JPS63144405A - Magnetic recording medium - Google Patents
Magnetic recording mediumInfo
- Publication number
- JPS63144405A JPS63144405A JP29062186A JP29062186A JPS63144405A JP S63144405 A JPS63144405 A JP S63144405A JP 29062186 A JP29062186 A JP 29062186A JP 29062186 A JP29062186 A JP 29062186A JP S63144405 A JPS63144405 A JP S63144405A
- Authority
- JP
- Japan
- Prior art keywords
- magnetic recording
- denotes
- durability
- acid amide
- hydrocarbon group
- 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
- 230000005291 magnetic effect Effects 0.000 title claims abstract description 38
- 229910052751 metal Inorganic materials 0.000 claims abstract description 31
- 239000002184 metal Substances 0.000 claims abstract description 31
- 230000005294 ferromagnetic effect Effects 0.000 claims abstract description 14
- 125000001183 hydrocarbyl group Chemical group 0.000 claims abstract description 8
- QGZKDVFQNNGYKY-UHFFFAOYSA-O ammonium group Chemical group [NH4+] QGZKDVFQNNGYKY-UHFFFAOYSA-O 0.000 claims abstract description 4
- 125000005010 perfluoroalkyl group Chemical group 0.000 claims abstract 2
- 239000010409 thin film Substances 0.000 claims description 23
- -1 acid amide compound Chemical class 0.000 claims description 18
- 125000004432 carbon atom Chemical group C* 0.000 claims description 8
- 239000000126 substance Substances 0.000 claims 1
- 238000000034 method Methods 0.000 abstract description 12
- 238000007747 plating Methods 0.000 abstract description 5
- 238000007740 vapor deposition Methods 0.000 abstract description 5
- 238000007772 electroless plating Methods 0.000 abstract description 4
- 238000009713 electroplating Methods 0.000 abstract description 4
- LSNNMFCWUKXFEE-UHFFFAOYSA-M Bisulfite Chemical compound OS([O-])=O LSNNMFCWUKXFEE-UHFFFAOYSA-M 0.000 abstract description 3
- 238000004544 sputter deposition Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 125000000816 ethylene group Chemical group [H]C([H])([*:1])C([H])([H])[*:2] 0.000 abstract 1
- 238000007733 ion plating Methods 0.000 abstract 1
- 239000010410 layer Substances 0.000 description 17
- 239000000314 lubricant Substances 0.000 description 12
- 239000010408 film Substances 0.000 description 9
- 230000001681 protective effect Effects 0.000 description 8
- 235000014113 dietary fatty acids Nutrition 0.000 description 6
- 239000000194 fatty acid Substances 0.000 description 6
- 229930195729 fatty acid Natural products 0.000 description 6
- 239000000463 material Substances 0.000 description 6
- 238000006243 chemical reaction Methods 0.000 description 5
- 150000004665 fatty acids Chemical class 0.000 description 5
- 150000001875 compounds Chemical class 0.000 description 4
- 239000000758 substrate Substances 0.000 description 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 3
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 3
- 125000000217 alkyl group Chemical group 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 3
- 150000002500 ions Chemical class 0.000 description 3
- 239000003960 organic solvent Substances 0.000 description 3
- 239000000843 powder Substances 0.000 description 3
- 239000011347 resin Substances 0.000 description 3
- 229920005989 resin Polymers 0.000 description 3
- 229910020676 Co—N Inorganic materials 0.000 description 2
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 2
- 229910019142 PO4 Inorganic materials 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 125000003342 alkenyl group Chemical group 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 229910052804 chromium Inorganic materials 0.000 description 2
- NVIVJPRCKQTWLY-UHFFFAOYSA-N cobalt nickel Chemical compound [Co][Ni][Co] NVIVJPRCKQTWLY-UHFFFAOYSA-N 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 230000006866 deterioration Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 150000002739 metals Chemical class 0.000 description 2
- 125000002496 methyl group Chemical group [H]C([H])([H])* 0.000 description 2
- 229910052759 nickel Inorganic materials 0.000 description 2
- 235000021317 phosphate Nutrition 0.000 description 2
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 2
- 229910052698 phosphorus Inorganic materials 0.000 description 2
- 229920003207 poly(ethylene-2,6-naphthalate) Polymers 0.000 description 2
- 239000011112 polyethylene naphthalate Substances 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000915 polyvinyl chloride Polymers 0.000 description 2
- 239000004800 polyvinyl chloride Substances 0.000 description 2
- 239000011241 protective layer Substances 0.000 description 2
- 229910052703 rhodium Inorganic materials 0.000 description 2
- 239000010935 stainless steel Substances 0.000 description 2
- 229910001220 stainless steel Inorganic materials 0.000 description 2
- 238000007738 vacuum evaporation Methods 0.000 description 2
- 239000012808 vapor phase Substances 0.000 description 2
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 1
- 229920002284 Cellulose triacetate Polymers 0.000 description 1
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910020632 Co Mn Inorganic materials 0.000 description 1
- 229910020630 Co Ni Inorganic materials 0.000 description 1
- 229910002440 Co–Ni Inorganic materials 0.000 description 1
- 229910020674 Co—B Inorganic materials 0.000 description 1
- 229910020678 Co—Mn Inorganic materials 0.000 description 1
- 229910020707 Co—Pt Inorganic materials 0.000 description 1
- 229910020514 Co—Y Inorganic materials 0.000 description 1
- 229910017061 Fe Co Inorganic materials 0.000 description 1
- DGAQECJNVWCQMB-PUAWFVPOSA-M Ilexoside XXIX Chemical compound C[C@@H]1CC[C@@]2(CC[C@@]3(C(=CC[C@H]4[C@]3(CC[C@@H]5[C@@]4(CC[C@@H](C5(C)C)OS(=O)(=O)[O-])C)C)[C@@H]2[C@]1(C)O)C)C(=O)O[C@H]6[C@@H]([C@H]([C@@H]([C@H](O6)CO)O)O)O.[Na+] DGAQECJNVWCQMB-PUAWFVPOSA-M 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910017709 Ni Co Inorganic materials 0.000 description 1
