JP2008015071A - Forgery preventing magnetic tape transferring sheet and card - Google Patents

Forgery preventing magnetic tape transferring sheet and card Download PDF

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JP2008015071A
JP2008015071A JP2006184187A JP2006184187A JP2008015071A JP 2008015071 A JP2008015071 A JP 2008015071A JP 2006184187 A JP2006184187 A JP 2006184187A JP 2006184187 A JP2006184187 A JP 2006184187A JP 2008015071 A JP2008015071 A JP 2008015071A
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layer
magnetic tape
transfer sheet
card
thin film
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Hideyoshi Ide
Naoaki Shindou
Kazuhiro Yashiki
英誉 井出
一尋 屋鋪
直彰 新藤
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Toppan Printing Co Ltd
凸版印刷株式会社
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<P>PROBLEM TO BE SOLVED: To provide a forgery preventing magnetic tape transferring sheet capable of preventing occurrence of sparks and preventing fire during manufacture and magnetic data damage at the time of magnetic reading or the like. <P>SOLUTION: The forgery preventing magnetic tape transferring sheet is composed of: a protection layer which can be exfoliated from the supporting body; a diffraction structure forming layer which is transparent and has minute rugged surface for producing diffracted light; a diffraction effect layer which is made of an optical thin film provided by being brought into close contact with ruggedness of the rugged surface and which reflects light passed through the diffraction structure forming layer; a magnetic recording layer which is provided by covering the diffraction effect layer; and an adhering layer which is provided by covering the magnetic recording layer, which are formed on a sheet-shaped substrate in this order from the substrate. In the forgery preventing magnetic tape transferring sheet, the diffraction effect layer is made of a metallic thin film and marine island structure where the metallic thin film partially exists is formed. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

本発明は、偽造防止を必要とする各種情報表示媒体に関し、詳しくはキャッシュカードやクレジットカード等の磁気カードを製造する際の部品となる、偽造防止磁気テープ転写シート、及び該偽造防止磁気テープ転写シートを転写貼付した磁気カードに関するものである。   The present invention relates to various information display media that require anti-counterfeiting, and in particular, a forgery-preventing magnetic tape transfer sheet that is a component when manufacturing a magnetic card such as a cash card or a credit card, and the anti-counterfeit magnetic tape transfer The present invention relates to a magnetic card to which a sheet is transferred and pasted.
近年、偽造防止手段として光の干渉を用いて立体画像や特殊な装飾画像を表現し得る、ホログラムや回折格子、光学特性の異なる薄膜を重ねることにより、見る角度により色の変化(カラーシフト)を生じる多層薄膜のようなOVD[OVDは、”Optical(ly) Variable Device”の略。尚、OVDの同義語にDOVIDもあり、”Diffractive Optical(ly) Variable Imaging Device”の略である。]が利用されるようになってきている。これらOVDは高度な製造技術を要すること、独特な視覚効果を有し、一瞥で真偽が判定できることから有効な偽造防止手段としてクレジットカード、有価証券、証明書類等の一部にあるいは全面に形成され使用されている。最近では、有価証券以外にもスポーツ用品やコンピュータ部品をはじめとする電気製品ソフトウエアー等に貼り付けられ、その製品の真正さを証明する認証シールや、それら商品のパッケージに貼りつけられる封印シールとしても広く使われるようになってきた。   In recent years, as a means to prevent counterfeiting, light interference can be used to express stereoscopic images and special decorative images. By superimposing holograms, diffraction gratings, and thin films with different optical properties, color changes (color shifts) can be achieved depending on the viewing angle. OVD [OVD is an abbreviation of “Optical (ly) Variable Device” such as a multilayer thin film. Note that DOVID is also a synonym for OVD, and is an abbreviation for “Differential Optical (ly) Variable Imaging Device”. ] Has come to be used. These OVDs require advanced manufacturing technology, have a unique visual effect, and can be judged at a glance as authenticity, so they can be formed on credit cards, securities, certificates, etc. as part of or on the entire surface as an effective counterfeit measure. Is being used. Recently, in addition to securities, it is affixed to sports equipment, computer parts and other electrical product software, etc., as an authentication sticker that proves the authenticity of the product, and as a seal sticker that is affixed to the package of those products Has also become widely used.
一方、キャッシュカード、及びクレジットカード等では、特許文献1のような、磁気層とホログラムを一体化する事で、カードデザイン上有利であり、しかも機械情報処理を行なえる磁気カードが知られており、また、これらカードの製造方法は、主にホログラム入磁気転写シートをカード基材へ転写接着させる方法が公知である。   On the other hand, for cash cards, credit cards, etc., there is known a magnetic card that is advantageous in card design by integrating a magnetic layer and a hologram as in Patent Document 1, and that can perform mechanical information processing. In addition, as a method for producing these cards, a method of mainly transferring and adhering a hologram-containing magnetic transfer sheet to a card substrate is known.
従来技術は以下の通り。
特開平6−167920号公報
The prior art is as follows.
JP-A-6-167920
しかし、これらカードの製造時の加工機において、カード基材上に帯電した静電気が、金属蒸着薄膜から成る回折効果層の端部から、加工機の導電部等へスパークする現象がしばしば見られ、火災等の原因となり大変危険である。   However, in the processing machines at the time of manufacturing these cards, there is often a phenomenon in which static electricity charged on the card base material is sparked from the end of the diffraction effect layer made of a metal-deposited thin film to the conductive part of the processing machine, It may cause a fire and is very dangerous.
