JP2004195691A - Thermal printing/recording medium, commutation ticket and its manufacturing method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a printing/recording medium for a commutation ticket, the card blank of which is elaborately designed, security-intensive and can be mass-produced beforehand using existing facilities and which has a thermal printing layer giving highly perceptible/easily legible print, and a manufacturing method for the printing/recording medium. <P>SOLUTION: The method for manufacturing the printing/recording medium such as a commutation ticket comprises (a) a step to prepare a long belt-like white card substrate; (b) a step to separately manufacture a transfer foil formed of a transfer base material, a release layer, a light diffractive layer, a transparent reflective layer and an adhesive layer laminated in that order; (c) a step to transfer/laminate the transfer foil to the overall surface of the card substrate; (d) a step to form a thermal printing layer on an exposed release layer through a primer layer; (e) a step to cut the laminate into a large-sized sheet with more than one piece of the card apportioned; (f) a step to form a printing layer on the thermal printing layer through a primer layer by an offset printing process according to necessity; and (g) a step to blank the individual card to a card size. The thermal printing/recording medium is provided. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

ここで、６個のＲ₁は夫々互いに独立して水素原子またはメチル基を表わし、Ｒ₂は炭素数が１〜１６個の炭化水素基を表わし、ＸおよびＹは直鎖状または分岐鎖状のアルキレン基を表わす。ｌ、ｍ、ｎ、ｏ及びｐの合計を１００とした場合に、ｌは２０〜９０、ｍは０〜８０、ｎは０〜５０、ｏ＋ｐは１０〜８０、ｐは０〜４０の整数である。
【００１９】
上記式（１）で表わされるウレタン変性アクリル系樹脂は、例えば、好ましい１例として、メタクリル酸メチル２０〜９０モルとメタクリル酸０〜５０モルと２−ヒドロキシエチルメタクリレート１０〜８０モル、Ｚとしてイソボルニルメタクリレート０〜８０モルとを共重合して得られるアクリル共重合体であって、該共重合体中に存在している水酸基にメタクリロイルオキシエチルイソシアネート（２−イソシアネートエチルメタクリレート）を反応させて得られる樹脂である。
【００２０】
上記の電離放射線硬化性樹脂は、レリーフを形成後に、電離放射線を照射して硬化（反応）させると電離放射線硬化樹脂（光回折層１５）となる。電離放射線としては、紫外線（ＵＶ）、可視光線、ガンマー線、Ｘ線、または電子線（ＥＢ）などが適用できるが、紫外線（ＵＶ）、電子線（ＥＢ）が好適である。電離放射線で硬化する電離放射線硬化性樹脂は、紫外線硬化の場合は光重合開始剤、及び／又は光重合促進剤を添加し、エネルギーの高い電子線硬化の場合は添加しないで良く、また、適正な触媒が存在すれば、熱エネルギーでも硬化できる。
【００２１】
光回折層１５の形成は、上述した材料を溶剤に溶解または分散させて、適宜添加剤を添加するなどした組成物インキを、グラビア印刷、スクリーン印刷などの印刷法、またはロールート、リバースロールコート、グラビアコート、リバースグラビアコート、バーコートなどのコーティング方法で塗布し、温度３０℃〜１２０℃で加熱乾燥すればよい。乾燥後の厚さとしては、０．１〜２０μｍ程度、０．５〜１０μｍが好ましい。
【００２２】
（レリーフの形成）次に、転写基材１１／剥離層１３／光回折層１５の層構成となっている、光回折層１５へレリーフを賦形する。レリーフは、２次元または３次元画像を再生可能な表面凹凸パターン（光回折パターン）が形成されたものである。この表面凹凸パターンとしては、物体光と参照光との光の干渉による干渉縞の光の強度分布が凹凸模様で記録されたホログラムや回折格子が適用できる。ホログラムとしては、フレネルホログラム、フラウンホーファーホログラム、レンズレスフーリエ変換ホログラム、イメージホログラム等のレーザ再生ホログラム、及びレインボーホログラム等の白色光再生ホログラム、さらに、それらの原理を利用したカラーホログラム、コンピュータホログラム、ホログラムディスプレイ、マルチプレックスホログラム、ホログラフィックステレオグラム、ホログラフィック回折格子などがある。
【００２３】
回折格子としては、ホログラム記録手段を利用したホログラフィック回折格子があげられ、その他、電子線描画装置等を用いて描画的に回折格子を作成することにより、計算に基づいて任意の回折光が得られる回折格子をあげることもできる。これらのホログラムおよび／または回折格子は、単一若しくは多重に記録しても、組み合わせて記録しても良い。
【００２４】
通常、賦形は、光回折層１５の表面に、レリーフが形成されているスタンパ（金属版、又は樹脂版）を圧着（所謂エンボス）をして、該レリーフを光回折層１５へ形成（複製）した後に、スタンパを剥離することで行う。レリーフを複製するスタンパは、マスターそのものも使用できるが、摩耗や損傷の恐れがあるため、アナログレコード等におけるのと同様、マスターに金属メッキまたは紫外線硬化樹脂を塗布し、紫外線を照射して硬化させて剥がす等の方法（当業者では２Ｐ法と呼ぶ）により、金属又は樹脂による複製を行ない、複製された型（スタンパ）を使用して商業的複製を行なう。
【００２５】
商業的複製の方法は、金型又は樹脂型のスタンパを用いて、光回折層１５の表面へエンボスしてレリーフを複製した後に電離放射線を照射するか、又は、エンボス中に電離放射線を照射してからスタンパを剥離することでレリーフを複製する。この商業的な複製は、長尺状で行うことで連続な複製作業ができる。
【００２６】
光回折層１５の表面へ、スタンパでエンボス中又はエンボス後に、若しくはエンボス中及びエンボス後に、電離放射線を照射して、電離放射線硬化性樹脂を硬化させる。該電離放射線としては、紫外線（ＵＶ）、可視光線、ガンマー線、Ｘ線、または電子線（ＥＢ）などが適用できるが、紫外線（ＵＶ）が好適である。
電子線（ＥＢ）照射は、電子線加速器により発生させた電子線を照射する。電子線の照射量は、通常１００〜１０００ｋｅＶ、好ましくは１００〜３００ｋｅＶのエネルギーを持つ電子を、０．５〜２０Ｍｒａｄ程度の照射量で照射する。照射量が０．５Ｍｒａｄ未満の場合、未反応モノマーが残留して硬化が不十分となる恐れがあり、また、照射量が２０Ｍｒａｄを超えると、架橋密度が高くなり硬化したバインダ、若しくは基材が、損傷を受ける恐れがある。また、硬化の際の雰囲気は、酸素濃度５００ｐｐｍ以下で行われ、通常は２００ｐｐｍ程度で行うのが好ましい。
【００２７】
紫外線を照射する紫外線（ＵＶ）ランプは、高圧水銀ランプ、メタルハライドランプが適用でき、紫外線の波長は２００〜４００ｎｍ程度で、紫外線硬化性樹脂組成物に応じて、適宜波長を選択すれば良い。その照射量は、組成物の材質や量と、ＵＶランプの出力と、加工速度に応じて照射すれば良い。好ましくは、紫外線の波長は３００〜４００ｎｍである。
【００２８】
（透明反射層）透明反射層１７は、ホログラム又は回折格子等のレリーフ構造を設けた光回折層１５面のレリーフへ透明反射層１７へ設けることにより、ホログラムの再生像及び／又は回折格子などが明瞭に視認できるようになる。透明タイプの反射層１７としては、光回折層１５面と屈折率に差のある透明金属化合物を用いる。その光学的な屈折率が光回折層のそれとは異なることにより、ほぼ無色透明な色相で、金属光沢が無いにもかかわらず、ホログラム等のレリーフを視認できる。該透明反射層１７の屈折率としては、光回折層１５面との屈折率の差が大きいほど効果があり、屈折率の差が０．３以上、好ましくは０．５以上、さらに好ましくは１．０以上である。例えば、ＺｎＳ、ＴｉＯ₂、Ａｌ₂Ｏ₃、Ｓｂ₂Ｏ₃、ＳｉＯ、ＴｉＯ、ＳｉＯ₂、ＩＴＯ、等が適用でき、好ましくは、ＩＴＯ、又は酸化スズで、屈折率はいずれも２．０であり、充分な屈折率の差を有している。なお、この透明とは、可視光が十分透過すれば良く、無色または有色で透明なものも含まれる。
【００２９】
上記の金属、又は透明金属化合物の形成は、いずれも１０〜２０００ｎｍ程度、好ましくは１００〜１０００ｎｍの厚さになるよう、蒸着蒸着法、スパッタリング法、イオンプレーティング法などの真空薄膜法で得られる。透明反射層１７の厚さがこの範囲未満では、光がある程度透過して効果が減じ、また、その以上では、反射効果は変わらないので、コスト的に無駄である。
【００３０】
（接着層）接着層１９は熱で溶融又は軟化して接着する熱接着型接着剤、又は粘着型接着剤（感圧型接着剤ともいう）が適用できる。熱接着型接着剤としては、例えば、アイオノマー樹脂、酸変性ポリオレフィン系樹脂、エチレン‐（メタ）アクリル酸共重合体、エチレン‐（メタ）アクリル酸エステル共重合体、ポリエステル系樹脂、ビニル系樹脂、アクリル系樹脂、アクリル酸エステル系樹脂、マレイン酸樹脂、ブチラール系樹脂、アルキッド樹脂、ポリエチレンオキサイド樹脂、ポリウレタン系樹脂、シリコーン樹脂、ゴム系樹脂などが適用でき、これらの樹脂を単独または複数を組み合せて使用する。
【００３１】
これらの接着層１９の樹脂は、接着力などの点で、アクリル系樹脂、ブチラール系樹脂、ポリエステル系樹脂が好適である。接着層１７の厚さは、通常は０．２〜１０μｍ程度、好ましくは０．５〜５μｍである。接着層１９の厚さは、この範囲未満では、被転写体との接着力が不足して脱落し、また、その以上では、接着効果は十分でその効果は変わらないのでコスト的に無駄であり、さらには、サーマルヘッドの熱を無駄に消費してしまう。さらにまた、接着層１９へは、必要に応じて、充填剤、可塑剤、着色剤、帯電防止剤などの添加剤を、適宜加えてもよい。充填剤としては、シリカ、炭酸カルシウムなどの体質顔料が適用でき、特に体質顔料の添加は、箔切れを良化させる。
【００３２】
次に、カード本体の材料について、説明する。
（カード基材）定期券などの印字記録媒体に使用するカード基材２１としては、従来の定期券などの媒体に使用されている基材と同様であり、繰り返し使用に耐える機械的強度、耐薬品性、耐溶剤性、製造に耐える耐熱性などがあれば、用途に応じて種々の材料が適用できる。例えば、上質紙、ＯＣＲ紙、ノーカーボン紙、アート紙等の紙類、塩化ビニル系樹脂、ポリエチレンテレフタレート（ＰＥＴと略す）、ポリエチレンナフタレ−トなどのポリエステル系樹脂などが適用できる。
【００３３】
該基材フィルムは、これら樹脂を主成分とする共重合樹脂、または、混合体（アロイでを含む）、若しくは複数層からなる積層体であっても良い。また、該基材フィルムは、延伸フィルムでも、未延伸フィルムでも良いが、強度を向上させる目的で、一軸方向または二軸方向に延伸したフィルムが好ましい。通常は、ポリエチレンテレフタレート、ポリエチレンナフタレート等のポリエステル系フィルム、ポリ塩化ビニールなどのビニール系フィルム、機械的強度、コスト面から好適に使用され、ポリエチレンテレフタレートが最適である。
【００３４】
該基材フィルムは、塗布に先立って塗布面へ、コロナ放電処理、プラズマ処理、オゾン処理、フレーム処理、プライマー（アンカーコート、接着促進剤、易接着剤とも呼ばれる）塗布処理、予熱処理、除塵埃処理、蒸着処理、アルカリ処理、などの易接着処理を行ってもよい。また、該樹脂フィルムは、必要に応じて、充填剤、可塑剤、着色剤、帯電防止剤などの添加剤を加えても良い。充填剤としては、シリカ、炭酸カルシウムなどの体質顔料が適用できる。本発明では、着色剤として、印字とのコントラストを高くするために、酸化チタンなどの顔料で白色に着色した基材が用いられる。帯電防止剤としては、非イオン系界面活性剤、陰イオン系界面活性剤、陽イオン系界面活性剤などや、ポリアミドやアクリル酸誘導体などが適用できる。
【００３５】
カード基材２１の厚みは、全体の剛度が適当に保たれる厚みであればよく、通常、５０〜５００μｍ程度が適用できるが、１００〜４００μｍが好適で、１５０〜３００μｍが最適である。例えば、ＰＥＴの場合には、１９０〜２６０μｍ程度である。これ以上の厚さでは、剛度があり過ぎて携帯に不便で、コストも高い、これ以下では、繰り返し使用又は携行時の外力で、シワ、折り癖がついたり、磁気の読み取り不良が発生したりする。サイズに関しては、特に限定はないが、少なくとも転写箔を転写する工程までは、定期券サイズの複数倍を面付けできる大判シート、又は長尺で連続した巻取り体とする。そして、転写後のサイズは、必要に応じて、適宜裁断して用いてもよく、最後に定期券サイズに裁断すればよい。
【００３６】
（磁気記録層）磁気記録層２３は、定期券の自動改札等に見られるように、磁気ヘッドに接触させて、記録されている信号を読み取り、証明書が真正であるか、あるいは使用が正当である旨を判定するためのもので、磁性の酸化物をバインダ中に分散させたものであるか、あるいは、磁性金属の蒸着又はスパッタリング等による薄膜である。自動改札でない目視確認の場合には、磁気層はなくともよい。
磁気記録層２３は、γ−Ｆｅ₂Ｏ₃、Ｆｅ₃Ｏ₄、ＣｒＯ₂、Ｆｅ、Ｆｅ−Ｃｒ、Ｆｅ−Ｃｏ、Ｃｏ−Ｃｒ、Ｃｏ−Ｎｉ、ＭｎＡｌ、Ｂａフェライト、Ｓｒフェライトなどの従来公知の磁性微粒子を、バインダへ分散されてなる組成物である。該組成物を溶剤などへ分散又は溶解させた組成物インキを用いて、公知のコーティング法で、カード基材２１上へ、組成物インキを塗布して、乾燥し、必要に応じて、温度３０℃〜７０℃で適宜エージング、または、電離放射線（紫外線、電子線など）を照射して、形成すれば良い。コーティング法としては、例えば、ロールコート、リバースロールコート、トランスファーロールコート、グラビアコート、グラビアリバースコート、コンマコート、ロッドコ−ト、ブレードコート、バーコート、ワイヤーバーコート、ダイコートなどが適用できる。該塗布方法で磁気記録層２３を形成する場合には、その膜厚は１〜１００μｍ、好ましくは５〜２０μｍ程度である。
【００３７】
さらにまた、磁気記録層２３は、Ｆｅ、Ｆｅ−Ｃｒ、Ｆｅ−Ｃｏ、Ｃｏ−Ｃｒ、Ｃｏ−Ｎｉなどの金属あるいは合金を、真空蒸着法、スパッタ法、イオンプレーティング法、メッキ法などの方法によってカード基材２１上に形成することもできる。これらの方法で基材上に形成する場合には、磁気記録層２３の膜厚は１００オングストローム〜１μｍ、好ましくは５００〜２０００オングストローム程度である。
【００３８】
