JPS58218045A - Production of magnetic recording medium - Google Patents

Production of magnetic recording medium

Info

Publication number
JPS58218045A
JPS58218045A JP9923882A JP9923882A JPS58218045A JP S58218045 A JPS58218045 A JP S58218045A JP 9923882 A JP9923882 A JP 9923882A JP 9923882 A JP9923882 A JP 9923882A JP S58218045 A JPS58218045 A JP S58218045A
Authority
JP
Japan
Prior art keywords
polymer film
calender treatment
treatment
magnetic recording
cooling
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.)
Pending
Application number
JP9923882A
Other languages
Japanese (ja)
Inventor
Soichi Matsuzaki
松崎　壮一
Minoru Osada
実 長田
Seiji Yasui
政治 安井
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.)
Lincstech Circuit Co Ltd
Original Assignee
Hitachi Condenser Co Ltd
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 Hitachi Condenser Co Ltd filed Critical Hitachi Condenser Co Ltd
Priority to JP9923882A priority Critical patent/JPS58218045A/en
Publication of JPS58218045A publication Critical patent/JPS58218045A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
    • G11B5/84—Processes or apparatus specially adapted for manufacturing record carriers
    • G11B5/85—Coating a support with a magnetic layer by vapour deposition

Landscapes

  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Casting Or Compression Moulding Of Plastics Or The Like (AREA)
  • Manufacturing Of Magnetic Record Carriers (AREA)

Abstract

PURPOSE:To improve the thermal deterioration of a polymer film occuring in a calender treatment, by subjecting a polymer film to the calender treatment then subjecting the surface of the polymer film which is not applied with the calender treatment to a cooling treatment. CONSTITUTION:A polymer film of polyester, PE, polyimide, etc. is passed between rolls and is thereby hot-rolled, whereafter a calender treatment is applied on one surface thereof. The polymer film is then run in such a way that the uncalendered surface contacts with the cooling plate kept at <=150 deg.C effective for cooling to cool the one surface. Ferromagnetic metal of iron, cobalt, nickel or the like is further stuck on the calendered surface of the polymer film by a diagonal vapor deposition method or ion plating method at the prescribed incident angle maintained to the normal of said film, whereby a magnetic material layer is formed. If necessary, a protective layer consisting of metal, metallic oxide, or polymer material is formed on the magnetic material layer to provide lubricity and corrosion resistance.

Description

【発明の詳細な説明】 本発明はカレンダ処理を施す磁気記録媒体の製造方法に
関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a magnetic recording medium that undergoes calendering.

磁気テープ等の磁気記録媒体の基体としてポリエステル
等の高分子フィルムが用いられているが。Polyester films such as polyester are used as substrates for magnetic recording media such as magnetic tapes.

表面の粗さによる巻き取りに（さな防止する□ために、
高分子フィルム中に触媒や無機質充填を混入することが
ある。To prevent winding due to surface roughness (□)
Catalysts and inorganic fillers may be mixed into the polymer film.

しかしながら、このような処理は一般に、塗布型のもの
について適しており、現在実用化され始めた基体に強磁
性体金属を真空蒸着法等により付着したものについては
不適当である。However, such treatment is generally suitable for coating type materials, and is not suitable for materials that are currently being put into practical use, in which ferromagnetic metal is deposited on a substrate by vacuum evaporation or the like.

そのため、蒸着型に用いられる高分子フィルムには、一
般に、カレンダ処理を施し一面を平坦化している。とこ
ろが、このカレンダ処理の際に。Therefore, polymer films used for vapor deposition are generally subjected to calendering treatment to flatten one surface. However, during this calendar processing.

高分子フィルムの一面に高熱を付加しなければならず、
そのために２機械的強度等が低下するという欠点があっ
た。High heat must be applied to one side of the polymer film,
Therefore, there was a drawback that mechanical strength and the like decreased.

本発明は９以上の欠点を改良し、カレンダ処理による高
分子フィルムの熱劣化を改良しうる磁気記録媒体の製造
方法の提供を目的とするものである。An object of the present invention is to provide a method for manufacturing a magnetic recording medium that can improve the above-mentioned drawbacks and improve the thermal deterioration of polymer films caused by calendering.

本発明は、上記の目的を達成するために、高分子フィル
ムにカレンダ処理を施した後、前記高分子フィルムのカ
レンダ処理の施されていない面に冷却処理を施すことを
特徴とする磁気記録媒体の製造方法を提供するものであ
る。In order to achieve the above object, the present invention provides a magnetic recording medium characterized in that after a polymer film is calendered, a cooling treatment is applied to the non-calendered surface of the polymer film. The present invention provides a method for manufacturing.