又、製品がキャッシュディスペンサー等で使用される際に、カードと磁気読み取りヘッドの摩擦でカードの表面に帯電した静電気が、カード端部の金属蒸着薄膜から成る回折効果層の端部から、磁気読み取りヘッドに向かってスパークする現象がしばしば見られ、スパークにより磁気データが損傷する不具合が知られている。   In addition, when the product is used in a cash dispenser or the like, static electricity charged on the card surface due to friction between the card and the magnetic reading head is magnetically read from the end of the diffraction effect layer made of a metal-deposited thin film at the end of the card. The phenomenon of sparking toward the head is often seen, and it is known that the magnetic data is damaged by the spark.
本発明は前記従来の技術が抱える問題点に鑑み提案されたものであり、ホログラムの金属蒸着薄膜から成る回折効果層を海島状の金属蒸着で構成、又は、金属粉を含むインキの塗膜で構成する事で、スパーク発生を防止し、製造上の火災、及び磁気読み取り時等の磁気データ損傷を防止する事を目的とする。   The present invention has been proposed in view of the problems of the prior art described above. The diffraction effect layer formed of a metal vapor-deposited thin film of a hologram is configured by sea-island metal vapor deposition, or an ink coating containing metal powder. By configuring, the purpose is to prevent the occurrence of sparks, and prevent damage to magnetic data such as fire in manufacturing and magnetic reading.
前記課題を解決するために本発明が提供する手段を次に挙げる。   Means provided by the present invention in order to solve the above-mentioned problems will be described below.
請求項1に記載の発明は、シート状の支持体上に、該支持体に近い側から、少なくとも、該支持体から剥離が可能な保護層、回折光を発生させるための微小な凹凸面を有する透明な回折構造形成層、前記凹凸面の凹凸に密着して設けられた光学薄膜から成り、該回折構造形成層を透過してきた光を反射させる回折効果層、該回折効果層を被覆して設けてある磁気記録層、該磁気記録層を被覆して設けてある接着層、とを具備して構成される偽造防止磁気テープ転写シートであって、回折効果層が、金属薄膜であり、該金属薄膜が部分的に存在する、海島構造を形成している事を特徴とする、偽造防止磁気テープ転写シートを提供するものである。   According to the first aspect of the present invention, on the sheet-like support, at least from the side close to the support, at least a protective layer that can be peeled off from the support, and a minute uneven surface for generating diffracted light. A transparent diffractive structure forming layer, an optical thin film provided in close contact with the concavo-convex surface of the concavo-convex surface, a diffractive effect layer for reflecting light transmitted through the diffractive structure forming layer, and covering the diffractive effect layer An anti-counterfeit magnetic tape transfer sheet comprising a magnetic recording layer provided, and an adhesive layer provided so as to cover the magnetic recording layer, wherein the diffraction effect layer is a metal thin film, An anti-counterfeit magnetic tape transfer sheet characterized by forming a sea-island structure in which a metal thin film is partially present.
請求項2に記載の発明は、請求項1に記載の偽造防止磁気テープ転写シートであって、金属粉を有機高分子樹脂に分散して得られた高輝性光反射インキを印刷した回折効果層を有する、偽造防止磁気テープ転写シートを提供するものである。   The invention according to claim 2 is the anti-counterfeit magnetic tape transfer sheet according to claim 1, wherein a diffraction effect layer printed with high-brightness light reflecting ink obtained by dispersing metal powder in an organic polymer resin An anti-counterfeit magnetic tape transfer sheet is provided.
請求項3に記載の発明は、請求項2記載の金属粉の平均粒形が3μm以下である事を特徴とした、偽造防止磁気テープ転写シートを提供するものである。   A third aspect of the present invention provides a forgery-preventing magnetic tape transfer sheet characterized in that the average particle shape of the metal powder of the second aspect is 3 μm or less.
請求項4に記載の発明は、請求項1〜3何れか記載の偽造防止磁気テープ転写シートを転写貼付したカードを提供するものである。   The invention according to claim 4 provides a card to which the forgery-preventing magnetic tape transfer sheet according to any one of claims 1 to 3 is transferred and pasted.
本発明の偽造防止磁気テープ転写シートおよびカードは、回折効果を奏する金属薄膜が海島構造であるので、その金属薄膜により美麗なホログラムを有し、しかも機械的情報処理を行なうことができると同時に、金属薄膜が海島構造であるので静電気起因のスパーク発生を防止する事が出来、故に、カード製造時の火災、及び磁気読み取り時等の磁気データの損傷を防止することが出来る。   In the anti-counterfeit magnetic tape transfer sheet and card of the present invention, since the metal thin film having a diffraction effect has a sea-island structure, the metal thin film has a beautiful hologram and can perform mechanical information processing, Since the metal thin film has a sea-island structure, it is possible to prevent the occurrence of sparks due to static electricity. Therefore, it is possible to prevent damage during the manufacture of cards and damage to magnetic data during magnetic reading.
