JP2002249692A - Fluorescent ink and sheet having fluorescent ink layer using the same - Google Patents
Fluorescent ink and sheet having fluorescent ink layer using the sameInfo
- Publication number
- JP2002249692A JP2002249692A JP2001051171A JP2001051171A JP2002249692A JP 2002249692 A JP2002249692 A JP 2002249692A JP 2001051171 A JP2001051171 A JP 2001051171A JP 2001051171 A JP2001051171 A JP 2001051171A JP 2002249692 A JP2002249692 A JP 2002249692A
- Authority
- JP
- Japan
- Prior art keywords
- fluorescent ink
- fluorescent
- sheet
- printing
- present
- 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
Links
Abstract
Description
【０００１】[0001]
【発明の属する技術分野】本発明は、隠蔽（秘匿）情報
を安全に保護できるとともに、偽造防止効果、改竄防止
効果も高い領収書、有価証券などのシートを形成できる
蛍光インクおよびそれを用いた蛍光インク層を有したシ
ートに関するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluorescent ink capable of forming a sheet such as a receipt or a security having a high anti-counterfeiting effect and a high anti-falsification effect, while protecting concealed (confidential) information safely. The present invention relates to a sheet having a fluorescent ink layer.
【０００２】[0002]
【従来の技術】従来、複写構成を有する領収書、有価証
券などへの不正行為防止方策として、例えば、図３
（イ）〜（ロ）に示すような混色スポットインキを用い
たものや、図４（イ）〜（ロ）に示すような転写クレー
インキを用いたものが知られている。2. Description of the Related Art Conventionally, as a measure for preventing fraudulent acts on receipts, securities and the like having a copy structure, for example, FIG.
There are known ones using mixed color spot inks as shown in (a) to (b) and those using transfer clay inks as shown in FIGS. 4 (a) to (b).
【０００３】図３（イ）に示すように混色スポットイン
キ（赤又は緑）を塗布した層をノーカーボン上紙又は中
紙（１Ｐ）の裏面に設け、ノーカーボン中紙又は下紙
（２Ｐ）と正しく組み合わせて一端を綴じて作られた複
写フォームに記入されると、部分的に紫色又は青緑色に
発色する。しかし（ロ）に示すように１Ｐ目を別の一般
にあるノーカーボン用紙に取り替えて１Ｐ目と２Ｐ目に
違う内容を記入する不正行為（誤った組み合わせで記
入）を行うと、２Ｐ目の発色が全て青発色となり、不正
行為があったことが判るようになっている。As shown in FIG. 3 (a), a layer coated with mixed color spot ink (red or green) is provided on the back surface of carbonless top paper or middle paper (1P), and carbonless middle paper or bottom paper (2P). When a copy form is formed by binding one end in combination with the right color, the color is partially purple or blue-green. However, as shown in (b), if the first page is replaced with another general non-carbon paper and the wrong action is entered (the wrong combination is entered) to enter different contents in the first and second pages, the color of the second page will be changed. All became blue, indicating that there was fraud.
【０００４】転写クレーインキを用いるものは、図４
（イ）に示すように転写させたい受容用パーツ（ノーカ
ーボン中紙又は下紙）の上に樹脂凸版によるドライオフ
セット印刷で転写クレーインキを印刷してあるので、
（ロ）に示すように記入されると、転写クレーインキが
転写用パーツ（ノーカーボン上紙又は中紙）の裏面に転
移（裏写り）します。しかし、不正行為（誤った組み合
わせで記入）を行うと、転写用パーツの裏面に発色が転
写しないため、不正行為の有無が判るようになってい
る。FIG. 4 shows an example using a transfer clay ink.
As shown in (a), the transfer clay ink is printed by dry offset printing using resin letterpress on the receiving part (carbonless middle paper or base paper) to be transferred.
When filled in as shown in (b), the transfer clay ink transfers (shows off) to the back side of the transfer part (carbonless paper or middle paper). However, if a fraudulent act (filled in with an incorrect combination) is performed, the coloring is not transferred to the back surface of the transfer part, so that the presence or absence of the fraudulent act can be recognized.
【０００５】しかし、これらの方法は一旦発色すると、
その後は目視可能であるとういう欠点がある。コピーを
とると隠された文字がでてくるヒドンワード（隠し文
字）、印刷により疑似的な透かし効果がでる透かし印
刷、紫外線を当てると隠された文字が見える蛍光発色イ
ンキ、微細な文字でできた罫線（セキュリティーライ
ン）、あるいはトナーが剥がれないようにしたり、擦っ
てもとれないようにしたトナー定着性向上インキなどを
用いる方法も使われているが、これらの方法は改竄防止
には効果がない。[0005] However, these methods, once developed,
After that, there is a disadvantage that it is visible. Hidden words (hidden characters) where hidden characters appear when copied, watermark printing that produces a pseudo-watermarking effect by printing, fluorescent ink that allows you to see hidden characters when exposed to ultraviolet light, and fine characters A method using a ruled line (security line) or an ink for improving the toner fixing property which prevents the toner from peeling or rubbing is also used, but these methods are not effective in preventing tampering. .
