JPH0646441B2 - Magnetic recording media - Google Patents

Magnetic recording media

Info

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
Application number
JP60207661A
Other languages
Japanese (ja)
Other versions
JPS6266417A (en
Inventor
信之 平田
Original Assignee
日本電気株式会社
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 日本電気株式会社 filed Critical 日本電気株式会社
Priority to JP60207661A priority Critical patent/JPH0646441B2/en
Publication of JPS6266417A publication Critical patent/JPS6266417A/en
Publication of JPH0646441B2 publication Critical patent/JPH0646441B2/en
Anticipated expiration legal-status Critical
Application status is Expired - Lifetime legal-status Critical

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.

〔従来の技術〕 [Prior art]

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.

〔発明が解決しようとする問題点〕 [Problems to be Solved by the Invention]

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.

〔問題点を解決するための手段〕 [Means for Solving the Problems]

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.

〔実施例〕 〔Example〕

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.

〔発明の効果〕 〔Effect of the invention〕

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.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

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)

    【特許請求の範囲】 [The 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.
JP60207661A 1985-09-19 1985-09-19 Magnetic recording media Expired - Lifetime JPH0646441B2 (en)

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)

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JP (1) JPH0646441B2 (en)

Families Citing this family (22)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0572727B2 (en) * 1982-09-30 1993-10-12 Nippon Electric Co

Also Published As

Publication number Publication date
JPS6266417A (en) 1987-03-25

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