- 229910000990 Ni alloy Inorganic materials 0.000 description 1
- 229910003267 Ni-Co Inorganic materials 0.000 description 1
- 229910018054 Ni-Cu Inorganic materials 0.000 description 1
- 229910003262 Ni‐Co Inorganic materials 0.000 description 1
- 229910018481 Ni—Cu Inorganic materials 0.000 description 1
- 229910018605 Ni—Zn Inorganic materials 0.000 description 1
- 239000004952 Polyamide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004642 Polyimide Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ZLMJMSJWJFRBEC-UHFFFAOYSA-N Potassium Chemical compound [K] ZLMJMSJWJFRBEC-UHFFFAOYSA-N 0.000 description 1
- 235000010724 Wisteria floribunda Nutrition 0.000 description 1
- NNLVGZFZQQXQNW-ADJNRHBOSA-N [(2r,3r,4s,5r,6s)-4,5-diacetyloxy-3-[(2s,3r,4s,5r,6r)-3,4,5-triacetyloxy-6-(acetyloxymethyl)oxan-2-yl]oxy-6-[(2r,3r,4s,5r,6s)-4,5,6-triacetyloxy-2-(acetyloxymethyl)oxan-3-yl]oxyoxan-2-yl]methyl acetate Chemical compound O([C@@H]1O[C@@H]([C@H]([C@H](OC(C)=O)[C@H]1OC(C)=O)O[C@H]1[C@@H]([C@@H](OC(C)=O)[C@H](OC(C)=O)[C@@H](COC(C)=O)O1)OC(C)=O)COC(=O)C)[C@@H]1[C@@H](COC(C)=O)O[C@@H](OC(C)=O)[C@H](OC(C)=O)[C@H]1OC(C)=O NNLVGZFZQQXQNW-ADJNRHBOSA-N 0.000 description 1
- 238000005299 abrasion Methods 0.000 description 1
- 150000001338 aliphatic hydrocarbons Chemical class 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 239000000956 alloy Substances 0.000 description 1
- 239000010775 animal oil Substances 0.000 description 1
- 229910052785 arsenic Inorganic materials 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 239000011230 binding agent Substances 0.000 description 1
- 229910052797 bismuth Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229910017052 cobalt Inorganic materials 0.000 description 1
- 239000010941 cobalt Substances 0.000 description 1
- GUTLYIVDDKVIGB-UHFFFAOYSA-N cobalt atom Chemical compound [Co] GUTLYIVDDKVIGB-UHFFFAOYSA-N 0.000 description 1
- 238000003851 corona treatment Methods 0.000 description 1
- 239000007822 coupling agent Substances 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000005566 electron beam evaporation Methods 0.000 description 1
- 238000010894 electron beam technology Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 229910052733 gallium Inorganic materials 0.000 description 1
- 229910052737 gold Inorganic materials 0.000 description 1
- 229910002804 graphite Inorganic materials 0.000 description 1
- 239000010439 graphite Substances 0.000 description 1
- 229910052742 iron Inorganic materials 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- 229910052745 lead Inorganic materials 0.000 description 1
- 230000001050 lubricating effect Effects 0.000 description 1
- 238000005461 lubrication Methods 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 230000008018 melting Effects 0.000 description 1
- 238000002844 melting Methods 0.000 description 1
- 229910052753 mercury Inorganic materials 0.000 description 1
- 239000002480 mineral oil Substances 0.000 description 1
- 229910052750 molybdenum Inorganic materials 0.000 description 1
- CWQXQMHSOZUFJS-UHFFFAOYSA-N molybdenum disulfide Chemical compound S=[Mo]=S CWQXQMHSOZUFJS-UHFFFAOYSA-N 0.000 description 1
- 229910052982 molybdenum disulfide Inorganic materials 0.000 description 1
- 239000000178 monomer Substances 0.000 description 1
- 229910052758 niobium Inorganic materials 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 229910052762 osmium Inorganic materials 0.000 description 1
- 229910052760 oxygen Inorganic materials 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920005670 poly(ethylene-vinyl chloride) Polymers 0.000 description 1
- 229920002647 polyamide Polymers 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920001721 polyimide Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229910052700 potassium Inorganic materials 0.000 description 1
- 239000011591 potassium Substances 0.000 description 1
- 238000003825 pressing Methods 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052702 rhenium Inorganic materials 0.000 description 1
- 150000003839 salts Chemical class 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 238000001179 sorption measurement Methods 0.000 description 1
- 229910052712 strontium Inorganic materials 0.000 description 1
- 229910052717 sulfur Inorganic materials 0.000 description 1
- 239000004094 surface-active agent Substances 0.000 description 1
- BFKJFAAPBSQJPD-UHFFFAOYSA-N tetrafluoroethene Chemical group FC(F)=C(F)F BFKJFAAPBSQJPD-UHFFFAOYSA-N 0.000 description 1
- 229920001187 thermosetting polymer Polymers 0.000 description 1
- 229910052721 tungsten Inorganic materials 0.000 description 1
- ITRNXVSDJBHYNJ-UHFFFAOYSA-N tungsten disulfide Chemical compound S=[W]=S ITRNXVSDJBHYNJ-UHFFFAOYSA-N 0.000 description 1
- 238000001771 vacuum deposition Methods 0.000 description 1
- 235000015112 vegetable and seed oil Nutrition 0.000 description 1
- 239000008158 vegetable oil Substances 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
- 239000004711 α-olefin Substances 0.000 description 1
Landscapes
- Lubricants (AREA)
- Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は強磁性金属薄膜を磁気記録層として備えてなる
磁気記録媒体に関し、特に広範囲の温湿度条件において
走行性、耐摩耗性に優れ、とくに厳しい低湿度条件下で
のメチル耐久性の優れた金属薄膜型磁気記録媒体に関す
るものである。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a magnetic recording medium comprising a ferromagnetic metal thin film as a magnetic recording layer, and particularly has excellent runnability and wear resistance under a wide range of temperature and humidity conditions. This invention relates to a metal thin film type magnetic recording medium that has excellent methyl durability especially under severe low humidity conditions.
