JP3619896B2 - Laminated body having light-reflective substrate - Google Patents
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Description
【０００１】
【発明の属する技術分野】
本発明は、銀行券、株券、有価証券、通行券、パスポート、商品券、カード等の偽造、複写を防止する必要性のある貴重印刷物に適用される、光反射性基材を有する積層体に関するものである。
【０００２】
【従来の技術】
銀行券、株券、有価証券、通行券、商品券、カード等の貴重印刷物は、その性質上、偽造や改竄されないことが要求される。この防止策として、貴重印刷物の表面に光反射性基材を貼付して真偽判別を行っている。光反射性基材は複写防止、複製防止の観点から特に有効な偽造防止エレメントの一つであるため、多くの貴重印刷物に適用されてきている。
【０００３】
しかしながら、多くの貴重印刷物に採用されているがために、偽造、複製されやすくなってきている。近年、カラー複写機の再現性の向上、高度な微細加工技術の向上、また、インターネット等により誰でも光反射性基材の原理を知ることができるようになってきており、一見見ただけでは判別できないほどに再現性の良い光反射性基材が偽造、複製されてきている。このようなことから、更なる偽造防止効果の高いエレメントが要求されてきている。
【０００４】
また光反射性基材は、少数での生産ではコストがかかり過ぎる為、同じ被貼付物には同じ光反射性基材が使われる。そのことが偽造、複製される大きな要因となっている。
【０００５】
カード基材の隠蔽情報表示部上に透明ホログラム及び金属蒸着されたホログラムを粘着剤によって張り合わせ、前記隠蔽情報表示部を透かして見ることを可能とした隠蔽カードが開示されている（特許第２８９４４９２号公報参照）。
【０００６】
表面に光学的に変化する色彩のあるコーティングが備えられており、少なくともコーティングの部分に線型の打ち出し加工があり、見る角度によって色彩を変化させるデータキャリアが開示されている（特表平１１−５０１５９０号公報参照）。
【０００７】
【発明が解決しようとする課題】
従来は、カード基材に貼付する透明の光反射性基材のその基材下に印刷した印刷部を隠蔽カードでは（特許第２８９４４９２号公報参照）、印刷物を透かして見ることができ、顕像構成が平面的で改竄されやすく、また、データキャリアの表明をコーティングし、そのコーティング部に線型を打ち出し加工を施して、色彩を変化させるものは（特表平１１−５０１５９０号公報参照）、特別な加工装置の必要と、少量多種の製造には向かなく、個別情報の付与に難点があった。
【０００８】
本発明では、これら両者の問題点を解決するためになされたもので、微細な形状を有する支持体の表面に、印刷により印刷パターンを設け、支持基材と印刷パターン表面との微細形状の差異がそのまま支持基材の印刷面に貼付した透明性のない光反射性基材の表面に型付けされ、支持基材面に印刷した印刷パターンをその上に貼付した光反射性基材の表面に浮き出させ、その積層体の表面からは微細形状（平滑度）の差異による印刷パターンが改竄できない構造を有する光反射性基材を有する積層体を提案するものである。
【０００９】
また、本発明の積層体に用いる支持基材に、光透過性のある平滑度の低い支持基材を使用した場合、無色透明インキ又は支持基材とほぼ同色のインキで印刷パターンを印刷することにより、裏面から印刷パターンを確認することができないため秘匿性が向上する。更に、本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、支持基材の平滑度とほぼ同等の平滑度を有する第１のインキのインキ皮膜でカモフラージュ模様を設け、カモフラージュ模様の領域内の上側（後刷）又はカモフラージュ模様の領域内の下側（先刷：この場合、印刷パターンとカモフラージュ模様のインキは同色）に、支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、印刷パターン支持体の第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体においても、裏面から観察するとカモフラージュ模様によって第２のインキの印刷パターンを確認することができないため秘匿性が向上する。
【００１０】
【発明を解決しようとする手段】
本発明は、平滑度の低い支持基材上に印刷パターンを設けた印刷パターン支持体と、裏面に接着層を有する光透過性のない光反射性基材であるホログラム又は多重回折格子若しくは薄膜干渉フィルターの光学的変化素子とを、前記印刷パターンを有する面を前記光反射性基材との接着面として貼付した光反射性基材を有する積層体において、前記支持基材上の印刷パターンは、有色インキで印刷し、前記印刷パターンのインキ皮膜は、前記支持基材の平滑度よりも高い平滑度を有し、前記印刷パターン支持体の印刷パターンと印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記光反射性基材上で前記印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上の前記印刷パターンの領域と前記印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記印刷パターンが確認できることを特徴とする光反射性基材を有する積層体である。
【００１１】
また、本発明は、平滑度の低い支持基材上に印刷パターンを設けた印刷パターン支持体と、裏面に接着層を有する光透過性のない光反射性基材であるホログラム又は多重回折格子若しくは薄膜干渉フィルターの光学的変化素子とを、前記印刷パターンを有する面を前記光反射性基材との接着面として貼付した光反射性基材を有する積層体において、前記支持基材上の印刷パターンは、無色透明インキ又は基材とほぼ同色のインキの少なくとも一つ以上で印刷し、前記印刷パターンのインキ皮膜は、前記支持基材の平滑度よりも高い平滑度を有し、前記印刷パターン支持体の印刷パターンと印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記光反射性基材上で前記印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上の前記印刷パターンの領域と前記印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記印刷パターンは無色透明インキ又は基材とほぼ同色のインキのため確認されることがないことを特徴とする光反射性基材を有する積層体である。
【００１２】
また、本発明は、平滑度の低い支持基材上に印刷パターンを設けた印刷パターン支持体と、裏面に接着層を有する光透過性のない光反射性基材であるホログラム又は多重回折格子若しくは薄膜干渉フィルターの光学的変化素子とを、前記印刷パターンを有する面を前記光反射性基材との接着面として貼付した光反射性基材を有する積層体において、前記支持基材の平滑度とほぼ同等の平滑度を有する第１のインキのインキ皮膜でカモフラージュ模様を設け、前記カモフラージュ模様を印刷した領域内に、前記支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、前記印刷パターン支持体の第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記第２のインキの印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記第２のインキの印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上で第２のインキの印刷パターンの領域と、
前記第２のインキの印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記第２のインキの印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記第２のインキの印刷パターンは、前記第１のインキのカモフラージュ模様によりカモフラージュされ確認されることがないことを特徴とする光反射性基材を有する積層体である。
【００１３】
また、本発明は、平滑度の低い支持基材上に印刷パターンを設けた印刷パターン支持体と、裏面に接着層を有する光透過性のない光反射性基材であるホログラム又は多重回折格子若しくは薄膜干渉フィルターの光学的変化素子とを、前記印刷パターンを有する面を前記光反射性基材との接着面として貼付した光反射性基材を有する積層体において、前記支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、前記印刷パターンを印刷した上に、前記支持基材の平滑度とほぼ同等の平滑度を有する前記第２のインキと同色の第１のインキのインキ皮膜でカモフラージュ模様を設け、前記印刷パターン支持体の第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記第２のインキの印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記第２のインキの印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上で第２のインキの印刷パターンの領域と、前記第２のインキの印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記第２のインキの印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記第２のインキの印刷パターンは、前記第１のインキのカモフラージュ模様によりカモフラージュされ確認されることがないことを特徴とする光反射性基材を有する積層体である。
