%. The ink is used for spot printing in usual printing or is used for printing a pattern as a part of design, and is used for printing gold notes, gift certificates, prepaid cards, etc. In order to enable the ink to be transferred to a thermal transfer paper, the ink containing a colorant exhibiting infrared absorption is applied to a film, etc., to give a thermal ribbon.

Description

【発明の詳細な説明】DETAILED DESCRIPTION OF THE INVENTION

【0001】[0001]

【発明の属する技術分野】本発明は有価証券、各種のカ
ードにおいて、外観上は偽造防止策を施していることを
示すことなく、カラーコピー、ワードプロセッサー等に
よって偽造,改竄した場合にその真偽を判定する技術分
野に属する。
BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to securities and various types of cards, which are not forged or tampered with a color copy, word processor, etc., without showing the appearance of counterfeit prevention measures. Belongs to the technical field of judgment.

【0002】[0002]

【従来の技術】財産的価値を有する有価証券、各種のカ
ード類の使用が激増しており、これらの偽造もまた増加
しつつあって、特開平9−261418号公報等に見る
ように、簡単に偽造されないように用紙にすかしを入れ
たり、特殊インキによって印刷して、コピーによっては
別な色に変化するようにしたり、又は箔を付してたやす
く複製できないようにする発明が多くなされている。
2. Description of the Related Art The use of securities having various property values and various kinds of cards has been rapidly increasing, and counterfeiting thereof has also been increasing, and as shown in Japanese Patent Application Laid-Open No. 9-261418, etc. Many inventions have been made to put watermarks on paper to prevent counterfeiting, to print with special ink, to change to a different color depending on the copy, or to attach a foil so that it cannot be copied easily. ing.

【0003】従来紙にすかしを入れたり、精巧な多色刷
による偽造防止策が行われてきたが、特殊なインキの使
用によってカラーコピーでは変色して真偽が簡単に区別
ができる工夫がなされていても、多色刷については肉眼
では簡単に識別することが困難になるほど印刷技術が向
上して真偽の判断が難しくなってきた。
Conventionally, countermeasures for preventing forgery by adding watermarks to paper or using sophisticated multi-color printing have been taken. However, the use of special inks has changed the color of color copies to make it possible to easily discriminate the authenticity. However, as for multicolor printing, the more difficult it is to identify easily with the naked eye, the more the printing technology has improved, and it has become difficult to determine whether the printing is true or false.

【0004】従って、可視領域での偽造防止には限界が
あり、これに紫外又は赤外領域の吸収の有無を追加する
ことによって、真偽の判断が容易になるが、使用する色
素の分子構造から見て、紫外部より赤外部の吸収を用い
る方が利用範囲も広く、また赤外部では、できるだけ鋭
い狭い吸収帯を有するものが望ましく、800〜100
0nmの領域に吸収を示すような色素配合が利用されて
きた。
Accordingly, there is a limit to the prevention of forgery in the visible region, and the addition of the presence or absence of absorption in the ultraviolet or infrared region makes it easier to judge the authenticity. In view of this, it is preferable to use the absorption in the infrared region rather than the ultraviolet region, and the infrared region preferably has a narrow absorption band as sharp as possible.
Dye formulations have been utilized that exhibit absorption in the 0 nm region.

【0005】ふつう、偽造には通常の印刷方法又はカラ
ーコピー等の電子複写機による方法とが使用されてきた
ようであるが、複写機の解像度が向上して、コピーとオ
リジナルとの区別ができにくくなってきており、また通
常の印刷インキによる精巧な印刷では偽造防止をするこ
とは困難になってきている。
[0005] Usually, forgery uses a normal printing method or a method using an electronic copying machine such as a color copy. However, the resolution of the copying machine is improved so that the original can be distinguished from the copy. It is becoming difficult to prevent counterfeiting by sophisticated printing using ordinary printing ink.