なお、γ−Ｆｅ₂Ｏ₃などの磁性微粒子が分散されるバインダの材料としては、ブチラール樹脂、塩化ビニル／酢酸ビニル共重合体樹脂、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／マレイン酸共重合体樹脂などが用いられ、必要に応じて、ニトリルゴムなどのゴム系樹脂あるいはウレタンエラストマーなどを添加することができる。また、必要に応じて、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、カーボンその他の添加剤を使用することができる。
【００３９】
該カード基材２１の磁気記録層２３の面には、バーコードを設けてもよい。該バーコードは、通常、セキュリティ性を向上させるために、磁性材を含む磁気バーと磁性材を含まないダミーバーとからなっている。このバーコードは、目視ではいずれもが黒色のバーコードと見える。しかしながら、磁気ヘッドで読み取ると異なったバーコードであり、容易に偽造できない。
【００４０】
（その他の層）該カード基材２１の磁気記録層２３の面には、種々の情報や絵柄が印刷されていてもよい。該カード基材２１の磁気記録層２３の面には、必要に応じてプライマ層２５を介して、印刷層２７、保護層２９が設けられてもよい。プライマ層２５としては、磁気記録層２３との接着性を向上させるために、例えば、ポリウレタン、ポリエステル、ポリ塩化ビニル系樹脂、ポリ酢酸ビニル系樹脂、塩化ビニル−酢酸ビニル共重合体、アクリル樹脂、ポリビニルアルコール系樹脂、ポリビニルアセタール樹脂、エチレンと酢酸ビニル或いはアクリル酸などとの共重合体、エポキシ樹脂などが適用できる。
【００４１】
これらの樹脂を、適宜溶剤に溶解または分散して塗布液とし、公知のコーティング法で塗布し乾燥してプライマー層３５とする。また、樹脂にモノマー、オリゴマー、プレポリマーなどと、反応開始剤、硬化剤、架橋剤などを適宜組み合わせたり、あるいは、主剤と硬化剤とを組み合わせて、塗布し乾燥して、乾燥または乾燥した後のエージング処理によって反応させて、形成しても良い。該プライマー層２５の厚さは、０．０５〜１０μｍ程度、好ましくは０．１〜５μｍである。
【００４２】
（印刷層）印刷層２７としては、公知のグラビア印刷、スクリーン印刷、オフセット印刷などの印刷法、コーティング法で、使用方法、使用上の注意事項、警告、発行会社名などの各種の情報が印刷される。好ましくは、コストや簡便性からオフセット印刷である。
【００４３】
（保護層）保護層２９としては、上記印刷層２７と同様のインキで無色のものが適用でき、熱又は紫外線で硬化する熱硬化性樹脂または反応型樹脂が、耐久性から好ましい。熱硬化性樹脂または反応型樹脂としては、塗布液の状態では２０００００以下の分子量であり、塗布、乾燥後に加熱加湿することにより、縮合、付加等の反応により分子量が無限大となるものが好適である。また、これらの樹脂のなかで、樹脂が熱分解するまでの間に軟化または溶融しないものが好ましい。具体的には、例えばエポキシ樹脂、ポリウレタン樹脂、ポリエステル樹脂、ポリウレタンポリカーボネート樹脂、尿素樹脂、メラミン樹脂、アルキッド樹脂、シリコン樹脂、アクリル系反応樹脂（電子線硬化樹脂）、エポキシ−ポリアミド樹脂、ニトロセルロースメラミン樹脂、高分子量ポリエステル樹脂とイソシアネートプレポリマーの混合物、メタクリル酸塩共重合体とジイソシアネートプレポリマーの混合物、ポリエステルポリオールとポリイソシアネートとの混合物、低分子量グリコール／高分子量ジオール／トリフェニルメタントリイソシアネートの混合物およびこれらの混合物等である。
【００４４】
これらの樹脂を、適宜溶剤に溶解または分散して塗布液（インキ）とし、公知の印刷法、コーティング法で塗布し乾燥して保護層２９とする。また、樹脂にモノマー、オリゴマー、プレポリマーなどと、反応開始剤、硬化剤、架橋剤などを適宜組み合わせたり、あるいは、主剤と硬化剤とを組み合わせて、塗布し乾燥して、乾燥または乾燥した後のエージング処理によって反応させて、形成しても良い。該保護層２９の厚さは、０．５〜３０μｍ程度、好ましくは１〜１０μｍである。
【００４５】
（ラミネート転写）ここで、巻取状の転写箔を、巻取状のカード本体へ連続的にラミネート転写する製造方法について説明する。カード本体は巻取でなくとも、シートカットした大判シートでもよく、大判シートを連続的に供給してラミネート転写もでき、巻取でのラミネート転写に近い効果が得られる。
図３は、転写箔の転写層のカード本体への転写状況を説明する説明図である。図３に図示する図３（Ａ）は転写箔１で、図３（Ｂ）のカード本体３へ転写し、転写基材１１を剥離し除去する。転写箔１の転写層が、カード基材２１へ転写されて図３（Ｃ）となる。即ち、剥離層１３／光回折層１５／透明反射層１７／接着層１９／カード基材２１／磁気記録層２３の構成となる。
【００４６】
図４は、従来の転写方法を説明する説明図である。
図５は、本発明で使用する転写方法を説明する説明図である。
（従来の転写）図５に図示するホットスタンプ転写は、従来方法である。カード本体３と、転写箔１の接着層１９面とを重ね合わせて、転写箔１側より、スタンパと呼ぶ加熱した金型を圧着する。転写箔１の接着層１９が軟化又は溶融してカード基材２１へ接着する。そして転写基材を剥離して除去することで、転写層のみがカード側へ転写し移行する。しかしながら、該従来方法では、スタンパを用途などに合わせて、その都度作る必要があり、また、１枚１枚毎に転写するために転写速度も極めて遅く、安価に大量生産ができないという問題がある。
【００４７】
そこで、本発明では、図５に図示するように、全面を連続的に転写する方法とする。転写箔１は、供給部４１の長尺帯状の巻取から、連続したウェブ状に繰り出される。一方、カード本体３も同様に、供給部４２の長尺帯状の巻取から、連続したウェブ状に繰り出される。ウェブ状に繰り出された転写箔１の接着層１９面と、カード本体３のカード基材２１面とを重ね合わせて、加熱ロール４５と受けロール４７との間に挟持し、ロールの回転に応じて走行する。ロールの加熱加圧から開放された剥離部５１で、転写箔１の転写基材１１を剥離し、剥離された転写基材５３は、巻上げ部４９へ巻上げられる。このようにすると、既存の簡易な熱ラミネータを用いて、巻取状態で連続作業によって、極めて安定して効率よく、安価に転写作業をすることができる。
【００４８】
転写後には、図３（Ｃ）の積層体が得られる。該積層体の剥離層１３面、及び磁気記録層２３面に、次の加工が施される。該加工は、巻取状でも、該巻取をカットしたカードが複数枚が面付けできる大判シートで行ってもよい。磁気記録層２３面には、必要に応じてプライマ層２５を介して、印刷層２７が、さらに保護層２９を形成する。該プライマ層２５、印刷層２７、保護層２９の形成は、カード本体３の説明で述べたと同様にすればよく、転写の前で行うか、後で行うかの違いであり、どちらでも、生産数量、用途、納期などに合わせて、適宜選択すればよい。
【００４９】
剥離層１３面には、プライマ層３１を介して、感熱印字層３３が、さらにオフセット印刷層３５が、さらにまた必要に応じてＯＰ層３７を形成する。
（プライマ層）プライマ層３１は、剥離層１３と感熱印字層３３との接着性を向上させるのために、例えば、ポリウレタン、ポリエステル、ポリ塩化ビニル系樹脂、ポリ酢酸ビニル系樹脂、塩化ビニル−酢酸ビニル共重合体、アクリル樹脂、ポリビニルアルコール系樹脂、ポリビニルアセタール樹脂、エチレンと酢酸ビニル或いはアクリル酸などとの共重合体、エポキシ樹脂などが適用できる。
【００５０】
これらの樹脂を、適宜溶剤に溶解または分散して塗布液とし、これを剥離層１３に公知のコーティング法で塗布し乾燥してプライマー層１３とする。また、樹脂にモノマー、オリゴマー、プレポリマーなどと、反応開始剤、硬化剤、架橋剤などを適宜組み合わせたり、あるいは、主剤と硬化剤とを組み合わせて、塗布し乾燥して、乾燥または乾燥した後のエージング処理によって反応させて、形成しても良い。該プライマ層３１の厚さは、０．０５〜１０μｍ程度、好ましくは０．１〜５μｍである。好ましくはＲＬプライマ（ザ・インクテック社製、商品名）である。
【００５１】
（感熱印字層）感熱印字層３３は、後述するサーマルプリンタのサーマルヘッドの熱で、感熱印字層３３中の材料が反応し変色することで印字される。該感熱印字層３３の材料系としては、（１）ロイコ色素系、（２）高分子／有機低分子分散系、（３）液晶系のなどタイプあるが、本発明では、発色及びその色濃度からロイコ色素系が好ましい。該ロイコ色素系の場合、発色／消色は、ロイコ色素と酸性化合物の組合せによるもので、これら化合物を高分子バインダと共に混合した組成物により感熱印字層を形成する。両性化合物を用いる競争反応系と、長鎖アルキル酸性化合物を用いる相分離系がある。
【００５２】
なお、実際の使用においては、特別の冷却を行なうよりも、通常は、サーマルヘッドで１／１０００秒のオーダーの時間で瞬間的に昇温して加熱した後、常温で冷却することで「急冷」が実現でき、上記のような系を発色させることができる。また、「除冷」については、ヒートローラー、ホットスタンプ、ヒーターバー等の熱容量の大きい加熱手段を用いて加熱した後に冷却すれば、与えられた熱量が多いため、「除冷」が実現し、消色ができる。場合によっては、加熱温度、条件を選定することにより、サーマルヘッドでの消去も可能である。このようなロイコ系材料の場合、ロイコ色素の種類を適宜選択することによって、黒、青、赤など種々の色調にカラー化することもできる。下地とのコントラストを高くできるので、好ましくは黒色である。
【００５３】
これらを溶剤へ分散又は溶解した組成物塗液（インキ）として、公知のグラビア印刷、シクリーン印刷などの印刷法、又はロールコーティング、コンマコーティングなどのコーティング法で、塗布し乾燥して形成する。その厚みは、通常１〜１０μｍ程度、好ましくは１〜５μｍ程度である。また、感熱印字層３３を設ける面積的な割合については、カード基材２１の全面に設けても一部に設けても、いずれでもよい。
【００５４】
（オフセット印刷層）オフセット印刷層３５は、公知のオフセット印刷法で印刷した印刷層であり、好ましくは、紫外線（ＵＶ）で硬化させるＵＶオフセット印刷である。オフセット印刷は最も一般的な印刷法であり、小ロットでも精細な画像を、コスト安く印刷することができる。感熱印字層３３面へ強固に接着させるために、プライマ層を介してオフセット印刷層３５を設けてもよい。プライマ層としては、前述したプライマ層２５と同様な材料、塗布法でよい。該印刷に使用する印刷インキは、少なくともビヒクルと着色料とを含む。着色料は、無機顔料、有機顔料のうち１種類以上を含有する。また、蛍光顔料、赤外線吸収顔料などの特種な顔料でもよく、自由な色調のインキができる。
該インキ組成物には、必要に応じて、開始剤、硬化剤、充填剤、可塑剤、分散剤、潤滑剤、帯電防止剤、酸化防止剤、防黴剤、などの添加剤を、適宜加えても良い。これらの組成物を、分散・混練して、また、必要に応じて、溶剤で固形分量や粘度を調整して、インキ組成物とする。該インキを、前記印刷法で印刷して、乾燥し、必要に応じて、温度３０℃〜７０℃で適宜エージング、または、電離放射線（紫外線、電子線）を照射して形成すれば良い。
【００５５】
オフセット印刷層３５の色相は如何なるものでもよいが、地紋、模様、及びロゴなどの印刷絵柄が、その下層の感熱印字層３３へ印字させた印字画像を完全に隠蔽しないことが好ましい。オフセット印刷層３５の印刷絵柄が不透明色の場合には、面積の５〜６０％程度、好ましくは１０〜５０％である。また、印刷絵柄が透明色の場合には、面積の５〜９０％程度、好ましくは１０〜７０％である。オフセット印刷層３５としては、細かい線で構成した模様、社章等の記号、社名等の文字を一面に印刷により形成することが、偽造防止を抑制する点から好ましい。また、複数の異なる模様を設けることにより形成してもよい。
【００５６】
（ＯＰ層）ＯＰ層３７は、必要に応じてオフセット印刷層３５上へ設ければよい。特に定期券は使用期間が最長６ヶ月と長く、乗り換えも含めると、改札ゲートを千回以上も通過する。改札ゲート内の定期券は、磁気記録層２３の読み取りのための磁気ヘッド、搬送ベルトやローラーなどに接触して擦られ、表面が削れたり、汚れたりする。これを防止するために、ＯＰ層３７を設ける。該ＯＰ層３７は、ＵＶオフセット用のＯＰインキ、又は該ＯＰインキへ、流動パラフィン、ワックス、ポリエチレンワックス、シリコーン樹脂粒子、フッ素樹脂粒子などを、添加して、乾燥後の厚さで０．１〜１μｍ程度に極く薄く塗布すればよい。また、流動パラフィン、ワックスなどを直接塗布しても良い。
【００５７】
以上説明してきように、図１、図２、又は図示していないが両面に光回折層を設けた印字記録媒体が得られる。これを、用途に合わせて、例えば定期券であれば、定期券規格の寸法に切断すればよい。該切断は、公知の抜き型による打抜き法などが適用できる。本発明は、基本的には、以上の構成からなっているが、いくつかの変形態様があり得る。上記の例では、基材の下面に磁気記録層を有しているが、これとは別に、あるいはこれに代えて光学記録部及び／又はＩＣによる記録部を有していても良い。また、用途としても、定期券だけでなく、入場証、食堂の食券、通行証、点数カード等、種々の用途に適用でき、それぞれの用途に合わせて適した基材材料を使用して構成することができる。
【００５８】
（情報印字方法）感熱印字層３３へ、ＯＰ層３７面からサーマルプリンタのサーマルヘッドで、ドット状に加熱して印字する。該印字は、証明の証明事項、定期券であれば、有効期間、乗車区間、氏名、年齢、等の所望の個別情報をコンピュータ端末から出力して使用する。また、これらの所望の個別情報を磁気記録にも記録しておけば、印字表示と磁気記録の両情報を比較することで、偽造や変造の事実を確認でき、セキュリティ性を高められる。
該個別情報は、従来の印字法である熱溶融転写型プリンタ（熱溶融型プリンタ、熱転写プリンタともいう）では、熱溶融型インクリボンを用いるが、本発明ではインクリボンは要らないので、コストが安い。
【００５９】
（サーマルプリンタ）サーマルプリンタは、感熱印字ヘッド（以下、プリンタヘッド、又はサーマルヘッドと称す）とプラテンローラとが対向し、これらの間に印字記録媒体が挟持されている。これらは、回転するプラテンローラによって、プリンタヘッドに押し付けられて、回転に応じて走行する。感熱印字層３３は、その上にあるオフセット印刷層３５、ＯＰ層３７とを経由して加熱されて、印字される。そして、プリンタヘッドの画像に応じた発熱素子が発熱して、選択的に加熱された感熱印字層が、ドット状に発色して、所定の情報画像が印字（表示）される。該印字の方式にはシリアル方式とライン方式があり、どちらも適用できる。プリンタヘッドには、レーザヒートモード熱ヘッド、光熱記録ヘッド、サーマルヘッドなどあり、いずれも適用できるが、好ましくは、サーマルヘッドである。サーマルヘッドは、情報信号に応じてドット状の発熱素子を発熱させて、感熱印字層を加熱することにより、情報を印字する、最も一般的なプリンタヘッドである。該プリンタヘッドの解像度に限定はなく、印字する情報の大きさなどで、適宜選択すればよい。通常、１０ｄｐｉ以上、好ましくは１００ｄｐｉ以上である。
【００６０】
（印字濃度）以上説明してきたサーマルプリンタでドット状に加熱されて、所定の情報画像が印字（表示）される。該感熱印字層３３の必要な事項は、使用する用途によって適宜選択すればよい。用途が定期券であれば、必要な事項としては、少なくとも有効期間、乗車区間、氏名である。また、その事項は駅務員や乗務員によって、目視確認されることがあるので、ある程度の印字濃度が必要であり、その印字のＰＣＳ値が０．５以上、好ましくは０．７５以上である。ＰＣＳ値が０．５以下では視認しにくく、また、ＰＣＳ値が０．７５以上あればバーコードリーダなどで機械読み取りもできる。
本発明では、感熱印字層が発色した印字の、下地ができるだけ光を散乱する構成として、コントラストを高められた。即ち、透明な光回折層、白色カード基材、及び部分的な印刷絵柄とすることで、印字とこれらの差をつけて、ＰＣＳ値を確保した。
【００６１】