【００１５】
また、本発明の平滑度の低い支持基材は、平滑度がベック平滑度試験器で１２０秒以下であることを特徴とする光反射性基材を有する積層体である。
【００１６】
また、本発明の印刷パターンは、文字、記号、数字、絵柄及び顔画像の少なくとも一つ以上の個別情報であることを特徴とする光反射性基材を有する積層体である。
【００１７】
【発明の実施の形態】
図１乃至図３は本発明の基本原理を示したものである。図１乃至図３は光反射性基材に、一般的によく使われている裏面に接着層を有する光透過性のないホログラム箔を用い、図１は平滑度の高い支持基材（１’）に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したもの、図２は平滑度の低い支持基材（１）に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したもの、図３は平滑度の低い支持基材（１）上に印刷パターン（４）を印刷した印刷パターン支持体の印刷パターンを有する面の上に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものである。
【００１８】
図１は平滑度の高い支持基材（１’）に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものである。支持基材（１’）の平滑度が高いため、貼付されたホログラム箔（３）も平滑となる。ホログラム箔（３）は、入射光（６）が入ると乱反射が起こらないため、きれいな反射光（７）となる。
【００１９】
図２は平滑度の低い支持基材（１）に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものである。支持基材（１）の平滑度が低いため、貼付されたホログラム箔（３）も平滑とならない。ホログラム箔（３）は、入射光（６）が入ると乱反射（８）が起こるため、きれいな反射光（７）とならず、図１に示した平滑度の高い支持基材（１’）に、裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものよりも全体的に白く濁ったようになる。
【００２０】
図３は平滑度の低い支持基材（１）上に印刷パターン（４）を印刷した印刷パターン支持体の印刷パターンを有する面の上に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものである。平滑度の低い支持基材（１）に印刷パターン（４）を印刷することで印刷部が平滑になり、印刷された部分と印刷されてない部分にホログラム箔（３）を貼付すると、ホログラム箔（３）に印刷された部分と印刷されてない部分の平滑度の違いが型付けされる。ここでの型付とは、エンボスを施すことではなく、スタンパー等で貼付を施すことで、印刷された部分と印刷されてない部分の平滑度の違いがホログラム箔の形状に影響を及ぼすことである。この積層体を反射光で確認した場合に、印刷パターン（４）では貼付面が平滑になっているため、その領域のホログラム箔（３）も平滑になり、入射光（６）が入ると乱反射（８）が起こらないため、きれいな反射光（７）となり、印刷されてない部分では貼付面が平滑になっていないため、その領域のホログラム箔（３）も平滑にならず、入射光（６）が入ると乱反射（８）が起こるため、きれいな反射光（７）とならず、白く濁ったようになる。この反射の起こり方の違いによって、ホログラム箔（３）の印刷パターン（４）の領域と印刷されてない部分の領域に輝度の差が生じてホログラム箔（３）上で印刷パターン（４）が確認できる。
【００２１】
図３の場合、印刷パターンのインキは、有色インキ、無色透明インキ又は基材とほぼ同色のインキを用いることができる。平滑度の低い支持基材に光透過性を有する支持基材を用い、無色透明インキ又は基材とほぼ同色のインキを用いた場合に、本発明の積層体を裏面から観察した場合に、印刷パターンを確認することができないため秘匿性が向上する。また、平滑度の低い支持基材に光透過性を有する支持基材を用い、基材と異なる色彩のインキを印刷パターンに用いた場合に、裏面にカモフラージュ模様を印刷することにより、裏面から観察した場合に、印刷パターンを確認することができなくなり秘匿性が向上する。光透過性を有する支持基材の不透明度（％）は、ハンター反射率計で９０％以下が好ましい。
【００２２】
図４は平滑度の低い支持基材（１）に支持基材の平滑度とほぼ同等の平滑度を有するインキ皮膜が生じるインキによるカモフラージュ模様（５）を印刷し、その上に支持基材の平滑度よりも高い平滑度を有するインキ皮膜が生じる印刷パターン（４）を重ねて印刷し、その上に裏面に接着層（２）を有する光透過性のないホログラム箔（３）を貼付したものである。カモフラージュ模様（５）のインキが平滑度の低い支持基材（３）中に浸透していくため、印刷されていない部分との平滑度の違いにあまり差が生じない。カモフラージュ模様（５）上に浸透性の悪いインキによる印刷パターン（４）を重ねて印刷し、その上に光反射性基材を貼付すると、カモフラージュ模様（５）は、インキが支持基材中に浸透してしまい、印刷されていない部分との平滑度の変化があまり生じないが、印刷パターン（４）のインキは浸透性が悪いため平滑になり、反射光で確認した場合に、印刷パターン（４）では貼付面が平滑になっているためその領域のホログラム箔（３）も平滑となり、入射光（６）が入ると乱反射（８）が起こらないため、きれいな反射光（７）となり、カモフラージュ模様（５）及び印刷されてない部分では貼付面が平滑になっていないためその領域のホログラム箔（３）も平滑にならず、入射光（６）が入ると乱反射（８）が起こるため、きれいな反射光（７）とならず、白く濁ったようになる。この乱反射の起こり方の違いによって印刷パターン（４）を確認することが出来る。
【００２３】
図４の場合、平滑度の低い支持基材に光透過性を有する支持基材を用いた場合に、積層体を裏面から観察した場合に、印刷パターンは、カモフラージュ模様によりカモフラージュされ確認されることがないため秘匿性が向上する。また、図４の場合、カモフラージュ模様を印刷した上に印刷パターンを印刷しているが、例えば、印刷パターンを印刷した上にカモフラージュ模様を重ねて印刷しても同様な効果が得られる。この場合、印刷パターンのインキとカモフラージュ模様のインキの色彩が同色である必要がある。また、平滑度の低い支持基材に光透過性を有する支持基材を用い、印刷パターンのインキとカモフラージュ模様のインキの色彩が同色の場合、カモフラージュ模様を印刷した上に印刷パターンを印刷しなくとも、印刷パターンの周辺部にカモフラージュ模様を印刷することによって、裏面から観察した場合に、印刷パターンを確認することができなくなり秘匿性が向上する。
【００２４】
上記記載では光反射性基材にホログラム箔を用いているが、本発明はこれに限定されず、光を反射する基材であればよく、ホログラム、多重回折格子若しくは薄膜干渉フィルター等の光学的変化素子又は金属薄膜の光反射性素材を用いることが出来る。
【００２５】
本発明に用いる平滑度の低い支持基材は、紙葉類、フィルム、プラスチック、金属等を用いることができる。また、本発明に用いる平滑度の低い支持基材は、平滑度がベック平滑度試験器（ＪＩＳ Ｐ ８１３０）での測定値で１２０秒以下が望ましい。更に好ましくは１００秒以下が好ましい。これよりも平滑度が高いと、印刷を行っても印刷面と被印刷面との平滑度に差が生じなくなってしまい、印刷パターンが確認できない。
【００２６】
また、本発明の印刷パターンに用いるインキは、有色インキ、無色透明インキ又は支持基材とほぼ同色のインキを用いることができる。また、印刷パターンに用いるインキ皮膜は、支持基材の平滑度よりも高い平滑度を有する必要がある。本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、有色インキで印刷パターンを印刷した場合に、裏面から印刷パターンを確認することができる。本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、無色透明インキ又は支持基材とほぼ同色のインキで印刷パターンを印刷した場合に、裏面から印刷パターンを確認することができないため秘匿性が向上する。更に、本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、支持基材の平滑度よりも高い平滑度を有するインキ皮膜の第２のインキで印刷パターンを設け、印刷パターンの周辺領域に、支持基材の平滑度とほぼ同等の平滑度を有するインキ皮膜の第１のインキでカモフラージュ模様を設けた場合に、光反射性基材上でカモフラージュ模様は確認することはできないが、印刷パターンが確認でき、裏面から観察した場合に、カモフラージュ模様によって印刷パターンを確認することができないため秘匿性が向上する。
