WO1997044783A1 - Magnetic recording medium - Google Patents

Magnetic recording medium Download PDF

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Publication number
WO1997044783A1
WO1997044783A1 PCT/JP1996/002033 JP9602033W WO9744783A1 WO 1997044783 A1 WO1997044783 A1 WO 1997044783A1 JP 9602033 W JP9602033 W JP 9602033W WO 9744783 A1 WO9744783 A1 WO 9744783A1
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WO
WIPO (PCT)
Prior art keywords
magnetic
signal
magnetic recording
recording layer
layer
Prior art date
Application number
PCT/JP1996/002033
Other languages
French (fr)
Japanese (ja)
Inventor
Hisao Ito
Original Assignee
Kabushiki Kaisha I.C.M.
Murata, Yoshitomi
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Kabushiki Kaisha I.C.M., Murata, Yoshitomi filed Critical Kabushiki Kaisha I.C.M.
Priority to AU64712/96A priority Critical patent/AU6471296A/en
Publication of WO1997044783A1 publication Critical patent/WO1997044783A1/en

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Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/008—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires
    • G11B5/00804—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets
    • G11B5/00808—Recording on, or reproducing or erasing from, magnetic tapes, sheets, e.g. cards, or wires magnetic sheets magnetic cards
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06K—GRAPHICAL DATA READING; PRESENTATION OF DATA; RECORD CARRIERS; HANDLING RECORD CARRIERS
    • G06K19/00—Record carriers for use with machines and with at least a part designed to carry digital markings
    • G06K19/06—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code
    • G06K19/06187—Record carriers for use with machines and with at least a part designed to carry digital markings characterised by the kind of the digital marking, e.g. shape, nature, code with magnetically detectable marking
    • G06K19/06196—Constructional details
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/74—Record carriers characterised by the form, e.g. sheet shaped to wrap around a drum
    • G11B5/80—Card carriers
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/852—Orientation in a magnetic field
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B23/00—Record carriers not specific to the method of recording or reproducing; Accessories, e.g. containers, specially adapted for co-operation with the recording or reproducing apparatus ; Intermediate mediums; Apparatus or processes specially adapted for their manufacture
    • G11B23/28—Indicating or preventing prior or unauthorised use, e.g. cassettes with sealing or locking means, write-protect devices for discs
    • G11B23/288—Protecting disks from being written or overwritten

Definitions

  • a magnet for providing a magnetic signal on a surface of a magnetic field is provided.
  • my si book a magnet for providing a magnetic signal on a surface of a magnetic field.
  • a magnet provided with a magnet for describing a magnetic signal on a surface thereof is now widely used as a magnetic card.
  • magnetic cards have been used in various fields as prepaid cards and credit cards, and their demand has been increasing.
  • the magnetic layer of the thread is formed on the base material in a straightforward manner, and many of the threads are made by diversion. Then, write the magnetic signal on the magnetic fiber of the thread (as shown below. First, paint the magnetic material on the mountain: Eii ⁇ Before using the magnetic material) The process of conducting the magnetic field in a constant magnetic field, stabilizing the magnetism through a crane furnace, and writing the mmi:
  • the ⁇ em code written in the previous ⁇ ⁇ accumulates medulla according to the direction of magnetization of each portion of the magnetic layer ⁇ , and The direction is to be rewritten to a forehead using a magnetic reader.
  • the invention disclosed in that application is a magnetic material on top of Takeshi!
  • the first step of forming the layer is performed, the magnetic field is written in a state where the magnetic layer is not yet in the second state, the second IP presentation is performed, and the magnetic signal is fixed immediately after the completion of the second: 1 step.
  • the magnetic eii ⁇ of the present invention uses the sparse / dense pattern to describe a magnetic signal. That is, the invention filed earlier by H. Ihara uses the density of magnetic particles as a magnetic symbol, and expresses in a combined density pattern the magnetization of each part in the magnetic wing. The direction of the magnetic field is used as the magnetic ⁇ lenm number, and the combination of the magnetic field is completely different from L and that of the magnetic field ⁇ ! ⁇ .
  • the magnetic signal written by this new magnetic signal writing method Does not erase or rewrite the transcript, so it also performs the following: That is, when the magnetic card is ⁇ ffl, the ability to rewrite the observation signal is not possible at all.
  • an object of the present invention is to provide a magnetic fiber embedded in a magnetic signal using the method of writing a new magnetic signature filed earlier in the present application, without changing the ⁇ ? Backlash, ⁇ ⁇ . 3 ⁇ 4 ⁇ to be able to break ⁇ .
  • the erasing and rewriting of the magnetic suit can be performed or the magnetic function can be destroyed.
  • a magnetic material is applied on the magnetic layer to form a magnetic layer, and the first layer I is formed, and the magnetic wings perform a second layer II in which a magnetic signal is included beforehand. 3rd to make the magnetic signal fixed
  • the magnetic signal is written while the magnetic signal is not imt state. To fix the im signal. In this case, from the time when the 3 ⁇ 43 ⁇ 4m signal is ⁇ to the time when the magnetic ⁇ isi3 ⁇ 4 is generated is within 10 seconds. If the ⁇ takes 10 seconds, the bit that has not been converted will be lost, or it will be the exact word of the signal. In order to maintain the accuracy of the magnetic signal, it is particularly preferable to set this to within 2 seconds.
  • the simplest means is to use polyethylene resin, polypropylene resin, polyvinyl chloride resin, and vinyl chloride copolymer for winged castles.
  • the magnetic signal was read at the time of reading the magnetic signal and the unnecessary magnetic signal was read.
  • ⁇ Destroy in steps. In this rupture stage, heat is given to the entire surface or the m3 ⁇ 4 portion of the magnet so that it can destroy only the word which does not give an apology. Narrow down as I can do it. Since the magnetic wings are joined together by resin, they can be destroyed only by magnetism without harm. Recent magnetic cards have good prints on the card surface, but they also have the advantage that only the mm layer can be destroyed.
  • the destruction of ⁇ refers to the destruction of the magnetic layer at a distance that cannot be 3 ⁇ 4 1 ⁇ ⁇ ⁇ ⁇ l l l l l. Therefore, the time required for the destruction of the magnetic flux 15 is short, since the magnetic flux does not need to be broken.
  • ⁇ IB ⁇ J may be in the form of particles, which may be easily described later.
  • the particle power in the magnetic field 2 ⁇ 1 is destroyed by the crane BU.
  • the magnetic flux can be destroyed by the following means in addition to mixing with the magnetic ISi like ⁇ 1 itself.
  • the magnetism provided with the positive I® is destroyed by reversing the magnetism with the same magnetic leader as above, which has a fractured step.
  • To form rupture I in ⁇ ⁇ ⁇ genus use M ⁇ m, printing, coating, etc. It is preferable to use vacuum deposition in order to form an easily genus layer thinly.
  • the genus layer may be formed to the thickness of ⁇ ", and may be formed with ⁇ 1 own technology.
  • thermoplastic resin such as polyethylene resin, polypropylene resin, polyvinyl chloride resin, vinylino chloride, vinyl copolymerized polyester resin, and polyurethane resin is 23 ⁇ 4 ⁇ 0: The same effect can be obtained by forming with resin. To form a broken piece with resin, use E printing or coating.
  • the destruction of the breach is not limited to the test method of oneself.
  • a low magnetic material such as Permalloy or Sendust
  • the protection formed by using a low-tension magnetic material acts as a magnetic shield, and must be a magnetic reader / writer with a high tt ⁇ (signals that cannot be raised can be raised, and forgery of the ⁇ ⁇ is not possible). Effective for prevention.
  • the magnetic field of the present invention can be erased, rewritten, or rewritten. It can be prevented.
  • the inability to rewrite the self-sign symbol can prevent the last name ⁇ 13 ⁇ 45 ⁇ .
  • the magnetic difficulties of the present invention are not limited to before and after ⁇ , in other words, regardless of whether the magnetic card is in the power shelf or not, the job card's ⁇ t, illegal ⁇ ⁇ Can be prevented.
  • FIG. 1 shows a first embodiment of the present invention. It is the figure which expressed the cross section of the fiber in ⁇ .
  • FIG. 2 is a diagram showing a cross section of ⁇ ⁇ in the second difficult example of the present invention as ⁇ .
  • FIG. 3 is a diagram showing a cross section of the magnet I of the third embodiment of the present invention as ⁇ .
  • FIG. 4 is a diagram illustrating a first example of the magnetic wings of the present invention. It is a diagram showing the cross section after breaking as ⁇ 5WJ.
  • FIG. 5 is a diagram showing the output of signal from ⁇ ⁇ ⁇ ⁇ in the method according to the present invention.
  • FIG. 6 is an output chart from the signal after the method (signal) according to the present invention has been written and the magnetic signal has been canceled by the corresponding read / write method.
  • FIG. 7 is a diagram showing a plan view of a signal ⁇ right arrow over (W) ⁇ in FIG.
  • FIG. 1 a first crane example of the magnet of the present invention will be described. Note that the same parts are denoted by the same ⁇ in each male example, and the description of the movement is omitted.
  • Xie is a white polyester film with a thickness of 188.
  • 3 is a magnetic en layer.
  • the thickness of 71 ⁇ 2m was formed by applying the magnetic material shown below under mm m.
  • MI BK 60 dragon part Toluene 60 dragon part In addition, TS ⁇ vinyl resin is included as a resin to be included in the translation 3.
  • Xie is a white polyester film, 188 cm thick.
  • 3 is 3 ⁇ 43 ⁇ 4®.
  • MI BK 60 Dragon part Toluene 60 Dragon part And magnetic wing 3 ⁇ 4 Write a magnetic signal of a certain frequency before layer 3 or 3 and watch 1. E ⁇ S3 1.0 seconds later: Present went.
  • FIG. 3 a third example of the magnetic wing of the present invention will be described.
  • the magnetic fiber of the third example of Sfe has a protective layer 4 having a thickness of 3 ⁇ m, which is further superposed on the magnetic layer 3 of ⁇ of the first example.
  • the recitation 4 was formed by applying the following paint of Itoshiro after the magnetic signal writing and the magnetic material mmm 3) were sufficiently crane.
  • the Ninja River No. 3 has been identified, and the magnum ⁇ if word has been standardized.
  • the present invention makes it possible to rewrite a magnetic signal with a ⁇ ! Capability.
  • the prevention of unauthorized use of the magnetic card and the accompanying improper use will be a key feature.