以下、本発明の偽造防止磁気テープ転写シート、及び偽造防止磁気テープ転写シートを貼付したカードの実施例を図面に基づいて詳細に説明する。図1は前記の偽造防止磁気テープ転写シートの断面を示すもので、図2は偽造防止磁気テープ転写シートをカードに転写貼付している図である。前記偽造防止磁気テープ転写シート(1)は転写シートとなっており、その層構成は、支持体(2)の片面に保護層(3)、回折構造形成層(4)、回折効果層(5)、磁気記録層(6)、接着層(7)を順次形成してなるものである。   Hereinafter, an example of a forgery-preventing magnetic tape transfer sheet of the present invention and a card having a forgery-preventing magnetic tape transfer sheet attached thereto will be described in detail with reference to the drawings. FIG. 1 shows a cross section of the forgery-preventing magnetic tape transfer sheet, and FIG. 2 shows the anti-counterfeit magnetic tape transfer sheet being transferred and pasted to a card. The anti-counterfeit magnetic tape transfer sheet (1) is a transfer sheet, and the layer structure thereof is a protective layer (3), a diffraction structure forming layer (4), a diffraction effect layer (5) on one side of the support (2). ), A magnetic recording layer (6), and an adhesive layer (7).
前記偽造防止磁気テープ転写シートに於ける支持体2としては厚みが安定しており、かつ耐熱性の高いポリエチレンテレフタレート樹脂フィルムを用いるのが一般的であるが、これに限るものではない。その他の材料としては、ポリエチレンナフタレート樹脂フィルム、ポリイミド樹脂フィルム等が耐熱性の高いフィルムとして知られており、同様の目的で使用することが可能である。また、他のフィルム、例えば、ポリエチレン、ポリプロピレン、耐熱塩化ビニル等の材料でも、塗液の塗工条件、さらに言えば乾燥条件が許せば使用可能である。   As the support 2 in the forgery-preventing magnetic tape transfer sheet, a polyethylene terephthalate resin film having a stable thickness and high heat resistance is generally used, but is not limited thereto. As other materials, polyethylene naphthalate resin films, polyimide resin films and the like are known as films having high heat resistance, and can be used for the same purpose. In addition, other films such as polyethylene, polypropylene, heat-resistant vinyl chloride and the like can be used as long as coating conditions for the coating liquid, more specifically, drying conditions permit.
前記偽造防止磁気テープ転写シートに於ける保護層3としてはポリメチルメタクリレート樹脂と他の熱可塑性樹脂、例えば塩化ビニル/酢酸ビニル共重合体もしくはニトロセルロース樹脂との混合物、又はポリメチルメタクリレート樹脂とポリエチレンワックスとの混合物等が挙げられ、又、酢酸セルロース樹脂と熱硬化性樹脂、例えばエポキシ樹脂、フェノール樹脂、熱硬化型アクリル樹脂もしくはメラミン樹脂との混合物が好ましい例として挙げられる。   As the protective layer 3 in the anti-counterfeit magnetic tape transfer sheet, a polymethyl methacrylate resin and another thermoplastic resin such as a mixture of vinyl chloride / vinyl acetate copolymer or nitrocellulose resin, or a polymethyl methacrylate resin and polyethylene are used. A mixture of wax and the like can be mentioned, and a mixture of cellulose acetate resin and thermosetting resin such as epoxy resin, phenol resin, thermosetting acrylic resin or melamine resin can be mentioned as a preferable example.
また、塗膜の帯電を防止する為に、公知の帯電防止剤を添加しても良い。   In order to prevent the coating film from being charged, a known antistatic agent may be added.
前記偽造防止磁気テープ転写シートに於いて、回折構造形成層4は、その表面に回折格子を構成する凹凸を付与し、この上に、かつ、この凹凸に沿って設けられる回折効果層4に凹凸を付与するものである。そして、回折効果層4の凹凸表面で反射された回折光は互いに干渉して構造色を有するに至る。一般に、この回折現象によって得られる構造色は、観察者の位置によって異なる色彩を有する。   In the forgery-preventing magnetic tape transfer sheet, the diffractive structure forming layer 4 imparts irregularities constituting the diffraction grating on the surface thereof, and the diffractive effect layer 4 provided thereon and along the irregularities has irregularities. Is given. And the diffracted light reflected by the uneven surface of the diffraction effect layer 4 interferes with each other and has a structural color. In general, the structural color obtained by this diffraction phenomenon has different colors depending on the position of the observer.
回折構造形成層4は、その表面にプレス版にて前記凹凸を成形することが可能であるという性能が要求され、その主となる材質は熱可塑性樹脂、熱硬化性樹脂、紫外線あるいは電子線硬化性樹脂のいずれであっても良い。   The diffractive structure forming layer 4 is required to have a performance capable of forming the unevenness on its surface with a press plate, and the main material is thermoplastic resin, thermosetting resin, ultraviolet ray or electron beam curing. Any of the functional resins may be used.
