METHOD AND APPARATUS FOR MANUFACTURING MAGNETIC RECORDING MEDIUM

摘要

A method and apparatus for manufacturing a magnetic recording medium at high efficiency. A flexible web is passed around first and second cooling cans. The web is reversed between the two cans so that the same surface of the web is directed to the outside on both cans. A single evaporation source produces an evaporated stream of magnetic film forming material which impinges on the web as it passes around both cans, thereby to form two films of the evaporated magnetic material on the same surface of the web.