JPH04131295A - Thermal magnetic recording medium - Google Patents
Thermal magnetic recording mediumInfo
- Publication number
- JPH04131295A JPH04131295A JP2254912A JP25491290A JPH04131295A JP H04131295 A JPH04131295 A JP H04131295A JP 2254912 A JP2254912 A JP 2254912A JP 25491290 A JP25491290 A JP 25491290A JP H04131295 A JPH04131295 A JP H04131295A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- layer
- recording medium
- metal membrane
- opal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 229910052751 metal Inorganic materials 0.000 claims abstract description 22
- 239000002184 metal Substances 0.000 claims abstract description 22
- 239000011347 resin Substances 0.000 claims abstract description 17
- 229920005989 resin Polymers 0.000 claims abstract description 17
- 239000000758 substrate Substances 0.000 claims abstract description 10
- 239000010409 thin film Substances 0.000 claims description 12
- 239000011022 opal Substances 0.000 abstract description 19
- 230000000694 effects Effects 0.000 abstract description 9
- 238000000034 method Methods 0.000 abstract description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 abstract description 2
- 229910052802 copper Inorganic materials 0.000 abstract description 2
- 239000010949 copper Substances 0.000 abstract description 2
- 239000012528 membrane Substances 0.000 abstract 5
- 239000011295 pitch Substances 0.000 abstract 1
- 230000003405 preventing effect Effects 0.000 abstract 1
- 238000007493 shaping process Methods 0.000 abstract 1
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 6
- 238000000576 coating method Methods 0.000 description 6
- 239000000463 material Substances 0.000 description 5
- 239000011248 coating agent Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 238000007756 gravure coating Methods 0.000 description 3
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 2
- 238000001035 drying Methods 0.000 description 2
- 239000010408 film Substances 0.000 description 2
- 239000000123 paper Substances 0.000 description 2
- 229920002635 polyurethane Polymers 0.000 description 2
- 239000004814 polyurethane Substances 0.000 description 2
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 2
- 229910052718 tin Inorganic materials 0.000 description 2
- IMNIMPAHZVJRPE-UHFFFAOYSA-N triethylenediamine Chemical compound C1CN2CCN1CC2 IMNIMPAHZVJRPE-UHFFFAOYSA-N 0.000 description 2
- 229910000859 α-Fe Inorganic materials 0.000 description 2
- WRIDQFICGBMAFQ-UHFFFAOYSA-N (E)-8-Octadecenoic acid Natural products CCCCCCCCCC=CCCCCCCC(O)=O WRIDQFICGBMAFQ-UHFFFAOYSA-N 0.000 description 1
- LQJBNNIYVWPHFW-UHFFFAOYSA-N 20:1omega9c fatty acid Natural products CCCCCCCCCCC=CCCCCCCCC(O)=O LQJBNNIYVWPHFW-UHFFFAOYSA-N 0.000 description 1
- QSBYPNXLFMSGKH-UHFFFAOYSA-N 9-Heptadecensaeure Natural products CCCCCCCC=CCCCCCCCC(O)=O QSBYPNXLFMSGKH-UHFFFAOYSA-N 0.000 description 1
- 229920000178 Acrylic resin Polymers 0.000 description 1
- 239000004925 Acrylic resin Substances 0.000 description 1
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- 229910017060 Fe Cr Inorganic materials 0.000 description 1
- 229910002544 Fe-Cr Inorganic materials 0.000 description 1
- NTIZESTWPVYFNL-UHFFFAOYSA-N Methyl isobutyl ketone Chemical compound CC(C)CC(C)=O NTIZESTWPVYFNL-UHFFFAOYSA-N 0.000 description 1
- UIHCLUNTQKBZGK-UHFFFAOYSA-N Methyl isobutyl ketone Natural products CCC(C)C(C)=O UIHCLUNTQKBZGK-UHFFFAOYSA-N 0.000 description 1
- 229910016583 MnAl Inorganic materials 0.000 description 1
- 239000000020 Nitrocellulose Substances 0.000 description 1
- ZQPPMHVWECSIRJ-UHFFFAOYSA-N Oleic acid Natural products CCCCCCCCC=CCCCCCCCC(O)=O ZQPPMHVWECSIRJ-UHFFFAOYSA-N 0.000 description 1
- 239000005642 Oleic acid Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive effect Effects 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical compound [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- UPHIPHFJVNKLMR-UHFFFAOYSA-N chromium iron Chemical compound [Cr].[Fe] UPHIPHFJVNKLMR-UHFFFAOYSA-N 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 238000005034 decoration Methods 0.000 description 1
