JPS6161176B2 - - Google Patents
Info
- Publication number
- JPS6161176B2 JPS6161176B2 JP5548279A JP5548279A JPS6161176B2 JP S6161176 B2 JPS6161176 B2 JP S6161176B2 JP 5548279 A JP5548279 A JP 5548279A JP 5548279 A JP5548279 A JP 5548279A JP S6161176 B2 JPS6161176 B2 JP S6161176B2
- Authority
- JP
- Japan
- Prior art keywords
- surface lubricant
- lubricant
- magnetic disk
- solvent
- magnetic
- 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.)
- Expired
Links
Landscapes
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Description
【発明の詳細な説明】
本発明は磁気デイスクに対し表面潤滑剤を適量
塗布せんとする製造方法に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a manufacturing method for applying an appropriate amount of surface lubricant to a magnetic disk.
最近、電子計算機の利用が質、量ともに進展し
ているため、外部記憶装置に対する記憶容量増加
の要求も日に日に強まつている。これ等の要求に
対応するため、磁気デイスク装置においては、停
止時に磁気ヘツドが磁気記録媒体塗膜面に接触し
運転時磁気デイスクの回転（数千rpm）による風
圧で浮上するいわゆるコンタクトスタートストツ
プ形（略称CSS形）が普及して来た。 Recently, as the use of electronic computers has progressed both in quality and quantity, the demand for increased storage capacity of external storage devices has become stronger day by day. In order to meet these demands, magnetic disk devices are equipped with a so-called contact start stop, in which the magnetic head comes into contact with the coated surface of the magnetic recording medium when stopped, and floats up due to the wind pressure generated by the rotation (several thousand rpm) of the magnetic disk during operation. Forms (abbreviated as CSS forms) have become popular.
このCSS形においては、最近では浮上量が0.4
μｍを下廻る様になつて来ているため、磁気ヘツ
ドと磁気記録媒体との接触による損傷を保護する
ため、表面潤滑剤を塗布している。 Recently, the flying height of this CSS type has been increased to 0.4.
Since the magnetic head is becoming smaller than .mu.m, a surface lubricant is applied to protect it from damage caused by contact between the magnetic head and the magnetic recording medium.
この表面潤滑剤は一度塗布した場合、そのデイ
スク装置の寿命丈機能を発揮せねばならぬので、
現在はフツ素系の潤滑剤が主体となつているが、
その適量塗布は非常に困難であつて、一旦過剰に
塗布した後過剰分を除去するのが現在の標準的方
法である。この除去方法として、普通は拭き取り
除去しているが、この方法では時間がかゝり、全
面を均一に拭く事が難かしく、又拭き取りの際拭
き取り紙の一部が異物として磁気デイスク表面に
付着して障害を生ずる恐れもある。 Once applied, this surface lubricant must function for the lifetime of the disk device.
Currently, fluorine-based lubricants are mainly used,
It is very difficult to apply the appropriate amount, and the current standard method is to apply an excessive amount and then remove the excess. The usual way to remove this is to wipe it off, but this method is time consuming and difficult to wipe the entire surface uniformly, and when wiping, some of the wiping paper sticks to the surface of the magnetic disk as foreign matter. There is also the risk of causing problems.
本発明は前記の如き欠点を改善せんとするもの
で、この目的は、磁気デイスクの磁性塗膜上に充
分表面潤滑剤を塗布した後、該表面潤滑剤の過剰
分を除去するに当つて、前記表面潤滑剤に対する
溶剤をスピンコート法を用いて前記表面潤滑剤の
表面に滴下することにより、前記表面潤滑剤の過
剰分を除去する本方式により達成できる。 The present invention aims to improve the above-mentioned drawbacks.The purpose of the present invention is to apply a sufficient amount of surface lubricant onto the magnetic coating film of a magnetic disk, and then remove the excess surface lubricant. This can be achieved by this method in which the excess amount of the surface lubricant is removed by dropping a solvent for the surface lubricant onto the surface of the surface lubricant using a spin coating method.
以下図面を参照して、本発明を詳細に説明す
る。 The present invention will be described in detail below with reference to the drawings.
第１図は本発明の実施例を示す図である。 FIG. 1 is a diagram showing an embodiment of the present invention.