従来より磁気記録媒体としては、非磁性支持体上に強磁
性金属粉末の磁性材料を有機バインダー中に分散せしめ
たものを塗布し乾燥させる塗布型のものが広く使用され
てきている。近年高密度記録への要求の高まりと共に真
空蒸着、スパッタリング、イオンブレーティング等のペ
ーパーデポジション法あるいは電気メツキ法、無電解メ
ッキ等のメッキ法により形成される強磁性金属薄膜を磁
気記録層とするいわゆる金属薄膜型磁気記録媒体が、注
目をあびており実用化への努力が種々おこなわれている
。Conventionally, as magnetic recording media, coating type media have been widely used, in which a magnetic material such as ferromagnetic metal powder dispersed in an organic binder is coated on a non-magnetic support and dried. In recent years, with the increasing demand for high-density recording, magnetic recording layers are made of ferromagnetic metal thin films formed by paper deposition methods such as vacuum evaporation, sputtering, and ion blating, or plating methods such as electroplating and electroless plating. So-called metal thin film magnetic recording media are attracting attention, and various efforts are being made to put them into practical use.
高密度記録用の磁気記録媒体に要求される条件よりも一
桁小さい薄型化が容易で、飽和磁束密度も大きい金属薄
膜型磁気記録への期待は大きい。There are great expectations for metal thin film magnetic recording, which can easily be made thinner by an order of magnitude smaller than the requirements for magnetic recording media for high-density recording, and has a high saturation magnetic flux density.
特に真空蒸着による方法はメッキの場合のような廃液処
理を必要とせず製造工程も簡単で膜の析出速度も太き（
できるため非常にメリットが大きい。真空蒸着によって
磁気記録媒体に望ましい抗磁力および角型性を有する磁
性膜を製造する方法としては米国特許３３４２６３２号
、同３３４２６３３号等に述べられている斜め蒸着法が
知られている。In particular, the method using vacuum evaporation does not require waste liquid treatment as in the case of plating, the manufacturing process is simple, and the deposition rate of the film is fast (
This is a huge advantage because it can be done. As a method for producing a magnetic film having coercive force and squareness desirable for magnetic recording media by vacuum deposition, an oblique deposition method described in US Pat. Nos. 3,342,632 and 3,342,633 is known.
強磁性金属薄膜からなる磁気記録媒体にかかわる大きな
問題として耐候性、走行性、耐摩耗性がある。磁気記録
媒体は磁気信号の記録、再生および消去の過程において
磁気へツｒと高速相対運動のもとにおかれるが、その際
走行がスムーズにしかも安定に行われねばならないし、
同時にヘラｒと・の接触、摩耗もしくは破壊が起こって
はならない。Major issues concerning magnetic recording media made of ferromagnetic metal thin films include weather resistance, runnability, and abrasion resistance. In the process of recording, reproducing, and erasing magnetic signals, magnetic recording media are subjected to high-speed relative motion with magnetic disks, but during this time, the movement must be smooth and stable.
At the same time, contact, wear or destruction of the spatula r and the spatula must not occur.
以上のような背景から走行性、耐久性を向上させる方法
として潤滑層や保護層を設けることが横１性樹脂、熱硬
化性樹脂、脂肪酸、脂肪酸の金属塩、を有機溶剤に溶解
して塗布したものがある。（例えば特開昭６０−６９８
２４号公報、特開昭６０−８５４２７号公報参照）
〔発明が解決しようとする問題点〕
しかしながらこうして得られた金属薄膜型磁気記録媒体
は高温高湿あるいは低温等の苛酷条件で摩擦係数が上昇
したり耐摩耗性が不十分であったりするほか、低湿度条
件でスチル耐久性が劣ることが大きな問題であった。ま
た保護・潤滑層の厚みによるヘッド−テープ間のスペー
シング損失のため電磁変換特性が劣化するなどの問題が
あり、金属薄膜型磁気記録の実用化に際しなお改良が望
まれている。From the above background, one way to improve running performance and durability is to provide a lubricating layer or a protective layer by dissolving a lateral monomer resin, thermosetting resin, fatty acid, or fatty acid metal salt in an organic solvent and applying it. There is something I did. (For example, JP-A-60-698
(Refer to Publication No. 24 and Japanese Unexamined Patent Publication No. 60-85427) [Problems to be solved by the invention] However, in the metal thin film magnetic recording medium thus obtained, the coefficient of friction increases under harsh conditions such as high temperature, high humidity, or low temperature. Other major problems include poor still durability under low humidity conditions. Furthermore, there are problems such as deterioration of electromagnetic conversion characteristics due to spacing loss between the head and the tape due to the thickness of the protective/lubricant layer, and improvements are still desired when metal thin film magnetic recording is put into practical use.
