JPH02161615A - Method for polishing magnetic recording medium - Google Patents
Method for polishing magnetic recording mediumInfo
- Publication number
- JPH02161615A JPH02161615A JP31541188A JP31541188A JPH02161615A JP H02161615 A JPH02161615 A JP H02161615A JP 31541188 A JP31541188 A JP 31541188A JP 31541188 A JP31541188 A JP 31541188A JP H02161615 A JPH02161615 A JP H02161615A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic recording
- polishing
- contact
- guide post
- 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.)
- Granted
Links
- 238000005498 polishing Methods 0.000 title claims abstract description 53
- 238000000034 method Methods 0.000 title claims description 18
- 238000007517 polishing process Methods 0.000 claims description 7
- 230000000694 effects Effects 0.000 abstract description 9
- 239000010408 film Substances 0.000 abstract description 9
- 239000006061 abrasive grain Substances 0.000 abstract description 5
- 238000003825 pressing Methods 0.000 abstract description 4
- 239000010409 thin film Substances 0.000 abstract description 2
- 230000037303 wrinkles Effects 0.000 abstract description 2
- 230000010355 oscillation Effects 0.000 abstract 1
- 239000011248 coating agent Substances 0.000 description 8
- 238000000576 coating method Methods 0.000 description 8
- 230000015572 biosynthetic process Effects 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- 239000003973 paint Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 230000003746 surface roughness Effects 0.000 description 2
- -1 Paraco-1 Substances 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Abstract
Description
【発明の詳細な説明】
産業上の利用分野
本発明は磁気記録媒体の製造方法に係り、特に研摩性の
向上に好適な、ビデオテ・−プ、フロッピーディスク等
の磁気記録媒体の研摩方法に関する。DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method for manufacturing a magnetic recording medium, and more particularly to a method for polishing magnetic recording media such as video tapes and floppy disks, which is suitable for improving polishing properties.
従来の技術
磁性粉末、バインダより成る磁気記録媒体は、記録密度
の増加に伴い薄膜化および表面精度の向上が要求され、
一般に磁気記録媒体表面の研摩によりその目的が達成さ
れている。具体的な方法として、高密度ビデオテープの
研摩方法を例にとり説明する。第２図において、４は非
磁性支持体」二に磁性塗料およびパラクコ・−ト塗料を
塗布した後、硬化を行って作ったビデオテープ、３はム
β２０３゜ＳｉＣ、Ｆｅ２Ｏ３等を研摩材に用いたラッ
ピングテープ、５は各テープを支持するだめのガイドボ
ストである。ビデオテ・−プ°４は速度１ｃ）ｏｍ／ｍ
ｉｎで矢印ムの方向に走行し２ている。ラッピングテー
プ３は、速度２０ｍｍ／ｍｊ、ｎで矢印Ｂの方向に走行
している。ビデオテープ４はガイドボスト５−上に巻付
けられたラッピングテ・−プ３と接触、研摩させられる
ことにより、塗膜」二の微小突起、微小異物等が除去さ
れ、所定の表面精度を出している。Conventional technology Magnetic recording media made of magnetic powder and binder are required to be thinner and have better surface precision as recording density increases.
Generally, this objective is achieved by polishing the surface of the magnetic recording medium. As a specific method, a high-density videotape polishing method will be explained as an example. In Fig. 2, 4 is a videotape made by coating a non-magnetic support with magnetic paint and paracoat paint and then curing it; 5 is a guide post that supports each wrapping tape. Video tape °4 is speed 1c) om/m
The car is traveling in the direction of the arrow M at 2. The wrapping tape 3 is running in the direction of arrow B at a speed of 20 mm/mj, n. The video tape 4 is brought into contact with the lapping tape 3 wrapped around the guide post 5 and polished, thereby removing minute protrusions, minute foreign matter, etc. from the coating film and achieving a predetermined surface precision. ing.
一般的には磁性層のみを研摩しているが、高密度ビデオ
テープの場合においては、磁性面だけでなく、バックコ
ート面の研摩も行なっている。上記塗膜欠陥等は、ドロ
ップアウト、出力変動等の原因となるものであり、特に
高密度ビデオテープ、高密度フロッピーディスク等にお
いては、磁性塗膜、パラクコ−１・塗膜表面の研摩は品
質、歩留りの向上に大きく貢献している。Generally, only the magnetic layer is polished, but in the case of high-density video tapes, not only the magnetic surface but also the back coat surface is polished. The above-mentioned coating film defects cause dropouts, output fluctuations, etc. Especially in high-density video tapes, high-density floppy disks, etc., polishing of the magnetic coating film, Paraco-1, and coating surface is a quality issue. , which greatly contributes to improving yield.