【００２７】
また、本発明の印刷パターンは、文字、記号、数字、絵柄及び顔画像等の少なくとも一つ以上の個別情報を用いることができる。
【００２８】
本発明の印刷パターン及びカモフラージュ模様の印刷方法は特に限定されるものではない。
【００２９】
【実施例】
以下、実施例を用いて本発明を更に詳細に説明するが、本発明の内容は、これらの実施例の範囲に限定されるものではない。
【００３０】
（実施例１）
ホログラムパターン（Ａ）を設けた裏面に接着層を有する反射型ホログラム箔（３）を図５に示す。平滑度３６秒の用紙（１）に印刷パターン（４）をレーザプリンタによって印刷した印刷パターン支持体を図６に示す。このときの印刷パターン（４）のインキ皮膜は、平滑度５２秒である。図７に示すように、印刷パターン（４）を印刷した用紙（１）に、裏面に接着層（２）を有する反射型ホログラム箔（３）を貼付（印刷パターン上と印刷パターンを施していない領域）し、実施例１の積層体（９）を作製した。反射型ホログラム箔（３）を用紙（１）に貼付することによって、反射型ホログラム箔（３）に用紙（１）と印刷パターン（４）の平滑度の違いが型付けされる。
【００３１】
図８に示すように 積層体（９）を反射光で観察した場合、反射型ホログラム箔（３）上で印刷パターン（４）の領域は平滑度が高いため乱反射することなく、反射型ホログラム箔（３）上で印刷パターン（４）以外の領域は平滑度が低いため乱反射が起こるため、反射型ホログラム箔（３）上の印刷パターン（４）の領域と印刷パターン（４）以外の領域に輝度の差が生じて反射型ホログラム箔（３）上で印刷パターン（４）が確認できた。また、反射型ホログラム箔（３）に設けたホログラムパターン（Ａ）も確認できた。
【００３２】
（実施例２）
実施例１と同様のデザインで、光透過性を有する平滑度３６秒の用紙に印刷パターンを透明インキによって熱転写プリンタした印刷パターン支持体を作製した。このときの印刷パターン（４）のインキ皮膜は、平滑度５２秒である。印刷パターンを印刷した用紙に、裏面に接着層を有する反射型ホログラム箔を貼付（印刷パターン上と印刷パターンを施していない領域）し、実施例２の積層体を作製した。この実施例２の積層体を反射光で観察した場合に、透明インキにも係わらず、実施例１と同様に印刷パターンが確認できた。また、反射型ホログラム箔に設けたホログラムパターンも確認できた。用紙に、光透過性を有する平滑度３６秒の用紙を用いているため、通常の有色インキでは、用紙の裏面から印刷パターンが確認できるが、透明インキで印刷しているため用紙の裏面からは印刷パターンを確認することができなかった。
【００３３】
（実施例３）
平滑度２１秒の用紙（１）に図９のカモフラージュ模様（５）を浸透性の良いインキとしてインクジェットプリンタによって印刷し、その上に浸透性の悪いインキとしてレーザプリンタによって印刷パターンを印刷し、その上にホログラム箔を貼付し、実施例３の積層体を作製した。実施例３の積層体を反射光で観察した場合に、カモフラージュ模様は確認することができなく、ホログラムパターン（Ａ）とレーザプリンタによって印刷した印刷パターンのみを確認することが出来た。しかし用紙の裏面から観察すると、図６のレーザプリンタによって印刷した印刷パターンはインクジェットプリンタによって印刷したカモフラージュ模様によってカモフラージュされ確認することが出来なかった。
【００３４】
（実施例４）
実施例１のホログラム箔の代わりに▲１▼多重回折格子、▲２▼薄膜干渉フィルター▲３▼金属薄膜を用いて実施例１と同様の構成で三つのサンプルを作製した。三つのサンプルにおいても実施例１の印刷物と同様な効果が得られた。
【００３５】
（実施例５）
用紙の平滑度、印刷パターンの平滑度をベック平滑度試験器（ＪＩＳ Ｐ ８１３０）により測定し、適性値を把握した。印刷パターンの確認度の関係は、印刷パターンがはっきりと確認できるものを○、印刷パターンがはっきりとではないが確認できるものを△、全く確認できないものを×という三段階で評価した。評価結果については表１に示す。
【００３６】
【表１】
表１に示すように用紙の平滑度が１２０秒以下で、且つ、用紙の平滑度と印刷パターンの平滑度に差が生じると印刷パターンを確認することができることがわかる。
【００３８】
以上、本発明の実施例に基づいて説明したが、本発明はこの実施例に限定されるものではなく、特許請求の範囲記載における技術的思想の範囲内であれば、その他のいろいろな実施の形態が考えられる。
【００３９】
【発明の効果】
本発明の積層体を反射光で観察した場合に、光反射性基材上で印刷パターンの領域は平滑度が高いため乱反射することなく、光反射性基材上で印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、光反射性基材上の印刷パターンの領域と印刷パターンを施していない領域に輝度の差が生じて光反射性基材上で印刷パターンが確認でき、光反射性基材に画像等の情報を設けたホログラム等を用いることにより、本発明の積層体を反射光で観察した場合に、印刷パターンとホログラムに設けた画像等の情報が確認できるため、誰でも容易に真偽判別することが可能であり、銀行券、株券、有価証券、通行券、パスポート、カード等の偽造、複写を防止する必要性のある貴重印刷物に適用することができる。
【００４０】
本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、無色透明インキ又は支持基材とほぼ同色のインキで印刷パターンを印刷した場合に、裏面から印刷パターンを確認することができないため秘匿性が向上する。更に、本発明の支持基材を光透過性のある平滑度の低い支持基材を用い、支持基材の平滑度とほぼ同等の平滑度を有する第１のインキのインキ皮膜でカモフラージュ模様を設け、カモフラージュ模様の領域内の上側（後刷）又はカモフラージュ模様の領域内の下側（先刷：この場合、印刷パターンとカモフラージュ模様のインキは同色）に、支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体においても、裏面から観察するとカモフラージュ模様によって印刷パターンを確認することができないため秘匿性が向上する。
【００４１】
また、光反射性基材にホログラムを用い、印刷パターンを個別情報にすることにより、個別情報を有するホログラムのような擬似的なホログラムを作製することができる。このことから個別情報を付与するためのホログラム原版を作製する必要がなく、コストを低減することができる。更に、光反射性基材上に印刷パターンを設けた場合に、印刷パターンを改竄される恐れが生じるが、本発明は平滑度の低い支持基材上に印刷パターンを設け、その上に光反射性基材を貼付しているため、印刷パターンを改竄することが困難となる。
【００４２】
【図面の簡単な説明】
【図１】平滑度の高い支持基材に裏面に接着層を有する光透過性のないホログラム箔を貼付した断面図である。
【図２】平滑度の低い支持基材に裏面に接着層を有する光透過性のないホログラム箔を貼付した断面図である。
【図３】平滑度の低い支持基材上に、印刷パターンを印刷した印刷パターン支持体の印刷パターンを有する面の上に、裏面に接着層を有する光透過性のないホログラム箔を貼付した断面図である。
【図４】平滑度の低い支持基材に支持基材の平滑度とほぼ同等の平滑度を有するインキ皮膜が生じるインキによるカモフラージュ模様を印刷し、その上に支持基材の平滑度よりも高い平滑度を有するインキ皮膜が生じる印刷パターンを重ねて印刷し、その上に裏面に接着層を有する光透過性のないホログラム箔を貼付した断面図及び平面図である。
【図５】本発明における、ホログラムパターンを設けた裏面に接着層を有する反射型ホログラム箔を示す図である。
【図６】本発明における、用紙に印刷パターンを印刷した印刷パターン支持体を示す図である。
【図７】本発明の積層体の断面図を示す図である。
【図８】本発明の積層体を反射光で観察した場合の図である。
【図９】浸透性の良いインキで印刷したカモフラージュ模様を示す図である。
【符号の説明】
１ 平滑度の低い支持基材
１’ 平滑度の高い支持基材
２ 接着層
３ 光透過性のないホログラム箔
４ 印刷パターン
５ カモフラージュ模様
６ 入射光
７ 反射光
８ 乱反射光
９ 積層体
Ａ ホログラムパターン[0001]
BACKGROUND OF THE INVENTION
The present invention relates to a laminate having a light-reflective substrate, which is applied to valuable printed matter that needs to prevent counterfeiting and copying of banknotes, stock certificates, securities, passports, passports, gift certificates, cards, etc. Is.
