JPS62176771A - Polishing tape - Google Patents
Polishing tapeInfo
- Publication number
- JPS62176771A JPS62176771A JP1859486A JP1859486A JPS62176771A JP S62176771 A JPS62176771 A JP S62176771A JP 1859486 A JP1859486 A JP 1859486A JP 1859486 A JP1859486 A JP 1859486A JP S62176771 A JPS62176771 A JP S62176771A
- Authority
- JP
- Japan
- Prior art keywords
- polishing
- vinyl
- tape
- abrasive
- agent
- 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
- 238000005498 polishing Methods 0.000 title abstract description 27
- 238000000576 coating method Methods 0.000 claims abstract description 20
- 239000011248 coating agent Substances 0.000 claims abstract description 19
- WGLPBDUCMAPZCE-UHFFFAOYSA-N Trioxochromium Chemical compound O=[Cr](=O)=O WGLPBDUCMAPZCE-UHFFFAOYSA-N 0.000 claims abstract description 7
- 229910000423 chromium oxide Inorganic materials 0.000 claims abstract description 7
- 239000011230 binding agent Substances 0.000 claims description 10
- IMROMDMJAWUWLK-UHFFFAOYSA-N Ethenol Chemical compound OC=C IMROMDMJAWUWLK-UHFFFAOYSA-N 0.000 claims description 5
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 claims description 5
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 5
- 239000003082 abrasive agent Substances 0.000 claims description 4
- 229920002554 vinyl polymer Polymers 0.000 abstract description 18
- 239000003795 chemical substances by application Substances 0.000 abstract description 10
- 125000000391 vinyl group Chemical group [H]C([*])=C([H])[H] 0.000 abstract description 8
- 239000007788 liquid Substances 0.000 abstract description 5
- 239000002245 particle Substances 0.000 abstract description 5
- 229920001577 copolymer Polymers 0.000 abstract description 2
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000007767 bonding agent Substances 0.000 abstract 4
- ZWEHNKRNPOVVGH-UHFFFAOYSA-N 2-Butanone Chemical compound CCC(C)=O ZWEHNKRNPOVVGH-UHFFFAOYSA-N 0.000 description 6
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 5
- 239000011247 coating layer Substances 0.000 description 5
- 239000008199 coating composition Substances 0.000 description 4
- -1 polyethylene terephthalate Polymers 0.000 description 4
- 229920000139 polyethylene terephthalate Polymers 0.000 description 4
- 239000005020 polyethylene terephthalate Substances 0.000 description 4
- XEKOWRVHYACXOJ-UHFFFAOYSA-N Ethyl acetate Chemical compound CCOC(C)=O XEKOWRVHYACXOJ-UHFFFAOYSA-N 0.000 description 3
- YXFVVABEGXRONW-UHFFFAOYSA-N Toluene Chemical compound CC1=CC=CC=C1 YXFVVABEGXRONW-UHFFFAOYSA-N 0.000 description 3
- 229920002433 Vinyl chloride-vinyl acetate copolymer Polymers 0.000 description 3
- 230000000052 comparative effect Effects 0.000 description 3
- 238000007334 copolymerization reaction Methods 0.000 description 3
- MTHSVFCYNBDYFN-UHFFFAOYSA-N diethylene glycol Chemical compound OCCOCCO MTHSVFCYNBDYFN-UHFFFAOYSA-N 0.000 description 3
- 238000006116 polymerization reaction Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- ZJCCRDAZUWHFQH-UHFFFAOYSA-N Trimethylolpropane Chemical compound CCC(CO)(CO)CO ZJCCRDAZUWHFQH-UHFFFAOYSA-N 0.000 description 2
- DKPFZGUDAPQIHT-UHFFFAOYSA-N butyl acetate Chemical compound CCCCOC(C)=O DKPFZGUDAPQIHT-UHFFFAOYSA-N 0.000 description 2
- 229920002678 cellulose Polymers 0.000 description 2
- 239000001913 cellulose Substances 0.000 description 2
