JPH0646441B2 - Magnetic recording media - Google Patents
Magnetic recording mediaInfo
- Publication number
- JPH0646441B2 JPH0646441B2 JP60207661A JP20766185A JPH0646441B2 JP H0646441 B2 JPH0646441 B2 JP H0646441B2 JP 60207661 A JP60207661 A JP 60207661A JP 20766185 A JP20766185 A JP 20766185A JP H0646441 B2 JPH0646441 B2 JP H0646441B2
- Authority
- JP
- Japan
- Prior art keywords
- protective film
- magnetic recording
- cf
- oh
- present invention
- 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 - Lifetime
Links
Description
【発明の詳細な説明】 〔産業上の利用分野〕 本発明は計算機用大容量ファイル装置等に用いられる磁気記録媒体に関する。 BACKGROUND OF THE INVENTION [FIELD OF THE INVENTION The present invention relates to a magnetic recording medium used in a computer for large files or the like.
従来、計算機の外部記録装置に用いられる磁気ディスク装置は、高性能化する目的でコンタクト・スタート・ストップ（以後CSSと言う）方式を採用している。 Conventionally, a magnetic disk apparatus for use in an external recording apparatus of computer, (referred to hereinafter CSS) contact start-stop for the purpose of performance adopts the method. これに用いる薄膜ディスクには磁性膜が磁気ヘッドにより摩耗，損傷を防ぐ目的で炭素保護膜が形成されている。 Wear a magnetic film magnetic head in thin film disks used in this carbon protective film is formed in order to prevent damage.
上述した従来の炭素保護膜は自己潤滑効果により磁性膜の損傷を防いでいる。 Conventional carbon protective film described above is to prevent damage to the magnetic film by a self-lubricating effect. しかし、CSS回数が多くなると、 However, if the CSS number of times increases,
炭素保護膜が摩耗し、ヘッドスライダーに摩耗粉が付着し、ヘッドの浮上量が大きくなる欠点がある。 Worn carbon protective film, adhered abrasion powder on the head slider, there is a disadvantage that the flying height of the head becomes large. ヘッドの浮上量が大きくなると再生出力および分解能が悪化し、 A reproduction output and resolution flying height of the head becomes large to deteriorate,
記録情報が読出せなくなる。 Recorded information is not put out read.
本発明は前記問題点を解消し、ヘッドスライダーに摩耗粉が付着するのを防止した磁気記録媒体を提供するものである。 The present invention provides a magnetic recording medium which prevent to solve the above problems, abrasion powder on the head slider is attached.
上記目的を達成するため、本発明による磁気記録媒体においては、磁気記録層の表面に保護膜を有し、保護膜上に潤滑剤を塗布した磁気記録媒体であって、 保護膜は、炭素保護膜であり、 潤滑剤は、主鎖の両側に、CH 2 OH の官能基を有する HOC To achieve the above object, the magnetic recording medium according to the present invention, a protective film on the surface of the magnetic recording layer, a magnetic recording medium coated with the lubricant on the protective film, the protective film, a carbon protective a film, the lubricant, the both sides of the main chain, HOC having a functional group CH 2 OH
H 2 −CF 2 O−(C 2 F 4 O) P −(CF 2 O) q −CH 2 OHの構造をもつパーフロロアルキルポリエーテルである。 H 2 -CF 2 O- (C 2 F 4 O) P - a perfluoroalkyl polyether having (CF 2 O) q structure of -CH 2 OH.
次に本発明の実施例について図面を参照して説明する。 Next, Embodiment of the present invention will be described with reference to the drawings.
第１図は本発明の一実施例の縦断面図である。 Figure 1 is a longitudinal sectional view of one embodiment of the present invention. 基板１の上にめっき法およびスパッタ法によりCo系磁性合金膜２ Co system by plating and sputtering on the substrate 1 magnetic alloy film 2
を形成する。 To form. その上に炭素保護膜３をスパッタ法により形成する。 Carbon protective film 3 is formed thereon by sputtering. 次に潤滑剤４としてフロン系溶剤に溶したHO HO then was soluble in Freon-based solvent as a lubricant 4
CH 2 −CF 2 O−(C 2 F 4 O) p −(CF 2 O) q −C 2 OHのパーフロロアルキルポリエーテルを塗布し、膜厚が約10Å程度になるようにする。 CH 2 -CF 2 O- (C 2 F 4 O) p - (CF 2 O) was applied to q -C 2 OH perfluoroalkyl polyethers, so that film thickness of about 10 Å.