本発明の目的は、広範囲の温湿度条件において走行性、
耐摩耗性、電磁変換特性にすぐれた金属薄膜型磁気記録
媒体を提供することにある。The purpose of the present invention is to improve running performance under a wide range of temperature and humidity conditions.
The object of the present invention is to provide a metal thin film magnetic recording medium with excellent wear resistance and electromagnetic conversion characteristics.
本発明者らは金属薄膜型磁気記録媒体について鋭意検討
した結果、非磁性支持体上に磁気記録層として設けられ
た強磁性金属薄膜の表面上に前記一般式（Ｉ）で表わさ
れるパーフルオロアルカンスルホン酸アミド化合物を含
む層を形成してなる磁気記録媒体においては、広範な温
湿度条件において磁気ヘッド、ガイドボール等の部材に
対する耐摩耗性が著しく向上するとともに、走行系部材
に対する摩擦係数が低減され、また低湿度でのスチル耐
久性が太き（向上することを見出し、本発明をなすに至
ったものである。すなわち本発明の上記の目的は、支持
体上に電気メッキ、無電解メッキ、気相メッキ、スパッ
タリング、蒸着、イオンブレーティング等の方法により
形成された強磁性金属薄膜の表面に、下記一般式（Ｉ）
で表わされるパーフルオロアルカンスルホン酸アミド化
合物を含む層を設けることにより達成される。As a result of intensive studies on metal thin film type magnetic recording media, the present inventors found that perfluoroalkane represented by the general formula (I) is In magnetic recording media formed with a layer containing a sulfonic acid amide compound, the wear resistance of magnetic heads, guide balls, and other components is significantly improved under a wide range of temperature and humidity conditions, and the coefficient of friction with respect to running system components is reduced. In addition, the present invention has been made based on the discovery that the still durability at low humidity is increased (improved).In other words, the above object of the present invention is to provide electroplating or electroless plating on a support. The following general formula (I) is applied to the surface of a ferromagnetic metal thin film formed by a method such as vapor phase plating, sputtering, vapor deposition, or ion blating.
This is achieved by providing a layer containing a perfluoroalkanesulfonic acid amide compound represented by:
ここで、
Ｒｆ：炭素数６〜１０の／ぞ−フルオロアルキル基Ｒ□
：炭素数３〜１８の炭化水素基
Ｒ２：Ｈ
（ＣＨ２０Ｈ２０）、Ｈ，ｎ ： １〜２０の整数（Ｃ
Ｈ２）ｒｎＳ０３Ｍ１ｍ＝２〜４の整数Ｍ：Ｈ，金属、
金属上アンモニウ
ム類数１〜１８の炭化水素基
この中、 Ｒｆとしては炭素数７〜９のノミ−フルオ
ロアルキル基が好ましく、Ｒ１の炭化水素基としてはア
ルキル基、アルケニル基が好ましく、特にＲ□として炭
素数８〜１８のアルキル基が好ましい。Here, Rf: /zo-fluoroalkyl group R□ having 6 to 10 carbon atoms
: Hydrocarbon group having 3 to 18 carbon atoms R2: H (CH20H20), H,n: An integer of 1 to 20 (C
H2) rnS03M1m=integer M of 2 to 4: H, metal;
Hydrocarbon group having 1 to 18 metal ammonium groups Among these, Rf is preferably a chili-fluoroalkyl group having 7 to 9 carbon atoms, and the hydrocarbon group R1 is preferably an alkyl group or an alkenyl group, especially R□ An alkyl group having 8 to 18 carbon atoms is preferable.
馬としてＨも好ましいものの一つであり、（ＣＨ２ＣＨ
２０）ｎＨとしてはルが２〜１０のものが好ましく、（
ＣＨ２）ｍ８０３Ｍとしては扉が３のものが好ましく、
そのＭとしては金属の中、ナトリウム、カリウムが好ま
しく、アンモニウム類としてはＮＨ４゜Ｎ（Ｃ１３）Ｒ
３，Ｎ（ＣＨ３）２Ｈ２，Ｎ（ＣＨ３）５Ｈ、Ｎ（０Ｍ
３）、＋が好ましい。さらに、炭化水素基としてはアル
キル基、アルケニル基が好ましく、炭素数としては１〜
１８、特に８〜１８が好ましい。H is also one of the preferable horses, (CH2CH
20) As nH, those with le of 2 to 10 are preferable, and (
CH2) m803M is preferably one with 3 doors,
Among metals, sodium and potassium are preferable as M, and ammoniums include NH4゜N(C13)R.
3,N(CH3)2H2,N(CH3)5H,N(0M
3), + is preferred. Furthermore, as the hydrocarbon group, an alkyl group or an alkenyl group is preferable, and the number of carbon atoms is 1 to 1.
18, especially 8 to 18 is preferred.
前記一般式（Ｉ）で表わされるパーフルオロアルカンス
ルホン酸アミド化合物の具体例としては、（１１Ｃ１；
’３（ＣＦ２）７ＣＦ’２Ｓｏ□ＮＣＨ２（ＣＨ２）１
□ＣＨ３Ｅ
（６） ＣＦ３（ＣＦ’、）７ＣＦ２Ｓｏ２ＮＣＨ２
（ＣＨ２）１６ＣＨ３■
（９１Ｃ１”３（Ｃｋ’２）５にに’枦（Ｊ２１Ｎ −
Ｕ！２ＵＭ（Ｕ坦２〕、し貝。Specific examples of the perfluoroalkanesulfonic acid amide compound represented by the general formula (I) include (11C1;
'3(CF2)7CF'2So□NCH2(CH2)1
□CH3E (6) CF3(CF',)7CF2So2NCH2
(CH2) 16CH3■ (91C1"3 (Ck'2) 5 ni'枦 (J21N -
U! 2UM (Utan 2), Shikai.
