Manufacturing method for a magnetic recording medium
US5415889A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Aug 19, 1994 |
| Grant date | May 16, 1995 |
| Priority date | — |
| Expiry date | Aug 19, 2014 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG11B5/84
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
Abstract
To manufacture a magnetic recording medium with reduced coating defects by effectively and reliably removing foreign matter that causes coating striations. In a manufacturing method for a magnetic recording medium that includes a process in which a magnetic layer is formed on a flexible support, the aforementioned magnetic layer is formed after cleaning the aforementioned flexible support by bringing it into contact with a rotating cleaning roll, the contact surface of which consists of at least an adhesive substance or with a cleaning member, the contact surface of which consists of at least a porous polymer and so providing a manufacturing method for a magnetic recording medium in which foreign matter, which causes coating striations, can be efficiently and reliably removed and in which it is possible to manufacture a magnetic recording medium with reduced coating defects.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.