【０００６】そこで、紫外線によって発光する蛍光物質
を含み、一般光の下では無色の蛍光インク（ヒドンイン
ク）を使用し、図５に示すように転写シートの裏面に剥
離インク層を設けた上に蛍光インク層を設け、受容シー
トにエンボス加工を施しブロック印刷を行ったものを組
み合わせて１端を綴じたタイプのものが提案されてい
る。そして転写シートの上方から記入すると、転写シー
トの蛍光インクが受容シートに転写し、この転写した潜
像にＵＶランプ（俗にいうブラックライト）をもって紫
外線を照射すると、蛍光物質が発光して文字などを読ん
だり見たりできるようになっている。例えば、カード申
し込み書などの暗証番号記入欄などにこの方法を適用す
れば暗証番号を見ることができず、紫外線を照射すると
初めて明瞭に確認できるので、隠蔽（秘匿）情報を安全
に保護できるとともに、偽造防止効果、改竄防止効果も
高い。In view of this, a colorless fluorescent ink (hidden ink) containing a fluorescent substance which emits light by ultraviolet rays is used under ordinary light, and a release ink layer is provided on the back surface of the transfer sheet as shown in FIG. There has been proposed a type in which an ink layer is provided, a receiving sheet is embossed, and block printing is performed, and one end is bound. Then, when filling in from above the transfer sheet, the fluorescent ink on the transfer sheet is transferred to the receiving sheet, and when this transferred latent image is irradiated with ultraviolet light using a UV lamp (a so-called black light), the fluorescent substance emits light and characters, etc. You can read and watch. For example, if this method is applied to a password entry field of a card application or the like, the password cannot be seen, and can be clearly checked only by irradiating ultraviolet rays, so that concealed (confidential) information can be safely protected. It also has a high anti-counterfeiting and tampering prevention effect.
【０００７】[0007]
【発明が解決しようとする課題】しかし、従来の蛍光イ
ンクの内、ワックスタイプのものは基材上にホットスポ
ットにより蛍光インク層を設けるため生産性が悪い（生
産スピードが遅い）問題があり、紫外線硬化型（ＵＶ硬
化型）のものは印刷法により蛍光インク層を設けること
ができるため生産性には優れているが、時間が経過する
につれて転写シートの蛍光インクが受容シートに転写し
にくくなる問題があった。そこで、本発明の第１の目的
は、印刷法により蛍光インク層を設けることができるた
め生産性に優れる上、前記蛍光インクの前記受容シート
への転写性に優れ、時間が経過しても良好に転写できる
蛍光インクを提供することであり、本発明の第２の目的
は、この蛍光インクを用いて形成された蛍光インク層を
有してなる新規なシートを提供することである。However, among the conventional fluorescent inks, the wax type one has a problem that the productivity is poor (the production speed is low) because the fluorescent ink layer is provided on the substrate by hot spots. The ultraviolet curable type (UV curable type) is excellent in productivity because the fluorescent ink layer can be provided by a printing method, but it becomes difficult for the fluorescent ink of the transfer sheet to be transferred to the receiving sheet over time. There was a problem. Therefore, a first object of the present invention is to provide a fluorescent ink layer by a printing method, which is excellent in productivity and excellent in transferability of the fluorescent ink to the receiving sheet, and is good even after a lapse of time. A second object of the present invention is to provide a novel sheet having a fluorescent ink layer formed using the fluorescent ink.
【０００８】[0008]
【課題を解決するための手段】本発明者等は前記課題を
解決すべく鋭意研究を重ねた結果、特定の溶剤を含むビ
ヒクルに対して多孔質微粒子および蛍光物質を配合した
蛍光インクを用いることにより、解決できることを見出
し、本発明を完成するに至った。Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above-mentioned problems, and as a result, have found that using a fluorescent ink mixed with a porous fine particle and a fluorescent substance in a vehicle containing a specific solvent. As a result, the inventors have found that the present invention can solve the problem, and have completed the present invention.
【０００９】すなわち、本発明の請求項１記載の蛍光イ
ンクは、沸点１００℃以上のグリコール系溶剤を含むビ
ヒクルに対して、多孔質微粒子および蛍光物質を配合し
たことを特徴とする。That is, the fluorescent ink according to the first aspect of the present invention is characterized in that porous fine particles and a fluorescent substance are blended with a vehicle containing a glycol solvent having a boiling point of 100 ° C. or higher.
【００１０】本発明の請求項２記載の蛍光インクは、請
求項１記載の蛍光インクにおいて、ビヒクル１００質量
部に対して蛍光物質０．１〜５質量部配合したことを特
徴とする。The fluorescent ink according to claim 2 of the present invention is characterized in that, in the fluorescent ink according to claim 1, 0.1 to 5 parts by mass of a fluorescent substance is added to 100 parts by mass of the vehicle.
【００１１】本発明の請求項３記載の蛍光インクは、請
求項１あるいは請求項２記載の蛍光インクにおいて、ビ
ヒクル１００質量部に対して多孔質微粒子１０〜５０質
量部配合したことを特徴とする。According to a third aspect of the present invention, there is provided the fluorescent ink according to the first or second aspect, wherein 10 to 50 parts by mass of porous fine particles are blended with respect to 100 parts by mass of the vehicle. .
【００１２】本発明の請求項４は、請求項１から請求項
３のいずれかに記載の蛍光インクにおいて、基材の少な
くとも表面の所定部に請求項１から請求項３のいずれか
に記載の蛍光インクを用いて形成された蛍光インク層を
有してなることを特徴とするシートである。According to a fourth aspect of the present invention, in the fluorescent ink according to any one of the first to third aspects, the fluorescent ink according to any one of the first to third aspects is provided on at least a predetermined portion of the surface of the substrate. A sheet comprising a fluorescent ink layer formed using fluorescent ink.