[0002]
[Prior art]
Due to the nature of precious printed matter such as banknotes, stock certificates, securities, passports, gift certificates, cards, etc., they are required not to be counterfeited or tampered with. As a preventive measure, authenticity determination is performed by attaching a light-reflective substrate to the surface of the valuable printed matter. Since the light-reflective substrate is one of anti-counterfeiting elements that are particularly effective from the viewpoint of copy prevention and copy prevention, it has been applied to many valuable printed materials.
[0003]
However, since it is used in many valuable printed materials, it is becoming easier to forge and copy. In recent years, it has become possible to improve the reproducibility of color copiers, advanced fine processing technology, and the principle of light-reflective substrates via the Internet. Light-reflective substrates with good reproducibility have been forged and duplicated so that they cannot be distinguished. For these reasons, an element having a higher effect of preventing forgery has been demanded.
[0004]
In addition, since the light reflective base material is too costly to produce in a small number, the same light reflective base material is used for the same object. This is a major factor in counterfeiting and copying.
[0005]
A concealment card is disclosed in which a transparent hologram and a metal-deposited hologram are laminated on a concealment information display part of a card substrate with an adhesive, and the concealment information display part can be seen through (Patent No. 2894492). See the official gazette).
[0006]
A data carrier is disclosed in which a coating with an optically changing color is provided on the surface, and at least a portion of the coating has a linear stamping process, and the color changes depending on the viewing angle (Japanese Patent Publication No. 11-501590). No. publication).
[0007]
[Problems to be solved by the invention]
Conventionally, with a concealment card (see Japanese Patent No. 2894492), a printed portion printed under the transparent light-reflective substrate to be affixed to the card substrate can be seen through the printed matter, and a visible image The structure is flat and easy to be tampered with. Also, the one that changes the color by coating the data carrier's assertion and stamping the coated part to change the color (see Japanese National Patent Publication No. 11-501590) is special. This is not suitable for manufacturing a small amount of various kinds of processing devices, and has difficulty in providing individual information.
[0008]
The present invention was made to solve both of these problems, and provided a print pattern by printing on the surface of a support having a fine shape, and the difference in fine shape between the support substrate and the print pattern surface. Is cast on the surface of the non-transparent light-reflective substrate directly applied to the printing surface of the support substrate, and the printed pattern printed on the surface of the support substrate is raised on the surface of the light-reflective substrate that is affixed on it. In addition, the present invention proposes a laminate having a light-reflective substrate having a structure in which a printed pattern cannot be falsified due to a difference in fine shape (smoothness) from the surface of the laminate.
[0009]
In addition, when a support substrate with low light smoothness is used for the support substrate used in the laminate of the present invention, a printing pattern is printed with a colorless transparent ink or an ink having substantially the same color as the support substrate. Therefore, since the print pattern cannot be confirmed from the back surface, the confidentiality is improved. Further, the support substrate of the present invention is a light-transmitting support substrate with low smoothness, and a camouflage pattern is provided with an ink film of the first ink having smoothness substantially equal to the smoothness of the support substrate. Smoother than the smoothness of the support substrate on the upper side in the camouflage pattern area (post-printing) or on the lower side in the camouflage pattern area (pre-printing: in this case, the printing pattern and the camouflage ink are the same color) The difference in smoothness between the second ink print pattern and the second ink print pattern area of the print pattern support is provided by the ink film of the second ink having a degree of light. Even in a laminate having a light-reflective substrate that is molded with a difference in smoothness of the reflective substrate, the print pattern of the second ink is confirmed by a camouflage pattern when observed from the back side. It is confidentiality is improved because you can not.
[0010]
[Means for Solving the Invention]
The present invention relates to a non-light-transmitting light-reflective substrate having a printed pattern support provided with a printed pattern on a support substrate having low smoothness and an adhesive layer on the back surface. Hologram or optical diffraction element of multiple diffraction grating or thin film interference filter In a laminate having a light reflective substrate in which the surface having the print pattern is affixed as an adhesive surface with the light reflective substrate, the print pattern on the support substrate is printed with colored ink, The ink film of the print pattern has a smoothness higher than the smoothness of the support substrate, and the difference in smoothness between the print pattern of the print pattern support and the region where no print pattern is applied is the light reflection. A laminate having a light-reflective substrate that is molded with a difference in smoothness of the conductive substrate, and when the laminate is observed with reflected light, the printing is performed on the light-reflective substrate. The region of the pattern does not diffusely reflect because the smoothness is high, and the region where the print pattern is not applied on the light-reflective substrate has low smoothness and therefore irregular reflection occurs. Print pattern area and the mark A laminate having a light-reflecting substrate, characterized in that pattern can the confirmation printing pattern on the light reflecting substrate have not area difference occurs between the brightness by performing.