【0006】[0006]

【課題を解決するための手段】偽造防止の対策として用
紙の構造の中に特殊吸収する物質を挿入する方法と印刷
インキ自体の組成によってコピー等によっては再現しに
くくするか、簡単に判別しうる組成を追加する方法とが
ある。
As a countermeasure for preventing forgery, it is possible to easily determine whether it is difficult to reproduce a copy or the like depending on the method of inserting a specially absorbing substance into the paper structure and the composition of the printing ink itself. There is a method of adding a composition.

【0007】ロジン、シェラック等の天然樹脂、ビニル
系、ポリエステル系、アクリル系の樹脂等の合成樹脂か
らなる樹脂をベースとして、インキビヒクルに黒色以外
のシアニン系、フタロシアン系、キノン系、アントラキ
ノン系、トリアゾール系、トリフェニルアミン系、トリ
スアゾ系、アミニウム系、ポリメチン系、ジイモニウム
系等の赤外吸収を示す色素の中から選択して配合し、特
定の波長において最大吸収をするように溶剤で分散し、
ロールミル、アトライター、ハンディミル等を用いて混
和してインキ化してオフセット印刷、スクリーン印刷等
によって印刷する。
[0007] Based on resins consisting of natural resins such as rosin and shellac, and synthetic resins such as vinyl-based, polyester-based, and acrylic-based resins, the ink vehicle uses cyanine-based, phthalocyanine-based, quinone-based, and anthraquinone-based resins other than black. , Triazole-based, triphenylamine-based, trisazo-based, aminium-based, polymethine-based, diimonium-based, etc. And
Using a roll mill, an attritor, a handy mill, or the like, the ink is mixed to form an ink, and printing is performed by offset printing, screen printing, or the like.

【0008】[0008]

【発明の実施の形態】シェラック、ロジン等の天然樹脂
及びビニル系、アクリル系、スチレン系、ポリオレフィ
ン系、フェノール系、メラミン系、ポリエステル系等の
合成樹脂を配合し、無機顔料、添加剤、必要に応じて
赤、黄又はオレンジ色素を加えて着色したインキ素材に
色調がくすまない程度の赤外吸収を示す色素を選択し、
550〜680nmでは殆ど吸収を示さず、850〜9
50nmにおいて、大きな吸収を示すようにし、かつ狭
い吸収領域を有するように、かつ色調に大きな変化を与
えない程度の0.5〜3.0%を配合し、通常の印刷イ
ンキとも調和しやすいようにし、可視領域では橙色、黄
色、桃色、赤色等の各種のカラーとして紙又はプラスチ
ックの材料の上にオフセット印刷、通常のスクリーン印
刷又はグラビア印刷法等を用いて、金券、商品券、プリ
ペイドカード等に印刷する。
BEST MODE FOR CARRYING OUT THE INVENTION Natural resins such as shellac and rosin and synthetic resins such as vinyl, acrylic, styrene, polyolefin, phenol, melamine and polyester are blended, and inorganic pigments, additives, In accordance with the red, yellow or orange dye added to the color of the ink material to select a dye that shows infrared absorption of the color tone so dull,
It hardly shows absorption at 550 to 680 nm,
At 50 nm, 0.5 to 3.0% is added so as to exhibit large absorption and to have a narrow absorption region, and not to give a large change in color tone, so that it can be easily harmonized with ordinary printing inks. In the visible region, various colors such as orange, yellow, pink, red, etc., on paper or plastic materials, using offset printing, normal screen printing or gravure printing method, gold voucher, gift certificate, prepaid card etc. Print on

【0009】[0009]

【実施例】アクリル系樹脂25%、無機顔料として酸化
チタン55%、多官能アクリレートモノマー10%、添
加剤、光重合開始剤、分散剤を混合した紫外線硬化型イ
ンキビヒクルから構成されるインキ素材に、赤外吸収剤
として表1に示すデータに基づき可視部、赤外部との反
射率の差が比較的大きくなるように、シアニン系色素を
全量に対し約1%を加えて可視領域では吸収が少なく、
かつ900nmでピークの吸収を示す組成とし、この波
長で最も鋭敏に反応しうるセンサーを用いて検出する構
成とする。
EXAMPLE An ink material composed of an ultraviolet curable ink vehicle obtained by mixing 25% of an acrylic resin, 55% of titanium oxide as an inorganic pigment, 10% of a polyfunctional acrylate monomer, an additive, a photopolymerization initiator, and a dispersant. On the basis of the data shown in Table 1, the absorption in the visible region is increased by adding about 1% to the total amount of the cyanine dye so that the difference in reflectance between the visible part and the infrared part becomes relatively large based on the data shown in Table 1 as an infrared absorbent. Less,
The composition has a peak absorption at 900 nm and is detected using a sensor that can react most sharply at this wavelength.