（ＰＣＳ値）表示の読み取りやすさは、商品管理に多用されているバーコードを読取装置（バーコードリーダ）で読み取る際の基準である、ＰＣＳ値を引用する。バーコードの白バー（下地）と黒バー（表示部）とは、コントラストが高いほど、バーコードリーダで読み取りやすい。そこで、バーコードの光学的特性は、ＪＩＳ−Ｘ−０５０１及びＸ−０５０２にて、ＰＣＳ値（Ｐｒｉｎｔ Ｃｏｎｔｒａｓｔ Ｓｉｇｎａｌ）なる量が定義され、そのＰＣＳ値が或る一定以上の値でなければならない、と規定されている。該ＰＣＳ値とは、バーコードのバーコードシンボル面の法線に対して、ＪＩＳ−Ｚ−８７２０に規定するＡ光源の４５°の入射角度で照射された時の、白バー及びマージン部分の反射率と黒バーの反射率と、から算出される。白バー及びマージンの反射率をＲＬ、黒バーの反射率をＲ０とすると、ＰＣＳ値＝（ＲＬ−Ｒ０）／ＲＬとして定義される。ＪＩＳ−Ｘ−０５０１では共通商品用バーコードシンボルとして必要な最小ＰＣＳ値を白バーの反射率の関数として規定しており、またＪＩＳ−Ｘ−０５０２では物流商品用バーコードシンボルとして、白バーが段ボール等の下地の色となりうるため、ＪＩＳ−Ｘ−０５０１よりもゆるい規格として、必要な最小ＰＣＳ値を一定値の０．７５と規定している。また、ＰＣＳ値の測定は、反射濃度計マクベスＰＣＭ−２機（マクベス社製、商品名）を用いて測定される。
【００６２】
【実施例】
（実施例１）
（ａ）少なくとも一方の面に磁気記録層を有する長尺帯状で白色のカード基材を準備する工程
（カード本体３の作製）厚さ１８８μｍの白色ポリエチレンテレフタレートＥ２０（東レ社製、片面易接着処理）の処理面へ、下記組成の組成物インキを、グラビアリバースコート法で、乾燥後の厚さが１０μｍになるように、塗布し乾燥し、さらに８０℃で３日間エージングして、磁気記録層２３を形成して、カード本体３とした。該カード本体３も、長尺の巻取り体である。

【００６３】
（ｂ）別途、転写基材の一方の面に、少なくとも剥離層、光回折層、透明反射層、及び接着層を順次積層してなる転写箔を作成する工程
まず、転写基材１１として、厚さ２５μｍのルミラーＴ６０（東レ社製、ポリエステルフィルム商品名）を用いた。この一方の面へ、剥離ニス４５−３（昭和インク社製、アクリル系樹脂の剥離インキ商品名）を固形分１０質量％となるように溶剤で稀釈して、ロールコーティング法で、乾燥後の厚さが１μｍになるように塗布し乾燥して、剥離層１３を形成した。該剥離層１３面へ、ユピマーＬＺ０６５（三菱化学社製、紫外線硬化樹脂商品名樹脂）を固形分２５質量％となるように溶剤で稀釈して、リバースロールコーティング法で、乾燥後の厚さが３μｍになるように塗布し乾燥して、光回折層１５を形成した。該光回折層１５面へ、スタンパを加圧（エンボス）してレリーフを賦形する。別途レーザー光を用いて作ったマスターホログラムから、２Ｐ法で複製したスタンパを複製装置のエンポスローラーに貼着して、１５０℃で相対するローラーと間で加熱プレス（エンボス）して、微細な凹凸パターンからなるレリーフを賦形させた。賦形後直ちに、高圧水銀灯で波長が２００〜４００ｎｍの紫外線を照射して硬化させた。該光回折層１５面へ、真空蒸着法で、厚さが４００ｎｍになるように硫化亜鉛を蒸着して、透明反射層１７を形成した。該透明反射層１７面へ、塩化ビニル酢酸ビニル共重合体が２５質量％、マイクロシリカ２５質量％となるように溶剤で稀釈して、グラビア印刷法で、乾燥後の厚さが２μｍになるように、全面に塗布し乾燥して、接着層１９を形成して、転写箔１を得た。該転写箔１は、長尺の巻取り体である。
【００６４】
（ｃ）該転写箔を、前記カード基材の少なくとも一方の全面へラミネートし、前記転写箔の転写基材のみを剥離する工程
上記のカード本体３を、図４に図示する供給部４３から繰り出し、上記転写箔１を供給部４１から繰り出し、該カード本体３のＰＥＴ面と該転写箔１の接着層１９面とを、１５０℃の加熱した加熱ロール４５と受けロール４７との間で圧着して、転写基材１１のみを剥離して除去した。
【００６５】
（ｄ）前記カード基材へ転写された、剥離層、光回折層、透明反射層及び接着層の、露出した剥離層上へ、プライマ層を介して、感熱印字層を形成する工程
次に転写基材１１が剥離されて露出した剥離層１３面へ、下記組成のプライマ層組成物インキを、ロールコート法で、乾燥後の厚さが１μｍになるように、塗布し乾燥し、さらに５０℃で２日間エージングして、プライマ層３１を形成した。

続いて、プライマ層３１面へ、下記組成の感熱印字層組成物インキを、リバースロールコート法で、乾燥後の厚さが３μｍになるように、塗布し乾燥し、さらに５０℃で２日間エージングして、感熱印字層３３を形成した。
感熱印字組成物インキとしては、まず、３−ジ−ｎ−ブチルアミノ−６−メチル−７−アニリノフルオラン２５部を２．５％ポリビニルアルコール水溶液８０部と共にボールミルで２４時間粉砕し、染料前駆体分散液を得た。次いで、４´−ヒドロキシ−ｎ−ヘプタンアニリド６３部を２．５％ポリビニルアルコール水溶液２００部と共にボールミルで２４時間粉砕し、可逆顕色剤分散液を得た。得られた２種の分散液を混合し、１０％ポリビニルアルコール水溶液１３０部を添加し十分に撹拌して、感熱印字組成物インキとした。
【００６６】
（ｅ）該感熱印字層が形成された長尺帯状のカード基材をシートカットして、複数のカードが面付けされた大判シート状態とする工程
長尺で帯状態を公知のシートカット機で、複数のカードを面付けした大判状態へシートカットした。そして、該カード本体３の磁気記録層２３面へ、公知の白グラビアインキで、グラビア印刷法で、ご使用上の注意文を印刷して、印刷層２７とした。該印刷層２７面へ、白色着色料を取り除いた無色の印刷層２７インキで、グラビア印刷法で、全面に印刷して、保護層２９とした。
【００６７】
（ｆ）前記感熱印字層上へ、必要に応じてプライマ層を介して、オフセット印刷法で印刷層を形成する工程
該感熱印字層３３の表面に、下記組成のプライマ層組成物インキを、ロールコート法で、乾燥後の厚さが１μｍになるように、塗布し乾燥し、さらに５０℃で２日間エージングして、プライマ層を形成した。

続いて、該プライマ層面へ、黄、赤、藍、墨色のＵＶカルトンインキ（ザ・インクテック社製、ＵＶオフセットインキ商品名）を用いて、ＵＶオフセット印刷法で、会社名及びロゴをデフォルトした迷彩模様とした絵柄を印刷して、オフセット印刷層３５とし、同時に、無色のＵＶカルトンＯＰインキ（ザ・インクテック社製、ＵＶオフセットインキ商品名）を用いて、ＵＶオフセット印刷法で、全面に印刷して、ＯＰ層３７とした後に、紫外線を照射して硬化させた。
【００６８】
（ｇ）カードサイズへ打抜いてカードとする工程
次いで、この積層基材を定期券サイズに打抜いて、実施例１の印字記録媒体を得た。
【００６９】
（実施例２）
光回折層の材料として、ユピマーＬＺ０６５の代わりに、ＳＵＺ６００（ザ・インクテック社製、紫外線硬化樹脂商品名）を用い、また、レリーフを賦形するスタンパとして、別途電子線を用いて描画したマスター回析格子を用いて作ったマスターレリーフから、２Ｐ法で複製したスタンパを用い、さらに、透明反射層１７の材料として硫化亜鉛を用いる以外は、実施例１と同様にして、実施例２の印字記録媒体を得た。
【００７０】
（試験発行）実施例１及び実施例２の印字記録媒体を、定期券テスト発行機でテスト発行した。磁気記録層へ、乗車駅名、降車駅名、有効期限、氏名の個別情報を記録し、同時に感熱印字層へ、サーマルプリンタで、０．６ｍｊ／ドットの印字エネルギーを印加したところ、乗車駅名、降車駅名、有効期限、氏名の個別情報が印字でき、目視で十分に判読できた。
【００７１】
（評価）印字は良好で、実施例１及び実施例２の印字記録媒体ともにＰＣＳ値は０．５５で、目視で良好に判読することができた。また、実施例１及び実施例２の印字記録媒体ともにカラーコピー機でコピーしても、ホログラム又は回折格子の部分は再現されずに、コピー品は一目で偽造品を判った。さらに、有効期限を改竄すべく、消しゴムで消そうとしたが印字は積層体の中間に位置しているために消せず、改竄することができなかった。さらにまた、印字記録媒体を、自動改札テスト機へ通過されたところ、ゲートが開き磁気情報は正常に読み取れた。
【００７２】
【発明の効果】
本発明の定期券などの感熱印字記録媒体によれば、（１）光回折層の画像で意匠性及びセキュリティ性を高め、該光回折層上へ地紋などの印刷層を設けてさらにセキュリティ性を高め、（２）光回折層上へプライマ層を介して感熱印字記録層を設けて、強固な接着力で耐久性を高め、（３）該感熱印字記録層へサーマルプリンタで個別の可変情報を印字でき、しかも下地とコントラストが高く判読しやすい。
また、該感熱印字層３３には使用する用途によって、必要な所望事項を適宜選択して可変に印字することができる。その印字のＰＣＳ値が高いので、目視でも十分に視認でき、機械読み取りにも対応できる。
さらにまた、少なくとも１つの印字した個別情報を、不可視な磁気記録にも記録しておけば、印字表示情報と磁気記録情報とを比較することで、偽造や変造の事実を確認でき、さらにセキュリティ性を高められる。
【００７３】
本発明の感熱印字記録媒体の製造方法によれば、既存の設備で、高意匠性とセキュリティ性を合わせ持つ生カードを予め大量生産でき、セキュリティ性が高いが、高価で使用しにくいホログラムを、安価に適用することができる。
また、印刷層、オフセット印刷層などの文言は発行会社毎に異なるので、会社毎に最初の工程から製造していては生産効率がすこぶる悪い。しかし、本発明によれば、一旦、個別の情報や絵柄を除いた、印字記録媒体としての機能的な部分を先行して、大量に製造しておいて、その中の１部を用いて、発行会社毎の個別の情報の印字や、地紋や絵柄をオフセット印刷層などを個別に製造できるので、極めて生産効率が高い。
【図面の簡単な説明】
【図１】本発明の１実施例を示す印字記録媒体の断面図である。
【図２】本発明の他の１実施例を示す印字記録媒体の断面図である。
【図３】転写箔の転写層のカード本体への転写状況を説明する説明図である。
【図４】従来の転写方法を説明する説明図である。
【図５】本発明で使用する転写方法を説明する説明図である。
【符号の説明】
１ 転写箔
３ カード本体
１１ 転写基材
１３ 剥離層
１５ 光回折層
１７ 透明反射層
１９ 接着層
２１ カ−ド基材
２３ 磁気記録層
２５ プライマ層
２７ 印刷層
２９ 保護層
３１ プライマ層
３３ 感熱印字層
３５ オフセット印刷層
３７ ＯＰ層
４１、４３ 供給部
４５ 加熱ロール
４７ 受けロール
４９ 巻上げ部
５１ 隔離部
５３ 剥離された転写基材
５５ 転写層[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a thermal print recording medium, and more particularly, to a thermal print recording medium such as a commuter pass with good design and enhanced anti-counterfeiting properties, and a method for producing the same.
[0002]
[Prior art]
(Technical background) Medium that certifies the right or qualification for paying a fixed amount, such as a regular ticket for transportation (hereinafter referred to as a commuter ticket), an entrance card, a dining ticket for a cafeteria, a pass card, a service point card, etc. Media, called prepaid cards). The print recording medium is usually provided with a magnetic recording layer on one side of a card substrate, such as a plastic sheet or paper, and on the other side, desired information such as a name, a purpose such as a commuter pass, a validity period, and a fee. Is printed. Since the print recording medium has a certain economic value and effect, it is constantly fraudulently falsified, falsified, and improperly used. In recent years, the accuracy of color copiers has been remarkably improved, making it easy to forge various types of print recording media. ing. In particular, for commuter passes with a large population, individual information such as the validity period, section, name, and age is often falsified, and various security measures have been proposed.
[0003]
In order to enhance the security of the print recording medium, various counterfeiting prevention means are applied, while the design of the card surface is required, so that the types of tickets are diversified. In other words, the type (ticket type) of the card body as an object (a card before the information unique to the user is recorded or printed and called by a person skilled in the art as a raw card or a white card) is increasing more and more, There are many types of raw card tickets in small quantities, which is a bottleneck in management and card production. In the state of the raw card, actual use is not possible.For example, if it is a commuter pass, desired items are magnetically recorded on the magnetic recording layer as needed at the time of release, and the name, ride Only when desired information (including personal information) such as a section, a validity period, and a fee is printed (also referred to as display or record) and displayed, use is possible for the first time. On the lower surface of the printing surface, there is usually a copy-forgery-inhibited pattern printing layer on which a camouflage copy-forgery-inhibited pattern or the like is printed in addition to a picture in order to make forgery difficult.
