JPS60194483A - Magnetic recording method - Google Patents

Magnetic recording method

Info

Publication number
JPS60194483A
JPS60194483A JP4959684A JP4959684A JPS60194483A JP S60194483 A JPS60194483 A JP S60194483A JP 4959684 A JP4959684 A JP 4959684A JP 4959684 A JP4959684 A JP 4959684A JP S60194483 A JPS60194483 A JP S60194483A
Authority
JP
Japan
Prior art keywords
magnetic
layer
magnetic field
pattern
thermal
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
Application number
JP4959684A
Other languages
Japanese (ja)
Inventor
Yoshihiko Fujimura
義彦 藤村
Koichi Saito
孝一 斉藤
Yuji Suemitsu
末光 裕治
Mitsuhiko Itami
伊丹 光彦
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Business Innovation Corp
Original Assignee
Fuji Xerox Co Ltd
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 Fuji Xerox Co Ltd filed Critical Fuji Xerox Co Ltd
Priority to JP4959684A priority Critical patent/JPS60194483A/en
Publication of JPS60194483A publication Critical patent/JPS60194483A/en
Pending legal-status Critical Current

Links

Classifications

    • GPHYSICS
    • G03PHOTOGRAPHY; CINEMATOGRAPHY; ANALOGOUS TECHNIQUES USING WAVES OTHER THAN OPTICAL WAVES; ELECTROGRAPHY; HOLOGRAPHY
    • G03GELECTROGRAPHY; ELECTROPHOTOGRAPHY; MAGNETOGRAPHY
    • G03G19/00Processes using magnetic patterns; Apparatus therefor, i.e. magnetography

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)

Abstract

PURPOSE:To form a magnetic latent image easily on the basis of superior thermal residual magnetization by recording a prescribed procedure on a magnetic recording medium on which a magnetic layer forming a modulated magnetic pattern and a magnetic layer to be thermally magnetized are laminated. CONSTITUTION:When the magnetic recording medium 10 obtained by laminating the 1st and 2nd magnetic layers 2, 3 on a base layer 1 is heated by a whole surface heating means 11, an inverted pattern of a periodically modulated magnetic pattern formed on the layer 2 having a high curie point is formed on the layer 2 to be thermally magnetized. When a thermal pattern is impressed to the layer 2 while impressing a magnetic field in one direction by an external magnetic field impressing means 13, a fine non-inverted latent image free from fog or the like at its background part is formed on the layer 2 without requiring high accuracy for the setting of positions of the magnetic field applying means and the heat impressing means. Erasing after development, the formation of the inverted latent image, etc. are also performed similarly.

Description

【発明の詳細な説明】 産業上の利用分野 本発明は、磁気記録方法、詳しく言えは少なくとも基層
と該基層上に周期的に変調された磁化パターンが形成さ
れた第1磁性体増と熱磁化可能な第2磁性体鳩とから成
る磁気記録体を用い、熱残留磁化現象をオリ用して馴磁
気記録体上に像状熱パターンに応じた磁気潜像を形成す
る磁気記録方法に関する。
DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a magnetic recording method, and more particularly, to a magnetic recording method, which includes at least a base layer, a first magnetic material on which a periodically modulated magnetization pattern is formed, and thermal magnetization. The present invention relates to a magnetic recording method for forming a magnetic latent image in accordance with an image-shaped thermal pattern on the magnetic recording medium by using a thermal remanent magnetization phenomenon, using a magnetic recording medium comprising a second magnetic material.

従来技術 熱残留磁化を利用した磁気潜像形成法とは、強磁性体を
、そのキューリ一温度近傍まで温度上昇させて、外部磁
界印加の下で室温まで冷却後、外部磁界を消去すると残
留磁化が現われる現象を利用するものでめって、加熱冷
却のサイクルを利用せずに磁界だけで磁化する方法に較
べて小さな外部磁界で飽和残留磁化に近い残留磁化が得
られる方法である、 この熱残[磁化税象ケ利用して熱ツヤターン全磁気陽像
)fクーンに変俟し、磁気記録方法に利用する場合、画
像情報を含むフラッシュ光やサーマルヘッド、レーザー
光などの熱パターン入力法が第1」用できるので磁気ヘ
ッドによる方法に較べて、より簡単に磁気潜像の形成が
できる。
Conventional technology A magnetic latent image forming method using thermal residual magnetization is a method in which a ferromagnetic material is heated to around its Curie temperature, cooled to room temperature under the application of an external magnetic field, and then the residual magnetization is removed when the external magnetic field is removed. This is a method that takes advantage of the phenomenon in which saturated residual magnetization can be obtained with a small external magnetic field compared to a method that uses only a magnetic field without using a heating/cooling cycle. When used in magnetic recording methods, thermal pattern input methods such as flash light, thermal head, laser light, etc. that contain image information are used. Since the magnetic latent image can be used more easily than the method using a magnetic head, it is possible to form a magnetic latent image more easily.

しかしなから熱へ留磁化現象を利用した磁気記録法にお
いて線、熱と磁界を同時に印加しなければならず、さら
に磁気潜像がi性トナー等によって良好に現象されるに
は熱又は磁界の少なくとも一方に周期的な変藺を加える
事によって磁気潜像自体に変調を加えなくてはならない
。これらの要求を満たすために従来から様々な提案がな
されている。
However, in the magnetic recording method that utilizes the phenomenon of residual magnetization in heat, it is necessary to apply a wire, heat and a magnetic field simultaneously, and in order for the magnetic latent image to be well developed by i-type toner, etc., the heat or magnetic field must be applied simultaneously. It is necessary to modulate the magnetic latent image itself by adding periodic changes to at least one side. Various proposals have been made to meet these demands.