研摩性の向上を図る方法としては従来から種々提案され
ており、例えば特開昭６１−１３６７６４号公報には、
加圧エアーを用いたフロンビーディスクの研摩方法が示
されている。この方法は加圧エアーの風圧によりラッピ
ングテープを回転している７０ノビ−ディスクに押し付
け、研摩を行う方法であるが、これは研摩粉や空気中の
粉塵を加圧エアーで吹き飛ばすことを目的としたもので
あり、またフロッピーディスクの両面に相対向して加圧
エアーを噴出することにより、ラッピングテープとフロ
ッピーディスクの均一で適切な圧力の接触を得ることが
でき、高精度なフロッピーディスク表面を形成すること
を特徴とするものである。Various methods have been proposed in the past to improve polishing properties. For example, Japanese Patent Laid-Open No. 136764/1983
A method of polishing Fromby disks using pressurized air is shown. This method uses the pressure of pressurized air to press the wrapping tape against a rotating 70-knobby disk for polishing, but the purpose of this method is to blow away polishing powder and dust in the air with pressurized air. By blowing out pressurized air facing each other on both sides of the floppy disk, it is possible to obtain uniform and appropriate pressure contact between the wrapping tape and the floppy disk, resulting in a high-precision floppy disk surface. It is characterized by forming.
発明が解決しようとする課題
しかしながら磁気記録媒体の研摩を行うため、磁気記録
媒体をラッピングテープに接触、走行させた場合、走行
速度が高速になると磁気記録媒体とラッピングテープの
接触面に空気層を生じ、浮上するため、磁気記録媒体と
ラッピングテープが十分接触せず、十分な研摩効果が得
られないという問題点を有していた。Problems to be Solved by the Invention However, in order to polish a magnetic recording medium, when the magnetic recording medium is brought into contact with a wrapping tape and made to run, as the traveling speed becomes high, an air layer forms at the contact surface between the magnetic recording medium and the wrapping tape. As a result, the magnetic recording medium and the lapping tape do not come into sufficient contact with each other, resulting in a problem that a sufficient polishing effect cannot be obtained.
また、この空気層による浮上を防止するため加圧エアー
の風圧を磁気記録媒体あるいはラッピングテープに加え
ながら研摩する上記の従来の技術は膜厚が８０μｍと比
較的厚いフロッピーディスクの場合に加圧エア・−の風
圧を用いるものであり、フロッピーディスクに対しては
有効ではあるが、この方法をビデオテープ等、特に総厚
３０μｍ以下の磁気記録媒体の研摩に用いると、膜厚が
薄いために走行しているビデオテープが空電の風圧によ
り振動し折れ曲り、ビデオテープにしわが発生し、ドロ
ップアウト、出力変動、走行不良等の原因となるという
問題が生じるため、ビデオテ・−プの研摩には使用でき
ない。In addition, in order to prevent floating due to this air layer, the above-mentioned conventional technique of polishing while applying wind pressure of pressurized air to the magnetic recording medium or wrapping tape is not suitable for floppy disks with a relatively thick film thickness of 80 μm. - This method uses wind pressure of -, and is effective for floppy disks, but if this method is used to polish magnetic recording media such as video tapes, especially those with a total thickness of 30 μm or less, the film will be thin and will not run properly. Polishing of video tapes causes problems such as vibration and bending due to the wind pressure of static electricity, causing wrinkles in the video tapes, which can cause dropouts, output fluctuations, poor running, etc. I can not use it.
また、一般に磁気記録媒体の研摩を行うために、研摩部
材を巻付けた固定円柱状ガイドボストに磁気記録媒体を
接触、走行させるが、ガイドボストを固定した１まだと
、ガイドボスト表面の凹凸により、磁気記録媒体と研摩
部材が均一に接触せず、十分な研摩効果が得られないと
いう問題点を有１７ていた。Generally, in order to polish a magnetic recording medium, the magnetic recording medium is brought into contact with and runs on a fixed cylindrical guide post around which a polishing member is wrapped. However, there was a problem in that the magnetic recording medium and the polishing member did not come into uniform contact with each other, and a sufficient polishing effect could not be obtained.