[0011]
The present invention also provides a printed pattern support having a printed pattern on a support substrate having low smoothness and a light-reflective substrate having no adhesiveness on the back surface. Hologram or optical diffraction element of multiple diffraction grating or thin film interference filter In the laminate having the light-reflective substrate pasted with the surface having the print pattern as an adhesive surface with the light-reflective substrate, the print pattern on the support substrate is a colorless transparent ink or substrate The ink film of the print pattern has a smoothness higher than the smoothness of the support substrate, and the print pattern and the print pattern of the print pattern support are printed. A laminate having a light-reflecting substrate that is shaped by a difference in smoothness from an untreated region being a difference in smoothness of the light-reflecting substrate, and the laminate is observed with reflected light In this case, the region of the print pattern on the light reflective substrate has a high smoothness and therefore does not reflect irregularly, and the region on the light reflective substrate that does not have the print pattern has a low smoothness. Because of irregular reflection, A difference in brightness occurs between the area of the printed pattern on the light-reflective substrate and the area where the printed pattern is not applied, and the printed pattern can be confirmed on the light-reflective substrate. When observed, the printed pattern is a laminate having a light-reflective substrate, which is not confirmed because of a colorless transparent ink or an ink having substantially the same color as the substrate.
[0012]
The present invention also provides a printed pattern support having a printed pattern on a support substrate having low smoothness and a light-reflective substrate having no adhesiveness on the back surface. Hologram or optical diffraction element of multiple diffraction grating or thin film interference filter In a laminate having a light-reflecting base material in which the surface having the printed pattern is attached as an adhesive surface with the light-reflecting base material, the first layer has a smoothness substantially equal to the smoothness of the support base material. A camouflage pattern is provided with an ink film of one ink, and a printing pattern is provided with an ink film of a second ink having a smoothness higher than the smoothness of the support substrate in the region where the camouflage pattern is printed, The difference in smoothness between the printed pattern of the second ink on the printed pattern support and the area where the printed pattern of the second ink is not applied becomes the difference in the smoothness of the light-reflecting substrate, and the patterning is performed. A laminate having a light-reflecting substrate, and when the laminate is observed with reflected light, the region of the print pattern of the second ink has high smoothness, so that the light-reflecting property does not occur. On substrate Since the region is not subjected to printing pattern of the second ink which occurs irregular reflection due to low smoothness, and areas of the printing pattern of the second ink on the light reflecting substrate,
When a difference in brightness occurs in a region where the second ink print pattern is not applied, the second ink print pattern can be confirmed on the light-reflective substrate, and the laminate is observed from the back side. The printed pattern of the second ink is a laminate having a light-reflective substrate characterized by being not camouflaged and confirmed by the camouflage pattern of the first ink.
[0013]
The present invention also provides a printed pattern support having a printed pattern on a support substrate having low smoothness and a light-reflective substrate having no adhesiveness on the back surface. Hologram or optical diffraction element of multiple diffraction grating or thin film interference filter In a laminate having a light reflective substrate in which the surface having the print pattern is pasted as an adhesive surface with the light reflective substrate, the second has a smoothness higher than the smoothness of the support substrate. An ink film of the first ink having the same color as that of the second ink having a smoothness substantially equal to the smoothness of the support substrate after the printing pattern is printed and the printing pattern is printed. A camouflage pattern is provided, and the difference in smoothness between the second ink print pattern and the second ink print pattern on the print pattern support is the difference in smoothness of the light-reflecting substrate. When the laminate is observed with reflected light, the area of the print pattern of the second ink is irregularly reflected due to high smoothness. Without said Since the region where the second ink print pattern is not applied on the reflective substrate has low smoothness and irregular reflection occurs, the second ink print pattern region on the light reflective substrate, When the difference in brightness occurs in the area where the second ink print pattern is not applied and the print pattern of the second ink can be confirmed on the light-reflective substrate, and the laminate is observed from the back side, The printed pattern of the second ink is a laminate having a light-reflective substrate, which is camouflaged and not confirmed by the camouflage pattern of the first ink.
[0015]
The low-smooth support substrate of the present invention is a laminate having a light-reflective substrate characterized in that the smoothness is 120 seconds or less with a Beck smoothness tester.
[0016]
The printed pattern of the present invention is a laminate having a light-reflective substrate characterized by being at least one piece of individual information of characters, symbols, numbers, pictures, and face images.
[0017]
DETAILED DESCRIPTION OF THE INVENTION
1 to 3 show the basic principle of the present invention. 1 to 3 use a light-reflective substrate and a light-transmitting hologram foil having an adhesive layer on the back surface, which is commonly used, and FIG. 2) a non-light-transmitting hologram foil (3) having an adhesive layer (2) on the back surface, FIG. 2 shows light having an adhesive layer (2) on the back surface of a support substrate (1) having low smoothness. Fig. 3 shows a printed pattern support obtained by printing a printed pattern (4) on a support substrate (1) with low smoothness. A non-light-transmitting hologram foil (3) having an adhesive layer (2) is attached to the back surface.
[0018]
FIG. 1 shows a non-light-transmitting hologram foil (3) having an adhesive layer (2) on the back surface of a support substrate (1 ′) having high smoothness. Since the smoothness of the supporting substrate (1 ′) is high, the stuck hologram foil (3) is also smooth. The hologram foil (3) becomes clean reflected light (7) because no irregular reflection occurs when incident light (6) enters.
[0019]
FIG. 2 shows a non-light-transmitting hologram foil (3) having an adhesive layer (2) on the back surface of a support substrate (1) with low smoothness. Since the smoothness of the supporting substrate (1) is low, the stuck hologram foil (3) is also not smooth. The hologram foil (3) undergoes irregular reflection (8) when incident light (6) enters, so that it does not become clean reflected light (7), but on the support substrate (1 ′) with high smoothness shown in FIG. As a result, the whole surface becomes cloudy and whiter than the non-light-transmitting hologram foil (3) having the adhesive layer (2) on the back surface.
[0020]
FIG. 3 shows a non-light-transmitting layer having an adhesive layer (2) on the back side of the printed pattern support on which the printed pattern (4) is printed on the support substrate (1) with low smoothness. A hologram foil (3) is attached. When the printing pattern (4) is printed on the support substrate (1) having a low smoothness, the printing part becomes smooth, and when the hologram foil (3) is applied to the printed part and the non-printed part, the hologram foil The difference in smoothness between the part printed in (3) and the part not printed is typed. Molding here is not embossing but sticking with a stamper etc., and the difference in smoothness between the printed part and the unprinted part affects the shape of the hologram foil. is there. When this laminated body is confirmed by reflected light, since the pasting surface is smooth in the printed pattern (4), the hologram foil (3) in that region is also smoothed and diffusely reflected when incident light (6) enters. Since (8) does not occur, clean reflected light (7) is obtained, and the pasted surface is not smooth in the unprinted portion, so that the hologram foil (3) in that region is not smooth, and incident light (6 ) Will cause diffuse reflection (8), so it will not be clean reflected light (7), but will appear white and cloudy. Due to this difference in reflection, a difference in brightness occurs between the printed pattern (4) area of the hologram foil (3) and the unprinted area, so that the printed pattern (4) is formed on the hologram foil (3). I can confirm.
[0021]
In the case of FIG. 3, the ink of the printing pattern can be a colored ink, a colorless transparent ink, or an ink having substantially the same color as the base material. When a support substrate having light permeability is used for a support substrate with low smoothness and a colorless transparent ink or an ink having substantially the same color as that of the substrate is used, printing is performed when the laminate of the present invention is observed from the back side. Since the pattern cannot be confirmed, confidentiality is improved. In addition, when a support substrate having light transparency is used for a support substrate with low smoothness, and ink of a color different from that of the substrate is used for the print pattern, a camouflage pattern is printed on the back surface, so that it can be observed from the back surface. In this case, the print pattern cannot be confirmed, and confidentiality is improved. The opacity (%) of the light-transmitting supporting substrate is preferably 90% or less with a Hunter reflectometer.