回折構造形成層4に使用可能な材料は、例えば、アクリル系樹脂、エポキシ系樹脂、セルロース系樹脂、ビニル系樹脂等の熱可塑性樹脂や、反応性水酸基を有するアクリルポリオールやポリエステルポリオール等にポリイソシアネートを架橋剤として添加、架橋したウレタン樹脂や、メラミン系樹脂、フェノール系樹脂等の熱硬化樹脂、エポキシ(メタ)アクリル、ウレタン(メタ)アクリレート等の紫外線あるいは電子線硬化樹脂を、単独もしくはこれらを複合して使用できる。また、前記以外のものであっても、前記凹凸を形成可能であれば適宜使用してよい。   Examples of materials that can be used for the diffractive structure forming layer 4 include polyisocyanates such as thermoplastic resins such as acrylic resins, epoxy resins, cellulose resins, and vinyl resins, acrylic polyols and polyester polyols having reactive hydroxyl groups, and the like. As a cross-linking agent, UV resins such as melamine resins and phenol resins, UV or electron beam curable resins such as epoxy (meth) acryl, urethane (meth) acrylate, etc. Can be used in combination. Moreover, even if it is a thing other than the above, as long as the said unevenness | corrugation can be formed, you may use it suitably.
一方、微細凹凸形状を構成する回折格子としては、可干渉な二光線を干渉させて得られる干渉縞を感光材料に感光させるホログラフィ技術が利用できる。このホログラフィ技術によって、例えば、上記構造色を制御して、奥行き感のある立体的画像を構成することが可能である。   On the other hand, as the diffraction grating constituting the fine concavo-convex shape, a holographic technique can be used in which an interference fringe obtained by causing interference of two coherent light beams is exposed to a photosensitive material. With this holographic technique, for example, the structural color can be controlled to form a stereoscopic image with a sense of depth.
また、微小な画素毎にホログラフィ技術を適用して回折格子を形成し、これら回折格子を有する画素を多数配列して画面全体を構成することにより、高い輝感とコントラストを有する画像を表現することも可能である。なお、ホログラフィ技術に限らず、電子線により感光材料に回折格子を直接描画することにより、回折格子を有する前記画素を設けることも可能である。   In addition, a holographic technique is applied to each minute pixel to form a diffraction grating, and a large number of pixels having these diffraction gratings are arranged to form the entire screen, thereby expressing an image having high brightness and contrast. Is also possible. The pixel having the diffraction grating can be provided by directly drawing the diffraction grating on the photosensitive material with an electron beam, not limited to the holography technique.
なお、回折格子を有する画素をそれぞれ適当な形状(例えば、星型、等)で形成する手法や、これら画素で肉眼では見えない細かな文字(いわゆるマイクロ文字)を形成する手法、回折格子を使用していながらあたかも写真のように被写体の色彩を忠実に再現する手法、あるいは、回折格子を使用して、見る角度によって全く違う複数の画像を表現する手法等が開発されており、これら手法を利用することもできる。また、塗膜の帯電を防止する為に、公知の帯電防止剤を添加しても良い。   In addition, a method for forming each pixel having a diffraction grating in an appropriate shape (for example, a star shape, etc.), a method for forming fine characters (so-called micro characters) that cannot be seen with the naked eye, and a diffraction grating are used. In addition, methods have been developed to faithfully reproduce the colors of the subject as if they were photographs, or to express multiple images that differ completely depending on the viewing angle using a diffraction grating. You can also In order to prevent the coating film from being charged, a known antistatic agent may be added.
前記偽造防止磁気テープ転写シートに於いて、回折効果層5の材質としては、Al、Sn、Cr、Ni、Cu、又は、Au、Ag等の金属材料の単体か、若しくは、その化合物等の公知の真空蒸着材料、及びスパッタリング材料が挙げられ、特に真空蒸着による海島構造を構成するには、錫が好適である。   In the forgery-preventing magnetic tape transfer sheet, the material of the diffraction effect layer 5 is a single metal material such as Al, Sn, Cr, Ni, Cu, Au, Ag, or a compound thereof. In particular, tin is suitable for forming a sea-island structure by vacuum deposition.
一方、金属反射層5に高輝性光反射インキを使用し、海島構造を形成する際は、アルミニウム、銀、ニッケル、金、銅、錫、インジウム、コバルト等の微細な金属粉、または金属ナノ粒子等を有機高分子樹脂に分散して得られた高輝性光反射インキを使用することが出来る。この金属粒子の粒径は3μm以下であることが好ましく、より好ましくは1μm以下である。1μm以上の粒子の場合、反射光中の散乱成分が多くなる事により白濁し、美麗な金属光沢を得ることは難しい。
また、高輝性光反射インキを印刷する場合には、回折構造形成層のレリーフ形成面を溶剤
によりアタックさせない様にする注意が必要であるが、グラビア印刷法・フレキソ印刷法・スクリーン印刷法等の公知印刷手段により形成可能である。この様な印刷方式にて回折効果層を設ける場合には、乾燥後の膜厚が0.1〜10μm程度になるように調整すれば良い。
On the other hand, when the high reflective light reflecting ink is used for the metal reflective layer 5 and the sea island structure is formed, fine metal powder such as aluminum, silver, nickel, gold, copper, tin, indium, cobalt, or metal nanoparticles Or the like can be used in a high-brightness light reflecting ink obtained by dispersing the above in an organic polymer resin. The particle size of the metal particles is preferably 3 μm or less, more preferably 1 μm or less. In the case of particles of 1 μm or more, it becomes white turbid due to an increase in scattering components in the reflected light, and it is difficult to obtain a beautiful metallic luster.