本発明はかかる点に鑑み、比較的薄い膜厚の磁気記録媒
体の走行速度が高くても十分な研摩効果が得られる磁気
記録媒体の研摩方法を提供せんとするものである。In view of the above, the present invention aims to provide a method for polishing a magnetic recording medium that can obtain a sufficient polishing effect even when a magnetic recording medium with a relatively thin film thickness is running at a high speed.
課題を解決するだめの手段
本発明は」二記課題を解決するものであり、支持体およ
び砥粒層から成る研摩部材に磁気記録媒体を接触走行さ
せながら研摩を行うに際し、研摩部材および磁気記録媒
体の接触部全体を圧縮空気により均一に押圧しながら磁
気記録媒体の研摩を行うものであり、また研摩部材およ
び磁気記録媒体を円柱状のガイドボストに巻付け、この
ガイドボストを回転させながら磁気記録媒体の研摩を行
うものである。Means for Solving the Problems The present invention solves the second problem, and when polishing is performed while a magnetic recording medium is running in contact with a polishing member consisting of a support and an abrasive grain layer, the polishing member and the magnetic recording medium are The magnetic recording medium is polished while uniformly pressing the entire contact area of the medium with compressed air.The polishing member and the magnetic recording medium are wrapped around a cylindrical guide post, and the guide post is rotated while the magnetic recording medium is polished. This polishes the recording medium.
作用
上記のように本発明の研摩方法は、塗膜の研摩を行うた
めに、磁気記録媒体を研摩部材に接触、高速走行させて
も磁気記録媒体と研摩部材との接触部全体を圧縮空気に
よりほぼ一定の圧力で押圧することにより、空気の巻込
みを防止することができ、磁気記録媒体と研摩部材との
十分な接触が実現され、さらに磁気記録媒体の振動の発
生を防止するため、しわが発生せず、良好な研摩性が得
られる。As described above, in the polishing method of the present invention, in order to polish a coating film, the magnetic recording medium is brought into contact with the polishing member, and even if the magnetic recording medium is run at high speed, the entire contact area between the magnetic recording medium and the polishing member is covered with compressed air. By pressing with a substantially constant pressure, it is possible to prevent air entrainment, achieve sufficient contact between the magnetic recording medium and the abrasive member, and furthermore, to prevent the generation of vibrations in the magnetic recording medium, Good abrasiveness is obtained without forming creases.
また、本発明の研摩方法は塗膜の研摩を行うため円柱状
のガイドボストに巻付けられた研摩部材に、磁気記録媒
体を接触、走行させているが、円柱状のガイドボストを
回転させることにより、ガイドボスト表面の凹凸による
接触むらが生じることを防止することができ、均一な研
摩性を得ることができる。Furthermore, in the polishing method of the present invention, a magnetic recording medium is brought into contact with and runs on a polishing member wrapped around a cylindrical guide post in order to polish a coating film. Accordingly, it is possible to prevent uneven contact caused by unevenness on the surface of the guide post, and it is possible to obtain uniform polishing performance.
