JPS6467720A - Production of magnetic disk - Google Patents
Production of magnetic diskInfo
- Publication number
- JPS6467720A JPS6467720A JP22605787A JP22605787A JPS6467720A JP S6467720 A JPS6467720 A JP S6467720A JP 22605787 A JP22605787 A JP 22605787A JP 22605787 A JP22605787 A JP 22605787A JP S6467720 A JPS6467720 A JP S6467720A
- Authority
- JP
- Japan
- Prior art keywords
- circumferential part
- compd
- substrate
- magnetic
- film
- 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
Landscapes
- Paints Or Removers (AREA)
- Magnetic Record Carriers (AREA)
- Manufacturing Of Magnetic Record Carriers (AREA)
Abstract
PURPOSE:To thinly form a perpendicularly oriented magnetic Ba film by discharging a magnetic coating compd. from the inside circumferential part to the outside circumferential part of a disk substrate to coat said compd. on the substrate while changing the rotating speed of the substrate continuously in such a manner that the specified linear circumferential speed is maintained in the position of a nozzle port for discharging the magnetic coating compd., thereby forming the magnetic film. CONSTITUTION:The magnetic coating compd. is dropped always at the specified linear circumferential speed by shifting the dropping position of the magnetic coating compd. gradually from the inside circumferential part to the outside circumferential part and changing the linear circumferential speed gradually according to the dropping position. Namely, the rotating speed of the substrate is gradually lowered as the dropping positions shifts from the inside circumferential part to the outside circumferential part. The formation of the coated film is, therefore, executed while the outside edge part of the coated film which is previously half cured by the solvent of the coating compd. dropped afterward. The film thickness is thereby reduced.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22605787A JPS6467720A (en) | 1987-09-09 | 1987-09-09 | Production of magnetic disk |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP22605787A JPS6467720A (en) | 1987-09-09 | 1987-09-09 | Production of magnetic disk |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS6467720A true JPS6467720A (en) | 1989-03-14 |
Family
ID=16839121
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP22605787A Pending JPS6467720A (en) | 1987-09-09 | 1987-09-09 | Production of magnetic disk |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS6467720A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140354802A1 (en) * | 2013-05-31 | 2014-12-04 | Kabushiki Kaisha Topcon | Spectral Image Acquiring Device And Spectral Image Acquiring Method |
-
1987
- 1987-09-09 JP JP22605787A patent/JPS6467720A/en active Pending
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20140354802A1 (en) * | 2013-05-31 | 2014-12-04 | Kabushiki Kaisha Topcon | Spectral Image Acquiring Device And Spectral Image Acquiring Method |
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