等が挙げられる。etc.
本発明において磁性金属薄膜の表面に設ける保護・潤滑
層には上記の例示にあるパーフルオロアルカンスルホン
酸アミド化合物１種または２種以上のほか一般の潤滑剤
を混在させてもよい。In the present invention, the protective/lubricant layer provided on the surface of the magnetic metal thin film may contain a general lubricant in addition to one or more of the above-mentioned perfluoroalkanesulfonic acid amide compounds.
パーフルオロアルカンスルホン酸アミド９化合物のほか
に混入できる潤滑剤としては、脂肪酸、金属石鹸、脂肪
酸アミド、脂肪酸エステル、高級脂肪族アルコール、モ
ノアルキルフォスフェート、ジアルキルフォスフェート
、トリアルキル７オスフエート、ノ（ラフイン類、シリ
コーンオイル、動植物油、鉱油、高級脂肪族アミン；グ
ラファイト、シリカ、二硫化モリブデン、二硫化タング
ステン等の無機微粉末；ポリエチレン、ポリプロピレン
、ポリ塩化ビニル、エチレン−塩化ビニル共重合体、ポ
リテトラフルオロエチレン等の樹脂微粉末；αオレフイ
ン重合物；常温で液体の不飽和脂肪族炭化水素、フルオ
ロカーボン類等があげられる。In addition to the nine perfluoroalkanesulfonic acid amide compounds, lubricants that can be mixed include fatty acids, metal soaps, fatty acid amides, fatty acid esters, higher aliphatic alcohols, monoalkyl phosphates, dialkyl phosphates, trialkyl heptophosphates, and Rough-ins, silicone oils, animal and vegetable oils, mineral oils, higher aliphatic amines; inorganic fine powders such as graphite, silica, molybdenum disulfide, tungsten disulfide; polyethylene, polypropylene, polyvinyl chloride, ethylene-vinyl chloride copolymer, polyester Examples include fine resin powders such as tetrafluoroethylene; α-olefin polymers; unsaturated aliphatic hydrocarbons and fluorocarbons that are liquid at room temperature.
本発明において、表面保護・潤滑層を形成する方法とし
ては、材料を有機溶剤に溶解して基板（金属薄膜）にｉ
布あるいはＩ！Ｊｇしたのち乾燥する方法、材料を熔融
して基板に塗着させる方法、有機溶剤に材料を溶解した
溶液に基板を浸漬して材料を基板表面に吸着させる方法
、ラングミュア−プロジェット法などにより基板表面に
材料の単分子膜を形成する方法等が挙げられる。In the present invention, the method for forming the surface protection/lubrication layer is to dissolve the material in an organic solvent and apply it to the substrate (metal thin film).
Cloth or I! A method of drying after drying, a method of melting the material and applying it to the substrate, a method of immersing the substrate in a solution of the material in an organic solvent and adsorbing the material to the substrate surface, a method such as the Langmuir-Prodgett method, etc. Examples include a method of forming a monomolecular film of material on the surface.
本発明において設ける保護・潤滑層の厚み（ここでは厚
みを存在量によって表わすことにする）は、０．５ ”
ｉ／−〜１００７１ｋＶｍ”が好ましく、；芙好４七ニ
ーより好ましくは２■７−２〜２０’％’ｍ”である。The thickness of the protective/lubricant layer provided in the present invention (herein, the thickness is expressed by the amount present) is 0.5"
i/- to 10071 kVm'', more preferably 27-2 to 20'%'m''.
厚みが０．５ ｍｒ／ｍ” 以下だと均一な膜として
形成するのが困難であり、走行性、耐久性が十分でない
。If the thickness is less than 0.5 mr/m'', it is difficult to form a uniform film, and runnability and durability are insufficient.
また厚みが１ｏｏＴＩｖｒｒＬ”以上の場合は、ヘッド
−テープ間のスイーシング損失のため電磁変換特性が劣
化する問題がある。Further, if the thickness is 1ooTIvrrL" or more, there is a problem that the electromagnetic conversion characteristics deteriorate due to swiping loss between the head and the tape.
また本発明において、保護・潤滑層の下地金属薄膜との
密着を向上させるために、保護・潤滑剤を設ける前に下
地金属薄膜表面を脂肪酸などの界面活性剤や各梅カップ
リング剤で改質しておくこともできる。この保護・潤滑
層を設けるに先立って電子線、紫外線照射処理あるいは
コロナ放電処理等により支持体の表面吸着層の除去、表
面の改質を行うことも有効である。In addition, in the present invention, in order to improve the adhesion of the protective/lubricant layer with the base metal thin film, the surface of the base metal thin film is modified with a surfactant such as a fatty acid or each Ume coupling agent before the protective/lubricant is applied. You can also leave it as is. Prior to providing this protective/lubricant layer, it is also effective to remove the surface adsorption layer of the support and modify the surface by electron beam, ultraviolet irradiation treatment, corona discharge treatment, or the like.