Also, when printing high-brightness light reflecting ink, care must be taken not to attack the relief forming surface of the diffractive structure forming layer with a solvent, but gravure printing, flexographic printing, screen printing, etc. It can be formed by known printing means. When the diffraction effect layer is provided by such a printing method, the film thickness after drying may be adjusted to be about 0.1 to 10 μm.
これらの方法により得られる海島構造とは、個々の海島が独立して、隣り合わせた海島とは接続していない形状を指す。島の間隔は100Å〜5000Åであることが望ましい。島の間隔が100Åより小さいとトンネル電流が流れ絶縁性が悪く、島の間隔が5000Åより大きいと全体としての金属の量が少なく美麗な金属光沢は得られない。
加えて、個々の島は微細な島である為、電気的に簡単に飽和してしまい、静電気がスパークを生じるほど滞留しない。また、個々の島がスパークしても、障害を生じるほどのスパークにならず、火災の原因になったり磁気データが破損する様なスパークには発展しない。
その結果、磁気カードとしての信頼性が向上する。
The sea-island structure obtained by these methods refers to a shape in which individual sea-islands are independent and not connected to adjacent sea-islands. It is desirable that the distance between the islands is 100 to 5000 mm. When the distance between the islands is less than 100 mm, a tunnel current flows and the insulation is poor. When the distance between the islands is greater than 5000 mm, the total amount of metal is small and a beautiful metallic luster cannot be obtained.
In addition, since each individual island is a fine island, it is easily saturated electrically and does not stay so much that static electricity causes a spark. Moreover, even if an individual island sparks, it does not become a spark that causes a failure, and does not develop into a spark that causes a fire or damages magnetic data.
As a result, the reliability as a magnetic card is improved.
前記偽造防止磁気テープ転写シートに於いて、磁気記録層6は例えば公知の磁気塗料を用いて印刷もしくは塗布方法により形成したものである。磁気塗料としては例えば、ブチラール樹脂、塩化ビニル/酢酸ビニル共重合体、ウレタン樹脂、ポリエステル樹脂、セルロース系樹脂、アクリル樹脂、スチレン/マレイン酸共重合樹脂等の合成樹脂をバインダー樹脂とし、必要に応じ、ニトリルゴム等のゴム系樹脂、ウレタンエラストマーを添加し、磁性体としてはγ−Fe23、Co含有Fe23、Fe34、バリウムフエライト、ストロンチウムフエライト、Co・Ni・Fe・Crの単独もしくは合金、希土類Co磁性体の他、界面活性剤、シランカップリング剤、可塑剤、ワックス、シリコーンオイル、カーボンその他の顔料を必要に応じて添加し、3本ロール、サンドミル、ボールミル等により混練して作成したものを用いることができる。 In the forgery-preventing magnetic tape transfer sheet, the magnetic recording layer 6 is formed by printing or coating using, for example, a known magnetic paint. Examples of magnetic coating materials include butyral resins, vinyl chloride / vinyl acetate copolymers, urethane resins, polyester resins, cellulose resins, acrylic resins, styrene / maleic acid copolymer resins, and other binder resins. , Rubber resin such as nitrile rubber, and urethane elastomer are added, and γ-Fe 2 O 3 , Co-containing Fe 2 O 3 , Fe 3 O 4 , barium ferrite, strontium ferrite, Co · Ni · Fe · In addition to Cr alone or alloy, rare earth Co magnetic substance, surfactant, silane coupling agent, plasticizer, wax, silicone oil, carbon and other pigments are added as necessary, and three rolls, sand mill, ball mill, etc. What was prepared by kneading with can be used.
磁気記録層6は上記の塗布型以外にも、近年高密度記録の可能な点で注目されている蒸着、特に斜方蒸着によって形成された金属薄膜型のものでもよい。例えばニッケルやコバルトの単独もしくは合金の斜方蒸着膜がその具体例である。   In addition to the coating type described above, the magnetic recording layer 6 may be of a metal thin film type formed by vapor deposition that has been attracting attention in recent years because it enables high-density recording, particularly oblique deposition. For example, an oblique deposition film of nickel or cobalt alone or an alloy is a specific example.
前記偽造防止磁気テープ転写シートは転写シートに於ける接着層7としては、様々なカード基材(例えば、塩化ビニル、PET(ポリエチレンテレフタレート)−G、ポリカーボネート、ポリ乳酸)に接した状態で熱および圧力を与えられることにより、被転写材に接着する機能を有する公知の感熱樹脂(感熱性接着材料)が使用される。   In the anti-counterfeit magnetic tape transfer sheet, as the adhesive layer 7 in the transfer sheet, heat and in contact with various card base materials (for example, vinyl chloride, PET (polyethylene terephthalate) -G, polycarbonate, polylactic acid) A known heat-sensitive resin (heat-sensitive adhesive material) having a function of adhering to the material to be transferred is applied by applying pressure.
以上、一実施例を説明してきたが、意匠性を向上すべく各層を着色することや表面に印刷を施す等、使用の目的により適宜利用可能である。また、各層の接着性を鑑み、各層間に接着アンカー層を設けることも可能である。   Although one embodiment has been described above, it can be appropriately used depending on the purpose of use, such as coloring each layer to improve the design and printing on the surface. In view of the adhesiveness of each layer, an adhesive anchor layer can be provided between the layers.