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Paints Or Removers (AREA)

Abstract

A magnetic recording medium wherein erasing and rewriting of magnetic recording signals are impossible. Magnetic recording signals are written by preparing a magnetic recording layer on a substrate by coating the same with magnetic coating material, writing magnetic signals on the recording layer while it is still in an undried state, and immediately drying the recording layer to thereby fix the magnetic signals. According to the above procedures, the magnetic particles form a pattern composed of coarse and fine particles in the magnetic records and the magnetic recording signals are fixed. In this magnetic recording medium, incorporation of resins such as polyethylene or polypropylene in the magnetic recording layer or provision of a readily melting metal layer between the substrate and the magnetic recording layer enables the breakage of the magnetic recording layer. In this magnetic recording layer, therefore, the magnetic recording layer can be broken and the magnetic recording signals recorded on the magnetic recording layer are fixed, which prevents rewriting of magnetic recording signals irrespectively of whether the magnetic recording layer has been broken or not, thus enabling the prevention of illegal use of magnetic cards.

Description

明 細 書  Specification
発明の名称 技術分野 Title of the invention Technical field
本発明は、 磁気信号を¾lするための を の表面に設けた磁^！己 si本に関する。  According to the present invention, a magnet for providing a magnetic signal on a surface of a magnetic field is provided. About my si book.
背景漏 Background leakage
磁気信号を言 Ξϋする磁 細を謝の表面に設けた磁^ は、現在磁気 カードとして広く用いられている。近年では、 このような磁気カードはプリペイ ドカー卜"ゃクレジットカードとして様々な分野で用いられており、 その需要力 々高まっている。  A magnet provided with a magnet for describing a magnetic signal on a surface thereof is now widely used as a magnetic card. In recent years, such magnetic cards have been used in various fields as prepaid cards and credit cards, and their demand has been increasing.
絲の磁键¾¾ ^は、 基材の上に直嫌 か形成され 多くの はそ の上に保翻カ骰けられたものである。 そして、 絲の磁磁 ΒΙΙί本への磁気信 号の書込み ( 下のように れている。即ち、 先ず嶽才上に磁髓料を塗^- る: Eii^^ 磁«料か する前に一定の磁場内で磁場酉响を行う工程、 鶴炉を通して磁 '醒料を 定化させる l 雄て、 そして、 mmi を書込む: ^ れて觸言号の書込み力 れる。  The magnetic layer of the thread is formed on the base material in a straightforward manner, and many of the threads are made by diversion. Then, write the magnetic signal on the magnetic fiber of the thread (as shown below. First, paint the magnetic material on the mountain: Eii ^^ Before using the magnetic material) The process of conducting the magnetic field in a constant magnetic field, stabilizing the magnetism through a crane furnace, and writing the mmi:
この «の:^去で書込まれた麵 em言号は、 図 7で示すように、、、磁^ ΐΞϋ層 の各部分の磁化の方向により髓を蓄積するものであり、 そして、 この磁化の方 向は磁気リ一ドラィタを用い ま'額に書き換えられるものである。  As shown in FIG. 7, the 麵 em code written in the previous ^: ^ accumulates medulla according to the direction of magnetization of each portion of the magnetic layer 、, and The direction is to be rewritten to a forehead using a magnetic reader.
従って、 の磁^ への磁気信号の書込み方法で書込まれた„ は、麵言号の消去及ひ? ϊ書込みを容易に行うこと力河能となるため、 麵済み の磁気カードの再利用力何能となるという利点を持っている。  Therefore, „written by the method of writing a magnetic signal to the magnetic field can be erased and written easily. It has the advantage of being a power.
し力、し、 その一^、磁^! ¾ϋに言 ¾1された信号の消去及ひ ¾^s¾¾¾への 新たな信号の書込みか可能であることは、磁^! ¾ii言号 き換えによる M 力 The fact that it is possible to erase the signal ¾1 and write a new signal to ¾ ^ s¾¾¾ is possible by changing the word 磁! ¾ii. Power
―ドの偽 河能なことを意味し、棚済 力一ドの不正麵カ河能となる 原因にもなりうる。 また、麵 言号の書き換え力河能であ liま'、 綱済み磁 気力一ドのみならず綱中若しくは新品の醜力一ドの磁 言号を書き換え、 不正使用を行うこともできる。 このような磁気カードの不正 は、 力一ド発行会社やシステム運営会社に莫 大な損害を生じさせるのみならず信用嫩冓の^!^^させ、 大きな社会 を 生むに至っている。 -This means that the river is fake, and it can also be a cause of fraudulent river power. In addition, the rewriting power of the language can be used to rewrite not only the pre-installed magnetic field, but also the renewed version of the word in the class or a new ugly field. Such fraudulent use of magnetic cards not only causes enormous damage to force issuing companies and system operating companies, but also causes the credibility of the company to increase, creating a large society.