[0022]
FIG. 4 shows that a camouflage pattern (5) is printed on the supporting base material (1) having a low smoothness, and an ink film having an smoothness substantially equal to the smoothness of the supporting base material is produced. A printed pattern (4) that gives rise to an ink film having a smoothness higher than the smoothness is overprinted and a non-light-transmitting hologram foil (3) having an adhesive layer (2) on the back surface It is. Since the camouflage pattern (5) ink penetrates into the support substrate (3) having a low smoothness, there is not much difference in the smoothness difference from the unprinted portion. When the print pattern (4) with poorly penetrating ink is printed over the camouflage pattern (5) and a light-reflective substrate is pasted on the camouflage pattern (5), the camouflage pattern (5) However, the ink of the printing pattern (4) is smooth because of poor permeability, and when it is confirmed by reflected light, the printing pattern ( In 4), since the affixed surface is smooth, the hologram foil (3) in that region is also smooth, and when the incident light (6) enters, irregular reflection (8) does not occur, so the reflected light (7) becomes clean and camouflage. Since the pasting surface is not smooth in the pattern (5) and the unprinted portion, the hologram foil (3) in that region is not smooth, and when the incident light (6) enters, irregular reflection (8) occurs. beautiful Not the reflected light (7), it becomes as cloudy white. The print pattern (4) can be confirmed by the difference in the way that the irregular reflection occurs.
[0023]
In the case of FIG. 4, when a support substrate having light transparency is used as a support substrate with low smoothness, the printed pattern is camouflaged and confirmed by a camouflage pattern when the laminate is observed from the back surface. Because there is no secret, confidentiality improves. In the case of FIG. 4, the print pattern is printed on the camouflage pattern. However, for example, the same effect can be obtained by printing the print pattern on the camouflage pattern. In this case, the colors of the printing pattern ink and the camouflage pattern ink must be the same color. In addition, if a support substrate having light transparency is used for a support substrate with low smoothness and the colors of the ink of the print pattern and the camouflage pattern are the same color, the print pattern is not printed on the camouflage pattern. In both cases, by printing a camouflage pattern on the periphery of the print pattern, the print pattern cannot be confirmed when viewed from the back side, and the secrecy is improved.
[0024]
In the above description, a hologram foil is used for the light-reflective substrate. However, the present invention is not limited to this, and any substrate that reflects light may be used, such as a hologram, a multiple diffraction grating, or a thin film interference filter. A light reflecting material such as a change element or a metal thin film can be used.
[0025]
As the support substrate with low smoothness used in the present invention, paper sheets, films, plastics, metals and the like can be used. Further, the support substrate having a low smoothness used in the present invention preferably has a smoothness of 120 seconds or less as measured by a Beck smoothness tester (JIS P 8130). More preferably, it is 100 seconds or less. If the smoothness is higher than this, even if printing is performed, there is no difference in smoothness between the printing surface and the printing surface, and the printing pattern cannot be confirmed.
[0026]
Moreover, the ink used for the printing pattern of this invention can use colored ink, a colorless and transparent ink, or the ink of the substantially same color as a support base material. Moreover, the ink film used for a printing pattern needs to have smoothness higher than the smoothness of a support base material. When the support base material of the present invention is a light-transmitting support base material with low smoothness and the print pattern is printed with colored ink, the print pattern can be confirmed from the back surface. When the support substrate of the present invention is a light-transmitting support substrate with low smoothness, and the print pattern is printed with a colorless transparent ink or an ink having substantially the same color as the support substrate, the print pattern is confirmed from the back surface. It is impossible to improve confidentiality. Furthermore, the support base material of the present invention is a light-transmitting low support base material, and a printing pattern is provided with the second ink of the ink film having a smoothness higher than the smoothness of the support base material, When the camouflage pattern is provided in the peripheral area of the print pattern with the first ink of the ink film having a smoothness substantially equal to the smoothness of the support substrate, the camouflage pattern should be confirmed on the light reflective substrate. However, since the print pattern can be confirmed and the print pattern cannot be confirmed by the camouflage pattern when observed from the back side, the confidentiality is improved.
[0027]
In addition, the print pattern of the present invention can use at least one or more pieces of individual information such as characters, symbols, numbers, pictures, and face images.
[0028]
The printing pattern and camouflage pattern printing method of the present invention are not particularly limited.
[0029]
【Example】
EXAMPLES Hereinafter, although this invention is demonstrated further in detail using an Example, the content of this invention is not limited to the range of these Examples.
[0030]
(Example 1)
A reflective hologram foil (3) having an adhesive layer on the back surface provided with the hologram pattern (A) is shown in FIG. FIG. 6 shows a print pattern support in which the print pattern (4) is printed on a paper (1) having a smoothness of 36 seconds by a laser printer. The ink film of the printing pattern (4) at this time has a smoothness of 52 seconds. As shown in FIG. 7, a reflective hologram foil (3) having an adhesive layer (2) on the back surface is pasted on the paper (1) on which the print pattern (4) is printed (the print pattern and the print pattern are not applied). Region), and the laminate (9) of Example 1 was manufactured. By sticking the reflective hologram foil (3) to the paper (1), the difference in smoothness between the paper (1) and the printed pattern (4) is formed on the reflective hologram foil (3).
[0031]
As shown in FIG. 8, when the laminate (9) is observed with reflected light, the region of the printed pattern (4) on the reflective hologram foil (3) has high smoothness, so that it is not irregularly reflected. (3) Since regions other than the print pattern (4) have low smoothness and diffuse reflection occurs, the region of the print pattern (4) on the reflective hologram foil (3) and the region other than the print pattern (4) A difference in luminance occurred, and the printed pattern (4) was confirmed on the reflective hologram foil (3). Moreover, the hologram pattern (A) provided in the reflection type hologram foil (3) was also confirmed.
[0032]
(Example 2)
A printed pattern support having a design similar to that of Example 1 and a thermal transfer printer using a transparent ink with a printed pattern on a light-transmitting paper having a smoothness of 36 seconds was produced. The ink film of the printing pattern (4) at this time has a smoothness of 52 seconds. A reflective hologram foil having an adhesive layer on the back surface was pasted on the paper on which the print pattern was printed (on the print pattern and in the region where the print pattern was not applied) to produce the laminate of Example 2. When the laminate of Example 2 was observed with reflected light, a print pattern could be confirmed in the same manner as in Example 1 regardless of the transparent ink. Moreover, the hologram pattern provided in the reflection type hologram foil was also confirmed. Since the paper has a light-transmitting smoothness of 36 seconds, the printing pattern can be confirmed from the back of the paper with normal colored ink, but from the back of the paper because it is printed with transparent ink. The print pattern could not be confirmed.