まず第1の方法として、磁気配録体を予め一方向に磁化
し、次に逆方向の磁界全印加しつつ熱パターンを印加す
る方法がある1、この方法では、磁界印加手段と熱パタ
ーン印加手段の位* t# Uはそれほど要求されない
反面、磁気壱■琢の変W4が熱パターンの変14に依存
するので、熱・9メ一ン自体に更に細く変調を加えなく
ては良好な現像を行なうことができない。熱パターン人
力としてサーマルヘッドを用いる場合には、サーマルヘ
ッド発熱素子径に対応する波長の窒間的磁界変調を・行
ない得るが、印加された1つの熱ドツト内に変調ヲ加え
られないためにドツトの重ね打ちができず、ソリッド潜
像がペク黒でなく網点像となってしまう欠点を有してい
る。
The first method is to magnetize the magnetic recording body in one direction in advance, and then apply a heat pattern while applying a full magnetic field in the opposite direction1.In this method, a magnetic field application means and a heat pattern are applied. Although t#U is not so required, on the other hand, since the change W4 of the magnetic 1 * Taku depends on the change 14 of the heat pattern, it is necessary to add finer modulation to the heat 9 main itself for good development. can't do it. When a thermal head is used as a manual thermal pattern, it is possible to perform magnetic field modulation with a wavelength corresponding to the diameter of the heating element of the thermal head, but since no modulation is applied within one applied heat dot, the dot It has the disadvantage that overprinting cannot be performed, and the solid latent image becomes a dot image instead of a black one.

第2の方法として龜、熱パターン印加と同時に長尺の1
11mヘッド等にニジ磁界を印加して潜像を形成する方
法がある。この方法によれは、′a像内の変調は印加磁
界を変調することにより希望する成長に容易に行なわれ
るが、熱パターン印加手段と磁界印加手段とを極めて筒
い精度で位置設定しなくてはならず、装置構成の複雑化
は避けがたいものかめる。
As a second method, a long one is applied at the same time as the heat pattern is applied.
There is a method of forming a latent image by applying a rainbow magnetic field to a 11m head or the like. According to this method, modulation within the 'a image can be easily achieved to achieve the desired growth by modulating the applied magnetic field, but the thermal pattern application means and the magnetic field application means must be positioned with extremely precise precision. However, the complexity of the device configuration is unavoidable.

第3の方法としては、個気ml録体を、基層上に変調さ
れた磁化・′t′ターンが形成された第7磁性体層と磁
化可能な第2磁性坏層とを設けた積層構造とし、上記第
2磁性体増側から熱パターンを印加することによって第
2磁性俸膚に所望する熱残留磁化パターンを形成する方
法がある。この磁気記録方法は、磁化変調全簡易な機栴
で行い得る方法であるが、この方法においては熱残留磁
化を形成する際に要する第−膚の磁化パターンによる磁
界が、特に非加熱領域において第2層上に漏れ出してき
てお9、この結果、現像時に背景部のカプリを生じさせ
、画質を低下させる。
As a third method, an individual ML recording medium is formed into a laminated structure in which a seventh magnetic material layer having modulated magnetization and a 't' turn is formed on a base layer and a second magnetizable magnetic layer. There is a method of forming a desired thermal remanent magnetization pattern on the second magnetic arm by applying a thermal pattern from the second magnetic body side. This magnetic recording method is a method that can perform magnetization modulation with a simple machine, but in this method, the magnetic field due to the first-layer magnetization pattern required to form thermal remanent magnetization, especially in the non-heated region, is It leaks onto the second layer9, resulting in capri in the background during development and deteriorating the image quality.

このように従来の磁気記録方法では、それぞれに大府が
ろり、未だ満足な効果が得られていないのが実情である
As described above, the conventional magnetic recording methods have their own problems, and the reality is that satisfactory effects have not yet been achieved.

発明の目的 本発明の目的は、磁界印加手段と熱印加手段との位置設
定に高い鞘度ヲ必要とせず、かつ背須部のカプリ等の画
質低下を生じさせない磁気記録方法を提供することでお
る。
OBJECTS OF THE INVENTION An object of the present invention is to provide a magnetic recording method that does not require a high degree of sheathing for positioning the magnetic field application means and the heat application means, and does not cause image quality deterioration such as capri on the spine. is.

発明の構成 本発明の第7の特徴は、少なくとも基j−とし基層上に
周期的に変−された磁化ノjターンが形成された餓/磁
洋体層と熱磁化可能な第2磁性俸膚とから成る磁気−C
録坏を用いる磁気配録方法において、第2磁性体J−を
全面に亘って加熱して第1磁性体層の磁化パターンに対
し反転した熱残M[化を第コ磁性体層に形成し、一定方
向の磁界を印加しつつ第コ磁性体!−に像状熱パターン
を印加して@22値性層上にその熱パターンに対応する
磁気潜像を形成し、現像径外部磁界の存在しない条件下
で第、2磁性i4−贋金全面にわたって加熱することに
より上記磁気潜像を消去する工程から成る磁気Fk2録
方法にある。
Structure of the Invention A seventh feature of the present invention is that the present invention includes at least a base layer, a star/magnet layer in which periodically changed magnetization turns are formed on the base layer, and a second magnetic layer that can be thermally magnetized. Magnetic C consisting of skin
In a magnetic recording method using a recording material, the second magnetic material J- is heated over the entire surface to form a heat residue M in the first co-magnetic material layer, which is inverted with respect to the magnetization pattern of the first magnetic material layer. , while applying a magnetic field in a certain direction. - Apply an image-shaped thermal pattern to form a magnetic latent image corresponding to the thermal pattern on the @2 binary layer, and heat the entire surface of the second magnetic i4- counterfeit gold under the condition that no external magnetic field exists. The magnetic Fk2 recording method comprises the step of erasing the magnetic latent image by doing so.