このような磁気カードの不正綱を防止すべく、磁 言綱を 2重、 3重に 飾しダミー信号を言 e ^して、 iB の信号をカムフラージュする技歸くもちいら れている。 しかし、 JB見の信号を に秘匿することは瞧であるため、磁気力 一ドの不正麵を に防止する ¾ίτ了は雜しな 、というの力職である。 このような現状を† ¾するため、 本出願の出原 ΙΛは と全く異なる磁^ |¾1 体への磁気信号の書込み方法に関する出願を行った。  In order to prevent such a fraudulent class of magnetic cards, the technique of decorating the class with double or triple layers, saying the dummy signal e ^, and camouflaging the signal of iB is used. However, since it is 瞧 to conceal the signal of JB's view to, it is a powerful job that 麵 τ 了 す る 雜 す る す る す る す る す る す る す る 防止 す る す る 防止 す る す る 磁 気 磁 気 磁 気 磁 気. To address this situation, an application was filed for a method of writing a magnetic signal to a magnetic body that is completely different from the source of the present application.
その出願で開示された発明は、 嶽才の上に磁' ^料を^?し磁^！ 層を形成 する第 1工程を行 ゝ、磁 Βϋ が未 ¾m態のうちに ¾ 信号の書込みを行う 第 2 IP呈を行い、 そして第 2：1¾了後直ちに を鶴させ磁気信号を 固定化させる第 3工程を行う磁気言^:の磁気信号書込み方法、及びその方法に より磁^！ ¾Ιί言^ ^込まれた である。  The invention disclosed in that application is a magnetic material on top of Takeshi! The first step of forming the layer is performed, the magnetic field is written in a state where the magnetic layer is not yet in the second state, the second IP presentation is performed, and the magnetic signal is fixed immediately after the completion of the second: 1 step. A magnetic signal writing method of magnetic word ^: for performing the third step, and a magnetic signal is written by the method. ¾ΙίWords ^ ^
この雄で磁気信号を書込むと、 mm m (磁性インク） 中の 磁性粒子か移動し、 磁 ¾¾®中に磁性粒 密度か高レ、部分と低 、部 性じ て磁性粒子の疎密パターンができる。 この発明の磁 eii^は、 この疎密パター ンを用いて磁気信号を言 BI¾するものである。即ち、 先に本出原 ΐλが出願した発明 は、磁性粒 疎密を磁歸 言号として用 、そしてそ«み合わせの疎密バタ ーンで を言 する点で、 磁翅 中の各部分の磁化の方向を磁^ lenm号 として用いその組み合わせて を言 して L、た の磁^!^^と、 全く異な り、磁短^：の新^を験するものであるといえる。  When writing a magnetic signal with this male, the magnetic particles in the mmm (magnetic ink) move, and the density of the magnetic particles is high, the density of the magnetic particles is low, and the density pattern of the magnetic particles is partially it can. The magnetic eii ^ of the present invention uses the sparse / dense pattern to describe a magnetic signal. That is, the invention filed earlier by H. Ihara uses the density of magnetic particles as a magnetic symbol, and expresses in a combined density pattern the magnetization of each part in the magnetic wing. The direction of the magnetic field is used as the magnetic ^ lenm number, and the combination of the magnetic field is completely different from L and that of the magnetic field ^! ^^.
この新しい方法で磁^ ΙΞ^Ιへの磁気信号の書込みを行うと、 mm m^ 疆には磁 ^ 中の磁性粒子力 §定させられるため、磁 £1¾ に言 Ξϋされ た磁^! 言 ^固定させられる。つまり、磁^ ie ^言号の消去、書き換えか不 可能となる。 それは、磁^!翻議 は磁^！翻中の磁性粒子か周定される ためである。従って、 この新しい觸 方法によ iiま'、磁^! ¾im号の え カ^!食 ¾となり、 カードの不正 ^力 ^t ^T能となる。  When a magnetic signal is written to the magnet ^ ΙΞ ^ Ι using this new method, the magnetic particle force in the magnet ^ can be determined in mm m ^ 、, and the magnetic ^! ^ I will be fixed. That is, it is impossible to erase or rewrite the magnetic symbol. It is magnetic ^! This is because the magnetic particles in transit are determined. Therefore, this new way of touching will give you a magnetic !!
しかし、 この新しい磁気信号の書込み方法で磁気信^镥込まれた磁^ ΙΒ^Φ は、 翻 言号の消去、書き換えカ^きないため、 次のような も贿する。 それは、 磁気カードの^ fflの際に、 觀信号の書き換え力く全くできないことであ る。 However, the magnetic signal written by this new magnetic signal writing method Does not erase or rewrite the transcript, so it also performs the following: That is, when the magnetic card is ^ ffl, the ability to rewrite the observation signal is not possible at all.
つまり、 絲の磁気カードでは、 ¾^カード ^it時に磁気信号を書込み、 そし て、 カードの翻の搬、職リーダライタで删済みの部分の麵 言 号を消去するとともにそこに新たな磁気信号を ¾d でいる。  In other words, with a magnetic card made of yarn, a magnetic signal is written at the time of the ^^ card ^ it, and then the card is transferred, the word that has already been written by the work reader / writer is erased, and a new magnetic signal is written there. Is ¾d.
しかし、 磁^！ 言"^涸定化された麵 はこのような擁は^!能 である。 これでは、 時に書込まれた磁気信^^永久に残ってしまい、磁気力 -ドが繊に麵可能となるという不都合力性じる。  However, magnetic ^! The word "^ depleted 麵 has such a feature ^! Ability. In this case, the written magnetic signal ^^ remains forever, and the magnetic force can be delicately controlled. The inconvenience of that.
従って、 本発明の目的は、 本出原 ΙΛ^'先に出願した新たな磁歸 言号の書込 み方法を用いて磁気信 瀋込まれた磁韻纖を、 その^?をそのままにしな がら、 ±ΙΞΡ。¾Ιを解袂できるように ¾^することである。  Therefore, an object of the present invention is to provide a magnetic fiber embedded in a magnetic signal using the method of writing a new magnetic signature filed earlier in the present application, without changing the ^? Backlash, ± ΙΞΡ. ¾ ^ to be able to break 解.
発明の開示 Disclosure of the invention
のように、本出原 ΙΛ^先に出願した方法 短 言号を だ本発明 の基礎となる磁^!^:では、麵^ ft^涸定化されている。 そして、 技細 ィ 向を磁 Β ^言号として 、たのと異なり、 その磁 言号は磁性 f立 TO碟密として §己憶される。  As mentioned above, Hongenhara ^^ The method of filing the previously filed short word is demagnetized 磁 ^ ft ^ in the magnet ^! ^: Which is the basis of the present invention. And, unlike the technical direction as a magnetic symbol, the magnetic symbol is memorized as a magnetic f standing TO density.