以上のように作製した磁気ディスク媒体をMnZnフェライトのウェンチェスターヘッドを使用し、摩擦係数を測定した。 A magnetic disk medium produced as described above using Wen Chester head MnZn ferrite, the friction coefficient was measured. 第２図に従来の炭素保護膜のみの媒体と本発明の媒体の平均動摩擦係数と静摩擦係数を示す。 Shows the average dynamic friction coefficient and static friction coefficient of conventional media media and the present invention carbon protective film only in Figure 2.
本発明の媒体の摩擦係数は小さいことがわかる。 Friction coefficient of the medium of the present invention it can be seen that small. 次にCS Then CS
S耐久性試験を行った。 It was S durability test. 従来の媒体では100回のCSS回数においてヘッドスライダーに炭素摩耗粉が付着するが、 In the conventional medium adhering carbon abrasion powder on the head slider in 100 times of CSS times but,
本発明の媒体は30000回のCSS回数においてもスライダーに炭素摩耗粉は付着しないことがわかった。 Medium of the present invention is carbon abrasion powder in the slider in the 30000 times of CSS times was found not to adhere.
以上説明したように本発明は炭素保護膜の上に、潤滑剤として特に主鎖の両側にCH 2 OHの官能基を有するHOCH 2 -C On the present invention is a carbon protective film as described above, HOCH 2 -C especially having a functional group CH 2 OH on both sides of the main chain as a lubricant
F 2 O−(C 2 F 4 O) p −(CF 2 O) q −CH 2 OHのパーフロロアルキルポリエーテルを選定し、これを炭素保護膜上に塗布することにより、炭素保護膜の摩耗粉を無くすことができる効果がある。 F 2 O- (C 2 F 4 O) p - (CF 2 O) selects a perfluoroalkyl polyether of q -CH 2 OH, by which the coating on the carbon protective film, the wear of the carbon protective film there is an effect that can be eliminated flour.
第１図は本発明の磁気ディスク媒体の縦断面図、 第２図は従来の磁気ディスク媒体と本発明の磁気ディスク媒体の平均動摩擦係数と静摩擦係数とを示す試験結果を示す図である。 Longitudinal sectional view of a magnetic disk medium in Figure 1 the present invention, FIG. 2 is a diagram illustrating test results showing the average dynamic friction coefficient and static friction coefficient of the magnetic disk medium of the present invention and a conventional magnetic disk media. １……基板、２……磁気記録膜(Co 系磁性合金膜)、３ 1 ...... substrate, 2 ...... magnetic recording film (Co-based magnetic alloy film), 3
……炭素保護膜、４……HOCH 2 −CF 2 O−(C 2 F 4 O) p −(CF ...... carbon protective film, 4 ...... HOCH 2 -CF 2 O- (C 2 F 4 O) p - (CF