For thermal printing recording media such as commuter passes, raw cards having both high designability and security are mass-produced beforehand, and magnetic information and desired information such as intended use are magnetically recorded and issued as necessary at the time of card issuance. It is required to be able to print and / or visually display, and to further associate the magnetic recording information with the printing information.
[0004]
(Prior Art) Conventionally, a method of hot-stamp-transferring a hologram that cannot be reproduced by copying has been known for illegal copying by a color copying machine. However, hot stamp transfer of expensive holograms to individual cards becomes even more expensive and cannot be mass-produced. Further, there is known a method in which it is difficult to copy simply by copying, or a character such as "to be copied" or "invalid" appears by making the copy. However, the progress of color copiers is remarkable, and it is in a state of regression.
In addition, the applicant has formed a metallic glossy surface on a part of the printed surface so that the copy-forgery-inhibited pattern or print is buried in the black background after copying on the metallic glossy surface and becomes invisible. A commuter pass in which a layer and a printing layer are sequentially laminated is disclosed (for example, see Patent Document 1). Further, a technology is disclosed in which a copy-forgery-inhibited pattern and printing are provided on an image receiving layer having metallic luster to prevent forgery of color copy (for example, see Patent Document 2). However, in both cases, the tint block and the print are difficult to read with the naked eye, and the design remains poor.
Furthermore, the applicant has disclosed a commuter pass provided with a stripe-shaped hologram and a tint block printing layer and displayed with a thermosensitive coloring layer below the tint block printing layer (for example, see Patent Document 3). However, there is a drawback that only one copy of the hologram is formed, and if another similar hologram is cut out and pasted, it is difficult to confirm the authenticity of the hologram visually with a crowded ticket gate.
Furthermore, the applicant has disclosed in Japanese Patent Application No. 2001-276326 a card having a magnetic recording layer and a thermal printing recording layer on one surface of a white base material and laminating a transparent or reflection hologram on the other surface. are doing. However, printing using the thermal printing recording layer has a drawback that it is difficult to read because the contrast is low in comparison with the color tone of the magnetic recording layer.
[0005]
[Patent Document 1] Japanese Patent Application Laid-Open No. 9-234942
[Patent Document 2] JP-A-2000-103187
[Patent Document 3] JP-A-10-278462
[0006]
[Problems to be solved by the invention]
Therefore, the present invention has been made to solve such a problem. The purpose is that raw cards having both high designability and security can be mass-produced in advance using existing equipment.At the time of card issuance, magnetic information and desired information such as the intended use can be recorded and recorded as necessary. And / or a printable medium such as a commuter pass which is easy to read because the contrast with the underlying light diffractive layer and the white base material is high because the heat sensitive print layer can print and display visually. , And a method of manufacturing the same.
[0007]
[Means for Solving the Problems]
In order to solve the above-mentioned problems, the method for producing a thermal printing recording medium according to the first aspect of the present invention comprises the steps of (a) preparing a long strip-shaped white card base material having a magnetic recording layer on at least one surface. And (b) separately preparing a transfer foil in which at least one of a release layer, a light diffraction layer, a transparent reflection layer, and an adhesive layer is sequentially laminated on one surface of the transfer base material; A step of laminating a transfer foil on at least one entire surface of the card base material and peeling off only the transfer base material of the transfer foil; and (d) a release layer, a light diffraction layer transferred to the card base material, Forming a thermal print layer on the exposed release layer of the transparent reflective layer and the adhesive layer via a primer layer; and (e) sheeting the long strip-shaped card base material on which the thermal print layer is formed. Cut to form a large sheet with multiple cards imposed (F) a step of forming a printing layer on the thermal printing layer by an offset printing method via a primer layer as necessary, and (g) a step of punching into a card size to form a card. It is made to consist of. According to the present invention, raw cards having both high designability and security can be mass-produced in advance using existing equipment. At the time of card issuance, magnetic information and desired information such as intended use are magnetically recorded as necessary. The present invention provides a method for producing a thermal printing recording medium that can be used as a usable card by printing and / or displaying it visually.
The thermal print recording medium according to the second aspect of the present invention comprises: (a) a step of preparing a long strip-shaped white card substrate having a magnetic recording layer on at least one surface; and (b) separately providing a transfer substrate. Forming a transfer foil in which at least one of a release layer, a light diffraction layer, a transparent reflection layer, and an adhesive layer is sequentially laminated on one surface; and (c) attaching the transfer foil to at least one of the card base materials. A step of laminating the entire surface and peeling only the transfer substrate of the transfer foil; and (d) an exposed release layer of the release layer, the light diffraction layer, the transparent reflection layer, and the adhesive layer transferred to the card substrate. A step of forming a thermal printing layer via a primer layer, and (e) sheet cutting the long strip-shaped card base material on which the thermal printing layer was formed, thereby imposing a plurality of cards. A step of forming a large-size sheet, and (f) a step of Depending via a primer layer, forming a printing layer by offset printing, in which so as to manufacturing process from which the cards are punched to (g) card size. According to the present invention, when a card is issued, magnetic information and desired information such as a purpose of use are magnetically recorded and / or printed as necessary, and are visually displayed, so that the card can be used. (Display) has a high contrast with the underlying light diffraction layer and the white base material, so that a thermal printing recording medium with good visibility and easy to read is provided.
According to a third aspect of the present invention, in the thermal printing recording medium, the optical diffraction layer is a hologram or a diffraction grating, and desired items are printed on the thermal printing layer by a thermal printer. According to the present invention, a printing layer such as a tint block is provided on the light diffraction layer, and information that can be individually changed can be printed. A medium is provided.
In the commuter pass according to the invention of claim 4, the desired items are at least a valid period, a boarding section, and a name, and the print color of the desired items includes at least black, and the PCS value of the black is 0.5 or more. It is as it were. According to the present invention, print information can be easily visually checked even in a crowded ticket gate, and can be easily read by a machine. In addition, a commuter pass is provided in which print information can be variably printed by appropriately selecting desired desired items.
In the commuter pass according to the invention of claim 5, the printing information and the magnetic recording information are associated with each other. ADVANTAGE OF THE INVENTION According to this invention, since the fact of forgery or falsification can be confirmed by comparing print information and magnetic recording information, a commuter pass with higher security is provided.
[0008]
BEST MODE FOR CARRYING OUT THE INVENTION
Embodiments of the present invention will be described in detail with reference to the drawings.
FIG. 1 is a sectional view of a print recording medium showing one embodiment of the present invention.
FIG. 2 is a sectional view of a print recording medium showing another embodiment of the present invention.
(Layer Structure of Print Recording Medium) FIG. 1 shows a transfer foil 1 composed of a transfer base material 11 / a release layer 13 / a light diffraction layer 15 / a transparent reflection layer 17 / an adhesive layer 19 on one surface of a card base material 21. The transfer substrate 11 was peeled off and removed, and only the transfer layer (release layer 13 / light diffraction layer 15 / transparent reflective layer 17 / adhesive layer 19) was transferred. Next, a thermal printing layer 33 is provided on the exposed release layer 13 via a primer layer 31. Further, an offset printing layer 35 such as a picture or a tint block may be provided on the heat-sensitive printing layer 33, and an OP layer 37 may be provided if necessary.
A magnetic recording layer 23 is provided on at least one surface of the card substrate 21, and a bar code in which magnetism and a magnet without magnetism are mixed may be provided on the surface of the magnetic recording layer 23 for security. . Further, a print layer 27 and a protective layer 29 may be provided on the surface of the magnetic recording layer 23 via a primer layer 25 as necessary. The primer layer 25, the printing layer 27, and the protective layer 29 may be provided as appropriate according to the application and requirements. Note that the symbol “/” used in this specification indicates a state in which the layers are integrally laminated.
[0009]
On the thermal printing layer 33 thus formed, individually variable information is printed and displayed from the offset printing layer 35 or the OP layer 37 provided as needed by using a thermal printer. By recording information on the surface of the magnetic recording layer as required, tickets such as commuter pass (print recording medium) can be obtained. FIG. 2 shows an embodiment in which a transfer layer (release layer 13 / light diffraction layer 15 / transparent reflective layer 17 / adhesive layer 19) is transferred to a magnetic recording layer surface of a card substrate. Although not shown, transfer layers may be provided on both sides of the card base material.
[0010]
(Points of the Invention) The present inventors have continued to develop a series of prevention techniques described in the related art, and have repeated various studies while forging, improving, and forging, and repeating further improvements. Therefore, a card base 21 with a magnetic recording layer and an optical diffraction layer transfer foil 1 such as a hologram are prepared or manufactured in advance, and the card base 21 and the transfer foil 1 are wound in a long strip shape (one skilled in the art). Is referred to as winding and hereinafter referred to as winding). The transfer foil 1 and the card substrate 21 with the magnetic recording layer are entirely laminated and transferred by winding together to form a heat-sensitive printing layer. Thereafter, the winding is cut into a sheet to form a large sheet on which a plurality of cards are imposed. After the printing layer is provided in the large-sized sheet state, the card is punched into a card size to obtain a card.
In this way, instead of the conventional method of forming a hologram on a small number of cards or on a card-by-card basis by means of stripe transfer or hot stamp transfer, continuous winding and lamination transfer of the whole winding is performed at once. It has been found that holograms can be formed on a large number of cards, and mass production methods are used with existing equipment.
[0011]
Next, the transfer foil, the card body, the material for printing after transfer, and the method of forming the same will be described.
FIG. 3 is an explanatory diagram for explaining a state of transfer of the transfer layer of the transfer foil to the card body.
(Transfer Foil) FIG. 3 (A) shown in FIG. 3 is a transfer foil 1, which is transferred to the card body 3 of FIG. 3 (B), and the transfer base material 11 is peeled off and removed. The transfer layer of the transfer foil 1 is transferred to the card base material 21 as shown in FIG. The transfer layer is composed of a release layer 13, an optical diffraction layer 15, a transparent reflection layer 17, and an adhesive layer 19. If necessary, a protective layer may be provided between the peeling layer 13 and the light diffraction layer 15.
[0012]
(Protective Layer) The protective layer enhances the releasability between the transfer substrate 11 and the light diffraction layer 15 and protects the light diffraction layer 15 after the transfer substrate 11 is peeled off. Examples of the material of the protective layer include an acrylic resin, a polyester resin, an amide resin, a cellulose resin, a vinyl resin, a urethane resin, an epoxy resin, and the like, and the thickness thereof is preferably 0.5 to 5 μm. However, the present invention is not limited to these.
[0013]
(Transfer Substrate) As the transfer substrate 11, any film-like material can be used, and its material, thickness, and optical properties are not limited. Specifically, polyethylene terephthalate, polybutylene A single substance or a laminate of terephthalate, polypropylene, polyimide, polymethyl methacrylate, polystyrene, polycarbonate and the like can be applied. Further, the film thickness is 1 to 100 μm, preferably 4 to 25 μm.
[0014]
(Release Layer) As the release layer 13, a release resin, a resin containing a release agent, a curable resin crosslinked by ionizing radiation, a wax, or the like can be used. The release resin is, for example, a fluorine resin, silicone, a melamine resin, an epoxy resin, a polyester resin, an acrylic resin, a cellulose resin, or the like. The resin containing a release agent is, for example, an acrylic resin, a vinyl resin, a polyester resin, a cellulose resin, or the like obtained by adding or copolymerizing a release agent such as a fluorine resin, silicone, or various waxes. is there. The curable resin that is crosslinked by ionizing radiation is, for example, a resin containing a monomer / oligomer having a functional group that is polymerized (cured) by ionizing radiation such as ultraviolet (UV) or electron beam (EB).
[0015]
The release layer 13 is formed by printing a composition ink obtained by dispersing or dissolving the resin in a solvent using a printing method such as gravure printing or screen printing, or a coating method such as rolute, reverse roll coating, gravure coating, or reverse gravure coating. It is applied and heated and dried at a temperature of 30 ° C. to 120 ° C. to remove the solvent and form a release layer 13. In addition, the curable resin that is crosslinked by ionizing radiation is applied to at least one part of the composition ink as it is without solvent or dispersed or dissolved in a solvent by a known printing method or coating method, and dried as necessary. Then, it is cured by irradiation with ionizing radiation. The thickness of the release layer 13 is generally about 0.01 μm to 5.0 μm, preferably about 0.5 μm to 3.0 μm. As long as a film having no defect can be obtained, the thinner the better, the better. However, when the thickness is 0.1 μm or more, a better film is obtained and the peeling force is stabilized.
[0016]
(Light Diffraction Layer) The light diffraction layer 15 is a colorless or colored transparent or translucent layer, and may be a single layer or a multilayer, and is a thermoplastic resin capable of reproducing irregularities by casting or embossing. A resin, a curable resin, or a photosensitive resin composition capable of forming a cured portion and an uncured portion according to light diffraction pattern information can be used. Specifically, for example, a thermoplastic resin such as polyvinyl chloride, acrylic (polymethyl methacrylate), polystyrene, or polycarbonate, unsaturated polyester, melamine, epoxy, polyester (meth) acrylate, urethane (meth) acrylate, epoxy ( It is a thermosetting resin such as meth) acrylate, polyether (meth) acrylate, polyol (meth) acrylate, melamine (meth) acrylate, or triazine-based acrylate, each of which alone, a thermoplastic resin, or a thermosetting resin. A mixture of two or a mixture of a thermoplastic resin and a thermosetting resin may be used. A resin having a radical polymerizable unsaturated group and having thermoformability, and an ionizing radiation curable resin composition to which a radical polymerizable unsaturated monomer is added can also be used.
[0017]
Further, as the ionizing radiation-curable resin (light diffraction layer 15), an epoxy-modified acrylate resin, a urethane-modified acrylate resin, an acryl-modified polyester, or the like can be used, and is preferably a urethane-modified acrylate resin, and particularly represented by the following general formula. Urethane-modified acrylic resins are preferred.
[0018]
Embedded image

Where six R ₁ Each independently represents a hydrogen atom or a methyl group; _Two Represents a hydrocarbon group having 1 to 16 carbon atoms, and X and Y each represent a linear or branched alkylene group. When the total of l, m, n, o, and p is 100, 1 is 20 to 90, m is 0 to 80, n is 0 to 50, o + p is 10 to 80, and p is an integer of 0 to 40. is there.
[0019]
The urethane-modified acrylic resin represented by the above formula (1) is preferably, for example, 20 to 90 mol of methyl methacrylate, 0 to 50 mol of methacrylic acid, 10 to 80 mol of 2-hydroxyethyl methacrylate, and Z as isoform. An acrylic copolymer obtained by copolymerizing 0 to 80 mol of bornyl methacrylate, wherein methacryloyloxyethyl isocyanate (2-isocyanatoethyl methacrylate) is reacted with a hydroxyl group present in the copolymer. The resulting resin.
[0020]
The above ionizing radiation-curable resin becomes an ionizing radiation-curable resin (light diffraction layer 15) when irradiated with ionizing radiation and cured (reacted) after forming the relief. As the ionizing radiation, ultraviolet (UV), visible light, gamma ray, X-ray, electron beam (EB), etc. can be applied, and ultraviolet (UV) and electron beam (EB) are preferable. The ionizing radiation-curable resin which is cured by ionizing radiation may be added with a photopolymerization initiator and / or a photopolymerization accelerator in the case of ultraviolet curing, and may not be added in the case of electron beam curing with high energy. If a suitable catalyst is present, it can be cured by thermal energy.
[0021]
The light diffraction layer 15 is formed by dissolving or dispersing the above-described material in a solvent and adding an appropriate additive to the composition ink, using a printing method such as gravure printing or screen printing, or rolute, reverse roll coating, or the like. What is necessary is just to apply by a coating method, such as a gravure coat, a reverse gravure coat, and a bar coat, and to heat and dry at 30 degreeC-120 degreeC. The thickness after drying is preferably about 0.1 to 20 μm, more preferably 0.5 to 10 μm.
[0022]
(Formation of Relief) Next, a relief is formed on the light diffraction layer 15 having the layer structure of the transfer substrate 11, the release layer 13, and the light diffraction layer 15. The relief has a surface uneven pattern (light diffraction pattern) capable of reproducing a two-dimensional or three-dimensional image. A hologram or diffraction grating in which the intensity distribution of the light of the interference fringes due to the interference between the object light and the reference light is recorded in an uneven pattern can be used as the surface uneven pattern. Examples of holograms include Fresnel holograms, Fraunhofer holograms, lensless Fourier transform holograms, laser holograms such as image holograms, white light holograms such as rainbow holograms, and color holograms, computer holograms, and holograms utilizing these principles. Displays, multiplex holograms, holographic stereograms, holographic diffraction gratings, etc.
[0023]
Examples of the diffraction grating include a holographic diffraction grating using a hologram recording unit. In addition, an arbitrary diffraction light can be obtained based on a calculation by drawing the diffraction grating using an electron beam lithography device or the like. Diffraction gratings that can be used. These holograms and / or diffraction gratings may be recorded singly or multiplexed, or may be recorded in combination.
[0024]
Usually, the shaping is performed by pressing (so-called embossing) a stamper (metal plate or resin plate) having a relief formed on the surface of the light diffraction layer 15 and forming the relief on the light diffraction layer 15 (replication). After that, the stamper is peeled off. The stamper that duplicates the relief can use the master itself, but because of the risk of wear and damage, apply a metal plating or ultraviolet curable resin to the master and irradiate it with ultraviolet light to cure it, as with analog records. By a method such as peeling and peeling (referred to by those skilled in the art as the 2P method), replication is performed using a metal or resin, and commercial replication is performed using a replicated mold (stamper).
[0025]
The method of commercial duplication is to irradiate with ionizing radiation after embossing the surface of the optical diffraction layer 15 and duplicating the relief using a stamper of a mold or a resin, or to irradiate with ionizing radiation during embossing. Then, the relief is duplicated by peeling off the stamper. This commercial duplication can be performed in a continuous manner, so that a continuous duplication operation can be performed.
[0026]
The surface of the light diffraction layer 15 is irradiated with ionizing radiation during or after embossing with a stamper, or during and after embossing, to cure the ionizing radiation-curable resin. As the ionizing radiation, ultraviolet (UV), visible light, gamma ray, X-ray, electron beam (EB) and the like can be applied, and ultraviolet (UV) is preferable.
The electron beam (EB) irradiation irradiates an electron beam generated by an electron beam accelerator. The irradiation amount of the electron beam is usually about 100 to 1000 keV, preferably about 100 to 300 keV. If the irradiation amount is less than 0.5 Mrad, unreacted monomers may remain and curing may be insufficient.If the irradiation amount exceeds 20 Mrad, the crosslink density increases and the cured binder or base material is hardened. May be damaged. In addition, the atmosphere during the curing is performed at an oxygen concentration of 500 ppm or less, and usually preferably at about 200 ppm.
[0027]
A high-pressure mercury lamp or a metal halide lamp can be used as an ultraviolet (UV) lamp for irradiating ultraviolet rays. The wavelength of the ultraviolet rays is about 200 to 400 nm, and the wavelength may be appropriately selected according to the ultraviolet-curable resin composition. The amount of irradiation may be in accordance with the material and amount of the composition, the output of the UV lamp, and the processing speed. Preferably, the wavelength of the ultraviolet light is 300-400 nm.
[0028]
(Transparent Reflection Layer) The transparent reflection layer 17 is provided on the transparent reflection layer 17 on the relief on the surface of the light diffraction layer 15 provided with a relief structure such as a hologram or a diffraction grating, so that a reproduced image of a hologram and / or a diffraction grating can be formed. It will be clearly visible. As the transparent type reflection layer 17, a transparent metal compound having a difference in refractive index from the surface of the light diffraction layer 15 is used. Since the optical refractive index is different from that of the light diffraction layer, a relief such as a hologram can be visually recognized in almost colorless and transparent hue and without metallic luster. The effect of the refractive index of the transparent reflection layer 17 is increased as the difference in the refractive index from the surface of the light diffraction layer 15 increases, and the difference in the refractive index is 0.3 or more, preferably 0.5 or more, and more preferably 1 or more. 0.0 or more. For example, ZnS, TiO _Two , Al _Two O _Three , Sb _Two O _Three , SiO, TiO, SiO _Two , ITO, etc. can be applied, preferably ITO or tin oxide, each having a refractive index of 2.0, and having a sufficient difference in refractive index. The term “transparent” means that visible light can be sufficiently transmitted, and includes colorless or colored and transparent.
[0029]
The above-mentioned metal or the formation of the transparent metal compound can be obtained by a vacuum thin film method such as a vapor deposition method, a sputtering method, or an ion plating method so that the thickness is about 10 to 2000 nm, preferably 100 to 1000 nm. . If the thickness of the transparent reflection layer 17 is less than this range, light is transmitted to some extent and the effect is reduced, and if it is more than that, the reflection effect does not change, so that cost is wasted.
[0030]
(Adhesive Layer) As the adhesive layer 19, a heat-adhesive adhesive or a pressure-sensitive adhesive (also referred to as a pressure-sensitive adhesive), which is melted or softened by heat and adheres, can be applied. Examples of the heat bonding type adhesive include an ionomer resin, an acid-modified polyolefin resin, an ethylene- (meth) acrylic acid copolymer, an ethylene- (meth) acrylate copolymer, a polyester resin, a vinyl resin, Acrylic resin, acrylate resin, maleic acid resin, butyral resin, alkyd resin, polyethylene oxide resin, polyurethane resin, silicone resin, rubber resin, etc. can be applied, and these resins can be used alone or in combination. use.
[0031]
The resin of the adhesive layer 19 is preferably an acrylic resin, a butyral resin, or a polyester resin in terms of adhesive strength and the like. The thickness of the adhesive layer 17 is usually about 0.2 to 10 μm, preferably 0.5 to 5 μm. If the thickness of the adhesive layer 19 is less than this range, the adhesive force with the transfer receiving body is insufficient and the adhesive layer 19 falls off. In addition, the heat of the thermal head is wasted. Furthermore, additives such as a filler, a plasticizer, a coloring agent, and an antistatic agent may be appropriately added to the adhesive layer 19 as necessary. As a filler, extender pigments such as silica and calcium carbonate can be applied. In particular, the addition of the extender improves foil breakage.
[0032]
Next, the material of the card body will be described.
(Card base material) The card base material 21 used for a print recording medium such as a commuter pass is the same as the base material used for a conventional commuter pass or the like medium, and has mechanical strength that can withstand repeated use, Various materials can be applied depending on applications as long as they have chemical properties, solvent resistance, heat resistance enough to withstand production, and the like. For example, papers such as high quality paper, OCR paper, carbonless paper, and art paper, vinyl chloride resins, polyester resins such as polyethylene terephthalate (abbreviated as PET), and polyethylene naphthalate can be used.
[0033]
The base film may be a copolymer resin containing these resins as a main component, a mixture (including an alloy), or a laminate including a plurality of layers. The base film may be a stretched film or an unstretched film, but is preferably a film stretched uniaxially or biaxially for the purpose of improving strength. Usually, polyester films such as polyethylene terephthalate and polyethylene naphthalate, vinyl films such as polyvinyl chloride, and the like, are suitably used in view of mechanical strength and cost, and polyethylene terephthalate is most suitable.
[0034]
The base film is subjected to corona discharge treatment, plasma treatment, ozone treatment, flame treatment, primer (also referred to as anchor coat, adhesion promoter, and easy-adhesive) treatment, pre-heat treatment, and dust removal prior to application. An easy adhesion treatment such as a treatment, a vapor deposition treatment, and an alkali treatment may be performed. Further, the resin film may optionally contain additives such as a filler, a plasticizer, a coloring agent, and an antistatic agent. An extender such as silica or calcium carbonate can be used as the filler. In the present invention, a base material colored white with a pigment such as titanium oxide is used as a coloring agent in order to increase contrast with printing. As the antistatic agent, a nonionic surfactant, an anionic surfactant, a cationic surfactant, a polyamide, an acrylic acid derivative, or the like can be used.
[0035]
The thickness of the card base material 21 may be any thickness as long as the overall rigidity is appropriately maintained. Usually, about 50 to 500 μm can be applied, but 100 to 400 μm is suitable, and 150 to 300 μm is optimal. For example, in the case of PET, it is about 190 to 260 μm. If the thickness is more than this, it is too stiff and is inconvenient to carry, and the cost is high.If it is less than this, wrinkles, kinks or magnetic reading failure may occur due to repeated use or external force during carrying. I do. There is no particular limitation on the size, but at least up to the step of transferring the transfer foil, a large-sized sheet capable of imposing a plurality of times the commuter pass size, or a long continuous winding body. Then, the size after the transfer may be appropriately cut and used as necessary, and may be finally cut to the commuter pass size.
[0036]
(Magnetic Recording Layer) The magnetic recording layer 23 reads a recorded signal by contacting with a magnetic head as shown in an automatic ticket gate of a commuter pass or the like, and confirms that the certificate is genuine or that the certificate is valid. This is to determine that the magnetic oxide is a magnetic oxide dispersed in a binder, or a thin film formed by vapor deposition or sputtering of a magnetic metal. In the case of visual confirmation other than automatic ticket inspection, the magnetic layer may not be provided.
The magnetic recording layer 23 is made of γ-Fe _Two O _Three , Fe _Three O _Four , CrO _Two This is a composition in which conventionally known magnetic fine particles such as Fe, Fe-Cr, Fe-Co, Co-Cr, Co-Ni, MnAl, Ba ferrite, and Sr ferrite are dispersed in a binder. Using a composition ink obtained by dispersing or dissolving the composition in a solvent or the like, the composition ink is applied onto the card substrate 21 by a known coating method, dried, and, if necessary, heated to a temperature of 30 ° C. It may be formed by aging at a temperature of 70 ° C. to 70 ° C. or by irradiating ionizing radiation (ultraviolet rays, electron beams, etc.) as appropriate. As the coating method, for example, roll coating, reverse roll coating, transfer roll coating, gravure coating, gravure reverse coating, comma coating, rod coating, blade coating, bar coating, wire bar coating, die coating and the like can be applied. When the magnetic recording layer 23 is formed by the coating method, the thickness is 1 to 100 μm, preferably about 5 to 20 μm.
[0037]
Furthermore, the magnetic recording layer 23 is formed of a metal or alloy such as Fe, Fe-Cr, Fe-Co, Co-Cr, Co-Ni by a method such as a vacuum evaporation method, a sputtering method, an ion plating method, and a plating method. Can be formed on the card base material 21. When formed on a base material by these methods, the thickness of the magnetic recording layer 23 is 100 Å to 1 μm, and preferably about 500 to 2,000 Å.
[0038]
Note that γ-Fe _Two O _Three Examples of the binder material in which the magnetic fine particles are dispersed include butyral resin, vinyl chloride / vinyl acetate copolymer resin, urethane resin, polyester resin, cellulose resin, acrylic resin, and styrene / maleic acid copolymer resin. A rubber-based resin such as nitrile rubber or a urethane elastomer can be added as needed. Further, if necessary, a surfactant, a silane coupling agent, a plasticizer, a wax, a silicone oil, carbon, and other additives can be used.
[0039]
A bar code may be provided on the surface of the magnetic recording layer 23 of the card base 21. The bar code usually includes a magnetic bar containing a magnetic material and a dummy bar containing no magnetic material in order to improve security. These barcodes are all visually observed as black barcodes. However, when read with a magnetic head, the barcode is different and cannot be easily forged.
[0040]
(Other Layers) Various information and patterns may be printed on the surface of the magnetic recording layer 23 of the card substrate 21. A printing layer 27 and a protective layer 29 may be provided on the surface of the magnetic recording layer 23 of the card substrate 21 via a primer layer 25 as necessary. As the primer layer 25, for example, polyurethane, polyester, polyvinyl chloride resin, polyvinyl acetate resin, vinyl chloride-vinyl acetate copolymer, acrylic resin, A polyvinyl alcohol resin, a polyvinyl acetal resin, a copolymer of ethylene and vinyl acetate or acrylic acid, an epoxy resin, or the like can be used.
[0041]
These resins are appropriately dissolved or dispersed in a solvent to form a coating solution, applied by a known coating method, and dried to form a primer layer 35. In addition, after appropriately combining a resin, a monomer, an oligomer, a prepolymer, and the like, a reaction initiator, a curing agent, a crosslinking agent, or a combination of a main agent and a curing agent, applying and drying, and then drying or drying. May be formed by reacting by the aging treatment. The thickness of the primer layer 25 is about 0.05 to 10 μm, preferably 0.1 to 5 μm.
[0042]
(Printing layer) As the printing layer 27, various information such as usage, precautions, warnings, and issuing company names are printed by known printing methods such as gravure printing, screen printing, and offset printing, and coating methods. Is done. Preferably, offset printing is used in terms of cost and simplicity.
[0043]
(Protective Layer) As the protective layer 29, the same ink as the print layer 27 and colorless can be used, and a thermosetting resin or a reactive resin that is cured by heat or ultraviolet rays is preferable from the viewpoint of durability. As the thermosetting resin or the reactive resin, those having a molecular weight of 200,000 or less in the state of a coating liquid, and having a molecular weight of infinity due to a reaction such as condensation and addition by heating and humidifying after coating and drying are preferable. is there. Among these resins, those which do not soften or melt before the resin is thermally decomposed are preferable. Specifically, for example, an epoxy resin, a polyurethane resin, a polyester resin, a polyurethane polycarbonate resin, a urea resin, a melamine resin, an alkyd resin, a silicon resin, an acrylic reaction resin (an electron beam curing resin), an epoxy-polyamide resin, and a nitrocellulose melamine Resin, mixture of high molecular weight polyester resin and isocyanate prepolymer, mixture of methacrylate copolymer and diisocyanate prepolymer, mixture of polyester polyol and polyisocyanate, mixture of low molecular weight glycol / high molecular weight diol / triphenylmethane triisocyanate And mixtures thereof.
[0044]
These resins are appropriately dissolved or dispersed in a solvent to form a coating liquid (ink), applied by a known printing method and coating method, and dried to form a protective layer 29. In addition, after appropriately combining a resin, a monomer, an oligomer, a prepolymer, and the like, a reaction initiator, a curing agent, a crosslinking agent, or a combination of a main agent and a curing agent, applying and drying, and then drying or drying. May be formed by reacting by the aging treatment. The thickness of the protective layer 29 is about 0.5 to 30 μm, preferably 1 to 10 μm.