この磁 £ ^本では、 磁翅 の書き換えのためには磁性粒子を移動させる必 要がある。 しかし、 磁 翻力職した後では磁^ IS^lの中で磁性粒子か面 定化されるため、磁 立 移動は全くできない。  In this magnetic book, it is necessary to move magnetic particles to rewrite the magnetic wing. However, the magnetic particles cannot be moved at all because the magnetic particles are immobilized in the magnetic field after performing the magnetic flux.
本出願の出原 ΙΛは、 ±iep。 を嫩するため鋭意研究 け、 m ^ の書き換えか^!能なのでであ (ま'、麵翻自体を破壊す ま いと 侖 に達し、以下の発明を誠させた。  The origin of this application is ± iep. We have to study diligently to renounce the m ^, because it is the rewriting of m ^ or ^! Ability.
即ち、 本発明の翻 は、磁 suit号の消去及び再書込みか^ r能であ ると共に、磁^ ΙΞϋ の破壊を可能としたものである。  That is, according to the present invention, the erasing and rewriting of the magnetic suit can be performed or the magnetic function can be destroyed.
ii 信号の消 ひ 書込みを可能とするには の方法により ^信号の書 込みを行えばよい。つまり、 の上に磁 料を塗布し磁^! ¾i層を形 fifc る 第 1 I 呈を行 、、磁翅^が未 うちに磁気信号 込みを行う第 2 II呈を行 \ そして直ちに磁 翻を魏させ磁気信号を固定化させる第 3ェ 程を行う の iam信号 込み方法により磁気信号を書込めばょ この観信号の書込み方法では、磁 ¾ι®が未 imt態のうちに磁気信号を 書込む 呈を行 そし τϋ:ちに磁^ leis を させ i m信号を固定化するェ 程を う。 この 、 ¾¾m信号を^^でから磁^ isi¾ を^するまでの ¾¾ は 1 0秒以内にする' がある。 この^^が 1 0秒を ると、 していない 翻 のビッ卜がへたり、 ¾^だ ¾^信号の正確な言 く瞧となるため である。 尚、 磁気信号の正確性を保っためには、 この を2秒以内とするのが 特に好ましい。 ii To erase and write a signal, write a ^ signal by the method described in. In other words, a magnetic material is applied on the magnetic layer to form a magnetic layer, and the first layer I is formed, and the magnetic wings perform a second layer II in which a magnetic signal is included beforehand. 3rd to make the magnetic signal fixed In this method of writing the observation signal, the magnetic signal is written while the magnetic signal is not imt state. To fix the im signal. In this case, from the time when the ¾¾m signal is ^^ to the time when the magnetic ^ isi¾ is generated is within 10 seconds. If the ^^ takes 10 seconds, the bit that has not been converted will be lost, or it will be the exact word of the signal. In order to maintain the accuracy of the magnetic signal, it is particularly preferable to set this to within 2 seconds.
また、 の"^についてのみ翻 2^1力く未½ |^態のうちに磁翅己 願号を書込み、 そして、 他 分については縣の方法 τ¾ ^信号を書込むこ とも可能である。 このような職信号の書込みを行えば、磁 eniの^^につ 、ては磁気信号を固定化し、他の部分につ L、ては额ぇ可能とすること力くできる。 そして、 麵翻の破壊は、以下の手段により可能となる。 それは、麵己 纖の fi^^Sの内部又は外部に何ら力 馳を設けることである。  In addition, it is possible to write the magnetic wing self-application in the state of “|||||||||||||||||||||||||||||||||||||| [||||||||||||||||||| [|||||||||||||||||| [||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||| [||||||||||||||||||||||| [|||||||||| has ||||||||||||||| has to have been written | By writing such a job signal, it is possible to fix the magnetic signal for ^^ of the magnetic eni and to enable the magnetic signal for other parts. The destruction of the fiber can be achieved by the following means: It is to provide some kind of force inside or outside the fi ^^ S of the self fiber.
最も簡単な手段としては、磁翅 城物に としてポリェチレン樹 脂、 ポリプロピレン樹脂、 ポリ塩化ビニル樹脂、塩化ビニル '赚ビニル共重合 The simplest means is to use polyethylene resin, polypropylene resin, polyvinyl chloride resin, and vinyl chloride copolymer for winged castles.
^ ポリエステル樹脂、 ボリウレタン樹脂等の熱 性樹脂の内の 1 ¾Χは 2種 hを加えるのがよい。 これらを加えると、磁^ ¾i層の瞧を謝の より 大きく下げること力《できる。 いずれも磁^ ISilSを形^る磁性ィンクに額に 溶け込むので、 麵 £ 1 に額に λできる。従って、 の磁體料に ±1己 樹脂を混合するだけで、極めて簡単にこの目的力 ¾t^ eきる。 そして、 このよう な物質を含む磁 ¾1 を! t il ^！騰は、磁^ | の全面又は縱の"^ に熱を作用させられる 磁^ ΙΒϋ 破解段を有する磁気リ一ダライタと合わ せて細するのか ましい。 ^ It is better to add 2 kinds of h to 1% of the thermal resin such as polyester resin and polyurethane resin. By adding these, it is possible to significantly lower the ¾ of the magnetic layer. Both melt into the magnetic ink, which forms the magnetic ISilS, so that λ can be reduced to 1 £ 1. Therefore, just by mixing ± 1 resin into the magnetic material, the desired force 目的 t ^ e can be obtained very easily. And a magnetic substance containing such a substance ¾1! Til ^! It is better to reduce the rise in combination with a magnetic reader / writer that has a magnetic ΙΒϋ rupture stage that can apply heat to the entire surface of the magnetic | or the vertical ^.