実施例
以下本発明の実施例について、図面を参照しながら説明
する。EXAMPLES Hereinafter, examples of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例における磁気記録媒体の研摩
方法を示すものである。第１図において、周方向表面粗
さＲｍａｘ ＝ １．２μｍ、軸方向表面粗さＲｍａｘ
＝１５μｍ に表面研摩仕上げを行なったステンレス鋼
を使用した直径ｅｍｍの回転ガイドボスト２に巻付は角
１２０度で巻付けられたラッピングテープ３は、矢印Ｂ
の方向に、張力ｅｏＩ、速度２０ｍ１１１／／ｍｉｎの
条件で走行している。高密度のビデオテープ４はラッピ
ングテープ３に磁性面が接触するように、巻付は角θが
θ＝３０度で巻イ４けられ、矢印ムの方向に張カフ０ｇ
、速度３８０ｍ１／ｗｉｎの条件で走行している。ガイ
ドボスト２上にビデオテープ４をラッピングチー１３に
押え付けるため、エアーノズル１が設けられている。圧
縮空気はエアー供給口１ａより供給し、エアー溜め１ｂ
で圧力を均一化した後、ビデオテープとラッピングテー
プの接触面全体に均一に圧力を加えるため、適切な形状
を選定したエアー吐出口１Ｃより噴出させる。このエア
ー吐出口１ｃの開口端１ａ、１ｅは、頂度、ビデオテー
プ４とラッピングチ＝１３との接触部分全体にほぼ均一
な圧縮空気が印加されるように、巻句は角θの境界線上
にある。本実施例で使用したラッピングテープ３は、厚
さ２３．ｃｚｍ、幅２５ｍｍのベー、Ｘ ７ イルム上
に公称粒径２μｍの砥粒を含む砥粒層が６〜７μｍの厚
さで形成されたもので、ビデオテープ４よりも幅を広く
しである。ガイドボスト２は強制的にビデオテープの走
行方向と反対方向に回転させることが可能である。本実
施例においては、第１表に示すようにエアーノズルに加
える圧縮空気の圧力およびガイドポストの回転周速を変
化させて高密度ビデオテープの研摩を行った。FIG. 1 shows a method of polishing a magnetic recording medium in one embodiment of the present invention. In Fig. 1, circumferential surface roughness Rmax = 1.2 μm, axial surface roughness Rmax
The wrapping tape 3 is wrapped at an angle of 120 degrees around a rotary guide post 2 made of stainless steel with a diameter of emm and has a surface polished finish of = 15 μm.
The vehicle is traveling in the direction of , under the conditions of tension eoI and speed of 20 m111//min. The high-density video tape 4 is wound with an angle θ = 30 degrees so that the magnetic surface is in contact with the wrapping tape 3, and the tension cuff is 0 g in the direction of the arrow M.
, the vehicle is traveling at a speed of 380 m1/win. An air nozzle 1 is provided on the guide post 2 to press the video tape 4 against the wrapping tee 13. Compressed air is supplied from the air supply port 1a, and the air reservoir 1b
After the pressure is equalized, air is ejected from an appropriately shaped air outlet 1C in order to uniformly apply pressure to the entire contact surface between the video tape and the wrapping tape. The opening ends 1a and 1e of the air discharge port 1c are located at the top, and the winding line is located on the boundary line of the angle θ so that almost uniform compressed air is applied to the entire contact area between the video tape 4 and the wrapping channel 13. It is in. The wrapping tape 3 used in this example had a thickness of 23. An abrasive grain layer containing abrasive grains with a nominal particle size of 2 μm is formed on a base film with a width of 25 mm and an abrasive grain layer with a thickness of 6 to 7 μm, and is wider than the video tape 4. The guide post 2 can be forcibly rotated in a direction opposite to the running direction of the video tape. In this example, a high-density videotape was polished by varying the pressure of compressed air applied to the air nozzle and the peripheral speed of rotation of the guide post as shown in Table 1.
第１表
比較例
なお、比較例として第１図に示した従来の方法で、実施
例と同様の条件で研摩を行った結果を第１表に示す。Table 1 Comparative Example Table 1 shows the results of polishing as a comparative example using the conventional method shown in FIG. 1 under the same conditions as in the Examples.
以上の研摩を行ったビデオテープは、市販されているビ
デオデツキを使用し、ドロップアウトの測定を行うこと
により、第１表に示すような効果の確認を行ったもので
ある。The video tapes subjected to the above polishing were tested for dropout using a commercially available video deck, and the effects shown in Table 1 were confirmed.
第１表において、ドロップアウトは、幅１５μｇｅｅ。In Table 1, the dropout is 15 μgee wide.
１６ （１８以上の大きさのものを検出した。第１表よ
り明らかなように本発明の研摩方法を用いると、ドロッ
プアウトを大幅に低減することが可能である。特にエア
ー圧力が３．０ ｋｇ／ａｔ以上の場合、さらに効果が
大きい。16 (18 or larger particles were detected. As is clear from Table 1, by using the polishing method of the present invention, it is possible to significantly reduce dropouts. Especially when the air pressure is 3.0 When the amount is more than kg/at, the effect is even greater.
エアー圧力は２．Ｏ１ｇ層以下ではビデオテープとラッ
ピングテープの接触面の空気層の発生を抑えることがで
きず、十分な研摩効果を得難いが、効果的な研摩を実現
するためにはビデオテープの走行速度に対してエアー圧
力を適当に選択することが必要である。Air pressure is 2. If the O1g layer is below, it is impossible to suppress the formation of an air layer at the contact surface between the videotape and the wrapping tape, making it difficult to obtain a sufficient polishing effect.However, in order to achieve effective polishing, it is necessary to It is necessary to select the air pressure appropriately.