保護・潤滑剤は１層でもよいし、複数の層からなってい
てもよい。上記したように、保護・潤滑層には本発明で
用いるパーフルオロアルカンスルホン酸アミド９化合物
と他の公知の有機潤滑剤とを併用することができるが、
そのさいの使用量の比は重量比で９０／１０〜１０／９
０であって、かなりの範・囲で変えることができる。The protective/lubricant may have one layer or may consist of multiple layers. As mentioned above, the 9 perfluoroalkanesulfonic acid amide compounds used in the present invention and other known organic lubricants can be used in combination in the protective/lubricant layer.
At that time, the ratio of the amount used is 90/10 to 10/9 by weight.
0 and can be varied within a considerable range.
゛強磁性金属薄膜の材料としては鉄、コバルト、ニッケ
ルその他の強磁性金属あるいはＦｅ−Ｃｏ。゛The material for the ferromagnetic metal thin film is iron, cobalt, nickel, other ferromagnetic metals, or Fe-Co.
Ｆｅ−Ｎｔ、 Ｃｏ−Ｎｉ、 Ｆｅ−Ｒｈ、 Ｃｏ−Ｐ
、 Ｃｏ−Ｂ、 Ｃｏ−Ｙ。Fe-Nt, Co-Ni, Fe-Rh, Co-P
, Co-B, Co-Y.
Ｃｏ−Ｌａ、 Ｃｏ−Ｃｅ、 Ｃｏ−Ｐｔ、 Ｃｏ−８
ｍ、 Ｃｏ−Ｍｎ、 Ｇｏ−Ｃｒ、 Ｆ’ｅ−Ｃｏ−Ｎ
ｉ、 Ｃｏ−Ｎ１−Ｐ、 Ｃｏ−Ｎ１−Ｂ、 Ｃｏ−Ｎ
ｉ−Ａｇ 、 Ｃｏ−Ｎｉ−Ｎｄ、 Ｃｏ−Ｎｉ−Ｃｏ
、 Ｃｏ−Ｎｉ−Ｚｎ、 Ｇｏ−Ｎｉ−Ｃｕ、 Ｇｏ−
Ｎｉ−Ｗ、 Ｃｏ−Ｎｉ−Ｒｅ等の強磁性合金を電気メ
ッキ、無電解メッキ、気相メッキ、スノツタリング、蒸
着、イオンブレーティング等の方法により形成せしめた
もので、その膜厚は磁気記録媒体として使用する場合０
，０２−２ Ａｍの範囲であり、特に０．０５−０．４
μ扉の範囲が望ましい。Co-La, Co-Ce, Co-Pt, Co-8
m, Co-Mn, Go-Cr, F'e-Co-N
i, Co-N1-P, Co-N1-B, Co-N
i-Ag, Co-Ni-Nd, Co-Ni-Co
, Co-Ni-Zn, Go-Ni-Cu, Go-
A ferromagnetic alloy such as Ni-W or Co-Ni-Re is formed by electroplating, electroless plating, vapor phase plating, snottering, vapor deposition, ion blating, etc., and the film thickness is the same as that of the magnetic recording medium. 0 when used as
,02-2 Am, especially 0.05-0.4
μ door range is preferable.
上記の強磁性金属薄膜は他にＯ，Ｎ、Ｃｒ、Ｇａ、Ａｓ
。The above ferromagnetic metal thin film is also made of O, N, Cr, Ga, As.
.
Ｓｒ、Ｚｒ、Ｎｂ、Ｍｏ、Ｒｈ、Ｐｉ、Ｓｎ、Ｓ’ｂ、
Ｔｏ、Ｐｍ、Ｒｅ、Ｏｓ。Sr, Zr, Nb, Mo, Rh, Pi, Sn, S'b,
To, Pm, Re, Os.
工ｒ、 Ａｕ、Ｈｇ、Ｐｂ、Ｂｉ等を含んでいてもよい
。It may contain metal, Au, Hg, Pb, Bi, etc.
上記の磁性層の表面形状は特に規定されないが、１０〜
１００ＯＡの高さの突起を有している場合特に走行性・
耐久性にすぐれる。The surface shape of the above magnetic layer is not particularly defined, but 10~
Especially when it has protrusions with a height of 100OA, the running performance and
Excellent durability.
支持体の厚さは４〜５０μｍが好ましい。また強磁性薄
膜の密着向上・磁気特性の改良の為に支持体上に下地層
を設けてもよい。The thickness of the support is preferably 4 to 50 μm. Further, an underlayer may be provided on the support in order to improve the adhesion and magnetic properties of the ferromagnetic thin film.
本発明に用いられる支持体としてはポリエチレンテレフ
タレート、ポリイミド、ポリアミド、ポリ塩化ビニル、
三酢酸セルロース、ポリカーボネ−）、ｙｔ？リエチレ
ンナフタレート、ホリフエニレンサル７アイドのような
プラスチックベース、又はＡＩ−、Ｔｉ、ステンレス鋼
などがもちいられる。Supports used in the present invention include polyethylene terephthalate, polyimide, polyamide, polyvinyl chloride,
Cellulose triacetate, polycarbonate), yt? Plastic bases such as polyethylene naphthalate, polyethylenenaphthalate, or AI-, Ti, stainless steel, etc. can be used.
磁気記録媒体の形状はテープ、シート、カード、ディス
ク等いずれでもよいが、特に好ましいのはテープ状、デ
ィスク状である。The magnetic recording medium may have any shape such as tape, sheet, card, or disk, but tape and disk shapes are particularly preferred.
次に実施例をもって本発明を具体的に説明するが、本発
明はこれらに限定されるものではない。EXAMPLES Next, the present invention will be specifically explained with reference to Examples, but the present invention is not limited thereto.
