JPS6266417A - 磁気記録媒体 - Google Patents

磁気記録媒体

Info

Publication number
JPS6266417A
JPS6266417A JP20766185A JP20766185A JPS6266417A JP S6266417 A JPS6266417 A JP S6266417A JP 20766185 A JP20766185 A JP 20766185A JP 20766185 A JP20766185 A JP 20766185A JP S6266417 A JPS6266417 A JP S6266417A
Authority
JP
Japan
Prior art keywords
protective film
carbon protective
magnetic recording
cf2o
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.)
Granted
Application number
JP20766185A
Other languages
English (en)
Other versions
JPH0646441B2 (ja
Inventor
Nobuyuki Hirata
平田　信之
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.)
NEC Corp
Original Assignee
NEC Corp
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 NEC Corp filed Critical NEC Corp
Priority to JP60207661A priority Critical patent/JPH0646441B2/ja
Publication of JPS6266417A publication Critical patent/JPS6266417A/ja
Publication of JPH0646441B2 publication Critical patent/JPH0646441B2/ja
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Landscapes

  • Lubricants (AREA)
  • Paints Or Removers (AREA)
  • Magnetic Record Carriers (AREA)

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。

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。
〔従来の技術〕
従来、計算機の外部記憶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Ｃ８Ｓと言う）方式を採用している。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。
〔発明が解決しようとする問題点〕
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。しかし、Ｃ８Ｓ回数が多くなると
、炭素保護膜が摩耗し、ヘッドスライダ−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。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
、記録情報が読出せなくなる。
本発明は前記問題点を解消し、ヘッドスライダ−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。
〔問題点を解決するための手段〕
本発明の磁気記録媒体は主鎖の両側にＣＨ２ＯＨの官能
基を有するＨＯＣＨ２−ＣＦ２Ｏ−（０２Ｆ４Ｏ）ｐ−
（ＣＦ２Ｏ）。
−ＣＨ２ＯＨの構造ヲモつツク−フロロアルキルポリエ
ーテルの潤滑剤を磁気記録層の炭素保護膜上に塗布した
ことを特徴とするものである。
〔実施例〕
次に本発明の実施例について図面を参照して説明する。
第１図は本発明の一実施例の縦断面図である。
基板ｌ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を形成する。その上に炭素保護膜３をスパッ
タ法により形成する。次にフロン系溶剤に溶したＨＯＣ
Ｈ２−ＣＦ２Ｏ−（Ｃ２Ｆ４Ｏ）ｐ−（ＣＦ２Ｏ）、−
ＣＨ２ＯＨツバ−フロロアルキルポリエーテルを塗布し
、膜厚が約１０Ｘ程度になるようにする。
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。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。
本発明の媒体の摩擦係数は小さいことがわかる。
次にＣＳＳ耐久性試験を行った。従来の媒体では１００
回のＣ８Ｓ回数においてヘッドスライダ−に炭素摩耗粉
が付着するが、本発明の媒体は３００００回のＣ８Ｓ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。
〔発明の効果〕
以上説明したように本発明は炭素保護膜の上に、主鎖の
両側にＣＨ２ＯＨの官能基を有するＨｏｃＨ２−ＣＦ２
゜−（Ｃ２Ｆ４Ｏ）ｐ　−（ＣＦ２Ｏ）、−Ｃ■１２Ｏ
Ｈ（７）バー　７００−ｙ　ｋキルポリエーテルの潤滑
剤を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。
【図面の簡単な説明】
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。 １・・・基板、２・・・磁気記録膜（Ｃｏ系磁性合金膜
）、３・・・炭素保護膜、４−ＨＯＣＨ２−ＣＦ２Ｏ−
（Ｃ２Ｆ’４０）ｐ−（ＣＦ２Ｏ）９−ＣＨ２ＯＨの潤
滑剤。

Claims (1)