ビデオテープとラッピングテープのガイドボストへの巻
付は角は大きいほど研摩面積が増加し研摩効果は高いが
、研摩面積が増加し過ぎると接触抵抗が大きくなり、ビ
デオテープに過大なテンションが加わるため、適切な巻
付は角を選定することが必要である。When wrapping the videotape and wrapping tape around the guide post, the larger the corner, the greater the polishing area and the higher the polishing effect, but if the polishing area increases too much, the contact resistance increases and excessive tension is applied to the videotape. , it is necessary to select the corners for proper wrapping.
本実施例ではエアー吐出口の形状を円弧状にｌ〜ＩＫ、
ラッピングテープとビデオテープの接触部全体に均−力
、押圧力を力えることができる形状であれば台形、矩形
等の形状にＩ７ても良い。In this embodiment, the shape of the air outlet is arcuate from l to IK.
The shape I7 may be a trapezoid, a rectangle, etc. as long as it can apply uniform force and pressing force to the entire contact area between the wrapping tape and the video tape.
また、ラッピングテープとビデオテープの接触部全体を
抑圧するために圧縮空気の圧力をゴム膜等に加え、ゴム
膜を通して接触部を押圧（−ても良い。、また、圧縮空
気を使用せず、ゴム等の弾性体で直接押圧しても良い。In addition, in order to suppress the entire contact area between the wrapping tape and the video tape, compressed air pressure may be applied to a rubber membrane, etc., and the contact area may be pressed through the rubber membrane. It may be directly pressed with an elastic body such as rubber.
なお、ガイドボストはビデオテープの走行速度に対して
十分大きな相対周速を得るため、ビデオテープの走行方
向と反対に高速で回転させた場合がより効果的である。Note that in order to obtain a circumferential speed sufficiently large relative to the running speed of the videotape, the guide post is more effective when rotated at high speed in the opposite direction to the running direction of the videotape.
また、本実施例は、ラッピングテープ３上にビデオテ・
−デ４を重ねているが、回転ガイドボス）２１にビデオ
テープ４を重ね、さらにビデオテ・−プ４上にラッピン
グデ・−１３を重ねるようにして研）デしても、はぼ同
等の効果が得られるものである。１だ、本発明の方法は
フロッピーデ、イスク等、他の磁気記録媒体等にも適用
できる。In addition, in this embodiment, the video tape is placed on the wrapping tape 3.
Even if you superimpose the videotape 4 on the rotating guide boss 21 and then overlap the wrapping tape 13 on top of the videotape 4, the result will still be the same. It is effective. 1. The method of the present invention can also be applied to other magnetic recording media such as floppy disks and disks.
発明の効果
本発明によれば、磁気記録媒体の研摩を行うに際１．７
て、磁気記録媒体と研摩部材の接触面に空気層が生じる
のを防止することができ、また、磁気記録媒体と研摩部
材の当りむらを除去ず為ことができるため、磁気記録媒
体と研摩部材が十分に、かつ、均一に接触１２、高精度
の塗膜表面をなす磁気記録媒体を歩留り良く、高速で得
ることができる。まだ、ガイドボストラ・用いて、これ
を回転させることにより、ガイドボスト表面の凹凸によ
る接触むらが生じることを防止することができる。Effects of the Invention According to the present invention, when polishing a magnetic recording medium, 1.7
This prevents the formation of an air layer on the contact surface between the magnetic recording medium and the abrasive member, and also eliminates uneven contact between the magnetic recording medium and the abrasive member. A magnetic recording medium having sufficient and uniform contact 12 and a highly accurate coating surface can be obtained at high yield and at high speed. However, by using a guide post and rotating it, it is possible to prevent uneven contact due to unevenness on the guide post surface.
第１図は本発明の一実施例における磁気記録媒体の研摩
方法を示す概略図、第２図は従来の研摩方法を示す概略
図である。
１・・・・・・エアーノズル、１＆・・・・・・エアー
供給口、１ｂ・・・・・・エアー溜め、１Ｃ・・・・・
・エア・−吐出口、２・・・・・・回転ガイドポスト、
３・・・・・・ラッピングテープ、４・・・・・・ビデ
オテープ、５・・・・・・ガイドボスト。FIG. 1 is a schematic diagram showing a method of polishing a magnetic recording medium according to an embodiment of the present invention, and FIG. 2 is a schematic diagram showing a conventional polishing method. 1...Air nozzle, 1&...Air supply port, 1b...Air reservoir, 1C...