つまり、 磁気力一ドの の ¾1渡、 その リ一ダラィ夕で磁気 »言号を読 み取り、 不要になった磁気信号を言 2ϋしていた磁^ を磁気リ一ダライタに 備えられた破^段で破壊する。 この破鮮段は、謝に を与えない Τ¾気 言 のみを破壊できる の熱を磁^ の全面又は m¾部位に与えられる ものであり、 例えば、 サ一マルへッドゃレーザーを鹏破醉段として細する こと力できる。磁翅翻は樹脂力 合されて 1 ^くなつているので、謝 を傷つけることなく磁^! のみ 的に破壊できることとなる。最近の磁 気カードでは、 カード表面に美しい印刷がなされていることカ哆いが、 mm 層のみを破壊でき ま'その印刷カ つかなレ、ようにできるという利益もある。尚、 ここで言う麵 の破壊とは、磁 ¾1 ^カ稱 i^fflできない離に磁^!己 録層を破壊することを麟し、 の カ靈された もこれに含む ものである。従って、磁 翻の な破嫩不要なので、磁^ 15^ の破壊 に要する時間は短時間で済む。 In other words, at the time of the magnetic force reading, the magnetic signal was read at the time of reading the magnetic signal and the unnecessary magnetic signal was read. ^ Destroy in steps. In this rupture stage, heat is given to the entire surface or the m¾ portion of the magnet so that it can destroy only the word which does not give an apology. Narrow down as I can do it. Since the magnetic wings are joined together by resin, they can be destroyed only by magnetism without harm. Recent magnetic cards have good prints on the card surface, but they also have the advantage that only the mm layer can be destroyed. Here, the destruction of 麵 refers to the destruction of the magnetic layer at a distance that cannot be ¾ 1 カ カ カ カ l l l l l. Therefore, the time required for the destruction of the magnetic flux 15 is short, since the magnetic flux does not need to be broken.
また、 ±IB^ Jを粒子状として、後 ^明する易 ¾ ^としてもよい。 この は、磁^!翻に熱を加えると磁 2^1中の粒子状の 力糧して鶴 言 BU 力 壊される。  Also, ± IB ^ J may be in the form of particles, which may be easily described later. When this heat is applied to the magnetic field, the particle power in the magnetic field 2 ^ 1 is destroyed by the crane BU.
更に、磁^ ΕίϋΙの麵破壊は、 ±1己のように磁^ ISi¾ に 混合する他 に、以下の手段によっても可能である。  Further, the magnetic flux can be destroyed by the following means in addition to mixing with the magnetic ISi like ± 1 itself.
例えば、 と翻^!の間に、 lt^¾ ^^と同禾號カ^い低い物質 力、らなる破駒肯隨を設け、 その破 肯隨の破壊により磁^! ¾1層を破壌する ことも可能である。 この破駒肯 を形 る物質は、 例えば村'、鉛、 m ,
Figure imgf000007_0001
For example, between lt ^ ¾ ^^ and lt ^ ¾ ^^, the same material power, 破, 破, 破, 設 け, ¾ 層 層 ¾ 層 ¾ It is also possible to do so. Substances that form this rupture are, for example, villages, lead, m,
Figure imgf000007_0001
肯 I®を設けた磁気 は、上記と同様の,破 ¾ ^段を有する磁 リ一ダライ 夕と合わせて翻することにより、 の都麵翅 力 壊される。 ±Μ Μ 齢属で破翻 I を形 る には、 M^m, 印刷、 コーティング等によ り行う。薄く!^に易齢属層を形 きる点では真空蒸着によるのか望ましい。 The magnetism provided with the positive I® is destroyed by reversing the magnetism with the same magnetic leader as above, which has a fractured step. To form rupture I in ± Μ 齢 genus, use M ^ m, printing, coating, etc. It is preferable to use vacuum deposition in order to form an easily genus layer thinly.
Mm, 易!! ^属層は^ "の厚さに形 き ま'よく、 ±1己技術 の賺でこれ を形成してもよい。  Mm, easy !! ^ The genus layer may be formed to the thickness of ^ ", and may be formed with ± 1 own technology.
尚、 破 ¾ ^肯瞻をポリエチレン樹脂、 ポリプロピレン樹脂、 ポリ塩化ビニル榭 脂、塩化ビニノ,ビニル共重合 ポリエステル樹脂、 ポリウレ夕ン樹脂等の 熱可塑性樹脂の内のの 1 ¾Xは 2¾^0：の樹脂により形成しても同様の効果を得 られる。樹脂により破駒肯隨を形 る は、 E口刷、 又はコーティングによ ^破^!肯 ¾1を开 さる。  In addition, 1¾X of thermoplastic resin such as polyethylene resin, polypropylene resin, polyvinyl chloride resin, vinylino chloride, vinyl copolymerized polyester resin, and polyurethane resin is 2¾ ^ 0: The same effect can be obtained by forming with resin. To form a broken piece with resin, use E printing or coating.
更に、破^ ^肯嗨の破壊は、 1己のような麵破驗法に限られない。例えば、 ¾ ¾を利用して破辆 ήέΐを破壊することも可能だし、 パンチで穴を開ける、研 磨する等の機 法により破 を破壊することも可食 έである。 Furthermore, the destruction of the breach is not limited to the test method of oneself. For example, It is possible to destroy the rupture using the ¾ し, and it is edible to destroy the rupture by punching holes, grinding or other methods.
このような破粉法を採る は、翻^!の破齢可能とするために觀 言 に 1己のような工夫をする必要はなく、 ¾ ^リーダライ夕にどのような破 鮮段を設ける力、と I、う Ρ になる。  To adopt such a powdering method, it is not necessary to devise something like oneself to observe in order to make it possible for the transitivity to be broken. , And I, う.
尚、 翻 の破壊は、必ずしも醜カードの iifflの都度行う 要はなく、 言 された信号を一定の回纖み取るたびに行ったり、 また、 その磁^! ^を 綱しなくなった に行ってもよい。つまり、破^!食 の破壊をいつ行うか は、 廳^の fflの形態に合わせて自由に ¾ できる。  In addition, it is not necessary to perform the destruction every time the iiffl of the ugly card is used, but it is performed every time the said signal is taken a certain number of times, or when the magnet is no longer used. Is also good. In other words, you can freely decide when to break the food!
尚、 に更に重ねて保翻を設けてもよい。 この保編はパーマロイ、 センダスト等の低 の磁性体を として形 るのか ましい。低腿 力の磁性体を用いて形成した保 ¾ は磁気シールドとしてはたらき、 高' tt^の磁 気リ一ダライタでなけ (通 に § された信号を騰できなくなり、 よ つ ¾ ΙΒΙ ^の偽造防止に効¾ ^ある。 In addition, you may provide a transliteration further on. It is better to use a low magnetic material such as Permalloy or Sendust as the material. The protection formed by using a low-tension magnetic material acts as a magnetic shield, and must be a magnetic reader / writer with a high tt ^ (signals that cannot be raised can be raised, and forgery of the ΙΒΙ ^ is not possible). Effective for prevention.