磁気デイスクは表面に磁気記録媒体の塗膜を形
成した後、表面潤滑剤を充分塗布した状態にあ
る。この表面潤滑剤はフツ素系の潤滑剤が主体
で、本実施例においてはクライトツクス
（KRX）を用いている。クライトツクスは溶剤
（本実施例ではフロリナート即ちFC77）を除去す
るため一旦炉に入れて加熱した後、第１図に示す
如く、クライトツクスの過剰分を除去するため、
表面潤滑剤を塗布してある磁気デイスク表面１を
スピンドル５により300〜1000rpmに回転させ、
磁気デイスクの内周部にクライトツクスの溶剤と
してイソプロピルアルコール又はフレオン系溶剤
のフレオン又はフロリナート（FC77）を表面潤
滑剤の溶剤滴下装置２より滴下し、表面潤滑剤塗
膜の上にスピンコート法により塗布する。この表
面潤滑剤塗膜上に塗布した溶剤３によりクライト
ツクスの過剰分が溶解して、遠心力により４の如
く除去される。 After forming a coating film of a magnetic recording medium on the surface of a magnetic disk, the surface is sufficiently coated with a surface lubricant. This surface lubricant is mainly a fluorine-based lubricant, and in this embodiment KRX is used. After Krytox is heated in a furnace to remove the solvent (in this example, Fluorinert, or FC77), as shown in Figure 1, in order to remove the excess of Klytx,
The magnetic disk surface 1 coated with surface lubricant is rotated at 300 to 1000 rpm by the spindle 5.
Isopropyl alcohol or Freon-based solvent Freon or Fluorinert (FC77) is dripped onto the inner circumference of the magnetic disk from the surface lubricant solvent dripping device 2 as a Krytx solvent, and applied onto the surface lubricant coating using a spin coating method. do. The excess amount of Krytox is dissolved by the solvent 3 applied on this surface lubricant coating and removed as shown in 4 by centrifugal force.
本実施例においては、イソプロピルアルコール
の場合10〜15c.c.程度、又フロリナートの場合５c.c.
程度で好結果を得た。 In this example, in the case of isopropyl alcohol, it was about 10 to 15 c.c., and in the case of Fluorinert, it was about 5 c.c.
Good results were obtained.
以上述べた如く、本発明の方式によれば、従来
の拭き取り方式に比し、過剰な表面潤滑剤の除去
を、１ 作業時間の上で３〜10分から数秒に短縮
し、２ 磁気デイスク表面をムラなく均一に過剰
剤を除去し、３ 磁気デイスク表面に拭き取り紙
の場合と違つて異物をつける恐れがなく、容易に
迅速に且つ経済的に作業出来る。 As described above, the method of the present invention shortens the removal of excess surface lubricant from 3 to 10 minutes to several seconds in comparison with the conventional wiping method; Excess agent is removed evenly and uniformly. 3. There is no fear of foreign matter being attached to the surface of the magnetic disk unlike when using wiping paper, and the work can be done easily, quickly and economically.
第１図は本発明の実施例を示す図である。
図中、１は表面潤滑剤を塗布してある磁気デイ
スク表面、２は表面潤滑剤の溶剤滴下装置、３は
表面潤滑剤塗膜上に塗布された溶剤、４は溶剤に
溶かされて飛散する表面潤滑剤過剰分、５は磁気
デイスクを回転させるスピンドルである。
FIG. 1 is a diagram showing an embodiment of the present invention. In the figure, 1 is the surface of the magnetic disk coated with surface lubricant, 2 is the solvent dripping device for the surface lubricant, 3 is the solvent applied on the surface lubricant coating, and 4 is dissolved in the solvent and scattered. The excess surface lubricant, 5, is a spindle that rotates the magnetic disk.
Claims (1)
を塗布した後、該表面潤滑剤の過剰分を除去する
に当つて、前記表面潤滑剤に対する溶剤をスピン
コート法を用いて前記表面潤滑剤の表面に滴下す
ることにより、前記表面潤滑剤の過剰分を除去す
ることを特徴とする磁気デイスク円板の製造方
法。1. After sufficiently coating the surface lubricant on the magnetic coating film of the magnetic disk, in order to remove the excess amount of the surface lubricant, a solvent for the surface lubricant is applied to the surface lubricant using a spin coating method. A method for manufacturing a magnetic disk disc, characterized in that an excess amount of the surface lubricant is removed by dropping the lubricant onto the surface.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5548279A JPS55150135A (en) | 1979-05-07 | 1979-05-07 | Manufacture of magnetic disk |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP5548279A JPS55150135A (en) | 1979-05-07 | 1979-05-07 | Manufacture of magnetic disk |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55150135A JPS55150135A (en) | 1980-11-21 |
| JPS6161176B2 true JPS6161176B2 (en) | 1986-12-24 |
Family
ID=12999830
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP5548279A Granted JPS55150135A (en) | 1979-05-07 | 1979-05-07 | Manufacture of magnetic disk |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS55150135A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4600794B2 (en) * | 2001-01-24 | 2010-12-15 | 富士電機デバイステクノロジー株式会社 | Method for manufacturing magnetic recording medium |
-
1979
- 1979-05-07 JP JP5548279A patent/JPS55150135A/en active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS55150135A (en) | 1980-11-21 |
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