- 239000006185 dispersion Substances 0.000 description 1
- 239000010419 fine particle Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 229910052738 indium Inorganic materials 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 239000012948 isocyanate Substances 0.000 description 1
- 150000002513 isocyanates Chemical class 0.000 description 1
- QXJSBBXBKPUZAA-UHFFFAOYSA-N isooleic acid Natural products CCCCCCCC=CCCCCCCCCC(O)=O QXJSBBXBKPUZAA-UHFFFAOYSA-N 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 230000014759 maintenance of location Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 239000000113 methacrylic resin Substances 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 229920001220 nitrocellulos Polymers 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical compound CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 239000004926 polymethyl methacrylate Substances 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920003225 polyurethane elastomer Polymers 0.000 description 1
- 239000004800 polyvinyl chloride Substances 0.000 description 1
- 229920000915 polyvinyl chloride Polymers 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 238000007639 printing Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 238000007650 screen-printing Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 238000004544 sputter deposition Methods 0.000 description 1
- 238000007651 thermal printing Methods 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- XOOUIPVCVHRTMJ-UHFFFAOYSA-L zinc stearate Chemical compound [Zn+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O XOOUIPVCVHRTMJ-UHFFFAOYSA-L 0.000 description 1
Landscapes
- Credit Cards Or The Like (AREA)
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〈産業上の利用分野〉
本発明は感熱磁気記録媒体に係り、特に磁気記録層を確
実に隠蔽し、磁気記録層上に微細な万線状凹凸パターン
群を各画素毎に万線を少しずつ変えて複数群賦型して成
る微細凹凸パターン（オパール効果を有する画像、以下
オパール画像とする。[Detailed Description of the Invention] <Industrial Application Field> The present invention relates to a thermosensitive magnetic recording medium, and in particular, the present invention relates to a thermosensitive magnetic recording medium, and in particular, a magnetic recording layer is reliably hidden, and a group of fine linear uneven patterns are formed on the magnetic recording layer for each pixel. A fine uneven pattern (an image with an opal effect, hereinafter referred to as an opal image) is formed by forming a plurality of groups by slightly changing the lines for each pattern.
）を有すると共に、目視可能な記録を施すことができる
感熱磁気記録媒体に関するものである。), and also relates to a thermosensitive magnetic recording medium on which visible recording can be performed.
〈従来の技術〉
磁気記録媒体は、情報の書き込み、読み取り、書換えが
容易で、機械処理が可能であり、しかも低コストで製造
できるためクレジットカード、キャッシュカード、ｒＤ
カード、定期券、テレホンカード等のプリペイドカード
に広く利用されている。<Prior art> Magnetic recording media are easy to write, read, and rewrite information, can be processed by machines, and can be manufactured at low cost, so they are used in credit cards, cash cards, and RD.
It is widely used in prepaid cards such as credit cards, commuter passes, and telephone cards.
近年、磁気記録層に固定情報或は識別情報や可変情報を
記録するほか、カード所持者の便宜に供するために、使
用時に目視可能な情報（以下、可視情報とする）をカー
ド表面に記録することが行なわれるようになり、特にプ
リペイドカードは磁気記録と同じ価値情報が読み取り機
にかけることなく目視により知ることが可能となった。In recent years, in addition to recording fixed information, identification information, and variable information on the magnetic recording layer, information that can be seen visually during use (hereinafter referred to as "visible information") is recorded on the surface of the card for the convenience of the card holder. In particular, it has become possible to visually check the value information of prepaid cards, which is the same as that of magnetic records, without having to use a reader.
従来の感熱発色作用を利用した悪態記録層は磁気記録
層を有する磁気記録媒体上に目視可能な記録手段として
、磁気記録層と反対の基体上に設けられるか、或は磁気
記録層に重ならない部分に設けられていた、そのため、
磁気記録層面が大面積を占める場合は可視情報としての
文字、絵柄等のプレ印刷を施し、さらに後から可視情報
をサーマルへラド等で記録する時に、記録スペースに制
約を生じる欠点があった。 そこで、特開昭５２−１１
４３３３号公報、特開昭５９−１９９２８５号公報に記
載されているように磁気記録層上に直接に感熱記録層を
形成した感熱磁気記録媒体がある。A swear recording layer using a conventional heat-sensitive coloring effect is provided as a visible recording means on a magnetic recording medium having a magnetic recording layer, and is provided on a substrate opposite to the magnetic recording layer, or does not overlap the magnetic recording layer. It was provided in the part, therefore,
When the surface of the magnetic recording layer occupies a large area, there is a drawback in that the recording space is restricted when pre-printing characters, pictures, etc. as visible information, and then recording the visible information later using a thermal rad or the like. Therefore, JP-A-52-11
There are heat-sensitive magnetic recording media in which a heat-sensitive recording layer is formed directly on a magnetic recording layer, as described in Japanese Patent Laid-Open No. 4333 and Japanese Patent Laid-Open No. 199285/1983.
〈発明が解決しようとする課題〉
しかしながら、上記のような磁気記録層上に直接に感熱
記録層を形成した感熱磁気記録媒体では磁気記録層側に
は、磁気情報及び印字情報があるのみでこの面に審美性
、装飾性をもたせる有効な手段がなかった。本発明は上
述のような問題を解決すべくなされたもので、基体の同
一面側に磁気記録と共に同一の材料により審美性、装飾
性をもたせるオパール効果を有する画像形成体の立体的
なイメージ情報と可視情報を形成することが可能な磁気
記録媒体を捉供することを目的とする。<Problem to be solved by the invention> However, in the heat-sensitive magnetic recording medium in which the heat-sensitive recording layer is formed directly on the magnetic recording layer, the magnetic recording layer only has magnetic information and printed information. There was no effective means of imparting aesthetics and decoration to the surface. The present invention has been made in order to solve the above-mentioned problems, and includes three-dimensional image information of an image forming body having an opal effect that provides aesthetic and decorative properties by using the same material as well as magnetic recording on the same side of the substrate. The purpose of the present invention is to provide a magnetic recording medium capable of forming visible information.
く課題を解決するための手段〉
上記の目的を達成すべくなされた本発明は、少なくとも
基体上に磁気記録層、感熱記録型金属薄膜層、樹脂層を
順次積層してなる磁気記録媒体において、所望の角度に
設定してある微細万線状凹凸パターン群の複数個が個々
の万線方向を互いに変化させて組み合わせて成る微細凹
凸パターンが磁気記録層上の前記感熱記録型金属薄膜層
に少なくとも賦型してあることを特徴とする感熱磁気記
録媒体である。Means for Solving the Problems> The present invention, which has been made to achieve the above object, provides a magnetic recording medium in which a magnetic recording layer, a heat-sensitive recording metal thin film layer, and a resin layer are sequentially laminated on at least a substrate. A fine concavo-convex pattern formed by combining a plurality of fine line-shaped concavo-convex patterns set at desired angles with their individual line directions mutually changing is formed on at least the heat-sensitive recording metal thin film layer on the magnetic recording layer. This is a thermosensitive magnetic recording medium characterized by being shaped.