[0033]
(Example 3)
The camouflage pattern (5) of FIG. 9 is printed on the paper (1) with a smoothness of 21 seconds as an ink having good permeability by an ink jet printer, and a printing pattern is printed thereon by a laser printer as ink having poor permeability. A laminate of Example 3 was prepared by pasting a hologram foil thereon. When the laminate of Example 3 was observed with reflected light, the camouflage pattern could not be confirmed, and only the hologram pattern (A) and the print pattern printed by the laser printer could be confirmed. However, when observed from the back side of the paper, the print pattern printed by the laser printer in FIG. 6 was camouflaged by the camouflage pattern printed by the ink jet printer and could not be confirmed.
[0034]
(Example 4)
Three samples were prepared in the same configuration as in Example 1 using (1) multiple diffraction gratings, (2) thin film interference filter, and (3) metal thin film instead of the hologram foil of Example 1. In the three samples, the same effect as the printed matter of Example 1 was obtained.
[0035]
(Example 5)
The smoothness of the paper and the smoothness of the printed pattern were measured by a Beck smoothness tester (JIS P 8130), and the suitability value was grasped. The relationship of the degree of confirmation of the print pattern was evaluated in three stages: ◯ when the print pattern was clearly identifiable, △ when the print pattern was not clear but identifiable, and x when it could not be confirmed at all. The evaluation results are shown in Table 1.
[0036]
[Table 1]
As shown in Table 1, it can be seen that the print pattern can be confirmed when the smoothness of the paper is 120 seconds or less and there is a difference between the smoothness of the paper and the smoothness of the print pattern.
[0038]
Although the present invention has been described based on the embodiment of the present invention, the present invention is not limited to this embodiment, and various other implementations are possible within the scope of the technical idea described in the claims. Possible forms.
[0039]
【The invention's effect】
When the laminate of the present invention is observed with reflected light, the region of the printed pattern on the light-reflective substrate has high smoothness, so that the region is not irregularly reflected and the region on which the printed pattern is not applied on the light-reflective substrate. Since irregularity occurs due to low smoothness, a difference in brightness occurs between the printed pattern area on the light reflective substrate and the area where the print pattern is not applied, and the printed pattern can be confirmed on the light reflective substrate. By using a hologram or the like provided with information such as an image on a light-reflective substrate, when the laminate of the present invention is observed with reflected light, information such as an image provided on the printed pattern and the hologram can be confirmed. Anyone can easily determine authenticity, and can be applied to valuable printed matter that needs to prevent counterfeiting and copying of banknotes, stock certificates, securities, passports, cards, etc.
[0040]
When the support substrate of the present invention is a light-transmitting support substrate with low smoothness, and the print pattern is printed with a colorless transparent ink or an ink having substantially the same color as the support substrate, the print pattern is confirmed from the back surface. It is impossible to improve confidentiality. Further, the support substrate of the present invention is a light-transmitting support substrate with low smoothness, and a camouflage pattern is provided with an ink film of the first ink having smoothness substantially equal to the smoothness of the support substrate. Smoother than the smoothness of the support substrate on the upper side in the camouflage pattern area (post-printing) or on the lower side in the camouflage pattern area (pre-printing: in this case, the printing pattern and the camouflage ink are the same color) A printing pattern is provided by the ink film of the second ink having a degree of smoothness, and the difference in smoothness between the second ink printing pattern and the area where the second ink printing pattern is not applied is determined by the light reflective substrate. Even in a laminate having a light-reflective substrate that is molded with a difference in smoothness, the concealment is improved because the print pattern cannot be confirmed by the camouflage pattern when observed from the back side. .
[0041]
Moreover, a pseudo hologram like a hologram having individual information can be produced by using a hologram as the light-reflective substrate and making the print pattern into individual information. Therefore, it is not necessary to prepare a hologram original plate for giving individual information, and the cost can be reduced. Furthermore, when a print pattern is provided on a light-reflective substrate, there is a risk that the print pattern may be tampered. However, the present invention provides a print pattern on a support substrate with low smoothness and reflects light on the support pattern. Since the adhesive base material is pasted, it is difficult to tamper with the print pattern.
[0042]
[Brief description of the drawings]
FIG. 1 is a cross-sectional view in which a non-light-transmitting hologram foil having an adhesive layer on the back surface is attached to a support substrate having high smoothness.
FIG. 2 is a cross-sectional view in which a non-light-transmitting hologram foil having an adhesive layer on the back surface is attached to a support substrate having low smoothness.
FIG. 3 is a cross-sectional view in which a non-light-transmitting hologram foil having an adhesive layer on the back surface is pasted on the surface having a print pattern of a print pattern support on which a print pattern is printed on a support substrate having low smoothness. FIG.
FIG. 4 prints a camouflage pattern with an ink that produces an ink film having a smoothness substantially equal to the smoothness of the support base material on a support base having a low smoothness, and has a higher smoothness on the support base material. It is sectional drawing and a top view which stuck and printed the printing pattern which produces the ink membrane | film | coat which has smoothness, and stuck the non-light-transmitting hologram foil which has an adhesive layer on the back surface.
FIG. 5 is a view showing a reflective hologram foil having an adhesive layer on the back surface provided with a hologram pattern in the present invention.
FIG. 6 is a diagram showing a print pattern support in which a print pattern is printed on a sheet in the present invention.
FIG. 7 is a cross-sectional view of a laminate according to the present invention.
FIG. 8 is a view when the laminate of the present invention is observed with reflected light.
FIG. 9 is a diagram showing a camouflage pattern printed with ink having good permeability.
[Explanation of symbols]
1 Support substrate with low smoothness
1 'Supporting substrate with high smoothness
2 Adhesive layer
3 Hologram foil without light transmission
4 Print pattern
5 Camouflage pattern
6 Incident light
7 Reflected light
8 Diffuse reflected light
9 Laminate
A Hologram pattern
Claims (6)
前記支持基材上の印刷パターンは、有色インキで印刷し、前記印刷パターンのインキ皮膜は、前記支持基材の平滑度よりも高い平滑度を有し、前記印刷パターン支持体の印刷パターンと印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記光反射性基材上で前記印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上の前記印刷パターンの領域と前記印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記印刷パターンが確認できることを特徴とする光反射性基材を有する積層体。Optical of a printed pattern support provided with a printed pattern on a support substrate with low smoothness , and a hologram, a multiple diffraction grating, or a thin film interference filter that is a light-reflective substrate that has an adhesive layer on the back surface and does not transmit light In a laminate having a light reflective substrate in which a change element and a surface having the printed pattern are pasted as an adhesive surface with the light reflective substrate,
The print pattern on the support substrate is printed with colored ink, and the ink film of the print pattern has a smoothness higher than the smoothness of the support substrate, and the print pattern and print of the print pattern support A laminate having a light-reflecting substrate that is shaped by a difference in smoothness from an unpatterned region resulting in a difference in smoothness of the light-reflecting substrate, wherein the laminate is reflected light The region of the printed pattern on the light-reflective substrate has a high degree of smoothness, so that the region without the print pattern on the light-reflective substrate has a smoothness. Since irregular reflection occurs due to low, a difference in brightness occurs between the area of the print pattern on the light reflective substrate and the area where the print pattern is not applied, and the print pattern can be confirmed on the light reflective substrate. Characterized by Laminate having a reflective substrate.