さらに本発明の第2の鴫徴は、上y4r−,磁気記録体
を用いる磁気記録方法において、一定方向の磁界を印カ
ロしつつ第2値性捧)*Iを全面に亘って加熱し、外部
磁界を印加しない条件下で第、2a注体層に像状熱ノ+
ターンを印加してその熱パターンに対して反転した磁気
潜像を形77シ、し、現像径外部磁界の存在しない条件
下で第2磁性体層を全面に亘って加熱することにより上
Htm気宿像ヲ消去することがら成る磁気記録方法にあ
る。
Furthermore, the second feature of the present invention is that in a magnetic recording method using a magnetic recording medium, heating the second value (I) over the entire surface while applying a magnetic field in a constant direction, Image-like thermal energy is generated in the 2a focused layer under the condition that no external magnetic field is applied.
A magnetic latent image is formed by applying a turn to form a magnetic latent image that is inverted with respect to the thermal pattern, and the second magnetic layer is heated over the entire surface in the absence of an external magnetic field. A magnetic recording method that involves erasing an image.

本発明の第/の%徴によれは非反転像が得られ、第2の
箸仰によれは反転像が得られるが、いずれの場合にも、
第7層の磁化パターンにより第2崩上に作られる磁界と
!、2/−内の熱残留磁化によるそれとは向きが反対で
かつ大きさが等しいことが好ましい。また外部磁界は第
1虐の磁化パターンを乱すことなく第2層の加熱穎域に
おいてのみ熱残留磁化を生せしめる程度の大きさを有す
るものが好ましい。すなわち″@/磁性体層番゛よ、熱
に対して磁気的安定性の高いものがJ8はれ、第/磁性
体層は、熱残留磁化しやすいものが選U゛れる。
A non-reversed image can be obtained according to the first and second percentage points of the present invention, and an inverted image can be obtained according to the second chopstick elevation, but in either case,
The magnetic field created on the second collapse by the magnetization pattern of the seventh layer and! , 2/- is preferably opposite in direction and equal in magnitude to that due to thermal remanent magnetization. Further, it is preferable that the external magnetic field has a magnitude that causes thermal remanent magnetization only in the heated region of the second layer without disturbing the magnetization pattern of the first layer. That is, for the magnetic layer number J8, one with high magnetic stability against heat is selected, and for the magnetic layer number J8, one that is easily subject to thermal residual magnetization is selected.

実施例 以下、本発明の実施例について図面紮参j1@シながら
油、明する。
EXAMPLES Hereinafter, examples of the present invention will be explained with reference to the drawings.

第7図(al〜(dlは、本発明による磁気記録方法會
使用できる磁気記録体の構造を示すものである。
FIG. 7 (al to (dl) show the structure of a magnetic recording medium that can be used in the magnetic recording method according to the present invention.

(atの構造では、非磁性基体1」二に予め全面に目り
周期的に変調された磁化パターンで磁化されている第1
磁性体1@ 2が設けられており、その土に磁化可能な
第2磁性体崩3が設けられている。<brは(alの構
造体の@/と第一の磁憔悴駒の間に非磁性の中間膚4を
設けた4tt ”A B己録体の例ケ7ドしている。
(In the structure of AT, the non-magnetic substrate 1'' is pre-perforated over the entire surface and is magnetized with a periodically modulated magnetization pattern.)
A magnetic material 1@2 is provided, and a second magnetic material material 3 that can be magnetized is provided on the soil. <br is an example of an A B self-recorded body in which a non-magnetic intermediate layer 4 is provided between the @/ of the al structure and the first magnetic piece.

(C)は(a)の構造の磁気配球体に表血保讃膚5會設
けた例を示し、(d)は(btの構造の磁気記録体に表
面保圓層5を設けた例を示している。
(C) shows an example in which a magnetic sphere with the structure of (a) is provided with 5 surface blood protection layers, and (d) shows an example in which a magnetic recording body with the structure of (bt) is provided with a surface protection layer 5. It shows.

本発明は上配栴造のいずれのものにも使用できるが、1
wI略化のために以下第1図aの栴這を有する磁気記録
体を例にとって貌明する。第2図(atは全曲加熱を施
こす以前の磁気記録体における磁気的状態を示しており
、第/磁性体層2には図中6で示すように周期的に磁化
の方向が変化した磁化ツヤターンすなわち空間的に磁気
変調された磁化パターンが全■に亘って設けられている
。この段階では、第1磁性俸層2内の磁化6から発生す
る磁束7が第2磁性体/I113内部及び磁気記録体表
面上に分布している。ここで、この磁束7による第2磁
性体層3への作用磁界Ha は通常環境温度■。
The present invention can be used for any of the above products, but 1
For the sake of brevity, the description will be given below by taking the magnetic recording body having the groove shown in FIG. 1(a) as an example. Fig. 2 (at indicates the magnetic state of the magnetic recording body before full heating is applied, and the magnetic layer 2 has magnetization whose direction of magnetization changes periodically as shown by 6 in the figure. A glossy turn, that is, a spatially magnetically modulated magnetization pattern is provided over the entire area.At this stage, the magnetic flux 7 generated from the magnetization 6 in the first magnetic layer 2 is inside the second magnetic body/I 113 and The magnetic field Ha exerted on the second magnetic layer 3 by this magnetic flux 7 is normally at the ambient temperature (2).