・Air-discharge port, 2...Rotating guide post,
3...Wrapping tape, 4...Video tape, 5...Guide boss.
Claims (5)
媒体を接触走行させながら研摩を行うに際し、圧縮空気
により研摩部材および磁気記録媒体の接触部全体をほぼ
均一に押圧しながら前記磁気記録媒体の研摩を行うこと
を特徴とする磁気記録媒体の研摩方法。(1) When performing polishing while running a magnetic recording medium in contact with an abrasive member consisting of a support and an abrasive layer, compressed air is used to press the entire contact area of the abrasive member and the magnetic recording medium almost uniformly while recording the magnetic recording medium. A method for polishing a magnetic recording medium, the method comprising polishing the medium.
録媒体を巻き付け、前記磁気記録媒体の裏面から前記ガ
イドポストに対向してこれら両者の接触部全体をほぼ均
一に押圧するエアーノズルを配置したことを特徴とする
請求項１記載の磁気記録媒体の研摩方法。(2) An abrasive member and a magnetic recording medium are wound around a cylindrical guide post, and an air nozzle is arranged from the back side of the magnetic recording medium to face the guide post and press almost uniformly the entire contact area between the two. 2. The method of polishing a magnetic recording medium according to claim 1.
の吐出口が前記ガイドポストの曲率より、小さい曲率の
円弧状であることを特徴とする請求項２記載の磁気記録
媒体の研摩方法。(3) The method of polishing a magnetic recording medium according to claim 2, wherein the air nozzle has an air reservoir in the middle, and the discharge opening thereof has an arcuate shape with a smaller curvature than the curvature of the guide post.
、前記研摩部材および前記磁気記録媒体の巻付けられた
前記ガイドポストとエアーノズルとのすきまが、前記研
摩部材および前記磁気記録媒体の接触開始部および接触
終了部で狭く、かつ接触中央部で広く設けたことを特徴
とする請求項２記載の磁気記録媒体の研摩方法。(4) In the contact portion between the polishing member and the magnetic recording medium, the gap between the guide post around which the polishing member and the magnetic recording medium are wound and the air nozzle is such that the contact starting point between the polishing member and the magnetic recording medium is 3. The method of polishing a magnetic recording medium according to claim 2, wherein the contact is narrow at the end of the contact and wide at the center of the contact.
体の研摩を行うことを特徴とする請求項１記載の磁気記
録媒体の研摩方法。(5) The method of polishing a magnetic recording medium according to claim 1, wherein the magnetic recording medium is polished while rotating a cylindrical guide post.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63315411A JP2605846B2 (en) | 1988-12-14 | 1988-12-14 | Polishing method for magnetic recording media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP63315411A JP2605846B2 (en) | 1988-12-14 | 1988-12-14 | Polishing method for magnetic recording media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH02161615A true JPH02161615A (en) | 1990-06-21 |
| JP2605846B2 JP2605846B2 (en) | 1997-04-30 |
Family
ID=18065065
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP63315411A Expired - Fee Related JP2605846B2 (en) | 1988-12-14 | 1988-12-14 | Polishing method for magnetic recording media |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2605846B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390712A (en) * | 2020-03-31 | 2020-07-10 | 郑文豪 | Manufacturing and machining method of stainless steel water tank |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166223A (en) * | 1984-09-06 | 1986-04-05 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
| JPS62199347A (en) * | 1986-02-27 | 1987-09-03 | Fuji Photo Film Co Ltd | Varnishing device |
-
1988
- 1988-12-14 JP JP63315411A patent/JP2605846B2/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6166223A (en) * | 1984-09-06 | 1986-04-05 | Matsushita Electric Ind Co Ltd | Production of magnetic recording medium |
| JPS62199347A (en) * | 1986-02-27 | 1987-09-03 | Fuji Photo Film Co Ltd | Varnishing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111390712A (en) * | 2020-03-31 | 2020-07-10 | 郑文豪 | Manufacturing and machining method of stainless steel water tank |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2605846B2 (en) | 1997-04-30 |
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| LAPS | Cancellation because of no payment of annual fees |