    【特許請求の範囲】
  1. （１）磁気記録層の表面に耐久性を向上させる炭素保護
    膜を形成した磁気記録媒体において、主鎖の両側に、Ｃ
    Ｈ＿２ＯＨの官能基を有するＨＯＣＨ＿２−ＣＦ＿２Ｏ
    −（Ｃ＿２Ｆ＿４Ｏ）＿ｐ−（ＣＦ＿２Ｏ）＿ｑ−ＣＨ
    ＿２ＯＨの構造をもつパーフロロアルキルポリエーテル
    の潤滑剤を前記炭素保護膜上に塗布したことを特徴とす
    る磁気記録媒体。
JP60207661A 1985-09-19 1985-09-19 磁気記録媒体 Expired - Lifetime JPH0646441B2 (ja)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP60207661A JPH0646441B2 (ja) 1985-09-19 1985-09-19 磁気記録媒体

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP60207661A JPH0646441B2 (ja) 1985-09-19 1985-09-19 磁気記録媒体

Publications (2)

Publication Number Publication Date
JPS6266417A true JPS6266417A (ja) 1987-03-25
JPH0646441B2 JPH0646441B2 (ja) 1994-06-15

Family

ID=16543461

Family Applications (1)

Application Number Title Priority Date Filing Date
JP60207661A Expired - Lifetime JPH0646441B2 (ja) 1985-09-19 1985-09-19 磁気記録媒体

Country Status (1)

Country Link
JP (1) JPH0646441B2 (ja)

Cited By (24)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320241A2 (en) * 1987-12-07 1989-06-14 Hitachi Maxell Ltd. Magnetic recording medium and process for preparing the same
US7105241B2 (en) 2003-03-31 2006-09-12 Hoya Corporation Magnetic disk and method of manufacturing same
US7252897B2 (en) 2002-09-03 2007-08-07 Hoya Corporation Magnetic recording disk and process for manufacture thereof
US7531485B2 (en) 2004-09-27 2009-05-12 Hoya Corporation Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic disk
US7833641B2 (en) 2006-01-23 2010-11-16 Wd Media (Singapore) Pte. Ltd. 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
US8178480B2 (en) 2006-09-29 2012-05-15 Wd Media (Singapore) Pte. Ltd. Lubricant for magnetic disk, process for producing the same, and magnetic disk
US8257783B2 (en) 2006-03-29 2012-09-04 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US8492011B2 (en) 2009-03-27 2013-07-23 WD Media (Singapore) Pte, Ltd. Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same
US8697262B2 (en) 2010-06-22 2014-04-15 Wd Media (Singapore) Pte. Ltd. Lubricant for magnetic disc, magnetic disc and method of producing the same
US8846137B2 (en) 2009-02-19 2014-09-30 Wd Media (Singapore) Pte. Ltd. Method of manufacturing a magnetic disk
US8920872B2 (en) 2010-06-22 2014-12-30 Wd Media (Singapore) Pte. Ltd. Method of producing a magnetic recording disc
US8999533B2 (en) 2008-03-30 2015-04-07 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US9005782B2 (en) 2008-03-30 2015-04-14 WD Media, LLC Magnetic disk and method of manufacturing the same
US9245568B2 (en) 2008-03-30 2016-01-26 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US9349403B2 (en) 2014-01-16 2016-05-24 Showa Denko K.K. Lubricant for magnetic recording medium, magnetic recording medium, manufacturing method of magnetic recording medium, and magnetic recording and reproducing device
US9672857B2 (en) 2013-12-05 2017-06-06 Showa Denko K.K. Lubricant for magnetic recording medium, magnetic recording medium, manufacturing method of magnetic recording medium, and magnetic recording and reproducing device
US9984715B2 (en) 2008-09-30 2018-05-29 WD Media, LLC Magnetic disk and manufacturing method thereof
US10074396B2 (en) 2015-09-18 2018-09-11 Showa Denko K.K. Magnetic recording medium and magnetic recording and reproducing apparatus
US10079036B2 (en) 2015-07-08 2018-09-18 Showa Denko K.K. Magnetic recording medium and magnetic recording and reproducing apparatus
US10199064B2 (en) 2015-02-18 2019-02-05 Showa Denko K.K. Magnetic recording medium, and magnetic recording and reproducing apparatus
US10246553B2 (en) 2016-11-07 2019-04-02 Showa Denko K.K. Organic fluorine compound and lubricant
US10559320B2 (en) 2014-12-19 2020-02-11 Showa Denko K.K. Magnetic recording medium and magnetic recording/reproducing apparatus
US11525032B2 (en) 2017-06-30 2022-12-13 Showa Denko K.K. Organic fluorine compound, lubricant, and processing method of magnetic recording medium