[0045]
(Laminate transfer) Here, a production method for continuously transferring a roll-shaped transfer foil to a roll-shaped card main body will be described. The card body is not limited to winding, but may be a sheet-cut large-sized sheet, and a large-sized sheet may be continuously supplied to perform laminate transfer, and an effect similar to laminate transfer by winding can be obtained.
FIG. 3 is an explanatory diagram for explaining a state of transfer of the transfer layer of the transfer foil to the card body. FIG. 3 (A) shown in FIG. 3 is a transfer foil 1, which is transferred to the card body 3 of FIG. 3 (B), and the transfer base material 11 is peeled and removed. The transfer layer of the transfer foil 1 is transferred to the card base material 21 as shown in FIG. That is, the configuration is such that the release layer 13 / the light diffraction layer 15 / the transparent reflection layer 17 / the adhesive layer 19 / the card substrate 21 / the magnetic recording layer 23.
[0046]
FIG. 4 is an explanatory diagram illustrating a conventional transfer method.
FIG. 5 is an explanatory diagram illustrating a transfer method used in the present invention.
(Conventional Transfer) The hot stamp transfer shown in FIG. 5 is a conventional method. The card body 3 and the surface of the adhesive layer 19 of the transfer foil 1 are overlapped, and a heated mold called a stamper is pressed from the transfer foil 1 side. The adhesive layer 19 of the transfer foil 1 is softened or melted and adheres to the card substrate 21. Then, by peeling and removing the transfer base material, only the transfer layer is transferred and transferred to the card side. However, in the conventional method, it is necessary to make a stamper every time according to the application, and there is a problem that the transfer speed is extremely low because the transfer is performed one by one, so that mass production cannot be performed at low cost. .
[0047]
Therefore, in the present invention, as shown in FIG. 5, a method of continuously transferring the entire surface is adopted. The transfer foil 1 is unwound in a continuous web form from a long strip-shaped winding of the supply unit 41. On the other hand, the card body 3 is likewise fed from the long belt-like winding of the supply unit 42 into a continuous web. The surface of the adhesive layer 19 of the transfer foil 1 fed out in a web shape and the surface of the card base material 21 of the card body 3 are overlapped and sandwiched between the heating roll 45 and the receiving roll 47. To run. The transfer substrate 11 of the transfer foil 1 is peeled off at the peeling section 51 released from the heating and pressurizing of the roll, and the peeled transfer substrate 53 is wound up by the winding section 49. By doing so, the transfer operation can be performed extremely stably, efficiently, and inexpensively by continuous operation in the winding state using an existing simple thermal laminator.
[0048]
After the transfer, the laminate of FIG. 3C is obtained. The following processing is performed on the release layer 13 surface and the magnetic recording layer 23 surface of the laminate. The processing may be performed in a wound form or a large sheet on which a plurality of cut cards can be imposed. On the surface of the magnetic recording layer 23, a printing layer 27 and a protective layer 29 are further formed via a primer layer 25 as necessary. The formation of the primer layer 25, the printing layer 27, and the protective layer 29 may be performed in the same manner as described in the description of the card body 3, and is performed before or after the transfer. What is necessary is just to select suitably according to a quantity, a use, a delivery date, etc.
[0049]
On the surface of the release layer 13, a heat-sensitive printing layer 33, an offset printing layer 35, and an OP layer 37 as necessary are formed via a primer layer 31.
(Primer layer) The primer layer 31 is formed of, for example, polyurethane, polyester, polyvinyl chloride resin, polyvinyl acetate resin, or vinyl chloride-acetic acid in order to improve the adhesion between the release layer 13 and the thermal printing layer 33. A vinyl copolymer, an acrylic resin, a polyvinyl alcohol-based resin, a polyvinyl acetal resin, a copolymer of ethylene and vinyl acetate or acrylic acid, an epoxy resin, or the like can be used.
[0050]
These resins are appropriately dissolved or dispersed in a solvent to form a coating solution, which is applied to the release layer 13 by a known coating method and dried to form the primer layer 13. In addition, after appropriately combining a resin, a monomer, an oligomer, a prepolymer, and the like, a reaction initiator, a curing agent, a crosslinking agent, or a combination of a main agent and a curing agent, applying and drying, and then drying or drying. May be formed by reacting by the aging treatment. The thickness of the primer layer 31 is about 0.05 to 10 μm, preferably 0.1 to 5 μm. Preferably, it is RL primer (trade name, manufactured by The Inktech Co., Ltd.).
[0051]
(Thermal Printing Layer) The thermal printing layer 33 is printed by the material in the thermal printing layer 33 reacting and discoloring with the heat of the thermal head of the thermal printer described later. Examples of the material system of the thermal printing layer 33 include (1) leuco dye system, (2) polymer / organic low molecular dispersion system, and (3) liquid crystal system. To leuco dyes are preferred. In the case of the leuco dye system, the coloring / decoloring is based on a combination of a leuco dye and an acidic compound, and a heat-sensitive printing layer is formed by a composition in which these compounds are mixed with a polymer binder. There are competitive reaction systems using amphoteric compounds and phase separation systems using long-chain alkyl acidic compounds.
[0052]
In actual use, rather than performing special cooling, usually, a thermal head is used to raise the temperature instantaneously for a time on the order of 1/1000 second and then heat it, and then cool it at room temperature to obtain "quick cooling." Can be realized, and the system as described above can be colored. In addition, as for "cooling down", if cooling after heating using a heating means having a large heat capacity such as a heat roller, a hot stamp, a heater bar, etc., since a given amount of heat is large, "cooling down" is realized, Can be erased. In some cases, erasing with a thermal head is also possible by selecting the heating temperature and conditions. In the case of such a leuco-based material, by appropriately selecting the type of the leuco dye, it is possible to obtain various colors such as black, blue, and red. Black is preferable because the contrast with the base can be increased.
[0053]
These are dispersed and dissolved in a solvent to form a composition coating liquid (ink), which is applied and dried by a known printing method such as gravure printing or sicrine printing, or a coating method such as roll coating or comma coating. Its thickness is usually about 1 to 10 μm, preferably about 1 to 5 μm. The area ratio of the heat-sensitive printing layer 33 may be provided on the entire surface of the card substrate 21 or on a part thereof.
[0054]
(Offset Printing Layer) The offset printing layer 35 is a printing layer printed by a known offset printing method, and is preferably UV offset printing cured by ultraviolet rays (UV). Offset printing is the most common printing method, and can print a fine image even in a small lot at low cost. In order to firmly adhere to the surface of the thermal printing layer 33, an offset printing layer 35 may be provided via a primer layer. As the primer layer, a material and an application method similar to those of the primer layer 25 described above may be used. The printing ink used for the printing contains at least a vehicle and a coloring agent. The colorant contains at least one of an inorganic pigment and an organic pigment. In addition, special pigments such as a fluorescent pigment and an infrared absorbing pigment may be used, and an ink having a free color tone can be obtained.
If necessary, additives such as an initiator, a curing agent, a filler, a plasticizer, a dispersant, a lubricant, an antistatic agent, an antioxidant, and an antifungal agent are appropriately added to the ink composition. May be. These compositions are dispersed and kneaded, and if necessary, the solid content and the viscosity are adjusted with a solvent to obtain an ink composition. The ink may be printed by the printing method described above, dried, and optionally formed by aging at a temperature of 30 ° C. to 70 ° C. or irradiating with ionizing radiation (ultraviolet rays, electron beams) as needed.
[0055]
The hue of the offset printing layer 35 may be any hue, but it is preferable that the printed picture such as the tint block, the pattern, and the logo does not completely hide the printed image printed on the underlying heat-sensitive printing layer 33. When the printing pattern of the offset printing layer 35 is an opaque color, it is about 5 to 60%, preferably 10 to 50% of the area. When the printed pattern is transparent, the area is about 5 to 90%, preferably 10 to 70% of the area. As the offset printing layer 35, it is preferable to form a pattern composed of fine lines, a symbol such as a company emblem, and a character such as a company name by printing on one surface from the viewpoint of suppressing forgery. Moreover, you may form by providing several different patterns.
[0056]
(OP Layer) The OP layer 37 may be provided on the offset printing layer 35 as necessary. In particular, commuter passes have a long service life of up to six months, and pass through ticket gates more than a thousand times including transfers. The commuter pass in the ticket gate is rubbed in contact with a magnetic head, a transport belt, a roller, or the like for reading the magnetic recording layer 23, and the surface is scraped or stained. In order to prevent this, an OP layer 37 is provided. The OP layer 37 is formed by adding liquid paraffin, wax, polyethylene wax, silicone resin particles, fluororesin particles, or the like to the OP ink for UV offset or the OP ink to a thickness of 0.1 after drying. It may be applied as very thin as about 1 μm. Further, liquid paraffin, wax, or the like may be directly applied.
[0057]
As described above, a print recording medium having light diffractive layers provided on both surfaces although not shown in FIG. 1, FIG. 2, or not shown is obtained. This may be cut into commuter pass standard dimensions, for example, if it is a commuter pass according to the application. The cutting can be performed by a known punching method using a die. The present invention basically has the above-described configuration, but may have some modifications. In the above example, the magnetic recording layer is provided on the lower surface of the base material. However, a magnetic recording layer may be provided separately or in place of the magnetic recording layer. In addition, it can be applied not only to commuter passes, but also to various uses such as admission tickets, canteen dining tickets, passport certificates, score cards, etc., and should be configured using a base material suitable for each use Can be.
[0058]
(Information printing method) Printing is performed by heating the thermal printing layer 33 in the form of dots from the surface of the OP layer 37 with a thermal head of a thermal printer. The printing is performed by outputting desired individual information such as a validity item, a boarding section, a name, an age, and the like from a computer terminal in the case of a proof item of a certificate or a commuter pass. In addition, if such desired individual information is also recorded on the magnetic recording, by comparing both the information on the printed display and the information on the magnetic recording, the fact of forgery or falsification can be confirmed, and the security can be enhanced.
For the individual information, a hot-melt transfer printer (also called a hot-melt printer or a heat-transfer printer), which is a conventional printing method, uses a hot-melt ink ribbon, but the present invention does not require an ink ribbon, and thus costs are reduced. cheap.
[0059]
(Thermal Printer) In a thermal printer, a thermal print head (hereinafter, referred to as a printer head or a thermal head) and a platen roller face each other, and a print recording medium is sandwiched between these. These are pressed against the printer head by a rotating platen roller, and travel in accordance with the rotation. The thermal printing layer 33 is heated and printed via the offset printing layer 35 and the OP layer 37 provided thereon. Then, the heating element corresponding to the image of the printer head generates heat, and the selectively heated thermosensitive printing layer develops a dot-like color, thereby printing (displaying) a predetermined information image. The printing method includes a serial method and a line method, both of which are applicable. The printer head includes a laser heat mode thermal head, a photothermal recording head, a thermal head and the like, and any of them can be applied, but a thermal head is preferable. A thermal head is the most general printer head that prints information by causing a dot-like heating element to generate heat in accordance with an information signal and heating a thermosensitive printing layer. The resolution of the printer head is not limited, and may be appropriately selected according to the size of information to be printed. Usually, it is 10 dpi or more, preferably 100 dpi or more.
[0060]
(Print Density) A predetermined information image is printed (displayed) by being heated in the form of dots by the thermal printer described above. Necessary items of the thermal printing layer 33 may be appropriately selected depending on the intended use. If the use is a commuter pass, necessary items include at least a validity period, a boarding section, and a name. In addition, since the matter may be visually checked by a station staff or a crew, a certain print density is required, and the PCS value of the print is 0.5 or more, preferably 0.75 or more. When the PCS value is 0.5 or less, it is difficult to visually recognize, and when the PCS value is 0.75 or more, machine reading can be performed with a barcode reader or the like.
In the present invention, the contrast is enhanced by adopting a configuration in which the underlayer of the print formed by the heat-sensitive print layer scatters light as much as possible. In other words, the PCS value was secured by making a transparent light diffraction layer, a white card base material, and a partial printed pattern, and by making a difference between the printed pattern and the printed pattern.