における第2f&i性体層の抗磁界H2゜(To)より
も小さくなるよう定められている。従って鵠コ図aの状
態では第2磁性体j*は残留磁化を有しておらず〜磁気
配録体上には磁化ツリー76が発生する磁石7が存在す
るのみである。
It is determined to be smaller than the coercive field H2° (To) of the second f&i material layer at . Therefore, in the state of the cathode diagram a, the second magnetic body j* has no residual magnetization, and only the magnet 7 in which the magnetization tree 76 is generated exists on the magnetic recording body.

第2図(blは、全[用加熱を施こした後の磁気配球体
の磁気的状態を示すものである。この全面加熱の具体的
手段としては、フラッシュランプ、熱ロール又はサーマ
ルヘッド等が用いられる。この時、第2磁性体層3を、
その抗磁界H2oが第3図(alに特徴的に例示するよ
うに温度とともに変化する材料で構成することにより、
m;i磁性体〕@3は第/の磁性体層2の磁化パターン
6とは逆の熱残雷値化ノ母ターン8全有することになる
Figure 2 (bl) shows the magnetic state of the magnetic sphere after full-surface heating. Specific means for this full-surface heating include a flash lamp, heat roll, or thermal head. At this time, the second magnetic layer 3 is
By constructing the material with a material whose coercive magnetic field H2o changes with temperature as characteristically illustrated in Figure 3 (al),
m; i magnetic material]@3 has all the mother turns 8 of the thermal residual value that is opposite to the magnetization pattern 6 of the /th magnetic material layer 2.

第3図(alは強磁性体の熱磁気効果の/っである抗磁
界H0の温度依存性を例示する図でめシ、図中Tc は
一般にキューリ一温度と呼ばれている。
FIG. 3 (Al is a diagram illustrating the temperature dependence of the coercive field H0, which is the thermomagnetic effect of a ferromagnetic material. In the figure, Tc is generally called the Curie temperature.

このような強磁性体の抗磁界H6の温朋依存行・のため
に、第3図(b)によって示されるような熱残留磁化現
象を生ずる。すなわち、熱残留磁化現象とは外部磁界H
の印加下で、温度Tb tで加熱されてから室温(=T
9ニア8)まで冷却される時Mr(Tb) の熱残留磁
化′に有する現象である。
Due to the dependence of the coercive field H6 of the ferromagnetic material, a thermal remanent magnetization phenomenon as shown in FIG. 3(b) occurs. In other words, the thermal remanent magnetization phenomenon is an external magnetic field H.
is heated at a temperature Tb t and then heated to room temperature (=T
This is a phenomenon that occurs in the thermal remanent magnetization of Mr(Tb) when it is cooled to 9nea8).

第2図(b)に戻ると、熱残留磁化現象を生じる強磁性
体は第2値性体l−3に、外部磁界Hは作用磁界Ha 
に、加熱温度Tb は全肉加熱温度に、熱残梢磁化Mr
 (Tb ) は磁化ノ母ターフ8にそれぞれ相当する
。第/磁性体層の全曲加熱時の温度をTb とし、第1
磁性体のキューり点温度’t T′c とすると、T′
b<T′Gであるような材料で第1i性体層1に構成す
ることにより、全面加熱後の第/i性体増の磁化パター
ンは乱れを生ぜず、第2図(a)に示した状態のまま維
持される。したがって第2図(b)における磁気記録体
上の磁界は、磁化パターン6から発生する磁束と磁化ノ
リ−ン8から発生する磁束とが形成する磁界の和であシ
、これらの磁束が逆向きであるため、第/磁性俸2及び
第2磁性体3の磁化の強さ、及び層厚等を過当に選択す
ることによりはは0とすることができる。第2図(bl
で社、このようにして磁気記録体全見掛は上全く磁化さ
れていないと同等な状りとしており、磁性トナーを吸引
付層せしめる磁気力は全く働らかない。
Returning to FIG. 2(b), the ferromagnetic material that causes the thermal remanent magnetization phenomenon is the second-value material l-3, and the external magnetic field H is the acting magnetic field Ha.
The heating temperature Tb is the whole meat heating temperature, and the thermal residual magnetization Mr
(Tb) corresponds to the magnetization mother turf 8, respectively. The temperature at the time of full heating of the first magnetic layer is Tb, and the first
If the cue point temperature of the magnetic material is 't T'c, then T'
By composing the first i-th element layer 1 with a material such that b<T'G, the magnetization pattern of the /i-th element increases after the entire surface is heated, as shown in Fig. 2(a). It will be maintained in the same state as before. Therefore, the magnetic field on the magnetic recording medium in FIG. 2(b) is the sum of the magnetic fields formed by the magnetic flux generated from the magnetization pattern 6 and the magnetic flux generated from the magnetization pattern 8, and these magnetic fluxes are in opposite directions. Therefore, it can be reduced to 0 by excessively selecting the magnetization strength, layer thickness, etc. of the first magnetic layer 2 and the second magnetic body 3. Figure 2 (bl
In this way, the overall appearance of the magnetic recording medium is as if it were not magnetized at all, and no magnetic force acts to attract and layer magnetic toner.

次に第2図(C1に示すように、一方向の外部磁界Hを
印加しなから第、2磁性体層側から熱〕母ターン金印加
して非加熱領域A1加熱饋域Bからなる温度ノリ−ン會
形成する。この時の非加熱領域A。
Next, as shown in FIG. 2 (as shown in C1, heat is applied from the second magnetic layer side without applying an external magnetic field H in one direction). A non-heating area A is formed at this time.