【００１３】本発明の蛍光インクは、印刷インキ適性に
優れており、オフセット印刷などにより、基材（例えば
前記転写シート）の必要な箇所に部分的な印刷やスポッ
ト印刷を行って、蛍光インク層を容易に設けることがで
きる。本発明の蛍光インクを用いて基材（例えば前記転
写シート）の必要な箇所に形成された蛍光インク層は転
写性に優れており、時間が経過しても蛍光インクが容易
に転写するので、例えば、カード申し込み書などの暗証
番号記入欄などにこの方法を適用すれば暗証番号を見る
ことができず、紫外線を照射すると初めて明瞭に確認で
きるので、隠蔽（秘匿）情報を安全に保護できるととも
に、偽造防止効果、改竄防止効果も高い。The fluorescent ink of the present invention is excellent in printing ink suitability, and performs partial printing or spot printing on a required portion of a base material (for example, the transfer sheet) by offset printing or the like to form a fluorescent ink layer. Can be easily provided. The fluorescent ink layer formed at a necessary portion of the substrate (for example, the transfer sheet) using the fluorescent ink of the present invention has excellent transferability, and the fluorescent ink is easily transferred even after a lapse of time. For example, if this method is applied to a password entry field of a card application or the like, the password cannot be seen, and can be clearly checked only by irradiating ultraviolet rays. It also has a high anti-counterfeiting and tampering prevention effect.
【００１４】[0014]
【発明の実施の形態】図１は、本発明の蛍光インクを用
いて基材の下面の所定部に形成された蛍光インク層を有
してなる本発明の蛍光インク層を有したシートの一実施
形態を説明する説明図である。図２（イ）、（ロ）は、
図１に示した本発明の蛍光インク層を有したシートと受
容シートとを組み合わせて一端を綴じた複写帳票組を説
明する説明図である。DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a sheet having a fluorescent ink layer of the present invention, which has a fluorescent ink layer formed on a predetermined portion of the lower surface of a substrate using the fluorescent ink of the present invention. FIG. 3 is an explanatory diagram illustrating an embodiment. 2 (a) and (b)
FIG. 2 is an explanatory diagram illustrating a copy form set in which one end is bound by combining the sheet having the fluorescent ink layer of the present invention illustrated in FIG. 1 and a receiving sheet.
【００１５】図１に示すように、本発明の蛍光インク層
を有したシート１は、基材２の下面の所定部に本発明の
蛍光インクを用いて印刷して蛍光インク層３が形成され
ている。As shown in FIG. 1, a sheet 1 having a fluorescent ink layer of the present invention has a fluorescent ink layer 3 formed by printing on a predetermined portion of the lower surface of a substrate 2 using the fluorescent ink of the present invention. ing.
【００１６】図２（イ）に示すのは、本発明の蛍光イン
ク層を有したシート１を、エンボス加工を施した受容シ
ート４と組み合わせて１端を綴じた複写帳票組（例えば
貯蓄預金キャッシュカード暗証番号登録票）５である。FIG. 2 (a) shows a copy form set (for example, a savings deposit cache) in which the sheet 1 having the fluorescent ink layer of the present invention is combined with an embossed receiving sheet 4 and bound at one end. Card personal identification number registration slip) 5.
【００１７】そして本発明のシート１の上方から暗証番
号を記入すると、シート１の対応する蛍光インク３Ａが
受容シートに容易に転写する。この転写は複写帳票組５
を作ってから時間が経過しても容易に良好に起こる。そ
してこの転写した潜像３ＡにＵＶランプ（ブラックライ
ト）をもって紫外線を照射すると蛍光物質が発光して暗
証番号を読んだり見たりできる。When a password is entered from above the sheet 1 of the present invention, the corresponding fluorescent ink 3A of the sheet 1 is easily transferred to the receiving sheet. This transfer is copy form set 5
It occurs easily and easily even after a long time from the production. When the transferred latent image 3A is irradiated with ultraviolet light by a UV lamp (black light), the fluorescent substance emits light so that the password can be read or viewed.
【００１８】本発明で用いる沸点１００℃以上のグリコ
ール系溶剤を含むビヒクルは、印刷インキ適性に優れる
上、多孔質微粒子および蛍光物質を蛍光インク層にバイ
ンドして保持、維持できるものである。The vehicle containing a glycol-based solvent having a boiling point of 100 ° C. or higher used in the present invention has excellent suitability for printing ink and can hold and maintain porous fine particles and a fluorescent substance bound to a fluorescent ink layer.
【００１９】本発明で用いるグリコール系溶剤は、水と
混合可能な中沸点および高沸点溶剤（沸点が１００℃以
上のもの）であり、具体的には、例えばグリコール（グ
リセリン、エチレングリコール、ジエチレングリコー
ル、トリエチレングリコール、ポリエチレングリコー
ル、プロピレングリコール、ジプロピレングリコール）
やグリコール誘導体（エチレングリコールモノメチルエ
ーテル、エチレングリコールモノエチルエーテル、エチ
レングリコールモノブチルエーテル、ジエチレングリコ
ールモノエチルエーテル、ジエチレングリコールモノブ
チルエーテル、エチレングリコールモノエチルエーテル
アセテート、エチレングリコールモノブチルエーテルア
セテート、ジエチレングリコールモノエチルエーテルア
セテート、ジエチレングリコールモノブチルエーテルア
セテート）など、およびこれらの２つ以上の混合物を挙
げることができる。The glycol solvent used in the present invention is a medium- and high-boiling solvent (having a boiling point of 100 ° C. or higher) which can be mixed with water. Specifically, for example, glycol (glycerin, ethylene glycol, diethylene glycol, Triethylene glycol, polyethylene glycol, propylene glycol, dipropylene glycol)
And glycol derivatives (ethylene glycol monomethyl ether, ethylene glycol monoethyl ether, ethylene glycol monobutyl ether, diethylene glycol monoethyl ether, diethylene glycol monobutyl ether, ethylene glycol monoethyl ether acetate, ethylene glycol monobutyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol monoethyl acetate Butyl ether acetate), and mixtures of two or more of these.