- 239000007795 chemical reaction product Substances 0.000 description 2
- 238000004898 kneading Methods 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229920001228 polyisocyanate Polymers 0.000 description 2
- 239000005056 polyisocyanate Substances 0.000 description 2
- 229920002545 silicone oil Polymers 0.000 description 2
- 239000000126 substance Substances 0.000 description 2
- 229920006027 ternary co-polymer Polymers 0.000 description 2
- 229920001747 Cellulose diacetate Polymers 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000000654 additive Substances 0.000 description 1
- 238000005054 agglomeration Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- 229920006217 cellulose acetate butyrate Polymers 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 239000004205 dimethyl polysiloxane Substances 0.000 description 1
- 235000013870 dimethyl polysiloxane Nutrition 0.000 description 1
- 239000002270 dispersing agent Substances 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000945 filler Substances 0.000 description 1
- 230000005484 gravity Effects 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 239000010410 layer Substances 0.000 description 1
- 239000000314 lubricant Substances 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 125000005487 naphthalate group Chemical group 0.000 description 1
- 229920000435 poly(dimethylsiloxane) Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920005906 polyester polyol Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
- 229940083466 soybean lecithin Drugs 0.000 description 1
- 239000002023 wood Substances 0.000 description 1
- 229910000859 α-Fe Inorganic materials 0.000 description 1
Abstract
Description
【発明の詳細な説明】
（産業上の利用分野）
本発明は磁気記録再生装置の磁気ヘッドの精密研磨に用
いる研磨テープに関するものであり、とくにビデオ用あ
るいは高級オーディオ用の磁気ヘッドの平滑仕上に用い
る研磨テープに関するものである。Detailed Description of the Invention (Field of Industrial Application) The present invention relates to an abrasive tape used for precision polishing of magnetic heads of magnetic recording and reproducing devices, and is particularly suitable for smoothing magnetic heads for video or high-end audio. This invention relates to the polishing tape used.
（従来技術）
ビデオ用あるいは高級オーディオ用の磁気ヘッド等はテ
ープ摺動面の平滑性がとくに要求されるため、一般に磁
気ヘッドを製作する際粗削りの後研磨テープを用いてテ
ープ摺動面を平滑に仕上げている。このような研磨テー
プは可撓性を有する非磁性支持体に微細な研磨粒子等を
塗着したものであり、磁気ヘッドのテープ摺動面の曲面
形状になじんでこの面を精密に研磨仕上することができ
る。(Prior art) Magnetic heads for video or high-end audio require particularly smooth tape sliding surfaces, so when manufacturing magnetic heads, a polishing tape is generally used to smooth the tape sliding surface after rough cutting. It is being completed. This kind of abrasive tape is made by coating fine abrasive particles on a flexible non-magnetic support, and adapts to the curved shape of the tape sliding surface of the magnetic head to precisely polish this surface. be able to.
従来、このようなテープとしては例えば、酸化亜鉛（Ｚ
ｎ Ｏ）等からなる研磨剤と塩化ビニル−酢酸ビニル共
重合体等からなるバインダとポリイソシアネート等の硬
化剤を混練した塗液を支持体上にｍＷしたクリーニング
テープが知られている〈特開昭５３−１０２０１７号）
。Conventionally, such tapes include, for example, zinc oxide (Z
A cleaning tape is known in which a coating liquid prepared by kneading an abrasive such as nO), a binder such as a vinyl chloride-vinyl acetate copolymer, and a curing agent such as polyisocyanate is coated on a support in mW (Unexamined Japanese Patent Publication No. (Sho 53-102017)
.