i:のように、 本発明の翻^ ま、磁^!編に言 された 号 を固定ィ匕し、且つその磁 の破壊を可能としたものである。従って、本発 明の磁^ によ ま'、磁^! 号の消去、再書込みか^ j能となるため、 麵済み纖カードのみでなく 中、 さらに 前の職カードの偽造、不正 麵を防止できることとなる。更に、麵¾¾«カ ¾^能であるため、 磁^！己 鎖言号の書き換えができないことにより姓する ±1¾5§を防止できることとな る。  As in the case of i :, in the translation of the present invention, it is possible to fix the number referred to in the magnetic section and to destroy the magnetic field. Therefore, according to the magnetic field of the present invention, the magnetic field can be erased, rewritten, or rewritten. It can be prevented. In addition, because it is 麵 ¾¾ «capable, it is magnetic! The inability to rewrite the self-sign symbol can prevent the last name ± 1¾5§.
更に、 本発明の磁難^：によ (ま'、麵 の破 前後を問わず、換言 すれば、磁気カード力棚中であろうと麵済みであろうと、職カードの^ t、 不正 ί ^を防止できる。  Further, the magnetic difficulties of the present invention are not limited to before and after 難, in other words, regardless of whether the magnetic card is in the power shelf or not, the job card's ^ t, illegal ί ^ Can be prevented.
図面の簡単な説明 BRIEF DESCRIPTION OF THE FIGURES
第 1図は、 本発明の第 1 例の磁^！纖の断面を^^に表した図である。 第 2図は、 本発明の第 2難例の麵碰の断面を^^に表した図である。 第 3図は、 本発明の第 3 ^例の磁^ I の断面を^^に表した図である。 第 4図は、 本発明の第 1 ¾½例の磁翅^ ίτ^あって、 mm m^ ^ . 壊した後の断面を ^5WJに表した図である。 FIG. 1 shows a first embodiment of the present invention. It is the figure which expressed the cross section of the fiber in ^^. FIG. 2 is a diagram showing a cross section of 麵 碰 in the second difficult example of the present invention as ^^. FIG. 3 is a diagram showing a cross section of the magnet I of the third embodiment of the present invention as ^^. FIG. 4 is a diagram illustrating a first example of the magnetic wings of the present invention. It is a diagram showing the cross section after breaking as ^ 5WJ.
第 5図は、本発明による方法で ¾ 信号を «ί ^ΜΙΞ^からの出力;^ を示す図である。  FIG. 5 is a diagram showing the output of signal from ί ί ί ΜΙΞ in the method according to the present invention;
第 6図は、 本発明による方法 ¾信号を書 に、 対応 型リードラィ夕による磁気信号消 ¾Ί ^を施した後の„ からの出力灘 である。  FIG. 6 is an output chart from the signal after the method (signal) according to the present invention has been written and the magnetic signal has been canceled by the corresponding read / write method.
第 7図は、 の方法 信号を書 ^だ¾ 2»の平面図を^ Wに表 した図である。  FIG. 7 is a diagram showing a plan view of a signal {right arrow over (W)} in FIG.
発明を するための^の形態 ^ Form for making invention
く第 1諭例〉 First example>
第 1図に従って、 本発明の磁 舰の第 1鶴例を説明する。尚、 各雄例 で共通する部分には同一の^を付し、 動!^明は省略する。  With reference to FIG. 1, a first crane example of the magnet of the present invention will be described. Note that the same parts are denoted by the same ^ in each male example, and the description of the movement is omitted.
1は ¾1れ、ある。 謝は、 白色のポリエステルフィルムであって、 その厚さは 188 である。  One is one. Xie is a white polyester film with a thickness of 188.
3は磁 en層である。 m m^以下に示 誠の磁 ½^枓を塗布して、 厚さ 7〃 mに形成した。  3 is a magnetic en layer. The thickness of 7½m was formed by applying the magnetic material shown below under mm m.
mm m ) r一 Fe2o3粉 ιοο龍部 mm m) r 1 Fe 2 o 3 powder ιοο Ryube
(^¾¾300 , 平職径 0.5 ） 赚ビニル樹脂 30龍部  (^ ¾¾300, flat work diameter 0.5)
(^旅：バイロン）  (^ Journey: Byron)
イソシァネート樹脂 3 4部  Isocyanate resin 3 4 parts
(日本ポリウレタン製：コロネート L) MEK 60龍部  (Made by Nippon Polyurethane: Coronate L) MEK 60 Ryube
MI BK 60龍部 トルエン 60龍部 尚、 麵翻 3に含める樹脂とし TS^ビニル樹脂が含まれて 、る。  MI BK 60 dragon part Toluene 60 dragon part In addition, TS ^ vinyl resin is included as a resin to be included in the translation 3.
そして、 磁鶴^ S3か機しないうちに一定の周^ ¾度の磁気信号の書込 みを行い、 0. 8秒後に磁 2^ 3を鶴させる工程を行った。  Then, a magnetic signal was written at a constant frequency before the magnetic crane S3 was used, and a process of crimping the magnetic flux was performed 0.8 seconds later.
尚、 図 1中の 5力 ¾ [生粒子であり、疎密パターンを形成している。 く第 2難例〉 It should be noted that the five forces in FIG. 1 are [raw particles and form a dense / dense pattern. Second difficult example)
第 2図に従って、本発明の麵 5^：の第 2¾¾例を説明する。  A second example of {5 ^:} of the present invention will be described with reference to FIG.
1は鋭れ'ある。謝は、 白色のポリエステルフィルムであって、 その厚さは 188〃である。  One is sharp. Xie is a white polyester film, 188 cm thick.
2は破糊曬である。 この破翻 6 2は を真 ¾H着させ 成した。 また、 破 2の厚さは 3〃 mとした。  2 is a broken glue. This bankruptcy 62 was formed by wearing a true-H. The thickness of fracture 2 was 3〃m.
3は ¾¾®である。 m s^破 ^肯瞻 2を形成した後に以下に 示す糸減の磁髓料を飾して、 厚さ 7 mに形成した。  3 is ¾¾®. After the formation of m s ^ ^ 肯 瞻 瞻 2 後 に 後 に 形成 後 に 後 に 後 に 後 に 後 に 後 に 後 に 後 に 後 に 後 に 後 に 後 に.
mmmmom r-Fe2o3粉 10 o m mmmmom r-Fe 2 o 3 Powder 10 om
(ί¾¾¾3 Ο Θβ , 平均醒 0.5/m) ポリエステノ lgfl旨 30重置部  (ί¾¾¾3 Ο Θβ, mean arousal 0.5 / m) Polyesteno lgfl
凍 バイロン）  Frozen byron)
イソシァネート植 ffl旨 3fiSgp  Isocyanate plant ffl effect 3fiSgp
(日本ポリウレタン製：コロネート L) (Nippon Polyurethane: Coronate L)
MEK 6 omit部 MEK 6 omit section