〈作用〉
本発明によれば感熱記録型金属薄膜層により磁気記録層
が確実に隠蔽できると共に、記録媒体の同一面上に形成
された同一の材料によるオパール画像の立体的なイメー
ジ情報と感熱記録像に対しそれぞれ高コントラストが得
られる。また、オパール画像の立体的なイメージ情報を
磁気記録面に設ける二とにより反対側の非磁気記録面に
もデザインを施すことができ、より装飾効果のある磁気
記録媒体を提供することができる。<Function> According to the present invention, the magnetic recording layer can be reliably hidden by the heat-sensitive recording metal thin film layer, and the three-dimensional image information and heat-sensitive recording of the opal image formed on the same surface of the recording medium using the same material can be High contrast can be obtained for each image. Further, by providing the three-dimensional image information of the opal image on the magnetic recording surface, a design can also be applied to the opposite non-magnetic recording surface, making it possible to provide a magnetic recording medium with a more decorative effect.
〈発明の詳述〉 以下、本発明について図面に基づき詳細に説明する。<Detailed description of the invention> Hereinafter, the present invention will be explained in detail based on the drawings.
第１図は本発明の感熱磁気記録媒体（１）の部分拡大断
面図であり、基体（２）上に少なくとも磁気記録層（３
）、感熱記録型金属薄１１！！１！（５）、樹脂層（６
）が設けられている。磁気記録層（３）は基体（２）上
の一部であっても、或は全面であってもよい、感熱記録
型金属薄膜層（４）は磁気記録層（３）と同じ大きさで
あっても、或は磁気記録Ｎ（３）よりも大きくてもよい
、また、必要に応じて接着剤を介して各層を形成するこ
とも可能である。FIG. 1 is a partially enlarged sectional view of a thermosensitive magnetic recording medium (1) of the present invention, in which at least a magnetic recording layer (3) is provided on a substrate (2).
), heat-sensitive recording metal thin 11! ! 1! (5), resin layer (6
) is provided. The magnetic recording layer (3) may be a part or the entire surface of the substrate (2), and the heat-sensitive recording metal thin film layer (4) has the same size as the magnetic recording layer (3). It is also possible to form each layer using an adhesive if necessary.
基体（２）はポリ塩化ビニル、ポリエステル、ポリカー
ボネート、ポリメタクリル酸メチル、ポリスチレン等の
プラスチック類、紙、合成紙などを単独でまたは複合体
として用いることができる。As the substrate (2), plastics such as polyvinyl chloride, polyester, polycarbonate, polymethyl methacrylate, and polystyrene, paper, and synthetic paper can be used alone or as a composite.
基体（２）はカード、シート状の如く記録媒体の用途に
応じて要求される物性、例えば強度、剛性、隠蔽性、光
不透過性等を考慮し、上記材料より選択することが可能
である。磁気記録層（３）は、例えばｒ Ｆｅｕｄｓ
、Ｃｏ被着ｙ−ＦｅｔＯｓ、Ｆｅ５Ｏａ、 Ｃｒ Ｏ
，、Ｆｅ Ｓ Ｆｅ−Ｃｒ、 Ｆｅ−Ｃｏ Ｓ Ｃｏ
−Ｃｒ、 Ｃｏ−Ｎｉ、 ＭｎＡｌ。The substrate (2) can be selected from the above-mentioned materials, taking into consideration the physical properties required depending on the use of the recording medium, such as a card or a sheet, such as strength, rigidity, hiding property, light opacity, etc. . The magnetic recording layer (3) is, for example, r Feuds.
, Co-coated y-FetOs, Fe5Oa, CrO
,,FeS Fe-Cr, Fe-CoS Co
-Cr, Co-Ni, MnAl.
Ｂａフェライト、Ｓｒフェライト等の磁性微粒分散液か
らなる。−船釣にプリペイドカード等の磁気記録媒体に
用いる磁気記録層（３）の保持力は、１５００〜３００
０ （Ｏｅ）、残留磁束は、１゜０〜２． ０ （Ｍａ
ｘｗｅｌｌ／ｃｍ）である。It consists of a dispersion of magnetic fine particles such as Ba ferrite and Sr ferrite. - The retention force of the magnetic recording layer (3) used in magnetic recording media such as prepaid cards for boat fishing is 1500 to 300.
0 (Oe), residual magnetic flux is 1°0~2. 0 (Ma
xwell/cm).