【００２０】本発明で用いる多孔質微粒子は無機系多孔
質微粒子でも、有機系多孔質微粒子でも、あるいは両者
の混合物でもよく、特に限定されるものではない。中で
も無機系多孔質微粒子は好ましく使用できる。The porous fine particles used in the present invention may be inorganic porous fine particles, organic porous fine particles, or a mixture of both, and are not particularly limited. Among them, inorganic porous fine particles can be preferably used.
【００２１】無機系多孔質微粒子の具体例としては、例
えば、シリカ微粒子では、ミズカシルＰ−５２６、Ｐ−
８０１、Ｐ−５２７、Ｐ−６０３、Ｐ８３２、Ｐ−７
３、Ｐ−７８Ａ、Ｐ−７８Ｆ、Ｐ−８７、Ｐ−７０５、
Ｐ−７０７、Ｐ−７０７Ｄ（水沢化学社製）、Ｎｉｐｓ
ｉｌ Ｅ２００、Ｅ２２０、ＳＳ−１０Ｆ、ＳＳ−１
５、ＳＳ−５０（日本シリカ工業社製）、ＳＹＬＹＳＩ
Ａ７３０、３１０（富士シリシア化学社製）など、炭酸
カルシウム微粒子では、Ｂｒｉｌｌｉａｎｔ−１５、Ｂ
ｒｉｌｌｉａｎｔ−Ｓ１５、Ｕｎｉｂｕｒ−７０、Ｐ
Ｚ、ＰＸ、ツネックスＥ、Ｖｉｇｏｔ−１０、Ｖｉｇｏ
ｔｏ−１５、Ｕｎｉｆａｎｔ−１５ＦＲ、Ｂｒｉｌｌｉ
ａｎｔ−１５００、ホモカルＤ、ゲルトン５０（白石工
業社製）などを、スルホ・アルミン酸カルシウム微粒子
では、サチンホワイトＳＷ、ＳＷ−Ｂ、ＳＷ−ＢＬ
（（白石工業社製）などを、アルミナ微粒子では、ＡＬ
−４１Ｇ、ＡＬ−４１、ＡＬ−４２、ＡＬ−４３、ＡＬ
−４４、ＡＬ−４１Ｅ、ＡＬ−４２Ｅ、ＡＬ−Ｍ４１、
ＡＬ−Ｍ４２、ＡＬ−Ｍ４３、ＡＬ−Ｍ４４、ＡＬ−Ｓ
４３、ＡＭ−２１、ＡＭ−２２、ＡＭ−２５、ＡＭ−２
７（住友化学社製）、酸化アルミニウムＣ（日本アエロ
ジル社製）などを、二酸化チタン微粒子では二酸化チタ
ンＴ８０５、Ｐ２５（日本アエロジル社製）などを挙げ
ることができる。Specific examples of the inorganic porous fine particles include, for example, silica fine particles such as Mizukasil P-526 and P-526.
801, P-527, P-603, P832, P-7
3, P-78A, P-78F, P-87, P-705,
P-707, P-707D (manufactured by Mizusawa Chemical), Nips
il E200, E220, SS-10F, SS-1
5, SS-50 (manufactured by Nippon Silica Industry Co., Ltd.), SYLYSI
For fine particles of calcium carbonate such as A730, 310 (manufactured by Fuji Silysia Chemical Ltd.), Brilliant-15, B
illiant-S15, Unibur-70, P
Z, PX, Tunex E, Vigot-10, Vigo
to-15, Unifant-15FR, Brilli
ant-1500, Homocal D, Gerton 50 (manufactured by Shiraishi Industry Co., Ltd.), and the like.
(Made by Shiraishi Industries Co., Ltd.)
-41G, AL-41, AL-42, AL-43, AL
-44, AL-41E, AL-42E, AL-M41,
AL-M42, AL-M43, AL-M44, AL-S
43, AM-21, AM-22, AM-25, AM-2
7 (manufactured by Sumitomo Chemical Co., Ltd.), aluminum oxide C (manufactured by Nippon Aerosil Co., Ltd.), and titanium dioxide fine particles include titanium dioxide T805 and P25 (manufactured by Nippon Aerosil Co., Ltd.).
【００２２】有機系多孔質微粒子の具体例としては、例
えば、四フッ化エチレン樹脂（三井デュポンフルオロケ
ミカル社 テフロン３０Ｊ）、六フッ化ビニリデン樹脂
（ダイキン工業 ネオフロンＣＴＦＥ）、三フッ化塩化
エチレン樹脂（ダイキン工業ネオフロンＶＤＦ）、六フ
ッ化プロピレン樹脂（ダイキン工業 ネオフロンＦＥ
Ｐ）、フッ化エチレン−プロピレン共重合体樹脂（三井
デュポンフルオロケミカル社 テフロン１２０Ｊ）、各
種デンプン系微粒子、微粒状アクリル樹脂、微粒状メタ
クリル樹脂などが挙げられる。これらの多孔質微粒子は
単独で用いてもよいし、２種以上組み合わせて用いても
よい。Specific examples of the organic porous fine particles include, for example, ethylene tetrafluoride resin (Teflon 30J, manufactured by DuPont-Mitsui Fluorochemicals), vinylidene hexafluoride resin (Daikin Neoflon CTFE), ethylene trifluoride chloride resin ( Daikin Neoflon VDF), propylene hexafluoride resin (Daikin Neoflon FE)
P), a fluorinated ethylene-propylene copolymer resin (Teflon 120J, manufactured by DuPont-Mitsui Fluorochemicals Co., Ltd.), various types of starch-based fine particles, finely divided acrylic resin, finely divided methacrylic resin, and the like. These porous fine particles may be used alone or in combination of two or more.