しかしながら上記テープは主に磁気ヘッドに付着した叶
埃等を除去することを目的とづるものであってその目的
からして研磨剤もモース硬度４．５程度の酸化亜鉛等を
使用しているため、研磨剤の硬度が小さ過ぎて磁気ヘッ
ド研磨用のテープとしては不十分であった。However, the tape mentioned above is mainly intended to remove dust etc. attached to the magnetic head, and for that purpose, the abrasive used is zinc oxide, etc., which has a Mohs hardness of about 4.5. However, the hardness of the abrasive was too low to be used as a magnetic head polishing tape.
また、上記塗液は、バインダが塩化ビニル−酢酸ビニル
共重合体等からなるため研磨剤の分散性に欠けるうえ、
研磨層の硬度を補填する意味で硬化剤を用いているため
混練後塗着するまでの時間の良さによって塗液の硬化の
程度が異なるという問題があり、これにより支持体上塗
膜の表面性が劣りかつその程度のバラツキも大きいとい
う問題があった。塗膜の表面性が良好でない場合にはヘ
ッド表面に多数の傷が形成され、高感度、高Ｓ／Ｎ比が
要求されるビデオ用あるいは高級オーディオ用の磁気ヘ
ッドとして十分な特性を得ることが困難となる。In addition, since the binder of the above coating liquid is made of vinyl chloride-vinyl acetate copolymer, etc., it lacks the dispersibility of the abrasive, and
Since a curing agent is used to compensate for the hardness of the polishing layer, there is a problem in that the degree of curing of the coating solution varies depending on the time from kneading to coating. There was a problem that the quality was inferior and the degree of variation was large. If the surface properties of the coating film are not good, many scratches will be formed on the head surface, making it difficult to obtain sufficient characteristics as a magnetic head for video or high-end audio applications that require high sensitivity and high S/N ratio. It becomes difficult.
（発明の目的）
本発明は上記問題を解決するためになされたものであり
、磁気ヘッドを傷つけることなく十分に研磨でき、これ
により高特性の磁気ヘッドを製作し得る研磨テープを提
供することを目的とするものである。(Objective of the Invention) The present invention has been made to solve the above problems, and an object of the present invention is to provide a polishing tape that can sufficiently polish a magnetic head without damaging it, thereby making it possible to manufacture a magnetic head with high characteristics. This is the purpose.
（ｆｅ明の構成）
本発明の研磨テープは、酸化クロムからなる研磨剤、塩
化ビニル−酢酸ビニル−ビニルアルコールのみからなる
結合剤（バインダ）を含む塗膜を非磁性支持体上に形成
したことを特徴とづるものである。(Structure of Fe Akira) The abrasive tape of the present invention has a coating film containing an abrasive agent made of chromium oxide and a binder made only of vinyl chloride-vinyl acetate-vinyl alcohol formed on a non-magnetic support. It is characterized by
なお、上記研磨テープとは、いわゆるテープ形状のもの
のほか、ディスク形状あるいはシート形状のものも広く
含むものとする。Note that the above-mentioned polishing tape broadly includes not only so-called tape-shaped polishing tapes but also disc-shaped or sheet-shaped polishing tapes.
（発明の効果）
本発明の研磨テープによれば、研磨剤としてモース硬度
が８．５である適度に硬い酸化クロムを用いているから
、磁気ヘッドのテープ摺動面を傷っけることなく確実に
かつ十分に研磨することができる。また、バインダとし
て分散性のよい三元系共重合体である塩化ビニル−酢酸
ビニル−ビニルアルコールのみを使用しているから研磨
剤を塗液中に均一に分散させることができ、塗膜の表面
性を向上させることができる。さらに、分散性がよいた
めω１磨材が塗膜中に均一に存在しバインダーと研磨材
の結合力が大で塗膜強度が強くなり、従来のような研磨
材が凝集し塗膜強度が弱いものと異なり硬化剤を使用し
なくてもよいから塗液混練俊の経過時間により塗液の粘
度が大ぎく異なることはないため塗布しやすくそのため
、塗膜表面の表面性のバラツキの発生を防止することが
できる。(Effects of the Invention) According to the abrasive tape of the present invention, since moderately hard chromium oxide with a Mohs hardness of 8.5 is used as the abrasive, the tape sliding surface of the magnetic head can be reliably protected from damage. It can be polished quickly and thoroughly. In addition, since only vinyl chloride-vinyl acetate-vinyl alcohol, which is a ternary copolymer with good dispersibility, is used as a binder, the abrasive can be uniformly dispersed in the coating liquid, and the surface of the coating film is can improve sex. Furthermore, due to its good dispersibility, the ω1 abrasive exists uniformly in the coating film, and the binding force between the binder and the abrasive is large, increasing the strength of the coating, whereas conventional abrasives aggregate and reduce the strength of the coating. Unlike conventional coatings, there is no need to use a hardening agent, so the viscosity of the coating solution does not vary greatly depending on the elapsed time of mixing the coating solution, making it easier to apply and preventing variations in the surface properties of the coating film surface. can do.