前記支持基材上の印刷パターンは、無色透明インキ又は基材とほぼ同色のインキの少なくとも一つ以上で印刷し、前記印刷パターンのインキ皮膜は、前記支持基材の平滑度よりも高い平滑度を有し、前記印刷パターン支持体の印刷パターンと印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記光反射性基材上で前記印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上の前記印刷パターンの領域と前記印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記印刷パターンは無色透明インキ又は基材とほぼ同色のインキのため確認されることがないことを特徴とする光反射性基材を有する積層体。Optical of a printed pattern support provided with a printed pattern on a support substrate with low smoothness , and a hologram, a multiple diffraction grating, or a thin film interference filter that is a light-reflective substrate that has an adhesive layer on the back surface and does not transmit light In a laminate having a light reflective substrate in which a change element and a surface having the printed pattern are pasted as an adhesive surface with the light reflective substrate,
The printed pattern on the support substrate is printed with at least one of a colorless transparent ink or an ink having substantially the same color as the substrate, and the ink film of the print pattern has a smoothness higher than the smoothness of the support substrate. A light-reflective substrate having a difference in smoothness between a printed pattern of the printed pattern support and a region where no printed pattern is applied, resulting in a difference in smoothness of the light-reflective substrate When the laminate is observed with reflected light, the region of the print pattern on the light reflective substrate has high smoothness, and thus the light reflective substrate is not irregularly reflected. Since the region where the print pattern is not applied has irregularity due to low smoothness, a difference in brightness occurs between the region of the print pattern on the light-reflective substrate and the region where the print pattern is not applied. The light reflective group The printed pattern can be confirmed above, and when the laminate is observed from the back side, the printed pattern is not confirmed because of the colorless transparent ink or the ink having substantially the same color as the base material. A laminate having a conductive substrate.
前記支持基材の平滑度とほぼ同等の平滑度を有する第１のインキのインキ皮膜でカモフラージュ模様を設け、前記カモフラージュ模様を印刷した領域内に、前記支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、前記印刷パターン支持体の第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記第２のインキの印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記第２のインキの印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上で第２のインキの印刷パターンの領域と、前記第２のインキの印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記第２のインキの印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記第２のインキの印刷パターンは、前記第１のインキのカモフラージュ模様によりカモフラージュされ確認されることがないことを特徴とする光反射性基材を有する積層体。Optical of a printed pattern support provided with a printed pattern on a support substrate with low smoothness , and a hologram, a multiple diffraction grating, or a thin film interference filter that is a light-reflective substrate that has an adhesive layer on the back surface and does not transmit light In a laminate having a light reflective substrate in which a change element and a surface having the printed pattern are pasted as an adhesive surface with the light reflective substrate,
A camouflage pattern is provided with an ink film of a first ink having a smoothness substantially equal to the smoothness of the support base material, and a smoothness higher than the smoothness of the support base material is provided in the region where the camouflage pattern is printed. A printing pattern is provided by the ink film of the second ink having the above, and the difference in smoothness between the second ink printing pattern and the area where the second ink printing pattern is not applied is the light pattern. A laminate having a light-reflective substrate that is molded with a difference in smoothness of the reflective substrate, and when the laminate is observed with reflected light, the printed pattern of the second ink Since the region has high smoothness, it does not reflect irregularly, and the region where the second ink printing pattern is not applied on the light reflective substrate has low smoothness and therefore irregular reflection occurs. First on A difference in brightness occurs between the area of the ink print pattern and the area not subjected to the second ink print pattern, and the second ink print pattern can be confirmed on the light-reflective substrate. A laminate having a light-reflective substrate, wherein the printed pattern of the second ink is not camouflaged and confirmed by the camouflage pattern of the first ink when the laminate is observed from the back side body.
前記支持基材の平滑度よりも高い平滑度を有する第２のインキのインキ皮膜で印刷パターンを設け、前記印刷パターンを印刷した上に、前記支持基材の平滑度とほぼ同等の平滑度を有する前記第２のインキと同色の第１のインキのインキ皮膜でカモフラージュ模様を設け、前記印刷パターン支持体の第２のインキの印刷パターンと第２のインキの印刷パターンを施していない領域との平滑度の違いが前記光反射性基材の平滑度の違いとなって型付される光反射性基材を有する積層体であって、前記積層体を反射光で観察した場合に、前記第２のインキの印刷パターンの領域は平滑度が高いため乱反射することなく、前記光反射性基材上で前記第２のインキの印刷パターンを施していない領域は平滑度が低いため乱反射が起こるため、前記光反射性基材上で第２のインキの印刷パターンの領域と、前記第２のインキの印刷パターンを施していない領域に輝度の差が生じて前記光反射性基材上で前記第２のインキの印刷パターンが確認でき、前記積層体を裏面から観察した場合に、前記第２のインキの印刷パターンは、前記第１のインキのカモフラージュ模様によりカモフラージュされ確認されることがないことを特徴とする光反射性基材を有する積層体。A print pattern support provided with printed pattern on the lower smoothness supporting substrate is a hologram or a multiple diffraction grating young properly thin film interference filter optically transmissive no light-reflecting substrate having an adhesive layer on the back surface In a laminate having a light-reflective substrate, wherein the optically changing element is attached to the surface having the print pattern as an adhesive surface with the light-reflective substrate,
A printing pattern is provided with an ink film of a second ink having a smoothness higher than the smoothness of the support substrate, and after the printing pattern is printed, the smoothness substantially equal to the smoothness of the support substrate is obtained. A camouflage pattern is provided by an ink film of the first ink having the same color as the second ink, and the second ink printing pattern and the second ink printing pattern on the printing pattern support are not provided. A laminate having a light-reflecting substrate that is molded with a difference in smoothness as a difference in smoothness of the light-reflecting substrate, and when the laminate is observed with reflected light, the first Since the area of the printing pattern of the ink 2 has high smoothness, it does not reflect irregularly, and the area where the printing pattern of the second ink is not applied on the light-reflective substrate has low smoothness and therefore irregular reflection occurs. , The light A difference in luminance occurs between the region of the second ink print pattern on the reflective substrate and the region where the second ink print pattern is not applied, so that the second ink on the light reflective substrate A light characterized in that when the printed pattern can be confirmed and the laminate is observed from the back side, the printed pattern of the second ink is camouflaged by the camouflage pattern of the first ink and is not confirmed. A laminate having a reflective substrate.
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002090832A JP3619896B2 (en) | 2002-03-28 | 2002-03-28 | Laminated body having light-reflective substrate |
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| Application Number | Priority Date | Filing Date | Title |
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| JP2002090832A JP3619896B2 (en) | 2002-03-28 | 2002-03-28 | Laminated body having light-reflective substrate |
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| JP3619896B2 true JP3619896B2 (en) | 2005-02-16 |
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| JP4590614B2 (en) * | 2005-01-13 | 2010-12-01 | 独立行政法人 国立印刷局 | Anti-counterfeit printed matter |
| JP4873349B2 (en) * | 2007-05-25 | 2012-02-08 | 独立行政法人 国立印刷局 | Anti-counterfeit paper |
| JP5565251B2 (en) * | 2010-10-01 | 2014-08-06 | 凸版印刷株式会社 | Personal authentication medium |
| CN115230364B (en) * | 2021-04-25 | 2024-03-29 | 中钞特种防伪科技有限公司 | Optical security element, method for designing an optical security element, security product and data carrier |
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