前記偽造防止磁気テープ転写シートに於いて、保護層3から金属反射層5までの総厚みは2〜10μであり、好ましくは2〜6μである。上記厚みを2〜10μの範囲にすることにより、機械情報処理に支障なく磁気カードに使用することが出来る。   In the forgery-preventing magnetic tape transfer sheet, the total thickness from the protective layer 3 to the metal reflective layer 5 is 2 to 10 μm, preferably 2 to 6 μm. When the thickness is in the range of 2 to 10 μm, it can be used for a magnetic card without any trouble in mechanical information processing.
上記のように構成される前記偽造防止磁気テープ転写シート1を形成するに当たっては種々の方法があるが、例えば、支持体2片面に保護層3を従来公知の方法で塗布した後、回折構造形成層4を形成する樹脂組成物を塗布し、従来公知の方法で回折構造形成部8を形成する。次に、回折効果層5を真空蒸着法により形成した後、磁気記録層6、接着層7を順次塗布して偽造防止磁気テープ転写シート1を形成する。   There are various methods for forming the anti-counterfeit magnetic tape transfer sheet 1 configured as described above. For example, after the protective layer 3 is applied to one side of the support 2 by a conventionally known method, a diffraction structure is formed. The resin composition for forming the layer 4 is applied, and the diffractive structure forming portion 8 is formed by a conventionally known method. Next, after forming the diffraction effect layer 5 by a vacuum deposition method, the magnetic recording layer 6 and the adhesive layer 7 are sequentially applied to form the forgery-preventing magnetic tape transfer sheet 1.
上記の様に構成される偽造防止磁気テープ転写シート1を使用するに際しては、例えば
、図2、図3に示す如く、偽造防止磁気テープ転写シート1を所要の大きさ、形状に切断し、カード9に例えば加熱融着する等により貼着した後、支持体2を剥離して回折構造形成部8及び磁気記録層6を有するカード9を形成することで本発明の磁気カードが得られる。形成された本発明の磁気カードはカード9にホログラム形成部8及び磁気記録層6が一体に形成されており、必要に応じてカード表面の占有面積を小さくすることが出来、その結果カードの装飾性を与える部分が大きくなり、装飾性大なるカードが得られる。又、磁気記録層6上面にホログラム形成部8が形成されているため、磁気記録層6の黒色、茶色等の色が隠れて美麗なカード9が得られる。
When using the anti-counterfeit magnetic tape transfer sheet 1 configured as described above, the anti-counterfeit magnetic tape transfer sheet 1 is cut into a required size and shape as shown in FIGS. After sticking to 9 by, for example, heat fusion, the support 2 is peeled off to form the card 9 having the diffraction structure forming portion 8 and the magnetic recording layer 6 to obtain the magnetic card of the present invention. In the formed magnetic card of the present invention, the hologram forming portion 8 and the magnetic recording layer 6 are integrally formed on the card 9, so that the occupied area of the card surface can be reduced if necessary, and as a result, the decoration of the card The part which gives the sex becomes large, and the card with the large decoration is obtained. Further, since the hologram forming portion 8 is formed on the upper surface of the magnetic recording layer 6, a beautiful card 9 is obtained by hiding the colors such as black and brown of the magnetic recording layer 6.
図4は、前記転写シート1の他の実施例を示すもので、保護層3と回折構造形成層4との間に着色層10を設けたものである。着色層10としては、合成樹脂が使用可能であり、樹脂中に顔料を添加して着色した樹脂組成物を塗布して形成してもよく、合成樹脂のフィルム上に印刷を施したものを貼着して形成してもよい。着色層10が形成された転写シート1はカード等に使用した際、カラフルなデザインのカードを得ることが出来る。以下具体的実施例を挙げて本発明を更に詳細に説明する。   FIG. 4 shows another embodiment of the transfer sheet 1 in which a colored layer 10 is provided between the protective layer 3 and the diffraction structure forming layer 4. As the colored layer 10, a synthetic resin can be used, and it may be formed by applying a resin composition colored by adding a pigment to the resin, or pasting a printed film on a synthetic resin film. You may wear and form. When the transfer sheet 1 on which the colored layer 10 is formed is used for a card or the like, a card having a colorful design can be obtained. Hereinafter, the present invention will be described in more detail with reference to specific examples.
基材として厚み25μのポリエステルフィルムを用い、このフィルムの片面に下記(1)、(2)、(3)、(4)、(5)の各組成物を用い、剥離保護層(厚さ1.5μ)、回折構造形成層(厚さ1.5μ)、回折効果層(50nm)、磁気記録層(15μ)、接着層(3μ)を順次塗布形成して転写シートを作成した。尚、金属反射層は塗布ではなく真空蒸着法を用いて積層した。   A polyester film having a thickness of 25 μm was used as a substrate, and the following compositions (1), (2), (3), (4), (5) were used on one side of the film, and a release protective layer (thickness 1) 0.5 μ), a diffractive structure forming layer (thickness 1.5 μ), a diffraction effect layer (50 nm), a magnetic recording layer (15 μ), and an adhesive layer (3 μ) were sequentially applied to form a transfer sheet. The metal reflective layer was laminated using a vacuum deposition method instead of coating.