（実 施 態 様） 以下、本発明の実ＩＭ態様について詳細に説明する。(Implementation mode) Hereinafter, the actual IM aspect of the present invention will be explained in detail.
本発明の実施態様による研磨テープは図示するように非
磁性支持体１と、この支持体１上に形成された塗布層２
から構成されている。塗布層２は、研磨剤３．結合剤（
バインダ）を含むものである。As shown in the figure, the polishing tape according to the embodiment of the present invention includes a non-magnetic support 1 and a coating layer 2 formed on the support 1.
It consists of The coating layer 2 is coated with an abrasive 3. Binding agent (
binder).
また、この研磨剤３はモース硬度８．５の酸化クロムの
研磨粒子からなり、上記結合剤は塩化ビニル−酢酸ビニ
ル−ビニルアルコールからなる。Further, this abrasive 3 is made of abrasive particles of chromium oxide having a Mohs hardness of 8.5, and the binder is made of vinyl chloride-vinyl acetate-vinyl alcohol.
上述した適度に硬い研磨剤３により、磁気ヘッド４のテ
ープ摺動面を傷つけることなく平滑に研削することがで
きる。なＪ３、この研磨粒子の粒子径は１０μＴｒＬ〜
０．０１μｍ程度であればよいが、最終仕上用として用
いる場合には１μｍ−０，１μｍ程度とするのが好まし
い。By using the moderately hard abrasive 3 described above, it is possible to grind the tape sliding surface of the magnetic head 4 smoothly without damaging it. J3, the particle size of this abrasive particle is 10μTrL ~
It may be about 0.01 μm, but when used for final finishing, it is preferably about 1 μm-0.1 μm.
このような研磨剤としては、例えばｒ Ｎ Ｄ −８０
１゜Ｎ Ｏ−８０２，Ｎ Ｏ−８０３（日本電工）Ｊ：
ｒＧ５．Ｇ７（日本化学工業）」がある。As such an abrasive, for example, r N D -80
1゜NO-802, NO-803 (Nippon Denko) J:
rG5. G7 (Nihon Kagaku Kogyo)".
この研磨剤３を分散させる塩化ビニル−酢酸ビニル−ビ
ニルアルコールは塩化ビニル酢酸ビニルに第３成分とし
てのビニルアルコールを結合させた３元系共重合体であ
り、第３成分としてのビニルアルコールを結合させるこ
とにより研磨剤３を分散させるかが大きくなり、従来研
磨剤３が部分的に凝集することにより生じていた磁気ヘ
ッドのｆｔ１ｌｌ！！ｉむらの発生を防止することがで
きる。The vinyl chloride-vinyl acetate-vinyl alcohol in which this polishing agent 3 is dispersed is a ternary copolymer in which vinyl chloride and vinyl acetate are combined with vinyl alcohol as a third component. By doing so, the degree of dispersion of the abrasive 3 becomes larger, and the ft1ll! of the magnetic head, which conventionally occurs due to partial agglomeration of the abrasive 3, increases. ! It is possible to prevent the occurrence of i-uniformity.