2 O) q −CH 2 OHの潤滑剤。 Lubricant 2 O) q -CH 2 OH.
Claims (1)
- 【請求項１】磁気記録層の表面に保護膜を有し、保護膜上に潤滑剤を塗布した磁気記録媒体であって、 保護膜は、炭素保護膜であり、 潤滑剤は、主鎖の両側に、CH 2 OH の官能基を有する HOC [Claim 1 further comprising a protective film on the surface of the magnetic recording layer, a magnetic recording medium coated with the lubricant on the protective film, the protective film is a carbon protective film, the lubricant, the main chain on both sides, HOC having a functional group CH 2 OH
H 2 −CF 2 O−(C 2 F 4 O) P −(CF 2 O) q −CH 2 OHの構造をもつパーフロロアルキルポリエーテルであることを特徴とする磁気記録媒体。 H 2 -CF 2 O- (C 2 F 4 O) P - (CF 2 O) a magnetic recording medium, characterized in that q is perfluoroalkyl polyether having the structure -CH 2 OH.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60207661A JPH0646441B2 (en) | 1985-09-19 | 1985-09-19 | Magnetic recording media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60207661A JPH0646441B2 (en) | 1985-09-19 | 1985-09-19 | Magnetic recording media |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6266417A JPS6266417A (en) | 1987-03-25 |
| JPH0646441B2 true JPH0646441B2 (en) | 1994-06-15 |
Family
ID=16543461
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60207661A Expired - Lifetime JPH0646441B2 (en) | 1985-09-19 | 1985-09-19 | Magnetic recording media |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0646441B2 (en) |
Families Citing this family (22)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0320241A3 (en) * | 1987-12-07 | 1991-12-11 | Hitachi Maxell Ltd. | Magnetic recording medium and process for preparing the same |
| SG130014A1 (en) | 2002-09-03 | 2007-03-20 | Hoya Corp | Magnetic recording disk and process for manufacturing thereof |
| JP2004319058A (en) | 2003-03-31 | 2004-11-11 | Hoya Corp | Magnetic disk manufacturing method and magnetic disk |
| US8012920B2 (en) | 2004-01-14 | 2011-09-06 | Wd Media (Singapore) Pte. Ltd. | Lubricant for magnetic disks, method for producing the lubricant used in the magnetic disks, and method for manufacturing the same |
| JP4375617B2 (en) | 2004-09-27 | 2009-12-02 | Ｈｏｙａ株式会社 | Magnetic disk lubricant manufacturing method, magnetic disk lubricant, magnetic disk, and magnetic disk manufacturing method |
| JP4654339B2 (en) | 2006-01-23 | 2011-03-16 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Magnetic disk |
| WO2007116812A1 (en) | 2006-03-29 | 2007-10-18 | Hoya Corporation | Magnetic disc and method for manufacturing same |
| JP5483050B2 (en) | 2006-09-29 | 2014-05-07 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Lubricant for magnetic disk, method for producing the same, and magnetic disk |
| JP5134413B2 (en) | 2008-03-30 | 2013-01-30 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Magnetic disk and manufacturing method thereof |
| US9245568B2 (en) | 2008-03-30 | 2016-01-26 | Wd Media (Singapore) Pte. Ltd. | Magnetic disk and method of manufacturing the same |
| JP5453666B2 (en) | 2008-03-30 | 2014-03-26 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Magnetic disk and manufacturing method thereof |
| US9177586B2 (en) | 2008-09-30 | 2015-11-03 | WD Media (Singapore), LLC | Magnetic disk and manufacturing method thereof |
| JP5631604B2 (en) | 2009-02-19 | 2014-11-26 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Manufacturing method of magnetic disk |
| JP2010250929A (en) | 2009-03-27 | 2010-11-04 | Wd Media Singapore Pte Ltd | Lubricant compound for magnetic disk, magnetic disk, and method of manufacturing the same |
| JP5835874B2 (en) | 2010-06-22 | 2015-12-24 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Manufacturing method of magnetic disk |
| JP5743438B2 (en) | 2010-06-22 | 2015-07-01 | ダブリュディ・メディア・シンガポール・プライベートリミテッド | Lubricant for magnetic disk, magnetic disk and manufacturing method thereof |
| JP5600202B1 (en) | 2013-12-05 | 2014-10-01 | 昭和電工株式会社 | Lubricant for magnetic recording medium, magnetic recording medium, method for manufacturing magnetic recording medium, and magnetic recording / reproducing apparatus |
| JP5600222B1 (en) | 2014-01-16 | 2014-10-01 | 昭和電工株式会社 | Lubricant for magnetic recording medium, magnetic recording medium, method for manufacturing magnetic recording medium, and magnetic recording / reproducing apparatus |
| US10199064B2 (en) | 2015-02-18 | 2019-02-05 | Showa Denko K.K. | Magnetic recording medium, and magnetic recording and reproducing apparatus |
| CN106340313A (en) | 2015-07-08 | 2017-01-18 | 昭和电工株式会社 | Magnetic recording medium and a magnetic recording reproducing apparatus |
| CN106548791B (en) | 2015-09-18 | 2019-04-09 | 昭和电工株式会社 | Magnetic recording media and magnetic recorder/reproducer |
| JP2018076404A (en) | 2016-11-07 | 2018-05-17 | 昭和電工株式会社 | Organofluorine compound and lubricant |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0572727B2 (en) * | 1982-09-30 | 1993-10-12 | Nippon Electric Co |
-
1985
- 1985-09-19 JP JP60207661A patent/JPH0646441B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6266417A (en) | 1987-03-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |