JPS62273629A - Production of magnetic recording medium - Google Patents
Production of magnetic recording mediumInfo
- Publication number
- JPS62273629A JPS62273629A JP11669086A JP11669086A JPS62273629A JP S62273629 A JPS62273629 A JP S62273629A JP 11669086 A JP11669086 A JP 11669086A JP 11669086 A JP11669086 A JP 11669086A JP S62273629 A JPS62273629 A JP S62273629A
- Authority
- JP
- Japan
- Prior art keywords
- recording medium
- magnetic recording
- defects
- compd
- manufacturing
- 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
- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 238000007747 plating Methods 0.000 claims abstract description 12
- 229910018104 Ni-P Inorganic materials 0.000 claims abstract description 6
- 229910018536 Ni—P Inorganic materials 0.000 claims abstract description 6
- 238000000034 method Methods 0.000 claims abstract description 5
- 229910052698 phosphorus Inorganic materials 0.000 claims abstract description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims abstract description 3
- 239000011701 zinc Substances 0.000 claims description 8
- 238000000576 coating method Methods 0.000 claims description 5
- 239000011248 coating agent Substances 0.000 claims description 4
- HCHKCACWOHOZIP-UHFFFAOYSA-N Zinc Chemical compound [Zn] HCHKCACWOHOZIP-UHFFFAOYSA-N 0.000 claims description 2
- 230000003746 surface roughness Effects 0.000 claims description 2
- 229910052725 zinc Inorganic materials 0.000 claims description 2
- 229910052751 metal Inorganic materials 0.000 claims 1
- 239000002184 metal Substances 0.000 claims 1
- 150000003839 salts Chemical class 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 10
- 239000007788 liquid Substances 0.000 abstract 2
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000011592 zinc chloride Substances 0.000 abstract 1
- 235000005074 zinc chloride Nutrition 0.000 abstract 1
- JIAARYAFYJHUJI-UHFFFAOYSA-L zinc dichloride Chemical compound [Cl-].[Cl-].[Zn+2] JIAARYAFYJHUJI-UHFFFAOYSA-L 0.000 abstract 1
- 229910021511 zinc hydroxide Inorganic materials 0.000 abstract 1
- ONDPHDOFVYQSGI-UHFFFAOYSA-N zinc nitrate Inorganic materials [Zn+2].[O-][N+]([O-])=O.[O-][N+]([O-])=O ONDPHDOFVYQSGI-UHFFFAOYSA-N 0.000 abstract 1
- NWONKYPBYAMBJT-UHFFFAOYSA-L zinc sulfate Chemical compound [Zn+2].[O-]S([O-])(=O)=O NWONKYPBYAMBJT-UHFFFAOYSA-L 0.000 abstract 1
- 229910000368 zinc sulfate Inorganic materials 0.000 abstract 1
- 239000011686 zinc sulphate Substances 0.000 abstract 1
- 235000009529 zinc sulphate Nutrition 0.000 abstract 1
- 238000006243 chemical reaction Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 2
- 229910020676 Co—N Inorganic materials 0.000 description 1
- IGOJDKCIHXGPTI-UHFFFAOYSA-N [P].[Co].[Ni] Chemical compound [P].[Co].[Ni] IGOJDKCIHXGPTI-UHFFFAOYSA-N 0.000 description 1
- JCXGWMGPZLAOME-UHFFFAOYSA-N bismuth atom Chemical class [Bi] JCXGWMGPZLAOME-UHFFFAOYSA-N 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- SIBIBHIFKSKVRR-UHFFFAOYSA-N phosphanylidynecobalt Chemical compound [Co]#P SIBIBHIFKSKVRR-UHFFFAOYSA-N 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
Abstract
Description
【発明の詳細な説明】
８、発明の詳細な説明
〔産業上の利用分野〕
この発明は生産性の向上を図るようにした磁気記録媒体
の製造方法に関するものである。[Detailed Description of the Invention] 8. Detailed Description of the Invention [Field of Industrial Application] This invention relates to a method of manufacturing a magnetic recording medium that is designed to improve productivity.
磁気記録媒体に用いられる磁気記録媒体においては、磁
気記鏝の高密度化の要求に応えて、磁性被膜を形成する
ためのめつき液として、ｃ。In magnetic recording media used in magnetic recording media, c.
−ｐ（コバルト−リン）又はＣｏ−Ｎｉ−Ｐ （コバル
ト−ニッケルーリン）のめつき液が発表され、例えば特
開昭５０−１１９８０５号公報には第１表に示すＣｏ−
Ｎｉ−Ｐめつき液が、又特開昭４９−６５２０６号公報
にはＣｏ−Ｎｉ−Ｐめつき液に、ビスマスの金属塩を添
加することによって、電磁変換特性の向上を図ることが
開示されている。-P (cobalt-phosphorus) or Co-Ni-P (cobalt-nickel-phosphorus) plating solutions have been announced, for example, in JP-A-50-119805, Co-
Ni-P plating solution, and JP-A-49-65206 discloses that the electromagnetic conversion characteristics can be improved by adding bismuth metal salt to Co-Ni-P plating solution. ing.
第１表
このような磁性被膜を施した磁気記録媒体においては、
磁気記録媒体に情報の記録、及び記録した情報の読取り
における出力低下、記録欠陥等のデ７エクトが、例えば
５．２５インチの磁気記録媒体では、データ面で５個／
面以下が要求されている。Table 1 In magnetic recording media with such magnetic coatings,
For example, in a 5.25-inch magnetic recording medium, there are 5 defects such as output reduction and recording defects when recording information on a magnetic recording medium and reading recorded information.
below is required.