以下１本発明の詳細な説明する。The present invention will be explained in detail below.

先ず−ポリエステルやポリエチレン、ポリイミド、ポリ
アミド等の高分子フィルムなρ１．−ル間に通して熱間
圧延処理し、−面にカレンダ処理を施す。First, ρ1 is a polymer film such as polyester, polyethylene, polyimide, polyamide, etc. The - side is hot-rolled and the - side is calendered.

次に、この高分子フィルムをカレンダ処理を施ささい面
が温度が冷却に効果的な１５０℃以下に保持された冷却
板に接触するように、走行させ１片面を冷却する。Next, this polymer film is cooled by running it so that the calendered side contacts a cooling plate whose temperature is kept below 150° C., which is effective for cooling.

さらに、高分子フィルムの力、、レンダ処理を施した面
に鉄やコバルト、ニッケル、等の強磁性体金属を高分子
フィルムの法線に対し、、て所定の入射角を１゜ 維持させ斜めに、真空蒸着法や、７．、イオンブレーテ
ィング法、スバ・クリング法等に、１．、、、−一て付
着し磁性体層を形成する。Furthermore, by applying the force of the polymer film, ferromagnetic metals such as iron, cobalt, nickel, etc. are applied to the rendered surface to maintain a predetermined incident angle of 1° with respect to the normal line of the polymer film. 7. Vacuum deposition method. , ion brating method, Suba-Kling method, etc. 1. , , - is deposited to form a magnetic layer.

そして必要ならば、この磁性体層に金属や金属酸化物、
高分子物質からなる保護層を形成し潤滑性や耐触性を付
与する。If necessary, metal or metal oxide may be added to this magnetic layer.
Forms a protective layer made of polymeric material that provides lubricity and corrosion resistance.

上記の通り、カレンダ処理により高分子フィルムの一面
に高温が付加されるが、その直後１反対面を冷却してい
るので、高分子フィルムの熱劣化が防止され機械的強度
等の低下を防ぐことができる。As mentioned above, high temperature is applied to one side of the polymer film by calendering, but the opposite side is immediately cooled, which prevents thermal deterioration of the polymer film and prevents a decrease in mechanical strength, etc. Can be done.

以上の通り１本発明によれば、カレンダ処理による熱劣
化を防止できるので、特性の良い信頼性や耐久性等の改
良された磁気記録媒体の製造方法が得られる。As described above, according to the present invention, thermal deterioration due to calendering can be prevented, so a method for manufacturing a magnetic recording medium with good characteristics and improved reliability and durability can be obtained.

特許出願人　日文コンデンサ株式会社 □ｒ １：（ 罰 □ ・１１゜ □Patent applicant: Nichibun Capacitor Co., Ltd. □r 1:( punishment □ ・11° □

Claims (2)

【特許請求の範囲】[Claims] （１）　　高分子フィルムの一面にカレンダ処理を施し
、該カレンダ処理面に強磁性体金属を付着した磁気記録
媒体の製造方法において、高分子フィルムにカレンダ処
理を施した後、前記高分子フィルムのカレンダ処理の施
されていない面に冷却処理を施すことを特徴とする磁気
記録媒体の製造方法。(1) In a method for manufacturing a magnetic recording medium in which one side of a polymer film is calendered and a ferromagnetic metal is attached to the calendered surface, the polymer film is calendered and then the polymer film is A method for manufacturing a magnetic recording medium, characterized in that a cooling treatment is performed on a surface that has not been subjected to a calender treatment. （２）　冷却処理の温度が１５０℃以下である特許請求
の範囲第１項記載の磁気記録媒体の製造方法。(2) The method for manufacturing a magnetic recording medium according to claim 1, wherein the temperature of the cooling treatment is 150° C. or less.
JP9923882A 1982-06-11 1982-06-11 Production of magnetic recording medium Pending JPS58218045A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9923882A JPS58218045A (en) 1982-06-11 1982-06-11 Production of magnetic recording medium

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9923882A JPS58218045A (en) 1982-06-11 1982-06-11 Production of magnetic recording medium

Publications (1)

Publication Number Publication Date
JPS58218045A true JPS58218045A (en) 1983-12-19

Family

ID=14242104

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9923882A Pending JPS58218045A (en) 1982-06-11 1982-06-11 Production of magnetic recording medium

Country Status (1)

Country Link
JP (1) JPS58218045A (en)

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