【００２３】本発明で用いる多孔質微粒子の配合量は特
に限定されるものではないが、好ましくはビヒクル１０
０質量部に対して、多孔質微粒子を１０〜５０質量部、
より好ましくは２０〜４０質量部配合することが望まし
い。１０質量部未満では蛍光インクの転写性を改善でき
ない恐れがあり、５０質量部を超えると粘度が高くなり
印刷インク適性が低下する恐れがあるので、いずれも好
ましくない。The amount of the porous fine particles used in the present invention is not particularly limited, but is preferably 10
For 0 parts by mass, 10 to 50 parts by mass of the porous fine particles,
More preferably, it is desirable to mix 20 to 40 parts by mass. If the amount is less than 10 parts by mass, the transferability of the fluorescent ink may not be improved. If the amount is more than 50 parts by mass, the viscosity may be increased and the suitability for the printing ink may be reduced.
【００２４】本発明における蛍光インクの蛍光物質は、
蛍光インク（ヒドンインク）に一般的に用いられている
蛍光物質を使用することができる。蛍光物質の具体例と
しては、例えばスチルベン、４，４’−ジアミノスチル
ベン、ビフェニル、複素５員環（トリアゾール、オキサ
ゾール、イミダゾールなど）、複素６員環（クマリン、
ナフタルイミド、ｓ−トリアジンなど）の誘導体などの
蛍光増白剤（メーカー名；例えば昭和化学社、昭和化工
社、日曹社、化薬社、三井社、住友社、大東社、チバ
社、バイエル社など）を挙げることができる。In the present invention, the fluorescent substance of the fluorescent ink is
A fluorescent substance generally used for a fluorescent ink (hidden ink) can be used. Specific examples of the fluorescent substance include, for example, stilbene, 4,4′-diaminostilbene, biphenyl, a 5-membered heterocyclic ring (such as triazole, oxazole and imidazole), and a 6-membered heterocyclic ring (coumarin,
Fluorescent whitening agents such as derivatives of naphthalimide, s-triazine, etc. (manufacturer names; for example, Showa Chemical Co., Showa Kakosha, Nisso, Kayaku, Mitsui, Sumitomo, Daitosha, Ciba, Bayer) Company).
【００２５】本発明で用いる蛍光物質の配合量は特に限
定されるものではないが、好ましくはビヒクル１００質
量部に対して、蛍光物質を０．１〜５質量部、より好ま
しくは０．２〜４質量部配合することが望ましい。０．
１質量部未満では蛍光量が少なく発光を確認できない恐
れがあり、５質量部を超えても蛍光量が増えず不経済と
なる。The amount of the fluorescent substance used in the present invention is not particularly limited, but is preferably 0.1 to 5 parts by weight, more preferably 0.2 to 5 parts by weight, based on 100 parts by weight of the vehicle. It is desirable to mix 4 parts by mass. 0.
When the amount is less than 1 part by mass, the amount of fluorescent light is so small that light emission may not be confirmed.
【００２６】本発明の蛍光インクには、さらに、所望に
応じて慣用されている添加成分、例えば、反応性希釈
剤、粘着付与剤、粘度調整剤、酸化防止剤、ｐＨ調節
剤、消泡剤、各種安定剤、着色剤、滑剤、増感剤、安定
剤などを含有させることもできる。The fluorescent ink of the present invention may further contain, if desired, commonly used additives such as a reactive diluent, a tackifier, a viscosity modifier, an antioxidant, a pH regulator and a defoamer. , Various stabilizers, coloring agents, lubricants, sensitizers, stabilizers, and the like.
【００２７】本発明の蛍光インクは、凸版印刷、グラビ
ア印刷法などの凹版印刷、オフセット方式などの平板印
刷、スクリーン印刷およびインクジェット方式その他の
通常用いられる印刷方法で基材の少なくとも表面の所定
部に塗工し、必要に応じて乾燥して、蛍光インク層を形
成することができる。The fluorescent ink of the present invention can be applied to at least a predetermined portion of at least the surface of a substrate by letterpress printing, intaglio printing such as gravure printing, flat printing such as offset printing, screen printing, ink jet printing and other commonly used printing methods. It can be applied and dried if necessary to form a fluorescent ink layer.
【００２８】本発明で用いる基材としては、上質紙、ア
ート紙、コート紙、ミラーコート紙、コンデンサー紙、
パラフィン紙、その他の紙の他に、それにオーバーコー
ト層（保護層）をもつ用紙やフィルムなどの他に、合成
紙、あるいはポリエチレン、透明性を有するポリエチレ
ンテレフタレート、ポリプロピレン、塩化ビニルなどの
合成フィルムを用いることもできる。これらの合成フィ
ルムを用いる場合には基材の表面をマット処理、コロナ
処理などの表面処理を施すのが好ましい。また基材面へ
の塗工量は、特に限定されないが、例えば１〜３０ｇ／
ｍ2 、好ましくは３〜２０ｇ／ｍ2 、さらに好ましくは
５〜１５ｇ／ｍ2 とする。As the base material used in the present invention, high quality paper, art paper, coated paper, mirror coated paper, condenser paper,
In addition to paraffin paper and other paper, paper and films with an overcoat layer (protective layer), as well as synthetic paper or synthetic films of polyethylene, transparent polyethylene terephthalate, polypropylene, vinyl chloride, etc. It can also be used. When using these synthetic films, the surface of the substrate is preferably subjected to a surface treatment such as a mat treatment or a corona treatment. The amount of coating on the substrate surface is not particularly limited, but is, for example, 1 to 30 g /
m 2 , preferably 3 to 20 g / m 2 , more preferably 5 to 15 g / m 2 .