この塩化ビニル−酢酸ビニル−ビニルアルコールとして
は、例えば「エスレックＡ（積木化学）」： ｒＭＰＲ
−ＴＡ （８信化学〉に「ビニライトＶＡＧＨ（ＵＣＣ
）Ｊ ； ｒビンカビニル１００ＯＧ（電気化学工業）
」がある。As this vinyl chloride-vinyl acetate-vinyl alcohol, for example, "S-LEC A (Building Wood Chemical)": rMPR
-TA (8 Shin Chemical) “Vinilight VAGH (UCC)
) J ; r Vincavinyl 100OG (Denki Kagaku Kogyo)
” is there.
なお、塩化ビニル、酢酸ビニルおよびビニルアルコール
各成分の共重合比は研磨剤３を十分に分散させることが
でき、かつ塗布層２が十分な可撓性を有するような比率
とすべきであり、このような観点から塩化ビニルを５０
〜９８重け％、酢酸ビニルを０．５〜４０重徂％、ビニ
ルアルコールを１〜２０重Ｍ％とし、さらに好ましくは
塩化ビニルを８５〜９５重量％、酢酸ビニルを１〜５ｍ
ｆｆ１％、ビニルアルコールを３〜９重量％とする。な
お、平均重合度は２００〜７００程度であればよいが、
３５０〜ＳＯＯ程度とすればより好ましい。Note that the copolymerization ratio of vinyl chloride, vinyl acetate, and vinyl alcohol components should be such that the abrasive 3 can be sufficiently dispersed and the coating layer 2 has sufficient flexibility. From this perspective, vinyl chloride
-98% by weight, vinyl acetate 0.5-40% by weight, vinyl alcohol 1-20% by weight, more preferably vinyl chloride 85-95% by weight, vinyl acetate 1-5m
ff1% and vinyl alcohol 3 to 9% by weight. Note that the average degree of polymerization may be about 200 to 700, but
It is more preferable to set it to about 350 to SOO.
また、添加剤として分散剤、潤滑剤、フィラーを加える
こともできる。Moreover, a dispersant, a lubricant, and a filler can also be added as additives.
さらに、前述した非磁性支持体１としては、ポリエチレ
ンテレフタレート（ＰＥＴ）、ポリエチレン−２，６−
ナフタレート等のポリエステル類。Furthermore, as the non-magnetic support 1 mentioned above, polyethylene terephthalate (PET), polyethylene-2,6-
Polyesters such as naphthalate.
ポリエチレン、ポリプロピレン等のポリオレフィン類、
セルロース・ダイアセテート、セルロース・１〜リアセ
テート、セルロースアセテート・ブチレート、セルロー
スアセテ−ドブＯビオネート等のセルロース誘導体等が
用いられる。Polyolefins such as polyethylene and polypropylene,
Cellulose derivatives such as cellulose diacetate, cellulose 1-lyacetate, cellulose acetate butyrate, and cellulose acetate bionate are used.
なお、塗布層２の厚みは、磁気ヘッド４の形状、材質に
もよるが、この厚みがあまり大きいと、磁気ヘッドと研
磨テープの接触が悪くなるので、５０μｍ以下が好まし
い。The thickness of the coating layer 2 depends on the shape and material of the magnetic head 4, but if the thickness is too large, the contact between the magnetic head and the polishing tape will be poor, so it is preferably 50 μm or less.
つぎに実施例を挙げてさらに詳細に説明する。Next, a more detailed explanation will be given with reference to examples.
実 施 例
厚さ１２μｍのポリエチレンテレフタレート（［〕ＥＴ
）支持体上に下記の塗布組成の５μｍの厚さで塗布して
研磨テープ１を作った。なａ３、以下の説明において部
はすべて重Δ部（固形分重量）を示す。Example Polyethylene terephthalate ([]ET
) A polishing tape 1 was prepared by coating the following coating composition on a support to a thickness of 5 μm. In the following description, all parts indicate weight Δ parts (solid content weight).
