SURFACE PROTECTING FILM FOR MAGNETIC RECORDING MEDIUM
- 申请公布号：
- KR900001142(B1)
- 申请号：
- KR19890019859
- 申请日期：
- 1989.12.26
- 申请公布日期：
- 1990.02.27
- 申请人：
- GOLD STAR CO.LTD.
- 发明人：
- LEE JUNG-HWAN
- 分类号：
- G11B5/72;(IPC1-7):G11B5/72
- 主分类号：
- G11B5/72
- 摘要：
- The protective coating is made by (a) forming acrylate copolymer or polyester protective coating layer (4) at the shape of island on a thin magnetic layer (3), coated on the upper surface of base film (2) of magnetic recording medium (I), A (b) forming lubricable protective coating layer (5) with liq. lubricating agent, composed of silicone and flurocarbon lubricating agent, on the surface (6) of magnetics; and (c) forming other protective coating layer (7) on the lower surface of base film (2).
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