【００２９】なお、本発明は上記実施形態に限定される
ものではないので、特許請求の範囲に記載の趣旨から逸
脱しない範囲で各種の変形実施が可能である。Since the present invention is not limited to the above embodiment, various modifications can be made without departing from the spirit of the present invention.
【００３０】[0030]
【実施例】以下実施例および比較例により本発明を更に
詳しく説明するが、本発明はこれら実施例に何ら制約さ
れるものではない。 （実施例１）グリセリン５質量部とジエチレングリコー
ル９５質量部を混合する。この混合液（ビヒクル）に多
孔質微粒子〈商品名：サイロスフェア１５０４（富士シ
リシア社製）〉３２．５質量部と蛍光物質〈商品名：Ｋ
ａｙａｐｈｏｒ Ｓ ｌｉｑｕｉｄ（日本化薬社製）〉
２．５質量部とを三本ロールミルを使用して混練して、
本発明の蛍光インクを調製した。次に、得られた本発明
の蛍光インクを用いて４０ｋｇ連量の複写用紙２上に樹
脂凸版を使用して１．８ｇ／ｍ2 になるように印刷し図
１に示す蛍光インク層３を有してなる本発明のシート１
を作った。The present invention will be described in more detail with reference to the following Examples and Comparative Examples, but the present invention is not limited to these Examples. (Example 1) 5 parts by mass of glycerin and 95 parts by mass of diethylene glycol are mixed. In this mixture (vehicle), 32.5 parts by mass of porous fine particles (trade name: Silosphere 1504 (manufactured by Fuji Silysia)) and a fluorescent substance (trade name: K)
Ayaphor S liquid (Nippon Kayaku Co., Ltd.)>
2.5 parts by mass and kneaded using a three-roll mill,
A fluorescent ink of the present invention was prepared. Next, using the obtained fluorescent ink of the present invention, a 40 kg ream copy paper 2 was printed using a resin relief printing plate to a density of 1.8 g / m 2 , and the fluorescent ink layer 3 shown in FIG. Sheet 1 of the present invention having
made.
【００３１】図２に示すように、本発明のシート１を、
別にエンボス加工を施した５５ｋｇ連量の上質紙４と重
ね合わせて１端を綴じた複写帳票組５を作った後、描画
試験機（荷重２５０ｋｇ）を用いて、蛍光インク層３の
転写テストを行った。そして転写された部分３Ａにブラ
ックライトを照射して転写された部分３Ａの蛍光発色を
確認した。テスト結果、転写された部分３Ａの蛍光発色
をはっきりと確認できた。経時変化をテストするため
に、本発明のシート１を５０℃オーブン中に１週間放置
後、同様のテストを行った結果、転写された部分３Ａの
蛍光発色が薄くなることがなく、蛍光発色をはっきりと
確認できた。As shown in FIG. 2, the sheet 1 of the present invention is
Separately, a copy form set 5 having one end bound is formed by superimposing it on a high-quality paper 4 having a continuous weight of 55 kg and subjected to a transfer test of the fluorescent ink layer 3 using a drawing tester (load: 250 kg). went. Then, the transferred portion 3A was irradiated with black light to confirm the fluorescence of the transferred portion 3A. As a result of the test, the fluorescence of the transferred portion 3A was clearly confirmed. In order to test the change over time, the sheet 1 of the present invention was left in an oven at 50 ° C. for one week, and the same test was carried out. It was clearly confirmed.
【００３２】（実施例２）実施例１で使用したビヒクル
を、エチレングリコール１５質量部とプロピレングリコ
ール８５質量部のビヒクルに替えた以外は実施例１と同
様にして転写テストおよび経時変化テストを行った結
果、実施例１と同様な良好な結果が得られた。(Example 2) A transfer test and a time-dependent change test were performed in the same manner as in Example 1 except that the vehicle used in Example 1 was changed to a vehicle having 15 parts by mass of ethylene glycol and 85 parts by mass of propylene glycol. As a result, the same good results as in Example 1 were obtained.
【００３３】（実施例３）実施例１で用いた多孔質微粒
子を沈降性炭酸カルシウム〈商品名：Ｂｒｉｌｌｉａｎ
ｔ−１５（白石工業社製）〉に替えた以外は実施例１と
同様にして転写テストおよび経時変化テストを行った結
果、実施例１と同様な良好な結果が得られた。Example 3 The porous fine particles used in Example 1 were precipitated calcium carbonate (trade name: Brillian)
t-15 (manufactured by Shiraishi Kogyo Co., Ltd.)>, a transfer test and a change over time test were performed in the same manner as in Example 1. As a result, the same good results as in Example 1 were obtained.