感熱記録型金属薄膜層（５）は例えば白色系の非磁性金
属の薄膜層が好ましく、この種の金属としては、サーマ
ルヘッド、レーザービーム、熱印字板等の発熱記録体に
よる感熱記録が可能な比較的融点の低い、スズ、ビスマ
ス、インジウム、アルミニウムやこれらの合金等がある
。この層は真空１着法、スパッタリング法、イオンブレ
ーティング法等により形成され、その厚みは０，０３０
．１μ麟とする。The heat-sensitive recording metal thin film layer (5) is preferably a thin film layer of a white non-magnetic metal, for example, and this type of metal allows heat-sensitive recording with a heat-generating recording medium such as a thermal head, a laser beam, or a thermal printing plate. Examples include tin, bismuth, indium, aluminum, and alloys of these materials, which have relatively low melting points. This layer is formed by vacuum one-layer method, sputtering method, ion blating method, etc., and its thickness is 0.030 mm.
．． Let it be 1μ.
樹脂層（６）は、例えばアクリル系樹脂、ウレタン系樹
脂、セルロースアセテート系樹脂、ニトロセルロース系
樹脂等を主成分とし、パルコート、ブレードコート、エ
アナイフコート、グラビアコート、ロールコート等のソ
ルベントコート法、或いはスクリーン印刷法などの既知
の塗布方法により塗布、乾燥により形成し、その厚さを
０．５５部割とする。The resin layer (6) is mainly composed of, for example, acrylic resin, urethane resin, cellulose acetate resin, nitrocellulose resin, etc., and is coated with a solvent coating method such as pal coat, blade coat, air knife coat, gravure coat, roll coat, etc. Alternatively, it is formed by coating and drying using a known coating method such as screen printing, and the thickness is set to 0.55 parts.
オパール画像の成型に用いるスタンパは銅版で形成され
、方向及びピッチ及び深さを少しずつ変えた万線状凹凸
パターン群からなっておりエンボス面にはニッケルメッ
キが施されており、溝のピッチは１００μｍ前後、凹凸
深さは１０〜２０μｍとすることが好ましい、このスタ
ンパを用いて感熱記録型金属ＦｉｉＭ層（５）側に加熱
押圧することによりオパール画像を形成するが、この工
程は樹脂層（６）を設ける前に行っても、設けた後に行
っても良い。また、成型性をさらに高めるために磁気記
録層（３）と、感熱記録型金属薄膜層（４）の間に第１
図に示すように樹脂層（４）を設けても良い。The stamper used to mold the opal image is made of a copper plate, and consists of a group of line-shaped uneven patterns whose direction, pitch, and depth are slightly changed.The embossed surface is nickel-plated, and the pitch of the grooves is The opal image is formed by heating and pressing the heat-sensitive recording metal FiiM layer (5) using this stamper, which is preferably about 100 μm and the depth of the unevenness is 10 to 20 μm. 6) may be performed before or after the step is provided. In addition, in order to further improve moldability, a first layer is added between the magnetic recording layer (3) and the heat-sensitive recording metal thin film layer (4).
A resin layer (4) may be provided as shown in the figure.
さらに感熱記録ヘッド適性を改善する目的で滑剤を樹脂
層（６）中に添加することも可能である。Furthermore, it is also possible to add a lubricant to the resin layer (6) for the purpose of improving suitability for a thermal recording head.
なお、磁気特性を考慮すれば磁気記録Ｎ（３）上の各層
は可能な限り薄い方が良く、全厚を１０μｍ以下とする
ことが望ましい。Note that, considering the magnetic properties, it is better for each layer on the magnetic recording layer N(3) to be as thin as possible, and it is desirable that the total thickness be 10 μm or less.
以上により感熱磁気記録媒体を得ることができる。Through the above steps, a thermosensitive magnetic recording medium can be obtained.
次に具体的な構成について以下の例について説明する。Next, the following example of a specific configuration will be explained.
なお、実施例中の「部」は１１部］を示す。In addition, "part" in an Example shows 11 parts].