【表1】 [Table 1]

【0010】通常の印刷の中に赤外吸収を示すインキを
用いてスポット印刷するか、デザインの一部として使用
することによって何の違和感を生ずることのないよう
に、偽造防止策がどのように施してあるかを区別しにく
いように図柄をプリントする。
How to prevent forgery so as not to cause any discomfort by spot printing using ink exhibiting infrared absorption during normal printing or as a part of the design Print the pattern so that it is difficult to distinguish whether it is applied.

【0011】また紙質、プラスチック質の台紙からなる
熱転写紙に転写しうるように赤外吸収を示す色素成分を
含有するインキをPETフィルム等に塗布することによ
って偽装防止を可能とするサーマルリボンを作成でき
る。
Further, a thermal ribbon capable of preventing camouflage by applying an ink containing a pigment component exhibiting infrared absorption to a PET film or the like so that the thermal ribbon can be transferred to thermal transfer paper made of paper or plastic backing paper. it can.

【0012】シアニン系色素を約1%加えた場合、81
0nmと880nmのREDセンサーで読み取ることに
よって、簡単に真偽を識別しうる。
When about 1% of a cyanine dye is added, 81%
By reading with the 0 nm and 880 nm RED sensors, the authenticity can be easily identified.

【0013】インキビヒクルとしては熱硬化樹脂を配合
した熱乾燥型素材を用い、これに赤外吸収を示すシアニ
ン系色素を添加した偽造防止用インキの構成も可能であ
る。
As the ink vehicle, a heat-drying type material containing a thermosetting resin is used, and a forgery prevention ink in which a cyanine dye exhibiting infrared absorption is added thereto is also possible.

【0014】[0014]

【発明の効果】赤外吸収インキは通常の状態では他の印
刷インキとは違和感を感じさせない普通の色素の外観を
有せしめ、用紙そのものに赤外吸収を示す物質を混入す
る方法ではなく、色素成分そのものの中に赤外吸収特性
を有する成分を付与しているため、外観上図柄の一部分
又は全体について偽造防止策が施してあるか否かの識別
ができないという特徴を有する。
The infrared-absorbing ink has the appearance of a normal dye that does not give a feeling of incompatibility with other printing inks in a normal state. Since a component having infrared absorption properties is provided in the component itself, it is not possible to distinguish whether or not a part or the whole of the design has been subjected to counterfeit prevention measures in appearance.

【0015】極めて狭い範囲の吸収帯を有するために、
鋭敏にかつ瞬時に検出して真偽の識別が容易にできると
いう特徴を有する。
To have a very narrow range of absorption bands,
It has the feature that it can be detected sharply and instantaneously to make it easy to identify the authenticity.

【0016】使用するREDセンサーでは使用されてい
る赤外吸収色素成分によって波長領域の異なるものを使
用することによって、瞬時に赤外吸収インキによる印刷
対象を読み取り、スムーズに真偽の判断をなしうるとい
う特徴を有する。
In the RED sensor to be used, the object to be printed with the infrared-absorbing ink can be instantaneously read by using one having a different wavelength range depending on the infrared-absorbing dye component used, so that the authenticity can be smoothly determined. It has the feature of.

【0017】赤外吸収色素は可視領域では殆ど吸収性を
示さないため、通常の印刷インキに配合しても色調にと
くに影響を与えることなく、使用できるという特徴をも
有する。
An infrared absorbing dye has almost no absorption in the visible region, and thus has the characteristic that it can be used without particularly affecting the color tone even when it is blended with a normal printing ink.