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961106A (ja) * 1982-09-30 1984-04-07 Nec Corp 磁気記憶体

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5961106A (ja) * 1982-09-30 1984-04-07 Nec Corp 磁気記憶体

Cited By (26)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0320241A2 (en) * 1987-12-07 1989-06-14 Hitachi Maxell Ltd. Magnetic recording medium and process for preparing the same
US7252897B2 (en) 2002-09-03 2007-08-07 Hoya Corporation Magnetic recording disk and process for manufacture thereof
US7277254B2 (en) 2002-09-03 2007-10-02 Hoya Corporation Magnetic recording disk and process for manufacture thereof
US7105241B2 (en) 2003-03-31 2006-09-12 Hoya Corporation Magnetic disk and method of manufacturing same
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
US7531485B2 (en) 2004-09-27 2009-05-12 Hoya Corporation Method of producing a lubricant for a magnetic disk, lubricant for a magnetic disk, magnetic disk, and method of producing a magnetic disk
US7833641B2 (en) 2006-01-23 2010-11-16 Wd Media (Singapore) Pte. Ltd. Magnetic disk
US8257783B2 (en) 2006-03-29 2012-09-04 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US8178480B2 (en) 2006-09-29 2012-05-15 Wd Media (Singapore) Pte. Ltd. Lubricant for magnetic disk, process for producing the same, and magnetic disk
US8999533B2 (en) 2008-03-30 2015-04-07 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US9245568B2 (en) 2008-03-30 2016-01-26 Wd Media (Singapore) Pte. Ltd. Magnetic disk and method of manufacturing the same
US9005782B2 (en) 2008-03-30 2015-04-14 WD Media, LLC Magnetic disk and method of manufacturing the same
US9984715B2 (en) 2008-09-30 2018-05-29 WD Media, LLC Magnetic disk and manufacturing method thereof
US8846137B2 (en) 2009-02-19 2014-09-30 Wd Media (Singapore) Pte. Ltd. Method of manufacturing a magnetic disk
US8492011B2 (en) 2009-03-27 2013-07-23 WD Media (Singapore) Pte, Ltd. Lubricant compound for a magnetic disk, magnetic disk, and method of manufacturing the same
US8697262B2 (en) 2010-06-22 2014-04-15 Wd Media (Singapore) Pte. Ltd. Lubricant for magnetic disc, magnetic disc and method of producing the same
US8920872B2 (en) 2010-06-22 2014-12-30 Wd Media (Singapore) Pte. Ltd. Method of producing a magnetic recording disc
US9672857B2 (en) 2013-12-05 2017-06-06 Showa Denko K.K. Lubricant for magnetic recording medium, magnetic recording medium, manufacturing method of magnetic recording medium, and magnetic recording and reproducing device
US9349403B2 (en) 2014-01-16 2016-05-24 Showa Denko K.K. Lubricant for magnetic recording medium, magnetic recording medium, manufacturing method of magnetic recording medium, and magnetic recording and reproducing device
US10559320B2 (en) 2014-12-19 2020-02-11 Showa Denko K.K. 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
US10079036B2 (en) 2015-07-08 2018-09-18 Showa Denko K.K. Magnetic recording medium and magnetic recording and reproducing apparatus
US10074396B2 (en) 2015-09-18 2018-09-11 Showa Denko K.K. Magnetic recording medium and magnetic recording and reproducing apparatus
US10246553B2 (en) 2016-11-07 2019-04-02 Showa Denko K.K. Organic fluorine compound and lubricant
US11525032B2 (en) 2017-06-30 2022-12-13 Showa Denko K.K. Organic fluorine compound, lubricant, and processing method of magnetic recording medium
US11820862B2 (en) 2017-06-30 2023-11-21 Resonac Corporation Organic fluorine compound, lubricant, and processing method of magnetic recording medium

Also Published As

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