加熱領域Bの温度並びに外部磁界Hは、それぞれ第3図
aのTa%T、並びにHと1mJ 笠な関係となるよう
にするのが好ましい。この外部磁界Hに、第2磁性体J
fI3の加熱領域Bのみを熱残留磁化させ、他の慣域B
及び第tm性体層1には側ら磁気的影qkヲ与えないも
のが好ましい。すなわち外部磁界Hは、前記作用磁界H
4、第7@性体11# 2の加熱領域日における抗磁界
H1゜(TQ)、第2磁性体層3の非加熱領域Aの抗磁
界H28(T、)に対して次の関係にあるものがよい。
It is preferable that the temperature of the heating region B and the external magnetic field H have a relationship of 1 mJ with Ta%T and H shown in FIG. 3a, respectively. In this external magnetic field H, the second magnetic body J
Only the heating region B of fI3 is thermally remanent magnetized, and the other inertia region B
Also, it is preferable that the tm-th magnetic material layer 1 should not be subjected to magnetic influence from the side. That is, the external magnetic field H is equal to the working magnetic field H.
4. The coercive magnetic field H1° (TQ) in the heated area of the 7th @ magnetic body 11#2 has the following relationship with the coercive magnetic field H28 (T, ) in the non-heated area A of the second magnetic layer 3. Things are good.

1川≧、21Hal、IHI<<IH,、(TQ月、I
H26(Ta)l>lH1+1Ha1このようにするこ
とによシ、第2図1のような磁気的状態が得られる。第
2図(clでは、第/磁性体2は第2図(alと同様な
蛛シ返し磁化〕母ターンを維持している。第2磁性体増
3の非加熱領域Aは第Ω図(i)lと同じように第/磁
性俸層に対し反転した磁化パターンを肩するが、加熱顯
域Bは熱残留磁化現象により外部磁界Hと同一方向に一
様磁化される。
1 River≧, 21Hal, IHI<<IH,, (TQ month, I
H26(Ta)l>lH1+1Ha1 By doing this, a magnetic state as shown in FIG. 2 is obtained. In Fig. 2 (cl), the magnetic body 2 maintains the mother turn in Fig. 2 (repetitive magnetization similar to al). i) As in 1, the magnetization pattern is reversed with respect to the third magnetic layer, but the heated area B is uniformly magnetized in the same direction as the external magnetic field H due to the thermal residual magnetization phenomenon.

第2m性体層の加熱領域Bのように一方向に一様磁化さ
れた磁性体層は、外部にほとんど磁束を発生せず全く値
化されていない場合とはは同等である。従って、第2図
(C)の磁気的状態は、加熱領域Bにおいて第2図(a
lと同等、非加熱領域Aにおいて第2図(blと同号と
なり、磁気配録体上の磁界は、非加熱領域Aにおいてほ
ぼθ、加熱領域Bにおいて磁化パターン6による磁界を
有することになる。ゆえに像状の印加熱A?ターンに対
応し、かつ第1磁性体崩2の磁化パターン6に対応した
変IAI vf−受けた磁気m像が形成される。
A magnetic layer that is uniformly magnetized in one direction, such as the heating region B of the second m-th magnetic layer, is equivalent to a case where almost no magnetic flux is generated externally and no value is expressed at all. Therefore, the magnetic state of FIG. 2(C) is the same as that of FIG.
2 (same number as bl) in the non-heating area A, the magnetic field on the magnetic recording body is approximately θ in the non-heating area A, and the magnetic field due to the magnetization pattern 6 in the heating area B. Therefore, a magnetic m image corresponding to the image-shaped applied heating A? turn and corresponding to the magnetization pattern 6 of the first magnetic material collapse 2 is formed.

ここで用いる外部磁界Hに、印加熱〕J?ターンが冷却
して消滅するまでの間に存在していれはよく、また外部
磁界印加手段としては、永久磁石、電磁石等を用いるこ
とができるので設定の際の位置精度等は非常に緩和され
る〇 また、この様にして形成された潜像の消去は、外部磁界
の無い状態で全面加熱を行い、第2図(blの磁気的状
態とすることで達成される。したがって磁気#像形越、
及び消去は第2図−)及び(C)の一連の工程によって
簡単に行なうことができる。
Apply heating to the external magnetic field H used here] J? It may exist until the turn cools and disappears, and since a permanent magnet, electromagnet, etc. can be used as the external magnetic field applying means, positional accuracy etc. during setting can be greatly relaxed. 〇 Also, the erasure of the latent image formed in this way is achieved by heating the entire surface in the absence of an external magnetic field and bringing it into the magnetic state shown in Fig. 2 (bl). ,
The erasing can be easily carried out by the series of steps shown in FIGS. 2-) and (C).

次に本発明に用いる磁気記録体について詳しく説明する
。前述の説明かられかるように、第1磁性体層2は、磁
気記録体上に達する十分な強さの磁界を形成しかつ加熱
及び劉部磁界印加によっても自身の研化状腕が便化しな
い特性を有することが必要とされる。従って第/磁性体
層2としては、熱に対して磁気的安定性が高く、すなわ
ちキューリー漬温度T1゜が2006以上有り、かつ残
留磁化Sr 及び抗磁力H6の尚い材質、例えはGo−
Ni−P合金磁性#膜や妖等の微粒子を篩分子樹脂中に
分散したいわゆるメタルチーf等が適している。
Next, the magnetic recording medium used in the present invention will be explained in detail. As can be seen from the above description, the first magnetic layer 2 forms a magnetic field of sufficient strength to reach the magnetic recording medium, and its own abrasive arms are also softened by heating and application of a magnetic field. It is required to have characteristics that do not Therefore, the third magnetic layer 2 should be made of a material that has high magnetic stability against heat, that is, has a Curie dipping temperature T1° of 2006° or more, and has good residual magnetization Sr and coercive force H6, such as Go-
A Ni--P alloy magnetic # film, a so-called Metal Chi-f, etc., in which fine particles such as Ni-P are dispersed in a sieve molecular resin, are suitable.