【0018】配合する色素量を色調をくすませないため
に3.1%以上にはならないようにし、かつ配合する色
素成分、従って赤外吸収帯に対応して570nm、61
0nm、630nm、660nm、700nm、850
nm、880nm、900nmのセンサーの中から適切
な機種の組み合わせを選択することによって、極めて短
時間に真偽を判別しうるという特徴を有する。
The amount of the dye to be blended should not exceed 3.1% in order not to dull the color tone, and 570 nm, 61% corresponding to the dye component to be blended, and hence the infrared absorption band.
0 nm, 630 nm, 660 nm, 700 nm, 850
By selecting an appropriate combination of models from among the sensors of nm, 880 nm, and 900 nm, it is possible to determine the authenticity in an extremely short time.

【0019】熱転写用材を用いることにより、速やか
に、かつ的確に図柄を目的物に転写して、短時間内に偽
装防止処理を可能ならしめるという特徴をも有する。
The use of the thermal transfer material also has the characteristic that the pattern can be quickly and accurately transferred to the target object, and the disguise prevention process can be performed within a short time.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 上田 俊一 大阪市西淀川区姫里3丁目12番25号 日本 コレス株式会社内 (72)発明者 田邊 久幸 大阪市西淀川区姫里3丁目12番25号 日本 コレス株式会社内 (72)発明者 畑 邦雄 大阪市西淀川区姫里3丁目12番25号 日本 コレス株式会社内 Fターム(参考) 2C068 AA06 AA15 BB04 BB08 BB11 BC03 BC13 BC24 BC33 BD49 2H113 AA03 BA23 BB02 BC09 CA39 CA42 DA29 DA32 EA01 4J038 BA221 BA231 CD001 CF011 CG141 JB27 KA08 KA09 PC08 PC10 4J039 AB08 AB09 AD01 AD02 AD03 AD04 AD05 AD06 AD07 AD08 AD09 AD10 AE02 AE03 AE06 BC17 BC29 BC39 BC60 BE01 BE22 FA02 GA02 GA03 GA06 GA10 GA13  ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Shunichi Ueda 3--12-25 Himezato, Nishiyodogawa-ku, Osaka Japan Chores Co., Ltd. (72) Inventor Kunio Hata 3-12-25 Himezato, Nishiyodogawa-ku, Osaka-shi F-term (reference) 2C068 AA06 AA15 BB04 BB08 BB11 BC03 BC13 BC24 BC33 BD49 2H113 AA03 BA23 BB02 BC09 CA39 CA42 DA29 DA32 EA01 4J038 BA221 BA231 CD001 CF011 CG141 JB27 KA08 KA09 PC08 PC10 4J039 AB08 AB09 AD01 AD02 AD03 AD04 AD05 AD06 AD07 AD08 AD09 AD10 AE02 AE03 AE06 BC17 BC29 BC39 BC60 BE01 BE22 FA02 GA02 GA03 GA06 GA10 GA13

Claims (2)

【特許請求の範囲】[Claims] 【請求項1】ロジン、シェラック等の天然樹脂、ビニル
系樹脂、アクリル系樹脂等の合成樹脂とからなる樹脂に
顔料、添加剤、分散剤を加えて、可視領域では殆ど吸収
を示さない通常のインキビヒクルを調合し、赤外領域で
吸収を示すシアニン系、フタロシアン系、キノン系、ト
リフェノール系等の色素からなる組成物を配合してなる
インキを用い、紙質又はプラスチック質の台紙に図柄を
印刷した時、これに適応して検出できるセンサーを用
い、600〜670nmでは反射を示し、850〜95
0nmにおいて吸収を示す状態で真偽の判別を可能とす
ることを特徴とする偽造防止用インキ。
A pigment, an additive or a dispersant is added to a resin composed of a natural resin such as rosin and shellac, and a synthetic resin such as a vinyl resin and an acrylic resin, so that an ordinary resin hardly absorbs in the visible region. Formulate an ink vehicle and use an ink containing a composition consisting of a dye such as cyanine, phthalocyanine, quinone, or triphenol that absorbs in the infrared region. Is printed, a reflection is used at 600 to 670 nm using a sensor that can be detected correspondingly, and 850 to 95
An anti-counterfeit ink which is capable of discriminating authenticity while showing absorption at 0 nm.
【請求項2】紙質又はプラスチック質の素材に熱転写し
うるように請求項1に記載の赤外吸収を示す物質を熱転
写インキに配合し、プラスチックフィルムに塗布してな
ることを特徴とする偽造防止用サーマルリボン。
2. The anti-counterfeiting method according to claim 1, wherein the substance exhibiting infrared absorption according to claim 1 is mixed with a thermal transfer ink so as to be capable of thermal transfer to a paper or plastic material, and applied to a plastic film. For thermal ribbon.
JP22679299A 1999-07-05 1999-07-05 Ink for forgery prevention and thermal ribbon Pending JP2001019887A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP22679299A JP2001019887A (en) 1999-07-05 1999-07-05 Ink for forgery prevention and thermal ribbon