塗 布 組 成
・Ｃｒ２０３（粒状、サイズ０．５μｍ径）・・・・・
・３００部
・塩化ビニル−酢酸ビニル−ビニルアルコール共重合体
く共重合比９１： ３： ６．重合度４２０）・・
・６０部
・シリコーン油 ・・・・・・０
．３部・メチルエチルケトン ・・・・・
・１５０部・酢酸ｎ−ブチル ・・・
・・・３００部比 較 例 １
次に、上記実施例に対する比較例として上記実施例と略
同様の支持体上に下記の塗布組成の混合液を塗布して研
磨テープ２を作った。なお、本比較例は特開昭５３−１
０２０１７号に開示されたサンプル〜α２４と同様のも
のである。Coating composition: Cr203 (granular, size 0.5μm diameter)...
- 300 parts - Vinyl chloride-vinyl acetate-vinyl alcohol copolymer, copolymerization ratio 91:3:6. Degree of polymerization 420)...
・60 parts ・Silicone oil ・・・・・・0
．． Part 3: Methyl ethyl ketone...
・150 parts・n-butyl acetate...
...300 copies Comparison Example 1 Next, as a comparative example to the above example, a polishing tape 2 was prepared by coating a liquid mixture having the following coating composition on a support substantially similar to that of the above example. This comparative example is based on Japanese Patent Application Laid-Open No. 53-1
This sample is similar to sample α24 disclosed in No. 02017.
塗 布 組 成
−ＺｎＯ・・・・・・ ３００部
（サイズ１２０μ亀径、モース硬度４．５）・塩化ビニ
ル−酢酸ビニル共重合体 ・・・・・・３４．７部（共
重合比８７：１３．重合度３５０）・ポリエステルポリ
オール ・・・・・・ ２１部（アジピンＭ１
モルとジエチレングリ
コール１モルとトリメチロールプロ
パン０．０６モルの反応生成物粘度
（７５℃） １０００ＣＰ 、比重１．１８０Ｉ−１価
６０９Ｍ価〈２）
・大豆レシチン ・・・・・・２．
４部・シリコーン油（ジメチル・ポリシロキサン）・・
・・・・０．１部
・ポリイソシアネート ・・・・・・ １
８部（３モルの２．４−トリレンジイワシ
アネート化合物と１モルのトリメチ
ロールプロパンの反応生成物の７５Ｗ［％酢酸エチル溶
液）
・メチルエチルケトン ・・・・・・／１
００部やトルエン ・・・
・・・ ４００部比 較 例 ２
さらに、実施例における研磨剤であるＣｒｚ０３をα−
８ｉｎ（粒状、サイズ０．５μ■径、モース硬度９．５
）に変え、他は実施例と同様の方法で研磨テープ３を作
った。Coating composition - ZnO 300 parts (size 120μ diameter, Mohs hardness 4.5) Vinyl chloride-vinyl acetate copolymer 34.7 parts (copolymerization ratio 87 :13.Polymerization degree 350)・Polyester polyol 21 parts (Adipine M1
The reaction product of 1 mole of diethylene glycol and 0.06 mole of trimethylolpropane has a viscosity (75°C) of 1000CP, a specific gravity of 1.180I - a monovalent value of 609M (2) - Soybean lecithin...2.
4 parts: Silicone oil (dimethyl polysiloxane)...
...0.1 part polyisocyanate ...1
8 parts (75W [% ethyl acetate solution of the reaction product of 3 moles of 2.4-tolylene diisocyanate compound and 1 mole of trimethylolpropane] ・Methyl ethyl ketone ....../1
00 parts or toluene...