一方策2磁性体JtlJ 3は、先に述べた熱残留磁化
現象をゼする磁性体が用いられる。さらにこの熱′残留
磁化現象が比較的低い温度で生じる材質が望ましく、キ
ューリ一点温度T。2が/3θC程の分散塗布型CrO
2磁性体層やTb−Fe 、 Gb −Fe等の希土類
金属・遷移金楓の非晶質合金薄膜か適している。また第
コ磁性俸膚厚に、第コ磁性体層3の熱残留磁化が自身の
層上に形成する磁界と第/磁性体層2が第2磁性体層厚
だけ離れた位置に形成する磁界が同程度の大きさになる
ように足めることか望ましい。
On the other hand, as the second magnetic material JtlJ3, a magnetic material that exhibits the above-mentioned thermal residual magnetization phenomenon is used. Furthermore, it is desirable to use a material in which this thermal residual magnetization phenomenon occurs at a relatively low temperature, which is the Curie point temperature T. Dispersion coating type CrO where 2 is about /3θC
Suitable are a two-magnetic material layer or an amorphous alloy thin film of a rare earth metal such as Tb-Fe or Gb-Fe or a transition gold maple. In addition, the magnetic field formed by the thermal remanent magnetization of the third magnetic layer 3 on its own layer and the magnetic field formed by the third magnetic layer 2 at a position separated by the second magnetic layer thickness are separated by the thickness of the second magnetic layer. It is desirable to be able to add so that they are of the same size.

第1図(blに示すような非磁性中間層4を第/磁性体
N2と第2磁性体ノー3との間にMする磁気配録体も用
いることができる。この場合、非磁性中間層4は、第1
磁性体層2の磁気的状態を安定な状態に保つだめの断熱
鳩としての+fi能を持つ。この非磁性中間層4は、特
に第1及び第2の磁性体層ノキューリ一点温度TQ1、
■Q2が近い時に有効である。第1図(C)に示すよう
な表面保峡層5を有する磁気記録体に対しても本発明を
適用できる。
It is also possible to use a magnetic recording body in which a non-magnetic intermediate layer 4 as shown in FIG. 4 is the first
It has +fi ability as a heat insulating pigeon to keep the magnetic state of the magnetic layer 2 stable. This non-magnetic intermediate layer 4 has a temperature TQ1 at a single point of the first and second magnetic layers.
■It is effective when Q2 is near. The present invention can also be applied to a magnetic recording medium having a surface barrier layer 5 as shown in FIG. 1(C).

この場合、表面保腹層5は、第2個性捧3の機械的強度
が低い場合に効果がある。いずれにしても、中間層、表
面保峡ノーは厚すさ゛ると磁気記録体上の磁気−a像の
磁界が5i51I″!、るため、博い方が好ましい。
In this case, the surface retaining layer 5 is effective when the mechanical strength of the second fiber 3 is low. In any case, it is preferable that the intermediate layer and the surface tunnel be wide because as the thickness increases, the magnetic field of the magnetic-a image on the magnetic recording medium increases.

第4図は、本発明による峨気日己鯨方法を用いることの
できる磁気記録装置錠の幀、略図である。図にお・いて
lOは磁気配録体てめって基体1上に第l磁性体増2と
して6μm犀のメタルテープ、中間層4としてSμm厚
のポリイミド層、第2磁性体層3としてSμm厚のCr
O□ 分散塗布層をこのj1序で設けたものである。第
1磁性体層2は波長60μmの正弦波で一様に残曽飽和
磁化に達するまで磁化されている。磁気記録体10は時
組方回に回転駆動されており、そのまわりには、全面カ
ロ熱手段11、熱パターン印加手段12、外部磁界印加
手段13、現像器14、転写ロール15及び清掃手段1
7が配置されている。
FIG. 4 is a schematic diagram of a magnetic recording device lock in which the method according to the present invention can be used. In the figure, lO is a magnetic recording body made of a 6 μm metal tape as the first magnetic layer 2 on the substrate 1, a S μm thick polyimide layer as the intermediate layer 4, and a S μm thick polyimide layer as the second magnetic layer 3. Thick Cr
O□ The dispersion coating layer is provided in this j1 order. The first magnetic layer 2 is uniformly magnetized with a sine wave having a wavelength of 60 μm until it reaches residual saturation magnetization. The magnetic recording body 10 is driven to rotate in a clockwise direction, and around it are a whole surface heating means 11, a heat pattern applying means 12, an external magnetic field applying means 13, a developing device 14, a transfer roll 15, and a cleaning means 1.
7 is placed.

