JPS58118034A - Production of magnetic recording medium - Google Patents
Production of magnetic recording mediumInfo
- Publication number
- JPS58118034A JPS58118034A JP21284281A JP21284281A JPS58118034A JP S58118034 A JPS58118034 A JP S58118034A JP 21284281 A JP21284281 A JP 21284281A JP 21284281 A JP21284281 A JP 21284281A JP S58118034 A JPS58118034 A JP S58118034A
- Authority
- JP
- Japan
- Prior art keywords
- substrate
- supporter
- magnetic recording
- recording medium
- roll
- 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
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C14/00—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
- C23C14/22—Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material characterised by the process of coating
- C23C14/54—Controlling or regulating the coating process
- C23C14/541—Heating or cooling of the substrates
-
- 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
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- Materials Engineering (AREA)
- Mechanical Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、高分子成形物基板上の金属強磁性層を磁気記
録層とする蒸着テープ等の磁気記録媒体の製造方法に係
シ、走行性能の改良された、磁気記録媒体の製造に適し
た方法の提供を目的とする。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing a magnetic recording medium such as a vapor-deposited tape in which a metal ferromagnetic layer on a polymer molded substrate is used as a magnetic recording layer. The purpose is to provide a method suitable for manufacturing recording media.
短波長記録を実現するために、記録媒体は飽和磁束密度
を高め、保磁力を高め、かつ磁性層厚みを薄くする努力
が払われてきた。その究極の形態として、古くからいわ
れていた、蒸着テープが近年一部笑用に供されるに至っ
て、各方面で性能向上と、製造方法の改良が肩々と進め
られている。In order to realize short wavelength recording, efforts have been made to increase the saturation magnetic flux density, increase the coercive force, and reduce the thickness of the magnetic layer of the recording medium. Vapor-deposited tape, which has long been said to be the ultimate form of tape, has come into use in recent years, and improvements in performance and manufacturing methods are being made in various fields.
その中にあって走行性能の改良は、従来の塗布形での技
術が転用できず、困難な課題のびとっである。Among these, improving running performance remains a difficult task as conventional coating-type technology cannot be used.
磁性面を有する側と基板の反対側に、滑剤を含むコーテ
ィング層を形成することが最も一般的であるが、耐久l
1(1:に於て満足すべきものが得られていない。The most common method is to form a coating layer containing a lubricant on the side with the magnetic surface and the opposite side of the substrate.
1 (1: Satisfactory results have not been obtained.
即ち、順化亜鉛、炭1#カルシウム等の微粒子を添加し
形状効果に期待することが、蒸着テープにおいては困襄
tであることに」:る。即ち、かかる微粒子を裏面のみ
に突出式せ得ないために、磁性面の表面粗さを大きくし
てしまい、電磁変換特性を損うからである。In other words, it is difficult to add fine particles such as acclimatized zinc or charcoal 1# calcium and expect a shape effect in the case of vapor-deposited tapes. That is, since such fine particles cannot be made to protrude only from the back surface, the surface roughness of the magnetic surface increases, impairing the electromagnetic conversion characteristics.
本発明はかかる点に鑑みなされたもので、断面構成は第
2図に示すもので代表される。The present invention has been made in view of this point, and the cross-sectional configuration is represented by that shown in FIG.
図において基板9は、ポリエチレンテレフタレート等の
プラスチックフィルムで、あらかじめ、片方又は両方の
面にミミズ状の微小突起からなる形状のコーティング層
を有するものであっても良い。In the figure, the substrate 9 is a plastic film made of polyethylene terephthalate or the like, and may have a coating layer in the shape of earthworm-like minute protrusions on one or both surfaces in advance.
その一方の面には、強磁性全属地・、必要に応じて非磁
性層との多層構成からなる、磁気記録層1oが配設され
る。On one surface thereof, a magnetic recording layer 1o is disposed, which has a multilayer structure including a ferromagnetic all-metallic layer and a nonmagnetic layer if necessary.