実施例
１３μｍ厚のポリエチレンテレフタレートフィルム上に
コバルト−ニッケル磁性膜（膜厚１５０ｒＬｒｎ）を斜
め蒸着し、磁気記録媒体の原反を調製した。Example 1 A cobalt-nickel magnetic film (thickness: 150 rLrn) was obliquely deposited on a polyethylene terephthalate film having a thickness of 3 μm to prepare a raw material for a magnetic recording medium.
蒸発源としては電子ビーム蒸発源を使用し、これにコバ
ルト−ニッケル合金（Ｃｏ：８０ｗｔ％、Ｎｉ：２０チ
）をチャージし真空度１３Ｘ１０ Ｐｏ 中で最低
入射角θｍｉｎが３５度となるように斜め蒸着を行った
。An electron beam evaporation source was used as the evaporation source, and it was charged with a cobalt-nickel alloy (Co: 80wt%, Ni: 20%) and tilted so that the minimum incident angle θmin was 35 degrees in a vacuum of 13 x 10 Po. Vapor deposition was performed.
蒸着中、θｍｉユ近傍及びθｍａｘ （＝ ９０６：最
高入射角）近傍より０２ガスをそれぞれ１５００ＣＣ／
分、１８００ＣＣ／分流し、蒸気流の一部と反応させて
金属薄膜の形成を行った。得られた磁気記録媒体の原反
の磁性金属薄膜上に下記各種化合物（ａ）〜（ｈ）をメ
チルエチルケトンに溶解して塗布、乾燥し調製したサン
プルを炸裂し試料屑１〜８とした（第１表）。During vapor deposition, 02 gas was applied at 1500 CC/1 from the vicinity of θmi and the vicinity of θmax (= 906: maximum incident angle).
A thin metal film was formed by reacting with a portion of the vapor flow at a rate of 1800 CC/min. The following various compounds (a) to (h) dissolved in methyl ethyl ketone were coated on the magnetic metal thin film of the obtained magnetic recording medium, and the samples prepared by drying were exploded to obtain sample scraps 1 to 8 (No. (Table 1).
得られた磁気テープの（Ａ）４０℃、７５嗟相対湿度お
よび（Ｂ）５℃、３０％相対湿度におけるステンレス棒
に対する摩擦係数、且ミリ型ＶＴＲでの繰り返し走行耐
久性ならびにスチル耐久性を調べたところ第１表のよう
になった。The friction coefficient of the obtained magnetic tape against a stainless steel rod at (A) 40°C, 75% relative humidity and (B) 5°C, 30% relative humidity, as well as repeated running durability and still durability on a mm-type VTR were investigated. It ended up looking like Table 1.
ここで繰り返し走行耐久性とは５０ｍ長のテープを８ミ
リ型ＶＴＲ（富士写真フィルム（久：ＦＵＪ工Ｘ −３
Ｎ５型）で繰り返し再生し走行不安定による画面の乱れ
や摩擦係数の上昇による走行の停止が起こるまでの再生
回数である。またスチル耐久性は、同型のＶＴＲ（ただ
しスチル再生時間を制限する機能を取り去っである）で
画像再生時にポーズボタンを押し、画像が出な（なるま
での時間を測定して評価した。Here, repeated running durability refers to the durability of a 50 m long tape to an 8 mm VTR (Fuji Photo Film Ltd.: FUJ Kogyo
This is the number of times the program can be played repeatedly on the N5 model until the screen becomes distorted due to unstable running or the running stops due to an increase in the coefficient of friction. Still durability was evaluated by pressing the pause button during image playback on a VTR of the same type (but without the function to limit still playback time) and measuring the time until no image appeared.
保護層使用化合物
（本発明）
（ａ） ＣＦ３（ＣＦ２）７ＣＦ２Ｓｏ□Ｎ（ＣＨ２
）、３ＣＨ３（比較例）
（ｆ）ＣＦ＋３（ＣＦ１２）７０Ｐ２ＣＯ○（ＣＨ２）
□７ＣＨ３（ぽ） ０＝Ｐ（−０（ＣＨ２）１．ＣＨ
３）３（ｈ） ＣＨ３（ＣＨ２）□６ＣＯＯ（ＣＨ２
）３ＣＨ３Ｉこりようにして前記一般式（Ｉ）で表わさ
れるパーフルオロアルカンスルホン酸アミド化合物ヲ含
ム層を表面に設けてなる金属薄膜型磁気記録媒体は高温
高湿および、低温低湿度の苛酷な条件下でも安定した走
行性・耐久性を実現していることがあきらかである。Compound used in protective layer (present invention) (a) CF3(CF2)7CF2So□N(CH2
), 3CH3 (comparative example) (f) CF+3 (CF12) 70P2CO○ (CH2)
□7CH3(Po) 0=P(-0(CH2)1.CH
3) 3(h) CH3(CH2)□6COO(CH2
)3CH3I Thus, a metal thin film type magnetic recording medium provided with a layer containing a perfluoroalkanesulfonic acid amide compound represented by the general formula (I) on the surface can withstand harsh conditions such as high temperature, high humidity, and low temperature and low humidity. It is clear that it has achieved stable running performance and durability even under various conditions.