全面加熱手段11としてはフジツシュランf−1)1用
いられ、これによって第2磁性体膚3i15θ0まで加
熱し、熱残留磁化現象によって第、2磁性体増3に第1
磁性体崩の形成する磁界全灯ち消す磁化z4ターンを形
成する。見掛は上磁化が消去された磁気記録体lOは、
次に棒磁石からなる外部磁界印加手段13が形成する磁
界(約200エルステツド)中においてサーマルヘッド
から成る熱ノ9ターン印加手段12によシ1象状に加熱
され、磁気潜像が形成される。この株にして形成された
磁気浩g#は現象器14に送られ、磁性トナー會付盾せ
しめて顕像化された後、バイアス電圧を印加された転写
ロール15で記録紙16に転写される。一方磁気記録体
10は清掃装置1117へ送られ、そこで残留磁性トナ
ーが除去される。複数枚のコピーを作成する場合には、
これらの現像、転写、清掃の工程を繰り返し、所望する
枚数のコピーを得たのチ、フラッシュランプによる全面
加熱で磁気潜像は消去され1次の潜像形成工程に入る。
As the whole surface heating means 11, Fujitshuran f-1) 1 is used, which heats the second magnetic body 3i15θ0 and causes the second magnetic body 3 to become heated by the thermal residual magnetization phenomenon.
Forms a magnetization z4 turn that completely extinguishes the magnetic field formed by the magnetic material collapse. The magnetic recording body lO, whose apparent upper magnetization has been erased, is
Next, in a magnetic field (approximately 200 oersted) formed by an external magnetic field applying means 13 consisting of a bar magnet, it is heated in a quadratic shape by the heat applying means 12 consisting of a thermal head to form a magnetic latent image. . The magnetic g# formed in this stock is sent to the developing device 14, where it is visualized by applying a magnetic toner to it, and then transferred to the recording paper 16 by a transfer roll 15 to which a bias voltage is applied. . On the other hand, the magnetic recording medium 10 is sent to a cleaning device 1117, where residual magnetic toner is removed. If you want to make multiple copies,
After repeating these steps of development, transfer, and cleaning to obtain the desired number of copies, the magnetic latent image is erased by heating the entire surface with a flash lamp, and the first latent image forming step begins.

次に第S図を用いて本発明の磁気記録方法によって反転
磁気潜像を形成する方法について述べる。
Next, a method for forming a reversal magnetic latent image by the magnetic recording method of the present invention will be described using FIG.

本発明によれば、反転磁気潜像は、第2図(c)におい
て印加した外部磁界Hを(b)の段階において印加する
ことにより得られる。すなわち第S図(b)のように全
面加熱時に一方向外部磁界を印加し、その後第5図(c
)のように外部磁界の存在しない状態で熱ノ母ターンを
印加することにより反転磁気潜像を得ることができる。
According to the present invention, the reversal magnetic latent image is obtained by applying the external magnetic field H applied in FIG. 2(c) in the step of FIG. 2(b). That is, as shown in Fig. S (b), a unidirectional external magnetic field is applied when heating the entire surface, and then Fig. 5 (c) is applied.
), a reversal magnetic latent image can be obtained by applying a thermal mother turn in the absence of an external magnetic field.

磁気潜像の消去は全面加熱を行なうことにより達成され
、これによって(a)の段階に戻る。磁気記録をさらに
続ける場合には全面加熱を行なうとと本に一方向外部磁
界を印加することにより(b)の段階に戻せばよい。
Erasure of the magnetic latent image is achieved by heating the entire surface, thereby returning to step (a). If magnetic recording is to be continued further, the book can be returned to step (b) by heating the entire surface and applying a unidirectional external magnetic field to the book.

この反転磁気潜像を形成する場合も、第1図の各椎磁気
記録体會用いることがでさ、このような磁気記録体を用
いて反転磁気/if象を形成する装置は、第を図の磁気
記録装置において、外部磁界印加手段13を熱・ぐター
ン印加手段12の近傍から全面加熱手段11の近傍に設
置しなおせばよい。
When forming this reversed magnetic latent image, it is possible to use each vertebrae magnetic recording body shown in FIG. In the magnetic recording apparatus, the external magnetic field applying means 13 may be relocated from near the heat/magnetic field applying means 12 to near the entire surface heating means 11.

また外部磁界印加手段を制御することにより、全面加熱
手段と熱パターン印加手段を兼用することも可能であり
、さらに外部磁界印力1手段の(i it 換えを行な
うことなく非反転潜像、反転#像の双方の磁気潜像を形
成することができる。したがって装置の小型化多機能化
につながる。
In addition, by controlling the external magnetic field applying means, it is possible to serve both the entire surface heating means and the thermal pattern applying means, and furthermore, it is possible to use one external magnetic field applying means (i It is possible to form both magnetic latent images of the # image.This leads to miniaturization and multifunctionalization of the device.

発明の効果 本発明の磁気記録方法によれば、磁気潜像の非画像部に
おける磁界もれがないので背景部のカプリ等の画質低下
を生じない。さらに龜界印加手段と熱印加手段との位置
設定に高い梢度を必要としないので磁気記録装置の構造
が簡略化される。本発明によれば、磁気記録装置に大き
な変更を加えることなく、反転、非反転の双方の磁気潜
像を形成することができるので、装置の小型化、多機化
ケ促進することができる。
Effects of the Invention According to the magnetic recording method of the present invention, since there is no magnetic field leakage in the non-image area of the magnetic latent image, deterioration in image quality such as capri in the background area does not occur. Furthermore, the structure of the magnetic recording apparatus is simplified because a high degree of precision is not required for positioning the field applying means and the heat applying means. According to the present invention, both inverted and non-inverted magnetic latent images can be formed without making any major changes to the magnetic recording device, thereby promoting miniaturization and multifunctionality of the device.