11(d[粗面を模式的に示すものである。この粗面1
1は後述する製造方法に」:す1%られるものであり、
場合によってはこの粗面上に滑剤を塗布して更に実用特
性を改良することも可能である。第1図に(d:本発明
を実施するための装置の要部イアq成を示す。11 (d [This schematically shows a rough surface. This rough surface 1
1 is 1% due to the manufacturing method described below,
In some cases, it is also possible to coat this rough surface with a lubricant to further improve its practical properties. FIG. 1(d) shows the configuration of the main parts of the apparatus for carrying out the present invention.
図に示す」:うに、基板1は、回転支持体2に沿って、
送シ出し軸3より、巻き取り軸4へと移動する!際、蒸
発源5より放射される蒸気流に」:リマスク6で一部入
射角の限定を受けた状態で蒸着される。As shown in the figure: the substrate 1 is placed along the rotating support 2,
Move from the feed shaft 3 to the take-up shaft 4! At this time, the vapor is deposited on the vapor flow emitted from the evaporation source 5 with the angle of incidence partially limited by the remask 6.
回転支持体2は、内部に媒体を循環させて、表面温度を
一足に保持し、基板の受ける熱影響を軽減するため、冷
却作用を行う役目もしている。7が本発明において重要
な要素をなす熱ロールである。このロールγを中心線平
均相さが例えばo、oeμの表面で構j反し、かつ表面
温度を、プラスチック基板のガラス転移点温度をTqと
すると、1.3Tq以」二に保持することで、後述の走
行性能が得られる。補助ロール8は、転Aシ点温度Tq
より低目に設定し、シワの発生を防ぐようにする。The rotating support body 2 circulates a medium therein to keep the surface temperature at a certain level, and also has a cooling effect in order to reduce the thermal influence on the substrate. 7 is a hot roll which is an important element in the present invention. By setting this roll γ at a surface with a centerline average phase of, for example, o, oeμ, and maintaining the surface temperature at 1.3 Tq or higher, where Tq is the glass transition temperature of the plastic substrate, The driving performance described below can be obtained. The auxiliary roll 8 has a rolling point temperature Tq
Set it lower to prevent wrinkles from forming.
転移点温度Tqを境にして若干効果がみられるが、安定
性に欠けるため、1.3Tgを目安にするものである。Although some effect is seen at the transition point temperature Tq, it lacks stability, so 1.3 Tg is used as a guideline.
上限はむしろシワ発生の問題以外の面から決められ、本
発明の効果を安定に得るには、2Tgまでで充分であろ
うが、フィルムの移動速度、フィルムにかかる張力によ
り、適切な範囲の値に選ばれるべきである。The upper limit is rather determined from aspects other than the problem of wrinkle generation, and up to 2 Tg is probably sufficient to stably obtain the effects of the present invention, but it may be necessary to set a value within an appropriate range depending on the moving speed of the film and the tension applied to the film. should be selected.
次に具体的に本発明の詳細な説明する。Next, the present invention will be specifically explained in detail.
〔実施例1〕
ポリエチレンテレフタレートフィルム(J19.5 μ
、 Tg =69.5℃)上にαを5 X 10 ”T
orrの酸素雰囲気で、0.15μの厚さに蒸着した。[Example 1] Polyethylene terephthalate film (J19.5μ
, Tg = 69.5℃) and α on 5 x 10”T
The film was deposited to a thickness of 0.15 μm in an oxygen atmosphere of 0.0 m.
入射角は4o0以上で、フィルム移動速度は35−nで
、回転支持体(直径1m)の温度は15℃±1℃に制御
し、熱ロール(直径116 ms ) 表面は中心線
平均a’rtざ0.07μとし、温度をハコ90℃、B
=110”C、C=130”C(7)3水準を選んだ、
同一の巻取り系で早送りによる巻き乱れの■無を調べた
結果を第1衣に示す。なおテープ幅は7−2長さは10
0mである。従来例は、熱ロールの温度を室温に保持し
た場合である。用いられたポリエチレンテレフタレート
フィルムは表面用さがC,L、A値で0.01μである
。The incident angle was 4o0 or more, the film moving speed was 35-n, the temperature of the rotating support (diameter 1 m) was controlled at 15 °C ± 1 °C, and the surface of the heating roll (diameter 116 ms) was adjusted to the centerline average a'rt. The diameter is 0.07μ, the temperature is 90℃, B
= 110"C, C = 130"C (7) 3 levels were selected,
The results of examining the occurrence of winding disorder due to fast forwarding using the same winding system are shown in the first column. The tape width is 7-2 and the length is 10.