強磁性金属薄膜上に前記一般式（Ｉ）で表わされる／署
−フルオロアルカンスルホン酸アミド化合物を含む層を
設けてなる本発明の金属薄膜型磁気記録媒体は、比較例
に示すような従来検討されてきた潤滑剤に比べ、摩擦係
数が小さく、くり返し走行耐久性が十分高く、またスチ
ル耐久性が優れ、しかもこれらは高温高湿及び低温低湿
の悪条件にお（・てその効果を奏するものであるから、
著しく優れた温湿度適応性、走行性、耐久性をもつもの
である。そして、特に低湿度条件でスチル耐久性が優れ
ている。さらに、本発明では前記化合物の塗布量が少な
くてもその効果をもつから、経済的であり、実用性が高
いほか、保獲・潤滑層の厚みが少ないことにより、ヘッ
ト９−テープ間のス被−シング損失による電磁変換特性
の劣化の問題を生じない。したがって、本発明は電磁変
換特性もすぐれている。The metal thin film type magnetic recording medium of the present invention, which has a layer containing a fluoroalkanesulfonic acid amide compound represented by the general formula (I) on a ferromagnetic metal thin film, has a structure similar to that of conventional studies as shown in the comparative example. Compared to conventional lubricants, the coefficient of friction is lower, the durability of repeated running is sufficiently high, and the durability of stills is excellent. Because it is,
It has outstanding temperature/humidity adaptability, runnability, and durability. It also has excellent still durability, especially under low humidity conditions. Furthermore, the present invention has the effect even if the amount of the compound applied is small, making it economical and highly practical. This eliminates the problem of deterioration of electromagnetic conversion characteristics due to sinking loss. Therefore, the present invention also has excellent electromagnetic conversion characteristics.
代理人 弁理士（８１０７）佐々木清隆（ほか３名）Agent: Patent attorney (8107) Kiyotaka Sasaki (and 3 others)
Claims (1)
般式（ I ）で表わされるパーフルオロアルカンスルホ
ン酸アミド化合物を含む層が設けられてなることを特徴
とする磁気記録媒体。 （ I ）▲数式、化学式、表等があります▼ ここで、Ｒｆ：炭素数６〜１０のパーフルオロアルキル
基 Ｒ＿１：炭素数３〜１８の炭化水素基 Ｒ＿２：Ｈ、（ＣＨ＿２ＣＨ＿２Ｏ）＿ｎＨ、（ＣＨ＿
２）＿ｍＳＯ＿３Ｍまたは炭素数１〜１８の炭化水素基
、 ｎは１〜２０の整数、 ｍは２〜４の整数、 ＭはＨ、金属またはアンモニウム類、[Claims] A layer containing a perfluoroalkanesulfonic acid amide compound represented by the following general formula (I) is provided on a ferromagnetic metal thin film provided on a non-magnetic support. magnetic recording medium. (I) ▲ Contains mathematical formulas, chemical formulas, tables, etc. ▼ Here, Rf: Perfluoroalkyl group with 6 to 10 carbon atoms R_1: Hydrocarbon group with 3 to 18 carbon atoms R_2: H, (CH_2CH_2O)_nH, (CH_
2)_mSO_3M or a hydrocarbon group having 1 to 18 carbon atoms, n is an integer of 1 to 20, m is an integer of 2 to 4, M is H, metal or ammonium,
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29062186A JPS63144405A (en) | 1986-12-08 | 1986-12-08 | Magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP29062186A JPS63144405A (en) | 1986-12-08 | 1986-12-08 | Magnetic recording medium |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS63144405A true JPS63144405A (en) | 1988-06-16 |
| JPH0582654B2 JPH0582654B2 (en) | 1993-11-19 |
Family
ID=17758361
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP29062186A Granted JPS63144405A (en) | 1986-12-08 | 1986-12-08 | Magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS63144405A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10158673A (en) * | 1996-12-03 | 1998-06-16 | Nippon Seiko Kk | Grease composition |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61248218A (en) * | 1985-04-25 | 1986-11-05 | Toray Ind Inc | Vertical magnetic recording medium |
-
1986
- 1986-12-08 JP JP29062186A patent/JPS63144405A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61248218A (en) * | 1985-04-25 | 1986-11-05 | Toray Ind Inc | Vertical magnetic recording medium |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10158673A (en) * | 1996-12-03 | 1998-06-16 | Nippon Seiko Kk | Grease composition |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0582654B2 (en) | 1993-11-19 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JP2680169B2 (en) | Magnetic recording media | |
| US5374480A (en) | Magnetic recording medium | |
| US5082714A (en) | Magnetic recording media | |
| JP2590482B2 (en) | Magnetic recording media | |
| JP2581090B2 (en) | Magnetic recording media | |
| JP2601339B2 (en) | Magnetic recording media | |
| JPS63144405A (en) | Magnetic recording medium | |
| JP2569689B2 (en) | Magnetic recording media | |
| JP2629725B2 (en) | Magnetic recording media | |
| JP2990682B2 (en) | Magnetic recording media | |
| JP3168613B2 (en) | Magnetic recording media | |
| JP2597227B2 (en) | Magnetic recording media | |
| US4725496A (en) | Magnetic recording medium | |
| US5326641A (en) | Magnetic recording medium comprising a ferromagnetic thin film and a protective layer of fluorine based resin | |
| JP2526545B2 (en) | Magnetic recording media | |
| JPH0971547A (en) | Lubricating material and magnetic recording medium using the same | |
| JPS62234225A (en) | Magnetic recording medium | |
| JPS63183607A (en) | Magnetic recording medium | |
| JPH0758537B2 (en) | Magnetic recording medium | |
| JP2508733B2 (en) | Magnetic recording media | |
| JP3627298B2 (en) | Magnetic recording medium | |
| JP2667301B2 (en) | Magnetic recording media | |
| JPH04311813A (en) | Magnetic recording medium | |
| JP2941849B2 (en) | Magnetic recording media | |
| JPH0432020A (en) | Magnetic recording medium |