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP22679299A JP2001019887A (en) 1999-07-05 1999-07-05 Ink for forgery prevention and thermal ribbon

Publications (1)

Publication Number Publication Date
JP2001019887A true JP2001019887A (en) 2001-01-23

Family

ID=16850699

Family Applications (1)

Application Number Title Priority Date Filing Date
JP22679299A Pending JP2001019887A (en) 1999-07-05 1999-07-05 Ink for forgery prevention and thermal ribbon

Country Status (1)

Country Link
JP (1) JP2001019887A (en)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448998B1 (en) * 2001-12-31 2004-09-16 주식회사 대원 에스씨엔 Thin film used for photo transfer printer with dye sublimation ribbon, preparing method thereof, and security film using the same
JP2006500447A (en) * 2002-09-24 2006-01-05 シクパ・ホールディング・ソシエテ・アノニム Method and ink set for marking and authenticating goods
KR100618158B1 (en) 2004-05-07 2006-08-29 한국조폐공사 A manufacturing method of thermal transfer receiving sheet for preventing forgery
CN103042850A (en) * 2011-10-14 2013-04-17 杨丽娟 Anti-counterfeiting file and manufacture method thereof
JP2013196165A (en) * 2012-03-16 2013-09-30 Toppan Printing Co Ltd Identification medium and ink for identification
CN110157237A (en) * 2019-05-23 2019-08-23 广东可得智能科技有限公司 A kind of colour band colorant mix proportion scheme that tinctorial property is good
CN110218485A (en) * 2019-07-25 2019-09-10 李兴宇 A kind of infrared absorption anti-forgery ink

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100448998B1 (en) * 2001-12-31 2004-09-16 주식회사 대원 에스씨엔 Thin film used for photo transfer printer with dye sublimation ribbon, preparing method thereof, and security film using the same
JP2006500447A (en) * 2002-09-24 2006-01-05 シクパ・ホールディング・ソシエテ・アノニム Method and ink set for marking and authenticating goods
JP2010235947A (en) * 2002-09-24 2010-10-21 Sicpa Holding Sa Method and ink set for marking and authenticating article
US7892338B2 (en) 2002-09-24 2011-02-22 Sicpa Holding S.A. Method and ink sets for marking and authenticating articles
KR101038035B1 (en) 2002-09-24 2011-05-31 시크파 홀딩 에스.에이. Method and ink sets for marking and authenticating articles
US8159657B2 (en) 2002-09-24 2012-04-17 Sicpa Holding Sa Method and ink sets for marking and authenticating articles
KR100618158B1 (en) 2004-05-07 2006-08-29 한국조폐공사 A manufacturing method of thermal transfer receiving sheet for preventing forgery
CN103042850A (en) * 2011-10-14 2013-04-17 杨丽娟 Anti-counterfeiting file and manufacture method thereof
JP2013196165A (en) * 2012-03-16 2013-09-30 Toppan Printing Co Ltd Identification medium and ink for identification
CN110157237A (en) * 2019-05-23 2019-08-23 广东可得智能科技有限公司 A kind of colour band colorant mix proportion scheme that tinctorial property is good
CN110218485A (en) * 2019-07-25 2019-09-10 李兴宇 A kind of infrared absorption anti-forgery ink

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