... 400 copies Comparison Example 2 Furthermore, Crz03, which is the abrasive in the example, was
8in (granular, size 0.5μ diameter, Mohs hardness 9.5
), and other than that, polishing tape 3 was made in the same manner as in the example.
比 較 例 ３
ざらに、実施例における研磨剤であるＣｒｚ０３をＳ！
Ｏｚ（粒状、サイズ０．５μ辺径、モース硬度７）に変
え、他は実施例と同様の方法で研署テープ４を作った。Comparison Example 3 Roughly, Crz03, the abrasive in the example, was mixed with S!
A research station tape 4 was made in the same manner as in the example except that the material was granular, side diameter 0.5 μm, Mohs hardness 7.
以上の実施例と比較例の各研磨テープについてヘッド研
削時間と研削後にＪ３けるヘッド表面の傷の状態を調べ
た。その結果を下表に示す。For each of the abrasive tapes of the above Examples and Comparative Examples, the head grinding time and the state of scratches on the head surface after grinding were investigated. The results are shown in the table below.
上表において、ヘッド研削時間はフェライトヘッド１μ
ｍを研削するのに必要な時間である。またヘッド表面の
傷は研削後の磁気ヘッドのギヤツブ面を顕微鏡で見て確
認された長さ０．５酎当りの幅２μｍ以上の傷の本数で
ある。In the table above, the head grinding time is 1μ for the ferrite head.
This is the time required to grind m. Furthermore, the number of scratches on the head surface is the number of scratches with a width of 2 μm or more per 0.5 mm length, which was confirmed by looking at the gear surface of the magnetic head after grinding using a microscope.
上表から明らかなように、本実施例によりヘッド研削時
間を極めて短縮することができるとともに、磁気ヘッド
表面の大ぎなすり傷の発生を防止することができる。As is clear from the above table, according to this embodiment, the head grinding time can be extremely shortened, and the occurrence of large scratches on the surface of the magnetic head can be prevented.
図面を磁気ヘッドの研磨時にＪ３ける、本発明の一実施
態様による研磨テープの拡大断面図である。
１・・・非磁性支持体（ＰＥＴ）
２・・・塗 布 層
３・・・研 磨 剤
４・・・磁気ヘッドFIG. 3 is an enlarged cross-sectional view of a polishing tape according to an embodiment of the present invention, taken at J3 during polishing of a magnetic head. 1... Non-magnetic support (PET) 2... Coating layer 3... Polishing agent 4... Magnetic head
Claims (1)
支持体上に塗着してなる研磨テープにおいて、 前記研磨材が酸化クロムからなり、前記結合剤が塩化ビ
ニル−酢酸ビニル−ビニルアルコールのみからなるもの
であることを特徴とする研磨テープ。[Scope of Claims] An abrasive tape comprising an abrasive coating film containing an abrasive material and a binder applied onto a flexible non-magnetic support, wherein the abrasive material is made of chromium oxide, and the binder is made of chromium oxide. An abrasive tape comprising only vinyl chloride, vinyl acetate, and vinyl alcohol.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1859486A JPS62176771A (en) | 1986-01-30 | 1986-01-30 | Polishing tape |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1859486A JPS62176771A (en) | 1986-01-30 | 1986-01-30 | Polishing tape |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62176771A true JPS62176771A (en) | 1987-08-03 |
Family
ID=11975963
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1859486A Pending JPS62176771A (en) | 1986-01-30 | 1986-01-30 | Polishing tape |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62176771A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263851A (en) * | 2006-03-29 | 2007-10-11 | Koden Electronics Co Ltd | Direction detection device, inspection method of the direction detection device, adjustment method of the direction detection device, and control method of the direction detection device |
-
1986
- 1986-01-30 JP JP1859486A patent/JPS62176771A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2007263851A (en) * | 2006-03-29 | 2007-10-11 | Koden Electronics Co Ltd | Direction detection device, inspection method of the direction detection device, adjustment method of the direction detection device, and control method of the direction detection device |
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