It is 0m. The conventional example is a case where the temperature of the heat roll is maintained at room temperature. The polyethylene terephthalate film used has a surface thickness of 0.01 μ in terms of C, L, and A values.
第1表
〔実施例2〕
表1■粗さC,L、A値が0.007μのポリエチレン
テレフタレートフィルム(T(Jニア1℃、厚10.5
μ)−に6 ′ −
にCo80%N’i 20%を酸素分圧2×1O−5T
orrの真空中で、0.12μの厚ざに蒸着した。他の
条件は実施例1と同様でハコ96℃、B:120℃。Table 1 [Example 2] Table 1 ■ Polyethylene terephthalate film with roughness C, L, and A values of 0.007 μ (T (J near 1°C, thickness 10.5
μ) − to 6′ − to Co80%N′i 20% to oxygen partial pressure 2×1O−5T
The film was deposited to a thickness of 0.12 μm in a vacuum of 0.03 m. Other conditions were the same as in Example 1, box: 96°C, B: 120°C.
(:=135℃の3水準に加えて、AとBの条件では更
に、滑剤を含む樹脂をリバースコーターで約0.1μの
厚さに塗布した。樹脂としてはポリスチレン2エポキシ
等によらず、又滑剤としては種々の飽和脂肪酸の種類に
よらず、はとんど、本発明の形状に」こる効果が優先的
にあられれていると思える結果が得られた。その結果を
第2表に示す。(: In addition to the three levels of 135°C, under conditions A and B, a resin containing a lubricant was applied to a thickness of approximately 0.1μ using a reverse coater.The resin was not polystyrene 2 epoxy, etc. In addition, as a lubricant, regardless of the type of saturated fatty acid, results were obtained that seemed to have a preferential effect on the shape of the present invention.The results are shown in Table 2. show.
第2表
その他、黙ロールの中心線、平均用さO,OSμ0.1
μ、 0.14μ、0.2μのいずれについても、同様
の効果をイイrimしている。Table 2 Others: center line of silent roll, average value O, OSμ0.1
Similar effects are obtained for both μ, 0.14μ, and 0.2μ.
基板として、ポリエチレンナフタレート、ポリアセテ−
1・、ポリアミド、ポリイミドの谷フィルムについても
同様であった。又、蒸看心に」:らず、蒸着層の厚与も
0.05μから0.3μの範囲で効果の要らないことを
411M ffm している。熱ロールの和ざは規則性
を工7チングによシもたぜることも有効であるが、ラン
ダムであっても充分天川には供し得る。As a substrate, polyethylene naphthalate, polyacetate
The same was true for the valley films of 1., polyamide, and polyimide. In addition, it has been found that no effect is required when the thickness of the vapor deposited layer is within the range of 0.05 μm to 0.3 μm. It is effective to improve the regularity of the hot rolls by engineering, but even randomness is sufficient for Amagawa.
いずれのノ易合も中心腕平均粗き幻:熱ロールの鉗き以
下になる′Ii、+1向はあるが、オ旧用として作用し
イ1するとともに、屈面の形JjWがグラスチックその
ものに行なわれるため、巻回してのいわゆる形状転写も
無視できる。In either case, the center arm is an average rough illusion: there is a +1 direction where it becomes less than the forceps of the heat roll, but it acts as an old one and the curved surface shape JjW is the same as the glass stick. Therefore, the so-called shape transfer caused by winding can also be ignored.
以上のように不発り1によると、巻き乱れの少ない、す
なわち走行性のすぐれた磁気記録媒体を容易にイ1する
ことかでき、その工菜的価値は犬である。As described above, according to the misfire 1, it is possible to easily produce a magnetic recording medium with little winding disorder, that is, with excellent running properties, and its engineering value is outstanding.