従来の磁気記録媒体の製造方法は以上のように行われる
ので、デ７エクトの発生が大きく歩Ｊｄｊりが悪い、即
ち生産性の向上が困雉であるという問題点があった。Since the conventional manufacturing method for magnetic recording media is carried out as described above, there is a problem in that the occurrence of defects is large and the step Jdj is poor, that is, it is difficult to improve productivity.
この発明は上記のような問題点を解消するためになされ
たもので、デフエクトの発生を減少することにより歩留
りを上げ、生産性の向上を図るようにした磁気記録媒体
の製造方法を得ることを目的とする。This invention was made to solve the above-mentioned problems, and aims to provide a method for manufacturing a magnetic recording medium that increases yield and productivity by reducing the occurrence of defects. purpose.
この発明に係る磁気記録媒体の製造方法は、Ｃｏ−又は
Ｃｏ−Ｎｉ−Ｐのめつき液に所定の量のＺｎ （亜鉛）
と添付したものである。The method for manufacturing a magnetic recording medium according to the present invention includes adding a predetermined amount of Zn (zinc) to a Co- or Co-Ni-P plating solution.
It is attached.
この発明における磁気記録媒体の製造方法は、デフエク
トが減少することにより生産性を向上する。The method for manufacturing a magnetic recording medium according to the present invention improves productivity by reducing defects.
以下、この発明の一実施例による磁気記録媒体の製造方
法について説明する。即ち、５．２５インチ用に作成し
たアルミ合金板からなるサブストレートにＮｉ−ｐ に
ッケルーりン）めっきによって非磁性被膜を施し、非磁
性被膜の面を所定の面粗さに研磨した磁気ディスク基板
を、所定の溶剤で洗浄、アルカリ脱脂で洗浄後水洗、酸
洗後水洗し、第２表に示す溶液組成のめっき液及び条件
で磁気記録媒体を製造した。A method of manufacturing a magnetic recording medium according to an embodiment of the present invention will be described below. In other words, a magnetic disk in which a non-magnetic coating is applied to a substrate made of an aluminum alloy plate made for 5.25 inches by Ni-p plating, and the surface of the non-magnetic coating is polished to a predetermined surface roughness. The substrates were cleaned with a predetermined solvent, alkaline degreased, washed with water, pickled and washed with water, and magnetic recording media were manufactured using the plating solutions and conditions shown in Table 2.
第 ２ 表
この発明の製造方法によって製造した磁気記録媒体の品
質を検証するために、この発明及び従来の製造方法によ
って、それぞれ５個の試料を作成し、円板テスターによ
って、電磁変換特性のデフエクトを測定し、第８表の結
果を得た。Table 2 In order to verify the quality of the magnetic recording medium manufactured by the manufacturing method of the present invention, five samples were prepared each by the present invention and the conventional manufacturing method, and the defects in electromagnetic conversion characteristics were measured using a disk tester. was measured, and the results shown in Table 8 were obtained.
なお、従来の製造方法におけるめっき条件はこの発明の
めつき条件と同様である。Note that the plating conditions in the conventional manufacturing method are similar to those in the present invention.
第 ８ 表
なお、上記実施例では、Ｚｎ ８０４ ｆ（添加した場
合にライて説明したが、Ｚｎ Ｃ１＠ 、 Ｚｎ（Ｈｏ
ｗｌ ＊又はＺｎ（ＯＨ１２等のＺｎ化合物を添加して
も、上記実施例と同様の結果を期待できる。Table 8 Note that in the above examples, the case where Zn 804 f (was added) was explained, but when Zn C1
Even if a Zn compound such as wl* or Zn(OH12 is added), the same results as in the above example can be expected.
以上のようにこの発明によれば、Ｃｏ−Ｐ又はＣｏ−Ｎ
ｉ−Ｐのめつき液に所定量のＺｎを添カロすることによ
り磁気記録媒体のデフエクト発生を著しく減少する。こ
れによって歩留りの向上即ち生産性を向上できる。As described above, according to the present invention, Co-P or Co-N
By adding a predetermined amount of Zn to the i-P plating solution, the occurrence of defects in magnetic recording media can be significantly reduced. As a result, yield can be improved, that is, productivity can be improved.
Claims (1)
所定の面粗さに加工し、Ｃｏ−Ｐ又はＣｏ−Ｎｉ−Ｐめ
つきによつて磁性被膜を形成する磁気記録媒体の製造方
法において、Ｃｏ−又はＣｏ−Ｎｉ−Ｐめつき液に所定
量の亜鉛の金属塩を添加することを特徴とする磁気記録
媒体の製造方法。Manufacture of a magnetic recording medium in which a non-magnetic coating applied on a disc-shaped aluminum alloy plate is processed to a predetermined surface roughness, and a magnetic coating is formed by Co-P or Co-Ni-P plating. A method for manufacturing a magnetic recording medium, comprising adding a predetermined amount of a zinc metal salt to a Co- or Co-Ni-P plating solution.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11669086A JPS62273629A (en) | 1986-05-21 | 1986-05-21 | Production of magnetic recording medium |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11669086A JPS62273629A (en) | 1986-05-21 | 1986-05-21 | Production of magnetic recording medium |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS62273629A true JPS62273629A (en) | 1987-11-27 |
Family
ID=14693451
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11669086A Pending JPS62273629A (en) | 1986-05-21 | 1986-05-21 | Production of magnetic recording medium |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS62273629A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6364621A (en) * | 1986-09-04 | 1988-03-23 | Denki Kagaku Kogyo Kk | Magnetic recording medium |
-
1986
- 1986-05-21 JP JP11669086A patent/JPS62273629A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6364621A (en) * | 1986-09-04 | 1988-03-23 | Denki Kagaku Kogyo Kk | Magnetic recording medium |
| JPH0451882B2 (en) * | 1986-09-04 | 1992-08-20 | Denki Kagaku Kogyo Kk |
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