MI BK 60龍部 トルエン 60龍部 そして、 磁翅 ¾1層 3か聰しないうちに一定の周 度の磁 信号の書込 みを行い、 1. 0秒後に麵 E^S3を観させる: 呈を行った。  MI BK 60 Dragon part Toluene 60 Dragon part And magnetic wing ¾ Write a magnetic signal of a certain frequency before layer 3 or 3 and watch 1. E ^ S3 1.0 seconds later: Present went.
く第 3雄例 >  The third male example>
第 3図に従って、本発明の磁翅^の第 3魏例を説明する。  Referring to FIG. 3, a third example of the magnetic wing of the present invention will be described.
第 3¾Sfe例の磁 纖は、第 1¾½例の ^の磁歸^ 3に更に重 ねて厚さ 3〃mの保護層 4を設けたものである。 The magnetic fiber of the third example of Sfe has a protective layer 4 having a thickness of 3 μm, which is further superposed on the magnetic layer 3 of ^ of the first example.
\ 3でも 例 1と同様に磁^!^ S 3カ^^する前に一定の周« ^度 の親信号を書 i だ。  In the case of \ 3, as in Example 1, a parent signal having a constant frequency is written i before performing the magnetic ^! ^ S3 operation.
尚、保誦 4は、 磁気信号書込 、磁體料 mmm 3 )が十分に鶴 してから以下に示す糸城の塗料を »して形成した。 Incidentally, the recitation 4 was formed by applying the following paint of Itoshiro after the magnetic signal writing and the magnetic material mmm 3) were sufficiently crane.
rn m センダスト粉 ι o o重量部  rn m sendust powder ι o o weight part
マテリアル^) 塩化ビニル '瞧ビニル Material ^) Vinyl chloride 瞧 vinyl
共重合体 3 0龍部  Copolymer 30 Ryube
(セキスイイ ：ヱスレック A) ポリエチレンワックス 5 S*部  (Sekisui: Pesrec A) Polyethylene wax 5 S *
(≡ -i\^ m ： 1 5 1 p)  (≡ -i \ ^ m: 1 5 1 p)
イソシァネート樹脂  Isocyanate resin
(日本ポリウレタン製：コロネート L) ME K 3 0 0龍部 トルエン 3 0 0 ffi*部 ぐ実験例 >  (Made by Nippon Polyurethane: Coronate L) ME K 300 Ryube Toluene 300 ffi *
実験 1 ：嫌例 1の言 騰にサーマルへッドを删した。次に、 m m 3カ 壊された力 忍するためにその磁^ ι から磁気信号を出力してみたが、 出力は全く得られなかった。  Experiment 1: A thermal head was applied to the wording of Dislike 1. Next, I tried to output a magnetic signal from the magnetic field to endure the power that was destroyed by mm 3, but no output was obtained.
これにより、 磁翅翻 3は破壊されたことカ汾かった。 尚、 この の醜 i m 3の破壊とは、 m^^mmして磁 立子か移動可能となり、磁 性粒子の疎密ノヾタ―ンが崩 そ (««^ΙΞΙΙΙ中の磁性粒子の密度が i¾ ""に なることである。 この磁性粒 密度カ^ こなつた磁歸^iSを ί^ Μ^ΙΞϋ 体の 図を図 4で示している。  As a result, the wings were destroyed. Incidentally, the destruction of this ugly im 3 means that the magnetic particles become movable by m ^^ mm, and the dense and dense pattern of magnetic particles collapses (the density of magnetic particles in «« ^ ΙΞΙΙΙ is i がFig. 4 shows a diagram of the 磁 ^ カ ^ ΙΞϋ body that has this magnetic particle density.
実験 2 ：雄例 2の磁^! ¾i ^に言 5ϋされた磁 言号を出力した。 その出 力腿は図 5で示すようになつた。  Experiment 2: The magnetism of the example 2 was output to the magnetism ^! ¾i ^. The output thighs became as shown in Fig. 5.
次に、 この磁 eii ^に書込まれた磁 Βϋί言号を消去すべく、 この麵 体に 力 2 7 5 O 0 eの高抗 対応型のリードライタを適用した。  Next, a high resistance type lead writer with a force of 275 Oe was applied to the body in order to erase the magnetic sign written on the magnet eii ^.
その後、 その磁^！^本に §¾iされた磁^! ^言号を出力したところ、 リード ライ夕を i fflする前と同一の出力力^られた。 この出力 ¾ ^を図 6に示してある。 これにより、 本発明の方法で 信号を書込めば、 磁気信号は消去されないこ とが分かった。  Then, the magnetism ^! ^ When I output the §¾i magnetized sign in this book, I got the same output power as before the i-fl fl. This output ¾ ^ is shown in FIG. Thus, it was found that the magnetic signal was not erased if the signal was written by the method of the present invention.
<碰例 > <碰 Example>
m 1 ：魏の破!^ M 2を持たない磁 珊に磁気信号を書込み、 サ —マルへッドを翻した。 そしてその磁^ | から磁気信号を出力した。 書 だ信号と同一の信^《出力され翻^!に損傷が無いことカ汾かつ 2 ： m ιの磁短纖に、觸綱を させてから 信号の 書込みを行う の方法を用い 信号を書込み、 その後、 この磁^!^^に 書込まれた磁気信号を消去すべく、麟カ 2 7 5 O 0 e の高抗動対応型のリ— ドライタを したところ、何ら出力は得られず、磁翅 ¾¾s力 壊されている ことが分かった。 m 1: Wei's destruction! ^ A magnetic signal was written to a magnetic core without M2, and Samaru Head was turned over. Then, a magnetic signal was output from the magnetic field. book The same signal as that of the signal is output and the signal is not damaged. The signal is written using the method of writing a signal after making the magnetic fiber of Kafen and 2: After that, when the magnetic signal written in this magnet ^! ^^ was erased by using a high response type lead writer of 275 O 0 e, no output was obtained. The wing ¾¾s power was found to have been destroyed.
従って、 本発明の麵^:によ ίま'、破 肯 2の破壊により麵翻 Therefore, according to the present invention, に よ ^:
3の破嫩河能となり、 また、翻 ¾¾® 3に された磁婦 ¾if言 個定化 されるた。 これにより、 本発明の, Bl¾本は、磁気信号の再書込みを^!能と する。 そして、磁気カードの びそれに伴う不正使用を防止すること力河能 となる。 As a result, the Ninja River No. 3 has been identified, and the magnum た if word has been standardized. As a result, the present invention makes it possible to rewrite a magnetic signal with a ^! Capability. In addition, the prevention of unauthorized use of the magnetic card and the accompanying improper use will be a key feature.