上記積層した転写シートを0.1ミリの透明硬質塩化ビニルフィルムに熱転写し、支持体を取り除いた後、乳白及び透明硬質塩化ビニルフィルムを0.7〜0.8ミリの厚さになるように積層し、加熱,加圧により一枚の板にし、打ち抜きによりカードサイズ(54ミリ×86ミリ)に打ち抜くことにより、ホログラム、磁気入りのプラスチックカードを作成した。得られたカードは美麗な外観を呈し、機械情報処理能力も優れ、且つ静電気によるスパークが生じない優れたものとなった。   The laminated transfer sheet is thermally transferred to a 0.1 mm transparent hard vinyl chloride film, and after removing the support, the milky white and the transparent hard vinyl chloride film are 0.7 to 0.8 mm thick. A plastic card containing a hologram and magnetism was prepared by laminating, forming a single plate by heating and pressing, and punching to a card size (54 mm × 86 mm) by punching. The resulting card had a beautiful appearance, an excellent machine information processing capability, and an excellent spark free from static electricity.
(1)剥離性保護層組成物
アクリル樹脂(Tg.105℃)・・19.2重量部
ポリエチレンパウダー・・・・・・・0.8重量部
メチルエチルケトン・・・・・・・・45.0重量部
トルエン ・・・・・・・・・・・・35.0重量部
(2)回折構造形成層組成物
ウレタン樹脂 ・・・・・・・・・・20.0重量部
メチルエチルケトン・・・・・・・・50.0重量部
酢酸エチル・・・・・・・・・・・・30.0重量部
(3)回折効果層組成物

(4)磁気記録層組成物
γ−Fe23・・・・・・・・・・30重量部
塩酸酢酸ビニル共重合体・・・・・・・3重量部
ポリウレタンエラストマー・・・・・20重量部
トルエン・・・・・・・・・・・・・15重量部
メチルエチルケトン・・・・・・・・15重量部
イソプロピルアルコール・・・・・・16重量部
(5)接着層組成物
塩酸酢酸ビニル共重合体・・・・・・20重量部
アクリル樹脂・・・・・・・・・・・10重量部
酢酸エチル・・・・・・・・・・・・20重量部
トルエン・・・・・・・・・・・・・50重量部
(1) Peelable protective layer composition acrylic resin (Tg. 105 ° C) ··· 19.2 parts by weight polyethylene powder ··· 0.8 parts by weight methyl ethyl ketone ··· 45.0 Part by weight Toluene 35.0 parts by weight (2) Diffraction structure forming layer composition urethane resin 20.0 parts by weight Methyl ethyl ketone 50.0 parts by weight ethyl acetate 30.0 parts by weight (3) Diffraction effect layer composition tin (4) Magnetic recording layer composition γ-Fe 2 O 3 ... 30 parts by weight vinyl acetate copolymer ... 3 parts by weight polyurethane elastomer ... 20 parts by weight toluene ... ... 15 parts by weight methyl ethyl ketone ... 15 parts by weight isopropyl alcohol 16 parts by weight (5) Adhesive layer composition Vinyl acetate vinyl acetate copolymer 20 parts by weight acrylic resin 10 parts by weight ethyl acetate・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ 20 parts by weightToluene ・ ・ ・ ・ ・ ・ ・ ・ 50 parts by weight
本発明の磁気カードの実施例に用いられる転写シートを示す縦断面図である。It is a longitudinal cross-sectional view which shows the transfer sheet used for the Example of the magnetic card | curd of this invention. 転写シートをカードに装着し支持体を剥離して本発明の磁気カードを製造している状態を示す斜視図である。It is a perspective view which shows the state which mounts a transfer sheet to a card | curd, peels a support body, and manufactures the magnetic card | curd of this invention. 図2の縦断面図である。It is a longitudinal cross-sectional view of FIG. 本発明の磁気カードの他の実施例に用いられる転写シートを示す縦断面図である。It is a longitudinal cross-sectional view which shows the transfer sheet used for the other Example of the magnetic card | curd of this invention. 本発明の海島構造を構成している回折効果層の表面の概念図である。It is a conceptual diagram of the surface of the diffraction effect layer which comprises the sea island structure of this invention.
符号の説明Explanation of symbols
1 ホログラム入磁気転写シート
2 支持体
3 保護層
4 回折構造形成層
5 回折効果層
6 磁気記録層
7 接着層
8 回折効果形成部
9 カード
10蒸着又は高輝性光反射インキによる島部
11海部
DESCRIPTION OF SYMBOLS 1 Hologram containing magnetic transfer sheet 2 Support body 3 Protective layer 4 Diffraction structure forming layer 5 Diffraction effect layer 6 Magnetic recording layer 7 Adhesive layer 8 Diffraction effect forming part 9 Card 10 Evaporation or island part 11 by high-brightness light reflecting ink

Claims (4)

  1. シート状の支持体上に、該支持体に近い側から、少なくとも、該支持体から剥離が可能な保護層、回折光を発生させるための微小な凹凸面を有する透明な回折構造形成層、前記凹凸面の凹凸に密着して設けられた光学薄膜から成り、該回折構造形成層を透過してきた光を反射させる回折効果層、該回折効果層を被覆して設けてある磁気記録層、該磁気記録層を被覆して設けてある接着層、とを具備して構成される偽造防止磁気テープ転写シートであって、回折効果層が、金属薄膜であり、該金属薄膜が部分的に存在する、海島構造を形成している事を特徴とする、偽造防止磁気テープ転写シート。   On the sheet-like support, from the side close to the support, at least a protective layer that can be peeled off from the support, a transparent diffractive structure forming layer having a minute uneven surface for generating diffracted light, A diffractive effect layer that reflects light transmitted through the diffractive structure forming layer, a magnetic recording layer that covers the diffractive effect layer, and is formed of an optical thin film provided in close contact with the concavo-convex surface of the concavo-convex surface, An anti-counterfeit magnetic tape transfer sheet comprising an adhesive layer provided so as to cover the recording layer, wherein the diffraction effect layer is a metal thin film, and the metal thin film is partially present; An anti-counterfeit magnetic tape transfer sheet characterized by forming a sea-island structure.