[0061]
The readability of the (PCS value) display refers to the PCS value, which is a reference when a barcode that is frequently used in merchandise management is read by a reading device (barcode reader). The higher the contrast between the white bar (base) and the black bar (display) of the barcode, the easier it is to read with a barcode reader. Therefore, as for the optical characteristics of the barcode, the amount of a PCS value (Print Contrast Signal) is defined in JIS-X-0501 and X-0502, and the PCS value must be a certain value or more. It is prescribed. The PCS value refers to the reflection of the white bar and the margin when the A light source specified in JIS-Z-8720 is irradiated at an incident angle of 45 ° with respect to the normal of the bar code symbol surface of the bar code. It is calculated from the ratio and the reflectance of the black bar. Assuming that the reflectance of the white bar and the margin is RL and the reflectance of the black bar is R0, the PCS value is defined as: (RL-R0) / RL. JIS-X-0501 specifies the minimum PCS value required as a barcode symbol for common products as a function of the reflectance of the white bar, and JIS-X-0502 uses a white bar as a barcode symbol for logistics products. The required minimum PCS value is specified as a fixed value of 0.75 as a looser standard than JIS-X-0501 because it can be a base color of cardboard or the like. The PCS value is measured using a Macbeth PCM-2 reflection densitometer (trade name, manufactured by Macbeth).
[0062]
【Example】
(Example 1)
(A) Step of preparing a long band-shaped white card base material having a magnetic recording layer on at least one surface
(Preparation of Card Body 3) A composition ink having the following composition was applied to the treated surface of white polyethylene terephthalate E20 (manufactured by Toray Industries, Inc., one-sided easy adhesion treatment) having a thickness of 188 μm by gravure reverse coating to have a thickness after drying. It was applied to a thickness of 10 μm, dried, and further aged at 80 ° C. for 3 days to form a magnetic recording layer 23, thereby forming a card body 3. The card body 3 is also a long winding body.

[0063]
(B) Separately, a step of forming a transfer foil in which at least a release layer, a light diffraction layer, a transparent reflection layer, and an adhesive layer are sequentially laminated on one surface of a transfer base material
First, Lumirror T60 (manufactured by Toray Industries, Inc., polyester film trade name) having a thickness of 25 μm was used as the transfer substrate 11. On one surface, a release varnish 45-3 (trade name of an acrylic resin release ink manufactured by Showa Ink Co., Ltd.) was diluted with a solvent so as to have a solid content of 10% by mass, and dried by a roll coating method. The coating was applied to a thickness of 1 μm and dried to form a release layer 13. The release layer 13 was diluted with a solvent so as to have a solid content of 25% by mass of Yupimer LZ065 (manufactured by Mitsubishi Chemical Corporation, UV curable resin trade name resin), and the thickness after drying was determined by a reverse roll coating method. The coating was dried to a thickness of 3 μm and dried to form a light diffraction layer 15. A relief is formed on the surface of the light diffraction layer 15 by pressing (embossing) the stamper. From a master hologram separately created using a laser beam, a stamper duplicated by the 2P method is attached to an empos roller of a duplicating apparatus, and heated and pressed (embossed) at 150 ° C. with an opposing roller to produce fine irregularities. The relief consisting of the pattern was shaped. Immediately after the shaping, ultraviolet light having a wavelength of 200 to 400 nm was irradiated with a high-pressure mercury lamp for curing. Zinc sulfide was deposited on the surface of the light diffraction layer 15 by a vacuum deposition method so as to have a thickness of 400 nm to form a transparent reflection layer 17. The surface of the transparent reflective layer 17 was diluted with a solvent so that the vinyl chloride vinyl acetate copolymer was 25% by mass and the microsilica was 25% by mass, and the thickness after drying was 2 μm by gravure printing. Then, the entire surface was applied and dried to form an adhesive layer 19, whereby a transfer foil 1 was obtained. The transfer foil 1 is a long wound body.
[0064]
(C) laminating the transfer foil on at least one entire surface of the card base material and peeling off only the transfer base material of the transfer foil
The card body 3 is unwound from the supply unit 43 shown in FIG. 4, the transfer foil 1 is unwound from the supply unit 41, and the PET surface of the card body 3 and the adhesive layer 19 surface of the transfer foil 1 are set at 150. The transfer roll 11 was peeled off and removed only by pressure bonding between the heating roll 45 heated at a temperature of 45 ° C. and the receiving roll 47.
[0065]
(D) forming a thermal printing layer via a primer layer on an exposed release layer of the release layer, the light diffraction layer, the transparent reflection layer and the adhesive layer transferred to the card base material;
Next, the primer layer composition ink having the following composition is applied to the surface of the release layer 13 exposed by peeling the transfer base material 11 by a roll coating method so that the thickness after drying is 1 μm, and dried. Further, aging was performed at 50 ° C. for 2 days to form a primer layer 31.

Subsequently, a heat-sensitive printing layer composition ink having the following composition is applied to the surface of the primer layer 31 by a reverse roll coating method so that the thickness after drying becomes 3 μm, dried, and then aged at 50 ° C. for 2 days. Thus, a thermal printing layer 33 was formed.
As a thermal printing composition ink, first, 25 parts of 3-di-n-butylamino-6-methyl-7-anilinofluoran were pulverized with a 2.5% aqueous solution of polyvinyl alcohol in 80 parts by a ball mill for 24 hours to obtain a dye. A precursor dispersion was obtained. Next, 63 parts of 4'-hydroxy-n-heptaneanilide was ground together with 200 parts of a 2.5% aqueous solution of polyvinyl alcohol in a ball mill for 24 hours to obtain a reversible developer dispersion. The resulting two dispersions were mixed, and 130 parts of a 10% aqueous solution of polyvinyl alcohol was added and sufficiently stirred to obtain a thermal printing composition ink.
[0066]
(E) a step of sheet-cutting the long strip-shaped card base material on which the thermal printing layer is formed to form a large-sized sheet state on which a plurality of cards are imposed;
A long sheet was cut into a large-sized state in which a plurality of cards were imposed by a known sheet cutting machine. Then, on the surface of the magnetic recording layer 23 of the card body 3, a precautionary statement for use was printed with a known white gravure ink by a gravure printing method to form a print layer 27. The protective layer 29 was formed on the entire surface of the printing layer 27 by gravure printing using a colorless printing layer 27 ink from which a white colorant had been removed.
[0067]
(F) forming a printing layer on the thermal printing layer by an offset printing method via a primer layer as necessary
On the surface of the heat-sensitive printing layer 33, a primer layer composition ink having the following composition was applied by a roll coating method so that the thickness after drying was 1 μm, dried, and then aged at 50 ° C. for 2 days. And a primer layer was formed.

Subsequently, the company name and logo were defaulted on the primer layer surface by a UV offset printing method using yellow, red, indigo, and black UV carton inks (trade name of UV offset ink manufactured by The Inktech Co., Ltd.). The camouflage pattern is printed to form an offset printing layer 35, and at the same time, using a colorless UV Carton OP ink (a brand name of UV offset ink manufactured by The Inktech Co., Ltd.), a UV offset printing method is applied to the entire surface. After printing to form the OP layer 37, the layer was cured by irradiation with ultraviolet rays.
[0068]
(G) Process of punching out to card size to make a card
Next, the laminated base material was punched into a commuter pass size to obtain a print recording medium of Example 1.
[0069]
(Example 2)
As a material of the light diffraction layer, SUZ600 (trade name of ultraviolet curable resin, manufactured by The Inktec Co., Ltd.) was used instead of Iupimer LZ065, and a master drawn by using an electron beam separately as a stamper for forming a relief. Printing of Example 2 was performed in the same manner as in Example 1 except that a stamper duplicated by the 2P method was used from a master relief made using a diffraction grating, and zinc sulfide was used as a material of the transparent reflection layer 17. A recording medium was obtained.
[0070]
(Issuance of test) The print recording media of Example 1 and Example 2 were test-issued by a commuter pass test issuing machine. Individual information such as the name of the boarding station, the name of the getting off station, the expiration date, and the name are recorded on the magnetic recording layer, and at the same time, the printing energy of 0.6 mj / dot is applied to the thermal printing layer by the thermal printer. The individual information of the expiration date and name could be printed, and it could be sufficiently read visually.
[0071]
(Evaluation) The printing was good, and the PCS value of both the print recording media of Example 1 and Example 2 was 0.55, and it could be visually read well. Further, even when the print recording media of Example 1 and Example 2 were copied using a color copying machine, the hologram or the diffraction grating portion was not reproduced, and the copy was a fake at a glance. Further, in order to falsify the expiration date, an attempt was made to erase with an eraser, but since the print was located in the middle of the laminate, it could not be erased and could not be falsified. Furthermore, when the print recording medium was passed through an automatic ticket gate tester, the gate opened and magnetic information was read normally.
[0072]
【The invention's effect】
According to the thermal printing recording medium such as a commuter pass of the present invention, (1) the design of the image of the light diffraction layer and the security are improved, and the printing layer such as the tint block is provided on the light diffraction layer to further enhance the security. (2) A thermal printing recording layer is provided on the light diffraction layer via a primer layer to enhance the durability with a strong adhesive force. (3) Individual variable information is applied to the thermal printing recording layer by a thermal printer. It can be printed, and has high contrast with the base and is easy to read.
In addition, depending on the application to be used, necessary desired items can be appropriately selected and variably printed on the thermal printing layer 33. Since the PCS value of the print is high, it can be sufficiently visually recognized and can be read by a machine.
Furthermore, if at least one piece of printed individual information is also recorded on an invisible magnetic record, by comparing the printed display information with the magnetically recorded information, it is possible to confirm the fact of forgery or falsification, and to further improve security. Can be enhanced.
[0073]
According to the manufacturing method of the thermal printing recording medium of the present invention, in existing equipment, raw cards having both high designability and security can be mass-produced in advance, and holograms with high security, but expensive and difficult to use, It can be applied at low cost.
Further, since the wording of the printing layer, the offset printing layer, and the like is different for each issuing company, the production efficiency is extremely poor when manufacturing is performed from the first process for each company. However, according to the present invention, the functional part as a print recording medium, once excluding individual information and pictures, is mass-produced, and one part thereof is used. Since the printing of individual information for each issuing company and the offset printing layer of the tint block and picture can be individually manufactured, the production efficiency is extremely high.
[Brief description of the drawings]
FIG. 1 is a sectional view of a print recording medium showing one embodiment of the present invention.
FIG. 2 is a sectional view of a print recording medium showing another embodiment of the present invention.
FIG. 3 is an explanatory diagram for explaining a transfer state of a transfer layer of a transfer foil to a card body.
FIG. 4 is an explanatory diagram illustrating a conventional transfer method.
FIG. 5 is an explanatory diagram illustrating a transfer method used in the present invention.
[Explanation of symbols]
1 Transfer foil
3 Card body
11 Transfer substrate
13 Release layer
15 Light diffraction layer
17 Transparent reflective layer
19 Adhesive layer
21 Card base material
23 Magnetic recording layer
25 Primer layer
27 Printing layer
29 Protective layer
31 Primer layer
33 Thermal printing layer
35 offset printing layer
37 OP layer
41, 43 supply unit
45 heating roll
47 Receiving roll
49 Winding unit
51 Isolation unit
53 Transferred base material
55 transfer layer

Claims (5)

(A) a step of preparing a long strip-shaped white card substrate having a magnetic recording layer on at least one surface; and (b) separately, at least a release layer, an optical diffraction layer, (C) laminating the transfer foil over at least one entire surface of the card base material, and forming only a transfer base material of the transfer foil; And (d) forming a heat-sensitive print layer on the exposed release layer of the release layer, the light diffraction layer, the transparent reflection layer, and the adhesive layer transferred to the card base material via a primer layer. Forming; (e) cutting the long strip-shaped card base material on which the heat-sensitive printing layer is formed into a large-sized sheet on which a plurality of cards are imposed; Offset printing on the printing layer, if necessary, via the primer layer In forming a printing layer, (g) the production method of the thermal print recording medium to the steps of the punched to the card-sized card, characterized in that it consists of. (A) a step of preparing a long strip-shaped white card substrate having a magnetic recording layer on at least one surface; and (b) separately, at least a release layer, an optical diffraction layer, (C) laminating the transfer foil over at least one entire surface of the card base material, and forming only a transfer base material of the transfer foil; And (d) forming a heat-sensitive print layer on the exposed release layer of the release layer, the light diffraction layer, the transparent reflection layer, and the adhesive layer transferred to the card base material via a primer layer. Forming; (e) cutting the long strip-shaped card base material on which the heat-sensitive printing layer is formed into a large-sized sheet on which a plurality of cards are imposed; Offset printing on the printing layer, if necessary, via the primer layer In forming a printing layer, (g) thermal print recording medium, characterized by the manufacturing process from which the stamped to the card-sized card. 3. The thermal printing recording medium according to claim 2, wherein the light diffraction layer is a hologram or a diffraction grating, and desired items are printed on the thermal printing layer by a thermal printer. The said desired item is at least a validity period, a boarding area, and a name, The printing color of the said desired item contains at least black, and the PCS value of the said black is 0.5 or more, The claim 3 characterized by the above-mentioned. Commuter pass. The commuter pass according to claim 3, wherein the printing information and the magnetic recording information are associated with each other.

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