【００３４】（実施例４）実施例１で用いた蛍光物質を
〈商品名：Ｋａｙａｐｈｏｒ ＳＮ ｌｉｑｕｉｄ（日
本化薬社製）〉に替えた以外は実施例１と同様にして転
写テストおよび経時変化テストを行った結果、実施例１
と同様な良好な結果が得られた。Example 4 A transfer test and a time-dependent change test were performed in the same manner as in Example 1 except that the fluorescent substance used in Example 1 was changed to <Kayaphor SN liquid (manufactured by Nippon Kayaku)>. As a result of performing
The same good results as were obtained.
【００３５】（比較例１）実施例１で使用した本発明の
蛍光インクの替わりに、市販の蛍光インク〈商品名：Ｔ
ＯＫＡ ＢＰ−７（Ｔ＆Ｋ ＴＯＫＡ社製）〉を使用し
た以外は実施例１と同様にして転写テストおよび経時変
化テストを行った。転写テストの結果、実施例１と同様
な良好な結果が得られたが、経時変化テストの結果、転
写された部分３Ａの蛍光発色が明らかに薄くなった。Comparative Example 1 A commercially available fluorescent ink (trade name: T) was used instead of the fluorescent ink of the present invention used in Example 1.
A transfer test and a time-dependent change test were performed in the same manner as in Example 1 except that OKA BP-7 (manufactured by T & K TOKA)> was used. As a result of the transfer test, the same good results as in Example 1 were obtained, but as a result of the time-dependent change test, the fluorescent color of the transferred portion 3A was clearly reduced.
【００３６】[0036]
【発明の効果】本発明の請求項１記載の蛍光インクは、
沸点１００℃以上のグリコール系溶剤を含むビヒクルに
対して、多孔質微粒子および蛍光物質を配合したので、
印刷インキ適性に優れており、オフセット印刷などによ
り、基材の必要な箇所に部分的な印刷やスポット印刷を
行って、蛍光インク層を容易に設けることができる上、
時間が経過しても蛍光インク（ヒドンインク）が容易に
転写するので、例えば、カード申し込み書などの暗証番
号記入欄などにこの方法を適用すれば暗証番号を見るこ
とができず、紫外線を照射すると初めて明瞭に確認でき
るので、隠蔽（秘匿）情報を安全に保護できるととも
に、偽造防止効果、改竄防止効果も高いという顕著な効
果を奏する。The fluorescent ink according to claim 1 of the present invention is
Since a porous fine particle and a fluorescent substance were blended with a vehicle containing a glycol solvent having a boiling point of 100 ° C. or higher,
It is excellent in printing ink suitability, and it is possible to easily provide a fluorescent ink layer by performing partial printing or spot printing on required parts of the base material by offset printing etc.
Even if time passes, the fluorescent ink (hidden ink) is easily transferred, so if this method is applied to, for example, a password entry field of a card application form, etc., the password cannot be seen. Since it can be clearly checked for the first time, concealed (confidential) information can be safely protected, and a remarkable effect that a forgery prevention effect and a falsification prevention effect are also high is exhibited.
【００３７】本発明の請求項２記載の蛍光インクは、ビ
ヒクル１００質量部に対して蛍光物質０．１〜５質量部
配合したので、請求項１記載の蛍光インクと同様な効果
を奏するととともに、経済的で、紫外線を照射した時の
蛍光量が十分あり明瞭に確認できるのという顕著な効果
を奏する。The fluorescent ink according to the second aspect of the present invention contains 0.1 to 5 parts by weight of a fluorescent substance with respect to 100 parts by weight of the vehicle, so that the same effect as the fluorescent ink according to the first aspect can be obtained. It is economical and has a remarkable effect that the amount of fluorescence when irradiated with ultraviolet rays is sufficient and can be clearly confirmed.
【００３８】本発明の請求項３記載の蛍光インクは、ビ
ヒクル１００質量部に対して多孔質微粒子１０〜５０質
量部配合したので、請求項１記載の蛍光インクと同様な
効果を奏するととともに、印刷性を損なわずに効率よく
効果的に偽造防止効果、改竄防止効果が得られるという
顕著な効果を奏する。The fluorescent ink according to the third aspect of the present invention is blended with 10 to 50 parts by weight of the porous fine particles with respect to 100 parts by weight of the vehicle, so that the same effect as the fluorescent ink according to the first aspect can be obtained. A remarkable effect that the forgery prevention effect and the falsification prevention effect can be obtained efficiently and effectively without impairing printability is exhibited.
【００３９】本発明の請求項４記載のシートは、基材の
少なくとも表面の所定部に請求項１から請求項３のいず
れかに記載の蛍光インクを用いて形成された蛍光インク
層を有してなるので、構成が簡単で、安価な上、時間が
経過しても転写性が低下せず蛍光インクが容易に転写
し、例えば、転写した暗証番号を容易に見ることができ
ないが紫外線を照射すると初めて明瞭に確認できるの
で、隠蔽（秘匿）情報を安全に保護できるとともに、偽
造防止効果、改竄防止効果も高いという顕著な効果を奏
する。A sheet according to a fourth aspect of the present invention has a fluorescent ink layer formed by using the fluorescent ink according to any one of the first to third aspects on at least a predetermined portion of the surface of the substrate. Therefore, the structure is simple, inexpensive, and the transferability does not decrease over time, and the fluorescent ink is easily transferred. For example, the transferred personal identification number cannot be easily seen, but it is irradiated with ultraviolet rays. Then, since it can be clearly checked for the first time, concealed (confidential) information can be safely protected, and a remarkable effect that a forgery prevention effect and a falsification prevention effect are also high is exhibited.