ス」１劃」−
（１）磁気記録用磁性塗料の組成
りａＯ−６Ｆｅ、Ｏｓ ４０部塩酸酸ビニ
ル系樹脂 １０部（補水化学■製エスレ
ックＡ）
飽和ポリエステル樹脂 ５部（東洋紡■
製バイロン１０３）
ポリウレタンエラストマー ７部（日本ポ
リウレタン■製Ｎ−２３０４）オレイン酸
５部トルエン
３０部メチルイソブチルケトン ３０部
イソシアナート硬化剤 ３部（日本ポリ
ウレタン■製コロネートＨＬ）トリエチレンジアミン
０．５部（２）樹脂層の塗液組成
ステアリン酸亜鉛 １部メタクリル
樹脂 ８部（ローム＆ハラス社製
パラロイドＡ−１，１）トルエン
９部厚さ１８８μｍの白色ＰＥＴシート上に、
上記（１）の組成からなる磁気記録用磁性塗料をグラビ
アコート法にて塗布し、厚さ１５μｍの磁気記録層を形
成した。次にウレタン系樹脂をグラビアコート法にて塗
布し３μｍの膜厚に設けて樹脂層とし、これを乾燥硬化
させた後、スズを０．０５μｍの厚さに真空蒸着法によ
り蒸着し、悪態記録型の金属薄膜層を形成した。さらに
上記（２）の組成による樹脂層塗料をグラビアコート法
にて塗布し、乾燥し、膜厚が２μｍになるように形成し
た。この上に第２図に示すような断面構成のオパール画
像成型用スタンパにて７０°Ｃにて成型し、４μｍの凹
凸の深さのオパール画像を得、本発明の感熱磁気記録媒
体とした。(1) Composition of magnetic paint for magnetic recording aO-6Fe, Os 40 parts Vinyl hydrochloride resin 10 parts (S-LEC A manufactured by Hosui Kagaku ■) Saturated polyester resin 5 parts (Toyobo ■
Byron 103) Polyurethane elastomer 7 parts (N-2304 manufactured by Nippon Polyurethane) Oleic acid
5 parts toluene
30 parts methyl isobutyl ketone 30 parts isocyanate curing agent 3 parts (Coronate HL manufactured by Nippon Polyurethane) Triethylenediamine
0.5 parts (2) Resin layer coating liquid composition Zinc stearate 1 part Methacrylic resin 8 parts (Paraloid A-1,1 manufactured by Rohm & Haras) Toluene
9 parts on a white PET sheet with a thickness of 188 μm,
A magnetic coating for magnetic recording having the composition (1) above was applied by gravure coating to form a magnetic recording layer with a thickness of 15 μm. Next, a urethane resin was applied using a gravure coating method to a thickness of 3 μm to form a resin layer. After drying and curing, tin was deposited to a thickness of 0.05 μm using a vacuum evaporation method to record swear words. A metal thin film layer of the mold was formed. Further, a resin layer coating having the composition (2) above was applied by gravure coating and dried to form a film having a thickness of 2 μm. This was then molded at 70° C. using an opal image molding stamper having a cross-sectional configuration as shown in FIG. 2 to obtain an opal image with a depth of 4 μm, which was used as the thermosensitive magnetic recording medium of the present invention.
上記の実施例の構成の感熱磁気記録媒体は金属′ＦｉＩ
ｌＩ１層により磁気記録層が確実に隠蔽できていた。The thermosensitive magnetic recording medium having the structure of the above embodiment is a metal 'FiI
The magnetic recording layer was reliably hidden by the lI1 layer.
また、この記録媒体に対して樹脂層側からサーマルヘッ
ドで感熱記録を施したところ、記録媒体の同一面上に形
成された金属ｙｉ膜層によるオパール画像と感熱記録像
に対しそれぞれ高コン）−ラストが得られた。また、こ
の記録媒体に対して磁気の書き込みと読み取りを施した
ところ、オパール画像の４μｍの凹凸による磁気特性へ
及ぼす影響はオパール画像の溝のピッチが１００μｍ前
後のため殆どなかった。In addition, when thermal recording was performed on this recording medium from the resin layer side using a thermal head, it was found that the opal image and the thermal recording image due to the metal YI film layer formed on the same surface of the recording medium had high contrast). The last one was obtained. Further, when magnetic writing and reading were performed on this recording medium, the 4 μm unevenness of the opal image had almost no effect on the magnetic properties because the pitch of the grooves of the opal image was around 100 μm.