第11ヌ]は不発明の実施例において用いられた製造装
抽二の一例の要部を示す図、第2図は同じく不発明の実
施例にあ・いて製造される磁気記録媒体の断面図である
。
1.9・・・・・・基板、2−・・・・回転支持体、6
・・・・・マスク、7・・・・・・熱ロール、10・・
・・・・磁気記錯層。
代理人の氏名 弁理士 中 尾 敏 男 ほか1名第1
図
す
」。
第2図
一19!
、 f。11] is a diagram showing a main part of an example of a manufacturing equipment drawer used in the embodiment of the invention, and FIG. 2 is a cross-sectional view of a magnetic recording medium manufactured using the embodiment of the invention. It is. 1.9... Substrate, 2-... Rotating support, 6
...Mask, 7...Heat roll, 10...
・・・Magnetograph layer. Name of agent: Patent attorney Toshio Nakao and 1 other person No. 1
"Illustrate". Figure 2-19! , f.
Claims (1)
に蒸射法に」:り強磁性層を形成した後、上記基板のガ
ラス転移点をTqとする時、表面温度が1゜3Tg以上
に制御された熱ローラにて、」二記基板の強磁性層が形
成されていないfil!lの面の形状を制御することを
特徴とする磁気記録媒体の製造方法。After forming a ferromagnetic layer by vapor deposition on one side of a polymer molded substrate moving along a rotating support, the surface temperature is 1°3Tg, where the glass transition point of the substrate is Tq. With the heat roller controlled as above, the ferromagnetic layer of the substrate 2 is not formed! 1. A method of manufacturing a magnetic recording medium, comprising controlling the shape of a surface of l.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21284281A JPS58118034A (en) | 1981-12-29 | 1981-12-29 | Production of magnetic recording medium |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP21284281A JPS58118034A (en) | 1981-12-29 | 1981-12-29 | Production of magnetic recording medium |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS58118034A true JPS58118034A (en) | 1983-07-13 |
Family
ID=16629238
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP21284281A Pending JPS58118034A (en) | 1981-12-29 | 1981-12-29 | Production of magnetic recording medium |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS58118034A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61187127A (en) * | 1985-02-15 | 1986-08-20 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic recording medium |
-
1981
- 1981-12-29 JP JP21284281A patent/JPS58118034A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS61187127A (en) * | 1985-02-15 | 1986-08-20 | Matsushita Electric Ind Co Ltd | Manufacture of magnetic recording medium |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JPS61139932A (en) | Production of magnetic recording medium | |
US4474832A (en) | Magnetic recording media | |
JPS58118034A (en) | Production of magnetic recording medium | |
JPH0626018B2 (en) | Method of manufacturing magnetic recording medium | |
JPS61187127A (en) | Manufacture of magnetic recording medium | |
JPS61289533A (en) | Manufacture of magnetic recording medium and its device | |
JPS58121131A (en) | Production of magnetic recording medium | |
JPH06101029A (en) | Production of magnetic recording medium | |
JP2668953B2 (en) | Manufacturing method of magnetic recording medium | |
JPS58115634A (en) | Manufacture of magnetic recording medium | |
JPS62219234A (en) | Production of magnetic recording medium | |
JPS60205831A (en) | Production of magnetic recording medium | |
JPH0526249B2 (en) | ||
JPH01222050A (en) | Manufacture of vacuum deposition apparatus and magnetic recording medium and magnetic recording medium | |
JPH0121534B2 (en) | ||
JPH01273221A (en) | Production of thin metallic film | |
JPS60117420A (en) | Method for forming continuous thin film | |
JPH02148416A (en) | Method and apparatus for producing magnetic recording medium | |
JPH0656650B2 (en) | Magnetic recording medium | |
JPS644254B2 (en) | ||
JPS5922234A (en) | Production of vertical magnetic recording medium | |
JPS6032127A (en) | Production of magnetic recording medium | |
JPH0518178B2 (en) | ||
JPH0227523A (en) | Method and apparatus for producing magnetic recording medium | |
JPS6124023A (en) | Manufacture of magnetic recording medium |