【図１】本発明の蛍光インク層を有したシートの一実施
形態の概略的な断面説明図である。FIG. 1 is a schematic cross-sectional explanatory view of one embodiment of a sheet having a fluorescent ink layer of the present invention.
【図２】（イ）は図１に示した本発明の蛍光インク層を
有したシートに他の受容シートを重ね合わせて１端を綴
じてなる複写帳票組の説明図であり、（ロ）は暗証番号
などを記入して蛍光インクを受容シート上に転写した状
態説明図である。FIG. 2A is an explanatory diagram of a copy form set in which another receiving sheet is superimposed on the sheet having the fluorescent ink layer of the present invention shown in FIG. 1 and one end thereof is bound; FIG. 5 is an explanatory view showing a state where a password and the like are entered and the fluorescent ink is transferred onto a receiving sheet.
【図３】混色スポットインキを用いた従来の不正行為防
止用シートの例を示す説明図である。FIG. 3 is an explanatory view showing an example of a conventional cheating prevention sheet using mixed color spot ink.
【図４】転写クレーインキを用いた従来の不正行為防止
用シートの例を示す説明図である。FIG. 4 is an explanatory view showing an example of a conventional fraud-preventing sheet using a transfer clay ink.
【図５】蛍光インキ（ヒドンインク）を用いた従来の不
正行為防止用シートの例を示す説明図である。FIG. 5 is an explanatory view showing an example of a conventional cheating prevention sheet using a fluorescent ink (hidden ink).
１ 本発明の蛍光インク層を有したシート ２ 基材 ３ 蛍光インク層 ４ 受容シート ５ 複写帳票組 DESCRIPTION OF SYMBOLS 1 The sheet | seat which has the fluorescent ink layer of this invention 2 Base material 3 Fluorescent ink layer 4 Receiving sheet 5 Copy form set
───────────────────────────────────────────────────── フロントページの続き Ｆターム(参考） 2C005 HA02 HB10 JB14 KA01 KA40 LB16 2H113 AA03 BC00 CA32 CA35 CA39 DA07 DA15 DA42 DA57 4J039 BA13 BA16 BA21 BA32 BC09 GA13 ──────────────────────────────────────────────────続 き Continued on the front page F term (reference) 2C005 HA02 HB10 JB14 KA01 KA40 LB16 2H113 AA03 BC00 CA32 CA35 CA39 DA07 DA15 DA42 DA57 4J039 BA13 BA16 BA21 BA32 BC09 GA13
Claims (4)
含むビヒクルに対して、多孔質微粒子および蛍光物質を
配合したことを特徴とする蛍光インク。1. A fluorescent ink comprising a vehicle containing a glycol-based solvent having a boiling point of 100 ° C. or higher, and porous fine particles and a fluorescent substance mixed therein.
０．１〜５質量部配合したことを特徴とする請求項１記
載の蛍光インク。2. The fluorescent ink according to claim 1, wherein 0.1 to 5 parts by mass of a fluorescent substance is blended with respect to 100 parts by mass of the vehicle.
粒子１０〜５０質量部配合したことを特徴とする請求項
１あるいは請求項２記載の蛍光インク。3. The fluorescent ink according to claim 1, wherein 10 to 50 parts by mass of the porous fine particles are blended with respect to 100 parts by mass of the vehicle.
１から請求項３のいずれかに記載の蛍光インクを用いて
形成された蛍光インク層を有してなることを特徴とする
シート。4. A sheet comprising a fluorescent ink layer formed by using the fluorescent ink according to claim 1 on at least a predetermined portion of a surface of a substrate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051171A JP4780743B2 (en) | 2001-02-26 | 2001-02-26 | A copy form group in which a sheet having a fluorescent ink layer using fluorescent ink and a receiving sheet are combined and bound at one end |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2001051171A JP4780743B2 (en) | 2001-02-26 | 2001-02-26 | A copy form group in which a sheet having a fluorescent ink layer using fluorescent ink and a receiving sheet are combined and bound at one end |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JP2002249692A true JP2002249692A (en) | 2002-09-06 |
| JP4780743B2 JP4780743B2 (en) | 2011-09-28 |
Family
ID=18912011
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2001051171A Expired - Fee Related JP4780743B2 (en) | 2001-02-26 | 2001-02-26 | A copy form group in which a sheet having a fluorescent ink layer using fluorescent ink and a receiving sheet are combined and bound at one end |
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| Country | Link |
|---|---|
| JP (1) | JP4780743B2 (en) |
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- 2001-02-26 JP JP2001051171A patent/JP4780743B2/en not_active Expired - Fee Related
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0971732A (en) * | 1995-09-05 | 1997-03-18 | Jiroo Kooporeeto Plan:Kk | Colorant, and ink and toner containing the same |
| JPH0978013A (en) * | 1995-09-11 | 1997-03-25 | Dainippon Toryo Co Ltd | Fluorescent ink composition for jet printing |
| JPH09174996A (en) * | 1995-12-25 | 1997-07-08 | Dainippon Toryo Co Ltd | Fluorescent light emitting marking method |
| JPH11129621A (en) * | 1997-10-31 | 1999-05-18 | Toppan Forms Co Ltd | Forgery preventive thermographic sheet |
| JP2000303008A (en) * | 1999-04-20 | 2000-10-31 | Seiko Epson Corp | Fluorescent ink composition |
| JP2001040266A (en) * | 1999-07-30 | 2001-02-13 | Tombow Pencil Co Ltd | Water-base pigment ink composition for ball point pen |
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| Publication number | Publication date |
|---|---|
| JP4780743B2 (en) | 2011-09-28 |
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