  2. 請求項1に記載の偽造防止磁気テープ転写シートであって、金属粉を有機高分子樹脂に分散して得られた高輝性光反射インキを印刷した回折効果層を有する、偽造防止磁気テープ転写シート。   An anti-counterfeit magnetic tape transfer sheet according to claim 1, which has a diffraction effect layer printed with a high-brightness light reflecting ink obtained by dispersing metal powder in an organic polymer resin. .
  3. 請求項2記載の金属粉の平均粒形が3μm以下である事を特徴とした、偽造防止磁気テープ転写シート。   An anti-counterfeit magnetic tape transfer sheet, wherein the average particle shape of the metal powder according to claim 2 is 3 µm or less.
  4. 請求項1〜3何れか記載の偽造防止磁気テープ転写シートを転写貼付したカード。   A card to which the anti-counterfeit magnetic tape transfer sheet according to claim 1 is transferred and pasted.
JP2006184187A 2006-07-04 2006-07-04 Forgery preventing magnetic tape transferring sheet and card Pending JP2008015071A (en)

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JP2009222775A (en) * 2008-03-13 2009-10-01 Toppan Printing Co Ltd Security device and article with label
JP2009237101A (en) * 2008-03-26 2009-10-15 Toppan Printing Co Ltd Security device and labelled article
JP2010085601A (en) * 2008-09-30 2010-04-15 Dainippon Printing Co Ltd Authenticity identification object
USD623690S1 (en) 2010-03-05 2010-09-14 Jpmorgan Chase Bank, N.A. Metal transaction device with gem-like surface
JP2010228165A (en) * 2009-03-26 2010-10-14 Dainippon Printing Co Ltd Authentication identification object
USD643064S1 (en) 2010-07-29 2011-08-09 Jpmorgan Chase Bank, N.A. Metal transaction device with gem-like surface
JP2011221626A (en) * 2010-04-06 2011-11-04 Toppan Printing Co Ltd Card and magnetic transfer sheet, and manufacturing method of magnetic transfer sheet
JP2012088532A (en) * 2010-10-20 2012-05-10 Toppan Printing Co Ltd Optical element and card
US8725589B1 (en) 2009-07-30 2014-05-13 Jpmorgan Chase Bank, N.A. Methods for personalizing multi-layer transaction cards
JP2014240966A (en) * 2014-07-17 2014-12-25 凸版印刷株式会社 Optical element and card, and method for manufacturing the same
USD854083S1 (en) 2013-03-27 2019-07-16 Jpmorgan Chase Bank, N.A. Hybrid transaction device

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JP2005015963A (en) * 2003-06-27 2005-01-20 Toppan Printing Co Ltd Counterfeit-prevented paper

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JPH06167920A (en) * 1992-03-13 1994-06-14 Dainippon Printing Co Ltd Magnetic card
JP2001202616A (en) * 2000-01-20 2001-07-27 Toppan Printing Co Ltd Magnetic information recording medium
JP2005015963A (en) * 2003-06-27 2005-01-20 Toppan Printing Co Ltd Counterfeit-prevented paper

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2009222775A (en) * 2008-03-13 2009-10-01 Toppan Printing Co Ltd Security device and article with label
JP2009237101A (en) * 2008-03-26 2009-10-15 Toppan Printing Co Ltd Security device and labelled article
JP2010085601A (en) * 2008-09-30 2010-04-15 Dainippon Printing Co Ltd Authenticity identification object
JP2010228165A (en) * 2009-03-26 2010-10-14 Dainippon Printing Co Ltd Authentication identification object
US8725589B1 (en) 2009-07-30 2014-05-13 Jpmorgan Chase Bank, N.A. Methods for personalizing multi-layer transaction cards
USD623690S1 (en) 2010-03-05 2010-09-14 Jpmorgan Chase Bank, N.A. Metal transaction device with gem-like surface
JP2011221626A (en) * 2010-04-06 2011-11-04 Toppan Printing Co Ltd Card and magnetic transfer sheet, and manufacturing method of magnetic transfer sheet
USD643064S1 (en) 2010-07-29 2011-08-09 Jpmorgan Chase Bank, N.A. Metal transaction device with gem-like surface
JP2012088532A (en) * 2010-10-20 2012-05-10 Toppan Printing Co Ltd Optical element and card
USD854083S1 (en) 2013-03-27 2019-07-16 Jpmorgan Chase Bank, N.A. Hybrid transaction device
JP2014240966A (en) * 2014-07-17 2014-12-25 凸版印刷株式会社 Optical element and card, and method for manufacturing the same

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