〈発明の効果〉
本発明によれば金属薄膜層により磁気記録層が確実に隠
蔽できると共に、記録媒体の同一面上に形成された同一
の材料によるオパール画像の立体的なイメージ情報と感
熱記録像に対しそれぞれ高コントラストが得られる。ま
た、オパール画像を設けることにより記録媒体の識別が
極めて容易になり審美性、装飾性が増し、偽造防止効果
が高まる。さらにはオパール画像の立体的なイメージ情
報が磁気記録層上に設けられることにより反対側の非磁
気記録面には別のデザインを施すことができるようにな
り、より装飾効果のある磁気記録媒体を折供することが
できる。<Effects of the Invention> According to the present invention, the magnetic recording layer can be reliably hidden by the metal thin film layer, and the three-dimensional image information of the opal image and the thermal recording image formed on the same surface of the recording medium using the same material can be High contrast can be obtained for both. Furthermore, by providing an opal image, identification of the recording medium becomes extremely easy, the aesthetics and decorativeness are increased, and the anti-counterfeiting effect is enhanced. Furthermore, by providing the three-dimensional image information of the opal image on the magnetic recording layer, it is now possible to apply a different design to the opposite non-magnetic recording surface, creating a magnetic recording medium with a more decorative effect. It can be offered as an offering.
第１図は本発明の実施例による感熱磁気記録媒体の構成
を示す部分拡大断面図であり、第２図はオパールスタン
パの断面図である。
・・・感熱磁気記録媒体
・・・基体
・・・磁気記録層
・・・樹脂層
・・・金属薄膜層
・・・樹脂層
第１図
／
第２図FIG. 1 is a partially enlarged sectional view showing the structure of a thermosensitive magnetic recording medium according to an embodiment of the present invention, and FIG. 2 is a sectional view of an opal stamper. ...Thermosensitive magnetic recording medium ...Substrate ...Magnetic recording layer ...Resin layer ...Metal thin film layer ...Resin layer Fig. 1/ Fig. 2
Claims (1)
薄膜層、樹脂層を順次積層してなる磁気記録媒体におい
て、所望の角度に設定してある微細万線状凹凸パターン
群の複数個が個々の万線方向を互いに変化させて組み合
わせて成る微細凹凸パターンが該磁気記録層上の感熱記
録型金属薄膜層に少なくとも賦型してあることを特徴と
する感熱磁気記録媒体。(1) In a magnetic recording medium in which a magnetic recording layer, a heat-sensitive recording metal thin film layer, and a resin layer are sequentially laminated on at least a substrate, a plurality of fine line-like uneven patterns set at a desired angle are formed. 1. A thermosensitive magnetic recording medium, characterized in that a fine concave-convex pattern formed by changing the direction of individual lines and combining them is formed at least on a thermosensitive recording metal thin film layer on the magnetic recording layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2254912A JPH04131295A (en) | 1990-09-25 | 1990-09-25 | Thermal magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2254912A JPH04131295A (en) | 1990-09-25 | 1990-09-25 | Thermal magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04131295A true JPH04131295A (en) | 1992-05-01 |
Family
ID=17271579
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2254912A Pending JPH04131295A (en) | 1990-09-25 | 1990-09-25 | Thermal magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04131295A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553412A (en) * | 2013-10-24 | 2015-04-29 | 白纱科技印刷股份有限公司 | Wheel-rolled type earlier extremely-thin word anti-fake gold stamping collinear operation printing method and printed product thereof |
-
1990
- 1990-09-25 JP JP2254912A patent/JPH04131295A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104553412A (en) * | 2013-10-24 | 2015-04-29 | 白纱科技印刷股份有限公司 | Wheel-rolled type earlier extremely-thin word anti-fake gold stamping collinear operation printing method and printed product thereof |
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