【図面の簡単な説明】[Brief explanation of drawings]

第1図(a)〜(d)は、本発明を使用できる各種磁気
記録体の構造な示す部分断面図、 第1図(a)〜(c)は、本発明の非反転磁気潜像を形
成する磁気記録装置を説明するための、磁気記録工程図
、 第3図(a)及び(b)は、強磁性体の熱残留磁化現象
を説明するグラフで、(a)は抗磁力H6の温度変化曲
線を示し%(b)は外部磁界Hに対する熱残留磁化曲線
を示しており、 第q図は、本発明を使用できる磁気記録装置の概略図。 第S図is>〜(c)は、本発明の反転山気壱慮を形成
する磁気記録方法ケ祝明するだめの磁気記録工程図であ
る。 1・・・基層、2・・・第1磁性体1−13・・・第コ
磁性体1曽、4・・・中間ll11% 5・・・表面保
護1−% 10・・・磁気記録体、11・・・全面加熱
手段、12・・・熱パターン印加手段、13・・・外部
磁界印加手段、14・・・現像器、15・・・転写ロー
ル、16・・・記録紙、17・・・清掃装置。 第3図 (b) 1 外部磁δ(H)
1(a) to 1(d) are partial cross-sectional views showing the structure of various magnetic recording bodies to which the present invention can be used. A magnetic recording process diagram for explaining the magnetic recording device to be formed. Figures 3(a) and 3(b) are graphs explaining the thermal remanent magnetization phenomenon of ferromagnetic materials, and (a) is a graph for explaining the thermal remanent magnetization phenomenon of a ferromagnetic material. Figure q is a schematic diagram of a magnetic recording device that can use the present invention. Figures S to (c) are magnetic recording process diagrams illustrating the magnetic recording method for forming the inverted mountain atmosphere of the present invention. DESCRIPTION OF SYMBOLS 1... Base layer, 2... First magnetic body 1-13... Comagnetic body 1 so, 4... Intermediate 11% 5... Surface protection 1-% 10... Magnetic recording body , 11...Full surface heating means, 12...Heat pattern application means, 13...External magnetic field application means, 14...Developer, 15...Transfer roll, 16...Recording paper, 17... ...Cleaning device. Figure 3(b) 1 External magnetic δ(H)

Claims (1)

【特許請求の範囲】 0) 少なくとも基層と該基層上に周期的に変調された
磁化パターンが形成された第1磁性体ノーと熱磁化可能
な第2磁性体層とから成る磁気記録体を用いる磁気記録
方法において、第2H1性体層を全曲に亘って加熱して
第/磁性体増の磁化パターンに対し反転しfC,熱残留
磁化を第コ磁性体層に形成し、一定方回の磁界を印加し
つつ第2磁性体増に像状熱ノJ?ターンを印加して第2
磁性体層上にその熱パターンに対応する磁気漕像を形成
し、現11J恢外部値界の存在しない条件下でfjll
、24m性体膚會全面にわたって加熱することによシ上
配磁気m稼を消去することから成る磁気記録方法。 (2) 少なくとも基層と該基層上に周期的に変調され
fc磁化パターンが形成された第/磁性体増と熱磁化可
能な第コ磁性体層とから成る磁気記録体を用いる釦I己
録方法において、一定方向の磁界を印加しつつ第2磁性
体層を全面に亘って加熱し、外部磁界を印加しない条件
下で第2′#HL性体層に像状熱ノぐターンを印加して
その熱パターンに対して反転し7′c磁気′a像を形成
し、現像後外部磁界の存在しない条件下で第2磁性体層
を全面にわたって加熱することによシ上配磁気潜gIを
消去することから成る磁気dC録方法、
[Claims] 0) A magnetic recording body comprising at least a base layer, a first magnetic layer on which a periodically modulated magnetization pattern is formed, and a second magnetic layer that can be thermally magnetized is used. In the magnetic recording method, the second H1 magnetic layer is heated over the entire song to reverse the magnetization pattern of the magnetic material increase fC, and to form thermal remanent magnetization in the co-magnetic layer, and to apply a magnetic field of a constant direction. While applying J? Apply the turn and apply the second
A magnetic column image corresponding to the thermal pattern is formed on the magnetic layer, and the current
, 24mA magnetic recording method comprising erasing the upper magnetic field by heating the entire surface of the body. (2) A button I self-recording method using a magnetic recording body consisting of at least a base layer, a magnetic material layer on which an fc magnetization pattern is periodically modulated, and a thermomagnetizable co-magnetic material layer. In this step, the second magnetic layer is heated over the entire surface while applying a magnetic field in a fixed direction, and an image-shaped thermal turn is applied to the second HL layer under the condition that no external magnetic field is applied. The thermal pattern is reversed to form a 7'c magnetic'a image, and after development, the upper magnetic latent gI is erased by heating the second magnetic layer over the entire surface in the absence of an external magnetic field. a magnetic dC recording method comprising:
JP4959684A 1984-03-15 1984-03-15 Magnetic recording method Pending JPS60194483A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4959684A JPS60194483A (en) 1984-03-15 1984-03-15 Magnetic recording method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4959684A JPS60194483A (en) 1984-03-15 1984-03-15 Magnetic recording method

Publications (1)

Publication Number Publication Date
JPS60194483A true JPS60194483A (en) 1985-10-02

Family

ID=12835608

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4959684A Pending JPS60194483A (en) 1984-03-15 1984-03-15 Magnetic recording method

Country Status (1)

Country Link
JP (1) JPS60194483A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179193B1 (en) 1997-03-07 2001-01-30 Nagai Works Co., Ltd. Stapler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6179193B1 (en) 1997-03-07 2001-01-30 Nagai Works Co., Ltd. Stapler

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