Claims

請 求 の 範 囲 The scope of the claims
1. 謝と磁^! ¾ISとからなる麵 において、 鶴 ¾i に ^が含 ま 且つ翻 ¾1 への職信号の みを以下の工程により行った磁 破^ J肯 6®に重ね τ¾體料を ^し を形 る第 1  1. Xie and Magnet ^! In the ¾IS ”, the crane ¾i contains ^ and only the job signal to translator 1 was applied by the following process. ^ The first shaping
翻 Ξ^®が未 ¾^態のうちに観信号の書込みを行う第 2工程 直ちに s^sを imさせ ¾ 信号を固定化する第 3 呈  The second step of writing the observation signal while the translation is not yet performed ^ Immediately imitate s ^ s ¾ The third presentation of fixing the signal
2.
Figure imgf000013_0001
ポリエチレン樹脂、 ポリプロピレン樹脂、 ポリ塩化ビニル榭 脂、 塩化ビニル '隱ビニル共重^ ポリエステル樹脂、 ポリウレタン樹脂等 の熱可塑 f生樹脂の内の 1種又は 2種¾±を混合したものである請求の範囲第 1項 に言 emの麵¾¾*0 2.
Figure imgf000013_0001
A mixture of one or two of thermoplastic resins such as polyethylene resin, polypropylene resin, polyvinyl chloride resin, vinyl chloride, polyester resin, polyurethane resin, etc.麵 ¾¾ * 0 of the word em in the first term of the range
3.
Figure imgf000013_0002
3.
Figure imgf000013_0002
4. 謝と磁缩 ensからなる麵纖において、謝と磁歸 Βϋ の間に破 m rn^ 且つ磁 ^ への騰信号の書込みを以下の工程により行つ
Figure imgf000013_0003
4. In the fiber consisting of X and magnetic ens, write a break signal between m X and magnetic return by the following process between X and magnetic return.
Figure imgf000013_0003
破 ¾¾ι肯隨に重ね „ し„ を形 る第 1工程  The first step to form a new layer
層カ沬 m^n©うちに磁気信号の書込みを行う第 2工程 直ちに磁^! ¾¾iを乾燥させ磁気信号を固定化する第 3工程  The second step of writing a magnetic signal in the layer m 沬 n © The third step of immediately drying the magnetic signal and fixing the magnetic signal
5.  Five.
6 ·
Figure imgf000013_0004
6 ·
Figure imgf000013_0004
7. 磁 翻に重ねて保翻を設けた請求の欄第 1項〜第 6項のし、ずれかに 言 Β*¾の麵 Ξί¾*ο  7. In the fields of claims 1 to 6 where the translation is set up in parallel with the magnetic translation, the words ず れ * ¾ 麵 Ξί¾ * ο
8. 保護層に低保 の磁性体が含まれる請求の範囲第 7項に iemの磁気  8. Claims include low-maintenance magnetic material in the protective layer.
PCT/JP1996/002033 1996-05-23 1996-07-19 Magnetic recording medium WO1997044783A1 (en)

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Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672085A (en) * 1992-08-25 1994-03-15 Dainippon Printing Co Ltd Information recording medium
JPH06338050A (en) * 1993-05-28 1994-12-06 Tomoegawa Paper Co Ltd Magnetic recording medium and its production
JPH07210859A (en) * 1994-01-06 1995-08-11 Tokyo Jiki Insatsu Kk Magnetic recording medium and its production
JPH07237102A (en) * 1994-02-25 1995-09-12 Nippon Telegr & Teleph Corp <Ntt> Prepaid card magnetic surface destroying device
JPH07244837A (en) * 1994-03-04 1995-09-19 Tokin Corp Magnetic card
JPH08106710A (en) * 1994-09-30 1996-04-23 New Oji Paper Co Ltd Magnetic recording card and method for using the same

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0672085A (en) * 1992-08-25 1994-03-15 Dainippon Printing Co Ltd Information recording medium
JPH06338050A (en) * 1993-05-28 1994-12-06 Tomoegawa Paper Co Ltd Magnetic recording medium and its production
JPH07210859A (en) * 1994-01-06 1995-08-11 Tokyo Jiki Insatsu Kk Magnetic recording medium and its production
JPH07237102A (en) * 1994-02-25 1995-09-12 Nippon Telegr & Teleph Corp <Ntt> Prepaid card magnetic surface destroying device
JPH07244837A (en) * 1994-03-04 1995-09-19 Tokin Corp Magnetic card
JPH08106710A (en) * 1994-09-30 1996-04-23 New Oji Paper Co Ltd Magnetic recording card and method for using the same

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